CN103052087A - Interference detection method of idle-state user equipment and user equipment - Google Patents
Interference detection method of idle-state user equipment and user equipment Download PDFInfo
- Publication number
- CN103052087A CN103052087A CN2011103063314A CN201110306331A CN103052087A CN 103052087 A CN103052087 A CN 103052087A CN 2011103063314 A CN2011103063314 A CN 2011103063314A CN 201110306331 A CN201110306331 A CN 201110306331A CN 103052087 A CN103052087 A CN 103052087A
- Authority
- CN
- China
- Prior art keywords
- rrm
- rsrp
- threshold value
- measures
- interfered
- 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.)
- Granted
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The invention provides an interference detection method of idle-state user equipment and the user equipment. The interference detection method of the idle-state user equipment (UE) comprises the following steps that the UE receives radio resource management (RRM) measurement threshold information sent by a base station; the UE carries out RRM measurement on a resident serving cell of the UE or an adjacent cell of the serving cell to obtain an RRM measurement result; and the UE compares the RRM measurement result with the RRM measurement threshold information and determines whether the UE is interfered or not according to a comparing result. According to the interference detection method of the idle-state user equipment and the user equipment disclosed by the invention, the idle-state UE can detect whether the UE is interfered or not and is used for judging whether RRM measurement is carried out by using a measurement restraining sub-frame set or not or judging whether a specific physical random access channel is selected to send a random access leader sequence or not, so that the power consumption of the UE is saved and the random access successful rate of the interfered UE is improved.
Description
Technical field
The present invention relates to wireless communication technology field, relate in particular to a kind of interference detection method and subscriber equipment of Idle state subscriber equipment.
Background technology
Heterogeneous network (HetNet, Heterogeneous Network) refers to that low power nodes is placed in the macro base station coverage area by cloth, forms the heterogeneous system with the different node types that cover.Low power nodes (Low Power Node, LPN) comprise microcell base station (Micro), micromicro honeycomb base station (Pico), long distance wireless dateline (Remote Radio Head, RRH), relay station (Relay) and millimicro cellular basestation (Femto is often referred to Home eNodeB) etc.
A subject matter of considering in the heterogeneous network is exactly with each the internodal interference problem under covering, especially because the macro base station transmitting power is much larger than LPN, cause macro base station to the interference of the descending reception of boundary user among the LPN, and the high-power terminal in macro base station edge is to the interference of LPN near.In addition, be that Home eNodeB also can affect greatly near macro base station user under Closed User Group (Closed Subscriber Group, CSG) the pattern scene at Home eNodeB.Thereby introduce the Inter-Cell Interference Coordination (Enhanced Inter Cell Interference Coordination, eICIC) that strengthens and solve the problems referred to above.
EICIC mainly pays close attention to two scene: Macro-Pico and Macro-femto.The deployment of Pico residential quarter is mainly used in shunting the load of Macro residential quarter.By adopting cell edge expansion (CRE) technology, the base station connects reconfiguration message is used for the measurement event report to UE allocating cell particular offset (cell-specific offset) triggering by radio resource control (RRC), so that connected state UE branches to the LPN node by handoff procedure, to reach higher throughput of system.For Pico residential quarter (particularly cell edge) user, the interference of considering in this scene refers to that Macro disturbs the pico edge customer.
The introducing master of femto is in order to solve indoor covering, the load of shunting indoor user.The Home eNodeB (HeNB) that the main interference problem that exists is the CSG pattern has larger interference, the interference of considering in this scene to refer to that femto disturbs the Macro edge UE that falls into its coverage to the Macro UE in its coverage (not being the Member Users of this femto).
Third generation mobile partnership projects (3GPP) R10 mainly considers based on the eICIC scheme under non-carrier aggregation (non-CA-based) scene, be that control channel and Traffic Channel can be total to transmission, can come by frequency division/time grading mode the control channel of two kinds of nodes of orthogonalization this moment, mainly is divided into following several: time domain mode eICIC (the pseudo-sub-frame of uplink (TDD fake UL subframe) of collocation approximation blank subframe (ABS) subframe/configuration multimedia broadcast multi-broadcasting business (MBSFN) subframe/time division duplex/time domain skew (time shifting)), frequency domain mode eICIC, power control and spatial processing.Wherein, the scheme passed through discussion of 3GPP R10 is collocation approximation blank subframe (ABS) scheme.The residential quarter (Aggressor cell) of produce disturbing only sends CRS and in order to guarantee the needed synchronizing signal of backwards compatibility in the ABS subframe, a small amount of broadcast and beep-page message, thus interference to the residential quarter (victim cell) that is interfered avoided.
In the macro-pico scene, Macro cell is aggressor cell, and pico edge (edge) UE is victim UE, so macro cell arranges ABS, macro cell can only dispatch UE in non-ABS, and the R10UE that pico is disturbed by macro in the ABS scheduling.Owing to existing X2 to connect between macro base station (MeNB) and pico base station (PeNB), be PeNB configuration macro ' s ABS by MeNB by load indication (Load indication) message therefore.In the macro-femto scene, femto cell is aggressor cell, and Macro edge UE is victim UE, so femto cell arranges ABS, femtocell can only dispatch UE in non-ABS, and the R10UE that macro is disturbed by femto in the ABS scheduling.Owing to not existing X2 to connect between MeNB and the HeNB, be MeNB configuration femto ' s ABS by OAM therefore.
Disturbed R10UE under the connected state is owing to only can be received signal by base station scheduling on ABS, therefore can limit R10UE only the part subframe carry out Serving cell RRM (RRM)/Radio Link Management (RLM)/channel condition information (CSI) is measured or the RRM of adjacent area measures, this measures constraint subframe set (measurement restriction pattern) is the subset of ABS, sends to UE by the base station by the proprietary signaling of eating dishes without rice or wine.
Above-mentioned eICIC scheme is only for connected state UE, but do not solve the problem of inter-cell interference of Idle state (IDLE) attitude UE.Under the macro-pico scene, reside in the pico residential quarter and be positioned at the UE of CRE scope of pico owing to being subject to the strong jamming of macro, the Reference Signal Received Quality (RSRQ) that may measure Serving cell in the process of cell reselection does not satisfy the residential quarter and selects the S criterion, and can not continue to reside in pico.Under the macro-femto scene, reside in the macro residential quarter and be positioned near the UE of femto owing to being subject to the strong jamming of femto, the RSRQ that may measure Serving cell in the process of cell reselection does not satisfy the residential quarter and selects the S criterion, and can not continue to reside in macro, but because the femto residential quarter is the CSG residential quarter that UE can not access, may cause UE can not find can be resident the residential quarter.
Summary of the invention
The embodiment of the invention provides a kind of interference detection method and subscriber equipment of Idle state subscriber equipment, detects the problem that self whether is interfered to solve Idle state UE.
The embodiment of the invention provides a kind of interference detection method of Idle state subscriber equipment, and the method comprises:
UE receives RRM (RRM) the measurement threshold information that the base station sends;
Described UE carries out RRM to the neighbor cell of the resident Serving cell of described UE or described Serving cell and measures, and obtains the RRM measurement result;
Described UE compares described RRM measurement result and described RRM measurement threshold information, determines according to comparative result whether oneself is interfered.
Preferably, the RRM measurement threshold information of described UE reception base station transmission comprises:
Described UE receives the described RRM that carries in the described system message by the system message that receives the base station transmission and measures threshold information.
Preferably, described RRM measurement threshold information comprises:
Reference Signal Received Quality (RSRQ) difference threshold value;
Reference Signal Received Power (RSRP) threshold value and RSRQ threshold value;
The RSRP threshold value; Perhaps
The RSRP threshold value reaches Physical Cell Identifier (PCI) tabulation of the residential quarter related with described RSRP threshold value.
Preferably, described UE carries out RRM to the neighbor cell of the resident Serving cell of described UE or described Serving cell and measures, and comprising:
If it is RSRQ difference threshold value that the RRM that described UE receives measures threshold information, then described UE measures the RSRQ value of described Serving cell in approximate blank subframe (ABS) and non-ABS at each discontinuous reception (DRX) respectively in the cycle, and then obtains the RSRQ difference of ABS and non-ABS;
If it is RSRP threshold value and RSRQ threshold value that the RRM that described UE receives measures threshold information, then described UE in each DRX cycle any subframe or in non-ABS, measure RSRP value and the RSRQ value of described Serving cell;
Under macro base station (macro)-micromicro honeycomb base station (pico) scene, if it is the RSRP threshold value that the RRM that described UE receives by system message measures threshold information, then described UE in each DRX cycle any subframe or in ABS, measure the RSRP value of described Serving cell;
Under macro-Home eNodeB (femto) scene, be the RSRP threshold value if the RRM that described UE receives by system message measures threshold information, then described UE obtains the RSRP value of described neighbor cell in the measuring process of cell reselection;
If it is the PCI tabulation that the RSRP threshold value reaches the residential quarter related with described RSRP threshold value that the RRM that described UE receives by system message measures threshold information, then described UE obtains the RSRP value of the PCI respective cell in the described PCI tabulation in the measuring process of cell reselection.
Preferably, described UE compares described RRM measurement result and described RRM threshold information, determines that according to comparative result whether oneself is interfered, and comprising:
If it is RSRQ difference threshold value that the RRM that described UE receives measures threshold information, then the described RSRQ difference that measures and described RSRQ difference threshold value are carried out RRM relatively, if described RSRQ difference is greater than described RSRQ difference threshold value, then described UE determines that oneself is interfered; Otherwise described UE determines that oneself is not interfered;
If it is RSRP threshold value and RSRQ threshold value that the RRM that described UE receives measures threshold information, then the described RSRP value that measures and RSRQ value are carried out RRM relatively with described RSRP threshold value and described RSRQ threshold value respectively, if described RSRP value is greater than described RSRP threshold value, and described RSRQ value is less than described RSRQ threshold value, and then described UE determines that oneself is interfered; Otherwise described UE determines that oneself is not interfered;
Under the macro-pico scene, if it is the RSRP threshold value that the RRM that described UE receives by system message measures threshold information, then the described RSRP value that measures and described RSRP threshold value are carried out RRM relatively, if described RSRP value is less than described RSRP threshold value, then described UE determines that oneself is interfered; Otherwise described UE determines that oneself is not interfered;
Under the macro-femto scene, if it is the RSRP threshold value that the RRM that described UE receives by system message measures threshold information, then the described RSRP value that measures and described RSRP threshold value are carried out RRM relatively, if described RSRP value is greater than described RSRP threshold value, then described UE determines that oneself is interfered; Otherwise described UE determines that oneself is not interfered;
If it is the PCI tabulation that the RSRP threshold value reaches the residential quarter related with described RSRP threshold value that the RRM that described UE receives by system message measures threshold information, then the described RSRP value that measures and described RSRP threshold value are carried out RRM relatively; If described RSRP value is greater than described RSRP threshold value, then described UE determines that oneself is interfered; Otherwise described UE determines that oneself is not interfered.
Preferably, after described UE determined oneself to be interfered, described method also comprised:
Described UE uses the set of measurement constraint subframe to carry out RRM and measures, and perhaps chooses at random Physical Random Access Channel in specific Physical Random Access Channel is gathered and sends random access leader sequence; Perhaps
After described UE determined oneself not to be interfered, described method also comprised:
Described UE stops using the set of measurement constraint subframe to carry out RRM and measures, and perhaps chooses at random Physical Random Access Channel and sends random access leader sequence.
Preferably, the Physical Random Access Channel that can use of the UE that is interfered that broadcasts in system message for described base station of described specific Physical Random Access Channel set is gathered.
Preferably, the RRM measurement threshold information of described base station transmission is:
Described base station is that the RRM of the neighbor cell configuration of described Serving cell or described Serving cell measures threshold information; Perhaps
The network management network element is the RRM measurement threshold information of the neighbor cell configuration of described Serving cell or described Serving cell by network management (OAM) mode.
The embodiment of the invention also provides a kind of subscriber equipment (UE), and this UE comprises:
Receiver module is used for receiving RRM (RRM) the measurement threshold information that the base station sends;
Measurement module is used for neighbor cell to the resident Serving cell of described UE or described Serving cell and carries out RRM and measure, and obtains the RRM measurement result;
Determination module is used for the described RRM measurement result of described measurement module acquisition and the described RRM measurement threshold information of described receiver module reception are compared, and determines according to comparative result whether oneself is interfered.
