CN101860913B - Scheduling information transmitting method, system and device - Google Patents
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Abstract
The invention provides a scheduling information transmitting method. The method comprises the following steps that: UE receives multi-carrier HSUPA (High Speed Uplink Packet Access) configuration information allocated to the UE by a base station, wherein the multi-carrier HSUPA configuration information includes identity information capable of distinguishing all carriers; the UE calculates scheduling information corresponding to all the carriers, wherein the scheduling information of each carrier includes UE level information and carrier level information corresponding to each carrier; and the UE submits the calculated scheduling information to the base station through an MAC PDU (Media Access Control) (Protocol Data Unit) according to the remaining space of the MAC PDU, wherein the scheduling information of the MAC PDU is ranked according to the identity information of the carriers. By the invention, the transmission problem of the scheduling information in multi-carrier HSUPA can be solved, and terminals can be respectively scheduled by the base station according to the scheduling information of the terminals on all the carriers to obtain the maximum scheduling gain.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of scheduling information transmitting method, system and device.
Background technology
HSUPA (High Speed Uplink Packet Access, High Speed Uplink Packet inserts) has introduced N frequency characteristic in 3GPP, promptly can there be a plurality of frequencies a sub-district, and one of them frequency is the dominant frequency point, and other frequencies are auxilliary frequency.UE (User Equipment, subscriber equipment) is the single carrier operation pattern, and its working frequency points both can be on the dominant frequency point of sub-district also can the auxilliary frequency in the sub-district.The introducing of N frequency has promoted the user capacity of system greatly, and meanwhile N frequency characteristic is also laid a good foundation for introducing the multicarrier characteristic among the HSUPA.The introducing of multi-carrier HSUPA can promote user's up peak rate, and its upstream rate can be descending close with multi-carrier HSDPA, can realize up-downgoing speed symmetry.In addition, with respect to N frequency characteristic, the UE in the multi-carrier HSUPA system can use carrier wave more flexibly.
But the single carrier HSUPA under the N frequency, the introducing of multicarrier characteristic has also brought a lot of problems relevant with multicarrier.To carry be exactly one of them to schedule information under the multicarrier.What current ascending reinforcement system was that single-frequency puts the reflection of schedule information in the up enhancement techniques is the schedule information of UE at this frequency; But after multifrequency point is introduced; Because the partial information content on each frequency is different; So need to consider the mode of carrying of schedule information is carried out certain expansion, can carry mode through the schedule information of extended mode to reach UE, be that unit reports with the frequency with information.
In up enhancement techniques, having introduced new transmission channel kinds is E-DCH (ascending reinforced special channel); The data cell of this channel be MAC-e/es PDU (Protocol data unit, Packet Data Unit) (when the configuration be the MAC-es/e entity time) or MAC-i/is PDU (when the configuration be the MAC-is/i entity time).In existing up enhancement techniques, can carry uplink scheduling information (Scheduling Information, be called for short SI) among MAC-e PDU and the MAC-i PDU, MAC-e PDU all has the different modes of carrying with MAC-i PDU, below carries out brief account respectively.
When using MAC-e PDU, be illustrated in figure 1 as the sketch map that MAC-e PDU carries schedule information SI.Wherein, Each TTI (Transmission Time Interval) carries 1 MAC-e PDU on each E-DCH channel; This MAC-e PDU can carry the data of multiple business (being logic channel), promptly can carry a plurality of MAC-es PDU, the data of identical logic channel; The MAC-dPDU's (each logic channel all can corresponding a MAC-d entity) of configuration simultaneously is big or small identical; Then can form a MAC-es PDU, wherein DDI (Data Description Indicator, data description indication) can the characterization logic channel id and the size of each MAC-d PDU.When the needs transmitting scheduling information perhaps has Padding enough to fill schedule information, then schedule information SI is carried at the end of MAC-ePDU.When only containing schedule information among the MAC-e PDU, as shown in Figure 2.
When using MAC-i PDU, be illustrated in figure 3 as the sketch map that MAC-i PDU carries schedule information SI.Wherein, each TTI carries 1 MAC-i PDU on each E-DCH channel.Each MAC-i PDU comprises 1 MAC-i head and one or more MAC-is PDU.Each MAC-is PDU comprises one or more MAC-is SDU that belong to same logical channel.Each MAC-is SDU is a complete perhaps MAC-d PDU of segmentation.MAC-is PDU can be from a plurality of logic channels.When MAC-i PDU had remaining space or needs to send schedule information SI, schedule information was included in the end of MAC-i PDU.When only containing schedule information among the MAC-e PDU, similar with Fig. 2.
As shown in Figure 4, be the structural representation of schedule information SI in the prior art.The cache information that comprises this UE in the schedule information; It comprises TEBS (total buffer memory of UE), HLID (the highest service priority) and HLBS (buffer memory of highest priority traffic), also comprises SNPL (the path loss ratio of this sub-district and adjacent sub-district) and UPH (power headroom) in the schedule information.Dispatch and resource allocation this UE according to the schedule information that UE sends the base station.Wherein, The measurement cell of participating in SNPL calculating comprises with UE carries out the identical co-frequency neighbor cell of carrier wave that the HSUPA data are sent; And comprising the auxilliary frequency sub-district identical in the alien-frequency district with this HSUPA frequency, SNPL value that hence one can see that is the parameter of being separated by with frequency; And; UPH is defined as Pmax/ (Pebase*Pathloss); Wherein Pmax is the maximum power that UE sends, and Pathloss is the path loss that this UE measures according to broadcast channel, and Pebase is the power reference value of safeguarding according to each carrier case; Hence one can see that, and Pebase belongs to carrier wave level parameter, and promptly UPH also is a carrier wave level information.Therefore, in schedule information, not only comprise UE class information (cache information), also comprise carrier-grade information (UPH and SNPL).
Yet; Because existing up enhancement techniques only supports the single carrier transmitting capacity, therefore UE can only report the carrier-grade information of a carrier wave at present, like this for the scene of multi-carrier HSUPA; The send mode of present schedule information can only react the UE class information of UE and the carrier-grade information of certain carrier wave; And can not react the carrier-grade information of each carrier wave, the base station can only be according to other carrier waves of carrier-grade message scheduling of certain carrier wave like this, thereby cause the inaccurate problem of scheduling.
Summary of the invention
The object of the invention is intended to solve at least one of above-mentioned technological deficiency, particularly solves in the prior art and can only send the carrier-grade information of certain carrier wave to the base station, and cause the inaccurate technological deficiency of base station scheduling.
For achieving the above object; One aspect of the present invention proposes a kind of scheduling information transmitting method; May further comprise the steps: user equipment (UE) receives the configuration information that the base station is the multi-carrier high-speed ul packet access HSUPA of said UE distribution, includes the identification information that can distinguish each carrier wave in the wherein said configuration information; Said UE calculates the corresponding schedule information of each carrier wave, and the schedule information of wherein said each carrier wave comprises UE class information and the corresponding carrier-grade information of each carrier wave; Said UE gives said base station through medium cut-in control grouping data unit MAC PDU and according to the remaining space of said MAC PDU with the reporting of scheduling information (SI) that calculates, and the schedule information among the wherein said MAC PDU is arranged according to the identification information of said carrier wave.
As one embodiment of the present of invention, said identification information is the carrier index of said base station for each allocation of carriers, and the schedule information among the said MAC PDU is arranged according to the size of said carrier index.
As one embodiment of the present of invention, said identification information is the frequency point information of each carrier wave, and the schedule information among the said MAC PDU is arranged according to the size of frequency.
As one embodiment of the present of invention, the form of said schedule information is identical with the schedule information form of single carrier.
As one embodiment of the present of invention, said MAC PDU comprises MAC-e PDU or MAC-iPDU.
As one embodiment of the present of invention, also comprise: the schedule information of the carrier wave that said UE reports is read according to the arrangement of said identification information in said base station, and only reads the said UE class information in the carrier dispatching information.
The invention allows for a kind of schedule information transmission system; Comprise base station and at least one UE; Said base station is used to said UE and distributes multi-carrier HSUPA, and the configuration information of said multi-carrier HSUPA is sent to said UE; Include the identification information that to distinguish each carrier wave in the wherein said configuration information, and read the schedule information of the carrier wave that said UE reports according to the arrangement of said identification information; Said UE; Be used to receive the configuration information that said base station is the multi-carrier HSUPA of said UE distribution; And calculate the corresponding schedule information of each carrier wave; The schedule information of wherein said each carrier wave comprises UE class information and the corresponding carrier-grade information of each carrier wave, and gives said base station through MAC PDU and according to the remaining space of said MAC PDU with the reporting of scheduling information (SI) that calculates, and the schedule information among the wherein said MAC PDU is arranged according to the identification information of said carrier wave.
As one embodiment of the present of invention, said identification information is that said base station is the carrier index of each allocation of carriers or the frequency point information of each carrier wave.
The invention allows for a kind of UE; Comprise receiver module; Schedule information computing module and reporting module; Said receiver module is used to receive the configuration information that the base station is the multi-carrier high-speed ul packet access HSUPA of said UE distribution, includes the identification information that can distinguish each carrier wave in the wherein said configuration information; Said schedule information computing module is used to calculate the corresponding schedule information of each carrier wave, and the schedule information of wherein said each carrier wave comprises UE class information and the corresponding carrier-grade information of each carrier wave; Said reporting module; Be used for giving said base station through medium cut-in control grouping data unit MACPDU and according to the remaining space of said MAC PDU with the reporting of scheduling information (SI) that calculates, the schedule information among the wherein said MAC PDU is arranged according to the identification information of said carrier wave.
As one embodiment of the present of invention, said identification information is that said base station is the carrier index of each allocation of carriers or the frequency point information of each carrier wave.
As one embodiment of the present of invention, the form of said schedule information is identical with the schedule information form of single carrier.
As one embodiment of the present of invention, said MAC PDU comprises MAC-e PDU or MAC-iPDU.
The present invention also proposes a kind of base station; Comprise configuration information sending module and schedule information acquisition module; Said configuration information sending module; The configuration information of the multi-carrier HSUPA that is used for distributing for UE sends to said UE, includes the identification information that can distinguish each carrier wave in the wherein said configuration information; Said schedule information acquisition module is used for reading according to the arrangement of said identification information the schedule information of the carrier wave that said UE reports.
The present invention can solve the transmission problem of schedule information in the multi-carrier HSUPA, makes the base station to come the terminal is dispatched respectively according to the schedule information of terminal on each carrier wave, to obtain maximum scheduling gain.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize through practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously with easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 carries the sketch map of schedule information SI for MAC-e PDU;
Fig. 2 is the sketch map when only containing schedule information among the MAC-e PDU;
Fig. 3 carries the sketch map of schedule information SI for MAC-i PDU;
Fig. 4 is the structural representation of schedule information SI in the prior art;
Fig. 5 is the flow chart of embodiment of the invention scheduling information transmitting method;
Fig. 6 and 7 is respectively and uses MAC-e PDU and MAC-i PDU to carry the sketch map of schedule information;
Fig. 8 is the schedule information transmission system sketch map of the embodiment of the invention.
Embodiment
Describe embodiments of the invention below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the present invention, and can not be interpreted as limitation of the present invention.
The present invention mainly is; UE sends to the base station according to certain arrangement schedule information that each carrier wave is corresponding through MAC PDU; For example the base station can be numbered the carrier information of correspondence respectively when distributing the HSUPA carrier wave for UE; UE arranges the schedule information of each carrier wave according to the numbering of carrier wave when sending schedule information, perhaps UE also can be according to the schedule information according to from small to large each carrier wave of sequence arrangement such as the size of frequency, perhaps through other modes.Those skilled in the art can be through above-mentioned thought of the present invention, expects that other modes transmit the arrangement mode of each carrier dispatching information, and UE and base station are consistent and get final product in the present invention.
As shown in Figure 5, the flow chart for embodiment of the invention scheduling information transmitting method may further comprise the steps:
Step S501, network and UE support under the situation of HSUPA that network can be the resource that this UE distributes multi-carrier HSUPA.
Step S502, the configuration information of the multi-carrier HSUPA that the base station will be distributed for UE sends to UE, wherein includes the identification information that can distinguish each carrier wave in this configuration information.Particularly, base station controller is notified RNC with relevant configuration information earlier in the base station, this configuration information is notified to UE through the RRC signaling message by RNC then again.For example as one embodiment of the present of invention, this identification information can be the carrier index of base station for each allocation of carriers, as network be terminal configuration 3 up HSUPA send carrier waves; Carrier index is respectively 1,2,3; Be that first is that 1, the second of carrier wave is that 2, the three of carrier waves are carrier wave 3.Certainly in other embodiments of the invention; Also can send newly assigned carrier index; Utilize existing carrier configuration information also can realize, as long as UE and base station are unified, for example UE can select the frequency point information in the carrier configuration information; Promptly from small to large or the schedule information of sending carrier wave of order from big to small, also can select other parameter certainly according to frequency.
Step S503, UE calculate the corresponding schedule information of each carrier wave, and wherein the schedule information of each carrier wave comprises UE class information and the corresponding carrier-grade information of this carrier wave.Wherein, in one embodiment of the invention, the form of schedule information is identical with the schedule information form of single carrier.
Step S504, UE gives the base station through MAC PDU and according to the remaining space of MAC PDU with the reporting of scheduling information (SI) that calculates, and wherein the schedule information among the MAC PDU is arranged according to the identification information of carrier wave.Above-mentioned in the present embodiment " remaining space " can be understood that comparatively wide in range notion; If for example the priority ratio of schedule information is higher; Then UE will at first add schedule information when organizing MAC PDU, just not will consider business datum if schedule information is filled up MAC PDU.Therefore if can think that " remaining space " is enough when the higher and schedule information each carrier wave of priority ratio is fewer; Therefore the schedule information that can send whole carrier waves; If perhaps the schedule information of each carrier wave is many, then may send the schedule information of respective numbers carrier wave according to the size of " remaining space ".Also having another kind possibly be that the priority ratio of schedule information is lower, and UE will at first place business datum when organizing MAC PDU, and then shared " remaining space " of schedule information is relevant with the size of business datum at this moment.Therefore; Can carry the space size of schedule information among " remaining space " general reference MAC PDU here; All the other multiple factors (like the priority of schedule information) are relevant; Those skilled in the art can expect the factor that other are relevant according to the foregoing description, and these other correlative factors all should be included within the scope of the present invention.
In an embodiment of the present invention; MAC PDU can comprise MAC-e PDU or MAC-i PDU; Shown in Fig. 6 and 7; Be respectively and use MAC-e PDU and MAC-i PDU to carry the sketch map of schedule information, thinking that still it is example that UE distributes three up HSUPA carrier waves shown in Fig. 6 and 7, but be understood that the up HSUPA carrier wave that can be UE distribution any number for the present invention.In Fig. 6, the schedule information of SI-F1 sign carrier wave 1, the schedule information of SI-F2 sign carrier wave 2, the schedule information of SI-F3 sign carrier wave 3.In the figure, the form of the schedule information SI under the form of SI-Fn and the existing single carrier case is identical, has both comprised the UE class information among each SI-Fn, also comprises the carrier-grade information that this carrier wave is corresponding.Content for comprising among each SI-Fn of UE class information is all identical, but maybe be inequality for the content that comprises among each SI-Fn of carrier-grade information.In one embodiment of the invention, if the remaining space of MAC-e PDU transmits the schedule information of all carrier waves inadequately, then can in MAC-e PDU, fill in several just fill in several, other no longer transmission.Carry the sketch map of schedule information like Fig. 7 for using MAC-i PDU, after the L2 enhancement techniques was introduced, the MAC-i entity that the MAC layer is introduced equally also can be applicable among the present invention, and its processing mode and MAC-e's is similar, repeats no more at this.
Step S505; The base station receives the MAC PDU (like MAC-e PDU or MAC-iPDU) that UE sends; The schedule information of a plurality of carrier waves that wherein comprise is parsed; The number of certain carrier dispatching information wherein can depend on the remaining space of MAC-PDU, therefore may not include whole carrier dispatching information.Particularly, the base station can be read the schedule information of the carrier wave that UE reports according to the arrangement of identification information, and only reads the said UE class information in the carrier dispatching information.For example refer again to Fig. 6, the base station obtains the schedule information of the carrier wave 1 of SI-F1 sign respectively, the schedule information of the carrier wave 2 of SI-F2 sign, the schedule information of the carrier wave 3 of SI-F3 sign.
As shown in Figure 8, be the schedule information transmission system sketch map of the embodiment of the invention, this system comprises base station 100 and at least one UE 200.Base station 100 is used to UE 200 and distributes multi-carrier HSUPA; And the configuration information of multi-carrier HSUPA sent to UE 200; Wherein include the identification information that to distinguish each carrier wave in the configuration information, and read the schedule information of the carrier wave that UE 200 reports according to the arrangement of identification information.UE 200 is used to receive the configuration information of base station 100 for the multi-carrier HSUPA of UE 200 distribution; And calculate the corresponding schedule information of each carrier wave; Wherein the schedule information of each carrier wave comprises UE class information and the corresponding carrier-grade information of each carrier wave; And pass through MAC PDU and give said base station according to the remaining space of MAC PDU with the reporting of scheduling information (SI) that calculates, wherein the schedule information among the MAC PDU is arranged according to the identification information of carrier wave.Wherein, in one embodiment of the invention, said identification information is that the base station is the carrier index of each allocation of carriers or the frequency point information of each carrier wave.Wherein, in another embodiment of the present invention, MAC PDU comprises MAC-e PDU or MAC-i PDU.
Wherein, base station 100 comprises configuration information sending module 110 and schedule information acquisition module 120.Configuration information sending module 110 is used for the configuration information of the multi-carrier HSUPA that distributes for UE 200 is sent to UE 200, wherein includes the identification information that can distinguish each carrier wave in the configuration information.Schedule information acquisition module 120 is used for reading according to the arrangement of identification information the schedule information of the carrier wave that UE 200 reports.
Wherein, UE 200 comprises receiver module 210, schedule information computing module 220 and reporting module 230.Receiver module 210 is used to receive the configuration information of base station 100 for the multi-carrier HSUPA of UE 200 distribution, wherein includes the identification information that can distinguish each carrier wave in the configuration information.Schedule information computing module 220 is used to calculate the corresponding schedule information of each carrier wave, and wherein the schedule information of each carrier wave comprises UE class information and the corresponding carrier-grade information of each carrier wave.Reporting module 230 is used for giving base station 100 through MAC PDU and according to the remaining space of MAC PDU with the reporting of scheduling information (SI) that calculates, and wherein the schedule information among the MAC PDU is arranged according to the identification information of carrier wave.
The present invention can solve the transmission problem of schedule information in the multi-carrier HSUPA, makes the base station to come the terminal is dispatched respectively according to the schedule information of terminal on each carrier wave, to obtain maximum scheduling gain.
Although illustrated and described embodiments of the invention; For those of ordinary skill in the art; Be appreciated that under the situation that does not break away from principle of the present invention and spirit and can carry out multiple variation, modification, replacement and modification that scope of the present invention is accompanying claims and be equal to and limit to these embodiment.
Claims (13)
1. a scheduling information transmitting method is characterized in that, may further comprise the steps:
User equipment (UE) receives the configuration information that the base station is the multi-carrier high-speed ul packet access HSUPA of said UE distribution, includes the identification information that can distinguish each carrier wave in the wherein said configuration information;
Said UE calculates the corresponding schedule information of each carrier wave, and the schedule information of wherein said each carrier wave comprises UE class information and the corresponding carrier-grade information of each carrier wave;
Said UE gives said base station through medium cut-in control grouping data unit MAC PDU and according to the remaining space of said MAC PDU with the reporting of scheduling information (SI) that calculates, and the schedule information among the wherein said MAC PDU is arranged according to the identification information of said carrier wave.
2. scheduling information transmitting method as claimed in claim 1 is characterized in that, said identification information is the carrier index of said base station for each allocation of carriers, and the schedule information among the said MAC PDU is arranged according to the size of said carrier index.
3. scheduling information transmitting method as claimed in claim 1 is characterized in that, said identification information is the frequency point information of each carrier wave, and the schedule information among the said MAC PDU is arranged according to the size of frequency.
4. like claim 2 or 3 described scheduling information transmitting methods, it is characterized in that the form of said schedule information is identical with the schedule information form of single carrier.
5. like claim 2 or 3 described scheduling information transmitting methods, it is characterized in that said MAC PDU comprises MAC-e PDU or MAC-i PDU.
6. scheduling information transmitting method as claimed in claim 1 is characterized in that, also comprises:
The schedule information of the carrier wave that said UE reports is read according to the arrangement of said identification information in said base station, and only reads the said UE class information in the carrier dispatching information.
7. a schedule information transmission system is characterized in that, comprises base station and at least one user equipment (UE),
Said base station; Comprise that being used to said UE distributes multi-carrier HSUPA and the configuration information of said multi-carrier HSUPA is sent to the configuration information sending module of said UE and reads the schedule information acquisition module of the schedule information of the carrier wave that said UE reports according to the arrangement of said identification information, includes the identification information that can distinguish each carrier wave in the wherein said configuration information;
Said UE; Comprise the reporting module that is used to receive receiver module that said base station is the configuration information of the multi-carrier HSUPA that distributes of said UE, calculates the schedule information computing module of the corresponding schedule information of each carrier wave and through MAC PDU and according to the remaining space of said MAC PDU the reporting of scheduling information (SI) that calculates is given said base station; The schedule information of wherein said each carrier wave comprises UE class information and the corresponding carrier-grade information of each carrier wave, and the schedule information among the said MAC PDU is arranged according to the identification information of said carrier wave.
8. schedule information transmission system as claimed in claim 7 is characterized in that, said identification information is that said base station is the carrier index of each allocation of carriers or the frequency point information of each carrier wave.
9. a user equipment (UE) is characterized in that, comprises receiver module, schedule information computing module and reporting module,
Said receiver module is used to receive the configuration information that the base station is the multi-carrier high-speed ul packet access HSUPA of said UE distribution, includes the identification information that can distinguish each carrier wave in the wherein said configuration information;
Said schedule information computing module is used to calculate the corresponding schedule information of each carrier wave, wherein institute
The schedule information of stating each carrier wave comprises UE class information and the corresponding carrier-grade information of each carrier wave;
Said reporting module; Be used for giving said base station through medium cut-in control grouping data unit MAC PDU and according to the remaining space of said MAC PDU with the reporting of scheduling information (SI) that calculates, the schedule information among the wherein said MAC PDU is arranged according to the identification information of said carrier wave.
10. UE as claimed in claim 9 is characterized in that, said identification information is that said base station is the carrier index of each allocation of carriers or the frequency point information of each carrier wave.
11. UE as claimed in claim 9 is characterized in that, the form of said schedule information is identical with the schedule information form of single carrier.
12. UE as claimed in claim 9 is characterized in that, said MAC PDU comprises MAC-e PDU or MAC-i PDU.
13. a base station is characterized in that, comprises configuration information sending module and schedule information acquisition module,
Said configuration information sending module is used for the configuration information of the multi-carrier HSUPA that distributes for user equipment (UE) is sent to said UE, includes the identification information that can distinguish each carrier wave in the wherein said configuration information;
Said schedule information acquisition module is used for reading according to the arrangement of said identification information the schedule information of the carrier wave that said UE reports, and wherein the schedule information of each carrier wave comprises UE class information and the corresponding carrier-grade information of each carrier wave.
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| CN106571901B (en) * | 2015-10-13 | 2020-03-27 | 华为技术有限公司 | Method, equipment and system for establishing media access control entity |
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| WO2006096789A1 (en) * | 2005-03-08 | 2006-09-14 | Qualcomm Incorporated | Multi-carrier, multi-flow, reverse link medium access control for a communication system |
| CN101127748A (en) * | 2006-08-15 | 2008-02-20 | 大唐移动通信设备有限公司 | Transmission method and device for uplink synchronization command word in OFDM mobile communication system |
| CN101374040A (en) * | 2007-08-24 | 2009-02-25 | 大唐移动通信设备有限公司 | Method and apparatus for implementing multi-carrier district high speed data business transmission |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006096789A1 (en) * | 2005-03-08 | 2006-09-14 | Qualcomm Incorporated | Multi-carrier, multi-flow, reverse link medium access control for a communication system |
| CN101127748A (en) * | 2006-08-15 | 2008-02-20 | 大唐移动通信设备有限公司 | Transmission method and device for uplink synchronization command word in OFDM mobile communication system |
| CN101374040A (en) * | 2007-08-24 | 2009-02-25 | 大唐移动通信设备有限公司 | Method and apparatus for implementing multi-carrier district high speed data business transmission |
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