CN102739355B - Transfer of data and data demodulation method, service evolution base station and subscriber equipment - Google Patents
Transfer of data and data demodulation method, service evolution base station and subscriber equipment Download PDFInfo
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Abstract
The present invention is applicable to communication technical field, provides a kind of transfer of data and data demodulation method, service evolution base station and subscriber equipment.Does described data transmission method comprise: service evolution base station Serving? eNB adds the information of informing the cyclic prefix CP pattern that user equipment (UE) data division adopts in control signal; Serving? eNB sends described control signal to UE.The embodiment of the present invention, when the CP pattern that control signal adopts is different from the CP pattern that data division adopts, makes UE still can demodulate correct data.
Description
Technical field
The invention belongs to communication technical field, particularly relate to a kind of transfer of data and data demodulation method, service evolution base station and subscriber equipment.
Background technology
Refer to Fig. 1, the signal structure of LTE (LongTermEvolution, Long Term Evolution) system relates to following concept.
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 multiple OFDM (Orthogonalfrequencydivisionmultiplex, OFDM) symbol.
If community is in normalCP (normalCyclicprefix, normal cyclic prefix) pattern, in Ze Gai community, a slot is made up of 7 OFDM symbol.
If community is in extendedCP (extendedCyclicprefix, extended cyclic prefix) pattern, in Ze Gai community, a slot is made up of 6 OFDM symbol.
OFDM symbol: be made up of CP (Cyclicprefix, Cyclic Prefix) and signal section.
Can there be different CP length configurations different communities, such as, in the network be made up of a macrocell (macrocell) and a Microcell (Picocell), macrocell due to scope larger, the multidiameter delay of channel is large and have employed extendedCP pattern, then adopt normalCP pattern by the Microcell of under this macrocell coverage area, this avoid and waste system resource on CP.
In LTE system, a subframe is made up of multiple OFDM symbol, if community is normalCP pattern, then a subframe is made up of 14 OFDM symbol, and if community is extendedCP pattern, then a subframe is made up of 12 OFDM symbol.Generally speaking, a subframe is roughly divided into controlled area and data field.For normalCP pattern, front 1 or 3 OFDM symbol of a subframe is commonly used to transmitting control channel, comprise PDCCH (PhysicalDownlinkControlchannel, physical layer descending control channel), PCFICH (PhysicalControlFormatIndicatorChannel, physical layer control format indicating channel), PHICH (PhysicalHybridARQIndicatorChannel, physical layer automatic re-transmission indicating channel), and the OFDM symbol of remainder is commonly used to transmit data.
Current LTE system can realize DPS (dynamicpointselection, dynamic transmission point selection) technology, and compared with traditional transmission means, DPS technology allows network to select suitable transfer point when transmitting data.
In traditional transmission means, each UE (userequipment, subscriber equipment), as mobile phone, has a servingeNB (servingEvolvedNodeB, service evolution base station), namely has a base station to provide service for this UE.Control signal and data are transmitted to this UE by this service evolution base station.But under DPS technology, a UE can have multiple base station to provide service for it, in general, has a servingeNB, and other be called cooperativeeNB (cooperation evolution base station).This multiple cooperativeeNB is called the Cooperativeset (collaboration set) of this UE.Control signal transmits by servingeNB, and data division can be transmitted by any one or more cooperativeeNB in cooperativeset.
Such as control signal is from macrocell, and data are transmitted by picocell, as shown in Figure 2, front 3 symbols within such subframe from macrocell, and below 11 symbols from picocell.The benefit done like this is, network side can select the better eNB of transmission conditions to be the transmission that a UE carries out data in Cooperativeset.
If adopt DPS transmission for a UE, if the multiple eNB in the collaboration set of this UE have employed different CP length, then DPS transmission will go wrong.Such as, in prior art, control signal and the identical CP length of data acquisition during UE demodulation, can be defaulted as.But in fact transfer of data and control signal transmit because DPS does not adopt identical CP length, control signal is according to extendedCP pattern, data are according to normalCP pattern, still extendedCP pattern can be adopted to carry out demodulation when so UE carries out data division demodulation, will inevitably cause demodulation to make mistakes like this.
Summary of the invention
Embodiments provide a kind of transfer of data and data demodulation method, service evolution base station and subscriber equipment, be intended to solve prior art to transmit with control signal based on the transfer of data of DPS and do not adopt identical CP length, but the pattern that UE still adopts control signal to adopt when carrying out data division demodulation, to carry out demodulation, causes the problem that demodulation makes mistakes.
On the one hand, provide a kind of data transmission method, described method comprises:
Service evolution base station ServingeNB adds the information of informing the cyclic prefix CP pattern that user equipment (UE) data division adopts in control signal;
ServingeNB sends described control signal to UE.
