CN114916019B - Information processing method, device and computer readable storage medium - Google Patents
Information processing method, device and computer readable storage medium Download PDFInfo
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- CN114916019B CN114916019B CN202110170817.3A CN202110170817A CN114916019B CN 114916019 B CN114916019 B CN 114916019B CN 202110170817 A CN202110170817 A CN 202110170817A CN 114916019 B CN114916019 B CN 114916019B
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- 230000010365 information processing Effects 0.000 title claims abstract description 36
- 238000003672 processing method Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 39
- 238000005259 measurement Methods 0.000 claims abstract description 30
- 230000011664 signaling Effects 0.000 claims description 34
- 230000015654 memory Effects 0.000 claims description 28
- 238000004590 computer program Methods 0.000 claims description 12
- 108010076504 Protein Sorting Signals Proteins 0.000 claims description 5
- 238000004891 communication Methods 0.000 abstract description 5
- 210000004027 cell Anatomy 0.000 description 53
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- 230000009286 beneficial effect Effects 0.000 description 4
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- 238000010295 mobile communication Methods 0.000 description 3
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- 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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
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- 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
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/24—Reselection being triggered by specific parameters
- H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W56/00—Synchronisation arrangements
- H04W56/001—Synchronization between nodes
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- 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
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Abstract
The application discloses an information processing method, an information processing device and a computer readable storage medium, which relate to the technical field of communication and are used for reducing time delay of terminal equipment in inter-satellite switching. The method comprises the following steps: the network equipment receives measurement information reported by the terminal equipment; the network equipment acquires satellite data information; when the terminal equipment is determined to need to perform inter-satellite switching according to the measurement information and the satellite data information, the network equipment sends first information to the terminal equipment; wherein the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite. The embodiment of the application can reduce the time delay of the terminal equipment in inter-satellite switching.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to an information processing method, an information processing device, and a computer readable storage medium.
Background
The 5G NR (New Radio) cellular mobile communication system adopts a beam scanning technology, and can more effectively utilize network resources to provide services for User Equipment (UE) in a cell through beam management. However, the NR beam does not distinguish between the traffic and control beams, and the same beam contains both traffic and control data. The traffic beam and the control beam are not distinguished at the time of UE handover.
For a low-orbit mobile satellite communication system with independent configuration of future service beams and control beams, the service beams are mainly responsible for transmission of service data, and have large capacity, quick change and small range; the control beam is mainly responsible for the transmission of control signaling, and has low capacity, slow change and large range. It can be seen that the configuration parameters of the two beams are different. Due to the fast mobility of low orbit satellites, the UE needs to constantly switch between different satellites to maintain continuity of service. Inter-satellite handoff based on traffic beams is an effective solution in order to improve handoff efficiency and reduce delay. However, in this method, during inter-satellite handover, after the UE enters the target satellite cell, it needs to enter the control beam to obtain cell synchronization, and then switch to service beam handover access. It can be seen that this switching between the traffic beam and the control beam will introduce additional switching delay.
Disclosure of Invention
The embodiment of the application provides an information processing method, an information processing device and a computer readable storage medium, which are used for reducing the time delay of terminal equipment in inter-satellite switching.
In a first aspect, an embodiment of the present application provides an information processing method, including:
The network equipment receives measurement information reported by the terminal equipment;
the network equipment acquires satellite data information;
when the terminal equipment is determined to need to perform inter-satellite switching according to the measurement information and the satellite data information, the network equipment sends first information to the terminal equipment;
wherein the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
Wherein the measurement information includes location information of the terminal device; the satellite data information comprises position information of a source satellite and position information of a target satellite;
if the first information includes a time synchronization error between the terminal device and a target cell, the network device sends the first information to the terminal device, including:
the network equipment calculates a first distance between the terminal equipment and the source satellite at the switching moment according to the position information of the terminal equipment and the position information of the source satellite;
the network equipment calculates a second distance between the terminal equipment and the target satellite at the switching moment according to the position information of the terminal equipment and the position information of the target satellite;
The network device calculates a distance difference between the first distance and the second distance;
the network equipment obtains a time synchronization error between the terminal equipment and a target cell according to the distance difference;
the network device sends first information to the terminal device, wherein the first information comprises the time synchronization error.
Wherein the network device sends first information to the terminal device, including:
the network device sends RRC (Radio Resource Control ) signaling to the terminal device, the first information being included in the RRC signaling.
In a second aspect, an embodiment of the present application provides an information processing method, including:
the terminal equipment receives first information sent by the network equipment;
the terminal equipment adjusts signal time sequence according to the first information;
according to the adjusted signal time sequence, signal processing is carried out on the target cell;
wherein the first information is sent when the network device determines that the terminal device needs to perform inter-planet handover; the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
The terminal device receives first information sent by the network device, and the first information comprises:
and the terminal equipment receives the RRC signaling sent by the network equipment, wherein the RRC signaling comprises the first information.
Wherein if the first information includes a time synchronization error between the terminal device and the target cell, the terminal device adjusts a signal timing according to the first information, including:
the terminal equipment adjusts a receiving time window and a transmitting time window of the terminal equipment according to the time synchronization error;
and performing signal processing on the target cell according to the adjusted signal time sequence, including:
and receiving the downlink signal according to the adjusted receiving time window and/or transmitting the uplink signal according to the adjusted transmitting time window.
Wherein if the first information includes the position information of the source satellite and the position information of the target satellite, the terminal device adjusts the signal timing according to the first information, including:
the terminal equipment determines the position information of the source satellite at the current moment and the position information of the target satellite at the current moment according to the position information of the source satellite and the position information of the target satellite;
The terminal equipment calculates a third distance between the terminal equipment and the source satellite according to the position information of the terminal equipment at the current moment and the position information of the source satellite at the current moment;
the terminal equipment calculates a fourth distance between the terminal equipment and the target satellite according to the position information of the terminal equipment at the current moment and the position information of the target satellite at the current moment;
the terminal equipment calculates a distance difference between the third distance and the fourth distance;
the terminal equipment obtains a time synchronization error between the terminal equipment and the target cell according to the distance difference;
the terminal equipment adjusts a receiving time window and a transmitting time window of the terminal equipment according to the time synchronization error;
and performing signal processing on the target cell according to the adjusted signal time sequence, including:
and receiving the downlink signal according to the adjusted receiving time window and/or transmitting the uplink signal according to the adjusted transmitting time window.
In a third aspect, an embodiment of the present application provides an information processing apparatus, applied to a network device, including a memory, a transceiver, and a processor:
A memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
receiving measurement information reported by terminal equipment;
acquiring satellite data information;
when the terminal equipment is determined to need to perform inter-satellite switching according to the measurement information and the satellite data information, first information is sent to the terminal equipment;
wherein the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
Wherein the measurement information includes location information of the terminal device; the satellite data information comprises position information of a source satellite and position information of a target satellite;
if the first information includes a time synchronization error between the terminal device and a target cell, the processor is configured to:
calculating a first distance between the terminal equipment and the source satellite at the switching moment according to the position information of the terminal equipment and the position information of the source satellite;
Calculating a second distance between the terminal equipment and the target satellite at the switching moment according to the position information of the terminal equipment and the position information of the target satellite;
calculating a distance difference between the first distance and the second distance;
obtaining a time synchronization error between the terminal equipment and a target cell according to the distance difference;
and sending first information to the terminal equipment, wherein the first information comprises the time synchronization error.
Wherein the processor is configured to: and sending RRC signaling to the terminal equipment, wherein the RRC signaling comprises the first information.
In a fourth aspect, an embodiment of the present application provides an information processing apparatus, applied to a terminal device, including a memory, a transceiver, and a processor:
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
receiving first information sent by network equipment;
adjusting a signal timing according to the first information;
according to the adjusted signal time sequence, signal processing is carried out on the target cell;
wherein the first information is sent when the network device determines that the terminal device needs to perform inter-planet handover; the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
Wherein the processor is configured to:
and receiving RRC signaling sent by the network equipment, wherein the RRC signaling comprises the first information.
Wherein if the first information comprises a time synchronization error between the terminal device and the target cell, the processor is configured to:
according to the time synchronization error, adjusting a receiving time window and a transmitting time window of the terminal equipment;
and receiving the downlink signal according to the adjusted receiving time window and/or transmitting the uplink signal according to the adjusted transmitting time window.
Wherein if the first information includes location information of a source satellite and location information of a target satellite, the processor is configured to:
determining the position information of the source satellite at the current moment and the position information of the target satellite at the current moment according to the position information of the source satellite and the position information of the target satellite;
calculating a third distance between the terminal equipment and the source satellite according to the position information of the terminal equipment at the current moment and the position information of the source satellite at the current moment;
calculating a fourth distance between the terminal equipment and the target satellite according to the position information of the terminal equipment at the current moment and the position information of the target satellite at the current moment;
Calculating a distance difference between the third distance and the fourth distance;
obtaining a time synchronization error between the terminal equipment and the target cell according to the distance difference;
according to the time synchronization error, adjusting a receiving time window and a transmitting time window of the terminal equipment;
and receiving the downlink signal according to the adjusted receiving time window and/or transmitting the uplink signal according to the adjusted transmitting time window.
In a fifth aspect, an embodiment of the present application provides an information processing apparatus, applied to a network device, including:
the first receiving unit is used for receiving measurement information reported by the terminal equipment;
the first acquisition unit is used for acquiring satellite data information;
the first sending unit is used for sending first information to the terminal equipment when the terminal equipment is determined to need to perform inter-satellite switching according to the measurement information and the satellite data information;
wherein the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
In a sixth aspect, an embodiment of the present application provides an information processing apparatus, applied to a terminal device, including:
The first receiving unit is used for receiving first information sent by the network equipment;
a first adjusting unit for adjusting a signal timing according to the first information;
the first processing unit is used for performing signal processing on the target cell according to the adjusted signal time sequence;
wherein the first information is sent when the network device determines that the terminal device needs to perform inter-planet handover; the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
In a seventh aspect, embodiments of the present application provide a processor-readable storage medium storing a computer program for causing the processor to perform the method as described above.
In the embodiment of the application, when the network equipment determines that the terminal equipment needs to perform inter-satellite switching according to the measurement information and the satellite data information reported by the terminal equipment, the network equipment sends first information to the terminal equipment. Wherein the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite. Through the first information, the terminal equipment does not need to switch to the control beam to carry out downlink synchronization when accessing the target cell, but can directly carry out synchronization through the service beam, so that the scheme of the embodiment of the application is utilized to save delay caused by beam switching and the like.
Drawings
FIG. 1 is one of the flowcharts of an information processing method provided by an embodiment of the present application;
FIG. 2 is a second flowchart of an information processing method according to an embodiment of the present application;
fig. 3 is one of the block diagrams of the information processing apparatus provided by the embodiment of the present application;
FIG. 4 is a second block diagram of an information processing apparatus according to an embodiment of the present application;
FIG. 5 is a third configuration diagram of an information processing apparatus according to an embodiment of the present application;
fig. 6 is a diagram showing a structure of an information processing apparatus according to an embodiment of the present application.
Detailed Description
In the embodiment of the application, the term "and/or" describes the association relation of the association objects, which means that three relations can exist, for example, a and/or B can be expressed as follows: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.
The term "plurality" in embodiments of the present application means two or more, and other adjectives are similar.
The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application provides an information processing method, an information processing device, information processing equipment and a computer readable storage medium, which are used for reducing time delay of UE (user equipment) in inter-satellite switching.
The method and the device are based on the same application, and because the principles of solving the problems by the method and the device are similar, the implementation of the device and the method can be referred to each other, and the repetition is not repeated.
The technical scheme provided by the embodiment of the application can be suitable for various systems, in particular to a 5G system. For example, suitable systems may be global system for mobile communications (global system of mobile communication, GSM), code division multiple access (code division multiple access, CDMA), wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA) universal packet Radio service (general packet Radio service, GPRS), long term evolution (long term evolution, LTE), LTE frequency division duplex (frequency division duplex, FDD), LTE time division duplex (time division duplex, TDD), long term evolution-advanced (long term evolution advanced, LTE-a), universal mobile system (universal mobile telecommunication system, UMTS), worldwide interoperability for microwave access (worldwide interoperability for microwave access, wiMAX), 5G New air interface (New Radio, NR), and the like. Terminal devices and network devices are included in these various systems. Core network parts such as evolved packet system (Evloved Packet System, EPS), 5G system (5 GS) etc. may also be included in the system.
The terminal device according to the embodiment of the present application may be a device that provides voice and/or data connectivity to a user, a handheld device with a wireless connection function, or other processing devices connected to a wireless modem, etc. The names of the terminal devices may also be different in different systems, for example in a 5G system, the terminal devices may be referred to as User Equipment (UE). The wireless terminal device may communicate with one or more Core Networks (CNs) via a radio access Network (Radio Access Network, RAN), which may be mobile terminal devices such as mobile phones (or "cellular" phones) and computers with mobile terminal devices, e.g., portable, pocket, hand-held, computer-built-in or vehicle-mounted mobile devices that exchange voice and/or data with the radio access Network. Such as personal communication services (Personal Communication Service, PCS) phones, cordless phones, session initiation protocol (Session Initiated Protocol, SIP) phones, wireless local loop (Wireless Local Loop, WLL) stations, personal digital assistants (Personal Digital Assistant, PDAs), and the like. The wireless terminal device may also be referred to as a system, subscriber unit (subscriber unit), subscriber station (subscriber station), mobile station (mobile), remote station (remote station), access point (access point), remote terminal device (remote terminal), access terminal device (access terminal), user terminal device (user terminal), user agent (user agent), user equipment (user device), and embodiments of the present application are not limited in this respect.
The network device according to the embodiment of the present application may be a gateway station, a satellite with a base station function, or the like.
Referring to fig. 1, fig. 1 is a flowchart of an information processing method provided in an embodiment of the present application, as shown in fig. 1, including the following steps:
and step 101, the network equipment receives measurement information reported by the terminal equipment.
The measurement information reported by the terminal equipment comprises signal strength information, position information of the UE and the like. The signal strength information may include, for example, signal measurement information such as RSRP (Reference Signal Received Power ). The location information of the terminal device may be represented by coordinates (longitude, latitude, altitude) corresponding to the location of the terminal device at a certain moment, or may be represented by coordinates (x 0, y0, z0; vx0, vy0, vz 0) of a Earth-Centered, earth-Fixed, ECEF, coordinate system.
Step 102, the network device acquires satellite data information.
Wherein the satellite data information includes position information of a source satellite and position information of a target satellite. The terminal equipment is located in the coverage of the source satellite before switching, and the terminal equipment is located in the coverage of the target satellite after switching.
Wherein the locations of the source satellite and the target satellite may be represented jointly using satellite position, velocity, and time scale. For example, taking a certain time T0 as an example, the positions and velocities of the corresponding source satellite and target satellite in the ECEF coordinate system are represented. For example: (T0; x1, y1, z1; vx1, vy1, vz 1) represents the source satellite position; (T0; x2, y2, z2; vx2, vy2, vz 2) represent the target satellite position.
Step 103, when it is determined that the terminal device needs to perform inter-satellite handover according to the measurement information and the satellite data information, the network device sends first information to the terminal device.
When the terminal device is about to enter the coverage area of the target satellite, it can be considered that the terminal device needs to perform an inter-satellite handover, i.e. from the coverage area of one satellite to the coverage area of another satellite. At this time, the network device transmits the first information to the terminal device. Wherein the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite. The target cell may be a ground cell or a satellite cell. Before the inter-satellite switching of the terminal equipment, the network equipment sends the time synchronization error of the target cell to the terminal equipment, and the accuracy of the information can ensure that the time synchronization of the terminal equipment and the target cell is kept within a range of 1/2 CP (Cyclic prefix).
Specifically, the time synchronization error is determined by the network device or the terminal device, and may be determined according to a preset policy or the like.
That is, one way is for the network device to determine the time synchronization error between the terminal device and the target cell. At this time, the network device calculates a first distance between the terminal device and the source satellite at a switching time according to the position information of the terminal device and the position information of the source satellite. Then, the network device calculates a second distance between the terminal device and the target satellite at the switching time according to the position information of the terminal device and the position information of the target satellite. Thereafter, the network device calculates a distance difference between the first distance and the second distance. And finally, the network equipment obtains the time synchronization error between the terminal equipment and the target cell according to the distance difference. And then, the network equipment sends first information to the terminal equipment, wherein the first information comprises the time synchronization error.
Due to satellite motion, the time synchronization error may be inaccurate after a period of time, and for this reason, the network device may periodically update the calculated time synchronization error and notify the terminal device in a signaling manner, so that the terminal device obtains the latest time synchronization error.
Alternatively, the terminal device determines a time synchronization error between the terminal device and the target cell. At this time, the first information includes the position information of the source satellite and the position information of the target satellite at the current time. The current time refers to the time at which the first information is transmitted. Optionally, the first information may further include a time synchronization error between the terminal device and the source satellite, so that the terminal device determines the time synchronization error with the target cell.
In practical applications, the network device may send RRC signaling, such as an rrcrecon configuration (RRC reconfiguration) instruction, to the terminal device through RRC signaling. The first information is included in the RRC signaling. And triggering the terminal equipment to perform inter-planet handover through the sent RRC signaling.
In the embodiment of the application, when the network equipment determines that the terminal equipment needs to perform inter-satellite switching according to the measurement information and the satellite data information reported by the terminal equipment, the network equipment sends first information to the terminal equipment. Wherein the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite. Through the first information, the terminal equipment does not need to switch to the control beam to carry out downlink synchronization when accessing the target cell, but can directly carry out synchronization through the service beam, so by utilizing the scheme of the embodiment of the application, delay caused by beam switching and the like is saved, the flow is shortened, the time is saved, and the inter-satellite switching implementation under the hopping service beam is ensured.
Referring to fig. 2, fig. 2 is a flowchart of an information processing method according to an embodiment of the present application, as shown in fig. 2, including the following steps:
step 201, the terminal device receives first information sent by the network device.
Specifically, the terminal device may receive an RRC signaling sent by the network device, where the RRC signaling includes the first information. Wherein the first information is sent when the network device determines that the terminal device needs to perform inter-planet handover; the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite. And triggering the switching by the terminal equipment according to the received RRC signaling. The RRC signaling may be, for example, an rrcrecon configuration (RRC reconfiguration) instruction or the like.
Step 202, the terminal device adjusts signal timing according to the first information.
If the first information includes a time synchronization error between the terminal device and the target cell, that is, a time synchronization error is determined by a network device, the terminal device may adjust a reception time window and a transmission time window of the terminal device according to the time synchronization error transmitted by the network device.
If the first information includes the position information of the source satellite and the position information of the target satellite, the position information of the source satellite and the position information of the target satellite included in the first information are the position information when the network device sends the first information. Due to satellite motion, signal receiving and transmitting time delay and other reasons, the terminal equipment can determine the position information of the source satellite at the current moment and the position information of the target satellite at the current moment according to the position information of the source satellite and the position information of the target satellite. At this time, the current time refers to a time when the terminal device calculates the position information of the source satellite and the position information of the target satellite. In this way, the time error can be further reduced.
After the position information is obtained, the terminal device calculates a third distance between the terminal device and the source satellite according to the position information of the terminal device at the current moment and the position information of the source satellite at the current moment. And the terminal equipment calculates a fourth distance between the terminal equipment and the target satellite according to the position information of the terminal equipment at the current moment and the position information of the target satellite at the current moment.
Specifically, the terminal device may calculate the distance between the terminal device and the source satellite or the target satellite by using a distance calculation formula under the three-dimensional coordinates.
Where R represents the distance, (x 1, y1, z 1) represents the position coordinates of the source satellite or the target satellite at the current time, and (x 0, y0, z 0) represents the position coordinates of the terminal device at the current time.
And then, the terminal equipment calculates the distance difference between the third distance and the fourth distance, and the time synchronization error between the terminal equipment and the target cell is obtained according to the distance difference. And finally, the terminal equipment adjusts a receiving time window and a transmitting time window of the terminal equipment according to the time synchronization error.
Step 203, signal processing is performed in the target cell according to the adjusted signal timing.
In this step, the downlink signal is received mainly according to the adjusted receiving time window, and/or the uplink signal is sent according to the adjusted transmitting time window.
In the embodiment of the application, when the terminal equipment needs to perform inter-satellite switching, the first information is sent to the terminal equipment so as to assist the terminal equipment to quickly acquire synchronous access in the service beam of the target cell in the switching implementation process, and the situation that the terminal equipment returns to the service beam for implementing switching after acquiring synchronization under the control beam of the target cell is avoided.
As shown in fig. 3, an information processing apparatus according to an embodiment of the present application is applied to a network device, and includes: the processor 300 is configured to read the program in the memory 320, and execute the following procedures:
receiving measurement information reported by terminal equipment;
acquiring satellite data information;
when the terminal equipment is determined to need to perform inter-satellite switching according to the measurement information and the satellite data information, first information is sent to the terminal equipment;
wherein the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
A transceiver 310 for receiving and transmitting data under the control of the processor 300.
Wherein in fig. 3, a bus architecture may comprise any number of interconnected buses and bridges, and in particular, one or more processors represented by processor 300 and various circuits of memory represented by memory 320, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 310 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 may store data used by the processor 300 in performing operations.
The processor 310 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or it may employ a multi-core architecture.
The processor 300 is responsible for managing the bus architecture and general processing, and the memory 320 may store data used by the processor 300 in performing operations.
The measurement information comprises position information of the terminal equipment; the satellite data information comprises position information of a source satellite and position information of a target satellite; the processor 300 is further configured to read the program and perform the following steps:
calculating a first distance between the terminal equipment and the source satellite at the switching moment according to the position information of the terminal equipment and the position information of the source satellite;
calculating a second distance between the terminal equipment and the target satellite at the switching moment according to the position information of the terminal equipment and the position information of the target satellite;
calculating a distance difference between the first distance and the second distance;
obtaining a time synchronization error between the terminal equipment and a target cell according to the distance difference;
And sending first information to the terminal equipment, wherein the first information comprises the time synchronization error.
Optionally, the processor 300 is configured to: and sending RRC signaling to the terminal equipment, wherein the RRC signaling comprises the first information.
It should be noted that, the above device provided in the embodiment of the present application can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.
As shown in fig. 4, an information processing apparatus according to an embodiment of the present application is applied to a terminal device, and includes: the processor 400 is configured to read the program in the memory 420, and execute the following procedures:
receiving first information sent by network equipment;
adjusting a signal timing according to the first information;
according to the adjusted signal time sequence, signal processing is carried out on the target cell;
wherein the first information is sent when the network device determines that the terminal device needs to perform inter-planet handover; the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
A transceiver 410 for receiving and transmitting data under the control of the processor 400.
Wherein in fig. 4, a bus architecture may comprise any number of interconnected buses and bridges, and in particular one or more processors represented by processor 400 and various circuits of memory represented by memory 420, linked together. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. The bus interface provides an interface. Transceiver 410 may be a number of elements, including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 430 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.
The processor 400 is responsible for managing the bus architecture and general processing, and the memory 420 may store data used by the processor 400 in performing operations.
The processor 410 may be a Central Processing Unit (CPU), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a Field programmable gate array (Field-Programmable Gate Array, FPGA) or a complex programmable logic device (Complex Programmable Logic Device, CPLD), or it may employ a multi-core architecture.
The processor is operable to perform any of the methods provided by embodiments of the present application in accordance with the obtained executable instructions by invoking a computer program stored in a memory. The processor and the memory may also be physically separate.
The processor 400 is further configured to read the program, and perform the following steps:
and receiving RRC signaling sent by the network equipment, wherein the RRC signaling comprises the first information.
If the first information comprises a time synchronization error between the terminal device and the target cell, the processor 400 is configured to:
according to the time synchronization error, adjusting a receiving time window and a transmitting time window of the terminal equipment;
and receiving the downlink signal according to the adjusted receiving time window and/or transmitting the uplink signal according to the adjusted transmitting time window.
If the first information includes location information of a source satellite and location information of a target satellite, the processor 400 is configured to:
adjusting signal timing according to the first information, comprising:
determining the position information of the source satellite at the current moment and the position information of the target satellite at the current moment according to the position information of the source satellite and the position information of the target satellite;
Calculating a third distance between the terminal equipment and the source satellite according to the position information of the terminal equipment at the current moment and the position information of the source satellite at the current moment;
calculating a fourth distance between the terminal equipment and the target satellite according to the position information of the terminal equipment at the current moment and the position information of the target satellite at the current moment;
calculating a distance difference between the third distance and the fourth distance;
obtaining a time synchronization error between the terminal equipment and the target cell according to the distance difference;
according to the time synchronization error, adjusting a receiving time window and a transmitting time window of the terminal equipment;
and receiving the downlink signal according to the adjusted receiving time window and/or transmitting the uplink signal according to the adjusted transmitting time window.
It should be noted that, the above device provided in the embodiment of the present application can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.
As shown in fig. 5, an information processing apparatus according to an embodiment of the present application is applied to a network device, and includes:
A first receiving unit 501, configured to receive measurement information reported by a terminal device; a first acquiring unit 502, configured to acquire satellite data information; a first sending unit 503, configured to send first information to the terminal device when it is determined that the terminal device needs to perform inter-satellite handover according to the measurement information and the satellite data information; wherein the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
Optionally, the measurement information includes location information of the terminal device; the satellite data information comprises position information of a source satellite and position information of a target satellite; the first transmitting unit includes:
a first calculating subunit, configured to calculate a first distance between the terminal device and the source satellite at a switching time according to the position information of the terminal device and the position information of the source satellite; a second calculating subunit, configured to calculate a second distance between the terminal device and the target satellite at the switching time according to the position information of the terminal device and the position information of the target satellite; a third calculation subunit for calculating a distance difference between the first distance and the second distance; a fourth calculating subunit, configured to obtain a time synchronization error between the terminal device and the target cell according to the distance difference; and the sending subunit is used for sending first information to the terminal equipment, wherein the first information comprises the time synchronization error.
Optionally, the first sending unit is configured to send RRC signaling to the terminal device, where the RRC signaling includes the first information.
It should be noted that, the above device provided in the embodiment of the present application can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.
As shown in fig. 6, an information processing apparatus according to an embodiment of the present application is applied to a terminal device, and includes:
a first receiving unit 601, configured to receive first information sent by a network device; a first adjusting unit 602, configured to adjust a signal timing according to the first information; a first processing unit 603, configured to perform signal processing on the target cell according to the adjusted signal timing;
wherein the first information is sent when the network device determines that the terminal device needs to perform inter-planet handover; the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
Optionally, the first receiving unit is configured to receive an RRC signaling sent by the network device, where the RRC signaling includes the first information.
Optionally, if the first information includes a time synchronization error between the terminal device and the target cell, the first adjusting unit is configured to adjust a receiving time window and a transmitting time window of the terminal device according to the time synchronization error; the first processing unit is configured to receive the downlink signal according to the adjusted receiving time window and/or send the uplink signal according to the adjusted transmitting time window.
Optionally, if the first information includes location information of a source satellite and location information of a target satellite, the first adjustment unit includes: a first calculating subunit, configured to determine, according to the position information of the source satellite and the position information of the target satellite, the position information of the source satellite at the current time and the position information of the target satellite at the current time; a second calculating subunit, configured to calculate a third distance between the terminal device and the source satellite according to the location information of the terminal device at the current time and the location information of the source satellite at the current time; a third calculating subunit, configured to calculate a fourth distance between the terminal device and the target satellite according to the position information of the terminal device at the current time and the position information of the target satellite at the current time; a fourth calculation subunit configured to calculate a distance difference between the third distance and the fourth distance; a fifth calculating subunit, configured to obtain a time synchronization error between the terminal device and the target cell according to the distance difference; an adjusting subunit, configured to adjust a receiving time window and a transmitting time window of the terminal device according to the time synchronization error; the first processing unit is configured to receive a downlink signal according to the adjusted receiving time window and/or send an uplink signal according to the adjusted transmitting time window.
It should be noted that, the above device provided in the embodiment of the present application can implement all the method steps implemented in the method embodiment and achieve the same technical effects, and detailed descriptions of the same parts and beneficial effects as those in the method embodiment in this embodiment are omitted.
It should be noted that, in the embodiment of the present application, the division of the units is schematic, which is merely a logic function division, and other division manners may be implemented in actual practice. In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a processor-readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
The embodiment of the application also provides a readable storage medium, and a program is stored on the readable storage medium, and when the program is executed by a processor, the program realizes the processes of the embodiment of the information processing method, and can achieve the same technical effects, so that repetition is avoided, and the description is omitted here. The readable storage medium may be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memories (e.g., floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc.), optical memories (e.g., CD, DVD, BD, HVD, etc.), semiconductor memories (e.g., ROM, EPROM, EEPROM, nonvolatile memories (NAND FLASH), solid State Disks (SSD)), etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. In light of such understanding, the technical solutions of the present application may be embodied essentially or in part in the form of a software product stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a cell phone, computer, server, air conditioner, or network device, etc.) to perform the methods described in the various embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (17)
1. An information processing method, characterized by comprising:
the network equipment receives measurement information reported by the terminal equipment;
the network equipment acquires satellite data information;
when the terminal equipment is determined to need to perform inter-satellite switching according to the measurement information and the satellite data information, the network equipment sends first information to the terminal equipment;
wherein the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
2. The method according to claim 1, wherein the measurement information comprises location information of the terminal device; the satellite data information comprises position information of a source satellite and position information of a target satellite;
if the first information includes a time synchronization error between the terminal device and a target cell, the network device sends the first information to the terminal device, including:
the network equipment calculates a first distance between the terminal equipment and the source satellite at the switching moment according to the position information of the terminal equipment and the position information of the source satellite;
The network equipment calculates a second distance between the terminal equipment and the target satellite at the switching moment according to the position information of the terminal equipment and the position information of the target satellite;
the network device calculates a distance difference between the first distance and the second distance;
the network equipment obtains a time synchronization error between the terminal equipment and a target cell according to the distance difference;
the network device sends first information to the terminal device, wherein the first information comprises the time synchronization error.
3. The method of claim 1, wherein the network device sending the first information to the terminal device comprises:
the network device sends Radio Resource Control (RRC) signaling to the terminal device, wherein the RRC signaling comprises the first information.
4. An information processing method, characterized by comprising:
the terminal equipment receives first information sent by the network equipment;
the terminal equipment adjusts signal time sequence according to the first information;
according to the adjusted signal time sequence, signal processing is carried out on the target cell;
wherein the first information is sent when the network device determines that the terminal device needs to perform inter-planet handover; the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
5. The method of claim 4, wherein the terminal device receives the first information sent by the network device, comprising:
and the terminal equipment receives the RRC signaling sent by the network equipment, wherein the RRC signaling comprises the first information.
6. The method of claim 4, wherein if the first information includes a time synchronization error between the terminal device and the target cell, the terminal device adjusts a signal timing according to the first information, comprising:
the terminal equipment adjusts a receiving time window and a transmitting time window of the terminal equipment according to the time synchronization error;
and performing signal processing on the target cell according to the adjusted signal time sequence, including:
and receiving the downlink signal according to the adjusted receiving time window and/or transmitting the uplink signal according to the adjusted transmitting time window.
7. The method of claim 4, wherein if the first information includes position information of a source satellite and position information of a target satellite, the terminal device adjusts signal timing according to the first information, comprising:
the terminal equipment determines the position information of the source satellite at the current moment and the position information of the target satellite at the current moment according to the position information of the source satellite and the position information of the target satellite;
The terminal equipment calculates a third distance between the terminal equipment and the source satellite according to the position information of the terminal equipment at the current moment and the position information of the source satellite at the current moment;
the terminal equipment calculates a fourth distance between the terminal equipment and the target satellite according to the position information of the terminal equipment at the current moment and the position information of the target satellite at the current moment;
the terminal equipment calculates a distance difference between the third distance and the fourth distance;
the terminal equipment obtains a time synchronization error between the terminal equipment and the target cell according to the distance difference;
the terminal equipment adjusts a receiving time window and a transmitting time window of the terminal equipment according to the time synchronization error;
and performing signal processing on the target cell according to the adjusted signal time sequence, including:
and receiving the downlink signal according to the adjusted receiving time window and/or transmitting the uplink signal according to the adjusted transmitting time window.
8. An information processing apparatus, applied to a network device, comprising a memory, a transceiver, and a processor:
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
Receiving measurement information reported by terminal equipment;
acquiring satellite data information;
when the terminal equipment is determined to need to perform inter-satellite switching according to the measurement information and the satellite data information, first information is sent to the terminal equipment;
wherein the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
9. The apparatus of claim 8, wherein the measurement information comprises location information of the terminal device; the satellite data information comprises position information of a source satellite and position information of a target satellite;
if the first information includes a time synchronization error between the terminal device and a target cell, the processor is configured to:
calculating a first distance between the terminal equipment and the source satellite at the switching moment according to the position information of the terminal equipment and the position information of the source satellite;
calculating a second distance between the terminal equipment and the target satellite at the switching moment according to the position information of the terminal equipment and the position information of the target satellite;
Calculating a distance difference between the first distance and the second distance;
obtaining a time synchronization error between the terminal equipment and a target cell according to the distance difference;
and sending first information to the terminal equipment, wherein the first information comprises the time synchronization error.
10. The apparatus of claim 8, wherein the processor is configured to: and sending RRC signaling to the terminal equipment, wherein the RRC signaling comprises the first information.
11. An information processing apparatus, applied to a terminal device, characterized by comprising a memory, a transceiver, and a processor:
a memory for storing a computer program; a transceiver for transceiving data under control of the processor; a processor for reading the computer program in the memory and performing the following operations:
receiving first information sent by network equipment;
adjusting a signal timing according to the first information;
according to the adjusted signal time sequence, signal processing is carried out on the target cell;
wherein the first information is sent when the network device determines that the terminal device needs to perform inter-planet handover; the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
12. The apparatus of claim 11, wherein the processor is configured to:
and receiving RRC signaling sent by the network equipment, wherein the RRC signaling comprises the first information.
13. The apparatus of claim 11, wherein if the first information comprises a time synchronization error between the terminal device and the target cell, the processor is configured to:
according to the time synchronization error, adjusting a receiving time window and a transmitting time window of the terminal equipment;
and receiving the downlink signal according to the adjusted receiving time window and/or transmitting the uplink signal according to the adjusted transmitting time window.
14. The apparatus of claim 11, wherein if the first information includes location information of a source satellite and location information of a target satellite, the processor is configured to:
adjusting signal timing according to the first information, comprising:
determining the position information of the source satellite at the current moment and the position information of the target satellite at the current moment according to the position information of the source satellite and the position information of the target satellite;
calculating a third distance between the terminal equipment and the source satellite according to the position information of the terminal equipment at the current moment and the position information of the source satellite at the current moment;
Calculating a fourth distance between the terminal equipment and the target satellite according to the position information of the terminal equipment at the current moment and the position information of the target satellite at the current moment;
calculating a distance difference between the third distance and the fourth distance;
obtaining a time synchronization error between the terminal equipment and the target cell according to the distance difference;
according to the time synchronization error, adjusting a receiving time window and a transmitting time window of the terminal equipment;
and receiving the downlink signal according to the adjusted receiving time window and/or transmitting the uplink signal according to the adjusted transmitting time window.
15. An information processing apparatus applied to a network device, comprising:
the first receiving unit is used for receiving measurement information reported by the terminal equipment;
the first acquisition unit is used for acquiring satellite data information;
the first sending unit is used for sending first information to the terminal equipment when the terminal equipment is determined to need to perform inter-satellite switching according to the measurement information and the satellite data information;
wherein the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
16. An information processing apparatus applied to a terminal device, comprising:
the first receiving unit is used for receiving first information sent by the network equipment;
a first adjusting unit for adjusting a signal timing according to the first information;
the first processing unit is used for performing signal processing on the target cell according to the adjusted signal time sequence;
wherein the first information is sent when the network device determines that the terminal device needs to perform inter-planet handover; the first information includes a time synchronization error between the terminal device and the target cell, or the first information includes position information of a source satellite and position information of a target satellite.
17. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing the processor to execute the method of any one of claims 1 to 3; or the computer program for causing the processor to perform the method of any one of claims 4 to 7.
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