CN102740360B - A kind of cell load control method and device - Google Patents
A kind of cell load control method and device Download PDFInfo
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Abstract
The present invention provides a kind of cell load control method and device, described method, including: when the first cell load overload, described first community selects one or more UE to carry out business transfer from the user equipment (UE) that it is serviced；Transfer to selected UE business in described first community to serve in other communities that the multipoint cooperative CoMP cell of selected UE is concentrated.Using the solution of the present invention, even if not making UE switch or call drop, it is also possible to effective load reducing community, decreasing the cutting off rate of UE, reducing the probability of UE switching, improve the KPI index of system.
Description
Technical field
The present invention relates to moving communicating field, be specifically related to the duty control method in CoMP (CooperativeMulti-Point, multipoint cooperative) transmission system and device.
Background technology
In the load management scene of existing mobile communication system, switching or call drop is generally used to reduce the load of community.For LTE system, when the load of community reaches the thresholding pre-seted, generally use the method for load balancing and spatial load forecasting to reduce cell load, i.e. select a UE of this community, be allowed to be switched to Target cell；Or there is business call drop.The quality of service that community is provided is ensured by both modes.And the process CIMS complexity switched, call drop can have a strong impact on the KPI index of network, and both reduces the mode of cell load each the most formidable inherent defect.
In LTE-A, formally CoMP transmission technology is studied as a kind of alternative technique.Its ultimate principle is that by combined dispatching, multiple communities that edge customer interference is stronger are reduced the interference to Cell Edge User, is improved the reception power of Cell Edge User by joint transmission further, thus improves the impression of Cell Edge User.Coordinated multipoint transmission technical characterstic is:
1) multiple communities cooperate on identical Radio Resource, are a UE service jointly；
2) each community is one or more UE service on identical Radio Resource simultaneously.
After introducing CoMP transmission technology in LTE_A, the mode of cell load management will change.At present, it is disclosed patent and does not also have the method under CoMP transmission technology, cell load managed.
Summary of the invention
The present invention provides a kind of cell load control method and device, with the problem solving how to realize cell load management in CoMP transmission system.For solving above-mentioned technical problem, the technical scheme is that
A kind of cell load control method, including:
When the first cell load overload, described first community selects one or more UE to carry out business transfer from the user equipment (UE) that it is serviced；
Transfer to selected UE business in described first community to serve in other communities that the CoMP cell of selected UE is concentrated.
Preferably, transfer to serve in other communities that the CoMP cell of selected UE is concentrated by selected UE business in described first community, including:
If described first community is the main plot that described CoMP cell is concentrated, the business of selected UE is transferred in the secondary cell that described CoMP cell is concentrated by described first community；
If described first community is the secondary cell that described CoMP cell is concentrated, described first community sends traffic overload instruction to the main plot that CoMP cell is concentrated, and notifies the selected UE business in described first community of described main plot transfer.
Preferably, one or more UE is selected to carry out business transfer from the UE that described first community is serviced, including:
Described first community selects one or more UE to form alternative UE queue according to business throughput and/or the priority of its UE serviced, and the business to the UE in alternative UE queue carries out transfer until the load of described first community is normal successively.
Preferably,
If described first community is the main plot that described CoMP cell is concentrated, the business of selected UE is transferred in the secondary cell that described CoMP cell is concentrated by described first community, including:
Described first community is according to the load condition of the secondary cell of selected UE, the business of selected UE is transferred in one or more secondary cells that described CoMP cell is concentrated, and the physical resource receiving or sending the business datum of selected UE is informed the one or more secondary cell.
Preferably,
The instruction of described traffic overload includes: the carrying information that the ID of described first community, the ID of selected UE, business information to be shifted for selected UE and selected UE are to be shifted；
After described main plot receives the instruction of described traffic overload, according to the load condition of self load condition and other secondary cells, selected UE business in described first community is transferred in described main plot and/or other secondary cells；If transferring in other secondary cells, the physical resource receiving or sending the business datum of selected UE is also informed other secondary cells described by the most described main plot.
For solving above-mentioned technical problem, the present invention also provides for a kind of cell load and controls device, selects module and load shift module including UE；
Described UE selects module, for when the traffic overload of the first community being detected, selects one or more UE to be sent to load shift module from the UE that described first community is serviced；
Described load shift module, is used in other communities of CoMP cell concentration that the UE that described UE selects module selection business in described first community transfers to serve described UE.
Preferably, if described first community is to serve the main plot that described CoMP cell is concentrated, described load shift module, it is for the business of UE selected by described UE selection module is transferred in the secondary cell that described CoMP cell is concentrated；
If described first community is to serve the secondary cell that described UE selects the CoMP cell of UE selected by module to concentrate, described load shift module, it is that the main plot for concentrating to CoMP cell sends traffic overload instruction, notifies that described main plot is shifted described UE and selected UE business in described first community selected by module.
Preferably, described UE selects module, it is that business throughput and/or the priority of UE for being serviced according to described first community selects one or more UE to form alternative UE queue, successively the UE in alternative UE queue is sent to load shift module, until detecting that the load of described first community is under described threshold value.
Preferably, if described first community is to serve the main plot that the CoMP cell of UE selected by it is concentrated, described load shift module, it is for selecting the load condition of the secondary cell of UE selected by module according to described UE, the business of selected UE is transferred in one or more secondary cells that described CoMP cell is concentrated, and the physical resource receiving or sending the business datum of selected UE is informed the one or more secondary cell.
Preferably, the traffic overload instruction that described load shift module sends includes: the carrying information that the ID of described first community, the ID of selected UE, business information to be shifted for selected UE and selected UE are to be shifted；
Described load shift module, it is additionally operable to receive the traffic overload instruction of the transmission of the second community, according to the load condition of other secondary cells of UE selected by the load condition of the first community and described second community, the business in described second community of the UE selected by the second community is transferred in other secondary cells of UE selected by described first community and/or described second community；If transferring in other secondary cells of UE selected by described second community, it is additionally operable to inform other secondary cells of UE selected by described second community by receiving or sending the physical resource of the business datum of UE selected by described second community.
Using the solution of the present invention, even if not making UE switch or call drop, it is also possible to effective load reducing community, decreasing the cutting off rate of UE, reducing the probability of UE switching, improve the KPI index of system.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the CoMP cell collection of the present invention；
Fig. 2 is the cell load control flow chart of the embodiment of the present invention；
Fig. 3 is the schematic diagram of application example one of the present invention；
Fig. 4 is the schematic diagram of application example two of the present invention；
Fig. 5 is the schematic diagram of application example three of the present invention；
Fig. 6 is the schematic diagram of application example four of the present invention；
Fig. 7 is the schematic diagram of application example five of the present invention；
Fig. 8 is the schematic diagram of application example six of the present invention.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiments of the invention are described in detail.It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can mutual combination in any.
The present invention serves a UE based on CoMP technology, a CoMP cell collection, as it is shown in figure 1, community 1,2,3 and 7 constitutes a CoMP cell collection simultaneously serves UE.Wherein, community 1 is main plot, performs CoMP cell and concentrates the United Dispatching of all local resources, and there is Signalling exchange with UE；If accompanying drawing 1 community 2,3 and 7 is secondary cell, assisting main plot is UE service.
The present invention provides a kind of cell load control method, including:
When the first cell load overload, described first community selects one or more UE to carry out business transfer from the user equipment (UE) that it is serviced；
Transfer to selected UE business in described first community to serve in other communities that the CoMP cell of selected UE is concentrated.
The cell load of the present invention controls device, selects module and load shift module including UE；
Described UE selects module, for when the traffic overload of the first community being detected, selects one or more UE to be sent to load shift module from the UE that described first community is serviced；
Described load shift module, is used in other communities of CoMP cell concentration that the UE that described UE selects module selection business in described first community transfers to serve described UE.
Preferably, if described first community is to serve the main plot that described CoMP cell is concentrated, described load shift module, it is for the business of UE selected by described UE selection module is transferred in the secondary cell that described CoMP cell is concentrated；
If described first community is to serve the secondary cell that described UE selects the CoMP cell of UE selected by module to concentrate, described load shift module, it is that the main plot for concentrating to CoMP cell sends traffic overload instruction, notifies that described main plot is shifted described UE and selected UE business in described first community selected by module.
Preferably, described UE selects module, it is that business throughput and/or the priority of UE for being serviced according to described first community selects one or more UE to form alternative UE queue, successively the UE in alternative UE queue is sent to load shift module, until detecting that the load of described first community is under described threshold value.
Preferably, if described first community is to serve the main plot that the CoMP cell of UE selected by it is concentrated, described load shift module, it is for selecting the load condition of the secondary cell of UE selected by module according to described UE, the business of selected UE is transferred in one or more secondary cells that described CoMP cell is concentrated, and the physical resource receiving or sending the business datum of selected UE is informed the one or more secondary cell.
Preferably, the traffic overload instruction that described load shift module sends includes: the carrying information that the ID of described first community, the ID of selected UE, business information to be shifted for selected UE and selected UE are to be shifted；
Described load shift module, it is additionally operable to receive the traffic overload instruction of the transmission of the second community, according to the load condition of other secondary cells of UE selected by the load condition of the first community and described second community, the business in described second community of the UE selected by the second community is transferred in other secondary cells of UE selected by described first community and/or described second community；If transferring in other secondary cells of UE selected by described second community, it is additionally operable to inform other secondary cells of UE selected by described second community by receiving or sending the physical resource of the business datum of UE selected by described second community.
The community being illustrated in figure 2 the present invention meets the particular flow sheet of control method embodiment.
Step 201, community A detects self traffic overload；
Step 202, the business throughput of the UE serviced according to community A and/or priority select N number of (N is positive integer) UE to form alternative UE queue；
Step 203, it is judged that the main plot that in community A the most alternative UE queue, the CoMP cell of head of the queue UE is concentrated, if so, performs step 204, if it is not, perform step 210；
Step 204, the business of this head of the queue UE is transferred in the secondary cell that CoMP cell is concentrated by community A；
The business of UE, according to the load condition of secondary cell, is transferred to, in one or more secondary cells that described CoMP cell is concentrated, the physical resource of the business datum receiving or sending UE be informed the one or more secondary cell by community A；
Optionally, community A may select the secondary cell that load is minimum, it is possible to the multiple secondary cells selecting load less receive or send the business datum of this UE；
Optionally, the physical resource of the business datum receiving or sending UE can be informed the one or more secondary cell by MAC scheduling instruction by community A.
Step 205, secondary cell receives MAC scheduling instruction, accepts scheduling Hou Xiang community A and sends scheduling success response；
Step 206, community A discharges the business of this UE；
Step 207, A detection cell load in community is the most normal, if so, terminates flow process, if it is not, perform step 208；
Step 208, deletes the UE carrying out business transfer in alternative UE queue, and subtracts 1 by the value of N；
Step 209, it is judged that the value of N, whether equal to 0, if so, performs step 202；If it is not, perform step 203；
Step 210, community A sends traffic overload instruction to the main plot of head of the queue UE, and notice main plot needs to shift the business of this UE；
Optionally, the instruction of described traffic overload can include the ID of this community, the ID of selected UE, business information to be shifted for selected UE and selected UE carrying information to be shifted；
Step 211, main plot judges whether self load can carry this UE business to be shifted, and if so, performs step 212；If not performing step 214；
Step 212, the business that main plot will be shifted is transferred in main plot；
Step 213, main plot sends scheduling success response to community A, performs step 206；
Step 214, the business that main plot will be shifted is transferred in other secondary cells of this UE；
Step 215, other secondary cells receiving scheduling instruction send scheduling success response to main plot, and main plot is transmitted to community A, performs step 206.
It is below the application example of the present invention:
Application example one: community 1 uplink load transships, selects UE1 to carry out business transfer, and community 1 is the main plot of UE1
As it is shown on figure 3, the uplink service of UE1 is by main plot (community 1) and secondary cell (community 2) shared under normal circumstances.Which part of UE1 uplink service is undertaken by main plot, and which part is undertaken by secondary cell, is all uniformly coordinated by main plot.Main plot and secondary cell receive the upstream data of UE respectively, and the upstream data that secondary cell is received again sends main plot to, main plot send whole upstream datas of UE1 to core net.
After community 1 detects self traffic overload, UE1 is selected to carry out business transfer, owing to community 1 is the main plot of UE1, at this moment main plot will carry out resource coordination with the secondary cell of UE1, main plot no longer receives the uplink service of UE1, undertaken whole uplink services of UE1 by secondary cell, the most again the upstream data of UE is issued main plot by X2 mouth, main plot issue core net.
Application example two: community 1 downlink load is transshipped, selects UE1 to carry out business transfer, and community 1 is the main plot of UE1
As shown in Figure 4, downlink data is sent to the main plot (community 1) of UE1 by core net under normal circumstances, main plot carries out resource coordination scheduling, by main plot and the downlink service data of secondary cell (community 2) shared UE1, and which is dispatched is to be passed to UE1 by secondary cell (community 2), which is directly transmitted to UE1 by main plot.
When community 1 detects self traffic overload, selected UE1 carries out business transfer, owing to community 1 is the main plot of UE1, now, core net passes to the downlink data of main plot and is all scheduled to the secondary cell of UE1 by main plot, and main plot is no longer the downlink business service of alternative UE.
Application example three: community 2 uplink load transships, selects UE1 to carry out business transfer, and community 2 is the secondary cell of UE1
As it is shown in figure 5, the uplink service of UE1 is by main plot (community 1) and secondary cell (community 2) shared under normal circumstances.Which part of UE1 uplink service is undertaken by main plot, and which part is undertaken by secondary cell, is all uniformly coordinated by main plot.Main plot and secondary cell receive the upstream data of UE1 respectively, and the upstream data that secondary cell is received again sends main plot to, main plot send whole upstream datas of UE1 to core net.
After community 2 detects self traffic overload, UE1 is selected to carry out business transfer, owing to community 2 is the secondary cell of UE1, community 2 sends traffic overload instruction to the main plot (community 1) of UE1, informs the ID of community, main plot 2, the ID of UE1, the information such as service bearer information and traffic state, main plot will determine it is by main plot self according to self and the load condition of other secondary cell, or undertaken the uplink service of the UE1 originally undertaken by community 2 by other secondary cell.
Under conditions of main plot self load allows, the uplink service of the UE1 originally undertaken by community 2 is undertaken by main plot, main plot receives whole uplink business datas of UE1 when carrying out resource coordination scheduling, is dealt into core net after reception, and community 2 no longer receives the uplink business data of UE1.
Application example four: community 2 downlink load is transshipped, selects UE1 to carry out business transfer, and community 2 is the secondary cell of UE1
As shown in Figure 6, downlink data is sent to the main plot (community 1) of UE1 by core net under normal circumstances, main plot carries out resource coordination scheduling, by main plot and the downlink service data of secondary cell (community 2) shared UE1, and which is dispatched is to be passed to UE1 by secondary cell (community 2), which is directly transmitted to UE1 by main plot.
When community 2 detects self traffic overload, selected UE1 carries out business transfer, owing to community 2 is the secondary cell of UE1, community 2 sends traffic overload instruction to the main plot (community 1) of UE1, inform the ID of community, main plot 2, the ID of UE1, the information such as service bearer information and traffic state, main plot will be according to self load condition with other secondary cell, determine it is that the downlink data of the UE1 originally undertaken by community 2 is undertaken by main plot oneself, or undertaken by other secondary cell.
Under conditions of main plot self load allows, the uplink service of the UE1 originally undertaken by community 2 is undertaken by main plot, no longer allowing community 2 to receive the downlink data of UE1 during resource coordination scheduling, main plot is directly transmitted to UE1 receive the downlink data of UE1 from core net after..
Application example five: community 2 uplink load transships, selects UE1 to carry out business transfer, and community 2 is the secondary cell of UE1
As it is shown in fig. 7, the uplink service of UE1 is by main plot (community 1) and secondary cell (community 2 and community 3) shared under normal circumstances.Which part of UE1 uplink service is undertaken by main plot, and which part is undertaken by community 2 and community 3, is all uniformly coordinated by main plot.Main plot and secondary cell receive the upstream data of UE1 respectively, and the upstream data that secondary cell is received again sends main plot to, main plot send whole upstream datas of UE1 to core net.
After community 2 detects self traffic overload, UE1 is selected to carry out business transfer, owing to community 2 is the secondary cell of UE1, community 2 sends traffic overload instruction to the main plot (community 1) of UE1, informs the ID of community, main plot 2, the ID of UE1, the information such as service bearer information and traffic state, main plot will determine it is by main plot self according to self and the load condition of other secondary cell, or undertaken the uplink service of the UE1 originally undertaken by community 2 by other secondary cell.
Main plot judges that self load can not undertake the business in the instruction of described traffic overload again, by this traffic scheduling to other secondary cell (community 3), community 3 carries this business, it is ensured that the QoS of this business.The upstream data of UE1 will be issued main plot by it by main plot, and whole upstream datas of UE1 are sent to core net by main plot.
Application example six: community 2 downlink load is transshipped, selects UE1 to carry out business transfer, and community 2 is the secondary cell of UE1
As shown in Figure 8, downlink data is sent to the main plot (community 1) of UE1 by core net under normal circumstances, main plot carries out resource coordination scheduling, by main plot and the downlink service data of secondary cell (community 1 and community 2) shared UE1, and which is dispatched is to be passed to UE1 by secondary cell (community 1 and community 2), which is directly transmitted to UE1 by main plot.
When community 2 detects self traffic overload, selected UE1 carries out business transfer, owing to community 2 is the secondary cell of UE1, community 2 sends traffic overload instruction to the main plot (community 1) of UE1, inform the ID of community, main plot 2, the ID of UE1, the information such as service bearer information and traffic state, main plot will be according to self load condition with other secondary cell, determine it is that the downlink data of the UE1 originally undertaken by community 2 is undertaken by main plot oneself, or undertaken by other secondary cell.
Main plot judges that self load can not undertake the business in the instruction of described traffic overload again, by this traffic scheduling to other secondary cell (community 3), community 3 carries this business.After main plot receives the downlink data of the UE1 that core net issues, the downlink data undertaken by community 2 before is passed to community 3, community 3 issue UE1.
Alternatively, all or part of step of above-described embodiment can also use integrated circuit to realize, and these steps can be fabricated to integrated circuit modules one by one respectively, or the multiple modules in them or step are fabricated to single integrated circuit module realize.So, the present invention is not restricted to the combination of any specific hardware and software.
Each device/functional module/functional unit in above-described embodiment can use general calculating device to realize, and they can concentrate on single calculating device, it is also possible to is distributed on the network that multiple calculating device is formed.
When each device/functional module/functional unit in above-described embodiment is using the form realization of software function module and as independent production marketing or use, can be stored in a computer read/write memory medium.Computer read/write memory medium mentioned above can be read only memory, disk or CD etc..
The above; being only the detailed description of the invention of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should contain within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain described in claim.
Claims (8)
1. a cell load control method, it is characterised in that including:
When the first cell load overload, described first community selects one or more UE to carry out business transfer from the user equipment (UE) that it is serviced；
Transfer to selected UE business in described first community to serve in other communities that the multipoint cooperative CoMP cell of selected UE is concentrated；
Transfer to serve in other communities that the CoMP cell of selected UE is concentrated by selected UE business in described first community, including:
If described first community is the main plot that described CoMP cell is concentrated, the business of selected UE is transferred in the secondary cell that described CoMP cell is concentrated by described first community；
If described first community is the secondary cell that described CoMP cell is concentrated, described first community sends traffic overload instruction to the main plot that CoMP cell is concentrated, and notifies the selected UE business in described first community of described main plot transfer.
2. the method for claim 1, it is characterised in that select one or more UE to carry out business transfer from the UE that described first community is serviced, including:
Described first community selects one or more UE to form alternative UE queue according to business throughput and/or the priority of its UE serviced, and the business to the UE in alternative UE queue carries out transfer until the load of described first community is normal successively.
Method the most according to claim 1, it is characterised in that
If described first community is the main plot that described CoMP cell is concentrated, the business of selected UE is transferred in the secondary cell that described CoMP cell is concentrated by described first community, including:
Described first community is according to the load condition of the secondary cell of selected UE, the business of selected UE is transferred in one or more secondary cells that described CoMP cell is concentrated, and the physical resource receiving or sending the business datum of selected UE is informed the one or more secondary cell.
Method the most according to claim 1, it is characterised in that
The instruction of described traffic overload includes: the carrying information that the ID of described first community, the ID of selected UE, business information to be shifted for selected UE and selected UE are to be shifted；
After described main plot receives the instruction of described traffic overload, according to the load condition of self load condition and other secondary cells, selected UE business in described first community is transferred in described main plot and/or other secondary cells；If transferring in other secondary cells, the physical resource receiving or sending the business datum of selected UE is also informed other secondary cells described by the most described main plot.
5. a cell load controls device, it is characterised in that include that UE selects module and load shift module；
Described UE selects module, for when the traffic overload of the first community, selects one or more UE to be sent to load shift module from the UE that described first community is serviced；
Described load shift module, is used in other communities of CoMP cell concentration that the UE that described UE selects module selection business in described first community transfers to serve described UE；
If described first community is the main plot that described CoMP cell is concentrated, described load shift module, is for the business of UE selected by described UE selection module being transferred in the secondary cell that described CoMP cell is concentrated；
If described first community is to serve the secondary cell that described CoMP cell is concentrated, described load shift module, it is that the main plot for concentrating to CoMP cell sends traffic overload instruction, notifies that described main plot is shifted described UE and selected UE business in described first community selected by module.
6. device as claimed in claim 5, it is characterised in that
Described UE selects module, it is that business throughput and/or the priority of UE for being serviced according to described first community selects one or more UE to form alternative UE queue, successively the UE in alternative UE queue is sent to load shift module, until detecting that the load of described first community is under threshold value.
Device the most according to claim 5, it is characterised in that
If described first community is to serve the main plot that described CoMP cell is concentrated, described load shift module, it is for selecting the load condition of the secondary cell of UE selected by module according to described UE, the business of selected UE is transferred in one or more secondary cells that described CoMP cell is concentrated, and the physical resource receiving or sending the business datum of selected UE is informed the one or more secondary cell.
Device the most according to claim 5, it is characterised in that
The traffic overload instruction that described load shift module sends includes: the carrying information that the ID of described first community, the ID of selected UE, business information to be shifted for selected UE and selected UE are to be shifted；
Described load shift module, it is additionally operable to receive the traffic overload instruction of the transmission of the second community, according to the load condition of other secondary cells of UE selected by the load condition of the first community and described second community, the business in described second community of the UE selected by the second community is transferred in other secondary cells of UE selected by described first community and/or described second community；If transferring in other secondary cells of UE selected by described second community, it is additionally operable to inform other secondary cells of UE selected by described second community by receiving or sending the physical resource of the business datum of UE selected by described second community.
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| CN201110091183.9A CN102740360B (en) | 2011-04-12 | 2011-04-12 | A kind of cell load control method and device |
| PCT/CN2011/084351 WO2012139400A1 (en) | 2011-04-12 | 2011-12-21 | Cell load control method and device |
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| CN201110091183.9A CN102740360B (en) | 2011-04-12 | 2011-04-12 | A kind of cell load control method and device |
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| CN103828422A (en) * | 2012-12-31 | 2014-05-28 | 华为技术有限公司 | Method for balancing load and network control node |
| CN104170444B (en) * | 2013-10-21 | 2018-07-31 | 华为技术有限公司 | Dispatching method and base station |
| CN105874845B (en) * | 2013-12-19 | 2019-05-28 | 华为技术有限公司 | The method and apparatus for determining the performance indicator of communication network |
| CN105247941A (en) * | 2013-12-30 | 2016-01-13 | 华为技术有限公司 | Method and device for activating secondary cell, communication system, base station, and user equipment |
| WO2016074185A1 (en) * | 2014-11-13 | 2016-05-19 | Qualcomm Incorporated | Standalone carrier sense adaptive transmission (csat) in unlicensed spectrum |
| CN105208602B (en) * | 2015-10-16 | 2018-12-11 | 中国联合网络通信集团有限公司 | A kind of method and device of load balancing |
| US9998186B2 (en) * | 2017-01-02 | 2018-06-12 | Mediatek Singapore Pte. Ltd. | MU-MIMO for powersave devices |
| CN108668325B (en) * | 2017-12-22 | 2020-10-23 | 航天恒星科技有限公司 | User-level-energy-efficiency-oriented CoMP switching method based on LTE-A system |
| CN111246531B (en) * | 2018-11-28 | 2021-11-30 | 中国移动通信集团浙江有限公司 | Switching method and base station |
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| CN101080082A (en) * | 2006-05-22 | 2007-11-28 | 上海贝尔阿尔卡特股份有限公司 | Device and method for switching control via joint detection of multiple cell load |
| CN101772081A (en) * | 2008-12-31 | 2010-07-07 | 中兴通讯股份有限公司 | Method and system for dynamically balancing cell load in wireless network |
| CN102685776A (en) * | 2011-03-08 | 2012-09-19 | 中兴通讯股份有限公司 | Method for reducing cell load through CoMP technology and cell |
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| US8942165B2 (en) * | 2008-08-01 | 2015-01-27 | Qualcomm Incorporated | System and method for distributed multiple-input multiple-output (MIMO) in a wireless communication system |
| CN101415207B (en) * | 2008-12-04 | 2010-08-25 | 北京邮电大学 | Method, apparatus and base station for balancing load of honeycomb collaboration relay network |
| CN101939066B (en) * | 2009-04-27 | 2014-02-19 | 华为技术有限公司 | Configuring method, device and system for collaboration zone |
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| CN101080082A (en) * | 2006-05-22 | 2007-11-28 | 上海贝尔阿尔卡特股份有限公司 | Device and method for switching control via joint detection of multiple cell load |
| CN101772081A (en) * | 2008-12-31 | 2010-07-07 | 中兴通讯股份有限公司 | Method and system for dynamically balancing cell load in wireless network |
| CN102685776A (en) * | 2011-03-08 | 2012-09-19 | 中兴通讯股份有限公司 | Method for reducing cell load through CoMP technology and cell |
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| WO2012139400A1 (en) | 2012-10-18 |
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