CN102064868B - 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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- CN102064868B CN102064868B CN200910238127.6A CN200910238127A CN102064868B CN 102064868 B CN102064868 B CN 102064868B CN 200910238127 A CN200910238127 A CN 200910238127A CN 102064868 B CN102064868 B CN 102064868B
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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, refer to especially a kind of method, system and device of realizing multi-cell cooperative data transmission.
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), LTE-Advanced system is the upgrading of LTE system.
Multi-point cooperative transmission technology, by combined dispatching or the cooperative transmission of multiple communities of separating on geographical position, improves user's received signal quality, reduces the interference of minizone, thereby effectively improves power system capacity and edge customer spectrum efficiency.In the time that user data adopts multi-point joint transmission, due to the configuration information difference of community, multi-cell data transmission and pilot tone mapping variation can cause multi-cell synergetic transmission time, 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, pilot frequency sequence difference, thus cannot demodulating data, cannot support multi-point joint to send.
Summary of the invention
The invention provides a kind of method, system and device of realizing multi-cell cooperative data transmission, in order to realize each community mapping ruler when inconsistent and the data and the pilot tone that cause send inconsistent problem.
A kind of method that realizes multi-cell cooperative data transmission that the embodiment of the present invention provides, comprising:
Cooperative transmission community comprises center cell and non-central community, and cooperative transmission community obtains pilot frequency sequence generation rule and resource mapping rule in the following manner:
Center cell determining section pilot frequency sequence generation rule and resource mapping rule, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance;
Center cell sends to non-central community by X2 interface by described part pilot frequency sequence generation rule and resource mapping rule, and non-central community obtains remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance;
Cooperative transmission community produces pilot frequency sequence according to the pilot frequency sequence generation rule obtaining, and then, according to the resource mapping rule obtaining, data and the pilot frequency sequence that will be transferred to terminal shine upon rear transmission, and,
Described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal by Serving cell.
A kind of system that realizes multi-cell cooperative data transmission that the embodiment of the present invention provides, comprise: more than one community control unit and resource mapping rule determining unit, the corresponding cooperative transmission community of each community control unit, wherein, Yi Ge community control unit is Serving cell control unit, remaining community control unit is non-service cell control unit
Pilot frequency sequence generation rule and resource mapping rule determining unit, for determining pilot frequency sequence generation rule and the resource mapping rule of cooperative transmission community;
When described pilot frequency sequence generation rule and resource mapping rule determining unit is included in the control unit of Yi Ge community as logic entity, described pilot frequency sequence generation rule and resource mapping rule determining unit, for determining section pilot frequency sequence generation rule and resource mapping rule, obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance; By X2 interface, described part pilot frequency sequence generation rule and resource mapping rule are sent to other community control units;
Do not comprise the community control unit of described pilot frequency sequence generation rule and resource mapping rule determining unit, for receiving described part pilot frequency sequence generation rule and resource mapping rule by X2 interface, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance;
Serving cell control unit, for pilot frequency sequence generation rule and resource mapping rule according to obtaining, the data that will be transferred to this terminal in corresponding cooperative transmission community shine upon and insert pilot frequency sequence after send, and described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal, described pilot frequency sequence generation rule and resource mapping Rule Information are used for offering this terminal and carry out data demodulates;
Non-service cell control unit, for pilot frequency sequence generation rule and resource mapping rule according to obtaining, the data that will be transferred to this terminal in corresponding cooperative transmission community shine upon and insert pilot frequency sequence after send.
A kind of cell control equipment that the embodiment of the present invention provides, comprising:
Map unit, for pilot frequency sequence generation rule and resource mapping rule according to obtaining, the data that will be transferred to this terminal in corresponding cooperative transmission community are shone upon and are inserted pilot frequency sequence; And for receiving part pilot frequency sequence generation rule and the resource mapping rule of the cooperative transmission community that other cell control equipments send by X2 interface, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance;
The first transmitting element, for sending the data of shining upon and insert after pilot frequency sequence.
The method of a kind of multi-cell cooperative data transmission that the embodiment of the present invention provides, comprising:
Adopt pilot frequency sequence generation rule and the resource mapping Rule Information that the terminal utilization of cooperative transmission community is received to select pilot tone, and the corresponding downlink data of pilot demodulated of utilization selection, wherein, described pilot frequency sequence generation rule and resource mapping Rule Information are to obtain in the following manner and be sent to described terminal: cooperative transmission community comprises center cell and non-central community, center cell determining section pilot frequency sequence generation rule and resource mapping rule, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance; Center cell sends to non-central community by X2 interface by described part pilot frequency sequence generation rule and resource mapping rule, non-central community obtains remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance, cooperative transmission community produces pilot frequency sequence according to the pilot frequency sequence generation rule obtaining, then according to the resource mapping rule obtaining, data and the pilot frequency sequence that will be transferred to terminal shine upon rear transmission, and described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal by Serving cell.
A kind of terminal that the embodiment of the present invention provides, comprising:
Receiving element, the pilot frequency sequence generation rule and the resource mapping Rule Information that send for receiving Serving cell, wherein, described pilot frequency sequence generation rule and resource mapping Rule Information are to obtain in the following manner and be sent to this terminal: cooperative transmission community comprises center cell and non-central community, center cell determining section pilot frequency sequence generation rule and resource mapping rule, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance; Center cell sends to non-central community by X2 interface by described part pilot frequency sequence generation rule and resource mapping rule, non-central community obtains remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance, cooperative transmission community produces pilot frequency sequence according to the pilot frequency sequence generation rule obtaining, then according to the resource mapping rule obtaining, data and the pilot frequency sequence that will be transferred to this terminal shine upon rear transmission, and described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal by Serving cell;
Demodulating unit, for utilizing described pilot frequency sequence generation rule Information Selection pilot tone, and utilizes pilot tone and the corresponding data of resource mapping rule demodulation selected.
In embodiments of the present invention, when user data adopts when multi-point joint transmission, related cell is according to unified resource mapping rule mapping (enum) data and pilot tone, and by signaling user relevant configuration information.Owing to adopting unified mapping ruler, therefore can guarantee many cell transmission time, mapping is consistent to each cooperation district data-mapping with pilot tone.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of the method that realizes transfer of data of the embodiment of the present invention;
Frequency centered by Fig. 2, PRB mapping and all schematic diagrames of consistent scene of system bandwidth;
Fig. 3 be centered by frequency, PRB mapping is identical, but the schematic diagram of the different scene of system bandwidth;
Frequency centered by Fig. 4, the schematic diagram of the scene of PRB mapping different with system bandwidth (5M and 10M);
Frequency centered by Fig. 5, PRB shines upon the schematic diagram of the scene different with system bandwidth; ;
Frequency and but the schematic diagram of scene that system bandwidth identical different with PRB mapping centered by Fig. 6;
Fig. 7 is the structural representation that the embodiment of the present invention realizes the system of multi-cell cooperative data transmission;
Fig. 8 is the structural representation of a kind of cell control equipment of the embodiment of the present invention;
Fig. 9 is the structural representation of the another kind of cell control equipment of the embodiment of the present invention;
Figure 10 is the structural representation of the terminal of the embodiment of the present invention.
Embodiment
Simplify terminal demodulating process when the multi-cell synergetic transmission in order to solve, in the embodiment of the present invention, cooperative transmission community produces pilot frequency sequence according to the pilot frequency sequence generation rule obtaining, then according to the resource mapping rule obtaining, data and the pilot frequency sequence that will be transferred to terminal shine upon rear transmission, and described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal by Serving cell.
It should be noted that, for the cooperative transmission community of a terminal, the pilot frequency sequence generation rule of each community can be identical, unified or similar.Or each cooperative transmission community adopt pilot frequency sequence generation rule there is certain rule, end side can according to obtain pilot frequency sequence generation rule and certain rule obtain correct pilot tone.
Equally, for the cooperative transmission community of a terminal, the resource mapping rule of each community can be identical, unified or similar.Or the resource mapping rule that each cooperative transmission community adopts has certain rule, end side can obtain the correct data of carrying out according to the resource mapping rule obtaining and this rule.
In embodiments of the present invention, adopt unified resource mapping rule to refer to and in the cooperative transmission community for a terminal, use identical resource mapping rule.Adopt unified pilot frequency sequence generation rule to refer to and in the cooperative transmission community for a terminal, use identical pilot frequency sequence generation rule.
Here, Serving cell can, in the time of accessing terminal to network, send to terminal by described pilot frequency sequence generation rule and resource mapping rule, also can, carrying out in cooperative transmission process, pilot frequency sequence generation rule and resource mapping rule be sent to terminal.Serving little going also can be in the time of accessing terminal to network, described pilot frequency sequence generation rule and resource mapping rule are sent to terminal, but in the time that pilot frequency sequence generation rule and resource mapping rule change, can send at any time pilot frequency sequence generation rule and resource mapping rule to terminal, to upgrade pilot frequency sequence generation rule and the resource mapping rule of end side.
Shown in Figure 1, the method that realizes transfer of data of the embodiment of the present invention comprises the following steps:
Step 101: in the time adopting multi-cell synergetic transmission, cooperative transmission community produces pilot frequency sequence according to the unified pilot frequency sequence generation rule obtaining, then according to unified resource mapping rule, data and the pilot frequency sequence that will be transferred to terminal shine upon rear transmission.
Here, cooperative transmission community can comprise center cell and non-central community, and in cooperative transmission community community centered by the community of definite pilot frequency sequence generation rule and resource mapping rule, and other communities in cooperative transmission community are non-central community.Center cell can be the Serving cell of terminal, can be also non-service cell.
Cooperative transmission community can obtain unified pilot frequency sequence generation rule and resource mapping rule in the following manner: unified pilot frequency sequence generation rule and resource mapping rule are determined in center cell, and by X2 interface, the unified pilot frequency sequence generation rule and the resource mapping rule that obtain is sent to non-central community.
Center cell determines that unified pilot frequency sequence generation rule and resource mapping rule can realize like this: non-central community is passed to center cell by this district pilots sequence generation rule and resource mapping rule by X2 interface, and center cell is according to the pilot frequency sequence generation rule of all cooperative transmissions community and definite unified pilot frequency sequence generation rule and the resource mapping rule of obtaining of resource mapping rule.
