CN101499831B - Method for auxiliary information feedback - Google Patents
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- CN101499831B CN101499831B CN200810057522XA CN200810057522A CN101499831B CN 101499831 B CN101499831 B CN 101499831B CN 200810057522X A CN200810057522X A CN 200810057522XA CN 200810057522 A CN200810057522 A CN 200810057522A CN 101499831 B CN101499831 B CN 101499831B
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Abstract
The invention discloses a method for carrying out feedback of auxiliary information, comprising the following steps: determining a first training sequence offset collection as demodulation reference symbols of data and a second training sequence offset collection used for carrying out feedback of auxiliary information in the training sequence offset collection corresponding to a basic training sequence; and using the training sequence offset of the second training sequence offset collection to carry out feedback of auxiliary information for users who are not dispatched currently. The technical proposal disclosed by the invention leads the users to be capable of carrying out in-time feedback of auxiliary information.
Description
Technical field
The present invention relates to mobile communication technology, relate in particular to the method for carrying out feedback of auxiliary information in a kind of time division multiplexing (TDD) system.
Background technology
In moving communicating field; The high speed data channels that high speed downlink packet inserts in (HSDPA)/high speed uplink packet access (HSUPA), the Long Term Evolution systems such as (LTE) adopts technology such as adaptive coding and modulating (AMC), smart antenna, multiple-input and multiple-output (MIMO) to improve the spectrum efficiency of system usually; But these Technology Needs obtain channel information promptly and accurately, to select best modulation coding mode (MCS), figuration vector (like weighted factor), precoding battle array (Code Word) etc. respectively; In addition, when carrying out transfer of data, also need obtain channel quality indication (CQI, Channel Quality Indicator) information of transfer of data, so that carry out quality control according to this CQI information; In addition, whether send success, also need confirmation of receipt (ACK)/not confirmation of receipt (NACK) information of feedback data etc. in order to detect data.
But no matter be channel information, CQI information or ACK/NACK information etc.; These supplementarys all need be carried out feedback promptly and accurately; Even do not have the non-active state of transfer of data when (comprise temporarily and not being scheduled) temporarily, need obtain supplementary yet.With the channel information is example; If when free of data is transmitted, there is not the feedback of channel information; Then system is when carrying out transfer of data next time; Only can use the channel information out-of-date or that lost efficacy that data transfer is fed back before following to dispatch, it is inaccurate therefore may to cause MCS, figuration vector, precoding battle array etc. to be selected.But in the existing TDD system, thereby these supplementarys perhaps need can't be fed back with data field binding transmission in real time; Thereby perhaps take the independent feedback of spread spectrum code channel and tied up the user plane resource; For example; In the prior art; Utilize the training sequence (Midamble) of up companion data territory transmission to select the figuration factor of smart antenna, utilize the CQI Information Selection MCS of high-speed shared indication channel (HS-SICH) feedback.But the existing TDD system only just carries out the feedback of supplementary because sign indicating number is resource-constrained when the user has transfer of data (comprise and being scheduled), when the user Shi Buhui that is not scheduled distributes dedicated feedback channel, does not also just have feedback of auxiliary information.Thus it is clear that, in the TDD system, still do not have a kind of effectively real-time feedback of auxiliary information scheme.
Summary of the invention
In view of this, a kind of method of carrying out feedback of auxiliary information is provided among the present invention, so that when the user is not scheduled, still can carry out feedback of auxiliary information.
Method of carrying out feedback of auxiliary information provided by the present invention comprises:
From the corresponding training sequence deviation set of basic training sequences, determine second training sequence deviation set of gathering and be used to carry out feedback of auxiliary information as first training sequence deviation of demodulation reference symbols of data;
For current not scheduled user, utilize the training sequence deviation in said second training sequence deviation set to carry out feedback of auxiliary information.
Preferably, said for current not scheduled user, utilize training sequence deviation in the set of said second training sequence deviation to carry out feedback of auxiliary information and comprise:
The radio network controller of network side or base station are that the non-any active ues branch that comprises current not scheduled user is used in training sequence deviation and relevant bearer information thereof in second training sequence deviation set of carrying out feedback of auxiliary information;
According to said relevant bearer information, network side or user terminal utilize said training sequence deviation to carry out feedback of auxiliary information.
Preferably, said relevant bearer information comprises: subframe position in cycle period, the cycle period and the time slot position in the subframe;
Perhaps comprise: with the mapping and/or the timing relationship of scheduling indicating channel, shared service channel or Dedicated Traffic Channel.
Wherein, said non-any active ues is: scheduling interval is greater than the user of the scheduling interval thresholding of setting; Or be: translational speed is greater than the user of the translational speed thresholding of setting; Or be: data volume is lower than the user that the duration of setting thresholding reaches the lasting duration of setting in the buffer area; Perhaps: present type of service is for setting the user of type of service.
Preferably; This method further comprises: at user's scheduling interval during less than the scheduling interval thresholding set; Or in user's translational speed during less than the translational speed thresholding set; Or user's free of data arrives or when continuous time of transmission arriving this time threshold in buffer area, or when the current setting type of service of user finishes, stop the feedback of said supplementary.
Wherein, this method further comprises: in that the user is current when transfer of data is arranged, stop the feedback of said supplementary.
Preferably, this method further comprises: the power control that training sequence during said second training sequence deviation is gathered and relevant bearer transmission of Information thereof are carried out closed loop and/or open loop.
Wherein, said supplementary comprises: whether data are above a kind of or combination in any in the confirmation of receipt/not confirmation of receipt information of the information of setting thresholding, data in channel information, CQI information, day line options information, precoding information, traffic performance information, professional activation or the information of mourning in silence, the buffer memory.
Wherein, said supplementary is the confirmation of receipt/not confirmation of receipt information of data, or the professional activation or the information of mourning in silence, or whether data surpass the information of setting thresholding in the buffer memory, or day line options information; Said training sequence deviation is one; Saidly utilize training sequence deviation to carry out feedback of auxiliary information to be: represent through whether sending said training sequence deviation whether the packet that receives is wrong; Or whether business is in active period; Or whether data surpass the setting thresholding in the buffer memory, or do not select the setting antenna to carry out data and send.
Perhaps, said supplementary is the confirmation of receipt beared information of confirmation of receipt/not of data, or the professional activation or the information of mourning in silence, or data surpass and set threshold information in the buffer memory, or day line options information; Said training sequence deviation is a pair of; Saidly utilize training sequence deviation to carry out feedback of auxiliary information to be: the packet through an expression of sending in the said a pair of training sequence deviation receives is wrong; Or business is in active period, or data surpass and set thresholding in the buffer memory, or selects some antennas to carry out data and send; Or select a certain group of antenna to carry out data and send; The another one of sending in the said a pair of training sequence deviation representes correctly to receive packet, or business is in quiet period, or data are lower than the setting thresholding in the buffer memory; Or select another antenna to carry out data and send, or select other one group of antenna to carry out data and send.
Preferably, said feedback of auxiliary information is up feedback of auxiliary information.
Wherein, Said according to relevant bearer information; User terminal utilizes said training sequence deviation to carry out further comprising before the feedback of auxiliary information: the radio network controller of network side or base station are sent said training sequence deviation and relevant bearer information thereof through public or dedicated channel transmission to user terminal.
Preferably; This method further comprises: sending the training sequence deviation in the set of second training sequence deviation on a plurality of carrier waves of user terminal in multicarrier system at the same time or separately, is that the best carrier wave of user terminal selecting channel conditions carries out transfer of data and/or scheduling for network side.
Can find out from such scheme; In the embodiment of the invention; From the corresponding training sequence deviation set of basic training sequences; Determine second training sequence deviation set of gathering and be used to carry out feedback of auxiliary information as first training sequence deviation of demodulation reference symbols of data,, utilize the training sequence deviation in said second training sequence deviation set to carry out feedback of auxiliary information for the current user who is not scheduled.Thereby make and still have supplementary to feed back when not being scheduled in that the user is current.With the channel information is example, when current not being scheduled, also carries out the feedback of channel information, and then system can dispatch according to real-time channel information when carrying out transfer of data next time, has guaranteed the accuracy that MCS, figuration vector, precoding battle array etc. are selected.
Description of drawings
Fig. 1 is for carrying out the exemplary process diagram of the method for feedback of auxiliary information among the present invention;
Fig. 2 is for carrying out the method flow diagram of feedback of auxiliary information in the embodiment of the invention one;
Fig. 3 is for carrying out the method flow diagram of feedback of auxiliary information in the embodiment of the invention two.
Embodiment
Among the present invention; Consider the limited of spread spectrum code resources in time-division characteristic and the TDD system of TDD system; In the TDD system, can't come the real-time feedback supplementary by continuous dedicated pilot sign indicating number on service time, but with respect to resource-constrained spreading code, the training sequence in the TDD system (Midamble) resource is but abundant relatively; Therefore can consider under current situation about not being scheduled, to use the training sequence territory to carry out the feedback of supplementary separately.
Consider again in some system of TDD; Each base station assigns has a basic training sequences, and each user in this base station uses the difference skew (abbreviation training sequence deviation) of this basic training sequences, and (when promptly carrying out transfer of data, this training sequence deviation is bound transmission with data field between data field as demodulation reference symbols of data; Afterwards; Receiving terminal carries out channel estimating according to this training sequence, obtains channel information, and according to this channel information the data field of following is carried out demodulation).
Owing to basic training sequences can be constructed a plurality of training sequence deviation according to the mode of cyclic shift, and the training sequence deviation number that adopts different offset spacers to obtain is different.With length is that the basic training sequences of 128 chips is an example, if 8 chips of each skew then can obtain 16 training sequence deviation after the skew; If 16 chips of each skew then can obtain 8 training sequence deviation.Therefore; In the embodiment of the invention; Can be from the corresponding training sequence deviation set of basic training sequences; Determine training sequence deviation set (, among this paper this training sequence deviation set being called the set of first training sequence deviation) and be used to carry out the training sequence deviation set (, among this paper this training sequence deviation set being called the set of second training sequence deviation) of feedback of auxiliary information for ease of describing for ease of describing as demodulation reference symbols of data.Afterwards, when the current free of data of user is transmitted, utilize the training sequence deviation in said second training sequence deviation set to carry out feedback of auxiliary information.Wherein, training sequence deviation in the set of reference symbols and data field are bound transmission.
For making the object of the invention, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, to further explain of the present invention.
Fig. 1 is for carrying out the exemplary process diagram of the method for feedback of auxiliary information among the present invention.As shown in Figure 1, this flow process comprises the steps:
In this step, the set of first training sequence deviation can be confirmed according to training sequence allocative decision of the prior art.For example,, then can know, when binding transmission with data field according to acquiescence training sequence allocative decision of the prior art if a basic training sequences is counted K according to the training sequence deviation number that particular offset obtains at interval; The span of K can be 16,14,12,10; 8,6,4,2.
With length is that the basic training sequences of 128 chips is an example; When the K when confirming to bind transmission with data field was 8, then this first training sequence deviation set correspondingly comprised: this basic training sequences is carried out 8 training sequence deviation obtaining after the cyclic shift according to the offset spacers of 16 chips.
In addition, the set of first training sequence deviation also can be confirmed according to other existing scheme that maybe will have.
In this step, the set of second training sequence deviation can be the set that is different from the set of first training sequence deviation, and the definite of this set also can have multiple mode.
For example; Set comprises the situation of 8 training sequence deviation that basic training sequences carries out according to the offset spacers of 16 chips obtaining after the cyclic shift for above-mentioned first training sequence deviation, and the set of second training sequence deviation can comprise: 16 training sequence deviation that basic training sequences carries out obtaining after the cyclic shift according to the offset spacers of 8 chips deduct all or part of in 8 training sequence deviation after 8 training sequence deviation in the set of first training sequence deviation.
And for example; If first training sequence deviation set comprises basic training sequences and carry out 4 training sequence deviation obtaining after the cyclic shift according to the offset spacers of 32 chips that then the set of second training sequence deviation can comprise: 8 training sequence deviation that basic training sequences carries out obtaining after the cyclic shift according to the offset spacers of 16 chips deduct all or part of in 4 training sequence deviation after 4 training sequence deviation in the set of first training sequence deviation; Perhaps second training sequence deviation set can comprise: 16 training sequence deviation that basic training sequences carries out obtaining after the cyclic shift according to the offset spacers of 8 chips deduct all or part of in 12 training sequence deviation after 4 training sequence deviation in the set of first training sequence deviation.
In addition, the set of second training sequence deviation also can be confirmed according to other scheme.
In this step, according to actual needs, supplementary can be various information.For example, supplementary can be a kind of or combination in any in the information such as data surpass a certain setting thresholding in channel information, CQI information, day line options information, precoding information, traffic performance information, professional activation or the information of mourning in silence, the buffer memory information, ACK/NACK information.
In addition, feedback of auxiliary information can be up feedback of auxiliary information, also can be descending feedback of auxiliary information.Carry out feedback of auxiliary information in order to utilize the training sequence deviation in the set of second training sequence deviation; Can distribute the training sequence deviation of carrying out in used second training sequence deviation set of feedback of auxiliary information for non-any active ues such as the current users who is not scheduled by radio network controller (RNC) or base station (the Node B) of network side; And the training sequence deviation of being distributed notified to user terminal; Also can set the relevant bearer information such as time interval resource of sending this training sequence deviation simultaneously and (promptly carry out the relevant information of feedback of auxiliary information; The cycle period that for example feeds back, subframe that takies and timeslot number etc.).
For example, if the feedback of supplementary is carried out the training sequence deviation in then gathering for the second selected training sequence deviation according to certain cycle period circulation; Can set that this training sequence deviation when carrying out feedback of auxiliary information need take the timeslot number in the subframe, the cycle period (for example, can be the integral multiple of subframe lengths, represent every a few sub-frame circulation primary) that feeds back and moment of in this cycle, feeding back (for example; Can indicate the specific sub-frame in this cycle; Which sub-frame in the each circulation of the expression institute interval) equivalent-load information, when then carrying out feedback of auxiliary information, can be according to this cycle period; When each cycle period arrives; If the user is not scheduled, the setting subframe in this cycle then is carried at selected training sequence deviation in the intermediate code territory of setting time slot of this subframe and sends.For up feedback of auxiliary information, also need to give user terminal with the relevant bearer information prior notice that sets.During concrete the notice, can use Channel Transmission public or special use to notify.
And for example; When the training sequence deviation in using the set of second training sequence deviation is carried out the ACK/NACK feedback, can be each scheduling indicating channel, for example High-Speed Shared Control Channel (HS-SCCH); The dedicated channel absolute grant channel (E-AGCH) that strengthens; Physical Random Access Channel (FPACH) or shared service channel, like high speed descending sharing channel (HS-DSCH), the special uplink channel of enhancing (E-DCH) is set corresponding training sequence deviation and is used for feeding back ACK/nack message.The concrete delivery time of training sequence deviation is through confirming with the predefine timing relationship of scheduling indicating channel or shared service channel.Equally, for up feedback of auxiliary information, the corresponding relation prior notice that also needs to dispatch indicating channel or shared service channel and training sequence deviation is given user terminal.During concrete the notice, can use Channel Transmission public or special use to notify.
Wherein, The RNC of network side or base station can impose a condition to the user distributes training sequence deviation and relevant bearer information thereof in the set of second training sequence deviation according to certain, that is, and and when user's current state satisfies when imposing a condition; Can determine that the user is non-any active ues; Trigger the feedback of supplementary, be user's assignment information, utilize the training sequence deviation in second training sequence deviation set that is distributed to carry out feedback of auxiliary information.
Imposing a condition of above-mentioned triggering feedback of auxiliary information can be the scheduling interval thresholding of setting, and Mms for example when user's scheduling interval during greater than Mms, then carries out information distribution, triggers feedback of auxiliary information; Can also be the translational speed thresholding of setting,, then carry out information distribution, trigger feedback of auxiliary information when user's translational speed during greater than this translational speed thresholding; Can also be that amount of user data is lower than the lasting setting duration Sms that sets thresholding in the buffer area, amount of user data be lower than the duration of setting thresholding and reaches the setting duration in buffer area, then carries out information distribution, triggers feedback of auxiliary information; In addition, can also be the type of service of setting, like VoIP professional (when the conversation of certain direction was mourned in silence, the data that stop this direction were sent but the transmission of maintenance training sequence deviation, thought that the activation conversation of other direction provides feedback of auxiliary information).In addition, can also there be other to trigger imposing a condition of feedback of auxiliary information, enumerates no longer one by one here.
After carrying out feedback of auxiliary information, accordingly, also can stop the feedback of this supplementary according to certain imposing a condition.Wherein, stop to impose a condition of feedback of auxiliary information and can be and the corresponding condition of imposing a condition of above-mentioned triggering feedback of auxiliary information, for example; It can be the scheduling interval thresholding of setting; Mms for example when user's scheduling interval during less than Mms, then stops the feedback of supplementary; Can also be the translational speed thresholding of setting,, then stop the feedback of supplementary when user's translational speed during less than this translational speed thresholding; Can also be in the buffer area user's free of data arrive or buffer memory in the setting thresholding of data volume, when user's free of data arrive or buffer memory in data volume be lower than first and set thresholding and/or be higher than second when setting thresholding, then stop the feedback of supplementary; In addition, can also be the type of service of setting, when the service ending of the type of service of setting, then stop the feedback of supplementary; In addition, corresponding other triggers imposing a condition of feedback of auxiliary information, can also have other to stop to impose a condition of feedback of auxiliary information, enumerates no longer one by one here.For up feedback of auxiliary information, can send the indication that stops feedback of auxiliary information to user terminal by the RNC or the base station of network side.During concrete the indication, can use Channel Transmission public or special use to indicate.
Perhaps, also can set the lasting duration that carries out feedback of auxiliary information, after carrying out feedback of auxiliary information,, then stop the feedback of supplementary when reaching the lasting duration that sets.For up feedback of auxiliary information, the lasting duration that can will be set by the RNC or the base station of network side is notified to user terminal.During concrete the notice, can use Channel Transmission public or special use to notify.
Or, after carrying out feedback of auxiliary information, transfer of data is arranged or be scheduled if the user is current, then stop the feedback of supplementary.
Among the present invention, can further control, and power control can comprise: closed power control and open Loop Power control training sequence transmission the carrying out power in the set of second training sequence deviation.
Be fed back to example to carry out the upstream auxiliary supplementary information,, can set the power control instruction listening period for the user in advance for closed power control; Then the user monitors the power control adjustment instruction from network side according to this power control instruction listening period; Correspondingly, network side issues the power control adjustment instruction that is used to adjust transmitting power (TPC) and/or uplink synchronous (SS) according to this power control instruction listening period to the user, after the user listens to power control adjustment instruction; Power and synchronisation offset according to this power control adjustment instruction adjustment transmission training sequence; Further, if the user monitors less than power control adjustment instruction, then can carry out open loop power control.Perhaps, can not set the power control instruction listening period, and network side do not issue power control when instruction adjustment yet, then the user can carry out conventional open loop power control or part path loss compensation power control.
Be example with the situation of carrying out up feedback of auxiliary information below, above-mentioned method be described in detail through enumerating several embodiment.
Embodiment one:
In the present embodiment, with feedback channel information, and the situation of employing closed-loop power control is an example.Fig. 2 is for carrying out the method flow diagram of feedback of auxiliary information in the embodiment of the invention one.As shown in Figure 2, this flow process comprises the steps:
When can setting up in the sub-district, the layoutprocedure in this step carries out; Or the cell forward access channel status (eFACH that increase strengthens in the sub-district; Enhanced CELL_FACH) or data connect under the situation of continuity (CPC) function, perhaps also can carry out constantly or under the scene at other.
Wherein, parameter set " K1 " can be occurrence, side-play amount or the index of each training sequence deviation in the set of first training sequence deviation, and parameter set " K1 " can consistent also redefinable with value of the prior art.
Parameter set " K2 " is occurrence, side-play amount or the index of each training sequence deviation in the set of second training sequence deviation.In the prior art, only there is the set of first training sequence deviation; In the embodiment of the invention, except having the set of first training sequence deviation, also there is the set of second training sequence deviation.
" TPC/SS time gap " is used to indicate the power control instruction listening period.
Wherein, base station or RNC send to the user through broadcasting or common signal channel with the configuration parameter among the present invention " K1 ", " K2 " and " TPC/SS time gap ".
In this step; Can get into the RRC connection status the user; As dedicated channel status (CELL_DCH) or shared channel state (CELL_FACH) or paging state (URA_PCH, CELL_PCH) after, distribute for satisfying the user who imposes a condition who triggers feedback of auxiliary information.Concrete parameter of distributing can comprise: " midamble shift ", " time slot index ", " UL training burst offset " and " UL training burst repetition period (L) ".
Wherein, " midamble shift " is used to indicate when the user is current and sends the training sequence deviation that the intermediate code signal uses when not being scheduled but need carrying out up feedback.
" time slot index " is used for indicating when utilizing above-mentioned training sequence deviation to carry out feedback of channel information, and this training sequence deviation need be carried on the time slot position on the subframe.
" UL training burst repetition period (L) " is used to indicate the cycle period that carries out feedback of channel information, for example, is the subframe of 5ms for length, if L is 4, representes that then cycle period is the length of 4 sub-frame, i.e. 20ms.
" UL training burst offset " is used in reference to and is shown in the moment of carrying out feedback of channel information in the above-mentioned cycle period; For example; If " UL training burst offset " value is 2, then be illustrated in the feedback of carrying out supplementary in the 2nd sub-frame in the cycle period of 4 sub-frame length.
In this step; When user terminal can satisfy condition n mod L=" ULtraining burst offset " at current subframe numbers n, in the intermediate code territory of the time slot of current subframe " time slot index " appointment, send the training sequence deviation of RNC or base station assigns.
In this step; The base station can be together multiplexing with a plurality of power control adjustment instructions of a plurality of users; Send through a down physical channel, concrete transmitting time can be: after the training sequence deviation that receives from user terminal, and the moment behind the power control instruction listening period of interval.
In the present embodiment, when adopting open loop power control, can need not configuration " TPC/SS time gap " parameter.
Embodiment two:
In the present embodiment, with feeding back ACK/nack message, and the situation of employing closed-loop power control is an example.Fig. 3 is for carrying out the method flow diagram of feedback of auxiliary information in the embodiment of the invention two.As shown in Figure 3, this flow process comprises the steps:
When can setting up in the sub-district, the layoutprocedure in this step carries out; Or the cell forward access channel status (eFACH that increase strengthens in the sub-district; Enhanced CELL_FACH) or data connect under the situation of continuity (CPC) function, perhaps also can carry out constantly or under the scene at other.
Wherein, " K1 ", " K2 " and the implication of " TPC/SS time gap " are consistent with implication in the step 201 shown in Figure 2.
Wherein, base station or RNC send to user terminal through broadcasting or common signal channel with the configuration parameter among the present invention " K1 ", " K2 " and " TPC/SS time gap ".
In this step; For each scheduling indicating channel set one to one training sequence deviation to or training sequence deviation, set simultaneously receive corresponding training sequence deviation behind a certain particular schedule indicating channel to or the feedback time of training sequence deviation (be descending receive the scheduling indicating channel constantly with its corresponding training sequence deviation to or feedback time difference constantly of training sequence deviation be a predefine constant).Similar with the timing relationship of HS-SCCH in the existing protocol and HS-SICH; Through the predefine timing relationship can simplify signaling process and omit " midamble shift ", " time slot index ", " UL training burst offset ", " the isoparametric configuration of UL training burst repetition period (L) distributes for satisfying the user who imposes a condition who triggers feedback of auxiliary information.Concrete parameter of distributing can comprise: the corresponding relation between " midambleshift ", " time slot index ", " TPC/SS time gap " and training sequence deviation and the control channel
Wherein, " midamble shift " is used to indicate and distributes to the current training sequence deviation that does not have the user of transfer of data.
" time slot index " is used for indicating when utilizing above-mentioned training sequence deviation to carry out feedback of channel information, and this training sequence deviation need be carried on the time slot position on the subframe.
" TPC/SS time gap " is used to indicate the power control instruction listening period.In addition, though, be not user class, need in giving each user's indication, duplicate this configuration relation because the corresponding relation of midamble is a cell-level in the HS-SCCH and second subclass.
In this step; No matter user terminal receives downlink data through which kind of mode, like the indication according to down control channel, from shared channel, receives data; Or in the preset Resource Block of non-scheduling, receive data etc.; After the specified data transmission is correct, send certain training sequence deviation of training sequence deviation or training sequence deviation centering, feeding back ACK information; After the recognition data failure, do not send another training sequence deviation of this training sequence deviation or transmission training sequence deviation centering; Perhaps, can behind successful recognition data, not send said training sequence deviation yet, after the recognition data failure, send this training sequence deviation, the feedback nack message.
Step 305, base station at particular time-slot or receive the training sequence deviation from user terminal expeced time, determine whether carrying out data re-transmission according to whether.Further, the base station issues the power control adjustment instruction that is used to adjust TPC and/or SS according to " TPC/SS timegap " indicated power control instruction listening period to the user.
In this step, behind successful recognition data, send the situation of training sequence deviation for user terminal, the base station is if receive this training sequence deviation within the scheduled time, representes that then data send successfully; Otherwise the expression data are sent failure, can carry out data re-transmission.Vice versa.
In addition; The base station can be together multiplexing with a plurality of power control adjustment instructions of a plurality of users; Send through a down physical channel, concrete transmitting time can be: after the training sequence deviation that receives from user terminal, and the moment behind the power control instruction listening period of interval.
Equally, in the present embodiment, when adopting open loop power control, can need not configuration " TPC/SS time gap " parameter.
Similar with the situation of above-mentioned feeding back ACK/nack message; When supplementary is the professional activation or the information of mourning in silence, or whether data surpass the information of setting thresholding in the buffer memory, or during day line options information; Selected training sequence deviation can be one; Accordingly, when utilizing training sequence deviation to carry out feedback of auxiliary information, can represent whether business is in active period through whether sending said training sequence deviation; Or whether data surpass the setting thresholding in the buffer memory, or do not select the setting antenna to carry out data and send.
Perhaps, selected training sequence deviation can be for a pair of, accordingly; When utilizing training sequence deviation to carry out feedback of auxiliary information, can be in active period, or data surpass the setting thresholding in the buffer memory through an expression business of sending in the said a pair of training sequence deviation; Or select some antennas to carry out data and send; Or select a certain group of antenna to carry out data and send, the another one of sending in the said a pair of training sequence deviation representes that business is in quiet period, or data are lower than the setting thresholding in the buffer memory; Or select another antenna to carry out data and send, or select other one group of antenna to carry out data and send.
In addition; In multicarrier system; User terminal can send the training sequence deviation in the set of second training sequence deviation at the same time or separately on all or some carrier waves, be that the best carrier wave of user terminal selecting channel conditions carries out data transmission/scheduling for network side.
Above-described specific embodiment; The object of the invention, technical scheme and beneficial effect have been carried out further explain, and institute it should be understood that the above is merely preferred embodiment of the present invention; Be not to be used to limit protection scope of the present invention; All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (12)
1. a method of carrying out feedback of auxiliary information is characterized in that, this method comprises:
From the corresponding training sequence deviation set of basic training sequences, determine second training sequence deviation set of gathering and be used to carry out feedback of auxiliary information as first training sequence deviation of demodulation reference symbols of data;
For current not scheduled user, utilize the training sequence deviation in said second training sequence deviation set to carry out feedback of auxiliary information;
Said for current not scheduled user, utilize training sequence deviation in the set of said second training sequence deviation to carry out feedback of auxiliary information and comprise:
The radio network controller of network side or base station are that the non-any active ues branch that comprises current not scheduled user is used in training sequence deviation and relevant bearer information thereof in second training sequence deviation set of carrying out feedback of auxiliary information;
According to said relevant bearer information, network side or user terminal utilize said training sequence deviation to carry out feedback of auxiliary information.
2. the method for claim 1 is characterized in that, said relevant bearer information comprises: subframe position in cycle period, the cycle period and the time slot position in the subframe;
Perhaps comprise: with the mapping and/or the timing relationship of scheduling indicating channel, shared service channel or Dedicated Traffic Channel.
3. the method for claim 1 is characterized in that, said non-any active ues is: scheduling interval is greater than the user of the scheduling interval thresholding of setting; Or be: translational speed is greater than the user of the translational speed thresholding of setting; Or be: data volume is lower than the user that the duration of setting thresholding reaches the lasting duration of setting in the buffer area; Perhaps: present type of service is for setting the user of type of service.
4. method as claimed in claim 3; It is characterized in that; This method further comprises: at user's scheduling interval during less than the scheduling interval thresholding set, or in user's translational speed during less than the translational speed thresholding set, or user's free of data arrives or when continuous time of transmission arriving this time threshold in buffer area; Or when the current setting type of service of user finishes, stop the feedback of said supplementary.
5. the method for claim 1 is characterized in that, this method further comprises: in that the user is current when transfer of data is arranged, stop the feedback of said supplementary.
6. like each described method in the claim 1 to 5, it is characterized in that this method further comprises: the power control that training sequence during said second training sequence deviation is gathered and relevant bearer transmission of Information thereof are carried out closed loop and/or open loop.
7. like each described method in the claim 1 to 5; It is characterized in that said supplementary comprises: whether data are above a kind of or combination in any in the confirmation of receipt/not confirmation of receipt information of the information of setting thresholding, data in channel information, CQI information, day line options information, precoding information, traffic performance information, professional activation or the information of mourning in silence, the buffer memory.
8. method as claimed in claim 7 is characterized in that, said supplementary is the confirmation of receipt/not confirmation of receipt information of data, or the professional activation or the information of mourning in silence, or whether data surpass the information of setting thresholding in the buffer memory, or day line options information; Said training sequence deviation is one;
Saidly utilize training sequence deviation to carry out feedback of auxiliary information to be: represent through whether sending said training sequence deviation whether the packet that receives is wrong; Or whether business is in active period; Or whether data surpass the setting thresholding in the buffer memory, or do not select the setting antenna to carry out data and send.
9. the method described in claim 7 is characterized in that, said supplementary is the confirmation of receipt beared information of confirmation of receipt/not of data, or the professional activation or the information of mourning in silence, or data surpass and set threshold information in the buffer memory, or day line options information; Said training sequence deviation is a pair of;
Saidly utilize training sequence deviation to carry out feedback of auxiliary information to be: the packet through an expression of sending in the said a pair of training sequence deviation receives is wrong; Or business is in active period, or data surpass and set thresholding in the buffer memory, or selects some antennas to carry out data and send; Or select a certain group of antenna to carry out data and send; The another one of sending in the said a pair of training sequence deviation representes correctly to receive packet, or business is in quiet period, or data are lower than the setting thresholding in the buffer memory; Or select another antenna to carry out data and send, or select other one group of antenna to carry out data and send.
10. like each described method in the claim 1 to 5, it is characterized in that said feedback of auxiliary information is up feedback of auxiliary information.
11. method as claimed in claim 10; It is characterized in that; Said according to relevant bearer information; User terminal utilizes said training sequence deviation to carry out further comprising before the feedback of auxiliary information: the radio network controller of network side or base station are sent said training sequence deviation and relevant bearer information thereof through public or dedicated channel transmission to user terminal.
12. like each described method in the claim 1 to 5; It is characterized in that; This method further comprises: sending the training sequence deviation in the set of second training sequence deviation on a plurality of carrier waves of user terminal in multicarrier system at the same time or separately, is that the best carrier wave of user terminal selecting channel conditions carries out transfer of data and/or scheduling for network side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810057522XA CN101499831B (en) | 2008-02-02 | 2008-02-02 | Method for auxiliary information feedback |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810057522XA CN101499831B (en) | 2008-02-02 | 2008-02-02 | Method for auxiliary information feedback |
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| CN101499831A CN101499831A (en) | 2009-08-05 |
| CN101499831B true CN101499831B (en) | 2012-11-28 |
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| CN200810057522XA Expired - Fee Related CN101499831B (en) | 2008-02-02 | 2008-02-02 | Method for auxiliary information feedback |
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| US8867500B2 (en) * | 2011-06-09 | 2014-10-21 | Qualcomm Incorporated | Systems and methods for reducing acknowledgment message overhead |
| CN105120442A (en) * | 2015-07-15 | 2015-12-02 | 游振海 | Signaling information transmission method and device |
| WO2018107358A1 (en) | 2016-12-13 | 2018-06-21 | 广东欧珀移动通信有限公司 | Uplink power control method and device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1973473A (en) * | 2004-06-23 | 2007-05-30 | 英特尔公司 | Closed loop MIMO systems using codebooks for feedback |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1973473A (en) * | 2004-06-23 | 2007-05-30 | 英特尔公司 | Closed loop MIMO systems using codebooks for feedback |
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