CN108288992A - A kind of Miniature repeater automatically controls the method, apparatus and baseband chip of gain - Google Patents
A kind of Miniature repeater automatically controls the method, apparatus and baseband chip of gain Download PDFInfo
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- CN108288992A CN108288992A CN201710013155.2A CN201710013155A CN108288992A CN 108288992 A CN108288992 A CN 108288992A CN 201710013155 A CN201710013155 A CN 201710013155A CN 108288992 A CN108288992 A CN 108288992A
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- downlink
- rssi0
- gain
- uplink
- signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15528—Control of operation parameters of a relay station to exploit the physical medium
- H04B7/15535—Control of relay amplifier gain
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
- H04B17/30—Monitoring; Testing of propagation channels
- H04B17/309—Measuring or estimating channel quality parameters
- H04B17/318—Received signal strength
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/155—Ground-based stations
- H04B7/15507—Relay station based processing for cell extension or control of coverage area
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
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- Electromagnetism (AREA)
- Mobile Radio Communication Systems (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
The present invention provides the method, apparatus and baseband chip that a kind of Miniature repeater automatically controls gain, calculates downlink initial gain G0_D and uplink initial gain G0_U；Calculate the received signal strength indicator RSSI0_U of the received signal strength indicator RSSI0_D and the uplink of the downlink ideally ideally；Downlink actual gain G1_D is calculated according to the received signal strength indicator RSSI0_D of the downlink initial gain G0_D and the downlink ideally, uplink actual gain G1_U is calculated according to the received signal strength indicator RSSI0_U of the uplink initial gain G0_U and the uplink ideally.The real-time detection that uplink and downlink input power is realized using baseband chip just calculates the required gain of link before amplification link is opened, ensure that the gain stabilization of entire link, can real-time adjust gain.
Description
Technical field
The present invention relates to wireless communication technology field more particularly to a kind of Miniature repeater automatically control gain method,
Device and baseband chip.
Background technology
It is difficult although outdoor macro station can penetrate wall due to the loss to signal of complexity and wall of building structure
To ensure indoor depth covering performance.Miniature repeater is of simple structure and low cost with its, the advantages that being easily installed, very
It is difficult to the blind area covered more and feeble field has a wide range of applications.Miniature repeater introduces signal and be amplified from donor antenna to be passed through
Retransmitting antenna covers specific region, and in actual use, one side Miniature repeater will expire the gain amplifier of signal
Coverage distance demand when the sufficient network planning, on the other hand to control output power makes power discharging device be not located at over-power condition
Under, while the too strong output signal interfered to adjacent base station is not had.
The amplification link of traditional Miniature repeater is generally built using the analog component of separation, comprising gate circuit and directly
Stream amplifier part measures output power with wave detector in output end, is used in combination the direct current of reaction signal amplitude variation tendency gradual
Voltage removes control adjustable attenuator, to reach the purpose of ALC (Automatic level control, auto level control).
In the implementation of the present invention, inventor has found at least to have the following technical problems in the prior art：Amplifying
At the beginning of link design, it is determined that be equivalent to secure the nominal gain of Miniature repeater after analog device, be unable to flexible configuration
Gain.
Invention content
A kind of Miniature repeater provided by the invention automatically controls the method, apparatus and baseband chip of gain, utilizes base band
Chip realizes the real-time detection of uplink and downlink input power, is just carried out to the required gain of link before amplification link is opened
It calculates, ensure that the gain stabilization of entire link, it can real-time adjust gain.
In a first aspect, the present invention provides a kind of method that Miniature repeater automatically controls gain, including：
Calculate downlink initial gain G0_D and uplink initial gain G0_U；
It calculates downlink received signal strength indicator RSSI0_D ideally and the uplink is ideal
Received signal strength indicator RSSI0_U under state；
Referred to according to the downlink initial gain G0_D and the received signal strength of the downlink ideally
Show that RSSI0_D calculates downlink actual gain G1_D, according to the uplink initial gain G0_U and the uplink
Received signal strength indicator RSSI0_U ideally calculates uplink actual gain G1_U.
Optionally, the calculating downlink initial gain G0_D and uplink initial gain G0_U be in the following manner
It carries out：
As RSRP_D ＜ PR_D-GR_D-10log (NRB) when, G0_D=GR_D；
As RSRP_D >=PR_D-GR_D-10log (NRB) when, G0_D=PR_D-RSRP_D-10log (NRB)；
Wherein, RSRP_D is the Reference Signal Received Power of the downlink measured, and PR_D is the specified hair of downlink
Penetrate power, NRBFor subcarrier number, GR_D is the nominal gain of downlink, and PA_D is the actual emission power of downlink；
G0_U=min (GR_U, G0_D-offset),
Wherein, GR_U is the nominal gain of uplink, and offset is the initial gain and downlink of uplink
Droop between initial gain.
Optionally, the downlink received signal strength indicator RSSI0_D ideally and described of calculating
The received signal strength indicator RSSI0_U of uplink ideally is carried out in the following manner：
RSSI0_D=RSSIdefault_D+GAGC_D-Gdefault_D；
Wherein, RSSIdefault_ D is the acquiescence received signal strength indicator of automatic growth control AGC in downlink,
GAGC_ D is the actual gain of AGC in downlink, Gdefault_ D is the default gain of AGC in downlink；
RSSI0_U=RSSIdefault_U+GAGC_U-Gdefault_U；
Wherein, RSSIdefault_ U is the acquiescence received signal strength indicator of automatic growth control AGC in uplink,
GAGC_ U is the actual gain of AGC in uplink, Gdefault_ U is the default gain of AGC in uplink.
Optionally, downlink received signal strength indicator RSSI0_D ideally and institute are calculated described
Before stating the received signal strength indicator RSSI0_U of uplink ideally, further include：
Believed respectively according to the reception of the received signal strength indicator RSSI1_D of actually measured downlink and uplink
The actual gain G of AGC in downlink described in number intensity instruction RSSI1_U adjust automaticalliesAGCAGC in _ D and the uplink
Actual gain GAGC_U。
Optionally, downlink received signal strength indicator RSSI0_D ideally and institute are calculated described
It is described initially to be increased according to the downlink after stating the received signal strength indicator RSSI0_U of uplink ideally
The received signal strength indicator RSSI0_D of beneficial G0_D and the downlink ideally calculates downlink actual gain
Before G1_D, further include：
According to the reality of automated power control APC in the actual emission power PA_D adjust automatically downlinks of downlink
Gain GAPCThe actual gain G of _ D and downlink intermediate power amplifier PAPAThe sum of _ D, to ensure GAGC_D+GAPC_D+GPA_ D=
G0_D；
According to the reality of automated power control APC in the actual emission power PA_U adjust automatically uplinks of uplink
Gain GAPCThe actual gain G of _ U and uplink intermediate power amplifier PAPAThe sum of _ U, to ensure GAGC_U+GAPC_U+GPA_ U=
G0_U。
Optionally, the reception according to the downlink initial gain G0_D and the downlink ideally
Signal strength indicates that RSSI0_D calculates downlink actual gain G1_D, according to the uplink initial gain G0_U and institute
Stating the received signal strength indicator RSSI0_U calculating uplink actual gain G1_U of uplink ideally includes：When
RSSI0_D ＜ PR_D-G0_D, and when RSSI0_U ＜ PR_U-G0_U, G1_D=G0_D, G1_U=G0_U；
As RSSI0_D >=PR_D-G0_D, and when RSSI0_U ＜ PR_U-G0_U,
G1_D=min (G0_D, PR_D-RSSI0_D), G1_U=G1_D-offset；
As RSSI0_D ＜ PR_D-G0_D, and when RSSI0_U >=PR_U-G0_U,
G1_D=G0_D, G1_U=min (G0_U, PR_U-RSSI0_U)；
As RSSI0_D >=PR_D-G0_D, and when RSSI0_U >=PR_U-G0_U,
G1_D=min (G0_D, PR_D-RSSI0_D), G1_U=min (G0_U, PR_U-RSSI0_U).
Second aspect, the present invention provide the device that a kind of Miniature repeater automatically controls gain, including：
First computing unit, for calculating downlink initial gain G0_D and uplink initial gain G0_U；
Second computing unit, for calculating the received signal strength indicator RSSI0_D of the downlink ideally
With the received signal strength indicator RSSI0_U of the uplink ideally；
Third computing unit, for according to the downlink initial gain G0_D and the downlink ideally
Received signal strength indicator RSSI0_D calculate downlink actual gain G1_D, according to the uplink initial gain G0_
The received signal strength indicator RSSI0_U of U and the uplink ideally calculates uplink actual gain G1_U.
Optionally, first computing unit calculates downlink initial gain G0_D and uplink initial gain G0_U
It carries out in the following manner：
As RSRP_D ＜ PR_D-GR_D-10log (NRB) when, G0_D=GR_D；
As RSRP_D >=PR_D-GR_D-10log (NRB) when, G0_D=PR_D-RSRP_D-10log (NRB)；
Wherein, RSRP_D is the Reference Signal Received Power of the downlink measured, and PR_D is the specified hair of downlink
Penetrate power, NRBFor subcarrier number, GR_D is the nominal gain of downlink, and PA_D is the actual emission power of downlink；
G0_U=min (GR_U, G0_D-offset),
Wherein, GR_U is the nominal gain of uplink, and offset is the initial gain and downlink of uplink
Droop between initial gain.
Optionally, second computing unit calculates the received signal strength indicator of the downlink ideally
The received signal strength indicator RSSI0_U of RSSI0_D and the uplink ideally is carried out in the following manner：
RSSI0_D=RSSIdefault_D+GAGC_D-Gdefault_D；
Wherein, RSSIdefault_ D is the acquiescence received signal strength indicator of automatic growth control AGC in downlink,
GAGC_ D is the actual gain of AGC in downlink, Gdefault_ D is the default gain of AGC in downlink；
RSSI0_U=RSSIdefault_U+GAGC_U-Gdefault_U；
Wherein, RSSIdefault_ U is the acquiescence received signal strength indicator of automatic growth control AGC in uplink,
GAGC_ U is the actual gain of AGC in uplink, Gdefault_ U is the default gain of AGC in uplink.
Optionally, second computing unit calculates the received signal strength indicator of the downlink ideally
Before the received signal strength indicator RSSI0_U of RSSI0_D and the uplink ideally, further include：
Believed respectively according to the reception of the received signal strength indicator RSSI1_D of actually measured downlink and uplink
The actual gain G of AGC in downlink described in number intensity instruction RSSI1_U adjust automaticalliesAGCAGC in _ D and the uplink
Actual gain GAGC_U。
Optionally, second computing unit calculates the received signal strength indicator of the downlink ideally
After the received signal strength indicator RSSI0_U of RSSI0_D and the uplink ideally, the third computing unit
According to the received signal strength indicator RSSI0_D of the downlink initial gain G0_D and the downlink ideally
Before calculating downlink actual gain G1_D, further include：
According to the reality of automated power control APC in the actual emission power PA_D adjust automatically downlinks of downlink
Gain GAPCThe actual gain G of _ D and downlink intermediate power amplifier PAPAThe sum of _ D, to ensure GAGC_D+GAPC_D+GPA_ D=
G0_D；
According to the reality of automated power control APC in the actual emission power PA_U adjust automatically uplinks of uplink
Gain GAPCThe actual gain G of _ U and uplink intermediate power amplifier PAPAThe sum of _ U, to ensure GAGC_U+GAPC_U+GPA_ U=
G0_U。
Optionally, the third computing unit is ideal according to the downlink initial gain G0_D and the downlink
Received signal strength indicator RSSI0_D under state calculates downlink actual gain G1_D, initial according to the uplink
The received signal strength indicator RSSI0_U of gain G 0_U and the uplink ideally calculates uplink actual gain
G1_U includes：As RSSI0_D ＜ PR_D-G0_D, and when RSSI0_U ＜ PR_U-G0_U, G1_D=G0_D, G1_U=G0_U；
As RSSI0_D >=PR_D-G0_D, and when RSSI0_U ＜ PR_U-G0_U,
G1_D=min (G0_D, PR_D-RSSI0_D), G1_U=G1_D-offset；
As RSSI0_D ＜ PR_D-G0_D, and when RSSI0_U >=PR_U-G0_U,
G1_D=G0_D, G1_U=min (G0_U, PR_U-RSSI0_U)；
As RSSI0_D >=PR_D-G0_D, and when RSSI0_U >=PR_U-G0_U,
G1_D=min (G0_D, PR_D-RSSI0_D), G1_U=min (G0_U, PR_U-RSSI0_U).
The third aspect, the present invention provide a kind of baseband chip, and the baseband chip includes the Miniature repeater self-excitation
The device of detection and processing.
Miniature repeater provided in an embodiment of the present invention automatically controls the method, apparatus and baseband chip of gain, under calculating
Line link initial gain G0_D and uplink initial gain G0_U；Calculate the reception signal of the downlink ideally
Intensity indicates the received signal strength indicator RSSI0_U of RSSI0_D and the uplink ideally；According to the downlink
The received signal strength indicator RSSI0_D of link initial gain G0_D and the downlink ideally calculates downlink
Actual gain G1_D is strong according to the reception signal of the uplink initial gain G0_U and the uplink ideally
Degree instruction RSSI0_U calculates uplink actual gain G1_U.The real-time of uplink and downlink input power is realized using baseband chip
Detection just calculates the required gain of link before amplification link is opened, ensure that the gain stabilization of entire link, can
With real-time adjust gain.
Description of the drawings
Fig. 1 is the principle flow chart of Miniature repeater provided by the invention；
Fig. 2 is the flow chart for the method that one embodiment of the invention Miniature repeater automatically controls gain；
Fig. 3 is the structural schematic diagram for the device that one embodiment of the invention Miniature repeater automatically controls gain.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
The present invention provides a kind of method that Miniature repeater automatically controls gain, and the schematic diagram of the Miniature repeater is as schemed
Shown in 1, the primary path of the Miniature repeater is constituted by the way of two radio frequency transceiver chip cascades, each radio frequency
Transceiver chip is equipped with two groups of circuits being made of power amplifier and low-noise amplifier, and the Miniature repeater further includes
One baseband chip and Power Management Unit (PMU).The uplink and downlink link of the Miniature repeater is symmetrical.
The method that Miniature repeater provided by the invention automatically controls gain, as shown in Fig. 2, the method includes：
S11, downlink initial gain G0_D and uplink initial gain G0_U is calculated.
