WO2014166214A1 - Procede de commutation d'intervalle de temps de transmission (tti), station de base et equipement utilisateur - Google Patents

Procede de commutation d'intervalle de temps de transmission (tti), station de base et equipement utilisateur Download PDF

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Publication number
WO2014166214A1
WO2014166214A1 PCT/CN2013/084194 CN2013084194W WO2014166214A1 WO 2014166214 A1 WO2014166214 A1 WO 2014166214A1 CN 2013084194 W CN2013084194 W CN 2013084194W WO 2014166214 A1 WO2014166214 A1 WO 2014166214A1
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WO
WIPO (PCT)
Prior art keywords
user equipment
base station
tti
tfci
handover
Prior art date
Application number
PCT/CN2013/084194
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English (en)
Chinese (zh)
Inventor
冯莉
郑潇潇
陈君
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201380010284.6A priority Critical patent/CN105264950B/zh
Publication of WO2014166214A1 publication Critical patent/WO2014166214A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a handover method, a base station, and a user equipment. Background technique
  • WCDMA Wideband Code Division Multiple
  • the DCH channel As one of the mainstream technologies of the third generation mobile communication system, Access, Wideband Code Division Multiple Access has been widely studied and applied worldwide.
  • the DCH channel called R99 DCH, is introduced in the Rel-99 version of the 3GPP (3rd Generation Partnership Project).
  • the R99 DCH channel has good coverage but can only increase the data rate.
  • the HSUPA High-Speed Uplink Packet Access
  • the transport channel introduced in HSUPA is E-DCH (Enhanced Dedicated Channel).
  • the E-DCH includes two Transmission Time Interval (TTI) types, 2ms TTI and 10ms TTI, of which 2ms TTI can provide high data transmission rate and small transmission delay; 10ms ⁇ can provide better coverage.
  • TTI Transmission Time Interval
  • the coverage of the R99 DCH is greater than the E-DCH lOmsTTI, so when the UE moves to the cell edge, even if the UE is currently using the E-DCH lOmsTTI, there is a possibility that the coverage still has a problem, and the UE needs to be switched from the E-DCH 1 OmsTTI to The TTI corresponding to the DCH.
  • E-DCH ⁇ switching involves two aspects: coverage measurement and E-DCH TTI The execution flow of the switch.
  • the first is the coverage measurement.
  • the UE sends the UPH to the base station through SI (Scheduling Information), where UPH (UE transmission power headroom, UE transmit power headroom), and UPH is the maximum UE transmit power and DPCCH (Dedicated Physical Control). Channel, dedicated physical control channel) power ratio.
  • SI Service Information
  • UPH UE transmission power headroom, UE transmit power headroom
  • UPH is the maximum UE transmit power
  • DPCCH dedicated Physical Control
  • Channel dedicated physical control channel
  • the execution flow of the E-DCH TTI handover has two methods: synchronous reconfiguration and asynchronous reconfiguration.
  • the synchronous reconfiguration refers to the base station controller (Radio Network Control, RNC) respectively.
  • RNC Radio Network Control
  • the UE and the base station are configured with a CFN (Connection Frame Number) of the TTI handover, and the UE switches to the target ⁇ type in the designated CFN, and the base station parses the E-DCH data sent by the UE according to the target ⁇ type in the specified CF.
  • CFN Connection Frame Number
  • the synchronous reconfiguration method includes:
  • the RNC determines to perform a TTI handover, and then the RNC sends an RRC (Radio Resource Control) signaling to the UE, such as a RADIO BEARER RECONFIGURATION REQUEST, indicating that the UE switches to the target type, where the radio bearer
  • RRC Radio Resource Control
  • the reconfiguration request contains an activation time, which can be expressed, for example, by CF.
  • the RNC sends a RADIO LINK RECONFIGURATION PREPARE message to the base station (eg, NodeB), which carries the new configuration, including the ⁇ type; then the base station sends a response message to the RNC (RADIO LINK RECONFIGURATION Ready, wireless chain
  • the route reconfiguration message is sent, and then the RNC sends a Radio Link Reconfiguration Confirm message to the base station, where the radio link reconfiguration confirmation message carries the activation time, for example, also indicated by CF, and the activation time is used.
  • the base station is instructed to parse the uplink data according to the target TTI at the specified activation time.
  • the UE sends a RADIO BEARER RECONFIGURATION RESPONSE message to the RNC.
  • the process of asynchronous reconfiguration is similar to the process of synchronous reconfiguration, except that the activation time is not specified in the message, and the UE switches to the target as soon as possible after receiving the reconfiguration request, and the base station is also the same.
  • the uplink data is parsed by the new TTI, and the specific process will not be described here.
  • Sending new configuration information to the base station requires at least three signaling interactions between the RNC and the base station to complete the handover. Therefore, such a handover mechanism may cause the TTI handover to be untimely and has a large delay, especially in the When the 2msTTI is switched to lOmsTTI, such delay may cause E-DCH data to be lost or even dropped.
  • the base station cannot accurately determine the timing of the UE switching to the target ,. After receiving the reconfiguration signaling sent by the RNC, the base station needs to try to parse the two TTI types before and after the handover, so the hardware resources of the base station are wasted. Summary of the invention
  • the embodiments of the present invention provide a handover method, a base station, and a user equipment, so as to avoid the problem of data loss or dropped calls caused by a large delay and no timely handover when the TTI is switched.
  • a first aspect of the present invention provides a TTI handover method, including: receiving, by a user equipment, first configuration information corresponding to a first TTI and second configuration information corresponding to a second UI; the user equipment receiving handover indication information sent by a base station The user equipment switches the current TTI to the target ⁇ corresponding to the handover indication information, where the current TTI is one of the first TTI and the second TTI, and the target ⁇ is the The first device and the other one of the second ports; the user equipment transmits data to the base station at the target TTI.
  • the first ⁇ is specifically 2 ms
  • the second TTI is specifically 10 ms.
  • the method further includes: the user equipment is carried in the E-DPCCH
  • the E-TFCI is prohibited from being used to indicate that the user equipment has received the handover indication information, where the prohibited E-TFCI is predefined or configurable or reserved; or, the user equipment Transmitting a separate physical control channel (DPCCH) carrying a non-zero transport channel format merge indication (TFCI) to indicate that the user equipment has received the handover indication information, where The non-zero TFCI is predefined or configurable.
  • DPCCH physical control channel
  • TFCI non-zero transport channel format merge indication
  • the method further includes:
  • the user equipment When the current ⁇ is 2 ms TTI, and the power headroom (UPH) value sent by the user equipment to the base station is less than a first threshold, the user equipment sends a first enhanced dedicated transport channel format merge indication (E) - TFCI) an enhanced dedicated physical control channel (E-DPCCH) to indicate that the user equipment has received the handover indication information, the first E-TFCI being predefined or configurable; or
  • the user equipment When the current ⁇ is 10 ms TTI, and the power headroom (UPH) value sent by the user equipment to the base station is greater than a second threshold, the user equipment sends a second enhanced dedicated transport channel format merge indication (E) - TFCI) an enhanced dedicated physical control channel (E-DPCCH) to indicate that the user equipment has received the handover indication information, the second E-TFCI being predefined or configurable.
  • E enhanced dedicated transport channel format merge indication
  • E-DPCCH enhanced dedicated physical control channel
  • the method further includes: the user equipment corresponding to the target The uplink scrambling code transmits control information or data to indicate that the handover indication information has been received.
  • the method further includes: using, by the user equipment, domain information in the DPCCH Instructing the user equipment that the handover indication information has been received.
  • the method further includes: the user equipment receiving the handover The acknowledgment information is sent to the base station within a maximum time after the indication information, wherein the maximum time is predefined or configurable.
  • the user equipment sends data to the base station by using the target TTI. Specifically, when the user equipment sends data to the base station by using the first network The user equipment sends data to the base station by using the first TTI after the next M subframes after the sending of the acknowledgement information, where M is predefined or configurable, and M is an integer greater than or equal to zero. ; or
  • N is predefined or configurable and N is an integer greater than or equal to zero.
  • the user equipment sends data to the target Before the base station, it also includes:
  • the user equipment clears data in the HARQ buffer
  • the user equipment resets the uplink enhanced entity (MAC-i/is) entity and sets TSN to zero.
  • MAC-i/is uplink enhanced entity
  • the method further includes: the user equipment constructs data in the HARQ buffer as a MAC-i PDU corresponding to the target ;; and the user equipment resets the MAC-i/is entity, and sets the TSN to 0.
  • the user equipment sends data to the target
  • the base station the method includes: deleting, by the user equipment, a first MAC-i PDU corresponding to a TTI that is not successfully sent before the handover; the user equipment constructs a second MAC-i PDU corresponding to the target TTI, where In the second MAC-i PDU and in the first MAC-i PDU, the payload is the same; the user equipment sends the second MAC-i PDU corresponding to the target ⁇ .
  • the user equipment when in the first TTI and in the When the same TBS table is used, the user equipment sends the data to the base station by using the target ⁇ , and the method includes: the first corresponding to the TTI before the handover of the user equipment that is not successfully sent by the physical layer.
  • the data is encoded as the second data corresponding to the target TTI; the user equipment sends the Second data.
  • the user equipment receives the first configuration information of the first UI Before the second configuration information of the second TTI, the method further includes: the user equipment sends capability indication information that supports the handover.
  • the user equipment receives the handover indication information sent by the base station, Specifically, the user equipment receives an HS-SCCH order sent by the base station.
  • the first configuration information includes the first Corresponding first E-DCH MAC-d flow parameter
  • the second configuration information includes a second E-DCH MAC-d flow parameter corresponding to the second TTI.
  • the first configuration information further includes a first DTX parameter and/or a first DRX parameter corresponding to the first UI
  • the present invention further provides a method for switching, comprising:
  • the base station receives the first configuration information corresponding to the first port and the second configuration information corresponding to the second port; the base station sends the handover indication information of the handover to the user equipment.
  • the first ⁇ is specifically 2 ms
  • the second TTI is specifically 10 ms.
  • the method further includes: the base station receiving the acknowledgement information sent by the user equipment.
  • the base station sends, to the user equipment, handover indication information that requires the user equipment to perform TTI handover, specifically: If the acknowledgment information is not received by the base station, the handover indication information is re-transmitted, where the maximum time is predefined or configurable.
  • the method further includes: receiving, by the base station An enhanced dedicated transport channel format merge indication (E-TFCI) for use by the user equipment in an enhanced dedicated physical control channel (E-DPCCH); and based on the E-TFCI, confirming that the user equipment has received The handover indication information, where the prohibited E-TFCI is predefined or configurable or reserved; or
  • DPCCH separate physical control channel
  • TFCI non-zero transport channel format merge indication
  • the method further includes: when the current If the power headroom (UPH) value received by the base station is less than the first threshold, the base station receives the first enhanced dedicated transport channel format merge indication (E-TFCI) sent by the user equipment. Ensuring a dedicated physical control channel (E-DPCCH), and confirming, based on the first E-TFCI, that the user equipment has received the handover indication information, the first E-TFCI being predefined or configurable Or,
  • E-TFCI enhanced dedicated transport channel format merge indication
  • the base station When the current ⁇ type is 10 ms TTI, and the power headroom (UPH) value received by the base station is greater than the second threshold, the base station receives the second enhanced dedicated transport channel format merge indication sent by the user equipment An enhanced dedicated physical control channel (E-DPCCH) of (E-TFCI), and confirming that the user equipment has received the handover indication information based on the second E-TFCI, the second E-TFCI is predefined Or configurable.
  • E-DPCCH enhanced dedicated physical control channel
  • the method further includes: sending, by the base station, an uplink enhancement to the radio network controller. Entity reset (MAC-i/is Reset) indication or MAC-is Reset indication.
  • the base station sends the user equipment to the user equipment After the handover indication information is switched, the method further includes: sending, by the base station, the switched target of the user equipment to the radio network controller.
  • the base station has an operation mode for turning off TTI switching And transmitting, by the base station, the handover indication information of the TTI handover to the user equipment, where the base station is in the working mode of the open handover, the base station sends the user equipment to the user equipment.
  • the switching indication information of the TTI handover is sent.
  • the base station when the base station is in the working mode of the closed handover, the base station receives the indication information sent by the radio network controller, and The working mode in which the base station is switched by the off TTI is switched to the working mode in which the TTI switching is turned on.
  • the base station receives the first TTI corresponding to Before the first configuration information and the second configuration information corresponding to the second UI, the method further includes: the base station sending, to the radio network controller, capability indication information that supports TTI handover.
  • the base station is used to the user equipment Simultaneously or after transmitting the handover indication information of the TTI handover, the method further includes: the base station transmitting the indication information to the radio network control, so that the radio network controller sends the indication information to the non-serving base station, so that The non-serving base station switches to the target TTI after the handover.
  • the indication information includes time information for switching to the target ⁇ .
  • the first configuration information and/or the second configuration information further includes a control channel for determining that the user equipment sends the handover indication acknowledgement information
  • the power of the handover indication confirmation information is used to indicate that the user equipment has received the handover indication information.
  • the present invention provides a user equipment, including:
  • a first receiving unit configured to receive first configuration information corresponding to the first TTI and second configuration information corresponding to the second TTI, where the second receiving unit is configured to receive the handover indication information sent by the base station, and the switching indication information
  • the switching unit is configured to receive the handover indication information from the second receiving unit, and switch the current TTI to a target ⁇ corresponding to the handover indication information, where the current ⁇ is One of the first ⁇ and the second ,, the target ⁇ is another one of the first ⁇ and the second ;
  • a first sending unit configured to send data to the target ⁇ The base station.
  • the first ⁇ is specifically 2 ms
  • the second TTI is specifically 10 ms.
  • the user equipment further includes: a second sending unit, configured to carry the prohibited use in the E-DPCCH E-TFCI to indicate that the user equipment has switched to the target TTI, wherein the forbidden E-TFCI is predefined or configurable or reserved; or for transmitting a separate carrying non-zero transmission A Physical Control Channel (DPCCH) of the Channel Format Consolidation Indication (TFCI) to indicate that the user equipment has received the handover indication information, wherein the non-zero TFCI is predefined, or configurable.
  • DPCCH Physical Control Channel
  • TFCI Channel Format Consolidation Indication
  • the user equipment further includes:
  • a second sending unit configured to: when the current ⁇ is 2 ms TTI, and the power headroom (UPH) value sent by the user equipment to the base station is less than a first threshold, the sending carries a first enhanced dedicated transport channel format merge indication (E-TFCI) Enhanced Dedicated Physical Control Channel (E-DPCCH) to The user equipment has received the handover indication information, and the first E-TFCI is predefined or configurable; or
  • the sending carries an enhancement of the second enhanced dedicated transport channel format merge indication (E-TFCI) a dedicated physical control channel (E-DPCCH) to indicate that the user equipment has received the handover indication information, and the second E-TFCI is predefined or configurable.
  • E-TFCI enhanced dedicated transport channel format merge indication
  • E-DPCCH dedicated physical control channel
  • the user equipment further includes: a second sending unit, configured to perform uplink interference corresponding to the target
  • the code transmits control information or data to indicate that the handover indication information has been received.
  • the user equipment further includes: a second sending unit, configured to use the domain information in the DPCCH to indicate the location The user equipment has received the handover indication information.
  • the user equipment further includes: a second sending unit, configured to: after receiving the switching indication information The acknowledgment information is sent to the base station in a maximum time, wherein the maximum time is predefined or configurable.
  • the first sending unit is specifically configured to: when sending data to the base station by using the first ⁇ , the first sending unit After the second sending unit sends the next M subframes after the acknowledgement information, the data is sent to the base station by using the first frame, where M is predefined or configurable, and M is an integer greater than or equal to zero. ; or
  • the first sending unit sends the data to the second ⁇ after the second sending unit sends the acknowledgment information
  • the base station where N is predefined or configurable, and N is an integer greater than or equal to zero.
  • the user equipment further includes: a processing unit, And before the first sending unit sends the data to the base station by using the target Clear the data in the HARQ buffer; reset the uplink enhancement (MAC-i/is) entity and set TSN to 0.
  • a processing unit And before the first sending unit sends the data to the base station by using the target Clear the data in the HARQ buffer; reset the uplink enhancement (MAC-i/is) entity and set TSN to 0.
  • the user equipment further includes: a processing unit, After the second receiving unit receives the handover indication information sent by the base station, the data in the HARQ buffer is constructed as a MAC-i PDU corresponding to the target TTI; and the MAC-i/is entity is reset. , set TSN to 0.
  • the first sending unit is specifically configured to: Deleting a first MAC-i PDU corresponding to the ⁇ before the successful handover; constructing a second MAC-i PDU corresponding to the target TTI, where in the second MAC-i PDU and in the first In the MAC-i PDU, the payload is the same; and the second MAC-i PDU corresponding to the target ⁇ is transmitted.
  • the user equipment when in the first When the same TBS table is used, the user equipment further includes: a coding unit, configured to encode, in the physical layer, the first data corresponding to the first TTI that is not successfully sent into the first And corresponding to the second data, and sending the second data to the first sending unit; the first sending unit is specifically configured to receive the second data from the encoding unit, and send the first Two data.
  • a coding unit configured to encode, in the physical layer, the first data corresponding to the first TTI that is not successfully sent into the first And corresponding to the second data, and sending the second data to the first sending unit
  • the first sending unit is specifically configured to receive the second data from the encoding unit, and send the first Two data.
  • the user equipment further includes:
  • the third sending unit is configured to send capability indication information that supports the handover.
  • the second receiving unit is specifically used Receiving the HS-SCCH order sent by the base station.
  • the first configuration information includes a first E-DCH MAC-d flow parameter corresponding to the first , the second configuration information packet The second E-DCH MAC-d flow parameter corresponding to the second TTI is included.
  • the first configuration information further includes a first DTX parameter and/or a first DRX parameter corresponding to the first TTI
  • the second configuration information further includes a second DTX parameter and/or a second DRX parameter corresponding to the second UI
  • the first configuration information and/or the second configuration information further includes The power of the control channel indicating the acknowledgment information, wherein the ⁇ handover indication acknowledgment information is used to indicate that the user equipment has received the handover indication information.
  • the present invention further provides a user equipment, including:
  • a receiver configured to receive first configuration information corresponding to the first TTI and second configuration information corresponding to the second TTI, and receive handover indication information sent by the base station, where the processor is configured to: according to the handover indication information, Switching to the target ⁇ corresponding to the handover indication information, where the current ⁇ is one of the first ⁇ and the second ,, and the target TTI is the first ⁇ and the second ⁇ Another one of the ;; a transmitter, configured to send data to the base station with the target ⁇ .
  • the first ⁇ is specifically 2 ms
  • the second TTI is specifically 10 ms.
  • the transmitter is specifically configured to carry an E-TFCI that is forbidden in the E-DPCCH to indicate the location
  • the user equipment has received the handover indication information, where the prohibited E-TFCI is predefined or configurable or reserved; or used to send a separate non-zero transport channel format merge indication (a physical control channel (DPCCH) of the TFCI) to indicate that the user equipment has received the handover indication information, wherein the non-zero TFCI is predefined, or configurable.
  • a separate non-zero transport channel format merge indication a physical control channel (DPCCH) of the TFCI
  • the transmitter is specifically configured to: when the current UI is 2 ms TTI, and the user equipment Sending a power headroom (UPH) value to the base station that is less than a first threshold, and transmitting an enhanced dedicated physical control channel (E-DPCCH) carrying a first enhanced dedicated transport channel format merge indication (E-TFCI) to indicate the The user equipment has received the handover indication information, where the first E-TFCI is predefined or configurable; or,
  • E-DPCCH enhanced dedicated physical control channel
  • E-TFCI enhanced dedicated transport channel format merge indication
  • the sending carries an enhancement of the second enhanced dedicated transport channel format merge indication (E-TFCI) a dedicated physical control channel (E-DPCCH) to indicate that the user equipment has received the handover indication information, and the second E-TFCI is predefined or configurable.
  • E-TFCI enhanced dedicated transport channel format merge indication
  • E-DPCCH dedicated physical control channel
  • the transmitter is specifically configured to send control information or data by using an uplink scrambling code corresponding to the target ,, To indicate that the switching indication information has been received.
  • the transmitter is specifically configured to use domain information in the DPCCH to indicate that the user equipment has received the The switching instruction information is described.
  • the transmitter is specifically configured to send the acknowledgement information within a maximum time after receiving the handover indication information To the base station, wherein the maximum time is predefined or configurable.
  • the transmitter is further configured to: When the first data is sent to the base station, the data is sent to the base station by using the first frame after the M subframes after the acknowledgement information is sent, where M is predefined or configurable. , M is an integer greater than or equal to zero; or
  • the second TTI is used to send data to the base station after the next N CFs are sent, where N is predefined or Configured, N is an integer greater than or equal to zero.
  • the processor is further configured to clear the HARQ buffer Data in the flush; and reset the uplink enhanced (MAC-i/is) entity, setting TSN to zero.
  • the processor is further configured to use the HARQ
  • the data in the cache is constructed as the MAC-i PDU corresponding to the target TTI; the MAC-i/is entity is reset, and the TSN is set to zero.
  • the processor is further configured to delete the unsent a first MAC-i PDU corresponding to the TTI before the successful handover; constructing a second MAC-i PDU corresponding to the target TTI, wherein in the second MAC-i PDU and in the first MAC-i In the PDU, the payload is the same; the transmitter is configured to send the second MAC-i PDU corresponding to the target ⁇ .
  • the user equipment further includes an encoder,
  • the first data corresponding to the ⁇ before the handover that is not successfully transmitted is encoded as the second data corresponding to the target ⁇ at the physical layer; the transmitter is configured to send the second data.
  • the transmitter is further configured to send Capability indication information that supports ⁇ switching.
  • the receiver is further configured to receive HS-SCCH order sent by the base station.
  • the first configuration information includes The first E-DCH MAC-d flow parameter corresponding to the first ⁇
  • the second configuration information includes a second E-DCH MAC-d flow parameter corresponding to the second TTI.
  • the first configuration information further includes a first DTX parameter corresponding to the first UI and/or a first
  • the second configuration information further includes a second DTX parameter and/or a second DRX parameter corresponding to the second TTI; the first configuration information and/or the second configuration information further includes Transmitting a power of a control channel including TTI handover indication acknowledgement information, where The confirmation information is used to indicate that the user equipment has received the handover indication information.
  • the present invention provides a base station, including:
  • the first receiving unit is configured to receive the first configuration information corresponding to the first TTI and the second configuration information corresponding to the second TTI, where the first sending unit is configured to send the handover indication information of the TTI handover to the user equipment.
  • the first ⁇ is specifically 2 ms
  • the second TTI is specifically 10 ms.
  • the base station further includes: a second receiving unit, configured to receive the acknowledgement information sent by the user equipment.
  • the first sending unit is further configured to: if the base station does not receive the acknowledgement information within a maximum time, re Sending the handover indication information, where the maximum time is predefined or configurable.
  • the base station further includes:
  • a second receiving unit configured to receive the user equipment in an enhanced dedicated physical control channel
  • E-TFCI enhanced dedicated transport channel format merge indication
  • DPCCH user equipment Control channel
  • a processing unit configured to confirm, according to the E-TFCI, that the user equipment has received the handover indication information, where the prohibited E-TFCI is predefined or configurable or reserved; or For confirming that the user equipment has received the handover indication information based on the non-zero TFCI, wherein the non-zero TFCI is predefined, or configurable.
  • the base station further includes:
  • a second receiving unit configured to: when the current UI is 2ms ⁇ , and received by the base station The power headroom (UPH) value is less than the first threshold, and receives an enhanced dedicated physical control channel (E-DPCCH) that is sent by the user equipment and carries a first enhanced dedicated transport channel format merge indication (E-TFCI) or The current ⁇ type is 10ms ⁇ , and the power headroom (UPH) value received by the base station is greater than a second threshold, and the second enhanced dedicated transport channel format merge indication (E-TFCI) sent by the user equipment is received.
  • E-DPCCH Enhanced dedicated physical control channel
  • a processing unit configured to confirm, according to the first E-TFCI, that the user equipment has received the handover indication information, where the first E-TFCI is predefined or configurable; or The second E-TFCI confirms that the user equipment has received the handover indication information, and the second E-TFCI is predefined or configurable.
  • the base station further includes: a second sending unit And sending an uplink enhanced entity reset (MAC-i/is Reset) indication or an uplink enhanced entity reset (MAC-is Reset) indication to the radio network controller.
  • MAC-i/is Reset uplink enhanced entity reset
  • MAC-is Reset uplink enhanced entity reset
  • the base station further includes: a third sending unit And transmitting, to the radio network controller, the switched target of the user equipment.
  • the base station has an operation mode for turning off TTI handover
  • the first sending unit is configured to send the switching indication information of the TTI handover to the user equipment in an working mode in which the base station is in the initiating TTI handover.
  • the base station further includes: a third receiving unit, configured to be in a working mode in which the base station is in the closed/switching mode Receiving the indication information sent by the radio network controller, and sending the indication information to the switching unit, where the switching unit is configured to switch the working mode of the base station by the shutdown switch based on the indication information.
  • the working mode for the said ⁇ switching is configured to switch the working mode of the base station by the shutdown switch based on the indication information.
  • the base station further includes: a fourth sending unit, configured to send, to the radio network controller, capability indication information that supports handover.
  • the base station further includes: a sending unit, configured to send indication information to the radio network controller, to enable the radio network controller to send the indication information to the non-serving base station, so that the non-serving base station switches to the target TTL after the handover
  • the indication information includes time information that is switched to the target ⁇ .
  • the present invention provides a base station, including:
  • the receiver is configured to receive the first configuration information corresponding to the first TTI and the second configuration information corresponding to the second TTI, and the transmitter is configured to send the handover indication information of the handover to the user equipment.
  • the first ⁇ is specifically 2 ms
  • the second TTI is specifically 10 ms.
  • the receiver is further configured to: receive the acknowledgement information sent by the user equipment.
  • the transmitter is further configured to: if the base station does not receive the acknowledgement information within a maximum time, re Sending the handover indication information, where the maximum time is predefined or configurable.
  • the base station further includes: a first processor,
  • the receiver is further configured to: receive an enhanced dedicated transport channel format merge indication (E-TFCI) for use by the user equipment in an enhanced dedicated physical control channel (E-DPCCH); or, for receiving a separate physical control channel (DPCCH) carrying a non-zero transport channel format merge indication (TFCI) sent by the user equipment;
  • E-TFCI enhanced dedicated transport channel format merge indication
  • DPCCH separate physical control channel carrying a non-zero transport channel format merge indication
  • the first processor is configured to confirm, according to the E-TFCI, that the user equipment has received the handover indication information, where the prohibited E-TFCI is predefined or configurable or reserved; Or for determining, according to the non-zero TFCI, that the user equipment has received the handover indication information, where the non-zero TFCI is predefined, or configurable.
  • the base station further includes: a first processor,
  • the receiver is further configured to: when the current TTI is a 2ms TTI, and the power headroom (UPH) value received by the base station is less than a first threshold, and receive the first enhanced dedicated Enhanced Dedicated Physical Control Channel for Transport Channel Format Consolidation Indication (E-TFCI)
  • E-TFCI enhanced dedicated Enhanced Dedicated Physical Control Channel for Transport Channel Format Consolidation Indication
  • E-DPCCH or, configured to: when the current ⁇ type is 10ms ⁇ , and the power headroom (UPH) value received by the base station is greater than a second threshold, and receive the second enhanced dedicated Enhanced Dedicated Physical Control Channel for Transport Channel Format Consolidation Indication (E-TFCI)
  • E-TFCI second enhanced dedicated Enhanced Dedicated Physical Control Channel for Transport Channel Format Consolidation Indication
  • the first processor is configured to: confirm, according to the first E-TFCI, that the user equipment has received the handover indication information, where the first E-TFCI is predefined or configurable; or, And confirming, by the second E-TFCI, that the user equipment has received the handover indication information, where the second E-TFCI is predefined or configurable.
  • the transmitter is further configured to:
  • the network controller sends an uplink enhanced entity reset (MAC-i/is Reset) indicating an uplink enhanced entity reset (MAC-is Reset) indication.
  • MAC-i/is Reset uplink enhanced entity reset
  • MAC-is Reset uplink enhanced entity reset
  • the transmitter is further configured to: The target of the switching of the user equipment is given to the radio network controller.
  • the base station has an operation mode for turning off TTI handover. And the working mode of the ⁇ handover is performed, where the transmitter is specifically configured to: when the base station is in the working mode of enabling the TTI handover, send the handover indication information of the TTI handover to the user equipment.
  • the receiver is configured to receive, when the base station is in the working mode of the off TTI handover, receive the sending by the radio network controller
  • the base station further includes a processor, configured to: switch the working mode of the base station from the closed switch to the working mode of the open switch.
  • the transmitter is used to send to a radio network controller Send capability indication information that supports handover.
  • the transmitter is used to control to a wireless network And transmitting the indication information, so that the radio network controller sends the indication information to the non-serving base station, so that the non-serving base station switches to the target TTI after the handover.
  • the indication information includes time information that is switched to the target ⁇ .
  • the present invention provides a method for switching, comprising:
  • the user equipment receives the transmission time interval ( ⁇ ) handover indication information sent by the radio network controller; the user equipment sends a control channel carrying the transport format combination to the base station, so that the base station can determine the user equipment based on the transport format combination
  • the handover indication information has been received.
  • the user equipment sends a control channel carrying a combination of transmission formats, specifically:
  • the user equipment carries an enhanced dedicated transport channel format merge indication (E-TFCI) in the enhanced dedicated physical control channel (E-DPCCH) to indicate that the user equipment has received the handover indication information, where
  • E-TFCI enhanced dedicated transport channel format merge indication
  • E-DPCCH enhanced dedicated physical control channel
  • the user equipment sends a separate physical control channel (DPCCH) carrying a non-zero transport channel format merge indication (TFCI) to indicate that the user equipment has received the handover indication information, where the non-zero TFCI is predefined , or configurable.
  • DPCCH physical control channel
  • TFCI non-zero transport channel format merge indication
  • the user equipment sends a carrying
  • the control channel combination of the transmission format is specifically:
  • the user equipment sends a first enhanced dedicated transport channel format merge indication ( An enhanced dedicated physical control channel (E-DPCCH) of the E-TFCI to indicate that the user equipment has received the handover indication information, the first E-TFCI being predefined or configurable; or
  • E-TFCI enhanced dedicated transport channel format merge indication
  • E-DPCCH enhanced dedicated physical control channel
  • the ⁇ handover indication information includes a first gain factor and a second a gain factor
  • the first gain factor is used to determine that the user equipment sends power of a control channel that does not include a handover indication acknowledgement
  • the second gain factor is used to determine that the user equipment sends a control that includes a handover indication acknowledgement The power of the channel; wherein the ⁇ handover indication acknowledgement information is used to indicate that the user equipment has received the handover indication information.
  • the method further includes: the user equipment switching to the predefined or pre-configured time point
  • the switching indication information corresponds to a target ⁇ .
  • the present invention provides a method for switching, comprising:
  • the base station receives a control channel that carries a combination of transmission formats sent by the user equipment, to determine that the user equipment has received the handover indication information.
  • the base station receives, by the user equipment, a control channel that carries a transport format combination, which is specifically:
  • E-DPCCH enhanced dedicated physical control channel
  • E-TFCI enhanced dedicated transport channel format merge indication
  • the non-zero TFCI is predefined or configurable.
  • the base station receives, by the user equipment, a control channel that carries a transport format combination, which is specifically:
  • the base station When the current ⁇ of the user equipment is 2 ms TTI, and the power headroom UPH value sent by the user equipment to the base station is less than a first threshold, the base station receives the first enhanced dedicated transport channel that is sent by the user equipment.
  • An enhanced dedicated physical control channel (E-DPCCH) of the format merge indication (E-TFCI) of the format merge indication (E-TFCI), and based on the first E-TFCI confirming that the user equipment has received the handover indication information, the first E-TFCI Pre-defined or configurable; or,
  • the base station When the current frame of the user equipment is 10 ms TTI, and the UPH value sent by the user equipment to the base station is greater than a second threshold, the base station receives a second enhanced dedicated transport channel format merge indication sent by the user equipment.
  • An enhanced dedicated physical control channel (E-DPCCH) of (E-TFCI) and based on the second E-TFCI confirming that the user equipment has received the handover indication information, the second E-TFCI is predefined Or configurable.
  • the receiving, by the base station, a control of a carrier transport format combination sent by a user equipment After the channel it also includes:
  • the base station starts to decode the uplink data sent by the user equipment by using the target ⁇ at a predefined or pre-configured time point, where the target ⁇ corresponds to the handover indication information.
  • the ⁇ handover indication information includes a first gain factor and a second gain factor, where the first gain factor is used to determine that the user equipment sends no ⁇ Switching the power of the control channel indicating the acknowledgment information, where the second gain factor is used to determine the power of the user equipment to transmit the control channel including the ⁇ handover indication acknowledgment information;
  • the ⁇ handover indication acknowledgement information is used to indicate that the user equipment has received the handover indication information.
  • the present invention provides a user equipment, including:
  • a receiving unit configured to receive a transmission time interval ( ⁇ ) switching indication information sent by the radio network controller
  • a sending unit configured to send a control channel carrying the transport format combination to the base station, so that the base station can determine, according to the transport format combination, that the user equipment has received the handover indication information.
  • the sending unit is specifically configured to: carry an enhanced dedicated transport channel format merge indication (E-TFCI) in the enhanced dedicated physical control channel (E-DPCCH) Instructing the user equipment that the handover indication information has been received, wherein the prohibited E-TFCI is predefined or configurable or reserved; or
  • DPCCH physical control channel
  • TFCI transport channel format merge indication
  • the sending unit is specifically configured to: when a current state of the user equipment is 2 ms TTI, and a power headroom UPH sent by the user equipment to the base station Sending an enhanced dedicated physical control channel (E-DPCCH) carrying a first enhanced dedicated transport channel format merge indication (E-TFCI) to indicate that the user equipment has received the handover indication information, if the value is smaller than the first threshold.
  • E-DPCCH enhanced dedicated physical control channel
  • E-TFCI first enhanced dedicated transport channel format merge indication
  • E-TFCI enhanced dedicated transport channel format merge indication
  • E-DPCCH physical control channel
  • the user equipment further includes: a processing unit, configured to control, by the user equipment, to switch to the handover indication information at a predefined or pre-configured time point The target TTI.
  • a processing unit configured to control, by the user equipment, to switch to the handover indication information at a predefined or pre-configured time point The target TTI.
  • a receiver configured to receive a transmission time interval ( ⁇ ) switching indication message sent by the radio network controller
  • a transmitter configured to send a control channel carrying a transport format combination to the base station, so that the base station can determine, according to the transport format combination, that the user equipment has received the handover indication information.
  • the transmitter is specifically configured to: carry an enhanced dedicated transport channel format merge indication (E-TFCI) in the enhanced dedicated physical control channel (E-DPCCH) Instructing the user equipment that the handover indication information has been received, wherein the prohibited E-TFCI is predefined or configurable or reserved; or
  • DPCCH physical control channel
  • TFCI transport channel format merge indication
  • the transmitter is specifically configured to: when a current state of the user equipment is 2 ms TTI, and a power headroom UPH sent by the user equipment to the base station Sending an enhanced dedicated physical control channel (E-DPCCH) carrying a first enhanced dedicated transport channel format merge indication (E-TFCI) to indicate that the user equipment has received the handover indication information, if the value is smaller than the first threshold.
  • E-DPCCH enhanced dedicated physical control channel
  • E-TFCI first enhanced dedicated transport channel format merge indication
  • E-TFCI enhanced dedicated transport channel format merge indication
  • E-DPCCH physical control channel
  • the user equipment further includes: a processing unit, configured to control, by the user equipment, to switch to the handover indication information at a predefined or pre-configured time point The target TTI.
  • the present invention provides a base station, including:
  • a first receiving unit configured to receive the handover indication information sent by the radio network controller
  • a second receiving unit configured to receive a control channel that is sent by the user equipment and that carries the transport format combination, to determine that the user equipment has received the handover indication information.
  • the base station further includes a processing unit
  • the second receiving unit is specifically configured to receive the user equipment in an enhanced dedicated physical control channel.
  • E-TFCI enhanced dedicated transport channel format merge indication
  • DPCCH user equipment
  • the processing unit is configured to confirm, according to the E-TFCI, that the user equipment has received the handover indication information, where the prohibited E-TFCI is predefined or configurable or reserved Or, based on the TFCI, confirm that the user equipment has received the handover indication information, where the non-zero TFCI is predefined, or configurable.
  • the base station further includes a processing unit
  • the second receiving unit is configured to: when the current state of the user equipment is 2 ms TTI, and the power headroom UPH value sent by the user equipment to the base station is less than a first threshold, and receive the carrying by the user equipment An enhanced dedicated physical control channel (E-DPCCH) of the first enhanced dedicated transport channel format merge indication (E-TFCI); or, when the current frame of the user equipment is a 10 ms TTI, and the user equipment sends to the base station
  • the UPH value is greater than the second threshold, and receives an enhanced dedicated physical control channel (E-DPCCH) that is sent by the user equipment and carries a second enhanced dedicated transport channel format merge indication (E-TFCI);
  • the processing unit is configured to confirm, according to the first E-TFCI, that the user equipment has received the handover indication information, where the first E-TFCI is predefined or configurable; or The second E-TFCI confirms that the user equipment has received the handover indication information, and the second E-TFCI is predefined or configurable.
  • the base station further includes: a decoding unit, configured to start, by using a target TTI, the user equipment to send at a predefined or pre-configured time point Uplink data, the target ⁇ corresponding to the handover indication information.
  • the present invention provides a base station, including:
  • a first receiver configured to receive the handover indication information sent by the radio network controller, where the second receiver is configured to receive a control channel that is sent by the user equipment and that carries the transport format combination, to determine that the user equipment has received the Switch the indication information.
  • the base station further includes a processor, where the second receiver is specifically configured to receive the user equipment in an enhanced dedicated physical control channel.
  • E-TFCI enhanced dedicated transport channel format merge indication
  • DPCCH user equipment
  • the processor is configured to confirm, according to the E-TFCI, that the user equipment has received the handover indication information, where the prohibited E-TFCI is predefined or configurable or reserved. Or, based on the TFCI, confirm that the user equipment has received the handover indication information, where the non-zero TFCI is predefined, or configurable.
  • the base station further includes a processor, where the second receiver is specifically configured to: when the current device of the user equipment is a 2 ms TTI, and the user equipment Receiving, by the user equipment, an enhanced dedicated physical control channel (E-DPCCH) that carries a first enhanced dedicated transport channel format merge indication (E-TFCI), where the power headroom UPH value sent to the base station is less than a first threshold; Or, when the current frame of the user equipment is a 10 ms TTI, and the UPH value sent by the user equipment to the base station is greater than a second threshold, receiving a second enhanced dedicated transport channel format merge indication sent by the user equipment ( Enhanced dedicated physical control channel (E-DPCCH) of E-TFCI);
  • E-DPCCH enhanced dedicated physical control channel
  • the processor configured to confirm, according to the first E-TFCI, that the user equipment has received the handover indication information, where the first E-TFCI is predefined or configurable; or The second E-TFCI confirms that the user equipment has received the handover indication information, and the second E-TFCI is predefined or configurable.
  • the base station further includes a decoder, And the uplink data sent by the user equipment is started to be decoded by the target ⁇ at a predefined or pre-configured time point, where the target ⁇ corresponds to the handover indication information.
  • the user equipment is pre-configured with a second TTI different from the first one and the first one, and the first configuration information corresponding to the first one and the second configuration information corresponding to the second TTI, as long as receiving
  • the current TTI of the user equipment can be directly switched, and the target ⁇ corresponding to the handover indication information is switched, and the data is sent to the base station by the target ,, so there is no need to be in the process of handover.
  • the RNC sends the new configuration information to the base station again, so that the signaling interaction between the RNC and the base station is not required. Therefore, the TTI handover process in this embodiment is timely and the delay is small, so the 2ms TTI is avoided.
  • the OmsTTI is switched, the E-DCH data is lost or dropped, and the peak rate can be increased because the lOmsTTI can be switched to the 2ms TTI in time.
  • the seventh to twelfth aspects of the present invention provide that after the user equipment receives the handover indication information of the UI, the user equipment sends a control channel carrying the transport format combination to the base station, so that the base station can determine the user based on the transport format combination.
  • the device has received the handover indication information, so the base station can know the timing of the user equipment switching the TTI, and then can know when to decode the uplink data sent by the user equipment by using the target TTI corresponding to the handover indication information, so the base station does not need to
  • the hardware resources of the base station are saved by attempting to parse the two types of ⁇ before and after the handover. Therefore, the method in the embodiment of the present invention can save hardware resources of the base station.
  • FIG. 2 is a flowchart of a method for handover of a UE on a UE side according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of transmitting data by a target ⁇ according to an embodiment of the present invention.
  • FIG. 4 is a flowchart of a method for handover of a base station on a base station according to an embodiment of the present invention
  • FIG. 5 is a flowchart of an interaction method of T ⁇ handover according to an embodiment of the present invention
  • FIG. 6 is a functional block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram showing an example of hardware implementation of a user equipment according to an embodiment of the present invention.
  • FIG. 8 is a functional block diagram of a base station according to an embodiment of the present invention.
  • FIG. 9 is a schematic conceptual diagram of a hardware implementation of a base station according to an embodiment of the present invention.
  • FIG. 10 is a flowchart of an interaction method of a handover according to another embodiment of the present invention.
  • FIG. 11 is a functional block diagram of a user equipment according to another embodiment of the present invention.
  • FIG. 12 is a schematic diagram showing an example of a hardware implementation of a user equipment according to another embodiment of the present invention
  • FIG. 13 is a functional block diagram of a base station according to another embodiment of the present invention.
  • FIG. 14 is a schematic conceptual diagram of a hardware implementation of a base station according to another embodiment of the present invention. detailed description
  • An embodiment of the present invention provides a handover method, a base station, and a user equipment.
  • the user equipment end and the base station end are pre-configured with a second UI different from the current first one. Therefore, the RNC does not need to be in the process of handover. Then, the new configuration information is sent to the base station, so that there is no need to perform multiple signaling interactions between the RNC and the base station. Therefore, in this embodiment, the handover can be triggered by the base station, so the handover process in this embodiment.
  • the delay is small, so E-DCH data loss or dropped calls are avoided when the 2ms TTI is switched to lOmsTTI, and the peak rate can be increased because the switching of lOmsTTI to 2ms TTI can be performed in time.
  • the user equipment may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides voice and/or data connectivity to the user, a handheld device with wireless connection function, or even Receive other processing devices from the wireless modem.
  • the wireless terminal can be accessed via a wireless access network (eg,
  • RAN Radio Access Network
  • core networks may be mobile terminals, such as mobile phones (or “cellular" phones) and computers with mobile terminals, for example, may be portable, pocket-sized , handheld, computer built-in or in-vehicle mobile devices that exchange language and/or data with a wireless access network.
  • PCS personal communication service
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • a wireless terminal may also be called a system, a Subscriber Unit, a Subscriber Station, a Mobile Station, a Mobile, a Remote Station, an Access Point, Remote Terminal, Access Terminal, User Terminal, User Agent, User Device, or User Equipment.
  • a base station can refer to a device in an access network that communicates with a wireless terminal over one or more sectors over an air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station (BTS, Base Transceiver Station) in CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B) This application is not limited.
  • the base station controller may be a base station controller (BSC) in CDMA or a radio network controller (RNC) in WCDMA, which is not limited in this application.
  • BSC base station controller
  • RNC radio network controller
  • Embodiment 1 Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
  • an embodiment of the present invention provides a method for switching, and the method includes the following steps:
  • Step 101 The user equipment receives the first configuration information corresponding to the first UI and the second configuration information corresponding to the second UI.
  • the first TTI is specifically 2 ms TTI
  • the second TTI is specifically 10 ms TTI, that is, the first TTI and the second ⁇ are both E under E-DCH.
  • the first ⁇ and the second ⁇ may also belong to ⁇ in different protocol versions, for example, the first l is lOmsTTI in E-DCH, and the second 20 is 20ms TTI in R99 DCH.
  • the step 101 is specifically: the user equipment receives the first configuration information corresponding to the first TTI and the second configuration information corresponding to the second TTI that are sent by the RNC.
  • the RNC may send the resource configuration information corresponding to the first ⁇ and the second ⁇ to the UE by using dedicated RRC signaling.
  • the first configuration information and the second configuration information may also be predefined, that is, the method of RNC configuration is preferred, and the RNC configuration is taken as an example.
  • the process of the RNC sending the first configuration information and the second configuration information to the UE may be the same or not, and correspondingly, in step 101, the UE receives the configuration information and the corresponding information corresponding to the first TTI.
  • the second configuration information corresponding to the second TTI may or may not be simultaneous.
  • the first TTI is 2msTTI and the second TTI is lOmsTTI, for example, at the initial
  • the RNC pre-configures the lOmsTTI information (here, the UE's current frame is 2msTTI) to the UE.
  • the RNC determines the pre-configured lOmsTTI information based on the 6a event (here, the current UE of the UE is 2msTTI) to the UE, where the 6a event is that the total transmit power of the UE is greater than a preset threshold, then the UE reports the total The transmit power to the RNC, then the RNC can pre-configure the lOmsTTI information to the UE according to the 6a event decision.
  • the 6a event here, the current UE of the UE is 2msTTI
  • the RNC when the RNC is transmitting the first configuration information and the second configuration information at the same time, the ⁇ type currently used by the UE is also specified. In general, to prevent dropped calls, the RNC specifies that the UE currently using ⁇ is 10msTTI.
  • the first configuration information and the second configuration information sent by the RNC respectively include a set of enhanced dedicated channel media access control flow (E-DCH MAC-d flow) parameters corresponding to each TTI, for example, based on the E-DCH MAC.
  • E-DCH MAC-d flow enhanced dedicated channel media access control flow
  • -d flow Identity E-DCH MAC-d flow maximum number of retransmissions
  • ACK positive acknowledgement
  • NACK negative acknowledgment
  • E-DPCCH/DPCCH power offset the power offset of the data channel and the control channel
  • the second configuration information includes the second ⁇ corresponding second E-DCH MAC-d flow parameter; further, may further include other parameters, for example, configuring a set of DTX (Discontinuous Transmission) parameters and/or for the first TTI and the second TTI
  • the DRX discontinuous Reception parameter is not limited in this application.
  • the first configuration information and/or the second configuration information further includes, but is not limited to, a power for determining to transmit a control channel including the handover indication acknowledgement information.
  • the TTI handover indication acknowledgement information is used to indicate that the user equipment has received the handover indication information.
  • the UE before the step 101, also reports the capability indication information that supports the TTI handover to the RNC.
  • the UE may report the capability indication information in the RRC CONNECTION SETUP COMPLETE message. .
  • Step 102 The user equipment receives the handover indication information sent by the base station.
  • the base station notifies the UE to perform the handover by physical signaling, for example, notifying the UE to perform the TTI handover by using the HS-SCCH order.
  • the handover indication information may also be sent to the UE through another physical signaling or non-physical signaling. How the base station decides when to send the handover indication information, and what handover indication information is sent, and how to transmit the handover indication information by using the High Speed Shared Control Channel Command (HS-SCCH order), which will be described later on the base station side. In the case, a detailed description will be made.
  • HS-SCCH order High Speed Shared Control Channel Command
  • the handover indication may be used to indicate that the UE is in the R99 DCH and the E-DCH. Switching is performed between, but the present invention is described by taking an example of switching between E-DCH TTIs.
  • Step 103 The user equipment switches the current ⁇ to the target TTI corresponding to the handover indication information, where the target TTI is the first TTI or the second TTI. That is, if the user equipment's ⁇ is the first ⁇ before the handover, the target ⁇ is the second TTI, and if the user equipment's ⁇ is the second TTI before the handover, the target ⁇ is the first TTI.
  • Step 104 The user equipment sends data to the base station with the target ⁇ .
  • step 104 is specifically to send uplink data to the base station by lOmsTTI.
  • step 104 has various embodiments, which will be described in detail later.
  • the user equipment first receives the corresponding configuration information of different TTIs, and then after receiving the handover indication information sent by the base station, the user equipment can be directly switched and switched to The target ⁇ corresponding to the indication information is switched, and the data is sent to the base station by using the target TTI. Therefore, the RNC does not need to send new configuration information to the base station during the handover process, so that multiple times between the RNC and the base station are not required.
  • the TTI handover process in this embodiment is timely and the delay is small, so that the E-DCH data is lost or dropped when the 2ms TTI is switched to the lOmsTTI, and because the lOmsTTI is switched to the 2ms TTI in time, Can increase the peak rate.
  • the user equipment does not send the acknowledgement information to the base station, and the base station can ensure that the user equipment receives the retransmission handover indication information, specifically by setting the time period of retransmission or the number of retransmissions, for example, The instruction information is continuously retransmitted within Is, or continuously retransmitted 3 times.
  • the user equipment After receiving the handover indication information, the user equipment immediately performs step 103 and step 104.
  • the base station sends the handover indication information, the base station uses two sets of resources to parse the E-DCH sent by the user equipment by using 2ms TTI and 10msTTI respectively. Upstream data.
  • the handover method further includes the step 105: the user equipment sends the acknowledgement information to the base station to notify the base station that the user equipment has received or The handover indication information is not received.
  • step 105 the user equipment feeds back ACK (Acknowledgment Positive Acknowledgement) information or NACK (Negative Acknowledge Negative Acknowledgement) information to the base station. If the handover indication information is correctly received, the user equipment sends an ACK message to the base station. If the handover indication information is not correctly received, the user equipment sends a NACK message to the base station.
  • ACK Acknowledgment Positive Acknowledgement
  • NACK Negative Acknowledge Negative Acknowledgement
  • the user equipment carries an E-TFCH (E-DCH Transport Format Combination Indicator) in the E-DPCCH to indicate that the user equipment has received the handover indication information.
  • E-TFCH E-DCH Transport Format Combination Indicator
  • the prohibited E-TFCI is predefined or configurable or reserved. For example, it can be configured through RNC, for example, using the 2ms TTI E-DCH TBS (Transport Block Size) table.
  • the E-TFCI is reserved and cannot be used for normal data transmission. It is only used to indicate that the user correctly receives the handover indication information.
  • the user equipment sends data or control information by using a UL (Uplink) scrambling code corresponding to the target ⁇ to indicate that the handover indication information has been correctly received.
  • a UL Uplink
  • the RNC pre-configures the first configuration information and the second configuration information to the user equipment
  • two SUM codes SC1 and SC2 are configured for the two ⁇ respectively; and the 2ms TTI is switched to the lOmsTTI as an example, when the UE correctly receives
  • the uplink DPCCH is sent by SC2, and after detecting by the base station, the E-DCH is parsed using the target TTI.
  • the serving base station After the HS-SCCH order is sent, two sets of resources need to be used to separately parse the uplink DPCCH according to SC1 and SC2.
  • the user equipment uses the domain information in the DPCCH to indicate that the user equipment has correctly received the handover indication information.
  • the bit corresponding to the FBI can be used to indicate.
  • the user equipment sends a separate physical control channel (DPCCH) carrying a non-zero transport channel format merge indication (TFCI) to indicate that the user equipment has received the handover indication information, where the non-zero TFCI is a pre- Defined, or configurable.
  • DPCCH physical control channel
  • TFCI non-zero transport channel format merge indication
  • E-DCH 10ms in which the TFCI field in the DPCCH is 0; when the UE receives the handover indication information (E-DCH 10ms ⁇ switch to DCH 10ms ⁇ handover indication information), then send a separate DPCCH carrying non-zero TFCI to instruct the UE to receive handover indication information; if the corresponding base station detects that the TFCI in the DPCCH is non-zero, the UE is considered as The handover indication information is correctly received, and the non-zero TFCI is predefined or configurable.
  • the separate transmission referred to herein refers to the DPCCH channel being separately transmitted, and there is no accompanying dedicated physical data channel (DPDCH) channel transmission.
  • DPDCH dedicated physical data channel
  • the user equipment before the user equipment receives the handover indication information sent by the base station, the user equipment further sends a power headroom (UPH) to the base station, for example, when the user equipment is UPH. If the threshold is lower than the first threshold, the user equipment reports the UPH to the base station.
  • UPH power headroom
  • the step 105 is specifically: when the current location of the user equipment is an E-DCH 2ms TTI, and the UPH value sent by the user equipment is less than the first threshold, the user equipment sends a first enhanced dedicated transport channel format merge indication.
  • E-TFCI an enhanced dedicated physical control channel (E-DPCCH) to indicate that the user equipment has received the handover indication information, the first E-TFCI being predefined or configurable; or
  • E-DPCCH enhanced dedicated physical control channel
  • E-TFCI second enhanced dedicated transport channel format merge indication
  • the user equipment When the ⁇ type used by the user equipment is E-DCH 2ms TTI, and the UPH value sent by the user equipment is less than the first threshold, the user equipment sends the first indication after receiving the handover indication information that the E-DCH 2ms is switched to the 10ms TTI.
  • the first E-TFCI is predefined or configurable; it should be noted that when the UPH is less than the first threshold, the user is in power Limiting or covering the restricted state, it is impossible to transmit the E-DCH data at a higher rate, that is, it is generally considered that the E-TFCI value is smaller at this time; therefore, when the UE receives the E-DCH 2ms switch to the 10ms TTI switching indication After the information is sent, the E-DPCCH carrying the first E-TFCI (the first E-TFCI value is large) is sent, and the base station can be instructed to receive the handover indication information correctly.
  • the base station After transmitting the handover indication information that the E-DCH 2ms is switched to 10ms E, the base station detects the E-DPCCH channel carrying the E-TFCI of the larger value (ie, the first E-TFCI), Then, it is considered that the UE receives the handover indication information that the E-DCH 2ms is switched to 10 ms.
  • the first E-TFCI can be used for E-DCH data transmission, but when the UPH is less than the first threshold, the UE does not select the first E-TFCI for E-DCH data transmission, so the UE can use the first E. - TFCI to indicate the handover indication information sent by the base station.
  • the ⁇ type used by the user equipment is the E-DCH 10ms TTI, and the UPH value sent by the user equipment is greater than the second threshold
  • the user equipment after receiving the handover indication information, the user equipment sends the E-DPCCH carrying the second E-TFCI, to indicate that the handover indication information has been received, the second E-TFCI is predefined or configurable. It should be noted that when the UPH is greater than the second threshold, it indicates that the user is in the near-point or mid-point of the cell. At this time, it is impossible to transmit the E-DCH data at a smaller rate, that is, the E-TFCI value is generally considered to be larger at this time.
  • the E-DPCCH carrying the second E-TFCI (the second E-TFCI value is smaller than the first E-TFCI) is sent.
  • the base station detects the E-DPCCH channel carrying the E-TFCI with a smaller value, and considers that the UE receives the E-DCH 10ms and switches to the TTI of 2ms. Switch messages.
  • the user equipment sends the acknowledgement information to the base station within a maximum time after receiving the handover indication information, where the maximum time is predefined. Or configurable. For example, if the RNC configures a maximum time for the user equipment, the user equipment feeds back the confirmation information to the base station within the maximum time.
  • step 104 from the timing of step 104, if the target device is the first frame, for example, 2 ms TTI, when the user equipment sends data to the base station in the first TTI, the user The device sends data to the base station by using the first frame after the M subframes after the acknowledgment message is sent, where M is predefined or configurable, and M is an integer greater than or equal to zero; and if the target ⁇ is the second TTI, for example In the case of lOmsTTI, when the user equipment sends data to the base station by using the second TTI, the user equipment sends the data to the base station after the next N CFNs after the acknowledgement information is sent, where N is predefined or configurable, N Is an integer greater than or equal to zero.
  • M and N are configurable, for example, configured by the RNC to the user equipment, and are predefined as A fixed value in the protocol.
  • step 104 there are various embodiments of the step 104 in terms of the manner of processing to the user plane.
  • the user equipment first clears the data in the HARQ (Hybrid Automatic Repeat Request) buffer before the step 104; the user equipment resets the uplink enhancement (MAC-i) /is) entity.
  • the MAC-i/is entity is reset, for example, the variable TSN (Transmission Sequence Number) of the MAC layer is reset to 0.
  • TSN Transmission Sequence Number
  • the RLC (Radio Link Control) layer on the user equipment side does not receive the RLC ACK sent by the network side, and then it is reconstructed in the RLC buffer.
  • the uplink enhanced protocol data unit (MAC-i PDU), and the MAC-is/MAC-i PDU is retransmitted, that is, step 104 is performed.
  • the uplink enhanced entity reset (MAC-is Reset) indication or the uplink enhanced entity weight is required to be carried in the E-DCH FP (Frame Protocol) or signaling.
  • Set (MAC-i/is Reset) indication is required to be carried in the E-DCH FP (Frame Protocol) or signaling.
  • the user equipment deletes the first uplink enhanced protocol data unit (MAC-i PDU) corresponding to the pre-switched TTI that is not successfully transmitted; the user equipment constructs the second MAC-i PDU corresponding to the target ,, The payload is the same in the second MAC-i PDU and in the first MAC-i PDU; the user equipment sends the second MAC-i PDU corresponding to the target ⁇ .
  • MAC-i PDU first uplink enhanced protocol data unit
  • the ⁇ before handover is 2 ms TTI
  • the target TTI is 10 ms TTI
  • the MAC-i PDU corresponding to the 2 ms TTI that has not been successfully transmitted is deleted, and the MAC corresponding to the 10 ms TTI is constructed.
  • -i PDU but the payload remains the same as 2msTTI, but in order to match the 10ms TTI TBS table, padding bits need to be filled in.
  • the payload of the 2ms TTI is assumed to be 160 bits, but in order to match the TBS table of lOmsTTI, it is assumed that the payload of the TBS table of lOmsTTI is 166 bits, then the second MAC The -i PDU fills in the padding, which is 6bit, but the payload is still 160bit.
  • the TSN does not reset and remains consistent with the 2msTTI. Therefore, in this embodiment, it is not necessary to trigger retransmission of the RLC layer.
  • step 104 the user equipment is not successfully sent before the physical layer switches.
  • the first data corresponding to the TTI is encoded as the second data corresponding to the target ;; the user equipment sends the second data.
  • the MAC-i PDU of the 2ms TTI that has not been successfully transmitted is not deleted, but is encoded and encoded into the lOmsTTI at the physical layer.
  • the method requires that the first TTI and the second TTI use the same TBS table.
  • the TSN does not reset and remains consistent with the 2msTTI.
  • the method in this embodiment does not require triggering RLC layer retransmission.
  • step 104 after receiving the handover indication information, the user equipment does not clear the data in the HARQ buffer, constructs the MAC-i PDU according to the target TTI type, and sends the data to the base station according to the target TTI type, and sends the MAC address to the base station; -i/is entity, reset TSN to 0.
  • the MAC-is reset indication or the MAC-i/is reset indication needs to be carried in the E-DCH FP (Frame Protocol) or signaling.
  • the user equipment processes the information to the user plane: after receiving the handover indication information, the new MAC-i PDU is not constructed, and the existing HARQ buffer is not cleared. The data in the area; when the data transmission in the existing HARQ buffer is completed, the user equipment sends the confirmation information of the handover indication information; the user equipment switches to the lOmsTTI after the next CF after the confirmation information is sent; The next CF after the confirmation message is considered to switch to 10msTTI. That is, as described above, the user equipment side is predefined or configured with a maximum time during which the user equipment transmits the data in the HARQ buffer in the maximum time, and then sends an acknowledgement message to the base station.
  • the method for switching from the base station side is described. Referring to FIG. 4, the method includes:
  • Step 201 The base station receives the first configuration information corresponding to the first port and the second configuration information corresponding to the second port.
  • the step 201 is specifically: the base station receives the first configuration information corresponding to the first ⁇ sent by the RNC and the second configuration information corresponding to the second TTI.
  • RNC can be wireless
  • the link reconfiguration process sends the resource configuration information corresponding to the first ⁇ and the second ⁇ to the base station.
  • the step 201 is similar to the step 101.
  • the process of the RNC sending the first configuration information and the second configuration information to the base station may be the same or not. For details, refer to the description of step 101. .
  • the ⁇ type currently used by the UE is also specified.
  • the RNC specifies the current UE.
  • the ⁇ used is 10msTTI.
  • the first configuration information and the second configuration information sent by the RNC respectively include a set of E-DCH MAC-d flow parameters corresponding to each TTI, that is, a first E-DCH MAC-d flow parameter corresponding to the first TTI
  • the second configuration information includes a second E-DCH MAC-d flow parameter corresponding to the second ; further, other parameters may be included, for example, a set of DTX (Discontinuous Transmission) is configured for the first TTI and the second TTI, respectively.
  • DTX Discontinuous Transmission
  • DRX discontinuous Reception
  • the first configuration information and/or the second configuration information includes, but is not limited to, determining, by the user equipment, the power of the control channel that includes the handover indication acknowledgement information, where the handover indication confirmation information is used to indicate that the user equipment has received Switch the indication information.
  • the base station before the step 201, also reports the capability indication information for supporting the TTI handover to the RNC.
  • the base station may report the capability indication information in the Audit Response message.
  • Step 202 The base station sends the handover indication information of the handover to the user equipment, so that the user equipment can perform step 103.
  • the base station notifies the UE to perform a TTI handover through physical signaling, for example, notifying the UE to perform the handover by using the HS-SCCH order.
  • the handover indication information may also be sent to the UE through other physical signaling or non-physical signaling.
  • the HS-SCCH order can be triggered by the serving E-DCH cell of the user equipment in the E-DCH RLS set.
  • the method before the step 202, further includes: determining, by the base station, whether the user equipment needs to perform TTI handover, and obtaining a first determination result; when the first determination result indicates that the user equipment needs to perform handover, the base station generates a handover indication. information.
  • the base station determines whether the user equipment needs to perform TTI handover, which can be implemented in various ways.
  • the UPH is lower than the first threshold, and/or the uplink data rate (or the current E-TFCI selected by the user equipment) is lower than the second threshold. If the UPH is lower than the first threshold, and/or the uplink data rate (or the E-TFCI selected by the current TTI user equipment) is lower than the second threshold, it indicates that the user equipment needs to perform TTI handover, and triggers switching from 2msTTI to lOmsTTI. .
  • the base station counts whether the number of UPHs reported by the user equipments in the X Y are lower than the third threshold, where Y and ⁇ are both greater than or equal to 1
  • the integer is ⁇ less than or equal to ⁇ ; and/or the uplink data rate (or the current E-TFCI selected by the user equipment) is lower than the second threshold; if there are X ⁇ , the UPH reported by the user equipment is low.
  • the uplink data rate (or the E-TFCI selected by the current user equipment) is lower than the second threshold, it indicates that the user equipment needs to perform the handover, and triggers the handover of 2ms TTI to 10msTTI.
  • the first threshold and the third threshold may be the same or different.
  • the user equipment needs to perform the handover, and triggers the lOmsTTI to 2msTTI. Switch.
  • the base station counts whether the UPHs reported by the user equipments in the S ⁇ are higher than the sixth threshold, where S and P are both greater than or equal to 1.
  • the integer value, P is less than or equal to S, and/or the TEBS reported by the user equipment is higher than the fifth threshold. If the number of UPHs reported by the user equipment in the P-TTIs is higher than the sixth threshold, and/or the user equipment reports The TEBS is higher than the fifth threshold, then it indicates that the user equipment needs to perform the handover, and triggers the handover of lOmsTTI to 2msTTI.
  • the fourth threshold and the sixth threshold may be the same or different.
  • the first threshold and the fourth threshold may be the same or different
  • the third threshold and the sixth threshold may be the same or different.
  • the base station may also determine whether to perform the handover by using other parameters or algorithms, which is not limited in this application.
  • the base station decides to perform the handover, the handover indication information is generated, and then the steps are performed.
  • the method further comprises the step 203: the base station receiving the acknowledgement information sent by the user equipment.
  • the acknowledgment information received by the eNB in step 203 corresponds to the acknowledgment information sent by the user equipment, and the acknowledgment information is described in detail in the foregoing method in the first embodiment, and is not described here.
  • the handover indication information is resent, that is, the step 202 is repeatedly performed, where the maximum time is predefined or configurable, for example, the RNC configures the base station with a maximum time. Then, the base station feeds back the confirmation information to the base station within the maximum time.
  • the maximum time that the RNC is configured for the user equipment and the maximum time configured for the base station are the same.
  • the method further comprises the step 204: the base station sends a MAC-i/is Reset indication or a MAC-is Reset indication to the RNC, so that the RNC sets the TSN to 0.
  • the party The method further includes the step 205: the base station sends the switched target TTI of the user equipment to the RNC.
  • the RNC user device can be indicated by FP frame or signaling (such as RADIO LINK RESTORE INDICATION or RADIO LINK PARAMETER UPDATE INDICATION).
  • the method further comprises: parsing the uplink data sent by the user equipment by using the target ⁇ .
  • the RNC is allowed to turn off the handover mode triggered by the base station, and then the RNC controls the handover of the TTI, for example, in the user equipment.
  • the base station is notified to turn off the base station triggered TTI handover. Therefore, the base station has an operation mode for turning off the TTI handover and an operation mode for turning on the TTI handover, and in the working mode in which the base station is in the on/off handover, step 202 is performed.
  • the base station receives the indication information sent by the radio network controller, and switches the working mode of the base station from the TTI switch-off to the operation mode of the switch-on, or switches the work mode of the base station from the switch to the switch mode. .
  • the RNC has, but is not limited to, the following two types of indication information: The first type is indicated by reconfiguring the related configuration information with or without the pre-configured message; the second type is by re-allocating the message. A display switch indication is added. When the TTI switching mode of the base station is to be turned off, the configuration information of the provisioning port may not be deleted.
  • the RNC instructs the base station to turn off the TTI switch by RADIO LINK RECONFIGURATION REQUEST/Response.
  • the base station is in RADIO LINK RECONFIGURATION
  • the Response feeds back the target ⁇ type currently used by the user device.
  • the method further includes: transmitting, by the base station, indication information to the radio network control, so that the radio network controller sends the indication information to the non-serving base station, so that the non-serving base station Switch to the target TTI after switching.
  • the indication information includes time information switched to the target ⁇ .
  • Step 301 The UE and the base station report the capability indication for supporting the handover to the RNC.
  • Step 302 RNC side decision pre-matching ⁇
  • Step 303 The UE and the base station initially configure the 2ms TTI configuration parameter, and pre-configure the lOmsTTI configuration parameter.
  • Step 304 The base station determines to trigger the 2ms TTI to switch to lOmsTTI;
  • Step 305 The base station sends an HS-SCCH order trigger switch.
  • Step 306 The UE performs a handover
  • Step 307 The UE feeds back confirmation information to the base station.
  • Step 308 The base station sends a MAC-is reset indication to the RNC. Optionally, it may also be a sending or MAC-i/is Reset indication.
  • Step 309 The base station feeds back to the RNC the currently used TTI.
  • Step 310 The RNC decides to disable the TTI handover triggered by the base station.
  • Step 311 The RNC notifies the base station to turn off the handover
  • Step 312 The base station is turned off, and optionally, the current used TTI is also fed back to the RNC; Step 313: The RNC controls the handover.
  • steps 301 to 312 are described in detail in the second embodiment of the first embodiment, and therefore are not described here.
  • step 313 refer to the method flow in FIG.
  • the RNC may perform the handover and send the handover indication information to the base station.
  • the base station sends the handover indication information to the UE in the foregoing manner, and the subsequent steps are the same as the foregoing solution.
  • the scheme has the beneficial effects of reducing the signaling interaction between the base station and the RNC side.
  • the RNC notifies the base station to perform TTI handover through the RADIO LINK RECONFIGURATION PREPARE, the RADIO LINK RECONFIGURATION Ready, and the Radio Link Reconfiguration Confirm.
  • a signaling is required to inform the base station to perform a handover. Therefore, the technical problem that the switching delay is large in the prior art can also be solved.
  • the RNC can simultaneously notify the non-serving base station in the E-DCH RLS set to perform TTI handover.
  • the embodiment of the present invention further provides a user equipment.
  • the user equipment includes: a first receiving unit 401, configured to receive first configuration information corresponding to the first UI and corresponding to the second UI
  • the second receiving unit 402 is configured to receive the switching indication information sent by the base station, and send the switching indication information to the switching unit 403.
  • the switching unit 403 is configured to receive the switching indication information from the second receiving unit 402.
  • the current ⁇ is switched to the target TTI corresponding to the handover indication information, where the current TTI is one of the first TTI and the second TTI, and the target TTI is another one of the first TTI and the second TTI; the first sending unit 404 , used to send data to the base station with the target TTI.
  • the first TTI is specifically 2 ms TTI
  • the second TTI is specifically 10 ms TTI.
  • the user equipment further includes: a second sending unit, configured to send the acknowledgement information to the base station.
  • the second sending unit is specifically configured to feed back ACK information or NACK information to the base station.
  • the second sending unit is specifically configured to carry the E-TFCI that is prohibited from being used in the E-DPCCH to indicate that the user equipment has received the target TTI, where the prohibited E-TFCI is predefined or Configured or reserved; or
  • DPCCH Physical Control Channel
  • TFCI Non-Zero Transport Channel Format Consolidation Indication
  • the second sending unit is specifically configured to send the control information or data by using the uplink scrambling code corresponding to the target , to indicate that the handover indication information has been received.
  • the second sending unit is specifically configured to use the domain information in the DPCCH to indicate that the user equipment has received the handover indication information.
  • the second sending unit is configured to: when the current UI is 2 ms TTI, and the power headroom (UPH) value sent by the user equipment to the base station is less than the first threshold, and the sending carries the first enhanced dedicated transport channel format.
  • the enhanced dedicated physical control channel carrying the second enhanced dedicated transport channel format merge indication (E-TFCI) is transmitted (E -DPCCH) to indicate that the user equipment has received the handover indication information, and the second E-TFCI is predefined or configurable.
  • the second sending unit is specifically configured to send the acknowledgment information to the base station within a maximum time after receiving the handover indication information, where the maximum time is predefined or configurable.
  • the first sending unit 404 is specifically configured to: when transmitting data to the base station by using the first TTI, the first sending unit 404 sends the first frame after the next M subframes after the second sending unit sends the acknowledgement information.
  • Data to the base station where M is predefined or configurable, and M is an integer greater than or equal to zero;
  • the first sending unit 404 sends the data to the base station by using the second ⁇ after the second sending unit sends the acknowledgment information, where N is predefined or configurable. , N is an integer greater than or equal to zero.
  • the next M subframes can use 2msTTI to send data to the base station; if the target ⁇ is the second ⁇ , that is, lOmsTTI, then it is switched from 2msTTI to lOmsTTI, so the next N CFs after the confirmation message is sent, for example, the next CF
  • the data can then be sent to the base station using 1 OmsTTI.
  • the user equipment further includes: a processing unit, configured to: before the first sending unit 404 sends the data to the base station by using the target TTI, clear the data in the HARQ buffer; and reset the MAC-i/is entity.
  • the MAC-i/is entity is reset, for example, the variable TSN (Transmission Sequence Number) of the MAC layer is reset to 0.
  • TSN Transmission Sequence Number
  • the RLC Radio Link Control
  • the standard TTI transmits data to the base station.
  • the first sending unit 404 is specifically configured to: delete a first M AC-i PDU corresponding to a TTI that is not successfully transmitted before the handover; and construct a second M AC-i PDU corresponding to the target TTI, where In the second MAC-i PDU and in the first MAC-i PDU, the payload is the same; and the second MAC-i PDU corresponding to the target TTI is transmitted.
  • the user equipment when the same TBS table is used under the first frame and the second frame, the user equipment further includes: a coding unit, configured to correspond to the first TTI that is not successfully sent in the physical layer.
  • the first data is encoded as the second data corresponding to the second frame, and the second data is sent to the first sending unit 404.
  • the first sending unit 404 is specifically configured to receive the second data from the encoding unit and send the second data.
  • the user equipment further includes: a processing unit, configured to, after the second receiving unit 402 receives the handover indication information sent by the base station, construct the data in the HARQ buffer as the MAC-i PDU corresponding to the target ⁇ ; and reset the MAC-i/is entity, setting TSN to 0.
  • a processing unit configured to, after the second receiving unit 402 receives the handover indication information sent by the base station, construct the data in the HARQ buffer as the MAC-i PDU corresponding to the target ⁇ ; and reset the MAC-i/is entity, setting TSN to 0.
  • the user equipment further includes: a third sending unit, configured to send capability indication information that supports the handover.
  • a third sending unit configured to send capability indication information that supports the handover.
  • the third sending unit sends the capability indication information supporting the handover to the RNC.
  • the second receiving unit 402 is specifically configured to receive the HS-SCCH order sent by the base station, that is, the handover indication information is represented by an HS-SCCH order.
  • the first configuration information includes a first E-DCH MAC-d flow parameter corresponding to the first TTI
  • the second configuration information includes a second E-DCH MAC-d flow parameter corresponding to the second ⁇ .
  • the first configuration information further includes a first DTX parameter and/or a first DRX parameter corresponding to the first TTI
  • the second configuration information further includes a second DTX parameter and/or a second DRX parameter corresponding to the second TTI.
  • the first receiving unit 401 and the second receiving unit 402 may be the same one, or may be different receiving units; and the first sending unit 404 to the third sending unit may It is the same sending unit, and it can also be a sending unit that is different from each other.
  • FIG. 7 a conceptual diagram of an example implementation of hardware of a user equipment, where the user equipment includes:
  • the receiver 503 is configured to receive the first configuration information corresponding to the first UI and the second configuration information corresponding to the second UI, and receive the handover indication information sent by the base station, where the processor 501 is configured to: according to the handover indication information, Switching to a target TTI corresponding to the handover indication information, where the current TTI is one of the first ⁇ and the second ,, the target ⁇ is the other of the first ⁇ and the second ;; the transmitter 504 is configured to target ⁇ Send data to the base station.
  • bus 500 can include any number of interconnected buses and bridges, and bus 500 will include one or more processors and memory 502 represented by processor 501.
  • the various circuits of the memory are linked together.
  • the bus 500 can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • Bus interface 505 provides an interface between bus 500 and receiver 503, transmitter 504.
  • Receiver 503 and transmitter 504 may be the same component, i.e., a transceiver, providing means for communicating with various other devices on a transmission medium.
  • a user interface 506 can also be provided, such as a keypad, a display, a speaker, a microphone, a joystick.
  • the processor 501 is responsible for managing the bus 500 and the usual processing, and the memory 502 can be used to store data used by the processor 501 when performing operations.
  • the first TTI is specifically 2 ms TTI
  • the second TTI is specifically 10 ms TTI.
  • the transmitter 504 is further configured to send an acknowledgement message to the base station.
  • the transmitter 504 is specifically configured to feed back ACK information or NACK information to the base station.
  • the transmitter 504 is specifically configured to: in the E-DPCCH, carry the forbidden E-TFCI to indicate that the user equipment has received the handover indication information, where the prohibited E-TFCI is predefined or Configured or reserved; or used to transmit a separate Physical Control Channel (DPCCH) carrying a Non-Zero Transport Channel Format Consolidation Indication (TFCI) to indicate that the user equipment has received handover indication information, where the non-zero TFCI is predefined , or configurable.
  • DPCCH Physical Control Channel
  • TFCI Non-Zero Transport Channel Format Consolidation Indication
  • the transmitter 504 is specifically configured to: when the current TTI is 2 ms TTI, and the power headroom (UPH) value sent by the user equipment to the base station is less than the first threshold, the sending carries the first enhanced dedicated transport channel format merge An enhanced dedicated physical control channel (E-DPCCH) indicating (E-TFCI) to indicate that the user equipment has received the handover indication information, the first E-TFCI being predefined or configurable; or
  • the enhanced dedicated physical control channel carrying the second enhanced dedicated transport channel format merge indication (E-TFCI) is transmitted (E -DPCCH) to indicate that the user equipment has received the handover indication information, and the second E-TFCI is predefined or configurable.
  • the transmitter 504 is specifically configured to send control information or data with an uplink scrambling code corresponding to the target ⁇ to indicate that the handover indication information has been received.
  • the transmitter 504 is specifically configured to use the domain information in the DPCCH to indicate that the user equipment has received the handover indication information.
  • the transmitter 504 is specifically configured to send the acknowledgment information to the base station within a maximum time after receiving the handover indication information, wherein the maximum time is predefined or configurable.
  • the transmitter 504 is further configured to:
  • the data When the data is sent to the base station by using the first frame, the data is sent to the base station by using the first frame after the M subframes after the acknowledgement information is sent, where M is predefined or configurable, and M is greater than or equal to zero. Integer
  • the data When the data is sent to the base station by the second frame, the data is sent to the base station by using the second frame after the next CF is sent, where ⁇ is predefined or configurable, and ⁇ is an integer greater than or equal to zero.
  • the processor 501 is further configured to clear data in the HARQ buffer; and reset the MAC-i/is entity to set the TSN to zero.
  • the processor 501 is further configured to construct the data in the HARQ buffer as the target MAC-i PDU; reset the MAC-i/is entity, and set the TSN to 0.
  • the processor 501 is further configured to delete the first MAC-i PDU corresponding to the ⁇ before the successful handover, and construct the second MAC-i PDU corresponding to the target TTI, where the second MAC-i PDU is in the second MAC-i PDU. And in the first MAC-i PDU, the payload is the same; the transmitter 504 is configured to send the second MAC-i PDU corresponding to the target TTI.
  • the user equipment further includes an encoder, coupled to the processor 501, for encoding, in the physical layer, the first data corresponding to the target before the unsuccessful handover is the second data corresponding to the target ;; Send the second data.
  • an encoder coupled to the processor 501, for encoding, in the physical layer, the first data corresponding to the target before the unsuccessful handover is the second data corresponding to the target ;; Send the second data.
  • the transmitter 504 is further configured to send capability indication information that supports TTI handover.
  • the receiver 503 is further configured to receive the HS-SCCH order sent by the base station.
  • the first configuration information includes a first E-DCH MAC-d flow parameter corresponding to the first TTI
  • the second configuration information includes a second E-DCH MAC-d flow parameter corresponding to the second ⁇ .
  • the first configuration information further includes a first DTX parameter and/or a first DRX parameter corresponding to the first TTI
  • the second configuration information further includes a second DTX parameter and/or a second DRX parameter corresponding to the second TTI.
  • a base station is provided. As shown in FIG. 8, the base station includes:
  • the first receiving unit 601 is configured to receive the first configuration information corresponding to the first TTI and the second configuration information corresponding to the second TTI.
  • the first sending unit 602 is configured to send the handover indication information of the handover to the user equipment.
  • the first TTI is specifically 2 ms TTI
  • the second TTI is specifically 10 ms TTI.
  • the base station further includes: a second receiving unit, configured to receive the acknowledgement information sent by the user equipment.
  • the first sending unit 602 is further configured to: if the base station does not receive the acknowledgement information within the maximum time, retransmit the handover indication information, where the maximum time is predefined or configurable.
  • the base station further includes: a second receiving unit, configured to receive an enhanced dedicated transport channel format merge indication (E-TFCI) that is prohibited by the user equipment in the enhanced dedicated physical control channel (E-DPCCH); or a physical control channel (DPCCH) for receiving a non-zero transport channel format merge indication (TFCI) sent by the user equipment, and a processing unit, configured to confirm, according to the E-TFCI, that the user equipment has received the handover indication information, where The used E-TFCI is predefined or configurable or reserved; or, for confirming that the user equipment has received the handover indication information based on the non-zero TFCI, wherein the non-zero TFCI is predefined, or configurable .
  • E-TFCI enhanced dedicated transport channel format merge indication
  • E-DPCCH enhanced dedicated physical control channel
  • DPCCH physical control channel
  • TFCI non-zero transport channel format merge indication
  • the base station further includes: a second receiving unit, configured to: when the current frame is 2 ms TTI, and the power headroom (UPH) value received by the base station is less than the first threshold, and receive the first enhanced dedicated transmission sent by the user equipment An enhanced dedicated physical control channel (E-DPCCH) of the channel format combining indication (E-TFCI) or for when the current ⁇ type is 10 ms TTI, and the power headroom (UPH) value received by the base station is greater than a second threshold, receiving An enhanced dedicated physical control channel (E-DPCCH) carried by the user equipment carrying a second enhanced dedicated transport channel format merge indication (E-TFCI);
  • E-DPCCH enhanced dedicated physical control channel
  • E-TFCI second enhanced dedicated transport channel format merge indication
  • the base station further includes: a second sending unit, configured to send to the radio network controller
  • the base station further includes: a third sending unit, configured to send the switched target TTI of the user equipment to the radio network controller.
  • the base station has an operation mode of turning off the handover and an operation mode of the on/off handover
  • the first sending unit 602 is specifically configured to send the handover indication information of the TTI handover to the user equipment in the working mode in which the base station is in the on/off handover mode.
  • the base station further includes: a third receiving unit, configured to: receive the indication information sent by the radio network controller, and send the indication information to the switching unit, in the working mode in which the base station is in the closed/switching mode; The working mode in which the base station is switched from being turned off is switched to the operating mode in which the switching is started based on the indication information.
  • a third receiving unit configured to: receive the indication information sent by the radio network controller, and send the indication information to the switching unit, in the working mode in which the base station is in the closed/switching mode; The working mode in which the base station is switched from being turned off is switched to the operating mode in which the switching is started based on the indication information.
  • the base station further includes: a fourth sending unit, configured to send capability indication information supporting the handover to the radio network controller.
  • the base station further includes: a fifth sending unit, configured to send the indication information to the wireless network control, so that the radio network controller sends the indication information to the non-serving base station, so that the non-serving base station switches to the target TTI after the handover.
  • a fifth sending unit configured to send the indication information to the wireless network control, so that the radio network controller sends the indication information to the non-serving base station, so that the non-serving base station switches to the target TTI after the handover.
  • it can be applied to a soft switching area.
  • the indication information includes time information for switching to the target ⁇ .
  • the first receiving unit 601 to the third receiving unit may be the same one, or may be two different receiving units; and the first sending unit 602 to the fifth sending unit may be the same sending unit. It can also be a sending unit that is different from each other.
  • a base station is provided. Please refer to FIG. 9, which is a block diagram of a hardware implementation example of a base station.
  • the base station includes:
  • the receiver 701 is configured to receive the first configuration information corresponding to the first UI and the second configuration information corresponding to the second UI.
  • the transmitter 702 is configured to send the handover indication information of the handover to the user equipment.
  • transmit processor 705 can receive data from a data source and receive control information from processor 704. Transmit processor 705 provides various signal processing functions for the data, control information, and reference signals, for example, transmit processor 705 can encode. Transmit processor 705 provides the generated symbols to transmit frame processor 430 to create a frame structure resulting in a series of frames. These frames are then provided to a transmitter 702 which provides various signal conditioning functions including amplification, filtering, and modulating the frame onto a carrier for transmission over the wireless medium via antenna 703.
  • the receiver 701 receives the data through the antenna 703 and processes the data to restore the information modulated onto the carrier, and the information recovered by the receiver 701 is supplied to the receiving frame processor 709, which parses each frame, and the receiving processor 710 The frame is decoded and the successfully decoded control signal is provided to the processor 704. If some frames are not successfully decoded by the receive processor 710, the processor 704 can also support those frames using the ACK and/or NACK protocols. Retransmission request.
  • the processor 704 can provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
  • Memory 707 can be used to store data and software for the base station.
  • the first TTI is specifically 2 ms TTI
  • the second TTI is specifically 10 ms TTI.
  • the receiver 701 is further configured to: receive the acknowledgement information sent by the user equipment.
  • the transmitter 702 is further configured to: if the base station does not receive the acknowledgement information within the maximum time, retransmit the handover indication information, where the maximum time is predefined or configurable.
  • the base station further includes: a first processor, where the receiver 701 is further configured to: receive an enhanced dedicated transport channel format merge indication that is prohibited by the user equipment from being carried in the enhanced dedicated physical control channel (E-DPCCH) ( E-TFCI); or, for receiving a separate physical control channel (DPCCH) carrying a non-zero transport channel format merge indication (TFCI) sent by the user equipment; the first processor is configured to confirm that the user equipment has received based on the E-TFCI Handover indication information, wherein the prohibited E-TFCI is predefined or configurable or reserved; or, for confirming the user based on the non-zero TFCI The device has received the handover indication information, wherein the non-zero TFCI is predefined or configurable.
  • E-DPCCH enhanced dedicated physical control channel
  • DPCCH separate physical control channel
  • TFCI non-zero transport channel format merge indication
  • the base station further includes: a first processor, where the receiver 701 is further configured to: when the current TTI is 2 ms TTI, and the power headroom (UPH) value received by the base station is less than the first threshold, and the receiving user equipment sends An enhanced dedicated physical control channel (E-DPCCH) carrying the first enhanced dedicated transport channel format combining indication (E-TFCI) or for the current ⁇ type of 10 ms ⁇ , and the power headroom received by the base station (UPH) And the value is greater than the second threshold, and receives an enhanced dedicated physical control channel (E-DPCCH) that is sent by the user equipment and carries a second enhanced dedicated transport channel format merge indication (E-TFCI); the first processor is configured to: be based on the first E-TFCI Confirming that the user equipment has received the handover indication information, the first E-TFCI is predefined or configurable; or, for confirming that the user equipment has received the handover indication information based on the second E-TFCI, the second E-TFCI
  • the transmitter 702 is further configured to: send a MAC-i/is Reset indication or a MAC-is Reset indication to the radio network controller.
  • the transmitter 702 is further configured to: send the switched target of the user equipment to the wireless network controller.
  • the base station has an operation mode of turning off the handover and an operation mode of enabling the handover
  • the transmitter 702 is specifically configured to: send the handover indication information of the handover to the user equipment in the working mode in which the base station is in the on/off handover.
  • the receiver 701 is configured to receive the indication information sent by the radio network controller in the working mode in which the base station is in the off-hook mode; the base station further includes a processor 704, configured to: switch the working mode of the base station from the closed port to the on mode. ⁇ Switching mode of operation.
  • the transmitter 702 is configured to send the capability indication information supporting the handover to the radio network controller.
  • the transmitter 702 is configured to send indication information to the wireless network control, so that the radio network controller sends the indication information to the non-serving base station, so that the non-serving base station switches to the target TTL after the handover.
  • the indication information includes time information for switching to the target TTI.
  • the user device is pre-configured with a second TTI different from the first TTI, and the first configuration information corresponding to the first UI and the second configuration information corresponding to the second UI, as long as receiving
  • the current TTI of the user equipment can be directly switched, and the target TTI corresponding to the handover indication information is switched, and the data is sent to the base station by the target , so there is no need to be in the process of handover.
  • the RNC sends the new configuration information to the base station again, so that the signaling interaction between the RNC and the base station is not required. Therefore, the handover process in this embodiment is timely and the delay is small, so the 2ms TTI is avoided.
  • the OmsTTI is switched, the E-DCH data is lost or dropped, and the peak rate can be increased because the lOmsTTI can be switched to the 2ms TTI in time.
  • the TTI handover may be triggered by the base station controller (RNC) for asynchronous reconfiguration.
  • RNC base station controller
  • FIG. 10 it is a flowchart of a method for switching between an RNC, a base station, and a UE.
  • the method includes:
  • Step 801 The RNC sends TTI handover indication information to the UE and the base station.
  • Step 802 The UE receives the handover indication information sent by the RNC.
  • Step 803 The base station receives the handover indication information sent by the RNC.
  • Step 804 The UE sends a control channel carrying a transport format combination for the handover indication acknowledgement to the base station;
  • Step 805 The base station receives a control channel that is sent by the UE and carries a combination of transmission formats for the handover indication acknowledgement.
  • Step 806 The UE switches to the target TTI corresponding to the handover indication information at a predefined or pre-configured time point;
  • Step 807 The base station decodes the uplink data sent by the UE by using the target at a predefined or pre-configured time point.
  • Step 808 The UE sends a handover complete message to the RNC with the target ⁇ .
  • the user equipment side is taken as an example, the method for the handover includes: step 802, step 804, and further, step 806; further, step 808 may be further included.
  • the eighth embodiment that is, taking the base station side as an example, the handover method includes: Step 803, step 805, and further, step 807 is further included.
  • the RNC sends the handover indication information to the UE and the base station.
  • the handover indication information sent by the RNC to the UE may be a radio bearer setup message (RADIO BEARER SETUP) or a radio bearer reconfiguration message (RADIO BEARER) RECONFIGURATION or Transport CHANNEL RECONFIGURATION
  • the TTI handover indication message sent by the RNC to the base station may be a radio link reconfiguration message (RADIO LINK RECONFIGURATION REQUEST).
  • the handover indication message is used to indicate that the UE switches from the E-DCH 2ms TTI to the E-DCH 10ms TTI, or is used to indicate that the UE switches from the E-DCH 10ms TTI to the E-DCH 2ms TTI, or is used to indicate the UE. Switch from the E-DCH 10ms TTI to the R99 DCH channel.
  • the TTI handover indication information includes a first gain factor and a second gain factor, where the first gain factor is used to determine a power of the control channel when the user equipment sends the handover indication confirmation information that is not included, for example, to determine the accompanying transmission.
  • the advantage that the at least two gain factors are included in the handover indication information is that, after the user equipment receives the handover indication information, the control channel carrying the transmission format combination of the handover indication acknowledgement information is transmitted with greater power, so that the base station is correct.
  • the control channel is decoded to determine when the user equipment switches to the target ⁇ .
  • step 802 is performed, that is, the radio network controller RNC is sent. Switch the indication information.
  • step 803 is performed, that is, the TTI handover indication information sent by the radio network controller RNC is received.
  • the steps 802 and 803 may be performed at the same time, or may be performed at different times, depending on the communication status of the communication network.
  • the UE performs step 804 to transmit a control channel carrying the transport format combination to the base station, so that the base station can determine that the user equipment has received the handover indication information based on the transport format combination.
  • step 804 has multiple implementation manners, which are specifically illustrated as follows:
  • step 804 is specifically for carrying an enhanced dedicated transport channel format that is prohibited from being used in the enhanced dedicated physical control channel (E-DPCCH).
  • the merge indication indicates that the user equipment has received the handover indication information, wherein the prohibited E-TFCI is predefined or configurable or reserved.
  • the RNC for example, using the E-TFCL in the 2ms TTI E-DCH TBS (Transport Block Size) table.
  • the E-TFCI is reserved and cannot be used for normal data.
  • the transmission is only used to instruct the user to correctly receive the handover indication information.
  • E-TFCI Transmission Block Size
  • the user equipment sends a separate Physical Control Channel (DPCCH) carrying a Non-Zero Transport Channel Format Consolidation Indication (TFCI) to indicate that the user equipment has received handover indication information, wherein the non-zero TFCI is predefined or configurable.
  • DPCCH Physical Control Channel
  • TFCI Non-Zero Transport Channel Format Consolidation Indication
  • the TFCI in the DPCCH is 0 because there is no R99 service; when the UE receives the handover indication information ( The E-DCH 10ms TTI is switched to the DCH 10ms TTI handover indication information), and the separate DPCCH carrying the non-zero TFCI is sent to instruct the UE to receive the handover indication information; the corresponding base station detects that the TFCI in the DPCCH is a non-zero value, Then, it is considered that the UE correctly receives the handover indication information, and the non-zero TFCI is predefined or configurable.
  • the separate transmission referred to herein means that the DPCCH channel is separately transmitted, and there is no accompanying dedicated physical data channel (DPDCH) channel transmission.
  • DPDCH dedicated physical data channel
  • the user equipment when the user equipment receives the handover indication information, and the handover indication information indicates that the UE switches the E-DCH 10ms TTI from the E-DCH 2ms, the user equipment only sends the E-DPCCH. Send E-DPDCH.
  • the E-TFCI included in the E-DPCCH is not used for normal data transmission, and the E-TFCI may be predefined or configurable; optionally, to ensure that the E-DPCCH is detected by the base station.
  • the user equipment may transmit the E-DPCCH with the maximum power allowed, or determine the transmit power of the E-DPCCH with the second gain factor described above. This method can also be applied to the switching of E-DCH to R99 DCH.
  • the user equipment when the user equipment receives the handover indication information, and the handover indication information indicates that the UE switches from the E-DCH 10ms to the R99 DCH, the user equipment only sends the DPCCH and does not send the DPDCH.
  • the TFCI carried in the DPCCH channel is a predefined value, for example, 0; after receiving the handover indication information, the user equipment sends a separate DPCCH, and the single DPCCH carries a non-zero value; If the DPCCH channel of the non-zero value TFCI is carried, it can be determined that the user equipment has received the handover indication information, and then the timing of the user equipment switching to the R99 DCH can be determined.
  • This method can also be applied to the switching of E-DCH 2msTTI and E-DCH 10ms TTI.
  • the user equipment sends the DPCCH at the maximum allowed power, or determines the power of the DPCCH by using the second gain factor.
  • step 804 is specifically: when the current state of the user equipment is 2 ms TTI, and the power headroom UPH value sent by the user equipment to the base station is less than the first threshold, the user equipment sends the first enhanced dedicated transport channel.
  • An enhanced dedicated physical control channel (E-DPCCH) of the format merge indication (E-TFCI) to indicate that the user equipment has received the handover indication information, the first E-TFCI being predefined or configurable; or
  • the user equipment When the current frame of the user equipment is 10 ms TTI, and the UPH value sent by the user equipment to the base station is greater than the second threshold, the user equipment sends an enhanced dedicated physical control channel carrying the second enhanced dedicated transport channel format merge indication (E-TFCI) ( E-DPCCH) to indicate that the user equipment has received the handover indication information, and the second E-TFCI is predefined or configurable.
  • E-TFCI enhanced dedicated transport channel format merge indication
  • the UE when the UPH is smaller than the first threshold, the user is in a power limited or coverage limited state, and it is impossible to transmit the E-DCH data at a higher rate, that is, the E-TFCI value is generally considered to be small at this time. Therefore, when the UE receives the handover indication information that the E-DCH 2ms is switched to the 10ms TTI, the UE transmits the E-DPCCH carrying the first E-TFCI (the first E-TFCI value is large), and the base station can be indicated. The UE correctly receives the handover indication information.
  • the UE after the base station sends the E-DCH 2ms switch to the 10ms TTI handover indication information, and detects the E-DPCCH channel carrying the larger E-TFCI (ie, the first E-TFCI), the UE considers that the UE receives the E. -DCH 2ms is switched to 10ms of TTI handover indication information.
  • the first E-TFCI can be used for E-DCH data transmission, but when the UPH is less than the first threshold, the UE does not select the first E-TFCI for E-DCH data transmission, so the UE can use the first E. - TFCI to indicate the handover indication information sent by the base station.
  • the UPH When the UPH is greater than the second threshold, it indicates that the user is in the near-point or mid-point of the cell. At this time, it is impossible to transmit the E-DCH data at a smaller rate, that is, the E-TFCI value is generally considered to be larger at this time; when the UE receives After the E-DCH 10ms is switched to the 2ms handover indication information, the transmission carries the second E-TFCI (the second E-TFCI value is smaller, smaller than the first E-TFCI; or the E-DCH transport block size table E- E-DPCCH of the minimum value in the DCH Transport Block Size Table).
  • the base station detects the E-DPCCH channel carrying the E-TFCI with a smaller value, and considers that the UE receives the E-DCH 10ms switch to 2ms. Switch messages.
  • Steps corresponding to the base station side are step 805, and receiving a control channel that carries the transport format combination sent by the UE, so as to determine that the user equipment has received the handover indication information, because the two parties have agreed to receive the handover indication information.
  • the radio frame is switched to the target ⁇ , for example, at a predefined or pre-configured time point, so the base station can determine the timing of the user equipment using the target ,, and then can know when to decode with the target TTI corresponding to the handover indication information.
  • the uplink data sent by the user equipment so the base station does not need to perform the analysis of the two types of TTIs before and after the handover, and the hardware resources of the base station are wasted after the re-allocation signaling of the RNC is received in the prior art. Therefore, the embodiment of the present invention wastes the hardware resources of the base station.
  • the method in the middle can save the hardware resources of the base station.
  • step 806 that is, switching to the target ⁇ corresponding to the handover indication information at a predefined or pre-configured time point, taking the E-DCH 2ms to E-DCH 10 ms TTI handover as an example, the user equipment sends the included ⁇ After switching the E-DPCCH or DPCCH indicating the acknowledgment information, switch to the 10ms TTI in the next or several radio frames.
  • the user equipment sends the included After the TTI switches the E-DPCCH or DPCCH indicating the confirmation information, the next subframe is switched to
  • E-DCH 2ms TTI; N is predefined, or configurable.
  • the UE then proceeds to step 808 where the user equipment transmits a handover complete message with the target.
  • the handover complete message is a radio bearer setup complete message (RADIO BEARER)
  • step 807 is performed, that is, the uplink data sent by the UE is decoded by the target TTI at a predefined or pre-configured time point, and the target ⁇ corresponds to the handover indication information.
  • the base station when the base station detects the E-DPCCH, and the E-TFCI carried in the E-DPCCH is not used for normal data transmission, it is considered that the UE has received the TTI handover indication information; then the base station is in the next M radio frames or The next N subframes decode the uplink data sent by the UE according to the target ;; or
  • the base station After the base station detects that the DPCCH carrying the non-zero value, the UE considers that the UE has received the handover indication information; the base station decodes the uplink data sent by the UE according to the target in the next M radio frames or the next N subframes.
  • the embodiment of the present invention further provides a user equipment.
  • the user equipment includes: a receiving unit 901, configured to receive transmission time interval ( ⁇ ) handover indication information sent by a radio network controller;
  • the sending unit 902 is configured to send a control channel carrying a transport format combination to the base station, so that the base station can determine, according to the transport format combination, that the user equipment has received the handover indication information.
  • the sending unit 902 is specifically configured to: carry an enhanced dedicated transport channel format merge indication (E-TFCI) in the enhanced dedicated physical control channel (E-DPCCH) to indicate that the user equipment has received the handover indication Information, wherein the prohibited E-TFCI is predefined or configurable or reserved; or A separate Physical Control Channel (DPCCH) carrying a Non-Zero Transport Channel Format Consolidation Indication (TFCI) is sent to indicate that the user equipment has received handover indication information, wherein the non-zero TFCI is predefined, or configurable.
  • E-TFCI enhanced dedicated transport channel format merge indication
  • E-DPCCH enhanced dedicated physical control channel
  • TFCI Non-Zero Transport Channel Format Consolidation Indication
  • the sending unit 902 is specifically configured to:
  • E-TFCI enhanced dedicated transport channel format merge indication
  • E-DPCCH first threshold
  • an enhanced dedicated physical control channel carrying the second enhanced dedicated transport channel format merge indication (E-TFCI) is transmitted (E- DPCCH) to indicate that the user equipment has received the handover indication information, and the second E-TFCI is predefined or configurable.
  • the user equipment further includes: a processing unit 903, configured to control the user equipment to switch to the target corresponding to the handover indication information at a predefined or pre-configured time point.
  • the user equipment includes: a receiver 1003, configured to receive a transmission time interval sent by a radio network controller.
  • the switching indication information is sent to the base station, so that the base station can determine that the user equipment has received the handover indication information based on the transport format combination.
  • bus 1000 can include any number of interconnected buses and bridges, and bus 1000 will include one or more processors 1001 and memory 1002 represented by processor 1001. The various circuits representing the memory are linked together. Total Line 1000 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is well known in the art, and therefore, will not be further described herein.
  • Bus interface 1005 provides an interface between bus 1000 and receiver 1003, transmitter 1004. Receiver 1003 and transmitter 1004 may be the same component, i.e., a transceiver, providing means for communicating with various other devices on a transmission medium.
  • a user interface 1006, such as a keypad, a display, a speaker, a microphone, a joystick, may also be provided depending on the nature of the user device.
  • the processor 1001 is responsible for managing the bus 1000 and the usual processing, and the memory 1002 can be used to store data used by the processor 1001 when performing operations.
  • the transmitter 1004 is specifically configured to: carry an enhanced dedicated transport channel format merge indication (E-TFCI) in the enhanced dedicated physical control channel (E-DPCCH) to indicate that the user equipment has received the handover indication Information, wherein the prohibited E-TFCI is predefined or configurable or reserved; or
  • DPCCH Physical Control Channel
  • TFCI Non-Zero Transport Channel Format Consolidation Indication
  • the transmitter 1004 is specifically configured to:
  • E-TFCI enhanced dedicated transport channel format merge indication
  • E-DPCCH first threshold
  • an enhanced dedicated physical control channel carrying the second enhanced dedicated transport channel format merge indication (E-TFCI) is transmitted (E- DPCCH) to indicate that the user equipment has received the handover indication information, and the second E-TFCI is predefined or configurable.
  • the processor 1001 is configured to control the user equipment to switch to the target TTI corresponding to the handover indication information at a predefined or pre-configured time point.
  • a base station includes: a first receiving unit 1101, configured to receive TTI handover indication information sent by a radio network controller; and a second receiving unit 1102, configured to: Receiving, by the user equipment, a control channel carrying a combination of transmission formats to determine that the user equipment has received the handover indication information.
  • the base station further includes a processing unit 1103,
  • the second receiving unit 1102 is specifically configured to receive an enhanced dedicated transport channel format merge indication (E-TFCI) that is prohibited by the user equipment to be carried in the enhanced dedicated physical control channel (E-DPCCH), or to receive a separate sent by the user equipment.
  • E-TFCI enhanced dedicated transport channel format merge indication
  • DPCCH physical control channel
  • TFCI non-zero transport channel format merge indication
  • the processing unit 1103 is configured to confirm, according to the E-TFCI, that the user equipment has received the handover indication information, where the prohibited E-TFCI is predefined or configurable or reserved; or, the user equipment is confirmed based on the TFCI
  • the handover indication information has been received, where the non-zero TFCI is predefined, or configurable.
  • the base station further includes a processing unit 1103,
  • the second receiving unit 1102 is specifically configured to: when the current location of the user equipment is 2 ms TTI, and the power headroom UPH value sent by the user equipment to the base station is less than the first threshold, and receive the first enhanced dedicated transport channel format merge indication sent by the user equipment.
  • E-TFC an enhanced dedicated physical control channel
  • E-DPCCH an enhanced dedicated physical control channel
  • the receiving user equipment sends the carrying number
  • the processing unit 1103 is configured to confirm, according to the first E-TFCI, that the user equipment has received the handover indication information, where the first E-TFCI is predefined or configurable; or, the second E-TFCI confirms that the user equipment has received the handover. Indicates that the second E-TFCI is predefined or configurable.
  • the base station further includes a decoding unit 1104, configured to start, at a predefined or pre-configured time point, the uplink data that is sent by the user equipment by the target ,, and the target ⁇ corresponds to the handover indication information.
  • a base station is provided.
  • the base station includes: a first receiver 1201, configured to receive TTI handover indication information sent by a radio network controller;
  • the second receiver 1202 is configured to receive a control channel that is sent by the user equipment and that carries the transport format combination, to determine that the user equipment has received the handover indication information.
  • encoder 1205 can receive data from a data source and receive control information from processor 1203. Encoder 1205 provides various signal processing functions, such as encoding, for the data, control information, and reference signals. Encoder 1205 provides the generated symbols to transmit frame processor 1206 to create a frame structure resulting in a series of frames. These frames are then provided to a transmitter 1207 which provides various signal conditioning functions including amplification, filtering, and modulating the frame onto a carrier for transmission over the wireless medium over the antenna 1208.
  • the processor 1209 parses each frame, the decoder 1204 decodes the frame, and provides the successfully decoded control signal to the processor 1203. If some frames are not successfully decoded by the decoder 1204, the processing is performed.
  • the keeper 1203 may also use ACK and/or NACK protocols to support retransmission requests for those frames.
  • the processor 1203 can provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions.
  • Memory 1210 can be used to store data and software for the base station.
  • the second receiver 1202 is specifically configured to receive an enhanced dedicated transport channel format merge indication that is prohibited by the user equipment in the enhanced dedicated physical control channel (E-DPCCH).
  • E-TFCI enhanced dedicated transport channel format merge indication
  • DPCCH separate physical control channel carrying a non-zero transport channel format merge indication (TFCI) sent by the user equipment
  • the processor 1203 configured to confirm that the user equipment has received based on the E-TFCI To the handover indication information, wherein the prohibited E-TFCI is predefined or configurable or reserved; or, based on the TFCI, confirming that the user equipment has received the handover indication information, where the non-zero TFCI is predefined , or configurable.
  • the second receiver 1202 is specifically configured to: when the current state of the user equipment is 2 ms TTI, and the power headroom UPH value sent by the user equipment to the base station is less than the first threshold, and the receiving user equipment sends the first carrier An enhanced dedicated physical control channel (E-DPCCH) that enhances the dedicated transport channel format merge indication (E-TFCI); or, when the current frame of the user equipment is 10 ms TTI, and the UPH value sent by the user equipment to the base station is greater than the second threshold, Receiving, by the user equipment, an enhanced dedicated physical control channel (E-DPCCH) carrying a second enhanced dedicated transport channel format merge indication (E-TFCI); the processor 1203, configured to confirm, according to the first E-TFCI, that the user equipment has received The handover indication information, the first E-TFCI is predefined or configurable; or the second E-TFCI confirms that the user equipment has received the handover indication information, and the second E-TFCI is predefined or configurable.
  • E-DPCCH enhanced dedicated physical control
  • the decoder 1204 is configured to start, at a predefined or pre-configured time point, the uplink data sent by the user equipment by using the target TTI, where the target TTI corresponds to the handover indication information.
  • the seventh to fourth embodiments of the present invention provide that after the user equipment receives the handover indication information of the UI, the user equipment sends a control channel carrying the transport format combination to the base station, so that the base station can determine that the user equipment has been determined based on the transport format combination.
  • the base station After receiving the handover indication information, the base station can know the timing of the handover of the user equipment, and then can know when to decode the uplink data sent by the user equipment by using the target TTI corresponding to the handover indication information, so the base station does not need to
  • the hardware resources of the base station are wasted according to the two types of ⁇ before and after the handover. Therefore, the method in the embodiment of the present invention can save the hardware of the base station. Resources.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé de commutation d'intervalle de temps de transmission (TTI), une station de base et un équipement utilisateur. Le procédé de commutation de TTI comprend les opérations suivantes : un équipement utilisateur reçoit des premières informations de configuration correspondant à un premier TTI et des secondes informations de configuration correspondant à un second TTI ; l'équipement utilisateur reçoit des informations d'instruction de commutation envoyées par une station de base ; l'équipement utilisateur commute un TTI courant vers un TTI cible correspondant aux informations d'instruction de commutation, le TTI courant étant l'un du premier TTI et du second TTI, et le TTI cible étant l'autre du premier TTI et du second TTI ; et l'équipement utilisateur envoie des données à la station de base au TTI cible. Par adoption de la solution technique susmentionnée, la commutation de TTI est réalisée à temps et le retard de la commutation de TTI est réduit, permettant ainsi d'éviter la perte de données ou l'abandon d'appel.
PCT/CN2013/084194 2013-04-12 2013-09-25 Procede de commutation d'intervalle de temps de transmission (tti), station de base et equipement utilisateur WO2014166214A1 (fr)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017079870A1 (fr) * 2015-11-09 2017-05-18 华为技术有限公司 Procédé de commutation d'intervalle de durée de transmission, système de communication, équipement utilisateur et nœud b évolué
US11234289B2 (en) * 2016-09-28 2022-01-25 Telefonaktiebolaget Lm Ericsson (Publ) Methods, network node and wireless device for discontinuous transmission
US11362766B2 (en) 2016-11-14 2022-06-14 Beijing Xiaomi Mobile Software Co., Ltd. Method and apparatus for obtaining HARQ feedback and method and apparatus for transmitting HARQ feedback

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107615832B (zh) * 2015-06-11 2020-04-21 华为技术有限公司 一种drx实现方法、配置方法及相关设备
EP3340714B1 (fr) 2015-09-15 2020-05-06 Huawei Technologies Co., Ltd. Procédé et appareil d'envoi ou de réception d'informations de commande
WO2017132997A1 (fr) 2016-02-05 2017-08-10 广东欧珀移动通信有限公司 Procédé de configuration de ressources de commutation, point d'accès au réseau, et station mobile
CN107371267B (zh) * 2016-05-13 2019-09-17 电信科学技术研究院 一种数据传输方法及终端
WO2018027600A1 (fr) * 2016-08-09 2018-02-15 华为技术有限公司 Procédé et dispositif de commutation d'intervalle de temps de transmission (tti)
WO2018027949A1 (fr) * 2016-08-12 2018-02-15 华为技术有限公司 Procédé de communication, dispositif de réseau et terminal
BR112019014665A2 (pt) * 2017-03-23 2020-05-26 Ericsson Telefon Ab L M método implementado em um dispositivo sem fio e dispositivo sem fio
CN113747585B (zh) * 2017-11-27 2024-08-13 华为技术有限公司 一种链路恢复方法、终端设备及网络设备

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101594650A (zh) * 2008-05-30 2009-12-02 华为技术有限公司 配置传输时间间隔绑定的方法、装置和系统
WO2010124438A1 (fr) * 2009-04-27 2010-11-04 华为技术有限公司 Procédé et dispositif de commutation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100735346B1 (ko) * 2004-05-04 2007-07-04 삼성전자주식회사 향상된 상향 링크 전용 채널에서 ｈａｒｑ 동작을 고려한ｔｔｉ 변경 방법 및 장치
US8811335B2 (en) * 2007-04-20 2014-08-19 Qualcomm Incorporated Method and apparatus for dynamic adjustment of uplink transmission time

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101594650A (zh) * 2008-05-30 2009-12-02 华为技术有限公司 配置传输时间间隔绑定的方法、装置和系统
WO2010124438A1 (fr) * 2009-04-27 2010-11-04 华为技术有限公司 Procédé et dispositif de commutation

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017079870A1 (fr) * 2015-11-09 2017-05-18 华为技术有限公司 Procédé de commutation d'intervalle de durée de transmission, système de communication, équipement utilisateur et nœud b évolué
CN108353324A (zh) * 2015-11-09 2018-07-31 华为技术有限公司 转换传输时间间隔的方法和通信系统、用户设备及基站
EP3361776A4 (fr) * 2015-11-09 2018-10-03 Huawei Technologies Co., Ltd. Procédé de commutation d'intervalle de durée de transmission, système de communication, équipement utilisateur et noeud b évolué
US11234289B2 (en) * 2016-09-28 2022-01-25 Telefonaktiebolaget Lm Ericsson (Publ) Methods, network node and wireless device for discontinuous transmission
US11362766B2 (en) 2016-11-14 2022-06-14 Beijing Xiaomi Mobile Software Co., Ltd. Method and apparatus for obtaining HARQ feedback and method and apparatus for transmitting HARQ feedback

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