CN101399587A - Base station transmission method and device in communication system - Google Patents
Base station transmission method and device in communication system Download PDFInfo
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Abstract
The invention discloses a base station transmitting method and a device thereof. The method is simple, easy to be realized, improves the receptivity of a terminal and reduces the complexity of a receiver under the precondition that the spectral efficiency is kept unchanged. The technical proposal is that the base station transmitting method comprises the following steps: (1) the data to be transmitted and a stated transmission time in time slot are obtained from an upper layer of a system; (2) all transmission time slots are configured to be in a third time slot format, and both a reference mark and a data part do not transmit signals; (3) the time slots having effective data are configured to be in a first time slot format, including the reference mark and the data part, and both the reference mark and the data part send signals; (4) the data-related time slots in the third time slot format are configured to be in a second time slot format only including the reference mark, the data part corresponding to the first time slot format does not transmit signals, and only the reference mark transmits signals; (5) the signals of each frame are respectively transmitted according to the configured time slot formats. The method and the device are applied to the mobile communications field.
Description
Technical field
The present invention relates to a kind of base station transmission method and device, relate in particular to a kind of base station transmission method and device by time slot configuration being become multiple form transmit.
Background technology
In traditional broadcast system, analog television broadcast for example is in order to expand the coverage area, the adjacent transmission platform uses different frequency to avoid the phase mutual interference, same frequency must ability be multiplexing in addition at certain distance, Here it is multiple frequency network, MFN (Multi-Frequency Network, MFN) mode.Under this mode, one road signal need take several times frequency bandwidth, has consumed valuable frequency spectrum resource.
Along with being becoming tight frequency spectrum resource day and the development of signal processing technology, the networking mode of SFN becomes focus.(Single-Frequency Network SFN) is meant that the same time of several transmitting stations launch same signal on same frequency, with the reliable covering of realization to certain service area to so-called single frequency network.The largest benefit that single frequency network is brought is the raising of spectrum efficiency.Send one road signal in the coverage and only need a frequency, for the television broadcasting of the big bandwidth of need, this advantage is more outstanding.The diversity that a plurality of transmitting station synchronous workings are brought makes that also the reliability that receives is enhanced, and obtains better program coverage rate.In addition, by adjustment and optimization to transmit network (as the height of the quantity of transmitter, distribution, individual transmitter, transmitting power etc.), also can reduce total power consumption, alleviate interference, even change the distribution of overlay area as required easily and flexibly near other networks.
The proposition and the multi-carrier modulation of single frequency network interrelate, for example OFDM (Orthogonal Frequency Division Multiplexing, OFDM).(Long Term Evolution LTE) in the standard of being worked out, has introduced OFDM to the Long Term Evolution project of 3GPP normal structure, adopts orthogonal frequency division multiplexing multiple access (OFDMA) mode.When it works in TDD mode, a kind of frame structure wherein, basic identical with the frame structure of present TD-SCDMA system.
For cdma system, under the single frequency network pattern, come from the signal of different base station, can be moved terminal and think multipath signal, and then carry out diversity and handle.But to a certain extent, the CDMA single frequency network increases to the disposal ability of its receiver.A main change is, receiver want to tolerate more long delay and its power may with the suitable multipath signal of main footpath signal.Therefore, between each base station regularly synchronously, the data synchronization that sends, the receptivity of portable terminal is had a significant impact.
As shown in Figure 1, be the example of a typical cell mobile communication systems.This system is by a plurality of sub-districts 100
1-100
ZConstitute, a base station (NodeB) 101 is wherein respectively arranged in each sub-district
1-101
Z, simultaneously in this sub-district 100
1The user terminal (UE) 102 that has some in the service range
1-102
KEach user terminal by with affiliated Serving cell in the base station keep being connected, finish and other communication equipment between communication function.The channel that communicates between user terminal and the base station is called as up channel from the channel of user terminal to base station direction, and the channel from the base station to the user terminal direction is called as down channel.The base station is controlled and is managed by radio network controller (RNC) 103 again.By base station, radio network controller 103 and other network element devices together, just constituted land radio access web (UTRAN) 110.
TD-SCDMA is a part of 3G standard.There are a plurality of carrier resources a sub-district of present TD-SCDMA system.
As shown in Figure 2, be the frame structure schematic diagram of TD-SCDMA system.This structure is according to providing in low spreading rate time division duplex (LCR-TDD) pattern (1.28Mcps) among 3G collaborative project (3GPP) the standard TS 25.221 (Release 4).The spreading rate of TD-SCDMA system is 1.28Mcps, and the length of each radio frames (Radio Frame) 200 is 10ms, and is divided into two subframes 201 that structure is identical
0, 201
1(201), the length of each subframe is 5ms, i.e. 6400 chips.Wherein, the subframe 201 in each TD-SCDMA system can be divided into 7 time slots again (TS0～TS6) 202
0-202
6, two pilot time slots: descending pilot frequency time slot (DwPTS) 203 and uplink pilot time slot (UpPTS) 205, and protection interval (Guard) 204.Further, the TS0 time slot 202
0Be used to bearing system broadcast channel and other possible downlink traffic channel; And TS1～TS6 time slot 202
1-202
6Then be used to carry the uplink and downlink Traffic Channel.It is synchronous that uplink pilot time slot (UpPTS) 205 and descending pilot frequency time slot (DwPTS) time slot 203 are used to set up initial uplink and downlink respectively.TS0～TS6 time slot 202
0-202
6Length is 0.675ms or 864 chips, wherein comprise data segment Data Part1 (208) and Data Part 2 (210) that two segment lengths are 352 chips, and a middle segment length is the reference symbol of 144 chips---in lead sign indicating number (Midamble) sequence 209.Midamble 209 sequences are significant at TD-SCDMA, comprise cell ID, channel estimating and synchronously modules such as (comprising Frequency Synchronization) all to use it.The protection that DwPTS time slot 203 comprises 32 chips at interval 211 and one long be descending synchronous code (SYNC-DL) code word 206 of 64 chips, its effect is cell ID and sets up initial synchronisation; And the UpPTS time slot comprise one long be uplink synchronous code (SYNC-UL) code word 207 of 128 chips, subscriber terminal equipment utilizes it to carry out relevant up access procedure.At TS1～TS6 time slot 202
1-202
6Between a transfer point (Switching Point) 212 is arranged.When the up-downgoing ratio was 3: 3, transfer point 212 was positioned at TS3～TS4 time slot 202
3-202
4Between, at this moment, the employed up Dedicated Traffic Channel of user terminal is dispensed on TS1～TS3 time slot 202
1-202
3In, the descending TS4～TS6 time slot 202 that then is distributed in usually
4-202
6In.
Broadcast type multimedia services such as mobile TV belong to downlink broadcast class business.In order to provide more multimedia service on a carrier wave, a kind of complete descending special carrier technology is suggested, and promptly all time slots on carrier wave are descending time slot.Special carrier among the TD-SCDMA can be formed single frequency network usually, i.e. the SFN special carrier.Because use the SFN technology, identical signal sends simultaneously in more wide different place, causes the time delay between multipath signal bigger.In order to adapt to bigger time delay, a kind of new frame structure is suggested.
As shown in Figure 3, be a kind of structure of time slot schematic diagram of TD-SCDMA special carrier.In this structure, time slot 302 is made of a leading reference symbol (PreAmble) part 309 and data division (DataPart) 308.Each PreAmble 309 is made of 313 and reference symbol basic codes of a Cyclic Prefix (CP) (PA Code) 314, and wherein CP 313 is identical with the afterbody of PA Code 314.CP 313 is usually designed to 32 or 48 chips, so that adapt to the big situation of SFN network multi-path time delay.The length of this time slot 302 is identical with current time slots 202 length in the TD-SCDMA frame structure, i.e. 864 chips.When special carrier,, DwPTS 203, protection interval 204 and UpPTS 205 can be merged in addition, constitute a crack in short-term owing to be downlink business entirely; Its structure is identical with special carrier time slot 302, but data division is shorter, and slot length is 352 chips.
PreAmble 309 is a kind of of reference symbol.Reference symbol is known in transmitting terminal institute's transmission content and radiation pattern at receiving terminal.UE compares the reference symbol that receives and known content, and then realizes channel estimating.If reference symbol is very near with the data distance that will receive, then can be similar to the channel status of deriving data division with channel estimating to reference symbol.
