CN101098545A - Mobile station system - Google Patents
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- CN101098545A CN101098545A CNA2006100904533A CN200610090453A CN101098545A CN 101098545 A CN101098545 A CN 101098545A CN A2006100904533 A CNA2006100904533 A CN A2006100904533A CN 200610090453 A CN200610090453 A CN 200610090453A CN 101098545 A CN101098545 A CN 101098545A
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Abstract
The invention discloses a mobile state system, comprising a voice data judging module for judging if provides voice data for circuit conversion or not, a mute description frame judging module for judging if needs mute description frame, and a group switch data emission module for emitting related group switch data via a service signal channel when voice data of circuit conversion is not provided and mute description frame is not needed. The inventive system can realize synchronous conversion of circuit switch voice data and group switch data.
Description
Technical field
The present invention relates to a kind of communication system, relate in particular to a kind of mobile station system, be used for circuit-switched speech data and exchange simultaneously with the data of dividing into groups to switch.
Background technology
Global system for mobile communications (GSM) GPRS (GPRS) allows the user to realize transceive data in the mode of end-to-end packet switching, and need not to use the Internet resources of circuit-switched manner.When transfer of data had following feature, GPRS was more effective to the utilization of wireless network resource: 1. based on packet mode; 2. intermittence and aperiodic; 3. the small data quantity transmission that may frequently take place for example is less than 500 bytes; 4. not frequent big data quantity transmission takes place, for example more than the hundreds of thousands byte.The user uses can comprise internet browsing, Email or the like.
In the GSM of ETSI European Telecommunications Standards Institute (ETSI) standard GPRS mobile radio station is defined as a kind of " mobile station classes ".Mandatory rule when mobile station classes has stipulated that mobile radio station runs on group mode, circuit switch mode or moves these two kinds of patterns simultaneously.For example, a kind of this type of mobile station classes is the category-A mobile radio station, and it is supported in simultaneously, and synchronous in circuit-switched speech business and the data service that grouping is switched is connected, monitoring, activate, call and Business Stream; And the category-B mobile radio station of definition, it only is supported in synchronous in the data service of circuit-switched speech business and grouping switching and is connected, monitors and activate, and can only be used for to mutual exclusion wherein a kind of business and call with Business Stream; At last, the C class mobile radio station of definition is only supported asynchronous connection, and promptly connecting is mutual exclusion, can only be a kind of in circuit-switched speech business or the grouping data service of switching.
In some cases, mobile station classes can be specified or change by the user, and this will be subjected to the restriction such as conditions such as Default Value and device-restrictive.For example, certain user uses can send instruction, changes the mobile radio station classification of current user equipment.Because the user can implement control to the mobile station classes identity, so these mobile radio station classifications are regarded as " effectively " class.
When being provided, the category-A mobile radio station has a problem, when the data service of the process circuit speech business of switching and the switching of dividing into groups, need two receivers and two transmitters, need possess synthesizer/duplexer, general subscriber identity module (SIM) card, simultaneously, look user's application numbers that expectation embeds, may also need the additional call processor.This just requires mobile radio station production firm is so a kind of brand-new structure of equipment development, and this will cause the increase of equipment cost.
As shown in Figure 1, in known fixed allocation GPRS/EDGE media interviews control operation, signal flow is: the time slot allocation bitmap is sent to physical layer 100 from network; Control information is inserted to it in address of MAC controller (MAC) 110 identification, Radio Link Controller (RLC) 120; Radio resource layer (RR) 130 sends a bitmap of representing the delivery time to MAC controller 110, transmits the GPRS/EDGE data by MAC controller 110 to physical layer 100.On the other hand, in existing dynamic assignment GPRS/EDGE media interviews control operation, signal flow is: the control grouping information is sent to the physical layer 140 of a mobile radio station, by MAC controller 150 decoding and identification address or Uplink State Flags (USF), give the authority that mobile radio station transmits tdma frame, make the GPRS/EDGE data be transferred into physical layer 140.
Professional implementation method provides some technical problems, and in addition, professional also have very big influence to mobile radio station and signal of base station device, the sort ofly wishes that the attempt of the category-A service to mobile stations of design simplification has been proved to be invalid.For example, if there has been a dedicated channel to be used for transmitting voice information in normal way, existing GPRS media access control (MAC) method applicable is used for another dedicated channel, this mode will allow mobile radio station to join on both direction, that is: when circuit-switched audio call may be handed over to another GSM unit, still in original GSM unit, perhaps be forced to choose another one does not have in the resident different units of circuit-switched audio call the transfer of data that grouping is switched.This just requires the synchronous reception of mobile radio station support to two-way RF (radio frequency, Radio Frequency) channel, this head and shoulders above the scope of simplification simultaneous voice/data service.Therefore, need to propose the method for simplifying that a kind of communication system of carrying out voice and exchanges data is simultaneously carried out circuit-switched voice and the exchange of GPRS data sync.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of mobile station system, to realize that circuit switches speech data and the grouping switch data exchanges simultaneously.
In order to solve the problems of the technologies described above, the invention provides a kind of mobile station system, be used for circuit-switched speech data and exchange simultaneously with the data of dividing into groups to switch, comprising:
The speech data determination module is used to judge whether to provide circuit-switched speech data;
The silence description frames determination module is used to need to judge whether silence description frames;
Grouping switch data transmitter module is used for circuit-switched speech data not being provided and not needing under the situation of silence description frames, by the grouping switch data of traffic channel transmission association.
Wherein, described speech data determination module, if judging to draw provides circuit-switched speech data, then circuit-switched speech data is by being set to be exclusively used in the communication channel emission of voice operating; If do not provide, then to need judge whether silence description frames by the silence description frames determination module.
Wherein, described silence description frames determination module is if judging to draw needs silence description frames, then by special-purpose traffic channel transmission silence description frames; If do not need, then by the related grouping switch data of grouping switch data transmitter module emission.
Wherein, further comprise: emission authority determination module is used to judge whether authorized emission grouping switch data on related time slot.
Wherein, described emission authority determination module is authorized when judgement draws, then emission grouping switch data on the time slot of association.
Wherein, described related time slot comprises: voice time slot and data slot, described data slot each other and and described voice time slot between tight association.
System of the present invention has realized that circuit switches speech data and the grouping switch data exchanges simultaneously.
Description of drawings
Fig. 1 is the schematic diagram of fixing and dynamic assignment of the GPRS/EDGE media interviews control operation of prior art;
Fig. 2 is the theory diagram according to the described a kind of mobile station system of the embodiment of the invention;
Fig. 3 is according to the annexation schematic diagram between described mobile station system of the embodiment of the invention and the base station sub-system;
Fig. 4 is according to the transmission channel schematic diagram between described mobile station system of the embodiment of the invention and the base station sub-system;
Fig. 5 is the structural representation according to the described a kind of mobile station system of the embodiment of the invention;
Fig. 6 is according to the described uplink signal schematic diagram of the embodiment of the invention;
Fig. 7 is according to the described down link signal schematic diagram of the embodiment of the invention;
Fig. 8 is according to the described time slot grouping of embodiment of the invention schematic diagram;
Fig. 9 is the workflow diagram according to the described a kind of mobile station system of the embodiment of the invention.
Embodiment
The present invention is the simple version of defined category-A GPRS/EDGE mobile radio station, under the discontinuous transmission and receiving mode of private communication channel, the transmission and the reception of GPRS/EDGE data are merged, and include a kind of like this mechanism, the voice time slot can combine with one or more GPRS/EDGE data slots, and the GPRS/EDGE data can flow into or flow out packet-switched channel.
With reference to figure 2, the theory diagram for the described a kind of mobile station system of the embodiment of the invention specifically comprises: the speech data determination module is used to judge whether to provide circuit-switched speech data; The silence description frames determination module is used to need to judge whether silence description frames; Grouping switch data transmitter module is used for circuit-switched speech data not being provided and not needing under the situation of silence description frames, by the grouping switch data of traffic channel transmission association.
As shown in Figure 3, be the annexation schematic diagram between described mobile station system of the embodiment of the invention and the base station sub-system, mobile station system is by speech data that communication channel (TCH) receives or transmitting line switches that links to each other with base station sub-system and the data of dividing into groups to switch, when data are transmitted to mobile radio station by base station sub-system, be commonly referred to " down link " transmission; And data are sent to base station sub-system by mobile radio station, then are commonly called " up link " transmission.
With reference to figure 3 and Fig. 4, when between mobile station system and base station sub-system, carrying out discontinuous transmission (DTX) operation, when not transmitting common voice or signaling frame 310, except silence descriptor (SID) frame 320 periodic transmission that send in some tdma frame of up link, mobile radio station stops the emission to be undertaken by communication channel (TCH) and base station sub-system.Therefore, make it to adapt to the feature of DTX as long as improve the channel access method, the frame period 330 between two SID frames 320 just can be used to transmit the GPRS/EDGE data.Similarly, in discontinuous reception (DRX) operation, when not having voice or signaling frame 310, mobile radio station receives SID frame 320 periodically, therefore, in common circuit switched GSM voice, signaling or the not received interval of SID frame, mobile radio station can receive the GPRS/EDGE data.
