CN109526061B - Channel bandwidth lossless switching method based on satellite communication - Google Patents
Channel bandwidth lossless switching method based on satellite communication Download PDFInfo
- Publication number
- CN109526061B CN109526061B CN201811623215.3A CN201811623215A CN109526061B CN 109526061 B CN109526061 B CN 109526061B CN 201811623215 A CN201811623215 A CN 201811623215A CN 109526061 B CN109526061 B CN 109526061B
- Authority
- CN
- China
- Prior art keywords
- channel
- receiving
- equipment
- master station
- parameters
- 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.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Quality & Reliability (AREA)
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- Aviation & Aerospace Engineering (AREA)
- General Physics & Mathematics (AREA)
- Radio Relay Systems (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
A channel bandwidth lossless switching method based on satellite communication comprises the following steps; the NCS issues the receiving/transmitting channel parameters to be switched to the master station; the master station issues the sending channel parameters to the channel sending equipment, and simultaneously issues the receiving channel parameters to the channel receiving equipment; the master station receives the response message of the channel sending equipment within a period of time and executes the next step, otherwise, the master station returns to the previous step; the master station transmits the receiving channel parameters to the channel receiving equipment; the master station receives the response message of the channel receiving equipment within a period of time and executes the next step, otherwise, the master station returns to the previous step; the master station transmits a channel switching instruction to the transmitting equipment; the channel sending equipment sends M frames of empty data by using the original channel parameters, the frame header carries a channel switching instruction, the frame header is switched to new channel parameters, then N frames of empty data frames are sent, and then real service data are sent; when the channel receiving equipment receives the frame carrying the channel switching instruction by the frame header, the channel receiving equipment is immediately switched to new channel receiving parameters, adjusts the receiving module of the channel receiving equipment and establishes a new communication link.
Description
Technical Field
The invention relates to the technical field of satellite communication, in particular to a channel bandwidth lossless switching method of satellite communication equipment.
Background
Previously, because satellite bandwidth resources are limited and the cost is particularly expensive, a general satellite communication device may use bandwidth allocation on demand to save the satellite bandwidth resources, and in the process of implementing the satellite bandwidth allocation on demand, bandwidth switching may be involved. The method widely applied in the industry is to disconnect the service first, then switch the bandwidth, and resend the service data after the bandwidth switching is completed. However, in most application scenarios, it is necessary to switch the channel bandwidth when the user sends the service. Therefore, the service is very important without loss in the bandwidth switching process, the experience of users is improved, and the utilization rate of satellite resources is improved.
Disclosure of Invention
The invention provides a channel bandwidth lossless switching method based on satellite communication, which solves the technical problem that user service is interrupted when channel bandwidth is switched.
The invention is realized by the following technical scheme:
the networking mode of the scheme is as follows: the system is composed of an NCS (channel resource manager), a main station and a plurality of end stations. The NCS is responsible for channel resource management; the main station is responsible for receiving the message of the NCS and controlling each end station through a physical channel; the end station receives the control message of the master station and simultaneously receives the channel information from the master station or other end stations.
The method comprises the following implementation steps:
step 1: initializing a system;
and 2, step: the NCS waits for whether channel parameters need to be switched or not;
and 3, step 3: the NCS issues receiving/sending channel parameters needing to be switched to the main station;
and 4, step 4: the master station transmits the transmission channel parameters to the channel transmission equipment;
and 5: the master station receives the response message of the channel sending equipment within a period of time and executes the step 6, otherwise, executes the step 4;
step 6: the master station transmits the receiving channel parameters to the channel receiving equipment;
and 7: the master station receives the response message of the channel receiving equipment within a period of time and executes the step 8, otherwise, executes the step 6;
and step 8: the master station transmits a channel switching instruction to the channel transmitting equipment;
and step 9: the channel sending equipment sends M frames of empty data by using the original channel parameters, the frame header carries a channel switching instruction, then the frame header is switched to new channel parameters, then N frames of empty data frames are sent, then the real service data is sent, and M and N change according to the bandwidth;
step 10: when the channel receiving equipment receives the frame of which the frame header carries the channel switching instruction, the channel receiving equipment is immediately switched to new receiving channel parameters, adjusts the receiving module of the channel receiving equipment, establishes a new communication link and requires the channel receiving equipment to finish adjustment within N-1 frame time.
The invention has the beneficial effects that:
1) The invention can rapidly complete bandwidth switching;
2) The invention realizes the lossless user service when the bandwidth is switched.
Drawings
FIG. 1 is a schematic diagram of the architecture of a lossless BOD method based on satellite communication according to the present invention.
FIG. 2 is a diagram of the operational steps of a lossless BOD method based on satellite communication according to the present invention.
Detailed Description
In order to make the method and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and examples.
Step 1: and (4) networking initialization, wherein initial signaling networking parameters are manually established.
A user manually sets a main station transmission channel parameter A, and simultaneously, manually sets a receiving channel 1 (the end station has a plurality of receiving channels) parameter A of an end station 1 and an end station 2 (namely, the main station transmission channel parameter is ensured to be consistent with the end station receiving channel parameter);
step 2: a communication link is established from end station 1 to end station 2.
The NCS transmits channel link parameters B from the end station 1 to the end station 2 to the two end stations through the main station, and the sending parameters of the end station 1 and the receiving parameters of the end station 2 are set as B;
and step 3: a communication link is established between end station 1 and end station 2 to the master station.
Configuring a receiving channel 1 of a main station as a sending channel parameter B of an end station 1, and configuring a receiving channel 2 as a sending channel parameter C of an end station 2;
and 4, step 4: and waiting for a user bandwidth switching instruction.
When a user needs to increase or decrease the bandwidth in the using process, the user applies for bandwidth switching to the NCS (the users of the end station 1 and the end station 2 can both initiate applications);
and 5: the NCS sends a channel parameter B' to be switched from the end station 1 to the end station 2 to the standby parameter tables of the receiving channel 1 of the two end stations and the main station through the main station, and confirms that the feedback information of the end station 1, the end station 2 and the main station is obtained;
step 6: the NCS sends a channel parameter switching instruction to the end station 1 through the main station;
and 7: after receiving the channel parameter switching command, the end station 1 starts to execute the switching action. Stopping sending user data (caching user data), still using the channel parameter B, adding a switching channel parameter flag bit at the head of a physical frame, and sending an M frame empty frame; stopping sending the physical frame, switching the channel parameter to be B', and then sending N frames of empty data frames; finally, switching to real user data;
and step 8: when receiving the physical frame carrying the channel parameter switching mark sent by the end station 1, the receiving channels 1 of the end station 2 and the master station immediately switch to the channel parameter B', then adjust the receiving link modules of themselves, and reestablish the communication link.
As can be seen from the above table: in the bandwidth switching process, user service data is not lost, only the empty frame of the M + N frame is sent, the link is reestablished, the time is extremely short (in millisecond level), the human senses cannot be identified, and the service is basically lossless.
Claims (2)
1. A channel bandwidth lossless switching method based on satellite communication is characterized by comprising the following steps:
s1: the main station receives receiving/sending channel parameters which are issued by the NCS and need to be switched; the NCS transmits the receiving/transmitting channel parameters needing to be switched to the main station according to the switching instruction of the channel receiving equipment or the channel transmitting equipment;
s2: the master station transmits the transmission channel parameters to the channel transmission equipment;
s3: the master station receives the response message of the channel sending equipment within a period of time and executes the step S4, otherwise, executes the step S2;
s4: the master station transmits the receiving channel parameters to the channel receiving equipment;
s5: the master station receives the response message of the channel receiving equipment within a period of time and executes S6, otherwise, executes S4;
s6: the master station transmits a channel switching instruction to the channel sending equipment;
s7: the channel sending equipment sends M frames of empty data by using the original channel parameters, the frame header carries a channel switching instruction, then the channel switching instruction is switched into new channel parameters, then N frames of empty data are sent, and then real service data are sent;
s8: when the channel receiving equipment receives the frame of which the frame header carries the channel switching instruction, the channel receiving equipment is immediately switched to new channel receiving parameters, adjusts the receiving module of the channel receiving equipment, completes the adjustment in the N-1 frame time, and establishes a new communication link.
2. The method of claim 1, wherein M and N vary according to bandwidth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623215.3A CN109526061B (en) | 2018-12-28 | 2018-12-28 | Channel bandwidth lossless switching method based on satellite communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811623215.3A CN109526061B (en) | 2018-12-28 | 2018-12-28 | Channel bandwidth lossless switching method based on satellite communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109526061A CN109526061A (en) | 2019-03-26 |
| CN109526061B true CN109526061B (en) | 2023-04-07 |
Family
ID=65797113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811623215.3A Active CN109526061B (en) | 2018-12-28 | 2018-12-28 | Channel bandwidth lossless switching method based on satellite communication |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109526061B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6512920B1 (en) * | 1999-05-06 | 2003-01-28 | Nec Corporation | Satellite communications system and handover processing method |
| CN101001101A (en) * | 2007-01-10 | 2007-07-18 | 北京航空航天大学 | Satellite ground link switch-over method of mobile satellite network |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2365677A (en) * | 2000-02-29 | 2002-02-20 | Ico Services Ltd | Satellite communications with satellite routing according to channels assignment |
| CN100484076C (en) * | 2007-07-06 | 2009-04-29 | 清华大学 | Network access and control method based on satellite multicast and backhaul channel sharing |
| US10021599B2 (en) * | 2011-09-20 | 2018-07-10 | Qualcomm Incorporated | Channel and bandwidth switch procedures for wireless networks |
| RU2598537C1 (en) * | 2012-12-07 | 2016-09-27 | Хуавэй Текнолоджиз Ко., Лтд. | Method and system for adaptive switching of channel bandwidth |
| CN105207872A (en) * | 2014-06-04 | 2015-12-30 | 深圳市德领电子科技有限公司 | Information link generation method and system |
| CN105281821A (en) * | 2014-06-04 | 2016-01-27 | 深圳市德领电子科技有限公司 | Satellite channel intelligent switching method and system |
| US9871577B2 (en) * | 2015-11-30 | 2018-01-16 | Google Llc | Global communication network |
-
2018
- 2018-12-28 CN CN201811623215.3A patent/CN109526061B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6512920B1 (en) * | 1999-05-06 | 2003-01-28 | Nec Corporation | Satellite communications system and handover processing method |
| CN101001101A (en) * | 2007-01-10 | 2007-07-18 | 北京航空航天大学 | Satellite ground link switch-over method of mobile satellite network |
Non-Patent Citations (2)
| Title |
|---|
| 杜宇玲 ; .基于卫星的移动基站地面链路自动备份系统.邮电设计技术.2013,(07),全文. * |
| 肖重庆 ; .国内外TDMA卫星通信发展动态.计算机与网络.1993,(Z1),全文. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109526061A (en) | 2019-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20230027169A1 (en) | Configuration for duplication transmission and duplication transmission method and device | |
| US20230180350A1 (en) | Mode configuration method and apparatus, and device and storage medium | |
| CN1864417B (en) | Resource negotiation in wireless communications networks and methods | |
| WO2019228428A1 (en) | Method and device for adjusting bandwidth of transmission channel in flexible ethernet | |
| MX2010003248A (en) | Omitting ue id on an enhanced rach process. | |
| AU3524095A (en) | Data transmission method in a tdma mobile communication system | |
| CN102340823A (en) | Same-phase IQ (In-phase Quadrate) data compression method and device | |
| CN110073613B (en) | Data communication system, optical line terminal and baseband unit | |
| CN101309516A (en) | Method of managing queuing operation for a wireless communications system and related apparatus | |
| CN109495129B (en) | Spread spectrum multiple lossless switching method based on satellite communication | |
| CN110061820B (en) | Address sending method and device, storage medium and electronic device | |
| EP4255103A3 (en) | Device and method for service subscription via e2 interface in radio access network communication system | |
| CN108024379B (en) | A kind of cross-carrier dispatching method and device | |
| CN104734823A (en) | Communication system, communication terminal, transfer tables and handshake communication method | |
| CN104159267A (en) | Multiple-network-integrated cloud architecture mobile self-networking system and implement method thereof | |
| US10869222B2 (en) | Data frame transmission method and apparatus for virtual elastic CPRI interface | |
| CN109526061B (en) | Channel bandwidth lossless switching method based on satellite communication | |
| EP2779783A1 (en) | Method, device and system for acquiring feedback delay | |
| CN103037376B (en) | The Adaptive Time Division Duplex system and method dynamically distributed with wireless communication system | |
| CN105471563B (en) | Dynamically distribute pulling method and communication equipment in the data of up channel | |
| US10638504B2 (en) | Data pull-up method in which uplink channel is dynamically allocated and communication device | |
| CN103379551A (en) | Method and equipment for allocating high-level data link control link bandwidths | |
| CN104052569B (en) | Method and device for switching MCS | |
| CN112087678B (en) | Bandwidth allocation and bandwidth checking method and device | |
| CN101990092B (en) | Method, device and system for controlling errors in wireless video communication system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |