CN110139247A - The method and apparatus of physical channel transmission - Google Patents
The method and apparatus of physical channel transmission Download PDFInfo
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- CN110139247A CN110139247A CN201810129523.4A CN201810129523A CN110139247A CN 110139247 A CN110139247 A CN 110139247A CN 201810129523 A CN201810129523 A CN 201810129523A CN 110139247 A CN110139247 A CN 110139247A
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- 238000009826 distribution Methods 0.000 claims description 96
- 208000015979 hopping Diseases 0.000 claims 25
- 238000013468 resource allocation Methods 0.000 abstract description 14
- 230000003595 spectral effect Effects 0.000 abstract description 3
- 230000011664 signaling Effects 0.000 description 18
- 230000006854 communication Effects 0.000 description 11
- 238000004891 communication Methods 0.000 description 11
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Classifications
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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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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Abstract
The invention discloses a kind of physical channel transmission methods comprising: transmission sub-carrier resources are determined according to the configuration of base station；Physical channel is sent or received in the transmission sub-carrier resources.Compared with prior art, the present invention has been obviously improved the power spectral density of uplink transmitting, effectively realization coverage enhancement by the way that the resource allocation unit of transmitting physical channel is subdivided into subcarrier by PRB.
Description
Technical field
The present invention relates to wireless communication technology fields, more particularly, to a kind of method and apparatus of physical channel transmission.
Background technique
EMTC (enhanced Machine Type Communication, enhanced machine communication technology) is towards object
A kind of type of skill of working application.Compared to LTE terminal, eMTC terminal is more likely in the scene covered deeply, such as basement
Or underground pipe well, therefore eMTC achievees the purpose that enhancing covering using the mode hoisting power spectrum density for reducing transmission bandwidth.
After reducing bandwidth, the transmission bandwidth of eMTC is only 1080kHz, by 6 PRB (Physical continuous in LTE system
Resource Block, Physical Resource Block) composition mono- narrowband (narrowband) of eMTC, all physics channel dispatch of eMTC
As unit of the narrowband eMTC.Different according to LTE system band width configuration, the narrowband the eMTC quantity that can be disposed in band has with position
It is different.
In current eMTC system, base station indicates that narrowband indexes (narrowband index) first, for keeping terminal true
Determine PUSCH (Physical Uplink Share Channel, Physical Uplink Shared Channel) and transmits used PRB
Narrowband locating for (physical resource block, Physical Resource Block) further indicates being used for transmission in narrowband
The Physical Resource Block of PUSCH indexes (PRB index, physical resource block index).For covering pattern B
The terminal of (CE Mode B), base station can distribute be used for transmission the PRB of PUSCH be 1 or be located in same narrowband 2 it is continuous
PRB.For the terminal of covering pattern A (CE Mode A), base station can be that terminal sends PUSCH points according to the bandwidth ability of terminal
With PRB different numbers.
Resource is distributed for the transmission of physical channel as unit of PRB, adds somewhat to the power spectrum of uplink transmitting
Density, but still machine communication system is unable to satisfy to the further requirement of coverage enhancement.In view of this, it is necessary to provide a kind of energy
Enough solve the physical channel transmission method and equipment of above-mentioned technical problem.
Summary of the invention
It is an object of the invention to: overcome the deficiencies of the prior art and provide one kind can significantly improve power emission spectrum it is close
The physical channel transmission method and equipment of degree.
To achieve the goals above, the present invention provides a kind of physical channel transmission methods comprising following steps:
Transmission sub-carrier resources are determined according to the configuration of base station；
Physical channel is sent or received in the transmission sub-carrier resources.
It is preferably, described that transmission sub-carrier resources are determined according to the configuration of base station, comprising:
Determine that narrowband indexes according to the configuration of base station；
The sub-carrier resources for the distribution being located in narrowband are determined according to narrowband index；
Determine the transmission sub-carrier resources being located in the sub-carrier resources of distribution.
Preferably, the determination is located at the transmission sub-carrier resources in the sub-carrier resources of distribution, comprising: determines to be located at and divide
The number and index of transmission subcarrier in the sub-carrier resources matched.
Preferably, the determination is located at the number of the transmission subcarrier in the sub-carrier resources of distribution, comprising:
According to any one of the instruction of transmission subcarrier number, the position of distribution subcarrier, modulation coding scheme, position is determined
The number of transmission subcarrier in the sub-carrier resources of distribution.
Preferably, the determination is located at the index of the transmission subcarrier in the sub-carrier resources of distribution, comprising:
According to the index and cell exclusive identification code of distribution subcarrier, the transmission being located in the sub-carrier resources of distribution is determined
The index of subcarrier；Or
According to the index and radio network temporary identifier of distribution subcarrier, the biography being located in the sub-carrier resources of distribution is determined
The index of defeated subcarrier.
Preferably,
It is described send or receive physical channel in the transmission sub-carrier resources before, comprising: according to base station configuration
Modulation coding scheme instruction or transport block size instruction, the instruction of the determining and modulation coding scheme or transport block size instruction pair
Modulation coding scheme, transport block size and the resource unit number answered, wherein modulation coding scheme instruction or transport block size instruction
It presets with the corresponding relationship of modulation coding scheme, transport block size and resource unit number for system, or is carried according to transmission
Wave number or modulation system determine；
It is described to send or receive physical channel in the transmission sub-carrier resources, comprising: to be compiled according to identified modulation
Code mode, transport block size and resource unit number, send or receive physical channel in the transmission sub-carrier resources.
Preferably,
It is described in the transmission sub-carrier resources send physical channel before, comprising: according to the configuration of base station determine jump
Keep pouring in defeated frequency domain resource；
It is described to send physical channel in the transmission sub-carrier resources, comprising: in the frequency domain resource of the frequency-hopping transmissions
Upper transmission physical channel, the frequency domain resource of the frequency-hopping transmissions include the transmission sub-carrier resources.
It is preferably, described to send physical channel in the frequency domain resource of the frequency-hopping transmissions, comprising:
Physical channel is sent with frequency-hopping mode in the frequency domain resource of frequency-hopping transmissions, the frequency-hopping mode includes: with N number of son
Frame is a stepped-frequency interval, and N is positive integer, and identical transmission sub-carrier resources are used in each stepped-frequency interval, former and later two jumps
Frequency uses different transmission sub-carrier resources on interval；
Different transmission sub-carrier resources are used on former and later two described stepped-frequency intervals, comprising: former and later two stepped-frequency intervals
On transmission sub-carrier resources be located on the different Physical Resource Block PRB of identical narrowband；Or it is located at different narrow band but has identical
In narrowband on the different PRB of relative indexing；Or on the different PRB of different narrow band；Or the different sub-carrier positioned at identical PRB
On；The phase be all it is identical on frequency domain, described is not all different on frequency domain.
Preferably, the frequency domain resource that frequency-hopping transmissions are determined according to the configuration of base station, comprising:
Frequency-hopping transmissions narrowband index, frequency-hopping transmissions PRB index and frequency-hopping transmissions subcarrier rope are determined according to the configuration of base station
Draw；
Frequency hopping is determined according to frequency-hopping transmissions narrowband index, frequency-hopping transmissions PRB index and frequency-hopping transmissions sub-carrier indices
The frequency domain resource of transmission.
Preferably, the configuration according to base station determines that frequency-hopping transmissions narrowband indexes, comprising:
Determine that frequency-hopping transmissions narrowband indexes according to the parameter that base station configures, the parameter include distributed narrowband index,
Subframe numbers, frequency hopping direction instruction, stepped-frequency interval and frequency hopping shift or the parameter include distributed narrowband index, subframe
Number, stepped-frequency interval and frequency hopping narrowband grouping；
The frequency hopping direction instruction is closed for the relative position of other narrowbands used in frequency-hopping transmissions and distributed narrowband
System, the frequency hopping narrowband grouping is for determining narrowband resource used in frequency-hopping transmissions.
Preferably, the configuration according to base station determines frequency-hopping transmissions sub-carrier indices, comprising:
Determine that frequency-hopping transmissions sub-carrier indices, the parameter include between subframe index, frequency hopping according to the parameter that base station configures
Every the index with initial transmission subcarrier.
Preferably,
It is described that transmission sub-carrier resources are determined according to the configuration of base station, comprising: after determining offset according to the configuration of base station
Transmit sub-carrier resources；
It is described to send or receive physical channel in the transmission sub-carrier resources, comprising: the transmission after the offset
Physical channel is sent or received in sub-carrier resources.
