CN112864624B - Method and device for adjusting and controlling received wave beam and terminal antenna system - Google Patents
Method and device for adjusting and controlling received wave beam and terminal antenna system Download PDFInfo
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- CN112864624B CN112864624B CN202011627539.1A CN202011627539A CN112864624B CN 112864624 B CN112864624 B CN 112864624B CN 202011627539 A CN202011627539 A CN 202011627539A CN 112864624 B CN112864624 B CN 112864624B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
Abstract
The invention provides a method, a device and a terminal antenna system for adjusting and controlling a received beam, wherein the method comprises the following steps: receiving a first receiving signal and a second receiving signal sent by a first phased array antenna and a second phased array antenna; in the scheduling time slot, demodulating and decoding the first receiving signal, and controlling a second phased array antenna to transform the beam direction so as to measure the transformed second receiving signal; in an unscheduled time slot, controlling a first phased array antenna and a second phased array antenna to transform the beam direction so as to measure a transformed first receiving signal and a transformed second receiving signal; and obtaining an optimal wave beam according to the measurement result, and controlling the first phased array antenna and the second phased array antenna to adjust the wave beam direction according to the optimal wave beam. According to the scheme, beam scanning can be rapidly completed on the premise of not influencing signal demodulation, the optimal receiving beam is found, the optimal receiving beam can be rapidly aligned with the base station beam, and influence on signal quality is avoided.
Description
Technical Field
The present invention relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for adjusting and controlling a received beam, and a terminal antenna system.
Background
A 5G network is a digital cellular network in which the service area covered by a provider is divided into a number of small geographical areas known as cells. All 5G wireless devices in a cell communicate via radio waves with local antenna arrays and low power autonomous transceivers (transmitters and receivers) in the cell. Local antennas are connected to the telephone network and the internet through high bandwidth fiber or wireless backhaul connections, and as with existing handsets, as users traverse from one cell to another, their mobile devices will automatically "switch" to the antenna in the new cell.
In 5G-NR communications, antenna arrays are used by both the base station and the end user, which requires the receive beam of the end user to be aligned with the transmit beam of the base station to achieve optimal communication quality. Beam alignment of the end user and the base station is done during the initial access phase of the communication. In the existing scheme, after initial access, a terminal starts beam scanning of a receiving antenna array in an unscheduled time slot to obtain an optimal terminal receiving beam, so that the optimal terminal receiving beam is most matched with a base station beam.
However, the non-scheduled time slots are interspersed in the scheduled time slots, and the scheduled time slots need to demodulate data and cannot change the antenna beam direction for beam scanning, so the whole beam scanning process time is lengthened, the optimal receiving beam cannot be aligned with the base station beam quickly, and the signal quality is further deteriorated. Therefore, a receiving beam adjusting and controlling method is needed, which can quickly complete beam scanning, find an optimal receiving beam, and quickly align the optimal receiving beam with a base station beam on the premise of not affecting signal demodulation.
Disclosure of Invention
The invention aims to provide a method, a device and a terminal antenna system for adjusting and controlling received beams.
The technical scheme provided by the invention is as follows:
the invention provides a method for adjusting and controlling a receiving beam, which comprises the following steps:
s1, receiving a first receiving signal and a second receiving signal sent by a first phased array antenna and a second phased array antenna;
s2, demodulating and decoding the first receiving signal in a scheduling time slot, and controlling the second phased array antenna to transform the beam direction so as to measure the transformed second receiving signal;
s3, in a non-scheduling time slot, controlling the first phased array antenna and the second phased array antenna to transform the beam direction so as to measure the transformed first receiving signal and the transformed second receiving signal;
and S4, obtaining an optimal wave beam according to the measurement result, and controlling the first phased array antenna and the second phased array antenna to adjust the wave beam direction according to the optimal wave beam in the next scheduling time slot.
In the prior art, a terminal starts beam scanning of a receiving antenna array in an unscheduled time slot to obtain an optimal beam, and demodulates data in a scheduled time slot. However, since the non-scheduled time slots are interspersed among the scheduled time slots and the beam scanning cannot be performed by changing the antenna beam direction when demodulating data, the whole beam scanning process is lengthened.
According to the scheme, at least two receiving antennas are adopted, when single-stream receiving is carried out, the two phased array antennas receive the same transmitting signal content, so that in a scheduling time slot, only a first receiving signal of a first phased array antenna can be demodulated and decoded, and beam scanning is carried out on a second phased array antenna; in the non-scheduling time slot, the first phased array antenna and the second phased array antenna can be subjected to beam scanning at the same time, so that the system can track the change of a wireless channel quickly, a better beam is selected quickly, the optimal receiving beam is aligned with the base station beam quickly, and the quality of a communication signal is prevented from being influenced.
Further, after step S1, the method further comprises the steps of:
performing signal quality measurements on the first received signal and the second received signal of a scheduled time slot with no degradation in signal quality;
judging whether the signal quality is deteriorated according to the measurement result;
if yes, executing steps S2 to S4;
if not, judging whether the current time slot is in a scheduling time slot;
if the current time slot is in a scheduling time slot, controlling the first phased array antenna and the second phased array antenna to adjust the beam direction according to the optimal beam judged last time, demodulating and decoding the first receiving signal and the second receiving signal, measuring the current first receiving signal and the current second receiving signal, and continuously judging whether the signal quality is deteriorated according to the measurement results of the current first receiving signal and the current second receiving signal;
and if the current time slot is the non-scheduling time slot, executing the step S3, and measuring the current first receiving signal and the current second receiving signal.
Specifically, the signal quality measurement is performed on the first received signal and the second received signal in the scheduling time slot where the signal quality is not degraded, whether the signal quality is degraded or not can be judged according to the measurement result, if the signal quality is degraded, the method can be adopted to demodulate and decode only the first received signal of the first phased array antenna in the scheduling time slot, perform beam scanning on the second phased array antenna, and perform beam scanning on the first phased array antenna and the second phased array antenna simultaneously in the non-scheduling time slot to select and adjust the optimal beam, so as to ensure that the alignment of the optimal beam and the base station beam is rapidly realized.
If the signal quality is not degraded, the first phased array antenna and the second phased array antenna can be controlled to adjust the beam direction according to the optimal beam judged at the last time, the first receiving signal and the second receiving signal are demodulated and decoded, and meanwhile, the current first receiving signal and the current second receiving signal are measured, and whether the signals are degraded or not is judged; and if the current time slot is in the non-scheduling time slot, controlling the first phased array antenna and the second phased array antenna to change the beam direction according to the operation mode of the normal non-scheduling time slot so as to scan the beams of the first phased array antenna and the second phased array antenna.
Further, before step S1, the method further includes the steps of:
controlling the first phased array antenna and the second phased array antenna to transform beam directions;
traversing all beam directions of a base station antenna and all beam directions of the first phased array antenna and the second phased array antenna, and calculating the signal quality of each beam direction to obtain the beam direction of the accessed base station antenna and the initial optimal beam direction of the first phased array antenna and the second phased array antenna;
and controlling the first phased array antenna and the second phased array antenna to adjust the beam direction according to the initial optimal beam direction.
Specifically, in the initial signal access stage, all beam directions of the base station antenna and all beam directions of the first phased array antenna and the second phased array antenna may be traversed, and the signal quality in each beam direction is calculated to obtain the beam direction of the accessed base station antenna and the initial optimal beam directions of the first phased array antenna and the second phased array antenna, so that the initial beam directions of the first phased array antenna and the second phased array antenna are adjusted according to the initial optimal beam direction.
Further, the determining whether the signal quality is deteriorated specifically includes:
judging whether the number of times that the quality measurement of the signal in unit time is lower than a preset threshold is larger than a first set value or not, if so, indicating that the quality of the signal is deteriorated;
and/or;
and judging whether the reduction rate of the quality metric of the signal is greater than a second set value or not, and if so, indicating that the quality of the signal is deteriorated.
In addition, the present invention also provides a reception beam adjustment control apparatus, including:
a beam control module for controlling the beam direction of the first phased array antenna and the second phased array antenna;
the demodulation decoding module is used for demodulating and decoding the signals;
a measurement module, configured to measure a first received signal sent by the first phased array antenna and a second received signal sent by the second phased array antenna;
the receiving switch is connected with the beam control module and used for controlling the on-off of the second receiving signal and the demodulation decoding module under the control of the beam control module;
in a scheduling time slot, the beam control module controls the receiving switch to be switched off and controls the second phased array antenna to convert the beam direction, the demodulation and decoding module demodulates and decodes the first receiving signal, and the measurement module measures the converted second receiving signal;
in an unscheduled time slot, the beam control module controls the first phased array antenna and the second phased array antenna to transform a beam direction, and the measurement module measures the transformed first receiving signal and the transformed second receiving signal;
and the beam control module obtains an optimal beam according to the measurement result and controls the first phased array antenna and the second phased array antenna to adjust the beam direction according to the optimal beam in the next scheduling time slot.
According to the scheme, at least two receiving antennas are adopted, when single-stream receiving is carried out, the two phased array antennas receive the same transmitting signal content, so that in a scheduling time slot, only a first receiving signal of a first phased array antenna can be demodulated and decoded, and beam scanning is carried out on a second phased array antenna; in the non-scheduling time slot, the first phased array antenna and the second phased array antenna can be subjected to beam scanning at the same time, so that the system can track the change of a wireless channel quickly, a better beam is selected quickly, the optimal receiving beam is aligned with the base station beam quickly, and the quality of a communication signal is prevented from being influenced.
Further, the measurement module measures the signal quality of the first received signal and the second received signal of the scheduling timeslot without signal quality degradation, and judges whether the signal quality is degraded or not according to the measurement result;
the beam control module controls the receiving switch to be turned off when the signal quality is deteriorated and controls the receiving switch to be turned on when the signal quality is not deteriorated.
The signal quality of the first receiving signal and the second receiving signal of the scheduling time slot with no deterioration of the signal quality is measured through the measuring module, and whether the signal quality is deteriorated or not can be judged according to the measuring result; meanwhile, the beam control module can control the receiving switch to be switched off when the signal quality is deteriorated and to be switched on when the signal quality is not deteriorated, so that the purpose that only the first receiving signal of the first phased array antenna is demodulated and decoded and the second phased array antenna is subjected to beam scanning in a scheduling time slot is achieved, and the first phased array antenna and the second phased array antenna are simultaneously subjected to beam scanning in a non-scheduling time slot is achieved.
Further, the beam steering module controls the first phased array antenna and the second phased array antenna to change beam directions;
the measurement module calculates the signal quality of all beam directions of the base station antenna and all beam directions of the first phased array antenna and the second phased array antenna to obtain the beam direction of the accessed base station antenna and the initial optimal beam direction of the first phased array antenna and the second phased array antenna;
and the beam control module controls the first phased array antenna and the second phased array antenna to adjust the beam direction according to the initial optimal beam direction.
Further, if the number of times that the quality measure of the signal in unit time is lower than the preset threshold is greater than a first set value, the quality of the signal is judged to be deteriorated;
and/or;
and if the reduction rate of the quality metric of the signal is greater than a second set value, judging that the quality of the signal is deteriorated.
In addition, the invention also provides a terminal antenna system, which comprises a baseband processor, a first phased array antenna and a second phased array antenna,
the baseband processor comprises the receiving beam adjusting control device.
Further, still include: an RF processor that converts the received analog signals of the first and second phased array antennas to digital signals and sends the digital signals to the baseband processor.
According to the received beam adjustment control method, the received beam adjustment control device and the terminal antenna system, at least two receiving antennas are adopted, when single-stream receiving is carried out, the two phased array antennas receive the same transmitted signal content, so that in a scheduling time slot, only a first received signal of a first phased array antenna can be demodulated and decoded, and beam scanning is carried out on a second phased array antenna; in the non-scheduling time slot, the first phased array antenna and the second phased array antenna can be subjected to beam scanning at the same time, so that the system can quickly track the change of a wireless channel, a better beam can be quickly selected, the optimal receiving beam and a base station beam can be quickly aligned, and the quality of a communication signal is prevented from being influenced.
Drawings
The foregoing features, technical features, advantages and embodiments of the present invention will be further explained in the following detailed description of the preferred embodiments, which is to be read in connection with the accompanying drawings.
FIG. 1 is a schematic overall flow diagram of an embodiment of the present invention;
FIG. 2 is a diagram of a receive timeslot according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of an embodiment of the present invention;
FIG. 4 is a schematic diagram of the overall structure of an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a terminal antenna system according to an embodiment of the present invention.
Reference numbers in the figures: 10-a beam steering module; 11-a demodulation decoding module; 12-a measurement module; 13-receive switch.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, only the parts relevant to the present invention are schematically shown in the drawings, and they do not represent the actual structure as a product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".
Example 1
An embodiment of the present invention, as shown in fig. 1, provides a method for adjusting and controlling a receive beam, including:
s1, receiving a first receiving signal and a second receiving signal sent by a first phased array antenna and a second phased array antenna.
In the prior art, a terminal starts beam scanning of a receiving antenna array in an unscheduled time slot to obtain an optimal beam, and demodulates data in a scheduled time slot. However, as shown in fig. 2, the non-scheduled time slots are interspersed with the scheduled time slots, and the beam scanning process is lengthened because the beam direction of the antenna cannot be changed during data demodulation.
In this embodiment, two phased array antennas (i.e., phased array antenna 1 and phased array antenna 2) are used, and in other embodiments, multiple phased array antennas can be used, that is, at least one phased array antenna is guaranteed to be able to process in the existing manner (starting beam scanning of the receiving antenna array in the non-scheduled time slot, and demodulating data in the scheduled time slot), and at least one phased array antenna is able to always perform beam scanning.
And S2, demodulating and decoding the first receiving signal in the scheduling time slot, and controlling a second phased array antenna to transform the beam direction so as to measure the transformed second receiving signal.
By arranging the two phased array antennas, one of the two phased array antennas can carry out normal demodulation and decoding in a scheduling time slot so as to output signals to a software protocol stack, thereby meeting normal requirements; while the other phased array antenna is capable of beam scanning to more quickly select the optimal beam.
And S3, in the non-scheduling time slot, controlling the first phased array antenna and the second phased array antenna to transform the beam direction so as to measure the transformed first receiving signal and second receiving signal.
In the non-scheduling time slot, the two phased array antennas can perform beam scanning according to the existing mode, and the beam scanning of one phased array antenna in the scheduling time slot is combined, so that the time of the whole beam scanning process is reduced.
And S4, obtaining an optimal wave beam according to the measurement result, and controlling the first phased array antenna and the second phased array antenna to adjust the wave beam direction according to the optimal wave beam in the next scheduling time slot.
According to the scheme, at least two receiving antennas are adopted, when single-stream receiving is carried out, the two phased array antennas receive the same transmitting signal content, so that in a scheduling time slot, only a first receiving signal of a first phased array antenna can be demodulated and decoded, and beam scanning is carried out on a second phased array antenna; in the non-scheduling time slot, the first phased array antenna and the second phased array antenna can be subjected to beam scanning at the same time, so that the system can track the change of a wireless channel quickly, a better beam is selected quickly, the optimal receiving beam is aligned with the base station beam quickly, and the quality of a communication signal is prevented from being influenced.
Example 2
An embodiment of the present invention, as shown in fig. 3, further includes, after step S1, a step of:
and measuring the signal quality of the first receiving signal and the second receiving signal of the scheduling time slot without deteriorating the signal quality, and judging whether the signal quality is deteriorated or not according to the measuring result.
Preferably, in this embodiment, the determining whether the signal quality is deteriorated specifically includes: judging whether the number of times that the quality measurement of the signal in unit time is lower than a preset threshold is larger than a first set value or not, if so, indicating that the quality of the signal is deteriorated; and/or; and judging whether the reduction rate of the quality metric of the signal is greater than a second set value or not, and if so, indicating that the quality of the signal is deteriorated. The specific values of the first and second settings are determined based on the actual signal quality requirement.
If yes, executing the steps S2 to S4; if not, judging whether the current time slot is in a scheduling time slot; if the current time slot is in the scheduling time slot, controlling the first phased array antenna and the second phased array antenna to adjust the beam direction according to the optimal beam judged last time, demodulating and decoding the first receiving signal and the second receiving signal, measuring the current first receiving signal and the current second receiving signal, and continuously judging whether the signal quality is deteriorated according to the measurement results of the current first receiving signal and the current second receiving signal; and if the current time slot is the non-scheduling time slot, executing the step S3, and measuring the current first receiving signal and the current second receiving signal.
Specifically, signal quality measurement is performed on a first received signal and a second received signal of a scheduling time slot where signal quality is not degraded, whether signal quality is degraded or not can be judged according to a measurement result, if the signal quality is degraded, the above-mentioned method can be adopted to demodulate and decode only the first received signal of the first phased array antenna in the scheduling time slot, perform beam scanning on the second phased array antenna, and perform selection and adjustment of an optimal beam in a manner of performing beam scanning on the first phased array antenna and the second phased array antenna in a non-scheduling time slot, so as to ensure that alignment of the optimal beam and a base station beam is rapidly achieved.
If the signal quality is not deteriorated, the mobile terminal can act according to the current state, specifically, if the mobile terminal is currently in a scheduling time slot, the first phased array antenna and the second phased array antenna can be controlled to adjust the beam direction according to the optimal beam judged last time, the first receiving signal and the second receiving signal are demodulated and decoded, and meanwhile, the current first receiving signal and the current second receiving signal are measured, and whether the signals are deteriorated or not is judged; and if the current time slot is in the non-scheduling time slot, controlling the first phased array antenna and the second phased array antenna to change the beam direction according to the operation mode of the normal non-scheduling time slot so as to scan the beams of the first phased array antenna and the second phased array antenna.
Example 3
An embodiment of the present invention, on the basis of embodiment 1 or 2, further includes, before step S1, the steps of:
controlling the first phased array antenna and the second phased array antenna to transform the beam direction; traversing all beam directions of the base station antenna and all beam directions of the first phased array antenna and the second phased array antenna, and calculating the signal quality of each beam direction to obtain the beam direction of the accessed base station antenna and the initial optimal beam direction of the first phased array antenna and the second phased array antenna; and controlling the first phased array antenna and the second phased array antenna to adjust the beam direction according to the initial optimal beam direction.
Specifically, in the initial signal access stage, all beam directions of the base station antenna and all beam directions of the first phased array antenna and the second phased array antenna may be traversed, and signal quality in each beam direction is calculated to obtain the beam direction of the accessed base station antenna and the initial optimal beam direction of the first phased array antenna and the second phased array antenna, so that the initial beam direction of the first phased array antenna and the initial optimal beam direction of the second phased array antenna are adjusted according to the initial optimal beam direction.
Example 4
In an embodiment of the present invention, as shown in fig. 4, the present invention further provides a receive beam adjustment control apparatus, which includes a beam control module 10, a demodulation decoding module 11, a measurement module 12, and a receive switch 13.
The beam steering module 10 is used to steer the beam direction of the first phased array antenna (i.e., phased array antenna 1) and the second phased array antenna (i.e., phased array antenna 2).
The demodulation and decoding module 11 is used for demodulating and decoding the signal to output the signal to the software protocol stack.
The measurement module 12 is configured to measure a first received signal transmitted by the first phased array antenna and a second received signal transmitted by the second phased array antenna.
The receiving switch 13 is connected to the beam control module 10, and is used for controlling the on/off of the second receiving signal and the demodulation decoding module 11 under the control of the beam control module 10.
In the scheduling time slot, the beam control module 10 controls the receiving switch 13 to be switched off, and controls the second phased array antenna to convert the beam direction, the demodulation and decoding module 11 demodulates and decodes the first received signal, and the measurement module 12 measures the converted second received signal.
In the non-scheduled time slot, the beam control module 10 controls the first phased array antenna and the second phased array antenna to transform the beam direction, and the measurement module 12 measures the transformed first receiving signal and second receiving signal.
The beam control module 10 obtains an optimal beam according to the measurement result, and controls the first phased array antenna and the second phased array antenna to adjust the beam direction according to the optimal beam in the next scheduling time slot.
In the prior art, a terminal starts beam scanning of a receiving antenna array in an unscheduled time slot to obtain an optimal beam, and demodulates data in a scheduled time slot. However, as shown in fig. 2, non-scheduled time slots are interspersed with scheduled time slots, and the beam scanning cannot be performed by changing the antenna beam direction when demodulating data, so that the whole beam scanning process is lengthened.
In this embodiment, two phased array antennas (i.e., phased array antenna 1 and phased array antenna 2) are used, and in other embodiments, multiple phased array antennas can be used, that is, at least one phased array antenna is guaranteed to be able to process in the existing manner (starting beam scanning of the receiving antenna array in the non-scheduled time slot, and demodulating data in the scheduled time slot), and at least one phased array antenna is able to always perform beam scanning.
According to the scheme, at least two receiving antennas are adopted, when single-stream receiving is carried out, the two phased array antennas receive the same transmitting signal content, so that in a scheduling time slot, only a first receiving signal of a first phased array antenna can be demodulated and decoded, and a beam of a second phased array antenna can be scanned; in the non-scheduling time slot, the first phased array antenna and the second phased array antenna can be subjected to beam scanning at the same time, so that the system can track the change of a wireless channel quickly, a better beam is selected quickly, the optimal receiving beam is aligned with the base station beam quickly, and the quality of a communication signal is prevented from being influenced.
Example 5
In an embodiment of the present invention, on the basis of embodiment 4, the measurement module 12 performs signal quality measurement on the first received signal and the second received signal of the scheduling slot with no signal quality degradation, and determines whether the signal quality is degraded or not according to the measurement result.
Preferably, in this embodiment, if the number of times that the quality metric of the signal in the unit time is lower than the preset threshold is greater than the first set value, it is determined that the quality of the signal is deteriorated; and/or; if the rate of decrease of the quality metric of the signal is greater than a second set value, the quality of the signal is judged to be degraded. The specific values of the first and second settings are determined based on the actual signal quality requirement.
The beam control module 10 controls the reception switch 13 to be turned off when the signal quality is deteriorated, and controls the reception switch 13 to be turned on when the signal quality is not deteriorated.
The measurement module 12 measures the signal quality of the first receiving signal and the second receiving signal of the scheduling time slot without deteriorating the signal quality, and can judge whether the signal quality is deteriorated according to the measurement result; meanwhile, the beam control module 10 can control the receiving switch 13 to be switched off when the signal quality is deteriorated and control the receiving switch 13 to be switched on when the signal quality is not deteriorated, so that the purpose that only the first receiving signal of the first phased array antenna is demodulated and decoded, the second phased array antenna is subjected to beam scanning in the scheduling time slot, and the first phased array antenna and the second phased array antenna are simultaneously subjected to beam scanning in the non-scheduling time slot is realized.
Specifically, if the signal quality deteriorates, the above-mentioned method of demodulating and decoding only the first received signal of the first phased array antenna in the scheduling time slot, scanning the beam of the second phased array antenna, and scanning the beam of the first phased array antenna and the second phased array antenna in the non-scheduling time slot may be used to select and adjust the optimal beam, so as to ensure that the optimal beam is aligned with the beam of the base station quickly.
If the signal quality is not degraded, the first phased array antenna and the second phased array antenna can be controlled to adjust the beam direction according to the optimal beam judged at the last time, the first receiving signal and the second receiving signal are demodulated and decoded, and meanwhile, the current first receiving signal and the current second receiving signal are measured, and whether the signals are degraded or not is judged; and if the current time slot is in the non-scheduling time slot, controlling the first phased array antenna and the second phased array antenna to change the beam direction according to the operation mode of the normal non-scheduling time slot so as to scan the beams of the first phased array antenna and the second phased array antenna.
Preferably, during the initial access scanning, the beam direction of the first phased array antenna and the beam direction of the second phased array antenna may be controlled by the beam control module 10; the measurement module 12 calculates signal quality of all beam directions of the base station antenna and all beam directions of the first phased array antenna and the second phased array antenna to obtain a beam direction of the accessed base station antenna and initial optimal beam directions of the first phased array antenna and the second phased array antenna; the beam control module 10 controls the first phased array antenna and the second phased array antenna to adjust the beam direction according to the initial optimal beam direction.
Example 6
An embodiment of the present invention, as shown in fig. 4 and fig. 5, provides a terminal antenna system based on embodiment 4 or 5, where the terminal antenna system includes a baseband processor, a first phased array antenna (i.e., phased array antenna 1), a second phased array antenna (i.e., phased array antenna 2), and an RF processor, and the baseband processor includes the receive beam adjustment control apparatus described in embodiment 4 or 5. The RF processor converts the received analog signals of the first phased array antenna and the second phased array antenna into digital signals and sends the digital signals to the baseband processor.
By the terminal antenna system, only a first receiving signal of a first phased array antenna can be demodulated and decoded, and a beam of a second phased array antenna can be scanned in a scheduling time slot; in the non-scheduling time slot, the first phased array antenna and the second phased array antenna can be subjected to beam scanning at the same time, so that the system can quickly track the change of a wireless channel, a better beam can be quickly selected, the optimal receiving beam and a base station beam can be quickly aligned, and the quality of a communication signal is prevented from being influenced.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. A method for adjusting and controlling a receive beam, comprising the steps of:
s1, receiving a first receiving signal and a second receiving signal sent by a first phased array antenna and a second phased array antenna
Receiving a signal;
s2, demodulating and decoding the first receiving signal in a scheduling time slot, and controlling the first receiving signal
The second phased array antenna transforms the beam direction to measure the transformed second receiving signal;
s3, controlling the first phased array antenna and the second phased array antenna in a non-scheduling time slot
Transforming the beam direction to measure the transformed first and second received signals
An amount;
s4, obtaining an optimal wave beam according to the measurement result, and controlling the first phased array antenna and the first phased array antenna
And the second phased array antenna adjusts the beam direction according to the optimal beam in the next scheduling time slot.
2. The method of claim 1, wherein the method is applied to a mobile station
After the step S1, the method also comprises the following steps:
performing signal quality measurements on the first received signal and the second received signal for non-scheduled time slots
Measuring or making a signal quality measurement of said second received signal of a scheduled time slot;
judging whether the signal quality is deteriorated according to the measurement result;
if it is determined that the beam measurement is performed at a later time and the optimal beam is selected, the step is executed
S2 to S4.
3. The method of claim 1, wherein the method is applied to a mobile station
Before the step S1, the method further comprises the following steps:
controlling the first phased array antenna and the second phased array antenna to transform beam directions;
traversing all beam directions of a base station antenna, and said first phased array antenna, said second phase
Controlling all wave beam directions of the array antenna, and calculating the signal quality of each wave beam direction to obtain the signal quality of the antenna
Beam direction of incoming base station antenna, and said first and said second phased array antennas
The initial optimal beam direction of (a);
controlling the first phased array antenna and the second phased array antenna to follow the initial optimal beam
The direction adjusts the beam direction.
4. The method of claim 2, wherein the method further comprises
The judging whether the signal quality is deteriorated specifically includes:
judging whether the times of the quality measurement of the signal in unit time being lower than the preset threshold is larger than a first setting
If yes, indicating that the signal quality is deteriorated;
and/or;
judging whether the reduction rate of the quality metric of the signal is greater than a second set value, if so, judging that the reduction rate of the quality metric of the signal is greater than the second set value
Indicating a deterioration in signal quality.
5. A reception beam adjustment control apparatus, comprising:
the beam control module is used for controlling the beam directions of the first phased array antenna and the second phased array antenna;
the demodulation decoding module is used for demodulating and decoding the signals;
a measurement module for measuring the first reception signal and the second reception signal transmitted by the first phased array antenna
Measuring a second receiving signal transmitted by the phased array antenna;
a receiving switch connected with the beam control module for controlling the beam control module
The on-off of the second receiving signal and the demodulation decoding module is controlled;
wherein, in the scheduling time slot, the beam control module controls the receiving switch to be switched off and controls the receiving switch to be switched off
The second phased array antenna is made to change the beam direction, and the demodulation decoding module is used for the first received signal
The signal is demodulated and decoded, and the measurement module measures the transformed second receiving signal;
the beam steering module controls the first phased array antenna and the second phased array antenna during non-scheduled time slots
Two phased array antennas change the beam direction, and the measurement module changes the first receiving signal sum
The second received signal is measured;
the beam control module obtains an optimal beam according to the measurement result and controls the first phase control
The array antenna and the second phased array antenna adjust the wave according to the optimal wave beam in the next scheduling time slot
The beam direction.
6. The receive beam adjustment control apparatus of claim 5, wherein: what is needed is
The measurement module signals the first and second received signals for an unscheduled time slot
Measuring the quality of the second received signal of the scheduling time slot; and according to the measurement
Measuring the result, judging whether the signal quality is deteriorated;
the beam control module controls the receiving switch to be turned off when the signal quality is deteriorated and controls the receiving switch to be turned off when the signal quality is deteriorated
And controlling the receiving switch to be conducted when the quality is not deteriorated.
7. The receive beam adjustment control apparatus of claim 5, wherein: what is needed is
The beam control module controls the first phased array antenna and the second phased array antenna to transform beam directions
The direction of the flow is;
all beam directions of the measurement module to the base station antenna, and the first phased array antenna,
Calculating the signal quality of all wave beam directions of the second phased array antenna to obtain an accessed base station
A beam direction of the antenna, and an initial maximum of the first phased array antenna and the second phased array antenna
A preferred beam direction;
the beam control module controls the first phased array antenna and the second phased array antenna to follow
The initial optimal beam direction adjusts a beam direction.
8. The receive beam adjustment control apparatus of claim 6, wherein: if it is
The times that the quality measure of the signal in unit time is lower than the preset threshold is larger than a first set value, the signal is judged
The quality of the signal deteriorates;
and/or;
and if the reduction rate of the quality metric of the signal is greater than a second set value, judging that the quality of the signal is deteriorated.
9. A terminal antenna system, characterized by: including a baseband processor, a first phased array antenna
And a second phased array antenna, and a second phase control array antenna,
the baseband processor comprising the receive beam adjustment control apparatus of any of claims 5-8.
10. The terminal antenna system according to claim 9, further comprising:
an RF processor to interface the first phased array antenna and the second phased array antenna
And converting the received analog signals into digital signals and sending the digital signals to the baseband processor.
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