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WO2014094311A1 - Procédé, dispositif et système de synchronisation d'interface radio - Google Patents

Procédé, dispositif et système de synchronisation d'interface radio Download PDF

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Publication number
WO2014094311A1
WO2014094311A1 PCT/CN2012/087202 CN2012087202W WO2014094311A1 WO 2014094311 A1 WO2014094311 A1 WO 2014094311A1 CN 2012087202 W CN2012087202 W CN 2012087202W WO 2014094311 A1 WO2014094311 A1 WO 2014094311A1
Authority
WO
WIPO (PCT)
Prior art keywords
base station
information
clock
frame
station controller
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.)
Ceased
Application number
PCT/CN2012/087202
Other languages
English (en)
Chinese (zh)
Inventor
薛怀杰
林捷
荣大伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201280002055.5A priority Critical patent/CN103250451B/zh
Priority to PCT/CN2012/087202 priority patent/WO2014094311A1/fr
Publication of WO2014094311A1 publication Critical patent/WO2014094311A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H04W56/0015—Synchronization between nodes one node acting as a reference for the others
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/12—Interfaces between hierarchically different network devices between access points and access point controllers

Definitions

  • the present invention relates to the field, and in particular, to a method, device and system for air interface synchronization. Background technique
  • GSM Global System For Mobile Communications
  • IRC Interference Rejection Combining
  • SAIC Single Antenna Interference Cancellation
  • IBCA Interference Based Channel Allocation
  • All base station controllers and all base stations are equipped with Global Positioning System (GPS) core cards. All base station controllers and base stations receive satellite timing through GPS core cards. To ensure that all base stations under the base station controller implement air interface synchronization, and at the same time, ensure that all base stations implement air interface synchronization.
  • GPS Global Positioning System
  • the embodiment of the invention provides a method, a device and a system for air interface synchronization, which can reduce the cost of the communication system while realizing air interface synchronization.
  • a first aspect of the present invention provides a method for air interface synchronization, including: a base station controller transmitting information including a clock of the base station controller to each non-base station controlled by the base station controller, so that each of the The non-base station adjusts the clock to a clock synchronized with the clock of the base station controller; Determining, by the base station controller, frame values of the reference station controlled by the base station controller, a difference value of frame information of each of the non-base stations and the reference, and according to each of the non-base stations The difference value generates frame offset information of each of the non-base stations; the frame information of the base station is generated based on acquiring time information of the satellite transmission by the global positioning system core card and a clock of the base station, The clock of the base station is synchronized with the clock of the base station controller;
  • the base station controller separately transmits the generated frame offset information to each of the non-base stations, so that each of the non-base stations adjusts the frame information to the reference according to the received frame offset information. Synchronized frame information.
  • the clock of the base station controller is a clock uniformly designated in a network in which the base station controller is located.
  • the base station controller is installed with a global positioning system core card, and the base station controller sends information including a clock of the base station controller to the base station control Before each base station controlled by the device, the method further includes:
  • the base station controller receives a pulse signal transmitted by a satellite through the global positioning system core card; and the base station controller generates a clock of the base station controller according to the received pulse signal.
  • the method further includes:
  • the base station controller transmits information including a clock of the base station controller to the reference station such that the base station adjusts a clock to a clock synchronized with a clock of the base station controller.
  • the method before the base station controller sends information about a clock of the base station controller to each base station controlled by the base station controller, the method further includes: :
  • the base station controller receives information of a clock including the reference station transmitted by the base station; and the base station controller adjusts a clock to a clock synchronized by the base station.
  • the base station controller calculates, according to frame information of a reference station controlled by the base station controller, frame information and a location of each of the base stations Before the difference value of the reference, and the frame offset information of each of the non-base stations is generated according to the difference value of each of the base stations, the method further includes:
  • the base station controller acquires behavior information of the user equipment under the reference station service and the user equipment under the non-base station service, where the behavior information includes frame information;
  • the frame information of the base station and each non-base station is acquired from the behavior information.
  • the frame information includes: a frame number and intra-frame bit information
  • the frame offset information includes:
  • the frame number to be adjusted and the intra-frame bit offset value to be adjusted are the frame number to be adjusted and the intra-frame bit offset value to be adjusted.
  • calculating, by using the non-base station, the difference between the frame information and the reference station includes:
  • the base station controller separately calculates frame number difference values of frames of each of the non-base stations and the reference station at the same time; and/or
  • the base station controller calculates a difference value of an intra-frame bit offset of each of the non-base stations and the reference station at the same time.
  • the non-base station refers to a base station that does not have a global positioning system core card installed; and the base station refers to a base station that is installed with a global positioning system core card. .
  • a second aspect of the present invention provides a method for air interface synchronization, where a base station is equipped with a GPS chip, and the method includes:
  • the base station generates frame information based on the time information and a clock of the base station, where a clock of the base station is synchronized with a clock of a base station controller to which the base station belongs;
  • the method before the receiving, by the base station, the time information sent by the satellite, the method further includes:
  • the base station receives information that is sent by the base station controller and includes a clock of the base station controller; and the base station adjusts a clock to synchronize a clock with the clock of the base station controller.
  • the method before the receiving, by the reference station, the time information sent by the satellite, the method further includes: The base station receives a pulse signal transmitted by a satellite through the global positioning system chip; and the base station generates a clock of the base station according to the received pulse signal.
  • a third aspect of the present invention provides a method for air interface synchronization, including:
  • the base station receives frame offset information sent by the base station controller, where the frame offset information is that the base station controller calculates a frame of the base station based on frame information of a reference station controlled by the base station controller. a difference value between the information and the reference, and generated according to the difference value of the base station; a clock of the base station is synchronized with a clock of the base station controller;
  • the base station adjusts frame information to frame information synchronized with the reference according to the received frame offset information.
  • the method further includes:
  • the base station sends information to the user equipment, so that the base station controller to which the base station belongs receives the behavior information sent by the user equipment, and the base station controller acquires frame information of the base station from the behavior information, and And calculating, according to the frame information of the base station, a difference value between the frame information of the base station and the reference, and generating frame offset information of the base station according to the difference value.
  • a fourth aspect of the present invention provides a base station controller, including: a clock information sending unit, a frame offset information generating unit, and a frame offset information sending unit, where:
  • a clock information transmitting unit configured to send information including a clock of the base station controller to each of the base station controllers a non-base station, such that each non-base station adjusts the clock to a clock synchronized with the base station controller's clock;
  • a frame offset information generating unit configured to calculate, according to frame information of the reference station controlled by the base station controller, a difference value between the frame information of each of the non-base stations and the reference, and according to each The difference value of the non-base station generates frame offset information of each of the non-base stations, and the frame information of the reference station is based on time information transmitted by the global positioning system core card to acquire satellites and the reference station
  • the clock generated by the clock is synchronized with the clock sent by the clock information sending unit;
  • the clock of the base station controller is a clock uniformly designated in the network where the base station controller is located.
  • the base station controller is installed with a global positioning system core card, and the base station controller further includes:
  • a pulse signal receiving unit configured to receive, by the global positioning system core card, a pulse signal sent by a satellite;
  • a clock generating unit configured to generate a clock of the base station controller according to the pulse signal received by the pulse signal receiving unit.
  • the clock information sending unit is further configured to: send information that includes a clock of the base station controller to the reference station, so that The base station adjusts the clock to a clock synchronized with the clock of the base station controller.
  • the base station controller further includes: a clock information receiving unit, configured to receive, by the reference station, information that includes a clock of the reference station;
  • a clock adjustment unit configured to adjust a clock of the base station controller to a clock synchronization of a reference station received by the clock information receiving unit.
  • the base station controller further includes:
  • a behavior information acquiring unit configured to acquire behavior information of the user equipment under the base station service and the user equipment under the base station service, where the behavior information includes frame information;
  • the frame offset information generating unit is further configured to acquire frame information of the base station and each non-base station from the behavior information acquired by the behavior information acquiring unit.
  • the frame information includes:
  • the frame offset information includes:
  • the frame number to be adjusted and the intra-frame bit offset value to be adjusted are the frame number to be adjusted and the intra-frame bit offset value to be adjusted.
  • the frame offset information generating unit is further configured to calculate, respectively, the reference to each of the non-base stations at the same time The frame number difference value of the station's frame; and/or The frame offset information generating unit is further configured to separately calculate a difference value of an intra-frame bit offset of a frame of the non-base station and the reference station at the same time.
  • the non-base station refers to a base station that does not have a global positioning system core card installed; and the base station refers to an installed global positioning system core The base station of the card.
  • a fifth aspect of the present invention provides a base station, where the base station is equipped with a GPS chip, and the base station includes: a time information receiving unit, a frame information generating unit, and an information sending unit, where:
  • a time information receiving unit configured to receive time information transmitted by the satellite through the GPS core card
  • the frame information generating unit configured to generate frame information based on time information received by the time information receiving unit and a clock of the base station, The clock of the base station is synchronized with the clock of the base station controller to which the base station belongs;
  • An information sending unit configured to send information to the user equipment in the frame, so that the base station controller to which the base station belongs receives behavior information that is sent by the user equipment in the frame, and the base station controller uses the behavior Obtaining the frame information, and calculating, according to the frame information, a difference value of frame information of each non-base station controlled by the base station controller and the reference, and according to each of the non-references The difference value of the station generates frame offset information for each of the non-base stations.
  • the base station further includes:
  • a clock information receiving unit configured to receive information that is sent by the base station controller and includes a clock of the base station controller
  • a clock adjustment unit configured to synchronize a clock of the base station with a clock of the base station controller.
  • the base station further includes:
  • a pulse signal receiving unit configured to receive, by using the global positioning system chip, a pulse signal sent by a satellite;
  • a clock generating unit configured to generate a clock of the base station according to the pulse signal received by the pulse signal receiving unit.
  • the reference station further includes:
  • a sixth aspect of the present invention provides a base station, including: a clock information receiving unit, a frame offset information receiving unit, and an adjusting unit, where:
  • a clock information receiving unit configured to receive information about a clock of the base station controller sent by the base station controller, and adjust a clock of the base station to a clock synchronized with a clock of the base station controller;
  • a frame offset information receiving unit configured to receive frame offset information sent by the base station controller, where the frame offset information is based on frame information of a base station controlled by the base station controller, Calculating a difference value between the frame information of the base station and the reference, and generating according to the difference value of the base station; the clock of the base station is synchronized with a clock of the base station controller;
  • an adjusting unit configured to adjust the frame information to frame information synchronized with the reference according to the frame offset information received by the frame offset information receiving unit.
  • the base station further includes:
  • An information sending unit configured to send information to the user equipment, so that the base station controller to which the base station belongs receives behavior information sent by the user equipment, where the base station controller acquires a frame of the base station from the behavior information And calculating, according to the frame information of the base station, a difference value between the frame information of the base station and the reference, and generating frame offset information of the base station according to the difference value.
  • a seventh aspect of the present invention provides a system for air interface synchronization, comprising: a base station controller provided by the fourth aspect, a base station provided by the fifth aspect, and a base station provided by the sixth aspect.
  • An eighth aspect of the present invention provides a base station controller, including:
  • the transmitter configured to send information including a clock of the base station controller to each non-base station controlled by the base station controller, so that each of the non-base stations adjusts a clock to be compared with the base station
  • the processor is configured to perform the following steps:
  • the frame information of the base station is generated based on time information transmitted by the global positioning system core card acquisition satellite and a clock of the base station, the clock of the base station Synchronizing with the clock of the base station controller;
  • the transmitter is further configured to separately send the generated frame offset information to each of the non-base stations, so that each of the non-base stations adjusts the frame information to the location according to the received frame offset information.
  • the frame information of the reference synchronization is installed with a global positioning system core card, and the base station further includes:
  • a receiver configured to receive, by using the global positioning system core card, a pulse signal sent by a satellite; the processor is further configured to perform the following steps:
  • the transmitter is further configured to send information about a clock of the base station controller to the reference station, so that the reference is The station adjusts the clock to a clock that is synchronized with the clock of the base station controller.
  • the base station controller further includes: a receiver, configured to receive, by the reference station, information that includes a clock of the reference station; Used to perform the following steps:
  • the clock of the base station controller is adjusted to a clock synchronized by the base station.
  • the base station controller further includes: a receiver, configured to acquire user equipments under the base station service and users in each of the non-base station services Behavior information of the device, the behavior information including frame information.
  • the frame information includes:
  • the frame offset information includes:
  • the frame number to be adjusted and the intra-frame bit offset value to be adjusted are the frame number to be adjusted and the intra-frame bit offset value to be adjusted.
  • the step of calculating, by the processor, separately calculating a difference between the frame information of each non-base station and the reference station Includes:
  • the difference value of the intra-frame bit offset of the frame of the non-base station with the reference station at the same time is calculated separately.
  • a ninth aspect of the present invention provides a base station, where the base station is installed with a global positioning system chip, including: a receiver, a processor, and a transmitter, where:
  • the receiver is configured to receive time information sent by a satellite through the global positioning system core card;
  • the processor is configured to perform the following steps:
  • the transmitter is configured to send information to the user equipment in the frame, so that the base station controller to which the base station belongs receives behavior information that is sent by the user equipment in the frame, where the base station controller is Obtaining the frame information according to the behavior information, and calculating, according to the frame information, a difference value between the frame information of each non-base station controlled by the base station controller and the reference, and according to each of the non-references The difference value of the base station generates frame offset information for each of the non-base stations.
  • the receiver is further configured to receive, by the base station controller, information that includes a clock of the base station controller;
  • the processor is further configured to perform the following steps:
  • the receiver is further configured to receive, by using the global positioning system chip, a pulse signal sent by a satellite;
  • the processor is further configured to perform the following steps:
  • the transmitter is further configured to send, to the base station controller, information that includes a clock of the base station, to enable the The base station controller adjusts the clock to a clock synchronized by the base station.
  • a tenth aspect of the present invention provides a base station, including: a receiver and a processor, where:
  • the receiver is configured to receive, by the base station controller, information that includes a clock of the base station controller;
  • the processor is configured to perform the following steps:
  • the receiver is further configured to receive frame offset information sent by the base station controller, where the frame offset information is calculated by using, by the base station controller, frame information of a reference station controlled by the base station controller, Deriving a difference value between the frame information of the base station and the reference, and generating according to the difference value of the base station; the clock of the base station is synchronized with the clock of the base station controller;
  • the processor is further configured to perform the following steps:
  • the frame information is adjusted to frame information synchronized with the reference based on the received frame offset information.
  • the transmitter is further configured to send information to the user equipment, so that the base station controller to which the base station belongs receives the behavior information sent by the user equipment, where the base station controller The behavior information is used to obtain the frame information of the base station, and the difference between the frame information of the base station and the reference is calculated based on the frame information of the reference station, and the base station is generated according to the difference value.
  • Frame offset information is used to obtain the frame information of the base station, and the difference between the frame information of the base station and the reference is calculated based on the frame information of the reference station, and the base station is generated according to the difference value.
  • the eleventh aspect provides a system for air interface synchronization, comprising the base station controller provided by the eighth aspect, the base station provided by the ninth aspect, and the base station provided by the tenth aspect.
  • the base station controller sends information including a clock of the base station controller to each non-base station controlled by the base station controller; and base station controller uses frame information of the base station controlled by the base station controller.
  • base station controller uses frame information of the base station controlled by the base station controller. For the reference, respectively calculating a difference value of the frame information of each non-base station and the reference, and generating frame offset information of each non-base station according to the difference value of each non-base station; the base station controller generates the frame The frame offset information is sent to each non-base station separately.
  • the clock and frame information of all the base stations in the base station controller are synchronized, that is, the air interface resources of all the base stations in the base station controller are synchronized, so that the air interface resources of all the base stations under different base station controllers in the same network are synchronized.
  • the GPS core card installed in the base station is installed, and the GPS is installed in each base station, the base station and the base station controller in the prior art, and the invention can reduce the cost of the communication system.
  • FIG. 1 is a schematic flowchart diagram of a method for air interface synchronization according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart diagram of another method for air interface synchronization according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart diagram of another method for air interface synchronization according to an embodiment of the present invention.
  • FIG. 4 is a schematic flowchart diagram of another method for air interface synchronization according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart diagram of another method for air interface synchronization according to an embodiment of the present invention.
  • FIG. 6 is a schematic flowchart diagram of another method for air interface synchronization according to an embodiment of the present invention.
  • FIG. 7 is a schematic flowchart diagram of another method for air interface synchronization according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of a base station controller according to an embodiment of the present disclosure
  • FIG. 9 is a schematic structural diagram of another base station controller according to an embodiment of the present invention
  • FIG. 10 is a schematic structural diagram of another base station controller according to an embodiment of the present disclosure
  • FIG. 11 is a schematic structural diagram of another base station controller according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 16 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 17 is a schematic structural diagram of a system for air interface synchronization according to an embodiment of the present invention.
  • FIG. 18 is a schematic structural diagram of another base station controller according to an embodiment of the present disclosure.
  • FIG. 19 is a schematic structural diagram of another base station controller according to an embodiment of the present disclosure.
  • FIG. 20 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 21 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 22 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 23 is a schematic structural diagram of another base station according to an embodiment of the present disclosure.
  • FIG. 24 is a schematic structural diagram of another air interface synchronization system according to an embodiment of the present invention. detailed description
  • Figure 1 is a schematic flowchart of a method for air interface synchronization according to an embodiment of the present invention. As shown in Figure 1, the method includes:
  • the base station controller sends information including a clock of the base station controller to each non-base station controlled by the base station controller, so that each non-base station adjusts a clock to a clock with the base station controller. Synchronized clock
  • the clock synchronized with the clock of the base station controller is a clock that is synchronized with the clock of the base station controller by using the clock of the base station controller as a reference clock. If the clock of the base station controller is a clock of 2M, the base station receives the clock. After the clock, you can use the 2M clock as the reference clock to generate 13M time. Clock. This makes it possible to synchronize the clocks of all non-base stations under the base station controller.
  • the clock of the base station controller may be a uniformly designated clock in the network where the base station controller is located, so that the clocks of all the base station controllers in the same network are synchronized.
  • the above can be obtained that the clocks of each non-base station in the same network are synchronized.
  • the clock of the base station controller may be generated by the air interface soft synchronization mode in the network where the base station controller is located, that is, all base station controllers in the network where the base station controller is located send each clock information to each other, and the clock information is adjusted and adjusted.
  • the respective clocks are synchronized to achieve the clocks of all base station controllers in the network.
  • the clock of the base station working under the base station controller may also be a clock uniformly designated in the network where the base station controller is located.
  • the clock of the base station is unified in the network where the base station controller is located.
  • the designated clock specifies the clock generated according to the pulse signal transmitted by the satellite, and the clock of the base station controller may be the clock synchronized with the clock of the base station, so that the clock of the base station controller is uniformly designated by the network.
  • the clock of the base station is based on the clock of the base station controller, and generates a clock synchronized with the clock of the base station controller, and the clock of the base station controller is uniformly designated in the network, so that the clock of the base station can be realized. It is also specified in the network. In this way, the clocks of all non-base stations and base stations under the base station controller are synchronized, so that the clocks of all base stations in the same network are synchronized.
  • the base station controller calculates, according to frame information of the reference station controlled by the base station controller, a difference value between the frame information of each non-base station and the reference, and generates a difference value according to each non-base station.
  • Frame offset information of each of the non-base stations the frame information of the base station is generated based on time information transmitted by the global positioning system core card acquisition satellite and the clock of the base station, and the clock of the base station Synchronizing the clock of the base station controller;
  • the base station controller acquires frame information of each non-reference station and frame information of the base station before step 102.
  • the frame information of the base station and each non-base station can be obtained from the behavior information of the user equipment under the base station service and the user equipment under each non-base station service.
  • the foregoing behavior information includes frame information, for example, control information or request message sent by the user equipment to the base station controller, and the user equipment is served under a certain base station, so that the user equipment is served by the base station.
  • Sending the behavior information to the base station controller the behavior information needs to send the behavior information to the base station controller by using the frame indicated by the frame information of the base station, so that the base station controller can obtain the frame information of the base station from the behavior information, thereby You can get the above base station and each non-base Frame information of the quasi-station.
  • the base station controller separately sends the generated frame offset information to each non-base station, so that each of the non-base stations adjusts the frame information to be synchronized with the reference according to the received frame offset information.
  • Frame information
  • step 102 and step 103 frame information of all base stations (including: non-base station and base station) under the base station controller is synchronized, and the clock of the base station is generated based on time information transmitted by the satellite, that is, The frame information of the base station working under each base station controller in the same network is generated based on the time information transmitted by the satellite, so that the frame information of each base station in the same network can be synchronized.
  • the above can be obtained that the frame information of each base station in the network is synchronized.
  • the clock and frame information of all base stations in the network are synchronized, and the air interface resources of all base stations in the same network are synchronized.
  • the embodiment of the present invention only the GPS core card installed in the base station is installed. Compared with the prior art, each base station and the base station controller are installed with GPS. The embodiment of the present invention can reduce the cost of the communication system.
  • the non-base station may refer to a base station without a global positioning system core card; and the base station may refer to a base station with GPS installed.
  • the base station controller sends information including a clock of the base station controller to each non-base station controlled by the base station controller; and base station controller uses frame information of the base station controlled by the base station controller.
  • base station controller uses frame information of the base station controlled by the base station controller. For the reference, respectively calculating a difference value of the frame information of each non-base station and the reference, and generating frame offset information of each non-base station according to the difference value of each non-base station; the base station controller generates the frame The frame offset information is sent to each non-base station separately.
  • FIG. 2 is a schematic flowchart of another method for air interface synchronization according to an embodiment of the present invention.
  • a base station controller is installed with a GPS core card, as shown in FIG. 2, including:
  • the base station controller receives, by using the GPS core card, a pulse signal sent by a satellite.
  • the base station controller generates a clock of the base station controller according to the received pulse signal.
  • the clock of the base station controller is uniformly designated by the network, and is specified.
  • a clock generated based on a pulse signal transmitted by a satellite. In this way, the clock of each base station controller in the same network can be synchronized.
  • the clock of the base station controller may specifically be a 2M clock.
  • the base station controller sends information including a clock of the base station controller to each non-base station controlled by the base station controller, so that each non-base station adjusts a clock to a clock with the base station controller. Synchronized clock.
  • the base station controller may further control the E1 clock of the transmission network as a reference clock, generate a clock synchronized with the E1 clock, and then send an E1 clock of the transmission network to each of the base stations, so that Each base station uses the E1 clock of the transmission network as a reference clock to generate a clock synchronized with the E1 clock.
  • the E1 clock of the transmission network is a well-known clock and will not be described in detail here.
  • the base station controller calculates, according to frame information of the base station controlled by the base station controller, a difference value between the frame information of each non-base station and the reference, and generates each non-division value according to the difference value of each non-base station. Frame offset information for the base station.
  • the non-base station may refer to a base station without a global positioning system core card; and the base station may refer to a base station with GPS installed.
  • the foregoing frame information may include
  • the above frame offset information may include
  • the frame number to be adjusted and the intra-frame bit offset value to be adjusted are the frame number to be adjusted and the intra-frame bit offset value to be adjusted.
  • the step 204 is performed to calculate, respectively, the difference between the frame information of each of the non-base stations and the reference station:
  • the foregoing step may be: calculating whether the frame number of the frame of the reference station of each of the non-base stations is the same at a certain moment, and if the same, calculating a difference value of the intra-frame bit offset of the frames, the intra-frame bit
  • the offset may refer to a time offset value of the same bit of the frames, such as a time offset value of the first bit in the frames; when there is a frame in the frame of the non-base station that is different from the frame number of the frame of the base station, this Calculating the frame number difference values of the frames different from the frame number of the frame of the base station and the frame of the base station, and calculating the frame bits of the frames different from the frame of the base station and the frame bits of the frame with the base station The difference value of the shift.
  • the base station controller may be: first calculating a frame information difference value of the non-base station adjacent to the reference station and the base station, and then using the newly calculated non-base station and the non-base station adjacent to the non-base station The frame information difference value of the base station, and so on, can calculate the frame information difference value of each non-base station and the base station.
  • the frame information of the foregoing reference station and the frame information of each of the foregoing base stations may be specifically acquired by a base station controller or stored in advance.
  • the frame information of the reference station and each non-base station can be obtained from the behavior information of the user equipment under the base station service and the user equipment under each non-base station service.
  • the method may further include:
  • the base station controller acquires behavior information of the user equipment under the base station service and the user equipment of the non-base station service, where the behavior information includes frame information;
  • the frame information of the base station and each non-base station is acquired from the behavior information.
  • generating, according to the difference value of each non-base station, the frame offset information of each non-base station in step 204 may include:
  • the base station controller uses the difference value of each non-base station as the frame offset information of each non-base station.
  • the difference between the frame number of the non-base station 1 and the frame number of the base station is 3, and the intra-frame bit offset difference value is 5 bits, and the frame offset information for the non-base station is the frame number offset 3
  • the intra-frame bit offset is 5 bits.
  • the difference value further includes a frame number difference and an intra-frame bit offset direction, that is, the frame information may further include: a frame number offset and an intra-frame bit offset direction.
  • the information, that is, the above 3 is the frame number plus 3 or minus 3, and the above 5 bits are shifted forward or backward.
  • the base station controller separately sends the generated frame offset information to each non-base station, so that each non-base station adjusts the frame information to the frame information synchronized with the reference according to the received frame offset information.
  • step 203 and step 204 may be performed simultaneously, or step 204 may be performed first, and step 203 is performed after step 204.
  • the method may further include the following steps:
  • the base station controller transmits information including the clock of the base station controller to the base station to cause the base station to synchronize the clock adjustment with the clock of the base station controller.
  • Step 201 and step 203 can be omitted. That is, in this embodiment, the clock of the base station controller is a clock uniformly designated in the network where the base station controller is located.
  • the clocks of all base station controllers in the network are synchronized, and clock synchronization of all base stations under the base station controller is implemented.
  • the base station controller does not need to install a GPS core card to save costs.
  • the method further includes:
  • step 204 and step 205 are repeatedly performed, that is, the base station controller calculates the frame information of each of the base stations and the reference separately based on the frame information of the base station controlled by the base station controller. And a difference value, and generating frame offset information of each of the non-base stations according to the difference value of each of the base stations, where the base station controller separately sends the generated frame offset information to each non-base station .
  • the base station may be periodically adjusted to adjust the frame information to ensure that the frame information between the base stations is synchronized.
  • FIG. 3 is a schematic flowchart of another method for air interface synchronization according to an embodiment of the present invention. As shown in FIG. 3, the method includes:
  • the base station controller receives, by the base station controlled by the base station controller, information including a clock of the base station;
  • the base station controller adjusts a clock to a clock synchronized with a clock of the base station.
  • the clock of the base station is uniformly designated by the network, and the clock signal transmitted by the satellite through the GPS core card is designated, and the clock generated according to the pulse signal is specified.
  • the base station controller can generate a clock synchronized with the clock of the base station, so that the clock of the base station controller is uniformly designated by the network.
  • the clock of each base station in the same network can be the clock generated by the foregoing manner, the clocks of each base station in the same network can be synchronized.
  • Base station control The controller then adjusts the clock to a clock synchronized with the clock of the base station, and all non-base stations under the base station controller are synchronized with the clock controlled by the base station. In this way, the clocks of all base stations in the same network can be synchronized.
  • the base station controller uses the 13M clock as a reference clock to generate a 2M clock of the base station controller synchronized with the clock, and each base station under the base station controller uses the 2M clock of the base station as a reference clock. , generating a 13M clock synchronized with the base station controller's 2M clock.
  • the base station may further send the clock of the base station to all non-base stations under the base station controller to which the base station belongs, so that the base station that receives the clock adjusts the clock to The clock of the base station's clock synchronization.
  • the base station controller sends information including a clock of the base station controller to each non-base station controlled by the base station controller, so that each non-base station adjusts a clock to a clock with the base station controller. Synchronized clock.
  • the non-base station may refer to a base station without a global positioning system core card; and the base station may refer to a base station with GPS installed.
  • the base station controller calculates, according to frame information of the reference station controlled by the base station controller, a difference value between the frame information of each non-base station and the reference, and generates a difference value according to each non-base station. Frame offset information for each of the non-base stations.
  • the base station controller separately sends the generated frame offset information to each non-base station, so that each non-base station adjusts the frame information to the frame information synchronized with the reference according to the received frame offset information.
  • the base station controller adds information of the clock including the reference station transmitted by the base station, and the base station controller adjusts the clock to be synchronized with the clock of the reference station.
  • the steps of the clock This enables the clock base station controller of the base station controller to adjust the clock to a clock synchronized with the clock of the base station.
  • FIG. 4 is a schematic flowchart of another method for air interface synchronization according to an embodiment of the present invention.
  • a base station is equipped with a GPS chip, as shown in FIG. 4, including:
  • the base station receives time information sent by the satellite by using the GPS core card. 402.
  • the base station generates frame information based on the time information and a clock of the base station, where a clock of the base station is synchronized with a clock of the base station controller to which the base station belongs.
  • the base station sends information to the user equipment in the frame, so that the base station controller to which the base station belongs acquires the frame information from the behavior information, and calculates the base station control by using the frame information as a reference.
  • the difference value of the frame information of each non-base station controlled by the device and the reference, and the frame offset information of each of the non-base stations is generated according to the difference value of each of the non-base stations.
  • the non-base station may refer to a base station that does not have a global positioning system core card installed.
  • the sending, by the base station, information to the user equipment in the frame may be any information sent to the user equipment, such as control information, an indication message, or the like.
  • the user equipment performs information transmission with the base station controller in the frame, that is, the base station controller receives the user equipment in the frame.
  • the behavior information sent in the base station controller can obtain the frame information, that is, the frame information generated in step 402, from the behavior information, and the base station controller further calculates the base station controller control based on the frame information.
  • the difference between the frame information of each non-base station and the above reference, and the frame offset information of each non-base station is generated according to the difference value of each non-base station.
  • the non-base station can adjust the frame information to the base station for one to two seconds. In this way, the frame information of all base stations under the base station controller can be synchronized.
  • each base station controller uses the synchronization mode provided by the present invention, so that the frame information and the clock of all the base stations in the same network are synchronized, so that the air interface resources of all base stations in the same network are synchronized. .
  • the upper base station may specifically be any base station in which the GPS core card is installed in the work of the base station controller.
  • the base station receives time information of the satellite transmission through the GPS core card, and the base station generates frame information based on the time information and the clock of the base station, where the clock of the base station is uniformly deployed by the network; Transmitting information to the user equipment in the frame, so that the base station controller acquires the frame information from the behavior information, and respectively calculates, according to the frame information, a frame of each non-base station controlled by the base station controller a difference value of the information from the reference, and generating frame offset information for each of the non-base stations based on the difference value of each of the non-base stations.
  • FIG. 5 is a schematic flowchart of another method for air interface synchronization according to an embodiment of the present invention.
  • the base station is equipped with a GPS chip, as shown in FIG. 5, including:
  • the base station receives time information sent by the satellite by using the GPS core card.
  • the base station receives, by the base station controller to which the base station belongs, information including a clock of the base station controller.
  • the base station adjusts a clock to synchronize a clock with the clock of the base station controller.
  • the clock of the base station is a clock synchronized with the clock of the base station controller, and the clock of the base station controller is uniformly designated by the network, that is, the clock of the base station is unified by the network. designated.
  • the clock of the base station controller is a clock of 2M
  • the base station uses the 2M clock as a reference clock to generate a 13M clock synchronized with the 2M clock.
  • step 502 may specifically include:
  • the base station receives the E1 clock of the transmission network, and the E1 clock is synchronized with the clock of the base station controller.
  • Step 503 specifically includes:
  • the base station adjusts the clock to a clock that is synchronized with the E1 clock.
  • the clock of the base station can be synchronized with the E1 clock of the transmission network.
  • the E1 clock is synchronized with the clock of the base station controller. It can also be understood that the clock of the base station is synchronized with the clock of the base station controller.
  • the base station generates frame information based on the time information and a clock of the base station, where the frame information includes a frame number and intra-frame bit information.
  • the base station sends information to the user equipment in the frame, so that the base station controller to which the base station belongs receives the behavior information that is sent by the user equipment in the frame, and the base station controller acquires the frame information from the behavior information. And calculating, according to the frame information, a difference value between the frame information of each non-base station controlled by the base station controller and the reference, and generating each non-base station according to the difference value of each non-base station Frame offset information.
  • the non-base station may refer to a base station that does not have a global positioning system core card installed.
  • the base station receives the information of the clock that is sent by the base station controller and includes the clock of the base station controller, and the step that the base station adjusts the clock to synchronize with the clock of the base station controller. This makes it possible to synchronize the clock of the base station with the clock of the base station controller. At the same time, it is also possible to realize that the air interface resources of all base stations under different base station controllers in the network are synchronized, and reduce the cost of the communication system.
  • FIG. 6 is a schematic flowchart of another method for air interface synchronization according to an embodiment of the present invention.
  • the base station is installed with a GPS core, as shown in FIG. 6, and includes:
  • the base station receives time information sent by the satellite by using the GPS core card.
  • the base station receives, by using the GPS core card, a pulse signal sent by a satellite.
  • step 601 and the step 601 may be performed in synchronization, and the time information and the pulse signal may specifically belong to the same information.
  • the base station generates a clock of the base station according to the received pulse signal.
  • the clock of the base station is uniformly deployed by the network, and the clock generated according to the pulse signal sent by the satellite is specified.
  • the base station generates frame information based on the time information and a clock of the base station, where the frame information includes a frame number and intra-frame bit information.
  • the base station sends information to the user equipment in the frame, so that the base station controller to which the base station belongs receives the behavior information that is sent by the user equipment in the frame, and the base station controller acquires the behavior from the behavior information.
  • Frame information and calculating, according to the frame information, a difference value of frame information of each non-base station controlled by the base station controller and the reference, and according to the difference of each of the non-base stations The value generates frame offset information for each of the non-base stations.
  • the non-base station may refer to a base station that does not have a global positioning system core card installed.
  • the method may further include:
  • the base station sends information including a clock of the base station controller to the base station, so that the base station controller adjusts a clock to a clock synchronized with a clock of the base station.
  • time of the execution of the step 606 and the time of the step 606 can be performed after the step 603, as in the same step 604.
  • the base station receives the pulse signal sent by the satellite through the GPS core card, and the base station generates the clock of the base station according to the received pulse signal. Steps. In this way, the clock of the base station is generated by the pulse information transmitted by the satellite. At the same time, it is also possible to realize that the air interface resources of all base stations under different base station controllers in the network are synchronized, and reduce the cost of the communication system.
  • FIG. 7 is a schematic flowchart of another method for air interface synchronization according to an embodiment of the present invention. As shown in FIG. 7, the method includes:
  • the base station receives information that is sent by the base station controller and includes a clock of the base station controller, and adjusts the clock to a clock that is synchronized with a clock of the base station controller.
  • the clock of the base station controller may be a clock uniformly designated by the network, so that the clocks of the base station and the base station controller are synchronized, and the clock of the base station controller is uniformly designated by the network, that is, all the same network.
  • the clocks of the base station controllers are all synchronized, so that the clocks of all base stations in the same network are synchronized.
  • the base station receives frame offset information sent by the base station controller, where the frame offset information is that the base station controller calculates frame information of the base station by using frame information of a reference station controlled by the base station controller. a difference value of the reference, and generated according to the difference value of the base station; a clock of the base station is synchronized with a clock of the base station controller;
  • the above reference station may refer to a base station with GPS installed.
  • the base station adjusts the frame information to frame information synchronized with the reference according to the received frame offset information.
  • the frame information of all the base stations under the base station controller can be synchronized, and the clock of the base station is generated based on the time information transmitted by the satellite, that is, the reference for working under each base station controller in the same network.
  • the clocks of the stations are generated based on the time information transmitted by the satellites, so that the frame information of each base station under the network can be synchronized.
  • the above can be obtained that the frame information of all base stations in the same network is synchronized.
  • the clock and frame information of all base stations in the same network are synchronized, and all the air interface resources of the base station in the same network are synchronized.
  • the method may further include:
  • the base station sends information to the user equipment, so that the base station controller to which the base station belongs receives the behavior information sent by the user equipment, and the base station controller reads the frame information of the base station from the behavior information, and Calculating frame information of the base station and the reference based on frame information of the base station a difference value, and generating frame offset information of the base station according to the difference value.
  • this step may be performed after step 703.
  • the step may be performed before 701.
  • the frame information sent is the frame information before the adjustment.
  • step 701, step 702, and step 703 may be performed periodically, so that the frame number and the intra-frame bit offset may be periodically adjusted.
  • the foregoing frame information may include:
  • the above frame information may include
  • the above frame offset information may include
  • the frame number to be adjusted and the intra-frame bit offset value to be adjusted are the frame number to be adjusted and the intra-frame bit offset value to be adjusted.
  • step 703 can include:
  • the base station offsets the frame number of the base station from the intra-frame bit according to the received frame offset information, and adjusts to synchronize with the reference. That is, the base station adjusts the frame number and the intra-frame bit offset to match the frame number of the base station and the intra-frame bit offset.
  • the base station receives the information that is sent by the base station controller and includes the clock of the base station controller, and adjusts the clock to a clock that is synchronized with the clock of the base station controller; the base station receives the frame offset sent by the base station controller. Transmitting information; the base station adjusts the frame information to frame information synchronized with the reference according to the received frame offset information.
  • the clock and frame information of all the base stations in the base station controller are synchronized, that is, the air interface resources of all the base stations in the base station controller are synchronized, so that the air interface resources of all the base stations under different base station controllers in the network are synchronized.
  • FIG. 8 is a schematic structural diagram of a base station controller according to an embodiment of the present invention. As shown in FIG. 8, the method includes: a clock information sending unit 11, a frame offset information generating unit 12, and a frame offset information sending unit. 13 , where:
  • a clock information sending unit 11 configured to send information including a clock of the base station controller to each non-base station controlled by the base station controller, so that each non-base station adjusts a clock to be controlled by the base station The clock of the clock is synchronized.
  • the clock synchronized with the clock of the base station controller is a clock that is synchronized with the clock of the base station controller by using the clock of the base station controller as a reference clock. If the clock of the base station controller is a clock of 2M, the base station receives the clock. After the clock, the 2M clock can be used as a reference clock to generate a 13M clock. This makes it possible to synchronize the clocks of all non-base stations under the base station controller.
  • the frame offset information generating unit 12 is configured to calculate, according to the frame information of the base station controlled by the base station controller, a difference value between the frame information of each non-base station and the reference, and according to each non-reference The difference value of the station generates frame offset information of each of the non-base stations; the frame information of the base station is generated based on acquiring time information of the satellite transmission by the global positioning system core card and a clock of the base station, The clock of the base station is synchronized with the clock transmitted by the clock information transmitting unit 11.
  • the base station controller acquires the frame information of each non-base station and the frame information of the reference station before the frame offset information generating unit 12 performs the above calculation.
  • the frame information of the base station and each non-base station can be obtained from the behavior information of the user equipment under the base station service and the user equipment under each non-base station service.
  • the frame offset information transmitting unit 13 is configured to separately send the frame offset information generated by the frame offset information generating unit 12 to each non-base station, so that each non-base station sends the frame information according to the received frame offset information. Adjusted to frame information synchronized with the reference.
  • the clock and frame information of all base stations in the network are synchronized, and the air interface resources of all base stations in the same network are synchronized.
  • the embodiment of the present invention only the GPS core card installed in the base station is installed. Compared with the prior art, each base station and the base station controller are installed with GPS. The embodiment of the present invention can reduce the cost of the communication system.
  • the non-base station may refer to a base station without a global positioning system core card; and the base station may refer to a base station with GPS installed.
  • the base station controller sends information including a clock of the base station controller to each non-base station controlled by the base station controller; and base station controller uses frame information of the base station controlled by the base station controller.
  • base station controller uses frame information of the base station controlled by the base station controller. For the reference, respectively calculating a difference value of the frame information of each non-base station and the reference, and generating frame offset information of each non-base station according to the difference value of each non-base station; the base station controller The generated frame offset information is sent to each non-base station, respectively.
  • FIG. 9 is a schematic structural diagram of another base station controller according to an embodiment of the present invention.
  • a base station controller is installed with a GPS core card, as shown in FIG. 9, including: a pulse signal receiving unit 21 and a clock generating unit. 22.
  • the pulse signal receiving unit 21 is configured to receive a pulse signal sent by the satellite through the GPS core card, and the clock generating unit 22 is configured to generate a clock of the base station controller according to the pulse signal received by the pulse signal receiving unit 21.
  • the clock of the base station controller is uniformly designated by the network, and the clock generated according to the pulse signal transmitted by the satellite is specified. In this way, the clock of each base station controller in the same network can be synchronized.
  • the clock of the base station controller may specifically be a 2M clock.
  • a clock information sending unit 23 configured to send information including a clock of the base station controller to each non-base station controlled by the base station controller, so that each non-base station adjusts a clock to be controlled by the base station The clock of the clock is synchronized.
  • the frame offset information generating unit 24 is configured to calculate, according to the frame information of the reference station controlled by the base station controller, a difference value between the frame information of each non-base station and the reference, and according to each non-base station The difference value generates frame offset information for each non-base station.
  • the non-base station may refer to a base station without a global positioning system core card; and the base station may refer to a base station with GPS installed.
  • the foregoing frame information may include
  • the above frame offset information may include
  • the frame number to be adjusted and the intra-frame bit offset value to be adjusted are the frame number to be adjusted and the intra-frame bit offset value to be adjusted.
  • the frame offset information generating unit 24 is further configured to separately calculate each non-reference at the same time.
  • the frame offset information generating unit 24 may be further configured to separately calculate a difference value of an intra-frame bit offset of a frame of the non-base station and the reference station at the same time.
  • the frame offset information generating unit 24 may be: first calculating a frame information difference value of the non-base station adjacent to the reference station and the base station, and then using the newly calculated non-base station and the non-base station The frame information difference value of the adjacent non-base station, and so on, can calculate the frame information difference value of each non-base station and the base station.
  • the frame information of the foregoing reference station and the frame information of each of the foregoing base stations may be specifically acquired by a base station controller or stored in advance.
  • the frame information of the reference station and each non-base station can be obtained from the behavior information of the user equipment under the base station service and the user equipment under each non-base station service.
  • the base station controller may further include:
  • the behavior information acquiring unit is configured to acquire behavior information of the user equipment under the base station service and the user equipment under the non-standard base station service, where the behavior information includes frame information.
  • the behavior information acquisition unit can acquire the frame information of the base station and each of the non-reference stations from the above-described behavior information.
  • the frame offset information transmitting unit 25 is configured to separately send the frame offset information generated by the frame offset information generating unit 24 to each non-base station, so that each non-base station sends the frame information according to the received frame offset information. Adjusted to the frame information synchronized with the above reference.
  • the clock information transmitting unit 22 may be further configured to send information including a clock of the base station controller to the reference station, so that the base station controller synchronizes the clock adjustment with the clock of the base station controller, so that the base station can be implemented.
  • the clock is synchronized with the clock of the base station controller.
  • the pulse signal receiving unit 21 and the first clock adjusting unit 22 can be omitted in the present invention.
  • the clock of the base station controller is a uniformly designated clock in the network where the base station controller is located.
  • the clocks of all base station controllers in the network are synchronized, and clock synchronization of all base stations under the base station controller is implemented.
  • the base station controller does not need to install a GPS core card to save costs.
  • the frame information of the foregoing base station and the frame of each of the foregoing base stations may specifically be pre-acquired by the base station controller or pre-stored.
  • the frame information of the base station and each non-base station can be obtained from the behavior information of the user equipment under the base station service and the user equipment under each non-base station service.
  • the base station controller may further include:
  • the behavior information acquiring unit 26 is configured to acquire behavior information of the user equipment under the base station service and the user equipment under the non-base station service, where the behavior information includes frame information.
  • the behavior information acquisition unit can acquire the frame information of the base station and each of the non-reference stations from the above-described behavior information.
  • the frame offset information generating unit 24 is further operable to acquire the frame information of the base station and each non-base station from the behavior information acquired by the behavior information acquiring unit 26.
  • the frame offset information generating unit 24 may be further configured to calculate each of the base stations separately based on frame information of the reference station controlled by the base station controller when a preset time is reached. a difference value between the frame information and the reference, and generating frame offset information of each of the non-base stations according to the difference value of each of the base stations;
  • the frame offset information transmitting unit 25 can also be configured to separately transmit the frame offset information generated by the frame offset information generating unit 24 to each non-base station when the preset time is reached.
  • the base station may be periodically adjusted to adjust the frame information to ensure that the frame information between the base stations is synchronized.
  • a pulse signal receiving unit is configured to receive a pulse signal transmitted by the satellite through the GPS core card
  • the first clock adjusting unit is configured to generate the pulse according to the received pulse signal.
  • the clock of the base station controller is configured to generate the pulse according to the received pulse signal.
  • the clock of the base station controller can be generated based on the pulse signal transmitted by the satellite.
  • FIG. 11 is a schematic structural diagram of another base station controller according to an embodiment of the present invention. As shown in FIG. 11, the method includes: a clock information receiving unit 31, a clock adjusting unit 32, a clock information sending unit 33, and a frame offset information generating unit. 34 and frame offset information transmitting unit 35, wherein:
  • the clock information receiving unit 31 is configured to receive, by the base station controlled by the base station controller, information including a clock of the base station;
  • a clock adjustment unit 32 configured to adjust a clock of the base station controller to a clock with the base station Synchronized clock.
  • the clock of each base station in the same network can be the clock generated by the above manner, the clocks of each base station in the same network can be synchronized.
  • the base station controller then adjusts the clock to a clock synchronized with the clock of the base station, and all non-base stations under the base station controller are synchronized with the base station controlled clock. In this way, the clocks of all base stations in the same network can be synchronized.
  • the base station may further send the clock of the base station to all non-base stations under the base station controller to which the base station belongs, so that the base station that receives the clock adjusts the clock to The clock of the base station's clock synchronization.
  • a clock information sending unit 33 configured to send information including a clock of the base station controller to each non-base station controlled by the base station controller, so that each non-base station adjusts a clock to be controlled by the base station The clock of the clock is synchronized.
  • the non-base station may refer to a base station without a global positioning system core card; and the base station may refer to a base station with GPS installed.
  • the frame offset information generating unit 34 is configured to calculate, according to the frame information of the reference station controlled by the base station controller, a difference value between the frame information of each non-base station and the reference, and according to each non-reference a difference value of the station generates frame offset information for each of the non-base stations;
  • the frame offset information transmitting unit 35 is configured to separately send the frame offset information generated by the frame offset information generating unit 34 to each non-base station, so that each non-base station sends the frame information according to the received frame offset information. Adjusted to the frame information synchronized with the above reference.
  • a clock information receiving unit is configured to receive information of a clock including the reference station sent by the reference station
  • a second clock adjusting unit is configured to receive the The clock is a step of generating a clock of the base station controller as a reference. This allows the base station controller's clock to be based on the base station's clock. At the same time, it is also possible to realize that the air interface resources of all base stations under different base station controllers in the network are synchronized, and reduce the cost of the communication system.
  • FIG. 12 is a schematic structural diagram of a base station according to an embodiment of the present invention. In this embodiment, a base station is installed with a GPS chip. As shown in FIG. 12, the method includes: a time information receiving unit 41, a frame information generating unit 42, and an information sending unit. 43 , where:
  • the frame information generating unit 42 is configured to generate frame information based on the time information received by the time information receiving unit and the clock of the base station, where the clock of the base station is synchronized with the clock of the base station controller to which the base station belongs;
  • the information sending unit 43 is configured to send information to the user equipment in the frame, so that the base station controller acquires the frame information from the behavior information, and separately calculate the base station controller by using the frame information as a reference. Controlling a difference value of frame information of each non-base station from the reference, and generating frame offset information of each of the non-base stations according to the difference value of each of the non-base stations.
  • the non-base station may refer to a base station that does not have a global positioning system core card installed.
  • the user equipment performs information transmission with the base station controller in the frame, that is, the base station controller receives the user equipment in the frame.
  • the behavior information is sent, so that the base station controller can obtain the frame information, that is, the frame information generated by the frame information generating unit 42 from the behavior information, and the base station controller further calculates the base station based on the frame information.
  • the difference between the frame information of each non-base station controlled by the controller and the above reference, and the frame offset information of each non-base station is generated according to the difference value of each non-base station.
  • the non-base station can adjust the frame information to the base station for one to two seconds.
  • each base station controller uses the synchronization mode provided by the present invention, so that the frame information and the clock of all the base stations in the same network are synchronized, so that the air interface resources of all base stations in the same network are synchronized.
  • the base station may be any base station installed with a GPS core card in the work of the base station controller.
  • the base station receives time information of the satellite transmission through the GPS core card, and the base station generates frame information based on the time information and the clock of the base station, where the clock of the base station is uniformly deployed by the network; Transmitting information to the user equipment in the frame, so that the base station controller acquires the frame information from the behavior information, and respectively calculates, according to the frame information, a frame of each non-base station controlled by the base station controller a difference value of the information from the reference, and generating frame offset information for each of the non-base stations based on the difference value of each of the non-base stations.
  • the air interface resources of all base stations under different base station controllers in the network are synchronized, and the cost of the communication system is reduced.
  • the base station is equipped with a GPS chip.
  • the method includes: a time information receiving unit 51, a clock information receiving unit 52, a clock adjustment unit 53, a frame information generating unit 54, and an information transmitting unit 55, wherein: a time information receiving unit 51, configured to receive time information transmitted by the satellite through the GPS core card; and a clock information receiving unit 52, configured to receive the base station Information about the clock of the base station controller sent by the associated base station controller;
  • the clock adjustment unit 53 is configured to synchronize the clock of the base station with the clock of the base station controller.
  • the clock of the base station is a clock synchronized with the clock of the base station controller, and the clock of the base station controller is uniformly designated by the network, that is, the clock of the base station is unified by the network. designated.
  • the clock information receiving unit 52 may specifically be configured to receive an E1 clock of the transmission network, where the E1 clock is synchronized with a clock of the base station controller.
  • the first clock adjustment unit 53 can also be specifically configured to adjust the clock of the base station to a clock synchronized with the E1 clock.
  • the clock of the base station can be synchronized with the E1 clock of the transmission network.
  • the E1 clock is synchronized with the clock of the base station controller. It can also be understood that the clock of the base station is synchronized with the clock of the base station controller.
  • the frame information generating unit 54 is configured to generate frame information based on the time information and a clock of the base station, where the frame information includes a frame number and intra-frame bit information;
  • the information sending unit 55 is configured to send information to the user equipment in the frame, so that the base station controller to which the base station belongs receives the behavior information that is sent by the user equipment in the frame, and the base station controller acquires the behavior information. And calculating frame information, and calculating, according to the frame information, a difference value between frame information of each non-base station controlled by the base station controller and the reference, and generating each difference value according to each non-base station Frame offset information for non-base stations.
  • the base station receives information of a clock that is sent by the base station controller and includes a clock of the base station controller, and a clock that the base station synchronizes with the clock of the base station controller.
  • This makes it possible to synchronize the clock of the base station with the clock of the base station controller.
  • it is also possible to realize that the air interface resources of all base stations under different base station controllers in the network are synchronized, and reduce the cost of the communication system.
  • FIG. 14 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • the base station is equipped with a GPS chip. As shown in FIG.
  • the method includes: a time information receiving unit 61, a pulse signal receiving unit 62, a clock generating unit 63, a frame information generating unit 64, and an information transmitting unit 65, wherein: a time information receiving unit 61, configured to receive time information transmitted by the satellite through the GPS core card; a pulse signal receiving unit 62, configured to pass the The GPS chip receives the pulse signal sent by the satellite; the clock generating unit 63 is configured to generate a clock of the base station according to the pulse signal received by the pulse signal receiving unit.
  • the clock of the base station is uniformly deployed by the network, and the clock generated according to the pulse signal sent by the satellite is specified.
  • the frame information generating unit 64 is configured to generate frame information based on the time information received by the time information receiving unit and the clock of the base station, where the frame information includes a frame number and intra-frame bit information;
  • the information sending unit 65 is configured to send information to the user equipment in the frame, so that the base station controller to which the base station belongs receives behavior information that is sent by the user equipment in the frame, and the base station controller acquires the behavior information. And calculating, according to the frame information, a difference value of frame information of each non-base station controlled by the base station controller and the reference, and according to each non-base station The difference value generates frame offset information for each of the non-base stations.
  • the base station may further include:
  • the clock information sending unit 66 is configured to send information including a clock of the base station to the base station controller, so that the base station controller adjusts a clock to a clock synchronized with a clock of the base station.
  • the pulse signal receiving unit is configured to receive a pulse signal transmitted by the satellite through the GPS core card
  • the second clock adjusting unit is configured to generate the pulse signal according to the received pulse signal.
  • the clock of the base station is generated by the pulse information transmitted by the satellite.
  • FIG. 16 is a schematic structural diagram of another base station according to an embodiment of the present invention. As shown in FIG.
  • the method includes: a clock information receiving unit 71, a frame offset information receiving unit 72, and an adjusting unit 73, wherein: the clock information receiving unit 71 And receiving, by the base station controller, information including a clock of the base station controller, and adjusting the clock to a clock synchronized with a clock of the base station controller.
  • the clock of the base station controller may be a clock uniformly designated by the network, so that the clocks of the base station and the base station controller are synchronized, and the clock of the base station controller is uniformly designated by the network, that is, all the same network.
  • the clocks of the base station controllers are all synchronized, so that the clocks of all base stations in the same network are synchronized.
  • a frame offset information receiving unit 72 configured to receive frame offset information sent by the base station controller, where the frame offset information is based on frame information of a base station controlled by the base station controller Calculating a difference value between the frame information of the base station and the reference, and generating according to the difference value of the base station; the clock of the base station is synchronized with a clock of the base station controller;
  • the above reference station may refer to a base station with GPS installed.
  • the adjusting unit 73 is configured to adjust the frame information to the frame information synchronized with the reference according to the frame offset information received by the frame offset information receiving unit.
  • the clock and frame information of all base stations in the same network are synchronized, and all the air interface resources of the base station in the same network are synchronized.
  • the base station may further include:
  • An information sending unit (not shown in the drawing), configured to send information to the user equipment, to receive, by the base station controller to which the quasi-station belongs, action information sent by the user equipment, where the base station controller uses the behavior information Reading frame information of the base station, calculating a difference value between the frame information of the base station and the reference, and generating a frame offset of the base station according to the difference value, based on the frame information of the reference station Move information.
  • the foregoing frame information may include:
  • the above frame information may include
  • the above frame offset information may include
  • the frame number to be adjusted and the intra-frame bit offset value to be adjusted are the frame number to be adjusted and the intra-frame bit offset value to be adjusted.
  • the adjusting unit 73 is further configured to adjust, according to the received frame offset information, a frame number of the base station and an intra-frame bit to be synchronized with the reference. That is, the base station adjusts the frame number and the intra-frame bit offset to match the frame number of the base station and the intra-frame bit offset.
  • the clock information receiving unit receives the information of the clock of the base station controller sent by the base station controller, and adjusts the clock to a clock synchronized with the clock of the base station controller; the frame offset information receiving unit receives the base station. Frame offset information sent by the controller; the adjusting unit receives according to the The frame offset information adjusts the frame information to frame information synchronized with the reference.
  • the clock and frame information of all the base stations in the base station controller are synchronized, that is, the air interface resources of all the base stations in the base station controller are synchronized, so that the air interface resources of all the base stations under different base station controllers in the network are synchronized.
  • FIG. 17 is a schematic structural diagram of a system for air interface synchronization according to an embodiment of the present invention. As shown in FIG. 17, the method includes: a base station controller 81, a first base station 82, and a second base station 83;
  • the base station controller 81 is the base station controller of any of the embodiments shown in FIG. 8 to FIG. 11; the first base station 82 is the base station of any of the embodiments shown in FIG. 12 to FIG.
  • the second base station 83 is a base station of any of the embodiments shown in Fig. 6.
  • the base station controller sends information including a clock of the base station controller to each non-base station controlled by the base station controller; and base station controller uses frame information of the base station controlled by the base station controller.
  • base station controller uses frame information of the base station controlled by the base station controller. For the reference, respectively calculating a difference value of the frame information of each non-base station and the reference, and generating frame offset information of each non-base station according to the difference value of each non-base station; the base station controller generates the frame The frame offset information is sent to each non-base station separately.
  • FIG. 18 is a schematic structural diagram of another base station controller according to an embodiment of the present invention. As shown in FIG. 18, the method includes: a transmitter 91 and a processor 92, where:
  • a transmitter 91 configured to send information including a clock of the base station controller to each non-base station controlled by the base station controller, so that each non-base station adjusts a clock to be compared with the base station controller Clock synchronized clock;
  • the processor 92 is configured to perform the following steps:
  • the frame information of the base station is based on acquiring through the global positioning system core card The time information transmitted by the satellite and the clock of the base station are generated, and the clock of the base station is synchronized with the clock of the base station controller;
  • the transmitter 91 is further configured to separately send the generated frame offset information to each non-base station, so that each of the non-base stations adjusts the frame information to be synchronized with the reference according to the received frame offset information. Frame information.
  • the non-base station may refer to a base station without a global positioning system core card; and the base station may refer to a base station with GPS installed.
  • the base station controller sends information including a clock of the base station controller to each non-base station controlled by the base station controller; and base station controller uses frame information of the base station controlled by the base station controller.
  • base station controller uses frame information of the base station controlled by the base station controller. For the reference, respectively calculating a difference value of the frame information of each non-base station and the reference, and generating frame offset information of each non-base station according to the difference value of each non-base station; the base station controller generates the frame The frame offset information is sent to each non-base station separately.
  • FIG. 19 is a schematic structural diagram of another base station controller according to an embodiment of the present invention. As shown in FIG. 19, the method includes: a receiver 101, a processor 102, and a transmitter 103, where:
  • a receiver 101 configured to receive, by using a GPS core card, a pulse signal sent by a satellite;
  • the processor 102 is configured to perform the following steps:
  • a transmitter 103 configured to send information including a clock of the base station controller to each non-base station controlled by the base station controller, so that each non-base station adjusts a clock to be compared with the base station controller Clock synchronized clock;
  • the processor 102 is further configured to perform the following steps:
  • the transmitter 103 can also be configured to separately send the generated frame offset information to each non-base station. So that each non-base station adjusts the frame information to the frame information synchronized with the above reference based on the received frame offset information.
  • the non-base station may refer to a base station without a global positioning system core card; and the base station may refer to a base station with GPS installed.
  • the clock of the base station controller is uniformly designated by the network, and the clock generated according to the pulse signal transmitted by the satellite is specified. In this way, the clock of each base station controller in the same network can be synchronized.
  • the base station controller may further control the E1 clock of the transmission network as a reference clock, generate a clock synchronized with the E1 clock, and then send an E1 clock of the transmission network to each of the base stations, so that Each base station uses the E1 clock of the transmission network as a reference clock to generate a clock synchronized with the E1 clock.
  • the E1 clock of the transmission network is a well-known clock and will not be described in detail here.
  • the foregoing frame information may include
  • the above frame offset information may include
  • the frame number to be adjusted and the intra-frame bit offset value to be adjusted are the frame number to be adjusted and the intra-frame bit offset value to be adjusted.
  • the step of the processor 102 respectively calculating the difference between the frame information of each of the non-base stations and the reference station may include:
  • the base station controller may be: first calculating a frame information difference value of the non-base station adjacent to the reference station and the base station, and then using the newly calculated non-base station and the non-base station adjacent to the non-base station The frame information difference value of the base station, and so on, can calculate the frame information difference value of each non-base station and the base station.
  • the frame information of the foregoing reference station and the frame information of each of the foregoing base stations may be specifically acquired by a base station controller or stored in advance.
  • the frame information of the reference station and each non-base station can be obtained from the behavior information of the user equipment under the base station service and the user equipment under each non-base station service.
  • the receiver 101 is further configured to obtain behavior information of the user equipment under the base station service and the user equipment under the non-base station service, where the behavior information includes frame information.
  • the processor 102 can also be configured to perform the following steps:
  • the transmitter 103 may be further configured to send information including a clock of the base station controller to the reference station, so that the base station adjusts a clock with the base station controller. Clock synchronization.
  • the step of generating a frame offset information for each of the non-base stations may include:
  • the base station controller uses the frame information of the reference station controlled by the base station controller as a reference, calculating a difference value between the frame information of each of the base stations and the reference, and according to each base station The difference value generates frame offset information for each of the non-base stations.
  • the receiver 101 is further configured to receive information about a clock that is sent by the base station controlled by the base station controller and includes the reference station.
  • the processor 102 is further configured to perform the following steps:
  • the clock of the base station controller is adjusted to a clock synchronized with the clock of the base station.
  • This embodiment can synchronize the clock of the base station controller with the clock of the base station.
  • the base station controller may further include:
  • the memory 104 is configured to store a program executed by the processor.
  • FIG. 20 is a schematic structural diagram of another base station according to an embodiment of the present invention.
  • the base station is equipped with a GPS chip, as shown in FIG. 20, including: a receiver 111, a processor 112, and a transmitter 113, where: a receiver 111, For receiving time information transmitted by the satellite through the global positioning system core card; the processor 112 is configured to perform the following steps: Generating frame information based on the time information and a clock of the base station, where a clock of the base station is synchronized with a clock of the base station controller to which the base station belongs;
  • the transmitter 113 is configured to send information to the user equipment in the frame, so that the base station controller acquires the frame information from the behavior information, and calculate, by using the frame information, the base station controller, respectively. And a difference value of the frame information of each non-base station and the reference, and generating frame offset information of each of the non-base stations according to the difference value of each of the non-base stations.
  • the base station may be any base station installed with a GPS core card in the work of the base station controller.
  • the non-base station may refer to a base station that does not have a global positioning system core card installed.
  • the base station receives time information of the satellite transmission through the GPS core card, and the base station generates frame information based on the time information and the clock of the base station, where the clock of the base station is uniformly deployed by the network; Transmitting information to the user equipment in the frame, so that the base station controller acquires the frame information from the behavior information, and respectively calculates, according to the frame information, a frame of each non-base station controlled by the base station controller a difference value of the information from the reference, and generating frame offset information for each of the non-base stations based on the difference value of each of the non-base stations.
  • the air interface resources of all base stations under different base station controllers under the network are synchronized, and the cost of the communication system is reduced.
  • the base station is equipped with a GPS chip, as shown in FIG. 21, and includes: a receiver 121, a processor 122, and a transmitter 123, where: the receiver 121 is used by Receiving time information transmitted by the satellite through the GPS core card;
  • the receiver 121 is further configured to: use, by the base station controller to which the base station belongs, information that includes a clock of the base station controller;
  • the processor 122 is configured to perform the following steps:
  • the frame information includes a frame number and intra-frame bit information
  • the transmitter 123 is configured to send information to the user equipment in the frame, so that the base station controller to which the base station belongs receives behavior information that is sent by the user equipment in the frame, and the base station controller acquires the behavior information from the behavior information. Decoding the frame information, and calculating, according to the frame information, a difference value between the frame information of each non-base station controlled by the base station controller and the reference, and according to the difference value of each non-base station The frame offset information for each non-base station is generated.
  • the receiver 121 is further configured to receive, by using the GPS core card, a pulse signal sent by a satellite;
  • the processor 122 is further configured to perform the following steps:
  • the non-base station may refer to a base station that does not have a global positioning system core card installed.
  • the base station may further include:
  • the memory 124 is configured to store a program executed by the processor 122.
  • the base station receives the information about the clock of the base station controller sent by the base station controller of the base station, and the base station synchronizes the clock adjustment with the clock of the base station controller. Clock.
  • the clock of the base station can be generated based on the clock of the base station controller.
  • FIG. 22 is a schematic structural diagram of another base station according to an embodiment of the present invention. As shown in FIG. 22, the method includes: a receiver 131 and a processor 132, where:
  • a receiver 131 configured to receive, by the base station controller, information that includes a clock of the base station controller
  • the processor 132 is configured to perform the following steps:
  • the receiver 131 is further configured to receive frame offset information sent by the base station controller, where the frame offset information is that the base station controller uses the frame information of the reference station controlled by the base station controller as a reference, and calculates the a difference value between the frame information of the base station and the reference, and generated according to the difference value of the base station; the clock of the base station is synchronized with the clock of the base station controller, and the reference station is installed and installed a base station for a global positioning system core card;
  • the processor 132 is further configured to perform the following steps:
  • the frame information is adjusted to frame information synchronized with the reference based on the received frame offset information.
  • the base station may further include: The transmitter 133 is configured to send information to the user equipment, where the base station controller to which the base station belongs receives the behavior information sent by the user equipment, and the base station controller reads the frame information of the base station from the behavior information, And calculating, according to the frame information of the base station, a difference value between the frame information of the base station and the reference, and generating frame offset information of the base station according to the difference value.
  • the above reference station may refer to a base station with GPS installed.
  • the foregoing frame information may include:
  • the above frame information may include
  • the above frame offset information may include
  • the frame number to be adjusted and the intra-frame bit offset value to be adjusted are the frame number to be adjusted and the intra-frame bit offset value to be adjusted.
  • the step performed by the processor 132 to adjust the frame information to the frame information synchronized with the reference according to the received frame offset information may include:
  • the frame number of the base station is offset from the intra-frame bit according to the received frame offset information, and is adjusted to be synchronized with the reference. That is, the base station adjusts the frame number and the intra-frame bit offset to match the frame number of the base station and the intra-frame bit offset.
  • the base station may further include:
  • the memory 134 is configured to store a program executed by the processor 132.
  • the base station receives the information that is sent by the base station controller and includes the clock of the base station controller, and adjusts the clock to a clock that is synchronized with the clock of the base station controller; the base station receives the frame offset sent by the base station controller. Transmitting information; the base station adjusts the frame information to frame information synchronized with the reference according to the received frame offset information.
  • the clock and frame information of all the base stations in the base station controller are synchronized, that is, the air interface resources of all the base stations in the base station controller are synchronized, so that the air interface resources of all the base stations under different base station controllers in the network are synchronized.
  • FIG. 24 is a schematic structural diagram of a system for air interface synchronization according to an embodiment of the present invention. As shown in FIG. 24, the system includes: a base station controller 141, a first base station 142, and a second base station 143;
  • the base station controller 141 is the base station controller of any one of the embodiments shown in FIG. 18 to FIG. 19; the first base station 142 is the base station of any of the embodiments shown in FIG. 20 to FIG. 21; The second base station 143 is the base station of any of the embodiments shown in FIG. 22 or FIG.
  • the base station controller sends information including a clock of the base station controller to each non-base station controlled by the base station controller; and base station controller uses frame information of the base station controlled by the base station controller.
  • base station controller uses frame information of the base station controlled by the base station controller. For the reference, respectively calculating a difference value of the frame information of each non-base station and the reference, and generating frame offset information of each non-base station according to the difference value of each non-base station; the base station controller generates the frame The frame offset information is sent to each non-base station separately.
  • the clock and frame information of all the base stations in the base station controller are synchronized, that is, the air interface resources of all the base stations in the base station controller are synchronized, so that the air interface resources of all the base stations under different base station controllers in the same network are synchronized.
  • the GPS core card installed in the base station is installed, and the GPS is installed in each base station, the base station and the base station controller in the prior art, and the invention can reduce the cost of the communication system.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Synchronisation In Digital Transmission Systems (AREA)

Abstract

L'invention concerne, dans l'un de ses modes de réalisation, un procédé de synchronisation d'interface radio comprenant les étapes suivantes : une unité de commande de station de base transmet des informations contenant l'horloge de l'unité de commande de station de base à chaque station de non-référence commandée par l'unité de commande de station de base ; l'unité de commande de station de base utilise les informations de trame d'une station de référence commandée par l'unité de commande de station de base en tant que référence afin de calculer respectivement la différence entre les informations de trame de chaque station de non-référence et la référence, et génère les informations de décalage de trame pour chaque station de non-référence conformément à la différence de chaque station de non-référence ; et l'unité de commande de station de base transmet les informations de décalage de trame générées à chaque station de non-référence. L'invention concerne également un dispositif et un système de synchronisation d'interface radio. Le mode de réalisation de la présente invention assure la synchronisation de l'interface radio tout en réduisant le coût du système de communication.
PCT/CN2012/087202 2012-12-21 2012-12-21 Procédé, dispositif et système de synchronisation d'interface radio Ceased WO2014094311A1 (fr)

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CN103858371B (zh) * 2013-11-11 2017-04-26 华为技术有限公司 一种多扇区同步发送信令的方法及装置
CN104812050B (zh) 2014-01-24 2019-11-15 中兴通讯股份有限公司 一种实现空口同步的方法、小区和系统
CN104202812A (zh) * 2014-08-14 2014-12-10 杭州绿宇通信技术有限公司 一种适用于精确定位系统的高精度时间同步的方法
US10772055B2 (en) * 2015-04-08 2020-09-08 Alcatel Lucent Base station synchronization
CN111246561B (zh) * 2018-11-28 2021-04-27 大唐移动通信设备有限公司 一种同步方法和装置
CN113765839B (zh) * 2020-06-03 2022-07-29 华为技术有限公司 空口时间同步方法及设备

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