CN102958071A - Method and device for realizing communication between base stations - Google Patents
Method and device for realizing communication between base stations Download PDFInfo
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- CN102958071A CN102958071A CN2011102546736A CN201110254673A CN102958071A CN 102958071 A CN102958071 A CN 102958071A CN 2011102546736 A CN2011102546736 A CN 2011102546736A CN 201110254673 A CN201110254673 A CN 201110254673A CN 102958071 A CN102958071 A CN 102958071A
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Abstract
The invention provides a method and a device for realizing communication between base stations. Edge UE (User Equipment) is introduced as a relay to realize wireless communication between the two base stations. With the adoption of the method and the device, the great cost expense caused by the reason that a wired network is paved for carrying out communication can be effectively avoided.
Description
Technical field
The present invention relates to mobile communication technology, particularly relate to a kind of method and apparatus of realizing communication between base station (eNodeB).
Background technology
In mobile communication system, mainly be the intercommunication that realizes message by wireline interface between the eNodeB.The cable network transmission can guarantee reliability and the validity of transfer of data, but the cost expense that is equipped with spider lines is very large.Especially in more remote area, radius of society is very large, need more cost to set up cable network, and in actual applications, the communication requirement of remote districts is fewer again.
This shows, for remote districts, traditional cable network that utilizes is realized the method for inter base station communication, can cause the serious waste of resource.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of method and apparatus of realizing inter base station communication, can effectively save network construction cost.
In order to achieve the above object, the technical scheme of the present invention's proposition is:
A kind of method that realizes inter base station communication, the method may further comprise the steps:
A, in the common fringe region that covers of two adjacent base stations of needs communication, a user UE1 who is used for relaying is set in advance, and adopts the mode of interference coordination that described UE1 is connected with described two adjacent base stations respectively;
B, when needing to communicate by letter between the described base station, the base station that need to send data will be notified to UE1 be used to the schedule information that sends described data at the Ti of current k frame constantly, and the described data that will need to send in the Tj moment of k+1 frame send to described UE1;
C, described UE1 are at the T of k frame
i+ t
1Constantly begin to detect described schedule information, described t
1Be the propagation delay time between the near base station eNodeB 1 of UE1 and the described base station described UE1 of middle distance; Described UE1 according to respectively with the propagation delay time of described two adjacent base stations, determine described schedule information;
D, described UE1 are according to the described schedule information that receives, at the T of k+1 frame
j+ t
1Constantly begin downlink data receiving, described downlink data is converted into upstream data and preservation;
E, described UE1 be to the purpose base station requests ascending resource of described upstream data, and after the m frame detects corresponding dispatching downlink control information DCI, at the T of m+1 frame
z-(t
2+ toffset) constantly open up sendaisle, according to described scheduling DCI, described upstream data is sent to described purpose base station, wherein, at the T of m+1 frame
z-(t
2+ toffset) constantly and T
z-(t
1+ toffset) constantly between, the upstream data that the up subband that uses at eNodeB1 sends is 0, T
zReceive the benchmark moment of upstream data for default base station, t
2Be the propagation delay time between UE1 and the described base station described UE1 of the middle distance base station eNodeB 2 far away, toffset is default up lead; Described purpose base station is at the T of m+1 frame
zConstantly receive described upstream data.
A kind of device of realizing inter base station communication, this device are located in the common fringe region that covers of two adjacent base stations that need communication, and system adopts the mode of interference coordination that described device is connected with described two adjacent base stations respectively in advance, and this device comprises:
The schedule information monitoring modular is used for the T at current k frame
i+ t
1Constantly begin to detect schedule information, and according to the propagation delay time of described two adjacent base stations, determine the schedule information that each described base station sends, notice is to data receiver and modular converter and data transmission blocks, described t
1Be the propagation delay time between the near base station eNodeB 1 of described device and the described base station described device of middle distance, described T
iSend the benchmark moment of described schedule information for default base station side;
Data receiver and modular converter are used for according to described schedule information, at the T of k+1 frame
j+ t
1Constantly begin downlink data receiving, described downlink data is converted into upstream data, and the log-on data sending module;
Data transmission blocks is used for the purpose base station requests ascending resource to described upstream data, and after the m frame detects corresponding dispatching downlink control information DCI, at the T of m+1 frame
z-(t
2+ toffset) constantly open up sendaisle, according to described scheduling DCI, described upstream data is sent to described purpose base station, wherein, at the T of m+1 frame
z-(t
2+ toffset) constantly and T
z-(t
1+ toffset) constantly between, the upstream data that the up subband that uses at eNodeB1 sends is 0, T
zReceive the benchmark moment of upstream data for default base station, t
2Be the propagation delay time between UE1 and the described base station described UE1 of the middle distance base station eNodeB 2 far away, toffset is default up lead.
In sum, the method and apparatus of relaying between the base station (eNodeB) that the present invention proposes is introduced edge UE as relaying, can effectively realize the radio communication between two base stations, thereby effectively avoid being equipped with the larger cost expense that spider lines produces.
Description of drawings
Fig. 1 is the method flow schematic diagram of the embodiment of the invention one;
Fig. 2 is the apparatus structure schematic diagram of the embodiment of the invention one.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with the accompanying drawings and the specific embodiments.
Core concept of the present invention is, Cell Edge User is being adopted on the basis of interference coordination technique, utilize an edge user between two base stations to realize radio communication between two base stations, and this edge customer keeps communicating by letter with two base stations by the mode that frequency division utilizes, larger interference problem appears when avoiding communicating by letter with different base station, so, when guaranteeing communication quality, the larger cost expense that can effectively avoid wire communication to produce.
Fig. 1 is the schematic flow sheet of the embodiment of the invention one, and as shown in Figure 1, this embodiment may further comprise the steps:
Here, adopt the mode of interference coordination that described UE1 is connected with described two adjacent base stations respectively, so that two adjacent base stations and UE1 communicate employed band resource is different, like this, can guarantee that UE1 is independently with communicating by letter of two base stations respectively, does not exist interference.
Particularly, how to adopt the mode of interference coordination that described UE1 is connected with described two adjacent base stations respectively, by those skilled in the art are grasped, do not repeat them here.
Here need to prove T
iSending the fiducial time of schedule information for the base station of systemic presupposition, is identical for each base station.
In actual applications, because the distance of UE1 to two base station is different, corresponding propagation delay time is also with difference, its propagation delay time of base station near distance can be little, correspondingly, if two base stations send schedule information simultaneously, the information that UE1 sends out the base station that receives first near distance.Therefore, here at the T of k frame
i+ t
1Constantly begin to detect described schedule information, described t
1Be the propagation delay time between the near base station eNodeB 1 of UE1 and the described base station described UE1 of middle distance, like this, can guarantee to receive the schedule information of the base station of near distance.Further, described UE1 stops the reception of described schedule information after the schedule information that receives 2 transmissions of distant base station eNodeB.Like this, can guarantee that the schedule information of two adjacent base stations can both receive, can in time discharge corresponding sub band resources simultaneously.
Further, described UE1 according to respectively with the propagation delay time of described two adjacent base stations, determine described schedule information concrete grammar can for:
Described UE1 will be at the T of k frame
i+ t
1The described schedule information that the descending subband that uses at eNodeB1 constantly receives is defined as the schedule information of described eNodeB1, will be at the T of k frame
i+ t
2The described schedule information that the descending subband that uses at eNodeB2 constantly receives is defined as the schedule information of described eNodeB2.
Here, by the T at the k+1 frame
j+ t
1Constantly begin downlink data receiving, can guarantee that UE receives the downlink data that nearest base station eNodeB 1 sends, particularly, this step can adopt following method to realize:
Described UE1 is according to the described schedule information that receives, at the T of k+1 frame
j+ t
1Constantly begin downlink data receiving, and stop the reception of described downlink data after the data that receive described eNodeB2 transmission, described UE1 will be at the T of k+1 frame
j+ t
1The described downlink data that the descending subband that uses at eNodeB1 constantly receives is defined as the valid data that described eNodeB1 sends, and the upstream data that is converted into take eNodeB2 as the purpose base station is kept in the buffering area of self; Will be at the T of k frame
j+ t
2The downlink data that the descending subband that uses at eNodeB2 constantly receives is defined as the valid data that described eNodeB2 sends, and is converted into take eNodeB1 as the upstream data of purpose base station and is kept at self buffering area.
Here need to prove, base station side will receive according to the base station of systemic presupposition the benchmark moment T of upstream data
zCome receive data, therefore, can constantly receive data at this benchmark in order to ensure the base station here, at the T of m+1 frame
z-(t
2+ toffset) constantly open up sendaisle, and at the T of m+1 frame
z-(t
2+ toffset) constantly and T
z-(t
1+ toffset) constantly between, the upstream data that the up subband that uses at eNodeB1 sends is 0.Like this, at the T of m+1 frame
z-(t
2+ be engraved in toffset) time on the up subband that distant eNodeB2 uses and send effective upstream data to eNodeB2, at the T of m+1 frame
z-(t
1+ be engraved in toffset) time on the up subband that the eNodeB1 of close together uses and send effective upstream data to eNodeB1, thus can guarantee that the base station is at the T of m+1 frame
zConstantly receive data.
Further, after described UE1 opens described up sendaisle, after sending, the upstream data take described eNodeB1 as the purpose base station stops the transmission of described upstream data.
For base station side is configured accurately to the ascending resource of UE, further, can be when described upstream data be sent to described purpose base station, current needs are sent to described purpose base station but the upstream data total amount that not yet sends is notified to described purpose base station.
Corresponding with said method, the present invention proposes a kind of device of realizing inter base station communication, this device is located in the common fringe region that covers of two adjacent base stations that need communication, and system adopts the mode of interference coordination that described device is connected with described two adjacent base stations respectively in advance.Particularly, this device can be a subscriber equipment (UE).Fig. 2 is the apparatus structure schematic diagram of the realization inter base station communication corresponding with said method, for simplicity, only provided unidirectional communication signal in the apparatus structure shown in Figure 2, structural representation when to be source base station eNodeB1 to purpose base station eNodeB 2 send information, this device comprises as shown in Figure 2:
The schedule information monitoring modular is used for the T at current k frame
i+ t
1Constantly begin to detect schedule information, and according to the propagation delay time of described two adjacent base stations, determine the schedule information that each described base station sends, notice is to data receiver and modular converter and data transmission blocks, described t
1Be the propagation delay time between the near base station eNodeB 1 of described device and the described base station described device of middle distance, described T
iSend the benchmark moment of described schedule information for default base station side;
Data receiver and modular converter are used for according to described schedule information, at the T of k+1 frame
j+ t
1Constantly begin downlink data receiving, described downlink data is converted into upstream data, and the log-on data sending module;
Data transmission blocks is used for the purpose base station requests ascending resource to described upstream data, and after the m frame detects corresponding scheduling DCI, at the T of m+1 frame
z-(t
2+ toffset) constantly open up sendaisle, according to described scheduling DCI, described upstream data is sent to described purpose base station, wherein, at the T of m+1 frame
z-(t
2+ toffset) constantly and T
z-(t
1+ toffset) constantly between, the upstream data that the up subband that uses at eNodeB1 sends is 0, T
zReceive the benchmark moment of upstream data for default base station, t
2Be the propagation delay time between UE1 and the described base station described UE1 of the middle distance base station eNodeB 2 far away, toffset is default up lead.
Preferably, described schedule information monitoring modular is further used for stopping the reception of described schedule information after the described schedule information that receives described eNodeB2 transmission.
Preferably, described schedule information monitoring modular is further used for the T at the k frame
i+ t
1The described schedule information that the descending subband that uses at eNodeB1 constantly receives is defined as the schedule information of described eNodeB1, will be at the T of k frame
i+ t
2The described schedule information that the descending subband that uses at eNodeB2 constantly receives is defined as the schedule information of described eNodeB2.
Preferably, described data receiver and modular converter are used for according to the described schedule information that receives, at the T of k+1 frame
j+ t
1Constantly begin downlink data receiving, and after the data that receive described eNodeB2 transmission, stop the reception of described downlink data, will be at the T of k+1 frame
j+ t
1The described downlink data that the descending subband that uses at eNodeB1 constantly receives is defined as the valid data that described eNodeB1 sends, and is converted into the upstream data as the purpose base station take eNodeB2; Will be at the T of k frame
j+ t
2The downlink data that the descending subband that uses at eNodeB2 constantly receives is defined as the valid data that described eNodeB2 sends, and is converted into the upstream data as the purpose base station take eNodeB1.
Preferably, described data transmission blocks is further used for stopping the transmission of described upstream data after the upstream data take described eNodeB1 as the purpose base station sends after opening described up sendaisle.
Preferably, described data transmission blocks is further used for when described upstream data is sent to described purpose base station, current needs is sent to described purpose base station but the upstream data total amount that not yet sends is notified to described purpose base station.
In sum, above is preferred embodiment of the present invention only, is not for limiting protection scope of the present invention.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a method that realizes inter base station communication is characterized in that, the method may further comprise the steps:
A, in the common fringe region that covers of two adjacent base stations of needs communication, a user UE1 who is used for relaying is set in advance, and adopts the mode of interference coordination that described UE1 is connected with described two adjacent base stations respectively;
B, when needing to communicate by letter between the described base station, need to send the base station of data at the T of current k frame
iConstantly will notify to UE1 be used to the schedule information that sends described data, and at the T of k+1 frame
jThe described data that constantly will need to send send to described UE1;
C, described UE1 are at the T of k frame
i+ t
1Constantly begin to detect described schedule information, described t
1Be the propagation delay time between the near base station eNodeB 1 of UE1 and the described base station described UE1 of middle distance; Described UE1 according to respectively with the propagation delay time of described two adjacent base stations, determine described schedule information;
D, described UE1 are according to the described schedule information that receives, at the T of k+1 frame
j+ t
1Constantly begin downlink data receiving, described downlink data is converted into upstream data and preservation;
E, described UE1 be to the purpose base station requests ascending resource of described upstream data, and after the m frame detects corresponding dispatching downlink control information DCI, at the T of m+1 frame
z-(t
2+ toffset) constantly open up sendaisle, according to described scheduling DCI, described upstream data is sent to described purpose base station, wherein, at the T of m+1 frame
z-(t
2+ toffset) constantly and T
z-(t
1+ toffset) constantly between, the upstream data that the up subband that uses at eNodeB1 sends is 0, T
zReceive the benchmark moment of upstream data for default base station, t
2Be the propagation delay time between UE1 and the described base station described UE1 of the middle distance base station eNodeB 2 far away, toffset is default up lead; Described purpose base station is at the T of m+1 frame
zConstantly receive described upstream data.
2. method according to claim 1 is characterized in that, UE1 described in the step c stops the reception of described scheduling DCI behind the described scheduling DCI that receives described eNodeB2 transmission.
3. method according to claim 1 is characterized in that, UE1 described in the step c according to respectively with the propagation delay time of described two adjacent base stations, determine that described schedule information is:
Described UE1 will be at the T of k frame
i+ t
1The described schedule information that the descending subband that uses at eNodeB1 constantly receives is defined as the schedule information of described eNodeB1, will be at the T of k frame
i+ t
2The described schedule information that the descending subband that uses at eNodeB2 constantly receives is defined as the schedule information of described eNodeB2.
4. method according to claim 1 is characterized in that, described steps d is:
Described UE1 is according to the described schedule information that receives, at the T of k+1 frame
j+ t
1Constantly begin downlink data receiving, and stop the reception of described downlink data after the data that receive described eNodeB2 transmission, described UE1 will be at the T of k+1 frame
j+ t
1The described downlink data that the descending subband that uses at eNodeB1 constantly receives be defined as the valid data that described eNodeB1 sends, and the upstream data that is converted into take eNodeB2 as the purpose base station is kept in the buffering area of self; Will be at the T of k frame
j+ t
2The downlink data that the descending subband that uses at eNodeB2 constantly receives is defined as the valid data that described eNodeB2 sends, and is converted into take eNodeB1 as the upstream data of purpose base station and is kept at self buffering area.
5. method according to claim 1 is characterized in that, after UE1 described in the step e opens described up sendaisle, stops the transmission of described upstream data after the upstream data take described eNodeB1 as the purpose base station sends.
6. method according to claim 1 is characterized in that, when among the step e described upstream data being sent to described purpose base station, current needs is sent to described purpose base station but the upstream data total amount that not yet sends is notified to described purpose base station.
7. device of realizing inter base station communication, it is characterized in that, this device is located in the common fringe region that covers of two adjacent base stations that need communication, and system adopts the mode of interference coordination that described device is connected with described two adjacent base stations respectively in advance, and this device comprises:
The schedule information monitoring modular is used for the T at current k frame
i+ t
1Constantly begin to detect schedule information, and according to the propagation delay time of described two adjacent base stations, determine the schedule information that each described base station sends, notice is to data receiver and modular converter and data transmission blocks, described t
1Be the propagation delay time between the near base station eNodeB 1 of described device and the described base station described device of middle distance, described T
iSend the benchmark moment of described schedule information for default base station side;
Data receiver and modular converter are used for according to described schedule information, at the T of k+1 frame
j+ t
1Constantly begin downlink data receiving, described downlink data is converted into upstream data, and the log-on data sending module;
Data transmission blocks is used for the purpose base station requests ascending resource to described upstream data, and after the m frame detects corresponding dispatching downlink control information DCI, at the T of m+1 frame
z-(t
2+ toffset) constantly open up sendaisle, according to described scheduling DCI, described upstream data is sent to described purpose base station, wherein, at the T of m+1 frame
z-(t
2+ toffset) constantly and T
z-(t
1+ toffset) constantly between, the upstream data that the up subband that uses at eNodeB1 sends is 0, T
zReceive the benchmark moment of upstream data for default base station, t
2Be the propagation delay time between UE1 and the described base station described UE1 of the middle distance base station eNodeB 2 far away, toffset is default up lead.
8. device according to claim 7 is characterized in that, described schedule information monitoring modular is further used for stopping the reception of described schedule information after the described schedule information that receives described eNodeB2 transmission.
9. device according to claim 7 is characterized in that, described schedule information monitoring modular is further used for the T at the k frame
i+ t
1The described schedule information that the descending subband that uses at eNodeB1 constantly receives is defined as the schedule information of described eNodeB1, will be at the T of k frame
i+ t
2The described schedule information that the descending subband that uses at eNodeB2 constantly receives is defined as the schedule information of described eNodeB2.
10. device according to claim 7 is characterized in that, described data receiver and modular converter are used for according to the described schedule information that receives, at the T of k+1 frame
j+ t
1Constantly begin downlink data receiving, and after the data that receive described eNodeB2 transmission, stop the reception of described downlink data, will be at the T of k+1 frame
j+ t
1The described downlink data that the descending subband that uses at eNodeB1 constantly receives is defined as the valid data that described eNodeB1 sends, and is converted into the upstream data as the purpose base station take eNodeB2; Will be at the T of k frame
j+ t
2The downlink data that the descending subband that uses at eNodeB2 constantly receives is defined as the valid data that described eNodeB2 sends, and is converted into the upstream data as the purpose base station take eNodeB1.
11. device according to claim 7 is characterized in that, described data transmission blocks is further used for stopping the transmission of described upstream data after the upstream data take described eNodeB1 as the purpose base station sends after opening described up sendaisle.
12. device according to claim 7, it is characterized in that, described data transmission blocks is further used for when described upstream data is sent to described purpose base station, current needs is sent to described purpose base station but the upstream data total amount that not yet sends is notified to described purpose base station.
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| CN2011102546736A CN102958071A (en) | 2011-08-31 | 2011-08-31 | Method and device for realizing communication between base stations |
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| WO2014190527A1 (en) * | 2013-05-30 | 2014-12-04 | 华为技术有限公司 | Assisted communication method and device |
| CN104471874A (en) * | 2013-06-29 | 2015-03-25 | 华为技术有限公司 | Data Forwarding Method, Relay Node Equipment And Network System |
| CN106605444A (en) * | 2014-09-11 | 2017-04-26 | 瑞典爱立信有限公司 | Delegate-based inter-network communication |
| CN114745815A (en) * | 2022-05-13 | 2022-07-12 | 交通运输部规划研究院 | Data transmission system for base station of shore station |
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| CN101562507A (en) * | 2008-04-14 | 2009-10-21 | 中兴通讯股份有限公司 | Data transmission method |
| CN101841865A (en) * | 2009-03-20 | 2010-09-22 | 中兴通讯股份有限公司 | Method and device for selecting working mode of relay station |
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| CN101262696A (en) * | 2007-03-09 | 2008-09-10 | 华为技术有限公司 | A method for realizing inter-system communication and system and terminal |
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| WO2014190527A1 (en) * | 2013-05-30 | 2014-12-04 | 华为技术有限公司 | Assisted communication method and device |
| CN104471874A (en) * | 2013-06-29 | 2015-03-25 | 华为技术有限公司 | Data Forwarding Method, Relay Node Equipment And Network System |
| CN106605444A (en) * | 2014-09-11 | 2017-04-26 | 瑞典爱立信有限公司 | Delegate-based inter-network communication |
| CN106605444B (en) * | 2014-09-11 | 2020-05-29 | 瑞典爱立信有限公司 | Delegate-based inter-network communication |
| CN114745815A (en) * | 2022-05-13 | 2022-07-12 | 交通运输部规划研究院 | Data transmission system for base station of shore station |
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Application publication date: 20130306 |