WO2011160289A1 - 一种多载波管理、多载波激活/去激活的方法及装置 - Google Patents

一种多载波管理、多载波激活/去激活的方法及装置 Download PDF

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Publication number
WO2011160289A1
WO2011160289A1 PCT/CN2010/074246 CN2010074246W WO2011160289A1 WO 2011160289 A1 WO2011160289 A1 WO 2011160289A1 CN 2010074246 W CN2010074246 W CN 2010074246W WO 2011160289 A1 WO2011160289 A1 WO 2011160289A1
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WIPO (PCT)
Prior art keywords
carrier
base station
component carrier
frequency band
information
Prior art date
Application number
PCT/CN2010/074246
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English (en)
French (fr)
Inventor
施小娟
黄亚达
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to PCT/CN2010/074246 priority Critical patent/WO2011160289A1/zh
Publication of WO2011160289A1 publication Critical patent/WO2011160289A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0096—Indication of changes in allocation
    • H04L5/0098—Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0058—Allocation criteria
    • H04L5/0064—Rate requirement of the data, e.g. scalable bandwidth, data priority

Definitions

  • the present invention relates to the field of communications, and in particular, to a multi-carrier management, multi-carrier activation/deactivation method and apparatus. Background technique
  • LTE Long Term Evolution
  • LTE-A Carrier Aggregation
  • UE User Equipment
  • the CA aggregates two or more Component Carriers (CCs) to support transmission bandwidths greater than 20 MHz and no more than 100 MHz.
  • CCs Component Carriers
  • FIG. 1 is a schematic diagram of carrier aggregation according to the related art.
  • the individual component carriers performing carrier aggregation may be continuous or discontinuous in the frequency domain.
  • the radio structure of the UE needs to meet the corresponding requirements. Taking the downlink carrier aggregation supported by the UE in the frequency division duplex (FDD) as an example, if two or more discontinuous component carriers are received, the UE needs to have two or more radio receiving devices (Receiver).
  • FDD frequency division duplex
  • Rx can receive data on multiple discontinuous component carriers at the same time; if receiving two or more consecutive component carriers in the frequency domain, compared to a radio receiving device with a maximum bandwidth of 20 MHz in a single carrier system, UE It is required that a radio receiving device having a maximum bandwidth exceeding 20 MHz can simultaneously receive data on a plurality of consecutive component carriers, or if the UE has multiple radio receiving devices, the UE can use the plurality of radio receiving devices simultaneously in the plurality of continuous components. Receive data on the carrier. Similarly, for the FDD, the UE supports uplink carrier aggregation.
  • the UE transmits data on two or more discontinuous component carriers at the same time, the UE needs to have two or more radio transmitting devices (Transmitter, Tx); To transmit data on two or more consecutive component carriers, the UE needs to have a radio transmitting device with a maximum bandwidth exceeding 20 MHz or two or more radio transmitting devices.
  • Tx radio transmitting devices
  • TDD time division duplex
  • the evolved NodeB can configure up to 5 cells for the UE.
  • the base station may add a new UE to the UE through Radio Resource Control (RRC) signaling due to the increase of the UE service traffic or the radio resource management (RRM) requirement of the base station.
  • RRC Radio Resource Control
  • RRM radio resource management
  • the configuration of the cell includes the configuration information related to the uplink and downlink carriers of the newly added cell.
  • the base station may delete the cell that has been configured to the UE by using RRC signaling, specifically including the deleted cell. , downlink carrier configuration information.
  • RRC Radio Resource Control
  • downlink carrier configuration information specifically including the deleted cell.
  • the base station configures a primary serving cell (Pcell) for the UE through an explicit configuration or a protocol, and the downlink carrier working by the Pcell is called a downlink primary carrier.
  • Pcell primary serving cell
  • the downlink carrier working by the Pcell is called a downlink primary carrier.
  • DL PCC Downlink Primary Component Carrier
  • U PCC Uplink Primary Component Carrier
  • SCC Uplink Secondary Component Carrier
  • the RRC signaling is used to configure multiple cells for the UE, that is, the UE works on multiple carriers, and the UE needs to use a radio transceiver device with a bandwidth exceeding 20 MHz or use multiple radio transceiver devices, which greatly increases the battery power consumption of the UE. Therefore, considering the bursty characteristics of the service, although the UE works at the highest rate, it is possible to use up to 5 carriers at most, but in the burst gap, the actual traffic of the UE is rarely or close to zero, and if the UE continues to Receiving/transmitting data on multiple carriers will result in higher power overhead.
  • a carrier activation/deactivation mechanism can be introduced based on the above-mentioned increase/decrease cell configuration (carrier configuration).
  • the downlink carrier and the uplink carrier in one cell can be independently activated/deactivated.
  • the base station activates/deactivates the secondary carrier through an explicit Medium Access Control (MAC) command notification or through an agreed implicit rule.
  • MAC Medium Access Control
  • the primary carrier is activated once activated, ie, activated/deactivated.
  • the mechanism is only implemented for the secondary carrier.
  • the UE performs data reception only on the activated downlink carrier, such as monitoring of a Physical Downlink Control Channel (PDCCH).
  • a Physical Downlink Control Channel (PDCCH)
  • the UE does not monitor the PDCCH channel and does not receive the physical downlink shared channel ( Data on the Physical Downlink Shared Channel, PDSCH) to save power.
  • PDSCH Physical Downlink Shared Channel
  • the UE only sends data on the activated uplink carrier.
  • the UE stops transmitting uplink data, including stopping transmitting Sounding Reference Symbols (SRS), and stopping on the physical uplink control channel (Physical Uplink Control Channel).
  • SRS Sounding Reference Symbols
  • PUCCH Physical Uplink Control Channel
  • the base station can command the UE to add carriers, delete carriers, activate carriers, and deactivate the carriers to implement multi-carrier management based on multi-carrier measurement information provided by the UE and a reasonable RRM management algorithm.
  • carrier aggregation is supported, and the UE's RF junction If the multi-carrier management of the base station does not match the actual capability of the UE, the data transmission of the UE may be interrupted or the multi-carrier management may fail.
  • An object of the present invention is to provide a multi-carrier management method and apparatus for solving a multi-carrier system in which multi-carrier management of a base station does not match the actual multi-carrier capability of the UE, resulting in interruption of data transmission of the UE or failure of multi-carrier management. technical problem.
  • the present invention discloses a multi-carrier management method, the method comprising:
  • the base station receives the multi-carrier group information fed back by the user equipment (UE), and performs multi-carrier management according to the multi-carrier group information.
  • UE user equipment
  • the method for the UE to feed back the multi-carrier group information to the base station is specifically:
  • the UE When receiving the message of adding/deleting a component carrier of the base station, the UE feeds back an add/drop component carrier complete message to the base station; and the add/drop component carrier complete message carries the multi-carrier packet information.
  • the multi-carrier group information includes: a component carrier group identifier and identification information of each component carrier in the component carrier group; or a component carrier group identifier and frequency and physical cell identifier (PCI) information of each component carrier in the component carrier group .
  • PCI physical cell identifier
  • the method for the UE to feed back the multi-carrier group information to the base station is specifically:
  • the base station sends a UE capability query request to the UE; the UE feeds back the UE capability report message to the base station, where the UE capability carries the multi-carrier packet information.
  • the multi-carrier packet information includes: a component carrier group identifier and a frequency band supported by the component carrier group; or a component carrier group identifier and a frequency band supported by the component carrier group and a bandwidth corresponding to the frequency band; or one or more frequency band information, The bandwidth corresponding to the frequency band and the frequency band information supported by the frequency band capable of performing iso-band carrier aggregation.
  • the multi-carrier packet information characterizes the distribution of each component carrier configured by the base station to the UE on the radio frequency unit of the UE, and the component carrier on the same multi-carrier packet will be The same radio frequency unit in the UE is responsible for data reception and/or transmission, and component carriers on different multi-carrier packets will be responsible for data reception and/or transmission by different radio frequency units in the UE.
  • the base station performs multi-carrier management according to the multi-carrier group information to include one or more of the following:
  • the base station avoids configuring, to the UE, a component carrier that is not supported by the UE capability according to the multi-carrier packet information;
  • the base station learns that the UE has only one radio receiving/transmitting device according to the multi-carrier packet information, if the base station needs to perform measurement on the configured component carrier, the base station configures a measurement gap for the UE, and the UE implements the component carrier in the measurement gap. Measurement, the base station stops data scheduling of the UE in the measurement gap to avoid data loss;
  • the base station learns that the UE has multiple radio access/transmitting devices according to the multi-carrier packet information, and performing activation/deactivation of a certain multi-carrier packet does not affect data transmission in other multi-carrier packets, The base station performs an activation/deactivation operation on the multi-carrier packet as needed;
  • the base station learns that the UE has multiple radio access/transmitting devices according to the multi-carrier packet information, the measurement of one or some component carriers in a certain multi-carrier packet is not performed in other multi-carrier packets.
  • the data transmission has an impact, and the base station does not need to allocate a measurement gap for the measurement.
  • the base station when the base station performs multi-carrier management according to the component carrier group information, the base station on the same component carrier group is simultaneously activated/deactivated.
  • the present invention further provides a multi-carrier management apparatus, where the apparatus includes: a multi-carrier packet information reporting module, located in the UE, configured to feed back multi-carrier packet information to the base station according to the radio frequency capability of the UE;
  • the multi-carrier management module is located at the base station, and is configured to perform multi-carrier management according to the multi-carrier group information.
  • the multi-carrier group information information module feeds back the multi-carrier group information to the base station by adding/deleting a component carrier completion message;
  • the multi-carrier group information includes: a component carrier group identifier and each component in the component carrier group The identification information of the component carrier; or the component carrier group identifier and the frequency point and physical cell identifier (PCI) information of each component carrier in the component carrier group.
  • PCI physical cell identifier
  • the multi-carrier packet information reporting module feeds back the multi-carrier packet information to the base station by using a UE capability report message;
  • the multi-carrier packet information includes: a component carrier group identifier And a frequency band supported by the component carrier group; or a component carrier group identifier and a frequency band supported by the component carrier group and a bandwidth corresponding to the frequency band; or one or more frequency band information, a bandwidth corresponding to the frequency band, and the frequency band support Band information capable of hetero-band carrier aggregation.
  • the multi-carrier management module performs multi-carrier management according to the component carrier group information, the carrier on the same component carrier group is simultaneously activated/deactivated.
  • the present invention also provides a multi-carrier activation/deactivation method, the method comprising:
  • the base station activates/deactivates all component carriers on the same frequency band according to the correspondence between the frequency band and the component carrier.
  • the base station learns the corresponding relationship between the frequency band and the component carrier according to the protocol specification, or obtains the correspondence between the frequency band and the component carrier by using the multi-carrier packet information fed back by the UE, and according to the Multi-carrier packet information is activated/deactivated for all carriers on the same frequency band.
  • the present invention also provides a multi-carrier activation/deactivation apparatus, the apparatus comprising:
  • a frequency band and carrier relationship maintenance unit configured to acquire and maintain a correspondence between a frequency band and a component carrier;
  • An activation/deactivation unit is configured to activate/deactivate all carriers on the same frequency band according to a correspondence between a frequency band and a carrier.
  • the frequency band and carrier relationship maintenance unit divides each frequency resource according to the protocol specification, and learns the correspondence between the frequency band and the component carrier, the acquired UE capability information, the case where the base station configures the carrier for the UE, and the UE related carrier.
  • the configured feedback information maintains the correspondence between the frequency band and the carrier.
  • the UE feeds back multi-carrier packet information or reports multi-carrier capability information to the base station according to its own radio frequency capability, and the base station performs multi-carrier management based on the multi-carrier packet information or multi-carrier capability information of the UE, especially for the activation/deactivation operation.
  • the base station simultaneously activates/deactivates the carriers on the same CC group to achieve the effect of saving power and not interrupting the data transmission of the UE.
  • FIG. 1 is a schematic diagram of carrier aggregation according to the related art
  • FIG. 2 is a schematic diagram of a radio frequency receiving structure of a UE
  • FIG. 3 is a schematic diagram of another RF receiving structure of a UE
  • FIG. 4 is a schematic diagram of a radio frequency structure and a carrier configuration of a UE according to a method embodiment of the present invention
  • FIG. 5 is a flowchart of a method for a UE to feed back CC packet information to a base station according to a method embodiment of the present invention
  • FIG. 7 is a schematic diagram of a MAC CE format of an active/deactivated carrier according to Embodiment 1 of the present invention
  • FIG. 8 is a flowchart of a UE multi-carrier capability reporting according to Embodiment 2 of the present invention;
  • FIG. 9 is a flowchart of a method for three multi-carrier activation/deactivation according to an embodiment of the method of the present invention.
  • FIG. 10 is a schematic diagram of Embodiment 1 of the apparatus of the present invention.
  • Figure 11 is a schematic view of a second embodiment of the device of the present invention.
  • Figure 12 is a schematic view of a third embodiment of the apparatus of the present invention. detailed description
  • the base station adds a carrier to the UE, if the UE can directly perform data transmission on the added carrier, that is, if the added carrier is in an active state by default; or the base station deletes the carrier that has been configured for the UE; or the base station performs the carrier configured for the UE.
  • Activation/deactivation operation if before adding/activating secondary component carrier X (SCCx), or after deleting/deactivating carrier SCCx, there are other radio transceivers X on the UE responsible for SCCx data transmission.
  • the UE In the working state (ie, in the active state), the UE needs to adjust the center frequency of the radio transceiver device X, adjust the filter settings of the radio transceiver device X, obtain the frequency offset on each activated SCC, etc., and the process needs to be maintained. a period of time. If there is no other active carrier on the radio transceiver X responsible for SCCx data transmission before the carrier SCCx is added/activated, or after the carrier SCCx is deleted/deactivated, the UE needs to turn on the radio transceiver X to obtain each The frequency offset on the SCC is activated, and the process also needs to be maintained for a while. Depending on the UE capabilities, the specific adjustment time can be between a few milliseconds and a few milliseconds.
  • FIG. 2 shows a schematic diagram of a radio receiving structure of the UE.
  • the UE has only one radio receiver (Rxl), CCl and CC3 are two consecutive carriers on the same frequency band (here labeled bandl), assuming that Rxl supports bandl and can support CC1 and CC3 aggregation. If the UE has established a service on cell 1 (the downlink carrier is CC1), when the base station needs the UE to perform the following carrier operations:
  • the base station needs the UE to measure CC3: Since the UE has only one Rx, and Rxl is currently working on CC1, when the UE measures CC3, the UE needs to adjust the center frequency of Rx1 to CC3, thereby causing UE during the measurement of CC3. Interruption of data transmission on CC1.
  • the base station adds the cell x to the UE (the downlink carrier is CCx and the CCx works on the band2): Because the Rxl of the UE is currently working on the band1, the band2 cannot be supported, which will cause the cell to fail.
  • the base station adds the cell 3 to the UE (the downlink carrier is CC3), and assumes that the CC3 is added, it is activated: Because the Rxl of the UE is currently working on CC1, Rxl needs to be adjusted during the adjustment period. The data transmission of the UE is forced to be interrupted.
  • FIG. 3 shows a schematic diagram of another UE's radio frequency receiving structure.
  • the UE has two radio receivers (Rxl and Rx2), CCl and CC3 are two consecutive carriers on band1, and CC2 and CC4 are two consecutive carriers on band2, assuming that both Rxl and Rx2 support both bandl and band2, And can support CCl and CC3 aggregation; support CC2 and CC4 aggregation.
  • CC1 downlink carrier
  • CC3 downlink carrier
  • the base station needs the UE to measure CC2 or CC4: Since Rx2 is not currently activated, the UE can initiate Rx2 to perform measurements on CC2 and CC4, and the measurement process will not have any impact on the current data transmission of the UE.
  • the base station needs to add the cell 2 to the UE (the downlink carrier is CC2), and assume that the CC2 is added, it is activated: Because the Rxl of the UE is currently working on the band1, the UE can only start the Rx2 processing of the data on the cell 2, the process It will not have any impact on the data transmission of the UE currently on CC1.
  • the carrier management fails due to the mismatch of the multi-carrier management of the base station and the actual capability of the UE; or the multi-carrier management of the base station is not fully considered.
  • the ability to the UE will result in an interruption of the UE data transmission.
  • the UE feeds back component carrier (CC) packet information to the base station according to the radio frequency capability of the UE, where the CC packet information represents that each carrier configured by the base station to the UE is in the UE radio.
  • CC packet information represents that each carrier configured by the base station to the UE is in the UE radio.
  • the distribution on the radio unit, the carrier on the same CC packet will be responsible for data reception and/or transmission by the same radio unit in the UE.
  • the carriers on different CC packets will be responsible for data reception and/or by different radio frequency units in the UE. send.
  • the UE adds the CC packet information in the Add/Delete CC Completion message to notify the base station of the distribution of each carrier configured to the UE on the UE radio frequency unit, and the base station performs reasonable multi-carrier management according to the CC group information fed back by the UE.
  • the multi-carrier management specifically includes one or more of multi-carrier measurement, CC addition, CC deletion, CC activation, and CC deactivation.
  • the base station in order to achieve a good power saving effect and not interrupt the data transmission of the UE, the base station simultaneously activates/deactivates the carrier on the same CC packet, which is equivalent to the base station working in the UE. Simultaneous activation/deactivation of carriers on the same radio frequency unit, or a more general case, is equivalent to simultaneous activation/deactivation of carriers on the same frequency band allocated to the UE by the base station.
  • the SCC added by the base station to the UE through RRC signaling is inactive after being configured. After the MAC address is activated by the base station, the data can be sent and received on the SCC.
  • the PCC is CC1 and operates on bandl.
  • the base station adds the configuration of the SCC to the UE.
  • the process of adding a carrier configuration to the UE by the base station is as shown in FIG. 5.
  • the base station notifies the UE of the added SCC, specifically including the CC identification information (CC index) of the SCC, and the frequency point. , Physical Cell Identiy (PCI), and resource configuration information of the SCC.
  • the RRC message of adding/deleting CCs may be a new RRC message or multiplex an existing RRC message.
  • the UE After receiving the information of the added CC, the UE determines the acceptable CC configuration according to its own radio frequency capability, and feeds back the CC packet information to the base station. The UE feeds back the CC packet information to the base station. As shown in step 502 of FIG. 5, in the add/drop component carrier complete message in step 502, the UE notifies the base station of the information of each CC packet, and each CC packet information is identified by the component carrier group (CC group). Index ), the CC information in a specific CC packet includes CC index information, or component Carrier frequency and PCI information.
  • CC group component carrier group
  • FIG. 4 is a diagram showing an example of a radio frequency structure and a carrier configuration of a UE.
  • Example 1 The UE has only one Rx ( Rxl ), Rxl supports bandl and also supports band2 (the same time Rxl can only support one band, the subsequent examples are the same), the maximum supported bandwidth is
  • the base station adds SCC configuration information to the UE, including CC2 on band1, CC3 and CC4 on band2.
  • the UE After receiving the configuration information, the UE determines that the UE is currently working on the band1, and the UE capability cannot accept the configuration of the CC3 and the CC4. Therefore, the UE sends the CC packet information fed back to the base station in the CC message, as shown in FIG. Specifically, CC packet 1 (indexed by CC group Index1;) is included, and CC1 and CC2 are included in CC packet 1. Preferably, the UE may also notify the base station in the Add/Delete CC Complete message that the CC3 and CC4 configurations fail. The reason for the failure is that the UE capability is not allowed.
  • the UE determines that all the CCs configured by the base station to the UE are not acceptable to the UE according to the radio frequency capability of the UE, the UE does not carry any CC packet information in the Add/Delete CC Completion message, or the UE is in the UE.
  • the adding/deleting CC completion message notifies the base station to configure the CC to fail, and at the same time, may also indicate that the reason for the failure is because the UE capability is not allowed.
  • the base station After receiving the CC packet information fed back by the UE, the base station analyzes the CC packet information, and performs reasonable multi-carrier management based on the CC packet information fed back by the UE:
  • the base station can analyze that the capability of the UE cannot support both the band1 and the band2, and therefore, the base station performs the subsequent multi-carrier management process. , to avoid reconfiguring CC3 and CC4 to the UE;
  • the carrier on the same CC packet will be responsible for data reception and/or transmission by the same radio frequency unit in the UE
  • the carriers on different CC packets will be responsible for data reception by different radio frequency units in the UE. / or send, so the base station knows that CC1 and CC2 will work on the same Rx. If CC2 is activated/deactivated frequently, it will be caused on CC1. The interruption of data transmission, the base station will avoid frequent activation/deactivation of CC2 in the subsequent multi-carrier management process;
  • the UE Since the UE only feeds back one packet information, it implicitly indicates that the UE has only one Rx. If the base station needs the UE to perform measurements on CC2, CC3, and CC4, the UE needs to adjust the center frequency to CC2 or according to the configuration of the base station. The use of measurement gaps on CC1 will also cause an interruption in data transmission on CC1. If the UE actively adjusts the center frequency to perform measurement, the base station does not control the UE's specific adjustment time, so the base station will continue to perform data scheduling within the adjustment time, which will result in the loss of the data.
  • the base station may configure a measurement gap for the UE, and the UE implements CC2 and CC3 in the measurement gap.
  • the base station stops data scheduling for the UE, thereby effectively avoiding data loss.
  • Example 2 The UE has two Rx (Rxl and Rx2), both support bandl and supports a maximum bandwidth of 20MHz.
  • the base station adds SCC configuration information to the UE, that is, CC2 on bandl.
  • the UE After receiving the configuration information, the UE determines that the maximum bandwidth of Rx1 and Rx2 can only support 20 MHz, and CC2 must work on Rx2. Therefore, the UE feeds back CC packet information to the base station in the CC message of completion/deletion, as shown in FIG. 6 Specifically, CC packet 1 (indexed by CC group Index1) and CC packet 2 (indexed by CC group Index 2) are included, CC1 includes CC1, and CC packet 2 includes CC2.
  • the base station After receiving the CC packet information fed back by the UE, the base station analyzes the CC packet information, and performs reasonable multi-carrier management based on the CC packet information fed back by the UE:
  • the carrier on the same CC group will be responsible for data reception and/or transmission by the same radio frequency unit in the UE, and the carriers on different CC packets will be responsible for data reception by different radio frequency units in the UE. And/or transmitting, so the base station knows that CC1 and CC2 will work on different Rx, and the base station can activate/deactivate CC2 at any time without CC1. The data transfer on is causing an interruption.
  • the base station Since CC1 and CC2 work on different Rx, if the base station needs the UE to perform measurement on CC2, the UE can enable Rx2 to perform measurement without affecting data transmission on CC1. Therefore, in the subsequent multi-carrier management process, if the UE needs to perform measurement on CC2, the base station may not need to allocate a measurement gap to the UE.
  • Example 3 The UE has two Rx (Rxl and Rx2), both support bandl and band2, and supports a maximum bandwidth of 40MHz.
  • the base station adds SCC configuration information to the UE, including CC2 on band1, CC3 and CC4 on band2.
  • the CC packet information that is fed back to the base station in the Add/Delete CC Complete message is as shown in Example 3 of FIG. 6, and specifically includes the CC packet 1 (indexed by CC group Index1). And CC packet 2 (indexed with CC group Index 2), CC packet 1 includes CC1 and CC2, and CC packet 2 includes CC3 and CC4.
  • the base station After receiving the CC packet information fed back by the UE, the base station analyzes the CC packet information, and performs reasonable multi-carrier management based on the CC packet information fed back by the UE:
  • the carrier on the same CC packet will be responsible for data reception and/or transmission by the same radio frequency unit in the UE
  • the carriers on different CC packets will be responsible for data reception by different radio frequency units in the UE.
  • the base station knows that CC1 and CC2 work on the same Rx of the UE, CC3 and CC4 work on another Rx of the UE. Since CC3 and CC4 work on another Rx, the base station is more in the subsequent CC3 and/or CC4 can be activated/deactivated at any time during carrier management without disrupting data transmission on CC1.
  • CC1 and CC2 will be on the same Rx, which will cause interruption of data transmission on CC1. Therefore, the base station will avoid frequent activation/deactivation of CC2 in the subsequent multi-carrier management process.
  • the base station may configure a measurement gap for the UE on CC1, and when the UE performs measurement on CC2 in the measurement gap, The base station stops the data scheduling on CC1, thereby effectively avoiding data loss. If the UE is required to perform measurements on CC3 and CC4, the UE can start Rx2 for measurement without affecting CC1 and CC2.
  • the CC group index is used to represent each CC group.
  • the specific activation/deactivation method can be If the field corresponding to each CC group Index is set to "value 1", it means that the CC packet is activated, and if it is set to "value 2", it means that the CC packet is deactivated.
  • the specific activated/deactivated MAC CE format is shown in Figure 7.
  • the activation/deactivation MAC CE is represented by 1 byte.
  • the base station can configure at most 5 downlink carriers for the UE.
  • the MAC CE uses the lowest 5 bits (bit) to represent the most.
  • Five CC packets, from bitO to bit4, represent CC group Index1 to CC group Index5, respectively, and the remaining upper three bits are reserved (Reserved, R). If the bit corresponding to the corresponding CC group Index is set to 1, it indicates activation, otherwise it indicates deactivation. Since the UE in FIG. 6 has only two CC packets, the UE receives the activation/deactivation as shown in FIG. When the command is activated, CC2 is activated (CC1 is PCC, it is activated after configuration), and CC3 and CC4 are deactivated.
  • the CC group index is used to represent each CC group.
  • the correspondence between the fields in the MAC CE and the CC group index is pre-agreed by the base station and the UE.
  • the base station and the UE pre-arranged that each CC group Index field is set to "value 1", indicating that the CC packet is activated, and if set to "value 2", Indicates that the CC packet is deactivated.
  • Figure 7 is only a preferred activation/deactivation MAC CE format of the preferred embodiment and does not constitute an undue limitation of the present invention.
  • the examples exemplified in the preferred embodiment are all cases where the base station adds a carrier configuration to the UE.
  • the UE may also provide feedback to the base station in the add/delete component carrier complete message. Deleting the CC packet information of the carrier after the carrier is deleted, or preferably, the UE has notified the base station CC packet information in the feedback message that the base station adds the carrier configuration for the UE, and when the base station needs to delete the carrier, the base station can infer the UE side.
  • the CC packet condition of the remaining carrier so the UE may not need to feed back the CC packet information to the base station in the add/delete component carrier complete message when receiving the message of deleting the carrier.
  • the base station queries the UE for the UE capability, and the UE carries the multi-carrier packet information in the UE capability report message.
  • the specific process is shown in Figure 8:
  • Step 801 The base station queries the UE for the UE capability.
  • Step 802 The UE sends a capability report message to the base station, where the multi-carrier packet information is carried.
  • the specific multi-carrier packet information reported by the UE has the following two representations:
  • the first method includes the frequency band information supported by each Rx of the UE.
  • the preferred one can also carry the maximum bandwidth of each frequency band supported by each Rx.
  • the time length (Rx-retuning time) required for adjusting each Rx can also be carried.
  • the method includes:
  • Packet 1 bandl, bandwidth 40MHz; band2, bandwidth 40MHz; Rx-retuning time;
  • Example 2
  • Group 1 bandl, bandwidth 20MHz; Rx-retuning time
  • Group 2 bandl, bandwidth 20MHz; Rx-retuning time
  • Packet 1 bandl, bandwidth 40MHz; band2, bandwidth 40MHz; Rx-retuning time
  • packet 2 bandl, bandwidth 40MHz; band2, bandwidth 40MHz; Rx-retuning time; Carrier Group Identification (CC group Index) index.
  • CC group Index Carrier Group Identification
  • the second method includes: a frequency band supported by the UE; a bandwidth supported by each frequency band; preferably, the number of consecutive carriers supported by each frequency band may also be included; and preferably, the supported multi-band carrier aggregation supported by each frequency band may also be included. Band information.
  • the number of consecutive carriers refers specifically to the number of consecutive carriers with a bandwidth of x MHz agreed by the base station and the UE.
  • the base station and the UE are agreed to be 20 MHz.
  • the multi-carrier capability information reported by the UE to the base station includes:
  • Bandl bandwidth 40MHz; supported continuous carrier number 2; band2 (indicating that it can perform inter-band carrier aggregation with band2) Band2, bandwidth 40MHz; supported continuous carrier number 2; bandl (indicating that it can perform inter-band carrier aggregation with bandl, since bandl already contains similar information, this option may not be included).
  • the number of consecutive carriers supported implicitly indicates the Rx structure of the UE.
  • the UE In the second example of the second mode, the UE only supports band1, and the bandwidth of the band1 is 20 MHz. If it is 2, the base station is implicitly informed, and the UE has two Rx.
  • the UE sends a capability report message to the base station to notify the base station of the distribution of each carrier configured to the UE on the UE radio frequency unit, and the base station performs reasonable multi-carrier management according to the CC packet information fed back by the UE.
  • the base station performs reasonable multi-carrier management according to the multi-carrier group information reported by the UE, including one or more of the following:
  • the base station can determine the frequency band supported by each Rx of the UE and the bandwidth of each frequency band according to the multi-carrier capability information reported by the UE.
  • the base station configures (increases) the carrier for the UE, it can only allocate to the frequency band supported by the UE. Carrier.
  • the base station can determine the number of Rxs owned by the UE and the frequency bands supported by each Rx according to the multi-carrier capability information reported by the UE. When the base station performs carrier activation/deactivation, the distribution of each carrier on Rx can be fully considered. If the activation/deactivation of carrier X causes a scheduling interruption for carrier y (especially PCC) operating on the same Rx, then In the multi-carrier management over-representation, the base station can avoid frequent activation/deactivation of carrier X; otherwise, if carrier X operates on a separate Rx, the base station can frequently activate/deactivate carrier x.
  • carrier y especially PCC
  • the base station can determine the number of Rxs owned by the UE and the frequency bands supported by each Rx according to the multi-carrier capability information reported by the UE.
  • the base station can fully consider the distribution of each carrier on the Rx. If the measurement carrier X requires the base station to adjust the center frequency of a working Rx, in order to avoid data loss, the base station can configure a measurement gap for the UE to measure the carrier X. Specifically, especially for the activation deactivation operation, in order to achieve a good power saving effect, it is not correct.
  • the data transmission of the UE causes an interruption, and the base station simultaneously activates/deactivates the carrier on the same frequency band allocated to the UE, that is, the base station activates/deactivates the carrier working on the same radio frequency unit in the UE at the same time.
  • the base station simultaneously activates/deactivates the carrier on the same CC packet.
  • the base station when the base station activates/deactivates all the carriers in the same frequency band by using the MAC CE, corresponding to the foregoing manner 1, the base station uses the identifier of the foregoing group information (for example, CC group Index), the first embodiment, and the same in the MAC CE.
  • the correspondence between the field and the CC group Index is pre-agreed by the base station and the UE.
  • the base station uses the above-mentioned frequency band information to represent each packet, and the format of the specific MAC CE is the same as that of the method embodiment 1 shown in FIG. 7.
  • the activation and deactivation of the MAC CE is represented by 1 byte, because of the current carrier aggregation.
  • the base station can configure up to 5 downlink carriers for the UE, so the lowest 5 bits (bit) in the MAC CE represent up to 5 packets (ie, up to 5 frequency bands), and the remaining upper three bits are reserved (Reserved, R).
  • the correspondence between the fields and the bands in the MAC CE is pre-agreed by the base station and the UE. For example, the base station and the UE are scheduled to be from bitO to bit4, and sequentially correspond to the lowest frequency band to the highest frequency band of each frequency band packet reported by the UE.
  • the base station and the UE agree to activate/deactivate the carrier on the same frequency band.
  • a process flow diagram of an embodiment of the method is shown in FIG.
  • Step S901 The base station acquires UE capability information.
  • the base station side can obtain the UE capability information from the core network side, and can also obtain the UE capability information by querying the UE for the UE capability.
  • the specific UE capability information of the UE includes only the frequency bands supported by the UE.
  • the base station configures a carrier for the UE, that is, adds/deletes the SCC for the UE, as the service traffic changes or the signal quality of the current serving cell of the UE changes.
  • the UE judges the acceptable CC configuration according to its own radio frequency capability, and feeds back the add/delete component carrier completion message to the base station. If the UE determines, according to its own radio frequency capability information, CC information that the UE capability cannot accept, the UE may notify the base station UE of the unacceptable CC information in the Add/Delete Component Carrier Complete message.
  • Step S903 The base station activates/deactivates the carrier on the same frequency band.
  • the base station and the UE agree that when performing an activation/deactivation operation, activation/deactivation operations must be performed simultaneously for all carriers on the same frequency band.
  • the base station activates/deactivates all component carriers on the same frequency band according to the correspondence between the frequency band and the component carrier.
  • the base station learns the frequency band of each component carrier allocated to the UE according to the protocol specification, and learns the corresponding relationship between the frequency band and the component carrier; or the base station can also learn the multi-carrier group information fed back by the UE.
  • Corresponding relationship between the frequency band and the component carrier wherein the multi-carrier packet information includes a correspondence relationship between the frequency band and the component carrier.
  • the method described in the first embodiment and the second embodiment of the method may be used, and details are not described herein again.
  • the base station activates/deactivates all carriers on the same frequency band by using the MAC CE.
  • the base station uses the above-mentioned frequency band information to represent each packet, and the format of the specific MAC CE is the same as that of the method embodiment 1 shown in FIG. 7.
  • the activation and deactivation of the MAC CE is represented by 1 byte, because the base station can configure the UE at most in the current carrier aggregation. 5 downlink carriers, so the lowest 5 bits (bit) in the MAC CE represent up to 5 packets (ie, up to 5 bands), and the remaining upper three bits are reserved (Reserved, R).
  • the correspondence between the fields and the band in the MAC CE is pre-agreed by the base station and the UE.
  • the base station and the UE agree from bitO to bit4, which in turn correspond to the lowest frequency band to the highest frequency band among the frequency bands supported by the UE capability.
  • bitO to bit4 which in turn correspond to the lowest frequency band to the highest frequency band among the frequency bands supported by the UE capability.
  • the base station and the UE pre-agreed to perform the activation/deactivation operation.
  • the activation/deactivation operation must be performed simultaneously on all carriers in the same frequency band, which not only achieves good power saving effect, but also does not interrupt the data transmission of the UE, thereby ensuring good backward compatibility and simplifying the base station and The behavior of the UE.
  • Device embodiment 1
  • FIG. 9 is a schematic diagram of an apparatus according to Embodiment 1 of the present invention, where the apparatus includes a multi-carrier grouping information>3 ⁇ 4 module and a multi-carrier management module;
  • the multi-carrier packet information reporting module of the UE is configured to: after receiving the carrier add/delete configuration message sent by the base station, according to the radio frequency capability of the UE, feed back to the base station by adding/removing the component carrier completion message.
  • Carrier group information The multi-carrier management module located at the base station is configured to perform reasonable multi-carrier management according to the multi-carrier group information reported by the UE.
  • the multi-carrier group information reported by the UE includes at least: a component carrier group identifier index and component carrier identifier information; or a component carrier group identifier index, a component carrier frequency point, and PCI information; and the multi-carrier group information represents each carrier configured by the base station to the UE
  • the carriers on the same multi-carrier group will be responsible for data reception and/or transmission by the same radio frequency unit in the UE, and the carriers on different multi-carrier groups will be responsible for different radio frequency units in the UE. Data reception and / or transmission.
  • the multi-carrier management specifically includes one or more of multi-carrier measurement, component carrier addition, component carrier deletion, component carrier activation, and component carrier deactivation.
  • the multi-carrier management module performs multi-carrier management based on the multi-carrier packet information, the carriers on the same multi-carrier packet are simultaneously activated/deactivated.
  • FIG. 10 is a schematic diagram of an apparatus according to Embodiment 2 of the present invention, where the apparatus includes: a multi-carrier capability query request module, a multi-carrier capability upper module, and a multi-carrier management module;
  • the base station obtains the multi-carrier capability of the UE by using an active query
  • the multi-carrier capability query requesting module is configured to send a capability query request to the UE
  • the multi-carrier capability reporting module is configured to receive the capability query request after receiving the capability query request And reporting the multi-carrier group information to the multi-carrier management module by using the capability report message according to the radio frequency capability of the UE
  • the multi-carrier management module is configured to perform multi-carrier management according to the multi-carrier group information of the UE.
  • the multi-carrier packet information of the UE reported by the multi-carrier capability reporting module includes at least: a component carrier group identifier index, one or more frequency band information, and a bandwidth corresponding to the frequency band; or one or more frequency band information, and a bandwidth corresponding to the frequency band. And band information capable of performing isoband carrier aggregation supported by each frequency band.
  • the multi-carrier management specifically includes one or more of multi-carrier measurement, component carrier addition, component carrier deletion, component carrier activation, and component carrier deactivation.
  • the multi-carrier management module performs multi-carrier management according to the multi-carrier packet information of the UE, the carriers on the same frequency band allocated to the UE are simultaneously activated/deactivated.
  • the multi-carrier management module performs reasonable multi-carrier management according to the multi-carrier packet information of the UE. For details, refer to the second embodiment of the method, and details are not described herein again.
  • the apparatus includes: a frequency band and carrier relationship maintenance unit, configured to acquire and maintain a correspondence relationship between a frequency band and a component carrier;
  • An activation/deactivation unit for activating/deactivating all carriers on the same frequency band according to a correspondence between a frequency band and a carrier.
  • the frequency band and carrier relationship maintenance unit obtains UE capability information, and the base station The case where the carrier is configured for the UE and the feedback information about the carrier configuration of the UE maintain the correspondence between the frequency band and the carrier.
  • the frequency band and carrier relationship maintenance unit acquires and maintains a correspondence between a frequency band and a component carrier by using an increase/deletion component carrier completion message that is carried by the UE to the base station and carries the multi-carrier packet information; the multi-carrier group information.
  • the method includes: a component carrier group identifier and identification information of each component carrier in the component carrier group; or a component carrier group identifier and frequency information and PCI information of each component carrier in the component carrier group.
  • the frequency band and carrier relationship maintenance unit acquires and maintains a correspondence between a frequency band and a component carrier by using a UE capability report message that is sent by the UE to the base station and carries the multi-carrier packet information;
  • the multi-carrier group information includes: a component a carrier group identifier and a frequency band supported by the component carrier group; or a component carrier group identifier and a frequency band supported by the component carrier group and a bandwidth corresponding to the frequency band; or one or more frequency band information, a bandwidth corresponding to the frequency band, and the Band information supported by the frequency band that enables isoband carrier aggregation.
  • the UE capability may include the downlink multi-carrier capability of the UE, and may also include the uplink multi-carrier capability of the UE.

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Abstract

本发明公开了一种多载波管理、多载波激活/去激活方法及装置，用于解决多载波系统中，基站的多载波管理与UE实际多载波能力不匹配，导致UE数据传输中断，或多载波管理失败的技术问题。本发明中，UE根据自身的射频能力向基站反馈多载波分组信息或上报多载波能力信息，基站基于UE的多载波分组信息或多载波能力信息进行多载波管理，尤其对于激活/去激活操作，基站对同一个CC分组上的载波同时激活/去激活。通过本发明技术方案，可以达到既省电又不对UE的数据传输造成中断的效果。

Description

一种多载波管理、 多载波激活 /去激活的方法及装置 技术领域
本发明涉及通信领域， 尤其涉及一种多载波管理、 多载波激活 /去激活 方法及装置。 背景技术
长期演进（ Long Term Evolution, LTE ) 系统中， 系统支持的最大传输 带宽为 20MHz。 为向移动用户提供更高的数据速率， 高级长期演进系统 ( Long Term Evolution Advance, LTE-A )提出了载波聚合技术（Carrier Aggregation, CA ), 其目的是为具有相应能力的用户设备 ( User Equipment, UE )提供更大宽带， 提高用户设备的峰值速率。 CA将两个或者更多的分 量载波（Component Carriers, CC )聚合起来支持大于 20MHz, 最大不超过 100MHz的传输带宽。采用载波聚合技术的 LTE-A系统是一种多载波系统。
图 1是根据相关技术的载波聚合的示意图。 进行载波聚合的各个分量 载波在频域上可以是连续的， 也可以是不连续的。 要支持载波聚合， 以使 UE可以同时工作在多个载波上， UE的射频结构需要满足相应的要求。 以 频分双工模式（ Frequency division duplex, FDD ) 下 UE支持下行载波聚合 为例， 若接收两个或两个以上不连续的分量载波， UE需要有两个或两个以 上无线电接收设备（Receiver, Rx )才能同时在多个不连续的分量载波上的 接收数据； 若接收两个或两个以上频域上连续的分量载波， 相对于单载波 系统中最大带宽为 20MHz的无线电接收设备， UE需要有一个最大带宽超 过 20MHz的无线电接收设备才能同时在多个连续的分量载波上接收数据， 或者如果 UE有多个无线电接收设备， UE可以使用该多个无线电接收设备 同时在该多个连续分量载波上接收数据。 同样对于 FDD下 UE支持上行载波聚合， 若 UE同时在两个或两个以 上不连续的分量载波上发送数据， UE需要有两个或两个以上无线电发送设 备（ Transmitter, Tx ); 若 UE同时在两个或两个以上连续的分量载波上发 送数据， UE需要有一个最大带宽超过 20MHz的无线电发送设备或者两个 或两个以上的无线电发送设备。 时分双工模式（ time division duplex, TDD ) 下 UE支持载波聚合原理也一样。以上 Receiver和 Transmitter在 UE上实现 时可能归结为同一个设备， 即统一的无线电收发设备 ( transceiver ), 或称无 线电射频单元。
引入载波聚合技术后， 基站（evolved NodeB , eNB )可以为 UE配置 至多 5个小区。 UE在一个小区上建立了业务后， 因 UE业务流量增加或者 基于基站的无线资源管理（Radio Resource Management, RRM ) 需求， 基 站可以通过无线资源控制 （Radio Resource Control, RRC )信令为 UE增加 新的小区配置， 具体的包括配置新增小区的上、 下行载波相关的配置信息。 相反的， 因 UE业务流量减少， 或者当前配置给 UE的小区信号质量变差， 或者基于基站的 RRM管理， 基站可以通过 RRC信令删除已经配置给 UE 的小区， 具体的包括所删除小区的上、 下行载波的配置信息。 以上增加、 删除小区配置的过程可以同时发生。
在上述增加或者删除小区配置的过程中， 基站会通过显式的配置或者 按照协议约定为 UE配置一个主月良务小区（ Primary serving cell, Pcell ), Pcell 所工作的下行载波称为下行主载波 ( Downlink Primary Component Carrier, DL PCC ) , Pcell 所工作的上行载波称为上行主载波 （ Uplink Primary Component Carrier, UL PCC ), 基站为 UE配置的 Pcell之外的其他小区称 为辅服务小区（Second serving cell, Scell ), Scdl所工作的下行载波称为下 行辅载波 ( Downlink Secondary Component Carrier, DL SCC ), Scell所工作 的上行载波称为上行辅载波 ( Uplink Secondary Component Carrier , UL SCC )。
以上通过 RRC信令为 UE配置多个小区， 即 UE工作在多个载波上， UE需要使用带宽超过 20MHz的无线电收发设备或者使用多个无线电收发 设备， 将大大增加 UE的电池耗电量。 因此考虑业务的突发特点， 虽然 UE 工作在最高速率最多可能使用多至 5个载波的带宽， 但是在突发间隙， UE 的实际业务流量很少或者接近于零，此时如果 UE还继续在多个载波上接收 /发送数据， 将会导致较高的功率开销。 因此为了延长 UE的工作时间， 关 闭不必要开启的无线电收发设备， 减少不必要的电池消耗， 在上述增加 /减 少小区配置 （载波配置） 的基础上， 可以引入载波激活 /去激活机制。 一个 小区中的下行载波和上行载波可以独立激活 /去激活。 基站通过显式媒体接 入控制 （ Medium Access Control, MAC )命令通知或通过约定的隐式规则 激活 /去激活辅载波， 为了保证通信的连续性， 主载波一旦配置即激活， 即 激活 /去激活机制只针对辅载波执行。
UE 只在激活的下行载波上进行数据接收， 如物理下行控制信道 ( Physical Downlink Control Channel, PDCCH )的监听； 在去激活的下行载 波上， UE 不监听 PDCCH信道， 也不接收物理下行共享信道（Physical Downlink Shared Channel , PDSCH )上的数据， 从而达到省电的目的。
UE只在激活的上行载波上发送数据； 在去激活的上行载波上， UE停 止发送上行数据，包括停止发送上行参考信号（ Sounding Reference Symbols, SRS ),停止在物理上行控制信道（ Physical Uplink Control Channel, PUCCH ) 上发送数据， 停止在物理上行共享信道（PUSCHPhysical Uplink Shared Channel, PUSCH )上发送数据等。
实现高效的大宽带、 高速率数据通信，基站基于 UE提供的多载波测量 信息以及合理的 RRM管理算法， 可以命令 UE增加载波， 删除载波， 激活 载波， 去激活载波实现对多载波的管理。 然而支持载波聚合， UE的射频结 构需要满足相应的聚合要求， 基站的多载波管理如果与 UE 实际能力不匹 配， 将导致 UE数据传输中断， 或者导致多载波管理失败。 发明内容
本发明的发明目的在于提供一种多载波管理方法及装置， 用于解决多 载波系统中， 基站的多载波管理与 UE实际多载波能力不匹配， 导致 UE数 据传输中断， 或多载波管理失败的技术问题。
为实现本发明目的， 基于本发明的实施例， 本发明公开了一种多载波 管理方法， 该方法包括：
基站接收用户设备 ( UE )反馈的多载波分组信息， 根据所述多载波分 组信息进行多载波管理。
进一步地， UE向基站反馈多载波分组信息的方式具体为：
UE在接收到基站的增加 /删除分量载波的消息时， 向基站反馈增加 /删 除分量载波完成消息； 所述增加 /删除分量载波完成消息中携带所述多载波 分组信息。 所述多载波分组信息包含： 分量载波组标识和该分量载波组内 各分量载波的标识信息； 或分量载波组标识和该分量载波组内各分量载波 的频点和物理小区标识（PCI )信息。
进一步地， UE向基站反馈多载波分组信息的方式具体为：
基站向 UE发送 UE能力查询请求； UE向基站反馈 UE能力上报消息， 所述 UE能力上 ·^艮消息中携带所述多载波分组信息。所述多载波分组信息包 含： 分量载波组标识和该分量载波组支持的频带； 或分量载波组标识和该 分量载波组支持的频带及所述频带对应的带宽； 或一个或多个频带信息、 所述频带对应的带宽及所述频带所支持的能进行异频带载波聚合的频带信 息。
进一步地，所述多载波分组信息表征基站配置给 UE的各个分量载波在 UE 无线电射频单元上的分布情况， 同一个多载波分组上的分量载波将由 UE内同一个无线电射频单元负责数据接收和 /或发送，不同多载波分组上的 分量载波将由 UE内不同的无线电射频单元负责数据接收和 /或发送。
进一步地， 所述基站根据所述多载波分组信息进行多载波管理包含以 下一项或多项：
( 1 )基站根据所述多载波分组信息， 避免向 UE配置 UE能力不支持 的分量载波；
( 2 )当基站根据所述多载波分组信息获知在同一个无线电接^/发送设 备上， 如果频繁激活 /去激活某个或某些分量载波， 将造成对主载波上数据 传输的中断， 则基站将避免频繁激活 /去激活所述某个或某些分量载波；
( 3 ) 当基站根据所述多载波分组信息获知 UE 只有一个无线电接收 / 发送设备，基站如果需要对配置的分量载波实施测量，则基站为 UE配置测 量间隙， UE在测量间隙内实施对分量载波的测量， 基站在测量间隙内停止 对 UE进行数据调度， 以避免数据的丟失；
( 4 )当基站根据所述多载波分组信息获知 UE有多个无线电接^/发送 设备， 对某个多载波分组进行激活 /去激活不会对其它多载波分组内的数据 传输造成影响， 则基站根据需要随时对所述多载波分组进行激活 /去激活操 作；
( 5 )当基站根据所述多载波分组信息获知 UE有多个无线电接^/发送 设备， 对某个多载波分组内的某个或某些分量载波进行测量不会对其它多 载波分组内的数据传输造成影响， 则基站不需为所述测量分配测量间隙。
进一步地， 基站根据所述分量载波分组信息进行多载波管理时， 对同 一个分量载波分组上的载波同时激活 /去激活。
基于上述方法， 本发明还提出一种多载波管理装置， 该装置包括： 多载波分组信息上报模块， 位于 UE, 用于根据 UE的射频能力， 向基 站反馈多载波分组信息； 多载波管理模块， 位于基站， 用于根据所述多载波分组信息进行多载 波管理。
进一步地， 所述多载波分组信息上^艮模块通过增加 /删除分量载波完成 消息向基站反馈所述多载波分组信息； 所述多载波分组信息包含： 分量载 波组标识和该分量载波组内各分量载波的标识信息； 或分量载波组标识和 该分量载波组内各分量载波的频点和物理小区标识（PCI )信息。
进一步地，所述多载波分组信息上报模块在接收到基站发送的 UE能力 查询请求后，通过 UE能力上报消息向基站反馈所述多载波分组信息； 所述 多载波分组信息包含： 分量载波组标识和该分量载波组支持的频带； 或分 量载波组标识和该分量载波组支持的频带及所述频带对应的带宽； 或一个 或多个频带信息、 所述频带对应的带宽及所述频带所支持的能进行异频带 载波聚合的频带信息。
进一步地， 所述多载波管理模块根据所述分量载波分组信息进行多载 波管理时， 对同一个分量载波分组上的载波同时激活 /去激活。
本发明还提供一种多载波激活 /去激活方法， 该方法包括：
基站根据频带与分量载波的对应关系， 对同一频带上的所有分量载波 激活 /去激活。
进一步地， 所述基站根据协议规范对各个频率资源的划分， 获知所述 频带与分量载波的对应关系，或者通过 UE反馈的多载波分组信息获知所述 频带与分量载波的对应关系， 并根据所述多载波分组信息， 对同一频带上 的所有载波激活 /去激活。
基于上述多载波激活 /去激活方法， 本发明还提出一种多载波激活 /去激 活装置， 该装置包括：
频带与载波关系维护单元， 用于获取和维护频带与分量载波之间的对 应关系； 激活 /去激活单元， 用于根据频带与载波的对应关系对同一频带上的所 有载波激活 /去激活。
进一步地， 所述频带与载波关系维护单元根据协议规范对各个频率资 源的划分，获知所述频带与分量载波的对应关系，通过获取的 UE能力信息、 基站为 UE配置载波的情况及 UE有关载波配置的反馈信息维护频带与载波 的对应关系。
本发明中， UE根据自身的射频能力向基站反馈多载波分组信息或上报 多载波能力信息，基站基于 UE的多载波分组信息或多载波能力信息进行多 载波管理， 尤其对于激活 /去激活操作， 基站对同一个 CC分组上的载波同 时激活 /去激活， 以达到既省电又不对 UE的数据传输造成中断的效果。 附图说明
图 1是根据相关技术的载波聚合示意图；
图 2是一种 UE的射频接收结构示意图；
图 3是又一种 UE的射频接收结构示意图；
图 4为本发明方法实施例一 UE的射频结构及载波配置示例图； 图 5为本发明方法实施例一 UE向基站反馈 CC分组信息的流程图； 图 6为本发明方法实施例一 UE向基站反馈的 CC分组信息示例图； 图 7为本发明方法实施例一激活 /去激活载波的 MAC CE格式示意图； 图 8为本发明方法实施例二 UE多载波能力上报流程图；
图 9为本发明方法实施例三多载波激活 /去激活方法流程图；
图 10为本发明装置实施例一的示意图；
图 11为本发明装置实施例二的示意图；
图 12为本发明装置实施例三的示意图。 具体实施方式
基站为 UE增加载波,若 UE在所增加的载波上可以直接进行数据传输， 即若增加的载波默认为激活的状态； 或者基站删除已经配置给 UE的载波； 或者基站对配置给 UE的载波进行激活 /去激活操作， 如果在增加 /激活辅载 Ά X ( Secondary Component Carrier x, SCCx )之前， 或者在删除 /去激活载 波 SCCx之后， UE上负责 SCCx数据传输的无线电收发设备 X上还有其他 处于工作状态（即处于激活状态）的载波， 则 UE需要调整无线电收发设备 X的中心频点， 调整无线电收发设备 X的滤波器设置， 获取各个激活 SCC 上的频率偏移等， 该过程需要维持一段时间。 如果在增加 /激活载波 SCCx 之前， 或者在删除 /去激活载波 SCCx之后， UE上负责 SCCx数据传输的无 线电收发设备 X上没有其他处于激活状态的载波，则 UE需要开启无线电收 发设备 X , 获取各个激活 SCC上的频率偏移等， 该过程同样需要维持一段 时间。 视 UE能力不同， 具体调整时间可以在零点几毫秒到几毫秒之间。
以 UE下行接收为例， 如图 2显示了一种 UE的射频接收结构示意图。 该 UE只有一个无线电接收机 ( Rxl ), CCl和 CC3为同一频带 （此处标记 为 bandl )上的两个连续载波， 假设 Rxl支持 bandl , 且可以支持 CC1和 CC3聚合。 如果 UE已经在小区 1 (下行载波为 CC1 )上建立了业务， 当基 站需要 UE进行以下载波操作时：
1、 若基站需要 UE测量 CC3: 因 UE只有一个 Rx, 且 Rxl当前工作在 CC1上， UE测量 CC3时， UE需要把 Rxl的中心频点调整到 CC3上， 从 而导致在测量 CC3的期间， UE在 CC1上数据传输的中断。
2、若基站为 UE增加小区 x (下行载波为 CCx, CCx工作在 band2上）： 因 UE的 Rxl当前工作在 bandl上，无法支持 band2,将导致增加小区失败。
3、 若基站为 UE增加小区 3 (下行载波为 CC3 ), 且假设 CC3增加了 即激活： 因 UE的 Rxl当前工作在 CC1上， Rxl需要进行调整， 在调整期 间， UE的数据传输被迫中断。
如图 3显示了另一种 UE的射频接收结构示意图。该 UE具有两个无线 电接收机 ( Rxl和 Rx2 ), CCl和 CC3为 bandl上的两个连续载波， CC2 和 CC4为 band2上的两个连续载波，假设 Rxl和 Rx2均即支持 bandl也支 持 band2, 且可以支持 CCl和 CC3聚合； 支持 CC2和 CC4聚合。 如果 UE 已经在小区 1 (下行载波为 CC1 )和小区 3 (下行载波为 CC3 )上建立了业 务， 其中 CC1激活， CC3未激活， 当基站需要 UE进行以下载波操作时：
1、 若基站需要 UE测量 CC2或 CC4: 因 Rx2当前未启动， UE可以启 动 Rx2对 CC2和 CC4实施测量，该测量过程不会对 UE当前的数据传输造 成任何影响。
2、 若基站需要激活 CC3: 因 UE的 Rxl当前工作在 CC1上， Rxl需要 进行调整， 在调整期间， UE的数据传输被迫中断。
3、 若基站需要为 UE增加小区 2 (下行载波为 CC2 ), 且假设 CC2增 加了即激活： 因 UE的 Rxl 当前工作在 bandl上， 因此 UE只能启动 Rx2 处理小区 2上的数据， 该过程不会对 UE当前在 CC1上的数据传输造成任 何影响。
从图 2和图 3的分析可见， 在多载波管理过程中， 某些情况下因基站 的多载波管理与 UE实际能力不匹配，将导致载波管理失败； 或者因基站的 多载波管理没有充分考虑到 UE的能力， 将导致 UE数据传输的中断。 采用 本发明专利的多载波管理方法， 可以在一定程度上减少载波管理导致的 UE 数据传输的中断， 有效避免载波管理失败。 以下举优选实施例详细说明本 发明专利。
方法实施例一
该实施例中， UE根据 UE的射频能力， 向基站反馈分量载波（ CC )分 组信息， 所述 CC分组信息表征了基站配置给 UE的各个载波在 UE无线电 射频单元上的分布情况， 同一个 CC分组上的载波将由 UE内同一个无线电 射频单元负责数据接收和 /或发送， 不同 CC分组上的载波将由 UE内不同 的无线电射频单元负责数据接收和 /或发送。 UE通过在增加 /删除 CC完成 消息中增加 CC分组信息， 通知基站其配置给 UE的各个载波在 UE无线电 射频单元上的分布情况， 基站根据 UE反馈的上述 CC分组信息， 进行合理 的多载波管理， 所述的多载波管理具体包括多载波测量、 CC增加、 CC删 除、 CC激活和 CC去激活中的一项或多项。 具体的， 尤其对于激活 /去激活 操作， 为了达到良好的省电效果又不对 UE的数据传输造成中断，基站对同 一个 CC分组上的载波同时激活 /去激活， 即相当于是基站对 UE内工作在 同一无线电射频单元上的载波同时激活 /去激活， 或者说比较普遍的情况相 当于是基站对分配给 UE的同一频带上的载波同时激活 /去激活。
本实施例中除了 PCC之外， 基站通过 RRC信令为 UE增加的 SCC在 配置完成后都默认为未激活状态，需要通过基站后续的 MAC命令激活后才 能在 SCC上进行数据收发。
本实施例中， PCC为 CC1 , 工作在 bandl上。 UE在 CC1所在的小区 上建立了业务后， 基站为 UE增加 SCC的配置。 基站为 UE增加载波配置 的流程如图 5所示， 如图 501所示增加 /删除 CC的步驟中， 基站通知 UE 所增加的 SCC, 具体的包括 SCC的 CC标识信息（CC index )、 频点、 物理 小区标识（Physical Cell Identiy, PCI ), 以及 SCC的资源配置信息。 增加 / 删除 CC的 RRC消息可以是新增的 RRC消息，或者复用现有的 RRC消息。
UE接收到增加 CC的信息后， 根据自身的射频能力， 判断可以接受的 CC配置， 并向基站反馈 CC分组信息。 UE向基站反馈 CC分组信息如图 5 步驟 502所示，在步驟 502中的增加 /删除分量载波完成消息中， UE通知基 站各个 CC分组的信息， 各个 CC分组信息用分量载波组标识（CC group Index ) 索引， 具体的 CC分组内的 CC信息包括 CC index信息， 或者分量 载波频点和 PCI信息。
如图 4一种 UE的射频结构及载波配置示例图所示。
示例 1: UE只有一个 Rx ( Rxl ), Rxl支持 bandl , 也支持 band2 (同 一时刻 Rxl 只能支持一个 band, 后续示例同此说明）， 支持的最大带宽为
40MHz。
基站为 UE增加 SCC配置信息，包括 bandl上的 CC2, band2上的 CC3 和 CC4。
UE接收到配置信息后， 判断 UE当前工作在 bandl上， UE能力无法 接受 CC3和 CC4的配置，故 UE在增加 /删除 CC完成消息中向基站反馈的 CC分组信息，如图 6示例 1所示，具体的包括 CC分组 1(用 CC group Indexl 索引；)， CC分组 1中包括 CC1和 CC2。优选的， UE还可以在增加 /删除 CC 完成消息中通知基站， CC3和 CC4配置失败， 失败原因是 UE能力不允许。
需要说明的是， 如果 UE根据自身的射频能力， 判断基站配置给 UE的 所有 CC, UE均无法接受， 则 UE在所述增加 /删除 CC完成消息中不携带 任何 CC分组信息， 或者， UE在所述增加 /删除 CC完成消息中通知基站配 置 CC失败， 于此同时还可以说明失败原因是因为 UE能力不允许。
基站接收到 UE反馈的 CC分组信息后， 对 CC分组信息分析后， 基于 UE反馈的 CC分组信息进行合理的多载波管理：
( 1 )由于反馈的分组信息中只包括 bandl上的 CC分组，而未包括 band2 上的 CC分组， 基站可分析获知 UE能力不能同时支持 bandl和 band2, 因 此，基站在后续的多载波管理过程中，避免再向该 UE重新配置 CC3和 CC4;
( 2 ) 由于， 本发明约定， 同一个 CC分组上的载波将由 UE内同一个 无线电射频单元负责数据接收和 /或发送， 不同 CC分组上的载波将由 UE 内不同的无线电射频单元负责数据接收和 /或发送， 因此基站获知 CC1 和 CC2将工作在相同的 Rx上， 如果频繁激活 /去激活 CC2, 将造成对 CC1上 数据传输的中断， 于是， 基站在后续的多载波管理过程中， 将避免频繁激 活 /去激活 CC2;
( 3 ) 由于， UE只反馈了一个分组信息， 隐含指示 UE只有一个 Rx, 如果基站需要 UE对 CC2, CC3, CC4实施测量， 那么 UE需要调整中心频 点到 CC2上或者根据基站的配置在 CC1上采用测量间隙，也将造成对 CC1 上数据传输的中断。 如果 UE主动调整中心频点进行测量， 基站无从掌控 UE具体的调整时间， 故基站将继续在调整时间内进行数据调度， 将导致所 述数据的丟失。 因此， 基站在后续的多载波管理过程中， 如果需要 UE对 CC2, CC3, CC4实施测量， 为了避免不必要的数据丟失， 基站可以为 UE 配置测量间隙， UE在测量间隙内实施对 CC2, CC3, CC4的测量时， 基站 停止对 UE进行数据调度， 从而有效的避免了数据的丟失。
示例 2: UE有两个 Rx ( Rxl和 Rx2 ), 均支持 bandl , 支持的最大带宽 为 20MHz。
基站为 UE增加 SCC配置信息， 即 bandl上的 CC2。
UE接收到配置信息后，判断 Rxl和 Rx2的最大带宽仅能支持 20MHz, CC2必须工作在 Rx2上， 故 UE在增加 /删除 CC完成消息中向基站反馈的 CC分组信息，如图 6示例 2所示，具体的包括 CC分组 1(用 CC group Indexl 索引）和 CC分组 2 (用 CC group Index2索引）， CC分组 1中包括 CC1 , CC分组 2包括 CC2。
基站接收到 UE反馈的 CC分组信息后， 对 CC分组信息分析后， 基于 UE反馈的 CC分组信息进行合理的多载波管理：
( 1 )、 由于， 本发明约定， 同一个 CC分组上的载波将由 UE内同一个 无线电射频单元负责数据接收和 /或发送， 不同 CC分组上的载波将由 UE 内不同的无线电射频单元负责数据接收和 /或发送， 因此基站获知 CC1 和 CC2将工作在不同的 Rx上， 基站可以随时激活 /去激活 CC2而不会对 CC1 上的数据传输造成中断。
( 2 )、 由于， CC1和 CC2工作在不同的 Rx上， 如果基站需要 UE实 施对 CC2的测量， UE可以启用 Rx2进行测量， 而不会影响 CC1上的数据 传输。 因此， 基站在后续的多载波管理过程中， 如果需要 UE对 CC2实施 测量， 可以不需要为 UE分配测量间隙。
示例 3: UE有两个 Rx ( Rxl和 Rx2 ), 均支持 bandl和 band2, 支持的 最大带宽为 40MHz。
基站为 UE增加 SCC配置信息，包括 bandl上的 CC2, band2上的 CC3 和 CC4。
UE接收到配置信息后， 判断可以接受所有 SCC的配置， 在增加 /删除 CC完成消息中向基站反馈的 CC分组信息如图 6示例 3所示， 具体的包括 CC分组 1 (用 CC group Indexl索引）和 CC分组 2 (用 CC group Index2 索引）， CC分组 1中包括 CC1和 CC2, CC分组 2包括 CC3和 CC4。
基站接收到 UE反馈的 CC分组信息后， 对 CC分组信息分析后， 基于 UE反馈的 CC分组信息进行合理的多载波管理：
( 1 ) 由于， 本发明约定， 同一个 CC分组上的载波将由 UE内同一个 无线电射频单元负责数据接收和 /或发送， 不同 CC分组上的载波将由 UE 内不同的无线电射频单元负责数据接收和 /或发送， 因此基站获知 CC1 和 CC2工作在 UE的同一个 Rx上， CC3和 CC4工作在 UE的另一个 Rx上， 由于 CC3和 CC4工作在另个一个 Rx上， 因此， 基站在后续的多载波管理 过程中可以随时激活 /去激活 CC3和 /或 CC4而不会对 CC1上的数据传输造 成中断。但是如果频繁激活 /去激活 CC2,由于 CC1与 CC2在同一个 Rx上， 将造成对 CC1上数据传输的中断， 因此，基站在后续的多载波管理过程中， 将避免频繁激活 /去激活 CC2。
( 2 )、 如果基站需要 UE对 CC2实施测量， Rxl需要调整中心频点到 CC2上或者 UE需要根据基站的配置在 CC1上采用测量间隙，将造成对 CC1 上数据传输的中断。 如果 UE主动调整中心频点进行测量， 基站无从掌控 UE具体的调整时间， 故基站将继续在调整时间内进行数据调度， 将导致所 述数据的丟失。 因此， 基站在后续的多载波管理过程中， 如果需要 UE对 CC2进行测量， 为了避免不必要的数据丟失， 基站可以在 CC1上为 UE配 置测量间隙， UE在测量间隙内实施对 CC2的测量时， 基站停止在 CC1上 的数据调度， 从而有效的避免了数据丟失； 如果需要 UE对 CC3和 CC4实 施测量， UE可以启动 Rx2进行测量， 不会影响到 CC1和 CC2。
具体的， 基站用 MAC CE ( Control Elements, 控制单元 )对同一个 CC 分组上的所有载波进行激活 /去激活时， 用 CC group Index表征各个 CC分 组， 具体的实现激活 /去激活的方式可以为， 各个 CC group Index所对应的 字段如果设置成"值 1", 则表示激活该 CC分组， 反之如果设置成"值 2", 则表示去激活该 CC分组。 以图 6示例 3所示的 CC分组信息为例， 具体的 激活 /去激活的 MAC CE格式参考图 7所示。 图 7中，激活 /去激活 MAC CE 用 1个字节表示，因现阶段载波聚合中基站至多可以为 UE配置 5个下行载 波， 因此该 MAC CE中用最低的 5个比特（bit )表示最多 5个 CC分组， 从 bitO到 bit4, 分别表示 CC group Indexl到 CC group Index5, 剩余的高三 位保留（Reserved, R )。 如果相应的 CC group Index所对应的位如果设置成 1 , 则表示激活， 否则表示去激活， 因图 6示例 3中 UE只有两个 CC分组， 因此 UE接收到如图 7所示的激活 /去激活命令时，激活 CC2 ( CC1是 PCC, 配置后即处于激活状态）， 去激活 CC3和 CC4。
基站用 MAC CE对同一个 CC分组上的所有载波进行激活 /去激活时， 用 CC group Index表征各个 CC分组， MAC CE中各个字段与 CC group Index 之间的对应关系由基站和 UE预先约定； 同时基站和 UE预先约定各个 CC group Index字段设置成"值 1",表示激活该 CC分组，反之如果设置成"值 2", 表示去激活该 CC 分组。 图 7仅是本优选实施例的一种优选激活 /去激活 MAC CE格式而已， 并不能构成对本发明的不当限定。
需要说明的是，本优选实施例中所例举的示例均是基站为 UE增加载波 配置的情况， 当基站为 UE删除载波配置时， UE也可以在增加 /删除分量载 波完成消息中向基站反馈删除载波后剩余载波的 CC 分组信息， 或者优选 的， 由于 UE在接收到基站为 UE增加载波配置的反馈消息中已经通知了基 站 CC分组信息， 当基站需要删除载波时， 基站可以推断出 UE侧剩余载波 的 CC分组情况， 因此 UE在接收到删除载波的消息时， 可以不需要再在增 加 /删除分量载波完成消息中向基站反馈 CC分组信息。 方法实施例二
该实施例中， UE在一个小区上建立了 RRC连接之后， 基站向 UE查 询 UE能力， UE在 UE能力上报消息中携带多载波分组信息。 具体流程如 图 8所示：
步驟 801: 基站向 UE查询 UE能力；
步驟 802: UE向基站发送能力上报消息， 其中携带多载波分组信息。 具体的 UE上报的多载波分组信息有以下两种表示方式：
方式一、 具体的包括 UE各个 Rx上支持的频带信息； 优选的还可以携 带各个 Rx支持的各个频带上的最大带宽； 优选的还可以携带调整各个 Rx 所需要的时长（ Rx-retuning time )。
以图 4所示的 UE射频结构为例， 利用方式一， UE向基站上报的多载 波分组信息中， 包括：
示例 1:
分组 1: bandl , 带宽 40MHz; band2, 带宽 40MHz; Rx-retuning time; 示例 2:
分组 1: bandl , 带宽 20MHz; Rx-retuning time; 分组 2: bandl , 带宽 20MHz; Rx-retuning time;
示例 3:
分组 1 : bandl , 带宽 40MHz; band2, 带宽 40MHz; Rx-retuning time; 分组 2: bandl , 带宽 40MHz; band2, 带宽 40MHz; Rx-retuning time; 以上示例中各分组信息用一个标识索引， 如用分量载波组标识 （CC group Index )索引。 采用该种方式表示 UE的多载波能力时， 各分组信息表 征了基站配置给 UE的各个载波在 UE无线电射频单元上的分布情况， 同一 个分组上的载波将由 UE内同一个无线电射频单元负责数据接收和 /或发送， 不同分组上的载波将由 UE内不同的无线电射频单元负责数据接收和 /或发 送。
方式二、 具体的包括 UE支持的频带； 各个频带上支持的带宽； 优选的 还可以包括各个频带支持的连续载波的个数； 优选的还可以包括各个频带 所支持的能进行异频带载波聚合的频带信息。
所述连续载波的个数特指基站和 UE约定的带宽为 xMHz的连续载波的 个数， 如本优选实施例中基站和 UE约定为 20MHz。
以图 4所示的 UE射频结构为例， 利用方式二， UE向基站上报的多载 波能力信息中， 包括：
示例 1 :
bandl , 带宽 40MHz; 支持的连续载波数 2;
band2, 带宽 40MHz; 支持的连续载波数 2;
示例 2:
bandl , 带宽 20MHz; 支持的连续载波数 2;
示例 3:
bandl , 带宽 40MHz; 支持的连续载波数 2; band2 (表示可以与 band2 进行异频带载波聚合） band2, 带宽 40MHz; 支持的连续载波数 2; bandl (表示可以与 bandl 进行异频带载波聚合， 因 bandl 中已经包含了类似信息， 故该选项也可以 不包含）。
UE上报多载波分组信息方式二中， 支持的连续载波数隐含表示了 UE 的 Rx结构， 比如上述方式二的示例 2中， UE只支持 bandl , bandl的带宽 为 20MHz; 支持的连续载波数却为 2, 则隐式告知了基站， UE有两个 Rx。
UE通过向基站发送能力上报消息， 通知基站其配置给 UE的各个载波 在 UE无线电射频单元上的分布情况， 基站根据 UE反馈的上述 CC分组信 息， 进行合理的多载波管理。
该实施例中，基站根据 UE上报的多载波分组信息进行合理的多载波管 理包括以下一项或多项：
( 1 )基站根据 UE上报的多载波能力信息，可以判断 UE每个 Rx上支 持的频带和各频带的带宽， 基站在为 UE配置（增加）载波时， 只能分配给 UE能力支持的频带上的载波。
( 2 )基站根据 UE上报的多载波能力信息， 可以判断 UE所拥有的 Rx 数量， 以及各个 Rx 上支持的频带。 当基站进行载波激活 /去激活时， 可以 充分考虑各个载波在 Rx上的分布情况， 如果激活 /去激活载波 X会对工作 在相同 Rx上的的载波 y (尤其是 PCC )产生调度中断， 那么基站在多载波 管理过称中， 可以避免频繁激活 /去激活载波 X； 否则如果载波 X工作在一 个独立的 Rx上， 那么基站可以频繁激活 /去激活载波 x。
( 3 )基站根据 UE上报的多载波能力信息， 可以判断 UE所拥有的 Rx 数量， 以及各个 Rx上支持的频带。 当基站需要 UE对载波 X进行测量时， 基站可以充分考虑各个载波在 Rx上的分布情况。如果测量载波 X需要基站 调整一个正在工作的 Rx的中心频点， 为了避免数据丟失， 基站可以为 UE 配置测量间隙以测量载波 X。 具体的， 尤其对于激活去激活操作， 为了达到良好的省电效果又不对
UE的数据传输造成中断， 基站对分配给 UE的同一频带上的载波同时激活 /去激活， 即相当于是基站对 UE内工作在同一无线电射频单元上的载波同 时激活 /去激活。 对于上述方式一， 也即基站对同一个 CC分组上的载波同 时激活 /去激活。
具体的，基站用 MAC CE对同一频带上的所有载波进行激活 /去激活时， 对应于上述方式一， 基站用上述分组信息的标识（比如 CC group Index )表 实施例一， 同样 MAC CE中各个字段与 CC group Index之间的对应关系由 基站和 UE预先约定。对应于上述方式二，基站用上述频带信息表征需要各 个分组， 具体 MAC CE的格式同方法实施例一图 7 所示， 激活、 去激活 MAC CE用 1个字节表示， 因现阶段载波聚合中基站至多可以为 UE配置 5 个下行载波， 因此该 MAC CE中用最低的 5个比特（bit )表示最多 5个分 组（即最多 5个频带）， 剩余的高三位保留 （Reserved, R )。 MAC CE中各 个字段与 band之间的对应关系由基站和 UE预先约定， 比如基站和 UE约 定从 bitO到 bit4,依次对应 UE所上报的各个频带分组中从最低频带到最高 频带。 方法实施例三
本方法实施例中， 基站和 UE约定， 对同一频带上的载波激活 /去激活。 如图 9给出了本方法实施例的处理流程图。
步驟 S901: 基站获取 UE能力信息。
基站侧可从核心网侧获取到 UE的能力信息， 也可通过向 UE查询 UE 能力获取 UE能力信息， 具体的 UE能力信息中 UE的射频能力部分仅包括 UE所支持的各个频带 （band ) 的信息， 即 UE所支持的各个频带的标识信 步驟 S902: 基站为 UE配置载波。
当 UE在一个小区上建立了业务后，随着业务流量改变或者 UE当前服 务小区信号质量的改变， 基站为 UE配置载波， 即为 UE增加 /删除 SCC。 UE根据自身的射频能力， 判断可以接受的 CC配置， 向基站反馈增加 /删除 分量载波完成消息。 如果 UE根据自身的射频能力信息， 判断有 UE能力无 法接受的 CC信息， UE可以在增加 /删除分量载波完成消息中通知基站 UE 能力无法接受的 CC的信息。
步驟 S903: 基站对同一频带上的载波进行激活 /去激活。
基站和 UE约定， 执行激活 /去激活操作时， 必须对同一频带上的所有 载波同时执行激活 /去激活操作。
具体的， 基站根据频带与分量载波的对应关系， 对同一频带上的所有 分量载波激活 /去激活。 其中基站根据协议规范对各个频率资源的划分， 获 知分配给 UE的各个分量载波所属的频带，即获知所述频带与分量载波的对 应关系；或基站也可通过 UE反馈的多载波分组信息获知所述频带与分量载 波的对应关系， 所述多载波分组信息中包含了频带与分量载波的对应关系。 UE 向基站反馈多载波分组信息的方式可采用方法实施例一和方法实施例 二中所述的方法， 此处不再赘述。
具体的， 基站用 MAC CE对同一频带上的所有载波进行激活 /去激活。 基站用上述频带信息表征需要各个分组， 具体 MAC CE的格式同方法实施 例一图 7所示， 激活、 去激活 MAC CE用 1个字节表示， 因现阶段载波聚 合中基站至多可以为 UE配置 5个下行载波，因此该 MAC CE中用最低的 5 个比特（bit )表示最多 5 个分组（即最多 5 个频带）， 剩余的高三位保留 ( Reserved, R )。 MAC CE中各个字段与 band之间的对应关系由基站和 UE 预先约定， 比如基站和 UE约定从 bitO到 bit4, 依次对应 UE能力所支持频 带中从最低频带到最高频带。 本方法实施例中，不需要对现有技术 UE上报射频能力信息进行任何修 改， 也不需要引入任何新的 UE上报射频能力信息的方法， 通过基站和 UE 预先约定， 执行激活 /去激活操作时， 必须对同一频带上的所有载波同时执 行激活 /去激活操作， 既达到良好的省电效果， 又不对 UE的数据传输造成 中断， 于此同时保证了良好的后向兼容性， 简化了基站和 UE的行为。 装置实施例一
图 9为本发明针对方法实施例一的装置实施例示意图， 该装置包括多 载波分组信息上>¾模块和多载波管理模块；
该实施例中，位于 UE的多载波分组信息上报模块， 用于在收到基站下 发的载波增加 /删除配置消息后， 根据 UE的射频能力， 通过增加 /删除分量 载波完成消息向基站反馈多载波分组信息； 位于基站的多载波管理模块用 于根据 UE上报的多载波分组信息进行合理的多载波管理。
UE上报的多载波分组信息至少包含： 分量载波组标识索引和分量载波 标识信息； 或分量载波组标识索引、 分量载波频点和 PCI信息； 所述多载 波分组信息表征基站配置给 UE的各个载波在 UE无线电射频单元上的分布 情况，同一个多载波分组上的载波将由 UE内同一个无线电射频单元负责数 据接收和 /或发送， 不同多载波分组上的载波将由 UE内不同的无线电射频 单元负责数据接收和 /或发送。
优选地， 所述的多载波管理具体包括多载波测量、 分量载波增加、 分 量载波删除、 分量载波激活和分量载波去激活中的一项或多项。 多载波管 理模块根据所述多载波分组信息进行多载波管理时， 对同一个多载波分组 上的载波同时激活 /去激活。
所述多载波管理模块根据 UE上报的多载波分组信息进行合理的多载 波管理的具体内容见方法实施例一， 此处不再赘述。 装置实施例二
图 10为本发明针对方法实施例二的装置实施例示意图， 该装置包括： 多载波能力查询请求模块、 多载波能力上 4艮模块、 多载波管理模块；
该实施例中，基站通过主动查询的方式获得 UE的多载波能力， 多载波 能力查询请求模块， 用于向 UE发送能力查询请求； 多载波能力上报模块用 于在接收到所述能力查询请求后， 根据自身的射频能力， 通过能力上报消 息向多载波管理模块上报多载波分组信息； 多载波管理模块用于根据 UE 上艮的多载波分组信息进行多载波管理。
多载波能力上报模块上报的 UE的多载波分组信息至少包含：分量载波 组标识索引、 一个或多个频带信息及所述频带对应的带宽； 或一个或多个 频带信息、 所述频带对应的带宽及各个频带所支持的能进行异频带载波聚 合的频带信息。
优选地， 所述的多载波管理具体包括多载波测量、 分量载波增加、 分 量载波删除、 分量载波激活和分量载波去激活中的一项或多项。 多载波管 理模块根据 UE的多载波分组信息进行多载波管理时，对分配给 UE的同一 频带上的载波同时激活 /去激活。
多载波管理模块根据 UE 的多载波分组信息进行合理的多载波管理的 具体内容见方法实施例二， 此处不再赘述。
图 12为本发明提供的一种多载波激活 /去激活装置， 该装置包括： 频带与载波关系维护单元， 用于获取和维护频带与分量载波之间的对 应关系；
激活 /去激活单元， 用于根据频带与载波的对应关系对同一频带上的所 有载波激活 /去激活。
优选地， 所述频带与载波关系维护单元通过获取的 UE能力信息、基站 为 UE配置载波的情况及 UE有关载波配置的反馈信息维护频带与载波的对 应关系。
优选地,所述频带与载波关系维护单元通过 UE向基站反馈的携带所述 多载波分组信息的增加 /删除分量载波完成消息 , 获取和维护频带与分量载 波的对应关系； 所述多载波分组信息包含： 分量载波组标识和该分量载波 组内各分量载波的标识信息； 或分量载波组标识和该分量载波组内各分量 载波的频点和 PCI信息。
优选地,所述频带与载波关系维护单元通过 UE向基站发送的携带所述 多载波分组信息的 UE能力上报消息，获取和维护频带与分量载波的对应关 系； 所述多载波分组信息包含： 分量载波组标识和该分量载波组支持的频 带； 或分量载波组标识和该分量载波组支持的频带及所述频带对应的带宽； 或一个或多个频带信息、 所述频带对应的带宽及所述频带所支持的能进行 异频带载波聚合的频带信息。
以上所有优选实施例中， 均只根据 UE的 Rx结构进行了说明， 需要说 明的是本发明方法实施例一和装置实施例一同样适用于增加 /删除上行 CC 的情况。本发明方法实施例二和装置实施例二 UE向基站反馈的 UE能力中， 如果 UE的 Rx和 Tx在射频实现的时候是通过不同的射频单元实现的， 且 Rx和 Tx的射频能力不同，那么所述 UE能力中既可以包含 UE的下行多载 波能力， 也可以包含 UE的上行多载波能力。
以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于 本领域的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精 神和原则之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明 的保护范围之内。

Claims

权利要求书
1、 一种多载波管理方法， 其特征在于， 该方法包括：
基站接收用户设备 ( UE )反馈的多载波分组信息， 根据所述多载波分 组信息进行多载波管理。
2、 根据权利要求 1所述的方法， 其特征在于， UE向基站反馈多载波 分组信息的方式具体为：
UE在接收到基站的增加 /删除分量载波的消息时， 向基站反馈增加 /删 除分量载波完成消息； 所述增加 /删除分量载波完成消息中携带所述多载波 分组信息。
3、 根据权利要求 1所述的方法， 其特征在于， UE向基站反馈多载波 分组信息的方式具体为：
基站向 UE发送 UE能力查询请求；
UE向基站反馈 UE能力上报消息 , 所述 UE能力上报消息中携带所述 多载波分组信息。
4、 根据权利要求 2所述的方法， 其特征在于，
所述多载波分组信息包含： 分量载波组标识和该分量载波组内各分量 载波的标识信息； 或分量载波组标识和该分量载波组内各分量载波的频点 和物理小区标识（PCI )信息。
5、 根据权利要求 3所述的方法， 其特征在于，
所述多载波分组信息包含： 分量载波组标识和该分量载波组支持的频 带； 或分量载波组标识和该分量载波组支持的频带及所述频带对应的带宽； 或一个或多个频带信息、 所述频带对应的带宽及所述频带所支持的能进行 异频带载波聚合的频带信息。
6、 根据权利要求 4或 5所述的方法， 其特征在于，
所述多载波分组信息表征基站配置给 UE的各个分量载波在 UE无线电 射频单元上的分布情况，同一个多载波分组上的分量载波将由 UE内同一个 无线电射频单元负责数据接收和 /或发送， 不同多载波分组上的分量载波将 由 UE内不同的无线电射频单元负责数据接收和 /或发送。
7、 根据权利要求 1至 5任一项所述的方法， 其特征在于，
所述基站根据所述多载波分组信息进行多载波管理包含以下一项或多 项：
基站根据所述多载波分组信息，避免向 UE配置 UE能力不支持的分量 载波；
当基站根据所述多载波分组信息获知在同一个无线电接收 /发送设备 上， 如果频繁激活 /去激活某个或某些分量载波， 将造成对主载波上数据传 输的中断， 则基站将避免频繁激活 /去激活所述某个或某些分量载波；
当基站根据所述多载波分组信息获知 UE只有一个无线电接^ /发送设 备,基站如果需要对配置的分量载波实施测量，则基站为 UE配置测量间隙， UE在测量间隙内实施对分量载波的测量， 基站在测量间隙内停止对 UE进 行数据调度， 以避免数据的丟失；
当基站根据所述多载波分组信息获知 UE有多个无线电接收 /发送设备， 对某个多载波分组进行激活 /去激活不会对其它多载波分组内的数据传输造 成影响， 则基站根据需要随时对所述多载波分组进行激活 /去激活操作； 当基站根据所述多载波分组信息获知 UE有多个无线电接收 /发送设备， 对某个多载波分组内的某个或某些分量载波进行测量不会对其它多载波分 组内的数据传输造成影响， 则基站不需为所述测量分配测量间隙。
8、 根据权利要求 1至 5任一项所述的方法， 其特征在于，
基站根据所述分量载波分组信息进行多载波管理时， 对同一个分量载 波分组上的载波同时激活 /去激活。
9、 一种多载波激活 /去激活方法， 其特征在于， 该方法包括： 基站根据频带与分量载波的对应关系， 对同一频带上的所有分量载波 激活 /去激活。
10、 根据权利要求 9所述的方法， 其特征在于，
所述基站根据协议规范对各个频率资源的划分， 获知所述频带与分量 载波的对应关系，或者通过 UE反馈的多载波分组信息获知所述频带与分量 载波的对应关系， 并根据所述多载波分组信息， 对同一频带上的所有载波 激活 /去激活。
11、 根据权利要求 10所述的方法， 其特征在于， 所述 UE反馈多载波 分组信息的方式具体为：
UE在接收到基站的增加 /删除分量载波的消息时， 向基站反馈增加 /删 除分量载波完成消息； 所述增加 /删除分量载波完成消息中携带所述多载波 分组信息；
所述多载波分组信息包含： 分量载波组标识和该分量载波组内各分量 载波的标识信息； 或分量载波组标识和该分量载波组内各分量载波的频点 和物理小区标识（PCI )信息。
12、 根据权利要求 10所述的方法， 其特征在于， 所述 UE反馈多载波 分组信息的方式具体为：
基站向 UE发送 UE能力查询请求； UE向基站反馈 UE能力上报消息， 所述 UE能力上报消息中携带所述多载波分组信息；
所述多载波分组信息包含： 分量载波组标识和该分量载波组支持的频 带； 或分量载波组标识和该分量载波组支持的频带及所述频带对应的带宽； 或一个或多个频带信息、 所述频带对应的带宽及所述频带所支持的能进行 异频带载波聚合的频带信息。
13、 一种多载波管理装置， 其特征在于， 该装置包括：
多载波分组信息上报模块， 位于 UE, 用于根据 UE的射频能力， 向基 站反馈多载波分组信息；
多载波管理模块， 位于基站， 用于根据所述多载波分组信息进行多载 波管理。
14、 根据权利要求 13所述的装置， 其特征在于，
所述多载波分组信息上报模块通过增加 /删除分量载波完成消息向基站 反馈所述多载波分组信息；
所述多载波分组信息包含： 分量载波组标识和该分量载波组内各分量 载波的标识信息； 或分量载波组标识和该分量载波组内各分量载波的频点 和物理小区标识（PCI )信息。
15、 根据权利要求 13所述的装置， 其特征在于，
所述多载波分组信息上报模块在接收到基站发送的 UE 能力查询请求 后， 通过 UE能力上报消息向基站反馈所述多载波分组信息；
所述多载波分组信息包含： 分量载波组标识和该分量载波组支持的频 带； 或分量载波组标识和该分量载波组支持的频带及所述频带对应的带宽； 或一个或多个频带信息、 所述频带对应的带宽及所述频带所支持的能进行 异频带载波聚合的频带信息。
16、 根据权利要求 14或 15所述的装置， 其特征在于，
所述多载波分组信息表征基站配置给 UE的各个载波在 UE无线电射频 单元上的分布情况，同一个多载波分组上的载波将由 UE内同一个无线电射 频单元负责数据接收和 /或发送， 不同多载波分组上的载波将由 UE内不同 的无线电射频单元负责数据接收和 /或发送；
所述的多载波管理具体包括多载波测量、 分量载波增加、 分量载波删 除、 分量载波激活和分量载波去激活中的一项或多项。
17、 根据权利要求 13所述的装置， 其特征在于，
所述多载波管理模块根据所述分量载波分组信息进行多载波管理时， 对同一个分量载波分组上的载波同时激活 /去激活。
18、 一种多载波激活 /去激活装置， 其特征在于， 该装置包括： 频带与载波关系维护单元， 用于获取和维护频带与分量载波之间的对 应关系；
激活 /去激活单元， 用于根据频带与载波的对应关系对同一频带上的所 有载波激活 /去激活。
19、 根据权利要求 18所述的装置， 其特征在于，
所述频带与载波关系维护单元根据协议规范对各个频率资源的划分， 获知所述频带与分量载波的对应关系， 通过获取的 UE 能力信息、 基站为 UE配置载波的情况及 UE有关载波配置的反馈信息维护频带与载波的对应 关系。
20、 根据权利要求 18所述的装置， 其特征在于，
所述频带与载波关系维护单元通过 UE 向基站反馈的携带所述多载波 分组信息的增加 /删除分量载波完成消息， 获取和维护频带与分量载波的对 应关系；
所述多载波分组信息包含： 分量载波组标识和该分量载波组内各分量 载波的标识信息； 或分量载波组标识和该分量载波组内各分量载波的频点 和物理小区标识（PCI )信息。
21、 根据权利要求 18所述的装置， 其特征在于，
所述频带与载波关系维护单元通过 UE 向基站发送的携带所述多载波 分组信息的 UE能力上 消息， 获取和维护频带与分量载波的对应关系； 所述多载波分组信息包含： 分量载波组标识和该分量载波组支持的频带； 或分量载波组标识和该分量载波组支持的频带及所述频带对应的带宽； 或一个或多个频带信息、 所述频带对应的带宽及所述频带所支持的能进 行异频带载波聚合的频带信息。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017196546A1 (en) * 2016-05-13 2017-11-16 Qualcomm Incorporated Handling for interruption due to carrier switching and carrier switching capability indication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101087481A (zh) * 2006-06-02 2007-12-12 阿尔卡特朗讯 用于传输信道质量指示符的方法、基站、用户终端和网络
CN101189903A (zh) * 2005-05-12 2008-05-28 摩托罗拉公司 为接收机建立载波激活集的装置和方法
US20100118720A1 (en) * 2008-10-31 2010-05-13 Interdigital Patent Holdings, Inc. Method and apparatus for monitoring and processing component carriers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101189903A (zh) * 2005-05-12 2008-05-28 摩托罗拉公司 为接收机建立载波激活集的装置和方法
CN101087481A (zh) * 2006-06-02 2007-12-12 阿尔卡特朗讯 用于传输信道质量指示符的方法、基站、用户终端和网络
US20100118720A1 (en) * 2008-10-31 2010-05-13 Interdigital Patent Holdings, Inc. Method and apparatus for monitoring and processing component carriers

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017196546A1 (en) * 2016-05-13 2017-11-16 Qualcomm Incorporated Handling for interruption due to carrier switching and carrier switching capability indication
CN109075953A (zh) * 2016-05-13 2018-12-21 高通股份有限公司 处理因载波切换引起的中断和载波切换能力指示
KR20190006491A (ko) * 2016-05-13 2019-01-18 퀄컴 인코포레이티드 캐리어 스위칭에 기인한 중단을 위한 핸들링 및 캐리어 스위칭 능력 표시
US10455558B2 (en) 2016-05-13 2019-10-22 Qualcomm Incorporated Handling for interruption due to carrier switching and carrier switching capability indication
KR102090417B1 (ko) * 2016-05-13 2020-03-17 퀄컴 인코포레이티드 캐리어 스위칭에 기인한 중단을 위한 핸들링 및 캐리어 스위칭 능력 표시
AU2017264510B2 (en) * 2016-05-13 2020-10-15 Qualcomm Incorporated Handling for interruption due to carrier switching and carrier switching capability indication
CN109075953B (zh) * 2016-05-13 2021-05-25 高通股份有限公司 处理因载波切换引起的中断和载波切换能力指示

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