RU2775722C1 - Способ и устройство регулировки мощности, антенная решетка и носитель данных - Google Patents

Abstract

FIELD: radio engineering.

SUBSTANCE: invention relates to radio engineering, in particular to a method and device for adjusting the power of antenna systems. The expected result is achieved by the fact that the antenna array contains a base frequency processing unit, n package modules, a branching adder unit of the antenna array plane and an antenna correction unit, each of the n package modules includes the first gain adjustment unit and an antenna array element connected to the first gain adjustment unit, and the assigned package-module consisting of n package modules is connected to the base frequency processing unit and to the antenna array plane branch adder unit, and it is made with the possibility of, after receiving the base frequency signal transmitted by the base frequency processing unit, transmit the received base frequency signal to the base frequency processing unit through the antenna array plane branch adder unit and the antenna correction unit, where n is a positive integer.

EFFECT: simplification of the design and a reduction in the weight and size characteristics of the device and the antenna array.

13 cl, 13 dwg

Description

Link to related application

The present application is based on Chinese Patent Application No. 201811648135.3 filed Dec. 29, 2018 and claims conventional priority according to that application, the entire description of the above application is hereby incorporated by reference in its entirety.

The field of technology to which the present invention relates

The present application relates to the field of communications and, in particular, relates to a power control method and device, an antenna array and a data carrier.

Background of the Invention

In the prior art, an active antenna system (AAS) of a fifth generation (5G) mobile network base station performs power scaling and dynamic power control of a transmit channel by using an independent spur feedback channel (equivalent to the receive feedback channel TX1 in FIG. 1) to each transmitting channel in the equipment. A block diagram of the hardware architecture of such a system corresponds to that shown in FIG. In most cases, the feedback loop performs transmit power measurement, gain control data acquisition, and time division multiplexing digital pre-emphasis data acquisition. In the design of antenna array channels, each transmission channel requires a corresponding spur feedback channel to perform channel transmission power control within the AAS, which increases the amount of equipment, as well as the complexity and cost of installing trunk lines.

So far, no effective technical solution has been proposed in the prior art for the high volume and high cost trunk problems caused by the need for each transmit channel in an AAS to have a corresponding spur feedback channel.

Brief summary of the present invention

According to embodiments of the present invention, a power control method and apparatus, an antenna array, and a data carrier are provided that are aimed at solving at least the problems of large volume of equipment and high cost of trunk lines in the prior art, caused by the need to have for each transmission channel in the AAS corresponding branching feedback channel.

According to an embodiment of the present invention, an antenna array is provided, including: a base frequency processing unit, n packet modules, an antenna array plane branch adder unit, and an antenna correction unit, each of the n packet modules including: a first gain adjustment unit and an antenna array element connected to the first gain adjustment unit, wherein the assigned module package from among the n package modules is connected to the base frequency processing unit and to the antenna array plane branch adder unit, and it is configured, after receiving the base signal frequencies transmitted by the base frequency processing unit, transmitting the received base frequency signal to the base frequency processing unit through the antenna array plane branch adder unit and the antenna equalization unit, where n is a positive integer; the base frequency processing unit is configured to compare the power value of the received base frequency signal during testing with the value of the transmitted power during testing from the base frequency processing unit to determine the gain of the first gain adjustment unit in the assigned burst module according to the comparison result; and specifying the gain value to the first gain adjusting unit; and the n first gain adjusters are configured to adjust, according to the gain, the gain of the first gain adjuster in the burst-module of the n burst-modules other than the designated burst-module; so that n array elements in n packet modules have the same transmit power.

According to another embodiment of the present invention, a power control method is further provided, comprising the steps of: receiving, by a designated burst-module from among n burst-modules, a base frequency signal transmitted by a base frequency processing unit, and transmitting the received base frequency signal to the base frequency processing unit via a branching unit an antenna array plane adder and an antenna correction unit, where n is a positive integer, wherein the base frequency processing unit, n package modules connected to the base frequency processing unit, the antenna array plane branch adder unit connected to each of the n package modules, and an antenna correction unit connected to the antenna array plane branch adder unit are located on the antenna array, and each of the n package modules includes: a first gain adjustment unit and an antenna array element connected to the first gain adjustment unit; using the base frequency processing unit, comparing the power value of the received base frequency signal during testing with the test transmission power value from the base frequency processing unit, to determine the gain of the first gain adjustment unit in the assigned burst module according to the comparison result; and specifying a gain value to a first gain adjustment unit; and adjusting, by the n first gain adjusters and according to the gain, the gain of the first gain adjuster in the burst-module among the n burst-modules other than the designated burst-module; so that n array elements in n packet modules have the same transmit power.

According to another embodiment of the present invention, there is further provided a power adjusting apparatus, including: a receiving module configured to receive, with a designated burst-module from among n burst-modules, a base frequency signal transmitted by the base frequency processing unit; a transmitting module configured to transmit the received base frequency signal to the base frequency processing unit through the antenna array plane branch adder unit and the antenna correction unit, where n is a positive integer, wherein the base frequency processing unit, n packet modules connected to the processing unit base frequencies, the antenna array plane branch adder unit connected to each of the n package modules, and the antenna correction unit connected to the antenna array plane branch adder unit are located on the antenna array, and each of the n package modules includes: the first a gain adjustment unit and an antenna array element connected to the first gain adjustment unit; a determination module configured to compare, by means of the base frequency processing unit, the power value of the received base frequency signal during testing with the value of the transmitted power during testing from the base frequency processing unit in order to determine the gain of the first gain adjustment unit in the assigned packet module according to the result of the comparison ; and specifying the gain value to the first gain adjusting unit; and a control module configured to adjust, with the n first gain adjusters and according to the gain, the gain of the first gain adjuster in the packet of the n packets other than the assigned packet; so that n array elements in n packet modules have the same transmit power.

According to another embodiment of the present invention, a storage medium is further provided with a computer program stored therein, the computer program being capable of being executed to implement the above power control methods.

With the technical solutions proposed in the embodiments of the present invention, the problems with the large volume of equipment and the high cost of trunk lines in the prior art, caused by the need to have for each transmit channel in the AAS a corresponding feedback drop channel, and only one return drop channel is required connections, so that both hardware footprint and design complexity are reduced.

Brief description of the figures

The accompanying figures, which are introduced to provide a more complete understanding of the invention and are included in and are part of the present invention, show(s) embodiment(s) of the invention and are, together with the description, intended to explain the invention and not to limit the invention. On the figures:

figure 1 shows a block diagram of the hardware architecture of the AAS antenna array in the prior art;

figure 2 shows a block diagram of the structure of the antenna array according to the present invention;

Fig. 3 is a flowchart of a power control method according to the present invention;

Fig. 4 is a diagram of a power control apparatus for a transmission channel according to the present invention;

Fig. 5 shows a hardware diagram of a multi-stage adder block for channels of the TX1 plane of an antenna array according to the present invention;

figure 6 shows a diagram of a branch adder for elements of the plane TX1 of the antenna array according to the present invention;

Fig. 7 is a block diagram of the structure of a power adjusting device according to the present invention;

Fig. 8 shows a diagram of the receiving channel apparatus of an antenna correction unit according to the present invention;

Fig. 9 is a flowchart of a closed loop power control method according to the present invention;

Fig. 10 is a layout diagram of gain (Ka) adjustment elements in the plane of an antenna array according to the present invention;

Fig. 11 is a flowchart of an open loop power control method according to the present invention;

Fig. 12 is a diagram of the feedback signal branch points in a transmission channel according to the present invention; and

Fig. 13 is a diagram of an antenna subarray plane according to the present invention.

Detailed disclosure of the present invention

The present invention will be described in detail below with reference to the corresponding figures in conjunction with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other in an arbitrary order, as long as they do not conflict with each other.

It should also be noted that the terms "first", "second" and the like in the description, claims and figures of the embodiments of the present invention are used to distinguish between similar objects, and not to indicate a specific order or sequence.

For high-frequency AAC, the contribution of digital pre-distortion (DPD) to the high frequency modulation index is not large, and if the feedback channel is abandoned, the power level in the transmit channel can be adjusted using a conventional open-loop lookup table. However, this method has some disadvantages, including the following: 1) the full bandwidth transmission channel gain characteristics need to be obtained from testing a small number of AAS samples, and the problems of deviations in batch production are difficult to control; and 2) after operating the AAS for a long time, the transmit channel gain characteristics change and there is no effective means to detect and correct this. The above two defects cause excessive power deviation, which then leads to a decrease in the directivity of the antenna. However, each AAC transmission channel requires a corresponding spur feedback channel, resulting in a large amount of equipment and a high cost of trunk lines. In connection with these problems, the present invention proposes the following technical solution.

The present invention provides an antenna array. Figure 2 is a block diagram of the structure of an antenna array according to the present invention; As shown in FIG. 2, the antenna array includes: a base frequency processing unit 20, n packet modules 22, an antenna array plane branch adder unit 24, and an antenna correction unit 26. Each of the n package modules 22 includes: a first gain adjustment unit and an antenna array element connected to the first gain adjustment unit. The assigned module-packet of n-packet-modules is connected to the base frequency processing unit and to the antenna array plane branch adder unit, and it is configured, after receiving the base frequency signal transmitted by the base frequency processing unit, to transmit the received base frequency signal to the unit processing the base frequencies through the antenna array plane branch adder unit and the antenna correction unit, where n is a positive integer.

The base frequency processing unit 20 is configured to compare the test received power value of the base frequency signal with the test transmitted power value from the base frequency processing unit to determine the gain of the first gain adjustment unit in the assigned burst module according to the result of the comparison, and indicate the value of the first gain adjuster, the n first gain adjusters are configured to adjust, according to the gain, the gain of the first gain adjuster in the packet-module of the n packet-modules other than the designated burst-module; so that n array elements in n packet modules have the same transmit power.

With the antenna array proposed in the present invention, the problems with the large volume of equipment and the high cost of trunk lines in the prior art, caused by the need to have for each transmitting channel in the AAS a corresponding spur feedback channel, and therefore only one spur channel is required feedback, so that both hardware footprint and design complexity are reduced.

In the present invention, the n first gain adjusters are further configured to adjust, with the first gain adjuster of the assigned packet module, the gain of the antenna array element corresponding to the first gain adjuster, and receive, with the other first gain adjuster gain, the difference value of the first gain factor recorded by the base frequency processing unit, and adjust the transmit power of the antenna array element corresponding to the other first gain adjustment unit according to the difference value of the first gain factor, so that the antenna array elements in the n packet modules have the same transmitted power. The other first gain adjuster means the first gain adjuster among the n first gain adjusters other than the first gain adjuster in the assigned packet unit, and the first gain difference value means the difference value between the gain of the first gain adjuster in the assigned packet-module and the gain of the other first gain adjuster.

In the present invention, each of the stack modules further includes: m second gain adjusters, and a multi-stage adder that is connected to the m second gain adjusters. The multi-stage adder unit is configured to receive the base frequency signal, divide the base frequency signal between the m signal paths, and transmit the signals along the m signal paths to the antenna array elements through the m second gain adjustment units.

The antenna array element is configured to transmit a signal along the k-th signal path from among m signal paths, using a branch element or an antenna feed line for the antenna array element, to the base frequency processing unit through the antenna array plane branch adder unit and the antenna correction unit , the k-th signal path corresponds to the k-th second gain adjuster of the m second gain adjusters.

The base frequency processing unit 20 is configured to compare the test power value of the test signal received over the k-th signal path with the test transmitted power value from the base frequency processing unit to determine the gain for the k-th signal path according to the result of the comparison, and indicate the gain value for the k-th signal path to the m first gain adjusters.

The m second gain adjusters are configured to adjust the gain of the m signal paths according to the gain of the k-th signal path such that the m signal paths have the same gain, where k is a positive integer that does not exceed m

In the present invention, the m second gain adjusters are further configured to adjust the gain in the k-th signal path with the k-th second gain adjuster, and receive, with the other second gain adjuster, the second gain difference value recorded by the base frequency processing unit, and adjust the signal gain corresponding to the other second gain adjustment unit according to the second gain difference value so that the m signal paths have the same gain. The other second gain adjusting unit means the second gain adjusting unit of the m second gain adjusting units except the second gain adjusting unit corresponding to the k-th signal transmission path, and the second gain difference value means the difference value between the gain of the second unit adjusting the gain corresponding to the k-th signal transmission path and the gain of another second gain adjusting unit.

In the present invention, the base frequency processing unit 20 is further configured to adjust the variable gain of the first gain adjustment unit according to at least the following formula:

G _txad = Gtxtar - (G _tx + G _txtemp ),

where G _txad is the adjustable gain, G _txtar is the gain during testing for the transmit channel between the base frequency processor and the antenna array element, G _tx is the target gain for the transmit channel, and G _txtemp is the gain deviation value due to temperature difference between current temperature and normal temperature.

Based on the above antenna array, the present invention further provides a power control method. Figure 3 shows a flowchart of the power control method according to the present invention. As shown in figure 3, the method includes the following steps from S302 to S306.

In step S302, the designated burst-module of n burst-modules receives the base frequency signal transmitted by the base frequency processing unit, and transmits the received base frequency signal to the base frequency processing unit through the antenna array plane branch adder unit and the antenna correction unit, where n is a positive integer. The base frequency processing unit, n packet modules connected to the base frequency processing unit, the antenna array plane branch adder unit connected to each of the n packet modules, and the antenna correction unit connected to the antenna array plane branch adder unit are located on the antenna array, and each of the n package-modules includes: a first gain adjustment unit and an antenna array element connected to the first gain adjustment unit.

In step S304, the base frequency processing unit compares the received power value of the base frequency signal during testing with the test transmitted power value from the base frequency processing unit to determine the gain of the first gain adjustment unit in the assigned burst unit according to the result of the comparison, and specifies the value gain to the first gain adjustment block.

In step S306, the n first gain adjusters are adjusted according to the gain, the gain of the first gain adjuster in the burst-module of the n burst-modules other than the designated burst-module; so that n array elements in n packet modules have the same transmit power.

The embodiments of the present invention solve the problems with the large volume of equipment and the high cost of trunk lines in the prior art, caused by the need to have for each transmit channel in the AAS a corresponding drop feedback channel, and only one drop feedback channel is required, so that both hardware area and design complexity.

In the present invention, the step of adjusting the n first gain adjusters according to the gain value of the gain value of the first gain adjuster in a packet-module of n packet-modules other than the assigned packet-module, so that n antenna array elements in n packets modules have the same transmit power, provides for: adjustment by the first gain adjustment unit of the assigned package module of the gain value of the antenna array element corresponding to the first gain adjustment unit; and receiving, by the other gain adjustment unit, a difference value of the first gain recorded by the base frequency processing unit, and adjusting the transmit power of the antenna array element corresponding to the other first gain adjustment unit according to the difference value of the first gain, so that the antenna array elements in n packet -modules have the same transmitted power. The other first gain adjuster means the first gain adjuster among the n first gain adjusters other than the first gain adjuster in the assigned packet unit, and the first gain difference value means the difference value between the gain of the first gain adjuster in the assigned packet-module and the gain of the other first gain adjuster.

In the present invention, the step of receiving, by a designated burst-module of n burst-modules, the base frequency signal transmitted by the base frequency processing unit, and transmitting the received base frequency signal to the base frequency processing unit through the antenna array plane branch adder unit and the antenna equalization unit, comprises: receiving a base frequency signal by a multi-stage adder unit, branching the base frequency signal into m signal transmission paths, and transmitting signals along m paths to antenna array elements through m second gain adjustment units. Each of the module packages further includes: m second gain adjustment units, and a multi-stage adder unit, which is connected to m second gain adjustment units. The antenna array element is configured to transmit a signal along the k-th signal path from among m signal paths, using a branch element or an antenna feed line for the antenna array element, to the base frequency processing unit through the antenna array plane branch adder unit and the antenna correction unit , the k-th signal path corresponds to the k-th second gain adjuster of the m second gain adjusters.

The method further comprises: comparing, by the base frequency processing unit, a test signal power value received on the k-th signal path with a test power value transmitted from the base frequency processing unit to determine the gain for the k-th signal path according to the result of the comparison, and specifying a gain value for the k-th signal path to the m second gain adjustment units; and adjusting, by the m second gain adjusters, the values of the gains in the m signal paths according to the kth signal path so that the m signal paths have the same gain, where k is a positive integer not greater than m.

In the present invention, the step of adjusting the m second gain adjustment units of the gain values of the m signal paths according to the gain value of the k-th signal path so that there is the same gain in the main signal paths includes: adjusting by the k-th second a gain adjustment unit of a gain value in the k-th signal path, and receiving, by means of another second gain adjustment unit, a second gain difference value recorded by the base frequency processing unit, and adjusting the gain of the signal corresponding to the other second gain adjustment unit , according to the second gain difference value, so that the m signal paths have the same gain. The other second gain adjustment unit means the second gain adjustment unit of the m second gain adjustment units other than the second gain adjustment unit corresponding to the kth signal transmission path, and the second gain difference value denotes the difference value between the gain of the second unit adjusting the gain corresponding to the k-th signal transmission path and the gain of another second gain adjusting unit.

In the present invention, before the step of receiving, by the assigned burst-module of n burst-modules, the base frequency signal transmitted by the base frequency processing unit, the method further comprises: adjusting the base frequency processing unit of the variable gain of the first gain adjustment unit according to at least the following formula:

G _txad = G _txtar - (G _tx + G _txtemp ),

where G _txad is the adjustable gain, G _txtar is the target gain for the transmit channel between the base frequency processor and the antenna array element, G _tx is the gain during testing for the transmit channel, and G _txtemp is the gain deviation value due to temperature difference between current temperature and normal temperature.

In summary, embodiments of the present invention provide a method and hardware for combined channel power control in closed and open loop modes. The proposed architecture is shown in Fig. 4, in which the base frequency processing module outputs the base frequency signal in n transmission paths, through which it enters the intermediate radio frequency processing module. After conversion to an intermediate radio frequency, the channel gain is adjusted using a digitally controlled attenuator (corresponding to the gain adjustment points K _r1 ...K _rm in FIG. 4). The n channel signal paths are then divided into n*m channel signal paths using a multi-stage adder unit (shown in FIGS. 4 and 5) and the signals are finally fed to m feed sources on n antenna array planes. The scheme of one plane of the antenna array is shown in Fig.6. The signal from each feed source is split into 2 antenna elements so that the hardware system can implement n*2*m antenna elements and gain control is required for n*m channels. To reduce the area and complexity of hardware design, the feedback channel hardware design was discontinued at the RF interface level.

With the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented with software plus the necessary common hardware platform, and of course it can be implemented with hardware, but in many cases the first option is preferred. Based on such an understanding, the technical solutions proposed in the embodiments of the present invention can in general or, in other words, parts of them that improve the prior art, can be implemented as a software product, while the software product is stored on a storage medium (for example, on ROM/RAM, disk or optical disk) and includes a set of instructions that cause a terminal device (which may be a mobile phone, computer, server or network device, etc.) to execute the methods of various embodiments of the present invention.

The present invention further provides a power control device capable of implementing the above embodiments as well as additional embodiments. Points that have already been explained will not be repeated here. The term "module" as used herein can be a combination of software and/or hardware that can implement a predefined function. The devices described in the following embodiments may be implemented in software, but a hardware implementation or a combination of software and hardware implementation is also possible and should be considered.

Based on the above antenna array, the present invention further provides a device for power adjustment. Fig. 7 is a block diagram of the structure of a power control device according to the present invention; As shown in FIG. 7, the device includes a receiving module 70, a transmitting module 72, a determining module 74, and a control module 76.

The receiving module 70 is configured to receive, with the help of the assigned module-burst of n burst-modules, the base frequency signal transmitted by the base frequency processing unit.

The transmitter module 72 is configured to transmit the received base frequency signal to the base frequency processing unit through the antenna array plane branch adder unit and the antenna correction unit, where n is a positive integer, while the base frequency processing unit, n packet modules connected to the unit processing base frequencies, the antenna array plane branch adder unit connected to each of the n stack modules, and the antenna correction unit connected to the antenna array plane branch adder unit are located on the antenna array, and each of the n stack modules includes: a first gain adjustment unit and an antenna array element connected to the first gain adjustment unit.

The determining module 74 is configured to compare, by means of the base frequency processing unit, the power value of the received base frequency signal during testing with the value of the transmitted power during testing from the base frequency processing unit in order to determine the gain of the first gain adjustment unit in the assigned burst module according to the result comparison, and indicate the gain value to the first gain adjustment block.

The adjusting unit 76 is configured to adjust, with the n first gain adjusters according to the gain, the gain value of the first gain adjuster in a burst-module of n burst-modules other than the designated burst-module; so that n array elements in n packet modules have the same transmit power.

With the technical solutions proposed in the embodiments of the present invention, the problems with the large volume of equipment and the high cost of trunk lines in the prior art, caused by the need to have for each transmit channel in the AAS a corresponding feedback drop channel, and only one return drop channel is required connections, so that both hardware footprint and design complexity are reduced.

In the present invention, the receiving module 70 is further configured to receive a base frequency signal with a multi-stage adder unit; the transmitting module 72 is additionally configured to branch the base frequency signal into m signal transmission paths, and transmit signals along m paths to the antenna array elements through the second m gain adjustment units, each of the package modules additionally includes: m second gain adjustment units amplification and a multi-stage adder unit connected to m second gain control units.

The transmitter module 72 is further configured to transmit a signal along a k-th signal path out of the m received signal paths, using a tap element or an antenna feed line for an antenna array element, to the base frequency processing unit through the antenna array plane branch adder unit and the equalization unit antenna, wherein the k-th signal path corresponds to the k-th second gain adjuster of the m second gain adjusters.

The determining module 74 is further configured to compare, using the base frequency processing unit, the test signal power value received over the k-th signal path with the test power value transmitted from the base frequency processing unit to determine the gain for the k-th signal path. of the signal path according to the comparison result, and to indicate the gain value for the k-th signal path to the m second gain adjustment units.

The adjusting module 76 is further configured to adjust, with the m second gain adjusters, the gain values of the m signal paths according to the gain value for the kth signal path so that the m signal paths have the same gain, where k is a positive integer not greater than m.

It should be noted that the technical solutions of the above embodiments can be used together or separately, this is not limited in any way in the embodiments of the present invention.

The technical solutions mentioned above are described below with reference to the embodiments, but the technical solutions of the embodiments of the present invention are not limited to those described in any way.

Additional Embodiment 1:

Currently, AAC transmit power channel gain compensation is performed by pre-tabulating the two channel characteristics, i.e. channel gain during testing and changes in the gain of the transmitting channel with increasing and decreasing temperatures. After operating the AAS for a period of time, gain correction will not be possible when the transmit channel gain characteristics change.

The present invention uses an equalization channel used for antenna equalization as a feedback channel from a transmitting channel to realize closed loop power level control as shown in FIG.

For convenience of description, n channels are defined as antenna array plane channels, and m channels are defined as antenna element channels.

To form a feedback loop, one power measurement signal path can be started by tapping the signal from the position of the 1st element in n array planes, and the signals on the n loop tapping paths are sent through the array plane tapping adder block to the antenna correction channel, in in which the radio frequency signal is converted on the frequency scale down to the base frequency band. The receiving antenna correction channel is shown in FIG. The branch element can be selected according to the actual situation, and only one of the signal branch rules is given here. The measured transmit signal strength indicator (TSSI) value at the base frequencies of the transmit channel is compared with the measured power value in the form of a received signal strength indicator (RSSI) at the base frequencies obtained using the receiving antenna correction channel (the TSSI and RSSI measurement points are located, as shown in FIG. 4), and then dynamic transmission power control is performed.

The present invention adopts a method combining open-loop gain adjustment and closed-loop gain control, the gain of each subarray channel, i.e. the gain adjustment point K _r1 and the gain of each channel of the feed source in the sub-array are adjusted in open-loop mode, and the gain control of each channel of the sub-array is performed in closed-loop mode in time-sharing mode with the help of a spontaneous test signal source.

To implement open-loop and closed-loop gain control, the following steps must be performed.

In Fig.4 with the gain adjustment points (Kr, Ka) of the transmitting channel to be tested, not attenuated as references, the gains G _tx1 , G _tx2 ... G _txn from point A of the power measurement at the base frequencies in each transmitting channel to position 1 th antenna element on each antenna array plane are determined by testing and recorded in the AAC in tabular format. Taking the 1st element on each plane of the antenna array as a reference (one rule for selecting the reference element is defined in this document, but the configured rule can be changed according to actual requirements), the gains G _rx1 , G _rx2 ... G _rxn from the reference element to the position H-points for measuring the RSSI power index at the base frequencies in the correction channel are determined by testing and recorded in the AAC in a tabular format. The values of the gains G _bf11 , G _bf12 ... G _bf1m , G _bf21 , G _bf22 , ... G _bf2m , ... G _bfnm from the inputs to the multi-stage adder unit at point C of each channel to each element of the antenna array (see Fig.13) are determined from using testing and are recorded in the AAC in a tabular format.

Gain values G _txtemp1 , G _txtemp2 … G _txtempn for temperature compensation of characteristics from point A of power measurement at base frequencies in the downlink to the position of the 1st antenna element on each plane of the antenna array, and gain values G _rxtemp1 , G _rxtemp2 … G _rxtempn for temperature compensation of the gain characteristics from the tap elements to the position of the H-point of the RSSI power measurement through the antenna array plane tap combiner and the correction receive channel is determined by testing.

The gains of each stage in the transmit channel line are tuned in open loop mode to supply the desired transmit power to the antenna. The method includes the following steps:

1) Open loop gain tuning is performed for each antenna plane after AAS is started. The target transmit channel gain is defined as the theoretical desired gain value from the TSSI power measurement point to the antenna element position, so that the gain value required to adjust at the IF channel gain adjustment point Kg can be calculated from the target gain value transmitting channel, the value of the actual gain during testing and the value of the gain for temperature compensation. To simplify the description, the channel number is not indicated in the formula, and the gain of each channel of the antenna array plane can be calculated using the following formula:

,

,

where G _txad is the target value of the adjustable gain Kr of the transmit channel to the multi-stage adder, G _txtar is the target value of the transmit channel gain, G _tx is the test value of the gain Kg of the transmit channel of the plane of the antenna array from the signal processing block of the base frequency signal to the reference antenna element, and G _txtemp is the value of the deviation of the gain at the current temperature from the normal temperature at which the test was performed.

2) Gain compensation settings are provided for the link from the multi-stage combiner block to the antenna element channel, so that the power on the elements of each antenna array plane is equal to the power on the 1st element of the 1st array plane. The value of the gain from the block multi-stage adder to the antenna element is denoted by G _bf . The specific method involves the following steps: first, subtraction from the gain G _bf11 of the 1st element of the 1st plane of the antenna array, the values of the gains G _bf12 ... G _bf1m of other elements of the antenna array plane, and recording the values of the gain differences in the gain adjustment module of the elements between a multi-stage channel adder unit of the antenna array plane and the antenna array, so that the gains between the elements of the antenna array plane become matched; and then subtracting from the gain G _bf11 of the 1st element of the 1st plane of the antenna array the values of the gains G _bf21 , G _bf22 ... G _bf2m ... G _bfnm of the elements of other planes of the antenna array, and recording the values of the gain differences in the element gain adjustment module between the multi-stage adder channel of the antenna array plane and the antenna array, so that as a result, the gains of the elements from the planes of the antenna array become consistent. A method for implementing power matching between elements of different antenna array planes may further include selecting one element on each antenna array plane as a reference, aligning the gains of other array plane elements with the gain of the reference element, then selecting one array plane as the reference plane, and compensating the value of the difference between the gain of the reference element on the other plane of the antenna array and the gain of the reference element on the reference plane by means of an adjustable channel gain of the array plane. The algorithm for setting the gain values in the open loop mode is shown in Fig.11.

A correlative relationship is obtained between the measured baseband signal strength and the actual upstream and downstream antenna element powers, and the TSSI and RSSI baseband powers are measured to determine the actual transmit power of the respective element. This particular method includes the following steps:

1) The actual gain during testing from the antenna reference element on each plane of the antenna array to the point H of measuring the feedback signal power at the base frequencies is obtained from the gain parameter G _rx stored in advance in the AAC, the compensation value of the gain at the current temperature is obtained from the parameter temperature compensation of the gain G _rxtemp stored in advance in the AAC, and the value of the gain of the power feedback channel of the current reference element is calculated. To simplify the description, the channel number is not indicated in the formula, and the gain of each channel of the antenna array plane can be calculated using the following formula:

,

,

where G _rxad is the reference element power feedback channel gain at the current temperature, G _rx is the actual power feedback channel test gain, and G _rxtemp is the power feedback channel temperature compensation value.

The RSSI element transmit power (dBm) at the antenna port can be calculated from the power feedback channel gain at the current temperature using the formula:

,

,

where RSSI (dBNS) is the value of the ratio between the measured value of the power of the digital signal at the base frequencies and the total nominal power at the base frequencies.

The required gain for the transmit channel is obtained from the ratio between the antenna array plane element nominal power and the base frequency signal nominal power, and the actual transmitted power at the element position can be calculated from the required gain and the currently measured signal strength at the TSSI base frequencies using the formula :

,

,

where RSSI (dBNS) is the value of the ratio between the measured value of the digital signal power at the base frequencies and the total nominal power at the base frequencies, and G _txexp is the required gain from the base frequency processor to the element in the transmit channel.

Power control in the channels of the antenna in each plane of the sub-array in the time division mode is performed in a closed loop mode, and the signal at the base frequencies of the transmission channel reaches the elements of the antenna array plane through the transmission channel. Each antenna subarray outputs feedback signals from one of the reference elements, and the signals arrive at the base frequency processing unit after passing through the adder unit and the receiving correction channel. The gain value of each array plane channel is adjusted by comparing the measured forward base signal power TSSI and the measured RSSI feedback signal power at the antenna port so that the array plane transmit power matches the base frequency transmit power. Since the n channels of the antenna array plane are multiplexed into one equalization channel, and the equalization channel must also perform the antenna equalization function, it is necessary to perform the closed loop power measurement in turn at the time of the guard interval GP between the receiving and transmitting time slots in the data frame format. While the closed-loop power measurement is being performed on one channel of the array plane, the other channels are idle. Power measurement in closed loop mode in one channel of the antenna array plane involves two stages, i.e. test signal transmission and TSSI and RSSI power measurement, and gain adjustment of each channel is performed after completion of the closed loop power measurement in the array plane channel. Since the antenna correction function is triggered periodically, the acquisition of the array plane channel gains and phase information is carried out using the received antenna correction channel shown in FIG. to the transmitting channel at the time of the GP interval between the receiving and transmitting timeslots in data frame format. Therefore, the acquisition of antenna correction data and the acquisition of power measured in closed loop mode conflict with each other, and the acquisition of channel resources by the two operation modes of the correction channel needs to be ordered in time. In the closed loop power control process, the following work steps are provided (a flowchart of the control algorithm is shown in Fig. 9):

1) Two operating modes are configured for the antenna correction channel, i.e. power control mode and antenna correction mode. The software starts the power control mode and the antenna correction mode at regular intervals and both modes cannot be started at the same time.

2) First, the equalization channel is multiplexed into a power control mode in which a group of wideband frequency test signals are sent on the 1st channel of the array plane (i.e., subarray channel number i=1) to measure the transmit channel gain. Broadband test signals are sent at the time of the GP interval between the receiving and transmitting time slots to eliminate the influence of uplink and downlink service signals on the measured level of test signals.

3) The TSSI transmit power measurement signal and the RSSI feedback power measurement signal tapped from the antenna port are received, and then the transmission of the wideband test signals is stopped.

4) Test signals are sent sequentially on all channels of the array plane as described in step 2), and step 3) is repeated until data acquisition on all channels of the array planes is completed. In practical applications, it can be determined whether the sublattice channel number i is less than n, where n is equal to the number of channels of the array plane. When it is determined that sublattice channel number i is less than n, sublattice channel number i+1 is selected and steps 2) and 3) are repeated until it is determined that sublattice channel number i is not less than n.

5) The deviation value of the transmission channel gain is obtained according to the difference value between the measured transmit power of the TSSI signal and the RSSI feedback signal in each channel, and the deviation value is compensated at the IF gain adjustment point. As for the method for determining the deviation value of the transmission channel gain value and the method for compensating at the gain adjustment point, the above embodiments can be referred to, and these details are not repeated here.

6) The working mode of the antenna correction channel switches to the antenna correction mode and the antenna correction process starts.

Additional Embodiment 2:

In order to solve the problems of the absence of a spur feedback channel in a high frequency AAC base station, the inability to adjust the transmit power at the antenna port in a closed loop control, and the poor accuracy of the transmitted power, the present embodiment proposes a method for realizing closed loop power control by using a receiving antenna correction channel to meet the requirements of power control. In this embodiment, the AAS equipment includes 4 channels of antenna array planes, each antenna array plane contains 64 pairs of antenna elements, each pair consists of two antenna elements, and thus there are 4 * 64 * 2 = 512 antenna elements in total, such the structure is given to explain the method.

The base frequency processing module outputs the base frequency signals in 4 transmission paths, and measures the power of the base frequency data before it enters the intermediate radio frequency processing module, for example, at the TSSI power measurement point shown in FIG. The measured power values in 4 channels are called TSSI1, TSSI2, TSSI3 and TSSI4. After converting the 4-way channel signals to an intermediate radio frequency, the channel gain is adjusted using a digitally controlled attenuator (corresponding to the gain adjustment points K _r1 ... K _r4 in FIG. 4). Then, the 4 channel signal paths are divided into 4*64 channel signal paths by a 2-in-1 multi-stage adder block (shown in FIGS. 4 and 5), and the signal is finally fed to 64 feed sources on 4 antenna array planes. Gain adjustment can be made in each feeder source. Gain adjustment points are called K a ₁₁ , K a ₁₂ , ... K a _nm , where n=4 corresponds to the number of channels of the antenna array planes; and m=64 corresponds to the number of feeder sources for pairs of elements of each plane of the antenna array. The scheme of one plane of the antenna array is shown in Fig.4, and the position of the points Ka is shown in Fig.10. Each feed source is connected to 2 antenna elements, the 1st element on the plane of the array acts as a reference element, and the branch element is placed next to the reference element to act as a sampling point for the feedback signal about the transmitted power of the reference element. Each of the 4 antenna array planes has a tap element, the feedback signal from which is received and summed over the corresponding antenna array plane, as shown in FIG. The signal is then fed into the receive antenna equalization channel to shift the RF signal to the base frequencies, as shown in FIG. Finally, the RSSI power measurement of the feedback signal is performed at base frequencies.

To accurately measure the power of an element at an antenna port, it is first necessary to characterize the gain of the transmit channel and the feedback branch channel.

The transmitting channel gain is divided by the channel gain from the base frequency processing unit to the reference element on the antenna array plane and by the channel gain from the base frequency processing unit to other elements on the antenna array plane. Here, testing of the channel gain from the base frequency processing unit to the reference element on the plane of the antenna array in the transmission channel is first described. Gain specifications include channel gain measured during testing at normal temperature and gain changes with temperature rise and fall measured during special testing. For the two-channel case, 4 gain characteristic parameter files are given at normal temperature and at changed temperatures. The normal temperature transmit link gain file is called TxGain.txt, and the normal temperature spur feedback gain file is called RxGain.txt. The test information placed in the normal temperature gain file includes a channel index, a test frequency value index, a temperature sensor signal value at the time of testing, and gain values during the test at various frequency sweep points in different channels. The TxTempGain.txt TxTempGain.txt TxTempGain.txt file is named RxTempGain.txt. The test information placed in the temperature gain change file includes a channel index, a test frequency value index, a temperature step index value from a temperature sensor, and gain compensation values at different temperature step index values at different frequency sweep points in different channels. The compensation values are the values of the deviations of the gain at various temperatures from the reference value at normal temperature.

Since it cannot be guaranteed that the channels of the reference element and other elements in the array plane after the multi-stage adder will be fully matched, it is necessary to test the gains from the channel inputs to the array plane from the multi-stage adder unit and to the outputs from the elements on the array accordingly. It is necessary to test the gains There are 64 channels per array plane, and thus a total of 256 channel gains on 4 array planes need to be tested. The relative gain difference is obtained by comparing the channel gain of each element with the channel gain of the reference element, and finally the gain compensation value is written to the TxKaGain.txt file for use in adjusting the feed source gain for each element.

There are three stages in the AAS power control process: 1. Arranging the parameters of the gain control points for the 4 array plane channels and 256 channels of feeder sources for open loop mode so that the transmitted power of each element is largely accurate; 2. Comparison of the measured TSSI transmit power and the feedback received RSSI power with the antenna element; and 3. Adjusting the gains of the 4 channels of the array plane in closed loop mode according to the measured powers so as to further improve antenna power accuracy and tracking adjustment of channel gain changes.

In the first stage, setting the gains for the open loop mode specifically includes the following steps:

1) Open loop gain tuning is performed on each antenna plane after AAS is started. The target transmit channel gain is defined as the theoretically desired gain value from the TSSI power measurement point to the antenna element, so that the gain value required to adjust at the gain adjustment point Kr in the 4 channels of the array plane can be calculated from the target gain value transmit channel gain, actual test gain value, and temperature compensation gain value. To simplify the description, the channel number is not indicated in the formula, and the gain of each channel of the antenna array plane can be calculated using the following formula:

,

,

where G _txad is the target value of the adjustable transmit channel gain Kr of the transmit channel to the multi-stage adder block, G _txtar is the target value of the transmit channel gain, and G _tx is the test-obtained value of the transmit channel gain of the array plane from the base frequency signal processing block to the reference element antennas. Since the value of G _tx is obtained from tests at normal ambient temperature, and the value of G _txtemp is the deviation of the gain value at the current temperature from its value during tests at normal temperature, the current temperature according to the temperature sensor and the temperature according to the temperature sensor recorded during testing G _tx are queried in the file TxTempGain.txt to index the gain compensation value at the corresponding temperature, so that the difference between two gain compensation values can be calculated to obtain the compensation value for the changing gain between the two temperature values, and the test gain at normal temperature can be corrected to obtain the calculated value of the gain at the current temperature.

2) Gain compensation settings are provided for the link drawn from the multi-stage combiner block to the antenna element channel, so that the power on the elements of each antenna array plane is equal to the power in the 1st element of the 1st array plane. The value of the gain from the block multi-stage adder to the antenna element is denoted by G _bf . The specific method involves the following stages: first, subtraction from the gain G _bf11 of the 1st element of the 1st plane of the antenna array, the values of the gains G _bf12 ... G _bf1m (m=64) of other elements of the antenna array plane, and writing the values of the gain differences to the module adjusting the element gain between the multi-stage antenna array channel adder unit and the antenna element so that the gains between the elements of the antenna array plane become matched; and then subtracting from the gain G _bf11 of the 1st element of the 1st plane of the antenna array the values of the gains G _bf21 , G _bf22 ... G _bf2m ... G _bfnm (n=4, m=64) of the elements of other planes of the antenna array, and recording the values gain differences to the element gain adjusting module between the multi-stage antenna array channel adder unit and the antenna element, so that as a result, the gains of the elements on the antenna array planes become consistent. A method for implementing power matching between elements of different antenna array planes may further include selecting one element on each antenna array plane as a reference, aligning the gains of other array plane elements with the gain of the reference element, then selecting one array plane as the reference plane, and compensating for a difference value between a gain of a reference member of another array plane and a gain of a reference member on the reference plane by means of an adjustable array channel gain of the array plane.

In the 2nd stage, a correlative relationship is obtained between the measured baseband signal strength and the actual uplink and downstream antenna element powers, and the TSSI and RSSI baseband powers are measured to determine the actual transmit power of the respective element. This particular method includes the following steps:

1) The actual gain during testing from the antenna reference element on each plane of the antenna array to the point H of measuring the feedback signal power at the base frequencies is obtained from the gain parameter G _rx stored in advance in the AAC, the compensation value of the gain at the current temperature is obtained from the parameter temperature compensation of the gain G _rxtemp stored in advance in the AAC, and the value of the gain of the power feedback channel of the current reference element is calculated. To simplify the description, the channel number is not specified in the formula, and the gain of each channel of the antenna array plane can be calculated using the following formula: G _rxad = G _rx + G _rxtemp

where G _rxad is the power feedback channel gain of the reference element at the current temperature, G _rx is the actual value of the power feedback channel gain during testing, and G _rxtemp is the temperature compensation value of the power feedback channel.

The RSSI element transmit power (dBm) at the antenna port can be calculated from the power feedback channel gain at the current temperature using the formula:

,

,

where RSSI (dBNS) is the value of the ratio between the measured value of the power of the digital signal at the base frequencies and the total nominal power at the base frequencies.

2) The required gain for the transmit channel is obtained from the ratio between the nominal power of the antenna array plane element and the nominal signal power of the base frequencies, and the actual transmitted power at the position of the element can be calculated from the required gain and the current measured signal strength at the TSSI base frequencies with using the formula:

,

,

where RSSI (dBNS) is the value of the ratio between the measured value of the digital signal power at the base frequencies and the total nominal power at the base frequencies, and G _txexp is the required gain from the base frequency processor to the element in the transmit channel.

The 3rd stage performs closed loop power measurement and gain adjustment. The power control in the antenna channels on each sub-array plane in the time division mode is performed in a closed loop mode, and the signal at the base frequencies of the transmit channel reaches the elements of the antenna array plane through the transmit channel. Each antenna subarray outputs feedback signals from one of the reference elements, and the signals arrive at the base frequency processing unit after passing through the adder unit and the receiving correction channel. The gain value of each array plane channel is adjusted by comparing the measured forward base signal power TSSI and the measured RSSI feedback signal power at the antenna port so that the array plane transmit power matches the base frequency transmit power. Since the n channels of the antenna array plane are multiplexed into one equalization channel, and the equalization channel must also perform the antenna equalization function, it is necessary to perform the closed loop power measurement in turn at the time of the guard interval GP between the receiving and transmitting time slots in the data frame format. While the closed loop power measurement is being performed on one channel on the plane of the antenna array, the other channels are idle. Power measurement in closed loop mode in one channel of the antenna array plane involves two stages, i.e. test signal transmission and TSSI and RSSI power measurement, and gain adjustment of each channel is performed after completion of the closed loop power measurement in the array plane channel. Since the antenna correction function is triggered periodically, the acquisition of the array plane channel gains and phase information is carried out using the received antenna correction channel shown in FIG. to the transmitting channel at the time of the GP interval between the receiving and transmitting timeslots in data frame format. Therefore, the acquisition of antenna correction data and the acquisition of power measured in closed loop mode conflict with each other, and the acquisition of channel resources by the two operation modes of the correction channel needs to be ordered in time. The closed loop power control process has the following specific work steps:

1) Two operating modes are configured for the antenna correction channel, i.e. power control mode and antenna correction mode. The software starts the power control mode and the antenna correction mode at regular intervals and both modes cannot be started at the same time.

2) In the power control mode, a group of wideband test signals is sent on the 1st channel of the antenna array plane to measure the gain of the transmitting channel. Broadband test signals are sent at the time of the GP time interval between the receiving and transmitting time slots to eliminate the influence of upstream and downstream service signals on the measured level of test signals.

3) The TSSI transmit power measurement signal and the RSSI feedback power measurement signal from the antenna port are received, and then the transmission of the wideband test signals is stopped.

4) Test signals are sent sequentially on all channels of the array plane as described in step 2), and step 3) is repeated until data acquisition on all channels of the array planes is completed.

5) The deviation value of the transmission channel gain is obtained according to the difference value between the measured transmit power of the TSSI signal and the RSSI feedback signal in each channel, and the deviation value is compensated at the IF gain adjustment point.

6) The working mode of the antenna correction channel switches to the antenna correction mode and the antenna correction process starts.

7) The above steps start the first cycle of closed loop power control and antenna correction, and steps 2) to 6) are repeated when the system software timer starts the next cycle of closed loop power control and antenna correction, thereby performing full cycle.

Additional Embodiment 3:

The antenna array channel hardware in the present invention includes n*m paired element channels. In a traditional 5G base station, the multi-stage adder block in the hardware channel can be removed, so that n * 1 channels of paired elements are formed. In a traditional 5G base station, it is possible to design a feedback signal tap point at the output of a power amplifier before each element, and input the base frequencies through a tap combiner and a correction receive channel to perform RSSI power measurement. The modified hardware architecture can still implement power control using the method described in the present invention. Specific stages of implementation include:

testing to obtain gains and gain temperature compensation values for n transmission channels;

testing to obtain the gains and temperature compensation values of the gains for the n receiving equalization channels, since there are n tapping points of the feedback signals;

adjusting the power gain mapping from the base frequency processing unit TSSI point to the antenna element to obtain the TSSI power index (dBm) at the antenna element, and adjusting the power gain mapping from the antenna element to the base frequency RSSI power measurement point according to 2nd steps to obtain the power index RSSIx (dBm) at each antenna element, where x indicates the serial number of the channel and x = 1, 2 ... n;

setting adjustable gains in n paths in open loop mode to ensure that the value of the transmitted power of the element approaches the desired power value; and

start power measurement and control in closed loop mode to perform n-way gain adjustment.

Additional Embodiment 4:

In this embodiment of the present invention, the transmission channel gain setting includes an open-loop mode process and a closed-loop mode process. The block diagram of the tuning algorithm in the open loop mode is shown in Fig.11, in which the adjustable gain of the array plane channel is first tuned by adjusting the gain Kg of each channel of the subarray in the open loop mode from the channel of the 1st plane of the antenna array (i.e., number sublattice channel i=1); and then adjusting the adjustable gain of each array channel source on the array plane, i.e. adjusting the gain Ka of the grating source channel in the subarray in open loop mode from the grating source channel number j=1 until all the grating plane channels and all the grating source channels in each subarray are tuned. In practical applications, it can be determined whether the sublattice channel number i is less than n, where n is equal to the number of channels of the array plane. When it is determined that the sublattice channel number i is less than the value n, selection of the sublattice channel number i+1 is performed, and the step of adjusting the gain of each sublattice channel in the open loop mode is repeated until it is determined that the sublattice channel number i is not less than the value n. In practical applications, it can be determined whether the array source channel number j is less than m, where m is equal to the number of array source channels. When it is determined that the grating source channel number j is less than the value m, the grating source channel number j+1 is selected, and the step of adjusting the gain of each grating source channel in the sub-array in the open loop mode is repeated until it is determined that the grating source channel number j not less than m.

After a full cycle is completed, the gains are tuned in n*m paths in open loop mode. A flowchart of the closed loop power control algorithm is shown in Fig. 9, in it, after reaching the time point for closed loop power control, the software first selects the multiplexing mode of the receiving equalization channel as the closed loop power control mode, then selects the channel 1 of the array plane and feeds the KA signal sequence (antenna correction sequence) from the signal source in the channel base frequency processing unit to measure the TSSI 1 / RSSI power indicators at the base frequencies, then stops transmitting the AK signal sequence after the power measurement is completed. After the power information of all channels has been sequentially collected, the channel gain deviation is calculated, and finally the gain adjustment is completed.

Since the amplitude-phase characteristic of the channel will change with each adjustment of the transmitting channel gain, then the antenna correction must be carried out again, the start time of the first antenna adjustment is selected after the start of the AAS and the completion of the first adjustment of the gain factors in the closed loop mode, after which the antenna correction function is started according to closed-loop gain control settings. If the gain has been properly adjusted in closed loop mode and the ambient temperature does not change significantly, the transmit channel gain for each element will be at a relatively stable value for a long time, and the power control in closed loop mode will not start for a long time. However, since antenna array plane beamforming is much more sensitive to phase characteristics than to array channel gain characteristics, this condition cannot guarantee that the channel phase characteristics also satisfy beamforming requirements, and therefore, antenna equalization needs to be triggered periodically. The software needs to be prevented from starting a power measurement in closed loop mode when the antenna is being equalized, i.e. the two functions are mutually exclusive for any point in time.

When the difference between the TSSI and RSSI power measurements obtained from the closed loop power measurement is too large and reaches the exception threshold, the system is considered to have an exception condition, which may be a software exception, a transmit channel exception, or a reverse branch channel exception. connections. At this point, the closed loop mode can be stopped regardless of the reasons, and the channel gain adjustment can be performed in the open loop mode. If an exception occurs in the feedback channel, this method can protect the RF power amplifier and stabilize the transmitted power.

Additional Embodiment 5:

In this embodiment of the present invention, the gain of each pair of elements needs to be tuned in an open loop mode on the antenna subarray plane to ensure that the gains of the elements of the subarray plane are consistent, and at the same time, the gains of the elements within the plurality of array planes need to be corrected. Gain compensation adjustments are carried out on the channel from the input of the multistage adder unit to the antenna element, so that the equality of the gain factors on the elements of different planes of the antenna array is ensured.

Gain equalization can be implemented using the following two methods: the first method involves selecting one element on each array plane as the reference element, aligning the other elements of each antenna array plane with the array plane reference element by adjusting the element's feed source variable gain, and then equalization of gain differences between grating planes using gain adjustment points in the digital signal processing channel. The second method involves selecting from a plurality of array planes on the AAS one element on one array plane as a reference element, while all other elements are considered non-reference elements, and calculating the gain difference value by comparing with the reference element to compensate for the deviation value by adjusting the gain of the feeder source of the element, and thus ensure that the gains on different planes of the antenna array become aligned.

Additional Embodiment 6:

In this embodiment of the present invention, the power tapping to the antenna port can be realized by tapping the signal from the antenna element or by tapping the signal from the antenna feed line connected to the element. In both methods, closed-loop power control can be implemented. As shown in FIG. 12, element feedback branching can help reduce the design complexity of the antenna element layout, but the band gain consistency performance is relatively poor. Feedback signal branching from the antenna feed line results in a good band gain constancy characteristic, but the design of the connecting lines becomes relatively complex.

According to an embodiment of the present invention, there is further provided a storage medium with a computer program stored therein, the computer program during its execution causing an implementation of one of the above methods.

If necessary, in this embodiment, the storage medium may be configured to store program code for performing the following steps:

In step S1, the designated burst-module of n burst-modules receives the base frequency signal sent from the base frequency processing unit, and transmits the received base frequency signal to the base frequency processing unit through the array plane branch adder unit and the antenna correction unit, where n is a positive integer, wherein the base frequency processing unit, n burst modules connected to the base frequency processing unit, an array plane branch adder unit connected to each of the n burst modules, and an antenna correction unit connected to the plane branch adder unit arrays are located on the antenna array, and each of the n package-modules includes: the first gain adjustment unit and an antenna array element connected to the first gain adjustment unit.

In step S2, the base frequency processing unit compares the received power value of the base frequency signal during testing with the transmitted power value from the base frequency processing unit during testing to determine the gain of the first gain adjustment unit in the assigned burst module according to the result of the comparison, and indicating a gain value to the first gain adjustment block.

In step S3, the n first gain adjusters are adjusted according to the gain, the gain of the first gain adjuster in the burst-module of the n burst-modules other than the assigned burst-module; so that n array elements in n packet modules have the same transmit power.

Optionally, in this embodiment, the storage medium may include, but is not limited to, a USB flash drive, read-only memory (ROM), random access memory (RAM), portable hard disk drive, disk or optical disk, or any other storage medium that can store program code.

If necessary, specific examples in this embodiment may refer to the examples described in the above embodiments and alternative embodiments, and they will not be described here again.

Obviously, a person skilled in the art will understand that the modules and steps described above in the embodiments of the present invention may be implemented using a general purpose computing device, may be embedded in a dedicated computing device, or distributed over a network that consists of multiple computing devices; and, alternatively, they may be implemented using executable program code on a computing device such that they may be stored on a storage medium and executed by the computing device, in some cases the steps shown or described may be performed in a different order from that shown here, or they may be made into different integrated circuit modules, respectively, or a plurality of modules or method steps can be made into a single integrated circuit module, this can be implemented. Thus, the present invention is not limited to any particular combination of hardware and software.

The above are merely embodiments of the present invention and are not intended to limit the embodiments of the present invention. Specialists in this field of technology can make various changes and deviations in the embodiments of the present invention. Any amendments, equivalent substitutions, improvements, etc., lying within the principle of the embodiments of the present invention, are included in the scope of legal protection relating to the embodiments of the present invention.

Claims (48)

1. An antenna array containing a base frequency processing unit, n packet modules, a branch adder unit of the antenna array plane and an antenna correction unit, each of the n packet modules includes a first gain adjustment unit and an antenna array element connected to the first unit gain adjustment, and the assigned package-module of n package-modules is connected to the base frequency processing unit and to the antenna array plane branch adder unit, and it is configured, after receiving the base frequency signal transmitted by the base frequency processing unit, to transmit the received base frequency signal to the processing unit base frequencies through the antenna array plane branch adder unit and the antenna correction unit, where n is a positive integer; the base frequency processing unit is configured to compare the received power value of the base frequency signal during testing with the transmitted power value from the base frequency processing unit during testing to determine the gain of the first gain adjustment unit in the assigned packet module according to the result of the comparison, and indicate a gain value to the first gain adjustment unit; and The n first gain adjusters are configured to adjust, according to the gain, the gain of the first gain adjuster in the packet module of the n packet modules other than the assigned packet module, so that the n antenna array elements in the n packet modules have the same power output. 2. The antenna array according to claim 1, wherein the n first gain adjustment units are further configured to adjust, by means of the first gain adjustment unit of the assigned packet module, the gain of the antenna array element corresponding to the first gain adjustment unit, and receive , using the other first gain adjustment unit, the first gain difference value recorded by the base frequency processing unit, and adjust the transmit power of the antenna array element corresponding to the other first gain adjustment unit according to the first gain difference value, so that the antenna array elements in n packet modules have the same transmit power, wherein the other first gain adjuster means the first gain adjuster among the n first gain adjusters other than the first gain adjuster in the assigned packet module, and the difference value of the first gain means the difference value between the gain of the first adjuster the gain in the assigned packet-module and the gain of the other first gain adjuster. 3. The antenna array according to claim 1, in which each module package additionally contains m second gain adjustment units and a multi-stage adder unit, which is connected to m second gain adjustment units, and is configured to receive a base frequency signal, divide the base signal frequencies between the m signal paths and transmit the signals along the m signal paths to the antenna array elements through the m second gain adjustment units; the antenna array element is additionally configured to transmit a signal along the k-th signal path from among the m received signal paths, using a branch element or an antenna feed line for the antenna array element, to the base frequency processing unit through the antenna array plane branch adder unit and the correction unit an antenna, wherein the k-th signal path corresponds to the k-th second gain adjuster of the m second gain adjusters; the base frequency processing unit is configured to compare the power value of the test signal received via the k-th signal path with the value of the power transmitted during testing from the base frequency processing unit to determine the gain for the k-th signal path according to the comparison result and indicate the value a gain for the k-th signal path to the m first gain adjustment units; and The m second gain adjusters are configured to adjust the gain values of the m signal paths according to the gain value for the kth signal path, so that the m signal paths have the same gain, where k is a positive integer not greater than m . 4. The antenna array according to claim 1, in which the m second gain adjustment units are additionally configured to adjust the gain along the k-th signal path using the k-th second gain adjustment unit, and receive, using another second adjustment unit gain value, the second gain difference value recorded by the base frequency processing unit, and adjust the signal gain corresponding to the other second gain adjustment unit according to the second gain difference value, so that m signal paths have the same gain, wherein the other second gain adjuster means the second gain adjuster of the m second gain adjusters other than the second gain adjuster corresponding to the k-th signal transmission path, and the second gain difference value means the difference between the gain a second gain adjustment unit corresponding to the k-th signal transmission path, and a gain of another second gain adjustment unit. 5. The antenna array of claim 1, wherein the base frequency processing unit is further configured to adjust the adjustable gain of the first gain adjustment unit according to at least the following formula:

, where G _txad is the adjustable gain, G _txtar is the target gain for the transmit channel between the base frequency processor and the antenna array element, G _tx is the target gain for the transmit channel, and G _txtemp is the value of gain deviation due to temperature difference between current temperature and normal temperature. 6. A method for adjusting power, which includes the following steps: receiving by the designated burst-module of n burst-modules the base frequency signal sent from the base frequency processing unit, and transmitting the received base frequency signal to the base frequency processing unit through the array plane branch adder unit and the antenna equalization unit, where n is a positive integer , wherein the base frequency processing unit, n packet modules connected to the base frequency processing unit, the array plane branch adder unit connected to each of the n packet modules, and the antenna correction unit connected to the array plane branch adder unit are located on an antenna array and each of the n package modules includes a first gain adjustment unit and an antenna array element connected to the first gain adjustment unit; comparison by the base frequency processing unit of the received power value of the base frequency signal during testing with the transmitted power value from the base frequency processing unit during testing to determine the gain of the first gain adjustment unit in the assigned packet module according to the comparison result and specify the gain value of the first gain control unit; and adjusting, n first gain adjusters according to the gain, the gain of the first gain adjuster in the burst-module of the n burst-modules other than the assigned burst-module; so that n array elements in n packet modules have the same transmit power. 7. The power adjustment method according to claim 6, wherein the step of adjusting, by the first gain adjustment units according to the gain, the gain of the first gain adjustment unit in the packet module of the n packet modules, in addition to the assigned packet module, so that n antenna array elements in n packet modules have the same transmit power, involves the steps: adjusting, by the first gain adjusting unit of the assigned packet module, the gain of the antenna array element corresponding to the first gain adjusting unit; and receiving, with the other first gain adjustment unit, the first gain difference value recorded by the base frequency processing unit, and adjusting the transmit power of the antenna array element corresponding to the other first gain adjustment unit according to the first gain difference value, so that the antenna elements the arrays in n packet modules have the same transmit power, wherein the other first gain adjuster means the first gain adjuster among the n first gain adjusters other than the first gain adjuster in the assigned packet module, and the difference value of the first gain means the difference value between the gain of the first adjuster the gain in the assigned packet-module and the gain of the other first gain adjuster. 8. The power adjustment method according to claim 6, wherein the step of receiving, by the designated burst-module of n burst-modules, the base frequency signal transmitted by the base frequency processing unit, and transmitting the received base frequency signal to the base frequency processing unit via the plane branch adder unit antenna array and antenna correction unit provides: receiving a base frequency signal by a multi-stage adder unit, branching the base frequency signal into m signal transmission paths, and transmitting m signal paths to the antenna array elements through m second gain adjustment units, each module package additionally containing m second gain adjustment units and a multi-stage adder unit that is connected to the m second gain adjustment units; transmission by the antenna array element along the k-th path of a signal from among the m paths of the received signals, using a branch element or an antenna feed line for the antenna array element, to the base frequency processing unit through the antenna array plane branch adder unit and the antenna correction unit, while k the th signal path corresponds to the k-th second gain adjuster of the m second gain adjusters; and The method further provides: comparison by the base frequency processing unit of the test signal power value received in the k-th signal path with the value of the test power transmitted from the base frequency processing unit in order to determine the gain for the k-th signal path according to the comparison result, and specifying the gain value for k-th signal path m second gain adjustment units; and adjusting the second m gain adjusters to the gain values of the m signal paths according to the gain value for the kth signal path so that the m signal paths have the same gain, where k is a positive integer not greater than m. 9. The power adjustment method according to claim 8, wherein the step of adjusting the second m gain adjusters to the gain values of the m signal paths according to the gain value of the k-th signal path so that the m signal paths have the same gain, comprises stages: adjusting the second k-th gain adjustment unit of the gain value for the k-th signal path; and receiving, by the other second gain adjustment unit, the second gain difference value recorded by the base frequency processing unit, and adjusting the signal gain corresponding to the other second gain adjustment unit according to the second gain difference value, so that in m transmission paths signals have the same gain, wherein the other second gain adjuster means the second gain adjuster of the m second gain adjusters other than the second gain adjuster corresponding to the k-th signal transmission path, and the second gain difference value means the difference between the gain a second gain adjustment unit corresponding to the k-th signal transmission path, and a gain of another second gain adjustment unit. 10. The power adjustment method according to claim 6, wherein, before the designated burst-module of n burst-modules receives the base frequency signal transmitted by the base frequency processing unit, the method further comprises: adjustment by the base frequency processing unit of the variable gain of the first gain adjustment unit according to at least the following formula:

, where G _txad is the adjustable gain, G _txtar is the target gain for the transmit channel between the base frequency processor and the antenna array element, G _tx is the target gain for the transmit channel, and G _txtemp is the value of gain deviation due to temperature difference between current temperature and normal temperature. 11. A power control device, comprising: a receiving module, configured to receive, with the assigned module packet from among the n packet modules, the base frequency signal transmitted by the base frequency processing unit; a transmitting module configured to transmit the received base frequency signal to the base frequency processing unit through the antenna array plane branch adder unit and the antenna correction unit, where n is a positive integer, wherein the base frequency processing unit, n packet modules connected to the unit processing base frequencies, the antenna array plane branch adder unit connected to each of the n stack modules, and the antenna correction unit connected to the antenna array plane branch adder unit are located on the antenna array, and each of the n stack modules includes the first block gain adjustment and an antenna array element connected to the first gain adjustment unit; a determining module configured to compare, using the base frequency processing unit, the power value of the received base frequency signal during testing with the transmitted power value from the base frequency processing unit during testing in order to determine the gain of the first gain adjustment unit in the assigned packet - the module according to the result of the comparison, and indicate the gain value to the first gain adjustment unit; and adjusting module configured to adjust, by means of the n first gain adjusters and according to the gain, the gain of the first gain adjuster in the burst-module of n burst-modules other than the assigned burst-module, so that n antenna elements the arrays in n packet modules have the same transmit power. 12. The power control device according to claim 11, in which the receiving module is further configured to receive the base frequency signal using a multi-stage adder unit; the transmitting module is additionally configured to branch the base frequency signal into m signal transmission paths and transmit signals along m paths to the elements of the antenna array through m second gain adjustment units, each module package additionally containing m second gain adjustment units and a multi-stage adder unit , which is connected to m second gain control units; the transmitting module is additionally configured to transmit a signal along the k-th signal path from among m signal paths, using a branch element or an antenna feed line for an antenna array element, to the base frequency processing unit through the antenna array plane branch adder unit and the antenna correction unit , wherein the k-th signal path corresponds to the k-th second gain adjuster of the m second gain adjusters; the determining module is additionally configured to compare, using the base frequency processing unit, the test signal power value received via the k-th signal path with the value of the test power transmitted from the base frequency processing unit in order to determine the gain for the k-th signal path according to the comparison result, and specifying a gain value for the k-th signal path to m second gain adjustment units; and the adjusting module is further configured to adjust, with the m second gain adjusters, the gain values of the m signal paths according to the gain value for the kth signal path, so that the m signal paths have the same gain, where k is a positive integer not greater than m. 13. A storage medium with a computer program stored therein, and the computer program is configured to be executed to implement the above methods according to claims. 6-10.

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