Access method and device of hopping beam, electronic equipment and nonvolatile storage medium
By receiving the location information of user equipment from network-side devices and adjusting the direction of narrow beam signals, the problem of low user access efficiency in beam-hopping communication is solved, and more efficient utilization of satellite communication resources is achieved.
Patent Information
- Application Number
- CN202411204351.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-29
- Publication Date
- 2025-12-12
- Estimated Expiration
- 2044-08-29
AI Technical Summary
In beam-hopping communication, because the network-side equipment does not know the user's location, the user access efficiency is extremely low, and sometimes the user cannot access the network for a long time.
The network-side equipment receives location information reported by user equipment from the wide-beam channel, adjusts the service beam direction of the narrow-beam signal, and provides access services based on the location information.
It improved user access efficiency, solved the problem of users being unable to access the network for extended periods, and enabled more flexible and efficient scheduling of satellite communication resources.
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Figure CN119183192B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of satellite communication, in particular, to a method and device for accessing a hopping beam, an electronic device and a non-transitory storage medium. BACKGROUND
[0002] Due to the high orbit height, a medium-high orbit satellite is far away from the earth, which results in large transmission loss and low downlink signal-to-noise ratio when used for communication. In particular, when used for low-frequency handheld terminal or direct communication application of a mobile phone, the transmission power and antenna gain of the terminal are limited, which results in a large fading of the uplink signal to the medium-high orbit satellite and extremely low signal-to-noise ratio, so that it is almost impossible to establish a communication link. In particular, for a narrow beam new radio-non-terrestrial network (NR-NTN) technology, the minimum uplink and downlink scheduling bandwidth of a UE is 2PRB, which needs a bandwidth of 360kHz calculated by 15kHz subcarrier, which further increases the difficulty of handheld terminal or direct high-orbit satellite communication of a mobile phone using the NR-NTN technology.
[0003] Currently, a high-orbit synchronous communication satellite generally uses a fixed multi-beam antenna, hundreds or thousands of beams cover the target area below the satellite to provide services for the area. This design makes each beam have high gain, but the power of the satellite is evenly distributed among multiple beams, while the distribution of users on the ground is not evenly distributed in the thousands of beams, especially in some disasters, only the area covered by a certain beam has a large number of access service requirements, while there are almost no users in other beams that need services, which greatly wastes the communication resources of the whole satellite. Therefore, the fixed multi-beam antenna design makes the satellite resources cannot be flexibly configured, which affects the communication throughput of the whole satellite.
[0004] Hopping beams are based on phased array antenna technology and use beam synthesis technology, which can flexibly adjust the pointing direction of the beam, can change over time, and can enhance the gain of a single beam. Through beam scheduling, the power and communication resources of the satellite can be more flexibly and effectively scheduled and utilized, which can improve the utilization rate of the system, but when users access, the network side device does not know the location of the users, which makes the efficiency of user access very low, and even causes the users to be unable to access for a long time.
[0005] At present, there is no effective solution to the above problems. SUMMARY
[0006] This application provides a beam-hopping access method, apparatus, electronic device, and non-volatile storage medium to at least solve the technical problem in related technologies where beam-hopping access methods result in extremely low user access efficiency, or even cause users to be unable to access the network for extended periods, because the network-side equipment does not know the user's location.
[0007] According to one aspect of the embodiments of this application, a beam-hopping access method is provided, comprising: a network-side device receiving location information reported by a user equipment from a wide beam channel, wherein the network-side device is configured with a wide beam signal and a narrow beam signal; the network-side device adjusting the direction of the service beam of the narrow beam signal according to the location information, wherein the adjusted service beam points to the user equipment; and the network-side device providing access services to the user equipment based on the service beam of the narrow beam signal.
[0008] In some embodiments of this application, when the network-side device configures a wide-beam signal, it defines indication information in the wide-beam network corresponding to the wide-beam signal. The indication information is used to indicate whether the wide-beam network is accessed by an independent wide-beam network or whether the wide-beam network guides the narrow-beam network corresponding to the narrow-beam signal to access the wide-beam network.
[0009] In some embodiments of this application, indication information is defined in the wide-beam network corresponding to the wide-beam signal, including: defining a first parameter in the main information block information to represent the indication information, wherein when the first parameter is 0 or null, it indicates that the wide-beam network is used as an independent wide-beam network, and when the first parameter is 1, it indicates that the wide-beam network is used to guide the narrow-beam network corresponding to the narrow-beam signal to access; or defining a second parameter in the system message block information to represent the indication information, wherein when there is no second parameter, it indicates that the wide-beam network is used as an independent wide-beam network, and when the second parameter is 1, it indicates that the wide-beam network is used to guide the narrow-beam network corresponding to the narrow-beam signal to access; or defining a third parameter in the radio resource control signaling to represent the indication information, wherein when the third parameter is 1, it indicates that the wide-beam network is used to guide the narrow-beam network corresponding to the narrow-beam signal to access.
[0010] In some embodiments of this application, the method further includes: after the network-side device directs the service beam of the available narrow beam signal to the user equipment, it updates the beam scheduling strategy.
[0011] According to another aspect of the embodiments of this application, a beam-hopping access method is also provided, comprising: a user equipment on the terminal side searching for a narrow beam signal and determining whether the user equipment is within the service beam of the narrow beam signal; when the user equipment is not within the service beam of the narrow beam signal, searching for a wide beam signal and reporting location information to the network-side device through the wide beam channel of the wide beam signal; the user equipment searching for a narrow beam signal that the network-side device points to based on the location information, and accessing the network equipment within the service beam of the narrow beam signal.
[0012] In some embodiments of the present application, the method further comprises: the user equipment sending a random access preamble and the location information to the network side device through the wide beam channel of the wide beam signal; the user equipment receiving a random access response message, wherein the random access response message is used to indicate whether the network side device receives the location information; or the user equipment waiting for a preset round trip time and searching for the narrow beam signal of the network side device pointing to the user equipment based on the location information.
[0013] In some embodiments of the present application, the method further comprises: after the user equipment receives the random access response message, the user equipment sending the location information to the network side device through a first message, wherein the first message is a connection request message sent by the uplink resource allocated in the random access response message; the user equipment confirming whether the network side device receives the location information in a second message, wherein the second message is a connection establishment confirmation message returned by the network side device; or the user equipment waiting for a preset round trip time and searching for the narrow beam signal of the network side device pointing to the user equipment based on the location information.
[0014] In some embodiments of the present application, after the user equipment sends the location information to the network side device through the wide beam channel of the wide beam signal, the method further comprises: the user equipment confirming whether the network side device receives the location information in a radio resource control connection (RRC) message; or the user equipment starting a timer after sending the location information, and searching for the narrow beam signal of the network side device pointing to the user equipment based on the location information after the timer ends.
[0015] In some embodiments of the present application, the location information is indicated by: using the complete global navigation satellite system data of the user equipment to indicate the location information; or taking the quantization precision of the global navigation satellite system data of the user equipment as a basis, processing the location information according to a preset proportion of the diameter of the satellite beam projected on the ground, and sending the processed location information.
[0016] In some embodiments of the present application, the location information is indicated by: dividing equal size location areas on the earth surface according to a preset rule, and numbering the location areas to obtain a location index; the user equipment determining a target location area in which the user equipment is located according to a pre-prepared area division table and the global navigation satellite system data of the user equipment, and indicating the location information by the location index corresponding to the number of the target location area; or using the latitude and longitude information of the area where the user equipment is located to indicate the location information.
[0017] In some embodiments of the present application, when the user equipment is in the service beam of the narrow beam signal, the user equipment accesses in the service beam.
[0018] According to another aspect of the embodiments of the present application, a beam hopping access apparatus is further provided, comprising: a receiving module configured to receive, by a network side device, location information reported by user equipment from a wide beam channel, wherein the network side device is configured with a wide beam signal and a narrow beam signal; a user equipment adjusting module configured to adjust, by the network side device, a pointing direction of a service beam of the narrow beam signal according to the location information, wherein the adjusted service beam points to the user equipment; and an accessing module configured to provide, by the network side device, access service for the user equipment based on the service beam.
[0019] According to another aspect of the embodiments of the present application, a communication system is further provided, comprising: a network side device and a terminal side; the network side device is configured to receive location information reported by user equipment from a wide beam channel, wherein the network side device is configured with a wide beam signal and a narrow beam signal, and adjust a pointing direction of a service beam of the narrow beam signal according to the location information, wherein the adjusted service beam points to the user equipment, and provide access service for the user equipment based on the service beam of the narrow beam signal; the terminal side user equipment searches for the narrow beam signal, and judges whether the user equipment is in the service beam of the narrow beam signal; when the user equipment is not in the service beam of the narrow beam signal, the user equipment searches for the wide beam signal, and reports the location information to the network side device through a wide beam channel of the wide beam signal; the user equipment searches for the narrow beam signal of the network side device pointing to the user equipment based on the location information, and accesses in the service beam of the narrow beam signal.
[0020] According to another aspect of the embodiments of the present application, an electronic device is further provided, comprising: a memory and a processor, the processor is configured to run a program stored in the memory, wherein the program performs the above-mentioned beam hopping access method when running.
[0021] In the embodiments of the present application, the network side device receives location information reported by the user equipment from a wide beam channel, wherein the network side device is configured with a wide beam signal and a narrow beam signal; the network side device adjusts a pointing direction of a service beam of the narrow beam signal according to the location information, wherein the adjusted service beam points to the user equipment; and the network side device provides access service for the user equipment based on the service beam of the narrow beam signal. Through the location information reported from the wide beam channel, the network side device adjusts the pointing direction of the service beam of the narrow beam signal according to the location information, wherein the adjusted service beam points to the user equipment, thereby achieving the purpose of the network side device obtaining the location of the user, and further solving the technical problem that in the beam hopping access method in the related art, the network side device does not know the location of the user, which makes the access efficiency of the user extremely low, and even causes the user to be unable to access for a long time. BRIEF DESCRIPTION OF DRAWINGS
[0022] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
[0023] Figure 1 Fig. 1 is a hardware structure schematic diagram of a computer terminal according to an embodiment of the present application;
[0024] Figure 2 Fig. 2 is a flow schematic diagram of a hopping beam access method according to an embodiment of the present application;
[0025] Figure 3 Fig. 3 is a flow schematic diagram of another hopping beam access method according to an embodiment of the present application;
[0026] Figure 4 Fig. 4 is a network side flow schematic diagram of a hopping beam access method according to an embodiment of the present application;
[0027] Figure 5 Fig. 5 is a terminal side flow schematic diagram of a hopping beam access method according to an embodiment of the present application;
[0028] Figure 6 Fig. 6 is a structure schematic diagram of a communication system according to an embodiment of the present application;
[0029] Figure 7 Fig. 7 is a structure schematic diagram of a hopping beam access device according to an embodiment of the present application. DETAILED DESCRIPTION
[0030] In order to make the personnel in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by the personnel in the art without creative labor should belong to the protection scope of the present application.
[0031] It should be noted that the terms "first", "second", and the like in the description and in the claims of the present application and above-described accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.
[0032] In order to better understand the embodiments of the present application, the technical terms involved in the embodiments of the present application are explained as follows:
[0033] High-orbit satellite: Generally considered as a satellite orbiting above 20,000 kilometers, becoming a high-orbit earth satellite.
[0034] Medium-orbit satellite: The medium-orbit earth satellite MEO generally orbits between about 2,000-30,000 kilometers from the ground.
[0035] Beam hopping: The antenna uses phased array technology to realize digital beam synthesis. The antenna beam can access different spatial orientations as needed at different times to serve different spatial orientations, and has the ability to hop between multiple spatial orientations.
[0036] Fixed beam: The antenna beam is fixedly directed to a certain orientation in space.
[0037] Beam gaze: The satellite antenna is directed to a certain location on the ground. When the satellite moves quickly, the position area of the beam directed to the ground is basically unchanged, which is called beam gaze.
[0038] Wave position: The position area of the beam directed to the ground, or the multiple areas divided by the ground according to rules, used for beam pointing and access.
[0039] Narrowband Internet of Things (NB-IoT): A low-power, wide-area network communication technology designed specifically for Internet of Things devices.
[0040] Narrow Beam New Radio-Non-Terrestrial Networks (NR-NTN): Enhances the coverage and performance of satellite communication by using narrow beams, especially in non-terrestrial network environments such as low-orbit satellite communication scenarios.
[0041] In the related art, the beam hopping is based on the phased array antenna technology, adopts the beam synthesis technology, can flexibly adjust the pointing direction of the beam, can change over time, can enhance the gain of a single beam, and can flexibly and effectively schedule and utilize the power and communication resources of the satellite through beam scheduling, thereby improving the utilization rate of the system. However, when the user accesses, the network side device does not know the position of the user, so that the efficiency of user access is extremely low, and even causes the user to be unable to access for a long time. Therefore, in the related art, the access method of the beam hopping has the problem that the network side device does not know the position of the user, so that the efficiency of user access is extremely low, and even causes the user to be unable to access for a long time. In order to solve this problem, the related solutions are provided in the embodiments of the present application, which are described in detail below.
[0042] According to the embodiments of the present application, a method embodiment of an access method of a beam hopping is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a group of computer executable instructions, and although the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.
[0043] The method embodiment provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Figure 1 A hardware structure block diagram of a computer terminal for implementing an access method of a beam hopping is shown. As shown in the figure, Figure 1 The computer terminal 10 can include one or more processors 102 (the processor 102 can include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA), a memory 104 for storing data, and a transmission module 106 for communication function. In addition, it can also include a display, an input / output interface (I / O interface), a universal serial bus (USB) port (which can be included as one of the ports of the BUS bus), a network interface, a power supply and / or a camera. Those skilled in the art can understand that, Figure 1 The structure shown in the figure is only schematic, and does not limit the structure of the above-mentioned electronic device. For example, the computer terminal 10 can include more or fewer components than those shown in Figure 1 or have a different configuration from that shown in Figure 1 .
[0044] It should be noted that the one or more processors 102 and / or other data processing circuitry described above can be referred to herein generically as "data processing circuitry". The data processing circuitry can be embodied in whole or in part as software, hardware, firmware, or any combination thereof. Furthermore, the data processing circuitry can be a single standalone processing module, or incorporated in whole or in part within any one of the other elements of the computer terminal 10. As referred to in the embodiments herein, the data processing circuitry acts as a processor to control, for example, the selection of the variable resistance terminal path in connection with the interface.
[0045] The memory 104 can be used to store software programs of application software and modules, such as program instructions / data storage means corresponding to the access method of the skip beam according to the embodiments herein, and the processor 102 can execute various functional applications and data processing by running the software programs and modules stored in the memory 104, i.e. implement the access method of the skip beam described above. The memory 104 can include a high-speed random access memory, and can also include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some examples, the memory 104 can further include a memory remotely arranged with respect to the processor 102, which can be connected to the computer terminal 10 through a network. Examples of the network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.
[0046] The transmission device 106 is used to receive or send data via a network. Specific examples of the network can include a wireless network provided by a communication provider of the computer terminal 10. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 can be a radio frequency (Radio Frequency, RF) module, which is used to communicate with the Internet in a wireless manner.
[0047] The display can be, for example, a touch screen type liquid crystal display (LCD), which can enable a user to interact with the user interface of the computer terminal 10.
[0048] Under the above operating environment, the embodiments herein provide a flowchart of an access method of a skip beam, as shown in Figure 2 The method includes the following steps:
[0049] In step S202, the network side device receives the position information reported by the user equipment from the wide beam channel, wherein the network side device is configured with a wide beam signal and a narrow beam signal.
[0050] In the technical solution provided in step S202, the wide beam signal is a signal of a wide beam channel in the NB-IOT network, and the network side device defines indication information in the wide beam network corresponding to the wide beam signal when configuring the wide beam signal, and the indication information is used to indicate whether to access the wide beam network by an independent wide beam network or to access the wide beam network by a narrow beam network corresponding to a narrow beam signal guided by the wide beam network.
[0051] There are various ways to define the indication information in the wide beam network corresponding to the wide beam signal, for example, the indication information can be defined in the wide beam network corresponding to the wide beam signal in the following ways: a first parameter is defined in the master information block (MIB) to represent the indication information, the first parameter is 0 or null, which means that the wide beam network is used for an independent wide beam network (for example, an NB-IoT network), and the first parameter is 1, which means that the wide beam network is used to guide a narrow beam network (for example, an NR-NTN network) corresponding to a narrow beam signal to access; or a second parameter is defined in the system message block (SIB) information to represent the indication information, and when the second parameter is null, it means that the wide beam network is used for an independent wide beam network, and when the second parameter is 1, it means that the wide beam network is used to guide a narrow beam network to access; or a third parameter is defined in the radio resource control signaling (RRC signaling) to represent the indication information, and when the third parameter is 1, it means that the wide beam network is used to guide a narrow beam network corresponding to a narrow beam signal to access (for example, when the terminal receives the parameter and the value is “1”, the terminal reports the terminal position, and then enters the NR-NTN downlink search mode to search for an accessible network).
[0052] In step S204, the network side device adjusts the pointing direction of the service beam of the narrow beam signal according to the position information, wherein the adjusted service beam points to the user equipment (for example, the terminal side UE).
[0053] In the technical solution provided in step S204, after the network side device configures the wide beam signal (for example, the NB-IoT wide beam signal), the network side device sends the downlink synchronization signal and other information of the NB-IoT to the terminal side, detects the uplink NB-IoT access signal, receives the position information reported by the terminal side from the NB-IoT channel, and calls the service beam (for example, the NR-NTN hop beam) of the narrow beam signal (for example, the NR-NTN signal) to adjust the pointing direction of the service beam (for example, the NR-NTN hop beam) of the narrow beam signal (for example, the NR-NTN signal) to point to the user equipment corresponding to the position information reported by the terminal side.
[0054] Step S206, the network side device provides access service for the user equipment based on the service beam of the narrow beam signal.
[0055] In the technical solution provided in step S206, after the network side device configures the narrow beam signal (for example, the NR-NTN signal), the network side device sends the downlink synchronization signal and other information of the NR-NTN to the terminal side, detects the uplink NR-NTN access signal, receives the terminal (that is, the user equipment) access, and the service beam (for example, the NR-NTN hop beam) of the narrow beam signal (for example, the NR-NTN signal) provides access service for the user equipment.
[0056] After the network side device directs the service beam of the available narrow beam signal to the user equipment, the beam scheduling strategy is updated.
[0057] Through the above steps, the access problem in the case of satellite communication hop beam can be realized, the NB-IoT technology is used for position reporting, the advantage of small uplink and downlink bandwidth requirement of the technology is fully utilized, the satellite antenna gain can be reduced, the antenna (network) design of the preliminary access is simplified, the service beam uses the NR-NTN technology, the power and antenna (network) gain of the service beam can be fully utilized, better service is provided for the user equipment (UE), and the service of the user equipment (UE) on multiple beams can also be considered through the rapid hopping of the service beam.
[0058] In the following embodiments of the present application, another flowchart of the hop beam access method is also provided, as shown in Figure 3
[0059] Step S302, the user equipment of the terminal side searches for the narrow beam signal, and judges whether the user equipment is in the service beam of the narrow beam signal.
[0060] Step S304, when the user equipment is not in the service beam of the narrow beam signal, the wide beam signal is searched, and the position information is reported to the network side device through the wide beam channel of the wide beam signal.
[0061] In the technical solution provided in step S304, when the user equipment is in the service beam of the narrow beam signal, the user equipment accesses in the service beam.
[0062] It should be noted that the above position information can be indicated in the following ways: the position information is indicated by complete global navigation satellite system (GNSS) data of the user equipment (UE); or the position information is processed according to a preset proportion of a diameter of a satellite beam projected on the ground as a quantization precision of the GNSS data of the UE, and the processed position information is reported; or the earth surface is divided into position areas of equal size according to a preset rule, and the position areas are numbered to obtain position indexes; the UE determines a target position area in which the UE is located according to a pre-prepared area division table and the GNSS data of the UE, and indicates the position information by a position index corresponding to a number of the target position area; or the position information is indicated by latitude and longitude information of an area in which the UE is located.
[0063] The following are specific examples of indicating the position information:
[0064] Example 1:
[0065] The position information is indicated by GNSS data of the UE.
[0066] Precise indication: the positioning accuracy is in meters, and the complete GNSS information is used for indication.
[0067] Rough indication: the GNSS data is processed according to 1 / 3 of a diameter of a satellite beam projected on the ground as a quantization precision of the GNSS data of the UE, and then the processed GNSS position data information is reported.
[0068] Example 2:
[0069] The position information is indicated by a position index of an area in which the UE is located: the earth surface is divided into position areas of equal size according to a rule, and the position areas are numbered, and the UE determines a position area in which the UE is located according to a pre-prepared area division table and the GNSS data of the UE, and indicates the position of the UE by a number index of the area (i.e., the number of the position index corresponding to the target position area).
[0070] For example, the whole world is divided into 1024 position areas, and 10-bit indexes are used to represent the numbers of the position areas, and the number of the area in which the UE is located is reported each time to indicate the position of the UE.
[0071] Example 3: latitude and longitude indication, the UE indicates the position by latitude and longitude information of an area in which the UE is located.
[0072] Precise indication: quantization accuracy is 0.1°; "0" represents east longitude, "1" represents west longitude, and other 11 bits indicate the longitude value; "0" represents north latitude, "1" represents south latitude, and other 10 bits indicate the latitude value. A total of 23 bits.
[0073] Coarse indication: quantization accuracy is 1°; "0" represents east longitude, "1" represents west longitude, and other 8 bits indicate the longitude value; "0" represents north latitude, "1" represents south latitude, and other 7 bits indicate the latitude value. A total of 17 bits.
[0074] Simple indication: quantization accuracy is 3°; "0" represents east longitude, "1" represents west longitude, and other 6 bits indicate the longitude value; "0" represents north latitude, "1" represents south latitude, and other 5 bits indicate the latitude value. A total of 13 bits.
[0075] Step S306, the user equipment searches the narrow beam signal of the network side equipment based on the position information and accesses in the service beam of the narrow beam signal.
[0076] The following is a specific embodiment: the UE (i.e. the above-mentioned user equipment) searches the downlink NR-NTN signal (i.e. the above-mentioned narrow beam signal), judges whether the current UE is in the NR-NTN service beam (i.e. the service beam of the above-mentioned narrow beam signal), if it is in the NR-NTN service beam, it can initiate access in the NR-NTN beam; the current UE judges that it is not in the NR-NTN service beam, then searches the synchronized NB-IoT signal and initiates the NB-IoT access request, the current UE reports the position information through the NB-IoT channel, after obtaining the position information, the current UE searches the NR-NTN signal of the NR-NTN service beam (i.e. the above-mentioned narrow beam signal of the network side equipment based on the position information and pointing to the user equipment), and accesses in the NR-NTN service beam.
[0077] In the technical solutions provided in steps S304-S306, the user equipment reports the location information to the network side device through the wide beam channel (for example, the NB-IoT channel) of the wide beam signal. The implementation manner of the user equipment searching for the narrow beam signal of the network side device based on the location information is various, for example: the user equipment sends a random access preamble (for example, a random access preamble (Narrowband Physical Random Access Channel, abbreviated as NPRACH)) and the location information to the network side device through the wide beam channel of the wide beam signal; the user equipment receives a random access response message (for example, a random access response (Random Access Response, abbreviated as RAR)), wherein the random access response message is used to indicate whether the network side device receives the location information; or the user equipment waits for a preset round trip time (for example, a round trip time (Round-Trip Time, abbreviated as RTT)) and searches for the narrow beam signal (for example, an NR-NTN downlink synchronization signal) of the network side device based on the location information.
[0078] After the user equipment receives the random access response message, the user equipment reports the location information to the network side device through a first message, wherein the first message is a connection request message sent by an uplink resource allocated in the random access response message; the user equipment confirms whether the network side device receives the location information in a second message, wherein the second message is a connection establishment confirmation message returned by the network side device; or, after the user equipment waits for a preset round trip time and searches for the narrow beam signal of the network side device based on the location information, the user equipment confirms whether the network side device receives the location information in a radio resource control connection RRC message after reporting the location information to the network side device through the wide beam channel of the wide beam signal; or, after the user equipment reports the location information, the user equipment starts a timer, and searches for the narrow beam signal of the network side device based on the location information after the timer ends.
[0079] The following are several specific examples of terminal side user equipment reporting location information and searching for NR-NTN signals:
[0080] Example 1:
[0081] The UE (i.e., the user equipment described above) carries the location information after the NPRACH data when sending the uplink preamble in the NB-IoT channel (i.e., the wide beam channel of the wide beam signal described above), that is, the preamble (corresponding to the random access preamble described above (e.g., the Narrowband Physical Random Access Channel (NPRACH)) and the location information are reported to the network side device. The UE can confirm whether the network side device receives the location data by searching for the received RAR message (corresponding to the random access response message described above). The UE can also not confirm, and after sending the reported preamble + location data, wait for 1 / 2 RTT and directly search for the NR-NTN downlink synchronization signal (corresponding to the user equipment waiting for a preset round trip time to search for the narrow beam signal of the network side device pointing to the user equipment based on the location information).
[0082] Example 2:
[0083] The UE completes NPRACH sending and RAR receiving in the NB-IoT channel, and then carries the location information in Msg3 (corresponding to the first message described above) to report to the network side device. The UE can confirm whether the network side device receives the location information in Msg4 (corresponding to the second message described above), and then waits for NR-NTN beam access. The UE can also not confirm through the Msg4 message, and after sending the Msg3, waits for 1 / 2 RTT (corresponding to the preset round trip time) and directly searches for the NR-NTN downlink synchronization signal (corresponding to the search for the narrow beam signal of the network side device pointing to the user equipment based on the location information). Msg3 corresponds to the message for interaction in the third step of the four-step random access, the connection request message sent by the uplink resource, Msg4 corresponds to the message for interaction in the fourth step of the four-step random access, and the connection establishment confirmation message returned by the network side device. The four-step random access process is as follows:
[0084] 1. Random access request: the UE first sends a random access request (RAR) to the network, which contains the identity information and access reason of the UE, and the UE randomly selects a PRACH (Physical Random Access Channel) resource to send the RAR.
[0085] 2. Random access response: after the network side device receives the RAR of the UE, it sends a random access response (RAR) to the UE, which contains the uplink resource allocated to the UE, time adjustment information, temporary UE identifier, etc.
[0086] 3. Connection Request: UE sends a connection request using the uplink resource allocated in the RAR. This request contains the complete identity information of the UE, service requirements, etc.
[0087] 4. Connection Establishment: After the network side device receives the connection request of the UE, it will perform corresponding processing, such as identity verification, resource allocation, etc. If the verification is passed, the network side device sends a connection establishment confirmation (Connection Establishment Accept) to the UE, indicating that the UE has successfully accessed the network. If there is a problem, the network side device will send a connection establishment rejection (Connection Establishment Reject).
[0088] Example 3:
[0089] After the UE completes the 4-step random access and authentication in the NB-IoT channel, it reports the UE location to the network side device through the RRC message. The UE can confirm whether the network side device receives the location information and the scheduling information of the NR-NTN service beam given by the network side device in the RRC message, and then waits for the access service of the NR-NTN beam according to the scheduling information. The UE can also not confirm through the RRC message, and after reporting the location information, start a timer. After the timer ends, directly search for the NR-NTN downlink synchronization signal (corresponding to the above search for the narrow beam signal of the network side device pointing to the user equipment based on the location information).
[0090] In the following embodiments of the present application, a network side flowchart of a beam hopping access method is also provided, as shown in Figure 4As shown, after the network side (i.e. network side device) configures the wide beam signal (e.g. NB-IoT wide beam signal), the network side (i.e. network side device) sends the downlink synchronization signal and the like information of NB-IoT to the terminal side, detects the uplink NB-IoT access signal, receives the location information reported by the terminal side from the NB-IoT channel, and calls the service beam (e.g. NR-NTN beam hopping) of the narrow beam signal (e.g. NR-NTN signal), adjusts the pointing of the service beam (e.g. NR-NTN beam hopping) of the narrow beam signal (e.g. NR-NTN signal) to point to the user equipment corresponding to the location information reported by the terminal side, sends the downlink synchronization signal and the like information of NR-NTN to the terminal side, detects the uplink NR-NTN access signal, receives the terminal (i.e. user equipment) access, and the service beam (e.g. NR-NTN beam hopping) of the narrow beam signal (e.g. NR-NTN signal) provides access service; after the network side (i.e. network side device) configures the narrow beam signal (e.g. NR-NTN signal), the network side (i.e. network side device) sends the downlink synchronization signal and the like information of NR-NTN to the terminal side, detects the uplink NR-NTN access signal, receives the terminal (i.e. user equipment) access, and the service beam (e.g. NR-NTN beam hopping) of the narrow beam signal (e.g. NR-NTN signal) provides access service.
[0091] In the following embodiments of the present application, a terminal side flowchart of a beam hopping access method is also provided, as shown in Figure 5 As shown, the terminal (i.e. UE, the above-mentioned user equipment) detects the NR-NTN downlink synchronization signal (i.e. the above-mentioned narrow beam signal), judges whether it is synchronized (i.e. judges whether the current UE is in the NR-NTN service beam (i.e. the service beam of the above-mentioned narrow beam signal)), if it is synchronized (i.e. the UE is in the NR-NTN service beam), the access can be initiated in the service beam (i.e. the above-mentioned NR-NTN service beam), the terminal side performs authentication and the like in the service beam (i.e. the above-mentioned NR-NTN service beam) after the access is successful, and accepts services, and if the access is unsuccessful, the NR-NTN downlink synchronization signal is re-detected; if the current UE is not synchronized (i.e. judges not in the NR-NTN service beam), the NB-IoT downlink synchronization signal is detected, and whether it is synchronized is judged, if it is synchronized, the terminal initiates an access request in the NB-IoT beam, the current UE reports the location information through the NB-IoT channel, after obtaining the location information, the NR-NTN downlink synchronization signal is re-detected to complete the access.
[0092] In the following embodiments of the present application, a structure diagram of a communication system is also provided, as shown in Figure 6As shown, it comprises a terminal side 62 and a network side device 60, wherein the network side device 60 is configured to receive the position information reported by the user equipment from the wide beam channel, the network side device is configured with a wide beam signal and a narrow beam signal, and the network side device adjusts the pointing direction of the service beam of the narrow beam signal according to the position information, wherein the adjusted service beam points to the user equipment, and the user equipment is provided with access service based on the service beam of the narrow beam signal.
[0093] The user equipment of the terminal side 62 searches for the narrow beam signal and judges whether the user equipment is in the service beam of the narrow beam signal; when the user equipment is not in the service beam of the narrow beam signal, the user equipment searches for the wide beam signal and reports the position information to the network side device through the wide beam channel of the wide beam signal, and the user equipment searches for the narrow beam signal pointed to the user equipment by the network side device based on the position information and accesses in the service beam of the narrow beam signal.
[0094] In the following embodiments of the present application, a structure diagram of a beam hopping access device is also provided, as shown in Figure 7 which comprises:
[0095] The receiving module 702 is configured to receive the position information reported by the user equipment from the wide beam channel, wherein the network side device is configured with a wide beam signal and a narrow beam signal.
[0096] The receiving module 702 is further configured to configure the network side device with a wide beam signal, define indication information in the wide beam network corresponding to the wide beam signal, and the indication information is used to indicate whether the wide beam network is used for independent wide beam network or the wide beam network is used to guide the narrow beam network corresponding to the narrow beam signal to access the wide beam network, wherein the indication information is defined in the wide beam network corresponding to the wide beam signal: a first parameter is defined in the master information block information to represent the indication information, the first parameter is 0 or null value, which means that the wide beam network is used for independent wide beam network, and the first parameter is 1, which means that the wide beam network is used to guide the narrow beam network corresponding to the narrow beam signal to access; or a second parameter is defined in the system message block information to represent the indication information, and when there is no second parameter, it means that the wide beam network is used for independent wide beam network, and the second parameter is 1, which means that the wide beam network is used to guide the narrow beam network corresponding to the narrow beam signal to access; or a third parameter is defined in the radio resource control signaling to represent the indication information, and the third parameter is 1, which means that the wide beam network is used to guide the narrow beam network corresponding to the narrow beam signal to access.
[0097] The user equipment adjusting module 704 is configured to adjust the pointing direction of the service beam of the narrow beam signal according to the position information, wherein the adjusted service beam points to the user equipment.
[0098] The access module 706 is configured to provide, by the network-side device, an access service for the user equipment based on the service beam.
[0099] The embodiment of the present application further provides another access device for beam hopping, comprising a judging module, a first processing module and a second processing module. Figure 3 The first processing module is configured to perform step S304 in the method for hopping beam access. Figure 3 The second processing module is configured to perform step S306 in the method for hopping beam access. Figure 3 The specific content is not described here again.
[0100] It should be noted that each module in the above access device for hopping beam can be a program module (for example, a program instruction set for implementing a certain specific function) or a hardware module. For the latter, it can be in the following form, but is not limited to this: the form of each module is a processor, or the functions of each module are realized by a processor.
[0101] The embodiment of the present application further provides a non-volatile storage medium, which comprises a stored program, wherein when the program runs, the non-volatile storage medium controls the device where the non-volatile storage medium is located to perform the above method for hopping beam access, comprising the method for hopping beam access shown in Figure 2 and Figure 3 .
[0102] The embodiment of the present application further provides an electronic device, which comprises a processor, and the processor is configured to run a program, wherein when the program runs, the processor performs the above method for hopping beam access, comprising the method for hopping beam access shown in Figure 2 and Figure 3 .
[0103] In the above embodiments of the present application, the description of each embodiment has its own focus, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.
[0104] In the several embodiments provided by the present application, it should be understood that the disclosed technology can be implemented in other ways. Of course, the unit described as the division is only a logical function division, and there can be another division manner in actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, unit or module, and can be electrical or other forms.
[0105] The units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.
[0106] In addition, the functional units in each embodiment of the present application can be integrated in one processing unit, or each unit can be physically present separately, or two or more units can be integrated in one unit. The integrated unit can be realized in the form of hardware or in the form of a software functional unit.
[0107] The integrated unit, if realized in the form of a software functional unit and sold or used as an independent product, can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the present application or the part that contributes to the related art or the whole or part of the technical solutions can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes a plurality of instructions for causing a computer device (which can be a personal computer, a server or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The foregoing storage medium includes: a U disk, a read-only memory (ROM, Read-Only Memory), a random access memory (RAM, Random Access Memory), a mobile hard disk, a magnetic disk or an optical disk, and various program code storage media.
[0108] The above is only the preferred embodiment of the present application, and it should be pointed out that for those skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, which should be considered as the protection scope of the present application.
Claims
1. A method of accessing a hop beam, the method comprising: The method comprises: A network side device receives position information reported by a user equipment from a wide beam channel, wherein the network side device is configured with a wide beam signal and a narrow beam signal, the position information is indicated by global navigation satellite system data of the user equipment, the wide beam signal is located in a narrow band internet of things, and the user equipment is not in a service beam of the narrow beam signal; The network side device adjusts a pointing direction of the service beam of the narrow beam signal according to the position information, wherein the adjusted service beam points to the user equipment; The network side device provides access service for the user equipment based on the service beam of the narrow beam signal, wherein the user equipment searches for a narrow beam signal pointed to the user equipment by the network side device based on the position information, and performs access in the service beam of the narrow beam signal.
2. The method of claim 1, wherein, When the network side device configures the wide beam signal, the network side device defines indication information in a wide beam network corresponding to the wide beam signal, and the indication information is used to indicate whether the wide beam network is accessed by an independent wide beam network or the wide beam network guides a narrow beam network corresponding to the narrow beam signal to access the wide beam network.
3. The method of claim 2, wherein, The network side device defines the indication information in the wide beam network corresponding to the wide beam signal, comprising: A first parameter is defined in master information block information to represent the indication information, and when the first parameter is 0 or null, it represents that the wide beam network is used for the independent wide beam network, and when the first parameter is 1, it represents that the wide beam network is used to guide the narrow beam network corresponding to the narrow beam signal to access; or A second parameter is defined in system message block information to represent the indication information, and when the second parameter is not present, it represents that the wide beam network is used for the independent wide beam network, and when the second parameter is 1, it represents that the wide beam network is used to guide the narrow beam network corresponding to the narrow beam signal to access; or A third parameter is defined in radio resource control signaling to represent the indication information, and when the third parameter takes a value of 1, it represents that the wide beam network is used to guide the narrow beam network corresponding to the narrow beam signal to access.
4. The method of claim 1, wherein, The method further comprises: After the network side device mobilizes the service beam of the available narrow beam signal to point to the user equipment, the network side device updates a beam scheduling strategy.
5. A method of accessing a hop beam, the method comprising: The method comprises: A terminal side user equipment searches for a narrow beam signal and judges whether the user equipment is in a service beam of the narrow beam signal; When the user equipment is not in the service beam of the narrow beam signal, a wide beam signal is searched, and position information is reported to a network side device through a wide beam channel of the wide beam signal, wherein the wide beam signal is located in a narrow band internet of things, and the position information is indicated by global navigation satellite system data of the user equipment; The user equipment searches for a narrow beam signal pointed to the user equipment by the network side device based on the position information, and performs access in a service beam of the narrow beam signal.
6. The method of claim 5, wherein, reporting position information to the network side device through the wide beam channel of the wide beam signal, the user equipment searching a narrow beam signal of the network side device pointing to the user equipment based on the position information, comprising: the user equipment sending a random access preamble and the position information to the network side device through the wide beam channel of the wide beam signal for reporting; the user equipment receiving a random access response message, wherein the random access response message is used to indicate whether the network side device receives the position information; or the user equipment waiting for a preset round trip time and then searching the narrow beam signal of the network side device pointing to the user equipment based on the position information.
7. The method of claim 6, wherein, The method further comprises: after the user equipment receives the random access response message, reporting the position information to the network side device through a first message, wherein the first message is a connection request message sent through uplink resources allocated in the random access response message; the user equipment confirming whether the network side device receives the position information in a second message, wherein the second message is a connection establishment confirmation message returned by the network side device; or the user equipment waiting for the preset round trip time and then searching the narrow beam signal of the network side device pointing to the user equipment based on the position information.
8. The method of claim 5, wherein, After the user equipment reports the position information to the network side device through the wide beam channel of the wide beam signal, the method further comprises: the user equipment confirming whether the network side device receives the position information in a radio resource control connection (RRC) message; or the user equipment starting a timer after reporting the position information, and searching the narrow beam signal of the network side device pointing to the user equipment based on the position information after the timer ends.
9. The method of claim 5, wherein, The position information is indicated by: using complete global navigation satellite system (GNSS) data of the user equipment to indicate the position information; or processing the position information according to a preset proportion of a diameter of a satellite beam projected on the ground as a quantization precision of GNSS data of the user equipment, and reporting the processed position information.
10. The method of claim 5, wherein, The position information is indicated by: dividing equal size position areas on the earth surface according to a preset rule, and numbering the position areas to obtain a position index; the user equipment determining a target position area in which the user equipment is located according to a pre-prepared area division table and GNSS data of the user equipment, and indicating the position information by the position index corresponding to the number of the target position area; or using longitude and latitude information of the area in which the user equipment is located to indicate the position information.
11. The method of claim 5, wherein, When the user equipment is in a service beam of the narrow beam signal, the user equipment accesses in the service beam.
12. A hopping beam access device, characterized by Comprise: The receiving module is configured to receive, by a network side device, position information reported by a user equipment from a wide beam channel, wherein the network side device is configured with a wide beam signal and a narrow beam signal, the position information is indicated by global navigation satellite system data of the user equipment, the wide beam signal is located in narrowband internet of things, and the user equipment is not in a service beam of the narrow beam signal; The user equipment adjusting module is configured to adjust, by the network side device, a pointing direction of the service beam of the narrow beam signal according to the position information, wherein the adjusted service beam points to the user equipment; The access module is configured to provide, by the network side device, access service for the user equipment based on the service beam, wherein the user equipment searches for the narrow beam signal of the network side device which points to the user equipment based on the position information, and performs access in the service beam of the narrow beam signal.
13. A communication system, characterized by Comprise: A network side device and a terminal side; The network side device is configured to receive position information reported by a user equipment from a wide beam channel, wherein the network side device is configured with a wide beam signal and a narrow beam signal, the position information is indicated by global navigation satellite system data of the user equipment, the wide beam signal is located in narrowband internet of things, and the user equipment is not in a service beam of the narrow beam signal; adjust a pointing direction of the service beam of the narrow beam signal according to the position information, wherein the adjusted service beam points to the user equipment; and provide access service for the user equipment based on the service beam of the narrow beam signal; The terminal side user equipment searches for the narrow beam signal and judges whether the user equipment is in the service beam of the narrow beam signal; when the user equipment is not in the service beam of the narrow beam signal, searches for a wide beam signal, and reports position information to the network side device through a wide beam channel of the wide beam signal; the user equipment searches for the narrow beam signal of the network side device which points to the user equipment based on the position information, and performs access in the service beam of the narrow beam signal.
14. An electronic device, comprising: Comprise: A memory and a processor, the processor is configured to run a program stored in the memory, wherein the program performs the beam hopping access method of any one of claims 1 to 4 when running, or performs the beam hopping access method of any one of claims 5 to 11.
Citation Information
Patent Citations
Communication systems, apparatuses, methods, and non-transitory computer-readable storage devices for wireless communication using a highly overlapping beam-layout
WO2024148485A1