CN113596936A - Method, device, equipment and medium for switching beams in satellite communication system - Google Patents
Method, device, equipment and medium for switching beams in satellite communication system Download PDFInfo
- Publication number
- CN113596936A CN113596936A CN202110702244.4A CN202110702244A CN113596936A CN 113596936 A CN113596936 A CN 113596936A CN 202110702244 A CN202110702244 A CN 202110702244A CN 113596936 A CN113596936 A CN 113596936A
- Authority
- CN
- China
- Prior art keywords
- satellite
- terminal
- beam switching
- beams
- switching command
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000004891 communication Methods 0.000 title claims abstract description 23
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000013475 authorization Methods 0.000 claims abstract description 8
- 238000004590 computer program Methods 0.000 claims description 9
- 239000000203 mixture Substances 0.000 claims 1
- 239000002994 raw material Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 abstract description 7
- 238000010586 diagram Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 2
- 238000010295 mobile communication Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/06—Reselecting a communication resource in the serving access point
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/06—Airborne or Satellite Networks
-
- 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
Abstract
The invention discloses a method, a device, equipment and a medium for switching beams in a satellite communication system, belonging to the technical field of satellite communication, wherein a satellite carries out data transmission in a hopping mode in a plurality of wave positions covered by the satellite through a plurality of service beams with different frequency bands, and the method comprises the following steps: for a terminal needing to switch beams, the satellite sends a beam switching command to the terminal through uplink scheduling authorization on a source beam, so that the terminal sends an uplink data packet to the satellite through a target beam according to information carried by the beam switching command after receiving the beam switching command, and the switching of the satellite beams is completed. According to the method, the satellite does not need to configure the reference signal required by the beam switching for the terminal, the terminal does not report the measurement information in the beam switching process, and the satellite directly initiates and controls the beam switching, so that the time delay is reduced, and the data transmission efficiency is improved.
Description
Technical Field
The present invention relates to the field of satellite communications technologies, and in particular, to a method, an apparatus, a device, and a medium for switching beams in a satellite communications system.
Background
Compared with a ground mobile communication network, the satellite communication system can realize wide area and even global coverage, and provide indiscriminate communication service for global users. Meanwhile, the terrestrial fifth-generation mobile communication (5G) system has a perfect industrial chain, a huge user group, a flexible and efficient application service mode and the like. The satellite communication and the 5G are mutually fused, make up for the deficiencies, and jointly form a global seamless-coverage integrated communication network of sea, land, air and sky, so that the requirements of various ubiquitous services of users are met, and the integrated communication network is an important direction for future communication development.
While the original purpose of the 5G system is to apply to terrestrial communication, in order to increase the data transmission rate, the base station uses multiple beams to provide services for terminals at different positions in the current coverage cell. For a 5G system, the same frequency band is used by the same cell, so these beams all use the frequency band of the current cell. When multi-beam management and switching are carried out, a base station firstly configures a reference signal for each beam according to the number of the beams, a terminal carries out measurement and evaluation on the reference signals, then the measurement result is fed back to the base station, and the base station selects the beam most suitable for the terminal according to the measurement result to carry out data transmission service on the terminal.
In low-earth-orbit broadband satellite communication, since the coverage area of a single satellite is usually large, in order to improve the communication performance, the satellite divides the coverage area into a plurality of wave positions, usually hundreds of wave positions, and the satellite uses a plurality of service beams with different frequency bands to perform service in the hundreds of wave positions in a beam hopping manner. For the same terminal, the satellite beam serving it can be switched according to the traffic needs. The geographical position of the terminal and its wave position information are known to the satellite, but in the prior art, the wave beam switching of the satellite is in the traditional 5G wave beam switching mode, which introduces unnecessary reference signal transmission, measurement evaluation and measurement report reporting, not only increases extra signaling overhead and occupies data transmission bandwidth, but also increases wave beam switching delay.
Disclosure of Invention
The invention aims to provide a method, a device, equipment and a medium for switching beams in a satellite communication system, aiming at the problems of time delay and data transmission bandwidth occupation in beam switching of a satellite in the prior art.
In order to achieve the purpose, the technical scheme of the invention is as follows:
in one aspect, the present invention provides a method for switching beams in a satellite communication system, where a satellite performs data transmission in a hopping manner in a plurality of wave positions covered by the satellite through a plurality of service beams with different frequency bands, and the method includes: for a terminal needing to switch beams, the satellite sends a beam switching command to the terminal through uplink scheduling authorization on a source beam, so that after receiving the beam switching command, the terminal sends an uplink data packet to the satellite through a target beam according to information carried by the beam switching command, and switching of satellite beams is completed.
Preferably, the beam switching command includes target beam information, target location information, and target time information.
Preferably, the step of determining whether the terminal needs to switch the beam includes: and judging whether the data transmission rate of the terminal on the source beam is lower than a preset rate threshold value, if so, judging that the beam needs to be switched, otherwise, not, switching is needed.
Preferably, the satellite transmits the beam switching command to the terminal through an uplink scheduling grant on a source beam in a self-control manner.
Preferably, the satellite transmits the beam switching command to the terminal through an uplink scheduling grant on a source beam in a controlled manner.
Further, the gateway station judges whether the terminal needs to switch the beam; for a terminal needing to switch beams, the gateway station sends a beam switching instruction to the satellite, wherein the beam switching instruction comprises identification information and position information of the terminal; and after receiving the beam switching instruction, the satellite sends the beam switching command to the terminal according to the information carried by the beam switching instruction.
In another aspect, the present invention also provides a satellite beam switching apparatus in a satellite communication system, including,
the judging module is used for judging whether the terminal needs to perform beam switching or not;
the command generation module is used for generating a beam switching command, and the beam switching command comprises target beam information, target position information and target time information, so that the terminal can send an uplink data packet to the satellite through a target beam according to information carried by the beam switching command after receiving the beam switching command, and switching of satellite beams is completed;
and the command sending module is used for sending the beam switching command to the terminal through uplink scheduling authorization on a source beam.
Further, the system further includes an indication generating module, where the indication generating module is configured to generate a beam switching indication, where the beam switching indication includes identification information and location information of the terminal, so that the satellite sends the beam switching command to the terminal according to information carried by the beam switching indication after receiving the beam switching indication sent by the gateway station.
In yet another aspect, the present invention also provides an electronic device comprising a memory storing executable program code and a processor coupled to the memory; wherein the processor calls the executable program code stored in the memory to perform the method as described above.
In yet another aspect, the present invention also provides a computer-readable storage medium storing a computer program which, when executed by a processor, performs the method as described above.
By adopting the technical scheme, the satellite directly sends the beam switching command to the terminal through the uplink scheduling authorization on the source beam, so that the terminal sends the uplink data packet to the satellite through the target beam according to the information carried by the beam switching command after receiving the beam switching command, thereby completing the switching of the satellite beam, the satellite does not need to configure a reference signal required by the beam switching for the terminal, the terminal does not report the measurement information in the beam switching process, but the satellite directly initiates and controls the beam switching, thereby reducing the time delay and improving the data transmission efficiency.
Drawings
FIG. 1 is a schematic view of a use scenario of the method of the present invention;
FIG. 2 is a flowchart of a method according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third apparatus according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a fourth apparatus according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fifth apparatus according to an embodiment of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on structures shown in the drawings, and are only used for convenience in describing the present invention, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In the technical scheme, the terms "first" and "second" are only used for referring to the same or similar structures or corresponding structures with similar functions, and are not used for ranking the importance of the structures, or comparing the sizes or other meanings.
In addition, unless expressly stated or limited otherwise, the terms "mounted" and "connected" are to be construed broadly, e.g., the connection may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two structures can be directly connected or indirectly connected through an intermediate medium, and the two structures can be communicated with each other. To those skilled in the art, the specific meanings of the above terms in the present invention can be understood in light of the present general concepts, in connection with the specific context of the scheme.
Example one
A method for switching beams in a satellite communication system, as shown in fig. 1, is a schematic diagram of a satellite communication system, wherein a satellite performs data transmission in a hopping manner in a plurality of wave positions covered by the satellite through a plurality of service beams with different frequency bands, and the method of this embodiment is executed on the satellite and is executed by a local processor or a server mounted on the satellite. As shown in fig. 2, the method includes step S1 and step S2.
In step S1, a terminal needing to switch beams is determined.
The step of judging whether the terminal needs to switch the beam comprises the following steps: and judging whether the data transmission rate of the terminal on the source beam is lower than a preset rate threshold value, if so, judging that the beam needs to be switched, otherwise, not, switching.
Step S2, for a terminal that needs to switch beams, the satellite sends a beam switching command to the terminal through uplink scheduling grant on a source beam, so that after receiving the beam switching command, the terminal sends an uplink data packet to the satellite through a target beam according to information carried by the beam switching command, thereby completing switching of satellite beams.
The beam switching command comprises target beam information, target position information and target time information, the target beam information comprises a frequency band of a target beam to be switched by the terminal, the target time information comprises time for the terminal to send an uplink data packet to the satellite, and the target position information comprises the position of the satellite relative to the terminal. It can be understood that the geographic location of the terminal and the wave position information thereof are known to the satellite, so that according to the ephemeris of the satellite operation, after the time point of uplink data packet transmission by the terminal is appointed, the position of the satellite relative to the terminal at the time point can be calculated, so that the terminal can transmit the uplink data packet to the target location on the target beam and the target time, after the satellite receives the uplink data packet transmitted by the terminal on the target beam, the switching of the satellite beam is completed, and the subsequent uplink data and downlink data of the terminal are transmitted by using the target beam.
In this embodiment, after the satellite sends the beam switching command to the terminal through the uplink scheduling grant, the terminal sends uplink data in the subsequent time slot only after a period of time interval, so that the terminal can perform beam switching operation by using the period of time interval.
Example two
The difference from the first embodiment is that: in the first embodiment, the satellite transmits the beam switching command to the terminal through the uplink scheduling grant on the source beam in a self-control manner, and in the present embodiment, the satellite transmits the beam switching command to the terminal through the uplink scheduling grant on the source beam in a controlled manner.
Namely, the gateway station judges whether the terminal needs to switch the wave beam; for a terminal needing to switch beams, a gateway station sends a beam switching instruction to a satellite; and after receiving the beam switching instruction, the satellite sends the beam switching command to the terminal needing to switch the beam according to the information carried by the beam switching instruction.
That is, in the present embodiment, the method is performed in part by each of the gateway station and the satellite.
The beam switching instruction includes identification information and location information of a terminal that needs to switch beams. It can be understood that, in a manner that the gateway station acquires the terminal-related information and performs the determination process in step S1, the data processing amount of the satellite can be effectively reduced, and thus the requirement for the satellite-borne device is reduced, relative to the satellite acquiring the position information of the terminal, the wave position information, and the transmission rate on the source beam in real time.
EXAMPLE III
A satellite beam switching device in a satellite communication system, which is mounted on a satellite according to a first embodiment, as shown in fig. 3, comprises,
the judging module is used for judging whether the terminal needs to perform beam switching;
the command generation module is used for generating a beam switching command, and the beam switching command comprises target beam information, target position information and target time information, so that the terminal can conveniently send an uplink data packet to the satellite through a target beam according to information carried by the beam switching command after receiving the beam switching command, and the satellite beam switching is finished;
and the command sending module is used for sending a beam switching command to the terminal through uplink scheduling authorization on the source beam.
Example four
The difference from the third embodiment is that: as shown in fig. 4, the satellite further includes an indication generating module, which is mounted on the gateway station together with the judging module, where the indication generating module is configured to generate a beam switching indication, and the beam switching indication includes identification information and location information of the terminal, so that the satellite transmits a beam switching command to the terminal according to information carried by the beam switching indication after receiving the beam switching indication transmitted by the gateway station.
EXAMPLE five
An electronic device, as shown in fig. 5, includes a memory storing executable program code and a processor coupled to the memory; the processor calls the executable program code stored in the memory to execute the method in the first embodiment or the second embodiment.
EXAMPLE six
A computer-readable storage medium, in which a computer program is stored, which, when being executed by a processor, performs the method of the first or second embodiment.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, and the scope of protection is still within the scope of the invention.
Claims (10)
1. A method for switching beams in a satellite communication system, wherein the satellite performs data transmission in a hopping manner in a plurality of wave positions covered by the satellite through a plurality of service beams with different frequency bands, the method comprising: the method comprises the following steps: for a terminal needing to switch beams, the satellite sends a beam switching command to the terminal through uplink scheduling authorization on a source beam, so that after receiving the beam switching command, the terminal sends an uplink data packet to the satellite through a target beam according to information carried by the beam switching command, and switching of satellite beams is completed.
