CN102739355A - Data transmitting and data demodulating method, service evolution base station and user equipment - Google Patents
Data transmitting and data demodulating method, service evolution base station and user equipment Download PDFInfo
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
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Abstract
The invention applies to the field of communication technologies, and provides a data transmitting and data demodulating method, a service evolution base station and user equipment. The data transmitting method comprises the steps that the service evaluation base station Serving eNB adds information informing the user equipment (UE) for a cyclic prefix CP (common part) mode adopted by a data part to a control signalling; and the Serving eNB sends the control signalling to the UE. According to the data transmitting and data demodulating method, the service evolution base station and the user equipment, the UE still can demodulate right data when the CP mode adopted by the control signalling is different from that of the data part.
Description
Technical field
The invention belongs to communication technical field, relate in particular to a kind of transfer of data and data demodulation method, service evolution base station and subscriber equipment.
Background technology
See also Fig. 1, the signal structure of LTE (Long Term Evolution, Long Term Evolution) system relates to following notion.
Subframe (subframe): time span is 1 millisecond (ms), is made up of two time slots (slot).
Time slot (slot): time span is 0.5 millisecond (ms), is made up of a plurality of OFDM (Orthogonal frequency division multiplex, OFDM) symbol.
If the sub-district is in normal CP (normal Cyclic prefix, normal cyclic prefix) pattern, then a slot is made up of 7 OFDM symbols in this sub-district.
If the sub-district is in extended CP (extended Cyclic prefix, extended cyclic prefix) pattern, then a slot is made up of 6 OFDM symbols in this sub-district.
OFDM symbol: form by CP (Cyclic prefix, Cyclic Prefix) and signal section.
Can there be different CP length configurations different sub-districts; For example; In the network by a macrocell (macro cell) and a Microcell (Pico cell) formation, macrocell is because scope is bigger, and the multidiameter delay of channel has adopted extended CP pattern greatly; A Microcell by under this macrocell coverage area then adopts normal CP pattern, has avoided on CP, wasting system resource like this.
In the LTE system, a sub-frame is made up of a plurality of OFDM symbols, if the sub-district is a normal CP pattern, then a sub-frame is made up of 14 OFDM symbols, and if the sub-district is an extended CP pattern, then a sub-frame is made up of 12 OFDM symbols.Generally speaking, a sub-frame roughly is divided into controlled area and data field.With normal CP pattern is example; Preceding 1 or 3 OFDM symbol of one sub-frame is commonly used to transmitting control channel; Comprise PDCCH (Physical Downlink Control channel, physical layer descending control channel), PCFICH (Physical Control Format Indicator Channel; Physical layer control format indicating channel); PHICH (Physical Hybrid ARQ Indicator Channel, physical layer automatic re-transmission indicating channel), and remaining OFDM symbol is commonly used to transmit data.
Present LTE system can realize DPS (dynamic point selection, dynamic transmission point selection) technology, compares with traditional transmission means, and the DPS technology allows network when the transmission data, to select suitable transmission point.
In traditional transmission means, each UE (user equipment, subscriber equipment) like mobile phone, has a serving eNB (serving Evolved NodeB, service evolution base station), promptly has a base station for this UE service to be provided.Control signaling and data are transmitted to this UE by this service evolution base station.Yet under the DPS technology, a UE can have a plurality of base stations for it service to be provided, and in general, a serving eNB is arranged, and other be called cooperative eNB (cooperation evolution base station).These a plurality of cooperative eNB are called the Cooperative set (cooperation collection) of this UE.The control signaling is transmitted by serving eNB, and data division can be transmitted by any one or more cooperative eNB in the cooperative set.
For example control signaling from macro cell, and data are as shown in Figure 2 by pico cell transmission, preceding 3 symbols within such sub-frame are from macro cell, and 11 symbols in back are from pico cell.The benefit of doing like this is that network side can be selected the better eNB of transmission conditions in Cooperative set be that a UE carries out the transmission of data.
If adopt the DPS transmission for a UE, if a plurality of eNB that the cooperation of this UE is concentrated have adopted different CP length, then the DPS transmission will go wrong.For example in the prior art, UE separates timing can be defaulted as the control signaling CP length identical with The data.But in fact transfer of data is transmitted because the cause of DPS does not adopt identical CP length with the control signaling; The control signaling is according to extended CP pattern; Data are according to normal CP pattern; UE carries out data division and separates timing and still can adopt extended CP pattern to carry out demodulation so, will inevitably cause demodulation to make mistakes like this.
Summary of the invention
The embodiment of the invention provides a kind of transfer of data and data demodulation method, service evolution base station and subscriber equipment; Be intended to solve prior art and do not adopt identical CP length with the transmission of control signaling based on the transfer of data of DPS; But UE carries out data division to be separated the pattern that timing still adopts the control signaling to adopt and carries out demodulation, the problem that causes demodulation to make mistakes.
On the one hand, a kind of data transmission method is provided, said method comprises:
Service evolution base station Serving eNB adds the information of the cyclic prefix CP pattern of informing that the user equipment (UE) data division adopts in the control signaling;
Serving eNB sends said control signaling to UE.
On the other hand, a kind of data demodulation method is provided, said method comprises:
User equipment (UE) receives the control signaling that service evolution base station Serving eNB sends, and has added the information of the cyclic prefix CP pattern of informing that the UE data division adopts in the said control signaling;
The CP pattern that the control signaling specified data that UE sends through Serving eNB partly adopts; If the CP pattern that the control signaling adopts is different with the CP pattern that data division adopts, then confirm to carry out the demodulation of data division or confirm which sign-on to carry out the demodulation of data division from according to the CP pattern of control signaling employing and the CP pattern of data division employing from which sign-on according to the CP pattern of controlling the data division employing of indicating in the signaling.
Again on the one hand, a kind of collocation method of cooperation collection of user equipment (UE) is provided, said method comprises:
Service evolution base station serving eNB disposes one group of cooperation collection to UE;
Serving eNB adds the cyclic prefix CP pattern of the employing in the contiguous evolution base station eNB and the identical part or all of eNB of CP pattern of serving eNB employing the cooperation collection of said UE.
On the one hand, a kind of service evolution base station is provided again, said service evolution base station comprises:
Add module, be used for adding the information of the cyclic prefix CP pattern of informing that the user equipment (UE) data division adopts in the control signaling;
Sending module is used for sending said control signaling to UE.
On the one hand, a kind of subscriber equipment is provided again, said subscriber equipment comprises:
Receiver module is used to receive the control signaling that Serving eNB sends, and has added the information of the CP pattern of informing that the UE data division adopts in this control signaling;
CP pattern determination module is used for the CP pattern that partly adopts through the control signaling specified data that Serving eNB sends;
Demodulation module; Be used for confirming that when CP pattern determination module the CP pattern that the control signaling adopts is different with the CP pattern that data division adopts the CP pattern that then adopts according to the data division of indicating in the control signaling confirms which sign-on to carry out the CP pattern of the demodulation of data division or CP pattern that adopts according to the control signaling and data division employing is definite carries out the demodulation of data division from which sign-on from.
On the one hand, a kind of service evolution base station is provided again, said service evolution base station comprises:
Configuration module is used for disposing one group of cooperation collection to user equipment (UE);
Add module, be used for the cyclic prefix CP pattern of the employing of contiguous evolution base station eNB and the identical part or all of eNB of CP pattern of service evolution base station employing are added the cooperation collection of said UE.
On the one hand, a kind of subscriber equipment is provided again, said subscriber equipment comprises:
Judge module is used to judge service evolution base station serving eNB is whether the cyclic prefix CP pattern that adopts of evolution base station eNB that the cooperation collection of said subscriber equipment adds is identical with the CP pattern of said serving eNB employing;
The module that reports an error, be used for when said judge module judge serving eNB be the CP pattern that adopts of eNB that the cooperation collection of said subscriber equipment adds with the CP pattern of said serving eNB employing not simultaneously, report an error to serving eNB.
On the one hand, a kind of subscriber equipment is provided again, said subscriber equipment comprises:
Receiver module is used to receive the control signaling that service evolution base station Serving eNB sends, and has added the information of the cyclic prefix CP pattern of informing that the user equipment (UE) data division adopts in this control signaling;
CP pattern determination module is used for the CP pattern that partly adopts through the control signaling specified data that Serving eNB sends;
Abandon demodulation module, be used for confirming CP pattern that CP pattern that the control signaling adopts and data division adopt and not simultaneously, think that the reception signaling is wrong, no longer carry out the demodulation of data division when CP pattern determination module.
In embodiments of the present invention; Because Serving eNB adds the information of the CP pattern of informing that the UE data division adopts in the control signaling; Therefore the UE CP pattern that can partly adopt through the control signaling specified data that Serving eNB sends; If the CP pattern that the control signaling adopts is different with the CP pattern that data division adopts, then confirm to carry out the demodulation of data division or confirm which sign-on to carry out the demodulation of data division from according to the CP pattern of control signaling employing and the CP pattern of data division employing from which sign-on according to the CP pattern of controlling the data division employing of indicating in the signaling.Therefore the CP pattern of the CP pattern that adopts when the control signaling of the embodiment of the invention and data division employing makes UE still can demodulate proper data not simultaneously.
Description of drawings
Fig. 1 is the signal structure sketch map of the LTE system of prior art;
Fig. 2 is the signal structure sketch map of prior art based on DPS;
Fig. 3 is the transfer of data that provides of the embodiment of the invention and the flow chart of data demodulation method;
Fig. 4 is the collocation method of the cooperation collection of the UE that provides of the embodiment of the invention;
Fig. 5 is the functional block diagram of the Serving eNB that provides of first embodiment of the invention;
Fig. 6 is the functional block diagram of the UE that provides of first embodiment of the invention;
Fig. 7 is the functional block diagram of the Serving eNB that provides of second embodiment of the invention;
Fig. 8 is the functional block diagram of the UE that provides of second embodiment of the invention;
Fig. 9 is the functional block diagram of the UE that provides of third embodiment of the invention.
Embodiment
In order to make the object of the invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Seeing also Fig. 3, is the transfer of data that provides of the embodiment of the invention and the flow chart of data demodulates, and this method can be applicable to also can be applicable to other scenes based on the transfer of data of DPS and data demodulates, and this method comprises:
S101, Serving eNB add the information of the CP pattern of informing that the UE data division adopts in the control signaling;
In embodiments of the present invention, Serving eNB can also add notice UE and which sign-on to carry out the demodulated information of data division from the control signaling, and said control signaling is high-level signaling or descending control signaling DCI.
In embodiments of the present invention, this control signaling is that descending control signaling (Downlink Control Information, DCI), transmit in PDCCH by this control signaling.
As one embodiment of the present of invention, Serving eNB carries the information of the CP pattern of data division employing in the PDCCH of the control signaling that UE issues in transmission.The information of the CP pattern that this data division adopts is the information of 1bit, has adopted normal CP pattern if this information is made as ' 0 ' expression data division, has adopted extended CP pattern if be made as ' 1 ' expression data division.Certainly, also can for, if this information be made as ' 1 ' expression data division adopted normal CP pattern, if be made as ' 0 ' expression data division adopted extended CP pattern.
As an alternative embodiment of the invention; Serving eNB informs the numbering of the eNB in its cooperation collection of UE and the CP pattern that the corresponding eNB of each numbering adopts through high-level signaling in advance; When Serving eNB sends control signaling to UE; In the control signaling, carry the eNB numbering, notice UE is that which eNB sends data to it.Because UE has known the CP pattern that the corresponding eNB of each numbering adopts, then UE has also just known the CP pattern that data division adopts indirectly.
S102, Serving eNB send to UE should control signaling;
S103, UE receive the control signaling that Serving eNB sends, and have added the information of the CP pattern of informing that the UE data division adopts in this control signaling;
The CP pattern that the control signaling specified data that S104, UE send through Serving eNB partly adopts; If the CP pattern that the control signaling adopts is different with the CP pattern that data division adopts, then confirm to carry out the demodulation of data division or confirm which sign-on to carry out the demodulation of data division from according to the CP pattern of control signaling employing and the CP pattern of data division employing from which sign-on according to the CP pattern of controlling the data division employing of indicating in the signaling.
In embodiments of the present invention, added notice UE in the signaling when which sign-on carries out the demodulated information of data division when control, step S104 also comprises:
If the CP pattern that the control signaling adopts is different with the CP pattern that data division adopts, then confirm which sign-on to carry out the demodulation of data division from the demodulated information which sign-on carries out data division from according to the notice UE in the control signaling.
In embodiments of the present invention; If what the control signaling adopted is extended CP pattern, be normal CP pattern and data division adopts, if the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+2 OFDM sign-on, said n is a natural number.
Under different channel conditions, different e NB sends downstream signal, and the time that arrives UE maybe be asynchronous, also possibly carry out data demodulates according to following mode:
The Serving eNB that for example sends control signaling is asynchronous in time with the eNB that sends data division; And since the Serving eNB that sends control signaling to the distance of UE greater than the distance of the eNB that sends data division to UE, cause data division signal backwardness control signal more for a long time.
If that the control signaling adopts is extended cyclic prefix pattern extended CP; And that the data division employing is normal cyclic prefix pattern normal CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+1 OFDM sign-on, said n is a natural number.
The Serving eNB that perhaps for example sends control signaling is asynchronous in time with the eNB that sends data division; And since the Serving eNB that sends control signaling to the distance of UE less than the distance of the eNB that sends data division to UE, cause data division signal backwardness control signal more after a little while.
If that the control signaling adopts is extended cyclic prefix pattern extended CP; And that the data division employing is normal cyclic prefix pattern normal CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+3 OFDM sign-on, said n is a natural number.
If what the control signaling adopted is normal CP pattern, be extended CP pattern and data division adopts, if the control signaling has taken 0-n OFDM symbol, then carry out the demodulation of data division from n+1 OFDM sign-on, said n is a natural number.
Under different channel conditions, different e NB sends downstream signal, and the time that arrives UE maybe be asynchronous, also possibly carry out data demodulates according to following mode:
The Serving eNB that for example sends control signaling is asynchronous in time with the eNB that sends data division; And since the Serving eNB that sends control signaling to the distance of UE greater than the distance of the eNB that sends data division to UE, cause data division signal backwardness control signal more for a long time.
If that the control signaling adopts is normal cyclic prefix pattern normal CP; And that the data division employing is extended cyclic prefix pattern extended CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n OFDM sign-on, said n is a natural number.
The Serving eNB that perhaps for example sends control signaling is asynchronous in time with the eNB that sends data division; And since the Serving eNB that sends control signaling to the distance of UE less than the distance of the eNB that sends data division to UE, cause data division signal backwardness control signal more after a little while.
If that the control signaling adopts is normal cyclic prefix pattern normal CP; And that the data division employing is extended cyclic prefix pattern extended CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+2 OFDM sign-on, said n is a natural number.
Seeing also Fig. 4, is the flow chart of collocation method of the cooperation collection of the UE that provides of the embodiment of the invention, and this method can be applicable to the configuration based on the cooperation collection of the UE of DPS, also can be applicable to other scenes, and this method comprises:
S201, serving eNB dispose one group of cooperation collection to UE;
S202, serving eNB add the CP pattern of the employing among the contiguous eNB and the identical part or all of eNB of CP pattern of serving eNB employing the cooperation collection of said UE.
In the collocation method of the cooperation collection of the UE that the embodiment of the invention provides, this method can also comprise:
UE judges whether the CP pattern that eNB that cooperation collection that said serving eNB is said UE adds adopts is identical with the CP pattern that said serving eNB adopts, if difference, then UE reports an error to serving eNB; Or
UE receives the control signaling that Serving eNB sends, and has added the information of the CP pattern of informing that the UE data division adopts in the said control signaling;
The CP pattern that the control signaling specified data that UE sends through Serving eNB partly adopts, if the CP pattern that the control signaling adopts is different with the CP pattern that data division adopts, then UE thinks that the reception signaling is wrong, no longer carries out the demodulation of data division.
See also Fig. 5, the Serving eNB that first embodiment of the invention provides comprises interpolation module 11 and sending module 12.Wherein,
Add module 11, be used for adding the information of the CP pattern of informing that the UE data division adopts in the control signaling; In embodiments of the present invention, this control signaling is that descending control signaling (Downlink Control Information, DCI), transmit in PDCCH by this control signaling.
Sending module 12 is used for sending this control signaling to UE.
As one embodiment of the present of invention, add the information that module specifically is used for carrying at the PDCCH that transmits the control signaling that issues to UE the CP pattern of data division employing.The information of the CP pattern that this data division adopts is the information of 1bit, has adopted normal CP pattern if this information is made as ' 0 ' expression data division, has adopted extended CP pattern if be made as ' 1 ' expression data division.Certainly, also can for, if this information be made as ' 1 ' expression data division adopted normal CP pattern, if be made as ' 0 ' expression data division adopted extended CP pattern.
As an alternative embodiment of the invention, Serving eNB comprises that also advance notice knows module, is used for informing the numbering of the eNB in its cooperation collection of UE and the CP pattern that the corresponding eNB of each numbering adopts through high-level signaling in advance; At this moment, add module when specifically being used for sending control signaling to UE, in the control signaling, carry the eNB numbering, notice UE is that which eNB sends data to it.Because UE has known the CP pattern that the corresponding eNB of each numbering adopts, then UE has also just known the CP pattern that data division adopts indirectly.
See also Fig. 6, the UE that first embodiment of the invention provides comprises receiver module 21, CP pattern determination module 22 and demodulation module 23.Wherein,
CP pattern determination module 22 is used for the CP pattern that partly adopts through the control signaling specified data that Serving eNB sends;
In embodiments of the present invention; When control has been added notice UE in the signaling when which sign-on carries out the demodulated information of data division; Said demodulation module also is used for confirming that when CP pattern determination module the CP pattern of control signaling employing is different with the CP pattern that data division adopts, then confirms which sign-on to carry out the demodulation of data division from according to the notice UE in the control signaling from the demodulated information which sign-on carries out data division.
In embodiments of the present invention; If what the control signaling adopted is extended CP pattern, be normal CP pattern and data division adopts, if the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+2 OFDM sign-on, said n is a natural number.
Under different channel conditions, different e NB sends downstream signal, and the time that arrives UE maybe be asynchronous, also possibly carry out data demodulates according to following mode:
The Serving eNB that for example sends control signaling is asynchronous in time with the eNB that sends data division; And since the Serving eNB that sends control signaling to the distance of UE greater than the distance of the eNB that sends data division to UE, cause data division signal backwardness control signal more for a long time.
If that the control signaling adopts is extended cyclic prefix pattern extended CP; And that the data division employing is normal cyclic prefix pattern normal CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+1 OFDM sign-on, said n is a natural number.
The Serving eNB that perhaps for example sends control signaling is asynchronous in time with the eNB that sends data division; And since the Serving eNB that sends control signaling to the distance of UE less than the distance of the eNB that sends data division to UE, cause data division signal backwardness control signal more after a little while.
If that the control signaling adopts is extended cyclic prefix pattern extended CP; And that the data division employing is normal cyclic prefix pattern normal CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+3 OFDM sign-on, said n is a natural number.
If what the control signaling adopted is normal CP pattern, be extended CP pattern and data division adopts, if the control signaling has taken 0-n OFDM symbol, then carry out the demodulation of data division from n+1 OFDM sign-on, said n is a natural number.
Under different channel conditions, different e NB sends downstream signal, and the time that arrives UE maybe be asynchronous, also possibly carry out data demodulates according to following mode:
The Serving eNB that for example sends control signaling is asynchronous in time with the eNB that sends data division; And since the Serving eNB that sends control signaling to the distance of UE greater than the distance of the eNB that sends data division to UE, cause data division signal backwardness control signal more for a long time.
If that the control signaling adopts is normal cyclic prefix pattern normal CP; And that the data division employing is extended cyclic prefix pattern extended CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n OFDM sign-on, said n is a natural number.
The Serving eNB that perhaps for example sends control signaling is asynchronous in time with the eNB that sends data division; And since the Serving eNB that sends control signaling to the distance of UE less than the distance of the eNB that sends data division to UE, cause data division signal backwardness control signal more after a little while.
If that the control signaling adopts is normal cyclic prefix pattern normal CP; And that the data division employing is extended cyclic prefix pattern extended CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+2 OFDM sign-on, said n is a natural number.
See also Fig. 7, the Serving eNB that second embodiment of the invention provides comprises configuration module 31 and adding module 32, wherein,
Add module 32, be used for the cyclic prefix CP pattern of the employing of contiguous evolution base station eNB and the identical part or all of eNB of CP pattern of service evolution base station employing are added the cooperation collection of said UE.
See also Fig. 8, the subscriber equipment that second embodiment of the invention provides comprises the judge module 41 and the module 42 that reports an error, wherein,
Judge module is used to judge service evolution base station serving eNB is whether the cyclic prefix CP pattern that adopts of evolution base station eNB that the cooperation collection of said subscriber equipment adds is identical with the CP pattern of said serving eNB employing;
The module that reports an error, be used for when said judge module judge serving eNB be the CP pattern that adopts of eNB that the cooperation collection of said subscriber equipment adds with the CP pattern of said serving eNB employing not simultaneously, report an error to serving eNB.
See also Fig. 9, the subscriber equipment that third embodiment of the invention provides comprises receiver module 51, CP pattern determination module 52 and abandons demodulation module 53, wherein,
Receiver module is used to receive the control signaling that service evolution base station Serving eNB sends, and has added the information of the cyclic prefix CP pattern of informing that the user equipment (UE) data division adopts in this control signaling;
CP pattern determination module is used for the CP pattern that partly adopts through the control signaling specified data that Serving eNB sends;
Abandon demodulation module, be used for confirming CP pattern that CP pattern that the control signaling adopts and data division adopt and not simultaneously, think that the reception signaling is wrong, no longer carry out the demodulation of data division when CP pattern determination module.
In embodiments of the present invention; Because Serving eNB adds the information of the CP pattern of informing that the UE data division adopts in the control signaling; Therefore the UE CP pattern that can partly adopt through the control signaling specified data that Serving eNB sends; If the CP pattern that the control signaling adopts is different with the CP pattern that data division adopts, then confirm to carry out the demodulation of data division or confirm which sign-on to carry out the demodulation of data division from according to the CP pattern of control signaling employing and the CP pattern of data division employing from which sign-on according to the CP pattern of controlling the data division employing of indicating in the signaling.Therefore the CP pattern of the CP pattern that adopts when the control signaling of the embodiment of the invention and data division employing makes UE still can demodulate proper data not simultaneously.
One of ordinary skill in the art will appreciate that; Realize that all or part of step in the foregoing description method is to instruct relevant hardware to accomplish through program; Described program can be in being stored in a computer read/write memory medium; Described storage medium is like ROM/RAM, disk, CD etc.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (34)
1. a data transmission method is characterized in that, said method comprises:
Service evolution base station Serving eNB adds the information of the cyclic prefix CP pattern of informing that the user equipment (UE) data division adopts in the control signaling;
Serving eNB sends said control signaling to UE.
2. the method for claim 1 is characterized in that, said control signaling is descending control signaling DCI, and said control signaling is transmitted in physical layer descending control channel PDCCH.
3. method as claimed in claim 2; It is characterized in that said service evolution base station Serving eNB adds the cyclic prefix CP pattern of informing that the user equipment (UE) data division adopts in the control signaling information specifically comprises: Serving eNB carries the information of the CP pattern of data division employing in the PDCCH of the control signaling that UE issues in transmission.
4. method as claimed in claim 3 is characterized in that, the information of the CP pattern that said data division adopts is specially:
The information of the CP pattern that said data division adopts is the information of 1bit; If said information is made as 0 expression data division and has adopted normal cyclic prefix pattern normal CP, adopted extended cyclic prefix pattern extended CP if be made as 1 expression data division; Perhaps, adopted normal CP pattern, adopted extended CP pattern if be made as 0 expression data division if information is made as 1 expression data division.
5. the method for claim 1 is characterized in that, said service evolution base station Serving eNB adds the cyclic prefix CP pattern of informing that the user equipment (UE) data division adopts in the control signaling information specifically comprises:
Serving eNB informs the numbering of the eNB in its cooperation collection of UE and the CP pattern that the corresponding eNB of each numbering adopts through high-level signaling in advance; When Serving eNB sends control signaling to UE; In the control signaling, carry the eNB numbering, notice UE is that which eNB sends data to it.
6. the method for claim 1 is characterized in that, said method also comprises:
Serving eNB adds notice UE and which sign-on to carry out the demodulated information of data division from the control signaling, said control signaling is high-level signaling or descending control signaling DCI.
7. a data demodulation method is characterized in that, said method comprises:
User equipment (UE) receives the control signaling that service evolution base station Serving eNB sends, and has added the information of the cyclic prefix CP pattern of informing that the UE data division adopts in the said control signaling;
The CP pattern that the control signaling specified data that UE sends through Serving eNB partly adopts; If the CP pattern that the control signaling adopts is different with the CP pattern that data division adopts, then confirm to carry out the demodulation of data division or confirm which sign-on to carry out the demodulation of data division from according to the CP pattern of control signaling employing and the CP pattern of data division employing from which sign-on according to the CP pattern of controlling the data division employing of indicating in the signaling.
8. method as claimed in claim 7 is characterized in that, the said CP pattern that adopts according to the CP pattern and the data division of the employing of control signaling confirms that the demodulation which sign-on to carry out data division from is specially:
If that the control signaling adopts is extended cyclic prefix pattern extended CP; And that the data division employing is normal cyclic prefix pattern normal CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+2 OFDM sign-on, said n is a natural number.
9. method as claimed in claim 7 is characterized in that, the said CP pattern that adopts according to the CP pattern and the data division of the employing of control signaling confirms that the demodulation which sign-on to carry out data division from is specially:
If that the control signaling adopts is extended cyclic prefix pattern extended CP; And that the data division employing is normal cyclic prefix pattern normal CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+1 OFDM sign-on, said n is a natural number.
10. method as claimed in claim 7 is characterized in that, the said CP pattern that adopts according to the CP pattern and the data division of the employing of control signaling confirms that the demodulation which sign-on to carry out data division from is specially:
If that the control signaling adopts is extended cyclic prefix pattern extended CP; And that the data division employing is normal cyclic prefix pattern normal CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+3 OFDM sign-on, said n is a natural number.
11. method as claimed in claim 7 is characterized in that, the said CP pattern that adopts according to the CP pattern and the data division of the employing of control signaling confirms that the demodulation which sign-on to carry out data division from is specially:
If that the control signaling adopts is normal cyclic prefix pattern normal CP; And that the data division employing is extended cyclic prefix pattern extended CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+1 OFDM sign-on, said n is a natural number.
12. method as claimed in claim 7 is characterized in that, the said CP pattern that adopts according to the CP pattern and the data division of the employing of control signaling confirms that the demodulation which sign-on to carry out data division from is specially:
If that the control signaling adopts is normal cyclic prefix pattern normal CP; And that the data division employing is extended cyclic prefix pattern extended CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n OFDM sign-on, said n is a natural number.
13. method as claimed in claim 7 is characterized in that, the said CP pattern that adopts according to the CP pattern and the data division of the employing of control signaling confirms that the demodulation which sign-on to carry out data division from is specially:
If that the control signaling adopts is normal cyclic prefix pattern normal CP; And that the data division employing is extended cyclic prefix pattern extended CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+2 OFDM sign-on, said n is a natural number.
14. method as claimed in claim 7 is characterized in that, has also added notice UE in the said control signaling and which sign-on to have carried out the demodulated information of data division from, said control signaling is high-level signaling or descending control signaling DCI;
Said method also comprises:
If the CP pattern that the control signaling adopts is different with the CP pattern that data division adopts, then confirm which sign-on to carry out the demodulation of data division from the demodulated information which sign-on carries out data division from according to the notice UE in the control signaling.
15. the collocation method of the cooperation collection of a user equipment (UE) is characterized in that, said method comprises:
Service evolution base station serving eNB disposes one group of cooperation collection to UE;
Serving eNB adds the cyclic prefix CP pattern of the employing in the contiguous evolution base station eNB and the identical part or all of eNB of CP pattern of servingeNB employing the cooperation collection of said UE.
16. method as claimed in claim 15 is characterized in that, said method also comprises:
UE judges whether the CP pattern that eNB that cooperation collection that said serving eNB is said UE adds adopts is identical with the CP pattern that said serving eNB adopts, if difference, then UE reports an error to serving eNB.
17. method as claimed in claim 15 is characterized in that, said method also comprises:
UE receives the control signaling that Serving eNB sends, and has added the information of the CP pattern of informing that the UE data division adopts in the said control signaling;
The CP pattern that the control signaling specified data that UE sends through Serving eNB partly adopts, if the CP pattern that the control signaling adopts is different with the CP pattern that data division adopts, then UE thinks that the reception signaling is wrong, no longer carries out the demodulation of data division.
18. a service evolution base station is characterized in that said service evolution base station comprises:
Add module, be used for adding the information of the cyclic prefix CP pattern of informing that the user equipment (UE) data division adopts in the control signaling;
Sending module is used for sending said control signaling to UE.
19. service evolution base station as claimed in claim 18 is characterized in that, said control signaling is descending control signaling DCI, and said control signaling is transmitted in physical layer descending control channel PDCCH.
20. service evolution base station as claimed in claim 19 is characterized in that, said interpolation module specifically is used for carrying at the PDCCH that transmits the control signaling that issues to UE the information of the CP pattern of data division employing.
21. method as claimed in claim 20 is characterized in that, the information of the CP pattern that said data division adopts is specially:
The information of the CP pattern that said data division adopts is the information of 1bit; If said information is made as 0 expression data division and has adopted normal cyclic prefix pattern normal CP, adopted extended cyclic prefix pattern extended CP if be made as 1 expression data division; Perhaps, adopted normal CP pattern, adopted extended CP pattern if be made as 0 expression data division if information is made as 1 expression data division.
22. service evolution base station as claimed in claim 18 is characterized in that, said service evolution base station also comprises:
Module is known in advance notice; Be used for informing the numbering of the eNB in its cooperation collection of UE and the CP pattern that the corresponding eNB of each numbering adopts through high-level signaling in advance; When Serving eNB sends control signaling to UE, in the control signaling, carry the eNB numbering, notice UE is that which eNB sends data to it.
23. service evolution base station as claimed in claim 18; It is characterized in that; Said interpolation module also is used for adding notice UE in the control signaling and which sign-on carries out the demodulated information of data division from, and said control signaling is high-level signaling or descending control signaling DCI.
24. a subscriber equipment is characterized in that, said subscriber equipment comprises:
Receiver module is used to receive the control signaling that Serving eNB sends, and has added the information of the CP pattern of informing that the UE data division adopts in this control signaling;
CP pattern determination module is used for the CP pattern that partly adopts through the control signaling specified data that Serving eNB sends;
Demodulation module; Be used for confirming that when CP pattern determination module the CP pattern that the control signaling adopts is different with the CP pattern that data division adopts the CP pattern that then adopts according to the data division of indicating in the control signaling confirms which sign-on to carry out the CP pattern of the demodulation of data division or CP pattern that adopts according to the control signaling and data division employing is definite carries out the demodulation of data division from which sign-on from.
25. subscriber equipment as claimed in claim 24 is characterized in that, the said CP pattern that adopts according to the CP pattern and the data division of the employing of control signaling confirms that the demodulation which sign-on to carry out data division from is specially:
If that the control signaling adopts is extended cyclic prefix pattern extended CP; And that the data division employing is normal cyclic prefix pattern normal CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+2 OFDM sign-on, said n is a natural number.
26. subscriber equipment as claimed in claim 24 is characterized in that, the said CP pattern that adopts according to the CP pattern and the data division of the employing of control signaling confirms that the demodulation which sign-on to carry out data division from is specially:
If that the control signaling adopts is extended cyclic prefix pattern extended CP; And that the data division employing is normal cyclic prefix pattern normal CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+1 OFDM sign-on, said n is a natural number.
27. subscriber equipment as claimed in claim 24 is characterized in that, the said CP pattern that adopts according to the CP pattern and the data division of the employing of control signaling confirms that the demodulation which sign-on to carry out data division from is specially:
If that the control signaling adopts is extended cyclic prefix pattern extended CP; And that the data division employing is normal cyclic prefix pattern normal CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+3 OFDM sign-on, said n is a natural number.
28. subscriber equipment as claimed in claim 24 is characterized in that, the said CP pattern that adopts according to the CP pattern and the data division of the employing of control signaling confirms that the demodulation which sign-on to carry out data division from is specially:
If that the control signaling adopts is normal cyclic prefix pattern normal CP; And that the data division employing is extended cyclic prefix pattern extended CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+1 OFDM sign-on, said n is a natural number.
29. subscriber equipment as claimed in claim 24 is characterized in that, the said CP pattern that adopts according to the CP pattern and the data division of the employing of control signaling confirms that the demodulation which sign-on to carry out data division from is specially:
If that the control signaling adopts is normal cyclic prefix pattern normal CP; And that the data division employing is extended cyclic prefix pattern extended CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n OFDM sign-on, said n is a natural number.
30. subscriber equipment as claimed in claim 24 is characterized in that, the said CP pattern that adopts according to the CP pattern and the data division of the employing of control signaling confirms that the demodulation which sign-on to carry out data division from is specially:
If that the control signaling adopts is normal cyclic prefix pattern normal CP; And that the data division employing is extended cyclic prefix pattern extended CP; If the control signaling has taken 0-n OFDM symbol; Then carry out the demodulation of data division from n+2 OFDM sign-on, said n is a natural number.
31. subscriber equipment as claimed in claim 24 is characterized in that, has also added notice UE in the said control signaling and which sign-on to have carried out the demodulated information of data division from, said control signaling is high-level signaling or descending control signaling DCI;
Said demodulation module also is used for confirming that when CP pattern determination module the CP pattern of control signaling employing is different with the CP pattern that data division adopts, then confirms which sign-on to carry out the demodulation of data division from according to the notice UE in the control signaling from the demodulated information which sign-on carries out data division.
32. a service evolution base station is characterized in that said service evolution base station comprises:
Configuration module is used for disposing one group of cooperation collection to user equipment (UE);
Add module, be used for the cyclic prefix CP pattern of the employing of contiguous evolution base station eNB and the identical part or all of eNB of CP pattern of service evolution base station employing are added the cooperation collection of said UE.
33. a subscriber equipment is characterized in that, said subscriber equipment comprises:
Judge module is used to judge service evolution base station serving eNB is whether the cyclic prefix CP pattern that adopts of evolution base station eNB that the cooperation collection of said subscriber equipment adds is identical with the CP pattern of said serving eNB employing;
The module that reports an error, be used for when said judge module judge serving eNB be the CP pattern that adopts of eNB that the cooperation collection of said subscriber equipment adds with the CP pattern of said serving eNB employing not simultaneously, report an error to servingeNB.
34. a subscriber equipment is characterized in that, said subscriber equipment comprises:
Receiver module is used to receive the control signaling that service evolution base station Serving eNB sends, and has added the information of the cyclic prefix CP pattern of informing that the user equipment (UE) data division adopts in this control signaling;
CP pattern determination module is used for the CP pattern that partly adopts through the control signaling specified data that Serving eNB sends;
Abandon demodulation module, be used for confirming CP pattern that CP pattern that the control signaling adopts and data division adopt and not simultaneously, think that the reception signaling is wrong, no longer carry out the demodulation of data division when CP pattern determination module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210140117.0A CN102739355B (en) | 2012-05-04 | 2012-05-04 | Transfer of data and data demodulation method, service evolution base station and subscriber equipment |
| PCT/CN2013/070231 WO2013163896A1 (en) | 2012-05-04 | 2013-01-08 | Data transmitting and data demodulating method, service evolution base station and user equipment |
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| CN201210140117.0A CN102739355B (en) | 2012-05-04 | 2012-05-04 | Transfer of data and data demodulation method, service evolution base station and subscriber equipment |
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| CN102739355B CN102739355B (en) | 2016-03-30 |
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|---|---|---|---|---|
| WO2013163896A1 (en) * | 2012-05-04 | 2013-11-07 | 华为技术有限公司 | Data transmitting and data demodulating method, service evolution base station and user equipment |
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| CN1992955A (en) * | 2005-11-30 | 2007-07-04 | 株式会社日立制作所 | Measurement system, management device and processing distribution method using the same |
| CN102077534A (en) * | 2008-04-25 | 2011-05-25 | 诺基亚西门子通信公司 | Apparatus, methods, and computer program products providing an indication of cyclic prefix length |
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| US8089855B2 (en) * | 2004-06-04 | 2012-01-03 | Qualcomm Incorporated | Transmission of overhead information for broadcast and multicast services in a wireless communication system |
| CN101882979B (en) * | 2009-05-05 | 2014-04-30 | 中兴通讯股份有限公司 | Method and system for realizing cooperation among users |
| CN102196504A (en) * | 2010-03-12 | 2011-09-21 | 株式会社Ntt都科摩 | Cooperative set configuration method and device |
| CN102739355B (en) * | 2012-05-04 | 2016-03-30 | 华为技术有限公司 | Transfer of data and data demodulation method, service evolution base station and subscriber equipment |
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2012
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| CN1992955A (en) * | 2005-11-30 | 2007-07-04 | 株式会社日立制作所 | Measurement system, management device and processing distribution method using the same |
| CN102077534A (en) * | 2008-04-25 | 2011-05-25 | 诺基亚西门子通信公司 | Apparatus, methods, and computer program products providing an indication of cyclic prefix length |
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| WO2013163896A1 (en) * | 2012-05-04 | 2013-11-07 | 华为技术有限公司 | Data transmitting and data demodulating method, service evolution base station and user equipment |
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| CN102739355B (en) | 2016-03-30 |
| WO2013163896A1 (en) | 2013-11-07 |
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