CN102378206B - Interference coordination method and system thereof, and apparatus - Google Patents
Interference coordination method and system thereof, and apparatus Download PDFInfo
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- CN102378206B CN102378206B CN201010252826.9A CN201010252826A CN102378206B CN 102378206 B CN102378206 B CN 102378206B CN 201010252826 A CN201010252826 A CN 201010252826A CN 102378206 B CN102378206 B CN 102378206B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/04—Large scale networks; Deep hierarchical networks
- H04W84/042—Public Land Mobile systems, e.g. cellular systems
- H04W84/045—Public Land Mobile systems, e.g. cellular systems using private Base Stations, e.g. femto Base Stations, home Node B
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Abstract
The embodiment of the invention discloses an interference coordination method and a system thereof, and an apparatus as well as relates to the communication field. According to the invention, interferences between user communication under a Macro evolved NodeB (Macro eNB) and user communication under a Home evolved NodeB (HeNB) can be reduced; and service qualities of user communication services can be improved. A technical scheme provided in the invention is as follows: a Macro eNB receives a measurement report sent by a terminal, wherein the measurement report includes interference indication information that is broadcasted by an HeNB and is measured by the terminal; if the Macro eNB determines that an interference between a channel of the terminal and a channel of the HeNB exceeds a threshold value according to the interference indication information, the Macro eNB replaces a carrier frequency for the terminal or the Macro eNB distributes frequency bands for the terminal, wherein the frequency bands are not mutually overlapped between the Macro eNB and the HeNB. According to the invention, the method, the system and the apparatus are suitable for a mobile wireless network.
Description
Technical field
The present invention relates to the communications field, particularly relate to a kind of disturbance coordination method, Apparatus and system.
Background technology
At LTE (Long Term Evolution, Long Term Evolution) in, E-UTRAN (Evolved UMTS Terrestrial Radio Access Network, wireless access network) is made up of multiple Macro eNB (Macro evolved NodeB, macro base station).In order to provide higher message transmission rate and less time delay, HeNB (the Home evolved NodeB that in-door covering is provided is also introduced in LTE, Home eNodeB), HeNB can be deployed in the private sites such as family, company, market in a large number.
Realizing in process of the present invention, inventor finds that in prior art, at least there are the following problems: because prior art does not provide the disturbance coordination method between HeNB and Macro eNB, therefore, if the mixed deployment of HeNB and Macro eNB, and when the frequency band that HeNB and Macro eNB uses exists overlapping, telex network under Macro eNB and the telex network under HeNB may be interfered mutually, reduce the service quality of user communication business.
Summary of the invention
Embodiments of the invention provide a kind of disturbance coordination method, Apparatus and system, can alleviate the interference that the telex network under Macro eNB and the telex network under HeNB are subject to mutually, improve the service quality of user communication business.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of disturbance coordination method, comprising:
The measurement report that macro base station receiving terminal sends, described measurement report comprises the interference indication information of the Home eNodeB broadcast measured by described terminal;
If according to described interference indication information, described macro base station determines that the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value, described macro base station is that described terminal changes carrier frequency, or, the frequency band that described macro base station is macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies.
A kind of macro base station, comprising:
Measurement report receiving element, for the measurement report that receiving terminal sends, described measurement report comprises the interference indication information of the Home eNodeB broadcast measured by described terminal;
Interference processing unit, after described interference indication information for receiving according to described measurement report receiving element determines that the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value, for described terminal changes carrier frequency, or, be the frequency band of macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies.
A kind of interference coordination system, comprises Home eNodeB and terminal and macro base station;
Described Home eNodeB, for detecting the interference whether being subject to described macro base station, and indication information is disturbed in broadcast when detecting the interference being subject to described macro base station;
Described terminal, obtains measurement report for the interference indication information sent according to described Home eNodeB, and sends described measurement report to described macro base station; The carrier frequency using described macro base station to change communicates, or, the frequency bands for communication of the described macro base station using described macro base station to distribute and described Home eNodeB non-overlapping copies;
Described macro base station, for receiving the measurement report that described terminal sends; If determine that the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value according to the interference indication information in described measurement report, for described terminal changes carrier frequency, or, be the frequency band of macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies.
The disturbance coordination method that the embodiment of the present invention provides, Apparatus and system, the measurement report comprising the interference indication information of described Home eNodeB broadcast sent by macro base station receiving terminal; When macro base station exceedes threshold value according to the interference that the interference indication information in described measurement report is determined between the channel of described terminal and the channel of described Home eNodeB, for described terminal changes carrier frequency or the frequency band for macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies.Therefore, under the scene that macrocell under macro base station and the overlap of the Microcell under Home eNodeB cover, when the terminal under macro base station near or when entering under Home eNodeB Microcell, the interference that the telex network under macro base station and the telex network under Home eNodeB are subject to mutually can be alleviated, thus improve the service quality of user communication business.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The schematic flow sheet of a kind of disturbance coordination method that Fig. 1 provides for the embodiment of the present invention;
The Macro eNB that Fig. 2 provides for the embodiment of the present invention and HeNB mixed deployment scene graph;
The schematic flow sheet of a kind of disturbance coordination method that Fig. 3 provides for the embodiment of the present invention;
The coordinated manipulation schematic flow sheet that Fig. 4 provides for the embodiment of the present invention;
The schematic flow sheet of the method for the interference details of a kind of Macro eNB acquisition HeNB that Fig. 5 provides for the embodiment of the present invention;
The schematic flow sheet of the method for the interference details of the another kind of Macro eNB acquisition HeNB that Fig. 6 provides for the embodiment of the present invention;
The schematic flow sheet of the method for the interference details of another Macro eNB acquisition HeNB that Fig. 7 provides for the embodiment of the present invention;
The formation schematic diagram of a kind of macro base station that Fig. 8 provides for the embodiment of the present invention;
The formation schematic diagram of a kind of interference coordination system that Fig. 9 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In order to the interference that the telex network under Macro eNB and the telex network under HeNB are subject to mutually can be alleviated, improve the service quality of user communication business, embodiments provide a kind of disturbance coordination method, as shown in Figure 1, comprising:
101, the measurement report of macro base station receiving terminal transmission, described measurement report comprises the interference indication information of the Home eNodeB broadcast measured by described terminal;
For example, Home eNodeB is when detecting the interference being subject to macro base station, and indication information is disturbed in broadcast.Terminal obtains measurement report according to described interference indication information, and described measurement report comprises the signal quality information of described Home eNodeB and the signal quality information of described macro base station and disturbs indication information.
If according to described interference indication information, 102 described macro base stations determine that the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value, described macro base station is that described terminal changes carrier frequency, or, the frequency band that described macro base station is macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies.
For example, described macro base station can be subject to the interference value one of the up channel of described terminal at the up channel obtaining described Home eNodeB according to described interference indication information, and the down channel of described terminal is subject to the interference value two of the down channel of described Home eNodeB.If the interference value one of described acquisition is greater than the up threshold value of the interference between the up channel of described terminal and the up channel of described Home eNodeB, then macro base station determines that the interference between the up channel of described terminal and the up channel of described Home eNodeB exceedes up threshold value.If the interference value two of described acquisition is greater than the descending threshold value of the interference between the down channel of described terminal and the down channel of described Home eNodeB, then macro base station determines that the interference between the down channel of described terminal and the down channel of described Home eNodeB exceedes descending threshold value.Determine that the interference between the up channel of described terminal and the up channel of described Home eNodeB exceedes up threshold value at macro base station, or, when macro base station determines that the interference between the down channel of described terminal and the down channel of described Home eNodeB exceedes descending threshold value, macro base station determines that the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value.
Described macro base station can after determining that the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value, when there is non-overlapped frequency band in described macro base station and described Home eNodeB, for the frequency band of macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies, when described macro base station and described Home eNodeB do not exist non-overlapped frequency band, for described terminal changes carrier frequency.
Or, described macro base station also can determine that the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value, and after the signal strength signal intensity of described Home eNodeB is not less than the signal strength signal intensity of described macro base station, determine the mode of operation of described Home eNodeB.Macro base station determine the mode of operation of described Home eNodeB be mixed mode or open mode time, by described terminal switch to described Home eNodeB.Or macro base station is determining that the mode of operation of described Home eNodeB is closed user group pattern, and when described terminal is the closed user group user of described Home eNodeB, by described terminal switch to described Home eNodeB.
Or, described macro base station can also determine that the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value, and after the signal strength signal intensity of described Home eNodeB is not less than the signal strength signal intensity of described macro base station, initiate the switching preparation process of described terminal to described Home eNodeB.Switching preparation process from described terminal to described Home eNodeB success time, by described terminal switch to described Home eNodeB.
In addition, described macro base station according to the interference indication information in described measurement report, can also directly obtain interference details from described Home eNodeB.Or described macro base station, according to the interference indication information in described measurement report, obtains interference details by X2 gateway from described Home eNodeB.Or log server receives the interference details that described Home eNodeB sends, and preserves described interference details, and described macro base station obtains described interference details according to the interference indication information in described measurement report from described log server.Wherein, described interference details are the details that described Home eNodeB is interfered.
The disturbance coordination method that the present embodiment provides, the measurement report comprising the interference indication information of described Home eNodeB broadcast sent by macro base station receiving terminal; When macro base station exceedes threshold value according to the interference that described measurement report is determined between the channel of described terminal and the channel of described Home eNodeB, for described terminal changes carrier frequency or the frequency band for macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies.Therefore, under the scene that macrocell under macro base station and the overlap of the Microcell under Home eNodeB cover, when the terminal under macro base station near or when entering under Home eNodeB Microcell, the interference that the telex network under macro base station and the telex network under Home eNodeB are subject to mutually can be alleviated, thus improve the service quality of user communication business.
Below for the scene of the Macro eNB shown in Fig. 2 and HeNB mixed deployment, a upper embodiment is described in further detail.
As shown in Figure 3, the present embodiment disturbance coordination method, comprising:
201, when the UE of Macro eNB discovery current service is positioned at the fringe region of the femto cell (Microcell) under a certain HeNB, Macro eNB indicates this UE to carry out the measurement relevant to the femto cell under this HeNB and reports.
For example, Macro eNB finds the femto cell of UE under a certain HeNB of current service, and when namely UE is positioned at the fringe region of the femto cell under this HeNB, Macro eNB sends to this UE and detects indication information.Macro eNB reads the broadcast message of the femto cell under this HeNB according to this detection indication information.Wherein, Macro eNB finds that UE see prior art, can not repeat them here near the concrete grammar of HeNB.
202, when this HeNB detects that communication is subject to the interference exceeding certain threshold value, this HeNB broadcasts interference indication information.
For example, this HeNB measures the signal quality information of the femto cell under it (such as in real time, RSRP (Reference Signal Receiving Power, Reference Signal Received Power) or RSRQ (Reference Signal Receiving Quality, Reference Signal Received Quality)), find that current upstream or downstream channel is subject to strong jamming at this HeNB according to this signal quality information, and the annoyance level be subject to has badly influenced CSG (Close Subscriber Group under this HeNB, closed user group) regular traffic of user time, this He NB adds an interference indication information in system broadcast message, be used to indicate the interference of the current Macro eNB be subject in the same area of coverage of this HeNB.This HeNB outwards broadcasts this system broadcast message.
203, after this UE receives this interference indication information, measurement report is sent according to this interference indication information to Macro eNB.
For example, after this UE receives the system broadcast message of this HeNB broadcast, when determining to comprise interference indication information in this system broadcast message, channel disturbance instruction is obtained according to this interference indication information, such as, up channel interference instruction and down channel interference instruction is obtained according to this interference indication information.Further, from this system broadcast message, obtain the CSG ID under this HeNB and access module information, and measure the signal quality (such as, RSRP or RSRQ) of Femto community.Meanwhile, this UE measures the signal quality information (such as, RSRP or RSRQ) of Marco eNB.Then, this UE by the signal quality information of the femto cell under this HeNB (such as, RSRP or RSRQ), cell ID, CSG ID and access module, channel disturbance indicates, the cell ID at the current place of this UE (such as, ECG (E-UTRAN Cell Global Identifier, cellular global identity) or PCI (Physical Cell Identifier, cell physical layer identifiers)) and the signal quality information of Macro eNB send to Macro eNB as measurement report.
204, the measurement report that Macro eNB sends according to this UE judges following two kinds of situations: A) whether the down channel of this UE is subject to the strong jamming of the down channel of this HeNB, namely whether the down channel of this UE is subject to the interference of the down channel of this HeNB, and whether its interference exceedes descending threshold value when being interfered; B) whether the up channel of this UE creates strong jamming to the up channel of this HeNB, and namely whether the up channel of this UE creates interference to the up channel of this HeNB, and whether its interference exceedes up threshold value when producing interference.If Macro eNB judges that the down channel of this UE is subject to the strong jamming of the down channel of this HeNB, or the up channel of the up channel of this UE to this HeNB creates strong jamming, then perform following coordinated manipulation flow process.
Channel disturbance instruction in the measurement report that Macro eNB sends according to UE, the up channel obtaining this HeNB is subject to the interference value one of the up channel of this UE, and the down channel of this UE is subject to the interference value two of the down channel of this HeNB.Such as, after this HeNB measures the interference value one of above-mentioned up channel and the interference value two of down channel, broadcast the interference value one and two measured.After this UE receives this interference value one and two, this interference value one and two can be carried inform Macro eNB in measurement report.Or the channel disturbance instruction in the measurement report that Macro eNB sends according to UE, obtain the interference value one of above-mentioned up channel and the interference value two of down channel from this HeNB, concrete acquisition methods referring to hereinafter, can not repeat them here.
Macro eNB, when determining that the interference value one obtained is greater than the up threshold value of the interference between the up channel of this UE and the up channel of this HeNB, judges that the up channel of this HeNB is subject to the strong jamming of the up channel of this UE.Macro eNB, determining that the interference value two obtained is greater than the descending threshold value of the interference between the down channel of this UE and the down channel of this HeNB, judges that the down channel of this UE is subject to the strong jamming of the down channel of this HeNB.
As shown in Figure 4, this coordinated manipulation flow process specifically comprises:
2041, Macro eNB is according to the channel quality information of Macro eNB in the measurement report of this UE and the channel quality information of HeNB, judges that the signal strength signal intensity of this HeNB is whether lower than the signal strength signal intensity of Macro eNB.If it is determined that the signal strength signal intensity of this HeNB is not less than the signal strength signal intensity of Macro eNB, then enter step 2042, otherwise, skip to step 2046.
In this step, for UE, if the signal of HeNB is more a lot of than the signal difference of Macro eNB, when so UE being switched to target HeNB, again can cause the interference to Macro eNB.Therefore, whether Macro eNB needs to judge that UE is switched to this HeNB suitable, similar in the signal strength signal intensity of the signal and Macro eNB that judge HeNB, or, the scene that HeNB signal is better than the signal of Macro eNB, Macro eNB can be switched to target HeNB UE.
2042, Macro eNB judges that whether this HeNB is at Hybrid or Open MODE of operation.If it is determined that this HeNB at Hybrid or Open MODE of operation, then enters step 2043, otherwise this HeNB, at CSG MODE of operation, skips to step 2044.
HeNB can work under Hybrid, Open or CSG Three models.Wherein, HeNB allows any user to access when Open MODE of operation, can provide service for CSG user and non-CSG user.HeNB only allows the CSG user of this HeNB to access when CSG MODE of operation, the CSG user being namely only this HeNB provides service.HeNB allows non-CSG user to access when Hybrid MODE of operation in resource space idle, can provide service for CSG user and non-CSG user.
