CN108270514A

CN108270514A - The determining method and device of PDSCH resources, terminal, base station

Info

Publication number: CN108270514A
Application number: CN201710002237.7A
Authority: CN
Inventors: 张晨晨; 郝鹏; 毕峰
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2017-01-03
Filing date: 2017-01-03
Publication date: 2018-07-10
Also published as: WO2018126777A1

Abstract

The present invention provides a kind of determining method and device of PDSCH resources, terminal, base stations；Wherein, this method includes：It obtains and is used to indicate in physical downlink control channel PDCCH domain for the first instruction information of the PDCCH resource of PDSCH transmission；It is determined in first time unit in PDCCH domains according to instruction information, for the PDCCH resource of PDSCH transmission；By the present invention, solve the problems, such as to indicate the PDSCH resources on PDCCH symbols without normal direction terminal in the relevant technologies.

Description

The determining method and device of PDSCH resources, terminal, base station

Technical field

The present invention relates to wireless communication field, in particular to a kind of determining method and device of PDSCH resources, end End, base station.

Background technology

With increasingly increase of the development and user of wireless communication technique to communication requirement, in order to meet higher, faster and Newer communication needs, and the 5th third-generation mobile communication (5th Generation, abbreviation 5G) technology has become future network development Trend.

It, can area for downlink transfer in traditional long term evolution (Long-Term Evolution, abbreviation LTE) technology Divide independent down control channel (Physical Downlink Control CHannel, abbreviation PDCCH) domain and downlink business Channel (Physical Downlink Shared Channel, abbreviation PDSCH) domain, down control channel domain can account on frequency domain With whole system bandwidth, in time domain, Physical Control Format Indicator Channel (Physical Control Format can be passed through Indicator Channel, abbreviation PCFICH) come preceding several symbols that dynamic instruction occupies subframe, specific bearing downlink control During information (Downlink Control Information, abbreviation DCI), there are many control channel unit (Control Channel Element, abbreviation CCE) aggregation level is under each CCE aggregation level it can be selected that have multiple available candidates (candidate), each candidate contains the CCE of corresponding aggregation level number.This time division multiplexing (Time Division Multiplex, referred to as TDM) mode channel architecture design, for 5G systems, it may be possible to it is inadequate, In order to realize higher spectrum efficiency, more flexible resource multiplex mode and smaller processing delay, need to consider TDM+ frequencies Point multiplexing (Frequency Division Multiplexing, abbreviation FDM) with reference to mode realize PDCCH's and PDSCH Resource multiplex.

For TDM modes, the mode of relatively mainstream is in the previous or multiple orthogonal of scheduling time unit at present PDCCH is transmitted on frequency division multiplexing (Orthogonal Frequency Division Multiplexing, abbreviation OFDM) symbol, Downlink or uplink business datum can be transmitted in remaining OFDM symbol, i.e. PDSCH or ascending physical signal share channel (Physical Uplink shared channel, abbreviation PUSCH), or both have concurrently.

If simple TDM modes, then it transmits in the OFDM symbol of PDCCH, it, also can only be unrestrained even if there is resources left Expense is fallen, and in order to avoid this waste, it can be these surplus resources for PDSCH transmission, i.e., in the OFDM symbols of transmission PDCCH PDCCH and PDSCH are multiplexed on number in a manner of FDM.For the multiplex mode of this TDM+FDM, in downlink DCI in traditional LTE Resource block distribution (Resource block assignment) domain in format can indicate certain user on non-PDCCH symbols The frequency domain resource that PDSCH is occupied, but how to indicate to the user that PDSCH resource of the multiplexing on PDCCH symbols, needs solve Problem.

For above-mentioned technical problem, currently no effective solution has been proposed.

Invention content

An embodiment of the present invention provides a kind of determining method and device of PDSCH resources, terminal, base station, at least to solve It is indicated in the relevant technologies without normal direction terminal with the PDSCH resources on PDCCH symbols the problem of.

According to one embodiment of present invention, a kind of determining method of Physical Downlink Shared Channel PDSCH resources is provided, Including：It obtains and is used to indicate in physical downlink control channel PDCCH domain for the first instruction of the PDCCH resource of PDSCH transmission Information；It is determined in first time unit in PDCCH domains according to instruction information, for the PDCCH resource of PDSCH transmission.

Optionally, first time unit includes：One or more scheduling time unit, wherein, in first time unit It is discrete or continuous between multiple scheduling time units in the case of including multiple scheduling time units.

Optionally, it obtains and is used to indicate in PDCCH domains for the first instruction packet of the PDCCH resource of PDSCH transmission It includes：Receive Downlink Control Information DCI；Wherein, DCI includes：It is used to indicate in PDCCH domains and is provided for the PDCCH of PDSCH transmission The instructions field in source.

Optionally, instructions field is used to indicate the candidate that PDSCH transmission is used in the specified Candidate Set in PDCCH domains；Wherein, refer to It is for the candidate collection of aggregation level or the subset of candidate collection to determine Candidate Set, and the candidate in specified Candidate Set is not having PDCCH needs to be used for PDSCH transmission during transmission.

Optionally, candidate collection is all search spaces of corresponding aggregation level or the subset of all search spaces.

Optionally, aggregation level includes at least one of：The set of all aggregation levels；The collection of partially polymerized rank It closes；Specified aggregation level.

Optionally, candidate collection is at least one of：Whole search that corresponding entire PDCCH occupies running time-frequency resource are empty Between；PDCCH occupies the part searches space of running time-frequency resource on corresponding specified beams direction；The corresponding portion for specifying search for space type Divide search space；Wherein, the space type that specifies search for includes at least one of：Public search space, dedicated search are empty Between, group searching space, wherein, the group searching space is the search space that one group of terminal shares DCI.

Optionally, the bit number that instructions field includes is identical with the candidate number included in specified Candidate Set.

Optionally, when the bit in instructions field is the first designated value, represent corresponding with bit in specified Candidate Set Candidate be used for PDSCH transmission；When bit is the second designated value, candidate corresponding with bit in specified Candidate Set is represented It is not used for PDSCH transmission.

Optionally, the corresponding aggregation level of Candidate Set is specified to be determined by least one of mode：Wireless heterogeneous networks RRC signaling is configured；System information block SIB or system information SI are semi-statically configured；Specified protocol provides；According to current scheduled time Whether base station has sent the testing result of PDCCH to terminal and has determined in unit；Wherein, in testing result to have been sent to terminal In the case of PDCCH, the aggregation level for specifying Candidate Set is identical with aggregation level used by base station transmission PDCCH, is detecting As a result it is in the case of not sending PDCCH to terminal, the aggregation level of specified Candidate Set is the aggregation level of acquiescence.

Optionally, it obtains and is used to indicate in PDCCH domains for the first instruction packet of the PDCCH resource of PDSCH transmission It includes：Whether detection base station carries DCI or effective control channel in predetermined search space, obtains testing result；Wherein, exist In the case that testing result carries DCI or effective control channel in predetermined search space for instruction, show that PDCCH domains are used for PDCCH is transmitted and the corresponding frequency domain resource in predetermined search space is PDCCH resource.

Optionally, predetermined search space is the search space of one or more corresponding control channel basic resource unit.

Optionally, search space includes at least one of：Public search space, group searching space；Wherein, group searching is empty Between for one group of terminal share the search space of DCI.

Optionally, an OFDM symbol or an OFDM symbol group of the predetermined search space on time-domain dimension, corresponding one Kind beam direction.

Optionally, it is determined according to the instruction information in first time unit in the PDCCH domains, for described After the PDCCH resource of PDSCH transmission, method further includes：Judge predetermined search spatially whether the PDSCH of transmission terminal.

Optionally, judge spatially whether the PDSCH of transmission terminal includes in predetermined search：Other than predetermined search space Other candidate or other search spaces on blind Detecting PDCCH；Detecting that base station has sent DCI, and DCI in itself to terminal In comprising in the case of resource distribution instruction domain, according to the resource allocation of predetermined search space propagation PDSCH rule, by resource point Frequency domain resource frequency domain resource corresponding with predetermined search space with instructions field instruction takes intersection, obtains the first frequency domain resource；Its In, resource allocation rule includes：According to the frequency domain resource allocation result in PDSCH domains by the corresponding frequency domain resource in predetermined search space Distribute to corresponding terminal；Determine that base station transmits end in predetermined search space on the running time-frequency resource of corresponding first frequency domain resource The PDSCH at end.

According to one embodiment of present invention, a kind of determining method of Physical Downlink Shared Channel PDSCH resources is provided, Including：It obtains and is used to indicate in physical downlink control channel PDCCH domain for the first instruction of the PDCCH resource of PDSCH transmission Information；The first instruction information is sent to terminal；Wherein, the first instruction information determines PDCCH in first time unit for terminal In domain, for the PDCCH resource of PDSCH transmission.

Optionally, the first instruction information includes：Downlink Control Information DCI；Wherein, DCI includes：It is used to indicate PDCCH For the instructions field of the PDCCH resource of PDSCH transmission in domain.

Optionally, the first instruction information includes：Whether base station carries DCI or effectively control in predetermined search space Channel；Wherein, in the case of DCI or effective control channel are carried in predetermined search space, show that PDCCH domains are used for PDCCH is transmitted and the corresponding frequency domain resource in predetermined search space is PDCCH resource.

Optionally, it is provided in physical downlink control channel PDCCH domain is configured to indicate that for the PDCCH of PDSCH transmission Before the first instruction information in source, method further includes：According to resource allocation rule by the corresponding frequency domain resource in predetermined search space Distribute to corresponding terminal；Wherein, resource allocation rule includes：It is searched according to the frequency domain resource allocation result in PDSCH domains by predetermined The corresponding frequency domain resource in rope space distributes to corresponding terminal.

Optionally, in the case where PDSCH domains are in a manner of time division multiplexing tdm there are a variety of frequency domain resource allocation results, side Method further includes：A kind of frequency domain resource allocation result is selected from a variety of frequency domain resource allocation results, is according to resource allocation rule Each OFDM symbol or each OFDM symbol group determine PDSCH resources.

According to one embodiment of present invention, a kind of determining device of Physical Downlink Shared Channel PDSCH resources is provided, Including：Acquisition module provides for obtaining to be used to indicate in physical downlink control channel PDCCH domain for the PDCCH of PDSCH transmission The first instruction information in source；Determining module, for determining in first time unit in PDCCH domains, to be used for according to instruction information The PDCCH resource of PDSCH transmission.

Optionally, acquisition module is additionally operable to receive Downlink Control Information DCI；Wherein, DCI includes：It is used to indicate For the instructions field of the PDCCH resource of PDSCH transmission in PDCCH domains.

Optionally, acquisition module, is additionally operable to whether detection base station carries DCI or effectively control in predetermined search space Channel processed, obtains testing result；Wherein, it is that DCI or effectively control letter are carried in predetermined search space in testing result In the case of road, show that PDCCH domains are transmitted for PDCCH and the corresponding frequency domain resource in predetermined search space is PDCCH resource.

Optionally, device further includes：Judgment module, for judge predetermined search spatially whether transmission terminal PDSCH。

Optionally, judgment module includes：Blind Detecting unit, for other than predetermined search space other it is candidate or other Blind Detecting PDCCH on search space；Processing unit, for detecting that base station has sent DCI, and in DCI in itself to terminal In the case of comprising resource distribution instruction domain, according to the resource allocation of predetermined search space propagation PDSCH rule, by resource allocation The frequency domain resource frequency domain resource corresponding with predetermined search space of instructions field instruction takes intersection, obtains the first frequency domain resource；Wherein, Resource allocation rule includes：The corresponding frequency domain resource in predetermined search space is divided according to the frequency domain resource allocation result in PDSCH domains The corresponding terminal of dispensing；Determination unit, for determining the time-frequency money of base station corresponding first frequency domain resource in predetermined search space The PDSCH of terminal is transmitted on source.

According to one embodiment of present invention, a kind of determining device of Physical Downlink Shared Channel PDSCH resources is provided, Including：Acquisition module provides for obtaining to be used to indicate in physical downlink control channel PDCCH domain for the PDCCH of PDSCH transmission The first instruction information in source；Sending module, for sending the first instruction information to terminal；Wherein, the first instruction information is for eventually End is determined in first time unit in PDCCH domains, for the PDCCH resource of PDSCH transmission.

Optionally, the first instruction information includes：Whether base station carries DCI or effectively control letter in predetermined search space Road；Wherein, in the case of DCI or effective control channel are carried in predetermined search space, show that PDCCH domains are used for PDCCH is transmitted and the corresponding frequency domain resource in predetermined search space is PDCCH resource.

Optionally, device further includes：First distribution module, for being corresponded to predetermined search space according to resource allocation rule Frequency domain resource distribute to corresponding terminal；Wherein, resource allocation rule includes：It is distributed and tied according to the frequency domain resource in PDSCH domains The corresponding frequency domain resource in predetermined search space is distributed to corresponding terminal by fruit.

Optionally, device further includes：Second distribution module, for there are a variety of in a manner of time division multiplexing tdm in PDSCH domains In the case of frequency domain resource allocation result, a kind of frequency domain resource allocation result, root are selected from a variety of frequency domain resource allocation results According to resource allocation rule PDSCH resources are determined for each OFDM symbol or each OFDM symbol group.

According to one embodiment of present invention, a kind of terminal is provided, including：Radio-frequency module is used to indicate for obtaining For the first instruction information of the PDCCH resource of PDSCH transmission in physical downlink control channel PDCCH domain；Processor, for root It is determined in first time unit in PDCCH domains according to instruction information, for the PDCCH resource of PDSCH transmission.

Optionally, radio-frequency module is additionally operable to receive Downlink Control Information DCI；Wherein, DCI includes：It is used to indicate For the instructions field of the PDCCH resource of PDSCH transmission in PDCCH domains.

Optionally, radio-frequency module, is additionally operable to whether detection base station carries DCI or effectively control in predetermined search space Channel processed, obtains testing result；Wherein, it is that DCI or effectively control letter are carried in predetermined search space in testing result In the case of road, show that PDCCH domains are transmitted for PDCCH and the corresponding frequency domain resource in predetermined search space is PDCCH resource.

Optionally, processor is additionally operable to the blind Detecting on other candidate or other search spaces other than predetermined search space PDCCH；In base station is detected to terminal and has sent in itself DCI and DCI comprising resource distribution instruction domain in the case of, root According to the resource allocation rule of predetermined search space propagation PDSCH, the frequency domain resource that resource distribution instruction domain indicates is searched with predetermined The corresponding frequency domain resource in rope space takes intersection, obtains the first frequency domain resource；Wherein, resource allocation rule includes：According to PDSCH domains Frequency domain resource allocation result the corresponding frequency domain resource in predetermined search space is distributed into corresponding terminal；And determining base station exists The PDSCH of terminal is transmitted in predetermined search space on the running time-frequency resource of corresponding first frequency domain resource.

According to one embodiment of present invention, a kind of base station is provided, including：Processor is used to indicate object for obtaining It manages in down control channel PDCCH domains for the first instruction information of the PDCCH resource of PDSCH transmission；Radio-frequency module, for Terminal sends the first instruction information；Wherein, the first instruction information is determined for terminal in first time unit in PDCCH domains, is used In the PDCCH resource of PDSCH transmission.

Optionally, processor is additionally operable to be distributed to the corresponding frequency domain resource in predetermined search space according to resource allocation rule Corresponding terminal；Wherein, resource allocation rule includes：According to the frequency domain resource allocation result in PDSCH domains by predetermined search space Corresponding frequency domain resource distributes to corresponding terminal.

Optionally, processor is additionally operable to that there are a variety of frequency domain resource allocation results in a manner of time division multiplexing tdm in PDSCH domains In the case of, a kind of frequency domain resource allocation result is selected from a variety of frequency domain resource allocation results, is according to resource allocation rule Each OFDM symbol or each OFDM symbol group determine PDSCH resources.

According to still another embodiment of the invention, a kind of storage medium is additionally provided.The storage medium is set as storage and uses In the program code for performing following steps：It obtains and is used to indicate in physical downlink control channel PDCCH domain for PDSCH transmission First instruction information of PDCCH resource；It is determined according to instruction information in first time unit in PDCCH domains, for PDSCH transmission PDCCH resource.

According to still another embodiment of the invention, a kind of storage medium is additionally provided.The storage medium is set as storage and uses In the program code for performing following steps：It obtains and is used to indicate in physical downlink control channel PDCCH domain for PDSCH transmission First instruction information of PDCCH resource；The first instruction information is sent to terminal；Wherein, the first instruction information determines for terminal In first time unit in PDCCH domains, for the PDCCH resource of PDSCH transmission.

By the present invention, PDSCH is used for since terminal can receive to be used to indicate in physical downlink control channel PDCCH domain First instruction information of the PDCCH resource of transmission, and then can determine to be used in PDCCH domains according to the first instruction information The PDCCH resource of PDSCH transmission, you can indicate that the PDSCH being multiplexed in PDCCH domains is provided in a manner of by the first instruction information Source, thus can solve the problems, such as the PDSCH resources in the relevant technologies without the instruction multiplexing of normal direction terminal on PDCCH symbols.

Description of the drawings

Attached drawing described herein is used to provide further understanding of the present invention, and forms the part of the application, this hair Bright illustrative embodiments and their description do not constitute improper limitations of the present invention for explaining the present invention.In the accompanying drawings：

Fig. 1 is a kind of mobile terminal of the determining method of Physical Downlink Shared Channel PDSCH resources of the embodiment of the present invention Hardware block diagram；

Fig. 2 is the flow chart one of the determining method of Physical Downlink Shared Channel PDSCH resources according to embodiments of the present invention；

Fig. 3 is the flow of the determining method of Physical Downlink Shared Channel PDSCH resources provided according to embodiments of the present invention Figure two；

Fig. 4 is the structure diagram of the determining device of Physical Downlink Shared Channel PDSCH resources according to embodiments of the present invention One；

Fig. 5 is the structure diagram of the determining device of Physical Downlink Shared Channel PDSCH resources according to embodiments of the present invention Two；

Fig. 6 is the structure diagram of the terminal provided according to embodiments of the present invention；

Fig. 7 is the structure diagram of the base station provided according to embodiments of the present invention；

Fig. 8 is the schematic diagram in PDCCH domain search space provided according to the preferred embodiment of the present invention；

Fig. 9 is the UE1 provided according to the preferred embodiment of the present invention 2 and the schematic diagram of the corresponding search spaces of UE2；

Figure 10 is the schematic diagram in the PDCCH domains and PDSCH domains before the multiplexing provided according to the preferred embodiment of the present invention 3；

Figure 11 is the multiplexed PDCCH domains provided according to the preferred embodiment of the present invention 3 and the schematic diagram in PDSCH domains；

Figure 12 is the signal in the PDCCH domains and PDSCH domains before being multiplexed according to the embodiment 4 that the preferred embodiment of the present invention provides Figure；

Figure 13 is the signal in 4 multiplexed PDCCH domains of embodiment and PDSCH domains provided according to the preferred embodiment of the present invention Figure.

Specific embodiment

Come that the present invention will be described in detail below with reference to attached drawing and in conjunction with the embodiments.It should be noted that do not conflicting In the case of, the feature in embodiment and embodiment in the application can be combined with each other.

It should be noted that term " first " in description and claims of this specification and above-mentioned attached drawing, " Two " etc. be the object for distinguishing similar, and specific sequence or precedence are described without being used for.

Embodiment 1

The embodiment of the method that the embodiment of the present application one is provided can be in mobile terminal, terminal or similar fortune It calculates and is performed in device.For running on mobile terminals, Fig. 1 is a kind of Physical Downlink Shared Channel of the embodiment of the present invention The hardware block diagram of the mobile terminal of the determining method of PDSCH resources.As shown in Figure 1, mobile terminal 10 can include one Or (processor 102 can include but is not limited to Micro-processor MCV or programmable to multiple (one is only shown in figure) processors 102 The processing unit of logical device FPGA etc.), for storing the memory 104 of data and the transmitting device for communication function 106.It will appreciated by the skilled person that structure shown in FIG. 1 is only to illustrate, not to the knot of above-mentioned electronic device It is configured to limit.For example, mobile terminal 10 may also include more either less components than shown in Fig. 1 or have and Fig. 1 Shown different configuration.

