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WO2014019144A1 - Procédé de transmission pour canal de commande, station de base et terminal - Google Patents

Procédé de transmission pour canal de commande, station de base et terminal Download PDF

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Publication number
WO2014019144A1
WO2014019144A1 PCT/CN2012/079441 CN2012079441W WO2014019144A1 WO 2014019144 A1 WO2014019144 A1 WO 2014019144A1 CN 2012079441 W CN2012079441 W CN 2012079441W WO 2014019144 A1 WO2014019144 A1 WO 2014019144A1
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WO
WIPO (PCT)
Prior art keywords
resource unit
resource
unit group
mapping
numbers
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/079441
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English (en)
Chinese (zh)
Inventor
刘建琴
刘江华
吴强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to PCT/CN2012/079441 priority Critical patent/WO2014019144A1/fr
Priority to CN201280009876.1A priority patent/CN104137463B/zh
Publication of WO2014019144A1 publication Critical patent/WO2014019144A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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 signalling, i.e. of overhead other than pilot signals
    • 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) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT the frequencies being arranged in component carriers

Definitions

  • the present application relates to communication technologies, and in particular, to a control channel transmission method, a base station, and a terminal. Background technique
  • a physical downlink control channel (Physical Downlink Control Channel) based on precoding is introduced.
  • PDCCH Physical Downlink Control Channel
  • ePDCCH Enhanced Physical Downlink Control Channel
  • the ePDCCH may be demodulated based on a User Equipment (UE) specific reference signal, that is, a Demodulation Reference Signal (DMRS).
  • UE User Equipment
  • DMRS Demodulation Reference Signal
  • the ePDCCH and the Physical Downlink Shared Channel (PDSCH) are frequency-divided.
  • the base station may send the ePDCCH on a physical resource block (PRB) with better channel conditions according to the channel state reported by the terminal.
  • PRB pair physical resource block pair
  • aspects of the present application provide a control channel transmission method, and a base station and a terminal, which are configured to implement an Enhanced Control Channel Element (eCCE) or an enhanced resource element group (Enhanced Resource Element Group) in a physical resource block pair.
  • eCCE Enhanced Control Channel Element
  • Enhanced Resource Element Group Enhanced Resource Element Group
  • eREG transmits control information of some control channels such as ePDCCH bearers.
  • An aspect of the present application provides a control channel transmission method, including:
  • the physical resource block pair Determining at least one physical resource block pair for transmitting a control channel, the physical resource block pair And a first number of the first resource unit groups, where the physical resource block pair includes N the OFDM symbols, and each of the N OFDM symbols corresponds to one from the first resource unit a mapping rule to a resource unit in the pair of physical resource blocks, where N is an integer greater than or equal to 1;
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the N mapping rules corresponding to the N OFDM symbols include at least two different rules.
  • the resource of the first resource unit group corresponding to the resource unit corresponding to the first available subcarrier in each OFDM symbol The unit group number is different.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the first resource unit group includes a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair; or f ' surgery t , , f - At least one of the resource elements other than the resource element of the home code and/or other control channel mapping.
  • the method further includes: numbering a resource element set corresponding to an eCCE included in the first resource unit group;
  • the rule includes a first mapping rule, where the first mapping rule includes: the resource element set numbers corresponding to the eCCEs corresponding to the resource units corresponding to the subcarriers sequentially numbered in the same OFDM symbol are sequentially arranged and cyclically arranged.
  • the method further includes: numbering an eREG included in the first resource unit group; the mapping rule includes a first mapping rule
  • the first mapping rule includes: The eREG numbers corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the same OFDM symbol are sequentially arranged and arranged in a loop.
  • the method further includes: numbering a resource element set corresponding to an eCCE included in the first resource unit group;
  • the rule includes a first mapping rule, where the first mapping rule includes: the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resources in the frequency domain in the same OFDM symbol a unit, and the resource unit set numbers corresponding to the eCCEs corresponding to the resource units corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol are sequentially arranged and cyclically arranged; and/or
  • the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resource units in the frequency domain in the same OFDM symbol, and the even subcarrier numbers are sequentially arranged in the same OFDM symbol.
  • the resource unit set numbers corresponding to the eCCEs corresponding to the resource units corresponding to the subcarriers are sequentially arranged and arranged in a loop.
  • the method further includes: numbering an eREG included in the first resource unit group; the mapping rule includes a first mapping rule
  • the first mapping rule includes:
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and corresponding to the resource units corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol
  • the eREG numbers are arranged in sequence and arranged in a loop; and/or
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and the resource units corresponding to the subcarriers in which the even subcarrier numbers are sequentially arranged in the same OFDM symbol correspond to The eREG numbers are arranged in order and arranged in a loop.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the resource unit set number or the eREG number corresponding to the eCCE is arranged in a small to large cycle or in a large to small cycle.
  • the resource unit set number or the eREG number corresponding to the corresponding eCCE has been minimized, the resource unit set number or the eREG number corresponding to the eCCE is arranged in a large to small cycle.
  • mapping rule further includes a second mapping rule
  • the order of the resource unit sets corresponding to the eCCEs corresponding to the resource units corresponding to the sub-carriers in the same OFDM symbol in the same OFDM symbol is sequentially numbered by the same OFDM symbol in the first mapping rule.
  • the arrangement order of the resource unit sets corresponding to the eCCE corresponding to the resource unit corresponding to the aligned subcarriers is cyclically shifted; or
  • the arrangement order of the eREG numbers corresponding to the resource elements corresponding to the sub-carriers sequentially arranged in the same OFDM symbol in the second mapping rule is the sub-carriers sequentially numbered in the same OFDM symbol in the first mapping rule.
  • the arrangement order of the eREG numbers corresponding to the corresponding resource units is cyclically shifted.
  • control channel transmission method including:
  • the physical resource block pair corresponding to a first number of first resource unit groups, where the physical resource block pair includes N OFDM symbols, the N Each of the OFDM symbols in the OFDM symbol corresponds to a mapping rule from the first resource unit group to a resource unit in the physical resource block pair, where the N is an integer greater than or equal to 1;
  • N mapping rules corresponding to the N OFDM symbols include at least two different rules.
  • the resource element group number of the first resource unit group corresponding to the resource unit corresponding to the first available subcarrier in each OFDM symbol is different.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the first resource unit group includes a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair; or - surgery, $ , , At least one of the resource elements other than the resource unit mapped by the number and/or other control channel.
  • the method further includes: numbering a resource element set corresponding to an eCCE included in the first resource unit group;
  • the rule includes a first mapping rule, where the first mapping rule includes: the resource element set numbers corresponding to the eCCEs corresponding to the resource units corresponding to the subcarriers sequentially numbered in the same OFDM symbol are sequentially arranged and cyclically arranged.
  • the method further includes: numbering an eREG included in the first resource unit group; the mapping rule includes a first mapping rule
  • the first mapping rule includes:
  • the eREG numbers corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the same OFDM symbol are sequentially arranged and arranged in a loop.
  • the method further includes: numbering a resource element set corresponding to an eCCE included in the first resource unit group;
  • the rule includes a first mapping rule, where the first mapping rule includes: the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resources in the frequency domain in the same OFDM symbol a unit, and the resource unit set numbers corresponding to the eCCEs corresponding to the resource units corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol are sequentially arranged and cyclically arranged; and/or
  • the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resource units in the frequency domain in the same OFDM symbol, and the even subcarrier numbers are sequentially arranged in the same OFDM symbol.
  • the corresponding sub-carrier corresponding to the resource unit The resource unit set numbers corresponding to the eCCE are sequentially arranged and arranged in a loop.
  • the method further includes: numbering an eREG included in the first resource unit group; the mapping rule includes a first mapping rule
  • the first mapping rule includes:
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and corresponding to the resource units corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol
  • the eREG numbers are arranged in sequence and cycled 1 J ; and / or
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and the resource units corresponding to the subcarriers in which the even subcarrier numbers are sequentially arranged in the same OFDM symbol correspond to The eREG numbers are arranged in order and arranged in a loop.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the resource unit set number or the eREG number corresponding to the eCCE is arranged in a small to large loop or in a large to small loop.
  • the resource unit set number or the eREG number corresponding to the eCCE is arranged in a small to large loop;
  • the resource unit set number or the eREG number corresponding to the eCCE is arranged in a large to small loop.
  • mapping rule further includes a second mapping rule
  • the order of the resource unit sets corresponding to the eCCEs corresponding to the resource units corresponding to the sub-carriers in the same OFDM symbol in the same OFDM symbol is sequentially numbered by the same OFDM symbol in the first mapping rule.
  • the arrangement order of the resource unit sets corresponding to the eCCE corresponding to the resource unit corresponding to the aligned subcarriers is cyclically shifted; or
  • a resource corresponding to the subcarriers sequentially numbered in the same OFDM symbol in the second mapping rule The order of the eREG numbers corresponding to the source units is obtained by cyclically shifting the order of the eREG numbers corresponding to the resource units corresponding to the subcarriers sequentially numbered in the same OFDM symbol in the first mapping rule.
  • control channel transmission method including:
  • the physical resource block pair Determining at least one physical resource block pair for transmitting a control channel, the physical resource block pair corresponding to a first number of first resource unit groups, the physical resource block pair comprising N the OFDM symbols, according to S mapping rules Mapping the first resource unit group to the resource unit in the physical resource block pair, where the N is an integer greater than or equal to 1, and the S is a positive integer smaller than the N;
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the first resource unit group includes a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair; or f ' surgery t , , f - At least one of the resource elements other than the resource element of the home code and/or other control channel mapping.
  • mapping the first resource unit group to the resource unit in the physical resource block pair according to the S mapping rules includes:
  • the first resource unit group is respectively mapped to the resource unit in the physical resource block pair according to one of the S mapping rules.
  • the method further includes: numbering the S mapping rules; respectively, respectively, according to one of the S mapping rules Mapping rules, respectively mapping the first resource unit group to the physical On the resource unit in the resource block pair, including:
  • One of the S mapping rules maps the first resource unit group to the resource unit in the physical resource block pair.
  • the rule numbers of the S mapping rules are arranged from small to large; or
  • the rule numbers of the S mapping rules are arranged in order from large to small.
  • mapping rule includes at least one of the following rules:
  • the resource units corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource unit group whose number is from small to large;
  • the resource elements corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource element group whose number is large to small.
  • control channel transmission method including:
  • the physical resource block pair Determining at least one physical resource block pair for transmitting a control channel, the physical resource block pair corresponding to a first number of first resource unit groups, the physical resource block pair comprising N the OFDM symbols, according to S mapping rules Mapping the first resource unit group to the resource unit in the physical resource block pair, where the N is an integer greater than or equal to 1, and the S is a positive integer smaller than the N;
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the first resource unit group includes a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair; or at least - other than resource elements other than resource elements mapped by operation, $ , , , , and/or other control channels A resource unit.
  • mapping the first resource unit group to the resource unit in the physical resource block pair according to the S mapping rules includes:
  • the first resource unit group is respectively mapped to the resource unit in the physical resource block pair according to one of the S mapping rules.
  • the method further includes: numbering the S mapping rules; respectively, respectively, according to one of the S mapping rules a mapping rule, respectively, mapping the first resource unit group to the resource unit in the physical resource block pair, including:
  • the first resource unit group is sequentially grouped according to one of the S mapping rules in the order of the rule numbers of the S mapping rules. Mapping to resource units in the pair of physical resource blocks, respectively.
  • the rule numbers of the S mapping rules are arranged from small to large; or
  • the rule numbers of the S mapping rules are arranged in order from large to small.
  • mapping rule includes at least one of the following rules:
  • the resource units corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource unit group whose number is from small to large;
  • the resource elements corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource element group whose number is large to small.
  • a base station including:
  • a determining unit configured to determine at least one physical resource block pair for transmitting a control channel, and Determining, according to the aggregation level of the control channel, a first resource unit group in a physical resource block pair to which the control channel is mapped, where the physical resource block pair corresponds to a first number of first resource unit groups, and the physical resource
  • the block pair includes N of the OFDM symbols, and each of the N OFDM symbols corresponds to a mapping rule from the first resource unit group to a resource unit in the physical resource block pair Wherein N is an integer greater than or equal to 1;
  • mapping unit configured to map the control channel to a resource unit corresponding to the first resource unit group determined by the determining unit according to the mapping rule
  • a sending unit configured to send, on the first resource element group mapped by the mapping unit, control information carried by the control channel.
  • N mapping rules corresponding to the N OFDM symbols include at least two different rules.
  • the resource of the first resource unit group corresponding to the resource unit corresponding to the first available subcarrier in each OFDM symbol The unit group number is different.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the first resource unit group includes a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair; or - surgery, $ , , , , At least one of the resource elements other than the resource elements mapped by the , , and/or other control channels.
  • the method further includes: numbering a resource element set corresponding to an eCCE included in the first resource unit group;
  • the rule includes a first mapping rule, where the first mapping rule includes: the resource element set numbers corresponding to the eCCEs corresponding to the resource units corresponding to the subcarriers sequentially numbered in the same OFDM symbol are sequentially arranged and cyclically arranged.
  • the method further includes: numbering an eREG included in the first resource unit group; the mapping rule includes a first mapping rule
  • the first mapping rule includes: The eREG numbers corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the same OFDM symbol are sequentially arranged and arranged in a loop.
  • the method further includes: numbering a resource element set corresponding to an eCCE included in the first resource unit group;
  • the rule includes a first mapping rule, where the first mapping rule includes: the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resources in the frequency domain in the same OFDM symbol a unit, and the resource unit set numbers corresponding to the eCCEs corresponding to the resource units corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol are sequentially arranged and cyclically arranged; and/or
  • the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resource units in the frequency domain in the same OFDM symbol, and the even subcarrier numbers are sequentially arranged in the same OFDM symbol.
  • the resource unit set numbers corresponding to the eCCEs corresponding to the resource units corresponding to the subcarriers are sequentially arranged and arranged in a loop.
  • the method further includes: numbering an eREG included in the first resource unit group; the mapping rule includes a first mapping rule
  • the first mapping rule includes:
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and corresponding to the resource units corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol
  • the eREG numbers are arranged in sequence and arranged in a loop; and/or
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and the resource units corresponding to the subcarriers in which the even subcarrier numbers are sequentially arranged in the same OFDM symbol correspond to The eREG numbers are arranged in order and arranged in a loop.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the resource unit set number or the eREG number corresponding to the eCCE is arranged in a small to large cycle or in a large to small cycle.
  • the resource unit set number or the eREG number corresponding to the eCCE is arranged in a cycle from large to small.
  • mapping rule further includes a second mapping rule
  • the order of the resource unit sets corresponding to the eCCEs corresponding to the resource units corresponding to the sub-carriers in the same OFDM symbol in the same OFDM symbol is sequentially numbered by the same OFDM symbol in the first mapping rule.
  • the arrangement order of the resource unit sets corresponding to the eCCE corresponding to the resource unit corresponding to the aligned subcarriers is cyclically shifted; or
  • the arrangement order of the eREG numbers corresponding to the resource elements corresponding to the sub-carriers sequentially arranged in the same OFDM symbol in the second mapping rule is the sub-carriers sequentially numbered in the same OFDM symbol in the first mapping rule.
  • the arrangement order of the eREG numbers corresponding to the corresponding resource units is cyclically shifted.
  • a terminal including:
  • a determining unit configured to determine at least one physical resource block pair for transmitting a control channel, where the physical resource block pair corresponds to a first number of first resource element groups, where the physical resource block pair includes N the OFDM symbols, Each of the N OFDM symbols corresponds to a mapping rule from the first resource unit group to a resource unit in the physical resource block pair, where the N is greater than or An integer equal to 1;
  • a receiving unit configured to determine, according to the candidate aggregation level Lk of the control channel, a first resource unit group in a physical resource block pair determined by the determining unit to which the control channel is mapped, and determine, according to the mapping rule, The resource unit corresponding to the first resource unit group, and the resource unit corresponding to the first resource unit group are detected, and the control information carried by the control channel is parsed from the correctly detected first resource unit group; Where k is an integer and L k k candidate aggregation levels.
  • N mapping rules corresponding to the N OFDM symbols include at least two different rules.
  • the resource element group number of the first resource unit group corresponding to the resource unit corresponding to the first available subcarrier in each OFDM symbol is different.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the first resource unit group includes a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair; or - surgery, $ , , At least one of the resource elements other than the resource unit mapped by the number and/or other control channel.
  • the method further includes: numbering a resource element set corresponding to an eCCE included in the first resource unit group;
  • the rule includes a first mapping rule, where the first mapping rule includes: the resource element set numbers corresponding to the eCCEs corresponding to the resource units corresponding to the subcarriers sequentially numbered in the same OFDM symbol are sequentially arranged and cyclically arranged.
  • the method further includes: numbering an eREG included in the first resource unit group; the mapping rule includes a first mapping rule
  • the first mapping rule includes:
  • the eREG numbers corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the same OFDM symbol are sequentially arranged and arranged in a loop.
  • the method further includes: numbering a resource element set corresponding to an eCCE included in the first resource unit group;
  • the rule includes a first mapping rule, where the first mapping rule includes: the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resources in the frequency domain in the same OFDM symbol a unit, and the resource unit set numbers corresponding to the eCCEs corresponding to the resource units corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol are sequentially arranged and cyclically arranged; and/or
  • the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resource units in the frequency domain in the same OFDM symbol, and the even subcarrier numbers are sequentially arranged in the same OFDM symbol.
  • the corresponding sub-carrier corresponding to the resource unit The resource unit set numbers corresponding to the eCCE are sequentially arranged and arranged in a loop.
  • the method further includes: numbering an eREG included in the first resource unit group; the mapping rule includes a first mapping rule
  • the first mapping rule includes:
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and corresponding to the resource units corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol
  • the eREG numbers are arranged in sequence and cycled 1 J ; and / or
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and the resource units corresponding to the subcarriers in which the even subcarrier numbers are sequentially arranged in the same OFDM symbol correspond to The eREG numbers are arranged in order and arranged in a loop.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the resource unit set number or the eREG number corresponding to the eCCE is arranged in a small to large loop or in a large to small loop.
  • any possible implementation manner further provide an implementation manner, if the resource unit set number or the eREG number corresponding to the eCCE has been maximized, the resource unit set number corresponding to the eCCE Or the eREG numbers are arranged in a small to large loop; or
  • the resource unit set number or the eREG number corresponding to the eCCE is arranged in a large to small loop.
  • mapping rule further includes a second mapping rule
  • the order of the resource unit sets corresponding to the eCCEs corresponding to the resource units corresponding to the sub-carriers in the same OFDM symbol in the same OFDM symbol is sequentially numbered by the same OFDM symbol in the first mapping rule.
  • the arrangement order of the resource unit sets corresponding to the eCCE corresponding to the resource unit corresponding to the aligned subcarriers is cyclically shifted; or
  • the arrangement order of the eREG numbers corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the same OFDM symbol in the second mapping rule is the same OFDM in the first mapping rule.
  • the arrangement order of the eREG numbers corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the symbol is cyclically shifted.
  • a base station including:
  • a determining unit configured to determine at least one physical resource block pair for transmitting a control channel, and determining, according to an aggregation level of the control channel, a first resource unit group in a physical resource block pair to which the control channel is mapped,
  • the physical resource block pair corresponds to a first number of first resource unit groups, the physical resource block pair includes N the OFDM symbols, and the first resource unit group is mapped to the physical resource block according to S mapping rules.
  • N is an integer greater than or equal to 1
  • S is a positive integer smaller than the N;
  • mapping unit configured to map the control channel to a resource unit corresponding to the first resource unit group determined by the determining unit according to the mapping rule
  • a sending unit configured to send, on the first resource element group mapped by the mapping unit, control information carried by the control channel.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the first resource unit group includes a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair; or i ⁇ ' surgery it , , At least one of the resource elements other than the resource elements mapped by , , , and/or other control channels.
  • mapping the first resource unit group to the resource unit in the physical resource block pair according to the S mapping rules includes:
  • the first resource unit group is respectively mapped to the resource unit in the physical resource block pair according to one of the S mapping rules.
  • the base station further includes: numbering the S mapping rules; respectively, respectively, according to one of the S mapping rules a mapping rule, respectively, mapping the first resource unit group to the resource unit in the physical resource block pair, including: Determining, in the same OFDM symbol, in the order of the subcarrier numbers of the subcarriers and in the order of the symbol numbers of the OFDM symbols, according to the order of the rule numbers of the S mapping rules, respectively.
  • One of the S mapping rules maps the first resource unit group to the resource unit in the physical resource block pair.
  • the rule numbers of the S mapping rules are arranged from small to large; or
  • the rule numbers of the S mapping rules are arranged in order from large to small.
  • mapping rule includes at least one of the following rules:
  • the resource units corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource unit group whose number is from small to large;
  • the resource elements corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource element group whose number is large to small.
  • a terminal including:
  • a determining unit configured to determine at least one physical resource block pair for transmitting a control channel, where the physical resource block pair corresponds to a first number of first resource element groups, where the physical resource block pair includes N the OFDM symbols, Mapping the first resource unit group to the resource unit in the physical resource block pair according to the S mapping rules, where the N is an integer greater than or equal to 1, and the S is smaller than the positive of the N Integer
  • a receiving unit configured to determine, according to the candidate aggregation level Lk of the control channel, a first resource unit group in a physical resource block pair determined by the determining unit to which the control channel is mapped, and determine, according to the mapping rule, The resource unit corresponding to the first resource unit group, and the resource unit corresponding to the first resource unit group are detected, and the control information carried by the control channel is parsed from the correctly detected first resource unit group; Where k is an integer and Lk is any one of k candidate aggregation levels.
  • the foregoing aspect and any possible implementation manner further provide an implementation manner, where the first resource unit group includes a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair; or At least one of the resource elements other than the resource elements mapped by the control, $ , , , , and/or other control channels.
  • mapping the first resource unit group to the resource unit in the physical resource block pair according to the S mapping rules includes:
  • the first resource unit group is respectively mapped to the resource unit in the physical resource block pair according to one of the S mapping rules.
  • the method further includes: numbering the S mapping rules; respectively, respectively, according to one of the S mapping rules a mapping rule, respectively, mapping the first resource unit group to the resource unit in the physical resource block pair, including:
  • One of the S mapping rules maps the first resource unit group to the resource unit in the physical resource block pair.
  • the rule numbers of the S mapping rules are arranged from small to large; or
  • the rule numbers of the S mapping rules are arranged in order from large to small.
  • mapping rule includes at least one of the following rules:
  • the resource units corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource unit group whose number is from small to large;
  • the resource elements corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource element group whose number is large to small.
  • the embodiment of the present application can implement, in a physical resource block pair, transmit or receive some control information, such as ePDCCH bearer control information, by a resource unit group, such as a resource unit set or an eREG corresponding to an eCCE.
  • a resource unit group such as a resource unit set or an eREG corresponding to an eCCE.
  • FIG. 1 is a schematic flowchart of a method for transmitting a control channel according to an embodiment of the present disclosure
  • FIG. 2 to FIG. 10 are schematic diagrams showing positions of a first resource element group of a control channel mapping in a physical resource block pair in the embodiment corresponding to FIG.
  • FIG. 11 is a schematic flowchart of a method for transmitting a control channel according to another embodiment of the present disclosure
  • FIG. 12 is a schematic flowchart of a method for transmitting a control channel according to another embodiment of the present disclosure
  • FIGS. 13-15 are embodiments corresponding to FIG. A schematic diagram of a location of a first resource element group of a medium control channel map in a pair of physical resource blocks;
  • FIG. 16 is a schematic flowchart of a control channel transmission method according to another embodiment of the present disclosure
  • FIG. 17 is a schematic structural diagram of a base station according to another embodiment of the present application.
  • FIG. 18 is a schematic structural diagram of a terminal according to another embodiment of the present application.
  • FIG. 19 is a schematic structural diagram of a base station according to another embodiment of the present application.
  • FIG. 20 is a schematic structural diagram of a terminal according to another embodiment of the present application.
  • the technical solutions in the embodiments of the present application are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present application.
  • the embodiments are part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present application without departing from the inventive scope are the scope of the present invention.
  • the technical solution of the present invention can be applied to a wireless communication system such as an LTE system or an LTE-A system.
  • the terminal may be an LTE system or a user equipment (UE) in the LTE-A system;
  • the base station may be an eNB in an LTE system or an LTE-A system.
  • the term "and / or" in this article is merely an association describing the associated object, indicating There may be three relationships, for example, A and/or B, which may indicate: A exists separately, A and B exist simultaneously, and B exists separately.
  • the character '7' in this article generally means that the contextual object is an "or" relationship.
  • the downlink multiple access method usually uses orthogonal frequency division multiplexing multiple access.
  • Orthogonal Frequency Division Multiple Access (OFDMA) method The downlink resources of the system are divided into Orthogonal Frequency Division Multiple (OFDM) symbols in terms of time, and are divided into subcarriers in terms of frequency.
  • OFDM Orthogonal Frequency Division Multiple
  • a normal downlink subframe contains two slots, each slot has 7 or 6 OFDM symbols, one A normal downlink subframe contains a total of 14 OFDM symbols or 12 OFDM symbols.
  • the LTE Release 8/9/10 standard also defines the size of a Resource Block (RB).
  • RB Resource Block
  • One resource block contains 12 subcarriers in the frequency domain and half a subframe duration (ie, one time slot) in the time domain. That is, it contains 7 or 6 OFDM symbols.
  • a pair of resource blocks of two slots are referred to as resource block pairs (RB pairs, RB pairs).
  • the resource block pair used by the physical resource is also called a physical resource block pair (Physical RB pair, PRB pair), and may also be referred to as a unit physical resource block. Therefore, the subsequent descriptions refer to PRB pairs, whether they are PRB, PRB pair or physical resource block or physical resource block pair.
  • control channels The various data carried on the subframe are organized by mapping various physical channels on the physical time-frequency resources of the subframe.
  • the various physical channels can be roughly divided into two categories: control channels and traffic channels.
  • control data generally referred to as control information
  • traffic data the data carried by the traffic channel
  • control data generally referred to as control information
  • traffic data traffic data
  • the fundamental purpose of transmitting a subframe is to transmit service data, and the role of the control channel is to assist in the transmission of service data.
  • Control Channel PDCCH
  • PDCCH Physical Downlink Control Channel
  • CCEs Control Channel Elements
  • one PDCCH can be mapped to 1, 2, 4 or 8 CCEs, that is, composed of 1, 2, 4 or 8 CCEs, corresponding to aggregation levels 1, 2, 4, 8.
  • Multi-user Multiple Input Multiple Output MIMO and Association
  • CoMP Coordinated Multiple Points
  • a Physical Downlink Control Channel based on precoding, that is, an Enhanced Physical Downlink Control Channel (Enhanced Physical Downlink Control Channel).
  • ePDCCH Enhanced Physical Downlink Control Channel
  • the ePDCCH may be demodulated based on a UE-specific reference signal, a Demodulation Reference Signal (DMRS).
  • DMRS Demodulation Reference Signal
  • Each ePDCCH can still be mapped to k CCE-like logical units (defined herein as eCCEs), and the UE is required to perform blind detection on the terminal side.
  • the ePDCCH with an aggregation level of L can be mapped to L eCCEs, that is, composed of L eCCEs.
  • L eCCEs that is, composed of L eCCEs.
  • An eCCE consists of one or several eREGs.
  • FIG. 1 is a schematic flowchart of a control channel transmission method according to an embodiment of the present application, as shown in FIG. 1 .
  • Each of the OFDM symbols corresponds to a mapping rule from the first resource unit group to a resource unit in the physical resource block pair, where the N is an integer greater than or equal to 1. .
  • mapping rule maps, according to the mapping rule, the control channel to a resource element corresponding to the determined first resource unit group.
  • the control information carried by the control channel is sent on the first resource element group of the mapping.
  • the execution entity of 101 to 104 may be a base station.
  • the control channel may be an Enhanced Physical Downlink Control Channel (ePDCCH).
  • ePDCCH Enhanced Physical Downlink Control Channel
  • the N mapping rules corresponding to the N OFDM symbols may include at least two different rules.
  • the at least two different rules include at least a first rule and a second rule, and the second rule is a rule after the first rule is cyclically shifted.
  • the resource unit group number of the resource unit group indicated by the first rule is mapped to 12 resource units included in each OFDM symbol as follows Shown: First rule: 1, 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4; Second rule: 2, 3, 4, 5, 6, 7, 8, 1 2, 3, 4, 5.
  • the resource element group numbers of the first resource unit group corresponding to the resource unit corresponding to the first available subcarrier in each OFDM symbol are different.
  • the first resource unit group may include, but is not limited to, a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair.
  • the first resource unit group includes a resource unit of the resource unit in the physical resource block pair except the reference signal and/or other control channel mapping resource unit. At least one resource unit of other resource units.
  • the reference signal may include, but is not limited to, a Common Reference Signal (CRS), a DMRS, a Channel Status Information Reference Signal (CSI-RS), and a Positioning Reference Signal (PRS). At least one of them.
  • CRS Common Reference Signal
  • DMRS Downlink Reference Signal
  • CSI-RS Channel Status Information Reference Signal
  • PRS Positioning Reference Signal
  • the resource unit set corresponding to the eCCE included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include the first Mapping rules, where the first mapping rules include:
  • the resource element set numbers corresponding to the eCCEs corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the same OFDM symbol are sequentially arranged and arranged in a loop.
  • the eREGs included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include a first mapping rule, where A mapping rule includes:
  • the eREG numbers corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the same OFDM symbol are sequentially arranged and arranged in a loop.
  • the resource unit set corresponding to the eCCE included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include the first Mapping rules, where the first mapping rules include:
  • a resource list corresponding to an eCCE with the same resource unit set number in the first resource unit group The element set corresponds to two consecutive resource elements in the frequency domain in the same OFDM symbol, and the resource unit set number corresponding to the eCCE corresponding to the resource unit corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol is compliant.
  • Sub-arranged and cyclically arranged to support transmit diversity for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC transmit diversity and Frequency Domain Switched Transmit Diversity (FSTD); and / or
  • SFBC Space-Frequency Block Code
  • FSTD Frequency Domain Switched Transmit Diversity
  • the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resource units in the frequency domain in the same OFDM symbol, and the even subcarrier numbers are sequentially arranged in the same OFDM symbol.
  • the resource unit set numbers corresponding to the eCCEs corresponding to the resource elements corresponding to the subcarriers are sequentially arranged and cyclically arranged, thereby being capable of supporting transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC.
  • SFBC Space-Frequency Block Code
  • SFTD Frequency Switched Transmit Diversity
  • the eREGs included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include a first mapping rule, where A mapping rule includes:
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and corresponding to the resource units corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol
  • the eREG numbers are sequentially arranged and cyclically arranged to support transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC transmit diversity and Frequency Switched Transmit Diversity (FSTD). ) ⁇ group; and / or
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and the resource units corresponding to the subcarriers in which the even subcarrier numbers are sequentially arranged in the same OFDM symbol correspond to
  • the eREG numbers are sequentially arranged and cyclically configured to support transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC transmit diversity and Frequency Switched Transmit Diversity (FSTD). ) ⁇ group.
  • SFBC Space-Frequency Block Code
  • FSTD Frequency Switched Transmit Diversity
  • the resource unit set number or the eREG number corresponding to the eCCE is arranged in a small to large cycle or in a large to small cycle.
  • the cyclical arrangement may include: if the resource unit set number or the eREG number corresponding to the eCCE has been ranked to the maximum, the resource unit set number or the eREG number corresponding to the eCCE is cycled from small to large. arrangement.
  • the cyclical arrangement may further include: if the resource unit set number or the eREG number corresponding to the eCCE has been minimized, the resource unit set number or the eREG number corresponding to the eCCE is as large as Small loops are arranged.
  • the mapping rule may further include a second mapping rule.
  • the order of the resource unit sets corresponding to the eCCEs corresponding to the resource units corresponding to the sub-carriers in the same OFDM symbol in the same OFDM symbol is sequentially numbered by the same OFDM symbol in the first mapping rule.
  • the arrangement order of the resource unit sets corresponding to the eCCE corresponding to the resource unit corresponding to the aligned subcarriers is cyclically shifted; or
  • the arrangement order of the eREG numbers corresponding to the resource elements corresponding to the sub-carriers sequentially arranged in the same OFDM symbol in the second mapping rule is the sub-carriers sequentially numbered in the same OFDM symbol in the first mapping rule.
  • the arrangement order of the eREG numbers corresponding to the corresponding resource units is cyclically shifted.
  • the following will be a physical resource block pair (including a total of 168 resource elements), including 12 subcarriers in the frequency domain, and 14 OFDM symbols in the time domain as an example.
  • the physical resource block pair is divided into 14/8+1 packets, each of the packets includes 8 of the OFDM symbols, and the last packet contains less than 8 of the OFDM symbols.
  • Each of the eight OFDM symbols describes a mapping rule, that is, a total of eight mapping rules. Assuming that the number of resource unit groups in the physical resource block pair is 8, then the resource unit group number of the resource unit group indicated by the eight mapping rules is mapped to 12 resource units included in each OFDM symbol in one packet as follows: Shown as follows:
  • FIG. 2 shows a pair of physical resource blocks consisting of 168 resource elements. Each small square represents a resource unit, and the resource unit group number numbered 8 resource unit groups is used to represent each resource unit.
  • the location of the resource unit included in each of the 8 resource unit groups may be determined by using the foregoing method, as shown in FIG. 3, where the horizontal line
  • the shading indicates the resource unit of the DMRS mapping.
  • Figure 3 shows a physical resource block pair consisting of 168 resource elements (where the mapping does not consider 24 resource elements containing DMRS mapping), each small square represents a resource unit, where the number is 8
  • the resource unit group number of the resource unit group is used to indicate the resource unit group to which each resource unit belongs.
  • the vertical direction represents the frequency domain resource
  • the horizontal direction represents the time domain resource.
  • the resource unit group and the corresponding number that have been mapped in the location are deducted, as shown in FIG. 4, wherein the shaded hatching indicates the resource unit of the PDCCH mapping, the blank indicates the resource unit of the CRS mapping, and the horizontal line hatching indicates the resource of the DMRS mapping. unit.
  • the shaded hatching indicates the resource unit of the PDCCH mapping
  • the blank indicates the resource unit of the CRS mapping
  • the horizontal line hatching indicates the resource of the DMRS mapping. unit.
  • Figure 4 shows a physical resource block pair consisting of 168 resource elements (where the mapping does not consider 24 resource elements containing DMRS mapping), each small square represents a resource unit, where the number is 8
  • the resource unit group number of the resource unit group is used to indicate the resource unit group to which each resource unit belongs.
  • the vertical direction represents the frequency domain resource, and the horizontal direction represents the time domain resource.
  • a physical resource block pair (including a total of 168 resource elements), 12 subcarriers in the frequency domain, and 14 OFDM symbols in the time domain are taken as an example.
  • the physical resource block pair is divided into 14/4+1 packets, each of the packets includes 4 of the OFDM symbols, and the last packet contains less than 4 of the OFDM symbols.
  • Each of the four OFDM symbols described in the OFDM symbol corresponds to one mapping rule, that is, there are four mapping rules. Fake Let the number of resource unit groups in the physical resource block pair be 4, then the resource unit group number of the resource unit group indicated by the four mapping rules is mapped to 12 resource units included in each OFDM symbol in one packet as follows Shown as follows:
  • FIG. 5 shows a physical resource block pair consisting of 168 resource elements. Each small square represents a resource unit, and the resource unit group number numbered 4 resource unit groups is used to represent each resource unit.
  • the location of the resource unit included in each of the four resource unit groups may be determined by using the foregoing method, as shown in FIG.
  • the shading indicates the resource unit of the DMRS mapping.
  • Figure 6 shows a physical resource block pair consisting of 168 resource elements (where the mapping does not consider 24 resource elements containing DMRS mapping), each small square represents a resource unit, where the number is 4
  • the resource unit group number of the resource unit group is used to indicate the resource unit group to which each resource unit belongs.
  • the vertical direction represents the frequency domain resource
  • the horizontal direction represents the time domain resource.
  • the method may be used to determine four resource unit groups.
  • the location of the resource unit included in each resource unit group is as shown in FIG. 7, wherein the shaded hatching indicates the resource unit of the PDCCH mapping, the blank indicates the resource unit of the CRS mapping, and the horizontal line hatching indicates the resource unit of the DMRS mapping.
  • Figure 7 shows a physical resource block pair consisting of 168 resource elements. Each small square represents a resource unit, and the resource unit group number numbered 4 resource unit groups is used to represent each resource unit.
  • the resource unit group to which it belongs the vertical direction represents the frequency domain resource, and the horizontal direction represents the time domain resource.
  • a physical resource block pair (including a total of 168 resource elements), 12 subcarriers in the frequency domain, and 14 OFDM symbols in the time domain are taken as an example.
  • the physical resource block pair is divided into 14/2 packets, each of the packets includes 2 of the OFDM symbols, and each of the 2 OFDM symbols corresponds to one Mapping rules, that is, there are 2 mapping rules. Assuming that the number of resource element groups in the pair of physical resource blocks is 4, then the resource unit group numbers of the resource unit groups indicated by the two mapping rules are mapped to 12 resource elements included in each OFDM symbol in one packet as follows: Shown as follows:
  • Figure 8 shows a physical resource block pair consisting of 168 resource elements. Each small square represents a resource unit, and the resource unit group number numbered 4 resource unit groups is used to represent each resource unit.
  • the location of the resource unit included in each of the four resource unit groups may be determined by using the foregoing method, as shown in FIG.
  • the shading indicates the resource unit of the DMRS mapping.
  • Figure 9 shows a physical resource block pair consisting of 168 resource elements (where the mapping does not consider 24 resource elements containing DMRS mapping), each small square represents a resource unit, where the number is 4
  • the resource unit group number of the resource unit group is used to indicate the resource unit group to which each resource unit belongs.
  • the vertical direction represents the frequency domain resource
  • the horizontal direction represents the time domain resource.
  • the method may be used to determine four resource unit groups.
  • the location of the resource unit included in each resource unit group is as shown in FIG. 10, wherein the shaded hatching indicates the resource unit of the PDCCH mapping, the blank indicates the resource unit of the CRS mapping, and the horizontal line hatching indicates the resource unit of the DMRS mapping.
  • Figure 10 shows a physical resource block pair consisting of 168 resource elements, each small square representing a resource unit, wherein the resource unit group numbered 4 resource unit groups The number is used to indicate the resource unit group to which each resource unit belongs.
  • the vertical direction indicates the frequency domain resource
  • the horizontal direction indicates the time domain resource.
  • the technical solution of the embodiment has the following advantages: as many resource unit groups as possible can be distributed on each OFDM symbol;
  • each resource unit group includes both the resource unit in the middle of the physical resource block pair and the resource unit at the edge of the physical resource block;
  • the size of each resource unit group is approximately equal.
  • a resource unit group such as a resource unit set or an eREG corresponding to the eCCE
  • a control information such as an ePDCCH bearer
  • FIG. 11 is a schematic flowchart of a control channel transmission method according to another embodiment of the present application, as shown in FIG.
  • the physical resource block pair corresponds to a first number of first resource unit groups, and the physical resource block pair includes N the OFDM symbols, the N Each of the OFDM symbols corresponds to a mapping rule from the first resource unit group to a resource unit in the physical resource block pair, wherein the N is an integer greater than or equal to 1. .
  • the resource unit corresponding to the first resource unit group is detected, and the control information carried by the control channel is parsed from the first resource element group that is correctly detected.
  • the resource unit corresponding to the first resource unit group is detected, and when the detection is correct, the control information carried by the control channel is parsed from the correctly detected first resource unit group, and the detection is incorrect.
  • the resource unit corresponding to the candidate aggregation level other than the Lk among the k candidate aggregation levels is continuously detected.
  • execution body of 1101 ⁇ 1104 can be a terminal.
  • the control channel may be an Enhanced Physical Downlink Control Channel (ePDCCH).
  • ePDCCH Enhanced Physical Downlink Control Channel
  • the N mapping rules corresponding to the N OFDM symbols may include at least two different rules.
  • the at least two different rules include at least a first rule and a second rule, and the second rule is a rule after the first rule is cyclically shifted.
  • the resource unit group number of the resource unit group indicated by the first rule is mapped to the 12 resource units included in each OFDM symbol as follows: First rule: 1, 2, 3, 4, 5, 6, 7 8, 8, 2, 3, 4; Second rule: 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5.
  • the resource element group numbers of the first resource unit group corresponding to the resource unit corresponding to the first available subcarrier in each OFDM symbol are different.
  • the first resource unit group may include, but is not limited to, a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair.
  • the first resource unit group includes a resource unit of the resource unit in the physical resource block pair except the reference signal and/or other control channel mapping resource unit. At least one resource unit of other resource units.
  • the reference signal may include, but is not limited to, a Common Reference Signal (CRS), a DMRS, a Channel Status Information Reference Signal (CSI-RS), and a Positioning Reference Signal (PRS). At least one of them.
  • CRS Common Reference Signal
  • DMRS Downlink Reference Signal
  • CSI-RS Channel Status Information Reference Signal
  • PRS Positioning Reference Signal
  • the resource unit set corresponding to the eCCE included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include the first Mapping rules, where the first mapping rules include:
  • the resource element set numbers corresponding to the eCCEs corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the same OFDM symbol are sequentially arranged and arranged in a loop.
  • the eREGs included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include a first mapping rule, where A mapping rule includes:
  • the eREG numbers are arranged in order and arranged in a loop.
  • the resource unit set corresponding to the eCCE included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include the first Mapping rules, where the first mapping rules include:
  • the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resource units in the frequency domain in the same OFDM symbol, and the odd subcarrier numbers are sequentially arranged in the same OFDM symbol.
  • the resource unit set numbers corresponding to the eCCEs corresponding to the resource elements corresponding to the subcarriers are sequentially arranged and cyclically arranged, thereby being capable of supporting transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC. a combination of transmit diversity and Frequency Switched Transmit Diversity (FSTD); and/or
  • the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resource units in the frequency domain in the same OFDM symbol, and the even subcarrier numbers are sequentially arranged in the same OFDM symbol.
  • the resource unit set numbers corresponding to the eCCEs corresponding to the resource elements corresponding to the subcarriers are sequentially arranged and cyclically arranged, thereby being capable of supporting transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC.
  • SFBC Space-Frequency Block Code
  • SFTD Frequency Switched Transmit Diversity
  • the eREGs included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include a first mapping rule, where A mapping rule includes:
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and corresponding to the resource units corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol
  • the eREG numbers are sequentially arranged and cyclically arranged to support transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC transmit diversity and Frequency Switched Transmit Diversity (FSTD). ) ⁇ group; and / or
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and the resource units corresponding to the subcarriers in which the even subcarrier numbers are sequentially arranged in the same OFDM symbol correspond to eREG numbers are arranged in sequence and looped ⁇ 'J , which can support transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC transmit diversity and Frequency Domain Switched Transmit Diversity (FSTD) ⁇ groups.
  • SFBC Space-Frequency Block Code
  • FSTD Frequency Domain Switched Transmit Diversity
  • the resource unit set number or the eREG number corresponding to the eCCE is arranged in a cycle from small to large or in a cycle from large to small.
  • the cyclical arrangement may include: if the resource unit set number or the eREG number corresponding to the eCCE has been ranked to the maximum, the resource unit set number or the eREG number corresponding to the eCCE is cycled from small to large. arrangement.
  • the cyclical arrangement may further include: if the resource unit set number or the eREG number corresponding to the eCCE has been minimized, the resource unit set number or the eREG number corresponding to the eCCE is as large as Small loops are arranged.
  • the mapping rule may further include a second mapping rule.
  • the order of the resource unit sets corresponding to the eCCEs corresponding to the resource units corresponding to the sub-carriers in the same OFDM symbol in the same OFDM symbol is sequentially numbered by the same OFDM symbol in the first mapping rule.
  • the arrangement order of the resource unit sets corresponding to the eCCE corresponding to the resource unit corresponding to the aligned subcarriers is cyclically shifted; or
  • the arrangement order of the eREG numbers corresponding to the resource elements corresponding to the sub-carriers sequentially arranged in the same OFDM symbol in the second mapping rule is the sub-carriers sequentially numbered in the same OFDM symbol in the first mapping rule.
  • the arrangement order of the eREG numbers corresponding to the corresponding resource units is cyclically shifted.
  • the technical solution of the terminal provided in this embodiment is corresponding to the technical solution executed by the base station provided in the embodiment corresponding to FIG. 1.
  • the technical solution of the terminal provided in this embodiment is corresponding to the technical solution executed by the base station provided in the embodiment corresponding to FIG. 1.
  • control information of some control channels such as an ePDCCH
  • a resource unit group or an eREG corresponding to a resource unit group, such as an eCCE in a physical resource block pair.
  • FIG. 12 is a schematic flowchart of a control channel transmission method according to another embodiment of the present application, as shown in FIG.
  • execution entity of 1201 ⁇ 1204 may be a base station.
  • the control channel may be an Enhanced Physical Downlink Control Channel (ePDCCH).
  • ePDCCH Enhanced Physical Downlink Control Channel
  • the first resource unit group may include, but is not limited to, a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair.
  • the first resource unit group includes a resource unit of the resource unit in the physical resource block pair except the reference signal and/or other control channel mapping resource unit. At least one resource unit of other resource units.
  • the reference signal may include, but is not limited to, a Common Reference Signal (CRS), a DMRS, a Channel Status Information Reference Signal (CSI-RS), and a Positioning Reference Signal (PRS). At least one of them.
  • CRS Common Reference Signal
  • DMRS Downlink Reference Signal
  • CSI-RS Channel Status Information Reference Signal
  • PRS Positioning Reference Signal
  • the first resource unit group is respectively mapped to the physical resource block pair according to one mapping rule of the S mapping rules.
  • the S mapping rules may be further numbered.
  • the first resource unit groups are sequentially followed by the S
  • the order of the rule numbers of the mapping rules respectively maps the first resource unit group to the resource units in the physical resource block pair according to one of the S mapping rules.
  • SFBC Space-Frequency Block Code
  • FSTD Frequency Switched Transmit Diversity
  • the order of the rule numbers of the S mapping rules may be that the rule numbers of the S mapping rules are arranged in a small to large manner; or the rule numbers of the S mapping rules may be arranged in a large to small order. This embodiment does not limit this.
  • the mapping rule may include, but is not limited to, at least one of the following rules:
  • the resource units corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource unit group whose number is from small to large;
  • the resource elements corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource element group whose number is large to small.
  • Each of the OFDM symbols included in each physical resource block is a packet in which two mapping rules are cyclically and continuously mapped into each of the OFDM symbols. Assuming that the number of resource unit groups in the physical resource block is 4, the resource unit group numbers of the resource unit groups indicated by the two mapping rules are continuously mapped to the 168 resource units included in the physical resource block as follows:
  • FIG. 13 shows a physical resource block composed of 168 resource units, each small square represents a resource unit, and the resource unit group number numbered 4 resource unit groups is used to indicate that each resource unit belongs to The resource unit group, the vertical direction represents the frequency domain resource, and the horizontal direction represents the time domain resource.
  • each of the four resource unit groups may be determined, as shown in FIG. 14, wherein the horizontal line hatching indicates the resource unit of the DMRS mapping.
  • Figure 14 shows a physical resource block pair consisting of 168 resource elements (where the mapping includes 24 resource elements containing DMRS mapping), each small square represents a resource unit, where the number is 4
  • the resource unit group number of the resource unit group is used to indicate the resource unit group to which each resource unit belongs.
  • the vertical direction represents the frequency domain resource
  • the horizontal direction represents the time domain resource.
  • the method may be used to determine four resource unit groups.
  • the location of the resource unit included in each resource unit group is as shown in FIG. 15, wherein the shaded hatching indicates the resource unit of the PDCCH mapping, the blank indicates the resource unit of the CRS mapping, and the horizontal line hatching indicates the resource unit of the DMRS mapping.
  • Figure 15 shows a physical resource block pair consisting of 168 resource elements. Each small square represents a resource unit, and the resource unit group number numbered 4 resource unit groups is used to represent each resource unit.
  • the resource unit group to which it belongs, the vertical direction represents the frequency domain resource, and the horizontal direction represents the time domain resource.
  • the technical solution of this embodiment has the following advantages: as many resource unit groups as possible can be distributed on each OFDM symbol;
  • each resource unit group includes both the resource unit in the middle of the physical resource block pair and the resource unit at the edge of the physical resource block;
  • the size of each resource unit group is approximately equal.
  • a resource unit group such as a resource unit set or an eREG corresponding to the eCCE
  • a control information such as an ePDCCH bearer
  • FIG. 16 is a schematic flowchart of a control channel transmission method according to another embodiment of the present application, as shown in FIG. 16.
  • 1601 Determine at least one physical resource block pair for transmitting a control channel, where the physical resource block pair corresponds to a first number of first resource unit groups, and the physical resource block pair includes N the OFDM symbols, according to S
  • the mapping rule maps the first resource unit group to the resource unit in the physical resource block pair, where the N is an integer greater than or equal to 1, and the S is a positive integer smaller than the N.
  • 1602. Determine, according to the candidate aggregation level Lk of the control channel, a first resource unit group in a physical resource block pair to which the control channel is mapped; where k is an integer, and Lk is any one of k candidate aggregation levels. .
  • the resource unit corresponding to the first resource unit group is detected, and the control information carried by the control channel is parsed from the first resource element group that is correctly detected.
  • the resource unit corresponding to the first resource unit group is detected, and when the detection is correct, the control information carried by the control channel is parsed from the correctly detected first resource unit group, and the detection is incorrect.
  • the resource unit corresponding to the candidate aggregation level other than the Lk among the k candidate aggregation levels is continuously detected.
  • execution body of 1601 ⁇ 1604 can be a terminal.
  • the control channel may be an Enhanced Physical Downlink Control Channel (ePDCCH).
  • ePDCCH Enhanced Physical Downlink Control Channel
  • the first resource unit group may include, but is not limited to, a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair.
  • the first resource unit group includes a resource unit of the resource unit in the physical resource block pair except the reference signal and/or other control channel mapping resource unit. At least one resource unit of other resource units.
  • the reference signal may include, but is not limited to, a Common Reference Signal (CRS), a DMRS, a Channel Status Information Reference Signal (CSI-RS), and a Positioning Reference Signal (PRS). At least one of them.
  • CRS Common Reference Signal
  • DMRS Downlink Reference Signal
  • CSI-RS Channel Status Information Reference Signal
  • PRS Positioning Reference Signal
  • the first resource unit group is respectively mapped to the physical resource block pair according to one mapping rule of the S mapping rules.
  • the S mapping rules may be further numbered.
  • the first resource unit groups are sequentially followed by the S
  • the order of the rule numbers of the mapping rules respectively maps the first resource unit group to the resource units in the physical resource block pair according to one of the S mapping rules.
  • SFBC Space-Frequency Block Code
  • FSTD Frequency Switched Transmit Diversity
  • the order of the rule numbers of the S mapping rules may be that the rule numbers of the S mapping rules are arranged in a small to large manner; or the rule numbers of the S mapping rules may be arranged in a large to small order. This embodiment does not limit this.
  • the mapping rule may include, but is not limited to, at least one of the following rules:
  • the resource units corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource unit group whose number is from small to large;
  • the resource elements corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource element group whose number is large to small.
  • the technical solution of the terminal provided in this embodiment is corresponding to the technical solution executed by the base station provided in the embodiment corresponding to FIG. 12.
  • the technical solution of the terminal provided in this embodiment is corresponding to the technical solution executed by the base station provided in the embodiment corresponding to FIG. 12.
  • control information of some control channels such as an ePDCCH
  • a resource unit group or an eREG corresponding to a resource unit group, such as an eCCE in a physical resource block pair.
  • FIG. 17 is a schematic structural diagram of a base station according to another embodiment of the present application, as shown in FIG. 17.
  • Ben The base station of an embodiment may include a determining unit 1701, a mapping unit 1702, and a transmitting unit 1703.
  • the determining unit 1701 is configured to determine at least one physical resource block pair for transmitting a control channel, and determine, according to an aggregation level of the control channel, a first resource unit in a physical resource block pair to which the control channel is mapped.
  • the mapping unit 1702 is configured to, according to the mapping rule, The control channel is mapped to the resource unit corresponding to the first resource unit group determined by the determining unit 1701.
  • the sending unit 1703 is configured to send the control channel on the first resource element group mapped by the mapping unit 1702. The control information carried.
  • the control channel may be an Enhanced Physical Downlink Control Channel (ePDCCH).
  • ePDCCH Enhanced Physical Downlink Control Channel
  • the N mapping rules corresponding to the N OFDM symbols may include at least two different rules.
  • the at least two different rules include at least a first rule and a second rule, and the second rule is a rule after the first rule is cyclically shifted.
  • the resource unit group number of the resource unit group indicated by the first rule is mapped to the 12 resource units included in each OFDM symbol as follows: First rule: 1, 2, 3, 4, 5, 6, 7 8, 8, 2, 3, 4; Second rule: 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5.
  • the resource element group numbers of the first resource unit group corresponding to the resource unit corresponding to the first available subcarrier in each OFDM symbol are different.
  • the first resource unit group may include, but is not limited to, a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair.
  • the first resource unit group includes a resource unit of the resource unit in the physical resource block pair except the reference signal and/or other control channel mapping resource unit. At least one resource unit of other resource units.
  • the reference signal may include but is not limited to a common reference signal (Common Reference Signal, CRS), DMRS, Channel Status Information Reference Signal (CSI-RS), and at least one of Positioning Reference Signal (PRS).
  • CRS Common Reference Signal
  • DMRS Downlink Reference Signal
  • CSI-RS Channel Status Information Reference Signal
  • PRS Positioning Reference Signal
  • the resource unit set corresponding to the eCCE included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include the first Mapping rules, where the first mapping rules include:
  • the resource element set numbers corresponding to the eCCEs corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the same OFDM symbol are sequentially arranged and arranged in a loop.
  • the eREGs included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include a first mapping rule, where A mapping rule includes:
  • the eREG numbers corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the same OFDM symbol are sequentially arranged and arranged in a loop.
  • the resource unit set corresponding to the eCCE included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include the first Mapping rules, where the first mapping rules include:
  • the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resource units in the frequency domain in the same OFDM symbol, and the odd subcarrier numbers are sequentially arranged in the same OFDM symbol.
  • the resource unit set numbers corresponding to the eCCEs corresponding to the resource elements corresponding to the subcarriers are sequentially arranged and cyclically arranged, thereby being capable of supporting transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC. a combination of transmit diversity and Frequency Switched Transmit Diversity (FSTD); and/or
  • the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resource units in the frequency domain in the same OFDM symbol, and the even subcarrier numbers are sequentially arranged in the same OFDM symbol.
  • the resource unit set numbers corresponding to the eCCEs corresponding to the resource elements corresponding to the subcarriers are sequentially arranged and cyclically arranged, thereby being capable of supporting transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC.
  • SFBC Space-Frequency Block Code
  • FSTD Frequency Switched Transmit Diversity
  • the eREGs included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include a first mapping rule, where A mapping rule includes:
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and corresponding to the resource units corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol
  • the eREG numbers are sequentially arranged and cyclically configured to support transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC transmit diversity and Frequency Switched Transmit Diversity (FSTD). ) ⁇ group; and / or
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and the resource units corresponding to the subcarriers in which the even subcarrier numbers are sequentially arranged in the same OFDM symbol correspond to
  • the eREG numbers are sequentially arranged and cyclically configured to support transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC transmit diversity and Frequency Switched Transmit Diversity (FSTD). ) 0 group.
  • SFBC Space-Frequency Block Code
  • FSTD Frequency Switched Transmit Diversity
  • the resource unit set number or the eREG number corresponding to the eCCE is arranged in a cycle from small to large or in a cycle from large to small.
  • the resource unit set number or the eREG number corresponding to the eCCE has been maximized, the resource unit set number or the eREG number corresponding to the eCCE is arranged in a small to large loop.
  • the resource unit set number or the eREG number corresponding to the eCCE has been minimized, the resource unit set number or the eREG number corresponding to the eCCE is arranged in a cycle from large to small.
  • the mapping rule may further include a second mapping rule.
  • the order of the resource unit sets corresponding to the eCCEs corresponding to the resource units corresponding to the sub-carriers in the same OFDM symbol in the same OFDM symbol is sequentially numbered by the same OFDM symbol in the first mapping rule.
  • the arrangement order of the resource unit sets corresponding to the eCCE corresponding to the resource unit corresponding to the aligned subcarriers is cyclically shifted; or
  • a resource corresponding to the subcarriers sequentially numbered in the same OFDM symbol in the second mapping rule The order of the eREG numbers corresponding to the source units is obtained by cyclically shifting the order of the eREG numbers corresponding to the resource units corresponding to the subcarriers sequentially numbered in the same OFDM symbol in the first mapping rule.
  • the base station provided in this embodiment may perform the technical solution executed by the base station provided in the embodiment corresponding to FIG. 1.
  • the base station provided in this embodiment may perform the technical solution executed by the base station provided in the embodiment corresponding to FIG. 1.
  • a resource unit group such as a resource unit set or an eREG corresponding to the eCCE
  • a control information such as an ePDCCH bearer
  • FIG. 18 is a schematic structural diagram of a terminal according to another embodiment of the present disclosure, as shown in FIG. 18.
  • the terminal of this embodiment may include a determining unit 1801 and a receiving unit 1802.
  • the determining unit 1801 is configured to determine at least one physical resource block pair for transmitting a control channel, where the physical resource block pair corresponds to a first number of first resource unit groups, and the physical resource block pair includes N OFDM symbol, each of the N OFDM symbols corresponding to a mapping rule from the first resource unit group to a resource unit in the physical resource block pair, where the N is An integer greater than or equal to 1;
  • a receiving unit 1802 configured to determine, according to the candidate aggregation level Lk of the control channel, the first resource unit group in the physical resource block pair determined by the determining unit 1801 to which the control channel is mapped Determining, according to the mapping rule, a resource unit corresponding to the first resource unit group, and detecting a resource unit corresponding to the first resource unit group, and parsing from the
  • the control channel may be an Enhanced Physical Downlink Control Channel (ePDCCH).
  • ePDCCH Enhanced Physical Downlink Control Channel
  • the N mapping rules corresponding to the N OFDM symbols may include at least two different rules.
  • the at least two different rules include at least a first rule and a second rule, and the second rule is a rule after the first rule is cyclically shifted.
  • the resource unit group number of the resource unit group indicated by the first rule is mapped to the 12 resource units included in each OFDM symbol as follows: First rule: 1, 2, 3, 4, 5, 6, 7 8, 8, 2, 3, 4; Second rule: 2, 3, 4, 5, 6, 7, 8, 1, 2, 3, 4, 5.
  • the resource element group numbers of the first resource unit group corresponding to the resource unit corresponding to the first available subcarrier in each OFDM symbol are different.
  • the first resource unit group may include, but is not limited to, a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair.
  • the first resource unit group includes a resource unit of the resource unit in the physical resource block pair except the reference signal and/or other control channel mapping resource unit. At least one resource unit of other resource units.
  • the reference signal may include, but is not limited to, a Common Reference Signal (CRS), a DMRS, a Channel Status Information Reference Signal (CSI-RS), and a Positioning Reference Signal (PRS). At least one of them.
  • CRS Common Reference Signal
  • DMRS Downlink Reference Signal
  • CSI-RS Channel Status Information Reference Signal
  • PRS Positioning Reference Signal
  • the resource unit set corresponding to the eCCE included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include the first Mapping rules, where the first mapping rules include:
  • the resource element set numbers corresponding to the eCCEs corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the same OFDM symbol are sequentially arranged and arranged in a loop.
  • the eREGs included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include a first mapping rule, where A mapping rule includes:
  • the eREG numbers corresponding to the resource elements corresponding to the subcarriers sequentially arranged in the same OFDM symbol are sequentially arranged and arranged in a loop.
  • the resource unit set corresponding to the eCCE included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include the first Mapping rules, where the first mapping rules include:
  • the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resource units in the frequency domain in the same OFDM symbol, and the odd subcarrier numbers are sequentially arranged in the same OFDM symbol.
  • the corresponding sub-carrier corresponding to the resource unit The resource unit set numbers corresponding to the eCCE are sequentially arranged and cyclically arranged to support transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC transmit diversity and frequency domain switch transmit diversity (Frequency Switched) a combination of Transmit Diversity, FSTD ); and/or
  • the resource element set corresponding to the eCCE with the same resource element set number in the first resource unit group corresponds to two consecutive resource units in the frequency domain in the same OFDM symbol, and the even subcarrier numbers are sequentially arranged in the same OFDM symbol.
  • the resource unit set numbers corresponding to the eCCEs corresponding to the resource elements corresponding to the subcarriers are sequentially arranged and cyclically arranged, thereby being capable of supporting transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC.
  • SFBC Space-Frequency Block Code
  • SFTD Frequency Switched Transmit Diversity
  • the eREGs included in the first resource unit group may be further numbered; correspondingly, the mapping rule may include a first mapping rule, where A mapping rule includes:
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and corresponding to the resource units corresponding to the subcarriers in which the odd subcarrier numbers are sequentially arranged in the same OFDM symbol
  • the eREG numbers are sequentially arranged and cyclically configured to support transmit diversity, for example, Space-Frequency Block Code (SFBC) transmit diversity or SFBC transmit diversity and Frequency Switched Transmit Diversity (FSTD). ) ⁇ group; and / or
  • the eREGs with the same eREG number in the first resource unit group correspond to two consecutive resource units in the frequency domain in the same OFDM symbol, and the resource units corresponding to the subcarriers in which the even subcarrier numbers are sequentially arranged in the same OFDM symbol correspond to
  • the eREG numbers are sequentially arranged and cyclically
  • SFBC Space-Frequency Block Code
  • SFBC SFBC transmit diversity
  • Frequency Switched Transmit Frequency Switched Transmit
  • the resource unit set number or the eREG number corresponding to the eCCE is arranged in a cycle from small to large or in a cycle from large to small.
  • the resource unit set number or the eREG number corresponding to the eCCE has been maximized, the resource unit set number or the eREG number corresponding to the eCCE is Small to large loops.
  • the resource unit set number or the eREG number corresponding to the eCCE has been minimized, the resource unit set number or the eREG number corresponding to the eCCE is arranged in a cycle from large to small.
  • the mapping rule may further include a second mapping rule.
  • the order of the resource unit sets corresponding to the eCCEs corresponding to the resource units corresponding to the sub-carriers in the same OFDM symbol in the same OFDM symbol is sequentially numbered by the same OFDM symbol in the first mapping rule.
  • the arrangement order of the resource unit sets corresponding to the eCCE corresponding to the resource unit corresponding to the aligned subcarriers is cyclically shifted; or
  • the arrangement order of the eREG numbers corresponding to the resource elements corresponding to the sub-carriers sequentially arranged in the same OFDM symbol in the second mapping rule is the sub-carriers sequentially numbered in the same OFDM symbol in the first mapping rule.
  • the arrangement order of the eREG numbers corresponding to the corresponding resource units is cyclically shifted.
  • the terminal provided in this embodiment can perform the technical solution executed by the terminal provided in the embodiment corresponding to FIG. 11.
  • the terminal provided in this embodiment can perform the technical solution executed by the terminal provided in the embodiment corresponding to FIG. 11.
  • Details refer to related content in the embodiment corresponding to FIG. 11, and details are not described herein again.
  • control information of some control channels such as an ePDCCH
  • a resource unit group or an eREG corresponding to a resource unit group, such as an eCCE in a physical resource block pair.
  • FIG. 19 is a schematic structural diagram of a base station according to another embodiment of the present application, as shown in FIG. 19.
  • the base station of this embodiment may include a determining unit 1901, a mapping unit 1902, and a transmitting unit 1903.
  • the determining unit 1901 is configured to determine at least one physical resource block pair for transmitting a control channel, and determine, according to an aggregation level of the control channel, a first resource unit in a physical resource block pair to which the control channel is mapped.
  • mapping unit 1902 configured to: according to the mapping rule The control channel is mapped to the resource unit corresponding to the first resource unit group determined by the determining unit 1901; the sending unit 1903 is configured to be in the mapping unit 1902. Sending control information carried by the control channel on the mapped first resource unit group.
  • the control channel may be an Enhanced Physical Downlink Control Channel (ePDCCH).
  • ePDCCH Enhanced Physical Downlink Control Channel
  • the first resource unit group may include, but is not limited to, a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair.
  • the first resource unit group includes a resource unit of the resource unit in the physical resource block pair except the reference signal and/or other control channel mapping resource unit. At least one resource unit of other resource units.
  • the reference signal may include, but is not limited to, a Common Reference Signal (CRS), a DMRS, a Channel Status Information Reference Signal (CSI-RS), and a Positioning Reference Signal (PRS). At least one of them.
  • CRS Common Reference Signal
  • DMRS Downlink Reference Signal
  • CSI-RS Channel Status Information Reference Signal
  • PRS Positioning Reference Signal
  • the first resource unit group is respectively mapped to the physical resource block pair according to one mapping rule of the S mapping rules.
  • the S mapping rules may be further numbered.
  • the first resource unit groups are sequentially sequentially according to the order of the rule numbers of the S mapping rules.
  • One of the S mapping rules maps the first resource unit group to a resource unit in the physical resource block pair.
  • SFBC Space-Frequency Block Code
  • FSTD Frequency Switched Transmit Diversity
  • the order of the rule numbers of the S mapping rules may be that the rule numbers of the S mapping rules are arranged in a small to large manner; or the rule numbers of the S mapping rules may be arranged in a large to small order.
  • the mapping rule may include, but is not limited to, at least one of the following rules:
  • the resource units corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource unit group whose number is from small to large;
  • the resource elements corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource element group whose number is large to small.
  • the base station provided in this embodiment can perform the technical solution executed by the base station provided in the embodiment corresponding to FIG. 12.
  • the base station provided in this embodiment can perform the technical solution executed by the base station provided in the embodiment corresponding to FIG. 12.
  • a resource unit group such as a resource unit set or an eREG corresponding to the eCCE
  • a control information such as an ePDCCH bearer
  • FIG. 20 is a schematic structural diagram of a terminal according to another embodiment of the present application, as shown in FIG. 20.
  • the terminal of this embodiment may include a determining unit 2001 and a receiving unit 2002.
  • the determining unit 2001 is configured to determine at least one physical resource block pair for transmitting a control channel, where the physical resource block pair corresponds to a first number of first resource unit groups, and the physical resource block pair includes N OFDM symbol, the first resource unit group is mapped to the resource unit in the physical resource block pair according to the S mapping rules, where the N is an integer greater than or equal to 1, and the S is smaller than the a positive integer of N;
  • a receiving unit 2002 configured to determine, according to the candidate aggregation level Lk of the control channel, the first resource unit group in the physical resource block pair determined by the determining unit 2001 to which the control channel is mapped, according to Determining, by the mapping rule, the resource unit corresponding to the first resource unit group, and detecting the resource unit corresponding to the first resource unit group, and pars
  • the control channel may be an enhanced physical downlink control channel (Enhanced).
  • Enhanced enhanced physical downlink control channel
  • ePDCCH Physical Downlink Control Channel
  • the first resource unit group may include, but is not limited to, a resource unit set or an eREG corresponding to the eCCE.
  • the first resource unit group includes at least one resource unit of the physical resource block pair.
  • the first resource unit group includes a resource unit of the resource unit in the physical resource block pair except the reference signal and/or other control channel mapping resource unit. At least one resource unit of other resource units.
  • the reference signal may include, but is not limited to, a Common Reference Signal (CRS), a DMRS, a Channel Status Information Reference Signal (CSI-RS), and a Positioning Reference Signal (PRS). At least one of them.
  • CRS Common Reference Signal
  • DMRS Downlink Reference Signal
  • CSI-RS Channel Status Information Reference Signal
  • PRS Positioning Reference Signal
  • the first resource unit group is respectively mapped to the physical resource block pair according to one mapping rule of the S mapping rules.
  • the S mapping rules may be further numbered.
  • the first resource unit groups are sequentially sequentially according to the order of the rule numbers of the S mapping rules.
  • One of the S mapping rules maps the first resource unit group to a resource unit in the physical resource block pair.
  • SFBC Space-Frequency Block Code
  • FSTD Frequency Switched Transmit Diversity
  • the order of the rule numbers of the S mapping rules may be that the rule numbers of the S mapping rules are arranged in a small to large manner; or the rule numbers of the S mapping rules may be arranged in a large to small order. This embodiment does not limit this.
  • the mapping rule may include, but is not limited to, at least one of the following rules:
  • the resource units corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource unit group whose number is from small to large;
  • the resource elements corresponding to the subcarriers numbered from small to large in the same OFDM symbol respectively correspond to the first resource element group whose number is large to small.
  • the terminal provided in this embodiment may be executed by the terminal provided in the embodiment corresponding to FIG.
  • the terminal provided in this embodiment may be executed by the terminal provided in the embodiment corresponding to FIG.
  • control information of some control channels such as an ePDCCH
  • a resource unit group or an eREG corresponding to a resource unit group, such as an eCCE in a physical resource block pair.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be electrical, mechanical or otherwise.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes a plurality of instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute the method of the various embodiments of the present application. Part of the steps.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a disk or an optical disk, and the like, and the program code can be stored. Medium.

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Abstract

La présente invention concerne un procédé de transmission destiné à un canal de commande, à une station de base et à un terminal. Selon ses modes de réalisation, la présente invention permet de mettre en œuvre l'envoi ou la réception de certaines informations de commande supportées par un canal de commande tel qu'un ePDCCH dans une paire de blocs de ressources physiques, au moyen d'un ensemble d'éléments de ressources ou d'un eREG correspondant à un groupe d'éléments de ressources tel qu'un eCCE.
PCT/CN2012/079441 2012-07-31 2012-07-31 Procédé de transmission pour canal de commande, station de base et terminal Ceased WO2014019144A1 (fr)

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CN112512122A (zh) * 2017-05-04 2021-03-16 华为技术有限公司 一种控制信息传输方法、相关装置及计算机存储介质
US11122557B2 (en) 2017-05-04 2021-09-14 Huawei Technologies Co., Ltd. Control information transmission method, related apparatus, and computer storage medium
CN112512122B (zh) * 2017-05-04 2022-04-08 华为技术有限公司 一种控制信息传输方法、相关装置及计算机存储介质
US11671986B2 (en) 2017-05-04 2023-06-06 Huawei Technologies Co., Ltd. Control information transmission method, related apparatus, and computer storage medium
US12089230B2 (en) 2017-05-04 2024-09-10 Huawei Technologies Co., Ltd. Control information transmission method, related apparatus, and computer storage medium

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