CN102123489B - Method, device and system for adjusting uplink power of micro base station - Google Patents
Method, device and system for adjusting uplink power of micro base station Download PDFInfo
- Publication number
- CN102123489B CN102123489B CN201010034012.8A CN201010034012A CN102123489B CN 102123489 B CN102123489 B CN 102123489B CN 201010034012 A CN201010034012 A CN 201010034012A CN 102123489 B CN102123489 B CN 102123489B
- Authority
- CN
- China
- Prior art keywords
- base station
- power
- micro
- macro base
- play amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention relates to the field of communications and discloses a method, device and system for adjusting an uplink power of a micro base station. The method comprises the following steps: when a macro base station causes interference on an uplink signal of the micro base station, an operational maintenance server or the micro base station acquires an uplink control power capable of resisting interference through calculation on the basis of an uplink interlayer power balance principle and in the term of an uplink target power of the macro base station, and adjusts the local uplink power of the micro base station according to the uplink control power. Therefore, when the macro base station causes the interference on the uplink signal of the micro base station, the uplink power of the micro base station can be properly adjusted, therefore, the strong interference caused by the macro base station is effectively overcome, and the signal quality of the macro base station is kept. The invention simultaneously discloses the operational maintenance server, the micro base station and a corresponding communication system.
Description
Technical field
The present invention relates to the communications field, particularly a kind of method, Apparatus and system of adjusting micro-base station power.
Background technology
Traditional mobile communication system, conventionally adopting macro base station (Macro) to realize individual layer signal covers, along with data rate and business load require growing, traditional individual layer signal coverage mode can not meet user demand, therefore, conventionally adopt hierarchical signal coverage mode to solve.So-called hierarchical signal coverage mode is to use macro base station to realize on the basis of individual layer signal covering, in hot zones or some lower powered micro-base stations (Home/Pico/Femto/Relay) of indoor deployment.Micro-base station is a kind of base station equipment being applied under family's indoor environment, working environment or the little overlay environment of other focus, and higher data rate can be provided, and reduces and realize cost.
But the user who adopts is at present switched and gravity treatment mechanism is selected in community, or formulate based on individual layer signal coverage mode, therefore, and between hierarchical signal coverage mode, there is inharmonious part, can use and make troubles to user.
Taking LTE network as example, the user of LTE network is switched and gravity treatment mechanism is selected in community, what mainly consider is single layer network topological structure, what adopt is based on reference signal received signal power (RSRP) maximum, and the maximum principle of reference signal received signal quality (RSRQ).Switch to example with user, its key step is:
1), behind the mobile terminal access service community that user uses, the base station in Serving cell sends measuring control information to this mobile terminal, is used to indicate it and carries out the measurement of RSRP or RSRQ, and require the principle measurement of mobile terminal based on certain to report.
For example, based on the EventA3 defining in existing protocol, require mobile terminal in the time meeting the following conditions, to carry out reporting of measuring amount (RSRP or RSRQ):
Adjacent cell measurement amount+side-play amount (offset) > Serving cell measuring amount formula one
Wherein, offset can be on the occasion of or negative value, under user's switching state, offset gets negative value conventionally.
2) mobile terminal carries out measurement and the judgement of associated arguments according to the instruction of the base station in Serving cell.
3), in the time that mobile terminal moves to edge, Serving cell, if current measuring amount meets formula one, mobile terminal reports to measuring amount the base station of Serving cell.
4) base station of Serving cell receives after the measuring amount reporting, if determine, this mobile terminal meets switching condition, initiates switching flow, and mobile terminal is switched to the adjacent cell that signal is stronger by Serving cell.
Based on above-mentioned flow process, in practical application, in order to regulate the size of overlay area, different districts, in Cell Broadcast CB, conventionally also dispose community individual character side-play amount Qoffset, so, formula one can be evolved into following content:
Measuring amount+Serving cell, adjacent cell measurement amount+adjacent cell Qoffset+offset > Serving cell Qoffset formula two
Introduce the ascending power control method in LTE network below, its principles illustrated is as follows again:
The up target power that base station arranges on the unit resource piece (RB) in Yi Ge community is P0, and the coefficient Alpha of path loss compensation;
Base station is P0 and Alpha, and descending power PDL on reference channel unit resource piece (RB), by information notice mobile terminals such as broadcast;
Mobile terminal carries out the measurement of RSRP, and estimates descending loss L=PDL-RSRP.
Mobile terminal is according to P0 and path loss penalty coefficient Alpha, and (RB) ascending power in unit of account Resource Block is: Pul=P0+Alpha*L;
Finally, mobile terminal is according to maximum transmission power, characteristic of channel parameter, and the parameters such as resource block number, determine up total transmitting power final on whole frequency band.
Said method is called the ascending power control method based on the compensation of part path loss, and the method is compensated and overcome near-far interference by path loss, ensures that center of housing estate and edge customer have identical target received power P0; In addition, by regulating target received power P0, can effectively control the up total received power of community, and will the interference power of adjacent area be controlled within the scope of an acceptable; Meanwhile, by regulating path loss bucking-out system Alpha, can reach and suitably heighten Cell Center User power, suitably reduce Cell Edge User power, thereby control the object of the interference to adjacent area.
Based on switching principle and Poewr control method under above-mentioned individual layer signal coverage mode, in the hierarchical network system of the larger covering difference of existence, in the time of the covering area overlapping of Yu Wei base station cell, the overlay area of macro base station community, the mobile terminal that is positioned near the macro base station cell edge in overlapping region, will cause larger interference to the upward signal of micro-base station cell.This is due to the edge, overlay area in macro base station and micro-base station, belong to mobile terminal (hereinafter referred to as MUE) to the macro base station path loss in its Serving cell, be far longer than ownership to the mobile terminal (hereinafter referred to as LUE) of micro-base station the path loss in its Serving cell, so, the power compensating value of macro base station to MUE, be far longer than the power compensating value of micro-base station to LUE, therefore, the MUE of cell edge will cause larger interference to LUE.
For example, consult shown in Fig. 1, the descending power of supposing macro base station is PDL1=46dBm, and the descending power of micro-base station is PDL2=24dBm.Cell Edge User UE1 belongs to macro base station (being Macro NodeB), and UE1 is L1=146dB to the loss of macro base station, and to micro-base station, the loss of (being Pico Node B) is L2=124dB; Cell Edge User UE2 ownership is to micro-base station, and UE2 is L1=146dB to the loss of macro base station, is L2=124dB to the loss of micro-base station.Meanwhile, supposes that macro base station and micro-base station are in the time carrying out uplink power control, adopt identical up target power P01=P02=P0, and path loss penalty coefficient is Alpha=1, can calculate:
The ascending power of MUE is: PUL1=P0+L1, and the interference power that micro-base station is caused is: PI2=P0+L1-L2=P0+22;
The ascending power of LUE is: PUL2=P0+L2, micro-base station for the up target power of LUE configuration is: P0.
Can find out from above-mentioned result of calculation, MUE is the up target power higher than micro-base station to the interference power of coverage cell, micro-base station, and it differs 22dB, like this, the quality of uplink signal of UE2 in coverage cell, micro-base station is difficult to guarantee, thereby has influence on the normal operation of UE2.
Summary of the invention
The embodiment of the present invention provides a kind of method, Apparatus and system of adjusting micro-base station ascending power, in order in hierarchical signal overlay network, reduces the interference of macro base station to micro-base station upward signal.
The concrete technical scheme that the embodiment of the present invention provides is as follows:
A method of adjusting micro-base station ascending power, comprising:
Operation and Maintenance server is known when micro-base station is disturbed by macro base station, at least one macro base station is defined as to objects interfered;
Described Operation and Maintenance server, based on power-balance principle between uplink layer, calculates its interference power according to the up target power of described at least one macro base station, and determines the upload control power of micro-base station according to this interference power;
Described upload control power is sent to described micro-base station by described Operation and Maintenance server, indicates this micro-base station to adjust its local ascending power according to the upload control power obtaining;
Wherein, adopt formula Ppico=P
disturb=PMacro+ (PDLl+Qoffsetl+QHysl) * Alphal-(PDL2+Qoffset2+QHys2) * Alpha2 calculates the upload control power of described micro-base station; Or, if only comprise its corresponding descending power in lower floor's coverage information that macro base station and micro-base station report, or only comprise descending power and individual character side-play amount, adopt following formula: Ppico=P
disturb=PMacro+ (PDLl) * Alphal-(PDL2) * Alpha2; Ppico=P
disturb=PMacro+ (PDLl+Qoffsetl) * Alphal-(PDL2+Qoffset2) * Alpha2 calculates the upload control power of described micro-base station; Wherein, the upload control power that Ppico is micro-base station, P
disturbfor the interference power of described at least one macro base station, PMacro, PDLl, Qoffsetl, QHysl and Alphal are respectively up target power, descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described at least one macro base station, and PDL2, Qoffset2, QHys2 and Alpha2 are respectively descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described micro-base station.
A kind of Operation and Maintenance server, comprising:
Processing unit, in the time knowing that micro-base station is disturbed by macro base station, is defined as objects interfered by least one macro base station;
Computing unit, for based on power-balance principle between uplink layer, calculates its interference power according to the up target power of described at least one macro base station, and determines the upload control power of micro-base station according to this interference power;
Notification unit, for described upload control power is sent to described micro-base station, indicates this micro-base station to adjust its local ascending power according to the upload control power obtaining;
Wherein, adopt formula Ppico=P
disturb=PMacro+ (PDLl+Qoffsetl+QHysl) * Alphal-(PDL2+Qoffset2+QHys2) * Alpha2 calculates the upload control power of described micro-base station; Or, if only comprise its corresponding descending power in lower floor's coverage information that macro base station and micro-base station report, or only comprise descending power and individual character side-play amount, adopt following formula: Ppico=P
disturb=PMacro+ (PDLl) * Alphal-(PDL2) * Alpha2; Ppico=P
disturb=PMacro+ (PDL1+Qoffsetl) * Alphal-(PDL2+Qoffset2) * Alpha2 calculates the upload control power of described micro-base station; Wherein, the upload control power that Ppico is micro-base station, P
disturbfor the interference power of described at least one macro base station, PMacro, PDLl, Qoffsetl, QHysl and Alphal are respectively up target power, descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described at least one macro base station, and PDL2, Qoffset2, QHys2 and Alpha2 are respectively descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described micro-base station.
A kind of communication system, comprising:
Macro base station, covers for realizing grand district signal;
Micro-base station, covers for realizing microcell signal;
Operation and Maintenance server, for in the time knowing that micro-base station is disturbed by macro base station, at least one macro base station is defined as to objects interfered, and based on power-balance principle between uplink layer, calculate its interference power according to the up target power of described at least one macro base station, determine corresponding upload control power according to this interference power again, and described upload control power is sent to described micro-base station, indicate this micro-base station to adjust its local ascending power according to the upload control power obtaining;
Wherein, adopt formula Ppico=P
disturb=PMacro+ (PDLl+Qoffsetl+QHysl) * Alphal-(PDL2+Qoffset2+QHys2) * Alpha2 calculates the upload control power of described micro-base station; Or, if only comprise its corresponding descending power in lower floor's coverage information that macro base station and micro-base station report, or only comprise descending power and individual character side-play amount, adopt following formula: Ppico=P
disturb=PMacro+ (PDLl) * Alphal-(PDL2) * Alpha2; Ppico=P
disturb=PMacro+ (PDL1+Qoffsetl) * Alphal-(PDL2+Qoffset2) * Alpha2 calculates the upload control power of described micro-base station; Wherein, the upload control power that Ppico is micro-base station, P
disturbfor the interference power of described at least one macro base station, PMacro, PDLl, Qoffsetl, QHysl and Alphal are respectively up target power, descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described at least one macro base station, and PDL2, Qoffset2, QHys2 and Alpha2 are respectively descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described micro-base station.
A method of adjusting micro-base station ascending power, comprising:
Micro-base station is known when this locality is disturbed by macro base station, at least one macro base station is defined as to objects interfered;
Its interference power, based on power-balance principle between uplink layer, is calculated according to the up target power of described at least one macro base station in described micro-base station, and determines corresponding upload control power according to this interference power;
Local ascending power is adjusted according to described upload control power in described micro-base station;
Wherein, described micro-base station adopts formula Ppico=P
disturb=PMacro+ (PDLl+Qoffsetl+QHys1) * Alphal-(PDL2+Qoffset2+QHys2) * Alpha2 calculates corresponding upload control power; Or, if only comprise its corresponding descending power in lower floor's coverage information that macro base station and micro-base station report, or only comprise descending power and individual character side-play amount, adopt following formula: Ppico=P
disturb=PMacro+ (PDLl) * Alphal-(PDL2) * Alpha2; Ppico=P
disturb=PMacro+ (PDL1+Qoffsetl) * Alphal-(PDL2+Qoffset2) * Alpha2 calculates the upload control power of described micro-base station; Wherein, the upload control power that Ppici is micro-base station, P
disturbfor the interference power of described at least one macro base station, PMacro, PDLl, Qoffsetl, QHysl and Alphal are respectively up target power, descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described at least one macro base station, and PDL2, Qoffset2, QHys2 and Alpha2 are respectively descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described micro-base station.
A kind of micro-base station, comprising:
Processing unit, in the time knowing that this locality is disturbed by macro base station, is defined as objects interfered by least one macro base station;
Computing unit, for based on power-balance principle between uplink layer, calculates its interference power according to the up target power of described at least one macro base station, and determines corresponding upload control power according to this interference power;
Adjustment unit, for adjusting local ascending power according to described upload control power;
Wherein, adopt formula Ppico=P
disturb=PMacro+ (PDLl+Qoffsetl+QHysl) * Alphal-(PDL2+Qoffset2+QHys2) * Alpha2 calculates the upload control power of described micro-base station; Or, if only comprise its corresponding descending power in lower floor's coverage information that macro base station and micro-base station report, or only comprise descending power and individual character side-play amount, adopt following formula: Ppico=P
disturb=PMacro+ (PDLl) * Alphal-(PDL2) * Alpha2; Ppico=P
disturbpMzcro+ (PDL1+Qoffsetl) * Alphal-(PDL2+Qoffset2) * Alpha2 calculates the upload control power of described micro-base station; Pplco is the upload control power of micro-base station, P
disturbfor the interference power of described at least one macro base station, PMacro, PDLl, Qoffsetl, QHysl and Alphal are respectively up target power, descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described at least one macro base station, and PDL2, Qoffset2, QHys2 and Alpha2 are respectively descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described micro-base station.
A kind of communication system, comprising:
Macro base station, covers for realizing grand district signal;
Micro-base station, being used for realizing microcell signal covers, and in the time knowing that this locality is disturbed by macro base station, at least one macro base station is defined as to objects interfered, and based on power-balance principle between uplink layer, calculate its interference power according to the up target power of described at least one macro base station, then determine corresponding upload control power according to this interference power, and adjust local ascending power according to described upload control power; Wherein, adopt formula Ppico=P
disturb=PMacro+ (PDLl+Qoffsetl+QHysl) * Alphal-(only comprises its corresponding descending power in lower floor's coverage information that PDL2+ and micro-station report, or only comprise descending power and individual character side-play amount, adopt following formula: Ppico=P
disturb=PMzcro+ (PDL1) * Alphal-(PDL2) * Alpha2; Ppico=P
disturb=PMacro+ (PDLl+Qoffsetl) * Alphal-(PDL2+Qoffset2) * Alpha2 calculates the upload control power of described micro-base station; Wherein, the upload control power that Ppico is micro-base station, P
disturbfor the interference power of described at least one macro base station, PMacro, PDLl, Qoffsetl, QHysl and Alphal are respectively up target power, descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described at least one macro base station, and PDL2, Qoffset2, QHys2 and Alpha2 are respectively descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described micro-base station.
In sum, in the embodiment of the present invention, in the time that macro base station causes interference to the upward signal of micro-base station, by Operation and Maintenance server or micro-base station self, based on power-balance principle between uplink layer, taking the up target power of macro base station as benchmark, calculate and can support jamproof upload control power, and adjust the ascending power of micro-base station according to this upload control power.Like this, can, in the time that macro base station causes interference to the upward signal of micro-base station, suitably adjust the ascending power of micro-base station, thereby effectively overcome the strong jamming that macro base station causes, kept the signal quality of micro-base station.
Brief description of the drawings
Fig. 1 is that schematic diagram is disturbed in the prior art lower leaf network coverage;
Fig. 2 is macro base station and micro-base station distribution schematic diagram in the embodiment of the present invention;
Fig. 3 is hierarchical network architectural framework figure in the embodiment of the present invention;
Fig. 4 is Operation and Maintenance server capability structure chart in the embodiment of the present invention;
Fig. 5 is that in the embodiment of the present invention, Operation and Maintenance server is adjusted micro-base station ascending power flow chart;
Fig. 6 is micro-base station functions structure chart in the embodiment of the present invention;
Fig. 7 is that in the embodiment of the present invention, local ascending power flow chart is adjusted in micro-base station.
Embodiment
In hierarchical signal overlay network (being designated hereinafter simply as hierarchical network), in order to reduce the interference of macro base station to micro-base station upward signal, in the embodiment of the present invention, provide a kind of method of adjusting micro-base station ascending power.Agreement based on existing LTE system and framework, said method can be divided into centralized and distributed two kinds of adjustment modes.
So-called centralized method of adjustment, be by Operation and Maintenance server, the ascending power of micro-base station to be adjusted, it is specially: Operation and Maintenance server is known when micro-base station is disturbed by macro base station, at least one macro base station is defined as to objects interfered, and based on power-balance principle between uplink layer, calculate its interference power according to the up target power of described at least one macro base station, determine again the upload control power of micro-base station according to this interference power, and described upload control power is sent to described micro-base station, indicate this micro-base station to adjust its local ascending power according to the upload control power obtaining.
So-called distributed method of adjustment, be by micro-base station, local ascending power to be adjusted, it is specially: micro-base station is known when this locality is disturbed by macro base station, at least one macro base station is defined as to objects interfered, and based on power-balance principle between uplink layer, calculate its interference power according to the up target power of described at least one macro base station, then determine corresponding upload control power according to this interference power, and adjust local ascending power according to described upload control power.
Below in conjunction with accompanying drawing, above-mentioned two kinds of methods are described respectively.
Consult shown in Fig. 2, in the embodiment of the present invention, in the hierarchical network based on LTE agreement and framework, some macro base stations and micro-base station are distributing.
First, centralized method of adjustment is introduced.Consult shown in Fig. 3, in the embodiment of the present invention, if adopt centralized method of adjustment, one Operation and Maintenance server need to be set in hierarchical network, also referred to as Operation Administration and Maintenance, be called for short OAM, for managing some macro base stations and the micro-base station in appointed area.Wherein,
Macro base station, covers for realizing grand district signal;
Micro-base station, covers for realizing microcell signal;
Operation and Maintenance server, for in the time knowing that micro-base station is disturbed by macro base station, at least one macro base station is defined as to objects interfered, and based on power-balance principle between uplink layer, calculate its interference power according to the up target power of described at least one macro base station, determine again the upload control power of micro-base station according to this interference power, and described upload control power is sent to described micro-base station, indicate this micro-base station to adjust its local ascending power according to the upload control power obtaining.
Consult shown in Fig. 4, in the embodiment of the present invention, Operation and Maintenance server comprises processing unit 10, computing unit 11 and notification unit 12, wherein,
Processing unit 10, in the time knowing that micro-base station is disturbed by macro base station, is defined as objects interfered by least one macro base station;
Computing unit 11, for based on power-balance principle between uplink layer, calculates its interference power according to the up target power of described at least one macro base station, then determines the upload control power of micro-base station according to this interference power;
Notification unit 12, for described upload control power is sent to described micro-base station, indicates this micro-base station to adjust its local ascending power according to the upload control power obtaining.
Based on said system framework, in the time adopting centralized method of adjustment, Operation and Maintenance server need to obtain descending coverage information and the uplink power control parameter of each macro base station and micro-base station in the hierarchical network in compass of competency, wherein, descending coverage information is including but not limited to following parameter: descending power PDL, individual character side-play amount Qoffset, layer side-play amount QHys), and uplink power control parameter is including but not limited to up target power P0, path loss penalty coefficient Alpha.Then, Operation and Maintenance server, based on up target power matching principle, calculates the upload control power P 0 ' that is applicable to each micro-base station, and notifies each macro base station and micro-base station by result of calculation, to adjust accordingly.
When certain macro base station in system or/and the descending coverage information of micro-base station or/and when uplink power control parameter change, need to notify Operation and Maintenance server, to recalculate the upload control power of each micro-base station.
Below a concrete enforcement is described in detail to centralized method of adjustment.
In practical application, preferably, Operation and Maintenance server is determined when macro base station causes interference to micro-base station, just the ascending power of micro-base station is adjusted, determining causes the method for interference to comprise: the up target power of the interference power of certain macro base station and micro-base station is compared, determine when the former is greater than the latter, macro base station is defined as to the objects interfered of micro-base station.
In the embodiment of the present invention, in the compass of competency of Operation and Maintenance server, suppose to exist a macro base station and a micro-base station; So, consult shown in Fig. 5, in the time that macro base station causes interference to micro-base station, the detailed process that Operation and Maintenance server is adjusted the ascending power of micro-base station is as follows:
Step 500: obtain macro base station in compass of competency and descending coverage information and the uplink power control parameter of micro-base station.
In the embodiment of the present invention, suppose that the descending coverage information of macro base station is: descending power PDL1, individual character side-play amount Qoffset1, layer side-play amount QHys1; And uplink power control parameter is: up target power P01, path loss penalty coefficient Alpha1; Meanwhile, suppose that the descending coverage information of micro-base station is: descending power PDL2, individual character side-play amount Qoffset2, layer side-play amount QHys2, and uplink power control parameter is: up target power P02, path loss penalty coefficient Alpha2.
Step 510: according to the up target power of macro base station, based on power-balance principle between uplink layer, calculate the interference power that obtains macro base station, and determine the upload control power P pico of micro-base station according to this interference power.
In order to realize preferably power-balance effect, in the embodiment of the present invention, using the value of macro base station interference power, directly as the value of micro-base station upload control power, so, the computing formula of the upload control power P pico based on power-balance principle between uplink layer is:
Ppico=P
disturb=PMacro+ (PDL1+Qoffset1+QHys1) * Alpha1-(PDL2+Qoffset2+QHys2) * Alpha2 formula three
In the present embodiment, suppose the up target power P01=PMacro=-90dBm of macro base station, PDL1=46dBm, Qoffset1=0dB, QHys1=0dB, PDL2=24dBm, Qoffset2=0dB, QHys2=3dB, Alpha1=Alpha2=1, adopts above-mentioned formula three to calculate:
Ppico=P
disturb=-90+ (46+0+0) * 1-(24+0+3) * 1=-71dBm.
Certainly, formula three is only execution mode preferably, if only comprise its corresponding descending power in lower floor's coverage information that macro base station and micro-base station report, or only comprises descending power and individual character side-play amount, and above-mentioned formula three can also be evolved into following two kinds of formula:
Ppico=P
disturb=PMacro+ (PDL1) * Alpha1-(PDL2) * Alpha2 formula four
Ppico=P
disturb=PMacro+ (PDL1+Qoffset1) * Alpha1-(PDL2+Qoffset2) * Alpha2
Formula five
In following examples, only carry out related description as an example of formula three example.
Step 520: the ascending power value controlling value Ppico after adjusting is sent to micro-base station, indicates micro-base station to adjust ascending power according to the Ppico receiving.
In the present embodiment, up target power based on macro base station calculates its interference power, determine again the upload control power of micro-base station according to this interference power, and adjust the ascending power of micro-base station according to this upload control power, due to upload control power and the mutual balance of interference power, therefore, micro-base station adopts the strong jamming that the ascending power after adjusting can be resisted macro base station effectively.
In practical application, if there are multiple macro base stations that micro-base station caused to interference, Operation and Maintenance server by with the nearest macro base station of micro-base station distance as objects interfered, calculate corresponding upload control power; Or, macro base station the strongest interference power, as objects interfered, is calculated to corresponding upload control power; Or the information sending according to each macro base station is calculated respectively corresponding upload control power, then averages as the upload control power of micro-base station.
Certainly,, based on above-described embodiment, Operation and Maintenance server can or carry out ascending power adjustment in succession to the some micro-base station synchronization in compass of competency, does not repeat them here.
In the above-described embodiments, if any one or more parameters in the descending coverage information of micro-base station and uplink power control parameter for a certain reason (as, cover variation) carry out corresponding adjustment, as, suppose that its descending power is adjusted into PDL2 '=28dBm by PDL2=24, micro-base station notice will be adjusted result notice Operation and Maintenance server, Operation and Maintenance server will recalculate the upload control power P picon ' of this micro-base station according to formula three, be specially: Ppicon '=-90+46-(28+3)=-85dBm; Then, the Ppicon ' newly calculating is sent to above-mentioned micro-base station by Operation and Maintenance server, to indicate it to configure corresponding ascending power.Certainly, when any one or more parameters in descending coverage information and the uplink power control parameter of macro base station change, also need the upload control power of notifying Operation and Maintenance server to recalculate micro-base station, do not repeat them here.
Centralized method of adjustment is different from adopting, in the embodiment of the present invention, when adopting when distributed method of adjustment, need to be in hierarchical network setting operation maintenance server, but complete corresponding operation by each micro-base station.Consult shown in Fig. 2, Installed System Memory is in some macro base stations and micro-base station, wherein,
Macro base station, covers for realizing grand district signal;
Micro-base station, being used for realizing microcell signal covers, and in the time knowing that this locality is disturbed by macro base station, at least one macro base station is defined as to objects interfered, and based on power-balance principle between uplink layer, calculate its interference power according to the up target power of described at least one macro base station, then determine corresponding upload control power according to this interference power, and adjust local ascending power according to described upload control power.
Be specially: macro base station, by X2 interface (in existing LTE system, base station is to the interface of base station), sends descending coverage information and the uplink power control parameter of this community to adjacent area; In hierarchical network, receive after above-mentioned information in micro-base station of bottom, according to formula three, taking the up target power of macro base station as benchmark, calculate the local upload control power using, and carry out relevant configuration according to it.In the community that there is no X2 interface, micro-base station can be by read the broadcast message of macro base station by air interface, thereby obtain descending coverage information and the uplink power control parameter of macro base station, to calculate and to configure local upload control power.
Complete after initial configuration, if any one or more parameters in the descending coverage information of macro base station and uplink power control parameter change, macro base station can be by X2 interface or air interface by the descending coverage information after upgrading or/and uplink power control parameter is sent to micro-base station, local upload control power is recalculated and configured in micro-base station, according to the information again receiving, according to formula three.In addition, when variation has occurred any one or more parameters in descending coverage information and the uplink power control parameter of micro-base station, also need to recalculate and configure corresponding upload control power, do not repeat them here.
Consult shown in Fig. 6, in the embodiment of the present invention, micro-base station comprises processing unit 20, computing unit 21 and adjustment unit 22, wherein,
Processing unit 20, in the time knowing that this locality is disturbed by macro base station, is defined as objects interfered by least one macro base station;
Computing unit 21, for based on power-balance principle between uplink layer, calculates its interference power according to the up target power of described at least one macro base station, then determines corresponding upload control power according to this interference power;
Adjustment unit 22, for adjusting local ascending power according to described upload control power
Based on above-mentioned principle, in the present embodiment, still, to exist a macro base station of interference relationships and a micro-base station as example in hierarchical network, so, to consult shown in Fig. 7, the detailed process that micro-base station is adjusted local ascending power is as follows:
Step 700: receive descending coverage information and uplink power control parameter that macro base station sends.
In the embodiment of the present invention, micro-base station can receive descending coverage information and the uplink power control parameter that macro base station sends by X2 interface or air interface.
In the embodiment of the present invention, suppose that the descending coverage information of macro base station is: descending power PDL1, individual character side-play amount Qoffset1, layer side-play amount QHys1; And uplink power control parameter is: up target power P01, path loss penalty coefficient Alpha1.
In practical application, preferably, the information that micro-base station sends according to macro base station, when the interference power of determining macro base station exceedes local up target power P02, just carries out subsequent operation, otherwise does not do any processing.
Step 710: obtain local descending coverage information and uplink power control parameter.
The descending coverage information of supposing micro-base station is: descending power PDL2, individual character side-play amount Qoffset2, layer side-play amount QHys2; And uplink power control parameter is: up target power P02, path loss penalty coefficient Alpha2.
Step 720: according to the up target power P01 of macro base station, based on power-balance principle between uplink layer, calculate the interference power that obtains macro base station, and determine corresponding upload control power P pico according to this interference power.
With step 510 in like manner, in order to realize preferably power-balance effect, in the present embodiment, the value of macro base station interference power, directly as the value of micro-base station upload control power, so, is supposed to PDL1=46dBm, Qoffset1=0dB, QHys1=0dB, and PDL2=24dBm, Qoffset2=0dB, QHys2=3dB, Alpha1=Alpha2=1, P01=PMacro=-90dBm, can calculate upload control power P pico according to formula three and be: Ppico=P
disturb=-90+ (46+0+0) * 1-(24+0+3) * 1=-71dBm.
In practical application, if micro-base station receives multiple descending coverage information and uplink power control parameters that cause the macro base station of interference to send, and data are different, the local nearest macro base station of micro-base station selected distance, as objects interfered, calculates corresponding upload control power; Or, select the strongest macro base station of interference power as objects interfered, calculate corresponding upload control power; Or the information sending according to each macro base station is calculated respectively corresponding upload control power, then is averaged.
Step 730: according to calculating the Ppico obtaining, adjust local ascending power.
In sum, in the embodiment of the present invention, in the time that macro base station causes interference to the upward signal of micro-base station, by Operation and Maintenance server or micro-base station self, based on power-balance principle between uplink layer, taking the up target power of macro base station as benchmark, calculate and can support jamproof upload control power, and adjust the ascending power of micro-base station according to this upload control power.Like this, can, in the time that macro base station causes interference to the upward signal of micro-base station, suitably adjust the ascending power of micro-base station, thereby effectively overcome the strong jamming that macro base station causes, kept the signal quality of micro-base station.
Obviously, those skilled in the art can carry out various changes and modification and not depart from the spirit and scope of the present invention the embodiment in the present invention.Like this, if these amendments in the embodiment of the present invention and within modification belongs to the scope of the claims in the present invention and equivalent technologies thereof, the embodiment in the present invention is also intended to comprise these changes and modification interior.
Claims (14)
1. a method of adjusting micro-base station ascending power, is characterized in that, comprising:
Operation and Maintenance server is known when micro-base station is disturbed by macro base station, at least one macro base station is defined as to objects interfered;
Described Operation and Maintenance server, based on power-balance principle between uplink layer, calculates its interference power according to the up target power of described at least one macro base station, and determines the upload control power of micro-base station according to this interference power;
Described upload control power is sent to described micro-base station by described Operation and Maintenance server, indicates this micro-base station to adjust its local ascending power according to the upload control power obtaining;
Wherein, adopt formula Ppico=P
disturb=PMacro+ (PDL1+Qoffset1+QHys1) * Alpha1-(PDL2+Qoffset2+QHys2) * Alpha2 calculates the upload control power of described micro-base station; Or, if only comprise its corresponding descending power in the descending coverage information that macro base station and micro-base station report, or only comprise and descending power and individual character side-play amount adopt respectively following formula: Ppico=P
disturb=PMacro+ (PDL1) * Alpha1-(PDL2) * Alpha2, Ppico=P
dry disturb=PMacro+ (PDL1+Qoffset1) * Alpha1-(PDL2+Qoffset2) * Alpha2 calculates the upload control power of described micro-base station; Wherein, the upload control power that Ppico is micro-base station, P
disturbfor the interference power of described at least one macro base station, PMacro, PDL1, Qoffset1, QHys1 and Alpha1 are respectively up target power, descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described at least one macro base station, and PDL2, Qoffset2, QHys2 and Alpha2 are respectively descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described micro-base station.
2. the method for claim 1, it is characterized in that, when described Operation and Maintenance server is known any one or multiple the changing in following parameter, parameter based on after changing recalculates the upload control power of described micro-base station, wherein, described parameter comprises: the up target power of described at least one macro base station, descending power, individual character side-play amount, layer side-play amount and path loss penalty coefficient, and any one or more parameters in the descending power of described micro-base station, individual character side-play amount, layer side-play amount and path loss penalty coefficient.
3. method as claimed in claim 1 or 2, is characterized in that, described Operation and Maintenance server is known when micro-base station is disturbed by macro base station, and at least one macro base station is defined as to objects interfered, comprising:
Described Operation and Maintenance server is known when micro-base station is disturbed by two or more macro base stations, the nearest macro base station in the described micro-base station of distance is defined as to objects interfered; Or, macro base station the strongest interference power is defined as to objects interfered; Or, each macro base station is all defined as to objects interfered.
4. method as claimed in claim 3, it is characterized in that, if each macro base station is all defined as objects interfered by described Operation and Maintenance server, this Operation and Maintenance server is based on power-balance principle between uplink layer, calculate respectively corresponding interference power according to the up target power of each macro base station, and determine corresponding upload control power, then average as the upload control power of described micro-base station.
5. method as claimed in claim 1 or 2, is characterized in that, the number of described micro-base station is one or more.
6. an Operation and Maintenance server, is characterized in that, comprising:
Processing unit, in the time knowing that micro-base station is disturbed by macro base station, is defined as objects interfered by least one macro base station;
Computing unit, for based on power-balance principle between uplink layer, calculates its interference power according to the up target power of described at least one macro base station, and determines the upload control power of micro-base station according to this interference power;
Notification unit, for described upload control power is sent to described micro-base station, indicates this micro-base station to adjust its local ascending power according to the upload control power obtaining;
Wherein, adopt formula Ppico=P
disturb=PMacro+ (PDL1+Qoffset1+QHys1) * Alpha1-(PDL2+Qoffset2+QHys2) * Alpha2 calculates the upload control power of described micro-base station; Or, if only comprise its corresponding descending power in the descending coverage information that macro base station and micro-base station report, or only comprise and descending power and individual character side-play amount adopt respectively following formula: Ppico=P
disturb=PMacro+ (PDL1) * Alpha1-(PDL2) * Alpha2, Ppico=P
dry disturb=PMacro+ (PDL1+Qoffset1) * Alpha1-(PDL2+Qoffset2) * Alpha2 calculates the upload control power of described micro-base station; Wherein, the upload control power that Ppico is micro-base station, P
disturbfor the interference power of described at least one macro base station, PMacro, PDL1, Qoffset1, QHys1 and Alpha1 are respectively up target power, descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described at least one macro base station, and PDL2, Qoffset2, QHys2 and Alpha2 are respectively descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described micro-base station.
7. a communication system, is characterized in that, comprising:
Macro base station, covers for realizing grand district signal;
Micro-base station, covers for realizing microcell signal;
Operation and Maintenance server, for in the time knowing that micro-base station is disturbed by macro base station, at least one macro base station is defined as to objects interfered, and based on power-balance principle between uplink layer, calculate its interference power according to the up target power of described at least one macro base station, determine again the upload control power of micro-base station according to this interference power, and described upload control power is sent to described micro-base station, indicate this micro-base station to adjust its local ascending power according to the upload control power obtaining;
Wherein, adopt formula Ppico=P
disturb=PMacro+ (PDL1+Qoffset1+QHys1) * Alpha1-(PDL2+Qoffset2+QHys2) * Alpha2 calculates the upload control power of described micro-base station; Or, if only comprise its corresponding descending power in the descending coverage information that macro base station and micro-base station report, or only comprise and descending power and individual character side-play amount adopt respectively following formula: Ppico=P
disturb=PMacro+ (PDL1) * Alpha1-(PDL2) * Alpha2, Ppico=P
dry disturb=PMacro+ (PDL1+Qoffset1) * Alpha1-(PDL2+Qoffset2) * Alpha2 calculates the upload control power of described micro-base station; Wherein, the upload control power that Ppico is micro-base station, P
disturbfor the interference power of described at least one macro base station, PMacro, PDL1, Qoffset1, QHys1 and Alpha1 are respectively up target power, descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described at least one macro base station, and PDL2, Qoffset2, QHys2 and Alpha2 are respectively descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described micro-base station.
8. a method of adjusting micro-base station ascending power, is characterized in that, comprising:
Micro-base station is known when this locality is disturbed by macro base station, at least one macro base station is defined as to objects interfered;
Its interference power, based on power-balance principle between uplink layer, is calculated according to the up target power of described at least one macro base station in described micro-base station, and determines corresponding upload control power according to this interference power;
Local ascending power is adjusted according to described upload control power in described micro-base station;
Wherein, described micro-base station adopts formula Ppico=P
disturb=PMacro+ (PDL1+Qoffset1+QHys1) * Alpha1-(PDL2+Qoffset2+QHys2) * Alpha2 calculates corresponding upload control power; Or, if only comprise its corresponding descending power in the descending coverage information that macro base station and micro-base station report, or only comprise and descending power and individual character side-play amount adopt respectively following formula: Ppico=P
disturb=PMacro+ (PDL1) * Alpha1-(PDL2) * Alpha2, Ppico=P
dry disturb=PMacro+ (PDL1+Qoffset1) * Alpha1-(PDL2+Qoffset2) * Alpha2 calculates the upload control power of described micro-base station; Wherein, the upload control power that Ppico is micro-base station, P
disturbfor the interference power of described at least one macro base station, PMacro, PDL1, Qoffset1, QHys1 and Alpha1 are respectively up target power, descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described at least one macro base station, and PDL2, Qoffset2, QHys2 and Alpha2 are respectively descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described micro-base station.
9. method as claimed in claim 8, it is characterized in that, when any one or multiple the changing in following parameter known in described micro-base station, parameter based on after changing recalculates corresponding upload control power, wherein, described parameter comprises: the up target power of described at least one macro base station, descending power, individual character side-play amount, layer side-play amount and path loss penalty coefficient, and any one or more parameters in local descending power, individual character side-play amount, layer side-play amount and path loss penalty coefficient.
10. method as claimed in claim 8, is characterized in that, described micro-base station obtains corresponding up target power by X2 interface or air interface from described at least one macro base station.
11. methods as described in claim 8-10 any one, is characterized in that, described micro-base station is known local while being disturbed by macro base station, and at least one macro base station is defined as to objects interfered, comprising:
Described micro-base station device is known when this locality is disturbed by two or more macro base stations, and local distance nearest macro base station will be defined as to objects interfered; Or, macro base station the strongest interference power is defined as to objects interfered; Or, each macro base station is all defined as to objects interfered.
12. methods as claimed in claim 11, it is characterized in that, if each macro base station is all defined as objects interfered by described micro-base station, this micro-base station is based on power-balance principle between uplink layer, calculate respectively corresponding interference power according to the up target power of each macro base station, and determine corresponding upload control power, then average as local upload control power.
13. 1 kinds of micro-base stations, is characterized in that, comprising:
Processing unit, in the time knowing that this locality is disturbed by macro base station, is defined as objects interfered by least one macro base station;
Computing unit, for based on power-balance principle between uplink layer, calculates its interference power according to the up target power of described at least one macro base station, and determines corresponding upload control power according to this interference power;
Adjustment unit, for adjusting local ascending power according to described upload control power;
Wherein, adopt formula Ppico=P
disturb=PMacro+ (PDL1+Qoffset1+QHys1) * Alpha1-(PDL2+Qoffset2+QHys2) * Alpha2 calculates the upload control power of described micro-base station; Or, if only comprise its corresponding descending power in the descending coverage information that macro base station and micro-base station report, or only comprise and descending power and individual character side-play amount adopt respectively following formula: Ppico=P
disturb=PMacro+ (PDL1) * Alpha1-(PDL2) * Alpha2; Ppico=P
dry disturb=PMacro+ (PDL1+Qoffset1) * Alpha1-(PDL2+Qoffset2) * Alpha2 calculates the upload control power of described micro-base station; Wherein, the upload control power that Ppico is micro-base station, P
disturbfor the interference power of described at least one macro base station, PMacro, PDL1, Qoffset1, QHys1 and Alpha1 are respectively up target power, descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described at least one macro base station, and PDL2, Qoffset2, QHys2 and Alpha2 are respectively descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described micro-base station.
14. 1 kinds of communication systems, is characterized in that, comprising:
Macro base station, covers for realizing grand district signal;
Micro-base station, being used for realizing microcell signal covers, and in the time knowing that this locality is disturbed by macro base station, at least one macro base station is defined as to objects interfered, and based on power-balance principle between uplink layer, calculate its interference power according to the up target power of described at least one macro base station, and determine corresponding upload control power according to this interference power, then adjust local ascending power according to described upload control power; Wherein, adopt formula Ppico=P
disturb=PMacro+ (PDL1+Qoffset1+QHys1) * Alpha1-(PDL2+Qoffset2+QHys2) * Alpha2 calculates the upload control power of described micro-base station; Or, if only comprise its corresponding descending power in the descending coverage information that macro base station and micro-base station report, or only comprise and descending power and individual character side-play amount adopt respectively following formula: Ppico=P
disturb=PMacro+ (PDL1) * Alpha1-(PDL2) * Alpha2, Ppico=P
disturb=PMacro+ (PDL1+Qoffset1) * Alpha1-(PDL2+Qoffset2) * Alpha2 calculates the upload control power of described micro-base station; Wherein, the upload control power that Ppico is micro-base station, P
disturbfor the interference power of described at least one macro base station, PMacro, PDL1, Qoffset1, QHys1 and Alpha1 are respectively up target power, descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described at least one macro base station, and PDL2, Qoffset2, QHys2 and Alpha2 are respectively descending power, individual character side-play amount, layer side-play amount and the path loss penalty coefficient of described micro-base station.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010034012.8A CN102123489B (en) | 2010-01-08 | 2010-01-08 | Method, device and system for adjusting uplink power of micro base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010034012.8A CN102123489B (en) | 2010-01-08 | 2010-01-08 | Method, device and system for adjusting uplink power of micro base station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102123489A CN102123489A (en) | 2011-07-13 |
| CN102123489B true CN102123489B (en) | 2014-09-10 |
Family
ID=44251896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010034012.8A Active CN102123489B (en) | 2010-01-08 | 2010-01-08 | Method, device and system for adjusting uplink power of micro base station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102123489B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013159585A1 (en) * | 2012-04-23 | 2013-10-31 | 华为技术有限公司 | Method, base station, and system for data transmission |
| CN103856953A (en) * | 2012-12-04 | 2014-06-11 | 工业和信息化部电信传输研究所 | Indoor/hot spot enhancement method based on LTE |
| CN104105123A (en) * | 2013-04-02 | 2014-10-15 | 中兴通讯股份有限公司 | Macro base station and low power base station cooperation communication method and system |
| WO2015013968A1 (en) * | 2013-08-01 | 2015-02-05 | 华为技术有限公司 | Adjustment method and relevant device for downlink transmission power |
| CN105636186B (en) * | 2014-11-03 | 2019-07-19 | 中国移动通信集团公司 | A kind of method and apparatus controlling uplink interference noise ratio |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009072355A1 (en) * | 2007-12-03 | 2009-06-11 | Nec Corporation | Wireless communication system, communication control method, wireless station, and recording medium |
| CN101574000A (en) * | 2006-12-15 | 2009-11-04 | 朗讯科技公司 | Controlling uplink power for picocell communications within a macrocell |
| CN101610571A (en) * | 2008-06-18 | 2009-12-23 | 株式会社Ntt都科摩 | Base station and method of mobile communication |
-
2010
- 2010-01-08 CN CN201010034012.8A patent/CN102123489B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101574000A (en) * | 2006-12-15 | 2009-11-04 | 朗讯科技公司 | Controlling uplink power for picocell communications within a macrocell |
| WO2009072355A1 (en) * | 2007-12-03 | 2009-06-11 | Nec Corporation | Wireless communication system, communication control method, wireless station, and recording medium |
| CN101610571A (en) * | 2008-06-18 | 2009-12-23 | 株式会社Ntt都科摩 | Base station and method of mobile communication |
Non-Patent Citations (1)
| Title |
|---|
| Kyocera.Home UE Uplink Interference Mitigation Scheme Based on Pathloss Difference toward LTE Release 9.《TSG-RAN Working Group 4 (Radio) meeting #52bis R4-093617》.2009,第1-6页. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102123489A (en) | 2011-07-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105208641B (en) | The method of the power consumption of base station is reduced in wireless communication system | |
| CN101883416B (en) | Methods and devices for reducing interference of a femtocell in an uplink | |
| EP2907357B1 (en) | Backhaul assisted by user equipment | |
| US9185620B2 (en) | Adaptive UL-DL configurations in a TDD heterogeneous network | |
| CN102474827B (en) | Method for settling downlink power for transmissions from basestation | |
| CN102281571B (en) | Power control method and equipment | |
| US9980218B2 (en) | System and method for user terminal-aware cell switch-off | |
| CN103428869B (en) | The method of Inter-Cell Interference Coordination, base station and communication system | |
| CN102123489B (en) | Method, device and system for adjusting uplink power of micro base station | |
| CN103687030A (en) | Equipment and method for managing wireless transmission resources | |
| CN104219724A (en) | Method and node for interference measurement by cooperation among cells | |
| US9026055B2 (en) | Power control technique to mitigate interference in multi-tier networks | |
| KR20120012711A (en) | Method of communication of macro base station and micro base station for interference control | |
| US20190364514A1 (en) | Communication control method, communication system, and management server | |
| CN103181212A (en) | Wireless communication system, base station, management server, and wireless communication method | |
| CN102300306B (en) | Power control method, device and system | |
| CN111148151B (en) | Method and device for adjusting transmitting power, storage medium and terminal equipment | |
| CN103596254A (en) | Method for base-station self-configuration and base station | |
| Dudnikova et al. | Measurement-based coverage function for green femtocell networks | |
| JP2013106326A (en) | Control device, communication system, control program, and control method | |
| CN102905302A (en) | Method for controlling uplink interference in hybrid network | |
| Ghosh | Interrelationship between energy efficiency and spectral efficiency in cognitive femtocell networks: A survey | |
| CN102215473A (en) | Information interaction method, system and device for hierarchical network system | |
| CN102655649A (en) | Method and device for controlling interference between micro cell and macro cell | |
| Kurda | Heterogeneous networks: Fair power allocation in LTE-A uplink scenarios |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210526 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right |