CN101420263A - Data information sending method and apparatus thereof - Google Patents
Data information sending method and apparatus thereof Download PDFInfo
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- CN101420263A CN101420263A CNA2007101762479A CN200710176247A CN101420263A CN 101420263 A CN101420263 A CN 101420263A CN A2007101762479 A CNA2007101762479 A CN A2007101762479A CN 200710176247 A CN200710176247 A CN 200710176247A CN 101420263 A CN101420263 A CN 101420263A
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- time slot
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
- H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
- H04B7/2643—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using time-division multiple access [TDMA]
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Abstract
The present invention provides a data information sending method and a device thereof. The method comprises that when a signal transmitting terminal transmits data frames carrying data information, the data frame comprises at least one downlink time slot, a protection time slot and at least one uplink time slot in order; the signal transmitting terminal transmits synchronizing information at the start part of the downlink time slot, or at the end part of the downlink time slot that is not adjacent to the uplink time slot, or between two adjacent downlink time slots. According to the present invention, under the condition that protection time slot expense and other resource consumption are not increased, interference to the uplink receiving signals of local cell base station from other base stations when power increase to synchronizing symbols is needed is reduced, requirements to time slot length protection are reduced, therefore, system expense is reduced.
Description
Technical field
The present invention relates to a kind of wireless communication technology, relate in particular to a kind of data information sending method and device thereof.
Background technology
In present TDD (Time Division Duplex, time division duplex) mobile communication system, has only protection (GP) conduct protection interval at interval between descending time slot and the ascending time slot.As shown in Figure 1, usually, first time slot in the Frame is a descending time slot, is followed successively by synchronizing symbol and GP thereafter, for ascending time slot (a plurality of ascending time slots can be arranged), may also have the several downlink time slot afterwards behind the GP.
In the TDD system; because the same carrier frequency of up-downgoing Channel Sharing; so the downstream signal of other base station can arrive base station, user place through postponing, if time delay surpasses the protection slot length, then the downstream signal of other base station can produce the up received signal of this sub-district and disturb.Especially in some cases in order to guarantee the correct reception of synchronizing symbol, need to promote the transmitting power of synchronizing symbol, this will aggravate the interference of base station to the base station.
For fear of this interference, bigger protection interval can be provided, but can bring extra Radio Resource expense so again, reduce the efficient of system.
Summary of the invention
Embodiments of the invention have disclosed a kind of data information sending method and device thereof, to be implemented under the situation that does not increase overhead and resource consumption, reduce the interference of other base station to the up received signal of this cell base station.
The data information sending method that the embodiment of the invention discloses comprises:
When the Frame of data message was carried in the signal sending end transmission, described Frame comprised at least one descending time slot, protection time slot successively, and at least one ascending time slot;
Described signal sending end is in the beginning part of described descending time slot, or with the ending of the non-conterminous descending time slot of described ascending time slot, or between two adjacent descending time slots, send synchronizing information.
The data message dispensing device that the embodiment of the invention discloses comprises:
Module is set, is used to be provided with Frame, described Frame comprises at least one descending time slot, protection time slot successively, and at least one ascending time slot; And in the beginning part of described descending time slot, or with the ending of the non-conterminous descending time slot of described ascending time slot, or between two adjacent descending time slots, the carrying synchronizing information is set;
Sending module is used to send the described Frame of setting.
The above embodiment of the present invention; by when sending Frame; with descending time slot; protection time slot and ascending time slot send successively; and synchronizing information is carried on the beginning part of descending time slot; or be carried on ending with the non-conterminous descending time slot of ascending time slot; perhaps be carried between two adjacent descending time slots; the transmission that makes synchronizing information is as much as possible away from ascending time slot; thereby under the situation that does not increase protection time slot expense and other resource consumption; can be reduced in the time of to carry out power ascension to synchronizing symbol other base station to the interference of the up received signal of this cell base station; reduction is to the requirement of protection slot length, thus the expense of reduction system.
Description of drawings
Fig. 1 shows the structural representation of Frame in the prior art;
Fig. 2 shows the structure of time slot figure of the Frame of the embodiment of the invention one;
Fig. 3 shows the structure of time slot figure of the Frame of the embodiment of the invention two;
Fig. 4 shows the structure of time slot figure of the Frame of the embodiment of the invention three;
Fig. 5 shows the structure of time slot figure of the Frame of the embodiment of the invention four;
Fig. 6 shows the structure of time slot figure of the Frame of the embodiment of the invention five;
Fig. 7 shows the structure of time slot figure of the Frame of the embodiment of the invention six.
Embodiment
Understand and realization the present invention the existing embodiments of the invention of describing in conjunction with the accompanying drawings for the ease of persons skilled in the art.
Embodiment one
Present embodiment is by changing the arrangement position of ascending time slot and descending time slot, and the carrying position of synchronizing symbol (synchronizing symbol may be made up of one or more OFDM symbols), make synchronizing symbol away from ascending time slot, reduce synchronizing symbol because the interference that power ascension produced to ascending time slot.
The structure of time slot of the Frame in the present embodiment as shown in Figure 2, each solid line lattice is represented a time slot among the figure.Comprise a plurality of descending time slots, a protection time slot and a plurality of ascending time slot in the Frame shown in Figure 2 successively, a time slot that is used to carry synchronizing signal is arranged behind first descending time slot.The length of protection time slot can be identical with the length of protection time slot in the existing system.The time slot that is used for carrying synchronizing symbol can carry primary synchronization channel information and auxiliary synchronization channel information.As can be seen from Figure 2, synchronizing symbol is far away apart from ascending time slot, during between be separated with a plurality of descending time slots, therefore, also not too large to the interference of ascending time slot even if under the situation that required power promotes.
For the further resource utilization of raising system, can be in the time slot of carrying synchronizing symbol, utilize other the data of resource bearing beyond the resource that synchronizing signal takies, as user data or control information etc.
The data-signal transmitting terminal sends after according to above-mentioned frame structure construction data frame.
Embodiment two
Present embodiment is by changing the arrangement position of ascending time slot and descending time slot, and the carrying position of synchronizing symbol (synchronizing symbol may be made up of one or more OFDM symbols), make synchronizing symbol away from ascending time slot, reduce synchronizing symbol because the interference that power ascension produced to ascending time slot.
The structure of time slot of the Frame in the present embodiment as shown in Figure 3, each the solid line lattice among the figure are represented a time slot.Comprise a plurality of descending time slots, a protection time slot and a plurality of ascending time slot in the Frame shown in Figure 3 successively.The length of protection time slot can be identical with the length of protection time slot in the existing system.Wherein, the dotted line in first descending time slot is represented the position of synchronizing symbol.As seen from Figure 3, synchronizing symbol takies the back tail position of first descending time slot, is followed successively by several downlink time slot, protection time slot and several ascending time slots afterwards.The position of carrying synchronizing signal can be last or a plurality of data symbol of this time slot in first descending time slot, or near one or more data symbols of this time slot rearmost position.For example, if first descending time slot can carry N data symbol, individual and N-1 the data symbol of then N data symbol, or N, or N-1 and N-2 data symbol are used for carrying synchronizing symbol.The time slot that is used for carrying synchronizing symbol can carry primary synchronization channel information and auxiliary synchronization channel information.As can be seen from Figure 3, synchronizing symbol is far away apart from ascending time slot, during between be separated with a plurality of descending time slots, therefore, also not too large to the interference of ascending time slot even if under the situation that required power promotes.
For the further resource utilization of raising system, can be in the data symbol of carrying synchronizing symbol, utilize other the data of resource bearing beyond the resource that synchronizing signal takies, as user data or control information etc.
The data-signal transmitting terminal sends after according to above-mentioned frame structure construction data frame.
Embodiment three
Present embodiment is by changing the arrangement position of ascending time slot and descending time slot, and the carrying position of synchronizing symbol (synchronizing symbol may be made up of one or more OFDM symbols), make synchronizing symbol away from ascending time slot, reduce synchronizing symbol because the interference that power ascension produced to ascending time slot.
The structure of time slot schematic diagram of the Frame in the present embodiment as shown in Figure 4, each the solid line lattice among the figure are represented a time slot.Comprise a plurality of descending time slots, a protection time slot and a plurality of ascending time slot in the Frame shown in Figure 4 successively.The length of protection time slot can be identical with the length of protection time slot in the existing system.Dotted line among the figure in second descending time slot is represented the position of synchronizing symbol.As seen from Figure 4, synchronizing symbol takies the first place of second descending time slot and puts, and is followed successively by descending time slot afterwards, protection interval and ascending time slot.The position of carrying synchronizing signal can be the one or more data symbols that begin most of this time slot in second descending time slot, or near one or more data symbols of the starting position of this time slot.For example, if second descending time slot can carry N data symbol, the 1st data symbol then, or the 1st and the 2nd data symbol, or the 2nd and the 3rd data symbol are used for carrying synchronizing symbol.The time slot that is used for carrying synchronizing symbol can carry primary synchronization channel information and auxiliary synchronization channel information.
As can be seen from Figure 4, synchronizing symbol is far away apart from ascending time slot, during between be separated with a plurality of descending time slots, therefore, also not too large to the interference of ascending time slot even if under the situation that required power promotes.
For the further resource utilization of raising system, can be in the data symbol of carrying synchronizing symbol, utilize other the data of resource bearing beyond the resource that synchronizing signal takies, as user data or control information etc.
The data-signal transmitting terminal sends after according to above-mentioned frame structure construction data frame.
Embodiment four
Present embodiment is by changing the arrangement position of ascending time slot and descending time slot, and the carrying position of synchronizing symbol (synchronizing symbol may be made up of one or more OFDM symbols), make synchronizing symbol away from ascending time slot, reduce synchronizing symbol because the interference that power ascension produced to ascending time slot.
The structure of time slot schematic diagram of the Frame in the present embodiment as shown in Figure 5, each the solid line lattice among the figure are represented a time slot.Comprise a plurality of descending time slots, a protection time slot and a plurality of ascending time slot in the Frame shown in Figure 5 successively.The length of protection time slot can be identical with the length of protection time slot in the existing system.Dotted line in certain descending time slot among the figure is represented the position of synchronizing symbol.As seen from Figure 5, synchronizing symbol takies the tail position of certain descending time slot (but not being last descending time slot), is followed successively by descending time slot afterwards, protection interval and ascending time slot.The position of carrying synchronizing signal can be last one or more data symbols of this time slot in the descending time slot of this carrying synchronizing symbol, or near one or more data symbols of this time slot rearmost position.For example, if this descending time slot can carry N data symbol, individual and N-1 the data symbol of then N data symbol, or N, or N-1 and N-2 data symbol are used for carrying synchronizing symbol.The time slot that is used for carrying synchronizing symbol can carry primary synchronization channel information and auxiliary synchronization channel information.
As can be seen from Figure 5, synchronizing symbol is far away apart from ascending time slot, during between be separated with at least one descending time slot, therefore, also not too large to the interference of ascending time slot even if under the situation that required power promotes.
For the further resource utilization of raising system, can be in the data symbol of carrying synchronizing symbol, utilize other the data of resource bearing beyond the resource that synchronizing signal takies, as user data or control information etc.
The data-signal transmitting terminal sends after according to above-mentioned frame structure construction data frame.
Embodiment five
Present embodiment is by changing the arrangement position of ascending time slot and descending time slot, and the carrying position of synchronizing symbol (synchronizing symbol may be made up of one or more OFDM symbols), make synchronizing symbol away from ascending time slot, reduce synchronizing symbol because the interference that power ascension produced to ascending time slot.
The structure of time slot schematic diagram of the Frame in the present embodiment as shown in Figure 6, each the solid line lattice among the figure are represented a time slot.Comprise a plurality of descending time slots, a protection time slot and a plurality of ascending time slot in the Frame shown in Figure 6 successively.The length of protection time slot can be identical with the length of protection time slot in the existing system.Dotted line in certain descending time slot among the figure is represented the position of synchronizing symbol.As seen from Figure 6, synchronizing symbol takies the first place of certain descending time slot and puts, and is followed successively by descending time slot afterwards, protection interval and ascending time slot.The descending time slot of this carrying synchronizing signal can be any one descending time slot, comprises last descending time slot.The position of carrying synchronizing signal can be the one or more data symbols that begin most of this time slot in the descending time slot of this carrying synchronizing symbol, or near one or more data symbols of the starting position of this time slot.For example, if this descending time slot can carry N data symbol, the 1st data symbol then, or the 1st and the 2nd data symbol, or the 2nd and the 3rd data symbol are used for carrying synchronizing symbol.The time slot that is used for carrying synchronizing symbol can carry primary synchronization channel information and auxiliary synchronization channel information.
Therefore as can be seen from Figure 6, synchronizing symbol is far away apart from ascending time slot, can not be close to the protection time slot at least, and is even if under the situation that required power promotes, also not too large to the interference of ascending time slot.
For the further resource utilization of raising system, can be in the data symbol of carrying synchronizing symbol, utilize other the data of resource bearing beyond the resource that synchronizing signal takies, as user data or control information etc.
The data-signal transmitting terminal sends after according to above-mentioned frame structure construction data frame.
Embodiment six
Present embodiment is by changing the arrangement position of ascending time slot and descending time slot, and the carrying position of synchronizing symbol (synchronizing symbol may be made up of one or more OFDM symbols), make synchronizing symbol away from ascending time slot, reduce synchronizing symbol because the interference that power ascension produced to ascending time slot.
The structure of time slot schematic diagram of the Frame in the present embodiment as shown in Figure 7, each the solid line lattice among the figure are represented a time slot.Comprise a plurality of descending time slots, a protection time slot and a plurality of ascending time slot in the Frame shown in Figure 7 successively.The length of protection time slot can be identical with the length of protection time slot in the existing system.Dotted line in certain descending time slot among the figure is represented the position of synchronizing symbol.As seen from Figure 7, synchronizing symbol takies the head and the tail position of certain two adjacent descending time slot.The position of carrying synchronizing signal can be last one or more data symbols of previous descending time slot in these two adjacent descending time slots in the descending time slot of this carrying synchronizing symbol, and the one or more data symbols that begin most in the back descending time slot.If the carrying synchronizing signal needs a plurality of data symbols, these data symbols that then are used to carry synchronizing signal can be continuously arranged also can be discontinuous arrangement.
Therefore as can be seen from Figure 7, synchronizing symbol is far away apart from ascending time slot, can not be close to the protection time slot at least, and is even if under the situation that required power promotes, also not too large to the interference of ascending time slot.
For the further resource utilization of raising system, can be in the data symbol of carrying synchronizing symbol, utilize other the data of resource bearing beyond the resource that synchronizing signal takies, as user data or control information etc.
The data-signal transmitting terminal sends after according to above-mentioned frame structure construction data frame.
The embodiment of the invention also provides a kind of data message dispensing device, and this device comprises: module and sending module are set, wherein
Module is set, is used to be provided with Frame, this Frame comprises at least one descending time slot, protection time slot successively, and at least one ascending time slot; This is provided with module also in the beginning part of descending time slot, or with the ending of the non-conterminous descending time slot of ascending time slot, or between two adjacent descending time slots, the carrying synchronizing information is set;
Sending module is used to send the above-mentioned Frame that module is provided with that is provided with.
Module is set comprises that first is provided with submodule or second submodule is set of above-mentioned data message dispensing device.Wherein,
First is provided with submodule is used at beginning one or more data symbols partly of descending time slot the carrying synchronizing information being set.This submodule also is further used in the data symbol of carrying synchronizing information, and other data of resource bearing beyond the resource that takies with synchronizing information are as user data or control information.
Second is provided with submodule is used at one or more data symbols of the ending of descending time slot the carrying synchronizing information being set.This submodule also is further used in the data symbol of carrying synchronizing information, and other data of resource bearing beyond the resource that takies with synchronizing information are as user data or control information.
Module is set can comprises that also the 3rd is provided with submodule of above-mentioned data message dispensing device, the 3rd is provided with submodule is used for a time slot is set between two adjacent descending time slots, and this time slot is used to carry synchronizing information.The 3rd is provided with submodule also is further used in the time slot of carrying synchronizing information, and other data of resource bearing beyond the resource that takies with synchronizing information are as user data or control information etc.
The module that is provided with of above-mentioned data message dispensing device comprises that the 4th is provided with submodule, the 4th is provided with submodule is used for ending in the previous descending time slot of two adjacent descending time slots partial information in the carrying synchronizing information is set, and the beginning in a back descending time slot partly is provided with the remainder information of carrying synchronizing information.In specific implementation, the 4th is provided with submodule can be at one or more data symbols of the ending in the previous descending time slot, and carry synchronizing information in one or more data symbols of the part of the beginning in a back descending time slot.The 4th is provided with submodule also is further used in the data symbol of carrying synchronizing information, and other data of resource bearing beyond the resource that takies with synchronizing information are as user data or control information etc.
In sum, embodiments of the invention, the synchronizing symbol of system is sent away from ascending time slot as much as possible, under the condition that does not increase GP expense and other resource consumption, can be reduced in the time of to carry out power ascension to synchronizing symbol other base station to the interference of the up received signal of this cell base station, reduction is to the requirement of GP length, thus the expense of reduction system.
Though described the present invention by embodiment, those of ordinary skills know, without departing from the spirit and substance in the present invention, just can make the present invention that many distortion and variation are arranged, and scope of the present invention is limited to the appended claims.
Claims (17)
1, a kind of data information sending method is characterized in that, comprising:
When the Frame of data message was carried in the signal sending end transmission, described Frame comprised at least one descending time slot, protection time slot successively, and at least one ascending time slot;
Described signal sending end is in the beginning part of described descending time slot, or with the ending of the non-conterminous descending time slot of described ascending time slot, or between two adjacent descending time slots, send synchronizing information.
2, the method for claim 1, it is characterized in that, described signal sending end partly sends described synchronizing information in the beginning of described descending time slot, is specially: described signal sending end described synchronizing information of carrying in one or more data symbols of the beginning part of described descending time slot sends;
Described signal sending end sends described synchronizing information in the ending with the non-conterminous descending time slot of described ascending time slot, is specially: described signal sending end carries described synchronizing information and sends in one or more data symbols of the ending of described descending time slot.
3, method as claimed in claim 2 is characterized in that, described signal sending end in the described data symbol of the described synchronizing information of carrying, the resource that takies with described synchronizing information other data of resource bearing in addition.
4, the method for claim 1 is characterized in that, described signal sending end sends synchronizing information between two adjacent descending time slots, be specially:
Described signal sending end sends a time slot between described two adjacent descending time slots, described time slot carries described synchronizing information.
5, method as claimed in claim 4 is characterized in that, described signal sending end in the described time slot of the described synchronizing information of carrying, the resource that takies with described synchronizing information other data of resource bearing in addition.
6, the method for claim 1 is characterized in that, described signal sending end sends synchronizing information between two adjacent descending time slots, be specially:
Ending in the previous descending time slot of described signal sending end in described adjacent two descending time slots sends the partial information in the described synchronizing information, and the beginning in a back descending time slot partly sends the remainder information of described synchronizing information.
7, method as claimed in claim 6, it is characterized in that, the ending of described signal sending end in described descending time slot sends the partial information in the described synchronizing information, is specially: the partial information in one or more data symbols of the ending of described signal sending end in described descending time slot in the described synchronizing information of carrying also sends;
The beginning of described signal sending end in described descending time slot partly sends the remainder information in the described synchronizing information, is specially: the remainder information in one or more data symbols of the beginning part of described signal sending end in described descending time slot in the described synchronizing information of carrying also sends.
8, method as claimed in claim 7 is characterized in that, described signal sending end in the described data symbol of the described synchronizing information of carrying, the resource that takies with described synchronizing information other data of resource bearing in addition.
9, the method for claim 1 is characterized in that, described synchronizing information comprises main synchronizing information and auxilliary synchronizing information.
10, a kind of data message dispensing device is characterized in that, comprising:
Module is set, is used to be provided with Frame, described Frame comprises at least one descending time slot, protection time slot successively, and at least one ascending time slot; And in the beginning part of described descending time slot, or with the ending of the non-conterminous descending time slot of described ascending time slot, or between two adjacent descending time slots, the carrying synchronizing information is set;
Sending module is used to send the described Frame of setting.
11, data message dispensing device as claimed in claim 10 is characterized in that, the described module that is provided with comprises that first is provided with submodule or second submodule is set;
Described first is provided with submodule, is used at beginning one or more data symbols partly of described descending time slot the described synchronizing information of carrying being set;
Described second is provided with submodule, and the one or more data symbols that are used in the ending of described descending time slot are provided with the described synchronizing information of carrying.
12, data message dispensing device as claimed in claim 11, it is characterized in that, described first is provided with submodule or described second is provided with submodule and is further used for, in the described data symbol of the described synchronizing information of carrying, the resource that takies with described synchronizing information other data of resource bearing in addition.
13, data message dispensing device as claimed in claim 10 is characterized in that, the described module that is provided with comprises that the 3rd is provided with submodule;
The described the 3rd is provided with submodule, is used between described two adjacent descending time slots a time slot being set, and described time slot is used to carry described synchronizing information.
14, data message dispensing device as claimed in claim 13 is characterized in that, the described the 3rd is provided with submodule is further used in the described time slot of the described synchronizing information of carrying the resource that takies with described synchronizing information other data of resource bearing in addition.
15, data message dispensing device as claimed in claim 10 is characterized in that, the described module that is provided with comprises that the 4th is provided with submodule;
The described the 4th is provided with submodule, be used for ending in the previous descending time slot of described adjacent two descending time slots partial information in the described synchronizing information of carrying is set, the beginning in a back descending time slot partly is provided with the remainder information of the described synchronizing information of carrying.
16, data message dispensing device as claimed in claim 15, it is characterized in that, the described the 4th is provided with submodule is further used for, one or more data symbols of the ending in described previous descending time slot, and the described synchronizing information of carrying in one or more data symbols of the part of the beginning in a described back descending time slot.
17, data message dispensing device as claimed in claim 16, it is characterized in that, the described the 4th is provided with submodule is further used in the described data symbol of the described synchronizing information of carrying the resource that takies with described synchronizing information other data of resource bearing in addition.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101762479A CN101420263A (en) | 2007-10-23 | 2007-10-23 | Data information sending method and apparatus thereof |
| PCT/CN2008/001792 WO2009062388A1 (en) | 2007-10-23 | 2008-10-23 | Method and apparatus for transmitting data information |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101762479A CN101420263A (en) | 2007-10-23 | 2007-10-23 | Data information sending method and apparatus thereof |
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| CN101420263A true CN101420263A (en) | 2009-04-29 |
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| CNA2007101762479A Pending CN101420263A (en) | 2007-10-23 | 2007-10-23 | Data information sending method and apparatus thereof |
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| CN (1) | CN101420263A (en) |
| WO (1) | WO2009062388A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011023057A1 (en) * | 2009-08-31 | 2011-03-03 | ***通信集团公司 | Terminal access method, system and associated devices |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19916063C1 (en) * | 1999-04-09 | 2000-07-13 | Siemens Ag | Synchronising method for radio communication system |
| CN1194563C (en) * | 2002-04-19 | 2005-03-23 | 华为技术有限公司 | Radio communication method based on time division diplexing |
| US8300574B2 (en) * | 2005-07-06 | 2012-10-30 | Zte Corporation | Method of uplink synchronization establishment based on the united transmission technology |
| CN1917407B (en) * | 2005-08-17 | 2011-07-20 | 展讯通信（上海）有限公司 | TD SCDMA system communication method |
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2007
- 2007-10-23 CN CNA2007101762479A patent/CN101420263A/en active Pending
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011023057A1 (en) * | 2009-08-31 | 2011-03-03 | ***通信集团公司 | Terminal access method, system and associated devices |
| CN101998607B (en) * | 2009-08-31 | 2013-07-31 | ***通信集团公司 | Method, system and device for transmitting secondary synchronization signals by introducing uplink time slot to downlink |
| US8811319B2 (en) | 2009-08-31 | 2014-08-19 | China Mobile Communications Corporation | Terminal access method, system and associated devices |
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| WO2009062388A1 (en) | 2009-05-22 |
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Application publication date: 20090429 |