CN101499887A - Semi-static resource scheduling method and system, retransmission selection scheduling method and system - Google Patents
Semi-static resource scheduling method and system, retransmission selection scheduling method and system Download PDFInfo
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Abstract
The invention discloses a semi-static resource scheduling method, which comprises the following steps: largest physical resource magnitude that is occupied by business channels, transmission block size (TBS) and physical resources that are corresponding to the TBS are configured; when the TBS is chosen according to network telephone (VOIP) data block size that is loaded by the present business channel, the physical resource magnitude that is occupied by the present business channel is computed according to the TBS and the physical resources corresponding to the TBS; balance of the physical resource that is occupied by the present business channel is obtained according to the largest physical resource magnitude and the occupied physical resource magnitude, and the physical resource balance is determined as adjusting information and encapsulated in a control signaling which is sent to network equipments and used for scheduling. The invention further discloses a semi-static resource scheduling system, a retransmission-optional scheduling method and a retransmission-optional scheduling system that are based on semi-static scheduling. The methods and the systems of the invention can realize VOIP business support and effectively reduce the cost of control channels at the same time.
Description
Technical field
The present invention relates to dispatching technique, relate in particular to professional semi-static resource scheduling method of a kind of network enabled phone (VOIP) and system and based on the retransmission selection scheduling method and the system of semi-persistent scheduling technology.
Background technology
Third generation partner program (3GPP) is as the mechanism that formulates the 3G technology standard, introduced high speed downlink packet access (HSDPA) technology and high speed uplink packet respectively and insert (HSUPA) technology in R5 and R6, the two is referred to as high-speed packet and inserts (HSPA) technology.In addition, in the network architecture of R5, introduced the IP transmission mechanism.Along with IP Multimedia System (IMS, IP Multimedia Subsystem) etc. the development of technology provides speech business to become a kind of trend gradually by IP network, that is to say, current development trend is: in the HSPA evolution system, realize the support to the VOIP business.
Below, set forth at existing HSDPA technology, existing HSUPA technology and existing VOIP business features respectively.
At the HSDPA technology, in order to satisfy the growing demand to the HRPD (high rate packet data) access service of UE, 3GPP Rel5 has introduced the HSDPA technology.Wherein, adopt Adaptive Modulation and Coding (AMC) or mix automatic request retransmission (HARQ) technology and be used to realize high order modulation; And increased the fast dispatch that a media access control layer HSDPA (MAC-hs) entity is used to realize data in base station side.Adopt the key technology of AMC/HARQ and these HSDPA of MAC-hs, not only can obtain higher UE peak rate and cell data throughput, and reduce data transmission delay.
After introducing the HSDPA technology, the channel of corresponding introducing comprises: high speed descending sharing channel (HS-DSCH, High Speed Downlink Shared Channel); High-speed physical downlink shared channel (HS-PDSCH) (HS-PDSCH, HighSpeed Physical Downlink Shared Channel); The shared control channel of HS-DSCH (HS-SCCH, Shared Control Channel for HS-DSCH); Share information channel (HS-SICH, Shared Information Channel).
Wherein, HS-DSCH is used for bearing downlink HSDPA data as the transmission channel of HSDPA, finishes the transmission of high-speed down data, is mapped on the HS-PDSCH.A plurality of subscriber equipmenies (UE) are shared HS-DSCH by time division multiplexing and code division multiplexing.HS-DSCH adopts link adaptation techniques, and always is attended by a DPCH (DPCH) and one or more HS-SCCH.Except that HS-DSCH, other channels all are physical channels.Wherein, up HS-SICH and descending HS-SCCH are the shared control channels of two physical layers relevant with HS-DSCH, by the cooperation of these two control channels, finish the closed-loop control of transfer of data.Here, HS-SICH also can be called the HSDPA uplink feedback channel.HS-SCCH also can be called HSDPA descending scheduling control channel.
Wherein, HS-SCCH is the down control channel of HSDPA, takies two descending spreading factors (SF) and be 16 code channel, adopts fixedly quaternary PSK (QPSK) modulation system, the control information that is used to carry HS-DSCH.Concerning the Transmission Time Interval (TTI) of each HS-DSCH, it is the relevant Downlink Control Information of HS-DSCH that UE carries that HS-SCCH is all arranged.
Following table 1 is a HS-SCCH institute loaded information, as shown in table 1, the control information of HS-SCCH carrying comprises transport format resource indication (TFRI) information, HARQ information, HSDPA Radio Network Temporary Identifier (H-RNTI) information and uplink synchronous control information (SS)/uplink power control information (TPC).Wherein, TFRI information is used to indicate the transformat of HS-DSCH subsequently, comprises transmission block size (TBS) information of time-slot code channel assignment information, modulation system and the transmission block of HS-DSCH.HARQ information comprises HARQ process identifier, incremental redundancy version number, new data indication and is used for the cyclic sequence (HCSN, HS-SCCH Cyclic SequenceNumber) of the HS-SCCH of HS-SCCH channel quality estimation.Here, different incremental redundancy version rate-matched scheme that number decision is different and different 16-QAM bit reset scheme.H-RNTI information is used to distinguish the different UEs on this shared channel of HS-DSCH.
Table 1
Wherein, HS-SICH is the ascending control channel of HSDPA, take a up SF and be 16 code channel, adopt fixedly QPSK modulation system, be used for the data block that receives on the HS-DSCH is replied with ACK/NACK message, and the quality information of feeding back downlink link, promptly HS-DSCH channel quality indication (CQI) is so that help the base station to dispatch better.In addition, the HS-SICH power control control word information of carries downlink also.
And the control procedure of HSDPA shared channel timing relationship and HS-SCCH is specially: after downlink data arrives, send earlier Downlink Control Information through base station scheduling on HS-SCCH; After UE receives HS-SCCH, set apart the control information on the control channel is decoded; Afterwards, according to this control information monitored data channel, and correctly receive HS-DSCH and be mapped to descending HSDPA data on the HS-PDSCH; At last, utilize corresponding HS-SICH channel feedback ACK/NACK message to give the base station.
At the HSUPA technology, in order to improve up peak rate, satisfy such as the UE that uses the game class business, especially when the UE that uses the game class business more for a long time to the requirement of upstream rate, therefore, in the agreement of R6/R7 version, for Frequency Division Duplexing (FDD) (FDD) system and time division duplex (TDD) system, introduced this up enhancement techniques of HSUPA technology in succession,, reduced up access delay to improve power system capacity and covering.Thereby can satisfy the requirement of UE to the system uplink overall throughput.
Be similar to the HSDPA technology, in the HSUPA technology, topmost key technology also comprises base station scheduling, AMC and HARQ.Different with this descending enhancement techniques of HSDPA technology is that the base station scheduling technology that relates among the HSUPA also needs UE to send dispatch request information, reporting uplink buffering (Buffer) information and other relevant information.The relevant information here comprises the physical layer metrical information, such as the path loss of Serving cell and adjacent sub-district and the power margin information of UE.Simultaneously, in order to guarantee the reason of the up covering and the stability of a system, the up needs of HSUPA keep noise rise (ROT) be uplink interference in a suitable threshold range, so the base station scheduling technology adopts the scheduling based on power usually.Here, the up link of HSUPA need be controlled by relatively stricter power, so that the uplink interference of assurance uplink load and minizone is in an acceptable scope.
After introducing the HSUPA technology, the channel of corresponding introducing comprises: strengthen dedicated channel (E-DCH), strengthen ascending control channel (E-UCCH), strengthen uplink physical channel (E-PUCH), strengthen uplink random access channel (E-RUCCH), strengthen the automatic request retransmission answering indication signal channel of up mixing (E-HICH), strengthen up absolute access grant channel (E-AGCH).
Here, E-DCH is a transmission channel, and other channels all are physical channels.Wherein, E-DCH also can be called the enhancing uplink transport channel of HSUPA, is used to carry high speed uplink business datum and carrying uplink scheduling information (SI, Schedule Information).E-UCCH is used to transmit the relevant signaling information of up enhancing as control channel.E-UCCH is in the same place with E-DCH is multiplexing usually, is used to transmit the relevant information of current E-DCH HARQ, specifically, is used to carry the HARQ process identification (PID) of UE, the transport format information of E-PUCH.And this transport format information comprises the transformat combination indication (E-TFCI) of E-PUCH and the re-transmission sequence number (RSN) of E-PUCH, thereby the base station can be according to this transport format information to operations such as E-PUCH decode.E-DCH and E-UCCH can be mapped on the E-PUCH simultaneously.
Wherein, be similar to E-UCCH, E-RUCCH also is used to transmit the relevant signaling information of up enhancing as control channel, and is mainly used in the up professional access request that strengthens.So, after UE did not obtain schedule information or transfer of data for a long time, causes the pause of long period, UE utilized E-RUCCH carrying SI, can regain uplink synchronous.Here, this SI comprises the occupied information and the total buffer memory occupied information of UE of Serving cell and adjacent sub-district information on path loss, the relevant information of UE available launch power, the identification information that is cached with the highest priority logical channel of data occupancy, highest priority logical channel buffer memory.Information.
Wherein, E-HICH also can be called HSUPA downstream feedback channel, is used for supporting response messages such as HARQ process feedback ratio such as ACK/NACK.So, after the base station receives the upstream data of UE, utilize the corresponding ACK/NACK response message of this channel feedback.And the ACK/NACK response message of a plurality of UE can utilize orthogonal code to be multiplexed on the E-HICH.In addition, the E-HICH that is used for non-scheduled transmission and scheduled transmission is different, and the E-HICH that is used for non-scheduled transmission also carries the TPC/SS information of up link except the ACK/NACK response message of carrying UE.
Wherein, E-AGCH also can be called HSUPA descending scheduling control channel, is used to carry the scheduling control information of base station to UE.Specifically, be used to carry physical resource and power permission relevant informations such as time slot, code channel, the indication information of carrying UE scheduling E-HICH, information such as the E-UCCH number of carrying in the TTI of a scheduled transmission, and carry the UE identification information.Thereby UE judges whether to belong to the scheduling control information of self to the scheduling control information of UE according to above-mentioned base station.In addition, E-AGCH also is used to carry the scheduling control information of E-DCH.It is 16 code channel that E-AGCH fixedly takies two descending SF, adopts fixedly QPSK modulation system.Simultaneously, carrying is for the information such as SS, TPC of E-PUCH, and shown in following table 2, table 2 is an E-AGCH institute loaded information.E-AGCH institute loaded information comprises cyclic sequence sign indicating number (ECSN) information, E-HICH channel indicating information (EI), number (ENI) information of E-UCCH channel, enhancing Radio Network Temporary Identifier (E-RNTI) information, uplink synchronous control information (SS), the uplink power control information (TPC) of power resource relevant information (PRRI), code channel resource relevant information (CRRI), time interval resource relevant information (TRRI), (RDI) information of resource continuous time, E-AGCH.
| PRRI | The PRRI territory takies 5 bit information positions |
| CRRI | The CRRI territory takies 5 bit information positions; Work as CRRI=31, expression does not distribute physical resource to UE but other information contents are still effective |
| TRRI | The TRRI territory takies 5 bit information positions; Identifying the base station in the mode of bit mapping is UE distributed time slot resource |
| RDI | Whether the RDI territory takies 3 bit information positions, and this territory may not occur, occur passing through |
| The high-level signaling configuration | |
| ECSN | ECSN is 3 bit s; Be used to calculate the Block Error Rate of E-AGCH |
| EI | EI is 2 bit s; Be used for which E-HICH of the UE that dispatches of sign institute correspondence |
| ENI | ENI is 3 bit s; Be used to identify the E-UCCH number that E-PUCH upward carries in the TTI |
| E-RNTI | E-RNTI is 16 bit s; Be used for sign which UE is sent scheduling grant |
| SS | SS is used to keep the uplink synchronous control of E-PUCH |
| TPC | TPC is used for the power control of E-PUCH |
Table 2
And the timing relationship of HSUPA shared channel and the control procedure of E-AGCH are specially: when UE need be when the base station sends up HSUPA data, UE sends separately on E-PUCH or carries earlier and sends SI and ask to the base station; Send the HSUPA control information through base station scheduling and on the E-AGCH channel that UE monitors; UE receive and correct understand this HSUPA control information after, according to timing relationship through certain hour at interval, UE sends E-DCH and is mapped to up HSUPA data on the E-PUCH to the base station; Afterwards, the base station is passed through certain hour again at interval, gives UE at corresponding E-HICH channel feedback ACK/NACK response message.
At the business characteristic of VOIP, the excursion of packet is the 35-49 byte in the data activation phase usually, and the excursion of packet is the 10-24 byte in the non-active period of data.Specifically, the VOIP business features is analyzed as follows, the voice activation phase of VOIP business, the packet size is the 35-49 byte, and the voice activation issue is divided into 20ms according to parlor; The non-active period packet size of the voice of VOIP business 10-24 byte, the non-active period packet of voice is spaced apart 160ms.And the peak data rate that carries the VOIP that maximum 49 bytes obtain according to every 20ms of voice activation phase is: (49 * 8)/20=19.6kbps.Here, the non-active period of voice also can be called the voice quiet period.
By above-mentioned analysis as can be known, because the VOIP business requires than higher real-time, when the VOIP that by HSPA channel bearing flank speed is 19.6kbps is professional, can cause the bigger problem of its control channel expense.And the control channel expense will certainly cause the decline of power system capacity and resource utilization ratio more greatly.Here, be example with the HSDPA technology, when sending the 19.6kbps low speed data, need to use two descending HS-SCCH and a up HS-SICH equally.So, the control channel expense is with respect to transmitting high speed data, and the control channel expense is bigger.
At present, prior art is: support that VOIP is professional and reduce the solution of control channel expense at the FDD system.The FDD system is when supporting that VOIP is professional, in order to reduce the control channel expense, taked a series of optimized Measures, optimized Measures with descending VOIP business is an example, on the one hand, the HS-SCCH that do not transmit control channel when the VOIP packet transmits for the first time, UE directly receives the VOIP packet by the blind Detecting mode under the situation of not receiving HS-SCCH; On the other hand, send control information by HS-SCCH when the VOIP packet transmits for the first time, but packet does not send HS-SCCH when retransmitting.Wherein, so-called blind Detecting refers to: do not need extra control information of transmitting data channel, additionally transmit the transformat indication information such as not needing, UE decodes to data channel according to predefined form, predefined form can also can pass through the agreement fixed configurations by the high-level signaling configuration of link establishment phase.
Support that VOIP is professional and reduce the solution of control channel expense at the FDD system with reference to above-mentioned, if in the TDD system, UE adopts the blind Detecting mode to receive the VOIP packet equally, it is 16 code channel resource that the VOIP packet that transmits one 49 byte so will need eight SF in the 5ms TTI, UE needs the data of these eight code channel resources are carried out blind Detecting all the time, like this, can cause UE power consumption to increase.As seen in the TDD system, directly use the solution of existing FDD system also improper.
In addition, at the characteristics of TDD system and the demand of VOIP business, the correlation technique that adopts in the existing TDD system also is unfavorable for the support to the VOIP business.
For instance, at the retransmit issue of VOIP packet, the TTI of TD SDMA (TD-SCDMA) TDD system is 5ms, and the round-trip delay of HSDPA and HSUPA (RTT, Round Trip Time) is 20ms.According to the packet characteristics of VOIP business, in the voice activation phase, the VOIP data packet arrival is spaced apart 20ms.For the TDD system,, then certainly will cause the further increase of the out of order and time delay of VOIP packet if the data that data are spaced apart 20ms are retransmitted with the RTT of 20ms.As seen adopt the RTT of 20ms in the existing TDD system and be not suitable for the re-transmission of VOIP packet.
And because the VOIP business is had relatively high expectations to service quality (QoS), the scheme of therefore existing carrying VOIP business all is to adopt the QPSK modulation system to carry, and encoding rate can not be too big.So, under the less QPSK modulation system of encoding rate,, then certainly will cause the decline of TDD resource utilization ratio if retransmit the VOIP packet.Consider the requirement of time delay and the requirement of TDD power system capacity, TDD system bearing VOIP business almost can not allow to retransmit, and for guaranteeing the QoS quality of VOIP business, should guarantee from the link-quality aspect.As seen when by existing TDD system bearing VOIP when professional, demand side is problems such as big and power system capacity demand to number of retransmissions restriction, control channel expense.
In addition, if, then, distribute to the private resource of UE and will waste greatly in the professional voice quiet period of VOIP by dedicated channel (DCH) carrying VOIP business.Therefore, also improper by DCH carrying VOIP business.
In sum, because the different characteristics of FDD system and TDD system is applicable to symmetrical service such as the former, the latter is applicable to non-symmetrical service.Therefore, directly apply to TDD system and improper if will have the solution that the FDD system supports that VOIP is professional and reduce the control channel expense now.And at the characteristics of TDD system and the demand of VOIP business, the correlation technique that adopts in the existing TDD system also is unfavorable for the support to the VOIP business.At the TDD system, the present effective solution of also not supporting the VOIP business and reducing the control channel expense.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of semi-static resource scheduling method of the VOIP of support business, when realizing the VOIP business support, has reduced the expense of control channel effectively.
Another object of the present invention is to provide a kind of semi-static resource scheduling system of the VOIP of support business, when realizing, reduced the expense of control channel effectively the VOIP business support.
Another purpose of the present invention is to provide a kind of retransmission selection scheduling method of the VOIP of support business, when realizing the VOIP business support, has reduced the expense of control channel effectively.
A further object of the present invention is to provide a kind of retransmission selection scheduling system of the VOIP of support business, when realizing the VOIP business support, has reduced the expense of control channel effectively.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of semi-static resource scheduling method, this method may further comprise the steps:
The greatest physical stock number of A1, configuration service channel occupancy is provided with transmission block size TBS and described TBS corresponding physical resource;
B1, after selecting described TBS according to the networking telephone VOIP data block of current business channel bearing size, calculate the physical resource amount of current business channel occupancy according to described TBS and described TBS corresponding physical resource; Obtain the physical resource surplus of described current business channel occupancy according to described greatest physical stock number and described physical resource amount, and described physical resource surplus is defined as adjustment information is encapsulated in the control signaling, send to network equipment and dispatch.
Wherein, in the steps A 1, described TBS of setting and TBS corresponding physical resource comprise that agreement fixedly installs mode and high-level signaling set-up mode.
Wherein, in the steps A 1, also comprise after described TBS of setting and the TBS corresponding physical resource: will cover physical resource corresponding to the physical resource of big TBS value corresponding to less TBS value; And in same time slot, described physical resource corresponding to less TBS value occupies the edge code channel resource of place time slot as far as possible.
Wherein, also comprise after described TBS of setting and the TBS corresponding physical resource: reconfigure described TBS and TBS corresponding physical resource.
Wherein, at uplink direction, described step B1 is specially:
B111, user equipment (UE) select up TBS according to the up VOIP data block size that promptly will send and according to the corresponding relation of up TBS and physical resource, calculate the concrete physical resource information of required use, according to the timing relationship that sets in advance between Traffic Channel and the control channel, carry up VOIP control signaling by described control channel and will comprise that the TBS index information of up TBS and physical resource corresponding relation sends to the base station;
UE sends described up VOIP data block according to described timing relationship based on described concrete physical resource information;
B112, described base station receive described up VOIP control signaling and decoding earlier, according to the corresponding relation that obtains up TBS and physical resource in the described TBS index information, calculate the shared described concrete physical resource information of described up VOIP data block that next will receive;
The base station is defined as described concrete physical resource information the physical resource amount of current business channel occupancy, and calculate the physical resource surplus of current business channel occupancy in conjunction with the greatest physical stock number that the Traffic Channel of described configuration takies, described physical resource surplus is defined as adjustment information is encapsulated in the control signaling and sends to base station dispatcher;
The base station is according to described timing relationship, based on described up VOIP data block of described concrete physical resource message pick-up and decoding.
