CN1770671B - Resource managing method in WCDMA communication system and its system - Google Patents
Resource managing method in WCDMA communication system and its system Download PDFInfo
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- CN1770671B CN1770671B CN2004100678891A CN200410067889A CN1770671B CN 1770671 B CN1770671 B CN 1770671B CN 2004100678891 A CN2004100678891 A CN 2004100678891A CN 200410067889 A CN200410067889 A CN 200410067889A CN 1770671 B CN1770671 B CN 1770671B
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Abstract
This invention relates to mobile communication system and discloses one WCDMA communication system materials management method and its system, which comprises the following steps: Flow process module sending all needed materials to the materials management module; the materials management responding to the relative requirements and dispatching the materials according to relative materials status; if it successes, then informing the module to send the second requirement of materials requirement to each relative materials body; each relative materials body module responding to the second requirement new materials, wherein, If the establishing is unsuccessful, then informing the un-responding to the materials body and deleting the established materials and then deforming management module to delete materials.
Description
Technical field
The present invention relates to mobile communication system, particularly the resource management techniques in Wideband Code Division Multiple Access (WCDMA) (Wideband CodeDivision Multiple Access is called for short " the WCDMA ") communication system.
Background technology
Mobile communication technology has experienced the development from the analog-modulated to the digital modulation technique.The first generation adopts frequency division multiple access (Frequency Division Multiple Access is called for short " FDMA ") analogue modulation system, and the major defect of this system is that the availability of frequency spectrum is low, and signaling is disturbed voice service.Second generation cellular system mainly adopts time division multiple access (Time Division Multiple Access is called for short " TDMA ") digital modulation mode, has improved power system capacity, and has adopted independent channel to transmit signaling, and systematic function is greatly improved.Global system for mobile communications (Global System for mobile Communication is called for short " GSM ") is exactly second generation mobile communication (2nd Generation is called for short " 2G ") technology representative based on this.
But the 2G technology can not satisfy the frequency resource anxiety that the sharp increase of social progress and number of users causes, and can not satisfy growing data service requirement.So bigger power system capacity can be provided, higher communication quality, the 2Mbit/S data service can be provided, the requirement of multimedia communication and 3G (Third Generation) Moblie (3rd Generation is called for short " the 3G ") system that adapts to the individualized developing direction of communication are just accumulate educate and give birth to satisfy people.WCDMA is based upon one of 3G global standards on code division multiple access (Code DivisionMultiple Access is called for short " the CDMA ") technical foundation exactly.
The main characteristics of WCDMA are, network using land radio access web (UniversalTerrestrial Radio Access Network, be called for short " UTRAN ") structure, comprise core net, radio network controller (Radio Network Controller is called for short " RNC ") and base station (Node B) three layer entities.Core net wherein is with (the Mobile Switching Center of mobile switching centre of GSM, be called for short " MSC ") and the packet switching network (Packet Switch Network, be called for short " PSN ") be the basis, RNC and Node B then form the wireless access network relatively independent with core net, corresponding to (the Base Station Controller of the base station controller in the GSM network, be called for short " BSC ") and base station transceiver (Base Transceiver Station, be called for short " BTS "), such structure obviously helps realizing the smooth evolution of 2G to 3G network very much.
This shows Node B system occupied fundamental position in whole WCDMA.Node B mainly finishes the processing of Uu interface physical layer protocol by the Iub interface and the RNC interconnection of standard.It generally is made of radio-frequency receiving-transmitting amplification, radio-frequency system, baseband portion, coffret unit, this five big logic function role of base stations control part.Its major function is the mutual conversion of spread spectrum, modulation, chnnel coding and despreading, demodulation, channel-decoding, baseband signal and radiofrequency signal, and some are as the radio resource management function of inner loop power control etc.The finishing of this wherein each function all needs a plurality of roles to cooperate to finish, need call various resources.Here basic functions---setting up the sub-district is example with, just needs Node B to carry out the management and dispatching of every resources such as base band, radio frequency.If administrative mechanism is bad, work entails is inharmonious between each role so, and the management of resource also can go wrong, and it is unsuccessful that this wherein any mistake all can cause whole functional to be carried out at last.
In order to obtain more effective resource management, the prior art scheme is to adopt distributive resource managing method.Describe this method in detail below in conjunction with Fig. 1.
This kind scheme relates to flow processing module 10, resource entity module 11, resource entity module 12, resource entity module 13, and resource entity module possibility is more than three in the real system.Need to prove that the resource entity module here is exactly some the concrete Resource Unit among the above-mentioned five big logic function roles.
During concrete the execution, at first,, obtain an input, promptly finish the desired resource general status of certain function from the outside in step 100.Flow processing module 10 is carried out simple resource to it and is decomposed.
After decomposition is finished, in step 110, directly it is transmitted to each related resource entity module and handles, promptly resource entity module 11, resource entity module 12, resource entity module 13 are handled.Carry out the management of resource by each resource entity module, return corresponding disposition by each resource entity module then.
At last, in step 120, if the information that each resource entity module all turns back to flow processing module 10 is success, show that the resource entity module has idle resource to provide service for this function, then flow processing module 10 is returned the message that runs succeeded to higher layer applications, otherwise returns failure.
Under the situation of prior art scheme, resource management is cooperated by flow processing module 10 and each resource entity module to be finished, the task of management resource be can't help flow processing module 10 and is taken on fully, but be distributed to everywhere, wherein the resource management carried out of flow processing module 10 is auxilliary, the resource management of each resource entity module is main, forms the distributed resource management framework.
In actual applications, there is following problem in such scheme: because each resource entity module directly manages resource, the flow processing module is responsible for back work, in resource allocation process, do not understand detailed resource information, also can't carry out unified scheduling, therefore, not only cooperate inconsistent between the resource entity module resource, and the flow processing module knows that to the final step side that distributes resource is not enough, so inefficient assignment.In addition, also can't carry out unified resource allocation and resource consolidation.
Summary of the invention
In view of this, main purpose of the present invention is to provide method for managing resource and the system thereof in a kind of WCDMA communication system, make to have solved to cooperate inconsistent problem in the prior art between the resource entity module, and improved allocative efficiency, realize the integration of resource better.
For achieving the above object, the invention provides the method for managing resource in a kind of WCDMA communication system, comprise following steps:
When A carried out a function when needs, the flow processing module was distributed the required whole resources of this function of execution to the resource management module request, and wherein said resource management module is used for the resource of each resource entity module is carried out condition monitoring and distribution;
The described resource management module response of B described request according to described request and resource status, is carried out resource allocation, if be allocated successfully, then notifies the flow process processing module to issue second request of setting up resource entity to each related resource entity module;
New resource is set up in described second request of described each the relevant resource entity module responds of C.
Wherein, in described step B, if in the resource allocation process, arbitrary resource requirement distributes unsuccessful, and then described resource management module discharges the resource of having distributed, and to described flow processing module feeding back unsuccessful response.
Among the described step C, also comprise described each relevant resource entity module is set up substep from the result to described flow processing module feedback resources; And
Described method also comprises following steps:
The described flow processing module of D is set up the result according to described resource, judge whether all successes of resources foundation, if, then return success response to higher layer applications, if not, then notice does not respond as yet and has set up the resource that successful resource entity module deletion has been set up, and notifies described resource management module to delete Resources allocation, returns failure response to higher layer applications.
Described step C also comprises following substep:
Described second request of described each relevant resource entity module responds judges whether resource requirement conflicts with the resource existence that has existed, if, then delete already present resource, set up new resources again; Otherwise directly set up new resources;
Described function is that the sub-district is set up, and described resource comprises downlink coding resource, descending modulation resources, up-downgoing radio frequency resource, downlink broadcast resource, uplink demodulation resource and up decode resources.
Described function is that Radio Link is set up, and described resource comprises downlink coding resource, uplink demodulation resource and up decode resources.
The present invention also provides the resource management system in a kind of WCDMA communication system, comprises flow processing module, resource management module and at least one resource entity module, wherein,
Described flow processing module is used for when needs are carried out a function, distribute the required whole resources of this function of execution to described resource management module request, and, issue second request of setting up resource entity to each related resource entity module according to the feedback message of the resource allocation success of described resource management module;
Described resource entity module is used for setting up new resource according to described second request;
Described resource management module is used for the resource of each resource entity module is carried out condition monitoring, and according to the request of described flow processing module, and the resource status in each relevant resource entity module, carry out resource allocation, and allocation result is fed back to described flow processing module.
Wherein, described resource entity module also is used for setting up the result to described flow processing module feedback resources;
Described flow processing module also is used for according to setting up the result from the resource of described resource entity module, judge whether all successes of resources foundation, if, then return success response to higher layer applications, if not, then notice does not respond as yet and has set up the resource that successful resource entity module deletion has been set up, and notifies described resource management module to delete Resources allocation, returns failure response to higher layer applications.
Described resource entity module also is used for according to described second request, judges whether resource requirement conflicts with the resource existence that has existed, if, then delete already present resource, set up new resources again; Otherwise directly set up new resources.
By relatively finding, technical scheme difference with the prior art of the present invention is, introduce the resource that is used for each resource entity module and carried out condition monitoring, and the resource management module that carries out resource allocation and allocation result is fed back to the flow processing module.
Specifically, in method for managing resource of the present invention, resource management module is according to the request of carrying out whole resources of a function from the distribution of workflow management module, and described resource status, carry out resource allocation, if be allocated successfully, then order each related resource entity module to set up resource entity; If get nowhere, then discharge the resource of having distributed if distribute.In method for managing resource of the present invention, new resource management module and workflow management module and resource entity module are together finished resource allocation process, and wherein resource management module plays the effect of unified monitoring and scheduling.
In addition, in the present invention, do not set up all case of successful for reaching all resources, then notice does not respond as yet and has set up the resource that successful resource entity module deletion has been set up, and notifies described resource management module to delete Resources allocation.
Difference on this technical scheme has brought comparatively significantly beneficial effect, has solved each resource entity module and has cooperated inconsistent problem.And, because resource management module discharges the resource of having distributed when resource allocation is unsuccessful, therefore improved allocative efficiency, implement resource integration better.
Description of drawings
Fig. 1 is a distributive resource managing method schematic diagram in the prior art;
Fig. 2 is the principle and the workflow diagram of the method for managing resource in the WCDMA communication system of an embodiment in according to the present invention;
Fig. 3 is the resource of an embodiment in according to the present invention flow processing resume module schematic flow sheet when setting up failure;
Fig. 4 is the resource entity resume module schematic flow sheet of an embodiment in according to the present invention;
Fig. 5 is the schematic diagram of the resource management system in the WCDMA communication system according to an embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Generally speaking, principle of the present invention is: the first, and by the ability and the state of resource management center monitoring resource entity module, and concentrate all related resources are distributed.Secondly, carry out the resource rollback after resource management center resource allocation failure, discharge the resource of having distributed, notification streams thread management module issues the resource entity request of setting up to the resource entity module after resource management center resource allocation success.In addition, in setting up the resource entity process, if failure then discharges Resources allocation by resource management center.Cooperate inconsistent problem thereby efficiently solve each resource entity module, and improved allocative efficiency, implement resource integration better.
Below in conjunction with Fig. 2, launch in detail according to one embodiment of present invention, further explain and illustrate the principle and the workflow of method for managing resource in the WCDMA communication system that proposes among the present invention.
As shown in Figure 2, in step 210,, then just send resource request message, then enter step 220 to the flow processing module if higher layer applications needs concrete resource to finish its function.
In step 220, required whole resources in the request message that it accepts are at first analyzed and put in order to the flow processing module, usually the required resource of function of finishing a higher layer applications has numerous species, for example, set up if described higher layer applications function is the sub-district, then finish the required resource of this function and comprise downlink coding resource, descending modulation resources, up-downgoing radio frequency resource, downlink broadcast resource, uplink demodulation resource and up decode resources; Set up if described function is a Radio Link, then finish the required resource of this function and comprise downlink coding resource, uplink demodulation resource and up decode resources.After the flow processing module analysis was put out all kinds resource that needs in the request message that it accepts in order, the flow processing module had just assigned all resources that the higher layer applications function needs to the resource management module request.Here need to prove that the resource management module among the present invention is an initiate module, it is used for the resource of each resource entity module is carried out condition monitoring and distribution, hereinafter can be further detailed this module.
After this, in step 230, resource management module detects the resource status of understanding in each resource entity module by real-time, and distributes according to the resource that the flow processing module asks to distribute, and judges whether resource allocation is successful.
If have certain or a plurality of resource not to be allocated successfully in the flow processing module requested resource, just change step 280 over to; If all resources of flow processing module request all become the distribution of work, then change step 240 over to.
In step 240, resource management module notice flow process processing module issues second request of setting up resource entity to each related resource entity module, sets up new resource after each relevant resource entity module receives this request.
Here need in conjunction with Fig. 4, further specify the detailed process that new resources are set up in second request of resource entity module responds.
As shown in Figure 4, at first in step 410, relevant resource entity module receives second request of setting up resource that the flow processing module sends over, should go out to respond the described required resource of second request of setting up resource by relevant resource entity module analysis, the resource entity module transits to wait state then, changes step 420 over to.
In step 420, whether systems inspection and the resource of judging application be and the resource contention of having set up.Need to prove that these resources of having set up comprise the resource of uniqueness, as the sign indicating number resource in the NodeB system, circuit number resource, Id resource etc.If the resource contention of having set up then just enters step 430, delete old resource, enter step 440 then, set up new resources; If the resource contention that does not have and set up then just directly enters step 440, set up new resources.
Then enter step 450, in this step, the resource of being applied for has been set up, and then this resource entity module returns success the message of setting up resource to the flow processing module, and this resource entity module transits to idle condition from wait state then.
The process of step 240 has been done detailed explanation above, continued below flow process of the present invention to be described with reference to Fig. 2.
In step 250, under not overtime situation, the flow processing module whenever receives the message that resource is set up in success that a resource entity module returns, just with the state of this resource entity module from as yet not success response change success response into.The flow processing module checks whether the state of all resource entity modules that it writes down has all changed success response into then, if relevant all resource entity modules all be labeled as success response, then show all successfully foundation of all required resources of higher layer applications, change step 260 over to; If overtime, illustrate to also have relevant resource entity module marks to be not success response as yet, then show resource foundation failure, change step 270 over to.
In step 260, all resources that higher layer applications is applied for are all successfully set up, and the flow processing module returns success response to higher layer applications, and transits to idle condition from wait state.
In step 270,, so the resource of having set up will be deleted by system, notify resource management module simultaneously, and return failure response to higher layer applications because resource is set up failure.
Here need in conjunction with Fig. 3, further specify the detailed process that resource is set up failure back flow processing resume module.
As shown in Figure 3, at first in step 310, the flow processing module sends the deletion message related to resources to the resource entity module that does not have success response to set up and successfully set up resource; Then enter step 320 and return the message of failure response to higher layer applications; The flow processing module is deleted the resource of having distributed to the resource management module application in step 330 then, and resource management module is deleted the resource of having distributed with the application of responding process processing module, to keep the consistency of resource allocation; In step 340, the flow processing module transits to idle condition from wait state at last.
The process of step 270 has been done detailed explanation above, continued below flow process of the present invention to be described with reference to Fig. 2.
In step 280, because certain cause specific, damage such as the base station, certain or some resource that higher layer applications is applied for is temporarily unavailable, the failure of resource management module Resources allocation, so resource management module will be deleted the resource of having distributed, co-current flow journey processing module is returned the resource allocation failure.After the flow processing module received the resource allocation failure that resource management module returns, the flow processing module transitted to idle condition from wait state.
Above method for managing resource in the WCDMA communication system of the present invention's proposition is explained and illustrated, next will be in conjunction with Fig. 5, the principle and the workflow of the resource management system in the WCDMA communication system that description the present invention proposes.
As shown in Figure 5, the resource management system that proposes among the present invention comprises resource management module 510, flow processing module 520 and resource entity module 530,540 and 550.It is pointed out that in other embodiments at concrete WCDMA communication system, the number of resource entity module is not quite similar.
Flow processing module 520 and resource management module 510 link to each other by interface, and the interface of this flow processing module 520 and resource management module 510 is used for application, discharges resource and resource notification, message interface or function call.For example, flow processing module 520 is a foundation to finish the required resource of certain higher layer applications function, to resource management module 510 resource allocation request is proposed by this interface, and after resource management module 510 successful Resources allocation, also send the message that is allocated successfully to flow processing module 520 by this interface; If resource allocation failure, 510 of resource management modules are passed through this interface and are sent the resource allocation failures to flow processing module 520.
Flow processing module 520 also links to each other by interface with 550 etc. with several resource entity modules 530,540 simultaneously, by these interfaces, flow processing module 520 can send second request message that set up resource to each resource entity module, and whether successful each resource entity module also can be returned resource to flow processing module 520 by these interfaces and set up message.
On the other hand, resource management module 510 also links to each other by interface with 550 with each related resource entity module 530,540, by these interfaces, resource management module can detect the state of each related resource entity module in real time, be good or break down that this resource entity module is whether available etc. such as relevant resource entity module.
Flow processing module 520 is used for when needs are carried out a function, distribute the required whole resources of this function of execution to the resource management module request, and, issue second request of setting up resource entity to each related resource entity module according to the feedback message of the resource allocation success of resource management module.
In addition, this module also is used for according to setting up the result from the resource of resource entity module, judge whether all successes of resources foundation, if, then to the success response of resource management module feedback, if not, then notice does not respond as yet and has set up the resource that successful resource entity module deletion has been set up, and the notice resource management module is deleted Resources allocation.
Resource entity module 530,540 and 550 is used for asking according to above-mentioned second of the resource entity of setting up, and sets up new resource, and co-current flow journey processing module feedback resources is set up the result.Set up in the process in resource, this module is responsible for judging whether resource requirement conflicts with the resource existence that has existed, if, then delete already present resource, set up new resources again; Otherwise directly set up new resources.
Resource management module 510 is used for the resource of each resource entity module is carried out condition monitoring, and according to the request of flow processing module, and the resource status in each relevant resource entity module, carry out resource allocation, and allocation result is fed back to the flow processing module.
The arrangement structure of the resource management system that the present invention is proposed and the effect that each several part constitutes are illustrated above, further describe the course of work of this system below.
When higher layer applications need be finished certain function, send resource request message to flow processing module 520.Required whole resources in the resource request message that it accepts are at first analyzed and put in order to flow processing module 520, and assigned all resources that the higher layer applications function needs to resource management module 510 requests.
After this, the request of the Resources allocation of resource management module 510 responding process processing modules 520, and according to its in real time the state of resource entity of monitoring distribute related resource.
In assigning process, if having certain or a plurality of resource not to be allocated successfully, resource management module 510 will discharge the resource of having distributed, and co-current flow journey processing module 520 feeds back to failure response.After flow processing module 520 received the message of the failure response that resource management module 510 feeds back to, flow processing module 520 transitted to idle condition from wait state.
If all related resources all become the distribution of work, resource management module 510 just notifies flow process processing module 520 to issue second request of setting up resource entity to each related resource entity module.New resources are set up in each relevant resource entity module responds request.
In setting up the new resources process, whether the resource that application is at first checked by system is and the resource contention of having set up.As mentioned above, these resources of having set up comprise the resource of uniqueness, as the sign indicating number resource in the NodeB system, circuit number resource, Id resource etc.If the resource contention of having set up is then just deleted old resource, set up new resources then; If the resource contention that does not have and set up is then just directly set up new resources, the resource entity module transits to idle condition then.
If flow processing module 520 receives the message that resource is set up in success that each relevant resource entity module returns, then flow processing module 520 is success response with regard to the state of revising each related resource entity module. after all related resources are set up successfully, flow processing module 520 returns success response to resource management module 510, and transits to idle condition from wait state.
On the other hand, if some relevant resource entity module is set up resource failure or response timeout, then resource is set up failure, and flow processing module 520 sends the deletion message related to resources to the resource entity module that does not have success response to set up and successfully set up resource; Then return the message of failure response to higher layer applications; The flow processing module 520 notice resource management modules 510 deletions resource of having distributed then, flow processing module 520 transits to idle condition from wait state simultaneously.The resource that the notice deletion of resource management module 510 responding process processing modules 520 has distributed.
Though by reference some preferred embodiment of the present invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that, can do various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (9)
1. the method for managing resource in the broadband CDMA system is characterized in that, comprises following steps:
When A carried out a function when needs, the flow processing module was distributed the required whole resources of this function of execution to the resource management module request, and wherein said resource management module is used for the resource of each resource entity module is carried out condition monitoring and distribution;
The described resource management module response of B described request according to described request and resource status, is carried out resource allocation, if be allocated successfully, then notifies the flow process processing module to issue second request of setting up resource entity to each related resource entity module;
New resource is set up in described second request of described each the relevant resource entity module responds of C.
2. the method for managing resource in the broadband CDMA system according to claim 1, it is characterized in that, in described step B, if in the resource allocation process, arbitrary resource requirement distributes unsuccessful, then described resource management module discharges the resource of having distributed, and to described flow processing module feeding back unsuccessful response.
3. the method for managing resource in the broadband CDMA system according to claim 1 is characterized in that, among the described step C, also comprises described each relevant resource entity module is set up substep from the result to described flow processing module feedback resources; And
Described method also comprises following steps:
The described flow processing module of D is set up the result according to described resource, judge whether all successes of resources foundation, if, then return success response to higher layer applications, if not, then notice does not respond as yet and has set up the resource that successful resource entity module deletion has been set up, and notifies described resource management module to delete Resources allocation, returns failure response to high level.
4. according to the method for managing resource in claim 1, the 2 or 3 described broadband CDMA systems, it is characterized in that described step C also comprises following substep:
Described second request of described each relevant resource entity module responds judges whether resource requirement conflicts with the resource existence that has existed, if, then delete already present resource, set up new resources again; Otherwise directly set up new resources;
5. according to the method for managing resource in claim 1, the 2 or 3 described broadband CDMA systems, it is characterized in that, described function is that the sub-district is set up, and described resource comprises downlink coding resource, descending modulation resources, up-downgoing radio frequency resource, downlink broadcast resource, uplink demodulation resource and up decode resources.
6. according to the method for managing resource in claim 1, the 2 or 3 described broadband CDMA systems, it is characterized in that described function is that Radio Link is set up, and described resource comprises downlink coding resource, uplink demodulation resource and up decode resources.
7. the resource management system in the broadband CDMA system is characterized in that, comprises flow processing module, resource management module and at least one resource entity module, wherein,
Described flow processing module is used for when needs are carried out a function, distribute the required whole resources of this function of execution to described resource management module request, and, issue second request of setting up resource entity to each related resource entity module according to the feedback message of the resource allocation success of described resource management module;
Described resource entity module is used for setting up new resource according to described second request;
Described resource management module is used for the resource of each resource entity module is carried out condition monitoring, and according to the request of described flow processing module, and the resource status in each relevant resource entity module, carry out resource allocation, and allocation result is fed back to described flow processing module.
8. the resource management system in the broadband CDMA system according to claim 7 is characterized in that, described resource entity module also is used for setting up the result to described flow processing module feedback resources;
Described flow processing module also is used for according to setting up the result from the resource of described resource entity module, judge whether all successes of resources foundation, if, then to the success response of described resource management module feedback, if not, then notice does not respond as yet and has set up the resource that successful resource entity module deletion has been set up, and notifies described resource management module to delete Resources allocation.
9. the resource management system in the broadband CDMA system according to claim 7, it is characterized in that, described resource entity module also is used for according to described second request, judge whether resource requirement conflicts with the resource existence that has existed, if, then delete already present resource, set up new resources again; Otherwise directly set up new resources.
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| CN106572447A (en) * | 2015-10-10 | 2017-04-19 | 中兴通讯股份有限公司 | Resource control method and device |
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| EP1389856A1 (en) * | 2002-08-13 | 2004-02-18 | Siemens Aktiengesellschaft | Method to allocate radio resources in an ad-hoc radio communication system |
| EP1420604A1 (en) * | 2002-11-16 | 2004-05-19 | Siemens Mobile Communications S.p.A. | Traffic load management method based on the exchange of service specific free capacity information elements among radio access network controllers |
| CN1507764A (en) * | 2001-01-12 | 2004-06-23 | ��������ķ������ | Method for processing resource management in a mobile communication system |
| CN1525767A (en) * | 2003-02-28 | 2004-09-01 | ��Ϊ��������˾ | A resource distribution method in mobile communication system |
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| CN1507764A (en) * | 2001-01-12 | 2004-06-23 | ��������ķ������ | Method for processing resource management in a mobile communication system |
| EP1389856A1 (en) * | 2002-08-13 | 2004-02-18 | Siemens Aktiengesellschaft | Method to allocate radio resources in an ad-hoc radio communication system |
| EP1420604A1 (en) * | 2002-11-16 | 2004-05-19 | Siemens Mobile Communications S.p.A. | Traffic load management method based on the exchange of service specific free capacity information elements among radio access network controllers |
| CN1525767A (en) * | 2003-02-28 | 2004-09-01 | ��Ϊ��������˾ | A resource distribution method in mobile communication system |
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