CN104753578A - Method and device for confirming shaped beam GOB vector of auxiliary carrier wave - Google Patents
Method and device for confirming shaped beam GOB vector of auxiliary carrier wave Download PDFInfo
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Abstract
The invention discloses a method for confirming a shaped beam GOB vector of an auxiliary carrier wave. The method for confirming the shaped beam GOB vector of the auxiliary carrier wave is used in a CA system. The method for confirming the shaped beam GOB vector of the auxiliary carrier wave includes: judging whether a first intersection angle is equal to a second intersection angle, wherein the first intersection angle is an intersection angle between a user terminal and the antenna normal direction of a main carrier wave, and the second intersection angle is an intersection angle between the user terminal and the antenna normal direction of the auxiliary carrier wave; if the first intersection angle is not equal to the second intersection angle, judging whether an angle difference between the first intersection angle and the second intersection angle always is a fixed value; if the angle difference between the first intersection angle and the second intersection angle always is the fixed value, confirming the GOB vector according to the fixed value and an AOA value of the user terminal in the wave incoming direction of the user terminal; if the angle difference between the first intersection angle and the second intersection angle is not the fixed value always, confirming the GOB vector according to a direction of arrival DOA of the user terminal on the auxiliary carrier wave. The method for confirming the shaped beam GOB vector of the auxiliary carrier wave can achieve the purpose of confirming technical effects of the GOB vector of the auxiliary carrier wave when the CA system where the main carrier wave and the auxiliary carrier wave are located is not in a frequency segment.
Description
Technical field
The present invention relates to digital communication technology field, particularly a kind of method and apparatus determining the wave beam forming GOB vector of auxiliary carrier wave.
Background technology
The peak rate that Long Term Evolution LTE-A proposes is descending 1Gbps, and up 500Mbps, upstream peak spectrum efficiency is 15bps/Hz, lower behavior 30bps/Hz.In order to meet the demand of so high peak rate and peaks spectrum utilance, LTE-A is needed to support maximum 100M Hz bandwidth.But be difficult to find so large bandwidth in existing available spectrum resources, and large bandwidth also brings very large difficulty for the hardware designs of base station and terminal.In addition, for the frequency spectrum resource be dispersed in multiple frequency range, need a kind of technology badly and they are fully utilized.Based on above-mentioned consideration, LTE-A introduces this key technology of carrier aggregation CA.CA can be Terminal Service by several continuous or discrete frequency bands of polymerization jointly, thus improves the up-downgoing speed of terminal.
CA base station can by the carrier component of multiple quantity (maximum 5, each maximum 20MHz; Frequency range can be continuous, also can be discontinuous) gather together, be Terminal for service.Maintain with terminal the carrier wave that radio resource control RRC is connected, be referred to as main carrier PCC, or be referred to as main plot Pcell; Except the carrier wave except main carrier PCC, be referred to as auxiliary carrier wave SCC or auxiliary community Scell, main carrier PCC and auxiliary carrier wave SCC and can adopt independently transmission mode respectively according to channel quality information.
Beamforming technique is that one is applied to Small Distance aerial array multiple antenna transmission technique, transmitter adjusts according to the weight coefficient of channel condition information to each bay, make power concentration in the wave beam of the directivity expected, for user forms the wave beam of particular orientation.If know the orientation of other user simultaneously, by the calculating of shape-endowing weight value, can also be aimed at the orientation of other user the zero point of wave beam, thus reduce the interference to other user further.
Effectively can suppress interference due to beamforming technique and promote covering radius, being widely used in LTE system and lte-a system at present.LTE system defines transmission mode 7 in Rel-8, supports the wave beam forming of single current, has increased transmission mode 8 in Rel-9 newly, supports dual-stream beamforming, has increased transmission mode 9 in Rel-10 newly, supports the beamforming technique of multithread.
Effective combination of CA and beamforming technique can promote downlink throughput capacity (successfully transmitting the quantity of data in the unit interval), and wherein the use of beamforming technique needs terminal send SRS signal thus obtain descending channel condition information.Carrier aggregation comprises main carrier and auxiliary carrier wave two kinds of carrier waves, the major-minor carrier wave of original protocol definition can send SRS signal and be used for sounding channel quality, but a lot of terminal all can only support that main carrier sends SRS signal at present, auxiliary carrier wave does not support that SRS signal sends, because auxiliary carrier wave does not support that SRS signal sends, therefore auxiliary carrier wave can not do wave beam forming, thus causes the throughput on auxiliary carrier wave on the low side.
For realizing doing wave beam forming on auxiliary carrier wave, improving the throughput on auxiliary carrier wave, in prior art, providing following technical scheme:
When auxiliary carrier wave does not support that SRS sends, if the CA system at main carrier and auxiliary carrier wave place is the CA system in same frequency range, that is described main carrier and auxiliary carrier frequency section are continuous print, now can think that described main carrier is consistent with the channel condition information of auxiliary carrier wave; Now directly the wave beam forming of main carrier vector can be directly applied to the wave beam forming vector of auxiliary carrier wave, now can adopt the beamforming scheme of EBB (Eigen-valueBased Beamforming, the beam shaping of feature based value) or the beamforming scheme of GOB (angle-of-arrival estimation beam shaping).
But inventor is realizing in process of the present invention, finding that such scheme at least exists following technical problem:
Although such scheme can adopt the MIMO method of wave beam forming, but the application scenarios of this scheme is very limited, when the CA system being only applicable to main carrier and auxiliary carrier wave place is the CA system in frequency range, if during CA system in the non-frequency range of CA system at main carrier and auxiliary carrier wave place, then this scheme can not be adopted.
Therefore, face in prior art: during CA system in the non-same frequency range of CA system at main carrier and auxiliary carrier wave place, the technical problem of the wave beam forming GOB vector of auxiliary carrier wave cannot be determined.
Summary of the invention
The embodiment of the present invention provides a kind of method and apparatus determining the wave beam forming GOB vector of auxiliary carrier wave, during to realize the CA system in the non-frequency range of CA system at main carrier and auxiliary carrier wave place, determines the wave beam forming GOB vector of auxiliary carrier wave.
In order to achieve the above object, the embodiment of the present invention provides a kind of method determining the wave beam forming GOB vector of auxiliary carrier wave, is applied in carrier aggregation CA system, it is characterized in that, comprise the following steps:
Judge that whether the first angle is identical with the second angle; Wherein, described first angle is the angle of the antenna normal direction of user terminal and main carrier, and described second angle is the angle of the antenna normal direction of described user terminal and described auxiliary carrier wave;
If not identical, judge whether the differential seat angle between described first angle and the second angle is always fixed value;
If so, described GOB vector is determined according to described fixed value and described user terminal in the arrival bearing AOA value of described main carrier;
If not, determine described GOB vector according to described user terminal at the angle of arrival DOA of described auxiliary carrier wave.
The embodiment of the present invention also provides a kind of equipment determining the wave beam forming GOB vector of auxiliary carrier wave, is applied in carrier aggregation CA system, it is characterized in that, comprising:
First judge module, for judging that whether the first angle is identical with the second angle; Wherein, described first angle is the angle of the antenna normal direction of user terminal and main carrier, and described second angle is the angle of the antenna normal direction of described user terminal and described auxiliary carrier wave;
Second judge module, time not identical for described first angle and the second angle, judges whether the differential seat angle between described first angle and the second angle is always fixed value;
First determination module, when being always fixed value for described angle difference, determines described GOB vector according to described fixed value and described user terminal in the arrival bearing AOA value of described main carrier;
Second determination module, when being always fixed value for described angle difference is non-, determines described GOB vector according to described user terminal at the angle of arrival DOA of described auxiliary carrier wave.
Compared with prior art, method disclosed in the embodiment of the present invention can realize: during CA system in the non-same frequency range of CA system at main carrier and auxiliary carrier wave place, determine the wave beam forming GOB vector of auxiliary carrier wave; And then realize carrier aggregation technology and beamforming technique effectively to combine, to make full use of the advantage of beamforming algorithm, promote the downlink throughput capacity under carrier aggregation.
Accompanying drawing explanation
Fig. 1 is a kind of schematic flow sheet determining the method for the GOB vector of auxiliary carrier wave that the embodiment of the present invention one provides;
Schematic diagram when Fig. 2 A to be a kind of main carrier of providing of the embodiment of the present invention two with the antenna cover situation of auxiliary carrier wave be coverage is identical;
Schematic diagram when Fig. 2 B to be a kind of main carrier of providing of the embodiment of the present invention three with the antenna cover situation of auxiliary carrier wave be coverage is not identical;
Schematic diagram when Fig. 2 C to be the antenna cover situation of a kind of main carrier of providing of the embodiment of the present invention three and auxiliary carrier wave be coverage is overlapped;
Fig. 2 D to be the antenna cover situation of a kind of main carrier of providing of the embodiment of the present invention four and auxiliary carrier wave be grand covering and RRH zooms out schematic diagram during covering;
Fig. 2 E is the antenna cover situation of a kind of main carrier of providing of the embodiment of the present invention four and auxiliary carrier wave is the schematic diagram that grand covering and Repeater expand when covering;
Fig. 3 is a kind of structural representation determining the equipment of the wave beam forming GOB vector of auxiliary carrier wave that the embodiment of the present invention five provides.
Embodiment
Below in conjunction with accompanying drawing of the present invention, be clearly and completely described the technical scheme in the present invention, obviously, described embodiment is only section Example of the present invention, instead of whole embodiments.Based on embodiments of the invention, the every other embodiment that those skilled in the art obtain under the prerequisite not making creative work, all belongs to the scope of protection of the invention.
As shown in Figure 1, the schematic flow sheet of the method for the GOB vector of the auxiliary carrier wave of determination provided for the embodiment of the present invention one, specifically comprises the following steps:
Step 101, judge that whether the first angle is identical with the second angle;
For the ease of distinguishing and setting forth, in the preferred embodiments of the present invention one using the angle of the antenna normal direction of user terminal and main carrier as the first angle, using the angle of the antenna normal direction of user terminal and auxiliary carrier wave as the second angle, in follow-up description, the first angle and the second angle are made comparisons, if judge that the first angle is identical with the second angle, then determine GOB vector according to user terminal in the AOA value of described main carrier; If judge that the first angle is not identical with the second angle, then perform step 102.
In addition, before judging that whether the first angle is identical with the second angle, also need to judge that whether the CA system at main and auxiliary carrier wave place is the CA system in same frequency range, to determine whether to need to judge that whether the first angle is identical with the second angle;
In a preferred embodiment of the invention, specifically take following steps to judge whether to need to judge that whether the first angle is identical with the second angle:
Steps A, judge that whether the CA system at main and auxiliary carrier wave place is the CA system in same frequency range; If judge that the CA system at main and auxiliary carrier wave place is the CA system in same frequency range, then perform step B; If judge that the CA system at main and auxiliary carrier wave place is not with the CA system in frequency range, then perform step C;
Step B, according to described user terminal the AOA value of described main carrier determine described GOB vector;
Step C, judge that whether the first angle is identical with the second angle.
Step 102, judge whether the differential seat angle between described first angle and the second angle is always fixed value.
If judge, described differential seat angle is always fixed value, then perform step 103; If judge, described differential seat angle is not always fixed value, then perform step 104;
Step 103, determine the GOB vector of described auxiliary carrier wave in the arrival bearing AOA value of described main carrier according to described fixed value and described user terminal;
In a preferred embodiment of the invention, following steps are specifically taked to realize the acquisition of the GOB vector of described auxiliary carrier wave according to described fixed value and described user terminal in the arrival bearing AOA value of described main carrier:
Steps A, the channel quality detection signal SRS signal sent according to described user terminal determine the AOA value of described user terminal at described main carrier;
Step B, according to described fixed value and described user terminal main carrier AOA value determine the AOA value of described user terminal at auxiliary carrier wave with value;
Step C, frequency point information, antenna distance and described user terminal according to described auxiliary carrier wave determine described GOB vector in the AOA value of auxiliary carrier wave.
