CN102761398B

CN102761398B - Control channel and reference signal transmitting and receiving method, base station and user device

Info

Publication number: CN102761398B
Application number: CN201110107386.2A
Authority: CN
Inventors: 张永平
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2011-04-27
Filing date: 2011-04-27
Publication date: 2017-04-12
Anticipated expiration: 2031-04-27
Also published as: CN102761398A

Abstract

The invention provides a control channel and reference signal transmitting and receiving method, a base station and a user device. The control channel transmitting method comprises the following steps: generating control channel contents corresponding to a cell identity and a configuration identity for the channel state information reference signal CSI-RS configured for the user device in the cell; and mapping the control channel contents to time frequency resources according to the cell identity and the CSI-RS configuration identity for transmission. According to the technical scheme of the invention, multiple control channels can be generated for one cell to improve the capacity of the control channels of the cell, thereby increasing the number of UE which can be really served in the cell and enhancing the service performance of the cell.

Description

Control channel and reference signal transmitting and method of reseptance, base station and user equipment

Technical field

The present embodiments relate to wireless communication technology, more particularly to a kind of transmitting of control channel and method of reseptance, reference Signal is launched and method of reseptance, base station and user equipment.

Background technology

Spaced antenna technology allows for base station to be divided into radio base band control (Radio Server；Referred to as：RS) and Far end radio frequency head (Remote Radio Head；Referred to as：RRH) two parts, therefore, with shortening access point and user equipment (User Equipment；Referred to as：The distance between UE), reduce path loss, expand the coverage area, improve systematic function etc. Advantage.In 3GPP advanced Long Term Evolution (Long Term Evolution-Advanced；Referred to as：LTE-A) the association of Rel11 (Coordinated Multiple Point Transmission and Reception are received and dispatched with multiple spot；Referred to as：CoMP) In technology, spaced antenna technology is employed, several lower powered RRH, these RRH are configured with macrocell coverage area There is identical cell ID with place macrocell, and it is direct-connected by the RS in high power capacity, the optical fiber and macrocell of low time delay.With original The centralized antenna configurations mode having is compared, and these RRH under spaced antenna configuration mode are shortened between access point and UE Distance, greatly improve the UE quantity that same cell can be serviced, improve the performance of system.

Wherein, the UE quantity that really can obtain servicing in cell is to weigh a benchmark of estate performance, and in cell The UE that really can obtain servicing is referred to by the UE of the control channel scheduling in cell.In existing LTE system, control letter Road is that cell is specific, that is to say, that in same cell, the content either launched in control channel still used when Frequency resource is all identical, in the same manner, demodulates the cell specific reference signal (Cell-specific used by control channel ReferenceSignals；Referred to as：CRS) shift parameters of sequence and CRS sequences when frequency domain resource maps are also identical 's.Under spaced antenna configuration mode, in order to avoid interference, or using all transfer points (including RRH and RS) while sending out The mode of control channel is penetrated, or is launched using some transfer points simultaneously, and other transfer points do not send the mode of control channel To dispatch UE.But which kind of mode no matter is adopted, a control channel in system, is only existed, and the UE that control channel can be dispatched Quantity is determined by the radiation pattern of the system bandwidth of cell, transmit antenna port number, scheduling UE, therefore, when cell determination Afterwards, the UE quantity that control channel can be dispatched also is determined that.As can be seen here, the capacity of control channel becomes the distributed day of raising The bottleneck of the UE quantity of service can be really obtained under line configuration mode in cell, the raising of estate performance is limited.

The content of the invention

The embodiment of the present invention provides a kind of control channel transmitting with method of reseptance, reference signal transmitting and method of reseptance, base Stand and user equipment, the UE quantity for servicing can be really obtained under spaced antenna configuration mode in cell to improve, improve The service performance of cell.

The embodiment of the present invention provides a kind of control channel launching technique, including：

Channel state information reference signals CSI-RS that generation is configured with cell ID and by intra-cell users equipment are matched somebody with somebody Put the corresponding control channel content of mark；

According to the cell ID and the CSI-RS configuration identifiers, by the control channel content map to running time-frequency resource On launched.

The embodiment of the present invention provides a kind of control channel method of reseptance, including：

User equipment is joined according to the cell ID of place cell and by the channel condition information that the user equipment is configured Signal CSI-RS configuration identifiers are examined, control channel content is received on running time-frequency resource.

The embodiment of the present invention provides a kind of reference signal launching technique, including：

Configure according to cell ID and by channel state information reference signals CSI-RS that intra-cell users equipment is configured Mark, launches cell specific reference signal CRS on running time-frequency resource.

The embodiment of the present invention provides a kind of reference signal receiving method, including：

User equipment is joined according to the cell ID of place cell and by the channel condition information that the user equipment is configured Signal CSI-RS configuration identifiers are examined, cell specific reference signal CRS is received on running time-frequency resource.

The embodiment of the present invention provides a kind of base station, including：

Channel generation module, for generating with cell ID and by intra-cell users equipment the channel condition information for configuring The corresponding control channel content of reference signal CSI-RS configuration identifier；

Mapping transmitter module, for according to the cell ID and the CSI-RS configuration identifiers, by the control channel Content map is launched on running time-frequency resource.

The embodiment of the present invention provides a kind of user equipment, including：

First generates receiver module, for the letter configured according to the cell ID of place cell and by the user equipment Channel state information reference signal CSI-RS configuration identifier, receives control channel content on running time-frequency resource.

The embodiment of the present invention provides a kind of base station again, including：

Transmitter module is generated, for the channel condition information ginseng configured according to cell ID and by intra-cell users equipment Signal CSI-RS configuration identifiers are examined, launches cell specific reference signal CRS sequence on running time-frequency resource.

The embodiment of the present invention provides a kind of user equipment again, including：

Second generates receiver module, for the letter configured according to the cell ID of place cell and by the user equipment Channel state information reference signal CSI-RS configuration identifier, receives cell specific reference signal CRS sequence on running time-frequency resource.

The control channel transmitting of the embodiment of the present invention and method of reseptance, reference signal transmitting and method of reseptance, base station and use Family equipment, base station generate corresponding with cell ID and CSI-RS configuration identifiers control channel content, and according to cell ID with CSI-RS will be sent to user equipment in the control channel content map for being generated to corresponding running time-frequency resource, it is ensured that each to control Interference between channel in the scope required by system, and according to cell ID and CSI-RS configuration identifiers on running time-frequency resource The CRS sequences of each control channel of transmitting aid demodulation so that the CRS between neighboring transmission point is orthogonal on time-frequency, it is ensured that UE in each transfer point coverage can accurately be received and unsuccessful demodulation goes out corresponding control information, realizes by generating Multiple control channels are increased in cell and to be capable of the UE numbers of real being serviced improving the purpose of the capacity of the control channel of cell Amount, improves the service performance of cell.

Description of the drawings

In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing Accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are these Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root Other accompanying drawings are obtained according to these accompanying drawings.

Fig. 1 is the flow chart of the control channel launching technique that the embodiment of the present invention one is provided；

The flow chart that Fig. 2A is directed to the first embodiment of PCFICH for the UE sides that one embodiment of the invention is provided；

The flow chart that Fig. 2 B are directed to second embodiment of PCFICH for the UE sides that one embodiment of the invention is provided；

The flow chart that Fig. 2 C are directed to the third embodiment of PCFICH for the UE sides that one embodiment of the invention is provided；

Fig. 3 A show the flow process of the base station side for the first embodiment of CRS sequences of one embodiment of the invention offer Figure；

Fig. 3 B show the flow process of the base station side for second embodiment of CRS sequences of one embodiment of the invention offer Figure；

The flow chart that Fig. 3 C are directed to the third embodiment of CRS sequences for the base station side that one embodiment of the invention is provided；

The flow chart that Fig. 4 A are directed to the first embodiment of CRS sequences for the UE sides that one embodiment of the invention is provided；

The flow chart that Fig. 4 B are directed to second embodiment of CRS sequences for the UE sides that one embodiment of the invention is provided；

The flow chart that Fig. 4 C are directed to the third embodiment of CRS sequences for the UE sides that one embodiment of the invention is provided；

A kind of structural representation of the base station that Fig. 5 A are provided for one embodiment of the invention；

Another structural representation for the base station that Fig. 5 B are provided for one embodiment of the invention；

The structural representation of the UE that Fig. 6 is provided for one embodiment of the invention；

The structural representation of the base station that Fig. 7 is provided for another embodiment of the present invention；

The structural representation of the UE that Fig. 8 is provided for another embodiment of the present invention.

Specific embodiment

To make purpose, technical scheme and the advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is The a part of embodiment of the present invention, rather than the embodiment of whole.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.

Fig. 1 is the flow chart of the control channel launching technique that the embodiment of the present invention one is provided.As shown in figure 1, the present embodiment Method include：

The channel state information reference signals configured with UE in cell ID (ID) and cell by step 101, generation (Channel State Information Reference Signals；Referred to as：CSI-RS) the corresponding control of configuration identifier Channel content.

In the LTE system configured using spaced antenna, a cell configuration has a RS and multiple RRH, each RRH It is direct-connected by the RS in high power capacity, the optical fiber and cell of low time delay, and each RRH and RS has identical cell ID (i.e. little Area ID).Wherein, RRH and RS belongs to the ingredient of base station.

Compared with traditional centralized antenna system, the cell coverage area of distributing antenna system is expanded significantly, respectively Geographically it is separated between individual transfer point, covers and also mutually separate, while have certain overlapping, for this purpose, in data channel On, base station configures different antenna ports to different UE by high-level signaling, makes the diverse access point (i.e. RS or RRH) can be same When provide service for different UE, that is, realize that same running time-frequency resource is repeatedly multiplexed, to obtain bigger cell splitting gain Purpose.In LTE system, the CSI-RS of the antenna port that CSI-RS configuration identifiers are adopted corresponding to the UE in this cell altogether, And each CSI-RS launches used running time-frequency resource.Under spaced antenna scene, base station is by configuring to different UE Corresponding CSI-RS marks, be connected to UE and the UE of implicit expression have in the transfer point of identical CSI-RS ports configuration.

Based on above-mentioned, in the present embodiment, base station is simultaneously according to cell ID and CSI-RS configuration identifiers, it is determined that generating control The quantity of channel content.For a cell, multiple CSI-RS configuration identifiers are configured with if the UE in the cell, it is raw Into control channel content corresponding with cell ID and CSI-RS configuration identifiers namely according to the CSI- configured by UE in cell Cell is further divided into Microcell by RS configuration identifiers, then generates a control channel content for each Microcell.Specifically , the CSI-RS configuration identifiers that cell ID and each cell of each cell that is stored with base station are configured by UE；Base station root first A cell is determined according to cell ID, then the UE in the cell is drawn according to the CSI-RS configuration identifiers configured by each UE in cell It is divided into multiple UE groups, wherein, the UE with identical CSI-RS configuration identifiers is divided into a UE group；Then, base station is with UE groups The UE in the cell being scheduled for unit, and a control channel content being generated for each UE group, such base station will be same One cell generates multiple control channel contents.Due to the quantity that each control channel content can dispatch UE be it is certain, therefore, By generating the capacity that comparatively multiple control channel contents increased the control channel of the cell, that is, increased the cell The quantity of middle caned UE for really obtaining servicing, improves the service performance of the cell.

Wherein, each control channel content mainly includes：Physical layer control format indicates channel (PhysicalControl Format Indicator Channel；Referred to as：PCFICH), physical layer descending control channel (Physical Downlink Control Channel；Referred to as：) and physical layer combining retransmission indicating channel (Physical Hybrid-ARQ PDCCH Indicator Channel；Referred to as：PHICH).

Step 102, according to cell ID and CSI-RS configuration identifiers, will be control channel content map enterprising to running time-frequency resource Row transmitting.

When base station is that a cell generates multiple control channel contents, due to covering for different transfer points (i.e. RS or RRH) There is overlapping region in lid scope, therefore, can there is certain interference between each control channel content, for this purpose, base station is sending control Mapping process is carried out to multiple control channel contents according to cell ID and CSI-RS configuration identifiers simultaneously before channel content processed, is made It is mutually orthogonal between different control channel contents, then launched on corresponding running time-frequency resource, to solve each control channel Problem is interfered between content, make interfering between each control channel content meet system requirements.

The control channel launching technique of the present embodiment, base station are same little according to cell ID and by the CSI-RS that UE is configured Area generates multiple control channel contents, and multiple control channel contents is carried out according to cell ID and by the CSI-RS that UE is configured Mapping is processed, and makes different control channel contents have orthogonality relation, is then launched on corresponding running time-frequency resource, had both been improve little The capacity of control channel in area, that is, improve the UE quantity that can really obtain servicing in cell, improve the service of cell Can, the interference problem between multiple control channel contents is solved again.The plurality of control channel can be belonging respectively to difference and connect Access point, for example, belongs to RS and RRH.

Wherein, when each control channel content includes PCFICH, base station is main to the process that control channel content is carried out Including：PCFICH is carried out scrambling, is modulated, layer mapping, precoding and packet mapping etc..Then step 102 according to cell ID and CSI-RS configuration identifiers, will be launched in control channel content map to running time-frequency resource specifically can using it is following any one Embodiment：

The first embodiment of base station side for PCFICH：Base station is according to cell ID and CSI-RS configuration identifiers pair PCFICH is scrambled, and the PCFICH after scrambling is mapped on running time-frequency resource and is launched.Specifically, base station is according to formula (1) PCFICH is scrambled, then the PCFICH after scrambling is modulated, layer mapping, precoding processing, precoding processing Sequence afterwards is 16 symbols, and the sequence after precoding processing is divided into four groups of subsequences further according to LTE standard, will be continuous 4 symbols are used as a quaternary ancestral, and are mapped on 4 resource elements (i.e. resource element groups) and launch.

Wherein, b is the symbol sebolic addressing that a sub- frame in is launched on PCFICH, for example：B (0) ..., b (31)；To add Symbol sebolic addressing after disturbing；C1 is random sequences, in LTE system, generally adopt length for 31 Gold sequence as stochastic ordering Row c1；Wherein, the initial value of random sequences c1 is determined according to cell ID and CSI-RS configuration identifiers；Mod is modular arithmetic Symbol.Specifically,Wherein i=0...31.Due to random sequences c1 initial value by cell ID and The determination of CSI-RS configuration identifiers, therefore for the PCFICH generated by different CSI-RS configuration identifiers in same cell, will be mutual It is orthogonal, reduce interfering between each PCFICH.

Specifically, base station can determine the initial value c of c1 according to formula (2) or formula (3) or formula (4)_1init。

Wherein, n_sFor the time slot position of a wireless frame in, in the present embodiment, the time slot position is PCFICH and is reflected The time slot position being mapped to.In the present embodiment, each radio frames includes 10 subframes, and each subframe has 2 time slots (slot) again Composition, each time slot are divided into 7 OFDMs (Orthogonal Frequency Division Multiplexing；Referred to as：OFDM) symbol.For cell ID；N_{CSI-RS-Config}For thisIt is corresponding in cell not The CSI-RS configuration identifiers configured with UE.As existing Rel10/11 user in cell, when having Rel8/9 user, due to Rel- again 8 or Rel-9 user's None- identified CSI-RS configuration identifiers, therefore, base station can adopt N_{CSI-RS-Config}Default value 0 come for Rel8/9 user generates control channel content.

Further illustrate, in the present embodiment, base station stochastic ordering according to cell ID and determined by CSI-RS configuration identifiers The initial value of row c1 is not limited to shown in above-mentioned formula (2) (3) or (4), such as except plus CSI-RS in above-mentioned each formula Outside configuration identifier, can also be and deduct CSI-RS configuration identifiers.As long as the initial value of random sequences c1 be with it is existing calculate with Based on the formula of the initial value of machine sequence c1, calculate after CSI-RSI configuration identifiers are considered, suitable for this enforcement Example.Position and mode that i.e. CSI-RS configuration identifiers occur in the formula of the existing initial value for calculating random sequences c1, this reality Apply example not limit.

From above-mentioned, in the present embodiment, the random sequences used when scrambling to each PCFICH is initial Value be while generated according to cell ID and CSI-RS configuration identifiers, no matter two PCFICH it is corresponding be cell ID it is identical and CSI-RS configuration identifiers are different, or corresponding are that cell ID is different and CSI-RS configuration identifiers are identical, two PCFICH correspondences Random sequences initial value it is different, can be by two after being scrambled to PCFICH using the random sequences of different values Interference randomization between PCFICH, so as to reduce interference.I.e. present embodiment before transmission, by symbol Number sequence carries out scrambling and processes the randomization realized to noise and interference, so as to solve because of each transfer point in same cell Coverage is mutually overlapped and causes the problem interfered between control channel.

In the present embodiment mode, during scrambling to PCFICH, make the interference between each PCFICH random Change, therefore, for subsequent processes can be implemented using prior art, i.e., for modulation, layer mapping, precoding and Packet mapping etc. is processed and can be found in prior art.For example：Prior art is according only to cell ID to the symbol sequence after precoding processing Row carry out being grouped mapping process, and the process present embodiment of implementing no longer is described in detail.

Second embodiment of the base station side for PCFICH：Base station is scrambled to PCFICH, after scrambling PCFICH is mapped on running time-frequency resource corresponding with cell ID and CSI-RS configuration identifiers and is launched.In this embodiment, Base station carries out scrambling process to the symbol sebolic addressing launched on PCFICH using prior art, i.e., determine according only to cell ID and scramble With the initial value of random sequences, and scrambling process is carried out to symbol sebolic addressing based on the initial value corresponding random sequences.In scrambling After process, base station can be also modulated to the symbol sebolic addressing after scrambling, layer maps, precoding processing, the sequence after acquisition process Row；Then packet is carried out to the sequence after precoding processing according to cell ID and CSI-RS configuration identifiers to map and launch.Specifically , it is assumed that scrambled, modulation, layer mapping, the sequence launched on PCFICH after precoding processing are y (i)=[y⁽⁰⁾(i)...y^(P-1)(i)]^T, wherein, y^(p)I () represents the signal on p-th antenna port, p=0...P-1, i=0...15；P is in cell The total quantity of antenna port.Sequence on each antenna port is divided into four groups of subsequences according to LTE standard by base station.Specifically with Illustrate as a example by signal on p-th antenna port, base station obtains four groups of subsequences according to formula (5).

z^(p)(j)=<y^(p)(4j), y^(p)(4j+1), y^(p)(4j+2), y^(p)(4j+3)> (5)

Wherein, j=0...3, then get z^(p)(0)、z^(p)(1)、z^(p)(2)、z^(p)(3) four groups of subsequences.Afterwards, base station Four groups of subsequences are respectively mapped to be launched in corresponding resource element groups according to formula (6).

Wherein, k_jFor the resource element groups that jth group subsequence is mapped to, j=0...3, i.e. k₀、k₁、k₂、k₃Respectively and z^(p) (0)、z^(p)(1)、z^(p)(2)、z^(p)(3) corresponding resource element groups.Wherein, For downlink resource blocks quantity.

By above-mentioned calculatingFormula understand that in this embodiment, base station is simultaneously according to cell ID and CSI-RS configuration marks Knowledge carries out mapping process to each PCFICH, and what is can generated step 101 is corresponding with cell ID and CSI-RS configuration identifiers PCFICH is respectively mapped to be launched in the resource element groups corresponding, different from cell ID and CSI-RS configuration identifiers, drop Interfering between low each PCFICH when launching multiple PCFICH simultaneously so that interfere satisfaction between each PCFICH System requirements, and then the UE quantity of the service of really can obtaining in cell is increased by launching multiple PCFICH, improve little The service performance in area.

The third embodiment of base station side for PCFICH：Base station is according to cell ID and CSI-RS configuration identifiers pair PCFICH is scrambled, and then, the PCFICH after scrambling is mapped to time-frequency corresponding with cell ID and CSI-RS configuration identifiers Launched in resource.In this embodiment, base station first according to cell ID and CSI-RS configuration identifiers to sending out in PCFICH The symbol sebolic addressing penetrated is scrambled, and the scrambling processes can be found in the description in the first embodiment, will not be described here.Scrambling The process such as after process, base station is modulated to the sequence after scrambling, layer mapping, precoding, these process can adopt existing Technical scheme, will not be described here.Then, base station is simultaneously according to cell ID and CSI-RS configuration identifiers to Jing after above-mentioned process Sequence carries out packet mapping and processes and launch.Specific packet mapping processes operation and can be found in retouching in second embodiment State, will not be described here.

In this embodiment, base station simultaneously adopts cell ID and CSI-RS configuration identifiers to the symbol launched in PCFICH Sequence carries out scrambling process and packet mapping is processed, and the interference between each PCFICH has been carried out randomization further, further Interference mutual when each PCFICH launches at the same time is reduced, and system requirements is met ensureing to interfere between each PCFICH Meanwhile, the capacity of control channel in cell is improve, the quantity of the UE for really obtaining servicing in cell is increased, is improve cell Service performance.

Further, when each control channel content includes PDCCH, the mapping that base station is carried out to control channel content is processed Mainly include：PDCCH is carried out scrambling, is modulated, layer mapping, precoding, packet and cyclic shift etc..Then step 102 basis Cell ID and CSI-RS configuration identifiers, will be launched in control channel content map to running time-frequency resource Any one embodiment：

The first embodiment of base station side for PDCCH：Base station is according to cell ID and CSI-RS configuration identifiers to PDCCH Scrambled, shifting processing is circulated to the PDCCH after scrambling, the result of cyclic shift process is carried out on running time-frequency resource Transmitting.In this embodiment, base station carries out scrambling process to PDCCH using formula (7).

Wherein, d is the symbol sebolic addressing that a sub- frame in is launched on PDCCH；For the symbol sebolic addressing after scrambling；C2 be with Machine sequence, in LTE system, generally adopt length for 31 Gold sequence as random sequences c2；Random sequences c2 it is initial Value is determined according to cell ID and CSI-RS configuration identifiers.Specifically,Wherein i= 0...31.As the initial value of random sequences c2 is determined by cell ID and CSI-RS configuration identifiers, therefore in same cell The PDCCH after random sequences scrambling, the randomization that mutual interference will become, so as to improve are generated by different CSI-RS configuration identifiers Each PDCCH reception performance.

Specifically, base station can determine the initial value c of random sequences c2 according to equation below (8) or formula (9)_2init。

Wherein, n_sFor the time slot position of a wireless frame in, in the present embodiment, the time slot position is PDCCH and is reflected The time slot position being mapped to.

In the same manner, in the present embodiment, base station is according to cell ID and random sequences c2 determined by CSI-RS configuration identifiers Initial value be not limited to shown in above-mentioned formula (8) or (9), such as except plus CSI-RS configuration identifiers in above-mentioned each formula Outside, can also be and deduct CSI-RS configuration identifiers.As long as the initial value of random sequences c2 is with existing calculating random sequences c2 Initial value formula based on, calculate after CSI-RSI configuration identifiers are considered, suitable for the present embodiment.I.e. Position and mode that CSI-RS configuration identifiers occur in the formula of the existing initial value for calculating random sequences c2, the present embodiment are equal Do not limit.

Wherein, in this embodiment, base station further the sequence on PDCCH is modulated using prior art, layer Mapping, packet and cyclic shift etc. are processed, and concrete processing procedure is no longer described in detail.

In the present embodiment, base station carries out scrambling process to PDCCH according to cell ID and CSI-RS configuration identifiers simultaneously Interference between each PDCCH and noise randomization is carried out into, interfering between each PDCCH has been reduced, so as to solve Cause the problem interfered between control channel because the coverage of each transfer point in same cell is mutually overlapped.

Second embodiment of the base station side for PDCCH：Base station is scrambled to PDCCH, according to cell ID and CSI- RS configuration identifiers are circulated shifting processing to the PDCCH after scrambling, will be the result of cyclic shift process enterprising in running time-frequency resource Row transmitting.In this embodiment, base station carries out adding to the symbol sebolic addressing launched on PDCCH initially with prior art manner Process is disturbed, that is, refers to that base station generates the initial value of the used random sequences of scrambling according only to cell ID, then using the initial value Corresponding random sequences carry out scrambling process to symbol sebolic addressing.After scrambling is processed, base station is carried out to the symbol sebolic addressing after scrambling After modulation, layer mapping, precoding and packet transaction, several subsequences are obtained.Wherein, length of the quantity of subsequence regarding PDCCH Depending on degree.In the present embodiment, for interfering between each PDCCH of further randomization, to reduce between each PDCCH Interference, after each subsequence is obtained, base station is further simultaneously according to cell ID and CSI-RS configuration identifiers to each subsequence It is circulated shifting processing；Then the result of cyclic shift process is launched on the running time-frequency resource distributed for which.

Specifically, by taking the signal on p-th antenna port as an example, the cyclic shift process in present embodiment is carried out in detail Describe in detail bright.If assuming what the modulated signal on p-th antenna port, layer mapping, precoding and packet mapping were obtained after processing A dry subsequence is respectively：w^(p)..., w (0)^(p)(M_quad- 1), wherein, M_quadFor signal subsequence on p-th antenna port Number.Then base station is circulated shifting processing to each subsequence with specific reference to formula (10).

Wherein,For i-th group of signal sequence after cyclic shift on p-th antenna port, i=0...M_quad-1。

From above-mentioned formula (10), base station is circulated to PDCCH according to cell ID and CSI-RS configuration identifiers simultaneously Shifting processing, due to the corresponding CSI-RS configuration identifiers differences of different PDCCH in same cell, therefore, cyclic shift process Result will obtain multiple different PDCCH, and different PDCCH will be assigned in different resource element groups, will be each The corresponding running time-frequency resources of PDCCH have carried out randomization, reduce the interference between each PDCCH, and then realize by multiple PDCCH improves the purpose of the capacity of control channel in cell, increased the UE quantity that can really obtain servicing in cell, improves The service quality of cell, is adapted with spaced antenna configuration mode.

The third embodiment of base station side for PDCCH：Base station is according to cell ID and CSI-RS configuration identifiers to PDCCH Scrambled, then, shifting processing is circulated to the PDCCH after scrambling according to cell ID and CSI-RS configuration identifiers, will be followed The result of ring shifting processing is launched on running time-frequency resource.In this embodiment, base station first simultaneously according to cell ID and CSI-RS configuration identifiers carry out scrambling process to the signal sequence launched on PDCCH, to realize the signal sequence on each PDCCH Interference and noise between row carries out randomized purpose, reduces the interference between each PDCCH.Wherein, scrambling processing procedure can Referring to the description in the first embodiment, will not be described here.After scrambling is processed, base station is using prior art to scrambling Signal sequence after process is modulated, layer mapping, precoding and packet etc. are processed, and obtains each subsequence.Afterwards, base station is same When displacement is circulated to each subsequence according to cell ID and CSI-RS, each subsequence is assigned randomly to into different resource elements On plain group, the further randomization to the interference between each PDCCH is realized, the interference between each PDCCH is further reduced.Its In, cyclic shift implements the description that process is can be found in above-mentioned second embodiment, will not be described here.

In the present embodiment, base station simultaneously according to cell ID and CSI-RS configuration identifiers each PDCCH is carried out scrambling and Cyclic shift process, the interference between each PDCCH as maximum as possible randomization is reduced dry between each PDCCH Disturb, it is achieved thereby that generating multiple control channels to improve the capacity of control channel in cell for same cell, increased cell The interior UE quantity that really can obtain servicing, improves the service quality of cell, has adapted to sending out for spaced antenna configuration mode Exhibition.

Further, when each control channel content includes PHICH, process of the base station to control channel content is mainly wrapped Include：PHICH is carried out scrambling, is modulated, layer mapping, esource impact etc..Then step 102 is according to cell ID and CSI-RS configuration marks Know, will be launched in control channel content map to running time-frequency resource.

The first embodiment of base station side for PHICH：Base station is according to cell ID and CSI-RS configuration identifiers to PHICH Scrambled, the PHICH after scrambling is mapped on running time-frequency resource and is launched.In this embodiment, base station is according to formula (11) scrambling process is carried out to PHICH.

Wherein, e be spectrum-spreading and scrambling after symbol sebolic addressing, z be scrambling after PHICH on symbol sebolic addressing, i=0 ..., M_symb- 1,M_sFor the symbolic number of z,For the spreading factor of PHICH, when adopting regular circulation Prefix (Cyclic Prefix；Referred to as：When CP),For 4, when using extension CP,For 2.For an orthogonal sequence.C3 is random sequences, in LTE system, generally using length Spend for 31 Gold sequence as random sequences c3；Wherein, the initial value of random sequences c3 is matched somebody with somebody according to cell ID and CSI-RS Put what mark was determined.

Specifically, base station can determine the initial value c of random sequences c3 using formula (12)_3init。

Wherein, n_sFor the time slot position of a wireless frame in, in the present embodiment, the time slot position is PHICH and is reflected The time slot position being mapped to.

In the present embodiment, base station according to cell ID and random sequences c3 determined by CSI-RS configuration identifiers it is initial Value is not limited to shown in above-mentioned formula (12), such as in above-mentioned formula in addition to plus CSI-RS configuration identifiers, can be with It is to deduct CSI-RS configuration identifiers.As long as the initial value of random sequences c3 is with the public affairs of the existing initial value for calculating random sequences c3 Based on formula, calculate after CSI-RSI configuration identifiers are considered, suitable for the present embodiment.That is CSI-RS configuration identifiers The position occurred in the formula of the existing initial value for calculating random sequences c3 and mode, the present embodiment are not limited.

Wherein, in this embodiment, base station further the sequence on PHICH is modulated using prior art, layer The process such as mapping, esource impact, concrete processing procedure are no longer described in detail.

In the present embodiment, base station carries out scrambling process to PHICH according to cell ID and CSI-RS configuration identifiers simultaneously Interference between each PHICH and noise randomization is carried out into, interfering between each PHICH has been reduced, so as to solve Cause the problem interfered between control channel because the coverage of each transfer point in same cell is mutually overlapped.

Second embodiment of the base station side for PHICH：Base station carries out spectrum-spreading and scrambling to PHICH, after spectrum-spreading and scrambling PHICH be mapped on running time-frequency resource corresponding with cell ID and CSI-RS configuration identifiers and launched.In this embodiment, Base station is spread to the signal sequence launched on PHICH initially with prior art and scrambling is processed；Then spread spectrum is added Signal sequence after disturbing be modulated with layer mapping etc. process.Afterwards, base station according to formula (13) by the sequence Jing after above-mentioned process Row carry out esource impact, by each PHICH be mapped to corresponding running time-frequency resource (when generating PHICH cell ID that uses and The corresponding running time-frequency resource of CSI-RS configuration identifiers) on launched.

Wherein,For on the ofdm symbols, all positions being not allocated in the resource element groups of PCFICH；n₁For the 1st In individual OFDM symbol, the number of the resource element groups of PCFICH is not yet assigned to；For l '_jIn individual OFDM symbol, it is not yet assigned to The number of the resource element groups of PCFICH；Within the normal PHICH persistent period, for all subframe types, the l '_jFor 0； In the extension PHICH persistent period, for MBSFN sub-frame, shouldWhen extension PHICH continues In, for 1/6 work song frame in frame structure type 2, shouldFor other situations, should l′_jAs j.Wherein, m ' is intermediate variables of the PHICH when esource impact is made, and which per circulation primary, increases by 1 from the beginning of 0.

From above-mentioned formula (13), in this embodiment, base station is simultaneously according to cell ID and CSI-RS configuration identifiers Mapping process is carried out to each PHICH, what is can generated step 101 is corresponding with different districts ID and CSI-RS configuration identifier PHICH is respectively mapped to be launched in different resource element groups, reduce and meanwhile when launching multiple PHICH each PHICH it Between interfere so that interfering between each PHICH meets system requirements, and then is increased by launching multiple PHICH The UE quantity for servicing can be really obtained in cell, the service performance of cell is improve.

The third embodiment of base station side for PHICH：Base station is according to cell ID and CSI-RS configuration identifiers to PHICH Spectrum-spreading and scrambling is carried out, then, the PHICH after spectrum-spreading and scrambling time-frequency corresponding with cell ID and CSI-RS configuration identifiers is mapped to into Launched in resource.Specifically, base station carries out spreading to PHICH according to cell ID and CSI-RS configuration identifiers simultaneously first and adds Process is disturbed, concrete processing procedure can be found in the description in the first embodiment, will not be described here.Afterwards, base station can be adopted The sequence after spectrum-spreading and scrambling is modulated with prior art and layer mapping is processed；Then, base station simultaneously according to cell ID and CSI-RS configuration identifiers carry out esource impact and launch to the sequence after above-mentioned process.Concrete esource impact processing procedure can Referring to the description in above-mentioned second embodiment, will not be described here.

In the present embodiment, base station is simultaneously according to cell ID and CSI-RS configuration identifiers to the signal launched on PHICH Sequence carries out scrambling and esource impact is processed, and the interference between each PHICH as maximum as possible randomization is reduced each Interference between PHICH, it is achieved thereby that generating multiple control channels to improve the appearance of control channel in cell for same cell Amount, increased the UE quantity that can really obtain servicing in cell, improves the service quality of cell, adapted to spaced antenna The development of configuration mode.

Further illustrate, control channel content can include PCFICH, PDCCH and PHICH simultaneously, and to each control letter Road process can adopt above-mentioned embodiment provide any one processing mode, and the processing mode between each control channel that This is unrestricted.

Further, in the various embodiments described above or embodiment are implemented, step 101 be base station according to cell ID and Before CSI-RS configuration identifiers generate multiple control channel contents, also include：Step 100, acquisition CSI-RS configuration identifiers.Its In, a kind of mode of acquisition CSI-RS configuration identifiers is：The CSI-RS configuration identifiers that base station direct access is pre-configured with.For example： The UE under the Rel-10/11 systems of CSI-RS ports is not configured for the UE under Rel-8/9 systems and also, base station is being controlled When channel processed is produced with esource impact, using the default value for being pre-configured with CSI-RS, for example, 0 is used uniformly across, then base station is while root According to cell ID and acquiescence CSI-RS configuration identifiers generate control channel content and control channel content is scrambled or mapping at Reason.

Another kind obtains the mode of CSI-RS configuration identifiers：Base station receives the CSI-RS receiving powers that UE is reported, and root Determine to the corresponding CSI-RS configuration identifiers in CSI-RS ports of UE distribution according to the CSI-RS receiving powers for receiving；Base station passes through Wireless heterogeneous networks (Radio Resource Control；Referred to as：RRC) CSI-RS configuration identifiers are sent to UE by signaling. For example：For the UE under Rel-10/11 systems, base station reports the receiving power of CSI-RS by configuring this part UE, can be true Fixed corresponding UE optimal transfer point, best transmission point corresponding CSI-RS ports are notified corresponding UE by RRC signaling by base station. During UE is notified, base station is controlled channel using the CSI-RS configuration identifiers (for example with 0) of cell ID and acquiescence Generation and esource impact；After the process for notifying UE terminates, base station starts using cell ID and the corresponding CSI-RS of each UE Configuration identifier combines the generation and esource impact for being controlled channel.

It is adapted with the control channel launching technique that above-described embodiment is provided, one embodiment of the invention provides a kind of control letter Road method of reseptance, the method include：Step 201, UE match somebody with somebody according to the CSI-RS configured by cell ID and UE of place cell itself Mark is put, control channel content is received on running time-frequency resource.Specifically, when base station is scheduled to each UE according to cell ID and CSI-RS configuration identifiers generate multiple control channel contents, and according to cell ID and CSI-RS configuration identifiers by multiple control channels Content carries out mapping process, and after launching on corresponding running time-frequency resource, UE prepares control letter is received on corresponding running time-frequency resource Road content.Due to base station according to cell ID and CSI-RS configuration identifiers by each control channel content map to corresponding running time-frequency resource On, then for UE sides, in order to guarantee that control channel content is received on correct running time-frequency resource, it is also desirable to be based on Cell ID and the CSI-RS for itself being configured calculate corresponding running time-frequency resource itself, and connect on corresponding running time-frequency resource itself Receive control channel content.

The control channel method of reseptance of the present embodiment, the control channel launching technique provided with above-described embodiment are engaged, UE receives control channel according to cell ID and the CSI-RS configuration identifiers for itself being configured on corresponding running time-frequency resource, is ensureing each While interfering between control channel meets system requirements, realize by multiple control channels to improve cell internal control The capacity of channel processed, increases the UE quantity that can really obtain servicing in cell, improves the purpose of the service quality of cell.

Wherein, when control channel content includes PCFICH, step 201 is UE according to cell ID of its place cell and sheet The CSI-RS configuration identifiers configured by body, on corresponding running time-frequency resource receive control channel content and can adopt following any one Plant embodiment to realize.

The flow chart that Fig. 2A is directed to the first embodiment of PCFICH for the UE sides that one embodiment of the invention is provided.As schemed Shown in 2A, present embodiment includes：Step 201a, UE generates esource impact information according to cell ID of place cell；Step 202a, UE receive PCFICH on the corresponding running time-frequency resource of esource impact information；Step 203a, UE according to cell ID and itself CSI-RS configuration identifiers are descrambled to PCFICH.In this embodiment, UE adopts prior art according to the little of place cell Area ID generates esource impact information, and detects the corresponding running time-frequency resource of esource impact information to receive what is transmitted on the running time-frequency resource PCFICH；Then, while being descrambled to PCFICH according to cell ID and the CSI-RS configuration identifiers of itself.The embodiment with Base station side is adapted for the first embodiment of PCFICH, and the descrambling procedure is the anti-of the scrambling processes shown in formula (1) Process, scrambling processes of the those skilled in the art according to formula (1) can be with beyond all doubt release present embodiments Descrambling procedure, therefore will not be described here.

The flow chart that Fig. 2 B are directed to second embodiment of PCFICH for the UE sides that one embodiment of the invention is provided.As schemed Shown in 2B, present embodiment includes：Step 201b, UE generates resource and reflects according to cell ID and the CSI-RS configuration identifiers of itself Penetrate information；Step 202b, UE receives PCFICH on the corresponding running time-frequency resource of esource impact information；Step 203b, UE is according to little Area ID is descrambled to PCFICH.Second embodiment of the embodiment with base station side for PCFICH is adapted, due to Base station simultaneously carries out esource impact according to cell ID and CSI-RS configuration identifiers to PCFICH, thus UE simultaneously according to cell ID with CSI-RS configuration identifiers generate esource impact information, by detecting the corresponding running time-frequency resource of esource impact information to receive PCFICH；As base station is scrambled to PCFICH using prior art, therefore in the present embodiment mode, UE receives PCFICH The PCFICH for receiving is descrambled using prior art afterwards.Wherein, UE lateral roots are according to cell ID and CSI-RS configuration identifiers The process for generating esource impact information is the inverse process of esource impact process shown in formula (6), and those skilled in the art are according to public affairs Esource impact process shown in formula (6) can generate the process of esource impact information with beyond all doubt release present embodiment, therefore Will not be described here.

