CN104521281A - TTI switching method, base station and user equipment - Google Patents

Abstract

Disclosed are a TTI switching method, a base station and a user equipment. The TTI switching method comprises: a user equipment receiving first configuration information corresponding to a first TTI and second configuration information corresponding to a second TTI; the user equipment receiving switching instruction information sent by a base station; the user equipment switching a current TTI to a target TTI corresponding to the switching instruction information, wherein the current TTI is one of the first TTI and the second TTI, and the target TTI is the other of the first TTI and the second TTI; and the user equipment sending data to the base station at the target TTI. By adopting the above-mentioned technical solution, the TTI switching is made to be in time and the time delay of the TTI switching is reduced, thereby avoiding the data loss or call drop.

Description

A kind of TTI changing method, base station and subscriber equipment

Technical field

The present invention relates to communication technical field, particularly a kind of TTI changing method, base station and subscriber equipment.

Background technology

Along with the develop rapidly of the communication technology, WCDMA(Wideband Code Division MultipleAccess, Wideband Code Division Multiple Access (WCDMA)) as one of the mainstream technology of 3-G (Generation Three mobile communication system), obtain investigation and application widely in the world.At 3GPP(3rd Generation Partnership Project, third generation Partnership Program) introduce DCH channel in the Rel-99 version formulated, be called R99 DCH, the covering that R99 DCH channel has had, but less data rate can only be improved.The Rel-6 version formulated at 3GPP introduces HSUPA(High-Speed Uplink Packet Access, High Speed Uplink Packet accesses) technology, the transmission channel introduced in HSUPA is E-DCH (Enhanced Dedicated Channel, up enhancing).E-DCH comprises two kinds of transmission intercals (Transmission Time Interval, TTI) type, 2ms TTI and 10ms TTI, and wherein 2ms TTI can provide high message transmission rate and little propagation delay time; 10msTTI can provide better covering.Therefore when subscriber equipment (User Equipment, UE) moves to cell edge from center of housing estate in order to obtain better covering, just need to be switched to 10ms TTI from 2ms TTI; Accordingly, when UE moves to center of housing estate from cell edge, in order to obtain higher peak rate, just need to be switched to 2ms TTI from 10ms TTI.

In addition, the covering of R99 DCH is greater than E-DCH 10msTTI, so when UE moves to cell edge, even if UE is current use E-DCH 10msTTI, likely covers and still has problems, and needs UE to be switched to TTI corresponding to DCH from E-DCH 10msTTI.

In the prior art, E-DCH TTI switching comprises two aspects: the execution flow process covering measurement and E-DCH TTI switching.

First be cover to measure, UPH is passed through SI(Scheduling Information by UE, schedule information) report base station, wherein UPH(UE transmission power headroom, UE transmitting power surplus), UPH is maximum UE transmitting power and DPCCH(Dedicated Physical Control Channel, Dedicated Physical Control Channel) ratio of power.Usual UPH lower than a thresholding, then thinks that covering limited or UE moves to cell edge, in order to obtain better covering, needs configuration 10ms TTI; UPH higher than a thresholding, then thinks that UE moves to center of housing estate, in order to obtain higher peak rate, needs to be configured to 2ms TTI.

Next is the execution flow process that TTI switches, in the prior art, the execution flow process that E-DCH TTI switches has synchronous reprovision and asynchronous reprovision two kinds of methods, synchronous reprovision refers to base station controller (Radio NetworkControl, RNC) respectively to the CFN(Connection FrameNumber that UE and base station configuration TTI switches, Connection Frame Number), UE is switched to target TTI type at the CFN specified, and base station resolves the E-DCH data of UE transmission at specified CFN according to target TTI type.

Please refer to shown in Fig. 1, be the flow chart of synchronous reprovision, this synchronous reallocating method comprises:

First, RNC determines that performing TTI switches, then RNC sends RRC(Radio ResourceControl to UE, wireless heterogeneous networks) signaling, such as RADIO BEARER RECONFIGURATIONREQUEST(radio bearer reprovision request) indicate UE to be switched to target TTI type, wherein, comprise activationary time (Activation time) in the request of radio bearer reprovision, activationary time such as can represent with CFN.RNC sends the wireless link reconfigured preparation of RADIO LINK RECONFIGURATION PREPARE(to base station (such as NodeB)) message, carry new configuration in this message, comprising TTI type; Then base station sends response message (RADIO LINK RECONFIGURATION Ready to RNC, wireless link reconfigured preliminary message), then RNC sends the wireless link reconfigured confirmation of Radio Link Reconfiguration Confirm(to base station again) message, wherein, activationary time is carried in wireless connections reprovision acknowledge message, such as also represent with CFN, this activationary time is used to indicate base station and resolves upstream data at the activationary time of specifying according to target TTI.Subsequently, UE sends the response of RADIO BEARER RECONFIGURATIONRESPONSE(radio bearer reprovision) message is to RNC.

And the flow process of asynchronous reprovision is similar with the flow process of synchronous reprovision, just do not specify activationary time in the message, UE after receiving reprovision request as far as possible early be switched to target TTI, base station is also same, the TTI parsing upstream data that utilization as far as possible is early new, idiographic flow does not repeat them here.

But, the present inventor finds in the process realizing the technical scheme in the embodiment of the present invention, in the process of existing switching TTI, RNC performs TTI by RRC signaling UE and switches, send new configuration information by wireless link reconfigured process to base station simultaneously, need at least to carry out 3 Signalling exchanges between RNC and base station, just can complete TTI to switch, so such handover mechanism can cause TTI to switch not in time, there is larger time delay, especially, when switching to 10msTTI from 2msTTI, postponing a meeting or conference time such and causing E-DCH loss of data even call drop.

Summary of the invention

The embodiment of the present invention provides a kind of TTI changing method, base station and subscriber equipment, in order to avoid the time delay when TTI switches comparatively large, switches the problem of the loss of data caused or call drop not in time.

A first aspect of the present invention, provides a kind of TTI changing method, comprising: subscriber equipment receives the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI; Described subscriber equipment receives the indication message that base station sends; Current TTI is switched to the target TTI corresponding with described indication message by described subscriber equipment, wherein, described current TTI be a described TTI and described 2nd TTI one of them, described target TTI is another of a described TTI and described 2nd TTI; Described subscriber equipment sends data to described base station with described target TTI.

In conjunction with first aspect, in the implementation that the first is possible, a described TTI is specially 2ms, and described 2nd TTI is specially 10ms.

In conjunction with first aspect or the first possible implementation, in the implementation that the second is possible, after described subscriber equipment receives the indication message of base station transmission, also comprise: described subscriber equipment carries the E-TFCI prohibitted the use and has been switched to described target TTI to indicate described subscriber equipment in E-DPCCH, wherein, the E-TFCI prohibitted the use described in is predefined configurable or reserved.

In conjunction with first aspect or the first possible implementation, in the implementation that the third is possible, after described subscriber equipment receives the indication message of base station transmission, also comprise: described subscriber equipment sends control information or data with the uplink scrambling code that described target TTI is corresponding, receive described indication message to indicate.

In conjunction with first aspect or the first possible implementation, in the 4th kind of possible implementation, after described subscriber equipment receives the indication message of base station transmission, also comprise: described subscriber equipment uses the domain information in DPCCH to receive described indication message to indicate described subscriber equipment.

In conjunction with first aspect or the first possible implementation, in the 5th kind of possible implementation, after described subscriber equipment receives the indication message of base station transmission, also comprise: described subscriber equipment sends confirmation to described base station in the maximum time after receiving described indication message, wherein, described maximum time is predefined or configurable.

In conjunction with in first aspect or the first possible implementation to any in the 5th kind of possible implementation, in the 7th kind of possible implementation, described subscriber equipment sends data to described base station with described target TTI, be specially: when described subscriber equipment sends data to described base station with a described TTI, described base station is sent data to a described TTI after the lower M subframe of described subscriber equipment after sending described confirmation, wherein M is predefined or configurable, M be more than or equal to zero integer; Or

When described subscriber equipment sends data to described base station with described 2nd TTI, described base station is sent data to described 2nd TTI after lower N number of CFN of described subscriber equipment after sending described confirmation, wherein N is predefined or configurable, N be more than or equal to zero integer.

In conjunction with first aspect or the first possible implementation to any one in the 5th kind of possible implementation, in the 6th kind of possible implementation, described subscriber equipment also comprises before sending data to described base station with described target TTI:

The data in harq buffer district removed by described subscriber equipment;

Described subscriber equipment resets up enhancing entity (MAC-i/is) entity, and TSN is set to 0.

In conjunction with first aspect or the first possible implementation to any one in the 6th kind of possible implementation, in the 7th kind of possible implementation, after described subscriber equipment receives the indication message of base station transmission, also comprise: described subscriber equipment, by the data in HARQ buffer memory, is configured to the MAC-i PDU that described target TTI is corresponding; Described subscriber equipment resets MAC-i/is entity, and TSN is set to 0.

In conjunction with first aspect or the first possible implementation to any one in the 6th kind of possible implementation, in the 8th kind of possible implementation, described subscriber equipment sends data to described base station with described target TTI, specifically comprises: described subscriber equipment is deleted and do not sent a MAC-i PDU corresponding to the TTI before successfully switching; The 2nd MAC-i PDU that target TTI described in described user device constructs is corresponding, wherein, in described 2nd MAC-i PDU and in a described MAC-i PDU, payload is identical; Described subscriber equipment sends the 2nd MAC-i PDU corresponding to described target TTI.

In conjunction with first aspect or the first possible implementation to any one in the 6th kind of possible implementation, in the tenth kind of possible implementation, when under a described TTI and under described 2nd TTI, when using identical TBS table, described subscriber equipment sends data to described base station with described target TTI, specifically comprises: the first data encoding not sending the TTI before successfully switching corresponding is the second data that described target TTI is corresponding in physical layer by described subscriber equipment; Described subscriber equipment sends described second data.

In conjunction with first aspect or the first possible implementation to any one in the tenth kind of possible implementation, in the implementation that the first is possible, before subscriber equipment receives first configuration information of a TTI and second configuration information of the 2nd TTI, described method also comprises: described subscriber equipment sends the capability indication information supporting that TTI switches.

In conjunction with first aspect or the first possible implementation to any one in the 11 kind of possible implementation, in the 12 kind of possible implementation, described subscriber equipment receives the indication message that base station sends, and is specially: described subscriber equipment receives the HS-SCCH order that base station sends.

In conjunction with first aspect or the first possible implementation to any one in the 12 kind of possible implementation, in the 13 kind of possible implementation, described first configuration information comprises an E-DCH MAC-d flow parameter corresponding to a described TTI, and described second configuration information comprises the 2nd E-DCH MAC-d flow parameter corresponding to described 2nd TTI.

In conjunction with the 13 kind of possible implementation, in the 14 kind of possible implementation, described first configuration information also comprises a DTX parameter corresponding to a described TTI and/or a DRX parameter, and described second configuration information also comprises the 2nd DTX parameter corresponding to described 2nd TTI and/or the 2nd DRX parameter.

Second aspect, the present invention also provides a kind of TTI changing method, comprising:

Described base station receives the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI; Described base station sends the indication message of TTI switching to subscriber equipment.

In conjunction with second aspect, in the implementation that the first is possible, a described TTI is specially 2ms, and described 2nd TTI is specially 10ms.

In conjunction with the first possible implementation of second aspect or second aspect, in the implementation that the second is possible, described base station to subscriber equipment send require that described subscriber equipment carries out the indication message of TTI switching after, described method also comprises: described base station receive described subscriber equipment send confirmation.

In conjunction with in the implementation that the second of second aspect is possible, in the implementation that the third is possible, described base station sends to subscriber equipment and requires that described subscriber equipment carries out the indication message of TTI switching, be specially: if within maximum time, described base station does not receive described confirmation, then resend described indication message, wherein, described maximum time is predefined or configurable.

In conjunction with the first possible implementation of second aspect or second aspect to any one in the third possible implementation, in the 4th kind of possible implementation, described base station to subscriber equipment send TTI switch indication message after, described method also comprises: described base station to radio network controller send up enhancing entity reset (MAC-i/is Reset) instruction or up enhancing entity reset (MAC-is Reset) instruction.

In conjunction with the first possible implementation of second aspect or second aspect to any one in the 4th kind of possible implementation, in the 5th kind of possible implementation, after described base station to send the indication message that TTI switches to described subscriber equipment, described method also comprises: described base station sends the target TTI after the switching of described subscriber equipment to radio network controller.

In conjunction with the first possible implementation of second aspect or second aspect to any one in the 5th kind of possible implementation, in the 6th kind of possible implementation, described base station has closes the mode of operation that TTI switches and the mode of operation of opening TTI switching, described base station sends the indication message of TTI switching to described subscriber equipment, be specially: be in the mode of operation of described unlatching TTI switching in described base station under, described base station sends the indication message of TTI switching to described subscriber equipment.

In conjunction with the 6th kind of possible implementation, in the 7th kind of possible implementation, be in the mode of operation of described closedown TTI switching in described base station under, described base station receives the indication information that radio network controller sends, and the mode of operation switching to described unlatching TTI to switch the mode of operation that described base station is switched by described closedown TTI.

In conjunction with the first possible implementation of second aspect or second aspect to any one in the 7th kind of possible implementation, in the 8th kind of possible implementation, before described base station receives the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI, described method also comprises: described base station sends the capability indication information supporting that TTI switches to radio network controller.

In conjunction with the first possible implementation of second aspect or second aspect to any one in the 8th kind of possible implementation, in the 9th kind of possible implementation, while described base station to send the indication message that TTI switches to described subscriber equipment or afterwards, described method also comprises: described base station sends indication information to wireless network control, to make described radio network controller send described indication information to non-serving base stations, switch to the target TTI after switching to make described non-serving base stations.

In conjunction with in implementation possible in the 9th, in the tenth kind of possible implementation, in described indication information, comprise the temporal information switching to described target TTI.

The third aspect, the invention provides a kind of subscriber equipment, comprising:

First receiving element, for receiving the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI; Second receiving element, for receiving the indication message that base station sends, and sends to switch unit by described indication message; Described switch unit, for receiving described indication message from described second receiving element, and current TTI is switched to the target TTI corresponding with described indication message, wherein, described current TTI be a described TTI and described 2nd TTI one of them, described target TTI is another of a described TTI and described 2nd TTI; First transmitting element, for sending data to described base station with described target TTI.

In conjunction with the third aspect, in the implementation that the first is possible, a described TTI is specially 2ms, and described 2nd TTI is specially 10ms.

In conjunction with the first possible implementation of the third aspect or the third aspect, in the implementation that the second is possible, described subscriber equipment also comprises: the second transmitting element, described target TTI has been switched to indicate described subscriber equipment for carrying the E-TFCI prohibitted the use in E-DPCCH, wherein, the E-TFCI prohibitted the use described in is predefined configurable or reserved.

In conjunction with the first possible implementation of the third aspect or the third aspect, in the implementation that the third is possible, described subscriber equipment also comprises: the second transmitting element, send control information or data for the uplink scrambling code corresponding with described target TTI, receive described indication message to indicate.

In conjunction with the first possible implementation of the third aspect or the third aspect, in the 4th kind of possible implementation, described subscriber equipment also comprises: the second transmitting element, has received described indication message for using the domain information in DPCCH to indicate described subscriber equipment.

In conjunction with the first possible implementation of the third aspect or the third aspect, in the 5th kind of possible implementation, described subscriber equipment also comprises: the second transmitting element, for sending confirmation in the maximum time after receiving described indication message to described base station, wherein, described maximum time is predefined or configurable.

In conjunction with the third aspect, in the 6th kind of possible implementation, described first transmitting element specifically for: when sending data to described base station with a described TTI, described base station is sent data to a described TTI after the lower M subframe of described first transmitting element after described second transmitting element sends described confirmation, wherein M is predefined or configurable, M be more than or equal to zero integer; Or

When sending data to described base station with described 2nd TTI, described base station is sent data to described 2nd TTI after lower N number of CFN of described first transmitting element after described second transmitting element sends described confirmation, wherein N is predefined or configurable, N be more than or equal to zero integer.

In conjunction with the first possible implementation of the third aspect or the third aspect to any one in the 6th kind of possible implementation, in the 7th kind of possible implementation, described subscriber equipment also comprises: processing unit, before sending data to described base station at described first transmitting element with described target TTI, remove the data in harq buffer district; Lay equal stress on and be set up row enhancing (MAC-i/is) entity, and TSN is set to 0.

In conjunction with the first possible implementation of the third aspect or the third aspect to any one in the 6th kind of possible implementation, in the 8th kind of possible implementation, described subscriber equipment also comprises: processing unit, for receive at described second receiving element described base station send indication message after, by the data in HARQ buffer memory, be configured to the MAC-i PDU that described target TTI is corresponding; And reset MAC-i/is entity, TSN is set to 0.

In conjunction with the first possible implementation of the third aspect or the third aspect to any one in the 6th kind of possible implementation, in the 9th kind of possible implementation, described first transmitting element specifically for: delete and do not send a MAC-i PDU corresponding to the TTI before successfully switching; Build the 2nd MAC-i PDU that described target TTI is corresponding, wherein, in described 2nd MAC-i PDU and in a described MAC-iPDU, payload is identical; And send the 2nd MAC-i PDU corresponding to described target TTI.

In conjunction with the first possible implementation of the third aspect or the third aspect to any one in the 6th kind of possible implementation, in the tenth kind of possible implementation, when under a described TTI and under described 2nd TTI, when using identical TBS table, described subscriber equipment also comprises: coding unit, for being the second data that described 2nd TTI is corresponding in physical layer by not sending the first data encoding that successfully a described TTI is corresponding, and described second data are sent to described first transmitting element; Described first transmitting element specifically for receiving described second data from described coding unit, and sends described second data.

In conjunction with the first possible implementation of the third aspect or the third aspect to any one in the tenth kind of possible implementation, in the 11 kind of possible implementation, described subscriber equipment also comprises: the 3rd transmitting element, for sending the capability indication information supporting that TTI switches.

In conjunction with the first possible implementation of the third aspect or the third aspect to any one in the 11 kind of possible implementation, in the 12 kind of possible implementation, the HS-SCCH order that described second receiving element sends specifically for receiving base station.

In conjunction with the first possible implementation of the third aspect or the third aspect to any one in the 12 kind of possible implementation, in the 13 kind of possible implementation, described first configuration information comprises an E-DCH MAC-d flow parameter corresponding to a described TTI, and described second configuration information comprises the 2nd E-DCH MAC-d flow parameter corresponding to described 2nd TTI.

In conjunction with in the 13 kind of possible implementation, in the 14 kind of possible implementation, described first configuration information also comprises a DTX parameter corresponding to a described TTI and/or a DRX parameter, and described second configuration information also comprises the 2nd DTX parameter corresponding to described 2nd TTI and/or the 2nd DRX parameter.

Fourth aspect, the present invention also provides a kind of subscriber equipment, comprising:

Receiver, for receiving the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI; And receive the indication message of base station transmission; Processor, for based on described indication message, current TTI is switched to the target TTI corresponding with described indication message, wherein, described current TTI be a described TTI and described 2nd TTI one of them, described target TTI is another of a described TTI and described 2nd TTI; Transmitter, for sending data to described base station with described target TTI.

In conjunction with fourth aspect, in the implementation that the first is possible, a described TTI is specially 2ms, and described 2nd TTI is specially 10ms.

In conjunction with the first possible implementation of fourth aspect or fourth aspect, in the mode of the possible realization of the second, described transmitter has been switched to described target TTI specifically for carrying the E-TFCI prohibitted the use in E-DPCCH to indicate described subscriber equipment, wherein, the E-TFCI prohibitted the use described in is predefined configurable or reserved.

In conjunction with the first possible implementation of fourth aspect or fourth aspect, in the implementation that the third is possible, described transmitter sends control information or data specifically for the uplink scrambling code corresponding with described target TTI, receives described indication message to indicate.

In conjunction with the first possible implementation of fourth aspect or fourth aspect, in the 4th kind of possible implementation, described transmitter indicates described subscriber equipment to receive described indication message specifically for using the domain information in DPCCH.

In conjunction with the first possible implementation of fourth aspect or fourth aspect, in the 5th kind of possible implementation, described transmitter is specifically for sending confirmation to described base station in the maximum time after receiving described indication message, wherein, described maximum time is predefined or configurable.

In conjunction with the first possible implementation of fourth aspect or fourth aspect to any one in the 5th kind of possible implementation, in the 6th kind of possible implementation, described transmitter also for: when sending data to described base station with a described TTI, described base station is sent data to a described TTI after lower M subframe after sending described confirmation, wherein M is predefined or configurable, M be more than or equal to zero integer; Or

When sending data to described base station with described 2nd TTI, send data to described base station with described 2nd TTI after the lower N number of CFN after sending described confirmation, wherein N is predefined or configurable, N be more than or equal to zero integer.

In conjunction with the first possible implementation of fourth aspect or fourth aspect to any one in the 6th kind of possible implementation, in the 7th kind of possible implementation, described processor is also for removing the data in harq buffer district; Lay equal stress on and be set up row enhancing (MAC-i/is) entity, TSN is set to 0.

In conjunction with the first possible implementation of fourth aspect or fourth aspect to any one in the 6th kind of possible implementation, in the 8th kind of possible implementation, described processor also for by the data in HARQ buffer memory, is configured to the MAC-i PDU that described target TTI is corresponding; Reset MAC-i/is entity, TSN is set to 0.

In conjunction with the first possible implementation of fourth aspect or fourth aspect to any one in the 6th kind of possible implementation, in the 9th kind of possible implementation, described processor does not also send a MAC-i PDU corresponding to the TTI before successfully switching for deleting; Build the 2nd MAC-i PDU that described target TTI is corresponding, wherein, in described 2nd MAC-i PDU and in a described MAC-i PDU, payload is identical; Described transmitter is for sending the 2nd MAC-i PDU corresponding to described target TTI.

In conjunction with the first possible implementation of fourth aspect or fourth aspect to any one in the 6th kind of possible implementation, in the tenth kind of possible implementation, described subscriber equipment also comprises encoder, for being the second data that described target TTI is corresponding in physical layer by the first data encoding not sending the TTI before successfully switching corresponding; Described transmitter is for sending described second data.

In conjunction with the first possible implementation of fourth aspect or fourth aspect to any one in the tenth kind of possible implementation, in the 11 kind of possible implementation, described transmitter is also for sending the capability indication information supporting that TTI switches.

In conjunction with the first possible implementation of fourth aspect or fourth aspect to any one in the 11 kind of possible implementation, in the 12 kind of possible implementation, described receiver is also for receiving the HS-SCCH order that base station sends.

In conjunction with the first possible implementation of fourth aspect or fourth aspect to any one in the 12 kind of possible implementation, in the 13 kind of possible implementation, described first configuration information comprises an E-DCH MAC-d flow parameter corresponding to a described TTI, and described second configuration information comprises the 2nd E-DCH MAC-d flow parameter corresponding to described 2nd TTI.

In conjunction with in the 13 kind of possible implementation of fourth aspect, in the 14 kind of possible implementation, described first configuration information also comprises a DTX parameter corresponding to a described TTI and/or a DRX parameter, and described second configuration information also comprises the 2nd DTX parameter corresponding to described 2nd TTI and/or the 2nd DRX parameter.

5th aspect, the invention provides a kind of base station, comprising:

First receiving element, for receiving the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI; First transmitting element, for sending the indication message that TTI switches to subscriber equipment.

In conjunction with the 5th aspect, in the implementation that the first is possible, a described TTI is specially 2ms, and described 2nd TTI is specially 10ms.

In conjunction with the first possible implementation of the 5th aspect or the 5th aspect, in the implementation that the second is possible, described base station also comprises: the second receiving element, for receiving the confirmation that described subscriber equipment sends.

In conjunction with the implementation that the second of the 5th aspect is possible, in the implementation that the third is possible, if the first transmitting element is concrete also within maximum time, described base station does not receive described confirmation, then resend described indication message, wherein, described maximum time is predefined or configurable.

In conjunction with any one to the third possible implementation of the first possible implementation of the 5th aspect or the 5th aspect, in the 4th kind of possible implementation, described base station also comprises: the second transmitting element, resets (MAC-i/is Reset) instruction or up enhancing entity replacement (MAC-is Reset) instruction for sending up enhancing entity to radio network controller.

In conjunction with any one in the possible implementation of the first possible implementation to the 4th kind of the 5th aspect or the 5th aspect, in the 5th kind of possible implementation, described base station also comprises: the 3rd transmitting element, for send described subscriber equipment switching after target TTI to radio network controller.

In conjunction with any one in the possible implementation of the first possible implementation to the 5th kind of the 5th aspect or the 5th aspect, in the 6th kind of possible implementation, described base station has closes the mode of operation that TTI switches and the mode of operation of opening TTI switching, described first transmitting element, specifically under the mode of operation being in described unlatching TTI switching in described base station, sends the indication message of TTI switching to described subscriber equipment.

In conjunction with the 6th kind of possible implementation of the 5th aspect, in the 7th kind of possible implementation, described base station also comprises: the 3rd receiving element, for be in described base station described closedown TTI switch mode of operation under, receive the indication information that described radio network controller sends, and described indication information is sent to switch unit; Described switch unit, for the mode of operation switching to described unlatching TTI to switch the mode of operation that described base station is switched by described closedown TTI based on described indication information.

In conjunction with any one in the possible implementation of the first possible implementation to the 7th kind of the 5th aspect or the 5th aspect, in the 8th kind of possible implementation, described base station also comprises: the 4th transmitting element, for sending the capability indication information supporting that TTI switches to radio network controller.

In conjunction with the first possible implementation of the 5th aspect or the 5th aspect to any one in the possible implementation of the kind, in the 9th kind of possible implementation, described base station also comprises: the 5th transmitting element, for sending indication information to wireless network control, to make described radio network controller send described indication information to non-serving base stations, switch to the target TTI after switching to make described non-serving base stations.

In conjunction with the 9th kind of possible implementation of the 5th aspect, in the tenth kind of possible implementation, in described indication information, comprise the temporal information switching to described target TTI.

6th aspect, the invention provides a kind of base station, comprising:

Receiver, for receiving the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI; Transmitter, for sending the indication message that TTI switches to subscriber equipment.

In conjunction with the 6th aspect, in the implementation that the first is possible, a described TTI is specially 2ms, and described 2nd TTI is specially 10ms.

In conjunction with the first possible implementation of the 6th aspect or the 6th aspect, in the implementation that the second is possible, described receiver also for: receive the confirmation that described subscriber equipment sends.

In conjunction with the implementation that the second of the 6th aspect is possible, in the implementation that the third is possible, described transmitter also for: if within maximum time, described base station does not receive described confirmation, then resend described indication message, wherein, described maximum time is predefined or configurable.

In conjunction with any one to the third possible implementation of the first possible implementation of the 6th aspect or the 6th aspect, in the 4th kind of possible implementation, described transmitter also for: to radio network controller send up enhancing entity reset (MAC-i/is Reset) indicate up enhancing entity reset (MAC-is Reset) instruction.

In conjunction with any one in the possible implementation of the first possible implementation to the 4th kind of the 6th aspect or the 6th aspect, in the 5th kind of possible implementation, described transmitter also for: send the target TTI after the switching of described subscriber equipment to radio network controller.

In conjunction with any one in the possible implementation of the first possible implementation to the 5th kind of the 6th aspect or the 6th aspect, in the 6th kind of possible implementation, described base station has closes the mode of operation that TTI switches and the mode of operation of opening TTI switching, described transmitter specifically for: under described base station is in the mode of operation that described unlatching TTI switches, send to described subscriber equipment the indication message that TTI switches.

In conjunction with the 6th kind of possible implementation of the 6th aspect, in the 7th kind of possible implementation, described receiver is used for, under described base station is in the mode of operation of described closedown TTI switching, receiving the indication information that radio network controller sends; Described base station also comprises processor, for: the mode of operation switching to described unlatching TTI to switch the mode of operation that described base station is switched by described closedown TTI.

In conjunction with any one in the possible implementation of the first possible implementation to the 7th kind of the 6th aspect or the 6th aspect, in the 8th kind of possible implementation, described transmitter is used for sending to radio network controller the capability indication information supporting that TTI switches.

In conjunction with any one in the possible implementation of the first possible implementation to the 8th kind of the 6th aspect or the 6th aspect, in the 9th kind of possible implementation, described transmitter is used for sending indication information to wireless network control, to make described radio network controller send described indication information to non-serving base stations, switch to the target TTI after switching to make described non-serving base stations.

In conjunction with the 9th kind of possible implementation of the 6th aspect, in the tenth kind of possible implementation, in described indication information, comprise the temporal information switching to described target TTI.

Beneficial effect of the present invention is as follows:

In the embodiment of the present invention, a TTI two TTI different with a TTI is furnished with in advance at subscriber equipment end, and the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI, as long as after the indication message receiving base station transmission, just can directly switch the current TTI of subscriber equipment, and switch to the target TTI corresponding with indication message, and send data to base station with target TTI, so do not need in the process switched, RNC sends new configuration information to base station again, so also carry out repeatedly Signalling exchange with regard to not needing between RNC and base station, so the TTI handoff procedure in the present embodiment is timely, time delay is less, so avoid when 2msTTI switches to 10msTTI, E-DCH loss of data or call drop, simultaneously because the switching of 10msTTI to 2msTTI can be performed in time, so can peak rate be improved.

Accompanying drawing explanation

Fig. 1 is the method flow diagram that TTI of the prior art switches;

Fig. 2 is the flow chart of the TTI changing method of UE side in the embodiment of the present invention;

Fig. 3 is the schematic diagram sending data in the embodiment of the present invention with target TTI;

Fig. 4 is the flow chart of the TTI changing method of base station side in the embodiment of the present invention;

Fig. 5 is the exchange method flow chart that the TTI in the embodiment of the present invention switches;

Fig. 6 is the functional block diagram of the subscriber equipment in the embodiment of the present invention;

Fig. 7 is the hard-wired example concept figure of the subscriber equipment in the embodiment of the present invention;

Fig. 8 is the functional block diagram of the base station in the embodiment of the present invention;

Fig. 9 is the hard-wired example concept figure of the base station in the embodiment of the present invention.

Embodiment

The embodiment of the present invention provides a kind of TTI changing method, base station and subscriber equipment, two TTI different from a current TTI is furnished with all in advance in subscriber equipment end and base station end, so do not need in the process switched, RNC sends new configuration information to base station again, so also carry out repeatedly Signalling exchange with regard to not needing between RNC and base station, as long as so switched by base station triggers TTI in the present embodiment, so the TTI handoff procedure in the present embodiment is timely, time delay is less, so avoid when 2msTTI switches to 10msTTI, E-DCH loss of data or call drop, simultaneously because the switching of 10msTTI to 2msTTI can be performed in time, so can peak rate be improved.

For making the object of the embodiment of the present invention, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.

In conjunction with subscriber equipment and/or base station and/or base station controller, various aspect is described herein.

Subscriber equipment, can be wireless terminal also can be catv terminal, wireless terminal can be point to the equipment that user provides voice and/or data connectivity, has the portable equipment of wireless connecting function or is connected to other treatment facilities of radio modem.Wireless terminal can through wireless access network (such as, RAN, Radio Access Network) communicate with one or more core net, wireless terminal can be mobile terminal, as mobile phone (or being called " honeycomb " phone) and the computer with mobile terminal, such as, can be portable, pocket, hand-hold type, built-in computer or vehicle-mounted mobile device, they and wireless access network exchange language and/or data.Such as, Personal Communications Services (PCS, Personal CommunicationService) phone, cordless telephone, Session Initiation Protocol phone, wireless local loop (WLL, Wireless Local Loop) stand, the equipment such as personal digital assistant (PDA, Personal Digital Assistant).Wireless terminal also can be called system, subscri er unit (Subscriber Unit), subscriber station (SubscriberStation), mobile radio station (Mobile Station), travelling carriage (Mobile), distant station (Remote Station), access point (Access Point), remote terminal (Remote Terminal), access terminal (Access Terminal), user terminal (User Terminal), user agent (User Agent), subscriber equipment (User Device) or subscriber's installation (User Equipment).

Base station (such as, access point) can to refer in Access Network the equipment by one or more sector and wireless terminal communications on aloft interface.Base station can be used for the air frame received and IP to divide into groups mutually to change, and as the router between wireless terminal and the remainder of Access Network, wherein the remainder of Access Network can comprise Internet protocol (IP) network.Base station also tunable to the attribute management of air interface.Such as, base station can be the base station (BTS, Base Transceiver Station) in CDMA, also can be the base station (NodeB) in WCDMA, can also be the evolved base station (NodeB or eNB or e-NodeB, evolutional Node B) in LTE, the application limit.

Base station controller can be the base station controller (BSC, base station controller) in CDMA, and also can be the radio network controller (RNC, Radio Network Controller) in WCDMA, the application limit.

In addition, term "and/or" herein, being only a kind of incidence relation describing affiliated partner, can there are three kinds of relations in expression, and such as, A and/or B, can represent: individualism A, exists A and B simultaneously, these three kinds of situations of individualism B.In addition, character "/" herein, general expression forward-backward correlation is to the relation liking a kind of "or".

Below in conjunction with accompanying drawing, the preferred embodiment of the present invention is described in detail.

Embodiment one

The present embodiment stands in UE side present invention is described, and please refer to shown in Fig. 2, the embodiment of the present invention provides a kind of TTI changing method, and the method comprises the steps:

Step 101: subscriber equipment receives the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI.

Wherein, a TTI is specially 2msTTI, and described 2nd TTI is specially 10msTTI, and namely a TTI and the 2nd TTI is the TTI under E-DCH.

But in another embodiment, a TTI and the 2nd TTI can also belong to the TTI in different protocol versions, and such as a TTI is the 10msTTI in E-DCH, and the 2nd TTI is the 20msTTI in R99 DCH.

In specific implementation process, step 101 is specially: subscriber equipment receives the first configuration information corresponding to a TTI that RNC sends and the second configuration information corresponding to the 2nd TTI.Wherein, RNC sends a TTI and the 2nd TTI resource allocation information corresponding respectively by special RRC signaling to UE.It should be noted that, the first configuration information and the second configuration information can also be predefined, namely do not need RNC to configure, the method that prioritizing selection RNC configures, so the present invention is configured to example introduction with RNC.

In practice, the process that RNC sends the first configuration information and the second configuration information to UE can be simultaneously, may not be simultaneously, accordingly, in a step 101, UE receives configuration information corresponding to a TTI and receives the second configuration information corresponding to the 2nd TTI can be simultaneously, may not be simultaneously.

First, suppose that a TTI is 2msTTI, the 2nd TTI is 10msTTI, such as, after Initial R RC connection establishment, RNC just prewired 10msTTI information (supposing that the current TTI of UE is 2msTTI here) to UE.

Again such as, RNC carrys out the prewired 10msTTI information of decision-making (supposing that the current TTI of UE is 2msTTI here) to UE based on 6a event, wherein, 6a event refers to that the total transmitting power of UE is greater than default threshold value, so UE just reports total transmitting power to RNC, and so RNC just can need prewired 10msTTI information to UE according to 6a event decision-making.

In a further embodiment, when RNC sends the first configuration information and the second configuration information at the same time to UE, also specify the TTI type of the current use of UE, under normal conditions, in order to prevent call drop, RNC can specify the TTI of the current use of UE to be 10msTTI simultaneously.

Further, RNC send the first configuration information and the second configuration information in, comprise a set of enhancing dedicated channel Media access contorl stream (E-DCH MAC-d flow) parameter that each TTI is corresponding respectively, such as, dedicated channel MAC-d traffic identifier is strengthened based on E-DCH MAC-d flow Identity() the E-DCHMAC-d flow maximum number of retransmissions(that configures strengthens dedicated channel MAC-d and flows maximum retransmission), ACK(just confirms power bias) NACK(negative acknowledgment power bias) or the power bias of E-DPCCH/DPCCH power offset(data channel and control channel), the E-DCH MAC-d flow parameter that one TTI is corresponding, the second configuration information comprises the 2nd E-DCH MAC-d flow parameter corresponding to the 2nd TTI, further, can also comprise other parameters, such as, be that a TTI and the 2nd TTI configure a set of DTX(Discontinuous Transmission, discontinuous transmission respectively) parameter and/or DRX(Discontinuous Reception, discontinuous reception) parameter, the application is not construed as limiting.

Preferably, in another embodiment, before step 101, UE also reports the capability indication information supporting that TTI switches to RNC, such as UE can complete in RRC CONNECTION SETUP COMPLETE(RRC connection establishment) report this capability indication information in message.

Step 102: subscriber equipment receives the indication message that base station sends.

Preferably, base station performs TTI by physics signaling UE to switch, such as, notify that UE performs TTI and switches by HS-SCCHorder.Certainly, in actual applications, also indication message can be sent by other physics signaling or non-physical signaling to UE.About base station, how when decision-making sends indication message, and send which type of indication message, and how to utilize High-Speed Shared Control Channel instruction (HS-SCCH order) to send indication message, this part, by when the embodiment of subsequent descriptions base station side, is described in detail.

It should be noted that, this switching instruction may be used for instruction UE and switches between R99 DCH and E-DCH, but the present invention is to switch to example introduction between E-DCH TTI.

Step 103: current TTI is switched to the target TTI corresponding with indication message by subscriber equipment, wherein, target TTI is a TTI or the 2nd TTI.If namely the TTI of subscriber equipment is a TTI before the handover, so target TTI is the 2nd TTI, and if before the handover the TTI of subscriber equipment be the 2nd TTI, so target TTI is a TTI.

Step 104: subscriber equipment sends data to base station with target TTI.

Such as, suppose that a TTI is 2msTTI, the 2nd TTI is 10msTTI, and before switching, the TTI of subscriber equipment is 2msTTI, and so target TTI is just 10msTTI, and so step 104 is specially, and sends upstream data to base station with 10msTTI.

In actual applications, step 104 specifically has multiple example, and this part will be described in detail later.

Can be found out by above-mentioned steps, because first subscriber equipment can receive the configuration information that different TTI divides other correspondence, then after the indication message receiving base station transmission, just can directly switch the current TTI of subscriber equipment, and switch to the target TTI corresponding with indication message, and send data to base station with target TTI, so do not need in the process switched, RNC sends new configuration information to base station again, so also carry out repeatedly Signalling exchange with regard to not needing between RNC and base station, so the TTI handoff procedure in the present embodiment is timely, time delay is less, so avoid when 2msTTI switches to 10msTTI, E-DCH loss of data or call drop, simultaneously because the switching of 10msTTI to 2msTTI can be performed in time, so can peak rate be improved.

In specific implementation process, after step 102, subscriber equipment does not send confirmation to base station, by retransmitting indication message, base station ensures that subscriber equipment receives, specifically by arranging time period or the sending times of repeating transmission, such as continuous retransmission indication message in 1s, or continuous retransmission 3 times.And subscriber equipment is after receiving indication message, just and then perform step 103 and step 104, accordingly, base station under distribute indication message after the E-DCH upstream data that just uses two cover resources to use 2msTTI and 10msTTI to resolve subscriber equipment respectively to send.

But in another embodiment, after step 102, before step 104, this changing method also comprises step 105: subscriber equipment sends confirmation to base station, has received or do not receive indication message with signals base subscriber equipment.

Wherein, the first execution mode of step 105, subscriber equipment feeding back ACK (Acknowledgment just confirms) information or NACK(Negative Acknowledge negative acknowledgment) information is to base station.If correctly receive indication message, so subscriber equipment just sends ACK information to base station, if correctly do not receive indication message, so subscriber equipment just sends nack message to base station.

The second execution mode of step 105, subscriber equipment carries the E-TFCI(E-DCH Transport Format Combination Indicator prohibitted the use in E-DPCCH, strengthen dedicated transmission channel form and merge instruction) carry out equipment for indicating user and be switched to target TTI, wherein, the E-TFCI prohibitted the use is predefined or configurable.Such as can be configured by RNC, such as use 2ms TTI E-DCH TBS(Transport Block Size, transmission block size) E-TFCI prohibitted the use in table.This E-TFCI is reserved for another example, can not be used for normal transfer of data, is only used to indicate user and correctly receives switching instruction.

The third execution mode of step 105, subscriber equipment is with UL(Uplink corresponding to target TTI, up) scrambler sends data or control information, correctly receives indication message to indicate.Such as when RNC is to prewired first configuration information of subscriber equipment and the second configuration information, be respectively two TTI and configure two scrambler SC1 and SC2; Switch to example with 2msTTI to 10msTTI, after UE correctly receives HS-SCCH order, send up DPCCH with SC2, after base station detects, use target TTI to resolve E-DCH.Concerning serving BS, under distribute HS-SCCH order after just need to use respectively two cover resources to attempt resolving up DPCCH according to SC1 and SC2 respectively.

4th kind of execution mode of step 105, subscriber equipment uses the domain information in DPCCH to carry out equipment for indicating user and correctly receives indication message.Such as can use FBI(feedback information, feedback information) corresponding bit indicates.

In addition, no matter step 105 sends confirmation in which kind of mode in above-mentioned four kinds of execution modes to base station, subscriber equipment sends confirmation to base station in the maximum time after receiving described indication message, and wherein, maximum time is predefined or configurable.Such as RNC to a maximum time of user device configuration, so subscriber equipment just within this maximum time to base station feedback confirmation.

Next, the specific implementation process of step 104 will be described in detail, first, from the opportunity that step 104 performs, such as, if target TTI is a TTI, when being 2msTTI, when subscriber equipment sends data to base station with a TTI, send data to base station with a TTI after the lower M subframe of subscriber equipment after sending confirmation, wherein M is predefined or configurable, M be more than or equal to zero integer; And if target TTI is the 2nd TTI, such as during 10msTTI, when subscriber equipment sends data to base station with the 2nd TTI, base station is sent data to the 2nd TTI after lower N number of CFN of subscriber equipment after sending confirmation, wherein N is predefined or configurable, N be more than or equal to zero integer.

Wherein, M and N is configurable, such as by RNC to user device configuration, be predefined as in the protocol fixing value.

Secondly, from the difference of the processing mode to user face, step 104 specifically has numerous embodiments.

Wherein, the first execution mode of step 104, first before step 104, HARQ(Hybrid Automatic Repeat Request removed by subscriber equipment, hybrid automatic repeat-request) data in buffering area; Subscriber equipment resets up enhancing (MAC-i/is) entity.Wherein, reset MAC-i/is entity, concrete example by the variable TSN(Transmission Sequence Number of MAC layer, transmits Sequence Number in this way) reset to 0.Simultaneously, because data are blanked in MAC layer, so RLC(Radio LinkControl of user equipment side, wireless spread-spectrum technology) layer just do not receive network side send RLC ACK, so will rebuild up enhancing protocol Data Unit (MAC-i PDU) in RLC buffering area, and retransmit MAC-is/MAC-i PDU, namely perform step 104.

Simultaneously in order to avoid RNC side MAC-is occurs out of order according to TSN sequence, need at E-DCH FP(Frame Protocol, Frame Protocol) or signaling in carry up enhancing entity reset (MAC-is Reset) instruction or up enhancing entity reset (MAC-i/is Reset) instruction.

The second execution mode of step 104, subscriber equipment is deleted and is not sent the first up enhancing protocol Data Unit (MAC-i PDU) corresponding to the TTI before successfully switching; The 2nd MAC-i PDU that user device constructs target TTI is corresponding, wherein, in the 2nd MAC-i PDU and in a MAC-i PDU, payload is identical; Subscriber equipment sends the 2nd MAC-i PDU corresponding to target TTI.

As shown in Figure 3, in the present embodiment, such as, TTI before switching is 2msTTI, so target TTI is 10msTTI, so just deleting not sending MAC-i PDU corresponding to successful 2ms TTI, being configured to the MAC-i PDU that 10ms TTI is corresponding, but payload keeps the same with 2msTTI, but in order to mate 10msTTI TBS table, need to fill out padding bit(filler wherein).As shown in Figure 3, as long as retransmit the MAC-i PDU of TSN=2, suppose that the payload of 2msTTI is 160bit, but in order to mate the TBStable of 10msTTI, the load supposing the TBS table of 10msTTI is 166bit, so just fill out filler at the 2nd MAC-i PDU, i.e. 6bit, but payload or 160bit.

TSN does not reset simultaneously, keeps consistent with during 2msTTI.Therefore, in the present embodiment, the re-transmission triggering rlc layer is not needed.

The third execution mode of step 104, the first data encoding not sending the TTI before successfully switching corresponding is the second data that target TTI is corresponding in physical layer by subscriber equipment; Subscriber equipment sends the second data.

Namely in the present embodiment, the MAC-i PDU not sending successful 2msTTI does not delete, but in physical layer by fgs encoder to 10msTTI, the method require a TTI be with identical TBStable with the 2nd TTI.

TSN does not reset simultaneously, keeps consistent with during 2msTTI.Method in the present embodiment does not need to trigger rlc layer and retransmits.

4th kind of execution mode of step 104, after subscriber equipment receives indication message, does not remove the data in HARQbuffer, the data in HARQ buffer is built MAC-i PDU according to target TTI type, sends to base station; And reset MAC-i/is entity, TSN is reset to 0..Simultaneously in order to avoid RNC side MAC-is occurs out of order according to TSN sequence, need at E-DCH FP(Frame Protocol, Frame Protocol) or signaling in carry MAC-is reset and to indicate or MAC-i/is reset indicates.

In another embodiment, subscriber equipment is after receiving indication message, and the processing mode to user face is: after receiving indication message, does not build new MAC-i PDU, does not remove the data in existing harq buffer district simultaneously; When the transfer of data in existing harq buffer district is complete, subscriber equipment sends the confirmation to this indication message; The next CFN of subscriber equipment after sending confirmation is switched to 10msTTI; The next CFN of base station after receiving confirmation thinks and is switched to 10msTTI.Namely as described previously, user equipment side predefine or be configured with a maximum time, within this maximum time, subscriber equipment by complete for the transfer of data in harq buffer district, then sends confirmation to base station within maximum time.

Embodiment two

In the present embodiment, will be described from base station side TTI changing method, please refer to shown in Fig. 4, the method comprises:

Step 201: base station receives the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI.

In specific implementation process, step 201 is specially: base station receives the first configuration information corresponding to a TTI that RNC sends and the second configuration information corresponding to the 2nd TTI.Wherein, RNC sends a TTI and the 2nd TTI resource allocation information corresponding respectively by wireless link reconfigured process to base station.

Further, step 201 is similar with step 101, and RNC sends the first configuration information and process from the second configuration information to base station can be simultaneously, and may not be simultaneously, detailed process please refer to the description to step 101, here repeats no more.

In a further embodiment, when RNC sends the first configuration information and the second configuration information at the same time to base station, also specify the TTI type of the current use of UE, under normal conditions simultaneously, in order to prevent call drop, RNC can specify the TTI of the current use of UE to be 10msTTI.

Further, RNC send the first configuration information and the second configuration information in, comprise a set of E-DCH MAC-d flow parameter that each TTI is corresponding respectively, namely the E-DCH MAC-dflow parameter that a TTI is corresponding, the second configuration information comprises the 2nd E-DCH MAC-d flow parameter corresponding to the 2nd TTI; Further, can also comprise other parameters, such as, be that a TTI and the 2nd TTI configure a set of DTX(Discontinuous Transmission, discontinuous transmission respectively) parameter and/or DRX(DiscontinuousReception, discontinuous reception) parameter, the application is not construed as limiting.

Preferably, in another embodiment, before step 201, base station also reports the capability indication information supporting that TTI switches to RNC, and such as can to audit response at Audit Response(in base station) report this capability indication information in message.

Step 202: base station sends the indication message of TTI switching to subscriber equipment, performs step 103 to enable subscriber equipment.

In specific implementation process, base station performs TTI by physics signaling UE and switches, such as, notify that UE performs TTI and switches by HS-SCCH order.Certainly, in actual applications, also indication message can be sent by other physics signaling or non-physical signaling to UE.

As shown in Table 1, for the current HS-SCCH order used combines:

Table one

Xeodt1, Xeodt2 are 11 and Xodt1, Xodt2, Xodt3 are 010(or 011,100 etc. as can be seen from Table I) indication message that TTI switches can be used as.

Further, preferably, this HS-SCCH order can be triggered by the serving E-DCH cell of subscriber equipment in E-DCH RLS set.

In specific implementation process, before step 202, the method also comprises: base station judges that subscriber equipment is the need of carrying out TTI switching, obtains the first judged result; When the first judged result represents that subscriber equipment needs to carry out TTI switching, base station generates indication message.

In practice, base station to determine subscriber equipment, the need of carrying out TTI switching, can be accomplished in several ways.

First execution mode, if the current TTI of subscriber equipment is 2msTTI, so just judge that whether UPH is lower than the first thresholding, and/or whether upstream data rate (or E-TFCI of current TTI subscriber equipment selection) is lower than the second thresholding, if UPH is lower than the first thresholding, and/or upstream data rate (or E-TFCI of current TTI subscriber equipment selection) is lower than the second thresholding, so just represents that subscriber equipment needs to carry out TTI switching, and is the switching triggering 2msTTI to 10msTTI.

Second execution mode, if the current TTI of subscriber equipment is 2msTTI, so whether base station just has the UPH of user equipment to report in X TTI all lower than the 3rd thresholding in statistics Y TTI, and wherein, Y, N are the integer being more than or equal to 1, and X is less than or equal to Y; And/or whether upstream data rate (or E-TFCI of current TTI subscriber equipment selection) is lower than the second thresholding; If have the UPH of user equipment to report in X TTI in Y TTI all lower than the 3rd thresholding, and/or upstream data rate (or E-TFCI of current TTI subscriber equipment selection) is lower than the second thresholding, so just represent that subscriber equipment needs to carry out TTI switching, and be the switching triggering 2msTTI to 10msTTI.

Wherein, in above-mentioned two kinds of execution modes, the first thresholding can be identical with the 3rd thresholding, also can be different.

3rd execution mode, if the current TTI of subscriber equipment is 10msTTI, so just judge that whether UPH is higher than the 4th thresholding, and/or the TEBS(buffer size of user equipment to report) whether higher than the 5th thresholding, if UPH is higher than the 4th thresholding, and/or the TEBS of user equipment to report is higher than the 5th thresholding, so just represents that subscriber equipment needs to carry out TTI switching, and be the switching triggering 10msTTI to 2msTTI.

4th execution mode, if the current TTI of subscriber equipment is 10msTTI, so whether there is the UPH of user equipment to report in P TTI all higher than the 6th thresholding in base station statistics S TTI, wherein, S, P is the integer being more than or equal to 1, P is less than or equal to S, and/or the TEBS of user equipment to report is higher than the 5th thresholding, if whether have the UPH of user equipment to report in P TTI in S TTI all higher than the 6th thresholding, and/or the TEBS of user equipment to report is higher than the 5th thresholding, so just represent that subscriber equipment needs to carry out TTI switching, and be the switching triggering 10msTTI to 2msTTI.

Wherein, in above-mentioned 3rd execution mode and the 4th execution mode, the 4th thresholding can be identical with the 6th thresholding, also can be different.And in above-mentioned four kinds of modes, the first thresholding and the 4th thresholding can be identical, also can be different, and the 3rd thresholding and the 6th thresholding can be identical, also can be different.

Certainly, in practice, base station also can be carried out decision-making by other parameters or algorithm and whether perform TTI switching, and the application is not construed as limiting.

Switch when base station to determine will perform TTI, so just generate indication message, then perform step 202.

In a further embodiment, the method also comprises step 203: the confirmation that base station receives user equipment sends.Wherein, the confirmation that in step 203, base station receives is corresponding with the confirmation that subscriber equipment sends, and when confirmation describes the method for user equipment side in previous embodiment one, described in detail, so do not repeat them here.

Further, if within maximum time, base station does not receive the confirmation information, then resend indication message, that is, repeated execution of steps 202, wherein, maximum time is predefined or configurable, and such as RNC configures a maximum time to base station, so base station just within this maximum time to base station feedback confirmation.In the present embodiment, RNC be user device configuration maximum time and for base station configuration maximum time be identical.

In a further embodiment, after step 202, before step 203 or afterwards, the method also comprises step 204: base station sends MAC-i/is Reset instruction to RNC or MAC-is Reset indicates, and to make RNC, TSN is set to 0.

In a further embodiment, after step 202, before step 203 or afterwards, the method also comprises step 205: base station sends the target TTI after the switching of subscriber equipment to RNC.To inform the type of the TTI that RNC subscriber equipment is current.Such as can be indicated by FP frame or signaling (such as RADIO LINKRESTORE INDICATION or RADIO LINK PARAMETER UPDATE INDICATION).

In a further embodiment, after step 202, before step 203 or afterwards, the method also comprises: the upstream data utilizing target TTI to resolve subscriber equipment to send.

In order to the TTI switching flow that compatibility RRC signaling of the prior art triggers, only have a node control TTI to switch to ensure simultaneously; Allow RNC to turn off the TTI switching mode of base station triggers, then by the switching of RNC control TTI, such as, when the soft handover area of subscriber equipment movement, the TTI closing base station triggers with regard to informing base station switches.Therefore, base station has the mode of operation of closing TTI switching and the mode of operation of opening TTI switching, and be in the mode of operation of opening TTI switching in base station under, performs step 202.

Further, base station receives the indication information that radio network controller sends, and base station is switched to the mode of operation of opening TTI and switching by the mode of operation of closing TTI switching, or base station is switched to the mode of operation of closing TTI switching by the mode of operation of opening TTI switching.

In practice, RNC has but is not limited to the send mode of following two kinds of indication informations:

The first, indicated by the relevant configuration information comprising or do not comprise prewired TTI in reallocation message;

The second, by increasing a display switch instruction in reallocation message, when closing the TTI switching working mode of base station, the relevant configuration information of prewired TTI can not be deleted.

Such as RNC indicates base station to close TTI switching by RADIO LINK RECONFIGURATION REQUEST/Response, optionally, the target TTI type of the current use of this subscriber equipment is fed back in base station in RADIO LINK RECONFIGURATIONResponse.

Further, in order to be applied to soft handover field, while step 202 or afterwards, the method also comprises: base station sends indication information to wireless network control, to make radio network controller send indication information to non-serving base stations, switch to the target TTI after switching to make non-serving base stations.

Preferably, in this indication information, comprise the temporal information switching to target TTI.

TTI changing method in the present invention is below described by a concrete example again, and first suppose that base station is in the mode of operation of opening TTI and switching, please refer to shown in Fig. 5, the method comprises:

Step 301:UE and base station report the ability instruction supporting TTI to switch to RNC;

The prewired TTI of step 302:RNC side decision-making;

Step 303:UE and base station initial configuration 2msTTI configuration parameter, prewired 10msTTI configuration parameter;

Step 304: base station to determine triggers 2msTTI and is switched to 10msTTI;

Step 305: base station sends HS-SCCH order and triggers TTI switching;

Step 306:UE carries out TTI switching;

Step 307:UE is to base station feedback confirmation;

Step 308: base station sends MAC-is reset instruction to RNC optionally, can also be that transmission or MAC-i/is Reset indicate;

Step 309: the TTI of current use is fed back to RNC in base station;

The TTI that base station triggers is closed in step 310:RNC decision-making switches;

Step 311:RNC informing base station is turned off TTI and is switched;

Step 312: base station is closed TTI and switched, and optionally, also feeds back the TTI of current use to RNC;

Step 313:RNC control TTI switches.

Wherein, step 301-step 312 is all described in detail in embodiment one embodiment two, so do not repeat them here, and step 313, please refer to the method flow in Fig. 1.

It should be noted that, can also be that RNC decision-making performs TTI switching, send indication message to base station; Base station sends indication message to UE with aforesaid way, and subsequent step is identical with such scheme.The beneficial effect of the program is the reduction of the Signalling exchange of base station and RNC side, in such as prior art, RNC performs TTI switching by RADIO LINK RECONFIGURATION PREPARE, RADIO LINKRECONFIGURATION Ready, Radio Link Reconfiguration Confirm informing base station, in this programme, only need a signaling base station to perform TTI and switch.Therefore, the technical problem that in prior art, TTI handover delay is larger can be solved equally.

In addition, in this programme, RNC can notify that in E-DCH RLS set, non-serving base stations performs TTI switching simultaneously.

Embodiment three

Based on same mentality of designing, the embodiment of the present invention also provides a kind of subscriber equipment, and as shown in Figure 6, this subscriber equipment comprises: the first receiving element 401, for receiving the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI; Second receiving element 402, for receiving the indication message that base station sends, and sends to switch unit 403 by indication message; Switch unit 403, for receiving indication message from the second receiving element 402, and current TTI is switched to the target TTI corresponding with indication message, wherein, current TTI be a TTI and the 2nd TTI one of them, target TTI is another of a TTI and the 2nd TTI; First transmitting element 404, for sending data to base station with target TTI.

Preferably, a TTI is specially 2msTTI, and the 2nd TTI is specially 10msTTI.

Preferably, subscriber equipment also comprises: the second transmitting element, for sending confirmation to base station.

In the first embodiment, the second transmitting element specifically for feeding back ACK information or nack message to base station.

In this second embodiment, the second transmitting element carrys out equipment for indicating user be switched to target TTI specifically for carrying the E-TFCI prohibitted the use in E-DPCCH, and wherein, the E-TFCI prohibitted the use is predefined configurable or reserved.

In the third embodiment, the second transmitting element sends control information or data specifically for the uplink scrambling code corresponding with target TTI, receives indication message to indicate.

In the 4th execution mode, the second transmitting element receives indication message specifically for using the domain information in DPCCH to carry out equipment for indicating user.

Further, no matter send confirmation with which kind of execution mode above-mentioned, the second transmitting element is specifically for sending confirmation to base station in the maximum time after receiving indication message, and wherein, maximum time is predefined or configurable.

Preferably, first transmitting element 404 specifically for: when sending data to base station with a TTI, base station is sent data to a TTI after the lower M subframe of the first transmitting element 404 after the second transmitting element sends confirmation, wherein M is predefined or configurable, M be more than or equal to zero integer;

When sending data to base station with the 2nd TTI, send data to base station with the 2nd TTI after lower N number of CFN of the first transmitting element 404 after the second transmitting element sends confirmation, wherein N is predefined or configurable, N be more than or equal to zero integer.Such as, one TTI is 2msTTI, 2nd TTI is 10msTTI, so, if when target TTI is a TTI, i.e. 2msTTI, so namely switches from 10msTTI and comes, so the lower M subframe after sending confirmation, such as next subframe just can use 2msTTI to send data to base station; If target TTI is the 2nd TTI, i.e. 10msTTI, be so namely switch to 10msTTI from 2msTTI, so the lower N number of CFN after distributing confirmation, such as, after next CFN, just can send data to base station with 10msTTI.

Preferably, subscriber equipment also comprises: processing unit, before sending data to base station at the first transmitting element 404 with target TTI, removes the data in harq buffer district; And reset MAC-i/is entity.Wherein, reset MAC-i/is entity, concrete example by the variable TSN(TransmissionSequence Number of MAC layer, transmits Sequence Number in this way) reset to 0.Simultaneously, because data are blanked in MAC layer, so RLC(Radio Link Control of user equipment side, wireless spread-spectrum technology) layer just do not receive network side send RLC ACK, so will rebuild MAC-is/MAC-i PDU in RLC buffering area, and retransmit MAC-is/MAC-i PDU, namely the first transmitting element 404 sends data to base station with target TTI.

In another embodiment, the first transmitting element 404 specifically for: delete and do not send a MAC-i PDU corresponding to the TTI before successfully switching; The 2nd MAC-i PDU that establishing target TTI is corresponding, wherein, in the 2nd MAC-i PDU and in a MAC-i PDU, payload is identical; And send the 2nd MAC-i PDU corresponding to target TTI.

In an embodiment again, when under a TTI and under the 2nd TTI, when using identical TBS table, subscriber equipment also comprises: coding unit, for being the second data that the 2nd TTI is corresponding in physical layer by not sending the first data encoding corresponding to a successful TTI, and the second data are sent to the first transmitting element 404; First transmitting element 404 specifically for receiving the second data from coding unit, and sends the second data.

In a further embodiment, subscriber equipment also comprises: processing unit, for receive at the second receiving element 402 base station send indication message after, by the data in HARQ buffer memory, be configured to the MAC-i PDU that target TTI is corresponding; And reset MAC-i/is entity, TSN is set to 0.

Preferably, subscriber equipment also comprises: the 3rd transmitting element, for sending the capability indication information supporting that TTI switches.Concrete example in this way before the first receiving element 401 receives the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI, the 3rd transmitting element send support TTI to switch capability indication information to RNC.

Preferably, the HS-SCCH order that the second receiving element 402 sends specifically for receiving base station, namely indication message HS-SCCH order represents.

In the various embodiments described above, the first configuration information comprises an E-DCH MAC-dflow parameter corresponding to a TTI, and the second configuration information comprises the 2nd E-DCH MAC-d flow parameter corresponding to the 2nd TTI.

Further, the first configuration information also comprises a DTX parameter corresponding to a TTI and/or a DRX parameter, and the second configuration information also comprises the 2nd DTX parameter corresponding to the 2nd TTI and/or the 2nd DRX parameter.

In the embodiment above, the first receiving element 401 and the second receiving element 402 can be specifically same, also can be different receiving elements; And the first transmitting element 404 to the 3rd transmitting element can be identical transmitting element, it also can be mutually different transmitting element between two.

In above each embodiment, when not conflicting, mutually can combine enforcement.

Various variation pattern in TTI changing method in earlier figures 2 embodiment and instantiation are equally applicable to the subscriber equipment of the present embodiment, by the aforementioned detailed description to TTI changing method, those skilled in the art clearly can know the implementation method of subscriber equipment in the present embodiment, so succinct in order to specification, be not described in detail in this.

Embodiment four

The present embodiment provides a kind of subscriber equipment, please refer to shown in Fig. 7, and be the concept map of the hardware implementing example of subscriber equipment, this subscriber equipment comprises:

Receiver 503, for receiving the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI; And receive the indication message of base station transmission; Processor 501, for based on indication message, switches to the target TTI corresponding with indication message by current TTI, wherein, current TTI be a TTI and the 2nd TTI one of them, target TTI is another of a TTI and the 2nd TTI; Transmitter 504, for sending data to base station with target TTI.

Wherein, in the figure 7, bus architecture (representing by bus 500), bus 102 can comprise interconnected bus and the bridge of any amount, and the various electrical chains comprising the memory that one or more processor of being represented by processor 501 and memory 502 represent are connected together by bus 102.Other electrical chains various of such as ancillary equipment, pressurizer and management circuit etc. and so on can also be connected together by bus 102, and these are all hold office in this area, therefore, are no longer described further it herein.Bus interface 505 provides interface between bus 500 and receiver 503, transmitter 504.Receiver 503 and transmitter 504 can be same element, i.e. transceiver, are provided for the unit communicated with other devices various over a transmission medium.Depend on the character of subscriber equipment, user interface 506 can also be provided, such as keypad, display, loud speaker, microphone, joystick.

Processor 501 is in charge of bus 500 and common process, and memory 502 can be used to the data that storage of processor 501 uses when executable operations.

Preferably, a TTI is specially 2msTTI, and the 2nd TTI is specially 10msTTI.

Preferably, transmitter 504 is also for sending confirmation to base station.

In one embodiment, transmitter 504 specifically for feeding back ACK information or nack message to base station.

In another embodiment, transmitter 504 carrys out equipment for indicating user be switched to target TTI specifically for carrying the E-TFCI prohibitted the use in E-DPCCH, and wherein, the E-TFCI prohibitted the use is predefined configurable or reserved.

In an embodiment again, transmitter 504 sends control information or data specifically for the uplink scrambling code corresponding with target TTI, receives indication message to indicate.

In a further embodiment, transmitter 504 receives indication message specifically for using the domain information in DPCCH to carry out equipment for indicating user.

From another angle, what kind of the form regardless of confirmation is, transmitter 504 is specifically for sending confirmation to base station in the maximum time after receiving indication message, and wherein, maximum time is predefined or configurable.

Preferably, transmitter 504 also for:

When sending data to base station with a TTI, send data to described base station with a TTI after the lower M subframe after sending confirmation, wherein M is predefined or configurable, M be more than or equal to zero integer;

When sending data to base station with the 2nd TTI, send data to base station with the 2nd TTI after the lower N number of CFN after sending confirmation, wherein N is predefined or configurable, N be more than or equal to zero integer.

Preferably, processor 501 is also for removing the data in harq buffer district; And reset MAC-i/is entity, TSN is set to 0.

Preferably, processor 501 also for by the data in HARQ buffer memory, is configured to the MAC-i PDU that target TTI is corresponding; Reset MAC-i/is entity, TSN is set to 0.

Preferably, processor 501 does not also send a MAC-i PDU corresponding to the TTI before successfully switching for deleting; The 2nd MAC-i PDU that establishing target TTI is corresponding, wherein, in the 2nd MAC-i PDU and in a MAC-i PDU, payload is identical; Transmitter 504 is for sending the 2nd MAC-i PDU corresponding to described target TTI.

Preferably, subscriber equipment also comprises encoder, is coupled to processor 501, for being the second data that target TTI is corresponding in physical layer by the first data encoding not sending the TTI before successfully switching corresponding; Transmitter 504 is for sending the second data.

Preferably, transmitter 504 is also for sending the capability indication information supporting that TTI switches.

Preferably, receiver 503 is also for receiving the HS-SCCH order that base station sends.

In above each embodiment, the first configuration information comprises an E-DCH MAC-dflow parameter corresponding to a TTI, and the second configuration information comprises the 2nd E-DCH MAC-d flow parameter corresponding to the 2nd TTI.

Further, the first configuration information also comprises a DTX parameter corresponding to a TTI and/or a DRX parameter, and the second configuration information also comprises the 2nd DTX parameter corresponding to the 2nd TTI and/or the 2nd DRX parameter.

In above each embodiment, when not conflicting, mutually can combine enforcement.

Various variation pattern in TTI changing method in earlier figures 2 embodiment and instantiation are equally applicable to the subscriber equipment of the present embodiment, by the aforementioned detailed description to TTI changing method, those skilled in the art clearly can know the implementation method of subscriber equipment in the present embodiment, so succinct in order to specification, be not described in detail in this.

Embodiment five

In the present embodiment, provide a kind of base station, as shown in Figure 8, this base station comprises:

First receiving element 601, for receiving the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI; First transmitting element 602, for sending the indication message that TTI switches to subscriber equipment.

Preferably, a TTI is specially 2msTTI, and the 2nd TTI is specially 10msTTI.

Preferably, base station also comprises: the second receiving element, for receiving the confirmation that subscriber equipment sends.

Preferably, if the first transmitting element 602 is concrete also within maximum time, base station does not receive the confirmation information, then resend indication message, and wherein, maximum time is predefined or configurable.

Preferably, base station also comprises: the second transmitting element, for indicating to radio network controller transmission MAC-i/isReset instruction or MAC-is Reset.

Preferably, base station also comprises: the 3rd transmitting element, for send subscriber equipment switching after target TTI to radio network controller.

Preferably, base station has the mode of operation of mode of operation and the unlatching TTI switching of closing TTI switching, and the first transmitting element 602, specifically for being under the mode of operation of opening TTI switching in base station, sends the indication message of TTI switching to subscriber equipment.

Preferably, base station also comprises: the 3rd receiving element, under being in base station and closing mode of operation that TTI switches, receives the indication information that radio network controller sends, and indication information is sent to switch unit; Switch unit, for being switched to the mode of operation of opening TTI and switching by the mode of operation of closing TTI switching by base station based on indication information.

Preferably, base station also comprises: the 4th transmitting element, for sending the capability indication information supporting that TTI switches to radio network controller.

Preferably, base station also comprises: the 5th transmitting element, for sending indication information to wireless network control, to make radio network controller send indication information to non-serving base stations, switches to the target TTI after switching to make non-serving base stations.In the present embodiment, soft handover area is gone for.

Further, the temporal information switching to target TTI is comprised in indication information.

In the embodiment above, the first receiving element 601 to the 3rd receiving element can be specifically same, also can be receiving elements different between two; And the first transmitting element 602 to the 5th transmitting element can be identical transmitting element, it also can be mutually different transmitting element between two.

In above each embodiment, when not conflicting, mutually can combine enforcement.

Various variation pattern in TTI changing method in earlier figures 4 embodiment and instantiation are equally applicable to the base station of the present embodiment, by the aforementioned detailed description to TTI changing method, those skilled in the art clearly can know the implementation method of base station in the present embodiment, so succinct in order to specification, be not described in detail in this.

Embodiment six

In the present embodiment, provide a kind of base station, please refer to Fig. 9, be the block diagram of the hardware implementing example of base station, this base station comprises:

Receiver 701, for receiving the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI; Transmitter 702, for sending the indication message that TTI switches to subscriber equipment.

In fig .9, in downlink communication, launching processor 705 can from data sources data and from processor 704 receiving control information.Launch processor 705 and provide various signal processing function for these data, control information and reference signal, such as launching processor 705 can encode.Launch processor 705 and the symbol of generation is supplied to frame emission processor 430 to create frame structure, thus obtain series of frames.Then these frames are supplied to transmitter 702, it provides various signal conditioning functions, comprises amplification, filtering and is modulated on carrier wave by frame, to be transmitted on the radio medium by antenna 703.

And receiver 701 receives data by antenna 703 and data are processed to the information recovering to be modulated on carrier wave, the information that receiver 701 recovers is supplied to received frame processor 709, it is resolved each frame, receiving processor 710 pairs of frames are decoded, and the control signal that success is decoded is supplied to processor 704, if some frames fail successfully to be decoded by receiving processor 710, then processor 704 can also use ACK and/or NACK agreement to support the repeat requests to those frames.

Processor 704 can provide various function, comprises timing, peripheral interface, voltage-regulation, power management and other controlling functions.Memory 707 may be used for the data and the software that store base station.

Preferably, a TTI is specially 2msTTI, and the 2nd TTI is specially 10msTTI.

Preferably, receiver 701 also for: receive subscriber equipment send confirmation.

Preferably, transmitter 702 also for: if within maximum time, base station does not receive the confirmation information, then resend indication message, and wherein, maximum time is predefined or configurable.

Preferably, transmitter 702 also for: send MAC-i/is Reset instruction to radio network controller or MAC-is Reset indicates.

Preferably, transmitter 702 also for: send subscriber equipment switching after target TTI to radio network controller.

Preferably, base station have close TTI switch mode of operation and open TTI switch mode of operation, transmitter 702 specifically for: base station be in open TTI switch mode of operation under, to subscriber equipment send TTI switch indication message.

Further, receiver 701 for be in base station close TTI switch mode of operation under, receive radio network controller send indication information; Base station also comprises processor 704, for: base station is switched to the mode of operation of opening TTI and switching by the mode of operation of closing TTI switching.

Preferably, transmitter 702 is for sending the capability indication information supporting that TTI switches to radio network controller.

Preferably, transmitter 702, for sending indication information to wireless network control, to make radio network controller send indication information to non-serving base stations, switches to the target TTI after switching to make non-serving base stations.

Further, the temporal information switching to target TTI is comprised in indication information.

In above each embodiment, when not conflicting, mutually can combine enforcement.

Various variation pattern in TTI changing method in earlier figures 4 embodiment and instantiation are equally applicable to the base station of the present embodiment, by the aforementioned detailed description to TTI changing method, those skilled in the art clearly can know the implementation method of base station in the present embodiment, so succinct in order to specification, be not described in detail in this.

In the embodiment of the present invention, a TTI two TTI different with a TTI is furnished with in advance at subscriber equipment end, and the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI, as long as after the indication message receiving base station transmission, just can directly switch the current TTI of subscriber equipment, and switch to the target TTI corresponding with indication message, and send data to base station with target TTI, so do not need in the process switched, RNC sends new configuration information to base station again, so also carry out repeatedly Signalling exchange with regard to not needing between RNC and base station, so the TTI handoff procedure in the present embodiment is timely, time delay is less, so avoid when 2msTTI switches to 10msTTI, E-DCH loss of data or call drop, simultaneously because the switching of 10msTTI to 2msTTI can be performed in time, so can peak rate be improved.

Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.

The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.

Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.

Obviously, those skilled in the art can carry out various change and modification to the embodiment of the present invention and not depart from the spirit and scope of the embodiment of the present invention.Like this, if these amendments of the embodiment of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (78)

1. a TTI changing method, is characterized in that, comprising:

Subscriber equipment receives the first configuration information corresponding to the first Transmission Time Interval (TTI) and the second configuration information corresponding to the 2nd TTI;

Described subscriber equipment receives the indication message that base station sends;

Current TTI is switched to the target TTI corresponding with described indication message by described subscriber equipment, wherein, described current TTI be a described TTI and described 2nd TTI one of them, described target TTI is another of a described TTI and described 2nd TTI;

Described subscriber equipment sends data to described base station with described target TTI.

2. the method for claim 1, is characterized in that, a described TTI is specially 2 milliseconds (ms), and described 2nd TTI is specially 10 milliseconds (ms).

3. method as claimed in claim 1 or 2, is characterized in that, after described subscriber equipment receives the indication message of base station transmission, also comprises:

Described subscriber equipment carries enhancing dedicated transmission channel form merging instruction (E-TFCI) prohibitted the use and indicates described subscriber equipment to be switched to described target TTI in enhancing Dedicated Physical Control Channel (E-DPCCH), wherein, the E-TFCI prohibitted the use described in is predefined configurable or reserved.

4. method as claimed in claim 1 or 2, is characterized in that, after described subscriber equipment receives the indication message of base station transmission, also comprises:

Described subscriber equipment sends control information or data with the uplink scrambling code that described target TTI is corresponding, receives described indication message to indicate.

5. method as claimed in claim 1 or 2, is characterized in that, after described subscriber equipment receives the indication message of base station transmission, also comprises:

Described subscriber equipment uses the domain information in Dedicated Physical Control Channel (DPCCH) to indicate described subscriber equipment to receive described indication message.

6. method as claimed in claim 1 or 2, is characterized in that, after described subscriber equipment receives the indication message of base station transmission, also comprises:

Described subscriber equipment sends confirmation to described base station in the maximum time after receiving described indication message, wherein, described maximum time is predefined or configurable.

7. the method for claim 1, is characterized in that, described subscriber equipment sends data to described base station with described target TTI, is specially:

When described subscriber equipment sends data to described base station with a described TTI, described base station is sent data to a described TTI after the lower M subframe of described subscriber equipment after sending described confirmation, wherein M is predefined or configurable, M be more than or equal to zero integer; Or

When described subscriber equipment sends data to described base station with described 2nd TTI, described base station is sent data to described 2nd TTI after lower N number of Connection Frame Number (CFN) of described subscriber equipment after sending described confirmation, wherein N is predefined or configurable, N be more than or equal to zero integer.

8. the method according to any one of claim 1-7, is characterized in that, described subscriber equipment also comprises before sending data to described base station with described target TTI:

The data in hybrid automatic repeat-request (HARQ) buffering area removed by described subscriber equipment;

Described subscriber equipment resets up enhancing entity, and transmission sequence number (TSN) is set to 0.

9. the method according to any one of claim 1-7, is characterized in that, described subscriber equipment also comprises after receiving the indication message of base station transmission:

Described subscriber equipment, by the data in HARQ buffer memory, is configured to up enhancing/protocol Data Unit (MAC-i PDU) that described target TTI is corresponding;

Described subscriber equipment resets MAC-i/is entity, and will transmit Sequence Number (TSN) is set to 0.

10. the method according to any one of claim 1-7, is characterized in that, described subscriber equipment sends data to described base station with described target TTI, specifically comprises:

Described subscriber equipment is deleted and is not sent the first up enhancing protocol Data Unit (MAC-i PDU) corresponding to the TTI before successfully switching;

The 2nd MAC-i PDU that target TTI described in described user device constructs is corresponding, wherein, in described 2nd MAC-i PDU and in a described MAC-i PDU, payload is identical;

Described subscriber equipment sends the 2nd MAC-i PDU corresponding to described target TTI.

11. methods according to any one of claim 1-7, it is characterized in that, when under a described TTI and under described 2nd TTI, when using identical transmission block size (TBS) to show, described subscriber equipment sends data to described base station with described target TTI, specifically comprises:

The first data encoding not sending the TTI before successfully switching corresponding is the second data that described target TTI is corresponding in physical layer by described subscriber equipment;

Described subscriber equipment sends described second data.

12. methods as described in any one of claim 1-11, is characterized in that, before subscriber equipment receives first configuration information of a TTI and second configuration information of the 2nd TTI, described method also comprises:

Described subscriber equipment sends the capability indication information supporting that TTI switches.

13. methods according to any one of claim 1-12, is characterized in that, described subscriber equipment receives the indication message that base station sends, and is specially:

Described subscriber equipment receives the High-Speed Shared Control Channel instruction (HS-SCCH order) that base station sends.

14. methods according to any one of claim 1-13, it is characterized in that, described first configuration information comprises the first enhancing dedicated channel Media access contorl stream (E-DCH MAC-dflow) parameter corresponding to a described TTI, and described second configuration information comprises the 2nd E-DCH MAC-d flow parameter corresponding to described 2nd TTI.

15. methods as claimed in claim 14, it is characterized in that, described first configuration information also comprises the first discontinuous transmission (DTX) parameter corresponding to a described TTI and/or the first discontinuous reception (DRX) parameter, and described second configuration information also comprises the 2nd DTX parameter corresponding to described 2nd TTI and/or the 2nd DRX parameter.

16. 1 kinds of TTI changing methods, is characterized in that, comprising:

Described base station receives the first configuration information corresponding to the first Transmission Time Interval (TTI) and the second configuration information corresponding to the 2nd TTI;

Described base station sends the indication message of TTI switching to subscriber equipment.

17. methods as claimed in claim 16, it is characterized in that, a described TTI is specially 2 milliseconds (ms), described 2nd TTI is specially 10 milliseconds (ms).

18. methods as described in claim 16 or 17, is characterized in that, after described base station to send to subscriber equipment and requires that described subscriber equipment carries out the indication message of TTI switching, described method also comprises:

Described base station receives the confirmation that described subscriber equipment sends.

19. methods as claimed in claim 18, is characterized in that, described base station sends to subscriber equipment and requires that described subscriber equipment carries out the indication message of TTI switching, is specially:

If within maximum time, described base station does not receive described confirmation, then resend described indication message, and wherein, described maximum time is predefined or configurable.

20. methods according to any one of claim 16-19, is characterized in that, after described base station to send the indication message that TTI switches to subscriber equipment, described method also comprises:

Described base station sends up enhancing entity to radio network controller and resets instruction or up enhancing entity replacement instruction.

21. methods according to any one of claim 16-20, is characterized in that, after described base station to send the indication message that TTI switches to described subscriber equipment, described method also comprises:

Described base station sends the target TTI after the switching of described subscriber equipment to radio network controller.

22. methods according to any one of claim 16-20, it is characterized in that, described base station has the mode of operation of closing TTI switching and the mode of operation of opening TTI switching, and described base station sends the indication message of TTI switching to described subscriber equipment, is specially:

Be in the mode of operation of described unlatching TTI switching in described base station under, described base station sends the indication message of TTI switching to described subscriber equipment.

23. methods as claimed in claim 22, it is characterized in that, be in the mode of operation of described closedown TTI switching in described base station under, described base station receives the indication information that radio network controller sends, and the mode of operation switching to described unlatching TTI to switch the mode of operation that described base station is switched by described closedown TTI.

24. methods according to any one of claim 16-23, is characterized in that, before described base station receives the first configuration information corresponding to a TTI and the second configuration information corresponding to the 2nd TTI, described method also comprises:

Described base station sends the capability indication information supporting that TTI switches to radio network controller.

25. methods according to any one of claim 16-24, is characterized in that, while described base station to send the indication message that TTI switches to described subscriber equipment or afterwards, described method also comprises:

Described base station sends indication information to wireless network control, to make described radio network controller send described indication information to non-serving base stations, switches to the target TTI after switching to make described non-serving base stations.

26. methods as claimed in claim 25, is characterized in that, comprise the temporal information switching to described target TTI in described indication information.

27. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

First receiving element, the second configuration information that the first configuration information and the 2nd TTI for receiving the first Transmission Time Interval (TTI) correspondence are corresponding;

Second receiving element, for receiving the indication message that base station sends, and sends to switch unit by described indication message;

Described switch unit, for receiving described indication message from described second receiving element, and current TTI is switched to the target TTI corresponding with described indication message, wherein, described current TTI be a described TTI and described 2nd TTI one of them, described target TTI is another of a described TTI and described 2nd TTI;

First transmitting element, for sending data to described base station with described target TTI.

28. subscriber equipmenies as claimed in claim 27, it is characterized in that, a described TTI is specially 2 milliseconds (ms), described 2nd TTI is specially 10 milliseconds (ms).

29. subscriber equipmenies as described in claim 27 or 28, it is characterized in that, described subscriber equipment also comprises:

Second transmitting element, described subscriber equipment is indicated to be switched to described target TTI for carrying enhancing dedicated transmission channel form merging instruction (E-TFCI) prohibitted the use in enhancing Dedicated Physical Control Channel (E-DPCCH), wherein, the E-TFCI prohibitted the use described in is predefined configurable or reserved.

30. subscriber equipmenies as described in claim 27 or 28, it is characterized in that, described subscriber equipment also comprises:

Second transmitting element, sends control information or data for the uplink scrambling code corresponding with described target TTI, receives described indication message to indicate.

31. subscriber equipmenies as described in claim 27 or 28, it is characterized in that, described subscriber equipment also comprises:

Second transmitting element, has received described indication message for using the domain information in Dedicated Physical Control Channel (DPCCH) to indicate described subscriber equipment.

32. subscriber equipmenies as described in claim 27 or 28, it is characterized in that, described subscriber equipment also comprises:

Second transmitting element, for sending confirmation in the maximum time after receiving described indication message to described base station, wherein, described maximum time is predefined or configurable.

33. subscriber equipmenies as claimed in claim 27, is characterized in that, described first transmitting element specifically for:

When sending data to described base station with a described TTI, described base station is sent data to a described TTI after the lower M subframe of described first transmitting element after described second transmitting element sends described confirmation, wherein M is predefined or configurable, M be more than or equal to zero integer; Or

When sending data to described base station with described 2nd TTI, described base station is sent data to described 2nd TTI after lower N number of Connection Frame Number (CFN) of described first transmitting element after described second transmitting element sends described confirmation, wherein N is predefined or configurable, N be more than or equal to zero integer.

34. subscriber equipmenies according to any one of claim 27-33, it is characterized in that, described subscriber equipment also comprises:

Processing unit, before sending data to described base station at described first transmitting element with described target TTI, removes the data in hybrid automatic repeat-request (HARQ) buffering area; Lay equal stress on and be set up row enhancing entity, and TSN is set to 0.

35. subscriber equipmenies according to any one of claim 27-33, it is characterized in that, described subscriber equipment also comprises:

Processing unit, for receive at described second receiving element described base station send indication message after, by the data in HARQ buffer memory, be configured to the up enhancing protocol Data Unit (MAC-i PDU) that described target TTI is corresponding; Lay equal stress on and be set up row enhancing entity, TSN is set to 0.

36. subscriber equipmenies according to any one of claim 27-33, is characterized in that, described first transmitting element specifically for:

Delete and do not send the first up enhancing protocol Data Unit (MAC-iPDU) corresponding to the TTI before successfully switching; Build the 2nd MAC-i PDU that described target TTI is corresponding, wherein, in described 2nd MAC-i PDU and in a described MAC-i PDU, payload is identical; And send the 2nd MAC-i PDU corresponding to described target TTI.

37. subscriber equipmenies according to any one of claim 27-33, it is characterized in that, when under a described TTI and under described 2nd TTI, when using identical transmission block size (TBS) to show, described subscriber equipment also comprises:

Described second data for being the second data that described 2nd TTI is corresponding in physical layer by not sending the first data encoding that successfully a described TTI is corresponding, and are sent to described first transmitting element by coding unit;

Described first transmitting element specifically for receiving described second data from described coding unit, and sends described second data.

38. subscriber equipmenies according to any one of claim 27-37, it is characterized in that, described subscriber equipment also comprises:

3rd transmitting element, for sending the capability indication information supporting that TTI switches.

39. subscriber equipmenies according to any one of claim 27-38, is characterized in that, the High-Speed Shared Control Channel instruction (HS-SCCH order) that described second receiving element sends specifically for receiving base station.

40. subscriber equipmenies according to any one of claim 27-39, it is characterized in that, described first configuration information comprises the first enhancing dedicated channel Media access contorl stream (E-DCHMAC-d flow) parameter corresponding to a described TTI, and described second configuration information comprises the 2nd E-DCHMAC-d flow parameter corresponding to described 2nd TTI.

41. subscriber equipmenies as claimed in claim 40, it is characterized in that, described first configuration information also comprises the first discontinuous transmission (DTX) parameter corresponding to a described TTI and/or the first discontinuous reception (DRX) parameter, and described second configuration information also comprises the 2nd DTX parameter corresponding to described 2nd TTI and/or the 2nd DRX parameter.

42. 1 kinds of subscriber equipmenies, is characterized in that, comprising:

Receiver, the second configuration information that the first configuration information and the 2nd TTI for receiving the first Transmission Time Interval (TTI) correspondence are corresponding; And receive the indication message of base station transmission;

Processor, for based on described indication message, current TTI is switched to the target TTI corresponding with described indication message, wherein, described current TTI be a described TTI and described 2nd TTI one of them, described target TTI is another of a described TTI and described 2nd TTI;

Transmitter, for sending data to described base station with described target TTI.

43. subscriber equipmenies as claimed in claim 42, it is characterized in that, a described TTI is specially 2 milliseconds (ms), described 2nd TTI is specially 10 milliseconds (ms).

44. subscriber equipmenies as described in claim 42 or 43, it is characterized in that, described transmitter indicates described subscriber equipment to be switched to described target TTI specifically for carrying enhancing dedicated transmission channel form merging instruction (E-TFCI) prohibitted the use in enhancing Dedicated Physical Control Channel (E-DPCCH), wherein, the E-TFCI prohibitted the use described in is predefined configurable or reserved.

45. subscriber equipmenies as described in claim 42 or 43, it is characterized in that, described transmitter sends control information or data specifically for the uplink scrambling code corresponding with described target TTI, receives described indication message to indicate.

46. subscriber equipmenies as described in claim 42 or 43, is characterized in that, described transmitter indicates described subscriber equipment to receive described indication message specifically for using the domain information in Dedicated Physical Control Channel (DPCCH).

47. subscriber equipmenies as described in claim 42 or 43, it is characterized in that, described transmitter is specifically for sending confirmation to described base station in the maximum time after receiving described indication message, wherein, described maximum time is predefined or configurable.

48. subscriber equipmenies as claimed in claim 42, is characterized in that, described transmitter also for:

When sending data to described base station with a described TTI, send data to described base station with a described TTI after the lower M subframe after sending described confirmation, wherein M is predefined or configurable, M be more than or equal to zero integer; Or

When sending data to described base station with described 2nd TTI, described base station is sent data to described 2nd TTI after lower N number of Connection Frame Number (CFN) after sending described confirmation, wherein N is predefined or configurable, N be more than or equal to zero integer.

49. subscriber equipmenies according to any one of claim 42-48, it is characterized in that, described processor is also for removing the data in hybrid automatic repeat-request (HARQ) buffering area; Lay equal stress on and be set up row enhancing entity, TSN is set to 0.

50. subscriber equipmenies according to any one of claim 42-48, it is characterized in that, described processor also for by the data in HARQ buffer memory, is configured to the up enhancing protocol Data Unit of MAC-i PDU(corresponding to described target TTI); Reset up enhancing entity, TSN is set to 0.

51. subscriber equipmenies according to any one of claim 42-48, is characterized in that,

Described processor does not also send the first up enhancing protocol Data Unit (MAC-i PDU) corresponding to the TTI before successfully switching for deleting; Build the 2nd MAC-i PDU that described target TTI is corresponding, wherein, in described 2nd MAC-i PDU and in a described MAC-i PDU, payload is identical;

Described transmitter is for sending the 2nd MAC-i PDU corresponding to described target TTI.

52. subscriber equipmenies according to any one of claim 42-48, it is characterized in that, described subscriber equipment also comprises encoder, for being the second data that described target TTI is corresponding in physical layer by the first data encoding not sending the TTI before successfully switching corresponding;

Described transmitter is for sending described second data.

53. subscriber equipmenies according to any one of claim 42-52, is characterized in that, described transmitter is also for sending the capability indication information supporting that TTI switches.

54. subscriber equipmenies according to any one of claim 42-53, is characterized in that, described receiver is also for receiving the High-Speed Shared Control Channel instruction (HS-SCCH order) that base station sends.

55. subscriber equipmenies according to any one of claim 42-54, it is characterized in that, described first configuration information comprises the first enhancing dedicated channel Media access contorl stream (E-DCHMAC-d flow) parameter corresponding to a described TTI, and described second configuration information comprises the 2nd E-DCHMAC-d flow parameter corresponding to described 2nd TTI.

56. subscriber equipmenies as claimed in claim 55, it is characterized in that, described first configuration information also comprises the first discontinuous transmission (DTX) parameter corresponding to a described TTI and/or the first discontinuous reception (DRX) parameter, and described second configuration information also comprises the 2nd DTX parameter corresponding to described 2nd TTI and/or the 2nd DRX parameter.

57. 1 kinds of base stations, is characterized in that, comprising:

First receiving element, the second configuration information that the first configuration information and the 2nd TTI for receiving the first Transmission Time Interval (TTI) correspondence are corresponding;

First transmitting element, for sending the indication message that TTI switches to subscriber equipment.

58. base stations as claimed in claim 57, it is characterized in that, a described TTI is specially 2 milliseconds (ms), described 2nd TTI is specially 10 milliseconds (ms).

59. base stations as described in claim 57 or 58, it is characterized in that, described base station also comprises:

Second receiving element, for receiving the confirmation that described subscriber equipment sends.

60. base stations as claimed in claim 59, is characterized in that, if the first transmitting element is concrete also within maximum time, described base station does not receive described confirmation, then resend described indication message, wherein, described maximum time is predefined or configurable.

61. base stations according to any one of claim 57-60, it is characterized in that, described base station also comprises:

Second transmitting element, resets instruction or up enhancing entity replacement instruction for sending up enhancing entity to radio network controller.

62. base stations according to any one of claim 57-61, it is characterized in that, described base station also comprises:

3rd transmitting element, for send described subscriber equipment switching after target TTI to radio network controller.

63. base stations according to any one of claim 57-62, it is characterized in that, described base station has closes the mode of operation that TTI switches and the mode of operation of opening TTI switching, described first transmitting element, specifically under the mode of operation being in described unlatching TTI switching in described base station, sends the indication message of TTI switching to described subscriber equipment.

64. base stations as described in claim 63, it is characterized in that, described base station also comprises:

3rd receiving element, for be in mode of operation that described closedown TTI switches in described base station under, receive the indication information that described radio network controller sends, and described indication information is sent to switch unit;

Described switch unit, for the mode of operation switching to described unlatching TTI to switch the mode of operation that described base station is switched by described closedown TTI based on described indication information.

65. base stations according to any one of claim 57-64, it is characterized in that, described base station also comprises:

4th transmitting element, for sending the capability indication information supporting that TTI switches to radio network controller.

66. base stations according to any one of claim 57-65, it is characterized in that, described base station also comprises:

5th transmitting element, for sending indication information to wireless network control, to make described radio network controller send described indication information to non-serving base stations, switches to the target TTI after switching to make described non-serving base stations.

67. base stations as described in claim 66, is characterized in that, comprise the temporal information switching to described target TTI in described indication information.

68. 1 kinds of base stations, is characterized in that, comprising:

Receiver, the second configuration information that the first configuration information and the 2nd TTI for receiving the first Transmission Time Interval (TTI) correspondence are corresponding;

Transmitter, for sending the indication message that TTI switches to subscriber equipment.

69. base stations as recited in claim 68, it is characterized in that, a described TTI is specially 2 milliseconds (ms), and described 2nd TTI is specially 10 milliseconds (ms).

70. base stations as described in claim 68 or 69, is characterized in that, described receiver also for: receive the confirmation that described subscriber equipment sends.

71. base stations as described in claim 70, is characterized in that, described transmitter also for: if within maximum time, described base station does not receive described confirmation, then resend described indication message, wherein, described maximum time is predefined or configurable.

72. base stations according to any one of claim 68-71, is characterized in that, described transmitter also for: send up enhancing entity to radio network controller and reset the up enhancing entity of instruction and reset instruction.

73. base stations according to any one of claim 68-72, is characterized in that, described transmitter also for: send the target TTI after the switching of described subscriber equipment to radio network controller.

74. base stations according to any one of claim 68-73, it is characterized in that, described base station has closes the mode of operation that TTI switches and the mode of operation of opening TTI switching, described transmitter specifically for: under described base station is in the mode of operation that described unlatching TTI switches, send to described subscriber equipment the indication message that TTI switches.

75. base stations as described in claim 74, is characterized in that, described receiver is used for, under described base station is in the mode of operation that described closedown TTI switches, receiving the indication information that radio network controller sends;

Described base station also comprises processor, the mode of operation that the mode of operation for being switched by described closedown TTI described base station switches to described unlatching TTI to switch.

76. base stations according to any one of claim 68-75, is characterized in that, described transmitter is used for sending to radio network controller the capability indication information supporting that TTI switches.

77. base stations according to any one of claim 68-76, it is characterized in that, described transmitter is used for sending indication information to wireless network control, to make described radio network controller send described indication information to non-serving base stations, switch to the target TTI after switching to make described non-serving base stations.

78. base stations as described in claim 77, is characterized in that, comprise the temporal information switching to described target TTI in described indication information.