Memory 104 can be used for the software program and module of storage application software, such as the physics in the embodiment of the present invention Corresponding program instruction/the module of determining method of DSCH Downlink Shared Channel PDSCH resources, processor 102 are stored in by operation Software program and module in reservoir 104 so as to perform various functions application and data processing, that is, realize above-mentioned side Method.Memory 104 may include high speed random access memory, may also include nonvolatile memory, as one or more magnetism is deposited Storage device, flash memory or other non-volatile solid state memories.In some instances, memory 104 can further comprise relatively In the remotely located memory of processor 102, these remote memories can pass through network connection to mobile terminal 10.Above-mentioned net The example of network includes but not limited to internet, intranet, LAN, mobile radio communication and combinations thereof.

Transmitting device 106 is used to receive via a network or transmission data.Above-mentioned network specific example may include The wireless network that the communication providers of mobile terminal 10 provide.In an example, transmitting device 106 includes a Network adaptation Device (Network Interface Controller, NIC), can be connected by base station with other network equipments so as to it is mutual Networking is communicated.In an example, transmitting device 106 can be radio frequency (Radio Frequency, RF) module, use In wirelessly being communicated with internet.

A kind of Physical Downlink Shared Channel PDSCH resources for running on above-mentioned mobile terminal are provided in the present embodiment Determine method, Fig. 2 is the flow chart of the determining method of Physical Downlink Shared Channel PDSCH resources according to embodiments of the present invention One, as shown in Fig. 2, the flow includes the following steps：

Step S202 is obtained and is used to indicate in physical downlink control channel PDCCH domain for the PDCCH of PDSCH transmission moneys The first instruction information in source；

Step S204 is determined in first time unit in PDCCH domains according to instruction information, for the PDCCH of PDSCH transmission Resource.

By above-mentioned steps, it is used for since terminal can receive to be used to indicate in physical downlink control channel PDCCH domain First instruction information of the PDCCH resource of PDSCH transmission, and then can determine to use in PDCCH domains according to the first instruction information In the PDCCH resource of PDSCH transmission, you can indicate the PDSCH being multiplexed in PDCCH domains in a manner of by the first instruction information Resource, thus can solve the problems, such as the PDSCH resources in the relevant technologies without the instruction multiplexing of normal direction terminal on PDCCH symbols.

It should be noted that above-mentioned first time unit can include：One or more scheduling time unit, wherein, It is discrete or continuous between multiple scheduling time units in the case where first time unit includes multiple scheduling time units 's.

It should be noted that above-mentioned PDCCH domains can include：For one or more orthogonal frequency of PDCCH transmission It is multiplexed OFDM symbol.Wherein, which can be the OFDM symbols in said one or multiple scheduling time units Number.

Above-mentioned first instruction information can be that the mode shown can be indicated by implicit mode, the present invention's It in one embodiment, is indicated by way of display, above-mentioned steps S202 can specifically be shown as：Receive downlink control letter Cease DCI；Wherein, DCI includes：It is used to indicate in PDCCH domains for the instructions field of the PDCCH resource of PDSCH transmission.Pass through The mode of above-mentioned instructions field is increased newly in DCI to carry the first instruction information.

It should be noted that above-mentioned instructions field can be field, but it is not limited to this.

It should be noted that above-mentioned instructions field, which can serve to indicate that in the specified Candidate Set in PDCCH domains, is used for PDSCH transmission Candidate；Wherein, it is for the candidate collection of aggregation level or the subset of candidate collection to specify Candidate Set, is specified in Candidate Set Candidate is when no PDCCH needs transmission for PDSCH transmission.

It should be noted that above-mentioned candidate collection can be divided into two classes：First kind candidate and the second class are candidate, wherein, First kind candidate (candidate) is the special candidate of PDCCH, is simply possible to use in PDCCH transmission, is not useable for PDSCH biographies It is defeated；Second class candidate is PDSCH candidate candidate, can be not only used for PDCCH transmission, it can also be used to PDSCH transmission, but PDCCH transmission is preferentially used for, when there is no PDCCH to need transmission, for PDSCH transmission.

It should be noted that above-mentioned specified Candidate Set is candidate for above-mentioned second class, but it is not limited to this.

It should be noted that above-mentioned candidate collection can be all search spaces of corresponding aggregation level or all search The subset in space.

It should be noted that above-mentioned set refers to the set of control channel basic resource unit, can be CCE or REG Or the polymerization in PRB or other basic search spaces.

Above-mentioned aggregation level can include at least one of：The set of all aggregation levels；The collection of partially polymerized rank It closes；Specified aggregation level.

It should be noted that above-mentioned candidate collection is at least one of：Corresponding entire PDCCH occupies the complete of running time-frequency resource Portion search space；PDCCH occupies the part searches space of running time-frequency resource on corresponding specified beams direction；Correspondence specifies search for space The part searches space of type；Wherein, the space type that specifies search for includes at least one of：Public search space, specially With search space, group searching space, wherein, the group searching space is the search space that one group of terminal shares DCI.

It should be noted that whole search spaces, time domain corresponds to one or more OFDM symbols, and frequency domain corresponds to one or more A PRB Set；Above-mentioned part searches space, time domain correspond to one, multiple or 1/n OFDM symbol, and n is positive integer, frequency domain pair Answer the subset of a PRB Set or a PRB Set.

In one embodiment of the invention, it is included in above-mentioned instructions field can include bit number and specified Candidate Set Candidate number is identical.Thus it can indicate to be used for PDSCH in the specified Candidate Set in PDCCH domains by bitmap bitmap modes The candidate of transmission.

It should be noted that when bit in instructions field is the first designated value, represent in specified Candidate Set with bit Position is corresponding candidate for PDSCH transmission；When bit is the second designated value, represent corresponding with bit in specified Candidate Set Candidate not be used for PDSCH transmission.It should be noted that above-mentioned first designated value can be 0 or 1, the second designated value can be with It is 1 or 0, but it is not limited to this.

It should be noted that the corresponding aggregation level of above-mentioned specified Candidate Set can be polymerization corresponding with above-mentioned Candidate Set Rank is equal or the corresponding aggregation level of above-mentioned specified Candidate Set is the subset of aggregation level corresponding with above-mentioned Candidate Set, But it is not limited to this.

It should be noted that the specified corresponding aggregation level of Candidate Set can be determined by least one of mode：Nothing Line resources control RRC signaling is configured；System information block SIB or system information SI are semi-statically configured；Specified protocol provides；According to work as Whether base station has sent the testing result of PDCCH to terminal and has determined in preceding scheduling time unit；Wherein, it is to end in testing result In the case that end has sent PDCCH, the aggregation level of Candidate Set and base station is specified to send aggregation level phase used by PDCCH Together, in the case where testing result is does not send PDCCH to terminal, the aggregation level of specified Candidate Set is the polymer grade of acquiescence Not.

In one embodiment of the invention, it is indicated by implicit mode, above-mentioned steps S202 can be shown as： Whether detection base station carries DCI or effective control channel in predetermined search space, obtains testing result；Wherein, it is examining Result is surveyed in the case of carrying DCI or effective control channel in predetermined search space, to show PDCCH domains for PDCCH Transmission and the corresponding frequency domain resource in predetermined search space are PDCCH resource.

It should be noted that DCI is not carried in predetermined search space in the second instruction information instruction or effectively controls letter In the case of road, show PDCCH domains and do not transmitted for PDCCH.

It should be noted that above-mentioned predetermined search space can be one or more corresponding control channel basic resources list The search space of member.Specific on running time-frequency resource, time domain can correspond to one or more OFDM symbols, and frequency domain can correspond to one The subset of PRB Set or a PRB Set, i.e. multiple continuous or discrete PRB.

It should be noted that above-mentioned search space can include at least one of：Public search space, group searching are empty Between；Wherein, group searching space shares the search space of DCI for one group of terminal.

An OFDM symbol or an OFDM symbol group of the above-mentioned predetermined search space on time-domain dimension, a kind of corresponding wave Shu Fangxiang.Different OFDM symbols or OFDM symbol group can correspond to identical or different OFDM directions.

In one embodiment of the invention, after step s 204, the above method can also include：Judge to search predetermined Rope spatially whether the PDSCH of transmission terminal.

Specifically, judge spatially whether the PDSCH of transmission terminal can be shown as in predetermined search：In predetermined search sky Between other than other candidate or other search spaces on blind Detecting PDCCH；Detecting that base station has sent DCI in itself to terminal, It is regular according to the resource allocation of predetermined search space propagation PDSCH and in the case of including resource distribution instruction domain in DCI, The frequency domain resource that resource distribution instruction domain indicates frequency domain resource corresponding with predetermined search space is taken into intersection, obtains the first frequency domain Resource；Wherein, resource allocation rule includes：It is according to the frequency domain resource allocation result in PDSCH domains that predetermined search space is corresponding Frequency domain resource distributes to corresponding terminal；Determine base station in predetermined search space on the running time-frequency resource of corresponding first frequency domain resource Transmit the PDSCH of terminal.

It should be noted that above-mentioned first frequency domain resource refers to frequency domain dimension, not including time-domain dimension, above-mentioned first frequency The time-domain dimension of the time-domain resource of domain resource corresponds to all OFDM symbols or the part OFDM symbols that above-mentioned predetermined search space includes Number, the frequency domain dimension of the time-domain resource of above-mentioned first frequency domain resource corresponds to above-mentioned first running time-frequency resource.

Optionally, the executive agent of above-mentioned steps can be terminal etc., but not limited to this.

Through the above description of the embodiments, those skilled in the art can be understood that according to above-mentioned implementation The method of example can add the mode of required general hardware platform to realize by software, naturally it is also possible to by hardware, but it is very much In the case of the former be more preferably embodiment.Based on such understanding, technical scheme of the present invention is substantially in other words to existing The part that technology contributes can be embodied in the form of software product, which is stored in a storage In medium (such as ROM/RAM, magnetic disc, CD), used including some instructions so that a station terminal equipment (can be mobile phone, calculate Machine, server or network equipment etc.) perform method described in each embodiment of the present invention.

Embodiment 2

The embodiment of the present invention additionally provides a kind of determining method of Physical Downlink Shared Channel PDSCH resources, and Fig. 3 is basis The flowchart 2 of the determining method of Physical Downlink Shared Channel PDSCH resources provided in an embodiment of the present invention, as shown in figure 3, should Method includes：

Step S302 is obtained and is used to indicate in physical downlink control channel PDCCH domain for the PDCCH of PDSCH transmission moneys The first instruction information in source；

Step S304 sends the first instruction information to terminal；Wherein, the first instruction information determines at the first time for terminal In unit in PDCCH domains, for the PDCCH resource of PDSCH transmission.

By above-mentioned steps, terminals physical down control channel PDCCH domains can be informed by the above-mentioned first instruction information In be used for PDSCH transmission PDCCH resource, thus can solve in the relevant technologies without normal direction terminal instruction multiplexing PDCCH accord with The problem of PDSCH resources on number.

It should be noted that above-mentioned first time unit can include：One or more scheduling time unit, wherein, It is discrete or continuous between multiple scheduling time units in the case where first time unit includes multiple scheduling time units 's.Above-mentioned PDCCH domains can include：For one or more orthogonal frequency division multiplex OFDM symbol of PDCCH transmission.Wherein, The OFDM symbol can be the OFDM symbol in said one or multiple scheduling time units.

Above-mentioned first instruction information can be that the mode shown can be indicated by implicit mode, the present invention's It in one embodiment, is indicated by way of display, can specifically be shown as：First instruction information can include：Downlink Control information DCI；Wherein, DCI includes：It is used to indicate in PDCCH domains for the instructions field of the PDCCH resource of PDSCH transmission. The first instruction information is carried by way of increasing above-mentioned instructions field newly in DCI.

In one embodiment of the invention, it is indicated, can be shown as by implicit mode：Above-mentioned first instruction Information includes：Whether base station carries DCI or effective control channel in predetermined search space；Wherein, in predetermined search sky In carry DCI or effective control channel in the case of, show PDCCH domains for PDCCH transmit and predetermined search space Corresponding frequency domain resource is PDCCH resource.DCI whether is carried in predetermined search space or effectively control is believed i.e. by base station Road transmits to inform whether terminal PDCCH domains are used for PDCCH, if be used for, the corresponding frequency domain resource in predetermined search space is PDCCH resource.

In one embodiment of the invention, before above-mentioned steps S302, the above method can also include：According to resource The corresponding frequency domain resource in predetermined search space is distributed to corresponding terminal by allocation rule；Wherein, resource allocation rule includes：Root The corresponding frequency domain resource in predetermined search space is distributed into corresponding terminal according to the frequency domain resource allocation result in PDSCH domains.Pass through The resource allocation rule distributes frequency domain resource, ensures the corresponding frequency domain resource distribution in predetermined search space and the frequency domain in PDSCH domains The result of resource allocation is consistent or the corresponding frequency domain resource distribution in predetermined search space be PDSCH domains frequency domain resource distribution Subset.

In one embodiment of the invention, in PDSCH domains, there are the distribution of a variety of frequency domain resources in a manner of time division multiplexing tdm As a result in the case of, the above method can also include：A kind of frequency domain resource distribution is selected from a variety of frequency domain resource allocation results As a result, PDSCH resources are determined for each OFDM symbol or each OFDM symbol group according to resource allocation rule.Exist In the case of a variety of frequency domain resource allocation results, need to carry out resource allocation with reference to one of frequency domain resource allocation result.

Optionally, the executive agent of above-mentioned steps can be base station etc., but not limited to this.

Embodiment 3

A kind of determining device of Physical Downlink Shared Channel PDSCH resources is additionally provided in the present embodiment, which uses In realizing above-described embodiment and preferred embodiment, repeating no more for explanation had been carried out.As used below, term " module " can realize the combination of the software and/or hardware of predetermined function.Although the described device of following embodiment is preferably It is realized with software, but the realization of the combination of hardware or software and hardware is also what may and be contemplated.

Fig. 4 is the structure diagram of the determining device of Physical Downlink Shared Channel PDSCH resources according to embodiments of the present invention One, as shown in figure 4, the device includes：

Acquisition module 42 is used to indicate in physical downlink control channel PDCCH domain for obtaining for PDSCH transmission First instruction information of PDCCH resource；

Determining module 44 is connect with above-mentioned acquisition module 42, for being determined in first time unit according to instruction information In PDCCH domains, for the PDCCH resource of PDSCH transmission.

By above device, passed due to that can receive to be used to indicate in physical downlink control channel PDCCH domain for PDSCH First instruction information of defeated PDCCH resource, and then can determine to be used for PDSCH in PDCCH domains according to the first instruction information The PDCCH resource of transmission, you can indicate the PDSCH resources being multiplexed in PDCCH domains in a manner of by the first instruction information, because And it can solve the problems, such as the PDSCH resources in the relevant technologies without the instruction multiplexing of normal direction terminal on PDCCH symbols.

It should be noted that above-mentioned PDCCH domains can include：For one or more orthogonal frequency of PDCCH transmission It is multiplexed OFDM symbol.

Above-mentioned first instruction information can be that the mode shown can be indicated by implicit mode, the present invention's It in one embodiment, is indicated by way of display, specifically, above-mentioned acquisition module 42, can be also used for receiving downlink Control information DCI；Wherein, DCI includes：It is used to indicate in PDCCH domains for the instructions field of the PDCCH resource of PDSCH transmission.

In one embodiment of the invention, it is indicated by implicit mode, specifically, above-mentioned acquisition module 42, It can be also used for whether detection base station carries DCI or effective control channel in predetermined search space, obtain testing result； Wherein, in testing result in the case of carrying DCI or effective control channel in predetermined search space, to show PDCCH Domain is transmitted for PDCCH and the corresponding frequency domain resource in predetermined search space is PDCCH resource.

It should be noted that DCI is not carried in predetermined search space in the second instruction information instruction or effectively controls letter In the case of road, show that PDCCH domains are not multiplexed and transmitted in PDCCH.

In one embodiment of the invention, above device can also include：Judgment module connects with above-mentioned determining module 44 Connect, for judge predetermined search spatially whether the PDSCH of transmission terminal.

It should be noted that above-mentioned judgment module can include：Blind Detecting unit, for other than predetermined search space Blind Detecting PDCCH on other candidate or other search spaces；Processing unit, for detecting that base station has sent in itself to terminal DCI, and advised in DCI comprising in the case of resource distribution instruction domain according to the resource allocation of predetermined search space propagation PDSCH Then, the frequency domain resource that resource distribution instruction domain indicates frequency domain resource corresponding with predetermined search space is taken into intersection, obtains first Frequency domain resource；Wherein, resource allocation rule includes：According to the frequency domain resource allocation result in PDSCH domains by predetermined search space pair The frequency domain resource answered distributes to corresponding terminal；Determination unit, for determining base station corresponding first frequency in predetermined search space The PDSCH of terminal is transmitted on the running time-frequency resource of domain resource.

Optionally, above device can be located in terminal, but not limited to this.

It should be noted that above-mentioned modules can be realized by software or hardware, for the latter, Ke Yitong In the following manner realization is crossed, but not limited to this：Above-mentioned module is respectively positioned in same processor；Alternatively, above-mentioned modules are with arbitrary The form of combination is located in different processors respectively.

Embodiment 4

Fig. 5 is the structure diagram of the determining device of Physical Downlink Shared Channel PDSCH resources according to embodiments of the present invention Two, as shown in figure 5, the device includes：

Acquisition module 52 is used to indicate in physical downlink control channel PDCCH domain for obtaining for PDSCH transmission First instruction information of PDCCH resource；

Sending module 54 is connect with above-mentioned acquisition module 52, for sending the first instruction information to terminal；Wherein, first Instruction information is determined for terminal in first time unit in PDCCH domains, for the PDCCH resource of PDSCH transmission.

By above device, terminals physical down control channel PDCCH domains can be informed by the above-mentioned first instruction information In be used for PDSCH transmission PDCCH resource, thus can solve in the relevant technologies without normal direction terminal instruction multiplexing PDCCH accord with The problem of PDSCH resources on number.

It should be noted that above-mentioned first time unit can include：One or more scheduling time unit, wherein, It is discrete or continuous between multiple scheduling time units in the case where first time unit includes multiple scheduling time units 's.Above-mentioned PDCCH domains can include：For one or more orthogonal frequency division multiplex OFDM symbol of PDCCH transmission.

In one embodiment of the invention, it is indicated, can be shown as by implicit mode：Above-mentioned first instruction Information includes：Whether base station carries DCI or effective control channel in predetermined search space；Wherein, in predetermined search space In the case of inside carrying DCI or effective control channel, show PDCCH domains for PDCCH transmission and predetermined search space pair The frequency domain resource answered is PDCCH resource.DCI or effective control channels whether are carried in predetermined search space by base station It is transmitted to inform whether terminal PDCCH domains are used for PDCCH, if be used for, the corresponding frequency domain resource in predetermined search space is PDCCH resource.

In one embodiment of the invention, above device can also include：First distribution module connects with acquisition module 52 It connects, for the corresponding frequency domain resource in predetermined search space to be distributed to corresponding terminal according to resource allocation rule；Wherein, resource Allocation rule includes：The corresponding frequency domain resource in predetermined search space is distributed to according to the frequency domain resource allocation result in PDSCH domains Corresponding terminal.Frequency domain resource is distributed by the resource allocation rule, ensures the corresponding frequency domain resource distribution in predetermined search space The corresponding frequency domain resource distribution in consistent or predetermined search space is PDSCH domains with the result that the frequency domain resource in PDSCH domains is distributed Frequency domain resource distribution subset.

In one embodiment of the invention, above device can also include：Second distribution module, with above-mentioned acquisition module 52 connections, in the case where PDSCH domains are in a manner of time division multiplexing tdm there are a variety of frequency domain resource allocation results, from a variety of A kind of frequency domain resource allocation result is selected in frequency domain resource allocation result, according to resource allocation rule for each OFDM symbol or Each OFDM symbol group determines PDSCH resources.I.e. in the case of there are a variety of frequency domain resource allocation results, need with reference to it In a frequency domain resource allocation result carry out resource allocation.

Optionally, above device can be located in base station, but not limited to this.

Embodiment 5

The embodiment of the present invention additionally provides a kind of terminal, and Fig. 6 is that the structure of the terminal provided according to embodiments of the present invention is shown It is intended to, as shown in fig. 6, the terminal includes：

Radio-frequency module 62 is used to indicate in physical downlink control channel PDCCH domain for obtaining for PDSCH transmission First instruction information of PDCCH resource；

Processor 64 is connect with above-mentioned radio-frequency module 62, for determining PDCCH in first time unit according to instruction information In domain, for the PDCCH resource of PDSCH transmission.

By above-mentioned terminal, passed due to that can receive to be used to indicate in physical downlink control channel PDCCH domain for PDSCH First instruction information of defeated PDCCH resource, and then can determine to be used for PDSCH in PDCCH domains according to the first instruction information The PDCCH resource of transmission, you can indicate the PDSCH resources being used in PDCCH domains in a manner of by the first instruction information, thus It can solve the problems, such as to indicate the PDSCH resources on PDCCH symbols without normal direction terminal in the relevant technologies.

Above-mentioned first instruction information can be that the mode shown can be indicated by implicit mode, the present invention's It in one embodiment, is indicated by way of display, specifically, above-mentioned radio-frequency module 62, can be also used for receiving downlink Control information DCI；Wherein, DCI includes：It is used to indicate in PDCCH domains for the instructions field of the PDCCH resource of PDSCH transmission.

In one embodiment of the invention, it is indicated by implicit mode, specifically, above-mentioned radio-frequency module 62, It can be also used for whether detection base station carries DCI or effective control channel in predetermined search space, obtain testing result； Wherein, in testing result in the case of carrying DCI or effective control channel in predetermined search space, to show PDCCH domains It is transmitted for PDCCH and the corresponding frequency domain resource in predetermined search space is PDCCH resource.

In one embodiment of the invention, above-mentioned processor, can be also used for judging predetermined search spatially whether The PDSCH of transmission terminal；Specifically, it can be also used on other candidate or other search spaces other than predetermined search space Blind Detecting PDCCH；Detecting that base station has sent DCI, and the situation in resource distribution instruction domain is included in DCI in itself to terminal Under, according to the resource allocation of predetermined search space propagation PDSCH rule, the frequency domain resource that resource distribution instruction domain is indicated with it is pre- Determine the corresponding frequency domain resource in search space and take intersection, obtain the first frequency domain resource；Wherein, resource allocation rule includes：According to The corresponding frequency domain resource in predetermined search space is distributed to corresponding terminal by the frequency domain resource allocation result in PDSCH domains；And really Determine base station transmits terminal in predetermined search space PDSCH on the running time-frequency resource of corresponding first frequency domain resource.

Embodiment 6

The embodiment of the present invention, additionally provides a kind of base station, and Fig. 7 is that the structure of the base station provided according to embodiments of the present invention is shown It is intended to, as shown in fig. 7, comprises：

Processor 72 is used to indicate in physical downlink control channel PDCCH domain for obtaining for PDSCH transmission First instruction information of PDCCH resource；

Radio-frequency module 74 is connect with above-mentioned processor 72, for sending the first instruction information to terminal；Wherein, first refers to Show that information is determined for terminal in first time unit in PDCCH domains, for the PDCCH resource of PDSCH transmission.

By above-mentioned base station, terminals physical down control channel PDCCH domains can be informed by the above-mentioned first instruction information In be used for PDSCH transmission PDCCH resource, thus can solve in the relevant technologies without normal direction terminal instruction be used in PDCCH symbols On PDSCH resources the problem of.

In one embodiment of the invention, above-mentioned processor 72 can be also used for being searched predetermined according to resource allocation rule The corresponding frequency domain resource in rope space distributes to corresponding terminal；Wherein, resource allocation rule includes：According to the frequency domain in PDSCH domains The corresponding frequency domain resource in predetermined search space is distributed to corresponding terminal by resource allocation result.

In one embodiment of the invention, above-mentioned processor 72 can be also used in PDSCH domains with time division multiplexing tdm side In the case that formula is there are a variety of frequency domain resource allocation results, a kind of frequency domain resource point is selected from a variety of frequency domain resource allocation results With as a result, determining PDSCH resources for each OFDM symbol or each OFDM symbol group according to resource allocation rule.

Embodiment 7

The embodiment of the present invention additionally provides a kind of storage medium.Optionally, in the present embodiment, above-mentioned storage medium can With the program code being arranged to the step of storage for performing the method in embodiment 1 or embodiment 2.

Optionally, in the present embodiment, above-mentioned storage medium can include but is not limited to：USB flash disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disc or The various media that can store program code such as CD.

Optionally, in the present embodiment, processor according to stored program code in storage medium perform embodiment 1 or The step of method in embodiment 2.

Optionally, the specific example in the present embodiment can be referred to described in above-described embodiment and optional embodiment Example, details are not described herein for the present embodiment.

Embodiment for a better understanding of the present invention is further explained the present invention below in conjunction with preferred embodiment.

Preferred embodiment 1：

For on some PRB Set, carrying out the user of blind Detecting on the PRB Set, search space is comprising several A CCE, such as comprising this 16 CCE of 0-CCE of CCE 15, the CCE aggregation levels of support are { 1,2,4,8,16 }, and Fig. 8 is root According to the preferred embodiment of the present invention provide PDCCH domain search space schematic diagram, as shown in Figure 8.

So according to search space range and CCE aggregation levels, for certain DCI format, user's blind Detecting number It is 16+8+4+2+1=31 times, that is, corresponds to situation of the aggregation level for 1 CCE, there are 16 candidate；Corresponding aggregation level For the situation of 2 CCE, there are 8 candidate；Situation of the corresponding aggregation level for 4 CCE, there is 4 candidate；It is corresponding Situation of the aggregation level for 8 CCE, there is 2 candidate；Situation of the corresponding aggregation level for 16 CCE, there is 1 candidate。

Whether agreement regulation " instruction of PDCCH domains PDSCH resources " field one defined in DCI, be used to refer to PDCCH domains It is multiplexed and is multiplexed to PDSCH transmission in PDSCH transmission and which specific PDCCH resource, which uses the bitmap of 4 bits, Concrete meaning is：

When corresponding aggregation level is 1 CCE, the bitmap of 4 bits is used to indicate latter 4 in 16 candidate Whether 4 candidate of candidate or preceding indicate that the lowest order in 4 bits corresponds to 4 for PDSCH transmission That candidate of CCE indexes minimum in candidate, and so on, the highest order in 4 bits corresponds to 4 That candidate of CCE index values maximum in candidate, corresponding bit position 1 represent corresponding candidate by user PDSCH transmission, corresponding bit position 0 represent that corresponding candidate is not applied to PDSCH transmission；

When corresponding aggregation level is 2 CCE, the bitmap of 4 bits is used to indicate latter 4 in 8 candidate Whether 4 candidate of candidate or preceding indicate that the lowest order in 4 bits corresponds to 4 for PDSCH transmission That candidate of CCE index minimums is originated in candidate, and so on, the highest order in 4 bits corresponds to 4 That candidate of CCE index values maximum in candidate, corresponding bit position 1 represent corresponding candidate by user PDSCH transmission, corresponding bit position 0 represent that corresponding candidate is not applied to PDSCH transmission；

When corresponding aggregation level is 4 CCE, whether the bitmap of 4 bits is used to indicate 4 candidate for PDSCH Transmission indicates that the lowest order in 4 bits corresponds to that candidate that CCE index minimums are originated in 4 candidate, successively Analogize, the highest order in 4 bits corresponds to that candidate of CCE index values maximum in 4 candidate, corresponding bit position It puts 1 expression and corresponds to candidate by user's PDSCH transmission, corresponding bit position 0 represents that corresponding candidate is not applied to PDSCH transmission；

When corresponding aggregation level is 8 CCE, rear 2 bits are reserved bit in the bitmap of 4 bits, and preceding 2 bit is used to refer to Show whether 2 candidate indicate that the lowest order in 4 bits corresponds in 2 candidate and originates CCE for PDSCH transmission That minimum candidate is indexed, and so on, high-order 2 bits are reserved bit, and corresponding bit position 1 represents to correspond to For candidate by user's PDSCH transmission, corresponding bit position 0 represents that corresponding candidate is not applied to PDSCH transmission；

When corresponding aggregation level is 16 CCE, rear 3 bits are reserved bit in the bitmap of 4 bits, and the 1st bit is used It is indicated in whether 1 candidate of instruction is used for PDSCH transmission, the lowest order in 4 bits corresponds to 1 candidate, a high position 3 Bit is reserved bit, and corresponding bit position 1 represents corresponding candidate by user's PDSCH transmission, 0 table of corresponding bit position Show that corresponding candidate is not applied to PDSCH transmission.

Agreement can specify that more than five kinds of meanings support or provide only to support one kind in above five kinds, Huo Zhezhi It is a variety of in five kinds more than holding.

If agreement provides only to support one kind in above five kinds, then terminal blind Detecting and after decoding DCI is read " instruction of PDCCH domains PDSCH resources " field, you can understand in the corresponding candidate of specific 4 bit, which candidate quilt For PDSCH transmission.

If agreement regulation supports a variety of in above five kinds or five kinds are supported, then terminal blind Detecting simultaneously decodes DCI Afterwards, it may be determined that issue the DCI of oneself using which kind of CCE aggregation level in base station, it is assumed that be using CCE aggregation levels x, then eventually End parses the meaning that 4 bits represent in " instruction of PDCCH domains PDSCH resources " field according to CCE aggregation levels x.

16 CCE compositions search space in the embodiment is merely illustrative, is specifically not limited to 16 CCE.

CCE aggregation levels { 1,2,4,8,16 } in the embodiment are merely illustrative, specific without being limited thereto.

4 bit bitmap length in the embodiment are merely illustrative, are specifically not limited to 4 bits.

Preferred embodiment 2：

User is before some scheduling time unit carries out PDCCH blind Detectings, according to RNTI information, current time information, Such as the other information that Slot serial numbers, Subframe serial numbers or Frame serial numbers or RRC signaling are configured, blind Detecting can be calculated The search space range of PDCCH, for different CCE aggregation levels, search space range may be different or identical, and difference is used Family is directed to same CCE aggregation levels, and search space range may be different or identical, specifically as shown in figure 9, Fig. 9 is basis The UE1 and the schematic diagram of the corresponding search spaces of UE2 that the preferred embodiment of the present invention 2 provides, the two of same base station service The search space that a user UE1 and UE2, UE1 are determined in current scheduled time unit is " UE1 search spaces " in Fig. 9, comprising The search space that CCE0-CCE15, UE2 are determined in current scheduled time unit is " the UE2 search space " in Fig. 9, comprising CCE6—CCE21.Agreement provides that all users support the CCE aggregation levels of { 1,2,4,8,16 }, although UE1 and UE2 search Spatial dimension is different, but based on respective search space, for certain DCI format, blind Detecting number is 16+8+4+2+1= 31 times, that is, situation of the aggregation level for 1 CCE is corresponded to, there are 16 candidate；Situation of the corresponding aggregation level for 2 CCE, There are 8 candidate；Situation of the corresponding aggregation level for 4 CCE, there is 4 candidate；Corresponding aggregation level is 8 CCE Situation, have 2 candidate；Situation of the corresponding aggregation level for 16 CCE, there is 1 candidate.

" instruction of the PDCCH domains PDSCH resources " field one defined in DCI, be used to refer to PDCCH domains whether be multiplexed in PDSCH transmission and which specific PDCCH resource are multiplexed to PDSCH transmission, which uses the bitmap of 4 bits, this 4 ratio Special bitmap only indicates the search space of particular UE, if part candidate or whole candidate is for the user's PDSCH transmission,

For example, find that base station transmits user 1 DCI, and used CCE aggregation levels are after 1 blind Detecting of user 2, then " instruction of PDCCH domains PDSCH resources " field of 4 bits is in the parsing of user 1 DCI：It is 2 that this 4 bit, which corresponds to aggregation level, Rear 4 candidate during a CCE in 8 candidate, i.e. lowest order represent the 5th candidate, i.e., { CCE8CCE9 } That corresponding candidate, if be used for PDSCH transmission, up to represent the 8th candidate, i.e., { CCE14CCE15 } that corresponding candidate, if by user's PDSCH transmission, 2 intermediate and so on.User 1 decodes The domain is found after DCI as " 1010 ", that is, represents that the 6th and the 8th candidate is used for PDSCH transmission, i.e. { CCE10 CCE11 CCE14 CCE15 } it is used for PDSCH transmission.

After 2 blind Detecting of user without find have DCI transmission, then user 2 think current scheduled time unit oneself not by Scheduling without PDSCH transmission, also need not and can not just parse " instruction of PDCCH domains PDSCH resources " field in DCI.

Preferred embodiment 3：

3 class search spaces are defined, public search space, group searching space, user's dedicated search space, wherein group searching are empty Between can be multiplexed to PDSCH transmission, Figure 10 be PDCCH domains before the multiplexing provided according to the preferred embodiment of the present invention 3 and The schematic diagram in PDSCH domains, it is specific as shown in Figure 10.

User is in some scheduling time unit, meeting blind Detecting group searching space, using specific group RNTI, if user is blind Detection group searching thinks that the search space does not send DCI behind space, then it represents that on current scheduled time unit, group searching space It is used for PDSCH transmission, if thinking that base station has sent DCI on the search space behind user's blind Detecting group searching space, Represent that group searching space is transmitted for DCI on current scheduled time unit, is not multiplexed to PDSCH transmission.

Specifically, some scheduling time unit, base station do not send DCI in group searching space, to avoid PDCCH domains resource Waste, base station send PDSCH in group searching space, and Figure 11 is the multiplexed PDCCH provided according to the preferred embodiment of the present invention 3 Domain and the schematic diagram in PDSCH domains, it is specific as shown in figure 11, according to PDSCH domains frequency domain resource distribution condition, for group searching space In the frequency domain resource occupied, UE1 and UE2 scheduled respectively in PDSCH domains, therefore base station also draws group searching space on frequency domain It is divided into 2 parts, part scheduling UE1, another part scheduling UE2 ensures that the PDSCH frequency domain resources of the scheduling in group searching space are divided Subset with the frequency domain resource distribution for being PDSCH domain schedulings, but because group searching spatial frequency domain range is less than PDSCH domains frequency domain model It encloses, therefore for user 1, user 1 is distributed in group searching space and is less than PDSCH domains for the frequency domain resource of PDSCH transmission Frequency domain resource of the user 1 for PDSCH transmission is inside distributed to, it is also the same such to user 2.

In current scheduled time unit, after user 1 is to group searching space blind Detecting, it is found that the search space does not carry DCI, then user 1 know base station current scheduling unit group searching spatial reuse in PDSCH transmission, user 1 then use by blind Detecting Family dedicated search space detects the DCI of oneself in user's dedicated search caecitas spatialis for 1, reads in DCI " resource allocation " Domain so as to be aware of the frequency domain resource of PDSCH domains base station scheduling oneself PDSCH, is denoted as resource 1 here, and user 1 can check that group is searched The frequency domain resource in rope space, is denoted as resource 2 here, and resource 1 and resource 2 can be taken intersection, resource 3 be obtained, if resource by user 1 3 non-emptys, then user 1 recognize whole time-domain resources in group searching space, marked in the frequency domain resource of corresponding resource 3, i.e. Figure 11 For the dash area of " being multiplexed to UE1PDSCH ", base station transmits PDSCH to oneself, so as to user 1 to the part resource and Get on demodulating and decoding PDSCH in PDSCH domains in " UE1PDSCH " resource.

User 2 uses the operation similar with user 1, final to determine to be labeled as in fig. 11 " be multiplexed and give UE2 PDSCH " Dash area, base station transmit PDSCH to oneself, so as to the shade of user 2 to " be multiplexed and give UE2 PDSCH " shown in Figure 11 " UE2 PDSCH " resource in part and PDSCH domains gets on demodulating and decoding PDSCH.

After user N obtains resource 3, resource 3 is found as sky, oneself is sent so as to useless in user N understanding group searchings space PDSCH transmission, then user N only get on demodulating and decoding PDSCH in " UEN PDSCH " resource in PDSCH domains.

Preferred embodiment 4：

Different beam directions is corresponded on the distinct symbols of PDCCH domains, Figure 12 is provided according to the preferred embodiment of the present invention The schematic diagram in PDCCH domains and PDSCH domains before the multiplexing of embodiment 4, specific as shown in figure 12, Symbol 0# correspond to a wave beam Direction, Symbol 1# correspond to another beam direction, similar, and PDSCH domains are also comprising multiple beam directions, Symbol Set 0# corresponds to a beam direction, and Symbol Set 1# correspond to another beam direction, first group of user include user 1, user 2, User 3, user 4, user 5, second group of user include user 6, user 7, user 8, user 9, user 10.The group of first group of user On Symbol 0#, PDSCH domains time domain corresponds to Symbol Set 0# for search space and user's dedicated search space；Second On Symbol 1#, PDSCH domains time domain corresponds to Symbol in the group searching space and user's dedicated search space of group user Set 1#, two groups of user PDSCH domains frequency domains are identical, and two groups of user PDCCH domains frequency domains can be identical or different or be had Overlapping.

To avoid the wasting of resources of PDCCH domains, when group searching space does not have DCI transmission, can be multiplexed to PDSCH transmission, I.e. group searching space of the base station on Symbol 0# can be multiplexed carries out PDSCH transmission to first group of user, in Symbol 1# On group searching space can be multiplexed and carry out PDSCH transmission to second group of user.Figure 13 is carried according to the preferred embodiment of the present invention The 4 multiplexed PDCCH domains of embodiment of confession and the schematic diagram in PDSCH domains, it is specific as shown in figure 13, according to first group of user The frequency domain resource of first group of user group search space is scheduled to user 1 and user by PDSCH domains frequency domain resource distribution condition respectively 2, such as different type dash area in Figure 13, so as to ensure the PDSCH frequency domain resources point of first group of user group search space multiplexing Subset with the frequency domain resource distribution for being first group of user's PDSCH domain scheduling, but because group searching spatial frequency domain range is less than PDSCH domains frequency domain, therefore for user 1, user 1 is distributed in group searching space and is provided for the frequency domain of PDSCH transmission Source is also the same such to user 2 less than frequency domain resource of the user 1 for PDSCH transmission is distributed in PDSCH domains.Similar, it is right Second group of user is also using similar process, so as to correspond to the group searching spatial reuse of second group of user on Symbol 1# to user 6 With user 7, corresponding different hatching styles.

In current scheduled time unit, user 1 has found search sky after the group searching space blind Detecting of Symbol 0# Between without carrying DCI, then user 1 knows that base station current scheduling unit passes the group searching spatial reuse of Symbol 0# in PDSCH Defeated, user's dedicated search space of the then blind Detecting Symbol 0# of user 1 detects for 1 in user's dedicated search caecitas spatialis The DCI of oneself reads " resource allocation " domain in DCI, so as to be aware of base station scheduling oneself on the Symbol Set0# in PDSCH domains The frequency domain resource of PDSCH is denoted as resource 1 here, and user 1 can check the frequency domain resource in the group searching space of Symbol 0#, here Resource 2 is denoted as, resource 1 and resource 2 can be taken intersection, resource 3 be obtained, if 3 non-empty of resource, user 1 recognize by user 1 The group searching space of Symbol 0# is labeled as the moon of " being multiplexed to UE1PDSCH " in the frequency domain resource of corresponding resource 3, i.e. Figure 13 Shadow part, base station transmit PDSCH to oneself, " UE1 PDSCH " money in user 1 to the part resource and PDSCH domains Get on demodulating and decoding PDSCH in source.

In current scheduled time unit, user 6 has found search sky after the group searching space blind Detecting of Symbol 1# Between without carrying DCI, then user 6 knows that base station current scheduling unit passes the group searching spatial reuse of Symbol 1# in PDSCH Defeated, user's dedicated search space of the then blind Detecting Symbol 1# of user 6 detects for 6 in user's dedicated search caecitas spatialis The DCI of oneself reads " resource allocation " domain in DCI, so as to be aware of base station scheduling oneself on the Symbol Set1# in PDSCH domains The frequency domain resource of PDSCH is denoted as resource 1 here, and user 6 can check the frequency domain resource in the group searching space of Symbol 1#, here Resource 2 is denoted as, resource 1 and resource 2 can be taken intersection, resource 3 be obtained, if 3 non-empty of resource, user 6 recognize by user 6 The group searching space of Symbol 1# is labeled as the moon of " being multiplexed to UE6PDSCH " in the frequency domain resource of corresponding resource 3, i.e. Figure 13 Shadow part, base station transmit PDSCH to oneself, so as to " UE6PDSCH " resource in user 6 to the part resource and PDSCH domains Demodulating and decoding PDSCH up.

Obviously, those skilled in the art should be understood that each module of the above-mentioned present invention or each step can be with general Computing device realize that they can concentrate on single computing device or be distributed in multiple computing devices and be formed Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored It is performed in the storage device by computing device, and in some cases, it can be to be different from shown in sequence herein performs The step of going out or describing they are either fabricated to each integrated circuit modules respectively or by multiple modules in them or Step is fabricated to single integrated circuit module to realize.It to be combined in this way, the present invention is not limited to any specific hardware and softwares.

The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.

Claims

A kind of 1. determining method of Physical Downlink Shared Channel PDSCH resources, which is characterized in that including：

It obtains and is used to indicate in physical downlink control channel PDCCH domain for the first instruction letter of the PDCCH resource of PDSCH transmission Breath；

It determines to be used for the PDSCH transmission in first time unit in the PDCCH domains according to the described first instruction information PDCCH resource.
2. according to the method described in claim 1, it is characterized in that, the first time unit includes：One or more is adjusted Time quantum is spent, wherein, in the case where the first time unit includes multiple scheduling time units, during the multiple scheduling Between be discrete or continuous between unit.
3. it according to the method described in claim 1, is passed it is characterized in that, obtaining and being used to indicate in the PDCCH domains for PDSCH First instruction information of defeated PDCCH resource includes：

Receive Downlink Control Information DCI；Wherein, the DCI includes：It is used to indicate in the PDCCH domains and is used for PDSCH transmission PDCCH resource instructions field.
4. according to the method described in claim 3, it is characterized in that, the instructions field is used to indicate the specified of the PDCCH domains The candidate of PDSCH transmission is used in Candidate Set；Wherein, the specified Candidate Set is for the candidate collection of aggregation level or described The subset of candidate collection, candidate in the specified Candidate Set is when no PDCCH needs transmission for PDSCH transmission.
5. according to the method described in claim 4, it is characterized in that, the candidate collection is all of the corresponding aggregation level Search space or the subset of all search spaces.
6. method according to claim 4 or 5, which is characterized in that the aggregation level includes at least one of：

The set of all aggregation levels；

The set of partially polymerized rank；

Specified aggregation level.
7. according to the method described in claim 4, it is characterized in that, the candidate collection is at least one of：

Corresponding entire PDCCH occupies whole search spaces of running time-frequency resource；

PDCCH occupies the part searches space of running time-frequency resource on corresponding specified beams direction；

The corresponding part searches space for specifying search for space type；Wherein, it is described specify search for space type include it is following at least One of：Public search space, dedicated search space, group searching space, wherein, the group searching space is that one group of terminal shares The search space of DCI.
8. according to the method described in claim 4, it is characterized in that, the bit number that includes of the instructions field and the specified candidate Concentrate the candidate number included identical.
9. according to the method described in claim 8, it is characterized in that, the bit in the instructions field is the first designated value When, represent corresponding with the bit candidate for the PDSCH transmission in the specified Candidate Set；It is in the bit During the second designated value, represent corresponding with the bit candidate without for the PDSCH transmission in the specified Candidate Set.
10. according to the method described in claim 4, it is characterized in that, the corresponding aggregation level of the specified Candidate Set by with At least one lower mode determines：

Radio resource control RRC signal deployment；

System information block SIB or system information SI are semi-statically configured；

Specified protocol provides；

The testing result that PDCCH whether has been sent to terminal according to base station in current scheduled time unit determines；Wherein, described Testing result is in the case of having sent PDCCH to the terminal, aggregation level and the base station of the specified Candidate Set are sent out Aggregation level is identical used by sending the PDCCH, in feelings of the testing result not send the PDCCH to the terminal Under condition, the aggregation level of the specified Candidate Set is the aggregation level of acquiescence.
11. according to the method described in claim 1, it is used for PDSCH it is characterized in that, obtaining and being used to indicate in the PDCCH domains First instruction information of the PDCCH resource of transmission includes：

Whether detection base station carries DCI or effective control channel in predetermined search space, obtains testing result；Wherein, In the testing result in the case of carrying the DCI or effective control channel in the predetermined search space, to show The PDCCH domains are transmitted for PDCCH and the corresponding frequency domain resource in the predetermined search space is the PDCCH resource.
12. according to the method for claim 11, which is characterized in that the predetermined search space is corresponds to one or more The search space of control channel basic resource unit.
13. according to the method for claim 11, which is characterized in that described search space includes at least one of：It is public Search space, group searching space；Wherein, the group searching space shares the search space of DCI for one group of terminal.
14. according to the method for claim 11, which is characterized in that one on time-domain dimension of the predetermined search space OFDM symbol or an OFDM symbol group, a kind of corresponding beam direction.
15. according to the method for claim 11, which is characterized in that first time unit is being determined according to the instruction information In the interior PDCCH domains, after the PDCCH resource for the PDSCH transmission, the method further includes：

Judge the predetermined search spatially whether the PDSCH of transmission terminal.
16. according to the method for claim 15, which is characterized in that judge spatially whether transmit institute in the predetermined search The PDSCH for stating terminal includes：

The blind Detecting PDCCH on other candidate or other search spaces other than the predetermined search space；

Detecting that base station has sent DCI, and the situation in resource distribution instruction domain is included in the DCI in itself to the terminal Under, according to the resource allocation of predetermined search space propagation PDSCH rule, the frequency domain that the resource distribution instruction domain is indicated Resource frequency domain resource corresponding with the predetermined search space takes intersection, obtains the first frequency domain resource；Wherein, the resource allocation Rule includes：The corresponding frequency domain resource in the predetermined search space is distributed to according to the frequency domain resource allocation result in PDSCH domains Corresponding terminal；

Base station is determined to be corresponded in the predetermined search space on the running time-frequency resource of first frequency domain resource and transmits the end The PDSCH at end.
A kind of 17. determining method of Physical Downlink Shared Channel PDSCH resources, which is characterized in that including：

It obtains and is used to indicate in physical downlink control channel PDCCH domain for the first instruction letter of the PDCCH resource of PDSCH transmission Breath；

The first instruction information is sent to terminal；Wherein, the first instruction information is determined for the terminal at first Between the PDCCH resource of the PDSCH transmission is used in unit in the PDCCH domains.
18. according to the method for claim 17, which is characterized in that the first time unit includes：One or more Scheduling time unit, wherein, in the case where the first time unit includes multiple scheduling time units, the multiple scheduling It is discrete or continuous between time quantum.
19. according to the method for claim 17, which is characterized in that the first instruction information includes：

Downlink Control Information DCI；Wherein, the DCI includes：It is used to indicate in the PDCCH domains for PDSCH transmission The instructions field of PDCCH resource.
20. according to the method for claim 19, which is characterized in that the instructions field is used to indicate the finger in the PDCCH domains Determine in Candidate Set for the candidate of PDSCH transmission；Wherein, the specified Candidate Set is the candidate collection for aggregation level or institute State the subset of candidate collection, candidate in the specified Candidate Set is when no PDCCH needs transmission for PDSCH transmission.
21. according to the method for claim 20, which is characterized in that institute of the candidate collection for the correspondence aggregation level There is the subset of search space or all search spaces.
22. the method according to claim 20 or 21, which is characterized in that the aggregation level includes at least one of：

The set of all aggregation levels；

The set of partially polymerized rank；

Specified aggregation level.
23. according to the method for claim 20, which is characterized in that the candidate collection is at least one of：

Corresponding entire PDCCH occupies whole search spaces of running time-frequency resource；

PDCCH occupies the part searches space of running time-frequency resource on corresponding specified beams direction；

The corresponding part searches space for specifying search for space type；Wherein, it is described specify search for space type include it is following at least One of：Public search space, dedicated search space, group searching space, wherein, the group searching space is that one group of terminal shares The search space of DCI.
24. according to the method for claim 20, which is characterized in that the bit number that the instructions field includes and the specified time The candidate number included in selected works is identical.
25. according to the method for claim 24, which is characterized in that the bit in the instructions field is the first designated value When, represent corresponding with the bit candidate for the PDSCH transmission in the specified Candidate Set；It is in the bit During the second designated value, represent corresponding with the bit candidate without for the PDSCH transmission in the specified Candidate Set.
26. according to the method for claim 20, which is characterized in that the corresponding aggregation level of the specified Candidate Set by with At least one lower mode determines：

Radio resource control RRC signal deployment；

System information block SIB or system information SI are semi-statically configured；

Specified protocol provides；

The testing result that PDCCH whether has been sent to terminal according to base station in current scheduled time unit determines；Wherein, described Testing result is in the case of having sent PDCCH to the terminal, aggregation level and the base station of the specified Candidate Set are sent out Aggregation level is identical used by sending the PDCCH, in feelings of the testing result not send the PDCCH to the terminal Under condition, the aggregation level of the specified Candidate Set is the aggregation level of acquiescence.
27. according to the method for claim 17, which is characterized in that the first instruction information includes：Base station is searched predetermined Whether DCI or effective control channel are carried in rope space；Wherein, carried in the predetermined search space DCI or In the case of the effective control channel of person, show the PDCCH domains for PDCCH transmission and the corresponding frequency in the predetermined search space Domain resource is the PDCCH resource.
28. according to the method for claim 27, which is characterized in that the predetermined search space is corresponds to one or more The search space of control channel basic resource unit.
29. according to the method for claim 27, which is characterized in that described search space includes at least one of：It is public Search space, group searching space；Wherein, the group searching space shares the search space of DCI for one group of terminal.
30. according to the method for claim 27, which is characterized in that be configured to indicate that Physical Downlink Control Channel It is used in PDCCH domains before the first instruction information of the PDCCH resource of PDSCH transmission, the method further includes：

