CN101601218A - Be used for Frame Protocol and the signaling used in high-speed transfer - Google Patents
Be used for Frame Protocol and the signaling used in high-speed transfer Download PDFInfo
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- CN101601218A CN101601218A CN200880003486.7A CN200880003486A CN101601218A CN 101601218 A CN101601218 A CN 101601218A CN 200880003486 A CN200880003486 A CN 200880003486A CN 101601218 A CN101601218 A CN 101601218A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0002—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate
- H04L1/0003—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the transmission rate by switching between different modulation schemes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0009—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the channel coding
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0025—Transmission of mode-switching indication
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
- H04L1/0026—Transmission of channel quality indication
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Abstract
The present invention relates to a kind of method and apparatus, be used for comprising at least one temporary identifier at the Frame that provides for transmission, and the power level determining unit, be used for comprising following value that this value disposes the adaptive modulation and coding that is used for communication channel at least at Frame.Frame can transmit by Iur interface or Iub interface.This value can also dispose the power control that is used for communication channel.This value can relate to the transmission power level or the channel quality information of communication channel.
Description
Cross-reference to related applications
The application requires the U.S. Provisional Application No.60/898 of submission on January 31st, 2007, and 833 priority is incorporated herein by reference in its entirety.
Technical field
The present invention relates to the transmission in the Long Term Evolution of Universal Mobile Telecommunications System (UMTS) terrestrial radio access network (UTRAN) or UTRAN, more specifically, the UTRAN high-speed downlink packet that relates in CELL_FACH (forward access channel) state inserts (HSDPA).
Background technology
As known in the art, one of Wideband Code Division Multiple Access (WCDMA) (WCDMA)/Universal Mobile Telecommunications System (UMTS) communication system further development is to have defined the system that high-speed downlink packet inserts (HSDPA) that is known as.HSDPA operates the possibility that it provides the potentiality of peak value data transfer rate and has spectral efficient as the communication channel that the time shares.HSDPA has improved power system capacity and has improved user data rate in down link, so-called down link, i.e. and transfer of data from radio base station (RBS) to subscriber equipment (UE), wherein radio base station is also known as the Node B server in the UMTS system.
Fig. 1 shows the radio interface protocol structure of HSDPA.It shows the relation of different layers between UE, Node B and the various radio network controller (RNC).In Fig. 1, RLC is a RLC layer, and MAC is a media access control layer, and PHY is a physical layer.MAC-hs (MAC at a high speed) is the new MAC entity that stops in Node B, is used to control the HS-DSCH transport layer.MAC-c (common MAC) is the entity among the UE, and its service of using physical layer is sent to reciprocity MAC-c entity among the RNC with MAC-c PDU (protocol Data Unit).MAC-c/sh is responsible for PCH (paging channel), FACH (forward access channel), DSCH (downlink sharied signal channel) and RACH (Random Access Channel).MAC-d (special-purpose MAC) is responsible for dedicated channel (DCH), and stations in Serving RNC, and MAC-c/sh is arranged in control RNC.L1, L2 are the transmission network layer protocols between Node B and the Serving RNC.
The HS-DSCH channel is the downlink transmission channel of being shared by a plurality of UE.Down link DPCH (downlink dedicated physical channels) of HS-DSCH and one of each any active ues or F-DPCH and one or more shared control channel (HS-SCCH) are associated.HS-DSCH for example can use the beam shaping antenna transmitting on the part in the sub-district on the whole sub-district or only.
Although HSDPA is used in the less relatively period (Transmission Time Interval of HSDPA system TTI in other words is 2ms) to send the effective ways of relative mass data, yet, this performance only could be used when subscriber equipment is operated in dedicated channel status (CELL_DCH state), in other words, be connected with physical layer between the Node B at UE and set up and after this layer connection have the dedicated channel of distributing to it, could use.UE is to the transformation of dedicated channel status (CELL_DCH state) and set up HSDPA and connect and may consume one second time.Therefore, may be longer than actual transfer of data to the time spent of the transformation of CELL-DCH state, for example, when having only low volume data to transmit.
And, when UE is in the process that state is become the CELL_DCH state, must required state be changed by forward access channel (FACH) and be addressed to UE, and FACH is considerably slower than after a while HSDPA transmission channel and robust more not.Before the transformation of CELL_DCH state and in the process, the CELL_FACH state need the two be mapped on the forward access channel (FACH) with downlink-dedicated control channel (DCCH) and downlink-dedicated Traffic Channel (DTCH).
In the time of may wishing in other states outside UE is in CELL_DCH, realize HSDPA.For example, may be desirably in the CELL_FACH state and realize HSDPA.Realize that in the CELL_FACH state HSDPA can be called the HS-DSCH in the CELL_FACH state, perhaps common HS-DSCH.Be appreciated that and run through following discussion, these terms can exchange use.If realize HSDPA in the CELL_FACH state, then definition Frame Protocol that will be used by Iub and Iur interface and parameter and Node B application protocol (NBAP) and radio network system application protocol (RNSAP) may be useful.The present invention solves Frame Protocol and the parameter of the HS-DSCH that can be used for the CELL_FACH state.Yet, be appreciated that and can use any communications status known in the art or exploitation after a while to realize the illustrative embodiments that the present invention discusses.
Summary of the invention
According to a first aspect of the present invention, provide a kind of be used to Frame is provided in case the transmission method, described method can comprise: comprise at least one temporary identifier in described Frame; And in described Frame, comprising following value, this value disposes the adaptive modulation and coding that is used for communication channel at least.Described Frame can transmit on Iub interface.
According to a first aspect of the present invention, described value can also dispose the power control that is used for communication channel.
According to a first aspect of the present invention, described value can be relevant with the transmission power level of communication channel.
According to a first aspect of the present invention, described value can be relevant with the channel quality information of communication channel.
According to a first aspect of the present invention, described method can also comprise: comprise the information relevant with transmission power level in described Frame.
According to a first aspect of the present invention, described Frame can be an employed data with existing frame in the high-speed downlink shared channel transmission.
According to a first aspect of the present invention, described method can also comprise: comprise at least one field, described field indication network element is the processing said data frame how.When in the CELL_FACH state, adopting the high-speed downlink shared channel transmission, described at least one field can indicate network element to come the processing said data frame according to first mode, and when adopting high-speed downlink packet to insert transmission in the CELL_FACH state, described at least one field can indicate network element to come the processing said data frame according to second mode.
According to first execution mode of the present invention, described Frame can dispose and be used to carry protocol Data Unit.
According to a first aspect of the present invention, described Frame can dispose and be used to carry the protocol Data Unit that comprises Logic Channel Identifier.
According to a first aspect of the present invention, when in the CELL_FACH state, adopting the high-speed downlink shared channel transmission, can comprise described sign and described value.
According to a first aspect of the present invention, described at least one temporary identifier can be provided with in the spare extension of data with existing frame.
According to a first aspect of the present invention, described at least one temporary identifier can be the radio net temporary identifier.
According to a first aspect of the present invention, described at least one temporary identifier can be the sign that is associated with at least one expection recipient of at least one packet.
According to a first aspect of the present invention, described method can also comprise: comprise and the relevant designator of described at least one temporary mark it has been designated as new user equipment allocation described at least one temporary mark.
According to a first aspect of the present invention, described method also comprises: comprise following value in described Frame, whether the channel quality information of the communication channel of storing in this value indication network element is effective.
A kind of computer program comprises the computer-readable storage organization, includes computer program code on it and carries out for computer processor, and wherein said computer program code comprises the instruction that is used to carry out according to the method for a first aspect of the present invention.
According to a second aspect of the present invention, provide a kind of and be used for providing at least first control frame and second control frame so that the method for transmission, described method can comprise: comprise at least one temporary mark in described first control frame and second control frame; And in described first control frame and second control frame, comprise sign.At least described first control frame and second control frame can transmit on Iub interface.
According to a second aspect of the present invention, described at least one temporary mark can be the sign that is associated with at least one expection recipient of at least one packet.
According to a second aspect of the present invention, described method can also comprise: comprise at least one field in described first control frame and second control frame, described at least one field can indicate network element how to handle described first control frame and second control frame.
According to a second aspect of the present invention, described first control frame can be the requests for capacity control frame.
According to a second aspect of the present invention, described second control frame can be the capacity allocation control frame.
According to a second aspect of the present invention, described at least first control frame and second control frame can be the expansions of existing high-speed downlink shared channel control frame.
According to a second aspect of the present invention, described first control frame and second control frame can dispose the current control that is used at least one protocol Data Unit.
According to a second aspect of the present invention, described at least one protocol Data Unit can comprise Logic Channel Identifier.
A kind of computer program comprises the computer-readable storage organization, includes computer program code on it and carries out for computer processor, and wherein said computer program code comprises the instruction that is used to carry out according to the method for a second aspect of the present invention.
According to a third aspect of the present invention, provide a kind of be used to frame is provided in case the transmission method, described method can comprise: comprise at least one field in described frame, how described field indication network entity handles described frame; And come transferring data frames by the Iur interface.Described Frame can be the expansion frame of existing forward access channel frame.
According to a third aspect of the present invention, described frame can be a Frame, and its configuration is used to carry at least one protocol Data Unit that comprises Logic Channel Identifier.
According to a third aspect of the present invention, described frame can comprise at least one temporary mark.
According to a third aspect of the present invention, temporary mark can be Drift Radio Network Controller/BSS radio net temporary mark.
According to a third aspect of the present invention, described frame can be the current control frame.
According to a third aspect of the present invention, described frame can be the requests for capacity control frame.
According to a third aspect of the present invention, described field can be indicated: when adopting the high-speed downlink shared channel transmission in the CELL_FACH state, described frame can be considered as Logic Channel Identifier, and when adopting the high-speed downlink shared channel transmission, described frame is considered as the Common transport channel priority indicator.
According to a third aspect of the present invention, described temporary mark can be a drift radio network controller radio net temporary mark.
According to a third aspect of the present invention, described method can also comprise: comprise at least one mark and label in described frame.
According to a third aspect of the present invention, described method can also comprise: comprise the designator relevant with subscriber equipment in described frame.
A kind of computer program comprises the computer-readable storage organization, includes computer program code on it and carries out for computer processor, and wherein said computer program code comprises the instruction that is used to carry out according to the method for a third aspect of the present invention.
According to a fourth aspect of the present invention, provide a kind of be used to Frame is provided in case the transmission device, described device can comprise: data cell is used for comprising at least one temporary identifier at described Frame; And the power level determining unit, be used for comprising following value that described value disposes the adaptive modulation and coding that is used for communication channel at least at described Frame.
According to a fourth aspect of the present invention, described value can also dispose the power control that is used for communication channel.
According to a fourth aspect of the present invention, described value can be relevant with the transmission power level of communication channel.
According to a fourth aspect of the present invention, described value can be relevant with the channel quality information of communication channel.
According to a fourth aspect of the present invention, described device can also comprise channel quality validity module, is used for comprising following value at described Frame, and whether the channel quality information of the communication channel of storing in the described value indication network element is effective.
According to a fourth aspect of the present invention, described device can also comprise the field specifier module, is used for comprising at least one field at described Frame, and described field indication network element is the processing said data frame how.Fourth aspect in this respect in, when in the CELL_FACH state, adopting the high-speed downlink shared channel transmission, described at least one field indication network element will come the processing said data frame according to first mode, and when adopting high-speed downlink packet to insert transmission, described at least one field indication network element will come the processing said data frame according to second mode.
According to a fourth aspect of the present invention, described device can dispose and be used to provide described Frame so that transmit by Iub interface.
According to a fourth aspect of the present invention, described Frame can dispose and be used to carry protocol Data Unit.
According to a fifth aspect of the present invention, providing a kind of is used for providing at least first control frame and second control frame so that the device of transmission, described device can comprise: data cell is used for comprising the sign that is associated with at least one expection recipient of at least one packet at described first control frame and second control frame; And the sign identify unit, be used for comprising at least one sign at described first control frame and second control frame.
