CN103068026A - Power adjustment method and power adjustment device and power adjustment system - Google Patents
Power adjustment method and power adjustment device and power adjustment system Download PDFInfo
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Abstract
The invention discloses a power adjustment method, a power adjustment device and a power adjustment system. According to the power adjustment method, a sending end receives an instruction message from a receiving end through a fractional dedicated physical channel (F-DPCH), wherein information carried in the instruction message comprises in-station process control (ISPC) information and transmitting power control (TPC) information; and the sending end adjusts transmitting power of two streaming data channels according to the ISPC information and the TPC information. According to the technical scheme of the power adjustment method, the power adjustment device and the power adjustment system, the effects that upstream multiple input multiple output (MIMO) inter-flow power can be adjusted flexibly in an upstream MIMO system which only contains a single power control loop, extra resource expenses are not caused, and double-flow transmission is realized more efficiently are achieved.
Description
Technical field
The present invention relates to the communications field, in particular to a kind of power regulating method, Apparatus and system.
Background technology
High Speed Uplink Packet access (HSUPA) is the up Enhanced Technology of being introduced by 3GPP Release 6, be intended to improve transmission quality and the spectrum efficiency of system up-link, be to the enhancing of Wideband Code Division Multiple Access (WCDMA) (WCDMA) up-link performance among the Release 99 and further expand.HSUPA by introduce fast uplink mix retransmit (HARQ), based on the uplink scheduling of NodeB and than before the more simple multi-code transmission of version improve the up-link transmission performance, make the peak-peak speed of up link under the QPSK modulation system, can reach 5.76 million per seconds (Mbps).
Multiple-input and multiple-output (MIMO) system uses many antennas to carry out the wireless communication system of data message wireless transmission and reception at transmitting terminal and receiving terminal simultaneously.MIMO can use many transmit antennas of emitting side independently to send separately data-signal, utilizes many reception antennas to receive and recovery raw information at receiver side simultaneously.The MIMO technology can be under the condition that does not increase extra bandwidth and the total transmitting power of transmitting terminal the throughput performance of elevator system significantly, and the transmission range that can extend signal is to obtain wider system ovelay range, thereby exchange the spectrum efficiency of wireless communication system for the cost of the degree of freedom that takes up room, whereby promoting transmission rate and improve the communication quality of system.The MIMO technology can be divided into the emission receive diversity and spatial reuse two classes.Emission the receive diversity multiplex transmission path that refers to utilize many antennas of emission or receiving terminal to provide send identical information, these identical information must derive from least 2 separate signal sources, to strengthen data transmission quality.Spatial reuse refers to that the high-rate data stream of transmitting terminal is divided into a plurality of sub data flows than low rate, and different sub data flows is launched from different transmitting antennas.If the spatial domain subchannel that consists of between can the aerial array with transmitting terminal and receiving terminal is considered as separate, namely can outside time domain and frequency domain, additionally provide the spatial domain degree of freedom, so that between the signal that different transmit antennas sends, can mutually distinguish, receiving terminal just can be distinguished these parallel sub data flows so, and need not pay extra time or frequency resource as cost.Space multiplexing technique can greatly improve channel capacity under the high s/n ratio condition, and can play a role under transmitting terminal can't obtain the condition of channel information.
In 3GPP Release 10, HSUPA system uplink MIMO is discussing the related content of its design at present.Accompanying drawing 1 has provided the emitting structural schematic diagram of introducing system after the Uplink MIMO, and as shown in Figure 1, two data flow points do not correspond on E-DPDCH and the S-E-DPDCH, and maps on two transmit antennas after the weighting through two weights respectively and finish emission.After the HSUPA system uplink is introduced MIMO, will under the high s/n ratio condition, use stream transmission to improve throughput and the capacity of channel.Because the introducing of stream transmission will certainly cause corresponding impact to the uplink power control loop of system.In the original HSUPA system, owing to only relate to the transfer of data of single current, so only have single power control loop road in the system, finish the distribution of the individual data blocks of data channel power that carries on its single current with assisting users.When having stream transmission in the system, user side then need be considered the problem that the data channel power of data block on two streams is distributed simultaneously.
The solution to the problems described above of discussing at present mainly contains two kinds: first system arranges two power control loop roads, independently the transmitting power of two stream data channel is controlled and is adjusted.But set up an extra power control loop road will increase corresponding expense, and when system self-adaption is adjusted into single-stream transmission, will has a power control loop and be in idle condition, cause the unnecessary wasting of resources.Therefore can find out that this method is strong and feasibility is not high to the compatibility of protocols having, thereby produces again second method, namely keeps original power control strategy, new power control loop road is no longer additionally added in power control loop road of system held.Need to prove, when only having a power control loop road in the system, can only indicate the transmitting power of two streams to promote simultaneously or simultaneously reduction, thus so that the adjustment that the data channel transmitting power of two streams can only be made synchronous rising and descend synchronously.Suppress fully not if disturb between stream in emission process, the power adjustment will cause the decline of data receiver efficient between this single stream, thereby reduces the overall performance of system.Therefore be necessary control method and the enforcement meaning of power between the stream in the Uplink MIMO in the situation of single power control loop road are made further discussion and probe into.
