CN100388817C - Method for dynamic adjusting bandwidth in public service channel - Google Patents
Method for dynamic adjusting bandwidth in public service channel Download PDFInfo
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- CN100388817C CN100388817C CNB2003101193516A CN200310119351A CN100388817C CN 100388817 C CN100388817 C CN 100388817C CN B2003101193516 A CNB2003101193516 A CN B2003101193516A CN 200310119351 A CN200310119351 A CN 200310119351A CN 100388817 C CN100388817 C CN 100388817C
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Abstract
The present invention relates to a method for adjusting bandwidth of a bandwidth CDMA system and discloses a method for dynamically adjusting bandwidth in a public service channel. When the volume of CBS services fluctuates, the method can not cause the frequent switch of states of CTCH; a physical layer does not need frequently configuring by RRC. When the volume of the CBS services is zero, a CTCH channel is not deleted and a wireless resource is not occupied. The method for dynamically adjusting bandwidth in a public service channel comprises the following steps: A, BMC measures the volume of the CBS services; B, the method judges whether the BMC generates an abnormal event or not according to a measuring result; if the abnormal event occurs, a first timer is started, and go to step C; else, go to step A; C, the method judges the event of the BMC whether changes or not during a period from the starting time to the overtime of the first timer; if true, go to step B; else, go to step D; D, the bandwidth of the CTCH is adjusted according to the type of the event; a second timer is started; E, when the second timer is overtimed, the method judges whether the event of the BMC changes or not; if true, go to step B, else, go to step D.
Description
Technical field
The present invention relates to the bandwidth method of adjustment of broadband CDMA system, particularly the bandwidth method of adjustment of CTCH Common Traffic Channel in the broadband CDMA system.
Background technology
Cell broadcaste service (Cell Broadcast Service, be called for short " CBS ") be a kind of in the mobile communication business messenger service, it by CBC according to the certain way acquisition of information, all recipients in the given zone are sent information according to given frequency and number of times, and need not user's affirmation.For example weather forecast, transport information, market advertisement etc. need can realize with CBS to the business of users broadcasting.The zone of Cell Broadcast Short Message CBCH business can be one or more sub-districts (CELL) even whole land mobile communication network (Public Land Mobile Network is called for short " PLMN ").
Cell broadcasting system is generally by Cell Broadcast Entity (Cell Broadcast Entity, abbreviation " CBE "), CBC (Cell Broadcast Center, abbreviation " CBC "), base station controller (Base Station Controlor, abbreviation " BSC "), base station transceiver (Base TransceiverStation B, abbreviation " BTS "), travelling carriage (Mobile Station is called for short " MS ") and relevant interface unit are formed.
Wherein, CBE is responsible for separately broadcast content and broadcast parameter is submitted to CBC; CBC carries out integrated dispatch according to the agreement agreement to the message from different CBE, then operational order is delivered to BSC; BSC makes an explanation, stores and send to the BTS fill order to the order that receives; BTS carries out flow control to broadcast, sends to MS then.Support this professional MS not when talking state, can monitor broadcast message continuously and be shown to the user.In order to allow the cellphone subscriber optionally receive its interested message, each broadcast all has been assigned with a channel identication number, and the user can set by mobile phone, shields its unconcerned content.
The CBS business is by being mapped to the forward access channel logic channel CTCH Common Traffic Channel of (Forward Access Channel is called for short " FACH ") (Common Traffic Channel is called for short " CTCH ") carrying.For reasonable use radio channel resource more, radio network controller (RadioNetwork Controller, be called for short " RNC ") need dynamically adjust the bandwidth of CTCH according to the traffic carrying capacity of CBS information (CBS MESSAGE), promptly according to waiting that the service traffics of sending out distribute the CTCH bandwidth.
The communication industry has proposed a kind of scheme at present: broadcast/multi broadcast controller (Broadcast/MulticastControl is called for short " BMC ") comes the required bandwidth of dynamic-configuration CTCH according to the CBC traffic carrying capacity that radio resource controller (Radio Resource Control is called for short " RRC ") periodically records.If required bandwidth is greater than current C TCH bandwidth, then OVER FLOW (flow exceeds the quata) state appears in the BMC judgement, increases the CTCH bandwidth until satisfying the demands to the RRC request; If required bandwidth is less than current C TCH bandwidth, then UNDER FLOW (underfed) state appears in the BMC judgement, reduces the CTCH bandwidth until satisfying the demands to the RRC request; If required bandwidth equals current bandwidth just, then be judged to be NORMAL (normally) state, be left intact.RRC reconfigures to adjust the CTCH bandwidth physical layer according to the request of BMC.
In actual applications, there is following problem in such scheme: at first, the fluctuation of CBS traffic carrying capacity can cause UNDER FLOW, OVER FLOW, and the frequent transitions of three kinds of states of NORMAL, thus cause the frequent configures physical layer of RRC, be easy to generate ping-pong.Secondly, when each BMC generation state changed, the configuration that RRC will carry out physical layer changed the CTCH bandwidth, and RRC needs frequent configures physical layer, expends system resource.Once more, because it is 0 that the agreement regulation does not allow CBS DRX LEVEL1 (the discontinuous reception level 1 of cell broadcaste service) parameter N, therefore under the situation of CTCH channel and other channel multiplexing, when the CBS traffic carrying capacity is 0, if Radio Resource all will be distributed to other channel uses, can only delete CTCH,, must expend system resource and rebuild the CTCH channel if occur CBS again when professional.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of CTCH Common Traffic Channel Bandwidth Dynamic method of adjustment, when making CBS traffic fluctuation, can not cause the frequent switching state of CTCH, and RRC is frequent configures physical layer also; When the CBS traffic carrying capacity is 0, need not deletes the CTCH channel and not take Radio Resource.
In order to solve the problems of the technologies described above, the invention provides a kind of CTCH Common Traffic Channel Bandwidth Dynamic method of adjustment, comprise following steps:
A broadcast/multi broadcast controller is measured the traffic carrying capacity of cell broadcaste service;
B judges that according to the result of described measurement whether described broadcast/multi broadcast controller improper incident takes place, if then start first timer, enters step C, otherwise enters steps A;
From starting to time-out period, whether the incident of described broadcast/multi broadcast controller changes, if then enter step B, otherwise enters step D at described first timer in the C judgement;
D adjusts the bandwidth of described CTCH Common Traffic Channel according to the type of described incident, and starts second timer;
When the described second timer of E is overtime, judge whether the incident of described broadcast/multi broadcast controller changes,, otherwise enter step D if then enter step B.
Wherein, described method also comprises following steps:
Determine the maximum bandwidth of described CTCH Common Traffic Channel in advance, and divide the bandwidth class of described CTCH Common Traffic Channel.
Judge that the step whether described broadcast/multi broadcast controller improper incident takes place comprises following substep:
When described traffic carrying capacity during, judge described broadcast/multi broadcast controller generation underfed incident smaller or equal to the product of the current grade bandwidth and first multiplying power;
When described traffic carrying capacity during, judge the described broadcast/multi broadcast controller generation flow incident that exceeds the quata more than or equal to the product of the current grade bandwidth and second multiplying power;
When described traffic carrying capacity during, and during less than the product of current grade bandwidth and described second multiplying power, judge that described broadcast/multi broadcast controller is in normal condition greater than the product of current grade bandwidth and described first multiplying power.
Among the described step D, the step of adjusting the bandwidth of described CTCH Common Traffic Channel according to the type of described incident further comprises following substep:
Judge that described incident is that flow exceeds the quata or underfed, if flow exceeds the quata, then the bandwidth with described CTCH Common Traffic Channel increases one-level, if underfed, then the bandwidth with described CTCH Common Traffic Channel reduces one-level.
Described step D also comprises following substep:
Judge described incident whether flow exceed the quata and described CTCH Common Traffic Channel has been in high bandwidth grade, if then occur congestedly, and carry out congested processing to the report of broadcast/multi broadcast interconnect function;
Behind described relieve congestion, enter described steps A.
When described CTCH Common Traffic Channel and other channel multiplexings, by increase or reduce described CTCH Common Traffic Channel can with forward access channel transmission block number the bandwidth of described CTCH Common Traffic Channel is increased or reduces one-level.
When described CTCH Common Traffic Channel during not with other channel multiplexings, the TFS Transport Format Set by changing forward access channel increases or reduces one-level with the bandwidth of described CTCH Common Traffic Channel.
Parameter N by changing the discontinuous reception level 1 of cell broadcaste service increases or reduces one-level with the bandwidth of described CTCH Common Traffic Channel.
Described step D also comprises following substep:
When described traffic carrying capacity was 0, the parameter N of the discontinuous reception level 1 of described cell broadcaste service was set to 0;
After described traffic carrying capacity becomes non-0 from 0, the parameter N and the K of the discontinuous reception level 1 of described cell broadcaste service is set according to described traffic carrying capacity;
Radio network controller sends the cell broadcaste service scheduling message at back to back first CTCH Common Traffic Channel delivery time, and sends cell broadcast service messages according to the indication of this cell broadcaste service scheduling message;
Subscriber equipment activates cell broadcaste service and receives after receiving described parameter N and K, and the message on all Cell Broadcast CB reception CTCH Common Traffic Channels, up to receiving a cell broadcaste service scheduling message.
When described traffic carrying capacity is big around described CTCH Common Traffic Channel bandwidth fluctuation amplitude, the duration of described first timer and described second timer is arranged to smaller value.
By relatively finding, technical scheme difference with the prior art of the present invention is, first, by to CTCH available bandwidth divided rank, the bandwidth of CTCH is adjusted on certain grade at every turn, used first timer and different state-event decision methods, judge whether the BMC state changes, rather than adjust to the required bandwidth of CBS traffic carrying capacity just, and when not waiting, the required bandwidth of CBS traffic carrying capacity and existing CTCH bandwidth change the state of BMC immediately at every turn; When RRC adjusts the CTCH bandwidth, use second timer change CTCH bandwidth step by step.This way has been avoided making UNDER FLOW, NORMAL, three kinds of state frequent transitions of OVER FLOW because of the fluctuation interference of CBS traffic carrying capacity, causes RRC to reshuffle the problem of physical layer continually.Avoided the fluctuation of CBS traffic carrying capacity to cause the ping-pong of UNDER FLOW and OVER FLOW Event triggered.Avoid implementing bandwidth and adjusted to the wrong state exchange that carries out in the time period that produces effectiveness.Reduce the frequency that reduces the CTCH bandwidth, avoided burst flow to cause the frequent transitions of UNDER FLOW state and OVER FLOW state simultaneously.Avoided between congested and normal condition the ping-pong of conversion back and forth.
The second, when the CTCH bandwidth need be adjusted,, both adjusted the actual Radio Resource that takies of CTCH and don't need updating system information, reshuffle physical layer by changing the purpose that CTCH can reach the Radio Resource of adjusting the actual use of CTCH with FACH TB number.
The 3rd, under the situation of CTCH and other channel multiplexing, the CBS traffic carrying capacity be 0 o'clock can CTCH can with FACH TB number be set to 0, make Radio Resource all distribute to other channel and use, kept CTCH simultaneously, need not reshuffle channel.Perhaps make CBS DRXLEVEL1 parameter N can be set at 0 o'clock in the modification agreement, after supplementary provisions CBS traffic carrying capacity becomes non-0 by 0, reconfigure CBS DRXLEVEL1 parameter according to traffic carrying capacity, the configures physical layer, and notice UE receives message, thereby can be 0 o'clock reservation CTCH channel also, need not rebuild the CTCH channel when needed once more in the CBS traffic carrying capacity.
Description of drawings
Fig. 1 is a method flow diagram of dynamically adjusting the CTCH bandwidth according to the CBS traffic carrying capacity according to an embodiment of the invention.
Embodiment
For making the purpose, technical solutions and advantages of the present invention clearer, the present invention is described in further detail below in conjunction with accompanying drawing.
Fig. 1 illustrates the method flow diagram of dynamically adjusting the CTCH bandwidth according to the CBS traffic carrying capacity according to an embodiment of the invention.The bandwidth that this method is used for dynamically adjusting CTCH in the cell broadcaste service of mobile communication system is utilized the system wireless resource simultaneously efficiently to satisfy the demand that sends CBS, improves running efficiency of system.
Following with reference to Fig. 1, describe how dynamically to adjust the CTCH bandwidth in detail according to the CBS traffic carrying capacity.
In the present embodiment as shown in Figure 1, in step 100, system carries out initialization, and RRC determines the CTCH maximum bandwidth, divides the CTCH bandwidth class.CTCH bandwidth=FACH bandwidth * (CTCH can use the maximum TB number of FACH TB number/FACH) * MTTI/N, wherein, TB is the abbreviation of transmission block (TransportBlock), MTTI represents a Transmission Time Interval (Transmission Timing Interval, be called for short " TTI ") the interior frame number that sends, a TTI must be the integral multiple of 10ms, for example when being 20ms, TTI then comprises two 10ms frames, N is the cycle that sends on the air interface in addition, just what TTI times to carry out the transmission of a TTI every.RRC can distribute bandwidth to be divided into several grades from 0 to maximum CTCH the CTCH channel.It should be noted that especially the bandwidth greater than 0 minimum level must satisfy the demand that sends CBS SCHEDULE MESSAGE (cell broadcaste service scheduling message).CBS SCHEDULE MESSAGE is the message that the notifying user equipment sent of CBC (UserEquipment is called for short " UE ") is at a time listened.By CTCH is set certain grade, make that RRC need not just in time adjust to required bandwidth with the CTCH bandwidth, but leaves certain leeway, makes ping-pong really be avoided when state changes to OVER FLOW or UNDER FLOW.Suppose that CTCH present located grade is A, than its low grade be B, a high grade be C.
Then enter step 110, BMC measures the CBS traffic carrying capacity, according to the certain proportion relation of CBS traffic carrying capacity and current C TCH bandwidth, judges event.Specifically, BMC carries out measuring business volume, if the CBS traffic carrying capacity is lower than current C TCH bandwidth certain proportion, for example is lower than A/2, then judges the UNDER FLOW incident that takes place; In like manner, if the CBS traffic carrying capacity is higher than A, then judge the OVER FLOW incident that takes place.Under other situation, promptly be higher than A/2 and be equal to or less than under the situation of A, judge that BMC is in the NORMAL state.BMC is periodically measuring the CBS traffic carrying capacity.
Then enter step 120, BMC judges whether the present located state is the NORMAL state.If the NORMAL state is then got back to step 110.Otherwise judge OVER FLOW or UNDER FLOW incident take place, enter step 130.For example, be higher than A/2 and be equal to or less than under the situation of A, judging that BMC is in the NORMAL state.
In step 130, owing to judge that in step 120 OVER FLOW incident or UNDER FLOW incident have taken place BMC, therefore in this step, BMC starts first timer.The effect of first timer is to avoid the BMC state frequently to change, and makes the fluctuation of CBS traffic carrying capacity can not cause ping-pong.The duration setting of first timer is based on CBS traffic carrying capacity, CTCH bandwidth and dispatching algorithm.For example, can calculate variance to CBS traffic carrying capacity sampling in the long period section, if the CBS traffic carrying capacity fluctuates widely up and down around the CTCH bandwidth, then the first timer duration is just set shortlyer; If the CBS traffic carrying capacity is around the fluctuation within a narrow range up and down of CTCH bandwidth, then the first timer duration is just set longlyer.
Then enter step 140, before first timer is overtime, judge whether the BMC incident changes.If do not change, still keep OVER FLOW or UNDER FLOW incident, and do not have redirect mutually, then enter step 150; Otherwise enter step 120, after entering step 120, judge whether to change to the NORMAL state earlier, if NORMAL state, then stop timer, the CBS traffic carrying capacity drops to below the current bandwidth A certain proportion, and for example B (noticing that the UNDERFLOW incident may appear in this moment) then judges the NORMAL state that returns to.BMC reenters step 110 and handles variety of event.Otherwise between the OVER FLOW state of BMC and the UNDER FLOW state redirect has taken place, at this moment needed to reset first timer.
In step 150, because judge when first timer expired, OVER FLOW incident or UNDER FLOW incident still take place BMC, and there is not redirect mutually in step 140, therefore in this step, the BMC state is set to UNDER FLOW or OVER FLOW state.Unlike the prior art be, BMC just changes state immediately after finding OVER FLOW incident or UNDERFLOW incident, and be to use timer to make that after OVER FLOW or UNDER FLOW incident keep certain hour just change has taken place the affirmation state, thereby the ping-pong of having avoided the fluctuation owing to the CBS traffic carrying capacity to cause effectively.
Then enter step 160, BMC judges that whether current state also OVER FLOW incident is taking place, and the CTCH bandwidth has been in highest ranking, cannot increase continuing.If enter step 170, otherwise enter step 180.When OVER FLOW takes place, if the CTCH bandwidth can not continue to increase,, then stop second timer if second timer starts, BMC occurs congested to broadcast/multi broadcast interconnect function (Broadcast/Multicast Interworking Function is called for short " BM-IWF ") report.Before the relieve congestion, no longer handle OVER FLOW incident, BMC no longer preserves new CBS message.
In step 170, because judge that in step 160 the CTCH bandwidth has been in highest ranking, and OVER FLOW incident still takes place in BMC, and it is congested that BMC occurs to the BM-IWF report, and system carries out congested processing.Before the relieve congestion, system no longer handles OVER FLOW incident, and BMC no longer preserves new BMC message.Behind the relieve congestion, reenter step 110 and handle.
In step 180, can increase or reduce because of in step 160, judging the CTCH bandwidth, therefore in this step, BMC asks to reduce or increase one-level CTCH bandwidth to B or C to RRC, and RRC adjusts the CTCH bandwidth.Start second timer simultaneously.The purpose that second timer is set is to avoid implementing bandwidth to adjust to the wrong state exchange that carries out in the time period that produces effectiveness.Have the knack of and it will be appreciated by those skilled in the art that, adjust to the real performance of this adjustment effect from the enforcement bandwidth necessarily arranged a time of delay, general original OVER FLOW or UNDER FLOW incident still can keep a period of time after adjusting, if the state according to this moment makes at once whether next step adjustment of needs generally can be judged by accident, finally cause the generation of ping-pong.The duration setting of second timer can be provided with principle according to the duration of first timer in the above-mentioned steps 130.In the present invention, the method for adjusting the CTCH bandwidth has two kinds of situations, and first kind is the situation of CTCH and other channel multiplexing.When changing the CTCH bandwidth, at first attempt changing the FACH TB number that CTCH can use; If can not reach the demand of adjusting the CTCH bandwidth, then change CTCH LEVEL1 scheduling parameter N.If the CTCH bandwidth is reduced to 0, can CTCH can with FACH TB number be set to 0, when the CBS traffic carrying capacity is not 0, can increase or reduce the FACH TB number that CTCH can use.Adopt to change CTCH can with the method for FACH TB number replace the method that changes CTCH LEVEL1 scheduling parameter N, its benefit is to reshuffle physical layer, thereby has saved consequent overhead.Second kind be CTCH not with the situation of other channel multiplexing.Change CTCH LEVEL1 scheduling parameter N; If can not reach the demand of adjusting the CTCH bandwidth, then change the TFS of FACH.In this way, also can make when the CBS traffic carrying capacity is zero, RRC need not delete the CTCH channel, thereby saves because of rebuilding the spent system resource of CTCH channel.Also have a kind of replacement scheme, promptly revise consensus standard, allowing CBS DRX LEVEL1 parameter N is 0.No matter CTCH whether with other channel multiplexing, just CBS DRXLEVEL1 parameter N is set to 0 when the CBS traffic carrying capacity is 0.So both kept CTCH, and made CTCH not take Radio Resource again, and made UE needn't receive CTCH simultaneously.After regulation CBS traffic carrying capacity becomes non-0 by 0 simultaneously, according to traffic carrying capacity CBS DRX LEVEL1 parameter N and K are set immediately, RNC sends CBS SCHEDULE MESSAGE at back to back first CTCH delivery time according to the actual schedule situation, and the indication according to CBS SCHEDULE MESSAGE sends CBS message then.Accordingly, after the CTCH parameter N and K of UE after receiving renewal, take action same when activating for the first time CBS and receive, all CB subsequently all receive the message on the CTCH, till receiving a CBSSCHEDULE MESSAGE.N is 0 o'clock, reconfigures physical layer by system message update earlier, and this moment, N was made as non-zero, sent the message to UE then.
Then enter step 190, judge whether that when second timer was overtime, change had taken place the BMC incident.If then enter step 120, otherwise enter step 160.
Though by reference some preferred embodiment of the present invention, the present invention is illustrated and describes, but those of ordinary skill in the art should be understood that, can do various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (10)
1. a CTCH Common Traffic Channel Bandwidth Dynamic method of adjustment is characterized in that, comprises following steps:
A broadcast/multi broadcast controller is measured the traffic carrying capacity of cell broadcaste service;
B judges that according to the result of described measurement whether described broadcast/multi broadcast controller improper incident takes place, if then start first timer, enters step C, otherwise enters steps A;
From starting to time-out period, whether the incident of described broadcast/multi broadcast controller changes, if then enter step B, otherwise enters step D at described first timer in the C judgement;
D adjusts the bandwidth of described CTCH Common Traffic Channel according to the type of described incident, and starts second timer;
When the described second timer of E is overtime, judge whether the incident of described broadcast/multi broadcast controller changes,, otherwise enter step D if then enter step B.
2. CTCH Common Traffic Channel Bandwidth Dynamic method of adjustment according to claim 1 is characterized in that described method also comprises following steps:
Determine the maximum bandwidth of described CTCH Common Traffic Channel in advance, and divide the bandwidth class of described CTCH Common Traffic Channel.
3. CTCH Common Traffic Channel Bandwidth Dynamic method of adjustment according to claim 2 is characterized in that, judges that the step whether described broadcast/multi broadcast controller improper incident takes place comprises following substep:
When described traffic carrying capacity during, judge described broadcast/multi broadcast controller generation underfed incident smaller or equal to the product of the current grade bandwidth and first multiplying power;
When described traffic carrying capacity during, judge the described broadcast/multi broadcast controller generation flow incident that exceeds the quata more than or equal to the product of the current grade bandwidth and second multiplying power;
When described traffic carrying capacity during, and during less than the product of current grade bandwidth and described second multiplying power, judge that described broadcast/multi broadcast controller is in normal condition greater than the product of current grade bandwidth and described first multiplying power.
4. CTCH Common Traffic Channel Bandwidth Dynamic method of adjustment according to claim 3 is characterized in that, among the described step D, the step of adjusting the bandwidth of described CTCH Common Traffic Channel according to the type of described incident further comprises following substep:
Judge that described incident is that flow exceeds the quata or underfed, if flow exceeds the quata, then the bandwidth with described CTCH Common Traffic Channel increases one-level, if underfed, then the bandwidth with described CTCH Common Traffic Channel reduces one-level.
5. CTCH Common Traffic Channel Bandwidth Dynamic method of adjustment according to claim 4 is characterized in that described step D also comprises following substep:
Judge described incident whether flow exceed the quata and described CTCH Common Traffic Channel has been in high bandwidth grade, if then occur congestedly, and carry out congested processing to the report of broadcast/multi broadcast interconnect function;
Behind described relieve congestion, enter described steps A.
6. CTCH Common Traffic Channel Bandwidth Dynamic method of adjustment according to claim 4, it is characterized in that, when described CTCH Common Traffic Channel and other channel multiplexings, by increase or reduce described CTCH Common Traffic Channel can with forward access channel transmission block number the bandwidth of described CTCH Common Traffic Channel is increased or reduces one-level.
7. CTCH Common Traffic Channel Bandwidth Dynamic method of adjustment according to claim 4, it is characterized in that, when described CTCH Common Traffic Channel during not with other channel multiplexings, the TFS Transport Format Set by changing forward access channel increases or reduces one-level with the bandwidth of described CTCH Common Traffic Channel.
8. CTCH Common Traffic Channel Bandwidth Dynamic method of adjustment according to claim 4 is characterized in that, the parameter N by changing the discontinuous reception level 1 of cell broadcaste service increases or reduce one-level with the bandwidth of described CTCH Common Traffic Channel.
9. CTCH Common Traffic Channel Bandwidth Dynamic method of adjustment according to claim 8 is characterized in that described step D also comprises following substep:
When described traffic carrying capacity was 0, the parameter N of the discontinuous reception level 1 of described cell broadcaste service was set to 0;
After described traffic carrying capacity becomes non-0 from 0, the parameter N and the K of the discontinuous reception level 1 of described cell broadcaste service is set according to described traffic carrying capacity;
Radio network controller sends the cell broadcaste service scheduling message at back to back first CTCH Common Traffic Channel delivery time, and sends cell broadcast service messages according to the indication of this cell broadcaste service scheduling message;
Subscriber equipment activates cell broadcaste service and receives after receiving described parameter N and K, and the message on all Cell Broadcast CB reception CTCH Common Traffic Channels, up to receiving a cell broadcaste service scheduling message.
10. CTCH Common Traffic Channel Bandwidth Dynamic method of adjustment according to claim 1, it is characterized in that, when described traffic carrying capacity is big around described CTCH Common Traffic Channel bandwidth fluctuation amplitude, the duration of described first timer and described second timer is arranged to smaller value.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100401673C (en) * | 2005-06-23 | 2008-07-09 | 华为技术有限公司 | Method for adjusting high-speed downlink packet service |
| CN1859034B (en) * | 2005-09-02 | 2010-05-12 | 华为技术有限公司 | Method for up-link breaking step for soft switch period |
| CN100568996C (en) * | 2006-03-28 | 2009-12-09 | 华为技术有限公司 | Wireless cellular network and Mid Frequency distribution method thereof |
| CN101115296A (en) * | 2006-09-07 | 2008-01-30 | 华为技术有限公司 | User accessing method and system |
| CN101662455A (en) | 2008-08-29 | 2010-03-03 | 深圳华为通信技术有限公司 | Method and device for data transmission |
| CN101800955B (en) * | 2010-01-25 | 2013-12-11 | 中兴通讯股份有限公司 | Method and device for receiving cell broadcast service information in discontinuous reception manner |
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| CN1235740A (en) * | 1996-09-06 | 1999-11-17 | 诺基亚流动电话有限公司 | Mobile station and network having hierarchical index for cell broadcast service |
| WO2001037593A1 (en) * | 1999-11-17 | 2001-05-25 | Siemens Aktiengesellschaft | Method for transmitting messages in a radio communication system |
| WO2002025974A1 (en) * | 2000-09-22 | 2002-03-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement in a telecommunication system |
| CN1404241A (en) * | 2001-08-30 | 2003-03-19 | 华为技术有限公司 | Residential broadcast business transmitting method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1235740A (en) * | 1996-09-06 | 1999-11-17 | 诺基亚流动电话有限公司 | Mobile station and network having hierarchical index for cell broadcast service |
| WO2001037593A1 (en) * | 1999-11-17 | 2001-05-25 | Siemens Aktiengesellschaft | Method for transmitting messages in a radio communication system |
| WO2002025974A1 (en) * | 2000-09-22 | 2002-03-28 | Telefonaktiebolaget Lm Ericsson (Publ) | Method and arrangement in a telecommunication system |
| CN1404241A (en) * | 2001-08-30 | 2003-03-19 | 华为技术有限公司 | Residential broadcast business transmitting method |
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