CN104469891B - Select the method, system and device of the donor cell base station of relay node - Google Patents

Select the method, system and device of the donor cell base station of relay node Download PDF

Info

Publication number
CN104469891B
CN104469891B CN201310435008.6A CN201310435008A CN104469891B CN 104469891 B CN104469891 B CN 104469891B CN 201310435008 A CN201310435008 A CN 201310435008A CN 104469891 B CN104469891 B CN 104469891B
Authority
CN
China
Prior art keywords
base station
neighbor base
denb
return link
information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201310435008.6A
Other languages
Chinese (zh)
Other versions
CN104469891A (en
Inventor
闫渊
王军
程广辉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China Mobile Communications Group Co Ltd
Original Assignee
China Mobile Communications Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China Mobile Communications Group Co Ltd filed Critical China Mobile Communications Group Co Ltd
Priority to CN201310435008.6A priority Critical patent/CN104469891B/en
Publication of CN104469891A publication Critical patent/CN104469891A/en
Application granted granted Critical
Publication of CN104469891B publication Critical patent/CN104469891B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W24/00—Supervisory, monitoring or testing arrangements
    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
    • 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
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention discloses a kind of method, system and device of the donor cell base station of selection relay node, according to the data capacity relevant information of multiple neighbor base stations of the signal strength requirement for meeting relay node transmission data obtained respectively, and the return link channel quality information of relay node and multiple neighbor base station, after calculating separately the return link available channel capacity between multiple neighbor base station and relay node, the wherein maximum neighbor base station of return link available channel capacity is selected to be accessed as the donor cell base station of relay node.The present invention improves the transmission performance of relay node.

Description

Select the method, system and device of the donor cell base station of relay node
Technical field
The present invention relates to field of wireless communications systems, more particularly to a kind of selection relay node（RN）Donor cell base station Method, system and device.
Background technology
In order to cope with the wireless propagation environment of various complexity, the following long term evolution is solved（LTE）The covering of network deployment is asked Topic, third generation partner program（3GPP）LTE-AR10 release protocols in RN is standardized.By in macro base station A RN is added between user terminal, the link that direct transfers between macro base station and user terminal is divided into two sections：Macro base station and RN Between Radio Link be known as return link, i.e. Un interfaces；Radio Link between RN and user terminal is known as access link, i.e., Uu interfaces, the LTE system structural schematic diagram with RN that the prior art as shown in Figure 1 provides.By carrying out reasonable portion to RN Administration, two sections of links after fractionation may have the propagation distance more shorter than the link that direct transfers, while the shelter in round Also it can reduce so that two sections of links after fractionation all have radio propagation conditions more better than the link that direct transfers and higher transmission energy Power.
The main feature of RN includes：1）Wireless backhaul is provided, can not be reached in some optical fiber or wired passback construction is compared Difficult scene, such as：The indoor office environments of no administration of room branch, optical fiber can not arrive the residential building at family, the city without wired passback The micro- covering scene in area and remote suburb or rural area etc. can effectively be spread over by RN of the introducing with wireless backhaul function, solved Certainly fiber resource scarcity problem and deployment are flexible and convenient；2）Coverage enhancement, in the LTE-AR10 stages, RN is mainly or for solving Coverage enhancement rather than capacity boost, by introducing, RN can eliminate shade overlay area caused by pile group or covering is blind Area improves the covering power of base station.
RN is broadly divided into interior RN and with outer RN.Return link and access link with interior RN are in identical band resource Transmission, time division multiplexing；Return link and access link with outer RN are in different transmitted in band, frequency division multiplexing.In LTE network In, primary concern is that with interior RN, possesses oneself independent cell ID with interior RN, be equivalent to an independent cell, it can be with Carry out the processing of layer 3.
For RN in electrifying startup, behavior is similar with user terminal, and such as when selecting donor cell, RN scans its all energy The cell detected, and the maximum cell access of its levels of service is selected, levels of service can be reference signal access power （RSRP）, the donor cell evolution base station as RN（DeNB, Donor eNB）.Generally, due to which RN installations are typically all to fix , the DeNB of selection is typically also changeless.In addition, when disposing RN in real network, can also consider to be directed to DeNB Beam direction optimize, such as when return antenna use directional aerial when, can as possible RN passback antenna main lobe direction It is directed at the main lobe direction of the antenna of DeNB, to reach the interference for improving useful signal energy and inhibiting other cells.
Usually, the transmission performance of RN cells is limited to the transmission performance of return link, therefore, how to improve RN cells Transmission performance bottleneck, the i.e. transmission performance of return link are the key that enhancing RN system performances.
Currently, when RN selects DeNB, RN is similar with user terminal, is mainly selected according to the RSRP of its detection, selected DeNB it is usually fixed.However, since RN and user terminal are different, RN administers an individual cell, in access chain Road needs to service more user terminal, therefore, user terminal is much larger than to the data capacity demand of DeNB.
RN is to be deployed in blind area or the weak area of coverage mend blind, is believed caused by order to overcome building to block or penetrate diffraction etc. Number decaying, RN is typically mounted on higher and open position, such as roof.Thus, compared to being typically in ground or indoor use Family terminal, usual RN receive the signal of more multiple cell.Fig. 2 is the schematic network structure that prior art RN selects DeNB, is such as schemed Shown, RN is although not in the coverage area of eNB2, in general, the coverage area is the coverage area of level ground, but due to The decorating position of RN is higher, and RN remains to receive the signal of eNB2.In view of to receive the signal strength from eNB1 most strong by RN, because This, it can select eNB1 as its DeNB.However, it is contemplated that such a case, it is assumed that eNB2 is deployed in office building region, main Office building user terminal is given to provide high speed bandwidth data services, to after evening, during office building user terminal is gone back home, this When, the load of eNB2 is very low, i.e., the loading condition of eNB2 has typical tidal effect, at this point, even if the eNB1 of detection Levels of service is better than eNB2, but due to the load of eNB1 and eNB2 difference, causes eNB1 and eNB2 that can distribute to the resource of RN not Together, then in such cases, it may not be optimal that RN, which selects eNB1 as DeNB,.Particularly, it is contemplated that the LTE eNB in future may All it is the multicarrier macro base station with FD double frequencies, the low-frequency range coverage area such as F-band is larger, provides covering, such as the height of D frequency ranges Frequency range coverage area is small, but bandwidth is larger, is mainly used for providing capacity.On these high bands, since coverage area is small, bandwidth Greatly, carry out the concurrent heating of office building hot spot region using D frequency ranges such as eNB2, degree of fluctuation meeting of load it is obvious that i.e. appearance compared with Apparent tidal effect, the time load that works by day is heavier, at night After Hours light load, user terminal selecting eNB2 conducts DeNB may be more excellent as DeNB than using user terminal selecting eNB1.
As can be seen that cause RN that eNB1 is selected to be as the reason of DeNB, when selecting DeNB, what is mainly compared is RN The signal strength of the reflection levels of service of such as RSRP, the loading condition without considering macro base station.And in fact, RN is being returned The transmission performance of link is not merely limited to the signal strength between DeNB, is also limited to the interface-free resources of DeNB offers, i.e. DeNB Loading condition.So RN determines DeNB according to the signal strength of detection peripheral cell base station, the transmission performance of RN can be caused to drop It is low.
Invention content
In view of this, the present invention provides a kind of method of the donor cell base station of selection relay node, this method can carry The transmission performance of high RN.
The present invention also provides a kind of system of the donor cell base station of selection relay node, which can improve the biography of RN Defeated performance.
The present invention also provides a kind of device of the donor cell base station of selection relay node, which can improve the biography of RN Defeated performance.
In order to achieve the above objectives, what what the present invention was implemented be specifically realized in：
A method of the donor cell base station of selection relay node, this method include：
The data capacity of the multiple neighbor base stations for the signal strength requirement for meeting relay node RN transmission datas is obtained respectively Relevant information；
The return link channel quality information of RN and multiple neighbor base station are obtained respectively；
According to the data capacity relevant information of acquired multiple neighbor base station and corresponding return link channel quality Information calculates separately the return link available channel capacity between multiple neighbor base station and RN；
The wherein maximum neighbor base station of return link available channel capacity is selected to be connect as the donor cell base station DeNB of RN Enter.
