CN102413556A - Multi-transmission-channel power control method and terminal - Google Patents
Multi-transmission-channel power control method and terminal Download PDFInfo
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- CN102413556A CN102413556A CN2011104347671A CN201110434767A CN102413556A CN 102413556 A CN102413556 A CN 102413556A CN 2011104347671 A CN2011104347671 A CN 2011104347671A CN 201110434767 A CN201110434767 A CN 201110434767A CN 102413556 A CN102413556 A CN 102413556A
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Abstract
The embodiment of the invention discloses a multi-transmission-channel power control method, comprising the following steps: measuring the block error rate of a transmission channel, regulating the signal interference ratio (SIR) of the transmission channel according to the block error rate of the transmission channel, and determining a first SIR according to the regulated SIR of the transmission channel; acquiring an SIR protection value of the transmission channel with SIR protection and selecting the maximum value from the acquired SIR protection vale and the first SIR to serve as the target SIR of output of outer ring power control; and measuring the SIR of a physical channel, generating a transmission power control (TPC) command serving as output of the inner ring power control according to the size relation between the measured SIR and the target SIR, and sending the TPC command to a network side. The embodiment of the invention also discloses a terminal. By using the invention, the transmission quality of the transmission channel can be protected.
Description
Technical field
The present invention relates to communication technical field, relate in particular to a kind of Poewr control method and terminal of many transmission channels.
Background technology
In GSM; For example: WCDMA (Wideband Code Division Multiple Access, WCDMA) system, the main purpose of power control is: under the prerequisite of the communication quality that guarantees the terminal; Farthest reduce the transmitting power of base station; Improve the utilance of power, increase the capacity of base station, reduce interference other-end.At present, in GSM, control comprises to the power of many transmission channels: inner loop power control is controlled with exterior ring power.
Wherein, in exterior ring power control, the mistake piece number and the total block data of the data in each transmission channel detected at the terminal respectively, and according to missing the BLER (Block Error Rate, Block Error Rate) that piece number and total block data obtain each transmission channel; The target BLER of each transmission channel that then BLER of each transmission channel is issued with the net side respectively compares; Obtain being directed against respectively SIR (the Signal to Interference Ratio of each bar transmission channel; Signal and interference ratio; Be called for short " signal interference ratio "); Particularly, as the BLER of transmission channel A in the current power control cycle during less than the target BLER of this transmission channel A of issuing of net side, then the SIR of transmission channel A is that the target SIR as exterior ring power control output deducts an adjustment step-length in the last power control cycle; During the target BLER of this transmission channel A that issues greater than the net side at the BLER in current power control cycle as transmission channel A, then the SIR of transmission channel A be last power control system in the cycle target SIR as exterior ring power control output add an adjustment step-length; From the SIR of each bar transmission channel, select the target SIR of maximum then as the final output of exterior ring power control.
Inner loop power control is the SIR through the physical channel, obtains the sir measurement value, and physical channel can define with specific carrier frequency, scrambler, channel code, start and end time here, and transmission channel can be mapped on the physical channel; The target SIR of sir measurement value and exterior ring power control output is compared; And according to comparative result generation TPC (Transmission Power Control; Through-put power control) order with issuing the net side in the TPC order, is netted the descending transmitting power of side thereby control.
In the above-mentioned Poewr control method; Because exterior ring power control is that the Block Error Rate of the transmission channel that data are arranged is measured; And then confirm target SIR according to Block Error Rate; Therefore target SIR can guarantee to have in the current power control cycle transmission quality of the transmission channel of data, can not guarantee in the current power control cycle, not have the transmission quality of the transmission channel of data.For example: suppose to exist two transmission channel A and B; Transmission channel A all has data in each power control period; And transmission channel B need experience just data once of a plurality of power control periods, supposes simultaneously to be lower than in order to guarantee the transmission quality of transmission channel B for the transmitting power of the required base station of transmission quality that guarantees transmission channel A; Therefore in most power control period; Target SIR will be along with the Block Error Rate convergence of transmission channel A; Thereby will make the transmitting power of base station drop to the stage that just can guarantee the transmission quality of transmission channel A gradually; And if have this moment the data need be through transmission channel B when transmission; To drop to the stage of the transmission quality that can not guarantee transmission channel B owing to the transmitting power of base station, thereby cause Block Error Rate increase, influence the transmission quality of transmission channel B through the data of transmission channel B transmission.
Summary of the invention
Embodiment of the invention technical problem to be solved is, a kind of Poewr control method and terminal of many transmission channels is provided, and can improve the transmission quality of many transmission channels.
In order to solve the problems of the technologies described above, the embodiment of the invention provides a kind of Poewr control method of many transmission channels, comprising:
Measure the Block Error Rate of transmission channel, and adjust the signal-to-jamming ratio SIR of said transmission channel, and, determine a SIR according to the adjusted SIR of said transmission channel according to the Block Error Rate of said transmission channel;
Obtain the SIR protection value of the transmission channel that is provided with SIR protection, and from a said SIR protection value of obtaining and a said SIR, select maximum, as the target SIR of the output of exterior ring power control;
The SIR of physical channel, and, generate through-put power control TPC order as the output of inner loop power control according to the magnitude relationship of SIR that records and target SIR, and with issuing network side in the said TPC order.
Correspondingly, the embodiment of the invention also provides a kind of terminal, comprising:
The one SIR determination module is used to measure the Block Error Rate of transmission channel, and adjusts the signal-to-jamming ratio SIR of said transmission channel according to the Block Error Rate of said transmission channel, and according to the adjusted SIR of said transmission channel, determines a SIR;
The target SIR determination module is used to obtain the SIR protection value of the transmission channel that is provided with SIR protection, and from a said SIR protection value of obtaining and a said SIR, selects maximum, as the target SIR of the output of exterior ring power control;
TPC generates and sending module, is used for the SIR of physical channel, and according to the magnitude relationship of the SIR that records and target SIR, generates the through-put power control TPC order as the output of inner loop power control, and said TPC is ordered issue network side.
Embodiment of the present invention embodiment has following beneficial effect:
The present invention is owing to can be provided with the SIR protection to transmission channel; For example: the SIR protection is set for important transmission channel; And according to the SIR protection value of the transmission channel that is provided with the SIR protection and definite jointly the target SIR of confirming by the Block Error Rate of the transmission channel of measuring of a SIR as exterior ring power control output; Thereby make the TPC order of issuing network side on final can guarantee to be provided with the transmission quality of the transmission channel of SIR protection, thereby improve the transmission quality of many transmission channels.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic flow sheet of first embodiment of the Poewr control method of many transmission channels provided by the invention;
Fig. 2 is the schematic flow sheet of second embodiment of the Poewr control method of many transmission channels provided by the invention;
Fig. 3 is about the schematic flow sheet of first embodiment of step S22 among Fig. 2;
Fig. 4 is about the schematic flow sheet of second embodiment of step S22 among Fig. 2;
Fig. 5 is the structural representation of first embodiment at terminal provided by the invention;
Fig. 6 is the structural representation of second embodiment at terminal provided by the invention;
Fig. 7 is about the structural representation of first embodiment of SIR protection value adjusting module among Fig. 6;
Fig. 8 is about the structural representation of second embodiment of SIR protection value adjusting module among Fig. 6.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Please refer to Fig. 1, is the schematic flow sheet of first embodiment of the Poewr control method of many transmission channels of the present invention, and said method comprises:
Step S11 measures the Block Error Rate of transmission channel, and adjusts the SIR of said transmission channel according to the Block Error Rate of said transmission channel, and according to the adjusted SIR of said transmission channel, determines a SIR.
Wherein, step S11 is in the current power control cycle, having the Block Error Rate of the transmission channel of data to measure, in the current power control cycle, can having one or more transmission channel that data are arranged; Have when a plurality of as the transmission channel of data, step S11 measures the Block Error Rate of a plurality of transmission channels, and then adjusts the SIR of said a plurality of transmission channels respectively, finally determines a SIR by the adjusted SIR of said a plurality of transmission channels.Need to prove that according to Block Error Rate the SIR of transmission channel being adjusted can be a kind of adjustment of expection, rather than actual adjustment, its objective is in order to obtain a SIR.
Particularly, when step S11 records the Block Error Rate of transmission channel, the target Block Error Rate of Block Error Rate that records and transmission channel is compared, and according to the SIR of comparative result adjustment transmission channel.For example, suppose that the target Block Error Rate of the transmission channel A that the net side issues is 10% for transmission channel A; If in the current power control cycle, the Block Error Rate that records transmission channel A is 8%, and so because 8%＜10%, so the SIR of transmission channel A is that the target SIR as the output of exterior ring power control reduces an adjustment step-length in the last power control period; If in the current power control cycle, the Block Error Rate that records transmission channel A is 12%, and so because 12%＞10%, so the SIR of transmission channel A is that the target SIR as the output of exterior ring power control increases an adjustment step-length in the last power control period.Need to prove that the adjustment step-length can be provided with precision according to regulating the speed of transmission channel A in advance; The adjustment step-length of different transmission channels can be identical or different; For same transmission channel, can increase or reduce a plurality of adjustment step-lengths on the basis of the target SIR of the output of in last once power control period, controlling according to the concrete magnitude relationship of Block Error Rate and target Block Error Rate as exterior ring power.
Further, after the SIR of a plurality of transmission channels is adjusted, from adjusted SIR, select maximum as a SIR, to guarantee the transmission quality of each transmission channel in a plurality of transmission channels.
Step S12 obtains the SIR protection value of the transmission channel that is provided with SIR protection, and from a said SIR protection value of obtaining and a said SIR, selects maximum, as the target SIR of the output of exterior ring power control.
Wherein, can to one or more transmission channels the SIR protection be set in advance.If there are a plurality of transmission channels to be provided with SIR protection, obtain the SIR protection value that each is provided with the transmission channel of SIR protection so respectively, and from a plurality of SIR protection values obtained and a SIR, select the target SIR of maximum as the output of exterior ring power control.For example hypothesis has transmission channel A, B and C; Transmission channel A and B have data in the current power control cycle; Transmission channel C in the current power control cycle, does not have data but transmission channel C is provided with the SIR protection; From the SIR protection value of the SIR that determines by transmission channel A and B and transmission channel C, select the target SIR of maximum so as exterior ring power control output; Because transmission channel C is provided with SIR protection, though therefore in the current power control cycle transmission channel C do not have data, if transmission channel C has data in power control period next time, then can guarantee the transmission quality of transmission channel C.
Step S13, the SIR of physical channel, and, generate through-put power control TPC order as the output of inner loop power control according to the magnitude relationship of SIR that records and target SIR, and with issuing network side in the said TPC order.
Particularly, when the SIR that records is higher than target SIR, then generate the TPC order that control net side increases transmitting power; When the SIR that records is lower than target SIR, then generate the TPC order that control net side reduces transmitting power.Because target SIR is confirmed with the SIR protection value of the transmission channel that is provided with the SIR protection by a SIR jointly; Therefore step S13 orders the TPC that generates and issues after the net side; With making the net side in next power control period, can either guarantee in the current power control cycle, to have the required transmitting power of transmission channel of data, can guarantee to be provided with the required transmitting power of transmission channel that SIR protects again.
The embodiment of the invention is owing to can be provided with the SIR protection to transmission channel; For example: the SIR protection is set for important transmission channel; And according to the SIR protection value of the transmission channel that is provided with the SIR protection and the common target SIR of determining by the Block Error Rate of each transmission channel of measuring of confirming as the output of exterior ring power control of a SIR; Thereby make the TPC order of issuing network side on final can make the transmitting power of net side can guarantee to be provided with the transmission quality of the transmission channel of SIR protection, no matter and whether the transmission channel that is provided with SIR has data in the current power control cycle.
Please refer to Fig. 2, is the schematic flow sheet of second embodiment of the Poewr control method of many transmission channels of the present invention, and said method comprises:
Step S21 measures the Block Error Rate of transmission channel, and adjusts the SIR of said transmission channel according to the Block Error Rate of said transmission channel, and according to the SIR of said transmission channel, determines a SIR.
This step is identical with the step S11 of Fig. 1, does not give unnecessary details at this.
Step S22 for the transmission channel that is provided with the SIR protection, according to the said data cases that is provided with the transmission channel of SIR protection, adjusts the said SIR protection value that is provided with the transmission channel of SIR protection.
Particularly, being provided with the transmission channel of SIR protection among the step S22 can be one or more.When the transmission channel that is provided with SIR protection has when a plurality of; Be provided with the transmission channel of SIR protection for each; Can according to its whether data are arranged in the current power control cycle and when data are arranged, whether situation such as error code are arranged, dynamically adjust its SIR protection value.For example: suppose that transmission channel A is the transmission channel that is provided with the SIR protection, if transmission channel A has data and error code is arranged in the current power control cycle, can be adjusted into the SIR protection value of transmission channel A (current SIR protection value+adjustment step-length) so.
Step S23 obtains the SIR protection value of the transmission channel that is provided with SIR protection, and from the SIR protection value obtained and a SIR, selects maximum, as the target SIR of the output of exterior ring power control.
Need to prove that here the SIR protection value of obtaining in this step is meant the SIR protection value of obtaining through the transmission channel of the adjusted SIR of being provided with of step S22 protection, in this step among remainder and Fig. 1 step S12 identical, do not give unnecessary details at this.
Step S24, the SIR of physical channel, and, generate through-put power control TPC order as the output of inner loop power control according to the magnitude relationship of SIR that records and target SIR, and with issuing network side in the said TPC order.
Step S13 is identical among this step and Fig. 1, does not give unnecessary details at this.
Present embodiment is for the transmission channel that is provided with the SIR protection; According to its data cases in the current power control cycle; Adjust its SIR protection value, thereby can SIR protection value be adjusted to ideal, suitable degree, avoid because to be provided with the excessive transmitting power of netting side that causes of SIR protection value of transmission channel of SIR protection higher; Perhaps because to be provided with the SIR protection value of transmission channel of SIR protection too small, and can not play the effect of protecting transmission channel.Below in conjunction with Fig. 3 and Fig. 4, above-mentioned step S22 is explained more specifically.
Please refer to Fig. 3, be among Fig. 2 about the schematic flow sheet of first embodiment of step S22, said step S22 comprises:
Step S31, for the transmission channel that is provided with the SIR protection, when the transmission channel of the said SIR of being provided with protection had data and do not have error code, whether the SIR protection value of judging the transmission channel that the said SIR of being provided with protects was greater than a SIR.
Wherein, a SIR is meant the SIR that step S21 determines among Fig. 2.Particularly, be example with the transmission channel A that is provided with SIR protection, if transmission channel A has data and does not have error code in the current power control cycle, so when the SIR of a transmission channel A protection value＜SIR, execution in step S32 then, otherwise execution in step S33.
Step S32 detects the poor of a SIR and said SIR protection value.
Particularly, when detecting the threshold value of (a SIR-SIR protection value)＞predetermined, execution in step S33; When detecting the protection value of (a SIR-SIR protection value)＜predetermined; Execution in step S34 need to prove here, and predetermined threshold value can be provided with in advance; Be in order to guarantee that SIR protection value can not be lower than very much a SIR downwards, the degree that promptly is used for SIR protection value is lower than a SIR is controlled.
Step S33 reduces an adjustment step-length, process ends with said SIR protection value.
Particularly; With transmission channel A is example; When the SIR of a transmission channel A protection value＞SIR; Perhaps during the threshold value of SIR protection value＜SIR of transmission channel A but (a SIR-SIR protection value)＞predetermined, the SIR protection value of transmission channel A is adjusted into (current SIR protection value-adjustment step-length).
Step S34 is changed to a SIR with said SIR protection value and deducts predetermined threshold value, process ends.
Particularly; With transmission channel A is example; The SIR protection value of transmission channel A is adjusted into (a SIR-threshold value), and this is in the current power control cycle that transmission channel A has data but when not having error code, when SIR protection value has surpassed threshold value less than a SIR and SIR protection value less than the degree of a SIR; Then SIR protection value is adjusted into (a SIR-threshold value), falls too lowly to avoid SIR protection value.
When present embodiment has data and do not have error code at transmission channel, the SIR protection value of transmission channel is adjusted, avoided SIR protection value to establish De Taigao, and can not under the prerequisite that guarantees transmission quality, farthest reduce the emissivity of net side.
Please refer to Fig. 4, is the schematic flow sheet of second embodiment of step S22 among Fig. 2, and said step S22 comprises:
Step S41; For the transmission channel that is provided with the SIR protection; When being provided with the transmission channel free of data of SIR protection, judge whether to start timer when said, the transmission channel that said timer is used to write down the said SIR of being provided with protection does not have the time of data continuously.
Particularly, if be not activated timer, then execution in step S45: start timer, do not have the time of data with the transmission channel of the said SIR of the being provided with protection of opening entry continuously; If started timer, then execution in step S42.Need to prove and since timer be used for recording setting the transmission channel of SIR protection do not have time of data continuously, therefore in the timing course of timer, when the transmission channel that is provided with the SIR protection has data, with the timer zero clearing.Also need explain to be have the corresponding timer of a plurality of, then different transmission channels that is provided with the SIR protection different if be provided with the transmission channel of SIR protection.
Step S42 judges whether the time of timer record has reached the protection duration of the transmission channel of the said SIR of being provided with protection.
Particularly, the protection duration of supposing transmission channel A is T, and it is t that the transmission channel A of timer record does not have the time of data continuously, when T＜t, forwards step S43 to so, when T＞t, and execution in step S44.
Step S43 is changed to a SIR with the SIR protection value of the transmission channel of the said SIR of being provided with protection and deducts predetermined threshold value.Here, be example with transmission channel A, the SIR protection value of transmission channel A is changed to (a SIR-threshold value).
Step S45 keeps the said SIR protection value that is provided with the transmission channel of SIR protection, to continue that the transmission channel of the said SIR of being provided with protection is carried out the SIR protection.
Present embodiment; Each is provided with the transmission channel of SIR protection; When it does not have the time of data to surpass the protection duration continuously; Then its SIR protection value is set to the difference of a SIR and predetermined threshold value, supspending the protection to this transmission channel, thereby avoids coming data frequency too low or just do not have a unnecessary protection of the transmission channel of data for some at all; Need to prove that here SIR protection value with transmission channel is changed to a SIR and deducts predetermined threshold value and just supspend a kind of execution mode to the protection of transmission channel, present embodiment does not limit concrete implementation.
The foregoing description adopts the mode of method flow that the present invention has been carried out setting forth for example, and below in conjunction with accompanying drawing, to introducing corresponding to the terminal of said method flow process, this terminal can be equipment such as mobile phone or personal digital assistant.
Please refer to Fig. 5, is the structural representation of first embodiment at terminal of the present invention, and said terminal 5 comprises: a SIR determination module 51, target SIR determination module 52 and TPC generate and sending module 53.
Wherein, a SIR determination module 51 is used to measure the Block Error Rate of transmission channel, and adjusts the SIR of said transmission channel according to the Block Error Rate of said transmission channel, and and according to the adjusted SIR of said transmission channel, determine a SIR.
Wherein, In the current power control cycle, there is the transmission channel of data can have one or more; The one SIR determination module 51 is used for having the Block Error Rate of the transmission channel of data to measure to one or more; Have when a plurality of as the transmission channel of data particularly, a SIR determination module 51 is used for the Block Error Rate of a plurality of transmission channels is measured, and adjusts the SIR of said a plurality of transmission channels respectively according to the Block Error Rate of said a plurality of transmission channels.Need to prove that according to Block Error Rate the SIR of each transmission channel being adjusted is a kind of adjustment of expection, rather than actual adjustment, its objective is in order to obtain a SIR.
Particularly, when a SIR determination module 51 records the Block Error Rate of transmission channel, the target Block Error Rate of Block Error Rate that records and transmission channel is compared, and according to the SIR of comparative result adjustment transmission channel.For example: transmission channel A is arranged, and the target Block Error Rate of this transmission channel A that the net side issues is 10%; In the current power control cycle, if the Block Error Rate that records transmission channel A is 8%, so because 8%＜10%, then the SIR of transmission channel A is that the target SIR as the output of exterior ring power control reduces an adjustment step-length in the last power control period; In the current power control cycle; If recording the Block Error Rate of transmission channel A is 12%; So because 12%＞10%; The SIR of transmission channel A is that the target SIR as the output of exterior ring power control increases an adjustment step-length in the last power control period, wherein adjust step-length can according to transmission channel A regulate the speed and precision is provided with in advance.Need to prove that the adjustment step-length of different transmission channels can be identical, also can be different; Same transmission channel can increase or reduce a plurality of adjustment step-lengths according to the concrete magnitude relationship of Block Error Rate and target Block Error Rate on the basis of the target SIR of the output of in last once power control period, controlling as exterior ring power.
Further, after the SIR of a plurality of transmission channels is adjusted, from adjusted SIR, select maximum as a SIR, with the transmission quality that guarantees that each has the transmission channel of data.
Target SIR determination module 52 is used to obtain the SIR protection value of the transmission channel that is provided with SIR protection, and from the SIR protection value obtained and a SIR, selects maximum, as the target SIR of the output of exterior ring power control.
Wherein, can to one or more transmission channels the SIR protection be set in advance; If there are a plurality of transmission channels to be provided with SIR protection, obtain the SIR protection value that each is provided with the transmission channel of SIR protection so respectively, and from a plurality of SIR protection values obtained and a SIR, select the target SIR of maximum as the output of exterior ring power control; For example: suppose to have transmission channel A, B and C; Transmission channel A and B have data in the current power control cycle; Transmission channel C in the current power control cycle, does not have data but transmission channel C is provided with SIR protection, so then from the SIR protection value of the SIR that determined by transmission channel A and B and transmission channel C, selects maximum to control the target SIR of exporting as exterior ring power; Here because transmission channel C is provided with the SIR protection; Therefore,, then can guarantee the transmission quality of transmission channel C if transmission channel C has data in power control period next time though transmission channel C does not have data in the current power control cycle.
TPC generates and sending module 53, the SIR of physical channel, and according to the magnitude relationship of the SIR that records and target SIR, and the through-put power control TPC that generates as the output of inner loop power control orders, and said TPC is ordered issue network side.
Particularly, when the SIR that records is higher than target SIR, then generate the TPC order that control net side increases transmitting power; When the SIR that records is lower than target SIR, then generate the TPC order that control net side reduces transmitting power.Because target SIR is confirmed with the SIR protection value of the transmission channel that is provided with the SIR protection by a SIR jointly; Therefore TPC generation and sending module 53 are ordered the TPC that generates and are issued after the net side; With making the net side in next power control period, can either guarantee in the current power control cycle, to have the required transmitting power of transmission channel of data, can guarantee to be provided with the required transmitting power of transmission channel that SIR protects again.
The embodiment of the invention is owing to can be provided with the SIR protection to transmission channel; For example: the SIR protection is set for important transmission channel; And according to the SIR protection value of the transmission channel that is provided with the SIR protection and the common target SIR of determining by the Block Error Rate of each transmission channel of measuring of confirming as the output of exterior ring power control of a SIR; Thereby make the TPC order of issuing network side on final can make the transmitting power of net side can guarantee to be provided with the transmission quality of the transmission channel of SIR protection, no matter and whether the transmission channel that is provided with SIR has data in the current power control cycle.
Please refer to Fig. 6, is the structural representation of second embodiment at terminal of the present invention, and the terminal 5 among Fig. 6 is compared with the terminal 5 among Fig. 5, and it also comprises: SIR protection value adjusting module 54.
Wherein, SIR protection value adjusting module 54 is used for for the transmission channel that is provided with the SIR protection, according to the said data cases that is provided with the transmission channel of SIR protection, adjusts the said SIR protection value that is provided with the transmission channel of SIR protection.Here; Because 54 pairs of SIR protection value adjusting modules are provided with the SIR protection value of the transmission channel of SIR protection and adjust; Therefore target SIR determination module 52 is to obtain through SIR protection value adjusting module 54 adjusted SIR protection values when obtaining the protection value of the transmission channel that is provided with the SIR protection.
Particularly; In one embodiment; Of Fig. 7, SIR protection value adjusting module 54 comprises: first judging unit 71, detecting unit 72, a SIR protection value adjustment unit 73, the 2nd SIR protection value adjustment unit 74 and Three S's IR protection value adjustment unit 75.
Wherein, Three S's IR protection value adjustment unit 74 is used for being provided with the transmission channel that SIR protects for each, when said transmission channel has data and error code is arranged, with an adjustment of the SIR protection value increase step-length of said transmission channel; For example: suppose that transmission channel A is the transmission channel that is provided with the SIR protection, if transmission channel A has data and error code is arranged in the current power control cycle, can be adjusted into the SIR protection value of transmission channel A (current SIR protection value+adjustment step-length) so.
First judging unit 71 is used for for the transmission channel that is provided with the SIR protection, and when the transmission channel of the said SIR of being provided with protection had data and do not have error code, whether the SIR protection value of judging the transmission channel that the said SIR of being provided with protects was greater than a SIR.
Wherein, a SIR is meant a SIR who is determined by a SIR determination module 51.Particularly; Transmission channel A to be provided with the SIR protection is an example; If transmission channel A has data and does not have error code in the current power control cycle; When the SIR of a transmission channel A protection value＜SIR, then trigger and carry out detecting unit 72 so, carry out a SIR protection value adjustment unit 73 otherwise trigger.
Detecting unit 72 is used in the judged result of first judging unit for not the time, detects SIR protection value poor of a SIR and said transmission channel.
Particularly, when detecting unit 72 detects the threshold value of (a SIR-SIR protection value)＞predetermined, trigger and carry out a SIR protection value adjustment unit 73; When detecting unit 72 detects the protection value of (a SIR-SIR protection value)＜predetermined; Trigger and carry out the 2nd SIR protection value adjustment unit 74; Need to prove here; Predetermined threshold value can be provided with in advance, and its effect is in order to guarantee that S IR protection value can not be lower than very much a SIR downwards, and the degree that promptly SIR protection value is lower than a SIR is controlled.
The one SIR protection value adjustment unit 73; Be used for when the judged result of first judging unit 71 when being; When perhaps detecting unit 72 detects the threshold value of (a SIR-SIR protection value)＞predetermined, the SIR protection value of the transmission channel of the said SIR of being provided with protection is reduced an adjustment step-length.
Particularly; With transmission channel A is example; When the SIR of a transmission channel A protection value＞SIR; Perhaps during the threshold value of SIR protection value＜SIR of transmission channel A but (a SIR-SIR protection value)＞predetermined, the SIR protection value of transmission channel A is adjusted into (SIR protection value-adjustment step-length).
The 2nd SIR protection value adjustment unit 74 is used for when detecting unit 72 detects the protection value of (a SIR-SIR protection value)＜predetermined, the transmission channel SIR protection value of the said SIR of being provided with protection is changed to a SIR deducts predetermined threshold value.
Particularly; With transmission channel A is example; The 2nd SIR protection value adjustment unit 74 is adjusted into (a SIR-threshold value) with the SIR protection value of transmission channel A, and this is in the current power control cycle that transmission channel A has data but when not having error code, when SIR protection value has surpassed threshold value less than a SIR and SIR protection value less than the degree of a SIR; Then SIR protection value is adjusted into (a SIR-threshold value), falls too lowly to avoid SIR protection value.
Further; In another embodiment; As shown in Figure 8, SIR protection value adjusting module 54 comprises: second judging unit 81, the 3rd judging unit 82, the 4th SIR protection adjustment unit 83, the 5th SIR protection value adjustment unit 84 and timer start unit 85.
Wherein, second judging unit 81 is used for for the transmission channel that is provided with SIR protection, when said transmission channel free of data, judges whether to start timer, and the transmission channel that said timer is used to write down the said SIR of being provided with does not have the time of data continuously.
Particularly, if be not activated timer, then carry out timer start unit 85, this timer start unit 85 is used to start timer, does not have the time of data continuously with the said transmission channel of opening entry; If started timer, then trigger and carry out the 3rd judging unit 82.Need to prove here and since timer be used for recording setting the transmission channel of SIR do not have time of data continuously, therefore in the timing course of timer, when the transmission channel that is provided with SIR has data, with the timer zero clearing.
The 3rd judging unit 82, be used for when the judged result of second judging unit for not the time, judge whether time that timer writes down has reached the protection duration of the transmission channel of the said SIR of being provided with.
Particularly, the protection duration of supposing transmission channel A is T, and it is t that the transmission channel A of timer record does not have the time of data continuously; So when T＜t; Trigger to carry out the 4th SIR protection value adjustment unit 83, when T＞t, trigger and carry out the 5th SIR protection value adjustment unit 85.
The 4th SIR protection value adjustment unit 83, be used for when the judged result of the 3rd judging unit 82 when being, the SIR protection value of the transmission channel of the said SIR of being provided with is changed to a SIR deducts predetermined threshold value.Here, be example with transmission channel A, the 4th SIR protection value adjustment unit 83 is changed to (a SIR-threshold value) with the SIR protection value of transmission channel A.
The 5th SIR protection value adjustment unit 85, be used for when the judged result of the 3rd judging unit 82 for not the time, keeps the said SIR protection value that is provided with the SIR transmission channel, protect to continue that said transmission channel is carried out SIR.
Present embodiment is provided with the transmission channel of SIR protection for each; According to its data cases in the current power control cycle; Adjust its SIR protection value, thereby can SIR protection value be adjusted to ideal, suitable degree, avoid because to be provided with the excessive transmitting power of netting side that causes of SIR protection value of transmission channel of SIR protection higher; Perhaps because to be provided with the SIR protection value of transmission channel of SIR protection too small, and can not play the effect of protecting transmission channel.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer read/write memory medium; This program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
Above disclosedly be merely preferred embodiment of the present invention; Certainly can not limit the present invention's interest field with this; One of ordinary skill in the art will appreciate that all or part of flow process that realizes the foregoing description; And, still belong to the scope that invention is contained according to the equivalent variations that claim of the present invention is done.
Claims (10)
1. the Poewr control method of transmission channel more than a kind is characterized in that, comprising:
Measure the Block Error Rate of transmission channel, and adjust the signal-to-jamming ratio SIR of said transmission channel, and, determine a SIR according to the adjusted SIR of said transmission channel according to the Block Error Rate of said transmission channel;
Obtain the SIR protection value of the transmission channel that is provided with SIR protection, and from a said SIR protection value of obtaining and a said SIR, select maximum, as the target SIR of the output of exterior ring power control;
The SIR of physical channel, and, generate through-put power control TPC order as the output of inner loop power control according to the magnitude relationship of SIR that records and target SIR, and with issuing network side in the said TPC order.
2. the method for claim 1 is characterized in that, before the said SIR protection value of obtaining the transmission channel that is provided with SIR protection, also comprises:
For the transmission channel that is provided with the SIR protection,, adjust said SIR protection value according to the said data cases that is provided with the transmission channel of SIR protection.
3. method as claimed in claim 2 is characterized in that, saidly adjusts said SIR protection value according to the said data cases that is provided with the transmission channel of SIR protection, comprising:
When the transmission channel of the said SIR of being provided with protection has data and do not have error code, judge that whether said SIR protection value is greater than a SIR;
If said SIR protection value greater than a SIR, then reduces an adjustment step-length with said SIR protection value;
If said SIR protection value less than a SIR, then detects the poor of a said SIR and said SIR protection value;
When the difference that detects a said SIR and said SIR protection value during, then said SIR protection value is reduced an adjustment step-length less than predetermined threshold value;
When the difference that detects a said SIR and said SIR protection value during, then said SIR protection value is changed to a said SIR and deducts said predetermined threshold value greater than said predetermined threshold value.
4. method as claimed in claim 2 is characterized in that, saidly adjusts said SIR protection value according to the said data cases that is provided with the transmission channel of SIR protection, comprising:
When the transmission channel of the said SIR of being provided with protection has data and error code is arranged, said SIR protection value is increased an adjustment step-length.
5. method as claimed in claim 2 is characterized in that, saidly adjusts said SIR protection value according to the said data cases that is provided with the transmission channel of SIR protection, comprising:
When being provided with the transmission channel free of data of SIR protection, judge whether to start timer when said, the transmission channel that said timer is used to write down the said SIR of being provided with protection does not have the time of data continuously;
If be not activated timer, then start timer;
If started timer, judge whether the time of the record of said timer has reached the protection duration of the transmission channel of the said SIR of being provided with protection;
If the time of said timer record has reached the protection duration of the transmission channel of the said SIR of being provided with protection, then said SIR protection value is changed to a said SIR and deducts said predetermined threshold value;
If the time of said timer record does not reach the protection duration of the transmission channel of the said SIR of being provided with protection, then keep said SIR protection value.
6. a terminal is characterized in that, comprising:
The one SIR determination module is used to measure the Block Error Rate of transmission channel, and adjusts the signal-to-jamming ratio SIR of said transmission channel according to the Block Error Rate of said transmission channel, and according to the adjusted SIR of said transmission channel, determines a SIR;
The target SIR determination module is used to obtain the SIR protection value of the transmission channel that is provided with SIR protection, and from a said SIR protection value of obtaining and a said SIR, selects maximum, as the target SIR of the output of exterior ring power control;
TPC generates and sending module, is used for the SIR of physical channel, and according to the magnitude relationship of the SIR that records and target SIR, generates the through-put power control TPC order as the output of inner loop power control, and said TPC is ordered issue network side.
7. terminal as claimed in claim 6 is characterized in that, also comprises:
SIR protection value adjusting module; Be used for for the transmission channel that is provided with the SIR protection; Obtain at said target SIR determination module before the SIR protection value of transmission channel of the said SIR of being provided with protection,, adjust said SIR protection value according to the said data cases that is provided with the transmission channel of SIR protection.
8. terminal as claimed in claim 7 is characterized in that, said SIR protection value adjusting module comprises:
First judging unit is used for when the transmission channel of the said SIR of being provided with protection has data and do not have error code, judging that whether said SIR protection value is greater than a SIR;
Detecting unit is used for detecting the poor of a said SIR and said SIR protection value when said SIR protection value during less than a SIR;
The one SIR protection value adjustment unit is used for during less than predetermined threshold value, said SIR protection value being reduced an adjustment step-length greater than the difference of a SIR or a said SIR and said SIR protection value when said SIR protection value;
The 2nd SIR protection value adjustment unit is used for said SIR protection value being changed to a said SIR deducting said predetermined threshold value when the difference of a said SIR and said SIR protection value during greater than said predetermined threshold value.
9. terminal as claimed in claim 7 is characterized in that, said SIR protection value adjusting module comprises:
Three S's IR protection value is transferred the unit, is used for when the transmission channel of the said SIR of being provided with protection has data and error code is arranged, and said SIR protection value is increased an adjustment step-length.
10. terminal as claimed in claim 7 is characterized in that, said SIR protection value adjusting module comprises:
Second judging unit when being used for the transmission channel free of data when the said SIR of being provided with protection, judges whether to start timer, and the transmission channel that said timer is used to write down the said SIR of being provided with protection does not have the time of data continuously;
The timer start unit is used for when being not activated timer, starts timer;
The 3rd judging unit is used for when starting timer, judges whether the time of said timer record has reached the protection duration of the transmission channel of the said SIR of being provided with protection;
The 4th SIR protection value adjustment unit is used for when the time of said timer record has reached the protection duration of transmission channel of the said SIR of being provided with protection, the SIR protection value of said transmission channel is changed to a said SIR deducts said predetermined threshold value;
The 5th SIR protection value adjustment unit is used for when the time of said timer record does not reach the protection duration of transmission channel of the said SIR of being provided with protection, keeping said SIR protection value.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110434767.1A CN102413556B (en) | 2011-12-22 | 2011-12-22 | Multi-transmission-channel power control method and terminal |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201110434767.1A CN102413556B (en) | 2011-12-22 | 2011-12-22 | Multi-transmission-channel power control method and terminal |
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| CN102413556B CN102413556B (en) | 2015-04-08 |
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| CN201110434767.1A Active CN102413556B (en) | 2011-12-22 | 2011-12-22 | Multi-transmission-channel power control method and terminal |
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Cited By (1)
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| CN103582102A (en) * | 2012-07-31 | 2014-02-12 | 中兴通讯股份有限公司 | Power adjustment method and device for HS-SCCH |
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| WO2004025973A1 (en) * | 2002-09-12 | 2004-03-25 | Interdigital Technology Corporation | Method and system for adjusting downlink outer loop power to control target sir |
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| WO2004025973A1 (en) * | 2002-09-12 | 2004-03-25 | Interdigital Technology Corporation | Method and system for adjusting downlink outer loop power to control target sir |
| EP1540967A1 (en) * | 2002-09-12 | 2005-06-15 | Interdigital Technology Corporation | Method and system for adjusting downlink outer loop power to control target sir |
| CN1682543A (en) * | 2002-09-12 | 2005-10-12 | 美商内数位科技公司 | Method and system for adjusting downlink outer loop power to control target SIR |
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| CN103582102A (en) * | 2012-07-31 | 2014-02-12 | 中兴通讯股份有限公司 | Power adjustment method and device for HS-SCCH |
| CN103582102B (en) * | 2012-07-31 | 2018-06-05 | 深圳市中兴微电子技术有限公司 | The power regulating method and device of HS-SCCH |
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| CN102413556B (en) | 2015-04-08 |
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