CN108702652A - A kind of TTI switching method and apparatus - Google Patents

Abstract

The invention discloses a kind of TTI configuration methods and devices, are related to field of communication technology, to save signaling overheads.Method provided in an embodiment of the present invention is applied in the system for supporting multi-transceiver technology, and multi-transceiver technology supports that at least two TTI combinations, this method include:UE receives the switching command that base station is sent;Wherein, the switching command be used to indicate TTI switching, and the switching command combined with the target TTI that multi-transceiver technology is supported between there are mapping relations;Target TTI combinations are a kind of TTI combinations at least two TTI combinations;UE according to switching command combined with target TTI between mapping relations, determine target TTI combination.

Description

A kind of TTI switching method and apparatus Technical field

The present invention relates to field of communication technology more particularly to a kind of Transmission Time Interval (transmission time interval, TTI) switching method and apparatus.

Background technique

Universal Mobile Communication System (universal mobile telecommunications system, UMTS High Speed Uplink Packet access (high speed uplink packet access), HSUPA) single-carrier technology (hereinafter referred to single-carrier technology) supports two kinds of TTI, one of which is 2ms (millisecond) TTI, and another kind is 10msTTI.When specific implementation, base station can pass through High-Speed Shared Control Channel (high speed shared control channel, HS-SCCH) to user equipment (user equipment, UE instruction (i.e. HS-SCCH order)) is sent, to realize the switching of the TTI to the carrier wave of UE.Wherein, the TTI of carrier wave refers to the TTI that the carrier wave upper signal channel uses, and for UMTS, which refers to the dedicated channel (enhanced dedicated channel, E-DCH) of enhancing.

For HSUPA dual carrier (including main carrier and secondary carrier) technology (hereinafter referred to dual carrier technology), the TTI combination of 2ms+2ms is only supported at present, i.e., the TTI of two carrier waves is 2ms.Third generation partner program (3rd generation partnership project, 3GPP) R14 proposes the research of " multicarrier enhancing ", in this study, dual carrier technology can also support following two TTI to combine: 2ms+10msTTI combination, the TTI combination of 10ms+10ms.This needs to introduce new method just to realize the switching of TTI that dual carrier technology is supported combination.

In order to solve the above-mentioned technical problem, a kind of implementation is proposed in 3GPP: for dual carrier technology, a HS-SCCH order is respectively configured for main carrier and secondary carrier, wherein, it is used to control the switching of the TTI of main carrier for the HS-SCCH order that main carrier configures, is used to control the switching of the TTI of secondary carrier for the HS-SCCH order that secondary carrier configures.In addition, providing in 3GPP agreement: UE needs to send a mixing to base station certainly after receiving a HS-SCCH order Whether dynamic retransmission request (hybrid automatic repeat request, HARQ) message, be properly received the HS-SCCH order with signals base UE.

In this way, if needing to send 2 HS-SCCH order to UE, thus the problem for causing signaling overheads larger when base station needs simultaneously to switch over the TTI of main carrier and the TTI of secondary carrier；Alternatively, if needing to send 2 HS-SCCH order to UE, and UE needs to reply 2 HARQ message to base station, thus the problem for causing signaling overheads big when base station needs simultaneously to switch over the TTI of main carrier and the TTI of secondary carrier.

Summary of the invention

The embodiment of the present invention provides a kind of TTI switching method and apparatus, to save signaling overheads.

In a first aspect, providing a kind of TTI switching method, applied in the system for supporting multi-transceiver technology, multi-transceiver technology supports at least two TTI combination, and this method may include: that UE receives the switching command that base station is sent；Wherein, which is used to indicate TTI switching, and the switching command combine with the target TTI that multi-transceiver technology is supported between there are mapping relations, target TTI combination is that one of at least two TTI combination TTI is combined；Then, UE combined according to switching command with target TTI between mapping relations, determine target TTI combine.Wherein, the TTI combination that multi-transceiver technology is supported is it is to be understood that the set that the TTI of each carrier wave in multicarrier is constituted；Target TTI combination is it is to be understood that the set that the target TTI of each carrier wave in multicarrier is constituted.The switching command can be HS-SCCH order, be also possible to the coded combination reserved in HS-SCCH order.Certainly, when specific implementation, which is also possible to a kind of switching command newly defined.It can be seen that, in this method, a TTI combination is indicated by a switching command, to realize the switching for the TTI combination supported multi-transceiver technology, in this way, in the case where the TTI of multiple carrier waves switches simultaneously, base station only needs to send a switching command to UE, UE only needs to reply a HARQ message to base station, therefore, with in the prior art in the case where the TTI of multiple carrier waves switches simultaneously, base station, which needs to send multiple switching command technical solutions to UE, to be compared, and can save signaling overheads.

In a kind of possible design, there are mapping relations between the target TTI that above-mentioned switching command is also supported with single-carrier technology；Wherein, target TTI can be any one TTI that single-carrier technology is supported.In this case, UE combined according to switching command with target TTI between mapping relations, determine target TTI combine, if may include: UE using multi-transceiver technology, then UE combined according to switching command with the target TTI that multi-transceiver technology is supported between mapping relations, determine target TTI combine.In the possible design, the switching command of the switching TTI combination in multi-transceiver technology has been multiplexed the switching command for switching TTI in single-carrier technology, in such manner, it is possible to the type of the switching command between base station and UE be reduced, to improve the decoding performance of UE.Its concrete analysis process can refer to hereafter.It is exemplary, it can be with reference to table 2 hereinafter.

In a kind of possible design, there are mapping relations between the target TTI that above-mentioned switching command is also supported with single-carrier technology, if this method can also include: UE using single-carrier technology, the mapping relations between target TTI that then UE is supported according to switching command and single-carrier technology, determine target TTI.For the system for only supporting single-carrier technology, a switching command is only related with the single-carrier technology；However, for the possible design (that is: the system not only supported single-carrier technology but also supported multi-transceiver technology), one switching command not only and single-carrier technology in relation to but also with multi-transceiver technology it is related, therefore, for the possible design, UE after receiving switching command, need to first determine whether itself it is currently used be single-carrier technology or multi-transceiver technology.

In a kind of possible design, above-mentioned switching command and one kind preset current TTI combine between there are mapping relations, this preset current TTI combination combined with target TTI between there are mapping relations, wherein, the switching command can be preset with one or more current TTI combine between there are mapping relations, different default current TTI can between same target TTI there are mapping relations, can also be combined with different target TTI between there are mapping relations.It is exemplary, the switching command, which with first presets current TTI and combines (such as 2ms+2msTTI combine) and second, presets between current TTI combination (such as 2ms+10msTTI combination) that there are mapping relations, also, first, which presets current TTI combination and second, presets current TTI Combination combine between (such as 10ms+10msTTI combine) that there are corresponding relationships with same target TTI.In the possible design, UE combined according to switching command with target TTI between mapping relations, determine that target TTI is combined, if may include: the TTI combination of UE use is that this presets current TTI combination, then according to this preset current TTI combination combine with target TTI between mapping relations, determine target TTI combination.It should be noted that, in the possible design, if switching command with it is a variety of preset current TTI combine between there are mapping relations, the type of switching command can be saved, specific example can be certainly without being limited thereto when specific implementation with reference to table 5, table 6 and table 7 hereinafter.

In a kind of possible design, this method can also include: that UE is combined using target TTI to base station transmission data on multicarrier；Specific: UE is on the carrier wave being active in multicarrier, using the TTI of the carrier wave being active in target TTI combination, sends data to base station.In actual implementation, UE is using during multi-transceiver technology, and the partial carrier wave in the multicarrier may be at state of activation, and other carrier waves are active；Alternatively, each carrier wave in the multicarrier is in state of activation.The possible design provides the specific implementation of the TTI switching for the carrier wave being active.For the carrier wave in deactivation status, TTI can be switched over or without switching.

Second aspect provides a kind of UE, and applied in the system for supporting multi-transceiver technology, multi-transceiver technology supports at least two Transmission Time Interval TTI combination, which may include: receiver and processor.Wherein: receiver, for receive base station transmission switching command, the switching command be used to indicate TTI switching, and the switching command combined with the target TTI that multi-transceiver technology is supported between there are mapping relations；Target TTI combination is one of at least two TTI combination TTI combination.Processor determines that target TTI is combined for the mapping relations between combining according to switching command with target TTI.

In a kind of possible design, there are mapping relations between the target TTI that above-mentioned switching command is also supported with single-carrier technology, in this case, processing implement body can be used for: if UE, using multi-transceiver technology, UE is propped up according to switching command and multi-transceiver technology The mapping relations between target TTI combination held, determine that target TTI is combined.

In a kind of possible design, there are mapping relations between the target TTI that above-mentioned switching command is also supported with single-carrier technology, processor can be also used for: if UE is using single-carrier technology, the mapping relations between target TTI that then UE is supported according to the switching command and single-carrier technology, determine target TTI.

In a kind of possible design, switching command with preset current TTI combine between there are mapping relations, preset current TTI combination combined with target TTI between there are mapping relations.In this case, processing implement body can be used for: if the TTI combination that UE is used is to preset current TTI combination, according to preset current TTI combination combine with target TTI between mapping relations, determine target TTI combination.

In a kind of possible design, UE can also include: transmitter, for the carrier wave being active in multicarrier, using the TTI of the carrier wave being active in target TTI combination, send data to base station.

The UE provided due to any possible design of second aspect or second aspect, corresponding TTI switching method provided in corresponding possible design for executing first aspect or first aspect, therefore, its attainable beneficial effect can refer to first aspect or first aspect corresponding possible design beneficial effect, details are not described herein again.

The third aspect provides a kind of TTI switching method, and applied in the system for supporting multi-transceiver technology, multi-transceiver technology supports at least two TTI combination, and multicarrier includes main carrier and at least one secondary carrier；Method includes: that user equipment (UE) receives the secondary carrier activation instruction that base station is sent；Wherein, secondary carrier activation instruction is used to indicate activation secondary carrier, and there are mapping relations between secondary carrier activation instruction and the target TTI of secondary carrier；UE determines the target TTI of the secondary carrier according to the mapping relations between secondary carrier activation instruction and the target TTI of the secondary carrier.In this method, UE is after receiving secondary carrier activation, pass through the mapping relations between secondary carrier activation instruction and the target TTI of secondary carrier, determine the target TTI of secondary carrier, a switching command, and the technical solution of the TTI switching command separately send of secondary carrier activation instruction and secondary carrier are configured with each carrier wave in the prior art in multiple carrier waves It compares, the switching command for secondary carrier can be saved, to save the switching command for multicarrier configuration, and then the number for the HARQ message that UE is replied to base station is saved, to save signaling overheads.

Fourth aspect provides a kind of UE, and applied in the system for supporting multi-transceiver technology, multi-transceiver technology supports at least two Transmission Time Interval TTI combination, and multicarrier includes main carrier and at least one secondary carrier；The UE may include: receiver and processor；Wherein, receiver, for receiving the secondary carrier activation instruction of base station transmission；Wherein, secondary carrier activation instruction is used to indicate activation secondary carrier, and there are mapping relations between secondary carrier activation instruction and the target TTI of secondary carrier.Processor, for determining the target TTI of secondary carrier according to the mapping relations between secondary carrier activation instruction and the target TTI of secondary carrier.Since the UE that fourth aspect provides is used to execute the TTI switching method that the above-mentioned third aspect provides, the attainable beneficial effect of institute can refer to the beneficial effect for the TTI switching method that the third aspect provides, and details are not described herein again.

5th aspect, a kind of TTI switching method is provided, applied in the system for supporting multi-transceiver technology, multi-transceiver technology supports at least two TTI combination, this method may include: the switching command that UE receives base station transmission in preset time window, wherein, there are mapping relations between the target carrier in switching command and multicarrier；Specific: UE receives one or more switching commands of base station transmission in preset time window, wherein there are mapping relations between a target carrier in each switching command and multicarrier, for switching the TTI of the target carrier.Then, UE sends HARQ message to base station；Wherein, HARQ message is used to indicate base station: whether UE is properly received the switching command received in default reception window, that is to say, that the HARQ message can serve to indicate that base station: whether UE is properly received the default window that receives and each switching command received is inscribed.Then, UE determines target TTI according to the switching command received in preset time window.It can be seen that, pass through the concept of introducing preset time window in this method, so that one or more switching commands that UE is received in a preset time window can be sent to base station by a HARQ message, to indicate whether UE is properly received multiple switching command.Exist with UE in the prior art It receives each switching command to compare to base station one HARQ message of transmission later, signaling overheads can be saved.

In a kind of possible design, UE sends HARQ message to base station, may include: UE when the first preset time period since the first moment reaches, sends HARQ message to base station；Wherein, the first moment was where the last one switching command that UE is received in preset time window at the ending of subframe.The possible design provides a kind of transmission mechanism of HARQ message, illustrates and can refer to hereafter with the difference of the transmission mechanism of the HARQ message provided in the prior art, such as can refer to Fig. 6 and Fig. 7.

In a kind of possible design, when this method can also include: that second preset time period of the UE since the first moment reaches, data are sent to base station using target TTI in target carrier；Wherein, the first moment was at the ending of place subframe for the last one switching command that UE is received in preset time window.The possible design provides the determination mechanism of TTI switching entry-into-force time a kind of, illustrates and can refer to hereafter with the difference of the determination mechanism of the TTI switching entry-into-force time provided in the prior art.

In a kind of possible design, it may include: UE in the target carrier being active that UE, which sends data to base station using target TTI in target carrier, send data to base station using target carrier.The possible design provides the specific implementation of the TTI switching for the carrier wave being active.For the carrier wave in deactivation status, TTI can be switched over or without switching.

6th aspect, provides a kind of UE, and applied in the system for supporting multi-transceiver technology, multi-transceiver technology supports at least two Transmission Time Interval TTI combination, which may include: receiver, transmitter and processor.Wherein, receiver, the switching command sent for receiving base station in preset time window；Wherein, there are mapping relations between the target carrier in switching command and multicarrier.Transmitter, for sending HARQ message to base station；Wherein, HARQ message is used to indicate base station: whether UE is properly received the switching command received in default reception window.Processor, for determining target TTI according to the switching command received in preset time window.

In a kind of possible design, sending implement body can be used for: UE sends HARQ message when the first preset time period since the first moment reaches, to base station；Wherein, the first moment was where the last one switching command that UE is received in preset time window at the ending of subframe.

In a kind of possible design, transmitter be can be also used for: when second preset time period of the UE since the first moment reaches, send data to base station using target TTI in target carrier；Wherein, the first moment was at the ending of place subframe for the last one switching command that UE is received in preset time window.

In a kind of possible design, sending implement body can be used for: in the target carrier being active, send data to base station using target carrier.

The UE provided due to any possible design of the 6th aspect or the 6th aspect, corresponding TTI switching method provided in corresponding possible design for executing the 5th aspect or the 5th aspect, therefore, its attainable beneficial effect can refer to the 5th aspect or the 5th aspect corresponding possible design beneficial effect, details are not described herein again.

7th aspect, provides a kind of TTI switching method, and applied in the system for supporting multi-transceiver technology, multi-transceiver technology supports at least two TTI combination, and this method may include: that UE determines that target TTI is combined；Wherein, target TTI combination is any one TTI combination at least two TTI combination；UE sends TTI instruction to base station；Wherein, the mark comprising target TTI combination in TTI instruction, is used to indicate base station on multicarrier, and the data for receiving UE and sending are combined using target TTI.The TTI switching method of any of the above-described aspect offer or the TTI switching method provided in the prior art are to determine that target TTI or target TTI are combined by base station, are then handed down to UE；It is somebody's turn to do the method that this aspect provides one kind to determine that target TTI is combined by UE, then sends TTI instruction to base station.It can be realized the flexible switching to the TTI combination in multi-transceiver technology.

In a kind of possible design, UE determines that target TTI is combined, and may include: UE determines that target TTI is combined according to the UPH of each carrier wave in multicarrier；Wherein, UPH is the maximum allowable transmission power and special used for physical control channel DPCCH code power of UE Ratio.The possible implementation provides the mechanism that a kind of UE determines target TTI combination.

In a kind of possible design, multicarrier may include main carrier and at least one secondary carrier；UE determines that target TTI is combined according to the UPH of each carrier wave in multicarrier, may include: UE after the secondary carrier activation instruction for receiving base station transmission, the target TTI of secondary carrier is determined according to the UPH of secondary carrier；Wherein, secondary carrier activation instruction is for activating secondary carrier.The possible implementation provides the mechanism that a kind of UE determines the target TTI of secondary carrier.

In a kind of possible design, UE sends TTI instruction to base station, may include: that UE is instructed by DPCCH to base station transmission TTI.Exemplary, UE sends TTI instruction to base station by DPCCH, and may include: UE indicates target TTI combination by the bit in the FBI or TFCI that transmit in DPCCH.The possible implementation provides a kind of mechanism of UE transmission TTI instruction.

Eighth aspect provides a kind of UE, and applied in the system for supporting multi-transceiver technology, multi-transceiver technology supports at least two TTI combination, which may include: processor and transmitter.Wherein, processor, for determining that target TTI is combined；Wherein, target TTI combination is any one TTI combination at least two TTI combination.Transmitter, for sending TTI instruction to base station；Wherein, the mark comprising target TTI combination in TTI instruction, is used to indicate base station on multicarrier, and the data for receiving UE and sending are combined using target TTI.

In a kind of possible design, processing implement body can be used for, and determine that target TTI is combined according to the UPH of each carrier wave in multicarrier；Wherein, UPH is the maximum allowable transmission power of UE and the ratio of DPCCH code power.

In a kind of possible design, multicarrier may include main carrier and at least one secondary carrier；UE can also include: receiver, for receiving the secondary carrier activation instruction of base station transmission.In this case, processing implement body can be used for, after receiver receives the secondary carrier activation instruction, the target TTI of secondary carrier is determined according to the UPH of secondary carrier；Wherein, secondary carrier activation instruction is for activating secondary carrier.

In a kind of possible design, send implement body can be used for: by DPCCH to Base station sends TTI instruction.It is exemplary, target TTI combination is indicated by the bit in the FBI or TFCI that transmit in DPCCH.

9th aspect, provides a kind of TTI switching method, and applied in the system for supporting multi-transceiver technology, multi-transceiver technology supports at least two TTI combination, and this method may include: that base station receives the TTI instruction that UE is sent；Wherein, the mark that the target TTI comprising multicarrier is combined in TTI instruction, target TTI are any one TTI combinations at least two TTI combination；The data for receiving UE and sending are combined using target TTI on multicarrier in base station.

Tenth aspect, a kind of base station is provided, applied in the system for supporting multi-transceiver technology, multi-transceiver technology supports at least two TTI combination, which may include: receiver and transmitter, wherein, receiver, for receiving the TTI instruction of UE transmission, the mark that the target TTI comprising multicarrier is combined in TTI instruction, target TTI is any one TTI combination at least two TTI combination；Transmitter, for combining the data for receiving UE and sending using target TTI in multicarrier.It is to be appreciated that the beneficial effect that the technical solution that the 9th aspect or the tenth aspect provide can reach is identical, details are not described herein again.

Another aspect, a kind of UE is provided, function performed by UE, the function in the TTI switching method of any possible design offer of above-mentioned first aspect or first aspect may be implemented in the UE can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more above-mentioned corresponding modules of function.It include processor storage, system bus and communication interface in the structure of the UE in a kind of possible design；The processor is configured as that the UE is supported to execute corresponding function in the above method.The communication interface is used to support the communication between the UE and other network elements (for example, base station).The UE can also include memory, which saves the necessary program instruction of the UE and data for coupling with processor.The communication interface specifically can be transceiver.

Another further aspect, the embodiment of the invention provides a kind of computer storage mediums, computer software instructions corresponding to the TTI switching method that any possible design for storing above-mentioned first aspect or first aspect provides, it includes programs corresponding in any possible design for executing above-mentioned first aspect or first aspect.

Another aspect provides a kind of UE, which may be implemented function performed by UE, the function in the TTI switching method that the above-mentioned third aspect provides can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more above-mentioned corresponding modules of function.It include processor, memory, system bus and communication interface in the structure of the UE in a kind of possible design；The processor is configured as that the UE is supported to execute corresponding function in the above method.The communication interface is used to support the communication between the UE and other network elements (for example, base station).The UE can also include memory, which saves the necessary program instruction of the UE and data for coupling with processor.The communication interface specifically can be transceiver.

Another further aspect, the embodiment of the invention provides a kind of computer storage mediums, for storing computer software instructions corresponding to the TTI switching method that the above-mentioned third aspect provides, it includes programs corresponding in any possible design for executing the above-mentioned third aspect or the third aspect.

Another aspect, a kind of UE is provided, function performed by UE, the function in the TTI switching method of any possible design offer of above-mentioned 5th aspect or the 5th aspect may be implemented in the UE can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more above-mentioned corresponding modules of function.It include processor, memory, system bus and communication interface in the structure of the UE in a kind of possible design；The processor is configured as that the UE is supported to execute corresponding function in the above method.The communication interface is used to support the communication between the UE and other network elements (for example, base station).The UE can also include memory, which saves the necessary program instruction of the UE and data for coupling with processor.The communication interface specifically can be transceiver.

Another further aspect, the embodiment of the invention provides a kind of computer storage mediums, computer software instructions corresponding to the TTI switching method that any possible design for storing above-mentioned 5th aspect or the 5th aspect provides, it includes programs corresponding in any possible design for executing above-mentioned 5th aspect or the 5th aspect.

Another aspect, a kind of UE is provided, function performed by UE, the function in the TTI switching method of any possible design offer of above-mentioned 7th aspect or the 7th aspect may be implemented in the UE can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more above-mentioned corresponding modules of function.It include processor, memory, system bus and communication interface in the structure of the UE in a kind of possible design；The processor is configured as that the UE is supported to execute corresponding function in the above method.The communication interface is used to support the communication between the UE and other network elements (for example, base station).The UE can also include memory, which saves the necessary program instruction of the UE and data for coupling with processor.The communication interface specifically can be transceiver.

Another further aspect, the embodiment of the invention provides a kind of computer storage mediums, computer software instructions corresponding to the TTI switching method that any possible design for storing above-mentioned 7th aspect or the 7th aspect provides, it includes programs corresponding in any possible design for executing above-mentioned 7th aspect or the 7th aspect.

Another aspect, a kind of base station is provided, function performed by base station, the function in the TTI switching method of any possible design offer of above-mentioned 9th aspect or the 9th aspect may be implemented in the base station can also execute corresponding software realization by hardware realization by hardware.The hardware or software include one or more above-mentioned corresponding modules of function.It include processor, memory, system bus and communication interface in the structure of the base station in a kind of possible design；The processor is configured as that the base station is supported to execute corresponding function in the above method.The communication interface is used to support the communication between the base station and other network elements (for example, base station).The base station can also include memory, which saves the necessary program instruction in the base station and data for coupling with processor.The communication interface specifically can be transceiver.

Another further aspect, the embodiment of the invention provides a kind of computer storage mediums, computer software instructions corresponding to the TTI switching method that any possible design for storing above-mentioned 9th aspect or the 9th aspect provides, it includes for executing above-mentioned 9th aspect or the Corresponding program in any possible design of nine aspects.

Understandably, any UE of above-mentioned offer or base station or computer storage medium are used to execute TTI switching method presented above, therefore, attainable beneficial effect can refer to the beneficial effect in corresponding model update method presented above, details are not described herein again.

Detailed description of the invention

A kind of system architecture diagram that Fig. 1 is applicable in by technical solution provided in an embodiment of the present invention；

Fig. 2 is a kind of interaction schematic diagram of TTI switching method provided in an embodiment of the present invention；

Fig. 3 is a kind of interaction schematic diagram of TTI switching method provided in an embodiment of the present invention；

Fig. 4 is a kind of interaction schematic diagram of TTI switching method provided in an embodiment of the present invention；

Fig. 5 is a kind of interaction schematic diagram of TTI switching method provided in an embodiment of the present invention；

Fig. 6 is a kind of schematic diagram of the transmission mechanism for HARQ message that the prior art provides；

Fig. 7 is a kind of schematic diagram of the transmission mechanism of HARQ message provided in an embodiment of the present invention；

Fig. 8 is a kind of interaction schematic diagram of TTI switching method provided in an embodiment of the present invention；

Fig. 9 is a kind of structural schematic diagram of UE provided in an embodiment of the present invention；

Figure 10 is a kind of structural schematic diagram of UE provided in an embodiment of the present invention；

Figure 11 is a kind of structural schematic diagram of UE provided in an embodiment of the present invention；

Figure 12 is a kind of structural schematic diagram of UE provided in an embodiment of the present invention；

Figure 13 is a kind of structural schematic diagram of UE provided in an embodiment of the present invention.

Specific embodiment

This application provides a kind of TTI switching method and apparatus, and applied in the system for supporting multi-transceiver technology, which supports at least two TTI combination；A kind of its basic principle of implementation is: a TTI combination is indicated by a switching command, so that the switching for the TTI combination supported multi-transceiver technology is realized, in this way, in the TTI of multiple carrier waves In the case where switching simultaneously, base station only needs to send a switching command to UE, UE only needs to reply a HARQ message to base station, therefore, with in the prior art in the case where the TTI of multiple carrier waves switches simultaneously, base station, which needs to send multiple switching command technical solutions to UE, to be compared, and signaling overheads can be saved.

The system that technical solution provided by the present application is applicable in is as shown in Figure 1, including one or more base stations and the one or more UE connecting with each base station in system shown in FIG. 1, wherein is to be illustrated in Fig. 1 by taking a base station connects multiple UE as an example.

Wherein, which can be various communication systems, such as current 2G, 3G, 4G communication system and next generation communication system.For example, UMTS, GPRS (general packet radio service, General Packet Radio Service), long term evolution (long term evolution, LTE) system and other such communication systems.

UE is a kind of terminal device, can be mobile terminal equipment, is also possible to immovable terminal device.The equipment is mainly used for receiving or sending business datum.UE can be distributed in network, UE has different titles in different networks, such as: terminal, mobile station, subscriber unit, platform, cellular phone, personal digital assistant, radio modem, wireless telecom equipment, handheld device, laptop computer, wireless phone, wireless local loop platform etc..UE can be communicated through wireless access network (radio access network, RAN) (i.e. the access part of cordless communication network) with one or more core nets, such as voice and/or data are exchanged with wireless access network.

Base station is a kind of wireless access network that is deployed in provide the device of wireless communication function.Such as, base station is base radio transceiver station (base transceiver station in 2G network, BTS), base station is known as node B (NodeB) in 3G network, the equipment that base station functions are provided in 4G network includes the node B (evolved NodeB, eNB) of evolution, in a wlan, the equipment for providing base station functions is access point (access point, AP).Base station can also be known as access point, node, node B, evolution node B or some other network entity, and may include the above network entity function in some or all of functions.Base station can be communicated by air interface with wireless terminal.The communication can by one or more sectors come It carries out.

Hereinafter it is illustrated so that technical solution provided by the present application is applied in UMTS as an example.HSUPA technology in UMTS can support UE and base station to carry out uplink communication using single-carrier technology or multi-transceiver technology.It should be noted that the specific example of the application is illustrated so that multicarrier is dual carrier as an example.

Wherein, HSUPA technology can support one or more TTI.Exemplary, the TTI that single-carrier technology is supported can include but is not limited to: 2msTTI, 10msTTI etc.；The TTI combination of dual carrier technical support can include but is not limited to: 2ms+2msTTI combination, 2ms+10msTTI combination, 10ms+10msTTI combination etc..Wherein, 2ms+10msTTI combination can be there are two types of meaning, and a kind of to indicate that the TTI on main carrier is 2ms, the TTI in secondary carrier is 10ms；Another kind indicates that the TTI on main carrier is 10ms, and the TTI in secondary carrier is 2ms；In actual implementation, the 2ms+10msTTI that can make an appointment between base station and some UE, which is combined, indicates one or both of both meanings.In addition, can also combine 10ms+2msTTI and be considered: the TTI of main carrier is 10ms, and the TTI of secondary carrier is 2ms when specific implementation；And by the TTI of main carrier be 2ms, the TTI of secondary carrier is that the TTI group of 10ms shares 2ms+10msTTI combination and indicates.

Wherein, main carrier refers to uplink main carrier, specific: if UE uses single-carrier technology, the carrier wave used is exactly main carrier；If UE uses multi-transceiver technology, uplink main carrier refers to and carrier wave used by the E-DCH of the associated serving E-DCH cell in serving HS-DSCH cell.Secondary carrier refers to carrier wave used by upstream auxiliary carriers, in particular to E-DCH with the associated serving E-DCH cell in auxiliary serving HS-DSCH cell.If UE using multi-transceiver technology, which carrier wave as secondary carrier is indicated by high level as which carrier wave of main carrier.

In different scenes, multi-transceiver technology can support that a kind of TTI is combined or fixed several TTI are combined.For example, in some scenarios, dual carrier technology can only support 2ms+2msTTI combination, 2ms+2msTTI combination and 2ms+10msTTI combination can also be supported.

UE under same base station can send data to the base station using single-carrier technology, can also send data to the base station using multi-transceiver technology；Wherein, different TTI can be used using the different UE of single-carrier technology and sends data to base station, data can be sent to base station using different TTI on different carrier waves using the different UE of multi-transceiver technology.

It should be noted that " multiple " in the application refer to two or more." first ", " second " etc. do not do any other restriction merely to clearer explanation."and/or" is only a kind of incidence relation for describing affiliated partner, indicates may exist three kinds of relationships, for example, A and/or B, can indicate: individualism A exists simultaneously A and B, these three situations of individualism B.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".The TTI of carrier wave refers to the TTI that the carrier wave upper signal channel uses, and for UMTS, which refers to E-DCH；If explanation is not added, " secondary carrier " in the application refers to the secondary carrier on up direction.

With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out exemplary description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.

As shown in Fig. 2, being a kind of interaction schematic diagram of TTI switching method provided in an embodiment of the present invention.Method shown in Fig. 2 can be applied in the system for supporting multi-transceiver technology, and multi-transceiver technology supports at least two TTI combination.Method shown in Fig. 2 may include:

S101: base station sends switching command to UE；Wherein, which is used to indicate TTI switching, and the switching command combine with the target TTI that multi-transceiver technology is supported between there are mapping relations, target TTI combination is that a kind of TTI that multi-transceiver technology is supported is combined.

Specific: base station can send switching command to UE on hs-scch.Optionally, which is HS-SCCH order hereinafter, is also possible to the coded combination reserved in HS-SCCH order.Certainly, when specific implementation, which is also possible to a kind of switching command newly defined.

Wherein, the base station in S101 can be any one base station in system；UE in S101 can be any one UE under the base station.

When specific implementation, how the embodiment of the present invention generates switching command to base station, and is triggered under what circumstances to UE and send the specific implementation of switching command without limiting.For example, base station can be stored in advance each switching command combined with each TTI between mapping relations constitute mapping relations set；Then, according to the ability of the UE UPH selection target TTI combination and up-link carrier technology and/or UE reported, and determine that target TTI combines corresponding switching command based on the mapping relations set, and the switching command is sent to UE.Wherein, UPH is the english abbreviation of UE transmission power headroom, the maximum allowable transmission power of specifically UE and Dedicated Physical Control Channel (dedicated physical control channel, DPCCH) the ratio of code power, i.e., wherein, Pmax, tx=min { Maximum allowed UL TX Power, Pmax }, Maximum allowed UL TX Power is the maximum uplink transmission power as defined in UTRAN, and Pmax is the UE peak power output according to as defined in UE power grade.PDPCCH is the power of UE transmitting DPCCH.

S102:UE receives the switching command that base station is sent.

Specific: UE receives the switching command of base station transmission on hs-scch.

S103:UE combined according to the switching command with target TTI between mapping relations, determine target TTI combine.

When specific implementation, UE can be stored in advance each switching command combined with each TTI between mapping relations constitute mapping relations set, in this way, the corresponding TTI combination (i.e. target TTI combination) of the switching command can be inquired in the mapping relations set after UE receives switching command.

Optionally, after S103, this method can also include: that S104:UE is combined using target TTI to base station transmission data on multicarrier.Specifically, UE after having correctly received switching command (i.e. to switching command successfully decoded), is combined to base station using target TTI on multicarrier and is sent data.Exemplary, UE is combined to base station using target TTI on the E-DCH of multicarrier and is sent data.

TTI switching method provided in an embodiment of the present invention, applied in the system for supporting multi-transceiver technology, which can support at least two TTI to combine, and this method passes through one A switching command indicates a TTI combination, to realize the switching for the TTI combination supported multi-transceiver technology, in this way, in the case where the TTI of multiple carrier waves switches simultaneously, base station only needs to send a switching command to UE, and UE only needs to reply a HARQ message to base station, therefore, with in the prior art in the case where the TTI of multiple carrier waves switches simultaneously, base station, which needs to send multiple switching command technical solutions to UE, to be compared, and can save signaling overheads.

Optionally, S104 may include: UE on the carrier wave being active in multicarrier, using the TTI of the carrier wave being active in target TTI combination, send data to base station.

When specific implementation, when UE sends data to base station using multi-transceiver technology, the partial carrier wave in the multicarrier may be at state of activation, and other carrier waves are active；Alternatively, each carrier wave in the multicarrier is in state of activation.In the optional implementation, UE can only switch the TTI for the carrier wave being active after determining target TTI combination；For the carrier wave in deactivation status, UE can switch without TTI, in this way, UE sends data to base station still according to original TTI on these carrier waves after these carrier waves for being in deactivation status are activated；Alternatively, UE can carry out TTI switching for the carrier wave in deactivation status, in this way, UE sends data to base station using the TTI after switching on these carrier waves after these carrier waves for being in deactivation status are activated.It is exemplary, it is assumed that main carrier is active, and secondary carrier is in deactivation status, and current time, and the TTI of main carrier and secondary carrier is 2ms, and target TTI group is combined into 10ms+10ms；In this case, the TTI of main carrier only can be switched to 10ms by 2ms by UE, i.e. UE sends data to base station using 10msTTI on main carrier, in this way, UE still sends data to base station using 2msTTI in secondary carrier after secondary carrier is activated；Alternatively, in this way, UE sends data to base station using 10msTTI on main carrier, and after secondary carrier is activated, UE sends data to base station in secondary carrier 10msTTI in this case, the TTI of main carrier and secondary carrier can be switched to 10ms by 2ms by UE.

Optionally, the target TTI that the switching command in S101 is also supported with single-carrier technology Between there are mapping relations, wherein target TTI can be any one TTI that single-carrier technology is supported.In this case, S103 may include: as shown in Fig. 3 (Fig. 3 is being drawn based on Fig. 2)

S103': if the UE using multi-transceiver technology, the UE combined according to the switching command with the target TTI that multi-transceiver technology is supported between mapping relations, determine target TTI combine.

When specific implementation, the the first mapping relations set and each switching command that mapping relations between each TTI that each switching command can be stored in advance in base station and UE and single-carrier technology is supported are constituted combine with each TTI that multi-transceiver technology is supported between mapping relations composition the second mapping relations set.In addition, base station and UE can be saved using the first mapping relations set and the second mapping relations set as two mapping relations set when specific implementation, can also be saved using the first mapping relations set and the second mapping relations set as a mapping relations set.

For supporting the single-carrier technology of two kinds of TTI of 2msTTI and 10msTTI, base station sends HS-SCCH order to UE by HS-SCCH；UE switches over current TTI according to the HS-SCCH order and table 1 that receive.Wherein, HS-SCCH order may include following field:

Extended order type (2bits) (explosion command type): xeodt, 1, xeodt, 2；

Order type (3bits) (command type: xodt, 1, xodt, 2, xodt, 3；

Order (3bits) (order): xord, 1, xord, 2, xord, 3；

UE identity (16bits) (UE mark): xue, 1, xue, 2 ..., xue, 16.

The specific implementation and related description of HS-SCCH order can be as shown in table 1:

Table 1

When realizing that the TTI in single-carrier technology switches using table 1, since only there are mapping relations between a kind of carrier technology (i.e. single-carrier technology) for one of table 1 switching command (i.e. coded combination), therefore, UE is after receiving HS-SCCH order, which kind of do not need to judge the UE using carrier technology, so that it may the TTI after directly determining switching.However, in the optional implementation, due to a kind of switching command can with a variety of carrier technology (such as, single-carrier technology and multi-transceiver technology) between there are mapping relations, therefore, when specific implementation, UE is it needs to be determined that using single-carrier technology or multi-transceiver technology, so that it is determined which kind of mapping relations switching command expression is.

It is exemplary, by taking the switching command is HS-SCCH order as an example, it is based on table 1, the specific implementation and related description of the HS-SCCH order in the optional implementation can be as shown in table 2.Wherein, table 2 is illustrated so that dual carrier technical support 2ms+2msTTI combination and 2ms+10msTTI group amount to two kinds of TTI combinations as an example.

Table 2

In table 2, switching command can be 11011000 or 11011001.There are mapping relations between " switching to 10msTTI from 2msTTI " in table 2, in switching command 11011000 and single-carrier technology, and with the target TTI in dual carrier technology, specially 2ms+10msTTI combine, between there are mapping relations.There are mapping relations between " switching to 2msTTI from 10msTTI " in switching command 11011001 and single-carrier technology, and with the target TTI in dual carrier technology, specially 2ms+2msTTI combine, between there are mapping relations.

Based on table 2, if switching command is 11011000, and UE uses dual carrier technology, then the combination of target TTI determined by UE is 2ms+10msTTI combination；If switching command is 11011001, and UE uses dual carrier technology, then the combination of target TTI determined by UE is 2ms+2msTTI combination.

In the optional implementation, the switching command of the switching TTI combination in multi-transceiver technology has been multiplexed the switching command for switching TTI in single-carrier technology, in such manner, it is possible to the type of the switching command between base station and UE be reduced, to improve the decoding performance of UE.Concrete reason is as follows: in actual implementation, in S101, base station needs to encode switching command before sending switching command to UE；Corresponding, in S102, the switching command that UE is received is substantially the switching command after encoding, and UE needs first decode the switching command after the coding, can just obtain switching command.However, the type of switching command is more, after UE receives the switching command after encoding, the switching command after the coding is decoded as other and is cut The probability for changing instruction is higher, and decoding success rate is lower, i.e., decoding performance is with regard to poor.Therefore, in the optional implementation, the type of the switching command between base station and UE can be reduced, to improve the decoding performance of UE.

Optionally, there are mapping relations between the target TTI that above-mentioned switching command is also supported with single-carrier technology, in this case, as shown in figure 3, this method can also include:

S105: if the UE, using single carrier, the mapping relations between target TTI which is supported according to the switching command and single-carrier technology determine target TTI.

After S105, this method can also include: that S106:UE sends data to base station using target TTI on single carrier.Exemplary, UE sends data to base station using target TTI on the E-DCH of single carrier.

2msTTI (i.e. current TTI) is switched to 10msTTI if the HS-SCCH order that UE is received is 11011000 based on table 2, it may be assumed that subsequent UE sends data to base station using 10msTTI；If the HS-SCCH order that UE is received is 00011001,10msTTI (i.e. current TTI) is switched to 2msTTI, it may be assumed that subsequent UE sends data to base station using 2msTTI.

Optionally, the switching command with preset current TTI combine between there are mapping relations, preset current TTI combination combined with target TTI between there are mapping relations.In this case, it is to preset current TTI combination that if S103, which may include: the currently employed TTI combination of UE, according to preset current TTI combination combine with target TTI between mapping relations, determine target TTI combination.

Wherein, the switching command can with it is one or more preset current TTI combine between there are mapping relations, different default current TTI can between same target TTI there are mapping relations, can also be combined with different target TTI between there are mapping relations." preset current TTI combination " in the optional implementation can be presets current TTI and combines between the switching command there are any one of mapping relations.

By taking the switching command is HS-SCCH order as an example, switching command with it is a kind of preset current TTI combine before there are a kind of example of mapping relations is as shown in table 3, wherein table 3 In be by dual carrier technical support 2ms+2msTTI combination and 2ms+10msTTI combination for be illustrated.It should be noted that following Table 3~7 are illustrated so that the switching command in multi-transceiver technology is multiplexed the switching command (including fractional reuse or whole multiplexings) in single-carrier technology shown in table 1 as an example.

Table 3

In table 3, switching command 11011000 is combined between (preset current TTI combination) with 2ms+2msTTI there are mapping relations, and 2ms+2msTTI combination combines between (i.e. target TTI combination) that there are mapping relations with 2ms+10msTTI.Switching command 11011001 is combined between (preset current TTI combination) with 2ms+10msTTI there are mapping relations, and 2ms+10msTTI combination combines between (i.e. target TTI combination) that there are mapping relations with 2ms+12msTTI.It should be noted that be illustrated by taking the switching command 11011000 and 11011001 in the switching command multiplexing single-carrier technology in multi-transceiver technology as an example in table 3.

By taking the switching command is HS-SCCH order as an example, switching command with it is a kind of preset current TTI combine before there are a kind of example of mapping relations is as shown in table 4, wherein be in table 4 with dual carrier technical support 2ms+2msTTI combination, 2ms+10msTTI combination and It is illustrated for 10ms+10msTTI combination.

Table 4

In table 4, switching command with preset current TTI combine between mapping relations, preset current TTI combination combine with target TTI between the explanations of specific example of mapping relations can refer to the explanation of the specific example about table 3, details are not described herein again.It should be noted that the part switching command in the multi-transceiver technology for being in table 4, for example, switching command 11011000 and switching command 11011001, the switching command being multiplexed in single-carrier technology；Another part switching command has used the reserved coded combination in single-carrier technology.

By taking the switching command is HS-SCCH order as an example, switching command with it is a variety of preset current TTI combine before there are a kind of example of mapping relations is as shown in table 5, it wherein, is illustrated by taking dual carrier technical support 2ms+2msTTI combination and 2ms+10msTTI combination as an example in table 5.

Table 5

In table 5, switching command 11011000 and 2 is preset current TTI and is combined, 2ms+2msTTI combination and 2ms+10msTTI combination, between there are mapping relations；And 2ms+2msTTI combination (preset current TTI combination) combine with 2ms+10msTTI there are mapping relations between (i.e. target TTI combination), 2ms+10msTTI is combined and (preset current TTI to combine) combines between (i.e. target TTI combination) that there are mapping relations with 2ms+2msTTI.It should be noted that be illustrated by taking the switching command 11011000 in the switching command multiplexing single-carrier technology in multi-transceiver technology as an example in table 5.

By taking the switching command is HS-SCCH order as an example, switching command with it is a variety of preset current TTI combine before there are a kind of example of mapping relations is as shown in table 6, it wherein, is illustrated by taking dual carrier technical support 2ms+2msTTI combination, 2ms+10msTTI combination and 10ms+10msTTI combination as an example in table 6.

Table 6

In table 6, switching command 11011000 and 3 is preset current TTI and is combined, 2ms+2msTTI combination, 2ms+10msTTI combination and 10ms+10msTTI combination, between there are mapping relations；And 2ms+2msTTI combination (preset current TTI combination) combines between (i.e. target TTI combination) that there are mapping relations with 2ms+10msTTI, 2ms+10msTTI combination (preset current TTI combination) combine with 2ms+2msTTI there are mapping relations between (i.e. target TTI combination), and 10ms+10msTTI is combined and (preset current TTI to combine) combines between (i.e. target TTI combination) that there are mapping relations with 2ms+10msTTI.

Switching command 11011001 and 3 is preset current TTI and is combined, 2ms+2msTTI combination, 2ms+10msTTI combination and 10ms+10msTTI combination, between there are mapping relations；And 2ms+2msTTI combination (presetting current TTI combination) is combined with 10ms+10msTTI there are mapping relations between (i.e. target TTI combination), 2ms+10msTTI is combined (i.e. Preset current TTI combination) combine with 10ms+10msTTI there are mapping relations between (i.e. target TTI combination), 10ms+10msTTI is combined and (preset current TTI to combine) combines between (i.e. target TTI combination) that there are mapping relations with 2ms+2msTTI.

It should be noted that be illustrated by taking the switching command 11011000 and 11011001 in the switching command multiplexing single-carrier technology in multi-transceiver technology as an example in table 6.

By taking the switching command is HS-SCCH order as an example, switching command with it is a variety of preset current TTI combine before there are a kind of example of mapping relations is as shown in table 7, it wherein, is illustrated by taking dual carrier technical support 2ms+2msTTI combination, 2ms+10msTTI combination, 10ms+2msTTI combination and 10ms+10msTTI combination as an example in table 7.

Table 7

It should be noted that contrast table 3 and table 5, alternatively, contrast table 4 and table 6 it is found that if switching command with it is a variety of preset current TTI combine between there are mapping relations, the type of switching command can be saved.

It is further to note that, it is to be illustrated so that multi-transceiver technology is dual carrier technology as an example in above-mentioned specific example, understandably, in actual implementation, if the carrier wave comprising 3 carrier waves or 3 or more in multi-transceiver technology, the switching command in the multi-transceiver technology can also be multiplexed the switching command in above-mentioned each table.It include 3 carrier waves in multi-transceiver technology Or in the system of 3 or more carrier waves, if all codings in above-mentioned each table are not enough to indicate that each switching command combines the mapping relations between switching (such as switching to 10ms+10msTTI combination from 2ms+10msTTI combination) with TTI, can be realized by way of increasing coded combination.

As shown in figure 4, being a kind of interaction schematic diagram of TTI switching method provided in an embodiment of the present invention.Method shown in Fig. 4 is applied in the system for supporting multi-transceiver technology, and multi-transceiver technology supports at least two TTI combination, and multicarrier includes main carrier and at least one secondary carrier；This method may comprise steps of S201-S204:

S201: base station sends secondary carrier activation instruction to UE；Wherein, secondary carrier activation instruction is used to indicate activation secondary carrier, and there are mapping relations between secondary carrier activation instruction and the TTI of secondary carrier.

Specific: base station can send secondary carrier activation instruction to UE on hs-scch；In this case, secondary carrier activation instruction can be HS-SCCH order above.It should be noted that HS-SCCH order can have many functions, such as the function of switching TTI (referring to the various embodiments described above)；And the function of activation/deactivation secondary carrier.Above pass through HS-SCCH order instruction switching TTI；Secondary carrier activation/deactivation, in particular to the handoff functionality to secondary carrier state are indicated by HS-SCCH order in the present embodiment.

Wherein, the base station in S201 can be any one base station in system；UE in S201 can be any one UE under the base station.When specific implementation, how the embodiment of the present invention generates secondary carrier activation instruction to base station, and is triggered under what circumstances to UE and send the specific implementation of secondary carrier activation instruction without limiting.Such as, it base station can be according to the TTI for the UPH message selection secondary carrier that UE is reported, then the secondary carrier activation instruction during obtaining this activation secondary carrier according to the mapping relations between secondary carrier activation instruction and the TTI of secondary carrier, then sends the secondary carrier activation instruction to UE.It should be noted that the difference of UPH and UPH above in the present embodiment are, P used in the UPH in the present embodiment_DPCCHIt is UE transmitting DPCCH initial power.

For using 4 carrier waves on down direction, for activation/deactivation secondary carrier The specific implementation and explanation of HS-SCCH order can be as shown in table 8, wherein includes the mapping relations between secondary carrier activation instruction and the TTI of secondary carrier in table 8.

Table 8

In table 8, secondary carrier activation instruction can be any one following coded combination: 01 001 011,01 001 101,01 010 000,01 010 011,01 010 100,01 010 101,01 010 110,01 010 111.

As shown in Table 8, there are mapping relations between secondary carrier activation instruction and the activation/deactivation state of 3 secondary carriers and the state of activation of the secondary carrier on up direction of down direction, and there are mapping relations between the TTI in secondary carrier.It is exemplary, in table 8, when secondary carrier activation instruction is 01 001 011, indicate that 3 secondary carriers on down direction are successively in " state of activation, deactivation status, deactivation status ", and on up direction Secondary carrier is active, and in this case, the TTI in upstream auxiliary carriers is 2ms.Other illustrate that details are not described herein again as such.

It should be noted that in the prior art, mapping relations are not present between secondary carrier activation instruction and the TTI of secondary carrier.

S202:UE receives the secondary carrier activation instruction that base station is sent.

Specifically, UE can receive the secondary carrier activation instruction of base station transmission on hs-scch.

S203:UE determines the target TTI of secondary carrier according to the mapping relations between secondary carrier activation instruction and the target TTI of secondary carrier.

Based on example shown in table 8, when secondary carrier activation instruction be 01001011,01001101,01010000,01010011 any one when, the target TTI of secondary carrier determined by UE is 2msTTI；When secondary carrier activation instruction be 01010100,01010101,01010110,01010111 any one when, the target TTI of secondary carrier determined by UE is 10msTTI.

Optionally, this method can also include: S204:UE according to secondary carrier activation instruction activation secondary carrier, and utilize identified TTI to send data to base station in secondary carrier.

Based on the example in S203, UE activates secondary carrier according to secondary carrier activation instruction, and when identified TTI is 2msTTI, and UE sends data to base station using 2msTTI in secondary carrier, and base station receives the data of UE transmission in secondary carrier using 2msTTI；When identified TTI is 10msTTI, UE sends data to base station using 10msTTI in secondary carrier, and base station receives the data of UE transmission in secondary carrier using 10msTTI.

It should be noted that, it is to use 4 carrier waves on down direction in table 8, and be illustrated for the secondary carrier support 2msTTI and 10msTTI on up direction, when specific implementation, there may be secondary carriers also to support other TTI, or using the scene more than 4 carrier waves (such as 8 carrier waves) on down direction, in this case, can be being realized by way of extending the bit of secondary carrier activation instruction.It is exemplary, when HS-SCCH order uses type1 (i.e. Class1), New Data indicator (1bit) field can be used；Work as HS-SCCH When order uses type3 or type4, Transport-block size information (6bits) field can be used.

TTI switching method provided in an embodiment of the present invention, UE is after receiving secondary carrier activation, pass through the mapping relations between secondary carrier activation instruction and the TTI of secondary carrier, the target TTI of secondary carrier, a switching command is configured with each carrier wave in the prior art in multiple carrier waves, and secondary carrier activation instruction is compared with the technical solution of the TTI switching command separately send of secondary carrier, the switching command for secondary carrier can be saved, to save the switching command for being multicarrier configuration, and then the number for the HARQ message that UE is replied to base station is saved, to save signaling overheads.

