CN101959203A - Wireless communication method of LTE (Long Term Evolution) network comprising macro cell base station and home base station - Google Patents

Wireless communication method of LTE (Long Term Evolution) network comprising macro cell base station and home base station Download PDF

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Publication number
CN101959203A
CN101959203A CN 201010503274 CN201010503274A CN101959203A CN 101959203 A CN101959203 A CN 101959203A CN 201010503274 CN201010503274 CN 201010503274 CN 201010503274 A CN201010503274 A CN 201010503274A CN 101959203 A CN101959203 A CN 101959203A
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base station
home
user group
mobile device
closed user
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CN 201010503274
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CN101959203B (en
Inventor
李云洲
赵熠飞
张艳
肖立民
许希斌
王京
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Tsinghua University
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Tsinghua University
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Abstract

The invention comprises a wireless communication method of an LTE (Long Term Evolution) network comprising a macro cell base station and a home base station. According to the characteristics of the home base station, i.e. the characteristics of allowing public access or partially allowing the public access or only allowing to close the access of user set equipment as well as the specific circumstance of entered mobile equipment in a coverage area of the home base station, the interference of the home base station to the mobile equipment connected to the macro cell base station in a down link is reduced by adopting a mode of whether to close the user set equipment or not according to the condition whether the mobile equipment is in an activated state or not so as to improve the wireless communication quality of the mobile equipment connected to the macro cell base station in the coverage area of the home base station.

Description

The LTE network wireless communication means that comprises macrocell base stations and base station from home
Technical field
The invention belongs to a kind of network wireless communication means, be specifically related to a kind of LTE network wireless communication means that comprises macrocell base stations and base station from home.
Background technology
In comprising the LTE network of macrocell base stations, dispose base station from home and can effectively improve the indoor signal covering, improve QoS of customer, increase network capacity.Base station from home is a kind of small-sized low power base station, is generally used for indoor places such as family, office space, market, hotel.
It is simple that base station from home has access, plug and play, the characteristics that the user can dispose voluntarily, just because of these characteristics, the real-time change that has caused network topology structure on the other hand, be accompanied by a large amount of uses of base station from home like this, by the method coordination solution base station from home of legacy network planning and the method for the mutual interference mutually of the equipment that is connected to macrocell base stations, because workload is huge and infeasible.
At present for the down link of the radio communication of the network that comprises macrocell base stations and base station from home, promptly from the wireless transmission direction of base station from home to this base station coverage area, majority relates to known method that frequency band reuses, and to need base station from home be public visit, but also there is not method effectively to solve in the base station from home down link now, to the interference problem of the non-closed user group mobile device that is connected to macrocell base stations that enters this base station from home coverage.
Summary of the invention
In order to overcome the deficiency that above-mentioned prior art exists, the object of the present invention is to provide a kind of LTE network wireless communication means that comprises macrocell base stations and base station from home, by feature according to base station from home, promptly allow the open feature of visiting or partly allowing open visit or only allow the closed user group device access, and the concrete condition of the mobile device of the base station from home coverage that enters, whether be in state of activation according to this mobile device, whether be the concrete condition of closed user group equipment, reduce the interference of base station from home in the down link in different ways, improve the radio communication quality of the mobile device that is connected to macrocell base stations in the family expenses base station range the mobile device that is connected to macrocell base stations.
In order to achieve the above object, the technical solution adopted in the present invention is:
A kind of LTE network wireless communication means that comprises macrocell base stations and base station from home:
Step 1: if the base station from home group exists part to allow the base station from home HeNB2 of open visit, then be that non-closed user group mobile device ME1 sets restrictive condition in advance, in the traffic peak that this restrictive condition relates to the maximum number of user amount that allow to insert part and allow the base station from home HeNB2 of open visit, allow simultaneous maximum activation number of users, permission one or multinomial, promptly when satisfying this restrictive condition, the interior subscriber equipment of non-closed user group that allows to be in idle condition is connected to this base station from home;
Step 2: carry out initialization when the base station from home of family expenses group of base stations powers on, be linked into to be connected into comprise the LTE network of macrocell base stations eNB1 the time, if base station from home is only to allow the base station from home HeNB1 of closed user group device access and the base station from home HeNB2 that part allows open visit, and macrocell base stations eNB 1 has preestablished the sub-carrier frequencies scope of dodging, and then these base station from home obtain this and dodge the sub-carrier frequencies scope;
Step 3: when the family expenses base station detects non-closed user group mobile device ME1 and enters in its coverage, for the base station from home HeNB1 that only allows the closed user group device access, if not closed user group mobile device ME1 is in idle condition, the scope of dodging of the local emission band of this base station from home HeNB1 that only allows the closed user group device access then is set, this dodges the pairing resource element of public information of keeping the normal access of idle mobile device that scope sends for macrocell base stations eNB1, if not closed user group mobile device ME1 is in state of activation, the scope of dodging of the local emission band of this base station from home HeNB1 that only allows the closed user group device access is set, this dodges public information and the corresponding resource element of service dispatching control information of keeping the normal access of mobile device that scope comprises that macrocell base stations eNB1 sends, and the described sub-carrier frequencies scope of dodging, if this base station from home is the base station from home HeNB2 that part allows open visit, if not closed user group mobile device ME1 is in idle condition, part allows the base station from home HeNB2 of open visit that non-closed user group mobile device ME1 is switched and inserts the base station from home HeNB2 that part allows open visit, if not and closed user group mobile device ME1 is in state of activation, the scope of dodging that this part allows the local emission band of the open base station from home HeNB2 that visits is set, this dodges public information and the corresponding resource element of service dispatching control information of keeping the normal access of mobile device that scope comprises that macrocell base stations eNB1 sends, and the described sub-carrier frequencies scope of dodging, be in from the idle condition state as if the non-closed user group mobile device ME1 that has been connected to the open base station from home HeNB2 that visits of part permission again and enter state of activation, promptly part allows the base station from home HeNB2 of open visit to receive the service dispatching request of non-closed user group mobile device ME1, then non-closed user group mobile device ME1 is switched to macrocell base stations eNB 1, the scope of dodging that this part allows the local emission band of the open base station from home HeNB2 that visits is set simultaneously, this dodges public information and the corresponding resource element of service dispatching control information of keeping the normal access of mobile device that scope comprises that macrocell base stations eNB1 sends, and the described sub-carrier frequencies scope of dodging.If this base station from home is the base station from home HeNB3 that allows open visit, non-closed user group mobile device ME1 is switched the base station from home HeNB3 that accesses to the open visit of permission.
In the described step 2 base station from home is powered on when carrying out initialization, if this base station from home is only to allow the base station from home HeNB1 of closed user group device access and the base station from home HeNB2 that part allows open visit, by macrocell base stations eNB1 pilot tone being intercepted or Control Node is unified regulative mode, adjust the position on the initial border of time domain of the radio frames of launching this sub-district, the resource element position of the interior system information correspondence of base station from home emission band that makes the base station from home that only allows the closed user group device access or partly allow open visit and the resource element position non-overlapping of the interior system information correspondence of macrocell base stations eNB1 emission band.
The base station from home HeNB3 that described permission is openly visited, when the non-closed user group mobile device ME1 of access exceeds the quantity of the base station from home HeNB3 permission access that allows open visit, by reducing the base station from home HeNB3 transmitting power that allows open visit, to reduce to allow the base station from home HeNB3 coverage of open visit, make the equipment that is positioned at the base station from home HeNB3 edge that allows open visit switch to macrocell base stations eNB1, in the access customer number amount of HeNB3 maintains the quantitative range that permission inserts.
The described subcarrier of sub-carrier frequencies scope of dodging is for that disperse or continuous.
A kind of LTE network wireless communication means that comprises macrocell base stations eNB1 and base station from home of the present invention, by feature according to base station from home, promptly allow the open feature of visiting or partly allowing open visit or only allow the closed user group device access, and the concrete condition of the mobile device of the base station from home coverage that enters, whether be in state of activation according to this mobile device and adopt the mode of closed user group equipment whether to reduce the interference of base station from home in the down link, improve the radio communication quality of the mobile device that is connected to macrocell base stations in the family expenses base station range the mobile device that is connected to macrocell base stations.
Description of drawings
Accompanying drawing is a work schematic diagram of the present invention, the coverage of wherein outmost ellipse representation macrocell base stations eNB1, the outer interior ellipse representation of HeNB1 only allows the coverage of the base station from home HeNB1 of closed user group device access, the outer interior ellipse representation of HeNB2 partly allows the coverage of the base station from home HeNB2 of open visit, the outer interior ellipse representation of HeNB3 allows the coverage of the base station from home HeNB2 of open visit, and ME1 represents non-closed user group mobile device.
Embodiment
The present invention will be described in more detail below in conjunction with drawings and Examples.
A kind of LTE network wireless communication means that comprises macrocell base stations and base station from home:
Step 1: if the base station from home group exists part to allow the base station from home HeNB2 of open visit, then be that non-closed user group mobile device ME1 sets restrictive condition in advance, in the traffic peak that this restrictive condition relates to the maximum number of user amount that allow to insert part and allow the base station from home HeNB2 of open visit, allow simultaneous maximum activation number of users, permission one or multinomial, promptly when satisfying this restrictive condition, the interior subscriber equipment of non-closed user group that allows to be in idle condition is connected to this base station from home;
Step 2: carry out initialization when the base station from home of family expenses group of base stations powers on, be linked into to be connected into comprise the LTE network of macrocell base stations eNB1 the time, if base station from home is only to allow the base station from home HeNB1 of closed user group device access and the base station from home HeNB2 that part allows open visit, and macrocell base stations eNB 1 has preestablished the sub-carrier frequencies scope of dodging, and then these base station from home obtain this and dodge the sub-carrier frequencies scope;
Step 3: when the family expenses base station detects non-closed user group mobile device ME1 and enters in its coverage, for the base station from home HeNB1 that only allows the closed user group device access, if not closed user group mobile device ME1 is in idle condition, the scope of dodging of the local emission band of this base station from home HeNB1 that only allows the closed user group device access then is set, this dodges the pairing resource element of public information of keeping the normal access of idle mobile device that scope sends for macrocell base stations eNB1, with guarantee non-closed user group mobile device ME1 can intercept the pilot tone of macrocell base stations eNB1 smoothly and keep and macrocell base stations eNB1 between wireless connections, if not closed user group mobile device ME1 is in state of activation, the scope of dodging of the local emission band of this base station from home HeNB1 that only allows the closed user group device access is set, this dodges public information and the corresponding resource element of service dispatching control information of keeping the normal access of mobile device that scope comprises that macrocell base stations eNB1 sends, and the described sub-carrier frequencies scope of dodging, so just can guarantee not disturbed normally the carrying out of downlink traffic, if this base station from home is the base station from home HeNB2 that part allows open visit, if not closed user group mobile device ME1 is in idle condition, part allows the base station from home HeNB2 of open visit that non-closed user group mobile device ME1 is switched and inserts the base station from home HeNB2 that part allows open visit, if not and closed user group mobile device ME1 is in state of activation, the scope of dodging that this part allows the local emission band of the open base station from home HeNB2 that visits is set, this dodges public information and the corresponding resource element of service dispatching control information of keeping the normal access of mobile device that scope comprises that macrocell base stations eNB1 sends, and the described sub-carrier frequencies scope of dodging, be in from the idle condition state as if the non-closed user group mobile device ME1 that has been connected to the open base station from home HeNB2 that visits of part permission again and enter state of activation, promptly part allows the base station from home HeNB2 of open visit to receive the service dispatching request of non-closed user group mobile device ME1, then non-closed user group mobile device ME1 is switched to macrocell base stations eNB1, the scope of dodging that this part allows the local emission band of the open base station from home HeNB2 that visits is set simultaneously, this dodges public information and the corresponding resource element of service dispatching control information of keeping the normal access of mobile device that scope comprises that macrocell base stations eNB1 sends, and the described sub-carrier frequencies scope of dodging.If this base station from home is the base station from home HeNB3 that allows open visit, non-closed user group mobile device ME1 is switched the base station from home HeNB3 that accesses to the open visit of permission.
In the described step 2 base station from home is powered on when carrying out initialization, if this base station from home is only to allow the base station from home HeNB1 of closed user group device access and the base station from home HeNB2 that part allows open visit, by macrocell base stations eNB1 pilot tone being intercepted or Control Node is unified regulative mode, adjust the position on the initial border of time domain of the radio frames of launching this sub-district, make the base station from home HeNB1 that only allows the closed user group device access or part allow the resource element position non-overlapping of system information correspondence in the resource element position of system information correspondence in the base station from home HeNB2 emission band of open visit and the macrocell base stations eNB1 emission band, can maintain the normal use of the equipment that is connected to macrocell base stations eNB1 in its coverage by dodging mode to guarantee only to allow the base station from home HeNB1 of closed user group device access and base station from home HeNB2 that part allows open visit.
The base station from home HeNB3 that described permission is openly visited, when the non-closed user group mobile device ME1 of access exceeds the quantity of the base station from home HeNB3 permission access that allows open visit, by reducing the base station from home HeNB3 transmitting power that allows open visit, to reduce to allow the base station from home HeNB3 coverage of open visit, make the equipment that is positioned at the base station from home HeNB3 edge that allows open visit switch to macrocell base stations eNB1, access customer number amount up to HeNB3 maintains in the quantitative range of permission access, has so further avoided interference.
Described subcarrier of dodging the sub-carrier frequencies scope can guarantee the accuracy of signal transmission like this for that disperse or continuous.
A kind of LTE network wireless communication means that comprises macrocell base stations eNB1 and base station from home of the present invention, by feature according to base station from home, promptly allow the open feature of visiting or partly allowing open visit or only allow the closed user group device access, and the concrete condition of the mobile device of the base station from home coverage that enters, whether be in state of activation according to this mobile device and adopt the mode of closed user group equipment whether to reduce the interference of base station from home in the down link, improve the radio communication quality of the mobile device that is connected to macrocell base stations in the family expenses base station range the mobile device that is connected to macrocell base stations.

Claims (4)

1. LTE network wireless communication means that comprises macrocell base stations and base station from home is characterized in that:
Step 1: if the base station from home group exists part to allow the base station from home HeNB2 of open visit, then be that non-closed user group mobile device ME1 sets restrictive condition in advance, in the traffic peak that this restrictive condition relates to the maximum number of user amount that allow to insert part and allow the base station from home HeNB2 of open visit, allow simultaneous maximum activation number of users, permission one or multinomial, promptly when satisfying this restrictive condition, the interior subscriber equipment of non-closed user group that allows to be in idle condition is connected to this base station from home;
Step 2: carry out initialization when the base station from home of family expenses group of base stations powers on, be linked into to be connected into comprise the LTE network of macrocell base stations eNB1 the time, if base station from home is only to allow the base station from home HeNB1 of closed user group device access and the base station from home HeNB2 that part allows open visit, and macrocell base stations eNB 1 has preestablished the sub-carrier frequencies scope of dodging, and then these base station from home obtain this and dodge the sub-carrier frequencies scope;
Step 3: when the family expenses base station detects non-closed user group mobile device ME1 and enters in its coverage, for the base station from home HeNB1 that only allows the closed user group device access, if not closed user group mobile device ME1 is in idle condition, the scope of dodging of the local emission band of this base station from home HeNB1 that only allows the closed user group device access then is set, this dodges the pairing resource element of public information of keeping the normal access of idle mobile device that scope sends for macrocell base stations eNB1, if not closed user group mobile device ME1 is in state of activation, the scope of dodging of the local emission band of this base station from home HeNB1 that only allows the closed user group device access is set, this dodges public information and the corresponding resource element of service dispatching control information of keeping the normal access of mobile device that scope comprises that macrocell base stations eNB1 sends, and the described sub-carrier frequencies scope of dodging, if this base station from home is the base station from home HeNB2 that part allows open visit, if not closed user group mobile device ME1 is in idle condition, part allows the base station from home HeNB2 of open visit that non-closed user group mobile device ME1 is switched and inserts the base station from home HeNB2 that part allows open visit, if not and closed user group mobile device ME1 is in state of activation, the scope of dodging that this part allows the local emission band of the open base station from home HeNB2 that visits is set, this dodges public information and the corresponding resource element of service dispatching control information of keeping the normal access of mobile device that scope comprises that macrocell base stations eNB1 sends, and the described sub-carrier frequencies scope of dodging, be in from the idle condition state as if the non-closed user group mobile device ME1 that has been connected to the open base station from home HeNB2 that visits of part permission again and enter state of activation, promptly part allows the base station from home HeNB2 of open visit to receive the service dispatching request of non-closed user group mobile device ME1, then non-closed user group mobile device ME1 is switched to macrocell base stations eNB1, the scope of dodging that this part allows the local emission band of the open base station from home HeNB2 that visits is set simultaneously, this dodges public information and the corresponding resource element of service dispatching control information of keeping the normal access of mobile device that scope comprises that macrocell base stations eNB1 sends, and the described sub-carrier frequencies scope of dodging.If this base station from home is the base station from home HeNB3 that allows open visit, non-closed user group mobile device ME1 is switched the base station from home HeNB3 that accesses to the open visit of permission.
2. the LTE network wireless communication means that comprises macrocell base stations and base station from home according to claim 1, it is characterized in that: in the described step 2 base station from home is powered on when carrying out initialization, if this base station from home is only to allow the base station from home HeNB1 of closed user group device access and the base station from home HeNB2 that part allows open visit, by macrocell base stations eNB1 pilot tone being intercepted or Control Node is unified regulative mode, adjust the position on the initial border of time domain of the radio frames of launching this sub-district, the resource element position of the interior system information correspondence of base station from home emission band that makes the base station from home that only allows the closed user group device access or partly allow open visit and the resource element position non-overlapping of the interior system information correspondence of macrocell base stations eNB1 emission band.
3. according to claim 1 or the described LTE network wireless communication means that comprises macrocell base stations and base station from home of claim 2, it is characterized in that: the base station from home HeNB3 that described permission is openly visited, when the non-closed user group mobile device ME1 of access exceeds the quantity of the base station from home HeNB3 permission access that allows open visit, by reducing the base station from home HeNB3 transmitting power that allows open visit, to reduce to allow the base station from home HeNB3 coverage of open visit, make the equipment that is positioned at the base station from home HeNB3 edge that allows open visit switch to macrocell base stations eNB1, in the access customer number amount of HeNB3 maintains the quantitative range that permission inserts.
4. according to claim 1 or the described LTE network wireless communication means that comprises macrocell base stations and base station from home of claim 2, it is characterized in that: the described subcarrier of sub-carrier frequencies scope of dodging is for that disperse or continuous.
CN201010503274A 2010-10-11 2010-10-11 Wireless communication method of LTE (Long Term Evolution) network comprising macro cell base station and home base station Expired - Fee Related CN101959203B (en)

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