CN107005354A - The transmission method and equipment of control information - Google Patents
The transmission method and equipment of control information Download PDFInfo
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- CN107005354A CN107005354A CN201580067038.3A CN201580067038A CN107005354A CN 107005354 A CN107005354 A CN 107005354A CN 201580067038 A CN201580067038 A CN 201580067038A CN 107005354 A CN107005354 A CN 107005354A
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- 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
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Abstract
The embodiment of the present invention provides a kind of method and apparatus for transmitting control information, and this method includes：Corresponding time-domain resource is distributed for the down control channel PDCCH of each covering grade in multiple different covering grades, the time-domain resource of the PDCCH distribution of each covering grade is different；To terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed.The embodiment of the present invention distributes different time-domain resources by the PDCCH for different covering grades, therefore each terminal device can be decoded to the PDCCH of affiliated covering grade, so as to reduce the power consumption of terminal device.
Description
The present invention relates to the communications field, more particularly, to a kind of method and apparatus for transmitting control information.
Internet of Things (English：Internet of things, write a Chinese character in simplified form：IoT) it is " the connected internet of thing thing ".The user terminal of internet extend to enter row information between any article and article and exchanges and communicate by it.Such communication mode is also referred to as inter-machine communication (English：Machine type communications, write a Chinese character in simplified form：MTC), the node of communication therein is referred to as MTC terminal.
Typical Internet of Things, which is applied, includes intelligent meter data recording, smart home etc., because Internet of Things needs to apply in several scenes, such as from outdoor to interior, from ground to underground, thus the design to Internet of Things proposes many special requirements, for example, the equipment in Internet of Things needs low rate, low cost, low energy consumption etc..
Third generation partner program (English：3rd Generation Partnership Project, write a Chinese character in simplified form：3GPP) in GSM EDGE Radio Access Network (English：GSM EDGE Radio Acess Network, English：GERAN the method for) having passed through a new research topic in 62 plenary sessions to study the Internet of Things for supporting extremely low complexity and low cost in cellular networks.Wherein, arrowband OFDM (English：Narrow-Band Orthogonal Frequency Division Multiple Access, write a Chinese character in simplified form：NB OFDMA) scheme turn into alternative.
In NB OFDMA schemes, base station transfers data to terminal device by descending transmission channel.Terminal device is according to Physical Downlink Control Channel (Physical Downlink Control Channel, control signaling scheduling Physical Downlink Shared Channel (Physical Downlink Shared Channel in referred to as " PDCCH "), referred to as " PDSCH ") receive downlink data, control signaling in wherein PDCCH can be specially descending control signaling (Downlink Control Information, referred to as " DCI "), DCI is used for instruction terminal equipment and carries out a series of behaviors, how downlink data is received including instruction terminal equipment, how upstream data is sent, how transmission power adjustment etc. is carried out.
But, in the LTE system using OFDMA, obtained for the related schedule information (such as DCI) in the PDCCH under different channel conditions by terminal device blind Detecting mode, but the mode of this blind Detecting is not suitable for applying in NB OFDMA systems, because such blind Detecting mode does not meet the requirement to low cost and low energy consumption.
The content of the invention
The present invention provides a kind of method and apparatus for transmitting control information, can reduce equipment power dissipation.
In a first aspect, in a kind of arrowband orthogonal frequency division multiple access system control information transmission method, including：Corresponding time-domain resource is distributed for the physical downlink control channel PDCCH of each covering grade in multiple different covering grades, the time-domain resource of the PDCCH distribution of each covering grade is different；To terminal device send configuration information, the configuration information includes the information for the time-domain resource that the PDCCH for each covering grade is distributed.
With reference in a first aspect, in the first possible implementation of first aspect, methods described also includes：According to the time-domain resource of the PDCCH distribution for being each covering grade in multiple different covering grades, the PDCCH of the different covering grades is sent to the terminal device.
With reference to the first possible implementation of first aspect or first aspect, in second of possible implementation of first aspect, described is that the down control channel PDCCH of each covering grade in multiple different covering grades distributes corresponding time-domain resource, including：It is that the PDCCH of each covering grade distributes corresponding time-domain resource according to the quantity for the terminal device for belonging to each covering grade.
With reference to first aspect or the first to second possible implementation of first aspect, in the third possible implementation of first aspect, described is that the down control channel PDCCH of each covering grade in multiple different covering grades distributes corresponding time-domain resource, including：Determine the PDCCH of each covering grade repetition period and the orthogonal frequency division multiplex OFDM symbol lengths shared by the PDCCH of each covering grade.
It is described to terminal device send configuration information in the 4th kind of possible implementation of first aspect with reference to first aspect or first aspect first to the third possible implementation, including：Send and broadcast the message to the terminal device, the configuration information is carried in the broadcast message；Or to the terminal device pilot signal transmitted, the configuration information is carried in the pilot signal.
Second aspect there is provided a kind of transmission method of control information in arrowband OFDM OFDMA system, including：Covering grade of the terminal device according to belonging to the terminal device receives the down control channel PDCCH of the covering grade；The terminal device is decoded to the PDCCH of the covering grade.
With reference to second aspect, in the first possible implementation of second aspect, covering grade of the terminal device according to belonging to the terminal device receives the down control channel PDCCH of the covering grade, including：The terminal device receives the configuration information that the network equipment is sent；Covering grade of the terminal device according to belonging to the configuration information reception terminal device that the network equipment is sent
Down control channel PDCCH.
With reference to the first possible implementation of second aspect, in second of possible implementation of second aspect, the configuration information includes the information for the time-domain resource that the network equipment is the PDCCH distribution belonging to the terminal device.
With reference to second of possible implementation of second aspect, in the third possible implementation of second aspect, the orthogonal frequency division multiplex OFDM symbol lengths shared by repetition period and the PDCCH of the time-domain resource including the PDCCH.
With reference to second aspect or second aspect first to the third possible implementation, in the 4th kind of possible implementation of second aspect, before the down control channel PDCCH that the configuration information that the terminal device is sent according to the network equipment receives the covering grade belonging to the terminal device, methods described also includes：The terminal device receives in the broadcast message that the network equipment is sent, the broadcast message and carries the configuration information；Or the terminal device receives in the pilot signal that the network equipment is sent, the pilot signal and carries the configuration information.
The third aspect there is provided a kind of network equipment, including：Allocation unit, the allocation unit is used to distribute corresponding time-domain resource for the down control channel PDCCH of each covering grade in multiple different covering grades, and the time-domain resource of the PDCCH distribution of each covering grade is different；Transmitting element, the transmitting element is used for terminal device send configuration information, and the configuration information includes the information for the time-domain resource that the PDCCH for each covering grade is distributed.
With reference to the third aspect, in the first possible implementation of the third aspect, the transmitting element is specifically additionally operable to the time-domain resource according to the PDCCH distribution for being each covering grade in multiple different covering grades, and the PDCCH of the different covering grades is sent to the terminal device.
With reference to the first possible implementation of the third aspect or the third aspect, in second of possible implementation of the third aspect, the allocation unit, specifically for the quantity according to the terminal device for belonging to each covering grade, is that the PDCCH of each covering grade distributes corresponding time-domain resource.
With reference to the third aspect or the first to second possible implementation of the third aspect, in the third possible implementation of the third aspect, the allocation unit is additionally operable to determine the PDCCH of each covering grade repetition period and the orthogonal frequency division multiplex OFDM symbol lengths shared by the PDCCH of each covering grade.
With reference to the third aspect or the third aspect first to the third possible implementation, in the 4th kind of possible implementation of the third aspect, the transmitting element specifically for：Send and broadcast the message to the terminal device, the configuration information is carried in the broadcast message；Or send pilot tone to the terminal device
The configuration information is carried in signal, the pilot signal.
Fourth aspect there is provided a kind of terminal device, including：Receiving unit, the covering grade that the receiving unit is used for according to belonging to the terminal device receives the down control channel PDCCH of the covering grade；Decoding unit, the decoding unit is used to decode the PDCCH of the covering grade.
With reference to fourth aspect, in the first possible implementation of fourth aspect, the receiving unit specifically for：Receive the configuration information that the network equipment is sent；The down control channel PDCCH of covering grade according to belonging to the configuration information reception terminal device that the network equipment is sent.
With reference to the first possible implementation of fourth aspect, in second of possible implementation of fourth aspect, the configuration information includes the time-domain resource that the network equipment is the PDCCH distribution belonging to the terminal device.
With reference to second of possible implementation of fourth aspect, in the third possible implementation of fourth aspect, the orthogonal frequency division multiplex OFDM symbol lengths shared by repetition period and the PDCCH of the time-domain resource including the PDCCH.
With reference to fourth aspect or fourth aspect first to the third possible implementation, the receiving unit is additionally operable to：Receive in the broadcast message that the network equipment is sent, the broadcast message and carry the configuration information；Or receive in the pilot signal that the network equipment is sent, the pilot signal and carry the configuration information.
The embodiment of the present invention for the down control channel PDCCH of each covering grade in multiple different covering grades by distributing corresponding time-domain resource, and to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed, therefore terminal device can be decoded to the PDCCH of affiliated covering grade, can reduce the power consumption of terminal device.
Technical scheme in order to illustrate the embodiments of the present invention more clearly, the required accompanying drawing used in the embodiment of the present invention will be briefly described below, apparently, drawings described below is only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the transmission method of the control information of one embodiment of the invention.
Fig. 2 is the transmission method of the control information of another embodiment of the present invention.
Fig. 3 is that the downlink control channel time domain without covering grade of one embodiment of the invention is multiplexed schematic diagram.
Fig. 4 is the schematic block diagram of the equipment of one embodiment of the invention.
Fig. 5 is the schematic block diagram of the equipment of another embodiment of the present invention.
Fig. 6 is the schematic block diagram of the equipment of another embodiment of the present invention.
Fig. 7 is the schematic block diagram of the equipment of another embodiment of the present invention.
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
Fig. 1 is the indicative flowchart of the transmission method of the control information of one embodiment of the invention.Fig. 1 method can be performed by base station.This method includes：
110, it is that the down control channel PDCCH of each covering grade in multiple different covering grades distributes corresponding time-domain resource, the time-domain resource of the PDCCH distribution of each covering grade is different.
120, to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed.
Specifically, in step 110, the network equipment (such as base station) can be that PDCCH distributes time-domain resource according to covering grade, and the PDCCH of different covering grades is distinguished in time domain.In the step 120, base station will carry information of the base station for the PDCCH of the different covering grades time-domain resources distributed to terminal device send configuration information, in the configuration information, in order to which terminal device can receive the control information that base station is sent according to the configuration information.
Specifically, in coverage enhancement (English：Coverage Enhancement, CE) aspect, have access to network to carry in the larger MTC device of path loss such as basement and service, it is to realize one of method of coverage enhancement repeatedly to transmit.Therefore, the environment residing for different MTC devices is different, and coverage enhancement demand is also different.If it is covering grade (Coverage Class) to define coverage enhancement demand size, then, the environment residing for different MTC devices is different, and the covering grade of these MTC devices is also different.Equally exemplified by repeating to transmit, the different MTC device of covering grade needs the number of times for carrying out repetition transmission also different.
It should be understood that terminal device (such as MTC device) is operated under different overlay environments, according to the demand of the quantity of terminal device, covering distribution and business, system defines multiple covering grades.Cause
This, the terminal device of the PDCCH covering grades corresponding to belonging to of each covering grade is corresponding, in other words, the PDCCH of corresponding different covering grades has been divided according to the different covering grades of terminal device, above-mentioned terminal device can refer to a terminal device, multiple terminal devices can also be referred to, the invention is not restricted to this.
The embodiment of the present invention for the down control channel PDCCH of each covering grade in multiple different covering grades by distributing corresponding time-domain resource, and to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed, therefore terminal device can be decoded to the PDCCH of affiliated covering grade, can reduce the power consumption of terminal device.
Alternatively, as one embodiment of the invention, the time-domain resource distributed according to the PDCCH for each covering grade in multiple different covering grades sends the PDCCH of different covering grades to terminal device.
Specifically, base station by according to for different covering grades PDCCH time-domain resource, the PDCCH of multiple different covering grades is sent to terminal device, in order to which the covering grade information of the configuration message that terminal device will be sent according to the base station received, and combination itself measurement decodes PDCCH in corresponding covering grade.
Alternatively, it is that the down control channel PDCCH of each covering grade in multiple different covering grades distributes corresponding time-domain resource as one embodiment of the invention, including：It is that the PDCCH of each covering grade distributes corresponding time-domain resource according to the quantity for the terminal device for belonging to each covering grade.
It should be understood that the PDCCH that can also be defined as each covering grade according to other characterisitic parameters distributes corresponding time-domain resource, the invention is not restricted to this.
Alternatively, it is that the down control channel PDCCH of each covering grade in multiple different covering grades distributes corresponding time-domain resource as one embodiment of the invention, including：It is determined that the PDCCH repetition period of each covering grade and the orthogonal frequency division multiplex OFDM symbol lengths shared by the PDCCH of each covering grade.
It should be understood that the corresponding time-domain resource of down control channel PDCCH distribution for each covering grade in multiple different covering grades can also include determining the resource ratio according to shared by the PDCCH of each covering grade, the invention is not restricted to this.
It should be understood that determining that the PDCCH of each covering grade repetition period refers to that base station determines which kind of cycle to send the PDCCH of each covering grade with.
Specifically, the running time-frequency resource of the system based on arrowband OFDMA can be divided into a netted infrastructure resource, and a grid takes a minimum time frequency unit.Multiple continuous running time-frequency resource grids are defined as a resource block (block) generally in resource allocation.In general, a physical channel (example
Such as PDCCH or PDSCH) take one or more block.It therefore, it can as the repetition period of the different resource blocks of the PDCCH distribution of different covering grades, and the resource block shared by the PDCCH of the covering grade.
Specifically, for example, an a length of 480ms of radio frames, the PDCCH cycles of the first covering grade are set to 80ms, 160ms is set to the PDCCH cycles of the second covering grade, 320ms is set to the PDCCH cycles of the 3rd covering grade.
Alternatively, as one embodiment of the invention, to terminal device send configuration information, including：Send and broadcast the message to terminal device, configuration information is carried in the broadcast message；Or to terminal device pilot signal transmitted, configuration information is carried in the pilot signal.
Specifically, the time-domain resource that base station can be distributed by broadcast message or pilot frequency configuration instruction terminal equipment for the PDCCH of different covering grades, the time-domain resource not only includes the resource ratio shared by the PDCCH of the OFDM symbol number or different covering grades shared by the PDCCH of some covering grade, includes the repetition period of the time-domain resource of the covering grade.
Terminal device number, terminal device number of paging dispatched due to up-downgoing etc. is not fixed, therefore the message length in PDCCH is not also fixed.In addition, MTC device is operated under different overlay environments, required covering grade is different, and corresponding resource distribution is different under different covering grades, and resource can more efficiently be utilized by so configuring different resources according to MTC equipment covering grade.
The embodiment of the present invention for the down control channel PDCCH of each covering grade in multiple different covering grades by distributing corresponding time-domain resource, and to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed, therefore terminal device can be decoded to the PDCCH of affiliated covering grade, can reduce the power consumption of terminal device.
Fig. 2 is the indicative flowchart of the transmission method of the control information of one embodiment of the invention.The executive agent of this method can be subscriber terminal equipment.This method includes：
210, covering grade of the terminal device according to belonging to the terminal device receives the down control channel PDCCH of the covering grade.
220, terminal device is decoded to the PDCCH of the covering grade.
Specifically, in step 210, covering grade of the terminal device according to oneself receives the down control channel PDCCH of corresponding covering grade, and schedule information entrained in the PDCCH of the covering grade is decoded.
The embodiment of the present invention distributes corresponding time-domain resource by the down control channel PDCCH for each covering grade in multiple different covering grades, and to terminal device send configuration information, the configuration information
Include the information of the time-domain resources distributed of the PDCCH for each covering grade, therefore terminal device can be decoded to the PDCCH of affiliated covering grade, can reduce the power consumption of terminal device.
Alternatively, as one embodiment of the invention, covering grade of the terminal device according to belonging to the terminal device receives the down control channel PDCCH of the covering grade, including：Terminal device receives the configuration information that the network equipment is sent；The down control channel PDCCH of covering grade of the terminal device according to belonging to the configuration information that the network equipment is sent receives the terminal device.
Specifically, when terminal device receives the PDCCH for different covering grades of base station transmission time-domain resource, the configuration message that terminal device will be sent according to the base station received, and combine PDCCH decoding of the covering grade information to corresponding covering grade of itself measurement.
Specifically, if a terminal device detects corresponding schedule information in the covering grade belonging to oneself, according to the schedule information carried in the PDCCH of the covering grade, corresponding data are decoded；If being not detected by corresponding schedule information on the PDCCH of covering grade of the terminal device belonging to it, then detected again on the next cycle of the covering grade, or, terminal device can convert covering grade, receive the PDCCH under new covering grade.
Because the terminal device of each covering grade is decoded in corresponding covering grade to PDCCH, it can so reduce terminal device and the complexity that decoding is brought is carried out on the simultaneous channels of PDCCH of multiple covering grades.
Alternatively, as one embodiment of the invention, after terminal device is decoded to the PDCCH of affiliated covering grade, if it is determined that after the schedule information that terminal device does not need, resting state will be quickly transferred to, so as to the power consumption of further reduction terminal device.
Alternatively, as one embodiment of the invention, configuration information includes the information for the time-domain resource that the network equipment is the PDCCH distribution belonging to terminal device.
Specifically, because configuration information includes the information for the time-domain resource that the network equipment is the PDCCH distribution belonging to terminal device, therefore terminal device is received after the configuration information that base station is sent, the PDCCH of covering grade belonging to terminal device time-domain resource can be known according to the configuration information, in order to receive the PDCCH of corresponding covering grade in the time-domain resource.
Alternatively, as one embodiment of the invention, the down control channel PDCCH of covering grade of the terminal device according to belonging to the configuration information receiving terminal apparatus that the network equipment is sent, including：The PDCCH of covering grade of the terminal device in time-domain resource belonging to receiving terminal apparatus.
Alternatively, as one embodiment of the invention, the orthogonal frequency division multiplex OFDM symbol lengths shared by repetition period and PDCCH of the time-domain resource including PDCCH.
It should be understood that the time-domain resource can also include the resource ratio shared by the PDCCH.
Alternatively, as one embodiment of the invention, before the configuration information that terminal device is sent according to the network equipment receives the down control channel PDCCH of the covering grade belonging to the terminal device, method also includes：Terminal device, which is received, carries configuration message in the broadcast message that the network equipment is sent, the broadcast message；Or terminal device receives and configuration message is carried in the pilot signal that the network equipment is sent, the pilot signal.
Specifically, the time-domain resource that base station can be distributed by the PDCCH of the covering grade belonging to broadcast message or pilot frequency configuration instruction terminal equipment, the time-domain resource not only includes the OFDM symbol number shared by the PDCCH of the covering grade or the resource ratio shared by PDCCH, includes the repetition period of the time-domain resource of the covering grade.
The embodiment of the present invention for the down control channel PDCCH of each covering grade in multiple different covering grades by distributing corresponding time-domain resource, and to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed, therefore terminal device can be decoded to the PDCCH of affiliated covering grade, can reduce the power consumption of terminal device.
Fig. 3 is that the downlink control channel time domain without covering grade of the embodiment of the present invention is multiplexed schematic diagram.
Narrowband systems based on OFDMA can regard a netted resource structures as, and a grid takes a minimum time frequency unit.Generally regard the continuous resource grid of multiple time-frequencies as a resource block (block) in resource allocation.One physical channel (such as PDCCH or PDSCH) takes one or more block.In embodiments of the present invention, block passage times shared by the PDCCH of different covering grades make a distinction.As shown in figure 3, abscissa characterizes the distribution condition of time-domain resource, before the PDCCH of low covering grade is placed on most, the PDCCH of medium covering grade is placed on centre, and the PDCCH of high covering grade is put into finally.
Therefore, the power short time of base station can be concentrated on a covering grade by the design of this time-division, so as to improve PDCCH reception performance and then reduce the reception power consumption of terminal.Terminal device can be so further to reduce the power consumption of terminal device after the PDCCH of corresponding covering grade is decoded, it is determined that be quickly transferred to sleep state after without corresponding schedule information simultaneously.
It should be noted that a PDCCH block is not required to take whole frequency band (for example, 180kHz), that is to say, that PDCCH block can also be multiplexed with other channels, such as PDSCH in frequency.Meanwhile, in a frame, it is also possible to there is the PDCCH block of multiple same covering grades.
In base station side, base station can be configured the PDCCH block of different covering grades by broadcast message or pilot tone etc., include PDCCH block repetition period, shared symbol time length or the resource ratio of different covering grades etc..For example, it is assumed that an a length of 480ms of radio frames, for just
Normal coverage condition, can configure the PDCCH cycles for 80ms；And for medium covering grade, the PDCCH cycles can be configured for 160ms；For maximal cover grade, be configurable to 320ms, then 2 480ms cycles could constitute the PDCCH block transmission cycles of a maximal cover grade.
In terminal user side, message is configured according to the PDCCH for receiving the different covering grades from base station, and PDCCH is decoded in corresponding covering grade according to the covering grade information of itself measurement.If detecting the PDCCH includes corresponding schedule information, corresponding data are decoded according to the schedule information.If not detecting corresponding PDCCH, the PDCCH or conversion covering grade in next PDCCH cycles is waited to decode the PDCCH under new covering grade under the covering grade.
The embodiment of the present invention for the down control channel PDCCH of each covering grade in multiple different covering grades by distributing corresponding time-domain resource, and to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed, therefore terminal device can be decoded to the PDCCH of affiliated covering grade, can reduce the power consumption of terminal device.
Above in conjunction with Fig. 1 to Fig. 3 from the transmission method for describing control information in detail, the transmission equipment for control information is discussed in detail with reference to Fig. 4 to Fig. 7.
Fig. 4 is the schematic block diagram of the equipment of one embodiment of the invention.As shown in figure 4, the equipment 400 includes：
Allocation unit 410, allocation unit 410 is used to distribute corresponding time-domain resource for the down control channel PDCCH of each covering grade in multiple different covering grades, and the time-domain resource of the PDCCH distribution of each covering grade is different；
Transmitting element 420, transmitting element 420 is used for terminal device send configuration information, and the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed.
The embodiment of the present invention for the down control channel PDCCH of each covering grade in multiple different covering grades by distributing corresponding time-domain resource, and to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed, therefore terminal device can be decoded in affiliated covering grade to PDCCH, can reduce the power consumption of terminal device.
Alternatively, as one embodiment of the invention, transmitting element 420 is specifically additionally operable to the time-domain resource according to the PDCCH distribution for being each covering grade in multiple different covering grades, and the PDCCH of different covering grades is sent to terminal device.
Alternatively, as one embodiment of the invention, allocation unit 410, specifically for the quantity according to the terminal device for belonging to each covering grade, is that the PDCCH of each covering grade distributes corresponding time-domain resource.
Alternatively, as one embodiment of the invention, allocation unit 410 is additionally operable to determine the PDCCH of each covering grade repetition period and the orthogonal frequency division multiplex OFDM symbol lengths shared by the PDCCH of each covering grade.
Alternatively, as one embodiment of the invention, transmitting element 420 specifically for：Send and broadcast the message to terminal device, configuration information is carried in broadcast message；Or to terminal device pilot signal transmitted, the configuration information is carried in pilot signal.
The embodiment of the present invention for the down control channel PDCCH of each covering grade in multiple different covering grades by distributing corresponding time-domain resource, and to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed, therefore terminal device can be decoded in affiliated covering grade to PDCCH, can reduce the power consumption of terminal device.
Fig. 5 is the schematic block diagram of the equipment of another embodiment of the present invention.As shown in figure 5, the equipment 500 includes：
Receiving unit 510, the covering grade that receiving unit 510 is used for according to belonging to terminal device receives the down control channel PDCCH of the covering grade；
Decoding unit 520, the decoding unit is used to decode the PDCCH of the covering grade.
The embodiment of the present invention for the down control channel PDCCH of each covering grade in multiple different covering grades by distributing corresponding time-domain resource, and to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed, therefore terminal device can be decoded in affiliated covering grade to PDCCH, can reduce the power consumption of terminal device.
Alternatively, as one embodiment of the invention, receiving unit 510 specifically for：Receive the configuration information that the network equipment is sent；The down control channel PDCCH of covering grade according to belonging to the configuration information receiving terminal apparatus that the network equipment is sent.
Alternatively, as one embodiment of the invention, configuration information includes the time-domain resource that the network equipment is the PDCCH distribution described in the terminal device.
Alternatively, as one embodiment of the invention, the orthogonal frequency division multiplex OFDM symbol lengths shared by repetition period and PDCCH of the time-domain resource including PDCCH.
Alternatively, as one embodiment of the invention, receiving unit 510 is additionally operable to：Receive in the broadcast message that the network equipment is sent, the broadcast message and carry the configuration information；Or the pilot signal that the network equipment is sent is received, configuration information is carried in the pilot signal.
The embodiment of the present invention distributes corresponding time-domain resource by the down control channel PDCCH for each covering grade in multiple different covering grades, and to terminal device send configuration information, the configuration information
Include the information of the time-domain resources distributed of the PDCCH for each covering grade, therefore terminal device can be decoded to the PDCCH of affiliated covering grade, can reduce the power consumption of terminal device.
Fig. 6 is the schematic block diagram of the equipment of another embodiment of the present invention.
As shown in fig. 6, the embodiment of the present invention additionally provides a kind of equipment 600, the equipment 600 includes processor 601, memory 602, bus system 603 and transmitter 604.Wherein, processor 601, memory 602 are connected with transmitter 604 by bus system 603, and the memory 602 is used for store instruction, and the processor 601 is used for the instruction for performing the memory 602 storage, and controls the transmitter 604 to send information.Wherein, processor 601 is used for：Corresponding time-domain resource is distributed for the down control channel PDCCH of each covering grade in multiple different covering grades, the time-domain resource of the PDCCH distribution of each covering grade is different；The transmitter 604 is used for terminal device send configuration information, and the configuration information includes the information for the time-domain resource that the PDCCH for each covering grade is distributed.
Therefore, the embodiment of the present invention for the down control channel PDCCH of each covering grade in multiple different covering grades by distributing corresponding time-domain resource, and to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed, therefore terminal device can be decoded on the PDCCH of affiliated covering grade, can reduce the power consumption of terminal device.
It should be understood that, in embodiments of the present invention, the processor 601 can be CPU (Central Processing Unit, referred to as " CPU "), the processor 601 can also be other general processors, digital signal processor (DSP), application specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) or other PLDs, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or the processor can also be any conventional processor etc..
The memory 602 can include read-only storage and random access memory, and provide instruction and data to processor 601.The a part of of memory 602 can also include nonvolatile RAM.For example, memory 602 can be with the information of storage device type.
The bus system 603 can also include power bus, controlling bus and status signal bus in addition etc. in addition to including data/address bus.But for the sake of clear explanation, various buses are all designated as bus system 603 in figure.
In implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 601 or the instruction of software form.The step of method with reference to disclosed in the embodiment of the present invention, can be embodied directly in hardware processor and perform completion, or perform completion with the hardware in processor and software module combination.Software module can be located in random access memory, flash memory, read-only storage, the ripe storage medium in this area such as programmable read only memory or electrically erasable programmable memory, register.
The storage medium is located at memory 602, and processor 601 reads the information in memory 602, the step of completing the above method with reference to its hardware.To avoid repeating, it is not detailed herein.
Alternatively, as one embodiment of the invention, transmitter 604 is additionally operable to：The time-domain resource distributed according to the PDCCH for each covering grade in multiple different covering grades, the PDCCH of each covering grade is sent to terminal device.
Alternatively, as one embodiment of the invention, processor 601 is additionally operable to：It is that the PDCCH of each covering grade distributes corresponding time-domain resource according to the quantity for the terminal device for belonging to each covering grade.
Alternatively, as one embodiment of the invention, processor 601 is additionally operable to：It is determined that the PDCCH repetition period of each covering grade and the orthogonal frequency division multiplex OFDM symbol lengths shared by the PDCCH of each covering grade.
Alternatively, as one embodiment of the invention, transmitter 604 is additionally operable to：Send and broadcast the message to terminal device, the configuration information is carried in the broadcast message；Or to terminal device pilot signal transmitted, the configuration information is carried in the pilot signal.
Therefore, the embodiment of the present invention for the down control channel PDCCH of each covering grade in multiple different covering grades by distributing corresponding time-domain resource, and to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed, therefore terminal device can be decoded to the PDCCH of affiliated covering grade, can reduce the power consumption of terminal device.
Fig. 7 is the schematic block diagram of the equipment of another embodiment of the present invention.
As shown in fig. 7, the embodiment of the present invention additionally provides a kind of equipment 700, the equipment 700 includes processor 701, memory 702, bus system 703 and receiver 7044.Wherein, processor 701, memory 702 are connected with receiver 704 by bus system 703, and the memory 702 is used for store instruction, and the processor 701 is used for the instruction for performing the memory 702 storage, and controls the receiver 704 to send information.Wherein, the covering grade that the receiver 704 is used for according to belonging to terminal device receives the down control channel PDCCH of the covering grade；Processor 701 is used for：The decoding unit is used to decode the PDCCH of the covering grade.
Therefore, the embodiment of the present invention for the down control channel PDCCH of each covering grade in multiple different covering grades by distributing corresponding time-domain resource, and to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed, therefore terminal device can be decoded on the PDCCH of affiliated covering grade, can reduce the power consumption of terminal device.
It should be understood that in embodiments of the present invention, the processor 701 can be CPU (Central Processing Unit, referred to as " CPU "), the processor 701 can also be other general processors,
Digital signal processor (DSP), application specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) or other PLDs, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or the processor can also be any conventional processor etc..
The memory 702 can include read-only storage and random access memory, and provide instruction and data to processor 701.The a part of of memory 702 can also include nonvolatile RAM.For example, memory 702 can be with the information of storage device type.
The bus system 703 can also include power bus, controlling bus and status signal bus in addition etc. in addition to including data/address bus.But for the sake of clear explanation, various buses are all designated as bus system 703 in figure.
In implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 701 or the instruction of software form.The step of method with reference to disclosed in the embodiment of the present invention, can be embodied directly in hardware processor and perform completion, or perform completion with the hardware in processor and software module combination.Software module can be located in random access memory, flash memory, read-only storage, the ripe storage medium in this area such as programmable read only memory or electrically erasable programmable memory, register.The storage medium is located at memory 702, and processor 701 reads the information in memory 702, the step of completing the above method with reference to its hardware.To avoid repeating, it is not detailed herein.
Alternatively, as one embodiment of the invention, receiver 704 is additionally operable to：Receive the configuration information that the network equipment is sent；Processor 701 is used for the down control channel PDCCH of the covering grade according to belonging to the configuration information receiving terminal apparatus that the network equipment is sent.
Alternatively, as one embodiment of the invention, configuration information includes the time-domain resource that the network equipment is the PDCCH distribution belonging to terminal device.
Alternatively, as one embodiment of the invention, the orthogonal frequency division multiplex OFDM symbol lengths shared by repetition period and PDCCH of the time-domain resource including PDCCH.
Alternatively, as one embodiment of the invention, receiver 704 is additionally operable to：Receive in the broadcast message that the network equipment is sent, the broadcast message and carry the configuration information；Or the pilot signal that the network equipment is sent is received, configuration information is carried in the pilot signal.
Therefore, the embodiment of the present invention for the down control channel PDCCH of each covering grade in multiple different covering grades by distributing corresponding time-domain resource, and to terminal device send configuration information, the configuration information is included for the information of the PDCCH of each covering grade time-domain resources distributed, therefore terminal device can be decoded to the PDCCH of affiliated covering grade, can reduce the power consumption of terminal device.
Claims (20)
- The transmission method of control information in a kind of arrowband orthogonal frequency division multiple access system, it is characterised in that including：Corresponding time-domain resource is distributed for the physical downlink control channel PDCCH of each covering grade in multiple different covering grades, the time-domain resource of the PDCCH distribution of each covering grade is different；To terminal device send configuration information, the configuration information includes the information for the time-domain resource that the PDCCH for each covering grade is distributed.
- According to the method described in claim 1, it is characterised in that methods described also includes：According to the time-domain resource of the PDCCH distribution for being each covering grade in multiple different covering grades, the PDCCH of the different covering grades is sent to the terminal device.
- Method according to claim 1 or 2, it is characterised in that described is that the down control channel PDCCH of each covering grade in multiple different covering grades distributes corresponding time-domain resource, including：It is that the PDCCH of each covering grade distributes corresponding time-domain resource according to the quantity for the terminal device for belonging to each covering grade.
- According to the method in any one of claims 1 to 3, it is characterised in that described is that the down control channel PDCCH of each covering grade in multiple different covering grades distributes corresponding time-domain resource, including：Determine the PDCCH of each covering grade repetition period and the orthogonal frequency division multiplex OFDM symbol lengths shared by the PDCCH of each covering grade.
- Method according to any one of claim 1 to 4, it is characterised in that described to terminal device send configuration information, including：Send and broadcast the message to the terminal device, the configuration information is carried in the broadcast message；OrTo the terminal device pilot signal transmitted, the configuration information is carried in the pilot signal.
- The transmission method of control information in a kind of arrowband OFDM OFDMA system, it is characterised in that including：Covering grade of the terminal device according to belonging to the terminal device receives the down control channel PDCCH of the covering grade；The terminal device is decoded to the PDCCH of the covering grade.
- Method according to claim 6, it is characterised in that covering grade of the terminal device according to belonging to the terminal device receives the down control channel PDCCH of the covering grade, including：The terminal device receives the configuration information that the network equipment is sent；The down control channel PDCCH of covering grade of the terminal device according to belonging to the configuration information reception terminal device that the network equipment is sent.
- Method according to claim 7, it is characterised in that the configuration information includes the information for the time-domain resource that the network equipment is the PDCCH distribution belonging to the terminal device.
- Method according to claim 8, it is characterised in that the orthogonal frequency division multiplex OFDM symbol lengths shared by repetition period and the PDCCH of the time-domain resource including the PDCCH.
- Method according to any one of claim 7 to 9, it is characterised in that before the down control channel PDCCH that the configuration information that the terminal device is sent according to the network equipment receives the covering grade belonging to the terminal device, methods described also includes：The terminal device receives in the broadcast message that the network equipment is sent, the broadcast message and carries the configuration information；OrThe terminal device receives in the pilot signal that the network equipment is sent, the pilot signal and carries the configuration information.
- A kind of network equipment, it is characterised in that including：Allocation unit, the allocation unit is used to distribute corresponding time-domain resource for the down control channel PDCCH of each covering grade in multiple different covering grades, and the time-domain resource of the PDCCH distribution of each covering grade is different；Transmitting element, the transmitting element is used for terminal device send configuration information, and the configuration information includes the information for the time-domain resource that the PDCCH for each covering grade is distributed.
- Equipment according to claim 11, it is characterized in that, the transmitting element is specifically additionally operable to the time-domain resource according to the PDCCH distribution for being each covering grade in multiple different covering grades, and the PDCCH of the different covering grades is sent to the terminal device.
- Equipment according to claim 11 or 12, it is characterised in that the allocation unit, specifically for the quantity according to the terminal device for belonging to each covering grade, is that the PDCCH of each covering grade distributes corresponding time-domain resource.
- Equipment according to any one of claim 11 to 13, it is characterised in that the allocation unit is additionally operable to determine the PDCCH of each covering grade repetition period and the orthogonal frequency division multiplex OFDM symbol lengths shared by the PDCCH of each covering grade.
- Equipment according to any one of claim 11 to 14, it is characterised in that the transmitting element specifically for：Send and broadcast the message to the terminal device, the configuration information is carried in the broadcast message；OrTo the terminal device pilot signal transmitted, the configuration information is carried in the pilot signal.
- A kind of terminal device, it is characterised in that including：Receiving unit, the covering grade that the receiving unit is used for according to belonging to the terminal device receives the down control channel PDCCH of the covering grade；Decoding unit, the decoding unit is used to decode the PDCCH of the covering grade.
- Equipment according to claim 16, it is characterised in that the receiving unit specifically for：Receive the configuration information that the network equipment is sent；The down control channel PDCCH of covering grade according to belonging to the configuration information reception terminal device that the network equipment is sent.
- Equipment according to claim 17, it is characterised in that the configuration information includes the time-domain resource that the network equipment is the PDCCH distribution belonging to the terminal device.
- Equipment according to claim 18, it is characterised in that the orthogonal frequency division multiplex OFDM symbol lengths shared by repetition period and the PDCCH of the time-domain resource including the PDCCH.
- Equipment according to any one of claim 17 to 19, it is characterised in that the receiving unit is additionally operable to：Receive in the broadcast message that the network equipment is sent, the broadcast message and carry the configuration information；OrReceive in the pilot signal that the network equipment is sent, the pilot signal and carry the configuration information.
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| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2015/079694 WO2016187774A1 (en) | 2015-05-25 | 2015-05-25 | Control information transmission method and device |
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| CN107005354A true CN107005354A (en) | 2017-08-01 |
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| CN110622595A (en) * | 2017-08-10 | 2019-12-27 | Oppo广东移动通信有限公司 | Wireless communication method, network equipment and terminal equipment |
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