CN109088707A - Transmission method, detection method, device and the equipment of grading control channel - Google Patents

Transmission method, detection method, device and the equipment of grading control channel Download PDF

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Publication number
CN109088707A
CN109088707A CN201710447411.9A CN201710447411A CN109088707A CN 109088707 A CN109088707 A CN 109088707A CN 201710447411 A CN201710447411 A CN 201710447411A CN 109088707 A CN109088707 A CN 109088707A
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China
Prior art keywords
dci
level
control channel
order
information
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CN201710447411.9A
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CN109088707B (en
Inventor
胡丽洁
夏亮
侯雪颖
柯颋
王启星
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China Mobile Communications Group Co Ltd
China Mobile Communications Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Communications Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036—Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038—Blind format detection

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention provides transmission method, detection method, device and the equipment of a kind of grading control channel to be able to indicate that the type of the DCI of current transmission, by increasing DCI type indication information in the first order of two-stage DCI to simplify the detection complexity of terminal side.In addition, the detection ordering of the DCI of the second level is also possible to notice or preset, further, the embodiment of the present invention gives the design of search space, further simplifies the detection processing of terminal side.

Description

Transmission method, detection method, device and the equipment of grading control channel
Technical field
The present invention relates to mobile communication technology fields, and in particular to a kind of transmission method of grading control channel, detection side Method, device and equipment.
Background technique
In the design that the 5th Generation Mobile Communication System (5G) newly eats dishes without rice or wine (NR), the control letter of two-stage (2-stage) is proposed Road design, to obtain processing time gain, control channel shunts gain, control channel beam forming gain etc., possible realization Mode there are several types of:
1) first order Downlink Control Information (DCI, Downlink Control Information) and second level DCI exist Physical Downlink Control Channel (PDCCH, Physical Downlink Control Channel) area transmissions, two-stage DCI is not It is transmitted on same orthogonal frequency division multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) symbol, There can be the gain in some time delay processings；
2) first order DCI and second level DCI is transmitted in PDCCH region, but first order DCI carries some letters become slowly Breath, it is not necessary that the transmission in each time slot (slot), such as resource block (RB) distribution and basic modulating-coding strategy (MCS), the second level carries real-time scheduling information, transmits on each slot, such as hybrid automatic repeat-request HARQ process ID, RVID, NDI, MCS biasing.This mode can obtain the benefit that some expenses are saved.
3) first order DCI is transmitted in PDCCH, and second level DCI is in PDSCH transmission.First order DCI transmits point of PDSCH Include rank and resource allocation with information, can also include order of modulation, the information that receiving end receives the first order can be carried out Channel estimation or the calculating of LLR etc.；Transmit the relevant information of HARQ in the second level.This scheme is able to achieve control channel Offloading, the gain of processing delay and the reduction of some blind examination complexities；
4) first order DCI is transmitted on PDCCH, and second level DCI is transmitted in PDSCH region.First order DCI carries all DL The relevant information of grant, as long as the processing of PDSCH can be carried out having received the first order.Second level DCI carries some time delays Handle insensitive information, such as HARQ feedback time delay, the resource location of PUCCH, TPC command etc..
5) first order DCI is transmitted on PDCCH, and second level DCI is transmitted in PDSCH region.First order DCI transmits downlink The completion information of DCI, second level DCI transmit some additional such as DL grants or UL grant across slot.
When the same time slot, when needing to transmit multiple DCI to the same UE, such as descending scheduling DCI (DL Scheduling DCI), uplink authorization DCI (UL grant DCI), cross-carrier/timeslot scheduling DCI (cross carrier/ Slot scheduling DCI) etc., if how effectively to carry out the biography of the DCI of the first order and the second level using two-stage DCI It is defeated, while the blind examination complexity of user is reduced, the prior art provides specific scheme not yet.
Summary of the invention
Technical problems to be solved of the embodiment of the present invention are to provide a kind of transmission method of grading control channel, detection side Method, device and equipment realize the transmission of two-stage DCI, and can reduce the blind examination complexity of terminal side.
In order to solve the above technical problems, the transmission method of grading control channel provided in an embodiment of the present invention, comprising:
At least one first order Downlink Control Information DCI is sent to terminal, and, send at least one second level DCI；
Wherein, the first order DCI carries the first instruction information of DCI type.
The embodiment of the invention also provides a kind of detection methods of grading control channel, comprising:
Detect at least one first order Downlink Control Information DCI, wherein first order DCI carries the first finger of DCI type Show information；
According to the first instruction information, at least one second level DCI is detected.
The embodiment of the invention also provides a kind of transmitting devices of grading control channel, include:
Transmission unit, for sending at least one first order Downlink Control Information DCI to terminal, and, send at least one A second level DC；
Wherein, the first order DCI carries the first instruction information of DCI type.
The embodiment of the invention also provides a kind of detection devices of grading control channel, comprising:
Transmission unit, for sending at least one first order Downlink Control Information DCI to terminal, and, send at least one A second level DC；
Wherein, the first order DCI carries the first instruction information of DCI type.
The embodiment of the invention also provides a kind of electronic equipment, comprising:
One or more processors；
Memory；And
One or more programs, wherein one or more of programs are stored in the memory, and are configured It is executed at by one or more of processors, which is characterized in that described program is performed the step realized in above method.
The embodiment of the invention also provides a kind of transmission methods of grading control channel, comprising:
At least one first order DCI is sent to terminal, and, send at least one second level DCI；
Wherein, at least one second level DCI includes the DCI of at least one DCI type, and the of each DCI type The transmission sequence of second level DCI is predetermined.
The embodiment of the invention also provides a kind of detection methods of grading control channel, comprising:
Detect at least one first order DCI；
According to the transmission of the second level DCI of predetermined each DCI type sequence, the inspection of each second level DCI is determined Survey sequence, and, according to the detection ordering, detect second level DCI；
Wherein, at least one first order DCI corresponds at least one DCI type, and the second level of each DCI type The transmission sequence of DCI is predetermined.
Compared with prior art, transmission method, detection method, the device of grading control channel provided in an embodiment of the present invention And equipment is able to indicate that the class of the DCI of current transmission by increasing DCI type indication information in the first order of two-stage DCI Type, to simplify the detection complexity of terminal side.In addition, the detection ordering of the DCI of the second level is also possible to notify or set in advance Fixed, further, the embodiment of the present invention gives the design of search space, further simplifies at the detection of terminal side Reason.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below by institute in the description to the embodiment of the present invention Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings Obtain other attached drawings.
Fig. 1 is an exemplary diagram of the transfer resource position of two-stage DCI in the embodiment of the present invention；
Fig. 2 is a flow diagram of the transmission method of grading control channel provided in an embodiment of the present invention；
Fig. 3 is the exemplary diagram of the search space of control channel provided in an embodiment of the present invention；
Fig. 4 is another flow diagram of the transmission method of grading control channel provided in an embodiment of the present invention；
Fig. 5 is the structural schematic diagram of the transmitting device of grading control channel provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of electronic equipment provided in an embodiment of the present invention；
Fig. 7 is the structural schematic diagram of the detection device of grading control channel provided in an embodiment of the present invention；
Fig. 8 is another structural schematic diagram of electronic equipment provided in an embodiment of the present invention；
Fig. 9 is another flow diagram of the transmission method of grading control channel provided in an embodiment of the present invention；
Figure 10 is another flow diagram of the transmission method of grading control channel provided in an embodiment of the present invention；
Figure 11 is another structural schematic diagram of the transmitting device of grading control channel provided in an embodiment of the present invention；
Figure 12 is another structural schematic diagram of the detection device of grading control channel provided in an embodiment of the present invention.
Specific embodiment
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.In the following description, such as specific configuration is provided and the specific detail of component is only In order to help comprehensive understanding the embodiment of the present invention.It therefore, it will be apparent to those skilled in the art that can be to reality described herein Example is applied to make various changes and modifications without departing from scope and spirit of the present invention.In addition, for clarity and brevity, it is omitted pair The description of known function and construction.
It should be understood that " one embodiment " or " embodiment " that specification is mentioned in the whole text mean it is related with embodiment A particular feature, structure, or characteristic is included at least one embodiment of the present invention.Therefore, occur everywhere in the whole instruction " in one embodiment " or " in one embodiment " not necessarily refer to identical embodiment.In addition, these specific features, knot Structure or characteristic can combine in any suitable manner in one or more embodiments.
In various embodiments of the present invention, it should be appreciated that the size of the serial number of following each processes is not meant to execute suitable Sequence it is successive, the execution of each process sequence should be determined by its function and internal logic, the implementation without coping with the embodiment of the present invention Process constitutes any restriction.In addition, the terms " system " and " network " are often used interchangeably herein.It should be understood that this Term "and/or" in text, only a kind of incidence relation for describing affiliated partner, indicates may exist three kinds of relationships, for example, A And/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, character herein "/" typicallys represent the relationship that forward-backward correlation object is a kind of "or".
For the subframe of current transmission down control channel, when there are the scheduling of downlink traffic channel, two-stage DCI is used Scheduling, can will transmit in the running time-frequency resource region where the DCI shunting information to PDSCH of part, while can be special using terminal With the figuration transmission gain of (UE specific), this is all advantageous the efficiency of transmission and covering that improve control channel.
As shown in Figure 1, first order DCI is transmitted in PDCCH region, second level DCI is located at indicated by first order DCI In the running time-frequency resource of PDSCH, control information in the initial position fractional transmission second level of the running time-frequency resource, second level control letter Cease control channel unit (CCE, Control that the resource size occupied is used by the DCI number transmitted and each DCI Channel Element) number decision.
When current subframe is dispatched there is no downlink business, also just there is no the transmission regions of scheduled PDSCH, at this time Whether it is necessary to carry out two-stage transmission for other DCI such as UL grant, cross-slot or others DCI, can have not Same realization:
1) it is transmitted without two-stage, these DCI are transmitted by the way of single DCI；
This requires those support the UE of two-stage DCI transmission to need while detecting level-one DCI (single level DCI) Just illustrate once detecting the first order in two-stage there is currently PDSCH scheduling with two-stage DCI (2-stage DCI), other DCI be placed in the second level and transmit；And it detects level-one DCI (single level DCI) and illustrates that there is currently no PDSCH Scheduling, by the scheduling information for reading other DCI of the acquisition of information of DCI.
2) two-stage transmission is still carried out；
In this case there are two types of processing strategie, one is the first order indicate that the transmission of second level control channel when Then frequency resource carries out various scheduling classes using traffic channel transmission second level control channel on the running time-frequency resource being instructed to Multiple DCI of the transmission of the control information of type, this same UE of mode can have the DCI of a public first order；It is another It is to be pre-configured with the shared second level control channel of UE specific or more UE, the first order does not need instruction second at this time The resource allocation of grade, can indicate the resource allocation in certain DCI, such as the resource allocation letter of the PUSCH distributed in UL grant Breath.
The embodiment of the invention provides the transmission method and detection method of a kind of grading control channel, using the above-mentioned 2) item Two-stage transmission mode.The embodiment of the present invention carries DCI type indication information in the first order of two-stage DCI, can indicate The type of the DCI of current transmission out.
Referring to figure 2., the transmission method of grading control channel provided in an embodiment of the present invention is applied to network side, such as It can be applied to base station, this method comprises:
Step 21, at least one first order Downlink Control Information DCI is sent to terminal, wherein the first order DCI is carried There is the first instruction information of DCI type.
Here, the DCI type may include the DCI for descending scheduling, be used for uplink scheduling DCI, and, for across At least one of carrier wave scheduling or the DCI across timeslot scheduling etc..Specifically, the DCI type can refer to second level DCI's Type may also mean that by the type of first order DCI and the corresponding second level DCI DCI collectively formed.
Step 22, at least one second level DCI is sent.
The embodiment of the present invention passes through the first order control channel of carrying first order DCI and the second level of carrying second level DCI Control channel transmits first order DCI and second level DCI respectively, and the embodiment of the present invention carries DCI class in first order DCI First instruction information of type, above-mentioned first instruction information can be used for terminal and receive corresponding DCI, to simplify the DCI of terminal Detection processing.
Specifically, when there is currently the scheduling of DSCH Downlink Shared Channel, network can pass through downlink in the embodiment of the present invention Control channel sends at least one first order DCI, and, at least one second level DCI is sent by down control channel；Its In, the first order DCI also carries the second indication information of running time-frequency resource, and the running time-frequency resource part is for the shared letter of bearing downlink Road PDSCH, part resource therein is for carrying second level DCI.As can be seen that carrying the resource of second level DCI at this time originally It is the resource of PDSCH, at this time by the transfer resource as PDCCH.
When there is currently no the scheduling of DSCH Downlink Shared Channel, network can be described at least by down control channel transmission One first order DCI, and, at least one second level DCI is sent by down control channel；Wherein, the first order DCI also carries the third instruction information for carrying the running time-frequency resource of PDCCH of the second level DCI.As can be seen that the first order and Second level DCI is transmitted in PDCCH resource.
When there is currently no the scheduling of DSCH Downlink Shared Channel, first order DCI and can also be sent in the following way Second level DCI: network side sends at least one first order DCI by PDCCH, and, pass through the preconfigured terminal The shared second level control channel of dedicated or including the terminal multiple terminals, sends at least one described second level DCI.At this point, the first order DCI also carries the resource allocation information of scheduled shared channel, such as divide in UL grant The resource allocation information etc. of the PUSCH matched.
It should be noted that above-mentioned down control channel may have different channel names in different communication systems Claim, such as can be the PDCCH in LTE, can also be the NR-PDCCH etc. in NR.
In addition, the first order DCI of the embodiment of the present invention also carry the second level DCI use polymerization grade information and/or The information such as modulation coding scheme (MCS).The first order DCI can be the first order DCI that at least one DCI is shared.
In the embodiment of the present invention, the first instruction information can use the bit map of preset kind template, the default class Pattern plate may include multiple bits, and each bit corresponds to a predetermined DCI type, and works as the bit When value is the first value (such as value 1), indicate that there are the corresponding DCI types of the bit, when the bit value is When second value (such as value 0), indicate that the corresponding DCI type of the bit is not present.Terminal, which passes through, detects the bit map, It can determine DCI type.
For example, it is assumed that DCI type that may be present is DCI, the UL grant DCI of descending scheduling in same subframe, cross slot DCI；The DCI type that the current second level needs to detect then is indicated by 3bit in first order DCI.Such as the One instruction information " 110 " indicates that there is currently the DCI of the DCI and UL grant of descending scheduling, but cross slot is not present DCI, in this way, UE does not need the DCI of blind examination cross slot, can reduce the blind examination number of terminal, simplifies eventually The reception at end is handled.
In order to which the complexity of second level control channel detection further decreases, the embodiment of the present invention can before detection in advance Appoint the detection ordering of second level DCI.At this point, the transmission sequence of the second level DCI of each DCI type is predetermined, When sending second level DCI, according to the transmission sequence, at least one second level DCI is successively sent.For example, for Upper citing can be followed successively by the DCI, UL grant DCI, cross slot of descending scheduling using the transmission sequence of second level DCI DCI, such terminal side to the detection ordering of second level DCI then are as follows: the DCI of descending scheduling, UL grant DCI, cross slot DCI.If corresponding first instruction information is 0, corresponding DCI detection is skipped.This detection ordering can be to be referred to first Show that the sequence of the DCI type indicated in information is identical, can also be different.Above-mentioned detection ordering can be by making an appointment or half is quiet The mode of state notice informs UE, prenotices for example, network configures message by system information (SIB, MIB) or RRC to terminal.
In the embodiment of the present invention, the mode of second level DCI is detected in terminal side, not according to detection auxiliary information obtained Together, there can be different processing.For example, when terminal has determined that blind examination polymerization grade, it can be suitable according to the detection of second level DCI Sequence successively detects each DCI.And the following auxiliary information: the polymerization that second level DCI is used is also indicated out in first order DCI When class information and/or modulation coding scheme information, terminal can use the sequence inspection that above-mentioned auxiliary information carries out second level DCI It surveys, above-mentioned auxiliary information facilitates the complexity that blind examination polymerization grade is reduced when the detection of the second level.
In the sequence detection second level in the case where DCI, the search space of n-th of control channel determines in the following way, N-th of control channel is to carry the control channel of n-th of second level DCI:
It is Y in the initial position of the blind Detecting of n-th of control channelnWhen, n-th of control channel is in polymerization grade Search space when L are as follows: Yn+ i, wherein i=0,1 ..., L-1, wherein initial positionLkIt is controlled for kth+1 The polymerization grade of channel processed, the initial position L of the 1st control channel0=0.Wherein, n and L is positive integer.Polymerization grade L is then There can be different numerical value according to relevant criterion, for example, 1,2,4 and 8 etc..
(it can be the front end of PDSCH, or pre- in the region of the transmission second level DCI of terminal-specific (UE specific) The control channel of the second level of the UE specific first configured) method of determination that search space can be provided, for the of user The initial position of n control channel blind Detecting is YnWhen, then n-th of control channel of user is in the search space of its polymerization grade L Are as follows: Yn+i.For example, the polymerization grade of the 1st control channel is L by taking Fig. 2 as an example1The polymerization grade of=4, the 2nd control channel For L2=2, then the initial position of the 2nd control channel detection is Y3=4+2=6, for different polymerization grades 1,2,4,8, Search space is as shown in figure 3, respectively CCE 6, CCE 6~7, CCE 6~9 and CCE 6~13.
The factor of main consideration for designing search space in this way is, specified for current subframe there are when PDSCH transmission Resource is that UE is exclusive, does not need different UE multiplexings, therefore, initial position CCE=0；Or when PDSCH is not present, the Second level is in the exclusive area transmissions of UE and similar consideration.When not needing user's multiplexing, fixed candidate's DCI type, no It needs to attempt between different candidate DCI types, blind examination only needs to consider different polymerization grades；And due to the inspection of all kinds of DCI Survey type sequence and with the presence or absence of be it is known, based on the control channel that front has detected that, just can confirm that and need to examine below The initial position of the control channel of survey, so as to reduce blind examination complexity.
Corresponding with above method, the embodiment of the invention also provides a kind of detection methods of grading control channel, answer For terminal side, as shown in figure 4, this method comprises:
Step 41, at least one first order Downlink Control Information DCI is detected, wherein first order DCI carries DCI type First instruction information.
Here, the DCI type may include the DCI for descending scheduling, be used for uplink scheduling DCI, and, for across At least one of carrier wave scheduling or the DCI across timeslot scheduling etc..
Step 42, according to the first instruction information, at least one second level DCI is detected.
Specifically, the first order DCI can also carry the time-frequency for transmitting the DSCH Downlink Shared Channel of the second level DCI The second indication information of resource, the part in running time-frequency resource that the second level DCI is indicated by the second indication information provide It is transmitted in source.At this point, in above-mentioned steps 41 first order DCI can be detected on down control channel, according to what is detected The second indication information carried in first order DCI determines the running time-frequency resource for carrying the DSCH Downlink Shared Channel of the second level DCI. In above-mentioned steps 42, can according to the first instruction information, carry the DSCH Downlink Shared Channel of the second level DCI when In frequency resource, second level DCI is detected.
Alternatively, the first order DCI can also carry the time-frequency money for transmitting the down control channel of the second level DCI The third in source indicates information.At this point, in above-mentioned steps 41 first order DCI can be detected on down control channel, according to inspection The third instruction information carried in the first order DCI measured, determines the time-frequency for carrying the down control channel of the second level DCI Resource.In above-mentioned steps 42, letter can be controlled in the downlink for transmitting the second level DCI according to the first instruction information On the running time-frequency resource in road, second level DCI is detected.
Or in above-mentioned steps 41, the first order DCI of at least one DCI is detected on down control channel. In above-mentioned steps 42, in the shared second level control channel of the preconfigured terminal-specific or multiple terminals, detection Second level DCI.
In the embodiment of the present invention, the first order DCI can also carry the resource allocation letter of scheduled shared channel Breath.
In the embodiment of the present invention, the first order DCI can also carry the polymerization grade information of second level DCI use And/or modulation coding scheme information.
In the embodiment of the present invention, a first order DCI that the first order DCI can share at least one DCI.
Here, the first instruction information of the DCI type can be with are as follows: the bit map of preset kind template, it is described default Template types include multiple bits, and each bit corresponds to a predetermined DCI type, and when the bit takes When value is the first value, indicate, when the bit value is second value, to indicate there are the corresponding DCI type of the bit There is no the corresponding DCI types of the bit.
In order to reduce detection complexity, the transmission sequence of the second level DCI of each DCI type can be predetermined, In this way, can be believed when detecting second level DCI according to first instruction when detecting the second level DCI in step 42 Breath determines existing DCI type；And the order according to the existing DCI type in the transmission sequence, it determines each The detection ordering of a second level DCI.
Further, in step 42, the search space of second level DCI can also be determined, to further decrease detection Complexity.For example, determining the search space of n-th of control channel, n-th of the control letter when detecting the second level DCI Road is the control channel for carrying n-th of second level DCI, and, corresponding second level DCI is detected in described search space；Its In, it is Y in the initial position of the blind Detecting of n-th of control channelnWhen, n-th of control channel polymerization grade be L when Search space are as follows: Yn+ i, wherein i=0,1 ..., L-1, wherein initial positionLkFor+1 control letter of kth The polymerization grade in road, L0=0；N and L is positive integer.
Above method provides the transmission of grading control channel and detection methods.The embodiment of the invention also provides in realization State the device of method.
Referring to figure 5., the present invention provides a kind of transmitting device of grading control channel, which be can be set in movement The network side of communication system, for example, in base station, as shown in figure 5, the device includes:
Transmission unit 51, for sending at least one first order Downlink Control Information DCI to terminal, and, it sends at least One second level DC；
Wherein, the first order DCI carries the first instruction information of DCI type.
Here, the DCI type includes the DCI for descending scheduling, is used for uplink scheduling DCI, is used for cross-carrier scheduling DCI and at least one for the DCI across timeslot scheduling.
As a kind of implementation, when there is currently the scheduling of DSCH Downlink Shared Channel, the transmission unit includes:
First processing units, for sending at least one first order DCI by down control channel, and,
The second processing unit, for sending at least one second level DCI by down control channel；
Wherein, the first order DCI also carries the second indication information that bearing downlink shares the running time-frequency resource of channel, institute The part resource stated in the running time-frequency resource that second level DCI is indicated by the second indication information is transmitted
As another implementation, when there is currently no the scheduling of DSCH Downlink Shared Channel, the transmission unit includes:
Third processing unit, for sending at least one first order DCI by down control channel, and,
Fourth processing unit, for sending at least one second level DCI by down control channel；
Wherein, the first order DCI also carries the running time-frequency resource for carrying the down control channel of the second level DCI Third indicates information.
As another implementation, the transmission unit includes:
5th processing unit, for sending at least one first order DCI by down control channel, and,
6th processing unit, for being controlled by the shared second level of the preconfigured terminal-specific or multiple terminals Channel sends at least one second level DCI.
Here, the first order DCI also carries the resource allocation information of scheduled shared channel.
In the embodiment of the present invention, the first instruction information are as follows: the bit map of preset kind template, the preset kind Template includes multiple bits, and each bit corresponds to a predetermined DCI type, and when the bit value is When the first value, indicate that, there are the corresponding DCI type of the bit, when the bit value is second value, expression is not deposited In the corresponding DCI type of the bit.
In the embodiment of the present invention, the transmission sequence of the second level DCI of each DCI type can be predetermined, described Transmission unit, according to the transmission sequence, successively sends at least one described second level when sending at least one second level DCI DCI。。
In the embodiment of the present invention, the first order DCI also carry the second level DCI use polymerization grade information and/or Modulation coding scheme information.
In the embodiment of the present invention, the transmission unit can determine that the search of n-th of control channel is empty in the following way Between, n-th of control channel is to carry the control channel of n-th of second level DCI:
It is Y in the initial position of the blind Detecting of n-th of control channelnWhen, n-th of control channel is in polymerization grade Search space when L are as follows: Yn+ i, wherein i=0,1 ..., L-1, wherein initial positionLkIt is controlled for kth+1 The polymerization grade of channel processed, L0=0；
Wherein, n and L is positive integer.
Here, the first order DCI can be the DCI that at least one DCI is shared.
Fig. 6 is please referred to, the embodiment of the invention also provides the structure chart of a kind of electronic equipment, which can be net Network side apparatus, such as base station.The electronic equipment includes: processor 600；It is connected by bus interface with the processor 600 Memory 620, and the transceiver 610 being connected by bus interface with processor 600；The memory 620 is for storing The processor used program and data when executing operation；Data information is sent by the transceiver 610 or is led Frequently, uplink control channel is also received by the transceiver 610；When processor 600 calls and executes institute in the memory 620 The program and data of storage, specifically,
Processor 600 is used to read the program in memory 620, is specifically used for executing following functions: be sent to terminal A few first order Downlink Control Information DCI, and, send at least one second level DCI；Wherein, the first order DCI is carried There is the first instruction information of DCI type.
Transceiver 610, for sending and receiving data under the control of processor 600.
Wherein, in Fig. 6, bus architecture may include the bus and bridge of any number of interconnection, specifically by processor 600 The various circuits for the memory that the one or more processors and memory 620 of representative represent link together.Bus architecture is also Various other circuits of such as peripheral equipment, voltage-stablizer and management circuit or the like can be linked together, these are all It is it is known in the art, therefore, it will not be further described herein.Bus interface provides interface.Transceiver 610 can To be multiple element, that is, includes transmitter and transceiver, the list for communicating over a transmission medium with various other devices is provided Member.Processor 600, which is responsible for management bus architecture and common processing, memory 620, can store processor 600 and is executing operation When used data.
Here, the DCI type includes the DCI for descending scheduling, is used for uplink scheduling DCI, is used for cross-carrier scheduling DCI and at least one for the DCI across timeslot scheduling.
Specifically, processor 600 can be also used for controlling when there is currently the scheduling of DSCH Downlink Shared Channel by downlink Channel sends at least one first order DCI, and, at least one second level DCI is sent by down control channel；Wherein, institute It states first order DCI and also carries the second indication information that bearing downlink shares the running time-frequency resource of channel, the second level DCI passes through Part resource in the running time-frequency resource of the second indication information instruction is transmitted.
Specifically, processor 600 can be also used for passing through downlink control when there is currently no the scheduling of DSCH Downlink Shared Channel Channel processed sends at least one first order DCI, and, at least one second level DCI is sent by down control channel；Wherein, The first order DCI also carries the third instruction information for carrying the running time-frequency resource of down control channel of the second level DCI.
Specifically, processor 600 can be also used for passing through downlink control when there is currently no the scheduling of DSCH Downlink Shared Channel Channel processed sends at least one first order DCI, and, by the preconfigured terminal-specific or multiple terminals it is shared the Two-stage control channel sends at least one second level DCI.
Here, the first order DCI can also carry the resource allocation information of scheduled shared channel.
Here, the first instruction information are as follows: the bit map of preset kind template, the preset kind template include more A bit, each bit correspond to a predetermined DCI type, and when the bit value is the first value, There are the corresponding DCI types of the bit for expression, when the bit value is second value, indicate that the bit is not present The corresponding DCI type in position.
Here, the transmission sequence of the second level DCI of each DCI type is predetermined, and processor 600 is described in the transmission When the DCI of the second level, at least one second level DCI can successively be sent according to the transmission sequence.
Here, the first order DCI also carries polymerization grade information and/or the modulating-coding side of second level DCI use Formula information.
Here, processor 600 can also determine the search space of n-th of control channel in the following way, described n-th Control channel is to carry the control channel of n-th of second level DCI:
It is Y in the initial position of the blind Detecting of n-th of control channelnWhen, n-th of control channel is in polymerization grade Search space when L are as follows: Yn+ i, wherein i=0,1 ..., L-1, wherein initial positionLkIt is controlled for kth+1 The polymerization grade of channel processed, L0=0；Wherein, n and L is positive integer.
Here, the first order DCI can be the DCI that at least one DCI is shared.
Fig. 7 is please referred to, the embodiment of the invention provides a kind of detection device of grading control channel, which be can be set In terminal side, as shown in fig. 7, the device includes:
First detection unit 71, for detecting at least one first order Downlink Control Information DCI, wherein first order DCI takes The first instruction information with DCI type；
Second detection unit 72, for detecting at least one second level DCI according to the first instruction information.
Here, the DCI type is used for the DCI of descending scheduling, is used for uplink scheduling DCI, the DCI for cross-carrier scheduling With at least one for the DCI across timeslot scheduling.
As a kind of implementation, the first order DCI also carries that bearing downlink shares the running time-frequency resource of channel Two instruction information, the part resource in running time-frequency resource that the second level DCI is indicated by the second indication information are passed It is defeated；The first detection unit is specifically used for detecting first order DCI on down control channel, according to the first order detected The second indication information carried in DCI determines the running time-frequency resource for carrying the DSCH Downlink Shared Channel of the second level DCI；Described Two detection units, are specifically used for according to the first instruction information, carry the DSCH Downlink Shared Channel of the second level DCI when In frequency resource, second level DCI is detected.
As another implementation, the first order DCI also carries the downlink control letter for transmitting the second level DCI The third of the running time-frequency resource in road indicates information；The first detection unit, specifically for detecting first on down control channel Grade DCI indicates information according to the third carried in the first order DCI detected, determines the downlink control for carrying the second level DCI The running time-frequency resource of channel processed；The second detection unit is specifically used for according to the first instruction information, in transmission described second On the running time-frequency resource of the down control channel of grade DCI, second level DCI is detected.
As another implementation, the first detection unit is specifically used on down control channel described in detection The first order DCI of at least one DCI；The second detection unit, be specifically used in the preconfigured terminal-specific or In the shared second level control channel in multiple terminals, second level DCI is detected.
Here, the first order DCI also carries the resource allocation information of scheduled shared channel.
Here, the first instruction information are as follows: the bit map of preset kind template, the preset kind template include more A bit, each bit correspond to a predetermined DCI type, and when the bit value is the first value, There are the corresponding DCI types of the bit for expression, when the bit value is second value, indicate that the bit is not present The corresponding DCI type in position.
Here, the transmission sequence of the second level DCI of each DCI type can be predetermined, and second detection is single Member, according to the first instruction information, determines existing DCI type when detecting second level DCI；And according to the presence Order of the DCI type in the transmission sequence, determine the detection ordering of each second level DCI.
Here, the first order DCI can also carry the polymerization grade information of second level DCI use and/or modulation is compiled Code mode information.
Here, the second detection unit can determine n-th when detecting the second level DCI of at least one DCI The search space of a control channel, n-th of control channel are the control channel of n-th of second level DCI of carrying, and, Corresponding second level DCI is detected in described search space；
It wherein, is Y in the initial position of the blind Detecting of n-th of control channelnWhen, n-th of control channel is polymerizeing Search space when grade is L are as follows: Yn+ i, wherein i=0,1 ..., L-1, wherein initial positionLkFor kth The polymerization grade of+1 control channel, L0=0；Wherein, n and L is positive integer.
Here, the first order DCI can be the DCI that at least one DCI is shared.
Please refer to Fig. 8, Fig. 8 is the structure chart of a kind of electronic equipment provided in an embodiment of the present invention, which can be with For terminal, as shown in figure 8, the equipment includes: at least one processor 801, memory 802,804 and of at least one network interface User interface 803.Various components in terminal are coupled by bus system 805.It is understood that bus system 805 is used for Realize the connection communication between these components.Bus system 805 further includes power bus, control in addition to including data/address bus Bus and status signal bus in addition.But for the sake of clear explanation, various buses are all designated as bus system 805 in fig. 8.
Wherein, user interface 803 may include display, keyboard or pointing device (for example, mouse, trace ball (track ball), touch-sensitive plate or touch screen etc..
It is appreciated that the memory 802 in the embodiment of the present invention can be volatile memory or nonvolatile memory, It or may include both volatile and non-volatile memories.Wherein, nonvolatile memory can be read-only memory (Read- Only Memory, ROM), programmable read only memory (Programmable ROM, PROM), the read-only storage of erasable programmable Device (Erasable P ROM, EPROM), electrically erasable programmable read-only memory (Electrically EP ROM, EEPROM) Or flash memory.Volatile memory can be random access memory (Random Access Memory, RAM), be used as outside Cache.By exemplary but be not restricted explanation, the RAM of many forms is available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (Synchronous D RAM, SDRAM), double data speed synchronous dynamic RAM (Double Data Rate SD RAM, DDRSDRAM), enhanced Synchronous Dynamic Random Access Memory (Enhanced SD RAM, ESDRAM), synchronous connect Connect dynamic random access memory (Synch link D RAM, SLDRAM) and direct rambus random access memory (Direct Rambus RAM, DRRAM).The memory 802 of system and method described herein is intended to include but is not limited to these With the memory of any other suitable type.
In some embodiments, memory 802 stores following element, executable modules or data structures, or Their subset of person or their superset: operating system 8021 and application program 8022.
Wherein, operating system 8021 include various system programs, such as ccf layer, core library layer, driving layer etc., are used for Realize various basic businesses and the hardware based task of processing.Application program 8022 includes various application programs, such as media Player (Media Player), browser (Browser) etc., for realizing various applied business.Realize the embodiment of the present invention The program of method may be embodied in application program 8022.
In embodiments of the present invention, by the program or instruction of calling memory 802 to store, specifically, can be application The program or instruction stored in program 8022, processor 801 are used for: at least one first order Downlink Control Information DCI is detected, In, first order DCI carries the first instruction information of DCI type；According to it is described first instruction information, detect at least one second Grade DCI.
Optionally, the DCI type is used for the DCI of descending scheduling, uplink scheduling DCI is used for, for cross-carrier scheduling DCI and at least one for the DCI across timeslot scheduling.
Optionally, the first order DCI also carries the running time-frequency resource for transmitting the DSCH Downlink Shared Channel of the second level DCI Second indication information, the part resource in running time-frequency resource that the second level DCI is indicated by the second indication information into Row transmission；Processor 801 is also used to: first order DCI is detected on down control channel, according in the first order DCI detected The second indication information of carrying determines the running time-frequency resource for carrying the DSCH Downlink Shared Channel of the second level DCI；According to described first It indicates information, on the running time-frequency resource of DSCH Downlink Shared Channel for carrying the second level DCI, detects second level DCI.
Optionally, the first order DCI also carries the running time-frequency resource for transmitting the down control channel of the second level DCI Third indicate information；Processor 801 is also used to: first order DCI is detected on down control channel, according to first detected The third instruction information carried in grade DCI, determines the running time-frequency resource for carrying the down control channel of the second level DCI；According to The first instruction information detects second level DCI on the running time-frequency resource of down control channel for transmitting the second level DCI.
Optionally, processor 801 is also used to: the first order of at least one DCI is detected on down control channel DCI；In the shared second level control channel of the preconfigured terminal-specific or multiple terminals, second level DCI is detected.
Optionally, the first order DCI can also carry the resource allocation information of scheduled shared channel.
Optionally, the first instruction information are as follows: the bit map of preset kind template, the preset kind template include Multiple bits, each bit correspond to a predetermined DCI type, and when the bit value is the first value When, it indicates there are the corresponding DCI type of the bit, when the bit value is second value, indicates that there is no described The corresponding DCI type of bit.
Optionally, the transmission sequence of the second level DCI of each DCI type is predetermined, and processor 801 is also used to: When detecting second level DCI, according to the first instruction information, existing DCI type is determined；And according to described existing Order of the DCI type in the transmission sequence, determines the detection ordering of each second level DCI.
Optionally, the first order DCI also carries the polymerization grade information and/or modulating-coding of second level DCI use Mode information.
Optionally, processor 801 is also used to: when detecting the second level DCI of at least one DCI, determining n-th of control The search space of channel processed, n-th of control channel are the control channel of n-th of second level DCI of carrying, and, described Corresponding second level DCI is detected in search space；It wherein, is Y in the initial position of the blind Detecting of n-th of control channeln When, search space of n-th of control channel when polymerization grade is L are as follows: Yn+ i, wherein i=0,1 ..., L-1, wherein starting PositionLkFor the polymerization grade of+1 control channel of kth, L0=0；Wherein, n and L is positive integer.
Optionally, the DCI that the first order DCI shares at least one DCI.The DCI type can be the second level The type of DCI.
Fig. 9 is please referred to, the embodiment of the invention also provides a kind of transmission methods of grading control channel, are applied to network Side, this method comprises:
Step 91, at least one first order DCI is sent to terminal.
Step 92, at least one second level DCI is sent；Wherein, at least one second level DCI includes at least one The DCI of DCI type, and the transmission sequence of the second level DCI of each DCI type is predetermined.
Here, the DCI type may include the DCI for descending scheduling, be used for uplink scheduling DCI, for cross-carrier The DCI of scheduling and at least one for the DCI across timeslot scheduling.Above-mentioned transmission sequence can be by making an appointment or semi-static The mode of notice informs UE, prenotices for example, network configures message by system information (SIB, MIB) or RRC to terminal.
Here, the search space of n-th of control channel determines in the following way, and n-th of control channel is carrying The control channel of n-th of second level DCI:
It is Y in the initial position of the blind Detecting of n-th of control channelnWhen, n-th of control channel is in polymerization grade Search space when L are as follows: Yn+ i, wherein i=0,1 ..., L-1, wherein initial positionLkIt is controlled for kth+1 The polymerization grade of channel processed, L0=0；
Wherein, n and L is positive integer.
Here, the first order DCI can also carry the first instruction information of the DCI type of at least one DCI. The mode for sending the first DCI and the 2nd DCI can be with reference to above:
For example, network can be sent at least by down control channel when there is currently the scheduling of DSCH Downlink Shared Channel One first order DCI, and, at least one second level DCI is sent by down control channel；Wherein, the first order DCI is also The second indication information that bearing downlink shares the running time-frequency resource of channel is carried, the second level DCI is indicated by described second Part resource in the running time-frequency resource of information instruction is transmitted.As can be seen that carry the resource of second level DCI at this time is originally The resource of PDSCH, at this time by the transfer resource as PDCCH.
When there is currently no the scheduling of DSCH Downlink Shared Channel, network can send at least one by down control channel First order DCI, and, at least one second level DCI is sent by down control channel；Wherein, the first order DCI is also carried There is the third instruction information of the running time-frequency resource for the down control channel for carrying the second level DCI.
When there is currently no the scheduling of downlink traffic channel, first order DCI and can also be sent in the following way Second level DCI: network side sends at least one first order DCI by down control channel, and, pass through the preconfigured end The second level control channel for holding dedicated or multiple terminals shared sends at least one second level DCI.At this point, described first Grade DCI also carries the resource allocation information of scheduled shared channel, such as the resource point of the PUSCH distributed in UL grant With information etc..
Figure 10 is please referred to, the embodiment of the invention also provides a kind of detection methods of grading control channel, are applied to terminal Side, this method comprises:
Step 101, at least one first order DCI is detected, wherein at least one first order DCI corresponds at least one Kind DCI type, and the transmission sequence of the second level DCI of each DCI type is predetermined.
Step 102, according to the transmission of the second level DCI of predetermined each DCI type sequence, each second level is determined The detection ordering of DCI, and, according to the detection ordering, detect second level DCI.
Here, when detecting second level DCI, it can also in the following way, determine that the search of n-th of control channel is empty Between, n-th of control channel is to carry the control channel of n-th of second level DCI:
It is Y in the initial position of the blind Detecting of n-th of control channelnWhen, n-th of control channel is in polymerization grade Search space when L are as follows: Yn+ i, wherein i=0,1 ..., L-1, wherein initial positionLkIt is controlled for kth+1 The polymerization grade of channel processed, L0=0；Wherein, n and L is positive integer.
Here, the first order DCI can also carry the instruction information of DCI type.
Here, the first order DCI can also carry the time-frequency money for transmitting the DSCH Downlink Shared Channel of the second level DCI The second indication information in source.At this point, first order DCI is detected on down control channel, according to detection in above-mentioned steps 101 To first order DCI in the second indication information that carries, determine the time-frequency money for carrying the DSCH Downlink Shared Channel of the second level DCI Source.It, can be according to the first instruction information, in the DSCH Downlink Shared Channel for carrying the second level DCI in above-mentioned steps 102 Running time-frequency resource on, detect second level DCI.
Alternatively, the first order DCI also carries the running time-frequency resource for transmitting the down control channel of the second level DCI Third indicates information.At this point, in above-mentioned steps 101 first order DCI can be detected on down control channel, according to detection To first order DCI in the third that carries indicate information, determine the time-frequency money for carrying the down control channel of the second level DCI Source.It, can be according to the first instruction information, in the down control channel for transmitting the second level DCI in above-mentioned steps 102 Running time-frequency resource on, detect second level DCI.
Or in above-mentioned steps 101, the first order of at least one DCI is detected on down control channel DCI.In above-mentioned steps 102, in the shared second level control channel of the preconfigured terminal-specific or multiple terminals, Detect second level DCI.
The embodiment of the invention also provides the devices for implementing the above method.Figure 11 is please referred to, the embodiment of the invention provides A kind of transmitting device of grading control channel, comprising:
Transmission unit 111, for sending at least one first order DCI to terminal, and, send at least one second level DCI；Wherein, at least one second level DCI includes the DCI of at least one DCI type, and the second level of each DCI type The transmission sequence of DCI is predetermined.
Here, the DCI type may include the DCI for descending scheduling, be used for uplink scheduling DCI, for cross-carrier The DCI of scheduling and at least one for the DCI across timeslot scheduling.
Here, the transmission unit, can determine the search space of n-th of control channel in the following way, described n-th A control channel is to carry the control channel of n-th of second level DCI:
It is Y in the initial position of the blind Detecting of n-th of control channelnWhen, n-th of control channel is in polymerization grade Search space when L are as follows: Yn+ i, wherein i=0,1 ..., L-1, wherein initial positionLkIt is controlled for kth+1 The polymerization grade of channel processed, L0=0；Wherein, n and L is positive integer.
As a kind of implementation, when there is currently the scheduling of DSCH Downlink Shared Channel, the transmission unit includes:
First processing units, for sending at least one first order DCI by down control channel, and,
The second processing unit sends at least one second level DCI by down control channel；
Wherein, the first order DCI also carries the second indication information that bearing downlink shares the running time-frequency resource of channel, institute The part resource stated in the running time-frequency resource that second level DCI is indicated by the second indication information is transmitted.
As another implementation, when there is currently no the scheduling of DSCH Downlink Shared Channel, the transmission unit includes:
Third processing unit, for sending at least one first order DCI by down control channel, and,
Fourth processing unit, for sending at least one second level DCI by down control channel；
Wherein, the first order DCI also carries the running time-frequency resource for carrying the down control channel of the second level DCI Third indicates information.
As another implementation, when there is currently no the scheduling of DSCH Downlink Shared Channel, the transmission unit includes:
5th processing unit, for sending at least one first order DCI by down control channel, and,
6th processing unit, for being controlled by the shared second level of the preconfigured terminal-specific or multiple terminals Channel sends at least one second level DCI.
Here, at this point, the first order DCI also carries the resource allocation information of scheduled shared channel, such as UL The resource allocation information etc. of the PUSCH distributed in grant.
In the embodiment of the present invention, the first order DCI can carry the first instruction information of DCI type.Specifically, institute Stating the first instruction information can be with are as follows: the bit map of preset kind template, the preset kind template include multiple bits, often A bit corresponds to a predetermined DCI type, and when the bit value is the first value, indicates described in presence The corresponding DCI type of bit when the bit value is second value indicates that the corresponding DCI of the bit is not present Type.
Figure 12 is please referred to, the embodiment of the invention provides a kind of detection devices of grading control channel, comprising:
First detection unit 121, for detecting at least one first order DCI, wherein at least one first order DCI Transmission sequence corresponding at least one DCI type, and the second level DCI of each DCI type is predetermined；
Second detection unit 122, for the transmission sequence according to the second level DCI of predetermined each DCI type, really The detection ordering of fixed each second level DCI, and, according to the detection ordering, detect second level DCI.
Here, second detection unit in the following way, determines n-th of control channel when detecting second level DCI Search space, n-th of control channel are to carry the control channel of n-th of second level DCI: in n-th of control channel Blind Detecting initial position be YnWhen, search space of n-th of control channel when polymerization grade is L are as follows: Yn+ i, wherein i= 0,1 ..., L-1, wherein initial positionLkFor the polymerization grade of+1 control channel of kth, L0=0；Wherein, N and L is positive integer.
As a kind of implementation, the first order DCI also carries the DSCH Downlink Shared Channel for transmitting the second level DCI Running time-frequency resource second indication information；The first detection unit, specifically for detecting the first order on down control channel DCI determines that the downlink for carrying the second level DCI is shared according to the second indication information carried in the first order DCI detected The running time-frequency resource of channel；The second detection unit is specifically used for carrying the second level according to the first instruction information On the running time-frequency resource of the DSCH Downlink Shared Channel of DCI, second level DCI is detected.
As another implementation, the first order DCI also carries the downlink control letter for transmitting the second level DCI The third of the running time-frequency resource in road indicates information；The first detection unit, specifically for detecting first on down control channel Grade DCI indicates information according to the third carried in the first order DCI detected, determines the downlink control for carrying the second level DCI The running time-frequency resource of channel processed；The second detection unit is specifically used for according to the first instruction information, in transmission described second On the running time-frequency resource of the down control channel of grade DCI, second level DCI is detected.
As another implementation, the first detection unit is specifically used on down control channel described in detection The first order DCI of at least one DCI；The second detection unit, be specifically used in the preconfigured terminal-specific or In the shared second level control channel in multiple terminals, second level DCI is detected.
Here, the first order DCI some or all of also carries at least one described DCI the resource allocation of DCI Information.
Here, the first instruction information of the DCI type are as follows: the bit map of preset kind template, the preset kind Template includes multiple bits, and each bit corresponds to a predetermined DCI type, and when the bit value is When the first value, indicate that, there are the corresponding DCI type of the bit, when the bit value is second value, expression is not deposited In the corresponding DCI type of the bit.
The embodiment of the present invention also provides a kind of computer readable storage medium, is stored thereon with computer program, the meter Calculation machine program realizes the step in method provided by any one above-mentioned embodiment of the method when being executed by processor.
To sum up, the embodiment of the present invention can be indicated by increasing DCI type indication information in the first order of two-stage DCI The type of the DCI of current transmission out, to simplify the detection complexity of terminal side.In addition, the detection ordering of the DCI of the second level can also Be notice or it is preset, further, the embodiment of the present invention gives the design of search space, further letter The detection processing of terminal side is changed.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually It is implemented in hardware or software, the specific application and design constraint depending on technical solution.Professional technician Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed The scope of the present invention.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description, The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In embodiment provided herein, it should be understood that disclosed device and method can pass through others Mode is realized.For example, the apparatus embodiments described above are merely exemplary, for example, the division of the unit, only A kind of logical function partition, there may be another division manner in actual implementation, for example, multiple units or components can combine or Person is desirably integrated into another system, or some features can be ignored or not executed.Another point, shown or discussed is mutual Between coupling, direct-coupling or communication connection can be through some interfaces, the INDIRECT COUPLING or communication link of device or unit It connects, can be electrical property, mechanical or other forms.
The unit as illustrated by the separation member may or may not be physically separated, aobvious as unit The component shown may or may not be physical unit, it can and it is in one place, or may be distributed over multiple In network unit.Some or all of unit therein can be selected to realize the embodiment of the present invention according to the actual needs Purpose.
It, can also be in addition, the functional units in various embodiments of the present invention may be integrated into one processing unit It is that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention. And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, ROM, RAM, magnetic or disk etc. are various can store program code Medium.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.

Claims (23)

1. a kind of transmission method of grading control channel characterized by comprising
At least one first order Downlink Control Information DCI is sent to terminal, and, send at least one second level DCI；
Wherein, the first order DCI carries the first instruction information of DCI type.
2. being used the method according to claim 1, wherein the DCI type includes the DCI for descending scheduling In uplink scheduling DCI, the DCI for cross-carrier scheduling and at least one for the DCI across timeslot scheduling.
3. described the method according to claim 1, wherein when there is currently the scheduling of DSCH Downlink Shared Channel At least one first order Downlink Control Information DCI is sent to terminal, and, the step of sending at least one second level DCI, packet It includes:
At least one first order DCI is sent by down control channel, and,
At least one second level DCI is sent by down control channel；
Wherein, the first order DCI also carries the second indication information that bearing downlink shares the running time-frequency resource of channel, and described the The part resource in running time-frequency resource that second level DCI is indicated by the second indication information is transmitted.
4. the method according to claim 1, wherein when there is currently no the scheduling of DSCH Downlink Shared Channel, institute It states to terminal and sends at least one first order Downlink Control Information DCI, and, the step of sending at least one second level DCI, packet It includes:
At least one first order DCI is sent by down control channel, and,
At least one second level DCI is sent by down control channel；
Wherein, the first order DCI also carries the third for carrying the running time-frequency resource of down control channel of the second level DCI Indicate information.
5. the method according to claim 1, wherein when there is currently no the scheduling of DSCH Downlink Shared Channel, institute It states to terminal and sends at least one first order Downlink Control Information DCI, and, the step of sending at least one second level DCI, packet It includes:
At least one first order DCI is sent by down control channel, and,
By the shared second level control channel in the preconfigured terminal-specific or multiple terminals, send it is described at least one Second level DCI.
6. according to the method described in claim 5, it is characterized in that, the first order DCI also carries scheduled shared letter The resource allocation information in road.
7. the method according to claim 1, wherein
The first instruction information are as follows: the bit map of preset kind template, the preset kind template include multiple bits, Each bit corresponds to a predetermined DCI type, and when the bit value is the first value, indicates that there are institutes The corresponding DCI type of bit is stated, when the bit value is second value, indicates that there is no the bit is corresponding DCI type.
8. the method according to claim 1, wherein the transmission sequence of the second level DCI of each DCI type is pre- First determine, when sending at least one second level DCI, according to transmission sequence, successively send described at least one second Grade DCI.
9. method according to claim 1 or 8, which is characterized in that the first order DCI also carries second level DCI and adopts Polymerization grade information and/or modulation coding scheme information.
10. method according to claim 1 or 8, which is characterized in that the search space of n-th of control channel is according to following Mode determines that n-th of control channel is to carry the control channel of n-th of second level DCI:
It is Y in the initial position of the blind Detecting of n-th of control channelnWhen, n-th of control channel polymerization grade be L when Search space are as follows: Yn+ i, wherein i=0,1 ..., L-1, wherein initial positionLkFor+1 control letter of kth The polymerization grade in road, L0=0；
Wherein, n and L is positive integer.
11. a kind of detection method of grading control channel characterized by comprising
Detect at least one first order Downlink Control Information DCI, wherein first order DCI carries the first instruction letter of DCI type Breath；
According to the first instruction information, at least one second level DCI is detected.
12. according to the method for claim 11, which is characterized in that the DCI type includes the DCI for descending scheduling, For uplink scheduling DCI, the DCI for cross-carrier scheduling and at least one for the DCI across timeslot scheduling.
13. according to the method for claim 11, which is characterized in that the first order DCI also carries transmission described second The second indication information of the running time-frequency resource of the DSCH Downlink Shared Channel of grade DCI, the second level DCI pass through the second indication information Part resource in the running time-frequency resource of instruction is transmitted；
The step of detecting at least one first order DCI, comprising: first order DCI is detected on down control channel, according to detecting First order DCI in the second indication information that carries, determine the time-frequency money for carrying the DSCH Downlink Shared Channel of the second level DCI Source；
It is described according to the first instruction information, the step of detecting at least one second level DCI, comprising: refer to according to described first Show information, on the running time-frequency resource of DSCH Downlink Shared Channel for carrying the second level DCI, detects second level DCI.
14. according to the method for claim 11, which is characterized in that the first order DCI also carries transmission described second The third of the running time-frequency resource of the down control channel of grade DCI indicates information；
The step of detecting at least one first order DCI, comprising: first order DCI is detected on down control channel, according to detecting First order DCI in the third instruction information that carries, determine the time-frequency money for carrying the down control channel of the second level DCI Source；
It is described according to the first instruction information, the step of detecting at least one second level DCI, comprising: refer to according to described first Show information, on the running time-frequency resource of down control channel for transmitting the second level DCI, detects second level DCI.
15. according to the method for claim 11, which is characterized in that
The step of detecting at least one first order DCI, comprising: the of at least one DCI is detected on down control channel Level-one DCI；
It is described according to the first instruction information, the step of detecting at least one second level DCI, comprising: in preconfigured institute It states in the shared second level control channel in terminal-specific or multiple terminals, detects second level DCI.
16. according to the method for claim 15, which is characterized in that the first order DCI also carries scheduled share The resource allocation information of channel.
17. according to the method for claim 11, which is characterized in that
The first instruction information are as follows: the bit map of preset kind template, the preset kind template include multiple bits, Each bit corresponds to a predetermined DCI type, and when the bit value is the first value, indicates that there are institutes The corresponding DCI type of bit is stated, when the bit value is second value, indicates that there is no the bit is corresponding DCI type.
18. according to the method for claim 11, which is characterized in that the transmission of the second level DCI of each DCI type sequence is It is predetermined, when detecting second level DCI, according to the first instruction information, determine existing DCI type；And according to The existing order of the DCI type in the transmission sequence, determines the detection ordering of each second level DCI.
19. method described in 1 or 18 according to claim 1, which is characterized in that the first order DCI also carries second level DCI The polymerization grade information and/or modulation coding scheme information of use.
20. method described in 1 or 18 according to claim 1, which is characterized in that when detecting second level DCI, determine n-th of control The search space of channel processed, n-th of control channel are the control channel of n-th of second level DCI of carrying, and, described Corresponding second level DCI is detected in search space；
It wherein, is Y in the initial position of the blind Detecting of n-th of control channelnWhen, n-th of control channel is in polymerization grade Search space when L are as follows: Yn+ i, wherein i=0,1 ..., L-1, wherein initial positionLkIt is controlled for kth+1 The polymerization grade of channel processed, L0=0；
Wherein, n and L is positive integer.
21. a kind of transmitting device of grading control channel characterized by comprising
Transmission unit, for sending at least one first order Downlink Control Information DCI to terminal, and, send at least one Second level DC；
Wherein, the first order DCI carries the first instruction information of DCI type.
22. a kind of detection device of grading control channel characterized by comprising
First detection unit, for detecting at least one first order Downlink Control Information DCI, wherein first order DCI is carried First instruction information of DCI type；
Second detection unit, for detecting at least one second level DCI according to the first instruction information.
23. a kind of electronic equipment, comprising:
One or more processors；
Memory；And
One or more programs, wherein one or more of programs are stored in the memory, and be configured to by One or more of processors execute, which is characterized in that described program is performed realization any one of claims 1 to 20 Step in the method.
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