CN106028452A - Method and device for configuring uplink and downlink sub-frames - Google Patents

Method and device for configuring uplink and downlink sub-frames Download PDF

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Publication number
CN106028452A
CN106028452A CN201610344104.3A CN201610344104A CN106028452A CN 106028452 A CN106028452 A CN 106028452A CN 201610344104 A CN201610344104 A CN 201610344104A CN 106028452 A CN106028452 A CN 106028452A
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ascending
descending subframes
descending
rule
bits proportion
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CN106028452B (en
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姜炜
邓伟
邓一伟
刘是枭
胡恒
李明菊
刘方圆
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/52—Allocation or scheduling criteria for wireless resources based on load
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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

Abstract

Embodiments of the invention disclose a method and a device for configuring uplink and downlink sub-frames based on TD-LTE (Time Division Long Term Evolution). The method comprises the following steps of obtaining a preset rule for configuring the uplink and downlink sub-frames; obtaining a bit ratio of the uplink and downlink sub-frames, wherein the bit ratio of the uplink and downlink sub-frames comprises a bit ratio of the uplink and downlink sub-frames at an Nth moment of a preset TTI (Transmission Time Interval); and configuring the uplink and downlink sub-frames according to the bit ratio of the uplink and downlink sub-frames and the rule. According to the method and the device, the flexible and dynamic adaptive configuration of the bit ratios of the TDD uplink and downlink sub-frames of different cells is realized on an unauthorized frequency band through the measurement and the feedback of the interference environment and the business type of TDD (Time Division Duplexing) base stations including an LAA (License Assisted Access), so that the purposes of improving utilization efficiency of the wireless communication resources, enhancing the TDD cell business optimization capability and improving the energy efficiency of the access network are realized.

Description

A kind of method and device configuring ascending-descending subframes
Technical field
The present embodiments relate to communication technical field, particularly relate to a kind of method configuring ascending-descending subframes And device.
Background technology
Along with the development of Internet technology, message volume meeting sharp increase, type of service also can be the most Become.In the environment of LAA microcellular, due to intra-cell users negligible amounts, and along with data The development of business, up-downgoing business has paroxysmal feature, is difficult to keep one between up-downgoing business Stable business proportion.In this case, the mode of existing static ascending-descending subframes configuration, it is impossible to Well adapt to the change that this business burst is brought, easily cause waste and the spectrum efficiency of resource Decline, and feature and the advantage of LAA base station can not be played well.Such as, if currently Sub-frame configuration, far more than upstream traffic, is fixed form according to traffic case by moment downlink traffic One, i.e. [DSUDDDSUDD], but may be greatly increased by upstream traffic at subsequent time, surpass far away Crossing downlink traffic, current sub-frame configuration cannot meet the requirement of transmission.In order to preferably solve industry The sudden problem of bringing of business, need a kind of minizone flexibly, ascending-descending subframes configuration mode adaptively.
Summary of the invention
The purpose of the embodiment of the present invention is to propose a kind of method and device configuring ascending-descending subframes, it is intended to The problem solving how to realize the flexible dynamic self-adapting configuration of different districts TDD ascending-descending subframes ratio.
For reaching this purpose, the embodiment of the present invention by the following technical solutions:
First aspect, a kind of method configuring ascending-descending subframes, described method includes:
Obtaining the rule of the configuration ascending-descending subframes pre-set, described rule includes according to ascending-descending subframes Between bits proportion and fixing reduced parameter, the relation of size arranges the rule of ascending-descending subframes, or, bag Include the rule that ascending-descending subframes is set according to described ascending-descending subframes bits proportion；
Obtaining described ascending-descending subframes bits proportion, described ascending-descending subframes bits proportion includes presetting TTI The ascending-descending subframes bits proportion of n-hour；
According to described ascending-descending subframes bits proportion and described rule configuration ascending-descending subframes.
Preferably, described acquisition described ascending-descending subframes bits proportion, including:
Obtain up total bit number in the upper row cache of the n-hour presetting TTI；；
Obtain descending total bit number in the down buffer storage of the n-hour presetting TTI；
When obtaining the N of described default TTI according to described up total bit number and described descending total bit number The ascending-descending subframes bits proportion carved.
Preferably, described according to described ascending-descending subframes bits proportion and described rule configuration up-downgoing son Frame, including:
It is according to the pass of size between ascending-descending subframes bits proportion and fixing reduced parameter in described rule In the case of system arranges the rule of ascending-descending subframes, contrast the up-downgoing of the n-hour of described default TTI Subframe bits proportion and fixing reduced parameter；
If the ascending-descending subframes bits proportion of described predetermined time is more than described fixing reduced parameter, then by the The subframe in N+K moment is set to sub-frame of uplink；
If the ascending-descending subframes bits proportion of described predetermined time is less than described fixing reduced parameter, then by the The subframe in N+K moment is set to descending sub frame.
Preferably, described fixing reduced parameter is the ratio of the lamda value of up-downgoing Poisson process, described The ratio of lamda value is lamda_ul/lamda_dl, and described lamda_ul is in up Poisson process Lamda value, described lamda_dl is the lamda value in descending Poisson process.
Preferably, described acquisition described ascending-descending subframes bits proportion, including:
Whether the n-hour determining default TTI was the first moment；
The subframe the most then initializing for the first moment is sub-frame of uplink or descending sub frame；
If not, it is determined that whether the n-hour of described default TTI is L*j+2, j is natural number, L Heavily join the cycle for subframe；
If it is not, then continue to return the step whether n-hour performing to determine described default TTI is L*j+2 Suddenly；
The most then obtain the ascending-descending subframes bits proportion in described L*j+2 moment.
Preferably, described according to described ascending-descending subframes bits proportion and described rule configuration up-downgoing son Frame, including:
According to described rule, described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes, then Ascending-descending subframes bits proportion according to the described L*j+2 moment configures the L*j+2+K moment extremely The ascending-descending subframes bits proportion in L*j+t+2+K-1 moment, t is the number of weight gamete frame of each cycle.
Preferably, described according to described ascending-descending subframes bits proportion and described rule configuration up-downgoing son Frame, including:
According to described rule, described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes, will Sub-frame of uplink and the descending sub frame in L*j+2+K moment to L*j+t+2+K-1 moment configure continuously, t Number for weight gamete frame of each cycle.
Second aspect, a kind of device configuring ascending-descending subframes, described device includes:
First acquisition module, for obtaining the rule of the configuration ascending-descending subframes pre-set, described rule Including according to the relation of size between ascending-descending subframes bits proportion and fixing reduced parameter, up-downgoing is set The rule of subframe, or, including the rule arranging ascending-descending subframes according to described ascending-descending subframes bits proportion Then；
Second acquisition module, is used for obtaining described ascending-descending subframes bits proportion, described ascending-descending subframes ratio Special ratio includes the ascending-descending subframes bits proportion presetting the n-hour of TTI；
Configuration module, for according to described ascending-descending subframes bits proportion and described rule configuration up-downgoing Frame.
Preferably, described second acquisition module, it is used for:
Obtain up total bit number in the upper row cache of the n-hour presetting TTI；；
Obtain descending total bit number in the down buffer storage of the n-hour presetting TTI；
When obtaining the N of described default TTI according to described up total bit number and described descending total bit number The ascending-descending subframes bits proportion carved.
Preferably, described configuration module, it is used for:
It is according to the pass of size between ascending-descending subframes bits proportion and fixing reduced parameter in described rule In the case of system arranges the rule of ascending-descending subframes, contrast the up-downgoing of the n-hour of described default TTI Subframe bits proportion and fixing reduced parameter；
If the ascending-descending subframes bits proportion of described predetermined time is more than described fixing reduced parameter, then by the The subframe in N+K moment is set to sub-frame of uplink；
If the ascending-descending subframes bits proportion of described predetermined time is less than described fixing reduced parameter, then by the The subframe in N+K moment is set to descending sub frame.
Preferably, described fixing reduced parameter is the ratio of the lamda value of up-downgoing Poisson process, described The ratio of lamda value is lamda_ul/lamda_dl, and described lamda_ul is in up Poisson process Lamda value, described lamda_dl is the lamda value in descending Poisson process.
Preferably, described second acquisition module, it is used for:
Whether the n-hour determining default TTI was the first moment；
The subframe the most then initializing for the first moment is sub-frame of uplink or descending sub frame；
If not, it is determined that whether the n-hour of described default TTI is L*j+2, j is natural number, L Heavily join the cycle for subframe；
If it is not, then continue to return the step whether n-hour performing to determine described default TTI is L*j+2 Suddenly；
The most then obtain the ascending-descending subframes bits proportion in described L*j+2 moment.
Preferably, described configuration module, it is used for:
According to described rule, described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes, then Ascending-descending subframes bits proportion according to the described L*j+2 moment configures the L*j+2+K moment extremely The ascending-descending subframes bits proportion in L*j+t+2+K-1 moment, t is the number of weight gamete frame of each cycle.
Preferably, described configuration module, it is used for:
According to described rule, described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes, will Sub-frame of uplink and the descending sub frame in L*j+2+K moment to L*j+t+2+K-1 moment configure continuously, t Number for weight gamete frame of each cycle.
The embodiment of the present invention provides a kind of method and device based on TD-LTE configuration ascending-descending subframes, obtains Taking the rule of the configuration ascending-descending subframes pre-set, described rule includes according to ascending-descending subframes bit ratio Between example and fixing reduced parameter, the relation of size arranges the rule of ascending-descending subframes, or, including basis Described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes；Obtain described ascending-descending subframes bit Ratio, described ascending-descending subframes bits proportion includes the ascending-descending subframes bit presetting the n-hour of TTI Ratio；According to described ascending-descending subframes bits proportion and described rule configuration ascending-descending subframes, thus pass through TDD time division multiplex base station is included, and the measurement of the interference environments such as LAA base station and type of service is with anti- Feedback, realizes the flexible, the most adaptive of different districts TDD ascending-descending subframes ratio in unauthorized frequency range Should configure, thus reach to improve wireless communication resources service efficiency, enhance TDD cell service optimization Ability, and improve the purpose of the efficiency of access network.
Accompanying drawing explanation
Fig. 1 is that a kind of method first based on TD-LTE configuration ascending-descending subframes of the embodiment of the present invention is implemented The schematic flow sheet of example；
Fig. 2 is that a kind of method second based on TD-LTE configuration ascending-descending subframes of the embodiment of the present invention is implemented The schematic flow sheet of example；
Fig. 3 is a kind of method the 3rd enforcement based on TD-LTE configuration ascending-descending subframes of the embodiment of the present invention The schematic flow sheet of example；
Fig. 4 is a kind of method the 4th enforcement based on TD-LTE configuration ascending-descending subframes of the embodiment of the present invention The schematic flow sheet of example；
Fig. 5 is a kind of method the 5th enforcement based on TD-LTE configuration ascending-descending subframes of the embodiment of the present invention The schematic flow sheet of example；
Fig. 6 is the high-level schematic functional block diagram of the device of embodiment of the present invention configuration ascending-descending subframes.
Detailed description of the invention
With embodiment, the embodiment of the present invention is described in further detail below in conjunction with the accompanying drawings.It is appreciated that , specific embodiment described herein is used only for explaining the embodiment of the present invention, rather than to the present invention The restriction of embodiment.It also should be noted that, for the ease of describing, accompanying drawing illustrate only and this Part that inventive embodiments is relevant rather than entire infrastructure.
Embodiment one
It is a kind of method based on TD-LTE configuration ascending-descending subframes of the embodiment of the present invention with reference to Fig. 1, Fig. 1 The schematic flow sheet of first embodiment.
In embodiment one, described method based on TD-LTE configuration ascending-descending subframes includes:
Step 101, obtains the rule of the configuration ascending-descending subframes pre-set, and described rule includes basis Between ascending-descending subframes bits proportion and fixing reduced parameter, the relation of size arranges the rule of ascending-descending subframes Then, or, including the rule arranging ascending-descending subframes according to described ascending-descending subframes bits proportion；
Concrete, by the n-hour of default TTI upper row cache bit number scheduler_buffer_ul Compare with preset parameter with the ratio of down buffer storage bit number scheduler_buffer_dl, determine The TTI subframe situation in N+4 moment.
It addition, because each TTI can carry out the son that subframe dynamically configures and the most only configures a TTI Frame, can cause continuous U subframe or the configuring condition of continuous D subframe of a very long time.Therefore, In improvement project, statistics presets the n-hour upper row cache bit number scheduler_buffer_ul of TTI With the ratio of down buffer storage bit number scheduler_buffer_dl, by the proportional arrangement of n-hour with 10 Individual TTI is period assignment subframe and ascending-descending subframes ratio, it is possible to reduce even U/ connects the situation of D.
Step 102, obtains described ascending-descending subframes bits proportion, described ascending-descending subframes bits proportion bag Include the ascending-descending subframes bits proportion of the n-hour of default TTI；
Concrete, ascending-descending subframes bits proportion is: upper row cache bit number/down buffer storage bit number.
Step 103, according to described ascending-descending subframes bits proportion and described rule configuration ascending-descending subframes.
Concrete, the TTI subframe bits proportion in N+4 moment is configured to the TTI subframe of n-hour Bits proportion；Or, when these 10 TTI subframe bits proportion of N+4 to N+13 are configured to N The TTI subframe bits proportion carved.
The embodiment of the present invention provides a kind of method based on TD-LTE configuration ascending-descending subframes, obtains in advance The rule of the configuration ascending-descending subframes arranged, described rule includes according to ascending-descending subframes bits proportion with solid Determine the relation of size between reduced parameter and the rule of ascending-descending subframes is set, or, including according on described Descending sub frame bits proportion arranges the rule of ascending-descending subframes；Obtain described ascending-descending subframes bits proportion, Described ascending-descending subframes bits proportion includes the ascending-descending subframes bits proportion presetting the n-hour of TTI； According to described ascending-descending subframes bits proportion and described rule configuration ascending-descending subframes, thus by TDD Time division multiplex base station includes the interference environments such as LAA base station and the measurement of type of service and feedback, non- Authorize flexible, the dynamic self-adapting configuration realizing different districts TDD ascending-descending subframes ratio in frequency range, Thus reach to improve wireless communication resources service efficiency, enhance TDD cell service optimization ability, and Improve the purpose of the efficiency of access network.
Embodiment two
It is a kind of method based on TD-LTE configuration ascending-descending subframes of the embodiment of the present invention with reference to Fig. 2, Fig. 2 The schematic flow sheet of the second embodiment.
In embodiment two, described method based on TD-LTE configuration ascending-descending subframes includes:
Step 201, obtains the rule of the configuration ascending-descending subframes pre-set, and described rule includes basis Between ascending-descending subframes bits proportion and fixing reduced parameter, the relation of size arranges the rule of ascending-descending subframes Then；
Concrete, by the n-hour of default TTI upper row cache bit number scheduler_buffer_ul and The ratio of down buffer storage bit number scheduler_buffer_dl compares with preset parameter, determines N+4 The TTI subframe situation in individual moment.
Step 202, obtains described ascending-descending subframes bits proportion, described ascending-descending subframes bits proportion bag Include the ascending-descending subframes bits proportion of the n-hour of default TTI；
Preferably, described acquisition described ascending-descending subframes bits proportion, including:
Obtain up total bit number in the upper row cache of the n-hour presetting TTI；
Obtain descending total bit number in the down buffer storage of the n-hour presetting TTI；
When obtaining the N of described default TTI according to described up total bit number and described descending total bit number The ascending-descending subframes bits proportion carved.
Concrete, ascending-descending subframes bits proportion is: upper row cache bit number/down buffer storage bit number.
Step 203, according to described ascending-descending subframes bits proportion and described rule configuration ascending-descending subframes.
Preferably, described according to described ascending-descending subframes bits proportion and described rule configuration up-downgoing son Frame, including:
It is according to the pass of size between ascending-descending subframes bits proportion and fixing reduced parameter in described rule In the case of system arranges the rule of ascending-descending subframes, contrast the up-downgoing of the n-hour of described default TTI Subframe bits proportion and fixing reduced parameter；
If the ascending-descending subframes bits proportion of described predetermined time is more than described fixing reduced parameter, then by the The subframe in N+K moment is set to sub-frame of uplink；
If the ascending-descending subframes bits proportion of described predetermined time is less than described fixing reduced parameter, then by the The subframe in N+K moment is set to descending sub frame.
Wherein, described fixing reduced parameter is the ratio of the lamda value of up-downgoing Poisson process, described The ratio of lamda value is lamda_ul/lamda_dl, and described lamda_ul is in up Poisson process Lamda value, described lamda_dl is the lamda value in descending Poisson process.
Concrete, in the TTI=1 moment, the ascending-descending subframes under LAA base station is all initialized as DL Frame.Afterwards at the initial time of each TII, according to current TTI up-downgoing total bit number to be passed to up and down Row subframe reconfigures.
From the TTI=2 moment, under the initial time at each TTI adds up each LAA base station respectively afterwards UE on row cache bit number to be passed and down buffer storage bit number to be passed, by total bit number to be passed for up-downgoing Compare and obtain a ratio UL/DL, then this ratio UL/DL and reduced parameter m are carried out Relatively.If ratio UL/DL >=reduced parameter m, then the subframe in the N+4 TTI moment is set to UL (N represents current TTI)；If this ratio UL/DL < reduced parameter m, then N+4TTI subframe is protected Hold constant, be still DL.For the value of this reduced parameter m size, up-downgoing Poisson can be taken as The ratio of the lamda value of process, i.e. lamda_ul/lamda_dl.
The embodiment of the present invention provides a kind of method based on TD-LTE configuration ascending-descending subframes, obtains in advance The rule of the configuration ascending-descending subframes arranged, described rule includes according to ascending-descending subframes bits proportion with solid Determine the relation of size between reduced parameter and the rule of ascending-descending subframes is set；Obtain described ascending-descending subframes ratio Special ratio, described ascending-descending subframes bits proportion includes the ascending-descending subframes ratio presetting the n-hour of TTI Special ratio；According to described ascending-descending subframes bits proportion and described rule configuration ascending-descending subframes, thus logical Cross the measurement that TDD time division multiplex base station is included the interference environments such as LAA base station and type of service with anti- Feedback, realizes the flexible, the most adaptive of different districts TDD ascending-descending subframes ratio in unauthorized frequency range Should configure, thus reach to improve wireless communication resources service efficiency, enhance TDD cell service optimization Ability, and improve the purpose of the efficiency of access network.
Embodiment three
It is a kind of side based on TD-LTE configuration ascending-descending subframes of the embodiment of the present invention with reference to Fig. 3, Fig. 3 The schematic flow sheet of method the 3rd embodiment.
In embodiment three, described method based on TD-LTE configuration ascending-descending subframes includes:
Step 301, obtains the rule of the configuration ascending-descending subframes pre-set, and described rule includes basis Described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes；
Concrete, statistics presets the bit number total to be passed in the n-hour upper row cache of TTI The ratio of the bit number scheduler_buffer_dl total to be passed in scheduler_buffer_ul and down buffer storage Example, according to the up-downgoing bits proportion of n-hour with 10 TTI for period assignment subframe, can subtract Connect the situation that U/ connects D less.
Step 302, obtains described ascending-descending subframes bits proportion, described ascending-descending subframes bits proportion bag Include the ascending-descending subframes bits proportion of the n-hour of default TTI；
Preferably, described acquisition described ascending-descending subframes bits proportion, including:
Whether the n-hour determining default TTI was the first moment；
The subframe the most then initializing for the first moment is sub-frame of uplink or descending sub frame；
If not, it is determined that whether the n-hour of described default TTI is L*j+2, j is natural number, L Heavily join the cycle for subframe；
If it is not, then continue to return the step whether n-hour performing to determine described default TTI is L*j+2 Suddenly；
The most then obtain the ascending-descending subframes bits proportion in described L*j+2 moment.
Step 303, according to described ascending-descending subframes bits proportion and described rule configuration ascending-descending subframes.
Preferably, described according to described ascending-descending subframes bits proportion and described rule configuration up-downgoing son Frame, including:
According to described rule, described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes, then Ascending-descending subframes bits proportion according to the described L*j+2 moment configures the L*j+2+K moment extremely The ascending-descending subframes bits proportion in L*j+t+2+K-1 moment, t is the number of weight gamete frame of each cycle.
Wherein, t can be 10.
Preferably, described according to described ascending-descending subframes bits proportion and described rule configuration up-downgoing son Frame, including:
According to described rule, described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes, will Sub-frame of uplink and the descending sub frame in L*j+2+K moment to L*j+t+2+K-1 moment configure continuously, t Number for weight gamete frame of each cycle.
Concrete, first in the TTI=1 moment, the ascending-descending subframes under LAA base station is all set to DL Frame.Afterwards every 10 TII times according to LAA base station subordinate's UE up-downgoing total bit number to be passed The subframe of ten TTI after N+4 is reconfigured by ratio in this ratio.
From the TTI=2 moment, add up affiliated under each LAA base station respectively every 10 TTI moment afterwards UE ascending-descending subframes bits proportion: upper row cache bit number/down buffer storage bit number, according to up-downgoing Frame bits proportion configures the situation of ten subframes after the N+4 TTI.According to ascending-descending subframes Bits proportion and dynamic subframe allocation window size, dynamic subframe allocation window a length of 10 here TTI, therefore devise 11 kinds of dynamic subframe allocation window configuring conditions altogether, it is respectively [DDDDDDDDDD][DDDDDDDDDU][DDDDDDDDUU][DDDDDDDUUU] [DDDDDDUUUU][DDDDDUUUUU][DDDDUUUUUU][DDDUUUUUUU] [DDUUUUUUUU][DUUUUUUUUU][UUUUUUUUUU].Such as: current TTI=2 Time ratio UL/DL be 2/3, then be [DDDDDDUUUU] by the sub-frame configuration of the 6 to 15th, Afterwards in the 12TTI moment according to current up-downgoing total bit number ratio the 16 to 25th TTI of configuration The subframe in moment, the like.
A kind of based on TD-LTE configuration ascending-descending subframes the method that the embodiment of the present invention provides, obtains pre- The rule of the configuration ascending-descending subframes first arranged, described rule includes according to described ascending-descending subframes bit ratio Example arranges the rule of ascending-descending subframes, obtains described ascending-descending subframes bits proportion, described ascending-descending subframes Bits proportion includes the ascending-descending subframes bits proportion presetting the n-hour of TTI, according to described up-downgoing Subframe bits proportion and described rule configuration ascending-descending subframes, by the proportional arrangement of n-hour with 10 TTI is period assignment subframe and ascending-descending subframes ratio, it is possible to reduce even U/ connects the situation of D.
Embodiment four
It is a kind of side based on TD-LTE configuration ascending-descending subframes of the embodiment of the present invention with reference to Fig. 4, Fig. 4 The schematic flow sheet of method the 4th embodiment.
In embodiment four, described method based on TD-LTE configuration ascending-descending subframes includes:
Step 401, it may be judged whether be first TTI；
Step 402, the most then be both configured to DL by each TTI subframe；
Step 403, if it is not, then TTI=TTI+1；
Step 404, calculate the current TTI moment cache bit number, caching bit number the total bit of up-downgoing Number ratio M；
Step 405, it is judged that M is more than or equal to reduced parameter m；
Step 406, the most then be set to UL by the subframe of N+4 TTI；
Step 407, if it is not, be then set to DL by the subframe of N+4 TTI.
Step 408, is stored in variable total_TDD_pattern, returns and performs step 403.
Embodiment five
It is a kind of side based on TD-LTE configuration ascending-descending subframes of the embodiment of the present invention with reference to Fig. 5, Fig. 5 The schematic flow sheet of method the 5th embodiment.
In embodiment five, described method based on TD-LTE configuration ascending-descending subframes includes:
Step 501, it may be judged whether be first TTI；
Step 502, the most then be both configured to DL by each TTI subframe；
Step 503, if it is not, then judge TTI=10n+2 (n is positive integer)；
Step 504, if it is not, then by TTI=TTI+1 and return execution step 503；
Step 505, the most then calculate current TTI moment transmitted bit number, cache the upper and lower of bit number Total bit number ratio M of row；
Step 506, according to the sub-frame configuration of ratio M configuration these 10 TTI of TTI+4 to TTI+13；
Step 507, by subframe and the initialization of these 10 TTI of TTI+4 to TTI+13 after configuration TTI be stored in variable total_TDD_pattern and return execution step 504.
Embodiment six
It it is the functional module signal of the device of embodiment of the present invention configuration ascending-descending subframes with reference to Fig. 6, Fig. 6 Figure.
In embodiment six, the device of described configuration ascending-descending subframes includes:
First acquisition module 601, for obtaining the rule of the configuration ascending-descending subframes pre-set, described Rule includes arranging according to the relation of size between ascending-descending subframes bits proportion and fixing reduced parameter The rule of descending sub frame, or, including according to described ascending-descending subframes bits proportion, ascending-descending subframes is set Rule；
Second acquisition module 602, is used for obtaining described ascending-descending subframes bits proportion, described up-downgoing Frame bits proportion includes the ascending-descending subframes bits proportion presetting the n-hour of TTI；
Preferably, described second acquisition module 602, it is used for:
Obtain up total bit number in the upper row cache of the n-hour presetting TTI；；
Obtain descending total bit number in the down buffer storage of the n-hour presetting TTI；
When obtaining the N of described default TTI according to described up total bit number and described descending total bit number The ascending-descending subframes bits proportion carved.
Preferably, described second acquisition module 602, it is used for:
Whether the n-hour determining default TTI was the first moment；
The subframe the most then initializing for the first moment is sub-frame of uplink or descending sub frame；
If not, it is determined that whether the n-hour of described default TTI is L*j+2, j is natural number, L Heavily join the cycle for subframe；
If it is not, then continue to return the step whether n-hour performing to determine described default TTI is L*j+2 Suddenly；
The most then obtain the ascending-descending subframes bits proportion in described L*j+2 moment.
Configuration module 603, for upper and lower according to described ascending-descending subframes bits proportion and described rule configuration Row subframe.
Preferably, described configuration module 603, it is used for:
It is according to the pass of size between ascending-descending subframes bits proportion and fixing reduced parameter in described rule In the case of system arranges the rule of ascending-descending subframes, contrast the up-downgoing of the n-hour of described default TTI Subframe bits proportion and fixing reduced parameter；
If the ascending-descending subframes bits proportion of described predetermined time is more than described fixing reduced parameter, then by the The subframe in N+K moment is set to sub-frame of uplink；
If the ascending-descending subframes bits proportion of described predetermined time is less than described fixing reduced parameter, then by the The subframe in N+K moment is set to descending sub frame.
Wherein, described fixing reduced parameter is the ratio of the lamda value of up-downgoing Poisson process, described The ratio of lamda value is lamda_ul/lamda_dl, and described lamda_ul is in up Poisson process Lamda value, described lamda_dl is the lamda value in descending Poisson process.
Preferably, described configuration module 603, it is used for:
According to described rule, described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes, then Ascending-descending subframes bits proportion according to the described L*j+2 moment configures the L*j+2+K moment extremely The ascending-descending subframes bits proportion in L*j+t+2+K-1 moment, t is the number of weight gamete frame of each cycle.
Preferably, described configuration module 603, it is used for:
According to described rule, described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes, will Sub-frame of uplink and the descending sub frame in L*j+2+K moment to L*j+t+2+K-1 moment configure continuously, t Number for weight gamete frame of each cycle.
The embodiment of the present invention provides a kind of device based on TD-LTE configuration ascending-descending subframes, obtains in advance The rule of the configuration ascending-descending subframes arranged, described rule includes according to ascending-descending subframes bits proportion with solid Determine the relation of size between reduced parameter and the rule of ascending-descending subframes is set, or, including according on described Descending sub frame bits proportion arranges the rule of ascending-descending subframes；Obtain described ascending-descending subframes bits proportion, Described ascending-descending subframes bits proportion includes the ascending-descending subframes bits proportion presetting the n-hour of TTI； According to described ascending-descending subframes bits proportion and described rule configuration ascending-descending subframes, thus by TDD Time division multiplex base station includes the interference environments such as LAA base station and the measurement of type of service and feedback, non- Authorize flexible, the dynamic self-adapting configuration realizing different districts TDD ascending-descending subframes ratio in frequency range, Thus reach to improve wireless communication resources service efficiency, enhance TDD cell service optimization ability, and Improve the purpose of the efficiency of access network.
The know-why of the embodiment of the present invention is described above in association with specific embodiment.These descriptions are simply Explain the principle of the embodiment of the present invention, and can not be construed to by any way the embodiment of the present invention is protected The restriction of scope.Based on explanation herein, those skilled in the art need not pay performing creative labour Can associate other detailed description of the invention of the embodiment of the present invention, it is real that these modes fall within the present invention Within executing the protection domain of example.

Claims (14)

1. a method based on TD-LTE configuration ascending-descending subframes, it is characterised in that described method Including:
Obtaining the rule of the configuration ascending-descending subframes pre-set, described rule includes according to ascending-descending subframes Between bits proportion and fixing reduced parameter, the relation of size arranges the rule of ascending-descending subframes, or, bag Include the rule that ascending-descending subframes is set according to described ascending-descending subframes bits proportion；
Obtaining described ascending-descending subframes bits proportion, described ascending-descending subframes bits proportion includes presetting TTI The ascending-descending subframes bits proportion of n-hour；
According to described ascending-descending subframes bits proportion and described rule configuration ascending-descending subframes.
Method the most according to claim 1, it is characterised in that described acquisition described up-downgoing Frame bits proportion, including:
Obtain up total bit number in the upper row cache of the n-hour presetting TTI；；
Obtain descending total bit number in the down buffer storage of the n-hour presetting TTI；
When obtaining the N of described default TTI according to described up total bit number and described descending total bit number The ascending-descending subframes bits proportion carved.
Method the most according to claim 2, it is characterised in that described according to described up-downgoing Frame bits proportion and described rule configuration ascending-descending subframes, including:
It is according to the pass of size between ascending-descending subframes bits proportion and fixing reduced parameter in described rule In the case of system arranges the rule of ascending-descending subframes, contrast the up-downgoing of the n-hour of described default TTI Subframe bits proportion and fixing reduced parameter；
If the ascending-descending subframes bits proportion of described predetermined time is more than described fixing reduced parameter, then by the The subframe in N+K moment is set to sub-frame of uplink；
If the ascending-descending subframes bits proportion of described predetermined time is less than described fixing reduced parameter, then by the The subframe in N+K moment is set to descending sub frame.
4. according to the method described in claims 1 to 3, it is characterised in that described fixing reduced parameter For the ratio of the lamda value of up-downgoing Poisson process, the ratio of described lamda value is Lamda_ul/lamda_dl, described lamda_ul are the lamda value in up Poisson process, described Lamda_dl is the lamda value in descending Poisson process.
Method the most according to claim 1, it is characterised in that described acquisition described up-downgoing Frame bits proportion, including:
Whether the n-hour determining default TTI was the first moment；
The subframe the most then initializing for the first moment is sub-frame of uplink or descending sub frame；
If not, it is determined that whether the n-hour of described default TTI is L*j+2, j is natural number, L Heavily join the cycle for subframe；
If it is not, then continue to return the step whether n-hour performing to determine described default TTI is L*j+2 Suddenly；
The most then obtain the ascending-descending subframes bits proportion in described L*j+2 moment.
Method the most according to claim 5, it is characterised in that described according to described up-downgoing Frame bits proportion and described rule configuration ascending-descending subframes, including:
According to described rule, described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes, then Ascending-descending subframes bits proportion according to the described L*j+2 moment configures the L*j+2+K moment extremely The ascending-descending subframes bits proportion in L*j+t+2+K-1 moment, t is the number of weight gamete frame of each cycle.
Method the most according to claim 5, it is characterised in that described according to described up-downgoing Frame bits proportion and described rule configuration ascending-descending subframes, including:
According to described rule, described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes, will Sub-frame of uplink and the descending sub frame in L*j+2+K moment to L*j+t+2+K-1 moment configure continuously, t Number for weight gamete frame of each cycle.
8. the device configuring ascending-descending subframes, it is characterised in that described device includes:
First acquisition module, for obtaining the rule of the configuration ascending-descending subframes pre-set, described rule Including according to the relation of size between ascending-descending subframes bits proportion and fixing reduced parameter, up-downgoing is set The rule of subframe, or, including the rule arranging ascending-descending subframes according to described ascending-descending subframes bits proportion Then；
Second acquisition module, is used for obtaining described ascending-descending subframes bits proportion, described ascending-descending subframes ratio Special ratio includes the ascending-descending subframes bits proportion presetting the n-hour of TTI；
Configuration module, for according to described ascending-descending subframes bits proportion and described rule configuration up-downgoing Frame.
Device the most according to claim 8, it is characterised in that described second acquisition module, uses In:
Obtain up total bit number in the upper row cache of the n-hour presetting TTI；；
Obtain descending total bit number in the down buffer storage of the n-hour presetting TTI；
When obtaining the N of described default TTI according to described up total bit number and described descending total bit number The ascending-descending subframes bits proportion carved.
Device the most according to claim 9, it is characterised in that described configuration module, is used for:
It is according to the pass of size between ascending-descending subframes bits proportion and fixing reduced parameter in described rule In the case of system arranges the rule of ascending-descending subframes, contrast the up-downgoing of the n-hour of described default TTI Subframe bits proportion and fixing reduced parameter；
If the ascending-descending subframes bits proportion of described predetermined time is more than described fixing reduced parameter, then by the The subframe in N+K moment is set to sub-frame of uplink；
If the ascending-descending subframes bits proportion of described predetermined time is less than described fixing reduced parameter, then by the The subframe in N+K moment is set to descending sub frame.
11. according to Claim 8 to the device described in 10, it is characterised in that described fixing contrast ginseng Number is the ratio of the lamda value of up-downgoing Poisson process, and the ratio of described lamda value is Lamda_ul/lamda_dl, described lamda_ul are the lamda value in up Poisson process, described Lamda_dl is the lamda value in descending Poisson process.
12. devices according to claim 8, it is characterised in that described second acquisition module, use In:
Whether the n-hour determining default TTI was the first moment；
The subframe the most then initializing for the first moment is sub-frame of uplink or descending sub frame；
If not, it is determined that whether the n-hour of described default TTI is L*j+2, j is natural number, L Heavily join the cycle for subframe；
If it is not, then continue to return the step whether n-hour performing to determine described default TTI is L*j+2 Suddenly；
The most then obtain the ascending-descending subframes bits proportion in described L*j+2 moment.
13. devices according to claim 12, it is characterised in that described configuration module, are used for:
According to described rule, described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes, then Ascending-descending subframes bits proportion according to the described L*j+2 moment configures the L*j+2+K moment extremely The ascending-descending subframes bits proportion in L*j+t+2+K-1 moment, t is the number of weight gamete frame of each cycle.
14. devices according to claim 12, it is characterised in that described configuration module, are used for:
According to described rule, described ascending-descending subframes bits proportion arranges the rule of ascending-descending subframes, will Sub-frame of uplink and the descending sub frame in L*j+2+K moment to L*j+t+2+K-1 moment configure continuously, t Number for weight gamete frame of each cycle.
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