CN102447547A - Hybrid automatic retransmission method, system and terminal in MC-HSUPA - Google Patents
Hybrid automatic retransmission method, system and terminal in MC-HSUPA Download PDFInfo
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Abstract
The invention discloses a hybrid automatic retransmission (HARQ) method in multi-carrier high speed uplink packet access (MC-HSUPA). In MC-HSUPA, a terminal selects HARQ process as scheduling transmission according to the process selecting rule and sends a corresponding HARQ process mark to a base station; the base station obtains HARQ process number according to the HARQ process mark and the process selecting rule and process uplink data at corresponding HARQ process. The invention discloses an HARQ system and terminal in MC-HSUPA at the same time. The proposal of the invention can make 4 HARQ scheduling processes owned by the terminal HARQ entity of the present MC-HSUPA expand to 8 scheduling processes to improve the processing performance of the MC-HSUPA terminal and the scheduling flexibility is improved to ensure the service quality and requirement.
Description
Technical field
The present invention relates to TDS-CDMA system (TD-SCDMA in the moving communicating field; TimeDivision Synchronous Code Division Multiple Access) the information transmission technology; Relate in particular to a kind of multi-carrier high-speed upstream packet and insert (MC-HSUPA; Multi-carrier High Speed UplinkPacket Access) mixes method, system and the terminal that retransmits (HARQ, Hybrid Automatic Repeat Request) automatically in.
Background technology
In the TD-SCDMA system, the length of a time division multiple access (TDMA, Time Division MultipleAccess) frame is 10ms; Be divided into two 5ms subframes; Subframe numbers is respectively 1 and 2, and is as shown in Figure 1, and the structure of 2 sub-frame in every 10ms frame length is identical.
In order to satisfy the growing demand of user to the high-speed upward grouped data business; Also in order to insert (HSDPA with the down high speed downlink grouped better; High Speed Downlink Packet Access) technology matches provides the support to higher quality of service; Third generation partner program (3GPP) has been introduced based on WCDMA (WCDMA at Rel6 and Rel7 respectively; Wideband Code Division MultipleAccess) and the HSUPA of TD-SCDMA technology, perhaps be referred to as up enhancing (Enhanced Uplink) or special-purpose channel (E-DCH, the Enhanced-Dedicated Channel) technology that strengthens.
In HSUPA, used the asynchronous HARQ mode of incremental redundancy (IR), merged and coding gain, improved systematic function through obtaining to retransmit.A HARQ entity is arranged in each UE in HSUPA, 8 parallel HARQ processes are arranged at most, wherein 4 are used for scheduled transmission, and 4 are used for non-scheduled transmission.The mode that retransmission mechanism is also the same with HSDPA have been adopted that the N channel stops and wait.
Physical layer carrying aspect, HSUPA has introduced new Physical Shared Channel-enhanced uplink physical channel (E-PUCH) and has carried corresponding transmission channel E-DCII.Simultaneously; In order to accomplish control corresponding, scheduling and feedback, HSUPA has introduced enhanced uplink random access channel (E-RUCCH), the absolute access grant channel of enhanced uplink (E-AGCH) and three physical control channels of enhanced uplink HARQ answering indication signal channel (E-HICH) in physical layer.Wherein the terminal that is used under the CELL DCH state of E-RUCCH is not having under the situation of resource authorization request authorize to carry out transfer of data; Its transmission means is the access way of preemptive type; Process and Physical Random Access Channel (PRACH; Physics Random Access Channel) identical, and can share physical code channel with PRACH.
E-AGCH is used for base station (NodeB) and transmits the scheduling resource authorization message to the terminal, and it comprises following physics control information: power authorization message, time slot authorization message, code channel authorization message, interim user network identity, the number of up-enhancing control channel (E-UCCH), the indication of resource continuous time, E-DCH cyclic sequence number, the indication of E-HICH channel etc.E-AGCH has two kinds of channel formats, and shown in table 1 and table 2, wherein table 1 is an E-AGCH type (type) 1, is used for traditional scheduler, and table 2 is E-AGCH type2, is used for traditional scheduler and semi-continuous scheduling.
Table 1
Table 2
E-UCCH is the E-DCH uplink control channel; Be mapped to and be used for carrying the HARQ relevant information among the E-PUCH, its content comprises the big or small by the definite transmission block of E-DCH transformat combination (E-TFC) of the HARQ process identification (PID) of 2 bits, the re-transmission sequence number of 2 bits (RSN, Retransmission Sequence Number) and 6 bits; Wherein the HARQ process identification (PID) of 2 bits can only be represented HARQ process 0～3; The base station is the type through the physical resource that uses, i.e. 8 HARQ processes are discerned in scheduling or non-scheduling; The HARQ process of scheduled transmission is used process 0-3, and non-dispatching process uses process 4-7.
E-HICH is used for the base station to the ACK/NACK of each transmission block of terminal feedback information, and in order to reduce the physical channel expense, E-HICH has adopted the mode of secondary spread spectrum, can be implemented in and carries maximum 80 signature users on the original physical code channel.The user's signature sequence is related with the resource dynamic of distribution simultaneously, can satisfy the demand of supporting that the Large Volume Data user is simultaneously online.
Throughput and peak rate for further raising system; 3GPP has introduced HSUPA with multicarrier; This technology can be carried out the HSUPA transmission on a plurality of carrier waves (N carrier wave) of a sub-district, the up N that can obtain of one side is doubly to the throughput of single carrier HSUPA; Also possibly doubly improve the peak rate at single terminal by N on the other hand.Each carrier wave all has a HARQ entity to handle the transmission and the re-transmission of upstream data among the MC-HSUPA.
In MC-HSUPA, do not allow to dispose non-scheduled transmission; Therefore each HARQ entity has only 4 HARQ processes in multicarrier system; This is equivalent to also have 4 HARQ processes that are used for non-scheduled transmission effectively not utilized, thereby has limited the terminal processing capacity of MC-HSUPA.In addition; If these 4 dispatching processes all are used for retransmitting in relatively poor channel circumstance; And current when having service quality (QoS) to require higher data arrives, then need wait for the HARQ process transmission that could use release after having process to discharge in 4 processes can causing QoS not to be protected.
Summary of the invention
In view of this, main purpose of the present invention is to provide method, system and the terminal of HARQ among a kind of MC-HSUPA, can improve the disposal ability at MC-HSUPA terminal, and ensures qos requirement through the flexibility that improves scheduling.
For achieving the above object, technical scheme of the present invention is achieved in that
The method of HARQ among a kind of MC-HSUPA provided by the invention, this method comprises:
Among the MC-HSUPA, the terminal selects the HARQ process as scheduled transmission according to the process selection rule, and sends the HARQ process identification (PID) of selected HARQ process to the base station;
The base station obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, and upstream data is handled in the HARQ of correspondence process.
In the such scheme, said process selection rule is: confirm in preceding 4 or back 4 HARQ processes, to select according to subframe numbers, wherein, when subframe numbers is 1, in HARQ process 0～3, select, when subframe numbers is 2, in HARQ process 4～7, select; Or, when subframe numbers is 1, in HARQ process 4～7, select, when subframe numbers is 2, in HARQ process 0～3, select;
Perhaps; The HARQ process indication of sending according to the base station is confirmed in preceding 4 or back 4 HARQ processes, to select; Wherein, when the HARQ process of receiving the base station transmission is designated as 0, in HARQ process 0～3, select; When the HARQ process of receiving the base station transmission is designated as 1, in HARQ process 4～7, select; Or, when the HARQ process of receiving the base station transmission is designated as 0, in HARQ process 4～7, select, when the HARQ process of receiving the base station transmission is designated as 1, in HARQ process 0～3, select.
In the such scheme, said HARQ process is designated as: the base station as the indication of HARQ process, takies the reservation position of E-AGCH type2 situation according to the HARQ process and sends corresponding HARQ process and indicate to the terminal.
In the such scheme, the HARQ process identification (PID) of selected HARQ process is sent to the base station in said terminal, for: E-UCCH message is sent to the base station in the terminal, the corresponding HARQ process identification (PID) of being selected by E-UCCH message carried terminal of HARQ process.
In the such scheme, said base station obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, for:
Said process selection rule is when confirming according to subframe numbers in preceding 4 or back 4 HARQ processes, to select, and the subframe numbers the when base station retransmits according to said HARQ process identification (PID) and terminal obtains the HARQ process number;
Perhaps, when said process selection rule was confirmed in preceding 4 or back 4 HARQ processes, to select for the HARQ process indication of sending according to the base station, the base station obtained the HARQ process number according to said HARQ process identification (PID) and the indication of HARQ process.
The system of HARQ among a kind of MC-HSUPA provided by the invention, this system comprises: terminal, base station; Wherein,
The terminal is used for MC-HSUPA, selects the HARQ process as scheduled transmission according to the process selection rule, and sends the HARQ process identification (PID) of selected HARQ process to the base station;
The base station is used to receive said HARQ process identification (PID), obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, and upstream data is handled in the HARQ of correspondence process.
In the such scheme, said terminal comprises: process selection module, process identification (PID) module; Wherein,
The process selection module is used for MC-HSUPA, selects the HARQ process as scheduled transmission according to the process selection rule, and the notification process identification module;
The process identification (PID) module is used for the HARQ process according to the selection of process identification (PID) module, sends corresponding HARQ process identification (PID) to the base station.
In the such scheme, said base station comprises: process number acquisition module, data processing module; Wherein,
The process number acquisition module is used to receive said HARQ process identification (PID), obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, and the notification data processing module;
Data processing module is used for upstream data is handled in the corresponding HARQ process of HARQ process number.
A kind of terminal provided by the invention, this terminal comprises: process selection module, process identification (PID) module; Wherein,
The process selection module is used for MC-HSUPA, selects the HARQ process as scheduled transmission according to the process selection rule, and the notification process identification module;
The process identification (PID) module is used for the HARQ process according to the selection of process identification (PID) module, sends the HARQ process identification (PID) of selected HARQ process to the base station.
Method, system and the terminal of HARQ among a kind of MC-HSUPA provided by the invention, among the MC-HSUPA, the terminal selects the HARQ process as scheduled transmission according to the process selection rule, and sends corresponding HARQ process identification (PID) to the base station; The base station obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, and upstream data is handled in the HARQ of correspondence process; So; In MC-HSUPA; 4 HARQ processes of the non-scheduled transmission that can not be used are used do scheduled transmission; 4 HARQ dispatching processes that existing MC-HSUPA terminal HARQ entity is had expand to 8 dispatching processes, can improve the disposal ability at MC-HSUPA terminal, and ensure qos requirement through the flexibility that improves scheduling.
Description of drawings
Fig. 1 is the sketch map of tdma frame structure in the TD-SCDMA system;
Fig. 2 realizes the schematic flow sheet of the method for HARQ among the MC-HSUPA for the present invention;
Fig. 3 realizes the structural representation of the system of HARQ among the MC-HSUPA for the present invention;
Fig. 4 realizes the schematic flow sheet of the method for HARQ among the MC-HSUPA for the embodiment of the invention.
Embodiment
Basic thought of the present invention is: among the MC-HSUPA, the terminal selects the HARQ process as scheduled transmission according to the process selection rule, and sends the HARQ process identification (PID) of selected HARQ process to the base station; The base station obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, and upstream data is handled in the HARQ of correspondence process.
Said process selection rule is to be arranged by terminal and base station in advance, comprising:
Confirm in preceding 4 or back 4 HARQ processes, to select according to subframe numbers, wherein, when subframe numbers is 1, in HARQ process 0～3, select, when subframe numbers is 2, in HARQ process 4～7, select; Or, when subframe numbers is 1, in HARQ process 4～7, select, when subframe numbers is 2, in HARQ process 0～3, select;
Perhaps; The HARQ process indication of sending according to the base station is confirmed in preceding 4 or back 4 HARQ processes, to select; Wherein, when the HARQ process of receiving the base station transmission is designated as 0, in HARQ process 0～3, select; When the HARQ process of receiving the base station transmission is designated as 1, in HARQ process 4～7, select; Or, when the HARQ process of receiving the base station transmission is designated as 0, in HARQ process 4～7, select, when the HARQ process of receiving the base station transmission is designated as 1, in HARQ process 0～3, select; Or the like.
