WO2016029864A1 - 上行传输主载波切换及其控制方法、装置、基站及ue - Google Patents

上行传输主载波切换及其控制方法、装置、基站及ue Download PDF

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Publication number
WO2016029864A1
WO2016029864A1 PCT/CN2015/088281 CN2015088281W WO2016029864A1 WO 2016029864 A1 WO2016029864 A1 WO 2016029864A1 CN 2015088281 W CN2015088281 W CN 2015088281W WO 2016029864 A1 WO2016029864 A1 WO 2016029864A1
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Prior art keywords
uplink transmission
carrier
cell
primary carrier
primary
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PCT/CN2015/088281
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English (en)
French (fr)
Inventor
许芳丽
鲍炜
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电信科学技术研究院
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Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Priority to JP2017511891A priority Critical patent/JP2017526301A/ja
Priority to KR1020177008677A priority patent/KR101924913B1/ko
Priority to US15/507,713 priority patent/US10721734B2/en
Priority to EP15836247.5A priority patent/EP3188542B1/en
Publication of WO2016029864A1 publication Critical patent/WO2016029864A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/249—Reselection being triggered by specific parameters according to timing information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/06—Reselecting a communication resource in the serving access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/26—Reselection being triggered by specific parameters by agreed or negotiated communication parameters
    • H04W36/28—Reselection being triggered by specific parameters by agreed or negotiated communication parameters involving a plurality of connections, e.g. multi-call or multi-bearer connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to an uplink transmission primary carrier switching and control method, apparatus, base station, and user equipment.
  • LTE Long Term Evolution
  • the traditional macro cell coverage mode is difficult to meet the needs in terms of capacity as the number of users increases and bandwidth requirements increase.
  • simple macro coverage cannot meet the user's traffic demand, and the isomorphic coverage method will have a blind spot, which affects the user's use. Therefore, LTE introduces a heterogeneous network, which makes the form of the networking more flexible.
  • the concept of a small cell is also proposed.
  • the small cell usually has a small coverage and a low transmission power. Deploying closer to the user, such as indoors, can increase the user's data rate.
  • LTE-Advanced LTE-Advanced
  • CA Carrier Aggregation
  • the carrier aggregation technology refers to a mechanism in which a UE (User Equipment, also called a terminal) can simultaneously aggregate multiple cells, and multiple cells can simultaneously provide data transmission services for the UE.
  • a UE User Equipment
  • carriers corresponding to each cell may be continuous or discontinuous in the frequency domain, in order to cooperate with LTE.
  • the system is compatible, and the maximum bandwidth of each cell carrier is 20 MHz, and the bandwidth between each component carrier may be the same or different.
  • the cell in which the user equipment works is divided into a primary cell (PCell) and a number of secondary cells (SCells).
  • the primary cell undertakes most of the control and signaling operations, such as sending downlink data.
  • CSI Channel State Information
  • SRS Sounding Reference Signal
  • D-SR Dedicated Scheduling Request
  • CBRA Contention Based Random Access
  • PUCCH Physical Uplink Control CHannel
  • the secondary cell is mainly used as a resource to perform data transmission, and the uplink direction supports PUSCH (Physical). Uplink Shared Channel, physical uplink shared channel) and SRS transmission.
  • the set of serving cells configured for the UE cannot be greater than the carrier aggregation capability of the UE. That is, for a UE that does not support uplink carrier aggregation, the uplink can only work on the PCell, that is, the uplink transmission primary carrier can only be on the PCell.
  • an activation/deactivation mechanism is introduced for better power saving of the UE.
  • the activation/deactivation in the LTE-A system is performed for a single cell, and does not distinguish between uplink and downlink.
  • the explicit activation/deactivation mechanism means that the base station controls the activation state of the UE aggregation cell by transmitting an activation or deactivation medium access control unit (MAC CE).
  • MAC CE activation or deactivation medium access control unit
  • MAC CE medium access control unit
  • MAC CE length 8 bits, which are C 7 , C 6 , C 5 , C 4 , C 3 , C 2 , C 1 , R, respectively.
  • the bit corresponds to a cell, that is, the last bit corresponds to the PCell. Since the PCell is never deactivated, the R bit defaults to 0; the other bits correspond to one SCell, that is, C i corresponds to the SCell numbered i.
  • the implicit deactivation mechanism is a method of implicit deactivation by introducing a deactivation timer.
  • the deactivation timer is based on UE configuration, based on cell maintenance. If the timer is not configured on the base station, the length of the timer is infinite, that is, the value is infinity.
  • Deactivation timing is based on cell maintenance.
  • the deactivation timer is maintained in the following manner: when the UE receives activation signaling for a certain cell, it starts/restarts the deactivation timer corresponding to the cell; during the running of the timer, once the user equipment After receiving the scheduling signaling for the uplink or downlink transmission of the cell, the cell deactivation timer is restarted. Note that if it is cross-carrier scheduling, you need to start the scheduling and deactivation timer of the scheduled cell at the same time.
  • the scheduling signaling for the uplink or downlink data transmission is carried by the Physical Layer Control Channel (PDCCH); when the deactivation timer expires, the user equipment deactivates the cell.
  • PDCCH Physical Layer Control Channel
  • the distance between the UE and the macro cell transmission point is usually greater than the distance between the UE and the small cell network transmission point.
  • the UE performs carrier aggregation transmission
  • the macro cell is configured as the UE's PCell
  • the user uplink transmission carrier can only be performed through the PCell.
  • the transmission is large, and the transmission power is large and causes a large interference to other users in the cell.
  • the small cell is configured as the PCell of the UE, the coverage of the small cell is small, and the UE needs to perform frequent cell handover when moving, and the service is transmitted during the handover.
  • the uplink transmission carrier and the downlink transmission carrier of the UE are simultaneously switched between cells, and the uplink transmission carrier of the UE cannot be switched between the cells, so that the transmission advantages of different cells cannot be balanced.
  • the embodiment of the invention provides an uplink transmission primary carrier switching and a control method and device thereof, a base station and a UE, so that the uplink transmission primary carrier of the UE performs handover between multiple different cells serving the UE, and the UE uplink is enhanced.
  • the transmission flexibility of the transmission primary carrier takes into account both the transmission power and the transmission requirements of the UE service.
  • An uplink transmission primary carrier switching control method provided by the embodiment of the present invention includes: determining, according to a UE, a transmission resource configured for a UE to provide a service for a cell, where a configuration resource of an uplink transmission carrier of multiple cells is included, The uplink transmission primary carrier used to implement the UE is switched between uplink transmission carriers corresponding to different cells; and the transmission resources of the cell set are notified to the UE.
  • the uplink transmission primary carrier of the UE may be configured for the UE.
  • the switching between multiple different cells in the cell set for serving the UE enhances the transmission flexibility of the uplink transmission main carrier of the user equipment, and takes into consideration the transmission power and the transmission requirement of the UE service, and the macro in the prior art
  • the cell is set as the primary cell, and the uplink transmission carrier of the macro cell is used for transmission, which avoids the problem that the transmission power is large and the interference to other users is large.
  • the small cell is set as the primary cell, and the small cell is used as the uplink.
  • the uplink transmission carrier and the downlink transmission carrier of the UE are used.
  • the uplink transmission carrier only for the UE is switched between cells. Taking into account the transmission advantages of different cells.
  • the configuration resources of the uplink transmission carrier of each cell include the following resources: CBRA, D-SR, and PUCCH.
  • the method further includes: notifying the UE to switch an uplink transmission primary carrier.
  • the base station notifies the UE to switch the uplink transmission primary carrier, and when there are more than two cells serving the UE, the determined selection may be directly determined in multiple cells.
  • the cell improves the accuracy of the handover cell.
  • the notifying the UE to switch an uplink transmission primary carrier includes: notifying, by using a layer 3, layer 2, or layer 1 command, the UE to select a specific The uplink transmission carrier of the cell is used as the uplink transmission primary carrier; or, by using the layer 3, layer 2, or layer 1 command, the UE is notified to transmit the subframe configuration information of the primary carrier, including the cell and the sub-carrier corresponding to the uplink transmission primary carrier.
  • the UE is instructed to use the uplink transmission carrier of the primary cell as the uplink transmission primary carrier.
  • the layer 3 command when used to notify the UE to select an uplink transmission carrier of a specific cell as the uplink transmission primary carrier, the layer 3 command further includes a configuration resource of the uplink transmission carrier of the specific cell.
  • the number of cells that provide the uplink transmission carrier configuration resource for the UE is greater than or equal to that when the UE actually performs uplink transmission.
  • the method before determining, as the transmission resource of the cell set configured by the UE for serving the UE, the method further includes: receiving the The capability information of the UE that supports the uplink transmission of the primary carrier handover capability is reported by the UE, and the transmission resource that is configured to be used by the UE to serve the UE is specifically configured to be based on the capability reported by the UE.
  • the uplink transmission primary carrier switching method provided by the embodiment of the present invention includes: the user equipment UE acquires a transmission resource of a cell set for serving the UE, which is notified by the network side, and includes configuration of an uplink transmission carrier of multiple cells.
  • the UE determines that the uplink transmission primary carrier handover is required, the UE switches the uplink transmission primary carrier to the uplink transmission carrier corresponding to the new cell by using the configuration resource of the uplink transmission carrier of the new cell.
  • the uplink transmission primary carrier of the UE is configured to be configured for the UE by determining the uplink transmission resource configured for the UE to serve the UE.
  • the switching between multiple different cells in the cell set for serving the UE enhances the transmission flexibility of the user equipment uplink transmission primary carrier, taking into account the transmission power and the transmission requirement of the UE service, and the prior art will
  • the macro cell is set as the primary cell, and the uplink transmission carrier of the macro cell is used for transmission, which avoids the problem of large transmission power and large interference to other users.
  • the small cell is set as the primary cell, and the small cell is used.
  • the uplink transmission carrier and the downlink transmission to the UE are performed.
  • the uplink transmission carrier only for the UE is implemented between the cells. In other words, taking into account the transmission advantages of different cells.
  • the UE determines, according to the notification of the handover uplink transmission primary carrier that is sent by the network side, that the uplink transmission primary carrier handover needs to be performed.
  • the network side notifies the UE to switch the uplink transmission primary carrier, and when there are more than two cells serving the UE, the determined selection may be directly determined in multiple cells.
  • the cell improves the accuracy of the handover cell.
  • the UE receives the notification of switching the uplink transmission primary carrier sent by the network side by using one of the following manners: through layer 3, layer 2, or layer 1 And receiving, by the network side, a notification that the uplink transmission carrier of the specific cell is selected as the uplink transmission primary carrier; or, by using the layer 3, layer 2, or layer 1 command, receiving the subframe configuration information of the uplink transmission primary carrier sent by the network side a notification, which includes a correspondence between a cell and a subframe corresponding to the uplink transmission primary carrier; or a command sent by the network side to deactivate the configuration resource of the uplink transmission carrier of the secondary cell that is currently the uplink transmission primary carrier of the UE As the UE, the uplink transmission carrier of the primary cell is used as the notification of the uplink transmission primary carrier.
  • the method further includes: the UE acquiring configuration resources of an uplink transmission carrier of the specific cell from the layer 3 command; and the UE switching the uplink transmission primary carrier to the configuration resource by using a configuration resource of an uplink transmission carrier of the new cell
  • the uplink transmission carrier corresponding to the new cell is specifically: the UE switches the uplink transmission primary carrier to the uplink transmission corresponding to the specific cell by using the configuration resource of the uplink transmission carrier of the specific cell obtained from the layer 3 command. Carrier.
  • the UE determines, by using one of the following manners, that an uplink transmission primary carrier handover is required: the UE determines by using autonomously initiated random access procedure.
  • the transmission carrier where the preamble sequence is located needs to be the uplink transmission primary carrier; the UE determines that the carrier where the D-SR is located as the uplink transmission primary carrier by using the autonomously initiated D-SR process; and the UE receives the network side transmission
  • the uplink scheduling command is used for one of the multiple cells, the UE determines that the uplink transmission carrier of the cell needs to be used as the uplink transmission.
  • the main carrier is transmitted.
  • the method further includes: if the UE currently selects an uplink transmission carrier of the secondary cell as the uplink transmission primary carrier, and the secondary cell is not configured with the CBRA and the D-SR resource, when the UE needs to initiate an uplink scheduling request, the UE switches to the primary The cell initiates the CBRA, and uses the uplink transmission carrier of the primary cell as the uplink transmission primary carrier; or, if the UE currently selects the uplink transmission carrier of the secondary cell as the uplink transmission primary carrier, and the secondary cell only configures the D-SR resource, When the UE fails to transmit D-SR in the secondary cell, the UE switches to the primary cell to initiate CBRA, and uses the uplink transmission carrier of the primary cell as the uplink transmission primary carrier; or if the UE currently selects the up
  • the method when the UE determines, by using an autonomously initiated D-SR process, that the carrier where the D-SR is located is used as an uplink transmission primary carrier, the method is The method further includes: if the UE currently selects an uplink transmission carrier of the secondary cell as the uplink transmission primary carrier, and the secondary cell is not configured with the CBRA and the D-SR resource, when the UE needs to initiate an uplink scheduling request, the UE switches to the primary cell. The D-SR is initiated, and the uplink transmission carrier of the primary cell is used as the uplink transmission primary carrier.
  • the method further includes one or any combination of the following steps: the UE retains the uplink transmission carrier All the resources are allocated; the UE stops all the transmissions on the uplink transmission carrier; the UE clears the HARQ (Hybrid Automatic Repeat Request) buffer corresponding to the uplink transmission carrier, and clears the corresponding corresponding to the uplink transmission carrier. Uplink grant information; the UE resets the context associated with the media access control MAC uplink.
  • the UE retains the uplink transmission carrier All the resources are allocated; the UE stops all the transmissions on the uplink transmission carrier; the UE clears the HARQ (Hybrid Automatic Repeat Request) buffer corresponding to the uplink transmission carrier, and clears the corresponding corresponding to the uplink transmission carrier.
  • Uplink grant information the UE resets the context associated with the media access control MAC uplink.
  • the method further includes: if the UE currently selects an uplink transmission carrier corresponding to the primary cell as an uplink transmission primary carrier, the UE receives When the command sent by the network side to activate the secondary cell is activated, the UE is only activated.
  • the downlink transmission resource of the secondary cell if the uplink transmission carrier corresponding to the secondary cell currently selected by the UE is the uplink transmission primary carrier, when the UE receives the command of deactivating the secondary cell sent by the network side, the UE only The uplink transmission resource of the secondary cell is deactivated, and the uplink transmission carrier corresponding to the primary cell is used as the uplink transmission primary carrier.
  • the method before the acquiring, by the UE, the transmission resource of the cell set for serving the UE, the method further includes: The UE reports the capability information of the UE supporting the uplink transmission primary carrier switching capability to the network side.
  • An uplink transmission primary carrier switching control apparatus includes: a resource determining unit, configured to determine, for a user equipment UE, a transmission resource of a set of cells used for serving the UE, where multiple cells are included
  • the uplink transmission carrier configuration resource is used to implement the uplink transmission primary carrier of the UE to switch between uplink transmission carriers corresponding to different cells; the sending unit is connected to the resource determining unit, and configured to set the cell The transmission resource is notified to the UE.
  • the uplink transmission primary carrier switching control apparatus may determine that the uplink transmission primary carrier of the UE may be the UE by determining an uplink transmission resource that is configured by the user equipment UE to serve the UE.
  • the switching between multiple different cells in the set of cells configured to serve the UE enhances the transmission flexibility of the uplink transmission primary carrier of the user equipment, and takes into account the transmission power and the transmission requirement of the UE service, and the prior art Setting the macro cell as the primary cell and using the uplink transmission carrier of the macro cell for transmission avoids the problem of large transmission power and large interference to other users.
  • the small cell is set as the primary cell and the small cell is used.
  • the uplink transmission carrier Compared with the uplink transmission carrier, the problem of the service transmission interruption caused by the UE moving frequently switching the cell and the signaling load of the core network are avoided.
  • the uplink transmission carrier and the downlink of the UE are used.
  • the implementation is only for the UE.
  • the uplink transmission carrier switches between cells, taking into account the transmission advantages of different cells.
  • the configuration resources of the uplink transmission carrier of each cell include the following resources: CBRA, D-SR, and PUCCH.
  • the sending unit is further configured to: notify the UE to switch an uplink transmission primary carrier.
  • the base station notifies the UE to switch the uplink transmission primary carrier, and when there are more than two cells serving the UE, the determined selection may be directly determined in multiple cells.
  • the cell improves the accuracy of the handover cell.
  • the method is: using a layer 3, layer 2, or layer 1 command. Notifying the UE to select an uplink transmission carrier of a specific cell as an uplink transmission primary carrier; or, by using a layer 3, layer 2, or layer 1 command, notifying the UE of uplink configuration information of a primary carrier, including an uplink transmission master Corresponding relationship between the cell and the subframe corresponding to the carrier; or, by deactivating the configuration resource of the uplink transmission carrier of the secondary cell that is the uplink transmission primary carrier of the UE, instructing the UE to use the uplink transmission carrier of the primary cell as the uplink The primary carrier is transmitted.
  • the sending unit when the sending unit notifies the UE to select an uplink transmission carrier of a specific cell as an uplink transmission primary carrier by using a layer 3 command, the layer The 3 command also includes a configuration resource of the uplink transmission carrier of the specific cell.
  • the number of cells that provide the uplink transmission carrier configuration resource for the UE is greater than or equal to that when the UE actually performs uplink transmission.
  • the foregoing handover control apparatus further includes: a receiving unit, connected to the resource determining unit, configured to determine, for the UE, configured for the UE Receiving, by the UE, the capability information of the UE that supports the uplink transmission primary carrier handover capability, and the resource determining unit determines that the The transmission resource of the cell set configured by the UE for serving the UE is specifically: determining, according to the capability information reported by the UE, the transmission of the cell set configured for the UE to serve the UE Resources.
  • An uplink transmission primary carrier switching apparatus includes: an acquiring unit, configured to acquire, by a network side, a transmission resource of a set of cells used for serving a UE, where an uplink transmission carrier of multiple cells is included And a processing unit, configured to be connected to the acquiring unit, configured to: when the uplink transmission primary carrier switching needs to be performed, switch the uplink transmission primary carrier to the new cell corresponding to the configuration resource of the uplink transmission carrier of the new cell Uplink transmission carrier.
  • the uplink transmission primary carrier of the UE is configured to be configured for the UE by determining the uplink transmission resource configured for the UE to serve the UE.
  • the switching between multiple different cells in the cell set for serving the UE enhances the transmission flexibility of the user equipment uplink transmission primary carrier, taking into account the transmission power and the transmission requirement of the UE service, and the prior art will
  • the macro cell is set as the primary cell, and the uplink transmission carrier of the macro cell is used for transmission, which avoids the problem of large transmission power and large interference to other users.
  • the small cell is set as the primary cell, and the small cell is used.
  • the uplink transmission carrier and the downlink transmission to the UE are performed.
  • the uplink transmission carrier only for the UE is implemented between the cells. In other words, taking into account the transmission advantages of different cells.
  • the processing unit determines, according to the notification of switching the uplink transmission primary carrier that is sent by the network side, that the uplink transmission primary carrier switching needs to be performed.
  • the network side notifies the UE to switch the uplink transmission primary carrier, and when there are more than two cells serving the UE, the determined selection may be directly determined in multiple cells.
  • the cell improves the accuracy of the handover cell.
  • the processing unit receives, by using one of the following manners, a notification of a handover uplink transmission primary carrier that is sent by the network side:
  • the layer 3, layer 2, or layer 1 command is used to receive the notification that the uplink transmission carrier of the specific cell sent by the network side is used as the uplink transmission primary carrier; or, by using the layer 3, layer 2, or layer 1 command, the uplink sent by the network side is received.
  • the command for configuring the resource is used as a notification that the uplink transmission carrier of the primary cell is used as the uplink transmission primary carrier.
  • the processing unit when the processing unit receives the uplink transmission carrier that selects a specific cell and is sent by the network side as the uplink transmission primary carrier, The acquiring unit is further configured to: obtain, by using the layer 3 command, a configuration resource of an uplink transmission carrier of the specific cell; and the processing unit switches the uplink transmission primary carrier by using a configuration resource of an uplink transmission carrier of the new cell.
  • the uplink transmission primary carrier is switched to the uplink transmission carrier corresponding to the specific cell by using the configuration resource of the uplink transmission carrier of the specific cell obtained from the layer 3 command.
  • the processing unit determines, by using one of the following manners, that an uplink transmission primary carrier switching needs to be performed: determining, by using autonomously initiated random access procedure, The transmission carrier where the preamble sequence is located as the uplink transmission primary carrier; determining, by the autonomously initiated D-SR process, that the carrier where the D-SR is located is used as the uplink transmission primary carrier; when receiving the network side, the transmission is performed for the multiple cells.
  • an uplink scheduling command of a cell it is determined that the uplink transmission carrier of the cell needs to be used as an uplink transmission primary carrier.
  • the processing unit determines, by using an autonomously initiated random access procedure, that the transmission carrier where the preamble sequence is located is used as the uplink transmission primary carrier.
  • the processing unit is further configured to: if the uplink transmission carrier of the secondary cell is currently selected as the uplink transmission primary carrier, and the secondary cell is not configured with the CBRA and the D-SR resource, when the uplink scheduling request needs to be initiated, the handover to the primary cell initiates the CBRA, And the uplink transmission carrier of the primary cell is used as the uplink transmission primary carrier; or if the uplink transmission carrier of the secondary cell is currently selected as the uplink transmission primary carrier, and the secondary cell only configures the D-SR resource, when the D-SR occurs in the secondary cell When the SR transmission fails, the primary cell is switched to initiate the CBRA, and the uplink transmission carrier of the primary cell is used as the uplink. If the uplink transmission carrier of the secondary cell is selected as the uplink transmission primary carrier, and the
  • the processing unit is further used in one or any combination of the following steps for the uplink transmission carrier to be selected: the uplink transmission carrier is reserved. All the resources are allocated; all the transmissions on the uplink transmission carrier are stopped; the HARQ buffer corresponding to the uplink transmission carrier is cleared, the uplink authorization information corresponding to the uplink transmission carrier is cleared, and the context related to the media access control MAC uplink is reset.
  • the processing unit is further configured to: when the uplink transmission carrier corresponding to the primary cell is currently selected as an uplink transmission primary carrier, when receiving the network side When the command to activate the secondary cell is sent, only the downlink transmission resource of the secondary cell is activated; if the uplink transmission carrier corresponding to the secondary cell is currently selected as the uplink transmission primary carrier, when receiving the command of deactivating the secondary cell sent by the network side The uplink transmission resource of the secondary cell is activated only, and the uplink transmission carrier corresponding to the primary cell is used as the uplink transmission primary carrier.
  • the foregoing switching apparatus further includes: a reporting unit, connected to the acquiring unit, configured to acquire, by the network side, a cell for providing service for the UE Before the aggregated transmission resources, the capability information supporting the uplink transmission primary carrier switching capability is reported to the network side.
  • a base station includes: the uplink transmission primary carrier switching control apparatus provided by the embodiment of the present invention.
  • an uplink transmission primary carrier switching control apparatus is added to the base station, and the uplink transmission resource of the UE is determined by determining an uplink transmission resource configured for the user equipment UE to serve the UE.
  • the primary carrier can be switched between multiple different cells in the set of cells configured for the UE to serve the UE, which enhances the transmission flexibility of the uplink transmission primary carrier of the user equipment, and takes into account the transmission power and the transmission requirement of the UE service.
  • the macro cell is set as the primary cell, and the uplink transmission carrier of the macro cell is used for transmission, thereby avoiding the problem that the transmission power is large and the interference to other users is large, and the small cell is set to Compared with the uplink transmission carrier of the small cell, the primary cell avoids the problem of service transmission interruption caused by frequent handover of the UE by the UE and increases the signaling load of the core network.
  • the UE is used.
  • the uplink transmission carrier and the downlink transmission carrier simultaneously perform inter-cell handover, and are implemented only for the UE. Switch between transmission carrier cell, taking into account the advantages of different transmission cell.
  • the user equipment provided by the embodiment of the present invention includes: the foregoing uplink transmission primary carrier switching apparatus provided by the embodiment of the present invention.
  • the primary cell avoids the problem of service transmission interruption caused by frequent handover of the UE by the UE and increases the signaling load of the core network, and when performing cell handover in the prior art,
  • the uplink transmission carrier and the downlink transmission carrier of the UE simultaneously perform inter-cell cut
  • the uplink transmission carrier only for the UE is switched between cells, taking into account the transmission advantages of different cells.
  • FIG. 1 is a schematic structural diagram of a format of a medium access control unit in the prior art
  • FIG. 4 is a schematic structural diagram of an uplink transmission primary carrier switching control apparatus according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of an uplink transmission primary carrier switching apparatus according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present invention.
  • an uplink transmission primary carrier switching control method provided by the embodiment of the present invention, as shown in FIG. 2, includes:
  • Step 202 Determine a transmission resource of a cell set configured for the UE to be served by the UE, where the configuration resource of the uplink transmission carrier of the multiple cells is used to implement uplink transmission of the UE.
  • the primary carrier corresponds to different cells. Switching between uplink transmission carriers;
  • Step 204 Notify the UE of the transmission resource of the cell set.
  • an uplink transmission carrier that the UE currently uses to transmit uplink data is referred to as an uplink transmission primary carrier.
  • the uplink transmission primary carrier of the UE may be configured for the UE. Switching between multiple different cells in the set of cells serving the UE, enhancing the transmission flexibility of the uplink transmission main carrier of the user equipment, taking into account the transmission work Compared with the transmission requirement of the UE service, in the prior art, the macro cell is set as the primary cell, and the uplink transmission carrier of the macro cell is used for transmission, thereby avoiding the problem that the transmission power is large and the interference to other users is large, and the existing In the technology, the small cell is set as the primary cell, and the uplink transmission carrier of the small cell is used for transmission, which avoids the problem of service transmission interruption caused by the UE moving frequently switching the cell and increasing the signaling load of the core network, and the prior art When the cell handover is performed, the uplink transmission carrier and the downlink transmission carrier of the UE are simultaneously switched between cells, and the
  • the Non-Access Stratum (NAS) mobility, security, and mobility of the UE are bound to the PCell, and do not change with the handover of the uplink transmission primary carrier between different cells.
  • NAS Non-Access Stratum
  • the transmission resource includes the uplink transmission resource and the downlink carrier resource of the UE, that is, the base station can simultaneously configure multiple cells in the cell set.
  • the uplink transmission resource and the downlink transmission resource are notified to the UE together after the configuration is completed, so as to improve resource allocation efficiency.
  • the cell set serving the UE may still include the uplink transmission carrier of the multiple cells, but not to exceed the uplink transmission of the UE.
  • the uplink transmission carrier of multiple cells can only be used as the uplink transmission primary carrier of the UE by the uplink transmission carrier of one cell at the same time.
  • the uplink transmission carrier of the UE is guaranteed.
  • the aggregation of uplink transmission carriers of multiple cells can be used as the uplink transmission primary carrier of the UE.
  • a set of cells serving the UE includes a macro cell and a small cell.
  • the macro cell serves as a primary cell
  • the small cell serves as a secondary cell. Since the macro cell has a larger coverage area than the small cell, the uplink transmission primary carrier defaults.
  • the uplink transmission carrier of the macro cell is selected. When the user moves frequently, the uplink transmission carrier of the macro cell serves as the uplink transmission primary carrier, and avoids the industry caused by frequent handover due to user movement when transmitting through the uplink transmission carrier of the small cell.
  • the carrier is transmitted for transmission, that is, the uplink transmission carrier of the small cell is used as the uplink transmission primary carrier of the UE.
  • the downlink transmission carrier transmission quality of the cell may be switched to the secondary cell by using the uplink transmission primary carrier, and the downlink transmission carrier still uses the downlink transmission carrier of the primary cell, and simultaneously switches to the other uplink transmission carrier and the downlink transmission carrier in the prior art.
  • the uplink transmission carrier and the downlink transmission carrier of different cells are used, taking into account the transmission advantages of different cells, and improving data transmission efficiency.
  • the configuration resources of the uplink transmission carrier of each cell include the following resources: CBRA, D-SR, and PUCCH.
  • the primary carrier resource may only be in the cell corresponding to the uplink transmission primary carrier.
  • the base station configures the PUCCH resource for the UE on multiple cells, and only the PUCCH resource in the uplink transmission resource of the cell corresponding to the uplink transmission primary carrier can be used; and/or the base station configures the CBRA for the UE on multiple cells.
  • CBRA resources in the uplink transmission resources in the uplink transmission primary carrier corresponding cell can be used; and/or for the uplink single carrier transmission UE, selecting the uplink transmission carrier of any cell as the uplink transmission primary carrier At the same time, the UE automatically stops the uplink transmission carrier in other cells, including PUSCH and/or SRS. It should be noted that when the UE selects the uplink transmission carrier of any cell as the uplink transmission primary carrier, the downlink transmission carrier linked by the system information block 2 (SIB2) of the cell must be in an active state.
  • SIB2 system information block 2
  • the UE only supports downlink transmission carrier aggregation or uplink single carrier transmission.
  • the set of cells configured for the UE to serve the UE includes a macro cell and a small cell, the macro cell is used as the primary cell, the small cell is used as the secondary cell, and the uplink transmission master is configured in both the macro cell and the small cell.
  • the carrier resources including: CBRA, D-SR, and PUCCH resources, the uplink transmission carrier and the downlink transmission carrier of the UE are all transmitted on the macro cell by default, and when the receiving base station notifies the handover to transmit through the uplink transmission carrier of the small cell,
  • the CBRA, D-SR, and PUCCH resources configured in the small cell may be used, and the CBRA, D-SR, and PUCCH resources configured in the macro cell may not be used, and the uplink transmission carrier of the macro cell is stopped, including: PUSCH and / Or SRS, at the same time, the downlink transmission carrier of the small cell must also be activated.
  • the method further includes: informing the UE to switch the uplink transmission primary carrier.
  • the base station is notified by the base station to switch the uplink transmission primary carrier.
  • the cell to be selected may be directly determined in multiple cells, and the accuracy of the handover cell is improved, for example.
  • the set of cells serving the UE includes: one primary cell and seven secondary cells, and the base station can directly specify the cell corresponding to the uplink transmission primary carrier in the eight cells by sending a notification.
  • the UE is notified to switch the uplink transmission primary carrier, and the following methods are used.
  • the base station may use one of the modes separately or may be used in combination in multiple manners.
  • Manner 1 The UE is notified by the layer 3, layer 2 or layer 1 command to select the uplink transmission carrier of the specific cell as the uplink transmission primary carrier.
  • the UE only supports downlink carrier aggregation, and the uplink only supports single carrier transmission, and the UE has the capability of uplink transmission primary carrier handover, that is, the cell set serving the UE may include two cells.
  • the uplink can only be transmitted through the uplink transmission carrier configured by one of the cells.
  • the specific steps of informing the UE to select the uplink transmission carrier of the specific cell as the uplink transmission primary carrier by using the layer 3, layer 2 or layer 1 command includes:
  • Step 1 The cell set serving the UE includes a PCell and an SCell, and both the PCell and the SCell provide the uplink transmission resource and the downlink transmission resource, for example, the base station is the UE. Both the PCell and the SCell are configured with uplink transmission resources such as D-SR, PUCCH, and SRS.
  • uplink transmission resources such as D-SR, PUCCH, and SRS.
  • Step 2 After receiving the uplink transmission resource and the downlink transmission resource configuration of the PCell and the SCell notified by the base station, the UE selects the uplink transmission carrier of the PCell as the uplink transmission primary carrier by default;
  • Step 3 The base station obtains the transmission signal quality of the cell by using positioning or UE measurement.
  • the base station transmits the layer 3, layer 2 or layer 1 (L3/L2/L1). Instructing the UE to activate the SCell downlink transmission carrier, and the UE starts to transmit through the downlink transmission carrier of the SCell;
  • Step 4 The base station determines that the UE stays in the SCell for a relatively long time, and determines that the UE uplink transmission carrier is also switched to the SCell.
  • the base station sends the L3/L2/L1 command to the UE, and the UE is notified to switch the uplink transmission primary carrier to the SCell.
  • Step 5 After receiving the command to switch the uplink transmission primary carrier to the SCell at time n, the UE completes the uplink transmission primary carrier handover process at time n+k, that is, the transmission of the uplink transmission carrier of the SCell is started at the time of n+k, and the transmission is stopped.
  • the uplink transmission carrier of the PCell is transmitted, and the base station performs uplink scheduling on the SCell at the time of n+k;
  • Step 6 When the UE stops transmitting through the uplink transmission carrier of the PCell, the HARQ cache data on the PCell and the uplink transmission primary carrier authorization information corresponding to the PCell may be simultaneously cleared;
  • Step 7 When the UE starts to transmit through the uplink transmission carrier of the SCell, the uplink feedback corresponding to the downlink transmission carrier of the PCell and the SCell is transmitted on the uplink transmission carrier of the SCell, and when the UE has the uplink service transmission, the D of the SCell is adopted. -SR initiates a request.
  • the UE only supports downlink carrier aggregation, and the uplink only supports single-carrier transmission, and the UE has the capability of uplink transmission primary carrier handover, that is, the cell set serving the UE may include two The cell, but at the same time, the uplink can only be transmitted through the uplink transmission carrier configured by one of the cells.
  • the specific steps of informing the UE to select the uplink transmission carrier of the specific cell as the uplink transmission primary carrier by using the layer 3, layer 2 or layer 1 command includes:
  • Step 1 The base station selects an uplink transmission carrier of the SCell as the uplink transmission primary carrier of the UE;
  • Step 2 The base station sends an L3/L2/L1 command to notify the UE to switch the uplink transmission primary carrier to the PCell.
  • Step 3 The UE stops transmitting through the uplink transmission carrier of the SCell, and switches to the uplink transmission carrier of the PCell for transmission; simultaneously performs feedback of the SCell and PCell downlink transmission carriers and CSI/SRS transmission on the PCell; when the UE has uplink service transmission At this time, the D-SR process is initiated on the PCell.
  • the second mode is to notify the UE of the subframe configuration information of the uplink transmission primary carrier by using the layer 3, layer 2, or layer 1 command, and the corresponding relationship between the cell and the subframe corresponding to the uplink transmission primary carrier is included.
  • the UE only supports downlink carrier aggregation, and the uplink only supports single carrier transmission, and the UE has the capability of uplink transmission primary carrier handover, that is, the cell set serving the UE may include two cells.
  • the uplink can only be transmitted through the uplink transmission carrier configured by one of the cells.
  • the specific steps of informing the UE to transmit the subframe configuration information of the primary carrier by using the layer 3, layer 2, or layer 1 command include:
  • Step 1 The base station configures one subframe configuration information for the uplink transmission primary carrier of the UE, where the subframe configuration information includes a correspondence between the cell and the subframe corresponding to the uplink transmission primary carrier, for example, a period of 20 subframes, where the former
  • the uplink transmission carrier of the PCell is used as the uplink transmission primary carrier of the UE
  • the k subframes are switched to the cell corresponding to the uplink transmission primary carrier
  • the remaining 18-k subframes are used as the uplink transmission primary carrier of the UE.
  • Step 2 After receiving the subframe configuration information notified by the base station, the UE indicates, according to the subframe configuration information, the uplink transmission carrier of the corresponding cell as the uplink transmission primary carrier.
  • Step 3 For the feedback of the downlink transmission carrier of the SCell and the PCell, and the transmission of the CSI/SRS, the UE may be sent to the cell corresponding to the currently selected uplink transmission primary carrier.
  • the third method is to activate the configuration resource of the uplink transmission carrier of the secondary cell that is the uplink transmission primary carrier of the UE, and instruct the UE to use the uplink transmission carrier of the primary cell as the uplink transmission primary carrier.
  • the UE only supports downlink carrier aggregation, and the uplink only supports single carrier transmission, and the UE has the capability of uplink transmission primary carrier handover, that is, the cell set serving the UE may include two cells.
  • the uplink can only be transmitted through the uplink transmission carrier configured by one of the cells.
  • the specific steps of instructing the UE to use the uplink transmission carrier of the primary cell as the uplink transmission primary carrier by deactivating the configuration resource of the uplink transmission carrier of the secondary cell that is the uplink transmission primary carrier of the UE includes:
  • Step 1 The base station selects an uplink transmission carrier of the SCell as the uplink transmission primary carrier of the UE;
  • Step 2 The base station sends a configuration resource for deactivating the uplink transmission carrier of the SCell currently serving as the primary transmission host of the UE, and switches the uplink transmission primary carrier to the uplink transmission carrier of the PCell.
  • Step 3 After receiving the command to deactivate the configuration resource of the SCell uplink transmission primary carrier, the UE stops transmitting through the uplink transmission carrier of the SCell at the time delay k, and switches to the uplink transmission carrier transmitted through the PCell; The feedback of the SCell and PCell downlink transmission carriers and the CSI/SRS transmission are performed on the PCell; when the UE has the uplink service transmission, the D-SR process is initiated on the PCell.
  • the layer 3 command when the layer 3 command is used to notify the UE to select an uplink transmission carrier of a specific cell as the uplink transmission primary carrier, the layer 3 command further includes the specific cell. Configuration resources of the uplink transmission carrier.
  • the base station notifies the UE to select the uplink transmission carrier of the specific cell as the uplink transmission primary carrier by using the layer 3 command (L3 command), and may simultaneously carry the configuration resource corresponding to the uplink transmission carrier of the specific cell.
  • the The configuration resources include: D-SR, SRS, CSI, PUCCH, and/or SCell RA. Therefore, when the uplink transmission carrier of any cell is selected as the uplink transmission primary carrier, the configuration resources in the cell can be reserved. Can be released by yourself.
  • the number of cells that provide the uplink transmission carrier configuration resource for the UE is greater than or equal to the uplink transmission carrier used by the UE when performing uplink transmission.
  • the maximum number of corresponding cells is greater than or equal to the uplink transmission carrier used by the UE when performing uplink transmission.
  • the number of cells that provide the configuration resources of the uplink transmission carrier for the UE is greater than or equal to the maximum number of cells corresponding to the uplink transmission carrier used by the UE for uplink transmission, so that the uplink transmission primary carrier of the UE Switching between multiple different cells.
  • the number of cells that provide the uplink transmission carrier configuration resources for the UE is three, including one primary cell and two secondary cells, but the UE uplink only supports single carrier transmission, that is, the UE uses the uplink transmission.
  • the maximum number of cells corresponding to the uplink transmission carrier is one, and only the uplink transmission carrier of one of the three cells can be used as the uplink transmission primary carrier of the UE at the same time.
  • the method before determining the transmission resource of the cell set configured for the UE to be served by the UE, the method further includes: receiving the The UE supports the capability information of the uplink transmission primary carrier switching capability, and determines the transmission resource that is configured by the UE to be used for serving the UE, and is specifically configured to determine, according to the capability information reported by the UE, the configured for the UE.
  • the UE provides a transmission resource of a set of cells served.
  • the base station when the UE reports to the base station that it supports the uplink transmission primary carrier switching capability, the base station can enable the UE uplink transmission primary carrier according to the capability of the UE and its own policy. Related functions and configuration of the switch. If the UE does not report to the base station that it supports the uplink transmission primary carrier switching capability, the base station may also enable the related function and configuration of the uplink transmission primary carrier switching for the UE.
  • an uplink transmission primary carrier switching method provided by the embodiment of the present invention, as shown in FIG. 3, includes:
  • Step 302 The UE acquires, by the network side, a transmission resource of a cell set for serving the UE, where the configuration resource of the uplink transmission carrier of the multiple cells is included;
  • Step 304 When the UE determines that the uplink transmission primary carrier handover is required, the UE switches the uplink transmission primary carrier to the uplink transmission carrier corresponding to the new cell by using the configuration resource of the uplink transmission carrier of the new cell.
  • the uplink transmission primary carrier may be configured for the UE.
  • Switching between multiple different cells in the set of cells serving the UE enhances the transmission flexibility of the uplink transmission primary carrier of the user equipment, and takes into consideration the transmission power and the transmission requirement of the UE service, and sets the macro cell in the prior art.
  • the main cell avoids the problem of large transmission power and large interference to other users.
  • the small cell is set as the primary cell, and the uplink transmission carrier of the small cell is used.
  • the uplink transmission carrier and the downlink transmission carrier of the UE are simultaneously performed between the cells.
  • the uplink transmission carrier only for the UE is switched between cells, taking into account the transmission advantages of different cells.
  • the UE determines that the uplink transmission primary carrier switching needs to be performed according to the notification that the uplink transmission primary carrier is sent by the network side.
  • the base station notifies the UE to switch the uplink transmission primary carrier, and when there are more than two cells serving the UE, the cell to be selected may be directly determined in the multiple cells, and the handover is improved.
  • the accuracy of the community is improved.
  • the UE receives the notification of switching the uplink transmission primary carrier sent by the network side by receiving the layer 3, layer 2, or layer 1 command.
  • the uplink transmission carrier of the primary cell serves as a notification of the uplink transmission primary carrier.
  • the method when the UE receives the notification that the uplink transmission carrier of the specific cell sent by the network side is selected as the uplink transmission primary carrier by using the layer 3 command, the method further The method includes: the UE acquires the configuration resource of the uplink transmission carrier of the specific cell from the layer 3 command; the UE switches the uplink transmission primary carrier to the uplink transmission carrier corresponding to the new cell by using the configuration resource of the uplink transmission carrier of the new cell, Specifically, the UE switches the uplink transmission primary carrier to the uplink transmission carrier corresponding to the specific cell by using the configuration resource of the uplink transmission carrier of the specific cell obtained from the layer 3 command.
  • the UE determines that the uplink transmission primary carrier handover needs to be performed by using one of the following manners: the UE determines that the preamble sequence needs to be located through the autonomously initiated random access procedure.
  • the transmission carrier is used as the uplink transmission primary carrier; the UE passes the self The D-SR process initiated by the master determines that the carrier where the D-SR is located is used as the uplink transmission primary carrier; when receiving the uplink scheduling command sent by the network side for one of the multiple cells, the UE determines that the UE needs to The uplink transmission carrier of the cell serves as an uplink transmission primary carrier.
  • the UE may not only switch the cell corresponding to the uplink transmission primary carrier by receiving the command sent by the base station, but also determine, in multiple cells, the corresponding cell by using the uplink transmission resource of multiple cells.
  • the uplink transmission carrier is used as the uplink transmission primary carrier, and the UE selects according to the uplink transmission resources of the multiple cells, and has better adaptability to the uplink transmission service of the UE, and can select different cells according to service requirements, and the flexibility is stronger.
  • the UE uplink transmission primary carrier may switch between multiple cells serving the UE according to the notification of the base station, or the UE may perform selection switching according to the uplink transmission resources of multiple cells. May be used in combination with each other.
  • the UE When the UE receives the uplink scheduling command for one of the multiple cells sent by the network side, the UE uses the uplink transmission carrier of the cell as the uplink transmission primary carrier.
  • a cell set that provides services for a UE that supports only single-carrier transmission in the uplink includes two cells: a PCell and an SCell, and an uplink transmission resource and a downlink transmission resource are configured in the Pcell and the Scell, and the UE has an uplink transmission.
  • the capability of the primary carrier to be switched, and only the SCell downlink transmission carrier is activated; the base station schedules the UE to transmit through the uplink transmission carrier of the SCell, and the UE activates the SCell uplink transmission carrier to deactivate the PCell uplink transmission carrier at the time of the corresponding PUSCH transmission.
  • the base station can activate the PCell uplink in a similar manner.
  • the UE determines that the transmission carrier where the preamble sequence is to be used as the uplink transmission primary carrier by using the autonomously initiated random access procedure, and specifically includes the following embodiments. .
  • the UE if the UE currently selects the uplink transmission carrier of the secondary cell as the uplink transmission primary carrier, and the secondary cell is not configured with the CBRA and the D-SR resources, when the UE needs to initiate an uplink scheduling request, the UE switches to the primary cell.
  • the CBRA is initiated, and the uplink transmission carrier of the primary cell is used as the uplink transmission primary carrier.
  • the cell set that provides services for the UE that supports only single-carrier transmission in the uplink includes two cells: a PCell and an SCell, and both the Pcell and the Scell are configured with an uplink transmission resource and a downlink transmission resource, and the UE has an uplink transmission primary carrier handover.
  • the base station does not allow D-SR or CBRA to be transmitted on the SCell, or the SCell is not allowed to transmit D-SR or CBRA.
  • the uplink transmission carrier of the SCell is selected as the uplink transmission primary carrier
  • the UE wants to send an uplink scheduling request The UE automatically selects the uplink transmission carrier of the PCell as the uplink transmission primary carrier, and performs D-SR or CBRA transmission.
  • the UE switches.
  • the CBRA is initiated to the primary cell, and the uplink transmission carrier of the primary cell is used as the uplink transmission primary carrier.
  • the cell set that provides services for the UE that supports only single-carrier transmission in the uplink includes two cells: a PCell and an SCell, and both the Pcell and the Scell are configured with an uplink transmission resource and a downlink transmission resource, and the UE has an uplink transmission primary carrier handover.
  • the ability of the UE to select the uplink transmission carrier of the SCell as the uplink transmission primary carrier the UE fails the radio link on the SCell; when the UE detects the failure of the SCell radio link, the UE automatically selects the uplink transmission carrier of the PCell as the uplink transmission.
  • the primary carrier performs D-SR or CBRA transmission; on the Pcell uplink grant information (UL grant) allocated by the base station to the UE, the UE sends a radio link failure indication; the base station configures the UE to release the Scell uplink transmission resource or reconfigure the Scell for the UE. Uplink transmission resources.
  • Embodiment 3 If the UE currently selects the uplink transmission carrier of the secondary cell as the uplink transmission primary carrier, and the transmission quality of the secondary cell does not meet the requirement, the UE uses the uplink transmission carrier of the primary cell as the uplink transmission primary carrier, and initiates The Routing Area (RA) is updated.
  • RA Routing Area
  • the uplink transmission carrier of the cell selected by the UE is used as the uplink transmission primary carrier, once the quality of the uplink transmission carrier is deteriorated or the transmission quality cannot meet the requirements, for example, the transmission quality is deteriorated, and radio resource management (Radio Resource Management, egRRM) When the measurement is below a certain threshold or the radio link management (RLM) process occurs, the timer (T310) times out, the UE switches the uplink transmission primary carrier to the uplink transmission carrier of other cells to ensure the uplink transmission of the UE. Carrier transmission quality.
  • Radio Resource Management Radio Resource Management
  • the method when the UE determines that the carrier of the D-SR needs to be the uplink transmission primary carrier by using the autonomously initiated D-SR process, the method further includes: If the UE currently selects the uplink transmission carrier of the secondary cell as the uplink transmission primary carrier, and the secondary cell is not configured with the CBRA and the D-SR resource, when the UE needs to initiate an uplink scheduling request, the UE switches to the primary cell to initiate the D-SR.
  • the uplink transmission carrier of the primary cell is used as the uplink transmission primary carrier.
  • the method further includes one or any combination of the following steps: the UE reserves all configuration resources of the uplink transmission carrier. The UE stops all the transmissions on the uplink transmission carrier; the UE clears the Hybrid Automatic Repeat Request (HARQ) buffer corresponding to the uplink transmission carrier, and clears the uplink authorization information corresponding to the uplink transmission carrier; The access control MAC uplink related context reset.
  • HARQ Hybrid Automatic Repeat Request
  • all the configuration resources of the uplink transmission carrier are reserved for the uplink transmission carrier to be selected, so that the uplink transmission carrier is selected again as the uplink transmission primary carrier, and the HARQ buffer corresponding to the uplink transmission carrier is cleared to release.
  • the storage space of the base station or the server clears the uplink grant information corresponding to the uplink transport carrier, so as to authorize other uplink transport carriers to serve as the uplink transport primary carrier, thereby avoiding the collision of the authorization information and exceeding the capability of the uplink transmission carrier of the UE.
  • the method further includes: if the UE currently selects an uplink transmission carrier corresponding to the primary cell as an uplink transmission primary carrier, the UE sends the network side to receive When the command of the secondary cell is activated, the UE only activates the downlink transmission resource of the secondary cell; if the UE currently selects the uplink transmission carrier corresponding to the secondary cell as the uplink transmission primary carrier, the UE receives the deactivation auxiliary sent by the network side. When the cell is in the command, the UE only deactivates the uplink transmission resource of the secondary cell, and uses the uplink transmission carrier corresponding to the primary cell as the uplink transmission primary carrier.
  • the base station when the base station informs the UE to activate or deactivate the uplink transmission resource or the downlink transmission resource of the corresponding cell, the base station may simultaneously activate or deactivate the uplink transmission resource or the downlink transmission resource of the corresponding cell, or may only activate or deactivate the corresponding Uplink transmission resources or downlink transmission resources of the cell.
  • a cell set serving a single carrier uplink transmission UE Including two cells: PCell and SCell
  • the UE has the capability of uplink transmission primary carrier switching, and selects the uplink transmission carrier of the PCell as the current uplink transmission primary carrier; the base station sends a command to activate the SCell;
  • the uplink transmission carrier of the PCell is used as the uplink transmission primary carrier, so the UE only activates the SCell downlink transmission resource.
  • a cell set serving a UE for single-carrier uplink transmission includes two cells: a PCell and an SCell, and the UE has the capability of uplink transmission primary carrier handover, and selects an uplink transmission carrier of the SCell as the uplink transmission carrier.
  • the current uplink transmission primary carrier the base station sends a command to deactivate the SCell; if the UE is a single carrier uplink transmission, and can support the downlink carrier aggregation, the UE can only activate the Scell uplink transmission resource, and the PCell uplink transmission carrier is used as the current uplink.
  • the primary carrier is transmitted.
  • the method before the UE acquires the transmission resource of the cell set for serving the UE, the method further includes: the UE reporting the UE support.
  • the capability information of the uplink transmission primary carrier switching capability is sent to the network side.
  • the UE stops transmitting through the original uplink transmission carrier at time n or n+k.
  • the uplink transmission primary carrier switching control apparatus includes: a resource determining unit 402, configured to determine a transmission of a cell set configured for the user equipment UE to serve the UE a resource, which includes a configuration resource of an uplink transmission carrier of a plurality of cells, to implement an uplink transmission primary carrier of the UE to switch between uplink transmission carriers corresponding to different cells; and a sending unit 404, connected to the resource determining unit 402, Transmission resource for collecting cells The source is notified to the UE.
  • the uplink transmission primary carrier switching control apparatus can determine that the uplink transmission primary carrier of the UE can be configured for the UE by determining the uplink transmission resource configured for the UE to serve the UE.
  • Switching between multiple different cells in the set of cells serving the UE enhances the transmission flexibility of the uplink transmission primary carrier of the user equipment, and takes into account the transmission power and the transmission requirement of the UE service, and the macro cell in the prior art
  • the primary cell is set to be transmitted by using the uplink transmission carrier of the macro cell, the problem that the transmission power is large and the interference to other users is large is avoided.
  • the small cell is set as the primary cell, and the small cell is used for the uplink transmission.
  • the uplink transmission carrier and the downlink transmission carrier of the UE are simultaneously Compared with the inter-cell handover, the uplink transmission carrier only for the UE is switched between cells, and Transmission advantage of different cells.
  • the cell set serving the UE may still include the uplink transmission carrier of the multiple cells, but not to exceed the uplink transmission of the UE.
  • the uplink transmission carrier of multiple cells can only be used as the uplink transmission primary carrier of the UE by the uplink transmission carrier of one cell at the same time.
  • the uplink transmission carrier of the UE is guaranteed.
  • the aggregation of uplink transmission carriers of multiple cells can be used as the uplink transmission primary carrier of the UE.
  • the configuration resources of the uplink transmission carrier of each cell include the following resources: CBRA, D-SR, and PUCCH.
  • the sending unit 404 is further configured to: notify the UE to switch the uplink transmission primary carrier.
  • the base station is notified by the base station to switch the uplink transmission primary carrier.
  • the cell to be selected may be directly determined in multiple cells, and the accuracy of the handover cell is improved.
  • the sending unit 404 notifies the UE to switch the uplink transmission primary carrier, and specifically uses the following manners, and the base station is notified.
  • the UE may use one of the methods alone or in combination in multiple ways.
  • Manner 1 The UE is notified by the layer 3, layer 2, or layer 1 command to select an uplink transmission carrier of a specific cell as the uplink transmission primary carrier.
  • the second mode is to notify the UE of the subframe configuration information of the uplink transmission primary carrier by using the layer 3, layer 2, or layer 1 command, and the corresponding relationship between the cell and the subframe corresponding to the uplink transmission primary carrier is included.
  • the third method is to activate the configuration resource of the uplink transmission carrier of the secondary cell that is the uplink transmission primary carrier of the UE, and instruct the UE to use the uplink transmission carrier of the primary cell as the uplink transmission primary carrier.
  • the layer 3 command further includes the A configuration resource of an uplink transmission carrier of a specific cell.
  • the number of cells that provide the uplink transmission carrier configuration resource for the UE is greater than or equal to the uplink transmission carrier used by the UE when performing uplink transmission.
  • the maximum number of corresponding cells is greater than or equal to the uplink transmission carrier used by the UE when performing uplink transmission.
  • the number of cells that provide the configuration resources of the uplink transmission carrier for the UE is greater than or equal to the maximum number of cells corresponding to the uplink transmission carrier used by the UE for uplink transmission, so that the uplink transmission primary carrier of the UE Switching between multiple different cells.
  • the number of cells that provide the uplink transmission carrier configuration resources for the UE is three, including one primary cell and two secondary cells, but the uplink of the UE supports only single carrier transmission, that is, the uplink used by the UE for uplink transmission.
  • the maximum number of cells corresponding to the transmission carrier is one, and only the uplink transmission carrier of one of the three cells can be used as the uplink transmission primary carrier of the UE at the same time.
  • the handover control apparatus further includes: a receiving unit 406, connected to the resource determining unit 402, configured to determine, for the UE, to provide services for the UE.
  • the UE receives the capability information of the UE that supports the uplink transmission primary carrier handover capability, and the resource determination unit 402 determines the transmission resource of the cell set configured by the UE for serving the UE, specifically: And determining, according to the capability information reported by the UE, a transmission resource that is configured by the UE to be used by the UE to provide a service for the UE.
  • the resource determining unit The 402 may employ a central processing unit or a single chip microcomputer, the transmitting unit 404 may employ a transmitter or a signal transmitter, and the receiving unit 406 may employ a receiver or a signal receiver.
  • An uplink transmission primary carrier switching apparatus provided by an embodiment of the present invention, as shown in FIG. 5, includes: an obtaining unit 502, configured to acquire, by a network side, a transmission resource of a set of cells used for serving a UE, including multiple The configuration resource of the uplink transmission carrier of the cell; the processing unit 504 is connected to the obtaining unit 502, and configured to: when determining that the uplink transmission primary carrier switching is required, the uplink transmission primary carrier is configured by using the configuration resource of the uplink transmission carrier of the new cell. Switch to the uplink transmission carrier corresponding to the new cell.
  • the uplink transmission primary carrier may be configured for the UE.
  • Switching between multiple different cells in the set of cells serving the UE enhances the transmission flexibility of the uplink transmission primary carrier of the user equipment, and takes into consideration the transmission power and the transmission requirement of the UE service, and sets the macro cell in the prior art.
  • the main cell avoids the problem of large transmission power and large interference to other users.
  • the small cell is set as the primary cell, and the uplink transmission carrier of the small cell is used.
  • the problem of the service transmission interruption caused by the frequent handover of the UE by the UE and the increase of the signaling load of the core network are avoided.
  • the uplink transmission carrier and the downlink transmission carrier of the UE are simultaneously performed.
  • the uplink transmission carrier only for the UE is switched between cells, taking into consideration Transmission advantage cells.
  • the processing unit 504 determines that the uplink transmission primary carrier switching needs to be performed according to the notification of the handover uplink transmission primary carrier sent by the network side.
  • the base station notifies the UE to switch the uplink transmission primary carrier, and when there are more than two cells serving the UE, the cell to be selected may be directly determined in the multiple cells, and the handover is improved.
  • the accuracy of the community is improved.
  • the processing unit 504 receives the notification of switching the uplink transmission primary carrier sent by the network side by using one of the following manners: 3.
  • the layer 2 or layer 1 command receives the notification that the uplink transmission carrier of the specific cell sent by the network side is selected as the uplink transmission primary carrier; or receives the uplink transmission master sent by the network side by using the layer 3, layer 2 or layer 1 command.
  • the notification of the subframe configuration information of the carrier including the correspondence between the cell and the subframe corresponding to the uplink transmission primary carrier; or the configuration of the uplink transmission carrier that is sent by the network side to deactivate the secondary cell that is currently the uplink transmission primary carrier
  • the resource command is used as a notification that the uplink transmission carrier of the primary cell is used as the uplink transmission primary carrier.
  • the processing unit 504 when the processing unit 504 receives the notification that the uplink transmission carrier of the specific cell sent by the network side is sent by the layer 3 as the uplink transmission primary carrier, the processing unit 504 acquires
  • the unit 502 is further configured to: obtain the configuration resource of the uplink transmission carrier of the specific cell from the layer 3 command; and the processing unit 504 switches the uplink transmission primary carrier to the new cell corresponding to the configuration resource of the uplink transmission carrier of the new cell.
  • the uplink transmission carrier is specifically configured to: switch the uplink transmission primary carrier to the uplink transmission carrier corresponding to the specific cell by using the configuration resource of the uplink transmission carrier of the specific cell obtained from the layer 3 command.
  • the processing unit 504 determines, by using one of the following manners, that the uplink transmission primary carrier switching needs to be performed: determining, by using the autonomously initiated random access procedure, the preamble sequence The transmission carrier is used as the uplink transmission primary carrier; the A-SR process is used to determine that the carrier where the D-SR is located is used as the uplink transmission primary carrier; when receiving the uplink for one of the multiple cells sent by the network side When scheduling the command, it is determined that the uplink transmission carrier of the cell needs to be used as the uplink transmission primary carrier.
  • the UE may not only switch the cell corresponding to the uplink transmission primary carrier by receiving the command sent by the base station, but also determine, in multiple cells, the corresponding cell by using the uplink transmission resource of multiple cells.
  • the uplink transmission carrier is used as the uplink transmission primary carrier, and the UE selects according to the uplink transmission resources of the multiple cells, and has better adaptability to the uplink transmission service of the UE, and can select different cells according to service requirements, and the flexibility is stronger.
  • the processing unit 504 determines, by using an autonomously initiated random access procedure, that the transmission carrier where the preamble sequence is to be used as the uplink transmission primary carrier, the processing unit 504 Also used for: if the current uplink transmission of the secondary cell is selected The wave serves as the uplink transmission primary carrier, and the secondary cell is not configured with the CBRA and the D-SR resources.
  • the primary cell When the uplink scheduling request needs to be initiated, the primary cell initiates the CBRA, and the uplink transmission carrier of the primary cell is used as the uplink transmission primary carrier; or If the uplink transmission carrier of the secondary cell is currently selected as the uplink transmission primary carrier, and the secondary cell only configures the D-SR resource, when the D-SR transmission fails in the secondary cell, the handover to the primary cell initiates the CBRA, and the primary The uplink transmission carrier of the cell is used as the uplink transmission primary carrier; or if the uplink transmission carrier of the secondary cell is currently selected as the uplink transmission primary carrier, and the transmission quality of the secondary cell does not meet the requirement, the uplink transmission carrier of the primary cell is used as the uplink transmission. Primary carrier and initiate RA.
  • the processing unit 504 when the processing unit 504 determines that the carrier of the D-SR needs to be the uplink transmission primary carrier by using the autonomously initiated D-SR process, the processing unit 504 further For: if the uplink transmission carrier of the secondary cell is currently selected as the uplink transmission primary carrier, and the secondary cell is not configured with the CBRA and the D-SR resource, when the uplink scheduling request needs to be initiated, the handover to the primary cell initiates the D-SR, and The uplink transmission carrier of the primary cell serves as an uplink transmission primary carrier.
  • the processing unit 504 is further used in one or any combination of the following steps: all configurations of the uplink transmission carrier are reserved. The resource is stopped; all the transmissions on the uplink transmission carrier are stopped; the HARQ buffer corresponding to the uplink transmission carrier is cleared, the uplink authorization information corresponding to the uplink transmission carrier is cleared, and the context related to the media access control MAC uplink is reset.
  • all the configuration resources of the uplink transmission carrier are reserved for the uplink transmission carrier to be selected, so that the uplink transmission carrier is selected again as the uplink transmission primary carrier, and the HARQ buffer corresponding to the uplink transmission carrier is cleared to release.
  • the storage space of the base station or the server clears the uplink grant information corresponding to the uplink transport carrier, so as to authorize other uplink transport carriers to serve as the uplink transport primary carrier, thereby avoiding the collision of the authorization information and exceeding the capability of the uplink transmission carrier of the UE.
  • the processing unit 504 is further configured to: if the uplink transmission carrier corresponding to the primary cell is currently selected as the uplink transmission primary carrier, when receiving the network side transmission When the command of the secondary cell is activated, only the downlink transmission resource of the secondary cell is activated; If the uplink transmission carrier corresponding to the secondary cell is currently selected as the uplink transmission primary carrier, when receiving the command to deactivate the secondary cell sent by the network side, only the uplink transmission resource of the secondary cell is deactivated, and the uplink corresponding to the primary cell is uplinked.
  • the transmission carrier is used as the uplink transmission primary carrier.
  • the base station when the base station informs the UE to activate or deactivate the uplink transmission resource or the downlink transmission resource of the corresponding cell, the base station may simultaneously activate or deactivate the uplink transmission resource or the downlink transmission resource of the corresponding cell, or may only activate or deactivate the corresponding Uplink transmission resources or downlink transmission resources of the cell.
  • the switching apparatus further includes: a reporting unit 506, connected to the obtaining unit 502, configured to acquire, by the network side, a set of cells used to provide services for the UE. Before the transmission resource is transmitted, the capability information supporting the uplink transmission primary carrier switching capability is reported to the network side.
  • the UE stops transmitting through the original uplink transmission carrier at time n or n+k.
  • the obtaining unit 502 may employ a receiver or a signal receiver
  • the processing unit 504 may use a central processing unit or a single-chip microcomputer
  • the reporting unit 506 may be a transmitter or a signal transmitter.
  • a base station provided by the embodiment of the present invention includes: an uplink transmission primary carrier switching control apparatus provided by an embodiment of the present invention.
  • an uplink transmission primary carrier switching control apparatus is added to the base station, and the uplink of the cell set configured for serving the UE by the user equipment UE is determined.
  • the transmission resource enables the uplink transmission primary carrier of the UE to be switched between a plurality of different cells in the set of cells configured for the UE to serve the UE, and enhances the transmission flexibility of the uplink transmission primary carrier of the user equipment.
  • the transmission power and the transmission requirement of the UE service are compared with the prior art, in which the macro cell is set as the primary cell, and the uplink transmission carrier of the macro cell is used for transmission, thereby avoiding the problem of large transmission power and large interference to other users.
  • the small cell is set as the primary cell, and the uplink transmission carrier of the small cell is used for transmission, thereby avoiding the problem of service transmission interruption caused by frequent handover of the UE by the UE and increasing the signaling load of the core network, and the prior art
  • the uplink transmission carrier and the downlink transmission carrier of the UE are simultaneously switched between cells, and the uplink transmission carrier only for the UE is switched between cells, and the transmission advantages of different cells are considered.
  • a user equipment provided by an embodiment of the present invention includes: an uplink transmission primary carrier switching apparatus according to an embodiment of the present invention.
  • the uplink transmission primary carrier switching device is added to the user equipment, and the uplink transmission resource of the UE is configured to be used by the user equipment UE to provide the uplink transmission resource for the UE.
  • the primary carrier can be switched between multiple different cells in the set of cells configured for the UE to serve the UE, which enhances the transmission flexibility of the uplink transmission primary carrier of the user equipment, and takes into account the transmission power and the transmission requirement of the UE service.
  • the macro cell is set as the primary cell, and the uplink transmission carrier of the macro cell is used for transmission, thereby avoiding the problem that the transmission power is large and the interference to other users is large, and the small cell is set to Compared with the uplink transmission carrier of the small cell, the primary cell avoids the problem of service transmission interruption caused by frequent handover of the UE by the UE and increases the signaling load of the core network.
  • the UE is used.
  • the uplink transmission carrier and the downlink transmission carrier simultaneously perform inter-cell handover, and are implemented only for the UE. Switch between transmission carrier cell, taking into account the advantages of different transmission cell.
  • the embodiment of the present application provides a base station, as shown in FIG. 6, the base station includes: a transceiver 600, a processor 602, and a memory 604; Also includes a bus interface 606 and a user interface 608;
  • the processor 602 is configured to read a program in the memory, and perform the following process: determining a transmission resource configured by the user equipment UE for serving the UE, where the configuration resource of the uplink transmission carrier of the multiple cells is included And transmitting, by the transceiver 600, the transmission resource of the cell set to the UE, to implement that the uplink transmission primary carrier of the UE switches between uplink transmission carriers corresponding to different cells;
  • the memory 604 is configured to store one or more executable programs, and is used to configure the processor 602.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 602 and various circuits of memory represented by memory 604.
  • the bus architecture 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.
  • Transceiver 600 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 602 is responsible for managing the bus architecture and general processing, and the memory 604 can store data used by the processor 602 in performing operations.
  • Bus interface 606 provides an interface.
  • the user interface 608 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the configuration resources of the uplink transmission carrier of each cell include the following resources: CBRA, D-SR, PUCCH.
  • the processor 602 is further configured to: notify, by the transceiver 600, the UE to switch the uplink transmission primary carrier.
  • the processor 602 is specifically configured to: notify, by using a layer 3, layer 2, or layer 1 command, the UE to select an uplink transmission carrier of a specific cell as an uplink transmission primary carrier; or, through layer 3, layer 2 Or the layer 1 command, notifying the UE of the subframe configuration information of the uplink transmission primary carrier, where the mapping between the cell corresponding to the uplink transmission primary carrier and the subframe is included; or, by deactivating the secondary cell that is the uplink transmission primary carrier of the UE
  • the configuration resource of the uplink transmission carrier indicates that the UE uses the uplink transmission carrier of the primary cell as the uplink transmission primary carrier.
  • the layer 3 command further includes the specific cell.
  • the configuration resource of the uplink transmission carrier when the processor 602 instructs the UE to select an uplink transmission carrier of a specific cell as an uplink transmission primary carrier by using a layer 3 command, the layer 3 command further includes the specific cell.
  • the configuration resource of the uplink transmission carrier when the processor 602 instructs the UE to select an uplink transmission carrier of a specific cell as an uplink transmission primary carrier by using a layer 3 command, the layer 3 command further includes the specific cell.
  • the number of cells that provide the UE with the configuration resources of the uplink transmission carrier is greater than or equal to the maximum number of cells corresponding to the uplink transmission carrier used by the UE when performing the uplink transmission.
  • the processor 602 is further configured to: before receiving, by the transceiver 600, the UE, the uplink supported by the UE, is determined by the transceiver 600, before determining the transmission resource configured for the UE to serve the UE.
  • the capability information of the primary carrier switching capability is transmitted; the processor 602 determines the transmission resource that is configured by the UE to serve the UE, and is specifically configured to determine, according to the capability information reported by the UE, the configured for the UE.
  • the UE provides a transmission resource of a set of cells served.
  • the user equipment UE is provided on the user side, and the user equipment UE is provided in the embodiment of the present disclosure.
  • the UE includes: a transceiver 700, a processor 702, and a memory. 704; further comprising a bus interface 706 and a user interface 708;
  • the processor 702 is configured to read a program in the memory 704, and perform the following process: acquiring, by the transceiver 700, a transmission resource of a cell set for serving the UE that is notified by the network side, where the uplink transmission carrier of the multiple cells is included
  • the configuration resource is connected to the transceiver 700, and is configured to switch the uplink transmission primary carrier to the uplink transmission corresponding to the new cell by using the configuration resource of the uplink transmission carrier of the new cell when determining that the uplink transmission primary carrier handover is required.
  • the memory 704 is configured to store one or more executable programs, and is used to configure the processor 702.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 702 and various circuits of memory represented by memory 704.
  • the bus architecture 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.
  • Transceiver 700 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 702 is responsible for managing the bus architecture and general processing, and the memory 704 can store data used by the processor 702 in performing operations.
  • Bus interface 706 provides an interface.
  • the user interface 708 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad. Display, speaker, microphone, joystick, etc.
  • the processor 702 determines that the uplink transmission primary carrier switching needs to be performed according to the notification of the handover uplink transmission primary carrier sent by the network side.
  • the processor 702 receives, by using one of the following manners, a notification of switching the uplink transmission primary carrier sent by the network side: receiving, by using the layer 3, layer 2, or layer 1 command, the selection of the specific cell sent by the network side.
  • the uplink transmission carrier is used as the notification of the uplink transmission primary carrier; or, by the layer 3, layer 2, or layer 1 command, receiving the notification of the subframe configuration information of the uplink transmission primary carrier sent by the network side, where the uplink transmission primary carrier corresponds to Corresponding relationship between the cell and the subframe; or a command sent by the network side to deactivate the configuration resource of the uplink transmission carrier of the secondary cell that is the uplink transmission primary carrier, as the uplink transmission carrier of the primary cell is used as the uplink transmission primary carrier Notice.
  • the processor 702 when the processor 702 receives the notification that the uplink transmission carrier of the specific cell sent by the network side is sent by the layer 3 command as the uplink transmission primary carrier, the processor 702 is further configured to: command from the layer 3 Obtaining, by the configuration resource of the uplink transmission carrier of the specific cell, the processor 702, by using the configuration resource of the uplink transmission carrier of the new cell, to switch the uplink transmission primary carrier to the uplink transmission carrier corresponding to the new cell, specifically: The configuration resource of the uplink transmission carrier of the specific cell acquired in the layer 3 command switches the uplink transmission primary carrier to the uplink transmission carrier corresponding to the specific cell.
  • the processor 702 determines, by using one of the following manners, that the uplink transmission primary carrier switching needs to be performed: determining, by using the autonomously initiated random access procedure, that the transmission carrier where the preamble sequence is located is used as the uplink transmission primary carrier; Determining that the carrier of the D-SR needs to be the uplink transmission primary carrier by using the autonomously initiated D-SR process; and determining that the uplink scheduling command for one of the multiple cells sent by the network side is received, The uplink transmission carrier is used as the uplink transmission primary carrier.
  • the processor 702 determines that the transmission carrier where the preamble sequence is to be used as the uplink transmission primary carrier by using the autonomously initiated random access procedure, the processor 702 is further configured to: if the secondary cell is currently selected The uplink transmission carrier is used as the uplink transmission primary carrier, and the secondary cell is not configured with the CBRA and the D-SR resource, and when the uplink scheduling request needs to be initiated, the primary cell is sent to the primary cell.
  • the CBRA is used, and the uplink transmission carrier of the primary cell is used as the uplink transmission primary carrier; or if the uplink transmission carrier of the secondary cell is currently selected as the uplink transmission primary carrier, and the secondary cell is only configured with the D-SR resource, when the secondary cell is configured in the secondary cell
  • the handover to the primary cell initiates the CBRA, and the uplink transmission carrier of the primary cell is used as the uplink transmission primary carrier; or if the uplink transmission carrier of the secondary cell is currently selected as the uplink transmission primary carrier, and the secondary cell
  • the uplink transmission carrier of the primary cell is used as the uplink transmission primary carrier, and the RA is initiated.
  • the processor 702 determines that the carrier where the D-SR is to be used as the uplink transmission primary carrier, the processor 702 is further configured to: if the uplink of the secondary cell is currently selected, The transmission carrier is used as the uplink transmission primary carrier, and the secondary cell is not configured with the CBRA and the D-SR resources.
  • the primary cell is initiated to initiate the D-SR, and the uplink transmission carrier of the primary cell is used as the uplink transmission master. Carrier.
  • the processor 702 is further configured to use one or any combination of the following functions: retain all configuration resources of the uplink transmission carrier; stop on the uplink transmission carrier. All the transmissions are performed; the HARQ buffer corresponding to the uplink transmission carrier is cleared, the uplink authorization information corresponding to the uplink transmission carrier is cleared, and the context related to the media access control MAC uplink is reset.
  • the processor 702 is further configured to: if the uplink transmission carrier corresponding to the primary cell is currently selected as the uplink transmission primary carrier, when the command for activating the secondary cell sent by the network side is received, only the The downlink transmission resource of the secondary cell; if the uplink transmission carrier corresponding to the secondary cell is currently selected as the uplink transmission primary carrier, when the command of deactivating the secondary cell sent by the network side is received, only the uplink transmission resource of the secondary cell is deactivated.
  • the uplink transmission carrier corresponding to the primary cell is used as the uplink transmission primary carrier.
  • the processor 702 is further configured to: after receiving the transmission resource of the cell set for serving the UE by the network side, report, by the transceiver 700, the uplink transmission primary carrier switching capability.
  • the capability information is given to the network side.
  • the embodiment of the present invention provides an uplink transmission primary carrier switching and a control method, apparatus, base station, and UE, and the uplink transmission resource of the UE is determined by determining an uplink transmission resource configured for the UE to serve the UE.
  • the primary carrier can be switched between multiple different cells in the set of cells configured for the UE to serve the UE, which enhances the transmission flexibility of the uplink transmission primary carrier of the user equipment, and takes into account the transmission power and the transmission requirement of the UE service. .
  • 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 and optical storage, etc.) including computer usable program code.
  • 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 a block or blocks of a flow or a flow and/or a block diagram of a flowchart Step.

Abstract

一种上行传输主载波切换及其控制方法、装置、基站及用户设备，使得UE的上行传输主载波在为UE提供服务的多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求。所述上行传输主载波切换控制方法，包括：确定为用户设备UE配置的用于为该UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源，用以实现该UE的上行传输主载波在不同的小区对应的上行传输载波之间进行切换；将所述小区集合的传输资源通知给该UE。

Description

上行传输主载波切换及其控制方法、装置、基站及UE
本申请要求在2014年8月29日提交中国专利局、申请号为201410438699.X、发明名称为“上行传输主载波切换及其控制方法、装置、基站及UE”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信技术领域，尤其涉及一种上行传输主载波切换及其控制方法、装置、基站及用户设备。
背景技术
随着长期演进(Long Term Evolution，LTE)网络覆盖范围的不断扩大以及LTE技术的不断发展，传统的宏小区覆盖方式在容量上会随着用户的数量增多以及带宽需求增大而难以满足需要，尤其是一些用户较为密集的地区，简单的宏覆盖无法满足用户流量需求，并且同构覆盖方式会出现盲区，影响用户的使用。因此，LTE引入了异构网络，使得组网的形态更加灵活，同时还提出了小小区(small cell)的概念，Small cell通常具有较小的覆盖范围和较低的发射功率，通过将small cell部署在距离用户更近的位置，例如室内，可以提升用户的数据速率。
先进的LTE(LTE Advanced，LTE-A)系统的峰值速率比LTE系统有很大的提高，要求达到下行1Gbps，上行500Mbps。同时，LTE-A系统要求和LTE系统有很好的兼容性。基于提高峰值速率、与LTE系统兼容以及充分利用频谱资源的需要，LTE-A系统引入了载波聚合(Carrier Aggregation，CA)技术。
载波聚合技术是指UE(User Equipment，用户设备，也称终端)可以同时聚合多个小区，多个小区可以同时为UE提供数据传输服务的机制。在载波聚合的系统中各个小区对应的载波在频域可以是连续或非连续的，为了和LTE 系统兼容，每个小区载波的最大带宽为20MHz，各成员载波间的带宽可以相同或不同。
载波聚合下，用户设备工作的小区分为一个主小区(Primary Cell，PCell)和若干个辅小区(Secondary Cell，SCell)，主小区承担了大部分控制和信令的工作，如发送对下行数据的A/N反馈、信道状态信息(Channel State Information，CSI)报告、信道探测参考信号(Sounding Reference Signal，SRS)、专用调度请求(Dedicated Scheduling Request，D-SR)传输，基于冲突的随机接入(Contention Based Random Access，CBRA)等，且物理上行链路控制信道(Physical Uplink Control CHannel，PUCCH)仅存在于PCell上；辅小区主要是作为资源，承担数据传输的功能，上行方向支持PUSCH(Physical Uplink Shared Channel，物理上行共享信道)和SRS传输。
当前，为UE配置的服务小区集合不能大于UE的载波聚合能力，即对于不支持上行载波聚合的UE来说，上行仅能在PCell上工作，即上行传输主载波仅能在PCell上。
在载波聚合的场景下，为了UE更好的节电，引入了激活/去激活机制。LTE-A系统中的激活/去激活是针对单个小区进行的，不区分上下行，具体实施方式有两种：显式和隐式。需要注意的是隐式方式只适用于去激活操作。
显式激活/去激活机制即基站通过发送激活或去激活媒体接入控制单元(MAC CE)控制UE聚合小区的激活状态。激活或去激活MAC CE格式如图1所示，激活或去激活MAC CE长度为8bits，分别为C7，C6，C5，C4，C3，C2，C1，R，每个比特对应一个小区，即：最后一位bit对应PCell，由于PCell永远不会被去激活，因此R比特位默认取0；其它比特分别对应一个SCell，即Ci对应编号为i的SCell。当Ci取“i＝1”时，表示激活该SCell，当Ci取“i＝0”时，表示去激活该SCell。
隐式去激活机制即通过引入一个去激活定时器来进行隐式去激活的方法。去激活定时器基于UE配置，基于小区维护。如果基站没有配置该定时器，则默认该定时器长度取值无穷大，即取值infinity。
去激活定时基于小区维护，去激活定时器维护方式如下：当UE接收到针对某个小区的激活信令时，启动/重启该小区对应的去激活定时器；在定时器运行期间，一旦用户设备收到针对该小区的上行或下行传输的调度信令后会重启该小区的去激活定时器。需要注意：如果是跨载波调度，那么需要同时启动调度和被调度小区的去激活定时器。其中，针对上行或者下行数据传输的调度信令通过物理层控制信道(PDCCH，Physical Control Channel)承载；去激活定时器超时，则用户设备去激活该小区。
综上所述，在异构网络部署的场景下，同时存在宏小区和小小区的基站。由于UE和宏小区发射点之间的距离通常大于UE和小小区网络发射点之间的距离，如果UE进行载波聚合传输，当配置宏小区为UE的PCell时，用户上行传输载波只能通过PCell进行传输，发射功率大且对小区内其他用户带来较大的干扰；当配置小小区作为UE的PCell时，由于小小区覆盖范围小，UE移动时需要频繁的进行小区切换，切换过程中业务传输会中断，对性能影响较大，同时还会增加核心网的信令负荷。而现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切换，无法在小区间仅针对UE的上行传输载波进行切换，因此无法兼顾不同小区的传输优势。
发明内容
本发明实施例提供了一种上行传输主载波切换及其控制方法、装置、基站及UE，使得UE的上行传输主载波在为UE提供服务的多个不同小区之间进行切换，增强了UE上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求。
本发明实施例提供的一种上行传输主载波切换控制方法，包括：确定为UE配置的用于为该UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源，用以实现该UE的上行传输主载波在不同的小区对应的上行传输载波之间进行切换；将所述小区集合的传输资源通知给该UE。
本发明实施例提供的上述上行传输主载波切换控制方法中，通过确定为UE配置的用于为该UE提供服务的小区集合的上行传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求，与现有技术中将宏小区设置为主小区，使用宏小区的上行传输载波进行传输相比，避免了发射功率大、对其他用户干扰大的问题，与现有技术中将小小区设置为主小区，使用小小区的上行传输载波进行传输相比，避免了由于UE移动频繁切换小区导致的业务传输中断以及增加核心网信令负荷的问题，与现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切换相比，实现仅针对UE的上行传输载波在小区间进行切换，兼顾不同小区的传输优势。
在一种可能的实施方式中，本发明实施例提供的上述切换控制方法中，每个小区的上行传输载波的配置资源均包括以下资源：CBRA、D-SR、PUCCH。
在一种可能的实施方式中，本发明实施例提供的上述切换控制方法中，该方法还包括：通知所述UE切换上行传输主载波。
本发明实施例提供的上述上行传输主载波切换控制方法中，通过基站通知UE切换上行传输主载波，在为UE提供服务的小区多于两个时，可以直接在多个小区中确定所要选择的小区，提高了切换小区的准确性。
在一种可能的实施方式中，本发明实施例提供的上述切换控制方法中，通知所述UE切换上行传输主载波，包括：通过层3、层2或层1命令，通知所述UE选择特定小区的上行传输载波作为上行传输主载波；或者，通过层3、层2或层1命令，通知所述UE上行传输主载波的子帧配置信息，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，通过去激活当前作为所述UE的上行传输主载波的辅小区的上行传输载波的配置资源，指示该UE将主小区的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的上述切换控制方法中， 当通过层3命令通知所述UE选择特定小区的上行传输载波作为上行传输主载波时，所述层3命令中还包括该特定小区的上行传输载波的配置资源。
在一种可能的实施方式中，本发明实施例提供的上述切换控制方法中，为所述UE提供上行传输载波的配置资源的小区个数，大于或等于所述UE实际进行上行传输时所采用的上行传输载波所对应的小区个数的最大值。
在一种可能的实施方式中，本发明实施例提供的上述切换控制方法中，确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源之前，该方法还包括：接收所述UE上报的该UE支持上行传输主载波切换能力的能力信息；确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源，具体为：基于所述UE上报的所述能力信息，确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源。
本发明实施例提供的一种上行传输主载波切换方法，包括：用户设备UE获取网络侧通知的用于为该UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源；当该UE确定需要进行上行传输主载波切换时，该UE通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波。
本发明实施例提供的上述上行传输主载波切换方法中，通过确定为用户设备UE配置的用于为该UE提供服务的小区集合的上行传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求，与现有技术中将宏小区设置为主小区，使用宏小区的上行传输载波进行传输相比，避免了发射功率大、对其他用户干扰大的问题，与现有技术中将小小区设置为主小区，使用小小区的上行传输载波进行传输相比，避免了由于UE移动频繁切换小区导致的业务传输中断以及增加核心网信令负荷的问题，与现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切换相比，实现仅针对UE的上行传输载波在小区间进行切换，兼顾不同小区的传输优势。
在一种可能的实施方式中，本发明实施例提供的上述切换方法中，所述UE根据网络侧发送的切换上行传输主载波的通知，确定需要进行上行传输主载波切换。
本发明实施例提供的上述上行传输主载波切换控制方法中，通过网络侧通知UE切换上行传输主载波，在为UE提供服务的小区多于两个时，可以直接在多个小区中确定所要选择的小区，提高了切换小区的准确性。
在一种可能的实施方式中，本发明实施例提供的上述切换方法中，所述UE通过如下方式之一接收网络侧发送的切换上行传输主载波的通知：通过层3、层2或层1命令，接收网络侧发送的选择特定小区的上行传输载波作为上行传输主载波的通知；或者，通过层3、层2或层1命令，接收网络侧发送的上行传输主载波的子帧配置信息的通知，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，将网络侧发送的去激活当前作为所述UE的上行传输主载波的辅小区的上行传输载波的配置资源的命令，作为该UE将主小区的上行传输载波作为上行传输主载波的通知。
在一种可能的实施方式中，本发明实施例提供的上述切换方法中，当所述UE通过层3命令，接收网络侧发送的选择特定小区的上行传输载波作为上行传输主载波的通知时，该方法还包括：所述UE从所述层3命令中获取该特定小区的上行传输载波的配置资源；所述UE通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波，具体为：所述UE通过从所述层3命令中获取的该特定小区的上行传输载波的配置资源，将上行传输主载波切换为该特定小区对应的上行传输载波。
在一种可能的实施方式中，本发明实施例提供的上述切换方法中，所述UE通过如下方式之一确定需要进行上行传输主载波切换：所述UE通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波；所述UE通过自主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波；所述UE当接收到网络侧发送的针对所述多个小区中的一个小区的上行调度命令时，该UE确定需要将该小区的上行传输载波作为上行传 输主载波。
在一种可能的实施方式中，本发明实施例提供的上述切换方法中，当所述UE通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波时，该方法还包括：若所述UE当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当该UE需要发起上行调度请求时，该UE切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，若所述UE当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区仅配置D-SR资源，当该UE在该辅小区出现D-SR传输失败时，该UE切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，若所述UE当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区的传输质量不满足要求时，该UE将主小区的上行传输载波作为上行传输主载波，并发起RA。
在一种可能的实施方式中，本发明实施例提供的上述切换方法中，当所述UE通过自主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波时，该方法还包括：若所述UE当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当该UE需要发起上行调度请求时，该UE切换到主小区发起D-SR，并将主小区的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的上述切换方法中，针对被去选择的上行传输载波，该方法还包括以下步骤之一或任意组合：所述UE保留该上行传输载波的所有配置资源；所述UE停止在该上行传输载波上的所有传输；所述UE清除该上行传输载波对应的HARQ(Hybrid Automatic Repeat Request，混合自动重传请求)缓存，清除该上行传输载波对应的上行授权信息；所述UE将媒体接入控制MAC上行相关的上下文复位。
在一种可能的实施方式中，本发明实施例提供的上述切换方法中，该方法还包括：若所述UE当前选择主小区对应的上行传输载波为上行传输主载波，则所述UE当接收到网络侧发送的激活辅小区的命令时，所述UE仅激活 该辅小区的下行传输资源；若所述UE当前选择辅小区对应的上行传输载波为上行传输主载波，则所述UE当接收到网络侧发送的去激活辅小区的命令时，所述UE仅去激活该辅小区的上行传输资源，并将主小区对应的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的上述切换方法中，所述UE获取网络侧通知的用于为该UE提供服务的小区集合的传输资源之前，该方法还包括：所述UE上报该UE支持上行传输主载波切换能力的能力信息给网络侧。
在一种可能的实施方式中，本发明实施例提供的上述切换方法中，若所述UE在n时刻确定需要进行上行传输主载波切换，则在n+k时刻新的上行传输主载波生效，其中k>＝0；所述UE在n时刻或n+k时刻停止原上行传输主载波的传输。
本发明实施例提供的一种上行传输主载波切换控制装置，包括：资源确定单元，用于确定为用户设备UE配置的用于为该UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源，用以实现该UE的上行传输主载波在不同的小区对应的上行传输载波之间进行切换；发送单元，连接至所述资源确定单元，用于将所述小区集合的传输资源通知给该UE。
本发明实施例提供的上述上行传输主载波切换控制装置中，通过确定为用户设备UE配置的用于为该UE提供服务的小区集合的上行传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求，与现有技术中将宏小区设置为主小区，使用宏小区的上行传输载波进行传输相比，避免了发射功率大、对其他用户干扰大的问题，与现有技术中将小小区设置为主小区，使用小小区的上行传输载波进行传输相比，避免了由于UE移动频繁切换小区导致的业务传输中断以及增加核心网信令负荷的问题，与现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切换相比，实现仅针对UE 的上行传输载波在小区间进行切换，兼顾不同小区的传输优势。
在一种可能的实施方式中，本发明实施例提供的上述切换控制装置中，每个小区的上行传输载波的配置资源均包括以下资源：CBRA、D-SR、PUCCH。
在一种可能的实施方式中，本发明实施例提供的上述切换控制装置中，所述发送单元还用于：通知所述UE切换上行传输主载波。
本发明实施例提供的上述上行传输主载波切换控制方法中，通过基站通知UE切换上行传输主载波，在为UE提供服务的小区多于两个时，可以直接在多个小区中确定所要选择的小区，提高了切换小区的准确性。
在一种可能的实施方式中，本发明实施例提供的上述切换控制装置中，所述发送单元通知所述UE切换上行传输主载波时，具体用于：通过层3、层2或层1命令，通知所述UE选择特定小区的上行传输载波作为上行传输主载波；或者，通过层3、层2或层1命令，通知所述UE上行传输主载波的子帧配置信息，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，通过去激活当前作为所述UE的上行传输主载波的辅小区的上行传输载波的配置资源，指示该UE将主小区的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的上述切换控制装置中，所述发送单元通过层3命令通知所述UE选择特定小区的上行传输载波作为上行传输主载波时，所述层3命令中还包括该特定小区的上行传输载波的配置资源。
在一种可能的实施方式中，本发明实施例提供的上述切换控制装置中，为所述UE提供上行传输载波的配置资源的小区个数，大于或等于所述UE实际进行上行传输时所采用的上行传输载波所对应的小区个数的最大值。
在一种可能的实施方式中，本发明实施例提供的上述切换控制装置中，还包括：接收单元，连接至所述资源确定单元，用于在确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源之前，接收所述UE上报的该UE支持上行传输主载波切换能力的能力信息；所述资源确定单元确定为所述 UE配置的用于为该UE提供服务的小区集合的传输资源，具体为：基于所述UE上报的所述能力信息，确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源。
本发明实施例提供的一种上行传输主载波切换装置，包括：获取单元，用于获取网络侧通知的用于为UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源；处理单元，连接至所述获取单元，用于当确定需要进行上行传输主载波切换时，通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波。
本发明实施例提供的上述上行传输主载波切换装置中，通过确定为用户设备UE配置的用于为该UE提供服务的小区集合的上行传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求，与现有技术中将宏小区设置为主小区，使用宏小区的上行传输载波进行传输相比，避免了发射功率大、对其他用户干扰大的问题，与现有技术中将小小区设置为主小区，使用小小区的上行传输载波进行传输相比，避免了由于UE移动频繁切换小区导致的业务传输中断以及增加核心网信令负荷的问题，与现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切换相比，实现仅针对UE的上行传输载波在小区间进行切换，兼顾不同小区的传输优势。
在一种可能的实施方式中，本发明实施例提供的上述切换装置中，所述处理单元根据网络侧发送的切换上行传输主载波的通知，确定需要进行上行传输主载波切换。
本发明实施例提供的上述上行传输主载波切换控制方法中，通过网络侧通知UE切换上行传输主载波，在为UE提供服务的小区多于两个时，可以直接在多个小区中确定所要选择的小区，提高了切换小区的准确性。
在一种可能的实施方式中，本发明实施例提供的上述切换装置中，所述处理单元通过如下方式之一接收网络侧发送的切换上行传输主载波的通知： 通过层3、层2或层1命令，接收网络侧发送的选择特定小区的上行传输载波作为上行传输主载波的通知；或者，通过层3、层2或层1命令，接收网络侧发送的上行传输主载波的子帧配置信息的通知，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，将网络侧发送的去激活当前作为上行传输主载波的辅小区的上行传输载波的配置资源的命令，作为将主小区的上行传输载波作为上行传输主载波的通知。
在一种可能的实施方式中，本发明实施例提供的上述切换装置中，当所述处理单元接收到网络侧通过层3命令发送的选择特定小区的上行传输载波作为上行传输主载波的通知时，所述获取单元还用于：从所述层3命令中获取该特定小区的上行传输载波的配置资源；所述处理单元通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波，具体为：通过从所述层3命令中获取的该特定小区的上行传输载波的配置资源，将上行传输主载波切换为该特定小区对应的上行传输载波。
在一种可能的实施方式中，本发明实施例提供的上述切换装置中，所述处理单元通过如下方式之一确定需要进行上行传输主载波切换：通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波；通过自主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波；当接收到网络侧发送的针对所述多个小区中的一个小区的上行调度命令时，确定需要将该小区的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的上述切换装置中，所述处理单元通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波时，所述处理单元还用于：若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当需要发起上行调度请求时，切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区仅配置D-SR资源，当在该辅小区出现D-SR传输失败时，切换到主小区发起CBRA，并将主小区的上行传输载波作为上行 传输主载波；或者，若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区的传输质量不满足要求时，将主小区的上行传输载波作为上行传输主载波，并发起RA。
在一种可能的实施方式中，本发明实施例提供的上述切换装置中，所述处理单元通过自主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波时，所述处理单元还用于：若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当需要发起上行调度请求时，切换到主小区发起D-SR，并将主小区的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的上述切换装置中，针对被去选择的上行传输载波，所述处理单元还用于以下步骤之一或任意组合：保留该上行传输载波的所有配置资源；停止在该上行传输载波上的所有传输；清除该上行传输载波对应的HARQ缓存，清除该上行传输载波对应的上行授权信息；将媒体接入控制MAC上行相关的上下文复位。
在一种可能的实施方式中，本发明实施例提供的上述切换装置中，所述处理单元还用于：若当前选择主小区对应的上行传输载波为上行传输主载波，则当接收到网络侧发送的激活辅小区的命令时，仅激活该辅小区的下行传输资源；若当前选择辅小区对应的上行传输载波为上行传输主载波，则当接收到网络侧发送的去激活辅小区的命令时，仅去激活该辅小区的上行传输资源，并将主小区对应的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的上述切换装置中，还包括：上报单元，连接至所述获取单元，用于在获取网络侧通知的用于为该UE提供服务的小区集合的传输资源之前，上报支持上行传输主载波切换能力的能力信息给网络侧。
在一种可能的实施方式中，本发明实施例提供的上述切换装置中，所述处理单元若在n时刻确定需要进行上行传输主载波切换，则在n+k时刻新的上行传输主载波生效，其中k>＝0；在n时刻或n+k时刻停止原上行传输主载 波的传输。
本发明实施例提供的一种基站，包括：本发明实施例提供的上述上行传输主载波切换控制装置。
本发明实施例提供的上述基站中，在基站中加入上行传输主载波切换控制装置，通过确定为用户设备UE配置的用于为该UE提供服务的小区集合的上行传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求，与现有技术中将宏小区设置为主小区，使用宏小区的上行传输载波进行传输相比，避免了发射功率大、对其他用户干扰大的问题，与现有技术中将小小区设置为主小区，使用小小区的上行传输载波进行传输相比，避免了由于UE移动频繁切换小区导致的业务传输中断以及增加核心网信令负荷的问题，与现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切换相比，实现仅针对UE的上行传输载波在小区间进行切换，兼顾不同小区的传输优势。
本发明实施例提供的一种用户设备，包括：本发明实施例提供的上述上行传输主载波切换装置。
本发明实施例提供的上述用户设备中，在用户设备中加入上行传输主载波切换装置，通过确定为用户设备UE配置的用于为该UE提供服务的小区集合的上行传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求，与现有技术中将宏小区设置为主小区，使用宏小区的上行传输载波进行传输相比，避免了发射功率大、对其他用户干扰大的问题，与现有技术中将小小区设置为主小区，使用小小区的上行传输载波进行传输相比，避免了由于UE移动频繁切换小区导致的业务传输中断以及增加核心网信令负荷的问题，与现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切 换相比，实现仅针对UE的上行传输载波在小区间进行切换，兼顾不同小区的传输优势。
附图说明
图1为现有技术中媒体接入控制单元格式的结构示意图；
图2为本发明实施例提供的上行传输主载波切换控制方法的流程示意图；
图3为本发明实施例提供的上行传输主载波切换方法的流程示意图；
图4为本发明实施例提供的上行传输主载波切换控制装置的结构示意图；
图5为本发明实施例提供的上行传输主载波切换装置的结构示意图；
图6为本发明实施例提供的一种基站的结构示意图；
图7为本发明实施例提供的一种用户设备的结构示意图。
具体实施方式
下面结合附图，对本发明实施例提供的切换控制、切换方法、装置、基站及UE的具体实施方式进行详细地说明。
在基站侧，本发明实施例提供的一种上行传输主载波切换控制方法，如图2所示，包括：
步骤202，确定为UE配置的用于为该UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源，用以实现该UE的上行传输主载波在不同的小区对应的上行传输载波之间进行切换；
步骤204，将小区集合的传输资源通知给该UE。
本发明实施例中，将UE当前用来传输上行数据的上行传输载波称为上行传输主载波。
本发明实施例提供的上行传输主载波切换控制方法中，通过确定为UE配置的用于为该UE提供服务的小区集合的上行传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功 率与UE业务的传输需求，与现有技术中将宏小区设置为主小区，使用宏小区的上行传输载波进行传输相比，避免了发射功率大、对其他用户干扰大的问题，与现有技术中将小小区设置为主小区，使用小小区的上行传输载波进行传输相比，避免了由于UE移动频繁切换小区导致的业务传输中断以及增加核心网信令负荷的问题，与现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切换相比，实现仅针对UE的上行传输载波在小区间进行切换，兼顾不同小区的传输优势。
在具体实施时，UE的非接入层(Non-Access Stratum，NAS)移动性，安全性、移动性均和PCell绑定，不随上行传输主载波在不同小区之间的切换而变化。
当然，基站在确定为UE配置的用于为该UE提供服务的小区集合的传输资源时，该传输资源包括UE的上行传输资源和下行载波资源，也即基站可以同时配置小区集合中多个小区的上行传输资源和下行传输资源，在配置完成后一起通知给UE，以提高资源配置效率。
在具体实施时，当UE仅支持下行载波聚合，或者UE具有单载波上行发射能力时，为UE提供服务的小区集合中仍可以包含多个小区的上行传输载波，但是为了不超过UE的上行传输载波能力，多个小区的上行传输载波在同一时刻只能为由一个小区的上行传输载波作为该UE的上行传输主载波，当然，对于支持上行载波聚合的UE来说，在保证UE上行传输载波能力的同时，可以由多个小区的上行传输载波的聚合作为UE的上行传输主载波。
下面结合具体的实施例说明UE的上行传输主载波在为UE配置的用于为该UE提供服务的小区集合中进行切换的情景，例如：UE仅支持下行传输载波聚合，为UE配置的用于为该UE提供服务的小区集合中包括一个宏小区和一个小小区，该宏小区作为主小区，小小区作为辅小区，由于宏小区相对于小小区覆盖范围较大，因此，上行传输主载波默认选择宏小区的上行传输载波。在用户移动频繁时，由宏小区的上行传输载波作为上行传输主载波，避免通过小小区的上行传输载波进行传输时由于用户移动而频繁切换导致的业 务传输中断以及增加核心网信令负荷的问题；而当用户在小小区驻留时间较长时，为了降低UE上行传输载波的发射功率以及对其他UE的干扰，可以切换至通过小小区的上行传输载波进行传输，也即将小小区的上行传输载波作为UE的上行传输主载波。
在具体的实施例中，为UE提供服务的小区集合中的多个小区，例如：一个主小区和一个辅小区，默认选择主小区的上行传输载波和下行传输载波进行UE与基站之间的数据传输，随着UE的移动，如果通过基站定位或UE通过测量，得出辅小区的上行传输载波传输质量好于主小区的上行传输载波传输质量，但主小区的下行传输载波传输质量好于辅小区的下行传输载波传输质量，则可以通过将上行传输主载波切换至辅小区，而下行传输载波仍然使用主小区的下行传输载波，与现有技术中上行传输载波和下行传输载波同时切换至其他小区相比，使用不同小区的上行传输载波和下行传输载波，兼顾不同小区的传输优势，提高数据传输效率。
在一种可能的实施方式中，本发明实施例提供的切换控制方法中，每个小区的上行传输载波的配置资源均包括以下资源：CBRA、D-SR、PUCCH。
在具体实施时，虽然上行传输载波的配置资源在为UE提供服务的小区集合中的多个小区中均有配置，但对于某些上行传输主载波资源仅可以在上行传输主载波对应的小区中可以使用，例如：基站为UE在多个小区上配置PUCCH资源，仅在上行传输主载波对应的小区的上行传输资源中的PUCCH资源可以使用；和/或基站为UE在多个小区上配置CBRA相关资源，仅在上行传输主载波对应小区中的上行传输资源中的CBRA资源可以使用；和/或对于上行单载波传输的UE来说，在选择任一小区的上行传输载波作为上行传输主载波时，UE自动停止其他小区中上行传输载波，包括PUSCH和/或SRS。值得注意的是，UE选择任一小区的上行传输载波作为上行传输主载波时，该小区对应的系统信息块2(SIB2)链接(linked)的下行传输载波必须处于激活状态。
作为较为具体的实施例，UE仅支持下行传输载波聚合或上行单载波传 输，为UE配置的用于为该UE提供服务的小区集合中包括一个宏小区和一个小小区，该宏小区作为主小区，小小区作为辅小区，宏小区和小小区中均配置上行传输主载波资源，包括：CBRA、D-SR、PUCCH资源，UE的上行传输载波和下行传输载波默认均在宏小区上进行传输，在接收到基站通知切换到通过小小区的上行传输载波进行传输时，小小区中配置的CBRA、D-SR、PUCCH资源可以使用，宏小区中配置的CBRA、D-SR、PUCCH资源不可以使用，同时停止通过宏小区的上行传输载波进行传输，包括：PUSCH和/或SRS，同时还必须激活小小区的下行传输载波。
在一种可能的实施方式中，本发明实施例提供的切换控制方法中，该方法还包括：通知UE切换上行传输主载波。
在具体实施时，通过基站通知UE切换上行传输主载波，在为UE提供服务的小区多于两个时，可以直接在多个小区中确定所要选择的小区，提高了切换小区的准确性，例如：为UE提供服务的小区集合中包括：一个主小区和七个辅小区，基站通过发送通知可以直接指定八个小区中上行传输主载波所对应的小区。具体来说，本发明实施例提供的切换控制方法中，通知UE切换上行传输主载波，包括以下几种方式，基站在通知UE时可以单独使用其中一种方式，也可以多种方式结合使用。
方式一：通过层3、层2或层1命令，通知UE选择特定小区的上行传输载波作为上行传输主载波。
作为较为具体的实施例，例如：UE仅支持下行载波聚合，上行仅支持单载波传输，且UE具备上行传输主载波切换的能力，也即为UE提供服务的小区集合中可以包括两个小区，但同一时刻上行只能通过其中一个小区配置的上行传输载波进行传输。
通过层3、层2或层1命令，通知UE选择特定小区的上行传输载波作为上行传输主载波的具体步骤包括：
步骤一、为UE提供服务的小区集合中包括一个PCell和一个SCell，PCell和SCell均为该UE提供上行传输资源和下行传输资源，例如，基站为UE在 PCell和SCell上均配置D-SR、PUCCH和SRS等上行传输资源；
步骤二、UE接收到基站通知的PCell和SCell的上行传输资源和下行传输资源配置后，默认选择PCell的上行传输载波作为上行传输主载波；
步骤三、基站通过定位或UE测量，获取小区的传输信号质量，当确定UE在SCell上的传输信号质量较好时，则基站通过发送层3、层2或层1(L3/L2/L1)命令，通知UE激活SCell下行传输载波，UE开始通过SCell的下行传输载波进行传输；
步骤四、基站确定UE在SCell驻留时间相对较长，决定将UE上行传输载波也切换到SCell，则基站通过发送L3/L2/L1命令给UE，通知UE将上行传输主载波切换到SCell；
步骤五、UE在n时刻接收到将上行传输主载波切换到SCell的命令后，n+k时刻完成上行传输主载波切换过程，即n+k时刻开始通过SCell的上行传输载波进行传输，停止通过PCell的上行传输载波进行传输，基站在n+k时刻在SCell上对UE进行上行调度；
步骤六、当UE停止通过PCell的上行传输载波进行传输时，可以同时清除PCell上的HARQ缓存数据和PCell对应的上行传输主载波授权信息；
步骤七、当UE开始通过SCell的上行传输载波进行传输时，PCell和SCell下行传输载波对应的上行反馈都在SCell的上行传输载波上进行传输，当UE有上行业务传输时，则通过SCell的D-SR发起请求。
作为另一较为具体的实施例，例如：UE仅支持下行载波聚合，上行仅支持单载波传输，且UE具备上行传输主载波切换的能力，也即为UE提供服务的小区集合中可以包括两个小区，但同一时刻上行只能通过其中一个小区配置的上行传输载波进行传输。
通过层3、层2或层1命令，通知UE选择特定小区的上行传输载波作为上行传输主载波的具体步骤包括：
步骤一、基站选择SCell的上行传输载波作为UE的上行传输主载波；
步骤二、基站发送L3/L2/L1命令通知UE将上行传输主载波切换到PCell；
步骤三、UE停止通过SCell的上行传输载波进行传输，切换至PCell的上行传输载波进行传输；同时在PCell上进行SCell和PCell下行传输载波的反馈，以及CSI/SRS传输；当UE有上行业务传输时，在PCell上发起D-SR过程。
方式二、通过层3、层2或层1命令，通知UE上行传输主载波的子帧配置信息，其中包括上行传输主载波所对应的小区与子帧的对应关系。
作为较为具体的实施例，例如：UE仅支持下行载波聚合，上行仅支持单载波传输，且UE具备上行传输主载波切换的能力，也即为UE提供服务的小区集合中可以包括两个小区，但同一时刻上行只能通过其中一个小区配置的上行传输载波进行传输。
通过层3、层2或层1命令，通知UE上行传输主载波的子帧配置信息的具体步骤包括：
步骤一、基站为UE的上行传输主载波配置一个子帧配置信息，该子帧配置信息包括上行传输主载波所对应的小区与子帧的对应关系，例如：以20个子帧为周期，其中前2个子帧将PCell的上行传输载波作为UE的上行传输主载波，k个子帧切换上行传输主载波对应的小区，其余18-k个子帧将SCell的上行传输载波作为UE的上行传输主载波；
步骤二、UE收到基站通知的子帧配置信息后，根据子帧配置信息指示对应cell的上行传输载波作为上行传输主载波；
步骤三、对SCell和PCell下行传输载波的反馈，以及CSI/SRS的传输，UE可以都发送给当前选择的上行传输主载波对应的小区。
方式三、通过去激活当前作为UE的上行传输主载波的辅小区的上行传输载波的配置资源，指示该UE将主小区的上行传输载波作为上行传输主载波。
作为较为具体的实施例，例如：UE仅支持下行载波聚合，上行仅支持单载波传输，且UE具备上行传输主载波切换的能力，也即为UE提供服务的小区集合中可以包括两个小区，但同一时刻上行只能通过其中一个小区配置的上行传输载波进行传输。
通过去激活当前作为UE的上行传输主载波的辅小区的上行传输载波的配置资源，指示该UE将主小区的上行传输载波作为上行传输主载波的具体步骤包括：
步骤一、基站选择SCell的上行传输载波作为UE的上行传输主载波；
步骤二、基站发送去激活当前作为UE上行传输主载波的SCell的上行传输载波的配置资源，将上行传输主载波切换到PCell的上行传输载波；
步骤三、UE在接收到去激活SCell上行传输主载波的配置资源的命令后，延时k时刻，UE停止通过SCell的上行传输载波进行传输，切换至通过PCell的上行传输载波进行传输；同时在PCell上进行SCell和PCell下行传输载波的反馈，以及CSI/SRS传输；当UE有上行业务传输时，在PCell上发起D-SR过程。
在一种可能的实施方式中，本发明实施例提供的切换控制方法中，当通过层3命令通知UE选择特定小区的上行传输载波作为上行传输主载波时，层3命令中还包括该特定小区的上行传输载波的配置资源。
在具体实施时，基站通过层3命令(L3 command)通知UE选择特定小区的上行传输载波作为上行传输主载波时，同时可以携带该特定小区的上行传输载波对应的配置资源，较佳地，该配置资源包括：D-SR、SRS、CSI、PUCCH和/或SCell RA等，因此，当任一小区的上行传输载波作为上行传输主载波被去选择时候，该小区中的配置资源可以保留，也可以自行释放。
在一种可能的实施方式中，本发明实施例提供的切换控制方法中，为UE提供上行传输载波的配置资源的小区个数，大于或等于UE实际进行上行传输时所采用的上行传输载波所对应的小区个数的最大值。
在具体实施时，为UE提供上行传输载波的配置资源的小区个数大于或等于UE实际进行上行传输时所采用的上行传输载波所对应的小区个数的最大值，以便UE的上行传输主载波在多个不同小区之间进行切换。例如：为UE提供上行传输载波的配置资源的小区个数为三个，包括：一个主小区和两个辅小区，但UE上行仅支持单载波传输，即UE实际进行上行传输时所采用的 上行传输载波所对应的小区个数的最大值为一个，则同一时刻只能由三个小区中的一个小区的上行传输载波作为该UE的上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的切换控制方法中，确定为UE配置的用于为该UE提供服务的小区集合的传输资源之前，该方法还包括：接收UE上报的该UE支持上行传输主载波切换能力的能力信息；确定为UE配置的用于为该UE提供服务的小区集合的传输资源，具体为：基于UE上报的能力信息，确定为UE配置的用于为该UE提供服务的小区集合的传输资源。
当然，仅作为一种较佳的实施方式，本发明实施例中只有在UE向基站上报其支持上行传输主载波切换能力时，基站才可以根据UE的能力和自身的策略开启UE上行传输主载波切换的相关功能以及配置。若UE不向基站上报其支持上行传输主载波切换能力，基站也可以为该UE开启上行传输主载波切换的相关功能以及配置。
在用户设备侧，本发明实施例提供的一种上行传输主载波切换方法，如图3所示，包括：
步骤302，UE获取网络侧通知的用于为该UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源；
步骤304，当该UE确定需要进行上行传输主载波切换时，该UE通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波。
本发明实施例提供的上行传输主载波切换方法中，通过确定为UE配置的用于为该UE提供服务的小区集合的上行传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求，与现有技术中将宏小区设置为主小区，使用宏小区的上行传输载波进行传输相比，避免了发射功率大、对其他用户干扰大的问题，与现有技术中将小小区设置为主小区，使用小小区的上行传输载波进行传输 相比，避免了由于UE移动频繁切换小区导致的业务传输中断以及增加核心网信令负荷的问题，与现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切换相比，实现仅针对UE的上行传输载波在小区间进行切换，兼顾不同小区的传输优势。
在一种可能的实施方式中，本发明实施例提供的切换方法中，UE根据网络侧发送的切换上行传输主载波的通知，确定需要进行上行传输主载波切换。
在本发明实施例提供的切换方法中，通过基站通知UE切换上行传输主载波，在为UE提供服务的小区多于两个时，可以直接在多个小区中确定所要选择的小区，提高了切换小区的准确性。
在一种可能的实施方式中，本发明实施例提供的切换方法中，UE通过如下方式之一接收网络侧发送的切换上行传输主载波的通知：通过层3、层2或层1命令，接收网络侧发送的选择特定小区的上行传输载波作为上行传输主载波的通知；或者，通过层3、层2或层1命令，接收网络侧发送的上行传输主载波的子帧配置信息的通知，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，将网络侧发送的去激活当前作为UE的上行传输主载波的辅小区的上行传输载波的配置资源的命令，作为该UE将主小区的上行传输载波作为上行传输主载波的通知。
在一种可能的实施方式中，本发明实施例提供的切换方法中，当UE通过层3命令，接收网络侧发送的选择特定小区的上行传输载波作为上行传输主载波的通知时，该方法还包括：UE从层3命令中获取该特定小区的上行传输载波的配置资源；UE通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波，具体为：UE通过从层3命令中获取的该特定小区的上行传输载波的配置资源，将上行传输主载波切换为该特定小区对应的上行传输载波。
在一种可能的实施方式中，本发明实施例提供的切换方法中，UE通过如下方式之一确定需要进行上行传输主载波切换：UE通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波；UE通过自 主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波；UE当接收到网络侧发送的针对多个小区中的一个小区的上行调度命令时，该UE确定需要将该小区的上行传输载波作为上行传输主载波。
在本发明实施例提供的切换方法中，UE不但可以通过接收基站发送的命令切换上行传输主载波对应的小区，还可以通过多个小区的上行传输资源在多个小区中确定需要将对应小区的上行传输载波作为上行传输主载波，UE根据多个小区的上行传输资源进行选择，对UE的上行传输业务具有较好的适应性，同时可以根据业务需要选择不同的小区，灵活性更强。
当然，在具体的实施例中，UE上行传输主载波在为UE提供服务的多个小区之间切换可能根据基站的通知进行切换，也可能UE根据多个小区的上行传输资源进行选择切换，也可能相互结合使用。
下面结合具体的实施例说明UE当接收到网络侧发送的针对多个小区中的一个小区的上行调度命令时，该UE将该小区的上行传输载波作为上行传输主载波。
作为较为具体的实施例，为上行仅支持单载波传输的UE提供服务的小区集合中包括两个小区：PCell和SCell，Pcell和Scell中均配置上行传输资源和下行传输资源，且UE具备上行传输主载波切换的能力，并且仅激活SCell下行传输载波；基站调度UE通过SCell的上行传输载波进行传输，则在进行对应的PUSCH传输时刻，UE激活该SCell上行传输载波，去激活PCell上行传输载波。同理，基站可以用类似的方式激活PCell上行。
在一种可能的实施方式中，本发明实施例提供的切换方法中，UE通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波具体包括以下几种实施例。
实施例一、若该UE当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当该UE需要发起上行调度请求时，该UE切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波。
具体来说，为上行仅支持单载波传输的UE提供服务的小区集合中包括两个小区：PCell和SCell，Pcell和Scell中均配置上行传输资源和下行传输资源，且UE具备上行传输主载波切换的能力，但是基站在SCell未配置D-SR、CBRA资源，或者SCell上不允许发送D-SR或CBRA，在选择SCell的上行传输载波作为上行传输主载波时，当UE要发送上行调度请求时，UE自动选择PCell的上行传输载波作为上行传输主载波，进行D-SR或CBRA传输。
实施例二、若该UE当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区仅配置D-SR资源，当该UE在该辅小区出现D-SR传输失败时，该UE切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波。
具体来说，为上行仅支持单载波传输的UE提供服务的小区集合中包括两个小区：PCell和SCell，Pcell和Scell中均配置上行传输资源和下行传输资源，且UE具备上行传输主载波切换的能力，在选择SCell的上行传输载波作为上行传输主载波时，UE在SCell上发生无线链路失败；当UE检测到SCell无线链路失败时，则UE自动选择PCell的上行传输载波作为上行传输主载波，进行D-SR或CBRA传输；在基站为UE分配的Pcell上行授权信息(UL grant)上，UE发送无线链路失败指示；基站配置UE释放Scell上行传输资源或为UE重新配置Scell的上行传输资源。
实施例三、若该UE当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区的传输质量不满足要求时，该UE将主小区的上行传输载波作为上行传输主载波，并发起路由区(Routing Area，RA)更新。
具体来说，当UE选择的小区的上行传输载波作为上行传输主载波时，一旦上行传输载波的质量变差或传输质量无法满足要求，例如：传输质量变差、无线资源管理(Radio Resource Management，e.g.RRM)测量低于一定门限或无线链路管理(Radio Link Management，RLM)过程出现定时器(T310)超时，则UE将上行传输主载波切换至其他小区的上行传输载波，以保证UE上行传输载波的传输质量。
在一种可能的实施方式中，本发明实施例提供的切换方法中，当UE通过自主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波时，该方法还包括：若UE当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当该UE需要发起上行调度请求时，该UE切换到主小区发起D-SR，并将主小区的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的切换方法中，针对被去选择的上行传输载波，该方法还包括以下步骤之一或任意组合：UE保留该上行传输载波的所有配置资源；UE停止在该上行传输载波上的所有传输；UE清除该上行传输载波对应的混合自动重传请求(Hybrid Automatic Repeat Request，HARQ)缓存，清除该上行传输载波对应的上行授权信息；UE将媒体接入控制MAC上行相关的上下文复位。
在具体实施时，针对被去选择的上行传输载波，保留该上行传输载波的所有配置资源，以便再次选择该上行传输载波作为上行传输主载波，同时清除该上行传输载波对应的HARQ缓存，以释放基站或服务器的存储空间，清除该上行传输载波对应的上行授权信息，以授权其他上行传输载波作为上行传输主载波，避免授权信息冲突，超过UE上行传输载波能力。
在一种可能的实施方式中，本发明实施例提供的切换方法中，该方法还包括：若UE当前选择主小区对应的上行传输载波为上行传输主载波，则该UE当接收到网络侧发送的激活辅小区的命令时，该UE仅激活该辅小区的下行传输资源；若UE当前选择辅小区对应的上行传输载波为上行传输主载波，则该UE当接收到网络侧发送的去激活辅小区的命令时，该UE仅去激活该辅小区的上行传输资源，并将主小区对应的上行传输载波作为上行传输主载波。
在具体实施时，基站在通知UE激活或去激活对应小区的上行传输资源或下行传输资源时，可以同时激活或去激活对应小区的上行传输资源或下行传输资源，也可以仅激活或去激活对应小区的上行传输资源或下行传输资源。
作为较为具体的实施例，为单载波上行传输的UE提供服务的小区集合中 包括两个小区：PCell和SCell，且UE具备上行传输主载波切换的能力，并选择PCell的上行传输载波为当前上行传输主载波；基站发送激活SCell的命令；则由于UE为单载波上行传输，且PCell的上行传输载波作为上行传输主载波，因此UE仅激活SCell下行传输资源。
作为另一较为具体的实施例，为单载波上行传输的UE提供服务的小区集合中包括两个小区：PCell和SCell，且UE具备上行传输主载波切换的能力，并选择SCell的上行传输载波作为当前上行传输主载波；基站发送去激活SCell的命令；则由于UE为单载波上行传输，可以支持下行载波聚合，则UE可以仅去激活Scell上行传输资源，同时将PCell的上行传输载波作为当前上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的切换方法中，UE获取网络侧通知的用于为该UE提供服务的小区集合的传输资源之前，该方法还包括：UE上报该UE支持上行传输主载波切换能力的能力信息给网络侧。
在一种可能的实施方式中，本发明实施例提供的切换方法中，若UE在n时刻确定需要进行上行传输主载波切换，则在n+k时刻新的上行传输主载波生效，其中k>＝0；UE在n时刻或n+k时刻停止原上行传输主载波的传输。
在具体实施时，本发明实施例中UE上行传输主载波切换存在时延时，上行传输主载波切换的时刻具体为：在n时刻UE决定进行上行传输主载波切换(例如，接收到基站发送的切换上行传输主载波的通知)，则在n+k时刻新的上行传输主载波生效，也即如果需要上行传输则可以通过切换后的小区的上行传输载波进行传输，其中k>＝0，而UE在n时刻或n+k时刻停止通过原上行传输载波进行传输。
本发明实施例提供的一种上行传输主载波切换控制装置，如图4所示，包括：资源确定单元402，用于确定为用户设备UE配置的用于为该UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源，用以实现该UE的上行传输主载波在不同的小区对应的上行传输载波之间进行切换；发送单元404，连接至资源确定单元402，用于将小区集合的传输资 源通知给该UE。
本发明实施例提供的上行传输主载波切换控制装置中，通过确定为UE配置的用于为该UE提供服务的小区集合的上行传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求，与现有技术中将宏小区设置为主小区，使用宏小区的上行传输载波进行传输相比，避免了发射功率大、对其他用户干扰大的问题，与现有技术中将小小区设置为主小区，使用小小区的上行传输载波进行传输相比，避免了由于UE移动频繁切换小区导致的业务传输中断以及增加核心网信令负荷的问题，与现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切换相比，实现仅针对UE的上行传输载波在小区间进行切换，兼顾不同小区的传输优势。
在具体实施时，当UE仅支持下行载波聚合，或者UE具有单载波上行发射能力时，为UE提供服务的小区集合中仍可以包含多个小区的上行传输载波，但是为了不超过UE的上行传输载波能力，多个小区的上行传输载波在同一时刻只能为由一个小区的上行传输载波作为该UE的上行传输主载波，当然，对于支持上行载波聚合的UE来说，在保证UE上行传输载波能力的同时，可以由多个小区的上行传输载波的聚合作为UE的上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的切换控制装置中，每个小区的上行传输载波的配置资源均包括以下资源：CBRA、D-SR、PUCCH。
在一种可能的实施方式中，本发明实施例提供的切换控制装置中，发送单元404还用于：通知UE切换上行传输主载波。
在具体实施时，通过基站通知UE切换上行传输主载波，在为UE提供服务的小区多于两个时，可以直接在多个小区中确定所要选择的小区，提高了切换小区的准确性。
在一种可能的实施方式中，本发明实施例提供的切换控制装置中，发送单元404通知UE切换上行传输主载波，具体使用以下几种方式，基站在通知 UE时可以单独使用其中一种方式，也可以多种方式结合使用。
方式一、通过层3、层2或层1命令，通知UE选择特定小区的上行传输载波作为上行传输主载波。
方式二、通过层3、层2或层1命令，通知UE上行传输主载波的子帧配置信息，其中包括上行传输主载波所对应的小区与子帧的对应关系。
方式三、通过去激活当前作为UE的上行传输主载波的辅小区的上行传输载波的配置资源，指示该UE将主小区的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的切换控制装置中，发送单元404通过层3命令通知UE选择特定小区的上行传输载波作为上行传输主载波时，层3命令中还包括该特定小区的上行传输载波的配置资源。
在一种可能的实施方式中，本发明实施例提供的切换控制装置中，为UE提供上行传输载波的配置资源的小区个数，大于或等于UE实际进行上行传输时所采用的上行传输载波所对应的小区个数的最大值。
在具体实施时，为UE提供上行传输载波的配置资源的小区个数大于或等于UE实际进行上行传输时所采用的上行传输载波所对应的小区个数的最大值，以便UE的上行传输主载波在多个不同小区之间进行切换。例如：为UE提供上行传输载波的配置资源的小区个数为三个，包括：一个主小区和两个辅小区，但UE上行仅支持单载波传输，即UE实际进行上行传输时所采用的上行传输载波所对应的小区个数的最大值为一个，则同一时刻只能由三个小区中的一个小区的上行传输载波作为该UE的上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的切换控制装置中，还包括：接收单元406，连接至资源确定单元402，用于在确定为UE配置的用于为该UE提供服务的小区集合的传输资源之前，接收UE上报的该UE支持上行传输主载波切换能力的能力信息；资源确定单元402确定为UE配置的用于为该UE提供服务的小区集合的传输资源，具体为：基于UE上报的能力信息，确定为UE配置的用于为该UE提供服务的小区集合的传输资源。
在本发明实施例提供的上行传输主载波切换控制装置中，资源确定单元 402可以采用中央处理器或单片机，发送单元404可以采用发射机或信号发射器，接收单元406可以采用接收器或信号接收机。
本发明实施例提供的一种上行传输主载波切换装置，如图5所示，包括：获取单元502，用于获取网络侧通知的用于为UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源；处理单元504，连接至获取单元502，用于当确定需要进行上行传输主载波切换时，通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波。
本发明实施例提供的上行传输主载波切换装置中，通过确定为UE配置的用于为该UE提供服务的小区集合的上行传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求，与现有技术中将宏小区设置为主小区，使用宏小区的上行传输载波进行传输相比，避免了发射功率大、对其他用户干扰大的问题，与现有技术中将小小区设置为主小区，使用小小区的上行传输载波进行传输相比，避免了由于UE移动频繁切换小区导致的业务传输中断以及增加核心网信令负荷的问题，与现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切换相比，实现仅针对UE的上行传输载波在小区间进行切换，兼顾不同小区的传输优势。
在一种可能的实施方式中，本发明实施例提供的切换装置中，处理单元504根据网络侧发送的切换上行传输主载波的通知，确定需要进行上行传输主载波切换。
在本发明实施例提供的切换装置中，通过基站通知UE切换上行传输主载波，在为UE提供服务的小区多于两个时，可以直接在多个小区中确定所要选择的小区，提高了切换小区的准确性。
在一种可能的实施方式中，本发明实施例提供的切换装置中，处理单元504通过如下方式之一接收网络侧发送的切换上行传输主载波的通知：通过层 3、层2或层1命令，接收网络侧发送的选择特定小区的上行传输载波作为上行传输主载波的通知；或者，通过层3、层2或层1命令，接收网络侧发送的上行传输主载波的子帧配置信息的通知，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，将网络侧发送的去激活当前作为上行传输主载波的辅小区的上行传输载波的配置资源的命令，作为将主小区的上行传输载波作为上行传输主载波的通知。
在一种可能的实施方式中，本发明实施例提供的切换装置中，当处理单元504接收到网络侧通过层3命令发送的选择特定小区的上行传输载波作为上行传输主载波的通知时，获取单元502还用于：从层3命令中获取该特定小区的上行传输载波的配置资源；处理单元504通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波，具体为：通过从层3命令中获取的该特定小区的上行传输载波的配置资源，将上行传输主载波切换为该特定小区对应的上行传输载波。
在一种可能的实施方式中，本发明实施例提供的切换装置中，处理单元504通过如下方式之一确定需要进行上行传输主载波切换：通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波；通过自主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波；当接收到网络侧发送的针对多个小区中的一个小区的上行调度命令时，确定需要将该小区的上行传输载波作为上行传输主载波。
在本发明实施例提供的切换装置中，UE不但可以通过接收基站发送的命令切换上行传输主载波对应的小区，还可以通过多个小区的上行传输资源在多个小区中确定需要将对应小区的上行传输载波作为上行传输主载波，UE根据多个小区的上行传输资源进行选择，对UE的上行传输业务具有较好的适应性，同时可以根据业务需要选择不同的小区，灵活性更强。
在一种可能的实施方式中，本发明实施例提供的切换装置中，处理单元504通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波时，处理单元504还用于：若当前选择辅小区的上行传输载 波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当需要发起上行调度请求时，切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区仅配置D-SR资源，当在该辅小区出现D-SR传输失败时，切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区的传输质量不满足要求时，将主小区的上行传输载波作为上行传输主载波，并发起RA。
在一种可能的实施方式中，本发明实施例提供的切换装置中，处理单元504通过自主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波时，处理单元504还用于：若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当需要发起上行调度请求时，切换到主小区发起D-SR，并将主小区的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，本发明实施例提供的切换装置中，针对被去选择的上行传输载波，处理单元504还用于以下步骤之一或任意组合：保留该上行传输载波的所有配置资源；停止在该上行传输载波上的所有传输；清除该上行传输载波对应的HARQ缓存，清除该上行传输载波对应的上行授权信息；将媒体接入控制MAC上行相关的上下文复位。
在具体实施时，针对被去选择的上行传输载波，保留该上行传输载波的所有配置资源，以便再次选择该上行传输载波作为上行传输主载波，同时清除该上行传输载波对应的HARQ缓存，以释放基站或服务器的存储空间，清除该上行传输载波对应的上行授权信息，以授权其他上行传输载波作为上行传输主载波，避免授权信息冲突，超过UE上行传输载波能力。
在一种可能的实施方式中，本发明实施例提供的切换装置中，处理单元504还用于：若当前选择主小区对应的上行传输载波为上行传输主载波，则当接收到网络侧发送的激活辅小区的命令时，仅激活该辅小区的下行传输资源； 若当前选择辅小区对应的上行传输载波为上行传输主载波，则当接收到网络侧发送的去激活辅小区的命令时，仅去激活该辅小区的上行传输资源，并将主小区对应的上行传输载波作为上行传输主载波。
在具体实施时，基站在通知UE激活或去激活对应小区的上行传输资源或下行传输资源时，可以同时激活或去激活对应小区的上行传输资源或下行传输资源，也可以仅激活或去激活对应小区的上行传输资源或下行传输资源。
在一种可能的实施方式中，本发明实施例提供的切换装置中，还包括：上报单元506，连接至获取单元502，用于在获取网络侧通知的用于为该UE提供服务的小区集合的传输资源之前，上报支持上行传输主载波切换能力的能力信息给网络侧。
在一种可能的实施方式中，本发明实施例提供的切换装置中，处理单元504若在n时刻确定需要进行上行传输主载波切换，则在n+k时刻新的上行传输主载波生效，其中k>＝0；在n时刻或n+k时刻停止原上行传输主载波的传输。
在具体实施时，本发明实施例中UE上行传输主载波切换存在时延时，上行传输主载波切换的时刻具体为：在n时刻UE决定进行上行传输主载波切换(例如，接收到基站发送的切换上行传输主载波的通知)，则在n+k时刻新的上行传输主载波生效，也即如果需要上行传输则可以通过切换后的小区的上行传输载波进行传输，其中k>＝0，而UE在n时刻或n+k时刻停止通过原上行传输载波进行传输。
在本发明实施例提供的上行传输主载波切换装置中，获取单元502可以采用接收器或信号接收机，处理单元504可以采用中央处理器或单片机，上报单元506可以发射机或信号发射器。
本发明实施例提供的一种基站，包括：本发明实施例提供的上行传输主载波切换控制装置。
本发明实施例提供的基站中，在基站中加入上行传输主载波切换控制装置，通过确定为用户设备UE配置的用于为该UE提供服务的小区集合的上行 传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求，与现有技术中将宏小区设置为主小区，使用宏小区的上行传输载波进行传输相比，避免了发射功率大、对其他用户干扰大的问题，与现有技术中将小小区设置为主小区，使用小小区的上行传输载波进行传输相比，避免了由于UE移动频繁切换小区导致的业务传输中断以及增加核心网信令负荷的问题，与现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切换相比，实现仅针对UE的上行传输载波在小区间进行切换，兼顾不同小区的传输优势。
本发明实施例提供的一种用户设备，包括：本发明实施例提供的上行传输主载波切换装置。
本发明实施例提供的用户设备中，在用户设备中加入上行传输主载波切换装置，通过确定为用户设备UE配置的用于为该UE提供服务的小区集合的上行传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求，与现有技术中将宏小区设置为主小区，使用宏小区的上行传输载波进行传输相比，避免了发射功率大、对其他用户干扰大的问题，与现有技术中将小小区设置为主小区，使用小小区的上行传输载波进行传输相比，避免了由于UE移动频繁切换小区导致的业务传输中断以及增加核心网信令负荷的问题，与现有技术中进行小区切换时，对UE的上行传输载波和下行传输载波同时进行小区间的切换相比，实现仅针对UE的上行传输载波在小区间进行切换，兼顾不同小区的传输优势。
基于上述实施例提供的基站侧上行传输主载波切换控制方法和装置，本申请实施例提供了一种基站，如图6所示，该基站包括：收发信机600、处理器602、存储器604；还包括总线接口606和用户接口608；
处理器602，用于读取存储器中的程序，执行下列过程：确定为用户设备UE配置的用于为该UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源，以及通过收发信机600将小区集合的传输资源通知给该UE，用以实现该UE的上行传输主载波在不同的小区对应的上行传输载波之间进行切换；
存储器604，用于存储一个或多个可执行程序，被用于配置处理器602。
其中，在图6中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器602代表的一个或多个处理器和存储器604代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。收发信机600可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器602负责管理总线架构和通常的处理，存储器604可以存储处理器602在执行操作时所使用的数据。总线接口606提供接口。针对不同的用户设备，用户接口608还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。在一种可能的实施方式中，每个小区的上行传输载波的配置资源均包括以下资源：CBRA、D-SR、PUCCH。
在一种可能的实施方式中，处理器602还用于：通过收发信机600通知UE切换上行传输主载波。
在一种可能的实施方式中，处理器602具体用于：通过层3、层2或层1命令，通知UE选择特定小区的上行传输载波作为上行传输主载波；或者，通过层3、层2或层1命令，通知UE上行传输主载波的子帧配置信息，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，通过去激活当前作为UE的上行传输主载波的辅小区的上行传输载波的配置资源，指示该UE将主小区的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，处理器602通过层3命令通知UE选择特定小区的上行传输载波作为上行传输主载波时，层3命令中还包括该特定小区的 上行传输载波的配置资源。
在一种可能的实施方式中，为UE提供上行传输载波的配置资源的小区个数，大于或等于UE实际进行上行传输时所采用的上行传输载波所对应的小区个数的最大值。
在一种可能的实施方式中，处理器602还用于：在确定为UE配置的用于为该UE提供服务的小区集合的传输资源之前，通过收发信机600接收UE上报的该UE支持上行传输主载波切换能力的能力信息；处理器602确定为UE配置的用于为该UE提供服务的小区集合的传输资源，具体为：基于UE上报的能力信息，确定为UE配置的用于为该UE提供服务的小区集合的传输资源。
基于上述实施例提供的用户侧的上行传输主载波切换方法和装置，本申请实施例提供了一种用户设备UE，如图7所示，该UE包括：收发信机700、处理器702、存储器704；还包括总线接口706和用户接口708；
处理器702，用于读取存储器704中的程序，执行下列过程：通过收发信机700获取网络侧通知的用于为UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源连接至收发信机700，用于当确定需要进行上行传输主载波切换时，通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波；
存储器704，用于存储一个或多个可执行程序，被用于配置处理器702。
其中，在图6中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器702代表的一个或多个处理器和存储器704代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。收发信机700可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。处理器702负责管理总线架构和通常的处理，存储器704可以存储处理器702在执行操作时所使用的数据。总线接口706提供接口。针对不同的用户设备，用户接口708还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、 显示器、扬声器、麦克风、操纵杆等。
在一种可能的实施方式中，处理器702根据网络侧发送的切换上行传输主载波的通知，确定需要进行上行传输主载波切换。
在一种可能的实施方式中，处理器702通过如下方式之一接收网络侧发送的切换上行传输主载波的通知：通过层3、层2或层1命令，接收网络侧发送的选择特定小区的上行传输载波作为上行传输主载波的通知；或者，通过层3、层2或层1命令，接收网络侧发送的上行传输主载波的子帧配置信息的通知，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，将网络侧发送的去激活当前作为上行传输主载波的辅小区的上行传输载波的配置资源的命令，作为将主小区的上行传输载波作为上行传输主载波的通知。
在一种可能的实施方式中，当处理器702接收到网络侧通过层3命令发送的选择特定小区的上行传输载波作为上行传输主载波的通知时，处理器702还用于：从层3命令中获取该特定小区的上行传输载波的配置资源；处理器702通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波，具体为：通过从层3命令中获取的该特定小区的上行传输载波的配置资源，将上行传输主载波切换为该特定小区对应的上行传输载波。
在一种可能的实施方式中，处理器702通过如下方式之一确定需要进行上行传输主载波切换：通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波；通过自主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波；当接收到网络侧发送的针对多个小区中的一个小区的上行调度命令时，确定需要将该小区的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，处理器702通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波时，处理器702还用于：若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当需要发起上行调度请求时，切换到主小区发 起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区仅配置D-SR资源，当在该辅小区出现D-SR传输失败时，切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区的传输质量不满足要求时，将主小区的上行传输载波作为上行传输主载波，并发起RA。
在一种可能的实施方式中，处理器702通过自主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波时，处理器702还用于：若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当需要发起上行调度请求时，切换到主小区发起D-SR，并将主小区的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，针对被去选择的上行传输载波，处理器702还用于以下功能之一或任意组合：保留该上行传输载波的所有配置资源；停止在该上行传输载波上的所有传输；清除该上行传输载波对应的HARQ缓存，清除该上行传输载波对应的上行授权信息；将媒体接入控制MAC上行相关的上下文复位。
在一种可能的实施方式中，处理器702还用于：若当前选择主小区对应的上行传输载波为上行传输主载波，则当接收到网络侧发送的激活辅小区的命令时，仅激活该辅小区的下行传输资源；若当前选择辅小区对应的上行传输载波为上行传输主载波，则当接收到网络侧发送的去激活辅小区的命令时，仅去激活该辅小区的上行传输资源，并将主小区对应的上行传输载波作为上行传输主载波。
在一种可能的实施方式中，处理器702还用于：在获取网络侧通知的用于为该UE提供服务的小区集合的传输资源之前，通过收发信机700上报支持上行传输主载波切换能力的能力信息给网络侧。
在一种可能的实施方式中，处理器702若在n时刻确定需要进行上行传输主载波切换，则在n+k时刻新的上行传输主载波生效，其中k>＝0；在n时 刻或n+k时刻停止原上行传输主载波的传输。
本发明实施例提供了一种上行传输主载波切换及其控制方法、装置、基站及UE，通过确定为UE配置的用于为该UE提供服务的小区集合的上行传输资源，使得UE的上行传输主载波可以在为UE配置的用于为该UE提供服务的小区集合中多个不同小区之间进行切换，增强了用户设备上行传输主载波的传输灵活性，兼顾发射功率与UE业务的传输需求。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步 骤。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (56)

  1. 一种上行传输主载波切换控制方法，其特征在于，包括：
    确定为用户设备UE配置的用于为该UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源，用以实现该UE的上行传输主载波在不同的小区对应的上行传输载波之间进行切换；
    将所述小区集合的传输资源通知给该UE。
  2. 根据权利要求1所述的方法，其特征在于，每个小区的上行传输载波的配置资源均包括以下资源：
    基于冲突的随机接入CBRA、专用调度请求D-SR、物理上行链路控制信道PUCCH。
  3. 根据权利要求1所述的方法，其特征在于，该方法还包括：
    通知所述UE切换上行传输主载波。
  4. 根据权利要求3所述的方法，其特征在于，通知所述UE切换上行传输主载波，包括：
    通过层3、层2或层1命令，通知所述UE选择特定小区的上行传输载波作为上行传输主载波；或者，
    通过层3、层2或层1命令，通知所述UE上行传输主载波的子帧配置信息，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，
    通过去激活当前作为所述UE的上行传输主载波的辅小区的上行传输载波的配置资源，指示该UE将主小区的上行传输载波作为上行传输主载波。
  5. 根据权利要求4所述的方法，其特征在于，当通过层3命令通知所述UE选择特定小区的上行传输载波作为上行传输主载波时，所述层3命令中还包括该特定小区的上行传输载波的配置资源。
  6. 根据权利要求1-5中任一权项所述的方法，其特征在于，
    为所述UE提供上行传输载波的配置资源的小区个数，大于或等于所述UE实际进行上行传输时所采用的上行传输载波所对应的小区个数的最大值。
  7. 根据权利要求1-5中任一权项所述的方法，其特征在于，确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源之前，该方法还包括：接收所述UE上报的该UE支持上行传输主载波切换能力的能力信息；
    确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源，具体为：基于所述UE上报的所述能力信息，确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源。
  8. 一种上行传输主载波切换方法，其特征在于，包括：
    用户设备UE获取网络侧通知的用于为该UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源；
    当该UE确定需要进行上行传输主载波切换时，该UE通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波。
  9. 根据权利要求8所述的方法，其特征在于，所述UE根据网络侧发送的切换上行传输主载波的通知，确定需要进行上行传输主载波切换。
  10. 根据权利要求9所述的方法，其特征在于，所述UE通过如下方式之一接收网络侧发送的切换上行传输主载波的通知：
    通过层3、层2或层1命令，接收网络侧发送的选择特定小区的上行传输载波作为上行传输主载波的通知；或者，
    通过层3、层2或层1命令，接收网络侧发送的上行传输主载波的子帧配置信息的通知，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，
    将网络侧发送的去激活当前作为所述UE的上行传输主载波的辅小区的上行传输载波的配置资源的命令，作为该UE将主小区的上行传输载波作为上行传输主载波的通知。
  11. 根据权利要求10所述的方法，其特征在于，当所述UE通过层3命令，接收网络侧发送的选择特定小区的上行传输载波作为上行传输主载波的通知时，该方法还包括：所述UE从所述层3命令中获取该特定小区的上行传 输载波的配置资源；
    所述UE通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波，具体为：
    所述UE通过从所述层3命令中获取的该特定小区的上行传输载波的配置资源，将上行传输主载波切换为该特定小区对应的上行传输载波。
  12. 根据权利要求8所述的方法，其特征在于，所述UE通过如下方式之一确定需要进行上行传输主载波切换：
    所述UE通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波；
    所述UE通过自主发起的专用调度请求D-SR过程，确定需要将D-SR所在载波作为上行传输主载波；
    所述UE当接收到网络侧发送的针对所述多个小区中的一个小区的上行调度命令时，该UE确定需要将该小区的上行传输载波作为上行传输主载波。
  13. 根据权利要求12所述的方法，其特征在于，当所述UE通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波时，该方法还包括：
    若所述UE当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置基于冲突的随机接入CBRA和D-SR资源，当该UE需要发起上行调度请求时，该UE切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，
    若所述UE当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区仅配置D-SR资源，当该UE在该辅小区出现D-SR传输失败时，该UE切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，
    若所述UE当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区的传输质量不满足要求时，该UE将主小区的上行传输载波作为上行传输主载波，并发起随机接入RA。
  14. 根据权利要求12所述的方法，其特征在于，当所述UE通过自主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波时，该方法还包括：
    若所述UE当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当该UE需要发起上行调度请求时，该UE切换到主小区发起D-SR，并将主小区的上行传输载波作为上行传输主载波。
  15. 根据权利要求8-14中任一权项所述的方法，其特征在于，针对被去选择的上行传输载波，该方法还包括以下步骤之一或任意组合：
    所述UE保留该上行传输载波的所有配置资源；
    所述UE停止在该上行传输载波上的所有传输；
    所述UE清除该上行传输载波对应的混合自动重传请求HARQ缓存，清除该上行传输载波对应的上行授权信息；
    所述UE将媒体接入控制MAC上行相关的上下文复位。
  16. 根据权利要求8-14中任一权项所述的方法，其特征在于，该方法还包括：
    若所述UE当前选择主小区对应的上行传输载波为上行传输主载波，则所述UE当接收到网络侧发送的激活辅小区的命令时，所述UE仅激活该辅小区的下行传输资源；
    若所述UE当前选择辅小区对应的上行传输载波为上行传输主载波，则所述UE当接收到网络侧发送的去激活辅小区的命令时，所述UE仅去激活该辅小区的上行传输资源，并将主小区对应的上行传输载波作为上行传输主载波。
  17. 根据权利要求8-14中任一权项所述的方法，其特征在于，所述UE获取网络侧通知的用于为该UE提供服务的小区集合的传输资源之前，该方法还包括：
    所述UE上报该UE支持上行传输主载波切换能力的能力信息给网络侧。
  18. 根据权利要求8-14中任一权项所述的方法，其特征在于，若所述UE在n时刻确定需要进行上行传输主载波切换，则在n+k时刻新的上行传输主 载波生效，其中k>＝0；所述UE在n时刻或n+k时刻停止原上行传输主载波的传输。
  19. 一种上行传输主载波切换控制装置，其特征在于，包括：
    资源确定单元，用于确定为用户设备UE配置的用于为该UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源，用以实现该UE的上行传输主载波在不同的小区对应的上行传输载波之间进行切换；
    发送单元，连接至所述资源确定单元，用于将所述小区集合的传输资源通知给该UE。
  20. 根据权利要求19所述的装置，其特征在于，每个小区的上行传输载波的配置资源均包括以下资源：
    基于冲突的随机接入CBRA、专用调度请求D-SR、物理上行链路控制信道PUCCH。
  21. 根据权利要求19所述的装置，其特征在于，所述发送单元还用于：
    通知所述UE切换上行传输主载波。
  22. 根据权利要求21所述的装置，其特征在于，所述发送单元通知所述UE切换上行传输主载波时，具体用于：
    通过层3、层2或层1命令，通知所述UE选择特定小区的上行传输载波作为上行传输主载波；或者，
    通过层3、层2或层1命令，通知所述UE上行传输主载波的子帧配置信息，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，
    通过去激活当前作为所述UE的上行传输主载波的辅小区的上行传输载波的配置资源，指示该UE将主小区的上行传输载波作为上行传输主载波。
  23. 根据权利要求22所述的装置，其特征在于，所述发送单元通过层3命令通知所述UE选择特定小区的上行传输载波作为上行传输主载波时，所述层3命令中还包括该特定小区的上行传输载波的配置资源。
  24. 根据权利要求19-23中任一权项所述的装置，其特征在于，
    为所述UE提供上行传输载波的配置资源的小区个数，大于或等于所述UE实际进行上行传输时所采用的上行传输载波所对应的小区个数的最大值。
  25. 根据权利要求19-23中任一权项所述的装置，其特征在于，还包括：
    接收单元，连接至所述资源确定单元，用于在确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源之前，接收所述UE上报的该UE支持上行传输主载波切换能力的能力信息；
    所述资源确定单元确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源，具体为：基于所述UE上报的所述能力信息，确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源。
  26. 一种上行传输主载波切换装置，其特征在于，包括：
    获取单元，用于获取网络侧通知的用于为UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源；
    处理单元，连接至所述获取单元，用于当确定需要进行上行传输主载波切换时，通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波。
  27. 根据权利要求26所述的装置，其特征在于，所述处理单元根据网络侧发送的切换上行传输主载波的通知，确定需要进行上行传输主载波切换。
  28. 根据权利要求27所述的装置，其特征在于，所述处理单元通过如下方式之一接收网络侧发送的切换上行传输主载波的通知：
    通过层3、层2或层1命令，接收网络侧发送的选择特定小区的上行传输载波作为上行传输主载波的通知；或者，
    通过层3、层2或层1命令，接收网络侧发送的上行传输主载波的子帧配置信息的通知，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，
    将网络侧发送的去激活当前作为上行传输主载波的辅小区的上行传输载波的配置资源的命令，作为将主小区的上行传输载波作为上行传输主载波的通知。
  29. 根据权利要求28所述的装置，其特征在于，当所述处理单元接收到网络侧通过层3命令发送的选择特定小区的上行传输载波作为上行传输主载波的通知时，所述获取单元还用于：
    从所述层3命令中获取该特定小区的上行传输载波的配置资源；
    所述处理单元通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波，具体为：
    通过从所述层3命令中获取的该特定小区的上行传输载波的配置资源，将上行传输主载波切换为该特定小区对应的上行传输载波。
  30. 根据权利要求26所述的装置，其特征在于，所述处理单元通过如下方式之一确定需要进行上行传输主载波切换：
    通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波；
    通过自主发起的专用调度请求D-SR过程，确定需要将D-SR所在载波作为上行传输主载波；
    当接收到网络侧发送的针对所述多个小区中的一个小区的上行调度命令时，确定需要将该小区的上行传输载波作为上行传输主载波。
  31. 根据权利要求30所述的装置，其特征在于，所述处理单元通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波时，所述处理单元还用于：
    若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置基于冲突的随机接入CBRA和D-SR资源，当需要发起上行调度请求时，切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，
    若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区仅配置D-SR资源，当在该辅小区出现D-SR传输失败时，切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，
    若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区的 传输质量不满足要求时，将主小区的上行传输载波作为上行传输主载波，并发起随机接入RA。
  32. 根据权利要求30所述的装置，其特征在于，所述处理单元通过自主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波时，所述处理单元还用于：
    若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当需要发起上行调度请求时，切换到主小区发起D-SR，并将主小区的上行传输载波作为上行传输主载波。
  33. 根据权利要求26-32任一权项所述的装置，其特征在于，针对被去选择的上行传输载波，所述处理单元还用于以下功能之一或任意组合：
    保留该上行传输载波的所有配置资源；
    停止在该上行传输载波上的所有传输；
    清除该上行传输载波对应的混合自动重传请求HARQ缓存，清除该上行传输载波对应的上行授权信息；
    将媒体接入控制MAC上行相关的上下文复位。
  34. 根据权利要求26-32任一权项所述的装置，其特征在于，所述处理单元还用于：
    若当前选择主小区对应的上行传输载波为上行传输主载波，则当接收到网络侧发送的激活辅小区的命令时，仅激活该辅小区的下行传输资源；
    若当前选择辅小区对应的上行传输载波为上行传输主载波，则当接收到网络侧发送的去激活辅小区的命令时，仅去激活该辅小区的上行传输资源，并将主小区对应的上行传输载波作为上行传输主载波。
  35. 根据权利要求26-32中任一权项所述的装置，其特征在于，还包括：上报单元，连接至所述获取单元，用于在获取网络侧通知的用于为该UE提供服务的小区集合的传输资源之前，上报支持上行传输主载波切换能力的能力信息给网络侧。
  36. 根据权利要求26-32中任一权项所述的装置，其特征在于，所述处理 单元若在n时刻确定需要进行上行传输主载波切换，则在n+k时刻新的上行传输主载波生效，其中k>＝0；在n时刻或n+k时刻停止原上行传输主载波的传输。
  37. 一种基站，其特征在于，包括：
    如权利要求19-25中任一权项所述的上行传输主载波切换控制装置。
  38. 一种用户设备，其特征在于，包括：
    如权利要求26-36中任一权项所述的上行传输主载波切换装置。
  39. 一种基站，其特征在于，至少包括：收发信机、处理器、存储器；
    所述处理器，用于读取所述存储器中的程序，执行下列过程：确定为用户设备UE配置的用于为该UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源，以及通过所述收发信机将所述小区集合的传输资源通知给该UE，用以实现该UE的上行传输主载波在不同的小区对应的上行传输载波之间进行切换。
  40. 根据权利要求39所述的基站，其特征在于，每个小区的上行传输载波的配置资源均包括以下资源：
    基于冲突的随机接入CBRA、专用调度请求D-SR、物理上行链路控制信道PUCCH。
  41. 根据权利要求39所述的基站，其特征在于，所述处理器还用于：
    通过所述收发信机通知所述UE切换上行传输主载波。
  42. 根据权利要求41所述的基站，其特征在于，所述处理器具体用于：
    通过层3、层2或层1命令，通知所述UE选择特定小区的上行传输载波作为上行传输主载波；或者，
    通过层3、层2或层1命令，通知所述UE上行传输主载波的子帧配置信息，其中包括上行传输主载波所对应的小区与子帧的对应关系；或者，
    通过去激活当前作为所述UE的上行传输主载波的辅小区的上行传输载波的配置资源，指示该UE将主小区的上行传输载波作为上行传输主载波。
  43. 根据权利要求42所述的基站，其特征在于，所述处理器通过层3命 令通知所述UE选择特定小区的上行传输载波作为上行传输主载波时，所述层3命令中还包括该特定小区的上行传输载波的配置资源。
  44. 根据权利要求39-43中任一权项所述的基站，其特征在于，
    为所述UE提供上行传输载波的配置资源的小区个数，大于或等于所述UE实际进行上行传输时所采用的上行传输载波所对应的小区个数的最大值。
  45. 根据权利要求39-43中任一权项所述的基站，其特征在于，所述处理器还用于：在确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源之前，通过所述收发信机接收所述UE上报的该UE支持上行传输主载波切换能力的能力信息；
    所述处理器确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源，具体为：基于所述UE上报的所述能力信息，确定为所述UE配置的用于为该UE提供服务的小区集合的传输资源。
  46. 一种用户设备，其特征在于，至少包括：收发信机、处理器、存储器；
    所述处理器，用于读取所述存储器中的程序，执行下列过程：通过所述收发信机获取网络侧通知的用于为UE提供服务的小区集合的传输资源，其中包括多个小区的上行传输载波的配置资源；当确定需要进行上行传输主载波切换时，通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波。
  47. 根据权利要求46所述的用户设备，其特征在于，所述处理器根据网络侧发送的切换上行传输主载波的通知，确定需要进行上行传输主载波切换。
  48. 根据权利要求47所述的用户设备，其特征在于，所述处理器通过如下方式之一接收网络侧发送的切换上行传输主载波的通知：
    通过层3、层2或层1命令，接收网络侧发送的选择特定小区的上行传输载波作为上行传输主载波的通知；或者，
    通过层3、层2或层1命令，接收网络侧发送的上行传输主载波的子帧配置信息的通知，其中包括上行传输主载波所对应的小区与子帧的对应关系； 或者，
    将网络侧发送的去激活当前作为上行传输主载波的辅小区的上行传输载波的配置资源的命令，作为将主小区的上行传输载波作为上行传输主载波的通知。
  49. 根据权利要求48所述的用户设备，其特征在于，当所述处理器接收到网络侧通过层3命令发送的选择特定小区的上行传输载波作为上行传输主载波的通知时，所述处理器还用于：
    从所述层3命令中获取该特定小区的上行传输载波的配置资源；
    所述处理器通过新的小区的上行传输载波的配置资源，将上行传输主载波切换为该新的小区对应的上行传输载波，具体为：
    通过从所述层3命令中获取的该特定小区的上行传输载波的配置资源，将上行传输主载波切换为该特定小区对应的上行传输载波。
  50. 根据权利要求46所述的用户设备，其特征在于，所述处理器通过如下方式之一确定需要进行上行传输主载波切换：
    通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波；
    通过自主发起的专用调度请求D-SR过程，确定需要将D-SR所在载波作为上行传输主载波；
    当接收到网络侧发送的针对所述多个小区中的一个小区的上行调度命令时，确定需要将该小区的上行传输载波作为上行传输主载波。
  51. 根据权利要求50所述的用户设备，其特征在于，所述处理器通过自主发起的随机接入过程，确定需要将前导序列所在的传输载波作为上行传输主载波时，所述处理器还用于：
    若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置基于冲突的随机接入CBRA和D-SR资源，当需要发起上行调度请求时，切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，
    若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区仅配置D-SR资源，当在该辅小区出现D-SR传输失败时，切换到主小区发起CBRA，并将主小区的上行传输载波作为上行传输主载波；或者，
    若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区的传输质量不满足要求时，将主小区的上行传输载波作为上行传输主载波，并发起随机接入RA。
  52. 根据权利要求50所述的用户设备，其特征在于，所述处理器通过自主发起的D-SR过程，确定需要将D-SR所在载波作为上行传输主载波时，所述处理器还用于：
    若当前选择辅小区的上行传输载波作为上行传输主载波，且该辅小区未配置CBRA和D-SR资源，当需要发起上行调度请求时，切换到主小区发起D-SR，并将主小区的上行传输载波作为上行传输主载波。
  53. 根据权利要求46-52任一权项所述的用户设备，其特征在于，针对被去选择的上行传输载波，所述处理器还用于以下功能之一或任意组合：
    保留该上行传输载波的所有配置资源；
    停止在该上行传输载波上的所有传输；
    清除该上行传输载波对应的混合自动重传请求HARQ缓存，清除该上行传输载波对应的上行授权信息；
    将媒体接入控制MAC上行相关的上下文复位。
  54. 根据权利要求46-52任一权项所述的用户设备，其特征在于，所述处理器还用于：
    若当前选择主小区对应的上行传输载波为上行传输主载波，则当接收到网络侧发送的激活辅小区的命令时，仅激活该辅小区的下行传输资源；
    若当前选择辅小区对应的上行传输载波为上行传输主载波，则当接收到网络侧发送的去激活辅小区的命令时，仅去激活该辅小区的上行传输资源，并将主小区对应的上行传输载波作为上行传输主载波。
  55. 根据权利要求46-52中任一权项所述的用户设备，其特征在于，所述 处理器还用于：在获取网络侧通知的用于为该UE提供服务的小区集合的传输资源之前，通过所述收发信机上报支持上行传输主载波切换能力的能力信息给网络侧。
  56. 根据权利要求46-52中任一权项所述的用户设备，其特征在于，所述处理器若在n时刻确定需要进行上行传输主载波切换，则在n+k时刻新的上行传输主载波生效，其中k>＝0；在n时刻或n+k时刻停止原上行传输主载波的传输。
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WO2019200546A1 (zh) * 2018-04-17 2019-10-24 北京小米移动软件有限公司 随机接入方法及装置

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JP2017526301A (ja) 2017-09-07
EP3188542B1 (en) 2020-04-08
KR20170047366A (ko) 2017-05-04
CN105376812A (zh) 2016-03-02
US20170290015A1 (en) 2017-10-05
US10721734B2 (en) 2020-07-21
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EP3188542A1 (en) 2017-07-05
EP3188542A4 (en) 2017-09-06

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