On the other hand, provide a kind of data demodulation method, described method comprises:
User equipment (UE) receives the control signal that service evolution base station ServingeNB sends, and with the addition of the information of informing the cyclic prefix CP pattern that UE data division adopts in described control signal;
The CP pattern that the control signal determination data division that UE is sent by ServingeNB adopts, if the CP pattern that control signal adopts is different from the CP pattern that data division adopts, then the CP pattern adopted according to the data division indicated in control signal is determined which sign-on to carry out the demodulation of data division from or determine from which sign-on to carry out the demodulation of data division according to the CP pattern that CP pattern and the data division of control signal employing adopt.
Again on the one hand, provide a kind of collocation method of collaboration set of user equipment (UE), described method comprises:
Service evolution base station servingeNB configures one group of collaboration set to UE;
Part or all of eNB identical with the CP pattern that servingeNB adopts for the cyclic prefix CP pattern of the employing in contiguous evolution base station eNB is added the collaboration set of described UE by servingeNB.
Again on the one hand, provide a kind of service evolution base station, described service evolution base station comprises:
Add module, for adding the information of informing the cyclic prefix CP pattern that user equipment (UE) data division adopts in control signal;
Sending module, for sending described control signal to UE.
Again on the one hand, provide a kind of subscriber equipment, described subscriber equipment comprises:
Receiver module, for receiving the control signal that ServingeNB sends, with the addition of the information of informing the CP pattern that UE data division adopts in this control signal;
CP mode decision module, the CP pattern that the control signal determination data division for being sent by ServingeNB is adopted;
Demodulation module, CP pattern for adopting when CP mode decision module determination control signal is different from the CP pattern that data division adopts, then the CP pattern adopted according to the data division indicated in control signal is determined which sign-on to carry out the demodulation of data division from or determine from which sign-on to carry out the demodulation of data division according to the CP pattern that CP pattern and the data division of control signal employing adopt.
Again on the one hand, provide a kind of service evolution base station, described service evolution base station comprises:
Configuration module, for configuring one group of collaboration set to user equipment (UE);
Add module, for part or all of eNB identical with the CP pattern that service evolution base station adopts for the cyclic prefix CP pattern of the employing in contiguous evolution base station eNB being added the collaboration set of described UE.
Again on the one hand, provide a kind of subscriber equipment, described subscriber equipment comprises:
Judge module, for judging that service evolution base station servingeNB is whether the cyclic prefix CP pattern that evolution base station eNB that the collaboration set of described subscriber equipment adds adopts is identical with the CP pattern that described servingeNB adopts;
Report an error module, for judge when described judge module servingeNB be CP pattern that eNB that the collaboration set of described subscriber equipment adds adopts different from the CP pattern that described servingeNB adopts time, report an error to servingeNB.
Again on the one hand, provide a kind of subscriber equipment, described subscriber equipment comprises:
Receiver module, for receiving the control signal that service evolution base station ServingeNB sends, with the addition of the information of informing the cyclic prefix CP pattern that user equipment (UE) data division adopts in this control signal;
CP mode decision module, the CP pattern that the control signal determination data division for being sent by ServingeNB is adopted;
Abandon demodulation module, for when the CP pattern that CP mode decision module determination control signal adopts is different from the CP pattern that data division adopts, thinks that reception signaling is wrong, no longer carry out the demodulation of data division.
In embodiments of the present invention, because ServingeNB adds the information of informing the CP pattern that UE data division adopts in control signal, therefore the CP pattern that the control signal determination data division that UE can be sent by ServingeNB adopts, if the CP pattern that control signal adopts is different from the CP pattern that data division adopts, the CP pattern then adopted according to the data division indicated in control signal is determined which sign-on to carry out the demodulation of data division from or determine from which sign-on to carry out the demodulation of data division according to the CP pattern that CP pattern and the data division of control signal employing adopt.Therefore the embodiment of the present invention is when the CP pattern that control signal adopts is different from the CP pattern that data division adopts, and makes UE still can demodulate correct data.
Accompanying drawing explanation
Fig. 1 is the signal structure schematic diagram of the LTE system of prior art;
Fig. 2 is the signal structure schematic diagram of prior art based on DPS;
Fig. 3 is the flow chart of the transfer of data that provides of the embodiment of the present invention and data demodulation method;
Fig. 4 is the collocation method of the collaboration set of the UE that the embodiment of the present invention provides;
Fig. 5 is the functional block diagram of the ServingeNB that first embodiment of the invention provides;
Fig. 6 is the functional block diagram of the UE that first embodiment of the invention provides;
Fig. 7 is the functional block diagram of the ServingeNB that second embodiment of the invention provides;
Fig. 8 is the functional block diagram of the UE that second embodiment of the invention provides;
Fig. 9 is the functional block diagram of the UE that third embodiment of the invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Referring to Fig. 3, is the flow chart of the transfer of data that provides of the embodiment of the present invention and data demodulates, and the method can be applicable to transfer of data based on DPS and data demodulates, and also can be applicable to other scenes, the method comprises:
S101, ServingeNB add the information of informing the CP pattern that UE data division adopts in control signal;
In embodiments of the present invention, ServingeNB can also add the information that notice UE carries out the demodulation of data division from which sign-on in control signal, and described control signal is high-level signaling or descending control signaling DCI.
In embodiments of the present invention, this control signal is descending control signaling (DownlinkControlInformation, DCI), and this control signal transmits in PDCCH.
As one embodiment of the present of invention, ServingeNB carries the information of the CP pattern that data division adopts in the PDCCH transmitting the control signal issued to UE.The information of the CP pattern that this data division adopts is the information of 1bit, if this information is set to ' 0 ' represent that data division have employed normalCP pattern, if be set to ' 1 ' to represent that data division have employed extendedCP pattern.Certainly, also can be, if this information is set to ' 1 ' represent that data division have employed normalCP pattern, if be set to ' 0 ' to represent that data division have employed extendedCP pattern.
As an alternative embodiment of the invention, ServingeNB informs by high-level signaling the CP pattern that the numbering of the eNB in its collaboration set of UE and the eNB of each numbering correspondence adopt in advance, when ServingeNB sends control signaling to UE, in control signal, carry eNB numbering, notice UE is which eNB sends data to it.Because UE has known the CP pattern of the eNB employing that each numbering is corresponding, then UE is also just aware of the CP pattern that data division adopts indirectly.
S102, ServingeNB send this control signal to UE;
S103, UE receive the control signal that ServingeNB sends, and with the addition of the information of informing the CP pattern that UE data division adopts in this control signal;
The CP pattern that the control signal determination data division that S104, UE are sent by ServingeNB adopts, if the CP pattern that control signal adopts is different from the CP pattern that data division adopts, then the CP pattern adopted according to the data division indicated in control signal is determined which sign-on to carry out the demodulation of data division from or determine from which sign-on to carry out the demodulation of data division according to the CP pattern that CP pattern and the data division of control signal employing adopt.
In embodiments of the present invention, when with the addition of notice UE in control signal and which sign-on carrying out the information of the demodulation of data division from, step S104 also comprises:
If the CP pattern that control signal adopts is different from the CP pattern that data division adopts, then the information of which sign-on to carry out the demodulation of data division according to the notice UE in control signal from determines from which sign-on to carry out the demodulation of data division.
In embodiments of the present invention, if control signal employing is extendedCP pattern, and data division employing is normalCP pattern, if control signal occupies 0-n OFDM symbol, from the n-th+2 OFDM symbol, then carry out the demodulation of data division, described n is natural number.
Under difficult channel conditions, different e NB sends downstream signal, and the time arriving UE may be asynchronous, also may carry out data demodulates according to mode below:
The ServingeNB such as sent control signaling is asynchronous in time with the eNB sending data division, and be greater than the distance of eNB to the UE sending data division, when causing data section signal backwardness control signal more due to the distance of ServingeNB to the UE sent control signaling.
If that control signal adopts is extended cyclic prefix pattern extendedCP, and that data division employing is normal cyclic prefix pattern normalCP, if control signal occupies 0-n OFDM symbol, from (n+1)th OFDM symbol, then carry out the demodulation of data division, described n is natural number.
Or the ServingeNB such as sent control signaling is asynchronous in time with the eNB sending data division, and be less than the distance of eNB to the UE sending data division, when causing data section signal backwardness control signal less due to the distance of ServingeNB to the UE sent control signaling.
If that control signal adopts is extended cyclic prefix pattern extendedCP, and that data division employing is normal cyclic prefix pattern normalCP, if control signal occupies 0-n OFDM symbol, from the n-th+3 OFDM symbol, then carry out the demodulation of data division, described n is natural number.
If control signal employing is normalCP pattern, and data division employing is extendedCP pattern, if control signal occupies 0-n OFDM symbol, then from (n+1)th OFDM symbol, carry out the demodulation of data division, described n is natural number.
Under difficult channel conditions, different e NB sends downstream signal, and the time arriving UE may be asynchronous, also may carry out data demodulates according to mode below:
The ServingeNB such as sent control signaling is asynchronous in time with the eNB sending data division, and be greater than the distance of eNB to the UE sending data division, when causing data section signal backwardness control signal more due to the distance of ServingeNB to the UE sent control signaling.
If that control signal adopts is normal cyclic prefix pattern normalCP, and that data division employing is extended cyclic prefix pattern extendedCP, if control signal occupies 0-n OFDM symbol, then from the n-th OFDM symbol, carry out the demodulation of data division, described n is natural number.