With reference to figure 5, be the structural representation of the described a kind of mobile station system of the embodiment of the invention, specifically describe as follows:
The structure of each mobile radio station all comprises a vocoder, and effect is that compression is introduced the speech data of vocoder by receiving the control logic assembly, receives the control logic assembly and resides at physical layer.Physical layer provides the interface between radio frequency hardware and call processing device (not shown), comprises that physical data receives and the ordering that sends, receiver gain control, transmitter power control, signal level measuring or the like.
In addition, the GPRS/EDGE Frame is received the control logic assembly and introduces MAC controller (MAC) layer.MAC controller comprises mainly that to the physical layer transmission or from wherein receiving the information based on packet mode the notice mobile radio station has the logic of sending permission at given time.MAC controller also be used for discerning the expression downlink side to the message of mobile radio station address.
Described by the embodiment of the invention, be positioned at physical layer and also have a transmission controller component, its effect is to analyze the uplink data that sends during discontinuous transmission DTX pattern, and under streaming MAC mode, authorize the MAC assembly to send data, this will be introduced below.In addition, existing GPRs/EDGE MAC (as Fig. 1) can improve according to the present invention, increasing the MAC pattern that flows, and then can be given an order by network.
Radio Resource (RR) layer receives signaling message from physical layer, and the distribution control logic assembly that is positioned at radio resource layer is distributed in radio resource layer, the physical layer at mobile station system, and between the Radio Link Controller.Distributing the effect of control logic assembly is assignment logic, and corresponding to the simplification plate category-A GPRS/EDGE mobile radio station of the definition according to the present invention, this is an operation for the logic of a distribution notice mobile radio station, can also notify the distribution of the relevant any time slot of mobile radio station.Except originating from by the physical layer transmission the information of network, radio resource layer is also controlled the signaling of the attached network-oriented with wireless messages of mobile radio station, i.e. time slot distribution, Packet Data Channel configuration/dismounting, RF channel allocation, or the like.Radio Link Controller relates generally to the error correction of radio layer, promptly absorbs the periodic error that is caused by fading channel, and handles some feature of configuration of GPRS/EDGE transfer of data and dismounting.The assignment information of distributing control logic combinatory analysis and relating to parameters, these parameters are parameters of the simplification version category-A GPRS/EDGE mobile radio station of proposition according to the present invention, and according to the present invention, physical layer can also be set to launch and/or to receive one or more time slots, hereinafter will be to this concrete introduction.This comprises the following method of salary distribution: voice time slot and a data time slot combination, and perhaps with combination according to a plurality of data slots of combining closely of mobile radio station.If one or more data slots are associated with voice/alternating data timeslot, network will be issued the MAC pattern of each time slot, and how the notice mobile radio station determines when it has the emission authority.
Existing decode operation in the channel decoder sends relevant information to the received frame discriminator, and the existing decode operation of raw decoded data from channel decoder transfers to the reception control logic assembly in the physical layer.Received frame identifier assembly in the channel decoder is distinguished speech frame and GPRS/EDGE Frame, and provides each decoded frame to physical layer.
According to present embodiment, used a kind of additional GPRS media interviews control (MAC) pattern, under this pattern, the GPRS data flow into or flow out the null interface of circuit-switched manner.This method is used for the inflow of GPRS/EDGE data or flows out packet-switched channel, and data just can during send DTX and receive DRX aperiodic aperiodic, be switched transmission or reception on the voice time slot at identical circuit as circuit-switched information.Although the MAC controller layer works in circuit-switched manner, the packet-based essence of the data on the MAC layer 220 still is retained, i.e. its addressing, Radio Link control (RLC) agreement, logic link control (LLC) etc. are all constant.
Importantly, " flowing " MAC pattern has been forbidden packet-based GPRS MAC performance, and mobile radio station obtains notice and obtains sending permission from network in this manner.This be because, according to the operation of present embodiment, under the dynamic slot allocation model, needn't monitor the Uplink State Flag (USF) that authorize to send, under fixed allocation mode, also needn't monitor the transmission bitmap.And according to the present invention, the authority that mobile radio station sends is the time validity decision that is distributed and sent data under the DTX pattern by uplink time slot.
In case the MAC controller layer is set to flow pattern, it just learns sending permission from the DTX physical layer logic of up link side, rather than learns from network.At downlink side, channel decoder judges that what receive is the identification of speech frame or GPRS/E DGE Frame; Speech frame adopts common mode to handle, and the GPRS/EDGE Frame is sent to the MAC controller layer by physical layer, implements other identification of other levels, the i.e. differentiation of addressing and control/data in physical layer.The down link example has illustrated how channel decoder makes a distinction voice and Frame, and channel decoder supports raw decoded data to reach the Frame information about physical layer simultaneously.This identification can be realized by analyzing to GPRS/EDGE data and CS speech frame are provided with different signs by DSP channel decoder (Fig. 7), also the learning sequence sequence in the pulse train (burst) that can receive by analysis realizes, speech burst is different ergodic sequences with GPRS/E DGE data pulse string, have different correlation functions, therefore can be used to distinguish this two classes frame.
With reference to figure 6, be the described uplink signal schematic diagram of the embodiment of the invention.In the uplink signal flow process that the mobile MAC according to the embodiment of the invention operates, what physical layer block can be understood transmission immediately is circuit-switched voice, silence description frames or signaling frame.Physical layer block is given the MAC controller authority and is sent speech frame, signaling speech frame and the silence description frames that common line switches.As shown in Figure 7, be the down link signal schematic diagram, in the down link signal flow process that the mobile MAC according to the embodiment of the invention operates, physical layer block receives the channel data and the frame type information of original decoded from the DSP channel decoder.Physical layer block utilizes frame type information to vocoder module speech frames, sends the GPRS/EDGE Frame to MAC controller.
As shown in Figure 8, be the described time slot grouping of embodiment of the invention schematic diagram, specifically describe as follows:
Under discontinuous transmission DTX and discontinuous reception DRX pattern, between normal speech, signaling and silence description frames, voice that the control of flowing is switched and GPRS/EDGE data are all in time slot 1.In the whole life that the simplification version category-A GPRS/EDGE mobile radio station of the definition according to the present invention is operated, additional time slot is tight association each other, and the GPRS/EDGE data that are transmitted are positioned at time slot 2 and 3.The present invention may use the arbitrary number of eight time slots, is not limited to use three time slots.
In aforesaid example, circuit-switched voice and GPRS/EDGE data flow are transmitted in the time slot 1 of each tdma frame.In addition, two time slots and time slot 1 tight association are arranged in addition, i.e. time slot in the example 2 and time slot 3.For given unit, in the whole life of the simplification version category-A GPRS/EDGE mobile radio station of definition operation, the time slot of tight association is present in the situation when all distributed time slot are logic association in the tdma frame according to the present invention.Circuit-switched data call has priority, is preferentially transferred, and the data slot of any association may also may not followed after circuit-switched voice time slot.
Under discontinuous transmission and reception DTX/DRX pattern, the GPRS/EDGE data send the related time slot of one or more and effective circuit-switched voice time slot, when not having voice, ordinary signaling or silence description frames emission, the combination in any that the GPRS/EDGE data send is supported in the operation of the simplification version category-A GPRS/EDGE mobile radio station of definition according to the present invention.Therefore, when discontinuous transmission and receive the DTX/DRX pattern when invalid, the mobile radio station for having used according to the simplification version category-A GPRS/EDGE mobile radio station operation of definition of the present invention may only utilize to be used for GPRS/EDGE data tight association data slot.According to the present invention, also there is such possibility, in discontinuous transmission and receive the DTX/DRX pattern between dynamic stage, only the voice time slot is used the method for swap data, and need not the independently data slot of tight association is used this method.
Although time slot is a logic bounded,, need not it is exclusively used in a mobile radio station for the data slot of tight association.Therefore, on the direction of down link, the address of oneself may be discerned and filter out simultaneously to different mobile radio station distribute data pieces in the base station in MAC controller MAC layer by mobile radio station.According to the present invention, mobile radio station is only measured circuit-switched time slot, descending power control may be implemented to the data slot (if any) that is closely connected in the base station, because the base station need be launched with a power level, this power level is suitable for the mobile radio station that data block is sent to.
According to the present invention, if comprise the data slot of a voice time slot and one or more tight association, mobile radio station may be used three kinds of MAC methods previously discussed, and promptly fixedly time slot allocation, dynamic slot are distributed or by any one of the mobile MAC of network control, are controlled the authority that mobile radio station sends.If use the fixing or dynamic time slot allocating method of ETSI regulation, will allow to save uplink resource, because related data slot can be used by other mobile radio station.This situation with the simplification version category-A GPRS/EDGE mobile radio station of definition according to the present invention is different, The latter the transmission and the reception of the circuit-switched data between voice, signaling and SID information, in this case, for the uplink time slot shared with speech business, mobile radio station must use the MAC method that flows.
