WO2008019557A1 - Système de communication mobile, procédé d'inhibition des interférences de voisinage et noeud de station de base faisant partie du système - Google Patents
Système de communication mobile, procédé d'inhibition des interférences de voisinage et noeud de station de base faisant partie du système Download PDFInfo
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- WO2008019557A1 WO2008019557A1 PCT/CN2007/001429 CN2007001429W WO2008019557A1 WO 2008019557 A1 WO2008019557 A1 WO 2008019557A1 CN 2007001429 W CN2007001429 W CN 2007001429W WO 2008019557 A1 WO2008019557 A1 WO 2008019557A1
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- uplink
- user equipment
- wireless link
- downlink
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000010295 mobile communication Methods 0.000 title claims abstract description 30
- 230000002401 inhibitory effect Effects 0.000 title abstract 2
- 230000001629 suppression Effects 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 description 34
- 238000005516 engineering process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- 230000011664 signaling Effects 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- GVVPGTZRZFNKDS-JXMROGBWSA-N geranyl diphosphate Chemical compound CC(C)=CCC\C(C)=C\CO[P@](O)(=O)OP(O)(O)=O GVVPGTZRZFNKDS-JXMROGBWSA-N 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
- H04W52/343—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading taking into account loading or congestion level
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/38—TPC being performed in particular situations
- H04W52/40—TPC being performed in particular situations during macro-diversity or soft handoff
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
- H04W36/00695—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink using split of the control plane or user plane
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/06—TPC algorithms
- H04W52/14—Separate analysis of uplink or downlink
- H04W52/146—Uplink power control
Definitions
- the invention relates to a mobile communication system and a neighboring area interference suppression method thereof, and a base station node.
- the application is submitted to the Chinese Patent Office on August 8, 2006, and the application number is 200610110573.5.
- the invention name is "the neighboring area interference suppression method and the base station in the mobile communication system. The priority of the Chinese Patent Application, the entire disclosure of which is incorporated herein by reference.
- the present invention relates to the field of mobile communications, and in particular to a neighboring area interference suppression technique. Specifically, the present invention relates to a mobile communication system and a neighboring area interference suppression method thereof, and a base station node.
- 3 GPP 3rd Generation Partnership Project
- 3G third-generation mobile communication technology
- R99 Release 99
- HSUPA High Speed Uplink Packet Access
- HARQ Hybrid Automatic Retransmission Request
- NodeB base station
- HSUPA In order to achieve high-efficiency transmission and uplink power control of user uplink data, HSUPA newly adds two uplink physical channels and three downlink physical channels, which are respectively enhanced uplink dedicated data transmission channels for carrying user data (Enhanced-DCH Dedicated).
- Physical Data Channel abbreviated as ⁇ -DPDCH”
- Enhanced-DCH Dedicated Physical Control Channel (“E-” for transmitting uplinks that accompany the physical layer signaling and provide accompanying signaling for E-DPDCH demodulation.
- DPCCH Enhanced-DCH Absolute Grant Channel
- E-AGCH Enhanced-DCH Absolute Grant Channel
- RG- Enhanced-DCH Relative Grant Channel
- the E-DCH Hybrid ARQ Indicator Channel abbreviated as ⁇ -HICH is used to ensure that the data transmission of the line is correct.
- the E-AGCH is only present in the serving radio connection cell, and is used to indicate the maximum transmission rate that the user can transmit in the uplink, and the adjusted frequency is relatively low; the E-RGCH can exist in both the serving wireless connection and the non-serving wireless connection cell, and is used. Instructs the user to adjust the uplink transmission rate by a certain step size.
- the adjustment frequency is relatively high, up to once per TTI.
- HSUPA the user knows whether the data is correctly received through the E-HICH. If it is not correct, retransmission will be initiated, otherwise new data will be sent.
- LTE Long Term Evolution
- CN Broadband Code Division Multiple Access
- R C Radio Network Controller
- Core Core
- CN core network
- GW gateway
- the eNodeB is the same as the NodeB in the existing WCDMA network.
- Each NodeB also covers one or more cells, and some areas overlap at the junction of adjacent cells, and the overlapping area can reach about 30%.
- the UE in the handover state simultaneously communicates with multiple NodeBs participating in the handover, that is, the UE can simultaneously receive the transmission signals from the different cell NodeBs, and can also transmit signals to the NodeBs of different cells.
- the UE in the handover state establishes a connection with the NodeB to which the adjacent three cells 101, 102, and 103 belong, and the signals transmitted by the UE in the uplink channel are respectively received by the three NodeBs.
- the RNC (not shown), and the RC combines the three data to improve the quality of the uplink signal.
- the downlink signal is also transmitted to the UE through three NodeBs, and the UE combines the received three signals to improve reception. The effect of signal quality, and the data is not lost when the handover is performed.
- This signal combining technique is called macro diversity, and the switching technique is called handover soft handover.
- the uplink transmit signal sent by the UE to the different cells through the uplink channel has the transmit power of the uplink channel of the UE.
- the transmit power of the uplink channel of the UE is too large, the UE transmits a large amount of interference to the uplink data of the UE.
- the data transmission shield of other UEs in the cell is deteriorated or even dropped.
- the UE in order to prevent the UE in the connected state from performing soft handover in the mobile process, and causing interference to the cell in the soft handover overlapping area, it is necessary to establish a connection between the UE and each cell respectively, and uplink power to the UE. Take control. Specifically, the UE detects the downlink pilot signal of the neighboring cell in the soft handover process, and reports the downlink pilot signal list of the neighboring cell to the RNC, and the RNC receives the information, and then determines whether the UE reports the neighbor.
- the RNC initiates a wireless connection establishment request to the NodeB where the cell is located, and the request is newly added.
- the wireless connection allocates resources.
- the NodeB determines whether there is still available resources. If yes, the RNC and the NodeB respectively allocate resources required for establishing a connection, and establish a connection between the UE and the 15 NodeB to which the cell belongs. If the NodeB currently accesses many UEs and no resources are available, the current request is rejected. In this case, the RNC will refuse to establish a radio link for the UE in the new cell.
- the cell may use the uplink transmit power control (TPC) command or the downlink power adjustment indication, and adopt the inner loop power control and the outer loop power control to connect the UE.
- TPC uplink transmit power control
- the uplink channel transmission power is controlled within a reasonable range, so that the UE at the handover overlapping area does not interfere with the neighboring cell. .
- the above-mentioned prior art adopts the existing uplink transmit power control method, and when the user is in the soft handover state, the interference may occur in the cell where the soft handover overlap region is located, and is not applicable to the LTE. Evolved network.
- the inventor of the present invention found through research that the main reason for this situation is that, in the above-mentioned technology, the NodeB needs to establish a radio connection with the UE, but the neighboring station needs to establish a wireless connection with the UE.
- the uplink demodulation resources of the NodeB to which the cell belongs are limited, and some cells in the handover overlapping area may not be able to establish a wireless connection with the UE.
- the NodeB cannot control the uplink transmit power of the UE, which may cause the UE to transmit uplink. Power is too large
- the cell generates interference, which makes the system performance of the cell worse, and there is a risk of system instability.
- the RNC function in the existing network is split into an eNodeB and a high-level node such as a GW in the evolution process of LTE.
- a high-level node such as a GW in the evolution process of LTE.
- the data transmission of the UE in any handover overlapping area can always be wirelessly connected to the NodeB of one cell 201, and the remaining cells 202 and 203 where the overlapping area is located cannot establish wireless through the prior art.
- the connection controls the uplink transmit power of the UE, so that the interference generated by the UE on the cell cannot be avoided.
- Embodiments of the present invention provide a mobile communication system and a neighboring cell interference suppression method thereof, and a base station node, so that the base station node can improve the accuracy of fast scheduling and system stability. .
- the embodiment of the invention provides a neighboring area interference suppression method in a mobile communication system, which includes the following steps:
- only an uplink channel for estimating the uplink load contribution of the user equipment to the cell and a downlink channel for controlling the transmission power of the user equipment are set; according to the received from the uplink channel
- the signal estimates the contribution of the user equipment to the uplink load of the cell, and controls the transmit power of the user equipment by using the downlink channel according to the estimated result.
- An embodiment of the present invention provides a base station node, including: a first channel establishing module, configured to establish, in an unserved wireless link established for a user equipment, only an uplink channel for estimating a contribution of the user equipment to a cell uplink load, and a downlink channel for controlling the transmit power of the user equipment;
- An estimation module configured to estimate a contribution of the user equipment to a cell uplink load according to a signal received from an uplink channel established by the first channel establishment module;
- a control module configured to control, by the downlink channel, a transmit power of the user equipment according to the estimated result of the estimation module.
- a mobile communication system comprising: a user equipment and a base station node, where: the base station node comprises: a first channel establishment module, configured to establish only for estimating the non-serving wireless link established for the user equipment An uplink channel contributed by the user equipment to the uplink load of the cell and used to control the user equipment W
- a downlink channel for transmitting power
- an estimation module configured to estimate a contribution of the user equipment to a cell uplink load according to a signal received from an uplink channel established by the first channel establishment module
- a control module configured to perform, according to the estimation The result estimated by the module controls the transmission power of the user equipment through the downlink channel.
- the base station node In the non-serving wireless link established by the base station node for the user equipment, the base station node establishes a control plane connection only for the user equipment, and estimates the uplink load contribution of the user equipment to the cell through the established uplink channel, so that the neighboring area The uplink load contribution of the user equipment becomes predictable, and the user equipment transmission power is controlled by the established downlink channel according to the estimated result, thereby effectively suppressing neighboring interference from the overlapping area, and improving the accuracy of fast scheduling of the base station node. Sex and system stability. DRAWINGS
- FIG. 1 is a schematic diagram of a UE connected to a NodeB in an overlapping area in a WCDMA network in the prior art
- FIG. 2 is a schematic diagram of a UE connected to a NodeB in an overlapping area in an LTE-evolved network in the prior art
- FIG. 3 is a schematic diagram of a UE in a overlapping area connected to a NodeB in a neighbor interference suppression method in a mobile communication system according to an embodiment of the present invention
- FIG. 4 is a flow chart showing a method for suppressing neighboring interference in a mobile communication system according to a first embodiment of the present invention
- FIG. 5 is a flow chart showing a method for suppressing neighboring interference in a mobile communication system according to a second embodiment of the present invention.
- Figure 6 is a block diagram showing the structure of a NodeB according to a third embodiment of the present invention.
- Fig. 7 is a block diagram showing the structure of a NodeB according to a fourth embodiment of the present invention.
- the NodeB in the overlapping area of the neighboring cell, the NodeB establishes only the control plane connection in the non-serving wireless link established by the UE, and estimates the UE to the cell through the established connection of the control plane.
- the contribution of the line load, and according to the estimation result, the transmission power of the UE is controlled by the connection of the control plane.
- the UE is in an overlapping area of the first cell 31, the second cell 32, and the third cell 33, and establishes a wireless link with the NodeB to which the three cells belong.
- the first cell 31 is a serving cell of the UE, and the UE establishes a serving radio link with the first NodeB 311 to which the first cell 31 belongs, where the serving radio link includes a complete uplink channel and a downlink channel;
- the second cell 32 and The third cell 33 is a non-serving cell of the UE, and the UE establishes a non-serving wireless link with the second NodeB 322 and the third NodeB 333 to which the second cell 32 and the third cell 33 belong, respectively, and the non-serving wireless link only includes a control plane.
- the second NodeB 322 when establishing a non-serving radio link, the second NodeB 322 sets only an uplink channel for estimating the uplink load contribution of the UE to the cell 2 and controlling the UE transmit power in the radio link.
- the downlink channel, the second NodeB 322 estimates the contribution of the UE to the uplink load of the cell 2 according to the signal received from the uplink channel, and controls the transmit power of the UE through the downlink channel according to the estimated result. Therefore, while reducing the resources required for establishing the wireless link, the neighboring interference from the overlapping area is effectively suppressed, and the accuracy and system stability of the NodeB fast scheduling are improved.
- step 410 when receiving the soft handover request of the UE, the NodeB establishes an unserved wireless link for the UE;
- the non-serving wireless link is a wireless link including an Enhanced Dedicated Channel ("E-DCH").
- E-DCH Enhanced Dedicated Channel
- the NodeB only sets an uplink channel for estimating the UE's contribution to the uplink load of the UE in the radio link, such as the DPCCH and the uplink E-DPCCH; the downlink channel for controlling the transmit power of the UE, such as the downlink E-RGCH, And a downlink dedicated physical channel (F-DPCH) or a downlink dedicated physical channel (DPDCH).
- the downlink channel used by the non-serving cell to control the transmit power of the UE is the downlink E-RGCH.
- the F-DPCH and DPDCH can also be selected based on the actual capabilities of the NodeB.
- step O the NodeB determines whether the currently used resource exceeds the preset threshold. If not, the process proceeds to step 430. Otherwise, if the preset threshold is exceeded, the process proceeds directly to step 440. In step 430, the NodeB is in the process. Setting a complete control channel and data channel in the wireless link;
- the NodeB sets a complete control channel and a data channel in the radio link, including each control channel set in step 410 and an E-DPDCH for receiving uplink data, so as to fully utilize the demodulation resources of the uplink high-speed packet access, and prevent The waste of resources, the specific setting method can refer to the setting of the relevant channel in the E-DCH in the prior art, and details are not described herein again;
- the NodeB estimates the contribution of the UE to the uplink load of the cell according to the received signal from the DPCCH and the uplink E-DPCCH. Specifically, the NodeB first estimates the signal-to-noise ratio of the uplink DPCCH according to the pilot information of the uplink DPCCH.
- DPCCH the specific implementation method is the same as the prior art. Then, according to the uplink E-DPDCH data transmission format signaling information indicated in the current uplink E-DPCCH, and the reference transmission format information of the network configuration, the power control gain factor ⁇ of the uplink E-DPDCH of the UE relative to the uplink DPCCH is obtained , and the specific implementation method is implemented. Reference can be made to the prior art.
- the NodeB obtains the DPCCH E-DPDCH and the signal-to-noise ratio of the E-DPCCH channel calculated according to the above 57 SIR E _ DPDCH
- the odeB needs to further calculate the signal-to-noise ratio of the E-DPCCH calculated according to the previous calculation 577? £ _ ⁇ ⁇ : / ⁇ UE uplink E-DPDCH relative uplink DPCCH
- PE ⁇ DPCCH combined with the previously calculated signal-to-noise ratio of each channel COT SIR E _ D Sa, SIR E _ DPCCH , reference public jL- - + - ⁇ - ⁇ " SIR DPCCH SIR DPDCH + SIR E _ DPCCH + SIR E _ DPDCH
- step 450 the NodeB controls the transmit power of the UE by using the downlink E-RGCH according to the estimation result of the UE's contribution to the uplink load of the UE.
- the downlink E-RGCH sends a Relative Grant ("RG") command to instruct the UE to reduce the uplink data transmission rate and reduce the uplink.
- RG Relative Grant
- the data transmission interferes with the cell, so that the transmission power of other UEs in the cell does not need to be improved, the stability of the system and the stability of the user data transmission rate are ensured, and the system capacity is improved; otherwise, the NodeB does not need to send the downlink E-RGCH. Instructions.
- the established non-serving radio link may not include a channel for transmitting data, so when the UE performs soft handover, It is required to determine whether the radio link between the UE and the target cell only includes an uplink channel for estimating the UE's uplink load contribution to the UE and a downlink channel for controlling the UE transmit power, and if so, the radio link is required.
- a related channel for transmitting data is added to the path, as in the above-mentioned E-DPDCH, and then soft handover is performed to ensure that the UE can normally communicate after switching to the target cell.
- the neighboring area interference suppression method in the mobile communication system of the second embodiment of the present invention is substantially the same as that of the first embodiment.
- the first embodiment is mainly applied to the network using the uplink macro diversity technology, and the main application of this embodiment is applicable.
- the network that cancels the uplink macro diversity technology is mainly applied to the network using the uplink macro diversity technology.
- the LTE-evolved network cancels the uplink macro-diversity in the system architecture, that is, the UE in the overlapping area in the network can only establish a connection with the data transmission plane of the serving cell.
- the present embodiment passes the non-serving cell.
- the associated NodeB also referred to as an eNodeB
- the UE only establish a control plane connection, so that the NodeB can control the transmit power of the UE in the adjacent area in the overlapping area, thereby preventing the UE in the adjacent area in the overlapping area from generating the local area. interference.
- step 510 the network side determines, according to the neighboring area measurement report of the UE, a NodeB that needs to establish a non-serving wireless link for the UE, and notifies the NodeB to establish a non-serving wireless link for the UE; and then proceeds to step 520, where the NodeB is The UE establishes a non-serving wireless link, and only an uplink channel for estimating the UE's contribution to the uplink load of the UE and a downlink channel for controlling the transmit power of the UE are set in the radio link;
- the NodeB estimates the contribution of the UE to the uplink load of the cell according to the signal received from the uplink channel;
- the non-serving NodeB and the UE do not need to establish an associated channel for data transmission, so even if the uplink macro diversity is cancelled in the system architecture, the non-serving NodeB can still be based on the control plane established with the UE.
- the connection accurately estimates the interference that the UE in the neighboring area brings to the local cell in the overlapping area. And because only the control plane connection is established between the non-serving NodeB and the UE, the NodeB and the Iub are not occupied. W
- the NodeB controls the transmit power of the UE through the downlink channel according to the estimated result.
- the NodeB does not need to increase the transmit power of other UEs in the cell, which ensures the stability of the system and the smoothness of the user data transmission rate, and improves the system capacity. .
- FIG. 6 it is a structural block diagram of a NodeB according to a third embodiment of the present invention.
- the third embodiment of the present invention includes a first channel establishing module 610, an estimating module 620, a control module 630, and a first judging module 640 and a second channel establishing module 650, in addition to the basic modules in the prior art.
- the first channel establishing module 610 is configured to establish a non-serving wireless link for the UE, and set only an uplink channel for estimating the uplink load contribution of the user equipment to the cell, and used to control the established non-serving wireless link.
- a downlink channel for transmitting power of the user equipment;
- the estimating module 620 is configured to estimate, according to the signal received by the uplink channel established by the first channel establishing module 610, the contribution of the UE to the uplink load of the cell;
- the control module 630 is configured to control, by using the downlink channel, the transmit power of the UE according to the estimated result of the estimation module 620;
- the first determining module 640 is configured to determine, in the UE handover, whether the radio link between the UE and the target cell includes only an uplink channel for estimating the UE uplink load contribution to the cell, and a downlink channel for controlling the UE transmit power. ;
- the second channel establishing module 650 is configured to accept an indication from the first determining module 640 to add an associated channel for transmitting data in the wireless link.
- the radio link is a radio link including an enhanced dedicated channel, where the uplink channel includes an uplink dedicated physical control channel and an uplink enhanced dedicated physical control channel; the downlink channel includes a downlink relative grant channel, and a downlink part dedicated physical channel. Or downlink dedicated physical channel.
- the NodeB when receiving the handover request from the UE that switches the overlapping area, notifies the first channel establishing module 610 to establish a non-serving wireless link for the UE, and the first channel establishing module 610 only establishes for the UE Estimating the uplink channel that the UE contributes to the uplink load of the cell and for controlling the W
- the downlink channel on which the UE transmits power The estimation module 620 then estimates the contribution of the UE to the uplink load of the cell according to the signal received from the uplink channel established by the first channel setup module 610, and notifies the control module 630 of the result of the estimation, which is estimated by the control module 630 according to the estimation module 620.
- the result is that the UE's transmit power is controlled by the downlink channel, thereby effectively suppressing neighboring interference from the overlapping area, improving the accuracy of the NodeB fast scheduling, and improving the transmission power of other UEs in the cell, thereby ensuring system stability and The smoothness of the user data transmission rate.
- the established non-serving radio link does not include a channel for transmitting data, so when the UE performs soft handover, it needs to pass the first
- the determining module 640 determines whether the radio link between the UE and the target cell includes only an uplink channel for estimating the UE's uplink load contribution to the cell and a downlink channel for controlling the UE transmit power, and if yes, indicating the second
- the channel establishment module 650 adds an associated channel for transmitting data in the wireless link to ensure that the UE can communicate normally after switching to the target cell.
- FIG. 7 it is a structural block diagram of a NodeB according to a fourth embodiment of the present invention.
- the fourth embodiment of the present invention includes a second judging module 660 and a third channel establishing module 670 in addition to the structure of the third embodiment described above.
- the second determining module 660 is configured to determine whether the currently used resource of the UE exceeds a preset threshold.
- the third channel establishing module 670 is configured to establish, when the second determining module 660 determines that the currently used resource of the UE does not exceed the preset threshold.
- the complete control channel and data channel are set in the non-serving wireless link.
- the base station node When the base station node establishes a non-serving wireless link for the user equipment, the base station node establishes a control plane connection only for the user equipment, and estimates the uplink load contribution of the user equipment to the cell through the established uplink channel, so that the neighboring area The uplink load contribution of the user equipment becomes predictable, and the user equipment transmission power is controlled by the established downlink channel according to the estimated result, thereby effectively suppressing neighboring interference from the overlapping area, and improving the accuracy of fast scheduling of the base station node. Sex and system stability.
- the non-serving wireless link becomes a serving wireless link at the time of handover, a channel for carrying data is added to the wireless link to ensure that the user equipment can be protected after switching to the new service wireless link. Hold normal communication.
- the base station node when the base station node receives the soft handoff request from the user equipment of the neighboring cell, a non-serving wireless link is established for the user equipment, which only includes the connection of the control plane. Therefore, even if the E-DPDCH demodulation resource is exhausted, the established control plane connection can be used to estimate the uplink load size of the user equipment in the soft handover overlapping area. If the uplink load of the user equipment in the soft handover overlapping area is too large, the downlink control channel can still be used to instruct the user equipment to reduce the uplink data transmission rate without increasing the transmission power of the user equipment that has established the wireless link, thereby ensuring the system. Stability and smoothness of user data transfer rates increase system capacity.
- the base station node if it establishes a non-serving wireless link for the user equipment, it can judge according to the usage of the E-DPDCH demodulation resource. If the current remaining E-DPDCH demodulation resources are small, only the control channel is established. If the current E-DPDCH demodulation resources are large, the E-DPDCH for receiving the uplink data may be established for the user equipment, so as to fully utilize the demodulation resources of the uplink high-speed packet access, thereby preventing waste of resources.
- the non-serving base station node can establish a control plane connection with the user equipment according to the notification of the network side, and accurately estimate The user equipment in the adjacent area in the overlapping area interferes with the local cell, and can intervene and adjust the uplink transmit power of the user equipment through the downlink control channel to achieve the purpose of interference control.
- the resources of the user plane such as the base station node and the Iub transmission are not occupied, and the system performance and the stability of the system are improved with less hardware resource consumption.
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Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200780000368.6A CN101317343B (zh) | 2006-08-08 | 2007-04-28 | 移动通信系统及其中的邻区干扰抑制方法、及基站节点 |
JP2009523135A JP4955058B2 (ja) | 2006-08-08 | 2007-04-28 | 移動通信システムと、システムにおける近隣の干渉抑制方法および基地局 |
AT07721002T ATE516633T1 (de) | 2006-08-08 | 2007-04-28 | Mobilkommunikationssystem, verfahren zur unterdrückung von störungen aus der nachbarschaft und basisstationsknoten in dem system |
EP07721002A EP2053758B1 (en) | 2006-08-08 | 2007-04-28 | A mobile communication system, interference of neighborhood inhibiting method and base station node in the system |
US12/367,316 US20090143016A1 (en) | 2006-08-08 | 2009-02-06 | Mobile communication system, interference of neighborhood suppression method and base station in the system |
US13/270,919 US20120028644A1 (en) | 2006-08-08 | 2011-10-11 | Mobile communication system, interference of neighborhood suppression method and base station in the system |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN200610110573.5 | 2006-08-08 | ||
CNB2006101105735A CN100428830C (zh) | 2006-08-08 | 2006-08-08 | 移动通信系统中邻区干扰抑制方法及基站节点 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US12/367,316 Continuation US20090143016A1 (en) | 2006-08-08 | 2009-02-06 | Mobile communication system, interference of neighborhood suppression method and base station in the system |
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WO2008019557A1 true WO2008019557A1 (fr) | 2008-02-21 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/CN2007/001429 WO2008019557A1 (fr) | 2006-08-08 | 2007-04-28 | Système de communication mobile, procédé d'inhibition des interférences de voisinage et noeud de station de base faisant partie du système |
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US (2) | US20090143016A1 (zh) |
EP (1) | EP2053758B1 (zh) |
JP (1) | JP4955058B2 (zh) |
CN (2) | CN100428830C (zh) |
AT (1) | ATE516633T1 (zh) |
ES (1) | ES2366817T3 (zh) |
WO (1) | WO2008019557A1 (zh) |
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Also Published As
Publication number | Publication date |
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US20090143016A1 (en) | 2009-06-04 |
JP2010500793A (ja) | 2010-01-07 |
EP2053758A1 (en) | 2009-04-29 |
JP4955058B2 (ja) | 2012-06-20 |
US20120028644A1 (en) | 2012-02-02 |
CN100428830C (zh) | 2008-10-22 |
ATE516633T1 (de) | 2011-07-15 |
EP2053758B1 (en) | 2011-07-13 |
CN1905730A (zh) | 2007-01-31 |
EP2053758A4 (en) | 2010-01-06 |
CN101317343B (zh) | 2012-06-27 |
ES2366817T3 (es) | 2011-10-25 |
CN101317343A (zh) | 2008-12-03 |
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