In early stage that mobile TV class broadcasting service is carried out because the restriction of program source etc. may all not send program on the time slots.If on these have the time slot of program, do not send random data, then can utilize the pilot frequency sequence on these time slots to carry out channel estimating, improve signal receiving performance; But wasted the energy of base station, and may bring interference for other system.If on these have the time slot of program, do not send signal, then can save the energy of base station, and reduce the interference that brings for other system; But can't utilize the pilot frequency sequence on these time slots to carry out channel estimating, reduce signal receiving performance.
Therefore, for the mobile TV class broadcasting service on the special carrier, the present frame structure that proposes of TD-SCDMA system also needs to be optimized and improves.
Summary of the invention
The object of the present invention is to provide the base station transmission method in the communication system, become different time slot formats to transmit time slot configuration, in the receptivity that keeps having improved under the constant prerequisite of spectrum efficiency terminal, reduced the complexity of terminal receiver, method is simple and be easy to realize.
Another object of the present invention is to provide the base station device in the communication system, become different time slot formats to transmit time slot configuration, in the receptivity that keeps having improved under the constant prerequisite of spectrum efficiency terminal, reduced the complexity of terminal receiver, method is simple and be easy to realize.
Technical scheme of the present invention is: the present invention proposes the base station transmission method in a kind of communication system, utilize first time slot format, second time slot format and the 3rd time slot format to transmit, this base station transmission method comprises:
What (1) need to obtain the data of emission and regulation by the system upper strata is the launch time of unit with the time slot;
(2) whole transmission time slots is configured to the 3rd time slot format, reference symbol and data division all do not transmit in the 3rd time slot format;
(3) will exist the time slot configuration of valid data to be this first time slot format, this first time slot format comprises reference symbol and data division, and all transmits in this reference symbol and this data division;
(4) the data related time-slot with the 3rd time slot format is configured to this second time slot format, and this second time slot format only comprises reference symbol, and the data division of corresponding first time slot format does not transmit, and only partly transmits in this reference symbol;
(5) launch the signal of each frame respectively according to the time slot format of configuration.
Base station transmission method in the above-mentioned communication system, wherein, the data related time-slot of the 3rd time slot format in the step (4) is the needed time slot of smoothing algorithm in the channel estimating, being in having the time slot of valid data, is the reference position with the reference symbol sequence, data division, only exist under the configuration prerequisite of the 3rd time slot format, one side does not have pilot tone, N time slot of corresponding no pilot tone one end, and wherein the N do as one likes can be determined in emulation.
Base station transmission method in the above-mentioned communication system, wherein, the configuration of second time slot format in the step (4) further comprises:
(a) timeslot number of acquisition first time slot format, its number is M;
(b) initialization n=1;
(c) judge n〉M, if flow process finishes, otherwise enters step (d);
(d) judge before the reference symbol that is configured to first time slot format whether data are arranged, if then enter step (e), otherwise skips steps (e) directly enters step (f);
(e) with time slot n-N, n-(N-1) ..., n-1 is as the data related time-slot, and wherein the N do as one likes can be determined in emulation;
(f) judge after the reference symbol that is configured to first time slot format whether data are arranged, if then enter step (g), otherwise skips steps (g) directly enters step (h);
(g) with time slot n+N, n+ (N-1) ..., n+1 is as the data related time-slot;
(h) n increases progressively 1, returns step (c).
Base station transmission method in the above-mentioned communication system, wherein, this reference symbol is positioned at the centre of time slot.
Base station transmission method in the above-mentioned communication system, wherein, this reference symbol is positioned at the time slot head.
Base station transmission method in the above-mentioned communication system, wherein, this reference symbol is positioned at the time slot tail.
Base station transmission method in the above-mentioned communication system, wherein, this reference symbol is striden two time slots, and the reference symbol first half of the reference symbol latter half of last time slot and back one time slot is spliced into a long continuous reference symbol.
Based on above-mentioned method, the invention allows for the base station device in a kind of communication system, utilize first time slot format, second time slot format and the 3rd time slot format to transmit, this base station device comprises:
The upper strata receiver module, what to need the data of emission and regulation from the upper strata is the launch time of unit with the time slot;
The time slot format configuration module receives this of information of this upper strata receiver module output launch time, the configuration time slot format, and this module comprises:
First dispensing unit is configured to the 3rd time slot format with whole transmission time slots, and reference symbol and data division all do not transmit in the 3rd time slot format;
Second dispensing unit will exist the time slot configuration of valid data to be this first time slot format, and this first time slot format comprises reference symbol and data division, and all transmits in this reference symbol and this data division;
The 3rd dispensing unit is configured to this second time slot format with the data related time-slot of the 3rd time slot format, and this second time slot format only comprises reference symbol, and the data division of corresponding first time slot format does not transmit, and only partly transmits in this reference symbol;
Transmitter module receives data to be launched and launch time that this upper strata receiver module is exported, receives the time slot format information of this time slot format configuration module, the output wireless signal.
Base station device in the above-mentioned communication system, wherein, the data related time-slot of the 3rd time slot format in this time slot format configuration module is the needed time slot of smoothing algorithm in the channel estimating, being in having the time slot of valid data, is the reference position with the reference symbol sequence, data division, only exist under the configuration prerequisite of the 3rd time slot format, one side does not have pilot tone, N time slot of corresponding no pilot tone one end, and wherein the N do as one likes can be determined in emulation.
Base station device in the above-mentioned communication system, wherein, the 3rd dispensing unit is for non-attachable training sequence, with the data slot reference symbol is the center, prolonging N the time slot that data direction spreads is the data related time-slot, for attachable training sequence, be the center with the data slot reference symbol, prolonging N time slot and the corresponding time slot that can splice that data direction spreads is the data related time-slot.
Base station device in the above-mentioned communication system, wherein, this reference symbol is positioned at the centre of time slot.
Base station device in the above-mentioned communication system, wherein, this reference symbol is positioned at the time slot head.
Base station device in the above-mentioned communication system, wherein, this reference symbol is positioned at the time slot tail.
Base station device in the above-mentioned communication system, wherein, this reference symbol is striden two time slots, and the reference symbol first half of the reference symbol latter half of last time slot and back one time slot is spliced into a long continuous reference symbol.
The present invention contrasts prior art following beneficial effect: the present invention is by being configured to transmission time slot different time slot formats, and launches the signal of each frame respectively according to the time slot format that is disposed.Make under the prerequisite that does not influence systematic function, do not launch or transmit less, save system energy consumption, and reduced the interference of system simultaneously other system for idle time slot.
Description of drawings
Fig. 1 is the schematic diagram of existing cell mobile communication systems.
Fig. 2 is the schematic diagram of the frame structure of existing TD-SCDMA system.
Fig. 3 is the schematic diagram of the special carrier structure of time slot of existing TD-SCDMA system.
Fig. 4 A is the schematic diagram of first embodiment of communication system time slot format of the present invention.
Fig. 4 B is the schematic diagram of second embodiment of communication system time slot format of the present invention.
Fig. 4 C is the schematic diagram of the 3rd embodiment of communication system time slot format of the present invention.
Fig. 4 D is the schematic diagram of the 4th embodiment of communication system time slot format of the present invention.
Fig. 5 is the flow chart of the preferred embodiment of base station transmission method in the communication system of the present invention.
Fig. 6 is the sub-process figure of the base station transmission method of Fig. 5 embodiment.
Fig. 7 is the module map of communication system base station emitter of the present invention.
Fig. 8 is the submodule figure of the time slot format configuration module of Fig. 7 embodiment.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiments of the invention are that example is come descriptor frame structure and method of reseptance and device with the TD-SCDMA system all, those skilled in the art as can be known, the TD-SCDMA here only is an example, and frame structure of the present invention and method of reseptance thereof and device extend to any communication system.
Fig. 5 shows the flow process of the preferred embodiment of base station transmission method in the communication system of the present invention.Seeing also Fig. 5, is the detailed description to each process step in the base station transmission method below.
Step S10: what need to obtain the data of emission and regulation by the system upper strata is the launch time of unit with the time slot.
Step S12: with the whole time slot configuration in the frame is the 3rd time slot format, and reference symbol and data division all do not transmit in the 3rd time slot format.
The 3rd time slot format specifically sees also the 3rd time slot format among Fig. 4 A～4D.
Step S14: will exist the time slot (promptly needing to launch the time slot of data) of valid data to be configured to first time slot format in the frame.This first time slot format comprises reference symbol and data division, and all transmits in reference symbol and data division.
First time slot format specifically sees also first time slot format among Fig. 4 A～4D.In Fig. 4 A, reference symbol promptly is in the middle of the time slot between two data divisions.In Fig. 4 B, reference symbol is positioned at the time slot head, promptly before the data division.In Fig. 4 C, reference symbol is positioned at the time slot afterbody, promptly after the data division.In Fig. 4 D, reference symbol is striden two time slots, and the reference symbol first half of the reference symbol latter half of last time slot and back one time slot is spliced into a long continuous reference symbol.
Step S16: the data related time-slot of the 3rd time slot format is configured to second time slot format, and this second time slot format only comprises reference symbol, and the data division of corresponding first time slot format does not transmit, and only partly transmits in reference symbol.
Second time slot format specifically sees also second time slot format among Fig. 4 A～4D.So-called data related time-slot is meant in having the time slot of valid data, be the reference position with the reference sequences, data division, and under the prerequisite that only has the 3rd time slot format, a side does not have pilot tone, N time slot of corresponding no pilot tone one end.Wherein N is determined by system emulation, generally is not more than half of a radio frames/wireless sub-frame length.
The data related time-slot is the needed time slot of doing in the channel estimating of smoothing algorithm.The channel smoothing algorithm is that the comprehensive computing of the channel parameter in several time slots (calculating acquisition by reference sequences) is obtained.Only there to be a data time slot is example, and for the situation of reference sequences in the centre, the original channel that only can obtain this time slot reference sequences with reference to the time slot part is estimated.Need to suppose the original channel estimated value of 2 time slots could obtain the required channel smooth value of data demodulates,, need the original channel of the time slot in front to estimate that promptly the time slot in front is the data related time-slot then for the data division of data slot front.Equally, for the data division of back, promptly the time slot in back is the data related time-slot.For non-attachable training sequence, be the center with the data slot reference symbol generally, prolonging N the time slot that data direction spreads is the data related time-slot; For attachable training sequence, be the center with the data slot reference symbol generally, prolonging N time slot and the corresponding time slot that can splice that data direction spreads is the data related time-slot.
Step S18: the signal of launching each frame according to the time slot format of configuration respectively.
How the key of said method is the judgment data related time-slot it to be configured to second time slot format.Fig. 6 shows the flow process of judgment data related time-slot, sees also Fig. 6, is the detailed description to each process step in the determination methods below.
Step S160: the timeslot number that obtains first time slot format: S
1, S
2... S
M
Step S161: initialization n makes n=1.
Step S162: judge n〉M, flow process finishes if condition is set up then, otherwise enters step S163.
Step S163: judge before the reference symbol that is configured to first time slot format whether data are arranged.If data arranged then enter step S164, if do not have data then skips steps S164 directly enters step S165.
Step S164: with time slot n-N, n-(N-1) ..., n-1 is as the data related time-slot, and wherein the N do as one likes can be determined in emulation, and receiver needs the reference symbol/pilot tone of N time slot to finish the efficient system estimation.
Step S165: judge after the reference symbol that is configured to first time slot format whether data are arranged.If data arranged then enter step S166, if do not have data then skips steps S166 directly enters step S167.
Step S166: with time slot n+N, n+ (N-1) ..., n+1 is as the data related time-slot.
Step S167:n increases progressively 1, even also n=n+1.Return step S162.
Based on the above embodiments, at N=1, each frame exists 6 time slots and the 2nd time slot to exist under effective data conditions, respectively with the time slot format of Fig. 4 A～4D as the configuration time slot, the configuring condition of time slot is shown.
With Fig. 4 A is example, and reference symbol is positioned in the middle of the time slot.Step S12 according to Fig. 5, time slot 1～6 all is configured to the 3rd time slot format, S14 the 2nd time slot configuration that will launch data becomes first time slot format set by step then, at last according to step S16 (that is flow process of Fig. 6), gets the 1st time slot and becomes second time slot format with the 3rd time slot configuration.The time slot format that configuration is finished sees the following form.
| The 2nd time slot format | The 1st time slot format | The 2nd time slot format | The 3rd time slot format | The 3rd time slot format | The 3rd time slot format |
With Fig. 4 B is example, and reference symbol is positioned at the time slot head.Step S12 according to Fig. 5, time slot 1～6 all is configured to the 3rd time slot format, the 2nd time slot configuration that to launch data according to step S14 becomes first time slot format then, according to step S16 (that is flow process of Fig. 6), gets the 3rd time slot configuration and becomes second time slot format at last.The time slot format that configuration is finished sees the following form.
| The 3rd time slot format | The 1st time slot format | The 2nd time slot format | The 3rd time slot format | The 3rd time slot format | The 3rd time slot format |
With Fig. 4 C is example, and reference symbol is positioned at the time slot tail.Step S12 according to Fig. 5, time slot 1～6 all is configured to the 3rd time slot format, the 2nd time slot configuration that to launch data according to step S14 becomes first time slot format then, according to step S16 (that is flow process of Fig. 6), gets the 1st time slot configuration and becomes second time slot format at last.The time slot format that configuration is finished sees the following form.
| The 2nd time slot format | The 1st time slot format | The 3rd time slot format | The 3rd time slot format | The 3rd time slot format | The 3rd time slot format |
With Fig. 4 D is example, and reference symbol is crossed over two time slots, and this is a sliceable structure of time slot, and the pilot tone latter half of previous time slot and the first half of a back time slot can be spliced into a long continuous pilot tone.Step S12 according to Fig. 5, time slot 1～6 all is configured to the 3rd time slot format, the 2nd time slot configuration that to launch data according to step S14 becomes first time slot format then, at last according to step S16 (that is flow process of Fig. 6), gets the 1st time slot and becomes second time slot format with the 3rd time slot configuration.The time slot format that configuration is finished sees the following form.
| The 2nd time slot format | The 1st time slot format | The 2nd time slot format | The 3rd time slot format | The 3rd time slot format | The 3rd time slot format |
Based on above-mentioned base station transmission method, the present invention has also disclosed the base station device in the communication system.See also Fig. 7, base station device 10 comprises: upper strata receiver module 11, time slot format configuration module 12 and transmitter module 13.What upper strata receiver module 11 to need the data of emission and regulation from the upper strata is the launch time of unit with the time slot.Time slot format configuration module 12 receives the information of the launch time of upper strata receiver module 11 outputs, the configuration time slot format.Transmitter module 13 receives the data to be launched and the launch time of upper strata receiver module 11 outputs, the time slot format information of receiving slot format configuration module 12 outputs, output wireless signal.
Time slot configuration module 12 is divided into first dispensing unit 120, second dispensing unit 121 and the 3rd dispensing unit 122 as shown in Figure 8.First dispensing unit 120 is configured to the 3rd time slot format with whole transmission time slots, and reference symbol and data division all do not transmit in the 3rd time slot format, specifically sees also the 3rd time slot format among Fig. 4 A～4D.
Will there be time slot configuration first time slot format of valid data in second dispensing unit 121, and first time slot format comprises reference symbol and data division, and all transmits in reference symbol and data division.First time slot format can be that the reference symbol shown in Fig. 4 A is positioned in the middle of the time slot, can be that reference symbol shown in Fig. 4 B is positioned at the time slot head, can be that reference symbol shown in Fig. 4 C is positioned at the time slot tail, also can be that reference symbol shown in Fig. 4 D is striden two time slots, the reference symbol first half of the reference symbol latter half of last time slot and back one time slot be spliced into a long continuous reference symbol.
The 3rd dispensing unit 122 is configured to second time slot format with the data related time-slot of the 3rd time slot format, and this second time slot format only comprises reference symbol, and the data division of corresponding first time slot format does not transmit, and only partly transmits in reference symbol.The data related time-slot of the 3rd time slot format is the needed time slot of smoothing algorithm in the channel estimating, be in having the time slot of valid data, with the reference symbol sequence is the reference position, data division, only exist under the configuration prerequisite of second time slot format, one side does not have pilot tone, N time slot of corresponding no pilot tone one end, and wherein the N do as one likes can be determined in emulation.
The 3rd dispensing unit 122 is the center for non-attachable training sequence with the data slot reference symbol, prolongs N time slot that data direction the spreads data related time-slot as the 3rd time slot format.For attachable training sequence, be the center with the data slot reference symbol, prolong N time slot that data direction spreads and the corresponding time slot that can splice data related time-slot as the 3rd time slot format.Specifically, the judgment mode of 122 pairs of data related time-slots of the 3rd dispensing unit does not repeat them here as shown in Figure 6.
The foregoing description provides to those of ordinary skills and realizes or use of the present invention; those of ordinary skills can be under the situation that does not break away from invention thought of the present invention; the foregoing description is made various modifications or variation; thereby protection scope of the present invention do not limit by the foregoing description, and should be the maximum magnitude that meets the inventive features that claims mention.
Claims (14)
1, the base station transmission method in a kind of communication system utilizes first time slot format, second time slot format and the 3rd time slot format to transmit, and this base station transmission method comprises:
What (1) need to obtain the data of emission and regulation by the system upper strata is the launch time of unit with the time slot;
(2) whole transmission time slots is configured to the 3rd time slot format, reference symbol and data division all do not transmit in the 3rd time slot format;
(3) will exist the time slot configuration of valid data to be this first time slot format, this first time slot format comprises reference symbol and data division, and all transmits in this reference symbol and this data division;
(4) the data related time-slot with the 3rd time slot format is configured to this second time slot format, and this second time slot format only comprises reference symbol, and the data division of corresponding first time slot format does not transmit, and only partly transmits in this reference symbol;
(5) launch the signal of each frame respectively according to the time slot format of configuration.
2, the base station transmission method in the communication system according to claim 1, it is characterized in that, the data related time-slot of the 3rd time slot format in the step (4) is the needed time slot of smoothing algorithm in the channel estimating, being in having the time slot of valid data, is the reference position with the reference symbol sequence, data division, only exist under the configuration prerequisite of the 3rd time slot format, one side does not have pilot tone, N time slot of corresponding no pilot tone one end, and wherein the N do as one likes can be determined in emulation.
3, the base station transmission method in the communication system according to claim 2 is characterized in that, the configuration of second time slot format in the step (4) further comprises:
(a) timeslot number of acquisition first time slot format, its number is M;
(b) initialization n=1;
(c) judge n〉M, if flow process finishes, otherwise enters step (d);
(d) judge before the reference symbol that is configured to first time slot format whether data are arranged, if then enter step (e), otherwise skips steps (e) directly enters step (f);
(e) with time slot n-N, n-(N-1) ..., n-1 is as the data related time-slot, and wherein the N do as one likes can be determined in emulation;
(f) judge after the reference symbol that is configured to first time slot format whether data are arranged, if then enter step (g), otherwise skips steps (g) directly enters step (h);
(g) with time slot n+N, n+ (N-1) ..., n+1 is as the data related time-slot;
(h) n increases progressively 1, returns step (c).
According to the base station transmission method in each described communication system in the claim 1～3, it is characterized in that 4, this reference symbol is positioned at the centre of time slot.
According to the base station transmission method in each described communication system in the claim 1～3, it is characterized in that 5, this reference symbol is positioned at the time slot head.
According to the base station transmission method in each described communication system in the claim 1～3, it is characterized in that 6, this reference symbol is positioned at the time slot tail.
7, according to the base station transmission method in each described communication system in the claim 1～3, it is characterized in that, this reference symbol is striden two time slots, and the reference symbol first half of the reference symbol latter half of last time slot and back one time slot is spliced into a long continuous reference symbol.
8, the base station device in a kind of communication system utilizes first time slot format, second time slot format and the 3rd time slot format to transmit, and this base station device comprises:
The upper strata receiver module, what to need the data of emission and regulation from the upper strata is the launch time of unit with the time slot;
The time slot format configuration module receives this of information of this upper strata receiver module output launch time, the configuration time slot format, and this module comprises:
First dispensing unit is configured to the 3rd time slot format with whole transmission time slots, and reference symbol and data division all do not transmit in the 3rd time slot format;
Second dispensing unit will exist the time slot configuration of valid data to be this first time slot format, and this first time slot format comprises reference symbol and data division, and all transmits in this reference symbol and this data division;
The 3rd dispensing unit is configured to this second time slot format with the data related time-slot of the 3rd time slot format, and this second time slot format only comprises reference symbol, and the data division of corresponding first time slot format does not transmit, and only partly transmits in this reference symbol;
Transmitter module receives data to be launched and launch time that this upper strata receiver module is exported, receives the time slot format information of this time slot format configuration module, the output wireless signal.
9, the base station device in the communication system according to claim 8, it is characterized in that, the data related time-slot of the 3rd time slot format in this time slot format configuration module is the needed time slot of smoothing algorithm in the channel estimating, being in having the time slot of valid data, is the reference position with the reference symbol sequence, data division, only exist under the configuration prerequisite of the 3rd time slot format, one side does not have pilot tone, N time slot of corresponding no pilot tone one end, and wherein the N do as one likes can be determined in emulation.
10, the base station device in the communication system according to claim 9, it is characterized in that, the 3rd dispensing unit is for non-attachable training sequence, with the data slot reference symbol is the center, prolonging N the time slot that data direction spreads is the data related time-slot, for attachable training sequence, be the center with the data slot reference symbol, prolonging N time slot and the corresponding time slot that can splice that data direction spreads is the data related time-slot.
11, according to Claim 8 the base station device～10 in each described communication system is characterized in that this reference symbol is positioned at the centre of time slot.
12, according to Claim 8 the base station device～10 in each described communication system is characterized in that this reference symbol is positioned at the time slot head.
13, according to Claim 8 the base station device～10 in each described communication system is characterized in that this reference symbol is positioned at the time slot tail.
14, according to Claim 8 the base station device～10 in each described communication system, it is characterized in that, this reference symbol is striden two time slots, and the reference symbol first half of the reference symbol latter half of last time slot and back one time slot is spliced into a long continuous reference symbol.
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| CN106936493A (en) * | 2015-12-29 | 2017-07-07 | 联芯科技有限公司 | The method and apparatus of adaptive matching networks time slot format |
| WO2018202012A1 (en) * | 2017-05-02 | 2018-11-08 | 华为技术有限公司 | Method for determining cell, terminal device and network device |
| CN110602784A (en) * | 2018-06-12 | 2019-12-20 | 中国移动通信有限公司研究院 | Uplink and downlink configuration method, base station and terminal |
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| US6574211B2 (en) * | 1997-11-03 | 2003-06-03 | Qualcomm Incorporated | Method and apparatus for high rate packet data transmission |
| CN1129333C (en) * | 2001-06-29 | 2003-11-26 | 华为技术有限公司 | Method for enlarging radius if society for GSM communication system |
| JP3975069B2 (en) * | 2001-10-25 | 2007-09-12 | 株式会社エヌ・ティ・ティ・ドコモ | Radio base station and radio communication control method |
| DE10241675A1 (en) * | 2002-09-09 | 2004-03-25 | Infineon Technologies Ag | Synchronization method for mobile radio receiver in mobile communications system has received data flow filtered and processed for determining time slot boundaries |
| CN1315345C (en) * | 2004-08-23 | 2007-05-09 | 大唐移动通信设备有限公司 | Method and apparatus for controlling emitting time slot of base station in radio communication system |
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| CN106936493A (en) * | 2015-12-29 | 2017-07-07 | 联芯科技有限公司 | The method and apparatus of adaptive matching networks time slot format |
| CN106936493B (en) * | 2015-12-29 | 2018-12-28 | 辰芯科技有限公司 | The method and apparatus of adaptive matching networks time slot format |
| WO2018202012A1 (en) * | 2017-05-02 | 2018-11-08 | 华为技术有限公司 | Method for determining cell, terminal device and network device |
| CN110602784A (en) * | 2018-06-12 | 2019-12-20 | 中国移动通信有限公司研究院 | Uplink and downlink configuration method, base station and terminal |
| CN113965239A (en) * | 2021-12-06 | 2022-01-21 | 青岛歌尔智能传感器有限公司 | Radio frequency signal transmission control method and device and radio frequency system |
| CN113965239B (en) * | 2021-12-06 | 2024-04-26 | 青岛歌尔智能传感器有限公司 | Radio frequency signal transmission control method and device and radio frequency system |
| CN116208461A (en) * | 2023-05-05 | 2023-06-02 | 上海星思半导体有限责任公司 | Parameter estimation method, device, electronic equipment and readable storage medium |
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