Optionally, the calculating downlink initial gain G0_D and uplink initial gain G0_U be in the following manner
It carries out：
As RSRP_D ＜ PR_D-GR_D-10log (NRB) when, G0_D=GR_D；
As RSRP_D >=PR_D-GR_D-10log (NRB) when, G0_D=PR_D-RSRP_D-10log (NRB)；
Wherein, RSRP_D is the Reference Signal Received Power of the downlink measured, and PR_D is the specified hair of downlink
Penetrate power, NRBFor subcarrier number, GR_D is the nominal gain of downlink, and PA_D is the actual emission power of downlink；
G0_U=min (GR_U, G0_D-offset),
Wherein, GR_U is the nominal gain of uplink, and offset is the initial gain and downlink of uplink
Droop between initial gain.
S12, downlink received signal strength indicator RSSI0_D ideally and the uplink are calculated
Received signal strength indicator RSSI0_U ideally.
Optionally, the downlink received signal strength indicator RSSI0_D ideally and described of calculating
The received signal strength indicator RSSI0_U of uplink ideally is carried out in the following manner：
RSSI0_D=RSSIdefault_D+GAGC_D-Gdefault_D；
Wherein, RSSIdefault_ D is the acquiescence received signal strength indicator of automatic growth control AGC in downlink,
GAGC_ D is the actual gain of AGC in downlink, Gdefault_ D is the default gain of AGC in downlink；
RSSI0_U=RSSIdefault_U+GAGC_U-Gdefault_U；
Wherein, RSSIdefault_ U is the acquiescence received signal strength indicator of automatic growth control AGC in uplink,
GAGC_ U is the actual gain of AGC in uplink, Gdefault_ U is the default gain of AGC in uplink.
Optionally, downlink received signal strength indicator RSSI0_D ideally and institute are calculated described
Before stating the received signal strength indicator RSSI0_U of uplink ideally, further include：
Believed respectively according to the reception of the received signal strength indicator RSSI1_D of actually measured downlink and uplink
The actual gain G of AGC in downlink described in number intensity instruction RSSI1_U adjust automaticalliesAGCAGC in _ D and the uplink
Actual gain GAGC_U。
It is S13, strong according to the reception signal of the downlink initial gain G0_D and the downlink ideally
Degree instruction RSSI0_D calculates downlink actual gain G1_D, according to the uplink initial gain G0_U and the uplink
The received signal strength indicator RSSI0_U of link ideally calculates uplink actual gain G1_U.
Optionally, downlink received signal strength indicator RSSI0_D ideally and institute are calculated described
It is described initially to be increased according to the downlink after stating the received signal strength indicator RSSI0_U of uplink ideally
The received signal strength indicator RSSI0_D of beneficial G0_D and the downlink ideally calculates downlink actual gain
Before G1_D, further include：
According to the reality of automated power control APC in the actual emission power PA_D adjust automatically downlinks of downlink
Gain GAPCThe actual gain G of _ D and downlink intermediate power amplifier PAPAThe sum of _ D, to ensure GAGC_D+GAPC_D+GPA_ D=
G0_D；
According to the reality of automated power control APC in the actual emission power PA_U adjust automatically uplinks of uplink
Gain GAPCThe actual gain G of _ U and uplink intermediate power amplifier PAPAThe sum of _ U, to ensure GAGC_U+GAPC_U+GPA_ U=
G0_U。
Optionally, the reception according to the downlink initial gain G0_D and the downlink ideally
Signal strength indicates that RSSI0_D calculates downlink actual gain G1_D, according to the uplink initial gain G0_U and institute
Stating the received signal strength indicator RSSI0_U calculating uplink actual gain G1_U of uplink ideally includes：When
RSSI0_D ＜ PR_D-G0_D, and when RSSI0_U ＜ PR_U-G0_U, G1_D=G0_D, G1_U=G0_U；
As RSSI0_D >=PR_D-G0_D, and when RSSI0_U ＜ PR_U-G0_U,
G1_D=min (G0_D, PR_D-RSSI0_D), G1_U=G1_D-offset；
As RSSI0_D ＜ PR_D-G0_D, and when RSSI0_U >=PR_U-G0_U,
G1_D=G0_D, G1_U=min (G0_U, PR_U-RSSI0_U)；
As RSSI0_D >=PR_D-G0_D, and when RSSI0_U >=PR_U-G0_U,
G1_D=min (G0_D, PR_D-RSSI0_D), G1_U=min (G0_U, PR_U-RSSI0_U).
The method that Miniature repeater provided in an embodiment of the present invention automatically controls gain calculates downlink initial gain
G0_D and uplink initial gain G0_U；Calculate the received signal strength indicator RSSI0_ of the downlink ideally
The received signal strength indicator RSSI0_U of D and the uplink ideally；According to the downlink initial gain
The received signal strength indicator RSSI0_D of G0_D and the downlink ideally calculates downlink actual gain G1_
D, according to the received signal strength indicator of the uplink initial gain G0_U and the uplink ideally
RSSI0_U calculates uplink actual gain G1_U.The real-time detection of uplink and downlink input power is realized using baseband chip,
Just the required gain of link is calculated before amplification link is opened, ensure that the gain stabilization of entire link, Ke Yishi
When adjust gain.
The embodiment of the present invention also provides the device that a kind of Miniature repeater automatically controls gain, as shown in figure 3, described device
Including：
First computing unit 101, for calculating downlink initial gain G0_D and uplink initial gain G0_U.
Optionally, first computing unit calculates downlink initial gain G0_D and uplink initial gain G0_U
It carries out in the following manner：
As RSRP_D ＜ PR_D-GR_D-10log (NRB) when, G0_D=GR_D；
As RSRP_D >=PR_D-GR_D-10log (NRB) when, G0_D=PR_D-RSRP_D-10log (NRB)；
Wherein, RSRP_D is the Reference Signal Received Power of the downlink measured, and PR_D is the specified hair of downlink
Penetrate power, NRBFor subcarrier number, GR_D is the nominal gain of downlink, and PA_D is the actual emission power of downlink；
G0_U=min (GR_U, G0_D-offset),
Wherein, GR_U is the nominal gain of uplink, and offset is the initial gain and downlink of uplink
Droop between initial gain.
Second computing unit 102, for calculating the received signal strength indicator of the downlink ideally
The received signal strength indicator RSSI0_U of RSSI0_D and the uplink ideally.
Optionally, second computing unit calculates the received signal strength indicator of the downlink ideally
The received signal strength indicator RSSI0_U of RSSI0_D and the uplink ideally is carried out in the following manner：
RSSI0_D=RSSIdefault_D+GAGC_D-Gdefault_D；
Wherein, RSSIdefault_ D is the acquiescence received signal strength indicator of automatic growth control AGC in downlink,
GAGC_ D is the actual gain of AGC in downlink, Gdefault_ D is the default gain of AGC in downlink；
RSSI0_U=RSSIdefault_U+GAGC_U-Gdefault_U；
Wherein, RSSIdefault_ U is the acquiescence received signal strength indicator of automatic growth control AGC in uplink,
GAGC_ U is the actual gain of AGC in uplink, Gdefault_ U is the default gain of AGC in uplink.
Optionally, second computing unit calculates the received signal strength indicator of the downlink ideally
Before the received signal strength indicator RSSI0_U of RSSI0_D and the uplink ideally, further include：
Believed respectively according to the reception of the received signal strength indicator RSSI1_D of actually measured downlink and uplink
The actual gain G of AGC in downlink described in number intensity instruction RSSI1_U adjust automaticalliesAGCAGC in _ D and the uplink
Actual gain GAGC_U。
Third computing unit 103, for according to the downlink initial gain G0_D and the downlink ideal shape
Received signal strength indicator RSSI0_D under state calculates downlink actual gain G1_D, is initially increased according to the uplink
The received signal strength indicator RSSI0_U of beneficial G0_U and the uplink ideally calculates uplink actual gain
G1_U。
Optionally, second computing unit 102 calculates the received signal strength of the downlink ideally and refers to
After showing the received signal strength indicator RSSI0_U of RSSI0_D and the uplink ideally, the third calculates single
Received signal strength indicator of the member 103 according to the downlink initial gain G0_D and the downlink ideally
Before RSSI0_D calculates downlink actual gain G1_D, further include：
According to the reality of automated power control APC in the actual emission power PA_D adjust automatically downlinks of downlink
Gain GAPCThe actual gain G of _ D and downlink intermediate power amplifier PAPAThe sum of _ D, to ensure GAGC_D+GAPC_D+GPA_ D=
G0_D；
According to the reality of automated power control APC in the actual emission power PA_U adjust automatically uplinks of uplink
Gain GAPCThe actual gain G of _ U and uplink intermediate power amplifier PAPAThe sum of _ U, to ensure GAGC_U+GAPC_U+GPA_ U=
G0_U。
Optionally, the third computing unit 103 is according to the downlink initial gain G0_D and the downlink
Received signal strength indicator RSSI0_D ideally calculates downlink actual gain G1_D, according to the uplink
It is practical that the received signal strength indicator RSSI0_U of initial gain G0_U and the uplink ideally calculates uplink
Gain G 1_U includes：As RSSI0_D ＜ PR_D-G0_D, and when RSSI0_U ＜ PR_U-G0_U, G1_D=G0_D, G1_U=G0_
U；
As RSSI0_D >=PR_D-G0_D, and when RSSI0_U ＜ PR_U-G0_U,
G1_D=min (G0_D, PR_D-RSSI0_D), G1_U=G1_D-offset；
As RSSI0_D ＜ PR_D-G0_D, and when RSSI0_U >=PR_U-G0_U,
G1_D=G0_D, G1_U=min (G0_U, PR_U-RSSI0_U)；
As RSSI0_D >=PR_D-G0_D, and when RSSI0_U >=PR_U-G0_U,
G1_D=min (G0_D, PR_D-RSSI0_D), G1_U=min (G0_U, PR_U-RSSI0_U).
Miniature repeater provided in an embodiment of the present invention automatically controls the device of gain, calculates
Downlink initial gain G0_D and uplink initial gain G0_U；Calculate the reception letter of the downlink ideally
The received signal strength indicator RSSI0_U of the instruction of number intensity RSSI0_D and the uplink ideally；Under described
The received signal strength indicator RSSI0_D of line link initial gain G0_D and the downlink ideally calculates downlink chain
Road actual gain G1_D, according to the reception signal of the uplink initial gain G0_U and the uplink ideally
Intensity indicates that RSSI0_U calculates uplink actual gain G1_U.The reality of uplink and downlink input power is realized using baseband chip
When detect, amplification link open before just the required gain of link is calculated, ensure that the gain stabilization of entire link,
It can real-time adjust gain.
The embodiment of the present invention also provides a kind of baseband chip, and the baseband chip includes that the Miniature repeater automatically controls
The device of gain.
One of ordinary skill in the art will appreciate that realizing all or part of flow in above-described embodiment method, being can be with
Relevant hardware is instructed to complete by computer program, the program can be stored in a computer read/write memory medium
In, the program is when being executed, it may include such as the flow of the embodiment of above-mentioned each method.Wherein, the storage medium can be magnetic
Dish, CD, read-only memory (Read-Only Memory, ROM) or random access memory (Random Access
Memory, RAM) etc..
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, all answer by the change or replacement that can be readily occurred in
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be subject to the protection scope in claims.
Claims (13)
1. a kind of method that Miniature repeater automatically controls gain, which is characterized in that including：
Calculate downlink initial gain G0_D and uplink initial gain G0_U；
Calculate downlink received signal strength indicator RSSI0_D ideally and the uplink perfect condition
Under received signal strength indicator RSSI0_U；
According to the received signal strength indicator of the downlink initial gain G0_D and the downlink ideally
RSSI0_D calculates downlink actual gain G1_D, is managed according to the uplink initial gain G0_U and the uplink
Think that the received signal strength indicator RSSI0_U under state calculates uplink actual gain G1_U.
2. according to the method described in claim 1, it is characterized in that, the calculating downlink initial gain G0_D and uplink
Road initial gain G0_U is carried out in the following manner：
As RSRP_D ＜ PR_D-GR_D-10log (NRB) when, G0_D=GR_D；
As RSRP_D >=PR_D-GR_D-10log (NRB) when, G0_D=PR_D-RSRP_D-10log (NRB)；
Wherein, RSRP_D is the Reference Signal Received Power of the downlink measured, and PR_D is the specified transmitting work(of downlink
Rate, NRBFor subcarrier number, GR_D is the nominal gain of downlink, and PA_D is the actual emission power of downlink；
G0_U=min (GR_U, G0_D-offset),
Wherein, GR_U be uplink nominal gain, offset be uplink initial gain and downlink it is initial
Droop between gain.
3. according to the method described in claim 1, it is characterized in that, described calculate the reception of the downlink ideally
The received signal strength indicator RSSI0_U of signal strength instruction RSSI0_D and the uplink ideally passes through following
Mode carries out：
RSSI0_D=RSSIdefault_D+GAGC_D-Gdefault_D；
Wherein, RSSIdefault_ D is the acquiescence received signal strength indicator of automatic growth control AGC in downlink, GAGC_ D is
The actual gain of AGC, G in downlinkdefault_ D is the default gain of AGC in downlink；
RSSI0_U=RSSIdefault_U+GAGC_U-Gdefault_U；
Wherein, RSSIdefault_ U is the acquiescence received signal strength indicator of automatic growth control AGC in uplink, GAGC_ U is
The actual gain of AGC, G in uplinkdefault_ U is the default gain of AGC in uplink.
4. according to the method described in claim 3, it is characterized in that, calculating the downlink connecing ideally described
Before receiving the received signal strength indicator RSSI0_U of signal strength instruction RSSI0_D and the uplink ideally, also
Including：
Reception signal respectively according to the received signal strength indicator RSSI1_D of actually measured downlink and uplink is strong
The actual gain G of AGC in downlink described in degree instruction RSSI1_U adjust automaticalliesAGCThe reality of AGC in _ D and the uplink
Border gain GAGC_U。
5. according to the method described in claim 4, it is characterized in that, calculating the downlink connecing ideally described
After receiving the received signal strength indicator RSSI0_U of signal strength instruction RSSI0_D and the uplink ideally, institute
State the received signal strength indicator ideally according to the downlink initial gain G0_D and the downlink
Before RSSI0_D calculates downlink actual gain G1_D, further include：
According to the actual gain of automated power control APC in the actual emission power PA_D adjust automatically downlinks of downlink
GAPCThe actual gain G of _ D and downlink intermediate power amplifier PAPAThe sum of _ D, to ensure GAGC_D+GAPC_D+GPA_ D=G0_
D；
According to the actual gain of automated power control APC in the actual emission power PA_U adjust automatically uplinks of uplink
GAPCThe actual gain G of _ U and uplink intermediate power amplifier PAPAThe sum of _ U, to ensure GAGC_U+GAPC_U+GPA_ U=G0_
U。
6. according to the method described in claim 1, it is characterized in that, described according to the downlink initial gain G0_D and institute
It states the received signal strength indicator RSSI0_D of downlink ideally and calculates downlink actual gain G1_D, according to institute
It states in the received signal strength indicator RSSI0_U calculating of uplink initial gain G0_U and the uplink ideally
Line link actual gain G1_U includes：As RSSI0_D ＜ PR_D-G0_D, and when RSSI0_U ＜ PR_U-G0_U, G1_D=G0_
D, G1_U=G0_U；
As RSSI0_D >=PR_D-G0_D, and when RSSI0_U ＜ PR_U-G0_U,
G1_D=min (G0_D, PR_D-RSSI0_D), G1_U=G1_D-offset；
As RSSI0_D ＜ PR_D-G0_D, and when RSSI0_U >=PR_U-G0_U,
G1_D=G0_D, G1_U=min (G0_U, PR_U-RSSI0_U)；
As RSSI0_D >=PR_D-G0_D, and when RSSI0_U >=PR_U-G0_U,
G1_D=min (G0_D, PR_D-RSSI0_D), G1_U=min (G0_U, PR_U-RSSI0_U).
7. a kind of Miniature repeater automatically controls the device of gain, which is characterized in that including：
First computing unit, for calculating downlink initial gain G0_D and uplink initial gain G0_U；
Second computing unit, for calculating downlink received signal strength indicator RSSI0_D ideally and institute
State the received signal strength indicator RSSI0_U of uplink ideally；
Third computing unit, for the connecing ideally according to the downlink initial gain G0_D and the downlink
Receive signal strength instruction RSSI0_D and calculate downlink actual gain G1_D, according to the uplink initial gain G0_U and
The received signal strength indicator RSSI0_U of the uplink ideally calculates uplink actual gain G1_U.
8. device according to claim 7, which is characterized in that first computing unit calculates downlink initial gain
G0_D and uplink initial gain G0_U are carried out in the following manner：
As RSRP_D ＜ PR_D-GR_D-10log (NRB) when, G0_D=GR_D；
As RSRP_D >=PR_D-GR_D-10log (NRB) when, G0_D=PR_D-RSRP_D-10log (NRB)；
Wherein, RSRP_D is the Reference Signal Received Power of the downlink measured, and PR_D is the specified transmitting work(of downlink
Rate, NRBFor subcarrier number, GR_D is the nominal gain of downlink, and PA_D is the actual emission power of downlink；
G0_U=min (GR_U, G0_D-offset),
Wherein, GR_U be uplink nominal gain, offset be uplink initial gain and downlink it is initial
Droop between gain.
9. device according to claim 7, which is characterized in that it is ideal that second computing unit calculates the downlink
The received signal strength indicator of received signal strength indicator RSSI0_D and the uplink ideally under state
RSSI0_U is carried out in the following manner：
RSSI0_D=RSSIdefault_D+GAGC_D-Gdefault_D；
Wherein, RSSIdefault_ D is the acquiescence received signal strength indicator of automatic growth control AGC in downlink, GAGC_ D is
The actual gain of AGC, G in downlinkdefault_ D is the default gain of AGC in downlink；
RSSI0_U=RSSIdefault_U+GAGC_U-Gdefault_U；
Wherein, RSSIdefault_ U is the acquiescence received signal strength indicator of automatic growth control AGC in uplink, GAGC_ U is
The actual gain of AGC, G in uplinkdefault_ U is the default gain of AGC in uplink.
10. device according to claim 9, which is characterized in that second computing unit calculates the downlink reason
Think the received signal strength indicator of received signal strength indicator RSSI0_D and the uplink ideally under state
Before RSSI0_U, further include：
Reception signal respectively according to the received signal strength indicator RSSI1_D of actually measured downlink and uplink is strong
The actual gain G of AGC in downlink described in degree instruction RSSI1_U adjust automaticalliesAGCThe reality of AGC in _ D and the uplink
Border gain GAGC_U。
11. device according to claim 10, which is characterized in that second computing unit calculates the downlink reason
Think the received signal strength indicator of received signal strength indicator RSSI0_D and the uplink ideally under state
After RSSI0_U, the third computing unit is according to the downlink initial gain G0_D and the downlink ideal shape
Before received signal strength indicator RSSI0_D under state calculates downlink actual gain G1_D, further include：
According to the actual gain of automated power control APC in the actual emission power PA_D adjust automatically downlinks of downlink
GAPCThe actual gain G of _ D and downlink intermediate power amplifier PAPAThe sum of _ D, to ensure GAGC_D+GAPC_D+GPA_ D=G0_
D；
According to the actual gain of automated power control APC in the actual emission power PA_U adjust automatically uplinks of uplink
GAPCThe actual gain G of _ U and uplink intermediate power amplifier PAPAThe sum of _ U, to ensure GAGC_U+GAPC_U+GPA_ U=G0_
U。
12. device according to claim 7, which is characterized in that the third computing unit is according at the beginning of the downlink
The received signal strength indicator RSSI0_D of beginning gain G 0_D and the downlink ideally calculates the practical increasing of downlink
Beneficial G1_D, according to the received signal strength indicator of the uplink initial gain G0_U and the uplink ideally
RSSI0_U calculates uplink actual gain G1_U：As RSSI0_D ＜ PR_D-G0_D, and RSSI0_U ＜ PR_U-G0_U
When, G1_D=G0_D, G1_U=G0_U；
As RSSI0_D >=PR_D-G0_D, and when RSSI0_U ＜ PR_U-G0_U,
G1_D=min (G0_D, PR_D-RSSI0_D), G1_U=G1_D-offset；
As RSSI0_D ＜ PR_D-G0_D, and when RSSI0_U >=PR_U-G0_U,
G1_D=G0_D, G1_U=min (G0_U, PR_U-RSSI0_U)；
As RSSI0_D >=PR_D-G0_D, and when RSSI0_U >=PR_U-G0_U,
G1_D=min (G0_D, PR_D-RSSI0_D), G1_U=min (G0_U, PR_U-RSSI0_U).
13. a kind of baseband chip, which is characterized in that the baseband chip includes as described in any one of claim 7 to 12
The device of Miniature repeater Self-excitation Detection and processing.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110445562A (en) * | 2019-08-15 | 2019-11-12 | 展讯通信（上海）有限公司 | Gain control method, device, trunking and storage medium |
| CN110474691A (en) * | 2019-08-09 | 2019-11-19 | 三维通信股份有限公司 | Gain control method and device |
| WO2022017151A1 (en) * | 2020-07-23 | 2022-01-27 | 展讯通信（上海）有限公司 | Self-excitation detection method and system for wireless signal relay amplification apparatus |
| CN114567361A (en) * | 2022-04-28 | 2022-05-31 | 南京燧锐科技有限公司 | FDD/TDD dual-mode microwave direct amplification relay station |
| CN115085788A (en) * | 2022-08-23 | 2022-09-20 | 深圳国人无线通信有限公司 | Method and system for adjusting uplink gain of repeater |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007022417A2 (en) * | 2005-08-18 | 2007-02-22 | Wionics Research | Automatic gain control for frequency-hopped ofdm |
| CN101959288B (en) * | 2009-07-15 | 2013-08-21 | 展讯通信（上海）有限公司 | Automatic gain control regulating method for received signals and signal receiving equipment |
| CN201639582U (en) * | 2009-11-23 | 2010-11-17 | 福建京奥通信技术有限公司 | Repeater solving mobile object coverage |
| CN102186233B (en) * | 2011-03-14 | 2014-02-26 | 上海云杉信息科技有限公司 | Rapid automatic gain control method, automatic gain control system and receiver system |
| WO2013063735A1 (en) * | 2011-10-31 | 2013-05-10 | 苏州全波通信技术有限公司 | Adaptive control method of repeater output signal, device thereof, and system |
| CN105992330B (en) * | 2015-01-28 | 2019-10-18 | ***通信集团公司 | A kind of gain adjusting method and device |
-
2017
- 2017-01-09 CN CN201710013155.2A patent/CN108288992B/en active Active
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| CN110474691A (en) * | 2019-08-09 | 2019-11-19 | 三维通信股份有限公司 | Gain control method and device |
| CN110474691B (en) * | 2019-08-09 | 2021-06-25 | 三维通信股份有限公司 | Gain control method and device |
| CN110445562A (en) * | 2019-08-15 | 2019-11-12 | 展讯通信（上海）有限公司 | Gain control method, device, trunking and storage medium |
| CN110445562B (en) * | 2019-08-15 | 2022-02-08 | 展讯通信（上海）有限公司 | Gain control method, device, relay device and storage medium |
| WO2022017151A1 (en) * | 2020-07-23 | 2022-01-27 | 展讯通信（上海）有限公司 | Self-excitation detection method and system for wireless signal relay amplification apparatus |
| CN114567361A (en) * | 2022-04-28 | 2022-05-31 | 南京燧锐科技有限公司 | FDD/TDD dual-mode microwave direct amplification relay station |
| CN114567361B (en) * | 2022-04-28 | 2022-07-15 | 南京燧锐科技有限公司 | FDD/TDD dual-mode microwave direct amplification relay station |
| CN115085788A (en) * | 2022-08-23 | 2022-09-20 | 深圳国人无线通信有限公司 | Method and system for adjusting uplink gain of repeater |
| CN115085788B (en) * | 2022-08-23 | 2022-11-15 | 深圳国人无线通信有限公司 | Method and system for adjusting uplink gain of repeater |
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