CN101801030B - Method, device and system for realizing load balancing - Google Patents
Method, device and system for realizing load balancing Download PDFInfo
- Publication number
- CN101801030B CN101801030B CN2009100768922A CN200910076892A CN101801030B CN 101801030 B CN101801030 B CN 101801030B CN 2009100768922 A CN2009100768922 A CN 2009100768922A CN 200910076892 A CN200910076892 A CN 200910076892A CN 101801030 B CN101801030 B CN 101801030B
- Authority
- CN
- China
- Prior art keywords
- load
- loads
- determining
- base station
- reselection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 57
- 238000004891 communication Methods 0.000 claims description 63
- 238000005259 measurement Methods 0.000 claims description 16
- 230000007774 longterm Effects 0.000 claims description 13
- 238000012935 Averaging Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- 230000000737 periodic effect Effects 0.000 description 2
- 230000026676 system process Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- Mobile Radio Communication Systems (AREA)
Abstract
The invention discloses a method, a device and a system for realizing load balancing. The method comprises the following steps: acquiring loads of all cells under each base station in the system; determining load conditions of different frequency points in the system according to the loads of all cells under each base station in the system; and if frequency points under high load condition exist, performing load balancing adjustment on the load between the different frequency points in the system and informing UE in each cell of reading updated system messages. The method, the device and the system can automatically realize the load balancing between different systems.
Description
Technical Field
The invention relates to a communication technology, in particular to a method, a device and a system for realizing load balancing.
Background
When the load of one or more systems or some frequency points in the same system is high, some users in the system with heavy load can be transferred to the system with light load or the frequency points, so that the load balance among different frequency points of the multiple systems or the same system is realized, and the cell reselection and the handover among the systems can be used for solving the load balance among the systems. The load balance among the systems and among different frequency points is beneficial to improving the communication quality of users in each system and different frequency points, and the resources of each system can be fully utilized, so that the maximization of the resource utilization is achieved.
In a mobile communication system, when a UE in a communication state moves from one cell to another cell, or the link quality of a serving cell deteriorates, or the serving cell is overloaded, the UE is adjusted to another cell by load control, and the UE is continuously served by the other cell. The switching between different frequency points and different systems can be realized by adjusting related switching parameters.
In the existing 2G/3G network, the parameters for reselecting or switching to other systems are usually configured manually, and cannot be optimized and adjusted adaptively according to the actual situation of the network. In an LTE (long term evolution) system, there is no effective method for load balancing between different systems, and manual participation is required, which not only increases the cost of operation and maintenance, but also lacks flexibility.
Disclosure of Invention
The embodiment of the invention provides a method, a device and a system for realizing load balancing, so that the load balancing among different systems can be automatically realized.
Therefore, the embodiment of the invention provides the following technical scheme:
a method for realizing load balancing is based on a Long Term Evolution (LTE) system, and an operation management module is preset in the same communication system and is used for storing a reselection priority and a switching priority list and determining a priority order, and the method comprises the following steps:
acquiring the load of all cells under each base station in the system;
determining the load states of different frequency points in the system according to the loads of all cells under each base station in the system;
if the frequency point is in a high load state, load balance adjustment is carried out on loads among different frequency points in the system, and UE in each cell is informed to read updated system information;
the load balancing adjustment of the load among different frequency points in the system specifically comprises the following steps: determining new cell reselection and/or switching priority according to the load information of all frequency points in the system;
the determining of the new cell reselection and/or handover priority according to the load information of all frequency points in the system specifically includes: and reducing the reselection and/or switching priority of the frequency point in the heavy load state, and improving the reselection and/or switching priority of the frequency point in the normal load state.
A method for realizing load balancing is based on a Long Term Evolution (LTE) system, and an operation management module is preset in the same communication system and is used for storing a reselection priority and a switching priority list and determining a priority order, and the method comprises the following steps:
acquiring the load of all cells under each base station in the system;
determining the load state of the system according to the load of all cells under each base station in the system;
if the system is in a high load state, load balancing adjustment is carried out on loads among different systems, and UE in each cell is informed to read updated system information;
the load balancing adjustment of the loads among different systems specifically comprises the following steps: acquiring the load states of other systems, and determining new cell reselection and/or switching priority according to the load states of the system and other systems;
the determining of the new cell reselection and/or handover priority according to the load status of the present system and other systems specifically includes: the reselection and/or handover priority of the system in the heavy load state is lowered, and the reselection and/or handover priority of the system in the normal load state is raised.
A device for realizing load balancing is based on a Long Term Evolution (LTE) system, and an operation management module is preset in the same communication system and is used for storing a reselection priority and a switching priority list and determining a priority order, and the device comprises:
an obtaining unit, configured to obtain loads of all cells under each base station in the system;
a frequency point load state determining unit, configured to determine load states of different frequency points in the system according to loads of all cells under each base station in the system;
the first balancing unit is used for determining the frequency points in a high load state in the frequency point load state determining unit and carrying out load balancing adjustment on loads among different frequency points in the system;
a notifying unit, configured to notify the UE in each cell to read the updated system message in the process of performing load balancing adjustment by the first balancing unit;
the load balancing adjustment of the first balancing unit to the loads between different frequency points in the system specifically comprises the following steps: determining new cell reselection and/or switching priority according to the load information of all frequency points in the system;
the first balancing unit determines a new cell reselection and/or switching priority according to the load information of all frequency points in the system specifically as follows: and reducing the reselection and/or switching priority of the frequency point in the heavy load state, and improving the reselection and/or switching priority of the frequency point in the normal load state.
A device for realizing load balancing is based on a Long Term Evolution (LTE) system, and an operation management module is preset in the same communication system and is used for storing a reselection priority and a switching priority list and determining a priority order, and the device comprises:
an obtaining unit, configured to obtain loads of all cells under each base station in the system;
a system load state determining unit, configured to determine a load state of the system according to loads of all cells under each base station in the system;
the second balancing unit is used for determining that the system is in a high-load state in the system load state determining unit and carrying out load balancing adjustment on loads among different systems;
a notifying unit, configured to notify the UE in each cell to read the updated system message in the process of performing load balancing adjustment by the second balancing unit;
the second equalizing unit includes:
the information exchange subunit is used for acquiring the load states of other systems;
a second adjusting subunit, configured to determine a new cell reselection and/or handover priority according to the load statuses of the present system and other systems;
the determining, by the second adjusting subunit, the new cell reselection and/or handover priority according to the load states of the present system and other systems specifically includes: the reselection and/or handover priority of the system in the heavy load state is lowered, and the reselection and/or handover priority of the system in the normal load state is raised.
A system for realizing load balancing is based on a long term evolution system (LTE), and comprises the following components: the operation management module and the plurality of base stations are positioned under the same communication system;
the base station is used for measuring the load of all cells under the base station periodically or according to the notification of the operation management module and reporting the measurement result to the operation management module;
the operation management module is used for acquiring the load of all cells under each base station in the communication system according to the report of each base station; determining the load states of different frequency points in the communication system according to the loads of all cells under each base station in the communication system; when the frequency point is in a high load state, load balance adjustment is carried out on loads among different frequency points in the communication system, and UE in each cell is informed to read updated system information;
the operation management module performs load balancing adjustment on loads among different frequency points in the system specifically comprises the following steps: determining new cell reselection and/or switching priority according to the load information of all frequency points in the system;
the operation management module determines new cell reselection and/or switching priorities according to the load information of all frequency points in the system specifically as follows: and reducing the reselection and/or switching priority of the frequency point in the heavy load state, and improving the reselection and/or switching priority of the frequency point in the normal load state.
A system for realizing load balancing is based on a long term evolution system (LTE), and comprises the following components: the operation management module and the plurality of base stations are positioned under the same communication system;
the base station is used for measuring the load of all cells under the base station periodically or according to the notification of the operation management module and reporting the measurement result to the operation management module;
the operation management module is used for determining the load state of the communication system according to the load of all cells under each base station in the communication system; when the communication system is in a high-load state, load balance adjustment is carried out on loads among different systems, and UE in each cell is informed to read updated system information;
the operation management module performs load balancing adjustment on loads among different systems specifically as follows: acquiring the load states of other systems, and determining new cell reselection and/or switching priority according to the load states of the system and other systems;
the operation management module determines a new cell reselection and/or handover priority according to the load states of the system and other systems specifically as follows: the reselection and/or handover priority of the system in the heavy load state is lowered, and the reselection and/or handover priority of the system in the normal load state is raised.
The method, the device and the system for realizing load balancing in the embodiment of the invention utilize the load information reported by the base station to acquire the load of all cells under each base station in each system aiming at different frequency points in different systems or the same system, determine the load state of each system, adaptively adjust the load balancing if the system in a high load state exists, automatically realize the load balancing among different systems without manual participation and reduce the operation and maintenance cost.
Drawings
FIG. 1 is a flow chart of a method for implementing load balancing according to an embodiment of the present invention;
FIG. 2 is another flow chart of a method for implementing load balancing according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an apparatus for implementing load balancing according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an apparatus for implementing load balancing according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of an apparatus for implementing load balancing according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a system for implementing load balancing according to an embodiment of the present invention.
Detailed Description
In order to make the technical field of the invention better understand the scheme of the embodiment of the invention, the embodiment of the invention is further described in detail with reference to the drawings and the implementation mode.
The method for realizing load balancing in the embodiment of the invention aims at different frequency points in the same system, and when the load of a certain frequency point is overweight, the reselection and switching priority among the different frequency points of the system is adjusted in the system, so that part of users are transferred to the frequency points with relatively lighter loads, and the capacity of the system is improved. Furthermore, aiming at different systems, when the load in a certain system is overweight, partial users are transferred to the system with lighter load by adjusting the reselection and switching priority among the systems, the load of the system is reduced, and the capacity of the whole system is improved.
An operation management module may be separately provided in each system to implement control of load balancing, and a list of reselection priorities and handover priorities is stored in the operation management module. Different reselection priorities are adopted by different systems and different frequency points. The order of priority determination in the operation management module may represent reselection priorities in the form of table 1, where a smaller sequence number of priority indicates a higher priority:
| priority order number | System for providing a visual indication of the location of a userFrequency point name |
| 1 | LTE TDD frequency point 1 |
| 2 | LTE TDD frequency point 2 |
| ... | ... |
| N | LTE TDD frequency point N |
| N+1 | TD-SCDMA frequency point i |
| ... | ... |
| N+M | TD-SCDMA frequency point i + M |
| N+M+1 | GSM frequency point j |
| ... | ... |
TABLE 1
Different systems and different frequency points adopt different switching priorities, and the switching priorities can be in different orders from the reselection priorities. In the operations management module takes a form similar to table 1.
The present invention will be described in detail below by way of examples.
As shown in fig. 1, it is a flowchart of a method for implementing load balancing according to an embodiment of the present invention, and the method includes the following steps:
The operation management module can be respectively arranged in each system to realize the control of load balance, specifically, each base station in each system can periodically count the load of all cells under the base station and report the statistical result to the operation management module of the system, so that the operation management module can control the load balance according to the information reported by each base station; of course, each base station may also perform aperiodic statistics and report, for example, when the operation management module determines that load balancing is needed, each base station in the system is notified to perform cell load statistics and report.
And step 102, determining the load states of different frequency points in the system according to the loads of all cells under each base station in the system.
For a certain system, an operation management module of the system calculates the average load of different frequency points of the system according to the results reported by all base stations in the system, and determines whether the frequency points are in a heavy load state; specifically, the load of all cells under different frequency points in the system is averaged to obtain the average load of the frequency points; if the average load of the frequency point exceeds a preset load threshold of the frequency point, determining that the frequency point is in a heavy load state; otherwise, the frequency point is determined to be in a normal load state.
It should be noted that the load thresholds of different frequency points may be the same or different.
And 103, if the frequency point in the high load state exists, carrying out load balance adjustment on loads among different frequency points in a system to which the frequency point belongs.
The operation management module in the system can determine new cell reselection and/or switching priority according to the load information of the frequency point and other frequency points in the system to which the frequency point belongs. Specifically, the reselection and/or handover priority of the system in the heavy load state is lowered, and the reselection and/or handover priority of the system in the normal load state is raised.
And 104, informing the UE in each cell to read the updated system message.
Specifically, the operation management module may send the updated system message to each base station, and then the base station notifies the corresponding UE. The UE in the connected state can be informed to read the updated system message through the measurement control message, and the UE in the idle state can be informed to read the updated system message through the paging message.
In order to adapt to the technical characteristics of future SON, the method of the embodiment of the present invention may further include the following steps:
starting a timer when load balance adjustment is carried out on loads among different frequency points; and if the load balancing adjustment is not completed after the timer is overtime, restoring the cell reselection and/or switching priority to the state before the load balancing adjustment, and informing the UE in each cell to read the updated system message.
It should be noted that after each load balancing adjustment or the cell reselection and/or handover priority is restored to the state before the load balancing adjustment, the UE in each cell needs to be notified to read the updated system message, where the system message includes corresponding new cell reselection and/or handover priority information, and the UE performs cell reselection and/or handover according to the information, and the specific process is the same as that in the prior art, and is not described herein again.
The following describes in detail the implementation process of load balancing among different frequency points in the method of the present invention with specific embodiments.
It is assumed that in the LTE system, there are N frequency points, which are referred to as frequency points 1, 2.. N, respectively.
The base station of each system carries out periodic measurement, the uplink and downlink loads are respectively counted according to the GBR (guaranteed bit rate) service resource utilization rate plus the resource utilization rate required by the PBR (prioritized bit rate) of the NGBR (non-guaranteed bit rate) service in the uplink direction, and the measured result is reported to the operation management module of the system.
And the operation management module respectively counts the average load of the uplink and the downlink of each frequency point according to different frequency points. When the average uplink or downlink load of a certain frequency point exceeds the load threshold UpTh or DownTh of the frequency point, the frequency point is considered to be in a heavy load state, otherwise, the frequency point is in a normal state. The load thresholds of different frequency points in the system may be different.
At this time, it is assumed that the downlink load of the frequency point 1 in the LTE system is greater than the load threshold DownTh1 of the frequency point 1, so the state of the frequency point 1 is determined as a heavy load state, and at this time, the operation management module determines that other frequency points are in a normal load state according to the information reported by each base station.
The operation management module adopts the principle of reducing the reselection priority and the switching priority of the frequency point 1 and improving the reselection and switching priorities of other frequency points, wherein the specific sequence of the adjusted reselection and switching priorities is jointly determined by the load conditions of all the frequency points. After the calculation is finished, the operation management module informs all base stations of updating parameters related to the reselection priority and the switching priority, and each base station informs all the UE in the connection state through a measurement control message and informs the UE in the idle state of reading the updated system message through a paging message.
And after the adjustment is finished, waiting for the arrival of the next measurement time, and continuously repeating the process.
It should be noted that if all the frequency points are in a heavy load state at a certain time, the load balancing process is not performed.
A timer may be set for each frequency point, which aims to complete the adjustment of the load balance of the frequency point within a certain time according to the requirements of SON, and if the time is exceeded, the adjustment is abandoned and the state before the adjustment is recovered.
Therefore, the method of the embodiment of the invention can automatically realize the load balance among different frequency points without manual participation by utilizing the reselection and/or switching priority of different frequency points in the load information self-adaptive adjustment system reported by the base station, thereby reducing the operation and maintenance cost.
Fig. 2 is another flowchart of a method for implementing load balancing according to an embodiment of the present invention, which includes the following steps:
In the LTE system, the load includes three elements: radio load (i.e., load on the air interface), load of the transport network layer, hardware load of the node. Wherein the radio load is determined based on PRB (physical resource block) occupancy of each QCI (quality of service class identity).
The operation management module can be respectively arranged in each system to realize the control of load balance, specifically, each base station in each system can periodically count the load of all cells under the base station and report the statistical result to the operation management module of the system, so that the operation management module can control the load balance according to the information reported by each base station; of course, each base station may also perform aperiodic statistics and report, for example, when the operation management module determines that load balancing is needed, each base station in the system is notified to perform cell load statistics and report.
For each system, the operation management module of the system calculates the average load of the system according to the results reported by all base stations in the system and determines whether the system is in a heavy load state; specifically, the load of all cells under each base station in the system is averaged to obtain the average load of the system; if the average load of the system exceeds a preset load threshold of the system, determining that the system is in a heavy load state; otherwise, the system is determined to be in a normal load state.
It should be noted that the load thresholds of different systems may be the same or different;
and step 203, if the system is in a high load state, performing load balancing adjustment on loads among different systems.
The operation management module in the system can exchange information with the operation management module in other systems to obtain the load information of other systems, and determine new cell reselection and/or switching priority according to the load information of the system and other systems.
Specifically, the reselection and/or handover priority of the system in the heavy load state is lowered, and the reselection and/or handover priority of the system in the normal load state is raised.
Specifically, the operation management module may send the updated system message to each base station, and then the base station notifies the corresponding UE. The UE in the connected state can be informed to read the updated system message through the measurement control message, and the UE in the idle state can be informed to read the updated system message through the paging message.
In order to adapt to the technical characteristics of future SON (self-organizing network), the method of the embodiment of the present invention may further include the following steps:
starting a timer when load balance adjustment is carried out on loads among different systems; and if the load balancing adjustment is not completed after the timer is overtime, restoring the cell reselection and/or switching priority to the state before the load balancing adjustment, and informing the UE in each cell to read the updated system message.
It should be noted that after each load balancing adjustment or the cell reselection and/or handover priority is restored to the state before the load balancing adjustment, the UE in each cell needs to be notified to read the updated system message, where the system message includes corresponding new cell reselection and/or handover priority information, and the UE performs cell reselection and/or handover according to the information, and the specific process is the same as that in the prior art, and is not described herein again.
The following describes in detail the implementation process of load balancing among different systems in the method of the present invention with specific embodiments.
Assume that there are N systems, referred to as systems 1, 2.. N, respectively, where each system has a different frequency point.
The base station of each system carries out periodic measurement, the uplink and downlink loads are respectively counted according to the GBR service resource utilization rate and the resource utilization rate required by the NGBR service PBR in the uplink direction and the GBR service resource utilization rate in the downlink direction, and the measured result is reported to an operation management module of the system.
The operation management module in each system averages the uplink and downlink loads of the cell in the system, and calculates the uplink and downlink average cell load of the system.
When the average uplink or downlink load of a certain system exceeds the load threshold UpTh1 or DownTh1 of a certain cell layer, the certain cell layer is considered to be in a heavy load state, that is, the system process is in the heavy load state, otherwise, the system process is in a normal state. The loading threshold may be different for each system.
It is assumed that the downlink load of the system 1 is greater than the load threshold DownTh1 of the system 1 at this time, so the state of the system 1 is determined as a heavy load state, and other systems are in a normal load state at this time. The operation management module of the system 1 exchanges load information with the operation management modules of other systems, and performs load balancing between the systems. Specifically, the reselection priority and the handover priority of the system 1 are reduced, the reselection priorities and the handover priorities of other systems are increased, the specific adjustment of the reselection priorities and the handover priority orders of the systems is calculated and obtained according to the average load information of each system, and the operation management module of each system notifies the adjusted parameters to the base station in the system, and then notifies the base station to the UE needing to adjust the parameters. For example, both UTRAN (universal terrestrial radio access network) system and EUTRAN (evolved UTRAN) system notify all connected UEs through measurement control message, and notify UEs in idle state to read updated system message through paging message.
And after the adjustment is finished, waiting for the arrival of the next measurement time, and continuously repeating the process.
It should be noted that, when each system performs load balancing, a timer may be started in the operation management module, and the purpose of the timer is to complete the adjustment of the load balancing of the system within a certain time according to the requirements of the SON (self organizing network), and if the time is exceeded, the adjustment is abandoned and the state before the adjustment is recovered.
Therefore, the method of the embodiment of the invention can automatically realize the load balance among different systems by utilizing the load information reported by the base station to adaptively adjust the reselection and/or switching priority of the systems without manual participation, thereby reducing the operation and maintenance cost.
It should be noted that, according to different application environments, in a specific application, load balancing may be performed only between different frequency points in a certain system, or load balancing may be performed between different systems when there are multiple systems, of course, load balancing may also be performed for different systems and different frequency points in the same system at the same time, and a load balancing adjustment process is the same as that in fig. 1 and fig. 2, and is not described herein again.
Fig. 3 is a schematic structural diagram of an apparatus for implementing load balancing according to an embodiment of the present invention.
In this embodiment, the apparatus comprises: an acquisition unit 301, a frequency point load state determination unit 302, a first balancing unit 303, and a notification unit 304. Wherein,
an obtaining unit 301, configured to obtain loads of all cells under each base station in the system;
a frequency point load state determining unit 302, configured to determine load states of different frequency points in the system according to loads of all cells under each base station in the system;
a first balancing unit 303, configured to determine that there is a frequency point in a high load state in the frequency point load state determining unit 302, and perform load balancing adjustment on loads between different frequency points in the system;
a notifying unit 304, configured to notify the UE in each cell to read the updated system message after the first balancing unit 303 completes the load balancing adjustment.
In this embodiment of the present invention, an preferable structure of the frequency point load status determining unit 302 includes: a first calculating subunit 321 and a first judging subunit 322. The first calculating subunit 321 is configured to average the loads of all cells under each frequency point in the system, and obtain an average load of the frequency point; the first judging subunit 322 is configured to judge a load state of each frequency point according to the average load of each frequency point, determine that the frequency point is in a heavy load state if the average load of the frequency point exceeds a preset load threshold of the frequency point, and otherwise determine that the frequency point is in a normal load state.
In this embodiment of the present invention, the first balancing unit 303 determines a new cell reselection and/or switching priority according to the load information of the frequency point and other frequency points in the system to which the frequency point belongs.
Of course, the frequency point load status determination unit 302 in the embodiment of the present invention is not limited to the above structure, and may have other structural forms according to the idea of the present invention.
The device of the embodiment of the invention can self-adaptively adjust the reselection and/or switching priority of the frequency point by utilizing the load information reported by the base station, can automatically realize the load balance among different systems without manual participation, and reduces the operation and maintenance cost. The specific process can refer to the description in the method of the embodiment of the present invention.
It should be noted that, in the apparatus according to the embodiment of the present invention, the apparatus may further include: a timer 305, where the timer 305 is started when the first balancing unit 303 performs load balancing adjustment on loads between different systems, and is closed after a time-out. In this way, the first balancing unit 303 is further configured to, after the timer 305 expires, if the load balancing adjustment is still not completed, restore the cell reselection and/or handover priority to the state before the load balancing adjustment. The notifying unit 304 notifies the UE to read the updated system message after the first balancing unit 303 restores the cell reselection and/or the handover priority to the state before the load balancing adjustment. The adjustment of the load balancing can thus be done within a certain time according to the requirements of the SON, and if this time is exceeded, the adjustment is aborted and the state before the adjustment is restored.
Fig. 4 is a schematic structural diagram of an apparatus for implementing load balancing according to an embodiment of the present invention.
In this embodiment, the apparatus comprises: acquisition section 401, system load status determination section 402, second balancing section 403, and notification section 404. Wherein,
an obtaining unit 401, configured to obtain loads of all cells under each base station in the system;
a system load status determining unit 402, configured to determine a load status of the system according to loads of all cells under each base station in the system;
a second balancing unit 403, configured to determine that the system is in a high load state in the system load state determining unit 402, and perform load balancing adjustment on loads between different systems;
a notifying unit 404, configured to notify the UE in each cell to read the updated system message during the process of performing load balancing adjustment by the second balancing unit 403.
In the embodiment of the present invention, a preferred structure of the system load status determining unit 402 includes: a second calculating subunit 421 and a second judging subunit 422. The second calculating subunit 421 is configured to average the loads of all cells under each base station in the system, so as to obtain an average load of the system; the second judging subunit 422 is configured to judge a load state of the system according to the average load of the system, determine that the system is in a heavy load state if the average load of the system exceeds a preset load threshold of the system, and determine that the system is in a normal load state if the average load of the system does not exceed the preset load threshold of the system.
In the embodiment of the present invention, a preferred structure of the second equalizing unit 403 includes: an information exchange subunit 431 and a second adjustment subunit 432. The information exchange subunit 431 is configured to obtain a load state of another system; a second adjusting subunit 432, configured to determine a new cell reselection and/or handover priority according to the load status of the present system and other systems.
Of course, the system load status determining unit 402 and the second balancing unit 403 in the embodiment of the present invention are not limited to the above-mentioned structure, and other structures may be adopted according to the idea of the present invention.
The device of the embodiment of the invention can self-adaptively adjust the reselection and/or switching priority of the system by utilizing the load information reported by the base station, can automatically realize the load balance among different systems without manual participation, and reduces the operation and maintenance cost. The specific process can refer to the description in the method of the embodiment of the present invention.
It should be noted that, in the apparatus according to the embodiment of the present invention, the apparatus may further include: and a timer 405, where the timer 405 is started when the second balancing unit 403 performs load balancing adjustment on loads between different systems, and is closed after a timeout. In this way, the second adjusting subunit 432 is further configured to, after the timer 405 expires, if the load balancing adjustment is still not completed, restore the cell reselection and/or the handover priority to the state before the load balancing adjustment. The notifying unit 404 notifies the UE to read the updated system message after the second adjusting subunit 432 recovers the cell reselection and/or the handover priority to the state before the load balancing adjustment. The adjustment of the load balancing can thus be done within a certain time according to the requirements of the SON, and if this time is exceeded, the adjustment is aborted and the state before the adjustment is restored.
It should be noted that, according to different application environments, in a specific application, load balancing may be performed only between different systems, or load balancing may be performed between different frequency points of the same system, or load balancing may be performed for different systems and different frequency points of the same system at the same time.
Fig. 5 is a schematic structural diagram of an apparatus for implementing load balancing according to an embodiment of the present invention.
In this embodiment, the apparatus comprises: the device comprises an acquisition unit 501, a frequency point load state determination unit 502, a first balancing unit 503, a notification unit 504, a system load state determination unit 505 and a second balancing unit 506. Wherein:
an obtaining unit 501, configured to obtain loads of all cells under each base station in the system;
a frequency point load state determining unit 502, configured to determine a load state of the system according to loads of all cells under each base station in the system;
a first balancing unit 503, configured to determine that there is a system in a high load state in the system load state determining unit 502, and perform load balancing adjustment on loads between different systems;
a frequency point load state determining unit 505, configured to determine load states of different frequency points in each system according to loads of all cells under each base station in each system;
a second balancing unit 506, configured to determine that there is a frequency point in a high load state in the frequency point load state determining unit 505, and perform load balancing adjustment on loads between different frequency points in a system to which the frequency point belongs;
a notifying unit 504, configured to notify the UE in each cell to read the updated system message after the first balancing unit 503 or the second balancing unit 506 completes the load balancing adjustment.
The device of the embodiment of the invention can automatically realize the load balance among different systems and among different frequency points of the same system, thereby reducing the operation and maintenance cost.
For example, the system load state determining unit 502 and the frequency point load state determining unit 505 may be integrated into a whole, and the first balancing unit 503 and the second balancing unit 506 may be integrated into a whole.
Fig. 6 is a schematic structural diagram of a system for implementing load balancing according to an embodiment of the present invention.
The system comprises: an operation management module 601 and a plurality of base stations under the same communication system, two base stations being shown in fig. 6 for clarity of illustration: base station 602 and base station 603.
In this embodiment, the base stations 602 and 603 are configured to measure the loads of all cells under the base station according to the notification of the operation management module 601 or periodically, and report the measurement result to the operation management module 601; the operation management module 601 is configured to obtain the loads of all cells under each base station in the communication system according to the report of each base station; determining the load states of different frequency points in the communication system according to the loads of all cells under each base station in the communication system; and when the frequency point in the high load state exists, the load balance adjustment is carried out on the load among different frequency points in the communication system, and the UE in each cell is informed to read the updated system message.
In this embodiment, the operation management module 601 may be further configured to determine a load state of the communication system according to loads of all cells under each base station in the communication system; and when the communication system is in a high load state, load balancing adjustment is carried out on loads among different systems.
The structure of the operation management module 601 may be the same as that of the apparatus shown in fig. 3 or 5, and will not be described in detail herein.
That is, in an environment where a plurality of communication systems coexist, one operation management module needs to be provided for each communication system. The operation management module of each communication system periodically receives the load information reported by each base station in the communication system. And the operation management module counts the average system load of the communication system and the average load of different frequency points in the communication system. When the load of a communication system exceeds the load threshold of the communication system, the communication system is in a heavy load state. At this time, the operation management module of the communication system exchanges load information with the operation management modules of other systems to perform load balancing between the systems, and the operation management module of each system calculates new reselection and switching priorities respectively. When an operation management module of a communication system finds that some frequency points in the communication system are in a heavy load state, load balancing among different frequency points of the same system is carried out, and the operation management module of the system calculates new reselection and switching priorities of different frequency points. The principle of load balancing is that the reselection priority of a system or a frequency point with heavy load is reduced, the switching priority is reduced, and the reselection priority and the switching priority of a system or a frequency point with light load are improved. Then, the operation management module in each communication system transmits the updated information to the UE through the base station in the communication system.
Therefore, in the system of the embodiment of the invention, when the load of a certain frequency point in the communication system is too heavy, part of users are transferred to the frequency point with relatively light load by adjusting the reselection and switching priorities among different frequency points of the system in the communication system, so that the capacity of the system is improved. Furthermore, under the environment of coexistence of a plurality of communication systems, when the load in a certain system is too heavy, the reselection and switching priority between the systems can be adaptively adjusted, so that part of users are transferred to the communication system with relatively light load, the load of the communication system is reduced, and the capacity of the whole system is improved.
An embodiment of the present invention further provides a system for implementing load balancing, where the system includes: the operation management module and a plurality of base stations are under the same communication system. Wherein:
the base station is used for measuring the load of all cells under the base station periodically or according to the notification of the operation management module and reporting the measurement result to the operation management module;
the operation management module is used for determining the load state of the communication system according to the load of all cells under each base station in the communication system; and when the communication system is in a high load state, load balance adjustment is carried out on loads among different systems, and UE in each cell is informed to read updated system information.
The structure of the operation management module 601 may be the same as that of the apparatus shown in fig. 4, and will not be described in detail herein.
Therefore, the system of the embodiment of the invention can adaptively adjust the reselection and switching priority among the systems when the load in a certain system is overweight, so that part of users are transferred to the system with lighter load, the load of the system is reduced, and the capacity of the whole system is improved.
The above detailed description of the embodiments of the present invention has been presented, and the present invention has been described in terms of specific embodiments, but is only intended to facilitate the understanding of the method, apparatus, and system of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (21)
1. A method for realizing load balancing is based on a long term evolution system (LTE), and is characterized in that an operation management module is preset in the same communication system, and the operation management module is used for storing a reselection priority and a switching priority list and determining a priority order, and the method comprises the following steps:
acquiring the load of all cells under each base station in the system;
determining the load states of different frequency points in the system according to the loads of all cells under each base station in the system;
if the frequency point is in a high load state, load balance adjustment is carried out on loads among different frequency points in the system, and UE in each cell is informed to read updated system information;
the load balancing adjustment of the load among different frequency points in the system specifically comprises the following steps: determining new cell reselection and/or switching priority according to the load information of all frequency points in the system;
the determining of the new cell reselection and/or handover priority according to the load information of all frequency points in the system specifically includes: and reducing the reselection and/or switching priority of the frequency point in the heavy load state, and improving the reselection and/or switching priority of the frequency point in the normal load state.
2. The method according to claim 1, wherein the determining the load states of different frequency points in the system according to the loads of all cells under each base station in the system comprises:
for each frequency point in the system, averaging the loads of all cells under the frequency point to obtain the average load of the frequency point;
if the average load of the frequency point exceeds a preset load threshold of the frequency point, determining that the frequency point is in a heavy load state; otherwise, the frequency point is determined to be in a normal load state.
3. The method of claim 1, further comprising:
when a plurality of different systems exist, determining the load state of the system according to the load of all cells under each base station in the system;
and if the system is in a high-load state, performing load balancing adjustment on loads among different systems, and notifying UE (user equipment) in each cell to read the updated system message.
4. The method according to any one of claims 1 to 3, further comprising:
and if the load balancing adjustment is not completed within the preset time, restoring the cell reselection and/or switching priority to the state before the load balancing adjustment, and informing the UE in each cell to read the updated system message.
5. The method of claim 1, wherein notifying the UE in each cell to read the updated system message comprises:
informing the UE in the connection state to read the updated system message through the measurement control message;
and informing the UE in the idle state to read the updated system message through a paging message.
6. The method of claim 1, further comprising:
and the UE in each cell performs cell switching according to the updated system message.
7. A method for realizing load balancing is based on a long term evolution system (LTE), and is characterized in that an operation management module is preset in the same communication system, and the operation management module is used for storing a reselection priority and a switching priority list and determining a priority order, and the method comprises the following steps:
acquiring the load of all cells under each base station in the system;
determining the load state of the system according to the load of all cells under each base station in the system;
if the system is in a high load state, load balancing adjustment is carried out on loads among different systems, and UE in each cell is informed to read updated system information;
the load balancing adjustment of the loads among different systems specifically comprises the following steps: acquiring the load states of other systems, and determining new cell reselection and/or switching priority according to the load states of the system and other systems;
the determining of the new cell reselection and/or handover priority according to the load status of the present system and other systems specifically includes: the reselection and/or handover priority of the system in the heavy load state is lowered, and the reselection and/or handover priority of the system in the normal load state is raised.
8. The method of claim 7, wherein the determining the load status of the system according to the loads of all cells under each base station in the system comprises:
averaging the load of all cells under each base station in the system to obtain the average load of the system;
if the average load of the system exceeds a preset load threshold of the system, determining that the system is in a heavy load state; otherwise, the system is determined to be in a normal load state.
9. The method according to any one of claims 7 to 8, further comprising:
and if the load balancing adjustment is not completed within the preset time, restoring the cell reselection and/or switching priority to the state before the load balancing adjustment, and informing the UE in each cell to read the updated system message.
10. The method of claim 7, wherein notifying the UE in each cell to read the updated system message comprises:
informing the UE in the connection state to read the updated system message through the measurement control message;
and informing the UE in the idle state to read the updated system message through a paging message.
11. The method of claim 7, further comprising:
and the UE in each cell performs cell switching according to the updated system message.
12. An apparatus for implementing load balancing based on Long Term Evolution (LTE) system, wherein an operation management module is preset in the same communication system, and the operation management module is used for storing reselection priorities and switching priority lists and determining priority sequences, and the apparatus comprises:
an obtaining unit, configured to obtain loads of all cells under each base station in the system;
a frequency point load state determining unit, configured to determine load states of different frequency points in the system according to loads of all cells under each base station in the system;
the first balancing unit is used for determining the frequency points in a high load state in the frequency point load state determining unit and carrying out load balancing adjustment on loads among different frequency points in the system;
a notifying unit, configured to notify the UE in each cell to read the updated system message in the process of performing load balancing adjustment by the first balancing unit;
the load balancing adjustment of the first balancing unit to the loads between different frequency points in the system specifically comprises the following steps: determining new cell reselection and/or switching priority according to the load information of all frequency points in the system;
the first balancing unit determines a new cell reselection and/or switching priority according to the load information of all frequency points in the system specifically as follows: and reducing the reselection and/or switching priority of the frequency point in the heavy load state, and improving the reselection and/or switching priority of the frequency point in the normal load state.
13. The apparatus of claim 12, wherein the frequency point load status determining unit comprises:
the first calculating subunit is used for averaging the loads of all cells under each frequency point in the system to obtain the average load of the frequency point;
the first judging subunit is used for judging the load state of each frequency point according to the average load of each frequency point, if the average load of the frequency point exceeds a preset load threshold of the frequency point, determining that the frequency point is in a heavy load state, and otherwise, determining that the frequency point is in a normal load state.
14. The apparatus of claim 12, further comprising:
a system load state determining unit, configured to determine a load state of the system according to loads of all cells under each base station in the system;
the second balancing unit is used for determining that the system is in a high-load state in the system load state determining unit and carrying out load balancing adjustment on loads among different systems;
the notifying unit is further configured to notify the UE in each cell to read the updated system message in the process of performing load balancing adjustment by the second balancing unit.
15. The apparatus of claim 14, further comprising:
the timer is started when the first balancing unit performs load balancing adjustment on loads among different systems or when the second balancing unit performs load balancing adjustment on loads among different frequency points, and is closed after timeout;
the first balancing unit or the second balancing unit is further configured to, after the timer expires, if the load balancing adjustment is still not completed, restore the cell reselection and/or the handover priority to a state before the load balancing adjustment.
16. An apparatus for implementing load balancing based on Long Term Evolution (LTE) system, wherein an operation management module is preset in the same communication system, and the operation management module is used for storing reselection priorities and switching priority lists and determining priority sequences, and the apparatus comprises:
an obtaining unit, configured to obtain loads of all cells under each base station in the system;
a system load state determining unit, configured to determine a load state of the system according to loads of all cells under each base station in the system;
the second balancing unit is used for determining that the system is in a high-load state in the system load state determining unit and carrying out load balancing adjustment on loads among different systems;
a notifying unit, configured to notify the UE in each cell to read the updated system message in the process of performing load balancing adjustment by the second balancing unit;
the second equalizing unit includes:
the information exchange subunit is used for acquiring the load states of other systems;
a second adjusting subunit, configured to determine a new cell reselection and/or handover priority according to the load statuses of the present system and other systems;
the determining, by the second adjusting subunit, the new cell reselection and/or handover priority according to the load states of the present system and other systems specifically includes: the reselection and/or handover priority of the system in the heavy load state is lowered, and the reselection and/or handover priority of the system in the normal load state is raised.
17. The apparatus of claim 16, wherein the system load status determining unit comprises:
a second calculating subunit, configured to average the loads of all cells under each base station in the system, so as to obtain an average load of the system;
and the second judging subunit is used for judging the load state of the system according to the average load of the system, determining that the system is in a heavy load state if the average load of the system exceeds a preset load threshold of the system, and otherwise determining that the system is in a normal load state.
18. The apparatus of any one of claims 16 to 17, further comprising:
the timer is started when the second balancing unit carries out load balancing adjustment on loads among different systems and is closed after timeout;
the second adjusting subunit is further configured to, after the timer expires, if the load balancing adjustment is still not completed, restore the cell reselection and/or the handover priority to the state before the load balancing adjustment.
19. A system for realizing load balancing is based on a long term evolution system (LTE), and is characterized by comprising the following steps: the operation management module and the plurality of base stations are positioned under the same communication system;
the base station is used for measuring the load of all cells under the base station periodically or according to the notification of the operation management module and reporting the measurement result to the operation management module;
the operation management module is used for acquiring the load of all cells under each base station in the communication system according to the report of each base station; determining the load states of different frequency points in the communication system according to the loads of all cells under each base station in the communication system; when the frequency point is in a high load state, load balance adjustment is carried out on loads among different frequency points in the communication system, and UE in each cell is informed to read updated system information;
the operation management module performs load balancing adjustment on loads among different frequency points in the system specifically comprises the following steps: determining new cell reselection and/or switching priority according to the load information of all frequency points in the system;
the operation management module determines new cell reselection and/or switching priorities according to the load information of all frequency points in the system specifically as follows: and reducing the reselection and/or switching priority of the frequency point in the heavy load state, and improving the reselection and/or switching priority of the frequency point in the normal load state.
20. The system of claim 19,
the operation management module is further configured to determine a load state of the communication system according to loads of all cells under each base station in the communication system; and when the communication system is in a high load state, load balancing adjustment is carried out on loads among different systems.
21. A system for realizing load balancing is based on a long term evolution system (LTE), and is characterized by comprising the following steps: the operation management module and the plurality of base stations are positioned under the same communication system;
the base station is used for measuring the load of all cells under the base station periodically or according to the notification of the operation management module and reporting the measurement result to the operation management module;
the operation management module is used for determining the load state of the communication system according to the load of all cells under each base station in the communication system; when the communication system is in a high-load state, load balance adjustment is carried out on loads among different systems, and UE in each cell is informed to read updated system information;
the operation management module performs load balancing adjustment on loads among different systems specifically as follows: acquiring the load states of other systems, and determining new cell reselection and/or switching priority according to the load states of the system and other systems;
the operation management module determines a new cell reselection and/or handover priority according to the load states of the system and other systems specifically as follows: the reselection and/or handover priority of the system in the heavy load state is lowered, and the reselection and/or handover priority of the system in the normal load state is raised.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100768922A CN101801030B (en) | 2009-02-05 | 2009-02-05 | Method, device and system for realizing load balancing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100768922A CN101801030B (en) | 2009-02-05 | 2009-02-05 | Method, device and system for realizing load balancing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101801030A CN101801030A (en) | 2010-08-11 |
| CN101801030B true CN101801030B (en) | 2012-11-14 |
Family
ID=42596460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100768922A Active CN101801030B (en) | 2009-02-05 | 2009-02-05 | Method, device and system for realizing load balancing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101801030B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102572948A (en) * | 2010-12-23 | 2012-07-11 | 中兴通讯股份有限公司 | Method and device for optimizing load balancing |
| CN102932813B (en) * | 2011-08-10 | 2015-03-11 | 中国移动通信集团河南有限公司 | Method and device for adjusting cell individual offset (CIO) parameters |
| CN102547857A (en) * | 2011-12-19 | 2012-07-04 | 中兴通讯股份有限公司 | Load equilibrium processing method and control device |
| CN103298031B (en) * | 2012-02-29 | 2016-12-28 | 中兴通讯股份有限公司 | The load equalization method of wireless access interlayer and device |
| CN103458462B (en) * | 2012-06-04 | 2019-02-05 | 电信科学技术研究院 | A kind of cell selecting method and equipment |
| CN105282791A (en) * | 2014-07-25 | 2016-01-27 | 中兴通讯股份有限公司 | Load balancing method and device |
| CN105792245A (en) * | 2014-12-22 | 2016-07-20 | 中兴通讯股份有限公司 | Neighbor cell switching adjusting method and device |
| WO2017107100A1 (en) * | 2015-12-23 | 2017-06-29 | 华为技术有限公司 | Information transmission method, device and system |
| CN107548108A (en) * | 2016-06-28 | 2018-01-05 | 中兴通讯股份有限公司 | A kind of frequency based on redirection determines method and device |
| CN107426778B (en) * | 2017-07-27 | 2020-03-10 | 深圳市盛路物联通讯技术有限公司 | Selection method for frequency point switching and access equipment |
| WO2019136659A1 (en) * | 2018-01-11 | 2019-07-18 | Oppo广东移动通信有限公司 | Cell reselection method, apparatus and system |
| CN110831052B (en) * | 2018-08-07 | 2021-11-12 | 大唐移动通信设备有限公司 | Load balancing method and device based on periodic measurement report |
| CN112020098B (en) * | 2019-05-30 | 2023-04-28 | 中国移动通信集团重庆有限公司 | Load balancing method, device, computing equipment and computer storage medium |
| CN111726832B (en) * | 2020-06-28 | 2021-08-20 | 宁波方太厨具有限公司 | Method and system for load balance control in wireless ad hoc network system |
| CN111970732A (en) * | 2020-09-10 | 2020-11-20 | 杭州六极加科技有限公司 | Method and system for balancing load between subframes in time division duplex system |
| CN118804104B (en) * | 2024-03-19 | 2025-10-31 | 中国移动通信集团福建有限公司 | Different-frequency-band load balancing method and device, electronic equipment and storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006015517A1 (en) * | 2004-08-13 | 2006-02-16 | Utstarcom Telecom Co., Ltd. | Method for allocating resource dynamically in a centralized base station |
| EP1677564A1 (en) * | 2004-12-29 | 2006-07-05 | Lucent Technologies Inc. | Load balancing on shared wireless channels |
| CN101076181A (en) * | 2006-05-19 | 2007-11-21 | 中兴通讯股份有限公司 | Method for selecting access frequency point N frequency-point domain in TD-SCDMA system |
| CN101137223A (en) * | 2007-09-21 | 2008-03-05 | 华为技术有限公司 | Method and system for adjusting frequency band load in base station and multi-band network |
-
2009
- 2009-02-05 CN CN2009100768922A patent/CN101801030B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006015517A1 (en) * | 2004-08-13 | 2006-02-16 | Utstarcom Telecom Co., Ltd. | Method for allocating resource dynamically in a centralized base station |
| EP1677564A1 (en) * | 2004-12-29 | 2006-07-05 | Lucent Technologies Inc. | Load balancing on shared wireless channels |
| CN101076181A (en) * | 2006-05-19 | 2007-11-21 | 中兴通讯股份有限公司 | Method for selecting access frequency point N frequency-point domain in TD-SCDMA system |
| CN101137223A (en) * | 2007-09-21 | 2008-03-05 | 华为技术有限公司 | Method and system for adjusting frequency band load in base station and multi-band network |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101801030A (en) | 2010-08-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101801030B (en) | Method, device and system for realizing load balancing | |
| US8848729B2 (en) | Allocation method for physical downlink control channel, base station and user terminal | |
| EP2424302B1 (en) | Evolved node b and method for obtaining uplink signal quality of an adjacent cell and for optimizing handover | |
| KR101740929B1 (en) | Mobile communication systems for controlling load in distributed manner and method threrof | |
| CN101854665B (en) | Method, device and system for controlling load of LTE system | |
| US20130072212A1 (en) | Radio communication system, radio base station, and communication control method | |
| US8885566B2 (en) | Mobile communication system, controller and method | |
| WO2008121040A1 (en) | Reducing access latency while protecting against control signaling data processing overload | |
| US20130072259A1 (en) | Radio base station, radio communication system, and control method | |
| KR20130012479A (en) | Method and apparatus for load balancing in celluar communication systems | |
| CN102857970B (en) | The implementation method and device of a kind of inter-cell load balance | |
| WO2020021504A1 (en) | System and method for load balancing in a cellular network | |
| WO2010088859A1 (en) | Method, device and system for implementing load balancing in hierarchical cell | |
| US9144080B2 (en) | Selecting transmission parameters for downlink transmissions based on retransmission rates | |
| US9144021B2 (en) | Mobile communication system, controller and method | |
| CN106535259A (en) | Cell load balancing method and cell load balancing device | |
| US8897259B2 (en) | Method and apparatus for changing serving base station in mobile communication system | |
| US20140328239A1 (en) | Radio base station apparatus and transition control method | |
| US12513729B2 (en) | Uplink performance for bearers | |
| CN102572948A (en) | Method and device for optimizing load balancing | |
| CN101854636B (en) | Confirming method, system and equipment of OI (Overload Indication) threshold value | |
| CN112770339A (en) | Cooperative cell determination method and device | |
| EP2592864A1 (en) | Service link establishment | |
| US10454633B2 (en) | Method and apparatus for determining subframe configuration of cell cluster | |
| US9191901B2 (en) | Radio base station and power control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: INST OF TELECOMMUNICATION SCIENCE AND TECHNOLGOY Free format text: FORMER OWNER: DATANG MOBILE COMMUNICATION EQUIPMENT CO., LTD. Effective date: 20110505 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 100083 NO. 29, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING TO: 100083 NO. 40, XUEYUAN ROAD, HAIDIAN DISTRICT, BEIJING |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20110505 Address after: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Applicant after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 Haidian District, Xueyuan Road, No. 29, Applicant before: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210607 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100083 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |