CN104734827A - Method and system for dual-mode terminal to utilize DwPTS and FDD macro eNB - Google Patents
Method and system for dual-mode terminal to utilize DwPTS and FDD macro eNB Download PDFInfo
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- CN104734827A CN104734827A CN201310716744.9A CN201310716744A CN104734827A CN 104734827 A CN104734827 A CN 104734827A CN 201310716744 A CN201310716744 A CN 201310716744A CN 104734827 A CN104734827 A CN 104734827A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
- H04L5/0035—Resource allocation in a cooperative multipoint environment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
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Abstract
The invention relates to a method and system for a dual-mode terminal to utilize DwPTS and an FDD macro eNB. The method comprises the steps of inquiring the configuration condition of UpPTS in a special subframe of the TDD frequency band in a TDD mini base station to meet the requirement of the FDD-TDD dual-mode terminal for carrier aggregation when it is detected that the FDD-TDD dual-mode terminal moves to the area covered by the TDD mini base station; determining usable FDD downlink timeslot and DwPTS in the special subframe of the TDD frequency band when downlink scheduling is conducted on the FDD-TDD dual-mode terminal according to the UpPTS configuration condition obtained through inquiring, wherein the FDD-TDD dual-mode terminal only conducts simultaneous reception on the FDD frequency band and the TDD frequency band. By utilizing the special subframe of TDD during FDD carrier and TDD carrier aggregation, system performance is improved.
Description
Technical field
The disclosure relates to wireless communication technology field, especially, relate to a kind of LTE(Long TermEvolution, Long Term Evolution) FDD(Frequency Division Duplex, Frequency Division Duplexing (FDD))-TDD(Time Division Duplex, time division duplex) dual-mode terminal utilizes TDD frequency range DwPTS(Downlink Pilot TimeSlot, descending pilot frequency time slot) method, system and FDD macro base station.
Background technology
Along with the development of wireless communication technology, particularly intelligent terminal is universal, the requirement of people to the capacity of cordless communication network, speed and quality is also more and more higher, meanwhile, increasing operator will have FDD and TDD frequency spectrum simultaneously, to meet growing network demand, therefore, it is the problem that 3GPP is discussing at present that FDD and the TDD frequency spectrum how operator had uses better.
At present, 3GPP is considering the CA(Carrier Aggregation of TDD and FDD, carrier aggregation) technology is as a kind of method realizing TDD and FDD rational spectrum utilization.But, also do not come into question about the concrete ins and outs of the CA technology of TDD and FDD, and up to the present also proposed without any company the carrier aggregation specifically how realizing TDD and FDD.
The frame structure of FDD and TDD system has obvious difference.The frame structure of TDD has a SS(Special Subframe, special subframe), this special subframe, by DwPTS, GP(GuardPeriod, protects interval) and UpPTS(Uplink Pilot Time Slot, uplink pilot time slot) composition, as shown in Figure 1.
According to the up-to-date resolution of 3GPP, need below consideration three kinds of UE(User Equipment when discussing TDD and FDD carrier aggregation technology, terminal) ability:
(1) FDD and TDD frequency spectrum can only receive simultaneously;
(2) FDD and TDD frequency spectrum can only be launched simultaneously;
(3) FDD and TDD frequency spectrum can send simultaneously and receive.
For only possessing the terminal that (1) plants ability, because UpPTS existing in the special subframe of TDD has DwPTS again, therefore how to formulate dispatching criterion and method to guarantee that this Terminal Type can either utilize the special subframe of TDD frequency spectrum, can avoid again conflicting mutually with FDD downlink reception is technical problem urgently to be resolved hurrily at present simultaneously.
Summary of the invention
The disclosure proposes new technical scheme in view of at least one in above problem.
The disclosure provides a kind of method that LTE FDD-TDD dual-mode terminal utilizes TDD frequency range DwPTS in one, and it utilizes the special subframe of TDD when FDD carrier wave and TDD carrier aggregation, and then improves systematic function.
The disclosure provides a kind of FDD macro base station on the other hand at it, and it utilizes the special subframe of TDD when FDD carrier wave and TDD carrier aggregation, and then improves systematic function.
The disclosure provides the system that a kind of LTE FDD-TDD dual-mode terminal utilizes TDD frequency range DwPTS in it is another, and it utilizes the special subframe of TDD when FDD carrier wave and TDD carrier aggregation, and then improves systematic function.
According to the disclosure, provide a kind of LTE FDD-TDD dual-mode terminal to utilize the method for TDD frequency range DwPTS, comprising:
When detecting that FDD-TDD dual-mode terminal moves in the coverage of the little base station of TDD, in response to the demand of FDD-TDD dual-mode terminal to carrier aggregation, to the little base station of TDD little base station inquiry TDD to the configuring condition of the UpPTS in TDD frequency range special subframe;
According to inquire determine to carry out descending scheduling to FDD-TDD dual-mode terminal to the configuring condition of UpPTS time spendable FDD descending time slot and TDD frequency range special subframe in DwPTS;
Wherein, FDD-TDD dual-mode terminal only receives on FDD and TDD frequency spectrum simultaneously.
In embodiments more of the present disclosure, to the configuring condition of the UpPTS in TDD frequency range special subframe be neither configure in UpPTS short Random Access Channel also not configurating channel detection reference signal, in UpPTS, be configured with short Random Access Channel and/or be configured with any one in Sounding Reference Signal or above-mentioned situation.
In embodiments more of the present disclosure, according to inquire determine to carry out descending scheduling to FDD-TDD dual-mode terminal to the configuring condition of UpPTS time spendable FDD descending time slot and TDD frequency range special subframe in the step of DwPTS comprise:
In response to neither configuring short Random Access Channel also not configurating channel detection reference signal in UpPTS, FDD macro base station uses all descending time slots in the descending sub frame of FDD frequency range and the DwPTS in TDD frequency range special subframe simultaneously when carrying out descending scheduling to FDD-TDD dual-mode terminal;
In response to being both configured with short Random Access Channel and/or being configured with Sounding Reference Signal in UpPTS, FDD macro base station uses descending time slot overlapping with DwPTS in the descending sub frame of DwPTS and the FDD frequency range in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal simultaneously;
In response to the arbitrary disposition to UpPTS, FDD macro base station uses descending time slot overlapping with DwPTS in the descending sub frame of DwPTS and the FDD frequency range in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal simultaneously;
In response to the arbitrary disposition to UpPTS, FDD macro base station uses the DwPTS in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal.
According to the disclosure, additionally provide a kind of FDD macro base station, comprising:
Configuration querying unit, for when detecting that FDD-TDD dual-mode terminal moves in the coverage of the little base station of TDD, in response to the demand of FDD-TDD dual-mode terminal to carrier aggregation, to the little base station of TDD little base station inquiry TDD to the configuring condition of the UpPTS in TDD frequency range special subframe;
Time slot scheduling determining unit, for according to inquire determine to carry out descending scheduling to FDD-TDD dual-mode terminal to the configuring condition of UpPTS time spendable FDD descending time slot and TDD frequency range special subframe in DwPTS;
Wherein, FDD-TDD dual-mode terminal only receives on FDD and TDD frequency spectrum simultaneously.
In embodiments more of the present disclosure, to the configuring condition of the UpPTS in TDD frequency range special subframe be neither configure in UpPTS short Random Access Channel also not configurating channel detection reference signal, in UpPTS, be configured with short Random Access Channel and/or be configured with any one in Sounding Reference Signal or above-mentioned situation.
In embodiments more of the present disclosure, time slot scheduling determining unit in response to neither configuring short Random Access Channel also not configurating channel detection reference signal in UpPTS, and FDD macro base station uses all descending time slots in the descending sub frame of FDD frequency range and the DwPTS in TDD frequency range special subframe simultaneously when carrying out descending scheduling to FDD-TDD dual-mode terminal; In response to being both configured with short Random Access Channel and/or being configured with Sounding Reference Signal in UpPTS, FDD macro base station uses descending time slot overlapping with DwPTS in the descending sub frame of DwPTS and the FDD frequency range in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal simultaneously; In response to the arbitrary disposition to UpPTS, FDD macro base station uses descending time slot overlapping with DwPTS in the descending sub frame of DwPTS and the FDD frequency range in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal simultaneously; In response to the arbitrary disposition to UpPTS, FDD macro base station uses the DwPTS in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal.
According to the disclosure, additionally provide the system that a kind of LTE FDD-TDD dual-mode terminal utilizes TDD frequency range DwPTS, comprise the FDD macro base station of FDD-TDD dual-mode terminal, the little base station of TDD and previous embodiment.
In embodiments more of the present disclosure, FDD-TDD dual-mode terminal only receives on FDD and TDD frequency spectrum simultaneously.
In technical scheme of the present disclosure, for the FDD-TDD dual-mode terminal that can only receive on FDD and TDD frequency spectrum simultaneously when carrying out carrier aggregation, determine how the DwPTS in FDD descending time slot and TDD frequency range special subframe is dispatched simultaneously according to the configuring condition of the little base station of TDD to UpPTS, both take full advantage of the conflict that TDD frequency spectrum turn avoid FDD downlink reception, significantly improve systematic function.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide further understanding of the disclosure, forms a application's part.In the accompanying drawings:
Fig. 1 is the first carrier aggregation frequency spectrum scheduling method schematic diagram that the disclosure configures for UpPTS.
Fig. 2 is the schematic flow sheet that the LTE FDD-TDD dual-mode terminal of a disclosure embodiment utilizes the method for DwPTS in TDD frequency range special subframe.
Fig. 3 is the second carrier aggregation frequency spectrum scheduling method schematic diagram that the disclosure configures for UpPTS.
Fig. 4 is the third carrier aggregation frequency spectrum scheduling method schematic diagram that the disclosure configures for UpPTS.
Fig. 5 is the 4th kind of carrier aggregation frequency spectrum scheduling method schematic diagram that the disclosure configures for UpPTS.
Fig. 6 is the schematic diagram of a disclosure application scenarios example.
Fig. 7 is the structural representation of the FDD macro base station of a disclosure embodiment.
Fig. 8 is the structural representation that the LTE FDD-TDD dual-mode terminal of a disclosure embodiment utilizes the system of DwPTS in TDD frequency range special subframe.
Embodiment
Below with reference to accompanying drawings the disclosure is described.It should be noted that following being described in is only explanatory and exemplary in essence, never as any restriction to the disclosure and application or use.Unless stated otherwise, otherwise positioned opposite and numerical expression and the numerical value of the parts of setting forth in an embodiment and step do not limit the scope of the present disclosure.In addition, technology well known by persons skilled in the art, method and apparatus may not be discussed in detail, but are intended to the part becoming specification in appropriate circumstances.
Consider the characteristic of the special subframe of TDD, present disclosure proposes for only possessing simultaneous receive capabilities on FDD and TDD frequency spectrum and do not possess the UE simultaneously receiving and dispatching ability, how to utilize TDD special subframe to improve the technical scheme of systematic function when FDD and TDD carrier aggregation, this technical scheme not only make use of the special subframe of TDD frequency spectrum, and avoids the generation of TDD and FDD downlink reception conflict simultaneously.
Fig. 2 is the schematic flow sheet that the LTE FDD-TDD dual-mode terminal of a disclosure embodiment utilizes the method for DwPTS in TDD frequency range special subframe.
As shown in Figure 2, this embodiment can comprise the following steps:
S202, when detecting that FDD-TDD dual-mode terminal moves in the coverage of the little base station of TDD, in response to the demand of FDD-TDD dual-mode terminal to carrier aggregation, to the little base station of TDD little base station inquiry TDD to the configuring condition of the UpPTS in TDD frequency range special subframe;
Particularly, that is, when detecting that FDD-TDD dual-mode terminal is in the coverage of FDD macro base station and the little base station of TDD simultaneously, being polymerized of FDD carrier wave and TDD carrier wave can be realized.The concrete polymerization how carrying out carrier wave needs FDD macro base station and the little base station of TDD to consult mutually to determine.Now, the negotiation that frequency spectrum resource is dispatched can be realized by the X2 interface between FDD macro base station and the little base station of TDD.
S204, according to inquire determine to carry out descending scheduling to FDD-TDD dual-mode terminal to the configuring condition of UpPTS time spendable FDD descending time slot and TDD frequency range special subframe in DwPTS;
Wherein, to the configuring condition of the UpPTS in TDD frequency range special subframe can for neither configure in UpPTS short Random Access Channel also not configurating channel detection reference signal, in UpPTS, be configured with short Random Access Channel and/or be configured with any one in Sounding Reference Signal or above-mentioned situation.
Wherein, FDD-TDD dual-mode terminal only receives on FDD and TDD frequency spectrum simultaneously.
In this embodiment, for the FDD-TDD dual-mode terminal that can only receive on FDD and TDD frequency spectrum simultaneously when carrying out carrier aggregation, determine how the DwPTS in FDD descending time slot and TDD frequency range special subframe is dispatched simultaneously according to the configuring condition of the little base station of TDD to UpPTS, both take full advantage of the conflict that TDD frequency spectrum turn avoid FDD downlink reception, significantly improve systematic function.
Further, in step S204, according to inquire determine to carry out descending scheduling to FDD-TDD dual-mode terminal to the configuring condition of UpPTS time spendable FDD descending time slot and TDD frequency range special subframe in the step of DwPTS can comprise:
In response to neither configuring short Random Access Channel also not configurating channel detection reference signal in UpPTS, FDD macro base station uses all descending time slots in the descending sub frame of FDD frequency range and the DwPTS in TDD frequency range special subframe simultaneously when carrying out descending scheduling to FDD-TDD dual-mode terminal, as shown in Figure 1, wherein, D in FDD subframe represents the descending time slot of FDD subframe, that is, Downlink Timeslot; D in TDD subframe represents the DwPTS in TDD special subframe, and G represents GP, and U represents UpPTS;
In response to being both configured with short Random Access Channel and/or being configured with Sounding Reference Signal in UpPTS, FDD macro base station uses descending time slot overlapping with DwPTS in the descending sub frame of DwPTS and the FDD frequency range in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal simultaneously, as shown in Figure 3;
In response to the arbitrary disposition to UpPTS, FDD macro base station uses descending time slot overlapping with DwPTS in the descending sub frame of DwPTS and the FDD frequency range in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal simultaneously, as shown in Figure 4;
In response to the arbitrary disposition to UpPTS, FDD macro base station uses the DwPTS in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal, as shown in Figure 5.
Fig. 6 is the schematic diagram of a disclosure application scenarios example.
As shown in Figure 6, LTE FDD macro base station is operated on the BAND3 of FDD frequency spectrum, is the serving BS of UE1, and UE1 is only supported on FDD frequency spectrum and TDD frequency spectrum and receives simultaneously, and is not supported in and FDD frequency spectrum and TDD frequency spectrum receives simultaneously and sends.The little base station operation of LTE TDD, on the BAND38 of TDD frequency spectrum, is the serving BS of UE2.
Example one:
When UE1 moves under the coverage of the little base station of LTE TDD, LTE FDD macro base station can by the performance using FDD+TDD carrier aggregation to improve UE1.
The little base station of LTE TDD is not for the UpPTS time slot in special subframe configures short Stochastic accessing and Sounding Reference Signal.Therefore, the descending pilot frequency time slot (front 5 the DwPTS time slots as in TDD special subframe in Fig. 1) in the descending sub frame of FDD frequency range (all 14 descending time slots as FDD subframe in Fig. 1) and TDD frequency range special subframe can be used when descending scheduling being carried out to this UE1 simultaneously.
Example two:
When UE1 moves under the coverage of the little base station of LTE TDD, LTE FDD macro base station can use FDD+TDD carrier aggregation to improve the performance of UE1 for UE1.
The little base station of LTE TDD is that the UpPTS time slot in special subframe is configured with short Stochastic accessing or Sounding Reference Signal.Therefore, the descending time slot (front 5 descending time slots as FDD subframe in Fig. 3) with DwPTS Time Slot Overlap in the descending pilot frequency time slot in TDD frequency range special subframe (front 5 the DwPTS time slots as in TDD special subframe in Fig. 3) and FDD frequency range can be used when descending scheduling being carried out to this UE1 simultaneously.
Example three:
When UE1 moves under the coverage of the little base station of LTE TDD, LTE FDD macro base station can use FDD+TDD carrier aggregation to improve the performance of UE1 for UE1.
Regardless of the configuring condition of UpPTS, the descending time slot (front 5 descending time slots as FDD subframe in Fig. 4) with DwPTS Time Slot Overlap in the descending pilot frequency time slot in TDD frequency range special subframe (front 5 the DwPTS time slots as in TDD special subframe in Fig. 4) and FDD frequency range when descending scheduling is carried out to this UE1, can only be used simultaneously.
Example four:
When UE1 moves under the coverage of the little base station of LTE TDD, LTE FDD macro base station can use FDD+TDD carrier aggregation to improve the performance of UE1 for UE1.
Regardless of the configuring condition of UpPTS, with the descending pilot frequency time slot (front 5 the DwPTS time slots as in TDD special subframe in Fig. 5) in TDD frequency range special subframe, and whole subframe overlapping with TDD special subframe in FDD frequency range can only can not be used when descending scheduling is carried out to this UE1.
One of ordinary skill in the art will appreciate that, realize the whole of said method embodiment to have been come by the hardware that program command is relevant with part steps, aforesaid program can be stored in a computing equipment read/write memory medium, this program is when performing, perform and comprise the step of said method embodiment, and aforesaid storage medium can comprise ROM, RAM, magnetic disc and CD etc. various can be program code stored medium.
Fig. 7 is the structural representation of the FDD macro base station of a disclosure embodiment.
As shown in Figure 7, the FDD macro base station 70 in this embodiment can comprise configuration querying unit 702 and time slot scheduling determining unit 704, wherein,
Configuration querying unit 702, for when detecting that FDD-TDD dual-mode terminal moves in the coverage of the little base station of TDD, in response to the demand of FDD-TDD dual-mode terminal to carrier aggregation, to the little base station of TDD little base station inquiry TDD to the configuring condition of the UpPTS in TDD frequency range special subframe;
Time slot scheduling determining unit 704, for according to inquire determine to carry out descending scheduling to FDD-TDD dual-mode terminal to the configuring condition of UpPTS time spendable FDD descending time slot and TDD frequency range special subframe in DwPTS;
Wherein, FDD-TDD dual-mode terminal only receives on FDD and TDD frequency spectrum simultaneously.
In this embodiment, for the FDD-TDD dual-mode terminal that can only receive on FDD and TDD frequency spectrum simultaneously when carrying out carrier aggregation, determine how the DwPTS in FDD descending time slot and TDD frequency range special subframe is dispatched simultaneously according to the configuring condition of the little base station of TDD to UpPTS, both take full advantage of the conflict that TDD frequency spectrum turn avoid FDD downlink reception, significantly improve systematic function.
Wherein, to the configuring condition of the UpPTS in TDD frequency range special subframe can for neither configure in UpPTS short Random Access Channel also not configurating channel detection reference signal, in UpPTS, be configured with short Random Access Channel and/or be configured with any one in Sounding Reference Signal or above-mentioned situation.
Further, time slot scheduling determining unit in response to neither configuring short Random Access Channel also not configurating channel detection reference signal in UpPTS, and FDD macro base station uses all descending time slots in the descending sub frame of FDD frequency range and the DwPTS in TDD frequency range special subframe simultaneously when carrying out descending scheduling to FDD-TDD dual-mode terminal; In response to being both configured with short Random Access Channel and/or being configured with Sounding Reference Signal in UpPTS, FDD macro base station uses descending time slot overlapping with DwPTS in the descending sub frame of DwPTS and the FDD frequency range in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal simultaneously; In response to the arbitrary disposition to UpPTS, FDD macro base station uses descending time slot overlapping with DwPTS in the descending sub frame of DwPTS and the FDD frequency range in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal simultaneously; In response to the arbitrary disposition to UpPTS, FDD macro base station uses the DwPTS in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal.
Fig. 8 is the structural representation that the LTE FDD-TDD dual-mode terminal of a disclosure embodiment utilizes the system of DwPTS in TDD frequency range special subframe.
As shown in Figure 8, the system 80 in this embodiment can comprise FDD-TDD dual-mode terminal 802, the little base station 804 of TDD and FDD macro base station 806, and wherein, FDD macro base station 806 can be realized by previous embodiment.
Further, FDD-TDD dual-mode terminal only receives on FDD and TDD frequency spectrum simultaneously.
In this specification, each embodiment all adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, and part identical with similar between each embodiment can cross-reference.For device embodiment, due to itself and embodiment of the method basic simlarity, so description is fairly simple, relevant part can see the explanation of embodiment of the method part.
Existing carrier aggregation technology thoroughly can not solve the problem of FDD and TDD carrier aggregation, and more can not solve the problem of the special subframe how utilizing TDD carrier wave.For not being supported in four downlink dispatching methods that LTEFDD-TDD dual-mode terminal that TDD and FDD frequency spectrum receives and send proposes simultaneously, disclosure above-described embodiment can ensure that this Terminal Type has the ability to realize and the carrier aggregation of FDD frequency spectrum at the special subframe of TDD frequency spectrum completely, improve the performance of terminal and system.
Although describe the disclosure with reference to exemplary embodiment, should be understood that the disclosure is not limited to above-mentioned exemplary embodiment.It will be obvious to those skilled in the art that and can revise above-mentioned exemplary embodiment under the condition not deviating from the scope of the present disclosure and spirit.The scope of appended claim should be endowed the widest explanation, to comprise all such amendments and equivalent 26S Proteasome Structure and Function.
Claims (8)
1. LTE FDD-TDD dual-mode terminal utilizes a method of TDD frequency range DwPTS, it is characterized in that, comprising:
When detecting that FDD-TDD dual-mode terminal moves in the coverage of the little base station of TDD, in response to the demand of FDD-TDD dual-mode terminal to carrier aggregation, to the little base station of TDD little base station inquiry TDD to the configuring condition of the UpPTS in TDD frequency range special subframe;
According to inquire determine to carry out descending scheduling to FDD-TDD dual-mode terminal to the configuring condition of UpPTS time spendable FDD descending time slot and TDD frequency range special subframe in DwPTS;
Wherein, FDD-TDD dual-mode terminal only receives on FDD and TDD frequency spectrum simultaneously.
2. LTE FDD-TDD dual-mode terminal according to claim 1 utilizes the method for TDD frequency range DwPTS, it is characterized in that, to the configuring condition of the UpPTS in TDD frequency range special subframe be neither configure in UpPTS short Random Access Channel also not configurating channel detection reference signal, in UpPTS, be configured with short Random Access Channel and/or be configured with any one in Sounding Reference Signal or above-mentioned situation.
3. LTE FDD-TDD dual-mode terminal according to claim 2 utilizes the method for TDD frequency range DwPTS, it is characterized in that, the step of DwPTS when what described basis inquired determines to carry out descending scheduling to FDD-TDD dual-mode terminal to the configuring condition of UpPTS in spendable FDD descending time slot and TDD frequency range special subframe comprises:
In response to neither configuring short Random Access Channel also not configurating channel detection reference signal in UpPTS, FDD macro base station uses all descending time slots in the descending sub frame of FDD frequency range and the DwPTS in TDD frequency range special subframe simultaneously when carrying out descending scheduling to FDD-TDD dual-mode terminal;
In response to being both configured with short Random Access Channel and/or being configured with Sounding Reference Signal in UpPTS, FDD macro base station uses descending time slot overlapping with DwPTS in the descending sub frame of DwPTS and the FDD frequency range in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal simultaneously;
In response to the arbitrary disposition to UpPTS, FDD macro base station uses descending time slot overlapping with DwPTS in the descending sub frame of DwPTS and the FDD frequency range in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal simultaneously;
In response to the arbitrary disposition to UpPTS, FDD macro base station uses the DwPTS in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal.
4. a FDD macro base station, is characterized in that, comprising:
Configuration querying unit, for when detecting that FDD-TDD dual-mode terminal moves in the coverage of the little base station of TDD, in response to the demand of FDD-TDD dual-mode terminal to carrier aggregation, to the little base station of TDD little base station inquiry TDD to the configuring condition of the UpPTS in TDD frequency range special subframe;
Time slot scheduling determining unit, for according to inquire determine to carry out descending scheduling to FDD-TDD dual-mode terminal to the configuring condition of UpPTS time spendable FDD descending time slot and TDD frequency range special subframe in DwPTS;
Wherein, FDD-TDD dual-mode terminal only receives on FDD and TDD frequency spectrum simultaneously.
5. FDD macro base station according to claim 4, it is characterized in that, to the configuring condition of the UpPTS in TDD frequency range special subframe be neither configure in UpPTS short Random Access Channel also not configurating channel detection reference signal, in UpPTS, be configured with short Random Access Channel and/or be configured with any one in Sounding Reference Signal or above-mentioned situation.
6. FDD macro base station according to claim 5, it is characterized in that, described time slot scheduling determining unit in response to neither configuring short Random Access Channel also not configurating channel detection reference signal in UpPTS, and FDD macro base station uses all descending time slots in the descending sub frame of FDD frequency range and the DwPTS in TDD frequency range special subframe simultaneously when carrying out descending scheduling to FDD-TDD dual-mode terminal; In response to being both configured with short Random Access Channel and/or being configured with Sounding Reference Signal in UpPTS, FDD macro base station uses descending time slot overlapping with DwPTS in the descending sub frame of DwPTS and the FDD frequency range in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal simultaneously; In response to the arbitrary disposition to UpPTS, FDD macro base station uses descending time slot overlapping with DwPTS in the descending sub frame of DwPTS and the FDD frequency range in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal simultaneously; In response to the arbitrary disposition to UpPTS, FDD macro base station uses the DwPTS in TDD frequency range special subframe when carrying out descending scheduling to FDD-TDD dual-mode terminal.
7. LTE FDD-TDD dual-mode terminal utilizes a system of TDD frequency range DwPTS, it is characterized in that, comprises FDD-TDD dual-mode terminal, the little base station of TDD and the FDD macro base station according to any one of claim 4-6.
8. LTE FDD-TDD dual-mode terminal according to claim 7 utilizes the system of TDD frequency range DwPTS, it is characterized in that, described FDD-TDD dual-mode terminal only receives on FDD and TDD frequency spectrum simultaneously.
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| CN101667946A (en) * | 2008-09-03 | 2010-03-10 | 中兴通讯股份有限公司 | Wireless access network, terminal, frequency spectrum using/multiplexing method and communication implementation method |
| CN102300213A (en) * | 2010-06-28 | 2011-12-28 | 中兴通讯股份有限公司 | Method and device for realizing frequency spectrum coordination between TDD (time division duplex) system and FDD (frequency division duplex) system |
| CN102340848A (en) * | 2010-07-14 | 2012-02-01 | 中国移动通信集团公司 | Dual-mode and dual-standby control method as well as device and terminal |
| WO2012051756A1 (en) * | 2010-10-20 | 2012-04-26 | Nokia Corporation | Shortened subframe format for fdd |
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- 2013-12-23 CN CN201310716744.9A patent/CN104734827B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101667946A (en) * | 2008-09-03 | 2010-03-10 | 中兴通讯股份有限公司 | Wireless access network, terminal, frequency spectrum using/multiplexing method and communication implementation method |
| CN102300213A (en) * | 2010-06-28 | 2011-12-28 | 中兴通讯股份有限公司 | Method and device for realizing frequency spectrum coordination between TDD (time division duplex) system and FDD (frequency division duplex) system |
| CN102340848A (en) * | 2010-07-14 | 2012-02-01 | 中国移动通信集团公司 | Dual-mode and dual-standby control method as well as device and terminal |
| WO2012051756A1 (en) * | 2010-10-20 | 2012-04-26 | Nokia Corporation | Shortened subframe format for fdd |
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