Broken shape DPCH (Fractional Dedicated Physical Channel is referred to as F-DPCH) is to finish standardized a kind of down physical channel in 3GPP Release 6.The design considerations of F-DPCH is that a plurality of users are with the multiplexing same channelization code resource of time division way (TDM).F-DPCH is the channel that a plurality of users share from the angle of channel code, but observe from time domain, use each user of same channel only to take specific x time, do not occur overlapping at time shaft mutually, therefore it is a kind of dedicated channel in essence, and this also is the reason that F-DPCH is classified as dedicated channel in existing protocol.In the prior art, F-DPCH uses single fixing spreading factor (SF=256), only in order to send the 2 bit TPC instructions that are used for power control, and can carry 10 users' TPC instruction in time slot, from each user's angle, the F-DPCH bit field distribution condition of different user is distinguished to some extent.
One of uplink power control mode of prior art is to adopt F-DPCH channel bearing power control command, as shown in Figures 2 and 3, be respectively the time division way schematic diagram that F-DPCH is shared by a plurality of users when not introducing power control indication information between Uplink MIMO stream in the frame structure of F-DPCH of correlation technique and structure of time slot schematic diagram and the correlation technique.Can see, not use in the situation of MIMO that F-DPCH only is used at present the transmission user end and is used for the TPC instruction of power control.Because F-DPCH uses constant spreading factor (SF=256), therefore the bit number in a time slot is 20 bits of fixing.Because each user's TPC instruction takies 2 bits of repetition, therefore in time slot, this channel can be shared by 10 users and can not produce overlapping on time shaft of user-user information.Table 1 is the bit mapping pattern of TPC in the F-DPCH in the correlation technique, and is as shown in table 1:
Table 1
Wherein, Primary Common Control Physical Channel (P-CCPCH) is as the reference of channel timing relationship.From a complete time slot, each zone of F-DPCH can have different bit numbers to distribute, and its concrete method of salary distribution is provided by table 2, and is as shown in table 2:
Table 2
Zone outside certain user's TPC territory is seen without any data from this user's angle to send over.
For Uplink MIMO, the mode of power control between needing to determine to flow in the Uplink MIMO system, definition is used for the bit field of power control between stream, determines the suitable channel of power control information between carrying stream, and designs channel time slot format and the transmission means of this channel according to the specific definition of control bit.Aspect the channel of selecting power control information between carrying stream, mainly contain two kinds of execution modes, a kind of is the new channel that one of exploitation is used for power control information transmission between stream, and another kind is to reuse the transmission that the channel that has existed in the present agreement flows a power control information.
For being implemented in more efficiently double fluid emission in the Uplink MIMO in the situation of single power control loop road, need to consider flexible adjustment and its implementation of the transmitting power between two stream data channel.In implementation procedure, the relevant indication information of power adjustment between receiving terminal need to be notified transmitting terminal and flow, transmitting terminal is receiving between this stream after the power adjustment information, utilizes this information to adjust the distribution of two streams transmitting power on data channel, and finishes the transmission to signal.In the WCDMA system, prior art lacks effectively at the feedback approach of power adjustment information between power regulating method and stream between Uplink MIMO stream in the situation of single power control loop road, also can't be implemented in flexibly power adjustment between stream in the Uplink MIMO in the situation of single power control loop road, the gain of Uplink MIMO also can't obtain further lifting.
Summary of the invention
For being implemented in the problem of adjusting flexibly power between Uplink MIMO stream in the situation of single power control loop road in the correlation technique, the invention provides a kind of power regulating method, Apparatus and system, to address the above problem at least.
According to an aspect of the present invention, provide a kind of power regulating method.
Power regulating method according to the present invention comprises: transmitting terminal receives the Indication message that comes from receiving terminal via F-DPCH, the information of wherein, carrying in this Indication message comprises: power control (ISPC) information and power control command (TPC) information between stream; Transmitting terminal is adjusted the transmitting power of two stream data channel according to ISPC information and TPC information.
In said method, before transmitting terminal came from the Indication message of receiving terminal via the F-DPCH reception, also comprise: the receiving terminal receiving end/sending end was by the signal of two stream data channel emissions; Receiving terminal is according to the power determination TPC information of the signal that receives, and the adjustment made from respect to the transmitting power needs of mainstream data channel according to the transmitting power of secondary flow data channel in TPC information, two stream data channel, determine ISPC information, wherein, TPC information is used to indicate the transmitting power of mainstream data channel is adjusted; Receiving terminal is carried to TPC information and ISPC information on the F-DPCH channel.
In said method, receiving terminal is carried on TPC information and ISPC information on the F-DPCH channel and comprises: receiving terminal is carried to TPC information and ISPC information on the adjacent bit position of F-DPCH channel.
In said method, TPC information is positioned at before the ISPC information.
In said method, ISPC information is positioned at before the TPC information.
In said method, the transmitting power that receiving terminal sends the F-DPCH channel of carrying ISPC information and TPC information is higher than the transmitting power that receiving terminal sends the F-DPCH channel that only carries TPC information.
In said method, the transmitting power of the F-DPCH channel of carrying ISPC information and TPC information sends the high 3dB of transmitting power of the F-DPCH channel that only carries TPC information than receiving terminal.
In said method, ISPC information and the TPC information of carrying in the Indication message are made of 1 bit information respectively, and ISPC information is adjacent with TPC information.
In said method, transmitting terminal is according to the transmitting power of ISPC information and two stream data channel of TPC information adjustment, and comprising: transmitting terminal parses ISPC information and TPC information from Indication message; The ISPC information that transmitting terminal obtains according to parsing and the value of TPC information, adjust the transmitting power of two stream data channel, wherein, article two, the transmitting power of the mainstream data channel in the stream data channel is adjusted according to the indication of TPC information, if and ISPC information is identical with the value of TPC information, then the transmitting power of secondary flow data channel is carried out identical power lift adjustment operation with the transmitting power of mainstream data channel, if ISPC information is not identical with the value of TPC information, then the transmitting power of secondary flow data channel is carried out opposite power lift adjustment operation with the transmitting power of mainstream data channel.
In said method, the ISPC information that transmitting terminal obtains according to parsing and the value of TPC information, it is one of following that the transmitting power of adjusting two stream data channel comprises: if TPC information be 1 and ISPC information be 0, the transmitting power of the mainstream data that then raises channel also reduces the transmitting power of secondary flow data channel; If TPC information and ISPC information are 1, the transmitting power of the mainstream data that then raises channel and the transmitting power of secondary flow data channel; If TPC information and ISPC information are 0, then reduce the transmitting power of mainstream data channel and the transmitting power of secondary flow data channel; If TPC information be 0 and ISPC information be 1, then reduce the transmitting power of mainstream data channel and the transmitting power of the secondary flow data channel that raises.
According to a further aspect in the invention, provide a kind of power adjustment apparatus.
Power adjustment apparatus according to the present invention comprises: the first receiver module, be used for receiving the Indication message that comes from receiving terminal via F-DPCH, and wherein, the information of carrying in this Indication message comprises: ISPC information and TPC information; Adjusting module is used for the transmitting power according to ISPC information and two stream data channel of TPC information adjustment.
In accordance with a further aspect of the present invention, provide a kind of power adjustment system.
Power adjustment system according to the present invention comprises: transmitting terminal and receiving terminal; Transmitting terminal comprises above-mentioned power adjustment apparatus; Receiving terminal is used for sending Indication message via F-DPCH, and wherein, the information of carrying in this Indication message comprises: ISPC information and TPC information.
In said system, receiving terminal comprises: the second receiver module is used for receiving end/sending end by the signal of two stream data channel emissions; The first determination module is used for the power determination TPC information according to the signal that receives; The second determination module for the adjustment made from respect to the transmitting power needs of mainstream data channel according to the transmitting power of TPC information, two stream data channel secondary flow data channels, is determined ISPC information; Carrier module is used for TPC information and ISPC information are carried to the F-DPCH channel.
By the present invention, in the Uplink MIMO system that only contains single power control loop road, power indication information and TCP information are carried in the same Indication message in time notice to transmitting terminal between will flowing by receiving terminal, by transmitting terminal according to stream between power control information and TPC information, transmitting power to double-current data channel is adjusted, can't be implemented in the situation of single power control loop road the problem of adjusting flexibly power between Uplink MIMO stream in the correlation technique thereby solved, and then reach adjusting between Uplink MIMO stream and avoid extra resource overhead in the power, and the effect that realizes efficiently the double fluid emission.
Description of drawings
Accompanying drawing described herein is used to provide a further understanding of the present invention, consists of the application's a part, and illustrative examples of the present invention and explanation thereof are used for explaining the present invention, do not consist of improper restriction of the present invention.In the accompanying drawings:
Fig. 1 is the emitting structural schematic diagram according to system after the introducing Uplink MIMO of correlation technique;
Fig. 2 is according to the frame structure of the F-DPCH of correlation technique and structure of time slot schematic diagram;
Fig. 3 be according to correlation technique do not introduce power control indication information between Uplink MIMO stream the time F-DPCH time division way schematic diagram that shared by a plurality of users;
Fig. 4 is the flow chart according to the power regulating method of the embodiment of the invention;
Fig. 5 is the introducing ISPC bit information according to the embodiment of the invention, and spreading factor is 256 and frame structure and the structure of time slot schematic diagram of ISPC bit information F-DPCH when transmitting before the TPC bit information;
Fig. 6 is the introducing ISPC bit information according to the embodiment of the invention, and spreading factor is 256 and frame structure and the structure of time slot schematic diagram of TPC bit information F-DPCH when transmitting before the ISPC bit information;
Fig. 7 is the introducing ISPC bit information according to the embodiment of the invention, and spreading factor is 256 and the ISPC bit information time division way schematic diagram that F-DPCH is shared by a plurality of users when transmitting prior to the TPC bit information;
Fig. 8 is the introducing ISPC bit information according to the embodiment of the invention, and spreading factor is 256 and the TPC bit information time division way schematic diagram that F-DPCH is shared by a plurality of users when transmitting prior to the ISPC bit information;
Fig. 9 is the flow chart of power regulating method according to the preferred embodiment of the invention;
Figure 10 is the structured flowchart according to the power adjustment apparatus of the embodiment of the invention;
Figure 11 is the structured flowchart according to the power adjustment system of the embodiment of the invention;
Figure 12 is the structured flowchart of power adjustment system according to the preferred embodiment of the invention.