Preferably, described UE also comprises:
Access module is used for choosing at random Physical Random Access Channel and to send random access leader sequence in specific Physical Random Access Channel set after described determination module determines oneself to be interfered; After perhaps described determination module is determined oneself not to be interfered, choose at random Physical Random Access Channel and send random access leader sequence;
Described measurement module, after also determining oneself to be interfered for described determination module, use is measured the set of constraint subframe and is carried out the RRM measurement, after perhaps described determination module is determined oneself not to be interfered, stops using the set of measurement constraint subframe to carry out RRM and measures.
The interference detection method of above-mentioned Idle state subscriber equipment and subscriber equipment, so that can detecting oneself, Idle state UE whether is interfered, in order to judge whether that adopting the set of measurement constraint subframe to carry out RRM measures, or judge whether to choose specific Physical Random Access Channel and send random access leader sequence, save the UE power consumption, and improve the success rate that is disturbed the random access of UE.
Description of drawings
Fig. 1 is hetnet typical deployed scene schematic diagram of the present invention;
Fig. 2 is macro-pico scene schematic diagram of the present invention;
Fig. 3 is macro-femto scene schematic diagram of the present invention;
Fig. 4 is the flow chart of Idle state UE interference detection method embodiment of the present invention;
Fig. 5 is the structural representation of terminal embodiment of the present invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, hereinafter in connection with accompanying drawing embodiments of the invention are elaborated.Need to prove, in the situation that do not conflict, the embodiment among the application and the feature among the embodiment be combination in any mutually.
Fig. 1 has described hetnet typical deployed scene, and small-power node (LPN) is deployed in the coverage of macro base station (macro eNB), and wherein LPN has following a few class: via node (relay node), pico, femto.Wherein can pass through the mutual signaling of X2 interface between macro and the pico eNB.
As shown in Figure 2, be macro-pico scene schematic diagram of the present invention, wherein, pico is deployed in the macro cell coverage area and covers as focus, to share the macro load.Wherein, the PUE1 that resides in pico is positioned at the RE scope of pico, is subject to the strong jamming of macro; The PUE2 that resides in pico is positioned at the central area of pico, is not subject to the interference of macro.
As shown in Figure 3, be macro-femto scene schematic diagram of the present invention, femto is deployed in the macro cell coverage area.The MUE1 that wherein resides in macro be positioned at femto near, be subject to the strong jamming of femto; The MUE2 that resides in macro is positioned at the central area of macro, is not subject to the interference of femto.
As shown in Figure 4, be the flow chart of Idle state UE interference detection method embodiment of the present invention, the method comprises:
This RRM measures threshold information and comprises at least one of following:
1) RSRQ difference threshold value;
2) RSRP threshold value and RSRQ threshold value;
3) RSRP threshold value;
4) Physical Cell Identifier (PCI) tabulation of the residential quarter of RSRP threshold value and association thereof;
The base station can be passed through system message (for example, system information block (SIB) 3 or SIB4) and RRM is measured threshold information send to UE;
Before the base station sent to UE with this RRM measurement threshold information, the base station was that cell configuration RRM measures threshold information; Perhaps, the network management network element is that cell configuration RRM measures threshold information by the OAM mode; Perhaps, other network element is that cell configuration RRM measures threshold information;
1) if it is RSRQ difference threshold value that the RRM that UE receives measures threshold information, then UE measures the RSRQ value of Serving cell at ABS and non-ABS respectively in each DRX cycle, and then obtains the RSRQ difference of ABS and non-ABS;
2) comprise RSRP threshold value and RSRQ threshold value if the RRM that UE receives measures threshold information, then UE in each DRX cycle any subframe or only in non-ABS, measure RSRP and the RSRQ value of Serving cell;
3) under the macro-pico scene, be the RSRP threshold value if the RRM that UE receives in system message (such as SIB3) measures threshold information, then UE in each DRX cycle any subframe or only in ABS, measure the RSRP value of Serving cell;
4) under the macro-femto scene, be the RSRP threshold value if the RRM that UE receives in system message (such as SIB4) measures threshold information, then UE obtains the RSRP value of neighbor cell in the measuring process of cell reselection;
5) under the macro-femto scene, if the RRM that UE receives in system message (such as SIB4) measures the PCI tabulation that threshold information comprises the residential quarter of RSRP threshold value and association thereof, then UE obtains the RSRP value of the PCI respective cell in the described PCI tabulation in the measuring process of cell reselection.
Wherein, the measurement constraint subframe set that UE obtains in the time of can preserving connected state is also used it for the IDLE attitude, perhaps obtains to measure the set of constraint subframe by the system message that receives Serving cell or neighbor cell.
1) if it is RSRQ difference threshold value that the RRM that UE receives measures threshold information, the RSRQ difference threshold value of the RSRQ difference that then measures and reception is carried out RRM relatively.If the RSRQ difference that measures is greater than the RSRQ difference threshold value that receives, then UE thinks the interference that oneself has been subject to aggressor cell; Otherwise UE thinks that oneself is not subject to the interference of aggressor cell.
2) comprise RSRP threshold value and RSRQ threshold value if the RRM that UE receives measures threshold information, then the RSRP and the RSRQ value that measure are carried out RRM relatively with the RSRP that receives and RSRQ threshold value.If the RSRP value that measures is greater than the RSRP threshold value that receives, and the RSRQ value that measures is less than the RSRQ threshold value of reception, and then UE thinks the interference that oneself has been subject to aggressor cell; Otherwise UE thinks that oneself is not subject to the interference of aggressor cell.
3) if it is the RSRP threshold value that the RRM that UE receives at SIB3 measures threshold information, then the RSRP value that measures and the RSRP threshold value that receives are carried out RRM relatively.If the RSRP value that measures is less than receiving the RSRP threshold value, then UE thinks the interference that oneself has been subject to aggressor cell; Otherwise UE thinks that oneself is not subject to the interference of aggressor cell.
4) if it is the RSRP threshold value that the RRM that UE receives at SIB4 measures threshold information, then the described RSRP value that measures and described RSRP threshold value are carried out RRM relatively.If described RSRP value is greater than described RSRP threshold value, then UE thinks the interference that oneself has been subject to aggressor cell; Otherwise UE thinks that oneself is not subject to the interference of aggressor cell.
5) if the RRM that UE receives at SIB4 measures the PCI tabulation that threshold information comprises the residential quarter of RSRP threshold value and association thereof, then the RSRP value that measures is carried out RRM relatively with the RSRP threshold value of this cell association that receives.If the RSRP value that measures is greater than the RSRP threshold value that receives, then UE thinks the interference that oneself has been subject to aggressor cell; Otherwise UE thinks that oneself is not subject to the interference of aggressor cell.
If reside in victim cell but be not subject to the UE that aggressor cell disturbs and only in measuring the set of constraint subframe, Serving cell is carried out the RRM measurement, then will cause within a predetermined period of time measurable number of sub frames minimizing of this UE, UE then needs additionally to increase wake-up time (wake time) and measures, and then increases the power consumption of terminal equipment.Therefore, whether IDLE UE need to detect self and be disturbed by aggressor cell, to judge whether that using the set of measurement constraint subframe to carry out RRM measures constraint.
In addition, IDLE UE initiating random access procedure, sending accidental access response (RAR) by the base station at ABS can be so that successfully received by the RAR of the victim UE that aggressor cell disturbs, and then improves victim UE and access at random success rate.But the base station does not also know to initiate whether the random IDLEUE that accesses is the victim UE that is interfered, if the RAR of all UE sends at ABS, then can cause random access delay and the RAR capacity problem of non-victim UE.Therefore, the base station needs to identify whether the UE that initiates random access is the victim UE that disturbed by aggressor cell.The victim UE that disturbed by aggressor cell can pass through to send random access leader sequence (preamble) at specific Physical Random Access Channel (PRACH), or chooses specific preamble take indication base station oneself as victim UE.Therefore, whether IDLE UE need to detect self and be disturbed by aggressor cell, to judge whether that choosing specific Physical Random Access Channel sends random access leader sequence.
This step is optional step, if UE thinks the interference that oneself has been subject to aggressor cell according to the RRM comparative result, then UE begins to enable and measures the set of constraint subframe and carry out RRM and measure; Otherwise UE continues not retrain the RRM measurement or stops using the set of measurement constraint subframe to carry out RRM and measure.
If think the interference that oneself has been subject to aggressor cell according to above-mentioned comparative result UE, then in specific Physical Random Access Channel set, choose at random Physical Random Access Channel and send random access leader sequence, it can be identified in the base station is the victim UE that is interfered, then send the accidental access response RAR of this UE at ABS, to guarantee the successful reception of RAR.The existing result that UE can judge according to the last time, or judge whether oneself is interfered before each random access.The base station may be broadcasted in system message and is subject to the Physical Random Access Channel set that UE that aggressor cell disturbs can use, and also is specific Physical Random Access Channel set.
Embodiment one
The present embodiment describe under macro-pico scene shown in Figure 2, adopt the situation of the decision method of RSRQ difference, PUE1 and PUE2 receive the RSRQ difference threshold value that pico sends at system message SIB3 among this embodiment, and in each DRX cycle, measure respectively the RSRQ value of Serving cell at ABS and non-ABS, both are subtracted each other the RSRQ difference that obtains ABS and non-ABS.Wherein, the measurement constraint subframe set that the PUE1 of IDLE attitude and PUE2 obtain in the time of can be according to connected state, perhaps obtain to measure the set of constraint subframe by the system message that receives pico, then in ABS and non-ABS, measure respectively the RSRQ value of ABS of Serving cell and the RSRQ value of non-ABS.
The PUE1 that is positioned at the RE zone of pico is subject to the strong jamming of macro, the RSRQ difference of the ABS that it measures and non-ABS is greater than the RSRQ difference threshold value that receives, judge that then oneself is victim UE, and beginning or continue to use measure the set of constraint subframe and carry out RRM and measure constraint; If the PUE1 initiating random access procedure can or re-start according to the measurement result of last time to measure and judge that it is victim UE, then in specific Physical Random Access Channel, choosing Physical Random Access Channel and sending preamble.
The PUE2 that is positioned at the pico central area is not subject to the interference of macro, the RSRQ difference of the ABS that it measures and non-ABS is less than the RSRQ difference threshold value that receives, then judge it oneself is not victim UE, and continue not retrain RRM and measure or stop using and measure the set of constraint subframe and carry out RRM and measure constraint.If the PUE2 initiating random access procedure can or re-start according to the measurement result of last time to measure and judge that it is non-victim UE, then choose at random Physical Random Access Channel and send preamble.
Embodiment two
The present embodiment describe under macro-pico scene shown in Figure 2, adopt the situation of the decision method of RSRP and RSRQ value, PUE1 and PUE2 receive RSRP and the RSRQ threshold value that pico sends at system message SIB3 among this embodiment, and any subframe in each DRX cycle or only measure RSRP and the RSRQ value of Serving cell in non-ABS.
The PUE1 that is positioned at the RE zone of pico is subject to the strong jamming of macro, the RSRP value that it measures is greater than the RSRP threshold value that receives, and the RSRQ value that measures is less than the RSRQ threshold value that receives, judge that then oneself is victim UE, and beginning or continue to use measure the set of constraint subframe and carry out RRM and measure constraint; If the PUE1 initiating random access procedure can or re-start according to the measurement result of last time to measure and judge that it is victim UE, then in specific Physical Random Access Channel, choosing Physical Random Access Channel and sending preamble.
The PUE2 that is positioned at the pico central area is not subject to the interference of macro, the RSRP value that it measures is greater than the RSRP threshold value that receives, and the RSRQ value that measures is greater than the RSRQ thresholding that receives, then judge it oneself is not victim UE, and continue not retrain RRM and measure or stop using and measure the set of constraint subframe and carry out RRM and measure constraint.If the PUE2 initiating random access procedure can or re-start according to the measurement result of last time to measure and judge that it is non-victim UE, then choose at random Physical Random Access Channel and send preamble.
Embodiment three
The present embodiment describe under macro-pico scene shown in Figure 2, adopt the situation of the decision method of RSRP value, PUE1 and PUE2 receive the RSRP threshold value that pico sends at system message SIB3 among this embodiment, and any subframe in each DRX cycle or only measure the RSRP value of Serving cell in ABS; The CRS resource of supposing macro and pico does not overlap, because macro does not dispatch UE at ABS, so that the RSRP of the pico that UE measures at ABS only is the CRS signal power of pico, and the RSRP of the pico that UE measures at non-ABS may be the CRS signal power of pico and the data-signal power sum of macro.Therefore, can both obtain to measure constraint subframe set (obtaining to measure the set of constraint subframe by the system message that receives pico such as UE) if reside in the IDLE UE of pico, then base station or network management network element can be only according to the suitable RSRP thresholding of transmitting power configuration of pico, and UE can only measure the RSRP value of Serving cell in ABS.Otherwise, if residing in the IDLE UE of pico differs surely and to obtain to measure constraint subframe set (obtaining to measure the set of constraint subframe by the system message that receives macro such as UE), then base station or network management network element configure suitable RSRP thresholding according to the transmitting power of pico and macro, and UE measures the RSRP value of Serving cell in any subframe.
The PUE1 that is positioned at the RE zone of pico is subject to the strong jamming of macro, and the RSRP value that it measures judges then that less than the RSRP threshold value that receives oneself be victim UE, and beginning or continue to use and measure the constraint subframe and gather and carry out the RRM measurement and retrain; If the PUE1 initiating random access procedure can or re-start according to the measurement result of last time to measure and judge that it is victim UE, then in specific Physical Random Access Channel, choosing Physical Random Access Channel and sending preamble.
The PUE2 that is positioned at the pico central area is not subject to the interference of macro, the RSRP value that it measures is greater than the RSRP threshold value that receives, then judge it oneself is not victim UE, and continue not retrain RRM and measure or stop using and measure the set of constraint subframe and carry out RRM and measure constraint.If the PUE2 initiating random access procedure can or re-start according to the measurement result of last time to measure and judge that it is non-victimUE, then choose at random Physical Random Access Channel and send preamble.
Embodiment four
The present embodiment describe under macro-femto scene shown in Figure 3, adopt the situation of the decision method of RSRP value.In this embodiment, to measure threshold information be the RSRP threshold value to the RRM that receives of UE.MUE1 and MUE2 receive the RSRP threshold value that macro sends at system message SIB4 among this embodiment, and then UE obtains the RSRP value of neighbor cell in the measuring process of cell reselection.Wherein, UE can measure femto in any subframe.
Be positioned at the strong jamming that near the femto MUE1 is subject to femto, its RSRP value that measures femto judges then that greater than the RSRP threshold value that receives oneself be victim UE, and beginning or continue to use to measure and retrain subframe and gather and carry out the RRM measurement and retrain; If the MUE1 initiating random access procedure can or re-start according to the measurement result of last time to measure and judge that it is victim UE, then in specific Physical Random Access Channel, choosing Physical Random Access Channel and sending preamble.
Be positioned at the macro central area and be not subject to the interference of femto away from the MUE2 of femto, its RSRP value that measures femto is less than the RSRP threshold value that receives, then judge it oneself is not victimUE, and continue not retrain RRM and measure or stop using and measure the set of constraint subframe and carry out RRM and measure constraint.If the PUE2 initiating random access procedure can or re-start according to the measurement result of last time to measure and judge that it is non-victim UE, then choose at random Physical Random Access Channel and send preamble.
Embodiment five
The present embodiment describe under macro-femto scene shown in Figure 3, adopt the situation of the decision method of RSRP value.In this embodiment, the RRM that receives of UE measures the PCI tabulation that threshold information is RSRP threshold value and related residential quarter thereof.
The PCI that MUE1 and MUE2 receive RSRP threshold value that macro sends at system message SIB4 and related residential quarter thereof among this embodiment tabulates (such as the PCI of femto), and then UE obtains the RSRP value of femto in the measuring process of cell reselection.Wherein, UE can measure femto in any subframe.
Be positioned at the strong jamming that near the MUE1 of femto is subject to femto, it measures the RSRP value of femto greater than the RSRP threshold value of this femto association that receives, judge that then oneself is victim UE, and beginning or continue to use measure the set of constraint subframe and carry out RRM and measure constraint; If the MUE1 initiating random access procedure can or re-start according to the measurement result of last time to measure and judge that it is victim UE, then in specific Physical Random Access Channel, choosing Physical Random Access Channel and sending preamble.
Be positioned at the macro central area and be not subject to the interference of femto away from the MUE2 of femto, it measures the RSRP value of femto less than the RSRP threshold value of this femto association that receives, then judge it oneself is not victim UE, and continue not retrain RRM and measure or stop using and measure the set of constraint subframe and carry out RRM and measure constraint.If the PUE2 initiating random access procedure can or re-start according to the measurement result of last time to measure and judge that it is non-victim UE, then choose at random Physical Random Access Channel and send preamble.
In a word, if described UE thinks that oneself is interfered, and opened to use and measured the measurement of constraint subframe set constraint, then proceeded this constraint and measure.If described UE thinks that oneself is not interfered, and not yet open this constraint and measure, then open this constraint and measure.If UE thinks that oneself is not interfered, and opened and used this constraint to measure, then stopped using this constraint to measure.If described UE thinks that oneself is not interfered, and not yet open this constraint and measure, then continue not use this constraint to measure.
The interference detection method of above-mentioned Idle state subscriber equipment, so that IDLE attitude UE can detect the interference that oneself whether is subject to aggressor cell, in order to judge whether that adopting the set of measurement constraint subframe to carry out RRM measures, or judge whether to choose specific Physical Random Access Channel and send random access leader sequence, save the UE power consumption, and the RRM that solves IDLE attitude UE measures and is disturbed the problem of inter-cell interference in the UE random access procedure, improves the success rate that is disturbed the random access of UE.
As shown in Figure 5, be the structural representation of terminal embodiment of the present invention, this UE comprises receiver module 51, measurement module 52 and determination module 53, wherein:
Receiver module is used for receiving RRM (RRM) the measurement threshold information that the base station sends;
Measurement module is used for neighbor cell to the resident Serving cell of described UE or described Serving cell and carries out RRM and measure, and obtains the RRM measurement result;
Determination module is used for the described RRM measurement result of described measurement module acquisition and the described RRM measurement threshold information of described receiver module reception are compared, and determines according to comparative result whether oneself is interfered.
In addition, described UE also comprises: access module is used for choosing at random Physical Random Access Channel and to send random access leader sequence in specific Physical Random Access Channel set after described determination module determines oneself to be interfered; After perhaps described determination module is determined oneself not to be interfered, choose at random Physical Random Access Channel and send random access leader sequence; Described measurement module, after also determining oneself to be interfered for described determination module, use is measured the set of constraint subframe and is carried out the RRM measurement, after perhaps described determination module is determined oneself not to be interfered, stops using the set of measurement constraint subframe to carry out RRM and measures.
This UE can detect the interference whether oneself is subject to aggressor cell, and concrete methods of realizing can referring to Fig. 4 and above-mentioned five embodiment, repeat no more herein.
Above-mentioned subscriber equipment, can detect oneself and whether be subject to the interference of aggressor cell, then judge whether that the employing measurement retrains the subframe set and carries out the RRM measurement, or judge whether to choose specific Physical Random Access Channel transmission random access leader sequence, minimizing UE power consumption.
One of ordinary skill in the art will appreciate that all or part of step in the said method can come the instruction related hardware to finish by program, said procedure can be stored in the computer-readable recording medium, such as read-only memory, disk or CD etc.Alternatively, all or part of step of above-described embodiment also can realize with one or more integrated circuits.Correspondingly, each the module/unit in above-described embodiment can adopt the form of hardware to realize, also can adopt the form of software function module to realize.The present invention is not restricted to the combination of the hardware and software of any particular form.
Above embodiment is only unrestricted in order to technical scheme of the present invention to be described, only with reference to preferred embodiment the present invention is had been described in detail.Those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement technical scheme of the present invention, and do not break away from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. the interference detection method of an Idle state subscriber equipment (UE), the method comprises:
UE receives RRM (RRM) the measurement threshold information that the base station sends;
Described UE carries out RRM to the neighbor cell of the resident Serving cell of described UE or described Serving cell and measures, and obtains the RRM measurement result;
Described UE compares described RRM measurement result and described RRM measurement threshold information, and whether determine to control oneself according to comparative result is interfered.
2. method according to claim 1 is characterized in that:
The RRM measurement threshold information that described UE receives the base station transmission comprises:
Described UE receives the described RRM that carries in the described system message by the system message that receives the base station transmission and measures threshold information.
3. method according to claim 2 is characterized in that:
Described RRM measures threshold information and comprises:
Reference Signal Received Quality (RSRQ) difference threshold value;
Reference Signal Received Power (RSRP) threshold value and RSRQ threshold value;
The RSRP threshold value; Perhaps
The RSRP threshold value reaches Physical Cell Identifier (PCI) tabulation of the residential quarter related with described RSRP threshold value.
4. method according to claim 3 is characterized in that:
Described UE carries out RRM to the neighbor cell of the resident Serving cell of described UE or described Serving cell and measures, and comprising:
If it is RSRQ difference threshold value that the RRM that described UE receives measures threshold information, then described UE measures the RSRQ value of described Serving cell in approximate blank subframe (ABS) and non-ABS at each discontinuous reception (DRX) respectively in the cycle, and then obtains the RSRQ difference of ABS and non-ABS;
If it is RSRP threshold value and RSRQ threshold value that the RRM that described UE receives measures threshold information, then described UE in each DRX cycle any subframe or in non-ABS, measure RSRP value and the RSRQ value of described Serving cell;
Under macro base station (macro)-micromicro honeycomb base station (pico) scene, if it is the RSRP threshold value that the RRM that described UE receives by system message measures threshold information, then described UE in each DRX cycle any subframe or in ABS, measure the RSRP value of described Serving cell;
Under macro-Home eNodeB (femto) scene, be the RSRP threshold value if the RRM that described UE receives by system message measures threshold information, then described UE obtains the RSRP value of described neighbor cell in the measuring process of cell reselection;
If it is the PCI tabulation that the RSRP threshold value reaches the residential quarter related with described RSRP threshold value that the RRM that described UE receives by system message measures threshold information, then described UE obtains the RSRP value of the PCI respective cell in the described PCI tabulation in the measuring process of cell reselection.
5. method according to claim 4 is characterized in that:
Described UE compares described RRM measurement result and described RRM threshold information, determines that according to comparative result whether oneself is interfered, and comprising:
If it is RSRQ difference threshold value that the RRM that described UE receives measures threshold information, then the described RSRQ difference that measures and described RSRQ difference threshold value are carried out RRM relatively, if described RSRQ difference is greater than described RSRQ difference threshold value, then described UE determines that oneself is interfered; Otherwise described UE determines that oneself is not interfered;
If it is RSRP threshold value and RSRQ threshold value that the RRM that described UE receives measures threshold information, then the described RSRP value that measures and RSRQ value are carried out RRM relatively with described RSRP threshold value and described RSRQ threshold value respectively, if described RSRP value is greater than described RSRP threshold value, and described RSRQ value is less than described RSRQ threshold value, and then described UE determines that oneself is interfered; Otherwise described UE determines that oneself is not interfered;
Under the macro-pico scene, if it is the RSRP threshold value that the RRM that described UE receives by system message measures threshold information, then the described RSRP value that measures and described RSRP threshold value are carried out RRM relatively, if described RSRP value is less than described RSRP threshold value, then described UE determines that oneself is interfered; Otherwise described UE determines that oneself is not interfered;
Under the macro-femto scene, if it is the RSRP threshold value that the RRM that described UE receives by system message measures threshold information, then the described RSRP value that measures and described RSRP threshold value are carried out RRM relatively, if described RSRP value is greater than described RSRP threshold value, then described UE determines that oneself is interfered; Otherwise described UE determines that oneself is not interfered;
If it is the PCI tabulation that the RSRP threshold value reaches the residential quarter related with described RSRP threshold value that the RRM that described UE receives by system message measures threshold information, then the described RSRP value that measures and described RSRP threshold value are carried out RRM relatively; If described RSRP value is greater than described RSRP threshold value, then described UE determines that oneself is interfered; Otherwise described UE determines that oneself is not interfered.
6. method according to claim 5 is characterized in that:
After described UE determined oneself to be interfered, described method also comprised:
Described UE uses the set of measurement constraint subframe to carry out RRM and measures, and perhaps chooses at random Physical Random Access Channel in specific Physical Random Access Channel is gathered and sends random access leader sequence; Perhaps
After described UE determined oneself not to be interfered, described method also comprised:
Described UE stops using the set of measurement constraint subframe to carry out RRM and measures, and perhaps chooses at random Physical Random Access Channel and sends random access leader sequence.
7. method according to claim 6 is characterized in that:
The Physical Random Access Channel set that the UE that is interfered that described specific Physical Random Access Channel set is broadcasted in system message for described base station can use.
8. the described method of arbitrary claim according to claim 1-7 is characterized in that:
The RRM that described base station sends measures threshold information:
Described base station is that the RRM of the neighbor cell configuration of described Serving cell or described Serving cell measures threshold information; Perhaps
The network management network element is the RRM measurement threshold information of the neighbor cell configuration of described Serving cell or described Serving cell by network management (OAM) mode.
9. a subscriber equipment (UE), this UE comprises:
Receiver module is used for receiving RRM (RRM) the measurement threshold information that the base station sends;
Measurement module is used for neighbor cell to the resident Serving cell of described UE or described Serving cell and carries out RRM and measure, and obtains the RRM measurement result;
Determination module is used for the described RRM measurement result of described measurement module acquisition and the described RRM measurement threshold information of described receiver module reception are compared, and determines according to comparative result whether oneself is interfered.
10. UE according to claim 9 is characterized in that, described UE also comprises:
Access module is used for choosing at random Physical Random Access Channel and to send random access leader sequence in specific Physical Random Access Channel set after described determination module determines oneself to be interfered; After perhaps described determination module is determined oneself not to be interfered, choose at random Physical Random Access Channel and send random access leader sequence;
Described measurement module, after also determining oneself to be interfered for described determination module, use is measured the set of constraint subframe and is carried out the RRM measurement, after perhaps described determination module is determined oneself not to be interfered, stops using the set of measurement constraint subframe to carry out RRM and measures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110306331.4A CN103052087B (en) | 2011-10-11 | 2011-10-11 | Interference detection method of idle-state user equipment and user equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110306331.4A CN103052087B (en) | 2011-10-11 | 2011-10-11 | Interference detection method of idle-state user equipment and user equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103052087A true CN103052087A (en) | 2013-04-17 |
| CN103052087B CN103052087B (en) | 2017-05-24 |
Family
ID=48064559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110306331.4A Expired - Fee Related CN103052087B (en) | 2011-10-11 | 2011-10-11 | Interference detection method of idle-state user equipment and user equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103052087B (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015032071A1 (en) * | 2013-09-06 | 2015-03-12 | 华为技术有限公司 | Interference detection method and system, management method and system, user equipment and base station |
| WO2016101864A1 (en) * | 2014-12-22 | 2016-06-30 | 索尼公司 | Management apparatus, measurement apparatus, management method, measurement method and digital device |
| WO2017035797A1 (en) * | 2015-09-01 | 2017-03-09 | 华为技术有限公司 | Measurement method and device |
| CN106559800A (en) * | 2015-09-28 | 2017-04-05 | 中兴通讯股份有限公司 | The joint assessment method and device of RRM RRM measurement events |
| CN107534877A (en) * | 2015-04-28 | 2018-01-02 | 瑞典爱立信有限公司 | For controlling the apparatus and method of wave beam grid |
| CN109150362A (en) * | 2017-06-15 | 2019-01-04 | 华为技术有限公司 | Communication means and device |
| WO2019028898A1 (en) * | 2017-08-11 | 2019-02-14 | 华为技术有限公司 | Power control method, network device and terminal device |
| WO2019095901A1 (en) * | 2017-11-15 | 2019-05-23 | 维沃移动通信有限公司 | Adjacent cell rrm measurement control method, mobile communication terminal, and network side device |
| CN110072249A (en) * | 2018-01-23 | 2019-07-30 | 大唐移动通信设备有限公司 | A kind of method and apparatus of detection base station interference |
| CN110475363A (en) * | 2018-05-11 | 2019-11-19 | 中兴通讯股份有限公司 | Selection method, device and the equipment of random access resource, storage medium |
| CN111247827A (en) * | 2017-09-28 | 2020-06-05 | 联想(北京)有限公司 | Method and apparatus for measurement report enhancement for over-the-air UEs |
| CN111526532A (en) * | 2019-02-02 | 2020-08-11 | 华为技术有限公司 | Cell measurement method and device |
| CN112867056A (en) * | 2017-06-14 | 2021-05-28 | Oppo广东移动通信有限公司 | Method and apparatus for radio resource measurement in wireless communication system |
| CN113055104A (en) * | 2021-03-09 | 2021-06-29 | 上海移远通信技术股份有限公司 | Signal detection method and system based on channel scanning |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101986586A (en) * | 2010-11-09 | 2011-03-16 | 中兴通讯股份有限公司 | Method and user equipment (UE) for measuring and feeding back channel quality |
| CN102131223A (en) * | 2010-01-13 | 2011-07-20 | 中国移动通信集团公司 | Interference management method and system in heterogeneous network and home base station |
-
2011
- 2011-10-11 CN CN201110306331.4A patent/CN103052087B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102131223A (en) * | 2010-01-13 | 2011-07-20 | 中国移动通信集团公司 | Interference management method and system in heterogeneous network and home base station |
| CN101986586A (en) * | 2010-11-09 | 2011-03-16 | 中兴通讯股份有限公司 | Method and user equipment (UE) for measuring and feeding back channel quality |
Non-Patent Citations (4)
| Title |
|---|
| CHINA TELECOM, HUAWEI: "《3GPP TSG-RAN WG2 Meeting #75 》", 26 August 2011, 3GPP * |
| NEW POSTCOM: "《3GPP TSG RAN WG2 Meeting #75, R2-114133》", 13 August 2011, 3GPP * |
| QUALCOMM INCORPORATED: "《3GPP TSG-RAN WG2 meeting #72》", 19 November 2010, 3GPP * |
| ZTE: "《3GPP TSG-RAN WG2 Meeting #75, R2-113792》", 16 August 2011, 3GPP * |
Cited By (27)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015032071A1 (en) * | 2013-09-06 | 2015-03-12 | 华为技术有限公司 | Interference detection method and system, management method and system, user equipment and base station |
| WO2016101864A1 (en) * | 2014-12-22 | 2016-06-30 | 索尼公司 | Management apparatus, measurement apparatus, management method, measurement method and digital device |
| CN105792243A (en) * | 2014-12-22 | 2016-07-20 | 索尼公司 | Management device, measurement device, management method, measurement method and electronic equipment |
| US10531355B2 (en) | 2014-12-22 | 2020-01-07 | Sony Corporation | Management apparatus, measurement apparatus, management method, measurement method and digital device with layer-3 filtering of measurement results |
| US11089531B2 (en) | 2014-12-22 | 2021-08-10 | Sony Corporation | Management apparatus, measurement apparatus, management method, measurement method and digital device with layer-3 filtering of measurement results |
| CN107534877A (en) * | 2015-04-28 | 2018-01-02 | 瑞典爱立信有限公司 | For controlling the apparatus and method of wave beam grid |
| CN107534877B (en) * | 2015-04-28 | 2021-06-15 | 瑞典爱立信有限公司 | Apparatus and method for controlling beam grid |
| WO2017035797A1 (en) * | 2015-09-01 | 2017-03-09 | 华为技术有限公司 | Measurement method and device |
| US10993130B2 (en) | 2015-09-01 | 2021-04-27 | Huawei Technologies Co., Ltd. | Measurement method and apparatus |
| CN106559800A (en) * | 2015-09-28 | 2017-04-05 | 中兴通讯股份有限公司 | The joint assessment method and device of RRM RRM measurement events |
| WO2017054477A1 (en) * | 2015-09-28 | 2017-04-06 | 中兴通讯股份有限公司 | Radio resource management (rrm) measurement event evaluation method and device |
| CN106559800B (en) * | 2015-09-28 | 2020-01-10 | 中兴通讯股份有限公司 | Joint evaluation method and device for Radio Resource Management (RRM) measurement event |
| CN112867056A (en) * | 2017-06-14 | 2021-05-28 | Oppo广东移动通信有限公司 | Method and apparatus for radio resource measurement in wireless communication system |
| CN109150362A (en) * | 2017-06-15 | 2019-01-04 | 华为技术有限公司 | Communication means and device |
| WO2019028898A1 (en) * | 2017-08-11 | 2019-02-14 | 华为技术有限公司 | Power control method, network device and terminal device |
| CN111247827B (en) * | 2017-09-28 | 2022-04-22 | 联想(北京)有限公司 | Method and apparatus for measurement report enhancement for over-the-air UEs |
| CN111247827A (en) * | 2017-09-28 | 2020-06-05 | 联想(北京)有限公司 | Method and apparatus for measurement report enhancement for over-the-air UEs |
| CN109803429B (en) * | 2017-11-15 | 2021-01-08 | 维沃移动通信有限公司 | RRM (radio resource management) measurement control method of adjacent cell, mobile communication terminal and network side equipment |
| CN109803429A (en) * | 2017-11-15 | 2019-05-24 | 维沃移动通信有限公司 | RRM measurement control method, mobile communication terminal and the network side equipment of adjacent cell |
| WO2019095901A1 (en) * | 2017-11-15 | 2019-05-23 | 维沃移动通信有限公司 | Adjacent cell rrm measurement control method, mobile communication terminal, and network side device |
| US11653227B2 (en) | 2017-11-15 | 2023-05-16 | Vivo Mobile Communication Co., Ltd. | Method of controlling radio resource management measurement of neighboring cell, mobile communication terminal, and network side device |
| CN110072249B (en) * | 2018-01-23 | 2020-12-04 | 大唐移动通信设备有限公司 | Method and device for detecting base station interference |
| CN110072249A (en) * | 2018-01-23 | 2019-07-30 | 大唐移动通信设备有限公司 | A kind of method and apparatus of detection base station interference |
| CN110475363A (en) * | 2018-05-11 | 2019-11-19 | 中兴通讯股份有限公司 | Selection method, device and the equipment of random access resource, storage medium |
| CN111526532A (en) * | 2019-02-02 | 2020-08-11 | 华为技术有限公司 | Cell measurement method and device |
| CN111526532B (en) * | 2019-02-02 | 2022-04-05 | 华为技术有限公司 | Cell measurement method and device |
| CN113055104A (en) * | 2021-03-09 | 2021-06-29 | 上海移远通信技术股份有限公司 | Signal detection method and system based on channel scanning |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103052087B (en) | 2017-05-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103052087B (en) | Interference detection method of idle-state user equipment and user equipment | |
| KR101170267B1 (en) | Battery efficient method to search for preferred femtocell | |
| KR101927568B1 (en) | Method and system for small cell discovery in heterogeneous cellular networks | |
| JP5663661B2 (en) | Idle mode hybrid mobility procedure in heterogeneous networks | |
| US8861452B2 (en) | Method and apparatus for use of licensed spectrum for control channels in cognitive radio communications | |
| CN102474777B (en) | Apparatus and method for determining mobility state in wireless communication system | |
| KR101789461B1 (en) | Method and apparatus for determining to use x2 gateway for x2 interface | |
| KR20120115946A (en) | Method and apparatus to control ue cell reselection priority while ue is in csg cell | |
| US20140106740A1 (en) | Blind and traffic demand based configurations of compressed mode for inter-frequency femtocell search | |
| CN103069886B (en) | Interference user detection method, Home eNodeB and subscriber equipment | |
| CN102438249A (en) | Interference coordination method under home base station and macro base station application context | |
| CN103052108B (en) | Detection method and user equipment that Idle state user equipment is interfered | |
| CN103906127A (en) | Long term evolution network same-frequency neighbor cell measurement method and system | |
| CN102938916A (en) | Cell selection method and user equipment (UE) in reconstruction process | |
| US20110105133A1 (en) | Restricted access in cellular communication systems | |
| WO2014190506A1 (en) | Interference control method and device for networking of macro and micro base station at same frequency | |
| CN102572979A (en) | Disturbance control starting method based on registration in long term evolution (LTE) heterogeneous network | |
| CN104641699A (en) | Interference reduction through cell activation methods in heterogeneous networks |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 Termination date: 20201011 |