CN104247544A

CN104247544A - Sending method and receiving method for control channel, user equipment and base station

Info

Publication number: CN104247544A
Application number: CN201380005360.4A
Authority: CN
Inventors: 高驰; 吴强; 李超君
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-04-08
Filing date: 2013-04-08
Publication date: 2014-12-24
Anticipated expiration: 2033-04-08
Also published as: CN104247544B; WO2014166045A1

Abstract

Provided are a sending method and a receiving method for a control channel, a user equipment and a base station. The sending method for a control channel comprises: mapping a common search space onto a downlink physical resource in accordance with a first mapping rule and mapping a dedicated search space onto the downlink physical resource in accordance with a second mapping rule, wherein the downlink physical resource onto which the common search space is mapped and the downlink physical resource onto which the dedicated search space is mapped are not overlapped; and sending control information borne by the common search space and control information borne by the dedicated search space on the downlink physical resources. The technical solution provided in the embodiments of the present invention can reduce the probability of the occurrence of a reception error on the user equipment and facilitates the user equipment obtaining more complete and accurate common control information and dedicated control information.

Description

Sending method and receiving method for control channel, user equipment and base station

The sending method method of reseptance of control channel, and the present invention relates to communication technical field, more particularly to a kind of sending method of control channel, method of reseptance, and user equipment and base station for user equipment and station technology field.

Background technology

In Long Term Evolution（Long Term Evolut ion, hereinafter referred to as：LTE) in the downlink transfer of communication system, evolved base station（Evolved Node B, hereinafter referred to as：ENB a Physical Downlink Shared Channel) will be sent for the user equipment being each dispatched to according to the result of scheduling（Phys ica l Downl ink Shared Channel, hereinafter referred to as：) and corresponding Physical Downlink Control Channel PDSCH（Phys ica l Downl ink Control Channel, hereinafter referred to as：PDCCH), wherein, PDSCH carries the data that eNB is sent to user equipment, PDCCH carries its correspondence PDSCH schedule information, the schedule information is mainly used to indicate corresponding PDSCH transport format information, includes distribution information, the size of transmission block, modulation coding mode, transmission rank and the precoding matrix information etc. of resource.PDCCH and PDSCH are time division multiplexings in a subframe.For generic cyclic prefix, each subframe include having in two time slots, each time slot 7 OFDMs (Or thogona l Frequency Divi s ion Mul t iplexing, hereinafter referred to as：OFDM) symbol, wherein, PDCCH is transmitted in the preceding beautiful symbols of n OF of first time slot, and n can take any one in 1,2,3,4 equivalences, and be dynamically changeable, and the remaining beautiful symbols of OF are then used for transmitting PDSCH.

In the further evolution of LTE communication system, due to needing to support multi-user installation multiple-input and multiple-output（Mul t ip le Input Mul t iple Output, hereinafter referred to as：MIMO coordinate to improve the performance of system) and between multiple cell, so as to result in the increase of scheduling user's set number simultaneously；But in one subframe of existing PDCCH capacity limit can scheduling user's set number number.Based on this, existing PDCCH is strengthened, a part of resource is marked off in original PDSCH region to transmit enhanced PDCCH (E-PDCCH), can thus improve PDCCH capacity or the number of scheduling user's set simultaneously.New enhancing control channel E-PDCCH domains, can be used for transmitting two control signaling search spaces：Public search space（Common search space) and dedicated search space（UE spec i f ic search space).Public search space, which carries, needs to be sent to all users in cell Common control information.Dedicated search space carries the dedicated control information for being specially sent to some user.Each user is required for detection public search space to obtain cell common control information, while dedicated search space is detected, to determine whether to be sent to the dedicated control information of oneself.

In the prior art, public search space and dedicated search space reflection are on physical resource, it is possible to be physically overlapping.The dedicated control information that the common control information of the public search space carrying of lap is carried with dedicated search space may be obscured, cause user equipment can not differentiate the dedicated control information that the common control information of public search space carrying or dedicated search space are carried, and finally make it that user equipment is high to the reception error rate of the control channel.The content of the invention

The embodiments of the invention provide a kind of sending method of control channel, method of reseptance, and user equipment and base station, to reduce the probability for occurring to receive mistake on a user device, more complete, accurate common control information and dedicated control information are obtained beneficial to user equipment.

One side there is provided a kind of sending method of control channel, including：

Public search space is mapped in downlink physical resource according to the first mapping ruler, and be mapped in dedicated search space in the downlink physical resource according to the second mapping ruler, wherein, the downlink physical resource for mapping the public search space and the downlink physical resource for mapping the dedicated search space be not overlapping；The control information of the public search space carrying and the control information of dedicated search space carrying are sent in the downlink physical resource

In the first with reference to one side is possible, the public search space is mapped to two time slots of a subframe, two time slots of the dedicated search space reflection a to subframe.

In combination first aspect or the first possible second are possible, described be mapped to public search space in downlink physical resource according to the first mapping ruler includes：

The public search space is mapped on one or more of first antenna port set antenna port；

Described be mapped in the dedicated search space in downlink physical resource according to the second mapping ruler includes：

By on one or more antenna ports of the dedicated search space reflection to the second antenna port set, wherein, send the antenna port of the control information of the public search space carrying and send it is described specially The antenna port of the control information carried with search space is different.

In with reference to first aspect or the first the third possible possibility, described be mapped to public search space in downlink physical resource according to the first mapping ruler includes：

The public search space is mapped on downlink physical running time-frequency resource according to the first mapping order；Described be mapped in the dedicated search space in downlink physical resource according to the second mapping ruler includes：

The dedicated search space is mapped on downlink physical running time-frequency resource according to the second mapping order.In possible 4th kind with reference to the third possible, described be mapped to public search space on downlink physical running time-frequency resource according to the first mapping order includes：

On the downlink physical running time-frequency resource, N information symbol of the control information that the public search space is carried is according to the sequence number Sequential Mapping from small to large of physical time-frequency resource into N number of physical time-frequency resource, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set；

Described be mapped in dedicated search space on downlink physical running time-frequency resource according to the first mapping order includes：

On the downlink physical running time-frequency resource, M information symbol of the control information that the dedicated search space is carried is according to the sequence number Sequential Mapping from big to small of physical time-frequency resource into the individual physical time-frequency resources of M

Second aspect there is provided a kind of method of reseptance of control channel, including：

Receive carrying public search space and the down channel in dedicated search space；

The control information of the public search space carrying is obtained on physical resource according to where the first mapping ruler from the down channel, and the control information of dedicated search space carrying is obtained on the physical resource according to where the second mapping ruler from the down channel, wherein, where the public search space downlink physical resource where downlink physical resource and the dedicated search space is not overlapping.

In the first with reference to second aspect is possible, above-mentioned public search space takes two time slots of a subframe, two time slots of one subframe of dedicated search space hold.

In with reference to second aspect or the first above-mentioned possible second of possibility, the control information of the public search space carrying is obtained on the above-mentioned physical resource according to where the first mapping ruler from the down channel to be included：

Where the down channel received from one or more of first antenna port set antenna port The control information of the public search space carrying is obtained in physical resource；

The control information for obtaining the carrying of dedicated search space from the physical resource where down channel according to the second mapping ruler includes：

The control information of the dedicated search space carrying is obtained from the physical resource where the down channel received on one or more of the second antenna port set antenna port, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying

In with reference to second aspect or the first above-mentioned the third possible possibility, the control information of the public search space carrying is obtained on the physical resource according to where the first mapping ruler from the down channel to be included：

According to the control information that the public search space carrying is obtained on the downlink physical running time-frequency resource where the first mapping order from the down channel；

The control information of dedicated search space carrying is obtained on the physical resource according to where the second mapping ruler from the down channel to be included：

According to the control information that the dedicated search space carrying is obtained on the downlink physical running time-frequency resource where the second mapping order from the down channel.

In possible with reference to above-mentioned the third possible 4th kind, the control information of public search space carrying is obtained on the downlink physical running time-frequency resource according to where the first mapping order from the down channel to be included：

On the downlink physical running time-frequency resource where the down channel, the control information of public search space carrying is obtained from N number of physical time-frequency resource according to the sequence number order from small to large of physical time-frequency resource, wherein, N is positive integer, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set；

The control information of dedicated search space carrying is obtained on the downlink physical running time-frequency resource according to where the second mapping order from the down channel to be included：

On the downlink physical running time-frequency resource where the down channel, the control information of dedicated search space carrying is obtained from M physical time-frequency resource according to the sequence number order from big to small of physical time-frequency resource, wherein, M is positive integer.

3rd aspect there is provided a kind of dispensing device of control channel, including：

Resource mapping module, for public search space to be mapped into downlink physical according to the first mapping ruler In resource, and dedicated search space is mapped in the downlink physical resource according to the second mapping ruler, wherein, the downlink physical resource for mapping the public search space and the downlink physical resource for mapping the dedicated search space be not overlapping；

Sending module, for sending the control information of the public search space carrying and the control information of dedicated search space carrying in the downlink physical resource.

Combine the 3rd aspect the first may in, above-mentioned resource mapping module is specifically for public search space to be mapped to two time slots of a subframe, by two time slots of the dedicated search space reflection a to subframe.

In with reference to the 3rd aspect or the first above-mentioned possible second of possibility, above-mentioned resource mapping module includes：

First resource map unit, for the public search space to be mapped into one or more of first antenna port set antenna port；

Secondary resource map unit, for by one or more antenna ports of the dedicated search space reflection to the second antenna port set, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying.

In with reference to the 3rd aspect or the first above-mentioned the third possible possibility, above-mentioned resource mapping module includes：

Information resources map unit, for the public search space to be mapped into downlink physical running time-frequency resource according to the first mapping order；

4th resource mapping unit, for the dedicated search space to be mapped into downlink physical running time-frequency resource according to the first mapping order.

In possible with reference to above-mentioned the third possible 4th kind, above-mentioned information resources map unit is specifically on the downlink physical running time-frequency resource, the N number of information symbol for the control information that the public search space is carried is according to the sequence number Sequential Mapping from small to large of physical time-frequency resource into N number of physical time-frequency resource, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set；4th resource mapping unit is specifically on the downlink physical running time-frequency resource, and M information symbol of the control information that the dedicated search space is carried is according to the sequence number Sequential Mapping from big to small of physical time-frequency resource into the individual resource elements of M.

4th aspect includes the dispensing device of above-mentioned control channel there is provided a kind of base station.

5th aspect there is provided a kind of reception device of control channel, including： Receiving module, the down physical channel for receiving carrying public search space and dedicated search space；Acquisition module, the control information of public search space carrying is obtained on the physical resource according to where the first mapping ruler from the down channel, and obtains according to second mapping ruler control information that dedicated search space is carried from the physical resource where the down channel.

In the first with reference to the 5th aspect is possible, above-mentioned public search space is mapped to two time slots of a subframe, two time slots of one subframe of dedicated search space reflection.

In combine the 5th aspect or the 5th aspect the first possible second is possible, above-mentioned acquisition module includes：

First acquisition unit, the control information for obtaining the public search space carrying from the physical resource where the down channel received on one or more of first antenna port set antenna port；Second acquisition unit, control information for obtaining the dedicated search space carrying from the physical resource where the down channel received on one or more of the second antenna port set antenna port, wherein, the control information of the public search space carrying is sent different with the antenna port for the control information for sending the dedicated search space carrying.

In the third possible possibility of the first with reference to the 5th aspect or the 5th aspect, above-mentioned acquisition module includes：

3rd acquiring unit, for according to the control information that the public search space carrying is obtained on the downlink physical running time-frequency resource where the first mapping order from the down channel；

4th acquiring unit, for according to the control information that the dedicated search space carrying is obtained on the downlink physical running time-frequency resource where the second mapping order from the down channel.

In possible 4th kind with reference to the third possible, above-mentioned 3rd acquiring unit is specifically on the downlink physical running time-frequency resource where the down channel, the control information of public search space carrying is obtained from Ν physical time-frequency resource according to the sequence number order from small to large of physical time-frequency resource, wherein, Ν is positive integer, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set, 4th acquiring unit is specifically on the downlink physical running time-frequency resource where the down channel, the control information of dedicated search space carrying is obtained from Μ physical time-frequency resource according to the sequence number order from big to small of physical time-frequency resource, wherein, Μ is positive integer.

6th aspect includes the reception device of above-mentioned control channel there is provided a kind of user equipment.7th aspect there is provided a kind of base station, including：

Processor, for public search space to be mapped into downlink physical resource according to the first mapping ruler, And be mapped in dedicated search space in the downlink physical resource according to the second mapping ruler, wherein, the downlink physical resource for mapping the public search space and the downlink physical resource for mapping the dedicated search space be not overlapping；

Transmitter, for sending the control information of the public search space carrying and the control information of dedicated search space carrying in the downlink physical resource.

In the first with reference to the 7th aspect is possible, above-mentioned public search space is mapped to two time slots of a subframe, two time slots of the dedicated search space reflection a to subframe.

In with reference to the 7th aspect or the first above-mentioned possible second of possibility, above-mentioned processor is specifically for the public search space is mapped on one or more of first antenna port set antenna port；By on one or more antenna ports of the dedicated search space reflection to the second antenna port set, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying.

In with reference to the 7th aspect or the first above-mentioned the third possible possibility, above-mentioned processor is specifically for the public search space is mapped on downlink physical running time-frequency resource according to the first mapping order；The dedicated search space is mapped on downlink physical running time-frequency resource according to the second mapping order.

In possible 4th kind with reference to the third possible, above-mentioned processor is specifically on the downlink physical running time-frequency resource, the N number of information symbol for the control information that the public search space is carried is according to the sequence number Sequential Mapping from small to large of physical time-frequency resource into N number of physical time-frequency resource, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set, and in the downlink physical running time-frequency resource, M information symbol of the control information that the dedicated search space is carried is according to the sequence number Sequential Mapping from big to small of physical time-frequency resource into the individual physical time-frequency resources of M

8th aspect there is provided a kind of user equipment, including：

Receiver, the down channel for receiving carrying public search space and dedicated search space；Processor, the control information of the public search space carrying is obtained on the physical resource according to where the first mapping ruler from the down channel, and the control information of dedicated search space carrying is obtained on the physical resource according to where the second mapping ruler from the down channel, wherein, where the public search space downlink physical resource where downlink physical resource and the dedicated search space is not overlapping.

In the first with reference to the 8th aspect is possible, above-mentioned public search space is mapped to two time slots of a subframe, two time slots of the dedicated search space reflection a to subframe. In with reference to the 8th aspect or the first above-mentioned possible second of possibility, above-mentioned processor from the physical resource where the down channel received on one or more of first antenna port set antenna port specifically for obtaining the control information that the public search space is carried, and the control information of the dedicated search space carrying is obtained from the physical resource where the down channel received on one or more of the second antenna port set antenna port, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying.

In with reference to the 8th aspect or the first above-mentioned the third possible possibility, above-mentioned processor is specifically for according to the control information that public search space carrying is obtained on the downlink physical running time-frequency resource where the first mapping order from the down channel, and according to the control information that the dedicated search space carrying is obtained on the downlink physical running time-frequency resource where the second mapping order from the down channel.

In possible 4th kind with reference to the third possible, the processor is specifically on the downlink physical running time-frequency resource where the down channel, the control information of public search space carrying is obtained from N number of physical time-frequency resource according to the sequence number order from small to large of physical time-frequency resource, wherein, N is positive integer, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set, and on the downlink physical running time-frequency resource where the down channel, the control information of dedicated search space carrying is obtained from M physical time-frequency resource according to the sequence number order from big to small of physical time-frequency resource, wherein, M is positive integer.

The technical scheme that the above embodiment of the present invention is provided, when wherein sending common control information and dedicated control information in base station, the public search space is mapped in downlink physical resource according to the first mapping ruler, and be mapped in the dedicated search space in the downlink physical resource according to the second mapping ruler, mapped according to different mapping rulers, user equipment is received according to corresponding mapping ruler receiving, the probability for occurring to receive mistake on a user device can be reduced, obtain more complete beneficial to user equipment, accurate common control information and dedicated control information.The accompanying drawing used required in brief description of the drawings embodiment or description of the prior art is briefly described, apparently, drawings in the following description are some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings. Fig. 1 is the schematic flow sheet of the sending method embodiment of control channel in the embodiment of the present invention；Fig. 2 is the schematic flow sheet of the method for reseptance embodiment of control channel in the embodiment of the present invention；Fig. 3 is the structural representation of the dispensing device of control channel in the embodiment of the present invention；

Fig. 4 is the structural representation one of resource mapping module in embodiment illustrated in fig. 3；

Fig. 5 is the structural representation two of resource mapping module in embodiment illustrated in fig. 3；

Fig. 6 is the structural representation of the reception device of control channel in the embodiment of the present invention；

Fig. 7 is the structural representation one of acquisition module in embodiment illustrated in fig. 6；

Fig. 8 is the structural representation two of acquisition module in embodiment illustrated in fig. 6；

Fig. 9 is the structural representation of base station in the embodiment of the present invention；

Figure 10 is the structural representation of user equipment in the embodiment of the present invention.

Embodiment

To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

The control information that the control information carried for public search space in the prior art is carried with dedicated search space may be obscured, the defect for causing user equipment not differentiate, the embodiments of the invention provide a kind of sending method of control channel, Fig. 1 is the schematic flow sheet of the sending method embodiment of control channel in the embodiment of the present invention, this method can be realized by base station, as shown in figure 1, including the steps：Step 101, public search space is mapped in downlink physical resource according to the first mapping ruler, and be mapped in dedicated search space in the downlink physical resource according to the second mapping ruler, wherein, the downlink physical resource for mapping the public search space and the downlink physical resource for mapping the dedicated search space be not overlapping；

Step 102, the control information for sending in the downlink physical resource public search space and dedicated search space carrying.

The sending method for the control channel that the above embodiment of the present invention is provided, when wherein sending common control information and dedicated control information in base station, the public search space is mapped in downlink physical resource according to the first mapping ruler, and the dedicated search space is mapped to the descending thing according to the second mapping ruler Manage in resource, mapped according to different mapping rulers, user equipment is received according to corresponding mapping ruler receiving, the probability for occurring to receive mistake on a user device can be reduced, more complete, accurate common control information and dedicated control information are obtained beneficial to user equipment, above-mentioned the first mapping ruler and the second mapping ruler can be pre-configured with onto base station and user equipment.Technical scheme may apply in LTE system, and base station therein can be evolved base station.

In the above embodiment of the present invention, above-mentioned public search space can be mapped to two time slots of a subframe, two time slots of dedicated search space reflection a to subframe.

Specifically, above-mentioned downlink physical resource can be antenna port or physical time-frequency resource, and being mapped to public search space and dedicated search space in downlink physical resource according to different mapping rulers in above-described embodiment can include various ways.

It is public search space and dedicated search space reflection to different antenna ports that a kind of mode, which is, for example, above-mentioned be mapped to public search space in downlink physical resource according to the first mapping ruler includes：The public search space is mapped on one or more of first antenna port set antenna port, i.e., the control information carried public search space, which is gathered in first antenna port on the antenna port included, to be transmitted；

Above-mentioned be mapped in the dedicated search space in downlink physical resource according to the second mapping ruler includes：

By on one or more antenna ports of the dedicated search space reflection to the second antenna port set, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying, i.e., the control information carried dedicated search space is transmitted in the second antenna port set.

The antenna port that the first antenna port set and/or the second antenna port set include includes：One or more of antenna port 107, antenna port 108, antenna port 109 and antenna port 110.For example, the set of first antenna port and/or the second antenna port set can be one below：{ antenna port 107, antenna port 109 }, { antenna port 108, antenna port 1 10 }, { antenna port 107, antenna port 110 }, { antenna port 1 08, antenna port 109 }, { antenna port 1 07, antenna port 108 } and { antenna port 109, antenna port 1 10 }.

The present embodiment supports MIMO technique, wherein the set of first antenna port and the second antenna port set define the antenna port for the control information that can send public search space carrying, with the antenna port for the control information that can send the carrying of dedicated search space, gathering the antenna port included for two can It is identical or entirely different with identical, part, but the antenna port of the control information of transmission public search space carrying and the control information of the transmission dedicated search space carrying is differed simultaneously.

Also a kind of mode is that mapping order of the public search space with dedicated search space on physical time-frequency resource is different, specifically, above-mentioned be mapped to public search space in downlink physical resource according to the first mapping ruler includes：

The public search space is mapped on downlink physical running time-frequency resource according to the first mapping order；Above-mentioned be mapped in the dedicated search space in downlink physical resource according to the second mapping ruler includes：

The dedicated search space is mapped on downlink physical running time-frequency resource according to the second mapping order.Specifically, above-mentioned can be on the downlink physical running time-frequency resource according to the first mapping order mapping public search space, the N number of information symbol for the control information that the public search space is carried is according to the sequence number Sequential Mapping from small to large of physical time-frequency resource into N number of physical time-frequency resource, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set.And according to the second mapping order mapping public search space can be the control information that on the downlink physical running time-frequency resource, the dedicated search space is carried M information symbol according to the sequence number Sequential Mapping from big to small of physical time-frequency resource into the individual physical time-frequency resources of M.

For example, the unit of above-mentioned downlink physical running time-frequency resource can be resource element（Resource E lement, hereinafter referred to as：RE), then N information symbol of the control information that can be carried the public search space is mapped in N number of resource element in sequence, i.e., according to the Sequential Mapping from 1,2 ... N；And

M information symbol of the control information that the dedicated search space is carried is mapped in the M resource elements according to backward, i.e., according to the Sequential Mapping from M, M-1 ... 1.

In another example, the unit of above-mentioned downlink physical running time-frequency resource can be enhancing control channel unit (Enhanced Cont ro l Channe l E l ement, hereinafter referred to as：ECCE), shellfish ' the J control information that can carry the public search space is mapped in the N enhancing control channel units in sequence, i.e. according to the 1st ECCE is first mapped to, re-map to the 1st ECCE ... and be mapped to n-th ECCE Sequential Mapping；And

The control information that the dedicated search space is carried is mapped in the M enhancing control channel unit according to backward, i.e., according to n-th ECCE is mapped to, be mapped to the N-1 ECCE ..., be mapped to the 1st ECCE Sequential Mapping. In another example, the unit of above-mentioned downlink physical running time-frequency resource can be enhancing channel element set

(Enhanced Resource E lement Group, hereinafter referred to as：EREG), shellfish ' the J control information that can carry the public search space is mapped in the N control enhancing channel element set in sequence, i.e. according to being first mapped to the 1st EREG, re-map to the 1st EREG ... and be mapped to n-th EREG Sequential Mapping；And

The control information that the dedicated search space is carried is mapped in the M enhancing channel element set according to backward, i.e., according to n-th EREG is mapped to, be mapped to the N-1 EREG ..., be mapped to the 1st EREG Sequential Mapping.

In three above example, the first mapping order is Sequential Mapping, and the second mapping order maps for backward.Similarly or first mapping order be backward mapping, the second mapping order be Sequential Mapping.

Through the above way, public search space can be made different with the mode of dedicated search space reflection to downlink physical resource, user equipment is when receiving, the control information of public search space carrying or the control information of dedicated search space carrying can be properly received according to different rules, the type that will not occur two kinds of control information is obscured.Above-mentioned mapping ruler can be preset in user equipment and base station, in base station according to above-mentioned mapping ruler by public search space and dedicated search space reflection to downlink physical resource, and be sent to after user equipment, user equipment easily accurately gets the control information that the control information of public search space carrying and dedicated search space are carried according to above-mentioned mapping ruler.

The embodiment of the present invention additionally provides a kind of method of reseptance of control channel.Fig. 2 is the schematic flow sheet of the method for reseptance embodiment of control channel in the embodiment of the present invention, and this method can be realized by UE, as shown in Fig. 1, including the steps：

The down channel of step 201, reception carrying public search space and dedicated search space；The control information of the public search space carrying is obtained in step 202, the physical resource according to where the first mapping ruler from the down channel, and the control information of dedicated search space carrying is obtained on the physical resource according to where the second mapping ruler from the down channel, wherein, where the public search space downlink physical resource where downlink physical resource and the dedicated search space is not overlapping.

The method of reseptance for the control channel that the above embodiment of the present invention is provided, wherein after the down channel in carrying public search space and dedicated search space is received, because public search space and dedicated search space are respectively according on different mapping ruler to downlink physical resource, therefore, user equipment can be parsed according to corresponding mapping ruler, the probability for occurring to receive mistake on a user device can be reduced, the control information of more complete, accurate public search space carrying is obtained beneficial to user equipment and dedicated search space is held The control information of load, above-mentioned the first mapping ruler and the second mapping ruler can be pre-configured with onto base station and user equipment.

In the above embodiment of the present invention, the public search space may map to two time slots of a subframe, and the dedicated search space may map to two time slots of a subframe.

Further, in the above embodiment of the present invention, mapping ruler therein can include various ways, in one way in which under, obtaining the common control information on the above-mentioned physical resource according to where the first mapping ruler from the down channel includes：

The control information of the public search space carrying is obtained from the physical resource where the down channel received on one or more of first antenna port set antenna port；

The control information of the dedicated search space carrying is obtained from the physical resource where the down channel received on one or more of the second antenna port set antenna port, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying.

Under another way, the control information of the public search space carrying is obtained on the above-mentioned physical resource according to where the first mapping ruler from the down channel to be included：

According to the control information that the carrying of dedicated search space is obtained on the downlink physical running time-frequency resource where the second mapping order from the down channel.

Specifically, the control information of public search space carrying is obtained on the above-mentioned downlink physical running time-frequency resource according to where the first mapping order from the down channel to be included：

Obtained on the downlink physical running time-frequency resource according to where the second mapping order from the down channel The control information of dedicated search space carrying includes：

For example, when the unit of above-mentioned downlink physical running time-frequency resource is resource element, the above-mentioned control information for obtaining public search space carrying from the downlink physical running time-frequency resource where down channel according to the first mapping order includes：

The control information of public search space carrying is obtained from N number of resource element in sequence；The control information that special control search space carrying is obtained from the downlink physical running time-frequency resource where down channel according to the second mapping order includes：

The control information of dedicated search space carrying is obtained from M resource element according to backward.

Or, the unit of above-mentioned downlink physical running time-frequency resource is enhancing control channel unit, the control information for obtaining public search space carrying from the downlink physical running time-frequency resource where down channel according to the first mapping order includes：

The control information of public search space carrying is obtained from N enhancing control channel unit in sequence；

The control information for obtaining the carrying of dedicated search space from the downlink physical running time-frequency resource where down channel according to the second mapping order includes：

The control information of dedicated search space carrying is obtained from M enhancing control channel unit according to backward.

Or, the unit of above-mentioned downlink physical running time-frequency resource is enhancing channel element set, the control information for obtaining public search space carrying from the downlink physical running time-frequency resource where down channel according to the first mapping order includes：

The control information of public search space carrying is obtained from N enhancing channel element set in sequence；

The control information of dedicated search space carrying is obtained from M enhancing channel element set according to backward.The specific implementation of the embodiment may refer to the corresponding embodiment of sending method.

It is corresponding with the embodiment shown in Fig. 1, present invention also offers a kind of dispensing device of control channel, The device can be base station a part or base station itself.Fig. 3 is the structural representation of the dispensing device of control channel in the embodiment of the present invention, as shown in figure 3, the device includes resource mapping module

11 and sending module 12, wherein resource mapping module 11 is used to the public search space being mapped to downlink physical resource according to the first mapping ruler, and be mapped in the dedicated search space in the downlink physical resource according to the second mapping ruler, wherein, the downlink physical resource for mapping the public search space and the downlink physical resource for mapping the dedicated search space be not overlapping；Sending module 12 is used to send the control information of the public search space carrying and the control information of dedicated search space carrying in the downlink physical resource.

The dispensing device for the control channel that the above embodiment of the present invention is provided, when the control information that the control information of public search space carrying and dedicated search space are carried wherein is sent in base station, the public search space is mapped in downlink physical resource according to the first mapping ruler, and be mapped in the dedicated search space in downlink physical resource according to the second mapping ruler, mapped according to different mapping rulers, user equipment is parsed according to corresponding mapping ruler receiving, the probability for occurring to receive mistake on a user device can be reduced, obtain more complete beneficial to user equipment, the control information of accurate public search space carrying and the control information of dedicated search space carrying, above-mentioned the first mapping ruler and the second mapping ruler can be pre-configured with onto base station and user equipment.

In the above embodiment of the present invention, above-mentioned resource mapping module is specifically for the public search space to be mapped to two time slots of a subframe, two time slots of the dedicated search space reflection a to subframe.

As shown in Figure 4, in the above embodiment of the present invention, resource mapping module 11 therein includes：First resource map unit 111, for the public search space to be mapped into one or more of first antenna port set antenna port；

Secondary resource map unit 112, for by one or more antenna ports of the dedicated search space reflection to the second antenna port set, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying.

Either, as shown in Figure 5, the resource mapping module 11 in the above embodiment of the present invention includes：Information resources map unit 113, for the public search space to be mapped into downlink physical running time-frequency resource according to the first mapping order；

4th resource mapping unit 114, for the dedicated search space to be mapped into downlink physical running time-frequency resource according to the second mapping order. In the above embodiment of the present invention, the information resources map unit therein is specifically on the downlink physical running time-frequency resource, the N number of information symbol for the control information that the public search space is carried is according to the sequence number Sequential Mapping from small to large of physical time-frequency resource into N number of physical time-frequency resource, and the unit of the physical time-frequency resource is one below：M information symbol of the control information that resource element, enhancing control channel unit and enhancing carry the dedicated search space is according to the sequence number Sequential Mapping from big to small of physical time-frequency resource into the individual resource elements of M.

Present invention also offers a kind of base station, the base station includes the dispensing device for the control channel that above-described embodiment is provided.

Corresponding with the embodiment of the method shown in Fig. 2, the embodiment of the present invention additionally provides a kind of reception device of control channel, the device can be UE a part or UE in itself.As shown in Figure 6, the device includes receiving module 21 and acquisition module 22, and wherein receiving module 21 is used for the down channel of the control information for the control information and dedicated search space carrying for receiving carrying public search space carrying；Acquisition module 22 is used to obtain the control information that the public search space is carried on the physical resource according to where the first mapping ruler from the down channel, and the control information of dedicated search space carrying is obtained on the physical resource according to where the second mapping ruler from the down channel.

Specifically, public search space described above may map to two time slots of a subframe, the dedicated search space can also map two time slots of a subframe.

Further, as shown in fig. 7, above-mentioned acquisition module 22 can include：

First acquisition unit 221, the control information for obtaining the public search space carrying from the physical resource where the down channel received on one or more of first antenna port set antenna port；

Second acquisition unit 222, control information for obtaining the dedicated search space carrying from the physical resource where the down channel received on one or more of the second antenna port set antenna port, wherein, the control information of the public search space carrying is sent different with the antenna port for the control information for sending the dedicated search space carrying.

Either, as shown in figure 8, above-mentioned acquisition module 22 includes：

3rd acquiring unit 223, for according to the control information that public search space carrying is obtained on the downlink physical running time-frequency resource where the first mapping order from the down channel；

4th acquiring unit 224, for according to descending where the second mapping order from the down channel The control information of dedicated search space carrying is obtained on physical time-frequency resource.

In the above embodiment of the present invention, 3rd acquiring unit 223 is specifically on the downlink physical running time-frequency resource where the down channel, the control information of public search space carrying is obtained from N number of physical time-frequency resource according to the sequence number order from small to large of physical time-frequency resource, wherein, N is positive integer, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set, 4th acquiring unit 224 is specifically on the downlink physical running time-frequency resource where the down channel, the control information of dedicated search space carrying is obtained from M physical time-frequency resource according to the sequence number order from big to small of physical time-frequency resource, wherein, M is positive integer.

The embodiment of the present invention has been also provided to a kind of user equipment, includes the reception device of the control channel of above-described embodiment offer.

The embodiment of the present invention also provides a kind of base station, Fig. 9 is the structural representation of base station in the embodiment of the present invention, as shown in Figure 9, the base station includes processor 31 and transmitter 32, wherein processor 31 is used to public search space being mapped to downlink physical resource according to the first mapping ruler, and be mapped in dedicated search space in the downlink physical resource according to the second mapping ruler, wherein, the downlink physical resource for mapping the public search space and the downlink physical resource for mapping the dedicated search space be not overlapping；Transmitter 32 is used to send the control information of the public search space carrying and the control information of dedicated search space carrying in the downlink physical resource.

In the above embodiment of the present invention, public search space may map to two time slots of a subframe, and dedicated search space may map to two time slots of a subframe.

In addition, above-mentioned processor 31 is specifically for the public search space is mapped on one or more of first antenna port set antenna port；By on one or more antenna ports of the dedicated search space reflection to the second antenna port set, wherein send the antenna port of the control information of the public search space carrying and send the control information that the dedicated search space is carried antenna port it is different.

Either, above-mentioned processor 31 is specifically for the public search space is mapped on downlink physical running time-frequency resource according to the first mapping order；The dedicated search space is mapped on downlink physical running time-frequency resource according to the second mapping order.

In the above embodiment of the present invention, processor 31 therein is specifically on the downlink physical running time-frequency resource, the N number of information symbol for the control information that the public search space is carried is according to the sequence number Sequential Mapping from small to large of physical time-frequency resource into N number of physical time-frequency resource, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set, And in the downlink physical running time-frequency resource, M information symbol of the control information that the dedicated search space is carried is according to the sequence number Sequential Mapping from big to small of physical time-frequency resource into the individual physical time-frequency resources of M.

The specific explanations of the above embodiment of the present invention may refer to the embodiment of the method shown in Fig. 1.

Present invention also offers a kind of user equipment, Figure 10 is the structural representation of user equipment in the embodiment of the present invention, as shown in Fig. 10, the user equipment includes receiver 41 and processor 42, and wherein receiver 41 is used to receive carrying public search space and the down channel in dedicated search space；Processor 42 is used on the physical resource according to where the first mapping ruler from the down channel control information for obtaining the public search space carrying, and the control information of dedicated search space carrying is obtained on the physical resource according to where the second mapping ruler from the down channel, wherein, where the public search space downlink physical resource where downlink physical resource and the dedicated search space is not overlapping.

In the above embodiment of the present invention, wherein processor 42 from the physical resource where the down channel received on one or more of first antenna port set antenna port specifically for obtaining the control information that the public search space is carried, and the control information of the dedicated search space carrying is obtained from the physical resource where the down channel received on one or more of the second antenna port set antenna port, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying.Either, processor 42 is specifically for according to the control information that public search space carrying is obtained on the downlink physical running time-frequency resource where the first mapping order from the down channel, and according to the control information that the carrying of dedicated search space is obtained on the downlink physical running time-frequency resource where the second mapping order from the down channel.

Wherein, above-mentioned processor is specifically on the downlink physical running time-frequency resource where the down channel, the control information of public search space carrying is obtained from N number of physical time-frequency resource according to the sequence number order from small to large of physical time-frequency resource, wherein, N is positive integer, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set, and on the downlink physical running time-frequency resource where the down channel, the control information of dedicated search space carrying is obtained from M physical time-frequency resource according to the sequence number order from big to small of physical time-frequency resource, wherein, M is positive integer.

One of ordinary skill in the art will appreciate that：Realize all or part of step of above method embodiment It can be completed by the related hardware of programmed instruction, foregoing program can be stored in a computer read/write memory medium, the program upon execution, performs the step of including above method embodiment；And foregoing storage medium includes：R0M, RAM, magnetic disc or CD etc. are various can be with the medium of store program codes.

Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；Although the present invention is described in detail with reference to foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part or all technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the scope of various embodiments of the present invention technical scheme.

Claims

Claims

1st, a kind of sending method of control channel, it is characterised in that including：

Public search space is mapped in downlink physical resource according to the first mapping ruler, and be mapped in dedicated search space in the downlink physical resource according to the second mapping ruler, wherein, the downlink physical resource for mapping the public search space and the downlink physical resource for mapping the dedicated search space be not overlapping；The control information of the public search space carrying and the control information of dedicated search space carrying are sent in the downlink physical resource.

2nd, the sending method of control channel according to claim 1, it is characterised in that the public search space is mapped to two time slots of a subframe, two time slots of the dedicated search space reflection a to subframe.

3rd, the sending method of control channel according to claim 1 or 2, it is characterised in that described be mapped to public search space in downlink physical resource according to the first mapping ruler includes：

The public search space is mapped on one or more of first antenna port set antenna port；

Described be mapped in the dedicated search space in downlink physical resource according to the second mapping ruler includes：

By on one or more antenna ports of the dedicated search space reflection to the second antenna port set, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying.

4th, the sending method of control channel according to claim 1 or 2, it is characterised in that described be mapped to public search space in downlink physical resource according to the first mapping ruler includes：

The public search space is mapped on downlink physical running time-frequency resource according to the first mapping order；Described be mapped in the dedicated search space in downlink physical resource according to the second mapping ruler includes：

The dedicated search space is mapped on downlink physical running time-frequency resource according to the second mapping order.

5th, the sending method of control channel according to claim 4, it is characterised in that described be mapped to public search space on downlink physical running time-frequency resource according to the first mapping order includes：

On the downlink physical running time-frequency resource, N information symbol of the control information that the public search space is carried is according to the sequence number Sequential Mapping from small to large of physical time-frequency resource into N number of physical time-frequency resource, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel Unit and enhancing channel element set；

Described be mapped in dedicated search space on downlink physical running time-frequency resource according to the first mapping order includes：

On the downlink physical running time-frequency resource, M information symbol of the control information that the dedicated search space is carried is according to the sequence number Sequential Mapping from big to small of physical time-frequency resource into the individual physical time-frequency resources of M.

6th, a kind of method of reseptance of control channel, it is characterised in that including：

Receive carrying public search space and the down channel in dedicated search space；

The control information of the public search space carrying is obtained on physical resource according to where the first mapping ruler from the down channel, and the control information of dedicated search space carrying is obtained on the physical resource according to where the second mapping ruler from the down channel, wherein, where the public search space downlink physical resource where downlink physical resource and the dedicated search space is not overlapping.

7th, the method for reseptance of control channel according to claim 6, it is characterised in that the public search space takes two time slots of a subframe, two time slots of one subframe of dedicated search space hold.

8th, the method for reseptance of the control channel according to claim 6 or 7, it is characterised in that the control information of the public search space carrying is obtained on the physical resource according to where the first mapping ruler from the down channel to be included：

The control information of the public search space carrying is obtained from the physical resource where the down channel received on one or more of first antenna port set antenna port；

The control information for obtaining the carrying of dedicated search space from the physical resource where down channel according to the second mapping ruler includes：

The control information of the dedicated search space carrying is obtained from the physical resource where the down channel received on one or more of the second antenna port set antenna port, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying.

9th, the method for reseptance of the control channel according to claim 6 or 7, it is characterised in that the control information of the public search space carrying is obtained on the physical resource according to where the first mapping ruler from the down channel to be included：

Described in being obtained on the downlink physical running time-frequency resource where the first mapping order from the down channel The control information of public search space carrying；

The control information of dedicated search space carrying is obtained on the physical resource according to where the second mapping ruler from the down channel to be included：

According to the control information that the dedicated search space carrying is obtained on the downlink physical running time-frequency resource where the second mapping order from the down channel.

10th, the method for reseptance of control channel according to claim 9, it is characterised in that the control information of public search space carrying is obtained on the downlink physical running time-frequency resource according to where the first mapping order from the down channel to be included：

On the downlink physical running time-frequency resource where the down channel, the control information of public search space carrying is obtained from N number of physical time-frequency resource according to the sequence number order from small to large of physical time-frequency resource, wherein, N is positive integer, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set；

The control information of dedicated search space carrying is obtained on the downlink physical running time-frequency resource according to where the second mapping order from the down channel to be included：

On the downlink physical running time-frequency resource where the down channel, the control information of dedicated search space carrying is obtained from M physical time-frequency resource according to the sequence number order from big to small of physical time-frequency resource, wherein, M is positive integer.

11st, a kind of dispensing device of control channel, it is characterised in that including：

Resource mapping module, for public search space to be mapped into downlink physical resource according to the first mapping ruler, and be mapped in dedicated search space in the downlink physical resource according to the second mapping ruler, wherein, the downlink physical resource for mapping the public search space and the downlink physical resource for mapping the dedicated search space be not overlapping；

Sending module, for sending the control information of the public search space carrying and the control information of dedicated search space carrying in the downlink physical resource.

12nd, the dispensing device of control channel according to claim 11, it is characterized in that, the resource mapping module is specifically for public search space to be mapped to two time slots of a subframe, by two time slots of the dedicated search space reflection a to subframe.

13, the dispensing device of the control channel according to claim 11 or 12, it is characterised in that the resource mapping module includes：

First resource map unit, for the public search space to be mapped into the set of first antenna port One or more of on antenna port；

Secondary resource map unit, for by one or more antenna ports of the dedicated search space reflection to the second antenna port set, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying.

14th, the dispensing device of the control channel according to claim 11 or 12, it is characterised in that the resource mapping module includes：

Information resources map unit, for the public search space to be mapped into downlink physical running time-frequency resource according to the first mapping order；

4th resource mapping unit, for the dedicated search space to be mapped into downlink physical running time-frequency resource according to the first mapping order.

15th, the dispensing device of control channel according to claim 14, it is characterized in that, N number of information symbol of the control information of the carrying is according to the sequence number Sequential Mapping from small to large of physical time-frequency resource into N number of physical time-frequency resource, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set；4th resource mapping unit is specifically on the downlink physical running time-frequency resource, and M information symbol of the control information that the dedicated search space is carried is according to the sequence number Sequential Mapping from big to small of physical time-frequency resource into the individual resource elements of M.

16th, a kind of base station, it is characterised in that include the dispensing device of any described control channels of claim 11-15.

17th, a kind of reception device of control channel, it is characterised in that including：

Receiving module, the down channel for receiving carrying public search space and dedicated search space；Acquisition module, the control information of public search space carrying is obtained on the physical resource according to where the first mapping ruler from the down channel, and obtains according to second mapping ruler control information that dedicated search space is carried from the physical resource where the down channel.

18th, the reception device of control channel according to claim 17, it is characterised in that the public search space is mapped to two time slots of a subframe, two time slots of one subframe of dedicated search space reflection.

19th, the reception device of the control channel according to claim 17 or 18, it is characterised in that the acquisition module includes： First acquisition unit, the control information for obtaining the public search space carrying from the physical resource where the down channel received on one or more of first antenna port set antenna port；Second acquisition unit, control information for obtaining the dedicated search space carrying from the physical resource where the down channel received on one or more of the second antenna port set antenna port, wherein, the control information of the public search space carrying is sent different with the antenna port for the control information for sending the dedicated search space carrying.

20th, the reception device of the control channel according to claim 17 or 18, it is characterised in that the acquisition module includes：

3rd acquiring unit, for according to the control information that the public search space carrying is obtained on the downlink physical running time-frequency resource where the first mapping order from the down channel；

4th acquiring unit, for according to the control information that the dedicated search space carrying is obtained on the downlink physical running time-frequency resource where the second mapping order from the down channel.

21st, the reception device of control channel according to claim 20, it is characterized in that, 3rd acquiring unit is specifically on the downlink physical running time-frequency resource where the down channel, the control information of public search space carrying is obtained from N number of physical time-frequency resource according to the sequence number order from small to large of physical time-frequency resource, wherein, N is positive integer, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set, 4th acquiring unit is specifically on the downlink physical running time-frequency resource where the down channel, the control information of dedicated search space carrying is obtained from M physical time-frequency resource according to the sequence number order from big to small of physical time-frequency resource, wherein, M is positive integer.

22nd, a kind of user equipment, it is characterised in that include the reception device of any described control channels of claim 17-21.

23rd, a kind of base station, it is characterised in that including：

Processor, for public search space to be mapped into downlink physical resource according to the first mapping ruler, and be mapped in dedicated search space in the downlink physical resource according to the second mapping ruler, wherein, the downlink physical resource for mapping the public search space and the downlink physical resource for mapping the dedicated search space be not overlapping；

Transmitter, for sending the control information of the public search space carrying and the control information of dedicated search space carrying in the downlink physical resource.

24th, base station according to claim 23, it is characterised in that the public search space mapping To two time slots of a subframe, two time slots of the dedicated search space reflection a to subframe.

25th, the base station according to claim 23 or 24, it is characterised in that the processor is specifically for the public search space is mapped on one or more of first antenna port set antenna port；By on one or more antenna ports of the dedicated search space reflection to the second antenna port set, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying.

26th, the base station according to claim 23 or 24, it is characterised in that the processor is specifically for the public search space is mapped on downlink physical running time-frequency resource according to the first mapping order；The dedicated search space is mapped on downlink physical running time-frequency resource according to the second mapping order.

27th, base station according to claim 26, it is characterized in that, the processor is specifically on the downlink physical running time-frequency resource, the N number of information symbol for the control information that the public search space is carried is according to the sequence number Sequential Mapping from small to large of physical time-frequency resource into N number of physical time-frequency resource, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set, and in the downlink physical running time-frequency resource, M information symbol of the control information that the dedicated search space is carried is according to the sequence number Sequential Mapping from big to small of physical time-frequency resource into the individual physical time-frequency resources of M.

28th, a kind of user equipment, it is characterised in that including：

Receiver, the down channel for receiving carrying public search space and dedicated search space；Processor, the control information of the public search space carrying is obtained on the physical resource according to where the first mapping ruler from the down channel, and the control information of dedicated search space carrying is obtained on the physical resource according to where the second mapping ruler from the down channel, wherein, where the public search space downlink physical resource where downlink physical resource and the dedicated search space is not overlapping.

29th, user equipment according to claim 28, it is characterised in that the public search space is mapped to two time slots of a subframe, two time slots of the dedicated search space reflection a to subframe.

30, user equipment according to claim 28 or 29, it is characterized in that, the processor from the physical resource where the down channel received on one or more of first antenna port set antenna port specifically for obtaining the control information that the public search space is carried, and the control information of the dedicated search space carrying is obtained from the physical resource where the down channel received on one or more of the second antenna port set antenna port, wherein, the antenna port for sending the control information of the public search space carrying is different with the antenna port for the control information for sending the dedicated search space carrying. 31st, the user equipment according to claim 28 or 29, it is characterized in that, the processor is specifically for according to the control information that public search space carrying is obtained on the downlink physical running time-frequency resource where the first mapping order from the down channel, and according to the control information that the dedicated search space carrying is obtained on the downlink physical running time-frequency resource where the second mapping order from the down channel.

32nd, user equipment according to claim 31, it is characterized in that, the processor is specifically on the downlink physical running time-frequency resource where the down channel, the control information of public search space carrying is obtained from N number of physical time-frequency resource according to the sequence number order from small to large of physical time-frequency resource, wherein, N is positive integer, and the unit of the physical time-frequency resource is one below：Resource element, enhancing control channel unit and enhancing channel element set, and on the downlink physical running time-frequency resource where the down channel, the control information of dedicated search space carrying is obtained from M physical time-frequency resource according to the sequence number order from big to small of physical time-frequency resource, wherein, M is positive integer.