TWI386011B - System and method for adjusting a time of global positioning system in a code division multiple access mobile phone - Google Patents
System and method for adjusting a time of global positioning system in a code division multiple access mobile phone Download PDFInfo
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本發明涉及一種CDMA手機GPS時間校準系統及方法。The invention relates to a GPS time calibration system and method for a CDMA mobile phone.
GPS(Global Positioning System，全球定位系統)，它能為用戶提供全球性、全天候、連續、即時、高精度的三維座標、三向速度和時間資訊。CDMA(Code Division Multiple Access，碼分多址)手機係採用CDMA技術的手機，其具有話音清晰、不易掉話、發射功率低和保密性強等特點，發射功率只有GSM(Global System for Mobile communication，全球移動通信系統)手機發射功率的1/60。因此，CDMA手機比GSM手機對人體的輻射小的多。GPS (Global Positioning System), which provides users with global, all-weather, continuous, instantaneous, high-precision 3D coordinates, three-way speed and time information. CDMA (Code Division Multiple Access) mobile phone is a mobile phone with CDMA technology, which has the characteristics of clear voice, not easy to drop calls, low transmission power and strong confidentiality. The transmission power is only GSM (Global System for Mobile communication). , Global Mobile Telecommunications System) 1/60 of the mobile phone's transmit power. Therefore, CDMA mobile phones have much less radiation to the human body than GSM mobile phones.
內建有GPS功能的CDMA手機，其CDMA訊號與GPS訊號可以同時並存。但是由於CDMA訊號與GPS訊號的路徑不同，在CDMA手機內CDMA訊號與GPS訊號或多或少存在時間差，並非同步進行，如此造成GPS定位不精確。A CDMA mobile phone with a built-in GPS function can coexist with both the CDMA signal and the GPS signal. However, due to the different paths of the CDMA signal and the GPS signal, the CDMA signal and the GPS signal in the CDMA mobile phone have more or less time difference, which is not synchronized, which causes the GPS positioning to be inaccurate.
鑒於以上內容，有必要提供一種CDMA手機GPS時間校準系統及方法，其可校準CDMA手機內CDMA訊號與GPS訊號之間的時間差，使CDMA訊號與GPS訊號同步，提高GPS定位的精確度。In view of the above, it is necessary to provide a CDMA mobile phone GPS time calibration system and method, which can calibrate the time difference between the CDMA signal and the GPS signal in the CDMA mobile phone, synchronize the CDMA signal with the GPS signal, and improve the accuracy of the GPS positioning.
一種CDMA手機GPS時間校準系統，該系統包括依次相連的CDMA通訊測試儀，GPS模擬器，整合器，CDMA手機及電腦，所述之CDMA通訊測試儀還與所述之整合器相連，所述之CDMA通訊測試儀包括：週期波輸出模組，用於產生週期波，並將所產生的週期波輸出給GPS模擬器；CDMA射頻信號輸出模組，用於產生CDMA射頻信號，並將所產生的CDMA射頻信號輸出給整合器；CDMA時延記錄模組，用於記錄輸出週期波與輸出CDMA射頻信號之間的時間差值；所述之GPS模擬器包括：週期波接收模組，用於接收CDMA通訊測試儀傳送過來的週期波；GPS射頻信號輸出模組，用於產生GPS射頻信號，並將所產生的GPS射頻信號輸出給整合器；GPS時延記錄模組，用於記錄接收週期波與輸出GPS射頻信號之間的時間差值；所述之整合器用於整合CDMA通訊測試儀傳送過來的CDMA射頻信號及GPS模擬器傳送過來的GPS射頻信號，並將整合後的射頻信號輸出給CDMA手機；所述之CDMA手機包括：解調模組，用於解調整合後的射頻信號，獲取所整合的CDMA射頻信號與GPS射頻信號之間的時間差值；發送模組，還用於將CDMA射頻信號與GPS射頻信號之間的時間差值傳送給電腦；及所述之電腦包括：計算模組，用於根據CDMA射頻信號與GPS射頻信號之間的時間差值，CDMA時延記錄模組所記錄的輸出週期波與輸出CDMA射頻信號之間的時間差值及GPS時延記錄模組所記錄的接收週期波與輸出GPS射頻信號之間的時間差值計算CDMA手機內CDMA訊號與GPS訊號之間的時延，並依此校準CDMA手機內的CDMA訊號與GPS訊號以使其同步。A CDMA mobile phone GPS time calibration system, comprising: a CDMA communication tester, a GPS simulator, an integrator, a CDMA mobile phone and a computer connected in sequence, wherein the CDMA communication tester is further connected to the integrator, The CDMA communication tester includes: a periodic wave output module for generating a periodic wave, and outputting the generated periodic wave to a GPS simulator; a CDMA RF signal output module for generating a CDMA RF signal, and generating the generated The CDMA radio frequency signal is output to the integrator; the CDMA delay recording module is configured to record the time difference between the output periodic wave and the output CDMA radio frequency signal; the GPS simulator includes: a periodic wave receiving module for receiving A periodic wave transmitted by the CDMA communication tester; a GPS RF signal output module for generating a GPS RF signal, and outputting the generated GPS RF signal to the integrator; a GPS delay recording module for recording and receiving periodic waves The time difference between the output and the GPS RF signal; the integrator is used to integrate the CDMA RF signal transmitted by the CDMA communication tester and the GPS RF transmitted by the GPS simulator. Signaling and outputting the integrated radio frequency signal to the CDMA mobile phone; the CDMA mobile phone includes: a demodulation module for demodulating the integrated radio frequency signal to obtain an integrated CDMA radio frequency signal and a GPS radio frequency signal a time difference; the transmitting module is further configured to transmit a time difference between the CDMA RF signal and the GPS RF signal to the computer; and the computer comprises: a computing module, configured to use the CDMA RF signal and the GPS RF signal The time difference between the output period wave recorded by the CDMA delay recording module and the output CDMA RF signal and the received periodic wave and the output GPS RF signal recorded by the GPS delay recording module The time difference is used to calculate the delay between the CDMA signal and the GPS signal in the CDMA mobile phone, and the CDMA signal and the GPS signal in the CDMA mobile phone are calibrated accordingly to synchronize.
一種CDMA手機GPS時間校準方法，該方法透過依次相連的CDMA通訊測試儀，GPS模擬器，整合器，CDMA手機及電腦對CDMA手機內GPS時間進行校準，所述CDMA通訊測試儀還與所述之整合器相連，該方法包括如下步驟：透過CDMA通訊測試儀產生週期波，並將所產生的週期波輸出給GPS模擬器；透過CDMA通訊測試儀產生CDMA射頻信號，並將所產生的CDMA射頻信號輸出給整合器；記錄CDMA通訊測試儀輸出週期波與輸出CDMA射頻信號之間的時間差值；透過GPS模擬器接收CDMA通訊測試儀傳送過來的週期波；透過GPS模擬器產生GPS射頻信號，並將所產生的GPS射頻信號輸出給整合器；記錄GPS模擬器接收週期波與輸出GPS射頻信號之間的時間差值；透過整合器整合CDMA通訊測試儀傳送過來的CDMA射頻信號及GPS模擬器傳送過來的GPS射頻信號，並將整合後的射頻信號輸出給CDMA手機；透過CDMA手機解調整合後的射頻信號，獲取所整合的CDMA射頻信號與GPS射頻信號之間的時間差值；將CDMA射頻信號與GPS射頻信號之間的時間差值傳送給電腦；及電腦根據CDMA射頻信號與GPS射頻信號之間的時間差值、CDMA通訊測試儀輸出週期波與輸出CDMA射頻信號之間的時間差值以及GPS模擬器接收週期波與輸出GPS射頻信號之間的時間差值計算CDMA手機內CDMA訊號與GPS訊號之間的時延，並依此來校準CDMA手機內的CDMA訊號與GPS訊號以使其同步。A GPS time calibration method for a CDMA mobile phone, the method calibrating GPS time in a CDMA mobile phone through a CDMA communication tester, a GPS simulator, an integrator, a CDMA mobile phone and a computer connected in sequence, and the CDMA communication tester is also The integrator is connected, and the method comprises the steps of: generating a periodic wave through the CDMA communication tester, and outputting the generated periodic wave to the GPS simulator; generating a CDMA RF signal through the CDMA communication tester, and generating the generated CDMA RF signal Output to the integrator; record the time difference between the output periodic wave of the CDMA communication tester and the output CDMA RF signal; receive the periodic wave transmitted by the CDMA communication tester through the GPS simulator; generate the GPS RF signal through the GPS simulator, and Output the generated GPS RF signal to the integrator; record the time difference between the GPS simulator receiving the periodic wave and the output GPS RF signal; integrate the CDMA RF signal transmitted by the CDMA communication tester and the GPS simulator through the integrator GPS RF signal coming over and output the integrated RF signal to CDMA mobile phone; demodulation and integration through CDMA mobile phone After the RF signal, the time difference between the integrated CDMA RF signal and the GPS RF signal is obtained; the time difference between the CDMA RF signal and the GPS RF signal is transmitted to the computer; and the computer is based on the CDMA RF signal and the GPS RF Calculate the time difference between signals, the time difference between the output period wave of the CDMA communication tester and the output CDMA RF signal, and the time difference between the GPS simulator receiving periodic wave and the output GPS RF signal. Calculate the CDMA signal in the CDMA mobile phone. The delay between the GPS signal and the CDMA signal and GPS signal in the CDMA mobile phone are calibrated to synchronize.
相較於習知技術，所述之CDMA手機GPS時間校準系統及方法可校準CDMA手機內CDMA訊號與GPS訊號之間的時間差，使CDMA訊號與GPS訊號同步，提高定位精確度。Compared with the prior art, the CDMA mobile phone GPS time calibration system and method can calibrate the time difference between the CDMA signal and the GPS signal in the CDMA mobile phone, synchronize the CDMA signal with the GPS signal, and improve the positioning accuracy.
如圖1所示，係本發明CDMA手機GPS時間校準系統較佳實施例的系統架構圖。所述之CDMA手機GPS時間校準系統包括CDMA通訊測試儀10，GPS模擬器20，整合器30，CDMA手機40及電腦50。所述之CDMA通訊測試儀10與所述之GPS模擬器20相連，所述之整合器30與所述之CDMA通訊測試儀10、GPS模擬器20及CDMA手機40相連，所述之電腦50與所述之CDMA手機40相連。所述之CDMA通訊測試儀10包括週期波輸出模組110，CDMA射頻信號輸出模組120及CDMA時延記錄模組130。所述之GPS模擬器20包括週期波接收模組210，GPS射頻信號輸出模組220及GPS時延記錄模組230。所述之CDMA手機40包括解調模組410及發送模組420。所述之電腦50包括計算模組510。FIG. 1 is a system architecture diagram of a preferred embodiment of a CDMA mobile phone GPS time calibration system of the present invention. The CDMA mobile phone GPS time calibration system includes a CDMA communication tester 10, a GPS simulator 20, an integrator 30, a CDMA mobile phone 40, and a computer 50. The CDMA communication tester 10 is connected to the GPS simulator 20, and the integrator 30 is connected to the CDMA communication tester 10, the GPS simulator 20 and the CDMA mobile phone 40, and the computer 50 and The CDMA handset 40 is connected. The CDMA communication tester 10 includes a periodic wave output module 110, a CDMA radio frequency signal output module 120, and a CDMA delay recording module 130. The GPS simulator 20 includes a periodic wave receiving module 210, a GPS RF signal output module 220, and a GPS delay recording module 230. The CDMA handset 40 includes a demodulation module 410 and a transmission module 420. The computer 50 includes a computing module 510.
所述之週期波輸出模組110，用於產生週期波，並將所產生的週期波輸出給GPS模擬器20。The periodic wave output module 110 is configured to generate a periodic wave and output the generated periodic wave to the GPS simulator 20.
所述之CDMA射頻信號輸出模組120，用於產生CDMA射頻信號，並將所產生的CDMA射頻信號輸出給整合器30。The CDMA radio frequency signal output module 120 is configured to generate a CDMA radio frequency signal, and output the generated CDMA radio frequency signal to the integrator 30.
所述之CDMA時延記錄模組130，用於記錄輸出週期波與輸出CDMA射頻信號之間的時間差值。The CDMA delay recording module 130 is configured to record a time difference between the output periodic wave and the output CDMA radio frequency signal.
所述之週期波接收模組210，用於接收CDMA通訊測試儀10傳送過來的週期波。The periodic wave receiving module 210 is configured to receive a periodic wave transmitted by the CDMA communication tester 10.
所述之GPS射頻信號輸出模組220，用於產生GPS射頻信號，並將所產生的GPS射頻信號輸出給整合器30。The GPS radio frequency signal output module 220 is configured to generate a GPS radio frequency signal, and output the generated GPS radio frequency signal to the integrator 30.
所述之GPS時延記錄模組230，用於記錄接收週期波與輸出GPS射頻信號之間的時間差值。The GPS time delay recording module 230 is configured to record a time difference between the received periodic wave and the output GPS RF signal.
所述之整合器30用於整合CDMA通訊測試儀10傳送過來的CDMA射頻信號及GPS模擬器20傳送過來的GPS射頻信號，並將整合後的射頻信號輸出給CDMA手機40。The integrator 30 is configured to integrate the CDMA radio frequency signal transmitted by the CDMA communication tester 10 and the GPS radio frequency signal transmitted by the GPS simulator 20, and output the integrated radio frequency signal to the CDMA mobile phone 40.
所述之解調模組410，用於解調整合後的射頻信號，獲取所整合的CDMA射頻信號與GPS射頻信號之間的時間差值。例如GPS射頻信號比CDMA射頻信號晚20ms到達整合器30，整合器將該GPS射頻信號及CDMA射頻信號整合後，再輸出給解調模組410解調，解調模組410解調後獲取的CDMA射頻信號與GPS射頻信號之間的時間差值即為20ms。The demodulation module 410 is configured to demodulate the integrated radio frequency signal to obtain a time difference between the integrated CDMA radio frequency signal and the GPS radio frequency signal. For example, the GPS radio frequency signal arrives at the integrator 30 20 ms later than the CDMA radio frequency signal, and the integrator integrates the GPS radio frequency signal and the CDMA radio frequency signal, and then outputs the demodulation module 410 for demodulation, and the demodulation module 410 demodulates the obtained signal. The time difference between the CDMA RF signal and the GPS RF signal is 20 ms.
所述之發送模組420，還用於將CDMA射頻信號與GPS射頻信號之間的時間差值傳送給電腦50。The sending module 420 is further configured to transmit a time difference between the CDMA radio frequency signal and the GPS radio frequency signal to the computer 50.
所述之計算模組510，用於根據CDMA射頻信號與GPS射頻信號之間的時間差值，CDMA時延記錄模組130所記錄的輸出週期波與輸出CDMA射頻信號之間的時間差值及GPS時延記錄模組230所記錄的接收週期波與輸出GPS射頻信號之間的時間差值計算CDMA手機40內CDMA訊號與GPS訊號之間的時延，並依此校準CDMA手機40內的CDMA訊號與GPS訊號以使其同步。其中，所述之CDMA訊號與GPS訊號之間的時延等於CDMA射頻信號與GPS射頻信號之間的時間差值加上GPS模擬器20接收週期波與輸出GPS射頻信號之間的時間差值再減去CDMA通訊測試儀10輸出週期波與輸出CDMA射頻信號之間的時間差值。The calculation module 510 is configured to: according to a time difference between the CDMA radio frequency signal and the GPS radio frequency signal, the time difference between the output periodic wave recorded by the CDMA delay recording module 130 and the output CDMA radio frequency signal and The time difference between the received periodic wave and the output GPS RF signal recorded by the GPS delay recording module 230 calculates the delay between the CDMA signal and the GPS signal in the CDMA mobile phone 40, and calibrates the CDMA in the CDMA mobile phone 40 accordingly. Signal and GPS signals to synchronize them. The delay between the CDMA signal and the GPS signal is equal to the time difference between the CDMA RF signal and the GPS RF signal plus the time difference between the GPS simulator 20 receiving the periodic wave and the output GPS RF signal. The time difference between the output period wave of the CDMA communication tester 10 and the output CDMA radio frequency signal is subtracted.
如圖2所示，係本發明CDMA手機GPS時間校準方法較佳實施例的流程圖。首先，步驟S11，CDMA通訊測試儀10透過週期波輸出模組110產生週期波，並將所產生的週期波輸出給GPS模擬器20。2 is a flow chart of a preferred embodiment of a GPS time calibration method for a CDMA mobile phone according to the present invention. First, in step S11, the CDMA communication tester 10 generates a periodic wave through the periodic wave output module 110, and outputs the generated periodic wave to the GPS simulator 20.
步驟S12，CDMA通訊測試儀10透過CDMA射頻信號輸出模組120產生CDMA射頻信號，並將所產生的CDMA射頻信號輸出給整合器30。In step S12, the CDMA communication tester 10 generates a CDMA radio frequency signal through the CDMA radio frequency signal output module 120, and outputs the generated CDMA radio frequency signal to the integrator 30.
步驟S13，CDMA通訊測試儀10透過CDMA時延記錄模組130記錄CDMA通訊測試儀10輸出週期波與輸出CDMA射頻信號之間的時間差值。In step S13, the CDMA communication tester 10 records the time difference between the output period wave of the CDMA communication tester 10 and the output CDMA radio frequency signal through the CDMA delay recording module 130.
步驟S14，GPS模擬器20透過週期波接收模組210接收CDMA通訊測試儀10傳送過來的週期波。In step S14, the GPS simulator 20 receives the periodic wave transmitted by the CDMA communication tester 10 through the periodic wave receiving module 210.
步驟S15，GPS模擬器20透過GPS射頻信號輸出模組220產生GPS射頻信號，並將所產生的GPS射頻信號輸出給整合器30。In step S15, the GPS simulator 20 generates a GPS radio frequency signal through the GPS radio frequency signal output module 220, and outputs the generated GPS radio frequency signal to the integrator 30.
步驟S16，GPS模擬器20透過GPS時延記錄模組230記錄GPS模擬器20接收週期波與輸出GPS射頻信號之間的時間差值。In step S16, the GPS simulator 20 records the time difference between the received periodic wave and the output GPS RF signal by the GPS simulator 20 through the GPS delay recording module 230.
步驟S17，整合器30整合CDMA通訊測試儀10傳送過來的CDMA射頻信號及GPS模擬器20傳送過來的GPS射頻信號，並將整合後的射頻信號輸出給CDMA手機40。In step S17, the integrator 30 integrates the CDMA radio frequency signal transmitted by the CDMA communication tester 10 and the GPS radio frequency signal transmitted by the GPS simulator 20, and outputs the integrated radio frequency signal to the CDMA mobile phone 40.
步驟S18，CDMA手機40透過解調模組410解調所收到的整合後的射頻信號，獲取所整合的CDMA射頻信號與GPS射頻信號之間的時間差值。In step S18, the CDMA mobile phone 40 demodulates the received integrated radio frequency signal through the demodulation module 410 to obtain the time difference between the integrated CDMA radio frequency signal and the GPS radio frequency signal.
步驟S19，CDMA手機40透過發送模組420將CDMA射頻信號與GPS射頻信號之間的時間差值傳送給電腦50。In step S19, the CDMA mobile phone 40 transmits the time difference between the CDMA radio frequency signal and the GPS radio frequency signal to the computer 50 through the transmitting module 420.
步驟S20，電腦50的計算模組510根據CDMA射頻信號與GPS射頻信號之間的時間差值，CDMA時延記錄模組130所記錄的CDMA通訊測試儀10輸出週期波與輸出CDMA射頻信號之間的時間差值及GPS時延記錄模組230所記錄的GPS模擬器20接收週期波與輸出GPS射頻信號之間的時間差值計算CDMA手機40內CDMA訊號與GPS訊號之間的時延，並依此來校準CDMA手機40內的CDMA訊號與GPS訊號以使其同步。其中，所述之CDMA訊號與GPS訊號之間的時延等於CDMA射頻信號與GPS射頻信號之間的時間差值加上GPS模擬器20接收週期波與輸出GPS射頻信號之間的時間差值再減去CDMA通訊測試儀10輸出週期波與輸出CDMA射頻信號之間的時間差值。Step S20, the calculation module 510 of the computer 50 is based on the time difference between the CDMA radio frequency signal and the GPS radio frequency signal, and the CDMA communication tester 10 records the output period wave and the output CDMA radio frequency signal recorded by the CDMA delay recording module 130. The time difference and the time difference between the received periodic wave and the output GPS RF signal recorded by the GPS simulator 20 recorded by the GPS delay recording module 230 are used to calculate the delay between the CDMA signal and the GPS signal in the CDMA mobile phone 40, and The CDMA signal and the GPS signal in the CDMA handset 40 are thus calibrated to synchronize them. The delay between the CDMA signal and the GPS signal is equal to the time difference between the CDMA RF signal and the GPS RF signal plus the time difference between the GPS simulator 20 receiving the periodic wave and the output GPS RF signal. The time difference between the output period wave of the CDMA communication tester 10 and the output CDMA radio frequency signal is subtracted.
CDMA通訊測試儀．．．10CDMA communication tester. . . 10
GPS模擬器．．．20GPS simulator. . . 20
整合器．．．30Integrator. . . 30
CDMA手機．．．40CDMA mobile phone. . . 40
電腦．．．50computer. . . 50
週期波輸出模組．．．110Periodic wave output module. . . 110
CDMA射頻信號輸出模組．．．120CDMA RF signal output module. . . 120
CDMA時延記錄模組．．．130CDMA delay recording module. . . 130
週期波接收模組．．．210Periodic wave receiving module. . . 210
GPS射頻信號輸出模組．．．220GPS RF signal output module. . . 220
GPS時延記錄模組．．．230GPS delay recording module. . . 230
解調模組．．．410Demodulation module. . . 410
發送模組．．．420Send module. . . 420
計算模組．．．510Calculation module. . . 510
產生週期波，並將所產生的週期波輸出給GPS模擬器．．．S11Generate periodic waves and output the generated periodic waves to the GPS simulator. . . S11
產生CDMA射頻信號，並將所產生的CDMA射頻信號輸出給整合器．．．S12Generate a CDMA RF signal and output the generated CDMA RF signal to the integrator. . . S12
記錄CDMA通訊測試儀輸出週期波與輸出CDMA射頻信號之間的時間差值．．．S13Record the time difference between the output period wave of the CDMA communication tester and the output CDMA RF signal. . . S13
接收CDMA通訊測試儀傳送過來的週期波．．．S14Receive periodic waves transmitted by the CDMA communication tester. . . S14
產生GPS射頻信號，並將所產生的GPS射頻信號輸出給整合器．．．S15Generate GPS RF signals and output the generated GPS RF signals to the integrator. . . S15
記錄GPS模擬器接收週期波與輸出GPS射頻信號之間的時間差值．．．S16Record the time difference between the GPS simulator receiving periodic wave and the output GPS RF signal. . . S16
整合器整合CDMA射頻信號及GPS射頻信號，並將整合後的射頻信號輸出給CDMA手機．．．S17The integrator integrates CDMA RF signals and GPS RF signals, and outputs the integrated RF signals to CDMA handsets. . . S17
CDMA手機解調收到的整合後的射頻信號，獲取所整合的CDMA射頻信號與GPS射頻信號之間的時間差值．．．S18The CDMA mobile phone demodulates the received RF signal and obtains the time difference between the integrated CDMA RF signal and the GPS RF signal. . . S18
將CDMA射頻信號與GPS射頻信號之間的時間差值傳送給電腦．．．S19Transmitting the time difference between the CDMA RF signal and the GPS RF signal to the computer. . . S19
根據CDMA射頻信號與GPS射頻信號之間的時間差值，CDMA通訊測試儀輸出週期波與輸出CDMA射頻信號之間的時間差值及GPS模擬器接收週期波與輸出GPS射頻信號之間的時間差值計算CDMA訊號與GPS訊號之間的時延．．．S20According to the time difference between the CDMA RF signal and the GPS RF signal, the time difference between the output period wave and the output CDMA RF signal of the CDMA communication tester and the time difference between the GPS simulator receiving periodic wave and the output GPS RF signal The value calculates the delay between the CDMA signal and the GPS signal. . . S20
圖1係本發明CDMA手機GPS時間校準系統較佳實施例的系統架構圖。1 is a system architecture diagram of a preferred embodiment of a CDMA mobile phone GPS time calibration system of the present invention.
圖2係本發明CDMA手機GPS時間校準方法較佳實施例的流程圖。2 is a flow chart of a preferred embodiment of a GPS time calibration method for a CDMA handset of the present invention.
產生週期波，並將所產生的週期波輸出給GPS模擬器．．．S11Generate periodic waves and output the generated periodic waves to the GPS simulator. . . S11
產生CDMA射頻信號，並將所產生的CDMA射頻信號輸出給整合器．．．S12Generate a CDMA RF signal and output the generated CDMA RF signal to the integrator. . . S12
記錄CDMA通訊測試儀輸出週期波與輸出CDMA射頻信號之間的時間差值．．．S13Record the time difference between the output period wave of the CDMA communication tester and the output CDMA RF signal. . . S13
接收CDMA通訊測試儀傳送過來的週期波．．．S14Receive periodic waves transmitted by the CDMA communication tester. . . S14
產生GPS射頻信號，並將所產生的GPS射頻信號輸出給整合器．．．S15Generate GPS RF signals and output the generated GPS RF signals to the integrator. . . S15
記錄GPS模擬器接收週期波與輸出GPS射頻信號之間的時間差值．．．S16Record the time difference between the GPS simulator receiving periodic wave and the output GPS RF signal. . . S16
整合器整合CDMA射頻信號及GPS射頻信號，並將整合後的射頻信號輸出給CDMA手機．．．S17The integrator integrates CDMA RF signals and GPS RF signals, and outputs the integrated RF signals to CDMA handsets. . . S17
CDMA手機解調收到的整合後的射頻信號，獲取所整合的CDMA射頻信號與GPS射頻信號之間的時間差值．．．S18The CDMA mobile phone demodulates the received RF signal and obtains the time difference between the integrated CDMA RF signal and the GPS RF signal. . . S18
將CDMA射頻信號與GPS射頻信號之間的時間差值傳送給電腦．．．S19Transmitting the time difference between the CDMA RF signal and the GPS RF signal to the computer. . . S19
根據CDMA射頻信號與GPS射頻信號之間的時間差值，CDMA通訊測試儀輸出週期波與輸出CDMA射頻信號之間的時間差值及GPS模擬器接收週期波與輸出GPS射頻信號之間的時間差值計算CDMA訊號與GPS訊號之間的時延．．．S20According to the time difference between the CDMA RF signal and the GPS RF signal, the time difference between the output period wave and the output CDMA RF signal of the CDMA communication tester and the time difference between the GPS simulator receiving periodic wave and the output GPS RF signal The value calculates the delay between the CDMA signal and the GPS signal. . . S20
Claims (4)
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|---|---|---|---|---|
| US5875402A (en) * | 1996-07-18 | 1999-02-23 | National Space Dev. Agency Of Japan | Time-synchronous communication system |
| US6351236B1 (en) * | 2000-04-25 | 2002-02-26 | Agilent Technologies, Inc. | Combined GPS and CDMA in a mobile transceiver |
| US20020085627A1 (en) * | 2000-08-07 | 2002-07-04 | Saed Younis | Method and apparatus for base station and mobile station time calibration |
| TW200722780A (en) * | 2005-07-20 | 2007-06-16 | Sirf Techonology Inc | Aided location communication system |
| TW200733759A (en) * | 2005-09-27 | 2007-09-01 | Qualcomm Inc | Position location using transmitters with timing offset and phase adjustment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5875402A (en) * | 1996-07-18 | 1999-02-23 | National Space Dev. Agency Of Japan | Time-synchronous communication system |
| US6351236B1 (en) * | 2000-04-25 | 2002-02-26 | Agilent Technologies, Inc. | Combined GPS and CDMA in a mobile transceiver |
| US20020085627A1 (en) * | 2000-08-07 | 2002-07-04 | Saed Younis | Method and apparatus for base station and mobile station time calibration |
| TW200722780A (en) * | 2005-07-20 | 2007-06-16 | Sirf Techonology Inc | Aided location communication system |
| TW200733759A (en) * | 2005-09-27 | 2007-09-01 | Qualcomm Inc | Position location using transmitters with timing offset and phase adjustment |
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