CN102612090A - Method and device for data joint transmission - Google Patents

Abstract

The invention discloses a method and device for data joint transmission. The method comprises the following steps: a first-class time-frequency resource is determined by first nodes in a coordinated multiple-point set, wherein the first-class time-frequency resource comprises time-frequency resources which are the same as the time-frequency resources of other nodes in the coordinated multiple-point set, which cannot be used for transmitting data, and can be used for data transmission of the first nodes, and the number of the nodes contained in the coordinated multiple-point set is more than or equal to 2; the first nodes transmit first-class data by virtue of the first-class time-frequency resource according to a single-node transmission mode; the first nodes transmit second-class data by virtue of a second-class time-frequency resource according to a coordinated multiple-point transmission mode, wherein the second-class time-frequency resource is beyond the first-class time-frequency resource, and can be used for data transmission of all the nodes in the coordinated multiple-point set, and the first-class data and the second-class data are the same or different. By the method and the device, the joint data transmission based the single-node transmission mode and the coordinated multiple-point transmission mode can be realized, and the system resource is saved.

Description

The method and the device of data aggregate transmission

Technical field

The data transmission technology of the communications field of the present invention, particularly a kind of method and device of data aggregate transmission.

Background technology

Along with development of Communication Technique; Method in subzone network side and end side transmission data is also more and more; In self sub-district, transmit data respectively such as each sub-district and give the same user device (UE, User Equipment) in the sub-district, be called the transfer of data under the non-cooperation cell transmission mode; It is all the UE transmitting broadcast multi-broadcast data in the sub-district that the single-frequency mode is adopted in each sub-district, is called Multicast Broadcast Single Frequency Network (MBSFN, Multicast-Broadcast Single-Frequency Network) transfer of data; The cooperation cell set is formed in a plurality of sub-districts that a website (Site) of communication system network is administered, and each subzone network side in the cooperation cell set is UE transmission data simultaneously, is called the transfer of data under the cooperation cell transmission mode.

Transfer of data under the non-cooperation cell transmission mode

Adopt non-cooperation cell transmission mode when UE transmission data in the sub-district; Can adopt multiple mode; Modes such as, transmit diversity transmission defeated such as the single antenna oral instructions or Closed-Loop Spatial Multiplexing transmission, below to transmit single cell data transmission with Closed-Loop Spatial Multiplexing be that example describes.

Data under the non-cooperation cell transmission mode are to be mapped in Resource Block (RB, resource block) to go up transmission.RE is made up of 14 symbols on time domain, on frequency, is made up of 12 number of sub-carrier, and these symbols and subcarrier comprise that altogether 168 resource elements (RE, Resource Element) are used for the mapping of data or information.Preceding 1～3 time-domain symbol at RB is used to shine upon the Physical Downlink Control Channel (PDCCH between sub-district and the UE; And remaining time-domain symbol is used to shine upon data and other control channel under the non-cooperation cell transmission mode that will be transferred to UE etc. Physical Downlink Control Channel).Such as, in the subzone network side, preceding 2 time-domain symbol that RB is set are used to shine upon cell-specific pilot signal (CRS; Cell-specific Reference Signal) time, the shared CRS port number in sub-district is 4 (to be 4 to the maximum, optional 1; 2 and 4), the running time-frequency resource sketch map of mapping CRS in sub-district as shown in Figure 1, wherein R refers to the RE that CRS takies; At this moment, in this running time-frequency resource, having only does not have the RE of CRS and other RS just can shine upon other data.

CRS is according to cell ID (ID; Identification) on certain running time-frequency resource, shine upon; Be that sub-district ID has determined the frequency domain displacement of CRS on the running time-frequency resource of each sub-district; As shown in Figure 1, the port 0 of CRS (Port 0) is on the subcarrier on the frequency domain of the running time-frequency resource of a sub-district 0,3,6 and 9.

A Site for communication system network generally can administer three neighbor cells, when transmitting CRS respectively, does not produce interference in order to guarantee three neighbor cells, and the subcarrier that the CRS of three neighbor cells is mapped to is also different; As shown in Figure 2, when the CRS of each sub-district took 4 number of sub-carrier, the subcarrier of the CRS of three sub-districts on frequency domain was respectively (0,3; 6,9), (1,4,7; 10), (2,5,8,11) subcarrier.

When the running time-frequency resource in the sub-district has shone upon CRS, remaining blank RE could shine upon the data under the non-cooperation cell transmission mode in the running time-frequency resource, adopts the transmission mode of setting to send to UE.

The transmission of MBSFN data

In the sub-district, can also will send in the sub-district multicast broadcast data of all UE and be mapped in the another kind of subframe and transmit, be i.e. the MBSFN subframe; It is two zones that the MBSFN subframe is divided into; Can be with reference to running time-frequency resource shown in Figure 1, first and second symbol is non-MBSFN zone, is used for the mapping of CRS; All the other symbols are the MBSFN zone, are used to shine upon multicast broadcast data.For the different districts under the Site, the running time-frequency resource of MBSFN subframe transmission CRS can be identical, so may occur in use disturbing, makes that communication system performance is not fine.

In the MBSFN zone, the different districts under Site adopts different MBS FN mapping multicast broadcast data, also can adopt identical MBSFN mapping multicast broadcast data, and this is referred to as Combined Treatment (JP, Joint Process) mode and shines upon multicast broadcast data.

Further, not all MBSFN subframe can adopt the JP mode to shine upon multicast broadcast data, transmits the communication system gain that brings so can not guarantee the JP mode.

Transfer of data under the cooperation cell transmission mode

In order to improve the gain of communication system, can adopt the cooperation cell transmission mode is UE transmission data.Particularly, gather as cooperation cell a plurality of sub-districts under Site, and adopting identical running time-frequency resource simultaneously is UE transmission data, just adopts the JP mode to transmit multi-cell data transmission.

Because during the transfer of data under the cooperation cell transmission mode; Require a plurality of sub-districts of cooperation cell set to adopt the identical multi-cell data transmission of identical running time-frequency resource transmission, adopt the running time-frequency resource of the data of transmitting under the cooperation cell transmission mode not have occupied so just require a plurality of sub-districts of cooperation cell set to be respectively applied for mapping.But pilot signal (RS, Reference Signal) need be transmitted in a sub-district in the cooperation cell set; Such as CRS or channel space information pilot signal (CSI-RS; ChannelSpatial Information-Reference Signal) time, just need take the part running time-frequency resource of self, at this moment; For other sub-districts in the cooperation cell set, the running time-frequency resource identical with this part running time-frequency resource can not be used to adopt cooperation cell transmission mode transmission data.In this case; Because in order to prevent to disturb; The subcarrier in frequency domain of each cell transmission RS in the cooperation cell set maybe be different, just maybe be different when be CRS, so to each interior sub-district of cooperation cell set; These RE that are used to transmit RS can not be used for the transfer of data under the cooperation cell transmission mode, have caused the running time-frequency resource waste of communication system.

The problem that occurs in the time of can adopting two kinds of methods to solve the transfer of data under the cooperation cell transmission mode; A kind of is to make each sub-district in the cooperation cell set all adopt identical running time-frequency resource mapping RS; Remaining running time-frequency resource just can carry out the transfer of data under the cooperation cell transmission mode; But this can cause, and each sub-district is in the interference problem of transmission RS in the cooperation cell set, and measurement has very big influence to UE employing RS; Second kind, adopt the JP mode to carry out the transfer of data under the cooperation cell transmission mode in the MBSFN of MBSFN subframe zone, but only carry out the communication system performance gain how many JP transmission can not provide the JP mode is brought in the MBSFN subframe.

To sum up, also do not have at present a kind ofly can under the situation of saving resource, in the cooperation cell set, carry out the transfer of data under the cooperation cell transmission mode.

Summary of the invention

The embodiment of the invention provides a kind of method of data aggregate transmission, and this method can adopt single node transmission mode and cooperative multipoint transmission mode transfer data simultaneously, saves running time-frequency resource.

The embodiment of the invention also provides a kind of device of data aggregate transmission, and this device can adopt single node transmission mode and cooperative multipoint transmission mode transfer data simultaneously, saves running time-frequency resource.

The technical scheme that the embodiment of the invention provides is achieved in that

A kind of method of data aggregate transmission; This method comprises: the first node in the coordinate multipoint set is confirmed first kind running time-frequency resource; Said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data, comprise interstitial content more than or equal to 2 in the said coordinate multipoint set; Said first node is on said first kind running time-frequency resource, according to single node transmission mode transmission primary sources; Said first node on second type of running time-frequency resource according to cooperative multipoint transmission mode transfer secondary sources; Said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all node transmission data in the said coordinate multipoint set, and said primary sources are identical or different with secondary sources.

A kind of method of data aggregate transmission; This method comprises: receiving terminal be received on the first kind running time-frequency resource, with the primary sources of single node transmission mode transmission, and on second type of running time-frequency resource, with the secondary sources of cooperative multipoint transmission mode transfer; Said primary sources are sent by the first node in the coordinate multipoint set; Said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data; Said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all node transmission data in the said coordinate multipoint set, comprises interstitial content more than or equal to 2 in the said coordinate multipoint set; Said receiving terminal is to carrying out equilibrium to the primary sources on the said first kind running time-frequency resource; Secondary sources on said second type of running time-frequency resource are carried out equilibrium; To the demodulation of decoding of the primary sources after the equilibrium and the secondary sources after the equilibrium, obtain said primary sources and said secondary sources.

A kind of communicator; Comprise: confirm the running time-frequency resource unit; Be used for confirming first kind running time-frequency resource; First kind running time-frequency resource is sent to the Resources allocation end, said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data, comprise interstitial content more than or equal to 2 in the said coordinate multipoint set; Transmission unit; Be used at said first kind running time-frequency resource; According to single node transmission mode transmission primary sources; And be used on second type of running time-frequency resource according to cooperative multipoint transmission mode transfer secondary sources, said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all nodes transmission data in the said coordinate multipoint set, said primary sources identical with secondary sources or different.

A kind of communicator comprises: receiving element, be received on the first kind running time-frequency resource, with the primary sources of single node transmission mode transmission, and on second type of running time-frequency resource, with the secondary sources of cooperative multipoint transmission mode transfer; Said primary sources are sent by the first node in the coordinate multipoint set; Said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data; Said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all node transmission data in the said coordinate multipoint set, comprises interstitial content more than or equal to 2 in the said coordinate multipoint set; Balanced unit carries out equilibrium to the primary sources on the said first kind running time-frequency resource, and the secondary sources on said second type of running time-frequency resource are carried out equilibrium; The demodulating and decoding unit is used for that said balanced unit is carried out primary sources and secondary sources after the equilibrium and carries out demodulating and decoding and handle, and obtains primary sources and secondary sources.

A kind of data transmission method comprises: network side notifies data transfer mode to user equipment (UE); Said network side will send to said UE with the relevant information that said data transfer mode is carried out transfer of data; Said relevant information comprises the resource information of carrying out the running time-frequency resource of transfer of data with said data transfer mode, and the nodal information that uses the node of said running time-frequency resource.

A kind of network side apparatus comprises: first transmitting element is used for data transfer mode is notified to user equipment (UE); And second transmitting element; Be used for and send to said UE with the relevant information that said data transfer mode is carried out transfer of data; Said relevant information comprises the resource information of carrying out the running time-frequency resource of transfer of data with said data transfer mode, and the nodal information that uses the node of said running time-frequency resource.

Visible by technique scheme; In the technical scheme that the embodiment of the invention provides; In the running time-frequency resource for a node in the coordinate multipoint set; With other node in the set of said coordinate multipoint can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data; Can be used for this node and transmit primary sources with the single node transmission mode, beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for interior all nodes transmission data of said coordinate multipoint set can be used for this node and transmits secondary sources with the cooperative multipoint transmission pattern.Other node in coordinate multipoint set can carry out cooperative multipoint transmission with said node transmitting on the identical running time-frequency resource of the running time-frequency resource of secondary sources with said node, and does not transmit data transmitting on the identical running time-frequency resource of the running time-frequency resource of primary sources with said node.Since this node can with can not being used to transmit on the running time-frequency resource of data and transmitting data of other node, so saved running time-frequency resource.

Description of drawings

The running time-frequency resource sketch map of CRS is shone upon in the sub-district that Fig. 1 provides for prior art;

The running time-frequency resource sketch map of three sub-districts mapping CRS under the Site that Fig. 2 provides for prior art;

Fig. 2 B is a kind of running time-frequency resource sketch map in the embodiment of the invention;

Fig. 2 C is an another kind of running time-frequency resource sketch map in the embodiment of the invention;

Fig. 2 D is an another kind of running time-frequency resource sketch map in the embodiment of the invention;

Data aggregate transmission method one flow chart that Fig. 3 provides for the embodiment of the invention;

Fig. 4 A is the employing single node transmission mode that provides of the embodiment of the invention and a kind of running time-frequency resource sketch map of cooperative multipoint transmission mode data joint transmission;

Fig. 4 B is the employing single node transmission mode that provides of the embodiment of the invention and the another kind of running time-frequency resource sketch map of cooperative multipoint transmission mode data joint transmission;

Fig. 4 C is the employing single node transmission mode that provides of the embodiment of the invention and the another kind of running time-frequency resource sketch map of cooperative multipoint transmission mode data joint transmission;

Data aggregate transmission method two flow charts that Fig. 5 provides for the embodiment of the invention;

The data aggregate transmission system sketch map that Fig. 6 provides for the embodiment of the invention;

Data aggregate transmitting device one structural representation that Fig. 7 provides for the embodiment of the invention;

Data aggregate transmitting device two structural representations that Fig. 8 provides for the embodiment of the invention;

The schematic flow sheet of a kind of data transfer mode that Fig. 9 provides for the embodiment of the invention;

The structural representation of a kind of network side apparatus that Figure 10 provides for the embodiment of the invention.

Embodiment

For making the object of the invention, technical scheme and advantage clearer, below with reference to the accompanying drawing embodiment that develops simultaneously, the present invention is done further explain.

Along with development of Communication Technique; The cooperation cell set is not only arranged at present; Also there is the set of cooperation transmitting node, in the set of cooperation transmitting node, has a plurality of transmitting nodes, cooperation cell set and the set of cooperation transmitting node are referred to as the coordinate multipoint set here.In embodiments of the present invention, the coordinate multipoint set can be gathered for cooperation cell, or also can be the set of cooperation transmitting node.Node in the coordinate multipoint set can be the base station; Sub-district or relaying with resource allocation function; Perhaps be transmitting node, transmitting node can for transmitting antenna, Remote Radio Unit (radio remote unit, RRU), zoom out no the end of a thread (remote radio head or radio remote head; RRH, antenna element (antenna unit, AU) etc.

In embodiments of the present invention, the base station can for evolution base station (evolved Node B, eNB), Node B, access point (access point) etc.Each base station can be provided as specific geographic area provides communication to cover.Term " sub-district (cell) " can be the overlay area of base station, and/or the overlay area of base station sub-system service, depends on the employed context of this term.The base station can be macrocell, skin sub-district (pico cell), femtocell sub-district (femto cell), and/or the sub-district of other type provides communication to cover.

In embodiments of the present invention, the receiving terminal that receives the node transmission data in the coordinate multipoint set can be UE, or the said nodes of reception such as relaying that said node covers send the communicator of data.In embodiments of the present invention, UE can be distributed in the whole wireless network, and each UE can be static state or mobile.UE can be called terminal (terminal), and travelling carriage (mobile station, MS), subscriber unit (subscriber unit), platform (station) etc.UE can be cell phone (cellularphone), and personal digital assistant (personal digital assistant, PDA); Radio modem (modem), Wireless Telecom Equipment, handheld device (handheld); Kneetop computer (laptopcomputer); Cordless telephone (cordless phone), WLL (wireless local loop, WLL) platform etc.UE can with macro base station, pico base station, the femto base station, RN etc. communicate.

Can find out from prior art; In the cooperation cell set, adopt in many cell transmission of cooperation mode transfer data procedures; These running time-frequency resources of each intranodal because being the data of same UE transmission, each sub-district in the cooperation cell set use identical running time-frequency resource, so all must be idle.But, in each sub-district in the cooperation cell set, need transmission RS to be used for UE node or channel quality under this UE are measured, such as transmission CRS or CSI-RS, this all need take running time-frequency resource.For a plurality of sub-districts in the communication system; Owing to will prevent to transmit the interference between the RS as far as possible, thus the running time-frequency resource of transmission RS, particularly during CRS; On the frequency domain of running time-frequency resource, displacement is arranged, so that each sub-district in the communication system is used to transmit the running time-frequency resource that RS takies is many.For a sub-district in the cooperation cell set, even its corresponding other sub-districts have the running time-frequency resource of RS idle, also can't adopt cooperation cell mode transfer data again, caused the waste of running time-frequency resource.

Data aggregate transmission method one flow chart that Fig. 3 provides for the embodiment of the invention, this method comprises:

First node in step 301, the coordinate multipoint set is confirmed first kind running time-frequency resource; First kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data, comprise interstitial content more than or equal to 2 in the said coordinate multipoint set;

Step 302, first node are on first kind running time-frequency resource, according to single node transmission mode transmission primary sources; First node on second type of running time-frequency resource according to cooperative multipoint transmission mode transfer secondary sources; Said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all nodes transmission data in the said coordinate multipoint set, said primary sources identical with secondary sources or different.

Therefore; In the embodiment of the invention; In the running time-frequency resource for a node in the coordinate multipoint set; With other node in the set of said coordinate multipoint can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data; Can be used for this node and transmit primary sources with the single node transmission mode, beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for interior all nodes transmission data of said coordinate multipoint set can be used for this node and transmits secondary sources with the cooperative multipoint transmission pattern.Other node in coordinate multipoint set can carry out cooperative multipoint transmission with said node transmitting on the identical running time-frequency resource of the running time-frequency resource of secondary sources with said node, and does not transmit data transmitting on the identical running time-frequency resource of the running time-frequency resource of primary sources with said node.Since this node can with can not being used to transmit on the running time-frequency resource of data and transmitting data of other node, so saved running time-frequency resource.

In embodiments of the present invention, the node in the coordinate multipoint set is example with the sub-district, and receiving terminal is that example describes embodiment with UE, but node and receiving terminal are not limited to cited example.

In embodiments of the present invention; Said first kind running time-frequency resource can be confirmed by said first node oneself; When perhaps this node is non-service node, can obtain first kind running time-frequency resource, also can get access to from central scheduling unit by said first node from service node; The running time-frequency resource information of all nodes in this coordinate multipoint set can be known in this central schedule unit, and this central schedule unit can be the network element of system side.

In embodiments of the present invention; The symbolic number on the time domain that if the symbolic number on the time domain that the control channel of said first node takies equals or take more than the control channel of said other node, said first kind running time-frequency resource comprise with said coordinate multipoint set in the identical running time-frequency resource of running time-frequency resource of pilot signal that is used to carry said other node of other node; Perhaps; If the symbolic number on the time domain that the control channel of said first node takies is less than the symbolic number on the time domain that the control channel of said other node takies, said first kind running time-frequency resource comprise with said coordinate multipoint set in other node to be used to carry the running time-frequency resource of RS of said other node identical with the running time-frequency resource that is used to carry said other control channel and can be used for the running time-frequency resource of said first node transmission data.

For example, in embodiments of the present invention, in the coordinate multipoint set, comprise 3 sub-districts, be respectively sub-district 1, sub-district 2 and sub-district 3.In the running time-frequency resource figure of 3 sub-districts shown in Figure 2, in each RB, the time domain direction comprises 14 symbols, can be designated as 0,1 respectively ..., 13, on frequency domain direction, comprise 12 number of sub-carrier, can be designated as 0,1 respectively ..., 11.It all is 1 that the pilot signal mouth is used in sub-district 1, sub-district 2 and sub-district 3.Suppose that first node is the sub-district 1 in the coordinate multipoint set, the RS of sub-district 1 is carried on respectively on the symbol 0,4,8 and 11 subcarrier 0,3,6 and 9 of time domain.The RS of the sub-district 2 in the set is carried on respectively on the subcarrier 1,4,7 and 10 in the symbol 0,4,8 and 11 of time domain, and the RS of sub-district 3 is carried on respectively on the subcarrier 2,5,8 and 11 in the symbol 0,4,8 and 11 of time domain.

If the symbolic number of the time domain that the control channel of sub-district 1, sub-district 2 and sub-district 3 takies is all identical; For example all be 1,2 or 3; In embodiments of the present invention; It is example that the symbolic number of the time domain that takies with the control channel of these 3 sub-districts all is 2; Then the running time-frequency resource that can not be used to transmit data of sub-district except that sub-district 12 and sub-district 3 comprises in coordinate multipoint set: the running time-frequency resource that the symbol 0,1 on the time domain of sub-district 2 takies, the subcarrier 4 and 10 on the time domain on the symbol 4 and 11, the subcarrier 1 and 7 on the time domain on the symbol 7; The running time-frequency resource that symbol 0,1 on the time domain of sub-district 3 takies, the symbol 5 and 11 on the time domain on the symbol 4 and 11, the subcarrier 2 and 8 on the symbol 7 on the time domain.Because the symbol 0 and 1 on the time domain of sub-district 1 is used for control channel, can not be used to transmit data, therefore; Sub-district 1 confirmable first kind resource comprises the subcarrier on the symbol 4 and 11 4,5,10 and 11 on the time domain; Subcarrier 1 on the time domain on the symbol 7; 2,7 and 8, shown in the dash area among Fig. 2 B.This moment then, second type of running time-frequency resource can for as among Fig. 2 B on time domain the running time-frequency resource of the blank parts the symbol 0 and 1.In embodiments of the present invention, when the pilot signal mouth that uses when the sub-district in the coordinate multipoint set is 2 or 4, can confirm first kind running time-frequency resource equally according to the method.

If the symbolic number of the time domain that the symbolic number of the time domain that the control channel of sub-district 1 takies takies less than other sub-district in the coordinate multipoint set, for example the symbolic number of the time domain that takies of the control channel of sub-district 1 and sub-district 2 is 2, and the symbolic number of the time domain that the control channel of sub-district 3 takies is 3; Then the running time-frequency resource that can not be used to transmit data of sub-district 2 comprises the running time-frequency resource that the symbol 0,1 on the time domain takies, the subcarrier 4 and 10 on the time domain on the symbol 4 and 11, the subcarrier 1 and 7 on the time domain on the symbol 7; The running time-frequency resource that can not be used to transmit data in the sub-district 3 comprises the running time-frequency resource that the symbol 0,1,2 on the time domain takies, the symbol 5 and 11 on the time domain on the symbol 4 and 11, the subcarrier 2 and 8 on the symbol 7 on the time domain; Therefore, for sub-district 1, first kind resource comprises the subcarrier on the symbol 4 and 11 4 on the time domain; 5,10 and 11, the subcarrier 1 on the time domain on the symbol 7; 2; 7 and 8, and the shared running time-frequency resource of symbol 2, shown in the dash area among Fig. 2 C.This moment then, second type of running time-frequency resource can for as among Fig. 2 C on time domain the running time-frequency resource of the blank parts the symbol 0 and 1, these running time-frequency resources may be used to sub-district 1, sub-district 2 and sub-district 3 and carry out cooperative multipoint transmission.In embodiments of the present invention, when the pilot signal mouth that uses when the sub-district in the coordinate multipoint set is 2 or 4, can confirm first kind running time-frequency resource equally according to the method.

The symbolic number of the time domain that other sub-district took during if the symbolic number of the time domain that the control channel of sub-district 1 takies was gathered more than coordinate multipoint; For example the symbolic number of the time domain that takies of the control channel of sub-district 1 is 3; The symbolic number of the time domain that the control channel of sub-district 2 and sub-district 3 takies is 2; Then the running time-frequency resource that can not be used to transmit data of sub-district except that sub-district 12 and sub-district 3 comprises in coordinate multipoint set: the running time-frequency resource that the symbol 0,1 on the time domain of sub-district 2 takies; Subcarrier 4 and 10 on the time domain on the symbol 4 and 11, the subcarrier 1 and 7 on the time domain on the symbol 7; The running time-frequency resource that symbol 0,1 on the time domain of sub-district 3 takies, the symbol 5 and 11 on the time domain on the symbol 4 and 11, the subcarrier 2 and 8 on the symbol 7 on the time domain.Because the symbol 0,1 and 2 on the time domain of sub-district 1 is used for control channel, can not be used to transmit data, therefore; Sub-district 1 confirmable first kind resource comprises the subcarrier on the symbol 4 and 11 4,5,10 and 11 on the time domain; Subcarrier 1 on the time domain on the symbol 7; 2,7 and 8, shown in the dash area among Fig. 2 D.This moment then, second type of running time-frequency resource can for as among Fig. 2 D on time domain the running time-frequency resource of the blank parts the symbol 0,1 and 2.In embodiments of the present invention, when the pilot signal mouth that uses when the sub-district in the coordinate multipoint set is 2 or 4, can confirm first kind running time-frequency resource equally according to the method.

In embodiments of the present invention, RS can be CRS, CSI-RS or demodulation (DM, demodulation) RS.

In embodiments of the present invention, no matter be the transmission primary sources, still transmit secondary sources, to those skilled in the art, can only transmit data being suitable for transmitting on the running time-frequency resource of data, this is conspicuous.

In embodiments of the present invention, all RS can transmit in the original position of RS, do not receive the influence of transfer of data.For example, as shown in Figure 2, for sub-district 1, the running time-frequency resource that carries RS comprises the subcarrier in the symbol 0,4,8 and 11 0,3,6 and 9 on the time domain.

In embodiments of the present invention; First node is when transmission primary sources and secondary sources; Other node in the multipoint cooperative set can except that the running time-frequency resource that carries RS, not carry out any operation on the time-domain symbol of time domain of carrying RS and non-bearing control channel.For example, as shown in Figure 2, when sub-district 1 when transmitting primary sources, RS can be sent on the subcarrier 4 and 10 in the symbol 4,11 in sub-district 2 on time domain, on remaining subcarrier 0,1,2,3,5,6,7,8,9 and 11, do not operate; RS is sent in sub-district 2 on the subcarrier on the symbol on the time domain 71 and 7, on remaining subcarrier 0,2,3,4,5,6,8,9,10 and 11, do not operate.Other node in the multipoint cooperative set can with first node together, on second type of running time-frequency resource with cooperative multipoint transmission mode transfer data.

In embodiments of the present invention; Said cooperative multipoint transmission (coordinated multipletransmission) pattern can be the JP mode; Said first node can transmit secondary sources according to the JP mode on second type of running time-frequency resource, i.e. other node in first node and the cooperative node set adopts the JP mode to transmit data on said second type of running time-frequency resource.Perhaps, can also adopt fast cell to select (dynamic cell selection) transmission means transmission data.Perhaps, said first node according to cooperative multipoint transmission mode transfer secondary sources, also can carry out single node transmission data for other node in first node and the cooperative node set separately on second type of running time-frequency resource on second type of running time-frequency resource.

In embodiments of the present invention, single cell transmission pattern refers to can be used for only using a sub-district to transmit the mode of data, can include but not limited to transmission modes such as transmit diversity, Closed-Loop Spatial Multiplexing.

In embodiments of the present invention, said primary sources can be identical packet with secondary sources, perhaps can be different packets, perhaps also can be the different pieces of information in the identical data packet.In embodiments of the present invention, not carrying out institute's transmission data limits.

In embodiments of the present invention, comprise service node and cooperative node in the coordinate multipoint set.Service node is the node that receiving terminal provides service, and cooperative node is meant the node of the said service node transmission of cooperation data, also is non-service node.Said first node can be said service node, can be configured by system; Perhaps, first node can be service node or the cooperative node that receiving terminal is confirmed according to the node selection mode, and receiving terminal is for receiving the communication equipment that said first node sends data; Perhaps; Said first node can be by node under the said receiving terminal service node or the cooperative node definite according to the node selection mode; In this case, said first node can be service node, also can be cooperative node; If first node is a cooperative node; Then this cooperative node carries out single node transmission mode transmission data and cooperative multipoint transmission mode transfer data, and service node and this coordinate multipoint other cooperative node in gathering with this cooperative node with coordinate multipoint mode transfer data, and do not carry out single node mode transfer data.

In embodiments of the present invention, running time-frequency resource can be RE or OFDM (OFDM) symbol (OS), and OS generally can take a plurality of subcarriers on frequency domain, and just several RE form an OS.

Like this; Each node in the coordinate multipoint set; Use non-MBSFN subframe to carry out adopting when the JP mode is transmitted the mixed transport data pattern; Be that the part running time-frequency resource adopts single node transmission mode transmission primary sources, the part running time-frequency resource adopts cooperative multipoint transmission mode transfer secondary sources, and the running time-frequency resource invariant position at the place of the RS in each cooperative node.

Fig. 4 A is the employing single node transmission mode that provides of the embodiment of the invention and a kind of running time-frequency resource sketch map of cooperative multipoint transmission mode data joint transmission, and on running time-frequency resource, carrying CRS with the sub-district in the coordinate multipoint set is example explanation, in the embodiment shown in Fig. 4 A; Comprise 3 sub-districts in the coordinate multipoint set, each sub-district is 4 antenna opening (four antenna ports), and the control channel of all sub-districts takies symbol 0 and 1 on the time domain; Sub-district 1 is carried out single node mode transfer data and cooperative multipoint transmission mode transfer data simultaneously, at subcarrier 0,3; Carry CRS on 6 and 9, sub-district 2 is at subcarrier 1,4; Carry CRS on 7 and 10; Sub-district 3 is at subcarrier 2,5, carries CRS on 8 and 11.Sub-district 2 is carried out cooperative multipoint transmission with sub-district 3 with sub-district 1.Primary sources are transmitted in sub-district 1 on determined first kind running time-frequency resource, second type of time-frequency transmitted over resources secondary sources.Sub-district 2 is carried out coordinate multipoint mode transfer data with sub-district 3 on the running time-frequency resource identical with said second type of running time-frequency resource, the running time-frequency resource invariant position at the CRS place of sub-district 1, sub-district 2 and sub-district 3, and R represents CRS among the figure.In Fig. 4 A; The running time-frequency resource that can not be used to transmit data in sub-district 2 and the sub-district 3 comprises running time-frequency resource that carries RS and the running time-frequency resource that is used for control channel; First kind running time-frequency resource also be comprise with sub-district 2 and sub-district 3 in can not be used to transmit the identical and running time-frequency resource that can be used for sub-district 1 transmission data of the video resource of data (promptly for sub-district 1; Do not comprise symbol 0 on the time domain of carrying control channel and 1 shared running time-frequency resource); Also be the running time-frequency resource that Fig. 4 A bend dash area is represented, the RE that the grid dash area is represented is used to transmit some specific control information, can't transmit data.In Fig. 4 A, except that first kind running time-frequency resource and sub-district 1, sub-district 2 and 3 all transmit the second type of running time-frequency resource that be of data, also be the running time-frequency resource of the blank parts among Fig. 4 A.

Equally; When sub-district 2 is carried out single node transmission mode transmission data and cooperative multipoint transmission mode transfer data simultaneously; The running time-frequency resource that the running time-frequency resource that first kind running time-frequency resource can the diagonal line hatches shown in Fig. 4 B be partly represented, second type of running time-frequency resource can the grid dash area shown in Fig. 4 B be represented.At this moment, the multipoint cooperative transmission can be carried out with said sub-district 2, the running time-frequency resource invariant position at the CRS place of sub-district 1, sub-district 2 and sub-district 3 in sub-district 1 and sub-district 3 on the identical running time-frequency resource of the running time-frequency resource of representing with grid dash area shown in Fig. 4 B.

Equally; When sub-district 3 is carried out single node transmission mode transmission data and cooperative multipoint transmission mode transfer data simultaneously; The running time-frequency resource that the running time-frequency resource that first kind running time-frequency resource can the diagonal line hatches shown in Fig. 4 C be partly represented, second type of running time-frequency resource can the grid dash area shown in Fig. 4 C be represented.At this moment, the multipoint cooperative transmission can be carried out with said sub-district 3, the running time-frequency resource invariant position at the CRS place of sub-district 1, sub-district 2 and sub-district 3 in sub-district 1 and sub-district 2 on the identical running time-frequency resource of the running time-frequency resource of representing with grid dash area shown in Fig. 4 C.

Certainly; Other nodes in the coordinate multipoint set also can adopt the RS of the RE transmission other types of blank expression; At this moment, after first node detects the RE of other node transmission other types RS, also adopt the RE of the RS of corresponding these transmission other types; Adopt single node transmission mode transmission primary sources, do not show in the drawings.

In embodiments of the present invention, each node in each node in the coordinate multipoint set all is that two types of receiving terminals provide service, and one type of receiving terminal for employing single node transmission mode can only receive the data that adopt the transmission of single node transmission mode; Another kind of for adopting the receiving terminal of cooperative multipoint transmission pattern, can receive data that adopt the cooperative multipoint transmission mode transfer and the data that adopt the transmission of single node transmission mode simultaneously.Because the invariant position when adopting single node transmission mode transmission data in each node in the coordinate multipoint set on running time-frequency resource; So for the receiving terminal that adopts the single node transmission mode; As long as adopt the single node transmission mode to receive the data of being transmitted, be not affected for the channel measurement of running time-frequency resource etc.For the receiving terminal that adopts the cooperative multipoint transmission pattern; Owing to can receive data that adopt the cooperative multipoint transmission mode transfer and the data that adopt the transmission of single node transmission mode simultaneously; So can measure SINR according to the primary sources that adopt non-cooperative multipoint transmission mode transmission; Secondary sources according to adopting the cooperative multipoint transmission mode transmission are measured SINR; After merging these two SINR then, the channel quality indication (CQI, Channel Quality Indicator) that obtains the corresponding SINR of merging reports the service node of receiving terminal.

Here; Merge these two SINR and can adopt the effective SINR mapping of index (EESM; Exponential Effective SIR Mapping) mode or mutual information (MI; Mutual Information) mode, wherein, the EESM mode adopts formula

to merge.In formula, γ _EffBe the SINR that obtains after merging, γ _kBe the SINR of each subband of k, N _uBe total subband number, β is the different parameters of the corresponding different transmission meanss that are provided with, and this parameter fits through link simulation and obtains.

For the receiving terminal that adopts the cooperative multipoint transmission pattern; Receive data that adopt the cooperative multipoint transmission mode transfer and the data that adopt the transmission of single node transmission mode simultaneously; If these two kinds of transmission meanss all adopt the Closed-Loop Spatial Multiplexing transmission means, then also need report two kinds of transmission modes corresponding pre-coding matrix indication (PMI) or channel space information feedback informations such as (CSI).Give the correct time last, the time-frequency domain density that sets than prior art set low, just on the frequency patterns mapping PMI or CSI the time frequency symbol density reduce, thereby the expense that can guarantee communication system is smaller.

Like this, network side can be according to the CQI that receives, the employing cooperative multipoint transmission pattern of obtaining and the employing single node transmission mode of obtaining in the enterprising data transfer of determined running time-frequency resource.If have the PMI of single node transmission mode or the PMI or the CSI of CSI and cooperative multipoint transmission pattern respectively, then also according to the PMI of this single node transmission mode or CSI with according to the PMI or the CSI transmission data of this cooperative multipoint transmission pattern.

Single node transmission mode and cooperative multipoint transmission pattern are that said node and receiving terminal are consulted to be provided with in advance, or the definite back of said node notice receiving terminal.

For the receiving terminal that adopts the cooperative multipoint transmission pattern; When receiving data; To secondary sources that adopt the cooperative multipoint transmission mode transfer and the primary sources that adopt the transmission of single node transmission mode, when receiving running time-frequency resource, at first after the equilibrium; Carry out again obtaining primary sources and secondary sources behind the demodulating and decoding, when carrying out equilibrium, can adopt DM RS to carry out.

Data aggregate transmission method two flow charts that Fig. 5 provides for the embodiment of the invention, this method comprises:

Step 501, receiving terminal be received on the first kind running time-frequency resource, with the primary sources of single node transmission mode transmission, and on second type of running time-frequency resource, with the secondary sources of cooperative multipoint transmission mode transfer; Said primary sources are sent by the first node in the coordinate multipoint set; Said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data; Said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all node transmission data in the said coordinate multipoint set, comprises interstitial content more than or equal to 2 in the said coordinate multipoint set;

In embodiments of the present invention, this receiving terminal can be for adopting the receiving terminal of cooperative multipoint transmission pattern.Step 502, said receiving terminal carry out equilibrium to the primary sources on the said first kind running time-frequency resource; Secondary sources on said second type of running time-frequency resource are carried out equilibrium; To the demodulation of decoding of the primary sources after the equilibrium and the secondary sources after the equilibrium, obtain said primary sources and said secondary sources.

In the present embodiment; Receiving terminal also is used for the SINR of transmission data under the Signal to Interference plus Noise Ratio SINR of transmission data under the single node transmission mode and the cooperative multipoint transmission pattern is merged; SINR after obtaining merging; SINR according to after the said merging obtains channel quality indicator (CQI), said CQI is reported the service node of said receiving terminal.

In the present embodiment, receiving terminal can also be measured the PMI or the CSI of transmission data under the single node transmission mode, and reports the service node of said receiving terminal; Perhaps, receiving terminal can also be measured the PMI or the CSI of transmission data under the cooperative multipoint transmission pattern, and reports the service node of said receiving terminal; Perhaps, receiving terminal can also be measured the PMI or the CSI of transmission data under the said single node transmission mode, and the PMI or the CSI that measure transmission data under the cooperative multipoint transmission pattern, and reports the service node of receiving terminal.

In this embodiment; If adopting the cooperative multipoint transmission pattern is the Closed-Loop Spatial Multiplexing mode; The single node transmission mode is defeated for the single antenna oral instructions, when transmit diversity transmission or other do not need the transmission mode of DM RS; When the primary sources on the running time-frequency resource and secondary sources were carried out equilibrium, the DM RS of first node transmission just included only to the DM RS that adopts cooperative multipoint transmission mode transfer data demodulates.If adopt the single node transmission mode to need the pattern of DM RS; When the transmission of the employing single node transmission mode on running time-frequency resource primary sources are carried out equilibrium; Adopt the DM RS of the receiving terminal transmission of single node transmission mode to comprise and adopt cooperative multipoint transmission pattern pilot signal and adopt single node transmission mode pilot signal, the transmission means of employing can for: the running time-frequency resource that DM RS is shared is divided into two parts, (for example is carried on different running time-frequency resources; RE; Or OS etc.), a part of DM RS is for adopting single node transmission mode demodulated pilot signal, and another part DM RS is for adopting cooperative multipoint transmission pattern demodulated pilot signal; Each RE in perhaps that DM RS is the shared running time-frequency resource adopts the single node transmission mode and adopts cooperative multipoint transmission pattern demodulated pilot signal; DMRS is carried on the different layers of identical running time-frequency resource; Be called layering, the DM RS that takies different layers can distinguish through scrambler, orthogonal code or sequence orthogonal manner etc.

Fig. 6 comprises first node and receiving terminal for the data aggregate transmission system sketch map that the embodiment of the invention provides, wherein,

First node; Be used for confirming first kind running time-frequency resource; Said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data, comprise interstitial content more than or equal to 2 in the said coordinate multipoint set; On said first kind running time-frequency resource, according to single node transmission mode transmission primary sources; On second type of running time-frequency resource according to cooperative multipoint transmission mode transfer secondary sources; Said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all nodes transmission data in the said coordinate multipoint set, said primary sources identical with secondary sources or different;

Receiving terminal; Be used for being received in the primary sources of the single node transmission mode transmission on the first kind running time-frequency resource and the secondary sources of the cooperative multipoint transmission mode transfer on second type of running time-frequency resource from first node; Carry out equilibrium and decoding demodulation, obtain primary sources and secondary sources.

In embodiments of the present invention; Said receiving terminal can also be used for the SINR of transmission data under the Signal to Interference plus Noise Ratio SINR of transmission data under the single node transmission mode and the cooperative multipoint transmission pattern is merged; SINR after obtaining merging; SINR according to after the said merging obtains channel quality indicator (CQI), said CQI is reported the service node of said receiving terminal.Receiving terminal can also be measured the pre-coding matrix of transmission data under the single node transmission mode and indicate feedback information PMI or CSI such as PMI or channel space information CSI, and reports the service node of said receiving terminal; And/or said receiving terminal is measured the PMI or the CSI of transmission data under the cooperative multipoint transmission pattern, and reports the service node of said receiving terminal.

Communicator one sketch map that Fig. 7 provides for the embodiment of the invention; Comprise: confirm the running time-frequency resource unit; Be used for confirming first kind running time-frequency resource; First kind running time-frequency resource is sent to the Resources allocation end, said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data, comprise interstitial content more than or equal to 2 in the said coordinate multipoint set;

Transmission unit; Be used at said first kind running time-frequency resource; According to single node transmission mode transmission primary sources; And be used on second type of running time-frequency resource according to cooperative multipoint transmission mode transfer secondary sources, said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all nodes transmission data in the said coordinate multipoint set, said primary sources identical with secondary sources or different.

In this embodiment, also comprise: transmission mode is confirmed the unit, is used for confirming single node transmission mode and cooperative multipoint transmission pattern, offers transmitting element; Said transmitting element also is used for according to the single node transmission mode transmission primary sources of confirming that from transmission mode the unit receives, according to the cooperative multipoint transmission mode transfer secondary sources of confirming that from transmission mode the unit receives.

In this embodiment; Said definite running time-frequency resource unit further is further used for if the symbolic number on the time domain that the control channel of said first node takies is identical with symbolic number on the time domain that the control channel of said other node takies, confirm and said coordinate multipoint gather in the identical running time-frequency resource of running time-frequency resource of pilot signal that is used to carry said other node of other node be first kind running time-frequency resource; Perhaps; Said definite running time-frequency resource unit further is further used for if the symbolic number on the time domain that the control channel of said first node takies is less than the symbolic number on the time domain that the control channel of said other node takies, confirm said first kind running time-frequency resource comprise with said coordinate multipoint set in other node to be used to carry the running time-frequency resource of RS of said other node and running time-frequency resource that can be used for said first node transmission data identical with the running time-frequency resource that is used to carry said other control channel be first kind running time-frequency resource.

Fig. 8 comprises receiving element for communicator two sketch mapes that the embodiment of the invention provides, balanced unit and demodulating and decoding unit, wherein,

Receiving element, be received on the first kind running time-frequency resource, with the primary sources of single node transmission mode transmission, and on second type of running time-frequency resource, with the secondary sources of cooperative multipoint transmission mode transfer; Said primary sources are sent by the first node in the coordinate multipoint set; Said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data; Said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all node transmission data in the said coordinate multipoint set, comprises interstitial content more than or equal to 2 in the said coordinate multipoint set;

Balanced unit carries out equilibrium to the primary sources on the said first kind running time-frequency resource, and the secondary sources on said second type of running time-frequency resource are carried out equilibrium;

The demodulating and decoding unit is used for that said balanced unit is carried out primary sources and secondary sources after the equilibrium and carries out demodulating and decoding and handle, and obtains primary sources and secondary sources.

In this embodiment, this device can also comprise:

Acquiring unit is used for the SINR of transmission data under SINR that transmits data under the single node transmission mode and the cooperative multipoint transmission pattern is merged, and obtains channel quality indicator (CQI) according to the SINR after merging;

Report the unit, be used for the CQI that acquiring unit obtains is reported the service node of said communicator.

At this embodiment, the said unit that reports can also be used to report the PMI or the CSI that transmit data under the single node transmission mode, and/or, the PMI or the CSI of transmission data under the cooperative multipoint transmission pattern.

The embodiment of the invention also provides a kind of communication equipment; This communication equipment comprises: processor; Be used for confirming first kind running time-frequency resource; Said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data, comprise interstitial content more than or equal to 2 in the said coordinate multipoint set; And be used for confirming that second type of running time-frequency resource, said second type of running time-frequency resource are beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all node transmission data in the said coordinate multipoint set; This communication equipment comprises that also memory and said processor are coupled.

This communication equipment can also comprise reflector; Be used at the definite first kind running time-frequency resource of said processor; According to single node transmission mode transmission primary sources; According to cooperative multipoint transmission mode transfer secondary sources, said primary sources can be identical with secondary sources on second type of running time-frequency resource, also can be different.

The system that provides in the embodiment of the invention can be used to the method embodiment that realizes that the embodiment of the invention provides with device.

Be described further in the face of the embodiment of the invention down.

In embodiments of the present invention; First node in the coordinate multipoint set is when adopting single node transmission mode transmission data; Can adopt but be not limited to the Closed-Loop Spatial Multiplexing mode; When adopting cooperative multipoint transmission mode transfer data, can adopt the JP mode, receiving terminal is for adopting cooperative multipoint transmission pattern UE.

At first; UE can be according to adopting single node transmission mode transmission data running time-frequency resource to calculate PMI or CSI under the Closed-Loop Spatial Multiplexing mode; According to adopting cooperative multipoint transmission mode transfer data running time-frequency resource to calculate PMI or CSI under the JP mode; Adopt Physical Uplink Control Channel (PUCCH then; PhysicalUplink Control Channel) or PMI or the CSI of Physical Uplink Shared Channel (PUSCH, Physical Uplink ShareChannel) will adopt single node transmission mode transmission data respectively the time, and PMI or CSI when adopting cooperative multipoint transmission mode transfer data feed back to service node.

Then; UE can be according to adopting single node transmission mode transmission data running time-frequency resource to calculate the SINR under the Closed-Loop Spatial Multiplexing mode; According to adopting cooperative multipoint transmission mode transfer data running time-frequency resource to calculate the SINR under the JP mode; Adopt EESM or MI method that two types of SINR are merged SINR of equivalence then, merge SINR of equivalence corresponding to CQI, the CQI that this is corresponding feeds back to first node under this UE.

Resource allocation unit under the UE is when carrying out time-frequency resource allocating, and the CQI that feeds back according to UE carries out.When the affiliated first node of this employing single node transmission mode UE carries out time-frequency resource allocating; After confirming first running time-frequency resource; The running time-frequency resource that the employing single node transmission mode transmission data that send to this UE can be used for transmitting data on first running time-frequency resource; Adopt the Closed-Loop Spatial Multiplexing mode to transmit, on second running time-frequency resource, adopt cooperative multipoint transmission mode transfer data, adopt the JP mode to transmit.

After this UE receives running time-frequency resource; To after having running time-frequency resource that adopts single node transmission mode transmission data and the running time-frequency resource that employing cooperative multipoint transmission mode transfer data are arranged to carry out equilibrium, carry out data and the data that adopt the cooperative multipoint transmission mode transfer that demodulating and decoding obtains adopting the transmission of single node transmission mode more respectively according to DM RS.

This UE is in carrying out demodulating process; Use transmit diversity mode or single antenna mouth mode and do not need demodulated pilot signal (DM RS) to carry out equilibrium in the single node transmission mode; But when carrying out equilibrium according to PMI; Can DM RS be used to adopt the equilibrium of cooperative multipoint transmission mode transfer data, the DM RS of node transmission just is to adopting cooperative multipoint transmission mode transfer data.When under other transmission modes when adopting single node transmission mode transmission data to need DM RS to carry out equilibrium; Just need the DM RS that node sends be divided into two parts, two parts DM RS is carried on different running time-frequency resources (for example, RE; Or OS etc.) on; A part is to the equilibrium of adopting single node transmission mode transmission data, and another part is used to adopt the equilibrium of cooperative multipoint transmission mode transfer data, perhaps is divided into DM RS two-layer; One deck is used to adopt the equilibrium of single node transmission mode transmission data; Another layer is used to adopt the equilibrium of cooperative multipoint transmission mode transfer data, and two-layer DM RS promptly is carried on the different layers of identical running time-frequency resource on identical running time-frequency resource.Can distinguish through different scramblers, orthogonal code or sequence orthogonal manner etc.

In another embodiment of the present invention, the node in the coordinate multipoint set can adopt transmit diversity mode or single antenna mouth mode when adopting single node transmission mode transmission data, when adopting cooperative multipoint transmission mode transfer data, can adopt the JP mode.Receiving terminal is for adopting cooperative multipoint transmission pattern UE.

At first; UE can be according to adopting single node transmission mode transmission data running time-frequency resource to calculate under the transmit diversity mode or the SINR under the single antenna mouth mode; According to adopting cooperative multipoint transmission mode transfer data running time-frequency resource to calculate the SINR under the JP mode; Adopt EESM or MI method that two types of SINR are merged SINR of equivalence then, CQI that should correspondence behind the corresponding CQI feeds back to service node.

In addition, UE can be according to adopting cooperative multipoint transmission mode transfer data running time-frequency resource to calculate PMI or CSI under the JP mode, and PMI or CSI when adopting PUSCH will adopt cooperative multipoint transmission mode transfer data then feed back to service node.

Resource allocation unit is when carrying out time-frequency resource allocating under the UE, and the CQI that feeds back according to UE carries out.When the service node of these employing single node transmission mode transmission data UE carries out time-frequency resource allocating; After confirming that corresponding other nodes have the running time-frequency resource of RS in the coordinate multipoint set; The single node that sends to this UE is transmitted data on determined running time-frequency resource; Adopt diversity transmitting formula or single antenna oral instructions defeated, multinode transmission data adopt the JP mode to transmit on remaining running time-frequency resource.

Resource allocation unit is when carrying out time-frequency resource allocating under the UE, and the CQI that feeds back according to UE carries out.When the affiliated first node of this employing single node transmission mode UE carries out time-frequency resource allocating; After confirming first running time-frequency resource; The running time-frequency resource that the employing single node transmission mode transmission data that send to this UE can be used for transmitting data on first running time-frequency resource; Adopt the Closed-Loop Spatial Multiplexing mode to transmit, after adopting cooperative multipoint transmission mode transfer data on second running time-frequency resource, adopt the JP mode to transmit.

After this UE receives running time-frequency resource; To after having running time-frequency resource that adopts single node transmission mode transmission data and the running time-frequency resource that employing cooperative multipoint transmission mode transfer data are arranged to adopt DM RS to carry out equilibrium, carry out data and the data that adopt the cooperative multipoint transmission mode transfer that demodulating and decoding obtains adopting the transmission of single node transmission mode more respectively.Identical among concrete process and the said method embodiment, repeat no more here.

The embodiment of the invention also provides a kind of data transmission method, and is as shown in Figure 9, and said method comprises:

Step 901: network side notifies data transfer mode to UE;

Step 902: said network side will send to said UE with the relevant information that said data transfer mode is carried out transfer of data; Said relevant information comprises the resource information of carrying out the running time-frequency resource of transfer of data with said data transfer mode, and the nodal information that uses the node of said running time-frequency resource.

In the method that present embodiment provides; After network side sends to said UE with data transfer mode and with the relevant information of transfer of data; Network side can transmit data to UE, and network side can transmit data to UE on the running time-frequency resource according to said output transmission means and correspondence.

According to the method that the embodiment of the invention provides, the efficient to UE transmission data can be provided.

In the method that present embodiment provides; Node in the coordinate multipoint set can carry out the transfer of data of different modes; For example the node in the coordinate multipoint set can carry out on the running time-frequency resource of single node transmission data being fit to; Transmit data according to the single node transmission means, also promptly carry out the single node transmission, the single node transmission means can be that use single node such as single node transmit diversity, single node CDD, the space division multiplexing of single node closed loop are carried out data transmission manner in the present embodiment; Also can be that part of nodes transmits on the running time-frequency resource of data at suitable part of nodes in the coordinate multipoint set, transmit data, also promptly carry out joint transmission according to the Combined Treatment mode; Perhaps, all nodes in the coordinate multipoint set can transmit on the running time-frequency resource of data at suitable all nodes, transmit data according to the Combined Treatment mode.For example, comprise 3 nodes in the coordinate multipoint set, be respectively node 1, node 2 and node 3.For a specific RE in the Resource Block, this RE only is fit to node 1 and carries out transfer of data, and then this node 1 carries out the single node transmission on this RE.If transmit with node 2 to be used for node 1 only on the RE, then node 1 can carry out the joint transmission data according to the Combined Treatment mode with node 2.If a RE can be used for all node transmission data of this coordinate multipoint set, then node 1, node 2 and node 3 can carry out the joint transmission data according to the Combined Treatment mode on this RE.

In the present embodiment; Node in the coordinate multipoint set is when transmitting data; Can transmit with above-mentioned a kind of mode, also can transmit with above-mentioned multiple mode simultaneously, for example; Data transfer mode can comprise: in the coordinate multipoint set, all nodes transmit data according to the Combined Treatment mode; Perhaps, in the coordinate multipoint set, part of nodes transmits data according to the Combined Treatment mode; Perhaps, all nodes transmit data according to the Combined Treatment mode in the coordinate multipoint set, and simultaneously, part of nodes transmits data according to the Combined Treatment mode in this coordinate multipoint set; Perhaps, all nodes in the coordinate multipoint set transmit data according to the Combined Treatment mode, and simultaneously, the node in this coordinate multipoint set is according to single node transmission means transmission data; Perhaps; All nodes transmit data according to the Combined Treatment mode in the coordinate multipoint set; Simultaneously, part of nodes can transmit data according to the Combined Treatment mode in this coordinate multipoint set, and the node in this coordinate multipoint set can transmit data according to the single node transmission means; Perhaps, part of nodes transmits data according to the Combined Treatment mode in the coordinate multipoint set, and simultaneously, the node in this coordinate multipoint set can be according to single node transmission means transmission data or the like.Said part of nodes comprises two nodes at least.

For example, comprise 3 sub-districts in the cooperative node set, be respectively sub-district 1, sub-district 2 and sub-district 3.The data-transmission mode that then is used for transfer of data can comprise: sub-district 1, sub-district 2 and sub-district 3 are carried out the Combined Treatment mode and are transmitted, and send data to UE; Perhaps, sub-district 1, sub-district 2 and sub-district 3 are carried out the Combined Treatment mode and are transmitted on the part running time-frequency resource, simultaneously; Two sub-districts on another part running time-frequency resource in these 3 sub-districts are carried out the Combined Treatment mode and are transmitted; Like sub-district 1 and sub-district 2, sub-district 1 and sub-district 3 or sub-district 2 are carried out the Combined Treatment mode with sub-district 3 and are transmitted, and send data to UE; The Combined Treatment mode is carried out when transmitting in the part sub-district; Can exist a plurality of parts sub-district to carry out the Combined Treatment mode and transmit, for example carry out when the Combined Treatment mode transmits sub-district 1 and sub-district 3 on the part running time-frequency resource, and sub-district 2 also can be carried out the Combined Treatment mode with sub-district 3 and transmitted on another part running time-frequency resource; Perhaps; 3 sub-districts are carried out the Combined Treatment mode and are transmitted on the part running time-frequency resource; Simultaneously; Sub-district 1, sub-district 2 or sub-district 3 are carried out the single node transmission separately on another part running time-frequency resource, and when carrying out the single node transmission, different sub-districts can be carried out the single node transmission respectively on different running time-frequency resources; Perhaps, 3 sub-districts are carried out the Combined Treatment mode and are transmitted on the part running time-frequency resource, simultaneously; Two sub-districts on another part part running time-frequency resource in 3 sub-districts are carried out the Combined Treatment mode and are transmitted, and sub-district 1, sub-district 2 or sub-district 3 are carried out the single node transmission separately on the running time-frequency resource beyond the above resource; Or the like; In the present embodiment, do not illustrate one by one, but be not restricted to this for data-transmission mode.

In the present embodiment, network side can the specified data transmission means, for example, and can be according to Reference Signal Received Power (reference signal received power, RSRP) the specified data transmission mode of the node of UE in the coordinate multipoint set.For example; Can be with the signal that UE receives the strongest sub-district is as the strongest sub-district of this UE; Confirm that UE arrives the RSRP of a plurality of sub-districts in the coordinate multipoint set, and UE is to this RSRP of strong sub-district, the RSRP of sub-district the most by force of each RSRP and this UE is compared; If between gap when being lower than predetermined thresholding, then this sub-district can join and comprise this strongest sub-district and get into Combined Treatment mode transmission mode in interior coordinate multipoint set.

The coordinate multipoint set can be the predefined coordinate multipoint set of system; Also can be from predefined coordinate multipoint set, to select a sub-set; As being directed against each UE; Select corresponding coordinate multipoint set according to it to each sub-district RSRP and predefine thresholding, be not restricted to this in the present embodiment.

In embodiments of the present invention, network side can be issued this UE with the relevant information of carrying out transfer of data with said data transfer mode.This relevant information of carrying out transfer of data with said data transfer mode can comprise the resource information of carrying out the running time-frequency resource of transfer of data with said data transfer mode, and the nodal information that uses the node of said running time-frequency resource.

In the present embodiment; Whether the resource information of carrying out the running time-frequency resource of transfer of data with said data transfer mode can be used for the information of transfer of data for indicating specific running time-frequency resource; For example, indicate specific RE whether can be used for transfer of data, or whether can be used for transfer of data on the specific time-domain symbol; Or whether can transmit data in the RE set, and whether be determined or dispatch and be used to transmit data etc.

In the present embodiment; Can be called first running time-frequency resource with being used for the running time-frequency resource that coordinate multipoint set node carries out the single node transmission according to the single node transmission means; To be used for the running time-frequency resource that all nodes of coordinate multipoint set transmit data according to the Combined Treatment mode and be called second running time-frequency resource, will be used for the running time-frequency resource that coordinate multipoint set part of nodes transmits data according to the Combined Treatment mode and be called the 3rd running time-frequency resource.The running time-frequency resource that is used for carrying out transfer of data according to said data transfer mode can be different for different data transfer modes.For example, transmit for all nodes in the coordinate multipoint set carry out the Combined Treatment mode when the established data transmission means, the running time-frequency resource that then is used for transfer of data is second running time-frequency resource, and then the resource information with second running time-frequency resource sends to UE; If the established data transmission means is that all nodes carry out the Combined Treatment mode and transmit in the coordinate multipoint set; Simultaneously; Part of nodes carries out the Combined Treatment mode and transmits in the set of this coordinate multipoint; The running time-frequency resource that then is used for transfer of data is second running time-frequency resource and the 3rd running time-frequency resource, then the resource information of second running time-frequency resource and the resource information of the 3rd running time-frequency resource is sent to said UE; Carry out the Combined Treatment mode and transmit if the established data transmission means is all nodes in the coordinate multipoint set; Simultaneously; Node in this coordinate multipoint set carries out the single node transmission, and the running time-frequency resource that then is used for transfer of data is that the resource information of second running time-frequency resource and first running time-frequency resource sends to UE; If the established data transmission means is that all nodes carry out the Combined Treatment mode and transmit in the coordinate multipoint set; Simultaneously; Part of nodes carries out the Combined Treatment mode and transmits in the set of this coordinate multipoint; And the node in this coordinate multipoint set carries out the single node transmission; The running time-frequency resource that then is used for transfer of data comprises first running time-frequency resource, second running time-frequency resource and the 3rd running time-frequency resource, at this moment, the resource information of first running time-frequency resource, the resource information of second running time-frequency resource and the resource information of the 3rd running time-frequency resource is sent to UE.

Whether the running time-frequency resource that in the present embodiment, is used for transfer of data can be used for transfer of data according to the RE on all or part time by network side is confirmed; Perhaps, can in transmission, whether be used to transmit data from the RE that scheduler obtains the time, for example, some resources can be used for transmitting data, but scheduler can be according to reasons such as adjacent cell channel measurements, then not in these transmitted over resources data.In the present embodiment; Confirm on some RE, to use all node transmission data in the coordinate multipoint set; On some RE, use part of nodes transmission data in the coordinate multipoint set; On some RE, use certain node transmission data in the coordinate multipoint set, confirmed simultaneously corresponding RE goes up which node of use and uses which kind of data transfer mode that UE is carried out transfer of data.

In the present embodiment, when whether definite RE can be used for the running time-frequency resource of transfer of data,, can confirm that then RE generally is not used in the transmission data if when RE occurring and being used for following situation, for example:

(1) configuration of the cycle of CSI RS (Channel-State Information Reference Signal) and quiet (muting) configuration, the CSI RS of each node maybe be different with the muting configuration.CSI RS configuration and muting configuration can be configured through semi-static mode.The RE that node need transmit CSI RS or muting does not generally transmit data.

The RE of transmission CSI RS can not be used to transmit data, is set to the RE of muting, and the RE that also promptly transmits zero energy CSI RS can not be used to transmit data.CSI RS has the time domain cycle, and the CSI RS of each node in the coordinate multipoint set and the time domain cycle of muting maybe be different.

When being configured through semi-static mode, can be according to the advice method of CSI RS and muting, with in the coordinate multipoint set beyond the service node and CSI RS and the muting configuration information signaling of node that possibly transmit data for UE to UE.

(2) near empty subframe (almost blank subframe, ABS) configuration.The ABS configuration that each node uses maybe be different.The ABS configuration can be configured through semi-static mode.Node can not transmit data on the RE of ABS.

ABS has the time domain cycle, and like 40ms, the part subframe (each subframe is 1ms) in the 40ms can be configured to ABS, can not be used to transmit data.40ms week after date possibly change, and the ABS that coordinate multipoint combines is provided with the possibility difference.Can be according to the advice method of ABS, in the signaling UE coordinate multipoint set beyond the service node and possibly transmit the corresponding A BS configuration of the node of data for UE.

(3) Physical Broadcast Channel (physical broadcast channel, PBCH), primary synchronization channel (primary synchronization channel, PSCH) or auxiliary synchronization channel (secondarysynchronization channel, configuration SSCH).The PBCH of each node, PSCH and SSCH maybe be different.Node does not generally transmit data being used to transmit on the RE of PBCH, PSCH and SSCH.

The cycle of PBCH is 40ms, wherein only take wherein the part symbol among 4 subframe, and PSCH and SSCH only takies the part symbol among every 10ms respectively.And on frequency domain, PBCH and PSCH, SSCH only take near some subcarriers the center frequency point and not necessarily take whole bandwidth.PBCH and PSCH, SSCH generally are not used in the transmission data.Can notify in the UE coordinate multipoint set beyond the service node and possibly transmit the time-frequency position configuration of corresponding PBCH, PSCH or SSCH of the node of data through semi-static mode for UE.

(4) configuration of PDCCH.The PDCCH symbolic number that each node uses maybe be different.The PDCCH symbolic number that use each sub-district can be configured through dynamical fashion.Generally do not transmit data on the RE of transmission PDCCH.

Can will be for beyond the service node in the coordinate multipoint set and maybe to transmit the symbolic number of PDCCH of node of data logical to UE for UE through signaling; For example; (physical control format indicator channel, mode PCFICH) is transferred to UE with the PDCCH symbolic number can to pass through similar physical control format indicating channel.

(5) configuring ports of DM RS.The port number of the DM RS that each node uses maybe be different.The DM RS port number that each node uses can be configured through dynamical fashion.The RE of transmission DM RS generally is not used in the transmission data.

The port number of DM RS can indicated in the coordinate multipoint set beyond the service node and possibly use for the node that UE transmit data to the DM RS port number that uses at each node through signaling not simultaneously, for example, and the mode of similar DCI.

The various configurations of different nodes maybe be different and cause whether can transmitting data and difference for some RE in the coordinate multipoint set, are not limited to above giving an example.

In the present embodiment; Each node can have different CRS and PDCCH symbolic number, and therefore, each node has the different resources operating position; Can use the node transmission in all coordinate multipoint set on the part RE, and only use the single node transmission in the coordinate multipoint set on the part RE.At this moment, also can produce the part of nodes transmission in the coordinate multipoint set, for example; In the coordinate multipoint set 3 nodes are arranged, be respectively node 1, node 2 and node 3, wherein; The CRS of node 1 and node 2 is consistent in the biasing (offset) of frequency domain, and node 1 is inconsistent at the offset of frequency domain with the CRS of node 3, and the PDCCH symbolic number of node 1 is 1; The PDCCH symbolic number of node 2 is 2, and the PDCCH symbolic number of node 3 is 3.14 symbols are arranged on the time domain of a time, and numbering is respectively 0～13.Node 3 need transmit PDCCH on symbol 2, then on some RE on the symbol 2 of time domain, can use node 1 to transmit data and carry out the Combined Treatment mode with node 2 and transmit; On the symbol 1 of time domain, node 2 needs transmission PDCCH with node 3, and the part RE on the then symbol 1 can use node 1 transmission data and carry out the single-node data transmission; And on symbol 3～13; Node 1 need can use node 3 to carry out the single node transmission on the RE of transmission CRS with node 2; And node 3 needs the RE of transmission CRS to go up can to use node 1 and node 2 to carry out the Combined Treatment mode to transmit, and node 1, node 2 and node 3 can transmit and can use 3 nodes to carry out the Combined Treatment mode together on the RE of data to transmit.

In the present embodiment, the running time-frequency resource that can be used to transmit data not necessarily can be used, and produces and disturbs because use running time-frequency resource transmission data to understand other sub-districts.In practical application, can be based on reasons such as scheduling of resource or system designs, in order to reduce the interference to the adjacent area, some running time-frequency resources maybe be in some sub-district by vacant.

In the present embodiment, cause part RE can not transmit data,, therefore, the restriction of running time-frequency resource use on the subframe that disposes CSI RS and muting, can occur because the configuration of CSI RS and muting all is the cycle for the configuration of CSI RS and muting.

In the present embodiment, for the configuration of ABS, when node when a sub-frame is used ABS, whole subframe can not be used to transmit data.The restriction that running time-frequency resource uses can appear in the subframe that therefore, is configured to ABS.

In the present embodiment, for the configuration of DM RS, when being configured above two DM RS ports; Like 4 DM RS ports, the RE quantity that need take can be the twice of the RE quantity during smaller or equal to two DM RS ports, for example; When the cooperative node set comprises 3 nodes; If it is 2 that node 1 and 2 uses DM RS port number, the DM RS port number that node 3 uses is 4 o'clock, and the RE that is then taken by latter two DM RS port of node 3 can not be used to transmit data.

In the present embodiment, the resource information that network side will be used to transmit the running time-frequency resource of data sends to outside the UE, can also the nodal information that use this running time-frequency resource to carry out the node of transfer of data be informed to UE.For example; All nodes transmit data according to the Combined Treatment mode in the coordinate multipoint set on second running time-frequency resource; Part of nodes transmits data according to the Combined Treatment mode in this coordinate multipoint set on the 3rd running time-frequency resource simultaneously; Then network side also will use the nodal information of the node of said second running time-frequency resource in that the resource information of second running time-frequency resource and the resource information of the 3rd running time-frequency resource are sent to outside the UE, and use the nodal information of the node of the 3rd running time-frequency resource to send to UE.Nodal information can be the number of the node that uses running time-frequency resource, and/or for the node identification of the node that uses running time-frequency resource etc.

In the present embodiment, said relevant information of carrying out transfer of data with said data transfer mode can also comprise that UE feeds back the mode of the channel condition information of said running time-frequency resource, and the mode of said UE feedback channel conditional information is informed to said UE.

In the present embodiment, network side can confirm how UE feeds back the mode of the running time-frequency resource upper signal channel conditional information that carries out transfer of data, and channel condition information can comprise CQI, PMI or CSI, RI (RankIndicator, order indication) etc.UE can be channel condition information between each node channel condition information of independent feedback and/or node to the feedback system of channel condition information; Perhaps feed back the channel condition information of the node set of the node that uses running time-frequency resource respectively; Perhaps feed back the equivalent channel conditional information of whole Resource Block for the local channel conditional information; The statistical expection information of equivalent channel conditional information for a plurality of channel condition information are produced with the mode of statistical disposition; Feed back respectively for all the other channel condition information, or the like.For example, when using the broadband feedback system, can be according to single cell transmission mode, to corresponding broadband CQI, PMI, the RI of each node feedback; Perhaps, to the running time-frequency resource that is used for transfer of data, according to the node set of using this running time-frequency resource, CQI, PMI or CSI, RI that feedback is corresponding; Perhaps, to whole Resource Block feedback CQI and RI, and feed back PMI or CSI to the different running time-frequency resource of transmission data.Feeding back each channel condition information can be according to the feedback system of original single sub-district; Or according to the feedback system of data aggregate processing mode transmission, a CQI, a CSI and a RI as for the node set feedback joint transmission of using running time-frequency resource the time, rather than feed back respectively to each node.

UE can directly feed back through direct feedback system, or feed back indirectly through indirect feedback system after the mode that obtains the feedback channel conditional information.Directly feedback system is that UE calculates the available channel conditional information and feeds back to network side.Indirect channel condition information between the node of feedback system when to be UE to each node independent measurement channel condition information and/or corresponding Combined Treatment mode transmit.

The wherein calculating of channel condition information; Can be according to following mode: for certain Resource Block, UE can be according to RS, like CSI RS; Acquire the channel matrix and the interference matrix of each node in the coordinate multipoint set; Analyze SINR and corresponding data speed or the throughput of using each RI and the corresponding available corresponding precoding vector of each PMI to obtain then, find the PMI and corresponding RI of corresponding maximum data rate or throughput, corresponding SINR is quantized to obtain CQI.

Use single cell channel to calculate during according to single cell measurement, calculate according to multi-cell channel when multi-plot joint is measured.

If the UE feedback is single cell channel conditional information of each sub-district; Then, coordinate multipoint Combined Treatment mode can not directly use when transmitting; Need carry out reruning of coordinate multipoint channel condition information according to the feedback of UE, like precoding vector link the becoming multinode precoding vector that the PMI of each node is corresponding, if channel condition information between node is arranged; Like phase difference between node, link again after then can adjusting the precoding vector of respective nodes with phase difference earlier.

In the present embodiment, network side can also confirm that UE carries out balanced mode to the data of carrying out transfer of data with the established data transmission means.Network side can comprise one or more antenna ports in the said antenna port set with the running time-frequency resource corresponding antenna port set information notification that is used for carrying out transfer of data with the established data transmission means to said UE.For example, network side can confirm that UE uses which RS and/or CSI information to carry out equilibrium, and spendable RS or CSI information comprise the identical DM RS port on DM RS port or the different RE, CRS port, CRS port and MI etc.Advice method can be for as comprising simultaneously among the DCI that the indication of a plurality of DM RS ports or a plurality of DM RS port and PMI indicate etc.UE receive said data are carried out balanced mode after, can carry out equilibrium to the data that receive according to the antenna port aggregate information.

In the present embodiment; Network side can send signaling to UE through semi-static and/or dynamical fashion; UE can be according to the signaling of up-to-date semi-static and/or dynamic notice; Obtain one or more of following information: data transfer mode and carry out in the information such as relevant information of transfer of data one or more with said data transfer mode: data transfer mode information, the resource information of running time-frequency resource is used the nodal information or the node set information of the node of running time-frequency resource; The mode of UE feedback channel conditional information, UE carries out balanced information such as mode to data.Perhaps; Information and data transfer mode information thereof such as relevant information that network side can directly be notified all data transfer modes and carry out transfer of data with said data transfer mode; The nodal information of the node that uses; The mode of UE feedback channel conditional information and UE carry out balanced information such as mode to data.

In embodiments of the present invention, network side is notifying data transfer mode to UE, perhaps; In the time of will sending to UE with the relevant information that said data transfer mode is carried out transfer of data; Can adopt explicit mode to notify, or adopt implicit expression mode, promptly predefined mode.For example, network side can send signaling to UE, and for example the mode with bitmap comprises data transfer mode in this signaling; Perhaps, the predefined data transmission mode, this data-transmission mode comprises data transfer mode; Then network side can be told UE with data-transmission mode; After then UE obtains data-transmission mode, just can know the data transmission method corresponding according to predetermined content with this data-transmission mode.Carry out the resource information of the running time-frequency resource of transfer of data for what comprise in the said relevant information with said data transfer mode; Use the nodal information of the node of said running time-frequency resource; UE is to carrying out balanced mode with the data of said data transfer mode transmission, and UE feeds back mode that one or more information in the information such as mode of channel condition information of said running time-frequency resource can adopt explicit or implicit expression through to UE.When the partial information in data transfer mode and the relevant information adopted the implicit expression mode to notify to UE, remaining information can adopt explicit passing through to UE.

In the present embodiment; Also can be for every kind of data transfer mode, the resource information of the running time-frequency resource that this data transfer mode of predefine is corresponding, the nodal information of the node of use running time-frequency resource; The mode of UE feedback channel conditional information; And UE carries out balanced mode etc. to data, then with the mode of index, above-mentioned information notified to UE.Perhaps,, possibly take the data transfer mode that RE carries out transfer of data, and classify, and set up index and notify UE simultaneously with indexed mode to each type with the relevant information that this data transfer mode is carried out transfer of data for a RE.

In the present embodiment, in the explicit signaling advice method, signaling primary colors such as 1bit can indicate the corresponding information of a RE, also can indicate the corresponding information of one group of RE.Like the bitmap mode, 1bit wherein can represent whether a RE can be used to transmit data, can represent also whether one group of RE (like all RE of a symbol) can transmit data.

More than all notification of information can separate configurations, as notifying UE the running time-frequency resource that various data transfer modes are used through the explicit notification mode, and through the channel condition information feedback system of implicit expression advice method notice UE to each running time-frequency resource.

Network side is through semi-static and/or dynamical fashion update notifications running time-frequency resource and data transfer mode information thereof; Use the nodal information of the node of running time-frequency resource; The mode of UE feedback channel conditional information; Or UE is when carrying out the partial information in the balanced information such as mode to data, and network side and UE can be with the relevant informations of the original preservation of lastest imformation replacement.

In the present embodiment, can perhaps notify UE to upgrade above-mentioned data transfer mode and/or various relevant information according to certain trigger condition notice above-mentioned data transfer mode of UE and/or relevant information.In the present embodiment, the trigger condition of upgrading can for:

(1) data-transmission mode changes.For example; Originally data-transmission mode is that all nodes in the coordinate multipoint set carry out the Combined Treatment mode and transmit; Now data-transmission mode becomes on the part running time-frequency resource in the coordinate multipoint set all nodes and carries out the Combined Treatment mode and transmit; And, on another part running time-frequency resource in the set of this coordinate multipoint part of nodes carry out the Combined Treatment mode and transmit.

(2) the cooperative node set changes.For example, the node number in the cooperative node set changes, thereby variation has taken place the information that has caused the node set that all kinds of resources are used.

(3) being used for the established data transmission means transmits the running time-frequency resource of data and changes.For example, in the cooperative node set, the PDCCH symbolic number of certain sub-district changes, and perhaps the ABS of certain sub-district configuration changes.

In the present embodiment, the node in the coordinate multipoint set can be according to the established data transmission means, on should the running time-frequency resource of data-transmission mode, and to UE transmission data, and transmission RS and control signaling.UE can receive data according to the resource information of the running time-frequency resource that transmits data; And according to the balanced way that network side is informed the data that receive are carried out equilibrium, and the channel condition information feedback system of informing according to network side is fed back the channel condition information of the running time-frequency resource that transmits said data.

Shown in figure 10ly the embodiment of the invention also discloses a kind of network equipment, comprising: first transmitting element 1001 is used for data transfer mode is notified to user equipment (UE).And second transmitting element 1002; Be used for and send to said UE with the relevant information that said data transfer mode is carried out transfer of data; Said relevant information comprises the resource information of carrying out the running time-frequency resource of transfer of data with said data transfer mode, and the nodal information that uses the node of said running time-frequency resource.This network equipment can also comprise transmission unit 1003, is used for transmitting data according to said data transfer mode and corresponding said running time-frequency resource to said UE.

The network equipment that the embodiment of the invention provides can be applied among the mode embodiment as shown in Figure 9.According to the device that the embodiment of the invention provides, can improve efficient to UE transmission data.

It will be appreciated by those skilled in the art that in embodiments of the present invention information, data can use any technology to represent, for example; Data (data), instruction (instructions), order (command); Information (information), signal (signal), bit (bit); Symbol (symbol) and chip (chip) can pass through voltage, electric current, electromagnetic wave, magnetic field or magnetic grain (magnetic particles), light field or light grain (optical particles), or above combination in any.

Those skilled in the art can also recognize the various illustrative components, blocks (illustrative logical block) that the embodiment of the invention is listed, and unit and step can be passed through electronic hardware, computer software, or both combinations realize.Be the clear replaceability (interchangeability) of showing hardware and software, above-mentioned various illustrative components (illustrative components), unit and step have been described their function generally.Such function is to realize depending on the designing requirement of certain applications and whole system through hardware or software.Those skilled in the art can be for every kind of certain applications, and can make ins all sorts of ways realizes described function, but this realization should not be understood that to exceed the scope of embodiment of the invention protection.

Various illustrative logical block described in the embodiment of the invention; Or the unit can pass through general processor, digital signal processor, application-specific integrated circuit (ASIC) (ASIC); Field programmable gate array (FPGA) or other programmable logic device; Discrete gate or transistor logic, discrete hardware components, or the design of above-mentioned any combination realizes or operates described function.General processor can be microprocessor, and alternatively, this general processor also can be any traditional processor, controller, microcontroller or state machine.Processor also can realize through the combination of calculation element, for example digital signal processor and microprocessor, a plurality of microprocessors, Digital Signal Processor Core of one or more microprocessors associatings, or any other similarly configuration realize.

The method described in the embodiment of the invention or the step of algorithm can directly embed hardware, the software module of processor execution or the two combination.Software module can be stored in the storage medium of other arbitrary form in RAM memory, flash memory, ROM memory, eprom memory, eeprom memory, register, hard disk, moveable magnetic disc, CD-ROM or this area.Exemplarily, storage medium can be connected with processor, so that processor can read information from storage medium, and can deposit write information to storage medium.Alternatively, storage medium can also be integrated in the processor.Processor and storage medium can be arranged among the ASIC, and ASIC can be arranged in the user terminal.Alternatively, processor and storage medium also can be arranged in the various parts in the user terminal.

In one or more exemplary designs, the described above-mentioned functions of the embodiment of the invention can realize in hardware, software, firmware or this three's combination in any.If in software, realize, these functions can be stored on the media with computer-readable, or are transmitted on the media of computer-readable with one or more instructions or code form.The computer-readable media comprises that the computer storage medium lets computer program transfer to other local communication medium from a place with being convenient to make.Storage medium can be the useable medium that any general or special computer can access.For example; Such computer readable media can include but not limited to RAM, ROM, EEPROM, CD-ROM or other optical disc storage, disk storage or other magnetic storage device, or other any can be used to carry or store with instruction or data structure and other can be read the media of the program code of form by general or special computer or general or special processor.In addition; Any connection can suitably be defined as the computer-readable media; For example, if software is through a coaxial cable, optical fiber computer, twisted-pair feeder, Digital Subscriber Line (DSL) or also being comprised in the defined computer-readable media with wireless mode transmission such as for example infrared, wireless and microwaves from a web-site, server or other remote resource.Described video disc (disk) and disk (disc) comprise Zip disk, radium-shine dish, CD, DVD, floppy disk and Blu-ray Disc, and disk is usually with the magnetic duplication data, and video disc carries out the optical reproduction data with laser usually.Above-mentioned combination also can be included in the computer-readable media.

The foregoing description of specification of the present invention can utilize or realize content of the present invention so that art technology is any; It is conspicuous that any modification based on disclosed content all should be considered to this area, and basic principle described in the invention can be applied to and not depart from invention essence of the present invention and scope in other distortion.Therefore, the disclosed content of the present invention not only is confined to described embodiment and design, can also expand to and principle of the present invention and the consistent maximum magnitude of disclosed new feature.

Claims (23)

1. the method for data aggregate transmission is characterized in that this method comprises:

First node in the coordinate multipoint set is confirmed first kind running time-frequency resource; Said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data, comprise interstitial content more than or equal to 2 in the said coordinate multipoint set;

Said first node is on said first kind running time-frequency resource, according to single node transmission mode transmission primary sources;

Said first node on second type of running time-frequency resource according to cooperative multipoint transmission mode transfer secondary sources; Said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all node transmission data in the said coordinate multipoint set, and said primary sources are identical or different with secondary sources.

2. method according to claim 1; It is characterized in that; The running time-frequency resource that said other node can not be used to transmit data comprises the running time-frequency resource of the pilot signal RS that is used to carry said other node, perhaps comprises the running time-frequency resource and the running time-frequency resource that is used to carry said other node control channel of the RS that is used to carry said other node.

3. method according to claim 2; It is characterized in that; The symbolic number on the time domain that if the symbolic number on the time domain that the control channel of said first node takies equals or take more than the control channel of said other node, said first kind running time-frequency resource comprise with said coordinate multipoint set in other node be used to that to carry the running time-frequency resource of pilot signal of said other node identical and can be used for the running time-frequency resource of the running time-frequency resource of said first node transmission data; Perhaps,

If the symbolic number on the time domain that the control channel of said first node takies is less than the symbolic number on the time domain that the control channel of said other node takies, said first kind running time-frequency resource comprise with said coordinate multipoint set in other node to be used to carry the running time-frequency resource of RS of said other node identical with the running time-frequency resource that is used to carry said other control channel and can be used for the running time-frequency resource of said first node transmission data.

4. the method for claim 1 is characterized in that, comprises service node and cooperative node in the said coordinate multipoint set;

Said first node is said service node; Perhaps,

Said first node is said service node or the cooperative node that receiving terminal is confirmed, said receiving terminal is the primary sources of the said first node transmission of reception and the communication equipment of secondary sources; Perhaps, said first node is by node under the said receiving terminal definite said service node or cooperative node.

5. the method for claim 1; It is characterized in that; To be said node consult to be provided with the receiving terminal of secondary sources with receiving the primary sources that said first node sends in advance for said single node transmission mode and cooperative multipoint transmission pattern, or said node is notified said receiving terminal after definite.

6. the method for data aggregate transmission is characterized in that this method comprises:

Receiving terminal be received on the first kind running time-frequency resource, with the primary sources of single node transmission mode transmission, and on second type of running time-frequency resource, with the secondary sources of cooperative multipoint transmission mode transfer; Said primary sources are sent by the first node in the coordinate multipoint set; Said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data; Said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all node transmission data in the said coordinate multipoint set, comprises interstitial content more than or equal to 2 in the said coordinate multipoint set; Said primary sources and secondary sources are identical or different;

Said receiving terminal carries out equilibrium to the primary sources on the said first kind running time-frequency resource; Secondary sources on said second type of running time-frequency resource are carried out equilibrium; To the demodulation of decoding of the primary sources after the equilibrium and the secondary sources after the equilibrium, obtain said primary sources and said secondary sources.

7. method as claimed in claim 6; It is characterized in that; Said receiving terminal also is used for the SINR of transmission data under the Signal to Interference plus Noise Ratio SINR of transmission data under the single node transmission mode and the cooperative multipoint transmission pattern is merged; SINR after obtaining merging obtains channel quality indicator (CQI) according to the SINR after the said merging, said CQI is reported the service node of said receiving terminal.

8. method as claimed in claim 6 is characterized in that, said receiving terminal is measured the pre-coding matrix of transmission data under the single node transmission mode and indicated feedback information PMI or CSI such as PMI or channel space information CSI, and reports the service node of said receiving terminal; And/or,

Said receiving terminal is measured the PMI or the CSI of transmission data under the cooperative multipoint transmission pattern, and reports the service node of said receiving terminal.

9. method according to claim 6 is characterized in that, said receiving terminal carries out equilibrium according to demodulation pilot frequency DMRS to said primary sources and secondary sources;

Be used for that primary sources are carried out balanced DMRS and be carried on different running time-frequency resources with the DMRS that is used for secondary sources are carried out equilibrium; Perhaps, be used for that primary sources are carried out balanced DMRS and secondary sources carried out the different layers that balanced DMRS is carried on identical running time-frequency resource with being used for.

10. a communicator is characterized in that, this device comprises:

Confirm the running time-frequency resource unit; Be used for confirming first kind running time-frequency resource; First kind running time-frequency resource is sent to the Resources allocation end; Said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data, comprise interstitial content more than or equal to 2 in the said coordinate multipoint set;

Transmission unit; Be used at said first kind running time-frequency resource; According to single node transmission mode transmission primary sources; And be used on second type of running time-frequency resource according to cooperative multipoint transmission mode transfer secondary sources, said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all nodes transmission data in the said coordinate multipoint set, said primary sources identical with secondary sources or different.

11. communicator as claimed in claim 10 is characterized in that, also comprises:

Said definite running time-frequency resource unit is further used for if the symbolic number on the time domain that the control channel of said first node takies is identical with symbolic number on the time domain that the control channel of said other node takies, confirm and said coordinate multipoint gather in the identical running time-frequency resource of running time-frequency resource of pilot signal that is used to carry said other node of other node be first kind running time-frequency resource; Perhaps,

Said definite running time-frequency resource unit is further used for if the symbolic number on the time domain that the control channel of said first node takies is less than the symbolic number on the time domain that the control channel of said other node takies, confirm said first kind running time-frequency resource comprise with said coordinate multipoint set in other node to be used to carry the running time-frequency resource of RS of said other node and running time-frequency resource that can be used for said first node transmission data identical with the running time-frequency resource that is used to carry said other control channel be first kind running time-frequency resource.

12. a communicator is characterized in that, comprising:

Receiving element, be received on the first kind running time-frequency resource, with the primary sources of single node transmission mode transmission, and on second type of running time-frequency resource, with the secondary sources of cooperative multipoint transmission mode transfer; Said primary sources are sent by the first node in the coordinate multipoint set; Said first kind running time-frequency resource comprise with the set of said coordinate multipoint in other node can not be used to that to transmit the running time-frequency resource of data identical and can be used for the running time-frequency resource of said first node transmission data; Said second type of running time-frequency resource is beyond the said first kind running time-frequency resource and running time-frequency resource that can be used for all node transmission data in the said coordinate multipoint set, comprises interstitial content more than or equal to 2 in the said coordinate multipoint set;

Balanced unit carries out equilibrium to the primary sources on the said first kind running time-frequency resource, and the secondary sources on said second type of running time-frequency resource are carried out equilibrium;

The demodulating and decoding unit is used for that said balanced unit is carried out primary sources and secondary sources after the equilibrium and carries out demodulating and decoding and handle, and obtains primary sources and secondary sources.

13. communicator as claimed in claim 12 is characterized in that, this device also comprises:

Acquiring unit is used for the SINR of transmission data under SINR that transmits data under the single node transmission mode and the cooperative multipoint transmission pattern is merged, and obtains channel quality indicator (CQI) according to the SINR after merging;

Report the unit, be used for the CQI that acquiring unit obtains is reported the service node of said communicator.

14. communicator as claimed in claim 12 is characterized in that, the said unit that reports also is used to report the PMI or the CSI that transmit data under the single node transmission mode, and/or, the PMI or the CSI of transmission data under the cooperative multipoint transmission pattern.

15. the method for a transfer of data is characterized in that, comprising:

Network side notifies data transfer mode to user equipment (UE);

Said network side will send to said UE with the relevant information that said data transfer mode is carried out transfer of data; Said relevant information comprises the resource information of carrying out the running time-frequency resource of transfer of data with said data transfer mode, and the nodal information that uses the node of said running time-frequency resource.

16. method as claimed in claim 15 is characterized in that, said data transfer mode comprises:

All nodes transmit data according to the Combined Treatment mode in the coordinate multipoint set; Perhaps,

All nodes transmit data according to the Combined Treatment mode in the coordinate multipoint set, and part of nodes transmits data according to the Combined Treatment mode in the coordinate multipoint set; Perhaps,

All nodes transmit data according to the Combined Treatment mode in the coordinate multipoint set, and node transmits data according to the single node transmission means in the coordinate multipoint set; Perhaps,

All nodes transmit data according to the Combined Treatment mode in the coordinate multipoint set, and part of nodes transmits data according to the Combined Treatment mode in the coordinate multipoint set, and node transmits data according to the single node transmission means in the coordinate multipoint set; Perhaps,

Part of nodes transmits data according to the Combined Treatment mode in the coordinate multipoint set; Perhaps,

Part of nodes transmits data according to the Combined Treatment mode in the coordinate multipoint set, and node transmits data according to the single node transmission means in the coordinate multipoint set;

Said part of nodes comprises two nodes at least.

17. method as claimed in claim 15 is characterized in that, said relevant information also comprises:

Said UE is to carrying out balanced mode with the data of said data transfer mode transmission.

18. method as claimed in claim 15 is characterized in that, said relevant information also comprises:

Said UE feeds back the mode of the channel condition information of said running time-frequency resource.

19. like the arbitrary described method of claim 15-18, it is characterized in that, said data transfer mode notified to UE comprise: said data transfer mode is notified to said UE through explicit or implicit expression mode; Perhaps,

Said relevant information notified to said UE comprise: said relevant information is sent to said UE through explicit or implicit expression mode.

20. like the arbitrary described method of claim 15-18, it is characterized in that, saidly said relevant information is sent to said UE comprise:

Complete relevant information is sent to said UE; Perhaps,

Send to said UE with carrying out relevant information semi-static and/or that dynamically update in the said relevant information.

21. the method for claim 1 is characterized in that, said method also comprises: when following arbitrary condition satisfies, said data transfer mode and/or relevant information are sent to said UE:

Said data transfer mode changes; Perhaps,

The said node that carries out transfer of data with said data transfer mode changes; Perhaps,

Said running time-frequency resource changes.

22. a network side apparatus is characterized in that, comprising:

First transmitting element is used for data transfer mode is notified to user equipment (UE); And

Second transmitting element; Be used for and send to said UE with the relevant information that said data transfer mode is carried out transfer of data; Said relevant information comprises the resource information of carrying out the running time-frequency resource of transfer of data with said data transfer mode, and the nodal information that uses the node of said running time-frequency resource.

23. device as claimed in claim 22 is characterized in that, said device also comprises: transmission unit is used for transmitting data according to said data transfer mode and corresponding said running time-frequency resource to said UE.

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