In addition, the flexibility of secondary carrier TTI switching method is higher, and saves the entry-into-force time of TTI configuration process compared with the scheme of the TTI of the switching secondary carrier of following offers.It should be noted that in the prior art, can switch the TTI of secondary carrier in the following ways: secondary carrier original state is deactivation status, TTI is 2ms when being switched to state of activation from deactivation status；If secondary carrier is in non-initial state, UE can save the TTI configuration before deactivating, TTI configuration before keeping when being switched to state of activation before primary deactivation, the TTI before even deactivating is 10ms, then TTI when secondary carrier activates next time is still 10ms；If the TTI before deactivating is 2ms, then TTI when secondary carrier activates next time is still 2ms.The TTI of the secondary carrier of this state of activation is influenced by the TTI of the secondary carrier of last state of activation in this method, therefore this method has limitation, is unable to flexible configuration；And, this method is after activating secondary carrier, need to switch by a switching command again the TTI of the secondary carrier, and there is an entry-into-force time when executing any one operation (including secondary carrier activation and TTI switching) in UE, therefore, the entry-into-force time of the TTI handoff procedure of this method is longer.

And, optionally, secondary carrier activation instruction and switching command can be indicated with HS-SCCH order, according to the regulation of 3GPP agreement, UE needs after receiving each HS-SCCH order, a HARQ message is sent to base station, with signals base: whether UE is properly received the HS-SCCH order；That is, if UE receives the auxiliary load of base station transmission Wave activation instruction and the switching command switched over for the TTI to the secondary carrier, then UE needs to reply two HARQ message to base station.Using method provided in this embodiment, UE only needs to reply a HARQ message to base station, to save signaling overheads.

As shown in figure 5, being the interaction schematic diagram of another kind TTI switching method provided in an embodiment of the present invention.Method shown in fig. 5 is applied in the system for supporting multi-transceiver technology, and multi-transceiver technology supports at least two TTI combination.Optionally, the switching command in the present embodiment can be HS-SCCH order above, and associated description can refer to above.This method may include:

S301: base station sends switching command to UE.Wherein, there are mapping relations between the target carrier in switching command and multicarrier.

Specifically, base station sends one or more switching commands to UE, wherein, there are there are mapping relations (as shown in table 1) between mapping relations or each switching command and " the switching to target TTI from current TTI " of a carrier wave between each switching command and the target TTI of a carrier wave.

In the present embodiment, a switching command can be configured for each carrier wave in multicarrier, such as, for dual carrier technology, a HS-SCCH order is respectively configured for main carrier and secondary carrier, wherein, the HS-SCCH order for main carrier configuration is used to control the switching of the TTI of main carrier, is used to control the switching of the TTI of secondary carrier for the HS-SCCH order that secondary carrier configures.

Exemplary, for dual carrier technology, base station can send switching command 1 to UE at the t1 moment, send switching command 2 to UE at the t2 moment；Wherein, there are mapping relations between switching command 1 and " the switching to 10msTTI from 2msTTI " of main carrier, and there are mapping relations between switching command 2 and " the switching to 2msTTI from 10msTTI " of secondary carrier.

S302:UE receives the switching command of base station transmission in preset time window.

Specifically, UE is in the inscribed one or more switching commands for receiving base station transmission of preset time window.Wherein, the preset time window can be UE receive after a switching command (exemplary to can be HS-SCCH order) certain a period of time (for example, X time slot or Subframe or millisecond etc.)；Alternatively, can be certain a period of time of UE since at the time of starting to receive switching command (exemplary to can be HS-SCCH order), in this case, preset time window includes the time that UE receives the 1st switching command.The embodiment of the present invention is to the size of preset time window without limiting.In actual implementation, the size of the preset time window can be determined according to factors such as the UE time delays allowed.

S303:UE sends HARQ message to base station, and to indicate base station: whether UE is properly received the switching command received in default reception window.

Where it is assumed that " 1 " is used to indicate to receive successfully, " 0 " is used to indicate without receiving successfully；So, based on the example in S301, if UE is properly received switching command 1 and switching command 2, the HARQ message in S303 can be indicated are as follows: 11；If UE is properly received switching command 1, it is not properly received switching command 2, then HARQ message can indicate are as follows: 10.

It should be noted that, indicate whether UE is properly received a HS-SCCH order using a HARQ message in the prior art, wherein, including HARQ-ACK (acknowledgement, confirm character) message and HARQ-NACK (Non-acknowledgement, non-acknowledgement character) message；HARQ-ACK message indicates to be properly received, and the expression of HARQ-NACK message is not properly received.It is to indicate whether UE is properly received all HS-SCCH order received in a preset time window with a HARQ message in the embodiment.

S304:UE determines target TTI according to the switching command received in preset time window.

Specifically, if UE receives multiple switching commands in preset time window, it is determined that the corresponding target TTI of each switching command.Based on the example in S301, UE is it needs to be determined that the target TTI (i.e. 10ms) of the main carrier and target TTI (i.e. 2ms) of secondary carrier.

Optionally, if UE receives multiple switching commands in preset time window, in S304, UE can determine the corresponding target TTI of each switching command after being properly received all switching commands received in preset time window.In addition, this method can be with If including: any one or more switching commands that UE is not properly received in the multiple switching commands received in preset time window, S304 is not executed, that is to say, that in this case, all switching commands received in the preset time window do not come into force.

Optionally, if UE receives multiple switching commands in preset time window, in S304, UE can determine the corresponding target TTI of the one or more switching command after being properly received the one or more switching commands received in preset time window.In addition, the one or more switching command does not come into force if UE is not properly received the one or more switching commands received in preset time window.

Optionally, this method can also include: that S305:UE sends data to base station using target TTI in target carrier.It is specific: if in S302, UE receives multiple switching commands in preset time window, and multiple switching command for switching over to the TTI of multiple carrier waves, then in S304, target TTI determined by UE is the target TTI of each carrier wave in multiple carrier wave；In this case, UE sends data to base station on each carrier wave in multiple carrier wave, using the target TTI of the carrier wave in S305.

In TTI switching method provided in an embodiment of the present invention, by the concept for introducing preset time window, so that one or more switching commands that UE is received in a preset time window can be sent to base station by a HARQ message, to indicate whether UE is properly received multiple switching command.Compared with UE in the prior art sends a HARQ message to base station after receiving each switching command, signaling overheads can be saved.

Optionally, S303 may include: UE when the first preset time period since the first moment reaches, and send HARQ message to base station；Wherein, the first moment was where the last one switching command at least two switching commands that UE is received in preset time window at the ending of subframe.

It should be noted that in the prior art, base station may be sent to UE for the HS-SCCH order of main carrier or for the HS-SCCH order of secondary carrier, in this way, base station needs to receive the HARQ message that UE is sent in different moments in different moments；In order to make base station know received HARQ message be response for which HS-SCCH order, HS-SCCH There are sequential relationships between order and HARQ information.In 3GPP agreement, which is that the data of high-speed physical downlink shared channel (HS-PDSCH) (high speed physical downlink shared channel, HS-PDSCH) are indirectly reflected.Specific: 2 time slots of the UE after receiving the subframe section start of HS-SCCH order begin trying to receive the data (i.e. the section start of the 0th work song frame of HS-PDSCH) of HS-PDSCH, at the ending from the 0th work song frame of HS-PDSCH after about 7.5 time slots send HARQ message to base station；This shows to differ about 12.5 time slots between HS-SCCH order and HARQ message indirectly, specifically :+1 HS-PDSCH subframe of 2 time slots (specially 3 time slots)+about 7.5 time slot=12.5 time slots.

As shown in fig. 6, being the schematic diagram of the transmission mechanism of the HARQ message provided in the prior art.It is that uplink main carrier is controlled with the HS-SCCH order of HS-DSCH serving cell in Fig. 6, it is illustrated for the HS-SCCH order control upstream auxiliary carriers of HS-DSCH auxiliary serving cell, wherein, HS-DSCH serving cell can be understood as downlink main carrier to carry, and HS-DSCH auxiliary serving cell can be understood as downlink secondary carrier.In Fig. 6, UE starts to receive the HS-SCCH order for being directed to main carrier in the section start of the 0th work song frame of the HS-SCCH of main carrier, starts to receive the HS-SCCH order for being directed to secondary carrier in the section start of the 1st work song frame of the HS-SCCH of secondary carrier.It should be noted that the HS-DPCCH in Fig. 6 is the english abbreviation of High-Speed Dedicated Physical Control Channel (High speed dedicated physical control channel), for showing that UE sends HARQ message to base station on HS-DPCCH.

The optional implementation provides a kind of transmission mechanism of new HARQ message.It is exemplary, based on example shown in fig. 6, under the transmission mechanism, when UE receives about 12.5 time slots after the section start (i.e. HS-SCCH subframe section start) of the subframe where the last one HS-SCCH order in preset time window, HARQ message is sent to base station, as shown in Figure 7.

Optionally, when S305 may include: that second preset time period of the UE since the first moment reaches, data TTI is sent to base station using target TTI in target carrier；Wherein, First moment was where the last one switching command at least two switching commands that UE is received in preset time window at the ending of subframe.

The optional implementation provides the determination mechanism of TTI switching entry-into-force time a kind of.Wherein, the TTI switching entry-into-force time includes two parts: the time that activationary time (being configured by high level) and TTI are reconfigured.Specifically, in the optional implementation, a period of time (i.e. the second preset time period) of timing activationary time is changed at the beginning of the 1st E-DCH frame after the last one switching command (such as HS-SCCH order) in default reception window (i.e. the first moment)；Exemplary, if the ending of the subframe of the last one HS-SCCH order is in the 0th E-DCH subframe, UE starts timing in the section start of the 1st E-DCH subframe.

It should be noted that in the prior art, UE sends data after receiving switching command (such as HS-SCCH order) and switching the entry-into-force time by TTI, using new TTI.Wherein, the TTI switching entry-into-force time includes two parts: the time that activationary time (being configured by high level) and TTI are reconfigured.Wherein, activationary time is a period of time of the timing since UE has received HS-SCCH order (i.e. ending place of the subframe of reception HS-SCCH order)；TTI reconfiguration time is another a period of time (generally 20ms) after activationary time.

Optionally, S305 may include: UE in the target carrier being active, and send data to base station using target carrier.

In the optional implementation, UE can be according to the switching command received in preset time window, the target TTI for determining the corresponding carrier wave of switching command received in the preset time window, is then switched to target TTI for the current TTI of the carrier wave being active in these carrier waves；In addition, UE can switch without TTI for the carrier wave in deactivation status in these carrier waves, TTI switching can also be carried out.Specific example can be with reference to above, and details are not described herein again.

As shown in figure 8, being the interaction schematic diagram of another kind TTI switching method provided in an embodiment of the present invention.Method shown in Fig. 8 is applied in the system for supporting multi-transceiver technology, and multi-transceiver technology supports at least two TTI combination, and this method may comprise steps of:

S401:UE determines that target TTI is combined；Wherein, target TTI combination is any one TTI combination at least two TTI combination.

Wherein, the UE in S401 can be any one UE in system.

S402:UE sends TTI instruction to base station；Wherein, the mark comprising target TTI combination in TTI instruction, is used to indicate base station on multicarrier, and the data for receiving UE and sending are combined using target TTI.

Wherein, the base station in S402 refers to the base station that the UE in S401 is connected.Exemplary, when target TTI combination is 2ms+2msTTI combination, the mark of target TTI combination can be " 00 "；When target TTI combination is 2ms+10msTTI combination, the mark of target TTI combination can be " 01 "；When target TTI combination is 10ms+10ms, the mark of target TTI combination can be " 10 ".Without being limited thereto when specific implementation, bit shared by the mark of target TTI combination can be determined according to the total number for the TTI combination that the system is supported.

S403:UE is combined to base station using target TTI on multicarrier and is sent data.

When due to specific implementation, in S402, UE sends TTI instruction to base station by control channel；In S404, UE sends data to base station by data channel；Also, generally, UE first sends instruction and retransmits data, therefore, can first carry out S402 and execute S403 again, can also execute S403 during executing S402.

S404: base station receives the TTI instruction of UE transmission, and receives the data that UE is sent using target TTI combination.

TTI switching method provided in this embodiment is determined from UE and sends target TTI combination to base station, to realize the flexible configuration to the TTI combination in multi-transceiver technology.

Optionally, to may include: UE determine that target TTI is combined according to the UPH of each carrier wave in multicarrier to S401.Wherein, UPH refers to the maximum allowable transmission power of UE and the ratio of special used for physical control channel DPCCH code power.

It should be noted that the embodiment of the present invention obtains the specific implementation of UPH to the process of UE acquisition UPH and under which kind of trigger condition without limiting, for example, can obtain UPH according to any one method provided in the prior art.In the present embodiment mutually inside the Pass The explanation of appearance can be with reference to above.UE determines that the specific implementation of target TTI combination can determine the specific implementation of target TTI combination similar to base station in the prior art according to UPH according to UPH, and details are not described herein again.

Based on the optional implementation, multicarrier includes main carrier and at least one secondary carrier；Further alternative, UE determines that target TTI is combined according to the UPH of each carrier wave in multicarrier, may include: UE after the secondary carrier activation instruction for receiving base station transmission, the target TTI of secondary carrier is determined according to the UPH of secondary carrier；Wherein, secondary carrier activation instruction is for activating secondary carrier.

Wherein, target TTI combination is made of the TTI of each carrier wave in multicarrier；The further alternative implementation gives the trigger mechanism of the target TTI of determining secondary carrier a kind of.In this implementation, optionally, this method can also include: UE according to secondary carrier activation instruction activation secondary carrier.In S404, in UE and base station on the basis of activating secondary carrier respectively, UE sends data to base station using target secondary carrier in secondary carrier.

Optionally, S402 may include: that UE is instructed by DPCCH to base station transmission TTI.It is further alternative, feedback message (the feedback information that UE is transmitted in DPCCH, FBI the bit instruction target TTI combination) or in transformat combination instruction (transport format combination indicator, TFCI).

It is above-mentioned that mainly scheme provided in an embodiment of the present invention is described from the angle of UE and server interaction.It is understood that containing the corresponding hardware configuration of each function of execution and/or software module in UE or base station to realize above-mentioned each function.Those skilled in the art should be readily appreciated that, module described in conjunction with the examples disclosed in the embodiments of the present disclosure and algorithm steps, and the present invention can be realized with the combining form of hardware or hardware and computer software.Some function is executed in a manner of hardware or computer software driving hardware actually, specific application and design constraint depending on technical solution.Professional technician can use different methods to achieve the described function each specific application, but such implementation should not be considered as beyond the scope of the present invention.

The embodiment of the present invention can carry out function mould to UE or base station according to above method example Two or more functions can also be integrated in a processing module by the division of block for example, each functional module of each function division can be corresponded to.Above-mentioned integrated module both can take the form of hardware realization, can also be realized in the form of software function module.It should be noted that being schematically that only a kind of logical function partition, there may be another division manner in actual implementation to the division of module in the embodiment of the present invention.

Using integrated module, Fig. 9 shows the structural schematic diagram of UE9 a kind of.The UE9 can be UE involved in the above method (such as Fig. 2~5, method shown in Fig. 8) embodiment.The UE9 may include: processing module 901 and communication module 902.Wherein, processing module 901 is for carrying out control management to the work of UE9.Communication module 902 is used to supporting the communication of UE9 Yu other network entities, such as with the communication of base station etc..Optionally, UE9 can also include: memory module 903, execute program and data corresponding to method embodiment either presented above for storing UE9.

In a kind of possible design, processing module 901 is for supporting UE9 to execute the S93 in Fig. 2；Communication module 902 is for supporting UE9 to execute S91, S92 and S94 in Fig. 2；Memory module 903 is used to store UE9 and executes program and data corresponding to each step in Fig. 2.

In alternatively possible design, processing module 901 optionally, is also used to that UE9 is supported to execute the S95 in Fig. 3 for supporting UE9 to execute the S93' in Fig. 3；Communication module 902 optionally, is also used to that UE9 is supported to execute the S96 in Fig. 3 for supporting UE9 to execute S91, S92 and S94 in Fig. 3；Memory module 903 is used to store UE9 and executes program and data corresponding to each step in Fig. 3.

In alternatively possible design, processing module 901 is for supporting UE9 to execute the S203 in Fig. 4 and S204；Communication module 902 is for supporting UE9 to execute S201, S202 and S204 in Fig. 4；Memory module 903 is used to store UE9 and executes program and data corresponding to each step in Fig. 4.

In alternatively possible design, processing module 901 is for supporting UE9 to execute the S302 in Fig. 5 and S304；Communication module 902 for support UE9 execute the S301 in Fig. 5, S303 and S305；Memory module 903 is used to store UE9 and executes program and data corresponding to each step in Fig. 5.

In alternatively possible design, processing module 901 is for supporting UE9 to execute the S401 in Fig. 8；Communication module 902 is for supporting UE9 to execute S401, S403 and S404 in Fig. 8；Memory module 903 is used to store UE9 and executes program and data corresponding to each step in Fig. 8.

It should be noted that above-mentioned each possible design is exemplary, in actual implementation, each module in UE9 can be also used for the other processes for supporting to execute techniques described herein.

Wherein, processing module 901 can be processor or controller, such as it can be central processing unit (central processing unit, CPU), general processor, digital signal processor (digital signal processor, DSP), specific integrated circuit (application-specific integrated circuit, ASIC), field programmable gate array (field programmable gate array, FPGA) either other programmable logic device, transistor logic, hardware component or any combination thereof.It, which may be implemented or executes, combines various illustrative logic blocks, module and circuit described in disclosure of the embodiment of the present invention.The processor is also possible to realize the combination of computing function, such as combines comprising one or more microprocessors, DSP and the combination of microprocessor etc..Communication module 902 can be transceiver, transmission circuit or communication interface etc..Memory module 903 can be memory.

When processing module 901 is processor, communication module 902 is transceiver, and when memory module 903 is memory, UE9 involved in the embodiment of the present invention can be UE10 shown in Fig. 10.

As shown in Figure 10, UE10 may include: processor 1012, transceiver 1013, memory 1011 and bus 1014.Wherein, transceiver 1013, processor 1012 and memory 1011 are connected with each other by bus 1014；Bus 1014 can be Peripheral Component Interconnect standard (peripheral component interconnect, PCI) bus or expanding the industrial standard structure (extended industry standard architecture, EISA) bus etc..Institute Address bus, data/address bus, control bus etc. can be divided by stating bus.Only to be indicated with a thick line in Figure 10, it is not intended that an only bus or a type of bus convenient for indicating.

The step of method in conjunction with described in the disclosure of invention or algorithm, can be realized in a manner of hardware, be also possible to execute the mode of software instruction by processor to realize.Software instruction can be made of corresponding software module, software module can be stored on random access memory (random access memory, RAM), flash memory, read-only memory (read only memory, ROM), Erasable Programmable Read Only Memory EPROM (erasable programmable ROM, EPROM), in the storage medium of Electrically Erasable Programmable Read-Only Memory (electrically EPROM, EEPROM), register, hard disk, mobile hard disk, CD-ROM (CD-ROM) or any other form well known in the art.A kind of illustrative storage medium is coupled to processor, to enable a processor to from the read information, and information can be written to the storage medium.Certainly, storage medium is also possible to the component part of processor.Pocessor and storage media can be located in ASIC.In addition, the ASIC can be located in core network interface equipment.Certainly, pocessor and storage media can also be used as discrete assembly and be present in core network interface equipment.

It as shown in figure 11, is a kind of UE11 provided in an embodiment of the present invention, for the UE11 for executing each step performed by UE in Fig. 2 or Fig. 3, the related description about these steps can be with reference to above.The UE11 is applied in the system for supporting multi-transceiver technology, and multi-transceiver technology supports at least two TTI combination, which may include: receiving module 1101 and determining module 1102.Wherein:

Receiving module 1101, for receiving the switching command of base station transmission；Wherein, switching command be used to indicate TTI switching, and switching command combined with the target TTI that multi-transceiver technology is supported between there are mapping relations；Target TTI combination is one of at least two TTI combination TTI combination.

Determining module 1102 determines that target TTI is combined for the mapping relations between combining according to switching command with target TTI.

Optionally, there are mapping relations between the target TTI that switching command is also supported with single-carrier technology；In this case, determining module 1101 specifically can be used for: if UE using multi-transceiver technology, UE combined according to switching command with the target TTI that multi-transceiver technology is supported between mapping relations, determine target TTI combine.

Optionally, there are mapping relations between the target TTI that switching command is also supported with single-carrier technology；In this case, determining module 1101 can be also used for: if UE, using single-carrier technology, there are mapping relations between the target TTI supported according to switching command and single-carrier technology, determining target TTI.

Optionally, switching command with preset current TTI combine between there are mapping relations, preset current TTI combination combined with target TTI between there are mapping relations；In this case, determining module 1101 specifically can be used for: if the TTI combination that UE is used is to preset current TTI combination, according to preset current TTI combination combine with target TTI between mapping relations, determine target TTI combination.

It is to be appreciated that each module in UE11 provided in an embodiment of the present invention is used to execute TTI switching method provided by figure 2 above or Fig. 3, therefore its attainable beneficial effect of institute can be with reference to above, and details are not described herein again.

It as shown in figure 12, is a kind of UE12 provided in an embodiment of the present invention, for the UE12 for executing each step performed by UE in Fig. 4, the related description about these steps can be with reference to above.The UE12 is applied in the system for supporting multi-transceiver technology, and multi-transceiver technology supports at least two TTI combination, which may include: receiving module 1201 and determining module 1202.Wherein:

Receiving module 1201, for receiving the secondary carrier activation instruction of base station transmission；Wherein, secondary carrier activation instruction is used to indicate activation secondary carrier, and there are mapping relations between secondary carrier activation instruction and the target TTI of secondary carrier.

Determining module 1202, for determining the target TTI of secondary carrier according to the mapping relations between secondary carrier activation instruction and the target TTI of secondary carrier.

It is to be appreciated that each module in UE12 provided in an embodiment of the present invention is for executing TTI switching method provided by texts and pictures 2 or Fig. 4, therefore its attainable beneficial effect of institute can be with reference to above, details are not described herein again.

It as shown in figure 13, is a kind of UE13 provided in an embodiment of the present invention, for the UE13 for executing each step performed by UE in Fig. 5, the related description about these steps can be with reference to above.The UE13 is applied in the system for supporting multi-transceiver technology, and multi-transceiver technology supports at least two TTI combination, which may include: receiving module 1301, sending module 1302 and determining module 1303.Wherein:

Receiving module 1301, the switching command sent for receiving base station in preset time window；Wherein, there are mapping relations between the target carrier in switching command and multicarrier.

Sending module 1302, for sending hybrid automatic repeat-request HARQ message to base station；Wherein, HARQ message is used to indicate base station: whether UE is properly received the switching command received in default reception window.

Determining module 1303, for determining target TTI according to the switching command received in preset time window.

Optionally, sending module 1302 specifically can be used for: when the first preset time period since the first moment reaches, send HARQ message to base station；Wherein, the first moment was where the last one switching command that UE is received in preset time window at the ending of subframe.

Optionally, sending module 1302 can be also used for: when the second preset time period since the first moment reaches, send data to base station using target TTI in target carrier；Wherein, the first moment was at the ending of place subframe for the last one switching command that UE is received in preset time window.

It is to be appreciated that each module in UE13 provided in an embodiment of the present invention is used to execute TTI switching method provided by figure 5 above or Fig. 5, therefore its attainable beneficial effect of institute can be with reference to above, and details are not described herein again.

Those skilled in the art it will be appreciated that in said one or multiple examples, function described in the invention can with hardware, software, firmware or their any combination come It realizes.When implemented in software, these functions can be stored in computer-readable medium or as on computer-readable medium one or more instructions or code transmit.Computer-readable medium includes computer storage media and communication media, and wherein communication media includes convenient for from a place to any medium of another place transmission computer program.Storage medium can be any usable medium that general or specialized computer can access.

Above-described specific embodiment; the purpose of the present invention, technical scheme and beneficial effects are had been further described; it should be understood that; the foregoing is merely a specific embodiment of the invention; it is not intended to limit the scope of protection of the present invention; all any modification, equivalent substitution, improvement and etc. on the basis of technical solution of the present invention, done should all include within protection scope of the present invention.

Claims (16)

1. A kind of Transmission Time Interval TTI switching method, which is characterized in that applied in the system for supporting multi-transceiver technology, the multi-transceiver technology supports at least two TTI combination, which comprises

   User equipment (UE) receives the switching command that base station is sent；Wherein, the switching command be used to indicate TTI switching, and the switching command combined with the target TTI that the multi-transceiver technology is supported between there are mapping relations；The target TTI combination is one of at least two TTI combination TTI combination；

   The UE combined according to the switching command with the target TTI between mapping relations, determine target TTI combination.
2. The method according to claim 1, wherein between the target TTI that the switching command is also supported with single-carrier technology, there are mapping relations；

   The UE combined according to the switching command with the target TTI between mapping relations, determine target TTI combination, comprising:

   If the UE using the multi-transceiver technology, the UE combined according to the switching command with the target TTI that the multi-transceiver technology is supported between mapping relations, determine target TTI combination.
3. The method according to claim 1, wherein there are mapping relations between the target TTI that the switching command is also supported with single-carrier technology, the method also includes:

   If the UE, using the single-carrier technology, there are mapping relations between the target TTI that the UE is supported according to the switching command and single-carrier technology, target TTI is determined.
4. According to claim 1 to method described in 3 any one, which is characterized in that the switching command with preset current TTI combine between there are mapping relations, it is described preset current TTI combination combined with the target TTI between there are mapping relations；The UE combined according to the switching command with the target TTI between mapping relations, determine target TTI combination, comprising:

   If the TTI combination that the UE is used be it is described preset current TTI combination, according to it is described preset current TTI combination combine with the target TTI between mapping relations, determine that the target TTI is combined.
5. A kind of Transmission Time Interval TTI switching method, which is characterized in that applied in the system for supporting multi-transceiver technology, the multi-transceiver technology supports at least two TTI combination, and the multicarrier includes main carrier and at least one secondary carrier；The described method includes:

   User equipment (UE) receives the secondary carrier activation instruction that base station is sent；Wherein, the secondary carrier activation instruction is used to indicate activation secondary carrier, and there are mapping relations between the secondary carrier activation instruction and the target TTI of the secondary carrier；

   The UE determines the target TTI of the secondary carrier according to the mapping relations between the secondary carrier activation instruction and the target TTI of the secondary carrier.
6. A kind of Transmission Time Interval TTI switching method, which is characterized in that applied in the system for supporting multi-transceiver technology, the multi-transceiver technology supports at least two TTI combination, which comprises

   User equipment (UE) receives the switching command of base station transmission in preset time window；Wherein, there are mapping relations between the target carrier in the switching command and the multicarrier；

   The UE sends hybrid automatic repeat-request HARQ message to the base station；Wherein, the HARQ message is used to indicate the base station: whether the UE is properly received the switching command received in the default reception window；

   The UE determines the target TTI according to the switching command received in the preset time window.
7. According to the method described in claim 6, it is characterized in that, the UE sends HARQ message to the base station, comprising:

   For the UE when the first preset time period since the first moment reaches, the base station Xiang Suoshu sends HARQ message；Wherein, first moment is where the last one switching command that the UE is received in the preset time window at the ending of subframe.
8. Method according to claim 6 or 7, which is characterized in that the method is also Include:

   When second preset time period of the UE since the first moment reaches, data are sent to the base station using the target TTI in the target carrier；Wherein, first moment is at the ending of the place subframe for the last one switching command that the UE is received in the preset time window.
9. A kind of user equipment (UE), which is characterized in that applied in the system for supporting multi-transceiver technology, the multi-transceiver technology supports at least two Transmission Time Interval TTI combination, and the UE includes:

   Receiver, for receiving the switching command of base station transmission；Wherein, the switching command be used to indicate TTI switching, and the switching command combined with the target TTI that the multi-transceiver technology is supported between there are mapping relations；The target TTI combination is one of at least two TTI combination TTI combination；

   Processor determines the target TTI combination for the mapping relations between combining according to the switching command with the target TTI.
10. UE according to claim 9, which is characterized in that there are mapping relations between the target TTI that the switching command is also supported with single-carrier technology；

    The processor is specifically used for: if the UE using the multi-transceiver technology, the UE combined according to the switching command with the target TTI that the multi-transceiver technology is supported between mapping relations, determine target TTI combination.
11. UE according to claim 9, which is characterized in that there are mapping relations between the target TTI that the switching command is also supported with single-carrier technology；

    The processor is also used to: if the UE, using the single-carrier technology, there are mapping relations between the target TTI supported according to the switching command and single-carrier technology, determining target TTI.
12. According to UE described in claim 9 to 11 any one, which is characterized in that the switching command with preset current TTI combine between there are mapping relations, it is described preset current TTI combination combined with the target TTI between there are mapping relations；

    The processor is specifically used for: if the TTI combination that the UE is used be it is described preset current TTI combination, according to it is described preset current TTI combination combine with the target TTI between mapping relations, determine that the target TTI is combined.
13. A kind of user equipment (UE), which is characterized in that applied in the system for supporting multi-transceiver technology, the multi-transceiver technology supports at least two Transmission Time Interval TTI combination, and the multicarrier includes main carrier and at least one secondary carrier；The UE includes:

    Receiver, for receiving the secondary carrier activation instruction of base station transmission；Wherein, the secondary carrier activation instruction is used to indicate activation secondary carrier, and there are mapping relations between the secondary carrier activation instruction and the target TTI of the secondary carrier；

    Processor, for determining the target TTI of the secondary carrier according to the mapping relations between the secondary carrier activation instruction and the target TTI of the secondary carrier.
14. A kind of user equipment (UE), which is characterized in that applied in the system for supporting multi-transceiver technology, the multi-transceiver technology supports at least two Transmission Time Interval TTI combination, and the UE includes:

    Receiver, the switching command sent for receiving base station in preset time window；Wherein, there are mapping relations between the target carrier in the switching command and the multicarrier；

    Transmitter, for sending hybrid automatic repeat-request HARQ message to the base station；Wherein, the HARQ message is used to indicate the base station: whether the UE is properly received the switching command received in the default reception window；

    Processor, for determining the target TTI according to the switching command received in the preset time window.
15. UE according to claim 14, which is characterized in that

    The transmitter is specifically used for: when the first preset time period since the first moment reaches, the base station Xiang Suoshu sends HARQ message；Wherein, first moment is where the last one switching command that the UE is received in the preset time window at the ending of subframe.
16. UE according to claim 14 or 15, which is characterized in that

    The transmitter is also used to: when the second preset time period since the first moment reaches, Data are sent to the base station using the target TTI in the target carrier；Wherein, first moment is at the ending of the place subframe for the last one switching command that the UE is received in the preset time window.