CN1954516A - Wireless communication method and apparatus for controlling the transmission power of downlink and uplink coded composite transport channels based on discontinuous transmission state values - Google Patents
Wireless communication method and apparatus for controlling the transmission power of downlink and uplink coded composite transport channels based on discontinuous transmission state values Download PDFInfo
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Abstract
Provided is a wireless communication method and apparatus for controlling the power of signals transmitted by downlink (DL) and/or uplink (UL) coded composite transport channels (CCTrCHs). A base station transmits signals to a wireless transmit/receive unit (WTRU) via at least one DL CCTrCH, and/or the WTRU transmits signals to the base station via at least one UL CCTrCH. The base station determines whether or not discontinuous transmission (DTX) of a UL CCTrCH that controls the power of a DL CCTrCH is employed, and/or the WTRU determines whether or not DTX of a DL CCTrCH that controls the power of a UL CCTrCH is employed. The power of the CCTrCHs is increased or reduced by a first step size when DTX is employed, and by a second step size when DTX is not employed.
Description
Technical field
The relevant wireless communication system of the present invention comprises at least one base station and at least one wireless transmission/receive unit (WTRU) that communicate with one another via cochain (UL) and following chain (DL) coded composite transport channel (CCTrCHs).More especially, the present invention be relevant with discontinuous transmission (DTX) though whether by apply to through-put power control (TPC) instruction be received from the basis of based on feedback link upgrade the through-put power of chain and cochain coded composite transport channel down respectively.
Background technology
Closed loop power is controlled to be and is widely used in as universal terrestrial radio visit (UTRA) frequency division duplexing (FDD), universal terrestrial radio visit time division duplex (TDD) 3.84/1.28Mcps, Code Division Multiple Access (CDMA) or similar techniques.The through-put power of wireless transmission/receive unit or base station is according to regularly being adjusted by the receiver in base station or the wireless transmission/receive unit by the feedback information that transmits with reverse link.
For example, consider that control is by the following chain closed loop power control of base station transmissions power to specific wireless transmission unit.Wireless transmission/receive unit can be in the special time interval (as time slot or frame) receive from base station, and the certain quality criterion that whether decision base station transmissions power must use as signal noise adds interference ratio is made progress or following adjustment.Next transmission time point of (cochain) from wireless transmission/receive unit to base station, wireless transmission/receive unit transmits transmission power control instruction, comprises base station in order to continue the down relevant information of its through-put power of chain transmission of adjustment, reaches other uplink data.
In many systems, but transmission power control instruction only comprises the information bit whether indicated horsepower should increase or reduce by scheduled volume or step pitch.Power is adjusted accuracy can use an above information (impelling the multichannel step pitch) by each transmission power control instruction, or improves by increasing the transmission power control instruction frequency.The shortcoming of doing like this is to be transmitted the uplink data amount must be lowered the capacity of creating this additional transmissions power control information.Therefore, the power with a direction is adjusted the displacement relation between accuracy and reverse data rate.
In the universal terrestrial radio visit time division duplex (3.84Mcps and 1.28Mcps), be used for special-purpose actual channel (DPCHs) and the actual following chain power of chain shared channel (PDSCHs) down is controlled to be loop and operates in the preceding paragraph explanation mode.In addition, in the universal terrestrial radio visit time division duplex (only selecting 1.28Mcps), the control of cochain power also also is loop for the cochain power control that is used for special-purpose actual channel and actual cochain shared channel.Each transmission power control instruction (last or following) comprises an information bit.Through-put power control step pitch (go up or down) can be 1dB, 2dB or 3dB and be decided by that Radio Link sets up.At chain power control down, following chain channel is to produce relevant with at least one cochain channel that one or more transmission power control instructions are provided.Chain channel can be the multitask channel of number of transmission channels (TrCHs) under this, and wherein each transmission channel can deliver the different communication service.This multitask channel is to be called as coded composite transport channel.
Usually, have the single cochain coded composite transport channel that is mapped to each time chain encoding composite transport channel, and every 10ms frame (be used for 3.84Mcps select) or 5ms subframe (being used for 1.28Mcps selects) has a transmission power control instruction.On the contrary, at the control of cochain power (only being used for 1.28Mcps selects), the cochain coded composite transport channel is to produce relevant with the following chain encoding composite transport channel that transmission power control instruction is provided.Usually, every 5ms subframe has a transmission power control instruction.If the cochain coded composite transport channel occupies an above time slot (every subframe time slot one transmission power control instruction), then may have an above transmission power control instruction.
The coded composite transport channel (be used for the following chain encoding composite transport channel of chain power control down, be used for the cochain coded composite transport channel of cochain power control) that bears power control is to be called as power control coded composite transport channel.The feedback encoding composite transport channel is that power control coded composite transport channel is relevant with its generation, and it can provide transmission power control instruction to give the coded composite transport channel of its (be used for the cochain coded composite transport channel of chain power control down, be used for the following chain encoding composite transport channel of cochain power control).The base station or the wireless transmission/receive unit of through-put power control coded composite transport channel also can receive the feedback encoding composite transport channel, and the base station or the wireless transmission/receive unit of received power control coded composite transport channel also can transmit the feedback encoding composite transport channel.
When free of data is transmitted when being used for this coded composite transport channel, discontinuous transmission is to be that the basis is applied to universal terrestrial radio visit time division duplex system (1.28Mcps and 3.84Mcps) with the coded composite transport channel.Coded composite transport channel can be supported user's part or all transmission.The user can use the one or several coded composite transport channels in the given time slot.When discontinuous transmission activated when being used for coded composite transport channel, each special gathering together produces interval (SBGP) frame (being used for cochain) or each special scheduling parameter (SBSP) frame of gathering together (being used for chain down) except first actual channel only reaches, wherein special gathering together produces interval or the special scheduling parameter of gathering together is to be configured in Radio Link to set up, and all do not have transmission on the actual channel of any this coded composite transport channel of support.It is to produce remarkable system that discontinuous transmission is used, and is resulted from this system as user's usefulness benefit of a little interference, and the battery of mobile phone life-span can be stored in the cochain.
When discontinuous transmission was used to the cochain coded composite transport channel, universal terrestrial radio visit time division duplex (3.84Mcps and 1.28Mcps) had problems.This cochain coded composite transport channel is to be used for the feedback (coded composite transport channel of transmission power control instruction just is provided) of chain power control coded composite transport channel down.When the discontinuous transmission of this cochain coded composite transport channel, transmission power control instruction only is transmitted in special gathering together when being transmitted, and just each special gathering together produces interval frame place.As a result, frequency transmission power upgrades and is acutely reduced, and the usefulness result of power control coded composite transport channel is bad.When discontinuous transmission is used to down the chain encoding composite transport channel, same problem will betide universal terrestrial radio visit time division duplex (only 1.28Mcps selects), and the chain encoding composite transport channel is the feedback encoding composite transport channel that is used for the cochain coded composite transport channel under this.In this example, cochain usefulness can be impaired.Yet when feeding back (cochain) coded composite transport channel if through-put power control size is increased and be discontinuous transmission, this usefulness is damaged and can be alleviated.
In the legacy wireless communication system, no matter transmission power control instruction arrive at the feedback encoding composite transport channel channel why, single transport power control step pitch all is used.In the discontinuous transmission example on the feedback encoding composite transport channel, transmission power control instruction can more normally transmit low 2 to 256 overtones bands and arrive at (producing interval or the special scheduling parameter value of gathering together is decided on special gathering together).Therefore, when discontinuous transmission betided the feedback encoding composite transport channel, system designer or operator had three different choice to radio link configuration.
First through-put power of selecting to be to use optimization to be used for the discontinuous transmission on the feedback encoding composite transport channel is controlled step pitch, and the inferior good usefulness in the experience power control coded composite transport channel during the normal transmission on the feedback encoding composite transport channel.When transmission power control instruction frequently arrived at, inferior good usefulness was to use than the big through-put power control step pitch of be required to be to produce during normal transmission.
The 3rd selection is to reduce special gathering together the cycle (special gathering together produces interval or the special scheduling parameter of gathering together) to minimum possible value, to reduce the influence of power control coded composite transport channel usefulness as far as possible.This will cause from any capacity of the discontinuous transmission use in the feedback encoding composite transport channel or the elimination of battery consumption interests.
The 4th selects to be to use above information bit in the transmission power control instruction, makes the node that can transmit the feedback encoding composite transport channel be sent big step pitch signal when using discontinuous transmission.Yet this has the shortcoming as the reduction feedback encoding composite transport channel capacity of explaining a little earlier.
These selections are all unsatisfactory, and can produce the system effectiveness loss.Reinforcement usefulness in the normal and discontinuous transmission example of the feedback encoding composite transport channel that is required to be.
Summary of the invention
The radio communication device of chain and cochain coded composite transport channel institute transmitted signal power under the relevant controlling of the present invention.This device can be radio communication device, base station, wireless transmission/receive unit or integrated circuit (IC).
Base station be via at least one down chain encoding composite transport channel transmission signals to wireless transmission/receive unit, and/or wireless transmission/receive unit is to base station via at least one cochain coded composite transport channel transmission signals.Whether base station can determine to control down the discontinuous transmission of the cochain coded composite transport channel of chain encoding composite transport channel power and can be used, and/or whether the discontinuous transmission that wireless transmission/receive unit can determine to control the following chain encoding composite transport channel of cochain coded composite transport channel power can be used.When discontinuous transmission was used, the power of coded composite transport channel was apart from increasing or reducing by the first step.When discontinuous transmission was not used, the power of coded composite transport channel was to increase or reduce by second step pitch.
Be used to carry out wireless communication system of the present invention and comprise a radio network controller (RNC), at least one base station and at least one wireless transmission/receive unit.Radio network controller can transmit following chain through-put power control step pitch to be notified to base station and controls the signal power that is transmitted via chain encoding composite transport channel down, and/or radio network controller can transmit upper link transmission power control step pitch and notifies to wireless transmission/receive unit (via base station) and control the signal power that is transmitted via the cochain coded composite transport channel.
The base station of system can comprise decision and control the device whether discontinuous transmission of the cochain coded composite transport channel of chain encoding composite transport channel power down can be used, reception comprises and is used for the device of the cochain coded composite transport channel of the transmission power control instruction of chain encoding composite transport channel down, and, increase or reduce power by the indicated stride value of following chain through-put power control step pitch notification signal and upgrade the device of chain encoding composite transport channel power down based on transmission power control instruction.This stride value is whether to determine on this determination device that this discontinuous transmission is used to decide.
The cochain coded composite transport channel can be received by base station each a plurality of image duration scheduled time.If the cochain coded composite transport channel is not received in given scheduled time during frame, then base station can determine discontinuous transmission to be applied to the cochain coded composite transport channel of chain encoding composite transport channel power under the may command.If the cochain coded composite transport channel is received in the two continuous scheduled time frames, and discontinuous transmission is used to the cochain coded composite transport channel, and then can to determine to control down the discontinuous transmission of chain encoding composite transport channel power be not to be used to the cochain coded composite transport channel to base station.The length of given scheduled time frame can be ten (10) milliseconds.Wireless communication system can be universal terrestrial radio visit time division duplex system.
Following chain through-put power control step pitch notification signal can be embedded as Radio Link and set up and require message, and the Radio Link addition requires message, the information assembly in the Radio Link reorganization ready message.
The cochain coded composite transport channel also can be received in during each a plurality of scheduled time subframe.If the cochain coded composite transport channel is not received in given scheduled time subframe, then can to determine to control down the discontinuous transmission of chain encoding composite transport channel power be to be used to the cochain coded composite transport channel to base station.The length of given scheduled time subframe can be five (5) milliseconds.
The wireless transmission/receive unit of system can comprise decision and control the device whether discontinuous transmission of the following chain encoding composite transport channel of cochain coded composite transport channel power can be used, reception comprises the device of the following chain encoding composite transport channel of the transmission power control instruction that is used for the cochain coded composite transport channel, and, increase or reduce the device that power upgrades cochain coded composite transport channel power by the indicated stride value of upper link transmission power control step pitch notification signal based on transmission power control instruction.This stride value is whether to determine on this determination device that this discontinuous transmission is used to decide.
Following chain encoding composite transport channel can be received each a plurality of image duration scheduled time.If down the chain encoding composite transport channel is not received in given scheduled time during frame, then wireless transmission/receive unit can determine discontinuous transmission to be applied to the following chain encoding composite transport channel of may command cochain coded composite transport channel power.If following chain encoding composite transport channel is received in the two continuous scheduled time frames, and discontinuous transmission is used to down the chain encoding composite transport channel, and then can to determine to control the discontinuous transmission of cochain coded composite transport channel power be not to be used to chain encoding composite transport channel down to wireless transmission/receive unit.
Following chain encoding composite transport channel also can be received in during each a plurality of scheduled time subframe.If down the chain encoding composite transport channel is not received in given scheduled time subframe, then can to determine to control the discontinuous transmission of cochain coded composite transport channel power be to be used to down the chain encoding composite transport channel to wireless transmission/receive unit.The length of given scheduled time subframe can be 5 milliseconds.
Upper link transmission power control step pitch notification signal can be embedded as the information assembly in special-purpose actual channel (DPCH) power control information of the one group of cochain signal.
Description of drawings
The radio communication block figure of Fig. 1 for being configured according to the present invention;
Fig. 2 A, 2B, 2C describe according to the present invention when discontinuous transmission state has normal value, and each Radio Link message has the following chain through-put power that is embedded and controls normal step pitch notification signal;
Fig. 3 A, 3B, 3C describe according to the present invention when discontinuous transmission state has discrete value, and each Radio Link message has the following chain through-put power that is embedded and controls discontinuous transmission step pitch notification signal;
Fig. 4 describes according to the present invention when discontinuous transmission state has discrete value, has one group of special-purpose actual channel power control information signal that the upper link transmission power that is embedded is controlled discontinuous transmission step pitch notification signal;
Fig. 5 is for comprising the method step process chart that can be transmitted signal power via following chain encoding composite transport channel control according to the present invention; And
Fig. 6 is for comprising the method step process chart that can be transmitted signal power via the control of cochain coded composite transport channel according to the present invention.
Embodiment
After this, " wireless transmission receiving element " speech is to comprise but be not subject to subscriber equipment (UE), travelling carriage, and fixing or moving user unit, calling set maybe can operate in any other types of devices in the wireless environment.
After this be called as " base station " speech and be and comprise but be not subject to Node B, address control unit, other type in accessing points or the wireless environment connects Jie's device.
As roughly being applied to Universal Mobile Telecommunications System (UMTS), CDMA2000 (Code Division Multiple Access 2000) and Code Division Multiple Access, the present invention can further be applied to time division duplex, frequency division duplexing and timesharing synchronous CDMA multiple access (TD-SCDMA) are applied to other wireless system but also can imagine.
Characteristic of the present invention can be merged in integrated circuit or be configured in the circuit that comprises the plurality of interconnected assembly.
Fig. 1 shows the wireless communication system 100 that comprises a radio network controller 105, one base stations 110 and a wireless transmission/receive unit 115.Base station 110 be via at least one down chain encoding composite transport channel 112 transmission signals to wireless transmission/receive unit 115, and wireless transmission/receive unit 115 is to base station 110 via at least one cochain coded composite transport channel 114 transmission signals.The chain through-put power is controlled step pitch notification signal 120 to base station 110 under radio network controller 105 transmission, and/or controls step pitch notification signal 130 to wireless transmission/receive unit 115 via base station 110 uses as Radio Resource control (RRC) signal transmission transmission upper link transmission power.
Cochain reaches chain power control down and can strengthen by the present invention.Though explained that the present invention also can be applied to the discontinuous communication system that is transmitted in the power control instruction transmission direction of any utilization in universal terrestrial radio visit time division duplex system.About chain power control down, in the universal terrestrial radio visit time division duplex system (3.84Mcps and 1.28Mcps), the through-put power control step pitch notice that is used in the discontinuous transmission in the cochain is can revise via 110 the message from radio network controller 105 to base station that comprises the Radio Link shuffling information to implement.
Shown in Fig. 2 A, 2B, 2C, following chain through-put power is controlled normal step pitch notification signal 120a can be embedded as information assembly in one of number message of comprising the Radio Link shuffling information.These messages are that Radio Link is set up and required message 210, and the Radio Link addition requires message 220 or Radio Link reorganization ready message 230.
Alternatively be, shown in Fig. 3 A, 3B, 3C, if the feedback encoding composite transport channel can discontinuously transmit, then descend the chain through-put power to control discontinuous transmission step pitch notification signal 120b and be transmitted as Radio Link to set up and require message 310, the Radio Link addition requires the information assembly of message 320 or Radio Link reorganization ready message 330.This substitutes is to be held can select to learn that in advance discontinuous transmission will not be used to the cochain example, or expects that discontinuous transmission reaches normal (non-discontinuous transmission) upper link transmission and all uses the identical control of chain through-put power down step pitch example.Traditionally, if radio network controller 105 does not provide down the chain through-put power to control discontinuous transmission step pitch notification signal 120b, then base station 110 can then use the identical step pitch of chain through-put power control down at discontinuous transmission and normal upper link transmission.
Between transmission period, every 10ms frame (be used for 3.84Mcps select) or 5ms subframe (being used for 1.28Mcps selects), base station 110 must determine each Radio Link following chain encoding composite transport channel be updated through-put power.At each time chain encoding composite transport channel, discontinuous transmission state is to be defined at correspondence feedback (cochain) coded composite transport channel.Given time point, if the feedback encoding composite transport channel can discontinuously transmit, then this discontinuous transmission state can adopt " discontinuous " value, or feedback (cochain) coded composite transport channel must transmit continuously, then adopts " normally " to be worth.Discontinuous transmission state initial value is " normally ".If discontinuous transmission state is " normally ", and the feedback encoding composite transport channel is not received in given frame, and then discontinuous transmission state is converted into " discontinuous ".If discontinuous transmission state is " discontinuous ", and the feedback encoding composite transport channel is received in two successive frames, and then discontinuous transmission state is converted into " normally ".
Given discontinuous transmission state, the through-put power of power control coded composite transport channel be updated as follows.If being received, the last transmission (in the previous frame) of transmission power control instruction so coded composite transport channel is used for power control coded composite transport channel, and discontinuous transmission state is " normally ", then if transmission power control instruction is last, then through-put power is to upgrade by+(following chain through-put power is controlled normal step pitch notification signal 120a) dB, if transmission power control instruction is for down, then through-put power is to upgrade by-(following chain through-put power is controlled normal step pitch notification signal 120a) dB.If being received, the last transmission (in the previous frame) of transmission power control instruction so coded composite transport channel is used for power control coded composite transport channel, and discontinuous transmission state is " discontinuous ", then if transmission power control instruction is last, then through-put power is to upgrade by+(following chain through-put power is controlled discontinuous transmission step pitch notification signal 120b) dB, if transmission power control instruction is for down, then through-put power is to upgrade by-(following chain through-put power is controlled discontinuous transmission step pitch notification signal 120b) dB.Be used for power control coded composite transport channel if the last frame transmission of no transmission power control instruction so coded composite transport channel is received, then the transmission of this coded composite transport channel remains unchanged.
The cochain power control of universal terrestrial radio visit time division duplex (only being used for 1.28Mcps selects) is to use the Radio Resource control signal to send via base station 110 and transmits cochain step pitch notification signal 130 to wireless transmission/receive unit 115.It is to transmit via the Dedicated Control Channel (DCCH) that is built in 115 of radio network controller 105 and wireless transmission/receive units that this signal sends.In fact, this cochain stride information is to be transferred into base station 110, and it does not then decipher this information, and just this cochain stride information is easily penetrated for base station 110, and this information wireless is transferred to wireless transmission/receive unit 115.
As shown in Figure 4, being used for step pitch notice in the discontinuous transmission example of following chain is to control discontinuous transmission step pitch signal 130a and implement via adding one group of fresh information assembly upper link transmission power in " the special-purpose actual channel power control information of cochain " signal.This upper link transmission power is controlled discontinuous transmission step pitch signal 130a and can be selected to learn that in advance discontinuous transmission will not be used to down the chain example, or expect discontinuous transmission and normal (non-discontinuous transmission) down the chain transmission all use identical upper link transmission power control step pitch example.Traditionally, if radio network controller does not provide upper link transmission power to control discontinuous transmission step pitch signal 130a, then wireless transmission/receive unit 115 can then use identical upper link transmission power control step pitch at discontinuous transmission and normal chain transmission down.
Between transmission period, every 5ms subframe (be used for 1.28Mcps select), wireless transmission/receive unit 115 must determine each Radio Link the cochain coded composite transport channel be updated through-put power.At each cochain coded composite transport channel, " discontinuous transmission state " is to be defined at correspondence feedback (following chain) coded composite transport channel.Whether given time point, this state visible feedback (following chain) coded composite transport channel can discontinuous transmission and are adopted " discontinuous " or " normally ".Discontinuous transmission state initial value is " normally ".If discontinuous transmission state is " normally ", and the feedback encoding composite transport channel is not received in given frame, and then discontinuous transmission state is converted into " discontinuous ".If discontinuous transmission state is " discontinuous ", and the feedback encoding composite transport channel is received in two successive frames, and then discontinuous transmission state is converted into " normally ".
Given discontinuous transmission state, the through-put power of power control coded composite transport channel be updated as follows.If being received, the last transmission (in the previous frame) of transmission power control instruction so coded composite transport channel is used for power control coded composite transport channel, and discontinuous transmission state is " normally ", then if transmission power control instruction is last, then through-put power is to upgrade by+(through-put power control step pitch 120a) dB, if transmission power control instruction is for down, then through-put power is to upgrade by-(through-put power control step pitch 120a) dB.If being received, the last transmission (in the previous frame) of transmission power control instruction so coded composite transport channel is used for power control coded composite transport channel, and discontinuous transmission state is " discontinuous ", then if transmission power control instruction is last, then through-put power is to upgrade by+(through-put power is controlled discontinuous transmission step pitch 120b) dB, if transmission power control instruction is for down, then through-put power is to upgrade by-(through-put power is controlled discontinuous transmission step pitch 120b) dB.Be used for power control coded composite transport channel if the last frame transmission of no transmission power control instruction so coded composite transport channel is received, then the transmission of this coded composite transport channel remains unchanged.
In the alternate embodiment, variable transmit power control step pitch can be used.In the time of will be hanged down because of the discontinuous transmission in the feedback encoding composite transport channel as betiding the transmission frequency renewal frequency usually, if it is too low that signal-to-jamming ratio and target are compared down decline, then this will make receiver (wireless transmission/receive unit 115 in the following chain example, the base station 110 in the cochain example) the higher step pitch of dynamic command of power control coded composite transport channel.
Fig. 5 is for comprising the method step process chart 500 that can be transmitted signal power via following chain encoding composite transport channel control according to the present invention.In the step 505, radio network controller 105 can transmit down chain through-put power control step pitch notification signal 120 to base station 110." normal " value that in the step 510, discontinuous transmission state value is by initial turning to.In the step 515, whether the cochain coded composite transport channel that decision comprises transmission power control instruction is received in given time frame is used for chain encoding composite transport channel down.
If the cochain coded composite transport channel is not received in the given time frame, then discontinuous transmission state value change to " discontinuous " value (step 520), indicates this discontinuous transmission to be used to the cochain coded composite transport channel.In the step 525, following chain encoding composite transport channel power is to increase or reduce power by the discontinuous transmission step pitch of chain under the through-put power control to upgrade.
If the cochain coded composite transport channel is received in the given time frame, determine then whether the cochain coded composite transport channel is received in two successive frames (step 530).If the cochain coded composite transport channel such as step 530 the decision maker be received in two successive frames, and discontinuous transmission state value such as step 535 the decision maker be " discontinuous " value, then discontinuous transmission state value change to " normally " value, indicates discontinuous transmission not to be used to cochain coded composite transport channel (step 540).In the step 545, following chain encoding composite transport channel power is to increase or reduce power by the normal step pitch of chain under the through-put power control to upgrade.
Fig. 6 is for comprising the method step process chart 600 that can be transmitted signal power via the control of cochain coded composite transport channel according to the present invention.In the step 605, radio network controller 105 can transmit upper link transmission power control step pitch notification signal 130 to wireless transmission/receive unit 115." normal " value that in the step 610, discontinuous transmission state value is by initial turning to.In the step 615, whether the following chain encoding composite transport channel that decision comprises transmission power control instruction is received in given time frame and is used for the cochain coded composite transport channel.
If following chain encoding composite transport channel is not received in the given time frame, then discontinuous transmission state value change to " discontinuous " value (step 620), indicates this discontinuous transmission to be used to down the chain encoding composite transport channel.In the step 625, cochain coded composite transport channel power is to increase or reduce power by the discontinuous transmission step pitch of through-put power control cochain to upgrade.
If the chain encoding composite transport channel is received in the given time frame down, then whether the chain encoding composite transport channel is received in two successive frames (step 630) under the decision.If down the chain encoding composite transport channel such as step 630 the decision maker be received in two successive frames, and discontinuous transmission state value such as step 635 the decision maker be " discontinuous " value, then discontinuous transmission state value change to " normally " value, indicates discontinuous transmission not to be used to down chain encoding composite transport channel (step 640).In the step 645, cochain coded composite transport channel power is to increase or reduce power by the normal step pitch of through-put power control cochain to upgrade.
Though the present invention shows and explanation that with reference to preferred embodiment is special the person skilled in the art only should be appreciated that otherwise deviates from the invention described above category, all can do the change of various types and details.
Claims (38)
1. a control is by the method for this base station via this time chain encoding signal power that composite transport channel transmits, be included in the wireless communication system of at least one base station and at least one wireless transmission/receive unit (WTRU), this base station sends a signal to this wireless transmission/receive unit via at least one chain (DL) coded composite transport channel (CCTrCH) down, and this wireless transmission/receive unit sends a signal to this base station via at least one cochain (UL) coded composite transport channel, and this method comprises:
(a) this base station receives the step pitch of chain through-put power control notification signal;
(b) this base station determines whether control the discontinuous transmission of a cochain coded composite transport channel of chain encoding composite transport channel power can be used;
(c) this base station receives the cochain coded composite transport channel from the transmission power control instruction that is used for this time chain encoding composite transport channel comprising of this wireless transmission/receive unit; And
(d) this base station is based on this transmission power control instruction, increase or reduce this power and upgrade this time chain encoding composite transport channel power by the indicated stride value of this time chain through-put power control step pitch notification signal, wherein this stride value is to decide on the decision of step (b).
2. the method for claim 1 is characterized in that this wireless communication system is a universal terrestrial radio visit time division duplex system.
3. the method for claim 1 is characterized in that this time chain through-put power control step pitch notification signal can be embedded into as Radio Link to set up an information assembly that requires in the message.
4. the method for claim 1 is characterized in that this time chain through-put power control step pitch notification signal can be embedded into as Radio Link increase and require a information assembly in the message.
5. the method for claim 1 is characterized in that this time chain through-put power control step pitch notification signal can be embedded into as the information assembly in the Radio Link reorganization ready message.
6. the method for claim 1 is characterized in that a cochain coded composite transport channel can be received by this base station each a plurality of image duration scheduled time usually, and wherein this step (b) further comprises:
(b1) if when a given scheduled time frame does not receive this cochain coded composite transport channel, this this discontinuous may command cochain coded composite transport channel of chain encoding composite transport channel power once that is transmitted in of base station decision utilization; And
(b2) if in two continuous scheduled time frames, receive the cochain coded composite transport channel, and discontinuous transmission is used to the cochain coded composite transport channel of this time of may command chain encoding composite transport channel power, and this base station determines discontinuous transmission not to be used to this cochain coded composite transport channel.
7. method as claimed in claim 6, the length that it is characterized in that this given scheduled time frame is 10 milliseconds.
8. the method for claim 1 is characterized in that a cochain coded composite transport channel is received by this base station each a plurality of image duration scheduled time usually, and wherein this step (b) further comprises:
(b1) if when a given scheduled time subframe does not receive this cochain coded composite transport channel, this this discontinuous may command cochain coded composite transport channel of chain encoding composite transport channel power once that is transmitted in of base station decision utilization.
9. method as claimed in claim 8, the length that it is characterized in that this given scheduled time subframe is 5 milliseconds.
10. control this wireless transmission/receive unit transmits signal power via this cochain coded composite transport channel method for one kind, be included in the wireless communication system of at least one base station and at least one wireless transmission/receive unit, this base station sends a signal to this wireless transmission/receive unit via at least one chain encoding composite transport channel down, and this wireless transmission/receive unit sends a signal to this base station via at least one cochain coded composite transport channel, and this method comprises:
(a) this wireless transmission/receive unit receives upper link transmission power control step pitch notification signal;
(b) this wireless transmission/receive unit determines whether to use the discontinuous transmission of the following chain encoding composite transport channel of controlling a cochain coded composite transport channel power;
(c) this wireless transmission/receive unit receives and comprises chain encoding composite transport channel under the transmission power control instruction that is used for this cochain coded composite transport channel; And
(d) this wireless transmission/receive unit is based on this transmission power control instruction, increase or reduce this power and upgrade this cochain coded composite transport channel power by the indicated stride value of this upper link transmission power control step pitch notification signal, wherein this stride value is to decide on the decision of step (b).
11. method as claimed in claim 10 is characterized in that this wireless communication system is a universal terrestrial radio visit time division duplex system.
12. method as claimed in claim 10 is characterized in that the chain encoding composite transport channel is received by this wireless transmission/receive unit each a plurality of image duration scheduled time usually, wherein this step (b) further comprises:
(b1) if when a given scheduled time frame does not receive this time chain encoding composite transport channel, this wireless transmission/receive unit determines this discontinuous transmission to be applied to the following chain encoding composite transport channel of this cochain coded composite transport channel power of may command; And
(b2) if in two continuous scheduled time frames, receive chain encoding composite transport channel down, and discontinuous transmission is used to the following chain encoding composite transport channel of this cochain coded composite transport channel power of may command, and this wireless transmission/receive unit determines discontinuous transmission not to be used to this time chain encoding composite transport channel.
13. method as claimed in claim 12, the length that it is characterized in that this given scheduled time frame is 10 milliseconds.
14. method as claimed in claim 10 is characterized in that the chain encoding composite transport channel is received by this wireless transmission/receive unit each a plurality of image duration scheduled time usually down, wherein this step (b) further comprises:
(b1) if when a given scheduled time subframe does not receive this time chain encoding composite transport channel, this this discontinuous following chain encoding composite transport channel that is transmitted in this cochain coded composite transport channel power of may command of wireless transmission/receive unit decision utilization.
15. method as claimed in claim 14, the length that it is characterized in that this given scheduled time subframe is 5 milliseconds.
16. method as claimed in claim 10 is characterized in that this upper link transmission power control step pitch notification signal can be embedded into as the information assembly in the special-purpose actual channel power control information of the one group of cochain signal.
17. a wireless communication system comprises:
(a) radio network controller;
(b) at least one base station; And
(c) at least one wireless transmission/receive unit, wherein:
(i) this base station sends a signal to this wireless transmission/receive unit via at least one chain encoding composite transport channel down;
(ii) this wireless transmission/receive unit sends a signal to this base station via at least one cochain coded composite transport channel:
(iii) this radio network controller transmits the step pitch of chain through-put power control notification signal and controls the signal power of being transmitted via this time chain encoding composite transport channel to this base station; And
(iv) this radio network controller can transmit upper link transmission power control step pitch notification signal and control the signal power of being transmitted via this cochain coded composite transport channel to this wireless transmission/receive unit.
18. system as claimed in claim 17 is characterized in that further comprising:
(d) whether decision uses the device of the discontinuous transmission of the cochain coded composite transport channel of controlling this time chain encoding composite transport channel power;
(e) receive the device of the cochain coded composite transport channel of the transmission power control instruction comprise this time chain encoding composite transport channel; And
(f) based on this transmission power control instruction, increase or reduce the device that this power upgrades this time chain encoding composite transport channel power by the indicated stride value of this time chain through-put power control step pitch notification signal, wherein whether this stride value is to use this discontinuous transmission to decide on this determination device decision.
19. system as claimed in claim 18 is characterized in that the cochain coded composite transport channel is received by this base station each a plurality of image duration scheduled time usually, this determination device (d) further comprises:
(d1) if when a given scheduled time frame does not receive this cochain coded composite transport channel, this discontinuous device that is transmitted in the cochain coded composite transport channel of this time of may command chain encoding composite transport channel power of decision utilization; And
(d2) if the cochain coded composite transport channel is received in the two continuous scheduled time frames, and discontinuous transmission is used to the may command cochain coded composite transport channel of chain encoding composite transport channel power once, and the discontinuous device that is transmitted in the cochain coded composite transport channel of this time of control chain encoding composite transport channel power is not used in decision.
20. system as claimed in claim 19, the length that it is characterized in that this given scheduled time frame is 10 milliseconds.
21. system as claimed in claim 19 is characterized in that this determination device, receiving system, updating device and modifier are to be arranged in this base station.
22. system as claimed in claim 17 is characterized in that this wireless communication system is a universal terrestrial radio visit time division duplex system.
23. system as claimed in claim 17 is characterized in that this time chain through-put power control step pitch notification signal can be embedded into as Radio Link to set up an information assembly that requires in the message.
24. system as claimed in claim 17 is characterized in that this time chain through-put power control step pitch notification signal can be embedded into as Radio Link increase and require information assembly in the message.
25. system as claimed in claim 17 is characterized in that this time chain through-put power control step pitch notification signal can be embedded as the information assembly in the Radio Link reorganization ready message.
26. system as claimed in claim 18 is characterized in that a cochain coded composite transport channel can be received in during each a plurality of scheduled time subframe usually, this determination device (d) further comprises:
(d1) if when a given scheduled time subframe does not receive this cochain coded composite transport channel, this discontinuous device that is transmitted in the cochain coded composite transport channel of this time of may command chain encoding composite transport channel power of decision utilization.
27. system as claimed in claim 26, the length that it is characterized in that this given scheduled time subframe is 5 milliseconds.
28. system as claimed in claim 17 further comprises:
(d) whether decision uses the device of the discontinuous transmission of the cochain coded composite transport channel of controlling this time chain encoding composite transport channel power;
(e) reception comprises the device of the following chain encoding composite transport channel of the transmission power control instruction that is used for this cochain coded composite transport channel; And
(f) based on this transmission power control instruction, increase or reduce the device that this power upgrades this cochain coded composite transport channel power by the indicated stride value of this upper link transmission power control step pitch notification signal, wherein whether this stride value is to use this discontinuous transmission to decide on this determination device decision.
29. system as claimed in claim 28 is characterized in that the chain encoding composite transport channel is received by this base station each a plurality of image duration scheduled time usually, this determination device (d) further comprises:
(d1) if when a given scheduled time frame does not receive this time chain encoding composite transport channel, this discontinuous device that is transmitted in the following chain encoding composite transport channel of this cochain coded composite transport channel power of may command of decision utilization; And
(d2) if following chain encoding composite transport channel is received in the two continuous scheduled time frames, and discontinuous transmission is used to the following chain encoding composite transport channel of this cochain coded composite transport channel power of may command, and the discontinuous device that is transmitted in the following chain encoding composite transport channel of this cochain coded composite transport channel power of control is not used in decision.
30. system as claimed in claim 29, the length that it is characterized in that this given scheduled time frame is 10 milliseconds.
31. system as claimed in claim 29 is characterized in that this determination device, receiving system, updating device and modifier are to be arranged in this wireless transmission/receive unit.
32. system as claimed in claim 28 is characterized in that the chain encoding composite transport channel can be received in during each a plurality of scheduled time subframe usually, this determination device (d) further comprises:
(d1) if when a given scheduled time subframe does not receive this time chain encoding composite transport channel, this discontinuous device that is transmitted in the following chain encoding composite transport channel of this cochain coded composite transport channel power of may command of decision utilization.
33. system as claimed in claim 32, the length that it is characterized in that this given scheduled time subframe is 5 milliseconds.
34. system as claimed in claim 17 is characterized in that this upper link transmission power control step pitch notification signal can be embedded into as the information assembly in the special-purpose actual channel power control information of the one group of cochain signal.
35. a base station comprises:
(a) transmit the device of signal via at least one down chain encoding composite transport channel;
(b) the chain through-put power is controlled the device that the step pitch notification signal is controlled the signal power of being transmitted via this time chain encoding composite transport channel under the reception;
(c) whether decision is used and is controlled the device of the discontinuous transmission of the cochain coded composite transport channel of chain encoding composite transport channel power;
(d) receive the device of the cochain coded composite transport channel of the transmission power control instruction comprise this time chain encoding composite transport channel; And
(e) based on this transmission power control instruction, increase or reduce the device that this power upgrades this time chain encoding composite transport channel power by the indicated stride value of this time chain through-put power control step pitch notification signal, wherein whether this stride value is to determine this discontinuous transmission of utilization to decide on this determination device.
36. an integrated circuit comprises:
(a) transmit the device of signal via at least one down chain encoding composite transport channel;
(b) the chain through-put power is controlled the device that the step pitch notification signal is controlled the signal power of being transmitted via this time chain encoding composite transport channel under the reception;
(c) whether decision is used and is controlled the device of the discontinuous transmission of the cochain coded composite transport channel of chain encoding composite transport channel power;
(d) receive the device of the cochain coded composite transport channel of the transmission power control instruction comprise this time chain encoding composite transport channel; And
(e) based on this transmission power control instruction, increase or reduce the device that this power upgrades this time chain encoding composite transport channel power by the indicated stride value of this time chain through-put power control step pitch notification signal, wherein whether this stride value is to determine this discontinuous transmission of utilization to decide on this determination device.
37. a wireless transmission/receive unit comprises:
(a) transmit the device of signal via at least one cochain coded composite transport channel;
(b) whether decision uses the device of the discontinuous transmission of the following chain encoding composite transport channel of controlling a cochain coded composite transport channel power;
(c) receive the device of the following chain encoding composite transport channel of the transmission power control instruction comprise this cochain coded composite transport channel; And
(d) based on this transmission power control instruction, increase or reduce the device that this power upgrades this time chain encoding composite transport channel power by the indicated stride value of upper link transmission power control step pitch notification signal, wherein whether this stride value is to determine this discontinuous transmission of utilization to decide on this determination device.
38. an integrated circuit comprises:
(a) transmit the device of signal via at least one cochain coded composite transport channel;
(b) whether decision uses the device of the discontinuous transmission of the following chain encoding composite transport channel of controlling a cochain coded composite transport channel power;
(c) receive the device of the following chain encoding composite transport channel of the transmission power control instruction comprise this cochain coded composite transport channel; And
(d) based on this transmission power control instruction, increase or reduce the device that this power upgrades this time chain encoding composite transport channel power by the indicated stride value of upper link transmission power control step pitch notification signal, wherein whether this stride value is to determine this discontinuous transmission of utilization to decide on this determination device.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52397303P | 2003-11-21 | 2003-11-21 | |
| US60/523,973 | 2003-11-21 | ||
| US10/956,419 | 2004-10-01 |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100866066A Division CN101247155A (en) | 2003-11-21 | 2004-11-16 | Wireless communication method and apparatus for controlling transmission power of downlink and uplink coded composite transport channel based on discontinuous transmission state value |
| CN201010128887.4A Division CN101902813A (en) | 2003-11-21 | 2004-11-16 | Wireless communications method and device according to chain and cochain coded composite transport channel through-put power under the discontinuous transmission state value control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1954516A true CN1954516A (en) | 2007-04-25 |
Family
ID=37198347
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100866066A Pending CN101247155A (en) | 2003-11-21 | 2004-11-16 | Wireless communication method and apparatus for controlling transmission power of downlink and uplink coded composite transport channel based on discontinuous transmission state value |
| CN 200480024551 Pending CN1954516A (en) | 2003-11-21 | 2004-11-16 | Wireless communication method and apparatus for controlling the transmission power of downlink and uplink coded composite transport channels based on discontinuous transmission state values |
| CN 200420057352 Expired - Lifetime CN2834032Y (en) | 2003-11-21 | 2004-11-22 | Radio communication device for control of transmission power of composite uplink/downlink code transmission channel |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100866066A Pending CN101247155A (en) | 2003-11-21 | 2004-11-16 | Wireless communication method and apparatus for controlling transmission power of downlink and uplink coded composite transport channel based on discontinuous transmission state value |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420057352 Expired - Lifetime CN2834032Y (en) | 2003-11-21 | 2004-11-22 | Radio communication device for control of transmission power of composite uplink/downlink code transmission channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN101247155A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7881742B2 (en) * | 2007-01-31 | 2011-02-01 | Qualcomm, Incorporated | Method and apparatus for power control during DTX operation |
| US7986959B2 (en) | 2007-02-14 | 2011-07-26 | Qualcomm Incorporated | Preamble based uplink power control for LTE |
-
2004
- 2004-11-16 CN CNA2008100866066A patent/CN101247155A/en active Pending
- 2004-11-16 CN CN 200480024551 patent/CN1954516A/en active Pending
- 2004-11-22 CN CN 200420057352 patent/CN2834032Y/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN101247155A (en) | 2008-08-20 |
| CN2834032Y (en) | 2006-11-01 |
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