CN101137098A - Uplink real-time packet service transmission method - Google Patents
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Abstract
This method uses non-dispatching transferring mode (NTM) to normally transfer real-time business (RB) while uses dispatching transferring mode (DTM) to re-transfer RB. Concretely, on one side, the terminal uses NTM to transfers real-time business data package (RBDP) to the base station (BS) or the node B (NB) via the up-going non-dispatching physical channel (UNPC). BS or NB receives UNPC, judges whether the received RBDP is correct and continues to process depending on the judging result; on the other side, the terminal uses DTM to re-transfers the failed RBDP to BS or NB via the up-going dispatching physical channel (UDPC). BS or NB receives UDPC, judges whether the received re-transferred RBDP or the package combining the re-transferred RBDP with the failed RBDP is correct and continues to process depending on the judging result.
Description
Technical field
The present invention relates to the synchronous radio communication system, particularly, relate to uplink real-time packet service transmission method, when this method is particularly useful for demal divide wireless telecommunication system (for example, TD-CDMA, TD-SCDMA).
Background technology
In order to satisfy the growing demand of user to the high-speed upward grouped data business, also for better with descending HSDPA (High Speed Downlink Packet Access, high speed downlink packet inserts) technology matches that support to higher quality of service is provided, 3GPP (3rd Generation partnership project, third generation mobile partner plan) introduced (Wideband Code DivisionMultiple Access at Rel6 and Rel7 respectively based on WCDMA, Wideband Code Division Multiple Access (WCDMA) inserts), TD-CDMA (Time DivisionCode Division Multiple Access, time division CDMA inserts), and TD-SCDMA (Time Division-Synchronous Code Division Multiple Access, the TD SDMA access) HSUPA technology, perhaps be referred to as up enhancing (EnhancedUplink) or E-DCH (Enhanced Dedicated Channel, up enhancing dedicated transmission channel) technology.
HSUPA (High Speed Uplink Packet Access, high speed uplink packet inserts) employing HARQ (Hybrid Automatic Repeat Request, mix automatic repeat requests), high order modulation (16QAM), Node B fast dispatch and based on the technology such as reverse RoT control of T/P, can obtain higher user's peak rate, cell data throughput, and reach stable reverse RoT control.
Wherein, HARQ is a kind of error correction method that traditional ARQ (Automatic RetransmissionRequest, automatically retransmit) technology and FEC (Forward Error Correct, forward error correction) technology are combined.The sign indicating number that transmitting terminal sends not only can detect mistake, but also has certain error correcting capability.After the receiving terminal reception information, if error situation in error correcting capability, then carries out error correction automatically, if exceeded the error correcting capability of error correcting code, but can detect, then receiving terminal feeds back to the corresponding signal of transmitting terminal, requires transmitting terminal to retransmit.And HSUPA has adopted incremental redundancy, and (Incremental Redundancy, asynchronous HARQ mode IR) merge and coding gain by obtaining to retransmit, and improve systematic function.The mode that retransmission mechanism has adopted that the N channel stops to be waited.
For TD-CDMA access system, as TD-CDMA and TD-SCDMA system, up enhancing transmission is divided into scheduled transmission and non-scheduled transmission.
For scheduled transmission, introduce dispatching uplink in physical layer and strengthened physical channel (Enhance Physical Uplink Channel, abbreviation E-PUCH) carries E-DCH (up enhancing dedicated transmission channel), introduced enhanced uplink random access channel (Enhanced Random access Uplink Control Channel simultaneously, be called for short E-RUCCH), strengthen absolute grant channel (Enhanced Absolute Grant Channel, be called for short E-AGCH), finishing transmission respectively with three physical channels of the automatic repeat requests affirmation of enhancing mixing indicating channel (EnhancedHARQ Acknowledgement Indicator Channel is called for short E-HICH) asks, resource authorization, with the transmission feedback function.Also has E-UCCH (E-DCH uplink control channel) in addition, be used to transmit E-TFCI (E-DCHTransport Format Combination Indication, E-DCH transformat combination indication), information that HARQ is relevant, this channel has been mapped on the E-PUCH.
Scheduled transmission is by RNC (Radio Network Controller, radio network controller) distributes scheduling E-PUCH, E-AGCH, the E-HICH channel resource pool of sub-district to Node B, when setting up, business distributes E-AGCH and E-HICH channel subset by Node B to UE (User Equipment, subscriber equipment).During scheduled transmission, UE is by E-RUCCH or E-DCH request Resources allocation, give UE by the E-PUCH resource of each UE scheduled transmission of Node B dynamic assignment and by the E-AGCH channel authorization, the E-PUCH resource of UE use authority sends E-DCH, and Node B gives UE by E-HICH feedback HARQACK/NACK information then.
For non-scheduled transmission, introduce non-scheduling E-PUCH in physical layer and carried E-DCH, introduce E-HICH simultaneously and transmitted feedback.Also have E-UCCH (E-DCH uplink control channel) in addition, be used to transmit the relevant information of E-TFCI, HARQ, this channel is mapped on the E-PUCH.The E-PUCH resource and the E-HICH channel resource that distribute non-scheduled transmission by RNC for UE semi-staticly.During non-scheduled transmission, UE can use non-scheduling E-PUCH resource to send E-DCH at any time, Node B by non-scheduling E-HICH feedback HARQ ACK/NACK information to UE.In TD-CDMA access system, can adopt frame distribution method is that UE distributes non-scheduling E-PUCH channel and corresponding E-HICH channel resource.In frame distribution method, transmitting and receiving of E-PUCH channel is to carry out with certain repetition period (Repetition Period), and carries out transmitting and receiving of E-PUCH channel in some frame in one-period or the subframe.
In the HSUPA technology of existing TD-CDMA access system, scheduled transmission and non-scheduled transmission have all been used the HAQR technology, and what use is asynchronous HARQ mode, that is, need retransmit for the data of bust this.For real-time class business, when the data to bust this in time retransmitted, in order to guarantee professional real-time, requiring to retransmit did not influence normal transfer of data,, can not influence timing relationship between the real time business packet because of re-transmission that is.
In the HSUPA technology of existing TD-CDMA access system, transmit real-time class business if use scheduled transmission, then can come well the normal transmission and/or the re-transmission of supporting business simultaneously by the different E-PUCH resource of dynamic dispatching mandate, but because real-time class business, as VoIP (Voice over Internet Protocol) business, often have periodically, the characteristics that traffic carrying capacity is little, thereby cause frequent scheduling authorization, make that the control signaling consumption is very big with respect to resource allocation, in addition, scheduled transmission also may cause dispatch delay, thus the traffic affecting real-time.Transmit real-time class business if use non-scheduled transmission, because non-scheduling E-PUCH resource does not need scheduling authorization, therefore can reduce to control signaling consumption and dispatch delay greatly, but, cause the normal transmission and/or the re-transmission of supporting business simultaneously well of non-scheduling E-PUCH resource because non-scheduling E-PUCH is semi-static distribution.
Along with the development of technology, in wireless telecommunication system, especially in the time-division wireless telecommunication system, what adopt that the scheduled transmission that is similar in the above-mentioned up enhancement techniques and non-scheduled transmission mode carry out various types of uplink traffic transmission is a kind of trend.Be that non-scheduled transmission adopts semi-static method distribution service transmitting physical channel resource, can be by the non-scheduling physical channel of portable terminal decision emission; And the method distribution service transmitting physical channel resource of dynamic dispatching is adopted in scheduling, gives UE, the scheduling physical channel that the UE emission is authorized by the base station or the Node B dynamic assignment mandate scheduling physical channel resources of network side.Simultaneously, scheduled transmission and non-scheduled transmission all adopt the HARQ technology to improve the physical layer transmission performance.
The same with above-mentioned system, in order to support the transmission of real-time class uplink service better, need improve above-mentioned technology and method, a kind of method of more effectively carrying out the uplink real-time packet service transmission based on above-mentioned technology is provided.
Summary of the invention
The time division CDMA of considering correlation technique inserts the needs of the problem that exists when the up enhancement techniques that exists in (TD-CDMA) system is supported the professional transmission of uplink real-time and technical development and proposes the present invention.For this reason, the invention provides a kind of uplink real-time packet service transmission method, this method is particularly useful for the time-division wireless telecommunication system.
In the method according to this invention, carry out the real time business normal transmission in non-scheduled transmission mode, carry out real time business in the scheduled transmission mode and retransmit.
Particularly, on the one hand, the above-mentioned processing of carrying out the real time business normal transmission in non-scheduled transmission mode comprises: terminal is given base station or Node B in non-scheduled transmission mode by up non-scheduling physical channel transmitting real-time service data; Base station or Node B receive up non-scheduling physical channel, judge whether its real time business packet that receives is correct, and carry out subsequent treatment according to judged result.
Wherein, before the transmitting real-time service data, further comprise following processing: at network side, the physical channel resources pond that is used for scheduled transmission of allocating cell, wherein, physical channel comprises: uplink scheduling physical channel, scheduling authorization channel, carrying scheduling mix the channel that automatic repeat requests is confirmed indication information; Network side is the up non-scheduling physical channel resources of the up non-scheduled transmission of terminal distribution and carries the channel resource that non-scheduling mixes automatic repeat requests affirmation indication information accordingly, and be the scheduling authorization channel resource of terminal distribution scheduled transmission and the channel resource that corresponding carrying scheduling mixes automatic repeat requests affirmation indication information, and the resource of distributing is sent to terminal.
Concrete, in technology based on the up enhancement techniques of TD-CDMA access system, radio network controller is to the physical channel resources pond that is used for the E-DCH scheduled transmission of Node B allocating cell, wherein, physical channel comprises: E-PUCH, enhancing absolute grant channel are that the mixed automatic repeat requests of E-AGCH, enhancing confirms that indicating channel is E-HICH; When radio network controller is terminal distribution E-DCH resource, the non-scheduling E-PUCH physical channel resources and the corresponding non-scheduling E-HICH physical channel resources of distributing the non-scheduled transmission of E-DCH, requesting node B is the scheduling E-PUCH physical channel resources and the corresponding scheduling E-HICH physical channel resources of terminal distribution E-DCH scheduled transmission simultaneously, and by radio network controller the resource of distributing is sent to described terminal.
Subsequent treatment above-mentioned specifically comprises: base station or Node B judge to receive under the correct situation, give the last layer functional entity with the real time business data packet transmission that receives, and send non-scheduling and mix automatic repeat requests and receive correct indication information to terminal; Base station or Node B are preserved wrong real time business packet judge receiving under the wrong situation, and send non-scheduling and mix automatic repeat requests and receive wrong indication information to terminal.
On the other hand, above-mentionedly carry out the processing that real time business retransmits in the scheduled transmission mode and comprise: terminal is given base station or Node B in the scheduled transmission mode by the real time business packet that the uplink scheduling physical channel retransmits bust this; Base station or Node B receive the uplink scheduling physical channel, whether the packet after judging re-transmission real time business packet or the re-transmission real time business packet that receives and before having received wrong real time business packet merging is correct, and carries out relevant treatment according to judged result.
Above-mentioned relevant treatment comprises: base station or Node B judge to receive under the correct situation, give the last layer functional entity with the real time business data packet transmission that receives, and send scheduling and mix automatic repeat requests and receive correct indication information to terminal; Base station or Node B receive in judgement under the situation of mistake, preserve wrong real time business packet, and the automatic repeat requests of transmission scheduling mixing receives wrong indication information to terminal.
Wherein, before the real time business packet that retransmits bust this, further comprise following processing: base station or Node B are the real time business packet that terminal distribution uplink scheduling physical channel resources is used to retransmit error of transmission by the scheduling authorization channel.Wherein, base station or Node B are in scheduling authorization, and the uplink scheduling physical channel source of distributing by this scheduling authorization of signaling indicating terminal is used to retransmit wrong real time business packet.
For a real time business packet, its retransmission processes lasts till that this real time business packet is received or number of retransmissions surpasses predetermined threshold by base station or Node B are correct.
In the technology based on the up enhancement techniques of TD-CDMA access system, uplink scheduling physical channel, scheduling authorization channel, carrying scheduling mix that channel that automatic repeat requests confirms indication information is respectively that uplink scheduling strengthens physical channel (E-PUCH), strengthens absolute grant channel (E-AGCH), scheduling strengthens and mixes automatic repeat requests and confirm indicating channel (E-HICH); Up non-scheduling physical channel and carry non-scheduling accordingly and mix channel that automatic repeat requests confirms indication information and be respectively up non-scheduling and strengthen physical channel (E-PUCH), non-scheduling and strengthen and mix automatic repeat requests and confirm indicating channel (E-HICH).
By technical scheme provided by the invention, non-scheduling resource can guarantee the real-time of professional transmission, and the control signaling consumption in the time of can reducing professional normal transmission, simultaneously outside the normal transmission resource, the data of bust this when the allocation schedule resource is carried out normal transmission can guarantee professional error rate requirement.
Other features and advantages of the present invention will be set forth in the following description, and, partly from specification, become apparent, perhaps understand by implementing the present invention.Purpose of the present invention and other advantages can realize and obtain by specifically noted structure in the specification of being write, claims and accompanying drawing.
Description of drawings
Accompanying drawing is used to provide further understanding of the present invention, and constitutes the part of specification, is used from explanation the present invention with embodiments of the invention one, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the schematic diagram that is used for real-time TD-SCDMA of the present invention system;
Fig. 2 is a schematic diagram of implementing the related functional entities of the network side E-DCH enhancement techniques that the present invention relates to;
Fig. 3 is the flow chart according to the uplink real-time packet service transmission method of the embodiment of the invention;
Fig. 4 is another flow chart according to the method for the uplink real-time packet service transmission of the embodiment of the invention;
Fig. 5 is the detailed process flow chart of Fig. 3 and method shown in Figure 4;
Fig. 6 is the detailed process flow chart according to the VoIP Business Processing example of the uplink real-time packet service transmission method of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein only is used for description and interpretation the present invention, and be not used in qualification the present invention.
At first, Fig. 1 shows the Radio Network System that is used to implement TD-SCDMA of the present invention system, as shown in Figure 1, the Radio Network System of existing TD-SCDMA system comprises RNC (radio network controller) and the Node B (Node B) and the terminal (UE) of network side.
In the E-DCH of TD-SCDMA system technology, up enhancing transmission is divided into scheduled transmission and non-scheduled transmission.As shown in Figure 2, aspect physical layer, scheduled transmission has been introduced E-PUCH, E-RUCCH, E-AGCH, E-HICH and E-UCCH physical channel, and non-scheduled transmission has been introduced E-PUCH, E-HICH and E-UCCH physical channel.Wherein the E-PUCH physical channel is divided into scheduling E-PUCH physical channel and non-scheduling E-PUCH physical channel, the scheduling and the HARQ confirmation of receipt indication information of non-scheduled transmission send to UE by the E-HICH channel dispatched and the E-HICH channel of non-scheduling respectively, and Node B is by the E-AGCH dynamic assignment and license to UE scheduling E-PUCH physical channel resources.In the MAC layer, introduced the MAC-e/es sublayer.At network side, dispatching management are carried out by the scheduling entity of the MAC-e/es sublayer that is arranged in Node B in the physical channel resources pond that the scheduled transmission of each sub-district is relevant.Simultaneously, having distributed the UE of E-DCH resource to set up a MAC-e entity for each dispatches and non-scheduled transmission.In the MAC-e entity, comprise a HARQ entity of handling the HARQ function, the HARQ entity can dispose 8 processes (Process) at most, and each process is identified by different Process Id, and wherein scheduled transmission is 4,4 of non-scheduled transmission.In the E-DCH of TD-SCDMA system technology, each Transmission Time Interval (TTI) can only carry out scheduled transmission or non-scheduled transmission, and the E-PUCH physical channel resources of scheduled transmission and non-scheduled transmission is different.Therefore, a TTI, may distinguish scheduled transmission or non-scheduled transmission by the E-PUCH physical channel, the expense when reducing E-UCCH transmitting HARQ Process Id can be only represented to dispatch or 4 HARQ Process Id of non-scheduling with 2bit.
According to the embodiment of the invention, provide a kind of in the TD-SCDMA system, based on up enhancement techniques, carry out the method for uplink real-time packet service transmission, wherein, carry out the real time business normal transmission, and carry out the real time business re-transmission in the scheduled transmission mode in non-scheduled transmission mode.
The embodiment of the invention can realize by following operation:
(1) at network side, the physical channel resources pond that is used for scheduled transmission of allocating cell.For example, RNC mixes automatic repeat requests affirmation indicating channel (E-HICH) physical channel resources pond to the up enhancing dedicated transmission channel (E-DCH) that is used for scheduled transmission, enhancing absolute grant channel (E-AGCH), the enhancing of Node B allocating cell.
Press existing network infrastructure, promptly, wireless network is made up of RNC and two network elements of Node B, and RNC is connected by Iub interface with Node B, and then this process can be initiated that Physical Shared Channel (the Physical Shared Channel Reconfiguration) process of reshuffling realize in the NBAP agreement by RNC to Node B by Iub interface.But if wireless network has only network element of Node B, then this process cooperatively interacts between can the correlation function module by Node B inside and realizes.In this process, the scheduling entity of setting up a MAC-e/es sublayer in Node B is come the physical channel resources pond of these scheduled transmission of dispatching management.
(2) network side be UE distribute up non-scheduled transmission up non-scheduling physical channel resources (for example, non-scheduling E-PUCH physical channel resources) and the non-scheduling of corresponding carrying HARQ confirm indication information channel resource (for example, scheduling E-AGCH physical channel resources), and (for example distribute the scheduling authorization channel resource of uplink scheduling transmission and channel resource that corresponding carrying scheduling HARQ confirms indication information for UE, the scheduling E-HICH physical channel resources), and with the resource of these distribution send to UE.
For non-scheduling E-PUCH resource, RNC can be according to the periodic characteristics of real time business, with the real time business cycle be the repetition period, the method that adopts frame to distribute is that UE distributes non-scheduling E-PUCH resource and corresponding non-scheduling E-HICH channel resource, as the VoIP business, can be every 20ms distribute the non-scheduling E-PUCH resource and the corresponding non-scheduling E-HICH channel resource of a subframe or frame.And scheduling E-PUCH is passed through the E-AGCH dynamic assignment by Node B in business procedure, therefore, and initial E-AGCH and the E-HICH physical channel resources that only needs to distribute the E-DCH scheduled transmission.
Press existing network infrastructure, be defined as a UE by RNC usually and distribute the E-DCH resource to carry out the E-DCH transmission.RNC is non-scheduling E-PUJCH physical channel resources and the corresponding non-scheduling E-HICH physical channel resources that UE distributes the non-scheduled transmission of E-DCH, then by Iub interface to Node B initiate Radio Link in the NBAP agreement set up process (Radio Link Setup) and wireless links reconfiguration course (Radio LinkReconfiguration) with these resource distributions to Node B, and be that UE request distributes E-DCH scheduled transmission relevant E-AGCH and E-HICH physical channel resources to Node B, Node B distributes and preserves these resources, feeds back to RNC then.If the wireless network of network side has only network element of Node B, then this process cooperatively interacts between can the correlation function module by Node B inside and realizes.
Network side sends to UE with the non-scheduling of the E-DCH resource relevant with scheduled transmission of above-mentioned distribution by high-level signaling.Press existing network infrastructure, this process connects set up process (RRCconnection establishment) by Uu interface (interface between network side and UE) to the RRC that UE initiates in RRC (Radio ResourceControl, the Radio Resource control) agreement by RNC, radio bearer is set up process (Radio BearerEstablishment), radio bearer reconfiguration course (Radio BearerReconfiguration), radio bearer dispose procedure (Radio Bearer Release), transmission channel reconfiguration course (Transport Channel Reconfiguration), physical channel reconfiguration course (Physical Channel Reconfiguration), cell updating course processes such as (CellUpdate) is finished.If the wireless network of network side has only network element of Node B, then by finishing above-mentioned resource is sent to UE with the similar process of said process by Node B.
(3) UE gives Node B in non-scheduled transmission mode by up non-scheduling physical channel (for example, non-scheduling E-PUCH physical channel) transmitting real-time service packet.
With the VoIP business is example, and in the professional transmission course of VoIP, UE uses non-scheduling E-PUCH physical channel resources transmission VoIP business data packet to give Node B in the non-scheduled transmission mode of E-DCH.The packet of VoIP business is periodic, is generally new packet of every 20ms.And every 20ms distributes the non-scheduling E-PUCH resource of a subframe or frame and corresponding non-scheduling E-HICH channel resource UE just in time to be used for the new packet that the every 20ms of uplink produces, being the normal transmission of so-called real time business, also is that all new upstream data bags of VoIP business all send to Node B by non-scheduling E-PUCH channel.
In the professional transmission course of VoIP, each TTI, by the HARQ entity in the MAC-e entity of UE side is the VoIP business datum HARQ Process (HARQ process) that is responsible for assigning, and when this packet of transmission, will send to Node B to the HARQ Process Id (HARQ process identification (PID)) of HARQ process by the E-UCCH channel on the E-PUCH channel.
(4) Node B (for example receives up non-scheduling physical channel, non-scheduling E-PUCH channel), judge whether the real time business packet that receives receives correctly, if receive correct, the channel that then is transferred to the last layer functional entity and confirms indication information by the non-scheduling of carrying HARQ (for example, non-scheduling E-HICH channel) send HARQ ACK message to UE, this data packet transmission is finished; As receive mistake, and then preserve error data packets, send HARQ NACK message to UE by non-scheduling E-HICH channel.
Still be example with the VoIP business, in Node B, receive non-scheduling E-PUCH channel by physical layer, judge according to the CRC after the VoIP business data packet on the non-scheduling E-PUCH channel of each TTI (Cyclic Redundancy Check, cyclic redundancy check (CRC)) whether this VoIP business data packet receives correctly.
If receive correct, then be transferred to the demultiplexing entity of last layer by the corresponding non-scheduling HARQ Process of HARQ Process Id in the HARQ entity in the MAC-e entity and that receive, and the E-HICH channel by non-scheduling E-PUCH correspondence sends HARQACK message to UE, and this transfer of data is finished.If the reception mistake is then preserved this wrong data by the HARQ entity according to HARQ Process Id, and the E-HICH channel by non-scheduling E-PUCH correspondence sends HARQ NACK message to UE.
(5) Node B gives UE by scheduling authorization channel (E-AGCH) allocation schedule uplink scheduling physical channel resources (for example, the E-PUCH resource), is used to retransmit wrong real time business packet.
In Node B, receive wrong VoIP packet for each, the scheduling entity of MAC-e/es sublayer is all with allocation schedule E-PUCH resource and send to UE by E-AGCH and be used to retransmit this VoIP packet.
In the E-DCH of the TD-SCDMA system technology, the scheduling E-PUCH resource normally is used for the transmitting and scheduling business.Therefore, if allocation schedule E-PUCH resource retransmits the real time business packet of non-scheduled transmission failure, as the VoIP business data packet, then Node B must be by signaling UE by E-AGCH allocation schedule E-PUCH resource the time.Such as on the E-AGCH channel, increasing new signaling information, perhaps the partial content on the E-AGCH channel is carried out specific processing, make UE can identify this special E-AGCH channel allocation information.
(6) UE uses the uplink scheduling physical channel resources (for example, E-PUCH resource) of distributing to retransmit the real time business packet of error of transmission to Node B.
In the E-DCH of TD-SCDMA system technology, each TTI can only transmit a packet.Therefore, in the UE side, if the E-PUCH resource that certain TTI distributes by E-AGCH is instructed to be used for carrying out the packet re-transmission of non-scheduling service, then UE uses the real time business packet of a non-scheduling of E-PUCH resource re-transmission that distributes to give Node B.For the VoIP business, then be to use the scheduling E-PUCH resource to retransmit a VoIP business data packet and give Node B.When retransmitting a VoIP business data packet, the HARQ Process that uses when using this packet to transmit before this, and its HARQ Process Id sent to Node B by the E-UCCH channel on the E-PUCH channel.
(7) Node B (for example receives the uplink scheduling physical channel, the scheduling E-PUCH channel), whether the packet after the re-transmission real time business packet that judgement receives or this packet merge with the packet that takes defeat before this is correct, if receive correct, the channel that then is transferred to the last layer functional entity and confirms indication information by carrying scheduling HARQ (for example, the scheduling E-HICH channel) send HARQ ACK message to UE, this data packet transmission is finished; As receive mistake, and then preserve the misdata bag that receives, send HARQ NACK message to UE by the scheduling E-HICH channel.
With the VoIP packet is example, in Node B, certain TTI (Transmission Time Interval), be used to the into re-transmission of VoIP packet if distribute to the scheduling E-PUCH of UE before this, then physical layer is after this TTI receives the scheduling E-PUCH channel, to the re-transmission VoIP packet that receives, CRC according to the VoIP packet judges whether this VoIP business data packet receives correctly, perhaps according to the HARQ Process Id that receives, data retransmission that receives and the data that receive mistake are before this merged processing, and the CRC of the data based VoIP packet after being combined then judges whether this VoIP business data packet receives correctly.If receive correct, then this data packet transmission is given the demultiplexing entity of last layer by the non-scheduling HARQ Process corresponding in the HARQ entity in the MAC-e entity with HARQProcess Id that receive, and the scheduling E-HICH channel by scheduling E-PUCH channel correspondence sends HARQ ACK message to UE, and this transfer of data is finished.If still receive mistake, then preserve this wrong data according to HARQ Process Id, and send HARQ NACK message to UE by the scheduling E-HICH channel of scheduling E-PUCH channel correspondence by the HARQ entity.At this moment, the misdata of preservation can the time merge data after the processing, also can preserve respectively and receive wrong data before this and newly receive wrong data.
(8) above-mentioned processing (five) (six) (seven) can reprocessing, up to this real time business packet by Node B correct receive or retransmit surpass some predetermined number of retransmissions.
If retransmit failure, reprocessing between Node B and the UE (five) (six) (seven) retransmits once more, is surpassed some predetermined number of retransmissions up to this real time business business data packet by correct reception of Node B or re-transmission.Number of retransmissions that should be predetermined normally by RNC when business is set up at the beginning, promptly in handling (two) configuration to Node B and UE.Reach this predetermined number of retransmissions if retransmit, but this real time business packet do not receive correctly by Node B still, then in Node B and UE, abandon this real time business packet.
Based on foregoing, as shown in Figure 3, the processing of carrying out the real time business normal transmission in non-scheduled transmission mode in the method for the embodiment of the invention comprises (step S302-step S304):
Step S302, terminal is given base station or Node B in non-scheduled transmission mode by up non-scheduling physical channel transmitting real-time service data;
Step S304, base station or Node B receive up non-scheduling physical channel, judge whether its real time business packet that receives is correct, and carry out subsequent treatment according to judged result, particularly, base station or Node B judge to receive under the correct situation, give the last layer functional entity with the real time business data packet transmission that receives, and can send non-scheduling HARQ and receive correct indication information to terminal; Base station or Node B are preserved wrong real time business packet judge receiving under the wrong situation, and send non-scheduling HARQ and receive wrong indication information to terminal.
Wherein, as mentioned above, before the transmitting real-time service data, further comprise following processing: at network side, the physical channel resources pond that is used for scheduled transmission of allocating cell, wherein, physical channel comprises: uplink scheduling physical channel, scheduling authorization channel, carrying scheduling mix the channel that automatic repeat requests is confirmed indication information; Wherein, network side is the up non-scheduling physical channel resources of terminal distribution and carries the channel resource that non-scheduling HARQ confirms indication information accordingly, and be the scheduling authorization channel resource of terminal distribution uplink scheduling transmission and the channel resource of corresponding carrying scheduling HARQ affirmation indication information, and the resource of distributing is sent to terminal.
Particularly, in technology based on the up enhancement techniques of TD-CDMA access system, radio network controller is to the physical channel resources pond that is used for the E-DCH scheduled transmission of Node B allocating cell, wherein, physical channel comprises: E-PUCH, enhancing absolute grant channel are that the mixed automatic repeat requests of E-AGCH, enhancing confirms that indicating channel is E-HICH; When radio network controller is terminal distribution E-DCH resource, the non-scheduling E-PUCH physical channel resources and the corresponding non-scheduling E-HICH physical channel resources of distributing the non-scheduled transmission of E-DCH, requesting node B is the scheduling E-PUCH physical channel resources and the corresponding scheduling E-HICH physical channel resources of terminal distribution E-DCH scheduled transmission simultaneously, and by radio network controller the resource of distributing is sent to described terminal.
As shown in Figure 4, comprise (step S402-step S404) according to carrying out the processing that real time business retransmits in the scheduled transmission mode in the method for the embodiment of the invention:
Step S402, terminal is given base station or Node B in the scheduled transmission mode by the real time business packet that uplink scheduling physical channel (for example, scheduling E-PUCH physical channel) retransmits error of transmission;
Step S404, base station or Node B receive the uplink scheduling physical channel, whether the packet after judging re-transmission real time business packet or the re-transmission real time business packet that receives and before having received wrong real time business packet merging is correct, and carry out relevant treatment according to judged result, particularly, base station or Node B are being judged under the correct situation of reception, give the last layer functional entity with the real time business data packet transmission that receives, and can send scheduling HARQ and receive correct indication information to terminal; Base station or Node B receive under the wrong situation in judgement, preserve wrong real time business packet, and transmission scheduling HARQ receives wrong indication information to terminal.
Wherein, before the real time business packet that retransmits error of transmission, further comprise following processing: base station or Node B are by the scheduling authorization channel (for example, E-AGCH) be the real time business packet that terminal distribution uplink scheduling physical channel resources (for example, scheduling E-PUCH physical channel) is used to retransmit error of transmission.Wherein, base station or Node B are in scheduling authorization, and the uplink scheduling physical channel source of distributing by this scheduling authorization of signaling indicating terminal is used to retransmit wrong real time business packet.
Need to prove that in addition for a real time business packet, its retransmission processes lasts till that this real time business packet is received or number of retransmissions surpasses predetermined threshold by base station or Node B are correct.
Fig. 5 shows the detailed process of above-mentioned processing.As shown in Figure 5, comprise following processing:
Step S501, at network side, the physical channel resources pond that is used for scheduled transmission of allocating cell, and be used for the physical channel resources of scheduled transmission and non-scheduled transmission for terminal configuration;
Step S502, terminal is given base station or Node B in non-scheduled transmission mode by up non-scheduling physical channel transmitting real-time service data;
Step S503, base station or Node B receive up non-scheduling physical channel, judge whether its real time business packet that receives is correct, under correct situation, is directly to step S510, under the situation of mistake, proceeds to step S504;
Step S504 preserves wrong real-time transmission data bag, and sends non-scheduling HARQ and receive wrong indication information to terminal;
Step S505, base station or Node B are the real time business packet that terminal distribution uplink scheduling physical channel resources is used to retransmit error of transmission by the scheduling authorization channel;
Step S506, terminal is given base station or Node B in the scheduled transmission mode by the real time business packet that the uplink scheduling physical channel retransmits error of transmission;
Step S507, base station or Node B receive the uplink scheduling physical channel, and whether re-transmission real time business packet that judgement receives or the packet that retransmits after the real time business packet merges with the real time business packet that had before taken defeat be correct;
Step S508, it is correct whether the judgment data bag surpasses, and retransmits whether to surpass pre-determined number; In judged result is under the situation that is, proceeds to step S510, is under the situation not in judged result, proceeds to step S509;
Step S509 preserves wrong real time business packet, and transmission scheduling HARQ receives wrong indication information to terminal;
Step S510, transmits data packets is given the last layer functional entity, and can send scheduling HARQ and receive correct indication information to terminal, and this data packet transmission is finished.
(for example based on TD-CDMA access system, TD-CDMA, in the technology of up enhancement techniques TD-SCDMA), the channel that the automatic repeat requests affirmation of mixing indication information is dispatched in uplink scheduling physical channel, scheduling authorization channel, carrying is respectively uplink scheduling enhancing physical channel (E-PUCH), strengthens absolute grant channel (E-AGCH), dispatches the automatic repeat requests affirmation of enhancing mixing indicating channel (E-HICH); Up non-scheduling physical channel and carry non-scheduling accordingly and mix channel that automatic repeat requests confirms indication information and be respectively up non-scheduling and strengthen physical channel (E-PUCH), non-scheduling and strengthen and mix automatic repeat requests and confirm indicating channel (E-HICH).
Based on foregoing, will be that example further describes the present invention below with the VoIP business, the VoIP business is typical real-time service, comprises up-downgoing, here only at the transmission of up VoIP business.Fig. 6 shows the processing example of VoIP business.As shown in Figure 6, comprise following processing:
Step S601, RNC newly arrives resource pool to the E-PUCH that is used for the E-DCH scheduled transmission, E-AGCH, the E-HICH physics of Node B allocating cell;
Step S602, RNC and/or Node B are that UE distributes the non-scheduled transmission of the E-DCH resource relevant with scheduled transmission, comprise physical channel resources, and send to UE;
Step S603, terminal is given Node B in the non-scheduled transmission mode of E-DCH by non-scheduling E-PUCH transmission VoIP packet;
Step S604, Node B receives non-scheduling E-PUCH, judges whether its VoIP business data packet that receives receives correct, under correct situation, is directly to step S610, under the situation of mistake, proceeds to step S605;
Step S605, Node B preserve the misdata bag, and send non-scheduling HARQ and receive wrong indication information to UE;
Step S606, Node B are that UE allocation schedule E-PUCH physical channel is used to transmit the VoIP packet by E-AGCH;
The VoIP packet that step S607, UE use the scheduling E-PUCH physical channel that distributes to retransmit bust this is given Node B;
Step S608, Node B receiving scheduling E-PUCH physical channel, whether the packet after the re-transmission VoIP packet that judgement receives or this re-transmission VoIP business data packet merge with the VoIP packet that had before taken defeat is correct, and retransmit whether surpass pre-determined number, in judged result is under the situation that is, proceed to step S610, otherwise, proceed to step S609;
Step S609, Node B preserve the misdata bag receive, and send non-scheduling HARQ and receive wrong indication information to UE;
Step S610, transmits data packets is given the last layer functional entity, and can send scheduling HARQ and receive correct indication information to UE, and this data packet transmission is finished.
By technical scheme provided by the invention, non-scheduling resource can guarantee the real-time of professional transmission, and the control signaling consumption in the time of can reducing professional normal transmission, simultaneously outside the normal transmission resource, the data of bust this when the allocation schedule resource is carried out normal transmission can guarantee professional error rate requirement.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. a uplink real-time packet service transmission method is characterized in that, carries out the real time business normal transmission in non-scheduled transmission mode, carries out real time business in the scheduled transmission mode and retransmits.
2. method according to claim 1 is characterized in that, the described processing of carrying out the real time business normal transmission in non-scheduled transmission mode comprises:
Terminal is given base station or Node B in non-scheduled transmission mode by up non-scheduling physical channel transmitting real-time service data;
Described base station or Node B receive described up non-scheduling physical channel, judge whether its real time business packet that receives is correct, and carry out subsequent treatment according to judged result.
3. method according to claim 2 is characterized in that, before the described real time business data of transmission, further comprises following processing:
At network side, the physical channel resources pond that is used for scheduled transmission of allocating cell, wherein, physical channel comprises: uplink scheduling physical channel, scheduling authorization channel, carrying scheduling mix the channel that automatic repeat requests is confirmed indication information;
Wherein, described network side is the up non-scheduling physical channel resources of the up non-scheduled transmission of described terminal distribution and carries the channel resource that non-scheduling mixes automatic repeat requests affirmation indication information accordingly, and be the scheduling authorization channel resource of described terminal distribution uplink scheduling transmission and the channel resource that the automatic repeat requests of corresponding carrying scheduling mixing is confirmed indication information, and the resource of distributing is sent to described terminal.
4. method according to claim 3 is characterized in that, in the technology based on the up enhancement techniques of TD-CDMA access system, specifically comprises following processing:
At network side, radio network controller is to the physical channel resources pond that to be used for up enhancing dedicated transmission channel be the E-DCH scheduled transmission of described Node B allocating cell, wherein, physical channel comprises: uplink enhanced physical channel is that E-PUCH, enhancing absolute grant channel are that the mixed automatic repeat requests of E-AGCH, enhancing confirms that indicating channel is E-HICH;
When described radio network controller is described terminal distribution E-DCH resource, the non-scheduling E-PUCH physical channel resources and the corresponding non-scheduling E-HICH physical channel resources of distributing the non-scheduled transmission of E-DCH, asking described Node B simultaneously is the scheduling E-PUCH physical channel resources and the corresponding scheduling E-HICH physical channel resources of described terminal distribution E-DCH scheduled transmission, and by described radio network controller the resource of distributing is sent to described terminal.
5. method according to claim 2, it is characterized in that, described subsequent treatment comprises: described base station or Node B are being judged under the correct situation of reception, the real time business data packet transmission that receives to the last layer functional entity, and is sent non-scheduling and mixes automatic repeat requests and receive correct indication information to described terminal;
Described base station or Node B are preserved wrong real time business packet judge receiving under the wrong situation, and send non-scheduling and mix automatic repeat requests and receive wrong indication information to described terminal.
6. according to each described method in the claim 1 to 5, it is characterized in that the processing of carrying out the real time business re-transmission in the scheduled transmission mode comprises:
Described terminal is given described base station or Node B in the scheduled transmission mode by the real time business packet that the uplink scheduling physical channel retransmits error of transmission;
Described base station or Node B receive described uplink scheduling physical channel, whether the packet after judging re-transmission real time business packet or the re-transmission real time business packet that receives and before having received wrong real time business packet merging is correct, and carries out described relevant treatment according to judged result.
7. method according to claim 6 is characterized in that, described relevant treatment comprises:
Described base station or Node B judge to receive under the correct situation, and the real time business data packet transmission that receives to the last layer functional entity, and is sent scheduling and mixes automatic repeat requests and receive correct indication information to described terminal;
Described base station or Node B receive in judgement under the situation of mistake, preserve wrong real time business packet, and the automatic repeat requests of transmission scheduling mixing receives wrong indication information to described terminal.
8. method according to claim 6 is characterized in that, before the real time business packet that retransmits described error of transmission, further comprises following processing:
Described base station or Node B are the real time business packet that described terminal distribution uplink scheduling physical channel resources is used to retransmit described error of transmission by the scheduling authorization channel.
9. the method described in according to Claim 8, it is characterized in that, described base station or Node B indicate the described uplink scheduling physical channel source of this scheduling authorization distribution of described terminal to be used to retransmit the real time business packet of described mistake by signaling in scheduling authorization.
10. according to each described method in the claim 7 to 9, it is characterized in that for a real time business packet, its retransmission processes lasts till that this real time business packet is received or number of retransmissions surpasses predetermined threshold by described base station or Node B are correct.
11. according to each described method in the claim 1 to 5,7 to 9, it is characterized in that, in the technology based on the up enhancement techniques of TD-CDMA access system, described uplink scheduling physical channel, scheduling authorization channel, carrying scheduling mix channel that automatic repeat requests confirms indication information to be respectively uplink scheduling to strengthen physical channel is E-PUCH, strengthen absolute grant channel are that E-AGCH, scheduling strengthen and mix automatic repeat requests and confirm that indicating channel is E-HICH; Up non-scheduling physical channel and carry non-scheduling accordingly and mix channel that automatic repeat requests confirms indication information and be respectively up non-scheduling to strengthen physical channel be that E-PUCH, non-scheduling strengthen and mix automatic repeat requests and confirm that indicating channel is E-HICH.
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| WO2009089798A1 (en) * | 2008-01-14 | 2009-07-23 | Zte Corporation | Real-time service transmission method and resource allocation method |
| CN103004255A (en) * | 2011-06-17 | 2013-03-27 | 华为技术有限公司 | Processing method of configuration information, wireless network controller and base station |
| CN103199969A (en) * | 2012-01-06 | 2013-07-10 | 财团法人工业技术研究院 | Method and apparatus for handling hybrid automatic repeat request acknowledgement responses |
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| WO2018202064A1 (en) * | 2017-05-05 | 2018-11-08 | 华为技术有限公司 | Method and device for transmitting data |
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| CN103004255A (en) * | 2011-06-17 | 2013-03-27 | 华为技术有限公司 | Processing method of configuration information, wireless network controller and base station |
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| CN103199969A (en) * | 2012-01-06 | 2013-07-10 | 财团法人工业技术研究院 | Method and apparatus for handling hybrid automatic repeat request acknowledgement responses |
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| CN109474382A (en) * | 2017-09-08 | 2019-03-15 | 电信科学技术研究院 | A kind of data transmission method, base station and terminal |
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