CN101499887B - 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; In R5 and R6, introduced high speed downlink packet access (HSDPA) technology and high speed uplink packet respectively and inserted (HSUPA) technology, 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 through IP network, that is to say; Current development trend is: in the HSPA evolution system, realize the professional support to VOIP.
Below, set forth to existing HSDPA technology, existing HSUPA technology and existing VOIP business features respectively.
To the HSDPA technology, in order to satisfy the growing demand to the HRPD 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, High Speed 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, accomplishes the transmission of high-speed down data, is mapped on the HS-PDSCH.A plurality of subscriber equipmenies (UE) are shared HS-DSCH through 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, through the cooperation of these two control channels, accomplish 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.
Below table 1 is a HS-SCCH institute loaded information; As shown in table 1, the control information that HS-SCCH carries 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, on HS-SCCH, send earlier Downlink Control Information through base station scheduling; 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 the descending HSDPA data on the HS-PDSCH; At last, utilize corresponding HS-SICH channel feedback ACK/NACK message to give the base station.
To the HSUPA technology,, satisfy such as using the professional UE of game class in order to improve up peak rate; Especially when using the professional UE of game class more for a long time to the requirement of upstream rate, therefore, in the agreement of R6/R7 version; For 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: enhancing dedicated channel (E-DCH), enhanced uplink control channel (E-UCCH), enhanced uplink physical channel (E-PUCH), enhanced uplink RACH (E-RUCCH), enhanced uplink are mixed automatic request retransmission answering indication signal channel (E-HICH), the absolute access grant channel of enhanced uplink (E-AGCH).
Here, E-DCH is a transmission channel, and other channels all are physical channels.Wherein, E-DCH also can be called the enhanced uplink transmission channel of HSUPA, is used to carry the high speed uplink business datum and carries 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 to carry SI, can regain uplink synchronous.Here, this SI comprises the identification information of the relevant information of Serving cell and adjacent sub-district information on path loss, UE available launch power, highest priority logical channel that buffer memory has data occupancy, the occupied information and the total buffer memory occupied information of UE of 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 that carries 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, carry the indication information of 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, carry information such as SS for E-PUCH, TPC, shown in below 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 with the mode of bit mapping is UE distributed time slot resource |
| RDI | Whether the RDI territory takies 3 bit information positions, and this territory possibly 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 up HSUPA data be sent in the base station, 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; After UE received also correct this HSUPA control information of deciphering, according to timing relationship through certain hour at interval, the up HSUPA data that UE transmission E-DCH is mapped on the E-PUCH were given 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.
To 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, following to the analysis of VOIP business features, the voice activation phase that VOIP is professional, 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 10-24 byte that VOIP is professional, 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.
Can know through above-mentioned analysis,, when the VOIP that through HSPA channel bearing flank speed is 19.6kbps is professional, can cause the bigger problem of its control channel expense because the VOIP business requires than higher real-time.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: be directed against the solution that the FDD system supports the VOIP business and reduces the control channel expense.The FDD system is when supporting that VOIP is professional; In order to reduce the control channel expense, taked a series of optimized Measures, the optimized Measures professional with descending VOIP is 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 through the blind Detecting mode under the situation of not receiving HS-SCCH; On the other hand, send control information through 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 the control information of extra transmission to data channel; Such as not needing extra transmission transformat indication information; UE decodes to data channel according to predefined form, and predefined form can also can pass through the agreement fixed configurations through the high-level signaling configuration of link establishment phase.
With reference to the above-mentioned solution that is directed against FDD system support VOIP business and reduces the control channel expense; If in the TDD system; UE adopts the blind Detecting mode to receive the VOIP packet equally, and it is 16 code channel resource that the VOIP packet that transmits one 49 byte so will need eight SF in the 5ms TTI, and UE need carry out blind Detecting to the data of these eight code channel resources all the time; Like this, can cause UE power consumption to increase.It is thus clear that in the TDD system, directly use the solution of existing FDD system also improper.
In addition, to the characteristics and the professional demand of VOIP of TDD system, the correlation technique that adopts in the existing TDD system also is unfavorable for the professional support to VOIP.
For instance, to 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 professional packet characteristics of VOIP, 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.It is thus clear that 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 professional scheme of the therefore existing VOIP of carrying 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 the QoS quality for guaranteeing that VOIP is professional should guarantee from the link-quality aspect.It is thus clear that when through 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 it is professional to carry VOIP through dedicated channel (DCH), then, distributes to the private resource of UE and will waste greatly in the professional voice quiet period of VOIP.Therefore, also improper through 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 to the characteristics and the professional demand of VOIP of TDD system, the correlation technique that adopts in the existing TDD system also is unfavorable for the professional support to VOIP.To 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 VOIP of support professional semi-static resource scheduling method, 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 VOIP of support professional semi-static resource scheduling system, 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 VOIP of support professional retransmission selection scheduling method, when realizing the VOIP business support, has reduced the expense of control channel effectively.
A purpose more of the present invention is to provide a kind of VOIP of support professional retransmission selection scheduling system, 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 said TBS corresponding physical resource;
B1, after selecting said 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 said TBS and said TBS corresponding physical resource; Obtain the physical resource surplus of said current business channel occupancy according to said greatest physical stock number and said physical resource amount, and said physical resource surplus is confirmed as adjustment information be encapsulated in the control signaling, send to network equipment and dispatch.
Wherein, in the steps A 1, said 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 said 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, said 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 said TBS of setting and the TBS corresponding physical resource: reconfigure said TBS and TBS corresponding physical resource.
Wherein, at uplink direction, said 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 is provided with in advance between Traffic Channel and the control channel, carry up VOIP control signaling through said 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 said up VOIP data block according to said timing relationship based on said concrete physical resource information;
B112, said base station receive said up VOIP control signaling and decoding earlier; According to the corresponding relation that obtains up TBS and physical resource in the said TBS index information, calculate the shared said concrete physical resource information of said up VOIP data block that next will receive;
Said concrete physical resource information is confirmed as the physical resource amount of current business channel occupancy in the base station; And the greatest physical stock number that takies of the Traffic Channel that combines said configuration calculates the physical resource surplus of current business channel occupancy, said physical resource surplus confirmed as adjustment information be encapsulated in the control signaling and send to base station dispatcher;
The base station is according to said timing relationship, based on said up VOIP data block of said concrete physical resource message pick-up and decoding.
Wherein, among the step B112, said base station also comprises after receiving up VOIP data block and decoding:
Said base station is according to said timing relationship, and the descending VOIP control signaling of carrying through said 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, said control channel further is: enhanced uplink is mixed the control channel of automatic request retransmission answering indication signal channel E-HICH type.
Wherein, in the down link direction, said step B1 is specially:
The descending VOIP data block size of be about to sending is periodically judged in B121, said base station, if said 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 said configuration is confirmed as said 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 through descending VOIP control signaling with TBS; Perhaps, any TBS information is not sent in the base station; If UE detects less than the TBS information in the said descending VOIP control signaling, then UE judges that ensuing descending VOIP resource has no the VOIP data to send constantly; Finish current semi-static resource scheduling flow process;
Descending TBS is selected according to said descending VOIP data block size in B123, said base station; And according to the corresponding relation of said descending TBS and physical resource; The concrete physical resource information that calculating need take; According to the timing relationship that is provided with in advance between Traffic Channel and the control channel, the said descending VOIP control signaling of carrying through said control channel will comprise that the TBS index information of descending TBS and physical resource corresponding relation sends to UE;
Simultaneously; The actual physical resource amount that takies of current business channel is confirmed as with said concrete physical resource information in the base station; And the greatest physical stock number that takies of the Traffic Channel that combines said configuration calculates the physical resource surplus of current business channel occupancy, said physical resource surplus confirmed as adjustment information be encapsulated in the control signaling and send to said 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, said descending VOIP control signaling of carrying through control channel also comprises:
B124, said base station are sent said descending VOIP data block according to said timing relationship based on said concrete physical resource information;
B125, said UE receive said descending VOIP control signaling and decoding earlier; According to the corresponding relation that obtains descending TBS and physical resource in the said TBS index information, calculate the shared said concrete physical resource information of said descending VOIP data block that next will receive;
B126, UE are based on said descending VOIP data block of said concrete physical resource message pick-up and decoding.
Wherein, step B126 also comprises:
The up VOIP control signaling that said UE carries through control channel feeds back to said base station with the decoded information of descending VOIP data block; When the base station detects descending VOIP data block decoding error through up VOIP control signaling, start the retransmission selection scheduling process.
Wherein, when delay variation took place, step B124 further was: said 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, is used to the greatest physical stock number that its Traffic Channel of VOIP data block configuration of carrying takies;
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 said greatest physical stock number, from the corresponding relation that the unit obtains TBS and physical resource that is provided with of said TBS and physical resource corresponding relation from the dispensing unit of said 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 said TBS and physical resource; Obtain the physical resource surplus of current business channel occupancy according to the physical resource amount of said greatest physical stock number and said current business channel occupancy; And with said physical resource surplus confirm as adjustment information be encapsulated into control signaling in, send to network equipment.
Wherein, the unit that is provided with of said 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 through the descending scheduling control channel of link establishment process message with said 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 said configuration;
If decoded information mistake in the semi-static resource scheduling process, then UE starts the descending scheduling control channel of monitoring and receiving said configuration; Simultaneously, after base station dispatcher is carried out re-transmission according to UE priority, load condition and delay requirement judgement needs, start retransmission selection scheduling.
Wherein, the descending scheduling control channel of said 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 said base station is through the descending VOIP control signaling that control channel carries, will feed back to UE to the ACK of up VOIP data block after, said UE stops monitoring and receives said E-AGCH; If the decoded information mistake, then the base station is through said descending VOIP control signaling, will feed back to UE to the NACK of said up VOIP data block after, UE starts monitoring and also receives said E-AGCH.
Wherein, among the step B211, also comprise behind the said startup retransmission selection scheduling:
B212, base station dispatcher send the scheduling control information that retransmits up VOIP data block through said E-AGCH, and carry the sign that will retransmit up VOIP data block to some extent in the said scheduling control information.
Wherein, also comprise behind the step B212:
B213, said UE judge according to the UE sign that listens on the said E-AGCH whether UE self is scheduled;
B214, said UE are according to preset Traffic Channel and the timing relationship between the said control channel; On the resource of said scheduling control information appointment; According to the sign of the up VOIP data block of said re-transmission of carrying in the scheduling control information, retransmit the up VOIP data block that the indicated needs of said 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 said re-transmission in B215, base station.
Wherein, the bearing mode of the up VOIP data block sign of said re-transmission is: the sign of in said E-AGCH and said E-UCCH, carrying the up VOIP data block of said re-transmission simultaneously.
Wherein, in the down link direction, step B2 further is:
If the B221 decoded information is correct, then said base station is through the up VOIP control signaling that control channel carries, will feed back to UE to the ACK of descending VOIP data block after, said UE stops monitoring and receives said HS-SCCH; If the decoded information mistake, then the base station is through said up VOIP control signaling, will feed back to the base station to the NACK of said descending VOIP data block after, UE starts monitoring and also receives said HS-SCCH.
Wherein, among the step B221, also comprise behind the said startup retransmission selection scheduling:
B222, base station dispatcher send the scheduling control information that retransmits descending VOIP data block through said HS-SCCH, and carry the sign that will retransmit descending VOIP data block to some extent in the said scheduling control information.
Wherein, also comprise behind the step B222:
The descending VOIP data block of said re-transmission is sent according to preset Traffic Channel and the timing relationship between the said control channel in B223, said base station on said Traffic Channel;
B224, said UE judge according to the UE sign that listens on the HS-SCCH whether UE self is scheduled, and the descending VOIP data block that is retransmitted according to the sign judgement needs of the descending VOIP data block of said re-transmission;
B225, said UE be according to said timing relationship, on the resource of said scheduling control information appointment, receives the descending VOIP data block of said re-transmission and decode.
Wherein, the bearing mode of the descending VOIP data block sign of said re-transmission is: the sign of in said HS-SCCH, carrying the descending VOIP data block of said re-transmission.
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 said transmitting element;
Transmitting element is used for sending through the descending scheduling control channel of link establishment process message with said configuration;
Judging unit after being used to receive the descending scheduling control channel of said 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, said 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 said configuration.
Wherein, said judging unit, be further used for judging the decoded information mistake after, UE start to monitor and receives the descending scheduling control channel of said configuration; Simultaneously, after base station dispatcher is carried out re-transmission according to UE priority, load condition and delay requirement judgement needs, start retransmission selection scheduling.
The present invention adopts semi-static resource scheduling method and supports VOIP professional 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 N continuous sub-frame 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 confirmed as adjustment information be 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 through the control signaling.
In sum, adopt the present invention, reduced the expense of control channel effectively guaranteeing that the code channel resource that farthest VOIP voice quiet period need not to take is given base station dispatcher efficiently and used under the professional resource requirement prerequisite of VOIP.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 sketch map of semi-static resource scheduling method principle of the present invention;
Fig. 2 is the realization flow sketch map 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 support VOIP professional to retransmitting to select to dispatch 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 object of the invention, technical scheme and advantage clearer, below lift embodiment and with reference to accompanying drawing, to further explain of the present invention.
As shown in Figure 1, a kind of semi-static resource scheduling method, this method may further comprise the steps:
Here, the setting principle that is provided with in advance with TBS corresponding physical resource is: at first, according to the characteristic 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.
To 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 that this physical resource is corresponding can be the 0th and the 1st code channel in 16 code channels for SF in the time slot.
Here, setting comprises dual mode with TBS corresponding physical resource in advance: 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 through notice of settlement, every kind of corresponding concrete physical resource information of TBS is notified to base station/UE through high-level signaling.Here, to 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.
Here, network equipment can be base station dispatcher.
And then; Produce resource fragmentation for fear of semi-static resource scheduling method; Be optimized being provided with TBS corresponding physical resource in advance in the above-mentioned steps 101, in the step 101, the TBS that is used for the transmitting voip data block on the Traffic Channel be set in advance so; 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 two eight discontinuous words of code channel resource that UE is idle 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 basically 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 has no the VOIP data to send.
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 to carry, and TBS3 is that the VOIP data block of 288 bits needs six BRU to carry, and TBS4 is that the VOIP data block of 392 bits needs eight BRU to carry.
Carry the situation of traditional voice service for traditional DPCH; The voice of AMR (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 basically.As shown in table 3, listed the professional code check of VOIP under the typical plan of establishment in the table 3 and contrasted with traditional voice service.
| VOIP | The TBS index | The TBS size | BRU quantity | Code check | Remarks |
| ?0 | ?0 | ?0 | The voice quiet period, free of data bag state | ||
| ?1 | ?96 | ?2 | ?0.54?54 | ||
| ?2 | ?192 | ?4 | ?0.54?54 | ||
| ?3 | ?288 | ?6 | ?0.54?54 | ||
| ?5 | ?392 | ?8 | ?0.55?68 |
| Tradition DPCH voice-bearer | 78 | 2 | 0.46 | Consider that physical channel carries TPC/SS and TFCI information |
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.From table 4, can know, cover the 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 is by the BRU at two ends.
| VOIP | The TBS index | The TBS size | BRU quantity | When being assigned with the first eight BRU resource of certain time slot | When being assigned with the first eight BRU resource of certain time slot |
| 0 | 0 | ?0 | Do not have | Do not have | |
| 1 | 96 | ?2 | 0，1 | 15，14 | |
| 2 | 192 | ?4 | 0，1，2，3 | 15，14，13，12 | |
| 3 | 288 | ?6 | 0，1，2，3， 4，5 | 15，14，13，12， 11，10 | |
| 4 | 392 | ?8 | 0，1，2，3， 4，5，6，7 | 15，14，13，12， 11，10，9，8 |
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 that VOIP is professional so, in the step 101, the TBS that is used for the transmitting voip data block on the Traffic Channel be set in advance, 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.Likewise, 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 is set with its corresponding physical resource, also need 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, traditional AMR12.2kbps speech business and the professional capacity of VOIP are compared and can know, 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 does not receive 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 are equivalent to each VOIP UE and take two BRU in the 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 than the capacity of traditional voice service basically.
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 that carries of control channel.Can fixedly install mode and the high-level signaling set-up mode is provided with the up TBS that is used to transmit up VOIP data block on the Traffic Channel in advance through agreement, and with this up TBS corresponding physical resource.And, can fixedly install mode and the high-level signaling set-up mode is provided with the timing relationship between Traffic Channel and the control channel in advance through agreement.
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 is provided with in advance between Traffic Channel and the control channel, the up VOIP control signaling of carrying through 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.Then calculating and obtaining the corresponding concrete physical resource information of this physical resource to be the 0th and the 1st code channel in 16 code channels for SF in the time slot.
Here, to timing relationship, such as for UE, control channel always sends to the base station than Traffic Channel in advance.
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 is provided with 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 is provided with in advance between Traffic Channel and the control channel, control channel always sends to the base station than Traffic Channel in advance, therefore; The base station receives the up VOIP control signaling in the step 202 earlier, after receive the 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 confirmed as the actual physical resource amount that takies of current business channel, and combines to distribute to the physical resource surplus that greatest physical stock number that the Traffic Channel of this UE takies is calculated the current business channel occupancy.If the physical resource surplus is arranged, then this physical resource surplus is confirmed as adjustment information and be encapsulated into control and send 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 is provided with 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.
After step 207, the completion decoding, the base station is according to the timing relationship that is provided with in advance between Traffic Channel and the control channel, and the descending VOIP that carries through control channel controls the decoded information of signaling with previous up VOIP data block, feeds back to UE 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 that carries of control channel.Can fixedly install mode and the high-level signaling set-up mode is provided with the descending TBS that is used to transmit descending VOIP data block on the Traffic Channel in advance through agreement, and with this descending TBS corresponding physical resource.And, can fixedly install mode and the high-level signaling set-up mode is provided with the timing relationship between Traffic Channel and the control channel in advance through agreement.
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; When just descending VOIP was in the voice quiet period and has no the VOIP data to send, 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 confirm as said 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 other UE or other professional scheduling.Finish current semi-static resource scheduling flow process.
Here, execution in step 303 time, the base station is that 0 information sends to UE through descending VOIP control signaling with TBS; Perhaps, any TBS information is not sent in the base station, representes 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 has no the VOIP data to send 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 to have no the situation of VOIP data transmission.
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 is provided with in advance between Traffic Channel and the control channel, the descending VOIP control signaling of carrying through 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 confirmed as the actual physical resource amount that takies of current business channel; And the greatest physical stock number that takies of the Traffic Channel that combines to distribute to this UE calculates the physical resource surplus of current business channel occupancy, this physical resource surplus confirmed as adjustment information be encapsulated in the control signaling and send 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 of carrying through control channel also comprises:
Step 305, base station are sent descending VOIP data block according to the timing relationship that is provided with 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.
To 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 through the speech business of IP transmission network transmitting voip is the delay variation 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, and 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 is sent 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.
To 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 preset time of this timer is T=n * 20ms.Surpass n * 20ms and just send data.If the number of finding to surpass preset time of timer or the descending VOIP data block of buffer memory is more than or equal to n; No matter follow-up whether then have new descending VOIP data block to reach; Adopt the principle of FIFO 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.
To adopting scheduling mode, the predefined delivery time in base station is every at a distance from 20ms transmission data.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 need send once the base station descending VOIP data block, has 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.Said 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, be used for the form indication of pointer the descending VOIP data block of generation delay variation that will send.The concrete bearing mode of said 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, the sign of the up/descending VOIP data block that just retransmits.
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 is provided with in advance between Traffic Channel and the control channel, control channel always sends to UE than Traffic Channel in advance, therefore; UE receives the descending VOIP control signaling in the step 304 earlier, after receive the 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.
After step 308, the completion decoding, the up VOIP that UE carries through control channel controls the decoded information of signaling with previous descending VOIP data block, feeds back to the base station 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 through 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, is used to the greatest physical stock number that its Traffic Channel of VOIP data block configuration of carrying takies.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 said greatest physical stock number, from the corresponding relation that the unit obtains TBS and physical resource that is provided with of said TBS and physical resource corresponding relation from the dispensing unit of said 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 said TBS and physical resource; Obtain the physical resource surplus of current business channel occupancy according to the physical resource amount of said greatest physical stock number and said current business channel occupancy; And with said physical resource surplus confirm 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 said configuration; If decoded information mistake in the semi-static resource scheduling process; Then UE starts the descending scheduling control channel of monitoring and receiving said configuration; Simultaneously, after base station dispatcher is carried out re-transmission according to UE priority, load condition and delay requirement judgement needs, start retransmission selection scheduling.
Method embodiment three is: adopt based on the retransmission selection scheduling method of semi-static resource scheduling technology at uplink direction and dispatch, 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 carrying out re-transmission according to UE priority, load condition and delay requirement judgement needs.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 through link establishment process message the E-AGCH and the HS-SCCH that dispose are sent to base station and UE.
Decode to the up VOIP data block that receives, and judge whether correct decoding in step 502, base station; If correct decoding is that decoded information is correct, then execution in step 503; Otherwise decoded in error is the decoded information mistake, and then execution in step 504.
Step 503, base station will feed back to UE to the decoded information ACK of up VOIP data block through the descending VOIP control signaling that control channel carries.After UE receives ACK, stop to monitor and receiving E-AGCH, finish current retransmission selection scheduling flow process.
Step 504, base station be through the descending VOIP control signaling that control channel carries, will feed back to UE to the decoded information NACK of up VOIP data block after, UE starts and monitors also reception 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, to UE priority, perhaps reshuffle the stage such as link establishment, 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.To 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.To 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 through 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 is appreciated that to attach most importance to catches the pointer information of capable VOIP data block, be used for the indication of the form of pointer the up VOIP data block that will retransmit.
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 preset Traffic Channel and the timing relationship between the control channel; On the resource of scheduling control information appointment; According to carry in the scheduling control information to retransmit the sign of up VOIP data block, 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 to carry the sign that retransmits up VOIP data block, and notify UE with the form of pointer through E-AGCH, 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 through the ascending resource that E-AGCH distributes, and simultaneously, UE need carry the sign that retransmits up VOIP data block and send to the base station through E-UCCH.
Method embodiment four is: adopt based on the retransmission selection scheduling method of semi-static resource scheduling technology in the down link direction and dispatch, 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 carrying out re-transmission according to UE priority, load condition and delay requirement judgement needs.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 through link establishment process message the E-AGCH and the HS-SCCH that dispose are sent to base station and UE.
Step 602, UE decode to the descending VOIP data block that receives, and judge whether correct decoding; If correct decoding is that decoded information is correct, then execution in step 603; Otherwise decoded in error is the decoded information mistake, and then execution in step 604.
Step 603, UE will feed back to the base station to the decoded information ACK of descending VOIP data block through the up VOIP control signaling that control channel carries.UE stops the monitoring of HS-SCCH and reception, finishes current retransmission selection scheduling flow process.
Step 604, UE be through the up VOIP control signaling that control channel carries, will feed back to the base station to the decoded information NACK of descending VOIP data block after, UE starts and monitors also reception 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, to UE priority, perhaps reshuffle the stage such as link establishment, 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.To 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.To 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 through 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 is appreciated that to attach most importance to and descends the pointer information of capable VOIP data block, be used for the form indication of pointer the descending VOIP data block that will retransmit.
The descending VOIP data block that retransmits is sent according to preset Traffic Channel and the timing relationship between the control channel in step 607, base station 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 preset 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 in said HS-SCCH, carrying the descending VOIP data block of said re-transmission.
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 to the present invention relates to control channel; Because carrying the major issue of VOIP service needed solution is exactly the overhead issues of control channel, simultaneously in order to guarantee the high request of VOIP to QoS, needs the resource utilization of raising system.Therefore the present invention adopts above-mentioned prior reserved resource and carries out the semi-static resource scheduling method of adjustment resource in the process 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 to the control channel loaded information.
When 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 representes the voice quiet period, needs 5 kinds of TBS so altogether.During loading ACK/NACK feedback information, be the QoS mechanism of guaranteeing that further VOIP is professional, adopt retransmission selection scheduling method, need in control channel, carry 1 bit feedback information.When carrying TPC/SS, the problem that must consider during the VOIP business is carried out is exactly up/down-going synchronous problem, carries TPC/SS through dedicated channel and can solve up/down-going synchronous and power control problem well, and associating TPC/SS coding has 6 kinds of forms.
Below analyze to the demand of control channel beared information.
The control channel that the present invention relates to is similar to the E-HICH of present HSUPA very much, 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 carry associating TPC/SS order.And 3 sign indicating number sequences have three kinds of selection modes, and each yard sequence can be sent 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 of only sending 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 is carried TPC/SS and ACK/NACK information, and send mode is fully with present E-HICH mode; The another one code character is carried TBS information, and 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 is merely 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 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, the sign of the up/descending VOIP data block that just retransmits.
In the retransmission selection scheduling process, need to carry such as HS-SCCH, E-AGCH and E-UCCH the sign of the up/descending VOIP data block that retransmits through control channel.For the bearing mode that retransmits descending VOIP data block sign, in HS-SCCH, carry and the descending VOIP data block sign of re-transmission to get final product.For the bearing mode that retransmits up VOIP data block sign, need in E-AGCH and E-UCCH, carry simultaneously and should retransmit descending VOIP data block sign.And the sign of the up/descending VOIP data block of re-transmission can represent that control channel delivery time and the up/descending VOIP data block that is retransmitted belong to the difference of TTI.
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 this through the information bit of TBS among present HS-SCCH and the E-UCCH and retransmit the sign of descending VOIP data block.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 said transmitting element.Transmitting element is used for sending through the descending scheduling control channel of link establishment process message with said configuration.Judging unit after being used to receive the descending scheduling control channel of said 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 said 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 said configuration; Simultaneously, after base station dispatcher is carried out re-transmission according to UE priority, load condition and delay requirement judgement needs, start retransmission selection scheduling.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.
Claims (26)
1. a 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 said TBS corresponding physical resource;
B1, after selecting said 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 said TBS and said TBS corresponding physical resource; Obtain the physical resource surplus of said current business channel occupancy according to said greatest physical stock number and said physical resource amount, and said physical resource surplus is confirmed as adjustment information be 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, said 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 said 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, said 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 said TBS of setting and the TBS corresponding physical resource: reconfigure said TBS and TBS corresponding physical resource.
5. according to each described method in the claim 1 to 4, it is characterized in that at uplink direction, said 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 is provided with in advance between Traffic Channel and the control channel, carry up VOIP control signaling through said 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 said up VOIP data block according to said timing relationship based on said concrete physical resource information;
B112, said base station receive said up VOIP control signaling and decoding earlier; According to the corresponding relation that obtains up TBS and physical resource in the said TBS index information, calculate the shared said concrete physical resource information of said up VOIP data block that next will receive;
Said concrete physical resource information is confirmed as the physical resource amount of current business channel occupancy in the base station; And the greatest physical stock number that takies of the Traffic Channel that combines said configuration calculates the physical resource surplus of current business channel occupancy, said physical resource surplus confirmed as adjustment information be encapsulated in the control signaling and send to base station dispatcher;
The base station is according to said timing relationship, based on said up VOIP data block of said concrete physical resource message pick-up and decoding.
6. method according to claim 5 is characterized in that, among the step B112, said base station also comprises after receiving up VOIP data block and decoding:
Said base station is according to said timing relationship, and the descending VOIP control signaling of carrying through said 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, said control channel further is: enhanced uplink is mixed the control channel of automatic request retransmission answering indication signal channel E-HICH type.
8. according to each described method in the claim 1 to 4, it is characterized in that in the down link direction, said step B1 is specially:
The descending VOIP data block size of be about to sending is periodically judged in B121, said base station, if said 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 said configuration is confirmed as said 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 through descending VOIP control signaling with TBS; Perhaps, any TBS information is not sent in the base station; If UE detects less than the TBS information in the said descending VOIP control signaling, then UE judges that ensuing descending VOIP resource has no the VOIP data to send constantly; Finish current semi-static resource scheduling flow process;
Descending TBS is selected according to said descending VOIP data block size in B123, said base station; And according to the corresponding relation of said descending TBS and physical resource; The concrete physical resource information that calculating need take; According to the timing relationship that is provided with in advance between Traffic Channel and the control channel, the said descending VOIP control signaling of carrying through said control channel will comprise that the TBS index information of descending TBS and physical resource corresponding relation sends to UE;
Simultaneously; The actual physical resource amount that takies of current business channel is confirmed as with said concrete physical resource information in the base station; And the greatest physical stock number that takies of the Traffic Channel that combines said configuration calculates the physical resource surplus of current business channel occupancy, said physical resource surplus confirmed as adjustment information be encapsulated in the control signaling and send to said 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 said descending VOIP control signaling of carrying through control channel sends to UE with the TBS index information:
B124, said base station are sent said descending VOIP data block according to said timing relationship based on said concrete physical resource information;
B125, said UE receive said descending VOIP control signaling and decoding earlier; According to the corresponding relation that obtains descending TBS and physical resource in the said TBS index information, calculate the shared said concrete physical resource information of said descending VOIP data block that next will receive;
B126, UE are based on said descending VOIP data block of said 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 that said UE carries through control channel feeds back to said base station with the decoded information of descending VOIP data block; When the base station detects descending VOIP data block decoding error through up VOIP control signaling, start the retransmission selection scheduling process.
When the decoded information mistake, base station initiated retransmission selection scheduling process.
11. method according to claim 9 is characterized in that, when delay variation took place, step B124 further was: said base station adopts data cached mode or scheduling mode to send the descending VOIP data block that delay variation takes place.
12. a semi-static resource scheduling system 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, is used to the greatest physical stock number that its Traffic Channel of VOIP data block configuration of carrying takies;
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 said greatest physical stock number, from the corresponding relation that the unit obtains TBS and physical resource that is provided with of said TBS and physical resource corresponding relation from the dispensing unit of said 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 said TBS and physical resource; Obtain the physical resource surplus of current business channel occupancy according to the physical resource amount of said greatest physical stock number and said current business channel occupancy; And with said physical resource surplus confirm 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 said TBS and physical resource corresponding relation comprises that agreement fixedly installs module and high-level signaling is provided with module.
14. a 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 through the descending scheduling control channel of link establishment process message with said configuration;
If decoded information is correct in the B2 semi-static resource scheduling process according to claim 1, then UE stops to monitor and receiving the descending scheduling control channel of said configuration;
If decoded information mistake in the semi-static resource scheduling process, then UE starts the descending scheduling control channel of monitoring and receiving said configuration; Simultaneously, after base station dispatcher is carried out re-transmission according to UE priority, load condition and delay requirement judgement needs, start retransmission selection scheduling.
15. method according to claim 14 is characterized in that, the descending scheduling control channel of said 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 said base station is through the descending VOIP control signaling that control channel carries, will feed back to UE to the ACK of up VOIP data block after, said UE stops monitoring and receives said E-AGCH; If the decoded information mistake, then the base station is through said descending VOIP control signaling, will feed back to UE to the NACK of said up VOIP data block after, UE starts monitoring and also receives said E-AGCH.
17. method according to claim 16 is characterized in that, among the step B211, also comprises behind the said startup retransmission selection scheduling:
B212, base station dispatcher send the scheduling control information that retransmits up VOIP data block through said E-AGCH, and carry the sign that will retransmit up VOIP data block to some extent in the said scheduling control information.
18. method according to claim 17 is characterized in that, also comprises behind the step B212:
B213, said UE judge according to the UE sign that listens on the said E-AGCH whether UE self is scheduled;
B214, said UE are according to preset Traffic Channel and the timing relationship between the said control channel; On the resource of said scheduling control information appointment; According to the sign of the up VOIP data block of said re-transmission of carrying in the scheduling control information, retransmit the up VOIP data block that the indicated needs of said 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 said re-transmission in B215, base station.
19., it is characterized in that the bearing mode of the up VOIP data block sign of said re-transmission is: the sign of in said E-AGCH and said E-UCCH, carrying the up VOIP data block of said re-transmission simultaneously according to claim 17 or 18 described methods.
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 said UE is through the up VOIP control signaling that control channel carries, will feed back to the base station to the ACK of descending VOIP data block after, said UE stops monitoring and receives said HS-SCCH; If the decoded information mistake, then UE is through said up VOIP control signaling, will feed back to the base station to the NACK of said descending VOIP data block after, UE starts monitoring and also receives said HS-SCCH.
21. method according to claim 20 is characterized in that, among the step B221, also comprises behind the said startup retransmission selection scheduling:
B222, base station dispatcher send the scheduling control information that retransmits descending VOIP data block through said HS-SCCH, and carry the sign that will retransmit descending VOIP data block to some extent in the said scheduling control information.
22. method according to claim 21 is characterized in that, also comprises behind the step B222:
The descending VOIP data block of said re-transmission is sent according to preset Traffic Channel and the timing relationship between the said control channel in B223, said base station on said Traffic Channel;
B224, said UE judge according to the UE sign that listens on the HS-SCCH whether UE self is scheduled, and the descending VOIP data block that is retransmitted according to the sign judgement needs of the descending VOIP data block of said re-transmission;
B225, said UE be according to said timing relationship, on the resource of said scheduling control information appointment, receives the descending VOIP data block of said re-transmission and decode.
23., it is characterized in that the bearing mode of the descending VOIP data block sign of said re-transmission is: the sign of in said HS-SCCH, carrying the descending VOIP data block of said re-transmission according to claim 21 or 22 described methods.
24. a 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 said transmitting element;
Transmitting element is used for sending through the descending scheduling control channel of link establishment process message with said configuration;
Judging unit after being used to receive the descending scheduling control channel of said configuration, is handled according to the corresponding retransmission selection scheduling is carried out in the judgement of decoded information in the described semi-static resource scheduling process of claim 1.
25. system according to claim 24 is characterized in that, said 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 said configuration.
26. system according to claim 24 is characterized in that, said judging unit, be further used for judging the decoded information mistake after, UE start to monitor and receives the descending scheduling control channel of said configuration; Simultaneously, after base station dispatcher is carried out re-transmission according to UE priority, load condition and delay requirement judgement needs, start retransmission selection scheduling.
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| CN101646202B (en) * | 2009-08-25 | 2011-11-16 | 普天信息技术研究院有限公司 | Realizing method of semi-static dispatching downlink transmission |
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| CN102158973B (en) * | 2010-02-11 | 2013-11-20 | 电信科学技术研究院 | Method, system and equipment for semi-duration dispatching, transmitting and processing |
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