CN1305227C - Transmission mode radio communication apparatus capable of detecting communication signal - Google Patents
Transmission mode radio communication apparatus capable of detecting communication signal Download PDFInfo
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- CN1305227C CN1305227C CNB031312705A CN03131270A CN1305227C CN 1305227 C CN1305227 C CN 1305227C CN B031312705 A CNB031312705 A CN B031312705A CN 03131270 A CN03131270 A CN 03131270A CN 1305227 C CN1305227 C CN 1305227C
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Abstract
The present invention provides a radio communication apparatus which comprises an antenna, a radio-frequency reception and transmission module, an A/D converter, a digital signal processing module, a discontinuous transfer mode detection module and an automatic gain control module, wherein the digital signal processing module is used for calculating the signal quality index of reception signals and evaluating the analog signal power input in the A/D converter, the discontinuous transfer mode detection module is used for judging the transmission mode of the communication zone block where the frames received by the radio communication device belong to, the automatic gain control module is used for adjusting the multiplying factor of signals transmitted from the antenna, and the signals are amplified by the radio-frequency reception and transmission module.
Description
Technical field
The present invention relates to a kind of wireless communication apparatus, particularly a kind of transmission mode radio communication apparatus capable of detecting communication signal.
Background technology
In digital radio communication system based on frame, to be data that tendency to develop is sent insert behind a plurality of frames in the mode of bit interleave (Interleaving) load mode and form a plurality of communication data pieces, and transmission end and receiving terminal must be made synchronous modulation and demodulation, and receiving terminal can correctly receive the communication signal that transmit the transmission end.
See also Fig. 1, Fig. 1 be the gsm system of known technology in the framework of 104 frames (B0-B23), the power of the received signal by selecting particular frame is used as the schematic diagram of automatic gain control.Among Fig. 1, the frame that is denoted as S is the SACCH control frame, and the frame that is denoted as I is not for sending the frame (Idleframe) of signal.In the known digital radio communication system, when conveyer enters discontinuous transfer mode, the design of receiver automative interest increasing controlling circuit, be to make automatic gain 12 specific frames in 104 frames of regulation and stipulation carry out automatic gain control, these 12 frames include four SACCH control frames, lay respectively between B5 and the B6, between B11 and the B12, between B17 and the B18 and between the B0 of B23 and next 104 frame frameworks, and eight SID frames (Silence Information Description Frame-SID Frame) that are positioned at B12 and two communication data pieces of B13.And the estimated gain size of the SACCH frame of system between B5 and B6 is the auto-gain setting value as B6-B11; System between B11 and B12 the SACCH frame and the estimated gain size of the SID frame of B12, two communication data pieces of B13 as the auto-gain setting value of B14-B17; The estimated gain size of the SACCH frame of system between B17 and B18 is as the auto-gain setting value of B18-B23; The estimated gain size of the SACCH frame of system between B23 and next 104 frame framework B0 then as next 104 frame frameworks in the auto-gain setting value of B0-B5.
As shown in Figure 1, in the known digital radio communication system, 4 SACCH control frames are only depended in the renewal of its gain size, and 8 SID frames, do not choose the renewal foundation of other frames as the gain size, so its number of taking a sample has only 12 particular frames.Because number of samples is less, therefore cause slower tracking (Tracing) speed, and the accuracy rate of lower adjustment automatic gain.
Summary of the invention
Therefore main purpose of the present invention provides a kind of transmission mode radio communication apparatus capable of detecting communication signal, to address the above problem.
The invention provides a kind of wireless communication apparatus, it comprises: an antenna is used for receiving and transmitting; One radio-frequency (RF) receiving and transmission module is connected in this antenna, is used for amplifying the signal that this antenna receives; One analog-digital converter is connected in this radio-frequency (RF) receiving and transmission module, and being used for the analog signal conversion that this radio-frequency (RF) receiving and transmission module transmits is digital signal; One digital signal processing module is connected in this analog-digital converter, is used for calculating the signal quality index of received signal and the power that the analog signal of this analog-digital converter is imported in estimation according to the digital signal of this analog-digital converter conversion; One discontinuous transfer mode detection module, be connected in this digital signal processing module, be used for the power of analog signal of this analog-digital converter of input of the received signal qualitative index that calculates according to this digital signal processing module and estimation and judge whether the communication data piece under the received frame of receiver is discontinuous transmission mode; One memory, this memory have a permanent data base that is used for storing the pairing parameter of at least one predetermined channel, and are used for a temporary database of the data that temporary this permanent data base transmits; An and automatic gain control module, be connected in this digital signal processing module, this discontinuous transfer mode detection module, this memory and this radio-frequency (RF) receiving and transmission module, be used for the power of analog signal of this analog-digital converter of input of estimating according to this digital signal processing module, the parameter that this memory is stored and this discontinuous transfer mode detection module judge that the transfer mode of the communication data piece under the frame that this wireless communication apparatus receives adjusts the multiplying power that this radio-frequency (RF) receiving and transmission module is amplified the signal that this antenna receives.
The present invention also provides a kind of method of operation of wireless communication apparatus, and this wireless communication apparatus comprises: an antenna; One radio-frequency (RF) receiving and transmission module is connected in this antenna; One analog-digital converter is connected in this radio-frequency (RF) receiving and transmission module; One digital signal processing module is connected in this analog-digital converter; One memory has: a permanent data base, and it comprises a plurality of storage elements, the parameter of the pairing channel of this storage element of each storage unit stores; And a temporary database, it comprises a plurality of memory locations; One automatic gain control module is connected in this digital signal processing module and this radio-frequency (RF) receiving and transmission module; This method comprises the following step: (a) use this antenna receiving signal; (b) use this radio-frequency (RF) receiving and transmission module to amplify the signal that this antenna receives; (c) use this analog-digital converter that the analog signal conversion that this radio-frequency (RF) receiving and transmission module transmits is digital signal; (d) power that uses this digital signal processing module to calculate the signal quality index of this received signal and estimate the analog signal of this analog-digital converter of input according to the digital signal of this analog-digital converter conversion; (e) provide a discontinuous transfer mode detection module that is connected in this digital signal processing module; (f) use this discontinuous transfer mode detection module to judge according to the power of the analog signal of this analog-digital converter of input of this received signal qualitative index that this digital signal processing module calculated and estimation whether the communication data piece under the received frame of receiver is discontinuous transmission mode; And the power that (g) uses the analog signal of this analog-digital converter of input that this automatic gain control module estimates according to this digital signal processing module, the parameter that this memory is stored and this discontinuous transfer mode detection module judge that the transmission mode of the communication data piece under the received frame of this wireless communication apparatus adjusts the multiplying power that this radio-frequency (RF) receiving and transmission module is amplified the signal that this antenna receives.
The present invention also provides a kind of wireless communication apparatus, and it comprises: an antenna is used for receiving and transmitting; One Receiver Module is connected in this antenna, is used for amplifying the signal that this antenna receives; One analog-digital converter is connected in this Receiver Module, and being used for the analog signal conversion that this Receiver Module transmits is digital signal; One digital signal processing module is connected in this analog-digital converter, is used for calculating the signal quality index of received signal and the power that the analog signal of this analog-digital converter is imported in estimation according to the digital signal of this analog-digital converter conversion; One discontinuous transfer mode detection module, be connected in this digital signal processing module, be used for the power of analog signal of this analog-digital converter of input of the received signal qualitative index that calculates according to this digital signal processing module and estimation and judge whether the communication data piece under the received frame of receiver is discontinuous transmission mode; One memory, this memory have a permanent data base that is used for storing the pairing parameter of at least one predetermined channel, and are used for a temporary database of the data that temporary this permanent data base transmits; An and automatic gain control module, be connected in this digital signal processing module, this discontinuous transfer mode detection module, this memory and this Receiver Module, be used for the power of analog signal of this analog-digital converter of input of estimating according to this digital signal processing module, the parameter that this memory is stored and this discontinuous transfer mode detection module judge that the transmission mode of the communication data piece under the frame that this wireless communication apparatus receives adjusts the multiplying power that this Receiver Module amplifies the signal that this antenna receives.
Purpose of the present invention is for providing a kind of wireless communication apparatus, and it comprises: an antenna is used for receiving communication signal; One radio-frequency (RF) receiving and transmission module is connected in this antenna, is used for receiving or emitting radio frequency signal; One analog-digital converter is connected in this radio-frequency (RF) receiving and transmission module, and being used for the analog signal conversion that this radio-frequency (RF) receiving and transmission module transmits is digital signal; One digital signal processing module is connected in this analog-digital converter, is used for according to the digital signal signal calculated qualitative index of this analog-digital converter conversion and estimates the power of the analog signal of this analog-digital converter of input; One discontinuous transfer mode detection module, be connected in this digital signal processing module, the power of the analog signal of this analog-digital converter of input that is used for the signal quality index that calculates according to this digital signal processing module and estimates judges whether the communication data piece under the received frame of this wireless communication apparatus is discontinuous transmission mode; An and automatic gain control module, be connected in this digital signal processing module, this discontinuous transfer mode detection module and this radio-frequency (RF) receiving and transmission module, be used for the signal power of this analog-digital converter of input of estimating according to this digital signal processing module and the transfer mode of the communication data piece under should the discontinuous transfer mode detection module judgement receiver received frame, adjust the multiplying power that this radio-frequency (RF) receiving and transmission module is amplified the signal that this antenna receives.
Another object of the present invention is for providing a kind of wireless communication apparatus, and it comprises: an antenna (antenna) is used for receiving and transmitting; One Receiver Module (RF receiver subsystem) is connected in this antenna, is used for amplifying the signal that this antenna receives; One analog-digital converter (ADC, Analog-Digital Converter) is connected in this radio-frequency (RF) receiving and transmission module, and being used for the analog signal conversion that this Receiver Module transmits is digital signal; One digital signal processing module (DSP Subsystem), be connected in this analog-digital converter, be used for calculating the signal quality index of received signal and the power that the analog signal of this analog-digital converter is imported in estimation according to the digital signal of this analog-digital converter conversion; One discontinuous transfer mode detection module (DTX Detection), be connected in this digital signal processing module, be used for the power of analog signal of this analog-digital converter of input of the received signal qualitative index that calculates according to this digital signal processing module and estimation and judge whether the communication data piece under the received frame of receiver (Frame) is discontinuous transmission mode (DTX); An and automatic gain control module (AGC Control), be connected in this digital signal processing module, this discontinuous transfer mode detection module and this Receiver Module are used for the transmission mode of the communication data piece under the frame that the power of analog signal of this analog-digital converter of input of estimating according to this digital signal processing module and this discontinuous transfer mode detection module judge that this wireless communication apparatus receives to adjust the multiplying power that this Receiver Module amplifies the signal that this antenna receives.
Another object of the present invention is for providing a kind of method of operation of wireless communication apparatus, and this wireless communication apparatus comprises: an antenna; One radio-frequency (RF) receiving and transmission module is connected in this antenna; One analog-digital converter is connected in this radio-frequency (RF) receiving and transmission module; One digital signal processing module is connected in this analog-digital converter; One automatic gain control module is connected in this digital signal processing module and this radio-frequency (RF) receiving and transmission module; This method comprises the following step: (a) use this antenna to receive communication signal; (b) use this radio-frequency (RF) receiving and transmission module to amplify the communication signal that this antenna receives; (c) use this analog-digital converter, the analog signal conversion that this radio-frequency (RF) receiving and transmission module is transmitted is a digital signal; (d) use this digital signal processing module, the digital signal of changing according to this analog-digital converter, the power that comes the signal calculated qualitative index and estimate the analog signal of this analog-digital converter of input; (e) provide a discontinuous transfer mode detection module that is connected in this digital signal processing module; (f) use this discontinuous transfer mode detection module, according to the power of the analog signal of this analog-digital converter of input of signal quality index that this digital signal processing module calculated and estimation, judge whether the communication data piece under the received frame of this wireless communication apparatus is discontinuous transmission mode; And (g) use the power of analog signal of this analog-digital converter of input that this automatic gain control module estimates according to this digital signal processing module and this discontinuous transfer mode detection module to judge the pattern of the communication data piece under the received frame of this wireless communication apparatus, adjust the multiplying power that this radio-frequency (RF) receiving and transmission module is amplified the signal that this antenna receives.
Description of drawings
Fig. 1 is the schematic diagram of the gsm system 104 frame frameworks of known technology.
Fig. 2 is the function block schematic diagram of wireless communication apparatus.
Fig. 3 is the functional block diagram of the memory of wireless communication apparatus.
Fig. 4 is the flow chart of wireless communication apparatus.
Fig. 5 is the flow chart of step 108 among Fig. 4.
Fig. 6 is the schematic diagram of first embodiment of the invention step 110 in Fig. 4.
Fig. 7 is the schematic diagram of second embodiment of the invention step 110 in Fig. 4.
Fig. 8 is the schematic diagram of third embodiment of the invention step 110 in Fig. 4.
The drawing reference numeral explanation:
8 wireless communication apparatus, 10 antennas
12 radio-frequency (RF) receiving and transmission module, 14 analog-digital converters
16 digital signal processing modules
18 discontinuous transfer mode detection modules
19 counters, 20 automatic gain control modules
22 memories, 24 permanent data bases
First storage element of 24a permanent data base
Second storage element of 24b permanent data base
The 3rd storage element of 24c permanent data base
The 4th storage element of 24d permanent data base
26 temporary databases
First memory location of the temporary database of 26a
Second memory location of the temporary database of 26b
The 3rd memory location of the temporary database of 26c
The 4th memory location of the temporary database of 26d
First memory location of the temporary database of 26e
Second memory location of the temporary database of 26f
The 3rd memory location of the temporary database of 26g
The 4th memory location of the temporary database of 26h
Embodiment
See also Fig. 2 and Fig. 3, Fig. 2 is the functional block diagram of wireless communication apparatus 8 of the present invention.Fig. 3 is the functional block diagram of the memory 22 of wireless communication apparatus 8.Wireless communication apparatus 8 comprises an antenna 10 and is used for receiving communication signal; One radio-frequency (RF) receiving and transmission module 12 is connected in antenna 10, is used for receiving or emitting radio frequency signal, and when received RF signal, but radio-frequency (RF) receiving and transmission module 12 filtering noises, this radiofrequency signal of frequency reducing and amplify this radiofrequency signal; One analog-digital converter 14 is connected in this radio-frequency (RF) receiving and transmission module 12, and being used for the analog signal conversion that this radio-frequency (RF) receiving and transmission module 12 transmits is digital signal; One digital signal processing module 16 is connected in analog-digital converter 14, is used for calculating the signal quality index of received signal and the power that the analog signal of analog-digital converter 14 is imported in estimation; One discontinuous transfer mode detection module 18 is connected in digital signal processing module 14, be used for the power of analog signal of input analog-digital converter 14 of the signal quality index that calculated according to digital signal processing module 14 and estimation, judge whether the communication data pieces under the received frame of wireless communication apparatus 8 are discontinuous transmission mode; One automatic gain control module 20, be connected in digital signal processing module 16, discontinuous transfer mode detection module 18 and radio-frequency (RF) receiving and transmission module 12, being used for the power of analog signal of the input analog-digital converter 14 estimated according to digital signal processing module 16 and discontinuous transfer mode detection module 18 judges the transfer mode of the communication data piece under the received frame of wireless communication apparatus 8, adjusts the multiplying power that radio-frequency (RF) receiving and transmission module 12 is amplified the signal that antennas 10 receive; One memory 22, this memory 22 comprise a permanent data base 24 and are used for storing the pairing parameter of at least one predetermined channel, and comprise a temporary database 26 and be used for the data that temporary permanent data base 24 transmits.Discontinuous transfer mode detection module 18 comprises a counter 19, and the power that is used for calculating signal quality index that several frames are arranged in the communication data piece and pairing analog signal thereof meets a predetermined criterion.
See also Fig. 4, Fig. 4 is the flow chart of wireless communication apparatus 8 first embodiment.The transmission mode of its detection signal comprises the following step:
Step 100: use antenna 10 received signals.
Step 102: use radio-frequency (RF) receiving and transmission module 12 to amplify the communication signal that antenna 10 receives.
Step 104: use analog-digital converter 14 that the analog signal conversion that radio-frequency (RF) receiving and transmission module 12 transmits is digital signal.
Step 106: the digital signal of using digital signal processing module 16 to transmit according to analog-digital converter 14, calculate the signal quality index of received signal and the power that the analog signal of analog-digital converter 14 is imported in estimation.
Step 108: use the power of analog signal of the input analog-digital converter 14 of the signal quality index of the received signal that discontinuous transfer mode detection module 18 calculated according to digital signal processing module 16 and estimation to judge whether the communication data piece under the received frame of wireless communication apparatus 8 is discontinuous transmission mode.
Step 110: use the power of analog signal of the input analog-digital converter 14 that automatic gain control module 20 estimates according to digital signal processing module 16 and discontinuous transfer mode detection module 18 to judge that the mode adjustment radio-frequency (RF) receiving and transmission module 12 of the communication data piece under the received frame of receivers amplifies the multiplying power of the signal that antennas 10 are received.
See also Fig. 5, in Fig. 5 step display 108, discontinuous transfer mode detection module 18 judges whether the communication data piece under the received frame of receiver is the step of discontinuous transmission mode:
Step 120: before receiving a communication data piece that newly advances, counter 19 is made zero.
Step 122: the next frame that receives this communication data piece.
Step 124: whether the signal quality index (it can be Signal-to-Noise) of judging this frame is greater than a predetermined value, and whether the signal power of this frame is between a predetermined interval (the linear operation interval of analog-digital converter 14).
Step 126: if the signal quality index of this frame is greater than this predetermined value, and the signal power of this frame is between this predetermined interval, and then the count value with this counter 19 adds 1.
Step 128: judge this frame whether be this communication data piece the 4th frame (as shown in Figure 1, each communication data piece has four frames, therefore the 4th frame of this communication data piece is the last frame of this communication data piece), if this frame is not the 4th frame of this communication data piece, then get back to step 122; If this frame is the 4th frame of this communication data piece, then carry out step 130.
Step 130: whether greater than a preset value, judge whether this communication data piece is a discontinuous transfer mode communication data piece according to the count value of counter 19.
Step 132: if the count value of counter 19 judges then that greater than this preset value this communication data piece is a continuous transfer mode communication data piece.
Step 134: if the count value of counter 19 judges then that as yet not greater than this preset value this communication data piece is a discontinuous transfer mode communication data piece.
See also Fig. 6, Fig. 6 shows first kind of schematic diagram that carries out step 110 of the present invention.In the present embodiment, persistent database 24 includes four storage elements, it is 24a, 24b, 24c and 24d, temporary database 16 comprises four memory locations, it is 26a, 26b, 26c and 26d, when desire receives a communication data piece, calculate the required loop gain of radio-frequency (RF) receiving and transmission module 12 according to the original parameters in the permanent data base 24, and adjust the multiplying power that radio-frequency (RF) receiving and transmission module 12 is amplified first frame signal in the communication data piece that antennas 10 are received, automatic gain control module 20 desires to finish the operation that radio-frequency (RF) receiving and transmission module 12 is amplified the multiplying power of the signal that antennas 10 transmit, the first original parameter in the first storage element 24a of channel that must be earlier that the frequency hopping rule of following according to transmission end in the communications protocol and receiving terminal in the permanent data base 24 is specified, be stored among the first memory location 26a of temporary database 26, treat that digital signal processing module 16 estimates after the analog signal power of first frame signal input analog-digital converter 14, the weights of the difference of the power of the signal of the input analog-digital converter 14 that automatic gain control module 20 is estimated with the weights of the first original parameter of the first storage element 24a and digital signal processing module 16 and the loop gain of automatic gain control module 20 are produced one first mutually and are upgraded parameter, and will upgrade among the first storage element 24a that parameter deposits the former storage first original parameter in.
When receiving next frame, the second original parameter in the second storage element 24b of the channel that automatic gain control module 20 is specified with the frequency hopping rule of following according to transmission end in the communications protocol and receiving terminal in the permanent data base 24, be stored among the second memory location 26b of temporary database 26, and the weights of the second original parameter and digital signal processing module 16 are produced one second according to the weights addition of the difference of the loop gain of the power of the analog communication signal of the estimated input analog-digital converter 14 of the frame that is received and automatic gain control module 20 upgrade parameter, and it is stored among the second storage element 24b of permanent data base 24, because present embodiment is for being implemented in the gsm system, and the base unit of discontinuous transfer mode detection module 18 its detecting operations is four frames (i.e. communication data pieces), so continuous four times of operation meeting, the communication data piece of forming until four frames thus is judged as discontinuous transfer mode, the data that then are stored in temporary database 26 first to fourth memory locations can be stored back in first to fourth storage element of permanent data base 24 respectively, if the communications zone that these four frames are formed is judged as continuous transfer mode, the data that then are stored in temporary database 26 first to fourth memory locations can not returned first to fourth storage element that deposits permanent data base 24 in.Therefore, when a communication data piece is judged as continuous transfer mode, the parameter of the storage element in the permanent data base 24 can be updated, and when a communication data piece was judged as discontinuous transfer mode, the parameter of the storage element in the permanent data base 24 can not be updated.
In this embodiment, suppose to have the channel of 16 appointments according to the frequency hopping rule that transmission end in the communications protocol and receiving terminal are followed, then the stored parameter of first to fourth storage element of permanent data base 24 is the parameter corresponding to four channels in these 16 channels, therefore, when a communication data piece is judged as continuous transfer mode, automatic gain control module 20 only can be upgraded the parameter of four storage elements in the permanent data base 24, rather than upgrades the parameter of all (the 16) storage elements in the permanent data base 24.
See also Fig. 7, Fig. 7 shows second kind of schematic diagram that carries out step 110 of the present invention.In the present embodiment, a plurality of frames of gsm system are to transmit by same channel, so persistent database 24 only has an original parameter, yet 26 of temporary databases comprise a plurality of memory locations, it is 26e, 26f, 26g and 26h, be used for temporarily storing the parameter that permanent data base 24 transmits, when desire receives a communication data piece, calculate the required loop gain of radio-frequency (RF) receiving and transmission module 12 according to the original parameters in the permanent data base 24, and adjustment radio-frequency (RF) receiving and transmission module 12 is amplified the multiplying power of antenna 10 first frame signals in the communication data piece that receive, as shown in Figure 7, automatic gain control module 20 desires to finish the operation that radio-frequency (RF) receiving and transmission module 12 is amplified the multiplying power of the signal that antennas 10 transmit, the original parameter that then must be earlier permanent data base 24 be stored, be stored among the first memory location 26e of temporary database 26, treat that digital signal processing module 16 estimates after the analog signal power of first frame signal input analog-digital converter 14, weights and digital signal processing module 16 that automatic gain control module 20 will be stored in the original parameter of permanent data base 24 are produced one first mutually at the weights of the difference of the loop gain of the power of the analog signal of the estimated input analog-digital converter 14 of the frame that this channel received and automatic gain control module 20 and are upgraded parameter, and this first is upgraded parameter and deposit in the permanent data base 24, and automatic gain control module 20 can be upgraded parameters according to first in the permanent data base 24 and adjusts the multiplying power that radio-frequency (RF) receiving and transmission module 12 are amplified the signal that antennas transmit.Next, the parameter that permanent data base 24 stores can deposit among the second memory location 26f of temporary database 26, treat that digital signal processing module 16 estimates after the analog signal power of second frame signal input analog-digital converter 14, weights and digital signal processing module 16 that automatic gain control module 20 will be stored in the parameter of permanent data base 24 are produced the second renewal parameter according to it mutually according to the weights in the power of the signal of the estimated input analog-digital converter 14 of the frame that this channel received and the difference of the loop gain of automatic gain control module 20, and this second is upgraded parameter and deposit in the permanent data base 24, and automatic gain control module 20 is upgraded parameters according to second in the permanent data base 24 and is adjusted the multiplying power that radio-frequency (RF) receiving and transmission module 12 are amplified the signal that antennas 10 transmit.Because of present embodiment is the 104 frame frameworks that are implemented on gsm system, wherein each communication data piece is made up of four frames, so continuous four times of operation meeting, the communication data piece of forming until these four frames is judged as discontinuous transfer mode, the data that then are stored among the first memory location 26e of temporary database 26 can be stored back permanent data base 24, if the communication data piece that these four frames are formed is judged as continuous transfer mode, the data that then are stored among the first memory location 26e of temporary database 26 can not be stored back in the permanent data base 24, the 4th are upgraded the original parameter that parameter promptly can become next communication data piece and automatic gain control module 20 produces.
See also Fig. 8, Fig. 8 shows the present invention, and the third carries out the schematic diagram of step 110.The principle of present embodiment and method of operation and first embodiment, second embodiment is similar, so not in this detailed description, present embodiment is for being second kind of design by same channel transmitted at a plurality of frames, so permanent data base 24 only stores an original parameter, this original parameter is the default gain size of communication signal in channel, temporary database 26 is for being used for temporarily storing the original parameter of permanent data base 24, when desire receives a communication data piece, adjust the multiplying power that radio-frequency (RF) receiving and transmission module 12 are amplified the signal that antennas 10 transmit, the multiplying power of first frame signal in the communication data piece that receives according to the original parameters in the permanent data base 24.Automatic gain control module 20 desires to finish the operation that radio-frequency (RF) receiving and transmission module 12 is amplified the multiplying power of the signal that antennas 10 transmit, the original parameter that must earlier permanent data base 24 be stored is stored in temporary database 26, treat that digital signal processing module 16 estimates after the analog signal power of first frame signal input analog-digital converter 14, the weights of the difference of the power of the signal of the input analog-digital converter 14 that the frame that original parameter received that the weights of the original parameter that automatic gain control module 20 stores permanent data base 24 and digital signal processing module 16 store according to permanent data base 24 is estimated and the loop gain of automatic gain control module 20 are produced one first renewal parameter mutually, and upgrade parameter with first and deposit in the permanent data base 24, and automatic gain control module 20 is adjusted the multiplying power that radio-frequency (RF) receiving and transmission module 12 is amplified the signal that antennas 10 transmit according to the parameter that is stored in permanent data base 24, when receiving next frame, automatic gain control module 20 with permanent data base 24 stored first upgrade parameter and digital signal processing module 16 according to the power of the analog signal of the estimated input analog-digital converter 14 of the frame that is received and the weights addition generation second renewal parameter of the difference of the loop gain of automatic gain control module 20, and it is stored in permanent data base 24, because of present embodiment for being implemented in the gsm system, then this flow process is a circulation with four frames, in a communication data piece, except when receiving first frame, need the original parameter in the permanent data base 24 is stored to outside the temporary database 26, the neither parameter that it must be upgraded of all the other frames that belongs to same communication data piece deposits in the temporary database 26, the communication data piece of forming until these four frames is judged as discontinuous transfer mode, and the data that then are stored in the temporary database 26 can be stored back permanent data base 24; If the communication data piece that these four frames are formed is judged as continuous transfer mode, then automatic gain control module 20 can not deposited back permanent data base 24 with the original parameter that is stored in the temporary database 26, thus automatic gain control module 20 produced the 4th upgrade the original parameter that parameter can become next communication data piece.
Above embodiment is with general wireless communication apparatus, for example: the mobile phone that meets the GSM/GPRS system specification is an example, therefore wherein comprises a radio-frequency (RF) receiving and transmission module 12 with complete reception and the emission work of carrying out radiofrequency signal.Owing to the invention is characterized in whether detect received signal belongs to discontinuous transfer mode, therefore also be applicable to the wireless communication apparatus that Receiver Module, radiofrequency emitting module branch are arranged, also be applicable to and only contain Receiver Module, but do not contain the uni-directional wireless communication device of radiofrequency emitting module.
Compared to known technology, the present invention be desire to make full use of gsm system 104 frame frameworks reach other non-frames (Idle frame) that does not send signal except 12 necessary transmission the frames, add discontinuous transfer mode measuring ability at the automative interest increasing controlling circuit framework, needn't know the frame position of necessary transmission in advance, but the power estimated value of the frame of all receptions all is used as automatic gain control, cooperating discontinuous transfer mode to detect again revises, if the present invention applies under the discontinuous transfer mode in the gsm system, then can Duo about 88 frame samples (except that the Idle frame) than per 104 frames of known design mode, and not only be to use 12 specific frames as automatic ride gain, therefore tracking speed is fast, accuracy also improves thereupon, this kind design is in its power attenuation of communication signal that wireless communication apparatus received, not only can judge the background noise in channel when this signal is not discontinuous transfer mode, and because the present invention is used for automatic gain control with each frame, so can follow the trail of the communication signal that is received fast, the instant gain size that changes is to promote communication quality.
The above only is preferred embodiment of the present invention, and all equalizations of doing according to claim of the present invention change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (11)
1. wireless communication apparatus, it comprises:
One antenna is used for receiving and transmitting;
One radio-frequency (RF) receiving and transmission module is connected in this antenna, is used for amplifying the signal that this antenna receives;
One analog-digital converter is connected in this radio-frequency (RF) receiving and transmission module, and being used for the analog signal conversion that this radio-frequency (RF) receiving and transmission module transmits is digital signal;
One digital signal processing module is connected in this analog-digital converter, is used for calculating the signal quality index of received signal and the power that the analog signal of this analog-digital converter is imported in estimation according to the digital signal of this analog-digital converter conversion;
One discontinuous transfer mode detection module, be connected in this digital signal processing module, be used for the power of analog signal of this analog-digital converter of input of the received signal qualitative index that calculates according to this digital signal processing module and estimation and judge whether the communication data piece under the received frame of receiver is discontinuous transmission mode;
One memory, this memory have a permanent data base that is used for storing the pairing parameter of at least one predetermined channel, and are used for a temporary database of the data that temporary this permanent data base transmits; And
One automatic gain control module, be connected in this digital signal processing module, this discontinuous transfer mode detection module, this memory and this radio-frequency (RF) receiving and transmission module, be used for the power of analog signal of this analog-digital converter of input of estimating according to this digital signal processing module, the parameter that this memory is stored and this discontinuous transfer mode detection module judge that the transfer mode of the communication data piece under the frame that this wireless communication apparatus receives adjusts the multiplying power that this radio-frequency (RF) receiving and transmission module is amplified the signal that this antenna receives.
2. wireless communication apparatus as claimed in claim 1, wherein this discontinuous transfer mode detection module also comprises a counter, is used for calculating the number that meets the frame of a preassigned in the communication data piece.
3. wireless communication apparatus as claimed in claim 1, it is a mobile radio telephone.
4. the method for operation of a wireless communication apparatus, this wireless communication apparatus comprises:
One antenna;
One radio-frequency (RF) receiving and transmission module is connected in this antenna;
One analog-digital converter is connected in this radio-frequency (RF) receiving and transmission module;
One digital signal processing module is connected in this analog-digital converter;
One memory has: a permanent data base, and it comprises a plurality of storage elements, the parameter of the pairing channel of this storage element of each storage unit stores; And a temporary database, it comprises a plurality of memory locations;
One automatic gain control module is connected in this digital signal processing module and this radio-frequency (RF) receiving and transmission module;
This method comprises the following step:
(a) use this antenna receiving signal;
(b) use this radio-frequency (RF) receiving and transmission module to amplify the signal that this antenna receives;
(c) use this analog-digital converter that the analog signal conversion that this radio-frequency (RF) receiving and transmission module transmits is digital signal;
(d) power that uses this digital signal processing module to calculate the signal quality index of this received signal and estimate the analog signal of this analog-digital converter of input according to the digital signal of this analog-digital converter conversion;
(e) provide a discontinuous transfer mode detection module that is connected in this digital signal processing module;
(f) use this discontinuous transfer mode detection module to judge according to the power of the analog signal of this analog-digital converter of input of this received signal qualitative index that this digital signal processing module calculated and estimation whether the communication data piece under the received frame of receiver is discontinuous transmission mode; And
(g) use the power of the analog signal of this analog-digital converter of input that this automatic gain control module estimates according to this digital signal processing module, the parameter that this memory is stored and this discontinuous transfer mode detection module judge that the transmission mode of the communication data piece under the received frame of this wireless communication apparatus adjusts the multiplying power that this radio-frequency (RF) receiving and transmission module is amplified the signal that this antenna receives.
5. method as claimed in claim 4, wherein step (f) comprises:
One counter is provided;
Before this digital signal processing module desire receives a communication data piece, this counter is made zero;
If the received signal qualitative index that this discontinuous transfer mode detection module detects the frame of the received signal of this digital signal processing module is greater than a critical value, and the power of the analog signal of this analog-digital converter of input that this digital signal processing module is estimated is between a predetermined interval, then increases the count value of this counter;
If the count value of this counter then uses this discontinuous transfer mode detection module to judge that this communication data piece is continuous transmission mode greater than a predetermined value; And
If this communication data piece of the complete reception of this digital signal processing module, and the count value of this counter then uses this discontinuous transfer mode detection module to judge that this communication data piece is discontinuous transmission mode as yet not greater than this predetermined value.
6. method as claimed in claim 4,
Wherein step (g) comprises:
Earlier the original parameter in the storage element of corresponding one channel of being scheduled in this permanent data base is stored in a memory location of this temporary database; Use this automatic gain control module that the weights of the original parameter of this storage element and this digital signal processing module are produced one mutually at the weights of the difference of the loop gain of the power of the analog signal of estimated this analog-digital converter of input of the frame that this channel and this original parameter received and this automatic gain control module afterwards and upgrade parameter, and should upgrade parameter and deposit this storage element in;
If the communication data piece under this frame is a discontinuous transmission mode, the original parameter that then will be stored in this memory location deposits this storage element in afterwards; And
Adjust the multiplying power that this radio-frequency (RF) receiving and transmission module is amplified the signal that this antenna receives according to the parameter in this storage element.
7. method as claimed in claim 4,
Wherein step (g) comprises:
Earlier the original parameter in this permanent data base is stored in a memory location of this temporary database; Use this automatic gain control module that the weights of the original parameter of this permanent data base and this digital signal processing module are produced a renewal parameter mutually according to its weights according to the difference of the loop gain of the power of the analog signal of estimated this analog-digital converter of input of the frame that this original parameter received and this automatic gain control module afterwards, and should upgrade parameter and deposit this permanent data base in;
If the communication data piece under this frame is a discontinuous transmission mode, the original parameter that then will be stored in this memory location deposits this permanent data base in afterwards; And
Adjust the multiplying power that this radio-frequency (RF) receiving and transmission module is amplified the signal that this antenna transmits according to the parameter in this permanent data base.
8. method as claimed in claim 4,
Wherein step (g) comprises:
According to first frame in the communication data piece that original parameter received of this permanent data base, earlier the original parameter in this permanent data base is stored in this temporary database at this digital signal processing module; Use this automatic gain control module that the weights of the original parameter of this permanent data base and this digital signal processing module are produced one mutually according to the weights of the difference of the loop gain of the power of the analog signal of estimated this analog-digital converter of input of this first frame and this automatic gain control module afterwards and upgrade parameter, and should upgrade parameter and deposit this permanent data base in;
At other each frames in this digital signal processing module foundation one renewal this communication data piece that parameter received, export the renewal parameter that is stored in this permanent data base to this automatic gain control module, the weights of this renewal parameter and this digital signal processing module are produced another mutually according to the weights of the difference of the loop gain of the power of the analog signal of estimated this analog-digital converter of input of this frame and this automatic gain control module upgraded parameter, and upgrade parameter with this another and deposit this permanent data base in;
If this communication data piece is a discontinuous transmission mode, the original parameter that then will be stored in this temporary database deposits this permanent data base in afterwards; And
Adjust the multiplying power that this radio-frequency (RF) receiving and transmission module is amplified the signal that this antenna transmits according to the parameter in this permanent data base.
9. method as claimed in claim 4, wherein this wireless communication apparatus is a mobile radio telephone.
10. wireless communication apparatus, it comprises:
One antenna is used for receiving and transmitting;
One Receiver Module is connected in this antenna, is used for amplifying the signal that this antenna receives;
One analog-digital converter is connected in this Receiver Module, and being used for the analog signal conversion that this Receiver Module transmits is digital signal;
One digital signal processing module is connected in this analog-digital converter, is used for calculating the signal quality index of received signal and the power that the analog signal of this analog-digital converter is imported in estimation according to the digital signal of this analog-digital converter conversion;
One discontinuous transfer mode detection module, be connected in this digital signal processing module, be used for the power of analog signal of this analog-digital converter of input of the received signal qualitative index that calculates according to this digital signal processing module and estimation and judge whether the communication data piece under the received frame of receiver is discontinuous transmission mode;
One memory, this memory have a permanent data base that is used for storing the pairing parameter of at least one predetermined channel, and are used for a temporary database of the data that temporary this permanent data base transmits; And
One automatic gain control module, be connected in this digital signal processing module, this discontinuous transfer mode detection module, this memory and this Receiver Module, be used for the power of analog signal of this analog-digital converter of input of estimating according to this digital signal processing module, the parameter that this memory is stored and this discontinuous transfer mode detection module judge that the transmission mode of the communication data piece under the frame that this wireless communication apparatus receives adjusts the multiplying power that this Receiver Module amplifies the signal that this antenna receives.
11. wireless communication apparatus as claimed in claim 10, wherein this discontinuous transfer mode detection module also comprises a counter, is used for calculating the number that meets the frame of a preassigned in the communication data piece.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB031312705A CN1305227C (en) | 2003-05-12 | 2003-05-12 | Transmission mode radio communication apparatus capable of detecting communication signal |
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| CNB031312705A CN1305227C (en) | 2003-05-12 | 2003-05-12 | Transmission mode radio communication apparatus capable of detecting communication signal |
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| CN1549457A CN1549457A (en) | 2004-11-24 |
| CN1305227C true CN1305227C (en) | 2007-03-14 |
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| FR2893466B1 (en) * | 2005-11-17 | 2008-01-04 | Tdf Sa | TRANSMITTING ANTENNA SYSTEMS ADAPTIVE TO CONDITIONS OF PROPAGATION FOR RADIO BROADCASTING |
| CN101606412B (en) * | 2007-02-09 | 2016-08-17 | 艾利森电话股份有限公司 | Method and apparatus for discriminating between control messages Yu speech payload |
| CN109451573B (en) * | 2018-12-25 | 2021-05-28 | 京信通信***（中国）有限公司 | AGC control method, device and system with self-adjusting gain distribution |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074318A (en) * | 1991-12-30 | 1993-07-14 | 莫托罗拉公司 | The gain control circuit of radio transmitter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1074318A (en) * | 1991-12-30 | 1993-07-14 | 莫托罗拉公司 | The gain control circuit of radio transmitter |
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