For the operation of the simplification version category-A GPRS/EDGE mobile radio station that enters or withdraw from definition,, need to use existing GSM GPRS/EDGE " the unit selection/reselection of network control " mechanism according to the present invention.It will provide the straightforward procedure that enters or withdraw from this pattern, and additional signaling information that need not be too many, and, as the mechanism of regulating this incident possibility among the GPRS/EDGE, it to the minimum that influences of the simultaneous any transmission course of gravity treatment.This comprises following process: the regulation transmitting terminal keeps last unacknowledged logic link control (LLC) frame; If gravity treatment has taken place in transmission course, transmitting terminal is from last unacknowledged LLC frame, and receiving terminal is removed the receive window of gravity treatment, guarantees not lose the LLC layer and with the data on upper strata.As a result, if the operation of the simplification version category-A GPRS/EDGE mobile radio station of gravity treatment definition according to the present invention, will produce diverse time slot or channel coding schemes and distribute, existing GPRS/EDGE classification will absorb the influence of gravity treatment.According to the present invention, the timeslot reconfigure message that information element is assigned to up link and downlink assignment and comprises parameter is for example according to tight association time slot allocation of the present invention.
With reference to figure 9, be the workflow diagram of the described a kind of mobile station system of the embodiment of the invention, detailed process is as follows:
Step 910: judge the voice time slot whether available line switches, if, enter step 920, if not, step 930 entered;
Step 920: launch circuit-switched speech data.Circuit-switched speech data is by a communication channel emission that is set to be exclusively used in voice operating.
Whether step 930: judging needs silence description frames, if, enter step 940, if not, step 950 entered.If there are not circuit-switched data, then need to judge whether silence description frames of needs.
Step 940: emission silence description frames.Traffic channel transmission silence descriptor by special use.
Step 950: the GPRS/EDGE Frame that emission is related.The GPRS/EDGE Frame of the association of traffic channel transmission by special use.
Step 960: judge whether the authority emission is arranged, if, enter step 970, if not, then turn back to step 910.
Step 970: on related time slot, launch data.
According to the present invention, defined simplification version category-A GPRS/EDGE mobile radio station allows operator to provide simultaneous voice and GPRS/EDGE data service on single receiver/transmitter apparatus having of relative low price.
Claims (6)
1. a mobile station system is used for circuit-switched speech data and exchanges simultaneously with the data of dividing into groups to switch, and it is characterized in that, comprising:
The speech data determination module is used to judge whether to provide circuit-switched speech data;
The silence description frames determination module is used to need to judge whether silence description frames;
Grouping switch data transmitter module is used for circuit-switched speech data not being provided and not needing under the situation of silence description frames, by the grouping switch data of traffic channel transmission association.
2. the system as claimed in claim 1 is characterized in that, described speech data determination module, if judging to draw provides circuit-switched speech data, then circuit-switched speech data is by being set to be exclusively used in the communication channel emission of voice operating; If do not provide, then to need judge whether silence description frames by the silence description frames determination module.
3. as claim 1 and 2 described systems, it is characterized in that described silence description frames determination module is if judging to draw needs silence description frames, then by special-purpose traffic channel transmission silence description frames; If do not need, then by the related grouping switch data of grouping switch data transmitter module emission.
4. the system as claimed in claim 1 is characterized in that, further comprises: emission authority determination module is used to judge whether authorized emission grouping switch data on related time slot.
5. system as claimed in claim 4 is characterized in that, described emission authority determination module is authorized when judgement draws, then emission grouping switch data on the time slot of association.
6. system as claimed in claim 4 is characterized in that, described related time slot comprises: voice time slot and data slot, described data slot each other and and described voice time slot between tight association.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100904533A CN101098545A (en) | 2006-06-27 | 2006-06-27 | Mobile station system |
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2006100904533A CN101098545A (en) | 2006-06-27 | 2006-06-27 | Mobile station system |
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| CN101098545A true CN101098545A (en) | 2008-01-02 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101309487B (en) * | 2008-07-15 | 2011-05-11 | 华为技术有限公司 | Voice frame processing method, system and base station |
| CN101742573B (en) * | 2008-11-14 | 2016-03-02 | 中兴通讯股份有限公司 | Radio resource management method and system |
-
2006
- 2006-06-27 CN CNA2006100904533A patent/CN101098545A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101309487B (en) * | 2008-07-15 | 2011-05-11 | 华为技术有限公司 | Voice frame processing method, system and base station |
| CN101742573B (en) * | 2008-11-14 | 2016-03-02 | 中兴通讯股份有限公司 | Radio resource management method and system |
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