The flow chart that Fig. 2 C are directed to the third embodiment of PCFICH for the UE sides that one embodiment of the invention is provided.As schemed Shown in 2C, present embodiment includes：Cell ID and CSI-RS configuration identifier itself of step 201c, UE according to place cell, Generate esource impact information；Step 202c, UE receives PCFICH on the corresponding running time-frequency resource of esource impact information；Step 203c, UE are descrambled to PCFICH according to cell ID and the CSI-RS configuration identifiers of itself of place cell.The embodiment It is adapted with the third embodiment of base station side for PCFICH, as base station is simultaneously according to cell ID and CSI-RS configuration marks Knowledge carries out esource impact to PCFICH, therefore UE generates esource impact information with CSI-RS configuration identifiers according to cell ID simultaneously, leads to Cross and detect the corresponding running time-frequency resource of esource impact information to receive PCFICH；As base station is simultaneously according to cell ID and CSI-RS Configuration identifier is scrambled to PCFICH, therefore in the present embodiment mode, and UE is received after PCFICH also while according to place Cell ID of cell is descrambled to the PCFICH for receiving with CSI-RS configuration identifiers.In present embodiment, UE is according to cell ID The process that esource impact information is generated with the CSI-RS configuration identifiers of itself is the anti-mistake of the esource impact process shown in formula (6) Journey；The process descrambled to PCFICH according to cell ID and CSI-RS configuration identifiers simultaneously by UE is scrambled shown in formula (1) The inverse process of journey, therefore will not be described here.

The control channel method of reseptance of the respective embodiments described above, the control channel launching technique provided with above-mentioned embodiment It is engaged, UE receives control channel according to cell ID and the CSI-RS configuration identifiers for itself being configured on corresponding running time-frequency resource, While ensureing that interfering between each control channel meets system requirements, realize by multiple control channels to improve The capacity of control channel in cell, increases the UE quantity that can really obtain servicing in cell, improves the service quality of cell Purpose.

Further, when each control channel content includes PDCCH, step 201 is cells of the UE according to its place cell ID and the CSI-RS configuration identifiers for itself being configured, on running time-frequency resource receive control channel content and can adopt following any one Plant embodiment to realize.

The first embodiment of UE sides for PDCCH：UE generates esource impact information according to cell ID, in esource impact PDCCH is received on the corresponding running time-frequency resource of information, and PDCCH is solved according to cell ID and the CSI-RS configuration identifiers of itself Disturb.The first embodiment of the embodiment with base station side for PDCCH is adapted, as base station i.e. only adopts prior art According to cell ID by the PDCCH cyclic shifts after scrambling to corresponding running time-frequency resource, therefore UE is also adopted by prior art i.e. only root Esource impact information is generated according to cell ID, and PDCCH is received on the corresponding running time-frequency resource of esource impact information.Due to base station it is same When PDCCH is scrambled according to cell ID and CSI-RS configuration identifiers, therefore UE after PDCCH is received while according to cell ID PDCCH is descrambled with CSI-RS configuration identifiers.Wherein, the descrambling procedure in present embodiment is scrambling shown in formula (7) The inverse process of process, scrambling processes of the those skilled in the art according to formula (7) can realize the descrambling of present embodiment Process, therefore the descrambling procedure is no longer described in detail.

Second embodiment of the UE sides for PDCCH：UE generates resource and reflects according to cell ID and CSI-RS configuration identifiers Information is penetrated, and PDCCH is received on the corresponding running time-frequency resource of esource impact information, and PDCCH is descrambled.The embodiment with Base station side is adapted for second embodiment of PDCCH, as base station is simultaneously according to cell ID and CSI-RS configuration identifiers By in the PDCCH cyclic shifts after scrambling to corresponding running time-frequency resource, therefore UE also cell ID and the lifes of CSI-RS configuration identifiers simultaneously Into esource impact information, and detect the corresponding running time-frequency resource of esource impact information to receive PDCCH.As base station adopts existing skill Art carries out scrambling process according only to cell ID to PDCCH, therefore UE is also carried out to the PDCCH for receiving according to cell ID accordingly Scramble process.Wherein, in present embodiment, UE generates the process of esource impact information according to cell ID and CSI-RS configuration identifiers It is the inverse process of the cyclic shift process shown in formula (10), cyclic shift of the those skilled in the art according to formula (10) Process with the skimble-skamble process for realizing the generation esource impact information, therefore can will not be described here.

The third embodiment of UE sides for PDCCH：UE is generated according to cell ID and the CSI-RS configuration identifiers of itself Esource impact information, receives PDCCH on the corresponding running time-frequency resource of esource impact information, and is configured according to cell ID and CSI-RS Mark is descrambled to PDCCH.The third embodiment of the embodiment with base station side for PDCCH is adapted, due to base Stand while being scrambled to PDCCH according to cell ID and CSI-RS configuration identifiers, and the PDCCH after scrambling is circulated displacement To on corresponding running time-frequency resource, therefore UE also generates esource impact information according to cell ID and CSI-RS configuration identifiers simultaneously, in money PDCCH is received on the corresponding running time-frequency resource of source map information, then simultaneously according to cell ID and CSI-RS configuration identifiers to receiving To PDCCH descrambled.In present embodiment, UE generates esource impact information according to cell ID and CSI-RS configuration identifiers Process is the inverse process of the cyclic shift process shown in formula (10), therefore the process is no longer described in detail；Solution in present embodiment The process of disturbing is the inverse process of scrambling processes shown in formula (7), therefore the descrambling procedure is no longer described in detail.

Further, when each control channel content includes PHICH, step 201 is UE according to the little of its place cell Area ID and the CSI-RS configuration identifiers for itself being configured, receive on corresponding running time-frequency resource control channel content can adopt with Lower any one embodiment is realized.

The first embodiment of UE sides for PHICH：UE generates esource impact information according to cell ID, in esource impact PHICH is received on the corresponding running time-frequency resource of information, and PHICH is descrambled according to cell ID and CSI-RS configuration identifiers.Should Embodiment and base station side are adapted for the first embodiment of PHICH, due to base station using prior art i.e. according only to Cell ID is mapped to the PHICH after scrambling on corresponding running time-frequency resource, therefore UE also generates esource impact letter according only to cell ID Breath, and detect the corresponding running time-frequency resource of esource impact information to receive PHICH.As base station is simultaneously according to cell ID and CSI-RS Configuration identifier is scrambled to PHICH, therefore UE also enters to the PHICH for receiving according to cell ID and CSI-RS configuration identifiers simultaneously Row descrambling.Descrambling procedure in present embodiment is the inverse process of scrambling processes shown in formula (11), those skilled in the art's root Can be with the skimble-skamble descrambling procedure deduced in present embodiment according to the scrambling processes shown in formula (11), therefore here is no longer detailed State the descrambling procedure.

Second embodiment of the UE sides for PHICH：UE is generated according to cell ID and the CSI-RS configuration identifiers of itself Esource impact information, on the corresponding running time-frequency resource of esource impact information receives PHICH, and PHICH is descrambled.The enforcement Second embodiment of the mode with base station side for PHICH is adapted, as base station is matched somebody with somebody according to cell ID and CSI-RS simultaneously Put mark the PHICH after scrambling is mapped on corresponding running time-frequency resource, thus UE also simultaneously according to cell ID of place cell and The CSI-RS configuration identifiers of itself generate esource impact information, and detect the corresponding running time-frequency resource of esource impact information to receive PHICH.As base station is scrambled to PHICH according only to cell ID using prior art, therefore UE is also according only to cell ID pair The PHICH for receiving is descrambled.The process that esource impact information is generated in present embodiment is that resource shown in formula (13) is reflected The inverse process of process is penetrated, those skilled in the art can realize esource impact information is generated in present embodiment according to formula (13) Process, therefore in detail the esource impact information generating process is no longer described in detail.

The third embodiment of UE sides for PHICH：UE is generated according to cell ID and the CSI-RS configuration identifiers of itself Esource impact information, receives PHICH on the corresponding running time-frequency resource of esource impact information, and is configured according to cell ID and CSI-RS Mark is descrambled to PHICH.The third embodiment of the embodiment with base station side for PHICH is adapted, due to base Stand while spread to PHICH and scrambled according to cell ID and CSI-RS configuration identifiers, and while according to cell ID and CSI- RS configuration identifiers are mapped to the PHICH after spectrum-spreading and scrambling on corresponding running time-frequency resource, thus UE also simultaneously according to cell ID and CSI-RS configuration identifiers generate esource impact information, and detect the corresponding running time-frequency resource of esource impact information to receive PHICH；Together When the PHICH for receiving is descrambled and is de-spread according to cell ID and CSI-RS configuration identifiers.Money is generated in present embodiment The process of source map information is the inverse process of esource impact process shown in formula (13), descrambling in present embodiment and is de-spread Journey is the inverse process of spread spectrum and descrambling procedure shown in formula (11).

In the embodiment or embodiment of above-mentioned control channel method of reseptance, step 201 be UE according to cell ID and CSI-RS configuration identifiers, also include before receiving control channel content on corresponding running time-frequency resource：Step 200, UE acquisitions itself CSI-RS configuration identifiers.A kind of mode of acquisition CSI-RS configuration identifiers is：The CSI-RS that UE direct access is pre-configured with matches somebody with somebody Put mark.That is UE directly according to cell ID and the CSI-RS configuration identifiers of acquiescence, receives control channel on corresponding running time-frequency resource Content.The embodiment is generally used for Rel-8/9 systems and does not also configure the UE under the Rel-10/11 systems of CSI-RS ports.

Another kind obtains the mode of CSI-RS：Configurations of the UE according to base station, reports CSI-RS receiving powers to base station, so Afterwards, the RRC signaling that base station is returned according to CSI-RS receiving powers is received, CSI-RS configuration identifiers is obtained from the RRC signaling.Tool Body, after base station receives CSI-RS receiving powers, determine the best transmission point of the UE, then by the transfer point corresponding CSI- RS port assignments give the UE, and the CSI-RS ports corresponding CSI-RS configuration identifiers are sent to UE by RRC signaling.Its In, receive before RRC instructs and obtain CSI-RS configuration identifiers in UE, provided using the default value of CSI-RS configuration identifiers The generation of source map information and scramble process, after receiving RRC and instructing and obtain CSI-RS configuration identifiers, using what is obtained CSI-RS configuration identifiers carry out the generation of esource impact information and scramble process.The embodiment is generally used for Rel-10/11 systems UE under system.

Wherein, corresponding control channel content can be had correctly received in order to ensure above-mentioned UE, one embodiment of the invention is carried A kind of reference signal launching technique, the method has been supplied to include：Step 301, configure according to cell ID and by UE in cell CSI-RS configuration identifiers, launch cell specific reference signal CRS sequence on running time-frequency resource.The CRS sequences are to aid in UE to connect Receive and demodulate PCFICH.

As base station generates PCFICH according to cell ID and CSI-RS configuration identifiers simultaneously, therefore, for same cell , can there are multiple PCFICH in speech.And in LTE system, to the demodulation of control channel PCFICH be based on CRS sequences, therefore, The base station of the present embodiment generate multiple PCFICH while, while each will be demodulated according to cell ID and CSI-RS configuration identifiers The CRS sequences of PCFICH are also launched when PCFICH (i.e. in emission control channel content) is launched, to be guaranteed at not Corresponding PCFICH can accurately be received with the different UE in transfer point coverage.

The process of Base Transmitter CRS mainly generates CRS sequences, and by CRS sequence cyclic shifts to corresponding running time-frequency resource On the process launched.Based on this, step 301 can be realized using following any one embodiment.

Fig. 3 A show the flow process of the base station side for the first embodiment of CRS sequences of one embodiment of the invention offer Figure.As shown in Figure 3A, present embodiment includes：Step 301a, base station generate CRS according to cell ID and CSI-RS configuration identifiers Sequence；Step 302a, base station are circulated shifting processing to CRS sequences, by the result of cyclic shift process on running time-frequency resource Launched.In this embodiment, base station generates CRS sequences according to cell ID and CSI-RS configuration identifiers simultaneously, wherein, it is right There to be multiple CRS sequences for same cell；Then shifting is circulated to the CRS sequences for being generated using prior art Position, will be launched on CRS sequence mappings to corresponding running time-frequency resource.Specifically, base station can be generated according to formula (14) CRS sequences.

Wherein,For n-th_sCRS sequences on individual time slot；C4 is random sequences, and the initial value of random sequences c4 is basis What cell ID and CSI-RS configuration identifiers were determined, For maximum downlink bandwidth, Maximum resource number of blocks i.e. on downlink.

Wherein, base station can specifically adopt formula (15), formula (16) or formula (17) to determine the first of random sequences c4 Initial value c_4init。

Wherein, N_cpFor Cyclic Prefix factor of influence, when using CP, N_cpFor 1, when using extension CP, N_cpFor 0.

In the present embodiment, base station according to cell ID and random sequences c4 determined by CSI-RS configuration identifiers it is initial Value is not limited to shown in above-mentioned formula (15), (16) or (17), such as except plus CSI-RS configuration marks in above-mentioned each formula Outside knowledge, can also be and deduct CSI-RS configuration identifiers.As long as the initial value of random sequences c4 is with existing calculating random sequences Based on the formula of the initial value of c4, calculate after CSI-RSI configuration identifiers are considered, suitable for the present embodiment.I.e. Position and mode that CSI-RS configuration identifiers occur in the formula of the existing initial value for calculating random sequences c4, the present embodiment are equal Do not limit.

Fig. 3 B show the flow process of the base station side for second embodiment of CRS sequences of one embodiment of the invention offer Figure.As shown in Figure 3 B, present embodiment includes：Step 301b, base station generate CRS sequences；In this step, base station is using existing Technology is the CRS sequence quantity that a cell is generated i.e. according only to cell ID this parameter determination, and also as one cell is generated One CRS sequence.Step 302b, base station are circulated shifting processing to CRS sequences according to cell ID and CSI-RS configuration identifiers, The result of cyclic shift process is launched on running time-frequency resource.In this embodiment, base station can adopt prior art To generate CRS sequences, i.e., it is that multiple PCFICH generate same CRS sequences according only to cell ID, then simultaneously according to cell ID Displacement is circulated to CRS sequences with CSI-RS configuration identifiers, the CRS sequences after cyclic shift process will be mutually orthogonal, and not Same CRS sequences will be assigned on different running time-frequency resources, thus by each PCFICH corresponding CRS sequences corresponding to not Same running time-frequency resource, realizes, by the interference randomization between each PCFICH corresponding CRS sequences, reducing each PCFICH corresponding Interference between CRS sequences, it is ensured that UE can be properly received corresponding CRS sequences so as to unsuccessful demodulation PCFICH.

Specifically, base station can be circulated displacement to CRS sequences according to formula (18).

K=6m+ (v+v_shift)mod6 (18)

Wherein, k is position of the CRS sequences on frequency domain after cyclic shift；V is variable, With it is above-mentionedSymbol it is corresponding.

For example：By taking pth (p=0,1,2,3) the individual antenna port of the cell with 4 antenna ports as an example, p-th antenna On port n-th_sSymbol on individual time slot after cyclic shiftWherein, shown in footnote k such as formula (18).If p =0 or 1, l be 0 orIf p=2 or 3, l are 1；Be formulated as And

From above-mentioned formula, base station is circulated shifting to CRS sequences according to cell ID and CSI-RS configuration identifiers simultaneously Position, so can will launch on same CRS sequence mappings to different running time-frequency resources, make CRS sequences with multiple PCFICH one by one Correspondence, is that UE correctly demodulates corresponding PCFICH and lays the first stone.

The flow chart that Fig. 3 C are directed to the third embodiment of CRS sequences for the base station side that one embodiment of the invention is provided. As shown in Figure 3 C, present embodiment includes：Step 301c, base station generate CRS sequences according to cell ID and CSI-RS configuration identifiers Row；Step 302c, base station are processed to CRS sequence cyclic shifts according to cell ID and CSI-RS configuration identifiers, at cyclic shift The result of reason is launched on running time-frequency resource.In this embodiment, base station is simultaneously according to cell ID and CSI-RS configuration marks Know generate it is multiple with the one-to-one CRS sequences of PCFICH, and while according to cell ID and CSI-RS configuration identifiers by multiple CRS Sequence is respectively mapped to be launched on different running time-frequency resources.In the present embodiment, base station can be respectively adopted formula (14) and formula (18) is generating CRS sequences and be circulated displacement to CRS sequences, due to according to different districts ID and CSI-RS The corresponding different running time-frequency resource of the result of configuration identifier cyclic shift, therefore, it can different CRS sequences in different time-frequencies Transmitted on resources is gone out.

Present embodiment is by generating multiple CRS sequences and multiple CRS sequences being respectively mapped to different running time-frequency resources On, further by the interference randomization between the CRS sequences of demodulation each PCFICH, reduce the interference between each CRS sequences.

The respective embodiments described above, or multiple with the one-to-one CRS sequences of PCFICH by generating, or by by CRS Cyclic shift is launched on different running time-frequency resources, or while generates multiple CRS sequences and circulate multiple CRS sequences respectively It is displaced on different running time-frequency resources and launches, it is ensured that the different UE in different transfer point coverages can be properly received and demodulate Go out PCFICH, be to be laid the foundation by generating capacity of multiple control channels to improve the control channel of same cell.

It is adapted with the embodiment of above-mentioned reference signal launching technique, the embodiment of the present invention provides a kind of reference signal and receives Method, the method include：The CSI-RS configuration marks configured according to the cell ID and UE of place cell itself by step 401, UE Know, CRS sequences are received on running time-frequency resource.

UE side joints are received the process of CRS sequences and mainly generate esource impact information including UE, corresponding in esource impact information CRS sequences are received on running time-frequency resource, and is generated with reference to CRS sequences, then by reference to CRS sequences and the CRS sequences for receiving Carry out the process of channel estimation.Based on this, 401 can be realized using following any one embodiment the step of the present embodiment.

The flow chart that Fig. 4 A are directed to the first embodiment of CRS sequences for the UE sides that one embodiment of the invention is provided.Such as Shown in Fig. 4 A, present embodiment includes：Cell ID and CSI-RS configuration identifier itself of step 401a, UE according to place cell Generate with reference to CRS sequences；Step 402a, UE generates esource impact information according to cell ID；Step 403a, UE is believed in esource impact Cease reception CRS sequences on corresponding running time-frequency resource；Step 404a, UE is according to carrying out with reference to CRS sequences and the CRS sequences for receiving Channel estimation.The first embodiment of the embodiment with base station for CRS sequences is adapted, as base station adopts existing skill Multiple CRS sequences of same cell are respectively mapped to launch on identical running time-frequency resource by art according only to cell ID, therefore UE is only Esource impact information need to be calculated according to cell ID of place cell, and be received in the corresponding running time-frequency resource of esource impact information CRS sequences.As base station generates multiple CRS sequences according to cell ID and CSI-RS configuration identifiers simultaneously, therefore UE needs root Generate with reference to CRS sequences, to enter with the CRS sequences for receiving according to cell ID and the CSI-RS configuration identifiers of itself of place cell Row matching, obtains correct CRS sequences, and carries out channel estimation.

Wherein, UE generations are similar with the process that base station generates CRS sequences with reference to the process of CRS sequences, can be according to formula (14) generating, will not be described here.

The flow chart that Fig. 4 B are directed to second embodiment of CRS sequences for the UE sides that one embodiment of the invention is provided.Such as Shown in Fig. 4 B, present embodiment includes：Step 401b, UE is generated with reference to CRS sequences according to cell ID of place cell；Step 402b, UE generate esource impact information according to cell ID and the CSI-RS configuration identifiers of itself；Step 403b, UE is reflected in resource Penetrate reception CRS sequences on the corresponding running time-frequency resource of information；Step 404b, UE is according to reference to CRS sequences and the CRS sequences for receiving Carry out channel estimation.Second embodiment of the embodiment with base station side for CRS sequences is adapted, due to base station only root CRS sequences are generated according to cell ID, therefore UE also only needs to be generated with reference to CRS sequences according to cell ID of place cell.Due to base Stand while will be launched on same CRS sequence cyclic shifts to different running time-frequency resources according to cell ID and CSI-RS configuration identifiers, Therefore UE needs to generate esource impact information with phase according to cell ID and the CSI-RS configuration identifiers of itself of place cell simultaneously CRS sequences are received on the running time-frequency resource answered, and channel estimation are carried out according to CRS sequences and with reference to CRS sequences.

Wherein, the process that UE generates esource impact information is the inverse process of the cyclic shift process shown in formula (18), This repeats no more.

The flow chart that Fig. 4 C are directed to the third embodiment of CRS sequences for the UE sides that one embodiment of the invention is provided.Such as Shown in Fig. 4 C, present embodiment includes：Cell ID and CSI-RS configuration identifier itself of step 401c, UE according to place cell Generate with reference to CRS sequences；Step 402c, UE generates esource impact information according to cell ID and the CSI-RS configuration identifiers of itself； Step 403c, UE receives CRS sequences on the corresponding running time-frequency resource of esource impact information；Step 404c, UE is according to reference to CRS sequences Row and the CRS sequences for receiving carry out channel estimation.The embodiment is directed to the third embodiment of CRS sequences with base station side It is adapted.UE generates esource impact information according to cell ID and the CSI-RS configuration identifiers of itself simultaneously and refers to CRS sequences, protects Card receives corresponding CRS sequences on correct running time-frequency resource, while using accordingly with reference to CRS sequences and the CRS for receiving Sequence carries out channel estimation.

In the various embodiments described above mode, UE is using the processing mode being adapted with base station, it is ensured that can correctly carry out letter Road is estimated, is correctly to demodulate corresponding PCFICH to lay the foundation, and realizes by generating multiple control channels for same cell To improve the purpose of the capacity of the whole control channel of cell, the UE quantity that can really obtain servicing in cell is increased, improved The service quality of cell, while ensureing that the interference in cell between each control channel meets system requirements.

A kind of structural representation of the base station that Fig. 5 A are provided for one embodiment of the invention.As shown in Figure 5A, the present embodiment Base station includes：Channel generation module 21 and mapping transmitter module 22.

Specifically, channel generation module 21, for generating the CSI-RS configured with UE in cell ID and cell configuration marks Know corresponding control channel content, and control channel content is supplied to into mapping transmitter module 22.Mapping transmitter module 22, with letter Road generation module 21 connects, for according to cell ID and CSI-RS configuration identifiers, by control channel content map to running time-frequency resource On launched.

Each functional module in the present embodiment base station can be used for the flow process for performing above-mentioned control channel launching technique embodiment, Its concrete operating principle is repeated no more, and refers to the description of embodiment of the method.Channel generation module 21 can be a processor；Mapping Transmitter module 22 can be a port.

The base station of the present embodiment, while the CSI-RS configuration identifiers configured according to UE in cell ID and cell, are same Cell generates multiple control channel contents, and multiple control channel contents projections is gone out by corresponding running time-frequency resource, passes through Multiple control channel contents improve the capacity of control channel in cell, improve the UE's of the service of really can obtaining in cell Quantity, improves the service performance of cell, and the requirement with spaced antenna configuration mode is adapted.

Further, as shown in Figure 5 B, transmitter module 22 being mapped in the present embodiment can include following any one functional unit Or its combination：The first mapping mapping of transmitter unit 221, second transmitting single 222 and the 3rd mapping transmitter unit 223.First mapping The mapping of transmitter unit 221, second transmitting single 222 and the 3rd mapping transmitter unit 223 can be interface units respectively.

When each control channel content includes PCFICH, mapping transmitter module 22 is by the first mapping transmitter unit 221 To PCFICH process.Specifically, first maps transmitter unit 221 according to cell ID and CSI-RS configuration identifiers to PCFICH Scrambled, the PCFICH after scrambling is mapped on running time-frequency resource and is launched；Or, the first mapping transmitter unit 221 pairs PCFICH is scrambled, and the PCFICH after scrambling is mapped on running time-frequency resource corresponding with cell ID and CSI-RS configuration identifiers Launched；Or, the first mapping transmitter unit 221 is scrambled to PCFICH according to cell ID and CSI-RS configuration identifiers, Then the PCFICH after scrambling is mapped on running time-frequency resource corresponding with cell ID and CSI-RS configuration identifiers and is launched.

More specifically, the first mapping transmitter unit 221 is realized being configured according to cell ID and CSI-RS by formula (1) Mark is scrambled to PCFICH；And first mapping transmitter unit 221 can be according to formula (2), (3) or (4) computing formula (1) The initial value of middle random sequences c1.

More specifically, the PCFICH after first 221 pairs of scramblings of mapping transmitter unit is modulated, layer maps and precoding Afterwards, the sequence after acquisition is processed；After sequence after by process is divided into four groups of subsequences, according to formula (6) by four groups of subsequences It is mapped in corresponding resource element groups and is launched.

When each control channel content includes PDCCH, mapping transmitter module 22 is by the second mapping transmitter unit 222 pairs PDCCH process.Specifically, the second mapping transmitter unit 222 is carried out to PDCCH according to cell ID and CSI-RS configuration identifiers Scrambling, is circulated shifting processing to the PDCCH after scrambling, and the result of cyclic shift process is carried out sending out on running time-frequency resource Penetrate；Or, the second mapping transmitter unit 222 is scrambled to PDCCH, according to cell ID and CSI-RS configuration identifiers to scrambling after PDCCH be circulated shifting processing, by cyclic shift process result launched on running time-frequency resource；Or, second reflects Penetrate transmitter unit 222 to scramble PDCCH according to cell ID and CSI-RS configuration identifiers, configured according to cell ID and CSI-RS Mark is circulated shifting processing to the PDCCH after scrambling, and the result of cyclic shift process is launched on running time-frequency resource.

More specifically, the second mapping transmitter unit 222 is realized being configured according to cell ID and CSI-RS by formula (7) Mark is scrambled to PDCCH；And second mapping transmitter unit 222 can according in formula (8) or (9) computing formula (7) with The initial value of machine sequence c2.

More specifically, the second mapping transmitter unit 222 is realized being configured according to cell ID and CSI-RS by formula (10) Mark is circulated shifting processing to the PDCCH after scrambling, and launches.

When each control channel content includes PHICH, mapping transmitter module 22 is by the 3rd mapping transmitter unit 223 pairs PHICH process.Specifically, the 3rd mapping transmitter unit 223 is carried out to PHICH according to cell ID and CSI-RS configuration identifiers Spectrum-spreading and scrambling, the PHICH after spectrum-spreading and scrambling is mapped on running time-frequency resource and is launched；Or, the 3rd mapping transmitter unit 223 Spectrum-spreading and scrambling is carried out to PHICH, when the PHICH after spectrum-spreading and scrambling is mapped to cell ID and corresponding CSI-RS configuration identifiers Launched in frequency resource；Or, the 3rd mapping transmitter unit 223 enters to PHICH according to cell ID and CSI-RS configuration identifiers Row spectrum-spreading and scrambling, the PHICH after spectrum-spreading and scrambling is mapped on running time-frequency resource corresponding with cell ID and CSI-RS configuration identifiers Launched.

More specifically, the 3rd mapping transmitter unit 223 can be realized according to cell ID and CSI-RS by formula (11) Configuration identifier carries out spectrum-spreading and scrambling to PHICH；And by the initial value of random sequences c3 in formula (12) computing formula (11).

More specifically, the 3rd mapping transmitter unit 223 can be realized according to cell ID and CSI-RS by formula (13) Configuration identifier is mapped to the PHICH after spectrum-spreading and scrambling in corresponding resource element groups to be launched, and launches.

Above-mentioned each formula can be found in the description in above-mentioned control channel launching technique embodiment, will not be described here.And it is each The concrete operating principle of functional unit is also repeated no more, and refers to the description in embodiment of the method.

Further, the base station of the present embodiment also includes：First acquisition module 23.First acquisition module 23, for obtaining Take the CSI-RS configuration identifiers being pre-configured with；Or, for the CSI-RS receiving powers reported according to UE, it is determined that to UE configurations The corresponding CSI-RS configuration identifiers in CSI-RS ports, and CSI-RS configuration identifiers are sent to by UE by RRC signaling.

Realize that according to cell ID and CSI-RS configuration identifiers be same little by above-mentioned functions module in the base station of the present embodiment Area generates multiple control channel contents, and launches on corresponding running time-frequency resource, solves in spaced antenna configuration side Cause in cell, really to obtain the UE limited amounts for servicing because control channel capacity is limited under formula, spaced antenna configuration mode is excellent The problem that gesture cannot be played, improves the service performance of cell.

It is adapted with above-mentioned base station, one embodiment of the invention provides a kind of UE, the UE includes：First generates receiver module. Specifically, the first generation receiver module is for the CSI-RS configuration marks that configure according to cell ID of place cell and by this UE Know, control channel content is received on running time-frequency resource.

Further, as shown in fig. 6, the present embodiment first generate receiver module 31 include following any one functional unit or its Combination：First generates receiving unit 311, second generates receiving unit 312 and the 3rd generation receiving unit 313.First generation connects It can be different processor units respectively to receive unit 311, second and generate receiving unit 312 and the 3rd generation receiving unit 313.

When each control channel content includes PCFICH, first generates receiver module 31 generates receiving unit by first 311 pairs of PCFICH process.Specifically, first receiving unit 311 is generated according to cell ID generation esource impact information, in money PCFICH is received on the corresponding running time-frequency resource of source map information, and PCFICH is carried out according to cell ID and CSI-RS configuration identifiers Descrambling；Or, first generates receiving unit 311 according to cell ID and CSI-RS configuration identifiers, generates esource impact information, in money PCFICH is received on the corresponding running time-frequency resource of source map information, and PCFICH is descrambled；Or, first generates receiving unit 311 according to cell ID and CSI-RS configuration identifiers, generate esource impact information, on the corresponding running time-frequency resource of esource impact information PCFICH is received, and PCFICH is descrambled according to cell ID and CSI-RS configuration identifiers.

When each control channel content includes PDCCH, first generates receiver module 31 generates receiving unit by second 312 pairs of PDCCH process.Specifically, second receiving unit 312 is generated according to cell ID generation esource impact information, in source PDCCH is received on the corresponding running time-frequency resource of map information, and PDCCH is solved according to cell ID and CSI-RS configuration identifiers Disturb；Or, second generates receiving unit 312 according to cell ID and CSI-RS configuration identifiers, generates esource impact information, in resource PDCCH is received on the corresponding running time-frequency resource of map information, and PDCCH is descrambled；Or, second generates receiving unit 312 According to cell ID and CSI-RS configuration identifiers, esource impact information is generated, is connect on the corresponding running time-frequency resource of esource impact information PDCCH is received, and PDCCH is descrambled according to cell ID and CSI-RS configuration identifiers.

When each control channel content includes PHICH, first generates receiver module 31 generates receiving unit by the 3rd 313 pairs of PHICH process.Specifically, the 3rd receiving unit 313 is generated according to cell ID generation esource impact information, in money PHICH is received on the corresponding running time-frequency resource of source map information, and PHICH is solved according to cell ID and CSI-RS configuration identifiers Disturb；Or, the 3rd generates receiving unit 313 according to cell ID and CSI-RS configuration identifiers, generates esource impact information, in resource PHICH is received on the corresponding running time-frequency resource of map information, and PHICH is descrambled；Or, the 3rd generates receiving unit 313 According to cell ID and CSI-RS configuration identifiers, esource impact information is generated, is connect on the corresponding running time-frequency resource of esource impact information PHICH is received, and PHICH is descrambled according to cell ID and CSI-RS configuration identifiers.

Further, the UE of the present embodiment also includes：Second acquisition module 32.Second acquisition module 32 is used to obtain in advance The CSI-RS configuration identifiers of configuration；Or, for CSI-RS receiving powers being reported to base station, and receive base station and connect according to CSI-RS The RRC signaling that power is returned is received, CSI-RS configuration identifiers are obtained from RRC signaling.

Above-mentioned each functional unit of the present embodiment UE or module, can be used to perform above-mentioned control channel method of reseptance embodiment Flow process, its concrete operating principle repeats no more, and refers to the description of embodiment of the method.

The base station that the UE of the present embodiment is provided with above-described embodiment is engaged, and UE is according to cell ID and itself is configured CSI-RS configuration identifiers receive control channel on corresponding running time-frequency resource, are ensureing to interfere satisfaction between each control channel While system requirements, the capacity for realizing by multiple control channels to improve control channel in cell increases cell interior energy The enough UE quantity for really obtaining servicing, improves the purpose of the service quality of cell.

The structural representation of the base station that Fig. 7 is provided for another embodiment of the present invention.As shown in fig. 7, the base station includes：Generate Transmitter module 71.The generation transmitter module 71 for the CSI-RS configuration identifiers that configure according to cell ID and by UE in cell, Launch CRS sequences on running time-frequency resource.The CRS sequences are used to aid in UE to receive and demodulate PCFICH.

Specifically, generating transmitter module 71 can include following any one generation transmitter unit or its combination：First generates Transmitter unit 711, for according to cell ID and CSI-RS configuration identifiers, generating CRS sequences, and being circulated shifting to CRS sequences Position is processed, and the result of cyclic shift process is launched on running time-frequency resource.

Second generates transmitter unit 712, for generating CRS sequences, and according to cell ID and CSI-RS configuration identifiers to CRS Sequence is circulated shifting processing, and the result of cyclic shift process is launched on running time-frequency resource.

3rd generates transmitter unit 713, for according to cell ID and CSI-RS configuration identifiers, generating CRS sequences, and according to Cell ID and CSI-RS configuration identifiers are circulated shifting processing to CRS sequences, and the result of cyclic shift process is provided in time-frequency Launched on source.

More specifically, the first generation transmitter unit 711 or the 3rd generation transmitter unit 713 can pass through formula (14), Realize, according to cell ID and CSI-RS configuration identifiers, generating CRS sequences；And first generate transmitter unit 711 or the 3rd generate and send out Penetrating unit 713 can be according to the initial value of random sequences c4 in formula (15), (16) or (17) computing formula (14).

More specifically, the second generation transmitter unit 712 or the 3rd generation transmitter unit 713 can pass through formula (18), Realization is circulated shifting processing according to cell ID and CSI-RS configuration identifiers to CRS, and launches.

Above-mentioned generation transmitter module 71 or its functional unit can be used to perform above-mentioned reference signal launching technique embodiment Flow process, its operation principle are repeated no more, and refer to the description of embodiment of the method.

The base station of the present embodiment, is generating the same of multiple control channel contents according to cell ID and CSI-RS configuration identifiers When, the CRS for aiding in UE to receive multiple control channel contents is provided in corresponding time-frequency according to cell ID and CSI-RS configuration identifiers Launch on source, it is ensured that UE is properly received and demodulates PDFICH, be improving cell by generating multiple control channel contents Can real service UE quantity, improve cell service performance provide condition.

The base station provided with above-mentioned another embodiment is adapted, and another embodiment of the present invention provides a kind of UE.Fig. 8 is this The structural representation of the UE that bright another embodiment is provided.As shown in figure 8, the UE includes：Second generates receiver module 81.This second Receiver module 81 is generated for the CSI-RS configuration identifiers that configure according to cell ID of place cell and by UE, in running time-frequency resource Upper reception CRS sequences.

Specifically, the second generation receiver module 81 can include following any one generation receiving unit or its combination：

4th generates receiving unit 811, for being generated with reference to CRS sequences according to cell ID and CSI-RS configuration identifiers；Root Esource impact information is generated according to cell ID；CRS sequences are received on the corresponding running time-frequency resource of esource impact information, and according to reference CRS sequences and the CRS sequences for receiving carry out channel estimation.

5th generates receiving unit 812, for being generated with reference to CRS sequences according to cell ID；According to cell ID and CSI- RS configuration identifiers, generate esource impact information；The reception CRS sequences on the corresponding running time-frequency resource of esource impact information, and according to Channel estimation is carried out with reference to CRS sequences and the CRS sequences for receiving.

6th generates receiving unit 813, for being generated with reference to CRS sequences according to cell ID and CSI-RS configuration identifiers；Root According to cell ID and CSI-RS configuration identifiers, esource impact information is generated；Receive on the corresponding running time-frequency resource of esource impact information CRS sequences, and channel estimation is carried out according to reference to CRS sequences and the CRS sequences for receiving.

The second generation receiver module 81 or its functional unit in the UE of the present embodiment can be used to perform above-mentioned reference signal The flow process of method of reseptance embodiment, its operation principle are repeated no more, and refer to the description of embodiment of the method.

The UE of the present embodiment, the UE provided with above-described embodiment are engaged, and UE is according to cell ID and CSI-RS configuration identifiers CRS sequences are received on corresponding running time-frequency resource, by CRS sequences auxiliary reception and PCFICH is demodulated, it is ensured that can be successful PCFICH is received, is that the capacity of the control channel of cell is improved by generating and launching multiple control channel contents in base station, increased Plus the UE quantity for servicing in cell, can be really obtained, the service performance for improving cell provides condition, matches somebody with somebody with spaced antenna Put mode to be adapted, be that the development of spaced antenna configuration mode lays the foundation.

One of ordinary skill in the art will appreciate that：Realize that all or part of step of said method embodiment can pass through Completing, aforesaid program can be stored in a computer read/write memory medium the related hardware of programmed instruction, the program Upon execution, perform the step of including said method embodiment；And aforesaid storage medium includes：ROM, RAM, magnetic disc or light Disk etc. is various can be with the medium of store program codes.

Finally it should be noted that：Above example only to illustrate technical scheme, rather than a limitation；Although With reference to the foregoing embodiments the present invention has been described in detail, it will be understood by those within the art that：Which still may be used To modify to the technical scheme described in foregoing embodiments, or equivalent is carried out to which part technical characteristic； And these modification or replace, do not make appropriate technical solution essence depart from various embodiments of the present invention technical scheme spirit and Scope.

Claims

1. a kind of control channel launching technique, it is characterised in that include：

The channel state information reference signals CSI-RS configuration mark for configuring is generated with cell ID and by intra-cell users equipment Know corresponding control channel content；

According to the cell ID and the CSI-RS configuration identifiers, will be the control channel content map enterprising to running time-frequency resource Row transmitting.

2. control channel launching technique according to claim 1, it is characterised in that the control channel content includes：Thing Reason layer control format indicates channel PCFICH；

It is described according to the cell ID and the CSI-RS configuration identifiers, by the control channel content map to running time-frequency resource On carry out transmitting and include：

The PCFICH is scrambled according to the cell ID and the CSI-RS configuration identifiers, by the PCFICH after scrambling It is mapped on running time-frequency resource and is launched；Or

The PCFICH is scrambled, the PCFICH after scrambling is mapped to and is configured with the cell ID and the CSI-RS Identify and launched on corresponding running time-frequency resource；Or

The PCFICH is scrambled according to the cell ID and the CSI-RS configuration identifiers, by the PCFICH after scrambling It is mapped on running time-frequency resource corresponding with the cell ID and the CSI-RS configuration identifiers and is launched.

3. control channel launching technique according to claim 2, it is characterised in that described according to the cell ID and institute Stating CSI-RS configuration identifiers and carrying out scrambling to the PCFICH includes：

According to formulaThe PCFICH is scrambled；

The PCFICH by after scrambling is mapped to time-frequency money corresponding with the cell ID and the CSI-RS configuration identifiers Transmitting is carried out on source to be included：

PCFICH after the scrambling is modulated, layer maps and precoding, the sequence after acquisition process；

Sequence after the process is divided into into four groups of subsequences；

According to formulaFour groups of subsequences are mapped to into corresponding resource element groups On launched；

Wherein, b is the symbol sebolic addressing that a sub- frame in is launched on the PCFICH；

For the symbol sebolic addressing after scrambling；

C1 is random sequences, and the initial value of c1 is determined according to the cell ID and the CSI-RS configuration identifiers；

Mod is modulus operator；

k_jFor the resource element groups that jth group subsequence is mapped to, j=0 ... 3；

\overset{&OverBar;}{k} = (N_{s c}^{R B} / 2) \times ((N_{I D}^{c e l l} + N_{C S I - R S - C o n f i g}) \mod 2 N_{R B}^{D L});

For the cell ID；

N_{CSI-RS-Config}For the CSI-RS configuration identifiers；

For downlink resource blocks quantity；

The subcarrier number included in frequency domain by Resource Block.

4. control channel launching technique according to claim 3, it is characterised in that according to the cell ID and described CSI-RS configuration identifiers determine that the initial value of random sequences c1 includes：

According to formulaOr

Or

Determine the initial value of the c1；

Wherein, c_1initFor the initial value of the c1；

n_sFor the time slot position of a wireless frame in.

5. the control channel launching technique according to claim 1 or 2 or 3 or 4, it is characterised in that in the control channel Appearance also includes：Physical layer descending control channel PDCCH；

The PDCCH is scrambled according to the cell ID and the CSI-RS configuration identifiers, the PDCCH after scrambling is entered The process of row cyclic shift, the result of cyclic shift process is launched on running time-frequency resource；Or

The PDCCH is scrambled, the PDCCH after scrambling is entered according to the cell ID and the CSI-RS configuration identifiers The process of row cyclic shift, the result of cyclic shift process is launched on running time-frequency resource；Or

The PDCCH is scrambled according to the cell ID and the CSI-RS configuration identifiers, according to the cell ID Shifting processing is circulated to the PDCCH after scrambling with the CSI-RS configuration identifiers, by cyclic shift process result when Launched in frequency resource.

6. control channel launching technique according to claim 5, it is characterised in that described according to the cell ID and institute Stating CSI-RS configuration identifiers and carrying out scrambling to the PDCCH includes：

According to formulaThe PDCCH is scrambled；

It is described that shifting processing bag is circulated to the PDCCH after scrambling according to the cell ID and the CSI-RS configuration identifiers Include：

According to formulaPDCCH after the scrambling is entered Row cyclic shift；

Wherein, d is the symbol sebolic addressing that a sub- frame in is launched on the PDCCH；

For the symbol sebolic addressing after scrambling；

C2 is random sequences, and the initial value of c2 is determined according to the cell ID and the CSI-RS configuration identifiers；

Mod is modulus operator；

w^(p)I () is i-th group of signal sequence on p-th antenna port of the cell, (P-1), P is the cell to p=0 ... Antenna port sum；

For i-th group of signal sequence after cyclic shift on p-th antenna port；

M_quadFor signal sequence group number on p-th antenna port, wherein, i=0 ... (M_quad-1)；

For the cell ID；

N_{CSI-RS-Config}For the CSI-RS configuration identifiers.

7. control channel launching technique according to claim 6, it is characterised in that according to the cell ID and described CSI-RS configuration identifiers determine that the initial value of random sequences c2 includes：

According to formulaOr

Determine the initial value of the c2；

Wherein, c_2initFor the initial value；

n_sFor the time slot position of a wireless frame in.

8. control channel launching technique according to claim 5, it is characterised in that the control channel content also includes： Physical layer combining retransmission indicating channel PHICH；

Spectrum-spreading and scrambling is carried out to the PHICH according to the cell ID and the CSI-RS configuration identifiers, after spectrum-spreading and scrambling PHICH be mapped on running time-frequency resource and launched；Or

Spectrum-spreading and scrambling is carried out to the PHICH, the PHICH after spectrum-spreading and scrambling is mapped to and the cell ID and the CSI- Launched on the corresponding running time-frequency resource of RS configuration identifiers；Or

Spectrum-spreading and scrambling is carried out to the PHICH according to the cell ID and the CSI-RS configuration identifiers, after spectrum-spreading and scrambling PHICH be mapped on running time-frequency resource corresponding with the cell ID and the CSI-RS configuration identifiers and launched.

9. control channel launching technique according to claim 8, it is characterised in that described according to the cell ID and institute Stating CSI-RS configuration identifiers and carrying out spectrum-spreading and scrambling to the PHICH includes：

According to formulaThe PHICH is spread And scramble；

The PHICH by after spectrum-spreading and scrambling is mapped to time-frequency corresponding with the cell ID and the CSI-RS configuration identifiers Transmitting is carried out in resource to be included：

PHICH after the scrambling is mapped in corresponding resource element groups and is launched；

Wherein, e (i) is i-th element in the symbol sebolic addressing after spectrum-spreading and scrambling；C3 (i) for random sequences in i-th yuan Element, i=0 ..., M_symb- 1,

Z be scrambling after PHICH on symbol sebolic addressing, M_sFor the symbolic number of z；

For an orthogonal sequence；

For the spreading factor of PHICH, when using conventional cyclic prefix CP,For 4, when using extension CP,For 2；

C3 is random sequences, and the initial value of c3 is determined according to the cell ID and the CSI-RS configuration identifiers；

Mod is modulus operator；

It is all positions being not allocated in the resource element groups of PCFICH on orthogonal frequency division multiplex OFDM symbol；

For l'_jIn individual OFDM symbol, the number of the resource element groups of PCFICH is not yet assigned to；

n₁, in the 1st OFDM symbol, to be not yet assigned to the number of the resource element groups of PCFICH；

J be jth group subsequence, wherein j=0,1,2；

M' is intermediate variables of the PHICH when esource impact is made, and which per circulation primary, increases by 1 from the beginning of 0；

For the cell ID；

N_{CSI-RS-Config}For the CSI-RS configuration identifiers.

10. control channel launching technique according to claim 9, it is characterised in that according to the cell ID and described CSI-RS configuration identifiers determine that the initial value of c3 includes：

According to formulaIt is determined that The initial value of the c3；

Wherein, c_3initFor the initial value of the c3；n_sFor the time slot position of a wireless frame in.

11. according to claim 1 or 2 or 3 control channel launching technique, it is characterised in that the generation and cell ID In the corresponding control channel of channel state information reference signals CSI-RS configuration identifier configured by intra-cell users equipment Before appearance, methods described also includes：

The CSI-RS configuration identifiers that acquisition is pre-configured with；Or

According to the user equipment to report CSI-RS receiving powers, it is determined that to the CSI-RS ports correspondence of the user device configuration CSI-RS configuration identifiers, and the CSI-RS configuration identifiers are sent to by the user by radio resource control RRC signaling Equipment.

12. a kind of control channel method of reseptances, it is characterised in that include：

The channel condition information reference letter that user equipment is configured according to the cell ID of place cell and by the user equipment Number CSI-RS configuration identifiers, receive control channel content on running time-frequency resource.

13. control channel method of reseptances according to claim 12, it is characterised in that the control channel content includes： Physical layer control format indicates channel PCFICH；

The user equipment is joined according to the cell ID of place cell and by the channel condition information that the user equipment is configured Signal CSI-RS configuration identifiers are examined, control channel content is received on running time-frequency resource to be included：

Esource impact information is generated according to the cell ID, institute is received on the corresponding running time-frequency resource of the esource impact information PCFICH is stated, and the PCFICH is descrambled according to the cell ID and the CSI-RS configuration identifiers；Or

According to the cell ID and the CSI-RS configuration identifiers, esource impact information is generated, in the esource impact information The PCFICH is received on corresponding running time-frequency resource, and the PCFICH is descrambled；Or

According to the cell ID and the CSI-RS configuration identifiers, esource impact information is generated, in the esource impact information The PCFICH is received on corresponding running time-frequency resource, and according to the cell ID and the CSI-RS configuration identifiers to described PCFICH is descrambled.

The 14. control channel method of reseptances according to claim 12 or 13, it is characterised in that the control channel content is also Including：Physical layer descending control channel PDCCH；

The user equipment is joined according to the cell ID of place cell and by the channel condition information that the user equipment is configured Signal CSI-RS configuration identifiers are examined, control channel content is received on running time-frequency resource also to be included：

Esource impact information is generated according to the cell ID, institute is received on the corresponding running time-frequency resource of the esource impact information PDCCH is stated, and the PDCCH is descrambled according to the cell ID and the CSI-RS configuration identifiers；Or

According to the cell ID and the CSI-RS configuration identifiers, esource impact information is generated, in the esource impact information The PDCCH is received on corresponding running time-frequency resource, and the PDCCH is descrambled；Or

According to the cell ID and the CSI-RS configuration identifiers, esource impact information is generated, in the esource impact information The PDCCH is received on corresponding running time-frequency resource, and according to the cell ID and the CSI-RS configuration identifiers to described PDCCH is descrambled.

15. control channel method of reseptances according to claim 14, it is characterised in that the control channel content is also wrapped Include：Physical layer combining retransmission indicating channel PHICH；

Esource impact information is generated according to the cell ID, institute is received on the corresponding running time-frequency resource of the esource impact information PHICH is stated, and the PHICH is descrambled according to the cell ID and the CSI-RS configuration identifiers；Or

According to the cell ID and the CSI-RS configuration identifiers, esource impact information is generated, in the esource impact information The PHICH is received on corresponding running time-frequency resource, and the PHICH is descrambled；Or

According to the cell ID and the CSI-RS configuration identifiers, esource impact information is generated, in the esource impact information The PHICH is received on corresponding running time-frequency resource, and according to the cell ID and the CSI-RS configuration identifiers to described PHICH is descrambled.

The 16. control channel method of reseptances according to claim 12 or 13, it is characterised in that the user equipment is according to institute The channel state information reference signals CSI-RS configuration identifier configured in the cell ID of cell and by the user equipment, Before control channel content is received on running time-frequency resource, methods described also includes：

CSI-RS receiving powers are reported to base station, and receives the wireless money that the base station is returned according to the CSI-RS receiving powers Source controls RRC signaling, and the CSI-RS configuration identifiers are obtained from the RRC signaling.

17. a kind of reference signal launching techniques, it is characterised in that include：

The channel state information reference signals CSI-RS configuration identifier configured according to cell ID and by intra-cell users equipment, Launch cell specific reference signal CRS sequence on running time-frequency resource.

18. reference signal launching techniques according to claim 17, it is characterised in that described according to cell ID and cell The channel state information reference signals CSI-RS configuration identifier configured by interior user equipment, launches cell specific on running time-frequency resource Reference signal CRS sequence includes：

According to the cell ID and the CSI-RS configuration identifiers, the CRS sequences are generated, and the CRS sequences are carried out Cyclic shift process, the result of cyclic shift process is launched on running time-frequency resource；Or

The CRS sequences are generated, and the CRS sequences is followed according to the cell ID and the CSI-RS configuration identifiers Ring shifting processing, the result of cyclic shift process is launched on running time-frequency resource；Or

According to the cell ID and the CSI-RS configuration identifiers, generate the CRS sequences, and according to the cell ID and The CSI-RS configuration identifiers are processed to the CRS sequence cyclic shifts, by the result of cyclic shift process on running time-frequency resource Launched.

19. reference signal launching techniques according to claim 18, it is characterised in that it is described according to the cell ID and The CSI-RS configuration identifiers, generating the CRS sequences includes：

According to formulaGenerate the CRS sequences；

It is described that shifting processing is circulated to the CRS sequences according to the cell ID and the CSI-RS configuration identifiers, will The result of cyclic shift process carries out transmitting on running time-frequency resource to be included：

According to formula k=6m+ (v+v_shift) mod6, displacement is circulated to the CRS sequences；

Wherein,For n-th_sCRS sequences on individual time slot；

C4 is random sequences, and the initial value of c4 is determined according to the cell ID and the CSI-RS configuration identifiers, For maximum downlink bandwidth；

K is position of the CRS sequences on frequency domain after cyclic shift；

V is variable,

Mod represents modulus operator；

For the cell ID；

N_{CSI-RS-Config}For the CSI-RS configuration identifiers.

20. reference signal launching techniques according to claim 19, it is characterised in that according to the cell ID and described CSI-RS configuration identifiers determine that the initial value of c4 includes：

According to formulaOr

Or

c_{4 i n i t} = 2^{10} \times (7 \times (n_{s} + 1) + l + 1) \times (2 \times (N_{I D}^{c e l l} + N_{C S I - R S - C o n f i g}) + 1) + 2 \times (N_{I D}^{c e l l} + N_{C S I - R S - C o n f i g}) + N_{C P},

Determine the initial value of the c4,

Wherein, c_4initFor the initial value of the c4；

n_sFor the time slot position of a wireless frame in；

L is position of the CRS sequences place OFDM symbol in a time slot；

N_CPFor Cyclic Prefix factor of influence, when using conventional cyclic prefix CP, N_CPFor 1, when using extension CP, N_CPFor 0.

21. a kind of reference signal receiving methods, it is characterised in that include：

The channel condition information reference letter that user equipment is configured according to the cell ID of place cell and by the user equipment Number CSI-RS configuration identifiers, receive cell specific reference signal CRS sequence on running time-frequency resource.

22. reference signal receiving methods according to claim 21, it is characterised in that the user equipment is little according to being located The cell ID in area and the channel state information reference signals CSI-RS configuration identifier configured by the user equipment, in time-frequency Cell specific reference signal CRS sequence is received in resource to be included：

Generated with reference to CRS sequences according to the cell ID and the CSI-RS configuration identifiers；Generated according to the cell ID Esource impact information；The CRS sequences are received on the corresponding running time-frequency resource of the esource impact information, and according to the reference CRS sequences and the CRS sequences for receiving carry out channel estimation；Or

Generated with reference to CRS sequences according to the cell ID；According to the cell ID and the CSI-RS configuration identifiers, generate Esource impact information；The CRS sequences are received on the corresponding running time-frequency resource of the esource impact information, and according to the reference CRS sequences and the CRS sequences for receiving carry out channel estimation；Or

Generated with reference to CRS sequences according to the cell ID and the CSI-RS configuration identifiers；According to the cell ID and institute CSI-RS configuration identifiers are stated, esource impact information is generated；Receive on the corresponding running time-frequency resource of the esource impact information described CRS sequences, and channel estimation is carried out according to the reference CRS sequences and the CRS sequences for receiving.

23. a kind of base stations, it is characterised in that include：

Channel generation module, for generating with cell ID and being referred to by the channel condition information that intra-cell users equipment is configured The corresponding control channel content of signal CSI-RS configuration identifiers；

Mapping transmitter module, for according to the cell ID and the CSI-RS configuration identifiers, by the control channel content It is mapped on running time-frequency resource and is launched.

24. base stations according to claim 23, it is characterised in that the control channel content includes：Physical layer controls lattice Formula indicates channel PCFICH；

The mapping transmitter module includes：First mapping transmitter unit, for being matched somebody with somebody according to the cell ID and the CSI-RS Put mark to scramble the PCFICH, the PCFICH after scrambling is mapped on running time-frequency resource and is launched；Or, it is used for The PCFICH is scrambled, the PCFICH after scrambling is mapped to and the cell ID and the CSI-RS configuration identifiers Launched on corresponding running time-frequency resource；Or, for according to the cell ID and the CSI-RS configuration identifiers to described PCFICH is scrambled, and the PCFICH after scrambling is mapped to corresponding with the cell ID and the CSI-RS configuration identifiers Launched on running time-frequency resource.

25. base stations according to claim 24, it is characterised in that the first mapping transmitter unit is specifically for according to public affairs FormulaThe PCFICH is scrambled；

The first mapping transmitter unit is specifically for being modulated to the PCFICH after the scrambling, layer maps and precoding, Sequence after acquisition process；After sequence after by the process is divided into four groups of subsequences, according to formulaFour groups of subsequences are mapped in corresponding resource element groups and are launched；

For the symbol sebolic addressing after scrambling；

Mod is modulus operator；

\overset{&OverBar;}{k} = (N_{s c}^{R B} / 2) \times ((N_{I D}^{c e l l} + N_{C S I - R S - C o n f i g}) \mod 2 N_{R B}^{D L});

For the cell ID；

N_{CSI-RS-Config}For the CSI-RS configuration identifiers；

For downlink resource blocks quantity；

The subcarrier number included in frequency domain by Resource Block.

26. base stations according to claim 25, it is characterised in that the first mapping transmitter unit is additionally operable to：

According to formulaOr

Or

Determine the initial value of the c1；

Wherein, c_1initFor the initial value of the c1；

n_sFor the time slot position of a wireless frame in.

27. base stations according to claim 23 or 24 or 25 or 26, it is characterised in that the control channel content is also wrapped Include：Physical layer descending control channel PDCCH；

The mapping transmitter module also includes：Second mapping transmitter unit, for according to the cell ID and the CSI-RS Configuration identifier is scrambled to the PDCCH, is circulated shifting processing to the PDCCH after scrambling, by cyclic shift process As a result launched on running time-frequency resource；Or, for scrambling to the PDCCH, according to the cell ID and described CSI-RS configuration identifiers are circulated shifting processing to the PDCCH after scrambling, by the result of cyclic shift process in running time-frequency resource On launched；Or, for being scrambled to the PDCCH according to the cell ID and the CSI-RS configuration identifiers, Shifting processing is circulated to the PDCCH after scrambling according to the cell ID and the CSI-RS configuration identifiers, circulation is moved The result that position is processed is launched on running time-frequency resource.

28. base stations according to claim 27, it is characterised in that the second mapping transmitter unit is specifically for according to public affairs FormulaThe PDCCH is scrambled；

The second mapping transmitter unit is specifically for according to formula Displacement is circulated to the PDCCH after the scrambling；

For the symbol sebolic addressing after scrambling；

Mod is modulus operator；

For i-th group of signal sequence after cyclic shift on p-th antenna port；

For the cell ID；

N_{CSI-RS-Config}For the CSI-RS configuration identifiers.

29. base stations according to claim 28, it is characterised in that the second mapping transmitter unit is additionally operable to according to formulaOr

Determine the initial value of the c2；

Wherein, c_2initFor the initial value of the c2；

n_sFor the time slot position of a wireless frame in.

30. base stations according to claim 27, it is characterised in that the control channel content also includes：Physical layer mixes Retransmission indicating chanel PHICH；

The mapping transmitter module also includes：3rd mapping transmitter unit, for according to the cell ID and the CSI-RS Configuration identifier carries out spectrum-spreading and scrambling to the PHICH, the PHICH after spectrum-spreading and scrambling is mapped on running time-frequency resource and is launched； Or, for carrying out spectrum-spreading and scrambling to the PHICH, the PHICH after spectrum-spreading and scrambling is mapped to and the cell ID and institute State and launched on the corresponding running time-frequency resource of CSI-RS configuration identifiers；Or, for according to the cell ID and the CSI- RS configuration identifiers carry out spectrum-spreading and scrambling to the PHICH, and the PHICH after spectrum-spreading and scrambling is mapped to and the cell ID and institute State and launched on the corresponding running time-frequency resource of CSI-RS configuration identifiers.

31. base stations according to claim 30, it is characterised in that the 3rd mapping transmitter unit is specifically for according to public affairs FormulaSpectrum-spreading and scrambling is carried out to the PHICH；

It is described 3rd mapping transmitter unit specifically for

According to formula

PHICH after the spectrum-spreading and scrambling is mapped in corresponding resource element groups and is launched；

For an orthogonal sequence；

Mod is modulus operator；

J be jth group subsequence, wherein j=0,1,2；M' is intermediate variables of the PHICH when esource impact is done, and which is opened from 0 Begin, per circulation primary, increase by 1；

For the cell ID；

N_{CSI-RS-Config}For the CSI-RS configuration identifiers.

32. base stations according to claim 31, it is characterised in that the 3rd mapping transmitter unit is additionally operable to：

According to formulaIt is determined that The initial value of the c3；

33. base stations according to claim 23 or 24 or 25, it is characterised in that also include：

First acquisition module, for obtaining the CSI-RS configuration identifiers being pre-configured with；Or, for being set according to the user The standby CSI-RS receiving powers for reporting, it is determined that to the corresponding CSI-RS configurations mark in CSI-RS ports of the user device configuration Know, and the CSI-RS configuration identifiers are sent to by the user equipment by radio resource control RRC signaling.

34. a kind of user equipmenies, it is characterised in that include：

First generates receiver module, for the channel shape configured according to the cell ID of place cell and by the user equipment State information reference signal CSI-RS configuration identifiers, receive control channel content on running time-frequency resource.

35. user equipmenies according to claim 34, it is characterised in that the control channel content includes：Physical layer control Format indication channel PCFICH processed；

The first generation receiver module includes the first generation receiving unit, for generating esource impact letter according to cell ID Breath, receives the PCFICH on the corresponding running time-frequency resource of the esource impact information, and according to the cell ID and described CSI-RS configuration identifiers are descrambled to the PCFICH；Or, for being configured according to the cell ID and the CSI-RS Mark, generates esource impact information, receives the PCFICH on the corresponding running time-frequency resource of the esource impact information, and to institute State PCFICH to be descrambled；Or, for according to the cell ID and the CSI-RS configuration identifiers, generating esource impact letter Breath, receives the PCFICH on the corresponding running time-frequency resource of the esource impact information, and according to the cell ID and described CSI-RS configuration identifiers are descrambled to the PCFICH.

36. user equipmenies according to claim 34 or 35, it is characterised in that the control channel content also includes：Thing Reason layer down control channel PDCCH；

The first generation receiver module also includes：Second generates receiving unit, for generating resource according to the cell ID Map information, receives the PDCCH on the corresponding running time-frequency resource of the esource impact information, and according to the cell ID and The CSI-RS configuration identifiers are descrambled to the PDCCH；Or, for being matched somebody with somebody according to the cell ID and the CSI-RS Mark is put, and is generated esource impact information, the PDCCH is received on the corresponding running time-frequency resource of the esource impact information, and it is right The PDCCH is descrambled；Or, for according to the cell ID and the CSI-RS configuration identifiers, generating esource impact Information, receives the PDCCH on the corresponding running time-frequency resource of the esource impact information, and according to the cell ID and described CSI-RS configuration identifiers are descrambled to the PDCCH.

37. user equipmenies according to claim 36, it is characterised in that the control channel content also includes：Physical layer Combining retransmission indicating channel PHICH；

The first generation receiver module also includes：3rd generates receiving unit, for generating resource according to the cell ID Map information, receives the PHICH on the corresponding running time-frequency resource of the esource impact information, and according to the cell ID and The CSI-RS configuration identifiers are descrambled to the PHICH；Or, for being matched somebody with somebody according to the cell ID and the CSI-RS Mark is put, and is generated esource impact information, the PHICH is received on the corresponding running time-frequency resource of the esource impact information, and it is right The PHICH is descrambled；Or, for according to the cell ID and the CSI-RS configuration identifiers, generating esource impact Information, receives the PHICH on the corresponding running time-frequency resource of the esource impact information, and according to the cell ID and described CSI-RS configuration identifiers are descrambled to the PHICH.

38. user equipmenies according to claim 34 or 35, it is characterised in that also include：

Second acquisition module, for obtaining the CSI-RS configuration identifiers being pre-configured with；Or, for reporting CSI- to base station RS receiving powers, and the radio resource control RRC signaling that the base station is returned according to the CSI-RS receiving powers is received, from institute The CSI-RS configuration identifiers are obtained in stating RRC signaling.

39. a kind of base stations, it is characterised in that include：

Transmitter module is generated, for the channel condition information reference letter configured according to cell ID and by intra-cell users equipment Number CSI-RS configuration identifiers, launch cell specific reference signal CRS sequence on running time-frequency resource.

40. base stations according to claim 39, it is characterised in that the generation transmitter module includes following any one generation Transmitter unit or its combination：

First generates transmitter unit, for according to the cell ID and the CSI-RS configuration identifiers, generating the CRS sequences Row, and shifting processing is circulated to the CRS sequences, the result of cyclic shift process is launched on running time-frequency resource；

Second generates transmitter unit, for generating the CRS sequences, and according to the cell ID and CSI-RS configuration marks Knowledge is circulated shifting processing to the CRS sequences, and the result of cyclic shift process is launched on running time-frequency resource；

3rd generates transmitter unit, for according to the cell ID and the CSI-RS configuration identifiers, generating the CRS sequences Row, and shifting processing is circulated to the CRS sequences according to the cell ID and the CSI-RS configuration identifiers, will circulation The result of shifting processing is launched on running time-frequency resource.

41. base stations according to claim 40, it is characterised in that described first generates transmitter unit or the 3rd generation Transmitter unit is specifically for according to formulaGenerate institute State CRS sequences；

Described second generates transmitter unit or the 3rd generation transmitter unit specifically with according to formula k=6m+ (v+v_shift) mod6, it is right The CRS is circulated displacement；

Wherein,For n-th_sCRS sequences on individual time slot；

n_sFor the time slot position of a wireless frame in；

K is positions of the CRS on frequency domain after cyclic shift；

V is variable,

Mod represents modulus operator；

For the cell ID；

N_{CSI-RS-Config}For the CSI-RS configuration identifiers.

42. base stations according to claim 41, it is characterised in that described first generates transmitter unit or the 3rd generation transmitting Unit is additionally operable to according to formulaOr

Or

c_{4 i n i t} = 2^{10} \times (7 \times (n_{s} + 1) + l + 1) \times (2 \times (N_{I D}^{c e l l} + N_{C S I - R S - C o n f i g}) + 1) + 2 \times (N_{I D}^{c e l l} + N_{C S I - R S - C o n f i g}) + N_{C P},

Determine the initial value of the c4,

Wherein, c_4initFor the initial value of the c4；

n_sFor the time slot position of a wireless frame in；

L is position of the CRS sequences place OFDM symbol in a time slot；

43. a kind of user equipmenies, it is characterised in that include：

Second generates receiver module, for the channel shape configured according to the cell ID of place cell and by the user equipment State information reference signal CSI-RS configuration identifiers, receive cell specific reference signal CRS sequence on running time-frequency resource.

44. user equipmenies according to claim 43, it is characterised in that the second generation receiver module includes following Meaning one generates receiving unit or its combination：

4th generates receiving unit, for being generated with reference to CRS sequences according to the cell ID and the CSI-RS configuration identifiers； Esource impact information is generated according to the cell ID；Receive on the corresponding running time-frequency resource of the esource impact information described CRS sequences, and channel estimation is carried out according to the reference CRS sequences and the CRS sequences for receiving；

5th generates receiving unit, for being generated with reference to CRS sequences according to the cell ID；According to the cell ID and institute CSI-RS configuration identifiers are stated, esource impact information is generated；Receive on the corresponding running time-frequency resource of the esource impact information described CRS sequences, and channel estimation is carried out according to the reference CRS sequences and the CRS sequences for receiving；

6th generates receiving unit, for being generated with reference to CRS sequences according to the cell ID and the CSI-RS configuration identifiers； According to the cell ID and the CSI-RS configuration identifiers, esource impact information is generated；In esource impact information correspondence Running time-frequency resource on receive the CRS sequences, and letter is carried out according to the reference CRS sequences and the CRS sequences for receiving Estimate in road.