CN113068219B - Uplink resource allocation method, device, base station and storage medium - Google Patents
Uplink resource allocation method, device, base station and storage medium Download PDFInfo
- Publication number
- CN113068219B CN113068219B CN202110235959.3A CN202110235959A CN113068219B CN 113068219 B CN113068219 B CN 113068219B CN 202110235959 A CN202110235959 A CN 202110235959A CN 113068219 B CN113068219 B CN 113068219B
- Authority
- CN
- China
- Prior art keywords
- base station
- atg
- atg base
- information
- prb
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0226—Traffic management, e.g. flow control or congestion control based on location or mobility
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/02—Traffic management, e.g. flow control or congestion control
- H04W28/0231—Traffic management, e.g. flow control or congestion control based on communication conditions
- H04W28/0236—Traffic management, e.g. flow control or congestion control based on communication conditions radio quality, e.g. interference, losses or delay
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
The invention is suitable for the technical field of communication, and provides an uplink resource allocation method, an uplink resource allocation device, a base station and a storage medium, wherein the method comprises the following steps: the first ATG base station acquires first track information of an airborne client terminal, the first ATG base station pre-allocates PRBs for the airborne client terminal according to the first track information and generates resource occupation information of the first ATG base station, the resource occupation information comprises the pre-allocated first PRBs and occupation time periods of the first PRBs, and the first ATG base station sends the resource occupation information to a disturbed base station of the first ATG base station according to a current neighbor relation table of the first ATG base station so that the disturbed base station of the first ATG base station uses second PRBs except the first PRBs to perform uplink resource allocation in the occupation time periods, and therefore interference of the ATG base station on a traditional cellular network is effectively avoided.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, a base station, and a storage medium for allocating uplink resources.
Background
With the release of the prohibition of mobile phones on the mobile phones, china civil aviation walks into the air intelligent networking era, and networking of air traffic and intellectualization of ground-to-air communication in the future are on the trend. The flying networking concept is provided as early as 2014 in China Mobile, and the flying networking mainly utilizes a mobile communication network and a satellite network to carry out three-dimensional and layered network coverage on airspaces below ten thousand meters high altitude so as to meet the network access requirements of aviation aircrafts and service facilities thereof in different airspaces.
Satellite-based approaches and ATG-based base station (ground to air base station) approaches are the primary implementations of the communication of the femto-networks. Because satellite communication has the shortcomings of long delay, narrow bandwidth and the like, the mode of providing broadband network connection for the airplane by adopting the ATG base station has greater advantages and development potentials compared with a satellite along with the increase of the requirement of surfing the air route and airplane passengers. By arranging a special base station on the ground or sharing an existing base station and using a phased array antenna to realize directional beams, an ATG base station can cover an air area with the radius of 200 to 300 kilometers. In an ATG network, aircraft passengers are networked via on-board Customer terminals (CPE) and ATG base stations. The airplane has the function of a repeater, which is equivalent to a user terminal. When the airborne client terminal enters the ground-to-air base station service area, the airborne client terminal is connected to the ATG base station through random access to realize the connection with the network.
In a scene that an ATG base station provides network connection for an airplane, because an airborne client terminal is several kilometers away from the base station, a transmitting end is required to have larger transmitting power in order to ensure signal quality. In the downlink transmission from the ATG base station to the airborne client terminal, the ATG base station transmits signals in the air, so that the traditional cellular base station is not easily interfered. In the uplink transmission from the airborne client terminal to the ATG base station, the conventional cellular base station suffers from strong uplink interference due to airborne real-time movement and signal scattering. When the ATG network and the conventional cellular network are deployed using a shared spectrum, uplink interference may seriously affect the communication quality of the conventional cellular network, and hinder the normal operation of the conventional cellular network.
Disclosure of Invention
The invention aims to provide an uplink resource allocation method, an uplink resource allocation device, a base station and a storage medium, and aims to solve the problem that an ATG base station generates interference on a traditional cellular network when the ATG network and the traditional cellular network are deployed by adopting a shared spectrum in the prior art.
In one aspect, the present invention provides a method for allocating uplink resources, where the method includes the following steps:
the method comprises the steps that a first ATG base station obtains first track information of an airborne client terminal;
the first ATG base station pre-allocates PRBs for the airborne client terminal according to the first track information and generates resource occupation information of the first ATG base station, wherein the resource occupation information comprises the pre-allocated first PRBs and occupation time periods of the first PRBs;
and the first ATG base station sends the resource occupation information to a disturbed base station of the first ATG base station according to the current neighbor relation table of the first ATG base station, so that the disturbed base station of the first ATG base station uses a second PRB except the first PRB to perform uplink resource allocation in the occupation time period.
Preferably, the neighbor relation table includes identification information of a disturbed base station, where the identification information includes a cell ID and a frequency band.
Preferably, the first ATG base station sends the resource occupation information to a victim base station of the first ATG base station through a resource status report message.
Preferably, the method further comprises:
and the first ATG base station determines a disturbed base station of the first ATG base station and adds the identification information of the determined disturbed base station to the adjacent region relation table.
Preferably, the step of the first ATG base station determining the interfered base station of the first ATG base station includes:
the first ATG base station determines a disturbed base station of the first ATG base station according to the distance between the first ATG base station and the surrounding cellular base stations; and/or
When the first ATG base station receives identification information sent by a cellular base station, the first ATG base station takes the cellular base station sending the identification information as a disturbed base station of the first ATG base station, wherein the cellular base station is used for sending the identification information of the cellular base station when detecting that the interference strength value of uplink interference between the cellular base station and the first ATG base station exceeds a preset interference threshold value.
Preferably, the step of the first ATG base station acquiring the first trajectory information of the airborne client terminal includes:
and the first ATG base station acquires the first track information according to prestored airplane route information.
Preferably, after the step of acquiring the first trajectory information of the airborne client terminal, the first ATG base station further includes:
the first ATG base station calibrates the first track information according to the obtained time difference;
the first ATG base station generates resource occupation updating information according to the calibrated first track information, wherein the resource occupation updating information comprises an updated occupation time period;
and the first ATG base station sends the resource occupation updating information to a disturbed base station of the first ATG base station according to the current adjacent cell relation table, so that the disturbed base station of the first ATG base station uses the second PRB to perform uplink resource allocation in the updated occupation time period.
Preferably, before the step of calibrating the first track information by the first ATG base station according to the obtained time difference, the method further includes:
the first ATG base station makes a difference between the acquired actual arrival time of the airborne client terminal and the planned arrival time in the first track information to acquire the time difference; or
The first ATG base station receives the time difference sent by the second ATG base station;
preferably, after the step of obtaining the time difference, the method further includes:
and the first ATG base station sends the time difference to a third ATG base station so that the third ATG base station calibrates third track information according to the time difference.
Preferably, after the step of sending, by the first ATG base station, the resource occupation information to the interfered base station of the first ATG base station according to the current neighboring cell relation table of the first ATG base station, the method further includes:
before the first ATG base station is closed, the first ATG base station sends base station closing information to a disturbed base station of the first ATG base station according to the current neighbor relation table of the first ATG base station, so that the disturbed base station of the first ATG base station can freely use the first PRB and the second PRB to perform uplink resource allocation after the first ATG base station is closed.
In another aspect, the present invention provides an uplink resource allocation method, including the following steps:
receiving resource occupation information sent by a first ATG base station, wherein the resource occupation information comprises a first PRB pre-allocated to an airborne user terminal by the first ATG base station and an occupation time period of the first PRB;
and performing uplink resource allocation by using a second PRB except the first PRB in the occupied time period.
Preferably, the step of receiving the resource occupation information sent by the first ATG base station includes:
and receiving the resource occupation information sent by the first ATG base station through the resource status report message.
Preferably, before the step of receiving the resource occupation information sent by the first ATG base station, the method further includes:
detecting an interference strength value of uplink interference between the first ATG base station and the first ATG base station;
if the interference strength value exceeds a preset interference threshold value, sending the identification information to the first ATG base station so that the first ATG base station adds the received identification information to a current adjacent cell relation table of the first ATG base station, wherein the first ATG base station sends the resource occupation information according to the current adjacent cell relation table, the adjacent cell relation table contains identification information of a disturbed base station, and the identification information comprises a cell ID and a frequency band;
preferably, after the step of receiving the resource occupation information sent by the first ATG base station, the method further includes:
receiving resource occupation updating information sent by the first ATG base station, wherein the resource occupation updating information comprises an updated occupation time period;
and performing uplink resource allocation by using the second PRB in the updated occupied time period.
Preferably, after the step of using the second PRB in the occupied time period, the method further includes:
and after receiving the base station closing information sent by the first ATG base station, freely using the first PRB and the second PRB to perform uplink resource allocation.
In another aspect, the present invention provides an uplink resource allocation apparatus, including:
the track information acquisition unit is used for acquiring first track information of the airborne client terminal by the first ATG base station;
an occupation information generation unit, configured to pre-allocate, by the first ATG base station, a PRB for the airborne client terminal according to the first trajectory information, and generate resource occupation information of the first ATG base station, where the resource occupation information includes the pre-allocated first PRB and an occupation time period of the first PRB; and
and an occupation information sending unit, configured to send, by the first ATG base station, the resource occupation information to a victim base station of the first ATG base station according to the current neighbor relation table of the first ATG base station, so that the victim base station of the first ATG base station performs uplink resource allocation using a second PRB, other than the first PRB, in the occupation time period.
In another aspect, the present invention provides an uplink resource allocation apparatus, including:
an occupation information receiving unit, configured to receive resource occupation information sent by a first ATG base station, where the resource occupation information includes a first PRB pre-allocated by the first ATG base station for an airborne user terminal and an occupation time period of the first PRB; and
and a resource allocation unit, configured to perform uplink resource allocation using a second PRB other than the first PRB in the occupied time period.
In another aspect, the present invention also provides a base station, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the steps of the method when executing the computer program.
In another aspect, the present invention also provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of the method as described above.
According to the invention, the first ATG base station acquires the first track information of the airborne client terminal, the first ATG base station pre-allocates PRB for the airborne client terminal according to the first track information, and generates the resource occupation information of the first ATG base station, wherein the resource occupation information comprises the pre-allocated first PRB and the occupation time period of the first PRB, and the first ATG base station sends the resource occupation information to the interfered base station of the first ATG base station according to the current adjacent area relation table of the first ATG base station, so that the interfered base station of the first ATG base station uses the second PRB except the first PRB to perform uplink resource allocation in the occupation time period, and the interference of the ATG base station on the traditional cellular network is effectively avoided.
Drawings
Fig. 1A is a flowchart illustrating an implementation of an uplink resource allocation method according to an embodiment of the present invention;
fig. 1B is a schematic structural diagram of a subframe according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating an implementation of an uplink resource allocation method according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of an uplink resource allocation apparatus according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of an uplink resource allocation apparatus according to a fourth embodiment of the present invention; and
fig. 5 is a schematic structural diagram of a base station according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description of specific implementations of the invention is provided in conjunction with specific embodiments:
the first embodiment is as follows:
fig. 1A shows an implementation flow of an uplink resource allocation method according to a first embodiment of the present invention, and for convenience of description, only a part related to the embodiment of the present invention is shown, and the details are as follows:
in step S101, the first ATG base station acquires first trajectory information of the onboard client terminal.
The embodiment of the invention is suitable for the base station in the communication network, and more particularly suitable for the ATG base station in the ATG network (ground-air intercommunication network). In the embodiment of the present invention, each ATG base station includes trajectory information of an airborne client terminal, where the trajectory information includes time elapsed by the airborne client terminal over the ATG base station, that is, time for the ATG base station to provide service for the airborne client terminal, and further, the trajectory information may further include a relative position relationship or a distance between the airborne client terminal and the ATG base station, and the trajectory information of the airborne client terminal acquired by the first ATG base station is represented by the first trajectory information for convenience of description.
When the first ATG base station acquires the first trajectory information of the airborne client terminal, preferably, the first ATG base station acquires the first trajectory information according to pre-stored aircraft route information, so as to automatically acquire the trajectory information through the aircraft route information. Specifically, the aircraft route information may be pre-stored in each ATG base station by the user, and the first ATG base station may obtain the first trajectory information according to the stored aircraft route information.
Considering that the actual trajectory information of the airborne client terminal and the saved trajectory information may have a difference due to delayed takeoff of the aircraft and encountered weather interference, after the first ATG base station acquires the first trajectory information of the airborne client terminal, preferably, the first ATG base station makes a difference between the acquired actual arrival time of the airborne client terminal and the planned arrival time in the first trajectory information to acquire a time difference, and calibrates the first trajectory information according to the acquired time difference, so as to calibrate the first trajectory information when the aircraft arrives within the service range of the first ATG base station. After the first ATG base station acquires the time difference, further preferably, the first ATG base station sends the time difference to a third ATG base station, so that the third ATG base station calibrates the third trajectory information according to the time difference. Specifically, the first ATG base station may transmit the time difference to a third ATG base station through an inter-base station interface, where the third ATG base station may be understood as a next ATG base station adjacent to the first ATG base station, and the third trajectory information is trajectory information stored by the third ATG base station.
After the first ATG base station acquires the first trajectory information of the on-board client terminal, it is further preferable that the first ATG base station receives the time difference transmitted by the second ATG base station and calibrates the first trajectory information according to the acquired time difference, so that the first trajectory information is updated in time according to the time difference acquired from the adjacent ATG base station when the aircraft does not arrive within the service range of the first ATG base station. Specifically, the first ATG base station may receive, through the inter-base station interface, the time difference information sent by the third ATG base station, where the second ATG base station may be understood as a previous ATG base station adjacent to the first ATG base station, and the manner in which the second ATG base station acquires the time difference may refer to the manner in which the first ATG base station acquires the time difference.
In step S102, the first ATG base station pre-allocates a PRB to the airborne client terminal according to the first trajectory information, and generates resource occupation information of the first ATG base station, where the resource occupation information includes the pre-allocated first PRB and an occupation time period of the first PRB, and the resource occupation information may also include the first trajectory information and the like.
In the embodiment of the present invention, the Resource occupation information of the first ATG base station at least includes a pre-allocated first PRB (Physical Resource Block) and an occupation time period of the first PRB. The PRB occupied by the ATG base station can be represented by each frame bitmap, if a certain PRB is allocated to a certain user, the corresponding bit in the bitmap is 1, otherwise, the bit is 0.
In step S103, the first ATG base station sends the resource occupation information to the victim base station of the first ATG base station according to the current neighboring cell relation table of the first ATG base station, so that the victim base station of the first ATG base station performs uplink resource allocation using the second PRB other than the first PRB within the occupation time period of the first PRB.
In the embodiment of the present invention, each ATG base station may include a corresponding neighbor relation table, and preferably, the neighbor relation table of the first ATG base station includes identification information of a disturbed base station of the first ATG base station, where the identification information includes a cell ID and a frequency band, so that the first ATG base station sends the resource occupation information to the corresponding disturbed base station according to the identification information. When sending the Resource occupation information to the interfered base station, preferably, the first ATG base station sends the Resource occupation information to the interfered base station of the first ATG base station through a Resource Status Reporting (Resource Status Reporting) message, so as to implement transmission of the Resource occupation information through inter-base station signaling.
When the first ATG base station determines the current neighbor relation table of the first ATG base station, preferably, the first ATG base station determines a victim base station of the first ATG base station, and adds the identifier information of the determined victim base station to the neighbor relation table. Specifically, the initial state of the neighbor relation table may be an empty table, and the neighbor relation table is maintained by adding identification information of the interfered base station.
When the first ATG base station determines the interfered base station of the first ATG base station, preferably, the first ATG base station determines the interfered base station of the first ATG base station according to a distance between the first ATG base station and a surrounding cellular base station, so as to determine the interfered base station directly according to a distance relationship between the base stations. Specifically, in the process of deploying the ATG base stations, a distance threshold may be preset, and the distance threshold is used as a radius to form a circle, so that all cellular base stations in the disturbed area can be regarded as disturbed base stations of the first ATG base station.
When the first ATG base station determines the interfered base station of the first ATG base station, it is further preferable that when the first ATG base station receives the identification information sent by the cellular base station, the first ATG base station takes the cellular base station sending the identification information as the interfered base station of the first ATG base station, so as to automatically determine the cellular base station sending the identification information as the interfered base station. The cellular base station is configured to send the identification information of the cellular base station when detecting that an interference strength value of uplink interference between the cellular base station and the first ATG base station exceeds a preset interference threshold value. Specifically, an interference threshold is preset, and in the uplink transmission of the ATG network using the same frequency spectrum, if the cellular base station detects that the interference strength value of the uplink interference between the cellular base station and the first ATG base station exceeds the interference threshold, the cellular base station sends the identification information of the base station, including the cell ID and the frequency band, to the first ATG base station through the core network or the inter-base station interface, and after receiving the identification information sent by the cellular base station, the first ATG base station takes the base station as the interfered base station of the first ATG base station.
In reality, the interfered base station of the first ATG base station may be determined according to the distance between the first ATG base station and the surrounding cellular base stations, and the identification information of the determined interfered base station may be added to the neighbor relation table. In the uplink transmission of the ATG network using the same frequency spectrum, when a first ATG base station receives identification information sent by a cellular base station, the identification information of the cellular base station sending the identification information is updated to a current neighbor relation table so as to regard the cellular base station as a disturbed base station of the first ATG base station.
After receiving the resource occupation information, the victim base station of the first ATG base station performs uplink resource allocation using a second PRB other than the first PRB within the occupation time period of the first PRB, in other words, the victim base station of the first ATG base station does not perform resource allocation using the first PRB within the occupation time period of the first PRB, so as to avoid using the same frequency resource at the same time. Considering that there may be an advance or delay in the base station handover, the interfered base station of the first ATG base station may reserve part of the slot resources (part of the first PRB) that may be interfered in advance, for example, 50%. Specifically, the interfered base station of the first ATG base station may reserve a part of the time slot resources to be interfered within a preset time length before the occupied time period. The preset time length can be preset by a user, the preset time length can also be determined according to the distance between the first ATG base station and the airborne client terminal, the preset time length is relatively fixed based on the airplane air route, the preset time length can be obtained by calculating the first ATG base station according to the first track information (the distance between the first ATG base station and the airborne client terminal), and the preset time length can be sent to the interfered base station of the first ATG base station, or the preset time length can be obtained by calculating the interfered base station according to the obtained first track information.
Preferably, before the first ATG base station is turned off, base station turning-off information is sent to the victim base station of the first ATG base station according to the current neighbor relation table of the first ATG base station, and after the victim base station of the first ATG base station receives the base station turning-off information sent by the first ATG base station, the victim base station freely uses the first PRB and the second PRB for uplink resource allocation, so that the frequency resources are freely used in time after the ATG base station is turned off.
As an example, the ATG base station obtains the time T1 for the aircraft (on-board client terminal) to arrive in the coverage area of the base station and the time T2 for departure. The PRB occupied by the ATG base station is represented by each frame bitmap, and if a certain PRB is allocated to a certain airborne client terminal, the corresponding bit in the bitmap is 1; otherwise, the value is set to 0. In the bitmap of the sub-frame (subframe) shown in fig. 1B, the bitmap of the resource occupied by the ATG base station is: 1001010110, that is, the airborne client terminal is allocated PRB1, PRB4, PRB6, PRB8, PRB9. The ATG base station transmits the PRB occupation information and the use time to the interfered base station through the interface between the base stations, and the interfered base station only uses PRB2, PRB3, PRB5, PRB7 and PRB10 in the time [ T1 and T2] after receiving the information, thereby avoiding uplink interference. The base station closing information received by the disturbed base station is specifically bitmap of resources occupied by the ATG base station, specifically 0000000000, namely, the ATG base station does not use the resources at the moment, and the disturbed base station can use all resources of PRB1, PRB2, PRB3, PRB4, PRB5, PRB6, PRB7, PRB8, PRB9 and PRB 10.
After the first track information is calibrated, preferably, the first ATG base station generates resource occupation update information according to the calibrated first track information, where the resource occupation update information includes an updated occupied time period, and the first ATG base station sends the resource occupation update information to a disturbed base station of the first ATG base station according to the current neighboring cell relation table, so that the disturbed base station of the first ATG base station performs uplink resource allocation by using the second PRB in the updated occupied time period, and thus the disturbed base station avoids interference of the first ATG base station in a more accurate time. The method for sending the resource occupation update information to the interfered base station by the first ATG base station may be the same as the method for sending the resource occupation information to the interfered base station by the first ATG base station.
In the embodiment of the invention, the first ATG base station acquires the first track information of the airborne client terminal, the first ATG base station pre-allocates PRB for the airborne client terminal according to the first track information and generates the resource occupation information of the first ATG base station, the resource occupation information comprises the pre-allocated first PRB and the occupation time period of the first PRB, and the first ATG base station sends the resource occupation information to the interfered base station of the first ATG base station according to the current adjacent area relation table of the first ATG base station so that the interfered base station of the first ATG base station uses the second PRB except the first PRB to perform uplink resource allocation in the occupation time period, thereby effectively avoiding the interference of the ATG base station on the traditional cellular network.
The second embodiment:
fig. 2 shows an implementation flow of an uplink resource allocation method provided in the second embodiment of the present invention, and for convenience of description, only the parts related to the second embodiment of the present invention are shown, which are detailed as follows:
in step S201, resource occupation information sent by the first ATG base station is received, where the resource occupation information includes a first PRB pre-allocated by the first ATG base station for the airborne user terminal and an occupation time period of the first PRB.
The embodiment of the invention is suitable for the base station in the communication network, and more particularly suitable for the cellular base station which is possibly interfered by the uplink of the ATG base station, or the interfered base station. In the embodiment of the present invention, preferably, the Resource occupation information message sent by the first ATG base station is received through a Resource Status Reporting message (Resource Status Reporting) message, so as to implement transmission of the Resource occupation information through signaling between base stations.
Before the step of receiving the resource occupation information sent by the first ATG base station, preferably, an interference strength value of uplink interference with the first ATG base station is detected, and if a plurality of interference strength values exceed a preset interference threshold value, the identification information is sent to the first ATG base station, so that the first ATG base station adds the received identification information to a current neighbor relation table of the first ATG base station. The neighbor relation table contains identification information of the interfered base station, and the identification information comprises a cell ID and a frequency band. Specifically, an interference threshold is preset, and in uplink transmission of an ATG network using the same frequency spectrum, if a cellular base station detects that an interference strength value of uplink interference between the cellular base station and a first ATG base station exceeds the interference threshold, the cellular base station sends identification information of the base station, including a cell ID and a frequency band, to the first ATG base station through a core network or an inter-base station interface, and after receiving the identification information sent by the cellular base station, the first ATG base station takes the base station as a disturbed base station of the first ATG base station.
The specific implementation manner of the first ATG base station generating the resource occupation information and the specific implementation manner of the neighboring cell relation table may refer to the related description in the first embodiment, which is not described herein again.
In step S202, uplink resource allocation is performed using a second PRB other than the first PRB during the occupied period of the first PRB.
In the embodiment of the present invention, during the occupied time period of the first PRB, the uplink resource allocation is performed using PRBs other than the first PRB, that is, the second PRB. Considering that there may be an early or late base station handover, a part of the slot resources (part of the first PRB) that may be interfered with may be reserved in advance, for example, 50%. Specifically, a part of the time slot resources to be interfered may be reserved within a preset time length before the occupied time period. The preset time length can be preset by a user, and the preset time length can also be determined according to the distance between the first ATG base station and the airborne client terminal. Based on that the airplane route is relatively fixed, the preset time length may be a time length obtained by the first ATG base station after calculation according to the first trajectory information (the distance between the first ATG base station and the airborne client terminal), or may be a time length obtained by the first ATG base station after calculation according to the obtained first trajectory information. After the step of receiving the resource occupation information sent by the first ATG base station, preferably, receiving resource occupation update information sent by the first ATG base station, where the resource occupation update information includes an updated occupation time period, and performing uplink resource allocation using the second PRB in the updated occupation time period, so as to avoid interference of the first ATG base station in a more accurate time. The method for receiving the resource occupation update information is the same as the method for receiving the resource occupation information.
After the second PRB is used in the occupied time period, preferably, after the base station shutdown information sent by the first ATG base station is received, the first PRB and the second PRB are freely used for uplink resource allocation, so that the frequency resource is freely used in time after the ATG base station is shutdown.
In the embodiment of the invention, resource occupation information sent by a first ATG base station is received, wherein the resource occupation information comprises a first PRB preallocated by the first ATG base station for an airborne user terminal and an occupation time period of the first PRB, and uplink resource allocation is carried out by using a second PRB except the first PRB in the occupation time period. Therefore, the interference of the ATG base station to the traditional cellular network is effectively avoided.
Example three:
fig. 3 shows a structure of an uplink resource allocation apparatus according to a third embodiment of the present invention, and for convenience of description, only the parts related to the third embodiment of the present invention are shown, where the parts include:
a trajectory information acquiring unit 31, configured to acquire first trajectory information of the airborne client terminal by the first ATG base station;
the occupation information generating unit 32 is used for the first ATG base station to pre-allocate the PRB for the airborne client terminal according to the first trajectory information and generate resource occupation information of the first ATG base station, wherein the resource occupation information includes the pre-allocated first PRB and an occupation time period of the first PRB; and
and an occupation information sending unit 33, configured to send, by the first ATG base station, the resource occupation information to the interfered base station of the first ATG base station according to the current neighboring cell relation table of the first ATG base station, so that the interfered base station of the first ATG base station performs uplink resource allocation by using a second PRB other than the first PRB in the occupation time period.
Preferably, the neighboring cell relation table includes identification information of the interfered base station, where the identification information includes a cell ID and a frequency band.
Preferably, the first ATG base station sends the resource occupation information to the interfered base station of the first ATG base station through the resource status report message.
Preferably, the uplink resource allocation apparatus further includes:
and the interfered base station determining unit is used for determining the interfered base station of the first ATG base station by the first ATG base station and adding the identification information of the determined interfered base station into the adjacent area relation table.
Preferably, the disturbed base station determining unit further includes:
the distance mode determining unit is used for determining the interfered base station of the first ATG base station according to the distance between the first ATG base station and the surrounding cellular base stations by the first ATG base station; and/or
And the interference mode determining unit is used for enabling the first ATG base station to take the honeycomb base station which sends the identification information as a disturbed base station of the first ATG base station when the first ATG base station receives the identification information sent by the honeycomb base station, wherein the honeycomb base station is used for sending the identification information of the honeycomb base station when the interference strength value of uplink interference between the honeycomb base station and the first ATG base station is detected to exceed a preset interference threshold value.
Preferably, the trajectory information acquiring unit further includes:
and the track information acquisition subunit is used for acquiring first track information by the first ATG base station according to the prestored airplane route information.
Preferably, the uplink resource allocation apparatus further includes:
the track information calibration unit is used for calibrating the first track information by the first ATG base station according to the obtained time difference;
an update information generation unit, configured to generate, by the first ATG base station, resource occupation update information according to the calibrated first trajectory information, where the resource occupation update information includes an updated occupation time period; and
the updating information sending unit is used for the first ATG base station to send the resource occupation updating information to the interfered base station of the first ATG base station according to the current adjacent region relation table so as to enable the interfered base station of the first ATG base station to use the second PRB to carry out uplink resource allocation in the updated occupation time period;
preferably, the uplink resource allocation apparatus further includes:
the time difference calculation unit is used for the first ATG base station to make a difference between the acquired actual arrival time of the airborne client terminal and the planned arrival time in the first track information to acquire a time difference; or
A time difference receiving unit, for the first ATG base station receiving the time difference sent by the second ATG base station;
preferably, the uplink resource allocation apparatus further includes:
and the time difference sending unit is used for sending the time difference to the third ATG base station by the first ATG base station so as to enable the third ATG base station to calibrate the third track information according to the time difference.
Preferably, the uplink resource allocation apparatus further includes:
and the closing information sending unit is used for sending the base station closing information to the interfered base station of the first ATG base station by the first ATG base station according to the current adjacent area relation table of the first ATG base station before the first ATG base station is closed, so that the interfered base station of the first ATG base station can freely use the first PRB and the second PRB to perform uplink resource allocation after the first ATG base station is closed.
In the embodiment of the present invention, each unit of the uplink resource allocation apparatus may be implemented by a corresponding hardware or software unit, and each unit may be an independent software or hardware unit, or may be integrated into a software or hardware unit, which is not limited herein. For the specific implementation of each unit of the uplink resource allocation apparatus, reference may be made to the description of the foregoing method embodiment, and details are not repeated here.
Example four:
fig. 4 shows a structure of an uplink resource allocation apparatus according to a fourth embodiment of the present invention, and for convenience of description, only a part related to the embodiment of the present invention is shown, where the structure includes:
an occupation information receiving unit 41, configured to receive resource occupation information sent by the first ATG base station, where the resource occupation information includes a first PRB pre-allocated by the first ATG base station for the airborne user terminal and an occupation time period of the first PRB; and
and a resource allocation unit 42, configured to perform uplink resource allocation using a second PRB other than the first PRB in the occupied time period.
Preferably, the resource occupation information sent by the first ATG base station is received through a resource status report message.
Preferably, the uplink resource allocation apparatus further includes:
the interference value detection unit is used for detecting the interference strength value of uplink interference between the first ATG base station and the first ATG base station; and
and the identification information sending unit is used for sending identification information to the first ATG base station if the interference strength value exceeds a preset interference threshold value so as to enable the first ATG base station to add the received identification information to a current adjacent cell relation table of the first ATG base station, wherein the first ATG base station sends resource occupation information according to the current adjacent cell relation table, the adjacent cell relation table contains identification information of the interfered base station, and the identification information comprises a cell ID and a frequency band.
Preferably, the uplink resource allocation apparatus further includes:
an update information receiving unit, configured to receive resource occupation update information sent by a first ATG base station, where the resource occupation update information includes an occupied time period after update; and
and the resource allocation subunit is used for performing uplink resource allocation by using the second PRB in the updated occupied time period.
Preferably, the uplink resource allocation apparatus further includes:
and the free allocation unit is used for freely using the first PRB and the second PRB to perform uplink resource allocation after receiving the base station closing information sent by the first ATG base station.
In the embodiment of the present invention, each unit of the uplink resource allocation apparatus may be implemented by a corresponding hardware or software unit, and each unit may be an independent software or hardware unit, or may be integrated into a software or hardware unit, which is not limited herein. For the specific implementation of each unit of the uplink resource allocation apparatus, reference may be made to the description of the foregoing method embodiment, and details are not repeated here.
Example five:
fig. 5 shows a structure of a base station according to a fifth embodiment of the present invention, and for convenience of description, only the parts related to the embodiment of the present invention are shown.
The base station 5 of an embodiment of the present invention comprises a processor 50, a memory 51 and a computer program 52 stored in the memory 51 and executable on the processor 50. The processor 50 executes the computer program 52 to implement the steps in the above-mentioned method embodiments, such as steps S101 to S103 shown in fig. 1A, and steps S201 to S202 shown in fig. 2. Alternatively, the processor 50, when executing the computer program 52, implements the functions of the units in the above-described device embodiments, such as the functions of the units 31 to 33 shown in fig. 3 and the functions of the units 41 to 42 shown in fig. 4.
Example six:
in an embodiment of the present invention, a computer-readable storage medium is provided, which stores a computer program, and when the computer program is executed by a processor, the computer program implements steps in the above method embodiment, such as steps S101 to S103 shown in fig. 1A, and steps S201 to S202 shown in fig. 2. Alternatively, the computer program may be adapted to perform the functions of the units in the above-described device embodiments, such as the functions of the units 31 to 33 shown in fig. 3 and the functions of the units 41 to 42 shown in fig. 4, when being executed by the processor.
The computer readable storage medium of the embodiments of the present invention may include any entity or device capable of carrying computer program code, a recording medium, such as a ROM/RAM, a magnetic disk, an optical disk, a flash memory, or the like.
The above description is intended to be illustrative of the preferred embodiment of the present invention and should not be taken as limiting the invention, but rather, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (10)
1. An uplink resource allocation method, comprising:
the method comprises the steps that a first ATG base station acquires first track information of an airborne client terminal;
the first ATG base station pre-allocates PRBs for the airborne client terminal according to the first track information and generates resource occupation information of the first ATG base station, wherein the resource occupation information comprises the pre-allocated first PRBs and occupation time periods of the first PRBs;
the first ATG base station sends the resource occupation information to a disturbed base station of the first ATG base station according to the current adjacent cell relation table of the first ATG base station, so that the disturbed base station of the first ATG base station uses a second PRB except the first PRB to perform uplink resource allocation in the occupation time period;
the method further comprises the following steps:
the first ATG base station determines a disturbed base station of the first ATG base station and adds the identification information of the determined disturbed base station to the adjacent region relation table;
the step of the first ATG base station determining the interfered base station of the first ATG base station comprises the following steps:
when the first ATG base station receives identification information sent by a cellular base station, the first ATG base station takes the cellular base station sending the identification information as a disturbed base station of the first ATG base station, wherein the cellular base station is used for sending the identification information of the cellular base station when detecting that the interference strength value of uplink interference between the cellular base station and the first ATG base station exceeds a preset interference threshold value.
2. The method of claim 1, wherein the neighbor relation table includes identification information of a disturbed base station, and the identification information includes a cell ID and a frequency band; the first ATG base station sends the resource occupation information to a disturbed base station of the first ATG base station through a resource status report message;
the method further comprises the following steps:
the first ATG base station determines a disturbed base station of the first ATG base station and adds the identification information of the determined disturbed base station to the adjacent region relation table;
the step of the first ATG base station determining the interfered base station of the first ATG base station comprises the following steps:
and the first ATG base station determines the interfered base station of the first ATG base station according to the distance between the first ATG base station and the surrounding cellular base stations.
3. The method of claim 1, wherein the step of the first ATG base station obtaining first trajectory information for an airborne client terminal comprises:
the first ATG base station acquires the first track information according to pre-stored airplane route information;
after the step of acquiring the first trajectory information of the airborne client terminal by the first ATG base station, the method further includes:
the first ATG base station calibrates the first track information according to the obtained time difference;
the first ATG base station generates resource occupation updating information according to the calibrated first track information, wherein the resource occupation updating information comprises an updated occupation time period;
the first ATG base station sends the resource occupation updating information to a disturbed base station of the first ATG base station according to the current neighbor relation table, so that the disturbed base station of the first ATG base station uses the second PRB to perform uplink resource allocation in the updated occupation time period;
before the step of calibrating the first track information by the first ATG base station according to the obtained time difference, the method further includes:
the first ATG base station makes a difference between the acquired actual arrival time of the airborne client terminal and the planned arrival time in the first track information to obtain the time difference; or
The first ATG base station receives the time difference sent by a second ATG base station;
after the step of obtaining the time difference, the method further includes:
and the first ATG base station sends the time difference to a third ATG base station so that the third ATG base station calibrates third track information according to the time difference.
4. The method of claim 1, wherein after the step of the first ATG base station sending the resource occupancy information to the victim base station of the first ATG base station according to the current neighbor relation table of the first ATG base station, further comprising:
before the first ATG base station is closed, the first ATG base station sends base station closing information to the interfered base station of the first ATG base station according to the current adjacent area relation table of the first ATG base station, so that the interfered base station of the first ATG base station can freely use the first PRB and the second PRB to perform uplink resource allocation after the first ATG base station is closed.
5. An uplink resource allocation method, comprising the steps of:
receiving resource occupation information sent by a first ATG base station, wherein the resource occupation information comprises a first PRB pre-allocated to an airborne user terminal by the first ATG base station and an occupation time period of the first PRB;
performing uplink resource allocation by using a second PRB except the first PRB in the occupied time period;
before the step of receiving the resource occupation information sent by the first ATG base station, the method further includes:
detecting an interference strength value of uplink interference between the first ATG base station and a first ATG base station;
and if the interference strength value exceeds a preset interference threshold value, sending identification information to the first ATG base station so that the first ATG base station adds the received identification information to a current adjacent cell relation table of the first ATG base station, wherein the first ATG base station sends the resource occupation information according to the current adjacent cell relation table, the adjacent cell relation table contains identification information of a disturbed base station, and the identification information comprises a cell ID and a frequency band.
6. The method of claim 5, wherein said step of receiving resource occupancy information from the first ATG base station comprises:
receiving resource occupation information sent by a first ATG base station through a resource state report message;
after the step of receiving the resource occupation information sent by the first ATG base station, the method further includes:
receiving resource occupation updating information sent by the first ATG base station, wherein the resource occupation updating information comprises an updated occupation time period;
performing uplink resource allocation by using the second PRB within the updated occupied time period;
after the step of using the second PRB in the occupied time period, the method further includes:
and after receiving the base station closing information sent by the first ATG base station, freely using the first PRB and the second PRB to perform uplink resource allocation.
7. An apparatus for uplink resource allocation, the apparatus comprising:
the track information acquisition unit is used for acquiring first track information of the airborne client terminal by the first ATG base station;
an occupation information generation unit, configured to pre-allocate, by the first ATG base station, a PRB for the airborne client terminal according to the first trajectory information, and generate resource occupation information of the first ATG base station, where the resource occupation information includes the pre-allocated first PRB and an occupation time period of the first PRB; and
an occupation information sending unit, configured to send, by the first ATG base station, the resource occupation information to a victim base station of the first ATG base station according to a current neighboring cell relation table of the first ATG base station, so that the victim base station of the first ATG base station performs uplink resource allocation using a second PRB, other than the first PRB, in the occupation time period;
a base station determining unit, configured to determine, by the first ATG base station, a disturbed base station of the first ATG base station, and add identifier information of the determined disturbed base station to the neighboring cell relation table;
the base station determination unit includes:
and the identification information setting unit is used for enabling the first ATG base station to take the cellular base station which sends the identification information as a disturbed base station of the first ATG base station when the first ATG base station receives the identification information sent by the cellular base station, wherein the cellular base station is used for sending the identification information of the cellular base station when detecting that the interference strength value of uplink interference between the cellular base station and the first ATG base station exceeds a preset interference threshold value.
8. An uplink resource allocation apparatus, the apparatus comprising:
the device comprises an occupation information receiving unit, a resource occupation information sending unit and a resource allocation information receiving unit, wherein the occupation information receiving unit is used for receiving resource occupation information sent by a first ATG base station, and the resource occupation information comprises a first PRB pre-allocated by the first ATG base station for an airborne user terminal and an occupation time period of the first PRB;
a resource allocation unit, configured to perform uplink resource allocation using a second PRB other than the first PRB in the occupied time period;
the interference detection unit is used for detecting the interference strength value of uplink interference between the first ATG base station and the first ATG base station; and
and an identifier information sending unit, configured to send the identifier information to the first ATG base station if the interference strength value exceeds a preset interference threshold value, so that the first ATG base station adds the received identifier information to a current neighbor relation table of the first ATG base station, where the first ATG base station sends the resource occupation information according to the current neighbor relation table, the neighbor relation table includes identifier information of a disturbed base station, and the identifier information includes a cell ID and a frequency band.
9.A base station comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the steps of the method according to any of claims 1 to 6 are implemented when the computer program is executed by the processor.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110235959.3A CN113068219B (en) | 2021-03-03 | 2021-03-03 | Uplink resource allocation method, device, base station and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110235959.3A CN113068219B (en) | 2021-03-03 | 2021-03-03 | Uplink resource allocation method, device, base station and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113068219A CN113068219A (en) | 2021-07-02 |
| CN113068219B true CN113068219B (en) | 2022-10-25 |
Family
ID=76559646
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110235959.3A Active CN113068219B (en) | 2021-03-03 | 2021-03-03 | Uplink resource allocation method, device, base station and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113068219B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114885361A (en) * | 2022-06-14 | 2022-08-09 | 中国电信股份有限公司 | Aviation mobile communication system, method, device, electronic equipment and storage medium |
| CN116506910B (en) * | 2023-06-27 | 2023-09-08 | 中国电信股份有限公司 | Air-to-ground communication method and device, storage medium and electronic equipment |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109089320A (en) * | 2018-09-21 | 2018-12-25 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Ground-to-air wideband communication system fragmentation dynamic spectrum resource management method based on LTE |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101668304B (en) * | 2008-09-04 | 2012-08-15 | 电信科学技术研究院 | Method and device for measuring and indicating high-interference indicating parameters |
| CN101772034B (en) * | 2009-01-04 | 2013-04-17 | 华为技术有限公司 | Method, related equipment and system for determining interference priorities of neighbor cells |
| CN101969370B (en) * | 2010-10-11 | 2013-06-26 | 新邮通信设备有限公司 | Method for coordinating interference between cells |
| CN109246727B (en) * | 2017-07-11 | 2021-09-24 | 中国移动通信集团设计院有限公司 | Optimization processing method for switching band and base station |
-
2021
- 2021-03-03 CN CN202110235959.3A patent/CN113068219B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109089320A (en) * | 2018-09-21 | 2018-12-25 | 中国商用飞机有限责任公司北京民用飞机技术研究中心 | Ground-to-air wideband communication system fragmentation dynamic spectrum resource management method based on LTE |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113068219A (en) | 2021-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20200351957A1 (en) | Timing synchronization method and apparatus therefor | |
| Goddemeier et al. | Coverage evaluation of wireless networks for unmanned aerial systems | |
| US20230276258A1 (en) | Infrastructure equipment, communications devices and methods | |
| CN111095975B (en) | Method and apparatus for cell measurement in a communication system | |
| CN113068219B (en) | Uplink resource allocation method, device, base station and storage medium | |
| KR20170089609A (en) | Methods for Initial Channel Setting and Connection Establishment in UAS CNPC(Control and Non-Payload Communication) | |
| CN112055309B (en) | Communication method and related equipment | |
| Li et al. | A hierarchical approach to resource allocation in extensible multi-layer LEO-MSS | |
| CN110392403B (en) | Communication method and device | |
| WO2021203366A1 (en) | Location determination method and device | |
| WO2021022489A1 (en) | Handover control method, apparatus, device, and storage medium | |
| WO2020126666A1 (en) | Infrastructure equipment, communications devices and methods | |
| US20220159481A1 (en) | System and method for providing configuration information | |
| CN115175254A (en) | Wireless communication method, device and system | |
| Bellido-Manganell | Design approach of a future air-to-air data link | |
| Kim et al. | Beam management for 5G satellite systems based on NR | |
| Gräupl et al. | LDACS flight trials: Demonstration of ATS-B2, IPS, and seamless mobility | |
| KR20200127865A (en) | Timing synchronization method and apparatus therefor | |
| Vilhar et al. | Experimental analysis of wireless temporary networks deployed by low altitude platforms | |
| KR20220094162A (en) | Measurement management method for moving cell, and apparatus therefor | |
| CN111130628B (en) | Ground-to-air communication method and device | |
| CN116318318A (en) | Communication method and device | |
| Hong et al. | Signal transmission method for measurement used in handover of control and non-payload communication of unmanned aerial vehicle | |
| WO2022204961A1 (en) | Devices and methods for supporting flexible uplink resource request | |
| US20220330334A1 (en) | Communication control device, communication device, communication control method, and communication method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |