CN108574989A - A kind of Physical Downlink Control Channel method of sending and receiving and relevant device - Google Patents
A kind of Physical Downlink Control Channel method of sending and receiving and relevant device Download PDFInfo
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- CN108574989A CN108574989A CN201710150083.6A CN201710150083A CN108574989A CN 108574989 A CN108574989 A CN 108574989A CN 201710150083 A CN201710150083 A CN 201710150083A CN 108574989 A CN108574989 A CN 108574989A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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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
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
- H04W72/121—Wireless traffic scheduling for groups of terminals or users
Abstract
The embodiment of the invention discloses a kind of method of sending and receiving of Physical Downlink Control Channel and relevant devices, including：Generation includes the current subframe of physical downlink control channel PDCCH, and the PDCCH includes public control resource set and at least one user class control resource set, and the public control resource set is for carrying user group control information；The user group control information is used to indicate the running time-frequency resource position of the user equipment that each user group includes and the corresponding user class control resource set of the user group；The user class control resource set is used to carry the Downlink Control Information of user equipment in the corresponding user group；The current subframe is sent to the user equipment.Using the embodiment of the present invention, blind examination range can be reduced to reduce blind examination number, reduce system delay.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of Physical Downlink Control Channel method of sending and receiving and
Relevant device.
Background technology
With the commercialization of fourth generation mobile communication technology and the sustainable growth of mobile service, had begun in world wide
Research work for the 5th generation communication technology (5G).5G is a kind of communication technology of multi-technical fusion, more by technology
Repeatedly and innovate to meet the needs of extensive data, connection business.3GPP(3rd Generation Partnership
Project, third generation partner program) set up the SI (Study Item, research project) for newly eating dishes without rice or wine to study about 5G, root
The 5G of division according to to(for) vertical scene, 3GPP mainly carry out the research of new technology of eating dishes without rice or wine in terms of three：eMBB(Enhanced
Mobile Broadband, enhanced wireless broadband), URLLC (Ultra-reliable Low-latency
Communications, low time delay high reliable communication) and mMTC (Massive Machine Type Communications, greatly
Scale machine type communication).Based on above-mentioned several application scenarios, research current 3GPP include initial access, channel coding,
MIMO (Multiple-Input Multiple-Out-put, multiple-input and multiple-output), scheduling and HARQ (Hybrid
Automatic Repeat re Quest, hybrid automatic repeat-request), flexibly duplex and interference eliminate etc. several aspects.
In the down control channel design aspect newly eated dishes without rice or wine, there is presently no perfect designs.Existing downlink control letter
Road includes public search space and user's dedicated search space, and the user equipment of current subframe scheduling need to be searched entire user is special
Rope space carries out blind examination, and the number of user equipment blind examination is more, up to 44 times, therefore can bring larger system delay.
Invention content
A kind of Physical Downlink Control Channel method of sending and receiving of offer of the embodiment of the present invention and relevant device, can solve
The certainly big problem of prior art user equipment blind examination range.
First aspect present invention provides a kind of sending method of Physical Downlink Control Channel, including：
Generate include physical downlink control channel PDCCH current subframe, the PDCCH include public control resource set with
And at least one user class controls resource set, the public control resource set is for carrying user group control information；The user
Group control information is used to indicate the user equipment and the corresponding user class control of the user group that each user group includes
The running time-frequency resource position of resource set processed；The user class control resource set is for carrying user equipment in the corresponding user group
Downlink Control Information；
The current subframe is sent to the user equipment.
Correspondingly, second aspect of the present invention provides a kind of method of reseptance of Physical Downlink Control Channel, including：
User group is received in the public control resource set of the physical downlink control channel PDCCH for the current subframe that base station is sent
Control information；The user group control information is used to indicate the user equipment that each user group includes and the user group is corresponding
User class controls the running time-frequency resource position of resource set；
The instruction that information is controlled according to the user group carries out blind examination to obtain in the corresponding user class control resource set
Obtain Downlink Control Information.
Correspondingly, third aspect present invention provides a kind of base station, including：
Processing unit, for generates include physical downlink control channel PDCCH current subframe, the PDCCH is including public
Resource set is controlled altogether and at least one user class controls resource set, and the public control resource set is for carrying user group control
Information；The user group control information is used to indicate the user equipment that each user group includes and the user group is corresponding
The running time-frequency resource position of the user class control resource set；The user class control resource set is for carrying the corresponding user
The Downlink Control Information of user equipment in group；
Transmission unit, for sending the current subframe to the user equipment.
Correspondingly, fourth aspect present invention provides a kind of user equipment, including：
Receiving unit, the public control money of the physical downlink control channel PDCCH of the current subframe for being sent in base station
Source collection receives user group and controls information；User group control information be used to indicate the user equipment that each user group includes and
The running time-frequency resource position of the corresponding user class control resource set of the user group；
Processing unit, the instruction for controlling information according to the user group control resource in the corresponding user class
Collection carries out blind examination to obtain Downlink Control Information.
Implement the embodiment of the present invention, base station firstly generates the current subframe including physical downlink control channel PDCCH, described
PDCCH includes public control resource set and at least one user class control resource set, and the public control resource set is for holding
It carries user group and controls information；The user group control information is used to indicate the user equipment that each user group includes and should
The running time-frequency resource position of the corresponding user class control resource set of user group；The user class control resource set is for carrying pair
The Downlink Control Information of user equipment in the user group answered；Then the current subframe is sent to the user equipment, is made
Blind examination can be carried out in the user class of instruction control resource set by obtaining user equipment, to reduce blind examination range to reduce blind examination time
Number reduces system delay.
Description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are some embodiments of the invention, for this field
For those of ordinary skill, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is a kind of flow diagram of the sending method for Physical Downlink Control Channel that the embodiment of the present invention proposes；
Fig. 2 is a kind of structural schematic diagram of subframe provided in an embodiment of the present invention；
Fig. 3 is a kind of instruction schematic diagram of user group control information provided in an embodiment of the present invention；
Fig. 4 is a kind of instruction schematic diagram for user group control information that another embodiment of the present invention provides；
Fig. 5 is a kind of schematic diagram of user's control channel aggregation grade provided in an embodiment of the present invention；
Fig. 6 is a kind of flow diagram of the method for reseptance of Physical Downlink Control Channel provided in an embodiment of the present invention；
Fig. 7 is the schematic diagram of the control channel candidate of control channel search space provided in an embodiment of the present invention a kind of；
Fig. 8 is a kind of structural schematic diagram of base station provided in an embodiment of the present invention；
Fig. 9 is a kind of structural schematic diagram of user equipment provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained without creative efforts
Example, shall fall within the protection scope of the present invention.
Various aspects are described herein in conjunction with user equipment (UE) and/or base station.User equipment can refer to providing to use
The voice at family and/or the equipment of data connection.User equipment may be connected to such as laptop computer or desktop computer
Deng computing device or its can be personal digital assistant (PDA) etc. autonomous device.User equipment can also be known as
System, subscriber unit, subscriber station, movement station, mobile station, distant station, access point, remote terminal, access terminal, user terminal,
User agent or user apparatus.User equipment can be subscriber station, wireless device, cellular phone, pcs telephone, wireless phone, meeting
Words initiation protocol (SIP) phone, wireless local loop (WLL) stand, personal digital assistant (PDA), with wireless connection capability
Handheld device or the other processing equipments for being connected to radio modem.Base station is (for example, access point, node B, evolved section
Point B (eNB) can refer to gNB) access communicated in the air with wireless terminal by one or more sectors on interface
Equipment in network.By the way that the air interface frame received is converted to IP groupings, base station can be used as wireless terminal and access
Router between the rest part of network, access network may include Internet Protocol (IP) network.It base station can also be to sky
The management of the attribute of middle interface is coordinated.
In addition, various functions described herein may be implemented in hardware, software, firmware or its arbitrary combination.If
It realizes in software, then can store or be sent to computer-readable Jie using these functions as one or more instruction or code
In matter.Computer-readable medium includes both computer storage media and communication medias, which includes helping to count
Calculation machine program is transmitted to any medium of another position from a position.Storage medium can be accessed by computer
Any usable medium.For example and not restrictive, which may include RAM, ROM, EEPROM, CD-
ROM or other disk storages, magnetic disk storage or other magnetic storage apparatus can be used for instruction or data structure shape
The program code that formula carries or storage is required and any other medium that can be accessed by computer.In addition, any connection is all
It can be properly termed as computer-readable medium.For example, if using coaxial cable, optical fiber cable, twisted-pair feeder, Digital Subscriber Line
(DSL) or the wireless technology of infrared ray, radio and microwave etc. sends software from website, server or other remote sources,
Then the wireless technology of coaxial cable, optical fiber cable, twisted-pair feeder, DSL or infrared ray, radio and microwave etc. is included in Jie
In the definition of matter.Disk and CD used herein include compact disk (CD), laser-optical disk, CD, digital multi light
Disk (DVD), floppy disk, Blu-ray Disc (BD), wherein disk usually magnetically replicate data, and CD is using laser optics multiple
Data processed.The combination of above-mentioned items should also be as being included in the range of computer-readable medium.
Various technologies described herein can be used for various wireless communication systems, such as CDMA (CDMA) system,
Time division multiple acess (TDMA) system, frequency division multiple access (FDMA) system, orthogonal frequency division multiple access (OFDMA) system, Single Carrier Frequency Division Multiple Access (SD-
FDMA) system and other such systems.Herein, term " system " and " network " are usually used interchangeably.Cdma system can be with
Realize that such as general land wireless access (UTRA), CDMA2000, high-speed packet access (HSPA), high-speed downlink packet connect
Enter the wireless technology of (HSDPA), High Speed Uplink Packet access (HSUPA) etc..UTRA include broadband-CDMA (W-CDMA) and
Other modifications of CDMA.In addition, CDMA2000 covers IS-2000, IS-95 and IS-856 standard.TDMA system may be implemented all
Such as wireless technology of global system for mobile communications (GSM).OFDMA system may be implemented such as evolved UTRA (E-UTRA),
Ultra-Mobile Broadband (UMB), IEEE802.11 (Wi-Fi), IEEE802.16 (WiMAX), IEEE802.20, Flash-OFDM etc.
Wireless technology.UTRA and E-UTRA is a part of Universal Mobile Telecommunications System (UMTS).3GPP long term evolutions (LTE) are to use
The upcoming version of E-UTRA uses OFDMA and uses SC-FDMA on uplink on the uplink.
HSPA, HSDPA, HSUPA, UTRA, E- are described in the document of the tissue of entitled " third generation partner program " (3GPP)
UTRA, UMTS, LTE, LTE-A, 5G, SAE, EPC and GSM.Further, in entitled " third generation partner program 2 "
CDMA2000 and UMB are described in the document of the tissue of (3GPP2).Further, in addition these wireless communication systems can wrap
Include usually used non-paired unauthorized spectrum, 802.xx Wireless LAN, bluetooth and any other short distance and remote radio communication technology
The ad hoc network system of point-to-point (for example, mobile station is to mobile station).For the sake of clarity, used in the following description with
The associated term of WCDMA, HSPA, HSDPA and HSUPA.It will be clear however that unless explicitly stated, otherwise institute
Attached claim is not intended to be limited to WCDMA, HSPA, HSDPA and HSUPA.
In addition, term "or" is intended to indicate that the "or" of inclusive rather than exclusive "or".If not that is, particularly point out,
Or from the context it is clear that otherwise phrase " X use A or B " be intended to indicate that it is any one in natural inclusive displacement
Kind.That is, any one following example all meets phrase " X uses A or B "：X uses A；X uses B；Or X uses both A and B.Separately
Outside, can understand learn it is single form unless specified otherwise or from context, otherwise in the application and the attached claims
Used in article " one " and "one" should be typically interpreted as indicate " one or more ".
The system that basis may include multiple equipment, component, module etc. is provided into various aspects.It should be understood that and clearly
Be that each system may include additional equipment, component, module etc., and/or can not include discussed in conjunction with attached drawing it is all
Equipment, component, module etc..The combination of these schemes can also be used.
Referring to FIG. 1, Fig. 1 is a kind of flow of the sending method for Physical Downlink Control Channel that the embodiment of the present invention proposes
Schematic diagram.As shown, the method in the embodiment of the present invention includes：
S101, generation include the current subframe of physical downlink control channel PDCCH, and the PDCCH includes public control money
Source collection (control resource set) and at least one user class control resource set, and the public control resource set is used for
It carries user group and controls information；User group control information be used to indicate the user equipment that each user group includes and
The running time-frequency resource position of the corresponding user class control resource set of the user group；The user class control resource set is for carrying
The Downlink Control Information of user equipment in the corresponding user group.
Include at least one search space, each search space in public control resource set/user class control resource set
Including K control channel unit (Control Channel Element, CCE), each CCE includes the resource element of fixed quantity
Plain group (Resource Element Group).
In the specific implementation, before generation includes the current subframe of physical downlink control channel PDCCH, it can be according to current
The business scenario type of the user equipment of subframe scheduling determines the user equipment in user group；According to the user in the user group
The business scenario type of equipment determines the corresponding user class control resource set of the user group.Wherein, identical services scene type
User equipment belongs to same user group.It further, can be according to the business scenario type pair of user equipment in the user group
The delay requirement and/or reliability requirement answered determine the corresponding user class control resource set of the user group.In this way, can be according to difference
User type distribute different user class control resource sets, ensure the KPI performance indicators of user.Can specifically be broadly divided into
Under several classes：
First, the multiple user class control resource set includes at least the first user class and controls resource set, and described first uses
Family grade control resource set occupies first OFDM symbol of current subframe, if the business scenario of user equipment is in the user group
Low time delay high reliable communication (ultra-reliable low-latency communications, URLLC), then by the use
The Downlink Control Information of user equipment maps to first user group and controls resource set to generate the current subframe in the group of family.
So, it is ensured that user equipment under URLLC scenes after receiving first controlling symbols can start to process, reduce time delay.
Second, the multiple user class control resource set includes at least second user grade and controls resource set, and described second uses
Family grade control resource set occupy current subframe at least two OFDM symbols, if in the user group user equipment business scenario
For enhanced mobile broadband eMBB, then the Downlink Control Information of user equipment in the user group is mapped into the second user
Group control resource set is to generate the current subframe.In this way, the user equipment under eMBB scenes can utilize time diversity technique,
Such as the gain that space-time block code (Space-time block coding, STBC) technology is brought, it improves control information and receives
Accuracy.
Wherein, the public control resource set occupies the intermediate frequency of the frequency domain of first OFDM symbol of the current subframe
Band reduces the re-matching to different community to support the cell of different bandwidth.Furthermore it is possible to which common control information is mapped to
The public control resource set, the common control information include in system message, paging message, accidental access response message
It is at least one.
For example, as shown in Fig. 2, PDCCH, which includes public control resource set and three user classes, controls resource sets, public control
Resource set processed occupies the intermediate frequency band of the frequency domain of first OFDM symbol of current subframe, and public control resource set includes public control
Information and user group control information, wherein common control information is used for bearing system public message (such as：Session initiation protocol sip
Message, paging Paging message, system message, accidental access response message RAR etc.), user group control information is used to indicate
The running time-frequency resource for the corresponding user class control resource set of user equipment and the user group that each user group includes
Position.Three user class control resource sets include the user class control resource set 1 for first OFDM symbol for occupying current subframe
(resource area 1-1, resource area 1-2 ..., resource area 1-N), occupy current subframe at least two OFDM symbols use
Family grade control resource set 2 (resource area 2-1, resource area 2-2 ..., resource area 2-N) and user class control resource set 3
(resource area 3-1, resource area 3-2 ..., resource area 3-N), user class controls each resource area in resource set
Running time-frequency resource position is different.
As shown in figure 3, including multiple descending scheduling users in some subframe n, wherein user equipment 1 is used for URLLC
Family, user equipment 2 are eMBB user, and public control resource set includes that (user group 1 corresponds to user class control resource set to user group 1
And the running time-frequency resource position of user group 2 (user group 2 correspond to user class control resource set 2) 1).Since user equipment 1 wants time delay
Ask high, user equipment 1 is determined as the user equipment in user group 1, and user group 1 corresponds to user class and controls resource set 1, therefore will use
The Downlink Control Information of family equipment 1 is mapped to user class control resource set 1, ensures that user equipment 1 is receiving first command character
At once start to process after number；Since user equipment 2 is to reliability requirement height, the user that user equipment 2 is determined as in user group 2 sets
Standby, user group 2 corresponds to user class and controls resource set 2, therefore the Downlink Control Information of user equipment 2 is mapped to user class control
Resource set 2, the gain utmostly brought using time diversity；The Downlink Control Information of other users equipment is mapped to user class
Control resource set 3.
Again as shown in figure 4, in a further exemplary embodiment, user equipment 1 and user equipment 2 are that URLLC user sets
Standby, since user equipment 1 and user equipment 2 are all to delay requirement height, user equipment 1 and user equipment 2 are all determined as user group 1
In user equipment, user group 1 corresponds to user class and controls resource set 1, therefore by the Downlink Control Information of user equipment 1 and user
The Downlink Control Information of equipment 2 is mapped to user class control resource set 1, ensures that user equipment 1 and user equipment 2 are receiving first
At once start to process after a controlling symbols.
Optionally, it may be determined that the occupied control channel unit of the Downlink Control Information of user equipment in the user group
CCE, wherein the different user devices in same user group occupy different polymerization grades (Aggregation Level, AL)
CCE。
It should be noted that polymerization grade is the combining form of CCE, i.e. PDCCH is made of L CCE, illustratively,
Middle L ∈ { 1,2,4,8 ... ... }, that is to say, that PDCCH can only include following combining form：The combination (1-CCE) of 1 CCE,
The combination (2-CCE) of 2 CCE, the combination (4-CCE) of 4 CCE and the combination (8-CCE) of 8 CCE are constituted.However, should be clear
Chu can utilize other polymerization grades.Search space is made of several groups candidate control channel, and user equipment is empty to search
Between monitored, blind examination is carried out in search space according to different polymerization grades, to detect and oneself relevant downlink
Control channel.For example, as shown in fig. 7, by taking control area includes 8 CCE as an example, the number of candidates of polymerization grade 1,2,4,8
Respectively 8 (candidate #0~candidate #7), 4 (candidate #8~#11), 2 (#12~#13) and 1 (#14).It is searched using this
The candidate designs in rope space can make the control channel shared channel estimated result of different polymerization grades, reduce channel estimation
Complexity.For example, the control channel that can be only 8 to polymerization grade carries out channel estimation, the control channel of other polymerization grades
The channel estimation results for the control channel that polymerization grade is 8 can be multiplexed.
As shown in figure 5, since user equipment 1 and user equipment 2 occupy control resource set 1 simultaneously, in order to avoid user sets
Resource collision occurs when mapping to CCE for the Downlink Control Information for 1 and user equipment 2, therefore may be used two different
The polymerization grade of polymerization grade, the control channel of user equipment 1 is 2, i.e. the Downlink Control Information of user equipment 1 occupies 2
CCE, such as candidate #10.The polymerization grade of the control channel of user equipment 2 is 4, that is, the Downlink Control Information of user equipment 2 accounts for
With 4 CCE, such as candidate #12 down control channel resources/search of user equipment is avoided to reasonable distribution CCE resources
Space clashes.For example, when the polymerization grade of user equipment 2 is 4, which occupies candidate #12 shown in Fig. 7 (i.e.
CCE0~CCE3) down control channel, then other users can only occupy the resource of CCE4~CCE7 in the user group.If at this time
The polymerization grade of user equipment 1 is similarly 4, then user equipment 1 all occupies the resource of CCE4~CCE7, other users equipment
It is then available without CCE.If the polymerization grade of user equipment 1 is 2, down control channel occupies in candidate #10 and #11 wherein
One, 2 CCE are only taken up, then remaining 2 CCE can also be that other users equipment is available.Therefore, in same user group not
The CCE that different polymerization grades are occupied with user equipment can avoid the down control channel of user equipment from existing with reasonable distribution resource
It carries out generating conflict when physical resource mapping.
Optionally, before the generation includes the current subframe of physical downlink control channel PDCCH, main letter can be broadcasted
It includes the occupied running time-frequency resource position of public control resource set to cease block MIB, the Master Information Block MIB, so that it is guaranteed that often
The user equipment of a access can obtain public control resource set.
S202 sends the current subframe to the user equipment.
In embodiments of the present invention, generation includes the current subframe of physical downlink control channel PDCCH, the PDCCH packets
Public control resource set and at least one user class control resource set are included, the public control resource set is for carrying user group
Control information；The user group control information is used to indicate the user equipment and the user group pair that each user group includes
The running time-frequency resource position for the user class control resource set answered；The user class control resource set is corresponding described for carrying
The Downlink Control Information of user equipment in user group；The current subframe is sent to the user equipment, and then user equipment can
To carry out blind examination in the user class of configuration control resource set, to reduce blind examination range to reduce blind examination number, system is reduced
Delay.
Referring to FIG. 6, Fig. 6 is a kind of method of reseptance for Physical Downlink Control Channel that another embodiment of the present invention proposes
Flow diagram.As shown, the method in the embodiment of the present invention includes：
S601 is received in the public control resource set of the physical downlink control channel PDCCH for the current subframe that base station is sent
User group controls information；The user group control information is used to indicate the user equipment and the user group that each user group includes
The running time-frequency resource position of corresponding user class control resource set.
In the specific implementation, base station firstly generates the current subframe including physical downlink control channel PDCCH, the PDCCH
Resource set is controlled including public control resource set and at least one user class, the public control resource set is for carrying user
Group control information；The user group control information is used to indicate the user equipment and the user group that each user group includes
The running time-frequency resource position of the corresponding user class control resource set；The user class control resource set is for carrying corresponding institute
The Downlink Control Information of user equipment in user group is stated, then will send the current subframe to the user equipment.
S602 controls the instruction of information according to the user group, is carried out in the corresponding user class control resource set blind
Inspection is to obtain Downlink Control Information.
For example, as shown in Fig. 2, PDCCH, which includes public control resource set and three user classes, controls resource sets, public control
Resource set processed occupies the intermediate frequency band of the frequency domain of first OFDM symbol of current subframe, and public control resource set includes public control
Information and user group control information, wherein common control information is used for bearing system public message (such as：Session initiation protocol sip
Message, paging Paging message, system message, accidental access response message RAR etc.), user group control information is used to indicate
The running time-frequency resource for the corresponding user class control resource set of user equipment and the user group that each user group includes
Position.Three user class control resource sets include the user class control resource set 1 for first OFDM symbol for occupying current subframe
(resource area 1-1, resource area 1-2 ..., resource area 1-N), occupy current subframe at least two OFDM symbols use
Family grade control resource set 2 (resource area 2-1, resource area 2-2 ..., resource area 2-N) and user class control resource set 3
(resource area 3-1, resource area 3-2 ..., resource area 3-N), user class controls each resource area in resource set
Running time-frequency resource position is different.
As shown in figure 3, including multiple descending scheduling users in some subframe n, wherein user equipment 1 is URLLC user
Equipment, user equipment 2 are eMBB user equipmenies, and public control resource set includes that (user group 1 corresponds to user class control to user group 1
Resource set 1) and user group 2 (user group 2 corresponds to user class and controls resource set 2).Since user equipment 1 is to delay requirement height, use
Family equipment 1 is determined as the user equipment in user group 1, and user group 1 corresponds to user class and controls resource set 1, therefore by user equipment 1
Downlink Control Information be mapped to user class control resource set 1, user equipment 1, according to user group control information instruction user
The running time-frequency resource position of grade control resource set carries out blind examination to obtain the downlink control of user equipment 1 in user class control resource set 1
Information processed.Since user equipment 2 is to reliability requirement height, user equipment 2 is determined as the user equipment in user group 2, user group 2
Corresponding user class controls resource set 2, and user equipment 2 controls the time-frequency that the user class that information indicates controls resource set according to user group
Resource location carries out blind examination to obtain Downlink Control Information in user class control resource set 2.Again as shown in figure 4, user equipment 1
It is URLLC user equipmenies with user equipment 2, due to user equipment 1 and all high, the user equipmenies 1 to delay requirement of user equipment 2
All it is determined as the user equipment in user group 1 with user equipment 2, user group 1 corresponds to user class and controls resource set 1, therefore base station
The Downlink Control Information of the Downlink Control Information of user equipment 1 and user equipment 2 is mapped to user class and controls resource set 1, is used
Family equipment 1 and user equipment 2 control the running time-frequency resource position that the user class that information indicates controls resource set according to user group, with
Family grade control resource set 1 carries out blind examination to obtain Downlink Control Information.
Further, the starting running time-frequency resource position that resource set can be controlled from the user class proceeds by different polymerizations
The blind examination of grade is to obtain Downlink Control Information.Public control resource set and/or user class control resource set can be from when startings
Frequency resource location starts (or starting CCE starts), is divided into multiple search spaces, each search space is using shown in Fig. 7
The number of candidates dividing mode of polymerization grade.User equipment to public control resource set and/or user class control resource set into
When row blind examination, since starting running time-frequency resource position (or starting CCE), successively to each search space according to corresponding
Candidate carries out blind examination.For example, the number of candidates dividing mode of polymerization grade as shown in Figure 7, every 8 CCE include 15 candidates.
User equipment is first to preceding 8 CCE according to 15 blind examinations of corresponding candidate progress, if not being decoded to respective impact control information,
Then to it is next include that the search space of 8 CCE carries out blind examination, until decoding obtains respective impact control information or has decoded
All search spaces.
Optionally, the public control resource set of the physical downlink control channel PDCCH of the current subframe sent in base station connects
Before receiving user group control information, the Master Information Block MIB, the Master Information Block MIB that can receive the base station broadcast include institute
The occupied running time-frequency resource position of public control resource set is stated, to ensure that user equipment can obtain public control resource set.
Referring to FIG. 8, Fig. 8 is a kind of structural schematic diagram of base station provided in an embodiment of the present invention.As shown, of the invention
Base station in embodiment includes：
Processing unit 801, for generate include physical downlink control channel PDCCH current subframe, the PDCCH includes
Public control resource set and at least one user class control resource set, and the public control resource set is for carrying user group control
Information processed；The user group control information is used to indicate the user equipment that each user group includes and the user group corresponds to
The user class control resource set running time-frequency resource position；The user class control resource set is for carrying the corresponding use
The Downlink Control Information of user equipment in the group of family.
Include at least one search space, each search space in public control resource set/user class control resource set
Including K control channel unit (Control Channel Element, CCE), each CCE includes the resource element of fixed quantity
Plain group (Resource Element Group).
In the specific implementation, before generation includes the current subframe of physical downlink control channel PDCCH, it can be according to current
The business scenario type of the user equipment of subframe scheduling determines the user equipment in user group；According to the user in the user group
The business scenario type of equipment determines the corresponding user class control resource set of the user group.Wherein, identical services scene type
User equipment belongs to same user group.It further, can be according to the business scenario type pair of user equipment in the user group
The delay requirement and/or reliability requirement answered determine the corresponding user class control resource set of the user group.In this way, can be according to difference
User type distribute different user class control resource sets, ensure the KPI performance indicators of user.Can specifically be broadly divided into
Under several classes：
First, the multiple user class control resource set includes at least the first user class and controls resource set, and described first uses
Family grade control resource set occupies first OFDM symbol of current subframe, if the business scenario of user equipment is in the user group
Low time delay high reliable communication (ultra-reliable low-latency communications, URLLC), then by the use
The Downlink Control Information of user equipment maps to first user group and controls resource set to generate the current subframe in the group of family.
So, it is ensured that user equipment under URLLC scenes after receiving first controlling symbols can start to process, reduce time delay.
Second, the multiple user class control resource set includes at least second user grade and controls resource set, and described second uses
Family grade control resource set occupy current subframe at least two OFDM symbols, if in the user group user equipment business scenario
For enhanced mobile broadband eMBB, then the Downlink Control Information of user equipment in the user group is mapped into the second user
Group control resource set is to generate the current subframe.In this way, the user equipment under eMBB scenes can utilize time diversity technique,
Such as the gain that space-time block code (Space-time block coding, STBC) technology is brought, it improves control information and receives
Accuracy.
Wherein, the public control resource set occupies the intermediate frequency of the frequency domain of first OFDM symbol of the current subframe
Band reduces the re-matching to different community to support the cell of different bandwidth.Furthermore it is possible to which common control information is mapped to
The public control resource set, the common control information include in system message, paging message, accidental access response message
It is at least one.
For example, as shown in Fig. 2, PDCCH, which includes public control resource set and three user classes, controls resource sets, public control
Resource set processed occupies the intermediate frequency band of the frequency domain of first OFDM symbol of current subframe, and public control resource set includes public control
Information and user group control information, wherein common control information is used for bearing system public message (such as：Session initiation protocol sip
Message, paging Paging message, system message, accidental access response message RAR etc.), user group control information is used to indicate
The running time-frequency resource for the corresponding user class control resource set of user equipment and the user group that each user group includes
Position.Three user class control resource sets include the user class control resource set 1 for first OFDM symbol for occupying current subframe
(resource area 1-1, resource area 1-2 ..., resource area 1-N), occupy current subframe at least two OFDM symbols use
Family grade control resource set 2 (resource area 2-1, resource area 2-2 ..., resource area 2-N) and user class control resource set 3
(resource area 3-1, resource area 3-2 ..., resource area 3-N), user class controls each resource area in resource set
Running time-frequency resource position is different.
As shown in figure 3, including multiple descending scheduling users in some subframe n, wherein user equipment 1 is used for URLLC
Family, user equipment 2 are eMBB user, and public control resource set includes that (user group 1 corresponds to user class control resource set to user group 1
And the running time-frequency resource position of user group 2 (user group 2 correspond to user class control resource set 2) 1).Since user equipment 1 wants time delay
Ask high, user equipment 1 is determined as the user equipment in user group 1, and user group 1 corresponds to user class and controls resource set 1, therefore will use
The Downlink Control Information of family equipment 1 is mapped to user class control resource set 1, ensures that user equipment 1 is receiving first command character
At once start to process after number；Since user equipment 2 is to reliability requirement height, the user that user equipment 2 is determined as in user group 2 sets
Standby, user group 2 corresponds to user class and controls resource set 2, therefore the Downlink Control Information of user equipment 2 is mapped to user class control
Resource set 2, the gain utmostly brought using time diversity；The Downlink Control Information of other users equipment is mapped to user class
Control resource set 3.
Again as shown in figure 4, in a further exemplary embodiment, user equipment 1 and user equipment 2 are that URLLC user sets
Standby, since user equipment 1 and user equipment 2 are all to delay requirement height, user equipment 1 and user equipment 2 are all determined as user group 1
In user equipment, user group 1 corresponds to user class and controls resource set 1, therefore by the Downlink Control Information of user equipment 1 and user
The Downlink Control Information of equipment 2 is mapped to user class control resource set 1, ensures that user equipment 1 and user equipment 2 are receiving first
At once start to process after a controlling symbols.
Optionally, it may be determined that the occupied control channel unit of the Downlink Control Information of user equipment in the user group
CCE, wherein the different user devices in same user group occupy different polymerization grades (Aggregation Level, AL)
CCE。
It should be noted that polymerization grade is the combining form of CCE, i.e. PDCCH is made of L CCE, illustratively,
Middle L ∈ { 1,2,4,8 ... ... }, that is to say, that PDCCH can only include following combining form：The combination (1-CCE) of 1 CCE,
The combination (2-CCE) of 2 CCE, the combination (4-CCE) of 4 CCE and the combination (8-CCE) of 8 CCE are constituted.However, should be clear
Chu can utilize other polymerization grades.Search space is made of several groups candidate control channel, and user equipment is empty to search
Between monitored, blind examination is carried out in search space according to different polymerization grades, to detect and oneself relevant downlink
Control channel.For example, as shown in fig. 7, by taking control area includes 8 CCE as an example, the number of candidates of polymerization grade 1,2,4,8
Respectively 8 (candidate #0~candidate #7), 4 (candidate #8~#11), 2 (#12~#13) and 1 (#14).It is searched using this
The candidate designs in rope space can make the control channel shared channel estimated result of different polymerization grades, reduce channel estimation
Complexity.For example, the control channel that can be only 8 to polymerization grade carries out channel estimation, the control channel of other polymerization grades
The channel estimation results for the control channel that polymerization grade is 8 can be multiplexed.
As shown in figure 5, since user equipment 1 and user equipment 2 occupy control resource set 1 simultaneously, in order to avoid user sets
Resource collision occurs when mapping to CCE for the Downlink Control Information for 1 and user equipment 2, therefore may be used two different
The polymerization grade of polymerization grade, the control channel of user equipment 1 is 2, i.e. the Downlink Control Information of user equipment 1 occupies 2
CCE, such as candidate #10.The polymerization grade of the control channel of user equipment 2 is 4, that is, the Downlink Control Information of user equipment 2 accounts for
With 4 CCE, such as candidate #12 down control channel resources/search of user equipment is avoided to reasonable distribution CCE resources
Space clashes.For example, when the polymerization grade of user equipment 2 is 4, which occupies candidate #12 shown in Fig. 7 (i.e.
CCE0~CCE3) down control channel, then other users can only occupy the resource of CCE4~CCE7 in the user group.If at this time
The polymerization grade of user equipment 1 is similarly 4, then user equipment 1 all occupies the resource of CCE4~CCE7, other users equipment
It is then available without CCE.If the polymerization grade of user equipment 1 is 2, down control channel occupies in candidate #10 and #11 wherein
One, 2 CCE are only taken up, then remaining 2 CCE can also be that other users equipment is available.Therefore, in same user group not
The CCE that different polymerization grades are occupied with user equipment can avoid the down control channel of user equipment from existing with reasonable distribution resource
It carries out generating conflict when physical resource mapping.
Optionally, before the generation includes the current subframe of physical downlink control channel PDCCH, main letter can be broadcasted
It includes the occupied running time-frequency resource position of public control resource set to cease block MIB, the Master Information Block MIB, so that it is guaranteed that often
The user equipment of a access can obtain public control resource set.
Transmission unit 801, for sending the current subframe to the user equipment.
In embodiments of the present invention, generation includes the current subframe of physical downlink control channel PDCCH, the PDCCH packets
Public control resource set and at least one user class control resource set are included, the public control resource set is for carrying user group
Control information；The user group control information is used to indicate the user equipment and the user group pair that each user group includes
The running time-frequency resource position for the user class control resource set answered；The user class control resource set is corresponding described for carrying
The Downlink Control Information of user equipment in user group；The current subframe is sent to the user equipment, and then user equipment can
To carry out blind examination in the user class of configuration control resource set, to reduce blind examination range to reduce blind examination number, system is reduced
Delay.
Referring to FIG. 9, Fig. 9 is a kind of structural schematic diagram of user equipment provided in an embodiment of the present invention.As shown, this
User equipment in inventive embodiments includes：
Receiving unit 901, the public control of the physical downlink control channel PDCCH of the current subframe for being sent in base station
Resource set receives user group and controls information；User group control information be used to indicate the user equipment that each user group includes with
And the running time-frequency resource position of the corresponding user class control resource set of the user group.
In the specific implementation, base station firstly generates the current subframe including physical downlink control channel PDCCH, the PDCCH
Resource set is controlled including public control resource set and at least one user class, the public control resource set is for carrying user
Group control information；The user group control information is used to indicate the user equipment and the user group that each user group includes
The running time-frequency resource position of the corresponding user class control resource set；The user class control resource set is for carrying corresponding institute
The Downlink Control Information of user equipment in user group is stated, then will send the current subframe to the user equipment.
Processing unit 902, the instruction for controlling information according to the user group, in the corresponding user class control money
Source collection carries out blind examination to obtain Downlink Control Information.
For example, as shown in Fig. 2, PDCCH, which includes public control resource set and three user classes, controls resource sets, public control
Resource set processed occupies the intermediate frequency band of the frequency domain of first OFDM symbol of current subframe, and public control resource set includes public control
Information and user group control information, wherein common control information is used for bearing system public message (such as：Session initiation protocol sip
Message, paging Paging message etc.), user group control information be used to indicate the user equipment that each user group includes with
And the running time-frequency resource position of the corresponding user class control resource set of the user group.Three user class control resource sets include accounting for
With the user class control resource set 1 of first OFDM symbol of current subframe (resource area 1-1, resource area 1-2 ..., money
Source region 1-N), occupy current subframe at least two OFDM symbols user class control resource set 2 (resource area 2-1, resource
Region 2-2 ..., resource area 2-N) and user class control resource set 3 (resource area 3-1, resource area 3-2 ..., money
Source region 3-N), the running time-frequency resource position that user class controls each resource area in resource set is different.
As shown in figure 3, including multiple descending scheduling users in some subframe n, wherein user equipment 1 is URLLC user
Equipment, user equipment 2 are eMBB user equipmenies, and public control resource set includes that (user group 1 corresponds to user class control to user group 1
Resource set 1) and user group 2 (user group 2 corresponds to user class and controls resource set 2).Since user equipment 1 is to delay requirement height, use
Family equipment 1 is determined as the user equipment in user group 1, and user group 1 corresponds to user class and controls resource set 1, therefore by user equipment 1
Downlink Control Information be mapped to user class control resource set 1, user equipment 1, according to user group control information instruction user
The running time-frequency resource position of grade control resource set carries out blind examination to obtain the downlink control of user equipment 1 in user class control resource set 1
Information processed.Since user equipment 2 is to reliability requirement height, user equipment 2 is determined as the user equipment in user group 2, user group 2
Corresponding user class controls resource set 2, and user equipment 2 controls the time-frequency that the user class that information indicates controls resource set according to user group
Resource location carries out blind examination to obtain Downlink Control Information in user class control resource set 2.Again as shown in figure 4, user equipment 1
It is URLLC user equipmenies with user equipment 2, due to user equipment 1 and all high, the user equipmenies 1 to delay requirement of user equipment 2
All it is determined as the user equipment in user group 1 with user equipment 2, user group 1 corresponds to user class and controls resource set 1, therefore base station
The Downlink Control Information of the Downlink Control Information of user equipment 1 and user equipment 2 is mapped to user class and controls resource set 1, is used
Family equipment 1 and user equipment 2 control the running time-frequency resource position that the user class that information indicates controls resource set according to user group, with
Family grade control resource set 1 carries out blind examination to obtain Downlink Control Information.
Further, the starting running time-frequency resource position that resource set can be controlled from the user class proceeds by different polymerizations
The blind examination of grade is to obtain Downlink Control Information.Public control resource set and/or user class control resource set can be from when startings
Frequency resource location starts (or starting CCE starts), is divided into multiple search spaces, each search space is using shown in Fig. 7
The number of candidates dividing mode of polymerization grade.User equipment to public control resource set and/or user class control resource set into
When row blind examination, since starting running time-frequency resource position (or starting CCE), successively to each search space according to corresponding
Candidate carries out blind examination.For example, the number of candidates dividing mode of polymerization grade as shown in Figure 7, every 8 CCE include 15 candidates.
User equipment is first to preceding 8 CCE according to 15 blind examinations of corresponding candidate progress, if not being decoded to respective impact control information,
Then to it is next include that the search space of 8 CCE carries out blind examination, until decoding obtains respective impact control information or has decoded
All search spaces.
Optionally, the public control resource set of the physical downlink control channel PDCCH of the current subframe sent in base station connects
Before receiving user group control information, the Master Information Block MIB, the Master Information Block MIB that can receive the base station broadcast include institute
The occupied running time-frequency resource position of public control resource set is stated, to ensure that user equipment can obtain public control resource set.
It should be noted that for each embodiment of the method above-mentioned, for simple description, therefore it is all expressed as to a system
The combination of actions of row, but those skilled in the art should understand that, the present invention is not limited by the described action sequence, because
For according to the present invention, certain some step can be performed in other orders or simultaneously.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, involved action and module not necessarily this hair
Necessary to bright.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, is not described in some embodiment
Part, may refer to the associated description of other embodiment.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include：Flash disk, read-only memory (English：Read-Only Memory, referred to as：ROM), random access device (English
Text：Random Access Memory, referred to as：RAM), disk or CD etc..
It is provided for the embodiments of the invention content download method above and relevant device, system are described in detail,
Principle and implementation of the present invention are described for specific case used herein, and the explanation of above example is only used
In facilitating the understanding of the method and its core concept of the invention；Meanwhile for those of ordinary skill in the art, according to the present invention
Thought, there will be changes in the specific implementation manner and application range, in conclusion the content of the present specification should not be construed as
Limitation of the present invention.
Claims (28)
1. a kind of Physical Downlink Control Channel sending method, which is characterized in that the method includes：
Generate include physical downlink control channel PDCCH current subframe, the PDCCH includes public control resource set and extremely
A few user class controls resource set, and the public control resource set is for carrying user group control information；The user group control
Information processed is used to indicate the user equipment that each user group includes and the corresponding user class control money of the user group
The running time-frequency resource position of source collection；The user class control resource set is for carrying in the corresponding user group under user equipment
Row control information；
The current subframe is sent to the user equipment.
2. the method as described in claim 1, which is characterized in that the generation includes working as physical downlink control channel PDCCH
Before preceding subframe, further include：
It includes the occupied running time-frequency resource position of public control resource set to broadcast Master Information Block MIB, the Master Information Block MIB
It sets.
3. the method as described in claim 1, which is characterized in that the generation includes working as physical downlink control channel PDCCH
Before preceding subframe, further include：
The user equipment in user group is determined according to the business scenario type of the user equipment of current subframe scheduling；
Determine that the corresponding user class of the user group controls resource according to the business scenario type of the user equipment in the user group
Collection.
4. method as claimed in claim 3, which is characterized in that the user equipment of identical services scene type belongs to same user
Group.
5. method as claimed in claim 4, which is characterized in that the business scenario according to user equipment in the user group
Type determines that the corresponding user class control resource set of the user group includes：
Being determined according to the corresponding delay requirement of business scenario type of user equipment in the user group and/or reliability requirement should
The corresponding user class of user group controls resource set.
6. method as claimed in claim 5, which is characterized in that the multiple user class control resource set includes at least first and uses
Family grade control resource set, the first user class control resource set occupy first OFDM symbol of current subframe, the generation
Current subframe including physical downlink control channel PDCCH includes：
If the business scenario of user equipment is low time delay high reliable communication URLLC in the user group, will be in the user group
The Downlink Control Information of user equipment maps to first user group and controls resource set to generate the current subframe.
7. method as claimed in claim 5, which is characterized in that the multiple user class control resource set includes at least second and uses
Family grade control resource set, the second user grade control resource set occupy at least two OFDM symbols of current subframe, the life
Include at the current subframe including physical downlink control channel PDCCH：
If the business scenario of user equipment is enhanced mobile broadband eMBB in the user group, by user in the user group
The Downlink Control Information of equipment maps to the second user group and controls resource set to generate the current subframe.
8. such as claim 1-7 any one of them methods, which is characterized in that the generation includes Physical Downlink Control Channel
Before the current subframe of PDCCH, the method further includes：
Determine the occupied control channel unit CCE of the Downlink Control Information of user equipment in the user group, wherein same use
Different user devices in the group of family occupy the CCE of different polymerization grades.
9. such as claim 1-7 any one of them methods, which is characterized in that the public control resource set occupies described current
The intermediate frequency band of the frequency domain of first OFDM symbol of subframe.
10. the method as described in claim 1-7 any one, which is characterized in that the public control resource set further includes public affairs
Information is controlled altogether, and the common control information includes at least one in system message, paging message, accidental access response message
Kind.
11. a kind of method of reseptance of down control channel, which is characterized in that the method includes：
User group control is received in the public control resource set of the physical downlink control channel PDCCH for the current subframe that base station is sent
Information；The user group control information is used to indicate the user equipment and the corresponding user of the user group that each user group includes
The running time-frequency resource position of grade control resource set；
The instruction that information is controlled according to the user group, in the case where the corresponding user class control resource set carries out blind examination to obtain
Row control information.
12. method as claimed in claim 11, which is characterized in that the physical down control of the current subframe sent in base station
Before the public control resource set of channel PDCCH processed receives user group control information, further include：
Receive the Master Information Block MIB of the base station broadcast；The Master Information Block MIB includes occupied by the public control resource set
Running time-frequency resource position.
13. method as claimed in claim 11, which is characterized in that the instruction that information is controlled according to the user group,
The corresponding user class control resource set carries out blind examination and includes to obtain Downlink Control Information：
The starting running time-frequency resource position that resource set is controlled from the user class proceeds by the blind examination of different polymerization grades to obtain
Downlink Control Information.
14. such as claim 11-13 any one of them methods, which is characterized in that further include：
Common control channel is received in the public control resource set of the physical downlink control channel PDCCH for the current subframe that base station is sent
Breath, the common control information includes at least one of system message, paging message, accidental access response message.
15. a kind of base station, which is characterized in that the base station includes：
Processing unit, for generate include physical downlink control channel PDCCH current subframe, the PDCCH includes public control
Resource set processed and at least one user class control resource set, and the public control resource set is for carrying user group control letter
Breath；The user group control information is used to indicate the user equipment and the corresponding institute of the user group that each user group includes
State the running time-frequency resource position of user class control resource set；The user class control resource set is for carrying the corresponding user group
The Downlink Control Information of interior user equipment；
Transmission unit, for sending the current subframe to the user equipment.
16. base station as claimed in claim 15, which is characterized in that
The transmission unit, it includes the public control resource set to be additionally operable to broadcast Master Information Block MIB, the Master Information Block MIB
Occupied running time-frequency resource position.
17. base station as claimed in claim 15, which is characterized in that
The processing unit, the business scenario type for being additionally operable to the user equipment dispatched according to current subframe determine in user group
User equipment；The corresponding user class control of the user group is determined according to the business scenario type of the user equipment in the user group
Resource set.
18. base station as claimed in claim 17, which is characterized in that the user equipment of identical services scene type belongs to same use
Family group.
19. base station as claimed in claim 18, which is characterized in that the processing unit is specifically used for：
Being determined according to the corresponding delay requirement of business scenario type of user equipment in the user group and/or reliability requirement should
The corresponding user class of user group controls resource set.
20. base station as claimed in claim 19, which is characterized in that the multiple user class control resource set includes at least first
User class controls resource set, and the first user class control resource set occupies first OFDM symbol of current subframe, the place
Reason unit is specifically used for：
If the business scenario of user equipment is low time delay high reliable communication URLLC in the user group, will be in the user group
The Downlink Control Information of user equipment maps to first user group and controls resource set to generate the current subframe.
21. base station as claimed in claim 19, which is characterized in that the multiple user class control resource set includes at least second
User class controls resource set, and the second user grade control resource set occupies at least two OFDM symbols of current subframe, described
Processing unit is specifically used for：
If the business scenario of user equipment is enhanced mobile broadband eMBB in the user group, by user in the user group
The Downlink Control Information of equipment maps to the second user group and controls resource set to generate the current subframe.
22. such as claim 15-21 any one of them base station, which is characterized in that
The processing unit is additionally operable to determine the occupied control channel of Downlink Control Information of user equipment in the user group
Unit CCE, wherein the different user devices in same user group occupy the CCE of different polymerization grades.
23. such as claim 15-21 any one of them base station, which is characterized in that described in the public control resource set occupies
The intermediate frequency band of the frequency domain of first OFDM symbol of current subframe.
24. the base station as described in claim 15-21 any one, which is characterized in that
The public control resource set further includes common control information, the common control information include system message, paging disappear
At least one of breath, accidental access response message.
25. a kind of user equipment, which is characterized in that the user equipment includes：
Receiving unit, the public control resource set of the physical downlink control channel PDCCH of the current subframe for being sent in base station
It receives user group and controls information；The user group control information is used to indicate the user equipment and the use that each user group includes
The running time-frequency resource position of the corresponding user class control resource set of family group；
Processing unit, the instruction for controlling information according to the user group, the corresponding user class control resource set into
Row blind examination is to obtain Downlink Control Information.
26. user equipment as claimed in claim 25, which is characterized in that
The receiving unit is additionally operable to receive the Master Information Block MIB of the base station broadcast；The Master Information Block MIB includes described
The public occupied running time-frequency resource position of control resource set.
27. user equipment as claimed in claim 25, which is characterized in that the processing unit is specifically used for：
The starting running time-frequency resource position that resource set is controlled from the user class proceeds by the blind examination of different polymerization grades to obtain
Downlink Control Information.
28. such as claim 25-27 any one of them user equipmenies, which is characterized in that the receiving unit is additionally operable in base
Stand send current subframe physical downlink control channel PDCCH public control resource set receiving common control information, it is described
Common control information includes at least one of system message, paging message, accidental access response message.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710150083.6A CN108574989A (en) | 2017-03-14 | 2017-03-14 | A kind of Physical Downlink Control Channel method of sending and receiving and relevant device |
| PCT/CN2017/110562 WO2018166226A1 (en) | 2017-03-14 | 2017-11-10 | Physical downlink control channel sending and receiving method, and related device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710150083.6A CN108574989A (en) | 2017-03-14 | 2017-03-14 | A kind of Physical Downlink Control Channel method of sending and receiving and relevant device |
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| CN108574989A true CN108574989A (en) | 2018-09-25 |
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| CN201710150083.6A Withdrawn CN108574989A (en) | 2017-03-14 | 2017-03-14 | A kind of Physical Downlink Control Channel method of sending and receiving and relevant device |
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| WO (1) | WO2018166226A1 (en) |
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| WO2020063271A1 (en) * | 2018-09-30 | 2020-04-02 | 维沃移动通信有限公司 | Receiving method, transmission method, terminal, and network apparatus |
| RU2773226C1 (en) * | 2018-09-30 | 2022-05-31 | Виво Мобайл Комьюникэйшн Ко., Лтд. | Methods for reception, transmission, customer equipment and network apparatus |
| CN115052358A (en) * | 2022-08-15 | 2022-09-13 | 杰创智能科技股份有限公司 | PDCCH blind detection method, device, electronic equipment and storage medium |
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| CN102123432B (en) * | 2011-03-29 | 2016-01-06 | 电信科学技术研究院 | A kind of resource instruction of down control channel and detection method, equipment |
| CN102202324B (en) * | 2011-05-19 | 2013-07-10 | 电信科学技术研究院 | Method and system of resource position indication and channel blind detection, and apparatus thereof |
| US9413509B2 (en) * | 2011-06-17 | 2016-08-09 | Texas Instruments Incorporated | Hybrid automatic repeat request acknowledge resource allocation for enhanced physical downlink control channel |
| CN103491516B (en) * | 2013-09-27 | 2018-05-15 | 东莞宇龙通信科技有限公司 | The transmission method of control signaling and base station |
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2017
- 2017-03-14 CN CN201710150083.6A patent/CN108574989A/en not_active Withdrawn
- 2017-11-10 WO PCT/CN2017/110562 patent/WO2018166226A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020063271A1 (en) * | 2018-09-30 | 2020-04-02 | 维沃移动通信有限公司 | Receiving method, transmission method, terminal, and network apparatus |
| CN110972320A (en) * | 2018-09-30 | 2020-04-07 | 维沃移动通信有限公司 | Receiving method, sending method, terminal and network side equipment |
| EP3860258A4 (en) * | 2018-09-30 | 2021-12-01 | Vivo Mobile Communication Co., Ltd. | Receiving method, transmission method, terminal, and network apparatus |
| RU2773226C1 (en) * | 2018-09-30 | 2022-05-31 | Виво Мобайл Комьюникэйшн Ко., Лтд. | Methods for reception, transmission, customer equipment and network apparatus |
| AU2019351191B2 (en) * | 2018-09-30 | 2023-01-05 | Vivo Mobile Communication Co., Ltd. | Receiving Method, Sending Method, Terminal, and Network Side Device |
| CN115052358A (en) * | 2022-08-15 | 2022-09-13 | 杰创智能科技股份有限公司 | PDCCH blind detection method, device, electronic equipment and storage medium |
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