Said HARQ process is designated as: indicate the reservation position of E-AGCH type2 the base station as the HARQ process; Taking situation according to the HARQ process sends corresponding HARQ process and indicates to the terminal; Like: HARQ process 0～3 during not by absorb; The HARQ process of sending is designated as 0, and HARQ process 0～3 is during by absorb, and the HARQ process of transmission is designated as 1.
Through accompanying drawing and specific embodiment the present invention is done further detailed description below.
The present invention realizes the method for HARQ among the MC-HSUPA, and is as shown in Figure 2, and this method comprises following step:
Among the step 101:MC-HSUPA, the terminal selects the HARQ process as scheduled transmission in HARQ process 0～7 according to the process selection rule;
Concrete; Making an appointment in terminal and base station: confirms in preceding 4 or back 4 HARQ processes, to select according to subframe numbers; Then among the MC-HSUPA, the subframe numbers of terminal when retransmitting is 1 o'clock, in HARQ process 0～3, selects the HARQ process as scheduled transmission; Subframe numbers is 2 o'clock, in HARQ process 4～7, selects the HARQ process as scheduled transmission; Or the subframe numbers of terminal when retransmitting is 1 o'clock, in HARQ process 4～7, selects the HARQ process as scheduled transmission, and subframe numbers is 2 o'clock, in HARQ process 0～3, selects the HARQ process as scheduled transmission;
Perhaps, make an appointment in terminal and base station: the HARQ process indication of sending according to the base station is confirmed in preceding 4 or back 4 HARQ processes, to select; Then among the MC-HSUPA; Indicate the reservation position of E-AGCH type2 the base station as the HARQ process; Take situation according to the HARQ process and send corresponding HARQ process and indicate to the terminal, during not by absorb, the HARQ process of transmission is designated as 0 like: HARQ process 0～3; HARQ process 0～3 is during by absorb, and the HARQ process of transmission is designated as 1; The terminal receives E-AGCH, and indicates according to HARQ process wherein, is designated as at 0 o'clock in the HARQ process, in HARQ process 0～3, selects the HARQ process as scheduled transmission; Be designated as at 1 o'clock in the HARQ process, in HARQ process 4～7, select the HARQ process as scheduled transmission; Or, be designated as at 0 o'clock in the HARQ process, in HARQ process 4～6, select the HARQ process as scheduled transmission; Be designated as at 1 o'clock in the HARQ process, in HARQ process 0～3, select the HARQ process as scheduled transmission.
Step 102: the terminal is sent corresponding HARQ process identification (PID) according to the HARQ process of selecting to the base station;
In this step; After confirming in preceding 4 or back 4 HARQ processes, to select according to subframe numbers; E-UCCH message is sent to the base station in the terminal; The pairing HARQ process identification (PID) of HARQ process by the selection of E-UCCH message carried terminal; General, the relation of the process number of the HARQ process of said HARQ process identification (PID) and selection is as shown in table 3, i.e. HARQ process 0 and 4 corresponding HARQ process identification (PID)s are 00, HARQ process 1 and 5 corresponding HARQ process identification (PID)s are 01, the HARQ process identification (PID)s of HARQ process 2 and 6 correspondences are 10, HARQ process 3 and 7 respectively the HARQ process identification (PID) of correspondence be 11;
Table 3
Or; After the HARQ process indication of sending according to the base station is confirmed in preceding 4 or back 4 HARQ processes, to select; E-UCCH message is sent to the base station in the terminal; The pairing HARQ process identification (PID) of HARQ process by the selection of E-UCCH message carried terminal; General, the relation of the process number of the HARQ process of said HARQ process identification (PID) and selection is as shown in table 4, i.e. HARQ process 0 and 4 corresponding HARQ process identification (PID)s are 00, HARQ process 1 and 5 corresponding HARQ process identification (PID)s are 01, the HARQ process identification (PID)s of HARQ process 2 and 6 correspondences are 10, HARQ process 3 and 7 respectively the HARQ process identification (PID) of correspondence be 11.
Table 4
Step 103: the base station obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, and upstream data is handled in the HARQ of correspondence process;
Concrete; The base station is when receiving the HARQ process identification (PID) that E-UCCH message is carried; Reach the process selection rule of arranging according to said HARQ process identification (PID) and from the relation shown in table 3 or the table 4, obtain the HARQ process number, upstream data decoding back is handled in the HARQ process of said HARQ process number correspondence with the terminal; Wherein, said process selection rule is when confirming according to subframe numbers in preceding 4 or back 4 HARQ processes, to select, and the subframe numbers the when base station retransmits according to said HARQ process identification (PID) and terminal obtains the HARQ process number; When said process selection rule was confirmed in preceding 4 or back 4 HARQ processes, to select for the HARQ process indication of sending according to the base station, the base station obtained the HARQ process number according to said HARQ process identification (PID) and the indication of HARQ process; As: said HARQ process identification (PID) be 00, said process selection rule is when confirming according to subframe numbers in preceding 4 or back 4 HARQ processes, to select; Subframe numbers when the base station retransmits according to the terminal is 1 o'clock; From table 3, obtaining the HARQ process number is 1; Subframe numbers is 2 o'clock, and from table 3, obtaining the HARQ process number is 4;
Whether said processing generally is to be correlated with for the HARQ process supply to handle, for example: produce ACK/NACK message, decision and retransmit etc.
In order to realize said method, the present invention also provides the system of HARQ among a kind of MC-HSUPA of realization, and is as shown in Figure 3, and this system comprises: terminal 31, base station 32; Wherein,
Terminal 31 is used for MC-HSUPA, in HARQ process 0～7, selects the HARQ process as scheduled transmission according to the process selection rule, and sends the HARQ process identification (PID) of the HARQ process that is selected in to base station 32;
Base station 32 is used to receive said HARQ process identification (PID), obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, and upstream data is handled in the HARQ of correspondence process;
Said process selection rule is to be arranged by terminal 31 and base station 32 in advance, comprising:
Confirm in preceding 4 or back 4 HARQ processes, to select according to subframe numbers, wherein, when subframe numbers is 1, in HARQ process 0～3, select, when subframe numbers is 2, in HARQ process 4～7, select; Or, when subframe numbers is 1, in HARQ process 4～7, select, when subframe numbers is 2, in HARQ process 0～3, select;
Perhaps; The HARQ process indication of sending according to base station 32 is confirmed in preceding 4 or back 4 HARQ processes, to select; Wherein, when the HARQ process of receiving base station 32 transmissions is designated as 0, in HARQ process 0～3, select; When the HARQ process of receiving the base station transmission is designated as 1, in HARQ process 4～7, select; Or, when the HARQ process of receiving the base station transmission is designated as 0, in HARQ process 4～7, select, when the HARQ process of receiving the base station transmission is designated as 1, in HARQ process 0～3, select; Or the like.
Said HARQ process is designated as: indicate the reservation position of E-AGCH type2 base station 32 as the HARQ process; Taking situation according to the HARQ process sends corresponding HARQ process and indicates to terminal 31; Like: HARQ process 0～3 during not by absorb; The HARQ process of sending is designated as 0, and HARQ process 0～3 is during by absorb, and the HARQ process of transmission is designated as 1.
Said terminal 31 comprises: process selection module 311, process identification (PID) module 312; Wherein,
Process selection module 311 is used for MC-HSUPA, in HARQ process 0～7, selects the HARQ process as scheduled transmission according to the process selection rule, and notification process identification module 312;
Process identification (PID) module 312 is used for the HARQ process according to 311 selections of process identification (PID) module, sends corresponding HARQ process identification (PID) to base station 32;
Said base station 32 comprises: process number acquisition module 321, data processing module 322; Wherein,
Process number acquisition module 321 is used to receive said HARQ process identification (PID), obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, and notification data processing module 322;
Said process identification (PID) module 312 is sent corresponding HARQ process identification (PID) to base station 32; Generally be; Process identification (PID) module 312 is sent E-UCCH message to the base station after confirming according to subframe numbers in preceding 4 or back 4 HARQ processes, to select, carry the corresponding HARQ process identification (PID) of HARQ process that process selection module 311 is selected by E-UCCH message; General, the relation of the process number of the HARQ process of said HARQ process identification (PID), subframe numbers and selection is as shown in table 3; Process identification (PID) module 312 is after the HARQ process indication of sending according to base station 32 is confirmed in preceding 4 or back 4 HARQ processes, to select; Send E-UCCH message to the base station; Carry the corresponding HARQ process identification (PID) of HARQ process that process selection module 311 is selected by E-UCCH message; General, the relation of the process number of the HARQ process of said HARQ process identification (PID), the indication of HARQ process and selection is as shown in table 4.
Said process number acquisition module 321 obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule; Generally be; Process number acquisition module 321 is when receiving the HARQ process identification (PID) that E-UCCH message is carried; Reach the process selection rule of arranging according to said HARQ process identification (PID) and from the relation shown in table 3 or the table 4, obtain the HARQ process number with terminal 31; Wherein, said process selection rule is when confirming according to subframe numbers in preceding 4 or back 4 HARQ processes, to select, and the subframe numbers when process number acquisition module 321 retransmits according to said HARQ process identification (PID) and terminal 31 obtains the HARQ process number; When said process selection rule was confirmed in preceding 4 or back 4 HARQ processes, to select for the HARQ process indication of sending according to base station 32, process number acquisition module 321 obtained the HARQ process number according to said HARQ process identification (PID) and the indication of HARQ process.
Based on said system, the present invention also provides a kind of terminal, and is as shown in Figure 3, and this terminal 31 comprises: process selection module 311, process identification (PID) module 312; Wherein,
Process selection module 311 is used for MC-HSUPA, in HARQ process 0～7, selects the HARQ process as scheduled transmission according to the process selection rule, and notification process identification module 312;
Process identification (PID) module 312 is used for the HARQ process according to 311 selections of process identification (PID) module, sends corresponding HARQ process identification (PID) to base station 32;
Said process selection rule is to be arranged by terminal 31 and base station 32 in advance, comprising:
Confirm in preceding 4 or back 4 HARQ processes, to select according to subframe numbers, wherein, when subframe numbers is 1, in HARQ process 0～3, select, when subframe numbers is 2, in HARQ process 4～7, select; Or, when subframe numbers is 1, in HARQ process 4～7, select, when subframe numbers is 2, in HARQ process 0～3, select;
Perhaps; The HARQ process indication of sending according to base station 32 is confirmed in preceding 4 or back 4 HARQ processes, to select; Wherein, when the HARQ process of receiving base station 32 transmissions is designated as 0, in HARQ process 0～3, select; When the HARQ process of receiving base station 32 transmissions is designated as 1, in HARQ process 4～7, select; Or, when the HARQ process of receiving the base station transmission is designated as 0, in HARQ process 4～7, select, when the HARQ process of receiving the base station transmission is designated as 1, in HARQ process 0～3, select; Or the like.
Said process identification (PID) module 312 is sent corresponding HARQ process identification (PID) to base station 32; Generally be; Process identification (PID) module 312 is after confirming according to subframe numbers in preceding 4 or back 4 HARQ processes, to select; Send E-UCCH message to base station 32, carry the corresponding HARQ process identification (PID) of HARQ process that process selection module 311 is selected by E-UCCH message, the relation of the process number of the HARQ process of said HARQ process identification (PID), subframe numbers and selection is as shown in table 3; Process identification (PID) module 312 is after the HARQ process indication of sending according to base station 32 is confirmed in preceding 4 or back 4 HARQ processes, to select; Send E-UCCH message to base station 32; Carry the corresponding HARQ process identification (PID) of HARQ process that process selection module 311 is selected by E-UCCH message, the relation of the process number of the HARQ process of said HARQ process identification (PID), the indication of HARQ process and selection is as shown in table 4.
Specify the implementation procedure and the principle of method of the present invention below in conjunction with specific embodiment.
In the present embodiment, the process selection rule adopts according to subframe numbers to be confirmed perhaps to select in back 4 HARQ processes at preceding 4, and present embodiment is realized the method for HARQ among the MC-HSUPA, and as shown in Figure 4, this method comprises following step:
Step 401: the terminal is initiated Radio Resource control (RRC) connection to radio network controller (RNC) and is set up request process, the MC-HSUPA ability of reporting terminal;
Step 402:RNC initiates Radio Link to NodeB and sets up process, with the MC-HSUPA ability informing base station at terminal, and carries the carrier wave that the terminal is given in configuration;
Step 403: the base station is returned Radio Link and is set up response message to RNC, and returns the carrier wave that allows the terminal to send E-RUCCH to RNC;
Step 404:RNC sends Radio Link and sets up message, gives the carrier wave at terminal and the carrier wave notice terminal that E-RUCCH is sent in permission with configuration;
Step 405: the RRC connection setup complete message is initiated at the terminal;
Step 406: the terminal is initiated the E-RUCCH process and is applied for scheduling authorization to the base station on the carrier wave of configuration;
Step 407: after the carrier wave of E-RUCCH is received in the base station, on RNC disposes to the carrier wave at terminal, send the corresponding E-AGCH of each carrier wave, the authorization resources on each carrier wave is carried to the terminal;
Step 408: each carrier wave of terminal monitoring and after receiving corresponding E-AGCH, to carry out E-TFC according to authorization resources and select, the size and the transmitted power of piece sent in decision, and the HARQ entity of each carrier wave is selected HARQ process separately according to the process selection rule simultaneously;
In this step; Said according to process selection rule selection HARQ process separately, be specially: each HARQ entity has 8 HARQ processes, is designated 0～7; When subframe numbers is 0, from HARQ process 0～3, select the HARQ process, when subframe numbers is 1, from HARQ process 4～7, select the HARQ process.
Step 409:UE organizes E-PUCH on the carrier wave of correspondence, to send, the HARQ process identification (PID) that the E-UCCH that wherein shines upon carries 2 bits, and the corresponding relation of the HARQ process number of said HARQ process identification (PID) and selection is referring to table 3;
Step 410: the base station after receiving E-PUCH on the corresponding carrier wave, the decoding E-UCCH of mapping wherein at first, the HARQ process identification (PID) of carrying according to process selection rule and E-UCCH obtains the HARQ process number, and upstream data is handled in the HARQ of correspondence process;
Concrete; The base station is after receiving E-PUCH on the corresponding carrier wave; The wherein E-UCCH of mapping at first decodes; It is the HARQ process number between 0～7 that the HARQ process identification (PID) that subframe numbers that retransmits according to the terminal and E-UCCH carry obtains value, then the upstream data among the base station decodes E-PUCH and deliver to corresponding HARQ process and handle.
Step 411: the base station according to data processed result to terminal feedback E-HICH.
Through method of the present invention; In MC-HSUPA; 4 HARQ processes of the non-scheduled transmission that can not be used are used do scheduled transmission; 4 HARQ dispatching processes that existing MC-HSUPA terminal HARQ entity is had expand to 8 dispatching processes, can improve the disposal ability at MC-HSUPA terminal, and ensure qos requirement through the flexibility that improves scheduling.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. a multi-carrier high-speed upstream packet inserts and mixes the method that retransmits (HARQ) automatically in (MC-HSUPA), it is characterized in that this method comprises:
Among the MC-HSUPA, the terminal selects the HARQ process as scheduled transmission according to the process selection rule, and sends the HARQ process identification (PID) of selected HARQ process to the base station;
The base station obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, and upstream data is handled in the HARQ of correspondence process.
2. method according to claim 1 is characterized in that, said process selection rule is: confirm in preceding 4 or back 4 HARQ processes, to select according to subframe numbers; Wherein, when subframe numbers is 1, in HARQ process 0～3, select; When subframe numbers is 2, in HARQ process 4～7, select; Or, when subframe numbers is 1, in HARQ process 4～7, select, when subframe numbers is 2, in HARQ process 0～3, select;
Perhaps; The HARQ process indication of sending according to the base station is confirmed in preceding 4 or back 4 HARQ processes, to select; Wherein, when the HARQ process of receiving the base station transmission is designated as 0, in HARQ process 0～3, select; When the HARQ process of receiving the base station transmission is designated as 1, in HARQ process 4～7, select; Or, when the HARQ process of receiving the base station transmission is designated as 0, in HARQ process 4～7, select, when the HARQ process of receiving the base station transmission is designated as 1, in HARQ process 0～3, select.
3. method according to claim 2; It is characterized in that; Said HARQ process is designated as: the base station as the indication of HARQ process, takies the reservation position of up absolute access grant channel (E-AGCH) type 2 situation according to the HARQ process and sends corresponding HARQ process and indicate to the terminal.
4. according to claim 2 or 3 described methods; It is characterized in that; The HARQ process identification (PID) of selected HARQ process is sent at said terminal to the base station; For: up-enhancing control channel (E-UCCH) message is sent to the base station in the terminal, by the corresponding HARQ process identification (PID) of HARQ process of E-UCCH message carried terminal selection.
5. according to claim 2 or 3 described methods, it is characterized in that said base station obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, for:
Said process selection rule is when confirming according to subframe numbers in preceding 4 or back 4 HARQ processes, to select, and the subframe numbers the when base station retransmits according to said HARQ process identification (PID) and terminal obtains the HARQ process number;
Perhaps, when said process selection rule was confirmed in preceding 4 or back 4 HARQ processes, to select for the HARQ process indication of sending according to the base station, the base station obtained the HARQ process number according to said HARQ process identification (PID) and the indication of HARQ process.
6. the system of HARQ among the MC-HSUPA is characterized in that this system comprises: terminal, base station; Wherein,
The terminal is used for MC-HSUPA, selects the HARQ process as scheduled transmission according to the process selection rule, and sends the HARQ process identification (PID) of selected HARQ process to the base station;
The base station is used to receive said HARQ process identification (PID), obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, and upstream data is handled in the HARQ of correspondence process.
7. system according to claim 6 is characterized in that, said process selection rule is: confirm in preceding 4 or back 4 HARQ processes, to select according to subframe numbers; Wherein, when subframe numbers is 1, in HARQ process 0～3, select; When subframe numbers is 2, in HARQ process 4～7, select; Or, when subframe numbers is 1, in HARQ process 4～7, select, when subframe numbers is 2, in HARQ process 0～3, select;
Perhaps; The HARQ process indication of sending according to the base station is confirmed in preceding 4 or back 4 HARQ processes, to select; Wherein, when the HARQ process of receiving the base station transmission is designated as 0, in HARQ process 0～3, select; When the HARQ process of receiving the base station transmission is designated as 1, in HARQ process 4～7, select; Or, when the HARQ process of receiving the base station transmission is designated as 0, in HARQ process 4～7, select, when the HARQ process of receiving the base station transmission is designated as 1, in HARQ process 0～3, select.
8. according to claim 6 or 7 described systems, it is characterized in that said terminal comprises: process selection module, process identification (PID) module; Wherein,
The process selection module is used for MC-HSUPA, selects the HARQ process as scheduled transmission according to the process selection rule, and the notification process identification module;
The process identification (PID) module is used for the HARQ process according to the selection of process identification (PID) module, sends corresponding HARQ process identification (PID) to the base station.
9. according to claim 6 or 7 described systems, it is characterized in that said base station comprises: process number acquisition module, data processing module; Wherein,
The process number acquisition module is used to receive said HARQ process identification (PID), obtains the HARQ process number according to said HARQ process identification (PID) and process selection rule, and the notification data processing module;
Data processing module is used for upstream data is handled in the corresponding HARQ process of HARQ process number.
10. a terminal is characterized in that, this terminal comprises: process selection module, process identification (PID) module; Wherein,
The process selection module is used for MC-HSUPA, selects the HARQ process as scheduled transmission according to the process selection rule, and the notification process identification module;
The process identification (PID) module is used for the HARQ process according to the selection of process identification (PID) module, sends the HARQ process identification (PID) of selected HARQ process to the base station.
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