The corresponding frequency domain resource in the predetermined search space is distributed to by corresponding terminal according to resource allocation rule；Wherein, institute Resource allocation rule is stated to include：According to the frequency domain resource allocation result in PDSCH domains by the corresponding frequency domain in the predetermined search space Resource allocation gives corresponding terminal.
31. according to the method for claim 30, which is characterized in that exist in a manner of time division multiplexing tdm in the PDSCH domains In the case of a variety of frequency domain resource allocation results, the method further includes：It is selected from a variety of frequency domain resource allocation results A kind of frequency domain resource allocation result, it is true for each OFDM symbol or each OFDM symbol group according to the resource allocation rule Determine PDSCH resources.
32. according to the method for claim 27, which is characterized in that one on time-domain dimension of the predetermined search space OFDM symbol or an OFDM symbol group, a kind of corresponding beam direction.
33. a kind of determining device of Physical Downlink Shared Channel PDSCH resources, which is characterized in that including：

Acquisition module provides for obtaining to be used to indicate in physical downlink control channel PDCCH domain for the PDCCH of PDSCH transmission The first instruction information in source；

Determining module, for being determined according to the instruction information in first time unit in the PDCCH domains, for described The PDCCH resource of PDSCH transmission.
34. device according to claim 33, which is characterized in that the acquisition module is additionally operable to receive downlink control letter Cease DCI；Wherein, the DCI includes：It is used to indicate in the PDCCH domains for the instruction of the PDCCH resource of PDSCH transmission Domain.
35. device according to claim 34, which is characterized in that the instructions field is used to indicate the finger in the PDCCH domains Determine in Candidate Set for the candidate of PDSCH transmission；Wherein, the specified Candidate Set is the candidate collection for aggregation level or institute State the subset of candidate collection, candidate in the specified Candidate Set is when no PDCCH needs transmission for PDSCH transmission.
36. device according to claim 33, which is characterized in that the acquisition module is additionally operable to detection base station predetermined DCI or effective control channel whether are carried in search space, obtains testing result；Wherein, the testing result be In the case of the DCI or effective control channel are carried in the predetermined search space, show that the PDCCH domains are used for PDCCH is transmitted and the corresponding frequency domain resource in the predetermined search space is the PDCCH resource.
37. device according to claim 36, which is characterized in that described device further includes：Judgment module, for judging The predetermined search spatially whether the PDSCH of transmission terminal.
38. the device according to claim 37, which is characterized in that the judgment module includes：

Blind Detecting unit, the blind Detecting on other candidate or other search spaces other than the predetermined search space PDCCH；

Processing unit, for detecting that base station has sent DCI, and resource point is included in the DCI in itself to the terminal In the case of with instructions field, according to the resource allocation of predetermined search space propagation PDSCH rule, the resource allocation is referred to Show that the frequency domain resource frequency domain resource corresponding with the predetermined search space of domain instruction takes intersection, obtain the first frequency domain resource；Its In, the resource allocation rule includes：It is according to the frequency domain resource allocation result in PDSCH domains that the predetermined search space is corresponding Frequency domain resource distributes to corresponding terminal；

Determination unit corresponds to the running time-frequency resource of first frequency domain resource for determining base station in the predetermined search space Transmit the PDSCH of the terminal.
39. a kind of determining device of Physical Downlink Shared Channel PDSCH resources, which is characterized in that including：

Acquisition module provides for obtaining to be used to indicate in physical downlink control channel PDCCH domain for the PDCCH of PDSCH transmission The first instruction information in source；

Sending module, for sending the first instruction information to terminal；Wherein, the first instruction information is used for the terminal It determines in first time unit in the PDCCH domains, for the PDCCH resource of the PDSCH transmission.
40. device according to claim 39, which is characterized in that the first instruction information includes：

Downlink Control Information DCI；Wherein, the DCI includes：It is used to indicate in the PDCCH domains for PDSCH transmission The instructions field of PDCCH resource.
41. device according to claim 40, which is characterized in that the instructions field is used to indicate the finger in the PDCCH domains Determine in Candidate Set for the candidate of PDSCH transmission；Wherein, the specified Candidate Set is the candidate collection for aggregation level or institute State the subset of candidate collection, candidate in the specified Candidate Set is when no PDCCH needs transmission for PDSCH transmission.
42. device according to claim 39, which is characterized in that the first instruction information includes：Base station is searched predetermined Whether DCI or effective control channel are carried in rope space；Wherein, carried in the predetermined search space DCI or In the case of the effective control channel of person, show the PDCCH domains for PDCCH transmission and the corresponding frequency in the predetermined search space Domain resource is the PDCCH resource.
43. device according to claim 42, which is characterized in that described device further includes：

First distribution module, for being distributed to the corresponding frequency domain resource in the predetermined search space pair according to resource allocation rule The terminal answered；Wherein, the resource allocation rule includes：Make a reservation for search by described according to the frequency domain resource allocation result in PDSCH domains The corresponding frequency domain resource in rope space distributes to corresponding terminal.
44. device according to claim 43, which is characterized in that described device further includes：

Second distribution module, for there are a variety of frequency domain resource allocation results in a manner of time division multiplexing tdm in the PDSCH domains In the case of, a kind of frequency domain resource allocation result is selected from a variety of frequency domain resource allocation results, according to the resource allocation Rule determines PDSCH resources for each OFDM symbol or each OFDM symbol group.
45. a kind of terminal, which is characterized in that including：

Radio-frequency module provides for obtaining to be used to indicate in physical downlink control channel PDCCH domain for the PDCCH of PDSCH transmission The first instruction information in source；

Processor, for being determined according to the instruction information in first time unit in the PDCCH domains, for the PDSCH The PDCCH resource of transmission.
46. terminal according to claim 45, which is characterized in that the radio-frequency module is additionally operable to receive downlink control letter Cease DCI；Wherein, the DCI includes：It is used to indicate in the PDCCH domains for the instruction of the PDCCH resource of PDSCH transmission Domain.
47. terminal according to claim 46, which is characterized in that the instructions field is used to indicate the finger in the PDCCH domains Determine in Candidate Set for the candidate of PDSCH transmission；Wherein, the specified Candidate Set is the candidate collection for aggregation level or institute State the subset of candidate collection, candidate in the specified Candidate Set is when no PDCCH needs transmission for PDSCH transmission.
48. terminal according to claim 45, which is characterized in that the radio-frequency module is additionally operable to detection base station predetermined DCI or effective control channel whether are carried in search space, obtains testing result；Wherein, the testing result be In the case of the DCI or effective control channel are carried in the predetermined search space, show that the PDCCH domains are used for PDCCH is transmitted and the corresponding frequency domain resource in the predetermined search space is the PDCCH resource.
49. terminal according to claim 48, which is characterized in that the processor is additionally operable in the predetermined search space Blind Detecting PDCCH on other candidate or other search spaces in addition；Detecting that base station has sent in itself to the terminal DCI, and comprising in the case of resource distribution instruction domain in the DCI, according to the money of the predetermined search space propagation PDSCH Source allocation rule, the frequency domain resource frequency domain resource corresponding with the predetermined search space that the resource distribution instruction domain is indicated Intersection is taken, obtains the first frequency domain resource；Wherein, the resource allocation rule includes：It is distributed and tied according to the frequency domain resource in PDSCH domains The corresponding frequency domain resource in the predetermined search space is distributed to corresponding terminal by fruit；And determining base station is in the predetermined search The PDSCH that the terminal is transmitted on the running time-frequency resource of first frequency domain resource is corresponded in space.
50. a kind of base station, which is characterized in that including：

Processor is used to indicate the PDCCH resource that PDSCH transmission is used in physical downlink control channel PDCCH domain for obtaining First instruction information；

Radio-frequency module, for sending the first instruction information to terminal；Wherein, the first instruction information is used for the terminal It determines in first time unit in the PDCCH domains, for the PDCCH resource of the PDSCH transmission.
51. base station according to claim 50, which is characterized in that the first instruction information includes：

Downlink Control Information DCI；Wherein, the DCI includes：It is used to indicate in the PDCCH domains for PDSCH transmission The instructions field of PDCCH resource.
52. base station according to claim 51, which is characterized in that the instructions field is used to indicate the finger in the PDCCH domains Determine in Candidate Set for the candidate of PDSCH transmission；Wherein, the specified Candidate Set is the candidate collection for aggregation level or institute State the subset of candidate collection, candidate in the specified Candidate Set is when no PDCCH needs transmission for PDSCH transmission.
53. base station according to claim 50, which is characterized in that the first instruction information includes：Base station is searched predetermined Whether DCI or effective control channel are carried in rope space；Wherein, carried in the predetermined search space DCI or In the case of the effective control channel of person, show the PDCCH domains for PDCCH transmission and the corresponding frequency in the predetermined search space Domain resource is the PDCCH resource.
54. base station according to claim 53, which is characterized in that the processor is additionally operable to will according to resource allocation rule The corresponding frequency domain resource in the predetermined search space distributes to corresponding terminal；Wherein, the resource allocation rule includes：According to The corresponding frequency domain resource in the predetermined search space is distributed to corresponding terminal by the frequency domain resource allocation result in PDSCH domains.
55. base station according to claim 54, which is characterized in that the processor be additionally operable to the PDSCH domains with when In the case of dividing multiplexing TDM modes there are a variety of frequency domain resource allocation results, selected from a variety of frequency domain resource allocation results A kind of fixed frequency domain resource allocation result is each OFDM symbol or each OFDM symbol group according to the resource allocation rule Determine PDSCH resources.