CN113660717A - Time delay compensation method and system for GPS (global positioning system) synchronization signal of 5G small base station - Google Patents
Time delay compensation method and system for GPS (global positioning system) synchronization signal of 5G small base station Download PDFInfo
- Publication number
- CN113660717A CN113660717A CN202110769097.2A CN202110769097A CN113660717A CN 113660717 A CN113660717 A CN 113660717A CN 202110769097 A CN202110769097 A CN 202110769097A CN 113660717 A CN113660717 A CN 113660717A
- Authority
- CN
- China
- Prior art keywords
- gps
- connecting line
- time delay
- time signal
- delay
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 81
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 7
- 230000008447 perception Effects 0.000 abstract description 5
- 230000001360 synchronised effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/004—Synchronisation arrangements compensating for timing error of reception due to propagation delay
- H04W56/0045—Synchronisation arrangements compensating for timing error of reception due to propagation delay compensating for timing error by altering transmission time
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/0055—Synchronisation arrangements determining timing error of reception due to propagation delay
- H04W56/0065—Synchronisation arrangements determining timing error of reception due to propagation delay using measurement of signal travel time
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The application discloses a time delay compensation method and a time delay compensation system for a GPS (global positioning system) synchronous signal of a 5G small base station, wherein the method comprises the following steps: the method comprises the steps of measuring the length of a GPS antenna and the length of a connecting line, respectively calculating the transmission time delay of a GPS time signal in the GPS antenna and the connecting line by combining the transmission speeds of the GPS time signal in the GPS antenna and the connecting line, detecting the time delay of the processed GPS time signal, calculating the total time delay according to the transmission time delay of the GPS antenna and the connecting line and the time delay of the processed GPS time signal, and finally adjusting the frame starting point of the GPS time signal to realize the clock synchronization of base station equipment and peripheral base stations. The compensation method can realize the clock synchronization of the 5G small base station equipment and the peripheral base stations, so that the overlapping coverage area of the 5G small base station equipment and the peripheral base stations cannot have the phenomena of time delay interference, low switching success rate, large connection time delay and the like, and the mobile user service has better experience and perception.
Description
Technical Field
The application relates to the technical field of communication, in particular to a time delay compensation method and a time delay compensation system for a 5G small base station GPS synchronization signal.
Background
The GPS timing principle is based on accurately measuring and subtracting the transmission delay (Δ t) of the GPS time signal at the device side to achieve timing and calibration of the local clock.
The GPS time signal is an important mode for ensuring clock synchronization of the mobile communication base station, the GPS time signal has time delay when being transmitted in the 5G small base station equipment, and the clock synchronization of the 5G small base station is influenced if the transmission time delay is not considered when the GPS time signal is processed. The asynchronization can cause the phenomena of time delay interference, low switching success rate, large connection time delay and the like in the overlapping coverage area of the 5G small base station and the peripheral base station, and the service experience and perception of the mobile user are influenced.
Content of application
The application provides a time delay compensation method and a time delay compensation system for a GPS (global positioning system) synchronous signal of a 5G small base station, which solve the problems that in the prior art, transmission time delay is not considered when a GPS time signal is processed, clock synchronization of the 5G small base station is influenced, time delay interference exists in an overlapping coverage area of the 5G small base station and a peripheral base station, the switching success rate is low, the connection time delay is large and the like.
The embodiment of the application adopts the following technical scheme: the embodiment of the application provides a time delay compensation method for a GPS (global positioning system) synchronous signal of a 5G small base station, which comprises the following steps:
measuring the length of a GPS antenna and the length of a connecting line, wherein the connecting line comprises a first connecting line between the GPS antenna and base station equipment and a second connecting line between a baseband unit and the base station equipment;
respectively calculating the transmission delay of the GPS time signal in the GPS antenna and the transmission delay of the GPS time signal in the connecting line according to the measured length of the GPS antenna and the transmission speed of the GPS time signal in the GPS antenna, and according to the measured length of the connecting line and the transmission speed of the GPS time signal in the connecting line;
detecting a time delay for processing the GPS time signal;
calculating the total time delay according to the transmission time delay of the GPS time signal in the GPS antenna, the transmission time delay in the connecting line and the time delay for processing the GPS time signal;
and adjusting the starting point of the GPS time signal frame according to the total time delay to realize the clock synchronization of the base station equipment and the peripheral base stations.
Further, the measuring of the length of the GPS antenna and the length of the connection line specifically includes:
sending a signal of the GPS measurement length to the GPS antenna and the connecting line;
and automatically measuring the length of the GPS antenna and the length of the connecting line after the signal of the GPS measured length passes through the GPS antenna and the connecting line back and forth.
Further, the transmission delay of the GPS time signal in the GPS antenna is a product of a length of the GPS antenna and a transmission speed of the GPS time signal in the GPS antenna.
Further, the transmission delay of the GPS time signal in the connection line is a product of the length of the connection line and the transmission speed of the GPS time signal in the connection line.
Further, the total time delay is the sum of the transmission time delay of the GPS time signal in the GPS antenna, the transmission time delay of the GPS time signal in the connection line, and the time delay of processing the GPS time signal.
The embodiment of the application still provides a 5G little basic station GPS synchronizing signal time delay compensating system, including GPS antenna, baseband unit, first connecting wire, second connecting wire and base station equipment, GPS antenna, baseband unit are respectively through first connecting wire, second connecting wire and base station equipment connection, base station equipment is including the measuring module, first calculation module, time delay detection module, second calculation module and the adjustment module that connect gradually, wherein:
the measuring module is used for measuring the length of the GPS antenna and the lengths of the first connecting line and the second connecting line;
the first calculation module is used for calculating the transmission time delay of the GPS time signal in the GPS antenna and the transmission time delay of the GPS time signal in the first connecting line and the second connecting line respectively according to the measured length of the GPS antenna and the transmission speed of the GPS time signal in the GPS antenna and the measured lengths of the first connecting line and the second connecting line and the transmission speed of the GPS time signal in the first connecting line and the second connecting line;
the time delay detection module is used for detecting the time delay of processing the GPS time signal;
the second calculation module is used for calculating the total time delay according to the transmission time delay of the GPS time signal in the GPS antenna, the transmission time delay in the first connecting line and the second connecting line and the time delay of processing the GPS time signal;
the adjusting module is used for adjusting the starting point of the GPS time signal frame according to the total time delay, and realizing the clock synchronization of the base station equipment and the peripheral base stations.
Furthermore, the measuring module comprises a sending unit and an automatic measuring and calculating unit which are connected, the sending unit is used for sending signals of the GPS measuring length to the GPS antenna, the first connecting line and the second connecting line, and the automatic measuring and calculating unit is used for automatically measuring and calculating the length of the GPS antenna and the lengths of the first connecting line and the second connecting line after the signals of the GPS measuring length pass through the GPS antenna, the first connecting line and the second connecting line back and forth.
Further, the transmission delay of the GPS time signal in the GPS antenna calculated by the first calculation module is a product of the length of the GPS antenna and the transmission speed of the GPS time signal in the GPS antenna.
Further, the transmission time delay of the GPS time signal calculated by the first calculation module in the first connection line and the second connection line is: the length of the first connecting line and the second connecting line is multiplied by the corresponding transmission speed of the GPS time signal in the first connecting line and the second connecting line respectively.
Further, the total time delay calculated by the second calculation module is the sum of the transmission time delay of the GPS time signal in the GPS antenna, the transmission time delay of the GPS time signal in the first connection line and the second connection line, and the time delay of the GPS time signal.
The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:
the compensation method can realize the clock synchronization of the 5G small base station equipment and the peripheral base stations, so that the overlapping coverage area of the 5G small base station equipment and the peripheral base stations cannot have the phenomena of time delay interference, low switching success rate, large connection time delay and the like, and the mobile user service has better experience and perception.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic diagram of a connection structure of a 5G small base station GPS synchronization signal delay compensation system according to the present application;
fig. 2 is a schematic block diagram of a 5G small cell base station GPS synchronization signal delay compensation system according to the present application;
fig. 3 is a flowchart of a time delay compensation method for a GPS synchronization signal of a 5G small cell.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.
Example 1
Referring to fig. 1, which is a schematic diagram of a system connection structure of the present application, the EU base station apparatus 40 is connected to the GPS antenna 10 through a first connection line 20, and the EU base station apparatus 40 is further connected to a BU baseband unit 50 through a second connection line 30. The 5G small base station equipment is a product with a three-level architecture, a GPS time service synchronization module is placed in an extended unit EU base station equipment 40 of the 5G small base station equipment, a GPS time signal enters the GPS time service synchronization module in the EU base station equipment 40 through a GPS antenna 10 and a first connecting line 20, the GPS synchronization signal is extracted and modulated by the GPS time signal, and then the GPS time signal is transmitted back to a BU baseband unit 50 through a second connecting line 30.
Referring to fig. 2, the GPS time service synchronization module of the 5G small cell site sends out a GPS measurement signal, and the length data can be measured after the GPS measurement signal passes through the GPS antenna and the connection line back and forth. The GPS time signal sequentially enters the EU base station apparatus 40 through the GPS antenna 10 and the first connection line 20, is processed by the EU base station apparatus 40, and then passes through the second connection line 30 to the BU baseband unit 50. The EU base station device 40 includes a measurement module 41, a first calculation module 42, a delay detection module 43, a second calculation module 44, and an adjustment module 45.
The measurement module 41 includes a sending unit 411 and an automatic calculation unit 412. The measuring module 41 is used to measure the length L1 of the GPS antenna 10, the length L2 of the first connecting line 20, and the length L3 of the second connecting line 30. The sending unit 411 is used for sending signals of the GPS measured length to the GPS antenna 10, the first connecting line 20 and the second connecting line 30, and the automatic measuring and calculating unit 412 is used for automatically measuring and calculating the length L1 of the GPS antenna 10, the length L2 of the first connecting line 20 and the length L3 of the second connecting line 30 after the signals of the GPS measured length pass through the GPS antenna 10, the first connecting line 20 and the second connecting line 30 one round trip. The signal 1 of the GPS measurement length starts from the sending unit 411, reaches the GPS antenna 10 through the first connection line 20, reaches the first connection line 20 through the GPS antenna 10, and finally returns to the sending unit 411; the GPS length-measuring signal 2 starts from the sending unit 411, reaches the BU baseband unit 50 via the second connection line 30, reaches the second connection line 30 via the BU baseband unit 50, and finally returns to the sending unit 411.
The first calculating module 42 is configured to calculate a transmission delay Δ t1 of the GPS time signal in the GPS antenna 10 according to the measured length L1 of the GPS antenna 10 and the transmission speed V1 of the GPS time signal in the GPS antenna 10; calculating the transmission time delay delta t2 of the GPS time signal in the first connecting line 20 according to the measured length L2 of the first connecting line 20 and the transmission speed V2 of the GPS time signal in the first connecting line 20; and calculating the transmission time delay delta t3 of the GPS time signal in the second connecting line 30 according to the measured length L3 of the second connecting line 30 and the transmission speed V3 of the GPS time signal in the second connecting line 30. The transmission speed V1 of the GPS time signal in the GPS antenna 10, the transmission speed V2 of the GPS time signal in the first connection line 20, and the transmission speed V3 of the GPS time signal in the second connection line 30 are set in advance.
The delay detection module 43 is used to detect the delay Δ t4 of processing the GPS time signal.
The second calculating module 44 is configured to calculate the total time delay Δ t according to the transmission time delay Δ t1 of the GPS time signal in the GPS antenna 10, the transmission time delay Δ t2 in the first connection line 20, the transmission time delay Δ t3 in the second connection line 30, and the time delay Δ t4 for processing the GPS time signal.
The adjusting module 45 is configured to adjust a starting point of a GPS time signal frame according to the total time delay Δ t, so as to implement clock synchronization between the EU base station device 40 and a peripheral base station, and thus, phenomena such as time delay interference, low handover success rate, large connection delay, and the like do not occur in an overlapping coverage area of the EU base station device 40 and the peripheral base station, so that the mobile user service has better experience and perception.
The delay detection module 43 is typically integrated into the GPS module.
The transmission delay Δ t1 of the GPS time signal in the GPS antenna 10 is the product of the length L1 of the GPS antenna 10 and the transmission speed V1 of the GPS time signal in the GPS antenna 10, for example, Δ t1 ═ L1 × V1.
The propagation delay Δ t2 of the GPS time signal in the first connection line 20 is a product of the length L2 of the first connection line 20 and the propagation speed V2 of the GPS time signal in the first connection line 20, for example, Δ t2 ═ L2 × V2.
The propagation delay Δ t3 of the GPS time signal in the second connection line 30 is the product of the length L3 of the second connection line 30 and the propagation speed V3 of the GPS time signal in the second connection line 30, for example, Δ t3 ═ L3 × V3.
The total time delay Δ t is the sum of the transmission time delay Δ t1 of the GPS time signal in the GPS antenna 10, the transmission time delay Δ t2 of the GPS time signal in the first connection line 20, the transmission time delay Δ t3 of the GPS time signal in the second connection line 30, and the time delay Δ t4 for processing the GPS time signal, for example, Δ t is Δ t1+ Δ t2+ Δ t3+ Δ t 4.
Example 2
Referring to fig. 3, the present application provides a GPS time signal delay compensation method, including the following steps:
s1, measuring the length L1 of the GPS antenna 10, the length L2 of the first connection line 20, and the length L3 of the second connection line 30.
S2, calculating the transmission delay Δ t1 of the GPS time signal in the GPS antenna 10, the transmission delay Δ t2 in the first connection line 20 and the transmission delay Δ t3 in the second connection line 30 respectively according to the measured length L1 of the GPS antenna 10 and the transmission speed V1 of the GPS time signal in the GPS antenna 10, the measured length L2 of the first connection line 20 and the transmission speed V2 of the GPS time signal in the first connection line 20, and the measured length L3 of the second connection line 30 and the transmission speed V3 of the GPS time signal in the second connection line 30. The transmission speed V1 of the GPS time signal in the GPS antenna 10, the transmission speed V2 of the GPS time signal in the first connection line 20, and the transmission speed V3 of the GPS time signal in the second connection line 30 are set in advance.
And S3, detecting and processing the time delay delta t4 of the GPS time signal.
S4, calculating the total time delay Δ t according to the transmission time delay Δ t1 of the GPS time signal in the GPS antenna 10, the transmission time delay Δ t2 in the first connection line 20, the transmission time delay Δ t3 in the second connection line 30, and the time delay Δ t4 of processing the GPS time signal.
And S5, adjusting the starting point of the GPS time signal frame according to the total time delay delta t, thereby realizing the clock synchronization of the EU base station equipment 40 and the peripheral base stations.
In this embodiment, the transmission delay Δ t1 of the GPS time signal in the GPS antenna 10 is a product of the length L1 of the GPS antenna 10 and the transmission speed V1 of the GPS time signal in the GPS antenna 10, for example, Δ t1 ═ L1 × V1.
The propagation delay Δ t2 of the GPS time signal in the first connection line 20 is a product of the length L2 of the first connection line 20 and the propagation speed V2 of the GPS time signal in the first connection line 20, for example, Δ t2 ═ L2 × V2.
The propagation delay Δ t3 of the GPS time signal in the second connection line 30 is the product of the length L3 of the second connection line 30 and the propagation speed V3 of the GPS time signal in the second connection line 30, for example, Δ t3 ═ L3 × V3.
The total time delay Δ t is the sum of the transmission time delay Δ t1 of the GPS time signal in the GPS antenna 10, the transmission time delay Δ t2 of the GPS time signal in the first connection line 20, the transmission time delay Δ t3 of the GPS time signal in the second connection line 30, and the time delay Δ t4 for processing the GPS time signal, for example, Δ t is Δ t1+ Δ t2+ Δ t3+ Δ t 4.
In the present embodiment, the step of measuring the length L1 of the GPS antenna 10, the length L2 of the first connection line 20, and the length L3 of the second connection line 30 includes:
sending signals of the GPS measurement length to the GPS antenna 10, the first connecting line 20 and the second connecting line 30;
the length L1 of the GPS antenna 10, the length L2 of the first connecting line 20 and the length L3 of the second connecting line 30 are automatically measured after the signals with the GPS measuring length pass through the GPS antenna 10, the first connecting line 20 and the second connecting line 30 one round trip. The GPS signals reach the GPS antenna 10 through the first connection line 20, then reach the first connection line 20 through the GPS antenna 10, then reach the BU baseband unit 50 through the EU base station apparatus via the second connection line 30, then reach the second connection line 30 through the BU baseband unit 50, and then return to the EU base station apparatus.
In summary, the compensation method of the present application can achieve clock synchronization between the 5G small cell equipment and the peripheral base station, so that the overlapping coverage area between the 5G small cell equipment and the peripheral base station does not have the phenomena of time delay interference, low handover success rate, large connection time delay, etc., and the mobile user service has better experience and perception.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. A time delay compensation method for a GPS synchronization signal of a 5G small base station is characterized by comprising the following steps:
measuring the length of a GPS antenna and the length of a connecting line, wherein the connecting line comprises a first connecting line between the GPS antenna and base station equipment and a second connecting line between a baseband unit and the base station equipment;
respectively calculating the transmission delay of the GPS time signal in the GPS antenna and the transmission delay of the GPS time signal in the connecting line according to the measured length of the GPS antenna and the transmission speed of the GPS time signal in the GPS antenna, and according to the measured length of the connecting line and the transmission speed of the GPS time signal in the connecting line;
detecting a time delay for processing the GPS time signal;
calculating the total time delay according to the transmission time delay of the GPS time signal in the GPS antenna, the transmission time delay in the connecting line and the time delay for processing the GPS time signal;
and adjusting the starting point of the GPS time signal frame according to the total time delay to realize the clock synchronization of the base station equipment and the peripheral base stations.
2. The method for compensating the time delay of the GPS synchronization signal of the 5G small base station according to claim 1, wherein the measuring the length of the GPS antenna and the length of the connection line specifically includes:
sending a signal of the GPS measurement length to the GPS antenna and the connecting line;
and automatically measuring the length of the GPS antenna and the length of the connecting line after the signal of the GPS measured length passes through the GPS antenna and the connecting line back and forth.
3. The method as claimed in claim 1, wherein the propagation delay of the GPS time signal in the GPS antenna is a product of a length of the GPS antenna and a propagation speed of the GPS time signal in the GPS antenna.
4. The method as claimed in claim 1, wherein the propagation delay of the GPS time signal in the connection line is a product of the length of the connection line and the propagation speed of the GPS time signal in the connection line.
5. The method as claimed in claim 1, wherein the total delay is a sum of a transmission delay of the GPS time signal in the GPS antenna, a transmission delay of the GPS time signal in the connection line, and a delay of processing the GPS time signal.
6. The utility model provides a 5G little basic station GPS synchronizing signal time delay compensating system, its characterized in that, includes GPS antenna, baseband unit, first connecting wire, second connecting wire and base station equipment, GPS antenna, baseband unit are respectively through first connecting wire, second connecting wire and base station equipment connection, base station equipment is including the measuring module, first calculation module, time delay detection module, second calculation module and the adjustment module that connect gradually, wherein:
the measuring module is used for measuring the length of the GPS antenna and the lengths of the first connecting line and the second connecting line;
the first calculation module is used for calculating the transmission time delay of the GPS time signal in the GPS antenna and the transmission time delay of the GPS time signal in the first connecting line and the second connecting line respectively according to the measured length of the GPS antenna and the transmission speed of the GPS time signal in the GPS antenna and the measured lengths of the first connecting line and the second connecting line and the transmission speed of the GPS time signal in the first connecting line and the second connecting line;
the time delay detection module is used for detecting the time delay of processing the GPS time signal;
the second calculation module is used for calculating the total time delay according to the transmission time delay of the GPS time signal in the GPS antenna, the transmission time delay in the first connecting line and the second connecting line and the time delay of processing the GPS time signal;
the adjusting module is used for adjusting the starting point of the GPS time signal frame according to the total time delay, and realizing the clock synchronization of the base station equipment and the peripheral base stations.
7. The system of claim 6, wherein the measurement module comprises a transmitter and an automatic measurement and calculation unit, the transmitter is configured to transmit a GPS length measurement signal to the GPS antenna and the first and second connection lines, and the automatic measurement and calculation unit is configured to automatically measure the length of the GPS antenna and the lengths of the first and second connection lines after the GPS length measurement signal passes through the GPS antenna and the first and second connection lines.
8. The system according to claim 6, wherein the propagation delay of the GPS time signal in the GPS antenna calculated by the first calculation module is a product of a length of the GPS antenna and a propagation speed of the GPS time signal in the GPS antenna.
9. The system according to claim 6, wherein the propagation delay of the GPS time signal calculated by the first calculating module in the first connection line and the second connection line is: the length of the first connecting line and the second connecting line is multiplied by the corresponding transmission speed of the GPS time signal in the first connecting line and the second connecting line respectively.
10. The system according to claim 6, wherein the total time delay calculated by the second calculation module is a sum of a transmission time delay of the GPS time signal in the GPS antenna, a transmission time delay of the GPS time signal in the first connection line and the second connection line, and a time delay of processing the GPS time signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110769097.2A CN113660717A (en) | 2021-07-07 | 2021-07-07 | Time delay compensation method and system for GPS (global positioning system) synchronization signal of 5G small base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110769097.2A CN113660717A (en) | 2021-07-07 | 2021-07-07 | Time delay compensation method and system for GPS (global positioning system) synchronization signal of 5G small base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113660717A true CN113660717A (en) | 2021-11-16 |
Family
ID=78489165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110769097.2A Pending CN113660717A (en) | 2021-07-07 | 2021-07-07 | Time delay compensation method and system for GPS (global positioning system) synchronization signal of 5G small base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113660717A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114828202A (en) * | 2022-07-01 | 2022-07-29 | 深圳国人无线通信有限公司 | Method and system for base station air interface synchronization alignment |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244397A (en) * | 2014-08-08 | 2014-12-24 | 厦门雷克通信技术工程有限公司 | Time-delay compensation method for TD-LTE optical fiber remote equipment |
| CN111511012A (en) * | 2020-03-26 | 2020-08-07 | 深圳国人无线通信有限公司 | GPS time signal delay compensation method and system |
-
2021
- 2021-07-07 CN CN202110769097.2A patent/CN113660717A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104244397A (en) * | 2014-08-08 | 2014-12-24 | 厦门雷克通信技术工程有限公司 | Time-delay compensation method for TD-LTE optical fiber remote equipment |
| CN111511012A (en) * | 2020-03-26 | 2020-08-07 | 深圳国人无线通信有限公司 | GPS time signal delay compensation method and system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114828202A (en) * | 2022-07-01 | 2022-07-29 | 深圳国人无线通信有限公司 | Method and system for base station air interface synchronization alignment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5293645A (en) | Apparatus and method for locating mobile and portable radio terminals in a radio network | |
| US6252890B1 (en) | Apparatus for compensating for signal transit time differences of digital transmission devices | |
| CA2316260A1 (en) | Mobile station assisted timing synchronization in a cdma communication system | |
| CN103458496A (en) | Method and system for achieving time synchronization through WiFi-Direct | |
| JPH05500594A (en) | Base station transceiver diagnostic equipment | |
| MY121076A (en) | Making time of arrival measurements. | |
| KR20050086799A (en) | Device, system and method for obtaining timing information and ranging | |
| CN103188066A (en) | Reference clock signal processing method and device | |
| CN105682215A (en) | Clock synchronization method and device as well as cascaded base station system | |
| CN113660717A (en) | Time delay compensation method and system for GPS (global positioning system) synchronization signal of 5G small base station | |
| CN102255791A (en) | Inter-equipment link delay determination method and system | |
| CN106658696A (en) | Wireless timing method, wireless timing system and terminal | |
| CN109996325A (en) | A kind of clock system and method for wireless sensor network | |
| AU4760400A (en) | A method for initiating in a terminal of a cellular network the measurement of power levels of signals and a terminal | |
| CN101312584A (en) | Wireless positioning method and system based on base station signal / mobile phone signal | |
| GB2354403B (en) | Communication systems | |
| CN110198198B (en) | Road side unit synchronization method, device, processor and road side unit | |
| EP1068762B1 (en) | Method of measuring time difference between transmitters, and radio system | |
| CN113747338B (en) | Information reporting method, device, equipment and readable storage medium | |
| CN110149141A (en) | Signal transmission timing method based on UTC | |
| CN101938825A (en) | Time synchronization method, device and system in digital subscriber line | |
| CN111511012A (en) | GPS time signal delay compensation method and system | |
| CN200989927Y (en) | Long-distance digital nuclear phase system | |
| CN102612134B (en) | User equipment assisted synchronization mode of base stations | |
| KR19990058986A (en) | Intra-Network Synchronization Method in Mobile Communication System |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |