CN101400128B - Method and device for wireless timeslot allocation in time division duplexing mobile communication system - Google Patents
Method and device for wireless timeslot allocation in time division duplexing mobile communication system Download PDFInfo
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- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
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Abstract
The invention discloses a method of a wireless frame up and down time slot distribution in a time division duplexing mobile communication system, wherein 10 ms is a period, each time slot in the period is ensured as an up transmitting time slot or a down transmitting time slot, up or downtransmission is completed in corresponding time slot. The invention also discloses a device of a wireless frame up and down time slot distribution in a time division duplexing mobile communication system, according to the method and the device of the invention , scale types of the time slot is enriched, causing the scale adjustment of the time slot to be more agile and precise.
Description
Technical field
The present invention relates to time slot allocation technology in the radio frames, particularly relate to the radio frames uplink and downlink timeslot distributes in a kind of time division duplex mobile communication system method and device.
Background technology
In long-term advancing time division duplex (LTE TDD) system, comprise two kinds of patterns at present: Type1 TDD and Type2 TDD, wherein, Type2 TDD is Time Division-Synchronous Code Division Multiple Access (TD-SCDMA) evolution technology.In LTE, low spreading rate-time division duplex (LCR-TDD) frame structure writes standard as LTE TDDType2 frame structure.
As shown in Figure 1; In the LTE TDD Type2 frame structure; Each 10ms radio frames (Radio Frame) is divided into two identical 5ms fields (Half-frame); Each field is made up of seven conventional time slots (TimeSlot) and three special time slots, and each conventional time slot is made up of several OFDMs (OFDM) symbol.Three special time slots are DwPTS, UpPTS and GP, and wherein, DwPTS is a descending pilot frequency time slot, as the transmission of downlink synchronous signal; UpPTS is a uplink pilot time slot, as up access at random; GP be the protection of downlink transfer when being transformed into uplink at interval.In conventional time slot, TS0 always is used for downlink transfer, and TS1 always is used for uplink, that is to say, TS0 is fixed as descending time slot, and TS1 is fixed as ascending time slot, but the equal flexible configuration of all the other time slots is the upstream or downstream time slot.
Because the transmission direction of TS2 to TS6 is configurable in each field, in practical application, can satisfy the needs of different service types through the ratio of flexible allocation with the adjustment uplink and downlink timeslot.But, for LTE TDD Type2 frame structure shown in Figure 1,,, and be to repeat in the cycle with 5ms so the adjustment of uplink and downlink timeslot ratio can only be carried out in field because the 10ms radio frames is divided into identical two 5ms fields, specifically as shown in Figure 2.Among Fig. 2, the time slot that point is filled is a descending time slot, and the time slot that horizontal line is filled is an ascending time slot, and the time slot that oblique line is filled is three special time slots.As can beappreciated from fig. 2, be under the time slot ratio method of salary distribution in cycle with 5ms, can only support 6 kinds of different uplink and downlink timeslot ratios at most; Shown in table one, wherein, DL representes descending time slot; UL representes ascending time slot, and the minimum particle size of time slot ratio adjustment is 14%, promptly 1/7.
| |
1 | 2 | 3 | 4 | 5 | 6 |
| DL∶ |
1∶6 | 2∶5 | 3∶4 | 4∶3 | 5∶2 | 6∶1 |
Table one
Obviously, in existing LTE TDD Type2 frame structure, be to carry out uplink and downlink timeslot the cycle to divide timing with the 5ms field; Can only support 6 kinds of different uplink and downlink timeslot ratios at most, the minimum particle size of time slot ratio adjustment is 14%, and the time slot ratio type is abundant inadequately; Adjust also underaction, accurate; Be difficult to satisfy the needs of multiple business type, and, do not give full play of the technological advantage of TDD.
Summary of the invention
In view of this, main purpose of the present invention is to provide method and the device that the radio frames uplink and downlink timeslot distributes in a kind of time division duplex mobile communication system, can enrich the time slot ratio type, makes the time slot ratio adjustment more flexibly, accurately.
For achieving the above object, technical scheme of the present invention is achieved in that
The present invention proposes the method that the radio frames uplink and downlink timeslot distributes in a kind of time division duplex mobile communication system; With 10ms is the cycle; Confirm that each time slot is uplink time slot or downlink transfer time slot in the cycle, when communicating, accomplish the upstream or downstream transmission in corresponding time slot.
This method further comprises: from all optional time slot allocative decisions, select the current time slot allocation scheme that will adopt, and in broadcast channel, indicate the current time slot allocation scheme that adopts.
Wherein, said all optional time slot allocative decisions comprise: 10ms has two couples of switching point time slot corresponding allocative decisions, 10ms that no switching point time slot corresponding allocative decision in a pair of switching point time slot corresponding allocative decision and 10ms cycle was arranged in the cycle in the cycle;
Perhaps, said all optional time slot allocative decisions comprise: 10ms has no switching point time slot corresponding allocative decision in two pairs of switching point time slot corresponding allocative decisions and 10ms cycle in the cycle.
In the such scheme, said 10ms has two pairs of switching points in each 5ms field a pair of switching point to be arranged in the cycle, comes downwards to up switching and accomplishes through GP, goes upward to descending switching in separately and accomplishes between the interior TS1 of 5ms field any two adjacent time-slots afterwards.
Said 10ms has a pair of switching point in the cycle be to come downwards to the GP of up switching through first 5ms field to accomplish, go upward to descending switching the TS1 of first 5ms field after between TS0 any two adjacent time-slots before of second 5ms field; Perhaps, come downwards to the GP of up switching through first 5ms field and accomplish, go upward between any two adjacent time-slots that descending switching ends up to the 10ms radio frames the TS1 of first 5ms field after.
In the such scheme, said being designated as used the indication of 6bits signaling or use 5bits signaling indication or use 4bits signaling indication or used the 3bits signaling to indicate.
In the such scheme; Between first time slot and second time slot of 10ms first 5ms field in the cycle, between first time slot of second 5ms field and second time slot, be respectively arranged with first particular time-slot and second particular time-slot, each particular time-slot duration is 275us.
In the such scheme, said particular time-slot is made up of DwPTS, UpPTS and three special time slots of GP; But or be that the crack in short-term of 191.66us is formed by DwPTS and transmitting downlink control signal or business datum, duration; Or by duration be 275us, the crack in short-term that can carry out up/downlink data or control signaling transmission forms.
This method further comprises: based on different signaling indication bit numbers, confirm optional time slot allocative decision by certain principle.
In the such scheme, said signaling indication bit number is 6 bits, and said certain principle is: all time slot allocation schemes that keep two pairs of switching points, a pair of switching points in the 10ms cycle and do not have a switching point are as optional time slot allocative decision.Said signaling indication bit number is 5 bits, and said certain principle is: all time slot allocation schemes that keep the 5ms assignment period; All time slot allocation schemes when keeping interior no switching point of 10ms assignment period and a pair of switching point; Under all time slot ratio prerequisites of maintenance, the time slot allocation scheme of supporting identical time slot ratio is carried out redundancy delete.Said signaling indication bit number is 4 bits, and said certain principle is: all time slot allocation schemes that keep the 5ms assignment period; The time slot allocation scheme that keeps no switching point in the 10ms assignment period; 10ms there is the time slot allocation scheme of two pairs of switching points and a pair of switching point in the cycle, the time slot allocation scheme of supporting identical time slot ratio is carried out redundancy delete under all time slot ratio prerequisites keeping.Said signaling indication bit number is 4 bits, and said certain principle is: all time slot allocation schemes that keep the 5ms assignment period; The time slot allocation scheme that keeps no switching point in the 10ms assignment period.
This method further comprises: the indication of sending twice DwPTS or sending a DwPTS in the 10ms cycle is set.
The present invention also proposes radio frames uplink and downlink timeslot assigned unit in a kind of time division duplex mobile communication system, comprises allocative decision selection module, time slot allocation module, transceiver module, wherein,
Allocative decision is selected module; Be used for confirming the current time slot allocation pattern that adopts; Confirm all optional time slot allocation schemes that this pattern is corresponding based on determined time slot allocation pattern, and the time slot allocation scheme of selecting current use sends to the time slot allocation module;
The time slot allocation module according to the time slot allocation scheme of receiving, confirms that each time slot is uplink time slot or downlink transfer time slot in the 10ms cycle, and the up-downgoing transmission time slot of 10ms in the cycle divided the notice transceiver module;
Transceiver module is used for according to ready-portioned up-downgoing transmission time slot, when communicating, carries out the upstream or downstream transmission at corresponding time slot.
This device further comprises distributing indicates generation module, is used for confirming the employed bit number of indication time slot allocation scheme, and determined indication bit number is sent to allocative decision selection module; Accordingly, allocative decision selects module further according to time slot allocation pattern of confirming and the indication bit number of receiving, confirms current all optional time slot allocation schemes, sends to the time slot allocation module from the time slot allocation scheme of wherein selecting current use again.Wherein, said bit number is any one in 3 to 6 bits.
In the such scheme, said time slot allocation pattern is: 10ms has two pairs of switching points or 10ms that no switching point in a pair of switching point or 10ms cycle was arranged in the cycle in the cycle.
In the such scheme, this device can further comprise the DwPTS indicating module, is used in reference to be shown in to send a DwPTS in the 10ms cycle or send DwPTS twice.
The radio frames uplink and downlink timeslot distributes in the time division duplex mobile communication system provided by the present invention method and device, adopting with 10ms is the thought of the cycle dividing the upstream or downstream transmission time slot, has expanded combination up, the downlink transfer time slot; Increased time slot allocation Scheme Selection scope; Therefore, abundanter uplink and downlink timeslot ratio kind can be provided, and make the adjustment of time slot ratio more flexible, accurate; Can satisfy the needs of multiple business type, bring into play the advantage of TDD technology greatly.
The present invention gives when adopting different bit numbers to indicate the time slot allocation scheme; Various optional time slot allocation schemes; Make the user can adopt the different time-gap allocative decision as required, application is more flexible, convenient, and the scope of application is wider; When adopting less bit indication, saving broadcast channel resource that also can be to a certain degree.
Description of drawings
Fig. 1 is the composition structural representation of LTE TDD Type2 frame;
Fig. 2 is in the prior art being that the uplink and downlink timeslot ratio in cycle distributes sketch map with 5ms;
Fig. 3 a～3f is for 10ms being the time slot ratio distribution sketch map that two pairs of switching points were arranged in cycle and cycle;
Fig. 4 is for being a kind of frame structure sketch map that a pair of switching point was arranged in cycle and cycle with 10ms;
Fig. 5 is the uplink and downlink timeslot ratio distribution sketch map based on frame structure shown in Figure 4;
Fig. 6 is for being the another kind of frame structure sketch map that a pair of switching point was arranged in cycle and cycle with 10ms;
Fig. 7 is the uplink and downlink timeslot ratio distribution sketch map based on frame structure shown in Figure 6;
Fig. 8 is for being the frame structure sketch map of no switching point in cycle and cycle with 10ms;
Fig. 9 is the uplink and downlink timeslot ratio distribution sketch map based on frame structure shown in Figure 8;
Figure 10 a～10c is that the uplink and downlink timeslot ratio in first prioritization scheme distributes sketch map;
Figure 11 is that the uplink and downlink timeslot ratio in second prioritization scheme distributes sketch map;
Figure 12 is that the uplink and downlink timeslot ratio in the 3rd prioritization scheme distributes sketch map.
Embodiment
Core concept of the present invention is: with the 10ms radio frames is the cycle, confirms that each time slot is uplink time slot or downlink transfer time slot in the cycle, when communicating, accomplishes the transmission of upstream or downstream in corresponding time slot.Further, confirm current all optional time slot allocation schemes, and therefrom select the current time slot allocation scheme that will adopt, the current time slot allocation scheme that adopts of indication in broadcast channel.
In each 10ms radio frames of the present invention; First time slot of first 5ms field always remains the downlink transfer time slot; Between first time slot and second time slot of first 5ms field, be respectively arranged with first particular time-slot and second particular time-slot between first time slot of second 5ms field and second time slot, each particular time-slot duration is 275us.Wherein, each particular time-slot is formed mode by three kinds and can be selected: first kind is, particular time-slot comprises DwPTS, UpPTS and three special time slots of GP, and is the same with prior art; Second kind is, but particular time-slot comprises the crack in short-term of special time slot DwPTS and transmitting downlink control signal or business datum, this in short-term the crack duration be 191.66us; The third is, particular time-slot be for can carrying out the crack in short-term of up/downlink data or the transmission of control signaling, this in short-term the crack duration be 275us.In actual applications, first particular time-slot and second particular time-slot can be chosen a kind of in above-mentioned three kinds of compositions wantonly, and the composition of two particular time-slots can be identical, also can be different.
Among the present invention; There are three kind time slot allocation patterns according to the difference of switching point number at 10ms in cycle; Therefore every kind of corresponding one or more time slot allocation schemes of time slot allocation pattern, can confirm current all optional time slot allocation schemes according to the difference of switching point number.Specifically:
First kind of time slot allocation pattern is that 10ms has two pairs of switching points in the cycle, and the frame structure that is adopted under this mode is the same with prior art, and the time slot of each 5ms field is formed as shown in Figure 1.In each 5ms field a pair of switching point is arranged, promptly come downwards to up switching point DUSP and go upward to descending switching point UDSP, wherein; Coming downwards to up switching accomplishes through GP; Can between any two adjacent time-slots after the TS1 in the 5ms field separately, accomplish and go upward to descending switching, special, can there be UDSP in the 5ms field separately; Be that TS1～TS6 is the uplink time slot, the position of switching point shown in Fig. 1 is merely a kind of signal of situation.
Second kind of time slot allocation pattern is that 10ms has a pair of switching point in the cycle, under this mode, can adopt frame structure shown in Figure 4, also can adopt frame structure shown in Figure 6.When adopting the different frame structure; Coming downwards to up switching all accomplishes through the GP of first 5ms field; Can be and go upward to descending switching at diverse location; Can be between TS0 any two adjacent time-slots before of second 5ms field after the TS1 of first 5ms field, the position of switching point shown in Fig. 4 is merely a kind of signal of situation; Also can be between any two adjacent time-slots of 10ms radio frames ending after the TS1 of first 5ms field; Special; Can there be UDSP; Be first 5ms field in the 10ms radio frames TS1 and thereafter all time slots be the uplink time slot, the position of switching point shown in Fig. 6 is merely a kind of signal of situation.
The third time slot allocation pattern is a no switching point in the 10ms cycle, and the frame structure that is adopted under this mode is as shown in Figure 8.
In first kind and second kind of time slot allocation pattern, the multiple different corresponding different uplink and downlink timeslot allocation proportion of time slot allocation scheme.
The present invention is when the current time slot allocation scheme that adopts of broadcast channel indication; Can adopt the signaling indication of different bits, such as: use indication of 6bits signaling or use 5bits signaling to indicate or use the indication of 4bits signaling or use the 3bits signaling to indicate.Employed bit number is different, and the time slot allocation scheme number that can indicate is also different.
At present, 50 kinds of optional time slot allocative decisions are arranged at most, indicate all possible time slot allocation scheme, need to use the indication of 6bits signaling, can indicate all 50 kinds optional time slot allocative decisions.If using other bit number indicates; Because the time slot allocation scheme number that can indicate is limited; Just need difference, further optimize concrete time slot allocation scheme according to the uplink and downlink timeslot allocation proportion, wherein by signaling indication bit number; Use the 5bits signaling to indicate corresponding first prioritization scheme, indicate 32 kinds of optional time slot allocative decisions; Use the 4bits signaling to indicate corresponding second prioritization scheme, indicate 14 kinds of optional time slot allocative decisions; Use corresponding the 3rd prioritization scheme of 3bits signaling indication, indicate 7 kinds of optional time slot allocative decisions.
Below in conjunction with accompanying drawing and specific embodiment, implementation of the present invention is described in further detail.Wherein, embodiment one to embodiment four has mainly provided all time slot allocation schemes of supporting under the different time-gap allocation model; Embodiment five to embodiment eight is from signaling indication angle; Provided all optional time slot allocative decisions of supporting when adopting different indication bit to count in the practical application, every kind of indication bit number is that 10ms is had two pairs of switching points, an a pair of switching point and do not have the unified indication of situation of switching point in the cycle.
Embodiment one:
In the present embodiment, first particular time-slot and second particular time-slot are formed by three special time slots; The time slot allocation pattern adopts the mode that two pairs of switching points are arranged in the 10ms.
Under this mode, 10ms is in the cycle, and first time slot among each 5ms is fixed as the downlink transfer time slot, and second time slot is fixed as the uplink time slot, and all the other time slots all are set to uplink time slot or downlink transfer time slot arbitrarily.
The frame structure that adopts in the present embodiment is consistent with prior art, and the formed concrete time slot allocation scheme of present embodiment comprises 36 kinds shown in Fig. 3 a～3f, and corresponding different time slot patterns is supported 11 kinds of uplink and downlink timeslot ratios, shown in table two.
| Time |
1 | ?2 | ?3 | ?4 | ?5 | ?6 | ?7 | ?8 | ?9 | ?10 | ?11 |
| |
2∶12 | ?3∶11 | ?4∶10 | ?5∶9 | ?6∶8 | ?7∶7 | ?8∶6 | ?9∶5 | ?10∶4 | ?11∶3 | ?12∶2 |
Table two
Can see, compare table one and increased five kinds of time slot ratios newly that simultaneously time slot ratio adjustment granularity becomes 7% by 14%, promptly 1/14, the time slot ratio type is abundanter, adjustment is more accurate.
Embodiment two:
In the present embodiment, first particular time-slot is made up of three special time slots, but second particular time-slot by the crack in short-term of DwPTS and transmitting downlink control signal or business datum, this in short-term the crack duration be 191.66us; The time slot allocation pattern adopts the mode that a pair of switching point is arranged in the 10ms.
Under this mode; 10ms is in the cycle, and first time slot among first 5ms is fixed as the downlink transfer time slot, and second time slot is fixed as the uplink time slot; All time slots are the downlink transfer time slot among second 5ms, and all the other time slots are set to uplink time slot or downlink transfer time slot arbitrarily.
Adopt frame structure shown in Figure 4 in the present embodiment, DwPTS sends twice in 10ms.The formed concrete time slot allocation scheme of present embodiment is as shown in Figure 5, comprises 7 kinds, and corresponding different time slot patterns is supported 7 kinds of uplink and downlink timeslot ratios, shown in table three.
| Time |
1 | 2 | 3 | 4 | 5 | 6 | 7 |
| |
13∶1 | 12∶2 | 11∶3 | 10∶4 | 9∶5 | 8∶6 | 7∶7 |
Table three
Can find out that time slot ratio in present embodiment adjustment granularity is 7% promptly 1/14, wherein, the calculating ratio is that the crack in short-term that will not increase newly is included.
Embodiment three:
In the present embodiment, first particular time-slot is made up of three special time slots, and second particular time-slot be for can carrying out the crack in short-term of up/downlink data or control signaling transmission, this in short-term the crack duration be 275us; The time slot allocation pattern adopts the mode that a pair of switching point is arranged in the 10ms.
Under this mode, 10ms is in the cycle, and first time slot among first 5ms is fixed as the downlink transfer time slot, and second time slot is fixed as the uplink time slot, and all the other all time slots are set to uplink time slot or downlink transfer time slot arbitrarily.
Adopt frame structure shown in Figure 6 in the present embodiment, DwPTS only sends once in 10ms.The formed concrete time slot allocation scheme of present embodiment is as shown in Figure 7, comprises 13 kinds, and corresponding different time slot patterns is supported 13 kinds of uplink and downlink timeslot ratios, shown in table four.
| Time |
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 1?0 | 11 | 12 | 13 |
| |
13∶1 | 12∶2 | 11∶3 | 10∶4 | 9∶5 | 8∶6 | 7∶7 | 6∶8 | 5∶9 | 4∶1?0 | 3∶11 | 2∶12 | 1∶13 |
Table four
Can find out, in the 10ms radio frames, can support maximum 13 kinds of uplink and downlink timeslot ratios in the present embodiment, than having more two kinds among the embodiment one, time slot ratio adjustment granularity is 7% promptly 1/14, and wherein, the calculating ratio is that the crack in short-term that will not increase newly is included.
In embodiment two and embodiment three, send twice DwPTS in the 10ms cycle and still send DwPTS one time, can be in advance in the base station side setting, and indicate by independent signaling.
Embodiment four:
In the present embodiment, first particular time-slot and second particular time-slot are the crack in short-term that can carry out downlink data or control signaling transmission, this in short-term the crack duration be 275us; The time slot allocation pattern adopts the mode of no switching point in the 10ms; Use the indication of 6bits signaling at broadcast channel.Under this mode, all time slots in the 10ms cycle are the downlink transfer time slot, comprise two newly-increased cracks in short-term, also are the downlink transfer time slot.
Adopt frame structure shown in Figure 8 in the present embodiment, this frame structure generally is applied to enhancing multimedia broadcast multicast services (E-MBMS) business of Independent Carrier Wave.The formed concrete time slot allocation scheme of present embodiment is as shown in Figure 9.
Embodiment five:
In the present embodiment; Broadcast channel uses the indication of 6bits signaling; Because 26=64 can indicate 64 kinds of schemes, so all 50 kinds of time slot allocation schemes that keep two pairs of switching points, a pair of switching points in the 10ms cycle in the present embodiment and do not have a switching point are as optional time slot allocative decision; Specifically comprise: 36 kinds of the time slot allocation schemes of interior two pairs of switching points of 10ms cycle, shown in Fig. 3 a～3f; 13 kinds of the time slot allocation schemes of 10ms a pair of switching point in the cycle, as shown in Figure 7; 1 kind of the time slot allocation scheme of interior no switching point of 10ms cycle, as shown in Figure 9.
That is to say, when broadcast channel uses the indication of 6bits signaling, support from 50 kinds of time slot allocation schemes, to choose any one kind of them and indicate.
Embodiment six:
In the present embodiment, broadcast channel uses the indication of 5bits signaling, because 2
5=32 can only indicate 32 kinds of schemes, so need 50 kinds of time slot allocation schemes that embodiment five provides be optimized.
Present embodiment is first prioritization scheme in the practical application; Concrete optimization principles is: all time slot allocation schemes that keep the 5ms assignment period; Keep complete descending time slot allocation scheme; All time slot allocation schemes when keeping a pair of switching point under the 10ms assignment period under the prerequisite that keeps all time slot ratios, are supported the situation of identical time slot ratio to carry out redundancy to multiple time slot allocation scheme and are deleted simultaneously.
Concrete, shown in figure 10, keep 32 kinds of time slot allocation schemes as optional time slot allocative decision.Comprise three parts; Represent by Figure 10 a～10c respectively; Wherein, comprise 18 kinds of the time slot allocation schemes of two pairs of switching points in the 10ms cycle among Figure 10 a, indicate by label (1)～(18); Label is that (1), (3), (7), (11), (15), (18) six kinds of time slot allocation schemes are identical with the time slot allocation scheme of 5ms assignment period among Figure 10 a, and all the other 12 kinds is the newly-increased time slot allocation scheme of 10ms assignment period; Comprise 13 kinds of the time slot allocation schemes of 10ms a pair of switching point in the cycle among Figure 10 b, indicate by label (19)～(31); Comprise a kind of the time slot allocation scheme of no switching point in the 10ms cycle among Figure 10 c, indicate by label (32).
That is to say, when broadcast channel uses the indication of 5bits signaling, support from 32 kinds of time slot allocation schemes, to choose any one kind of them and indicate.
Embodiment seven:
In the present embodiment, broadcast channel uses the indication of 4bits signaling, because 2
4=16 can only indicate 16 kinds of schemes, so need further optimize 32 kinds of time slot allocation schemes that embodiment six provides.
Present embodiment is second prioritization scheme in the practical application; Concrete optimization principles is: all time slot allocation schemes that keep the 5ms assignment period; Keep complete descending time slot allocation scheme; Under the prerequisite that keeps all time slot ratios, support the situation of identical time slot ratio to carry out redundancy to multiple time slot allocation scheme and delete simultaneously.
Concrete, shown in figure 11, keep 14 kinds of time slot allocation schemes as optional time slot allocative decision.Wherein, 11 kinds of the time slot allocation schemes of interior two pairs of switching points of 10ms cycle; By label (1), (2), (3), (6), (7), (10), (11), (14), (15), (17), (18) indication; Label is that (1), (3), (7), (11), (15), (18) six kinds of time slot allocation schemes are identical with the time slot allocation scheme of 5ms assignment period, and all the other 5 kinds is the newly-increased time slot allocation scheme of 10ms assignment period; 4 kinds of the time slot allocation schemes of 10ms a pair of switching point in the cycle are by label (19), (23), (27), (31) indication; 1 kind of the time slot allocation scheme of interior no switching point of 10ms cycle, by label (32) indication, identical among label employed in figure 11 and Figure 10.
That is to say, when broadcast channel uses the indication of 4bits signaling, support from 14 kinds of time slot allocation schemes, to choose any one kind of them and indicate.
Embodiment eight:
In the present embodiment, broadcast channel uses the indication of 3bits signaling, because 2
3=8 can only indicate 8 kinds of schemes, so need further optimize 16 kinds of time slot allocation schemes that embodiment seven provides again.
Present embodiment is the 3rd prioritization scheme in the practical application, and concrete optimization principles is: keep all time slot allocation schemes of 5ms assignment period, keep complete descending time slot allocation scheme.
Concrete, shown in figure 12, keep 7 kinds of time slot allocation schemes as optional time slot allocative decision.Wherein, 6 kinds of the time slot allocation schemes of interior two pairs of switching points of 10ms cycle are (1), (3), (7), (11), (15), (18) indication by label, and these six kinds of time slot allocation schemes are identical with the time slot allocation scheme of 5ms assignment period; 1 kind of the time slot allocation scheme of interior no switching point of 10ms cycle, by label (32) indication, identical among label employed in figure 12 and Figure 10.
That is to say, when broadcast channel uses the indication of 3bits signaling, support from 7 kinds of time slot allocation schemes, to choose any one kind of them and indicate.
For realizing said method, the present invention also proposes radio frames uplink and downlink timeslot assigned unit in a kind of time division duplex mobile communication system, comprises allocative decision selection module, time slot allocation module, transceiver module at least.
Wherein, Allocative decision selects module to be used for confirming the current time slot allocation pattern that adopts; That is: 10ms has two pairs of switching points or 10ms that no switching point in a pair of switching point or 10ms cycle was arranged in the cycle in the cycle; Confirm all optional time slot allocation schemes that this pattern is corresponding according to determined time slot allocation pattern, and the time slot allocation scheme of selecting current use sends to the time slot allocation module.Here, can list all corresponding optional time slot allocative decisions of different time-gap allocation model in advance, confirm the time slot allocation pattern of current employing after, can directly obtain all corresponding time slot allocation schemes according to corresponding relation.Such as corresponding 36 kinds of time slot allocation schemes during two pairs of switching points in: 10ms cycle, corresponding 13 kinds of time slot allocation schemes during a pair of switching point, a kind of time slot allocation scheme of correspondence etc. during no switching point.
The time slot allocation module confirms that according to the time slot allocation scheme of receiving each time slot is uplink time slot or downlink transfer time slot in the 10ms cycle, afterwards the up-downgoing transmission time slot of 10ms in the cycle is divided the notice transceiver module.
Transceiver module is according to ready-portioned up-downgoing transmission time slot, when communicating, at corresponding slot transmission upstream or downstream business datum or transmitting downlink control signal.
This device can further comprise distributing indicates generation module; Be used for confirming the employed bit number of indication time slot allocation scheme; Can be in 3～6 bits any one, confirm the indication bit number after, distribute the indication generation module that determined indication bit number is sent to allocative decision and select module.
Allocative decision selects module further to combine time slot allocation pattern of confirming and the indication bit number of receiving, confirms current all optional time slot allocation schemes, sends to the time slot allocation module from the time slot allocation scheme of wherein selecting current use again.Here; Can list different time-gap allocation model, different indication bit in advance and count all corresponding under the situation optional time slot allocation schemes; After the time slot allocation pattern and indication bit number of confirming current use; Can directly obtain all corresponding time slot allocation schemes according to corresponding relation, therefrom select the time slot allocation scheme of current use afterwards again.Such as: corresponding 50 kinds of time slot allocation schemes during the 6bits indication comprise two pairs of following 36 kinds of time slot allocation schemes of switching point pattern in the 10ms cycle, the following 13 kinds of time slot allocation schemes of a pair of switching point pattern, the following a kind of time slot allocation scheme of no switching point pattern; Corresponding 32 kinds of time slot allocation schemes comprise two pairs of following 18 kinds of time slot allocation schemes of switching point pattern in the 10ms cycle, the following 13 kinds of time slot allocation schemes of a pair of switching point pattern, following a kind of time slot allocation scheme of no switching point pattern or the like during the 5bits indication.
Do not comprise in apparatus of the present invention when distributing the indication generation module that the employed bit number of acquiescence indication time slot allocation scheme is 6.
This device can further comprise the DwPTS indicating module, is used in reference to when being shown in 10ms and having only a pair of switching point in the cycle, sends a DwPTS and still sends DwPTS twice.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (14)
1. the method that the radio frames uplink and downlink timeslot distributes in the time division duplex mobile communication system; It is characterized in that, be the cycle with 10ms, confirms that each time slot is uplink time slot or downlink transfer time slot in the cycle; When communicating, accomplish the upstream or downstream transmission in corresponding time slot;
Confirming that each time slot is in the process of uplink time slot or downlink transfer time slot in the cycle, from all optional time slot allocative decisions, select the current time slot allocation scheme that will adopt, and in broadcast channel, indicate the current time slot allocation scheme that adopts;
This method further comprises: based on different signaling indication bit numbers, confirm optional time slot allocative decision by certain principle, and the indication of sending twice DwPTS or sending a DwPTS in the 10ms cycle is set.
2. method according to claim 1; It is characterized in that said all optional time slot allocative decisions comprise: 10ms has two couples of switching point time slot corresponding allocative decisions, 10ms that no switching point time slot corresponding allocative decision in a pair of switching point time slot corresponding allocative decision and 10ms cycle was arranged in the cycle in the cycle; Perhaps,
Said all optional time slot allocative decisions comprise: 10ms has no switching point time slot corresponding allocative decision in two pairs of switching point time slot corresponding allocative decisions and 10ms cycle in the cycle.
3. method according to claim 2; It is characterized in that; Said 10ms has two pairs of switching points in each 5ms field a pair of switching point to be arranged in the cycle; Come downwards to up switching and accomplish, go upward to descending switching in separately and accomplish between the interior TS1 of 5ms field any two adjacent time-slots afterwards through GP.
4. method according to claim 2; It is characterized in that; Said 10ms has a pair of switching point in the cycle be to come downwards to the GP of up switching through first 5ms field to accomplish, go upward to descending switching the TS1 of first 5ms field after between TS0 any two adjacent time-slots before of second 5ms field; Perhaps,
Come downwards to the GP of up switching through first 5ms field and accomplish, go upward between any two adjacent time-slots that descending switching ends up to the 10ms radio frames the TS1 of first 5ms field after.
5. according to each described method of claim 1 to 4, it is characterized in that said signaling is designated as to be used the indication of 6bits signaling or use 5bits signaling indication or use 4bits signaling indication or use the 3bits signaling to indicate.
6. according to each described method of claim 1 to 4; It is characterized in that; Between first time slot and second time slot of 10ms first 5ms field in the cycle, between first time slot of second 5ms field and second time slot, be respectively arranged with first particular time-slot and second particular time-slot, each particular time-slot duration is 275us.
7. method according to claim 6 is characterized in that, said particular time-slot is made up of DwPTS, UpPTS and three special time slots of GP; But or be that the crack in short-term of 191.66us is formed by DwPTS and transmitting downlink control signal or business datum, duration; Or by duration be 275us, the crack in short-term that can carry out up/downlink data or control signaling transmission forms.
8. method according to claim 7; It is characterized in that; Said signaling indication bit number is 6 bits, and said certain principle is: all time slot allocation schemes that keep two pairs of switching points, a pair of switching points in the 10ms cycle and do not have a switching point are as optional time slot allocative decision.
9. method according to claim 7 is characterized in that, said signaling indication bit number is 5 bits, and said certain principle is: all time slot allocation schemes that keep the 5ms assignment period; All time slot allocation schemes when keeping interior no switching point of 10ms assignment period and a pair of switching point; Under all time slot ratio prerequisites of maintenance, the time slot allocation scheme of supporting identical time slot ratio is carried out redundancy delete.
10. method according to claim 7 is characterized in that, said signaling indication bit number is 4 bits, and said certain principle is: all time slot allocation schemes that keep the 5ms assignment period; The time slot allocation scheme that keeps no switching point in the 10ms assignment period; 10ms there is the time slot allocation scheme of two pairs of switching points and a pair of switching point in the cycle, the time slot allocation scheme of supporting identical time slot ratio is carried out redundancy delete under all time slot ratio prerequisites keeping.
11. method according to claim 7 is characterized in that, said signaling indication bit number is 4 bits, and said certain principle is: all time slot allocation schemes that keep the 5ms assignment period; The time slot allocation scheme that keeps no switching point in the 10ms assignment period.
12. radio frames uplink and downlink timeslot assigned unit is characterized in that in the time division duplex mobile communication system, this device comprises allocative decision selection module, time slot allocation module, transceiver module, wherein,
Allocative decision is selected module; Be used for confirming the current time slot allocation pattern that adopts; Confirm all optional time slot allocation schemes that this pattern is corresponding based on determined time slot allocation pattern, and the time slot allocation scheme of selecting current use sends to the time slot allocation module;
The time slot allocation module according to the time slot allocation scheme of receiving, confirms that each time slot is uplink time slot or downlink transfer time slot in the 10ms cycle, and the up-downgoing transmission time slot of 10ms in the cycle divided the notice transceiver module;
Transceiver module is used for according to ready-portioned up-downgoing transmission time slot, when communicating, carries out the upstream or downstream transmission at corresponding time slot,
This device further comprises distributing indicates generation module, is used for confirming the employed bit number of indication time slot allocation scheme, and determined indication bit number is sent to allocative decision selection module;
Accordingly, allocative decision selects module further according to time slot allocation pattern of confirming and the indication bit number of receiving, confirms current all optional time slot allocation schemes, sends to the time slot allocation module from the time slot allocation scheme of wherein selecting current use again;
This device further comprises the DwPTS indicating module, is used in reference to be shown in to send a DwPTS in the 10ms cycle or send DwPTS twice.
13. device according to claim 12 is characterized in that, said bit number is any one in 3 to 6 bits.
14., it is characterized in that said time slot allocation pattern is according to claim 11,12 or 13 described devices: 10ms has two pairs of switching points or 10ms that no switching point in a pair of switching point or 10ms cycle was arranged in the cycle in the cycle.
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| CN200710122552XA CN101400128B (en) | 2007-09-26 | 2007-09-26 | Method and device for wireless timeslot allocation in time division duplexing mobile communication system |
| PCT/CN2008/001644 WO2009046625A1 (en) | 2007-09-26 | 2008-09-24 | A method and device for allocating time slots of radio frame in time division duplexing mobile communication system |
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| CN102064879B (en) * | 2010-11-30 | 2014-05-07 | 大唐移动通信设备有限公司 | Method, system and equipment for time division duplex communication |
| CN108200653B (en) | 2011-04-01 | 2022-08-02 | 英特尔公司 | Flexible adjustment of uplink and downlink ratio configuration |
| WO2013181846A1 (en) * | 2012-06-08 | 2013-12-12 | 海能达通信股份有限公司 | Data transmission method and device in private network communications |
| CN106341891A (en) * | 2015-07-10 | 2017-01-18 | 中兴通讯股份有限公司 | Data transmission method, client device and server device |
| CN107040998B (en) | 2016-02-03 | 2021-08-20 | 华为技术有限公司 | Communication method and device |
| CN108093487B (en) * | 2016-11-22 | 2020-09-15 | 维沃移动通信有限公司 | Scheduling method, terminal and base station |
| CN109803387B (en) * | 2017-11-17 | 2021-01-15 | 中国移动通信有限公司研究院 | Resource allocation method and network side equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1582001A (en) * | 2003-07-31 | 2005-02-16 | 华为技术有限公司 | Method for high-frequency amplifying station to gain switching point in TD-SCDMA system |
| CN1780457A (en) * | 2004-11-24 | 2006-05-31 | 北京三星通信技术研究有限公司 | Wireless channel resource allocation |
| CN101005305A (en) * | 2006-01-17 | 2007-07-25 | 上海原动力通信科技有限公司 | Transmitting method for time division duplex mobile communication system |
Family Cites Families (2)
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| KR20020052561A (en) * | 2000-12-26 | 2002-07-04 | 구자홍 | Method for Measuring Position in Time Division Duplex mode |
| EP1511190A1 (en) * | 2003-08-27 | 2005-03-02 | Siemens Aktiengesellschaft | Method for transmission in a TDD system with variable length guard period |
-
2007
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| CN1582001A (en) * | 2003-07-31 | 2005-02-16 | 华为技术有限公司 | Method for high-frequency amplifying station to gain switching point in TD-SCDMA system |
| CN1780457A (en) * | 2004-11-24 | 2006-05-31 | 北京三星通信技术研究有限公司 | Wireless channel resource allocation |
| CN101005305A (en) * | 2006-01-17 | 2007-07-25 | 上海原动力通信科技有限公司 | Transmitting method for time division duplex mobile communication system |
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