CA2192934C - Transceiver handlers load sharing - Google Patents
Transceiver handlers load sharing Download PDFInfo
- Publication number
- CA2192934C CA2192934C CA002192934A CA2192934A CA2192934C CA 2192934 C CA2192934 C CA 2192934C CA 002192934 A CA002192934 A CA 002192934A CA 2192934 A CA2192934 A CA 2192934A CA 2192934 C CA2192934 C CA 2192934C
- Authority
- CA
- Canada
- Prior art keywords
- load
- regional processor
- processor device
- regional
- load information
- 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.)
- Expired - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
Abstract
A method for significantly more effective use of regional processor devices connected to a central processor (e.g., a node in GSM/CME201) in a cellular radio communications system by introducing load sharing between regional processor devices, thereby redressing the problems of too high a regional processor device load and too low a regional processor device load.
Description
~
W0 95!35639 PC'TISE9510066.t ~gANSCElYl~ HANDLERS LOAD SHARING
~AC'KCIROUND OF THE ZVV~
1) Field of the Invention.
The present invention relates to a method of and apparatus for increasing the efficiency of transceivers used in a cellular radio communications system by introducing load sharing between regional processor devices.
W0 95!35639 PC'TISE9510066.t ~gANSCElYl~ HANDLERS LOAD SHARING
~AC'KCIROUND OF THE ZVV~
1) Field of the Invention.
The present invention relates to a method of and apparatus for increasing the efficiency of transceivers used in a cellular radio communications system by introducing load sharing between regional processor devices.
2) Discussion of Related Art.
Typical teiephane exchanges (such as AXE) are usually built around a powerful central processor (CP), supported by a number of simple regional IO processors (RP's). Conventionally, the central processor performs the complex tasks, while the regional processors are dedicated to simple routine tasks (such as scanning).
Recent applications have changed the tasks of the regional processors to some degree. For example, the special needs in mobile communication have forced the regional processors to perform complex tasks (e.g., advanced locating calculations). This has created a demand for more powerful regional processors.
The latest generation of regional processors are quite powerful and are built with state-of the-art microprocessor technology. Nevertheless, various applications are suffering from both 'too high' as well an 'too low' regional processor load.
~11MMA1tY OF THE INVENTION
A method for significantly more effective use of regional processor devices connected to a central processor in a cellular radio communications system by introducing load sharing hetwern regional processor devices, thereby redressing the problems of too high a regional processor device load and too low a regional processor device load.
Under the inventive method, Ioad sharing between at least two regional processor devices in a radio communications system is achieved by the following steps. Each regional processor device reports load information, such as peak andJor average loads, at specified time intervals. A load monitor receives these load information reports from the regional processor devices and determines whether any regional processor devices have a high load at or higher than an upper limit or a low load at or less than a lower limit. If the load monitor determines that at least one regional processor device has a high load and at least one regional processor device has a low load, then the load monitor changes over at least one connection from the regional processor device with a high load to the regional processor device with a low load.
According to one aspect of the present invention, there is provided in a radio communication base station system including regional processor devices, each for a number of radio unit connections, at least one regional processor serving a first area having high traffic demands and at least another regional processor serving a second area having low traffic demands, a method for load sharing between at least two regional processor devices, comprising the steps of reporting from each regional processor device load information at specific time intervals, determining, in a load monitor receiving the load information reports from each of the regional processor devices, whether any regional processor device has a high load not less than an upper limit or a low load not greater than a lower limit, and if at least one regional processor device serving the second area is determined by the load monitor to have a low load, changing over at least one connection from the regional processor device serving the first area to the regional processor device serving the second area.
According to a further aspect of the present invention, there is provided a radio communication base station system including regional processor devices serving a~ second area having low traffic demands, including means for reporting from each regional processor device load information at specific time intervals, load monitoring means receiving the load information reporting from each of the regional processor devices for determining whether any regional processor device has a high load not less than an upper limit or a low load not greater than a lower limit, and switching means for changing over at least one connection from the regional processor device serving the first area to a connection from the regional processor device serving the second area if at least one 2a regional processor device serving the second area is determined by the load monitor to have a low load.
The present invention achieves various advantages over the prior art such as more or less eliminating the risk for regional processor device overload for the vast majority of base station controller nodes.
Also, a significant saving in terms of equipment expense and space cost is achievable under the present invention, which should be most apparent in rural applications.
The present invention also permits a simplified introduction of current and future (and more powerful) regional processor devices into sites with older regional processor devices (which might be limited in function to the scanning).
The present invention also permits the dynamic use of regional processor devices in time, capable of handling odd situations arising in the network.
In prior art systems, the number of transceivers to regional processor devices is hard-wired to fit the average conditions for a 'nearly-worst-case' regional processor device situation. Regional processor devices incur such situations only occasionally, meaning equipment and space are not utilized to their best potential.
With the inventive method described herein, the number of transceivers per regional processor device vanes dynamically by time. The actual number is based on the current traffic and operation and maintenance situations.
w0 9513639 PGTISE95/00669 _3_ RRTFF DESCRII''fION OF THE DRAWINGS
The invention will now be described in detail with reference to the accompanying drawings in which:
Figure 1 is a functional block diagram of a cellular radio communications system in which the present invenrion is usable;
Figure 2 is a functional block diagram of a cellular radio communications system in which the communication loads of the various regional transceivers is shown; and Figure 3 is a flow chart of the procrss steps in accordance with the present invention.
DETAILED DESCRiP'I'fON OF THE PREFERRED EMBODIMENTS
The following exemplary embodiments will be described by way of illustration and not limitation. wth reference to Figure 1, a number of regional processor devices 14 (RPDI, RPD2...RPDn) are connected to the central IS processor 15 through a group switch 16. The regional processing devices 14 are connected to a number of transceivers (T'RX's) 17 located at the base station sites. The connections 'between the regional processing devices 14 and the transceivers 17 can be PCM lines, in accordance with standard GSM hardware.
For completeness, some GSM architecture surrounding the components involved with the present invention is illustrated in Figure 1. To provide a context for the invenfive method, it will be described with reference to the GSM
system model CME 20 (a Pan-European digital mobile telephone system). CME
20, which is based on AXE technology, is F.ricsson's implementation of GSM.
A cellular radio communication system such as GSM may be basically divided into two sections; a Switching System (SS) IO and, of interest to the present invention, a Base Station System (BSS) 12. The base station system 12 provides an air interface with a plurality of mobile stations (MS's) 19. The mobile stations 18 are the terminal equipment used by the subscriber.
w0 9ti35639 PCT1SE95/00664 The switching system IO and the base station system 12 are subdivided into functional entities. The switching system 10 includes a Mobile Services Switching Center (MSC) 11, which is the interface between GSM and the Public Switched Telephone Network ~PSTN)(not shown).
The base station system 12 includes the regional processor devices 14 which provide the processing support for Lhe base station controller 13 and a Base Transceiver Station (BTS) I8, which is the radio equipment needed to serve one cell. The base station transceiver I8 contains the aerial system, the radio frequency power ampl~ers and aII the digital signal processing equipment needed, including the transceivers i7.
The base station system 12 also includes a Base Station Controller (BSC) 13, which is the functional unit that controls and supervises the base station transceivers i7 and the radio connections in the system. In the CME 20 System, the base station controller I3 is implemented in a AXE 10 switch. The mobile switching center 11 is responsible for set-up and routing of calls to and from mobile subscribers. A llot of other functions are implemented in the mobile switching center lI, e.g., authentication and ciphering.
Fach regional processing device 14 handles signalling and call supervision (e.g., locating) over a 64 Kbit/s PCM time-slot for up to four (4), or in some cases three (3), transceivers I7 under standard GSM system structure. The number of transceivers per regional processor device can vary between one and eight in current and envisioned implementations of GSM (while currently only three or four are used). The maximum of four is not a hard limit.
In base station controller applications, the regional processor devices 14 are often referred to Transceiver Handlers (TRH's), thus the title of the present invention.
The configuration rule above (i.e., three to four transceivers per regional processor device) is conventionally applied to all installed regional processor devices, with no regard to traffic (e.g., setting up, clearing and, to some degree the numbers of simultaneous calls (Erlang)) considerations. By applying such considerations, some interesting factors become clear.
For a few regional processor devices, the risk for an overload is evident (resulting in a risk for faulty call supervision, lost calls, etc). This goes for regional processor devices in metropolitan areas in particular, where all the transceivers belong to heavy~uty channels which are likely to have traffic peaks coinciding in time. In such a case, occasionally one or two transceivers 17 might be enough per transceiver handler 14.
On the other hand, for a large number of regional processing devices IO (most likely the majority), the risk of too low a load is evident (resulting in a waste equipment expense and space). This is especially true in rural areas, where transceiver quantities are Large due to the large areas covered rather than traffic handling reasons. In such cases, a maximum number of twenty transceivers per regional processor, for instance, might be appropriate.
~ For typical base station controller applications, a mixture of the cases above is expected. That is, while same regional processor devices 14 are overloaded at a certain time, the majority of the regional processor devices 14 are poorly utilized. A better division of transceivers per regional processor device seems advisable. However, as the traffic varies in time, the conncclions between transceivers and regional processor devices can not be hard-wired for optimization.
To solve these problems, a method and apparatus for load sharing between regional processor devices is described next.
Initially, a number of transceivers are connected to each regional 2S processing device. With reference to the load situation shown in Figure 2, assume the load of a first regional processing device RPD1 is rising, thereby indicating potential load problems. To address the load problems, a load monitor is included in the central processor 15. The Load monitor 25 is best suited for software implementation.. This gives the best opportunities regarding operation and SIahStICS, while having low processing demands.
R'0 95135639 ~ _ PCTISE95/00664 The load sharing mechanism will now be described with references to the process steps of Figure 3 (wherein the specific values are offered only by way of example):
(a) Each regional processor device reports the average (andlor peak) load for an elapsed time, e.g., at i minute intervals (Step 31). For example, a signal REP INT might be sent to a load monitor in the central processor.
(b) The load monitor updates a load list (Step 32), determines which transceiver has the highest load (step 33), and checks whether any regional processor device has reported a toad above 80~ (iJPPER
LIM), for example (step 34). If no regional processor has a load at or above the upper limit, the method returns to wait for more Load reports (step 31).
(c) If a regional processor device is found to have a load at or above an upper limit, the load monitor finds the regional processor device with the lowest load (step 35), and checks whether there are any regional processor devices with a load below 3096 (LOWER LII~, for example (step 36). If no regional processor device is found to have a Load at or below the cower limit, then the method returns to await the next set of load reports (step 31).
(d) If a regional processor device with a low load is found (step 3~, a changeover of one transceiver connection from the regional processor device with the highest load to the regional processor device with the lowest Ioad is prepared ('f1 from RPDl to RPD2, for exampie)(step 3~.
To make such a transfer as smooth as possible, the following measures are taken: (i) transfer of recent generations of reported measurement data (for transceiver connection TRX Tl) from a first regional processor device RPD1 to a second regional processor device RPD2, and w0 95!35639 2 l 9 2 9 3 4 PCT~95J006bd _7_ (2) loading of relevant cell data (for TRX TI) from the central procrssor to the second regional processor device RPD2. T'he measurement data is reported every 0.48 seconds, for example, and may include data on signal strength of a received signal, signal quality (e.g., bit error rate) of received signal, transmitting power used, signal strength of up to six neighboring cells, information regarding whether discontinuous transmissionlreception is in use, etc.
(e) When the second regional processor device 12PD2 is prepared to take over the connection T1 from the first regional processor device RPDI, a change-over is executed (through the group switch)(step 38).
(fj Steps (a) to (d) above (steps 33-38 in 1 figure 3) are repeated to transfer a transceiver from ~ regional processor device with the second highest load to a regional processor device with the second lowest load, etc.
The change-over of transceiver connections from one regional processor device 14 to another can be compared to when a redundant regional processor device is connected at a regional processor device failure (which is a capability of current base station controllers). In this case, the disturbance an ttaffic is estimated to be quite low. However, for the case described herein, the traffic disturbance will be even less (perhaps virtually zero). The reason is that the target regional processor device will be prepared by data transfers prior to the changeover.
The present invention has been described by way of example with respect to a GSM system. It should be noted that the inventive concept may be w0 95!35639 PC?'15E95/00664 -&
implemented and/or adapted to other systems. Also, variations from the hardware and software disclosed herein are to be expected without departing from the scope and content of the invention, as measured by the claims appended hereto.
Typical teiephane exchanges (such as AXE) are usually built around a powerful central processor (CP), supported by a number of simple regional IO processors (RP's). Conventionally, the central processor performs the complex tasks, while the regional processors are dedicated to simple routine tasks (such as scanning).
Recent applications have changed the tasks of the regional processors to some degree. For example, the special needs in mobile communication have forced the regional processors to perform complex tasks (e.g., advanced locating calculations). This has created a demand for more powerful regional processors.
The latest generation of regional processors are quite powerful and are built with state-of the-art microprocessor technology. Nevertheless, various applications are suffering from both 'too high' as well an 'too low' regional processor load.
~11MMA1tY OF THE INVENTION
A method for significantly more effective use of regional processor devices connected to a central processor in a cellular radio communications system by introducing load sharing hetwern regional processor devices, thereby redressing the problems of too high a regional processor device load and too low a regional processor device load.
Under the inventive method, Ioad sharing between at least two regional processor devices in a radio communications system is achieved by the following steps. Each regional processor device reports load information, such as peak andJor average loads, at specified time intervals. A load monitor receives these load information reports from the regional processor devices and determines whether any regional processor devices have a high load at or higher than an upper limit or a low load at or less than a lower limit. If the load monitor determines that at least one regional processor device has a high load and at least one regional processor device has a low load, then the load monitor changes over at least one connection from the regional processor device with a high load to the regional processor device with a low load.
According to one aspect of the present invention, there is provided in a radio communication base station system including regional processor devices, each for a number of radio unit connections, at least one regional processor serving a first area having high traffic demands and at least another regional processor serving a second area having low traffic demands, a method for load sharing between at least two regional processor devices, comprising the steps of reporting from each regional processor device load information at specific time intervals, determining, in a load monitor receiving the load information reports from each of the regional processor devices, whether any regional processor device has a high load not less than an upper limit or a low load not greater than a lower limit, and if at least one regional processor device serving the second area is determined by the load monitor to have a low load, changing over at least one connection from the regional processor device serving the first area to the regional processor device serving the second area.
According to a further aspect of the present invention, there is provided a radio communication base station system including regional processor devices serving a~ second area having low traffic demands, including means for reporting from each regional processor device load information at specific time intervals, load monitoring means receiving the load information reporting from each of the regional processor devices for determining whether any regional processor device has a high load not less than an upper limit or a low load not greater than a lower limit, and switching means for changing over at least one connection from the regional processor device serving the first area to a connection from the regional processor device serving the second area if at least one 2a regional processor device serving the second area is determined by the load monitor to have a low load.
The present invention achieves various advantages over the prior art such as more or less eliminating the risk for regional processor device overload for the vast majority of base station controller nodes.
Also, a significant saving in terms of equipment expense and space cost is achievable under the present invention, which should be most apparent in rural applications.
The present invention also permits a simplified introduction of current and future (and more powerful) regional processor devices into sites with older regional processor devices (which might be limited in function to the scanning).
The present invention also permits the dynamic use of regional processor devices in time, capable of handling odd situations arising in the network.
In prior art systems, the number of transceivers to regional processor devices is hard-wired to fit the average conditions for a 'nearly-worst-case' regional processor device situation. Regional processor devices incur such situations only occasionally, meaning equipment and space are not utilized to their best potential.
With the inventive method described herein, the number of transceivers per regional processor device vanes dynamically by time. The actual number is based on the current traffic and operation and maintenance situations.
w0 9513639 PGTISE95/00669 _3_ RRTFF DESCRII''fION OF THE DRAWINGS
The invention will now be described in detail with reference to the accompanying drawings in which:
Figure 1 is a functional block diagram of a cellular radio communications system in which the present invenrion is usable;
Figure 2 is a functional block diagram of a cellular radio communications system in which the communication loads of the various regional transceivers is shown; and Figure 3 is a flow chart of the procrss steps in accordance with the present invention.
DETAILED DESCRiP'I'fON OF THE PREFERRED EMBODIMENTS
The following exemplary embodiments will be described by way of illustration and not limitation. wth reference to Figure 1, a number of regional processor devices 14 (RPDI, RPD2...RPDn) are connected to the central IS processor 15 through a group switch 16. The regional processing devices 14 are connected to a number of transceivers (T'RX's) 17 located at the base station sites. The connections 'between the regional processing devices 14 and the transceivers 17 can be PCM lines, in accordance with standard GSM hardware.
For completeness, some GSM architecture surrounding the components involved with the present invention is illustrated in Figure 1. To provide a context for the invenfive method, it will be described with reference to the GSM
system model CME 20 (a Pan-European digital mobile telephone system). CME
20, which is based on AXE technology, is F.ricsson's implementation of GSM.
A cellular radio communication system such as GSM may be basically divided into two sections; a Switching System (SS) IO and, of interest to the present invention, a Base Station System (BSS) 12. The base station system 12 provides an air interface with a plurality of mobile stations (MS's) 19. The mobile stations 18 are the terminal equipment used by the subscriber.
w0 9ti35639 PCT1SE95/00664 The switching system IO and the base station system 12 are subdivided into functional entities. The switching system 10 includes a Mobile Services Switching Center (MSC) 11, which is the interface between GSM and the Public Switched Telephone Network ~PSTN)(not shown).
The base station system 12 includes the regional processor devices 14 which provide the processing support for Lhe base station controller 13 and a Base Transceiver Station (BTS) I8, which is the radio equipment needed to serve one cell. The base station transceiver I8 contains the aerial system, the radio frequency power ampl~ers and aII the digital signal processing equipment needed, including the transceivers i7.
The base station system 12 also includes a Base Station Controller (BSC) 13, which is the functional unit that controls and supervises the base station transceivers i7 and the radio connections in the system. In the CME 20 System, the base station controller I3 is implemented in a AXE 10 switch. The mobile switching center 11 is responsible for set-up and routing of calls to and from mobile subscribers. A llot of other functions are implemented in the mobile switching center lI, e.g., authentication and ciphering.
Fach regional processing device 14 handles signalling and call supervision (e.g., locating) over a 64 Kbit/s PCM time-slot for up to four (4), or in some cases three (3), transceivers I7 under standard GSM system structure. The number of transceivers per regional processor device can vary between one and eight in current and envisioned implementations of GSM (while currently only three or four are used). The maximum of four is not a hard limit.
In base station controller applications, the regional processor devices 14 are often referred to Transceiver Handlers (TRH's), thus the title of the present invention.
The configuration rule above (i.e., three to four transceivers per regional processor device) is conventionally applied to all installed regional processor devices, with no regard to traffic (e.g., setting up, clearing and, to some degree the numbers of simultaneous calls (Erlang)) considerations. By applying such considerations, some interesting factors become clear.
For a few regional processor devices, the risk for an overload is evident (resulting in a risk for faulty call supervision, lost calls, etc). This goes for regional processor devices in metropolitan areas in particular, where all the transceivers belong to heavy~uty channels which are likely to have traffic peaks coinciding in time. In such a case, occasionally one or two transceivers 17 might be enough per transceiver handler 14.
On the other hand, for a large number of regional processing devices IO (most likely the majority), the risk of too low a load is evident (resulting in a waste equipment expense and space). This is especially true in rural areas, where transceiver quantities are Large due to the large areas covered rather than traffic handling reasons. In such cases, a maximum number of twenty transceivers per regional processor, for instance, might be appropriate.
~ For typical base station controller applications, a mixture of the cases above is expected. That is, while same regional processor devices 14 are overloaded at a certain time, the majority of the regional processor devices 14 are poorly utilized. A better division of transceivers per regional processor device seems advisable. However, as the traffic varies in time, the conncclions between transceivers and regional processor devices can not be hard-wired for optimization.
To solve these problems, a method and apparatus for load sharing between regional processor devices is described next.
Initially, a number of transceivers are connected to each regional 2S processing device. With reference to the load situation shown in Figure 2, assume the load of a first regional processing device RPD1 is rising, thereby indicating potential load problems. To address the load problems, a load monitor is included in the central processor 15. The Load monitor 25 is best suited for software implementation.. This gives the best opportunities regarding operation and SIahStICS, while having low processing demands.
R'0 95135639 ~ _ PCTISE95/00664 The load sharing mechanism will now be described with references to the process steps of Figure 3 (wherein the specific values are offered only by way of example):
(a) Each regional processor device reports the average (andlor peak) load for an elapsed time, e.g., at i minute intervals (Step 31). For example, a signal REP INT might be sent to a load monitor in the central processor.
(b) The load monitor updates a load list (Step 32), determines which transceiver has the highest load (step 33), and checks whether any regional processor device has reported a toad above 80~ (iJPPER
LIM), for example (step 34). If no regional processor has a load at or above the upper limit, the method returns to wait for more Load reports (step 31).
(c) If a regional processor device is found to have a load at or above an upper limit, the load monitor finds the regional processor device with the lowest load (step 35), and checks whether there are any regional processor devices with a load below 3096 (LOWER LII~, for example (step 36). If no regional processor device is found to have a Load at or below the cower limit, then the method returns to await the next set of load reports (step 31).
(d) If a regional processor device with a low load is found (step 3~, a changeover of one transceiver connection from the regional processor device with the highest load to the regional processor device with the lowest Ioad is prepared ('f1 from RPDl to RPD2, for exampie)(step 3~.
To make such a transfer as smooth as possible, the following measures are taken: (i) transfer of recent generations of reported measurement data (for transceiver connection TRX Tl) from a first regional processor device RPD1 to a second regional processor device RPD2, and w0 95!35639 2 l 9 2 9 3 4 PCT~95J006bd _7_ (2) loading of relevant cell data (for TRX TI) from the central procrssor to the second regional processor device RPD2. T'he measurement data is reported every 0.48 seconds, for example, and may include data on signal strength of a received signal, signal quality (e.g., bit error rate) of received signal, transmitting power used, signal strength of up to six neighboring cells, information regarding whether discontinuous transmissionlreception is in use, etc.
(e) When the second regional processor device 12PD2 is prepared to take over the connection T1 from the first regional processor device RPDI, a change-over is executed (through the group switch)(step 38).
(fj Steps (a) to (d) above (steps 33-38 in 1 figure 3) are repeated to transfer a transceiver from ~ regional processor device with the second highest load to a regional processor device with the second lowest load, etc.
The change-over of transceiver connections from one regional processor device 14 to another can be compared to when a redundant regional processor device is connected at a regional processor device failure (which is a capability of current base station controllers). In this case, the disturbance an ttaffic is estimated to be quite low. However, for the case described herein, the traffic disturbance will be even less (perhaps virtually zero). The reason is that the target regional processor device will be prepared by data transfers prior to the changeover.
The present invention has been described by way of example with respect to a GSM system. It should be noted that the inventive concept may be w0 95!35639 PC?'15E95/00664 -&
implemented and/or adapted to other systems. Also, variations from the hardware and software disclosed herein are to be expected without departing from the scope and content of the invention, as measured by the claims appended hereto.
Claims (11)
1. In a radio communication base station system including regional processor devices, each for a number of radio unit connections, at least one regional processor serving a first area having high traffic demands and at least another regional processor serving a second area having low traffic demands, a method for load sharing between at least two regional processor devices, comprising the steps of:
reporting from each regional processor device load information at specific time intervals;
determining, in a load monitor receiving said load information reports from each of said regional processor devices, whether any regional processor device has a high load not less than an upper limit or a low load not greater than a lower limit; and, if at least one regional processor device serving said second area is determined by said load monitor to have a low load, changing over at least one connection from the regional processor device serving said first area to the regional processor device serving said second area.
reporting from each regional processor device load information at specific time intervals;
determining, in a load monitor receiving said load information reports from each of said regional processor devices, whether any regional processor device has a high load not less than an upper limit or a low load not greater than a lower limit; and, if at least one regional processor device serving said second area is determined by said load monitor to have a low load, changing over at least one connection from the regional processor device serving said first area to the regional processor device serving said second area.
2. A method in accordance with claim 1, wherein said load information includes average load information, peak load information, or both average load information and peak load information.
3. A method in accordance with claim 1 or 2, wherein each regional processor device includes a plurality of transceiver units.
4. A method in accordance with claim 3, wherein said load information includes load information specific to each of said transceiver units.
5. A method in accordance with any one of claims 1 to 4, wherein said change-over step includes:
transferring recent reported measurement data for a transceiver connection from the regional processor device with a high load to the regional processor device with a low load; and loading of relevant cell data of a transceiver connection to the regional processor device with a low load, to make such a transfer smooth.
transferring recent reported measurement data for a transceiver connection from the regional processor device with a high load to the regional processor device with a low load; and loading of relevant cell data of a transceiver connection to the regional processor device with a low load, to make such a transfer smooth.
6. A method in accordance with any one of claims 1 to 5, wherein said method is carried out in GSM cellular radio communication switch unit.
7. A radio communication base station system including regional processor devices, each for a number of radio unit connections, at least one regional processor device serving a second area having low traffic demands, including means for reporting from each regional processor device load infor-mation at specific time intervals, load monitoring means receiving said load infor-mation reporting from each of said regional processor devices for determining whether any regional processor device has a high load not less than an upper limit or a low load not greater than a lower limit; and switching means for changing over at least one connection from the regional processor device serving said first area to a connection from the regional processor device serving said second area if at least one regional processor device serving said second area is determined by said load monitor to have a low load.
8. A radio communication base station system in accor-dance with claim 7, wherein said load information includes average load information, peak load information, or both average load information and peak load information.
9. A radio communication base station system in accordance with claim 7 or 8, wherein each regional processor device includes a plurality of transceiver units.
10. A radio communication base station system in accor-dance with claim 9, wherein said load- information includes load information specific to each of said transceiver units.
11. A radio communication base station system in accordance with any one of claims 7 to 10, wherein said switching means includes:
means for transferring recent reported measurement data for a transceiver connection from the regional processor device with a high load to the regional processor device with a low load; and means for loading of relevant cell data of a transceiver connection to the regional processor device with a low load, to make such a transfer smooth.
means for transferring recent reported measurement data for a transceiver connection from the regional processor device with a high load to the regional processor device with a low load; and means for loading of relevant cell data of a transceiver connection to the regional processor device with a low load, to make such a transfer smooth.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US26090594A | 1994-06-15 | 1994-06-15 | |
| US08/260,905 | 1994-06-15 | ||
| PCT/SE1995/000664 WO1995035639A2 (en) | 1994-06-15 | 1995-06-07 | Transceiver handlers load sharing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2192934A1 CA2192934A1 (en) | 1995-12-28 |
| CA2192934C true CA2192934C (en) | 2004-11-09 |
Family
ID=22991144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002192934A Expired - Fee Related CA2192934C (en) | 1994-06-15 | 1995-06-07 | Transceiver handlers load sharing |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US5697054A (en) |
| EP (1) | EP0765584B1 (en) |
| JP (1) | JPH10501940A (en) |
| CN (1) | CN1074639C (en) |
| AU (1) | AU2757395A (en) |
| CA (1) | CA2192934C (en) |
| DE (1) | DE69528765T2 (en) |
| FI (1) | FI114890B (en) |
| WO (1) | WO1995035639A2 (en) |
Families Citing this family (35)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR970055857A (en) * | 1995-12-30 | 1997-07-31 | 김광호 | Loading Method of Base Station System in Digital Cellular System |
| US5873038A (en) * | 1996-02-15 | 1999-02-16 | Telefonaktiebolaget Lm Ericsson (Publ) | System and method for distributing channel port loading functionality |
| US5796722A (en) * | 1996-05-17 | 1998-08-18 | Motorola, Inc. | Method and apparatus for dynamic load balancing using handoff |
| US6138016A (en) * | 1996-12-04 | 2000-10-24 | Nortel Networks Corporation | Distributing location tracking functionality in wireless telephone systems |
| FI108764B (en) * | 1997-05-28 | 2002-03-15 | Nokia Corp | Control of transceiver units in a cellular radio system |
| US6246878B1 (en) * | 1997-11-26 | 2001-06-12 | Telefonaktiebolaget Lm Ericsson | Magnetoresistive device having a highly smooth metal reflective layer |
| US6385449B2 (en) | 1998-03-06 | 2002-05-07 | Telefonaktiebolaget L M Ericsson | System and method used in a mobile telecommunications network for load balancing ongoing calls between different base station controllers |
| SE513244C2 (en) * | 1998-03-13 | 2000-08-07 | Ericsson Telefon Ab L M | A device, system and method related to packet data communication |
| US6456849B1 (en) * | 1998-07-31 | 2002-09-24 | Nokia Corporation | Apparatus and associated method, for allocating resources in a radio communication system to perform a communication service |
| SE517734C2 (en) * | 1998-10-16 | 2002-07-09 | Ericsson Telefon Ab L M | Method and apparatus for increasing the cell capacity of data packet transmission in a GSM system |
| US6324403B1 (en) * | 1998-11-05 | 2001-11-27 | Lucent Technologies, Inc. | Dynamic reduction of telephone call congestion |
| US6577871B1 (en) * | 1999-05-20 | 2003-06-10 | Lucent Technologies Inc. | Technique for effectively managing processing loads in a communications arrangement |
| US6574477B1 (en) * | 1999-10-06 | 2003-06-03 | Lucent Technologies Inc. | Dynamic load balancing during message processing in a wireless communication service network |
| EP1096817A1 (en) * | 1999-10-27 | 2001-05-02 | TELEFONAKTIEBOLAGET L M ERICSSON (publ) | Method and devices for the operation of a radio base station in a cellular system |
| GB2359387B (en) * | 2000-02-15 | 2004-04-14 | Motorola Inc | Operating a user station in a cellular communications system |
| SE0001173L (en) * | 2000-03-31 | 2001-10-01 | Ericsson Telefon Ab L M | Distribution of traffic load between base radio stations |
| US7385965B2 (en) * | 2000-08-10 | 2008-06-10 | Alcatel-Lucent Canada Inc. | Multiprocessor control block for use in a communication switch and method therefore |
| US6650643B1 (en) * | 2000-09-08 | 2003-11-18 | Fujitsu Network Communications, Inc. | Method and system for handling asynchronous transfer mode (ATM) call set-ups |
| US6738624B1 (en) | 2000-11-16 | 2004-05-18 | Nokia Corporation | Method and system for capacity reporting in a mobile telecommunications network |
| DE10115610A1 (en) * | 2001-03-29 | 2002-10-02 | Alcatel Sa | Method and base station for baseband processing of received signals |
| WO2003026321A2 (en) * | 2001-08-31 | 2003-03-27 | Siemens Aktiengesellschaft | Communications network |
| AU2002238478A1 (en) * | 2001-12-21 | 2003-07-09 | Nokia Corporation | A method of gathering location data of terminals in a communication network |
| JP3789354B2 (en) * | 2001-12-26 | 2006-06-21 | 日本電気通信システム株式会社 | Base station controller load balancing method |
| US8463282B2 (en) * | 2003-12-03 | 2013-06-11 | Qualcomm Incorporated | Overload detection in a wireless communication system |
| CN100426771C (en) * | 2005-08-11 | 2008-10-15 | 中兴通讯股份有限公司 | Load balancing method of radio local network |
| CN100433680C (en) * | 2005-08-12 | 2008-11-12 | 中兴通讯股份有限公司 | Load balancing method of radio local network |
| US8559514B2 (en) * | 2006-07-27 | 2013-10-15 | Qualcomm Incorporated | Efficient fetching for motion compensation video decoding process |
| TW200845607A (en) * | 2007-01-09 | 2008-11-16 | Sr Telecom Inc | Redundant wireless base station |
| JP5081636B2 (en) * | 2008-01-10 | 2012-11-28 | 株式会社エヌ・ティ・ティ・ドコモ | Wireless base station, wireless communication control system, and wireless communication control method |
| JP5267319B2 (en) * | 2009-05-18 | 2013-08-21 | 富士通株式会社 | Mobile base station, mobile communication system, and mobile communication method |
| US8139477B2 (en) * | 2009-07-24 | 2012-03-20 | International Business Machines Corporation | Network element bypass in computing computer architecture |
| EP2818002A4 (en) * | 2012-02-24 | 2015-10-28 | Intel Corp | Cooperative radio access network with centralized base station baseband unit (bbu) processing pool |
| CN104105119B (en) * | 2013-04-01 | 2017-10-20 | 中国移动通信集团广东有限公司 | A kind of method and system of PCU traffic monitorings |
| WO2016198112A1 (en) * | 2015-06-11 | 2016-12-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Nodes and methods for handling packet flows |
| US11068315B2 (en) * | 2018-04-03 | 2021-07-20 | Nutanix, Inc. | Hypervisor attached volume group load balancing |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4435840A (en) * | 1981-06-22 | 1984-03-06 | Nippon Electric Co., Ltd. | Radio mobile communication system wherein probability of loss of calls is reduced without a surplus of base station equipment |
| US4612415A (en) * | 1984-08-03 | 1986-09-16 | Motorola, Inc. | Dynamic control of telephone traffic in a trunked radio system |
| US4670899A (en) * | 1985-05-31 | 1987-06-02 | Northern Telecom Limited | Load balancing for cellular radiotelephone system |
| US4759051A (en) * | 1987-03-16 | 1988-07-19 | A. A. Hopeman, III | Communications system |
| US5034993A (en) * | 1989-03-15 | 1991-07-23 | Motorola, Inc. | Method for allocating communication resources among RF communications systems |
| US5048116A (en) * | 1989-05-24 | 1991-09-10 | Motorola, Inc. | Signal routing system |
| FR2649560B1 (en) * | 1989-06-12 | 1994-08-05 | Matra Communication | TRANSMISSION BASE FOR A RADIOTELEPHONE COMMUNICATION DEVICE |
| US4974256A (en) * | 1989-06-30 | 1990-11-27 | At&T Bell Laboratories | Load balancing and overload control in a distributed processing telecommunications system |
| US5021801A (en) * | 1989-09-05 | 1991-06-04 | Motorola, Inc. | Antenna switching system |
| US5179720A (en) * | 1990-02-23 | 1993-01-12 | Motorola, Inc. | Method and apparatus for extended coverage of a trunked radio communications system |
| US5105420A (en) * | 1990-04-09 | 1992-04-14 | At&T Bell Laboratories | Method and apparatus for reconfiguring interconnections between switching system functional units |
| FR2664768B1 (en) * | 1990-07-12 | 1994-04-01 | Alain Charbonnier | REGULATION OF THE LOAD OF FIXED STATIONS IN A CELLULAR RADIOCOMMUNICATION NETWORK. |
| US5241685A (en) * | 1991-03-15 | 1993-08-31 | Telefonaktiebolaget L M Ericsson | Load sharing control for a mobile cellular radio system |
| US5379448A (en) * | 1991-08-05 | 1995-01-03 | International Business Machines | Load balancing in a digital communications network using radio links |
| JPH0591035A (en) * | 1991-09-26 | 1993-04-09 | Nec Corp | Radio base station connection system |
-
1995
- 1995-06-07 DE DE69528765T patent/DE69528765T2/en not_active Expired - Lifetime
- 1995-06-07 WO PCT/SE1995/000664 patent/WO1995035639A2/en active IP Right Grant
- 1995-06-07 CN CN95193636A patent/CN1074639C/en not_active Expired - Fee Related
- 1995-06-07 JP JP8502024A patent/JPH10501940A/en not_active Withdrawn
- 1995-06-07 AU AU27573/95A patent/AU2757395A/en not_active Abandoned
- 1995-06-07 EP EP95922828A patent/EP0765584B1/en not_active Expired - Lifetime
- 1995-06-07 CA CA002192934A patent/CA2192934C/en not_active Expired - Fee Related
-
1996
- 1996-12-13 FI FI965012A patent/FI114890B/en active IP Right Grant
-
1997
- 1997-02-06 US US08/796,900 patent/US5697054A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1074639C (en) | 2001-11-07 |
| CA2192934A1 (en) | 1995-12-28 |
| FI965012A (en) | 1997-02-07 |
| JPH10501940A (en) | 1998-02-17 |
| FI965012A0 (en) | 1996-12-13 |
| US5697054A (en) | 1997-12-09 |
| CN1152989A (en) | 1997-06-25 |
| WO1995035639A2 (en) | 1995-12-28 |
| EP0765584B1 (en) | 2002-11-06 |
| DE69528765T2 (en) | 2003-08-21 |
| EP0765584A2 (en) | 1997-04-02 |
| FI114890B (en) | 2005-01-14 |
| AU2757395A (en) | 1996-01-15 |
| WO1995035639A3 (en) | 1996-02-08 |
| DE69528765D1 (en) | 2002-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2192934C (en) | Transceiver handlers load sharing | |
| US5241686A (en) | Regulation of traffic load of fixed stations in a cellular radio communication network | |
| EP1060629B1 (en) | Load balancing of ongoing calls between different base station controllers | |
| AU2002240963B2 (en) | A Network and Method for Sharing Radio Access Nodes Between Core Networks | |
| US7489903B2 (en) | Method and system for exchanging the capacity reports in a radio access network | |
| EP0652644B1 (en) | Base station transmission-reception apparatus for cellular system | |
| CA2277438C (en) | Centralized radio network control in a mobile communications system | |
| EP1589773A1 (en) | Centralized cell homing and load balancing in a base station controller | |
| CN1296715A (en) | Method for establishing signaling connection with mobile station | |
| AU2793895A (en) | Subscriber paging control in a mobile communication system | |
| CA2307855C (en) | Methods of reconfiguring a cell in a cellular mobile radio system | |
| JPH0730945A (en) | Mobile communications channel changeover system and mobile station equipment | |
| US6553233B1 (en) | Method for calculating an optimal number of BTSs in a wireless network and determining a loading factor value therefor | |
| JPH1023497A (en) | Cellular radio telephone system utilizing centralized base station | |
| US5946628A (en) | Method and circuit arrangement for the access of cordless terminals to a telecommunications system | |
| AU1426900A (en) | Increased cell packet switched traffic capacity | |
| GB2379359A (en) | Paging area optimisation in cellular communications networks | |
| US6009329A (en) | System and method for hunting trunk lines with a GSM wireless base station and GSM wireless infrastructure employing the same | |
| JPH0568285A (en) | Radio line control method for mobile communication system | |
| KR100342513B1 (en) | Intercommunication method of private mobile communication service system | |
| JP2616677B2 (en) | Incoming and outgoing call control system for car phone system | |
| KR19980029651A (en) | Traffic Load Balancing Method using Frame Error Rate in Code Division Multiple Access Mobile System Control Station | |
| KR0161158B1 (en) | Cell selection method in a multi-cell structure using full electronic exchanger | |
| KR100308810B1 (en) | Method for converting calling channel between frequencies using power measurement report message and round-trip delay message | |
| Lipper | Switching system performance issues for universal personal communications |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150608 |
|
| MKLA | Lapsed |
Effective date: 20150608 |