CN102271402B - Method and device for mapping resource in downlink control channel - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
- H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
- H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
- H04L1/1867—Arrangements specially adapted for the transmitter end
- H04L1/1893—Physical mapping arrangements
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The invention discloses a method and a device for mapping resource in a downlink control channel. The method comprises the following steps: sorting REG (Resource Element Group) in the downlink control channel; using the mapping address of PCFICH (Physical Control Format Indicator Channel) data in the downlink control channel and the mapping address of PHICH (Physical Hybrid Automatic Repeat Indicator Channel) data in the downlink control channel; endowing a sorted serial number to the PDCCH (Physical Download Control Channel) data in the downlink control channel; and according to the sequence of the serial number, obtaining the data in the downlink control channel corresponding to the serial number so as to map the resource in the downlink control channel. According to the method disclosed by the invention, the PDCCH data is cached, storage and time delay pressure are lowered.
Description
Technical field
The present invention relates to the communications field, in particular to mapping method and the device of the resource in a kind of down control channel.
Background technology
According to third generation partner program (3rd Generation Partnership Project, referred to as 3GPP) Long Term Evolution (Long-Term Evolution, referred to as LTE) physical layer protocol, downlink transmission adopts OFDM (OrthogonalFrequency Division Multiplexing, referred to as OFDM) technology, carry by the mutually orthogonal signal of each physical resource message on a symbol, and these physical resource message will be mapped in a resource grid in advance, the least unit of resource grid is resource element (Resource Element, referred to as RE), each RE carries a valid data message.
LTE down control channel refers to PBCH, Physical Control Format Indicator Channel (Physical Control Format Indicator Channel, referred to as PCFICH), physical hybrid automatic repeat request indicator channel (Physical Hybrid Automatic RepeatRequest Indicator Channel, referred to as PHICH), Physical Downlink Control Channel (Physical Downlink Control Channel, referred to as PDCCH) these four kinds of channels, wherein PBCH channel data is mapped in the fixed position of fixing subframe, map successively according to subcarrier in frequency domain order, its mapping is completely static, rear three kinds of channel datas are mapped in front n (1≤n≤3) the individual symbol of each subframe, they are according to resource element group (ResourceElement Group, referred to as REG) map for unit, each REG is that continuous print 4 on frequency domain (not containing pilot tone) or 6 (containing pilot tone) RE form, corresponding to 4 continuous print modulating datas of control channel, so hereafter mentioned data all refer to the four word groups that four modulating datas are formed.The mapping order of these three kinds of channels is: be first mapped in first OFDM symbol by PCFICH channel data according to configuration, then according to the mapping position of configuration and PCFICH, PHICH is mapped on a front n symbol, finally left REG is used to map PDCCH channel data, before mapping PDCCH, first to do data and interweave and circulative shift operation, then complete mapping according to the mapping order of first time domain frequency domain again.
Can find out that OFDM symbol generates from agreement is by after all subcarrier message maps a symbol, and unification is carried out converting, launching, and then processes next symbol.But, the data of PDCCH are according to REG Sequential Mapping, not corresponding with the order of the subcarrier in symbol, that is first data of first not corresponding PDCCH of subcarrier, also may be last, will cause like this by the data of PDCCH whole buffer memory in advance, then must peeking from corresponding buffer address according to subcarrier order, and very large storage and time delay pressure can be brought to system like this before OFDM symbol generates.
Summary of the invention
For the order of subcarrier and the data sequence of PDCCH not corresponding, thus the data of PDCCH, all carrying out the problem of buffer memory in advance, the present invention must be proposed, for this reason, main purpose of the present invention is method and the device of the resource mapping provided in a kind of down control channel, to solve the problem.
To achieve these goals, according to an aspect of the present invention, the mapping method of the resource in a kind of down control channel is provided.
Mapping method according to the resource in down control channel of the present invention comprises: sort to the REG in down control channel; Using the mapping address of the data of the PHICH in the mapping address of the data of the PCFICH in down control channel and down control channel, is the sequence number after the data of the PDCCH in down control channel give sequence; According to the order of sequence number, obtain the data in down control channel corresponding to sequence number, thus realize the mapping of the resource in down control channel.
Further, REG sorts according to the order of frequency domain after first time domain.
Further, use the mapping address of the data of the PHICH in the mapping address of the data of the PCFICH in down control channel and down control channel, data for the PDCCH in down control channel are given the sequence number after sorting and are comprised: use the notation index in mapping address and sub-carrier indices, are that the data of PCFICH and PHICH give the sequence number after sorting; Use the sequence number after sequence, and get rid of the sequence number of the data of PCFICH and PHICH, as the sequence number of the data of PDCCH.
Further, according to the order of sequence number, the data obtaining sequence number corresponding comprise: according to the order of sequence number, the REG corresponding to sequence number resolves; Determine that the channel type that the REG after resolving is corresponding is PCFICH or PHICH; Obtain the data of PCFICH or PHICH as data corresponding to sequence number.
Further, according to the order of sequence number, the data obtaining sequence number corresponding comprise: according to the order of sequence number, the REG corresponding to sequence number resolves; Determine that the channel type that the REG after resolving is corresponding is PDCCH; According to the data of PDCCH at the address corresponding relation interweaved and before and after cyclic shift, the data of acquisition PDCCH are as data corresponding to sequence number.
Further, said method also comprises: according to intertexture and the cyclic shift relation of PDCCH, pre-determines the data of PDCCH at the address corresponding relation interweaved and before and after cyclic shift.
To achieve these goals, according to a further aspect in the invention, the mapping device of the resource in a kind of down control channel is provided.
Mapping device according to the resource in down control channel of the present invention comprises: order module, for sorting to the REG in down control channel region; Assignment module, for using the mapping address of the data of the PHICH in the mapping address of the data of the PCFICH in down control channel and down control channel, is the sequence number after the data of the PDCCH in down control channel give sequence; Acquisition module, for the order according to sequence number, obtains the data in down control channel corresponding to sequence number, thus realizes the mapping of the resource in down control channel.
Further, order module is sort according to the order of frequency domain after first time domain to REG.
Further, assignment module comprises: assignment submodule, for using notation index in mapping address and sub-carrier indices, is the sequence number after the data of PCFICH and PHICH give sequence; Determine submodule, for determining the sequence number after sorting and getting rid of the sequence number of sequence number as the data of PDCCH of the data of PCFICH and PHICH.
Further, acquisition module comprises: analyzing sub-module, and for the order according to sequence number, the REG corresponding to sequence number resolves; Second determines submodule, for determining that the channel type that the REG after resolving is corresponding is PCFICH or PHICH; First obtains submodule, for the data that obtain PCFICH or PHICH as data corresponding to sequence number; 3rd determines submodule, for determining that the channel type that the REG after resolving is corresponding is PDCCH; Second obtains submodule, and for the data according to PDCCH at the address corresponding relation interweaved and before and after cyclic shift, the data of acquisition PDCCH are as data corresponding to sequence number.
Pass through the present invention, adopt and the REG of control channel is sorted, establish the corresponding relation of REG and subcarrier, because PDCCH data are according to REG Sequential Mapping, thus indirectly establishing the corresponding relation of PDCCH data and subcarrier sequence number, the order solving subcarrier is not corresponding with the data sequence of PDCCH, thus must by the data of PDCCH in prior problem of all carrying out buffer memory, avoid and buffer memory is carried out to the data of PDCCH, and reduce storage and time delay pressure.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, and form a application's part, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the mapping method according to the resource in the down control channel of the embodiment of the present invention;
Fig. 2 is the structured flowchart of the mapping device according to the resource in the down control channel of the embodiment of the present invention;
The schematic diagram that Fig. 3 is a single antenna according to the embodiment of the present invention, CFI value is 3, bandwidth is the REG of 20M and the corresponding relation of subcarrier;
Fig. 4 is the structure chart of the control channel resource mapping according to the embodiment of the present invention;
Fig. 5 is the detail flowchart of the control channel resource mapping according to the embodiment of the present invention.
Embodiment
It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.Below with reference to the accompanying drawings and describe the present invention in detail in conjunction with the embodiments.
Fig. 1 is the flow chart of the mapping method according to the resource in the down control channel of the embodiment of the present invention.Comprise following step:
Step S102, sorts to the REG in down control channel.
Step S104, uses the mapping address of the data of the PHICH in the mapping address of the data of the PCFICH in down control channel and down control channel, is the sequence number after the data of the PDCCH in down control channel give sequence.
Step S106, according to the order of sequence number, obtains the data in down control channel corresponding to sequence number, thus realizes the mapping of the resource in down control channel.
In correlation technique, the order of subcarrier is not corresponding with the data sequence of PDCCH, thus the data of PDCCH all must carried out buffer memory in advance.In the embodiment of the present invention, by establishing the corresponding relation of REG and subcarrier to REG sequence; Then, sequence number after sequence is assigned to the data of PDCCH, can realizes by PDCCH data according to REG Sequential Mapping, thus indirectly establish the corresponding relation of PDCCH data and subcarrier sequence number, avoid and buffer memory is carried out to the data of PDCCH, and reduce storage and time delay pressure.
Preferably, REG sorts according to the order of frequency domain after first time domain.
It should be noted that, REG can according to the order of frequency domain after first time domain, and is numbered sequence from 0 to M, thus can set up REG and subcarrier relation one to one.
Preferably, use the mapping address of the data of the PHICH in the mapping address of the data of the PCFICH in down control channel and down control channel, data for the PDCCH in down control channel are given the sequence number after sorting and are comprised: use the notation index in mapping address and sub-carrier indices, are that the data of PCFICH and PHICH give the sequence number after sorting; Use the sequence number after sequence, and get rid of the sequence number of the data of PCFICH and PHICH, as the sequence number of the data of PDCCH.
It should be noted that, the data due to PCFICH, PHICH and PDCCH tri-kinds of channels are mapped to the sequence number of above-mentioned all REG, therefore, by getting rid of the sequence number of the data of PCFICH and PHICH, can determine the sequence number of the remaining data for PDCCH.Then, by the one_to_one corresponding of the data sequence of this sequence number and PDCCH, and the corresponding relation of this sequence number and symbol number and subcarrier number in Fig. 3, and then establish the one-to-one relationship of PDCCH data and subcarrier, so just can carry out mapping (enum) data according to subcarrier order, avoid carrying out buffer memory to the data of PDCCH, and reduce storage and time delay pressure.Therefore, the implementation of this preferred embodiment is simple, and possesses higher reliability.
Preferably, according to the order of sequence number, the data obtaining sequence number corresponding comprise: according to the order of sequence number, the REG corresponding to sequence number resolves; Determine that the channel type that the REG after resolving is corresponding is PCFICH or PHICH; Obtain the data of PCFICH or PHICH as data corresponding to sequence number.
Preferably, according to the order of sequence number, the data obtaining sequence number corresponding also comprise: according to the order of sequence number, the REG corresponding to sequence number resolves; Determine that the channel type that the REG after resolving is corresponding is PDCCH; According to the data of PDCCH at the address corresponding relation interweaved and before and after cyclic shift, the data of acquisition PDCCH are as data corresponding to sequence number.Wherein, this address corresponding relation be according to the intertexture of PDCCH and cyclic shift relation predetermined.
It should be noted that, the data of PDCCH are interweaving and address before and after cyclic shift can change, and therefore, can be obtained the data of this PDCCH by address corresponding relation exactly, and what namely obtain this REG mapping exactly is which data in PDCCH.
Embodiments provide the mapping device of the resource in a kind of down control channel, this device may be used for the mapping method of the resource realized in above-mentioned down control channel.Fig. 2 is the structured flowchart of the mapping device according to the resource in the down control channel of the embodiment of the present invention, comprises order module 22, assignment module 24 and acquisition module 26.
Order module 22, for sorting to REG.Assignment module 24, be connected to order module 22, for using the mapping address of the data of the PHICH in the mapping address of the data of the PCFICH in down control channel and down control channel, be the data of the PDCCH in down control channel give order module 22 sort after sequence number; Acquisition module 26, is connected to order module 22 and assignment module 24, for the order according to order module 22 sequence number, obtains the data in down control channel corresponding to the sequence number after assignment module 24 assignment, thus realizes the mapping of the resource in down control channel.
Preferably, order module 22 couples of REG sort according to the order of frequency domain after first time domain.
Preferably, assignment module 24 comprises: assignment submodule 242 and determine submodule 244.
Assignment submodule 242, is connected to order module 22, for using notation index in mapping address and sub-carrier indices, be the data of PCFICH and PHICH give order module 22 sort after sequence number; Determine submodule 244, be connected to order module 22 and assignment submodule 242, for determine order module 22 sort after sequence number and get rid of the sequence number of sequence number as the data of PDCCH that assignment submodule 242 is the data assignment of PCFICH and PHICH.
Further, acquisition module 26 comprises analyzing sub-module 261, and second determines submodule 262, and first obtains submodule the 263, three determines that submodule 264 and second obtains submodule 265.
Analyzing sub-module 261, is connected to order module 22 and assignment module 24, and for the order according to order module 22 sequence number, the REG corresponding to the sequence number after assignment module 24 assignment resolves; Second determines submodule 262, for determining that the channel type that the REG after analyzing sub-module 261 parsing is corresponding is PCFICH or PHICH; First obtains submodule 263, is connected to second and determines submodule 262, determines that the data of submodule 262 PCFICH or PHICH are definitely as data corresponding to sequence number for obtaining second.Similarly, the 3rd determines submodule 264, is connected to analyzing sub-module 261, for determining that the channel type that the REG after analyzing sub-module 261 parsing is corresponding is PDCCH; Second obtains submodule 265, is connected to the 3rd and determines submodule 264, and for the data according to PDCCH at the address corresponding relation interweaved and before and after cyclic shift, the data of acquisition PDCCH are as data corresponding to sequence number.
Below the mapping device of the resource in above-mentioned down control channel is described in detail.
This device comprises REG computing module, PCFICH and PHICH mapping address computing module, interweaves and circular shift module, resolves and mapping block, wherein,
The schematic diagram that Fig. 3 is a single antenna according to the embodiment of the present invention, CFI value is 3, bandwidth is the REG of 20M and the corresponding relation of subcarrier.
In Fig. 3, three row represent three symbols mapping control channel data respectively, each symbol there are 1200 subcarriers, totally 3600 subcarriers, corresponding 800 REG, symbol 0 has 200 (each REG comprises continuous print 6 subcarriers), symbol 1,2 each 300 (each REG comprises continuous print 4 subcarriers).
REG computing module, according to the REG distribution shown in Fig. 3, generates two tables, RAM1, is that REG sequence number is as content using symbol number and subcarrier as address.RAM2 is using REG sequence number as address, using symbol number with subcarrier number as storing content.
PCFICH and PHICH mapping address computing module, calculates the mapping address of PCFICH and PHICH.
Interweave and circular shift module, generate a RAM according to the exchange pattern that agreement specify, address is the Data Position interweaved before displacement, and corresponding storage data are the Data Position after intertexture and cyclic shift.
Parsing module, order resolves each REG, just can generate a RAM, address correspondence subcarrier number, which data of the channel type that content corresponding to address maps for this RE and this channel.
Mapping block, by reading the RAM of parsing module, the data buffer storage respectively to each channel sends request of data, by the data-mapping of request on sub-carriers, delivers to IFFT module and generates to complete OFDM symbol.
Present invention also offers a preferred embodiment, combine the technical scheme of above-mentioned multiple preferred embodiment, describe in detail below in conjunction with Fig. 3 to Fig. 5.
REG computing module, according to the CFI value of current configuration, antenna port number and bandwidth messages calculate the total number of the REG that can be used for Bearer Control channel in this subframe, as for single antenna, when 20M, CFI value is 3, the REG number of symbol 0 is 200, the REG number of symbol 2 and symbol 3 is 300, and total REG number is 800, can calculate symbol corresponding to each REG number and subcarrier number.Generate 2 RAM, RAM1 symbol number as address, REG numbering to be stored together with subcarrier number simultaneously; Corresponding symbol number stores with subcarrier number using REG numbering as address by RAM2;
Interweave and circular shift module, mainly complete the intertexture before to PDCCH data-mapping and circulative shift operation, first by data according to row major order, often row 32 number, line up several rows, inadequate integer is capable fills NULL before the first row, then according to the exchange pattern that agreement specifies, according to row priority principle by data reading, remove NULL simultaneously, be finally that side-play amount carries out cyclic shift with CELL_ID by data, obtain last data sequence, and the data address corresponding relation interweaved with displacement front and back is stored, namely the Data Position after interweaving is as address, Data Position before corresponding intertexture is as storage content.
PCFICH and PHICH mapping address computing module, according to community ID, band width configuration, and PHICH group number, just can calculate symbol that each data of PCFICH and PHICH channel map number and subcarrier number, go to read RAM1 as address with subcarrier number with this symbol number, just can draw the REG numbering that these data map, the REG read is numbered as address simultaneously, these data are stored in RAM3 with certain mark, as high 2bit represents channel type, low 10bit represents which data of this channel, remaining REG is then all for mapping PDCCH data, because PDCCH also will have intertexture and circulative shift operation before mapping, so time can not determine remaining REG to map be which data of PDCCH, therefore unification represents with 10 ' b1111111111.Wait to interweave and circulate.
After shift module computing, order reads RAM3, if the channel type read is PCFICH or PHICH, data remain unchanged, if first time, read channel type was PDCCH, then inquiry interweaves and circular shift module, inquire address is 0, position before the PDCCH that the data read map for this REG interweaves, if second time read channel type is PDCCH, then inquiry interweaves and circular shift module, inquire address is 1, the like.
While order reads RAM3, the channel type mapped with this REG of data representation that RAM2, RAM3 reading is read in same address and which data of this channel, be designated as ch_typeindex; The symbol corresponding to this REG of data representation number that RAM2 reads and subcarrier number, be designated as ofdm_subcarry_index; Again using ofdm_subcarry_index as address, which be stored in RAM4 using ch_type_index and cell index as storage data, data of the control channel type that each subcarrier that RAM4 then indicates each symbol maps and this channel.
Resolve and mapping block, each symbol reads RAM4 according to subcarrier order, just can determine which data of the channel type that this RE maps and this channel, then the data to the data buffer area request corresponding bits of each channel complete scrambling, modulation, MIMO successively, finally be mapped on RE, after collecting all RE of a symbol, start IFFT and carry out OFDM symbol generation.
It should be noted that, the mapping device of the resource in the down control channel described in device embodiment corresponds to above-mentioned embodiment of the method, and its concrete implementation procedure carried out detailed description in embodiment of the method, did not repeat them here.
In sum, according to the abovementioned embodiments of the present invention, mapping method and the device of the resource in a kind of down control channel is provided.Adopt and multiple REG is sorted, and utilize the result of this sequence to set up the data of the PDCCH in down control channel and the corresponding relation of subcarrier, the order solving subcarrier is not corresponding with the data sequence of PDCCH, thus must by the data of PDCCH in prior problem of all carrying out buffer memory, avoid and buffer memory is carried out to the data of PDCCH, and reduce storage and time delay pressure.
Obviously, those skilled in the art should be understood that, above-mentioned of the present invention each module or each step can realize with general calculation element, they can concentrate on single calculation element, or be distributed on network that multiple calculation element forms, alternatively, they can realize with the executable program code of calculation element, thus, they can be stored and be performed by calculation element in the storage device, or they are made into each integrated circuit modules respectively, or the multiple module in them or step are made into single integrated circuit module to realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a mapping method for the resource in down control channel, is characterized in that, comprising:
Resource element group REG in described down control channel is sorted;
Use the mapping address of the data of the physical hybrid automatic repeat request indicator channel PHICH in the mapping address of the data of the Physical Control Format Indicator Channel PCFICH in described down control channel and described down control channel, the data for the physical downlink control channel PDCCH in described down control channel give the sequence number after described sequence;
According to the order of described sequence number, obtain the data in described down control channel corresponding to described sequence number, thus realize the mapping of the resource in described down control channel.
2. method according to claim 1, is characterized in that, described REG sorts according to the order of frequency domain after first time domain.
3. method according to claim 1, it is characterized in that, use the mapping address of the data of the PHICH in the mapping address of the data of the PCFICH in described down control channel and described down control channel, for the data of the PDCCH in described down control channel give described sequence after sequence number comprise:
Use the notation index in described mapping address and sub-carrier indices, the data for described PCFICH and described PHICH give the sequence number after described sequence;
Use the sequence number after described sequence, and get rid of the sequence number of the data of described PCFICH and described PHICH, as the sequence number of the data of described PDCCH.
4. method according to claim 1, is characterized in that, according to the order of described sequence number, the data obtaining described sequence number corresponding comprise:
According to the order of described sequence number, the REG corresponding to described sequence number resolves;
Determine that the channel type that the REG after described parsing is corresponding is described PCFICH or described PHICH;
The data obtaining described PCFICH or described PHICH are as data corresponding to described sequence number.
5. method according to claim 1, is characterized in that, according to the order of described sequence number, the data obtaining described sequence number corresponding comprise:
According to the order of described sequence number, the REG corresponding to described sequence number resolves;
Determine that the channel type that the REG after described parsing is corresponding is described PDCCH;
According to the data of PDCCH at the address corresponding relation interweaved and before and after cyclic shift, the data obtaining described PDCCH are as data corresponding to described sequence number.
6. method according to any one of claim 1 to 5, is characterized in that, also comprises:
According to intertexture and the cyclic shift relation of described PDCCH, pre-determine the data of described PDCCH at the address corresponding relation interweaved and before and after cyclic shift.
7. a mapping device for the resource in down control channel, is characterized in that, comprising:
Order module, for sorting to the resource element group REG in described down control channel region;
Assignment module, for using the mapping address of the data of the PHICH in the mapping address of the data of the PCFICH in described down control channel and described down control channel, the data for the PDCCH in described down control channel give the sequence number after described sequence;
Acquisition module, for the order according to described sequence number, obtains the data in described down control channel corresponding to described sequence number, thus realizes the mapping of the resource in described down control channel.
8. device according to claim 7, is characterized in that, described order module is sort according to the order of frequency domain after first time domain to REG.
9. device according to claim 7, is characterized in that, described assignment module comprises:
Assignment submodule, for using notation index in described mapping address and sub-carrier indices, the data for described PCFICH and described PHICH give the sequence number after described sequence;
Determine submodule, get rid of the sequence number of sequence number as the data of described PDCCH of the data of described PCFICH and described PHICH for the sequence number after determining described sequence.
10. device according to claim 7, is characterized in that, described acquisition module comprises:
Analyzing sub-module, for the order according to described sequence number, the REG corresponding to described sequence number resolves;
Second determines submodule, for determining that the channel type that the REG after described parsing is corresponding is described PCFICH or described PHICH;
First obtains submodule, for the data that obtain described PCFICH or described PHICH as data corresponding to described sequence number;
3rd determines submodule, for determining that the channel type that the REG after described parsing is corresponding is described PDCCH;
Second obtains submodule, and for the data according to PDCCH at the address corresponding relation interweaved and before and after cyclic shift, the data obtaining described PDCCH are as data corresponding to described sequence number.
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| CN201010197816.XA CN102271402B (en) | 2010-06-03 | 2010-06-03 | Method and device for mapping resource in downlink control channel |
| PCT/CN2010/078302 WO2011150625A1 (en) | 2010-06-03 | 2010-11-01 | Method and device for mapping resources of downlink control channel |
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| CN103327493B (en) | 2012-03-19 | 2016-12-21 | 电信科学技术研究院 | EPDCCH resource units quantity determines method and device |
| CN103580787B (en) * | 2012-07-27 | 2019-06-14 | 中兴通讯股份有限公司 | A kind of control channel resource mapping apparatus and method |
| US9077416B2 (en) | 2012-12-31 | 2015-07-07 | Spreadtrum Communications (Shanghai) Co., Ltd. | Method and apparatus for demodulating downlink channel in communication system and baseband chip |
| US9054837B2 (en) | 2012-12-31 | 2015-06-09 | Spreadtrum Communications (Shanghai) Co., Ltd. | Demodulation method and apparatus, decoding method and apparatus and baseband chip in communication system |
| US11825482B2 (en) * | 2016-10-03 | 2023-11-21 | Qualcomm Incorporated | Techniques for improved control channels |
| CN109150484B (en) | 2017-05-04 | 2020-01-21 | 华为技术有限公司 | Control information transmission method, related device and computer storage medium |
| CN111163526B (en) * | 2019-12-27 | 2022-12-30 | 京信网络系统股份有限公司 | Downlink resource mapping method, device, computer equipment and storage medium |
| CN113840327B (en) * | 2021-10-09 | 2023-09-29 | 杰创智能科技股份有限公司 | LTE control channel resource mapping method and device |
| CN115118384B (en) * | 2022-05-16 | 2024-04-16 | 成都爱瑞无线科技有限公司 | Data processing method and device of PDCCH channel and storage medium |
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- 2010-11-01 WO PCT/CN2010/078302 patent/WO2011150625A1/en active Application Filing
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| WO2009056943A2 (en) * | 2007-10-29 | 2009-05-07 | Telefonaktiebolaget L M Ericsson (Publ) | Control channel data allocation method in ofdm systems |
| CN101605023A (en) * | 2008-06-10 | 2009-12-16 | 中兴通讯股份有限公司 | Control channel method for mapping resource and device |
| CN101610586A (en) * | 2008-06-18 | 2009-12-23 | 中兴通讯股份有限公司 | The method for mapping resource of control channel in the ofdm system |
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| WO2011150625A1 (en) | 2011-12-08 |
| CN102271402A (en) | 2011-12-07 |
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