The signal strength of the transmission data is the total reference signal access power RSRP and interference information of LTE network, or Reference Signal Received Quality RSRQ；
The data capacity information includes the return link between the load information and neighbor base station and RN of neighbor base station Un interface configuration informations；
Using formula（1）Calculate separately the return link available channel capacity between multiple neighbor base station and RN：
Ci=f（SINRi, 1-Ti, configi）Formula（1）；
Wherein, CiIdentify the return link available channel capacity between i-th of neighbor base station and RN；SINRiI-th of mark The signal-to-noise ratio of return link between neighbor base station and RN, TiIt is the load information of i-th of neighbor base station, configiIt is i-th The Un interface configuration informations of return link between neighbor base station and RN；f（）Expression and SINRi、1-TiAnd configiIt is relevant Function.
The method is executed by RN, before the process per se, further includes：
RN accesses original DeNB, detects the signal strength of neighbor base station, will be strong with the signal more than the measurement thresholding of setting The neighbor base station identification information of degree is sent to former DeNB；
RN obtains the data capacity phase of the multiple neighbor base stations for the signal strength requirement for meeting RN transmission datas from former DeNB Closing information is：
RN obtains the data capacity relevant information of the neighbor base station of corresponding neighbor base station identification information from former DeNB, described right The data capacity relevant information of the neighbor base station of neighbor base station identification information is answered to be former DeNB from LTE network side or correspond to adjacent area base What the neighbor base station of station identifications information was got；
It is described to select DeNB for target DeNB；
Before the RN access targets DeNB, further include：Disconnect the connection between original DeNB.
The method is executed by RN, before the process per se, further includes：
RN detects the signal strength of neighbor base station, using the signal strength with the measurement thresholding more than setting as in satisfaction After multiple neighbor base stations of the signal strength of node RN transmission data, it is sequentially ingressed into.
The signal strength of the transmission data is the total RSRP and interference information or RSRQ of LTE network；
The data capacity information includes the return link between the load information and neighbor base station and RN of neighbor base station Un interface configuration informations；
Using formula（2）Calculate separately the return link available channel capacity between multiple neighbor base station and RN：Ci=g （SINRi）*min（configi,（1-Ti）*DN）, formula（2）；
Wherein, g（）It is according to the corresponding each time slot of the signal-to-noise ratio of the return link between i-th of neighbor base station and RN Spectrum efficiency or handling capacity；TiIt is the load information of i-th of neighbor base station；DN is the current time slots configuration of i-th of neighbor base station The number of middle descending time slot；configiIndicate the number of the return link descending time slot in the Un interface configuration informations of RN.
The method is executed by the former DeNB that RN is accessed, and before the process per se, further includes：
Former DeNB receives the neighbor base station mark letter of the signal strength with the measurement thresholding more than setting of RN transmissions Breath, and the return link channel quality information with neighbor base station；
Former DeNB obtains the data capacity phase of the multiple neighbor base stations for the signal strength requirement for meeting RN transmission datas from RN Closing information is：
Former DeNB obtains corresponding neighbor base station mark from LTE network side or the neighbor base station of corresponding neighbor base station identification information Know the data capacity relevant information of the neighbor base station of information；
It is described to select DeNB for target DeNB；
Before the access target DeNB, further include：Former DeNB instructions RN disconnects the connection between original DeNB, indicates RN Access target DeNB.
The signal strength of the transmission data is the total RSRP and interference information or RSRQ of LTE network；
The data capacity information includes the return link between the load information and neighbor base station and RN of neighbor base station Un interface configuration informations；
Using formula（3）Calculate separately the return link available channel capacity between multiple neighbor base station and RN：
Ci=g（MRi）*min（configi,（1-Ti）*DN）, formula（3）；
Wherein, MRiIt is the return link channel quality information between RN and i-th of neighbor base station, the g that RN is reported（）It is root According to the corresponding each time slot of return link channel quality information between i-th of neighbor base station and RN spectrum efficiency or handle up Amount；TiIt is the load information of i-th of neighbor base station；DN is the number of descending time slot during the current time slots of i-th of neighbor base station configure Mesh；configiIndicate the return link downlink in the Un interface configuration informations of the return link between RN and i-th of neighbor base station The number of time slot.
This method further includes：Remote-controllable or automatic rotable antenna function is arranged in RN, after selecting DeNB accesses, the function control The antenna of RN processed rotates automatically, is automatically rotated to the maximum direction of signal strength for receiving DeNB.
A kind of system of the donor cell base station of selection relay node, the system packet include：RN and target DeNB, wherein
RN, for being held according to the data for the multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively Relevant information is measured, and being detected with multiple neighbor base station return link channel quality information, calculates separately multiple neighbour After return link available channel capacity between area base station and RN, the selection wherein maximum adjacent area of return link available channel capacity Target DeNB access of the base station as RN；
Target DeNB, for accessing RN.
The system also includes former DeNB, the neighbour for obtaining the corresponding multiple neighbor base station identification informations received respectively The data capacity relevant information of area base station, is sent to RN；
RN, the multiple neighbor base stations for being additionally operable to send the signal strength requirement for meeting RN transmission datas to former DeNB identify letter Breath receives the data capacity relevant information of the multiple neighbor base stations for the signal strength requirement for meeting RN transmission datas from former DeNB, Before accessing target DeNB, the connection between original DeNB is disconnected.
A kind of device of the donor cell base station of selection relay node, the device include：It computing module, selecting module and connects Enter module, wherein
Computing module, for according to the multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively Data capacity relevant information, and it is being detected with multiple neighbor base station return link channel quality information, calculate separately this Return link available channel capacity between multiple neighbor base stations and RN；
Selecting module, for selecting wherein target of the maximum neighbor base station of return link available channel capacity as RN DeNB；
AM access module, for accessing target DeNB.
The device further includes transceiver module, for former DeNB send meet RN transmission datas signal strength requirement it is more A neighbor base station identification information receives the number of the multiple neighbor base stations for the signal strength requirement for meeting RN transmission datas from former DeNB According to capacity relevant information；
AM access module is additionally operable to before accessing target DeNB, disconnects the connection between original DeNB.
A kind of system of the donor cell base station of selection relay node, including：RN, original DeNB and target DeNB, wherein
RN, multiple neighbor base station identification informations for sending the signal strength requirement for meeting RN transmission datas to former DeNB And the return link channel quality information between RN；Under the instruction of former DeNB, the connection between original DeNB, access are disconnected The target DeNB of corresponding target DeNB identification informations；
Former DeNB, for the number according to the multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively According to the return link channel quality information with multiple neighbor base station that capacity relevant information and RN are sent, it is more to calculate separately this After return link available channel capacity between a neighbor base station and RN, select wherein return link available channel capacity maximum Target DeNB identification informations are sent to RN, instruction RN access targets DeNB by target DeNB of the neighbor base station as RN；
Target DeNB, for accessing RN.
It is a kind of selection relay node donor cell base station device, including acquisition module, computing module, selecting module and Indicating module, wherein
Acquisition module, the data of multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively The return link channel quality information with multiple neighbor base station that capacity relevant information and RN are sent；
Computing module, for according to the multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively The return link channel quality information with multiple neighbor base station that data capacity relevant information and RN are sent, calculates separately this Return link available channel capacity between multiple neighbor base stations and RN；
Selecting module, for selecting wherein target of the maximum neighbor base station of return link available channel capacity as RN DeNB；
Indicating module is used to indicate RN and disconnects access, access target DeNB.
As can be seen from the above scheme, the present invention is when for trunk node selection donor cell base station, according to obtaining respectively The signal strength requirement for meeting relay node transmission data multiple neighbor base stations data capacity relevant information, and relaying section The return link channel quality information of point and multiple neighbor base station, calculates separately between multiple neighbor base station and relay node Return link available channel capacity after, select wherein the maximum neighbor base station of return link available channel capacity as relaying save The donor cell base station access of point.Since the transmission performance of RN is not merely limited to its return link between the base station of donor cell Signal strength, and the data transmission capacity for the return link being limited between the base station of donor cell, so in selection alms giver These two aspects factor is combined when cell base station, only the relay node detected by relay node transmits like that with the prior art The scheme of the signal strength size selection donor cell base station of data is compared, and the transmission performance of RN is improved.
Description of the drawings
Fig. 1 is the LTE system structural schematic diagram with RN that the prior art provides；
Fig. 2 is the schematic network structure that prior art RN selects DeNB；
Fig. 3 is the method flow diagram of the donor cell base station of selection relay node provided in an embodiment of the present invention；
Fig. 4 is one flow chart of method example that RN provided in an embodiment of the present invention selects DeNB；
Fig. 5 is two flow chart of method example that RN provided in an embodiment of the present invention selects DeNB；
Fig. 6 is the method flow diagram that original DeNB provided in an embodiment of the present invention is RN selection targets DeNB；
Fig. 7 is one structural schematic diagram of system of the donor cell base station of selection relay node provided in an embodiment of the present invention；
Fig. 8 is one structural schematic diagram of device of the donor cell base station of selection relay node provided in an embodiment of the present invention；
Fig. 9 is two structural schematic diagram of system of the donor cell base station of selection relay node provided in an embodiment of the present invention；
Figure 10 is two structural schematic diagram of device of the donor cell base station of selection relay node provided in an embodiment of the present invention.
Specific implementation mode
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, develop simultaneously embodiment referring to the drawings, right The present invention is described in further detail.
From background technology as can be seen that RN select DeNB when cause the transmission performance of RN not high reason be mainly：Root DeNB is selected according to the signal strength size of the transmission data of RN detections, the biography without considering the return link between RN and DeNB Transmission of data amount of capacity.However, the transmission data amount of capacity of the return link between RN and DeNB is also to the transmission performance of RN There is conclusive influence.
Therefore, the present invention is wanted when selecting DeNB for RN according to the signal strength for meeting RN transmission datas obtained respectively The data capacity relevant information and RN of the multiple neighbor base stations asked are believed with the return link channel quality of multiple neighbor base station Breath after calculating separately the return link available channel capacity between multiple neighbor base station and RN, selects wherein return link can The DeNB for using the maximum neighbor base station of channel capacity as RN is accessed.The biography of RN is influenced due to being combined when selecting the DeNB of RN The these two aspects factor of defeated performance, it is possible to improve the transmission performance of RN.
Fig. 3 is the method flow diagram of the donor cell base station of selection relay node provided in an embodiment of the present invention, specific Step is：
Step 301, acquisition meets the data capacity of multiple neighbor base stations of the signal strength requirement of RN transmission datas respectively Information；
In this step, RN detects the signal of the transmission data of such as RSRP of neighbor base station around it according to the prior art Intensity value, and by detected signal strength values compared with set measurement thresholding, will be greater than set measurement thresholding Neighbor base station of the corresponding neighbor base station of signal strength values of value as the signal strength requirement for meeting RN transmission datas, the survey Amount thresholding is arranged according to actual needs, and the signal strength of the measurement thresholding ensures that RN being capable of transmission data；
Certainly, the signal strength of transmission data can also be that LTE network total RSRP and interference information or reference signal connect Receive quality（RSRQ）；
In this step, data capacity information includes time between the load information and neighbor base station and RN of neighbor base station Pass the Un interface configuration informations of link；
Step 302, according to the negative of multiple neighbor base stations of the signal strength requirement for meeting RN transmission datas obtained respectively Information carrying ceases and the return link channel quality information of RN and multiple adjacent area, calculates separately between multiple neighbor base station and RN Return link available channel capacity；
In this step, using formula（1）Letter can be used by calculating separately the return link between multiple neighbor base station and RN Road capacity：
Ci=f（SINRi, 1-Ti, configi）Formula（1）
Wherein, CiIdentify the return link available channel capacity between i-th of neighbor base station and RN；SINRiI-th of mark The signal-to-noise ratio of return link between neighbor base station and RN, TiIt is the load information of i-th of neighbor base station, configiIt is i-th The Un interface configuration informations of return link between neighbor base station and RN；f（）Expression and SINRi、1-TiAnd configiIt is relevant Function；
Step 303 selects the wherein maximum cell base station of return link available channel capacity to be accessed as the DeNB of RN.
Process described in Fig. 3 can have two kinds of different realization methods, have individually below due to the difference of executive agent Body explanation.
When executive agent is RN, when being exactly that RN actively selects DeNB, process is as shown in figure 4, Fig. 4 is present invention implementation One flow chart of method example for the RN selections DeNB that example provides, reselection mesh after RN is accessed according to prior art selection original DeNB DeNB is marked, the specific steps are：
After step 401, RN select original DeNB according to the signal strength size of the transmission data detected, the original is accessed DeNB；
Step 402, RN measure neighbor base station signal strength, and respectively with the measurement thresholding of setting relatively after, by signal The adjacent area identification information that intensity is more than the measurement thresholding of setting is sent to former DeNB；
In this step, adjacent area identification information can be Physical Cell Identifier（PCI）Or Evolved Universal Terrestrial wirelessly connects Enter network cellular global identity（ECGI）；
Herein, PCI is only carried on synchronizing signal, including primary synchronization signal and secondary synchronization signal（PSS/SSS）It sends, RN It can be obtained by the PCI of neighbor base station by demodulating PSS/SSS, it is fairly simple, it sends and is easy；ECGI is carried on system broadcasts and disappears Breath（SIB）In, demodulated for RN it is relatively difficult, but since PCI may not have uniqueness, so sending ECGI can be with It avoids confusion problem；
After step 403, original DeNB receive adjacent area identification information, the mobility management entity of LTE network side is accessed（MME） Or with the neighbor base station of corresponding adjacent area identification information by X2 mouthfuls of Signalling exchanges, it is determined to support the neighbor base station of RN；
In this step, not all neighbor base station can support RN and Un interface protocols, so to confirm；
Step 404, original DeNB get the data capacity relevant information for the neighbor base station that can support RN, including load letter After the Un interface configuration informations of breath and the return link between RN, RN is sent to by high-level signaling；
In this step, high-level signaling can be radio resource control（RRC）Signaling；
After step 405, RN are received, in conjunction with the return link channel quality information with each neighbor base station, according to formula （1）Calculate separately the return link available channel capacity with each neighbor base station；
Step 406, RN select wherein target DeNB of the maximum neighbor base station of return link available channel capacity as RN, After breaking the connection with original DeNB, target DeNB is accessed.
In this embodiment, for former DeNB also as a neighbor base station of RN, the return link carried out between RN is available Channel capacity calculates, then compared with the return link available channel capacity between RN that other neighbor base stations are calculated Afterwards, it if original DeNB is maximum, need not disconnect, still the DeNB by former DeNB as RN.
Fig. 5 is two flow chart of method example that RN provided in an embodiment of the present invention selects DeNB, which executes one time The cell access operation gone through, and select the cell base station of maximum return link available channel capacity as DeNB, it is specific to walk Suddenly it is：
After step 501, RN electrifying startups, search measures its neighbor base station that can be detected, obtains each neighbor base station Signal strength, and respectively with the measurement thresholding of setting relatively after, obtain the measurement thresholding that multiple signal strengths are more than setting Neighbor base station；
Step 502, RN are sequentially ingressed into multiple neighbor base station, get the data capacity correlation letter of multiple neighbor base station Breath, includes the Un interface configuration informations of load information and the return link between RN；
Step 503, RN believe the data capacity relevant information of each neighbor base station in conjunction with the return link of each adjacent area Road quality information, according to formula（1）Calculate separately the return link available channel capacity with each neighbor base station；
Step 504, RN select the wherein maximum neighbor base station of return link available channel capacity as the DeNB of RN and connect Enter.
Lift a specific embodiment explanation, in the method, formula（1）It is specifically as follows：
Ci=g（SINRi）*min（configi,（1-Ti）*DN）, formula（2）
Wherein, g（）It is according to the corresponding each time slot of the signal-to-noise ratio of the return link between i-th of neighbor base station and RN Spectrum efficiency or handling capacity can be calculated by Shannon equation, can also be arranged mapping table, and the setting of the mapping table can be with It is to be obtained by looking into the link level simulation curve table of TD-LTE, which can be stored in RN, and can be according to RN's The actual running results real-time update；DN is the number of descending time slot during the current time slots of i-th of neighbor base station configure；configi Indicate the number of the return link descending time slot in the Un interface configuration informations of RN, the type by RN and used return link Configuration determines：Such as to interior RN, if it configures 4, config using return linkiValue is 2, and to outer RN, then configiValue is DN.
In this way, by method provided by the invention be applied to it is shown in Fig. 2 during, then the SINR ratios eNB1 of eNB2 is low, but It is then to pass through formula since the load level of eNB2 is higher than eNB1（2）Calculating, select that eNB2 can obtain as DeNB with Return link available channel capacity between RN is higher than eNB1 as DeNB, and at this moment, according to the method provided by the invention, RN can To select eNB2 to be accessed as DeNB, so as to improve the transmission performance of RN, in addition, being also effectively utilized the idle money of eNB2 Source releases the resource of the eNB1 of RN occupancy, handling up for the other users terminal of eNB1 services is improved, also to eNB2 and eNB1 Play the effect of certain load balancing.
It is exactly original DeNB for RN selection targets DeNB when executive agent is the former DeNB that RN select according to the prior art When, as shown in fig. 6, Fig. 6 is the method flow diagram that original DeNB provided in an embodiment of the present invention is RN selection targets DeNB, it is specific Step is：
After step 601, RN select original DeNB according to the signal strength size of the transmission data detected, the original is accessed DeNB；
In this step, measured signal strength can be that RSRP and interference information or LTE network reference signal connect Receive quality（RSRQ）；
Step 602, RN measure neighbor base station signal strength, and respectively with the measurement thresholding of setting relatively after, by signal Intensity is more than the adjacent area identification information of the measurement thresholding of setting and corresponding measured signal message is sent to former DeNB；
In this step, adjacent area identification information can be physical region mark（PCI）Or Evolved Universal Terrestrial wirelessly connects Enter network cellular global identity（ECGI）；
Measured signal message is RSRP and interference information or RSRQ；
After step 603, original DeNB receive adjacent area identification information, access MME or with the adjacent area of corresponding adjacent area identification information Base station is determined to support the neighbor base station of RN by X2 mouthfuls of Signalling exchanges；
In this step, not all neighbor base station can support RN and Un interface protocols, so to confirm；
Step 604, original DeNB get the data capacity relevant information of the neighbor base station of corresponding adjacent area identification information, including The Un interface configuration informations of load information and RN and the return link of the neighbor base station；
Step 605, original DeNB are by the data capacity relevant information of the neighbor base station of the correspondence adjacent area identification information got In conjunction with the return link channel quality information with each neighbor base station, according to formula（1）It calculates separately and each neighbor base station Return link available channel capacity；
Herein, it is reported by RN with the return link channel quality information of each neighbor base station, that is, RN is reported Measuring signal information, be the total RSRP and interference information or RSRQ of LTE network；
Step 606, original DeNB select wherein target of the maximum neighbor base station of return link available channel capacity as RN Target DeNB identification informations are sent to RN by DeNB by high-level signaling, and instruction RN is determined according to target DeNB identification informations Target DeNB after breaking the connection with original DeNB, accesses target DeNB.
In this embodiment, for former DeNB also as a neighbor base station of RN, the return link carried out between RN is available Channel capacity calculates, then compared with the return link available channel capacity between RN that other neighbor base stations are calculated Afterwards, it if original DeNB is maximum, need not disconnect, still the DeNB by former DeNB as RN.
Lift the method described in a specific example definition graph 6
In the method, formula（1）It is specifically as follows：
Ci=g（MRi）*min（configi,（1-Ti）*DN）, formula（3）
Wherein, MRiIt is the return link channel quality information between RN and i-th of neighbor base station, can is channel quality Instruction（CQI）, g that RN is reported（）It is corresponding according to the return link channel quality information between i-th of neighbor base station and RN The spectrum efficiency or handling capacity of each time slot, such as determine adaptive modulation coding scheme according to CQI（AMC）, so that it may with basis AMC determines the spectrum efficiency or handling capacity of corresponding each time slot；DN is downlink during the current time slots of i-th of neighbor base station configure The number of time slot；configiIndicate the passback in the Un interface configuration informations of the return link between RN and i-th of neighbor base station The number of downlink time slot is determined by the type of RN and the configuration of used return link：Such as to interior RN, if it is used Return link configures 4, then configiValue is 2, and to outer RN, then configiValue is DN.
Method provided by the present invention is executed according to the period of setting when being executed, could be provided as a few hours or half a day is Period.This is because, it is contemplated that RN does not support handover operation, and access is executed again after having to be off the connection between original DeNB The operation of target DeNB, this means that all user terminals that RN is serviced can all disconnect the connection with LTE network side, and In view of RN is also required to a stable working condition, the frequent cell reselection that executes can carry out larger negative shadow to Netowrk tape It rings, moreover, in real network, the period of change of the tidal effect of load is also long, therefore, method provided by the invention It is long to execute the period.
In RN provided by the invention, the module of remote-controllable or automatic rotable antenna can also be set, in each RN weights After new selection DeNB, which can control antenna and rotate automatically, be automatically rotated to the maximum direction of signal strength for receiving DeNB Stop, further improving the return link performance between RN and DeNB, improve the transmission performance of RN.
Fig. 7 is one structural schematic diagram of system of the donor cell base station of selection relay node provided in an embodiment of the present invention, Including：RN and target DeNB, wherein
RN, for being held according to the data for the multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively Relevant information is measured, and being detected with multiple neighbor base station return link channel quality information, calculates separately multiple neighbour After return link available channel capacity between area base station and RN, the selection wherein maximum adjacent area of return link available channel capacity Target DeNB access of the base station as RN；
Target DeNB, for accessing RN.
Within the system, further include former DeNB, for obtaining the corresponding multiple neighbor base station identification informations received respectively Neighbor base station data capacity relevant information, be sent to RN；
RN, the multiple neighbor base stations for being additionally operable to send the signal strength requirement for meeting RN transmission datas to former DeNB identify letter Breath receives the data capacity relevant information of the multiple neighbor base stations for the signal strength requirement for meeting RN transmission datas from former DeNB, Before accessing target DeNB, the connection between original DeNB is disconnected.
Fig. 8 is RN structural schematic diagrams provided in an embodiment of the present invention, that is, RN, including：Computing module, selecting module and AM access module, wherein
Computing module, for according to the multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively Data capacity relevant information, and it is being detected with multiple neighbor base station return link channel quality information, calculate separately this Return link available channel capacity between multiple neighbor base stations and RN；
Selecting module, for selecting wherein target of the maximum neighbor base station of return link available channel capacity as RN DeNB；
AM access module, for accessing target DeNB.
In the apparatus, RN further includes transceiver module, for sending the signal strength for meeting RN transmission datas to former DeNB It is required that multiple neighbor base station identification informations, from former DeNB receive meet RN transmission datas signal strength requirement multiple adjacent areas The data capacity relevant information of base station；
AM access module is additionally operable to before accessing target DeNB, disconnects the connection between original DeNB.
Fig. 9 is two structural schematic diagram of system of the donor cell base station of selection relay node provided in an embodiment of the present invention, Including：RN, original DeNB and target DeNB, wherein
RN, multiple neighbor base station identification informations for sending the signal strength requirement for meeting RN transmission datas to former DeNB And the return link channel quality information between RN；Under the instruction of former DeNB, the connection between original DeNB, access are disconnected The target DeNB of corresponding target DeNB identification informations；
Former DeNB, for the number according to the multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively According to the return link channel quality information with multiple neighbor base station that capacity relevant information and RN are sent, it is more to calculate separately this After return link available channel capacity between a neighbor base station and RN, select wherein return link available channel capacity maximum Target DeNB identification informations are sent to RN, instruction RN access targets DeNB by target DeNB of the neighbor base station as RN；
Target DeNB, for accessing RN.
Figure 10 is two schematic diagram of device of the donor cell base station of selection relay node provided in an embodiment of the present invention, also It is former DeNB, including acquisition module, computing module, selecting module and indicating module, wherein
Acquisition module, the data of multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively The return link channel quality information with multiple neighbor base station that capacity relevant information and RN are sent；
Computing module, for according to the multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively The return link channel quality information with multiple neighbor base station that data capacity relevant information and RN are sent, calculates separately this Return link available channel capacity between multiple neighbor base stations and RN；
Selecting module, for selecting wherein target of the maximum neighbor base station of return link available channel capacity as RN DeNB；
Indicating module is used to indicate RN and disconnects access, access target DeNB.
The present invention, which is can be seen that, from method, system and device provided by the invention has considered RN and neighbor base station The load information of return link channel quality and neighbor base station, the DeNB of adaptively selected RN so that returning between RN and DeNB It passes link available channel capacity to maximize, to significantly improve the transmission performance of RN, be effectively utilized in LTE network current Idling-resource.
It is above to lift preferred embodiment, the object, technical solutions and advantages of the present invention are had been further described, institute It should be understood that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not intended to limit the invention, it is all the present invention's Within spirit and principle, made by all any modification, equivalent and improvement etc., should be included in protection scope of the present invention it It is interior.

Claims (13)

1. a kind of method of the donor cell base station of selection relay node, which is characterized in that this method includes：
The data capacity for obtaining the multiple neighbor base stations for the signal strength requirement for meeting relay node RN transmission datas respectively is related Information；
The return link channel quality information of RN and multiple neighbor base station are obtained respectively；
According to the data capacity relevant information of acquired multiple neighbor base station and corresponding return link channel quality information, Calculate separately the return link available channel capacity between multiple neighbor base station and RN；
The wherein maximum neighbor base station of return link available channel capacity is selected to be accessed as the donor cell base station DeNB of RN；
The signal strength of the transmission data is the total reference signal access power RSRP and interference information of LTE network, or reference Signal receiving quality RSRQ；
The data capacity information includes that the Un of the return link between the load information and neighbor base station and RN of neighbor base station connects Mouth configuration information；
The return link available channel capacity between multiple neighbor base station and RN is calculated separately using formula (1)：
Ci=f (SINRi, 1-Ti, configi) formula (1)；
Wherein, CiIdentify the return link available channel capacity between i-th of neighbor base station and RN；SINRiIdentify i-th of adjacent area The signal-to-noise ratio of return link between base station and RN, TiIt is the load information of i-th of neighbor base station, configiFor i-th of adjacent area The Un interface configuration informations of return link between base station and RN；F () is indicated and SINRi、1-TiAnd configiRelevant letter Number.
2. the method as described in claim 1, which is characterized in that the method is executed by RN, before the process per se, further includes：
RN accesses original DeNB, detects the signal strength of neighbor base station, by the signal strength with the measurement thresholding more than setting Neighbor base station identification information is sent to former DeNB；
RN obtains the data capacity correlation letter of the multiple neighbor base stations for the signal strength requirement for meeting RN transmission datas from former DeNB Breath is：
RN obtains the data capacity relevant information of the neighbor base station of corresponding neighbor base station identification information from former DeNB, described corresponding adjacent The data capacity relevant information of the neighbor base station of area's base station identification information is former DeNB from LTE network side or corresponds to neighbor base station mark What the neighbor base station of knowledge information was got；
It is described to select DeNB for target DeNB；
Before the RN access targets DeNB, further include：Disconnect the connection between original DeNB.
3. the method as described in claim 1, which is characterized in that the method is executed by RN, before the process per se, further includes：
RN detects the signal strength of neighbor base station, and the signal strength with the measurement thresholding more than setting is saved as relaying is met Multiple neighbor base stations of the signal strength of point RN transmission datas, are sequentially ingressed into.
4. method as claimed in claim 2 or claim 3, which is characterized in that the signal strength of the transmission data is that LTE network is total RSRP and interference information or RSRQ；
The data capacity information includes that the Un of the return link between the load information and neighbor base station and RN of neighbor base station connects Mouth configuration information；
The return link available channel capacity between multiple neighbor base station and RN is calculated separately using formula (2)：Ci=g (SINRi)*min(configi, (1-Ti) * DN), formula (2)；
Wherein, g () is the frequency spectrum according to the corresponding each time slot of the signal-to-noise ratio of the return link between i-th of neighbor base station and RN Efficiency or handling capacity；TiIt is the load information of i-th of neighbor base station；DN be i-th neighbor base station current time slots configuration under The number of row time slot；configiIndicate the number of the return link descending time slot in the Un interface configuration informations of RN.
5. the method as described in claim 1, which is characterized in that the method is executed by the former DeNB that RN is accessed, in this method Before, further include：
Former DeNB receives the neighbor base station identification information of the signal strength with the measurement thresholding more than setting of RN transmissions, and With the return link channel quality information of neighbor base station；
Former DeNB obtains the data capacity correlation letter of the multiple neighbor base stations for the signal strength requirement for meeting RN transmission datas from RN Breath is：
Former DeNB obtains corresponding neighbor base station mark letter from LTE network side or the neighbor base station of corresponding neighbor base station identification information The data capacity relevant information of the neighbor base station of breath；
It is described to select DeNB for target DeNB；
Before the access target DeNB, further include：Former DeNB instructions RN disconnects the connection between original DeNB, instruction RN accesses Target DeNB.
6. method as claimed in claim 5, which is characterized in that the signal strength of the transmission data is that LTE network is total RSRP and interference information or RSRQ；
The data capacity information includes that the Un of the return link between the load information and neighbor base station and RN of neighbor base station connects Mouth configuration information；
The return link available channel capacity between multiple neighbor base station and RN is calculated separately using formula (3)：
Ci=g (MRi)*min(configi, (1-Ti) * DN), formula (3)；
Wherein, MRiIt is the return link channel quality information between RN and i-th of neighbor base station, the g () that RN is reported is according to The spectrum efficiency or handling capacity of the corresponding each time slot of return link channel quality information between i neighbor base station and RN；Ti It is the load information of i-th of neighbor base station；DN is the number of descending time slot during the current time slots of i-th of neighbor base station configure； configiWhen indicating the return link downlink in the Un interface configuration informations of the return link between RN and i-th of neighbor base station The number of gap.
7. the method as described in claim 1, which is characterized in that this method further includes：Remote-controllable or automatic rotation is arranged in RN Antenna function, select DeNB access after, the antenna of function control RN rotates automatically, be automatically rotated to receive DeNB signal it is strong Spend maximum direction.
8. a kind of system of the donor cell base station of selection relay node using claim 1 the method, which is characterized in that The system includes：RN and target DeNB, wherein
RN, for the data capacity phase according to the multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively Information is closed, and being detected with multiple neighbor base station return link channel quality information, calculates separately multiple adjacent area base After the return link available channel capacity stood between RN, the selection wherein maximum neighbor base station of return link available channel capacity Target DeNB accesses as RN；
Target DeNB, for accessing RN.
9. system as claimed in claim 8, which is characterized in that the system also includes former DeNB, are corresponded to for obtaining respectively The data capacity relevant information of the neighbor base station of the multiple neighbor base station identification informations received, is sent to RN；
RN is additionally operable to send the multiple neighbor base station identification informations for the signal strength requirement for meeting RN transmission datas to former DeNB, The data capacity relevant information that the multiple neighbor base stations for the signal strength requirement for meeting RN transmission datas are received from former DeNB, is connecing Before entering target DeNB, the connection between original DeNB is disconnected.
10. a kind of device of the donor cell base station of selection relay node using claim 1 the method, feature exist In the device includes：Computing module, selecting module and AM access module, wherein
Computing module, for the data according to the multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively Capacity relevant information, and it is being detected with multiple neighbor base station return link channel quality information, it calculates separately multiple Return link available channel capacity between neighbor base station and RN；
Selecting module, for selecting wherein target DeNB of the maximum neighbor base station of return link available channel capacity as RN；
AM access module, for accessing target DeNB.
11. device as claimed in claim 10, which is characterized in that the device further includes transceiver module, for being sent out to former DeNB The multiple neighbor base station identification informations for sending the signal strength requirement for meeting RN transmission datas meet RN from former DeNB receptions and transmit number According to signal strength requirement multiple neighbor base stations data capacity relevant information；
AM access module is additionally operable to before accessing target DeNB, disconnects the connection between original DeNB.
12. a kind of system of the donor cell base station of selection relay node using claim 1 the method, feature exist In, including：RN, original DeNB and target DeNB, wherein
RN, for former DeNB send meet RN transmission datas signal strength requirement multiple neighbor base station identification informations and with Return link channel quality information between RN；Under the instruction of former DeNB, the connection between original DeNB is disconnected, access corresponds to The target DeNB of target DeNB identification informations；
Former DeNB, for being held according to the data for the multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively The return link channel quality information with multiple neighbor base station for measuring relevant information and RN transmissions, calculates separately multiple neighbour After return link available channel capacity between area base station and RN, the selection wherein maximum adjacent area of return link available channel capacity Target DeNB identification informations are sent to RN, instruction RN access targets DeNB by target DeNB of the base station as RN；
Target DeNB, for accessing RN.
13. a kind of device of the donor cell base station of selection relay node using claim 1 the method, feature exist In, including acquisition module, computing module, selecting module and indicating module, wherein
Acquisition module, the data capacity of multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively The return link channel quality information with multiple neighbor base station that relevant information and RN are sent；
Computing module, for the data according to the multiple neighbor base stations for obtaining the signal strength requirement for meeting RN transmission datas respectively The return link channel quality information with multiple neighbor base station that capacity relevant information and RN are sent, calculates separately multiple Return link available channel capacity between neighbor base station and RN；
Selecting module, for selecting wherein target DeNB of the maximum neighbor base station of return link available channel capacity as RN；
Indicating module is used to indicate RN and disconnects access, access target DeNB.
CN201310435008.6A 2013-09-23 2013-09-23 Select the method, system and device of the donor cell base station of relay node Active CN104469891B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310435008.6A CN104469891B (en) 2013-09-23 2013-09-23 Select the method, system and device of the donor cell base station of relay node

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310435008.6A CN104469891B (en) 2013-09-23 2013-09-23 Select the method, system and device of the donor cell base station of relay node

Publications (2)

Publication Number Publication Date
CN104469891A CN104469891A (en) 2015-03-25
CN104469891B true CN104469891B (en) 2018-10-12

Family

ID=52915076

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310435008.6A Active CN104469891B (en) 2013-09-23 2013-09-23 Select the method, system and device of the donor cell base station of relay node

Country Status (1)

Country Link
CN (1) CN104469891B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106550412B (en) * 2015-09-21 2021-06-29 索尼公司 Electronic device and wireless communication method in wireless communication system
CN107801225A (en) * 2016-09-06 2018-03-13 中兴通讯股份有限公司 A kind of wireless uplink passage determines method and apparatus
US11102785B2 (en) 2017-10-12 2021-08-24 Airspan Ip Holdco Llc Apparatus and method selecting a base station in a network
US10708854B2 (en) * 2017-10-12 2020-07-07 Airspan Networks Inc. Apparatus and method for providing network configurability in a wireless network
US10616824B2 (en) 2017-11-03 2020-04-07 Airspan Networks Inc. Apparatus and method for providing network configurability in a wireless network
CN109451836B (en) * 2018-04-23 2022-05-17 北京小米移动软件有限公司 Method and device for recovering and establishing wireless backhaul link
JP7370986B2 (en) * 2018-08-23 2023-10-30 株式会社Ｎｔｔドコモ Nodes, wireless communication methods and systems
US20210400660A1 (en) * 2018-11-14 2021-12-23 Apple Inc. Iab mt signaling of released resources
JP7257274B2 (en) * 2019-06-27 2023-04-13 本田技研工業株式会社 Communication system, program, and information processing method
CN113364639B (en) * 2020-03-03 2023-09-08 成都鼎桥通信技术有限公司 Method, system and device for switching transmission links of small station
CN115707149A (en) * 2021-08-04 2023-02-17 华为技术有限公司 Communication method and communication device
CN113891354B (en) * 2021-09-15 2022-07-12 珠海格力电器股份有限公司 method, device, equipment and storage medium for updating mesh network

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102098723A (en) * 2011-02-12 2011-06-15 大唐移动通信设备有限公司 Method and device for allocating donor base station or donor cell for mobile relay node
WO2011082522A1 (en) * 2010-01-06 2011-07-14 上海贝尔股份有限公司 Method and device for service switching in wireless relay network
CN102281598A (en) * 2010-06-08 2011-12-14 常州碳石通信技术有限公司 Method for avoiding handover request being refused after adding relay into LTE-A (Long Term Evolution-Advanced)
WO2013013638A1 (en) * 2011-07-27 2013-01-31 华为技术有限公司 Method, relay node, donor base station and communication system for mobile load balance processing

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9210622B2 (en) * 2009-08-12 2015-12-08 Qualcomm Incorporated Method and apparatus for relay backhaul design in a wireless communication system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011082522A1 (en) * 2010-01-06 2011-07-14 上海贝尔股份有限公司 Method and device for service switching in wireless relay network
CN102281598A (en) * 2010-06-08 2011-12-14 常州碳石通信技术有限公司 Method for avoiding handover request being refused after adding relay into LTE-A (Long Term Evolution-Advanced)
CN102098723A (en) * 2011-02-12 2011-06-15 大唐移动通信设备有限公司 Method and device for allocating donor base station or donor cell for mobile relay node
WO2013013638A1 (en) * 2011-07-27 2013-01-31 华为技术有限公司 Method, relay node, donor base station and communication system for mobile load balance processing

Also Published As

Publication number Publication date
CN104469891A (en) 2015-03-25

Similar Documents

Publication Publication Date Title
CN104469891B (en) Select the method, system and device of the donor cell base station of relay node
JP6147773B2 (en) Mobile device location classification to adjust femtocell parameters
US20230038533A1 (en) Beam management of a layer-1 millimeter wave repeater using wideband signal
EP2826273B1 (en) Method and system for femtocell channel selection
US8903397B2 (en) Neighbor cell list automatic configuration apparatus and method for self-organizing network and mobile telecommunication system for the same
CN102934496B (en) Cell searching in heterogeneous network and measurement
US20130084892A1 (en) Methods and Arrangements for Proximity Detection
US20140004850A1 (en) Apparatus and method for controlling paging in heterogeneous wireless network system
EP2716129B1 (en) Carrier aggregation support for home base stations
CN108566682A (en) Measurement in radio circuit and report configuration
KR20140005297A (en) Methods for synchronizing macro cell and small cell systems
CN103797865A (en) A wireless device, a network node and methods therein
CN104349330A (en) Method, system and equipment for assisting multi-mode terminal in finding communication chance
US20120082047A1 (en) User equipment measurement for interference management in heterogeneous networks with femto cells
CN109691176A (en) Support to include the mobility pattern based on uplink, the mobility pattern based on downlink and the mobility pattern set for mixing mobility pattern based on synchronous and reference down link signal
CN110192356A (en) Event triggering and report under multiple reference signals
CN104885509A (en) Method and apparatus for a hybrid node in a cellular wireless communication system
CN106576317B (en) Small base station and communication control method thereof
CN109923895A (en) Network node and the method for establishing neighbor node relationship within network nodes
KR20120110841A (en) Apparatus and method for transmitting inter-heterogeneous cell interference coordination information
CN109565730A (en) Mobile management based on uplink measurement
CN108353328A (en) Adaptive cell search especially in the case where spreading over
CN107135527A (en) A kind of method for transmitting signals, terminal and network side equipment
US9622193B2 (en) Method and system for reducing co-channel interference due to the deployment of femtocells in a macro-cellular network
JP6301186B2 (en) Cell selection method, base station, and radio communication system

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant