CN100454774C - Shared channel power controlling method in trunking communication system - Google Patents
Shared channel power controlling method in trunking communication system Download PDFInfo
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- CN100454774C CN100454774C CNB200610011245XA CN200610011245A CN100454774C CN 100454774 C CN100454774 C CN 100454774C CN B200610011245X A CNB200610011245X A CN B200610011245XA CN 200610011245 A CN200610011245 A CN 200610011245A CN 100454774 C CN100454774 C CN 100454774C
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Abstract
The present invention discloses a power controlling method for a shared channel in a trunking communication system. The method comprises: a power controlling step for a reverse shared channel and a power controlling step for a forward shared channel. The power controlling step for a reverse shared channel comprises a step 11 and a step 12; in the step 11, the Node B of a network receives a reverse shared channel sent by a terminal and measures the channel quality of the reverse shared channel to decide a power adjustment scheme; in the step 12, the terminal correspondingly adjusts the transmission power of the reverse shared channel according to the power adjustment scheme in the step 11. The power controlling step for a forward shared channel comprises a step 21 and a step 22; in the step 21, the terminal receives a forward shared channel sent by the Node B and detects the channel quality of the forward shared channel; the terminal and/or a wireless network controller of a network decide/decides a power adjustment scheme according to the measurement value of the channel quality; in the step 22, the network correspondingly adjusts the transmission power of the forward shared channel according to the power adjustment scheme in the step 21. The power controlling method of the present invention can realize the maximization of system capacity under the premise of ensuring communication quality.
Description
Technical field
The present invention relates to the wireless colony mechanics of communication, particularly relate to the Poewr control method of the shared channel in CDMA radio trunking communication technology and other the point-to-multipoint delivery technology.
Background technology
In the CDMA radio cluster communication system, a key issue is the maximization of power system capacity, gets final product the maximization of simultaneously treated user or traffic carrying capacity.Therefore, in this system, under the prerequisite of considering transmitting power and interference, it is most important to power system capacity to reach desired quality of service with alap transmitting power.
For the up direction that is transmitted into network side in the system from terminal, promptly reverse, if satisfying under the prerequisite of communication quality, it is identical to control the signal level that each terminal transmits when arriving the network side radio R-T unit, then can make the up-link capacity of this system reach maximum.Otherwise,, then can be subjected to being difficult to obtain satisfied communication quality from the interference of other terminal signaling if the signal level that transmits when arriving the network side radio R-T unit of terminal is low excessively; And if signal level is too high, though this terminal can obtain communication quality preferably, its power consumption is bigger on the one hand, has a strong impact on the stand-by time of terminal under limited battery, high-power on the other hand signal can produce other terminal and disturb, thereby influences the communication quality of other terminal.
For the down direction that is transmitted into terminal in the system from network side, i.e. forward direction if Control Allocation is given the channel of each terminal, is launched with minimum power satisfying under the prerequisite of communication quality, then can make the downlink capacity of this system reach maximum.Otherwise, if transmitting power is low excessively, then can cause terminal to receive difficulty, communication quality is poor; And if transmitting power is too high, then on the one hand can influence other terminal, comprise that the signal of other terminal in the neighbor cell receives, if network side power limited on the other hand also can cause power dissipation, thereby cause capacity to reduce.
For power system capacity is provided as far as possible, CDMA communication system has all been taked corresponding wireless channel power control solution.Such as, point-to-point service among the UMTS of code division multiple access (universal mobile telecommunications system), dedicated wireless channel to each terminal distribution all adopts the method that interior ring fast power is controlled and the outer shroud slow power is controlled, and makes each terminal obtain satisfied quality of service under as far as possible little transmitting power condition.Inner loop power control and outer-loop power controlling method can be with reference to other data about the UMTS aspect in detail.
Cluster communication system is a kind of point-to-multipoint system, its business sends to a plurality of terminals by an information source, when for example carrying out group calling, although a group can comprise a plurality of user terminals, yet synchronization has only a user as the speaker speech data to be sent to other interior user of group as information source at most.For improving the service efficiency of Radio Resource, wireless clustered system generally adopts a plurality of terminals to share the technology of Radio Resource.In the honeycomb cluster communication system, in a sub-district, distribute one group of radio channel resource for each group service, comprise a up channel and a down channel.All group member's user terminals in this sub-district are shared this radio channel resource.In cluster communication system, oppositely the sharing mode of radio channel resource is different with forward direction.For oppositely, arrive network side owing to can only there be a speaker to send business information in group of synchronization at most, so this speaker can use the dedicated wireless channel resource also can use the sharing wireless channel resource.And for forward direction, system assignment forward shared channel resource, a plurality of group member's user terminals that need receive business information simultaneously utilize this channel to receive simultaneously, to improve the utilization ratio of Radio Resource.
In the CDMA radio cluster communication system, because shared channel is shared by one group of specific user, its using method is different fully with dedicated channel.Therefore, need design special Poewr control method for it.Wherein, described shared channel comprises forward direction sharing wireless channel and reverse sharing wireless channel.
Summary of the invention
The object of the present invention is to provide the Poewr control method of the shared channel in a kind of trunked communication system and other point-to-multipoint communication system, to solve in CDMA colony communication system and other point-to-multipoint communication system power control problem about shared channel.
To achieve these goals, the present invention proposes the Poewr control method of shared channel in a kind of trunked communication system, described shared channel is between network side and terminal, comprise by a described terminal and after described network side mandate, send to the reversed shared channel of this network side and send to the forward shared channel of a plurality of described terminals by described network side as the speaker, wherein, described network side comprises radio network controller and Node B again, described method comprises: (1) reversed shared channel power controlled step, comprise again: step 11, described Node B receives the signal of the described reversed shared channel of described terminal transmission, and measure the channel quality of this reversed shared channel, adjust scheme with this power of determining this reversed shared channel; And step 12, described terminal is adjusted scheme, the transmitting power of corresponding this reversed shared channel of adjustment according to the power in the described step 11; And, and (2) forward shared channel power controlled step, comprise again: step 21, described terminal receives the signal of the described forward shared channel of described Node B transmission, and measure the channel quality of this forward shared channel, described terminal and/or described radio network controller determine that according to the channel quality measurements of this forward shared channel the power of this forward shared channel adjusts scheme; And step 22, described network side is adjusted the transmitting power of corresponding this forward shared channel of adjustment of scheme according to the power in the described step 21.
Comprised also that before described step 11 radio network controller disposes first desired value and second desired value of described reversed shared channel, and send to described Node B and described terminal respectively.Described terminal is determined the Initial Trans of described reversed shared channel according to described second desired value, and launches described reversed shared channel with this Initial Trans.
Described step 11 comprises, described Node B is compared the channel quality measurements of described reversed shared channel with described first desired value, if this measured value is less than described first desired value and reach oppositely less than threshold values, then increase order to described terminal transmitted power by described forward shared channel, if this measured value is greater than described first desired value and reach oppositely greater than threshold values, then reduce order to described terminal transmitted power by described forward shared channel, wherein, described oppositely greater than threshold value and/or describedly oppositely give described Node B by described radio network controller configuration concurrency less than threshold value.
Here, described network side can be set up described reversed shared channel for the sub-district that all group services relate to, and perhaps also can only set up described reversed shared channel for the sub-district at described speaker place.
In addition, in the described step 12, described terminal is further for using the terminal of this reversed shared channel.
Comprised also that before described step 21 configuration of described radio network controller is used for the 3rd desired value of described forward shared channel, with its preservation and send to described terminal.Described radio network controller is determined the Initial Trans of described forward shared channel and sends to described Node B that described Node B is launched the signal of described forward shared channel to described terminal according to this Initial Trans according to described the 3rd desired value.
A kind of situation for the forward shared channel Poewr control method, described step 21 comprises, described terminal is compared the channel quality measurements of described forward shared channel with described the 3rd desired value, if this measured value is less than described the 3rd desired value and reach forward direction less than threshold value, then increase request to described radio network controller transmitted power; If greater than described the 3rd desired value and reach forward direction, then reduce request, or do not send any described power and increase/reduce request to described radio network controller transmitted power greater than threshold value.Described step 22 comprises that described radio network controller increases/reduce request according to the described power that receives, and the power that sends described forward shared channel to the described Node B corresponding with this terminal increases/reduce order.Perhaps described step 22 comprises, if receiving any described power in very first time length, described radio network controller do not increase/reduces request, then send the decrease commands of described forward shared channel to the described Node B corresponding with this terminal, or not sending any order, wherein said very first time length is by described radio network controller setting.In described step 22, increase when receiving the described power that a plurality of described terminals send simultaneously/when reducing to ask, described radio network controller can be handled according to the request that wherein increase/decrease is maximum.
For the another kind of situation of forward shared channel Poewr control method, described step 21 comprises that described terminal sends the channel quality measurements of described forward shared channel to described radio network controller.Described step 21 also comprises, the channel quality measurements of the more described forward shared channel of described radio network controller and described the 3rd desired value, if this measured value is less than described the 3rd desired value and reach forward direction less than threshold value, then send the power increase order of described forward shared channel to the described Node B corresponding with this terminal, if this measured value is greater than described the 3rd desired value and reach forward direction greater than threshold value, then send the decrease commands of described forward shared channel to the described Node B corresponding with this terminal.Perhaps, described step 21 also comprises, if described radio network controller is not received the channel quality measurements of any described forward shared channel in very first time length, then send the decrease commands of described forward shared channel to the described Node B corresponding with this terminal, perhaps do not send any order wherein, wherein said very first time length is by described radio network controller setting.In described step 21, when receiving the channel quality measurements of the described forward shared channel that a plurality of described terminals send simultaneously, described radio network controller can be according to wherein maximum the handling of increase/decrease.
For the forward shared channel Poewr control method, described step 22 also comprises, comprise concrete transmission power level in the order if the power of the described forward shared channel that described radio network controller sends increases/reduces, then described Node B is launched described forward shared channel according to this concrete transmission power level; If do not comprise concrete transmission power level, the power that then described Node B is sent by described radio network controller configuration concurrency increases/reduces the transmitting power that step-length is come the current described forward shared channel of corresponding adjustment.
If confiscating the power of any described forward shared channel in second time span, described Node B increases and/or reduces order, then come the corresponding transmitting power that reduces described forward shared channel according to downward power steps, wherein said second time span and described downward power steps are by described radio network controller setting and send to described Node B.
Here, described terminal sends described power by described reversed shared channel or reverse common channel and increases/reduce and ask and/or the channel quality measurements of described forward shared channel, and wherein said reverse common channel can comprise Random Access Channel and/or Physical Random Access Channel.And the power at described forward shared channel increase/reduce ask and/or the report message of the channel quality measurements of described forward shared channel in, comprise cell ID and/or group service sign at least.
Described terminal is pressed the channel quality measurements of predetermined period to the described forward shared channel of described radio network controller timed sending; Perhaps described terminal compares this measured value and described the 3rd desired value, if the absolute value that both differ greater than first threshold, then sends to described radio network controller; Perhaps described radio network controller is controlled this measured value of described terminal to report by measuring control procedure utilization measurement control messages, and wherein, described predetermined period and/or described first threshold are by described radio network controller setting.
Described radio network controller is provided with one second threshold value, and adds up the number that participates in the described terminal of certain cluster multi call business in the sub-district; If described statistics is less than or equal to described second threshold value, then use described forward shared channel power controlled step; If greater than, then do not use described forward shared channel power controlled step.
Like this, utilize said method just to realize the control of the transmitting power of forward shared channel in trunked communication system and other the point-to-multipoint communication system and reversed shared channel, thereby can under the prerequisite that guarantees communication quality, realize the maximization of power system capacity.
The present invention is described in detail with detailed execution mode below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the frame structure schematic diagram of the DSCH Downlink Shared Channel in the TD-SCDMA system;
Fig. 2 is the flow chart of the Poewr control method of reversed shared channel of the present invention; And
Fig. 3 is the flow chart of the Poewr control method of forward shared channel of the present invention.
Embodiment
Next, will be example with TD-SCDMA (Time Division-Synchronous Code DivisionMultiple Access, the code division multiple access that the time-division is synchronous) technology trunking system, describe embodiments of the present invention in detail.
The TD-SCDMA group system comprises subscriber equipment (UE), i.e. terminal, and wireless access network (UTRAN), i.e. and network side, it comprises radio network controller (RNC) and Node B (Node B).In the TD-SCDMA trunked communication system, the cluster multi call business generally is that unit distributes shared channel with the sub-district, comprises reversed shared channel and forward shared channel.Power control to these two kinds of shared channels describes respectively below.
Fig. 2 is the Poewr control method flow chart of reversed shared channel of the present invention.Main for the power control of reversed shared channel by following 4 steps realization.
Equally, in configuration during second desired value, according to the difference of the reversed shared channel method of salary distribution, also can and adopt diverse ways.If only at speaker place cell allocation reversed shared channel, then network side sends to UE with second desired value when UE being set up and distribute reversed shared channel.And if reversed shared channel is set up in the sub-district that relates to for all group-calling services, then can adopt the mode of cluster broadcasting, when setting up, reversed shared channel second desired value is sent to all UE by the cluster broadcast channel; Certainly, for the promoter of group service, i.e. caller also can send second desired value to it setting up in the process of group calling.
In addition, RNC can also adjust second desired value, and sends it to Node B to carry out the renewal of desired value.After determining to reduce or to increase the transmitting power of terminal reversed shared channel, the order that Node B will reduce or increase the reversed shared channel transmitting power sends to terminal by forward shared channel.Figure 1 shows that the frame structure of TD-SCDMA forward shared channel; comprise successively: data symbol, TFCI (Transport Format Combination Indicator; the transformat combination indication) code word, midamble code, SS (Synchronization Symbol; synchronizing symbol) symbol, TPC (Transmitter PowerControl; transmitting power control) symbol, TFCI code word, data symbol and GP (Guard Period; protection is at interval), Node B comes transmitted power adjustment order by TPC symbol wherein.
So far, just realized control to the transmitting power of reversed shared channel.Next, will be in conjunction with the control of Fig. 3 explanation to the transmitting power of forward shared channel, main the going on foot by following 4 of this control realized.
Step 202, network side are determined the Initial Trans of forward shared channel, and begin to launch forward shared channel with Initial Trans.Specifically, RNC determines the Initial Trans of forward shared channel, and sends to Node B according to situations such as the 3rd desired value of step 201 configuration and current wireless environment and loads; Subsequently, the Initial Trans value emission forward shared channel of Node B to receive.
Specifically, carry out in the process at group service, after UE receives forward shared channel and measures its channel quality, UE can compare the 3rd desired value of measured value and RNC configuration, if the measured value of channel quality is less than its desired value and reached forward direction less than threshold value N21, illustrate that then channel quality or business datum are of poor quality, UE sends the request that increases the forward shared channel transmitting power to RNC; If this measured value is greater than desired value and reached forward direction greater than threshold value N22, illustrate that then channel quality or business datum quality meet the demands, UE sends to RNC and reduces the request of forward shared channel transmitting power, or does not send the power adjustment request of any forward shared channel to RNC; And if this measured value less than/greater than desired value but do not reach N21/N22, then UE does not send the power adjustment request of any forward shared channel to RNC.
Perhaps, UE can directly send to RNC with measured value.For example, UE can regularly send measured value to RNC according to predetermined period; Also measured value and the 3rd desired value can be compared,, otherwise just not report if the absolute value that both differ then sends this measured value to RNC greater than a first threshold; At this moment, can also control UE reporting measurement value by measuring control procedure utilization measurement control messages, measure the mode that control messages also adopts cluster broadcasting, send to all UE by the cluster broadcast channel by RNC.
In step 203, described cycle, first threshold, forward direction dispose by RNC greater than threshold value N22 less than threshold value N21 and/or forward direction, and the mode that adopts cluster to broadcast, send to all UE by the cluster broadcast channel, but, for the promoter of group service, i.e. caller also can send to this UE in group call establishment process.Wherein the default value of N21 and N22 is 0.
Should be noted that, UE can pass through reversed shared channel, also can pass through reverse common channel, as RACH (Random Access Channel) or PRACH (Physical Random Access Channel), send to RNC that forward shared channel transmitting power adjustment (reduce or increases) is asked or the report message of the channel quality measurements of forward shared channel.In addition, terminal should comprise cell ID and/or group service sign at least when sending above-mentioned report message.
For first kind of situation, after the request of the increase forward shared channel transmitting power that receives the UE transmission, RNC sends the order that increases the forward shared channel transmitting power according to cell ID in the request message and group service sign to Node B; Node B increases the transmitting power of forward shared channel according to order.It is noted that this order can comprise concrete transmission power level, this moment, Node B was just by this performance number emission forward shared channel; This order also can not comprise concrete transmission power level, and Node B increased step-length according to power pre-configured by RNC and that send to Node B and increased transmitting power this moment.In addition, when receiving the request of the increase forward shared channel transmitting power that a plurality of UE send simultaneously, RNC can increase the transmitting power of the forward shared channel of these UE according to the request that wherein increase is maximum.
Similarly, when receiving the request that reduces the forward shared channel transmitting power that UE sends, perhaps RNC does not receive the request of any adjustment forward shared channel transmitting power in the very first time of its configuration length, and RNC reduces the forward shared channel transmit power command according to cell ID and group service sign to Node B transmission; Node B reduces the transmitting power of forward shared channel according to order.It is noted that this order can comprise concrete transmission power level, this moment, Node B was just according to this value emission forward shared channel; This order also can not comprise concrete transmission power level, and this moment, Node B reduced transmitting power according to downward power steps pre-configured by RNC and that send to Node B.In addition, when receive simultaneously that a plurality of UE send reduce the request of reversed shared channel transmitting power the time, RNC can reduce the transmitting power of the forward shared channel of these UE according to the request that wherein decrease is maximum.
It is noted that if do not receive the request of any adjustment forward shared channel transmitting power in the very first time length of its configuration of RNC, also can not send any forward shared channel power adjustment commands according to cell ID and group service sign to Node B.For Node B, if in second time span, do not receive any increase and/or reduce the order of forward shared channel transmitting power, then reduce the transmitting power of forward shared channel according to the downward power steps of giving Node B by the RNC configuration concurrency by RNC configuration.
For second kind of situation, after the channel quality measurements that receives the forward shared channel that UE sends, RNC compares this measured value and the 3rd desired value that RNC stores according to cell ID in the message and group service sign.If measured value, illustrates promptly that channel quality or business datum are of poor quality less than desired value, then RNC sends the order that increases the forward shared channel transmitting power to Node B, and Node B increases the transmitting power of forward shared channel according to order.Can comprise concrete transmission power level in this order, also can not comprise.If comprise, then Node B is according to this performance number emission forward shared channel; If do not comprise, then Node B increases the transmitting power that step-length increases forward shared channel according to power pre-configured by RNC and that send to Node B.If RNC receives the forward shared channel quality measured values that a plurality of UE send simultaneously, and a plurality of UE measured values is arranged less than desired value, then RNC can be according to wherein needing to increase maximum transmitting powers that increases forward shared channel.
Similarly, if measured value is greater than desired value, promptly explanation is that channel quality meets the demands, perhaps RNC does not receive any forward shared channel quality measured values in the very first time of its configuration length, then reduce the forward shared channel transmit power command according to cell ID and group service sign to Node B transmission, Node B reduces the transmitting power of forward shared channel according to order.Can comprise concrete transmission power level in this order, also can not comprise.If comprise, then Node B is just by this performance number emission forward shared channel; If do not comprise, then Node B reduces the transmitting power of forward shared channel according to downward power steps pre-configured by RNC and that send to Node B.If RNC receives the channel quality measurements of the forward shared channel that a plurality of UE send simultaneously, and the measured value that a plurality of UE are arranged is greater than desired value, and then RNC can be according to wherein needing to reduce maximum transmitting powers that reduces forward shared channel.
It is noted that if RNC does not receive the channel quality measurements of any forward shared channel in the very first time of its configuration length, also can not send any forward shared channel power adjustment commands according to cell ID and group service sign to Node B.For Node B, if in second time span, do not receive anyly to increase and/or reduce the order of forward shared channel transmitting power, then reduce the transmitting power of this forward shared channel according to the downward power steps of giving Node B by the RNC configuration concurrency by RNC configuration.
In addition, RNC can also determine whether to adopt the Poewr control method of above-mentioned forward shared channel according to the number that participates in the UE of certain cluster multi call business in the sub-district that counts on.Be specially, RNC sets in advance one second threshold value N, and adds up in this sub-district the number M that sends the UE of the transmitting power adjustment request of forward shared channel or channel quality measurements to RNC.If M≤N, then RNC adopts said method to control the forward shared channel transmitting power of each UE in this sub-district; If M＞N, then RNC does not all carry out power control to the forward shared channel of each UE in this sub-district, and promptly RNC does not handle the transmitting power adjustment request message or the channel quality measurements message of the forward shared channel that receives from this sub-district.
Like this, just realized control to the transmitting power of forward shared channel.In addition, in foregoing forward direction/back in the Poewr control method of shared channel, the related various parameters that set in advance by RNC, increase/reduce step-length and threshold value N11/N12/N21/N22 etc. as the first/the second threshold value, cycle, the first/the second time span and power, can dynamically adjust by RNC.
Though should be pointed out that invention has been described by above-mentioned execution mode, yet the present invention also can have other numerous embodiments.Without departing from the spirit and scope of the present invention; those of ordinary skill in the art obviously can make various corresponding changes and distortion to the present invention, but these changes and distortion all should belong in the scope that claims of the present invention and equivalent thereof protect.
Claims (26)
1, the Poewr control method of shared channel in a kind of trunked communication system, described shared channel is between network side and terminal, comprise by a described terminal and after described network side mandate, send to the reversed shared channel of this network side and send to the forward shared channel of a plurality of described terminals by described network side as the speaker, described network side comprises radio network controller and Node B again, it is characterized in that described method comprises:
One reversed shared channel power controlled step comprises again:
Step 11, described Node B receive the signal of the described reversed shared channel of described terminal transmission, and measure the channel quality of this reversed shared channel, adjust scheme with this power of determining this reversed shared channel; And
Step 12, described terminal is adjusted scheme, the transmitting power of corresponding this reversed shared channel of adjustment according to the power in the described step 11; And,
One forward shared channel power controlled step comprises again:
Step 21, described terminal receives the signal of the described forward shared channel of described Node B transmission, and measure the channel quality of this forward shared channel, described terminal and/or described radio network controller determine that according to the channel quality measurements of this forward shared channel the power of this forward shared channel adjusts scheme; And
Step 22, described network side are adjusted the transmitting power of corresponding this forward shared channel of adjustment of scheme according to the power in the described step 21.
2, method according to claim 1 is characterized in that, also comprises before described step 11, and described radio network controller disposes first desired value and second desired value of described reversed shared channel, and sends to described Node B and described terminal respectively.
3, method according to claim 2 is characterized in that, described terminal is determined the Initial Trans of described reversed shared channel according to described second desired value, and launches described reversed shared channel with this Initial Trans.
4, method according to claim 2, it is characterized in that, described step 11 comprises, described Node B is compared the channel quality measurements of described reversed shared channel with described first desired value, if this measured value is less than described first desired value and reach oppositely less than threshold values, then increase order to described terminal transmitted power by described forward shared channel, if this measured value is greater than described first desired value and reach oppositely greater than threshold values, then reduce order to described terminal transmitted power by described forward shared channel, wherein, described oppositely greater than threshold value and/or describedly oppositely give described Node B by described radio network controller configuration concurrency less than threshold value.
5, method according to claim 1 is characterized in that, described reversed shared channel is set up in the sub-district that described network side relates to for all group services, perhaps only sets up described reversed shared channel for the sub-district at described speaker place.
6, method according to claim 1 is characterized in that, in the described step 12, described terminal is further for using the terminal of this reversed shared channel.
7, method according to claim 1 is characterized in that, also comprises before described step 21, and the configuration of described radio network controller is used for the 3rd desired value of described forward shared channel, with its preservation and send to described terminal.
8, method according to claim 7, it is characterized in that, described radio network controller is determined the Initial Trans of described forward shared channel and sends to described Node B that described Node B is launched the signal of described forward shared channel to described terminal according to this Initial Trans according to described the 3rd desired value.
9, method according to claim 7, it is characterized in that, described step 21 comprises, described terminal is compared the channel quality measurements of described forward shared channel with described the 3rd desired value, if this measured value is less than described the 3rd desired value and reach forward direction less than threshold value, then increase request to described radio network controller transmitted power; If greater than described the 3rd desired value and reach forward direction, then reduce request, or do not send any described power and increase/reduce request to described radio network controller transmitted power greater than threshold value.
10, method according to claim 9, it is characterized in that, described step 22 comprises that described radio network controller increases request according to the described power that receives, and the power that sends described forward shared channel to the described Node B corresponding with this terminal increases order.
11, method according to claim 9, it is characterized in that, described step 22 comprises that described radio network controller sends the decrease commands of described forward shared channel according to the described power reduction request that receives to the described Node B corresponding with this terminal.
12, method according to claim 9, it is characterized in that, described step 22 comprises, if receiving any described power in very first time length, described radio network controller do not increase/reduces request, then send the decrease commands of described forward shared channel to the described Node B corresponding with this terminal, or not sending any order, wherein said very first time length is by described radio network controller setting.
13, according to claim 10 or 12 described methods, it is characterized in that, in described step 22, when receiving described power that a plurality of described terminals send simultaneously when increasing request, described radio network controller is handled according to the request that wherein increase is maximum.
14, according to claim 11 or 12 described methods, it is characterized in that, in described step 22, when the described power reduction request that receives simultaneously that a plurality of described terminals send, described radio network controller is handled according to the request that wherein decrease is maximum.
15, method according to claim 7 is characterized in that, described step 21 comprises that described terminal sends the channel quality measurements of described forward shared channel to described radio network controller.
16, method according to claim 15, it is characterized in that, described step 21 also comprises, the channel quality measurements of the more described forward shared channel of described radio network controller and described the 3rd desired value, if this measured value is less than described the 3rd desired value and reach forward direction less than threshold value, then send the power increase order of described forward shared channel to the described Node B corresponding with this terminal, if this measured value is greater than described the 3rd desired value and reach forward direction greater than threshold value, then send the decrease commands of described forward shared channel to the described Node B corresponding with this terminal.
17, method according to claim 15, it is characterized in that, described step 21 also comprises, if described radio network controller is not received the channel quality measurements of any described forward shared channel in very first time length, then send the decrease commands of described forward shared channel to the described Node B corresponding with this terminal, perhaps do not send any order, wherein said very first time length is by described radio network controller setting.
18, according to claim 16 or 17 described methods, it is characterized in that, in described step 21, when receiving the channel quality measurements of the described forward shared channel that a plurality of described terminals send simultaneously, described radio network controller is according to wherein maximum the handling of increase/decrease.
19, according to claim 10,12,16 or 17 described methods, it is characterized in that, described step 22 also comprises, comprise concrete transmission power level if the power of the described forward shared channel that described radio network controller sends increases in the order, then described Node B is launched described forward shared channel according to this concrete transmission power level; If do not comprise concrete transmission power level, then described Node B increases the transmitting power that step-length is come the current described forward shared channel of corresponding adjustment by the power that described radio network controller configuration concurrency send.
20, according to claim 11,12,16 or 17 described methods, it is characterized in that, described step 22 also comprises, if comprise concrete transmission power level in the decrease commands of the described forward shared channel that described radio network controller sends, then described Node B is launched described forward shared channel according to this concrete transmission power level; If do not comprise concrete transmission power level, the transmitting power that the downward power steps that then described Node B is sent by described radio network controller configuration concurrency is come the current described forward shared channel of corresponding adjustment.
21, according to claim 10,11,12,16 or 17 described methods, it is characterized in that, if confiscating the power of any described forward shared channel in second time span, described Node B increases and/or reduces order, then come the corresponding transmitting power that reduces described forward shared channel according to downward power steps, wherein said second time span and described downward power steps are by described radio network controller setting and send to described Node B.
22, method according to claim 9, it is characterized in that, described terminal sends described power by described reversed shared channel or reverse common channel and increases/reduce and ask and/or the channel quality measurements of described forward shared channel, and wherein said reverse common channel comprises Random Access Channel and/or Physical Random Access Channel.
23, method according to claim 13, it is characterized in that, described terminal sends described power by described reversed shared channel or reverse common channel and increases/reduce and ask and/or the channel quality measurements of described forward shared channel, and wherein said reverse common channel comprises Random Access Channel and/or Physical Random Access Channel.
24, according to claim 9 or 15 described methods, it is characterized in that, power at described forward shared channel increase/reduce ask and/or the report message of the channel quality measurements of described forward shared channel in, comprise cell ID and/or group service sign at least.
25, method according to claim 15 is characterized in that, described terminal is pressed the channel quality measurements of predetermined period to the described forward shared channel of described radio network controller timed sending; Perhaps described terminal compares this measured value and described the 3rd desired value, if the absolute value that both differ greater than first threshold, then sends to described radio network controller; Perhaps described radio network controller is controlled this measured value of described terminal to report by measuring control procedure utilization measurement control messages, and wherein, described predetermined period and/or described first threshold are by described radio network controller setting.
26, method according to claim 1 is characterized in that, further comprises, described radio network controller is provided with one second threshold value, and adds up the number that participates in the described terminal of certain cluster multi call business in the sub-district; If described statistics is less than or equal to described second threshold value, then use described forward shared channel power controlled step; If greater than, then do not use described forward shared channel power controlled step.
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| US8452297B2 (en) * | 2009-06-29 | 2013-05-28 | Htc Corporation | Method of random access channel optimization and related communication device |
| CN103501525B (en) * | 2013-09-23 | 2017-03-15 | 北京矿冶研究总院 | Networking method and communication system of emergency communication network for mining area |
| CN107295483A (en) * | 2016-03-31 | 2017-10-24 | 展讯通信（上海）有限公司 | A kind of base station and its group exhale the transmission method of data |
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