Wherein, among the step B112, described base station also comprises after receiving up VOIP data block and decoding:
Described base station is according to described timing relationship, and the descending VOIP control signaling of carrying by described control channel feeds back to UE with decoded information; When the base station detects up VOIP data block decoding error, start the retransmission selection scheduling process.
Wherein, described control channel further is: the control channel that strengthens the automatic request retransmission answering indication signal channel of up mixing E-HICH type.
Wherein, in the down link direction, described step B1 is specially:
The descending VOIP data block size that be about to send is periodically judged in B121, described base station, if described descending VOIP data block size is zero, and execution in step B122 then; Otherwise, execution in step B123;
The greatest physical stock number that B122, base station take the Traffic Channel of described configuration is defined as described adjustment information and is encapsulated in the control signaling and sends to base station dispatcher; Finish current semi-static resource scheduling flow process;
Simultaneously, the base station is that 0 information sends to UE by descending VOIP control signaling with TBS; Perhaps, the base station does not send any TBS information; If UE detects less than the TBS information in the described descending VOIP control signaling, then UE judges that ensuing descending VOIP resource sends without any the VOIP data constantly; Finish current semi-static resource scheduling flow process;
Descending TBS is selected according to described descending VOIP data block size in B123, described base station, and according to the corresponding relation of described descending TBS and physical resource, the concrete physical resource information that calculating need take, according to the timing relationship that sets in advance between Traffic Channel and the control channel, the described descending VOIP control signaling of carrying by described control channel will comprise that the TBS index information of descending TBS and physical resource corresponding relation sends to UE;
Simultaneously, the base station is defined as the actual physical resource amount that takies of current business channel with described concrete physical resource information, and calculate the physical resource surplus of current business channel occupancy in conjunction with the greatest physical stock number that the Traffic Channel of described configuration takies, described physical resource surplus is defined as adjustment information is encapsulated in the control signaling and sends to described base station dispatcher; Finish current semi-static resource scheduling flow process.
Wherein, among the step B123, after sending to UE with the TBS index information, described descending VOIP control signaling by the control channel carrying also comprises:
B124, described base station send described descending VOIP data block according to described timing relationship based on described concrete physical resource information;
B125, described UE receive described descending VOIP control signaling and decoding earlier, according to the corresponding relation that obtains descending TBS and physical resource in the described TBS index information, calculate the shared described concrete physical resource information of described descending VOIP data block that next will receive;
B126, UE are based on described descending VOIP data block of described concrete physical resource message pick-up and decoding.
Wherein, step B126 also comprises:
The up VOIP control signaling of described UE by control channel carrying feeds back to described base station with the decoded information of descending VOIP data block; When the base station detects descending VOIP data block decoding error by up VOIP control signaling, start the retransmission selection scheduling process.
Wherein, when delay variation took place, step B124 further was: described base station adopts data cached mode or scheduling mode to send the descending VOIP data block that delay variation takes place.
A kind of semi-static resource scheduling system, this system comprises: Traffic Channel takies the computing unit that unit, current business channel occupancy physical resource amount are set of dispensing unit, TBS and the physical resource corresponding relation of greatest physical stock number; Wherein,
Traffic Channel takies the dispensing unit of greatest physical stock number, the greatest physical stock number that is used to its Traffic Channel of VOIP data block configuration of carrying to take;
TBS and physical resource corresponding relation the unit is set, be used to be provided with the corresponding relation of TBS and physical resource;
The computing unit of current business channel occupancy physical resource amount, be used for obtaining described greatest physical stock number, from the corresponding relation that the unit obtains TBS and physical resource that is provided with of described TBS and physical resource corresponding relation from the dispensing unit of described greatest physical stock number; Behind the VOIP data block size selection TBS according to the current business channel bearing, calculate the physical resource amount of current business channel occupancy according to the corresponding relation of described TBS and physical resource; Obtain the physical resource surplus of current business channel occupancy according to the physical resource amount of described greatest physical stock number and described current business channel occupancy, and with described physical resource surplus be defined as adjustment information be encapsulated into control signaling in, send to network equipment.
Wherein, the unit that is provided with of described TBS and physical resource corresponding relation comprises that agreement fixedly installs module and high-level signaling is provided with module.
A kind of retransmission selection scheduling method, this method may further comprise the steps:
A2, configuration are used for the descending scheduling control channel of VOIP data block retransfer scheduling, and send by the descending scheduling control channel of link establishment process message with described configuration;
If decoded information is correct in the B2 semi-static resource scheduling process, then UE stops to monitor and receiving the descending scheduling control channel of described configuration;
If decoded information mistake in the semi-static resource scheduling process, then UE starts the descending scheduling control channel of monitoring and receiving described configuration; Simultaneously, after base station dispatcher judges that according to UE priority, load condition and delay requirement needs are carried out re-transmission, start retransmission selection scheduling.
Wherein, the descending scheduling control channel of described configuration comprises: high speed uplink packet inserts descending scheduling control channel E-AGCH and high speed downlink packet inserts descending scheduling control channel HS-SCCH.
Wherein, at uplink direction, step B2 further is:
If the B211 decoded information is correct, then described base station is by the descending VOIP control signaling of control channel carrying, will feed back to UE at the ACK of up VOIP data block after, described UE stops to monitor and receiving described E-AGCH; If the decoded information mistake, then the base station is by described descending VOIP control signaling, will feed back to UE at the NACK of described up VOIP data block after, UE starts to monitor and also receives described E-AGCH.
Wherein, among the step B211, also comprise behind the described startup retransmission selection scheduling:
B212, base station dispatcher send the scheduling control information that retransmits up VOIP data block by described E-AGCH, and carry the sign that will retransmit up VOIP data block to some extent in the described scheduling control information.
Wherein, also comprise behind the step B212:
B213, described UE judge according to the UE sign that listens on the described E-AGCH whether UE self is scheduled;
B214, described UE are according to default Traffic Channel and the timing relationship between the described control channel, on the resource of described scheduling control information appointment, according to the sign of the up VOIP data block of described re-transmission of carrying in the scheduling control information, retransmit the up VOIP data block that the indicated needs of described sign are retransmitted; Simultaneously, UE indicates this to retransmit the sign of up VOIP data block in E-UCCH;
Decode to the up VOIP data block of described re-transmission in B215, base station.
Wherein, the bearing mode of the up VOIP data block sign of described re-transmission is: the sign of carrying the up VOIP data block of described re-transmission in described E-AGCH and described E-UCCH simultaneously.
Wherein, in the down link direction, step B2 further is:
If the B221 decoded information is correct, then described base station is by the up VOIP control signaling of control channel carrying, will feed back to UE at the ACK of descending VOIP data block after, described UE stops to monitor and receiving described HS-SCCH; If the decoded information mistake, then the base station is by described up VOIP control signaling, will feed back to the base station at the NACK of described descending VOIP data block after, UE starts to monitor and also receives described HS-SCCH.
Wherein, among the step B221, also comprise behind the described startup retransmission selection scheduling:
B222, base station dispatcher send the scheduling control information that retransmits descending VOIP data block by described HS-SCCH, and carry the sign that will retransmit descending VOIP data block to some extent in the described scheduling control information.
Wherein, also comprise behind the step B222:
B223, described base station send the descending VOIP data block of described re-transmission according to default Traffic Channel and the timing relationship between the described control channel on described Traffic Channel;
B224, described UE judge according to the UE sign that listens on the HS-SCCH whether UE self is scheduled, and judge the descending VOIP data block that needs are retransmitted according to the sign of the descending VOIP data block of described re-transmission;
B225, described UE be according to described timing relationship, receives the descending VOIP data block of described re-transmission and decode on the resource of described scheduling control information appointment.
Wherein, the bearing mode of the descending VOIP data block sign of described re-transmission is: the sign of the descending VOIP data block of the described re-transmission of carrying in described HS-SCCH.
A kind of retransmission selection scheduling system, this system comprises: dispensing unit, transmitting element, judging unit; Wherein,
Dispensing unit is used for configurating downlink scheduling controlling channel and sends to described transmitting element;
Transmitting element is used for sending by the descending scheduling control channel of link establishment process message with described configuration;
Judging unit after being used to receive the descending scheduling control channel of described configuration, is carried out the corresponding retransmission selection scheduling according to the judgement of decoded information in double static resource scheduling process and is handled.
Wherein, described judging unit, be further used for judging that decoded information is correct after, UE stops to monitor and receiving the descending scheduling control channel of described configuration.
Wherein, described judging unit, be further used for judging the decoded information mistake after, UE start to monitor and receives the descending scheduling control channel of described configuration; Simultaneously, after base station dispatcher judges that according to UE priority, load condition and delay requirement needs are carried out re-transmission, start retransmission selection scheduling.
The present invention adopts semi-static resource scheduling method and supports the VOIP business based on the retransmission selection scheduling method of semi-static resource scheduling technology in the TDD system, when realizing the VOIP business support, has reduced the expense of control channel effectively.
Wherein, the implementation procedure that adopts semi-static resource scheduling method to dispatch comprises two stages.First stage is a link establishment phase, and network is that VOIP UE configuration service channel resource promptly reserves the greatest physical stock number that Traffic Channel takies, and the control signal resource of configuration control channel carrying.The corresponding relation of up/descending TBS and physical resource is set.In addition, consider power system capacity, make multiplexing identical traffic channel resource of a plurality of UE and control signal resource, distribute to N different UE respectively such as the mode that the same traffic channel resource of a N continuous subframe was cut apart with the time.Thereby on the basis of existing system capacity, reach the purpose that improves resource utilization.
Second stage is that business is carried out the stage, behind the VOIP data block selection TBS of base station/UE according to the current business channel bearing, according to the actual physical resource amount that takies of corresponding relation calculating current business channel of up/descending TBS and physical resource.Afterwards, the base station is according to greatest physical stock number and the actual physical resource amount that takies of current business channel reserved for Traffic Channel, obtain the physical resource surplus of current business channel occupancy, and this physical resource surplus is defined as adjustment information is encapsulated in the control signaling, prior notice is given base station dispatcher.That is to say, farthest the resource of voice quiet period is contributed to base station dispatcher, so that base station dispatcher adopts this adjustment information that other UE and VOIP business are dispatched.
Wherein, the implementation procedure that employing is dispatched based on the retransmission selection scheduling method of semi-static resource scheduling technology is: based on the semi-static resource scheduling technology, do not set fixing number of retransmissions, base station dispatcher is selected the data block of decoded in error is dispatched re-transmission according to the influencing factors such as demand of UE priority, system loading situation and time delay.The decoded in error information of data block that Traffic Channel is carried passes to the base station by the control signaling.
In sum, adopt the present invention under the resource requirement prerequisite that guarantees the VOIP business, farthest the code channel resource that VOIP voice quiet period be need not to take is given the base station dispatcher use efficiently, has reduced the expense of control channel effectively.And then farthest avoided the problem of resource fragmentation, improved resource utilization.And, can also solve the problem of uplink synchronous and power control well.
Description of drawings
Fig. 1 is the realization flow schematic diagram of semi-static resource scheduling method principle of the present invention;
Fig. 2 is the realization flow schematic diagram of retransmission selection scheduling method principle of the present invention.
Embodiment
Core concept of the present invention is: the present invention is in the TDD system, adopt the semi-static resource scheduling technology and select to dispatch the VOIP business of supporting to retransmitting based on the semi-static resource scheduling technology, when realizing, reduced the expense of control channel effectively to the VOIP business support.
For making the purpose, technical solutions and advantages of the present invention clearer, by the following examples and with reference to accompanying drawing, the present invention is described in more detail.
As shown in Figure 1, a kind of semi-static resource scheduling method, this method may further comprise the steps:
Step 101, at link establishment phase, network is the greatest physical stock number of VOIP UE configuration service channel occupancy, and the control signal resource of control channel carrying.Set in advance the TBS that is used for the transmitting voip data block on the Traffic Channel, and with this TBS corresponding physical resource.Set in advance the timing relationship between Traffic Channel and the control channel.
Here, the setting principle that sets in advance with TBS corresponding physical resource is: at first, according to the feature of VOIP data block n kind TBS is set.Then, according to the link-quality demand of VOIP UE, for every kind of TBS is provided with and its corresponding physical resource, the concrete physical resource information corresponding with the physical resource of this setting is transferred to the high-level signaling setting.Such as, TBS
1Corresponding concrete physical resource information is M
1, TBS
2Corresponding concrete physical resource information is M
2, TBS
nCorresponding concrete physical resource information is M
nWherein, concrete physical resource information M
j(1＜=j＜=n) comprises configuration informations such as the shared time slot of the physical resource of setting, code channel.
At TBS, physical resource and concrete physical resource information, for instance, TBS is 96, and this TBS corresponding physical resource is that two SF are i.e. two the basic resources units (BRU) of 16 code channel, and so-called BRU refers to that SF is a code channel of 16.The concrete physical resource information of this physical resource correspondence can be the 0th and the 1st code channel in 16 code channels for SF in the time slot.
Here, set in advance with TBS corresponding physical resource and comprise dual mode: agreement fixedly installs mode and high-level signaling set-up mode.
Wherein, the agreement mode of fixedly installing is: adopt agreement to fixedly install every kind of TBS, and every kind of TBS corresponding physical resource; And be that the pairing concrete physical resource information of physical resource that every kind of TBS is provided with is transferred to the high-level signaling setting.At link establishment phase, every kind of TBS, and every kind of TBS corresponding physical resource gives base station/UE by notice of settlement, the concrete physical resource information of every kind of TBS correspondence is notified to base station/UE by high-level signaling.Here, at every kind of TBS corresponding physical resource is set, for instance, 5 kinds of TBS of agreement fixed configurations, TBS index=4 then, corresponding eight BRU; Corresponding six BRU of TBS index=3, by that analogy, the corresponding zero BRU of TBS index=0.
Fixedly install mode compared to agreement, the high-level signaling set-up mode does not fixedly install every kind of TBS, and every kind of TBS corresponding physical resource.The high-level signaling set-up mode is: every kind of TBS, and every kind of TBS corresponding physical resource, the pairing concrete physical resource information of physical resource that is provided with for every kind of TBS is all by high-level signaling setting and notice.
Step 102, business are carried out the stage, behind the VOIP data block size selection TBS according to the current business channel bearing, calculate the current business channel actual physical resource amount that take according to this TBS and this TBS corresponding physical resource when base station or UE.
Step 103, base station obtain the physical resource surplus of current business channel occupancy according to greatest physical stock number of reserving for Traffic Channel and the actual physical resource amount that takies of current business channel, and with this physical resource surplus be defined as adjustment information be encapsulated into control signaling in, send to network equipment.Network equipment adopts this adjustment information that other business outside other VOIP UE or the VOIP are dispatched.
Here, network equipment can be base station dispatcher.
And then, produce resource fragmentation for fear of semi-static resource scheduling method, be optimized setting in advance in the above-mentioned steps 101 with TBS corresponding physical resource, so in the step 101, set in advance the TBS that is used for the transmitting voip data block on the Traffic Channel, and with this TBS corresponding physical resource after also comprise Optimizing operation, make idle physical resource serialization.
Optimizing operation is specially: will be covered as the physical resource that the less VOIP data block of TBS is disposed for the physical resource that the bigger VOIP data block of TBS is disposed.And in same time slot, the physical resource that is disposed for the less VOIP data block of TBS occupies the edge code channel resource of the resource number of place time slot by two ends as far as possible.Here, the physical resource that is disposed for the bigger VOIP data block of TBS is promptly corresponding to the physical resource of big TBS value.The physical resource that is disposed for the less VOIP data block of TBS is promptly corresponding to the physical resource of less TBS value.
The benefit of above-mentioned Optimizing operation is: the physical source distributing at a time slot is given a plurality of UE, and under the situation of distributing to two UE, the maximum TBS of each UE has distributed eight code channel resources respectively.So, if the TBS that UE selects according to actual VOIP data block size has only used four code channels, then eight of two UE free time discontinuous words of code channel resource are not easy to base station dispatcher and dispatch.Adopt above-mentioned Optimizing operation can make idle physical resource serialization as far as possible.
For instance, TBS
1With TBS
2Compare TBS
2Be big TBS value.If TBS
1The physical resource that distributes of VOIP data block for being numbered two BRU of Cc=0 and Cc=1 in certain time slot i; TBS then
2The physical resource that distributed of VOIP data block be to be numbered Cc=0 and Cc=1 in the same time slot i, Cc=2, four BRU of Cc=3 have promptly covered Cc=0 and Cc=1.If TBS
1The VOIP data block resource of distributing for being numbered two BRU of Cc=15 and Cc=14 in certain time slot i; Then, TBS
2The VOIP data block resource of being distributed be to be numbered Cc=15 and Cc=14 in the identical time slot i, Cc=13, four BRU of Cc=12 have promptly covered Cc=15 and Cc=14.
In sum, in conjunction with TBS being set in the above-mentioned semi-static resource scheduling method and giving an example, provide the typical plan of establishment of a kind of TBS and corresponding physical resource below with the scheme of its corresponding physical resource.
At first, VOIP business data packet characteristics are analyzed the scope 10-24 byte of voice quiet period packet, voice activation phase packet scope 35-49 byte; Data block that so can VOIP is set to 4 kinds of TBS.Wherein, TBS
1=12 bytes, TBS
2=24 bytes, TBS
3=36 bytes, TBS
4=49 bytes, 4 kinds of different TBS sizes are geometric ratio substantially and distribute, and being converted into bit form is TBS
1=96 bits, TBS
2=192 bits, TBS
3=288 bits, TBS
4=392 bits.Especially, use TBS
0=0 bit, the situation that expression sends without any the VOIP data.
Then, calculate the different needed physical resources of TBS, when adopting the QPSK modulation system, two BRU in 5ms TTI can carry 176 bit informations at most, and adopting two BRU to carry 12 bytes is that to obtain corresponding code check be 96 bits/176 bits=0.5454 to 96 bit VOIP data blocks.Under the essentially identical situation of code check, TBS
2The VOIP data block that is 192 bits needs four BRU carryings, and TBS3 is that the VOIP data block of 288 bits needs six BRU carryings, and TBS4 is that the VOIP data block of 392 bits needs eight BRU carryings.
Situation for traditional DPCH carrying traditional voice service, the voice of adaptive multi-rate (AMR) 12.2kbps and 3.4k signal multiplex are on two BRU of TTI=20ms, the voice of tradition AMR12.2kbps adopt the QPSK modulation system, and the code check that calculates gained is 0.46.Like this, according to the typical plan of establishment of above-mentioned TBS and corresponding physical resource, the code check of VOIP and the code check of traditional DPCH are suitable substantially.As shown in table 3, listed the code check professional and traditional voice service of VOIP under the typical plan of establishment in the table 3 and contrasted.
Table 3
And, based on the link-quality analysis under the typical plan of establishment of above-mentioned TBS and corresponding physical resource, further carry out above-mentioned Optimizing operation, as shown in table 4, table 4 has provided and a kind of TBS and corresponding physical resource has been optimized the typical plan of establishment after the operation.As can be known from Table 4, cover physical resource corresponding to less TBS value corresponding to the physical resource of big TBS value, occupy the edge code channel resource corresponding to the physical resource of less TBS value as far as possible, promptly resource number depends on the BRU at two ends.
Table 4
And then in above-mentioned semi-static resource scheduling method, the TBS of setting and TBS corresponding physical resource also comprise after this is provided with: according to current business demand, reconfigure TBS and TBS corresponding physical resource.Such as current business demand be: reduce encoding rate.In order further to reduce encoding rate, guarantee the link-quality of VOIP business so, in the step 101, set in advance the TBS that is used for the transmitting voip data block on the Traffic Channel, and with this TBS corresponding physical resource after also comprise the operation that is used to reduce encoding rate.
This operation that is used to reduce encoding rate is specially: for identical TBS, identical TBS is provided with more physical resource for the TBS value.
The typical plan of establishment of so still continuing to use TBS and corresponding physical resource for instance, such as being TBS
1Be three BRU of VOIP data block configuration of 96 bits, be TBS
2Be six BRU of VOIP data block configuration of 192 bits, be TBS
3Be nine BRU of data block configuration of 288 bit VOIP, be TBS
4Be 12 BRU of VOIP data block configuration of 392 bits.Similarly, can also change the number of TBS,, and set every kind of TBS corresponding physical resource such as the TBS of configuration greater than 5 kinds.
In addition, when TBS and its corresponding physical resource are set, also need to consider the problem of this plan of establishment bring to the power system capacity and the level of resources utilization.Can not reduce power system capacity and resource utilization ratio in order to improve the VOIP link-quality simply.Below still continuing to use the typical plan of establishment of TBS and corresponding physical resource gives an example.
Specifically, the capacity of traditional AMR12.2kbps speech business and VOIP business is compared as can be known, the traditional voice service data rate is generally AMR12.2kbps.Because the problem of VOIP service protocol header overhead is even adopt the traffic peak speed of the VOIP of protocol compressed technology also can be higher than AMR12.2kbps.So, have only and adopt the mode of similar semi-static resource scheduling to reduce the shared physical resource amount of VOIP voice quiet period as far as possible, could guarantee that the VOIP volume of business is not subjected to greater loss.Under the above-mentioned typical plan of establishment, the voice UE of a traditional AMR12.2kbps takies two BRU, and TTI is 20ms.A VOIP UE takies eight BRU, TTI is 5ms, four physical resources that the UE time division multiplexing is identical in the 20ms, then be equivalent to each VOIP UE and take two interior BRU of TTI=20ms, therefore, according to typical VOIP data block in the above-mentioned typical plan of establishment the setting of corresponding TBS and its corresponding physical resource, the capacity of VOIP UE can not incur loss substantially than the capacity of traditional voice service.
Method embodiment one is: adopt semi-static resource scheduling method to dispatch at uplink direction, reduce the solution of control channel expense effectively.The realization flow of present embodiment may further comprise the steps:
Step 201, at link establishment phase, network is the greatest physical stock number of VOIP UE configuration service channel occupancy, and the control signal resource of control channel carrying.Can fixedly install mode and the high-level signaling set-up mode sets in advance the up TBS that is used to transmit up VOIP data block on the Traffic Channel by agreement, and with this up TBS corresponding physical resource.And, can fixedly install mode and high-level signaling set-up mode by agreement and set in advance timing relationship between Traffic Channel and the control channel.
Step 202, UE are selected up TBS according to the up VOIP data block size that promptly will send, and according to the corresponding relation of up TBS and physical resource, calculate the shared concrete physical resource information of up VOIP data block.According to the timing relationship that sets in advance between Traffic Channel and the control channel, the up VOIP control signaling of carrying by control channel sends to the base station with the TBS index information.And the concrete physical resource information here is up VOIP physical channel resources.The TBS index information here comprises the corresponding relation of up TBS and physical resource.
Here, for instance, up TBS is 96 bits, and this up TBS corresponding physical resource is two BRU.The concrete physical resource information that then calculate to obtain this physical resource correspondence can be the 0th and the 1st code channel in 16 code channels for SF in the time slot.
Here, at timing relationship, such as for UE, control channel always sends to the base station in advance than Traffic Channel.
Here, the control channel that is used to carry up VOIP control signaling further is: the control channel of E-HICH type.
Step 203, UE send up VOIP data block according to the timing relationship that sets in advance between Traffic Channel and the control channel based on the shared concrete physical resource information of calculating of up VOIP data block.
Step 204, base station receive up VOIP control signaling and decoding earlier, obtain the corresponding relation of up TBS and physical resource in the TBS index information.Corresponding relation according to up TBS and physical resource calculates the shared concrete physical resource information of up VOIP data block that next will receive.
Here, it is to be noted, because according to the timing relationship that sets in advance between Traffic Channel and the control channel, control channel always sends to the base station in advance than Traffic Channel, therefore, the base station receives the up VOIP control signaling in the step 202 earlier, after receive up VOIP data block in the step 203.
The shared concrete physical resource information of the up VOIP data block that step 205, base station will calculate is defined as the actual physical resource amount that takies of current business channel, and calculates the physical resource surplus of current business channel occupancy in conjunction with the greatest physical stock number that the Traffic Channel of distributing to this UE takies.If the physical resource surplus is arranged, then this physical resource surplus is defined as adjustment information and is encapsulated into control and sends to base station dispatcher in the signaling.So that base station dispatcher adopts this schedule information that other UE or other business are dispatched.
Step 206, base station be according to the timing relationship that sets in advance between Traffic Channel and the control channel, decodes based on the shared up VOIP data block of concrete physical resource message pick-up of the up VOIP data block that calculates and according to the TBS index information.
Step 207, finish decoding after, the base station is according to setting in advance timing relationship between Traffic Channel and the control channel, the descending VOIP control signaling by the control channel carrying feeds back to UE with the decoded information of previous up VOIP data block such as ACK/NACK.And, when the base station detects previous up VOIP data block decoding error, base station initiated follow-up retransmission selection scheduling process.
Method embodiment two: adopt semi-static resource scheduling method to dispatch in the down link direction, reduce the solution of control channel expense effectively.The realization flow of present embodiment may further comprise the steps:
Step 301, at link establishment phase, network is the greatest physical stock number of VOIP UE configuration service channel occupancy, and the control signal resource of control channel carrying.Can fixedly install mode and the high-level signaling set-up mode sets in advance the descending TBS that is used to transmit descending VOIP data block on the Traffic Channel by agreement, and with this descending TBS corresponding physical resource.And, can fixedly install mode and high-level signaling set-up mode by agreement and set in advance timing relationship between Traffic Channel and the control channel.
The descending VOIP data block size that is about to transmission in the down buffer storage district is periodically detected in step 302, base station, if judging the descending VOIP data block size that promptly will send is zero, just descending VOIP is in the voice quiet period and when sending without any the VOIP data, then execution in step 303; Otherwise if judge that the descending VOIP data block size that promptly will send is non-vanishing, then execution in step 304.
Step 303, base station will dispose all physical resources to this UE and promptly dispose greatest physical stock number that the Traffic Channel to this UE takies and be defined as described adjustment information and be encapsulated in the control signaling and send to base station dispatcher.So that base station dispatcher adopts this adjustment information to be used for scheduling to other UE or other business.Finish current semi-static resource scheduling flow process.
Here, execution in step 303 time, the base station is that 0 information sends to UE by descending VOIP control signaling with TBS; Perhaps, the base station does not send any TBS information, represents that TBS on the horizon is 0.Afterwards, if UE detects less than the TBS information in the descending VOIP control signaling, then UE just judges directly that ensuing descending VOIP resource sends without any the VOIP data constantly, and UE need not the VOIP Traffic Channel is received.Finish current semi-static resource scheduling flow process.
Here it is pointed out that TBS
0Be that 0 information sends to UE; Perhaps do not send any TBS information and all represent situation about sending without any the VOIP data.
Step 304, base station are selected descending TBS according to the descending VOIP data block size that promptly will send, and according to the corresponding relation of descending TBS and physical resource, calculate the shared concrete physical resource information of descending VOIP data block.According to the timing relationship that sets in advance between Traffic Channel and the control channel, the descending VOIP control signaling of carrying by control channel sends to UE with the TBS index information.And the concrete physical resource information here is descending VOIP physical channel resources.The TBS index information here comprises the corresponding relation of descending TBS and physical resource.
Here, in the time of execution in step 304, the shared concrete physical resource information of the descending VOIP data block that the base station will calculate is defined as the actual physical resource amount that takies of current business channel, and calculate the physical resource surplus of current business channel occupancy in conjunction with the greatest physical stock number that the Traffic Channel of distributing to this UE takies, this physical resource surplus is defined as adjustment information is encapsulated in the control signaling and sends to base station dispatcher.So that base station dispatcher adopts this schedule information that other UE or other business are dispatched.Finish current semi-static resource scheduling flow process.
Here, in the step 304, after sending to UE with the TBS index information, the descending VOIP control signaling by control channel carrying also comprises:
Step 305, base station send descending VOIP data block according to the timing relationship that sets in advance between Traffic Channel and the control channel based on the shared concrete physical resource information of calculating of descending VOIP data block.
Here, when delay variation took place, step 305 further was: the base station adopts data cached mode or scheduling mode to send the descending VOIP data block that delay variation takes place.
At the delay variation problem that descending VOIP data block relates to, below set forth and avoid the delay variation way to solve the problem.
The immediate problem that need consider by the speech business of IP transmission network transmitting voip is the time court of a feudal ruler jitter problem of VOIP data block, though transmission network has taked some measures to avoid the delay variation problem, but, still may there be delay variation in inevitable data in transmission course, down link direction particularly, the immediate problem that delay variation brings is that descending VOIP data block is abandoned.
So, the present invention avoids the delay variation way to solve the problem to comprise dual mode.The one: the mode that adopts data cached mode promptly descending VOIP data block to be carried out buffer memory sends the descending VOIP data block that delay variation takes place.The 2nd: adopt scheduling mode to send the descending VOIP data block that delay variation takes place.
At adopting data cached mode, such as the base station in the down link direction, the descending VOIP data block of a buffer memory n 20ms in advance, and be whether the cycle continuous detecting has new descending VOIP data block to reach with 20ms.Descending VOIP data block to buffer memory starts a transmission timer, and the default time of this timer is T=n * 20ms.Surpass n * 20ms and just send data.If find to surpass the number of default time of timer or the descending VOIP data block of buffer memory more than or equal to n, no matter follow-up whether then have new descending VOIP data block to reach, adopt the principle of first-in first-out to send descending VOIP data block, perhaps will find to surpass timer Preset Time descending VOIP data block constantly and from buffer memory, send, with the delay variation of antagonism transport network layer.And avoiding the descending VOIP data block of voice quiet period is the problems of being introduced when transmitting at interval such as time delay increase with 160ms.
At adopting scheduling mode, the predefined delivery time in base station is to send data every 20ms.The base station is that the descending VOIP data block that will reach in the cycle sends with 20ms so.Descending VOIP data block for postponing because of delay variation to reach that is to say that the moment that descending VOIP data block arrives the base station has been later than the predefined delivery time in base station.So, if not adopting above-mentioned data cached mode handles, then every 20ms base station need send once descending VOIP data block, missed the delivery time of every 20ms, then at the delivery time of next 20ms, have new descending VOIP data block and reach, the descending VOIP data block that old data promptly postpone to arrive will be discarded by the base station.
In order to evade this problem, can also adopt scheduling mode to send the descending VOIP data block that delay variation takes place.Such as, when link establishment phase, network divides the HS-SCCH that is used in the VOIP dynamic dispatching for VOIP UE.Whether UE monitors HS-SCCH continuously when carrying out semi-static resource scheduling, have the descending VOIP data block that delay variation takes place to arrive to detect.Here, it is pointed out that under this scheduling mode that the sign of the descending VOIP data block of delay variation need will take place, and promptly the pointer information of the descending VOIP data block of this generation delay variation sends to UE.Described pointer information is expressed as: the difference of the descending VOIP data block time of advent of current generation delay variation and predefine time of advent.
Carry out the descending VOIP data block place TTI of this scheduling and the difference of predefine delivery time.
Wherein, the pointer information that descending VOIP data block of delay variation takes place for this is used for indicating the descending VOIP data block of generation delay variation that will send with the form of pointer.The concrete bearing mode of described pointer information and concrete indicating mode are with the mode of the re-transmission pointer information that is used to retransmit up/descending VOIP data block in the later retransmission selection scheduling process.Here do not set forth.It should be explicitly made clear at this point that this re-transmission pointer information promptly retransmits the pointer information of up/descending VOIP data block, just the sign of the up/descending VOIP data block of Chong Chuaning.
Step 306, UE receive descending VOIP control signaling and decoding earlier, obtain the corresponding relation of descending TBS and physical resource in the TBS index information.Corresponding relation according to descending TBS and physical resource calculates the shared concrete physical resource information of descending VOIP data block that next will receive.
Here, it is to be noted, because according to the timing relationship that sets in advance between Traffic Channel and the control channel, control channel always sends to UE in advance than Traffic Channel, therefore, UE receives the descending VOIP control signaling in the step 304 earlier, after receive descending VOIP data block in the step 305.
Step 307, UE are decoded based on the shared descending VOIP data block of concrete physical resource message pick-up of the descending VOIP data block that calculates and according to the TBS index information.
Step 308, finish decoding after, the up VOIP control signaling of UE by control channel carrying feeds back to the base station with the decoded information of previous descending VOIP data block such as ACK/NACK.And, when the base station receives that the decoded information of UE feedback is NACK, that is to say when the base station detects descending VOIP data block decoding error by up VOIP control signaling base station initiated follow-up retransmission selection scheduling process.
Semi-static resource scheduling of the present invention system, this system comprises: Traffic Channel takies the computing unit that unit, current business channel occupancy physical resource amount are set of dispensing unit, TBS and the physical resource corresponding relation of greatest physical stock number.
Wherein, Traffic Channel takies the dispensing unit of greatest physical stock number, the greatest physical stock number that is used to its Traffic Channel of VOIP data block configuration of carrying to take.TBS and physical resource corresponding relation the unit is set, be used to be provided with the corresponding relation of TBS and physical resource.The computing unit of current business channel occupancy physical resource amount, be used for obtaining described greatest physical stock number, from the corresponding relation that the unit obtains TBS and physical resource that is provided with of described TBS and physical resource corresponding relation from the dispensing unit of described greatest physical stock number; Behind the VOIP data block size selection TBS according to the current business channel bearing, calculate the physical resource amount of current business channel occupancy according to the corresponding relation of described TBS and physical resource; Obtain the physical resource surplus of current business channel occupancy according to the physical resource amount of described greatest physical stock number and described current business channel occupancy, and with described physical resource surplus be defined as adjustment information be encapsulated into control signaling in, send to base station dispatcher.
Here, the unit that is provided with of TBS and physical resource corresponding relation comprises that agreement fixedly installs module and high-level signaling is provided with module.
As shown in Figure 2, a kind of retransmission selection scheduling method, this method may further comprise the steps:
Here, the descending scheduling control channel of configuration comprises: E-AGCH and HS-SCCH.Wherein, E-AGCH also can be called HSUPA descending scheduling control channel; HS-SCCH also can be called HSDPA descending scheduling control channel.
If decoded information is correct in the step 402 semi-static resource scheduling process, then UE stops to monitor and receiving the descending scheduling control channel of described configuration; If decoded information mistake in the semi-static resource scheduling process, then UE starts the descending scheduling control channel of monitoring and receiving described configuration, simultaneously, after base station dispatcher judges that according to UE priority, load condition and delay requirement needs are carried out re-transmission, start retransmission selection scheduling.
Method embodiment three is: adopt at uplink direction and dispatch based on the retransmission selection scheduling method of semi-static resource scheduling technology, reduce the control channel expense effectively, and further improve the solution of VOIP service quality.The up solution of dispatching based on the semi-static resource of the employing of method embodiment one, when in the semi-static resource scheduling process during decoded information mistake, base station dispatcher starts retransmission selection scheduling after judging that according to UE priority, load condition and delay requirement needs are carried out re-transmission.So, the realization flow of present embodiment may further comprise the steps:
Step 501, network dispose E-AGCH and the HS-SCCH that is used for VOIP data block retransfer scheduling for VOIP UE, and by link establishment process message E-AGCH and the HS-SCCH that disposes are sent to base station and UE.
Decode to the up VOIP data block that receives, and judge whether to be correctly decoded in step 502, base station; If be correctly decoded is that decoded information is correct, and then execution in step 503; Otherwise decoded in error is the decoded information mistake, and then execution in step 504.
Signaling is controlled by the descending VOIP of control channel carrying in step 503, base station, will feed back to UE at the decoded information ACK of up VOIP data block.After UE receives ACK, stop to monitor and receiving E-AGCH, finish current retransmission selection scheduling flow process.
Step 504, base station be by the descending VOIP control signaling of control channel carrying, will feed back to UE at the decoded information NACK of up VOIP data block after, UE starts to monitor and also receives E-AGCH.
Step 505, base station dispatcher judge whether to carry out according to UE priority, load condition and delay requirement and retransmit; Do not carry out re-transmission if base station dispatcher is judged, then finish current retransmission selection scheduling flow process; Otherwise base station dispatcher judges that execution retransmits execution in step 506.
Here, at UE priority, such as link establishment or reshuffle the stage, network is given base station dispatcher with the dispatching priority information configuration of UE in the system, and base station dispatcher is dispatched according to the UE of this dispatching priority information priority to high priority.At load condition, if certain constantly, the load of base station dispatcher is heavier, can't dispatch the up VOIP data block that retransmits, and then base station dispatcher is not just dispatched re-transmission.At delay requirement, if the professional delay requirement of certain of certain UE is higher, be not suitable for retransmitting, then base station dispatcher is not dispatched this business of this UE.
Step 506, base station dispatcher send the scheduling control information that retransmits up VOIP data block by E-AGCH, and carry the sign that will retransmit up VOIP data block to some extent in this scheduling control information.
Here, the sign that retransmits up VOIP data block also can be understood as the pointer information that retransmits up VOIP data block, is used for indicating the up VOIP data block that will retransmit with the form of pointer.
Step 507, UE judge according to the UE sign that listens on the E-AGCH whether UE self is scheduled.
Step 508, UE are according to default Traffic Channel and the timing relationship between the control channel, on the resource of scheduling control information appointment, according to the sign that will retransmit up VOIP data block of carrying in the scheduling control information, retransmit the up VOIP data block that the indicated needs of this sign are retransmitted.Simultaneously, UE indicates this to retransmit the sign of up VOIP data block in E-UCCH.
Decode to the up VOIP data block that retransmits in step 509, base station.
Here it is pointed out that the bearing mode that retransmits up VOIP data block sign is: in E-AGCH and E-UCCH, carry the sign that this retransmits up VOIP data block simultaneously.
Wherein, E-AGCH and E-UCCH are used.E-AGCH itself is a down direction, is used to carry the ascending resource information that base station assigns is given UE, PRRI as shown in table 2, CRRI and TRRI.And the function that detects up VOIP data block decoding error is positioned at the base station.After the base station detects up VOIP decoding block decoding error, need retransmit the sign of up VOIP data block by the E-AGCH carrying, and notify UE with the form of pointer, should retransmit which up VOIP data block in order to indication UE actually.E-UCCH itself is a up direction, after UE receives ascending resource information, up VOIP data block is sent to the base station by the ascending resource that E-AGCH distributes, and simultaneously, UE need retransmit the sign of up VOIP data block and send to the base station by the E-UCCH carrying.
Method embodiment four is: adopt in the down link direction and dispatch based on the retransmission selection scheduling method of semi-static resource scheduling technology, reduce the control channel expense effectively, and further improve the solution of VOIP service quality.The up solution of dispatching based on the semi-static resource of the employing of method embodiment two, when in the semi-static resource scheduling process during decoded information mistake, base station dispatcher starts retransmission selection scheduling after judging that according to UE priority, load condition and delay requirement needs are carried out re-transmission.So, the realization flow of present embodiment may further comprise the steps:
Step 601, network dispose E-AGCH and the HS-SCCH that is used for VOIP data block retransfer scheduling for VOIP UE, and by link establishment process message E-AGCH and the HS-SCCH that disposes are sent to base station and UE.
Step 602, UE decode to the descending VOIP data block that receives, and judge whether to be correctly decoded; If be correctly decoded is that decoded information is correct, and then execution in step 603; Otherwise decoded in error is the decoded information mistake, and then execution in step 604.
Step 603, UE control signaling by the up VOIP of control channel carrying, will feed back to the base station at the decoded information ACK of descending VOIP data block.UE stops the monitoring of HS-SCCH and reception, finishes current retransmission selection scheduling flow process.
Step 604, UE be by the up VOIP control signaling of control channel carrying, will feed back to the base station at the decoded information NACK of descending VOIP data block after, UE starts to monitor and also receives HS-SCCH.
Step 605, base station dispatcher judge whether that according to UE priority, load condition and delay requirement the needs execution retransmits; Do not carry out re-transmission if base station dispatcher is judged, then finish current retransmission selection scheduling flow process; Otherwise base station dispatcher judges that execution retransmits execution in step 606.
Here, at UE priority, such as link establishment or reshuffle the stage, network is given base station dispatcher with the dispatching priority information configuration of UE in the system, and base station dispatcher is dispatched according to the UE of this dispatching priority information priority to high priority.At load condition, if certain constantly, the load of base station dispatcher is heavier, can't dispatch the descending VOIP data block that retransmits, and then base station dispatcher is not just dispatched re-transmission.At delay requirement, if the professional delay requirement of certain of certain UE is higher, be not suitable for retransmitting, then base station dispatcher is not dispatched this business of this UE.
Step 606, base station dispatcher send the scheduling control information that retransmits descending VOIP data block by HS-SCCH, and carry the sign that will retransmit descending VOIP data block to some extent in this scheduling control information.
Here, the sign that retransmits descending VOIP data block also can be understood as the pointer information that retransmits descending VOIP data block, is used for indicating the descending VOIP data block that will retransmit with the form of pointer.
Step 607, base station send the descending VOIP data block that retransmits according to default Traffic Channel and the timing relationship between the control channel on Traffic Channel.
Step 608, UE judge according to the UE sign that listens on the HS-SCCH whether UE self is scheduled, and judge that according to the sign that retransmits descending VOIP data block which descending VOIP data block needs is retransmitted.
Step 609, UE are according to default Traffic Channel and the timing relationship between the control channel, and the descending VOIP data block that reception retransmits on the resource of scheduling control information appointment is also decoded.
Here it is pointed out that the bearing mode that retransmits descending VOIP data block sign is: the sign of only carrying the descending VOIP data block of described re-transmission in described HS-SCCH.
In sum, based on semi-static resource scheduling method of the present invention and retransmission selection scheduling method, carry up/descending VOIP control means of signaling at the present invention relates to control channel, because the major issue that carrying VOIP service needed solves is exactly the overhead issues of control channel, in order to guarantee the high request of VOIP, need the resource utilization of raising system simultaneously to QoS.Therefore the present invention adopts above-mentioned prior reserved resource and carries out adjusting in the process semi-static resource scheduling method of resource in business, the Traffic Channel that relates to adopts the mode of many UE time-sharing multiplex identical physical resources, the same mode that adopts many UE time-sharing multiplex of the control channel that relates to.
Below analyze at the control channel loaded information.
During carrying TBS information,, adopt the semi-static resource scheduling mode, promptly dynamically adjust the physical resource of use according to TBS information in order to solve the overhead issues of control channel.The TBS kind of VOIP business datum piece is less, such as being set to 4 kinds, adds that TBS=0 represents the voice quiet period, needs 5 kinds of TBS so altogether.During loading ACK/NACK feedback information,, adopt retransmission selection scheduling method for further guaranteeing the QoS mechanism of VOIP business, need in control channel, carry 1 bit feedback information.During carrying TPC/SS, the problem that must consider during the VOIP business is carried out is exactly up/down-going synchronous problem, and TPC/SS can solve up/down-going synchronous and power control problem well by the dedicated channel carrying, and associating TPC/SS coding has 6 kinds of forms.
Below analyze at the demand of control channel beared information.
The control channel that the present invention relates to is very similar to the E-HICH of present HSUPA, and it is 16 code channels that E-HICH takies a SF as non-scheduling channel, and behind the secondary spread spectrum, one has 80 sequence codes, and 80 sign indicating numbers have been divided into 20 groups, every group of 4 sequence codes.So, at link establishment phase, network distributes 4 sign indicating number sequences in 1 special-purpose code character for each non-scheduling UE, and minimum sign indicating number is used for loading ACK and NACK feedback information in this code character, transmission of other 3 sign indicating number sequence selection is in order to carrying associating TPC/SS order.And 3 sign indicating number sequences have three kinds of selection modes, and each yard sequence can send positive sign indicating number and two kinds of forms of radix-minus-one complement.Because the TPC/SS combined coding has forms different in 6, therefore use the mode that only sends 1 sign indicating number sequence in 3 sign indicating number sequences, can satisfy the demands.
At present, among the E-HICH code character can carry control channel up/TPC/SS and ACK/NACK information in the descending VOIP control signaling.From the backwards compatibility angle,, adopt here and distribute the method for two code characters for VOIP UE for fear of the distinctive control channel of the professional introducing of VOIP.Wherein, first code character carrying TPC/SS and ACK/NACK information, send mode is fully with present E-HICH mode; Another one code character carrying TBS information, the mode that adopts 4 sign indicating number sign indicating number sequence selection to send a sign indicating number sequence can be carried 5 kinds of TBS information fully.And 2 code characters can be simultaneously multiplexing by 4 UE from the time.In sum, because the channel architecture of existing E-HICH only is a down channel, therefore, the present invention further introduces the control channel that has the E-HICH type now at uplink direction, is used to carry up VOIP control signaling.
Below in the retransmission selection scheduling process, the bearing mode that retransmits pointer information is specifically addressed.It should be explicitly made clear at this point that this re-transmission pointer information promptly retransmits the pointer information of up/descending VOIP data block, just the sign of the up/descending VOIP data block of Chong Chuaning.
In the retransmission selection scheduling process, need be by the sign of control channel such as the up/descending VOIP data block of HS-SCCH, E-AGCH and E-UCCH carrying re-transmission.For the bearing mode that retransmits descending VOIP data block sign, in HS-SCCH carrying this retransmit descending VOIP data block sign and get final product.For the bearing mode that retransmits up VOIP data block sign, need in E-AGCH and E-UCCH, carry this simultaneously and retransmit descending VOIP data block sign.And the sign of the up/descending VOIP data block of re-transmission can be represented the difference of control channel delivery time and up/descending VOIP data block place TTI of being retransmitted.
Following counterweight is caught the sign of row/descending VOIP data block, and its indicating mode is given an example.
Consideration based on the backward compatibility aspect, under the situation that does not change present scheduling controlling channel format, for the bearing mode that retransmits descending VOIP data block sign, carry the sign that this retransmits descending VOIP data block by the information bit of TBS among present HS-SCCH and the E-UCCH.Because the TBS kind of VOIP business is less, TBS takies 6 bits among present HS-SCCH and the E-UCCH.Such as, use 2 bits just can represent the TBS of VOIP, the information bit of residue TBS can be used for carrying the sign that this retransmits descending VOIP data block among HS-SCCH and the E-UCCH so.For the bearing mode that retransmits up VOIP data block sign,, therefore can use the RDI field among the present E-AGCH to be used for carrying the sign that this retransmits up VOIP data block because the VOIP data block is less.
A kind of retransmission selection scheduling system, this system comprises: dispensing unit, transmitting element, judging unit.
Wherein, dispensing unit is used for configurating downlink scheduling controlling channel and sends to described transmitting element.Transmitting element is used for sending by the descending scheduling control channel of link establishment process message with described configuration.Judging unit after being used to receive the descending scheduling control channel of described configuration, is carried out the corresponding retransmission selection scheduling according to the judgement of decoded information in double static resource scheduling process and is handled.
Here, judging unit, be further used for judging that decoded information is correct after, UE stops to monitor and receiving the descending scheduling control channel of described configuration.
Here, judging unit, be further used for judging the decoded information mistake after, UE start to monitor and receives the descending scheduling control channel of described configuration; Simultaneously, after base station dispatcher judges that according to UE priority, load condition and delay requirement needs are carried out re-transmission, start retransmission selection scheduling.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (26)
1, a kind of semi-static resource scheduling method is characterized in that, this method may further comprise the steps:
The greatest physical stock number of A1, configuration service channel occupancy is provided with transmission block size TBS and described TBS corresponding physical resource;
B1, after selecting described TBS according to the networking telephone VOIP data block of current business channel bearing size, calculate the physical resource amount of current business channel occupancy according to described TBS and described TBS corresponding physical resource; Obtain the physical resource surplus of described current business channel occupancy according to described greatest physical stock number and described physical resource amount, and described physical resource surplus is defined as adjustment information is encapsulated in the control signaling, send to network equipment and dispatch.
2, method according to claim 1 is characterized in that, in the steps A 1, described TBS of setting and TBS corresponding physical resource comprise that agreement fixedly installs mode and high-level signaling set-up mode.
3, method according to claim 1 is characterized in that, in the steps A 1, also comprises after described TBS of setting and the TBS corresponding physical resource: will cover the physical resource corresponding to less TBS value corresponding to the physical resource of big TBS value; And in same time slot, described physical resource corresponding to less TBS value occupies the edge code channel resource of place time slot as far as possible.
4, method according to claim 1 is characterized in that, also comprises after described TBS of setting and the TBS corresponding physical resource: reconfigure described TBS and TBS corresponding physical resource.
According to each described method in the claim 1 to 4, it is characterized in that 5, at uplink direction, described step B1 is specially:
B111, user equipment (UE) select up TBS according to the up VOIP data block size that promptly will send and according to the corresponding relation of up TBS and physical resource, calculate the concrete physical resource information of required use, according to the timing relationship that sets in advance between Traffic Channel and the control channel, carry up VOIP control signaling by described control channel and will comprise that the TBS index information of up TBS and physical resource corresponding relation sends to the base station;
UE sends described up VOIP data block according to described timing relationship based on described concrete physical resource information;
B112, described base station receive described up VOIP control signaling and decoding earlier, according to the corresponding relation that obtains up TBS and physical resource in the described TBS index information, calculate the shared described concrete physical resource information of described up VOIP data block that next will receive;
The base station is defined as described concrete physical resource information the physical resource amount of current business channel occupancy, and calculate the physical resource surplus of current business channel occupancy in conjunction with the greatest physical stock number that the Traffic Channel of described configuration takies, described physical resource surplus is defined as adjustment information is encapsulated in the control signaling and sends to base station dispatcher;
The base station is according to described timing relationship, based on described up VOIP data block of described concrete physical resource message pick-up and decoding.
6, method according to claim 5 is characterized in that, among the step B112, described base station also comprises after receiving up VOIP data block and decoding:
Described base station is according to described timing relationship, and the descending VOIP control signaling of carrying by described control channel feeds back to UE with decoded information; When the base station detects up VOIP data block decoding error, start the retransmission selection scheduling process.
7, method according to claim 5 is characterized in that, described control channel further is: the control channel that strengthens the automatic request retransmission answering indication signal channel of up mixing E-HICH type.
According to each described method in the claim 1 to 4, it is characterized in that 8, in the down link direction, described step B1 is specially:
The descending VOIP data block size that be about to send is periodically judged in B121, described base station, if described descending VOIP data block size is zero, and execution in step B122 then; Otherwise, execution in step B123;
The greatest physical stock number that B122, base station take the Traffic Channel of described configuration is defined as described adjustment information and is encapsulated in the control signaling and sends to base station dispatcher; Finish current semi-static resource scheduling flow process;
Simultaneously, the base station is that 0 information sends to UE by descending VOIP control signaling with TBS; Perhaps, the base station does not send any TBS information; If UE detects less than the TBS information in the described descending VOIP control signaling, then UE judges that ensuing descending VOIP resource sends without any the VOIP data constantly; Finish current semi-static resource scheduling flow process;
Descending TBS is selected according to described descending VOIP data block size in B123, described base station, and according to the corresponding relation of described descending TBS and physical resource, the concrete physical resource information that calculating need take, according to the timing relationship that sets in advance between Traffic Channel and the control channel, the described descending VOIP control signaling of carrying by described control channel will comprise that the TBS index information of descending TBS and physical resource corresponding relation sends to UE;
Simultaneously, the base station is defined as the actual physical resource amount that takies of current business channel with described concrete physical resource information, and calculate the physical resource surplus of current business channel occupancy in conjunction with the greatest physical stock number that the Traffic Channel of described configuration takies, described physical resource surplus is defined as adjustment information is encapsulated in the control signaling and sends to described base station dispatcher; Finish current semi-static resource scheduling flow process.
9, method according to claim 8 is characterized in that, among the step B123, also comprises after described descending VOIP control signaling by the control channel carrying sends to UE with the TBS index information:
B124, described base station send described descending VOIP data block according to described timing relationship based on described concrete physical resource information;
B125, described UE receive described descending VOIP control signaling and decoding earlier, according to the corresponding relation that obtains descending TBS and physical resource in the described TBS index information, calculate the shared described concrete physical resource information of described descending VOIP data block that next will receive;
B126, UE are based on described descending VOIP data block of described concrete physical resource message pick-up and decoding.
10, method according to claim 9 is characterized in that, step B126 also comprises:
The up VOIP control signaling of described UE by control channel carrying feeds back to described base station with the decoded information of descending VOIP data block; When the base station detects descending VOIP data block decoding error by up VOIP control signaling, start the retransmission selection scheduling process.
11, method according to claim 9 is characterized in that, when delay variation took place, step B124 further was: described base station adopts data cached mode or scheduling mode to send the descending VOIP data block that delay variation takes place.
12, a kind of semi-static resource scheduling system, it is characterized in that this system comprises: Traffic Channel takies the computing unit that unit, current business channel occupancy physical resource amount are set of dispensing unit, TBS and the physical resource corresponding relation of greatest physical stock number; Wherein,
Traffic Channel takies the dispensing unit of greatest physical stock number, the greatest physical stock number that is used to its Traffic Channel of VOIP data block configuration of carrying to take;
TBS and physical resource corresponding relation the unit is set, be used to be provided with the corresponding relation of TBS and physical resource;
The computing unit of current business channel occupancy physical resource amount, be used for obtaining described greatest physical stock number, from the corresponding relation that the unit obtains TBS and physical resource that is provided with of described TBS and physical resource corresponding relation from the dispensing unit of described greatest physical stock number; Behind the VOIP data block size selection TBS according to the current business channel bearing, calculate the physical resource amount of current business channel occupancy according to the corresponding relation of described TBS and physical resource; Obtain the physical resource surplus of current business channel occupancy according to the physical resource amount of described greatest physical stock number and described current business channel occupancy, and with described physical resource surplus be defined as adjustment information be encapsulated into control signaling in, send to network equipment.
13, system according to claim 12 is characterized in that, the unit that is provided with of described TBS and physical resource corresponding relation comprises that agreement fixedly installs module and high-level signaling is provided with module.
14, a kind of retransmission selection scheduling method is characterized in that, this method may further comprise the steps:
A2, configuration are used for the descending scheduling control channel of VOIP data block retransfer scheduling, and send by the descending scheduling control channel of link establishment process message with described configuration;
If decoded information is correct in the B2 semi-static resource scheduling process, then UE stops to monitor and receiving the descending scheduling control channel of described configuration;
If decoded information mistake in the semi-static resource scheduling process, then UE starts the descending scheduling control channel of monitoring and receiving described configuration; Simultaneously, after base station dispatcher judges that according to UE priority, load condition and delay requirement needs are carried out re-transmission, start retransmission selection scheduling.
15, method according to claim 14 is characterized in that, the descending scheduling control channel of described configuration comprises: high speed uplink packet inserts descending scheduling control channel E-AGCH and high speed downlink packet inserts descending scheduling control channel HS-SCCH.
16, method according to claim 15 is characterized in that, at uplink direction, step B2 further is:
If the B211 decoded information is correct, then described base station is by the descending VOIP control signaling of control channel carrying, will feed back to UE at the ACK of up VOIP data block after, described UE stops to monitor and receiving described E-AGCH; If the decoded information mistake, then the base station is by described descending VOIP control signaling, will feed back to UE at the NACK of described up VOIP data block after, UE starts to monitor and also receives described E-AGCH.
17, method according to claim 16 is characterized in that, among the step B211, also comprises behind the described startup retransmission selection scheduling:
B212, base station dispatcher send the scheduling control information that retransmits up VOIP data block by described E-AGCH, and carry the sign that will retransmit up VOIP data block to some extent in the described scheduling control information.
18, method according to claim 17 is characterized in that, also comprises behind the step B212:
B213, described UE judge according to the UE sign that listens on the described E-AGCH whether UE self is scheduled;
B214, described UE are according to default Traffic Channel and the timing relationship between the described control channel, on the resource of described scheduling control information appointment, according to the sign of the up VOIP data block of described re-transmission of carrying in the scheduling control information, retransmit the up VOIP data block that the indicated needs of described sign are retransmitted; Simultaneously, UE indicates this to retransmit the sign of up VOIP data block in E-UCCH;
Decode to the up VOIP data block of described re-transmission in B215, base station.
According to claim 17 or 18 described methods, it is characterized in that 19, the bearing mode of the up VOIP data block sign of described re-transmission is: the sign of carrying the up VOIP data block of described re-transmission in described E-AGCH and described E-UCCH simultaneously.
20, method according to claim 15 is characterized in that, in the down link direction, step B2 further is:
If the B221 decoded information is correct, then described base station is by the up VOIP control signaling of control channel carrying, will feed back to UE at the ACK of descending VOIP data block after, described UE stops to monitor and receiving described HS-SCCH; If the decoded information mistake, then the base station is by described up VOIP control signaling, will feed back to the base station at the NACK of described descending VOIP data block after, UE starts to monitor and also receives described HS-SCCH.
21, method according to claim 20 is characterized in that, among the step B221, also comprises behind the described startup retransmission selection scheduling:
B222, base station dispatcher send the scheduling control information that retransmits descending VOIP data block by described HS-SCCH, and carry the sign that will retransmit descending VOIP data block to some extent in the described scheduling control information.
22, method according to claim 21 is characterized in that, also comprises behind the step B222:
B223, described base station send the descending VOIP data block of described re-transmission according to default Traffic Channel and the timing relationship between the described control channel on described Traffic Channel;
B224, described UE judge according to the UE sign that listens on the HS-SCCH whether UE self is scheduled, and judge the descending VOIP data block that needs are retransmitted according to the sign of the descending VOIP data block of described re-transmission;
B225, described UE be according to described timing relationship, receives the descending VOIP data block of described re-transmission and decode on the resource of described scheduling control information appointment.
According to claim 21 or 22 described methods, it is characterized in that 23, the bearing mode of the descending VOIP data block sign of described re-transmission is: the sign of the descending VOIP data block of the described re-transmission of carrying in described HS-SCCH.
24, a kind of retransmission selection scheduling system is characterized in that this system comprises: dispensing unit, transmitting element, judging unit; Wherein,
Dispensing unit is used for configurating downlink scheduling controlling channel and sends to described transmitting element;
Transmitting element is used for sending by the descending scheduling control channel of link establishment process message with described configuration;
Judging unit after being used to receive the descending scheduling control channel of described configuration, is carried out the corresponding retransmission selection scheduling according to the judgement of decoded information in double static resource scheduling process and is handled.
25, system according to claim 24 is characterized in that, described judging unit, be further used for judging that decoded information is correct after, UE stops to monitor and receiving the descending scheduling control channel of described configuration.
26, system according to claim 24 is characterized in that, described judging unit, be further used for judging the decoded information mistake after, UE start to monitor and receives the descending scheduling control channel of described configuration; Simultaneously, after base station dispatcher judges that according to UE priority, load condition and delay requirement needs are carried out re-transmission, start retransmission selection scheduling.
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