CN102064868A - Method, system and device for realizing multi-cell cooperative data transmission - Google Patents
Method, system and device for realizing multi-cell cooperative data transmission Download PDFInfo
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- CN102064868A CN102064868A CN2009102381276A CN200910238127A CN102064868A CN 102064868 A CN102064868 A CN 102064868A CN 2009102381276 A CN2009102381276 A CN 2009102381276A CN 200910238127 A CN200910238127 A CN 200910238127A CN 102064868 A CN102064868 A CN 102064868A
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Abstract
The invention discloses a method, a system and a device for realizing multi-cell cooperative data transmission for solving the problem of data and pilot frequency transmission when centre frequencies, bandwidths and the like of multiple cells are different. The method comprises the following steps that: cooperative transmission cells generate pilot frequency sequences on the basis of obtained pilot frequency sequence generation rules when the multi-cell cooperative transmission is adopted, and then, data and the pilot frequency sequences to be transmitted to a terminal are transmitted after be subjected to mapping according to obtained resource mapping rules; a serving cell transmits the pilot frequency sequence generation rules and the resource mapping rules to the terminal, and the pilot frequency sequence generation rules and the resource mapping rules are supplied for the terminal to demodulate data.
Description
Technical field
The present invention relates to communication technical field, be meant a kind of method, system and device of realizing the multi-cell synergetic transmission data especially.
Background technology
In 3G (Third Generation) Moblie (3GPP) system advanced person's Long Term Evolution (LTE-Advanced) system, will adopt multi-cell synergetic transmission (Co-ordinated Multi-Point Transmission, CoMP) technology improves the service quality of Cell Edge User, wherein LTE is the abbreviation of Long Term Evolution, be the evolution system of 3-G (Generation Three mobile communication system), the LTE-Advanced system is the upgrading of LTE system.
The multi-point cooperative transmission technology improves user's received signal quality by the combined dispatching or the collaborative transmission of a plurality of sub-districts of separating on the geographical position, reduces the interference of minizone, thereby effectively improves power system capacity and edge customer spectrum efficiency.When user data adopts multi-point joint transmission, because the configuration information difference of sub-district, multi-cell data transmission and pilot tone mapping variation in the time of can causing multi-cell synergetic transmission, such as: the bandwidth difference of neighbor cell, cause the interior pilot frequency sequence difference of inserting of same Resource Block, or the centre frequency of neighbor cell is inconsistent, cause the data resource of joint transmission to align, the pilot frequency sequence difference, thus can't demodulating data, can't support multi-point joint to send.
Summary of the invention
The invention provides a kind of method, system and device of realizing the multi-cell synergetic transmission data, when realizing that each sub-district mapping ruler is inconsistent and the data and the pilot tone that cause send inconsistent problem.
A kind of method that realizes the multi-cell synergetic transmission data that the embodiment of the invention provides comprises:
When adopting multi-cell synergetic transmission, collaborative transmission sub-district produces pilot frequency sequence according to the pilot frequency sequence generation rule rule that obtains, then according to obtain the resource mapping ruler, will be transferred to the data of terminal and pilot frequency sequence and shine upon the back and send, and,
Serving cell sends to this terminal with described pilot frequency sequence generation rule and resource mapping ruler information.
A kind of system that realizes the multi-cell synergetic transmission data that the embodiment of the invention provides, comprise: above sub-district control unit and resource mapping ruler determining unit, the corresponding collaborative transmission sub-district of each sub-district control unit, wherein, a sub-district control unit is the Serving cell control unit, remaining sub-district control unit is the non-service cell control unit
Pilot frequency sequence generation rule and resource mapping ruler determining unit are used for determining collaborative pilot frequency sequence generation rule and the resource mapping ruler that transmits the sub-district;
The Serving cell control unit, be used for according to the pilot frequency sequence generation rule and the resource mapping ruler that obtain, the data that will be transferred to this terminal in the collaborative transmission sub-district of correspondence shine upon and insert pilot frequency sequence after send, and described pilot frequency sequence generation rule and resource mapping ruler information sent to this terminal, described pilot frequency sequence generation rule and resource mapping ruler information are used to offer this terminal and carry out data demodulates;
The non-service cell control unit is used for according to the pilot frequency sequence generation rule and the resource mapping ruler that obtain, the data that will be transferred to this terminal in the collaborative transmission sub-district of correspondence shine upon and insert pilot frequency sequence after send.
A kind of cell control equipment that the embodiment of the invention provides comprises:
Map unit is used for according to the pilot frequency sequence generation rule and the resource mapping ruler that obtain, and the data that will be transferred to this terminal in the collaborative transmission sub-district of correspondence are shone upon and inserted pilot frequency sequence;
First transmitting element is used for mapping and the data after inserting pilot frequency sequence send.
The method of a kind of multi-cell synergetic transmission data that the embodiment of the invention provides comprises:
The pilot frequency sequence generation rule that adopts the collaborative terminal utilization of transmitting the sub-district to receive is selected pilot tone, and utilizes the pilot demodulated corresponding downstream data of selecting.
A kind of terminal that the embodiment of the invention provides comprises:
Receiving element is used to receive pilot frequency sequence generation rule and the resource mapping ruler information that Serving cell sends;
Demodulating unit is used to utilize described pilot frequency sequence generation rule Information Selection pilot tone, and utilizes pilot tone and the corresponding data of selecting of resource mapping ruler demodulation.
In embodiments of the present invention, when user data adopted multi-point joint transmission, related cell was according to unified resource mapping ruler mapping (enum) data and pilot tone, and by signaling user relevant configuration information.Owing to adopt unified mapping ruler, mapping is consistent to each cooperation district data map with pilot tone in the time of therefore can guaranteeing many cell transmission.
Description of drawings
Fig. 1 is the schematic flow sheet of method of the realization transfer of data of the embodiment of the invention;
Fig. 2 is a centre frequency, the schematic diagram of the equal consistent scene of PRB mapping and system bandwidth;
Fig. 3 is for for centre frequency, and the PRB mapping is identical, but the schematic diagram of the different scene of system bandwidth;
Fig. 4 is a centre frequency, the schematic diagram of the scene of PRB mapping different with system bandwidth (5M and 10M);
Fig. 5 is a centre frequency, the schematic diagram of the scene that the PRB mapping is different with system bandwidth;
Fig. 6 is a centre frequency and but the schematic diagram of scene that system bandwidth identical different with the PRB mapping;
Fig. 7 realizes the structural representation of the system of multi-cell synergetic transmission data for the embodiment of the invention;
Fig. 8 is the structural representation of a kind of cell control equipment of the embodiment of the invention;
Fig. 9 is the structural representation of the another kind of cell control equipment of the embodiment of the invention;
Figure 10 is the structural representation of the terminal of the embodiment of the invention.
Embodiment
Simplify the terminal demodulating process when the multi-cell synergetic transmission in order to solve, collaborative transmission sub-district produces pilot frequency sequence according to the pilot frequency sequence generation rule that obtains in the embodiment of the invention, then according to the resource mapping ruler that obtains, the data and the pilot frequency sequence that will be transferred to terminal shine upon the back transmission, and Serving cell sends to this terminal with described pilot frequency sequence generation rule and resource mapping ruler information.
Need to prove that for the collaborative transmission sub-district of a terminal, the pilot frequency sequence generation rule of each sub-district can be identical, unified or similar.Or pilot frequency sequence generation rule that adopt each collaborative transmission sub-district has certain rules, and end side can obtain correct pilot tone according to the pilot frequency sequence generation rule and the certain rules that obtain.
Equally, for the collaborative transmission sub-district of a terminal, the resource mapping ruler of each sub-district can be identical, unified or similar.Or resource mapping ruler that adopt each collaborative transmission sub-district has certain rules, and end side can obtain the correct data of carrying out according to the resource mapping ruler that obtains and this rule.
In embodiments of the present invention, adopt unified resource mapping ruler to be meant at using identical resource mapping ruler in the collaborative transmission sub-district of a terminal.Adopt unified pilot frequency sequence generation rule to be meant at using identical pilot frequency sequence generation rule in the collaborative transmission sub-district of a terminal.
Here, Serving cell can send to terminal with described pilot frequency sequence generation rule and resource mapping ruler when accessing terminal to network, also can in working in coordination with transmission course pilot frequency sequence generation rule and resource mapping ruler be sent to terminal.Service is gone for a short time also can be when accessing terminal to network, described pilot frequency sequence generation rule and resource mapping ruler are sent to terminal, but when pilot frequency sequence generation rule and resource mapping ruler change, can send pilot frequency sequence generation rule and resource mapping ruler at any time to terminal, to upgrade the pilot frequency sequence generation rule and the resource mapping ruler of end side.
Referring to shown in Figure 1, the method for the realization transfer of data of the embodiment of the invention may further comprise the steps:
Step 101: when adopting multi-cell synergetic transmission, collaborative transmission sub-district produces pilot frequency sequence according to the unified pilot frequency sequence generation rule that obtains, according to unified resource mapping ruler, the data and the pilot frequency sequence that will be transferred to terminal shine upon the back transmission then.
Here, collaborative transmission sub-district can comprise center cell and non-central sub-district, and collaborative transmission determines that the sub-district of pilot frequency sequence generation rule and resource mapping ruler is a center cell in the sub-district, and other sub-districts in the collaborative transmission sub-district are non-central sub-district.Center cell can be the Serving cell of terminal, also can be non-service cell.
Collaborative transmission sub-district can obtain unified pilot frequency sequence generation rule and resource mapping ruler in the following manner: center cell is determined unified pilot frequency sequence generation rule and resource mapping ruler, and sends to non-central sub-district by unified pilot frequency sequence generation rule and the resource mapping ruler that X2 interface will obtain.
Center cell determines that unified pilot frequency sequence generation rule and resource mapping ruler can realize like this: non-central sub-district is passed to center cell with this district pilots sequence generation rule and resource mapping ruler by X2 interface, and center cell determines to obtain unified pilot frequency sequence generation rule and resource mapping ruler according to pilot frequency sequence generation rule and resource mapping rulers of all collaborative transmission sub-districts.
Center cell determines that unified pilot frequency sequence generation rule and resource mapping ruler can realize like this: center cell is defined as unified pilot frequency sequence generation rule and resource mapping ruler with the pilot frequency sequence generation rule and the resource mapping ruler of this sub-district.
When described pilot frequency sequence generation rule and resource mapping ruler comprise multi-cell synergetic transmission set identification information, and have corresponding relation between multi-cell synergetic transmission set identification and the cell ID, then cooperation district obtains the multi-cell synergetic transmission set identification according to this cell ID.The centre frequency that comprises multi-cell synergetic transmission when pilot frequency sequence generation rule and resource mapping ruler, and when the centre frequency of a plurality of sub-districts of collaborative transmission was consistent, then collaborative transmission sub-district can be with self centre frequency centre frequency as multi-cell synergetic transmission.The band width configuration information that comprises multi-cell synergetic transmission when pilot frequency sequence generation rule and resource mapping ruler, and when the band width configuration of a plurality of sub-districts of collaborative transmission is consistent, the sub-district of then collaborative transmission is with self bandwidth bandwidth as multi-cell synergetic transmission, and can need not the X2 signaling and notify this moment.
Described collaborative transmission sub-district comprises center cell and non-central sub-district, collaborative transmission sub-district can obtain unified pilot frequency sequence generation rule and resource mapping ruler in the following manner: pilot frequency sequence generation rule that the center cell determining section is unified and resource mapping ruler, and configuration information acquisition remainder pilot frequency sequence generation rule and resource mapping ruler by preserving in advance; Center cell sends to non-central sub-district by X2 interface with described part pilot frequency sequence generation rule and resource mapping ruler, and non-central sub-district obtains remainder pilot frequency sequence generation rule and resource mapping ruler by the configuration information of preserving in advance.
Described unified pilot frequency sequence generation rule and resource mapping ruler is: the pilot frequency sequence generation rule and the resource mapping ruler of any one collaborative transmission sub-district, as the pilot frequency sequence generation rule and the resource mapping ruler of Serving cell, with collaborative pilot frequency sequence generation rule and the resource mapping ruler that transmits sub-district relevant pilot frequency sequence generation rule and resource mapping ruler or be independent of collaborative arbitrarily transmission sub-district.
Described pilot frequency sequence generation rule and resource mapping ruler comprise: unified cell identity information, the multi-cell synergetic transmission of multi-cell synergetic transmission unified center frequency information, multi-cell synergetic transmission and unified in the unified resource schedule information of band width configuration information and multi-cell synergetic transmission one or more.
The unified cell identity information of described multi-cell synergetic transmission can be the cell identity information that is independent of collaborative arbitrarily transmission sub-district self identification information, with the relevant cell identity information of collaborative transmission sub-district self identification information, or certain collaborative transmission sub-district self identification information, as the identification information of Serving cell.
Step 102: Serving cell sends to this terminal with described pilot frequency sequence generation rule and resource mapping ruler information.
Serving cell can send to this terminal with described pilot frequency sequence generation rule and resource mapping ruler information by the mode of demonstration, implicit expression or part display part implicit expression.The mode of dominance comprises high-level signaling (RRC) and PDCCH (DCI) dual mode, and promptly Serving cell can send to this terminal by DCI or RRC signaling with described pilot frequency sequence generation rule and resource mapping ruler information, but is not limited to this dual mode.The mode that relevant signaling can adopt combined coding or encode respectively.So-called dominance is exactly that charge system information has independent territory to indicate this information, and it is relevant with other information that implicit expression refers to this information, is embodied in the indication information in other territories.
Send the method for data when step 101 can be used as a multi-cell synergetic transmission, step 102 is pilot frequency sequence generation rule and the resource mapping ruler information that sends in order to make terminal correctly receive the data of multi-cell synergetic transmission.Step 101 and step 102 are the process of transmitting of network side when multi-cell system transmits.Also can also realize data transmission method together with the receiving course of following steps 103.
Step 103: pilot frequency sequence generation rule that this terminal utilization is received and resource mapping ruler Information Selection pilot tone, and utilize the pilot demodulated corresponding downstream data of selecting.This step can be used as the process of independent reception data.
For the embodiment that optimizes technical scheme of the present invention is described again below.
The prioritization scheme of following scene out of the ordinary, the scene according to optimizing can reduce the expense of part signaling, or reduce the expense of signaling by other modes.
Collaborative transmission sub-district comprises center cell and non-central sub-district, when then collaborative transmission sub-district is center cell, center cell can obtain pilot frequency sequence generation rule and resource mapping ruler according to current resource situation configuration, certainly be not limited thereto, also can receive pilot frequency sequence generation rule and resource mapping ruler information that non-central sub-district sends and unified pilot frequency sequence generation rule and the resource mapping ruler of determining multi-cell synergetic transmission according to these information by X2 interface.And, can also be according to priority or class information, preferentially pilot frequency sequence generation rule and the resource mapping ruler information with reference to the non-central sub-district of high priority is configured.
Collaborative transmission sub-district comprises center cell and non-central sub-district, when collaborative transmission sub-district is non-central sub-district, after then having obtained pilot frequency sequence generation rule and resource mapping ruler based on center cell, non-central sub-district can obtain pilot frequency sequence generation rule and resource mapping ruler according to following mode: whole pilot frequency sequence generation rules and resource mapping ruler that non-central sub-district sends by X2 interface receiving center sub-district.Such as: if described pilot frequency sequence generation rule and resource mapping ruler comprise: four kinds of the resource scheduling information of multi-cell synergetic transmission set identification information, multi-cell synergetic transmission center frequency information, multi-cell synergetic transmission band width configuration information and multi-cell synergetic transmission can all send to these information each collaborative transmission sub-district of this terminal by X2 interface.
When collaborative transmission sub-district is non-central sub-district, can obtain pilot frequency sequence generation rule and resource mapping ruler according to following mode: a part of pilot frequency sequence generation rule and resource mapping ruler that non-central sub-district sends by X2 interface receiving center sub-district, and configuration information acquisition remainder pilot frequency sequence generation rule and resource mapping ruler by preserving in advance.Such as: center cell only sends to non-central sub-district with the resource scheduling information of multi-cell synergetic transmission, multi-cell synergetic transmission set identification, information mapping data and pilot tones such as the centre frequency of multi-cell synergetic transmission, multi-cell synergetic transmission bandwidth can be determined according to agreement agreement in advance in non-central sub-district.
Pilot frequency sequence generation rule and resource mapping ruler need be shared in all COMP sub-districts, usually by X2 interface notice related cell.Related cell is based on unified centre frequency, bandwidth and resource scheduling information mapping (enum) data; Generate pilot frequency sequence (scrambler and orthogonal code) and insert on the corresponding running time-frequency resource based on unified ID, unified bandwidth, unified resource scheduling information.
Referring to shown in 2, embodiment 1 be centre frequency with all consistent scene of system bandwidth under the transmission course of data, wherein dash area is represented the COMP resource, all the other represent non-COMP resource:
(1) when the The data multi-point joint transmission of terminal, the base station of related cell is according to unified centre frequency, bandwidth and unified resource schedule information mapping (enum) data, and according to unified ID, unified bandwidth is inserted identical pilot configuration (comprising pattern and sequence) with the unified resource schedule information.
This scene related cell bandwidth is identical with the centre frequency configuration, need not extra signaling and unifies bandwidth and centre frequency.
(2) base station of Serving cell sends to UE with relevant informations such as resource mapping and pilot frequency sequences.
(3) the relevant signaling of terminal basis, as comp_id, centre frequency, the bandwidth of cell configuration, resource scheduling information is selected the corresponding data of proper pilot demodulation.Wherein, the parsing of resource scheduling information and non-comp resource consistence, i.e. the definition of Resource Block all is that centre frequency and the bandwidth with Serving cell is as the criterion.
Referring to shown in Figure 3, embodiment 2 is that centre frequency is identical, but the data transmission procedure under the different scene of system bandwidth:
(1) when user data adopts multi-point joint transmission, the base station of related cell is according to unified centre frequency, bandwidth and unified resource schedule information mapping (enum) data, and according to unified id, unified bandwidth is inserted identical pilot configuration (comprising pattern and sequence) with the unified resource schedule information.
This scene related cell band width configuration difference needs extra signaling to unify bandwidth, is as the criterion with Serving cell usually, and by the relevant base station of X2 interface notice.
(2) base station side of Serving cell sends to UE with relevant informations such as resource mapping and pilot frequency sequences.
(3) the relevant signaling of terminal basis, as comp_id, centre frequency, the bandwidth of cell configuration, resource scheduling information is selected the corresponding data of proper pilot demodulation.When band width configuration is punctual with the Serving cell, the parsing of resource scheduling information and non-comp resource consistence, i.e. the definition of Resource Block all is that centre frequency and the bandwidth with Serving cell is as the criterion.
Shown in Fig. 4～6, embodiment 3 does not have the data transmission procedure of three scenes of alignment for Resource Block:
Wherein Fig. 4 is the identical but scene of system bandwidth difference (5M and 10M) of centre frequency; Fig. 5 is the centre frequency scene different with system bandwidth; Fig. 6 is centre frequency difference but the identical scene of system bandwidth.
(1) when user data adopts multi-point joint transmission, the base station of related cell is according to unified centre frequency, bandwidth and unified resource schedule information mapping (enum) data, and according to unified id, unified bandwidth is inserted identical pilot configuration (comprising pattern and sequence) with the unified resource schedule information.
This scenario resources piece is alignment not, and related cell need be unified centre frequency and bandwidth, after the alignment of assurance Resource Block, according to unified resource schedule information mapping (enum) data.Centre frequency, unified bandwidth is notified relevant base station by X2 usually with resource scheduling information.
(2) base station side of Serving cell sends to UE with relevant informations such as resource mapping and pilot frequency sequences.
(3) the relevant signaling of terminal basis, as comp_id, centre frequency, the bandwidth of cell configuration, resource scheduling information is selected the corresponding data of proper pilot demodulation.
When relevant configuration is punctual with the Serving cell, the parsing of resource scheduling information and non-comp resource consistence, i.e. the definition of Resource Block all is that centre frequency and the bandwidth with Serving cell is as the criterion.
Referring to shown in Figure 7, the embodiment of the invention realizes that the system of multi-cell synergetic transmission data comprises:
Above sub-district control unit and pilot frequency sequence generation rule and resource mapping ruler determining unit, the corresponding collaborative transmission sub-district of each sub-district control unit, wherein, a sub-district control unit is the Serving cell control unit, remaining sub-district control unit is the non-service cell control unit
Pilot frequency sequence generation rule and resource mapping ruler determining unit 71 are used for determining collaborative unified pilot frequency sequence generation rule and the resource mapping ruler that transmits the sub-district;
Serving cell control unit 72, be used for according to the unified pilot frequency sequence generation rule and the resource mapping ruler that obtain, the data that will be transferred to this terminal in the collaborative transmission sub-district of correspondence shine upon and insert pilot frequency sequence after send, and described pilot frequency sequence generation rule and resource mapping ruler information sent to this terminal, described pilot frequency sequence generation rule and resource mapping ruler information are used to offer this terminal and carry out data demodulates;
Non-service cell control unit 73 is used for according to the unified pilot frequency sequence generation rule and the resource mapping ruler that obtain, the data that will be transferred to this terminal in the collaborative transmission sub-district of correspondence shine upon and insert pilot frequency sequence after send.
Described pilot frequency sequence generation rule and resource mapping ruler determining unit are included in the sub-district control unit as logic entity, or as independently physical entity existence,
The sub-district control unit that comprises described pilot frequency sequence generation rule and resource mapping ruler determining unit is the Serving cell control unit, or is the non-service cell control unit.
When described pilot frequency sequence generation rule and resource mapping ruler determining unit are included in the sub-district control unit as logic entity,
Described pilot frequency sequence generation rule and resource mapping ruler determining unit, the unified pilot frequency sequence generation rule and the resource mapping ruler that also are further used for determining send other sub-district control units by X2 interface.
Described pilot frequency sequence generation rule and resource mapping ruler determining unit, be used for receiving other district pilots sequence generation rules and resource mapping ruler information, and determine to obtain unified pilot frequency sequence generation rule and resource mapping ruler according to the pilot frequency sequence generation rule and the resource mapping ruler of all collaborative transmission sub-districts by X2 interface.
Described pilot frequency sequence generation rule and resource mapping ruler determining unit are used for the pilot frequency sequence generation rule of respective cell and resource mapping ruler as unified pilot frequency sequence generation rule and resource mapping ruler.
When described pilot frequency sequence generation rule and resource mapping ruler determining unit are included in the sub-district control unit as logic entity,
Described pilot frequency sequence generation rule and resource mapping ruler determining unit are used for unified pilot frequency sequence generation rule of determining section and resource mapping ruler, obtain remainder pilot frequency sequence generation rule and resource mapping ruler by the configuration information of preserving in advance; By X2 interface described part pilot frequency sequence generation rule and resource mapping ruler are sent to other sub-district control units;
The sub-district control unit that does not comprise described pilot frequency sequence generation rule and resource mapping ruler determining unit, be used for receiving described part pilot frequency sequence generation rule and resource mapping ruler, and obtain remainder pilot frequency sequence generation rule and resource mapping ruler by the configuration information of preserving in advance by X2 interface.
Described unified pilot frequency sequence generation rule and resource mapping ruler is: the pilot frequency sequence generation rule and the resource mapping ruler of any one collaborative transmission sub-district, or be independent of collaborative arbitrarily pilot frequency sequence generation rule and the resource mapping ruler that transmits the sub-district.
Described pilot frequency sequence generation rule and resource mapping ruler comprise: one or more in the resource scheduling information of multi-cell synergetic transmission set identification information, multi-cell synergetic transmission center frequency information, multi-cell synergetic transmission band width configuration information and multi-cell synergetic transmission.
Described Serving cell control unit is used for by the mode of demonstration or implicit expression or part display part implicit expression described pilot frequency sequence generation rule and resource mapping ruler information being sent to this terminal.
Described Serving cell control unit sends to this terminal with described pilot frequency sequence generation rule and resource mapping ruler information by DCI or RRC signaling.
Referring to shown in Figure 8, corresponding with the Serving cell control unit, a kind of cell control equipment of the embodiment of the invention comprises:
Map unit 81 is used for according to the unified pilot frequency sequence generation rule and the resource mapping ruler that obtain, and the data that will be transferred to this terminal in the collaborative transmission sub-district of correspondence are shone upon and inserted pilot frequency sequence;
First transmitting element 82 is used for mapping and the data after inserting pilot frequency sequence send;
Can further include: second transmitting element 83, be used for described pilot frequency sequence generation rule and resource mapping ruler information are sent to this terminal, described pilot frequency sequence generation rule and resource mapping ruler information are used to offer this terminal and carry out data demodulates.Such as: described pilot frequency sequence generation rule and resource mapping ruler information are sent to this terminal by DCI or RRC signaling.
Optionally, can further include: pilot frequency sequence generation rule and resource mapping ruler determining unit, be used for determining the unified pilot frequency sequence generation rule and the resource mapping ruler of collaborative transmission sub-district, unified pilot frequency sequence generation rule and the resource mapping ruler of determining sent other sub-district control units by X2 interface.
Optionally, can further include: pilot frequency sequence generation rule and resource mapping ruler determining unit, be used for receiving other district pilots sequence generation rules and resource mapping ruler information, and determine to obtain unified pilot frequency sequence generation rule and resource mapping ruler according to the pilot frequency sequence generation rule and the resource mapping ruler of all collaborative transmission sub-districts by X2 interface.
Optionally, described map unit is used to receive unified pilot frequency sequence generation rule and the resource mapping ruler of other cell control equipments by the collaborative transmission sub-district of X2 interface transmission.
Described map unit, can be used to receive other cell control equipments and unify pilot frequency sequence generation rule and resource mapping ruler, and obtain remainder pilot frequency sequence generation rule and resource mapping ruler by the configuration information of preserving in advance by the part of the collaborative transmission sub-district of X2 interface transmission.
Described pilot frequency sequence generation rule and resource mapping ruler determining unit can be used for the pilot frequency sequence generation rule of respective cell and resource mapping ruler as unified pilot frequency sequence generation rule and resource mapping ruler.
Described pilot frequency sequence generation rule and resource mapping ruler determining unit, can be used for receiving other district pilots sequence generation rules and resource mapping ruler information, and determine to obtain unified pilot frequency sequence generation rule and resource mapping ruler according to the pilot frequency sequence generation rule and the resource mapping ruler of all collaborative transmission sub-districts by X2 interface.
Referring to shown in Figure 9, corresponding with the non-service cell control unit, a kind of cell control equipment that the embodiment of the invention provides comprises:
Map unit 91 is used for according to the unified pilot frequency sequence generation rule and the resource mapping ruler that obtain, and the data that will be transferred to this terminal in the collaborative transmission sub-district of correspondence are shone upon and inserted pilot frequency sequence;
First transmitting element 92 is used for mapping and the data after inserting pilot frequency sequence send.
Map unit 91, can receive unified pilot frequency sequence generation rule and resource mapping ruler from the Serving cell control unit, also can be to receive only a part of pilot frequency sequence generation rule and resource mapping ruler, again according to the pilot frequency sequence generation rule and the resource mapping ruler of the information acquisition remainder of self preserving.
Can further include: pilot frequency sequence generation rule and resource mapping ruler determining unit, be used for determining the unified pilot frequency sequence generation rule and the resource mapping ruler of collaborative transmission sub-district, unified pilot frequency sequence generation rule and the resource mapping ruler of determining sent other sub-district control units by X2 interface.
As one of the foregoing description substitute mode, pilot frequency sequence generation rule and resource mapping ruler determining unit, also can be used for receiving other district pilots sequence generation rules and resource mapping ruler information, and determine to obtain unified pilot frequency sequence generation rule and resource mapping ruler according to the pilot frequency sequence generation rule and the resource mapping ruler of all collaborative transmission sub-districts by X2 interface.
Described map unit can be used to receive unified pilot frequency sequence generation rule and the resource mapping ruler of other cell control equipments by the collaborative transmission sub-district of X2 interface transmission.
Described map unit, can be used to receive other cell control equipments and unify pilot frequency sequence generation rule and resource mapping ruler, and obtain remainder pilot frequency sequence generation rule and resource mapping ruler by the configuration information of preserving in advance by the part of the collaborative transmission sub-district of X2 interface transmission.
Described pilot frequency sequence generation rule and resource mapping ruler determining unit can be used for the pilot frequency sequence generation rule of respective cell and resource mapping ruler as unified pilot frequency sequence generation rule and resource mapping ruler.
Described pilot frequency sequence generation rule and resource mapping ruler determining unit, can be used for receiving other district pilots sequence generation rules and resource mapping ruler information, and determine to obtain unified pilot frequency sequence generation rule and resource mapping ruler according to the pilot frequency sequence generation rule and the resource mapping ruler of all collaborative transmission sub-districts by X2 interface.
Optionally, can further include: pilot frequency sequence generation rule and resource mapping ruler determining unit, be used for determining the unified pilot frequency sequence generation rule and the resource mapping ruler of collaborative transmission sub-district, unified pilot frequency sequence generation rule and the resource mapping ruler of determining sent other sub-district control units by X2 interface.
Optionally, can further include: pilot frequency sequence generation rule and resource mapping ruler determining unit, be used for receiving other district pilots sequence generation rules and resource mapping ruler information, and determine to obtain unified pilot frequency sequence generation rule and resource mapping ruler according to the pilot frequency sequence generation rule and the resource mapping ruler of all collaborative transmission sub-districts by X2 interface.
Referring to shown in Figure 10, a kind of terminal that the embodiment of the invention provides comprises:
Receiving element 11 is used to receive pilot frequency sequence generation rule and the resource mapping ruler information that Serving cell sends;
Demodulating unit 12 is used to utilize described pilot frequency sequence generation rule and resource mapping ruler Information Selection pilot tone, and utilizes the corresponding data of selecting of pilot demodulated.
Described pilot frequency sequence generation rule and resource mapping ruler comprise: one or more in the resource scheduling information of multi-cell synergetic transmission set identification information, multi-cell synergetic transmission center frequency information, multi-cell synergetic transmission band width configuration information and multi-cell synergetic transmission.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (38)
1. a method that realizes the multi-cell synergetic transmission data is characterized in that, this method may further comprise the steps:
The collaborative sub-district of transmitting produces pilot frequency sequence according to the pilot frequency sequence generation rule that obtains, and then according to the resource mapping ruler that obtains, the data and the pilot frequency sequence that will be transferred to terminal shine upon the back transmission, and,
Serving cell sends to this terminal with described pilot frequency sequence generation rule and resource mapping ruler information.
2. method according to claim 1 is characterized in that, described collaborative transmission sub-district comprises center cell and non-central sub-district, and collaborative transmission sub-district is to obtain the resource mapping ruler in the following manner:
Pilot frequency sequence generation rule and resource mapping ruler that center cell is determined, and pilot frequency sequence generation rule and the resource mapping ruler that obtains sent to non-central sub-district by X2 interface.
3. method according to claim 2 is characterized in that, pilot frequency sequence generation rule and resource mapping ruler that center cell is determined comprise:
Non-central sub-district is passed to center cell with this district pilots sequence generation rule and resource mapping ruler by X2 interface, and center cell is determined the pilot frequency sequence generation rule and the resource mapping ruler that obtain according to the pilot frequency sequence generation rule of all collaborative transmission sub-districts and resource mapping ruler.
4. method according to claim 2 is characterized in that, pilot frequency sequence generation rule and resource mapping ruler that center cell is determined comprise:
Pilot frequency sequence generation rule and resource mapping ruler that center cell is defined as the pilot frequency sequence generation rule and the resource mapping ruler of this sub-district.
5. method according to claim 1 is characterized in that, described collaborative transmission sub-district comprises center cell and non-central sub-district, and collaborative transmission sub-district is pilot frequency sequence generation rule and the resource mapping ruler that obtains in the following manner:
Center cell determining section pilot frequency sequence generation rule and resource mapping ruler, and configuration information acquisition remainder pilot frequency sequence generation rule and resource mapping ruler by preserving in advance;
Center cell sends to non-central sub-district by X2 interface with described part pilot frequency sequence generation rule and resource mapping ruler, and non-central sub-district obtains remainder pilot frequency sequence generation rule and resource mapping ruler by the configuration information of preserving in advance.
6. according to any described method in the claim 1～5, it is characterized in that described pilot frequency sequence generation rule and resource mapping ruler are:
The pilot frequency sequence generation rule of any one collaborative transmission sub-district and resource mapping ruler, pilot frequency sequence generation rule and the resource mapping ruler relevant or be independent of and work in coordination with pilot frequency sequence generation rule and the resource mapping ruler that transmits the sub-district arbitrarily with collaborative transmission sub-district.
7. according to any described method in the claim 1～5, it is characterized in that described pilot frequency sequence generation rule and resource mapping ruler comprise: one or more in the resource scheduling information of multi-cell synergetic transmission cell identity information, multi-cell synergetic transmission center frequency information, multi-cell synergetic transmission band width configuration information and multi-cell synergetic transmission.
8. according to the method for claim 7, it is characterized in that, the cell identity information of described multi-cell synergetic transmission is: be independent of the cell identity information of collaborative arbitrarily transmission sub-district self identification information, cell identity information or certain the collaborative transmission sub-district self identification information relevant with collaborative transmission sub-district self identification information, as the identification information of Serving cell.
9. according to any described method in the claim 2～5, it is characterized in that described center cell is: Serving cell, or non-service cell.
10. method according to claim 1 is characterized in that, Serving cell sends to this terminal with described pilot frequency sequence generation rule and resource mapping ruler information, comprising:
Serving cell sends to this terminal by the mode of demonstration or implicit expression or part display part implicit expression with described pilot frequency sequence generation rule and resource mapping ruler information.
11. method according to claim 10 is characterized in that, Serving cell sends to this terminal with described pilot frequency sequence generation rule and resource mapping ruler information by DCI or RRC signaling.
12. method according to claim 1 is characterized in that, described pilot frequency sequence generation rule and resource mapping ruler are used to offer this terminal and carry out data demodulates.
13. system that realizes the multi-cell synergetic transmission data, it is characterized in that, comprise: above sub-district control unit and pilot frequency sequence generation rule and resource mapping ruler determining unit, the corresponding collaborative transmission sub-district of each sub-district control unit, wherein, a sub-district control unit is the Serving cell control unit, and remaining sub-district control unit is the non-service cell control unit
Pilot frequency sequence generation rule and resource mapping ruler determining unit are used for determining collaborative pilot frequency sequence generation rule and the resource mapping ruler that transmits the sub-district;
The Serving cell control unit, be used for according to the pilot frequency sequence generation rule and the resource mapping ruler that obtain, the data that will be transferred to this terminal in the collaborative transmission sub-district of correspondence shine upon and insert pilot frequency sequence after send, and described pilot frequency sequence generation rule and resource mapping ruler information sent to this terminal, described pilot frequency sequence generation rule and resource mapping ruler information are used to offer this terminal and carry out data demodulates;
The non-service cell control unit is used for according to the pilot frequency sequence generation rule and the resource mapping ruler that obtain, the data that will be transferred to this terminal in the collaborative transmission sub-district of correspondence shine upon and insert pilot frequency sequence after send.
14. system according to claim 11 is characterized in that, described pilot frequency sequence generation rule and resource mapping ruler determining unit are included in the sub-district control unit as logic entity, or as independently physical entity existence,
The sub-district control unit that comprises described pilot frequency sequence generation rule and resource mapping ruler determining unit is the Serving cell control unit, or is the non-service cell control unit.
15. system according to claim 14 is characterized in that, when described pilot frequency sequence generation rule and resource mapping ruler determining unit are included in the sub-district control unit as logic entity,
Described pilot frequency sequence generation rule and resource mapping ruler determining unit, the pilot frequency sequence generation rule and the resource mapping ruler that also are further used for determining send other sub-district control units by X2 interface.
16. system according to claim 15, it is characterized in that, described pilot frequency sequence generation rule and resource mapping ruler determining unit, be used for receiving other district pilots sequence generation rules and resource mapping ruler information, and determine to obtain pilot frequency sequence generation rule and resource mapping ruler according to the pilot frequency sequence generation rule and the resource mapping ruler of all collaborative transmission sub-districts by X2 interface.
17. system according to claim 15, it is characterized in that, described pilot frequency sequence generation rule and resource mapping ruler determining unit are used for the pilot frequency sequence generation rule of respective cell and resource mapping ruler as pilot frequency sequence generation rule and resource mapping ruler.
18. system according to claim 14 is characterized in that, when described pilot frequency sequence generation rule and resource mapping ruler determining unit are included in the sub-district control unit as logic entity,
Described pilot frequency sequence generation rule and resource mapping ruler determining unit are used for determining section pilot frequency sequence generation rule and resource mapping ruler, obtain remainder pilot frequency sequence generation rule and resource mapping ruler by the configuration information of preserving in advance; By X2 interface described part pilot frequency sequence generation rule and resource mapping ruler are sent to other sub-district control units;
The sub-district control unit that does not comprise described pilot frequency sequence generation rule and resource mapping ruler determining unit, be used for receiving described part pilot frequency sequence generation rule and resource mapping ruler, and obtain remainder pilot frequency sequence generation rule and resource mapping ruler by the configuration information of preserving in advance by X2 interface.
19. according to any described system in the claim 13～18, it is characterized in that, described pilot frequency sequence generation rule and resource mapping ruler are: the pilot frequency sequence generation rule and the resource mapping ruler of any one collaborative transmission sub-district, and with collaborative pilot frequency sequence generation rule and the resource mapping ruler that transmits sub-district relevant pilot frequency sequence generation rule and resource mapping ruler or be independent of collaborative arbitrarily transmission sub-district.
20. according to any described system in the claim 13～18, it is characterized in that described pilot frequency sequence generation rule and resource mapping ruler comprise: one or more in the resource scheduling information of multi-cell synergetic transmission cell identity information, multi-cell synergetic transmission center frequency information, multi-cell synergetic transmission band width configuration information and multi-cell synergetic transmission.
21. system according to claim 20, it is characterized in that, described multi-cell synergetic transmission cell identity information is: the cell identity information that is independent of collaborative arbitrarily transmission sub-district self identification information, with the relevant cell identity information of collaborative transmission sub-district self identification information, or certain collaborative transmission sub-district self identification information.
22. system according to claim 13 is characterized in that, described Serving cell control unit is used for by the mode of demonstration or implicit expression or part display part implicit expression described pilot frequency sequence generation rule and resource mapping ruler information being sent to this terminal.
23. system according to claim 13 is characterized in that, described Serving cell control unit sends to this terminal with described pilot frequency sequence generation rule and resource mapping ruler information by DCI or RRC signaling.
24. system according to claim 13 is characterized in that, described pilot frequency sequence generation rule and resource mapping ruler are used to offer this terminal and carry out data demodulates.
25. a cell control equipment is characterized in that, comprising:
Map unit is used for according to the pilot frequency sequence generation rule and the resource mapping ruler that obtain, and the data that will be transferred to this terminal in the collaborative transmission sub-district of correspondence are shone upon and inserted pilot frequency sequence;
First transmitting element is used for mapping and the data after inserting pilot frequency sequence send.
26. equipment according to claim 25 is characterized in that, also further comprises:
Second transmitting element is used for described pilot frequency sequence generation rule and resource mapping ruler information are sent to this terminal, and described pilot frequency sequence generation rule and resource mapping ruler information are used to offer this terminal and carry out data demodulates.
27. according to claim 25 or 26 described equipment, it is characterized in that, also further comprise:
Pilot frequency sequence generation rule and resource mapping ruler determining unit, be used for determining the pilot frequency sequence generation rule and the resource mapping ruler of collaborative transmission sub-district, pilot frequency sequence generation rule and the resource mapping ruler of determining sent other sub-district control units by X2 interface.
28. according to claim 25 or 26 described equipment, it is characterized in that, also further comprise:
Pilot frequency sequence generation rule and resource mapping ruler determining unit, be used for receiving other district pilots sequence generation rules and resource mapping ruler information, and determine to obtain pilot frequency sequence generation rule and resource mapping ruler according to the pilot frequency sequence generation rule and the resource mapping ruler of all collaborative transmission sub-districts by X2 interface.
29., it is characterized in that described map unit is used to receive pilot frequency sequence generation rule and the resource mapping ruler of other cell control equipments by the collaborative transmission sub-district of X2 interface transmission according to claim 25 or 26 described equipment.
30. according to claim 25 or 26 described equipment, it is characterized in that, described map unit, be used to receive part pilot frequency sequence generation rule and the resource mapping ruler of other cell control equipments, and obtain remainder pilot frequency sequence generation rule and resource mapping ruler by the configuration information of preserving in advance by the collaborative transmission sub-district of X2 interface transmission.
31. equipment according to claim 27, it is characterized in that, described pilot frequency sequence generation rule and resource mapping ruler determining unit are used for the pilot frequency sequence generation rule of respective cell and resource mapping ruler as pilot frequency sequence generation rule and resource mapping ruler.
32. equipment according to claim 27, it is characterized in that, described pilot frequency sequence generation rule and resource mapping ruler determining unit, be used for receiving other district pilots sequence generation rules and resource mapping ruler information, and determine to obtain pilot frequency sequence generation rule and resource mapping ruler according to the pilot frequency sequence generation rule and the resource mapping ruler of all collaborative transmission sub-districts by X2 interface.
33. the method for multi-cell synergetic transmission data is characterized in that, comprising:
The pilot frequency sequence generation rule and the resource mapping ruler Information Selection pilot tone that adopt the collaborative terminal utilization of transmitting the sub-district to receive, and utilize the pilot demodulated corresponding downstream data of selecting.
34. method according to claim 33, it is characterized in that described pilot frequency sequence generation rule and resource mapping ruler comprise: one or more in the resource scheduling information of multi-cell synergetic transmission cell identity information, multi-cell synergetic transmission center frequency information, multi-cell synergetic transmission band width configuration information and multi-cell synergetic transmission.
35. method according to claim 34, it is characterized in that, the cell identity information of described multi-cell synergetic transmission is: the cell identity information that is independent of collaborative arbitrarily transmission sub-district self identification information, with the relevant cell identity information of collaborative transmission sub-district self identification information, or certain collaborative transmission sub-district self identification information.
36. a terminal is characterized in that, comprising:
Receiving element is used to receive pilot frequency sequence generation rule and the resource mapping ruler information that Serving cell sends;
Demodulating unit is used to utilize described pilot frequency sequence generation rule Information Selection pilot tone, and utilizes pilot tone and the corresponding data of selecting of resource mapping ruler demodulation.
37. terminal according to claim 36, it is characterized in that described pilot frequency sequence generation rule and resource mapping ruler comprise: one or more in the resource scheduling information of the cell identity information of multi-cell synergetic transmission, multi-cell synergetic transmission center frequency information, multi-cell synergetic transmission band width configuration information and multi-cell synergetic transmission.
38. according to the described terminal of claim 37, it is characterized in that, the cell identity information of described multi-cell synergetic transmission is: the cell identity information that is independent of collaborative arbitrarily transmission sub-district self identification information, with the relevant cell identity information of collaborative transmission sub-district self identification information, or certain collaborative transmission sub-district self identification information.
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| CN200910238127.6A CN102064868B (en) | 2009-11-16 | 2009-11-16 | Method, system and device for realizing multi-cell cooperative data transmission |
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| CN200910238127.6A CN102064868B (en) | 2009-11-16 | 2009-11-16 | Method, system and device for realizing multi-cell cooperative data transmission |
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| CN102064868A true CN102064868A (en) | 2011-05-18 |
| CN102064868B CN102064868B (en) | 2014-06-18 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102547872A (en) * | 2012-01-18 | 2012-07-04 | 电信科学技术研究院 | Method and device for transmitting bandwidth information |
| WO2012155721A1 (en) * | 2011-08-02 | 2012-11-22 | 中兴通讯股份有限公司 | Method, system and control station for implementing data transmission in super cell |
| CN103427890A (en) * | 2012-05-24 | 2013-12-04 | 华为技术有限公司 | Method for transmitting information, sending end device and receiving end device |
| WO2014012248A1 (en) * | 2012-07-20 | 2014-01-23 | 华为技术有限公司 | Service transmission method, device and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101373999B (en) * | 2008-08-12 | 2013-01-16 | 中兴通讯股份有限公司 | Pilot transmission method for down collaboration multi-point transmission |
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| WO2012155721A1 (en) * | 2011-08-02 | 2012-11-22 | 中兴通讯股份有限公司 | Method, system and control station for implementing data transmission in super cell |
| CN102547872A (en) * | 2012-01-18 | 2012-07-04 | 电信科学技术研究院 | Method and device for transmitting bandwidth information |
| CN103427890A (en) * | 2012-05-24 | 2013-12-04 | 华为技术有限公司 | Method for transmitting information, sending end device and receiving end device |
| CN103427890B (en) * | 2012-05-24 | 2016-09-07 | 华为技术有限公司 | The method of transmission information, transmitting terminal device and receiving end device |
| WO2014012248A1 (en) * | 2012-07-20 | 2014-01-23 | 华为技术有限公司 | Service transmission method, device and system |
| CN104137637A (en) * | 2012-07-20 | 2014-11-05 | 华为技术有限公司 | Service transmission method, device and system |
| US9648610B2 (en) | 2012-07-20 | 2017-05-09 | Huawei Technologies Co., Ltd. | Service transmission method, device, and system |
| CN104137637B (en) * | 2012-07-20 | 2018-11-09 | 华为技术有限公司 | A kind of business transmitting method, equipment, readable storage medium storing program for executing and system |
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| US11076399B2 (en) | 2012-07-20 | 2021-07-27 | Huawei Technologies Co., Ltd. | Service transmission method, device, and system in a wireless communication network |
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