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CN103037524B - 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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CN103037524B
CN103037524B CN201310020962.9A CN201310020962A CN103037524B CN 103037524 B CN103037524 B CN 103037524B CN 201310020962 A CN201310020962 A CN 201310020962A CN 103037524 B CN103037524 B CN 103037524B
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communication equipment
configuration parameter
kind communication
signaling
equations
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CN103037524A (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

The binary cycle Dynamic Configuration of TDD ascending-descending subframes ratio, base station, system and communication equipment
Technical field
The present invention relates to communication technical field, in particular to the binary cycle Dynamic Configuration of TDD ascending-descending subframes ratio, base station, system and communication equipment.
Background technology
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, the plurality of advantages such as signal time delay is little, the high communication quality, and 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 FDD system, the utilization ratio of TDD system to system resource is higher, and base station according to the difference of up-downgoing traffic carrying capacity, can use the wireless frame structure of different ascending-descending subframes ratios between base station.But existing TDD technology, due to the existence of cross jamming (Cross-interference), limits the flexible deployment of TDD system ascending-descending subframes proportional arrangement.As shown in Figure 1, if terminal 1 is served in base station 1, terminal 2 is served in base station 2, then when the current use sub-frame of uplink 104 in the current use in base station 1 descending sub frame 102, base station 2, except base station 1 and terminal 1, normal signal 2 between base station 2 and terminal 2, also there is terminal 1 and terminal 2, interference signal 1 that different uplink-downlink configuration between base station 1 and base station 2 cause, i.e. cross jamming.
In order to address this problem, International Organization for standardization 3GPP starts 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 legacy version UE mixed networking condition under 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 subsequent protocol version, and legacy version UE refer to support 3GPP R12 before release protocol (as R10, R11 etc.) user terminal.
After technical research after a while, 3GPP draws preliminary conclusion:
● the reprovision cycle of TDD ascending-descending subframes proportional arrangement is shorter (namely reprovision frequency is higher), larger to the raising of systematic function;
● legacy version UE cannot receive " the dynamic conditioning order " of new definition, and therefore, legacy version UE cannot 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 the normal behaviour to some UE, as down-run survey, SRS(ascending pilot frequency) send, HARQ(Hybrid AutomaticRepeat Request, hybrid automatic repeat-request) retransmit etc. carry out some restriction.These restrictions may reduce the systematic function of legacy version UE.
In the correlative study of 3GPP, propose the reprovision algorithm of some TDD ascending-descending subframes proportional arrangement reprovisions.In existing reprovision algorithm, system determines the TDD ascending-descending subframes proportional arrangement that will adopt in the next reprovision cycle according to current traffic load situation, namely calculate within the scope of dynamic conditioning (as in a community), the upstream data total amount to be sent of all UE and base station are about to the ratio of the outgoing data total amount issued, and according to this outgoing data ratio, 3GPP agreement regulation seven kinds of TDD ascending-descending subframes ratios in (as shown in Figure 2) find immediate configuration with it, this is configured as TDD ascending-descending subframes proportional arrangement to be used of next coupling cycle.Particularly, as shown in Figure 2, the LTE(A that different TDD ascending-descending subframes ratio is corresponding) in radio frames, the special subframe 202 comprised, sub-frame of uplink 204 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 eIMTA function), sacrifice legacy version UE performance; Use the long reprovision cycle (closing eIMTA function), sacrifice redaction UE performance.Thus, the performance of legacy version UE and redaction UE cannot be taken into account, and dynamic-configuration cannot fully demonstrate 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, different configuration parameters can be adopted for different communication equipment, avoid the hydraulic performance decline causing section communication equipment when adopting single parameter.
Summary of the invention
The present invention is just based on the problems referred to above, propose a kind of new technical scheme, when the communication equipment mixed networking of different editions, different configuration parameters can be adopted for different communication equipment, avoid the hydraulic performance decline causing section communication equipment when adopting single parameter.
In view of this, the present invention proposes a kind of binary cycle Dynamic Configuration of TDD ascending-descending subframes ratio, for to supporting the first kind communication equipment of eIMTA function and not supporting that the Equations of The Second Kind communication equipment of eIMTA function carries out the configuration of time division duplex ascending-descending subframes ratio, described Dynamic Configuration comprises: the first configuration parameter determining the time division duplex ascending-descending subframes ratio needing to be applied to first kind communication equipment; According to used one or more history first configuration parameter of described first kind communication equipment, determine the second corresponding configuration parameter; Described first configuration parameter is applied to described first kind communication equipment in the first reprovision cycle, and described 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 and redaction UE, and Equations of The Second Kind communication equipment and legacy version UE.For dissimilar communication equipment, different configuration parameters is adopted to realize the dynamic-configuration of time division duplex ascending-descending subframes ratio, avoid when using short weight to join the cycle and sacrifice legacy version UE performance, or sacrifice redaction UE performance when using the long reprovision cycle, by double-periodic application, the performance of two class UE can be taken into account, fully demonstrate the gain of dynamic-configuration to the overall performance of system.Particularly, corresponding to seven kinds of different wireless frame structures of 3GPP regulation, there are seven kinds of different ascending-descending subframes ratios, configuration parameter here just refers to certain ascending-descending subframes ratio therefrom selected.In addition, " history first configuration parameter " refer to the current reprovision cycle and before the reprovision cycle in be applied to the configuration parameter of first kind communication equipment, certainly, also can be set to the first configuration parameter comprising current acquisition.
In technique scheme, preferably, describedly determine that the step of the second corresponding configuration parameter comprises: using used number of times maximum in described first kind communication equipment at the appointed time window configuration parameter as described second configuration parameter; Or using the described first kind communication equipment configuration parameter that in used configuration parameter, upstream or downstream sub-frame number is minimum in described fixed time window as described second configuration parameter; Or using the described first kind communication equipment configuration parameter that in used configuration parameter, upstream or downstream sub-frame number is maximum in described fixed time window as described second configuration parameter; Or the configuration parameter to be used within a nearest reprovision cycle by described first kind communication equipment is as described second configuration parameter; Or using described first kind communication equipment when the configuration parameter that uses in the previous reprovision cycle is as described second configuration parameter.
In this technical scheme, the first configuration parameter needed for first kind communication equipment can adopt correlation technique to obtain, such as the upstream data total amount to be sent of all first kind communication equipments and base station are about to the ratio of the outgoing data total amount issued, and according to this outgoing data ratio, in seven kinds of TDD ascending-descending subframes ratios of 3GPP agreement regulation, find immediate configuration with it, this is configured as TDD ascending-descending subframes proportional arrangement to be used of next coupling cycle.And for the second configuration parameter, can according to the actual requirements or actual conditions, make differently to select.Certainly, it should be appreciated by those skilled in the art, except the various ways mentioned in such scheme, other NM modes obviously can also be adopted to carry out selecting the first configuration parameter for next reprovision cycle or the second configuration parameter.
In technique scheme, preferably, described determine the step of the second corresponding configuration parameter before, also comprise: for often kind of protocol definition configuration parameter presets at least one associated configuration parameter; And described determine the step of the second corresponding configuration parameter after, also comprise: obtain the described associated configuration parameter corresponding to described second configuration parameter, and substitute described 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, protocol definition configuration parameter refers to the ascending-descending subframes proportional arrangement that seven kinds of having specified in 3 gpp are different.Although directly the second configuration parameter determined according to history first configuration parameter can be applied to Equations of The Second Kind communication equipment, but for some actual needs, sometimes need to use the associated configuration parameter (by pre-setting the incidence relation between multiple configuration parameter) corresponding to the second configuration parameter, to be applied to Equations of The Second Kind communication equipment.Certainly, obviously also by pre-setting incidence relation, such as can not can pass through specific algorithm, directly being calculated the associated configuration parameter really needing to be applied to Equations of The Second Kind communication equipment by the second configuration parameter of Real-time Obtaining.
In technique scheme, preferably, the described step described first configuration parameter being applied to described first kind communication equipment comprises: send reprovision signaling, to inform that described first kind communication equipment applies described first configuration parameter in next reprovision cycle to described first kind communication equipment.
In this technical scheme, by arranging reprovision signaling, first kind communication equipment can be learnt, and self needs the configuration parameter of application.Particularly, such as often kind of ascending-descending subframes ratio corresponds to different parameters, then can indicate this parameter in this reprovision signaling, to represent corresponding ascending-descending subframes ratio.Here reprovision signaling can be the signaling not having, newly propose in the agreement of R10/11 or other current versions, also can be with the addition of new information in current existing signaling.Certainly, for Equations of The Second Kind communication equipment, the Equations of The Second Kind configuration parameter that system message (as SIB1) informs its correspondence can be passed through.
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 Physical Downlink Control Channel signaling, in the control information of described Physical Downlink Control Channel signaling, increase by the first configuration instructions field, in described first configuration instructions field, comprise the information of described first configuration parameter; When described reprovision signaling is media access control signaling, in described media access control signaling, increase control element, in described control element, comprise the information of described first configuration parameter; When described reprovision signaling is radio resource control signaling, in described radio resource control signaling, increase by the second configuration instructions field or increase new radio resource control layer signaling, described second configures the information comprising described first configuration parameter in instructions field or described new radio resource control layer signaling.
In this technical scheme, for Physical Downlink Control Channel (PDCCH) signaling, can at the control information (DCI of its carrying, Downlink Control Information) a middle increase territory, the coupling configuration used in order to indicate the next reprovision cycle, particularly, can be such as 3 bits " TDD Config Indicator " (TDD configures instruction) territory; For media access control (MAC) signaling, special MAC layer control element (CE) can be increased; For radio resource control (RRC, Radio Resource Control) signaling, a new information field (being such as called by this information field " TDD Config Indicator ") can be increased in the related signaling of rrc layer (such as " RRC Connection Reconfiguration " signaling) or increase a new rrc layer signaling.Certainly, here " increase " refers to by the protocol version before current R10/11(or other R12) based on and propose, comprise the use to existing reservation position/territory current in PDCCH, MAC or RRC, or add new position/territory, thus can be used in the information comprising the first configuration parameter proposed in the present invention.
In technique scheme, preferably, after described second configuration parameter is applied to described Equations of The Second Kind communication equipment, also comprise: the actual transmissions direction obtaining each subframe of described Equations of The Second Kind communication equipment; If the nominal transfer direction corresponding with described second configuration parameter, the described actual transmissions direction of given sub-frame is inconsistent, then limit the operating function described given sub-frame corresponding to described nominal transfer direction.
In this technical scheme, for originally corresponding in the second configuration parameter be uplink/downlink subframe, and reality may become descending/sub-frame of uplink when being applied to Equations of The Second Kind communication equipment, thus causes the backward compatibility sex chromosome mosaicism for Equations of The Second Kind communication equipment.Therefore, when there are the problems referred to above, originally correspond to the operating function of uplink/downlink by limiting these subframes, the data avoiding the change due to sub-frame transmission direction to lead to errors send or receive, and enhance the backwards compatibility for Equations of The Second Kind communication equipment.
In technique scheme, preferably, when described operating function is transfer of data behavior, the step limiting 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, forbids 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, such as in a complete wireless frame structure, comprise 10 subframes that sequence number is 0 ~ 9, assuming that the actual transmissions direction that sequence number is the subframe of n changes, then forbid that this subframe calls corresponding data, guarantee that the Information Security of corresponding Equations of The Second Kind communication equipment and other functional modules can obtain correct data.
In technique scheme, preferably, when described operating function is measurement behavior, the step limiting described measurement behavior comprises: be the measurement result that the descending sub frame of up direction is uploaded by actual transmissions direction, and the merging treatment result of the last measurement result uploaded by the descending sub frame by actual transmissions direction being down direction or recently repetitive measurement result is as this measurement result; And/or limit the subframe place that described Equations of The Second Kind communication equipment is only 0,1,5,6 in sequence number and carry out down-run survey; And/or be the subframe that the descending sub frame of up direction is set to without the behavior of measurement by actual transmissions direction; And/or send and forbid measuring signaling, to forbid the down-run survey at descending sub frame place that described Equations of The Second Kind communication equipment is up direction in actual transmissions direction.
In this technical scheme, " the merging treatment result " of repetitive measurement result can be understood as and repetitive measurement result processed according to preset algorithm, such as calculate the mean value of repetitive measurement result, or sue for peace etc. after different weights are multiplied by different measuring result.Sequence number be 0,1,5,6 subframe be the descending sub frame of regulation, sub-frame of uplink can not be changed in ascending-descending subframes configuration, thus backward compatibility sex chromosome mosaicism can not be caused.By some subframes being set to the subframe without the behavior of measurement, such as MBSFN sub-frame (Multicast/Broadcast over Single Frequency Network, single frequency network multicast/broadcast sub-frame) or ABS subframe (Almost Blank Subframe), then these subframes would not proceed down-run survey, thus can not cause backward compatibility sex chromosome mosaicism.And adopting the mode forbidding measuring signaling, the time domain measurement resource that LTE such as can be used to define restriction (Timedomain measurement resource restriction) signaling limits down-run survey.
In technique scheme, preferably, when described operating function is transmission or the reception behavior features of signaling/channel, limit the described transmission of 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 limit the up transmission that subframe place that described Equations of The Second Kind communication equipment is only 2 in sequence number carries out specifying signaling/channel; And/or limit the downlink reception that subframe place that described Equations of The Second Kind communication equipment is only 0,1,5,6 in sequence number carries out specifying signaling/channel.
In this technical scheme, when corresponding sub-frame of uplink is actual be downlink transmission direction time, need to limit, such as forbid that this subframe uplink sends the SRS(Soundingreference signals of needs transmission originally, ascending channel detecting pilot frequency), PRACH(Physical RandomChannel, Physical Random Access Channel) etc. signaling/channel.In current seven kinds of wireless frame structures, sequence number be 2 subframe be sub-frame of uplink, sequence number be 0,1,5,6 subframe be descending sub frame, therefore, only carry out upstream operation at 2 work song frames, only carry out downstream operation at 0,1,5,6 work song frames by regulation, the mistake caused when can effectively avoid sub-frame transmission direction to change.
In technique scheme, preferably, also comprise: the characteristic information obtaining described first kind communication equipment or described Equations of The Second Kind communication equipment; When the value of described characteristic information is more than or equal to predetermined threshold value, then open described eIMTA function, otherwise close described eIMTA function.
In this technical scheme, obtained by the characteristic information of the communication equipment to specified type and compare, automatic switch can be carried out according to actual conditions to eIMTA function well, the performance loss avoiding manual control switch to cause and inconvenience.
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, the quantity of the communication equipment of active state is in described first kind communication equipment or 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, ratio shared in the quantity of all communication equipments of described total quantity in specified scope, all in specified scope of the described quantity being in active state are in ratio shared in the quantity of the communication equipment of active state, ratio shared in all outgoing data amounts of described outgoing data amount in specified scope.
In technique scheme, preferably, also comprise: when the configuration parameter that described second configuration parameter and described Equations of The Second Kind communication equipment were applied in the current reprovision cycle is different, forbid notifying described second configuration parameter to described first kind communication equipment.
In this technical scheme, due in the prior art, when the parameter (as ascending-descending subframes ratio) of system information changes, need by paging(beep-page message) inform all UE, the parameter after making UE apply the change received, thus when the second configuration parameter changes, all UE will be sent to, make the UE of redaction both receive 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, thus avoiding the UE of redaction to receive the situation of various configurations parameter simultaneously, correctly can realize the configuration of ascending-descending subframes ratio.
According to a further aspect in the invention, also proposed a kind of base station, the first kind communication equipment supporting eIMTA function and the Equations of The Second Kind communication equipment not supporting eIMTA function are served in described base station, described base station comprises: parameter determination unit, for determining the first configuration parameter of the time division duplex ascending-descending subframes ratio needing to be applied to first kind communication equipment, and according to used one or more history first configuration parameter of described first kind communication equipment, determine the second corresponding configuration parameter; Parameter applying unit, for described first configuration parameter is applied to described first kind communication equipment in the first reprovision cycle, and is applied to described Equations of The Second Kind communication equipment by described second configuration parameter in the second reprovision cycle.
In this technical scheme, first kind communication equipment and redaction UE, and Equations of The Second Kind communication equipment and legacy version UE.For dissimilar communication equipment, different configuration parameters is adopted to realize the dynamic-configuration of time division duplex ascending-descending subframes ratio, avoid when using short weight to join the cycle and sacrifice legacy version UE performance, or sacrifice redaction UE performance when using the long reprovision cycle, by double-periodic application, the performance of two class UE can be taken into account, fully demonstrate the gain of dynamic-configuration to the overall performance of system.Particularly, corresponding to seven kinds of different wireless frame structures of 3GPP regulation, there are seven kinds of different ascending-descending subframes ratios, configuration parameter here just refers to certain ascending-descending subframes ratio therefrom selected.In addition, " history first configuration parameter " refer to the current reprovision cycle and before the reprovision cycle in be applied to the configuration parameter of first kind communication equipment, certainly, also can be set to the first configuration parameter comprising current acquisition.
In technique scheme, preferably, the configuration parameter that described parameter determination unit will use number of times maximum in described first kind communication equipment at the appointed time window, the described first kind communication equipment configuration parameter that in used configuration parameter, upstream or downstream sub-frame number is minimum in described fixed time window, the described first kind communication equipment configuration parameter that in used configuration parameter, upstream or downstream sub-frame number is maximum in described fixed time window, the configuration parameter that described first kind communication equipment uses within a nearest reprovision cycle or described first kind communication equipment are when the configuration parameter used in the previous reprovision cycle is as described second configuration parameter.
In this technical scheme, the first configuration parameter needed for first kind communication equipment can adopt correlation technique to obtain, such as the upstream data total amount to be sent of all first kind communication equipments and base station are about to the ratio of the outgoing data total amount issued, and according to this outgoing data ratio, in seven kinds of TDD ascending-descending subframes ratios of 3GPP agreement regulation, find immediate configuration with it, this is configured as TDD ascending-descending subframes proportional arrangement to be used of next coupling cycle.And for the second configuration parameter, can according to the actual requirements or actual conditions, make differently to select.Certainly, it should be appreciated by those skilled in the art, except the various ways mentioned in such scheme, other NM modes obviously can also be adopted to carry out selecting the first configuration parameter for next reprovision cycle or the second configuration parameter.
In technique scheme, preferably, also comprise: association setting unit, for presetting at least one associated configuration parameter for often kind of protocol definition configuration parameter; Wherein, described parameter determination unit also obtains the described associated configuration parameter corresponding to described second configuration parameter, and substitutes described 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, protocol definition configuration parameter refers to the ascending-descending subframes proportional arrangement that seven kinds of having specified in 3 gpp are different.Although directly the second configuration parameter determined according to history first configuration parameter can be applied to Equations of The Second Kind communication equipment, but for some actual needs, sometimes need to use the associated configuration parameter (by pre-setting the incidence relation between multiple configuration parameter) corresponding to the second configuration parameter, to be applied to Equations of The Second Kind communication equipment.Certainly, obviously also by pre-setting incidence relation, such as can not can pass through specific algorithm, directly being calculated the associated configuration parameter really needing to be applied to 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: signalling subelement, for sending reprovision signaling, to inform that described first kind communication equipment applies described first configuration parameter in next reprovision cycle to described first kind communication equipment.
In this technical scheme, by arranging reprovision signaling, first kind communication equipment can be learnt, and self needs the configuration parameter of application.Particularly, such as often kind of ascending-descending subframes ratio corresponds to different parameters, then can indicate this parameter in this reprovision signaling, to represent corresponding ascending-descending subframes ratio.Here reprovision signaling can be the signaling not having, newly propose in the agreement of R10/11 or other current versions, also can be with the addition of new information in current existing signaling.Certainly, for Equations of The Second Kind communication equipment, the Equations of The Second Kind configuration parameter that system message (as SIB1) informs its correspondence can be passed through.
In technique scheme, preferably, described signalling subelement is by reprovision signaling described in Physical Downlink Control Channel signaling, media access control signaling or radio resource control signalling.
In technique scheme, preferably, described parameter applying unit also comprises signaling and generates subelement, for: when described reprovision signaling is Physical Downlink Control Channel signaling, in the control information of described Physical Downlink Control Channel signaling, increase by the first configuration instructions field, in described first configuration instructions field, comprise the information of described first configuration parameter; When described reprovision signaling is media access control signaling, in described media access control signaling, increase control element, in described control element, comprise the information of described first configuration parameter; When described reprovision signaling is radio resource control signaling, in described radio resource control signaling, increase by the second configuration instructions field or increase new radio resource control layer signaling, described second configures the information comprising described first configuration parameter in instructions field or described new radio resource control layer signaling.
In this technical scheme, for Physical Downlink Control Channel (PDCCH) signaling, can at the control information (DCI of its carrying, Downlink Control Information) a middle increase territory, the coupling configuration used in order to indicate the next reprovision cycle, particularly, can be such as 3 bits " TDD Config Indicator " (TDD configures instruction) territory; For media access control (MAC) signaling, special MAC layer control element (CE) can be increased; For radio resource control (RRC, Radio Resource Control) signaling, a new information field (being such as called by this information field " TDD Config Indicator ") can be increased in the related signaling of rrc layer (such as " RRC Connection Reconfiguration " signaling) or increase a new rrc layer signaling.Certainly, here " increase " refers to by the protocol version before current R10/11(or other R12) based on and propose, comprise the use to existing reservation position/territory current in PDCCH, MAC or RRC, or add new position/territory, thus can be used in the information comprising the first configuration parameter proposed in the present invention.
In technique scheme, preferably, also comprise: walking direction unit, for obtaining the actual transmissions direction of each subframe of described Equations of The Second Kind communication equipment; Behavior limiting unit, inconsistent for nominal transfer direction that the described actual transmissions direction in given sub-frame is corresponding with described second configuration parameter, limits the operating function described given sub-frame corresponding to described nominal transfer direction.
In this technical scheme, for originally corresponding in the second configuration parameter be uplink/downlink subframe, and reality may become descending/sub-frame of uplink when being applied to Equations of The Second Kind communication equipment, thus causes the backward compatibility sex chromosome mosaicism for Equations of The Second Kind communication equipment.Therefore, when there are the problems referred to above, originally correspond to the operating function of uplink/downlink by limiting these subframes, the data avoiding the change due to sub-frame transmission direction to lead to errors send or receive, and enhance the backwards compatibility for Equations of The Second Kind communication equipment.
In technique scheme, preferably, when described operating function is 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 is down direction, and described behavior limiting unit forbids 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, described behavior limiting unit forbids that described appointment descending sub frame calls the downlink data of described Equations of The Second Kind communication equipment.
In this technical scheme, such as in a complete wireless frame structure, comprise 10 subframes that sequence number is 0 ~ 9, assuming that the actual transmissions direction that sequence number is the subframe of n changes, then forbid that this subframe calls corresponding data, guarantee that the Information Security of corresponding Equations of The Second Kind communication equipment and other functional modules can obtain correct data.
In technique scheme, preferably, when described operating function is measurement behavior, described behavior limiting unit limits described measurement behavior and comprises: ignoring actual transmissions direction is the measurement result that the descending sub frame of up direction is uploaded, and the merging treatment result of the last measurement result uploaded by the descending sub frame by actual transmissions direction being down direction or recently repetitive measurement result is as this measurement result; And/or limit the subframe place that described Equations of The Second Kind communication equipment is only 0,1,5,6 in sequence number and carry out down-run survey; And/or be the subframe that the descending sub frame of up direction is set to without the behavior of measurement by actual transmissions direction; And/or send and forbid measuring signaling, to forbid the down-run survey at descending sub frame place that described Equations of The Second Kind communication equipment is up direction in actual transmissions direction.
In this technical scheme, " the merging treatment result " of repetitive measurement result can be understood as and repetitive measurement result processed according to preset algorithm, such as calculate the mean value of repetitive measurement result, or sue for peace etc. after different weights are multiplied by different measuring result.Sequence number be 0,1,5,6 subframe be the descending sub frame of regulation, sub-frame of uplink can not be changed in ascending-descending subframes configuration, thus backward compatibility sex chromosome mosaicism can not be caused.By some subframes being set to the subframe without the behavior of measurement, such as MBSFN sub-frame (Multicast/Broadcast over Single Frequency Network, single frequency network multicast/broadcast sub-frame) or ABS subframe (Almost Blank Subframe), then these subframes would not proceed down-run survey, thus can not cause backward compatibility sex chromosome mosaicism.And adopting the mode forbidding measuring signaling, the time domain measurement resource that LTE such as can be used to define restriction (Timedomain measurement resource restriction) signaling limits down-run survey.
In technique scheme, preferably, when described operating function is transmission or the reception behavior features of signaling/channel, described behavior limiting unit limits the described transmission of 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, forbids the up transmission signaling/channel of described appointment sub-frame of uplink; And/or limit the up transmission that subframe place that described Equations of The Second Kind communication equipment is only 2 in sequence number carries out specifying signaling/channel; And/or limit the downlink reception that subframe place that described Equations of The Second Kind communication equipment is only 0,1,5,6 in sequence number carries out specifying signaling/channel.
In this technical scheme, when corresponding sub-frame of uplink is actual be downlink transmission direction time, need to limit, such as forbid that this subframe uplink sends the SRS(Soundingreference signals of needs transmission originally, ascending channel detecting pilot frequency), PRACH(Physical RandomChannel, Physical Random Access Channel) etc. signaling/channel.In current seven kinds of wireless frame structures, sequence number be 2 subframe be sub-frame of uplink, sequence number be 0,1,5,6 subframe be descending sub frame, therefore, only carry out upstream operation at 2 work song frames, only carry out downstream operation at 0,1,5,6 work song frames by regulation, the mistake caused when can effectively avoid sub-frame transmission direction to change.
In technique scheme, preferably, also comprise: information acquisition unit, for obtaining the characteristic information of described first kind communication equipment or described Equations of The Second Kind communication equipment; Functional switch unit, for opening described eIMTA function when the value of described characteristic information is more than or equal to predetermined threshold value, otherwise closes described eIMTA function.
In this technical scheme, obtained by the characteristic information of the communication equipment to specified type and compare, automatic switch can be carried out according to actual conditions to eIMTA function well, the performance loss avoiding manual control switch to cause and inconvenience.
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, the quantity of the communication equipment of active state is in described first kind communication equipment or 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, ratio shared in the quantity of all communication equipments of described total quantity in specified scope, all in specified scope of the described quantity being in active state are in ratio shared in the quantity of the communication equipment of active state, ratio shared in all outgoing data amounts of described outgoing data amount in specified scope.
In technique scheme, preferably, also comprise: message management unit, for when the configuration parameter that described second configuration parameter and described Equations of The Second Kind communication equipment were applied in the current reprovision cycle is different, forbid that described parameter applying unit notifies described second configuration parameter to described first kind communication equipment.
In this technical scheme, due in the prior art, when the parameter (as ascending-descending subframes ratio) of system information changes, need by paging(beep-page message) inform all UE, the parameter after making UE apply the change received, thus when the second configuration parameter changes, all UE will be sent to, make the UE of redaction both receive 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, thus avoiding the UE of redaction to receive the situation of various configurations parameter simultaneously, correctly can realize the configuration of ascending-descending subframes ratio.
According to another aspect of the invention, also proposed a kind of system, comprise the first kind communication equipment supporting eIMTA function and/or the Equations of The Second Kind communication equipment not supporting eIMTA function, and the base station as described in above-mentioned arbitrary technical scheme.
In this technical scheme, first kind communication equipment and redaction UE, and Equations of The Second Kind communication equipment and legacy version UE.For dissimilar communication equipment, different configuration parameters is adopted to realize the dynamic-configuration of time division duplex ascending-descending subframes ratio, avoid when using short weight to join the cycle and sacrifice legacy version UE performance, or sacrifice redaction UE performance when using the long reprovision cycle, by double-periodic application, the performance of two class UE can be taken into account, fully demonstrate the gain of dynamic-configuration to the overall performance of system.Particularly, corresponding to seven kinds of different wireless frame structures of 3GPP regulation, there are seven kinds of different ascending-descending subframes ratios, configuration parameter here just refers to certain ascending-descending subframes ratio therefrom selected.
According to another aspect of the invention, also proposed a kind of communication equipment, eIMTA function supported by described communication equipment, and described communication equipment comprises: data interaction unit, receives the first configuration parameter being used for configuring time division duplex ascending-descending subframes ratio; Data processing unit, for applying described first configuration parameter in the first reprovision cycle; Message ignores unit, for when described data interaction unit receives the second configuration parameter, ignores described second configuration parameter, to forbid described second configuration parameter of described data processing unit application; Wherein, described second configuration parameter for configuring the time division duplex ascending-descending subframes ratio of the communication equipment not supporting eIMTA function, with by described do not support the communication equipment of eIMTA function second the reprovision cycle apply described second configuration parameter.
In this technical scheme, due in the prior art, when the parameter (as ascending-descending subframes ratio) of system information changes, need by paging(beep-page message) inform all UE, the parameter after making UE apply the change received, thus when the second configuration parameter changes, all UE will be sent to, make the UE of redaction both receive the first configuration parameter, receive again the second configuration parameter, cause it correctly to process.Therefore, by initiatively ignoring the second configuration parameter received by redaction UE, thus avoiding the situation simultaneously receiving various configurations parameter, correctly can realize the configuration of ascending-descending subframes ratio.
By above technical scheme, when the communication equipment mixed networking of different editions, different configuration parameters can be adopted for different communication equipment, avoid the hydraulic performance decline causing section communication equipment when adopting single parameter.
Accompanying drawing explanation
Fig. 1 shows the structural representation of the TDD system in correlation technique;
Fig. 2 shows the structural representation of seven kinds of radio frames in the TDD system defined in correlation technique;
Fig. 3 shows the flow chart of the binary cycle Dynamic Configuration of TDD ascending-descending subframes ratio according to an embodiment of the invention;
Fig. 4 shows the block diagram of base station according to an embodiment of the invention;
Fig. 5 shows the block diagram of system according to an embodiment of the invention;
Fig. 6 shows the block diagram of communication equipment according to an embodiment of the invention;
Fig. 7 shows the flow chart being obtained the reprovision configuration parameter for dissimilar communication equipment according to an embodiment of the invention by statistic algorithm;
Fig. 8 shows the structural representation of the radio frames after the configuration carrying out time division duplex ascending-descending subframes ratio in correlation technique;
Fig. 9 shows the flow chart according to an embodiment of the invention legacy version UE being carried out to transfer of data and/or strategy interaction restriction;
Figure 10 shows the flow chart of automatic switch eIMTA function according to an embodiment of the invention.
Embodiment
In order to more clearly 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.It should be noted that, when not conflicting, the feature in the embodiment of the application and embodiment can combine mutually.
Set forth a lot of detail 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 by the restriction of following public specific embodiment.
Fig. 3 shows the flow chart of the binary cycle Dynamic Configuration of TDD ascending-descending subframes ratio according to an embodiment of the invention.
As shown in Figure 3, the binary cycle Dynamic Configuration of TDD ascending-descending subframes ratio according to an embodiment of the invention, for to supporting the first kind communication equipment of eIMTA function and not supporting that the Equations of The Second Kind communication equipment of eIMTA function carries out the configuration of time division duplex ascending-descending subframes ratio, described Dynamic Configuration comprises: step 302, determines the first configuration parameter of the time division duplex ascending-descending subframes ratio needing to be applied to first kind communication equipment; Step 304, according to used one or more history first configuration parameter of described first kind communication equipment, determines the second corresponding configuration parameter; Step 306, is applied to described first kind communication equipment by described first configuration parameter in the first reprovision cycle, and described 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 and redaction UE, and Equations of The Second Kind communication equipment and legacy version UE." reprovision cycle " is the predefined cycle, and in each reprovision cycle, system will select a kind of ascending-descending subframes ratio in above-mentioned seven kinds of wireless frame structures, with in the next reprovision cycle, by system, this ascending-descending subframes ratio will be applied to corresponding UE.This programme passes through for dissimilar communication equipment, different configuration parameters is adopted to realize the dynamic-configuration of time division duplex ascending-descending subframes ratio, avoid when using short weight to join the cycle and sacrifice legacy version UE performance, or sacrifice redaction UE performance when using the long reprovision cycle, by double-periodic application, the performance of two class UE can be taken into account, fully demonstrate the gain of dynamic-configuration to the overall performance of system.Particularly, corresponding to seven kinds of different wireless frame structures of 3GPP regulation, there are seven kinds of different ascending-descending subframes ratios, configuration parameter here just refers to certain ascending-descending subframes ratio therefrom selected.In addition, " history first configuration parameter " refer to the current reprovision cycle and before the reprovision cycle in be applied to the configuration parameter of first kind communication equipment, certainly, also can be set to the first configuration parameter comprising current acquisition.
In technique scheme, preferably, describedly determine that the step of the second corresponding configuration parameter comprises: using used number of times maximum in described first kind communication equipment at the appointed time window configuration parameter as described second configuration parameter; Or using the described first kind communication equipment configuration parameter that in used configuration parameter, upstream or downstream sub-frame number is minimum in described fixed time window as described second configuration parameter; Or using the described first kind communication equipment configuration parameter that in used configuration parameter, upstream or downstream sub-frame number is maximum in described fixed time window as described second configuration parameter; Or the configuration parameter to be used within a nearest reprovision cycle by described first kind communication equipment is as described second configuration parameter; Or using described first kind communication equipment when the configuration parameter that uses in the previous reprovision cycle is as described second configuration parameter.
In this technical scheme, the first configuration parameter needed for first kind communication equipment can adopt correlation technique to obtain, such as the upstream data total amount to be sent of all first kind communication equipments and base station are about to the ratio of the outgoing data total amount issued, and according to this outgoing data ratio, in seven kinds of TDD ascending-descending subframes ratios of 3GPP agreement regulation, find immediate configuration with it, this is configured as TDD ascending-descending subframes proportional arrangement to be used of next coupling cycle.And for the second configuration parameter, can according to the actual requirements or actual conditions, make differently to select.Certainly, it should be appreciated by those skilled in the art, except the various ways mentioned in such scheme, other NM modes obviously can also be adopted to carry out selecting the first configuration parameter for next reprovision cycle or the second configuration parameter.
In technique scheme, preferably, described determine the step of the second corresponding configuration parameter before, also comprise: for often kind of protocol definition configuration parameter presets at least one associated configuration parameter; And described determine the step of the second corresponding configuration parameter after, also comprise: obtain the described associated configuration parameter corresponding to described second configuration parameter, and substitute described 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, protocol definition configuration parameter refers to the ascending-descending subframes proportional arrangement that seven kinds of having specified in 3 gpp are different.Although directly the second configuration parameter determined according to history first configuration parameter can be applied to Equations of The Second Kind communication equipment, but for some actual needs, sometimes need to use the associated configuration parameter (by pre-setting the incidence relation between multiple configuration parameter) corresponding to the second configuration parameter, to be applied to Equations of The Second Kind communication equipment.Certainly, obviously also by pre-setting incidence relation, such as can not can pass through specific algorithm, directly being calculated the associated configuration parameter really needing to be applied to Equations of The Second Kind communication equipment by the second configuration parameter of Real-time Obtaining.
In technique scheme, preferably, the described step described first configuration parameter being applied to described first kind communication equipment comprises: send reprovision signaling, to inform that described first kind communication equipment applies described first configuration parameter in next reprovision cycle to described first kind communication equipment.
In this technical scheme, by arranging reprovision signaling, first kind communication equipment can be learnt, and self needs the configuration parameter of application.Particularly, such as often kind of ascending-descending subframes ratio corresponds to different parameters, then can indicate this parameter in this reprovision signaling, to represent corresponding ascending-descending subframes ratio.Here reprovision signaling can be the signaling not having, newly propose in the agreement of R10/11 or other current versions, also can be with the addition of new information in current existing signaling.Certainly, for Equations of The Second Kind communication equipment, the Equations of The Second Kind configuration parameter that system message (as SIB1) informs its correspondence can be passed through.
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 Physical Downlink Control Channel signaling, in the control information of described Physical Downlink Control Channel signaling, increase by the first configuration instructions field, in described first configuration instructions field, comprise the information of described first configuration parameter; When described reprovision signaling is media access control signaling, in described media access control signaling, increase control element, in described control element, comprise the information of described first configuration parameter; When described reprovision signaling is radio resource control signaling, in described radio resource control signaling, increase by the second configuration instructions field or increase new radio resource control layer signaling, described second configures the information comprising described first configuration parameter in instructions field or described new radio resource control layer signaling.
In this technical scheme, for Physical Downlink Control Channel (PDCCH) signaling, can at the control information (DCI of its carrying, Downlink Control Information) a middle increase territory, the coupling configuration used in order to indicate the next reprovision cycle, particularly, can be such as 3 bits " TDD Config Indicator " (TDD configures instruction) territory; For media access control (MAC) signaling, special MAC layer control element (CE) can be increased; For radio resource control (RRC, Radio Resource Control) signaling, a new information field (being such as called by this information field " TDD Config Indicator ") can be increased in the related signaling of rrc layer (such as " RRC Connection Reconfiguration " signaling) or increase a new rrc layer signaling.Certainly, here " increase " refers to by the protocol version before current R10/11(or other R12) based on and propose, comprise the use to existing reservation position/territory current in PDCCH, MAC or RRC, or add new position/territory, thus can be used in the information comprising the first configuration parameter proposed in the present invention.
In technique scheme, preferably, after described second configuration parameter is applied to described Equations of The Second Kind communication equipment, also comprise: the actual transmissions direction obtaining each subframe of described Equations of The Second Kind communication equipment; If the nominal transfer direction corresponding with described second configuration parameter, the described actual transmissions direction of given sub-frame is inconsistent, then limit the operating function described given sub-frame corresponding to described nominal transfer direction.
In this technical scheme, for originally corresponding in the second configuration parameter be uplink/downlink subframe, and reality may become descending/sub-frame of uplink when being applied to Equations of The Second Kind communication equipment, thus causes the backward compatibility sex chromosome mosaicism for Equations of The Second Kind communication equipment.Therefore, when there are the problems referred to above, originally correspond to the operating function of uplink/downlink by limiting these subframes, the data avoiding the change due to sub-frame transmission direction to lead to errors send or receive, and enhance the backwards compatibility for Equations of The Second Kind communication equipment.
In technique scheme, preferably, when described operating function is transfer of data behavior, the step limiting 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, forbids 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, such as in a complete wireless frame structure, comprise 10 subframes that sequence number is 0 ~ 9, assuming that the actual transmissions direction that sequence number is the subframe of n changes, then forbid that this subframe calls corresponding data, guarantee that the Information Security of corresponding Equations of The Second Kind communication equipment and other functional modules can obtain correct data.
In technique scheme, preferably, when described operating function is measurement behavior, the step limiting described measurement behavior comprises: be the measurement result that the descending sub frame of up direction is uploaded by actual transmissions direction, and the merging treatment result of the last measurement result uploaded by the descending sub frame by actual transmissions direction being down direction or recently repetitive measurement result is as this measurement result; And/or limit the subframe place that described Equations of The Second Kind communication equipment is only 0,1,5,6 in sequence number and carry out down-run survey; And/or be the subframe that the descending sub frame of up direction is set to without the behavior of measurement by actual transmissions direction; And/or send and forbid measuring signaling, to forbid the down-run survey at descending sub frame place that described Equations of The Second Kind communication equipment is up direction in actual transmissions direction.
In this technical scheme, " the merging treatment result " of repetitive measurement result can be understood as and repetitive measurement result processed according to preset algorithm, such as calculate the mean value of repetitive measurement result, or sue for peace etc. after different weights are multiplied by different measuring result.Sequence number be 0,1,5,6 subframe be the descending sub frame of regulation, sub-frame of uplink can not be changed in ascending-descending subframes configuration, thus backward compatibility sex chromosome mosaicism can not be caused.By some subframes being set to the subframe without the behavior of measurement, such as MBSFN sub-frame (Multicast/Broadcast over Single Frequency Network, single frequency network multicast/broadcast sub-frame) or ABS subframe (Almost Blank Subframe), then these subframes would not proceed down-run survey, thus can not cause backward compatibility sex chromosome mosaicism.And adopting the mode forbidding measuring signaling, the time domain measurement resource that LTE such as can be used to define restriction (Timedomain measurement resource restriction) signaling limits down-run survey.
In technique scheme, preferably, when described operating function is transmission or the reception behavior features of signaling/channel, limit the described transmission of 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 limit the up transmission that subframe place that described Equations of The Second Kind communication equipment is only 2 in sequence number carries out specifying signaling/channel; And/or limit the downlink reception that subframe place that described Equations of The Second Kind communication equipment is only 0,1,5,6 in sequence number carries out specifying signaling/channel.
In this technical scheme, when corresponding sub-frame of uplink is actual be downlink transmission direction time, need to limit, such as forbid that this subframe uplink sends the SRS(Soundingreference signals of needs transmission originally, ascending channel detecting pilot frequency), PRACH(Physical RandomChannel, Physical Random Access Channel) etc. signaling/channel.In current seven kinds of wireless frame structures, sequence number be 2 subframe be sub-frame of uplink, sequence number be 0,1,5,6 subframe be descending sub frame, therefore, only carry out upstream operation at 2 work song frames, only carry out downstream operation at 0,1,5,6 work song frames by regulation, the mistake caused when can effectively avoid sub-frame transmission direction to change.
In technique scheme, preferably, also comprise: the characteristic information obtaining described first kind communication equipment or described Equations of The Second Kind communication equipment; When the value of described characteristic information is more than or equal to predetermined threshold value, then open described eIMTA function, otherwise close described eIMTA function.
In this technical scheme, obtained by the characteristic information of the communication equipment to specified type and compare, automatic switch can be carried out according to actual conditions to eIMTA function well, the performance loss avoiding manual control switch to cause and inconvenience.
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, the quantity of the communication equipment of active state is in described first kind communication equipment or 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, ratio shared in the quantity of all communication equipments of described total quantity in specified scope, all in specified scope of the described quantity being in active state are in ratio shared in the quantity of the communication equipment of active state, ratio shared in all outgoing data amounts of described outgoing data amount in specified scope.
In technique scheme, preferably, also comprise: when the configuration parameter that described second configuration parameter and described Equations of The Second Kind communication equipment were applied in the current reprovision cycle is different, forbid notifying described second configuration parameter to described first kind communication equipment.
In this technical scheme, due in the prior art, when the parameter (as ascending-descending subframes ratio) of system information changes, need by paging(beep-page message) inform all UE, the parameter after making UE apply the change received, thus when the second configuration parameter changes, all UE will be sent to, make the UE of redaction both receive 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, thus avoiding the UE of redaction to receive the situation of various configurations parameter simultaneously, correctly can realize the configuration of ascending-descending subframes ratio.
Fig. 4 shows the block diagram of base station according to an embodiment of the invention.
As shown in Figure 4, base station 400 according to an embodiment of the invention, the first kind communication equipment supporting eIMTA function and the Equations of The Second Kind communication equipment not supporting eIMTA function are served in described base station 400, described base station 400 comprises: parameter determination unit 402, for determining the first configuration parameter of the time division duplex ascending-descending subframes ratio needing to be applied to first kind communication equipment, and according to used one or more history first configuration parameter of described first kind communication equipment, determine the second corresponding configuration parameter; Parameter applying unit 404, for described first configuration parameter is applied to described first kind communication equipment in the first reprovision cycle, and is applied to described Equations of The Second Kind communication equipment by described second configuration parameter in the second reprovision cycle.
In this technical scheme, first kind communication equipment and redaction UE, and Equations of The Second Kind communication equipment and legacy version UE." reprovision cycle " is the predefined cycle, and in each reprovision cycle, system will select a kind of ascending-descending subframes ratio in above-mentioned seven kinds of wireless frame structures, with in the next reprovision cycle, by system, this ascending-descending subframes ratio will be applied to corresponding UE.This programme passes through for dissimilar communication equipment, different configuration parameters is adopted to realize the dynamic-configuration of time division duplex ascending-descending subframes ratio, avoid when using short weight to join the cycle and sacrifice legacy version UE performance, or sacrifice redaction UE performance when using the long reprovision cycle, by double-periodic application, the performance of two class UE can be taken into account, fully demonstrate the gain of dynamic-configuration to the overall performance of system.Particularly, corresponding to seven kinds of different wireless frame structures of 3GPP regulation, there are seven kinds of different ascending-descending subframes ratios, configuration parameter here just refers to certain ascending-descending subframes ratio therefrom selected.In addition, " history first configuration parameter " refer to the current reprovision cycle and before the reprovision cycle in be applied to the configuration parameter of first kind communication equipment, certainly, also can be set to the first configuration parameter comprising current acquisition.
In technique scheme, preferably, the configuration parameter that described parameter determination unit 402 will use number of times maximum in described first kind communication equipment at the appointed time window, the described first kind communication equipment configuration parameter that in used configuration parameter, upstream or downstream sub-frame number is minimum in described fixed time window, the described first kind communication equipment configuration parameter that in used configuration parameter, upstream or downstream sub-frame number is maximum in described fixed time window, the configuration parameter that described first kind communication equipment uses within a nearest reprovision cycle or described first kind communication equipment are when the configuration parameter used in the previous reprovision cycle is as described second configuration parameter.
In this technical scheme, the first configuration parameter needed for first kind communication equipment can adopt correlation technique to obtain, such as the upstream data total amount to be sent of all first kind communication equipments and base station are about to the ratio of the outgoing data total amount issued, and according to this outgoing data ratio, in seven kinds of TDD ascending-descending subframes ratios of 3GPP agreement regulation, find immediate configuration with it, this is configured as TDD ascending-descending subframes proportional arrangement to be used of next coupling cycle.And for the second configuration parameter, can according to the actual requirements or actual conditions, make differently to select.Certainly, it should be appreciated by those skilled in the art, except the various ways mentioned in such scheme, other NM modes obviously can also be adopted to carry out selecting the first configuration parameter for next reprovision cycle or the second configuration parameter.
In technique scheme, preferably, also comprise: association setting unit 406, for presetting at least one associated configuration parameter for often kind of protocol definition configuration parameter; Wherein, described parameter determination unit 402 also obtains the described associated configuration parameter corresponding to described second configuration parameter, and substitutes described 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, protocol definition configuration parameter refers to the ascending-descending subframes proportional arrangement that seven kinds of having specified in 3 gpp are different.Although directly the second configuration parameter determined according to history first configuration parameter can be applied to Equations of The Second Kind communication equipment, but for some actual needs, sometimes need to use the associated configuration parameter (by pre-setting the incidence relation between multiple configuration parameter) corresponding to the second configuration parameter, to be applied to Equations of The Second Kind communication equipment.Certainly, obviously also by pre-setting incidence relation, such as can not can pass through specific algorithm, directly being calculated the associated configuration parameter really needing to be applied to 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, for sending reprovision signaling, to inform that described first kind communication equipment applies described first configuration parameter in next reprovision cycle to described first kind communication equipment.
In this technical scheme, by arranging reprovision signaling, first kind communication equipment can be learnt, and self needs the configuration parameter of application.Particularly, such as often kind of ascending-descending subframes ratio corresponds to different parameters, then can indicate this parameter in this reprovision signaling, to represent corresponding ascending-descending subframes ratio.Here reprovision signaling can be the signaling not having, newly propose in the agreement of R10/11 or other current versions, also can be with the addition of new information in current existing signaling.Certainly, for Equations of The Second Kind communication equipment, the Equations of The Second Kind configuration parameter that system message (as SIB1) informs its correspondence can be passed through.
In technique scheme, preferably, described signalling subelement 4042 is by reprovision signaling described in Physical Downlink Control Channel signaling, media access control signaling or radio resource control signalling.
In technique scheme, preferably, described parameter applying unit 404 also comprises signaling and generates subelement 4044, for: when described reprovision signaling is Physical Downlink Control Channel signaling, in the control information of described Physical Downlink Control Channel signaling, increase by the first configuration instructions field, in described first configuration instructions field, comprise the information of described first configuration parameter; When described reprovision signaling is media access control signaling, in described media access control signaling, increase control element, in described control element, comprise the information of described first configuration parameter; When described reprovision signaling is radio resource control signaling, in described radio resource control signaling, increase by the second configuration instructions field or increase new radio resource control layer signaling, described second configures the information comprising described first configuration parameter in instructions field or described new radio resource control layer signaling.
In this technical scheme, for Physical Downlink Control Channel (PDCCH) signaling, can at the control information (DCI of its carrying, Downlink Control Information) a middle increase territory, the coupling configuration used in order to indicate the next reprovision cycle, particularly, can be such as 3 bits " TDD Config Indicator " (TDD configures instruction) territory; For media access control (MAC) signaling, special MAC layer control element (CE) can be increased; For radio resource control (RRC, Radio Resource Control) signaling, a new information field (being such as called by this information field " TDD Config Indicator ") can be increased in the related signaling of rrc layer (such as " RRC Connection Reconfiguration " signaling) or increase a new rrc layer signaling.Certainly, here " increase " refers to by the protocol version before current R10/11(or other R12) based on and propose, comprise the use to existing reservation position/territory current in PDCCH, MAC or RRC, or add new position/territory, thus can be used in the information comprising the first configuration parameter proposed in the present invention.
In technique scheme, preferably, also comprise: walking direction unit 408, for obtaining the actual transmissions direction of each subframe of described Equations of The Second Kind communication equipment; Behavior limiting unit 410, inconsistent for nominal transfer direction that the described actual transmissions direction in given sub-frame is corresponding with described second configuration parameter, limits the operating function described given sub-frame corresponding to described nominal transfer direction.
In this technical scheme, for originally corresponding in the second configuration parameter be uplink/downlink subframe, and reality may become descending/sub-frame of uplink when being applied to Equations of The Second Kind communication equipment, thus causes the backward compatibility sex chromosome mosaicism for Equations of The Second Kind communication equipment.Therefore, when there are the problems referred to above, originally correspond to the operating function of uplink/downlink by limiting these subframes, the data avoiding the change due to sub-frame transmission direction to lead to errors send or receive, and enhance the backwards compatibility for Equations of The Second Kind communication equipment.
In technique scheme, preferably, when described operating function is transfer of data behavior, described behavior limiting unit 410 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 is down direction, and described behavior limiting unit forbids 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, described behavior limiting unit forbids that described appointment descending sub frame calls the downlink data of described Equations of The Second Kind communication equipment.
In this technical scheme, such as in a complete wireless frame structure, comprise 10 subframes that sequence number is 0 ~ 9, assuming that the actual transmissions direction that sequence number is the subframe of n changes, then forbid that this subframe calls corresponding data, guarantee that the Information Security of corresponding Equations of The Second Kind communication equipment and other functional modules can obtain correct data.
In technique scheme, preferably, when described operating function is measurement behavior, described behavior limiting unit 410 limits described measurement behavior and comprises: ignoring actual transmissions direction is the measurement result that the descending sub frame of up direction is uploaded, and the merging treatment result of the last measurement result uploaded by the descending sub frame by actual transmissions direction being down direction or recently repetitive measurement result is as this measurement result; And/or limit the subframe place that described Equations of The Second Kind communication equipment is only 0,1,5,6 in sequence number and carry out down-run survey; And/or be the subframe that the descending sub frame of up direction is set to without the behavior of measurement by actual transmissions direction; And/or send and forbid measuring signaling, to forbid the down-run survey at descending sub frame place that described Equations of The Second Kind communication equipment is up direction in actual transmissions direction.
In this technical scheme, " the merging treatment result " of repetitive measurement result can be understood as and repetitive measurement result processed according to preset algorithm, such as calculate the mean value of repetitive measurement result, or sue for peace etc. after different weights are multiplied by different measuring result.Sequence number be 0,1,5,6 subframe be the descending sub frame of regulation, sub-frame of uplink can not be changed in ascending-descending subframes configuration, thus backward compatibility sex chromosome mosaicism can not be caused.By some subframes being set to the subframe without the behavior of measurement, such as MBSFN sub-frame (Multicast/Broadcast over Single Frequency Network, single frequency network multicast/broadcast sub-frame) or ABS subframe (Almost Blank Subframe), then these subframes would not proceed down-run survey, thus can not cause backward compatibility sex chromosome mosaicism.And adopting the mode forbidding measuring signaling, the time domain measurement resource that LTE such as can be used to define restriction (Timedomain measurement resource restriction) signaling limits down-run survey.
In technique scheme, preferably, when described operating function is transmission or the reception behavior features of signaling/channel, described behavior limiting unit limits the described transmission of 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, forbids the up transmission signaling/channel of described appointment sub-frame of uplink; And/or limit the up transmission that subframe place that described Equations of The Second Kind communication equipment is only 2 in sequence number carries out specifying signaling/channel; And/or limit the downlink reception that subframe place that described Equations of The Second Kind communication equipment is only 0,1,5,6 in sequence number carries out specifying signaling/channel.
In this technical scheme, when corresponding sub-frame of uplink is actual be downlink transmission direction time, need to limit, such as forbid that this subframe uplink sends the SRS(Soundingreference signals of needs transmission originally, ascending channel detecting pilot frequency), PRACH(Physical RandomChannel, Physical Random Access Channel) etc. signaling/channel.In current seven kinds of wireless frame structures, sequence number be 2 subframe be sub-frame of uplink, sequence number be 0,1,5,6 subframe be descending sub frame, therefore, only carry out upstream operation at 2 work song frames, only carry out downstream operation at 0,1,5,6 work song frames by regulation, the mistake caused when can effectively avoid sub-frame transmission direction to change.
In technique scheme, preferably, also comprise: information acquisition unit 412, for obtaining the characteristic information of described first kind communication equipment or described Equations of The Second Kind communication equipment; Functional switch unit 414, for opening described eIMTA function when the value of described characteristic information is more than or equal to predetermined threshold value, otherwise closes described eIMTA function.
In this technical scheme, obtained by the characteristic information of the communication equipment to specified type and compare, automatic switch can be carried out according to actual conditions to eIMTA function well, the performance loss avoiding manual control switch to cause and inconvenience.
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, the quantity of the communication equipment of active state is in described first kind communication equipment or 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, ratio shared in the quantity of all communication equipments of described total quantity in specified scope, all in specified scope of the described quantity being in active state are in ratio shared in the quantity of the communication equipment of active state, ratio shared in all outgoing data amounts of described outgoing data amount in specified scope.
In technique scheme, preferably, also comprise: message management unit 416, for when the configuration parameter that described second configuration parameter and described Equations of The Second Kind communication equipment were applied in the current reprovision cycle is different, forbid that described parameter applying unit 404 notifies described second configuration parameter to described first kind communication equipment.
In this technical scheme, due in the prior art, when the parameter (as ascending-descending subframes ratio) of system information changes, need by paging(beep-page message) inform all UE, the parameter after making UE apply the change received, thus when the second configuration parameter changes, all UE will be sent to, make the UE of redaction both receive 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, thus avoiding the UE of redaction to receive the situation of various configurations parameter simultaneously, correctly can realize the configuration of ascending-descending subframes ratio.
Fig. 5 shows the block diagram of system according to an embodiment of the invention.
As shown in Figure 5, system 500 according to an embodiment of the invention, comprises terminal 502 and base station as shown in Figure 4 400, and wherein, terminal 502 comprises the first kind communication equipment supporting eIMTA function and/or the Equations of The Second Kind communication equipment not supporting eIMTA function.
In this technical scheme, first kind communication equipment and redaction UE, and Equations of The Second Kind communication equipment and legacy version UE.For dissimilar communication equipment, different configuration parameters is adopted to realize the dynamic-configuration of time division duplex ascending-descending subframes ratio, avoid when using short weight to join the cycle and sacrifice legacy version UE performance, or sacrifice redaction UE performance when using the long reprovision cycle, by double-periodic application, the performance of two class UE can be taken into account, fully demonstrate the gain of dynamic-configuration to the overall performance of system.Particularly, corresponding to seven kinds of different wireless frame structures of 3GPP regulation, there are seven kinds of different ascending-descending subframes ratios, configuration parameter here just refers to certain ascending-descending subframes ratio therefrom selected.
Fig. 6 shows the block diagram of communication equipment according to an embodiment of the invention.
As shown in Figure 6, communication equipment 600 according to an embodiment of the invention, eIMTA function supported by described communication equipment 600, and described communication equipment 600 comprises: data interaction unit 602, receives the first configuration parameter being used for configuring time division duplex ascending-descending subframes ratio; Data processing unit 604, for applying described first configuration parameter in the first reprovision cycle; Message ignores unit 606, for when described data interaction unit 602 receives the second configuration parameter, ignores described second configuration parameter, to forbid that described data processing unit 604 applies described second configuration parameter; Wherein, described second configuration parameter for configuring the time division duplex ascending-descending subframes ratio of the communication equipment not supporting eIMTA function, with by described do not support the communication equipment of eIMTA function second the reprovision cycle apply described second configuration parameter.
In this technical scheme, due in the prior art, when the parameter (as ascending-descending subframes ratio) of system information changes, need by paging(beep-page message) inform all UE, the parameter after making UE apply the change received, thus when the second configuration parameter changes, all UE will be sent to, make the UE of redaction both receive the first configuration parameter, receive again the second configuration parameter, cause it correctly to process.Therefore, by initiatively ignoring the second configuration parameter received by redaction UE, thus avoiding the situation simultaneously receiving various configurations parameter, correctly can 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, " advanced UE " and " Legacy UE " is applicable to the reprovision cycle of different length: " advanced UE " can according to the reprovision signaling of new definition dynamically quick reprovision TDD ascending-descending subframes ratio (the reprovision cycle can be less than 10ms); " Legacy UE " can only realize the dynamic reprovision of TDD ascending-descending subframes ratio by " system information " that the update cycle is longer.According to the reprovision algorithm in existing single reprovision cycle, according to the larger reprovision cycle, the performance gain of the dynamic-configuration of eIMTA cannot fully demonstrate; According to the less reprovision cycle, " Legacy UE " cannot realize reprovision again.
Therefore, in the inventive solutions, under the scene for " advanced UE " and " Legacy UE " mixed networking, it is desirable to, by mining massively to different user with the reprovision cycle of different length, to avoid the decline of the user performance adopting the single reprovision cycle to cause.
Particularly, can realize mining massively with the reprovision cycle of different length to different user by the present invention proposes " statistic algorithm ", wherein, Fig. 7 shows the flow chart being obtained the reprovision configuration parameter for dissimilar communication equipment according to an embodiment of the invention by statistic algorithm.
As shown in Figure 7, the specific implementation flow process of " statistic algorithm " comprising:
Step 702, activated user divides into groups.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 " (refer to that user terminal agreement supports the eIMTA function of Rel-12 definition, can fast dynamic reprovision TDD ascending-descending subframes proportional arrangement); " Legacy UE group " comprises all " Legacy UE " (refer to the eIMTA function that user terminal agreement does not support Rel-12 to define, can not fast dynamic reprovision TDD ascending-descending subframes proportional arrangement).The triggering of user grouping can be periodic triggers, also can be that event triggers.
Step 704, the coupling configuration ii that acquisition is applied to " advanced UE group ", such as in the scope that base station performs dynamic conditioning (such as in a community), calculate the ratio that the upstream data total amount to be sent of all advanced UE and base station are about to the outgoing data total amount issued, 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 immediate configuration with it, using this configuration as TDD ascending-descending subframes proportional arrangement to be used of next coupling cycle.
Step 706, is applied to configuration ii " advanced UE group ", and returns step 704 in each reprovision cycle, constantly obtains new configuration ii.
Particularly, reprovision order can be informed the terminal in " advanced UE group " by base station by reprovision signaling, in order to meet the reprovision cycle faster, this reprovision signaling can be:
Newly-increased PDCCH (Physical Downlink Control Channel) signaling: " TDD Config Indicator " (TDD the configures instruction) territory increasing by 3 bits in control information (DCI) configures in order to indicate the coupling 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: the information field " Tdd CongIndic ator " that increase by is new in rrc layer signaling " RRCConnection Reconfiguration " signaling.
Step 708, each obtain will be applied to the configuration ii of " advanced UE group " after (obviously also can simultaneously or before it), by to " advanced UE group " in history (current reprovision cycle and reprovision cycle before) used configuration carry out statistical calculation, obtain configuring ii ', and find the coupling configuration iii corresponding to configuration ii ', to be applied to " Legacy UE group ".Particularly, the method obtaining configuration ii ' comprises:
Algorithm 1, will in certain time window, the coupling configuration ii that occurrence number is maximum nas the coupling configuration ii ' of " Legacy UE group ";
Algorithm 2, will in certain time window, the coupling configuration ii of the uplink/downlink subframe ratio minimum (or maximum) occurred nas the coupling configuration ii ' of " Legacy UE group ";
Algorithm 3, the coupling configuration ii will used in the last to " advanced UE group " the reprovision cycle nas the coupling configuration ii ' of " Legacy UE group ".
And to configure ii ' with configuration iii be establish incidence relation ground in advance, corresponding configuration iii thus directly can be found by the configuration ii ' obtained, to be applied to " Legacy UE group ".
Step 710, obtains the coupling configuration iii of " Legacy UE group ".
Step 712, is applied to configuration iii " Legacy UE group ", and returns step 710 in each reprovision cycle, constantly obtains new configuration iii.
After carrying out the TDD ascending-descending subframes ratio reprovision to " Legacy UE group " by statistic algorithm as shown in Figure 7, the performance of Legacy UE obtains larger raising.Coupling configuration due to " Legacy UE group " mates configuration statistics by " advanced UE group " to obtain, and " Legacy UE group " coupling configuration iii come according to statistic algorithm meets business load in following a period of time from the statistical significance to the requirement of ascending-descending subframes ratio.Therefore, the Legacy UE backward compatibility sex chromosome mosaicism caused because sub-frame transmission direction changes (be descending (or up) subframe as Legacy UE, and be actually up (or descending) subframe) is avoided to the full extent.
But in practical application, coupling that statistical forecast goes out configuration iii still cannot avoid changing the Legacy UE backward compatibility sex chromosome mosaicism caused due to sub-frame transmission direction completely.Particularly, this problem as shown in Figure 8, includes special subframe 802, sub-frame of uplink 804 and descending sub frame 806 in each radio frames.After coupling configuration iii is applied to Legacy UE, radio frames 2 is obtained after radio frames 1 carries out reprovision, in the ideal situation, result corresponding to coupling configuration iii should be the structure in Fig. 8 shown in the first half, namely sequence number be 3,4,8,9 subframe be descending sub frame 806, but actual subframe structure is the structure in Fig. 7 shown in the latter half, namely sequence number be 3,4,8,9 subframe all become sub-frame of uplink 804.
The situation of mistake may be there is in above-mentioned transmission direction, the present invention proposes the solution shown in Fig. 9.
As shown in Figure 9, this solution comprises:
Step 902, is applied to Legacy UE group by configuration iii.
Step 904, judges that whether the actual transmissions direction of each subframe is with consistent corresponding to the desired transmission direction configuring iii, if unanimously, then do not process, otherwise enters step 906.
Step 906, limits the transmission of the UE in Legacy UE group or reception behavior features, comprising:
1, transfer of data restriction
When sub-frame of uplink (or descending sub frame) #n mating configuration iii is descending sub frame (sub-frame of uplink) in systems in practice, utilize the scheduler of base station end to limit up (descending) data dispatch, forbid up (descending) data of dispatching Legacy UE at subframe #n.
2, measurement row is restriction
(1) when the descending sub frame #nn mating configuration iii is sub-frame of uplink in systems in practice, the measurement reported result gone out at subframe #nn will be ignored in base station, and be used in the measurement result that the nearest real descending sub frame UE measurement result before subframe #nn measures as this; Or use nearest several real descending sub frame UE measurement result to carry out merging prediction (suing for peace after such as calculating the mean value of multiple measurement result or weighting), and the result measured as this UE that predicts the outcome that will obtain.
(2) limit Legacy UE only at subframe #0, #1, #5, #6(as shown in Figure 2, subframe #0, #1, #5, #6 are descending sub frame in all TDD configurations) place carries out down-run survey.
(3) subframe without UE measurement behavior utilizing LTE to define forbids that UE carries out down-run survey at this subframe place.As subframe #n being set to MBSFN sub-frame (Multicast/Broadcastover Single Frequency Network, single frequency network multicast/broadcast sub-frame) subframe or ABS subframe (Almost Blank Subframe).
(4) what utilize LTE to define forbids that UE measures signaling and forbids the down-run survey of UE at subframe #n place.Time domain measurement resource restriction (the Time domain measurementresource restriction) signaling defined as used LTE limits UE measurement.
3, the reception/transmission restriction of signaling (channel)
(1) if the actual transmissions direction of sub-frame of uplink is down direction, then some signalings (channel) needing in uplink receiving or up transmission of restriction sending/receiving, as SRS(ascending channel detecting pilot frequency), PRACH(Physical Random Access Channel) etc.
(2) find through observing, in the transmission configuration of the above-mentioned signaling (channel) defined in existing LTE protocol, certain some configurations specify this signaling (signal) only forever for descending sub frame (or being sub-frame of uplink forever) place sends, as configured for seven kinds of TDD, subframe #2 is sub-frame of uplink, and subframe #0,1,5,6 is descending sub frame.Therefore, the signaling (channel) of above-mentioned needs in uplink receiving or up transmission can be configured only at the up transmission in above-mentioned subframe #2 place or uplink receiving, and configuration need downlink reception or descending transmission signaling (channel) only subframe #0,1,5, the descending transmission in 6 places or downlink reception.
In addition, the present invention can also carry out automatic decision and process to whether opening eIMTA function, and specifically as shown in Figure 10, handling process comprises:
Step 1002, gathers customer group information.So-called " customer group information " refers in the present invention the characteristic information that certain " customer group " possesses jointly, such as:
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 user of business transmission) of " customer group ";
be somebody's turn to do " customer group " outgoing data amount;
should the ratio shared in all numbers of users of (as in a community) or active users within the scope of its TDD dynamic conditioning of the number of users of " customer group " or active users;
be somebody's turn to do the ratio that user in " customer group " has data volume to be sent shared in (as in a community) all data total amounts to be sent within the scope of its TDD dynamic conditioning.
Particularly, " customer group " here can refer to " advanced UE group ", also can refer to " Legacy UE group ".
Step 1004, assuming that the numerical value of the characteristic information of " customer group " that collect is A, and the threshold value preset is B, if A is more than or equal to B, then enters step 1006, otherwise enters step 1008.Particularly, if the ratio of the criterion A shared total number of users (or total active users) that is " advanced UE group " number of users (or active users) or data volume or data volume, then pre-determined threshold B is greater than the decimal that 0 is less than or equal to 1; If criterion A is the absolute figure of number of users or active users or traffic carrying capacity pending, then pre-determined threshold B also should be corresponding absolute figure.
Step 1006, opens eIMTA function.
Step 1008, closes eIMTA function.
More than be described with reference to the accompanying drawings technical scheme of the present invention, consider in correlation technique, cannot process preferably the situation of new and old edition UE mixed networking, the present invention proposes the Dynamic Configuration of time division duplex ascending-descending subframes ratio, base station, system and communication equipment, when the communication equipment mixed networking of different editions, different configuration parameters can be adopted for different communication equipment, avoid the hydraulic performance decline causing section communication equipment when adopting single parameter.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, 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 amendment done, equivalent 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, for to supporting the first kind communication equipment of eIMTA function and not supporting that the Equations of The Second Kind communication equipment of eIMTA function carries out the configuration of time division duplex ascending-descending subframes ratio, it is characterized in that, described Dynamic Configuration comprises:
Determine the first configuration parameter of the time division duplex ascending-descending subframes ratio needing to be applied to first kind communication equipment;
According to used one or more history first configuration parameter of described first kind communication equipment, determine the second corresponding configuration parameter;
Described first configuration parameter is applied to described first kind communication equipment in the first reprovision cycle, and described 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, describedly determines that the step of the second corresponding configuration parameter comprises:
Using used number of times maximum in described first kind communication equipment at the appointed time window configuration parameter as described second configuration parameter; Or
Using configuration parameter minimum for upstream or downstream sub-frame number in used configuration parameter in described first kind communication equipment at the appointed time window as described second configuration parameter; Or
Using configuration parameters maximum for upstream or downstream sub-frame number in used configuration parameter in described first kind communication equipment at the appointed time window as described second configuration parameter; Or
The configuration parameter used within a nearest reprovision cycle by described first kind communication equipment is as described second configuration parameter; Or
Using described first kind communication equipment when the configuration parameter that uses in the previous reprovision cycle is as described second configuration parameter.
3. Dynamic Configuration according to claim 2, is characterized in that, described determine the step of the second corresponding configuration parameter before, also comprise:
For often kind of protocol definition configuration parameter presets at least one associated configuration parameter; And
Described determine the step of the second corresponding configuration parameter after, also comprise:
Obtain the described associated configuration parameter corresponding to described second configuration parameter, and substitute described 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 described first configuration parameter being applied to described first kind communication equipment comprises:
Reprovision signaling is sent, to inform that described first kind communication equipment applies described first configuration parameter in next reprovision cycle to described first kind communication equipment.
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 Physical Downlink Control Channel signaling, in the control information of described Physical Downlink Control Channel signaling, increase by the first configuration instructions field, in described first configuration instructions field, comprise the information of described first configuration parameter;
When described reprovision signaling is media access control signaling, in described media access control signaling, increase control element, in described control element, comprise the information of described first configuration parameter;
When described reprovision signaling is radio resource control signaling, in described radio resource control signaling, increase by the second configuration instructions field or increase new radio resource control layer signaling, described second configures the information comprising described first configuration parameter in instructions field or described new radio resource control layer signaling.
7. Dynamic Configuration according to claim 1, is characterized in that, after described 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 transfer direction corresponding with described second configuration parameter, the described actual transmissions direction of given sub-frame is inconsistent, then limit the operating function described given sub-frame corresponding to described nominal transfer direction.
8. Dynamic Configuration according to claim 7, is characterized in that, when described operating function is transfer of data behavior, the step limiting 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; Or when described operating function is measurement behavior, the step limiting described measurement behavior comprises:
Ignoring actual transmissions direction is the measurement result that the descending sub frame of up direction is uploaded, and the merging treatment result of the last measurement result uploaded by the descending sub frame by actual transmissions direction being down direction or recently repetitive measurement result is as this measurement result; And/or
Limit the subframe place that described Equations of The Second Kind communication equipment is only 0,1,5,6 in sequence number and carry out down-run survey; And/or
It is the subframe that the descending sub frame of up direction is set to without the behavior of measurement by actual transmissions direction; And/or
Transmission is forbidden measuring signaling, to forbid the down-run survey at descending sub frame place that described Equations of The Second Kind communication equipment is up direction in actual transmissions direction;
Or when described operating function is transmission or the reception behavior features of signaling/channel, limit the described transmission of 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
Limit the up transmission that subframe place that described Equations of The Second Kind communication equipment is only 2 in sequence number carries out specifying signaling/channel; And/or
Limit the downlink reception that subframe place that described Equations of The Second Kind communication equipment is only 0,1,5,6 in sequence number carries out specifying signaling/channel.
9. Dynamic Configuration according to any one of claim 1 to 8, 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 is 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, the quantity of the communication equipment of active state is in described first kind communication equipment or 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, ratio shared in the quantity of all communication equipments of described total quantity in specified scope, all in specified scope of the described quantity being in active state are in ratio shared in the quantity of the communication equipment of active state, ratio shared in all outgoing data amounts of described outgoing data amount in specified scope.
11. Dynamic Configuration according to any one of claim 1 to 8, is characterized in that, also comprise:
When the configuration parameter that described second configuration parameter and described Equations of The Second Kind communication equipment were applied in the current reprovision cycle is different, forbid notifying described second configuration parameter to described first kind communication equipment.
12. 1 kinds of base stations, the first kind communication equipment supporting eIMTA function and the Equations of The Second Kind communication equipment not supporting eIMTA function are served in described base station, and it is characterized in that, described base station comprises:
Parameter determination unit, for determining the first configuration parameter of the time division duplex ascending-descending subframes ratio needing to be applied to first kind communication equipment, and according to used one or more history first configuration parameter of described first kind communication equipment, determine the second corresponding configuration parameter;
Parameter applying unit, for described first configuration parameter is applied to described first kind communication equipment in the first reprovision cycle, and is applied to described Equations of The Second Kind communication equipment by described second configuration parameter in the second reprovision cycle.
13. base stations according to claim 12, it is characterized in that, the configuration parameter that described parameter determination unit will use number of times maximum in described first kind communication equipment at the appointed time window, the described first kind communication equipment configuration parameter that at the appointed time in used configuration parameter, upstream or downstream sub-frame number is minimum in window, the described first kind communication equipment configuration parameter that at the appointed time in used configuration parameter, upstream or downstream sub-frame number is maximum in window, the configuration parameter that described first kind communication equipment uses within a nearest reprovision cycle or described first kind communication equipment are when the configuration parameter used in the previous reprovision cycle is as described second configuration parameter.
14. base stations according to claim 13, is characterized in that, also comprise:
Association setting unit, for presetting at least one associated configuration parameter for often kind of protocol definition configuration parameter;
Wherein, described parameter determination unit also obtains the described associated configuration parameter corresponding to described second configuration parameter, and substitutes described 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 stations according to claim 12, is characterized in that, described parameter applying unit comprises:
Signalling subelement, for sending reprovision signaling, to inform that described first kind communication equipment applies described first configuration parameter in next reprovision cycle to described first kind communication equipment.
16. base stations according to claim 15, is characterized in that, described signalling subelement is by reprovision signaling described in Physical Downlink Control Channel signaling, media access control signaling or radio resource control signalling.
17. base stations according to claim 16, is characterized in that, described parameter applying unit also comprises signaling and generates subelement, for:
When described reprovision signaling is Physical Downlink Control Channel signaling, in the control information of described Physical Downlink Control Channel signaling, increase by the first configuration instructions field, in described first configuration instructions field, comprise the information of described first configuration parameter;
When described reprovision signaling is media access control signaling, in described media access control signaling, increase control element, in described control element, comprise the information of described first configuration parameter;
When described reprovision signaling is radio resource control signaling, in described radio resource control signaling, increase by the second configuration instructions field or increase new radio resource control layer signaling, described second configures the information comprising described first configuration parameter in instructions field or described new radio resource control layer signaling.
18. base stations according to claim 12, is characterized in that, also comprise:
Walking direction unit, for obtaining the actual transmissions direction of each subframe of described Equations of The Second Kind communication equipment;
Behavior limiting unit, inconsistent for nominal transfer direction that the described actual transmissions direction in given sub-frame is corresponding with described second configuration parameter, limits the operating function described given sub-frame corresponding to described nominal transfer direction.
19. base stations according to claim 18, is characterized in that, when described operating function is 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 is down direction, described behavior limiting unit forbids 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, described behavior limiting unit forbids that described appointment descending sub frame calls the downlink data of described Equations of The Second Kind communication equipment;
Or when described operating function is measurement behavior, described behavior limiting unit limits described measurement behavior and comprises:
Ignoring actual transmissions direction is the measurement result that the descending sub frame of up direction is uploaded, and the merging treatment result of the last measurement result uploaded by the descending sub frame by actual transmissions direction being down direction or recently repetitive measurement result is as this measurement result; And/or
Limit the subframe place that described Equations of The Second Kind communication equipment is only 0,1,5,6 in sequence number and carry out down-run survey; And/or
It is the subframe that the descending sub frame of up direction is set to without the behavior of measurement by actual transmissions direction; And/or
Transmission is forbidden measuring signaling, to forbid the down-run survey at descending sub frame place that described Equations of The Second Kind communication equipment is up direction in actual transmissions direction;
Or when described operating function is transmission or the reception behavior features of signaling/channel, described behavior limiting unit limits the described transmission of 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
Limit the up transmission that subframe place that described Equations of The Second Kind communication equipment is only 2 in sequence number carries out specifying signaling/channel; And/or
Limit the downlink reception that subframe place that described Equations of The Second Kind communication equipment is only 0,1,5,6 in sequence number carries out specifying signaling/channel.
20., according to claim 12 to the base station according to any one of 19, is characterized in that, also comprise:
Information acquisition unit, for obtaining the characteristic information of described first kind communication equipment or described Equations of The Second Kind communication equipment;
Functional switch unit, for opening described eIMTA function when the value of described characteristic information is more than or equal to predetermined threshold value, otherwise closes described eIMTA function.
21. base stations 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, the quantity of the communication equipment of active state is in described first kind communication equipment or 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, ratio shared in the quantity of all communication equipments of described total quantity in specified scope, all in specified scope of the described quantity being in active state are in ratio shared in the quantity of the communication equipment of active state, ratio shared in all outgoing data amounts of described outgoing data amount in specified scope.
22., according to claim 12 to the base station according to any one of 19, is characterized in that, also comprise:
Message management unit, for when the configuration parameter that described second configuration parameter and described Equations of The Second Kind communication equipment were applied in the current reprovision cycle is different, forbids that described parameter applying unit notifies described second configuration parameter to described first kind communication equipment.
23. 1 kinds of systems, is characterized in that, comprise the first kind communication equipment supporting eIMTA function and/or the Equations of The Second Kind communication equipment not supporting eIMTA function, and the base station according to any one of claim 12 to 22.
24. 1 kinds of communication equipments, eIMTA function supported by described communication equipment, and it is characterized in that, described communication equipment comprises:
Data interaction unit, receives the first configuration parameter being used for configuring time division duplex ascending-descending subframes ratio;
Data processing unit, for applying described first configuration parameter in the first reprovision cycle;
Message ignores unit, for when described data interaction unit receives the second configuration parameter, ignores described second configuration parameter, to forbid described second configuration parameter of described data processing unit application;
Wherein, described second configuration parameter for configuring the time division duplex ascending-descending subframes ratio of the communication equipment not supporting eIMTA function, with by described do not support the communication equipment of eIMTA function second the reprovision cycle apply described second configuration parameter.
CN201310020962.9A 2013-01-18 2013-01-18 Double-period dynamic configuration method for ratio between TDD (Time Division Duplex) uplink subframes and TDD downlink subframes, base station, system and communication equipment Active CN103037524B (en)

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