CN1305687A - Increasing traffic capacity in cellular communications system by change of traffic channel rate - Google Patents
Increasing traffic capacity in cellular communications system by change of traffic channel rate Download PDFInfo
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- CN1305687A CN1305687A CN 99807232 CN99807232A CN1305687A CN 1305687 A CN1305687 A CN 1305687A CN 99807232 CN99807232 CN 99807232 CN 99807232 A CN99807232 A CN 99807232A CN 1305687 A CN1305687 A CN 1305687A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/16—Performing reselection for specific purposes
- H04W36/22—Performing reselection for specific purposes for handling the traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W28/00—Network traffic management; Network resource management
- H04W28/16—Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
- H04W28/18—Negotiating wireless communication parameters
- H04W28/22—Negotiating communication rate
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Abstract
The present invention dynamically increases the capacity of a cellular radio communications system to meet temporary high traffic demands effectively and economically. The current traffic load at a particular base station cell area is determined (14). If the determined traffic load exceeds a threshold (16), a higher rate traffic channel over which a dual rate mobile station is communicating is handed over to a lower rate traffic channel available in that cell area (18). A list is maintained for those dual rate mobile stations currently assigned to higher rate traffic channels. Before making the handover from the higher rate traffic channel to the lower rate traffic channel, it is determined whether a handover is permitted. If so, the intra-cell handover is preferably made to a traffic channel which is currently already supporting another lower rate call. Otherwise, any available lower rate traffic channel is assigned. At call setup, if the current traffic load in the cell area exceeds the threshold, a call request involving a dual rate mobile station is assigned a lower rate traffic channel (20). If the traffic load in the cell area decreases, a call intitially set up or subsequently handed over to a lower rate channel because of high traffic load may optionally be handed over to a higher rate channel (17).
Description
Invention field
The present invention is relevant with the volume of business that improves cellular radio communication system, specifically, relates to when the extra volume of business of needs by changing the technology that Traffic Channel speed that asked or initial selected improves volume of business.
Background of invention and general introduction
In global digital mobile communication system (GSM), for speech coder has been stipulated two kinds of bit rates: full rate and half rate.Full rate is corresponding to the bit rate of 13kbits/s (kilobits/second), and half rate is corresponding to the bit rate of 6.5kbits/s.Traffic Channel in gsm system can support a full-speed voice to call out or two half-rate speech are called out.Speech coding has reduced the bit rate (high bit rate will take too many frequency spectrum) of radio interface significantly, but still can provide acceptable voice quality.Usually, what speech coding sent is the information rather than the voice itself of relevant voice, and the recipient can recover voice signal according to this information.
GSM also adopts time division multiple access (TDMA), and each radio-frequency carrier is divided into eight time slots (TS).An interior time slot of tdma frame is called a physical channel, and every pair of frequency carrier comprises eight physical channels.Voice and other information go up at the logic business channel (TCH) that is mapped as the physical slot by time channel and send.In traffic channel full rate, a user distributes use single physical channel/time slot.For the half rate situation, two travelling carriages are shared same physical channel/time slot, and two travelling carriages are used alternatingly this time slot of distribution.
The mobile telephone system operator is lived in the world of a high competition.In order to succeed, a mobile telephone system operator must provide:
Cover--can both set up calling Anywhere
Capacity--whenever can both set up calling
Quality--converse clear, without disturbance and do not interrupt.
What the present invention is directed to is capacity.
The conventional method of raising capacity is for the base station is equipped with transceiver as much as possible, and the capacity base station controller has high input.Though this is that equally distributed densely populated area is a strategy completely in business demand in time, but be the high area of business demand in some short time, as in the morning be some street on peak during the dusk, this strategy is just little reasonable.The problem of difficulty is how effectively and economically to satisfy the demand of provisional high traffic.
Therefore, main purpose of the present invention is dynamically to improve power system capacity, satisfies the demand of provisional high traffic in effective and economic mode.
Another object of the present invention is the ability that strengthens the service that the connection that needs traffic channel full rate is provided.
Have some travelling carriages to carry out radio communication now with different bit rates, and in the future such have more.For (being not that the present invention just is confined to situation about being supposed) for the purpose of the present invention is described, some travelling carriages are assumed to be and can receive and dispatch on full rate and two kinds of channels of half rate.Such travelling carriage is called and has " dual rate " ability.The dual rate travelling carriage is by an initial channel request messages or also may be in regular registration message show their dual rate ability to Cellular Networks.The channel of higher rate can use under the favourable situation of professional qualification, and half-rate channel uses during the provisional high traffic situation of appearance.
The present invention improves the capacity of cellular radio communication system in accordance with the following methods.Begin, set up the Traffic Channel of a two-forty, be used for communicating with a travelling carriage that is positioned at a specific cell.Then, determine the current communication traffic load of this sub-district.If the communication traffic load of determining surpasses a thresholding, just the high-rate service channel that a dual rate travelling carriage is used for communicating switches to another available in this sub-district low rate traffic channel.For these Traffic Channels of current activation, safeguard that is shown a current table of distributing to the high-rate service channel of those dual rate travelling carriages.
Before switching to the low rate traffic channel, determine whether to allow such switching from the high-rate service channel.If, distinguish interior switching (intra-cell handover), preferably switch to one and currently supporting on the Traffic Channel that another low rate is called out.Otherwise, distribute any available low rate traffic channel.
When call setup,, just be that a call request that relates to the dual rate travelling carriage distributes a low rate traffic channel if current communication traffic load surpasses thresholding in the sub-district.If communication traffic load reduces in the sub-district, just can be with one because the calling that begin to set up or that switched to low-rate channel afterwards of communication traffic load height switches on the high speed channel.
Brief Description Of Drawings
From following to being clear that above-mentioned and other purpose, characteristic and the advantage of invention the explanation of preferred embodiment shown in the drawings, wherein reference character and each accompanying drawing indicate identical.These accompanying drawings are not shown to scale, because what emphasize is illustration principle of the present invention.
Fig. 1 is the flow chart of illustration according to recapitulative " change channel speed " process of first embodiment of the present invention realization;
Fig. 2 is for adopting the functional-block diagram of GSM type mobile radio communicaltions system of the present invention according to the second embodiment of the present invention;
Fig. 3 is a schematic diagram of supporting the Traffic Channel of single full speed channel or two half-rate channels;
Fig. 4 is the comparatively detailed functional-block diagram of some the concrete parts shown in Fig. 2; And
Fig. 5 a and 5b are the flow chart of illustration according to the canonical process of second embodiment of the present invention realization.
Accompanying drawing describes in detail
In the following description, proposed in order to have completely to understand to the present invention that some are specifically detailed, such as certain embodiments, hardware, technology or the like, these all are indicative, rather than restrictive.Yet the personnel that are familiar with this technology are very clear, and the present invention can be applied to other different therewith execution modes of detail.For example, though a specific embodiment of the present invention is a background note with the GSM cellular radio network, those skilled in the art are appreciated that the present invention can realize in any cell phone system.Under some other situation, the detailed description of well-known method, interface, equipment and signaling technology has all been saved, in order to avoid unnecessary details makes explanation of the present invention smudgy on the contrary.
Because the application goes for any cellular telephone communication system, so present explained in general first exemplary embodiments of the present invention.This flow chart of Fig. 1 shows each step that changes channel speed routine (square frame 10).Therefore it is low weight or medium to suppose that communication traffic load begins, the Traffic Channel (square frame 12) that is the travelling carriage call setup first rate in a specific sub-district, sector or other lane place according to the channel request and the assignment process of standard.Then, determine communication traffic load (square frame 14) in this sub-district or the lane place.Enter a judgement at square frame 16, determine whether the communication traffic load of this sub-district or lane place surpasses a thresholding, determine promptly whether business demand increases temporarily.If not, carry out mobile communication (square frame 17) continuing when setting up.Yet,, just the communication of a dual rate travelling carriage that is just carrying out with first rate on a Traffic Channel is switched on another Traffic Channel and communicates (square frame 18) with the second lower speed if communication traffic load surpasses a thresholding.In addition, the new incoming call to the dual rate travelling carriage is just called out rather than the two-forty call setup as low rate, is reduced to below the thresholding up to communication traffic load.If communication traffic load significantly reduces, some callings optionally can be switched to available high-rate service channel (square frame 17) from the low rate traffic channel.
Therefore, the present invention provides the ability of the volume of business of this sub-district of interim raising by the low rate ability of utilizing some dual rate travelling carriages of working in a sub-district.Because these communicate to connect just in Serving cell and move, promptly switch in the district, so do not increase interference level, just as employing switch to that the handover of other sub-districts can occur.Another advantage of the present invention is not need additional firmware.Do not need for guaranteeing that having enough abilities to deal with provisional high traffic demand disposes some standby and common no base station transceivers.Another advantage of the present invention is that the mobile communications network operator can be by the processing of each sub-district of appropriate change communication traffic load Threshold Control Method to business demand.Suitably the thresholding of value can guarantee to have only the influence that switches to the low rate traffic channel in the minimum travelling carriage district with dual rate ability during high traffic.The present invention also selects the channel speed of concrete Traffic Channel according to current area communication traffic load situation when call setup, make to use low rate to set up the communication that relates to the dual rate travelling carriage during high traffic, further improves volume of business.
Below explanation is applied to second exemplary embodiments of the present invention based on the cellular communication system of GSM.Yet those skilled in the art are appreciated that the present invention is not limited to the cellular communication system based on GSM.
Fig. 2 with the form illustration of functional-block diagram one typically based on the cellular communication system 30 of GSM.Gateway Mobile Switching Center (GMSC) 36 is docked to other telecommunicatio networks with this cellular communications network, comprise public telephone switching network (PSTN) 32, the Internet 34, other Cellular Networks, and the communication network of the other types such as Integrated Service Digital Network.Gateway Mobile Switching Center 36 is connected with one or more mobile services switching centres (MSC) 38.Each mobile services switching centre 38 is connected with one or more base station controllers (BSC) 42.BSC handles all comprising the management of base station 44 and the operation relevant with radio of remote control, and handles the connection to travelling carriage 46 that comprises switching.Each BSC42 is connected with a plurality of base stations (BS) 44, and these base stations 44 communicate with mobile radio unit (MS) 46.
Gateway TYISC 36 is point of interfaces of in mobile radio communication network the mobile subscriber being called out.Though GMSC 36 is shown an independently node for clarity, it also can be arranged to MSC 38.Each mobile services switching centre 38 is carried out the telephone exchange related with the calling that relates to travelling carriage (MS) 46 and is operated, and comprises docking with other telecommunications networks 32 and 34 and being that Route Selection is carried out in Mobile Originated calling.
Each MSC38 is furnished with a calling party location register (VLR) 40, and it comprises a database, wherein has casual user's information of the MSC38 needs that it cooperated, so that provide service for the travelling carriage in the service area of this MSC.Usually, when a travelling carriage entered a visit net or service area, it will be registered to VLR40.Then, VLR40 stores to homing user position register (HLR) 41 requests and the data that receive relevant this roaming mobile stations of this travelling carriage.As a result, when this visit travelling carriage related to calling, VLR40 had just had the required information of calling out of setting up.Though VLR40 can be an independently node, preferably the MSC that is cooperated with it integrates, to save two signaling exchanges between the node.
Homing user position register (HLR) 41 is database nodes of a storage and leading subscriber service appointment situation.Be each " ownership " mobile subscriber, HLR41 has nonvolatil user data, the mobile station ISDN number of unique identification mobile phone (MSISDN) in the PSTN numbering plan for example, and distribute to each mobile subscriber, in mobile network, be used to the international mobile subscriber identity (IMSI) of unique sign of calling out.All user profile relevant with network all are connected to IMSI.HLR41 has a traffic table, listed check and approve the mobile subscriber that uses and with the corresponding active user's location number in address of current VLR40 as mobile subscriber's service.
Determined service MSC/VLR (in home network or visit net), the calling of travelling carriage 46 has just been sent to the base station 44 that cooperates with sub-district, the current place of called mobile station by serving MSC.Utilize well-known fixed agreement and form process in the various GSM standard of file, set up calling by base station 44 with the radio interface between the travelling carriage 46 and be connected.
During call setup, special in the present invention according to the characteristic of relevant available channel also according to the ability of travelling carriage, be the dedicated radio link assignment logic Traffic Channel between base station and the travelling carriage.After connecting Traffic Channel (for example tdma slot) foundation by a distribution, signal strength signal intensity and voice quality to be monitored, monitoring result is delivered to BSC, and BSC can start to connect according to those reports and switch.
When making a call, BSC is that travelling carriage distributes an available Traffic Channel (TCH).In current CSM system, a Traffic Channel (TCH) can support single full rate communication (as Fig. 3 50 shown in), also can support two half rates communication (as Fig. 3 22 and 24 shown in).Typical full rate communication is 13kbits/s corresponding to bit rate, and typical half rate communications is 6.5kbits/s corresponding to bit rate.Certainly, traffic channel full rate is meant the Traffic Channel that a single full rate of current support is called out, and half rate is meant the Traffic Channel that one or two half rate of a current support is called out.
Below in conjunction with Fig. 4. the more detailed block diagram of BSC42, base station 44 and dual rate travelling carriage 46 is described.Just for illustration and explanation, what illustrate is functional-block diagram.Yet those operations can be carried out with any suitable electronic circuit, comprise the master processor of DSP, AGIC, suitably programming etc.
Communication traffic load in sub-district, sector or the lane place of each base station is monitored by BSC42.Yet this operation or function can be carried out by other entities such as MSC38, each base station or other radio net controlled entities.BSC42 comprises a communication traffic load detector 50, in the example of this simplification, is used for monitoring the communication traffic load by in the regional X of base station 44 services.BSC42 is that same task is carried out in this zone of each base station under its control.Communication traffic load detector 50 comprises a comparator 52 and a traffic channel full rate (TCH) usage count device 54.Counter 54 is by adding 1 and subtract 1 and follow the tracks of the sum of the current Traffic Channel that takies of calling area " X ".If Traffic Channel can not be used for supporting a full rate to call out, just think occupiedly, that is to say that this channel partly or completely distributed to circuit switching or packet switching service.The output of counter 54 is delivered to comparator 52 with a threshold value (T).Threshold value can be corresponding to the certain Traffic Channel number that is provided with by Mobile Network Operation side.When the output of counter surpassed this thresholding, comparator produced a communication traffic load signal, can be used for making a high load capacity flag set for sub-district X in the controller 56.Best, this threshold value (T) has sluggishness (hysteresis), minimizes so that undesirable channel speed switches.Therefore, controller 56 is from each base station 44 receive channel requests, to the channel allocation of these base station issue mobile communication.Controller 56 references to storage 58 deposit one in and list the current table that is assigned to the travelling carriage with dual rate ability of traffic channel full rate.Carrying out during channel allocation and channel cancel, controller 56 increases progressively respectively and the full rate TCH usage count device 54 in the corresponding base station zone of successively decreasing.
Each base station 44, the base station for sub-district X that for example illustrates comprises many transceivers, be used for setting up and be maintained in regional X in each channel on the radio interface of the travelling carriage of being served.The example of the base station transceiver of a simplification is shown in square frame 44, and it comprises a baseband processing circuitry 60.Baseband processing circuitry 60 switchably is connected to one of full rate codec/decoder 64 and half-rate encoder/decoder 66 by switch 62, and full rate codec/decoder 64 and half-rate encoder/decoder 66 switchably are connected to transmission circuit 72 and antenna 76 in end opposite by switch 70.Base station controller 74 is carried out a series of base stations control operations, comprise according to a particular communication on a Traffic Channel at full speed rate the position of switch 62 and 70 still is set with half rate.
Dual rate travelling carriage 46 shown in Fig. 4 except other devices, also comprises a baseband processing circuitry 80.Baseband processing circuitry 80 switchably is connected to one of full rate codec/decoder 84 and half-rate encoder/decoder 86 by switch 82, and the output of full rate codec/decoder 84 and half-rate encoder/decoder 86 switchably is connected to transmission circuit 90 and antenna 94 by switch 88.Dual rate travelling carriage controller 92 is carried out a series of controlled function, comprises that what accept according to travelling carriage is the position that full rate or half-rate channel distribute (during beginning or switch back) control switch 82 and 88.
Working condition below in conjunction with the flowchart text second embodiment of the present invention shown in Fig. 5 A.Certainly, some travelling carriages of base station and base station current service are to support and allow to change channel speed.If do not support or allow to change channel speed, the change that can block channel speed.For example, begin to be assigned to some type of call that a full rate is called out, for example data call and so in some cases, may not allow to change into half rate and call out after calling begins to be established as a full rate connection.
First step is that the comparators 52 in the output that utilizes full rate usage count device 54 of communication traffic load detector, thresholding input and the communication traffic load detector 50 are determined communication traffic load, this in this second embodiment corresponding to the current traffic channel full rate number (square frame 100) that has distributed.Adjudicate at square frame 102, determine whether current communication traffic load surpasses thresholding (preferably including a hysteresis).If no, control turns back to square frame 100, and the monitoring communication traffic load does not need to change channel speed this moment.
If the communication traffic load in this sub-district surpasses thresholding, BSC controller 56 currently in the X of this sub-district is assigned to traffic channel full rate and if necessary can uses the table 58 (square frame 106) of the dual rate travelling carriage of half rate with regard to producing one.Make judgement at square frame 108 controllers 56, determined whether that any dual rate travelling carriage is included in this table.If no, control turns back to square frame 100, repeats said process.
Yet, if there is the current dual rate travelling carriage that is assigned to a traffic channel full rate to be listed in the table, just make another judgement at square frame 110, determine whether any Traffic Channel that the base station of regional X is furnished with has the half rate of a free time and connect.As above in conjunction with Figure 3, a Traffic Channel can support two half rates to connect.Therefore, it is higher fully to take this Traffic Channel efficient with two half rates callings.So will be listed in the current calling on traffic channel full rate of the dual rate travelling carriage on the top of this table switches to remaining idle half rate and connects (square frame 112).This switches to other call requests and has discharged a traffic channel full rate, may some call request need a traffic channel full rate during the high traffic demand.Perhaps, the full speed channel of release can be used for supporting two new half rates to call out connection.
BSC controller 56 is that base station controller 74 and travelling carriage controller 92 produce necessary switching command.When originally travelling carriage 46 sent to its serving BS with " channel request " message, the base station just comprised this channel request message with " channel a needs " message, sends to BSC.A part of channel request shows the channel classification that travelling carriage can be used for communicating by letter, for example full rate, half rate or the like.BSC sends to travelling carriage by serving BS with one " channel allocation " order then, wherein contains one and need is used for setting up or the channel description of the initial or new half rate of switch call.This new half rate of base station activation.For switching, when this new Traffic Channel obtains confirming, BSC controller 56 just sends to travelling carriage by old traffic channel full rate with a message, wherein contains the information about frequency, time slot and the power output of this new half rate.Travelling carriage be tuned to new frequency, on corresponding time slot, send to switch the access burst pulse train.In case detect and confirmed that those bursts, travelling carriage just send a handoff completion message, thereby make old traffic channel full rate deactivation, can assignment use to other communications.
On the other hand, can not connect the Traffic Channel of supporting that a current half rate connects with another idle half rate if having, just make judgement at square frame 114, determine whether that any two half-rate channels connect all Traffic Channel at leisure, just one can be used for supporting a full rate to connect or two Traffic Channels that half rate connects.If no, just remove dual rate travelling carriage table 58 (square frame 122), process is returned square frame 100.On the contrary, if there is an available half-rate channel to connect, just the travelling carriage on the top that is listed in table 58 is carried out and switched, switch to a new half rate on the idle business channel that square frame 114 is determined from a current full rate connection and connect (square frame 116).When square frame 112 or 116 is carried out switching, the travelling carriage list item (square frame 118) of delete columns on the top of table 58.Make judgement at square frame 120 then, determine that whether communication traffic load is less than amount of hysteresis of thresholding.If not, the sub-district still is under the high traffic situation, can increase additional capacity by channel speed is changed into the half rate connection from full rate.On the contrary, if communication traffic load fully has been reduced to below the thresholding, just remove table 58 at square frame 122, process is returned square frame 100.
If determine that in decision block 102 communication traffic load surpasses thresholding, BSC controller 56 just attempt by allow for new call request distributes/possible half rate is with the raising capacity, see the sign A among Fig. 5 A, describe below in conjunction with flow chart shown in Fig. 5 B.Under the high traffic load condition, whenever receive a new channel request (square frame 130), determine the rate capacity (square frame 132) of travelling carriage with regard to the indication that can handle the channel of what type according to the travelling carriage related that in this channel request message, contains with this channel request.A traffic channel full rate (no matter being what reason) just continues channel and sets up if desired, distributes a traffic channel full rate, if there is a traffic channel full rate to use.Yet, if current hereto call request does not need a traffic channel full rate, just distributing a half rate (square frame 136), control turns back to the square frame 100 among Fig. 5 then.When detecting communication traffic load and fully reduced, can carry out an optional process, some ongoing half rates are called out switch to selectively on the available full speed channel.
Consider following this simple example.Suppose that base station 44 has four transceivers altogether, each transceiver comprises eight time slot channels.Therefore, this base station comprises 32 time slots altogether, wherein have three to be used for the control channel signaling, and the two nineteen time slots that stay is used for Traffic Channel.Suppose that more all base station transceivers can both transmit full rate and half-rate channel.Suppose to have the travelling carriage of half can carry out dual rate communication, and second half can only carry out full rate communication.The communication traffic load threshold setting is 75 percent, and sluggishness is 5 percent.For this example, convert the Traffic Channel number to, be exactly thresholding be 22 Traffic Channels, sluggishness is a Traffic Channel.Therefore, set when the high load capacity sign reaches 20 three or more in the current Traffic Channel that takies, and when the current Traffic Channel that takies is less than 21, reset.
Suppose these Traffic Channels current be to use like this: two Traffic Channels are distributed as Packet Data Channel, ten Traffic Channels are taken by the travelling carriage that is merely able to full rate, a Traffic Channel is called out by two half rates and is taken, two Traffic Channels each each are called out by a half rate and are taken, and seven Traffic Channels are taken by the current dual rate travelling carriage that is just adopting full rate to connect.Add up, it is occupied always to have 22 Traffic Channels, so the high traffic load indicates not set.
Suppose, set up a full rate for another dual rate travelling carriage again and call out.So high traffic load flag set.Base station controller 56 produces a dual rate travelling carriage table of showing the handoff candidate object.This table comprises eight list items, and is corresponding with current eight dual rate travelling carriages that using full rate to be connected.These full rates connections switch to half-rate channel one at a time, alleviate up to the high load capacity situation.For example, first full rate is connected move on to a part and distributed to and transmit a half rate and call out the half rate of a free time on the Traffic Channel in the Traffic Channel that connects and connect.After this first switching, the Traffic Channel number that takies equals 22, were it not for to set up new calling, and this number is not low to being enough to that the high load capacity sign is resetted.So, second connection moved on to the idle component of the Traffic Channel that second part distributed.The Traffic Channel number that takies is reduced to 21, and this is not low equally to being enough to that the high load capacity sign is resetted.The 3rd full rate connected a half-rate channel on the full speed channel that moves on to a free time.Another the available half rate that again the 4th connection is moved on on this Traffic Channel connects.
Be transformed into four new half rates connections by these four full rates are connected, the Traffic Channel number that takies reduces to 20 from 23.As a result, with regard to having vacateed four supplementary service channels, can be used for being other call service to switch in the minimum execution district of cost.Thereby satisfied the business demand surge effectively with dynamical fashion, and do not needed to replenish base station transceiver.
Though the present invention describes in conjunction with specific embodiments, those skilled in the art can recognize that the present invention is not limited to illustrate and illustrative these specific embodiments here.The present invention also can be with various multi-form, embodiment shown in here and outside the explanation and modification, and many modification, modification and equivalents realize.Therefore,, be appreciated that this explanation is illustrative and exemplary, just for an explanation that complete sum is detailed of the present invention is provided though the present invention describes with its preferred embodiment.So the present invention is only limited by spirit of the present invention and the scope of patent protection that appended claims provides.
Claims (31)
1. the method for the capacity of a raising in the cellular communication system that travelling carriage communicates by Traffic Channel, described method comprises the following steps:
For communicating the Traffic Channel of setting up a first rate with a travelling carriage that is positioned at a specific sub-district;
Determine the communication traffic load of described sub-district; And
If the communication traffic load of described sub-district surpasses a thresholding, just the Traffic Channel of described first rate is changed to the Traffic Channel of one second speed.
2. the method for claim 1, described method also comprises the following steps:
If the communication traffic load of described sub-district surpasses a thresholding, response relates to the channel request of the travelling carriage in the described sub-district, sets up the Traffic Channel of the second new speed.
3. the method for claim 2, described method also comprises the following steps:
Before described establishment step, determine whether the travelling carriage that identifies has the ability that the channel by one second speed communicates in channel request.
4. the process of claim 1 wherein that described first rate is the high speed of ratio second speed.
5. the method for claim 1, described method also comprises the following steps:
Determine whether described travelling carriage has the wherein dual rate ability that communicates of any one speed of described first and second speed of utilizing,
Wherein said change step comprises determines whether described travelling carriage has the dual rate ability.
6. the method for claim 5, described method also comprises the following steps:
For a travelling carriage, determine whether to allow to change on the channel of one second speed and communicate with dual rate ability.
7. the process of claim 1 wherein that described change step comprises the following steps:
The Traffic Channel from first rate is carried out in described communication to be switched in the district of the Traffic Channel of second speed.
8. the process of claim 1 wherein described second speed corresponding to the bit rate of 6.5kbits/s, and described first rate is corresponding to the bit rate of 13kbits/s.
9. the process of claim 1 wherein that capacity that the communication of described second speed takies is half of the capacity that takies of the communication of described first rate.
10. the method for claim 1, described method also comprises the following steps:
Give a current Traffic Channel of just supporting another second rate communication with the allocation of communications of second speed.
11. the method for claim 1, described method also comprises the following steps:
Work out one and show table with the dual rate travelling carriage that utilizes the ability that the described first rate and second speed communicates.
12. the method for claim 11, described method also comprises the following steps:
In described determining step, adopt sluggish.
13. the travelling carriage of a raising in each sub-district is by the method for the capacity in Traffic Channel and the cellular communication system that corresponding base station is connected, described method comprises the following steps:
Response for one be in a travelling carriage in the sub-district and communicate the request of setting up a Traffic Channel, determine the Traffic Channel rate capacity of described travelling carriage;
Determine the communication traffic load of described sub-district; And
If described cell communication traffic load surpasses a thresholding, if having, described travelling carriage utilizes the wherein ability that communicates of any one speed of a higher first rate and second lower speed, for described travelling carriage is set up a Traffic Channel that communicates with the second lower speed.
14. the method for claim 13, wherein said lower second speed be corresponding to the bit rate of 6.5kbits/s, and described higher first rate is corresponding to the bit rate of 13kbits/s.
15. the method for claim 13, the communication of wherein said lower second speed take a Traffic Channel 1/2nd and the communication of described higher first rate takies a complete Traffic Channel.
16. the method for claim 13, described method also comprises the following steps:
The communication of described lower second speed is switched to a current Traffic Channel of just supporting the communication of second speed that another is lower.
17. the method for claim 13, described method also comprises the following steps:
Work out a table of showing dual rate travelling carriage with the ability that communicates with second lower speed and higher first rate.
18. the method for claim 13, described method also comprises the following steps:
If be reduced to one below the thresholding,, described travelling carriage sets up a Traffic Channel for communicating with higher first rate at described cell communication traffic load.
19. the method for claim 18, described method also comprises the following steps:
In described determining step, adopt sluggish.
20. the method for claim 13, described method also comprises the following steps:
If communication traffic load surpasses a thresholding in described sub-district, check that the Traffic Channel of first rate connects, one of first rate Traffic Channel connection is changed to the Traffic Channel of one second speed.
21. coordinate in the cellular communication system that travelling carriage communicates by Traffic Channel and the base station that respectively has a respective cell to communicating the controller of setting up a first rate Traffic Channel with travelling carriage by a base station services for one kind, described controller comprises:
Storage is by the memory of the Traffic Channel rate capacity of a plurality of travelling carriages of described base station services, and
With the data processing circuit that described memory is connected, described data processing circuit is programmed to the following task of carrying out:
Determine with corresponding sub-district, base station in communication traffic load, and
If the communication traffic load in described sub-district surpasses a thresholding, described communication is re-assigned to second a lower rate business channel.
22. the controller of claim 21, wherein said travelling carriage have the ability that the Traffic Channel by first and second speed communicates.
23. the controller of claim 21, wherein said data processing circuit are carried out the Traffic Channel from first rate to communication and are switched in the district of the Traffic Channel of second speed.
24. the controller of claim 21, wherein said second speed is corresponding to the bit rate of 6.5kbits/s, and described first rate is corresponding to the bit rate of 21kbits/s.
Half of the capacity that 25. the controller of claim 21, the capacity that the communication of wherein said second speed takies are the communication of described first rate to be taken.
26. the controller of claim 21, wherein said data processing circuit is given a current Traffic Channel of just supporting the communication of another second speed with the allocation of communications of second speed.
27. showing to have, the controller of claim 21, one of wherein said memory stores utilize the wherein table of the dual rate travelling carriage of the ability that communicates of any one speed of the described first rate and second speed.
28. the controller of claim 21, if wherein the communication traffic load in described sub-district surpasses a thresholding, the channel request that described data processing circuit response relates to the travelling carriage in described sub-district is set up the Traffic Channel of the second new speed.
29. the controller of claim 21, wherein said controller be configured in one with base station controller that a plurality of base stations are connected in.
30. the controller of claim 21, wherein said controller be configured in one with mobile services switching centre that a plurality of base stations are connected in.
31. the controller of claim 21, described data processing circuit comprises:
One to taking the counter that Traffic Channel is counted, and
A comparator that compares through the output and the described thresholding of counter.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US5828298A | 1998-04-10 | 1998-04-10 | |
| US09/058,282 | 1998-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1305687A true CN1305687A (en) | 2001-07-25 |
Family
ID=22015836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99807232 Pending CN1305687A (en) | 1998-04-10 | 1999-03-05 | Increasing traffic capacity in cellular communications system by change of traffic channel rate |
Country Status (7)
| Country | Link |
|---|---|
| CN (1) | CN1305687A (en) |
| AU (1) | AU2966499A (en) |
| BR (1) | BR9909568A (en) |
| CA (1) | CA2328078A1 (en) |
| DE (1) | DE19983107T1 (en) |
| GB (1) | GB2353188A (en) |
| WO (1) | WO1999053700A1 (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425082C (en) * | 2004-04-19 | 2008-10-08 | 日本电气株式会社 | Radio channel control method in a cellular system |
| CN100426917C (en) * | 2004-06-16 | 2008-10-15 | 华为技术有限公司 | High-speed business switch-over method |
| CN100433935C (en) * | 2006-09-15 | 2008-11-12 | 上海贝尔三星移动通信有限公司 | Method and device for optimizing soft switching ratio in code division multiple access mobile communication system |
| CN100461905C (en) * | 2006-03-28 | 2009-02-11 | 华为技术有限公司 | Method for regulating voice speed of radio base station cell |
| CN100463378C (en) * | 2005-05-18 | 2009-02-18 | 大唐移动通信设备有限公司 | Channel rate adjusting method for packet data service of general mobile communication system |
| CN101056137B (en) * | 2006-05-17 | 2010-05-12 | 华为技术有限公司 | Channel transfer limit method and user terminal |
| WO2010145544A1 (en) * | 2009-06-16 | 2010-12-23 | Huawei Technologies Co., Ltd. | System and method for adapting an application source rate to a load condition |
| CN101588596B (en) * | 2008-05-23 | 2011-08-31 | 中国移动通信集团公司 | Method for controlling use quantity of half-rate channel, device and system |
| CN101291505B (en) * | 2007-04-16 | 2013-06-12 | 李开枝 | Half-rate automatic control method |
| CN109996287A (en) * | 2018-01-03 | 2019-07-09 | 中兴通讯股份有限公司 | A kind of half rate control method, device, equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2357221A (en) | 1999-12-10 | 2001-06-13 | Nokia Mobile Phones Ltd | A communication network where channels can operate at a first or second data rate |
| DE60016373T2 (en) | 2000-02-15 | 2005-12-01 | Lucent Technologies Inc. | Method and mobile radio system with improved uplink resource allocation |
| US6751477B1 (en) * | 2000-05-17 | 2004-06-15 | Telefonaktiebolaget Lm Ericsson (Publ) | Systems and methods for dynamically optimizing the fidelity of a speech signal received from a wireless telephony device and transmitted through a packet-switched network |
| AU2002235258A1 (en) | 2000-12-27 | 2002-07-08 | Ensemble Communications, Inc. | Adaptive call admission control for use in a wireless communication system |
| EP1259090A1 (en) * | 2001-05-17 | 2002-11-20 | Siemens Aktiengesellschaft | Method for optimized allocation of resources in a wireless network |
| WO2002093964A1 (en) * | 2001-05-17 | 2002-11-21 | Siemens Aktiengesellschaft | Method for optimally accessing the transmission capacity in a radio communications system |
| JP3930387B2 (en) | 2002-06-24 | 2007-06-13 | 株式会社エヌ・ティ・ティ・ドコモ | Transmission rate switching control method, mobile communication system, and mobile communication control apparatus in mobile communication system |
| CN100359979C (en) * | 2004-03-10 | 2008-01-02 | 华为技术有限公司 | A method for extending coverage area |
| GB2420054A (en) * | 2004-11-05 | 2006-05-10 | Siemens Ag | A method of controlling transmission rate in a mobile terminal in soft handover |
| GB2420254B (en) * | 2004-11-04 | 2007-03-07 | Siemens Ag | A method of controlling transmission rate in a mobile terminal in soft handover |
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|---|---|---|---|---|
| ZA946674B (en) * | 1993-09-08 | 1995-05-02 | Qualcomm Inc | Method and apparatus for determining the transmission data rate in a multi-user communication system |
| US5649299A (en) * | 1993-10-27 | 1997-07-15 | Motorola, Inc. | Apparatus and method for adapting a digital radiotelephone system to increased subscriber traffic |
-
1999
- 1999-03-05 BR BR9909568-8A patent/BR9909568A/en not_active IP Right Cessation
- 1999-03-05 CA CA002328078A patent/CA2328078A1/en not_active Abandoned
- 1999-03-05 CN CN 99807232 patent/CN1305687A/en active Pending
- 1999-03-05 GB GB0026225A patent/GB2353188A/en not_active Withdrawn
- 1999-03-05 WO PCT/SE1999/000337 patent/WO1999053700A1/en active Application Filing
- 1999-03-05 DE DE19983107T patent/DE19983107T1/en not_active Withdrawn
- 1999-03-05 AU AU29664/99A patent/AU2966499A/en not_active Abandoned
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100425082C (en) * | 2004-04-19 | 2008-10-08 | 日本电气株式会社 | Radio channel control method in a cellular system |
| CN100426917C (en) * | 2004-06-16 | 2008-10-15 | 华为技术有限公司 | High-speed business switch-over method |
| CN100463378C (en) * | 2005-05-18 | 2009-02-18 | 大唐移动通信设备有限公司 | Channel rate adjusting method for packet data service of general mobile communication system |
| CN100461905C (en) * | 2006-03-28 | 2009-02-11 | 华为技术有限公司 | Method for regulating voice speed of radio base station cell |
| CN101056137B (en) * | 2006-05-17 | 2010-05-12 | 华为技术有限公司 | Channel transfer limit method and user terminal |
| CN100433935C (en) * | 2006-09-15 | 2008-11-12 | 上海贝尔三星移动通信有限公司 | Method and device for optimizing soft switching ratio in code division multiple access mobile communication system |
| CN101291505B (en) * | 2007-04-16 | 2013-06-12 | 李开枝 | Half-rate automatic control method |
| CN101588596B (en) * | 2008-05-23 | 2011-08-31 | 中国移动通信集团公司 | Method for controlling use quantity of half-rate channel, device and system |
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| WO2010145544A1 (en) * | 2009-06-16 | 2010-12-23 | Huawei Technologies Co., Ltd. | System and method for adapting an application source rate to a load condition |
| CN102598836B (en) * | 2009-06-16 | 2015-09-09 | 华为技术有限公司 | For the system and method making application source speed be suitable for loading condition |
| US9357568B2 (en) | 2009-06-16 | 2016-05-31 | Futurewei Technologies, Inc. | System and method for adapting an application source rate to a load condition |
| US10880221B2 (en) | 2009-06-16 | 2020-12-29 | Futurewei Technologies, Inc. | System and method for adapting an application source rate to a load condition |
| CN109996287A (en) * | 2018-01-03 | 2019-07-09 | 中兴通讯股份有限公司 | A kind of half rate control method, device, equipment and storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2353188A (en) | 2001-02-14 |
| BR9909568A (en) | 2000-12-19 |
| GB0026225D0 (en) | 2000-12-13 |
| AU2966499A (en) | 1999-11-01 |
| WO1999053700A1 (en) | 1999-10-21 |
| CA2328078A1 (en) | 1999-10-21 |
| DE19983107T1 (en) | 2001-05-10 |
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