Embodiment
Hereinafter also describe in conjunction with the embodiments the present invention in detail with reference to accompanying drawing.Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.
Fig. 4 is the flow chart according to the power regulating method of the embodiment of the invention.The method is used in the situation of single power control loop road power between the stream of Uplink MIMO being adjusted, and as shown in Figure 4, the method mainly comprises following processing:
Step S402: transmitting terminal receives the Indication message that comes from receiving terminal via F-DPCH, wherein, the information of carrying in this Indication message comprises: power control (Inter-stream Power Control between stream, referred to as ISPC) information and power control command (Transmit Power Control is referred to as TPC) information;
Step S404: transmitting terminal is adjusted the transmitting power of two stream data channel according to ISPC information and TPC information.
In the correlation technique, in the Uplink MIMO system that only contains single power control loop road, can't adjust flexibly power between Uplink MIMO stream.Adopt method shown in Figure 4, receiving terminal will carry between ISPC information and TPC information flow the power Indication message in time notice to transmitting terminal, transmitting terminal receives the Indication message that comes from receiving terminal via F-DPCH, and adjust the transmitting power of two stream data channel according to ISPC information and TPC information, and then reached and adjusting between Uplink MIMO stream in the power effect of avoiding extra resource overhead and realizing efficiently the double fluid emission.
In a preferred implementation of the embodiment of the invention, receiving terminal can send to transmitting terminal by following steps and carry the Indication message of above-mentioned ISPC information and TPC information:
(1) the receiving terminal receiving end/sending end is by the signal of two stream data channel emissions;
(2) receiving terminal is according to the power determination TPC information of the signal that receives, and the adjustment made from respect to the transmitting power needs of mainstream data channel according to the transmitting power of secondary flow data channel in TPC information, two stream data channel, determine ISPC information, wherein, TPC information is used to indicate the transmitting power of mainstream data channel is adjusted;
(3) receiving terminal is carried to TPC information and ISPC information on the F-DPCH channel.
In a preferred implementation of the embodiment of the invention, receiving terminal is being carried on TPC information and ISPC information on the F-DPCH channel, TPC information and ISPC information can be carried on the adjacent bit position of F-DPCH channel.
In this preferred implementation, TPC information and ISPC information are carried on the adjacent bit position of F-DPCH channel can comprise following two kinds of position relationships:
(1) Fig. 5 is the introducing ISPC bit information according to the embodiment of the invention, spreading factor is 256 and frame structure and the structure of time slot schematic diagram of ISPC bit information F-DPCH when transmitting before the TPC bit information, table 3 is in the embodiment of the invention, introduce the ISPC bit information, spreading factor is a kind of preferred structure of time slot of 256 F-DPCH; As shown in Figure 5, when same user's ISPC information bit was adjacent with the TPC information bit, the ISPC information bit was prior to the TPC information bit;
(2) Fig. 6 is the introducing ISPC bit information according to the embodiment of the invention, and spreading factor is 256 and frame structure and the structure of time slot schematic diagram of TPC bit information F-DPCH when transmitting before the ISPC bit information; As shown in Figure 6, when same user's ISPC information bit was adjacent with the TPC information bit, the TPC information bit was prior to the ISPC information bit.
In another preferred implementation of the embodiment of the invention, for fear of extra resource overhead, can be when carrying ISPC information, the bit of can be multiplexing existing transmission TPC information, a bit that is about in two bits of existing transmission TPC information is used for transmission ISPC information, and another bit is used for transmission TPC information, represents the value of ISPC information and TCP information by the mapping relations shown in the table 4.
Table 3 is 256 o'clock for introducing in embodiments of the present invention ISPC bit information and spreading factor, and the relevant parameter of the concrete structure of time slot of F-DPCH and the distribution of each regional bit number are as shown in table 3:
Table 3
Table 4 is for after introducing in embodiments of the present invention the ISPC bit, and the concrete bit mapping pattern of the ISPC instruction among the F-DPCH and TPC instruction is as shown in table 4:
Table 4
Fig. 7 is the introducing ISPC bit information according to the embodiment of the invention, and spreading factor is 256 and the ISPC bit information time division way schematic diagram that F-DPCH is shared by a plurality of users when transmitting prior to the TPC bit information; And Fig. 8 is the introducing ISPC bit information according to the embodiment of the invention, and spreading factor is 256 and the TPC bit information time division way schematic diagram that F-DPCH is shared by a plurality of users when transmitting prior to the ISPC bit information.Shown in Fig. 7 and 8, when ISPC bit and TPC instruction respectively were 1 bit, the shared total number of bits of feedback of each user was 2 bits.Be under 256 the condition at spreading factor, 20 bits in time slot still can be shared by 10 users and can not produce overlapping on time shaft of user-user information.The way of spreading factor in the former protocols having of this maintenance, the bit number that can keep transmission in the time slot is constant, is 20 bits.Because be to take out 1 bit carrying ISPC information from the TPC bit information territory of repeating, the shared total bit number of each user still is 2 bits, therefore, the number of users that shares this F-DPCH can't change.Be that user as much as possible carries out time-division transmission, TPC bit information and feedback weight bit placed adjacent for taking full advantage of as far as possible all bits in the time slot.
