CN102300213B - The method and device of spectral coordination is realized between TDD system and FDD system - Google Patents
The method and device of spectral coordination is realized between TDD system and FDD system Download PDFInfo
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- CN102300213B CN102300213B CN201010220679.7A CN201010220679A CN102300213B CN 102300213 B CN102300213 B CN 102300213B CN 201010220679 A CN201010220679 A CN 201010220679A CN 102300213 B CN102300213 B CN 102300213B
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Abstract
The invention discloses the method and device realizing spectral coordination between a kind of TDD system and FDD system, including the resource allocation result according to time division multiplex (TDD) system obtained and frequency division multiplexing (FDD) system and user profile to be dispatched, the bandwidth of the statistics up needs of TDD system and the up available bandwidth of FDD system；According to statistical result, it is achieved TDD system takies FDD system ascending resource and carries out uplink.Pass through the inventive method, upstream bandwidth in FDD system has residue, and during the upstream bandwidth deficiency of TDD system, TDD system can take the upstream band of FDD system and carry out uplink, achieve the flexible allocation of frequency spectrum between TDD system and FDD system, provide the availability of frequency spectrum, and then improve throughput of system.
Description
Technical field
The present invention relates to frequency spectrum resource and utilize technology, between espespecially a kind of (TDD, TimeDivisionDuplexing) system with (FDD, FrequencyDivisionDuplexing) system, realize the method and device of spectral coordination.
Background technology
Frequency spectrum resource is the basic medium of communication, and frequency spectrum is limited so that it is desirable to improve to greatest extent the availability of frequency spectrum.
The development of different radio access technologies is also for improving the availability of frequency spectrum.But; frequency spectrum between each wireless access technology of existing communication network and load switching there's almost no; i.e. different radio access technologies is each other almost without cooperative operation; so; frequency spectrum is made to use solidification relatively, dumb, reduce frequency spectrum utilization rate; would generally occur: the frequency spectrum load of the wireless access technology having is relatively light, and the frequency spectrum heavier loads of another wireless access technology.In order to solve this problem, study wireless aware technology, realized the dynamic adjustment of network, the adjustment of running parameter such as including a regional wireless access technology and frequency band by cognitive radio.
The final goal of cognitive radio is: require that different wireless access technologys can access and communicate over different frequency bands.This requirement is the highest to the requirement of base station and terminal, it could even be possible in existing network infrastructure, increase new network element, it is achieved getting up can be more complicated.At present, cognitive radio power technology, also in conceptual phase, does not provide attainable technical scheme.
Summary of the invention
In view of this, present invention is primarily targeted at the method and device realizing spectral coordination between a kind of TDD system and FDD system is provided, it is possible to realize the flexible allocation of frequency spectrum, provide the availability of frequency spectrum, and then promote throughput of system.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of method realizing spectral coordination between TDD system and FDD system, including:
Obtain time division multiplex TDD system and the resource allocation result of frequency division multiplexing FDD system and user profile to be dispatched；
The bandwidth of the statistics up needs of TDD system and the up available bandwidth of FDD system；
According to statistical result, it is achieved TDD system takies FDD system ascending resource and carries out uplink.
Described statistical result is: the up available bandwidth of described FDD system has residue, and the bandwidth of the up needs of TDD system is not enough.
Described TDD system takies FDD system ascending resource and carries out uplink and is: the user of described TDD system standard with FDD in FDD system sends, and takies the uplink spectrum of FDD system in the sub-frame of uplink moment of TDD system.
The user of described TDD system transmits identical data at the ascending resource of TDD system with the ascending resource of FDD system.
Described identical data have multi-form.
The user of described TDD system transmits different data at the ascending resource of TDD system with the ascending resource of FDD system.
The method also includes: the user of described TDD system and the user of FDD system as resource on carry out uplink multi-users MIMO pairing.
Described TDD system and FDD system colocation site.
Realize the device of spectral coordination between a kind of TDD system and FDD system, mainly include TDD system, FDD system and statistic unit, wherein,
TDD system, for obtaining the resource allocation result of self and user profile to be dispatched, and reports statistic unit；
FDD system, for obtaining the resource allocation result of self and user profile to be dispatched, and reports statistic unit；Reception TDD system takies FDD system ascending resource and carries out the scheduling result of uplink, knows the occupied situation of self upstream band；
Statistic unit, for adding up bandwidth and the up available bandwidth of FDD system of the up needs of TDD system, and analytic statistics result, determine whether TDD system can take the ascending resource of FDD system, and situation about taking, and be sent to TDD system and FDD system.
Described TDD system and FDD system colocation site.
The technical scheme provided from the invention described above is it can be seen that according to the resource allocation result of the TDD system obtained and FDD system and user profile dispatch, add up bandwidth and the up available bandwidth of FDD system of the up needs of TDD system；According to statistical result, it is achieved TDD system takies FDD system ascending resource and carries out uplink.Pass through the inventive method, upstream bandwidth in FDD system has residue, and during the upstream bandwidth deficiency of TDD system, TDD system can take the upstream band of FDD system and carry out uplink, achieve the flexible allocation of frequency spectrum between TDD system and FDD system, provide the availability of frequency spectrum, and then improve throughput of system.
Accompanying drawing explanation
Fig. 1 is the flow chart of the method realizing spectral coordination between TDD system of the present invention and FDD system；
Fig. 2 is the schematic diagram that TDD system of the present invention uses the moment of FDD ascending resource；
Fig. 3 is the composition schematic diagram of the device realizing spectral coordination between TDD system of the present invention and FDD system；
Fig. 4 is the schematic flow sheet of first embodiment of the invention；
Fig. 5 is the schematic flow sheet of second embodiment of the invention.
Detailed description of the invention
Fig. 1 is the flow chart of the method realizing spectral coordination between TDD system of the present invention and FDD system, as it is shown in figure 1, comprise the following steps:
Step 100: obtain TDD system and the resource allocation result of FDD system and user profile to be dispatched.
In the present invention, FDD system and TDD system are TDD system and FDD system colocation site in a set of equipment, and specifically, TDD system and FDD system are concurrently present in a base station.
In this step, according to prior art, within each dispatching cycle, TDD system and FDD system carry out priority arrangement to respective user respectively, carry out resource distribution in advance, thus obtain the resource allocation result of TDD system and FDD system and user profile to be dispatched.
Step 101: the bandwidth of the statistics up needs of TDD system and the up available bandwidth of FDD system.
According to the resource allocation result obtained and user profile to be dispatched, the bandwidth of the statistics up needs of TDD system and the up residual available bandwidth of FDD system, implement and belong to those skilled in the art's conventional techniques means, repeat no more here.Herein, the bandwidth of up for TDD system needs is designated as BWrequired, the up residual available bandwidth of FDD system is designated as BWremained。
Step 102: according to statistical result, it is achieved TDD system takies FDD system ascending resource and carries out uplink.
In this step, when the upstream bandwidth of FDD system has residue, and during the upstream bandwidth deficiency of TDD system, TDD can consider that the upstream band resource taking FDD carries out uplink, the user of i.e. TDD sends with the standard of FDD on the ascending resource of FDD, however it is necessary that the sub-frame of uplink moment at TDD takies the uplink spectrum of FDD, as shown in Figure 2, Fig. 2 is the schematic diagram that TDD system of the present invention uses the moment of FDD ascending resource, in Fig. 2, D subframe represents the descending sub frame of TDD system, S subframe represents the special subframe of TDD system, U subframe represents the sub-frame of uplink of TDD system, it must be the moment that in TDD system, U subframe is corresponding that TDD system uses the moment of FDD system, just can use.
Such as,
If BWrequired＞ 0, and BWremained＞ 0, then can consider that TDD system takies the uplink transmission mode of FDD system ascending resource in uplink；And utilize control information notice TDD user to transmit business on the part upstream bandwidth of FDD.
Real-time resource borrowing can be realized by the inventive method, therefore, from time granularity, maximise the availability of frequency spectrum.
In this step, if the ascending resource of the CU FDD of TDD system, the most identical with data in FDD bandwidth according to TDD bandwidth, can there is a following two situation:
TDD user the ascending resource of TDD and FDD ascending resource transmission be identical data, can be the multi-form of identical data here, also referred to as diversity；And,
TDD user the ascending resource of TDD and FDD ascending resource transmission be different data, also referred to as multiplexing.
In this step, if the ascending resource of the CU FDD of TDD system, according to whether TDD user can with FDD user as resource on do uplink multi-users multiple-input and multiple-output (MIMO) pairing, can have with situation: when TDD user can with FDD user as resource on be uplink multi-users MIMO pairing, then match；Otherwise this resource of the CU of only one of which system.
Pass through the inventive method, it is achieved that the flexible allocation of frequency spectrum, provide the availability of frequency spectrum, and then improve throughput of system.
Utilize the inventive method, it is desirable to user terminal (UE) may be simultaneously operated in TDD system and the system of FDD and the frequency band of correspondence.
For the inventive method, also providing for a kind of device, Fig. 3 is the composition schematic diagram of the device realizing spectral coordination between TDD system of the present invention and FDD system, as it is shown on figure 3, apparatus of the present invention mainly include TDD system, FDD system and statistic unit, wherein,
TDD system, for obtaining the resource allocation result of self and user profile to be dispatched, and reports statistic unit；
FDD system, for obtaining the resource allocation result of self and user profile to be dispatched, and reports statistic unit；Reception TDD system takies FDD system ascending resource and carries out the scheduling result of uplink, knows the occupied situation of self upstream band.
Statistic unit, for adding up bandwidth and the up available bandwidth of FDD system of the up needs of TDD system, and analytic statistics result, determine whether TDD system can take the ascending resource of FDD system, and situation about taking, and be sent to TDD system and FDD system.
Below in conjunction with embodiment, the inventive method is described in detail.
Fig. 4 is the schematic flow sheet of first embodiment of the invention, is scheduling for the sub-frame of uplink in TDD system, as shown in Figure 4, and including:
The User Priority of internal system is ranked up by step 400:TDD system and FDD system respectively, and carries out pre-allocation of resources.
Resource allocation result and user profile to be dispatched are reported statistic unit by step 401:TDD system and FDD system.
Step 402: statistic unit coordinates bandwidth, and notifies TDD system and FDD system.
This step includes: the bandwidth BW of the statistic unit statistics up needs of TDD systemrequired, and FDD system up can bandwidth BW for public useremained(also referred to as residual available bandwidth)；
If BWrequired＞ 0, and BWremained＞ 0, in the present embodiment, TDD system takies FDD system ascending resource in uplink；And utilize control information notice TDD user to transmit business on the part upstream bandwidth of FDD；
In the present embodiment, in a tdd system, TDD user transmits different data contents on the upstream bandwidth of FDD system and TDD system；Or, in a tdd system, TDD user transmits identical data content on the upstream bandwidth of FDD system and TDD system, and signal form can be different here, but should be the same from high-rise packet.
Step 403:TDD system re-starts scheduling according to the coordination result of step 402.
Fig. 5 is the schematic flow sheet of second embodiment of the invention, is scheduling for the sub-frame of uplink in TDD system, as it is shown in figure 5, include:
The User Priority of internal system is ranked up by step 500:TDD system and FDD system respectively, and carries out pre-allocation of resources.
Resource allocation result and user profile to be dispatched are reported statistic unit by step 501:TDD system and FDD system.
Step 502: statistic unit coordinates bandwidth.In this step, the bandwidth BW of the statistic unit statistics up needs of TDD systemrequired, and FDD system up can bandwidth BW for public useremained(also referred to as residual available bandwidth).
Step 503: in the present embodiment, it is assumed that TDD system and FDD system can carry out multiuser MIMO pairing, then, statistic unit carries out up multiplex MIMO pairing to TDD user and FDD user.Implementing of this step belongs to those skilled in the art's conventional techniques means, and I will not elaborate.
Step 504: the bandwidth coordinated and pairing result are notified TDD system and FDD system by statistic unit.
Step 505:TDD system reschedules according to the coordination result of step 502.
If BWrequired＞ 0, and BWremained＞ 0, in the present embodiment, TDD system takies FDD system ascending resource in uplink；And utilize control information notice TDD user to transmit business on the part upstream bandwidth of FDD；Further,
In the present embodiment, in a tdd system, TDD user is transmitted with FDD user on FDD upstream bandwidth simultaneously.
The above, only presently preferred embodiments of the present invention, it is not intended to limit protection scope of the present invention, all any amendment, equivalent and improvement etc. made within the spirit and principles in the present invention, should be included within the scope of the present invention.
Claims (7)
1. the method realizing spectral coordination between TDD system and FDD system, it is characterised in that including:
Obtain time division multiplex TDD system and the resource allocation result of frequency division multiplexing FDD system and user profile to be dispatched；
The bandwidth of the statistics up needs of TDD system and the up available bandwidth of FDD system；
When the upstream bandwidth of FDD system has a residue, and during the upstream bandwidth deficiency of TDD system, the user of described TDD system standard with FDD in FDD system sends, and takies the uplink spectrum of FDD system in the sub-frame of uplink moment of TDD system；
Wherein, described TDD system and FDD system colocation site.
Method the most according to claim 1, it is characterised in that described statistical result is: the up available bandwidth of described FDD system has residue, and the bandwidth of the up needs of TDD system is not enough.
Method the most according to claim 1, it is characterised in that the user of described TDD system transmits identical data at the ascending resource of TDD system with the ascending resource of FDD system.
Method the most according to claim 3, it is characterised in that described identical data have multi-form.
Method the most according to claim 1, it is characterised in that the user of described TDD system transmits different data at the ascending resource of TDD system with the ascending resource of FDD system.
Method the most according to claim 1 and 2, it is characterised in that the method also includes: the user of described TDD system and the user of FDD system as resource on carry out uplink multi-users MIMO pairing.
7. the device realizing spectral coordination between TDD system and FDD system, it is characterised in that mainly include TDD system, FDD system and statistic unit, wherein,
TDD system, for obtaining the resource allocation result of self and user profile to be dispatched, and reports statistic unit；Being additionally operable to according to statistical result, the user of described TDD system sends with the standard of FDD in FDD system, and takies the uplink spectrum of FDD system in the sub-frame of uplink moment of TDD system；
FDD system, for obtaining the resource allocation result of self and user profile to be dispatched, and reports statistic unit；Reception TDD system takies FDD system ascending resource and carries out the scheduling result of uplink, knows the occupied situation of self upstream band；
Statistic unit, for adding up bandwidth and the up available bandwidth of FDD system of the up needs of TDD system, when the upstream bandwidth of FDD system has residue, and during the upstream bandwidth deficiency of TDD system, the user of described TDD system sends with the standard of FDD in FDD system, and takies the uplink spectrum of FDD system in the sub-frame of uplink moment of TDD system；
Wherein, described TDD system and FDD system colocation site.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010220679.7A CN102300213B (en) | 2010-06-28 | 2010-06-28 | The method and device of spectral coordination is realized between TDD system and FDD system |
| PCT/CN2010/078893 WO2012000278A1 (en) | 2010-06-28 | 2010-11-18 | A method and device for realizing frequency spectrum coordination between tdd system and fdd system |
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| CN201010220679.7A CN102300213B (en) | 2010-06-28 | 2010-06-28 | The method and device of spectral coordination is realized between TDD system and FDD system |
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| CN102300213B true CN102300213B (en) | 2016-08-03 |
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| US11451275B2 (en) | 2004-04-02 | 2022-09-20 | Rearden, Llc | System and method for distributed antenna wireless communications |
| US11050468B2 (en) * | 2014-04-16 | 2021-06-29 | Rearden, Llc | Systems and methods for mitigating interference within actively used spectrum |
| US10194346B2 (en) | 2012-11-26 | 2019-01-29 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
| US10164698B2 (en) | 2013-03-12 | 2018-12-25 | Rearden, Llc | Systems and methods for exploiting inter-cell multiplexing gain in wireless cellular systems via distributed input distributed output technology |
| CN104734827B (en) * | 2013-12-23 | 2017-12-05 | 中国电信股份有限公司 | Dual-mode terminal utilizes DwPTS method, system and FDD macro base stations |
| CN105101421B (en) * | 2014-05-09 | 2019-10-11 | 宇龙计算机通信科技(深圳)有限公司 | Resource allocation methods and resource allocation device |
| WO2016037305A1 (en) * | 2014-09-08 | 2016-03-17 | Qualcomm Incorporated | Flexible transmissions on one or more frequency division duplexing resources |
| CN105553524B (en) * | 2015-12-09 | 2018-11-30 | 中国联合网络通信集团有限公司 | A kind of method and device obtaining FDD system down channel matrix |
| CN107980234B (en) | 2017-07-14 | 2021-04-02 | 达闼机器人有限公司 | Method and device for reporting terminal capability |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1320342A (en) * | 1998-07-25 | 2001-10-31 | 西门子公司 | Apparatus, method of and system for improving capacity in a communications network |
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| WO2012000278A1 (en) | 2012-01-05 |
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