CN102594532A - Method of handling latency impact on CoMP HARQ and feedback operation and related device - Google Patents
Method of handling latency impact on CoMP HARQ and feedback operation and related device Download PDFInfo
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Abstract
The present invention relates to a method of handling latency impact on CoMP HARQ and feedback operation and a related device, which is used for a network of a wireless communication system. A mobile device supports a coordinated multipoint transmission/reception (CoMP) operation. The method comprises determining a modified HARQ operation for the CoMP operation, wherein the modified HARQ operation is a derived HARQ operation or a variation of the HARQ operation; configuring the modified HARQ operation to a mobile device in the wireless communication system when the mobile device participates in the CoMP operation; and performing a transmission or a reception of a HARQ process according to the modified HARQ operation.
Description
Technical field
The present invention relates to a kind of method and communicator thereof that is used for a wireless communication system, relate in particular to a kind of method and the communicator thereof of processing delay that be used for for the influence of the automatic repeat requests of mixing of coordinating multileaving/reception and passback running.
Background technology
Third generation partner program (the 3rd Generation Partnership Project; 3GPP) in order to improve Universal Mobile Telecommunications System (Universal Mobile Telecommunications System; UMTS); Formulated Long Term Evolution (Long Term Evolution with better performance; LTE) system, it supports third generation partner program the 8th version (3GPP Rel-8) standard and/or third generation partner program the 9th version (3GPP Rel-9) standard, to satisfy the demand that the user increases day by day.Long evolving system is regarded as to be provided high data transmission rate, low latent time, grouping optimization and improves power system capacity and a kind of new wave point and the wireless network architecture of coverage; Include by a plurality of evolved base station (evolved Node-Bs; ENBs) the evolved general land global radio access network of being formed (Evolved Universal Terrestrial Radio Access Network; E-UTRAN); It communicates with user side on the one hand, on the other hand with handle Non-Access Stratum (Non Access Stratum, NAS) core network of control communicates; And core network comprises gateway (serving gateway) and mobile management unit (Mobility Management Entity, MME) entity such as grade.
Advanced Long Term Evolution (LTE-advanced; LTE-A) system be long evolving system advance the rank version; It includes carrier wave integrated (carrier aggregation), coordinates multileaving/reception (coordinatedmultipoint transmission/reception; CoMP) and multiple-input and multiple-output (multi-inputmulti-output, advanced technology such as MIMO) is with the extension bandwidth, quick transfer power state is provided and promotes cell edge usefulness.For user side and evolved base station in the advanced long evolving system can be intercomed mutually; The standard formulated for advanced long evolving system must be supported in user side and evolved base station, like the standard of third generation partner program the tenth version (3GPP Rel-10) standard or more recent version.
When coordination multileaving/reception is set to user side and a plurality of sub-district (like cooperation point (cooperating points)), user side can communicate with a plurality of sub-districts simultaneously, promptly through the access service of some or all sub-districts.More detailed, single sub-district or a plurality of sub-district can be managed (as through far-end wireless station (remote radio head, RRH)) in an evolved base station.That is to say, the cell identification of a plurality of sub-districts (cell ID) but the phase XOR is identical.Therefore, the signal that is transmitted in user side and a plurality of minizones can have preferable quality.In detail, the sub-district of participating in coordination multileaving/reception can be considered cooperation sub-district (cooperating cells), and it has a Serving cell (serving cell).Generally speaking, the system of the signal quality between Serving cell and user side is superior to the signal quality between other cooperation sub-districts and user side.Coordinate multileaving/required control information of reception running and can be sent to Serving cell by user side earlier usually, then, Serving cell can exchange this control information with other cooperation sub-districts, but makes coordination multileaving/reception normal operation.Further, coordinate multileaving/receptions and can be divided into two kinds of primary categories: Combined Treatment (Joint Processing, JP) and coordinated scheduling/wave beam formation (Coordinated Scheduling/Beamforming, CS/CB).The main difference that Combined Treatment and coordinated scheduling/wave beam forms is that all cooperation sub-districts all have the user side desired data when using (promptly launching) Combined Treatment; And when using coordinated scheduling/wave beam to form, only have Serving cell to have the user side desired data.Combined Treatment can further be categorized as unites transmission (joint transmission) and dynamic cell selection (dynamic cellselection).When transmission was united in use, the data of user side can transmit (as with synchronous or asynchronous mode) to user side through a plurality of cooperations sub-district, to improve signal quality and/or to eliminate and disturb; When using dynamic cell to select, the data of user side only can be sent to user side through wherein a cooperation sub-district (like suggestion or the selection according to user side), to improve signal quality and/or to avoid interference.On the other hand, when using coordinated scheduling/wave beam to form, the data of user side only can be sent to user side through Serving cell, and other cooperation sub-districts can form and alleviated interference through stopping to transmit data or adjustment wave beam this moment.
(hybrid automatic repeat request, HARQ) program is used in long evolving system and the advanced long evolving system, is used to provide high efficiency and reliable transfer of data to mix automatic repeat requests.Be different from repeat requests program (ARQ), (error correction code ECC) can be used in the automatic repeat requests program of mixing error correcting code.For instance, if receiving terminal (like user side) decoded packet correctly, receiving terminal can return payment received and confirm that (acknowledgement, ACK) to the transmission end (like the sub-district) are correctly received with notice packet.On the contrary, if receiving terminal (like user side) decoded packet correctly, receiving terminal can return not the payment received mistake, and (negative acknowledgement, NACK) to the transmission end (like the sub-district) are correctly received with notice packet.Under this situation, receiving terminal can storage area or all grouping in the soft buffer (soft buffer) of receiving terminal, receive the grouping of re-transmission at receiving terminal after, receiving terminal can merge the grouping and the stored packet of re-transmission, to carry out combined decoding.Receiving terminal can continue to mix automatic repeat requests program up to this grouping by till correctly decoding or number of retransmissions surpass a predefined upper limit.Can pass through to use error correcting code by decoding correctly because the grouping of minority mistake takes place, and need not return not payment received mistake (promptly requiring re-transmission), under the situation that number of retransmissions reduces, can improve the output rating of communication system.
Yet when carry out mixing automatic repeat requests program, coordinating multileaving/receptions may can't operate because coordinating delay (coordination latency).In detail; At Serving cell behind the user side receiving control information; Serving cell and other cooperation sub-districts can exchange necessary information (like data, coordination control information, scheduling and/or the resource distribution of user side), but make coordination multileaving/reception normal operation.Yet; Mix automatic repeat requests program (as transmitting or receiving) according to third generation partner program standard defined two-way time of (round-trip time; RTT) operate, the necessary information of exchange possibly can't be accomplished in Serving cell and other cooperation sub-districts in two-way time.In other words, the cooperation sub-district possibly need before accomplishing the necessary information of exchange, to carry out and mix automatic repeat requests program.That is to say that coordination multileaving/reception may be used wrong, expired or incomplete control information operates, and reduces the usefulness of coordinating multileaving/reception.Therefore, how solving the problem of coordinating to postpone to be brought is important problem.
Summary of the invention
Therefore, main purpose of the present invention promptly is a kind of method and communicator thereof are provided, and is used for the influence of processing delay for the automatic repeat requests of mixing of coordinating multileaving/reception and passback running, to address the above problem.
The present invention discloses a kind of processing one and mixes automatic repeat requests (hybrid automatic repeatrequest; HARQ) method of running; A network terminal that is used for a wireless communication system; This mobile device supports one to coordinate multileaving/reception (coordinated multipoint transmission/reception; CoMP) running; This method includes the automatic repeat requests running of mixing (modified HARQ operation) that decision is used for a modification of this coordination multileaving/reception running, and wherein the automatic repeat requests running of the mixing of this modification is a maybe variation of the automatic repeat requests running of this mixing of the automatic repeat requests running of mixing (derived HARQ operation) of deriving; The coordination multileaving/when reception operated, the automatic repeat requests of mixing of setting this modification operated to this mobile device when a mobile device in this wireless communication system participates in being somebody's turn to do; And, carry out one and mix a transmission or a reception of automatic repeat requests program (HARQ process) according to the automatic repeat requests running of the mixing of this modification.
The present invention discloses a kind of processing one in addition and mixes automatic repeat requests (hybrid automatic repeatrequest; HARQ) method of running; Be used for a wireless communication system one mobile device; This mobile device supports one to coordinate multileaving/reception (coordinated multipoint transmission/reception; CoMP) running; This method includes when this mobile device is participated in this coordinations multileaving/receptions running, and the automatic repeat requests of mixing that a network terminal of this wireless communication system is set this modification operates to this mobile device, and wherein to operate be that the automatic repeat requests of mixing of deriving operates (derived HARQ operation) maybe variation of operating of the automatic repeat requests of this mixing to the automatic repeat requests of the mixing of this modification; And, carry out one and mix a transmission or a reception of automatic repeat requests program (HARQ process) according to the automatic repeat requests running of the mixing of this modification.
The present invention discloses a kind of processing one in addition and coordinates multileaving/reception (coordinated multipointtransmission/reception; CoMP) method of running; A network terminal that is used for a wireless communication system; This network terminal support should be coordinated multileaving/reception running; This method include at least one transfer mode that decision this coordinations multileaving/receptions operates and modulation and coded system (modulation andcoding scheme, MCS) at least one, be used for mixing transmission in succession or the reception that automatic repeat requests operates corresponding to this; And according in this at least one transfer mode and modulation and the coded system at least one, carry out that maybe this is received in a mobile device in this wireless communication system corresponding to this this transmission that mixes automatic repeat requests running.
Description of drawings
Fig. 1 is the sketch map of the embodiment of the invention one wireless communication system.
Fig. 2 is the sketch map of the embodiment of the invention one communicator.
Fig. 3 is used for the sketch map of the communications protocol layers of a wireless communication system for the embodiment of the invention.
Fig. 4 is the sketch map of the embodiment of the invention one flow process.
Fig. 5 is the sketch map of the embodiment of the invention one flow process.
[main element symbol description]
10 wireless communication systems
20 communicators
200 processing unit
210 memory cell
214 program codes
220 communications interface units
300 radio resource control layers
302 packet data convergence protocols
304 wireless chain control layers
306 media access control layers
308 physical layers
40,50 flow processs
400,402,404,406,408, step
500、502、504、506
Embodiment
Please refer to Fig. 1; Fig. 1 is the sketch map of the embodiment of the invention one wireless communication system 10; It is briefly by a network terminal and a plurality of user side (user equipments; UEs) form, and wherein network terminal and user side support coordination multileaving/reception (coordinated multipoint transmission/reception, CoMP).In Fig. 1, network terminal and user side are used for explaining the framework of wireless communication system 10.In advanced long evolving system; Network terminal can be an evolved general land global radio access network (evolved universal terrestrial radio access network; E-UTRAN); It can include a plurality of evolved base station (evolved NBs, eNBs) and relay station (relays).Further, one or more sub-district (like cooperation sub-district (cooperating cells)) can be managed in each evolved base station, and relay station also can be used as a sub-district.User side can be devices such as mobile phone, mobile computer, flat computer, e-book and portable computer system.In addition, according to transmission direction, can network terminal and user side be regarded as transmission end or receiving terminal respectively.For instance, for a up link (uplink, UL), user side is transmission end and network terminal is a receiving terminal; (downlink, DL), network terminal is transmission end and user side is a receiving terminal for a down link.
Please refer to Fig. 2, Fig. 2 is the sketch map of the embodiment of the invention one communicator 20.Communicator 20 can be user side or the network terminal among Fig. 1, comprises a processing unit 200, a memory cell 210 and a communications interface unit 220.Processing unit 200 can be a microprocessor or an ASIC (application-specific integrated circuit, ASIC).Memory cell 210 can be arbitrary data storage device, is used for storing a program code 214, and reads and executive program code 214 through processing unit 200.For instance; Memory cell 210 can be subscriber identification module (subscriber identitymodule; SIM), read-only memory (read-only memory; ROM), (random-access memory RAM), compact disc read-only memory (CD-ROM/DVD-ROM), tape (magnetic tape), hard disk (hard disk) and optical data storage device (optical data storagedevice) etc., and is not limited thereto random access memory.Control communications interface unit 220 can be a wireless transceiver, and it is used for transmitting and the reception wireless signal according to the result of processing unit 200.
Please refer to Fig. 3, Fig. 3 is used for the sketch map of the communications protocol layers of wireless communication system 10 for the embodiment of the invention.The behavior definable of part protocol layer reaches and carries out through processing unit 200 in program code 214.Protocol layer is respectively Radio Resource control (radio resource control from top to bottom; RRC) layer 300, PDCP (packet data convergence protocol; PDCP) layer 302, Radio Link control (radio link control; RLC) layer 304, medium access control (medium accesscontrol, MAC) layer 306 and physics (physical, PHY) layer 308.Radio resource control layer 300 is used to carry out broadcasting, calling, Radio Resource control and links management, measures passback and control and be used for producing and the radio bearer control of releasing wireless loading (radio bearer).Packet data convergence protocol 302 is used for handling the encryption and the integrity protection (integrity protection) of transmission, and passs the pass order of keeping grouping when (handover) takes place in friendship.Wireless chain control layer 304 is used to cut apart (segmentation)/serial connection (concatenation) and divides into groups, and when packet drop, keeps the pass order of grouping.Media access control layer 306 is used to mix automatic repeat requests (hybrid automatic repeat request; HARQ) program, compound logic passage, insert passage (random access channel, RACH) program and keep the up link timing alignment at random.In mixing automatic repeat requests program, when user side successfully receives and data/control of the media access control layer of decoding when dividing into groups, (acknowledgement is ACK) to network terminal then to return payment received affirmation; If not, then do not return one not the payment received mistake (negative acknowledgement is NACK) to network terminal.Physical layer 308 is used to provide physical channel.Be noted that Fig. 3 is used for the behavior of description protocol layer briefly, in fact, be used in the advanced long evolving system of different editions according to protocol layer, its behavior is different.
Please refer to Fig. 4, Fig. 4 is the flow chart of the embodiment of the invention one flow process 40.Flow process 40 is used for the network terminal of Fig. 1, is used for handling the automatic repeat requests running of mixing.Flow process 40 can be compiled into program code 214, and it comprises following steps:
Step 400: beginning.
Step 402: decision is used to coordinate the automatic repeat requests running of mixing (modified HARQ operation) that one of multileaving/reception running is revised, and wherein the automatic repeat requests running of the mixing of this modification is an automatic repeat requests running of mixing (derived HARQ operation) of deriving or a variation that mixes automatic repeat requests running.
Step 404: the coordination multileaving/when reception operated, the automatic repeat requests of mixing of setting this modification operated to this user side when a user side is participated in.
Step 406:, carry out one and mix a transmission or a reception of automatic repeat requests program according to the automatic repeat requests running of the mixing of this modification.
Step 408: finish.
According to flow process 40; Network terminal (like the Serving cell (serving cell) of user side) decision earlier is used to coordinate the automatic repeat requests running of mixing that one of multileaving/reception running is revised, and the automatic repeat requests running of the mixing of wherein revising is automatic repeat requests running of mixing of deriving or a variation that mixes automatic repeat requests running.When user side participated in being set coordination multileaving/receptions to user side and being operated by network terminal, the automatic repeat requests of the mixing of network terminal setting and modifying operated to user side.Then, according to the automatic repeat requests running of the mixing of revising, the transmission or that network terminal or user side are carried out an automatic repeat requests program of mixing (as at up link or down link) receives.In addition, user side is also carried out transmission or the reception that mixes automatic repeat requests program according to this.That is to say that network terminal can be revised the automatic repeat requests running of the mixing that is used for network terminal and user side, make the cooperation sub-district of network terminal have the time enough exchange to coordinate multileaving/needed necessary information of reception running.In other words, coordinating multileaving/reception running can use complete information to operate.Therefore, but coordinate multileaving/receptions and operate normal operation to improve signal quality and/or to alleviate interference.
Be noted that the spirit of flow process 40 is that network terminal (like the Serving cell of user side) modification one mixes automatic repeat requests running, operate the required coordination that necessary information was produced and postpone to hold exchange coordination multileaving/reception.The implementation of flow process 40 is not then limit to some extent.User side is also carried out the flow process of a correspondence, and it is corresponding to flow process 40.The automatic repeat requests running of the mixing of revising can be indicated a two-way time (the round-trip time that is used to coordinate the automatic repeat requests program of mixing that multileaving/receptions operate; (configurable) that RTT) can set, wherein be modified to two-way time one set two-way time (configured RTT), be extended for two-way time (extended RTT) of prolonging or be revised as the multiple of predefined two-way time from a predefined two-way time (predefined RTT).Further; User side or network terminal are according to two-way time, the two-way time of prolongation or the multiple of predefined two-way time set; Decision mixes an overtime (timeout) of automatic repeat requests program (as at up link or down link), is used for carrying out transmission or the reception that mixes automatic repeat requests program.In addition, the automatic repeat requests of the mixing of modification running indication is used for that the automatic repeat requests program of a plurality of parallel mixing (parallel HARQ processes) (as according to the automatic repeat requests program of the mixing of current definition) of a plurality of continuous transmission or reception (as before corresponding passback of needs) can set.Further, the automatic repeat requests running of the mixing of modification indicates a quantity M of the automatic repeat requests program of a plurality of parallel mixing that is used for a plurality of continuous transmission or reception to set.Therefore; After the quantity M of the automatic repeat requests program of a plurality of parallel mixing that is used for a plurality of continuous transmission or reception is set; User side or network terminal are carried out the transmission that mixes automatic repeat requests program or are received number one time, and number of times is greater than the number of a plurality of two-way times.For instance, be example to mix automatic repeat requests program H1～H8, wherein each mixes automatic repeat requests program and can further be divided into N the automatic repeat requests program of (as 3) parallel mixing.For instance, one mixes automatic repeat requests program HX can be divided into the automatic repeat requests program of parallel mixing HXa, HXb and HXc, and wherein the automatic repeat requests program of parallel mixing can be a new transmission or a re-transmission.To mix automatic repeat requests program H5, mix automatic repeat requests program H5 and can be split into the automatic repeat requests program of parallel mixing H5a, H5b and H5c.If the automatic repeat requests program of parallel mixing H5a can't suitably be handled (as according to the payment received affirmation/the payment received mistake is not returned or execution decoding when receiving), user side or network terminal can continue to handle the automatic repeat requests program H5b of mixing (promptly omiting the automatic repeat requests program of mix H5a earlier).In addition, corresponding to the transmission of the quantity of the automatic repeat requests program of a plurality of parallel mixing or a passback of reception, accumulate till being used to coordinate information exchange that multileaving/reception operates and being done.For instance, if the exchange message of cooperation minizone needs to accomplish 3 two-way times, user side or network terminal need to handle (as synchronously) in the automatic repeat requests program of a plurality of parallel mixing of 3 accumulations two-way time.
On the other hand; Network terminal can according to for support to coordinate cloth that multileaving/reception running exchange necessary a delay, transmission or receiving mode, resource distribution or scheduling that harmony messages produced, a passback mechanism and cooperation platform the evolved base station of inside/outside (as stride) build at least one, the automatic repeat requests of the mixing that decision is revised operates.A configuration, passback configuration, a scheduling allowance (scheduling grant) and a down link according to a configuration, transmission or the receiving mode of coordinating multileaving/reception running distribute in (downlink assignment) at least one, and user side is set the automatic repeat requests running of mixing of modification.
In simple terms, spirit of the present invention is to change the automatic repeat requests running of existing mixing (as prolonging two-way time or using the automatic repeat requests program of parallel mixing) and coordinates delay to hold.That is to say, when carrying out the automatic repeat requests of mixing of coordinating multileaving/reception, should allow change or mix automatic repeat requests running through the network terminal setting.Platform based on selected coordination multileaving/reception transfer mode and participation; Network terminal can determine the automatic repeat requests running of the corresponding mixing a plurality of two-way times or the automatic repeat requests program of parallel mixing of transmission in succession (as be used for); And with the configuration notification user side that determines, and can decide configuration according to the exchange of delay, system's output rating, coordination approach, complexity and/or message.
Therefore, according to above-mentioned explanation and flow process 40, when coordination multileaving/reception was set to user side and includes the network terminal of a plurality of cooperations sub-district, the cooperation sub-district can have the time enough exchange to coordinate multileaving/required necessary information of reception running.Thus, but coordinate multileaving/reception normal operation to improve signal quality and/or to alleviate interference.
Please refer to Fig. 5, Fig. 5 is the flow chart of the embodiment of the invention one flow process 50.Flow process 50 is used for the network terminal of Fig. 1, is used for handling coordination multileaving/reception running.Flow process 50 can be compiled into program code 214, and it comprises following steps:
Step 500: beginning.
Step 502: at least one transfer mode and the modulation and coded system (the modulation and coding scheme of multileaving/reception running coordinated in decision; MCS) at least one is used for corresponding to the transmission in succession or the reception that mix automatic repeat requests running in.
Step 504: according in this at least one transfer mode and modulation and the coded system at least one, carry out corresponding to the transmission that mixes automatic repeat requests running or be received in a user side in this wireless communication system.
Step 506: finish.
According to flow process 50; At least one transfer mode and the modulation and coded system (the modulation and coding scheme of multileaving/reception running coordinated in network terminal decision earlier; MCS), as Combined Treatment (JointProcessing, JP) and coordinated scheduling/wave beam forms (Coordinated Scheduling/Beamforming; CS/CB) etc. wherein at least one, be used for corresponding to the transmission in succession or the reception that mix automatic repeat requests running.That is to say, use the in succession transmission of a transfer mode, and use of the in succession transmission of another transfer mode in other in part.Then, network terminal can according at least one transfer mode and modulation and the coded system at least one, in a user side of wireless communication system, make user side carry out corresponding to the transmission or the reception that mix automatic repeat requests running.That is to say that at least one transfer mode and the modulation and the coded system of coordination multileaving/reception running can be adjusted, selects or switched to network terminal.In other words, transfer mode that is used for transmitting in succession and modulation and coded system can be different.Therefore, coordinate to postpone even the cooperation sub-district can produce when the exchange necessary information, coordinating multileaving/reception can normal operation under the situation of not coordinated delayed impact.
Be noted that; The spirit of flow process 50 is that the cooperation sub-district can produce coordination and postpone when the exchange necessary information; And network terminal can tune in a few transfer mode and modulation and the coded system at least one, makes coordination multileaving/be received in not receive to coordinate normal operation under the situation of delayed impact.The implementation of flow process 50 is not then limit to some extent.For instance, network terminal can determine to produce at least one transfer mode and the modulation and the coded system of the coordination multileaving of less delayed/reception running at least one, is used to mix the early stage transmission or the reception of automatic repeat requests running; At least one is used to mix the later stage transmission of automatic repeat requests running or receive at least one transfer mode of the coordination multileaving of the bigger delay of decision generation/reception running and modulation and the coded system.That is to say; Because the initial stage only has the information of part to be exchanged completion; At least one can be used in early stage transmission or reception at least one transfer mode of the coordination multileaving of generation less delayed/reception running and modulation and the coded system, to meet the demand of mixing automatic repeat requests running.Because the later stage, existing more complete information was exchanged completion, at least one can be used in later stage transmission or reception at least one transfer mode of the coordination multileaving of the bigger delay of generation/reception running and modulation and the coded system.Perhaps, at least one is used to mix the early stage transmission or the reception of automatic repeat requests running at least one transfer mode of the coordination multileaving of the less signaling of decision needs/reception running and modulation and the coded system; Decision needs at least one transfer mode and the modulation and the coded system of coordination multileaving/receptions running of more signaling at least one, and the later stage that is used to mix automatic repeat requests running transmits or reception.That is to say; Because the initial stage only has the information of part to be exchanged completion; At least one can be used in early stage transmission or reception at least one transfer mode of the coordination multileaving of the less signaling of needs/reception running and modulation and the coded system, to meet the demand of mixing automatic repeat requests running.Because the later stage, existing more complete information was exchanged completion, need at least one transfer mode and the modulation and the coded system of coordination multileaving/receptions running of more signaling at least one can be used in that the later stage transmits or reception.On the other hand, decision relates at least one transfer mode and the modulation and the coded system of the coordination multileaving of less base station in the network terminal/receptions running at least one, is used to mix early stage transmission or the reception that automatic repeat requests operates; Decision relates at least one transfer mode and the modulation and the coded system of the coordination multileaving of more base station in the network terminal/receptions running at least one, and the later stage that is used to mix automatic repeat requests running transmits or reception.That is to say; Because the initial stage only has the information of part to be exchanged completion; Relate to that at least one can be used in early stage transmission or reception at least one transfer mode and the modulation and the coded system of the coordination multileaving of less base station in the network terminal/reception running, to meet the demand of mixing automatic repeat requests running.Because the later stage, existing more complete information was exchanged completion, relate at least one transfer mode and the modulation and the coded system of coordination multileaving/receptions running of more base station in the network terminal at least one and can be used in that the later stage transmits or reception.
Therefore, according to above-mentioned explanation and flow process 50, coordinate multileaving/reception and dynamically operate the requirement that mixes automatic repeat requests running to meet, and can not use expired or wrong information to operate.Thus, but coordinate multileaving/reception normal operation to improve signal quality and/or to alleviate interference.
The step of aforesaid all flow processs (comprising proposed steps) can realize through device, and device can be hardware, firmware (be hardware unit and the combining of computer instruction and data, and computer instruction and data belonging to the read-only software on the hardware unit) or electronic system.Hardware can be simulation micro-computer circuit, digital micro-computer circuit, hybrid micro-computer circuit, microcomputer chip or silicon.Electronic system can be system single chip (system on chip, SOC), system in package (system in package, SiP), embedded computer (computer on module, COM) and communicator 20.
In sum, the present invention provides and revises the method for mixing automatic repeat requests running and adjustment coordination multileaving/reception running, makes coordination multileaving/reception not violate normal operation under the situation of mixing automatic repeat requests running.That is to say; Coordination originally postpones to be lower than the two-way time of the modification that mixes automatic repeat requests running; Perhaps a short coordination postpones to be lower than the two-way time of the script that mixes automatic repeat requests running, but makes coordination multileaving/reception normal operation to improve signal quality and/or to alleviate interference.
The above is merely the preferred embodiments of the present invention, and all equalizations of doing according to claims of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (24)
1. handle the automatic repeat requests of mixing (hybrid automatic repeat request for one kind; HARQ) method of running; A network terminal that is used for a wireless communication system; This mobile device support coordination multileaving/reception (this method includes for coordinated multipoint transmission/reception, CoMP) running:
Decision is used to coordinate the automatic repeat requests running of mixing (modified HARQ operation) that one of multileaving/reception running is revised, and wherein the automatic repeat requests running of the mixing of this modification is an automatic repeat requests running of mixing (derived HARQ operation) of deriving or a variation that mixes automatic repeat requests running;
The coordination multileaving/when reception operated, the automatic repeat requests of mixing of setting this modification operated to this mobile device when a mobile device in this wireless communication system is participated in; And
According to the automatic repeat requests running of the mixing of this modification, carry out one and mix the transmission or the reception of automatic repeat requests program (HARQ process).
2. the method for claim 1; Wherein the automatic repeat requests of the mixing of this modification running indication is used to coordinate a two-way time (round-trip time, (configurable) that RTT) can set of the automatic repeat requests program of mixing that multileaving/receptions operate.
3. method as claimed in claim 2, wherein be modified to this two-way time one set two-way time (configured RTT), be extended for the two-way time (extended RTT) that prolongs or a multiple that is modified to this predefined two-way time from a predefined two-way time (predefined RTT).
4. method as claimed in claim 3; Wherein this network terminal is according to the two-way time of this setting, the two-way time of this prolongation or this multiple of this predefined two-way time; Determine this to mix an overtime (timeout) of automatic repeat requests program, be used for carrying out this transmission that mixes automatic repeat requests program or reception.
5. the method for claim 1, wherein the automatic repeat requests running of the mixing of this modification indication is used for that the automatic repeat requests program of a plurality of parallel mixing (parallel HARQprocesses) of a plurality of continuous transmission or reception can set.
6. method as claimed in claim 5, wherein the automatic repeat requests running of the mixing of this modification indicates a quantity of the automatic repeat requests program of these a plurality of parallel mixing that is used for these a plurality of continuous transmission or reception to set.
7. method as claimed in claim 6; Wherein after this quantity of the automatic repeat requests program of these a plurality of parallel mixing that is used for these a plurality of continuous transmission or reception is set; This network terminal is carried out maybe number of this reception of this this transmission that mixes automatic repeat requests program, and this number of times is greater than the number of a plurality of two-way times.
8. method as claimed in claim 7 wherein corresponding to the transmission of this quantity of the automatic repeat requests program of these a plurality of parallel mixing or a passback of reception, accumulate till being used to coordinate information exchange that multileaving/reception operates and being done.
9. the method for claim 1; Wherein this network terminal according to for support to coordinate cloth that multileaving/receptions running exchange a delay, transmission or receiving mode, resource distribution or scheduling that harmony messages produced, a passback mechanism and the cooperation platform of necessity build at least one, determine the automatic repeat requests of mixing of this modification to operate.
10. the method for claim 1; Wherein a configuration, passback configuration, a scheduling allowance (scheduling grant) and the down link according to a configuration, transmission or the receiving mode of coordinating multileaving/reception running distributes in (downlink assignment) at least one, and this mobile device is set the automatic repeat requests running of mixing of this modification.
11. handle and mix automatic repeat requests (hybrid automatic repeat request for one kind; HARQ) method of running; Be used for a wireless communication system one mobile device; This mobile device support coordination multileaving/reception (this method includes for coordinated multipoint transmission/reception, CoMP) running:
When this mobile device is participated in coordinating multileaving/receptions and is operated; The automatic repeat requests of mixing that one network terminal of this wireless communication system is set a modification operates to this mobile device, and wherein the automatic repeat requests running of the mixing of this modification is an automatic repeat requests running of mixing (derived HARQoperation) of deriving or a variation that mixes automatic repeat requests running; And
According to the automatic repeat requests running of the mixing of this modification, carry out one and mix a transmission or a reception of automatic repeat requests program (HARQ process).
12. method as claimed in claim 11; Wherein the automatic repeat requests of the mixing of this modification running indication is used to coordinate that multileaving/receptions operate that this mixes a two-way time (round-trip time, (configurable) that RTT) can set of automatic repeat requests program.
13. method as claimed in claim 12, wherein be modified to this two-way time one set two-way time (configured RTT), be extended for the two-way time (extended RTT) that prolongs or a multiple that is modified to this predefined two-way time from a predefined two-way time (predefined RTT).
14. method as claimed in claim 13; Wherein this mobile device is according to the two-way time of this setting, the two-way time of this prolongation or this multiple of this predefined two-way time; Determine this to mix an overtime (timeout) of automatic repeat requests program, be used for carrying out this transmission that mixes automatic repeat requests program or reception.
15. method as claimed in claim 11, wherein the automatic repeat requests of the mixing of this modification running indication is used for that the automatic repeat requests program of a plurality of parallel mixing (parallelHARQ processes) of a plurality of continuous transmission or reception can set.
16. method as claimed in claim 15, wherein the automatic repeat requests running of the mixing of this modification indicates a quantity of the automatic repeat requests program of these a plurality of parallel mixing that is used for these a plurality of continuous transmission or reception to set.
17. method as claimed in claim 16; Wherein after this quantity of the automatic repeat requests program of these a plurality of parallel mixing that is used for these a plurality of continuous transmission or reception is set; This mobile device is carried out this and is mixed the transmission of automatic repeat requests program or receive number one time, and this number of times is greater than the number of a plurality of two-way times.
18. method as claimed in claim 17 wherein transmits a passback that maybe should receive corresponding to this of this quantity of the automatic repeat requests program of these a plurality of parallel mixing, accumulate till being used to coordinate information exchange that multileaving/reception operates and being done.
19. method as claimed in claim 11; Wherein this network terminal according to for support to coordinate cloth that multileaving/receptions running exchange a delay, transmission or receiving mode, resource distribution or scheduling that harmony messages produced, a passback mechanism and the cooperation platform of necessity build at least one, determine the automatic repeat requests of mixing of this modification to operate.
20. method as claimed in claim 11; Wherein a configuration, passback configuration, a scheduling allowance (scheduling grant) and the down link according to a configuration, transmission or the receiving mode of coordinating multileaving/reception running distributes in (downlink assignment) at least one, and this mobile device is set the automatic repeat requests running of mixing of this modification.
21. handle and coordinate multileaving/reception (coordinated multipoint transmission/reception for one kind; CoMP) method of running; A network terminal that is used for a wireless communication system, this network terminal support are coordinated multileaving/reception running, and this method includes:
At least one transfer mode and the modulation and coded system (the modulation and coding scheme of multileaving/reception running coordinated in decision; MCS) at least one is used for corresponding to the transmission in succession or the reception that mix automatic repeat requests running (HARQ operation) in; And
According in this at least one transfer mode and modulation and the coded system at least one, carry out corresponding to the transmission that mixes automatic repeat requests running or be received in a mobile device in this wireless communication system.
22. method as claimed in claim 21; Wherein in this at least one transfer mode and the modulation and the coded system of multileaving/receptions running at least one coordinated in decision, and this that is used for operating corresponding to the automatic repeat requests of mixing transmission or the step of reception in succession includes:
At least one is used to mix the early stage transmission or the reception of automatic repeat requests running in this at least one transfer mode of this coordination multileaving/reception running of decision generation less delayed and modulation and the coded system; And
Decision produce bigger delay this coordinate in this at least one transfer mode and the modulation and the coded system of multileaving/receptions running at least one, be used to mix the later stage transmission or the reception of automatic repeat requests running.
23. method as claimed in claim 21; Wherein in this at least one transfer mode and the modulation and the coded system of multileaving/receptions running at least one coordinated in decision, and this that is used for operating corresponding to the automatic repeat requests of mixing transmission or the step of reception in succession includes:
At least one is used to mix the early stage transmission or the reception of automatic repeat requests running in this at least one transfer mode of this coordination multileaving/reception running of the less signaling of decision needs and modulation and the coded system; And
Decision need more signaling this coordinate in this at least one transfer mode and the modulation and the coded system of multileaving/receptions running at least one, be used to mix the later stage transmission or the reception of automatic repeat requests running.
24. method as claimed in claim 21; Wherein in this at least one transfer mode and the modulation and the coded system of multileaving/receptions running at least one coordinated in decision, and this that is used for operating corresponding to the automatic repeat requests of mixing transmission or the step of reception in succession includes:
Decision relates in this at least one transfer mode and the modulation and the coded system of the coordination multileaving of less base station in this network terminal (base stations)/receptions running at least one, is used to mix early stage transmission or the reception that automatic repeat requests operates; And
Decision relates in this at least one transfer mode and the modulation and the coded system of the coordination multileaving of more base station in this network terminal/receptions running at least one, is used to mix the later stage transmission or the reception of automatic repeat requests running.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201161433277P | 2011-01-17 | 2011-01-17 | |
| US61/433,277 | 2011-01-17 | ||
| US13/351,244 | 2012-01-17 | ||
| US13/351,244 US20120182918A1 (en) | 2011-01-17 | 2012-01-17 | Method of Handling Latency Impact on CoMP HARQ and Feedback Operation and Related Communication Device |
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| CN102594532A true CN102594532A (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100153633A Pending CN102594532A (en) | 2011-01-17 | 2012-01-17 | Method of handling latency impact on CoMP HARQ and feedback operation and related device |
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