In a preferred implementation of the embodiment of the invention, successfully receive for the F-DPCH channel that makes carrying ISPC information and TPC information can be sent out end, the transmitting power that receiving terminal sends the F-DPCH channel of carrying ISPC information and TPC information is higher than the transmitting power that receiving terminal sends the F-DPCH channel that only carries TPC information.For example, preferably, the transmitting power of the F-DPCH channel of carrying ISPC information and TPC information can only be carried than the receiving terminal emission the high 3dB of transmitting power of the F-DPCH channel of TPC information.
In a preferred implementation of the embodiment of the invention, transmitting terminal is in the transmitting power according to ISPC information and two stream data channel of TPC information adjustment, can from Indication message, parse first ISPC information and TPC information, wherein, ISPC information and TPC information are made of 1 bit information respectively in this Indication message, and ISPC information is adjacent with TPC information, then the ISPC information that obtains according to parsing and the value of TPC information, adjust the transmitting power of two stream data channel, wherein, article two, the transmitting power of the mainstream data channel in the stream data channel is adjusted according to the indication of TPC information, if and ISPC information is identical with the value of TPC information, then secondary flow is carried out identical power lift adjustment operation with respect to main flow to its data channel, if ISPC information is not identical with the value of TPC information, then secondary flow is carried out opposite power lift adjustment operation with respect to main flow to its data channel.
Wherein, the ISPC information that transmitting terminal obtains according to parsing and the value of TPC information, the transmitting power of adjusting two stream data channel include but not limited to one of following mode:
(1) if TPC information is " 1 ", indication main flow its transmitting power that raises, when ISPC information was " 0 " simultaneously, then the secondary flow data channel need reduce its transmitting power;
(2) if TPC information is " 1 ", indication main flow its transmitting power that raises, when ISPC information is " 1 " simultaneously, secondary flow data channel its transmitting power that need raise then;
(3) if TPC information is " 0 ", the indication main flow reduces its transmitting power, and when ISPC information was " 0 " simultaneously, then the secondary flow data channel need reduce its transmitting power.
(4) if TPC information is " 0 ", the indication main flow reduces its transmitting power, when simultaneously ISPC information is " 1 ", and secondary flow data channel its transmitting power that need raise then.
Table 5 is the summaries for the embodiment of the invention above-mentioned four kinds of situations in the Uplink MIMO actual transmissions.Transmitting terminal can according to the corresponding relation shown in the table 5, be adjusted main flow power and secondary flow power after the value that parses current I SPC information and TPC information.
Table 5
In embodiments of the present invention, to receive main flow correct when receiving terminal, and when receiving the secondary flow mistake, receiving terminal judges that the channel condition of mainstream data transmission experience is better, and the channel condition of secondary flow transfer of data experience is relatively poor, therefore can suitably reduce the transmitting power of main flow and not affect the normal reception of main flow by TPC and ISPC, and the transmitting power that promotes secondary flow with as far as possible so that the data of secondary flow when transmitting, can be correctly received next time.To receive secondary flow correct when receiving terminal, and when receiving the main flow mistake, receiving terminal judges that the channel condition of secondary flow transfer of data experience is better, and the channel condition of mainstream data transmission experience is relatively poor, therefore can suitably reduce the transmitting power of secondary flow and not affect the normal reception of secondary flow by TPC and ISPC, and promote the transmitting power of main flow so that the data of main flow can be correctly received as much as possible next time when transmitting.When receiving terminal all mistake occurs to the reception of two streams, receiving terminal judges that the channel condition of two Stream Data Transmissions experience is all relatively poor, the transmitting power that therefore can suitably promote two streams by TPC and ISPC with as far as possible so that the data of two streams when transmitting, can be correctly received next time.
Below in conjunction with preferred embodiment shown in Figure 9 said method is further described.
Fig. 9 is the flow chart of power regulating method according to the preferred embodiment of the invention.As shown in Figure 9, UE is equivalent to the transmitting terminal of the embodiment of the invention, and NodeB is equivalent to the receiving terminal of the embodiment of the invention, and the method can comprise following treatment step:
Step S902: for the UE with MIMO emissivities, NodeB is according to the signal of current this UE that receives at two antenna transmissions, estimate this UE up channel situation, and determine in conjunction with the situation that current data receives how this UE adjusts the transmitting power of main flow and secondary flow in launching next time.
