CN101166057A - TD-SCDMA system uplink synchronous control method and device - Google Patents
TD-SCDMA system uplink synchronous control method and device Download PDFInfo
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- CN101166057A CN101166057A CNA2006101137878A CN200610113787A CN101166057A CN 101166057 A CN101166057 A CN 101166057A CN A2006101137878 A CNA2006101137878 A CN A2006101137878A CN 200610113787 A CN200610113787 A CN 200610113787A CN 101166057 A CN101166057 A CN 101166057A
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Abstract
This invention provides an up-synchronous control method and a device in a TD-SCDMA system, in which, a terminal response base station configures time premises volume for each up time slot according to synchronous offset cw generated by channel impulse response of a signal with the best time slot and the time premised volume of a first up time slot so as to increase up synchronous control frequency of up multi-time slot services and solves the problem of inaccurate configuration of the volume, besides, in HSDPA service, this invention configures up time premises volume of DPCH or HS-SICH by synchronous offset cw sent by the terminal response base station to avoid complicated algorithm of the premises volume and inaccurate configuration for them.
Description
Technical field
The present invention relates to the communications field, relate in particular to ascending synchronous control method and device in a kind of TD-SCDMA system.
Background technology
At Time Division-Synchronous Code Division Multiple Access (TD-SCDMA, Time-Division Synchronization CodeDivision-Multiple-Access) in the system, because the independent respectively control of the Timing Advance of up each ascending time slot of multislot services, the Timing Advance that the different time-gap configuration is different is so terminal realizes comparatively complexity.In addition, when terminal does not have upstream data or data not full, only send data at the part ascending time slot, the base station just can not produce simultaneous bias (SS according to the time slot that does not have upstream data like this, synchronousshift) command word, thus the configuration error of the up Timing Advance of terminal caused.
High speed downlink packet inserts (HSDPA, High Speed Downlink Package Access) professional following special physical channel (DPCH, Dedicated Physical Channel) and shared information channel (SICH, Shared Information Channel) the also independent respectively control of up Timing Advance, work as synchronization control channel (SCCH according to agreement, when Synchronisation Control Channel) discontinuous, the up Timing Advance of SICH can respond the SS command word of DPCH.At present, still there is not clear and definite algorithm for the SICH uplink synchronous control of HSDPA.
In the HSDPA business, the SS command word that SICH uplink synchronous response SCCH carries, the SCCH/SICH scheduling is discontinuous, the up Timing Advance control frequency of SICH is very low, according to agreement when SCCH is discontinuous, the SS command word of DPCH is followed in the SICH response, but follows the SS command word of DPCH can not be applicable to the control of SICH Timing Advance under a lot of situation, and this causes the up Timing Advance control of SICH mistake.
Summary of the invention
The technical problem to be solved in the present invention is to provide ascending synchronous control method and the device in a kind of TD-SCDMA system, can simplify up multislot services up Timing Advance configuration complexity and improve accuracy.
The technical scheme that realizes the object of the invention is as follows:
Ascending synchronous control method in a kind of TD-SCDMA system, the simultaneous bias order word that the terminal response base station sends is each ascending time slot lead setup time according to the Timing Advance of first ascending time slot.
Preferably, be each ascending time slot lead setup time according to following steps:
Whether the channel estimation window number of judging different time-gap is identical, if identical, then the up Timing Advance of each time slot is configured to the Timing Advance of first ascending time slot; If different, then the up Timing Advance of each time slot Timing Advance that is configured to first ascending time slot increases corresponding deviant.
Preferably, described deviant is Cir time slot desired value poor of the channel impulse response time slot desired value of first ascending time slot and n ascending time slot.
Preferably, the Cir time slot desired value of described n ascending time slot obtains according to following steps:
Preferably, described simultaneous bias order word is to produce according to the channel impulse response of the best time slot of signal.
Preferably, the best time slot of described signal is the signal to noise ratio of base station selected all ascending time slots or the big time slot of signal power sign indicating number of reception.
Uplink synchronous control device in a kind of TD-SCDMA system comprises:
First judging unit is used to respond the simultaneous bias order word that the base station sends, and judges whether the channel estimation window number of different time-gap is identical;
First dispensing unit is used for the judged result according to first judging unit feedback, is each ascending time slot lead setup time according to the Timing Advance of first ascending time slot.
Preferably, described first dispensing unit is each ascending time slot lead setup time in the following manner:
The identical judged result of channel estimation window number of described first judging unit feedback different time-gap, then first dispensing unit is configured to the up Timing Advance of each time slot the Timing Advance of first ascending time slot;
The channel estimation window number judged result inequality of described first judging unit feedback different time-gap, then first dispensing unit increases corresponding deviant with the Timing Advance that the up Timing Advance of each time slot is configured to first ascending time slot.
Preferably, described deviant is Cir time slot desired value poor of the channel impulse response Cir time slot desired value of first ascending time slot and n ascending time slot.
Preferably, the Cir time slot desired value of described n ascending time slot obtains in the following manner:
Preferably, described simultaneous bias order word is to be produced by the channel impulse response of base station according to the best time slot of signal.
Preferably, the best time slot of described signal is the signal to noise ratio of base station selected all ascending time slots or the big time slot of signal power sign indicating number of reception.
In addition, the present invention is also further at the HSDPA business, provide the ascending synchronous control method in a kind of TD-SCDMA system, the simultaneous bias order word that the terminal response base station sends, the up Timing Advance of configuration following special physical channel DPCH or shared information channel HS-SICH.
Preferably, if only follow DPCH, then described simultaneous bias order word is to produce according to the channel impulse response of following DPCH.
Preferably, if having only HS-SICH, then described simultaneous bias order word is to produce according to the channel impulse response of HS-SICH.
Preferably, if follow DPCH and HS-SICH simultaneously, then described simultaneous bias order word is to produce according to the big channel impulse response of the signal to noise ratio of DPCH or HS-SICH; Perhaps produce according to the big channel impulse response of the received signal power sign indicating number of DPCH or HS-SICH.
Preferably, be DPCH and HS-SICH collocating uplink Timing Advance according to following steps:
Whether judgement follows DPCH identical with the channel estimation window number of HS-SICH place time slot and correspondence thereof, if HS-SICH and follow DPCH at same ascending time slot, perhaps but the channel estimation window number at same ascending time slot both place time slots is not identical, and then the up Timing Advance of HS-SICH is configured to follow the Timing Advance of DPCH;
The channel estimation window number at same ascending time slot and both place time slots is not different if HS-SICH is with following DPCH, and then the Timing Advance with HS-SICH is configured to follow the Timing Advance of DPCH to increase corresponding deviant.
Preferably, described deviant is to follow Cir time slot desired value poor of the Cir time slot desired value of DPCH place ascending time slot and HS-SICH place ascending time slot.
Uplink synchronous control device in a kind of TD-SCDMA system comprises:
Second judging unit is used to respond the simultaneous bias order word that the base station sends, and whether judgement follows DPCH identical with the channel estimation window number of HS-SICH place time slot and correspondence thereof;
Second dispensing unit is used for the judged result according to judging unit, the up Timing Advance of configuration following special physical channel DPCH or shared information channel HS-SICH.
Preferably, under the situation of only following DPCH, described simultaneous bias order word is that the base station produces according to the channel impulse response of following DPCH.
Preferably, having only under the situation of HS-SICH, described simultaneous bias order word is the channel impulse response generation of base station according to HS-SICH.
Preferably, have at the same time under the situation of following DPCH and HS-SICH, described simultaneous bias order word is that the base station produces according to the big channel impulse response of the signal to noise ratio of DPCH or HS-SICH.
Preferably, have at the same time under the situation of following DPCH and HS-SICH, described simultaneous bias order word is that the base station produces according to the big channel impulse response of the received signal power sign indicating number of DPCH or HS-SICH.
Preferably, described second dispensing unit is DPCH and HS-SICH collocating uplink Timing Advance in the following manner:
The described second judgment unit judges HS-SICH and follow DPCH at same ascending time slot, perhaps but the channel estimation window number at same ascending time slot both place time slots is not identical, and then described second dispensing unit is configured to the up Timing Advance of HS-SICH to follow the Timing Advance of DPCH;
The channel estimation window number at same ascending time slot and both place time slots is not different with following DPCH for the described second judgment unit judges HS-SICH, and then described second dispensing unit is configured to follow the Timing Advance of DPCH to increase corresponding deviant the Timing Advance of HS-SICH.
Preferably, described deviant is to follow Cir time slot desired value poor of the Cir time slot desired value of DPCH place ascending time slot and HS-SICH place ascending time slot.
Compared with prior art, technical scheme provided by the invention has following beneficial effect:
1, each ascending time slot of multislot services is independently controlled, compare with existing multislot services, the present invention is by in up multislot services, terminal is according to the simultaneous bias order word of base station according to the channel impulse response generation of the best time slot of signal, for each ascending time slot Timing Advance is configured with reference to first ascending time slot Timing Advance, thereby can improve the uplink synchronous control frequency of up multislot services, also solve the up Timing Advance of up multislot services and disposed inaccurate problem, reduced the phase mutual interference of same ascending time slot interchannel.
2, in addition, it is complicated and dispose inaccurate problem that the present invention has also solved in the HSDPA business the up Timing Advance algorithm of HS-SICH, thereby improved HS-SICH and the uplink synchronous control frequency of following DPCH, reduced the phase mutual interference of same ascending time slot interchannel.
Below in conjunction with the drawings and specific embodiments the present invention is further described.
Description of drawings
Fig. 1 is the up multislot services of a present invention base station uplink synchronous control flow chart;
Fig. 2 is the up multislot services terminal of a present invention uplink synchronous control flow chart;
Fig. 3 is a HSDPA business base station uplink synchronous control flow chart of the present invention;
Fig. 4 is a HSDPA service terminal uplink synchronous control flow chart of the present invention;
Fig. 5 is the up multislot services uplink synchronous of a present invention control device block diagram;
Fig. 6 is the professional uplink synchronous control device of a HSDPA of the present invention block diagram.
Embodiment
The present invention is used for solving the TD-SCDMA system, up multislot services or HSDPA business, and the up Timing Advance of terminal configuration DPCH and SICH is realized complicated, the lower problem of makeing mistakes easily, adjust frequency.Described in detail below by specific embodiment.
For up multislot services, respectively from base station and two angle explanations of terminal uplink synchronous control procedure.
As shown in Figure 1, up multislot services base station uplink synchronous control procedure is as follows:
Up multislot services is set up in step 101, base station;
Step 102, base station are according to the signal to noise ratio (SNR of all ascending time slots, Signal to Noise Ratio) or the signal power sign indicating number (RSCP that receives, received signal code power) select the time slot that upward signal is best, the upward signal that SNR or RSCP are bigger is better usually; Channel impulse response according to this ascending time slot produces the SS command word then;
Step 103, base station send the SS command word that produces by DPCH.
As shown in Figure 2, up multislot services terminal uplink synchronous control procedure is as follows:
The SS command word that step 202, each subframe response base station of terminal send by DPCH;
If the midamble_k of step 204 different time-gap is identical, then the up Timing Advance of each time slot is configured to the Timing Advance of first ascending time slot;
If step 205 different time-gap midamble_k difference then disposes n ascending time slot Timing Advance and is:
TAn＝TA1+(Cir_target(1)-Cir_target(n))
Wherein: TA1 represents the Timing Advance of first ascending time slot, and TAn represents the Timing Advance of n ascending time slot, channel impulse response (Cir) the time slot desired value of n ascending time slot of Cir_target (n) expression.
As shown in Figure 5, comprise at end side uplink synchronous control device: first judging unit 51, and first dispensing unit 52, wherein:
Whether the midamble_k that judges different time-gap by described first judging unit 51 is identical, if identical then this judged result is fed back to first dispensing unit 52, the up Timing Advance of each time slot is configured to the Timing Advance of first ascending time slot; If different time-gap midamble_k difference then feeds back to this judged result first dispensing unit 52, dispose n ascending time slot Timing Advance and be:
TAn＝TA1+(Cir_target(1)-Cir_target(n))
Wherein: TA1 represents the Timing Advance of first ascending time slot, and TAn represents the Timing Advance of n ascending time slot, channel impulse response (Cir) the time slot desired value of n ascending time slot of Cir_target (n) expression.
Need to prove:
The length of n ascending time slot channel estimation window can be obtained by following formula:
Wherein: function
For rounding downwards;
N ascending time slot CIR desired value is:
Wherein: function
For rounding up.
Such as: if midamble_k=8 then calculates Cir_target=6chip;
If midamble_k=16, then Cir_target=3chip.
In addition, at the HSDPA business, respectively from base station and two angle explanations of terminal uplink synchronous control procedure.
As shown in Figure 3, HSDPA business base station uplink synchronous control procedure is as follows:
The HSDPA business is set up in step 301, base station;
If certain subframe uplink is only followed DPCH, then produce the SS command word according to the channel impulse response of following DPCH;
If certain subframe uplink has only HS-SICH, then the channel impulse response according to HS-SICH produces the SS command word;
If the existing DPCH of following of certain subframe uplink has HS-SICH again, then must select a SNR or the high channel of RSCP, according to the channel impulse response generation SS command word of this channel;
As shown in Figure 4, HSDPA service terminal uplink synchronous control procedure is as follows:
If the descending DPCH that only follows of certain subframe then adjusts Timing Advance according to the SS command word of following DPCH;
If have only HS-SCCH, then the SS command word of carrying according to HS-SCCH is adjusted Timing Advance;
If the existing DPCH of following of certain subframe has HS-SCCH again, then the soft-decision result according to two SS command words adjusts Timing Advance, can improve the Synchronization Control frequency of following DPCH and HS-SICH like this;
If HS-SICH and follow DPCH at same ascending time slot or not at same ascending time slot, but HS-SICH is identical with the midamble_k that follows DPCH place time slot, then changes step 404 over to;
If HS-SICH then changes step 405 over to follow DPCH not different at same ascending time slot and this two time slot time slot midamble_k;
The up Timing Advance of step 404, HS-SICH is configured to follow the Timing Advance of DPCH;
TA
SICH＝TA
DPCH+(Cir_target(DPCH)-Cir_target(SICH))
Wherein: TA
SICHThe Timing Advance of expression HS-SICH, TA
DPCHThe Timing Advance of DPCH is followed in expression, and the Cir time slot desired value of DPCH place ascending time slot is followed in Cir_target (DPCH) expression, the Cir time slot desired value of Cir_target (SICH) expression HS-SICH place ascending time slot.
As shown in Figure 6, comprise at end side uplink synchronous control device: second judging unit 61, and second dispensing unit 62, wherein:
The simultaneous bias order word that second judging unit, 61 response base stations send is if the descending DPCH that only follows of certain subframe then adjusts Timing Advance according to the SS command word of following DPCH; If have only HS-SCCH, then the SS command word of carrying according to HS-SCCH is adjusted Timing Advance; If the existing DPCH of following of certain subframe has HS-SCCH again, then the soft-decision result according to two SS command words adjusts Timing Advance, can improve the Synchronization Control frequency of following DPCH and HS-SICH like this;
And judge whether HS-SICH is identical with the midamble_k that follows DPCH place time slot:
If HS-SICH and follow DPCH at same ascending time slot or not at same ascending time slot, but HS-SICH is identical with the midamble_k that follows DPCH place time slot, and then the up Timing Advance of HS-SICH is configured to follow the Timing Advance of DPCH;
If HS-SICH then disposes the SICH Timing Advance to be with to follow DPCH not different at same ascending time slot and this two time slot time slot midamble_k:
TA
SICH＝TA
DPCH+(Cir_target(DPCH)-Cir_target(SICH))
Wherein: TA
SICHThe Timing Advance of expression HS-SICH, TA
DPCHThe Timing Advance of DPCH is followed in expression, and the Cir time slot desired value of DPCH place ascending time slot is followed in Cir_target (DPCH) expression, the Cir time slot desired value of Cir_target (SICH) expression HS-SICH place ascending time slot.
Above-described embodiment of the present invention does not constitute the qualification to protection range of the present invention.Any any modification of being done within the spirit and principles in the present invention, be equal to and replace and improvement etc., all should be included within the claim protection range of the present invention.
Claims (26)
1. the ascending synchronous control method in the TD-SCDMA system is characterized in that, the simultaneous bias order word that the terminal response base station sends is each ascending time slot lead setup time according to the Timing Advance of first ascending time slot.
2. the method for claim 1 is characterized in that, is each ascending time slot lead setup time according to following steps:
Whether the channel estimation window number of judging different time-gap is identical, if identical, then the up Timing Advance of each time slot is configured to the Timing Advance of first ascending time slot; If different, then the up Timing Advance of each time slot Timing Advance that is configured to first ascending time slot increases corresponding deviant.
3. method as claimed in claim 2 is characterized in that, described deviant is Cir time slot desired value poor of the channel impulse response Cir time slot desired value of first ascending time slot and n ascending time slot.
4. method as claimed in claim 3 is characterized in that, the Cir time slot desired value of described n ascending time slot obtains according to following steps:
5. the method for claim 1 is characterized in that, described simultaneous bias order word is to produce according to the channel impulse response of the best time slot of signal.
6. method as claimed in claim 5 is characterized in that, the best time slot of described signal is the signal to noise ratio of base station selected all ascending time slots or the big time slot of signal power sign indicating number of reception.
7. the uplink synchronous control device in the TD-SCDMA system is characterized in that, comprising:
First judging unit is used to respond the simultaneous bias order word that the base station sends, and judges whether the channel estimation window number of different time-gap is identical;
First dispensing unit is used for the judged result according to first judging unit feedback, is each ascending time slot lead setup time according to the Timing Advance of first ascending time slot.
8. device as claimed in claim 7 is characterized in that, described first dispensing unit is each ascending time slot lead setup time in the following manner:
The identical judged result of channel estimation window number of described first judging unit feedback different time-gap, then first dispensing unit is configured to the up Timing Advance of each time slot the Timing Advance of first ascending time slot;
The channel estimation window number judged result inequality of described first judging unit feedback different time-gap, then first dispensing unit increases corresponding deviant with the Timing Advance that the up Timing Advance of each time slot is configured to first ascending time slot.
9. device as claimed in claim 8 is characterized in that, described deviant is Cir time slot desired value poor of the channel impulse response Cir time slot desired value of first ascending time slot and n ascending time slot.
10. device as claimed in claim 9 is characterized in that, the Cir time slot desired value of described n ascending time slot obtains in the following manner:
11. device as claimed in claim 7 is characterized in that, described simultaneous bias order word is to be produced by the channel impulse response of base station according to the best time slot of signal.
12. device as claimed in claim 11 is characterized in that, the best time slot of described signal is the signal to noise ratio of base station selected all ascending time slots or the big time slot of signal power sign indicating number of reception.
13. the ascending synchronous control method in the TD-SCDMA system, it is characterized in that, in the HSDPA business, the simultaneous bias order word that the terminal response base station sends, the up Timing Advance of configuration following special physical channel DPCH or shared information channel HS-SICH.
14. method as claimed in claim 13 is characterized in that, if only follow DPCH, then described simultaneous bias order word is to produce according to the channel impulse response of following DPCH.
15. method as claimed in claim 13 is characterized in that, if having only HS-SICH, then described simultaneous bias order word is to produce according to the channel impulse response of HS-SICH.
16. method as claimed in claim 13 is characterized in that, if follow DPCH and HS-SICH simultaneously, then described simultaneous bias order word is to produce according to the big channel impulse response of the signal to noise ratio of DPCH or HS-SICH.
17. method as claimed in claim 13 is characterized in that, if follow DPCH and HS-SICH simultaneously, then described simultaneous bias order word is to produce according to the big channel impulse response of the received signal power sign indicating number of DPCH or HS-SICH.
18., it is characterized in that, be DPCH and HS-SICH collocating uplink Timing Advance according to following steps as claim 14 or 15 or 16 or 17 described methods:
Whether judgement follows DPCH identical with the channel estimation window number of HS-SICH place time slot and correspondence thereof, if HS-SICH and follow DPCH at same ascending time slot, perhaps but the channel estimation window number at same ascending time slot both place time slots is not identical, and then the up Timing Advance of HS-SICH is configured to follow the Timing Advance of DPCH;
The channel estimation window number at same ascending time slot and both place time slots is not different if HS-SICH is with following DPCH, and then the Timing Advance with HS-SICH is configured to follow the Timing Advance of DPCH to increase corresponding deviant.
19. method as claimed in claim 18 is characterized in that, described deviant is to follow Cir time slot desired value poor of the Cir time slot desired value of DPCH place ascending time slot and HS-SICH place ascending time slot.
20. the uplink synchronous control device in the TD-SCDMA system is characterized in that, in the HSDPA business, comprising:
Second judging unit is used to respond the simultaneous bias order word that the base station sends, and whether judgement follows DPCH identical with the channel estimation window number of HS-SICH place time slot and correspondence thereof;
Second dispensing unit is used for the judged result according to second judging unit, the up Timing Advance of configuration following special physical channel DPCH or shared information channel HS-SICH.
21. device as claimed in claim 20 is characterized in that, under the situation of only following DPCH, described simultaneous bias order word is that the base station produces according to the channel impulse response of following DPCH.
22. device as claimed in claim 20 is characterized in that, is having only under the situation of HS-SICH, described simultaneous bias order word is the channel impulse response generation of base station according to HS-SICH.
23. device as claimed in claim 20 is characterized in that, has at the same time under the situation of following DPCH and HS-SICH, described simultaneous bias order word is that the base station produces according to the big channel impulse response of the signal to noise ratio of DPCH or HS-SICH.
24. device as claimed in claim 20 is characterized in that, has at the same time under the situation of following DPCH and HS-SICH, described simultaneous bias order word is that the base station produces according to the big channel impulse response of the received signal power sign indicating number of DPCH or HS-SICH.
25., it is characterized in that described second dispensing unit is DPCH and HS-SICH collocating uplink Timing Advance in the following manner as claim 21 or 22 or 23 or 24 described devices:
The described second judgment unit judges HS-SICH and follow DPCH at same ascending time slot, perhaps but the channel estimation window number at same ascending time slot both place time slots is not identical, and then described second dispensing unit is configured to the up Timing Advance of HS-SICH to follow the Timing Advance of DPCH;
The channel estimation window number at same ascending time slot and both place time slots is not different with following DPCH for the described second judgment unit judges HS-SICH, and then described second dispensing unit is configured to follow the Timing Advance of DPCH to increase corresponding deviant the Timing Advance of HS-SICH.
26. device as claimed in claim 25 is characterized in that, described deviant is to follow Cir time slot desired value poor of the Cir time slot desired value of DPCH place ascending time slot and HS-SICH place ascending time slot.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010105568A1 (en) * | 2009-03-17 | 2010-09-23 | 松下电器产业株式会社 | Method and device for adjusting timing advance in uplink multiple points reception |
| WO2010145158A1 (en) * | 2009-06-30 | 2010-12-23 | 中兴通讯股份有限公司 | Method and device for uplink synchronization control |
| CN101674658B (en) * | 2008-09-12 | 2011-11-30 | 中兴通讯股份有限公司 | Application method of space division multiplexing of high-speed downlink packet access system |
| CN101594672B (en) * | 2008-05-30 | 2012-02-01 | 电信科学技术研究院 | Method, system and device for maintaining uplink synchronization and method for sending data |
| WO2015176320A1 (en) * | 2014-05-23 | 2015-11-26 | 华为技术有限公司 | Information transmission method, base station and user equipment |
| CN107079478A (en) * | 2014-11-07 | 2017-08-18 | 高通股份有限公司 | Up-link for dynamic Time Division duplex system controls resource allocation |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1744463A (en) * | 2004-08-31 | 2006-03-08 | 西门子（中国）有限公司 | Up closed ring synchronous control method in time division-synchronous CDMA accessing system |
| CN100440761C (en) * | 2005-11-03 | 2008-12-03 | 中兴通讯股份有限公司 | Uplink synchronous allocation of high speed shared information channel and its treatment method |
| CN100388807C (en) * | 2005-11-16 | 2008-05-14 | 中兴通讯股份有限公司 | Closed-loop uplink synchronization controlling method in wireless communication system |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101594672B (en) * | 2008-05-30 | 2012-02-01 | 电信科学技术研究院 | Method, system and device for maintaining uplink synchronization and method for sending data |
| CN101674658B (en) * | 2008-09-12 | 2011-11-30 | 中兴通讯股份有限公司 | Application method of space division multiplexing of high-speed downlink packet access system |
| WO2010105568A1 (en) * | 2009-03-17 | 2010-09-23 | 松下电器产业株式会社 | Method and device for adjusting timing advance in uplink multiple points reception |
| CN102356678A (en) * | 2009-03-17 | 2012-02-15 | 松下电器产业株式会社 | Method and device for adjusting timing advance in uplink multiple points reception |
| WO2010145158A1 (en) * | 2009-06-30 | 2010-12-23 | 中兴通讯股份有限公司 | Method and device for uplink synchronization control |
| CN101938826A (en) * | 2009-06-30 | 2011-01-05 | 中兴通讯股份有限公司 | Uplink synchronization control method and device for long term evolution system |
| WO2015176320A1 (en) * | 2014-05-23 | 2015-11-26 | 华为技术有限公司 | Information transmission method, base station and user equipment |
| US9907102B2 (en) | 2014-05-23 | 2018-02-27 | Huawei Technologies Co., Ltd. | Method for transmitting information, base station, and user equipment |
| CN107079478A (en) * | 2014-11-07 | 2017-08-18 | 高通股份有限公司 | Up-link for dynamic Time Division duplex system controls resource allocation |
| US11153898B2 (en) | 2014-11-07 | 2021-10-19 | Qualcomm Incorporated | Uplink control resource allocation for dynamic time-division duplex systems |
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| CN101166057B (en) | 2012-04-18 |
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