CN103037524A - Double-period dynamic configuration method for ratio between TDD (Time Division Duplex) uplink subframes and TDD downlink subframes, base station, system and communication equipment - Google Patents

Double-period dynamic configuration method for ratio between TDD (Time Division Duplex) uplink subframes and TDD downlink subframes, base station, system and communication equipment Download PDF

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CN103037524A
CN103037524A CN2013100209629A CN201310020962A CN103037524A CN 103037524 A CN103037524 A CN 103037524A CN 2013100209629 A CN2013100209629 A CN 2013100209629A CN 201310020962 A CN201310020962 A CN 201310020962A CN 103037524 A CN103037524 A CN 103037524A
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communication equipment
configuration parameter
kind communication
signaling
configuration
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CN103037524B (en
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张晨璐
刘峰
曹一卿
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Dongguan Yulong Telecommunication Technology Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
Dongguan Yulong Telecommunication Technology Co Ltd
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Priority to PCT/CN2014/070783 priority patent/WO2014111038A1/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0044Arrangements for allocating sub-channels of the transmission path allocation of payload
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058Allocation criteria
    • H04L5/0073Allocation arrangements that take into account other cell interferences
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/14Two-way operation using the same type of signal, i.e. duplex
    • H04L5/1469Two-way operation using the same type of signal, i.e. duplex using time-sharing
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/16Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service]
    • H04W28/18Negotiating wireless communication parameters

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a double-period dynamic configuration method for ratio between TDD (Time Division Duplex) uplink subframes and TDD downlink subframes, which is used for configuring a ratio between the time division duplex uplink subframes and the time division duplex downlink subframes of first communication equipment which supports an eIMTA function and second communication equipment which does not support the eIMTA function. The dynamic configuration method comprises the following steps of: determining a first configuration parameter for the ratio between the time division duplex uplink subframes and the time division duplex downlink subframes, which is to be applied to the first communication equipment; determining a corresponding second configuration parameter according to one or more history first configuration parameter used by the first communication equipment; and applying the first configuration parameter to the first communication equipment within a first reconfiguration period and applying the second configuration parameter to the second communication equipment within a second reconfiguration period. The invention further discloses a corresponding base station, a corresponding system and corresponding communication equipment. Through the adoption of a technical scheme of the invention, the different configuration parameters can be adopted for different communication equipments during hybrid networking of the communication equipments with different versions, so that performance degradation of partial communication equipments due to the use of single parameter is avoided.

Description

Binary cycle Dynamic Configuration, base station, system and the communication equipment of TDD ascending-descending subframes ratio
Technical field
The present invention relates to communication technical field, in particular to binary cycle Dynamic Configuration, base station, system and the communication equipment of TDD ascending-descending subframes ratio.
Background technology
The new generation of wireless development communication technologies is swift and violent in recent years, compares third generation wireless communication technology, and it is simple that Technology of New Generation Mobile Communications has the network architecture, and signal time delay is little, the high communication quality, the plurality of advantages such as speed is fast.Classify according to up-downgoing service integration mode, Technology of New Generation Mobile Communications can be divided into TDD(Time Division Duplex, time division duplex) system and FDD(Frequency Division Duplex, frequency division multiplexing) system.Compare the FDD system, the TDD system is higher to the utilization ratio of system resource, and the wireless frame structure of different ascending-descending subframes ratios can according to the difference of up-downgoing traffic carrying capacity, be used in the base station between the base station.But existing TDD technology has limited the flexible deployment of TDD system ascending-descending subframes proportional arrangement because intersection is disturbed the existence of (Cross-interference).As shown in Figure 1, if terminal 1 is served in base station 1, terminal 2 is served in base station 2, then when base station 1 current use descending sub frame 102, base station 2 current use sub-frame of uplink 104, except the normal signal 2 between base station 1 and terminal 1, base station 2 and the terminal 2, the interference signal 1 that also exists terminal 1 and different uplink-downlink configuration between terminal 2, base station 1 and the base station 2 to cause is namely intersected and is disturbed.
In order to address this problem, the 3GPP of International Standards Organization has started eIMTA project (Further enhancements to LTE Time Division Duplex (TDD) forDownlink-Uplink Interference Management and Traffic Adaptation) in May, 2010, research is at redaction UE(User Equipment, subscriber equipment) with under the legacy version UE mixed networking condition how to realize service adaptation and the interference management of TDD system, wherein, redaction UE refers to support R12(the 12nd release protocol of 3GPP) and the user terminal of follow-up protocol version, and legacy version UE refers to support release protocol before the R12 of 3GPP (such as R10, R11 etc.) user terminal.
After technical research after a while, 3GPP has drawn preliminary conclusion:
● the reprovision cycle of TDD ascending-descending subframes proportional arrangement shorter (being that the reprovision frequency is higher), larger to the raising of systematic function;
● legacy version UE can't receive " dynamically adjusting order " of new definition, and therefore, legacy version UE can't support the short reprovision cycle, and can only realize macrocyclic reprovision by " system information change order ";
● eIMTA is in order to keep the backward compatibility to legacy version UE, need to be to the normal behaviour of some UE, such as descending measurement, SRS(ascending pilot frequency) send, HARQ(Hybrid AutomaticRepeat Request, the mixed automatic retransfer request) retransmit to wait and carry out some restriction.These restrictions may reduce the systematic function of legacy version UE.
In the correlative study of 3GPP, the reprovision algorithm of some TDD ascending-descending subframes proportional arrangement reprovisions has been proposed.In existing reprovision algorithm, system determines the TDD ascending-descending subframes proportional arrangement that next reprovision will adopt in the cycle according to the current business loading condition, namely calculate in dynamic adjusting range (in a residential quarter), the upstream data total amount to be sent of all UE and the ratio of the outgoing data total amount that the base station is about to issue, and according to this outgoing data ratio, in seven kinds of TDD ascending-descending subframes ratios of 3GPP agreement regulation (as shown in Figure 2) find with it immediate configuration, with this configuration as next coupling cycle TDD ascending-descending subframes proportional arrangement to be used.Particularly, as shown in Figure 2, LTE(A corresponding to different TDD ascending-descending subframes ratios) in the radio frames, the special subframe 202, the sub-frame of uplink 204 that comprise are different with the quantity of descending sub frame 206.
Because legacy version UE does not support the short reprovision cycle.Therefore, for existing reprovision algorithm, or use short weight to join the cycle (starting the eIMTA function), sacrifice legacy version UE performance; Use the long reprovision cycle (closing the eIMTA function), sacrifice redaction UE performance.Thus, the performance of legacy version UE and redaction UE can't be taken into account, and dynamic-configuration can't demonstrate fully the gain of the overall performance of system.
Therefore, need a kind of new technical scheme, when the communication equipment mixed networking of different editions, can adopt different configuration parameters for different communication equipment, cause the hydraulic performance decline of part communication equipment when avoiding adopting single parameter.
Summary of the invention
The present invention just is being based on the problems referred to above, a kind of new technical scheme has been proposed, when the communication equipment mixed networking of different editions, can adopt different configuration parameters for different communication equipment, cause the hydraulic performance decline of part communication equipment when avoiding adopting single parameter.
In view of this, the present invention proposes a kind of binary cycle Dynamic Configuration of TDD ascending-descending subframes ratio, be used for the first kind communication equipment of supporting the eIMTA function and do not support the Equations of The Second Kind communication equipment of eIMTA function to carry out the configuration of time division duplex ascending-descending subframes ratio, described Dynamic Configuration comprises: definite first configuration parameter that need to be applied to the time division duplex ascending-descending subframes ratio of first kind communication equipment; According to used one or more historical the first configuration parameters of described first kind communication equipment, determine the second corresponding configuration parameter; Described the first configuration parameter is applied to described first kind communication equipment in the first reprovision cycle, and described the second configuration parameter is applied to described Equations of The Second Kind communication equipment in the second reprovision cycle.
In this technical scheme, first kind communication equipment is redaction UE, and the Equations of The Second Kind communication equipment is legacy version UE.For dissimilar communication equipments, adopt different configuration parameters to realize the dynamic-configuration of time division duplex ascending-descending subframes ratio, sacrifice legacy version UE performance when having avoided the use short weight to join the cycle, or use long reprovision to sacrifice redaction UE performance during the cycle, so that the performance of two class UE can be taken into account, demonstrate fully dynamic-configuration to the gain of the overall performance of system by double-periodic application.Particularly, there are seven kinds of different ascending-descending subframes ratios in seven kinds of different wireless frame structures corresponding to 3GPP regulation, and the configuration parameter here just refers to certain ascending-descending subframes ratio of therefrom selecting.In addition, " historical the first configuration parameter " refer to the current reprovision cycle and before reprovision be applied to the configuration parameter of first kind communication equipment in the cycle, certainly, also can be set to comprise current the first configuration parameter that obtains.
In technique scheme, preferably, the step of the second configuration parameter of described definite correspondence comprises: at the appointed time used the maximum configuration parameter of number of times as described the second configuration parameter in the window described first kind communication equipment; Or with described first kind communication equipment in described fixed time window in the used configuration parameter the minimum configuration parameter of upstream or downstream sub-frame number as described the second configuration parameter; Or with the described first kind communication equipment configuration parameter that the upstream or downstream sub-frame number is maximum in the used configuration parameter in described fixed time window as described the second configuration parameter; Or the configuration parameter that described first kind communication equipment is used in the cycle at a nearest reprovision is as described the second configuration parameter; Or with described first kind communication equipment at the configuration parameter that uses in the cycle when previous reprovision as described the second configuration parameter.
In this technical scheme, the first required configuration parameter of first kind communication equipment can adopt correlation technique to obtain, the ratio of the outgoing data total amount that is about to issue such as upstream data total amount to be sent and base station with all first kind communication equipments, and according to this outgoing data ratio, in seven kinds of TDD ascending-descending subframes ratios of 3GPP agreement regulation, find with it immediate configuration, this is disposed as next coupling cycle TDD ascending-descending subframes proportional arrangement to be used.And for the second configuration parameter, can be according to the actual requirements or actual conditions, use different modes to select.Certainly, what it should be appreciated by those skilled in the art is, the various ways of having mentioned in such scheme, obviously can also adopt other NM modes to select the first configuration parameter or the second configuration parameter for next reprovision cycle.
In technique scheme, preferably, before the step of the second configuration parameter of described definite correspondence, also comprise: be default at least one the associated configuration parameter of every kind of protocol definition configuration parameter; And after the step of the second configuration parameter of described definite correspondence, also comprise: obtain the described associated configuration parameter corresponding to described the second configuration parameter, and by alternative described the second configuration parameter of described associated configuration parameter, so that described associated configuration parameter is applied to described Equations of The Second Kind communication equipment.
In this technical scheme, the protocol definition configuration parameter refers to seven kinds of different ascending-descending subframes proportional arrangement having stipulated in 3GPP.Although can directly the second configuration parameter of determining according to historical the first configuration parameter be applied to the Equations of The Second Kind communication equipment, but for some actual needs, sometimes need to use the associated configuration parameter (by setting in advance the incidence relation between a plurality of configuration parameters) corresponding to the second configuration parameter, to be applied to the Equations of The Second Kind communication equipment.Certainly, obviously can be not yet by setting in advance incidence relation, such as can passing through specific algorithm, directly calculate the associated configuration parameter that real needs are applied to the Equations of The Second Kind communication equipment by the second configuration parameter of Real-time Obtaining.
In technique scheme, preferably, the described step that described the first configuration parameter is applied to described first kind communication equipment comprises: send the reprovision signaling to described first kind communication equipment, use described the first configuration parameter to inform described first kind communication equipment in the cycle at next reprovision.
In this technical scheme, by the reprovision signaling is set, so that first kind communication equipment can be learnt the configuration parameter that self need to use.Particularly, corresponding to different parameters, then can in this reprovision signaling, indicate this parameter such as every kind of ascending-descending subframes ratio, to represent corresponding ascending-descending subframes ratio.The reprovision signaling here can be the signaling that does not have in the agreement of R10/11 or other present versions, newly proposes, and also can be to have added new information in present existing signaling.Certainly, for the Equations of The Second Kind communication equipment, can inform the Equations of The Second Kind configuration parameter that it is corresponding by system message (such as SIB1).
In technique scheme, preferably, described reprovision signaling comprises: Physical Downlink Control Channel signaling, media access control signaling or radio resource control signaling.
In technique scheme, preferably, when described reprovision signaling is the Physical Downlink Control Channel signaling, in the control information of described Physical Downlink Control Channel signaling, increase by the first configuration indication territory, comprise the information of described the first configuration parameter in described the first configuration indication territory; When described reprovision signaling is the media access control signaling, in described media access control signaling, increase control element, comprise the information of described the first configuration parameter in the described control element; When described reprovision signaling is the radio resource control signaling, in described radio resource control signaling, increase by the second configuration indication territory or increase new radio resource control layer signaling, comprise the information of described the first configuration parameter in described the second configuration indication territory or the described new radio resource control layer signaling.
In this technical scheme, for Physical Downlink Control Channel (PDCCH) signaling, can be at the control information (DCI of its carrying, Downlink Control Information) increases a territory in, in order to the coupling configuration of indicating the next reprovision cycle to use, particularly, such as " TDD Config Indicator " (TDD the disposes indication) territory that can be 3 bits; For media access control (MAC) signaling, can increase special MAC layer control element (CE); For radio resource control (RRC, Radio Resource Control) signaling can increase a new information field (such as this information field being called " TDD Config Indicator ") or increase a new rrc layer signaling in the related signaling (such as " RRC Connection Reconfiguration " signaling) of rrc layer.Certainly, here " increase " refers to take present R10/11(or other R12 protocol version before) propose as the basis, comprise the use to present existing reservation position/territory among PDCCH, MAC or the RRC, or add new position/territory, thereby can be used in the information that comprises the first configuration parameter that proposes among the present invention.
In technique scheme, preferably, after described the second configuration parameter is applied to described Equations of The Second Kind communication equipment, also comprise: the actual transmissions direction of obtaining each subframe of described Equations of The Second Kind communication equipment; If the nominal transmission direction corresponding with described the second configuration parameter of the described actual transmissions direction of given sub-frame is inconsistent, then limit on the described given sub-frame operating function corresponding to described nominal transmission direction.
In this technical scheme, for originally corresponding in the second configuration parameter be the uplink/downlink subframe, and actually when being applied to the Equations of The Second Kind communication equipment, may become descending/sub-frame of uplink, thereby cause the backwards compatibility problem for the Equations of The Second Kind communication equipment.Therefore, in the situation that the problems referred to above occur, by limiting these subframes originally corresponding to the operating function of uplink/downlink, avoid having strengthened the backwards compatibility for the Equations of The Second Kind communication equipment because the data that the variation of subframe transmission direction leads to errors send or receive.
In technique scheme, preferably, when described operating function is the transfer of data behavior, the step that limits described transfer of data behavior comprises: when the actual transmissions direction of the appointment sub-frame of uplink of described Equations of The Second Kind communication equipment is down direction, forbid that described appointment sub-frame of uplink calls the upstream data of described Equations of The Second Kind communication equipment; And when the actual transmissions direction of the appointment descending sub frame of described Equations of The Second Kind communication equipment is up direction, forbid that described appointment descending sub frame calls the downlink data of described Equations of The Second Kind communication equipment.
In this technical scheme, be 10 subframes of 0 ~ 9 such as in a complete wireless frame structure, comprising sequence number, suppose that sequence number is that the actual transmissions direction of the subframe of n changes, forbid that then this subframe calls corresponding data, guarantee that the Information Security of corresponding Equations of The Second Kind communication equipment and other functional modules can access correct data.
In technique scheme, preferably, when described operating function is the measurement behavior, the step that limits described measurement behavior comprises: be the measurement result that the descending sub frame of up direction is uploaded with the actual transmissions direction, and will by the actual transmissions direction be the last measurement result uploaded of the descending sub frame of down direction or recently repeatedly the merging result of measurement result as this measurement result; And/or to limit described Equations of The Second Kind communication equipment be that 0,1,5,6 subframe place carries out down-run survey in sequence number only; And/or the actual transmissions direction is that the descending sub frame of up direction is set to the subframe without the behavior of measurement; And/or send and to forbid measuring signaling, to forbid that described Equations of The Second Kind communication equipment is at the down-run survey of actual transmissions direction as the descending sub frame place of up direction.
In this technical scheme, repeatedly " the merging result " of measurement result can be understood as measurement result is repeatedly processed according to preset algorithm, such as the mean value that calculates repeatedly measurement result, or sue for peace etc. after the different measuring result be multiply by different weights.Sequence number is that 0,1,5,6 subframe is the descending sub frame of regulation, can not be changed to sub-frame of uplink in the ascending-descending subframes configuration, thereby can not cause the backwards compatibility problem.Be set to the subframe that nothing is measured behavior by some subframes, such as MBSFN subframe (Multicast/Broadcast over Single Frequency Network, single frequency network multicast/broadcast sub-frame) or ABS subframe (Almost Blank Subframe), then these subframes just can not proceeded down-run survey, thereby can not cause the backwards compatibility problem.And adopt the mode of forbidding measuring signaling, such as time domain measurement resource limitation (the Timedomain measurement resource restriction) signaling that can use the LTE definition down-run survey is limited.
In technique scheme, preferably, when described operating function is the transmission of signaling/channel or reception behavior features, limiting the transmission of described signaling/channel or the step of reception behavior features comprises: when the actual transmissions direction of the appointment sub-frame of uplink of described Equations of The Second Kind communication equipment is down direction, forbid the up transmission signaling/channel of described appointment sub-frame of uplink; And/or to limit described Equations of The Second Kind communication equipment be the up transmission that 2 subframe place specifies signaling/channel in sequence number only; And/or to limit described Equations of The Second Kind communication equipment be the descending reception that 0,1,5,6 subframe place specifies signaling/channel in sequence number only.
In this technical scheme, when corresponding sub-frame of uplink is actual when being downlink transmission direction, need to limit, such as forbidding that this subframe uplink sends the SRS(Soundingreference signals of originally needs transmission, ascending channel detecting pilot frequency), PRACH(Physical RandomChannel, Physical Random Access Channel) etc. signaling/channel.In seven kinds of present wireless frame structures, sequence number is that 2 subframe is sub-frame of uplink, sequence number is that 0,1,5,6 subframe is descending sub frame, therefore, only carry out upstream operation, only carry out downstream operation at 0,1,5,6 work song frames at 2 work song frames by regulation, the mistake that causes in the time of can effectively avoiding the subframe transmission direction to change.
In technique scheme, preferably, also comprise: the characteristic information that obtains described first kind communication equipment or described Equations of The Second Kind communication equipment; When the value of described characteristic information more than or equal to predetermined threshold value, then open described eIMTA function, otherwise close described eIMTA function.
In this technical scheme, obtain and compare by the characteristic information to the communication equipment of specified type, can carry out automatic switch according to actual conditions to the eIMTA function well, performance loss and the inconvenience of avoiding the manual control switch to cause.
In technique scheme, preferably, described characteristic information comprise following at least one or a combination set of: the total quantity of described first kind communication equipment or described Equations of The Second Kind communication equipment, be in the quantity of the communication equipment of active state in described first kind communication equipment or the described Equations of The Second Kind communication equipment, described first kind communication equipment or outgoing data amount corresponding to described Equations of The Second Kind communication equipment, shared ratio in the quantity of all communication equipments of described total quantity in specified scope, described all in specified scope of quantity that are in active state are in shared ratio in the quantity of communication equipment of active state, shared ratio in described outgoing data amount all outgoing data amounts in specified scope.
In technique scheme, preferably, also comprise: the configuration parameter of using in the current reprovision cycle when described the second configuration parameter and described Equations of The Second Kind communication equipment is forbidden notifying described the second configuration parameter to described first kind communication equipment not simultaneously.
In this technical scheme, because in the prior art, when the parameter (such as the ascending-descending subframes ratio) of system information when changing, need by the paging(beep-page message) inform all UE, make the parameter after UE uses the variation that receives, thereby when the second configuration parameter changes, to be sent to all UE, so that the UE of redaction had both received the first configuration parameter, receive again the second configuration parameter, cause it correctly to process.Therefore, by forbidding sending the second configuration parameter to the UE of redaction, thereby avoid the UE of redaction to receive simultaneously the situation of various configurations parameter, can correctly realize the configuration of ascending-descending subframes ratio.
According to a further aspect in the invention, a kind of base station has also been proposed, the first kind communication equipment of supporting the eIMTA function and the Equations of The Second Kind communication equipment of not supporting the eIMTA function are served in described base station, described base station comprises: the parameter determining unit, be used for definite first configuration parameter that need to be applied to the time division duplex ascending-descending subframes ratio of first kind communication equipment, and according to used one or more historical the first configuration parameters of described first kind communication equipment, determine the second corresponding configuration parameter; The parameter applying unit is used for described the first configuration parameter is applied to described first kind communication equipment in the first reprovision cycle, and described the second configuration parameter is applied to described Equations of The Second Kind communication equipment in the second reprovision cycle.
In this technical scheme, first kind communication equipment is redaction UE, and the Equations of The Second Kind communication equipment is legacy version UE.For dissimilar communication equipments, adopt different configuration parameters to realize the dynamic-configuration of time division duplex ascending-descending subframes ratio, sacrifice legacy version UE performance when having avoided the use short weight to join the cycle, or use long reprovision to sacrifice redaction UE performance during the cycle, so that the performance of two class UE can be taken into account, demonstrate fully dynamic-configuration to the gain of the overall performance of system by double-periodic application.Particularly, there are seven kinds of different ascending-descending subframes ratios in seven kinds of different wireless frame structures corresponding to 3GPP regulation, and the configuration parameter here just refers to certain ascending-descending subframes ratio of therefrom selecting.In addition, " historical the first configuration parameter " refer to the current reprovision cycle and before reprovision be applied to the configuration parameter of first kind communication equipment in the cycle, certainly, also can be set to comprise current the first configuration parameter that obtains.
In technique scheme, preferably, described parameter determining unit was at the appointed time used the maximum configuration parameter of number of times in the window with described first kind communication equipment, described first kind communication equipment minimum configuration parameter of upstream or downstream sub-frame number in the used configuration parameter in described fixed time window, described first kind communication equipment maximum configuration parameter of upstream or downstream sub-frame number in the used configuration parameter in described fixed time window, the configuration parameter that described first kind communication equipment uses in the cycle at a nearest reprovision or described first kind communication equipment at the configuration parameter that uses in the cycle when previous reprovision as described the second configuration parameter.
In this technical scheme, the first required configuration parameter of first kind communication equipment can adopt correlation technique to obtain, the ratio of the outgoing data total amount that is about to issue such as upstream data total amount to be sent and base station with all first kind communication equipments, and according to this outgoing data ratio, in seven kinds of TDD ascending-descending subframes ratios of 3GPP agreement regulation, find with it immediate configuration, this is disposed as next coupling cycle TDD ascending-descending subframes proportional arrangement to be used.And for the second configuration parameter, can be according to the actual requirements or actual conditions, use different modes to select.Certainly, what it should be appreciated by those skilled in the art is, the various ways of having mentioned in such scheme, obviously can also adopt other NM modes to select the first configuration parameter or the second configuration parameter for next reprovision cycle.
In technique scheme, preferably, also comprise: related setting unit is used to every kind of protocol definition configuration parameter to preset at least one associated configuration parameter; Wherein, described parameter determining unit is also obtained the described associated configuration parameter corresponding to described the second configuration parameter, and substitutes described the second configuration parameter by described associated configuration parameter, so that described associated configuration parameter is applied to described Equations of The Second Kind communication equipment.
In this technical scheme, the protocol definition configuration parameter refers to seven kinds of different ascending-descending subframes proportional arrangement having stipulated in 3GPP.Although can directly the second configuration parameter of determining according to historical the first configuration parameter be applied to the Equations of The Second Kind communication equipment, but for some actual needs, sometimes need to use the associated configuration parameter (by setting in advance the incidence relation between a plurality of configuration parameters) corresponding to the second configuration parameter, to be applied to the Equations of The Second Kind communication equipment.Certainly, obviously can be not yet by setting in advance incidence relation, such as can passing through specific algorithm, directly calculate the associated configuration parameter that real needs are applied to the Equations of The Second Kind communication equipment by the second configuration parameter of Real-time Obtaining.
In technique scheme, preferably, described parameter applying unit comprises: the signalling subelement, be used for sending the reprovision signaling to described first kind communication equipment, and use described the first configuration parameter to inform described first kind communication equipment in the cycle at next reprovision.
In this technical scheme, by the reprovision signaling is set, so that first kind communication equipment can be learnt the configuration parameter that self need to use.Particularly, corresponding to different parameters, then can in this reprovision signaling, indicate this parameter such as every kind of ascending-descending subframes ratio, to represent corresponding ascending-descending subframes ratio.The reprovision signaling here can be the signaling that does not have in the agreement of R10/11 or other present versions, newly proposes, and also can be to have added new information in present existing signaling.Certainly, for the Equations of The Second Kind communication equipment, can inform the Equations of The Second Kind configuration parameter that it is corresponding by system message (such as SIB1).
In technique scheme, preferably, described signalling subelement is by Physical Downlink Control Channel signaling, media access control signaling or the described reprovision signaling of radio resource control signalling.
In technique scheme, preferably, described parameter applying unit comprises that also signaling generates subelement, be used for: when described reprovision signaling is the Physical Downlink Control Channel signaling, in the control information of described Physical Downlink Control Channel signaling, increase by the first configuration indication territory, comprise the information of described the first configuration parameter in described the first configuration indication territory; When described reprovision signaling is the media access control signaling, in described media access control signaling, increase control element, comprise the information of described the first configuration parameter in the described control element; When described reprovision signaling is the radio resource control signaling, in described radio resource control signaling, increase by the second configuration indication territory or increase new radio resource control layer signaling, comprise the information of described the first configuration parameter in described the second configuration indication territory or the described new radio resource control layer signaling.
In this technical scheme, for Physical Downlink Control Channel (PDCCH) signaling, can be at the control information (DCI of its carrying, Downlink Control Information) increases a territory in, in order to the coupling configuration of indicating the next reprovision cycle to use, particularly, such as " TDD Config Indicator " (TDD the disposes indication) territory that can be 3 bits; For media access control (MAC) signaling, can increase special MAC layer control element (CE); For radio resource control (RRC, Radio Resource Control) signaling can increase a new information field (such as this information field being called " TDD Config Indicator ") or increase a new rrc layer signaling in the related signaling (such as " RRC Connection Reconfiguration " signaling) of rrc layer.Certainly, here " increase " refers to take present R10/11(or other R12 protocol version before) propose as the basis, comprise the use to present existing reservation position/territory among PDCCH, MAC or the RRC, or add new position/territory, thereby can be used in the information that comprises the first configuration parameter that proposes among the present invention.
In technique scheme, preferably, also comprise: the direction judging unit, for the actual transmissions direction of each subframe of obtaining described Equations of The Second Kind communication equipment; The behavior limiting unit is used in the described actual transmissions direction of the given sub-frame nominal transmission direction inconsistent situation corresponding with described the second configuration parameter, limits on the described given sub-frame operating function corresponding to described nominal transmission direction.
In this technical scheme, for originally corresponding in the second configuration parameter be the uplink/downlink subframe, and actually when being applied to the Equations of The Second Kind communication equipment, may become descending/sub-frame of uplink, thereby cause the backwards compatibility problem for the Equations of The Second Kind communication equipment.Therefore, in the situation that the problems referred to above occur, by limiting these subframes originally corresponding to the operating function of uplink/downlink, avoid having strengthened the backwards compatibility for the Equations of The Second Kind communication equipment because the data that the variation of subframe transmission direction leads to errors send or receive.
In technique scheme, preferably, when described operating function is the transfer of data behavior, described behavior limiting unit limits described transfer of data behavior and comprises: when the actual transmissions direction of the appointment sub-frame of uplink of described Equations of The Second Kind communication equipment was down direction, described behavior limiting unit forbade that described appointment sub-frame of uplink calls the upstream data of described Equations of The Second Kind communication equipment; And when the actual transmissions direction of the appointment descending sub frame of described Equations of The Second Kind communication equipment was up direction, described behavior limiting unit forbade that described appointment descending sub frame calls the downlink data of described Equations of The Second Kind communication equipment.
In this technical scheme, be 10 subframes of 0 ~ 9 such as in a complete wireless frame structure, comprising sequence number, suppose that sequence number is that the actual transmissions direction of the subframe of n changes, forbid that then this subframe calls corresponding data, guarantee that the Information Security of corresponding Equations of The Second Kind communication equipment and other functional modules can access correct data.
In technique scheme, preferably, when described operating function is the measurement behavior, described behavior limiting unit limits described measurement behavior and comprises: ignore the actual transmissions direction and be the measurement result that the descending sub frame of up direction is uploaded, and will by the actual transmissions direction be the last measurement result uploaded of the descending sub frame of down direction or recently repeatedly the merging result of measurement result as this measurement result; And/or to limit described Equations of The Second Kind communication equipment be that 0,1,5,6 subframe place carries out down-run survey in sequence number only; And/or the actual transmissions direction is that the descending sub frame of up direction is set to the subframe without the behavior of measurement; And/or send and to forbid measuring signaling, to forbid that described Equations of The Second Kind communication equipment is at the down-run survey of actual transmissions direction as the descending sub frame place of up direction.
In this technical scheme, repeatedly " the merging result " of measurement result can be understood as measurement result is repeatedly processed according to preset algorithm, such as the mean value that calculates repeatedly measurement result, or sue for peace etc. after the different measuring result be multiply by different weights.Sequence number is that 0,1,5,6 subframe is the descending sub frame of regulation, can not be changed to sub-frame of uplink in the ascending-descending subframes configuration, thereby can not cause the backwards compatibility problem.Be set to the subframe that nothing is measured behavior by some subframes, such as MBSFN subframe (Multicast/Broadcast over Single Frequency Network, single frequency network multicast/broadcast sub-frame) or ABS subframe (Almost Blank Subframe), then these subframes just can not proceeded down-run survey, thereby can not cause the backwards compatibility problem.And adopt the mode of forbidding measuring signaling, such as time domain measurement resource limitation (the Timedomain measurement resource restriction) signaling that can use the LTE definition down-run survey is limited.
In technique scheme, preferably, when described operating function is the transmission of signaling/channel or reception behavior features, described behavior limiting unit limits the transmission of described signaling/channel or the step of reception behavior features comprises: when the actual transmissions direction of the appointment sub-frame of uplink of described Equations of The Second Kind communication equipment is down direction, forbid the up transmission signaling/channel of described appointment sub-frame of uplink; And/or to limit described Equations of The Second Kind communication equipment be the up transmission that 2 subframe place specifies signaling/channel in sequence number only; And/or to limit described Equations of The Second Kind communication equipment be the descending reception that 0,1,5,6 subframe place specifies signaling/channel in sequence number only.
In this technical scheme, when corresponding sub-frame of uplink is actual when being downlink transmission direction, need to limit, such as forbidding that this subframe uplink sends the SRS(Soundingreference signals of originally needs transmission, ascending channel detecting pilot frequency), PRACH(Physical RandomChannel, Physical Random Access Channel) etc. signaling/channel.In seven kinds of present wireless frame structures, sequence number is that 2 subframe is sub-frame of uplink, sequence number is that 0,1,5,6 subframe is descending sub frame, therefore, only carry out upstream operation, only carry out downstream operation at 0,1,5,6 work song frames at 2 work song frames by regulation, the mistake that causes in the time of can effectively avoiding the subframe transmission direction to change.
In technique scheme, preferably, also comprise: information acquisition unit, for the characteristic information that obtains described first kind communication equipment or described Equations of The Second Kind communication equipment; The functional switch unit is used for value at described characteristic information and opens described eIMTA function in more than or equal to the situation of predetermined threshold value, otherwise closes described eIMTA function.
In this technical scheme, obtain and compare by the characteristic information to the communication equipment of specified type, can carry out automatic switch according to actual conditions to the eIMTA function well, performance loss and the inconvenience of avoiding the manual control switch to cause.
In technique scheme, preferably, described characteristic information comprise following at least one or a combination set of: the total quantity of described first kind communication equipment or described Equations of The Second Kind communication equipment, be in the quantity of the communication equipment of active state in described first kind communication equipment or the described Equations of The Second Kind communication equipment, described first kind communication equipment or outgoing data amount corresponding to described Equations of The Second Kind communication equipment, shared ratio in the quantity of all communication equipments of described total quantity in specified scope, described all in specified scope of quantity that are in active state are in shared ratio in the quantity of communication equipment of active state, shared ratio in described outgoing data amount all outgoing data amounts in specified scope.
In technique scheme, preferably, also comprise: the message management unit, be used for when described the second configuration parameter and described Equations of The Second Kind communication equipment at the configuration parameter of current reprovision cycle application not simultaneously, forbid that described parameter applying unit notifies described the second configuration parameter to described first kind communication equipment.
In this technical scheme, because in the prior art, when the parameter (such as the ascending-descending subframes ratio) of system information when changing, need by the paging(beep-page message) inform all UE, make the parameter after UE uses the variation that receives, thereby when the second configuration parameter changes, to be sent to all UE, so that the UE of redaction had both received the first configuration parameter, receive again the second configuration parameter, cause it correctly to process.Therefore, by forbidding sending the second configuration parameter to the UE of redaction, thereby avoid the UE of redaction to receive simultaneously the situation of various configurations parameter, can correctly realize the configuration of ascending-descending subframes ratio.
According to another aspect of the invention, also propose a kind of system, comprised the first kind communication equipment of supporting the eIMTA function and/or the Equations of The Second Kind communication equipment of not supporting the eIMTA function, and as the described base station of above-mentioned arbitrary technical scheme.
In this technical scheme, first kind communication equipment is redaction UE, and the Equations of The Second Kind communication equipment is legacy version UE.For dissimilar communication equipments, adopt different configuration parameters to realize the dynamic-configuration of time division duplex ascending-descending subframes ratio, sacrifice legacy version UE performance when having avoided the use short weight to join the cycle, or use long reprovision to sacrifice redaction UE performance during the cycle, so that the performance of two class UE can be taken into account, demonstrate fully dynamic-configuration to the gain of the overall performance of system by double-periodic application.Particularly, there are seven kinds of different ascending-descending subframes ratios in seven kinds of different wireless frame structures corresponding to 3GPP regulation, and the configuration parameter here just refers to certain ascending-descending subframes ratio of therefrom selecting.
According to another aspect of the invention, also proposed a kind of communication equipment, described communication equipment is supported the eIMTA function, and described communication equipment comprises: the data interaction unit receives the first configuration parameter that is used for configuring time division duplex ascending-descending subframes ratio; Data processing unit is used for using described the first configuration parameter in the first reprovision cycle; Message is ignored the unit, is used for ignoring described the second configuration parameter when described data interaction unit receives the second configuration parameter, uses described the second configuration parameter to forbid described data processing unit; Wherein, described the second configuration parameter is used for the time division duplex ascending-descending subframes ratio that the communication equipment of eIMTA function is not supported in configuration, to use described the second configuration parameter by the described communication equipment of eIMTA function of not supporting in the second reprovision cycle.
In this technical scheme, because in the prior art, when the parameter (such as the ascending-descending subframes ratio) of system information when changing, need by the paging(beep-page message) inform all UE, make the parameter after UE uses the variation that receives, thereby when the second configuration parameter changes, to be sent to all UE, so that the UE of redaction had both received the first configuration parameter, receive again the second configuration parameter, cause it correctly to process.Therefore, by initiatively being ignored the second configuration parameter that receives by redaction UE, thereby avoid receiving simultaneously the situation of various configurations parameter, can correctly realize the configuration of ascending-descending subframes ratio.
By above technical scheme, when the communication equipment mixed networking of different editions, can adopt different configuration parameters for different communication equipment, cause the hydraulic performance decline of part communication equipment when avoiding adopting single parameter.
Description of drawings
Fig. 1 shows the structural representation of the TDD system in the correlation technique;
Fig. 2 shows the structural representation of seven kinds of radio frames in the TDD system that defines in the correlation technique;
Fig. 3 shows the according to an embodiment of the invention flow chart of the binary cycle Dynamic Configuration of TDD ascending-descending subframes ratio;
Fig. 4 shows the according to an embodiment of the invention block diagram of base station;
Fig. 5 shows the according to an embodiment of the invention block diagram of system;
Fig. 6 shows the according to an embodiment of the invention block diagram of communication equipment;
Fig. 7 shows according to an embodiment of the invention by statistic algorithm and obtains flow chart for the reprovision configuration parameter of dissimilar communication equipments;
Fig. 8 shows the structural representation of the radio frames after the configuration of carrying out time division duplex ascending-descending subframes ratio in the correlation technique;
Fig. 9 shows the flow chart that according to an embodiment of the invention legacy version UE is carried out transfer of data and/or strategy interaction restriction;
Figure 10 shows the according to an embodiment of the invention flow chart of automatic switch eIMTA function.
Embodiment
In order more clearly to understand above-mentioned purpose of the present invention, feature and advantage, below in conjunction with the drawings and specific embodiments the present invention is further described in detail.Need to prove that in the situation of not conflicting, the application's embodiment and the feature among the embodiment can make up mutually.
A lot of details have been set forth in the following description so that fully understand the present invention; but; the present invention can also adopt other to be different from other modes described here and implement, and therefore, protection scope of the present invention is not subjected to the restriction of following public specific embodiment.
Fig. 3 shows the according to an embodiment of the invention flow chart of the binary cycle Dynamic Configuration of TDD ascending-descending subframes ratio.
As shown in Figure 3, the binary cycle Dynamic Configuration of TDD ascending-descending subframes ratio according to an embodiment of the invention, be used for the first kind communication equipment of supporting the eIMTA function and do not support the Equations of The Second Kind communication equipment of eIMTA function to carry out the configuration of time division duplex ascending-descending subframes ratio, described Dynamic Configuration comprises: step 302, definite first configuration parameter that need to be applied to the time division duplex ascending-descending subframes ratio of first kind communication equipment; Step 304 according to used one or more historical the first configuration parameters of described first kind communication equipment, is determined the second corresponding configuration parameter; Step 306 is applied to described first kind communication equipment with described the first configuration parameter in the first reprovision cycle, and described the second configuration parameter is applied to described Equations of The Second Kind communication equipment in the second reprovision cycle.
In this technical scheme, first kind communication equipment is redaction UE, and the Equations of The Second Kind communication equipment is legacy version UE." reprovision cycle " is the predefined cycle, and in the cycle, a kind of ascending-descending subframes ratio will be selected by system in above-mentioned seven kinds of wireless frame structures, in the cycle, by system this ascending-descending subframes ratio is applied to corresponding UE at next reprovision at each reprovision.This programme passes through for dissimilar communication equipments, adopt different configuration parameters to realize the dynamic-configuration of time division duplex ascending-descending subframes ratio, sacrifice legacy version UE performance when having avoided the use short weight to join the cycle, or use long reprovision to sacrifice redaction UE performance during the cycle, so that the performance of two class UE can be taken into account, demonstrate fully dynamic-configuration to the gain of the overall performance of system by double-periodic application.Particularly, there are seven kinds of different ascending-descending subframes ratios in seven kinds of different wireless frame structures corresponding to 3GPP regulation, and the configuration parameter here just refers to certain ascending-descending subframes ratio of therefrom selecting.In addition, " historical the first configuration parameter " refer to the current reprovision cycle and before reprovision be applied to the configuration parameter of first kind communication equipment in the cycle, certainly, also can be set to comprise current the first configuration parameter that obtains.
In technique scheme, preferably, the step of the second configuration parameter of described definite correspondence comprises: at the appointed time used the maximum configuration parameter of number of times as described the second configuration parameter in the window described first kind communication equipment; Or with described first kind communication equipment in described fixed time window in the used configuration parameter the minimum configuration parameter of upstream or downstream sub-frame number as described the second configuration parameter; Or with the described first kind communication equipment configuration parameter that the upstream or downstream sub-frame number is maximum in the used configuration parameter in described fixed time window as described the second configuration parameter; Or the configuration parameter that described first kind communication equipment is used in the cycle at a nearest reprovision is as described the second configuration parameter; Or with described first kind communication equipment at the configuration parameter that uses in the cycle when previous reprovision as described the second configuration parameter.
In this technical scheme, the first required configuration parameter of first kind communication equipment can adopt correlation technique to obtain, the ratio of the outgoing data total amount that is about to issue such as upstream data total amount to be sent and base station with all first kind communication equipments, and according to this outgoing data ratio, in seven kinds of TDD ascending-descending subframes ratios of 3GPP agreement regulation, find with it immediate configuration, this is disposed as next coupling cycle TDD ascending-descending subframes proportional arrangement to be used.And for the second configuration parameter, can be according to the actual requirements or actual conditions, use different modes to select.Certainly, what it should be appreciated by those skilled in the art is, the various ways of having mentioned in such scheme, obviously can also adopt other NM modes to select the first configuration parameter or the second configuration parameter for next reprovision cycle.
In technique scheme, preferably, before the step of the second configuration parameter of described definite correspondence, also comprise: be default at least one the associated configuration parameter of every kind of protocol definition configuration parameter; And after the step of the second configuration parameter of described definite correspondence, also comprise: obtain the described associated configuration parameter corresponding to described the second configuration parameter, and by alternative described the second configuration parameter of described associated configuration parameter, so that described associated configuration parameter is applied to described Equations of The Second Kind communication equipment.
In this technical scheme, the protocol definition configuration parameter refers to seven kinds of different ascending-descending subframes proportional arrangement having stipulated in 3GPP.Although can directly the second configuration parameter of determining according to historical the first configuration parameter be applied to the Equations of The Second Kind communication equipment, but for some actual needs, sometimes need to use the associated configuration parameter (by setting in advance the incidence relation between a plurality of configuration parameters) corresponding to the second configuration parameter, to be applied to the Equations of The Second Kind communication equipment.Certainly, obviously can be not yet by setting in advance incidence relation, such as can passing through specific algorithm, directly calculate the associated configuration parameter that real needs are applied to the Equations of The Second Kind communication equipment by the second configuration parameter of Real-time Obtaining.
In technique scheme, preferably, the described step that described the first configuration parameter is applied to described first kind communication equipment comprises: send the reprovision signaling to described first kind communication equipment, use described the first configuration parameter to inform described first kind communication equipment in the cycle at next reprovision.
In this technical scheme, by the reprovision signaling is set, so that first kind communication equipment can be learnt the configuration parameter that self need to use.Particularly, corresponding to different parameters, then can in this reprovision signaling, indicate this parameter such as every kind of ascending-descending subframes ratio, to represent corresponding ascending-descending subframes ratio.The reprovision signaling here can be the signaling that does not have in the agreement of R10/11 or other present versions, newly proposes, and also can be to have added new information in present existing signaling.Certainly, for the Equations of The Second Kind communication equipment, can inform the Equations of The Second Kind configuration parameter that it is corresponding by system message (such as SIB1).
In technique scheme, preferably, described reprovision signaling comprises: Physical Downlink Control Channel signaling, media access control signaling or radio resource control signaling.
In technique scheme, preferably, when described reprovision signaling is the Physical Downlink Control Channel signaling, in the control information of described Physical Downlink Control Channel signaling, increase by the first configuration indication territory, comprise the information of described the first configuration parameter in described the first configuration indication territory; When described reprovision signaling is the media access control signaling, in described media access control signaling, increase control element, comprise the information of described the first configuration parameter in the described control element; When described reprovision signaling is the radio resource control signaling, in described radio resource control signaling, increase by the second configuration indication territory or increase new radio resource control layer signaling, comprise the information of described the first configuration parameter in described the second configuration indication territory or the described new radio resource control layer signaling.
In this technical scheme, for Physical Downlink Control Channel (PDCCH) signaling, can be at the control information (DCI of its carrying, Downlink Control Information) increases a territory in, in order to the coupling configuration of indicating the next reprovision cycle to use, particularly, such as " TDD Config Indicator " (TDD the disposes indication) territory that can be 3 bits; For media access control (MAC) signaling, can increase special MAC layer control element (CE); For radio resource control (RRC, Radio Resource Control) signaling can increase a new information field (such as this information field being called " TDD Config Indicator ") or increase a new rrc layer signaling in the related signaling (such as " RRC Connection Reconfiguration " signaling) of rrc layer.Certainly, here " increase " refers to take present R10/11(or other R12 protocol version before) propose as the basis, comprise the use to present existing reservation position/territory among PDCCH, MAC or the RRC, or add new position/territory, thereby can be used in the information that comprises the first configuration parameter that proposes among the present invention.
In technique scheme, preferably, after described the second configuration parameter is applied to described Equations of The Second Kind communication equipment, also comprise: the actual transmissions direction of obtaining each subframe of described Equations of The Second Kind communication equipment; If the nominal transmission direction corresponding with described the second configuration parameter of the described actual transmissions direction of given sub-frame is inconsistent, then limit on the described given sub-frame operating function corresponding to described nominal transmission direction.
In this technical scheme, for originally corresponding in the second configuration parameter be the uplink/downlink subframe, and actually when being applied to the Equations of The Second Kind communication equipment, may become descending/sub-frame of uplink, thereby cause the backwards compatibility problem for the Equations of The Second Kind communication equipment.Therefore, in the situation that the problems referred to above occur, by limiting these subframes originally corresponding to the operating function of uplink/downlink, avoid having strengthened the backwards compatibility for the Equations of The Second Kind communication equipment because the data that the variation of subframe transmission direction leads to errors send or receive.
In technique scheme, preferably, when described operating function is the transfer of data behavior, the step that limits described transfer of data behavior comprises: when the actual transmissions direction of the appointment sub-frame of uplink of described Equations of The Second Kind communication equipment is down direction, forbid that described appointment sub-frame of uplink calls the upstream data of described Equations of The Second Kind communication equipment; And when the actual transmissions direction of the appointment descending sub frame of described Equations of The Second Kind communication equipment is up direction, forbid that described appointment descending sub frame calls the downlink data of described Equations of The Second Kind communication equipment.
In this technical scheme, be 10 subframes of 0 ~ 9 such as in a complete wireless frame structure, comprising sequence number, suppose that sequence number is that the actual transmissions direction of the subframe of n changes, forbid that then this subframe calls corresponding data, guarantee that the Information Security of corresponding Equations of The Second Kind communication equipment and other functional modules can access correct data.
In technique scheme, preferably, when described operating function is the measurement behavior, the step that limits described measurement behavior comprises: be the measurement result that the descending sub frame of up direction is uploaded with the actual transmissions direction, and will by the actual transmissions direction be the last measurement result uploaded of the descending sub frame of down direction or recently repeatedly the merging result of measurement result as this measurement result; And/or to limit described Equations of The Second Kind communication equipment be that 0,1,5,6 subframe place carries out down-run survey in sequence number only; And/or the actual transmissions direction is that the descending sub frame of up direction is set to the subframe without the behavior of measurement; And/or send and to forbid measuring signaling, to forbid that described Equations of The Second Kind communication equipment is at the down-run survey of actual transmissions direction as the descending sub frame place of up direction.
In this technical scheme, repeatedly " the merging result " of measurement result can be understood as measurement result is repeatedly processed according to preset algorithm, such as the mean value that calculates repeatedly measurement result, or sue for peace etc. after the different measuring result be multiply by different weights.Sequence number is that 0,1,5,6 subframe is the descending sub frame of regulation, can not be changed to sub-frame of uplink in the ascending-descending subframes configuration, thereby can not cause the backwards compatibility problem.Be set to the subframe that nothing is measured behavior by some subframes, such as MBSFN subframe (Multicast/Broadcast over Single Frequency Network, single frequency network multicast/broadcast sub-frame) or ABS subframe (Almost Blank Subframe), then these subframes just can not proceeded down-run survey, thereby can not cause the backwards compatibility problem.And adopt the mode of forbidding measuring signaling, such as time domain measurement resource limitation (the Timedomain measurement resource restriction) signaling that can use the LTE definition down-run survey is limited.
In technique scheme, preferably, when described operating function is the transmission of signaling/channel or reception behavior features, limiting the transmission of described signaling/channel or the step of reception behavior features comprises: when the actual transmissions direction of the appointment sub-frame of uplink of described Equations of The Second Kind communication equipment is down direction, forbid the up transmission signaling/channel of described appointment sub-frame of uplink; And/or to limit described Equations of The Second Kind communication equipment be the up transmission that 2 subframe place specifies signaling/channel in sequence number only; And/or to limit described Equations of The Second Kind communication equipment be the descending reception that 0,1,5,6 subframe place specifies signaling/channel in sequence number only.
In this technical scheme, when corresponding sub-frame of uplink is actual when being downlink transmission direction, need to limit, such as forbidding that this subframe uplink sends the SRS(Soundingreference signals of originally needs transmission, ascending channel detecting pilot frequency), PRACH(Physical RandomChannel, Physical Random Access Channel) etc. signaling/channel.In seven kinds of present wireless frame structures, sequence number is that 2 subframe is sub-frame of uplink, sequence number is that 0,1,5,6 subframe is descending sub frame, therefore, only carry out upstream operation, only carry out downstream operation at 0,1,5,6 work song frames at 2 work song frames by regulation, the mistake that causes in the time of can effectively avoiding the subframe transmission direction to change.
In technique scheme, preferably, also comprise: the characteristic information that obtains described first kind communication equipment or described Equations of The Second Kind communication equipment; When the value of described characteristic information more than or equal to predetermined threshold value, then open described eIMTA function, otherwise close described eIMTA function.
In this technical scheme, obtain and compare by the characteristic information to the communication equipment of specified type, can carry out automatic switch according to actual conditions to the eIMTA function well, performance loss and the inconvenience of avoiding the manual control switch to cause.
In technique scheme, preferably, described characteristic information comprise following at least one or a combination set of: the total quantity of described first kind communication equipment or described Equations of The Second Kind communication equipment, be in the quantity of the communication equipment of active state in described first kind communication equipment or the described Equations of The Second Kind communication equipment, described first kind communication equipment or outgoing data amount corresponding to described Equations of The Second Kind communication equipment, shared ratio in the quantity of all communication equipments of described total quantity in specified scope, described all in specified scope of quantity that are in active state are in shared ratio in the quantity of communication equipment of active state, shared ratio in described outgoing data amount all outgoing data amounts in specified scope.
In technique scheme, preferably, also comprise: the configuration parameter of using in the current reprovision cycle when described the second configuration parameter and described Equations of The Second Kind communication equipment is forbidden notifying described the second configuration parameter to described first kind communication equipment not simultaneously.
In this technical scheme, because in the prior art, when the parameter (such as the ascending-descending subframes ratio) of system information when changing, need by the paging(beep-page message) inform all UE, make the parameter after UE uses the variation that receives, thereby when the second configuration parameter changes, to be sent to all UE, so that the UE of redaction had both received the first configuration parameter, receive again the second configuration parameter, cause it correctly to process.Therefore, by forbidding sending the second configuration parameter to the UE of redaction, thereby avoid the UE of redaction to receive simultaneously the situation of various configurations parameter, can correctly realize the configuration of ascending-descending subframes ratio.
Fig. 4 shows the according to an embodiment of the invention block diagram of base station.
As shown in Figure 4, the base station 400 according to an embodiment of the invention, the first kind communication equipment of supporting the eIMTA function and the Equations of The Second Kind communication equipment of not supporting the eIMTA function are served in described base station 400, described base station 400 comprises: parameter determining unit 402, be used for definite first configuration parameter that need to be applied to the time division duplex ascending-descending subframes ratio of first kind communication equipment, and according to used one or more historical the first configuration parameters of described first kind communication equipment, determine the second corresponding configuration parameter; Parameter applying unit 404 is used for described the first configuration parameter is applied to described first kind communication equipment in the first reprovision cycle, and described the second configuration parameter is applied to described Equations of The Second Kind communication equipment in the second reprovision cycle.
In this technical scheme, first kind communication equipment is redaction UE, and the Equations of The Second Kind communication equipment is legacy version UE." reprovision cycle " is the predefined cycle, and in the cycle, a kind of ascending-descending subframes ratio will be selected by system in above-mentioned seven kinds of wireless frame structures, in the cycle, by system this ascending-descending subframes ratio is applied to corresponding UE at next reprovision at each reprovision.This programme passes through for dissimilar communication equipments, adopt different configuration parameters to realize the dynamic-configuration of time division duplex ascending-descending subframes ratio, sacrifice legacy version UE performance when having avoided the use short weight to join the cycle, or use long reprovision to sacrifice redaction UE performance during the cycle, so that the performance of two class UE can be taken into account, demonstrate fully dynamic-configuration to the gain of the overall performance of system by double-periodic application.Particularly, there are seven kinds of different ascending-descending subframes ratios in seven kinds of different wireless frame structures corresponding to 3GPP regulation, and the configuration parameter here just refers to certain ascending-descending subframes ratio of therefrom selecting.In addition, " historical the first configuration parameter " refer to the current reprovision cycle and before reprovision be applied to the configuration parameter of first kind communication equipment in the cycle, certainly, also can be set to comprise current the first configuration parameter that obtains.
In technique scheme, preferably, described parameter determining unit 402 was at the appointed time used the maximum configuration parameter of number of times in the window with described first kind communication equipment, described first kind communication equipment minimum configuration parameter of upstream or downstream sub-frame number in the used configuration parameter in described fixed time window, described first kind communication equipment maximum configuration parameter of upstream or downstream sub-frame number in the used configuration parameter in described fixed time window, the configuration parameter that described first kind communication equipment uses in the cycle at a nearest reprovision or described first kind communication equipment at the configuration parameter that uses in the cycle when previous reprovision as described the second configuration parameter.
In this technical scheme, the first required configuration parameter of first kind communication equipment can adopt correlation technique to obtain, the ratio of the outgoing data total amount that is about to issue such as upstream data total amount to be sent and base station with all first kind communication equipments, and according to this outgoing data ratio, in seven kinds of TDD ascending-descending subframes ratios of 3GPP agreement regulation, find with it immediate configuration, this is disposed as next coupling cycle TDD ascending-descending subframes proportional arrangement to be used.And for the second configuration parameter, can be according to the actual requirements or actual conditions, use different modes to select.Certainly, what it should be appreciated by those skilled in the art is, the various ways of having mentioned in such scheme, obviously can also adopt other NM modes to select the first configuration parameter or the second configuration parameter for next reprovision cycle.
In technique scheme, preferably, also comprise: related setting unit 406 is used to every kind of protocol definition configuration parameter to preset at least one associated configuration parameter; Wherein, described parameter determining unit 402 is also obtained the described associated configuration parameter corresponding to described the second configuration parameter, and substitutes described the second configuration parameter by described associated configuration parameter, so that described associated configuration parameter is applied to described Equations of The Second Kind communication equipment.
In this technical scheme, the protocol definition configuration parameter refers to seven kinds of different ascending-descending subframes proportional arrangement having stipulated in 3GPP.Although can directly the second configuration parameter of determining according to historical the first configuration parameter be applied to the Equations of The Second Kind communication equipment, but for some actual needs, sometimes need to use the associated configuration parameter (by setting in advance the incidence relation between a plurality of configuration parameters) corresponding to the second configuration parameter, to be applied to the Equations of The Second Kind communication equipment.Certainly, obviously can be not yet by setting in advance incidence relation, such as can passing through specific algorithm, directly calculate the associated configuration parameter that real needs are applied to the Equations of The Second Kind communication equipment by the second configuration parameter of Real-time Obtaining.
In technique scheme, preferably, described parameter applying unit 404 comprises: signalling subelement 4042, be used for sending the reprovision signaling to described first kind communication equipment, and use described the first configuration parameter to inform described first kind communication equipment in the cycle at next reprovision.
In this technical scheme, by the reprovision signaling is set, so that first kind communication equipment can be learnt the configuration parameter that self need to use.Particularly, corresponding to different parameters, then can in this reprovision signaling, indicate this parameter such as every kind of ascending-descending subframes ratio, to represent corresponding ascending-descending subframes ratio.The reprovision signaling here can be the signaling that does not have in the agreement of R10/11 or other present versions, newly proposes, and also can be to have added new information in present existing signaling.Certainly, for the Equations of The Second Kind communication equipment, can inform the Equations of The Second Kind configuration parameter that it is corresponding by system message (such as SIB1).
In technique scheme, preferably, described signalling subelement 4042 is by Physical Downlink Control Channel signaling, media access control signaling or the described reprovision signaling of radio resource control signalling.
In technique scheme, preferably, described parameter applying unit 404 comprises that also signaling generates subelement 4044, be used for: when described reprovision signaling is the Physical Downlink Control Channel signaling, in the control information of described Physical Downlink Control Channel signaling, increase by the first configuration indication territory, comprise the information of described the first configuration parameter in described the first configuration indication territory; When described reprovision signaling is the media access control signaling, in described media access control signaling, increase control element, comprise the information of described the first configuration parameter in the described control element; When described reprovision signaling is the radio resource control signaling, in described radio resource control signaling, increase by the second configuration indication territory or increase new radio resource control layer signaling, comprise the information of described the first configuration parameter in described the second configuration indication territory or the described new radio resource control layer signaling.
In this technical scheme, for Physical Downlink Control Channel (PDCCH) signaling, can be at the control information (DCI of its carrying, Downlink Control Information) increases a territory in, in order to the coupling configuration of indicating the next reprovision cycle to use, particularly, such as " TDD Config Indicator " (TDD the disposes indication) territory that can be 3 bits; For media access control (MAC) signaling, can increase special MAC layer control element (CE); For radio resource control (RRC, Radio Resource Control) signaling can increase a new information field (such as this information field being called " TDD Config Indicator ") or increase a new rrc layer signaling in the related signaling (such as " RRC Connection Reconfiguration " signaling) of rrc layer.Certainly, here " increase " refers to take present R10/11(or other R12 protocol version before) propose as the basis, comprise the use to present existing reservation position/territory among PDCCH, MAC or the RRC, or add new position/territory, thereby can be used in the information that comprises the first configuration parameter that proposes among the present invention.
In technique scheme, preferably, also comprise: direction judging unit 408, for the actual transmissions direction of each subframe of obtaining described Equations of The Second Kind communication equipment; Behavior limiting unit 410 is used in the described actual transmissions direction of the given sub-frame nominal transmission direction inconsistent situation corresponding with described the second configuration parameter, limits on the described given sub-frame operating function corresponding to described nominal transmission direction.
In this technical scheme, for originally corresponding in the second configuration parameter be the uplink/downlink subframe, and actually when being applied to the Equations of The Second Kind communication equipment, may become descending/sub-frame of uplink, thereby cause the backwards compatibility problem for the Equations of The Second Kind communication equipment.Therefore, in the situation that the problems referred to above occur, by limiting these subframes originally corresponding to the operating function of uplink/downlink, avoid having strengthened the backwards compatibility for the Equations of The Second Kind communication equipment because the data that the variation of subframe transmission direction leads to errors send or receive.
In technique scheme, preferably, when described operating function is the transfer of data behavior, the described transfer of data behavior of described behavior limiting unit 410 restrictions comprises: when the actual transmissions direction of the appointment sub-frame of uplink of described Equations of The Second Kind communication equipment was down direction, described behavior limiting unit forbade that described appointment sub-frame of uplink calls the upstream data of described Equations of The Second Kind communication equipment; And when the actual transmissions direction of the appointment descending sub frame of described Equations of The Second Kind communication equipment was up direction, described behavior limiting unit forbade that described appointment descending sub frame calls the downlink data of described Equations of The Second Kind communication equipment.
In this technical scheme, be 10 subframes of 0 ~ 9 such as in a complete wireless frame structure, comprising sequence number, suppose that sequence number is that the actual transmissions direction of the subframe of n changes, forbid that then this subframe calls corresponding data, guarantee that the Information Security of corresponding Equations of The Second Kind communication equipment and other functional modules can access correct data.
In technique scheme, preferably, when described operating function is the measurement behavior, the described measurement behavior of described behavior limiting unit 410 restrictions comprises: ignore the actual transmissions direction and be the measurement result that the descending sub frame of up direction is uploaded, and will by the actual transmissions direction be the last measurement result uploaded of the descending sub frame of down direction or recently repeatedly the merging result of measurement result as this measurement result; And/or to limit described Equations of The Second Kind communication equipment be that 0,1,5,6 subframe place carries out down-run survey in sequence number only; And/or the actual transmissions direction is that the descending sub frame of up direction is set to the subframe without the behavior of measurement; And/or send and to forbid measuring signaling, to forbid that described Equations of The Second Kind communication equipment is at the down-run survey of actual transmissions direction as the descending sub frame place of up direction.
In this technical scheme, repeatedly " the merging result " of measurement result can be understood as measurement result is repeatedly processed according to preset algorithm, such as the mean value that calculates repeatedly measurement result, or sue for peace etc. after the different measuring result be multiply by different weights.Sequence number is that 0,1,5,6 subframe is the descending sub frame of regulation, can not be changed to sub-frame of uplink in the ascending-descending subframes configuration, thereby can not cause the backwards compatibility problem.Be set to the subframe that nothing is measured behavior by some subframes, such as MBSFN subframe (Multicast/Broadcast over Single Frequency Network, single frequency network multicast/broadcast sub-frame) or ABS subframe (Almost Blank Subframe), then these subframes just can not proceeded down-run survey, thereby can not cause the backwards compatibility problem.And adopt the mode of forbidding measuring signaling, such as time domain measurement resource limitation (the Timedomain measurement resource restriction) signaling that can use the LTE definition down-run survey is limited.
In technique scheme, preferably, when described operating function is the transmission of signaling/channel or reception behavior features, described behavior limiting unit limits the transmission of described signaling/channel or the step of reception behavior features comprises: when the actual transmissions direction of the appointment sub-frame of uplink of described Equations of The Second Kind communication equipment is down direction, forbid the up transmission signaling/channel of described appointment sub-frame of uplink; And/or to limit described Equations of The Second Kind communication equipment be the up transmission that 2 subframe place specifies signaling/channel in sequence number only; And/or to limit described Equations of The Second Kind communication equipment be the descending reception that 0,1,5,6 subframe place specifies signaling/channel in sequence number only.
In this technical scheme, when corresponding sub-frame of uplink is actual when being downlink transmission direction, need to limit, such as forbidding that this subframe uplink sends the SRS(Soundingreference signals of originally needs transmission, ascending channel detecting pilot frequency), PRACH(Physical RandomChannel, Physical Random Access Channel) etc. signaling/channel.In seven kinds of present wireless frame structures, sequence number is that 2 subframe is sub-frame of uplink, sequence number is that 0,1,5,6 subframe is descending sub frame, therefore, only carry out upstream operation, only carry out downstream operation at 0,1,5,6 work song frames at 2 work song frames by regulation, the mistake that causes in the time of can effectively avoiding the subframe transmission direction to change.
In technique scheme, preferably, also comprise: information acquisition unit 412, for the characteristic information that obtains described first kind communication equipment or described Equations of The Second Kind communication equipment; Functional switch unit 414 is used for value at described characteristic information and opens described eIMTA function in more than or equal to the situation of predetermined threshold value, otherwise closes described eIMTA function.
In this technical scheme, obtain and compare by the characteristic information to the communication equipment of specified type, can carry out automatic switch according to actual conditions to the eIMTA function well, performance loss and the inconvenience of avoiding the manual control switch to cause.
In technique scheme, preferably, described characteristic information comprise following at least one or a combination set of: the total quantity of described first kind communication equipment or described Equations of The Second Kind communication equipment, be in the quantity of the communication equipment of active state in described first kind communication equipment or the described Equations of The Second Kind communication equipment, described first kind communication equipment or outgoing data amount corresponding to described Equations of The Second Kind communication equipment, shared ratio in the quantity of all communication equipments of described total quantity in specified scope, described all in specified scope of quantity that are in active state are in shared ratio in the quantity of communication equipment of active state, shared ratio in described outgoing data amount all outgoing data amounts in specified scope.
In technique scheme, preferably, also comprise: message management unit 416, be used for when described the second configuration parameter and described Equations of The Second Kind communication equipment at the configuration parameter of current reprovision cycle application not simultaneously, forbid that described parameter applying unit 404 notifies described the second configuration parameter to described first kind communication equipment.
In this technical scheme, because in the prior art, when the parameter (such as the ascending-descending subframes ratio) of system information when changing, need by the paging(beep-page message) inform all UE, make the parameter after UE uses the variation that receives, thereby when the second configuration parameter changes, to be sent to all UE, so that the UE of redaction had both received the first configuration parameter, receive again the second configuration parameter, cause it correctly to process.Therefore, by forbidding sending the second configuration parameter to the UE of redaction, thereby avoid the UE of redaction to receive simultaneously the situation of various configurations parameter, can correctly realize the configuration of ascending-descending subframes ratio.
Fig. 5 shows the according to an embodiment of the invention block diagram of system.
As shown in Figure 5, system 500 according to an embodiment of the invention, comprise terminal 502 and base station as shown in Figure 4 400, and wherein, terminal 502 comprises the first kind communication equipment of supporting the eIMTA function and/or the Equations of The Second Kind communication equipment of not supporting the eIMTA function.
In this technical scheme, first kind communication equipment is redaction UE, and the Equations of The Second Kind communication equipment is legacy version UE.For dissimilar communication equipments, adopt different configuration parameters to realize the dynamic-configuration of time division duplex ascending-descending subframes ratio, sacrifice legacy version UE performance when having avoided the use short weight to join the cycle, or use long reprovision to sacrifice redaction UE performance during the cycle, so that the performance of two class UE can be taken into account, demonstrate fully dynamic-configuration to the gain of the overall performance of system by double-periodic application.Particularly, there are seven kinds of different ascending-descending subframes ratios in seven kinds of different wireless frame structures corresponding to 3GPP regulation, and the configuration parameter here just refers to certain ascending-descending subframes ratio of therefrom selecting.
Fig. 6 shows the according to an embodiment of the invention block diagram of communication equipment.
As shown in Figure 6, communication equipment 600 according to an embodiment of the invention, and described communication equipment 600 is supported the eIMTA function, and described communication equipment 600 comprises: data interaction unit 602 receives the first configuration parameter that is used for configuring time division duplex ascending-descending subframes ratio; Data processing unit 604 is used for using described the first configuration parameter in the first reprovision cycle; Message is ignored unit 606, is used for ignoring described the second configuration parameter when described data interaction unit 602 receives the second configuration parameter, uses described the second configuration parameter to forbid described data processing unit 604; Wherein, described the second configuration parameter is used for the time division duplex ascending-descending subframes ratio that the communication equipment of eIMTA function is not supported in configuration, to use described the second configuration parameter by the described communication equipment of eIMTA function of not supporting in the second reprovision cycle.
In this technical scheme, because in the prior art, when the parameter (such as the ascending-descending subframes ratio) of system information when changing, need by the paging(beep-page message) inform all UE, make the parameter after UE uses the variation that receives, thereby when the second configuration parameter changes, to be sent to all UE, so that the UE of redaction had both received the first configuration parameter, receive again the second configuration parameter, cause it correctly to process.Therefore, by initiatively being ignored the second configuration parameter that receives by redaction UE, thereby avoid receiving simultaneously the situation of various configurations parameter, can correctly realize the configuration of ascending-descending subframes ratio.
Below in conjunction with Fig. 7 to Figure 10, technical scheme of the present invention is illustrated in more detail.
Redaction UE is called " advanced UE ", legacy version UE is called " Legacy UE ".According to 3GPP eIMTA correlative study achievement as can be known, " advanced UE " and " Legacy UE " is applicable to the reprovision cycle of different length: " advanced UE " can be according to the reprovision signaling of new definition quick reprovision TDD ascending-descending subframes ratio (reprovision cycle can less than 10ms) dynamically; " Legacy UE " can only realize by update cycle long " system information " the dynamic reprovision of TDD ascending-descending subframes ratio.According to the reprovision algorithm in existing single reprovision cycle, if adopt the larger reprovision cycle, the performance gain of the dynamic-configuration of eIMTA can't demonstrate fully; If adopt the less reprovision cycle, " Legacy UE " can't realize reprovision again.
Therefore, in technical scheme of the present invention, under the scene for " advanced UE " and " Legacy UE " mixed networking, wish by different user being mined massively with the reprovision cycle of different length, avoided adopting the decline of the user performance that the single reprovision cycle causes.
Particularly, can realize different user was mined massively with the reprovision cycle of different length by the present invention proposes " statistic algorithm ", wherein, Fig. 7 shows according to an embodiment of the invention by statistic algorithm and obtains flow chart for the reprovision configuration parameter of dissimilar communication equipments.
As shown in Figure 7, the specific implementation flow process of " statistic algorithm " comprising:
Step 702 triggers user grouping.Just refer to the protocol version according to user terminal, user terminal is divided into " advanced UE group " and " Legacy UE group ", " advanced UE group " wherein comprises all " advanced UE " (the eIMTA function that refers to user terminal agreement support Rel-12 definition, fast dynamic reprovision TDD ascending-descending subframes proportional arrangement); " Legacy UE group " comprises all " Legacy UE " (refer to that the user terminal agreement do not support the eIMTA function of Rel-12 definition, can not be fast dynamically reprovision TDD ascending-descending subframes proportional arrangement).The triggering of user grouping can be periodic triggers, also can be Event triggered.
Step 704, obtain the coupling configuration ii that is applied to " advanced UE group ", such as in the scope of dynamically adjusting is carried out in the base station (in a residential quarter), calculate the ratio of upstream data total amount to be sent and the outgoing data total amount that the base station is about to issue of all advanced UE, and according to this outgoing data ratio, in seven kinds of TDD ascending-descending subframes ratios of 3GPP agreement regulation (as shown in Figure 2) find with it immediate configuration, with this configuration as next coupling cycle TDD ascending-descending subframes proportional arrangement to be used.
Step 706 will dispose ii and be applied to " advanced UE group ", and return step 704 in each reprovision cycle, constantly obtain new configuration ii.
Particularly, the reprovision order can be informed terminal in " advanced UE group " by the reprovision signaling in the base station, and in order to satisfy the faster reprovision cycle, this reprovision signaling can be:
Newly-increased PDCCH (Physical Downlink Control Channel) signaling: in control information (DCI), increase " TDD Config Indicator " (TDD disposes indication) territory of 3 bits in order to indicate the coupling configuration of next reprovision cycle practicality;
Newly-increased MAC control signal: increase special MAC(Media Access Control) layer control element (CE);
Newly-increased RRC(Radio Resource Control) layer signaling: in rrc layer signaling " RRCConnection Reconfiguration " signaling, increase a new information field " Tdd CongIndic ator ".
Step 708, after obtaining the configuration ii that will be applied to " advanced UE group " (obviously also can be simultaneously or before it) at every turn, by to " advanced UE group " in history (current reprovision cycle and reprovision cycle before) used configuration carry out statistical calculation, obtain disposing ii ', and find corresponding to the coupling configuration iii that disposes ii ', to be applied to " Legacy UE group ".Particularly, obtaining the method that disposes ii ' comprises:
Algorithm 1, will be at a time between in the window, the coupling configuration ii that occurrence number is maximum nCoupling configuration ii ' as " Legacy UE group ";
Algorithm 2, will be at a time between in the window, the coupling of the uplink/downlink subframe ratio that occurred minimum (or maximum) disposes ii nCoupling configuration ii ' as " Legacy UE group ";
Algorithm 3, with the coupling configuration ii that uses in " advanced UE group " the last reprovision cycle nCoupling configuration ii ' as " Legacy UE group ".
And configuration ii ' establishes incidence relation ground in advance with configuration iii, thereby can directly find by the configuration ii ' that obtains corresponding configuration iii, to be applied to " Legacy UE group ".
Step 710, the coupling that obtains " Legacy UE group " disposes iii.
Step 712 will dispose iii and be applied to " Legacy UE group ", and return step 710 in each reprovision cycle, constantly obtain new configuration iii.
After statistic algorithm by as shown in Figure 7 carried out TDD ascending-descending subframes ratio reprovision to " Legacy UE group ", the performance of Legacy UE obtained larger raising.Because the coupling of " Legacy UE group " configuration is to be obtained by " advanced UE group " coupling configuration statistics, " Legacy UE group " coupling configuration iii that comes according to statistic algorithm meets interior business load of following a period of time from the statistical significance to the requirement of ascending-descending subframes ratio.Therefore, avoided to the full extent the Legacy UE backwards compatibility problem that causes because the subframe transmission direction changes (as being descending (or up) subframe for Legacy UE, and being actually up (or descending) subframe).
But in the practical application, the coupling configuration iii that statistical forecast goes out still can't avoid fully because the Legacy UE backwards compatibility problem that the subframe transmission direction changes and causes.Particularly, this problem includes special subframe 802, sub-frame of uplink 804 and descending sub frame 806 as shown in Figure 8 in each radio frames.After will mating configuration iii be applied to Legacy UE, carry out obtaining radio frames 2 behind the reprovision from radio frames 1, in the ideal situation, result corresponding to coupling configuration iii should be the structure shown in the first half among Fig. 8, be that sequence number is that 3,4,8,9 subframe is descending sub frame 806, but actual subframe structure is the structure shown in the latter half among Fig. 7, and namely sequence number is that 3,4,8,9 subframe has all become sub-frame of uplink 804.
May occur the situation of mistake in the above-mentioned transmission direction, the present invention proposes solution shown in Figure 9.
As shown in Figure 9, this solution comprises:
Step 902 will dispose iii and be applied to Legacy UE group.
Step 904 judges whether the actual transmissions direction of each subframe is with consistent corresponding to the desirable transmission direction of configuration iii, if unanimously, then do not process, otherwise enter step 906.
Step 906 limits transmission or the reception behavior features of the UE among the Legacy UE group, comprising:
1, limiting transmission of data
When sub-frame of uplink (or descending sub frame) #n of coupling configuration iii is descending sub frame (sub-frame of uplink) in real system, utilize the scheduler of base station end that up (descending) data dispatch is limited, forbid up (descending) data at subframe #n scheduling Legacy UE.
2, measurement behavior restriction
(1) when the descending sub frame #nn of coupling configuration iii is sub-frame of uplink in real system, the measurement reported result that goes out at subframe #nn will be ignored in the base station, and use a nearest real descending sub frame UE measurement result before subframe #nn as the measurement result of this measurement; Perhaps use nearest several real descending sub frame UE measurement results to merge prediction (such as suing for peace after the mean value that calculates a plurality of measurement results or the weighting), and the result who predicts the outcome and measure as this UE that will obtain.
(2) restriction Legacy UE is only at subframe #0, #1, #5, #6(as shown in Figure 2, subframe #0, #1, #5, #6 is descending sub frame in all TDD configurations) locate to carry out down-run survey.
(3) utilize the subframe without UE measurement behavior of LTE definition to forbid that UE carries out down-run survey at this subframe place.As subframe #n being set to MBSFN subframe (Multicast/Broadcastover Single Frequency Network, single frequency network multicast/broadcast sub-frame) subframe or ABS subframe (Almost Blank Subframe).
(4) utilize the UE measurement signaling of forbidding of LTE definition to forbid that UE is at the down-run survey at subframe #n place.As measurement limits signaling to UE to use the time domain measurement resource limitation (Time domain measurementresource restriction) of LTE definition.
3, the reception of signaling (channel)/transmission restriction
(1) if the actual transmissions direction of sub-frame of uplink is down direction, some need to be in the signaling (channel) of uplink receiving or up transmission, such as the SRS(ascending channel detecting pilot frequency then to limit sending/receiving), the PRACH(Physical Random Access Channel) etc.
(2) find through observing, in the transmission configuration of the above-mentioned signaling (channel) that in existing LTE agreement, defines, certain some configuration stipulates that this signaling (signal) is that descending sub frame (or forever being sub-frame of uplink) is being located to send forever only, as disposing for seven kinds of TDD, subframe #2 is sub-frame of uplink, and subframe # 0,1,5,6 is descending sub frame.Therefore, can dispose above-mentioned need to be in the signaling (channel) of uplink receiving or up transmission only at the up transmission in above-mentioned subframe #2 place or uplink receiving, and configuration need to be in the signaling (channel) of descending reception or descending transmission only in subframe # 0,1,5, the descending transmission in 6 places or descending reception.
In addition, the present invention can also carry out automatic decision and processing to whether opening the eIMTA function, and specifically as shown in figure 10, handling process comprises:
Step 1002 gathers customer group information.So-called " customer group information " refers to the characteristic information that certain " customer group " possesses jointly in the present invention, for example:
Figure BDA00002753163000311
Be somebody's turn to do number of users or the active users (any active ues is made a comment or criticism or is about to carry out the professional user who transmits) of " customer group ";
Figure BDA00002753163000312
Be somebody's turn to do " customer group " outgoing data amount;
Figure BDA00002753163000313
Number of users that should " customer group " or active users shared ratio in all numbers of users of (in a residential quarter) or the active users in the dynamic adjusting range of its TDD;
Figure BDA00002753163000314
User has data volume to be sent shared ratio in (in a residential quarter) all data total amounts to be sent in the dynamic adjusting range of its TDD in should " customer group ".
Particularly, " customer group " here can refer to " advanced UE group ", also can refer to " Legacy UE group ".
Step 1004, the numerical value of supposing the characteristic information of " customer group " that collect is A, and default threshold value is B, if A, then enters step 1006 more than or equal to B, otherwise enters step 1008.Particularly, if criterion A is the ratio of " advanced UE group " number of users (or active users) or the shared total number of users of data volume (or total active users) or data volume, then default thresholding B is less than or equal to 1 decimal greater than 0; If criterion A is number of users or active users or the absolute figure for the treatment of the sending service amount, then default thresholding B also should be corresponding absolute figure.
Step 1006 is opened the eIMTA function.
Step 1008 is closed the eIMTA function.
More than be described with reference to the accompanying drawings technical scheme of the present invention, consider in the correlation technique, can't process preferably the situation of new and old edition UE mixed networking, the present invention proposes Dynamic Configuration, base station, system and the communication equipment of time division duplex ascending-descending subframes ratio, when the communication equipment mixed networking of different editions, can adopt different configuration parameters for different communication equipment, cause the hydraulic performance decline of part communication equipment when avoiding adopting single parameter.
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 (24)

1. the binary cycle Dynamic Configuration of a TDD ascending-descending subframes ratio, be used for the first kind communication equipment of supporting the eIMTA function and do not support the Equations of The Second Kind communication equipment of eIMTA function to carry out the configuration of time division duplex ascending-descending subframes ratio, it is characterized in that described Dynamic Configuration comprises:
Definite needs are applied to the first configuration parameter of the time division duplex ascending-descending subframes ratio of first kind communication equipment;
According to used one or more historical the first configuration parameters of described first kind communication equipment, determine the second corresponding configuration parameter;
Described the first configuration parameter is applied to described first kind communication equipment in the first reprovision cycle, and described the second configuration parameter is applied to described Equations of The Second Kind communication equipment in the second reprovision cycle.
2. Dynamic Configuration according to claim 1 is characterized in that, the step of the second configuration parameter of described definite correspondence comprises:
At the appointed time used the maximum configuration parameter of number of times as described the second configuration parameter in the window described first kind communication equipment; Or
With described first kind communication equipment in described fixed time window in the used configuration parameter the minimum configuration parameter of upstream or downstream sub-frame number as described the second configuration parameter; Or
With the described first kind communication equipment configuration parameter that the upstream or downstream sub-frame number is maximum in the used configuration parameter in described fixed time window as described the second configuration parameter; Or
The configuration parameter that described first kind communication equipment is used in the cycle at a nearest reprovision is as described the second configuration parameter; Or
With described first kind communication equipment at the configuration parameter that uses in the cycle when previous reprovision as described the second configuration parameter.
3. Dynamic Configuration according to claim 2 is characterized in that, before the step of the second configuration parameter of described definite correspondence, also comprises:
Be default at least one the associated configuration parameter of every kind of protocol definition configuration parameter; And
After the step of the second configuration parameter of described definite correspondence, also comprise:
Obtain the described associated configuration parameter corresponding to described the second configuration parameter, and substitute described the second configuration parameter by described associated configuration parameter, so that described associated configuration parameter is applied to described Equations of The Second Kind communication equipment.
4. Dynamic Configuration according to claim 1 is characterized in that, the described step that described the first configuration parameter is applied to described first kind communication equipment comprises:
Send the reprovision signaling to described first kind communication equipment, use described the first configuration parameter to inform described first kind communication equipment in the cycle at next reprovision.
5. Dynamic Configuration according to claim 4 is characterized in that, described reprovision signaling comprises:
Physical Downlink Control Channel signaling, media access control signaling or radio resource control signaling.
6. Dynamic Configuration according to claim 5 is characterized in that,
When described reprovision signaling is the Physical Downlink Control Channel signaling, in the control information of described Physical Downlink Control Channel signaling, increase by the first configuration indication territory, comprise the information of described the first configuration parameter in described the first configuration indication territory;
When described reprovision signaling is the media access control signaling, in described media access control signaling, increase control element, comprise the information of described the first configuration parameter in the described control element;
When described reprovision signaling is the radio resource control signaling, in described radio resource control signaling, increase by the second configuration indication territory or increase new radio resource control layer signaling, comprise the information of described the first configuration parameter in described the second configuration indication territory or the described new radio resource control layer signaling.
7. Dynamic Configuration according to claim 1 is characterized in that, after described the second configuration parameter is applied to described Equations of The Second Kind communication equipment, also comprises:
Obtain the actual transmissions direction of each subframe of described Equations of The Second Kind communication equipment;
If the nominal transmission direction corresponding with described the second configuration parameter of the described actual transmissions direction of given sub-frame is inconsistent, then limit on the described given sub-frame operating function corresponding to described nominal transmission direction.
8. Dynamic Configuration according to claim 7 is characterized in that, when described operating function was the transfer of data behavior, the step that limits described transfer of data behavior comprised:
When the actual transmissions direction of the appointment sub-frame of uplink of described Equations of The Second Kind communication equipment is down direction, forbid that described appointment sub-frame of uplink calls the upstream data of described Equations of The Second Kind communication equipment; And
When the actual transmissions direction of the appointment descending sub frame of described Equations of The Second Kind communication equipment is up direction, forbid that described appointment descending sub frame calls the downlink data of described Equations of The Second Kind communication equipment; Or when described operating function was the measurement behavior, the step that limits described measurement behavior comprised:
Ignore the actual transmissions direction and be the measurement result that the descending sub frame of up direction is uploaded, and will by the actual transmissions direction be the last measurement result uploaded of the descending sub frame of down direction or recently repeatedly the merging result of measurement result as this measurement result; And/or
Limiting described Equations of The Second Kind communication equipment is that 0,1,5,6 subframe place carries out down-run survey in sequence number only; And/or
The actual transmissions direction is that the descending sub frame of up direction is set to the subframe without the behavior of measurement; And/or
Transmission forbids measuring signaling, to forbid that described Equations of The Second Kind communication equipment is at the down-run survey of actual transmissions direction as the descending sub frame place of up direction;
Or when described operating function is the transmission of signaling/channel or reception behavior features, limits the transmission of described signaling/channel or the step of reception behavior features and comprise:
When the actual transmissions direction of the appointment sub-frame of uplink of described Equations of The Second Kind communication equipment is down direction, forbid the up transmission signaling/channel of described appointment sub-frame of uplink; And/or
Limiting described Equations of The Second Kind communication equipment is the up transmission that 2 subframe place specifies signaling/channel in sequence number only; And/or
Limiting described Equations of The Second Kind communication equipment is the descending reception that 0,1,5,6 subframe place specifies signaling/channel in sequence number only.
9. each described Dynamic Configuration in 8 according to claim 1 is characterized in that, also comprises:
Obtain the characteristic information of described first kind communication equipment or described Equations of The Second Kind communication equipment;
When the value of described characteristic information more than or equal to predetermined threshold value, then open described eIMTA function, otherwise close described eIMTA function.
10. Dynamic Configuration according to claim 9 is characterized in that, described characteristic information comprise following at least one or a combination set of:
The total quantity of described first kind communication equipment or described Equations of The Second Kind communication equipment, be in the quantity of the communication equipment of active state in described first kind communication equipment or the described Equations of The Second Kind communication equipment, described first kind communication equipment or outgoing data amount corresponding to described Equations of The Second Kind communication equipment, shared ratio in the quantity of all communication equipments of described total quantity in specified scope, described all in specified scope of quantity that are in active state are in shared ratio in the quantity of communication equipment of active state, shared ratio in described outgoing data amount all outgoing data amounts in specified scope.
11. each described Dynamic Configuration in 8 is characterized in that according to claim 1, also comprises:
The configuration parameter of using in the current reprovision cycle when described the second configuration parameter and described Equations of The Second Kind communication equipment is forbidden notifying described the second configuration parameter to described first kind communication equipment not simultaneously.
12. the first kind communication equipment of supporting the eIMTA function and the Equations of The Second Kind communication equipment of not supporting the eIMTA function are served in a base station, described base station, it is characterized in that described base station comprises:
The parameter determining unit, be used for definite first configuration parameter that need to be applied to the time division duplex ascending-descending subframes ratio of first kind communication equipment, and according to used one or more historical the first configuration parameters of described first kind communication equipment, determine the second corresponding configuration parameter;
The parameter applying unit is used for described the first configuration parameter is applied to described first kind communication equipment in the first reprovision cycle, and described the second configuration parameter is applied to described Equations of The Second Kind communication equipment in the second reprovision cycle.
13. base station according to claim 12, it is characterized in that described parameter determining unit was at the appointed time used the maximum configuration parameter of number of times in the window with described first kind communication equipment, described first kind communication equipment minimum configuration parameter of upstream or downstream sub-frame number in the used configuration parameter in described fixed time window, described first kind communication equipment maximum configuration parameter of upstream or downstream sub-frame number in the used configuration parameter in described fixed time window, the configuration parameter that described first kind communication equipment uses in the cycle at a nearest reprovision or described first kind communication equipment at the configuration parameter that uses in the cycle when previous reprovision as described the second configuration parameter.
14. base station according to claim 13 is characterized in that, also comprises:
Related setting unit is used to every kind of protocol definition configuration parameter to preset at least one associated configuration parameter;
Wherein, described parameter determining unit is also obtained the described associated configuration parameter corresponding to described the second configuration parameter, and substitutes described the second configuration parameter by described associated configuration parameter, so that described associated configuration parameter is applied to described Equations of The Second Kind communication equipment.
15. base station according to claim 12 is characterized in that, described parameter applying unit comprises:
The signalling subelement is used for sending the reprovision signaling to described first kind communication equipment, uses described the first configuration parameter to inform described first kind communication equipment in the cycle at next reprovision.
16. base station according to claim 15 is characterized in that, described signalling subelement is by Physical Downlink Control Channel signaling, media access control signaling or the described reprovision signaling of radio resource control signalling.
17. base station according to claim 16 is characterized in that, described parameter applying unit comprises that also signaling generates subelement, is used for:
When described reprovision signaling is the Physical Downlink Control Channel signaling, in the control information of described Physical Downlink Control Channel signaling, increase by the first configuration indication territory, comprise the information of described the first configuration parameter in described the first configuration indication territory;
When described reprovision signaling is the media access control signaling, in described media access control signaling, increase control element, comprise the information of described the first configuration parameter in the described control element;
When described reprovision signaling is the radio resource control signaling, in described radio resource control signaling, increase by the second configuration indication territory or increase new radio resource control layer signaling, comprise the information of described the first configuration parameter in described the second configuration indication territory or the described new radio resource control layer signaling.
18. base station according to claim 12 is characterized in that, also comprises:
The direction judging unit is for the actual transmissions direction of each subframe of obtaining described Equations of The Second Kind communication equipment;
The behavior limiting unit is used in the described actual transmissions direction of the given sub-frame nominal transmission direction inconsistent situation corresponding with described the second configuration parameter, limits on the described given sub-frame operating function corresponding to described nominal transmission direction.
19. base station according to claim 18 is characterized in that, when described operating function was the transfer of data behavior, described behavior limiting unit limited described transfer of data behavior and comprises:
When the actual transmissions direction of the appointment sub-frame of uplink of described Equations of The Second Kind communication equipment was down direction, described behavior limiting unit forbade that described appointment sub-frame of uplink calls the upstream data of described Equations of The Second Kind communication equipment; And
When the actual transmissions direction of the appointment descending sub frame of described Equations of The Second Kind communication equipment was up direction, described behavior limiting unit forbade that described appointment descending sub frame calls the downlink data of described Equations of The Second Kind communication equipment;
Or when described operating function was the measurement behavior, described behavior limiting unit limited described measurement behavior and comprises:
Ignore the actual transmissions direction and be the measurement result that the descending sub frame of up direction is uploaded, and will by the actual transmissions direction be the last measurement result uploaded of the descending sub frame of down direction or recently repeatedly the merging result of measurement result as this measurement result; And/or
Limiting described Equations of The Second Kind communication equipment is that 0,1,5,6 subframe place carries out down-run survey in sequence number only; And/or
The actual transmissions direction is that the descending sub frame of up direction is set to the subframe without the behavior of measurement; And/or
Transmission forbids measuring signaling, to forbid that described Equations of The Second Kind communication equipment is at the down-run survey of actual transmissions direction as the descending sub frame place of up direction;
Or when described operating function was the transmission of signaling/channel or reception behavior features, described behavior limiting unit limited the transmission of described signaling/channel or the step of reception behavior features comprises:
When the actual transmissions direction of the appointment sub-frame of uplink of described Equations of The Second Kind communication equipment is down direction, forbid the up transmission signaling/channel of described appointment sub-frame of uplink; And/or
Limiting described Equations of The Second Kind communication equipment is the up transmission that 2 subframe place specifies signaling/channel in sequence number only; And/or
Limiting described Equations of The Second Kind communication equipment is the descending reception that 0,1,5,6 subframe place specifies signaling/channel in sequence number only.
20. each described base station in 19 is characterized in that according to claim 12, also comprises:
Information acquisition unit is for the characteristic information that obtains described first kind communication equipment or described Equations of The Second Kind communication equipment;
The functional switch unit is used for value at described characteristic information and opens described eIMTA function in more than or equal to the situation of predetermined threshold value, otherwise closes described eIMTA function.
21. base station according to claim 20 is characterized in that, described characteristic information comprise following at least one or a combination set of:
The total quantity of described first kind communication equipment or described Equations of The Second Kind communication equipment, be in the quantity of the communication equipment of active state in described first kind communication equipment or the described Equations of The Second Kind communication equipment, described first kind communication equipment or outgoing data amount corresponding to described Equations of The Second Kind communication equipment, shared ratio in the quantity of all communication equipments of described total quantity in specified scope, described all in specified scope of quantity that are in active state are in shared ratio in the quantity of communication equipment of active state, shared ratio in described outgoing data amount all outgoing data amounts in specified scope.
22. each described base station in 19 is characterized in that according to claim 12, also comprises:
The message management unit, be used for when described the second configuration parameter and described Equations of The Second Kind communication equipment at the configuration parameter of current reprovision cycle application not simultaneously, forbid that described parameter applying unit notifies described the second configuration parameter to described first kind communication equipment.
23. a system is characterized in that, comprises the first kind communication equipment of supporting the eIMTA function and/or the Equations of The Second Kind communication equipment of not supporting the eIMTA function, and such as each described base station in the claim 12 to 22.
24. a communication equipment, described communication equipment is supported the eIMTA function, it is characterized in that described communication equipment comprises:
The data interaction unit receives the first configuration parameter that is used for configuring time division duplex ascending-descending subframes ratio;
Data processing unit is used for using described the first configuration parameter in the first reprovision cycle;
Message is ignored the unit, is used for ignoring described the second configuration parameter when described data interaction unit receives the second configuration parameter, uses described the second configuration parameter to forbid described data processing unit;
Wherein, described the second configuration parameter is used for the time division duplex ascending-descending subframes ratio that the communication equipment of eIMTA function is not supported in configuration, to use described the second configuration parameter by the described communication equipment of eIMTA function of not supporting in the second reprovision cycle.
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