Center cell determines that unified pilot frequency sequence generation rule and resource mapping rule can realize like this: the pilot frequency sequence generation rule of Jiang Zhe community, center cell and resource mapping rule are defined as unified pilot frequency sequence generation rule and resource mapping rule.
In the time that described pilot frequency sequence generation rule and resource mapping rule comprise multi-cell synergetic transmission set identification information, and between multi-cell synergetic transmission set identification and cell ID, have corresponding relation, cooperation district obtains multi-cell synergetic transmission set identification according to this cell ID.When pilot frequency sequence generation rule and resource mapping rule comprise the centre frequency of multi-cell synergetic transmission, and when the centre frequency of multiple communities of cooperative transmission is consistent, the centre frequency that cooperative transmission community can be using self centre frequency as multi-cell synergetic transmission.When pilot frequency sequence generation rule and resource mapping rule comprise the band width configuration information of multi-cell synergetic transmission, and when the band width configuration of multiple communities of cooperative transmission is consistent, the bandwidth of the community of cooperative transmission using self bandwidth as multi-cell synergetic transmission, now can notify without X2 signaling.
Described cooperative transmission community comprises center cell and non-central community, cooperative transmission community can obtain unified pilot frequency sequence generation rule and resource mapping rule in the following manner: the pilot frequency sequence generation rule that center cell determining section is unified and resource mapping rule, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance; Center cell sends to non-central community by X2 interface by described part pilot frequency sequence generation rule and resource mapping rule, and non-central community obtains remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance.
Described unified pilot frequency sequence generation rule and resource mapping rule are: the pilot frequency sequence generation rule of any one cooperative transmission community and resource mapping rule, as the pilot frequency sequence generation rule of Serving cell and resource mapping rule, the pilot frequency sequence generation rule relevant to cooperative transmission community and resource mapping rule or be independent of pilot frequency sequence generation rule and the resource mapping rule of any cooperative transmission community.
Described pilot frequency sequence generation rule and resource mapping rule 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 one or more in the unified resource schedule information of band width configuration information and multi-cell synergetic transmission.
The unified cell identity information of described multi-cell synergetic transmission can be: the cell identity information that is independent of any cooperative transmission community self identification information, the cell identity information relevant to cooperative transmission community self identification information, or certain cooperative transmission community self identification information, as the identification information of Serving cell.
Step 102: described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal by Serving cell.
Serving cell can send to this terminal by described pilot frequency sequence generation rule and resource mapping Rule Information by the mode of demonstration, implicit expression or part display section implicit expression.Dominant mode comprises high-level signaling (RRC) and two kinds of modes of PDCCH (DCI), be that Serving cell can send to this terminal by DCI or RRC signaling by described pilot frequency sequence generation rule and resource mapping Rule Information, but be not limited to this two kinds of modes.The mode that related signaling can adopt combined coding or encode respectively.What is called is dominant is exactly to refer to that control 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.
Step 103: the pilot frequency sequence generation rule that this terminal utilization is received and resource mapping Rule Information are selected pilot tone, and utilize the corresponding downlink data of pilot demodulated of selecting.This step can be used as the process of independent reception data.
For the embodiment optimizing, technical scheme of the present invention is described again below.
The prioritization scheme of following scene out of the ordinary, according to the scene of optimizing, can reduce the expense of part signaling, or reduce by other means the expense of signaling.
Cooperative transmission community comprises center cell and non-central community, centered by cooperative transmission community when community, center cell can obtain pilot frequency sequence generation rule and resource mapping rule according to current resource situation configuration, certainly be not limited to this, also can receive pilot frequency sequence generation rule and the resource mapping Rule Information that non-central community sends unified pilot frequency sequence generation rule and the resource mapping rule of determining multi-cell synergetic transmission according to these information by X2 interface.And, can also be according to priority or class information, pilot frequency sequence generation rule and the resource mapping Rule Information of the preferential non-central community with reference to high priority are configured.
Cooperative transmission community comprises center cell and non-central community, in the time that cooperative transmission community is non-central community, obtained after pilot frequency sequence generation rule and resource mapping rule based on center cell, non-central community can obtain pilot frequency sequence generation rule and resource mapping rule according to following mode: whole pilot frequency sequence generation rules and resource mapping rule that non-central community sends by X2 interface receiving center community.Such as: if described pilot frequency sequence generation rule and resource mapping rule 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 cooperative transmission community of this terminal by X2 interface.
In the time that cooperative transmission community is non-central community, can obtain pilot frequency sequence generation rule and resource mapping rule according to following mode: a part of pilot frequency sequence generation rule and resource mapping rule that non-central community sends by X2 interface receiving center community, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance.Such as: center cell only sends to non-central community by the resource scheduling information of multi-cell synergetic transmission, multi-cell synergetic transmission set identification, information mapping (enum) data and the pilot tone such as centre frequency, multi-cell synergetic transmission bandwidth of multi-cell synergetic transmission can be determined according to agreement agreement in advance in non-central community.
Pilot frequency sequence generation rule and resource mapping rule need to be shared in all COMP community, conventionally notify related cell by X2 interface.Related cell is based on unified centre frequency, bandwidth and resource scheduling information mapping (enum) data; ID based on unified, unified bandwidth, unified resource scheduling information generating pilot frequency sequence (scrambler and orthogonal code) also insert on corresponding running time-frequency resource.
Referring to as shown in 2, all transmitting procedures of data under consistent scene of frequency and system bandwidth centered by embodiment 1, wherein dash area represents COMP resource, all the other represent non-COMP resource:
(1) in the time that the data acquisition of terminal is used 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 and unified resource schedule information are inserted identical pilot configuration (comprising pattern and sequence).
This scene related cell bandwidth is identical with centre frequency configuration, unifies bandwidth and centre frequency without extra signaling.
(2) base station of Serving cell, by the relevant information such as resource mapping and pilot frequency sequence, sends to UE.
(3) terminal is according to related signaling, as comp_id, and centre frequency, bandwidth of cell configuration, resource scheduling information is selected the corresponding data of suitable pilot demodulated.Wherein, the parsing of resource scheduling information and non-comp resource consistence, i.e. the definition of Resource Block is to be all as the criterion with centre frequency and the bandwidth of Serving cell.
Shown in Figure 3, centered by embodiment 2, frequency is identical, but data transmission procedure under the different scene of system bandwidth:
(1) in the time that 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 and unified resource schedule information are inserted identical pilot configuration (comprising pattern and sequence).
This scene related cell band width configuration difference, needs extra signaling to unify bandwidth, is conventionally as the criterion with Serving cell, and notifies relevant base station by X2 interface.
(2) base station side of Serving cell, by the relevant information such as resource mapping and pilot frequency sequence, sends to UE.
(3) terminal is according to related signaling, as comp_id, and centre frequency, bandwidth of cell configuration, resource scheduling information is selected the corresponding data of suitable pilot demodulated.When band width configuration is take Serving cell as punctual, the parsing of resource scheduling information and non-comp resource consistence, i.e. the definition of Resource Block is to be all as the criterion with centre frequency and the bandwidth of Serving cell.
Shown in Fig. 4～6, the data transmission procedure of three scenes that embodiment 3 does not align for Resource Block:
The wherein identical but scene of system bandwidth difference (5M and 10M) of frequency centered by Fig. 4; The frequency scene different with system bandwidth centered by Fig. 5; Frequency difference centered by Fig. 6 but the identical scene of system bandwidth.
(1) in the time that 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 and unified resource schedule information are inserted identical pilot configuration (comprising pattern and sequence).
This scenario resources piece does not align, and centre frequency and bandwidth need to be unified in related cell, guarantees after Resource Block alignment, according to unified resource schedule information mapping (enum) data.Centre frequency, unified bandwidth is notified relevant base station by X2 conventionally with resource scheduling information.
(2) base station side of Serving cell, by the relevant information such as resource mapping and pilot frequency sequence, sends to UE.
(3) terminal is according to related signaling, as comp_id, and centre frequency, bandwidth of cell configuration, resource scheduling information is selected the corresponding data of suitable pilot demodulated.
When relevant configuration is take Serving cell as punctual, the parsing of resource scheduling information and non-comp resource consistence, i.e. the definition of Resource Block is to be all as the criterion with centre frequency and the bandwidth of Serving cell.
Shown in Figure 7, the system that the embodiment of the present invention realizes multi-cell cooperative data transmission comprises:
More than one community control unit and pilot frequency sequence generation rule and resource mapping rule determining unit, the corresponding cooperative transmission community of each community control unit, wherein, Yi Ge community control unit is Serving cell control unit, remaining community control unit is non-service cell control unit
Pilot frequency sequence generation rule and resource mapping rule determining unit 71, for determining unified pilot frequency sequence generation rule and the resource mapping rule of cooperative transmission community;
Serving cell control unit 72, for unified pilot frequency sequence generation rule and resource mapping rule according to obtaining, the data that will be transferred to this terminal in corresponding cooperative transmission community shine upon and insert pilot frequency sequence after send, and described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal, described pilot frequency sequence generation rule and resource mapping Rule Information are used for offering this terminal and carry out data demodulates;
Non-service cell control unit 73, for unified pilot frequency sequence generation rule and resource mapping rule according to obtaining, the data that will be transferred to this terminal in corresponding cooperative transmission community shine upon and insert pilot frequency sequence after send.
Described pilot frequency sequence generation rule and resource mapping rule determining unit are included in the control unit of Yi Ge community as logic entity, or as independently physical entity existence,
The community control unit that comprises described pilot frequency sequence generation rule and resource mapping rule determining unit is Serving cell control unit, or is non-service cell control unit.
When described pilot frequency sequence generation rule and resource mapping rule determining unit is included in the control unit of Yi Ge community as logic entity,
Described pilot frequency sequence generation rule and resource mapping rule determining unit, be also further used for unified pilot frequency sequence generation rule and the resource mapping rule determined to send other community control units by X2 interface.
Described pilot frequency sequence generation rule and resource mapping rule determining unit, for receive other district pilots sequence generation rule and resource mapping Rule Informations by X2 interface, and according to the pilot frequency sequence generation rule of all cooperative transmissions community and definite unified pilot frequency sequence generation rule and the resource mapping rule of obtaining of resource mapping rule.
Described pilot frequency sequence generation rule and resource mapping rule determining unit, for using the pilot frequency sequence generation rule of respective cell and resource mapping rule as unified pilot frequency sequence generation rule and resource mapping rule.
When described pilot frequency sequence generation rule and resource mapping rule determining unit is included in the control unit of Yi Ge community as logic entity,
Described pilot frequency sequence generation rule and resource mapping rule determining unit, for the unified pilot frequency sequence generation rule of determining section and resource mapping rule, obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance; By X2 interface, described part pilot frequency sequence generation rule and resource mapping rule are sent to other community control units;
Do not comprise the community control unit of described pilot frequency sequence generation rule and resource mapping rule determining unit, for receiving described part pilot frequency sequence generation rule and resource mapping rule by X2 interface, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance.
Described unified pilot frequency sequence generation rule and resource mapping rule are: the pilot frequency sequence generation rule of any one cooperative transmission community and resource mapping rule, or be independent of pilot frequency sequence generation rule and the resource mapping rule of any cooperative transmission community.
Described pilot frequency sequence generation rule and resource mapping rule 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, for sending to this terminal by the mode of demonstration or implicit expression or part display section implicit expression by described pilot frequency sequence generation rule and resource mapping Rule Information.
Described Serving cell control unit, sends to this terminal by described pilot frequency sequence generation rule and resource mapping Rule Information by DCI or RRC signaling.
Shown in Figure 8, corresponding with Serving cell control unit, a kind of cell control equipment of the embodiment of the present invention, comprising:
Map unit 81, for unified pilot frequency sequence generation rule and resource mapping rule according to obtaining, the data that will be transferred to this terminal in corresponding cooperative transmission community are shone upon and are inserted pilot frequency sequence;
The first transmitting element 82, for sending the data of shining upon and insert after pilot frequency sequence;
Can further include: the second transmitting element 83, for described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal, described pilot frequency sequence generation rule and resource mapping Rule Information are used for offering this terminal and carry out data demodulates.Such as: described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal by DCI or RRC signaling.
Optionally, can further include: pilot frequency sequence generation rule and resource mapping rule determining unit, for determining unified pilot frequency sequence generation rule and the resource mapping rule of cooperative transmission community, unified pilot frequency sequence generation rule and the resource mapping rule determined are sent to other community control units by X2 interface.
Optionally, can further include: pilot frequency sequence generation rule and resource mapping rule determining unit, for receive other district pilots sequence generation rule and resource mapping Rule Informations by X2 interface, and according to the pilot frequency sequence generation rule of all cooperative transmissions community and definite unified pilot frequency sequence generation rule and the resource mapping rule of obtaining of resource mapping rule.
Optionally, described map unit, for receiving unified pilot frequency sequence generation rule and the resource mapping rule of the cooperative transmission community that other cell control equipments send by X2 interface.
Described map unit, can unify pilot frequency sequence generation rule and resource mapping rule for the part that receives the cooperative transmission community that other cell control equipments send by X2 interface, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance.
Described pilot frequency sequence generation rule and resource mapping rule determining unit, can be for using the pilot frequency sequence generation rule of respective cell and resource mapping rule as unified pilot frequency sequence generation rule and resource mapping rule.
Described pilot frequency sequence generation rule and resource mapping rule determining unit, can be for receive other district pilots sequence generations rule and resource mapping Rule Information by X2 interface, and according to the pilot frequency sequence generation rule of all cooperative transmissions community and definite unified pilot frequency sequence generation rule and the resource mapping rule of obtaining of resource mapping rule.
Shown in Figure 9, corresponding with non-service cell control unit, a kind of cell control equipment that the embodiment of the present invention provides, comprising:
Map unit 91, for unified pilot frequency sequence generation rule and resource mapping rule according to obtaining, the data that will be transferred to this terminal in corresponding cooperative transmission community are shone upon and are inserted pilot frequency sequence;
The first transmitting element 92, for sending the data of shining upon and insert after pilot frequency sequence.
Map unit 91, can receive unified pilot frequency sequence generation rule and resource mapping rule from Serving cell control unit, also can be to receive only a part of pilot frequency sequence generation rule and resource mapping rule, then pilot frequency sequence generation rule and the resource mapping rule of the information acquisition remainder of preserving according to self.
Can further include: pilot frequency sequence generation rule and resource mapping rule determining unit, for determining unified pilot frequency sequence generation rule and the resource mapping rule of cooperative transmission community, unified pilot frequency sequence generation rule and the resource mapping rule determined are sent to other community control units by X2 interface.
As one of above-described embodiment substitute mode, pilot frequency sequence generation rule and resource mapping rule determining unit, also can be for receive other district pilots sequence generations rule and resource mapping Rule Information by X2 interface, and according to the pilot frequency sequence generation rule of all cooperative transmissions community and definite unified pilot frequency sequence generation rule and the resource mapping rule of obtaining of resource mapping rule.
Described map unit, can be for receiving unified pilot frequency sequence generation rule and the resource mapping rule of the cooperative transmission community that other cell control equipments send by X2 interface.
Described map unit, can unify pilot frequency sequence generation rule and resource mapping rule for the part that receives the cooperative transmission community that other cell control equipments send by X2 interface, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance.
Described pilot frequency sequence generation rule and resource mapping rule determining unit, can be for using the pilot frequency sequence generation rule of respective cell and resource mapping rule as unified pilot frequency sequence generation rule and resource mapping rule.
Described pilot frequency sequence generation rule and resource mapping rule determining unit, can be for receive other district pilots sequence generations rule and resource mapping Rule Information by X2 interface, and according to the pilot frequency sequence generation rule of all cooperative transmissions community and definite unified pilot frequency sequence generation rule and the resource mapping rule of obtaining of resource mapping rule.
Optionally, can further include: pilot frequency sequence generation rule and resource mapping rule determining unit, for determining unified pilot frequency sequence generation rule and the resource mapping rule of cooperative transmission community, unified pilot frequency sequence generation rule and the resource mapping rule determined are sent to other community control units by X2 interface.
Optionally, can further include: pilot frequency sequence generation rule and resource mapping rule determining unit, for receive other district pilots sequence generation rule and resource mapping Rule Informations by X2 interface, and according to the pilot frequency sequence generation rule of all cooperative transmissions community and definite unified pilot frequency sequence generation rule and the resource mapping rule of obtaining of resource mapping rule.
A kind of terminal shown in Figure 10, the embodiment of the present invention provides, comprising:
Receiving element 11, the pilot frequency sequence generation rule and the resource mapping Rule Information that send for receiving Serving cell;
Demodulating unit 12, for utilizing described pilot frequency sequence generation rule and resource mapping Rule Information to select pilot tone, and utilizes the corresponding data of pilot demodulated of selecting.
Described pilot frequency sequence generation rule and resource mapping rule 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 and not depart from the spirit and scope of the present invention the present invention.Like this, if within of the present invention these are revised and modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the present invention is also intended to comprise these changes and modification interior.
Claims (35)
1. a method that realizes multi-cell cooperative data transmission, is characterized in that, the method comprises the following steps:
Cooperative transmission community comprises center cell and non-central community, and cooperative transmission community obtains pilot frequency sequence generation rule and resource mapping rule in the following manner:
Center cell determining section pilot frequency sequence generation rule and resource mapping rule, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance;
Center cell sends to non-central community by X2 interface by described part pilot frequency sequence generation rule and resource mapping rule, and non-central community obtains remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance;
Cooperative transmission community produces pilot frequency sequence according to the pilot frequency sequence generation rule obtaining, and then, according to the resource mapping rule obtaining, data and the pilot frequency sequence that will be transferred to terminal shine upon rear transmission, and,
Described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal by Serving cell.
2. method according to claim 1, is characterized in that, described cooperative transmission community comprises center cell and non-central community, and cooperative transmission community is Gains resources mapping ruler in the following manner:
The pilot frequency sequence generation rule that center cell is definite and resource mapping rule, and by X2 interface, the pilot frequency sequence generation rule obtaining and resource mapping rule are sent to non-central community.
3. method according to claim 2, is characterized in that, the pilot frequency sequence generation rule that center cell is definite and resource mapping rule, comprising:
Non-central community is passed to center cell by this district pilots sequence generation rule and resource mapping rule by X2 interface, and the pilot frequency sequence generation rule and the resource mapping rule that obtain are determined according to the pilot frequency sequence generation rule of all cooperative transmissions community and resource mapping rule in center cell.
4. method according to claim 2, is characterized in that, the pilot frequency sequence generation rule that center cell is definite and resource mapping rule, comprising:
The pilot frequency sequence generation rule of Jiang Zhe community, center cell and resource mapping rule are defined as pilot frequency sequence generation rule and resource mapping rule.
5. according to the method described in any one in claim 1～4, it is characterized in that, described pilot frequency sequence generation rule and resource mapping rule are:
The pilot frequency sequence generation rule of any one cooperative transmission community and resource mapping rule, pilot frequency sequence generation rule and the resource mapping rule relevant to cooperative transmission community or be independent of pilot frequency sequence generation rule and the resource mapping rule of any cooperative transmission community.
6. according to the method described in any one in claim 1～4, it is characterized in that, described pilot frequency sequence generation rule and resource mapping rule 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.
7. according to the method for claim 6, it is characterized in that, the cell identity information of described multi-cell synergetic transmission is: be independent of the cell identity information of any cooperative transmission community self identification information, cell identity information or certain the cooperative transmission community self identification information relevant to cooperative transmission community self identification information.
8. according to the method described in any one in claim 1～4, it is characterized in that, described center cell is: Serving cell, or non-service cell.
9. method according to claim 1, is characterized in that, described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal by Serving cell, comprising:
Serving cell sends to this terminal by the mode of demonstration or implicit expression or part display section implicit expression by described pilot frequency sequence generation rule and resource mapping Rule Information.
10. method according to claim 9, is characterized in that, Serving cell sends to this terminal by described pilot frequency sequence generation rule and resource mapping Rule Information by DCI or RRC signaling.
11. methods according to claim 1, is characterized in that, described pilot frequency sequence generation rule and resource mapping rule are used for offering this terminal and carry out data demodulates.
Realize the system of multi-cell cooperative data transmission for 12. 1 kinds, it is characterized in that, comprise: more than one community control unit and pilot frequency sequence generation rule and resource mapping rule determining unit, the corresponding cooperative transmission community of each community control unit, wherein, Yi Ge community control unit is Serving cell control unit, and remaining community control unit is non-service cell control unit
Pilot frequency sequence generation rule and resource mapping rule determining unit, for determining pilot frequency sequence generation rule and the resource mapping rule of cooperative transmission community;
When described pilot frequency sequence generation rule and resource mapping rule determining unit is included in the control unit of Yi Ge community as logic entity, described pilot frequency sequence generation rule and resource mapping rule determining unit, for determining section pilot frequency sequence generation rule and resource mapping rule, obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance; By X2 interface, described part pilot frequency sequence generation rule and resource mapping rule are sent to other community control units;
Do not comprise the community control unit of described pilot frequency sequence generation rule and resource mapping rule determining unit, for receiving described part pilot frequency sequence generation rule and resource mapping rule by X2 interface, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance;
Serving cell control unit, for pilot frequency sequence generation rule and resource mapping rule according to obtaining, the data that will be transferred to this terminal in corresponding cooperative transmission community shine upon and insert pilot frequency sequence after send, and described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal, described pilot frequency sequence generation rule and resource mapping Rule Information are used for offering this terminal and carry out data demodulates;
Non-service cell control unit, for pilot frequency sequence generation rule and resource mapping rule according to obtaining, the data that will be transferred to this terminal in corresponding cooperative transmission community shine upon and insert pilot frequency sequence after send.
13. systems according to claim 12, is characterized in that, described pilot frequency sequence generation rule and resource mapping rule determining unit are included in the control unit of Yi Ge community as logic entity, or as independently physical entity existence,
The community control unit that comprises described pilot frequency sequence generation rule and resource mapping rule determining unit is Serving cell control unit, or is non-service cell control unit.
14. systems according to claim 13, is characterized in that, when described pilot frequency sequence generation rule and resource mapping rule determining unit is included in the control unit of Yi Ge community as logic entity,
Described pilot frequency sequence generation rule and resource mapping rule determining unit, be also further used for definite pilot frequency sequence generation rule and resource mapping rule to send other community control units by X2 interface.
15. systems according to claim 14, it is characterized in that, described pilot frequency sequence generation rule and resource mapping rule determining unit, for receive other district pilots sequence generation rule and resource mapping Rule Informations by X2 interface, and according to the pilot frequency sequence generation rule of all cooperative transmissions community and definite pilot frequency sequence generation rule and the resource mapping rule of obtaining of resource mapping rule.
16. systems according to claim 14, it is characterized in that, described pilot frequency sequence generation rule and resource mapping rule determining unit, for using the pilot frequency sequence generation rule of respective cell and resource mapping rule as pilot frequency sequence generation rule and resource mapping rule.
17. according to the system described in any one in claim 12～16, it is characterized in that, described pilot frequency sequence generation rule and resource mapping rule are: the pilot frequency sequence generation rule of any one cooperative transmission community and resource mapping rule, the pilot frequency sequence generation rule relevant to cooperative transmission community and resource mapping rule or be independent of pilot frequency sequence generation rule and the resource mapping rule of any cooperative transmission community.
18. according to the system described in any one in claim 12～16, it is characterized in that, described pilot frequency sequence generation rule and resource mapping rule 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.
19. systems according to claim 18, it is characterized in that, described multi-cell synergetic transmission cell identity information is: the cell identity information that is independent of any cooperative transmission community self identification information, the cell identity information relevant to cooperative transmission community self identification information, or certain cooperative transmission community self identification information.
20. systems according to claim 12, is characterized in that, described Serving cell control unit, for sending to this terminal by the mode of demonstration or implicit expression or part display section implicit expression by described pilot frequency sequence generation rule and resource mapping Rule Information.
21. systems according to claim 12, is characterized in that, described Serving cell control unit sends to this terminal by described pilot frequency sequence generation rule and resource mapping Rule Information by DCI or RRC signaling.
22. systems according to claim 12, is characterized in that, described pilot frequency sequence generation rule and resource mapping rule are used for offering this terminal and carry out data demodulates.
23. 1 kinds of cell control equipments, is characterized in that, comprising:
Map unit, for pilot frequency sequence generation rule and resource mapping rule according to obtaining, the data that will be transferred to this terminal in corresponding cooperative transmission community are shone upon and are inserted pilot frequency sequence; And for receiving part pilot frequency sequence generation rule and the resource mapping rule of the cooperative transmission community that other cell control equipments send by X2 interface, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance;
The first transmitting element, for sending the data of shining upon and insert after pilot frequency sequence.
24. equipment according to claim 23, is characterized in that, also further comprise:
The second transmitting element, for described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal, described pilot frequency sequence generation rule and resource mapping Rule Information are used for offering this terminal and carry out data demodulates.
25. according to the equipment described in claim 23 or 24, it is characterized in that, also further comprises:
Pilot frequency sequence generation rule and resource mapping rule determining unit, for determining pilot frequency sequence generation rule and the resource mapping rule of cooperative transmission community, definite pilot frequency sequence generation rule and resource mapping rule are sent to other community control units by X2 interface.
26. according to the equipment described in claim 23 or 24, it is characterized in that, also further comprises:
Pilot frequency sequence generation rule and resource mapping rule determining unit, for receive other district pilots sequence generation rule and resource mapping Rule Informations by X2 interface, and according to the pilot frequency sequence generation rule of all cooperative transmissions community and definite pilot frequency sequence generation rule and the resource mapping rule of obtaining of resource mapping rule.
27. according to the equipment described in claim 23 or 24, it is characterized in that, described map unit, for receiving pilot frequency sequence generation rule and the resource mapping rule of the cooperative transmission community that other cell control equipments send by X2 interface.
28. equipment according to claim 25, it is characterized in that, described pilot frequency sequence generation rule and resource mapping rule determining unit, for using the pilot frequency sequence generation rule of respective cell and resource mapping rule as pilot frequency sequence generation rule and resource mapping rule.
29. equipment according to claim 25, it is characterized in that, described pilot frequency sequence generation rule and resource mapping rule determining unit, for receive other district pilots sequence generation rule and resource mapping Rule Informations by X2 interface, and according to the pilot frequency sequence generation rule of all cooperative transmissions community and definite pilot frequency sequence generation rule and the resource mapping rule of obtaining of resource mapping rule.
The method of 30. 1 kinds of multi-cell cooperative data transmissions, is characterized in that, comprising:
Adopt pilot frequency sequence generation rule and the resource mapping Rule Information that the terminal utilization of cooperative transmission community is received to select pilot tone, and the corresponding downlink data of pilot demodulated of utilization selection, wherein, described pilot frequency sequence generation rule and resource mapping Rule Information are to obtain in the following manner and be sent to described terminal: cooperative transmission community comprises center cell and non-central community, center cell determining section pilot frequency sequence generation rule and resource mapping rule, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance; Center cell sends to non-central community by X2 interface by described part pilot frequency sequence generation rule and resource mapping rule, non-central community obtains remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance, cooperative transmission community produces pilot frequency sequence according to the pilot frequency sequence generation rule obtaining, then according to the resource mapping rule obtaining, data and the pilot frequency sequence that will be transferred to terminal shine upon rear transmission, and described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal by Serving cell.
31. methods according to claim 30, it is characterized in that, described pilot frequency sequence generation rule and resource mapping rule 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.
32. according to the method for claim 31, it is characterized in that, the cell identity information of described multi-cell synergetic transmission is: the cell identity information that is independent of any cooperative transmission community self identification information, the cell identity information relevant to cooperative transmission community self identification information, or certain cooperative transmission community self identification information.
33. 1 kinds of terminals, is characterized in that, comprising:
Receiving element, the pilot frequency sequence generation rule and the resource mapping Rule Information that send for receiving Serving cell, wherein, described pilot frequency sequence generation rule and resource mapping Rule Information are to obtain in the following manner and be sent to this terminal: cooperative transmission community comprises center cell and non-central community, center cell determining section pilot frequency sequence generation rule and resource mapping rule, and obtain remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance; Center cell sends to non-central community by X2 interface by described part pilot frequency sequence generation rule and resource mapping rule, non-central community obtains remainder pilot frequency sequence generation rule and resource mapping rule by the configuration information of preserving in advance, cooperative transmission community produces pilot frequency sequence according to the pilot frequency sequence generation rule obtaining, then according to the resource mapping rule obtaining, data and the pilot frequency sequence that will be transferred to this terminal shine upon rear transmission, and described pilot frequency sequence generation rule and resource mapping Rule Information are sent to this terminal by Serving cell;
Demodulating unit, for utilizing described pilot frequency sequence generation rule Information Selection pilot tone, and utilizes pilot tone and the corresponding data of resource mapping rule demodulation selected.
34. terminals according to claim 33, it is characterized in that, described pilot frequency sequence generation rule and resource mapping rule comprise: one or more in the resource scheduling information of cell identity information, multi-cell synergetic transmission center frequency information, multi-cell synergetic transmission band width configuration information and the multi-cell synergetic transmission of multi-cell synergetic transmission.
35. terminals 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 any cooperative transmission community self identification information, the cell identity information relevant to cooperative transmission community self identification information, or certain cooperative transmission community self identification information.
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| CN102916732B (en) * | 2011-08-02 | 2017-10-03 | 南京中兴软件有限责任公司 | A kind of method, system and control station for realizing super cell data transfer |
| CN102547872B (en) * | 2012-01-18 | 2014-12-17 | 电信科学技术研究院 | Method and device for transmitting bandwidth information |
| 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 |
| BR112015001197B1 (en) * | 2012-07-20 | 2022-05-31 | Huawei Technologies Co., Ltd | Method, base station and user terminal for service transmission |
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| CN101373999A (en) * | 2008-08-12 | 2009-02-25 | 中兴通讯股份有限公司 | Pilot transmission method for down collaboration multi-point transmission |
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