CN106686735A - Physical downlink shared channel resource mapping method - Google Patents
Physical downlink shared channel resource mapping method Download PDFInfo
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- CN106686735A CN106686735A CN201611222464.2A CN201611222464A CN106686735A CN 106686735 A CN106686735 A CN 106686735A CN 201611222464 A CN201611222464 A CN 201611222464A CN 106686735 A CN106686735 A CN 106686735A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/53—Allocation or scheduling criteria for wireless resources based on regulatory allocation policies
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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Abstract
The invention provides a physical downlink shared channel resource mapping method. The physical downlink shared channel resource mapping method uses single antenna and 20M system bandwidth, supports resource distribution type 0 and resource distribution type 2, and at the same time introduces a set of complete avoidance method and symbol-level identifiers with high compatibility and high expansibility so as to map the physical downlink shared channel to a time frequency grid after the physical downlink shared channel performs channel avoidance. The physical downlink shared channel resource mapping method solves the problem that the resource mapping method is complicated and the operating speed is low when resource distribution conflict occurs between the physical downlink shared channel and other channels and when facing different distribution types. The physical downlink shared channel resource mapping method has the advantages of being low in cost of resource, being efficient, being high in expandability, and being able to be directly applied to a resource mapping module evolved for a long period.
Description
Technical field
The present invention relates in wide-band mobile communication field, and in particular to a kind of Physical Downlink Shared Channel esource impact side
Method.
Background technology
Long Term Evolution (LTE) downlink system is based on orthogonal frequency division multiplexing multiple access mode, supports the resource point of time-frequency domain, code domain
With and scheduling, the motility of scheduling and high efficiency have been largely fixed systematic function.Physical Downlink Shared Channel (PDSCH)
It is the main physical channel for carrying user data in LTE downlink system, during esource impact, other channels or letter need to be avoided
Number, logic is complicated, increases and realizes difficulty.All high-level signalings and business datum in LTE is carried on PDSCH, is considerably increased
Scheduling portfolio, improves the requirement to flexibility of resource allocation.
At this stage, how the rarely problem of implementation of literature research Physical Downlink Shared Channel esource impact both at home and abroad, solve
Certainly PDSCH and other channel resource allocation collision problems, and for different resource distribution type, still lack a kind of unified, Jing
The mapping method of Ji.
The content of the invention
(1) technical problem to be solved
It is an object of the invention to provide a kind of Physical Downlink Shared Channel method for mapping resource, with solve it is above-mentioned at least
One technical problem.
(2) technical scheme
The invention provides a kind of Physical Downlink Shared Channel method for mapping resource, supports esource impact type 0 and resource
Map type 2, by PDSCH T-F-grid is mapped in, comprising：
Step S1：After receiving the instruction of Physical Downlink Shared Channel esource impact, symbol level mark is generated；
Step S2：Identified according to symbol level, pretreatment is carried out to bitmap parameter, obtain pretreated data；
Step S3：If pretreated data need to jump to next symbol, the judgement that symbol level redirects condition is carried out；
If pretreated data need not jump to next symbol, Resource Block group (RBG) level or Resource Block (RB) level are carried out
Redirect the judgement of condition；
Step S4：The condition that redirects after according to judgement carries out redirecting process；
Step S5：When redirecting process, the avoidance of channel is completed, Physical Downlink Shared Channel maps successively according to symbol order
In T-F-grid, whole mappings are finally completed.
Preferably, step S1 includes：
Step S11, for esource impact type 0, extract bitmap as mapping condition and according to bitmap and generate symbol level mark
Know；
Step S12, for esource impact type 2, directly symbol level mark is generated according to resource indicated value (RIV).
Preferably, step S2 includes：
Step S21, for esource impact type 0, the memorizer and the depositor of 5 of a 25x11 is set；It is described
The memorizer of 25x11 is used for the frequency domain starting point of each RBG that storage is assigned to；The depositor of described 5 is used for storage from input
Bitmap in extract for avoiding PBCH and master sync signal (PSS) or Physical Broadcast Channel (PBCH) and (auxiliary synchronous to believe
Number) parameter needed for SSS；
Step S22, for esource impact type 2, the depositor of two 11 is set, first memory is used to store distribution
To the RB starting points of user, second memory is used for the RB length that user is distributed in storage.
Preferably, step S3 includes：
Step S31, for esource impact type 0, the judgement of the condition that redirects is divided into：Symbol level and RBG levels, wherein RBG
Level is divided into RBG levels and the common RBG levels for jumping to that PBCH and SSS or PBCH and PSS take；
Step S32, for esource impact type 2, the judgement of the condition that redirects is divided into into symbol level and RB levels, wherein RB fraction
The RB levels taken for PBCH and SSS or PBCH and with PSS and common RB levels.
Preferably, step S4 includes：
Step S41, for esource impact type 0, according to it is described redirect condition and carry out three-level redirect process：Symbol level, RBG
Level and resource element (RE) level；
Step S42, for esource impact type 2, according to it is described redirect condition and carry out three-level redirect process：Symbol level, RB
Level and RE levels.
Preferably, the avoidance of the channel in step S5 includes：Without the need for avoiding；Avoid control channel；Avoid cell special
Reference signal (CRS)；Avoid PBCH and SSS or PBCH and PSS；Or avoidance CRS and PBCH.
(3) beneficial effect
Compared with prior art, the invention has the advantages that：
1st, the present invention is complete, compatibility is good, autgmentability is strong, is widely portable to LTE downstream transmitter systems, and it is right to realize
Quick, the accurate process of PDSCH esource impacts.
2nd, the created symbol level mark that the present invention is provided, sets bitmap parameter preprocess method, and real in side circuit
Existing scheme, for the descending realizations of LTE a kind of more effective and rapid accurately innovative implementation is provided, and is effectively reduced
The process complexity of PDSCH esource impacts, improves processing speed.
3rd, the PDSCH esource impacts of quick, efficient, the accurate com-patible downmix multiple resources distribution type that the present invention is provided
Method, from realizing that angle considers the overhead and real-time of esource impact, possesses high practical value.
4th, the PDSCH esource impact schemes that the present invention is provided, support at present single antenna, 20M system bandwidths, esource impact class
Type 0 and 2, its design philosophy can extend to double antenna, various bandwidth and esource impact Class1 according to applied environment demand, with
Realize the various applications for specific system applications scene.
Description of the drawings
The step of Fig. 1 is embodiment of the present invention flow chart；
Fig. 2 maps schematic diagram for the Physical Downlink Shared Channel of the embodiment of the present invention；
Fig. 3 identifies the mode and related realization of flag for the extraction symbol level of one embodiment of the invention；
Fig. 4 a are the relation of PDSCH flag and bitmap in 0 symbol 7 of descending sub frame of one embodiment of the invention；
Fig. 4 b are the relation of PDSCH re0 and bitmap in 0 symbol 7 of descending sub frame of one embodiment of the invention；
Fig. 5 redirects process for the PDSCH of one embodiment of the invention on descending sub frame.
Specific embodiment
For the problems referred to above of existing resource mapping, a kind of Physical Downlink Shared Channel resource is embodiments provided
Mapping method, supports esource impact type 0 and esource impact type 2, after the avoidance that PDSCH carries out channel, is mapped in
T-F-grid.The method for mapping resource supports two spike-type cultivars distribution type, and at the scene on programmable gate array (FPGA)
To realization, there is reference to baseband chip exploitation.Methods described is comprised the steps of：
Step S1：After receiving the instruction of Physical Downlink Shared Channel esource impact, symbol level mark is generated；
Specifically, step S1 includes：Step S11, for esource impact type 0, extract bitmap as mapping condition
And generate symbol level mark according to bitmap；
Step S12, for esource impact type 2, directly symbol level mark is generated according to RIV.
Step S2：Identified according to symbol level, pretreatment is carried out to bitmap parameter, obtain pretreated data；
Specifically, step S2 includes：Step S21, for esource impact type 0, the memorizer of a 25x11 is set
Depositor with one 5；The memorizer of the 25x11 is used for the frequency domain starting point of each RBG that storage is assigned to；Described 5
Depositor be used for that storage to extract from the bitmap of input for avoiding PBCH and PSS or PBCH and the ginseng needed for SSS
Number；Step S22, for esource impact type 2, the depositor of two 11 is set, the first depositor distributes to use for storage
The RB starting points at family, the second depositor is used for the RB length that user is distributed in storage.
Step S3：If pretreated data need to jump to next symbol, the judgement that symbol level redirects condition is carried out；
If pretreated data need not jump to next symbol, carry out RBG levels or RB levels redirect the judgement of condition；
Specifically, step S3 includes：Step S31, for esource impact type 0, the judgement of the condition that redirects is divided into：
Symbol level and RBG levels, wherein RBG levels are divided into RBG levels and the common RBG for jumping to that PBCH and SSS or PBCH and PSS take
Level；Step S32, for esource impact type 2, the judgement of the condition that redirects is divided into into symbol level and RB levels, wherein RB levels are divided into
PBCH and SSS or PBCH and the RB levels taken with PSS and common RB levels.
Step S4：The condition that redirects after according to judgement carries out redirecting process；
Specifically, step S4 includes：Step S41, for esource impact type 0, carried out according to the condition that redirects
Three-level redirects process：Symbol level, RBG levels and RE levels；Step S42, for esource impact type 2, entered according to the condition that redirects
Row three-level redirects process：Symbol level, RB levels and RE levels.
Step S5：When redirecting process, the avoidance of channel is completed, Physical Downlink Shared Channel maps successively according to symbol order
In T-F-grid, whole mappings are finally completed.
Specifically, the avoidance of the channel in step S5 is included without the need for avoiding；Avoid control channel；Avoid CRS；Avoid
PBCH and SSS or PBCH and PSS；Or avoidance CRS and PBCH.
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in further detail.
The step of Fig. 1 is embodiment of the present invention flow chart, as shown in figure 1, first, after receiving the instruction of PDSCH esource impacts,
Resource mapping module generates symbol level mark；Identified according to symbol level, pretreatment is carried out to bitmap (bitmap) parameter, obtain pre-
Data after process；If pretreated data need to jump to next symbol, the judgement that symbol level redirects condition is carried out；If
Pretreated data need not jump to next symbol, then carry out RBG levels or RB levels redirect the judgement of condition；According to sentencing
The condition that redirects having no progeny carries out redirecting process；When redirecting process, the avoidance of channel is completed, PDSCH reflects successively according to symbol order
Penetrate in T-F-grid, be finally completed whole mappings.
DSCH Downlink Shared Channel (PDSCH) is used for the scheduled transmission of downlink data, is that the main downlink data of LTE physical layers holds
Information carrying road, can carry from the different transferring content in upper strata, including paging information, broadcast message, control information and business number
It is believed that breath etc..The transmission of LTE physical layer descendings shared channel includes " schedule information " and " data message " two parts.It is in length
In the subframe of 1ms, before 1~3 OFDM (OFDM) symbol be used to transmit Downlink Control Information, including transmission
Data scheduling information (PDCCH)；And remaining symbol is used for transmitting data information (PDSCH) in subframe, Fig. 2 is the embodiment of the present invention
Physical Downlink Shared Channel mapping schematic diagram, as shown in Fig. 2 PDSCH mapping when in addition to it need to avoid PDCCH, also need to thing
Reason HARQ indicates that channel (PHICH), Physical Control Format Indicator Channel (PCFICH), Physical Broadcast Channel (PBCH), cell are special
Avoided with reference signal (CRS), master sync signal (PSS), auxiliary synchronous signals (SSS).
Below specific implementation is said so that the symbol 7 of subframe 0 is LTE Physical Downlink Shared Channel esource impacts as an example
It is bright.This kind of mapping situation is situation most complicated in Physical Downlink Shared Channel esource impact, and wherein control format indicates (CFI)
=1, system bandwidth be 20M, number of antennas be 1.
First, after receiving the instruction of PDSCH esource impacts, during for esource impact type 0, bitmap is extracted as mapping
Condition simultaneously generates symbol level mark according to it；When esource impact type 2, then directly according to RIV generation symbol level marks
Know.
Further according to the symbol level mark for introducing, pretreatment is carried out to bitmap, obtain pretreated data, and in actual electricity
Realize in road.Fig. 3 is the mode and related realization of extracting symbol level mark flag of one embodiment of the invention, divides for different
With type, its parameter extraction process and circuit realiration are as shown in Figure 3.
(1) resource allocation type 0
It is that resource allocation information is extracted from bitmap and PBCH and SSS or PBCH and PSS is avoided, respectively defines herein
The memorizer re0 of an one 25x11 and 5 bit register flag reg, the former is used for the frequency domain of each RBG that storage is assigned to
Starting point, the latter store extract from the bitmap of input for avoiding PBCH and SSS or PBCH and the parameter needed for PSS.
In circuit realiration, re0 is stored successively the frequency domain starting point of the RBG being assigned to by row.According to the mapping of PBCH, SSS
Formula, during 20M bandwidth, PBCH takes the RE of symbol 7,8,9,10(564)To RE(623)This 72 RE, SSS also take symbol 13
This 72 RE, cover RBG(11)Last RB, RBG(12)And RBG(13)First RB, flag can be made(0)、flag(1)、
flag(2)、flag(3)、flag(4)The sequence number of RBG of 1 expression distribution is put less than 11, equal to 11, equal to 12, equal to 13, more than 13,
PBCH and SSS is efficiently and accurately avoided with this.Mxre and mxre11 stores respectively the frequency domain of the maximum RBG of the sequence number being assigned to
The frequency domain starting point of the most left RBG close to (being less than or equal to) 11 of starting point and sequence number.And under different system bandwidth, re0 and flag
The information of reg storages is different.
Resource allocation type 0 is with RBG as thread.RBG is by one or more continuous virtual resource blocks (VRB) groups
Into.RBG sizes P are determined that table 1 is the relation of RBG sizes and system bandwidth by system bandwidth, as shown in table 1,
Table 1
The sum of RBG isThe distribution information of user is by a NRBGThe bitmap (bitmap) of position refers to
Show that one RBG of each correspondence puts 1 expression user and is assigned to the RBG.
(2) resource allocation type 2
In resource allocation type 2, topmost parameter processing is to obtain RB using RIVstartAnd LCRBs.For save resources
Expense, the design utilizes low 13 storages RIV of bitmap, depositor re2, the endre for arranging two 11 to deposit respectively
RBstart、RBstart+LCRBsFrequency domain starting point, then re2=RBstart* 48, endre=(RBstart+LCRBs)*48。
By LCRBsDefinition can obtain following formula：
Can obtain after arrangement：
In conjunction with RIV definitions in 1.2 trifles, can obtain：
(1) whenWhen
(2) whenWhen,
From (1) and (2), by calculate RIV withBusiness and remainder sum x, RB is obtainedstartAnd LCRBs, tool
Body is：
Then, if pretreated data need to jump to next symbol, the judgement that symbol level redirects condition is carried out；If
Pretreated data need not jump to next symbol, then carry out RBG levels or RB levels redirect the judgement of condition；
According to esource impact criterion, through well-designed, the present invention proposes symbol level and RBG or symbol level and RB two
Level redirects condition.It is that resource allocation information is extracted from bitmap and PBCH and SSS is avoided in this enforcement, the present invention is defined respectively
The memorizer re0 of an one 25x11 and 5 bit register flag reg.With 20M bandwidth, esource impact type is 0, bitmap
It is set to as a example by 1010101010101010101010101.Fig. 4 a are accorded with for the PDSCH of one embodiment of the invention in descending sub frame 0
The relation of flag and bitmap when numbers 7, Fig. 4 b for one embodiment of the invention PDSCH in 0 symbol 7 of descending sub frame re0 and position
The relation of figure.Wherein, each indicating bits of flag and bitmap and frequency domain section corresponding relation as shown in table 2,
Table 2
| Symbol level is identified | RBG is interval | RB is interval | RE is interval |
| flag[0] | 0-11 | 0-43 | 0-527 |
| flag[1] | 12 | 44-47 | 528-575 |
| flag[2] | 13 | 48-51 | 576-623 |
| flag[3] | 14 | 52-55 | 624-671 |
| flag[4] | 15-24 | 56-99 | 672-1199 |
For resource type 0：
Because CRS takes the last RE of RBG in cell_idmod6=5, therefore and two-stage is redirected into condition it is subdivided into 1,2
Class.
(1) class of symbol level 1
The situation refers to that the RBG on a symbol has mapped, need to jump to next symbol, need to meet following three kinds of conditions
One of：
(2) class of RBG levels 1
The situation refers on same symbol, jumps to next RBG.Wherein it is divided into a types, b type two types again, respectively
Correspondence jumps to RBG(13), common RBG redirect two kinds of situations.Now PBCH and SSS or PBCH and PSS takes RBG(13)First
Individual RB, mapping should be started after redirecting from second RB.
A types. jump to RBG(13)
B types. common RBG is redirected
K==re0+47 or k==563
For the class of symbol level 2, the class of RBG levels 2：
(1) class of symbol level 2
The situation refers to that the RBG on a symbol has mapped, need to jump to next symbol, need to meet following three kinds of conditions
One of：
(2) class of RBG levels 2
The situation refers on same symbol, jumps to next RBG.Wherein it is divided into a types, b type two types again, respectively
Correspondence jumps to RBG(13), common RBG redirect two kinds of situations.Now PBCH takes RBG(13)First RB, redirect rear Ying Cong
Two RB start mapping.
A types. jump to RBG(13)
B types. common RBG is redirected
K==re0+46 or k==562
For resource type 2, because that what is be assigned to is one section of continuous VRB, situation about correspondingly redirecting without RBG levels,
Only the judgement that symbol level and RBG levels redirect condition need to be modified according to the logic that redirects of type 0, be extracted according to RIV
The position of mapping needed for PDSCH, including RB starting points and mapping length, and it is judged, symbol level mark is extracted, it is used for
Carry out symbol level and RB levels redirect conditional judgment.Equally two-stage is redirected into condition is subdivided into 1,2 classes.
(1) class of symbol level 1
The situation refers to that the RB on a symbol has mapped, need to jump to next symbol, need to meet following three kinds of conditions
One of：
(2) class of RB levels 1
The situation refers on same symbol, jumps to next RB.Wherein it is divided into a types, b type two types again, respectively
Correspondence jumps to RB(50), common RB redirect two kinds of situations.Now PBCH and SSS or PBCH and PSS takes RB(50)First
RB, mapping should be started after redirecting from second RB.
A types. jump to RB(50)
B types. common RB is redirected
K==re0+47 or k==563
For the class of symbol level 2, the class of RB levels 2：
(1) class of symbol level 2
The situation refers to that the RB on a symbol has mapped, need to jump to next symbol, need to meet following three kinds of conditions
One of：
(2) class of RB levels 2
The situation refers on same symbol, jumps to next RB.Wherein it is divided into a types, b type two types again, respectively
Correspondence jumps to RB(50), common RB redirect two kinds of situations.Now PBCH takes RB(50)First RB, should be from second after redirecting
Individual RB starts mapping.
A types. jump to RB(50)
B types. common RB is redirected
K==re0+46 or k==562
The condition that redirects after according to judgement carries out redirecting process, and Fig. 5 is the PDSCH of one embodiment of the invention in descending son
Process is redirected on frame, PDSCH carries out symbol level judgement when esource impact is carried out, preferentially, then carry out RBG level judgements, most
After be RE judgement, whole mapping process as shown in figure 5,
Process is redirected for resource type 0：
(1) symbol level is processed
If { flag [3], flag [1：0] }==3 ' b100, then
K ＜=636, l ＜=8；
If flag==5 ' b00100 and cell_idmod6==0,
K ＜=re0+1, l ＜=11；
If flag==5 ' b00100 and cell_idmod6！=0, then
K ＜=re0, l ＜=11；
Other, k ＜=re0, l ＜=8.
(2) RBG levels are processed
A types, if cell_idmod6==0, k ＜=637；Otherwise, k ＜=636.
B types, if cell_idmod6==0, k be ＜=re0+1；Otherwise, k ＜=reO.
(3) RE levels are processed
If cnt_crs==4, k be ＜=k+2；Otherwise, k ＜=k+1.
Cnt_crs initial values are 0, when counting down to 4, represent that next one RE is taken by CRS, and PDSCH must be jumped when mapping
Open.
Process is redirected for type 2：
(1) symbol level is processed
If rb_start ＜=46 and rb_len ＞=6,
K ＜=636,1 ＜=8；
If rb_start=47 and rb_len=6 and cell_idmod6==0,
K ＜=re0+1,1 ＜=11；
If rb_start=47 and rb_len=6 and cell_idmod6！=0, then
K ＜=re0,1 ＜=11；
Other, k ＜=re0,1 ＜=8.
(2) RB levels are processed
A types, if cell_idmod6==0, k ＜=637；Otherwise, k ＜=636.
B types, if cell_idmod6==0, k be ＜=re0+1；Otherwise, k ＜=re0.
(3) RE levels are processed
If cnt_crs==4, k be ＜=k+2；Otherwise, k ＜=k+1.
Cnt_crs initial values are 0, when counting down to 4, represent that next one RE is taken by CRS, and PDSCH must be jumped when mapping
Open.
In TD-LTE system, at most, table 2 is that the upper signal channel of subframe 0 maps situation for the channel mapped in subframe 0 and signal number
(CFI=1), as shown in table 2.PDSCH is most representative in the avoidance situation of subframe 0, and the present invention is main to be discussed in subframe 0
The mapping of PDSCH is illustrating the whole circumstances.
Table 3
PDSCH completes the avoidance of channel through following avoidance situation.
(1) without the need for avoiding
On the symbol mapped without other channels or signal, PDSCH directly maps according to the instruction of bitmap or RIV.
(2) control channel is avoided
When control format indicates that (CFI) is respectively 1,2,3, PDSCH starts transmission from symbol 1,2,3 respectively.
(3) CRS is avoided
Single antenna send when, between two on same symbol CRS offset 6 RE, and CRS mapping frequency domain starting point by
Value cell_idmod6 of cell_id (cell id) mould 6 is determined.
(4) PBCH and SSS or PBCH and PSS is avoided
PBCH and SSS takes identical frequency domain on distinct symbols, and PDSCH avoids the logic of the two channels and can be classified as one
Class.
(5) while avoiding PBCH and CRS
PBCH and CRS is have mapped on symbol 7, this is most complicated situation, and from this apoplexy due to endogenous wind is peelable other kinds of reflecting is separated out
Penetrate logic.
Finally, the avoidance of channel is completed, PDSCH is mapped in successively T-F-grid, is finally completed whole according to symbol order
Mapping.
Wherein, esource impact criterion：
PDSCH complex-valued symbol block y(i)..., y (0)(i)(Msymb- 1) VRB for distributing is sequentially mapped on antenna port i
On.Mapping rule is to redirect from first sign-on of subframe, first frequency domain dimension k increasing mapping, then time-domain dimension l increasings.Reflect
The resource particle penetrated need to meet condition：First, master/auxiliary synchronizing signal (PSS/SSS), cell special reference are not transmitted
(CRS), Physical Broadcast Channel (PBCH)；2nd, it is not located on the symbol of transmission control channel.
PDSCH esource impact schemes in the present invention are had application in LTE downlink resource mapping blocks, and based on Altera
The FPGA EP4SGX230KF40C3 chip platforms of company's Stratix IV series have carried out synthesis.In test case, transmitting terminal
Using single antenna, PDSCH is mapped in subframe 0, and using 64QAM modulation systems.Resource mapping module is using ping-pong operation
Principle, using the SRAM of 2 pieces of 1200x14 carry out data be stored in and read streamlined operation, simulation parameter and
The resource overhead situation for comprehensively drawing is as shown in table 4, table 5.
Table 4
Table 5
| Resource type | Take number | Total number resource | Percentage ratio |
| Combination logic | 5614 | 424960 | 1% |
| Register logical | 2277 | 424960 | 0.5% |
| Register bit | 1278257 | 21233664 | 6% |
Can be seen that from table 4 and table 5, the design resource overhead is minimum, and 5 are only needed from data input to memorizer is stored in
Individual clock cycle, time delay is minimum, fully meets the requirement of actual development.
Particular embodiments described above, has been carried out further in detail to the purpose of the present invention, technical scheme and beneficial effect
Describe in detail bright, it should be understood that the foregoing is only the specific embodiment of the present invention, be not limited to the present invention, it is all
Within the spirit and principles in the present invention, any modification, equivalent substitution and improvements done etc. should be included in the protection of the present invention
Within the scope of.
Claims (6)
1. a kind of method for mapping resource of Physical Downlink Shared Channel, supports esource impact type 0 and esource impact type 2, will
Physical Downlink Shared Channel is mapped in T-F-grid, it is characterised in that include：
Step S1：After receiving the instruction of Physical Downlink Shared Channel esource impact, symbol level mark is generated；
Step S2：Identified according to symbol level, pretreatment is carried out to bitmap parameter, obtain pretreated data；
Step S3：If pretreated data need to jump to next symbol, the judgement that symbol level redirects condition is carried out；If pre-
Data after process need not jump to next symbol, then carry out RBG levels or RB levels redirect the judgement of condition；
Step S4：The condition that redirects after according to judgement carries out redirecting process；
Step S5：When redirecting process, the avoidance of channel is completed, when Physical Downlink Shared Channel is mapped in successively according to symbol order
Frequency grid, is finally completed whole mappings.
2. method according to claim 1, it is characterised in that step S1 includes：
Step S11, for esource impact type 0, extract bitmap as mapping condition and according to bitmap and generate symbol level mark；
Step S12, for esource impact type 2, directly symbol level mark is generated according to RIV.
3. method according to claim 1, it is characterised in that step S2 includes：
Step S21, for esource impact type 0, the memorizer and the depositor of 5 of a 25x11 is set；It is described
The memorizer of 25x11 is used for the frequency domain starting point of each RBG that storage is assigned to；The depositor of described 5 is used for storage from input
Bitmap in extract for avoiding PBCH and PSS or PBCH and the parameter needed for SSS；
Step S22, for esource impact type 2, the depositor of two 11 is set, first memory distributes to use for storage
The RB starting points at family, second memory is used for the RB length that user is distributed in storage.
4. method according to claim 1, it is characterised in that step S3 includes：
Step S31, for esource impact type 0, the judgement of the condition that redirects is divided into：Symbol level and RBG levels, wherein RBG fraction
To jump to RBG levels and the common RBG levels that PBCH and SSS or PBCH and PSS take；
Step S32, for esource impact type 2, the judgement of the condition that redirects is divided into into symbol level and RB levels, wherein RB levels are divided into
PBCH and SSS or PBCH and the RB levels taken with PSS and common RB levels.
5. method according to claim 1, it is characterised in that step S4 includes：
Step S41, for esource impact type 0, according to it is described redirect condition and carry out three-level redirect process：Symbol level, RBG levels and
RE levels；
Step S42, for esource impact type 2, according to it is described redirect condition and carry out three-level redirect process：Symbol level, RB levels and
RE levels.
6. method according to claim 1, it is characterised in that the avoidance of the channel in step S5 includes：Need not keep away
Allow；Avoid control channel；Avoid CRS；Avoid PBCH and SSS or PBCH and PSS；Or avoidance CRS and PBCH.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110892657A (en) * | 2017-08-10 | 2020-03-17 | 中兴通讯股份有限公司 | Transmission of common control blocks |
| WO2020088188A1 (en) * | 2018-11-01 | 2020-05-07 | 维沃移动通信有限公司 | Transmission method, transmission end device, receiving end device and network side device |
| CN113056888A (en) * | 2018-09-21 | 2021-06-29 | 三星电子株式会社 | Method and apparatus for low latency and high reliability data transmission in a wireless communication system |
| CN113170443A (en) * | 2018-08-23 | 2021-07-23 | 夏普株式会社 | Terminal device, base station device, and communication method |
| CN115484684A (en) * | 2022-09-15 | 2022-12-16 | 三维通信股份有限公司 | Channel resource mapping method and device, storage medium and electronic device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2406898A2 (en) * | 2009-06-30 | 2012-01-18 | LG Electronics Inc. | Flexible allocation of control signal resources |
| CN103248599A (en) * | 2012-02-06 | 2013-08-14 | 京信通信系统（中国）有限公司 | Method and device for mapping physical resource of physical downlink shared channel |
| CN103957090A (en) * | 2014-04-10 | 2014-07-30 | 中国科学院自动化研究所 | Vectorization achieving method and device of LTE system resource mapping |
| CN105636122A (en) * | 2014-10-28 | 2016-06-01 | 深圳市中兴微电子技术有限公司 | Physical resource element quick mapping method and physical resource element quick mapping device |
-
2016
- 2016-12-26 CN CN201611222464.2A patent/CN106686735A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2406898A2 (en) * | 2009-06-30 | 2012-01-18 | LG Electronics Inc. | Flexible allocation of control signal resources |
| CN103248599A (en) * | 2012-02-06 | 2013-08-14 | 京信通信系统（中国）有限公司 | Method and device for mapping physical resource of physical downlink shared channel |
| CN103957090A (en) * | 2014-04-10 | 2014-07-30 | 中国科学院自动化研究所 | Vectorization achieving method and device of LTE system resource mapping |
| CN105636122A (en) * | 2014-10-28 | 2016-06-01 | 深圳市中兴微电子技术有限公司 | Physical resource element quick mapping method and physical resource element quick mapping device |
Non-Patent Citations (1)
| Title |
|---|
| 何云瑞,张瑞齐,宋 华: "TD-LTE下行系统中PDSCH资源映射设计与实现", 《太赫兹科学与电子信息学报》 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110892657A (en) * | 2017-08-10 | 2020-03-17 | 中兴通讯股份有限公司 | Transmission of common control blocks |
| CN110892657B (en) * | 2017-08-10 | 2021-07-09 | 中兴通讯股份有限公司 | Transmission of common control blocks |
| CN113170443A (en) * | 2018-08-23 | 2021-07-23 | 夏普株式会社 | Terminal device, base station device, and communication method |
| CN113170443B (en) * | 2018-08-23 | 2024-01-19 | 夏普株式会社 | Terminal device, base station device, and communication method |
| CN113056888A (en) * | 2018-09-21 | 2021-06-29 | 三星电子株式会社 | Method and apparatus for low latency and high reliability data transmission in a wireless communication system |
| CN113056888B (en) * | 2018-09-21 | 2024-04-12 | 三星电子株式会社 | Method and apparatus for low latency and high reliability data transmission in a wireless communication system |
| WO2020088188A1 (en) * | 2018-11-01 | 2020-05-07 | 维沃移动通信有限公司 | Transmission method, transmission end device, receiving end device and network side device |
| CN115484684A (en) * | 2022-09-15 | 2022-12-16 | 三维通信股份有限公司 | Channel resource mapping method and device, storage medium and electronic device |
| WO2024055729A1 (en) * | 2022-09-15 | 2024-03-21 | 三维通信股份有限公司 | Channel resource mapping method and apparatus, storage medium and electronic apparatus |
| CN115484684B (en) * | 2022-09-15 | 2024-05-24 | 三维通信股份有限公司 | Mapping method and device of channel resources, storage medium and electronic device |
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