CN102625356A - CoMP-based method for accessing multiple cells by terminal and system - Google Patents
CoMP-based method for accessing multiple cells by terminal and system Download PDFInfo
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- CN102625356A CN102625356A CN2011100343879A CN201110034387A CN102625356A CN 102625356 A CN102625356 A CN 102625356A CN 2011100343879 A CN2011100343879 A CN 2011100343879A CN 201110034387 A CN201110034387 A CN 201110034387A CN 102625356 A CN102625356 A CN 102625356A
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- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
- H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
Abstract
The invention discloses a coordinated multi-point (CoMP)-based method for accessing multiple cells by a terminal. The method comprises the following steps that: a base station sends a system message carrying a minimum threshold of a measurement cell reported by user equipment (UE) to the UE; after the UE receives the system message, a serving cell corresponding to the UE itself and a measurement cell set are determined according to the minimum threshold and the measurement cell set is reported to the base station; the base station carries out information interaction with the measurement cell reported by the UE to select a coordinated cell set and the UE is informed of the selected coordinated cell set; and after receiving the notification and carrying out feedback, the UE is added into the CoMP. Meanwhile, the invention also discloses a CoMP-based system for accessing multiple cells by a terminal. According to the method and the system provided by the invention, a problem that edge UE can not be added into a CoMP when the initial access of the edge UE is carried out can be solved, thereby ensuring the throughput of the cell edge when the edge UE is accessed initially.
Description
Technical field
(Long Term Evolution Advanced, (Coordinated multi-point, CoMP) technology relate in particular to the method and system that many sub-districts are inserted at a kind of terminal based on CoMP to the multipoint cooperative in LTE-Advanced) to the present invention relates to the evolution of LTE.
Background technology
LTE-Advanced is as the candidate technologies scheme of the 4th third-generation mobile communication technology (4G); Its performance index further strengthen on the basis of LTE; System supports maximum 100MHz bandwidth, and the descending peak rate of support is 1Gbit/s, and spectrum efficiency has been brought up to 30bit/s/Hz; Up peak rate is 500Mbit/s, and spectrum efficiency has been brought up to 15bit/s/Hz.The above-mentioned performance of LTE-Advance especially proposes high requirement on the cell edge throughput in cell throughout, and therefore, LTE-Advanced proposes the method for CoMP and improves the cell edge coverage rate to reach, and improves the purpose of cell transmission speed.
Said CoMP comprises that descending CoMP sends and up CoMP receives.Wherein, up CoMP reception receives uniting of user data through a plurality of sub-districts and improves the Cell Edge User throughput; Whether descending CoMP emission according to obtaining business datum on a plurality of focal points, can be divided into Combined Treatment (JointProcessing, JP) and cooperative scheduling/wave beam forming (Coordinated Scheduling/Beamforming, CS/CB).Up CoMP receives and mainly utilizes the mode of Combined Treatment to obtain transmission gain, and up CoMP receives then and reduces presence of intercell interference through cooperation.
Third generation partner program (3GPP) is defined as Serving cell with the sub-district, cooperation cell set and measurement cell set.Serving cell is to be used for the single subdistrict of transmitting physical downlink channel control (PDCCH); The cooperation cell set is one group of set of cells that directly or indirectly sends Physical Downlink Shared Channel (PDSCH) to UE, and this set can be transparent to UE, also can be opaque to UE; The measurement cell set is one group of set of cells that reports the channel condition information that is connected with UE.
At present, confirming of set of the cooperation cell of UE and measurement cell set all carried out after the initial access of UE; Will bring a problem like this: if UE just is in the edge of sub-district when initially inserting; As shown in Figure 1, so, said UE then can only could add CoMP after initial the access; And improve the cell edge throughput through the CoMP technology, the edge throughput of sub-district becomes bottleneck when causing UE initially to insert.
Summary of the invention
In view of this; Main purpose of the present invention is to provide a kind of terminal based on CoMP to insert the method and system of many sub-districts; Edge UE can be solved and when initial the access, the problem of CoMP can not be added, and then the throughput of cell edge can guarantee that edge UE initially inserts the time.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention discloses a kind of terminal based on multipoint cooperative CoMP and insert the method for many sub-districts, this method comprises:
The system message that UE reporting measurement sub-district minimum threshold will be carried in the base station sends to UE; After UE receives system message, confirm Serving cell and the measurement cell set that self is corresponding, and the measurement cell set is reported the base station according to said minimum threshold;
The measurement cell that base station and UE report is carried out information interaction, selects cooperation cell, and with the cooperation cell set notice UE that selects; UE notified and feed back after, add CoMP.
Wherein, said thresholding is defined as: the absolute value of Reference Signal Received Power RSRP, or with the difference value of Serving cell RSRP.
Wherein, said UE reporting measurement set of cells is:
UE sends radio resource control RRC connection request message to the base station; In RRC connection request message, carry the relevant information of measurement cell set; Comprise: the sub-district ID of each measurement cell or sub-district ID+RSRP measured value or sub-district ID+ difference RSRP measured value; If what carry is sub-district ID+ difference RSRP measured value, also need carry this Serving cell RSRP measured value.
Wherein, said base station is selected cooperation cell and is:
The measurement cell that base station and UE report is carried out information interaction, selects when the light sub-district of preload, directly as cooperation cell; Perhaps,
The RSRP measured value that the base station reports with UE is that foundation is carried out information interaction with all measurement cell that UE reports, and selects cooperation cell; Perhaps,
All measurement cell that the channel quality indicator (CQI) that the base station reports according to UE/pre-coding matrix indication PMI/ order indication RI value and RSRP measured value and UE report are carried out information interaction, select cooperation cell.
Wherein, said base station with the cooperation cell set notice UE that selects is:
The base station sets up message through the RRC connection or RRC connection reconfiguration message notifies cooperation cell to UE.
In the such scheme, after said UE received system message, this method also comprised:
UE selects the highest sub-district of RSRP measured value in cell search process, promptly Serving cell is resident, and storage simultaneously reaches the cell information of minimum threshold, comprises sub-district ID and corresponding RSRP measured value or RSRP difference value.
The invention also discloses a kind of terminal based on multipoint cooperative CoMP and insert the system of many sub-districts, this system comprises: base station and UE; Wherein,
Said base station is used for the system message of carrying UE reporting measurement sub-district minimum threshold is sent to UE, and receives the measurement cell set that UE reports; Carry out information interaction with the measurement cell that UE reports, select cooperation cell, and, receive the feedback of UE the cooperation cell set notice UE that selects;
Said UE after being used to receive system message, confirms Serving cell and the measurement cell set that self is corresponding according to said minimum threshold, and the measurement cell set is reported the base station; Feed back after receiving the cooperation cell set of notifying the base station, and add CoMP.
Wherein, after said UE receives system message, also be used in cell search process; Select the highest sub-district of RSRP measured value; Be that Serving cell is resident, storage simultaneously reaches the cell information of minimum threshold, comprises sub-district ID and corresponding RSRP measured value or RSRP difference value.
The method and system of many sub-districts is inserted at terminal based on CoMP provided by the invention, and the system message that UE reporting measurement sub-district minimum threshold will be carried in the base station sends to UE; After UE receives system message, confirm Serving cell and the measurement cell set that self is corresponding, and the measurement cell set is reported the base station according to said minimum threshold; The measurement cell that base station and UE report is carried out information interaction, selects cooperation cell, and with the cooperation cell set notice UE that selects; UE notified and feed back after, add CoMP.Among the present invention; UE; Just edge UE at the latest after RRC connects reconfiguration message, gets final product CoMP participating and connect at RRC the soonest after setting up message when initial the access, obtains the gain that CoMP brings on the cell edge throughput; Therefore the present invention can solve edge UE can not add CoMP when initial access the problem, has guaranteed the throughput of cell edge when edge UE initially inserts.
Description of drawings
Fig. 1 is in the structural representation of cell edge when initially inserting for UE;
Fig. 2 is the method realization flow sketch map that many sub-districts are inserted at the terminal that the present invention is based on CoMP;
All cell structure sketch mapes that Fig. 3 searches in cell search process for UE;
Fig. 4 is the structure chart of the MAC Control Element of mode one among the embodiment one;
Fig. 5 is the MAC PDU head construction figure of mode two among the embodiment one;
Fig. 6 is the structure chart of the MAC Control Element of mode two among the embodiment one;
Fig. 7 is the structure chart of the MAC Control Element of mode three among the embodiment one.
Embodiment
Basic thought of the present invention is: the system message that UE reporting measurement sub-district minimum threshold will be carried in the base station sends to UE; After UE receives system message, confirm Serving cell and the measurement cell set that self is corresponding, and the measurement cell set is reported the base station according to said minimum threshold; The measurement cell that base station and UE report is carried out information interaction, selects the cooperation cell set, and with cooperation cell set notice UE; UE notified and feed back after, add CoMP.
Wherein, UE described in the present invention is edge UE.
Below in conjunction with accompanying drawing and specific embodiment the present invention is done further explain.
Fig. 2 is the method realization flow sketch map that many sub-districts are inserted at the terminal that the present invention is based on CoMP, and as shown in Figure 2, the performing step of this flow process is following:
Step 201: the system message that UE reporting measurement sub-district minimum threshold will be carried in the base station sends to UE;
Be specially: the minimum threshold of UE to reporting measurement sub-district, base station carried to UE transmitting system message in the base station in the system message.Here, there are two kinds: first kind, threshold value is defined as the absolute value of Reference Signal Received Power (RSRP) about the definition mode of threshold value; Second kind, threshold value is defined as the difference value with Serving cell RSRP.
In the prior art, in the UE initial access process, the base station can not obtain the measurement cell set that UE reports, and the measurement cell set is determined by the base station; Among the present invention, in the UE initial access process, change by UE active reporting measurement set of cells, the measurement cell that reports need satisfy minimum threshold, and this minimum threshold is carried by the system message that send the base station.
After step 202:UE receives system message, confirm Serving cell and the measurement cell set that self is corresponding according to said minimum threshold;
Be specially: after receiving system message, UE selects the highest sub-district of RSRP in cell search process, and promptly Serving cell is resident, and storage simultaneously reaches the cell information of minimum threshold, comprises the RSRP measured value or the RSRP difference value of sub-district ID and measurement.
If all cell structure sketch mapes that Fig. 3 searches in cell search process for UE, Serving cell and measurement cell can be confirmed as follows:
Method one: UE searches totally nine sub-districts, 1-sub-district, sub-district 9 in cell search process, by the descending arrangement of its RSRP measured value, be followed successively by RSRP
1＞RSRP
5＞RSRP
6＞RSRP
3＞RSRP
4＞RSRP
9＞RSRP
2＞RSRP
7＞RSRP
8, if minimum threshold is taken as absolute thresholding RSRP
MinIf, and RSRP
1＞RSRP
5＞RSRP
6＞RSRP
3＞RSRP
4＞RSRP
9＞RSRP
Min＞RSRP
2＞RSRP
7＞RSRP
8, 1 of sub-district is a Serving cell so, 5,6,3,4,9 of sub-districts are measurement cell.
Method two: UE searches totally nine sub-districts, 1-sub-district, sub-district 9 in cell search process, by the descending arrangement of its RSRP measured value, be followed successively by RSRP
1＞RSRP
5＞RSRP
6＞RSRP
3＞RSRP
4＞RSRP
9＞RSRP
2＞RSRP
7＞RSRP
8, if minimum threshold is taken as difference thresholding RSRP
MinIf, and (RSRP
1-RSRP
5)＜(RSRP
1-RSRP
6)＜(RSRP
1-RSRP
3)＜(RSRP
1-RSRP
4)＜(RSRP
1-RSRP
9)＜RSRP
Min, sub-district 1 is a Serving cell so, 5,6,3,4,9 of sub-districts are measurement cell.
Here, the span of minimum threshold can be restricted to 4-8, can dispose through the backstage, the base station notify to UE be enumerated value, UE can be mapped to corresponding dbm value according to enumerated value.
In the prior art; After UE has selected the highest sub-district of RSRP measured value resident; Can abandon the sub-district relevant information that other searches, and UE of the present invention to the sub-district RSRP measured value ordering that searches after, select the highest sub-district of RSRP measured value resident; And store sub-district ID and corresponding RSRP measured value or the difference RSRP measured value that reaches minimum threshold, abandon the relevant information of other sub-district that searches then.
Step 203:UE reports the base station with the measurement cell set;
Be specially: UE sends Radio Resource control (RRC) connection request message to the base station; In RRC connection request message, carry the relevant information of measurement cell set; Comprise: the sub-district ID of each measurement cell or sub-district ID+RSRP measured value or sub-district ID+ difference RSRP measured value; If what carry is sub-district ID+ difference RSRP measured value, also need carry this Serving cell RSRP measured value.
Certainly, if UE in cell search process, does not search the sub-district that reaches minimum threshold, UE then need not carry the measurement cell relevant information when sending RRC connection request message.
The measurement cell set that UE reports is carried at lining, MAC control information unit (MAC ControlElement); Can use the Logic Channel Identifier (LCID) of reservation to carry the measurement cell set; Base station resolves directly reports RRC with metrical information after going out the head of Medium Access Control (MAC) Protocol Data Unit (PDU).
Step 204: the measurement cell that base station and UE report is carried out information interaction, selects cooperation cell, and with cooperation cell set notice UE;
Be specially: if the UE competition success, information interaction will be carried out with the measurement cell of carrying in the RRC connection request message in the base station, select cooperation cell, and connect through RRC and to set up message or RRC and connect reconfiguration message cooperation cell is notified to UE.
Here, the said cooperation cell of selecting, and the mode of result notification UE had following three kinds:
Mode one: the measurement cell that base station and UE report is carried out information interaction, selects when the light sub-district of preload, directly as cooperation cell, connects to set up at RRC and brings UE in the message.
Mode two: the RSRP measured value that the base station reports with UE is that foundation is carried out information interaction with all measurement cell that UE reports, and selects cooperation cell, sets up message through the RRC connection and sends to UE.
Mode three: channel quality indication (the Channel Quality Indicator that the base station reports according to UE; CQI)/pre-coding matrix indication (Precoding Matrix Indicator; PMI)/order indication (Rank Indication; RI) all measurement cell of reporting of value and RSRP measured value and UE are carried out information interaction, select cooperation cell, connect in the reconfiguration message at RRC to bring UE;
Wherein, the base station issues the CQI/PMI/RI configuration when message is set up in UE transmission RRC connection; Connect 0 li of the DCI that issues after setting up message at RRC CQI request is put 1; Trigger UE and report aperiodic CQI/PMI/RI, this moment, UE not only will report the CQI/PMI/RI of Serving cell, also wanted the CQI/PMI/RI of reporting measurement sub-district; The base station is after the CQI/PMI/RI information that acquisition UE reports; All measurement cell according to CQI/PMI/RI and RSRP measured value and UE report are carried out information interaction, select cooperation cell, connect in the reconfiguration message at RRC to bring UE.
In above-mentioned three kinds of modes, how the base station specifically selects cooperation cell not in protection scope of the present invention after carrying out information interaction with measurement cell.
Step 205:UE notified and feed back after, add CoMP;
Be specially: after UE received the notice of base station, transmission connected the ACK feedback of setting up message to RRC, and the base station makes UE directly get into the CoMP cell set after receiving the ACK feedback, obtains the gain that CoMP brings.
Below in conjunction with specific embodiment the present invention is described in further detail.
Embodiment one
Specifically introduce the different modes of three kinds of UE reporting measurement set of cells in the present embodiment.
Mode one: UE only carries the sub-district ID of measurement cell in the MAC Control of RRC connection request message Element, the structure of MAC Control Element is as shown in Figure 4.Wherein, LCG ID is taken as the value that keeps at present in the agreement, and Cell ID representes sub-district ID, and available 14bit representes, if a plurality of sub-district ID are arranged, then needs to represent with a plurality of MAC Control Element.
Mode two: UE carries the sub-district ID and the absolute RSRP measured value of measurement cell in the MAC Control of RRC connection request message Element, MAC PDU head construction is as shown in Figure 5, and the structure of MACControl Element is as shown in Figure 6.Wherein, the LCID value is the value that keeps at present in the agreement in the sub-head, and L length can be 7bit, i.e. the longest 128bytes that can be of MAC Control Element; MACControl Element is made up of Cell ID and RSRP measured value two parts, and Cell ID can take 9bit, and the RSRP measured value can take 7bit.
Mode three: UE carries the sub-district ID and the difference RSRP measured value of measurement cell in the MAC Control of RRC connection request message Element, identical in MAC PDU head and the mode two, the structure of MACControl Element is as shown in Figure 7.Wherein, MAC Control Element is made up of Serving cell RSRP measured value, measurement cell Cell ID and difference RSRP value three parts; Serving cell RSRP measured value can be represented with 8bit; Measurement cell Cell ID can represent that the RSRP difference value can represent that all the other 4bit then can be and keep the position with 3bit with 9bit.
Embodiment two
Specifically introduce the base station described in the step 204 in the present embodiment and select cooperation cell, and notify three kinds of methods to UE with the cooperation cell of selecting.
Method one: the base station checks that UE passes through the measurement cell ID of RRC connection request information reporting; Do not need the RSRP measured value to be used for choosing of cooperation cell; Just and all measurement cell of reporting of UE carry out interacting message; Check that which measurement cell has the ability to carry out CoMP, just elect cooperation cell as, connect through RRC and set up message the cooperation cell of selecting is notified to UE.Connect to set up at RRC and need not notify concrete sub-district ID in the message, but notifying cell ID index, first sub-district ID among the index 0 corresponding RRC connection request message MACControl Element, index 1 corresponding second sub-district ID, and the like.
Method two: the base station is used for choosing of cooperation cell with the RSRP measured value that UE carries through RRC connection request message as metrical information, connects through RRC and sets up message with the cooperation cell notice UE that selects.Equally, connect to set up at RRC and need not notify concrete sub-district ID in the message, but notifying cell ID index, first sub-district ID among the index 0 corresponding RRC connection request message MAC Control Element, index 1 corresponding second sub-district ID, and the like.
Method three: the base station is used for choosing of cooperation cell as metrical information in the lump with CQI/PMI/RI and the RSRP measured value that UE reports.The RRC connection is set up and is carried the CQI configuration information in the message; Comprising the configuration of aperiodic configuration and cycle; The base station connects after setting up message that first is issued in the DCI0 of UE CQI request is put 1 sending RRC; Trigger UE and carry out aperiodic CQI and report, at this moment UE need report the CQI/PMI/RI of this Serving cell, also needs the CQI/PMI/RI of reporting measurement sub-district.
Receive behind the CQI/PMI/RI of CQI/PMI/RI and measurement cell of the Serving cell that UE reports when the base station and the RSRP measured value that reports before the UE together, be used for the decision-making of cooperation cell.Equally, need not notify concrete sub-district ID this moment, but notifying cell ID index, first sub-district ID among the index 0 corresponding RRC connection request message MAC Control Element, index 1 corresponding second sub-district ID, and the like.
For realizing said method, the present invention also provides a kind of terminal based on CoMP to insert the system of many sub-districts, comprising: base station and UE; Wherein,
Said base station is used for the system message of carrying UE reporting measurement sub-district minimum threshold is sent to UE, and receives the measurement cell set that UE reports; Carry out information interaction with the measurement cell that UE reports, select cooperation cell, and, receive the feedback of UE the cooperation cell set notice UE that selects;
Said UE after being used to receive system message, confirms Serving cell and the measurement cell set that self is corresponding according to said minimum threshold, and the measurement cell set is reported the base station; Feed back after receiving the cooperation cell set of notifying the base station, and add CoMP.
After said UE receives system message, also be used in cell search process, select the highest sub-district of RSRP measured value, promptly Serving cell is resident, and storage simultaneously reaches the cell information of minimum threshold, comprises sub-district ID and corresponding RSRP measured value or RSRP difference value.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (8)
1. the method for many sub-districts is inserted at the terminal based on multipoint cooperative CoMP, it is characterized in that this method comprises:
The system message that UE reporting measurement sub-district minimum threshold will be carried in the base station sends to UE; After UE receives system message, confirm Serving cell and the measurement cell set that self is corresponding, and the measurement cell set is reported the base station according to said minimum threshold;
The measurement cell that base station and UE report is carried out information interaction, selects cooperation cell, and with the cooperation cell set notice UE that selects; UE notified and feed back after, add CoMP.
2. the method for many sub-districts is inserted at the terminal based on CoMP according to claim 1, it is characterized in that, said thresholding is defined as: the absolute value of Reference Signal Received Power RSRP, or with the difference value of Serving cell RSRP.
3. the method for many sub-districts is inserted at the terminal based on CoMP according to claim 1 and 2, it is characterized in that, said UE reporting measurement set of cells is:
UE sends radio resource control RRC connection request message to the base station; In RRC connection request message, carry the relevant information of measurement cell set; Comprise: the sub-district ID of each measurement cell or sub-district ID+RSRP measured value or sub-district ID+ difference RSRP measured value; If what carry is sub-district ID+ difference RSRP measured value, also need carry this Serving cell RSRP measured value.
4. the method for many sub-districts is inserted at the terminal based on CoMP according to claim 1 and 2, it is characterized in that, said base station is selected cooperation cell and is:
The measurement cell that base station and UE report is carried out information interaction, selects when the light sub-district of preload, directly as cooperation cell; Perhaps,
The RSRP measured value that the base station reports with UE is that foundation is carried out information interaction with all measurement cell that UE reports, and selects cooperation cell; Perhaps,
All measurement cell that the channel quality indicator (CQI) that the base station reports according to UE/pre-coding matrix indication PMI/ order indication RI value and RSRP measured value and UE report are carried out information interaction, select cooperation cell.
5. the method for many sub-districts is inserted at the terminal based on CoMP according to claim 1 and 2, it is characterized in that, said base station with the cooperation cell set notice UE that selects is:
The base station sets up message through the RRC connection or RRC connection reconfiguration message notifies cooperation cell to UE.
6. the method for many sub-districts is inserted at the terminal based on CoMP according to claim 1 and 2, it is characterized in that, after said UE received system message, this method also comprised:
UE selects the highest sub-district of RSRP measured value in cell search process, promptly Serving cell is resident, and storage simultaneously reaches the cell information of minimum threshold, comprises sub-district ID and corresponding RSRP measured value or RSRP difference value.
7. the system of many sub-districts is inserted at the terminal based on multipoint cooperative CoMP, it is characterized in that this system comprises: base station and UE; Wherein,
Said base station is used for the system message of carrying UE reporting measurement sub-district minimum threshold is sent to UE, and receives the measurement cell set that UE reports; Carry out information interaction with the measurement cell that UE reports, select cooperation cell, and, receive the feedback of UE the cooperation cell set notice UE that selects;
Said UE after being used to receive system message, confirms Serving cell and the measurement cell set that self is corresponding according to said minimum threshold, and the measurement cell set is reported the base station; Feed back after receiving the cooperation cell set of notifying the base station, and add CoMP.
8. the system of many sub-districts is inserted at the terminal based on CoMP according to claim 7; It is characterized in that, after said UE receives system message, also be used in cell search process; Select the highest sub-district of RSRP measured value; Be that Serving cell is resident, storage simultaneously reaches the cell information of minimum threshold, comprises sub-district ID and corresponding RSRP measured value or RSRP difference value.
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| PCT/CN2011/084516 WO2012103772A1 (en) | 2011-02-01 | 2011-12-23 | Comp-based method and system for ue to access multiple cells |
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| CN102883453A (en) * | 2012-10-22 | 2013-01-16 | 张家港市鸿嘉数字科技有限公司 | Sending method for physical downlink control channels |
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| CN108141267A (en) * | 2015-09-24 | 2018-06-08 | Lg 电子株式会社 | The method and its equipment of channel state information are sent and received in wireless communication system |
| CN108111199A (en) * | 2017-05-05 | 2018-06-01 | 中兴通讯股份有限公司 | Feedback, method of reseptance and device, equipment, the storage medium of channel state information |
| US11063648B2 (en) | 2017-05-05 | 2021-07-13 | Zte Corporation | Methods and apparatus for feeding back and receiving channel state information, and device and storage medium |
| US11641231B2 (en) | 2017-05-05 | 2023-05-02 | Zte Corporation | Methods and apparatus for feeding back and receiving channel state information, and device and storage medium |
| CN110809861A (en) * | 2017-06-29 | 2020-02-18 | 华为技术有限公司 | Base station data transmission method, device and equipment |
| CN110809861B (en) * | 2017-06-29 | 2021-08-20 | 华为技术有限公司 | Base station data transmission method, device and equipment |
| US11122569B2 (en) | 2017-06-29 | 2021-09-14 | Huawei Technologies Co., Ltd. | Method and apparatus for transmitting base station data, and device |
Also Published As
| Publication number | Publication date |
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| WO2012103772A1 (en) | 2012-08-09 |
| CN102625356B (en) | 2017-11-03 |
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