2043, Macro eNB initiates the switching flow of UE to this HeNB.
Wherein, Macro eNB initiation UE specifically see prior art, can not repeat them here to the switching flow of HeNB.
2044, Macro eNB judges whether this UE belongs to the CSG user of this HeNB, if it is determined that this UE is the CSG user belonging to this HeNB, then skips to step 2043, otherwise enters step 2045.
For example, Macro eNB, according to the CSG ID of this HeNB and the subscription data of this UE in interference indication information, judges whether this UE belongs to the CSG user of this HeNB.
2045, Macro eNB attempts initiating the switching preparation process of this UE to this HeNB.MacroeNB judges that whether this switching preparation process is successful.If Macro eNB judges switching flow success, then skip to step 2043, otherwise enter step 2046.
2046, Macro eNB judges to there is non-overlapped frequency band between Macro cell under Macro eNB and the femto cell under this HeNB.If it is determined that there is non-overlapped frequency band between this Macro cell and this femto cell, then enter step 2047, otherwise skip to step 2048.
2047, Macro eNB is that this UE distributes with the nonoverlapping frequency band of femto cell under this HeNB to carry physical channel.
2048, Macro eNB initiates an inner switching flow, this UE is switched to the community 2 of another carrier frequency of Macro eNB frequently from the community 1 of publishing originally of Macro eNB.
In above-mentioned coordination process, in order to save the resource of eating dishes without rice or wine, the system broadcast message of HeNB is only carried and is taken the few interference indication information of resource, and UE also sends to Macro eNB and takies the few channel disturbance instruction of resource.In addition, when Macro eNB to find that according to the measurement report that UE sends the up channel of the HeNB pointed out in this measurement report or down channel are just being subject to strong jamming, the embodiment of the present invention additionally provides the method that following three kinds of Macro eNB obtain the interference details of this HeNB, the strength information making Macro eNB can understand the current frequency band that is interfered of HeNB and each frequency band to be more accurately disturbed, more reasonably operates so that Macro eNB can make according to these information.
First method
As shown in Figure 5, the method for the interference details of Macro eNB acquisition HeNB comprises:
301, when Macro eNB to find that according to the measurement report that UE sends the up channel of the HeNB pointed out in this measurement report or down channel are just being subject to strong jamming, according to the relevant information of this HeNB in measurement report, obtained the transport layer address of this HeNB by inquiry Neighboring Cell List or Automatic Neighboring Relation.
Wherein, the relevant information of HeNB can be the relevant location information of HeNB, or the facility information of HeNB, or the cell identity information of Femto cell under HeNB.
In addition, Macro eNB also when finding that UE has moved to the community inner region of HeNB, can obtain the transport layer address of this HeNB, performs subsequent step.
302, Macro eNB is according to the transport layer address of this HeNB obtained, and to the Establishing process that this HeNB initiates X2 interface, between Macro eNB and this HeNB, directly sets up X2 interface.
303, after X2 interface is successfully established, Macro eNB sends interfere information inquiry request message by this X2 interface to this HeNB;
304, this HeNB is after this interfere information inquiry request message of reception, interfere information query response message is sent to Macro eNB by this X2 interface, the interference details of this HeNB are comprised, i.e. the current details be interfered of this HeNB in this interfere information query response message.
305, Macro eNB is when determining the interference details not needing to continue to obtain this HeNB, to HeNB transmission interface releasing request, to discharge the X2 interface between Macro eNB and this HeNB.
Second method
As shown in Figure 6, the method for the interference details of Macro eNB acquisition HeNB comprises:
401, after HeNB starts, and an X2 interface between the X2 GW of its service, is set up.
402, when Macro eNB to find that according to the measurement report that UE sends the up channel of the HeNB pointed out in this measurement report or down channel are just being subject to strong jamming, according to the relevant information of this HeNB in measurement report, obtained the transport layer address of the X2 GW that this HeNB serves by inquiry Neighboring Cell List or Automatic Neighboring Relation.
Wherein, the relevant information of HeNB can be the relevant location information of HeNB, or the facility information of HeNB, or the cell identity information of Femto cell under HeNB.
In addition, Macro eNB also when finding that UE has moved to the community inner region of HeNB, can obtain the transport layer address of the X2 GW that this HeNB serves, and performs subsequent step.
403, Macro eNB is according to the transport layer address of the X2 GW of this HeNB service obtained, and to the Establishing process that this X2 GW initiates X2 interface, between Macro eNB and this X2 GW, directly sets up X2 interface.
404, after X2 interface is successfully established, Macro eNB sends interfere information inquiry request message by X2 interface to this X2 GW.
For example, Macro eNB sends interfere information inquiry request message to this X2 GW, this interfere information inquiry request message comprises the relevant information of this HeNB, this relevant information is specifically as follows the facility information of this HeNB or address information or positional information (cell ID of the Femto cell such as, under HeNB).
405, after X2 GW receives this interfere information inquiry request message, interfere information inquiry request message is sent by X2 interface to this HeNB.
For example, X2 GW after reception interfere information inquiry request message, according to the relevant information of this HeNB carried in this interfere information inquiry request message, this HeNB of addressing.
X2 GW can add a temporary mark at this interfere information inquiry request message, this temporary mark is used for and response message matches, the address of this temporary mark and Macro eNB and interface message correspondence are preserved, by X2 interface, the interfere information inquiry request message that with the addition of temporary mark is sent to this HeNB.
Or X2 GW also can add facility information or the positional information of Macro eNB in interference inquiry request message, by X2 interface, the interfere information inquiry request message of the facility information or positional information that with the addition of Macro eNB is sent to this HeNB.
406, after HeNB receives this interfere information inquiry request message, interfere information query response message is sent to X2 GW by X2 interface, the interference details of this HeNB are comprised, i.e. the current details be interfered of this HeNB in this interfere information query response message.
For example, HeNB after this interfere information inquiry request message of reception, can obtain the temporary mark in this interfere information inquiry request message.And, obtain the interference details that this HeNB is current, the interference details current according to this HeNB obtain interfere information query response message, in this interfere information query response message, add the temporary mark of acquisition, sent the interfere information query response message that with the addition of temporary mark by X2 interface to X2 GW.
Or HeNB also after this interfere information inquiry request message of reception, can obtain facility information or the positional information of the Macro eNB in this interfere information inquiry request message.And, obtain the interference details that this HeNB is current, the interference details current according to this HeNB obtain interfere information query response message, in this interfere information query response message, add facility information or the positional information of the Macro eNB of acquisition, with the addition of the facility information of Macro eNB or the interfere information query response message of positional information by X2 interface to X2 GW transmission.
407, after X2 GW receives this interfere information query response message, interfere information query response message is sent by X2 interface to Macro eNB.
For example, X2 GW after this interfere information query response message of reception, can obtain the temporary mark in this interfere information query response message.Obtain the address of Macro eNB or interface message of preserving according to this temporary mark, and send interfere information query response message according to the address of Macro eNB or interface message to Macro eNB.
Or X2 GW also after this interfere information query response message of reception, can obtain facility information or the positional information of the Macro eNB in this interfere information query response message.Be addressed to Macro eNB according to the facility information of Macro eNB or positional information, send interfere information query response message to Macro eNB.
The third method
As shown in Figure 7, the method for the interference details of Macro eNB acquisition HeNB comprises:
501, HeNB periodically or event-triggered ground will disturb details, namely the details self be interfered send to log server (Blog Server), and the interference details of this HeNB received are kept in log information by log server.
Wherein, this log server can realize on HeNB GW entity.
502, when Macro eNB to find that according to the measurement report that UE sends the up channel of the HeNB pointed out in this measurement report or down channel are just being subject to strong jamming, according to the relevant information of this HeNB in measurement report, be retrieved as the transport layer address of the log server that this HeNB serves by inquiry Neighboring Cell List or Automatic Neighboring Relation.
Wherein, the relevant information of HeNB can be the relevant location information of HeNB, or the facility information of HeNB, or the cell identity information of Femto cell under HeNB.
In addition, Macro eNB also when finding that UE has moved to the community inner region of HeNB, can be retrieved as the transport layer address of the log server that this HeNB serves, and performs subsequent step.
503, Macro eNB is according to the transport layer address of the log server obtained, and initiates the Establishing process of X2 interface, between Macro eNB and this log server, directly set up X2 interface to this log server.
504, after X2 interface is successfully established, Macro eNB sends interfere information inquiry request message by X2 interface to this log server.
For example, Macro eNB sends interfere information inquiry request message to this log server, this interfere information inquiry request message comprises the relevant information of this HeNB, this relevant information is specifically as follows the facility information of this HeNB or address information or positional information (cell ID of the Femto cell such as, under HeNB).
505, this log server is after this interfere information inquiry request message of reception, send interfere information query response message by this X2 interface to Macro eNB, in this interfere information query response message, comprise the interference details of this HeNB that this log server is preserved.
The disturbance coordination method that the present embodiment provides, receives the measurement report comprising the interference indication information of HeNB broadcast of UE transmission by Macro eNB; Determine according to described measurement report to produce between the channel of UE and the channel of HeNB exceed the interference of specified degree time, change carrier frequency for UE or distribute the frequency band of described Macro eNB and HeNB non-overlapping copies for UE.Therefore, under the scene that macrocell under Macro eNB and the overlap of the Microcell under HeNB cover, when the UE under Macro eNB near or when entering under HeNB Microcell, the interference that the telex network under Macro eNB and the telex network under HeNB are subject to mutually can be alleviated, thus improve the service quality of user communication business.
With said method accordingly, the embodiment of the present invention additionally provides a kind of macro base station, as shown in Figure 8, comprising:
Measurement report receiving element 601, for the measurement report that receiving terminal sends, described measurement report comprises the interference indication information of the Home eNodeB broadcast measured by described terminal;
Interference processing unit 602, after described interference indication information for receiving according to described measurement report receiving element 601 determines that the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value, for described terminal changes carrier frequency, or, be the frequency band of macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies.
Wherein, the described interference indication information included by described measurement report that described measurement report receiving element 601 receives is that described Home eNodeB sends when detecting the interference being subject to described macro base station; Described measurement report also comprises the signal quality information of described Home eNodeB and the signal quality information of described macro base station.
Further, described interference processing unit 602 specifically comprises:
Uply determine subelement, for determining that the interference between the up channel of described terminal and the up channel of described Home eNodeB exceedes up threshold value according to described interference indication information;
Descendingly determine subelement, for determining that the interference between the down channel of described terminal and the down channel of described Home eNodeB exceedes descending threshold value according to described interference indication information.
Further, describedly uply determine that subelement comprises:
Up acquisition module, for according to described interference indication information, the up channel obtaining described Home eNodeB is subject to the interference value one of the up channel of described terminal;
Up determination module, if the interference value one for described up acquisition module acquisition is greater than the up threshold value of the interference between the up channel of described terminal and the up channel of described Home eNodeB, then determine that the interference between the up channel of described terminal and the up channel of described Home eNodeB exceedes up threshold value;
Further, describedly descendingly determine that subelement comprises:
Descending acquisition module, for according to described interference indication information, the down channel obtaining described terminal is subject to the interference value two of the down channel of described Home eNodeB;
Descending determination module, if the interference value two for described descending acquisition module acquisition is greater than the descending threshold value of the interference between the down channel of described terminal and the down channel of described Home eNodeB, then determine that the interference between the down channel of described terminal and the down channel of described Home eNodeB exceedes descending threshold value.
Further, described interference processing unit 602 specifically comprises:
Non-overlapping frequency band judgment sub-unit, for judging whether described macro base station and described Home eNodeB exist non-overlapped frequency band;
Frequency band code reassignment subelement, for when described non-overlapping frequency band judgment sub-unit judges that described macro base station and described Home eNodeB exist non-overlapped frequency band, is the frequency band of macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies;
Carrier frequency changes subelement, for when described non-overlapping frequency band judgment sub-unit judges that described macro base station and described Home eNodeB do not exist non-overlapped frequency band, for described terminal changes carrier frequency.
Further, described interference processing unit 602 also comprises:
Signal strength signal intensity judging unit, for judging that the signal strength signal intensity of described Home eNodeB is whether lower than the signal strength signal intensity of described macro base station;
Mode of operation determining unit, for when described signal strength signal intensity judging unit judges that the signal strength signal intensity of described Home eNodeB is not less than the signal strength signal intensity of described macro base station, determine the mode of operation of described Home eNodeB, described mode of operation comprises mixed mode, open mode or closed mode, and in closed mode, described terminal belongs to the user of described closed user group;
Switching treatmenting unit, for the mode of operation determined according to described mode of operation determining unit, by described terminal switch to described Home eNodeB.
Further, described macro base station also comprises:
Interfere information acquiring unit, for directly obtaining interference details from described Home eNodeB, or, interference details are obtained from described Home eNodeB by X2 gateway, or, obtain the interference details of the described Home eNodeB transmission that described log server receives from log server, described interference details are the details that described Home eNodeB is interfered.
Described macro base station carries out the concrete operation method of interference coordination referring to the method described by Fig. 1, Fig. 2 ~ Fig. 7, does not repeat them here.
The macro base station that the embodiment of the present invention provides, the measurement report comprising the interference indication information of described Home eNodeB broadcast sent by receiving terminal; When determining that according to described measurement report the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value, for described terminal changes carrier frequency or the frequency band for macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies.Therefore, under the scene that macrocell under macro base station and the overlap of the Microcell under Home eNodeB cover, when the terminal under macro base station near or when entering under Home eNodeB Microcell, the interference that the telex network under macro base station and the telex network under Home eNodeB are subject to mutually can be alleviated, thus improve the service quality of user communication business.
With said method, device accordingly, the embodiment of the present invention additionally provides a kind of interference coordination system, as shown in Figure 9, comprises Home eNodeB 701 and terminal 702 and macro base station 703;
Described Home eNodeB 701, for detecting the interference whether being subject to described macro base station 703, and indication information is disturbed in broadcast when detecting the interference being subject to described macro base station 703;
Described terminal 702, obtains measurement report for the interference indication information sent according to described Home eNodeB 701, and sends described measurement report to described macro base station 703; The carrier frequency using described macro base station 703 to change communicates, or, the described macro base station 703 using described macro base station 703 to distribute and the frequency bands for communication of described Home eNodeB 701 non-overlapping copies;
Described macro base station 703, for receiving the measurement report that described terminal 702 sends; If determine that the interference between the channel of described terminal 702 and the channel of described Home eNodeB 701 exceedes threshold value according to the interference indication information in described measurement report, for described terminal 702 changes carrier frequency, or, for described terminal 702 distributes the frequency band of described macro base station 703 with described Home eNodeB 701 non-overlapping copies.
The interference coordination system that the embodiment of the present invention provides, the measurement report comprising the interference indication information of described Home eNodeB broadcast sent by macro base station receiving terminal; Macro base station when determining that according to described measurement report the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value, for described terminal changes carrier frequency or the frequency band for macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies.Therefore, under the scene that macrocell under macro base station and the overlap of the Microcell under Home eNodeB cover, when the terminal under macro base station near or when entering under Home eNodeB Microcell, the interference that the telex network under macro base station and the telex network under Home eNodeB are subject to mutually can be alleviated, thus improve the service quality of user communication business.
One of ordinary skill in the art will appreciate that all or part of flow process realized in above-described embodiment method, that the hardware that can carry out instruction relevant by computer program has come, described program can be stored in a computer read/write memory medium, this program, when performing, can comprise the flow process of the embodiment as above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should described be as the criterion with the protection range of claim.
Claims (12)
1. a disturbance coordination method, is characterized in that, comprising:
The measurement report that macro base station receiving terminal sends, described measurement report comprises interference indication information, the signal quality information of described Home eNodeB and the signal quality information of described macro base station of the Home eNodeB broadcast measured by described terminal, and described interference indication information is broadcasted when detecting the interference being subject to described macro base station for described Home eNodeB;
If according to described interference indication information, described macro base station determines that the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value, described macro base station is that described terminal changes carrier frequency, or, the frequency band that described macro base station is macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies;
When the signal strength signal intensity of described Home eNodeB is not less than the signal strength signal intensity of described macro base station, described macro base station determines the mode of operation of described Home eNodeB, described mode of operation comprises mixed mode, open mode or closed mode, and in closed mode, described terminal belongs to the user of described closed user group;
Described macro base station determine the mode of operation of described Home eNodeB be mixed mode or open mode time, by described terminal switch to described Home eNodeB; Or described macro base station is determining that the mode of operation of described Home eNodeB is closed user group pattern, and when described terminal is the user of the closed user group of described Home eNodeB, by described terminal switch to described Home eNodeB.
2. method according to claim 1, is characterized in that, described macro base station exceedes threshold value according to the interference that described interference indication information is determined between the channel of described terminal and the channel of described Home eNodeB and comprises:
According to described interference indication information, described macro base station determines that the interference between the up channel of described terminal and the up channel of described Home eNodeB exceedes up threshold value;
According to described interference indication information, described macro base station determines that the interference between the down channel of described terminal and the down channel of described Home eNodeB exceedes descending threshold value.
3. method according to claim 2, is characterized in that, described macro base station exceedes up threshold value according to the interference that described interference indication information is determined between the up channel of described terminal and the up channel of described Home eNodeB and comprises:
Described macro base station is according to described interference indication information, and the up channel obtaining described Home eNodeB is subject to the interference value one of the up channel of described terminal;
If the interference value one of described acquisition is greater than the up threshold value of the interference between the up channel of described terminal and the up channel of described Home eNodeB, then determine that the interference between the up channel of described terminal and the up channel of described Home eNodeB exceedes up threshold value;
Described macro base station exceedes descending threshold value according to the interference that described interference indication information is determined between the down channel of described terminal and the down channel of described Home eNodeB and comprises:
Described macro base station is according to described interference indication information, and the down channel obtaining described terminal is subject to the interference value two of the down channel of described Home eNodeB;
If the interference value two of described acquisition is greater than the descending threshold value of the interference between the down channel of described terminal and the down channel of described Home eNodeB, then determine that the interference between the down channel of described terminal and the down channel of described Home eNodeB exceedes descending threshold value.
4. method according to claim 1, is characterized in that, also comprises before the frequency band that described macro base station is macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies:
Described macro base station determines that described macro base station and described Home eNodeB exist non-overlapped frequency band;
Described macro base station also comprises before controlling described terminal replacing carrier frequency:
Described macro base station determines that described macro base station and described Home eNodeB do not exist non-overlapped frequency band.
5., according to the arbitrary described method of claim 1-4, it is characterized in that, described method also comprises:
Described macro base station directly obtains interference details from described Home eNodeB, or described macro base station obtains interference details by X2 gateway from described Home eNodeB, and described interference details are the details that described Home eNodeB is interfered.
6., according to the arbitrary described method of claim 1-4, it is characterized in that, described method also comprises:
The measurement report that macro base station receives triggers described macro base station and obtains interference details from log server, and described interference details are that described log server receives and the interference details of the described Home eNodeB transmission of preserving.
7. a macro base station, is characterized in that, comprising:
Measurement report receiving element, for the measurement report that receiving terminal sends, described measurement report comprises interference indication information, the signal quality information of described Home eNodeB and the signal quality information of described macro base station of the Home eNodeB broadcast measured by described terminal, and described interference indication information is broadcasted when detecting the interference being subject to described macro base station for described Home eNodeB;
Interference processing unit, after described interference indication information for receiving according to described measurement report receiving element determines that the interference between the channel of described terminal and the channel of described Home eNodeB exceedes threshold value, for described terminal changes carrier frequency, or, be the frequency band of macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies;
Signal strength signal intensity judging unit, for judging that the signal strength signal intensity of described Home eNodeB is whether lower than the signal strength signal intensity of described macro base station;
Mode of operation determining unit, for when described signal strength signal intensity judging unit judges that the signal strength signal intensity of described Home eNodeB is not less than the signal strength signal intensity of described macro base station, determine the mode of operation of described Home eNodeB, described mode of operation comprises mixed mode, open mode or closed mode, and in closed mode, described terminal belongs to the user of described closed user group;
Switching treatmenting unit, for determine the mode of operation of described Home eNodeB be mixed mode or open mode time, by described terminal switch to described Home eNodeB; Or, determining that the mode of operation of described Home eNodeB is closed user group pattern, and when described terminal is the user of the closed user group of described Home eNodeB, by described terminal switch to described Home eNodeB.
8. macro base station according to claim 7, is characterized in that, described interference processing unit comprises:
Uply determine subelement, for determining that the interference between the up channel of described terminal and the up channel of described Home eNodeB exceedes up threshold value according to described interference indication information;
Descendingly determine subelement, for determining that the interference between the down channel of described terminal and the down channel of described Home eNodeB exceedes descending threshold value according to described interference indication information.
9. macro base station according to claim 8, is characterized in that, describedly uply determines that subelement comprises:
Up acquisition module, for according to described interference indication information, the up channel obtaining described Home eNodeB is subject to the interference value one of the up channel of described terminal;
Up determination module, if the interference value one for described up acquisition module acquisition is greater than the up threshold value of the interference between the up channel of described terminal and the up channel of described Home eNodeB, then determine that the interference between the up channel of described terminal and the up channel of described Home eNodeB exceedes up threshold value;
Describedly descendingly determine that subelement comprises:
Descending acquisition module, for according to described interference indication information, the down channel obtaining described terminal is subject to the interference value two of the down channel of described Home eNodeB;
Descending determination module, if the interference value two for described descending acquisition module acquisition is greater than the descending threshold value of the interference between the down channel of described terminal and the down channel of described Home eNodeB, then determine that the interference between the down channel of described terminal and the down channel of described Home eNodeB exceedes descending threshold value.
10. macro base station according to claim 7, is characterized in that, described interference processing unit comprises:
Non-overlapping frequency band judgment sub-unit, for judging whether described macro base station and described Home eNodeB exist non-overlapped frequency band;
Frequency band code reassignment subelement, for when described non-overlapping frequency band judgment sub-unit judges that described macro base station and described Home eNodeB exist non-overlapped frequency band, is the frequency band of macro base station described in described terminal distribution and described Home eNodeB non-overlapping copies;
Carrier frequency changes subelement, for when described non-overlapping frequency band judgment sub-unit judges that described macro base station and described Home eNodeB do not exist non-overlapped frequency band, for described terminal changes carrier frequency.
11., according to the arbitrary described macro base station of claim 7-10, is characterized in that, also comprise:
Interfere information acquiring unit, for directly obtaining interference details from described Home eNodeB, or, interference details are obtained from described Home eNodeB by X2 gateway, or, obtain the interference details of the described Home eNodeB transmission that described log server receives from log server, described interference details are the details that described Home eNodeB is interfered.
12. 1 kinds of interference coordination systems, is characterized in that, comprise Home eNodeB and terminal and the macro base station as described in claim 7 to 11 any one; Described Home eNodeB, for detecting the interference whether being subject to described macro base station, and indication information is disturbed in broadcast when detecting the interference being subject to described macro base station; Described terminal, obtains measurement report for the interference indication information sent according to described Home eNodeB, and sends described measurement report to described macro base station; The carrier frequency using described macro base station to change communicates, or, the frequency bands for communication of the described macro base station using described macro base station to distribute and described Home eNodeB non-overlapping copies.
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| ES2716833T3 (en) * | 2012-03-20 | 2019-06-17 | Nokia Solutions & Networks Oy | Methods, devices and software products for improvements in interference cancellation scenarios |
| CN103384371B (en) * | 2012-05-04 | 2016-12-14 | 华为技术有限公司 | Disturbance coordination method and device |
| WO2013181829A1 (en) * | 2012-06-07 | 2013-12-12 | Renesas Mobile Corporation | Apparatuses, methods and computer program products related to improvements in carrier loading status reports |
| EP2869636B1 (en) | 2012-08-10 | 2020-03-18 | Huawei Technologies Co., Ltd. | Mobility control method and device |
| CN103636249A (en) * | 2012-08-29 | 2014-03-12 | 华为技术有限公司 | Method, device and system for detecting indoor cell leakage |
| CN103716813B (en) * | 2012-09-28 | 2017-12-05 | 华为技术有限公司 | Link quality information processing method and base station |
| WO2014067086A1 (en) * | 2012-10-31 | 2014-05-08 | 华为技术有限公司 | Interference notification method, control method and related device |
| CN103796283B (en) * | 2012-10-31 | 2017-08-04 | 华为技术有限公司 | Select method, equipment and the system of serving cell |
| CN104838683A (en) * | 2012-11-16 | 2015-08-12 | 美国博通公司 | Low-power almost blank subframe (abs) in heterogeneous networks |
| CN104919866B (en) * | 2013-01-09 | 2020-06-19 | 安华高科技股份有限公司 | Method for interference cancellation in heterogeneous networks through low-power subframes |
| CN104703204B (en) * | 2013-12-05 | 2018-08-28 | 中国移动通信集团浙江有限公司 | A kind of the interference acquisition methods and device of timesharing long evolving system |
| CN103763708B (en) * | 2014-01-23 | 2017-07-14 | 上海无线通信研究中心 | A kind of network spectrum sharing method |
| CN105813157B (en) * | 2014-12-30 | 2020-02-28 | 北京佰才邦技术有限公司 | Frequency band replacing method and device |
| CN108668297B (en) * | 2017-03-29 | 2021-11-02 | 中国移动通信集团贵州有限公司 | Method, device and system for adjusting wireless switching timer |
| CN109068352A (en) * | 2018-09-28 | 2018-12-21 | 京信通信系统（中国）有限公司 | It eats dishes without rice or wine interference detection method, device and base station |
| CN114567892A (en) * | 2020-11-27 | 2022-05-31 | 展讯通信（上海）有限公司 | Access point interference coordination method, base station, user equipment and readable storage medium |
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