CN2746688Y - Radio communication system for providing channel distribution information for supporting UL and DL channel - Google Patents
Radio communication system for providing channel distribution information for supporting UL and DL channel Download PDFInfo
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- CN2746688Y CN2746688Y CNU2004201174407U CN200420117440U CN2746688Y CN 2746688 Y CN2746688 Y CN 2746688Y CN U2004201174407 U CNU2004201174407 U CN U2004201174407U CN 200420117440 U CN200420117440 U CN 200420117440U CN 2746688 Y CN2746688 Y CN 2746688Y
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Abstract
The utility model discloses a communication system for providing channel distribution information for supporting a UL and a DL channels, which comprises at least one B node and at least one wireless transmitting / receiving unit (WTRU). The wireless transmitting / receiving unit (WTRU) carries out communication with the B node through a public control channel, an upper link (UL) channel and a down link (DL) channel. Channel dispatching information provided with an indication is received by the wireless transmitting / receiving unit (WRTU) through the public control channel from the B node. The indication is used for indicating the channels whether to dispatch radio resources to the upper link (UL) channel or to the down link (DL) channel, and therefore, the wireless transmitting / receiving unit (WTRU) can adopt appropriate actions based on the indication.
Description
Technical field
The relevant a kind of wireless communication system of the utility model.Further, the utility model is relevant a kind of in order to provide channel distribution information to reach chain system for transmitting and method thereof down to support cochain.
Background technology
High speed downlink packet access (High Speed Downlink Package Access, HSDPA) be developed with chain (DL) efficient under improving and in universal mobile telecommunications system (Universal MobileTelecommunication System, total handling rate of wideband code division multiple access system (W-CDMA) in the 5th distribution (R5) version UMTS).Compared to the R99/R4 version of universal mobile telecommunications system (UMTS), the main benefit of high speed downlink packet access (HSDPA) is adjusted for dynamic link quick and in following chain and quick layer 1 mixed automatic repeat request (H-ARQ).Fast to adjust be that chain is transmitted in the base station under the quick scheduling to link, gets in touch with 1 time chain signaling channel of quick layer and reached.This signaling channel, promptly a High-Speed Shared Control Channel (HS-SCCH) transmits wireless resource configuration to a plurality of wireless transmission/receive units (WTRUs)
In a frequency division duplexing (FDD), a High-Speed Shared Control Channel (HS-SCCH) is during three (3) time slot Transmission Time Intervals (TTI), with an exhibition frequently coefficient (SF) equal 128 channelizing coding and be sent.This High-Speed Shared Control Channel (HS-SCCH) shows, after a specific time error, in a high speed downlink shared channel (HS-DSCH), data will be transferred to a wireless transmission/receive unit (WTRU).This High-Speed Shared Control Channel (HS-SCCH) carries following message: 1) channelizing code set (channelization-code-set) information (seven positions); 2) adjust scheme information (position); 3) size information (six positions) of transmission square (transport-block); 4) mixed automatic repeat request (H-ARQ) information (three positions); 5) redundancy and astrology type (constellation) version information (three positions); 6) new data indication information (position); 7) wireless transmission/receive unit (WTRU) characteristic (16 positions).
This High-Speed Shared Control Channel (HS-SCCH) is to send (two second time interval 2msTTI) on three (3) time slots), but it is present in two field domains, and first field domain (first time slot) comprises the pairing of channelizing sign indicating number and adjusts format information; And second field domain (the second and the 3rd time slot) comprise transmission square size, mixed automatic repeat request (H-ARQ) information, redundancy versions and with the distinctive Cyclical Redundancy Check of a wireless transmission/receive unit (CRC) new data index together.
Selectively, an enhanced uplink (EU) increases cochain (UL) efficient and total handling rate.Mixed automatic repeat request (H-ARQ) is the some of this enhanced uplink (EU) with the scheduling of B node.Similar in appearance to a high speed downlink packet access (HSDPA), new chain (DL) control channel down of sharing in order to enhanced uplink (EU) operation provides adjusting fast and dynamically of cochain (UL) Radio Resource, transmits in order to cochain (UL).Chain (DL) control channel down of sharing that this is used for enhanced uplink (EU) need go to guarantee the low shallow high efficiency at factor and RRM that disposes, and transmits in order to cochain (UL).Below, chain (DL) control channel was the purpose that is called as a cochain (UL) assignment of resources channel simply in order to an enhanced uplink (EU) under this was shared.
For an enhanced uplink (EU) and a high speed downlink packet access (HSDPA) means together, another (UL) assignment of resources channel that is used for enhanced uplink (EU) can be introduced in one of a high speed downlink packet access (HSDPA) and have High-Speed Shared Control Channel (HS-SCCH).So, introduce exhibition that a component opens coefficient (SF) following chain (DL) channel that equals 128 frequently, be feasible as (UL) assignment of resources channel.By this method, a wireless transmission/receive unit (WTRU) goes needs to monitor one or more (UL) assignment of resources channels, for the operation of a high speed downlink packet access (HSDPA) except High-Speed Shared Control Channel (HS-SCCH).Though this method is simple notion, there are many shortcomings to be included in this scheme, for example complexity of wireless transmission/receive unit (WTRU), the battery efficiency of wireless transmission/receive unit, and chain (DL) exhibition usability frequently down.
So,, need an efficient enhanced uplink (EU) channel assignment in order to support the operation of a cochain (EU) and a high speed downlink packet access (HSDPA) simultaneously.
The utility model content
In one embodiment, the utility model is a kind of wireless communication system that channel distribution information is provided, and wherein channel distribution information is to be used to support a cochain (UL) channel and chain (DL) channel once.This kind system comprises at least one B node and at least one wireless transmission/receive unit (WTRU), and wireless transmission/receive unit (WTRU) is by a shared control channel, cochain (UL) channel and chain (DL) channel is next down communicates with the B node.Wireless transmission/receive unit (WTRU) receives an information by shared control channel from the B node.This information comprises an indication, and whether this indication is to be at this wireless transmission/receive unit (WTRU) in order to indication information, if this wireless transmission/receive unit (WTRU) judges whether this information is in order to assign Radio Resource to cochain (UL) channel or following chain (DL) channel.Can be so as to this wireless transmission/receive unit (WTRU) based on taking suitable action relevant for the judgement of radio resource assignment.
Description of drawings
The utility model can be by following preferred embodiment as example, and is understood in more detail in conjunction with relevant drawings, wherein:
Fig. 1 is the calcspar according to a wireless telecommunication system of the utility model operation;
Fig. 2 is the question blank of the channel code set figure in a HSDPA, and it is to be used in combination with the system of Fig. 1; And
Fig. 3 is a program flow diagram, and this program comprises according to the utility model and assigns the method step that sends signal in order to carry out the cochain channel.
Embodiment
The utility model is with reference to graphic explanation, and wherein identical number is represented components identical.
After this, proprietary term " WTRU " comprises but any type of device that is not limited to user's equipment (UE), mobile radio station, fixing or moving user unit, calling set or can operates in a wireless environment.Mention proprietary term " B node " when after this, it comprises but is not limited to a base station, site controller, access point or any type of interfare device under a wireless environment.
The utility model also can further be applied to any type of wireless communication system, for example UMTS time division duplex (TDD) and FDD, time division synchronous code division multiple access (TD-SCDMA), sign indicating number divide multiple access 2000 (CDMA 2000) and general CDMA, or any type of wireless communication system.
Feature of the present utility model can be integrated into an IC or be disposed at one and comprise in the circuit of many interconnection elements.
The utility model is described with reference to a HSDPA and an EU, and this proprietary term " HSDPA " and " EU " can intercourse use with DL and UL respectively, yet it must be appreciated, with reference to a HSDPA and EU only is in order to describe preferred embodiment of the present utility model, can be used for any system that utilizes a shared control channel and the utility model discloses, it is in order to transmit UL and DL channel transmitted assignment information simultaneously.
Fig. 1 is a calcspar according to system 100 of the present utility model, and it is in order to support UL and DL operation.This system 100 comprises a RNC 102, a B node 104 and a WTRU 106.This B node 104 is controlled by this RNC 102, and dynamic configuration is from this WTRU 106 and transfer to the UL of this WTRU 106 and the Radio Resource of DL transmission.This channel is a DL channel 108, a UL channel 110 and a shared control channel 112, and this shared control channel 112 is the transmission that is used for UL and DL channel transmitted assignment information.
This B node 104 is to be configured to support a HSDPA and EU operation.Therefore, dynamically respectively in a HS-DSCH and an EU channel, configuration is from this WTRU 106 and transfer to the UL of this WTRU 106 and the Radio Resource of DL transmission for each B node 104.The radio resource assignment information of this HS-DSCH and this EU is by these shared control channel 112 transmission.
According to the utility model, this shared control channel 112 is the radio resource assignment information that is used for UL and DL transmission, and provides whether a specific indication is to be used for UL or DL transmission in order to discern this radio resource assignment.Therefore, this shared control channel 112 takies one and shares DL Radio Resource space, it is with the definition of the channelization code of one group of SF=128, and it is to be used for DL and UL transmission simultaneously, and this WTRU 106 is whether be configured to discern a specific transmission be in order to assign the Radio Resource of this DL or UL transmission.
According to one first embodiment of the present utility model, particular radio resource system is divided an indication of tasking UL transmission, and being provides by can not making up of one or more channelization code set figure in an existing high speed downlink packet access (HSDPA).Fig. 2 is the existing question blank that is used for the channelization code set figure of this HSDPA.One High-Speed Shared Control Channel (HS-SCCH) uses seven (7) to notify the channelization code system of these WTRU 106 which SF=16 to be used for corresponding HS-DSCH, outside this 128 scope that may make up, eight kinds (8) combination is not used (seeing " redundant area " that indicate among Fig. 2 for details) in a HSDPA now, eight kinds are used the one or more of combination is to transmit in order to assign Radio Resource or to indicate this demodulate transmitted system to be used for UL, but not the DL transmission.Therefore, if this WTRU 106 has determined can not one of make up in the channelization code set corresponding diagram 2, then this system of transmission system of this WTRU 106 identifications is in order to the radio resource assignment of UL transmission, but not the DL transmission, or this sign indicating number corresponds to this set of channelization codes syzygy branch and tasks UL and transmit.
According to one second embodiment of the present utility model, particular radio resource system is divided an indication of tasking UL transmission, is provided by the specific CRC of a WTRU-.Under existing HSDPA specification, the specific CRC of WTRU-system is contained in a High-Speed Shared Control Channel (HS-SCCH) zone 2.One 16 CRC system is from the information calculations of desiring to be transmitted, and the CRC of this calculating system is sheltered with 16 WTRU identifications (ID) of a uniqueness, and this CRC that shelters system is transferred to a WTRU 106 as the specific CRC of a WTRU-.
According to one second embodiment of the present utility model, the specific CRC of this WTRU-system can transmit for UL to indicate this demodulate transmitted via the mode correction of a uniqueness and decision, but not the DL transmission.For instance, the specific CRC of a WTRU-calculates the reverse HSDPA for an EU before carrying out a chnnel coding, and a WTRU106 carries out two (2) individual different comparisons, is preferably simultaneously and carries out, and it is the mode with the CRC that carries out this reception transmission.If these WTRU 106 successes with the specific CRC of a WTRU-this reception transmission of decoding, then these WTRU 106 these transmission of identification are for a HSDPA, if this WTRU 106 successes are with the specific CRC of a reverse WTRU-this receptions transmission of decoding, then this WTRU 106 discerns this and transmits for an EU.
According to the 3rd embodiment of the present utility model, be to provide by the specific sequence of sheltering of a WTRU by the indication of the particular radio resource of assigning at an EU.In present HSDPA specifications, sheltered with a specific intermediate code sequence of 40 WTRU that is produced by 16 WTRU ID for 40 of a field 1.
According to the 3rd embodiment, the WTRU of field 1 specific shelter with a uniqueness and have conclusive mode revise, in order to indicating that it is the transmission of an EU, rather than the transmission of a HSDPA.For example, reverse 16 CRC that produced in a second embodiment can be used to drive these 40 the long sequences of sheltering.If effectively decoding, this WTRU 106 shelters the transmission that sequence receives by a WTRU is specific, this WTRU 106 can identify the transmission by a HSDPA, if and this WTRU 106 can effectively decode and shelter the transmission that sequence receives by a reverse WTRU is specific, this WTRU 106 can identify the transmission by an EU.
Relevant the method, whether this WTRU 106 can distinguish the assignment of EU or HSDPA channel and transmit after the field 1 that receives only this High-Speed Shared Control Channel (HS-SCCH) transmission.
In addition, WTRU IDs can be disposed in this way by this networking, so a specific WTRU ID can not conflict with another WTRU ID.For example, the reverse ID of one the one WTRU of EU can be used to indicate the HSDPA service of one the 2nd WTRU, therefore, and the synchronous detecting that can assist a UL assignment of resources channel and a High-Speed Shared Control Channel (HS-SCCH) whether to exist.
In one the 4th embodiment of the present utility model, be to provide by Radio Resource control (PRC) context signalling institute by indication at the particular radio resource that an EU assigned.The preferably, B node 104 each Radio Resources of configuration are to be used in transmission of UL radio resource assignment and the transmission of DL radio resource assignment.In addition, a RNC 102 is by using RRC signalling information to dispose each Radio Resource to be used in transmission of UL radio resource assignment and the transmission of DL radio resource assignment.
For example, RRC signal message from RNC 102 can notify a WTRU 106 which TTI to remove to expect a High-Speed Shared Control Channel (HS-SCCH) or a UL assignment of resources channel at.In present R5HSDPA specifications, 15 time slots comprise a news frame and three time slots comprise a TTI.The TTI of " even number " can comprise the time slot as the 2nd, 4,6,8,10,12 and 14, and the TTI of " odd number " can comprise the 1st, 3,5,7,9,11,13 and 15 time slot.
According to the utility model, it is to be transmission at a UL assignment of resources channel at the transmission of High-Speed Shared Control Channel (HS-SCCH) and transmission in " odd number " TTI that a RRC transmission signals can be indicated a transmission in " even number " TTI.By not allowing the transmission in a High-Speed Shared Control Channel (HS-SCCH) be transferred among " odd number " TTI, can guarantee reverse compatibility to R5 WTRU.The identity set of SF=128 resource can be used in a High-Speed Shared Control Channel (HS-SCCH) and the UL assignment of resources channel.
According to one the 5th embodiment of the present utility model, be that indication by the level 1 of a relevant DL dedicated channel (DCH) is provided by indication at the particular radio resource that EU assigned.One or more positions are fixedly to be predetermined timing by one to concern and indicate the approach appearance of UL assignment of resources channel conduct with respect to a High-Speed Shared Control Channel (HS-SCCH) at this relevant DL DCH.
The 3rd figure be according to of the present utility model have be used to implement the flow chart of flow process 300 that the UL channel is assigned the method step of signal.After flow process 200 (step 202) was initial, the information of radio resource assignment was transferred to a WTRU 106 by a Common Control Channel from a B node 104.These WTRU 106 reception backs and use are predetermined sign indicating number and remove each TTI that is predetermined of demodulation, for example, and at each 2ms (step 204).This WTRU 106 determines subsequently whether this information plans at this WTRU 106 (step 206), and the specific CRC of WTRU purpose and using according to this, if promptly these WTRU 106 these information of decision whether DL transmission or the wireless messages of UL transmission dispose reach the utility model before described arbitrary embodiment (step 208).This WTRU 106 subsequently according to take appropriate action in the judgement of step 208 (step 210) by DL or the UL channel goes to receive or the transmission data packet, for example, this WTRU 106 can accurately discern when via this DL channel 108 deinitializations, one Data Receiving flow process or when via this UL channel 110 deinitializations one transfer of data flow process.In general, the High-Speed Shared Control Channel of HSDPA (HS-SCCH) is that the data packet that declaration WTRU comes in has two fixing gap loss, otherwise the utility model then can be notified this WTRU when WTRU has an opportunity to transmit a package (for example from four present cracks) via this UL.
Although characteristic of the present utility model and element at large show with reference to preferred embodiment and describe; person skilled in the art scholar will understand that; under the described protection range of the utility model hereinbefore, can finish the change of various types and details therein.
Claims (24)
1. one kind provides a plurality of cochains (UL) channel and a plurality of wireless communication system of chain (DL) channel down, and described a plurality of cochains (UL) channel and described a plurality of chain (DL) channel are down shared by a plurality of wireless transmission/receive units (WTRUs), and described system comprises:
At least one B node comprises:
One in order to assign a cochain (UL) channel and chain (DL) channel once with a wireless transmission/receive unit (WTRU) communicating devices;
Whether one dispensing device in order to sending the channel distribution information with an indication by a shared channel, is at a cochain (UL) channel or chain (DL) channel once to indicate described channel distribution information; And
One by a cochain (UL) channel or the device that once chain (DL) channel comes and described wireless transmission/receive unit (WTRU) communicates; And
At least one wireless transmission/receive unit (WTRU) comprises:
Whether one be at a cochain (UL) channel or the device of chain (DL) channel once in order to judge that from described indication described channel is assigned; And
One communicator is in order to according to described channel distribution information and described indication, by a cochain (UL) channel or once chain (DL) channel comes to communicate with described B node.
2. the system as claimed in claim 1 is characterized in that described being designated as at described cochain (UL) channel or the utilization of one group of mapping combination of the channelization code of described chain (DL) channel down.
3. the system as claimed in claim 1 is characterized in that described being designated as at described cochain (UL) channel or the described utilization of a wireless transmission/receive unit (WTRU) the particular cycle redundancy check (CRC) of chain (DL) channel down.
4. system as claimed in claim 3, the described Cyclical Redundancy Check (CRC) that it is characterized in that described cochain (UL) channel is an inverse version at a wireless transmission/receive unit (WTRU) the particular cycle redundancy check (CRC) of described down chain (DL).
5. system as claimed in claim 4 is characterized in that a wireless transmission/receive unit (WTRU) particular cycle redundancy check (CRC) is utilize to divide the identification symbol (ID) of tasking described wireless transmission/receive unit (WTRU) and produce.
6. the system as claimed in claim 1 is characterized in that described indication is the specific sequence (masking sequence) of sheltering of a wireless transmission/receive unit (WTRU).
7. the system as claimed in claim 1 is characterized in that described indication is to signal and transmit by Radio Resource control.
8. the system as claimed in claim 1 is characterized in that described indication is to transmit by the dedicated channel of a described wireless transmission/receive unit (WTRU).
9. a wireless transmission/receive unit (WTRU) comprises:
One receiving system, in order to receive an information, described information comprises a channel distribution information and an indication, and described indication is to assign Radio Resource to a cochain (UL) channel or chain (DL) channel once in order to indicate described channel to assign whether to be; And
One decision maker, whether in order to judge that described channel is assigned is to assign Radio Resource to described cochain (UL) channel or described chain (DL) channel down, so as to described wireless transmission/receive unit (WTRU) according to described channel distribution information and described indication, by a cochain (UL) channel or once chain (DL) channel communicates.
10. wireless transmission/receive unit as claimed in claim 9 (WTRU) is characterized in that described being designated as at described cochain (UL) channel or the utilization of one group of mapping combination of the channelization code of described chain (DL) channel down.
11. wireless transmission/receive unit as claimed in claim 9 (WTRU) is characterized in that described being designated as at described cochain (UL) channel or the described utilization of a wireless transmission/receive unit (WTRU) the particular cycle redundancy check (CRC) of chain (DL) channel down.
12. wireless transmission/receive unit as claimed in claim 11 (WTRU), the described Cyclical Redundancy Check (CRC) that it is characterized in that described cochain (UL) channel are inverse version at a wireless transmission/receive unit (WTRU) the particular cycle redundancy check (CRC) of described down chain (DL).
13. wireless transmission/receive unit as claimed in claim 12 (WTRU) is characterized in that a wireless transmission/receive unit (WTRU) particular cycle redundancy check (CRC) is utilize to divide the identification symbol (ID) of tasking described wireless transmission/receive unit (WTRU) and produce.
14. wireless transmission/receive unit as claimed in claim 9 (WTRU) is characterized in that described indication is the specific sequence (masking sequence) of sheltering of a wireless transmission/receive unit (WTRU).
15. wireless transmission/receive unit as claimed in claim 9 (WTRU) is characterized in that described indication is to signal and transmit by Radio Resource control.
16. wireless transmission/receive unit as claimed in claim 9 (WTRU) is characterized in that described indication is to signal and transmit by Radio Resource control.
17. an integrated circuit (IC) comprises:
One receiving system, in order to receive an information, described information comprises a channel distribution information and an indication, and described indication is to assign Radio Resource to a cochain (UL) channel or chain (DL) channel once in order to indicate described channel to assign whether to be; And
One decision maker, whether in order to judge that described channel is assigned is to assign Radio Resource to described cochain (UL) channel or described chain (DL) channel down, so as to described wireless transmission/receive unit (WTRU) according to described channel distribution information and described indication, by a cochain (UL) channel or once chain (DL) channel communicates.
18. integrated circuit as claimed in claim 17 (IC) is characterized in that described being designated as at described cochain (UL) channel or the utilization of one group of mapping combination of the channelization code of described chain (DL) channel down.
19. integrated circuit as claimed in claim 17 (IC) is characterized in that described being designated as at described cochain (UL) channel or the described utilization of a wireless transmission/receive unit (WTRU) the particular cycle redundancy check (CRC) of chain (DL) channel down.。
20. integrated circuit as claimed in claim 19 (IC), the described Cyclical Redundancy Check (CRC) that it is characterized in that described cochain (UL) channel are inverse version at a wireless transmission/receive unit (WTRU) the particular cycle redundancy check (CRC) of described down chain (DL).。
21. integrated circuit as claimed in claim 20 (IC) is characterized in that a wireless transmission/receive unit (WTRU) particular cycle redundancy check (CRC) is utilize to divide the identification symbol (ID) of tasking described wireless transmission/receive unit (WTRU) and produce.
22. integrated circuit as claimed in claim 17 (IC) is characterized in that described indication is the specific sequence (masking sequence) of sheltering of a wireless transmission/receive unit (WTRU).
23. integrated circuit as claimed in claim 17 (IC) is characterized in that described indication is to signal and transmit by Radio Resource control.
24. integrated circuit as claimed in claim 17 (IC) is characterized in that described indication is to signal and transmit by Radio Resource control.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US52304903P | 2003-11-18 | 2003-11-18 | |
| US60/523,049 | 2003-11-18 | ||
| US10/902,740 | 2004-07-29 |
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| CN2746688Y true CN2746688Y (en) | 2005-12-14 |
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| CNU2004201174407U Expired - Lifetime CN2746688Y (en) | 2003-11-18 | 2004-11-18 | Radio communication system for providing channel distribution information for supporting UL and DL channel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101379782A (en) * | 2006-01-31 | 2009-03-04 | 交互数字技术公司 | Method and apparatus for providing and utilizing a non-contention based channel in a wireless communication system |
| CN105846981A (en) * | 2010-01-08 | 2016-08-10 | 交互数字专利控股公司 | Wireless transmit/receive unit's (WTRU) and method for establishing Timing Advance (TA) |
-
2004
- 2004-11-18 CN CNU2004201174407U patent/CN2746688Y/en not_active Expired - Lifetime
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| US11160058B2 (en) | 2006-01-31 | 2021-10-26 | Interdigital Technology Corporation | Method and apparatus for providing and utilizing a non-contention based channel in a wireless communication system |
| CN101379782A (en) * | 2006-01-31 | 2009-03-04 | 交互数字技术公司 | Method and apparatus for providing and utilizing a non-contention based channel in a wireless communication system |
| US8619747B2 (en) | 2006-01-31 | 2013-12-31 | Interdigital Technology Corporation | Method and apparatus for providing and utilizing a non-contention based channel in a wireless communication system |
| US9203580B2 (en) | 2006-01-31 | 2015-12-01 | Interdigital Technology Corporation | Method and apparatus for providing and utilizing a non-contention based channel in a wireless communication system |
| US11917623B2 (en) | 2006-01-31 | 2024-02-27 | Interdigital Technology Corporation | Method and apparatus for providing and utilizing a non-contention based channel in a wireless communication system |
| US9781708B2 (en) | 2006-01-31 | 2017-10-03 | Interdigital Technology Corporation | Method and apparatus for providing and utilizing a non-contention based channel in a wireless communication system |
| CN101379782B (en) * | 2006-01-31 | 2013-05-22 | 交互数字技术公司 | Method and apparatus for providing and utilizing a non-contention based channel in a wireless communication system |
| US10271318B2 (en) | 2006-01-31 | 2019-04-23 | Interdigital Technology Corporation | Method and apparatus for providing and utilizing a non-contention based channel in a wireless communication system |
| US11902981B2 (en) | 2006-01-31 | 2024-02-13 | Interdigital Technology Corporation | Method and apparatus for providing and utilizing a non-contention based channel in a wireless communication system |
| CN105846981B (en) * | 2010-01-08 | 2019-03-26 | 交互数字专利控股公司 | A kind of WTRU and the method for settling time lead |
| US10477493B2 (en) | 2010-01-08 | 2019-11-12 | Interdigital Patent Holdings, Inc. | Maintaining time alignment with multiple uplink carriers |
| US11722973B2 (en) | 2010-01-08 | 2023-08-08 | Interdigital Patent Holdings, Inc. | Maintaining time alignment with multiple uplink carriers |
| US11272466B2 (en) | 2010-01-08 | 2022-03-08 | Interdigital Patent Holdings, Inc. | Maintaining time alignment with multiple uplink carriers |
| CN105846981A (en) * | 2010-01-08 | 2016-08-10 | 交互数字专利控股公司 | Wireless transmit/receive unit's (WTRU) and method for establishing Timing Advance (TA) |
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Expiration termination date: 20141118 Granted publication date: 20051214 |