CN102546083A - Uplink antenna selection device, wireless terminal using same and uplink antenna selection method - Google Patents
Uplink antenna selection device, wireless terminal using same and uplink antenna selection method Download PDFInfo
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- CN102546083A CN102546083A CN201010603197XA CN201010603197A CN102546083A CN 102546083 A CN102546083 A CN 102546083A CN 201010603197X A CN201010603197X A CN 201010603197XA CN 201010603197 A CN201010603197 A CN 201010603197A CN 102546083 A CN102546083 A CN 102546083A
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Abstract
The embodiment of the invention discloses an uplink antenna selection device capable of improving the robustness of an uplink, a wireless terminal using the uplink antenna selection device and an uplink antenna selection method. The device is used for selecting a plurality of uplink antennae, and comprises a selection unit and a control unit, wherein the control unit indicates the selection unit to randomly determine the uplink antennae at an uplink antenna selection interval of preset time length. By the technical scheme in the embodiment of the invention, the random determination of the uplink antennae can be realized, and can improve the robustness of the uplink compared with the regular use of a certain antenna.
Description
Technical field
The present invention relates to communication technical field, more particularly, relate to uplink antenna choice device, the wireless and uplink antenna system of selection of device.
Background technology
In the LTE (Long Term Evolution, Long Term Evolution) of 3GPP (Third generation partnership project, third generation partner program) technology, two uplink antennas of operated by rotary motion in the up transmission link.At present, the R8 agreement of LTE regulation, when carrying out up transmission, when high level configuration antenna selection function started, which antenna transmission data the base station can use through control signaled wireless terminal.And when high level does not dispose this function on, then regulation is not made in the selection of transmitting antenna, generally, the fixing antenna that uses wherein of acquiescence can lose the robustness and the robustness of up link like this.
Summary of the invention
In view of this, embodiment of the invention purpose is to provide uplink antenna choice device, the wireless and uplink antenna system of selection of device of the robustness that can improve up link and robustness.
For realizing above-mentioned purpose, the embodiment of the invention provides following technical scheme:
An aspect according to the embodiment of the invention provides a kind of uplink antenna choice device, is used to realize that said device comprises selected cell and control unit to the choosing of many uplink antennas, wherein:
Said control unit is once chosen uplink antenna when presetting duration on distance, indicate said selected cell to confirm uplink antenna at random.
An aspect according to the embodiment of the invention provides a kind of wireless terminal that uses above-mentioned uplink antenna choice device.
According to another aspect of the embodiment of the invention, a kind of uplink antenna system of selection is provided, be used to realize that said method comprises to the choosing of many uplink antennas: on distance, once choose uplink antenna when preset duration, confirm uplink antenna at random.
Can find out that from above-mentioned technical scheme the technical scheme that the embodiment of the invention provided can realize using a certain antenna to compare the confirming at random of uplink antenna with fixing, can improve the robustness and the robustness of up link.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is up transmission link structure sketch map;
Fig. 2 is the uplink antenna choice device structural representation that the embodiment of the invention provided;
Fig. 3 is another structural representation of uplink antenna choice device that the embodiment of the invention provided.
Embodiment
For quote and know for the purpose of, the technical term that hereinafter uses, write a Chinese character in simplified form or abridge and sum up as follows:
3GPP:Third generation partnership project, third generation partner program;
LTE:Long Term Evolution, Long Term Evolution;
HSPA+:High Speed Packet Access plus, the enhanced high-speed Packet Service;
Robustness: the robustness of system, it is the key of system survival under unusual and dangerous situation;
Frequency hopping: a kind of spread spectrum that utilizes the carrier wave saltus step to realize video stretching is widely used in the jamproof communication system.
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
Along with the realization of enhancement techniques such as HSPA+, the 3GPP wireless access technology will keep competitiveness in the coming years.In order to guarantee following 10 years even remained ahead in longer time that the 3GPP wireless access technology needs the process of a LTE to guarantee its competitiveness.
The block diagram of up transmission link is as shown in Figure 1, operated by rotary motion two (shown in Fig. 1 is the structure of two uplink antennas) or uplink antennas more than two in this link.At present, the R8 agreement of LTE regulation, when carrying out up transmission, when high level configuration antenna selection function started, which antenna transmission data the base station can use through control signaled wireless terminal.And when high level does not dispose this function on, then regulation is not made in the selection of transmitting antenna, generally, the fixing antenna that uses wherein of acquiescence can lose the robustness and the robustness of up link like this.
In view of this, the embodiment of the invention provides a kind of robustness of up link and uplink antenna choice device of robustness of improving, to realize choosing many uplink antennas in the up link.
Fig. 2 shows a kind of structure of said apparatus, comprises selected cell 1 and control unit 2, wherein:
Above-mentioned definite at random, can realize that promptly control unit 2 can send switching command and give selected cell 1 by selected cell 1, selected cell 1 independently carries out confirming at random to uplink antenna after receiving this instruction.Certainly, also can directly send more detailed instruction by control unit 2 and give selected cell 1, comprise the information of selected uplink antenna in this instruction, selected cell 1 is specified according to this and is selected uplink antenna.Which kind of mode no matter is as long as can realize the selection at random of uplink antenna.
Can find out that from above-mentioned technical scheme the technical scheme that the embodiment of the invention provided can realize using a certain antenna to compare the confirming at random of uplink antenna with fixing, can improve the robustness and the robustness of up link.
In other embodiment of the present invention, said apparatus also can comprise monitoring means, and this monitoring means sends enabled instruction monitoring when need sending data to control unit, and the indication control unit is accomplished the definite at random of uplink antenna with the selected cell co-ordination.
Need to prove; Above-mentioned " confirming " to uplink antenna; Different definition is arranged under the different application scene, itself be at above-mentioned uplink antenna under the application scenarios that can send data mode, above-mentioned " confirming " is the justice of " directly choosing "; And close or during resting state when uplink antenna is in, above-mentioned " confirming " is specially the justice of " choose the back and start ".
Above-mentioned LTE is merely one of application scenarios that the embodiment of the invention enumerates.In fact, as long as have the application scenarios of many uplink antennas, the technical scheme that all can use all embodiment of the present invention to be provided is carried out choosing of antenna.
In other embodiment of the present invention, referring to Fig. 3, above-mentioned control unit 2 can comprise timer 21, random sequence generator 22 and processing unit 23, wherein:
When processing unit 23 reached above-mentioned preset duration in timer 21 each timing, according to the preset relation of random number and antenna, indication selected cell 1 was chosen uplink antenna.
Also promptly, timer 21 begins countdown from preset duration, and to processing unit 23 instruction of giving notice, processing unit 23 promptly indicates selected cell 1 to choose uplink antenna according to above-mentioned random sequence when counting zero.
Perhaps, timer 21 can be started from scratch and carried out timing, and to processing unit 23 instruction of giving notice, processing unit 23 promptly indicates selected cell 1 to choose uplink antenna according to above-mentioned random sequence when counting preset duration.
It should be noted that above-mentioned random sequence generator 21 every separated Preset Times produce a random sequence, submit to processing unit 23 so that it chooses uplink antenna according to random sequence indication selected cell 1 with it.Also can, arrival initiatively obtain random sequence to above-mentioned random sequence generator 21 when presetting duration by processing unit 23.
In addition, can comprise a random number in random sequence generator 21 each random sequences that produce, also can comprise a plurality of random numbers, have random number to use as long as can satisfy when each needs carry out day line options.
In other embodiment of the present invention, the preset duration among above-mentioned all embodiment can be the integral multiple of time slot duration, and can be divided exactly by the subframe duration, also can be the integral multiple of subframe duration.
Concerning LTE, a sub-frame comprises two time slots.Therefore, above-mentioned preset duration can equate with the time slot duration, also can equate with the subframe duration.For other technologies, the integral multiple of the optional minimum time unit that sends of fetching data once is as preset duration, such as, when minimum time unit that data are once sent is 5us, choose 5,10,15us etc. is as preset duration, do not give unnecessary details at this.
In LTE, often use frequency hopping, for example conversion between frequency hopping or subframe between time slot.In other embodiment of the present invention, to also deciding the opportunity that uplink antenna is selected according to above-mentioned frequency hopping opportunity.For example, if frequency hopping between time slot, antenna chooses the right moment and is conversion between time slot; If frequency hopping between subframe, then antenna chooses the right moment and is conversion between subframe; In addition, when not adopting frequency hopping, then antenna chooses the right moment and also can be conversion between subframe, and the data of up link transmission will produce the effect of space diversity like this.
Corresponding with it, the embodiment of the invention also discloses the wireless terminal that uses the device of arbitrary embodiment among above-mentioned all embodiment.Wireless terminal specifically can be mobile phone, Vehicle mounted station, wireless data terminal unit (DTU), fixed station (fixed station is used in the place that island, automobile, train, steamer etc. are inconvenient to connect up more), GPS navigation appearance etc.Because wireless terminal is different, so the connected mode of itself and said apparatus is also ever-changing, and those skilled in the art can carry out flexible design according to the prior art environment, give unnecessary details no longer one by one at this.
With the mobile phone is example, and fading effect is one of principal element that influences its radio communication quality.In the mobile communication environment of reality, mobile phone usually is operated in architecture ensemble or other the complicated geographical environments, and the speed and the direction that move are any.Behind the propagation path of the signal that mobile phone sends through emission, scattering etc., the signal amplitude that arrives receiving terminal random fluctuation can occur and change, and forms multipath fading, and possibly further cause deep fade.This deep fade can reduce obtainable available signal power and increase the influence of disturbing; Make the reception signal of receiver produce distortion, waveform broadening, waveform is overlapping and distortion; Even cause the output of communication system demodulator a large amount of mistakes to occur, so that can not communicate by letter fully.
It is unpractical utilizing methods such as strengthening transmitting power, increase antenna size and height to overcome above-mentioned deep fade, and can cause the interference to other radio station, generally can adopt space diversity to reduce the probability of deep fade.
Because the technical scheme that present embodiment provided has the effect of space diversity, so it also has positive effect on the probability that reduces deep fade, raising radio communication quality.
Corresponding with it, the embodiment of the invention also provides a kind of uplink antenna system of selection to realize that said method may further comprise the steps at least to the choosing of many uplink antennas:
On distance, once choose uplink antenna when presetting duration, confirm uplink antenna at random.
In other embodiment of the present invention, said method also can comprise the step that produces random sequence, comprises a random number in the random sequence wherein at least;
And corresponding, the concrete implementation of above-mentioned " confirming uplink antenna at random " is: the preset relation according to said random number and antenna is chosen uplink antenna.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.For the disclosed device of embodiment, because it is corresponding with the embodiment disclosed method, so description is fairly simple, relevant part is partly explained referring to method and is got final product.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method; Be to instruct relevant hardware to accomplish through computer program; Described program can be stored in the computer read/write memory medium; Said program can comprise the flow process like the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (9)
1. a uplink antenna choice device is characterized in that, is used to realize that said device comprises selected cell and control unit to the choosing of many uplink antennas, wherein:
Said control unit is once chosen uplink antenna when presetting duration on distance, indicate said selected cell to confirm uplink antenna at random.
2. device as claimed in claim 1 is characterized in that said control unit comprises timer, random sequence generator and processing unit, wherein:
Said random sequence generator is used to produce random sequence, comprises a random number in the said random sequence at least;
When said processing unit reaches said preset duration in said timer timing,, indicate said selected cell to choose uplink antenna according to the preset relation of said random number and antenna.
3. according to claim 1 or claim 2 device is characterized in that said preset duration is the integral multiple of time slot duration, and can be divided exactly by the subframe duration.
4. according to claim 1 or claim 2 device is characterized in that said preset duration is the integral multiple of subframe duration.
5. the wireless terminal of each described uplink antenna choice device among use such as the claim 1-4.
6. a uplink antenna system of selection is characterized in that, is used to realize that said method comprises to the choosing of many uplink antennas:
On distance, once choose uplink antenna when presetting duration, confirm uplink antenna at random.
7. method as claimed in claim 6 is characterized in that, also comprises, produces random sequence, comprises a random number in the said random sequence at least;
The said concrete implementation of definite uplink antenna at random is: the preset relation according to said random number and antenna is chosen uplink antenna.
8. like claim 6 or 7 described methods, it is characterized in that said preset duration is the integral multiple of time slot duration, and can be divided exactly by the subframe duration.
9. like claim 6 or 7 described methods, it is characterized in that said preset duration is the integral multiple of subframe duration.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016000460A1 (en) * | 2014-06-30 | 2016-01-07 | 华为技术有限公司 | Mobile terminal antenna controlling method and mobile terminal |
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| CN1474608A (en) * | 2002-08-05 | 2004-02-11 | 深圳市中兴通讯股份有限公司 | Signal transmitting and receiving method based on time-division duplexing in radio communication system |
| EP1772974A2 (en) * | 2005-10-05 | 2007-04-11 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting signal in a communication system using a plurality of antennas |
| CN101527618A (en) * | 2009-03-19 | 2009-09-09 | 中兴通讯股份有限公司 | Multi-antenna emission method and device |
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- 2010-12-23 CN CN201010603197XA patent/CN102546083A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1474608A (en) * | 2002-08-05 | 2004-02-11 | 深圳市中兴通讯股份有限公司 | Signal transmitting and receiving method based on time-division duplexing in radio communication system |
| EP1772974A2 (en) * | 2005-10-05 | 2007-04-11 | Samsung Electronics Co., Ltd. | Apparatus and method for transmitting signal in a communication system using a plurality of antennas |
| CN101527618A (en) * | 2009-03-19 | 2009-09-09 | 中兴通讯股份有限公司 | Multi-antenna emission method and device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016000460A1 (en) * | 2014-06-30 | 2016-01-07 | 华为技术有限公司 | Mobile terminal antenna controlling method and mobile terminal |
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Application publication date: 20120704 |