CN102832985A - Beamforming transmission method and equipment - Google Patents
Beamforming transmission method and equipment Download PDFInfo
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- CN102832985A CN102832985A CN2012103087559A CN201210308755A CN102832985A CN 102832985 A CN102832985 A CN 102832985A CN 2012103087559 A CN2012103087559 A CN 2012103087559A CN 201210308755 A CN201210308755 A CN 201210308755A CN 102832985 A CN102832985 A CN 102832985A
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Abstract
The embodiment of the invention discloses a beamforming transmission method and beamforming transmission equipment, which relate to the field of wireless communication and are used for improving accuracy of beamforming. In the scheme provided by the embodiment, positional information of a terminal is also required to be reported when the terminal reports channel state information, and a base station acquires a direction-of-arrival (DOA) angle according to the positional information of the terminal and further performs beamforming treatment of a downlink signal according to the DOA angle and the channel state information. By adopting the scheme, the accuracy of the beamforming can be improved.
Description
Technical field
The present invention relates to wireless communication field, relate in particular to a kind of wave beam forming transmission method and equipment.
Background technology
Present wave beam forming technology mainly is a kind of Signal Pretreatment technology based on aerial array, and wave beam forming produces through the weight coefficient of each array element in the adjustment aerial array has the wave beam of directive property, thereby obtains tangible array gain.
Network side is after receiving the channel condition information of terminal to report (comprising channel quality indication (CQI) information etc.); Estimate the arrival bearing angle (Direction-of-Arrival of the upward signal that carries this channel condition information; DOA); And carry out channel estimating according to channel condition information, obtain the figuration vector according to channel estimation results and DOA, and the signal that sends is carried out beam forming processing according to this figuration vector.
In time division duplex (TDD) system, the wave beam forming technology is the wave beam forming that is based on characteristic value decomposition (Eigenvalue Based Beamforming, the EBB) algorithm of employing extensively at present.The EBB algorithm is determined the figuration vector of employing according to following formula (1).
According to formula (1), the EBB algorithm is to choose the vectorial w that can make transmission obtain the maximum power gain
kAs figuration vector w, this figuration vector w is channel correlation matrix R
XxThe characteristic vector of eigenvalue of maximum mapping.If there is the transmission of multilayer, then need pass through R
XxCarry out characteristic value decomposition and obtain a plurality of characteristic vectors:
(N
LThe number of plies of expression transmission), the characteristic value of the subchannel equivalent gain that each characteristic vector is represented is respectively:
Satisfy
Common i layer (i ∈ 1 .., N
L) i characteristic vector v of employing
iFiguration vector as the i layer data.
The another kind of algorithm that the wave beam forming technology adopts is dirty paper (DP) algorithm.DP algorithm carries out QR through the transposition to the channel matrix of uplink and decomposes, and obtains unitary matrice Q, and the complex-conjugate matrix that uses the Q matrix is as the figuration matrix, and the i row in the figuration matrix are the figuration vector of i layer data.
It is thus clear that, for the TDD system, the reciprocity of present wave beam forming techniques make use channel; Carry out channel estimating according to channel condition information; And the DOA of estimation upward signal, with the DOA that estimates the downstream signal that sends is carried out beam forming processing according to channel estimation results, accuracy is lower.
Summary of the invention
The embodiment of the invention provides a kind of wave beam forming transmission method and equipment, is used to improve the accuracy of wave beam forming.
A kind of wave beam forming transmission method, this method comprises:
This terminal current position information that the base station receiving terminal reports and the channel condition information that is used for confirming the wave beam forming vector;
The base station is confirmed the arrival bearing angle DoA at terminal according to this DoA and said channel condition information the signal that needs send to the terminal to be carried out beam forming processing according to said positional information, and the signal after beam forming processing is sent at the terminal.
A kind of information uploading method, this method comprises:
The terminal need obtain this terminal current position information when network side reports the channel condition information that is used for definite wave beam forming vector;
The terminal reports network side with said positional information and said channel condition information.
