CN111371487B - Data transmission method and device based on satellite system, storage medium, UE (user Equipment) and base station - Google Patents

Data transmission method and device based on satellite system, storage medium, UE (user Equipment) and base station Download PDF

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CN111371487B
CN111371487B CN202010163073.8A CN202010163073A CN111371487B CN 111371487 B CN111371487 B CN 111371487B CN 202010163073 A CN202010163073 A CN 202010163073A CN 111371487 B CN111371487 B CN 111371487B
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pur
configuration information
current cell
time period
data transmission
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CN111371487A (en
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顾祥新
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Spreadtrum Communications Shanghai Co Ltd
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Spreadtrum Communications Shanghai Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18532—Arrangements for managing transmission, i.e. for transporting data or a signalling message
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18539—Arrangements for managing radio, resources, i.e. for establishing or releasing a connection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18545—Arrangements for managing station mobility, i.e. for station registration or localisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/14—Relay systems
    • H04B7/15—Active relay systems
    • H04B7/185—Space-based or airborne stations; Stations for satellite systems
    • H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
    • H04B7/18558—Arrangements for managing communications, i.e. for setting up, maintaining or releasing a call between stations
    • 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
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/02—Services making use of location information
    • H04W4/029—Location-based management or tracking services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Astronomy & Astrophysics (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • General Physics & Mathematics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

A data transmission method and device based on a satellite system, a storage medium, UE and a base station are provided, the method comprises the following steps: receiving PUR configuration information, wherein wireless resources configured by the PUR configuration information correspond to a group of cells; and initiating the PUR transmission according to the PUR configuration information. By the method, the PURs of a plurality of cells can be configured through one PUR configuration information, the UE does not need to be configured with the PURs from cell to cell, and the PUR configuration amount of the UE is greatly reduced.

Description

Data transmission method and device based on satellite system, storage medium, UE (user Equipment) and base station
Technical Field
The invention relates to the field of communication, in particular to a data transmission method and device based on a satellite system, a storage medium, UE (user equipment) and a base station.
Background
The 3GPP RP #86 clause FS _ IoT _ NTN is a research on supporting narrowband Internet (Narrow Band Internet of Things, NB-IoT for short) and Internet of Things (eMTC for short) services in a satellite system.
In a medium-low altitude satellite system, a cell is under a ground moving scene, the visible time of one beam to UE is very short, taking a cell with an altitude of 1200km and a satellite diameter of 60km as an example, the visible time of a single beam to UE is 11s, and one cell is composed of one beam or a plurality of adjacent beams. The time required for completing one time of sending UpLink (UpLink, UL) pre-configured UpLink Resource (PUR) transport blocks is relatively long, and the ratio of occupying visible time of a corresponding cell may be relatively high.
The NB-IoT terminal is not provided with a satellite parabolic antenna and a direction tracking system, a single carrier wave of 3.75kHz or even lower is needed for uplink by using a common omnidirectional antenna, so the duration of a transmission block is longer, and one transmission of one PUR transmission block by using a single carrier wave of 3.75kHz in NB-IoT needs to last for 32 ms. And the signal of the satellite system is weak, the height of a 1200km satellite can reach about-140 dbm, the signal of one transmission block needs to be repeated for hundreds of times, and the whole transmission duration of one uplink transmission block can reach about 5 seconds. The cycle time (Round Trip time, RTT for short) of the satellite system is relatively large, the communication process is further lengthened, and one PUR transmission and the HARQ ACK process thereof may reach about 6 seconds.
In the prior art, a PUR configured for a UE is generally only available for one cell, that is, a per cell (per cell) PUR, and in the above scenario, if the UE cannot complete data transmission in the cell, the PUR may fail, and a PUR of another cell needs to be configured for the UE. Considering the period of the PUR, tens of hundreds of per-cell PUR configurations may be required, and the configuration amount is large.
Disclosure of Invention
The technical problem solved by the invention is how to avoid transmission interruption and data loss caused by cell reselection when UE transmits data.
In order to solve the above technical problem, an embodiment of the present invention provides a data transmission method based on a satellite system, where the method includes: receiving PUR configuration information, wherein wireless resources configured by the PUR configuration information correspond to a group of cells; and initiating the PUR transmission according to the PUR configuration information.
Optionally, a configuration mode of a group of cells corresponding to the radio resources configured by the PUR configuration information is display configuration or implicit configuration; and when the configuration mode is implicit configuration, the group of cells comprises all cells which pass through the UE and can provide the wireless resources configured in the PUR configuration information.
Optionally, the initiating a PUR transmission in a corresponding cell according to the PUR configuration information includes: when the UE needs to transmit data, identifying whether a current cell where the UE is located is in a group of cells corresponding to the PUR configuration information, and if so, judging whether the data transmission can be completed in the current cell according to the PUR configuration information; and if the data transmission can be completed in the current cell, initiating the PUR transmission.
Optionally, the determining whether data transmission can be completed in the current cell according to the PUR configuration information includes: obtaining the time period for the UE to reside in the current cell; obtaining a PUR process time period, wherein the PUR process time period comprises a time period occupied by PUR uplink transmission and HARQ ACK corresponding to the PUR uplink transmission; and if the PUR process time period is covered by the time period of the UE residing in the current cell, judging that the data transmission can be completed in the current cell.
Optionally, the obtaining the time period for the UE to camp on the current cell includes: obtaining the relation between the motion trail and the time of the current cell; and calculating the time period for the UE to reside in the current cell according to the position of the UE, the motion trail of the current cell and the time relation.
Optionally, the obtaining the time period for the UE to camp on the current cell includes: obtaining the relation between the motion trail and the time of the current cell; and calculating the time period for the UE to reside in the current cell according to the starting time for the UE to reside in the current cell, the motion trail of the current cell and the time relationship.
Optionally, the obtaining the relationship between the motion trajectory and the time of the current cell includes: determining a satellite where the target cell is located according to the distribution data of the satellite cells; acquiring ephemeris data of a satellite in which a target cell is located; and obtaining the relation between the motion trail and the time of the target cell according to the ephemeris data of the satellite where the target cell is located and the distribution data of the satellite cell.
Optionally, the obtaining the PUR process time period includes: and obtaining the uplink resource authorization of the PUR according to the PUR configuration information, and calculating the time period occupied by the uplink transmission of the PUR and the HARQ ACK corresponding to the uplink transmission of the PUR.
Optionally, after determining whether data transmission can be completed in the current cell according to the PUR configuration information, the method further includes: if the data transmission can not be completed in the current cell, after the current cell is reselected to another cell, taking the new cell as the current cell; and continuing to identify whether the current cell where the UE is located is in a group of cells corresponding to the PUR configuration information, and if so, judging whether data transmission can be completed in the current cell according to the PUR configuration information.
The embodiment of the invention also provides a data transmission method based on the satellite system, which comprises the following steps: generating PUR configuration information, wherein the wireless resources configured by the PUR configuration information correspond to a group of cells; and distributing the PUR configuration information to UE (user equipment) so that the UE can initiate PUR transmission according to the PUR configuration information.
Optionally, a configuration mode of a group of cells corresponding to the radio resources configured by the PUR configuration information is display configuration or implicit configuration; and when the configuration mode is implicit configuration, the group of cells comprises all cells which pass through the UE and can provide the wireless resources configured in the PUR configuration information.
Optionally, when the UE needs to transmit data, identifying whether a current cell where the UE is located is in a group of cells corresponding to the PUR configuration information, and determining whether data transmission can be completed in the current cell according to the PUR configuration information, and if data transmission can be completed in the current cell, initiating the PUR transmission.
Optionally, the method further includes: and if the UE cannot use the wireless resources configured by the PUR configuration information in the current cell, the PUR configuration allocation information is sent to other UEs.
The embodiment of the invention also provides a data transmission device based on the satellite system, and the device comprises: a PUR configuration information receiving module, configured to receive PUR configuration information, where a radio resource configured by the PUR configuration information corresponds to a group of cells; and the PUR transmission module is used for initiating the PUR transmission according to the PUR configuration information.
The embodiment of the invention also provides a data transmission device based on the satellite system, and the device comprises: the system comprises a PUR configuration information generation module, a PUR configuration information generation module and a PUR configuration information generation module, wherein the wireless resources configured by the PUR configuration information correspond to a group of cells; and the PUR configuration information distribution module is used for distributing the PUR configuration information to the UE so that the UE can initiate PUR transmission according to the PUR configuration information.
Embodiments of the present invention also provide a storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the above method.
The embodiment of the invention also provides the UE, which comprises a memory and a processor, wherein the memory stores the computer program, and the processor realizes the steps of the method when executing the computer program.
The embodiment of the invention also provides a base station, which comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the method when executing the computer program.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a data transmission method based on a satellite system, which comprises the following steps: receiving PUR configuration information, wherein wireless resources configured by the PUR configuration information correspond to a group of cells; and initiating the PUR transmission according to the PUR configuration information. Compared with the prior art, in the scheme of the invention, the radio resources configured by a single PUR can be used in a group of cells, the frequencies of the group of cells can be in the same frequency band, and the UE can initiate PUR transmission in the group of cells available to the UE according to the configured PUR so as to transmit data. Therefore, the PURs of a plurality of cells can be configured through one PUR configuration information, the PURs do not need to be configured cell by cell, and the PUR configuration amount of the UE is greatly reduced.
Further, before the UE initiates the PUR transmission, it is determined whether the configured PUR can be used in the current cell, and if the configured PUR can be used, it is determined whether the configured PUR can be used in the current cell, and the UE initiates the PUR transmission only when it predicts that the configured PUR can complete the data transmission in the current cell. Therefore, the cell reselection of the UE in the PUR transmission process can be avoided, and data loss is avoided, so that the integrity of data in the PUR transmission process is ensured.
Further, whether the UE can complete data transmission in the current cell is judged according to whether the time period of the PUR process is covered by the time period of the UE residing in the current cell, so that whether the PUR transmission needs to be initiated is accurately judged.
Further, for the UE with positioning function and the UE without positioning function, the time period in which the UE resides in the current cell may be obtained according to different methods, respectively, and regardless of whether the UE has positioning function, the time period in which the UE resides in the current cell may be obtained, so as to determine whether the PUR transmission may be completed in the current cell.
Further, when the UE determines that data transmission cannot be completed in the current cell, the UE does not initiate PUR transmission. And after the UE reselects a cell which is available for wireless resources and configured by the PUR configuration information and can finish data transmission in the cell, the UE sends out the PUR transmission again. Thus, successful transmission of the UE PUR can be ensured.
The embodiment of the invention also provides a data transmission method based on the satellite system, which comprises the following steps: generating PUR configuration information, wherein the wireless resources configured by the PUR configuration information correspond to a group of cells; and distributing the PUR configuration information to UE (user equipment) so that the UE can initiate PUR transmission according to the PUR configuration information. Compared with the prior art, the base station of the cell can generate the PUR configuration information which can be used for configuring the wireless resources of a group of cells, and the generated PUR configuration information is sent to the corresponding UE according to the cell where each UE is located, the UE which is going to pass through, the data transmission requirements of the UE and other factors, so that the received UE can initiate PUR transmission.
Further, the network may obtain that a certain UE does not use the allocated PUR configuration in some cells according to the location of the UE or the cell in which the UE is currently located, and may allocate the PUR configuration that the certain UE does not use to other UEs, thereby making reasonable use of wireless resources.
Drawings
Fig. 1 is a schematic flow chart of a data transmission method based on a satellite system according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for transmitting data based on a satellite system according to an embodiment of the present invention;
FIG. 3 is a schematic flow chart of another method for transmitting data based on a satellite system according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a data transmission apparatus based on a satellite system according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of another data transmission apparatus based on a satellite system according to an embodiment of the present invention.
Detailed Description
As can be seen from the background art, the technical problem in the prior art is that the amount of PUR configuration for a UE is large in a scenario where a cell moves on the ground.
In order to solve the problem, an embodiment of the present invention provides a data transmission method based on a satellite system, where the method includes: receiving PUR configuration information, wherein wireless resources configured by the PUR configuration information correspond to a group of cells; and initiating the PUR transmission according to the PUR configuration information.
By the method, the radio resources of a group of cells can be configured through single PUR configuration information, so that the PUR configuration amount of the UE is effectively reduced.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
To solve the above technical problem, an embodiment of the present invention provides a data transmission method based on a satellite system, please refer to fig. 1, the method includes the following steps:
step S101, receiving PUR configuration information, wherein wireless resources configured by the PUR configuration information correspond to a group of cells;
the PUR configuration information is information of a PUR which is sent to the UE by the network and used for configuring the UE end to carry out data transmission, and the wireless resources configured by the UE according to the received PUR configuration information can be used in a group of cells.
Optionally, the PUR configuration information may be allocated to each UE according to a data transmission requirement of each UE after being configured by the network.
Optionally, the PUR configuration information may be sent to the UE by a base station of a cell through which the UE passes.
And along with the movement of the satellite, the position of the cell corresponding to the satellite is changed.
And step S102, initiating PUR transmission according to the PUR configuration information.
When UE wants to use PUR to transmit data, it initiates PUR transmission in a group of cells corresponding to the UE according to the PUR configuration information to transmit data.
By the scheme, for the situation that the cells move on the ground, the wireless resources configured by a single PUR can be used in a group of cells, the frequencies of the group of cells can be in the same frequency band, and the UE can initiate PUR transmission in the group of cells available to the UE according to the configured PUR so as to transmit data. Therefore, the PURs of a plurality of cells can be configured through one PUR configuration information, the PURs do not need to be configured cell by cell, and the PUR configuration amount of the UE is greatly reduced.
Optionally, a configuration mode of a group of cells corresponding to the radio resources configured by the PUR configuration information is display configuration or implicit configuration; and when the configuration mode is implicit configuration, the group of cells comprises all cells which pass through the UE and can provide the wireless resources configured in the PUR configuration information.
The configuration mode between the radio resource configured by the PUR configuration information and the cell available to the radio resource may be explicit configuration or implicit configuration. The explicit configuration information includes cell identifiers that can be used by the PUR configuration information, and if the identifier of a certain cell is included in the PUR configuration information, the radio resources corresponding to the PUR configuration information can be used in the cell. The implicit configuration does not include the cell identifier that can be used by the cell in the PUR configuration, and if the time-frequency domain radio resource of the cell includes the radio resource in the PUR configuration, the PUR configuration information can be used in the cell.
In an embodiment, the initiating, in step S102 in fig. 1, a PUR transmission in a corresponding cell according to the PUR configuration may include: when the UE needs to transmit data, identifying whether a current cell where the UE is located is in a group of cells corresponding to the PUR configuration information, and if so, judging whether the data transmission can be completed in the current cell according to the PUR configuration information; and if the data transmission can be completed in the current cell, initiating the PUR transmission.
In step S102, if the UE wants to transmit data, it is first identified whether the current cell of the UE can use the radio resource configured by the PUR configuration information, that is, whether the current cell of the UE is included in a group of cells corresponding to the received PUR configuration information, and if so, the UE can transmit data in the current cell through the PUR.
With the relative movement of the satellite and the earth, the coverage area of the corresponding cell on the ground may change, and the time for completing one-time PUR transmission block is long, so that the UE may not complete the transmission of the PUR transmission block in the current cell. If the UE performs cell reselection during the sending of the PUR transport block, data loss may be caused.
In order to avoid the above situation, the UE may determine whether data transmission can be completed in the current cell before initiating the PUR transmission, and if so, initiate the PUR transmission; if not, the PUR transmission can be initiated again when the UE reselects to other cells.
In this embodiment, before the UE initiates the PUR transmission, it is determined whether the configured PUR can be used in the current cell, and if the configured PUR can be used, it is determined whether the configured PUR can complete data transmission in the current cell. Therefore, the cell reselection of the UE in the PUR transmission process can be avoided, and data loss is avoided, so that the integrity of data in the PUR transmission process is ensured.
Referring to fig. 2, the above-mentioned determining whether data transmission can be completed in the current cell according to the PUR configuration information may include the following steps S201 to S203, where:
step S201, obtaining the time period of UE residing in the current cell;
the time period for the UE to camp on the current cell is how long the UE may also camp on the current cell before initiating the PUR transmission.
The cell moves with the satellite, the motion condition of the satellite, such as the running track of the satellite and the distance lamp between the satellite and the ground, can be obtained according to the ephemeris data, the movement of the cell/beam is also known since the movement of the satellite is known in advance, and the UE can calculate the time period of residing in the current cell according to the movement condition of the cell.
Alternatively, the UE moving speed may be negligible relative to the moving speed of the cell/beam on the ground as the satellite moves, and only the mobility caused by the cell movement needs to be considered.
Step S202, obtaining a PUR process time period, wherein the PUR process time period comprises a time period occupied by PUR uplink transmission and HARQ ACK corresponding to the PUR uplink transmission;
the period of the PUR process time is a time for sending a PUR transmission block, and includes, in addition to the time for uplink transmission of the PUR, a time for receiving an Acknowledgement Character (ACK) of a Hybrid Automatic Repeat reQuest (HARQ) returned from an uplink, and the UE obtains the period of the PUR process time to predict a time required for transmission of the PUR at this time.
Step S203, if the PUR procedure time period is covered by the time period in which the UE resides in the current cell, it is determined that data transmission can be completed in the current cell.
If the period of time of the PUR process is included in the period of time of the UE residing in the current cell, the UE may complete the data transmission in the current cell, and the UE may initiate the PUR transmission.
Optionally, if a part of the period of the PUR procedure is not covered by the period of time in which the UE resides in the current cell, the UE cannot complete data transmission in the current cell and cannot initiate PUR transmission.
In this embodiment, whether the UE can complete data transmission in the current cell is determined according to whether the period of time of the PUR process is covered by the period of time in which the UE resides in the current cell, so as to accurately determine whether to initiate the PUR transmission.
In an embodiment, please continue to refer to fig. 2, the obtaining the time period for the UE to camp on the current cell in step S201 may include: obtaining the relation between the motion trail and the time of the current cell; and calculating the time period for the UE to reside in the current cell according to the position of the UE, the motion trail of the current cell and the time relation.
The relation between the motion track and the time of the current cell in a period of time in the future can be predicted according to the running condition of the satellite, and for the UE with the positioning function, the time period in which the position can also reside in the current cell can be judged according to the position of the UE, so that the time period in which the UE resides in the current cell is obtained.
In one embodiment, the obtaining the time period for the UE to camp on the current cell includes: obtaining the relation between the motion trail and the time of the current cell; and calculating the time period for the UE to reside in the current cell according to the starting time for the UE to reside in the current cell, the motion trail of the current cell and the time relationship.
For the UE without the positioning function, the time period for the UE to reside in the current cell due to the cell movement can be estimated according to the starting time for the UE to enter the current cell.
Since the relative movement speed of the cell and the ground is fast, the relative movement of the UE to the ground can be ignored, i.e. the UE is considered to be relatively stationary with respect to the ground, and the relative movement between the UE and the cell is determined by the cell movement.
In the above embodiment, the time period in which the UE with the positioning function resides in the current cell may be obtained according to different methods for the UE with the positioning function and the UE without the positioning function, and whether the UE has the positioning function or not may be determined by obtaining the time period in which the UE resides in the current cell, so as to determine whether the PUR transmission can be completed in the current cell.
Optionally, the obtaining the relationship between the motion trajectory and the time of the current cell includes: determining a satellite where the target cell is located according to the distribution data of the satellite cells; acquiring ephemeris data of a satellite in which a target cell is located; and obtaining the relation between the motion trail and the time of the target cell according to the ephemeris data of the satellite where the target cell is located and the distribution data of the satellite cell.
The ephemeris data is the orbit parameter and the position time relation of the satellite, and the position of the satellite corresponding to any moment can be calculated according to the ephemeris data. The satellite cell distribution data is data of a distribution map of a cell under the satellite, and comprises cell shape and size and relative positions of the cells, and the motion trail and time relation of the target cell can be determined according to ephemeris data of the satellite corresponding to the target cell and the cell distribution data of the satellite.
Optionally, the cell distribution map data of the satellite may be included in the ephemeris data or may be included in another data. Optionally, with continuing reference to fig. 2, obtaining the PUR procedure time period in step S202 may include: and obtaining the uplink resource authorization of the PUR according to the PUR configuration information, and calculating the time period occupied by the uplink transmission of the PUR and the HARQ ACK corresponding to the uplink transmission of the PUR.
After obtaining the PUR configuration information, the UE may request for PUR uplink resource authorization according to the PUR configuration information, so as to calculate a time period occupied by HARQ ACK corresponding to the PUR uplink transmission machine according to the PUR uplink resource.
In an embodiment, after determining whether data transmission can be completed in the current cell according to the PUR configuration information, the method further includes: if the data transmission can not be completed in the current cell, after the current cell is reselected to another cell, taking the new cell as the current cell; and continuing to identify whether the current cell where the UE is located is in a group of cells corresponding to the PUR configuration information, and if so, judging whether data transmission can be completed in the current cell according to the PUR configuration information.
And when the UE judges that the data transmission can not be completed in the current cell, not initiating the PUR transmission. And when the UE reselects to another cell, at the moment, the reselected cell is a new cell, the UE takes the new cell as the current cell, and the step of identifying whether the current cell where the UE is located is in a group of cells corresponding to the PUR configuration information and judging whether data transmission can be completed in the current cell according to the PUR configuration information is executed again until the UE reselects to a cell available for wireless resources configured by the PUR configuration information and the UE can complete data transmission in the cell, and then the UE initiates the PUR transmission. Thus, successful transmission of the UE PUR can be ensured.
An embodiment of the present invention further provides a data transmission method based on a satellite system, please refer to fig. 3, where the method includes:
step S301, generating PUR configuration information, wherein the wireless resources configured by the PUR configuration information correspond to a group of cells;
step S302, the PUR configuration information is distributed to UE, so that the UE can initiate PUR transmission according to the PUR configuration information.
For a base station of a cell, PUR configuration information that can be used to configure radio resources of a group of cells may be generated, and according to factors such as a cell in which each UE is located, UEs that will pass through, and data transmission requirements of the UEs, the generated PUR configuration information may be sent to the corresponding UEs, so that the received UEs may initiate PUR transmission according to the steps in fig. 1.
Optionally, a configuration mode of a group of cells corresponding to the radio resources configured by the PUR configuration information is display configuration or implicit configuration; and when the configuration mode is implicit configuration, the group of cells comprises all cells which pass through the UE and can provide the wireless resources configured in the PUR configuration information.
In an embodiment, when the UE needs to transmit data, it identifies whether a current cell where the UE is located is in a group of cells corresponding to the PUR configuration information, and determines whether data transmission can be completed in the current cell according to the PUR configuration information, and if data transmission can be completed in the current cell, initiates the PUR transmission.
In one embodiment, the method further comprises: and if the UE cannot use the wireless resources configured by the PUR configuration information in the current cell, the PUR configuration allocation information is sent to other UEs.
Based on the rules of fig. 1 and 2 for the UE to perform the PUR transmission, the network may obtain, according to the location of the UE or the cell where the UE is currently located, that a certain UE does not use the allocated PUR configuration in some cells, and may allocate the PUR configuration that the certain UE cannot use to other UEs, thereby reasonably utilizing the wireless resources.
The data transmission method based on the satellite system in fig. 3 may be implemented by the base station, and more contents of the working principle and the working mode thereof may refer to the description related to the base station or the network side in fig. 1 and fig. 2, which is not described herein again.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a data transmission apparatus based on a satellite system, the apparatus including:
a PUR configuration information receiving module 401, configured to receive PUR configuration information, where a radio resource configured by the PUR configuration information corresponds to a group of cells;
a PUR transmission module 402, configured to initiate PUR transmission according to the PUR configuration information.
For more details of the working principle and the working mode of the data transmission apparatus based on the satellite system in fig. 4, reference may be made to the related description in fig. 1 and fig. 2, and further description is omitted here.
Referring to fig. 5, fig. 5 is a schematic structural diagram of a data transmission apparatus based on a satellite system, the apparatus including:
a PUR configuration information generating module 501, configured to generate PUR configuration information, where a radio resource configured by the PUR configuration information corresponds to a group of cells;
a PUR configuration information allocating module 502, configured to allocate the PUR configuration information to a UE, so that the UE initiates PUR transmission according to the PUR configuration information.
For more details on the working principle and working mode of the data transmission device based on the satellite system, reference may be made to the related description in fig. 3, which is not repeated here.
It should be noted that the technical solution of the present invention is applicable to a 5G (5Generation) communication system, a 4G communication system, a 3G communication system, and various future new communication systems, such as 6G, 7G, and the like.
The embodiment of the invention also provides a storage medium, wherein computer instructions are stored on the storage medium, and the computer instructions execute the steps of the method when running. The storage medium may be a computer-readable storage medium, and may include, for example, a non-volatile (non-volatile) or non-transitory (non-transitory) memory, and may further include an optical disc, a mechanical hard disk, a solid state hard disk, and the like.
Specifically, in the embodiment of the present invention, the processor may be a Central Processing Unit (CPU), and the processor may also be other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
It will also be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile memory may be a read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile memory can be Random Access Memory (RAM), which acts as external cache memory. By way of example and not limitation, many forms of Random Access Memory (RAM) are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM), SDRAM (SLDRAM), synchlink DRAM (SLDRAM), and direct bus RAM (DR RAM).
The embodiment of the present invention further provides a UE, which includes a memory and a processor, where the memory stores computer instructions capable of running on the processor, and the processor executes the computer instructions to perform the steps of the methods shown in fig. 1 and fig. 2. The terminal includes, but is not limited to, a mobile phone, a computer, a tablet computer and other terminal devices.
Specifically, a terminal in this embodiment may refer to various forms of User Equipment (UE), an access terminal, a subscriber unit, a subscriber station, a mobile station (mobile station, MS), a remote station, a remote terminal, a mobile device, a user terminal, a terminal device (terminal device), a wireless communication device, a user agent, or a user equipment. The terminal device may also be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device with a Wireless communication function, a computing device or other processing devices connected to a Wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a future 5G Network or a terminal device in a future evolved Public Land Mobile Network (PLMN), and the like, which is not limited in this embodiment.
The embodiment of the present invention further provides a base station, which includes a memory and a processor, where the memory stores computer instructions capable of being executed on the processor, and the processor executes the computer instructions to execute the steps of the method shown in fig. 3.
A Base Station (BS) in the embodiment of the present application, which may also be referred to as a base station device, is a device deployed in a Radio Access Network (RAN) to provide a wireless communication function. For example, a device providing a base station function in a 2G network includes a Base Transceiver Station (BTS), a device providing a base station function in a 3G network includes a node b (nodeb), apparatuses for providing a base station function in a 4G network include evolved node bs (enbs), which, in a Wireless Local Area Network (WLAN), the devices providing the base station function are an Access Point (AP), a device gNB providing the base station function in a New Radio (NR) of 5G, and a node B (ng-eNB) continuing to evolve, the gNB and the terminal communicate with each other by adopting an NR (NR) technology, the ng-eNB and the terminal communicate with each other by adopting an E-UTRA (evolved Universal Terrestrial Radio Access) technology, and both the gNB and the ng-eNB can be connected to a 5G core network. The base station in the embodiment of the present application also includes a device and the like that provide a function of the base station in a future new communication system.
The base station controller in the embodiment of the present application is a device for managing a base station, for example, a Base Station Controller (BSC) in a 2G network, a Radio Network Controller (RNC) in a 3G network, or a device for controlling and managing a base station in a future new communication system.
The network on the network side in the embodiment of the present invention refers to a communication network providing communication services for a terminal, and includes a base station of a radio access network, a base station controller of the radio access network, and a device on the core network side.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (15)

1. A method for data transmission based on a satellite system, the method comprising:
receiving PUR configuration information, wherein wireless resources configured by the PUR configuration information correspond to a group of cells;
initiating PUR transmission according to the PUR configuration information;
when the UE needs to transmit data, identifying whether a current cell where the UE is located is in a group of cells corresponding to the PUR configuration information, if so, judging whether data transmission can be completed in the current cell according to the PUR configuration information, and if so, initiating the PUR transmission;
the determining whether data transmission can be completed in the current cell according to the PUR configuration information includes:
obtaining the time period for the UE to reside in the current cell;
obtaining a PUR process time period, wherein the PUR process time period comprises a time period occupied by PUR uplink transmission and HARQ ACK corresponding to the PUR uplink transmission;
and if the PUR process time period is covered by the time period of the UE residing in the current cell, judging that the data transmission can be completed in the current cell.
2. The method of claim 1, wherein the configuration mode of the group of cells corresponding to the radio resources configured by the PUR configuration information is explicit configuration or implicit configuration;
and when the configuration mode is implicit configuration, the group of cells comprises all cells which pass through the UE and can provide the wireless resources configured in the PUR configuration information.
3. The method of claim 1, wherein the obtaining the time period for the UE to camp on the current cell comprises:
obtaining the relation between the motion trail and the time of the current cell;
and calculating the time period for the UE to reside in the current cell according to the position of the UE, the motion trail of the current cell and the time relation.
4. The method of claim 1, wherein the obtaining the time period for the UE to camp on the current cell comprises:
obtaining the relation between the motion trail and the time of the current cell;
and calculating the time period for the UE to reside in the current cell according to the starting time for the UE to reside in the current cell, the motion trail of the current cell and the time relationship.
5. The method according to claim 3 or 4, wherein the obtaining the motion trajectory and time relationship of the current cell comprises:
determining a satellite where the target cell is located according to the distribution data of the satellite cells;
acquiring ephemeris data of a satellite in which a target cell is located;
and obtaining the relation between the motion trail and the time of the target cell according to the ephemeris data of the satellite where the target cell is located and the distribution data of the satellite cell.
6. The method of claim 1, wherein obtaining the PUR procedure time period comprises:
and obtaining the uplink resource authorization of the PUR according to the PUR configuration information, and calculating the time period occupied by the uplink transmission of the PUR and the corresponding HARQACK thereof.
7. The method of claim 1, wherein after determining whether data transmission can be completed in the current cell according to the PUR configuration information, the method further comprises:
if the data transmission can not be completed in the current cell, after the current cell is reselected to another cell, taking the new cell as the current cell;
and continuing to identify whether the current cell where the UE is located is in a group of cells corresponding to the PUR configuration information, and if so, judging whether data transmission can be completed in the current cell according to the PUR configuration information.
8. A method for data transmission based on a satellite system, the method comprising:
generating PUR configuration information, wherein the wireless resources configured by the PUR configuration information correspond to a group of cells;
distributing the PUR configuration information to UE (user equipment) so that the UE can initiate PUR transmission according to the PUR configuration information;
when the UE needs to transmit data, identifying whether a current cell where the UE is located is in a group of cells corresponding to the PUR configuration information, judging whether data transmission can be completed in the current cell according to the PUR configuration information, and if the data transmission can be completed in the current cell, initiating the PUR transmission;
the UE determining whether data transmission can be completed in the current cell according to the PUR configuration information, including:
the UE obtains a time period of the UE residing in the current cell and obtains a PUR process time period, if the PUR process time period is covered by the time period of the UE residing in the current cell, data transmission can be finished in the current cell, and the PUR process time period comprises a time period occupied by PUR uplink transmission and HARQ ACK corresponding to the PUR uplink transmission.
9. The method of claim 8, wherein the configuration mode of the group of cells corresponding to the radio resources configured by the PUR configuration information is explicit configuration or implicit configuration;
and when the configuration mode is implicit configuration, the group of cells comprises all cells which pass through the UE and can provide the wireless resources configured in the PUR configuration information.
10. The method of claim 8, further comprising:
and if the UE cannot use the wireless resources configured by the PUR configuration information in the current cell, distributing the PUR configuration information to other UEs.
11. A data transmission apparatus based on a satellite system, the apparatus comprising:
a PUR configuration information receiving module, configured to receive PUR configuration information, where a radio resource configured by the PUR configuration information corresponds to a group of cells;
the PUR transmission module is used for initiating the PUR transmission according to the PUR configuration information;
when the UE needs to transmit data, identifying whether a current cell where the UE is located is in a group of cells corresponding to the PUR configuration information, if so, judging whether data transmission can be completed in the current cell according to the PUR configuration information, and if so, initiating the PUR transmission;
the determining whether data transmission can be completed in the current cell according to the PUR configuration information includes:
obtaining the time period for the UE to reside in the current cell;
obtaining a PUR process time period, wherein the PUR process time period comprises a time period occupied by PUR uplink transmission and HARQ ACK corresponding to the PUR uplink transmission;
and if the PUR process time period is covered by the time period of the UE residing in the current cell, judging that the data transmission can be completed in the current cell.
12. A data transmission apparatus based on a satellite system, the apparatus comprising:
the system comprises a PUR configuration information generation module, a PUR configuration information generation module and a PUR configuration information generation module, wherein the wireless resources configured by the PUR configuration information correspond to a group of cells;
a PUR configuration information distribution module, configured to distribute the PUR configuration information to UE, so that the UE initiates PUR transmission according to the PUR configuration information;
when the UE needs to transmit data, identifying whether a current cell where the UE is located is in a group of cells corresponding to the PUR configuration information, judging whether data transmission can be completed in the current cell according to the PUR configuration information, and if the data transmission can be completed in the current cell, initiating the PUR transmission;
the UE determining whether data transmission can be completed in the current cell according to the PUR configuration information, including:
the UE obtains a time period of the UE residing in the current cell and obtains a PUR process time period, if the PUR process time period is covered by the time period of the UE residing in the current cell, data transmission can be finished in the current cell, and the PUR process time period comprises a time period occupied by PUR uplink transmission and HARQ ACK corresponding to the PUR uplink transmission.
13. A storage medium having stored thereon a computer program for implementing the steps of the method of any one of claims 1 to 7, or of any one of claims 8 to 10, when executed by a processor.
14. A UE comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 1 to 7 when executing the computer program.
15. A base station comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the steps of the method of any one of claims 8 to 10 when executing the computer program.
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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111294962B (en) * 2020-02-26 2022-12-20 展讯通信（上海）有限公司 Data transmission method and device, storage medium and terminal
CN114080045B (en) * 2020-08-11 2024-06-14 维沃移动通信有限公司 Data transmission processing method, resource allocation method and related equipment
WO2022134065A1 (en) * 2020-12-25 2022-06-30 北京小米移动软件有限公司 Cell reselection method and apparatus, communication device, and storage medium
CN114765821A (en) * 2021-01-15 2022-07-19 展讯通信（上海）有限公司 Data transmission method, cell residence method, device and medium
CN114916066A (en) * 2021-02-09 2022-08-16 展讯半导体(南京)有限公司 Data transmission method and device and computer readable storage medium
GB2609213A (en) * 2021-07-22 2023-02-01 Nec Corp Communication system

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101227703A (en) * 2007-01-17 2008-07-23 北京三星通信技术研究有限公司 Device and method for allocating multi-type ACK/NACK channel
CN101400081A (en) * 2007-09-28 2009-04-01 大唐移动通信设备有限公司 Uplink scheduling method, system and device in TDD system
WO2011085270A1 (en) * 2010-01-08 2011-07-14 Interdigital Patent Holdings, Inc. Method and apparatus for performing discontinuous reception and/or discontinuous transmission for a multi-carrier/multi-cell operation
CN105612710A (en) * 2014-01-28 2016-05-25 华为技术有限公司 User equipment, base station and uplink data scheduling method
CN109756966A (en) * 2012-11-15 2019-05-14 华为技术有限公司 Method, base station and the user equipment of information transmission
CN110447185A (en) * 2017-03-20 2019-11-12 Oppo广东移动通信有限公司 A kind of method, base station and terminal for transmitting control signaling
CN110650548A (en) * 2019-09-20 2020-01-03 展讯通信（上海）有限公司 Method and equipment for multi-cell data transmission
CN110856276A (en) * 2019-11-15 2020-02-28 展讯通信（上海）有限公司 Data transmission and receiving method and device for non-connection state UE, terminal and base station

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110650538B (en) * 2018-06-26 2023-05-09 中国移动通信有限公司研究院 Resource, time slot format configuration and data transmission methods, devices, equipment and media
US20200059939A1 (en) * 2018-08-20 2020-02-20 Qualcomm Incorporated Cross-carrier scheduling for bandwidth parts
CN110536471B (en) * 2019-03-28 2023-02-17 中兴通讯股份有限公司 Transmission control method, device, terminal, base station, communication system, and storage medium

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101227703A (en) * 2007-01-17 2008-07-23 北京三星通信技术研究有限公司 Device and method for allocating multi-type ACK/NACK channel
CN101400081A (en) * 2007-09-28 2009-04-01 大唐移动通信设备有限公司 Uplink scheduling method, system and device in TDD system
WO2011085270A1 (en) * 2010-01-08 2011-07-14 Interdigital Patent Holdings, Inc. Method and apparatus for performing discontinuous reception and/or discontinuous transmission for a multi-carrier/multi-cell operation
CN109756966A (en) * 2012-11-15 2019-05-14 华为技术有限公司 Method, base station and the user equipment of information transmission
CN105612710A (en) * 2014-01-28 2016-05-25 华为技术有限公司 User equipment, base station and uplink data scheduling method
CN110447185A (en) * 2017-03-20 2019-11-12 Oppo广东移动通信有限公司 A kind of method, base station and terminal for transmitting control signaling
CN110650548A (en) * 2019-09-20 2020-01-03 展讯通信（上海）有限公司 Method and equipment for multi-cell data transmission
CN110856276A (en) * 2019-11-15 2020-02-28 展讯通信（上海）有限公司 Data transmission and receiving method and device for non-connection state UE, terminal and base station

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
移动通信网络小区域覆盖的软件工程设计;林柯;《中国优秀硕士学位论文全文数据库-信息科技辑》;20160315;全文 *

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