Wherein, secondary flow receives successfully if this UE main flow when current reception takes defeat, and then forwards step S904 to; Secondary flow takes defeat if this UE main flow when current reception receives successfully, then forwards step S910 to; If this UE main flow and secondary flow when current reception all take defeat, then forward step S916 to;
Step S904:NodeB can be chosen as the transmitting power of its rising main flow, reduces simultaneously the transmitting power of secondary flow;
Step S906: the UE that reduces simultaneously the transmitting power of secondary flow for the transmitting power of determining the rising main flow, NodeB is by disposing TPC and the ISPC data field in the F-DPCH channel for this UE, indicate the transmitting power of this UE rising main flow to reduce simultaneously the transmitting power of secondary flow.The F-DPCH channel can adopt execution mode shown in Figure 8 about TPC and ISPC data field mapping configuration;
The F-DPCH channel that step S908:UE demodulation is disposed obtains the indication that rising main flow transmitting power reduces the secondary flow transmitting power simultaneously from the F-DPCH channel, on this basis, and when UE launched in next time, according to power change step Δ
TPCIts main flow transmitting power that raises reduces its secondary flow transmitting power simultaneously.Wherein, power change step Δ
TPCSpecified by the higher level parameters based on UE, general value is 2dB or 1dB, and flow process finishes.
Step S910:NodeB can be chosen as the transmitting power of its raise simultaneously main flow and secondary flow;
Step S912: for the UE of definite raise simultaneously main flow and secondary flow transmitting power, NodeB is by being TPC and ISPC data field in this UE configuration F-DPCH channel, indicate raise the simultaneously transmitting power of main flow and secondary flow of this UE, the F-DPCH channel is seen Fig. 8 about the concrete mode of TPC and ISPC data field mapping configuration;
The F-DPCH channel that step S914:UE demodulation is disposed, from obtain to raise the simultaneously indication of main flow and secondary flow transmitting power of F-DPCH channel, on this basis, when UE launched in next time, according to power change step Δ
TPCIts main flow that raises simultaneously and secondary flow transmitting power.Wherein, power change step Δ
TPCSpecified by the higher level parameters based on UE, general value is 2dB or 1dB, and flow process finishes.
Step S916:NodeB can be chosen as its transmitting power that reduces main flow, the transmitting power of the secondary flow that raises simultaneously;
Step S918: for raise the simultaneously UE of transmitting power of secondary flow of the transmitting power that determine to reduce main flow, NodeB is by being TPC and ISPC data field in this UE configuration F-DPCH channel, indicates raise the simultaneously transmitting power of secondary flow of the transmitting power of this UE reduction main flow.The F-DPCH channel is seen Fig. 8 about the concrete mode of TPC and ISPC data field mapping configuration;
The F-DPCH channel that step S920:UE demodulation is disposed to reduce raise the simultaneously indication of secondary flow transmitting power of main flow transmitting power from the F-DPCH channel, on this basis, and when UE launched in next time, according to power change step Δ
TPCReduce its main flow transmitting power its secondary flow transmitting power that raises simultaneously.Wherein, power change step Δ
TPCSpecified by the higher level parameters based on UE, general value is 2dB or 1dB, and flow process finishes.
Figure 10 is the structured flowchart according to the power adjustment apparatus of the embodiment of the invention.It is distolateral that this device is positioned at above-mentioned transmission, as shown in figure 10, this power adjustment apparatus comprises: the first receiver module 10 is used for receiving the Indication message that comes from receiving terminal via F-DPCH, the information of wherein, carrying in this Indication message comprises: ISPC information and TPC information; Adjusting module 20 is connected with the first receiver module 10, is used for the transmitting power according to ISPC information and two stream data channel of TPC information adjustment.
In power adjustment apparatus shown in Figure 10, the first receiver module 10 receives the Indication message that comes from receiving terminal via F-DPCH, adjusting module 20 is adjusted the transmitting power of two stream data channel according to ISPC information and TPC information, and then has reached adjusting power between Uplink MIMO stream and do not cause extra resource overhead, realize the effect of double fluid emission more efficiently.
In a preferred implementation of the embodiment of the invention, adjusting module 20 can parse first ISPC information and TPC information from Indication message, wherein, ISPC information and TPC information are made of 1 bit information respectively in this Indication message, and ISPC information is adjacent with TPC information, then the ISPC information that obtains according to parsing and the value of TPC information, adjust the transmitting power of two stream data channel, wherein, article two, the transmitting power of the mainstream data channel in the stream data channel is adjusted according to the indication of TPC information, if and ISPC information is identical with the value of TPC information, then secondary flow is carried out identical power lift adjustment operation with respect to main flow to its data channel, if ISPC information is not identical with the value of TPC information, then secondary flow is carried out opposite power lift adjustment operation with respect to main flow to its data channel.
For example, adjusting module 20 transmitting power that can adjust two stream data channel includes but not limited to one of following mode:
(1) if TPC information is " 1 ", indication main flow its transmitting power that raises, when ISPC information was " 0 " simultaneously, then the secondary flow data channel need reduce its transmitting power;
(2) if TPC information is " 1 ", indication main flow its transmitting power that raises, when ISPC information is " 1 " simultaneously, secondary flow data channel its transmitting power that need raise then;
(3) if TPC information is " 0 ", the indication main flow reduces its transmitting power, and when ISPC information was " 0 " simultaneously, then the secondary flow data channel need reduce its transmitting power.
(4) if TPC information is " 0 ", the indication main flow reduces its transmitting power, when simultaneously ISPC information is " 1 ", and secondary flow data channel its transmitting power that need raise then.
Figure 11 is the structured flowchart according to the power adjustment system of the embodiment of the invention.As shown in figure 11, this power adjustment system comprises: transmitting terminal 30 and receiving terminal 40.Wherein, transmitting terminal 30 can comprise the described power adjustment apparatus of Figure 10; Receiving terminal 40 with transmitting terminal 30 wireless connections, is used for sending Indication message via F-DPCH, and wherein, the information of carrying in this Indication message comprises: ISPC information and TPC information.
In power adjustment system shown in Figure 11, receiving terminal 40 will carry between ISPC information and TPC information flow the power indication information in time notice to transmitting terminal 30, transmitting terminal 30 receives the Indication message that comes from receiving terminal 40 via F-DPCH, and adjust the transmitting power of two stream data channel according to ISPC information and TPC information, and then reached the effect of avoiding extra resource overhead and realizing efficiently the double fluid emission in the power between Uplink MIMO stream adjusting.
In a preferred implementation of the embodiment of the invention, as shown in figure 12, in above-mentioned power adjustment system, receiving terminal 40 can comprise: the second receiver module 400 is used for receiving end/sending end by the signal of two stream data channel emissions; The first determination module 402 is used for the power determination TPC information according to the signal that receives; The second determination module 404 for the adjustment made from respect to the transmitting power needs of mainstream data channel according to the transmitting power of TPC information, two stream data channel secondary flow data channels, is determined ISPC information; Carrier module 406 is used for TPC information and ISPC information are carried to the F-DPCH channel.
Preferably, when carrier module 406 is carried on TPC information and ISPC information on the F-DPCH channel, TPC information and ISPC information can be carried on the adjacent bit position of F-DPCH channel.
Preferably, TPC information and ISPC information are carried on the adjacent bit position of F-DPCH channel and can comprise following two kinds of position relationships:
(1) when same user's ISPC information bit was adjacent with the TPC information bit, the ISPC information bit was prior to the TPC information bit; The preferred working method of said system can referring to Fig. 5, repeat no more herein.
(2) when same user's ISPC information bit was adjacent with the TPC information bit, the TPC information bit was prior to the ISPC information bit.The preferred working method of said system can referring to Fig. 6, repeat no more herein.
Preferably, the transmitting power of the F-DPCH channel of receiving terminal 40 transmission carrying ISPC information and TPC information is higher than the F-DPCH channel that does not carry ISPC information and TPC information;
Preferably, the transmitting power of the F-DPCH channel of carrying ISPC information and TPC information is than the high 3dB of transmitting power of the F-DPCH channel that does not carry ISPC information and TPC information;
As can be seen from the above description, the present invention has realized following technique effect: in the Uplink MIMO system that only contains single power control loop road, power does not cause extra resource overhead, more efficiently realization double fluid emission between adjustment Uplink MIMO stream; Simultaneously, original information bit placed adjacent in power control information bit and the channel between the stream that will newly introduce in the embodiment of the invention can take full advantage of the bit in the channel, with the maximum number of users of carrying in a time slot; In addition, the embodiment of the invention has also improved the transmitted power of the channel of carrying introducing ISPC, thereby avoided causing the repeat its transmission mechanism of original channel to change owing to introducing ISPC, the problem that causes transmitting terminal correctly not receive has guaranteed that feedback information (being the indication information in the embodiment of the invention) can be sent out proper true reception.
Obviously, those skilled in the art should be understood that, above-mentioned each module of the present invention or each step can realize with general calculation element, they can concentrate on the single calculation element, perhaps be distributed on the network that a plurality of calculation elements form, alternatively, they can be realized with the executable program code of calculation element, thereby, they can be stored in the storage device and be carried out by calculation element, and in some cases, can carry out step shown or that describe with the order that is different from herein, perhaps they are made into respectively each integrated circuit modules, perhaps a plurality of modules in them or step are made into the single integrated circuit module and realize.Like this, the present invention is not restricted to any specific hardware and software combination.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. a power regulating method is characterized in that, comprising:
Transmitting terminal receives the Indication message that comes from receiving terminal via broken shape DPCH F-DPCH, and wherein, the information of carrying in the described Indication message comprises: power control ISPC information and power control command TPC information between stream;
Described transmitting terminal is adjusted the transmitting power of two stream data channel according to described ISPC information and described TPC information.
2. method according to claim 1 is characterized in that, before described transmitting terminal comes from the Indication message of described receiving terminal via described F-DPCH reception, also comprises:
Described receiving terminal receives described transmitting terminal by the signal of described two stream data channel emission;
Described receiving terminal is according to the described TPC information of power determination of the described signal that receives, and the adjustment made from respect to the transmitting power needs of mainstream data channel according to the transmitting power of secondary flow data channel in described TPC information, described two stream data channel, determine described ISPC information, wherein, described TPC information is used to indicate the transmitting power of described mainstream data channel is adjusted;
Described receiving terminal is carried to described TPC information and described ISPC information on the described F-DPCH channel.
3. method according to claim 2 is characterized in that, described receiving terminal is carried on described TPC information and described ISPC information on the described F-DPCH channel and comprises:
Described receiving terminal is carried to described TPC information and described ISPC information on the adjacent bit position of described F-DPCH channel.
4. method according to claim 3 is characterized in that, described TPC information is positioned at before the described ISPC information.
5. method according to claim 3 is characterized in that, described ISPC information is positioned at before the described TPC information.
6. method according to claim 2, it is characterized in that the transmitting power that described receiving terminal sends the F-DPCH channel of the described ISPC information of carrying and described TPC information is higher than the transmitting power that described receiving terminal sends the F-DPCH channel that only carries described TPC information.
7. method according to claim 6 is characterized in that, the transmitting power of the F-DPCH channel of the described ISPC information of described carrying and described TPC information sends the high 3dB of transmitting power of the F-DPCH channel that only carries described TPC information than described receiving terminal.
8. each described method in 7 according to claim 1 is characterized in that described ISPC information and the described TPC information of carrying in the described Indication message are made of 1 bit information respectively, and described ISPC information is adjacent with described TPC information.
9. method according to claim 8 is characterized in that, described transmitting terminal is adjusted the transmitting power of described two stream data channel according to described ISPC information and described TPC information, comprising:
Described transmitting terminal parses described ISPC information and described TPC information from described Indication message;
The described ISPC information that described transmitting terminal obtains according to parsing and the value of described TPC information, adjust the transmitting power of described two stream data channel, wherein, the transmitting power of the mainstream data channel in described two stream data channel is adjusted according to the indication of described TPC information, if and described ISPC information is identical with the value of described TPC information, then the transmitting power of described secondary flow data channel is carried out identical power lift adjustment operation with the transmitting power of described mainstream data channel, if described ISPC information is not identical with the value of described TPC information, then the transmitting power of described secondary flow data channel is carried out opposite power lift adjustment operation with the transmitting power of described mainstream data channel.
10. method according to claim 9 is characterized in that, it is one of following that the described ISPC information that described transmitting terminal obtains according to parsing and the value of described TPC information, the transmitting power of adjusting described two stream data channel comprise:
If described TPC information be 1 and described ISPC information be 0, the transmitting power of the described mainstream data channel that then raises also reduces the transmitting power of described secondary flow data channel;
If described TPC information and described ISPC information are 1, the transmitting power of the described mainstream data channel that then raises and the transmitting power of described secondary flow data channel;
If described TPC information and described ISPC information are 0, then reduce the transmitting power of described mainstream data channel and the transmitting power of described secondary flow data channel;
If described TPC information be 0 and described ISPC information be 1, then reduce the transmitting power of described mainstream data channel and the transmitting power of the described secondary flow data channel that raises.
11. a power adjustment apparatus is characterized in that, comprising:
The first receiver module is used for receiving the Indication message that comes from receiving terminal via broken shape DPCH F-DPCH, and wherein, the information of carrying in the described Indication message comprises: power control ISPC information and power control command TPC information between stream;
Adjusting module is used for the transmitting power according to described ISPC information and two stream data channel of described TPC information adjustment.
12. a power adjustment system is characterized in that, comprising: transmitting terminal and receiving terminal;
Described transmitting terminal comprises: the device described in the claim 10;
Described receiving terminal is used for sending Indication message via F-DPCH to described transmitting terminal, and wherein, the information of carrying in the described Indication message comprises: power control ISPC information and power control command TPC information between stream.
13. system according to claim 12 is characterized in that, described receiving terminal comprises:
The second receiver module is used for receiving described transmitting terminal by the signal of two stream data channel emissions;
The first determination module is used for the described TPC information of power determination according to the described signal that receives;
The second determination module for the adjustment made from respect to the transmitting power needs of mainstream data channel according to the transmitting power of described TPC information, described two stream data channel secondary flow data channels, is determined described ISPC information;
Carrier module is used for described TPC information and described ISPC information are carried to described F-DPCH channel.
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| CN 201110323838 CN103068026A (en) | 2011-10-21 | 2011-10-21 | Power adjustment method and power adjustment device and power adjustment system |
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| CN 201110323838 CN103068026A (en) | 2011-10-21 | 2011-10-21 | Power adjustment method and power adjustment device and power adjustment system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106793051A (en) * | 2016-11-17 | 2017-05-31 | 清华大学 | Data transmission method, receiving terminal and transmitting terminal |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106793051A (en) * | 2016-11-17 | 2017-05-31 | 清华大学 | Data transmission method, receiving terminal and transmitting terminal |
| CN106793051B (en) * | 2016-11-17 | 2019-09-20 | 清华大学 | Data transmission method and receiving end |
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Application publication date: 20130424 |