Preferably, the transmission sub-carrier resources after offset, including following one are determined according to the configuration of base station:
The transmission sub-carrier resources after offset are determined according to the narrowband offset instruction of base station configuration；
According to the corresponding relationship of system bandwidth and narrowband offset manner, or according to bit map, obtains each narrowband and rise
The offset manner of beginning PRB index, the transmission sub-carrier resources after determining offset；
It is indicated according to the frequency domain starting location offset of the distributed physical resource of base station configuration to the physical resource distributed
Frequency offset is carried out, the transmission sub-carrier resources after determining offset, the frequency domain starting location offset of the distributed physical resource
Indicate to be used to indicate the offset that PRB index or starting sub-carrier indices are originated in the physical resource for distributing to physical channel transmission.
Preferably,
Physical channel is sent or received in the transmission sub-carrier resources after the offset, comprising: in following scene
The covering pattern of one: support section PRB transmission, covering pattern A, in covering pattern B, the transmission subcarrier after the offset
Physical channel is sent or received in resource.
To achieve the goals above, the present invention also provides a kind of user equipmenies comprising:
Transmission sub-carrier block is determined, for determining transmission sub-carrier resources according to the configuration of base station；
Transmitting physical channel module, for sending or receiving physical channel in the transmission sub-carrier resources.
It is preferably, described that transmission sub-carrier resources are determined according to the configuration of base station, comprising:
Determine that narrowband indexes according to the configuration of base station；
The sub-carrier resources for the distribution being located in narrowband are determined according to narrowband index；
Determine the transmission sub-carrier resources being located in the sub-carrier resources of distribution.
Preferably, the determination is located at the transmission sub-carrier resources in the sub-carrier resources of distribution, comprising: determines to be located at and divide
The number and index of transmission subcarrier in the sub-carrier resources matched.
Preferably, the determination is located at the number of the transmission subcarrier in the sub-carrier resources of distribution, comprising:
According to any one of the instruction of transmission subcarrier number, the position of distribution subcarrier, modulation coding scheme, position is determined
The number of transmission subcarrier in the sub-carrier resources of distribution.
Preferably, the determination is located at the index of the transmission subcarrier in the sub-carrier resources of distribution, comprising:
According to the index and cell exclusive identification code of distribution subcarrier, the transmission being located in the sub-carrier resources of distribution is determined
The index of subcarrier；Or
According to the index and radio network temporary identifier of distribution subcarrier, the biography being located in the sub-carrier resources of distribution is determined
The index of defeated subcarrier.
Preferably,
It is described send or receive physical channel in the transmission sub-carrier resources before, comprising: according to base station configuration
Modulation coding scheme instruction or transport block size instruction, the instruction of the determining and modulation coding scheme or transport block size instruction pair
Modulation coding scheme, transport block size and the resource unit number answered, wherein modulation coding scheme instruction or transport block size instruction
It presets with the corresponding relationship of modulation coding scheme, transport block size and resource unit number for system, or is carried according to transmission
Wave number or modulation system determine；
It is described to send or receive physical channel in the transmission sub-carrier resources, comprising: to be compiled according to identified modulation
Code mode, transport block size and resource unit number, send or receive physical channel in the transmission sub-carrier resources.
Preferably,
It is described in the transmission sub-carrier resources send physical channel before, comprising: according to the configuration of base station determine jump
Keep pouring in defeated frequency domain resource；
It is described to send physical channel in the transmission sub-carrier resources, comprising: in the frequency domain resource of the frequency-hopping transmissions
Upper transmission physical channel, the frequency domain resource of the frequency-hopping transmissions include the transmission sub-carrier resources.
It is preferably, described to send physical channel in the frequency domain resource of the frequency-hopping transmissions, comprising:
Physical channel is sent with frequency-hopping mode in the frequency domain resource of frequency-hopping transmissions, the frequency-hopping mode includes: with N number of son
Frame is a stepped-frequency interval, and N is positive integer, and identical transmission sub-carrier resources are used in each stepped-frequency interval, former and later two jumps
Frequency uses different transmission sub-carrier resources on interval；
Different transmission sub-carrier resources are used on former and later two described stepped-frequency intervals, comprising: former and later two stepped-frequency intervals
On transmission sub-carrier resources be located on the different Physical Resource Block PRB of identical narrowband；Or it is located at different narrow band but has identical
In narrowband on the different PRB of relative indexing；Or on the different PRB of different narrow band；Or the different sub-carrier positioned at identical PRB
On；The phase be all it is identical on frequency domain, described is not all different on frequency domain.
Preferably, the frequency domain resource that frequency-hopping transmissions are determined according to the configuration of base station, comprising:
Frequency-hopping transmissions narrowband index, frequency-hopping transmissions PRB index and frequency-hopping transmissions subcarrier rope are determined according to the configuration of base station
Draw；
Frequency hopping is determined according to frequency-hopping transmissions narrowband index, frequency-hopping transmissions PRB index and frequency-hopping transmissions sub-carrier indices
The frequency domain resource of transmission.
Preferably, the configuration according to base station determines that frequency-hopping transmissions narrowband indexes, comprising:
Determine that frequency-hopping transmissions narrowband indexes according to the parameter that base station configures, the parameter include distributed narrowband index,
Subframe numbers, frequency hopping direction instruction, stepped-frequency interval and frequency hopping shift or the parameter include distributed narrowband index, subframe
Number, stepped-frequency interval and frequency hopping narrowband grouping；
The frequency hopping direction instruction is closed for the relative position of other narrowbands used in frequency-hopping transmissions and distributed narrowband
System, the frequency hopping narrowband grouping is for determining narrowband resource used in frequency-hopping transmissions.
Preferably, the configuration according to base station determines frequency-hopping transmissions sub-carrier indices, comprising:
Determine that frequency-hopping transmissions sub-carrier indices, the parameter include between subframe index, frequency hopping according to the parameter that base station configures
Every the index with initial transmission subcarrier.
Preferably,
It is described that transmission sub-carrier resources are determined according to the configuration of base station, comprising: after determining offset according to the configuration of base station
Transmit sub-carrier resources；
It is described to send or receive physical channel in the transmission sub-carrier resources, comprising: the transmission after the offset
Physical channel is sent or received in sub-carrier resources.
Preferably, the transmission sub-carrier resources after offset, including following one are determined according to the configuration of base station:
The transmission sub-carrier resources after offset are determined according to the narrowband offset instruction of base station configuration；
According to the corresponding relationship of system bandwidth and narrowband offset manner, or according to bit map, obtains each narrowband and rise
The offset manner of beginning PRB index, the transmission sub-carrier resources after determining offset；
It is indicated according to the frequency domain starting location offset of the distributed physical resource of base station configuration to the physical resource distributed
Frequency offset is carried out, the transmission sub-carrier resources after determining offset, the frequency domain starting location offset of the distributed physical resource
Indicate to be used to indicate the offset that PRB index or starting sub-carrier indices are originated in the physical resource for distributing to physical channel transmission.
Preferably,
Physical channel is sent or received in the transmission sub-carrier resources after the offset, comprising: in following scene
The covering pattern of one: support section PRB transmission, covering pattern A, in covering pattern B, the transmission subcarrier after the offset
Physical channel is sent or received in resource.
Compared with prior art, technical effect of the invention includes but is not limited to: by by the resource of transmitting physical channel
Allocation unit is subdivided into subcarrier by PRB, has been obviously improved the power spectral density of uplink transmitting, effectively realization coverage enhancement.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
Those skilled in the art are also possible to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is the flow chart of physical channel transmission method of the present invention；
Fig. 2 is the schematic diagram of the first transmission sub-carrier distribution manner of the present invention；
Fig. 3 is the schematic diagram of second of transmission sub-carrier distribution manner of the present invention；
Fig. 4 is the schematic diagram of the third transmission sub-carrier distribution manner of the present invention；
Fig. 5 is the schematic diagram of the 4th kind of transmission sub-carrier distribution manner of the present invention；
Fig. 6 is the schematic diagram of the frequency domain resource configuration mode of the first frequency-hopping transmissions of the invention；
Fig. 7 is the schematic diagram of the frequency domain resource configuration mode of second of frequency-hopping transmissions of the invention；
Fig. 8 is the schematic diagram of the first physical channel resources offset configuration mode of the invention；
Fig. 9 is the schematic diagram of second of physical channel resources offset configuration mode of the invention；
Figure 10 is module frame chart of the present invention for the user equipment of physical channel transmission.
Specific embodiment
The embodiment of present disclosure is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining present disclosure, and cannot be construed to the limitation to present disclosure.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singular " one " used herein, " one
It is a ", " described " and "the" may also comprise plural form.It is to be further understood that being arranged used in the specification of present disclosure
Diction " comprising " refer to that there are the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or when " coupled " to another element, it can be directly connected or coupled to other elements, or there may also be
Intermediary element.In addition, " connection " used herein or " coupling " may include being wirelessly connected or wirelessly coupling.It is used herein to arrange
Diction "and/or" includes one or more associated wholes for listing item or any cell and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technology art
Language and scientific term), there is meaning identical with the general understanding of those of ordinary skill in present disclosure fields.Should also
Understand, those terms such as defined in the general dictionary, it should be understood that have in the context of the prior art
The consistent meaning of meaning, and unless idealization or meaning too formal otherwise will not be used by specific definitions as here
To explain.
Those skilled in the art of the present technique are appreciated that " terminal " used herein above, " user equipment " both include wireless communication
The equipment of number receiver, only has the equipment of the wireless signal receiver of non-emissive ability, and including receiving and emitting hardware
Equipment, have on bidirectional communication link, can carry out two-way communication reception and emit hardware equipment.This equipment
It may include: honeycomb or other communication equipments, shown with single line display or multi-line display or without multi-line
The honeycomb of device or other communication equipments；PCS (PerSonalCommunicationS Service, PCS Personal Communications System), can
With combine voice, data processing, fax and/or communication ability；PDA (PerSonal Digital ASSiStant, it is personal
Digital assistants), it may include radio frequency receiver, pager, the Internet/intranet access, web browser, notepad, day
It goes through and/or GPS (Global PoSitioningSyStem, global positioning system) receiver；Conventional laptop and/or hand held
Computer or other equipment, have and/or the conventional laptop including radio frequency receiver and/or palmtop computer or other
Equipment." terminal " used herein above, " terminal device " can be it is portable, can transport, be mounted on the vehicles (aviation, sea
Fortune and/or land) in, or be suitable for and/or be configured in local runtime, and/or with distribution form, operate in the earth
And/or any other position operation in space." terminal " used herein above, " terminal device " can also be communication terminal, on
Network termination, music/video playback terminal, such as can be PDA, MID (Mobile Internet Device, mobile Internet
Equipment) and/or mobile phone with music/video playing function, it is also possible to the equipment such as smart television, set-top box.
Referring to Fig. 1, physical channel transmission method disclosed in present disclosure the following steps are included:
Step 101, transmission sub-carrier resources are determined according to the configuration of base station；
Step 102, physical channel is sent or received in the transmission sub-carrier resources.
One, the configuration method of subcarrier distribution and transmission subcarrier.
It is described so that PUSCH channel carries out part PRB transmission as an example below, the method can be used for other uplinks under
Row physical channel.
When terminal is configured as supporting the covering pattern of sub-wave length transmission, the downlink control of corresponding covering pattern is received
Information obtains the configuration information of uplink sub-carrier distribution with transmission subcarrier.Terminal obtains narrowband index (narrowband first
Index), narrowband locating for the subcarrier of PUSCH transmission is distributed in the narrowband index instruction, and acquisition modes can be under
Row control information instruction or high-level signaling instruction.Terminal obtain narrowband index after, further obtain subcarrier distribution information with
Sub-carrier configuration information used in actual transmissions PUSCH.The subcarrier (hereinafter referred to as distribution subcarrier) of distribution is terminal root
According to the sub-carrier resources of the subcarrier distribution acquisition of information in Downlink Control Information and/or high-level signaling configuration；Actual transmissions
Subcarrier used in PUSCH (hereinafter referred to as transmission subcarrier) is that terminal sends sub-carrier resources used in PUSCH, transmission
Subcarrier can with distribution subcarrier it is identical, or by distribution subcarrier subset.
Transmission sub-carrier configuration information includes: to distribute the configuration information of subcarrier, transmission subcarrier in distributed subcarrier
In position configuration information.The configuration information for distributing subcarrier includes at least following one, distributes the money of physics locating for subcarrier
Index of the index of source block with distribution subcarrier in Physical Resource Block, wherein Physical Resource Block index is with distribution subcarrier in object
Index in reason resource block can be indicated by Downlink Control Information or high-level signaling is configured, to indicate respectively or combine volume
The mode of code is indicated.The method that terminal obtains transmission sub-carrier configuration can be, and terminal obtains the configuration of distribution subcarrier,
And the configuration of transmission subcarrier is determined according to system convention, the system convention includes at least one of the following contents:
(1) when distributing subcarrier number is specific value, transmission subcarrier may be different from distribution subcarrier,
Otherwise, transmission subcarrier is identical as distribution subcarrier.For example, the subcarrier number that base station may distribute to terminal is 12 (single
PRB), 6,3, when the number for distributing subcarrier is 3, terminal need to determine that transmission subcarrier is to distribute 3 according to instruction
Continuous 2 or as distributed 3 subcarriers in a subcarrier transmit son load when distributing subcarrier number is 12 and 6
Wave is to distribute subcarrier；
(2) terminal determines transmission subcarrier number according to certain system convention, and transmission subcarrier number can be with distribution
Subcarrier number is not identical.Preferably, the method for the determining transmission subcarrier number can be terminal according to subcarrier number
Instruction determine subcarrier number, for example, when distribute subcarrier number be 3 when, terminal read instruction information, determine transmission son
Carrier wave is to distribute continuous 2 or 3 subcarriers to be distributed in 3 subcarriers, wherein instruction information can be under
With the number of 1 bit indication transmission subcarrier for 2 or 3 in row control information.Preferably, the determining transmission subcarrier
Several methods can be terminal and determine that transmission subcarrier number, an example are according to the position of distribution subcarrier, when distribution
When the number of carrier wave is 3, terminal determines transmission subcarrier number according to the position of distributed subcarrier, such as when distribution subcarrier
The index of middle starting subcarrier can be divided exactly by 3, and transmitting subcarrier number is 3, identical as distribution subcarrier number；Otherwise, then
Transmitting sub-carrier number is 2.Preferably, the method for the determining transmission subcarrier number can be terminal according to modulation coding scheme
Instruction determine transmission subcarrier number, an example is, when the number for distributing subcarrier is 3, terminal is controlled according to downlink
The instruction of modulation system determines transmission subcarrier number in information.When modulation system is BPSK, transmission sub-carrier number is 2,
When modulation system is QPSK, transmission sub-carrier number is 3.A kind of implementation of modulation coding scheme instruction information can be
The instruction information of 1 bit in modulation coding scheme instructions field indicates that the modulation system of PUSCH transmission is BPSK or QPSK.
(3) terminal obtains the sub-carrier positions of PUSCH transmission actual use, i.e. transmission sub-carrier indices.When transmission carries
When wave number is identical as distribution subcarrier number, transmission sub-carrier indices are identical as distributed sub-carrier indices；When transmission carries
When wave number and not identical distribution subcarrier number, one or more of distributed subcarrier is used as transmission subcarrier.
Preferably, the method that terminal obtains transmission subcarrier, which can be, determines that distributing son carries according to system or customer parameter
The sub-carrier indices of PUSCH transmission are used in wave, the system parameter to can be cell exclusive identification code (cell ID, cell
Identity), the customer parameter can be radio network temporary identifier (Radio network tempory identify,
), such as Cell Radio Network Temporary Identifier/Identity, Cell-RNTI (C-RNTI), random access radio network temporary identifier (RA-RNTI) etc. RNTI.Eventually
End determines that an example of the specific method of transmission subcarrier is to distribute subcarrier when terminal obtains according to cell exclusive identification code
Greater than 3 or terminal obtains that distribution subcarrier number is 3 and transmission subcarrier number is when being also 3, and transmission subcarrier and distribution carry
Wave index is identical；When terminal acquisition distribution subcarrier number is 3 and acquisition transmission subcarrier number is 2, as shown in Fig. 2, root
The subcarrier that PUSCH transmission is used in distributed subcarrier is determined according to the value of the unique mark code mould 2 of cell: when cell is uniquely marked
When to know code mould 2 be 0, the transmission subcarrier of PUSCH is the first two (or latter two) in institute's 3 subcarriers of distribution continuously sub- load
Wave；Otherwise, the transmission subcarrier of PUSCH by latter two (or the first two) continuous subcarrier in 3 subcarriers of distribution.It should
Resource location when method can make the user of different community carry out 2 subcarrier PUSCH transmission is not exclusively overlapped, and is advantageously reduced
Inter-cell interference.In the example, when terminal determines in 3 distribution subcarriers according to cell exclusive identification code for PUSCH transmission
2 subcarriers position when, transmission subcarrier distribution subcarrier in relative position according to distribution subcarrier position can
With identical or different.The different example in relative position is provided in Fig. 3, when the subcarrier distributed is { #0, #1, #2 },
Cell exclusive identification code mould more than 20 indicates that latter two in distributed subcarrier is used for PUSCH transmission, when distributed subcarrier is { #
9, #10, #11 } when, cell exclusive identification code mould more than 20 indicates that the first two is used for PUSCH transmission in distributed subcarrier.
Preferably, the method that terminal obtains transmission subcarrier can be to be determined according to the position of distribution subcarrier.It is specific real
Example is that distribution subcarrier is greater than 3 or terminal acquisition distributing carrier wave number is 3 and transmission subcarrier number is also 3 when terminal obtains
When, transmission subcarrier is identical as distribution sub-carrier indices；It is 3 and obtains transmission subcarrier when terminal obtains distribution subcarrier number
When number is 2, the index of transmission subcarrier is determined according to the index (or resource distribution instruction index) of distributed subcarrier.Fig. 4
Two examples for determining transmission sub-carrier indices according to distribution sub-carrier indices are provided respectively with Fig. 5, wherein different subcarriers
There may be overlappings for distribution condition.Such as Fig. 3, the sub-carrier indices of distribution can be { #3, #4, #5 }, it is also possible to { #5, #6, #
7 }, there is the subcarrier of overlapping in two sub-carrier distribution conditions, and when transmitting subcarrier number is 2, two sub-carriers distribute feelings
The index that subcarrier is transmitted under condition is respectively { #3, #4 } and { #5, #6 }, the transmission subcarrier of corresponding different sub-carrier distribution condition
It is non-overlapping.Similarly, Fig. 4 provides the example that transmission sub-carrier indices are determined under another different sub-carrier distribution condition, with Fig. 3
The case where compared to a kind of more 3 subcarriers distribution, to ensure that the transmission subcarrier of different sub-carrier distribution condition can cover physics
All subcarriers in resource block, improve the efficiency of the utilization of resources.
Two, under part PRB resource allocation conditions frequency-hopping transmissions frequency domain resource configuration method
The frequency domain resource of the frequency-hopping transmissions includes physical channel narrowband used in each sub-frame transmission index, object
Manage resource block index and sub-carrier indices.Only by taking PUSCH transmission as an example, frequency-hopping transmissions resource is matched for following methods description
The method of setting can be used for other uplink and downlink physical channels.
When PUSCH frequency-hopping transmissions are opened, PUSCH is transmitted on subframe i, continuouslyA sub-frame of uplink uses continuous phase
With the sub-carrier resources and the identical starting subcarrier of use of number, oftenA sub-frame of uplink transmission sub-carrier resources can position
In on the different PRB of identical narrowband, or on the identical PRB of different narrow band, or on the different PRB of different narrow band, or
(different sub-carrier is used) on the identical PRB of identical narrowband.The meaning of the identical or different PRB is PRB in narrowband
Relative indexing is identical or different.Terminal obtains PUSCH frequency domain resource used in each sub-frame transmission, in frequency-hopping transmissions
Frequency domain resource (frequency domain resource of frequency-hopping transmissions is to transmit subcarrier in physical channel frequency-hopping transmissions used in every subframe) can be with
The frequency domain resource distributed is different.Also that is, terminal implements frequency hopping transmission, transmission subcarrier money in the frequency domain resource of frequency-hopping transmissions
Source is the subset of the frequency domain resource of the frequency-hopping transmissions.Illustrate frequency-hopping transmissions narrowband index, PRB index and subcarrier individually below
The configuration method of index.
1, frequency-hopping transmissions narrowband index configurations
One or more narrowbands can be used in the PUSCH frequency-hopping transmissions of single terminal, if a narrowband, the narrowband is used only
For the narrowband for distributing to terminal PUSCH transmission by Downlink Control Information or high-level signaling；If removing and dividing using multiple narrowbands
Outside with narrowband, other narrowbands for obtaining frequency-hopping transmissions are also needed.Preferably, terminal is narrow according to following system parameter acquisition frequency-hopping transmissions
Tape index, the parameter include at least following one, the narrowband index distributed, subframe numbers, frequency hopping direction instruction, stepped-frequency interval
(hopping interval), frequency hopping shift (hopping offset).Wherein, stepped-frequency interval and frequency hopping shift are the prior arts
In existing high-rise configuration parameter；Frequency hopping direction instruction is used to indicate frequency-hopping transmissions and uses other narrowbands and distributed narrowband
Relative positional relationship can specifically be carried in Downlink Control Information.By taking frequency-hopping transmissions are using 2 narrowbands as an example, frequency hopping direction
Instruction can be in PUSCH uplink authorization information using 1 bit indication in addition to distribute narrowband, frequency-hopping transmissions it is used another
Narrowband index is more than or less than distributed narrowband and indexes.The calculation method of the used narrowband of frequency-hopping transmissions is at this time, when frequency hopping side
Downward to being designated as, i.e. when another narrowband index of frequency-hopping transmissions is greater than distributed narrowband index, PUSCH is uploaded in subframe i
The index of narrowband used in defeated is calculated according to following formula:
Otherwise when frequency hopping direction instruction be it is upward, i.e., frequency-hopping transmissions another narrowband index be less than distributed narrowband index
When, PUSCH transmits used narrowband index on subframe i and calculates according to following formula:
Wherein,It is the sum for the narrowband for including in system bandwidth；i0It is the exhausted of the initial uplink subframe of carrying PUSCH
To subframe numbers,It is the index of distributed narrowband；For stepped-frequency interval,It is high-rise configuration for frequency hopping shift
Parameter.The stepped-frequency interval indicates continuousPhysical channel transmission uses identical frequency domain resource in a subframe；The frequency hopping
Offset indicates the difference that distribution narrowband index is indexed with other for the narrowband of frequency-hopping transmissions.With frequency-hopping transmissions between two narrowbands
For, Fig. 6 provides the example that frequency hopping between narrowband is carried out according to the above method, and in this example, terminal 1 is respectively represented with terminal 2
Frequency hopping direction instruction be upwards with two kinds of downward situations.
Preferably, terminal obtains frequency-hopping transmissions narrowband index according to following system parameter, and the parameter includes at least following
One of, narrowband index, subframe numbers, the stepped-frequency interval (hopping interval), the grouping of frequency hopping narrowband distributed.Wherein, it jumps
For determining narrowband resource used in user's frequency-hopping transmissions, narrowband grouping can be fixed for system or according to being the grouping of frequency narrowband
System parameter frequency hopping shift (hopping offset) value is tabled look-up acquisition.Specifically, when terminal obtains the frequency domain resource of PUSCH transmission
For part PRB and when frequency-hopping transmissions function is opened, terminal is determined according to the grouping of frequency hopping narrowband, distributed narrowband, stepped-frequency interval
The index of narrowband used in each subframe of PUSCH frequency-hopping transmissions.By taking the grouping of frequency hopping narrowband is comprising two narrowbands as an example, PUSCH exists
Narrowband index used in transmitting on subframe i can be calculated according to following formula:
Wherein, i0It is the absolute subframe numbers for carrying the initial uplink subframe of PUSCH,It is the index of distributed narrowband；For stepped-frequency interval,It is high-rise configuration parameter for frequency hopping shift；Φ by comprising distribution narrowband frequency hopping it is narrow
Band grouping, andFig. 6 provides the example that frequency hopping between narrowband is carried out according to the above method, in this example, terminal
1 respectively represents the case where distributed narrowband index is two different narrowbands in narrowband grouping from terminal 2.The frequency hopping narrowband point
It is fixed that group can be system, or is tabled look-up acquisition according to system parameter frequency hopping shift (hopping offset) value.Still with frequency hopping
For narrowband grouping is comprising two narrowbands, provides and table look-up and jumped according to system parameter frequency hopping shift (hopping offset) value
One example of frequency narrowband grouping.If LTE system bandwidth is 10MHz, then the narrowband number in system is 8, if frequency hopping shift is
2, then all narrowbands in system can be divided into 4 not overlapped group that absolute offset value is 2, wherein every group of narrowband index for including
It can be Φ={ i, i+2 | i=0,1,4,5 }；If frequency hopping shift is 3, internal system point narrowband can be divided into absolute offset value and be
33 not overlapped group, wherein every group of narrowband index for including can be Φ={ i, i+3 | i=0,1,2 }, index is 6 at this time
Narrowband with 7 is not belonging to above-mentioned grouping, if it is 6 or 7 that terminal initial, which transmits distributed narrowband, PUSCH does not support frequency hopping to pass
It is defeated, or index is grouped for 6 and 7 narrowband as one group of frequency hopping narrowband, carry out frequency-hopping transmissions.
2, frequency-hopping transmissions PRB index and sub-carrier indices configure
Single terminal carries out that identical or different narrowband can be used when frequency-hopping transmissions, while the used frequency in narrowband
Domain resource location can also be identical or different, and the frequency domain resource in the narrowband includes the son in PRB index and PRB in narrowband
Carrier index.Specifically, when carrying out frequency-hopping transmissions on multiple narrowbands as PUSCH, identical rope can be used on different narrowbands
The subcarrier of the PRB and same index that draw, as shown in Figure 6；Or when PUSCH carries out frequency-hopping transmissions on one or more narrowbands
When, using the PRB of different index and the subcarrier of same index, wherein the determination of PRB index can be fixed by system or by height
Layer signaling instruction, such as can fix or the deviant between the used PRB index of indicative of frequency hopping and distributed PRB index；Or make
With the PRB of identical or different index and the subcarrier of different index, wherein the determination method of PRB index is for example aforementioned.
Terminal can determine sub-carrier indices used in the every subframe of PUSCH transmission, the parameter according to following system parameter
Including at least following one, subframe index, stepped-frequency interval, the initial transmission configured sub-carrier indices.Preferably, work as frequency hopping
When transmitting the subcarrier of different the used different index of subframe, the method for determination of frequency-hopping transmissions sub-carrier indices can be consolidated by system
It is fixed or indicated by high-level signaling, such as can fix or the son of the used sub-carrier indices of indicative of frequency hopping and the initial transmission configured
Deviant between carrier index.Preferably, terminal can determine whether to deposit according to the sub-carrier indices of the initial transmission configured
The frequency hopping between subcarrier determines frequency hopping sub-carrier indices, institute according to configured sub-carrier indices when there are frequency hopping between subcarrier
Frequency hopping meaning is subcarrier of the frequency-hopping transmissions in different subframes using different index between stating subcarrier.Below with the initial of Fig. 4
For transmitting sub-carrier indices configuration, an example of this method is provided.When initial transmission sub-carrier indices be { 1,2 }, 3,
4 }, when { 7,8 } or { 9,10 }, without subcarrier frequency hopping；When the sub-carrier indices of initial transmission are { 5,6 }, sub- load is carried out
Wave frequency hopping, and the index of frequency hopping subcarrier is determined according to subframe index and stepped-frequency interval.Assuming that stepped-frequency interval is 2 subframes, frequency hopping
Transmission uses different narrowbands, and Fig. 7 provides a frequency hopping sub-carrier indices and determines method example, first frequency hopping of initial transmission
In interval, PUSCH transmission is the subcarrier of { 5,6 } using index；In second stepped-frequency interval, the downward frequency hopping of PUSCH uses rope
It is cited as the subcarrier of { 10,11 }；In third stepped-frequency interval, the upward frequency hopping of PUSCH is the subcarrier of { 0,1 } using index；It connects
In next stepped-frequency interval, PUSCH continues to use distributed transmission subcarrier { 5,6 }, continues the circulation.The design can make
(subcarrier of index 3~8 can be used for distributing to the transmission of 3 subcarriers on narrowband j) in Fig. 7, and frequency hopping direction replaces for frequency hopping narrowband
Upwards with can reduce the interference to adjacent cell same position subcarrier downwards.
Three, part PRB resource allocation scene modulated coding mode, transport block size, the acquisition modes of resource unit number
In the frequency domain resource that terminal obtains transmission with postponing, need further to obtain resource unit number, modulation coding scheme
It is transmitted with parameters such as transport block sizes.Following methods are described by taking PUSCH transmission as an example, and the method can be used for other
Uplink and downlink physical channel.
Preferably, terminal can obtain modulation coding scheme, transmission according to modulation coding scheme instruction/transport block size instruction
Block size and resource unit number, and indicated according to modulation coding scheme instruction/transport block size, it determines and passes with distribution sub-carrier number
Defeated sub-carrier number.Specifically, terminal by modulation coding scheme indicate obtain modulation system, and modulation system and transmission subcarrier
There are corresponding relationships for number, such as when modulation system is BPSK, sub-carrier number used in PUSCH transmission is 2；Work as modulation system
When for QPSK, sub-carrier number used in PUSCH transmission is 3 or 6.Then, terminal is determined further according to the sub-carrier number of distribution and is passed
The number of defeated subcarrier, method are as mentioned before.Table 1 provides an example of this method, and table shown in table 1 is transport block size
Instruction, modulation coding scheme, transport block size, a kind of form of transmission sub-carrier number, corresponding relationship between resource unit number,
This corresponding relationship can be preset, wherein modulation coding scheme instruction is designated as corresponding with transport block size
Relationship, the modulating-coding indication bit that terminal is configured according to base station can obtain modulation coding scheme, transport block size and resource list
First number can determine transmission sub-carrier number in conjunction with distribution sub-carrier number.
Table 1
Preferably, terminal can obtain modulation system according to transmission subcarrier number or be obtained according to transmission subcarrier number and be adjusted
Mode processed and resource unit block length, and modulation coding scheme instruction (or transport block size is obtained according to transmission subcarrier number
Indicate) corresponding relationship with transport block size and resource unit number, when transmitting subcarrier number difference, the corresponding relationship
It can be different.Wherein, transmission sub-carrier number can be indicated by the transmission subcarrier number carried in Downlink Control Information
It obtains, for example, it is 2 that transmission sub-carrier number under 1 bit indication part PRB resource allocation conditions is carried in Downlink Control Information, or
It transmits sub-carrier number and is greater than 2.Specifically, an example of this method is as shown in table 2 and table 3, when terminal obtains transmission subcarrier
Number is 2, then transmission is obtained in table 2 by lookup table mode according to modulation coding scheme instruction/transport block size instruction information
Block size and resource unit number；It is greater than 2 when terminal obtains transmission subcarrier number, then according to modulation coding scheme instruction/transmission
Block size instruction information obtains transport block size and resource unit number by lookup table mode in table 3.
Preferably, terminal can obtain transmission subcarrier number according to modulation system, and obtain modulation according to modulation system and compile
Code mode indicates the corresponding relationship of (or transport block size instruction) and transport block size and resource unit number, when modulation system not
Meanwhile the corresponding relationship can be different.Wherein, modulation system can be by the instruction ratio that carries in Downlink Control Information
Spy obtains, for example, it is BPSK that 1 bit indication part PRB resource allocation conditions modulated mode is carried in Downlink Control Information, or
For QPSK.When modulation system is BPSK, transmission subcarrier number is 2；When modulation system is QPSK, subcarrier number is transmitted
Greater than 2, specific value can be obtained according to distribution subcarrier number, and specific method is as mentioned before.Specifically, one of this method
Example is, is BPSK when terminal obtains modulation system, then is passed through according to modulation coding scheme instruction/transport block size instruction information
Lookup table mode obtains transport block size and resource unit number in table 2；It is QPSK when terminal obtains modulation system, then according to modulation
Coding mode instruction/transport block size instruction information obtains transport block size and resource unit number by lookup table mode in table 3.
Wherein, the transport block size indication bit in table 2 can be increased and decreased, such as transport block size instruction indexes 8 to rope in support matrix 3
Drawing one or more in 15, corresponding resource unit numbers can be 4.Or, another example of this method is that terminal is according to system
Coding mode instruction/transport block size instruction information obtains transport block size and resource unit number by lookup table mode in table 3,
And modifying factor β is multiplied by the transport block size of acquisition according to transmission sub-carrier number and is modified, for example, when transmission sub-carrier number
When greater than 2, modifying factor value is β=1, and when transmitting sub-carrier number is 2, modifying factor value is β=1/3.
Table 2
Table 3
Four, the configuration method of physical channel resources offset
To realize more flexible resource allocation, or part Chong Die with eMTC physical channel the distributed frequency domain resource of transmission is reduced
LTE resource block group (RBG, resource block group) number of overlapping illustrates several flexible physical channel moneys below
The configuration method of source offset.Following methods can be used in any combination.
Method one: the offset of configuration narrowband starting PRB, it is possible to reduce the number of the LTE RBG Chong Die with the narrowband eMTC PRB
Amount, to promote the efficiency of LTE system resource allocation.Basic principle is as shown in Figure 8, it is assumed that scene is that LTE system bandwidth is
3MHz includes 15 PRB altogether, and it is the minimum particle size under several common resource distribution modes of LTE that every two PRB points, which are a RBG,.
One narrowband includes 6 continuous P RB, such as Fig. 8, LTE bandwidth when being 3MHz the index of the starting PRB of one of narrowband be 1, this
So that an included PRB in narrowband occupies 4 PRB, the starting PRB biased forwards 1 of the narrowband are configured at this time, i.e. starting PRB
Index is 0, and a narrowband may make to occupy 3 RBG, releases resource allocation of the RBG for LTE.This method step is such as
Under.
Step 1: eMTC terminal obtains the configuration information of narrowband offset, and the configuration information of the narrowband offset can be used for
Capable and/or downlink, the signaling for uplink and downlink narrowband offset configuration may be the same or different；
Step 2: when carrying out specific transmission, the terminal under special scenes obtains physical channel according to the narrowband after offset
Frequency domain resource, uplink or downlink reception are carried out, wherein the narrowband meaning after offset is terminal according to narrowband offset configuration
It include the index of all PRB in the narrowband that information obtains after deviating to narrowband starting PRB.Preferably, the specific transmission
Including at least following one, PUSCH transmission, PDSCH reception, the proprietary search space of MPDCCH user, MPDCCH common search are empty
Between the search space MPDCCH of paging (for example, for).Preferably, the special scenes include at least following one, at terminal
In part PRB transmission covering pattern, terminal is in covering pattern A, terminal is in covering pattern B, i.e., multiple terminals in cell
Any of can be in one of above-mentioned mode.Preferably, the narrowband after the offset, including starting PRB index
The configuring condition not deviated.
Illustrate the configuration method of narrowband offset below.Preferably, the method that terminal obtains narrowband offset configuration can be, eventually
End determines the offset manner of each narrowband in system bandwidth according to higher level parameters, and the terminal is for determining narrowband offset manner
Higher level parameters configuration content include at least following one, system bandwidth, narrowband slope switch, narrowband originate PRB index offset
Amount and offset direction.A kind of specific embodiment is, terminal determines the inclined of each narrowband in system bandwidth according to system bandwidth
Shifting mode, the offset manner include the narrowband whether deviate, the narrowband starting PRB offset direction and index offset amount.It should
One example of method is that terminal obtains higher level parameters system bandwidth and narrowband slope switch, when narrowband originates PRB slope switch
It closes, then all narrowband positions are constant in system, i.e. the narrowband PRB index that includes is constant；Otherwise, it is determined according to system bandwidth every
The offset manner of one narrowband is as follows,
When system bandwidth is 20MHz, the starting PRB index offset of all narrowbands is 0 in bandwidth, i.e., does not deviate；
When system bandwidth is 15MHz, index the narrowband for { 0,1,2,3,4,5 } originate PRB index offset amount be+1 (or-
1), i.e. the starting PRB index of narrowband deviates 1 PRB backward (or forward), and the starting PRB offset of remaining narrowband is 0；
When system bandwidth is 10MHz, the starting PRB index offset amount of all narrowbands is -1 in bandwidth, i.e. the starting of narrowband
1 PRB of PRB index biased forwards；
When system bandwidth is 5MHz, indexing as the narrowband starting PRB index offset amount of { 2,3 } is -1, the i.e. starting of narrowband
The starting PRB offset of 1 PRB of PRB index biased forwards, remaining narrowband are 0；
When system bandwidth is 3MHz, indexing as 0 narrowband starting PRB index offset amount is -1, i.e. the starting PRB rope of narrowband
Draw 1 PRB of biased forwards, the starting PRB offset of remaining narrowband is 0.
Another specific embodiment is, terminal by higher level parameters " narrowband slope switch ", " narrowband originates the inclined of PRB
Move direction and/or index offset amount ", the starting PRB offset manner of specialized narrowband is determined, for example, terminal obtains in system bandwidth
The offset configuration parameter of each narrowband, the parameter can be the slope switch for each narrowband separate configurations, and/or be every
The starting offset direction PRB of a narrowband separate configurations, and/or the starting PRB index offset amount of each narrowband separate configurations.Terminal
The PRB index that the narrowband after offset is included is obtained according to the offset configuration of each narrowband.Specific narrowband offset configuration ginseng
Several signaling indicating modes can be with the offset configuration of all narrowbands in bit mapping mode instruction system bandwidth.
Preferably, the method that terminal obtains narrowband offset can be, and terminal is deviated according to the narrowband in Downlink Control Information
It indicates to determine narrowband offset manner, the narrowband offset instruction content in the Downlink Control Information includes at least following one, narrow
Band slope switch, narrowband starting PRB index offset amount, narrowband originate the offset direction PRB.Specifically, when terminal obtains physics letter
After road transmits distributed narrowband, the offset side of distributed narrowband is determined according to the narrowband offset instruction in Downlink Control Information
Formula, the physical channel can be PUSCH or PDSCH.The specific embodiment of narrowband offset instruction in Downlink Control Information
It can be, the instruction of the narrowband slope switch of 1 bit, such as when slope switch is designated as out, then terminal is by of distribute narrowband
Beginning PRB index positively or negatively deviates N, and wherein the value of PRB index offset direction and N can be fixed by system or in downlink controls
It explicit notification or is configured by high-level signaling or is indexed by terminal according to system bandwidth and/or narrowband and determine institute in information processed
Whether distribution narrowband initial position needs to deviate and offset direction and deviant.The distributed narrowband meaning is downlink control
It is one or more narrowbands of several PRB institutes subordinate of physical channel distribution in information processed.When slope switch is designated as closing, then eventually
End does not deviate distributed narrowband.Preferably, the specific embodiment of the narrowband offset instruction in Downlink Control Information may be used also
To be, starting PRB index offset direction and the offset of distributed narrowband are indicated.For example, 1 bit indication information indicates two kinds of shapes
State: the starting PRB index of distributed narrowband subtracts one, or the starting PRB index plus one of distributed narrowband, when distributed narrowband is N
It is that each narrowband independently indicates that offset information or several narrowbands make that Downlink Control Information, which may include N number of indication bit, when a
With identical instruction information.Or, 2 bit indication information indicate three kinds of states: the starting PRB index of distributed narrowband is constant (no
Offset), the starting PRB index of distribute narrowband subtracts one, the starting PRB index of distributed narrowband adds one, when distributed narrowband is N
When a Downlink Control Information may include 2 × N number of indication bit is that each narrowband independently indicates offset information or several narrowbands
Use identical instruction information.Above-mentioned difference indicating mode example can be combined with each other use.
Method two: the frequency domain starting location offset of configuration physical channel resources distribution, it is possible to reduce with eMTC physical channel
The quantity for distributing the LTE RBG of PRB overlapping, to promote the efficiency of LTE system resource allocation.The method steps are as follows:
Step 1: terminal obtains the resource allocation information that the Downlink Control Information of scheduling physical channel codeword transmission carries,
The frequency domain starting location offset information of distributed physical resource is obtained simultaneously, and the physical channel includes upstream or downstream physics letter
The frequency domain starting location offset information in road, such as PUSCH, PDSCH, the distributed physical resource can be by dispatching same physics
The Downlink Control Information of channel codeword transmission indicates, or is indicated by high-level signaling；
Step 2: terminal is indicated according to the frequency domain starting location offset of distributed physical resource to the physical resource distributed
Frequency offset is carried out, carries out uplink or downlink reception according to the physical resource after offset.The distributed Physical Resource Block
Frequency domain starting location offset meaning be distribute to physical channel transmission physical resource in originate PRB index/subcarrier rope
Draw offset.Preferably, the frequency domain starting location offset of distributed Physical Resource Block, including starting PRB index/sub-carrier indices are not
The configuring condition of offset.
Illustrate the configuration method of the frequency domain starting location offset of distributed physical resource below.Preferably, terminal obtains institute
The method of the frequency domain starting location offset configuration of distribution physical resource can be, and terminal reads scheduling physical channel codeword transmission
Downlink Control Information and/or high-level signaling obtain the frequency domain starting location offset mode information of distributed physical resource, the institute
The frequency domain starting location offset mode content for distributing physical resource includes at least following one, if is deviated, institute's allotment
Manage starting PRB index/sub-carrier indices offset direction of resource, starting PRB index/subcarrier rope of distributed physical resource
The offset drawn.Preferably, when the frequency domain starting location offset mode information of distributed physical resource by high-level signaling indicate,
The signaling can be the proprietary signaling of user, as different user separate configurations offset manner, or, cell common signaling, as full
The identical offset manner of one group of user configuration of sufficient certain condition, the certain condition can be identical covering pattern.It is preferred that
Ground, the instruction information that terminal obtains for determining the frequency domain starting location offset mode of distributed physical resource include at least following
One of, the frequency domain starting location offset switch of distributed physical resource, system bandwidth, distributed narrowband index, narrowband offset refer to
Show information, distributed Physical Resource Block index, terminal covering pattern, distributed physical resource starting PRB index/sub-carrier indices
Offset direction and offset.For example, when the frequency domain starting location offset of distributed physical resource switch is designated as " opening ", eventually
End determines that the configuration parameter is extremely to the frequency domain starting location offset mode of the physical resource distributed according to other configurations parameter
It less include following one, system bandwidth, distributed narrowband index, narrowband offset instruction information, distributed resource block index, terminal
Covering pattern, distributed physical resource starting PRB index/sub-carrier index offset direction and offset；When distributed physics provides
When the frequency domain starting location offset switch in source is designated as " closing ", terminal is not to the frequency domain initial position of the physical resource distributed
It deviates.One of example is, when system bandwidth is 15MHz, if terminal obtains PUSCH distribution narrowband at covering pattern B
Index is 0, and the PRB index of distribution is { 2,3 }.If the starting PRB index of distributed narrowband does not deviate, PUSCH transmission is divided
2 RBG are occupied with PRB, if the frequency domain starting location offset switch that terminal obtains distribution physical resource at this time is open state,
By 1 PRB of PRB index forward migration of distribution, i.e. PRB index used in PUSCH transmission is { 3,4 }, so that dividing
The physical resource matched is located in a RBG；If the starting PRB of distributed narrowband has carried out index in offset and distributed narrowband
The PRB of { 2,3 } is located in RBG, though terminal obtain distribution resource block starting location offset switch for open without into
Row distribution resource block starting location offset.In this example embodiment, terminal is according to slope switch, the system band in Downlink Control Information
Width, covering pattern, distributed narrowband offset manner, distributed resource block index determine the frequency domain start bit of distributed physical resource
The offset manner set.Preferably, the instruction information of the frequency domain starting location offset for the distributed physical resource that terminal obtains may be used also
To be, starting PRB index/sub-carrier index offset amount of distributed physical resource and offset direction, for example, terminal will be distributed
The starting PRB index of physical resource positively or negatively deviates N, and the offset with starting PRB of distributed physical resource carries out whole
Offset.Wherein the value of PRB index offset direction and N can be fixed by system or in Downlink Control Information explicit notification or by
High-level signaling is configured.
Method three: LTE terminal obtains eMTC physical resource service condition, transmits used physical resource pair according to eMTC
LTE RBG is changed, and carries out upstream or downstream resource allocation using the RBG after change.The method steps are as follows:
Step 1: LTE terminal obtains eMTC system physical resource using information, and is used according to eMTC system physical resource
Situation changes LTE RBG.It is described that one of the following contents is included at least to LTE RBG change meaning, it changes in LTE RBG
Include PRB index, the change LTE RBG starting PRB index for including in PRB quantity, change LTE RBG；
Step 2: LTE terminal carries out the resource allocation of upstream or downstream physical channel according to the RBG after change.Preferably,
Resource mapping method of the physical channel on the RBG after change is rate-matched.
Preferably, the mode that LTE terminal obtains eMTC system physical resource using information includes at least following one, LTE
Terminal reads eMTC system information, LTE terminal reads high-level signaling.The eMTC system information that the LTE terminal is read at least is wrapped
Following one is included, one type-BR (SIB1-BR, SystemInformationBlockType1- of System information block in main message blocks
BR scheduling information, window length, repetitions patterns, narrowband, the frequency parameter etc. of other systems message blocks in scheduling information), SIB1-BR
Physical resource configuration parameter, the physical resource configuration parameter of MPDCCH public search space, the physical resource configuration ginseng of PRACH
Number, frequency hopping configuration parameter etc..The LTE terminal is to refer to for obtaining the high-level signaling of eMTC system physical resource using information
Show the time domain and/or frequency-domain physical resource that eMTC system uses.More preferably, the frequency-domain physical resource that instruction eMTC system uses
Method can be, the narrowband index that instruction eMTC system uses；More preferably, the Time domain physical resource that instruction eMTC system uses
Method can be, and indicate the time span that the physical resource that eMTC system uses in one section of period occupies.
Preferably, LTE terminal according to eMTC system physical resource using information change LTE RBG method be, when in RBG
Part PRB is used by eMTC system, then the PRB used by eMTC is rejected from the RBG, constitutes new RBG, and Fig. 9 gives
An example out.Preferably, LTE terminal according to eMTC system physical resource using information change LTE RBG method further include,
If all PRB use (i.e. the unavailable RBG of LTE system) by eMTC system in original LTE RBG, the RBG index can be retained；
Or, deleting the RBG index and resequencing to remaining RBG index, by taking scene in Fig. 9 as an example, LTE system can use RBG after change
Quantity be 6, then 6 RBG are arranged successively according to the increased sequence of PRB index, from left to right index respectively 0,1,2,
3,4,5}。
Referring to Fig. 10, user equipment of the present disclosure for physical channel transmission includes:
Transmission sub-carrier block is determined, for determining transmission sub-carrier resources according to the configuration of base station；
Transmitting physical channel module, for sending or receiving physical channel in the transmission sub-carrier resources.
Determine that transmission sub-carrier block, the course of work of transmitting physical channel module correspond respectively to present disclosure random access
The step 101 of method, 102, details are not described herein again.
In conjunction with can be seen that compared with prior art to the detailed description of present disclosure above, present disclosure at least has following
Beneficial technical effect:
First, by the way that the resource allocation unit of transmitting physical channel is subdivided into subcarrier by PRB, it has been obviously improved uplink
The power spectral density of transmitting, effectively realization coverage enhancement.
Second, provide different schemes to transmission subcarrier number and position be respectively configured, make system have compared with
Good flexibility and expansibility, while resource location when user's transmitting physical channel of different community can be made not to be overlapped, have
Effect reduces inter-cell interference.
Third is realized flexible physical channel resources offset arrangement using the other resource allocation unit of sub-wave length, is reduced
It transmits the Chong Die LTE RBG of distributed frequency domain resource with eMTC physical channel to count, reduction is not used to eMTC user and also can not
The waste of resource for LTE user greatly improves the efficiency of the utilization of resources.
4th, the validity and reliability that a variety of frequency-hopping transmissions schemes increase data transmission, while frequency hopping direction are provided
Alternating advantageously reduces the interference to adjacent cell same position subcarrier with downward scheme upwards, improves systematic entirety
Energy.
Those skilled in the art of the present technique are appreciated that present disclosure includes being related to for executing in operation described in present disclosure
One or more equipment.These equipment can specially design and manufacture for required purpose, or also may include general
Known device in computer.These equipment have the computer program being stored in it, these computer programs are selectively
Activation or reconstruct.Such computer program can be stored in equipment (for example, computer) readable medium or be stored in
It e-command and is coupled in any kind of medium of bus respectively suitable for storage, the computer-readable medium includes but not
Be limited to any kind of disk (including floppy disk, hard disk, CD, CD-ROM and magneto-optic disk), ROM (Read-Only Memory, only
Read memory), RAM (Random AcceSS Memory, immediately memory), EPROM (EraSable Programmable
Read-Only Memory, Erarable Programmable Read only Memory), EEPROM (Electrically EraSable
Programmable Read-Only Memory, Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic card or light card
Piece.It is, readable medium includes by equipment (for example, computer) with any Jie for the form storage or transmission information that can be read
Matter.
Those skilled in the art of the present technique be appreciated that can be realized with computer program instructions these structure charts and/or
The combination of each frame and these structure charts and/or the frame in block diagram and/or flow graph in block diagram and/or flow graph.This technology neck
Field technique personnel be appreciated that these computer program instructions can be supplied to general purpose computer, special purpose computer or other
The processor of programmable data processing method is realized, to pass through the processing of computer or other programmable data processing methods
The scheme specified in frame or multiple frames of the device to execute structure chart and/or block diagram disclosed in present disclosure and/or flow graph.
Those skilled in the art of the present technique have been appreciated that in present disclosure the various operations crossed by discussion, method, in process
Steps, measures, and schemes can be replaced, changed, combined or be deleted.Further, each with what is crossed by discussion in present disclosure
Kind of operation, method, other steps, measures, and schemes in process may also be alternated, changed, rearranged, decomposed, combined or deleted.
Further, in the prior art to have and the step in various operations, method disclosed in present disclosure, process, measure, scheme
It may also be alternated, changed, rearranged, decomposed, combined or deleted.
The above is only some embodiments of present disclosure, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from present disclosure principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of present disclosure.
Claims (15)
1. a kind of physical channel transmission method, it is characterised in that: the described method comprises the following steps:
Transmission sub-carrier resources are determined according to the configuration of base station；
Physical channel is sent or received in the transmission sub-carrier resources.
2. physical channel transmission method as described in claim 1, it is characterised in that: described determined according to the configuration of base station is transmitted
Sub-carrier resources, comprising:
Determine that narrowband indexes according to the configuration of base station；
The sub-carrier resources for the distribution being located in narrowband are determined according to narrowband index；
Determine the transmission sub-carrier resources being located in the sub-carrier resources of distribution.
3. physical channel transmission method as claimed in claim 2, it is characterised in that: the determination is located at the subcarrier money of distribution
Transmission sub-carrier resources in source, comprising: determine the number and index of the transmission subcarrier in the sub-carrier resources for being located at distribution.
4. physical channel transmission method as claimed in claim 3, it is characterised in that: the determination is located at the subcarrier money of distribution
The number of transmission subcarrier in source, comprising:
According to any one of subcarrier number instruction, the position of distribution subcarrier, modulation coding scheme is transmitted, determines to be located at and divide
The number of transmission subcarrier in the sub-carrier resources matched.
5. physical channel transmission method as claimed in claim 3, it is characterised in that: the determination is located at the subcarrier money of distribution
The index of transmission subcarrier in source, comprising:
According to the index and cell exclusive identification code of distribution subcarrier, determine that transmission being located in the sub-carrier resources of distribution carries
The index of wave；Or
According to the index and radio network temporary identifier of distribution subcarrier, transmission being located in the sub-carrier resources of distribution is determined
The index of carrier wave.
6. physical channel transmission method as described in claim 1, it is characterised in that:
It is described send or receive physical channel in the transmission sub-carrier resources before, comprising: according to base station configure modulation
Coding mode instruction or transport block size instruction, it is determining corresponding with modulation coding scheme instruction or transport block size instruction
Modulation coding scheme, transport block size and resource unit number, wherein modulation coding scheme instruction or transport block size instruction and tune
The corresponding relationship of coding mode processed, transport block size and resource unit number presets for system, or according to transmission sub-carrier number
Or modulation system determines；
It is described to send or receive physical channel in the transmission sub-carrier resources, comprising: according to identified modulating-coding side
Formula, transport block size and resource unit number send or receive physical channel in the transmission sub-carrier resources.
7. physical channel transmission method as described in claim 1, it is characterised in that:
It is described in the transmission sub-carrier resources send physical channel before, comprising: according to the configuration of base station determine frequency hopping pass
Defeated frequency domain resource；
It is described to send physical channel in the transmission sub-carrier resources, comprising: to be sent out in the frequency domain resource of the frequency-hopping transmissions
Physical channel is sent, the frequency domain resource of the frequency-hopping transmissions includes the transmission sub-carrier resources.
8. physical channel transmission method as claimed in claim 7, it is characterised in that: the frequency domain in the frequency-hopping transmissions provides
Physical channel is sent on source, comprising:
Physical channel is sent with frequency-hopping mode in the frequency domain resource of frequency-hopping transmissions, the frequency-hopping mode includes: to be with N number of subframe
One stepped-frequency interval, N are positive integer, the identical transmission sub-carrier resources of use in each stepped-frequency interval, between former and later two frequency hoppings
Different transmission sub-carrier resources are used on；
Different transmission sub-carrier resources are used on former and later two described stepped-frequency intervals, comprising: on former and later two stepped-frequency intervals
Transmission sub-carrier resources are located on the different Physical Resource Block PRB of identical narrowband；Or it is located at different narrow band but there is identical narrowband
On the different PRB of interior relative indexing；Or on the different PRB of different narrow band；Or in the different sub-carrier of identical PRB；
The phase be all it is identical on frequency domain, described is not all different on frequency domain.
9. physical channel transmission method as claimed in claim 7 or 8, it is characterised in that: described to be determined according to the configuration of base station
The frequency domain resource of frequency-hopping transmissions, comprising:
Frequency-hopping transmissions narrowband index, frequency-hopping transmissions PRB index and frequency-hopping transmissions sub-carrier indices are determined according to the configuration of base station；
Frequency-hopping transmissions are determined according to frequency-hopping transmissions narrowband index, frequency-hopping transmissions PRB index and frequency-hopping transmissions sub-carrier indices
Frequency domain resource.
10. physical channel transmission method as claimed in claim 9, it is characterised in that: described determined according to the configuration of base station is jumped
Keep pouring in defeated narrowband index, comprising:
Determine that frequency-hopping transmissions narrowband indexes according to the parameter that base station configures, the parameter includes distributed narrowband index, subframe
Number, frequency hopping direction instruction, stepped-frequency interval and frequency hopping shift or the parameter include distributed narrowband index, subframe numbers, jump
Frequency interval and the grouping of frequency hopping narrowband；
Relative positional relationship of the frequency hopping direction instruction for other narrowbands and distributed narrowband used in frequency-hopping transmissions, institute
The grouping of frequency hopping narrowband is stated for determining narrowband resource used in frequency-hopping transmissions.
11. physical channel transmission method as claimed in claim 9, it is characterised in that: described determined according to the configuration of base station is jumped
Keep pouring in defeated sub-carrier indices, comprising:
Determine frequency-hopping transmissions sub-carrier indices according to the parameter that base station configures, the parameter include subframe index, stepped-frequency interval and
The index of initial transmission subcarrier.
12. physical channel transmission method as described in claim 1, it is characterised in that:
It is described that transmission sub-carrier resources are determined according to the configuration of base station, comprising: the transmission after offset is determined according to the configuration of base station
Sub-carrier resources；
It is described to send or receive physical channel in the transmission sub-carrier resources, comprising: transmission after the offset carries
Physical channel is sent or received in wave resource.
13. physical channel transmission method as claimed in claim 12, which is characterized in that after determining offset according to the configuration of base station
Transmission sub-carrier resources, including following one:
The transmission sub-carrier resources after offset are determined according to the narrowband offset instruction of base station configuration；
According to the corresponding relationship of system bandwidth and narrowband offset manner, or according to bit map, each narrowband starting PRB is obtained
The offset manner of index, the transmission sub-carrier resources after determining offset；
The physical resource distributed is carried out according to the frequency domain starting location offset instruction of the distributed physical resource of base station configuration
Frequency offset, the transmission sub-carrier resources after determining offset, the frequency domain starting location offset instruction of the distributed physical resource
It is used to indicate the offset that PRB index or starting sub-carrier indices are originated in the physical resource for distributing to physical channel transmission.
14. physical channel transmission method as described in claim 12 or 13, it is characterised in that:
Physical channel is sent or received in the transmission sub-carrier resources after the offset, comprising: one in following scene:
The covering pattern of support section PRB transmission, covering pattern A, in covering pattern B, the transmission sub-carrier resources after the offset
On send or receive physical channel.
15. a kind of user equipment, it is characterised in that: include:
Transmission sub-carrier block is determined, for determining transmission sub-carrier resources according to the configuration of base station；
Transmitting physical channel module, for sending or receiving physical channel in the transmission sub-carrier resources.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810129523.4A CN110139247B (en) | 2018-02-08 | 2018-02-08 | Method and equipment for transmitting physical channel |
| EP19752038.0A EP3735797A4 (en) | 2018-02-08 | 2019-02-08 | Method for transmitting physical channels, user equipment therefor, method and user equipment for relay transmission |
| US15/733,481 US11785624B2 (en) | 2018-02-08 | 2019-02-08 | Method for transmitting physical channels, user equipment therefor, method and user equipment for relay transmission |
| KR1020207023006A KR20200108446A (en) | 2018-02-08 | 2019-02-08 | Physical channel transmission method and user equipment, relay transmission method and user equipment |
| PCT/KR2019/001573 WO2019156505A1 (en) | 2018-02-08 | 2019-02-08 | Method for transmitting physical channels, user equipment therefor, method and user equipment for relay transmission |
| US18/482,594 US20240049270A1 (en) | 2018-02-08 | 2023-10-06 | Method for transmitting physical channels, user equipment therefor, method and user equipment for relay transmission |
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|---|---|---|---|
| CN201810129523.4A CN110139247B (en) | 2018-02-08 | 2018-02-08 | Method and equipment for transmitting physical channel |
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| CN110139247B CN110139247B (en) | 2024-04-12 |
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