According to a fifth aspect of the present invention, described device can also comprise: the field identification module is used for comprising at least one field at described first control frame and second control frame.Aspect the 5th in this respect in, described at least one field can indicate network element how to handle described first control frame and second control frame.
According to a sixth aspect of the present invention, provide a kind of and be used to frame is provided so that the device of transmission, described device can comprise: the field identification module is used for comprising at least one field at described frame how described field indication network element handles described frame; And data cell, be used for comprising at least one temporary identifier at described Frame.Described device can dispose and be used for transmitting described frame by the Iur interface.
According to a sixth aspect of the present invention, described field can be indicated: when adopting the high-speed downlink shared channel transmission in the CELL_FACH state, described frame can be considered as Logic Channel Identifier, and when adopting the high-speed downlink shared channel transmission, described frame is considered as the Common transport channel priority indicator.
According to a seventh aspect of the present invention, a kind of method that is used to dispose the network element parameter is provided, whether described method can comprise: provide about temporary identifier and indicate specific to first of subscriber equipment; Second indication that whether is configured to support the high-speed downlink shared channel in the CELL_FACH state about described subscriber equipment is provided; Provide with the CELL_FACH state in the relevant information of power of High-Speed Shared Control Channel; First value relevant with being interrupted receiving cycle length is provided; Second value relevant with the forward access channel measurement Cycle Length is provided; The information relevant with the maximum power of High-Speed Physical Downlink Shared Channel is provided; And provide and the 3rd relevant value of information re-transmission.
According to a seventh aspect of the present invention, at least one parameter that is disposed can be specific to logic channel.
According to a eighth aspect of the present invention, a kind of method that is used to dispose the network element parameter is provided, described method can comprise: the designator that whether is configured to support the high-speed downlink shared channel in the CELL_FACH state about radio network controller is provided; And provide request at public transmission channel resource.
According to a eighth aspect of the present invention, described radio network controller can be the service radio network controller, and described service radio network controller can dispose the request that is used at public transmission channel resource and transfers to drift radio network controller.
Description of drawings
By the detailed description of considering hereinafter to provide in conjunction with the accompanying drawings, above-mentioned and other purposes of the present invention, feature and advantage will become and easily see, wherein:
Fig. 1 shows the radio interface protocol structure that high-speed downlink packet inserts (HSDPA).
Fig. 2 shows the Frame according to embodiment of the present invention.
Fig. 3 A shows the carry-on protocol Data Unit structure of Frame of Fig. 2.
Fig. 3 B shows the carry-on protocol Data Unit structure of Frame of Fig. 2.
Fig. 4 shows the control frame according to embodiment of the present invention.
Fig. 5 shows another control frame according to embodiment of the present invention.
Fig. 6 shows the Frame according to embodiment of the present invention.
Fig. 7 shows the Frame according to embodiment of the present invention.
Fig. 8 A shows the control frame according to embodiment of the present invention.
Fig. 8 B shows another control frame according to embodiment of the present invention.
Fig. 9 A shows the control frame according to embodiment of the present invention.
Fig. 9 B shows another control frame according to embodiment of the present invention.
Figure 10 shows the device that is used to carry out the various execution modes of the present invention.
Embodiment
With reference to a plurality of execution modes, the present invention is described in the mode of example.The present invention describes in the context of cellular communication system and particularly HSDPA WCDMA/UMTS communication system.Yet, be appreciated that the present invention can be suitable for realizing equally in any communication system that realizes the packet scheduling, particularly in need solving the communication system of the delay of data packet transmission and spectrum efficiency problem, those realize.
The communication system that embodiments of the present invention can realize therein can comprise at least one subscriber equipment (UE).Subscriber equipment for example can be a mobile phone, but also can be laptop computer, personal digital assistant or any other suitable equipment that for example can communicate.
Subscriber equipment is wirelessly communicated by letter with a series of radio base stations (RBS) by radio.Radio base station is also referred to as Node B in the UMTS standard.In describing hereinafter, term " Node B " and " radio base station (RBS) " are used interchangeably.
Each subscriber equipment is arranged and is used for and can communicates by letter with a more than RBS, and similarly, each RBS arranges and is used for and can communicates by letter with a more than UE.RBS also communicates by letter with radio network controller (RNC) (it is also referred to as base station controller (BSC) in GSM standard).RNC can also communicate by letter with core net (CN).Be appreciated that in the Long Term Evolution of 3GPP, may do not have central RNC, but the function of RNC is distributed to entities of various kinds or network element.CN can also communicate with other networks, and these networks for example are other public land mobile network (PLMN) or the computer network that is called " the Internet ".
Can realize in the following manner that high-speed downlink packet inserts (HSDPA) communication.Subscriber equipment (UE) is gone up to Serving RNC in Common Control Channel (CCCH) via selected sub-district and is sent radio resource controller (RRC) connection request message, thereby initiate the foundation of radio resource control connection, wherein selected sub-district is the sub-district of radio base station (RBS) (Node B also promptly).This connection request comprises the parameter of initial user equipment (UE) ident value and connects the reason of setting up.
Radio resource control (RRC) connection and decision that service radio network controller (RNC) is established to this UE are used for this specific RRC connection with dedicated channel, and are that this radio resource control connection is distributed UTRAN (UMTS terrestrial radio access network) RNTI (radio net temporary identifier) and radio resource L1, L2.In the time will setting up dedicated channel, to RBS sending node B application protocol (NBAP) message, promptly " radio link is set up request information.This radio link is set up the parameter that is comprised in the request and is comprised: cell ID value, time slot (only at time division multiplexing (TDD) communication), user code (only at TDD) and the power control information etc. that are used for the configuration parameter of DL DPCH or F-DPCH, the up link scrambler that will use (only at frequency division multiplexing (FDD) communication), will use.
The reception of RBS Resources allocation, beginning uplink physical channel, and utilize Node B application protocol (NBAP) message (" radio link is set up response " message also promptly) to respond.Radio link setup response message is included as that Iub transfer of data carrier definition signaling link stops, the transport layer addressing information (such as, ATM self-adaptive layout type 2 (AAL2) address, AAL2 binding logo) parameter.The service radio network controller uses Access Link Control Application Part agreement (ALCAP) to initiate the foundation of Iub transfer of data carrier.This request comprises the AAL2 binding logo, so that Iub transfer of data carrier is tied to dedicated channel.Setting up the request of Iub transfer of data carrier is confirmed by RBS.Alternatively, Internet protocol (IP) can be used for transport layer, but not uses AAL2.
RBS and Serving RNC are set up the synchronous of Iub and Iur transfer of data carrier by means of the suitable dedicated channel frame protocol of exchange (for example, " downlink synchronization " message and " uplink synchronisation " message).After synchronously, RBS begins the downlink transmission to UE.
Send a message from Serving RNC to UE, this message is to go up radio resource controller (RRC) connection that sends in Common Control Channel (CCCH) to set up message.The RRC connection is set up message and is comprised following parameter: the initial UE ident value, U-RNTI (in the CELL_FACH state and CELL/URA_PCH in UTRAN inner effectively), C-RNTI (sub-district in the CELL_FACH state is effectively inner), the ability update demand, TFS Transport Format Set, transport format combination set, frequency, down-link frequencies scrambler (only FDD), time slot (only TDD), user code (only TDD), power control information, and define among the 3GPP standard TS25.331 part 10.2.40, be used for disposing HSDPA especially and go up other data that signaling connects.
RBS realizes uplink synchronisation, and utilizes NBAP message (" radio link recovers indication ") to come notification service RNC.On Dedicated Control Channel (DCCH), RBS is sent to Serving RNC with the RRC connection setup complete message from UE via service.This RRC connection setup complete message comprises following parameter: integrity information, encrypted message and UE radio access capability.
When UE is in the CELL_FACH state, also, in the time of among HS-DSCH in the CELL_FACH state or the common HS-DSCH, can use HSDPA.In the first aspect of exemplary embodiment of the invention, provide the Frame shown in Fig. 2.When having only transport vehicle to realize HS-DSCH in the CELL_FACH state, can use this Frame.This Frame can also be with the Frame Protocol that acts on Iub interface.
The Frame of Fig. 2 for example can comprise H-RNTI (radio net temporary identifier) value in the payload part of this Frame.H-RNTI does not have effective C-RNTI (cell-radio network temporary identifier) or when C-RNTI is invalid after the gravity treatment of sub-district, is assigned to the public identifier value of subscriber equipment (UE) as UE.Can assign unique H-RNTI for each UE, it can be used for identifying each that be arranged in physical layer when UE has effective C-RNTI and transmit the expection recipient of grouping, and dedicated H-RNTI can be got identical value with the effective C-RNTI that distributes to UE.The H-RNTI value is included in the Frame shown in Figure 2, thereby Node B can be identified at be used between HSDPA transmission period by the data in physical layer 1 (L1) transmit data frames (for example, Frame shown in Figure 2), will use which H-RNTI.CRNC (control radio network controller) can be provided with this H-RNTI value in the Frame during the HS-DSCH in the CELL_FACH state, and when carrying out conventional H SDPA transmission in the sub-district this value can not be set.H-RNTI can be included in the spare extension part of Frame, and if this is the case, then need carry out corresponding change at new IE sign (New IE Flag).
The Frame of Fig. 2 for example can comprise U-RNTI (radio net temporary identifier) value in the payload part of Frame.Can during the HS-DSCH in the CELL_FACH state, comprise U-RNTI, but in conventional H SDPA transmission, not comprise it.If U-RNTI is included in the spare extension part of Frame, then correspondingly need to change new IE sign.
Frame shown in Figure 2 can also comprise transmission power level (its can be used for the HS-DSCH of CELL_FACH state during, the control of the power in the sub-district), and the adaptive modulation and coding that is used for the HS-DSCH of CELL_FACH state.Can during the HS-DSCH in the CELL_FACH state, comprise transmission power level, but between conventional H SDPA transmission period, not comprise it.If transmission power level is included in the spare extension part of Frame, then may need correspondingly to change new IE sign.Be appreciated that in embodiments of the present invention the form of transmission power level can be that channel quality information (CQI) is reported or is contained in wherein.Transmission power level is relevant with channel quality, perhaps can be the designator of channel quality.Therefore, be appreciated that the purpose for power control, scheduling of resource and adaptive modulation and coding, transmission power level and channel quality information can be configured, to realize identical purpose.
Frame shown in Figure 2 can also comprise MAC-d/c PDU length field.If Frame is the expansion of existing HS-DSCH Frame, then MAC-d PDU length field can be renamed length into MAC-d/c PDU.MAC-d/c PDU length field allows Node B: if adopted HS-DSCH in the CELL_FACH state, then this field is considered as MAC-c PDU length or MAC-d PDU length; If adopted conventional H SDPA, then this field is considered as MAC-d PDU length.
Frame shown in Figure 2 also comprises MAC-d/c PDU.If Frame is the expansion of existing HS-DSCH Frame, then MAC-d PDU field can be renamed PDU into MAC-d/c.MAC-d/c PDU allows Node B: if adopted HS-DSCH in the CELL_FACH state, then this field is considered as MAC-c PDU or MAC-d PDU; If adopted conventional H SDPA, then this field is considered as MAC-d PDU.
Frame shown in Figure 2 can also comprise new H-RNTI designator (being expressed as NH in Fig. 2) in the reserve piece of data frame header.In alternative, can be with Flush (washing away) field as new H-RNTI designator.The NH designator can be used for showing: the H-RNTI value has been distributed to new or different subscriber equipmenies (UE) from the previous UE that distributes of this value.If adopted the HS-DSCH in the CELL_FACH state, then CRNC is provided with new H-RNTI value, but between conventional H SDPA transmission period this value is not set.If new H-RNTI is made as 0, then Node B will be used the quality information of memory channel (CQI) of this H-RNTI, so that transmit HS-DSCH data in the CELL_FACH state by air interface.If new H-RNTI value is made as 1, then Node B will be washed away the CQI of the storage information of this H-RNTI, and restart to operate at the CQI of H-RNTI after storing CQI information washing away.New H-RNTI can be used for the power control based on the CQI report.
Frame shown in Fig. 2 can also comprise CmCH-PI/ logic channel ID.CmCH-PI represents the Common transport channel priority indicator.If Frame is the expansion of existing HS-DSCH Frame, then can be with CmCH-PI field RNTO CmCH-PI/ logic channel.If adopted the HS-DSCH in the CELL_FACH state, then Node B can be considered as this value logic channel ID.The priority that is associated with logic channel ID can be pre-configured in Node B based on Node B application protocol (NBAP), and Node B can be come operation dispatching based on this information.Between conventional H SDPA transmission period, Node B is considered as CmCH-PI with this value.
In the second aspect of the illustrative embodiments of above being discussed with reference to figure 2, the H-RNTI value is not must be arranged in the spare extension of Frame.At the specific H-RNTI of UE, the H-RNTI value must be provided with in Frame, and only new H-RNTI designator (NH) is set in Frame during the specific H-RNTI of UE.
Frame shown in Figure 2 can be used for layer 2 (L2) protocol Data Unit (PDU).For example, the Frame of Fig. 2 can be used for carrying the PDU structure shown in Fig. 3 A.The Frame of Fig. 2 can also be used to carrying the PDU structure shown in Fig. 3 B, and this PDU structure is at common unsettled U.S. Provisional Application No.60/852, goes through in 331, by reference it is incorporated into fully at this.PDU shown in Fig. 3 B can carry in the execution mode of the Frame of Fig. 2, and wherein the execution mode of this Frame is the HS-DSCH Frame of expansion.In the case, Node B or drift radio network controller (DRNC) can be considered as logic channel ID with CmCH-PI/ logic channel ID.
Be appreciated that Frame Protocol shown in Figure 2 can be implemented as new Frame Protocol, perhaps be embodied as the expansion of existing the 6th edition HS-DSCH Frame Protocol.If the Frame Protocol of Fig. 2 is embodied as expansion, then will allow to use identical Frame Protocol support in CELL_DCH state and the CELL_FACH state HSDPA the two.How to realize that required information will be identical in the Frame Protocol no matter be further appreciated that the Frame Protocol of Fig. 2.Be further appreciated that Frame Protocol back compatible shown in Figure 2 the 6th edition and the 5th edition HS-DSCH Frame.
Adopt current control to avoid the buffering area in the receiving node (also promptly, CRNC or Node B) to overflow.Current control is useful for the HS-DSCH in the CELL_FACH state, because the MAC-hs function is arranged in Node B.In existing Iub HS-DSCH current control, CRNC is notified to Node B with current buffer state, and how many data cells Node B notice CRNC RNC in the specific period can transmit to Node B.Among the HS-DSCH in the CELL_FACH state,, carry out current control at each logic channel ID (perhaps priority) for each public H-RNTI.If adopted the specific H-RNTI of UE, then each the logic channel ID (perhaps priority) at the set of the specific H-RNTI of UE carries out current control.
According to illustrative embodiments of the present invention, current control can realize by the existing control frame of expansion (also promptly, HS-DSCH requests for capacity and HS-DSCH capacity allocation), perhaps realize by introducing new control frame.The control frame that obtains is identical for each alternative.Control frame shown in Fig. 4 and Fig. 5 allows the HS-DSCH PDU in the CELL_FACH state that is transmitted is carried out current control.
In the first aspect of exemplary embodiment of the invention,, only set up a transport vehicle for the HS-DSCH in the CELL_FACH state in the sub-district.According to this first aspect, Fig. 4 shows the requests for capacity control frame.The requests for capacity control frame of Fig. 4 can comprise the new ID of H-RNTI form.If adopt the HS-DSCH in the CELL_FACH state, this new ID then is set, but between conventional H SDPA transmission period, it is not set.The requests for capacity control frame can also comprise new IE sign.Requests for capacity control frame shown in Figure 4 can also comprise CmCH-PI/ logic channel ID.If the requests for capacity control frame is the expansion of existing control frame, then can be with this field from CmCH-PI RNTO CmCH-PI/ logic channel ID.If adopt the HS-DSCH in the CELL_FACH state, then Node B can be considered as the value of this field logic channel ID, and the priority that is associated with this logic channel ID disposes in Node B, and Node B can be come operation dispatching and current control based on this information.If adopt conventional H SDPA transmission, Node B can be considered as CmCH-PI with this field.
Fig. 5 shows the capacity allocation control frame according to exemplary embodiment of the invention.Capacity allocation control frame shown in Figure 5 can be used for the HS-DSCH of CELL_FACH state.This capacity allocation control frame can comprise H-RNTI value, new IE sign and CmCH-PI/ logic channel id field.If the capacity allocation control frame is the expansion of existing control frame, then can the CmCH-PI field RNTO CmCH-PI/ logic channel ID of control frame will be had.If adopt the HS-DSCH in the CELL_FACH state, then Node B can be considered as the value of this field logic channel ID, and the priority that is associated with logic channel ID disposes in Node B, and Node B is come operation dispatching and current control based on this information.If adopt conventional H SDPA transmission, Node B can be considered as CmCH-PI with this field.
In the first aspect of the exemplary embodiment of the invention of being discussed with reference to figure 4 and Fig. 5,, then must in the spare extension of existing control frame, H-RNTI be set in the above if use existing control frame.In this illustrative embodiments on the other hand, for example when using public H-RNTI,, then need not in the spare extension of control frame, H-RNTI to be set if set up transport vehicle at each the public H-RNTI in the sub-district.Yet, in this case,, H-RNTI must be set in control frame at the specific H-RNTI of subscriber equipment (UE).
Be appreciated that Fig. 4 and control frame shown in Figure 5 also can be used for the Iub/IurHS-DSCH control frame, so that carry out the current control be used for the PDU shown in Fig. 3 A and Fig. 3 B at the subscriber equipment among the CELL_DCH (UE).Be further appreciated that the control frame back compatible shown in Fig. 4 and Fig. 5 the 5th edition and the 6th edition control frame.
In some illustrative embodiments of the present invention, for example when the PDU data structure shown in the transmission diagram 3A, as known in the art, can use Frame Protocol at Iur FACH.Yet, use Frame (for example Frame shown in Fig. 6) that the PDU data structure of Fig. 3 B is transferred to CRNC or DRNC (drift radio network controller) may be favourable.Frame among Fig. 6 can be new data frame or growth data frame.Frame shown in Figure 6 can comprise CmCH-PI/ logic channel id field.If this Frame is the growth data frame, then can be with the CmCH-PI field RNTO CmCH-PI/ logic channel ID of data with existing frame.If use the HS-DSCH in the CELL_FACH state, then CRNC or DRNC can be considered as the value of this field logic channel ID.The priority that is associated with this logic channel ID disposes in CRNC or DRNC, and CRNC or DRNC come operation dispatching based on this information.If adopt FACH, then Node B is considered as CmCH-PI with this field.Be appreciated that Frame back compatible shown in Figure 6 the 5th edition and the 6th edition.Alternatively, as known in the art, the Frame Protocol that is used for Iur HS-DSCH can be used for the PDU data structure of Fig. 3 B is transferred to CRNC or DRNC (drift radio network controller).Frame among Fig. 7 can be the growth data frame.Frame shown in Figure 7 can comprise D-RNTI field and UE ID type indicator.If adopt the HS-DSCH in the CELL_FACH state, this new ID then is set, but between conventional H SDPA transmission period, it is not set.The new ID of among Fig. 7 other is identical with Fig. 6.Frame shown in Figure 7 can also comprise power control information.This power control information can be used by DRNC, for example is used for determining the value of transmission power level.Be appreciated that Frame back compatible shown in Figure 7 the 5th edition and the 6th edition.
The current control of carrying out at the HS-DSCH in the CELL_FACH state by Iur may be useful.Can use Iur FACH current control, wherein SRNC is notified to DRNC with current buffer state, and how many data this SRNC of DRNC notice SRNC can transmit.Among the HS-DSCH in the CELL_FACH state, current control is carried out at each logic channel ID (perhaps priority) of the specific H-RNTI set of public H-RNTI or UE.Fig. 8 A and Fig. 8 B show control frame, and it can be used for the current control by the HS-DSCH data of the CELL_FACH state of Iur.Control frame shown in Fig. 8 A and Fig. 8 B all comprises CmCH-PI/ logic channel id field.If control frame is the expansion of existing control frame, then can be with CmCH-PI field RNTO CmCH-PI IE/ logic channel ID, shown in Fig. 8 A and Fig. 8 B.If the HS-DSCH data in the transmission CELL_FACH state, then SRNC or DRNC can be considered as the value of this field logic channel ID.The priority that is assigned to this logic channel ID is pre-configured in SRNC or DRNC, and RNC carries out current control based on this information.If use the HSDPA transmission, then RNC is considered as CmCH-PI with this field.Alternatively, as known in the art, the Frame Protocol that is used for Iur HS-DSCH can be used for the IurHS-DSCH current control of CELL_FACH state.Control frame among Fig. 9 A and Fig. 9 B can be the expansion control frame.Control frame among Fig. 9 A can comprise the D-RNTI field, and the frame among Fig. 9 B can comprise the S-RNTI field.If adopt the HS-DSCH in the CELL_FACH state, these new IE then are set, but between conventional H SDPA transmission period, they are not set.Fig. 9 A is identical with Fig. 8 B with Fig. 8 A with other new ID among Fig. 9 B.Be appreciated that the control frame back compatible shown in Fig. 9 A and Fig. 9 B the 5th edition and the 6th edition.
In another illustrative embodiments of the present invention, can following configuration be used for the parameter of Node B application protocol (NBAP).CRNC is configured to down parameter at each unit, and these parameters and public H-RNTI and the specific H-RNTI set of UE are associated.The indication that UE is specific, whether its indication H-RNTI is that UE is specific.The UE ability that is used for the HS-DSCH of CELL_FACH state, also, whether specific UE can participate among the HS-DSCH in the CELL_FACH state.HS-SCCH power excursion or maximum HS-SCCH power.HS-SCCH is interrupted reception (DRX) Cycle Length coefficient.FACH measures the generating period length factor.Maximum HS-PDSCH power.Number of retransmissions, also, if based on confirming that (ACK) feedback does not repeat.Existing parameter known in the art also can be used for the HS-DSCH configuration of CELL_FACH state.
Following parameter is that logic channel is specific.Logic channel ID, for example, if application is according to the PDU structure of Fig. 3 B.Dispatching priority designator, MAC-c PDU size index and MAC-c PDU size.Existing parameter known in the art can be used for the HS-DSCH configuration of CELL_FACH state.
In response to the request from CRNC, Node B can be configured to down parameter to be used for the HS-DSCH of CELL_FACH state.HS-DSCH initial capacity in the CELL_FACH state is distributed, and the cell ability of the HS-DSCH in the CELL_FACH state (in AUDIT and resource status indication).Existing parameter known in the art also can be used for the HS-DSCH configuration of CELL_FACH state.
According to illustrative embodiments of the present invention, in order to realize the PDU structure shown in Fig. 3 B, radio network system applying portion (RNSAP) can comprise following parameter.Send to HS-DSCH the cell capacity container of SRNC, in the CELL_FACH state from DRNC and support designator.HS-DSCH sign in the CELL_FACH state, its indication SRNC supports the HS-DSCH in the CELL_FACH state, this sign is the public transmission channel resource request that is sent to DRNC from SRNC.If this sign is not set, but the HS-DSCH in the CELL_FACH state is supported in UE under the DRNC and sub-district, and then DRNC for example can carry out the RRC connection reconstruction by the signaling connection rebuilding of indication.If the HS-DSCH ability in the CELL_FACH state of UE is carried out the signaling transmission by Iur, then this ability can comprise the purpose of sign, thereby does not need this sign.Can be only when supporting HS-DSCH in the CELL_FACH state, UE and SRNC send the UE ability.Can use logic channel ID that length and the MAC-c/sh of SPI are set.
Be appreciated that the advantage that is associated with illustrative embodiments of the present invention is: need not to set up new Frame Protocol or process.
Figure 10 shows the illustrative embodiments of the device 1000 that can use according to the present invention.The assembly that is appreciated that this device can be implemented as hardware or software, and can be included in the single component or be distributed to a plurality of assemblies.This device is used to provide Frame Protocol for transmission.Frame Protocol can comprise Frame or control frame, and can provide to be used for the transmission by Iub or Iur interface or any other common transmission interface known in the art.This device can comprise processor 1010, although and to be appreciated that assembly with this device is shown different with processor 1010, and assembly can be included in the processor 1010 or as its part.Device 1000 shown in Figure 10 can comprise data cell 1020, and it is used for comprising at least one temporary identifier at Frame.This temporary identifier for example can be H-RNTI, U-RNTI or any other temporary identifier.Data cell 1020 can also be used for comprising the sign that is associated with at least one expection recipient of at least one packet at least one control frame, also be H-RNTI.Data cell 1020 can also dispose and be used for comprising at least one sign at control frame, also, and S-RNTI or D-RNTI.
Device shown in Figure 10 can also comprise channel quality validity module 1022, it is used for comprising following value at Frame, whether the information relevant with channel quality information of storage is effective for the new UE that is assigned H-RNTI in this value indication network element (Node B also promptly).This equipment can also comprise power level determining unit 1024, and it is used for comprising power control information at Frame that this information for example can be used for determining the value of transmission power level.This device can also comprise field specifier module 1026, is used for comprising at least one field at Frame, and how this field indication network element (Node B also promptly) handles this Frame.For example, this field can instructs node B: Frame is handled as public high-speed downlink shared channel transferring data frames (HS-DSCH), and perhaps this field can be indicated: Frame is inserted (HSDPA) transferring data frames as high-speed downlink packet handle.This device can also comprise sign identify unit 1028, and it is used for comprising at least one sign at control frame or Frame.
Be appreciated that accompanying drawing and the appended narrative discussion to corresponding execution mode are not to be intended to method, device, system and the software product that strict fully qualification is considered.It will be understood to those of skill in the art that the general causality of step of the present invention and signal indication, it is mutual that it does not get rid of various types of centres; And will understand, various steps and structure described in the application can be used the various combinations that need not at the hardware and software of this detailed description, realize by various order and configuration.Be appreciated that above-mentioned layout only is the exemplary illustrated of the application of the principles of the present invention.Without departing from the scope of the invention, those skilled in the art can propose multiple modification and alternative arrangement, and appended claims is intended to contain these modifications and layout.
Claims (40)
1. method comprises:
At least one temporary identifier is provided in the Frame that provides for transmission, and
Comprise following value in described Frame, described value disposes the adaptive modulation and coding that is used for communication channel at least.
2. according to the process of claim 1 wherein that described Frame is used for transmitting by Iub interface.
3. according to the process of claim 1 wherein that described value further disposes the power control that is used for described communication channel.
4. according to the process of claim 1 wherein that described value relates to the transmission power level of described communication channel.
5. according to the process of claim 1 wherein that described value relates to the channel quality information of described communication channel.
6. according to the process of claim 1 wherein that described Frame is the data with existing frame that uses in the high-speed downlink shared channel transmission.
7. according to the method for claim 1, also comprise:
Comprise at least one field, with notice network element processing said data frame how.
8. according to the method for claim 7, wherein when adopting the high-speed downlink shared channel transmission in the CELL_FACH state, described at least one field notifies described network element to come the processing said data frame according to first mode; And when adopting high-speed downlink packet to insert transmission in the CELL_FACH state, described at least one field notifies described network to come the processing said data frame according to second mode.
9. according to the process of claim 1 wherein that described Frame configuration is used to carry protocol Data Unit.
10. according to the process of claim 1 wherein that described Frame configuration is used to carry the protocol Data Unit that comprises Logic Channel Identifier.
11., comprise described at least one temporary identifier and described value according to the process of claim 1 wherein when in the CELL_FACH state, adopting the high-speed downlink shared channel transmission.
12. according to the process of claim 1 wherein that described at least one temporary identifier is arranged in the spare extension of described Frame.
13. according to the process of claim 1 wherein that described at least one temporary identifier is the radio net temporary identifier.
14. according to the process of claim 1 wherein that described at least one temporary identifier can be the sign that is associated with at least one expection recipient of at least one packet.
15. the method according to claim 1 also comprises:
Comprise and the relevant designator of described at least one temporary identifier that described designator is designated as described at least one temporary identifier of new user equipment allocation.
16. the method according to claim 1 also comprises:
Comprise following value in described Frame, whether channel quality information that store, described communication channel is effective in the described value indication network element.
17. a computer-readable storage organization medium is embedded with computer program, comprises program code, is used for:
At least one temporary identifier is provided in the Frame that provides for transmission, and
Comprise following value in described Frame, described value disposes the adaptive modulation and coding that is used for communication channel at least.
18. a method comprises:
Comprise at least one field, described field configuration is used for the informing network entity how the frame that transmits and provide is provided; And
Transmit described frame by the Iur interface.
19. according to the method for claim 18, wherein said frame is the expansion frame of high-speed downlink shared channel frame.
20. according to the method for claim 18, wherein said frame is a Frame, its configuration is used to carry at least one protocol Data Unit that comprises Logic Channel Identifier.
21. according to the method for claim 18, wherein said frame comprises at least one temporary mark.
22. according to the method for claim 18, wherein when adopting the high-speed downlink shared channel transmission in the CELL_FACH state, it is Logic Channel Identifier that described at least one field is indicated described frame; When adopting the high-speed downlink shared channel transmission, it is the Common transport channel priority indicator that described at least one field is indicated described frame.
23. according to the method for claim 21, wherein said temporary mark is a drift radio network controller radio net temporary mark.
24. the method according to claim 18 also comprises:
In described frame, comprise at least one mark and label.
25. the method according to claim 18 also comprises:
In described frame, comprise the designator that relates to subscriber equipment.
26. a computer-readable storage organization medium is embedded with computer program, comprises program code, is used for:
Comprise at least one field in frame, described field configuration is used for the informing network entity and how handles described frame; And
Transmit described frame by the Iur interface.
27. a device comprises:
Data cell is used for comprising at least one temporary identifier at the Frame that provides for transmission; And
The power level determining unit is used for comprising following value at described Frame that described value disposes the adaptive modulation and coding that is used for communication channel at least.
28. according to the device of claim 27, wherein said value further disposes the power control that is used for described communication channel.
29. according to the device of claim 27, wherein said value relates to the transmission power level of described communication channel.
30. according to the device of claim 27, wherein said value relates to the channel quality information of described communication channel.
31. the device according to claim 27 also comprises:
Channel quality validity module is used for comprising following value at described Frame, and whether channel quality information that store, described communication channel is effective in the described value indication network element.
32. the device according to claim 27 also comprises:
The field specifier module is used for comprising at least one field at described Frame, indicating how processing said data frame of described network element,
Wherein when adopting the high-speed downlink shared channel transmission in the CELL_FACH state, described at least one field notifies described network element to come the processing said data frame according to first mode, and
When adopting high-speed downlink packet to insert transmission, described at least one field notifies described network element to come the processing said data frame according to second mode.
33. according to the device of claim 27, wherein said device configuration is used to provide described Frame so that transmit by Iub interface.
34. according to the device of claim 27, wherein said Frame configuration is used to carry protocol Data Unit.
35. a device comprises:
The field identification module is used for comprising at least one field at the frame that provides for transmission, and how described field informing network entity handles described frame; And
Data cell is used for comprising at least one temporary identifier at Frame.
36. according to the device of claim 35, wherein said device configuration is used for transmitting described frame by the Iur interface.
37. according to the device of claim 35, wherein said field indication: when in the CELL_FACH state, adopting the high-speed downlink shared channel transmission, described frame is considered as Logic Channel Identifier; When adopting the high-speed downlink shared channel transmission, described frame is considered as the Common transport channel priority indicator.
38. a method comprises:
Provide with the CELL_FACH state in the relevant information of power of High-Speed Shared Control Channel; And
The value relevant with the forward access channel measurement Cycle Length is provided.
39. a method comprises:
The designator that whether disposes the high-speed downlink shared channel that is used for supporting the CELL_FACH state about radio network controller is provided; And
Request at public transmission channel resource is provided.
40. method according to claim 39, wherein said radio network controller is the service radio network controller, and the configuration of described service radio network controller is used for the request at public transmission channel resource is sent to drift radio network controller.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
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| US89883307P | 2007-01-31 | 2007-01-31 | |
| US60/898,833 | 2007-01-31 | ||
| PCT/US2008/052684 WO2008095115A2 (en) | 2007-01-31 | 2008-01-31 | Frame protocols and signalling for use in high speed transmission |
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| CN101601218A true CN101601218A (en) | 2009-12-09 |
| CN101601218B CN101601218B (en) | 2014-09-03 |
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| CN200880003486.7A Active CN101601218B (en) | 2007-01-31 | 2008-01-31 | Frame protocols and signalling for use in high speed transmission |
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| CN (1) | CN101601218B (en) |
| WO (1) | WO2008095115A2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118869A (en) * | 2010-01-05 | 2011-07-06 | 财团法人工业技术研究院 | System and method for data relay transmission |
| WO2012058991A1 (en) * | 2010-11-05 | 2012-05-10 | 中兴通讯股份有限公司 | Method and system for calculating total received power of high speed physical downlink shared channel |
| CN102595506A (en) * | 2011-01-07 | 2012-07-18 | 鼎桥通信技术有限公司 | Flow control method |
| CN107534648A (en) * | 2015-02-25 | 2018-01-02 | 诺基亚通信公司 | For supporting the mechanism of operator's auxiliary parent's control |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101719805A (en) * | 2008-10-09 | 2010-06-02 | 大唐移动通信设备有限公司 | Method and device for reporting frequency deviation measurement information |
| CN103298127B (en) * | 2012-02-27 | 2016-08-24 | 电信科学技术研究院 | A kind of PDSCH power distribution method and device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100566274B1 (en) * | 2003-11-20 | 2006-03-30 | 삼성전자주식회사 | Apparatus and method for sub-carrier allocation in ofdm system |
| KR100983277B1 (en) * | 2005-02-15 | 2010-09-24 | 엘지전자 주식회사 | Method for Transmitting and Receiving MBMS Service |
| KR100860752B1 (en) * | 2005-06-23 | 2008-09-29 | 삼성전자주식회사 | Apparatus and method for frame structure in broadband wireless communication system |
-
2008
- 2008-01-31 CN CN200880003486.7A patent/CN101601218B/en active Active
- 2008-01-31 WO PCT/US2008/052684 patent/WO2008095115A2/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102118869A (en) * | 2010-01-05 | 2011-07-06 | 财团法人工业技术研究院 | System and method for data relay transmission |
| CN102118869B (en) * | 2010-01-05 | 2015-01-21 | 财团法人工业技术研究院 | System and method for data relay transmission |
| WO2012058991A1 (en) * | 2010-11-05 | 2012-05-10 | 中兴通讯股份有限公司 | Method and system for calculating total received power of high speed physical downlink shared channel |
| US9282475B2 (en) | 2010-11-05 | 2016-03-08 | Zte Corporation | Method and system for calculating total received power of high speed physical downlink shared channel |
| CN102595506A (en) * | 2011-01-07 | 2012-07-18 | 鼎桥通信技术有限公司 | Flow control method |
| CN102595506B (en) * | 2011-01-07 | 2014-09-17 | 鼎桥通信技术有限公司 | Flow control method |
| CN107534648A (en) * | 2015-02-25 | 2018-01-02 | 诺基亚通信公司 | For supporting the mechanism of operator's auxiliary parent's control |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101601218B (en) | 2014-09-03 |
| WO2008095115A2 (en) | 2008-08-07 |
| WO2008095115A3 (en) | 2008-10-09 |
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