CN104618968A - Method for controlling transmission resource in mobile wireless system with double conveying modes - Google Patents
Method for controlling transmission resource in mobile wireless system with double conveying modes Download PDFInfo
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- CN104618968A CN104618968A CN201410840168.3A CN201410840168A CN104618968A CN 104618968 A CN104618968 A CN 104618968A CN 201410840168 A CN201410840168 A CN 201410840168A CN 104618968 A CN104618968 A CN 104618968A
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Abstract
The invention relates to a use method for controlling a transmission resource. The transmission resource for transmission between a first entity (200) and a second entity (204) can be at least used by a first connection (205) and a second connection (219). The method includes the steps: examining (208 and 211) whether the QoS (quality of service) requirements of the first connection (205) can be met or not when the transmission resource is collectively used by the first connection (205) and the second connection (219); correspondingly controlling (212) the fact that at least one portion of the transmission resource is used by at least one of the first connection (205) and the second connection (219). The connections can be packet switching (205) and circuit switching (219) connections capable of supporting DTMs (double conveying modes) in universal packet wireless systems.
Description
Divisional application
The application is that application number is 200480042646.0 and denomination of invention is the divisional application of the patent application of " in the mobile radio system with dual transfer mode controls transfer resource ".
Technical field
The present invention relates to the method for the use for controls transfer resource, the transfer resource of the transmission link wherein between first instance with second instance can be connected by least the first and the second connection uses.
Background technology
In block data system, according to third generation partner program (3GPP) standard, it is particularly including GPRS (GPRS) and growth thereof, service quality (QoS) mechanism is for service quality (QoS) specification of asking with ensure that certain is connected for grouped data, that is, packet data protocol (PDP) context.An example of this QoS specification is the bit rate connected, but also can use other qos parameter defined in 3GPP standard.
The bit rate that block data system can be supported depends on the ability of both travelling carriage and network.One of key constraints is the multiple-grooved rank of travelling carriage, the number (in gprs system, the scope of this multiple-grooved rank is by 1 to 8) of its instruction manageable Packet Data Channel of travelling carriage (PDCH).Significantly, the bit rate of the maximum bit rate that the application of a certain QoS of demand can only ask the multiple-grooved rank being less than or equal to this travelling carriage to be supported in travelling carriage.Then network judges to ensure bit rate (GBR) according to the ability of this travelling carriage, but in described judgement, also use the parameter that some other networks are relevant, such as, and network payload.
Dual transfer mode (DTM) makes to carry out circuit switching (CS) in mobile wireless network simultaneously and is connected with packet switching (PS).Substantially, this means that a part for the air interface capability of travelling carriage assigns out also for CS channel in being used by pure PS.Therefore, between DTM active period for PS connect maximum available bit rate lower than only between PS active period.Due to PDP Context, the grouped data namely with relevant QoS connects, preserve usually for a long time, when qos parameter when being ensured by network, needs the DTM considering to walk abreast under some modes to activate by travelling carriage request.
According to 3GPP standard, arrange (DTM Model Establishment) period at parallel join, CS connects current being set to and has precedence over PS connection.That this also to mean in PS connection operation and depend on the application of the QoS of the preceding negotiation connected for described PS can significantly by the infringement that parallel CS connects, because when parallel CS connection is set to preferential, the bit rate that PS connects may drop to greatly lower than guarantee bit rate, and the described application run in described PS connection then may no longer suitably be worked.
In addition, when connect at the PS that set up increase CS connect time, the resource such as disposal ability and storage limit of travelling carriage may uncontrolledly exceed, thus affect PS with CS be connected both and use the application of described connection.
Summary of the invention
Therefore the object of the present invention is to provide for the use of controls transfer resource, the method overcoming the problems referred to above, equipment, computer program, computer program, system, travelling carriage and network element.
Propose the method for the use for controls transfer resource, transfer resource wherein for the transmission between first instance with second instance can be connected by least the first and the second connection use, comprise when described transfer resource by described first connect to be connected with described second jointly use time, check whether the described first qos requirement connected still can be guaranteed, and correspondingly control by first (205) being connected use at least partially to described transfer resource with second (219) described at least one.
Described transmission can be such as the wired or wireless transmission between the transmitter as first instance and the receiver as second instance.Described entity can be such as the protocol entity in described transmitter and receiver, and described transmission can be tied on the logic OR physical link between described protocol entity.Described transmission can be provided by carrying service.Described transfer resource for described transmission can connect use by described at least two, and this connection can be such as that described transmitter is connected with the packet switching between receiver or circuit switching.Therefore two packet switching connections, two circuit switching connections or a packet switching connection are connected common use transfer resource with a circuit switching be possible.Transfer resource is also possible by the uses more than two connections of identical or different type.One in described connection had been established before described inspection step is possible.Described first and/or the data transmission capabilities of second instance can represent its characteristic by described transfer resource, this transfer resource such as can represent time slot, frequency channels, polarization mode, antenna beam or the similar quantity that can be supported by described first and/or second instance.For different connection groups (constellation), described transfer resource can be different.Described transfer resource also can depend on the described transmission link between described transmitter and receiver further.Such as, described transfer resource can not be the time slot of available whole number in upstream or downstream isl frame, and being only its segment, this is the limited ability due to first instance process high data rate or a large amount of time slot, or the clipping owing to being applied by second instance.Described first and second connections jointly can use or jointly not use the transfer resource for described transmission to be possible, and this depends on the described first qos requirement connected, and this qos requirement can such as be defined by that fix or minimum bit rate.If the common use of described transfer resource is possible, then described first and second connect and can share transfer resource, several time slots of such as each up link and/or descending chain circuit frame can connect use by described first, and several time slots of each up link and/or down link can connect use by described second.If the demand of the transfer resource of one of described connection is greater than available transfer resource, if or two demand sums of transfer resources connected be greater than available transfer resource, then the common use of described transfer resource is impossible.
In order to control the use of described transfer resource, first described method checks under the observation of the described first qos requirement connected whether described transfer resource can connect common use by described first and second.If relate to more than two connections, correspondingly, then must check whether described transfer resource can be used by all described connections jointly.Described inspection step can comprise and the described first described qos requirement connected transform to can measuring compared with described transfer resource, or determine available described transfer resource self.Qos requirement or the demand of the described second transfer resource connected also can be considered in described inspection step.Observe and there is the qos requirement of the connection of lower priority, and suppose that transfer resource enough meets the qos requirement with the connection of higher priority or transmission resource needs can be preferred.
According to checking the result of step, being controlled by the described first and second uses connected one of at least at least partially of described transfer resource.Described control such as can comprise the described first termination connected or release, or distribute to the described first transfer resource part connected (relate to the reduction of the qos requirement that described first connects and/or change the operable transfer resource part of described first connection) before changing, improve the available transfer resource part of the maybe can set up second connection set up, or it can comprise the described second obstruction connected.
Therefore contrast with prior art, then whether the second establishment of connection described in prior art and described first qos requirement be connected still can the guaranteed fact have nothing to do, according to the present invention, first it check under the observation of the described first qos requirement connected whether the common use of transfer resource is possible, and, depend on this result determined, described transfer resource is controlled by the use that described first and/or second connects.This guarantees that described first connects the QoS remaining a certain guarantee, or alternatively, is stopped or discharge under the mode be controlled.This QoS can be less than and originally connect to described first the QoS ensured.But, due to the negotiation to this QoS, ensure that and use the suitable functional of the described first application connected.Check that step considers that transfer resource such as can be limited to the transmittability of the described first instance of the request combination connected for first and second, and therefore also guarantee that the hardware that described first instance uses is not connected overload by described first and second.
According to method of the present invention, when described transfer resource by described first connect to be connected with described second jointly use time, if determine that the described first described qos requirement connected no longer can be guaranteed, then described control is comprised termination by the first and second connections described at least one to the step of the use at least partially of described transfer resource or discharges described first connection can be preferred.
If at least the first and second connect and cannot jointly use described transfer resource described in determining in described inspection step, it can be favourable for then stopping or discharge described first connection, to avoid connecting the application run described first, such as stream transmits application, no longer suitably works.But stop to mean that the connection of termination the moment is authorized to the described transfer resource of access after a while, can discharges (or deexcitation) and mean that connection is terminated completely.When propose to have to connect request that second of higher priority connects than set up first time, to stop or release can connect and occur especially for built vertical first, make to set up new to connect and the connection interrupting having set up is favourable.Stop or discharge described first connection can relate to transmission signaling by described change notice second instance.
According to method of the present invention, when described transfer resource by described first connect to be connected with described second jointly use time, if determine that the described first described qos requirement connected no longer can be guaranteed, then described control comprises described second connection of obstruction by the first and second connections described at least one to the step of the use at least partially of described transfer resource can be preferred.
Also do not set up if (may be low priority) second connects and ask transfer resource, then blocking and can occur.If determine that available transfer resource can not meet the described request of the transfer resource that described second connects and the first qos requirement be connected set up, then described second connection gets clogged and will not be established.
According to method of the present invention, when described transfer resource by described first connect to be connected with described second jointly use time, if determine described first connect described qos requirement no longer can be guaranteed, then described control by described at least one first and second connect to the step of the use at least partially of described transfer resource comprise reduce described first connect qos requirement and change can by described first connect use described transfer resource part can be preferred.
When reducing original qos requirement, if use the described first application connected still can suitably work, then determined in described inspection step described transfer resource by the described first and second common uses connected for can not and therefore otherwise can by described first connect stop or release be conducive to described second connection after, the reduction of this qos requirement can be consulted in described rate-determining steps.According to the qos requirement reduced, then change and can connect by described first the transfer resource part used.Change described part and can relate to transmission signaling by described change notice second instance.
According to method of the present invention, when described transfer resource by described first connect to be connected with described second jointly use time, if determine that the described first described qos requirement connected still can be guaranteed, then described control comprises change by the first and second connections described at least one to the step of the use at least partially of described transfer resource can be able to be preferred by the described transfer resource part of described first connection use.
Described first is connected to the part being assigned with the described transfer resource being greater than the actual description of qos requirement that described first connects during it is set up can occur.Then described inspection step determines that the common use of described transfer resource is possible; But, in described rate-determining steps, still must connect described first the part that the transfer resource part used changes into its qos requirement actual demand.Change described part and can relate to transmission signaling by described change notice second instance.
According to method of the present invention, before described first and second connection establishments, perform described inspection and rate-determining steps can be preferred.
Described determine with rate-determining steps can such as prior to or perform during the described first connection establishment stage, be connected with second whether set up actually irrelevant.The advantage of the method is, when consider during described first connection establishment with this first is connected common use second of transfer resource to connect the possibility set up future time, when the described qos requirement of the first connection and the appropriate section of transfer resource are consulted between the entity setting up described first connection, it is seamlessly to occur that the described second future connected built on.This can be particular importance when second connects and have the priority higher compared with the first connection, make, when the foundation not looking to the future possible during described first connection establishment (and consumption of transfer resource), do not remain enough transfer resources when described second will be set up connect, make to stop or to discharge the first connection.Similarly, if the first connection has higher priority, then can block described second and connect.Therefore in both cases, omitting the termination of connection, release or obstruction by performing described inspection and rate-determining steps before two connection establishments, making each connection be assigned with the part be applicable to of described transfer resource.
According to method of the present invention, after described first connection establishment and before described second connection establishment, perform described inspection and rate-determining steps can be preferred.
If described first connection is set up, then it has been assigned with a part for transfer resource.When request second connects, then before described second connection establishment, advantageously check described first and second connect whether can jointly use described transfer resource.In addition, described control connects the step to the use of described transfer resource by described first and second, under the consideration of its qos requirement or under the reduction of described qos requirement, described first can be reduced and connect the transfer resource part used, and therefore make it possible to set up the fully large part that can use now transfer resource second connects, instead of connect or block described second connection (if the priority if there is no connected or described first connects have higher priority) by not distributing to described second by the remainder of the described transfer resource of described first connection use.If described second connection has higher priority, then connect by reducing described first release or the termination that the transfer resource part used can avoid described first connection, and still consider its qos requirement.
It should be noted that must not set up the second connection.Such as, if one of described first and second entities are the entities of the travelling carriage in wireless communication system, then do not supporting that it is possible for setting up described first connection during transfer resource is by the community of two common described wireless communication systems used of connection, makes described first to connect and can be assigned with all transfer resources.When this travelling carriage move to support that transfer resource is connected in the common communities used by two time, the above-mentioned situation will setting up the second connection can occur, and stopping, discharge or block described first and second, what connect can be necessary first.Therefore entering at described travelling carriage and support that transfer resource directly performs described inspection when being connected in the described community jointly used by two and rate-determining steps can be favourable, making to be reduced to distributing to the described first transfer resource connected the degree allowing the following possible seamless interpolation of the second connection.
According to method of the present invention, described transfer resource represent described first and/or the characteristic of data transmission capabilities of second instance can be preferred.
The quantity of the data can transmitted between described first instance with described second instance can represent its characteristic by the number of the operable unit of described connection in orthogonal or pseudo-orthogonal transmission space, such as, represent its characteristic by the quantity distributing to the time slot of described connection, frequency channels, polarization state, antenna beam or encoding channel.If described first and second entities are arranged in the network of travelling carriage and mobile radio system, such as comprise the mobile wireless network of the core network of Radio Access Network and/or described mobile radio system, then usual not every time slot, frequency channels, coding etc. will by network allocation to travelling carriages, to allow the multichannel of multiple travelling carriage to access.Therefore the connection between first and second entity described is available resource-constrained in network.In addition, the data-handling capacity of travelling carriage and memory further reduce the quantity of the data that described travelling carriage can transmit and receive, and the operable resource of described connection can be reduced further.
Therefore the operable transfer resource of described connection for the transmission between first and second entity described can be understood as and is limited to described both first and second entities.
According to method of the present invention, described inspection step can be preferred by controlling that example performs with described first and/or the interactional transfer resource of second instance at least in part.
When transfer resource is used jointly by described first and second connections, whether the qos requirement that described transfer resource control example can such as perform at least in part or initial described inspection first connects still can guaranteed step.
According to method of the present invention, the step that described inspection step comprises the ability of the hardware checking described first or second instance use can be preferred.
In described inspection step, about the qos requirement that described first connects, about transfer resource by described second consumption connected and be available about the information of transfer resource self be favourable, so that whether the common use can determining transfer resource is possible.The knowledge of described transfer resource can based on the knowledge of the ability of the hardware used about described first and/or second instance, such as, about the information of maximum processing capability or maximum memory capacity.This knowledge can be available for the form of the configuration file of the distinct group connected, and different disposal ability and the memory requirement of the difference mixing of dissimilar connection are described.
According to method of the present invention, in the network of the in a mobile station involved and wireless communication system of described entity, particularly in 2G or 3G mobile radio system, can be preferred.Described network can be such as the mobile wireless network of the core network comprising Radio Access Network and/or described wireless communication system.Described wireless communication system can such as at least in part according to GPRS (EGPRS) standard, Enhanced Data rates for GSM Evolution (EDGE) standard of GPRS (GPRS) standard, enhancing, (UMTS or other communication standard any operate universal mobile communications standard.In addition, described wireless communication system can operate according to WLAN (wireless local area network) (W-LAN) standard of such as HiperLAN, HiperLAN/2 or IEEE 802.11 and growth thereof.
According to method of the present invention, described connection is that packet switching between described travelling carriage and the described entity in described network and/or circuit switching be connected can be preferred.So described wireless communication system such as can support that the two or more packet switchinges jointly using same transfer resource connect, or the mixing that packet switching is connected with circuit switching.
According to method of the present invention, the described first described qos requirement connected is minimum bit rate can be preferred.This qos requirement such as can come from the application of higher level, transmits application or down load application as such as flowing.Also the average or maximum delay that other qos parameter such as divides into groups can be applied, or with the combination of the qos parameter of the form of QoS configuration file.
According to method of the present invention, it can be preferred that described wireless communication system can operate dual transfer mode (DTM), described dual transfer mode (DTM) comprises the packet switching connected as described first and connects, particularly according to GPRS (GPRS) or the connection of GPRS (EGPRS) that strengthens, and connect as the described second circuit switching connected, and wherein, when described transfer resource by described packet switching to be connected with described circuit switching jointly use time, described inspection step determines whether the bit rate requirement that described packet switching connects still can be guaranteed.
According to method of the present invention, described packet switching is connected with circuit switching to be provided by radio bearer, and in described inspection step, it can be preferred that described transfer resource controls example by carrying described in the notice of availability of described transfer resource.
Described carrying, such as GPRS carrying, then described transfer resource can be used to control the service of example to check the actual availability of transfer resource, it such as can represent the transfer resource part not also being assigned to connection, makes it possible to by determining whether described available transfer resource is enough to meet described circuit switching connection and determines described packet switching is connected whether can share described transfer resource with circuit switching.
According to method of the present invention, described transfer resource controls example and monitors the connection provided by described carrying, and at least based on the connection of described supervision with determine that the utilizability of described transfer resource can be preferred based on the hardware profile of described travelling carriage.
Described transfer resource controls example and can monitor the number connected and type that have activated with described travelling carriage and can consult the travelling carriage specialized hardware configuration file that can be stored in described transfer resource control example and determine current available transfer resource part.Can described hardware profile be developed for described travelling carriage and the different charge for considering travelling carriage can be made about the disposal ability and memory depending on the synthesis that packet switching and/or circuit switching connect during R & D.
Further provide computer program, have and can operate to cause processor to perform the instruction of said method step.
Further provide computer program, comprise the computer program having and can operate the instruction causing processor execution said method step.
Further provide wireless communication system, comprise at least one travelling carriage, and at least one network, wherein for the transmission between first instance with second instance transfer resource can by least the first be connected and second connect used, wherein when described transfer resource by described first connect to be connected with second jointly use time, check whether the described first qos requirement connected still can be guaranteed, and wherein correspondingly control by the first and second connections described at least one use at least partially of described transfer resource.
Described wireless communication system can be such as support 2G or the 3G mobile radio system of the DTM that packet switching is connected with circuit switching and be at least packet switching to connect guaranteed qos.Described network can comprise the core network of Radio Access Network and/or described wireless communication system.
Further provide the equipment of the use for controls transfer resource, wherein for the transmission between first instance with second instance transfer resource can by least the first be connected and second connect used, whether this equipment comprises qos requirement for checking described first connection when described transfer resource connects to be connected common use with described second by described first still can guaranteed device, and for correspondingly controlling at least in part by the device of the first and second connections to the use at least partially of described transfer resource described at least one.
Described equipment can be a part for the network of travelling carriage or wireless communication system, and wherein said network can comprise Radio Access Network and/or core network.Described equipment can be such as be embodied as the application-specific integrated circuit (ASIC) (ASIC) implemented for the described device checked and control.
Further provide the travelling carriage in wireless communication system, wherein can be connected by least the first for the transfer resource of the first instance in described travelling carriage and the transmission between the second instance in the network of described wireless communication system and second connect and used, whether described travelling carriage comprises qos requirement for checking described first connection when described transfer resource connects to be connected common use with described second by described first still can guaranteed device, and for correspondingly controlling by the device of the first and second connections to the use at least partially of described transfer resource described at least one.Described network can comprise the core network of Radio Access Network and/or described wireless communication system.
According to travelling carriage of the present invention, described transfer resource represents that the characteristic of the data transmission capabilities of described travelling carriage and/or network can be preferred.
According to travelling carriage of the present invention, for when described transfer resource by described first connect to be connected with described second jointly use time, whether the qos requirement checking described first connection still can comprise that to control example with the interactional transfer resource of described first instance in described travelling carriage can be preferred by guaranteed described device.
According to travelling carriage of the present invention, for when described transfer resource by described first connect to be connected with described second jointly use time, whether the qos requirement checking described first connection still can comprise for checking that by the device of ability of hardware of described first or second instance use can be preferred by guaranteed described device.
According to travelling carriage of the present invention, it can be preferred that described wireless communication system can operate dual transfer mode (DTM), this dual transfer mode (DTM) comprises the packet switching connected as described first and connects, particularly according to GPRS (GPRS) or the connection of GPRS (EGPRS) that strengthens, and connect as the described second circuit switching connected, and when described transfer resource by described packet switching to be connected with described circuit switching jointly use time, the described described device for checking determines whether the bit rate requirement that described packet switching connects still can be guaranteed.Packet switching according to other type of the third generation (3G) wireless communication standard or future wireless system standard connects, and according to being connected with the packet switching of future Wireless Local Area Networks (W-LAN) standard at present, also looks forward at this.
According to travelling carriage of the present invention, described packet switching is connected with circuit switching to be provided by radio bearer, and described transfer resource controls example comprises for can be preferred by the device carried described in the notice of availability of described transfer resource.
According to travelling carriage of the present invention, described transfer resource controls example and comprises for monitoring the connection that provided by described carrying and can being preferred for the device of the utilizability determining described transfer resource, wherein saidly determines at least based on the connection of described supervision and the hardware profile based on described travelling carriage.
Further provide the network element in wireless communication system, wherein can be connected by least the first for the transfer resource of the first instance in travelling carriage and the transmission between the second instance in the network of described wireless communication system and second connect and used, described network element comprise for when described transfer resource by described first connect to be connected with described second jointly use time, check that the described first qos requirement connected whether still can guaranteed device, and for correspondingly controlling by the first (205) device being connected the use at least partially to described transfer resource with second (219) described at least one.Described network element can be such as a part for described network, or can with described network cooperation.
Embodiment by reference to the following description, these and other aspect of the present invention will become obvious and be illustrated.
Accompanying drawing explanation
There is shown:
Fig. 1: according to the message sequence chart of method of the present invention, is wherein considering that setting up packet switching under circuit switching possible further connects connects;
Fig. 2: according to the message sequence chart of method of the present invention, wherein when described circuit switching connects by actual request, connects the packet switching of foundation and downgrades to be conducive to described circuit switching connection;
Fig. 3: according to the message sequence chart of method of the present invention, wherein when dual transfer mode (DTM) become can utilize time, the packet switching of foundation is connected and downgrades to be conducive to circuit switching and connect;
Fig. 4: according to the message sequence chart of method of the present invention, wherein when described circuit switching connects by actual request, connects the packet switching of foundation and stops to connect to be conducive to described circuit switching;
Fig. 5: according to the message sequence chart of method of the present invention, wherein when described circuit switching connects by actual request, connects the packet switching Connection Release of foundation to be conducive to described circuit switching;
Fig. 6: according to the message sequence chart of method of the present invention, the packet switching of wherein being set up by network configuration connection makes the DTM of the guaranteed QoS of tool be possible;
Fig. 7: represent the logical block required for the DTM implementing the guaranteed QoS of tool in travelling carriage embedded software environment according to the present invention;
Fig. 8: according to the flow chart of the possible embodiment of method of the present invention.
Embodiment
Fig. 1 represents the message sequence chart according to method of the present invention, is wherein considering that setting up packet switching (PS) under circuit switching (CS) possible further connects connects.Have GPRS (GPRS) radio bearer mobile radio system and be used in dual transfer mode (DTM) support PS be connected with circuit switching both ability here exemplarily consider.Easily see, by exchanging radio bearer, following examples of the present invention are also applied to the 3G system of picture such as universal mobile telecommunications system (UMTS).
Four vertical lines in Fig. 1 can think client (travelling carriage) 100, GPRS carrying 101, QoS & DTM controls the Service Access Point of example 102 and network 103, and the arrow between described vertical line represents the service primitive exchanged between described Service Access Point.
As in Fig. 1 indicated by step 105, mobile radio system is in idle condition at first.When being generated packet data protocol (PDP) context creation request 106 by client 100, its request has the PS establishment of connection of a certain service quality (QoS), and GPRS carrying 101 responds with carrying the context creation response 107 of context identifier as parameter.
According to the present invention, then described client 100 sends to GPRS carrying 101 and carries the context modification request 108 that parameter ensures bit rate (GBR).Described GBR parameter is set to its maximum of maximum number (MSMax) corresponding to multiple-grooved, and the travelling carriage in the number identification gprs system of wherein multiple-grooved can the number (scope is by 1 to 8) of Packet Data Channel (PDCH) of parallel processing.If described carrying 101 is 3G carrying instead of GPRS carrying, then the bit rate supported instead of the number of multiple-grooved can be used as the basis that GBR consults.
Then described GPRS carrying 101 controls example 102 to described QoS & DTM and sends inspection request 109, its first determine when consider future that circuit switching connects possible set up time can license to the available transfer resource of described PS connection.The described available transfer resource determined in step 110 is represented by the GBR allowed, and the GBR of this permission is the difference between MSMax and parameter CSConn, its circuit switching connection request how many time slots indicating described future possible.QoS & DTM controls example 102 GBR carrying described permission and responds as the inspection response 111 of parameter, and the contextual modifications then by corresponding to described context modification request 108 responds 112 that the GBR of described permission is sent to described client 110.At client-side, must determine that in step 113 whether the GBR of described permission is enough large with the qos requirement meeting the described PS connection of asking in the application at described client-side place.
According to the example of Fig. 1, the GBR of described permission is in fact enough large to be made to meet the qos requirement that described PS connects, and as what see from client-side, the common use that transfer resource is connected by the described PS connection circuit switching possible with described future is possible.
Then described client 100 sends the GBR with described permission or the less GBR still mated with its qos requirement to GPRS carrying 101 and carries 101 as the Context activation request 114, GPRS of parameter " new GBR " and send to network 103 the corresponding activation PDP Context request comprising the qos parameter comprising described new GBR.Network 103 such as load Network Based or more parameter determines whether described new GBR can be guaranteed, and accepts 116 with the GBR with mandate as the activation PDP Context of parameter and respond.GPRS carrying 101 to determine as the GBR by network authorization about the new GBR parameter sent in step 114 by client whether be acceptable in step 117, and if described QoS is acceptable, carry out customer in response end with the GBR comprising mandate as the context activation response 118 of parameter.Therefore described PS data cube computation has been established, and the transfer of data on described PS data cube computation can start in step 119.
Easily see, according to the example of Fig. 1, check and be connected at PS with rate-determining steps and performed before circuit switching connection establishment.Described inspection step can be identified as the combination of step 110 and 113, and described rate-determining steps originates in step 114.
Fig. 2 describes the message sequence chart according to method of the present invention, wherein when described circuit switching connects by actual request, is connected by the PS of foundation and downgrades to be conducive to described circuit switching connection.Except client 200, GPRS carrying 202, QoS & DTM control, except example 203 and network 204 Service Access Point, to there is call instance 201 Service Access Point of the acceptance being used for CS connection request 206 further.
In the figure 2 example, the PS with the GBR of the maximum number MSMax equaling multiple-grooved connects and to be established and in use, as step 205 indicates.Therefore described PS connection uses all spendable transfer resources.If request CS in step 206 to connect, then described call instance 201 controls example 203 to described QoS & DTM and sends the inspection request service primitive 207 with the identifier of the CS connection type of request, and described QoS & DTM controls example 203 and again determines that the GBR allowed is the difference between MSMax and CSConn in a step 208.In order to check whether described PS with CS can use transfer resource (MSMax) both being connected jointly, when its GBR to be reduced to the GBR of the MSMax-CSConn of permission by MSMax, described QoS & DTM controls example 203 and determines PS connects whether still meet its qos requirement.For this purpose, described QoS & DTM controls example 203 and sends the GBR with the described permission of context configuring request 209 to GPRS carrying 202, and it comprises the described context ID that described PS connects further.As the context configuration notification 210 of parameter, configuring request 209 is transmitted to described client-side 200 by the GBR with permission.Client checks and the qos requirement whether GBR of described permission meets described PS and connect finds that this is the real and initial Context Modification Procedure comprising the step 212-216 of context activation Procedure corresponding to Fig. 1.In order to request be set up the success notification of CS calling to call instance 201, described GPRS carrying 202 must control to described QoS & DTM the context configuration response 217 of GBR as parameter that example 203 transmission has described mandate further, described QoS & DTM controls example 203 and then sends the inspection respond services primitive with parameter OK to described call instance 201, and the CS in DTM pattern connects and can set up in step 219.
In this example, when CS establishment of connection is requested, therefore the PS connection of having set up is reconfigured.When CS connection and PS Connection Sharing transfer resource, before described CS establishment of connection, in step 208 is with 211, check whether the qos requirement that described PS is connected can be guaranteed, and the initial control being connected the use of the transfer resource used by described PS in the step 212.
Fig. 3 describes the message sequence chart according to method of the present invention, wherein when dual transfer mode (DTM) become can utilize time, the PS of foundation is connected and downgrades to be conducive to circuit switching and connect.
Identical substantially with Fig. 2 of the setting of Fig. 3.Use the PS of all available transfer resource MSMax to connect to set up.During described PS connection establishment, travelling carriage (client) with do not support that the community of DTM is associated, making to have transfer resource, to be connected the common future used possible DTM pattern by PS with CS be impossible.
But according to the example of Fig. 3, travelling carriage moves in the community supporting DTM now, indicated by step 300.Call instance 201 becomes and knows this situation and send DTM availability instruction 302 to described QoS & DTM control example 203 in step 301.QoS & DTM controls the context layoutprocedure that example 203 performs the step 303-311 comprised corresponding to the context layoutprocedure 209-217 in Fig. 2 now.In brief, determine the GBR of permission, to determining whether connect its PS is that acceptable client is signaled, and, if this situation, then correspondingly change its GBR.After described context layoutprocedure, described QoS & DTM controls example 203 and inner DTM state is set to OK so that instruction is connected the following CS establishment of connection jointly existed with the PS existed be possible now.This can occur in step 313.
According to this example, connect by PS the transfer resource part used and change after PS connection establishment, but before CS connection establishment, it must not occur.Described inspection step can identify in step 303 and 305, and described rate-determining steps can be initial within step 306.Note, contrast with the gprs system of use exemplary in the embodiment of Fig. 3, in 3G system, as such as universal mobile telecommunications system (UMTS), the parallel use supporting PS with CS to be connected in each community, makes can not need when entering community to detect whether DTM is available.
Fig. 4 describes the message sequence chart according to method of the present invention, wherein when circuit switching connects by actual request, is connected by the PS of foundation and stops to connect to be conducive to described circuit switching.
Identical substantially with Fig. 2 of setting in Fig. 4 and step 205-210, namely, use the PS of all available transfer resource MSMax to connect to set up, CS connects requested, and described QoS & DTM controls example 203 to have started context layoutprocedure to check when described CS connection establishment, and whether the qos requirement that described PS connects still can be met.
But, when the minimum acceptable qos requirement be connected with PS in step 405 by the GBR of permission compares, judge that at client-side 200 place PS connection can not maintain the QoS allowing the application using described PS to connect suitably to work, PS is connected and must be stopped with the application run thereon.By message 406 termination of this application signaled to network 204 and confirmed in step 407 by network.Then in step 408 and 409 PS connect terminate in client 200 and GPRS carry 202 between signal.After PS connects termination, GPRS carrying 202 can respond the context configuring request 209 that QoS & DTM controls example 203 in step 410, and then QoS & DTM controls example 203 responds call instance 201 in step 411 inspection request 207 with OK, makes CS connect and can set up in step 412 now.
When CS connection stops, PS is connected and can be recovered by client/GPRS carrying signalling in step 413 and 414, and being applied in step 415 and 416 of running in this PS connection continues by signaling between client and network.
According to this example, after PS connection establishment, judge that described PS connects be connected cannot jointly use available transfer resource with the CS of request, and described PS connection is stopped.Inspection can be identified and perform in step 208 and 405, and the use of controls transfer resource is initial in a step 408.
Fig. 5 describes the message sequence chart according to method of the present invention, wherein when circuit switching connects by actual requirement, is connected by the PS Connection Release of foundation to be conducive to circuit switching.
The setting of Fig. 5, and step 205-210 and 405 is equal to Fig. 4, that is, exist use that the PS of the foundation of all available transfer resources connects, client that the GBR of CS connection request and permission does not meet the qos requirement that PS connects judges.Contrast with the example of Fig. 4, PS connection is deactivated now instead of stops and recover after a while.Deexcitation occurs and carries between 203 and network 204 at GPRS in step 501 and 502 to occur in step 500 and 503 between client 200 and GPRS carry 203.In step 504, set forth the deexcitation (or release) of application, in step 505, terminate and control the initial context layoutprocedure of example 203 step 209 by QoS & DTM, and in step 506, finally responded with OK by the inspection request that call instance 201 is initial in step 207, CS is connected can be set up in step 507.
According to this example, after PS connection establishment, judge that described PS connects be connected cannot jointly use available transfer resource with the CS of request, and described PS connection is deactivated.Inspection can be identified as performing in step 208 and 405, and the control of the use of transfer resource is initial in step 500.
Fig. 6 describes the message sequence chart according to method of the present invention, and the PS connection of wherein setting up is configured by network and makes the DTM of the guaranteed QoS of tool be possible.
In the arranging of Fig. 6, describe the Service Access Point of travelling carriage 600, base station sub-system (BSS) 601, Serving GPRS Support Node (SGSN) 602 and Gateway GPRS Support Node (GGSN) 603.
The gprs system with DTM ability is in idle condition 604 at first.In step 605, PS data cube computation (PDP Context) is set up with the process being similar to Fig. 1, that is, context creation process and Context Modification Procedure occur, but does not relate to the step that QoS & DTM controls example.In step 606, the activation with the PDP Context of new GBR is asked from SGSN 602, and SGSN602 sends to GGSN 603 and creates PDP Context request 607.In GGSN 603, when the mandate of the new GBR of decision request, consider transfer resource (the multiple-grooved rank of such as travelling carriage DTM ability and travelling carriage), until it is by travelling carriage characterization.In step 608, GBR is authorized to connect to the described PS of the seamless foundation allowing following possible CS to connect.The GBR of this mandate signals and signals between SGSN 602 and BSS 601 in step 610 in step 609 between GGSN 603 and SGSN 602.The confirmation of the GBR then authorized by BSS 601 in step 611 signal back to SGSN 602 and in step 612 signal back can judge that the qos requirement whether GBR of this mandate is connected with the PS asked by described travelling carriage 600 is mated to GGSN603, BSS 601.Then GGSN 603 sends to SGSN 602 and creates PDP Context response 613, and SGSN 602 postbacks to the travelling carriage 600 of activation of request PDP Context and send the GBR of the mandate with confirmation to accept 614 as the activation PDP Context of parameter.Finally, the transfer of data in described PS connection starts in step 615, and seamless foundation in the CS not being connected with described PS the transfer resource conflict used future of connecting is possible.
According to the example of Fig. 6, when CS connection is additionally set up, check qos requirement that described PS connects whether still guaranteed step can identify in step 608 and between step 610 and 611, and the step of the use of the described transfer resource of described control can be initial in step 608 and 613.
Fig. 7 describes the logical block required for the DTM implementing the guaranteed QoS of tool in travelling carriage embedded software environment according to the present invention.
Three client 700-1..700-3 can ask PS to connect from carrying 701.When PS connects by (step 108 referring in such as Fig. 1) during one of described client 700-1..700-3 actual request, carrying 701 is consulted QoS & DTM and is controlled example 702 (step 109 referring in Fig. 1), QoS & DTM controls example 702 and consults Resource Monitor 703 successively, and Resource Monitor 703 monitors the hardware capabilities (step 110 referring in Fig. 1) of the travelling carriage be placed in one by each client 700-1..700-3 and monitors the connection provided by described carrying 701.Hardware capabilities can define during R & D, and wherein the behavior of disposal ability and travelling carriage is defined as hardware profile.
Therefore provide two source monitors 703 the use resource of existence and hardware capabilities are compared, and collect resource key parameter from carrying 701, the packet size of the number of the time slot such as used, the encoding scheme of use, use and the current resource status based on key parameter definition platform.
Each when asking some resources from carrying 701, the service that the resource of request can use QoS & DTM to control example 702 checks.In the example of Fig. 1-6, this such as can cause " GBR of permission " (step 110 referring in Fig. 1) determined by described QoS & DTM control example.QoS & DTM controls the record that example 702 can keep the use resource existed, and connects be connected with the PS that may activate simultaneously, because it is possible for having DTM in GPRS/EGPRS travelling carriage as CS.
Such as, transmit the new PDP of QoS by one of client 700-1..700-3 request if there is CS connection activation and have stream, then QoS & DTM control example 702 checks whether travelling carriage can process the service of request.If still there is enough available resources, then request can continue and send suitable signaling to network, as explanation in Fig. 1-6.
QoS & DTM control example 702 also can provide the service of request to carrying 701 can not by the response of travelling carriage process, in this case, the qos parameter of request can be downgraded and suitable parameter can be used ask the service of automatic network.Such as, the multiple-grooved rank for DTM can change based on controlling the information of example 702 from QoS & DTM.
Fig. 8 is the flow chart according to one of method of the present invention possible embodiment.In the situation that this flow chart relates to, PS connection has been set up and has used certain part (step 800) of available transfer resource.In step 801, CS connection request is received.According to the present invention, then determine by described PS, transfer resource connects whether the common use be connected with described CS is possible in step 802.If it is determined that be unsuccessfully, then check the priority (step 803) whether the priority that PS connects connects lower than CS.If not this situation, then block CS in step 804 simply and connect.If the priority that the priority that CS connects connects higher than PS, then determine whether the qos requirement that PS connects can reduce in step 805, make the common use of transfer resource become possibility.If not this situation, then release or termination PS connect in step 806, and set up CS connection.If not this situation, then the QoS that PS connects is reduced, and change the transfer resource part that (minimizing) distributes to described PS connection in step 808.Finally, set up described CS in step 809 to connect.If determine that transfer resource is possible by the common use that two connect in step 802, then check whether transfer resource part (the common use that the qos requirement that then PS connects allows transfer resource to connect by two that must reduce and distribute to described PS and connect in step 810, but the transfer resource part larger than actual requirement is distributed to PS to connect, first this state must be changed).If this situation, then this part actually reduces in step 808, and sets up CS connection in step 809.If not this situation, then directly can set up CS in step 809 and connect.
The present invention is described above by the mode of preferred embodiment.It should be noted that to there is optional mode and change, this is obvious for those skilled in the art and can be implemented and depart from the scope and spirit of appended claims.Especially, check that step can be initial by the example in travelling carriage or in network.The common use of the mixing that transfer resource is just connected by PS or just connected by CS or is connected by PS with CS is possible, and can exist and connect jointly use transfer resource or at least ask them more than two.Such as, two PS connect and can set up, and when setting up further PS or CS and connect, the use of its transfer resource can jointly or individually be consulted again.According to the present invention, preferably may can observe the qos requirement of the connection with lower priority in described inspection step, such as, when checking that PS with CS observes the qos requirement of PS connection when being connected and whether jointly can using transfer resource.But, also qos requirement or the demand of the transfer resource of the connection with higher priority can be observed, or two qos requirements connected can be observed in described inspection step, if if particularly not defining priority or connecting is same type, such as two or more PS connects.First consider that the qos requirement of the connection of setting up can be preferred alternatively, it can be the first or second connection.
Claims (35)
1. a method, comprising:
The first connection is set up in response to request, the response that instruction is used for the transfer resource of the permission that first between described first instance and second instance connects is received at first instance place, described first instance is clients entities, and before the second connection between described first instance and described second instance is requested, transfer resource at least in part based on the permission of first instance requires with described first instance the difference being used for described second resource be connected, and determines the transfer resource of described permission;
Control by described first use at least partially of connection to the transfer resource of described permission at first instance place, described control comprise when to determine after a while described permission transfer resource by described first connect to be connected with described second jointly use time, described first quality of service requirement connected no longer can be guaranteed, then select, stop or discharge described first and connect.
2. method according to claim 1,
When described second connection has the priority higher than the first connection, perform described termination or discharge described first connection.
3. method according to claim 1, the use at least partially of wherein said control to the transfer resource of described permission comprises:
When described permission transfer resource by described first connect to be connected with described second jointly use time, if determine that the described first quality of service requirement connected no longer can be guaranteed, then reduce the described first quality of service requirement connected, and change the part that can connect the transfer resource of the described permission used by described first.
4. method according to claim 1, the use at least partially of wherein said control to the transfer resource of described permission comprises:
When described permission transfer resource by described first connect to be connected with described second jointly use time, if determine that the described first quality of service requirement connected can be guaranteed, then change the part that can connect the transfer resource of the described permission used by described first.
5. method according to claim 1, wherein said control performed before described first and second connection establishments.
6. method according to claim 1, wherein said control described first connect set up after and performed before described second connection establishment.
7. method according to claim 1, the transfer resource of wherein said permission represents the characteristic of data transmission capabilities of described first and/or second instance.
8. method according to claim 1, comprise further when the described permission being used for the transmission between described first instance and described second instance transfer resource by described first connect to be connected with described second jointly use time, check whether the described first quality of service requirement connected still can be guaranteed, and wherein said inspection performs by controlling example with described first and/or the interactional transfer resource of second instance at least in part.
9. method according to claim 1, the transfer resource of wherein said permission is the hardware capabilities of described first or second instance, and
Wherein said method comprises the described hardware capabilities of inspection further, with determine when the described hardware capabilities being used for the described transmission between described first instance and described second instance by described first connect to be connected with described second jointly use time, whether the described quality of service requirement of described first connection can be guaranteed.
10. method according to claim 1, wherein said entity is included in a mobile station, and in the network of the particularly wireless communication system of 2G or 3G mobile radio system.
11. methods according to claim 10, wherein said first connects and second to connect be that packet switching between described travelling carriage and the described entity in described network and/or circuit switching are connected.
12. methods according to claim 10, the wherein said first described qos requirement connected is minimum bit rate.
13. methods according to claim 10, wherein said wireless communication system can operate dual transfer mode DTM, described dual transfer mode DTM comprises the packet switching connected as described first and connects, particularly according to the connection of the GPRS EGPRS of general packet radio service gprs or enhancing, and connect as the described second circuit switching connected, and
Wherein said method comprise further determine when described transfer resource by described packet switching to be connected with described circuit switching jointly use time, whether the bit rate requirement that described packet switching connects can be guaranteed.
14. methods according to claim 13,
Wherein said packet switching is connected with circuit switching to be provided by radio bearer, and
Wherein said transfer resource controls example by radio bearer described in the notice of availability of the transfer resource of described permission.
15. methods according to claim 14, wherein said transfer resource controls example and monitors the connection provided by described radio bearer, and
Based on the hardware profile of the connection monitored described at least one and described travelling carriage, determine the availability of the transfer resource of described permission.
16. methods according to claim 1, wherein said by identical carrying provide described first connect be connected with described second.
17. 1 kinds of computer-readable mediums comprising computer program, described computer program has instruction, and described instruction is used for impelling processor:
The first connection is set up in response to request, the response that instruction is used for the transfer resource of the permission that first between described first instance and second instance connects is received at first instance place, described first instance is clients entities, and before the second connection between described first instance and described second instance is requested, transfer resource at least in part based on the permission of first instance requires with described first instance the difference being used for described second resource be connected, and determines the transfer resource of described permission;
Control by described first use at least partially of connection to the transfer resource of described permission at first instance place, described control comprise when to determine after a while described permission transfer resource by described first connect to be connected with described second jointly use time, described first quality of service requirement connected no longer can be guaranteed, then select, stop or discharge described first and connect.
Equipment in 18. 1 kinds of travelling carriages, described equipment comprises:
Receiver, be configured to set up the first connection in response to request, the response that instruction is used for the transfer resource of the permission that first between described first instance and second instance connects is received at first instance place, described first instance is clients entities, and before the second connection between described first instance and described second instance is requested, transfer resource at least in part based on the permission of first instance requires with described first instance the difference being used for described second resource be connected, and determines the transfer resource of described permission; And
Controller, be configured to control by described first use at least partially of connection to the transfer resource of described permission at least in part, described control comprise when to determine after a while described permission transfer resource by described first connect to be connected with described second jointly use time, described first quality of service requirement connected no longer can be guaranteed, then select, stop or discharge described first and connect.
19. equipment according to claim 18, wherein said equipment is the travelling carriage in wireless communication system, and wherein said second instance is included in the network of described wireless communication system.
20. equipment according to claim 18, the transfer resource of wherein said permission represents the characteristic of data transmission capabilities of described first and/or second instance.
21. equipment according to claim 18, wherein said processor is further configured to and carries out alternately with described first instance.
22. equipment according to claim 18, the transfer resource of wherein said permission is the hardware capabilities of described first or second instance, and
Wherein said processor is configured to check described hardware capabilities further, with determine when the described hardware capabilities being used for the described transmission between described first instance and described second instance by described first connect to be connected with described second jointly use time, whether the described quality of service requirement of described first connection can be guaranteed.
23. equipment according to claim 19, wherein said wireless communication system can operate dual transfer mode DTM, described dual transfer mode DTM comprises the packet switching connected as described first and connects, particularly according to the connection of the GPRS EGPRS of general packet radio service gprs or enhancing, and connect as the described second circuit switching connected, and
Wherein said processor be configured to further to determine when described transfer resource by described packet switching to be connected with described circuit switching jointly use time, whether the bit rate requirement that described packet switching connects can be guaranteed.
24. equipment according to claim 23, wherein said packet switching is connected with circuit switching to be provided by radio bearer, and
Wherein said processor is configured to radio bearer described in the notice of availability of the transfer resource of described permission.
25. equipment according to claim 18, wherein said processor is configured to monitor the connection provided by described radio bearer, and determine the availability of the transfer resource of described permission, wherein saidly to determine at least based on the connection of described supervision and the hardware profile of described first instance.
26. equipment according to claim 18, wherein said equipment is the network element in wireless communication system, and wherein said first instance is included in the travelling carriage of described wireless communication system and wherein said second instance is included in described network element.
27. equipment according to claim 18, when described second connection has the priority higher than the first connection, perform described termination or discharge described first connection.
28. equipment according to claim 18, wherein said controller is configured to pass through, when described permission transfer resource by described first connect to be connected with described second jointly use time, if determine that the described first quality of service requirement connected no longer can be guaranteed, then reduce the described first quality of service requirement connected, and change the part that can connect the transfer resource of the described permission used by described first, control the use at least partially of the transfer resource to described permission.
29. equipment according to claim 18, wherein said controller is configured to pass through,
When described permission transfer resource by described first connect to be connected with described second jointly use time, if determine that the described first quality of service requirement connected can be guaranteed, then change the part that can connect the transfer resource of the described permission used by described first, control the use at least partially of the transfer resource to described permission.
30. equipment according to claim 18, wherein said processor and described controller are configured to perform described control before described first and second connection establishments.
31. equipment according to claim 18, wherein said processor and described controller be configured to described first be connected set up after and before described second connection establishment, perform described control.
32. equipment according to claim 19, wherein said first connects and second to connect be that packet switching between described travelling carriage and the described entity in described network and/or circuit switching are connected.
33. equipment according to claim 19, the wherein said first described quality of service requirement connected is minimum bit rate.
34. equipment according to claim 18, wherein said by identical carrying provide described first connect be connected with described second.
Equipment in 35. 1 kinds of travelling carriages, described equipment comprises:
For setting up the first connection in response to request, the response that instruction is used for the transfer resource of the permission that first between described first instance and second instance connects is received at first instance place, described first instance is clients entities, and before the second connection between described first instance and described second instance is requested, transfer resource at least in part based on the permission of first instance requires with described first instance the difference being used for described second resource be connected, and determines the device of the transfer resource of described permission; And
For controlling by described first use at least partially of connection to the transfer resource of described permission at least in part, described control comprise when to determine after a while described permission transfer resource by described first connect to be connected with described second jointly use time, described first quality of service requirement connected no longer can be guaranteed, then select, stop or discharge the described first device connected.
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