CN104303445B - The CSI feedback method and user equipment of the Physical Downlink Control Channel of enhancing - Google Patents

The CSI feedback method and user equipment of the Physical Downlink Control Channel of enhancing Download PDF

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Publication number
CN104303445B
CN104303445B CN201380002667.9A CN201380002667A CN104303445B CN 104303445 B CN104303445 B CN 104303445B CN 201380002667 A CN201380002667 A CN 201380002667A CN 104303445 B CN104303445 B CN 104303445B
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epdcch
csi
specific
epdcch set
resource block
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CN104303445A (en
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刘建琴
高驰
周永行
刘江华
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0675—Space-time coding characterised by the signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/02—Arrangements for detecting or preventing errors in the information received by diversity reception
    • H04L1/06—Arrangements for detecting or preventing errors in the information received by diversity reception using space diversity
    • H04L1/0618—Space-time coding
    • H04L1/0675—Space-time coding characterised by the signaling
    • H04L1/0693—Partial feedback, e.g. partial channel state information [CSI]

Abstract

The CSI feedback method and user equipment of a kind of Physical Downlink Control Channel of enhancing, wherein, the feedback method includes：UE detection CSI feedback triggering signalings；UE is according to the CSI configuration informations that the specific CSI processes of EPDCCH of the UE include to the specific CSI information of base station feedback EPDCCH, Physical Resource Block in the specific CSI information of the EPDCCH in the EPDCCH set comprising UE is to corresponding CSI information, by Physical Resource Block in EPDCCH set corresponding to the CSI configuration informations that are included according to the specific CSI processes of EPDCCH feedback to corresponding CSI information, EPDCCH transmission can be effectively realized, so as to improve EPDCCH transmission performance.

Description

The CSI feedback method and user equipment of the Physical Downlink Control Channel of enhancing
Technical field
The present embodiments relate to communication technical field, more particularly to a kind of CSI of the Physical Downlink Control Channel of enhancing Feedback method and user equipment.
Background technology
In a wireless communication system, link adaptation techniques and multi-emitting receive that (English full name is more： Multiple- Input and Multiple-Output, are abbreviated as：MIMO) technology can be obviously improved the data throughout of system, and link is certainly (English full name is the instruction of channel quality that adaptive technique is fed back according to receiving terminal：Channel Quality Indicator, contracting It is written as：CQI) dynamic adjustment modulation system and code rate so that system can increase on the premise of certain detection performance is met Message transmission rate, mimo system use multiple antennas compared to traditional a single aerial system in transmitting-receiving two-end, and mimo system leads to Cross space multiplexing technique and send multiple independent data flows to lift message transmission rate, the number of the independent data flow is referred to as (English name is order：rank).(English name is Long Term Evolution：Long Term Evolution；It is abbreviated as：LTE) system is fixed Justice is employed based on the pre- of code book based on the transmission mode of Closed-Loop Spatial Multiplexing come the performance of lifting system, Closed-Loop Spatial Multiplexing Coding techniques, that is, be pre-designed a code book for including all possible pre-coding matrix, and pre-coding matrix can use code book One index indicates, referred to as (English full name is pre-coding matrix instruction：Precoding Matrix Indicator；Contracting It is written as：PMI).(English name is user equipment：User Equipment；It is abbreviated as：UE) based under downlink reference signal estimation Row mimo channel, and optimal order, pre-coding matrix and channel quality information are determined based on the channel estimation, and it is right respectively (English full name is the order instruction answered：Rank Indicator；It is abbreviated as：RI), PMI and CQI feedback are to base station, and RI, PMI Being referred to as channel condition information with CQI feedback, (English full name is：Channel State Information；It is abbreviated as： CSI) feed back.Wherein, the specific feedback contents of UE depend on transmission mode, such as PMI only just needs under closed loop transmission pattern Feedback.
(English full name is the Physical Downlink Control Channel strengthened in LTE-Advanced following evolution： Enhanced Physical Downlink Control Channel；It is abbreviated as：EPDCCH) it is introduced into meet following control information transmission Capacity and covering demand.(English full name is with traditional Physical Downlink Shared Channel：Physical Downlink Shared Channel；It is abbreviated as：PDSCH) compare, EPDCCH can use based on demodulated reference signal (English full name for： Demodulation Reference Signals；It is abbreviated as：DM-RS precoding technique), further to improve capacity.Root According to the difference of transmission means, E-PDCCH can be divided into centralized EPDCCH and distributed EPDCCH.The form of EPDCCH transmission (i.e. aggregation level) includes 1,2,4,8,16 or 32, and aggregation level is a L EPDCCH control channel in L logic control (English full name is Enhanced Control Channel Element to Channel Elements, is abbreviated as：ECCE physics corresponding to) provides Transmitted on source.For centralized EPDCCH, resource unit corresponding to an ECCE concentrates on a Physical Resource Block to upper, right For distributed EPDCCH, resource unit corresponding to an ECCE is distributed in multiple Physical Resource Block to upper.And it is different from Rank adaptations of the PDSCH under Closed-Loop Spatial Multiplexing, the permanent data transfer of EPDCCH only support layers 1, i.e. order are 1.
At present, the EPDCCH resources of each user are at most configurable to two EPDCCH set.The two EPDCCH collection Closing to be：Two centralized EPDCCH set；Or two distributed EPDCCH set；Or a centralization and one Distributed EPDCCH set.
It was found from the content of foregoing description, EPDCCH transmission mechanism and the content of CSI feedback etc. are all different from existing skill PDSCH in art, but feed back in the prior art and in the absence of the CSI for EPDCCH, and in order to realize EPDCCH CSI Feedback, EPDCCH transmission of the prior art reuse and PDSCH identicals using with PDSCH identical CSI feedbacks, i.e. EPDCCH RI and PMI and CQI feedback etc. based on this instruction order.
The PDSCH reused in the prior art CSI feedback can not match EPDCCH transmission well, so as to result in The decline of EPDCCH transmission performances.
The content of the invention
The embodiments of the invention provide a kind of EPDCCH CSI feedback method and user equipment, for realizing EPDCCH's CSI feedback is to match EPDCCH transmission, so as to improve EPDCCH transmission performance.
First aspect present invention provides a kind of EPDCCH CSI feedback method, including：
User equipment (UE) detection CSI feedback triggering signaling；
The UE is according to the CSI configuration informations that the specific CSI processes of EPDCCH of the UE include to base station feedback EPDCCH Specific CSI information, the Physical Resource Block pair in the specific CSI information of EPDCCH in the EPDCCH set comprising the UE Corresponding CSI information.
In the first possible implementation of first aspect, the UE includes the first EPDCCH set and second EPDCCH gathers, and the first EPDCCH set and the specific CSI processes of the first EPDCCH of the UE have corresponding relation, The 2nd EPDCCH set and the specific CSI processes of the 2nd EPDCCH of the UE have corresponding relation.
The first possible implementation with reference to first aspect, in second of possible implementation：
Occur simultaneously if the first EPDCCH set of the UE has with the 2nd EPDCCH set, the first EPDCCH is specific CSI processes and the specific CSI processes of the 2nd EPDCCH comprising the first EPDCCH set with described second EPDCCH unions of sets concentrate the Physical Resource Block included to corresponding CSI configuration informations；
Or
Occur simultaneously if the first EPDCCH set of the UE has with the 2nd EPDCCH set, the first EPDCCH is specific CSI processes include Physical Resource Block in the first EPDCCH set to corresponding CSI information, the 2nd EPDCCH is special Fixed CSI processes include Physical Resource Block in the 3rd EPDCCH set to corresponding CSI configuration informations, and the described 3rd EPDCCH collection is combined into the 2nd EPDCCH set except gathering identical Physical Resource Block in addition to the first EPDCCH Set of the Physical Resource Block to composition；
Or
Occur simultaneously if the first EPDCCH set of the UE has with the 2nd EPDCCH set, the first EPDCCH is specific CSI processes include Physical Resource Block in the first EPDCCH set to corresponding CSI configuration informations, described second The specific CSI processes of EPDCCH are comprising the Physical Resource Block in the 2nd EPDCCH set to corresponding CSI configuration informations.
In first aspect in the third possible implementation, the UE includes the first EPDCCH set and the 2nd EPDCCH Set, the 3rd specific CSI of EPDCCH of the first EPDCCH set and the 2nd EPDCCH set with the UE enter Journey has corresponding relation.
The third possible implementation with reference to first aspect, in the 4th kind of possible implementation, the described 3rd The specific CSI processes of EPDCCH include the first EPDCCH set and concentrate the thing included with the 2nd EPDCCH unions of sets Resource block is managed to corresponding CSI configuration informations.
The third possible implementation with reference to first aspect, in the 5th kind of possible implementation, the described 3rd The Physical Resource Block that the specific CSI processes of EPDCCH are included at the nT1 moment in the first EPDCCH set matches somebody with somebody confidence to corresponding CSI Breath, the specific CSI processes of the 3rd EPDCCH are at the mT2 moment comprising the Physical Resource Block in the 2nd EPDCCH set to right The CSI configuration informations answered, the n and m are positive integer.
In the 6th kind of possible implementation of first aspect, the type of the EPDCCH set and the EPDCCH are special Fixed CSI processes have corresponding relation, and the specific CSI processes of EPDCCH include the EPDCCH collection with it with corresponding relation Physical Resource Block in EPDCCH set corresponding to the type of conjunction is to corresponding CSI configuration informations.
With reference to the first possible implementation of first aspect, either second of possible implementation or the 3rd The possible implementation of kind, either the 4th kind of possible implementation or the 5th kind of possible implementation, or the 6th kind Possible implementation, in the 7th kind of possible implementation, the UE is according to the specific CSI processes bags of EPDCCH of the UE The CSI configuration informations contained also include before to the specific CSI information of base station feedback EPDCCH：
The UE receives configuration signal, gathers in the configuration signal comprising the EPDCCH specific with the EPDCCH CSI processes between corresponding relation, or in the configuration signal comprising the EPDCCH set type with it is described Corresponding relation between the specific CSI processes of EPDCCH.
With reference to the first possible implementation of first aspect, either second of possible implementation or the 3rd The possible implementation of kind, either the 4th kind of possible implementation or the 5th kind of possible implementation, or the 6th kind Possible implementation, in the 8th kind of possible implementation,
Corresponding relation between the EPDCCH set and the specific CSI processes of the EPDCCH is predefined；Or
Corresponding relation between the type and the specific CSI processes of the EPDCCH of the EPDCCH set is predefined 's.
Second aspect of the present invention provides a kind of UE, including：
Detection unit, for detecting CSI feedback triggering signaling；
Feedback unit, for the CSI configuration informations that the specific CSI processes of EPDCCH according to the UE include to base station feedback The specific CSI information of EPDCCH, the physics money in the specific CSI information of EPDCCH in the EPDCCH set comprising the UE Source block is to corresponding CSI information.
In second aspect in the first possible implementation：The UE includes the first EPDCCH set and the 2nd EPDCCH Set, the first EPDCCH set and the UE specific CSI processes of the first EPDCCH have a corresponding relation, and described the Two EPDCCH gather has corresponding relation with the specific CSI processes of the 2nd EPDCCH of the UE；
And if the first EPDCCH set of the UE and the 2nd EPDCCH set are special with common factor, the first EPDCCH Fixed CSI processes and the specific CSI processes of the 2nd EPDCCH are comprising the first EPDCCH set and described second EPDCCH unions of sets concentrate the Physical Resource Block included to corresponding CSI configuration informations；
Or
Occur simultaneously if the first EPDCCH set of the UE has with the 2nd EPDCCH set, the first EPDCCH is specific CSI processes include Physical Resource Block in the first EPDCCH set to corresponding CSI configuration informations, described second The specific CSI processes of EPDCCH include the 3rd EPDCCH set in Physical Resource Block to corresponding CSI configuration informations, it is described 3rd EPDCCH collection is combined into remove in the 2nd EPDCCH set gathers identical Physical Resource Block pair with the first EPDCCH Set of the Physical Resource Block in addition to composition；
Or
Occur simultaneously if the first EPDCCH set of the UE has with the 2nd EPDCCH set, the first EPDCCH is specific CSI processes include Physical Resource Block in the first EPDCCH set to corresponding CSI configuration informations, described second The specific CSI processes of EPDCCH are comprising the Physical Resource Block in the 2nd EPDCCH set to corresponding CSI configuration informations.
In second of possible implementation of second aspect, the UE includes the first EPDCCH set and the 2nd EPDCCH Set, the 3rd specific CSI of EPDCCH of the first EPDCCH set and the 2nd EPDCCH set with the UE enter Journey has corresponding relation；
And the specific CSI processes of the 3rd EPDCCH include the first EPDCCH set and the 2nd EPDCCH collection It is closing and concentrate the Physical Resource Block that includes to corresponding CSI configuration informations, or, the specific CSI of the 3rd EPDCCH enter Journey is at the nT1 moment comprising the Physical Resource Block in the first EPDCCH set to corresponding CSI configuration informations, the 3rd EPDCCH Specific CSI processes are at the mT2 moment comprising the Physical Resource Block in the 2nd EPDCCH set to corresponding CSI configuration informations, institute It is positive integer to state n and m.
In second aspect in the third possible implementation, the type of the EPDCCH set and the EPDCCH are special Fixed CSI processes have corresponding relation, and the specific CSI processes of EPDCCH include the EPDCCH collection with it with corresponding relation Physical Resource Block in EPDCCH set corresponding to the type of conjunction is to corresponding CSI configuration informations.
Gather first aspect the first possible implementation, either second of possible implementation or the third Possible implementation, in the 4th kind of possible implementation, the UE also includes：
Configuration signal detection unit, for receiving configuration signal before the feedback unit, wrapped in the configuration signal Containing the corresponding relation between EPDCCH set and the specific CSI processes of the EPDCCH, or wrapped in the configuration signal Corresponding relation between the type and the specific CSI processes of the EPDCCH of the set containing the EPDCCH.
As can be seen from the above technical solutions, the embodiment of the present invention has advantages below：
After UE detects the specific CSI feedback triggering signalings of EPDCCH, according to the specific CSI processes bags of the EPDCCH of the UE The CSI configuration informations contained are to the specific CSI information of base station feedback EPDCCH, and the specific CSI packets of the EPDCCH are containing UE's Physical Resource Block in EPDCCH set is to corresponding CSI information, according to the configuration information in the specific CSI processes of EPDCCH The specific CSI information of EPDCCH of the UE is fed back, EPDCCH transmission can be effectively realized, so as to improve EPDCCH biography Defeated performance.
Brief description of the drawings
Fig. 1 is an a kind of schematic diagram of the CSI feedback method of EPDCCH in the embodiment of the present invention；
Fig. 2 is a schematic diagram of the structure of user equipment in the embodiment of the present invention；
Fig. 3 is another schematic diagram of the structure of user equipment in the embodiment of the present invention.
Embodiment
The embodiments of the invention provide a kind of EPDCCH CSI feedback method and user equipment, for realizing EPDCCH's Transmission, so as to improve EPDCCH transmission performance.
In order to be better understood from technical scheme, referring to Fig. 1, being a kind of EPDCCH in the embodiment of the present invention CSI feedback method embodiment, including：
101st, UE detects CSI feedback triggering signaling；
In embodiments of the present invention, UE detects CSI feedback triggering signaling, and the signaling is used to trigger UE to base station feedback UE's CSI.And CSI feedback triggering signaling is physical layer control signaling, such as up DCI or accidental access response permit (Random Access Response Grant) etc..
102nd, the CSI configuration informations that UE includes according to the UE specific CSI processes of EPDCCH are specific to base station feedback EPDCCH CSI information, the Physical Resource Block in the specific CSI information of EPDCCH in the EPDCCH set comprising UE believed corresponding CSI Breath.
In lte-a system, the supported CSI of UE enter number of passes can configure, such as can be configured to 1,2,3 or 4 etc. Deng, wherein, these CSI processes are used equally for PDSCH or EPDCCH CSI to configure.
In embodiments of the present invention, in order to improve EPDCCH transmission performance, by the CSI processes of UE configurations At least one CSI processes are configured to the specific CSI processes of EPDCCH, and the specific CSI processes of the EPDCCH refer to the CSI processes In CSI be configured to EPDCCH set in Physical Resource Block corresponding CSI is configured.Therefore, UE can be specific according to EPDCCH CSI processes in CSI configure to base station feedback EPDCCH gather in Physical Resource Block to corresponding CSI information.
In embodiments of the present invention, CSI information includes CSI metrical informations and CSI feedback information, wherein CSI metrical informations Including CSI-RS zero energys, non-zero power, interferometry configuration etc., CSI feedback information includes order instruction (RI), pre-coding matrix Indicate (PMI), channel quality instruction (CQI), precoding type instruction (PTI) etc..
In embodiments of the present invention, it is after UE detects CSI feedback triggering signaling, the EPDCCH according to the UE is specific The CSI configuration informations that CSI processes include are to the specific CSI information of base station feedback EPDCCH, the specific CSI information of the EPDCCH In comprising EPDCCH set in Physical Resource Block to corresponding CSI information.
In embodiments of the present invention, base station will receive the specific CSI information of EPDCCH of UE feedbacks, enabling effectively The transmission for realizing EPDCCH, improve EPDCCH transmission performance.
In embodiments of the present invention, UE is configured one or two EPDCCH set, if an ECCE of EPDCCH set Resource unit in a Physical Resource Block to upper, then EPDCCH set can be described as centralized EPDCCH set, if EPDCCH One ECCE of set is distributed at least two Physical Resource Block to upper, then EPDCCH set can be described as distributed EPDCCH collection Close, therefore, the EPDCCH set for being allocated to UE has three kinds of combined situations, including：One or two centralized EPDCCH set； One or two distributed EPDCCH set；One centralized EPDCCH set and a distributed EPDCCH set are, it is necessary to say Bright, the number and type for being allocated to UE EPDCCH set can be configured by high-rise RRC signaling.
In embodiments of the present invention, configurable UE has the specific CSI processes of at least one EPDCCH, will be situated between respectively below The UE specific CSI of EPDCCH of continuing enter EPDCCH specific CSI of the number of passes more than 1 and UE and enter number of passes in the case of 1, UE's EPDCCH gathers the corresponding relation between the specific CSI processes of EPDCCH.
1) the UE specific CSI of EPDCCH enter number of passes more than 1 and EPDCCH set number be 2 in the case of, system can lead to Cross the mode pre-set set the specific CSI processes of UE EPDCCH and UE two EPDCCH gather between corresponding relation, Or the corresponding pass between the specific CSI processes of UE EPDCCH and UE two EPDCCH set is indicated by RRC signaling System.
For the ease of description, UE two EPDCCH set can be referred to as the first EPDCCH set and the 2nd EPDCCH Set.Especially, when the specific CSI of UE EPDCCH enter number of passes more than or equal to 2, UE is by way of pre-defined or RRC believes Make notice mode come obtain the first EPDCCH set and the 2nd EPDCCH set and UE the specific CSI processes of EPDCCH it Between corresponding relation.Such as when it is 2 that EPDCCH CSI, which enter number of passes, the first EPDCCH set and first EPDCCH are pre-defined CSI processes are corresponding, and the 2nd EPDCCH set is corresponding with second EPDCCH CSI process.Or by the semi-static notice of RRC signaling EPDCCH gathers the corresponding relation between the specific CSI processes of EPDCCH.
In embodiments of the present invention, UE can gather close corresponding between the specific CSI processes of EPDCCH according to EPDCCH System sets the CSI configuration informations that the specific CSI processes of EPDCCH include, wherein, EPDCCH set and the specific CSI of EPDCCH Corresponding relation between process specifically has following several situations, including：
A1) occur simultaneously if UE the first EPDCCH set has with the 2nd EPDCCH set, i.e. the first EPDCCH set and the In two EPDCCH set when including identical Physical Resource Block pair, then specific CSI processes of the first EPDCCH and second The specific CSI processes of EPDCCH can include the first EPDCCH set and thing in the 2nd EPDCCH set and that concentration includes Resource block is managed to corresponding CSI configuration informations, such as：If the Physical Resource Block in the first EPDCCH set is A, B, C, D, the Physical Resource Block in two EPDCCH set be C, D, E, F, and the Physical Resource Block that includes of concentration is A, B, C, D, E, F, then the The specific CSI processes of one EPDCCH and the specific CSI processes of the 2nd EPDCCH can include Physical Resource Block A, B, C, D, E, CSI configuration informations corresponding to F.
A2) occur simultaneously if UE the first EPDCCH set has with the 2nd EPDCCH set, the first specific CSI of EPDCCH The Physical Resource Block that process is included in the first EPDCCH set enters to corresponding CSI configuration informations, the 2nd specific CSI of EPDCCH Journey includes Physical Resource Block in the 3rd EPDCCH set to corresponding CSI configuration informations, wherein, the 3rd EPDCCH collection is combined into the The collection of Physical Resource Block in two EPDCCH set in gathering with the first EPDCCH in addition to identical Physical Resource Block to composition Close, such as：If the Physical Resource Block in the first EPDCCH set is to including A, B, C, D, the physics in the 2nd EPDCCH set provides To including C, D, E, F, identical Physical Resource Block pair, and available 3rd EPDCCH collection between this two set be present in source block Close, Physical Resource Block in the set is to including E and F, then the specific CSI processes of the first EPDCCH include the first EPDCCH collection Physical Resource Block in conjunction includes the 3rd EPDCCH to A, B, C, D CSI configuration informations, the specific CSI processes of the 2nd EPDCCH Physical Resource Block is to E, F CSI configuration informations in set.
A3) occur simultaneously if UE the first EPDCCH set has with the 2nd EPDCCH set, the first specific CSI of EPDCCH The Physical Resource Block that process is included in the first EPDCCH set enters to corresponding CSI configuration informations, the 2nd specific CSI of EPDCCH Journey is comprising the Physical Resource Block in the 2nd EPDCCH set to corresponding CSI configuration informations.
2) in the case where there is UE the number of the specific CSI processes of an EPDCCH and UE EPDCCH set to be 2, it is System can be set by way of pre-setting between the UE specific CSI processes of EPDCCH and UE two EPDCCH set Corresponding relation, or, system can also send RRC signaling to UE, and the UE specific CSI processes of EPDCCH are included in the RRC signaling The corresponding relation between UE two EPDCCH set, i.e. the first EPDCCH set of UE and the 2nd EPDCCH gather with The UE specific CSI processes of the 3rd EPDCCH have corresponding relation.
In embodiments of the present invention, the first EPDCCH set and the 2nd EPDCCH set are specific with UE the 3rd EPDCCH Corresponding relation between CSI processes has following several situations, including：
B1) the specific CSI processes of the 3rd EPDCCH include the first EPDCCH set and concentrated with the 2nd EPDCCH unions of sets Comprising Physical Resource Block to corresponding CSI configuration informations, such as：If Physical Resource Block in the first EPDCCH set to for A, B, C, D, Physical Resource Block in the 2nd EPDCCH set is to for C, D, E, F, then the first EPDCCH set and the 2nd EPDCCH collection Close and be grouped as A, B, C, D, E, F, the specific CSI processes of the 3rd EPDCCH include Physical Resource Block A, B, C, D, E, F CSI Configuration information.
B2) the specific CSI processes of the 3rd EPDCCH include the Physical Resource Block pair in the first EPDCCH set at the nT1 moment Corresponding CSI configuration informations, and the specific CSI processes of the 3rd EPDCCH include the thing in the 2nd EPDCCH set at the mT2 moment Resource block is managed to corresponding CSI configuration informations, and the n and m is positive integer so that the specific CSI processes of the 3rd EPDCCH can In turn comprising the Physical Resource Block in the first EPDCCH set and the 2nd EPDCCH set to corresponding CSI configuration informations.
It should be noted that " the first EPDCCH set ", " the 2nd EPDCCH set ", the " the 3rd in embodiments of the present invention " first ", " second " " the 3rd " in EPDCCH set " are only used for distinguishing different EPDCCH set, not to being included in set The number of Physical Resource Block pair and the type of set cause to limit.In addition, " the specific CSI processes of the first EPDCCH ", " second The specific CSI processes of EPDCCH ", " first ", " second " in " the specific CSI processes of the 3rd EPDCCH ", " the 3rd " also only use In difference and the specific CSI processes of EPDCCH corresponding to different set.
It should be noted that in embodiments of the present invention, the specific CSI processes of the first EPDCCH include at least one The specific CSI processes of EPDCCH, the specific CSI processes of the 2nd EPDCCH also include the specific CSI processes of at least one EPDCCH.
In embodiments of the present invention, the specific CSI processes of each EPDCCH of UE configurations can include covers different configurations more, And carry out periodicity switching between more set configurations so that can be used at different moments corresponding to different CSI configuration informations transmissions Physical Resource Block in EPDCCH set is to corresponding CSI information.Here, at different moments corresponding to the specific CSI processes of EPDCCH EPDCCH set can be with identical or different.And more sets that the specific CSI processes of EPDCCH include it is different configuration it is specific by EPDCCH The different of each field in CSI processes are configured to obtain.
Foregoing description be EPDCCH set the specific CSI processes of EPDCCH between correspondence setting situation, Being described below between type and the specific CSI processes of EPDCCH that EPDCCH gathers has a case that corresponding relation.
In embodiments of the present invention, system can pre-set the type and the EPDCCH of the UE of UE two EPDCCH set Corresponding relation between specific CSI processes, or system can send RRC signaling to UE, include the UE's in the RRC signaling Corresponding relation between the specific CSI processes of EPDCCH of the type and the UE of EPDCCH set, and UE EPDCCH is specific CSI processes include the Physical Resource Block pair in the type corresponding EPDCCH set for the EPDCCH set for having corresponding relation with it Corresponding CSI configuration informations so that different types of EPDCCH set has the specific CSI processes of different EPDCCH.For example, Predefined fixation is can be configured to for the CSI-RS corresponding to distributed EPDCCH set in the specific CSI processes of EPDCCH Pattern, and use order perseverance then to be used for centralized EPDCCH set for 1 bandwidth CQI feedback mechanism in CSI feedback mechanism The subband CQI/PMI feedback mechanisms that the specific CSI-RS configurations of UE and order perseverance are 1.
In embodiments of the present invention, UE a kind of EPDCCH set can correspond to the specific CSI of at least one EPDCCH and enter Journey.
In embodiments of the present invention, after UE detects CSI feedback triggering signaling, entered according to the specific CSI of UE EPDCCH The CSI configuration informations that journey includes wrap to base station feedback EPDCCH specific CSI information in the specific CSI information of the EPDCCH Physical Resource Block in gathering containing EPDCCH passes through what is included according to the specific CSI processes of EPDCCH to corresponding CSI information CSI configuration informations feed back the UE EPDCCH set in Physical Resource Block to corresponding CSI information, can effectively realize EPDCCH transmission, so as to improve EPDCCH transmission performance.
Referring to Fig. 2, be one embodiment of the structure of user equipment in the embodiment of the present invention, including：
Detection unit 201, for detecting CSI feedback triggering signaling；
Feedback unit 202, for the CSI configuration informations that the specific CSI processes of EPDCCH according to the UE include to base station The specific CSI information of EPDCCH is fed back, in the EPDCCH set that the UE is included in the specific CSI information of EPDCCH Physical Resource Block is to corresponding CSI information.
Preferably, in embodiments of the present invention, UE also includes：
Configuration signal receiving unit 203, it is described to match somebody with somebody confidence for receiving configuration signal before the feedback unit 202 Comprising the corresponding relation between EPDCCH set and the specific CSI processes of the EPDCCH in order, or described match somebody with somebody confidence The corresponding relation between type and the specific CSI processes of the EPDCCH comprising EPDCCH set in order.
In embodiments of the present invention, after UE detection unit 201 detects CSI feedback triggering signaling, feedback unit 202 , should by the CSI configuration informations that the specific CSI processes of EPDCCH according to UE include to the specific CSI information of base station feedback EPDCCH Physical Resource Block in the specific CSI information of EPDCCH in the EPDCCH set comprising UE is to corresponding CSI information.Wherein, UE Feedback unit 202 to before the specific CSI information of base station feedback EPDCCH, configuration signal receiving unit 203 will be passed through Configuration signal is received, the corresponding relation between EPDCCH set and the specific CSI processes of EPDCCH is included in the configuration signal, or Person includes the corresponding relation between the type and the specific CSI processes of EPDCCH of EPDCCH set.
In lte-a system, the supported CSI of UE enter number of passes can configure, such as can be configured to 1,2,3 or 4 etc. Deng, wherein, each CSI processes are used equally for PDSCH and EPDCCH data transfer.In embodiments of the present invention, in order to Improve EPDCCH transmission performance, it is specific that at least one CSI processes in the CSI processes of UE configurations are arranged into EPDCCH CSI processes, the specific CSI processes of the EPDCCH refer to that the CSI feedback in the CSI processes includes physics in EPDCCH set and provided Source block is to corresponding CSI configuration informations.Therefore, UE can be according to the CSI configuration informations of the specific CSI processes of EPDCCH to base station The Physical Resource Block in EPDCCH set is fed back to corresponding CSI information.
In embodiments of the present invention, CSI information includes CSI metrical informations and CSI feedback information.
In embodiments of the present invention, after UE detection unit 201 detects CSI feedback triggering signaling, by feedback unit The CSI configuration informations included in the 202 specific CSI processes of EPDCCH according to UE are believed to the specific CSI of base station feedback EPDCCH Cease, the corresponding CSI information of the Physical Resource Block pair in EPDCCH set is included in the specific CSI information of the EPDCCH.Need Illustrate, feedback unit 202, which can be additionally used in other Physical Resource Block for including PDSCH to base station feedback, to be believed corresponding CSI One or more CSI processes of breath.
In embodiments of the present invention, UE gathers comprising one or two EPDCCH, if an ECCE of EPDCCH set Resource unit is in a Physical Resource Block to upper, then EPDCCH set can be described as centralized EPDCCH set, if EPDCCH collection The ECCE closed is distributed at least two Physical Resource Block to upper, then EPDCCH set can be described as distributed EPDCCH collection Close, therefore, the EPDCCH set that UE is included has three kinds of combined situations, including：UE includes one or two centralized EPDCCH Set；UE includes one or two distributed EPDCCH set；UE includes a centralized EPDCCH set and a distribution EPDCCH gathers, it is necessary to which explanation, the number and type of UE EPDCCH set can be configured by high-rise RRC signaling.
In embodiments of the present invention, configurable UE has the specific CSI processes of at least one EPDCCH, will be situated between respectively below The UE specific CSI of EPDCCH of continuing enter EPDCCH specific CSI of the number of passes more than 1 and UE and enter number of passes in the case of 1, UE's EPDCCH gathers the corresponding relation between the specific CSI processes of EPDCCH.
1) the UE specific CSI of EPDCCH enter number of passes more than 1 and EPDCCH set number be 2 in the case of, system can lead to Cross the mode pre-set set the specific CSI processes of UE EPDCCH and UE two EPDCCH gather between corresponding relation, Or the corresponding pass between the specific CSI processes of UE EPDCCH and UE two EPDCCH set is indicated by RRC signaling System.
For the ease of description, UE two EPDCCH set can be referred to as the first EPDCCH set and the 2nd EPDCCH Set.Especially, when the specific CSI of UE EPDCCH enter number of passes more than or equal to 2, UE is by way of pre-defined or RRC believes Make notice mode come obtain the first EPDCCH set and the 2nd EPDCCH set and UE the specific CSI processes of EPDCCH it Between corresponding relation.
In embodiments of the present invention, UE can gather close corresponding between the specific CSI processes of EPDCCH according to EPDCCH System sets the CSI configuration informations included in the specific CSI processes of EPDCCH, wherein, EPDCCH set and the specific CSI of EPDCCH Corresponding relation between process specifically has following several situations, including：
A1) occur simultaneously if UE the first EPDCCH set has with the 2nd EPDCCH set, i.e. the first EPDCCH set and the In two EPDCCH set when including identical Physical Resource Block pair, then specific CSI processes of the first EPDCCH and second The specific CSI processes of EPDCCH can include the first EPDCCH set and thing in the 2nd EPDCCH set and that concentration includes Resource block is managed to corresponding CSI configuration informations, such as：If the Physical Resource Block in the first EPDCCH set is A, B, C, D, the Physical Resource Block in two EPDCCH set be C, D, E, F, and the Physical Resource Block that includes of concentration is A, B, C, D, E, F, then the The specific CSI processes of one EPDCCH and the specific CSI processes of the 2nd EPDCCH can include Physical Resource Block A, B, C, D, E, CSI configuration informations corresponding to F.
A2) occur simultaneously if UE the first EPDCCH set has with the 2nd EPDCCH set, the first specific CSI of EPDCCH The Physical Resource Block that process is included in the first EPDCCH set enters to corresponding CSI configuration informations, the 2nd specific CSI of EPDCCH Journey includes Physical Resource Block in the 3rd EPDCCH set to corresponding CSI configuration informations, wherein, the 3rd EPDCCH collection is combined into the The collection of Physical Resource Block in two EPDCCH set in gathering with the first EPDCCH in addition to identical Physical Resource Block to composition Close, such as：If the Physical Resource Block in the first EPDCCH set is to including A, B, C, D, the physics in the 2nd EPDCCH set provides To including C, D, E, F, identical Physical Resource Block pair, and available 3rd EPDCCH collection between this two set be present in source block Close, Physical Resource Block in the set is to including E and F, then the specific CSI processes of the first EPDCCH include the first EPDCCH collection Physical Resource Block in conjunction includes the 3rd EPDCCH to A, B, C, D CSI configuration informations, the specific CSI processes of the 2nd EPDCCH Physical Resource Block is to E, F CSI configuration informations in set.
A3) occur simultaneously if UE the first EPDCCH set has with the 2nd EPDCCH set, the first specific CSI of EPDCCH The Physical Resource Block that process is included in the first EPDCCH set enters to corresponding CSI configuration informations, the 2nd specific CSI of EPDCCH Journey is comprising the Physical Resource Block in the 2nd EPDCCH set to corresponding CSI configuration informations.
2) in the case where there is UE the number of the specific CSI processes of an EPDCCH and UE EPDCCH set to be 2, it is System can be set by way of pre-setting between the UE specific CSI processes of EPDCCH and UE two EPDCCH set Corresponding relation, or, system can also send RRC signaling to UE, and the UE specific CSI processes of EPDCCH are included in the RRC signaling The corresponding relation between UE two EPDCCH set, i.e. the first EPDCCH set of UE and the 2nd EPDCCH gather with The UE specific CSI processes of the 3rd EPDCCH have corresponding relation.
In embodiments of the present invention, the first EPDCCH set and the 2nd EPDCCH set are specific with UE the 3rd EPDCCH Corresponding relation between CSI processes has following several situations, including：
B1) the specific CSI processes of the 3rd EPDCCH include the first EPDCCH set and concentrated with the 2nd EPDCCH unions of sets Comprising Physical Resource Block to corresponding CSI configuration informations, such as：If Physical Resource Block in the first EPDCCH set to for A, B, C, D, Physical Resource Block in the 2nd EPDCCH set is to for C, D, E, F, then the first EPDCCH set and the 2nd EPDCCH collection Close and be grouped as A, B, C, D, E, F, the specific CSI processes of the 3rd EPDCCH include Physical Resource Block A, B, C, D, E, F CSI Configuration information.
B2) the specific CSI processes of the 3rd EPDCCH include the Physical Resource Block pair in the first EPDCCH set at the nT1 moment Corresponding CSI configuration informations, and the specific CSI processes of the 3rd EPDCCH include the thing in the 2nd EPDCCH set at the mT2 moment Resource block is managed to corresponding CSI configuration informations, and the n and m is positive integer so that the specific CSI processes of the 3rd EPDCCH can In turn comprising the Physical Resource Block in the first EPDCCH set and the 2nd EPDCCH set to corresponding CSI configuration informations.
It should be noted that " the first EPDCCH set ", " the 2nd EPDCCH set ", the " the 3rd in embodiments of the present invention " first ", " second " " the 3rd " in EPDCCH set " are only used for distinguishing different EPDCCH set, not to being included in set The number of Physical Resource Block pair and the type of set cause to limit.In addition, " the specific CSI processes of the first EPDCCH ", " second The specific CSI processes of EPDCCH ", " first ", " second " in " the specific CSI processes of the 3rd EPDCCH ", " the 3rd " also only use In difference and the specific CSI processes of EPDCCH corresponding to different set.
It should be noted that in embodiments of the present invention, the specific CSI processes of the first EPDCCH include at least one The specific CSI processes of EPDCCH, the specific CSI processes of the 2nd EPDCCH also include the specific CSI processes of at least one EPDCCH.
In embodiments of the present invention, the specific CSI processes of EPDCCH of UE configurations can include more sets and configure, and in more sets Periodicity switching is carried out between configuration so that in it can be used different CSI to configure EPDCCH set corresponding to transmission at different moments Physical Resource Block to corresponding CSI information.
Foregoing description be EPDCCH set the specific CSI processes of EPDCCH between correspondence setting situation, Being described below between type and the specific CSI processes of EPDCCH that EPDCCH gathers has a case that corresponding relation.
In embodiments of the present invention, system can pre-set the type and the EPDCCH of the UE of UE two EPDCCH set Corresponding relation between specific CSI processes, or system can send RRC signaling to UE, include the UE's in the RRC signaling Corresponding relation between the specific CSI processes of EPDCCH of the type and the UE of EPDCCH set, and UE EPDCCH is specific CSI processes include the Physical Resource Block pair in the type corresponding EPDCCH set for the EPDCCH set for having corresponding relation with it Corresponding CSI configuration informations so that different types of EPDCCH set has the specific CSI processes of different EPDCCH.For example, Predefined fixation is can be configured to for the CSI-RS corresponding to distributed EPDCCH set in the specific CSI processes of EPDCCH Pattern, and use order perseverance then to be used for centralized EPDCCH set for 1 broadband CQI feedback mechanism in CSI feedback mechanism The subband CQI/PMI feedback mechanisms that the specific CSI-RS configurations of UE and order perseverance are 1.
In embodiments of the present invention, UE a kind of EPDCCH set can correspond to the specific CSI of at least one EPDCCH and enter Journey.
In embodiments of the present invention, after UE detects CSI feedback triggering signaling, according to the specific CSI of the EPDCCH of the UE The CSI configuration informations that process includes are to the specific CSI information of base station feedback EPDCCH, and in the specific CSI information of the EPDCCH Physical Resource Block in gathering comprising EPDCCH passes through what is included according to the specific CSI processes of EPDCCH to corresponding CSI information CSI configuration informations feed back the UE EPDCCH set in Physical Resource Block to corresponding CSI information, can effectively realize EPDCCH transmission, so as to improve EPDCCH transmission performance.
Referring to Fig. 3, be the embodiment of the structure of user equipment in the embodiment of the present invention, including：
Processor 301, dispensing device 302, reception device 303 and memory 304；
Wherein, processor 301 is used to detect CSI feedback triggering signaling, and is touched after CSI feedback triggering signaling is detected Send out dispensing device 302 described according to the CSI configuration informations that the UE specific CSI processes of EPDCCH include to base station feedback EPDCCH Specific CSI information, the Physical Resource Block in the specific CSI information of the EPDCCH in the EPDCCH set comprising UE is to corresponding CSI information.
Can be with one of ordinary skill in the art will appreciate that realizing that all or part of step in above-described embodiment method is The hardware of correlation is instructed to complete by program, described program can be stored in a kind of computer-readable recording medium, on It can be read-only storage to state the storage medium mentioned, disk or CD etc..
The CSI feedback method and user of a kind of Physical Downlink Control Channel of enhancing provided by the present invention are set above It is standby, it is described in detail, for those of ordinary skill in the art, according to the thought of the embodiment of the present invention, is being embodied There will be changes in mode and application, in summary, this specification content should not be construed as limiting the invention.

Claims (14)

  1. A kind of 1. Physical Downlink Control Channel EPDCCH of enhancing CSI back method, it is characterised in that bag Include：
    User equipment (UE) detection CSI feedback triggering signaling；
    The CSI configuration informations that the UE includes according to the specific CSI processes of EPDCCH of the UE are specific to base station feedback EPDCCH CSI information, the Physical Resource Block in the specific CSI information of EPDCCH in the EPDCCH set comprising the UE is to corresponding CSI information；
    The UE includes the first EPDCCH set and the 2nd EPDCCH set, the first EPDCCH set and the first of the UE The specific CSI processes of EPDCCH have corresponding relation, and the 2nd EPDCCH gathers specific with the 2nd EPDCCH of the UE CSI processes have corresponding relation.
  2. 2. feedback method according to claim 1, it is characterised in that
    Occur simultaneously if the first EPDCCH set of the UE has with the 2nd EPDCCH set, the first EPDCCH is specific CSI processes and the specific CSI processes of the 2nd EPDCCH are comprising the first EPDCCH set and the 2nd EPDCCH Union of sets concentrates the Physical Resource Block included to corresponding CSI configuration informations；
    Or
    Occur simultaneously if the first EPDCCH set of the UE has with the 2nd EPDCCH set, the first EPDCCH is specific CSI processes are comprising the Physical Resource Block in the first EPDCCH set to corresponding CSI configuration informations, the 2nd EPDCCH Specific CSI processes include Physical Resource Block in the 3rd EPDCCH set to corresponding CSI configuration informations, and the described 3rd EPDCCH collection is combined into the 2nd EPDCCH set except gathering identical Physical Resource Block in addition to the first EPDCCH Set of the Physical Resource Block to composition；
    Or
    Occur simultaneously if the first EPDCCH set of the UE has with the 2nd EPDCCH set, the first EPDCCH is specific CSI processes are comprising the Physical Resource Block in the first EPDCCH set to corresponding CSI configuration informations, the 2nd EPDCCH Specific CSI processes are comprising the Physical Resource Block in the 2nd EPDCCH set to corresponding CSI configuration informations.
  3. 3. feedback method according to claim 1, it is characterised in that the UE includes the first EPDCCH set and second EPDCCH gathers, and the first EPDCCH set and the 2nd EPDCCH set are specific with the 3rd EPDCCH of the UE CSI processes have corresponding relation.
  4. 4. feedback method according to claim 3, it is characterised in that the specific CSI processes of the 3rd EPDCCH include The first EPDCCH set concentrates the Physical Resource Block included to configure corresponding CSI with the 2nd EPDCCH unions of sets Information.
  5. 5. feedback method according to claim 3, it is characterised in that the specific CSI processes of the 3rd EPDCCH are in nT1 The Physical Resource Block that moment is included in the first EPDCCH set is specific to corresponding CSI configuration informations, the 3rd EPDCCH CSI processes are at the mT2 moment comprising the Physical Resource Block in the 2nd EPDCCH set to corresponding CSI configuration informations, the n It is positive integer with m.
  6. 6. feedback method according to claim 1, it is characterised in that the type of the EPDCCH set and the EPDCCH Specific CSI processes have corresponding relation, and the specific CSI processes of EPDCCH include the EPDCCH with it with corresponding relation Physical Resource Block in EPDCCH set corresponding to the type of set is to corresponding CSI configuration informations.
  7. 7. according to the feedback method described in any one of claim 1 to 6, it is characterised in that the UE is according to the UE's The CSI configuration informations that the specific CSI processes of EPDCCH include also include before to the specific CSI information of base station feedback EPDCCH：
    The UE receives configuration signal, and EPDCCH set and the specific CSI of the EPDCCH are included in the configuration signal Type and the EPDCCH comprising EPDCCH set in corresponding relation between process, or the configuration signal is specific CSI processes between corresponding relation.
  8. 8. according to the feedback method described in any one of claim 1 to 6, it is characterised in that：
    Corresponding relation between the EPDCCH set and the specific CSI processes of the EPDCCH is predefined；Or
    Corresponding relation between the type and the specific CSI processes of the EPDCCH of the EPDCCH set is predefined.
  9. A kind of 9. user equipment (UE), it is characterised in that including：
    Detection unit, for detecting CSI feedback triggering signaling；
    Feedback unit, for the CSI configuration informations that the specific CSI processes of EPDCCH according to the UE include to base station feedback The specific CSI information of EPDCCH, the physics money in the specific CSI information of EPDCCH in the EPDCCH set comprising the UE Source block is to corresponding CSI information；
    The UE includes the first EPDCCH set and the 2nd EPDCCH set, the first EPDCCH set and the first of the UE The specific CSI processes of EPDCCH have corresponding relation, and the 2nd EPDCCH gathers specific with the 2nd EPDCCH of the UE CSI processes have corresponding relation.
  10. 10. UE according to claim 9, it is characterised in that if the first EPDCCH set and the 2nd EPDCCH of the UE Set, which has, occurs simultaneously, then the specific CSI processes of the first EPDCCH and the specific CSI processes of the 2nd EPDCCH include The first EPDCCH set concentrates the Physical Resource Block included to configure corresponding CSI with the 2nd EPDCCH unions of sets Information；
    Or
    Occur simultaneously if the first EPDCCH set of the UE has with the 2nd EPDCCH set, the first EPDCCH is specific CSI processes are comprising the Physical Resource Block in the first EPDCCH set to corresponding CSI configuration informations, the 2nd EPDCCH Specific CSI processes include Physical Resource Block in the 3rd EPDCCH set to corresponding CSI configuration informations, and the described 3rd EPDCCH collection is combined into the 2nd EPDCCH set except gathering identical Physical Resource Block in addition to the first EPDCCH Set of the Physical Resource Block to composition；
    Or
    Occur simultaneously if the first EPDCCH set of the UE has with the 2nd EPDCCH set, the first EPDCCH is specific CSI processes are comprising the Physical Resource Block in the first EPDCCH set to corresponding CSI configuration informations, the 2nd EPDCCH Specific CSI processes are comprising the Physical Resource Block in the 2nd EPDCCH set to corresponding CSI configuration informations.
  11. 11. UE according to claim 9, it is characterised in that the UE includes the first EPDCCH set and the 2nd EPDCCH Set, the 3rd specific CSI of EPDCCH of the first EPDCCH set and the 2nd EPDCCH set with the UE enter Journey has corresponding relation；
    And the specific CSI processes of the 3rd EPDCCH include the first EPDCCH set and the 2nd EPDCCH set And the Physical Resource Block included is concentrated to corresponding CSI configuration informations, or, the specific CSI processes of the 3rd EPDCCH exist The Physical Resource Block that the nT1 moment is included in the first EPDCCH set is specific to corresponding CSI configuration informations, the 3rd EPDCCH CSI processes the mT2 moment include the 2nd EPDCCH set in Physical Resource Block to corresponding CSI configuration informations, institute It is positive integer to state n and m.
  12. 12. UE according to claim 9, it is characterised in that the type of the EPDCCH set and the EPDCCH are specific CSI processes there is corresponding relation, the specific CSI processes of EPDCCH include the EPDCCH for having corresponding relation with it and gathered Type corresponding to EPDCCH set in Physical Resource Block to corresponding CSI configuration informations.
  13. 13. according to the UE described in any one of claim 10 to 12, it is characterised in that the UE also includes：
    Configuration signal detection unit, for receiving configuration signal before the feedback unit, institute is included in the configuration signal The corresponding relation between EPDCCH set and the specific CSI processes of the EPDCCH is stated, or institute is included in the configuration signal State the corresponding relation between the type and the specific CSI processes of the EPDCCH of EPDCCH set.
  14. A kind of 14. user equipment, it is characterised in that including：
    Processor, dispensing device, reception device and memory；
    The processor is used to detect CSI feedback triggering signaling, and after the CSI feedback signaling is detected, described in triggering Dispensing device is believed according to the CSI configuration informations that the UE specific CSI processes of EPDCCH include to the specific CSI of base station feedback EPDCCH Cease, the Physical Resource Block in the specific CSI information of EPDCCH in the EPDCCH set comprising the UE is believed corresponding CSI Breath；
    The UE includes the first EPDCCH set and the 2nd EPDCCH set, the first EPDCCH set and the first of the UE The specific CSI processes of EPDCCH have corresponding relation, and the 2nd EPDCCH gathers specific with the 2nd EPDCCH of the UE CSI processes have corresponding relation.
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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102263584A (en) * 2011-08-19 2011-11-30 电信科学技术研究院 Aperiodically channel state information feedback method and device
CN102916785A (en) * 2011-08-04 2013-02-06 华为技术有限公司 Information feedback method, user equipment and base station
CN103023621A (en) * 2011-09-23 2013-04-03 华为技术有限公司 Information transmission method, user equipment and base station

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130114495A1 (en) * 2011-11-04 2013-05-09 Qualcomm Incorporated Physical Channel Characteristics for e-PDCCH in LTE
CN102546110A (en) * 2011-12-31 2012-07-04 电信科学技术研究院 Channel state information transmission method and device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102916785A (en) * 2011-08-04 2013-02-06 华为技术有限公司 Information feedback method, user equipment and base station
CN102263584A (en) * 2011-08-19 2011-11-30 电信科学技术研究院 Aperiodically channel state information feedback method and device
CN103023621A (en) * 2011-09-23 2013-04-03 华为技术有限公司 Information transmission method, user equipment and base station

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