Step 104, according to described user terminal the angle of arrival DOA of described auxiliary carrier wave determine described auxiliary carrier wave GOB vector;
In a preferred embodiment of the invention, following steps are specifically taked to realize determining the GOB vector of described auxiliary carrier wave at the angle of arrival DOA of described auxiliary carrier wave according to described user terminal;
Steps A, add up in the AOA value of described main carrier and the linearly of described user terminal to send up the propagation delay that TA determines described user terminal and base station according to described user terminal;
Step B, determine the distance between described user terminal and described base station according to described propagation delay; The positional information of described user terminal is determined according to described distance;
Step C, determine described DOA according to the positional information of described user terminal and the aerial panel of described auxiliary carrier wave towards, panel normal direction; Described GOB vector is determined according to described DOA.
Below in conjunction with concrete application scenarios, the technical scheme that the embodiment of the present application two is proposed carry out clear, explain, as shown in Figure 2 A, the main carrier provided for the embodiment of the present invention two and the antenna cover situation of auxiliary carrier wave be coverage identical time schematic diagram, under this scene, due to when main carrier and auxiliary carrier wave cover together, now the first angle and the second angle are identical (the first angle are the angle of the antenna normal direction of user terminal and main carrier, and the second angle is the angle of the antenna normal direction of user terminal and auxiliary carrier wave).Therefore, after determining that the first angle is identical with the second angle, specifically take following steps to determine the GOB vector of auxiliary carrier wave in a preferred embodiment of the invention:
Step 201, using the user terminal determined in the AOA value of main carrier as the AOA value of user terminal at auxiliary carrier wave;
In a preferred embodiment of the invention, following following formulae discovery is specifically taked to obtain the AOA value of user terminal at main carrier:
AOA
main=max{GOB_vector × conj (eig (H'*H)
max)
Step 202, determine the GOB vector of auxiliary carrier wave according to the frequency point information of auxiliary carrier wave and antenna distance and user terminal in the AOA value of auxiliary carrier wave;
In a preferred embodiment of the invention, following following formulae discovery is specifically taked to obtain the GOB vector of auxiliary carrier wave:
Wherein, H is the channel matrix obtained by channel impulse response, and antenna array is 4+4 double polarized antenna, 4 antennas polarised direction, d
0for bay 0 is at the absolute position of antenna array, d
1for bay 1 is at the absolute position of antenna array, d
2for bay 2 is at the absolute position of antenna array, d
3for bay 3 is in the absolute position of antenna array, d is the center of antenna.As long as GOB algorithm determines the forming coefficient of 4 bays (0,1,2,3) of a calculating place polarised direction, the forming coefficient of rear 4 bays (4,5,6,7) of another polarised direction is corresponding identical with front 4 coefficients.
To it should be noted that antenna array to be 4+4 double polarized antenna be in the embodiment of the present invention preferably a kind of scheme out, in concrete scene, antenna array can also be other antenna arrays such as 8+8 double polarized antenna, will not enumerate at this.
Step 203, main carrier adopt the beamforming scheme of the figuration vector of EBB, and auxiliary carrier wave adopts the beamforming scheme of the figuration vector schemes of GOB.
It should be noted that and adopt the beamforming scheme of the figuration vector of EBB and adopt the beamforming scheme of the figuration vector of GOB to be technology ripe in prior art, do not repeating to repeat at this.
Below in conjunction with concrete application scenarios, the technical scheme that the embodiment of the present application three is proposed carry out clear, explain, as shown in Figure 2 B, the main carrier provided for the embodiment of the present invention three and the antenna cover situation of auxiliary carrier wave be coverage not identical time schematic diagram, as shown in Figure 2 C, the main carrier provided for the embodiment of the present invention three and the antenna cover situation of auxiliary carrier wave be coverage overlapped time schematic diagram; Under above-mentioned two kinds of scenes, because above-mentioned situation all belongs to the situation of main carrier and auxiliary carrier wave Cover treatment, when main carrier and auxiliary carrier wave Cover treatment, now the first angle and the second angle are not identical (the first angle are the angle of the antenna normal direction of user terminal and main carrier, and the second angle is the angle of the antenna normal direction of user terminal and auxiliary carrier wave); But the differential seat angle of two angles is a fixing value (Δ) all the time.Therefore, determining that the first angle is not identical with the second angle, after the differential seat angle of the first angle and the second angle is always fixed value, following steps are specifically taked to determine the GOB vector of auxiliary carrier wave in a preferred embodiment of the invention;
Step 301, determine the AOA value of user terminal at main carrier;
In a preferred embodiment of the invention, following following formulae discovery is specifically taked to obtain the AOA value of user terminal at main carrier:
AOA
main=max{GOB_vector × conj (eig (H'*H)
max).
Step 302, determine the AOA value of user terminal at auxiliary carrier wave according to what determine the differential seat angle (Δ) that AOA value and two angles of user terminal at main carrier are fixed with value;
In a preferred embodiment of the invention, specifically take following following formula determination user terminal in the AOA value of auxiliary carrier wave;
AOA
auxiliary=AOA
main+ Δ
Step 303, determine the GOB vector of auxiliary carrier wave according to the frequency point information of auxiliary carrier wave and antenna distance and user terminal in the AOA value of auxiliary carrier wave;
In a preferred embodiment of the invention, following following formulae discovery is specifically taked to obtain the GOB vector of auxiliary carrier wave:
Wherein, about above-mentioned parameter H, d
0, d
1, d
2, d
3, d explanation, please refer to parameter H, the d under Fig. 2 A scene
0, d
1, d
2, d
3, d explanation, at this not in repeat specification.
Step 304, main carrier adopt the beamforming scheme of the figuration vector of EBB, and auxiliary carrier wave adopts the beamforming scheme of the figuration vector schemes of GOB.
Below in conjunction with concrete application scenarios, the technical scheme that the embodiment of the present application four is proposed carry out clear, explain, as shown in Figure 2 D, the main carrier provided for the embodiment of the present invention four and the antenna cover situation of auxiliary carrier wave are grand covering and RRH schematic diagram when zooming out covering; As shown in Figure 2 E, a kind of main carrier provided for the embodiment of the present invention four and the antenna cover situation of auxiliary carrier wave are the schematic diagram that grand covering and Repeater expand when covering; Under this scene, the antenna all belonging to carrier wave and auxiliary carrier wave due to above-mentioned situation is the situation that different site covers, when the antenna of main carrier and auxiliary carrier wave be different site cover time, now not identical with the second angle (the first angle is the angle of the antenna normal direction of user terminal and main carrier to the first angle, second angle is the angle of the antenna normal direction of user terminal and auxiliary carrier wave), angle situation is unknown simultaneously; But due to when planning site, the aerial panel of each base station towards being that planning is good, with ensuring coverage non-blind area, therefore now each aerial panel of these base stations is known towards being.Therefore, determining that the first angle is not identical with the second angle, after the differential seat angle of the first angle and the second angle is not always fixed value, following steps are specifically taked to determine the GOB vector of auxiliary carrier wave in a preferred embodiment of the invention:
Step 401, determine the propagation delay of terminal and base station at the AOA value of main carrier and the TA of user terminal to send up according to user terminal;
Step 402, distance according to described propagation delay determination user terminal and base station;
Step 403, determine the positional information of user terminal according to the geographical position of main carrier;
Because the geographical position of main carrier is known, thus the positional information (concrete, the geographical position of user terminal can be referred to) of user terminal can be obtained;
Step 404, according to the positional information of this user terminal and the aerial panel of auxiliary carrier wave towards with the DOA of panel normal direction determination user terminal at auxiliary carrier wave;
Step 405, according to this user terminal the DOA of auxiliary carrier wave determine this user auxiliary carrier wave GOB vector.
Based on the design identical with said method, the embodiment of the present invention five additionally provides a kind of equipment determining the wave beam forming GOB vector of auxiliary carrier wave, and be applied in carrier aggregation CA system, its structure chart as shown in Figure 3, comprising:
Whether the first judge module 11 is identical with the second angle for the first angle; Wherein, described first angle is the angle of the antenna normal direction of user terminal and main carrier, and described second angle is the angle of the antenna normal direction of described user terminal and described auxiliary carrier wave;
Second judge module 12, time not identical for described first angle and the second angle, judges whether the differential seat angle between described angle is always fixed value;
First determination module 13, when being always fixed value for described angle difference, determines the GOB vector of described auxiliary carrier wave according to described fixed value and described user terminal in the arrival bearing AOA value of described main carrier;
Second determination module 14, when being always fixed value for described angle difference is non-, determines the GOB vector of described auxiliary carrier wave at the angle of arrival DOA of described auxiliary carrier wave according to described user terminal.
Described first determination module 13 specifically comprises:
One AOA value determines submodule, determines the AOA value of described user terminal at described main carrier for the channel quality detection signal SRS signal sent according to described user terminal;
2nd AOA value determines submodule, for determining described user terminal AOA value at auxiliary carrier wave in the AOA value of main carrier and described fixed value with value according to described user terminal;
GOB vector determines submodule, and the AOA value for the frequency point information according to described auxiliary carrier wave, antenna distance and described auxiliary carrier wave determines the GOB vector of described auxiliary carrier wave.
Second determination module 14 specifically comprises:
Propagation delay determination submodule, for adding up in the AOA value of described main carrier and the linearly of described user terminal to send up the propagation delay that TA determines described user terminal and base station according to described user terminal;
Distance determines submodule, for determining the distance between described user terminal and described base station according to described propagation delay;
Positional information determination submodule, for determining the positional information of described user terminal according to described distance;
DOA determines submodule, for determining the DOA of described user terminal at described auxiliary carrier wave according to the positional information of described user terminal and the aerial panel of described auxiliary carrier wave towards with panel normal direction;
GOB vector determines submodule, for determining the GOB vector of described auxiliary carrier wave at the DOA of described auxiliary carrier wave according to described user terminal.
Also comprise: the 3rd determination module 15, time identical with the second angle for described first angle, determine the GOB vector of described auxiliary carrier wave in the AOA value of described main carrier according to described user terminal.
Also comprise: the 3rd judge module 16, for judging that whether the CA system at described main carrier and described auxiliary carrier wave place is the CA system in same frequency range;
4th determination module 17, when being the CA system in same frequency range for described CA system, determines the GOB vector of described auxiliary carrier wave in the AOA value of described main carrier according to described user terminal;
First judge module 11, during specifically for CA system in the non-same frequency range of described CA system, judges that whether described first angle is identical with the second angle.
Can be realized by application embodiment of the present invention disclosed method and apparatus: during CA system in the non-frequency range of CA system at main carrier and auxiliary carrier wave place, determine the wave beam forming GOB vector of auxiliary carrier wave; And then realize carrier aggregation technology and beamforming technique effectively to combine, to make full use of the advantage of beamforming algorithm, promote the downlink throughput capacity under carrier aggregation.
Through the above description of the embodiments, those skilled in the art can be well understood to the embodiment of the present invention can by hardware implementing, and the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, the technical scheme of the embodiment of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions and perform each method implementing described in scene of the embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or network equipment etc.).
It will be appreciated by those skilled in the art that accompanying drawing is a schematic diagram preferably implementing scene, the module in accompanying drawing or flow process might not be that the enforcement embodiment of the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device implemented in scene can carry out being distributed in the device of enforcement scene according to implementing scene description, also can carry out respective change and being arranged in the one or more devices being different from this enforcement scene.The module of above-mentioned enforcement scene can merge into a module, also can split into multiple submodule further.
The invention described above embodiment sequence number, just to describing, does not represent the quality implementing scene.
Be only the several concrete enforcement scene of the embodiment of the present invention above, but the embodiment of the present invention is not limited thereto, the changes that any person skilled in the art can think of all should fall into the business limited field of the embodiment of the present invention.
Claims (10)
1. determine a method for the wave beam forming GOB vector of auxiliary carrier wave, be applied in carrier aggregation CA system, it is characterized in that, comprise the following steps:
Judge that whether the first angle is identical with the second angle; Wherein, described first angle is the angle of the antenna normal direction of user terminal and main carrier, and described second angle is the angle of the antenna normal direction of described user terminal and described auxiliary carrier wave;
If not identical, judge whether the differential seat angle between described first angle and the second angle is always fixed value;
If so, described GOB vector is determined according to described fixed value and described user terminal in the arrival bearing AOA value of described main carrier;
If not, determine described GOB vector according to described user terminal at the angle of arrival DOA of described auxiliary carrier wave.
2. the method for claim 1, is characterized in that, determines described GOB vector, be specially according to described fixed value and described user terminal in the AOA value of described main carrier:
The AOA value of described user terminal at described main carrier is determined according to the channel quality detection signal SRS signal that described user terminal sends;
According to described fixed value and described user terminal main carrier AOA value determine the AOA value of described user terminal at auxiliary carrier wave with value;
Described GOB vector is determined in the AOA value of auxiliary carrier wave according to the frequency point information of described auxiliary carrier wave, antenna distance and described user terminal.
3. the method for claim 1, is characterized in that, determines described auxiliary GOB vector, be specially according to described DOA:
Add up in the AOA value of described main carrier and the linearly of described user terminal to send up the propagation delay that TA determines described user terminal and base station according to described user terminal;
The distance between described user terminal and described base station is determined according to described propagation delay;
The positional information of described user terminal is determined according to described distance;
Described DOA is determined towards, panel normal direction according to the positional information of described user terminal and the aerial panel of described auxiliary carrier wave;
Described GOB vector is determined according to described DOA.
4. the method for claim 1, is characterized in that, also comprises:
If described first angle is identical with the second angle, determine described GOB vector according to described user terminal in the AOA value of described main carrier.
5. the method for claim 1, is characterized in that, before judging that whether described first angle is identical with the second angle, also comprises:
Judge that whether the CA system at described main carrier and described auxiliary carrier wave place is the CA system in same frequency range;
If so, described GOB vector is determined according to described user terminal in the AOA value of described main carrier;
If not, judge that whether described first angle is identical with the second angle.
6. determine an equipment for the wave beam forming GOB vector of auxiliary carrier wave, be applied in carrier aggregation CA system, it is characterized in that, comprising:
First judge module, for judging that whether the first angle is identical with the second angle; Wherein, described first angle is the angle of the antenna normal direction of user terminal and main carrier, and described second angle is the angle of the antenna normal direction of described user terminal and described auxiliary carrier wave;
Second judge module, time not identical for described first angle and the second angle, judges whether the differential seat angle between described first angle and the second angle is always fixed value;
First determination module, when being always fixed value for described angle difference, determines described GOB vector according to described fixed value and described user terminal in the arrival bearing AOA value of described main carrier;
Second determination module, when being always fixed value for described angle difference is non-, determines described GOB vector according to described user terminal at the angle of arrival DOA of described auxiliary carrier wave.
7. equipment as claimed in claim 6, it is characterized in that, described first determination module specifically comprises:
One AOA value determines submodule, determines the AOA value of described user terminal at described main carrier for the channel quality detection signal SRS signal sent according to described user terminal;
2nd AOA value determines submodule, for according to described fixed value and described user terminal main carrier AOA value determine the AOA value of described user terminal at auxiliary carrier wave with value;
GOB vector determines submodule, and the AOA value for the frequency point information according to described auxiliary carrier wave, antenna distance and described auxiliary carrier wave determines described GOB vector.
8. equipment as claimed in claim 6, it is characterized in that, the second determination module specifically comprises:
Propagation delay determination submodule, for adding up in the AOA value of described main carrier and the linearly of described user terminal to send up the propagation delay that TA determines described user terminal and base station according to described user terminal;
Distance determines submodule, for determining the distance between described user terminal and described base station according to described propagation delay;
Positional information determination submodule, for determining the positional information of described user terminal according to described distance;
DOA determines submodule, for determining described DOA according to the positional information of described user terminal and the aerial panel of described auxiliary carrier wave towards, panel normal direction;
GOB vector determines submodule, for determining described GOB vector according to described DOA.
9. equipment as claimed in claim 6, is characterized in that, also comprise:
3rd determination module, time identical with the second angle for described first angle, determines described GOB vector according to described user terminal in the AOA value of described main carrier.
10. equipment as claimed in claim 6, is characterized in that, also comprise:
3rd judge module, for judging that whether the CA system at described main carrier and described auxiliary carrier wave place is the CA system in same frequency range;
4th determination module, when being the CA system in same frequency range for described CA system, determines described GOB vector according to described user terminal in the AOA value of described main carrier;
First judge module, during specifically for CA system in the non-same frequency range of described CA system, judges that whether described first angle is identical with the second angle.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106685505A (en) * | 2015-11-10 | 2017-05-17 | ***通信集团江苏有限公司 | Method and apparatus for achieving carrier aggregation |
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