A kind of base station, this base station comprises:
First receiving element, the channel condition information that is used for this terminal current position information that receiving terminal reports and is used for confirming the wave beam forming vector;
First confirms the unit, is used for confirming according to said positional information the arrival bearing angle DoA at terminal;
First transmission unit is used for according to this DoA and said channel condition information the signal that needs send to the terminal being carried out beam forming processing, and the signal after beam forming processing is sent at the terminal.
A kind of terminal, this terminal comprises:
Acquiring unit is used for and need when network side reports the channel condition information that is used for definite wave beam forming vector, obtaining this terminal current position information;
Report the unit, be used for said positional information and said channel condition information are reported network side.
In the scheme that the embodiment of the invention provides; The terminal also needs the positional information of reporting terminal when reporting status information of channel; The base station then obtains DOA according to location information of terminals; And then downstream signal is carried out beam forming processing according to this DOA and channel condition information; Because the DOA at terminal estimates according to upward signal in the prior art, and is the DOA that obtains the terminal according to the positional information of terminal to report in this programme, so the accuracy of the DOA at the terminal that obtains in this programme is higher than the DOA that estimates in the prior art; Thereby make the accuracy of wave beam forming in this programme will be higher than the accuracy of wave beam forming in the prior art, therefore adopt this programme can improve the accuracy of wave beam forming.
Description of drawings
The method flow sketch map that Fig. 1 provides for the embodiment of the invention;
Another method schematic flow sheet that Fig. 2 provides for the embodiment of the invention;
Fig. 3 a is the operation principle sketch map of the embodiment of the invention;
Fig. 3 b is the schematic flow sheet of the embodiment of the invention;
The architecture of base station sketch map that Fig. 4 provides for the embodiment of the invention;
The terminal structure sketch map that Fig. 5 provides for the embodiment of the invention.
Embodiment
In order to improve the accuracy of wave beam forming; The embodiment of the invention provides a kind of wave beam forming transmission method; In this method; The terminal also needs the positional information of reporting terminal when reporting status information of channel, the base station then obtains DOA according to location information of terminals, and then according to this DOA and channel condition information downstream signal is carried out beam forming processing.
Referring to Fig. 1, the wave beam forming transmission method that the embodiment of the invention provides may further comprise the steps:
Step 10: this terminal current position information that the base station receiving terminal reports and the channel condition information that is used for confirming the wave beam forming vector;
Here, positional information specifically can be that (certainly, positional information can also be any other information that can represent terminal location to global positioning system for Global Positioning Systems, GPS) positional information.Channel condition information can comprise CQI information etc.
Step 11: the positional information that the base station basis receives is confirmed the DoA information at terminal, according to this DoA information and the channel condition information that receives the signal that needs send to the terminal is carried out beam forming processing, and the signal after beam forming processing is sent at the terminal.
Here, the DoA information at terminal is confirmed according to the positional information that receives in the base station, concrete grammar can for: the gps coordinate in this positional information is converted into the vector of expression DOA, this vector is confirmed as the DOA information at terminal.Concrete conversion method is: suppose that the location information of terminals that receives is that (z1), the coordinate of base station is (a, b for x1, y1 with coordinate representation; C), then the relative position coordinates of terminal and base station can be expressed as (xsin α, ysin β, zsin γ); X wherein, y, z are the poor of terminal location coordinate and base station coordinates, i.e. (x; Y, z)=(x1-a, y1-b, z1-c).(α, beta, gamma) promptly is the vector of expression DOA.
Preferable, between step 10 and step 11, following steps can be carried out in the base station: according to location information of terminals that receives and channel condition information, confirm whether the terminal is in direct projection (LOSS) channel; Accordingly, when the base station was in the LOSS channel at definite terminal, execution in step 11 again; If the base station confirms that the terminal is in non-LOSS channel, then carries out wave beam forming according to prior art to downstream signal.
Location information of terminals that above-mentioned basis receives and channel condition information; Confirm whether the terminal is in the LOSS channel; The position that concrete implementation method can be confirmed this base station according to this positional information for: base station is first Vector Message of the position at this terminal relatively; According to the DoA of the upward signal of carrying positional information that estimates according to prior art and channel condition information and the delayed data (promptly this upward signal is from the propagation delay time information of terminal to base station) of this upward signal, the position of confirming this base station is second Vector Message of the position at this terminal relatively; Confirm whether first Vector Message is consistent with second Vector Message, if, confirm that then the terminal is in the LOSS channel, otherwise, confirm that the terminal is not in the LOSS channel.