Or the ServingeNB such as sent control signaling is asynchronous in time with the eNB sending data division, and be less than the distance of eNB to the UE sending data division, when causing data section signal backwardness control signal less due to the distance of ServingeNB to the UE sent control signaling.
If that control signal adopts is normal cyclic prefix pattern normalCP, and that data division employing is extended cyclic prefix pattern extendedCP, if control signal occupies 0-n OFDM symbol, from the n-th+2 OFDM symbol, then carry out the demodulation of data division, described n is natural number.
Refer to Fig. 4, be the flow chart of the collocation method of the collaboration set of the UE that the embodiment of the present invention provides, the method can be applicable to the configuration of the collaboration set of the UE based on DPS, and also can be applicable to other scenes, the method comprises:
S201, servingeNB configure one group of collaboration set to UE;
Part or all of eNB identical with the CP pattern that servingeNB adopts for the CP pattern of the employing in contiguous eNB is added the collaboration set of described UE by S202, servingeNB.
In the collocation method of the collaboration set of the UE provided in the embodiment of the present invention, the method can also comprise:
UE judges that described servingeNB is whether the CP pattern that eNB that the collaboration set of described UE adds adopts is identical with the CP pattern that described servingeNB adopts, if different, then UE reports an error to servingeNB; Or
UE receives the control signal that ServingeNB sends, and with the addition of the information of informing the CP pattern that UE data division adopts in described control signal;
The CP pattern that the control signal determination data division that UE is sent by ServingeNB adopts, if the CP pattern that control signal adopts is different from the CP pattern that data division adopts, then UE thinks that reception signaling is wrong, no longer carries out the demodulation of data division.
Refer to Fig. 5, the ServingeNB that first embodiment of the invention provides comprises interpolation module 11 and sending module 12.Wherein,
Add module 11, for adding the information of informing the CP pattern that UE data division adopts in control signal; In embodiments of the present invention, this control signal is descending control signaling (DownlinkControlInformation, DCI), and this control signal transmits in PDCCH.
Sending module 12, for sending this control signal to UE.
As one embodiment of the present of invention, add module specifically for carrying the information of the CP pattern that data division adopts in the PDCCH transmitting the control signal issued to UE.The information of the CP pattern that this data division adopts is the information of 1bit, if this information is set to ' 0 ' represent that data division have employed normalCP pattern, if be set to ' 1 ' to represent that data division have employed extendedCP pattern.Certainly, also can be, if this information is set to ' 1 ' represent that data division have employed normalCP pattern, if be set to ' 0 ' to represent that data division have employed extendedCP pattern.
As an alternative embodiment of the invention, ServingeNB also comprises and informs module in advance, for informing by high-level signaling the CP pattern that the numbering of the eNB in its collaboration set of UE and the eNB of each numbering correspondence adopt in advance; Now, when adding module specifically for sending control signaling to UE, carry eNB numbering in control signal, notice UE is which eNB sends data to it.Because UE has known the CP pattern of the eNB employing that each numbering is corresponding, then UE is also just aware of the CP pattern that data division adopts indirectly.
Refer to Fig. 6, the UE that first embodiment of the invention provides comprises receiver module 21, CP mode decision module 22 and demodulation module 23.Wherein,
Receiver module 21, for receiving the control signal that ServingeNB sends, with the addition of the information of informing the CP pattern that UE data division adopts in this control signal;
CP mode decision module 22, the CP pattern that the control signal determination data division for being sent by ServingeNB is adopted;
Demodulation module 23, CP pattern for adopting when CP mode decision module determination control signal is different from the CP pattern that data division adopts, then the CP pattern adopted according to the data division indicated in control signal is determined which sign-on to carry out the demodulation of data division from or determine from which sign-on to carry out the demodulation of data division according to the CP pattern that CP pattern and the data division of control signal employing adopt.
In embodiments of the present invention, when with the addition of notice UE in control signal and which sign-on carrying out the information of the demodulation of data division from, the CP pattern of described demodulation module also for adopting when CP mode decision module determination control signal is different from the CP pattern that data division adopts, then the information of which sign-on to carry out the demodulation of data division according to the notice UE in control signal from determines from which sign-on to carry out the demodulation of data division.
In embodiments of the present invention, if control signal employing is extendedCP pattern, and data division employing is normalCP pattern, if control signal occupies 0-n OFDM symbol, from the n-th+2 OFDM symbol, then carry out the demodulation of data division, described n is natural number.
Under difficult channel conditions, different e NB sends downstream signal, and the time arriving UE may be asynchronous, also may carry out data demodulates according to mode below:
The ServingeNB such as sent control signaling is asynchronous in time with the eNB sending data division, and be greater than the distance of eNB to the UE sending data division, when causing data section signal backwardness control signal more due to the distance of ServingeNB to the UE sent control signaling.
If that control signal adopts is extended cyclic prefix pattern extendedCP, and that data division employing is normal cyclic prefix pattern normalCP, if control signal occupies 0-n OFDM symbol, from (n+1)th OFDM symbol, then carry out the demodulation of data division, described n is natural number.
Or the ServingeNB such as sent control signaling is asynchronous in time with the eNB sending data division, and be less than the distance of eNB to the UE sending data division, when causing data section signal backwardness control signal less due to the distance of ServingeNB to the UE sent control signaling.
If that control signal adopts is extended cyclic prefix pattern extendedCP, and that data division employing is normal cyclic prefix pattern normalCP, if control signal occupies 0-n OFDM symbol, from the n-th+3 OFDM symbol, then carry out the demodulation of data division, described n is natural number.
If control signal employing is normalCP pattern, and data division employing is extendedCP pattern, if control signal occupies 0-n OFDM symbol, then from (n+1)th OFDM symbol, carry out the demodulation of data division, described n is natural number.
Under difficult channel conditions, different e NB sends downstream signal, and the time arriving UE may be asynchronous, also may carry out data demodulates according to mode below:
The ServingeNB such as sent control signaling is asynchronous in time with the eNB sending data division, and be greater than the distance of eNB to the UE sending data division, when causing data section signal backwardness control signal more due to the distance of ServingeNB to the UE sent control signaling.
If that control signal adopts is normal cyclic prefix pattern normalCP, and that data division employing is extended cyclic prefix pattern extendedCP, if control signal occupies 0-n OFDM symbol, then from the n-th OFDM symbol, carry out the demodulation of data division, described n is natural number.
Or the ServingeNB such as sent control signaling is asynchronous in time with the eNB sending data division, and be less than the distance of eNB to the UE sending data division, when causing data section signal backwardness control signal less due to the distance of ServingeNB to the UE sent control signaling.
If that control signal adopts is normal cyclic prefix pattern normalCP, and that data division employing is extended cyclic prefix pattern extendedCP, if control signal occupies 0-n OFDM symbol, from the n-th+2 OFDM symbol, then carry out the demodulation of data division, described n is natural number.
Refer to Fig. 7, the ServingeNB that second embodiment of the invention provides comprises configuration module 31 and adds module 32, wherein,
Configuration module 31, for configuring one group of collaboration set to user equipment (UE);
Add module 32, for part or all of eNB identical with the CP pattern that service evolution base station adopts for the cyclic prefix CP pattern of the employing in contiguous evolution base station eNB being added the collaboration set of described UE.
Refer to Fig. 8, the subscriber equipment that second embodiment of the invention provides comprises judge module 41 and the module 42 that reports an error, wherein,
Judge module, for judging that service evolution base station servingeNB is whether the cyclic prefix CP pattern that evolution base station eNB that the collaboration set of described subscriber equipment adds adopts is identical with the CP pattern that described servingeNB adopts;
Report an error module, for judge when described judge module servingeNB be CP pattern that eNB that the collaboration set of described subscriber equipment adds adopts different from the CP pattern that described servingeNB adopts time, report an error to servingeNB.
Refer to Fig. 9, the subscriber equipment that third embodiment of the invention provides comprises receiver module 51, CP mode decision module 52 and abandons demodulation module 53, wherein,
Receiver module, for receiving the control signal that service evolution base station ServingeNB sends, with the addition of the information of informing the cyclic prefix CP pattern that user equipment (UE) data division adopts in this control signal;
CP mode decision module, the CP pattern that the control signal determination data division for being sent by ServingeNB is adopted;
Abandon demodulation module, for when the CP pattern that CP mode decision module determination control signal adopts is different from the CP pattern that data division adopts, thinks that reception signaling is wrong, no longer carry out the demodulation of data division.
In embodiments of the present invention, because ServingeNB adds the information of informing the CP pattern that UE data division adopts in control signal, therefore the CP pattern that the control signal determination data division that UE can be sent by ServingeNB adopts, if the CP pattern that control signal adopts is different from the CP pattern that data division adopts, the CP pattern then adopted according to the data division indicated in control signal is determined which sign-on to carry out the demodulation of data division from or determine from which sign-on to carry out the demodulation of data division according to the CP pattern that CP pattern and the data division of control signal employing adopt.Therefore the embodiment of the present invention is when the CP pattern that control signal adopts is different from the CP pattern that data division adopts, and makes UE still can demodulate correct data.
One of ordinary skill in the art will appreciate that, the all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, described program can be stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (33)
1. a data transmission method, is characterized in that, described method comprises:
Service evolution base station ServingeNB adds the information of informing the cyclic prefix CP pattern that user equipment (UE) data division adopts in control signal;
ServingeNB sends described control signal to UE, with the CP pattern making UE be adopted by the control signal determination data division that ServingeNB sends, if the CP pattern that control signal adopts is different from the CP pattern that data division adopts, then the CP pattern adopted according to the data division indicated in control signal is determined which sign-on to carry out the demodulation of data division from or determine from which sign-on to carry out the demodulation of data division according to the CP pattern that CP pattern and the data division of control signal employing adopt.
2. the method for claim 1, is characterized in that, described control signal is descending control signaling DCI, and described control signal transmits in physical layer descending control channel PDCCH.
3. method as claimed in claim 2, it is characterized in that, described service evolution base station ServingeNB adds and informs that the information of the cyclic prefix CP pattern that user equipment (UE) data division adopts specifically comprises in control signal: ServingeNB carries the information of the CP pattern that data division adopts in the PDCCH transmitting the control signal issued to UE.
4. method as claimed in claim 3, is characterized in that, the information of the CP pattern that described data division adopts is specially:
The information of the CP pattern that described data division adopts is the information of 1bit, if described information is set to 0 expression data division have employed normal cyclic prefix pattern normalCP, if be set to 1 expression data division to have employed extended cyclic prefix pattern extendedCP; Or, if information is set to 1 expression data division have employed normalCP pattern, if be set to 0 expression data division to have employed extendedCP pattern.
5. the method for claim 1, is characterized in that, described service evolution base station ServingeNB adds and informs that the information of the cyclic prefix CP pattern that user equipment (UE) data division adopts specifically comprises in control signal:
ServingeNB informs by high-level signaling the CP pattern that the numbering of the eNB in its collaboration set of UE and the eNB of each numbering correspondence adopt in advance, when ServingeNB sends control signaling to UE, in control signal, carry eNB numbering, notice UE is which eNB sends data to it.
6. the method for claim 1, is characterized in that, described method also comprises:
ServingeNB adds the information that notice UE carries out the demodulation of data division from which sign-on in control signal, and described control signal is high-level signaling or descending control signaling DCI.
7. a data demodulation method, is characterized in that, described method comprises:
User equipment (UE) receives the control signal that service evolution base station ServingeNB sends, and with the addition of the information of informing the cyclic prefix CP pattern that UE data division adopts in described control signal;
The CP pattern that the control signal determination data division that UE is sent by ServingeNB adopts, if the CP pattern that control signal adopts is different from the CP pattern that data division adopts, then the CP pattern adopted according to the data division indicated in control signal is determined which sign-on to carry out the demodulation of data division from or determine from which sign-on to carry out the demodulation of data division according to the CP pattern that CP pattern and the data division of control signal employing adopt.
8. method as claimed in claim 7, is characterized in that, the CP pattern that the described CP pattern according to control signal employing and data division adopt determines that the demodulation which sign-on to carry out data division from is specially:
If that control signal adopts is extended cyclic prefix pattern extendedCP, and that data division employing is normal cyclic prefix pattern normalCP, if control signal occupies 0-n OFDM symbol, from the n-th+2 OFDM symbol, then carry out the demodulation of data division, described n is natural number.
9. method as claimed in claim 7, is characterized in that, the CP pattern that the described CP pattern according to control signal employing and data division adopt determines that the demodulation which sign-on to carry out data division from is specially:
If that control signal adopts is extended cyclic prefix pattern extendedCP, and that data division employing is normal cyclic prefix pattern normalCP, if control signal occupies 0-n OFDM symbol, from (n+1)th OFDM symbol, then carry out the demodulation of data division, described n is natural number.
10. method as claimed in claim 7, is characterized in that, the CP pattern that the described CP pattern according to control signal employing and data division adopt determines that the demodulation which sign-on to carry out data division from is specially:
If that control signal adopts is extended cyclic prefix pattern extendedCP, and that data division employing is normal cyclic prefix pattern normalCP, if control signal occupies 0-n OFDM symbol, from the n-th+3 OFDM symbol, then carry out the demodulation of data division, described n is natural number.
11. methods as claimed in claim 7, is characterized in that, the CP pattern that the described CP pattern according to control signal employing and data division adopt determines that the demodulation which sign-on to carry out data division from is specially:
If that control signal adopts is normal cyclic prefix pattern normalCP, and that data division employing is extended cyclic prefix pattern extendedCP, if control signal occupies 0-n OFDM symbol, from (n+1)th OFDM symbol, then carry out the demodulation of data division, described n is natural number.
12. methods as claimed in claim 7, is characterized in that, the CP pattern that the described CP pattern according to control signal employing and data division adopt determines that the demodulation which sign-on to carry out data division from is specially:
If that control signal adopts is normal cyclic prefix pattern normalCP, and that data division employing is extended cyclic prefix pattern extendedCP, if control signal occupies 0-n OFDM symbol, then from the n-th OFDM symbol, carry out the demodulation of data division, described n is natural number.
13. methods as claimed in claim 7, is characterized in that, the CP pattern that the described CP pattern according to control signal employing and data division adopt determines that the demodulation which sign-on to carry out data division from is specially:
If that control signal adopts is normal cyclic prefix pattern normalCP, and that data division employing is extended cyclic prefix pattern extendedCP, if control signal occupies 0-n OFDM symbol, from the n-th+2 OFDM symbol, then carry out the demodulation of data division, described n is natural number.
14. methods as claimed in claim 7, is characterized in that, also added the information that notice UE carries out the demodulation of data division from which sign-on in described control signal, described control signal is high-level signaling or descending control signaling DCI;
Described method also comprises:
If the CP pattern that control signal adopts is different from the CP pattern that data division adopts, then the information of which sign-on to carry out the demodulation of data division according to the notice UE in control signal from determines from which sign-on to carry out the demodulation of data division.
The collocation method of the collaboration set of 15. 1 kinds of user equipment (UE)s, is characterized in that, described method comprises:
Service evolution base station servingeNB configures one group of collaboration set to UE;
Part or all of eNB identical with the CP pattern that servingeNB adopts for the cyclic prefix CP pattern of the employing in contiguous evolution base station eNB is added the collaboration set of described UE by servingeNB;
ServingeNB adds the information of informing the cyclic prefix CP pattern that user equipment (UE) data division adopts in control signal;
ServingeNB sends described control signal to UE.
16. methods as claimed in claim 15, it is characterized in that, described method also comprises:
UE judges that described servingeNB is whether the CP pattern that eNB that the collaboration set of described UE adds adopts is identical with the CP pattern that described servingeNB adopts, if different, then UE reports an error to servingeNB.
17. methods as claimed in claim 15, it is characterized in that, described method also comprises:
UE receives the control signal that ServingeNB sends, and with the addition of the information of informing the CP pattern that UE data division adopts in described control signal;
The CP pattern that the control signal determination data division that UE is sent by ServingeNB adopts, if the CP pattern that control signal adopts is different from the CP pattern that data division adopts, then UE thinks that reception signaling is wrong, no longer carries out the demodulation of data division.
18. 1 kinds of service evolution base station, is characterized in that, described service evolution base station comprises:
Add module, for adding the information of informing the cyclic prefix CP pattern that user equipment (UE) data division adopts in control signal;
Sending module, for sending described control signal to UE, with the CP pattern making UE be adopted by the control signal determination data division that ServingeNB sends, if the CP pattern that control signal adopts is different from the CP pattern that data division adopts, then the CP pattern adopted according to the data division indicated in control signal is determined which sign-on to carry out the demodulation of data division from or determine from which sign-on to carry out the demodulation of data division according to the CP pattern that CP pattern and the data division of control signal employing adopt.
19. service evolution base station as claimed in claim 18, it is characterized in that, described control signal is descending control signaling DCI, and described control signal transmits in physical layer descending control channel PDCCH.
20. service evolution base station as claimed in claim 19, is characterized in that, described interpolation module specifically for carrying the information of the CP pattern that data division adopts in the PDCCH transmitting the control signal issued to UE.
21. service evolution base station as claimed in claim 20, is characterized in that, the information of the CP pattern that described data division adopts is specially:
The information of the CP pattern that described data division adopts is the information of 1bit, if described information is set to 0 expression data division have employed normal cyclic prefix pattern normalCP, if be set to 1 expression data division to have employed extended cyclic prefix pattern extendedCP; Or, if information is set to 1 expression data division have employed normalCP pattern, if be set to 0 expression data division to have employed extendedCP pattern.
22. service evolution base station as claimed in claim 18, it is characterized in that, described service evolution base station also comprises:
Inform module in advance, for informing by high-level signaling the CP pattern that the numbering of the eNB in its collaboration set of UE and the eNB of each numbering correspondence adopt in advance, when ServingeNB sends control signaling to UE, carry eNB numbering in control signal, notice UE is which eNB sends data to it.
23. service evolution base station as claimed in claim 18, it is characterized in that, described interpolation module also carries out the information of the demodulation of data division from which sign-on for interpolation notice UE in control signal, described control signal is high-level signaling or descending control signaling DCI.
24. 1 kinds of subscriber equipmenies, is characterized in that, described subscriber equipment comprises:
Receiver module, for receiving the control signal that ServingeNB sends, with the addition of the information of informing the CP pattern that UE data division adopts in this control signal;
CP mode decision module, the CP pattern that the control signal determination data division for being sent by ServingeNB is adopted;
Demodulation module, CP pattern for adopting when CP mode decision module determination control signal is different from the CP pattern that data division adopts, then the CP pattern adopted according to the data division indicated in control signal is determined which sign-on to carry out the demodulation of data division from or determine from which sign-on to carry out the demodulation of data division according to the CP pattern that CP pattern and the data division of control signal employing adopt.
25. subscriber equipmenies as claimed in claim 24, is characterized in that, the CP pattern that the described CP pattern according to control signal employing and data division adopt determines that the demodulation which sign-on to carry out data division from is specially:
If that control signal adopts is extended cyclic prefix pattern extendedCP, and that data division employing is normal cyclic prefix pattern normalCP, if control signal occupies 0-n OFDM symbol, from the n-th+2 OFDM symbol, then carry out the demodulation of data division, described n is natural number.
26. subscriber equipmenies as claimed in claim 24, is characterized in that, the CP pattern that the described CP pattern according to control signal employing and data division adopt determines that the demodulation which sign-on to carry out data division from is specially:
If that control signal adopts is extended cyclic prefix pattern extendedCP, and that data division employing is normal cyclic prefix pattern normalCP, if control signal occupies 0-n OFDM symbol, from (n+1)th OFDM symbol, then carry out the demodulation of data division, described n is natural number.
27. subscriber equipmenies as claimed in claim 24, is characterized in that, the CP pattern that the described CP pattern according to control signal employing and data division adopt determines that the demodulation which sign-on to carry out data division from is specially:
If that control signal adopts is extended cyclic prefix pattern extendedCP, and that data division employing is normal cyclic prefix pattern normalCP, if control signal occupies 0-n OFDM symbol, from the n-th+3 OFDM symbol, then carry out the demodulation of data division, described n is natural number.
28. subscriber equipmenies as claimed in claim 24, is characterized in that, the CP pattern that the described CP pattern according to control signal employing and data division adopt determines that the demodulation which sign-on to carry out data division from is specially:
If that control signal adopts is normal cyclic prefix pattern normalCP, and that data division employing is extended cyclic prefix pattern extendedCP, if control signal occupies 0-n OFDM symbol, from (n+1)th OFDM symbol, then carry out the demodulation of data division, described n is natural number.
29. subscriber equipmenies as claimed in claim 24, is characterized in that, the CP pattern that the described CP pattern according to control signal employing and data division adopt determines that the demodulation which sign-on to carry out data division from is specially:
If that control signal adopts is normal cyclic prefix pattern normalCP, and that data division employing is extended cyclic prefix pattern extendedCP, if control signal occupies 0-n OFDM symbol, then from the n-th OFDM symbol, carry out the demodulation of data division, described n is natural number.
30. subscriber equipmenies as claimed in claim 24, is characterized in that, the CP pattern that the described CP pattern according to control signal employing and data division adopt determines that the demodulation which sign-on to carry out data division from is specially:
If that control signal adopts is normal cyclic prefix pattern normalCP, and that data division employing is extended cyclic prefix pattern extendedCP, if control signal occupies 0-n OFDM symbol, from the n-th+2 OFDM symbol, then carry out the demodulation of data division, described n is natural number.
31. subscriber equipmenies as claimed in claim 24, is characterized in that, also added the information that notice UE carries out the demodulation of data division from which sign-on in described control signal, described control signal is high-level signaling or descending control signaling DCI;
The CP pattern of described demodulation module also for adopting when CP mode decision module determination control signal is different from the CP pattern that data division adopts, then the information of which sign-on to carry out the demodulation of data division according to the notice UE in control signal from determines from which sign-on to carry out the demodulation of data division.
32. 1 kinds of service evolution base station, is characterized in that, described service evolution base station comprises:
Configuration module, for configuring one group of collaboration set to user equipment (UE);
Add module, for part or all of eNB identical with the CP pattern that service evolution base station adopts for the cyclic prefix CP pattern of the employing in contiguous evolution base station eNB being added the collaboration set of described UE;
Add module, for adding the information of informing the cyclic prefix CP pattern that user equipment (UE) data division adopts in control signal;
Sending module, for sending described control signal to UE.
33. 1 kinds of subscriber equipmenies, is characterized in that, described subscriber equipment comprises:
Receiver module, for receiving the control signal that service evolution base station ServingeNB sends, with the addition of the information of informing the cyclic prefix CP pattern that user equipment (UE) data division adopts in this control signal;
CP mode decision module, the CP pattern that the control signal determination data division for being sent by ServingeNB is adopted;
Abandon demodulation module, for when the CP pattern that CP mode decision module determination control signal adopts is different from the CP pattern that data division adopts, thinks that reception signaling is wrong, no longer carry out the demodulation of data division.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| 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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| 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 |
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| CN102739355A CN102739355A (en) | 2012-10-17 |
| CN102739355B true CN102739355B (en) | 2016-03-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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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| US8577299B2 (en) * | 2004-06-04 | 2013-11-05 | Qualcomm Incorporated | Wireless communication system with configurable cyclic prefix length |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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) | 2013-11-07 |
| CN102739355A (en) | 2012-10-17 |
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