CN110890934A - Interference coordination method and device - Google Patents
Interference coordination method and device Download PDFInfo
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- CN110890934A CN110890934A CN201911187664.2A CN201911187664A CN110890934A CN 110890934 A CN110890934 A CN 110890934A CN 201911187664 A CN201911187664 A CN 201911187664A CN 110890934 A CN110890934 A CN 110890934A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
- H04J11/0023—Interference mitigation or co-ordination
- H04J11/005—Interference mitigation or co-ordination of intercell interference
Abstract
The embodiment of the invention discloses an interference coordination method and device, and relates to the technical field of communication. The problem of hysteresis of interference coordination when a terminal with fixed mode service executes the same task every time in the prior art can be solved. The method comprises the following steps: the method comprises the steps that an MEC server obtains a first data set when a target cell is used as a service cell of a terminal; wherein the first data set comprises: the service of the terminal, the identification of the interference cell and the interference coordination starting time of the target cell and the interference cell; before determining to switch a serving cell of a terminal from a current cell to a target cell, an MEC server sends a first data set to a target base station; the target base station determines an interference base station according to the identification of the interference cell, and determines an ABS pattern for resource scheduling of the service of the terminal before the interference coordination starting time with the interference base station; the target base station covers the target cell, and the interference base station covers the interference cell. The embodiment of the invention is applied to a network system.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to an interference coordination method and device.
Background
The 5G network supports 1000-time magnitude increase of traffic, the core technology is to deploy an ultra-dense network, and the cell radius is reduced by increasing the number of low-power sites so as to improve the transmission capability of unit area and improve the system capacity. In an ultra-dense network scene, the deployment density of stations is increased, and the distance between stations is reduced, which leads to more serious inter-cell interference. At the cell edge, the user rate and experience are difficult to be effectively improved. And as the number of neighboring stations increases, there may be multiple interferers of close strength, making the interference situation more complex. How to avoid inter-cell interference through site cooperation is an important problem to be solved by ultra-dense networks.
In time domain inter-cell interference coordination in an ultra-dense networking scene, it is essential to determine an Almost Blank Subframe (ABS) pattern used by an interfering cell and an interfered cell. In a traditional mode, after an interfered cell discovers an interfering cell for a certain user, according to a network quality condition fed back by the user, an interference coordination request between time domain cells is sent to the interfering cell, then the interfering cell sends an ABS pattern set to the interfered cell, the interfered cell selects an ABS pattern and then feeds the ABS pattern back to the interfering cell for confirmation, and then resource scheduling is carried out based on the confirmed pattern; or the interfered cell directly sends an ABS pattern set to the interfering cell, and after the interfering cell selects one ABS pattern, the interfering cell and the interfered cell perform resource scheduling based on the confirmed pattern. However, with the rapid development of mobile internet services and the rise of 5G + vertical industry services, richer service types gradually appear, and the requirements for a mobile network, especially the requirements for service guarantee, are more diverse; for example, the business is patrolled and examined to networking unmanned aerial vehicle 4K electric power, and unmanned aerial vehicle all can fly along fixed flight route at every turn to start opening the live 4K video immediately after flying, it is comparatively fixed to mobile network's demand, accomplishes 4K video transmission promptly. However for terminals with fixed traffic patterns like drones; in the ultra-dense network, interference coordination needs to be performed again every time the same service is executed, so that time is consumed for interference coordination every time, interference is always interfered after a serving cell is switched, and then the interference coordination is completed, that is, the interference coordination has hysteresis and seriously affects the service quality of a terminal.
Disclosure of Invention
Embodiments of the present invention provide an interference coordination method and apparatus, which can solve the problem of hysteresis of interference coordination when a terminal with a fixed mode service executes the same task each time in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
in a first aspect, an interference coordination method is provided, where the method includes: the method comprises the steps that an MEC server obtains a first data set when a target cell is used as a service cell of a terminal; wherein the first data set comprises: the service of the terminal, the identification of the interference cell and the interference coordination starting time of the target cell and the interference cell; before determining to switch a serving cell of a terminal from a current cell to a target cell, an MEC server sends a first data set to a target base station; the target base station determines an interference base station according to the identification of the interference cell, and determines an ABS pattern for resource scheduling of the service of the terminal before the interference coordination starting time with the interference base station; the target base station covers the target cell, and the interference base station covers the interference cell.
In the above method, since a terminal having a fixed mode service is considered, interference coordination is always required to be performed again each time the same service is performed, and the interference coordination of the prior art always has a problem of hysteresis; the method comprises the steps that an MEC server firstly obtains a first data set when a target cell is used as a service cell of a terminal; wherein the first data set comprises: the service of the terminal, the identification of the interference cell and the interference coordination starting time of the service cell and the interference cell; the service of the terminal is a fixed mode service; so as to obtain the interference coordination record which is performed by the terminal when the target cell executes the fixed mode service; then, before determining to switch the serving cell of the terminal from the current cell to the target cell, sending the first data set to the target base station; the target base station determines an interference base station according to the identification of the interference cell, and determines an ABS pattern for resource scheduling of the service of the terminal before the interference coordination starting time with the interference base station; therefore, the interference coordination of the fixed mode service aiming at the terminal can be completed in advance, so that the terminal cannot generate interference when the terminal executes the fixed mode service again in the target cell, and the situation of interference before coordination is avoided.
In a second aspect, an interference coordination method is provided, which includes: the method comprises the steps that before a target base station determines to switch a serving cell of a terminal from a current cell to a target cell, the target base station receives a first data set when the target cell is used as the serving cell of the terminal; wherein the first data set comprises: the service of the terminal, the identification of the interference cell and the interference coordination starting time of the service cell and the interference cell; the target base station determines an interference base station according to the identification of the interference cell, and controls the target base station and the interference base station to determine an ABS pattern for resource scheduling of the service of the terminal before the interference coordination starting time; wherein, the target base station covers the target cell; the interfering base station covers the interfering cell.
In a third aspect, an interference coordination apparatus is provided, which is applied to an MEC server or a chip of the MEC server, and includes: an obtaining unit, configured to obtain a first data set when a target cell is used as a serving cell of a terminal; wherein the first data set comprises: the service of the terminal, the identification of the interference cell and the interference coordination starting time of the target cell and the interference cell; the processing unit is used for sending the first data set acquired by the acquisition unit to the target base station before the serving cell of the terminal is determined to be switched from the current cell to the target cell; the target base station determines an interference base station according to the identification of the interference cell, and determines an ABS pattern for resource scheduling of the service of the terminal before the interference coordination starting time with the interference base station; the target base station covers the target cell, and the interference base station covers the interference cell.
It can be understood that, the interference coordination apparatus provided above is configured to execute the method corresponding to the first aspect provided above, and therefore, the beneficial effects that can be achieved by the interference coordination apparatus may refer to the beneficial effects of the method corresponding to the first aspect above and the corresponding scheme in the following detailed description, which are not described herein again.
In a fourth aspect, an interference coordination apparatus is provided, which is applied to a target base station or a chip in the target base station, and includes: an obtaining unit, configured to receive a first data set when a target cell is used as a serving cell of a terminal before determining to switch the serving cell of the terminal from a current cell to the target cell; wherein the first data set comprises: the service of the terminal, the identification of the interference cell and the interference coordination starting time of the service cell and the interference cell; the processing unit is used for determining an interference base station according to the identification of the interference cell acquired by the acquisition unit and controlling the target base station and the interference base station to determine an ABS pattern for resource scheduling of the service of the terminal before the interference coordination starting time acquired by the acquisition unit; wherein, the target base station covers the target cell; the interfering base station covers the interfering cell.
It can be understood that, the interference coordination apparatus provided above is configured to execute the method corresponding to the second aspect provided above, and therefore, the beneficial effects that can be achieved by the interference coordination apparatus refer to the method corresponding to the second aspect above and the beneficial effects of the solutions in the following detailed description, which are not described herein again.
In a fifth aspect, an interference coordination device is provided, which structurally includes a processor configured to execute program instructions to cause the interference coordination device to perform the method of the first aspect.
In a sixth aspect, an interference coordination device is provided, which structurally comprises a processor for executing program instructions to cause the interference coordination device to perform the method of the second aspect.
In a seventh aspect, a computer storage medium is provided, in which computer program code is stored, which, when run on an interference coordination apparatus, causes the interference coordination apparatus to perform the method of the first aspect.
Alternatively, the first and second electrodes may be,
the computer program code, when run on an interference coordination apparatus, causes the interference coordination apparatus to perform the method of the second aspect described above.
In an eighth aspect, a computer program product is provided, which stores the above computer software instructions and which, when run on an interference coordination apparatus, causes the interference coordination apparatus to execute a program of the method of the first aspect as described above.
Alternatively, the first and second electrodes may be,
the computer software instructions, when run on the interference coordination apparatus, cause the interference coordination apparatus to perform the procedure of the method of the first aspect as described above.
Drawings
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Fig. 1 is a diagram of a scenario of inter-cell interference provided in the prior art;
fig. 2 is a flowchart illustrating an interference coordination method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an interference coordination apparatus according to an embodiment of the present invention;
fig. 4 is a second schematic structural diagram of an interference coordination apparatus according to a second embodiment of the present invention;
fig. 5 is a third schematic structural diagram of an interference coordination apparatus according to an embodiment of the present invention;
fig. 6 is a fourth schematic structural diagram of an interference coordination apparatus according to an embodiment of the present invention;
fig. 7 is a fifth schematic structural diagram of an interference coordination apparatus according to an embodiment of the present invention;
fig. 8 is a sixth schematic structural diagram of an interference coordination apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
It should be noted that, in the embodiments of the present invention, words such as "exemplary" or "for example" are used to indicate examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.
The basic idea of inter-cell interference coordination is to coordinate the scheduling and allocation of resources among cells according to certain rules and methods to reduce inter-cell interference. In order to accomplish interference coordination between cells in time domain, the concept of ABS is introduced. For the ABS, only some necessary paging or system message signals are included, and the configured power is very low, so that the ABS is configured in the interfering base station to which the interfering cell belongs, and the interfered base station to which the interfered cell belongs schedules the user at the position of these ABSs, thereby implementing inter-cell interference coordination in the time domain. The traditional ABS coordination mode is used, and the terminal with fixed service mode like an unmanned aerial vehicle is used; in the ultra-dense network, interference coordination needs to be performed again every time the same service is executed, so that time is consumed for interference coordination every time, interference is always interfered after a serving cell is switched, and then the interference coordination is completed, that is, the interference coordination has hysteresis and seriously affects the service quality of a terminal.
Fig. 1 shows a scenario diagram of inter-cell interference. As shown in fig. 1, includes: the base station comprises a target base station 101, an interference base station 102, a user terminal 103 and an MEC server 104, wherein the coverage area of the target base station 101 is a target cell 1011, and the coverage area of the interference base station 102 is an interference cell 1021. In the scenario of fig. 1, the target cell 1011 covered by the target base station 101 is a serving cell of the user terminal 103, and provides an interference signal for the user terminal 103, the user terminal 103 is interfered by the interfering base station 102, and the target base station 101 provides an interference signal for the user terminal 103. The MEC server 104 has communication links with the target base station 101 and the interfering base station 102 for data transmission, and the MEC server 104 is mainly used for storing and transmitting the information related to interference coordination between the target base station 101 and the interfering base station 102. Here, it is to be noted that although one interfering cell 1021 associated with one interfering base station 102 is schematically shown in fig. 1, in other embodiments of the present invention, there may be a plurality of interfering base stations 102 and associated interfering cells 1021. In addition, the MEC server 104 may perform data transmission with a plurality of interfering base stations and a plurality of target base stations according to requirements, and the number of base stations connected to the MEC server 104 is not limited herein.
Based on the above technical background and the problems existing in the prior art, referring to fig. 2, an embodiment of the present invention provides an interference coordination method, including:
201. the method comprises the steps that an MEC server obtains a first data set when a target cell is used as a service cell of a terminal; wherein the first data set comprises: the service of the terminal, the identification of the interference cell and the interference coordination starting time of the target cell and the interference cell.
Optionally, before step 201, the method further includes:
s11, the MEC server receives the service data information of the terminal sent by the target base station, and identifies the service data information to determine that the service type of the terminal is a fixed mode service; wherein the service data information comprises at least any one of: the port number of the service data packet, the destination IP of the service data packet, the domain name of the service data packet and the service type identifier.
Or S12, the MEC server receives the confirmation information sent by the target base station; the confirmation information comprises the information that the service type of the terminal determined by the service data information identified by the target base station is the fixed mode service.
For example, the method for identifying the service type of the terminal may be implemented by negotiating with the terminal, and when the terminal starts to perform a fixed mode service, that is, a service required by a fixed mobile route fixed network, the terminal sends a specific identifier to the MEC server or the target base station, and the MEC server or the target base station determines the service type of the terminal by identifying the identifier; the MEC server or the target base station can also analyze information such as destination IP, port number or domain name of a data packet sent by the terminal, and identify the service type of the terminal; the service identification description of the terminal may also be sent to the MEC server or the target base station by the service application server of the terminal. For example, for an unmanned aerial vehicle executing a power line polling service, before starting operation, an onboard terminal of the unmanned aerial vehicle first sends a service identifier to a service application server, that is, the unmanned aerial vehicle executes a polling service by using a 4K camera this time, and a service route is X, then the service application server sends a service of the terminal to an MEC server or a base station, where the service includes a mobile service that the unmanned aerial vehicle is about to start a 20Mbps network requirement with a fixed mobile route being X.
Optionally, before step 201, the method further includes:
s21, the MEC server receives the identification of the target cell under the service of the terminal sent by the target base station.
And S22, when the MEC server determines that the identifier of the target cell under the service of the terminal is not recorded in the database, the MEC server sends the information recording request to the target base station, so that the target base station records the interference coordination starting time generated when the service of the terminal and the interference coordination initiated by the interference base station and the identifier of the interference cell according to the information recording request.
In one implementation, the MEC server sets the service of the terminal to perform the operation in the target base station for the first time according to whether the identifier of the target cell under the service of the terminal is recorded in the database or not, if not, the MEC server sets the service of the terminal to perform the operation in the target base station for the first time.
S23, the MEC server receives the interference coordination starting time fed back by the target base station and the identification of the interference cell, generates a first data set by combining the identification of the target cell under the service of the terminal, and stores the first data set in a database.
Specifically, the method for recording, by the MEC server, the first data set of the target cell as the serving cell for performing interference coordination with the interfering cell includes: the MEC server tracks the service cell of the terminal, once the terminal is switched to be served by the new service cell, the MEC server records the time (namely the interference coordination starting time) of the base station to which the new service cell belongs initiating the interference coordination with the base station to which the interference cell belongs and the identification of the interference cell each time, and stores the information of the relevant first data set after the terminal leaves the new service cell. For example, the MEC server stores information such as shown in table 1:
TABLE 1
Wherein the serving cell ID and the interfering cell ID are used to uniquely identify the serving cell and the interfering cell. The interference coordination starting time is relative time and is time performed on the basis of reference time after the terminal accesses the corresponding service cell; the reference time is a time when the terminal accesses the corresponding serving cell. For example, the serving CELL1, the interfering CELL4, and the interference coordination start time of 1min in table 1 may represent that the terminal is assumed to tap into the serving CELL1 at 8 hours 23 when the reference time is a certain day; then, the serving CELL1 and the interfering CELL4 start resource scheduling for the terminal service according to the negotiated ABS pattern at time 8 and 24 of the day; the serving CELL1 and the interfering CELL2 start resource scheduling for the terminal traffic according to the negotiated ABS pattern at 25/8 of the day. The data corresponding to sequence numbers 2 and 3 in table 1 are similar to sequence number 1, and are not described again here.
Optionally, before step 201, the method may further include:
s31, the MEC server receives a measurement report of the terminal sent by the current base station, wherein the measurement report carries the identification of the target cell of the handover.
Wherein the current base station covers the current cell.
S32, the MEC server determines the target cell to be the service cell of the terminal again according to the switched target cell identification and the target cell identification under the service of the terminal stored in the database.
202. Before determining to switch a serving cell of a terminal from a current cell to a target cell, an MEC server sends a first data set to a target base station;
203. and the target base station determines an interference base station according to the identification of the interference cell, and determines an ABS pattern for resource scheduling of the service of the terminal before the interference coordination starting time with the interference base station.
The target base station covers the target cell, and the interference base station covers the interference cell.
For example, referring to table 1, the MEC server sends respective corresponding first data sets to base stations to which CELL1, CELL2, and CELL3 belong, where a service of the terminal is a mobile service that is required by a 20Mbps network in which the stationary mobile route of the drone is about to start; if the MEC server sends the information that the interference CELL CELL4 interference coordination starting time is 1min and the interference CELL CELL2 interference coordination starting time is 2min to the base station to which the serving CELL CELL1 of the current terminal belongs, the base station to which the CELL1 belongs negotiates with the base stations to which the CELL4 and the CELL2 belong respectively according to the network quality state of the current CELL, the result of interference coordination with other CELLs and the requirement of providing 20Mbps network bandwidth for the terminal, and determines an ABS pattern used in coordination with CELL4 after 1min and an ABS pattern used in coordination with the CELL2 after 2 min. Then, when the terminal is switched to CELL1 for 1min, the base station to which CELL1 belongs and the base station to which CELL4 belongs perform resource scheduling according to the coordinated ABS pattern; and at 2min, the base station to which the CELL1 belongs and the base station to which the CELL2 belongs carry out resource scheduling according to the coordinated ABS pattern.
In one implementation manner, after the terminal moves, a base station to which a current serving cell belongs obtains a handover measurement report fed back by the terminal, and determines a new serving cell to which the terminal is to be handed over; and the switching information is sent to the MEC server; and the MEC server issues a first data set corresponding to the service cell to the base station to which the new service cell belongs, so that ABS pattern formulation is completed in advance according to the first data set by the base station to which the new service cell belongs and the base station to which each interference cell corresponding to the new service cell belongs, and resource scheduling of services of the terminal is completed according to the ABS pattern according to interference coordination starting time after the base station to which the interference cell belongs and the base station to which the service cell belongs are accessed into the service cell by the terminal.
For example, referring to table 1, the base station to which CELL1 belongs determines that the serving CELL is switched from CELL1 to CELL2 according to the handover measurement report, and the base station to which CELL1 belongs transmits information to the MEC server that the serving CELL of the terminal is to be switched from CELL1 to CELL 2; the MEC server sends a first data set corresponding to CELL2 to the base station to which CELL2 belongs according to the information, taking table 1 as an example, the first data set may include that the interference coordination start time of CELL2 and interference CELL1 is 0min, the interference coordination start time of CELL2 and interference CELL5 is 3min, the interference coordination start time of CELL2 and interference CELL6 is 5min, the interference coordination start time of CELL2 and interference CELL3 is 6min, the base station to which CELL2 belongs negotiates with the base stations to which CELL1, CELL5, CELL6 and CELL3 respectively belong, and performs resource scheduling according to the ABS patterns negotiated in advance between the base station to which CELL2 belongs and the base station to which CELL2 corresponds at the corresponding interference coordination start time.
In the above method, since a terminal having a fixed mode service is considered, interference coordination is always required to be performed again each time the same service is performed, and the interference coordination of the prior art always has a problem of hysteresis; the method comprises the steps that an MEC server firstly obtains a first data set when a target cell is used as a service cell of a terminal; wherein the first data set comprises: the service of the terminal, the identification of the interference cell and the interference coordination starting time of the service cell and the interference cell; the service of the terminal is a fixed mode service; so as to obtain the interference coordination record which is performed by the terminal when the target cell executes the fixed mode service; then, before determining to switch the serving cell of the terminal from the current cell to the target cell, sending the first data set to the target base station; the target base station determines an interference base station according to the identification of the interference cell, and determines an ABS pattern for resource scheduling of the service of the terminal before the interference coordination starting time with the interference base station; therefore, the interference coordination of the fixed mode service aiming at the terminal can be completed in advance, so that the terminal cannot generate interference when the terminal executes the fixed mode service again in the target cell, and the situation of interference before coordination is avoided.
In the embodiment of the present invention, the interference coordination apparatus may be divided into functional modules according to the method embodiment, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. It should be noted that, the division of the modules in the embodiment of the present invention is schematic, and is only a logic function division, and there may be another division manner in actual implementation.
In the case of dividing each functional module according to each function, fig. 3 shows a schematic diagram of a possible structure of the interference coordination apparatus 30 in the above embodiment, which is applied to an MEC server or a chip of the MEC server, where the interference coordination apparatus 30 includes:
an obtaining unit 301, configured to obtain a first data set when a target cell is used as a serving cell of a terminal; wherein the first data set comprises: the service of the terminal, the identification of the interference cell and the interference coordination starting time of the target cell and the interference cell.
A processing unit 302, configured to send the first data set acquired by the acquiring unit 301 to the target base station before determining to switch the serving cell of the terminal from the current cell to the target cell; the target base station determines an interference base station according to the identification of the interference cell, and determines an ABS pattern for resource scheduling of the service of the terminal before the interference coordination starting time with the interference base station; the target base station covers the target cell, and the interference base station covers the interference cell.
In an exemplary scheme, the obtaining unit 301 is further configured to receive service data information of the terminal sent by the target base station.
The processing unit 302 is further configured to identify the service data information acquired by the acquiring unit 301 to determine that the service type of the terminal is a fixed mode service; wherein the service data information comprises at least any one of: the port number of the service data packet, the destination IP of the service data packet, the domain name of the service data packet and the service type identifier.
Or, the obtaining unit 301 is further configured to receive acknowledgement information sent by the target base station; the confirmation information comprises the information that the service type of the terminal determined by the service data information identified by the target base station is the fixed mode service.
In an exemplary scheme, the obtaining unit 301 is further configured to receive an identifier of a target cell under a service of a terminal, where the identifier is sent by a target base station.
A processing unit 302, configured to determine that the identifier of the target cell under the service of the terminal acquired by the acquiring unit 301 is not recorded in the database.
A sending unit 303, configured to send an information recording request to the target base station when the processing unit 302 determines that the identifier of the target cell under the service of the terminal is not recorded in the data port, so that the target base station records, according to the information recording request, interference coordination start time generated when the service of the terminal and interference coordination initiated by the interference base station are coordinated, and the identifier of the interference cell.
The obtaining unit 301 is further configured to receive an interference coordination start time and an identifier of an interfering cell, which are fed back by the target base station.
A processing unit 302, configured to combine the interference coordination start time and the identifier of the interfering cell received by the obtaining unit 301 with the identifier of the target cell under the service of the terminal to generate a first data set, and store the first data set in a database.
In an exemplary scheme, the obtaining unit 301 is further configured to receive a measurement report of the terminal sent by the current base station, where the measurement report carries an identifier of a target cell for handover; wherein the current base station covers the current cell.
A processing unit 302, configured to determine, according to the identifier of the target cell for handover acquired by the acquiring unit 301 and the identifier of the target cell under the service of the terminal stored in the database, that the target cell is to be used as the serving cell of the terminal again.
Since the interference coordination apparatus in the embodiment of the present invention may be applied to implement the method embodiment, the technical effect obtained by the interference coordination apparatus may also refer to the method embodiment, and the details of the embodiment of the present invention are not repeated herein.
In the case of dividing each functional module according to each function, fig. 4 is a schematic diagram of a possible structure of the interference coordination apparatus 40 in the above embodiment, which is applied to a target base station or a chip of the target base station, where the interference coordination apparatus 40 includes:
an obtaining unit 401, configured to receive a first data set when a target cell is used as a serving cell of a terminal before determining to switch the serving cell of the terminal from a current cell to the target cell; wherein the first data set comprises: the service of the terminal, the identification of the interference cell and the interference coordination starting time of the service cell and the interference cell.
A processing unit 402, configured to determine an interfering base station according to the identifier of the interfering cell acquired by the acquiring unit 401, and control the target base station and the interfering base station to determine an ABS pattern for resource scheduling of a service of the terminal before the interference coordination start time acquired by the acquiring unit 401; wherein, the target base station covers the target cell; the interfering base station covers the interfering cell.
In an exemplary scheme, the obtaining unit 401 is further configured to obtain service data information of the terminal.
A sending unit 403, configured to send the service data information of the terminal obtained by the obtaining unit 401 to the MEC server, so that the MEC server determines, according to the service data information, that the service type of the terminal is a fixed mode service; wherein the service data information comprises at least any one of: the port number of the service data packet, the destination IP of the service data packet, the domain name of the service data packet and the service type identifier.
Or, the obtaining unit 401 is further configured to obtain service data information of the terminal.
A processing unit 402, configured to identify the service data information generation confirmation information acquired by the acquisition unit 401, and send the information to the MEC server; wherein the confirmation information includes that the service type of the terminal is a fixed mode service.
In an exemplary scheme, the sending unit 403 is further configured to send an identifier of a target cell under the service of the terminal to the MEC server; so that the MEC server sends an information recording request to the obtaining unit 401 when determining that the identifier of the target cell under the service of the terminal is not recorded in the database.
A processing unit 402, configured to record, according to the information recording request received by the obtaining unit 401, interference coordination start time and an identifier of an interfering cell, which are generated when a service for a terminal and interference coordination initiated by an interfering base station are coordinated.
A sending unit 403, configured to feed back the interference coordination start time and the identifier of the interfering cell recorded by the processing unit 402 to the MEC server; and enabling the MEC server to combine the interference coordination starting time fed back by the target base station and the identification of the interference cell with the identification of the target cell under the service of the terminal to generate a first data set, and storing the first data set in a database.
Since the interference coordination apparatus in the embodiment of the present invention may be applied to implement the method embodiment, the technical effect obtained by the interference coordination apparatus may also refer to the method embodiment, and the details of the embodiment of the present invention are not repeated herein.
Fig. 5 shows a schematic diagram of a possible configuration of the interference coordination device 30 according to the above-described exemplary embodiment, in the case of an integrated unit. The interference coordination apparatus 30 includes: a processing module 501, where the processing module 501 is configured to control and manage an operation of the interference coordination apparatus 30; for example, the processing module 501 is used to support the interference coordination apparatus 30 to execute the process 202 in fig. 2. In addition, the interference coordination apparatus 30 may further include: a communication module 502 and a storage module 503. Wherein, the communication module 502 is configured to support communication between the interference coordination apparatus 30 and other entities; the storage module 503 is used for storing program codes and data of the interference coordination device 30.
The processing module 501 may be a processor or a controller, and may be, for example, a Central Processing Unit (CPU), a general-purpose processor, a Digital Signal Processor (DSP), an application-specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a DSP and a microprocessor, or the like. The communication module 502 may be a transceiver, a transceiving circuit or a communication interface, etc. The storage module 503 may be a memory.
When the processing module 501 is a processor as shown in fig. 6, the communication module 502 is a transceiver as shown in fig. 6, and the storage module 503 is a memory as shown in fig. 6, the interference coordination device 30 according to the embodiment of the present application may be the following interference coordination device 30.
In another example, referring to fig. 6, the interference coordination apparatus 30 includes: a processor 601. The processor 601 is configured to execute application program codes, so as to implement the interference coordination method in the embodiment of the present application. As shown in fig. 6, in another example, the interference coordination apparatus 30 may further include a memory 603, where the memory 603 is used to store an application program code for executing the scheme of the present application. Wherein the memory 603 may be provided separately or integrated in the processor 601. In addition, the interference coordination apparatus 30 may further include a transceiver 602, where the transceiver 602 is configured to execute the method implemented by the communication module 502 to implement communication with other devices. The processor 601, the transceiver 602, and the memory 603 may be coupled to each other, for example, by a bus 604. The bus 604 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The processor 601 may be a general processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs in accordance with the present invention.
The memory 603 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
The memory 603 is used for storing application program codes for executing the scheme of the application, and the processor 601 controls the execution. The transceiver 602 is configured to receive content input from an external device, and the processor 601 is configured to execute application program codes stored in the memory 603, so as to implement the interference coordination method in the embodiment of the present application.
Fig. 7 shows a schematic diagram of a possible configuration of the interference coordination unit 40 according to the above-described exemplary embodiment, in the case of an integrated unit. The interference coordination apparatus 40 includes: a processing module 701, where the processing module 701 is configured to control and manage an operation of the interference coordination apparatus 40; for example, the processing module 701 is configured to support the interference coordination apparatus 40 to perform the process 203 in fig. 2. In addition, the interference coordination apparatus 40 may further include: a communication module 702 and a memory module 703. Wherein, the communication module 702 is configured to support communication between the interference coordination apparatus 40 and other entities; the memory module 703 is used for storing program codes and data of the interference coordination device 40.
The processing module 701 may be a processor or a controller, such as a Central Processing Unit (CPU), a general-purpose processor, a Digital Signal Processor (DSP), an application-specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, a transistor logic device, a hardware component, or any combination thereof. Which may implement or perform the various illustrative logical blocks, modules, and circuits described in connection with the disclosure. A processor may also be a combination of computing functions, e.g., comprising one or more microprocessors, a DSP and a microprocessor, or the like. The communication module 702 may be a transceiver, a transceiver circuit or a communication interface, etc. The storage module 703 may be a memory.
When the processing module 701 is a processor as shown in fig. 8, the communication module 702 is a transceiver as shown in fig. 8, and the storage module 703 is a memory as shown in fig. 8, the interference coordination apparatus 40 according to the embodiment of the present application may be the following interference coordination apparatus 40.
In another example, referring to fig. 8, the interference coordination apparatus 40 includes: a processor 801. The processor 801 is configured to execute application program codes, so as to implement the interference coordination method in the embodiment of the present application. As shown in fig. 8, in another example, the interference coordination apparatus 40 may further include a memory 803, and the memory 803 is used for storing an application program code for executing the scheme of the present application. Wherein the memory 803 may be provided separately or integrated in the processor 801. In addition, the interference coordination apparatus 40 may further include a transceiver 802, where the transceiver 802 is configured to perform the method implemented by the communication module 702 to implement communication with other devices. The processor 801, transceiver 802, and memory 803 may be coupled to each other, for example, by a bus 804. The bus 804 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown, but this does not mean that there is only one bus or one type of bus.
The processor 801 may be a general-purpose Central Processing Unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more ics for controlling the execution of programs in accordance with the present disclosure.
The memory 803 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disc, laser disc, optical disc, digital versatile disc, blu-ray disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer.
The memory 803 is used for storing application program codes for executing the scheme of the application, and the processor 801 controls the execution. The transceiver 802 is configured to receive content input from an external device, and the processor 801 is configured to execute application program codes stored in the memory 803, thereby implementing the interference coordination method in the embodiment of the present application.
It should be understood that, in the various embodiments of the present application, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described apparatuses, devices and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, a division of a unit is merely a logical division, and an actual implementation may have another division, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). Computer-readable storage media can be any available media that can be accessed by a computer or can comprise one or more data storage devices, such as servers, data centers, and the like, that can be integrated with the media. The usable medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.
The embodiment of the present invention further provides a computer program product, which can be directly loaded into the memory and contains software codes, and the computer program product can be loaded and executed by a computer to implement the interference coordination method.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (17)
1. An interference coordination method, comprising:
the method comprises the steps that an MEC server obtains a first data set when a target cell is used as a service cell of a terminal; wherein the first data set comprises: the service of the terminal, the identification of the interference cell and the interference coordination starting time of the target cell and the interference cell;
the MEC server sends the first data set to a target base station before determining to switch a serving cell of the terminal from a current cell to the target cell; enabling the target base station to determine an interference base station according to the identification of the interference cell, and determining an ABS pattern for resource scheduling of the service of the terminal before the interference coordination starting time with the interference base station; wherein the target base station covers the target cell, and the interfering base station covers the interfering cell.
2. The interference coordination method according to claim 1, wherein before the MEC server obtains the first data set when the target cell is used as the serving cell of the terminal, the method further comprises:
the MEC server receives the service data information of the terminal sent by the target base station, identifies the service data information and determines that the service type of the terminal is a fixed mode service; wherein the service data information includes at least any one of: the method comprises the steps of sending a port number of a service data packet, sending a destination IP of the service data packet, sending a domain name of the service data packet and a service type identifier;
alternatively, the first and second electrodes may be,
the MEC server receives confirmation information sent by the target base station; wherein the confirmation information includes information that the service type of the terminal determined by the target base station recognizing the service data information is a fixed mode service.
3. The interference coordination method according to claim 1 or 2, wherein before the MEC server obtains the first data set when the target cell is used as the serving cell of the terminal, the method further comprises:
the MEC server receives the identification of the target cell under the service of the terminal, which is sent by the target base station;
when the MEC server determines that the identification of the target cell under the service of the terminal is not recorded in a database, an information recording request is sent to the target base station, so that the target base station records the interference coordination starting time and the identification of the interference cell generated when the service of the terminal is coordinated with the interference initiated by the interference base station according to the information recording request;
and the MEC server receives the interference coordination starting time and the identification of the interference cell fed back by the target base station, generates the first data set by combining the identification of the target cell under the service of the terminal, and stores the first data set to the database.
4. The interference coordination method according to any one of claims 1 or 2, wherein before the MEC server obtains the first data set when the target cell is used as the serving cell of the terminal, the method further comprises:
the MEC server receives a measurement report of the terminal sent by a current base station, wherein the measurement report carries the identifier of the target cell to be switched; wherein the current base station covers the current cell;
and the MEC server determines that the target cell is to be used as the service cell of the terminal again according to the switched target cell identifier and the target cell identifier under the service of the terminal stored in the database.
5. An interference coordination method, comprising:
the method comprises the steps that before a target base station determines to switch a serving cell of a terminal from a current cell to a target cell, the target base station receives a first data set when the target cell is used as the serving cell of the terminal; wherein the first data set comprises: the service of the terminal, the identification of an interference cell and the interference coordination starting time of the service cell and the interference cell;
the target base station determines an interference base station according to the identification of the interference cell, and controls the target base station and the interference base station to determine an ABS pattern for resource scheduling of the service of the terminal before the interference coordination starting time; wherein the target base station covers the target cell; the interfering base station covers the interfering cell.
6. The interference coordination method according to claim 5, wherein before the target base station receives the first data set when the target cell is used as the serving cell of the terminal, the method further comprises:
the target base station sends the acquired service data information of the terminal to an MEC server so that the MEC server can determine that the service type of the terminal is a fixed mode service according to the service data information; wherein the service data information includes at least any one of: the method comprises the steps of sending a port number of a service data packet, sending a destination IP of the service data packet, sending a domain name of the service data packet and a service type identifier;
alternatively, the first and second electrodes may be,
the target base station acquires the service data information of the terminal, identifies the service data information, generates confirmation information and sends the confirmation information to the MEC server; wherein the confirmation information includes that the service type of the terminal is a fixed mode service.
7. The interference coordination method according to claim 5 or 6, wherein before the target base station receives the first data set when the target cell is used as the serving cell of the terminal, the method further comprises:
the target base station sends the identification of the target cell under the service of the terminal to an MEC server; so that the MEC server sends an information recording request to the target base station when determining that the identifier of the target cell under the service of the terminal is not recorded in a database;
the target base station records the interference coordination starting time and the identification of an interference cell generated when the service aiming at the terminal is coordinated with the interference initiated by the interference base station according to the information recording request, and feeds the interference coordination starting time and the identification back to the MEC server; and enabling the MEC server to combine the interference coordination starting time and the identification of the interference cell fed back by the target base station with the identification of the target cell under the service of the terminal to generate the first data set, and storing the first data set to the database.
8. An interference coordination device applied to an MEC server or a chip of the MEC server, comprising:
an obtaining unit, configured to obtain a first data set when a target cell is used as a serving cell of a terminal; wherein the first data set comprises: the service of the terminal, the identification of the interference cell and the interference coordination starting time of the target cell and the interference cell;
a processing unit, configured to send the first data set acquired by the acquiring unit to a target base station before determining to switch a serving cell of the terminal from a current cell to the target cell; enabling the target base station to determine an interference base station according to the identification of the interference cell, and determining an ABS pattern for resource scheduling of the service of the terminal before the interference coordination starting time with the interference base station; wherein the target base station covers the target cell, and the interfering base station covers the interfering cell.
9. The interference coordination device of claim 8, comprising:
the acquiring unit is further configured to receive service data information of the terminal sent by the target base station;
the processing unit is further configured to identify the service data information acquired by the acquisition unit and determine that the service type of the terminal is a fixed mode service; wherein the service data information includes at least any one of: the method comprises the steps of sending a port number of a service data packet, sending a destination IP of the service data packet, sending a domain name of the service data packet and a service type identifier;
alternatively, the first and second electrodes may be,
the acquiring unit is further configured to receive acknowledgement information sent by the target base station; wherein the confirmation information includes information that the service type of the terminal determined by the target base station recognizing the service data information is a fixed mode service.
10. The interference coordination device according to claim 8 or 9, comprising:
the acquiring unit is further configured to receive an identifier of the target cell under the service of the terminal, which is sent by the target base station;
the processing unit is configured to determine that the identifier of the target cell under the service of the terminal acquired by the acquiring unit is not recorded in a database;
a sending unit, configured to send an information recording request to the target base station when the processing unit determines that the identifier of the target cell under the service of the terminal is not recorded in the data port, so that the target base station records, according to the information recording request, the interference coordination start time and the identifier of the interference cell, which are generated when the service of the terminal and interference coordination initiated by the interference base station are coordinated;
the obtaining unit is further configured to receive the interference coordination start time and an identifier of an interfering cell, which are fed back by the target base station;
the processing unit is configured to combine the interference coordination start time and the identifier of the interfering cell received by the obtaining unit with the identifier of the target cell under the service of the terminal to generate the first data set, and store the first data set in the database.
11. The interference coordination device according to any one of claims 8 or 9, comprising:
the obtaining unit is further configured to receive a measurement report of the terminal sent by a current base station, where the measurement report carries an identifier of the target cell to be switched; wherein the current base station covers the current cell;
the processing unit is configured to determine, according to the identifier of the target cell for handover acquired by the acquiring unit and the identifier of the target cell under the service of the terminal stored in the database, that the target cell is to be used as the serving cell of the terminal again.
12. An interference coordination device applied to a target base station or a chip in the target base station, comprising:
an obtaining unit, configured to receive a first data set when a target cell is used as a serving cell of a terminal before determining to switch the serving cell of the terminal from a current cell to the target cell; wherein the first data set comprises: the service of the terminal, the identification of an interference cell and the interference coordination starting time of the service cell and the interference cell;
a processing unit, configured to determine an interfering base station according to the identifier of the interfering cell acquired by the acquiring unit, and control the target base station and the interfering base station to determine an ABS pattern for resource scheduling of a service of the terminal before the interference coordination start time acquired by the acquiring unit; wherein the target base station covers the target cell; the interfering base station covers the interfering cell.
13. The interference coordination device of claim 12, comprising:
the acquiring unit is further configured to acquire service data information of the terminal;
a sending unit, configured to send the service data information of the terminal obtained by the obtaining unit to an MEC server, so that the MEC server determines, according to the service data information, that the service type of the terminal is a fixed mode service; wherein the service data information includes at least any one of: the method comprises the steps of sending a port number of a service data packet, sending a destination IP of the service data packet, sending a domain name of the service data packet and a service type identifier;
alternatively, the first and second electrodes may be,
the acquiring unit is further configured to acquire the service data information of the terminal;
the processing unit is used for identifying the service data information acquired by the acquisition unit, generating confirmation information and sending the confirmation information to the MEC server; wherein the confirmation information includes that the service type of the terminal is a fixed mode service.
14. The interference coordination device according to claim 12 or 13, comprising:
a sending unit, configured to send the identifier of the target cell under the service of the terminal to an MEC server; so that the MEC server sends an information recording request to the acquisition unit when determining that the identifier of the target cell under the service of the terminal is not recorded in a database;
the processing unit is configured to record, according to the information recording request received by the obtaining unit, the interference coordination start time and an identifier of an interfering cell, which are generated when a service for the terminal and interference coordination initiated by the interfering base station are coordinated;
the sending unit is configured to feed back the interference coordination start time and the identifier of the interfering cell recorded by the processing unit to the MEC server; and enabling the MEC server to combine the interference coordination starting time and the identification of the interference cell fed back by the target base station with the identification of the target cell under the service of the terminal to generate the first data set, and storing the first data set to the database.
15. An interference coordination device, characterized in that the structure of the interference coordination device comprises a processor for executing program instructions to make the interference coordination device execute the interference coordination method according to any one of claims 1-4.
16. An interference coordination device, characterized in that the structure of the interference coordination device comprises a processor for executing program instructions to make the base station execute the interference coordination method according to any one of claims 5-7.
17. A computer storage medium having computer program code stored therein, which when run on an interference coordination apparatus causes the interference coordination apparatus to perform the interference coordination method according to any one of claims 1-4;
alternatively, the first and second electrodes may be,
the computer program code, when run on an interference coordination apparatus, causes the interference coordination apparatus to perform the interference coordination method of any of claims 5-7.
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