Here, the position of this base station relatively first Vector Message of the position at this terminal can comprise: according to the deflection at the air line distance information at definite this base station of the positional information of this terminal current position information that receives and this base station and this terminal and this base station and this terminal (i.e. angle between the line at this base station and this terminal and the vertical normal).The position of this base station second Vector Message of the position at this terminal relatively can comprise the air line distance information at this base station and this terminal and the deflection at this base station and this terminal; The delayed data that air line distance information in second Vector Message can equal this upward signal multiply by the light velocity, the DoA of the carrying positional information that deflection can equal to estimate according to prior art in second Vector Message and the upward signal of channel condition information.When whether definite first Vector Message and second Vector Message be consistent; If the air line distance information in first Vector Message is consistent with air line distance information in second Vector Message, deflection and the unanimity of the deflection in second Vector Message in first Vector Message; Confirm that then first Vector Message is consistent with second Vector Message; Otherwise, confirm that first Vector Message and second Vector Message are inconsistent.
When first Vector Message and second Vector Message are inconsistent; The channel circumstance that present located area, terminal is described is comparatively complicated; The main energy that upward signal is sent at the terminal comes from diffraction or reflection etc.; Therefore this energy is not on the line that converges between terminal and base station, can think that the terminal is current to be in non-LOSS channel, does not possess the condition of signal of base station direct projection to the terminal.If first Vector Message is consistent with second Vector Message; The main energy that the upward signal that send at the terminal is described is present on the line at base station and terminal, can think that the terminal is in the environment of base station signal direct projection, i.e. the LOSS channel circumstance; Therefore; The base station is when carrying out wave beam forming, and positional information that can reference terminal reported is directly carried out wave beam forming to this position.
Preferable, in step 11, after the signal of base station after beam forming processing is sent at the terminal, can carry out following steps:
Steps A: the base station is the positional information and the channel condition information that report of receiving terminal once more;
Step B: the positional information that the base station received according to positional information that receives once more and last time is confirmed the movement velocity at terminal, confirms the motion path that the terminal is current through inquiry GIS-Geographic Information System (GIS) information database; Movement velocity and motion path according to the positional information that receives once more, terminal dope the terminal in next positional information constantly;
Step C: the DoA information at terminal is confirmed in the base station according to the positional information that dopes; Channel condition information according to DoA information of confirming and reception once more carries out beam forming processing to the signal that next moment needs sends to the terminal, and at next signal of the moment after beam forming processing is sent at the terminal.
Preferable, between steps A and step B, the base station can confirm whether the terminal is in the LOSS channel according to the positional information and the channel condition information that receive once more; When the base station is in the LOSS channel at definite terminal, execution in step B and step C again; Be in non-LOSS channel if confirm the terminal, then not execution in step B and step C.
Concrete; The base station is according to the positional information and the channel condition information that receive once more among the step B; Confirm whether the terminal is in the LOSS channel; The position that concrete implementation method can be confirmed this base station according to the positional information that receives once more for: base station is first Vector Message of the position at this terminal relatively; The DoA of the positional information that receives once more according to the carrying that estimates according to prior art and the upward signal of channel condition information and the delayed data (promptly this upward signal is from the propagation delay time information of terminal to base station) of this upward signal, the position of confirming this base station is second Vector Message of the position at this terminal relatively; Confirm whether first Vector Message is consistent with second Vector Message, if, confirm that then the terminal is in the LOSS channel, otherwise, confirm that the terminal is not in the LOSS channel.
Here, the position of this base station relatively first Vector Message of the position at this terminal can comprise: according to the deflection at the air line distance information at definite this base station of the positional information of the positional information that receives once more and this base station and this terminal and this base station and this terminal (i.e. angle between the line at this base station and this terminal and the vertical normal).The position of this base station second Vector Message of the position at this terminal relatively can comprise the air line distance information at this base station and this terminal and the deflection at this base station and this terminal; The delayed data that air line distance information in second Vector Message can equal to carry once more the upward signal of the positional information that receives and channel condition information multiply by the light velocity, the DoA of the positional information that deflection can equal to receive once more according to the carrying that prior art estimates in second Vector Message and the upward signal of channel condition information.When whether definite first Vector Message and second Vector Message be consistent; If the air line distance information in first Vector Message is consistent with air line distance information in second Vector Message, deflection and the unanimity of the deflection in second Vector Message in first Vector Message; Confirm that then first Vector Message is consistent with second Vector Message; Otherwise, confirm that first Vector Message and second Vector Message are inconsistent.
Concrete; The movement velocity at terminal is confirmed in the base station among the step B according to positional information that receives once more and the last positional information that receives; Concrete implementation method can for: confirm that according to positional information that receives once more and the last positional information that receives the terminal sends the motion distance of positional information in the time period of sending positional information once more from the last time; With the time span of this motion distance, obtain the movement velocity at terminal divided by this time period.
Concrete, confirm the motion path that the terminal is current through inquiry GIS information database among the step B, concrete realization can be following:
Store the positional information of at least one geographic paths in the GIS information database; The base station is through inquiry GIS information database; The positional information of each geographic paths that obtains to store in this GIS information database; Confirm the geographic paths at current place, terminal according to the positional information that receives once more, with the geographic paths of confirming as the current motion path in terminal.
Concrete, the base station dopes the terminal in next positional information constantly according to the movement velocity and the motion path at the positional information that receives once more, terminal among the step B, illustrates; Suppose the base station once more the moment of receiving position information be t1, next is t2 constantly, the base station confirms that according to the positional information that receives once more the terminal is currently located at the location point A on the motion path l; The movement velocity at terminal is v; The direction of motion is from the west eastwards, and so, the terminal is positioned at the location point B on the motion path l constantly at next; Location point B is in location point A east side, and location point B and location point A be exemplified as v* (t2-t1).
Concrete, the location information of terminals that the base station basis dopes among the step C is confirmed the DoA information at terminal, concrete realization can be following: the gps coordinate in the positional information that dopes is converted into the vector of representing DOA, this vector is confirmed as the DOA information at terminal.Concrete conversion method is: suppose that the location information of terminals that dopes is that (z1), the coordinate of base station is (a, b for x1, y1 with coordinate representation; C), then the relative position coordinates of terminal and base station can be expressed as (xsin α, ysin β, zsin γ); X wherein, y, z are the poor of terminal location coordinate and base station coordinates, i.e. (x; Y, z)=(x1-a, y1-b, z1-c).(α, beta, gamma) promptly is the vector of expression DOA.
Certainly, the base station can repeated execution of steps A-step C, and concrete realization is repeated no more here.
Referring to Fig. 2, the embodiment of the invention provides a kind of information uploading method, may further comprise the steps:
Step 20: the terminal need obtain this terminal current position information when network side reports the channel condition information that is used for definite wave beam forming vector;
Here, positional information specifically can be the GPS positional information, and certainly, positional information can also be any other information that can represent terminal location.Channel condition information can comprise CQI information etc.
Step 21: the terminal reports network side with positional information and channel condition information.
Here, the terminal can report network side with positional information and channel condition information through ascending control channel (PUCCH).
The present invention will be described below in conjunction with specific embodiment:
Shown in Fig. 3 a, terminal signal via satellite can be carried out GPS and accurately located.Subsequently, the terminal can report the base station with the GPS positional information of self, is judged the wave beam forming that whether can carry out downstream signal according to the GPS positional information of terminal to report by the base station.
Concrete realization flow is shown in Fig. 3 b:
Step 1: behind the accessing terminal to network, send terminal current GPS positional information and the channel condition information that is used for confirming the wave beam forming vector to the base station;
Step 2: this terminal current GPS positional information and channel condition information that the base station receiving terminal reports estimate the DOA of the upward signal that carries this GPS positional information and channel condition information;
Step 3: the base station confirms according to GPS positional information that receives and the DOA that estimates whether the terminal is in the LOSS channel, if, then arrive step 4, otherwise, to step 8;
Step 4: the GPS positional information that the base station basis receives is confirmed the DoA information at terminal, according to this DoA information and channel condition information the signal that needs send to the terminal is carried out beam forming processing, and the signal after beam forming processing is sent at the terminal;
Step 5: the base station is the GPS positional information and the channel condition information that report of receiving terminal once more; Confirm the movement velocity at terminal according to GPS positional information that receives once more and the last GPS positional information that receives; Confirm the motion path that the terminal is current through inquiry GIS information database; Dope the terminal in next GPS positional information constantly according to the GPS positional information, movement velocity and the motion path that receive once more;
Step 6: the DoA information at terminal is confirmed in the base station according to the GPS positional information that dopes; Channel condition information according to DoA information of confirming and reception once more carries out beam forming processing to the signal that next moment needs sends to the terminal, and at next signal of the moment after beam forming processing is sent at the terminal;
Step 7: base station repeated execution of steps 5-step 6, up to terminal deviated from network, flow process finishes;
Step 8: the base station is carried out wave beam forming according to prior art to downstream signal.
Referring to Fig. 4, the embodiment of the invention provides a kind of base station, and this base station comprises:
First receiving element 40, the channel condition information that is used for this terminal current position information that receiving terminal reports and is used for confirming the wave beam forming vector;
First confirms unit 41, is used for confirming according to said positional information the arrival bearing angle DoA at terminal;
Further, this base station also comprises:
First identifying unit 43 is used for before the DoA at terminal is confirmed according to said positional information in said first definite unit, according to said positional information that receives and said channel condition information, confirming whether said terminal is in direct projection LOSS channel;
Said first confirms that unit 41 is used for:
When definite said terminal is in the LOSS channel, confirm the DoA at terminal according to said positional information.
Further, this base station also comprises:
Second receiving element 44 is used for after the signal after sending beam forming processing to the terminal, once more the positional information and the channel condition information that report of receiving terminal;
Predicting unit 45 is used for the movement velocity of confirming the terminal according to the positional information and the last positional information that receives of said reception once more; Confirm the motion path that the terminal is current through inquiry GIS information database; Dope the terminal in next positional information constantly according to the positional information, said movement velocity and the motion path that receive once more;
Second confirms unit 46, is used for confirming according to the positional information that dopes the DoA at terminal;
Further, this base station also comprises:
Second identifying unit 48 is used for before the DoA at terminal is confirmed once more according to the positional information that dopes in said second definite unit, according to the positional information and the channel condition information that receive once more, confirming whether said terminal is in the LOSS channel;
Said second confirms that unit 46 is used for:
When said second identifying unit confirms that said terminal is in the LOSS channel, confirm the DoA at terminal once more according to the positional information that dopes.
Further, said predicting unit 45 is used for: when said GIS information database stores the positional information of at least one geographic paths, confirm the motion path that the terminal is current according to following method through inquiry GIS information database:
Through inquiry GIS information database; The positional information of each geographic paths that obtains to store in this GIS information database; Confirm the geographic paths at current place, said terminal according to the positional information that receives once more, with the geographic paths of confirming as the current motion path in terminal.
Further, said first identifying unit 43 or second identifying unit 48 are used for:
Confirm first Vector Message of position at the said relatively terminal, position of said base station according to positional information; According to the DoA of the upward signal of carrying positional information that estimates and channel condition information and the delayed data of this upward signal, confirm second Vector Message of position at the said relatively terminal, position of said base station;
Confirm whether first Vector Message is consistent with second Vector Message, if, confirm that then said terminal is in the LOSS channel, otherwise, confirm that said terminal is not in the LOSS channel.
Further, said first confirms that unit 41 or second definite unit 46 are used for:
Gps coordinate in the positional information is converted into the vector of expression DOA.
Referring to Fig. 5, the embodiment of the invention provides a kind of terminal, and this terminal comprises:
Acquiring unit 50 is used for and need when network side reports the channel condition information that is used for definite wave beam forming vector, obtaining this terminal current position information;
To sum up, beneficial effect of the present invention comprises:
In the scheme that the embodiment of the invention provides; The terminal also needs the positional information of reporting terminal when reporting status information of channel; The base station then obtains DOA according to location information of terminals; And then downstream signal is carried out beam forming processing according to this DOA and channel condition information; Because the DOA at terminal estimates according to upward signal in the prior art, and is the DOA that obtains the terminal according to the positional information of terminal to report in this programme, so the accuracy of the DOA at the terminal that obtains in this programme is higher than the DOA that estimates in the prior art; Thereby make the accuracy of wave beam forming in this programme will be higher than the accuracy of wave beam forming in the prior art, therefore adopt this programme can improve the accuracy of wave beam forming.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out through the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in ability vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work; Make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device; Make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of on computer or other programmable devices, carrying out is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic inventive concept could of cicada, then can make other change and modification to these embodiment.So accompanying claims is intended to be interpreted as all changes and the modification that comprises preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, belong within the scope of claim of the present invention and equivalent technologies thereof if of the present invention these are revised with modification, then the present invention also is intended to comprise these changes and modification interior.
Claims (16)
1. a wave beam forming transmission method is characterized in that, this method comprises:
This terminal current position information that the base station receiving terminal reports and the channel condition information that is used for confirming the wave beam forming vector;
The arrival bearing angle DoA information at terminal is confirmed according to said positional information in the base station, according to this DoA information and said channel condition information the signal that needs send to the terminal is carried out beam forming processing, and the signal after beam forming processing is sent at the terminal.
2. the method for claim 1 is characterized in that, before the DoA information at terminal is confirmed according to said positional information in the base station, further comprises:
The base station confirms according to the said positional information and the said channel condition information that receive whether said terminal is in direct projection LOSS channel;
Said base station is confirmed specifically to comprise the DoA information at terminal according to said positional information:
When the base station is in the LOSS channel at definite said terminal, confirm the DoA information at terminal according to said positional information.
3. the method for claim 1 is characterized in that, after the signal after beam forming processing is sent at the terminal, further comprises:
The base station is the positional information and the channel condition information that report of receiving terminal once more;
The movement velocity at terminal is confirmed in the base station according to positional information that receives once more and the last positional information that receives; Confirm the motion path that the terminal is current through inquiry GIS-Geographic Information System GIS information database; Dope the terminal in next positional information constantly according to the positional information, said movement velocity and the motion path that receive once more;
The DoA information at terminal is confirmed in the base station according to the positional information that dopes; Channel condition information according to DoA information of confirming and reception once more carries out beam forming processing to the signal that next moment needs sends to the terminal, and at next signal of the moment after beam forming processing is sent at the terminal.
4. method as claimed in claim 3 is characterized in that, according to the positional information that receives once more with on before the positional information that once receives confirms the movement velocity at terminal, further comprise:
The base station confirms according to the positional information and the channel condition information that receive once more whether said terminal is in the LOSS channel;
Positional information that said basis receives once more and the last positional information that receives are confirmed the movement velocity at terminal, specifically comprise:
When the base station is in the LOSS channel at definite said terminal, confirm the movement velocity at terminal according to positional information that receives once more and the last positional information that receives.
5. method as claimed in claim 3 is characterized in that, stores the positional information of at least one geographic paths in the said GIS information database, saidly confirms the motion path that the terminal is current through inquiry GIS information database, specifically comprises:
The base station is through inquiry GIS information database; The positional information of each geographic paths that obtains to store in this GIS information database; Confirm the geographic paths at current place, said terminal according to the positional information that receives once more, with the geographic paths of confirming as the current motion path in terminal.
6. like claim 2 or 4 described methods, it is characterized in that the base station confirms that according to positional information and channel condition information whether said terminal is in the LOSS channel, specifically comprises:
First Vector Message of position at the said relatively terminal, position of said base station is confirmed in the base station according to positional information; According to the DoA of the upward signal of carrying positional information that estimates and channel condition information and the delayed data of this upward signal, confirm second Vector Message of position at the said relatively terminal, position of said base station;
The base station confirms whether first Vector Message is consistent with second Vector Message, if, confirm that then said terminal is in the LOSS channel, otherwise, confirm that said terminal is not in the LOSS channel.
7. like claim 1 or 3 described methods, it is characterized in that the base station is confirmed specifically to comprise the DoA information at terminal according to positional information:
The terminal is converted into the vector of representing DOA with the gps coordinate in the positional information, this vector is confirmed as the DoA information at terminal.
8. an information uploading method is characterized in that, this method comprises:
The terminal need obtain this terminal current position information when network side reports the channel condition information that is used for definite wave beam forming vector;
The terminal reports network side with said positional information and said channel condition information.
9. a base station is characterized in that, this base station comprises:
First receiving element, the channel condition information that is used for this terminal current position information that receiving terminal reports and is used for confirming the wave beam forming vector;
First confirms the unit, is used for confirming according to said positional information the arrival bearing angle DoA information at terminal;
First transmission unit is used for according to this DoA information and said channel condition information the signal that needs send to the terminal being carried out beam forming processing, and the signal after beam forming processing is sent at the terminal.
10. base station as claimed in claim 9 is characterized in that, this base station also comprises:
First identifying unit is used for before the DoA information at terminal is confirmed according to said positional information in said first definite unit, according to said positional information that receives and said channel condition information, confirming whether said terminal is in direct projection LOSS channel;
Said first confirms that the unit is used for:
When definite said terminal is in the LOSS channel, confirm the DoA information at terminal according to said positional information.
11. base station as claimed in claim 9 is characterized in that, this base station also comprises:
Second receiving element is used for after the signal after sending beam forming processing to the terminal, once more the positional information and the channel condition information that report of receiving terminal;
Predicting unit is used for the movement velocity of confirming the terminal according to the positional information and the last positional information that receives of said reception once more; Confirm the motion path that the terminal is current through inquiry GIS information database; Dope the terminal in next positional information constantly according to the positional information, said movement velocity and the motion path that receive once more;
Second confirms the unit, is used for confirming according to the positional information that dopes the DoA information at terminal;
Second transmission unit; Be used for according to said second confirm DoA information of confirming the unit and the channel condition information that receives once more to next constantly needs signal of sending to the terminal carry out beam forming processing, and at next signal after terminal transmission beam forming processing constantly.
12. base station as claimed in claim 11 is characterized in that, this base station also comprises:
Second identifying unit; Be used for said predicting unit according to the said positional information that receives once more with on before the positional information that once receives confirms the movement velocity at terminal; According to the positional information and the channel condition information that receive once more, confirm whether said terminal is in the LOSS channel;
Said predicting unit is used for:
When said second identifying unit confirms that said terminal is in the LOSS channel, confirm the movement velocity at terminal according to said positional information that receives once more and the last positional information that receives.
13. base station as claimed in claim 11; It is characterized in that; Said predicting unit is used for: when said GIS information database stores the positional information of at least one geographic paths, confirm the motion path that the terminal is current according to following method through inquiry GIS information database:
Through inquiry GIS information database; The positional information of each geographic paths that obtains to store in this GIS information database; Confirm the geographic paths at current place, said terminal according to the positional information that receives once more, with the geographic paths of confirming as the current motion path in terminal.
14., it is characterized in that said first identifying unit or second identifying unit are used for like claim 10 or 12 described base stations:
Confirm first Vector Message of position at the said relatively terminal, position of said base station according to positional information; According to the DoA of the upward signal of carrying positional information that estimates and channel condition information and the delayed data of this upward signal, confirm second Vector Message of position at the said relatively terminal, position of said base station;
Confirm whether first Vector Message is consistent with second Vector Message, if, confirm that then said terminal is in the LOSS channel, otherwise, confirm that said terminal is not in the LOSS channel.
15., it is characterized in that said first confirms that unit or second definite unit are used for like claim 9 or 11 described base stations:
Gps coordinate in the positional information is converted into the vector of representing DOA, this vector is confirmed as the DOA information at terminal.
16. a terminal is characterized in that, this terminal comprises:
Acquiring unit is used for and need when network side reports the channel condition information that is used for definite wave beam forming vector, obtaining this terminal current position information;
Report the unit, be used for said positional information and said channel condition information are reported network side.
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