2. The method of claim 1, wherein: the beam switching command includes target beam information, target location information, and target time information.
3. The method of claim 1, wherein: the step of judging whether the terminal needs to switch the beam comprises the following steps: and judging whether the data transmission rate of the terminal on the source beam is lower than a preset rate threshold value, if so, judging that the beam needs to be switched, otherwise, not, switching is needed.
4. The method of claim 1, wherein: and the satellite transmits a beam switching command to the terminal through uplink scheduling authorization on a source beam in a self-control mode.
5. The method of claim 1, wherein: the satellite transmits beam switching commands to the terminal via an uplink scheduling grant on a source beam in a controlled manner.
6. The method of claim 5, wherein: judging whether the terminal needs to switch the wave beam or not by the gateway station; for a terminal needing to switch beams, the gateway station sends a beam switching instruction to the satellite, wherein the beam switching instruction comprises identification information and position information of the terminal; and after receiving the beam switching instruction, the satellite sends the beam switching command to the terminal according to the information carried by the beam switching instruction.
7. A device for switching satellite beams in a satellite communication system, comprising: comprises the steps of (a) preparing a mixture of a plurality of raw materials,
the judging module is used for judging whether the terminal needs to perform beam switching or not;
the command generation module is used for generating a beam switching command, and the beam switching command comprises target beam information, target position information and target time information, so that the terminal can send an uplink data packet to the satellite through a target beam according to information carried by the beam switching command after receiving the beam switching command, and switching of satellite beams is completed;
and the command sending module is used for sending the beam switching command to the terminal through uplink scheduling authorization on a source beam.
8. The apparatus of claim 7, wherein: the satellite terminal further comprises an indication generating module, wherein the indication generating module is used for generating a beam switching indication, and the beam switching indication comprises identification information and position information of the terminal, so that the satellite can send the beam switching command to the terminal according to information carried by the beam switching indication after receiving the beam switching indication.
9. An electronic device, characterized in that: comprising a memory storing executable program code and a processor coupled to the memory; wherein the processor calls executable program code stored in the memory to perform the method of any one of claims 1-5.
10. A computer-readable storage medium storing a computer program, characterized in that: the computer program, when executed by a processor, performs the method of any one of claims 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110702244.4A CN113596936B (en) | 2021-06-21 | 2021-06-21 | Method, device, equipment and medium for switching wave beams in satellite communication system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110702244.4A CN113596936B (en) | 2021-06-21 | 2021-06-21 | Method, device, equipment and medium for switching wave beams in satellite communication system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113596936A true CN113596936A (en) | 2021-11-02 |
| CN113596936B CN113596936B (en) | 2024-02-20 |
Family
ID=78244573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110702244.4A Active CN113596936B (en) | 2021-06-21 | 2021-06-21 | Method, device, equipment and medium for switching wave beams in satellite communication system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113596936B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113873670A (en) * | 2021-12-03 | 2021-12-31 | 中国星网网络系统研究院有限公司 | Random access method, system, device, equipment and medium |
| CN115173934A (en) * | 2022-09-07 | 2022-10-11 | 银河航天(北京)网络技术有限公司 | Beam switching method and system |
| WO2023104036A1 (en) * | 2021-12-06 | 2023-06-15 | 大唐移动通信设备有限公司 | Method and apparatus for acquiring beam information, and device and storage medium |
| CN116488704A (en) * | 2023-03-22 | 2023-07-25 | 广州爱浦路网络技术有限公司 | Beam switching method, system and storage medium for low orbit satellite |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107948987A (en) * | 2016-10-13 | 2018-04-20 | 华为技术有限公司 | Communication means, apparatus and system |
| CN108540177A (en) * | 2017-03-03 | 2018-09-14 | 中国移动通信有限公司研究院 | A kind of method and apparatus of switching-beam pair |
| CN111867136A (en) * | 2019-04-30 | 2020-10-30 | 大唐移动通信设备有限公司 | Beam switching method and device |
| CN112054823A (en) * | 2020-09-10 | 2020-12-08 | 重庆邮电大学 | Low-earth-orbit satellite communication switching method |
-
2021
- 2021-06-21 CN CN202110702244.4A patent/CN113596936B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107948987A (en) * | 2016-10-13 | 2018-04-20 | 华为技术有限公司 | Communication means, apparatus and system |
| CN108540177A (en) * | 2017-03-03 | 2018-09-14 | 中国移动通信有限公司研究院 | A kind of method and apparatus of switching-beam pair |
| CN111867136A (en) * | 2019-04-30 | 2020-10-30 | 大唐移动通信设备有限公司 | Beam switching method and device |
| WO2020220871A1 (en) * | 2019-04-30 | 2020-11-05 | 大唐移动通信设备有限公司 | Beam switching method and apparatus |
| CN112054823A (en) * | 2020-09-10 | 2020-12-08 | 重庆邮电大学 | Low-earth-orbit satellite communication switching method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113873670A (en) * | 2021-12-03 | 2021-12-31 | 中国星网网络系统研究院有限公司 | Random access method, system, device, equipment and medium |
| CN113873670B (en) * | 2021-12-03 | 2022-03-18 | 中国星网网络系统研究院有限公司 | Random access method, system, device, equipment and medium |
| WO2023104036A1 (en) * | 2021-12-06 | 2023-06-15 | 大唐移动通信设备有限公司 | Method and apparatus for acquiring beam information, and device and storage medium |
| CN115173934A (en) * | 2022-09-07 | 2022-10-11 | 银河航天(北京)网络技术有限公司 | Beam switching method and system |
| CN115173934B (en) * | 2022-09-07 | 2022-11-29 | 银河航天(北京)网络技术有限公司 | Beam switching method and system |
| CN116488704A (en) * | 2023-03-22 | 2023-07-25 | 广州爱浦路网络技术有限公司 | Beam switching method, system and storage medium for low orbit satellite |
| CN116488704B (en) * | 2023-03-22 | 2023-12-15 | 广州爱浦路网络技术有限公司 | Beam switching method, system and storage medium for low orbit satellite |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113596936B (en) | 2024-02-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113596936B (en) | Method, device, equipment and medium for switching wave beams in satellite communication system | |
| JP4421770B2 (en) | Method and system for determining the position of a mobile radio terminal | |
| KR100742584B1 (en) | A primary station utilizing beam forming and sweeping for common and dedicated channels | |
| EP1518331B1 (en) | Primary station for efficiently covering a sectorized cell utilizing beam forming and sweeping | |
| JP2009284495A (en) | Method and system of deciding position of mobile radio terminal | |
| AU2022201231B2 (en) | Data transmission and management for positioning mobile devices | |
| CN112910541A (en) | Satellite user side wave beam design method applied to satellite mobile communication system | |
| CN113079546B (en) | Method and device for switching between low-orbit satellites | |
| CN113596945B (en) | Satellite switching method, system, equipment and medium in satellite communication system | |
| CN112887004A (en) | Communication method and device | |
| CN110140303A (en) | Enhanced emission point (TRP) wave beam grouping based on UE wave beam | |
| CN105376723A (en) | Method of realizing wireless link processing, base station and terminal | |
| CN110312199B (en) | Ground-air interconnection method and device | |
| CN113615245A (en) | Switching control method, device, equipment and storage medium | |
| CN113055062A (en) | Air route communication method, system, computer readable storage medium and electronic equipment | |
| CN112821939A (en) | Position management method in low-orbit satellite communication system | |
| US6862447B1 (en) | Method of making downlink operational measurements in a wireless communication system | |
| US20130152150A1 (en) | Method, transmission center, base station and system for sending broadcast television signals | |
| WO2010092011A1 (en) | Telecommunication network | |
| CN116074892A (en) | Position information reporting method, receiving method, terminal, satellite and storage medium | |
| CN112020110B (en) | Network access method and device of terminal equipment | |
| WO2021012118A1 (en) | Communication method, apparatus, device and system, and storage medium | |
| US11528074B2 (en) | Repeater system for LPWAN and method for controlling same | |
| WO2022135051A1 (en) | Cross-carrier data transmission method and apparatus, terminal, and network device | |
| CN112839304B (en) | Communication method and device |
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 | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Chen Qinghua Inventor before: Xie Anliang |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |