CN110868759A

CN110868759A - Interference coordination method and device, and base station

Info

Publication number: CN110868759A
Application number: CN201911187665.7A
Authority: CN
Inventors: 张勍; 冯毅; 曹亢; 陈浩
Original assignee: China United Network Communications Group Co Ltd
Current assignee: China United Network Communications Group Co Ltd
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2020-03-06
Anticipated expiration: 2039-11-28
Also published as: CN110868759B

Abstract

The embodiment of the invention discloses an interference coordination method, an interference coordination device and a base station, and relates to the technical field of communication. The interference coordination among the cells can be realized by adjusting the ABS patterns among the cells in time by utilizing the priority of the user service. The method comprises the following steps: determining that there is no intersection between the acquired first ABS pattern set usable by the interfered cell and a second ABS pattern set available by the interfering cell; acquiring a second comprehensive priority and a third ABS pattern set of user services of at least one other cell, and determining the sequence of the first comprehensive priority and the at least one second comprehensive priority; determining a target cell among the at least one other cell according to the ranking; and when the third ABS pattern set of the target cell has an intersection with the first ABS pattern set, determining a target first ABS pattern for the interfered cell in the intersection of the third ABS pattern set of the target cell and the first ABS pattern set, and sending the target first ABS pattern to the interfered cell. The embodiment of the invention is applied to a network system.

Description

Interference coordination method and device, and base station

Technical Field

The embodiment of the invention relates to the technical field of communication, in particular to an interference coordination method, an interference coordination device and a base station.

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 conventional interference coordination scheme, if the interfering cell cannot provide an available ABS pattern for the interfered cell, the interference coordination fails, thereby affecting data transmission of user traffic.

Disclosure of Invention

Embodiments of the present invention provide an interference coordination method, an apparatus, and a base station, which can implement interference coordination between cells by adjusting an ABS pattern between cells in time according to a priority of a user service.

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: acquiring a first comprehensive priority and a first Almost Blank Subframe (ABS) pattern set of user services of an interfered cell; wherein the first ABS pattern set includes at least one first ABS pattern available to the interfered cell; determining that there is no intersection between the first set of ABS patterns and the second set of ABS patterns; acquiring a second comprehensive priority and a third ABS pattern set of user services of at least one other cell, and determining the sequence of the first comprehensive priority and the at least one second comprehensive priority; determining a target cell among the at least one other cell according to the ranking; wherein the second ABS pattern set comprises at least one second ABS pattern that the interfering cell can provide for the interfered cell; other cells are cells which perform interference coordination when the other cells and the interference cell are taken as the interfered cell; the other cells are respectively in one-to-one correspondence with the second comprehensive priority and the third ABS pattern sets; when the third ABS pattern set of the target cell has an intersection with the first ABS pattern set, determining a target first ABS pattern for the interfered cell in the intersection of the third ABS pattern set of the target cell and the first ABS pattern set, and sending the target first ABS pattern to the interfered cell; when the third ABS pattern set of the target cell is interference coordinated with the interfering cell, the target cell provides the intersection of the usable ABS pattern set for the interfering cell and the idle ABS pattern set of the interfering cell.

In the above method, when the user service is interfered, interference coordination between the serving cell (i.e. interfered cell) where the user is located and the interfering cell is required; therefore, when it is confirmed that the second ABS pattern set that can be provided by the interfering cell cannot satisfy the interfered cell in the interference coordination process; the invention uses the integrated service priority of the user service of other cells which are in interference coordination with the interference cell to promote the interference coordination between the interfered cell and the interference cell; firstly, acquiring a second comprehensive priority and a third ABS pattern set of user services corresponding to at least one other cell; determining a target cell in at least one other cell by utilizing the comprehensive priority of the user service in each other cell and the comprehensive priority of the user service in the interfered cell; then, a target first ABS pattern is determined for the interfered cell in an intersection of the third set of ABS patterns and the first set of ABS patterns of the target cell, and the target first ABS pattern is transmitted to the interfered cell. Therefore, by sequencing the comprehensive priorities of the user services of the interfered cell and other cells participating in interference coordination, and further coordinating the available ABS patterns of the interfered cell from other cells through sequencing, the interference coordination between the interfered cell and the interfering cell is realized on the premise of not influencing the normal user service transmission of other cells.

In a second aspect, an interference coordination apparatus is provided, which includes: the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring a first comprehensive priority of user services of an interfered cell and a first Almost Blank Subframe (ABS) pattern set; wherein the first ABS pattern set includes at least one first ABS pattern available to the interfered cell; the processing unit is used for determining that the second ABS pattern set does not have intersection with the first ABS pattern set acquired by the acquisition unit; wherein the second set of ABS patterns comprises at least one second ABS pattern that the interfering cell may provide for the interfered cell; the acquiring unit is used for determining that the first ABS pattern set and the second ABS pattern set acquired by the acquiring unit do not have an intersection, and acquiring a second comprehensive priority and a third ABS pattern set of user services of at least one other cell; the processing unit is used for determining the sequencing of the first comprehensive priority and the at least one second comprehensive priority acquired by the acquisition unit; determining a target cell among the at least one other cell according to the ranking; the other cells are cells which perform interference coordination when the other cells and the interference cell are taken as interfered cells; the other cells are respectively in one-to-one correspondence with the second comprehensive priority and the third ABS pattern sets; the processing unit is further used for determining a target first ABS pattern for the interfered cell in the intersection of the third ABS pattern set and the first ABS pattern set of the target cell when the third ABS pattern set and the first ABS pattern set of the target cell have intersection; a sending unit, configured to send the target first ABS pattern determined by the processing unit to an interfered cell; when the third ABS pattern set of the target cell is interference coordinated with the interfering cell, the target cell provides the intersection of the usable ABS pattern set for the interfering cell and the idle ABS pattern set of the interfering 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 third aspect, an interference coordination apparatus is provided, where the interference coordination apparatus includes a processor in a structure, and the processor is configured to execute program instructions to cause the interference coordination apparatus to perform the method of the first aspect.

In a fourth aspect, a base station is provided, which is applied to an interfering base station and includes the interference coordination apparatus as described in the second aspect and the third aspect.

In a fifth 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 described above.

A sixth aspect provides a computer program product having stored thereon the above computer software instructions, which, when run on an interference coordination apparatus, cause the interference coordination apparatus to execute a program as the method of the first aspect 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 schematic structural diagram of another interference coordination apparatus according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of another 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. With the conventional interference coordination scheme, if the interfering cell cannot provide an available ABS pattern for the interfered cell, the interference coordination fails, thereby affecting data transmission of user services.

In addition, with the rapid development of mobile internet services and the rise of 5G + vertical industry services, richer service types gradually appear, and the requirements on mobile networks, especially service guarantee requirements are more diverse, for example, smart applications serving security detection of a garden, a community covering a garden entrance needs higher guarantee priority, a network slice dedicated to a power grid for safe operation of the power grid needs higher guarantee priority, the comprehensive priority of user services serving mechanical arm control inside a smart factory is higher than that of user services serving robots for environment monitoring inside the factory, and business applications of enterprise users for office use inside the enterprise are higher than those of business applications for entertainment use. Therefore, the present invention considers the realization of inter-cell interference coordination by utilizing the priority of user traffic.

Fig. 1 shows a scenario diagram of inter-cell interference. As shown in fig. 1, includes: interfered base station 101, interfering base station 102, user terminal 103, user terminal 104, user terminal 105, other base stations 106, and other base stations 107. The coverage area of the interfered base station 101 is an interfered cell 1011; the area covered by the interfering base station 102 is an interfering cell 1021; the area covered by other base stations 106 is other cells 1061; the cell covered by the other base station 107 is 1071. In the scenario of fig. 1, the interfered base station 101 serves the user terminal 103 to provide an effective signal for the user terminal 103, and the user terminal 103 is interfered by the interfering base station 102 to provide an interference signal for the user terminal 103. The interfering base station 102 serves the user terminal 104 and the user terminal 105, and provides effective signals for the user terminal 104 and the user terminal 105, the other base stations 106 provide interfering signals for the user terminal 104, and the other base stations 107 provide interfering signals for the user terminal 105; here, it should be noted that although fig. 1 schematically illustrates one interfering cell 1021 associated with one interfering base station 102, in other embodiments of the present invention, a plurality of interfering base stations 102 and associated interfering cells 1021 may exist, and the other base stations 106 and the other base stations 107 are the same and will not be described again.

Based on the foregoing 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, which is applied to an interference coordination apparatus, where the interference coordination apparatus is an interference base station or a chip in the interference base station, and the method includes:

201. acquiring a first comprehensive priority and a first Almost Blank Subframe (ABS) pattern set of user services of an interfered cell; wherein the first set of ABS patterns includes at least one first ABS pattern available to the interfered cell.

Specifically, the first composite priority is determined by at least one or more of: the level of the user service, the priority of the user service and the level of the network slice where the user service is located.

Preferably, the method may further include acquiring a mutual interference parameter of the interfered cell. It should be noted that, whether to allow the interfered cell to perform interference coordination with the interfering cell is defined by the mutual interference parameter. One of the expression modes of the mutual interference parameters is whether a coordinatable interference cell exists when the interfered cell, the interference cell or other cells are used as the interfered cell and need interference coordination; the second expression mode of the mutual interference parameter is to directly set a value, such as the mutual interference parameter N; the mutual interference parameter N may be a value set for the interfered cell in the embodiment of the present invention. Illustratively, the mutual interference parameter N (N is a natural number) is set to a value set for the interfered cell, and when N is 0, it indicates that interference coordination between the interfered cell and the interfering cell is not allowed; when N > 0, it indicates that interference coordination is allowed between the interfered cell and the interfering cell. Then, the mutual interference parameter when the other cell is used as the interfered cell to perform interference coordination with the interfering cell corresponding to the interfered cell is N-1, and when N-1 is 0, it indicates that the interfering cell is not allowed to perform interference coordination with the other cell; when N-1 > 0, it means that interference coordination is allowed between the interfering cell and other cells. When other cells are used as interfered cells, the corresponding interfering cell is used as the interfered cell and needs to perform interference coordination with the corresponding interfering cell, the mutual interference parameter is N-2, and when N-2 is 0, the interference coordination between the interfering cell and other cells is not allowed; when N-2 > 0, it means that interference coordination is allowed between the interfering cell and other cells. By analogy, the description is omitted.

202. Determining that there is no intersection of the first set of ABS patterns and the second set of ABS patterns; wherein the second set of ABS patterns comprises at least one second ABS pattern that the interfering cell may provide for the interfered cell.

203. Acquiring a second comprehensive priority and a third ABS pattern set of user services of at least one other cell, and determining the sequence of the first comprehensive priority and the at least one second comprehensive priority; determining a target cell among the at least one other cell according to the ranking; the other cells are cells which perform interference coordination when the other cells and the interference cell are taken as interfered cells; the other cells are respectively in one-to-one correspondence with the second integrated priority and the third ABS pattern set.

Determining a target cell in at least one other cell according to the ranking specifically includes:

2031. and acquiring the sequence of a second comprehensive priority lower than the first comprehensive priority from low to high in the sequence.

2032. And successively determining the target cell of the third ABS pattern set with intersection with the first ABS pattern set according to the sequence from the low to the high of the second comprehensive priority in the sequence.

It should be noted that, searching is performed in a sequence from low to high, when the mutual interference parameter is added, the search is stopped when a target cell of a third ABS pattern set intersecting with the first ABS pattern set is first confirmed in at least one other cell, and when the interfering cell as an interfered cell needs to perform re-interference coordination with the target cell, if an ABS pattern set usable by the target cell does not intersect with an idle ABS pattern set of the interfering cell, it needs to determine whether to continue the re-interference coordination by judging the mutual interference parameter. The first situation is as follows: the mutual interference parameter of the interfering cell is '0' or 'no interfering cell exists in the target cell'; that is, when the target cell is regarded as the interfered cell, re-interference coordination cannot be performed with the corresponding interfering cell (here, in order to distinguish from the interfering cell in the present invention, the interfering cell corresponding to the target cell as the interfered cell is referred to as a second interfering cell), and even if there is an intersection between the third ABS pattern set of the target cell and the first ABS pattern set, the existing intersection cannot be used for interference coordination between the interfered cell and the interfering cell. Case two: the mutual interference parameter of the interference cell is greater than '0' or is 'the target cell has an interference cell'; that is, when the target cell is regarded as the interfered cell, re-interference coordination can be performed with the corresponding second interfering cell. And after the target cell and the second interference cell successfully perform interference coordination again, releasing available ABS patterns after the interference coordination again between the interference cell and the target cell.

In addition, when the situation is the state of the first case, the search is continued from the target cell searched for the first time in the order from low to high, the target cell of the third ABS pattern set intersecting with the first ABS pattern set is confirmed for the second time in at least one other cell, and whether the intersection of the third ABS pattern set of the target cell confirmed for the second time and the first ABS pattern set can be used for interference coordination between the interfered cell and the interfering cell is continuously determined in the manner described above.

204. When the third ABS pattern set of the target cell has an intersection with the first ABS pattern set, determining a target first ABS pattern for the interfered cell in the intersection of the third ABS pattern set of the target cell and the first ABS pattern set, and sending the target first ABS pattern to the interfered cell; when the third ABS pattern set of the target cell is interference coordinated with the interfering cell, the target cell provides the intersection of the usable ABS pattern set for the interfering cell and the idle ABS pattern set of the interfering cell.

Before transmitting the target first ABS pattern to the interfered cell, the method further includes:

and S1, sending a re-interference coordination request to the target cell.

And S11, releasing the third ABS pattern set if a negotiation success message responding to the re-interference coordination request is received.

For example, the re-interference coordination request may carry a new ABS pattern set available for the interfering cell and a user service identifier; the target cell determines whether an intersection exists between the available new ABS pattern set used for the user service and the available new ABS pattern set of the interference cell according to the user service identifier, if the intersection exists, one ABS pattern can be selected from the intersection as a fourth ABS pattern, and a negotiation success message is sent to the interference cell; the renegotiation success message may carry the fourth ABS pattern, or may be sent separately, which is not limited herein, so that the interfering cell and the target cell perform data transmission based on the fourth ABS pattern.

Or, S12, if receiving a negotiation failure message in response to the re-interference coordination request, not releasing the third ABS pattern set, and deleting the target cell in the sequence and the corresponding third ABS pattern set and the second comprehensive priority;

after step S12, the method further includes: the target cell is re-determined among the at least one other cell according to the ranking.

It should be noted that, whether the fourth ABS pattern can be generated through negotiation is mainly determined by the set mutual interference parameter, if the mutual interference parameter carried in the re-coordination request is 0, the target cell does not perform re-interference coordination with the interfering cell, otherwise, the target cell performs interference coordination with the target cell to generate the fourth ABS pattern.

For better understanding, an interference coordination method provided by the embodiment of the present invention is now exemplarily described, which specifically includes the following steps:

assuming that the interfered cell C1 is ranked a, the network slice serving the user is ranked b, the user is ranked C, the traffic priority is d, and the integrated priority may be (x1 a + y1 b) (x 2C + y2 d), where x1 is greater than or equal to 0, y1 is greater than or equal to 0, x1+ y1 ≠ 0, 0 is greater than or equal to x2 and less than or equal to 1, 0 is greater than or equal to y2 and less than or equal to 1, and x2+ y2 is equal to 1. The corresponding first integrated priority of the user service U1 of the cell C1 is N1, and the first ABS pattern set Q1 available for the C1 is AYYYYYY, YAYYYYY, yyyyyyy, where a represents ABS, and the mutual interference parameter is N, and N is greater than or equal to 0. The method specifically comprises the following three examples:

example one: if the second ABS pattern set Q21 generated by cell C2 that is potentially available for cell C1 is YYAYYYY, yyyayy; the intersection of Q21 and Q1 is YYAYYYY, then cell C2 sends YYAYYYY as the negotiated first ABS pattern to C1.

Example two: if the second ABS pattern set Q22 generated by cell C2 and potentially available for cell C1 is yyyyyyy, yyyyyyyy, no intersection with Q1 and N ≠ 0 currently received by C2. In addition, assume that there are four other cells, C3, C4, C5, and C6; the service of the user when the cell C2 is in interference coordination with the cell C3 is U3, the second integrated priority is n3, the service of the user when the cell C2 is in interference coordination with the cell C4 is U4, the second integrated priority is n4, the service of the user when the cell C2 is in interference coordination with the cell C5 is U5, the second integrated priority is n5, the service of the user when the cell C2 is in interference coordination with the cell C6 is U6, and the second integrated priority is n 6; the overall priority ranking is n4 > n1 > n3 > n5 > n 6. Now, n1 > n3 > n5 > n6 in the acquisition order sequentially confirms the target cells with the intersections of the ABS patterns with the interfered cells according to the order from low to high. The method specifically comprises the following steps:

assume that when the third ABS pattern Q26 between cell C2 and cell C6 is yyyyyyaa and yyyyyyya, there is no intersection with Q1. Judging again that the third ABS pattern Q212 between the cell C2 and the cell C5 is AYYYYYY, yyyyyy, and intersects with Q1, the records are sorted as 2, since the intersection of Q212 and Q1 is AYYYYYY, the cell C2 considers that the ABS pattern set Q252 performing re-interference coordination with the cell C5 is yayyyyy, YYAAYYY, and the cell C2 sends a re-interference coordination message to the cell C5, which includes the Q252 pattern set, the second integrated priority N5 of U5, and the mutual interference parameter N-1, which includes the following three cases:

the first situation is as follows: assuming that the cell C5 determines that the ABS pattern set C52 potentially available for coordination with the cell C2 is YYAAYYY and YYAAYYY, and there is an intersection YYAAYYY with Q252, the cell C5 sends YYAAYYY to the cell C2 as the fourth ABS pattern after re-interference coordination of the cell C5 and the cell C2, the cell C2 and the cell C5 perform resource scheduling based on the ABS subframe pattern of YYAAYYY, and since the mutual interference parameter received by the cell C5 is equal to N-1, the cell C2 sends the intersection AYYYYYY of Q212 and Q1 to the cell C1, and resource scheduling is performed between the cell C2 and the cell C1 based on this ABS subframe pattern.

Case two: assuming that the cell C5 determines that the ABS pattern set C52 potentially available for coordination with the cell C2 is YYYYYAA and YYYAAYY without intersecting with Q252, and if N-1 ≠ 0, then the cell C5 sends interference coordination failure indication information to the cell C2, since the mutual interference parameter received by the cell C5 is N-1 ≠ N, so that rank 3 corresponds to cell C3, user traffic U3, and second integrated priority N3, if the ABS pattern negotiated with the cell C2 is not used, the configurable ABS pattern set Q23 is yayyyyyyyyyyyy, yyyyyyy, intersects with Q1, the cell C2 considers that the ABS pattern set yas coordinated with the cell C3 is C232 yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy and sends the interference pattern set C2 to the cell C2 as the integrated interference pattern set y, which re-yyyyyyyyyyyyyyyyyyyya 3524, and re-3, the cell C2 and the cell C3 perform resource scheduling based on the fourth ABS pattern, and since the mutual interference parameter of the cell C3 is N-1, the cell C2 sends the intersection YAYYYYY of the Q23 and the Q1 to the cell C1, and resource scheduling is performed between the cell C2 and the cell C1 based on the first ABS pattern.

Case three: assuming that cell C5 determines ABS subframe pattern set C52 potentially available for coordination with cell C2 as YYYYYAA and yyyyaayy without intersection with Q252, and if N-1 ≠ 0, the corresponding interfering cells are cell C7 and cell C8 if cell C5 is the interfered cell; the user service served by the cell C5 in interference coordination with the cell C7 is U7, the third integrated priority is n7, the user service served by the cell C5 in interference coordination with the cell C8 is U8, and the third integrated priority is n8, where it is assumed that the integrated priorities are ranked n7 > n5 > n 8. When no negotiated ABS pattern is used between cell C5 and cell C8, the set of ABS patterns Q523 configurable by cell C5 is yaayyyyy and AYYYYYA, with the intersection yaayyy with Q252. Cell C5 considers that the ABS pattern set Q582 coordinated with cell C8 is YYYAAYY and YYYYYAA, and cell C5 sends a re-interference coordination message to cell C8, including the Q582 pattern set, the third integrated priority N8 of U8 and the mutual interference parameter N-2, assuming that cell C8 judges that the subframe pattern YYYAAYY in Q582 may be used, cell C8 sends the negotiated ABS pattern yyyyaayy to cell C5, resource scheduling is performed between cell C5 and cell C8 based on the subframe pattern, and since the mutual interference parameter of cell C5 is not equal to N, cell C5 sends the intersection yayyyyyyyy of ya523 and Q252 to cell C2 as the fourth ABS pattern, resource scheduling is performed between cell C2 and cell C5 based on this, and cell C2 sends the intersection yyyyyyyyyyyyyyyyyyyyyyyyyyy of Q1 as the interference result of cell C1 and cell C1.

Example three: assuming that the ABS subframe pattern set Q22 generated by the cell C2 and potentially available for the interfered cell is yyyyyy, yyyyyyy, and does not intersect with Q1, and N currently received by the cell C2 is 0, and Q22 does not intersect with Q1, the cell C2 sends this interference coordination failure indication information to the cell C1.

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 is a schematic diagram of a possible structure of the interference coordination apparatus 30 related in the foregoing embodiment, where the interference coordination apparatus is applied to a base station or a chip on the base station, and the interference coordination apparatus 30 includes:

an obtaining unit 301, configured to obtain a first comprehensive priority of a user service of an interfered cell and a first almost blank subframe ABS pattern set; wherein the first set of ABS patterns includes at least one first ABS pattern available to the interfered cell.

A processing unit 302, configured to determine that there is no intersection between the second ABS pattern set and the first ABS pattern set acquired by the acquiring unit 301; wherein the second set of ABS patterns comprises at least one second ABS pattern that the interfering cell may provide for the interfered cell.

An obtaining unit 301, configured to determine, at the processing unit 302, that there is no intersection between the first ABS pattern set and the second ABS pattern set obtained by the obtaining unit 301, and obtain a second comprehensive priority and a third ABS pattern set of the user service of at least one other cell.

A processing unit 302, configured to determine a first integrated priority and a ranking of at least one second integrated priority acquired by the acquiring unit 301; determining a target cell among the at least one other cell according to the ranking; the other cells are cells which perform interference coordination when the other cells and the interference cell are taken as interfered cells; the other cells are respectively in one-to-one correspondence with the second integrated priority and the third ABS pattern set.

The processing unit 302 is further configured to determine a target first ABS pattern for the interfered cell in an intersection of the third ABS pattern set and the first ABS pattern set of the target cell when the third ABS pattern set of the target cell has an intersection with the first ABS pattern set.

A sending unit 303, configured to send the target first ABS pattern determined by the processing unit 302 to the interfered cell; when the third ABS pattern set of the target cell is interference coordinated with the interfering cell, the target cell provides the intersection of the usable ABS pattern set for the interfering cell and the idle ABS pattern set of the interfering cell.

In an exemplary scenario, the processing unit 302 is specifically configured to obtain a low-to-high order of a second integrated priority lower than the first integrated priority in the sorting.

The processing unit 302 is further configured to successively determine a target cell of a third ABS pattern set intersecting the first ABS pattern set according to a descending order of the second integrated priority in the sequence.

In an exemplary scheme, the sending unit 303 is further configured to send a re-interference coordination request to the target cell.

The processing unit 302 is further configured to release the third ABS pattern set if the obtaining unit receives a negotiation success message in response to the re-interference coordination request.

In an exemplary scheme, the sending unit 303 is further configured to send an interference coordination request to the target cell.

The processing unit 302 is further configured to, if the obtaining unit 301 receives a response to the re-interference coordination request, not negotiate to generate a fourth ABS pattern; and not releasing the third ABS pattern set, and deleting the target cell in the sequence and the corresponding third ABS pattern set and the second comprehensive priority.

The processing unit 302 is further configured to re-determine the target cell in the at least one other cell according to the ranking.

In one exemplary approach, the first composite priority is determined by at least one or more of: the level of the user service, the priority of the user service and the level of the network slice where the user service is located.

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 case of an integrated unit, fig. 4 shows a schematic diagram of a possible configuration of the interference coordination device 30 according to the above-described embodiment. The interference coordination apparatus 30 includes: a processing module 401, where the processing module 401 is configured to control and manage an operation of the interference coordination apparatus 30; for example, the processing module 401 is configured to support the interference coordination apparatus 40 to perform the

process

202 and 204 in fig. 2. In addition, the interference coordination apparatus 30 may further include: a communication module 402 and a storage module 403. Wherein the communication module 402 is configured to support communication between the interference coordination apparatus 30 and other entities; the storage module 403 is used for storing program codes and data of the interference coordination device 30.

The processing module 401 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 402 may be a transceiver, a transceiving circuit or a communication interface, etc. The storage module 403 may be a memory.

When the processing module 401 is a processor as shown in fig. 5, the communication module 402 is a transceiver as shown in fig. 5, and the storage module 403 is a memory as shown in fig. 5, 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. 5, the interference coordination apparatus 30 includes: a processor 501. The processor 501 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. 5, in another example, the interference coordination apparatus 30 may further include a memory 503, where the memory 503 is used to store an application program code for executing the scheme of the present application. Wherein the memory 503 may be provided separately or integrated in the processor 501. In addition, the interference coordination apparatus 30 may further include a transceiver 502, where the transceiver 502 is configured to execute the method implemented by the communication module 402 to implement communication with other devices. The processor 501, the transceiver 502, and the memory 503 may be coupled to each other, for example, by a bus 504. The bus 504 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 501 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 503 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 503 is used for storing application program codes for executing the scheme of the application, and the processor 501 controls the execution. The transceiver 502 is configured to receive content input from an external device, and the processor 501 is configured to execute application program codes stored in the memory 503, so as to implement 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

1. An interference coordination method, comprising:

acquiring a first comprehensive priority and a first Almost Blank Subframe (ABS) pattern set of user services of an interfered cell; wherein the first set of ABS patterns includes at least one first ABS pattern available to the interfered cell;

determining that there is no intersection of the first set of ABS patterns and the second set of ABS patterns; acquiring a second comprehensive priority and a third ABS pattern set of user services of at least one other cell, and determining the first comprehensive priority and the sequence of at least one second comprehensive priority; determining a target cell among the at least one other cell according to the ranking; wherein the second set of ABS patterns comprises at least one second ABS pattern that an interfering cell may provide for the interfered cell; the other cells are cells which perform interference coordination when the other cells and the interference cell are taken as interfered cells; the other cells respectively correspond to the second integrated priority and the third ABS pattern sets one to one;

when the third ABS pattern set of the target cell has an intersection with the first ABS pattern set, determining a target first ABS pattern for the interfered cell in the intersection of the third ABS pattern set of the target cell and the first ABS pattern set, and sending the target first ABS pattern to the interfered cell; when the third ABS pattern set of the target cell is interference coordination between the target cell and the interfering cell, the target cell provides an intersection of a usable ABS pattern set provided by the interfering cell and an idle ABS pattern set of the interfering cell.

2. The interference coordination method according to claim 1, wherein the determining a target cell among the at least one other cell according to the ranking specifically includes:

acquiring a low-to-high order of the second integrated priority lower than the first integrated priority in the sorting;

and successively determining a target cell of a third ABS pattern set with intersection with the first ABS pattern set according to the sequence from low to high of the second comprehensive priority in the sequence.

3. The interference coordination method according to claim 1 or 2, wherein before sending the target first ABS pattern to the interfered cell, further comprising:

sending a re-interference coordination request to the target cell;

releasing the third ABS pattern set if a negotiation success message responding to the re-interference coordination request is received.

4. The interference coordination method according to claim 1 or 2, wherein before sending the target first ABS pattern to the interfered cell, further comprising:

sending an interference coordination request to the target cell;

if a negotiation failure message responding to the re-interference coordination request is received, not releasing the third ABS pattern set, and deleting the target cell in the sequence and the corresponding third ABS pattern set and second comprehensive priority;

re-determining the target cell in the at least one other cell according to the ranking.

5. The interference coordination method according to claim 1, wherein said first integrated priority is determined by at least one or more of: the level of the user service, the priority of the user service and the level of the network slice in which the user service is located.

6. An interference coordination apparatus, comprising:

the device comprises an acquisition unit, a processing unit and a processing unit, wherein the acquisition unit is used for acquiring a first comprehensive priority of user services of an interfered cell and a first Almost Blank Subframe (ABS) pattern set; wherein the first set of ABS patterns includes at least one first ABS pattern available to the interfered cell;

the processing unit is used for determining that no intersection exists between the second ABS pattern set and the first ABS pattern set acquired by the acquisition unit; wherein the second set of ABS patterns comprises at least one second ABS pattern that an interfering cell may provide for the interfered cell;

an obtaining unit, configured to determine, at the processing unit, that there is no intersection between the first ABS pattern set and the second ABS pattern set obtained by the obtaining unit, and obtain a second comprehensive priority and a third ABS pattern set of the user service of at least one other cell;

the processing unit is used for determining the first comprehensive priority and the sequencing of at least one second comprehensive priority acquired by the acquisition unit; determining a target cell among the at least one other cell according to the ranking; the other cells are cells which perform interference coordination when the other cells and the interference cell are taken as interfered cells; the other cells respectively correspond to the second integrated priority and the third ABS pattern sets one to one;

the processing unit is further configured to determine a target first ABS pattern for the interfered cell in an intersection of the third ABS pattern set and the first ABS pattern set of the target cell when the third ABS pattern set and the first ABS pattern set of the target cell have an intersection;

a sending unit, configured to send the target first ABS pattern determined by the processing unit to an interfered cell; when the third ABS pattern set of the target cell is interference coordination between the target cell and the interfering cell, the target cell provides an intersection of a usable ABS pattern set provided by the interfering cell and an idle ABS pattern set of the interfering cell.

7. The interference coordination device of claim 6, comprising:

the processing unit is specifically configured to obtain a low-to-high order of the second integrated priority lower than the first integrated priority in the sorting;

the processing unit is further configured to successively determine, according to an order from low to high of the second combined priority in the order, a target cell of a third ABS pattern set that intersects with the first ABS pattern set.

8. The interference coordination device according to claim 6 or 7, comprising:

the sending unit is further configured to send a re-interference coordination request to the target cell;

the processing unit is further configured to release the third ABS pattern set if the obtaining unit receives a negotiation success message in response to the re-interference coordination request.

9. The interference coordination device according to claim 6 or 7, further comprising:

the sending unit is further configured to send an interference coordination request to the target cell;

the processing unit is further configured to, if the obtaining unit receives a negotiation failure message in response to the re-interference coordination request, not release the third ABS pattern set, and delete the target cell in the ranking and the corresponding third ABS pattern set and second comprehensive priority;

the processing unit is further configured to re-determine the target cell in the at least one other cell according to the ranking.

10. The interference coordination device of claim 6, wherein said first integrated priority is determined by at least one or more of: the level of the user service, the priority of the user service and the level of the network slice in which the user service is located.

11. 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 1-5.

12. A base station for an interfering base station, comprising the interference coordination device according to any of claims 6-11.

13. A computer storage medium, characterized in that a computer program code is stored in the computer storage medium, which, when run on an interference coordination apparatus, causes the interference coordination apparatus to perform the interference coordination method according to any of claims 1-5.

14. A computer program product, characterized in that the computer program product stores computer software instructions which, when run on an interference coordination apparatus, cause the interference coordination apparatus to perform the interference coordination method according to any of claims 1-5.