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WO2011050564A1 - 一种发送系统信息的方法、系统和设备 - Google Patents

一种发送系统信息的方法、系统和设备 Download PDF

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Publication number
WO2011050564A1
WO2011050564A1 PCT/CN2010/001547 CN2010001547W WO2011050564A1 WO 2011050564 A1 WO2011050564 A1 WO 2011050564A1 CN 2010001547 W CN2010001547 W CN 2010001547W WO 2011050564 A1 WO2011050564 A1 WO 2011050564A1
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WO
WIPO (PCT)
Prior art keywords
transmission information
information
level
user
cell
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2010/001547
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English (en)
French (fr)
Inventor
梁靖
李国庆
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China Academy of Telecommunications Technology CATT
Original Assignee
China Academy of Telecommunications Technology CATT
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Filing date
Publication date
Application filed by China Academy of Telecommunications Technology CATT filed Critical China Academy of Telecommunications Technology CATT
Publication of WO2011050564A1 publication Critical patent/WO2011050564A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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) or DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or 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
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • 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
    • H04L5/0037—Inter-user or inter-terminal allocation
    • 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—Signalling for the administration of the divided path, e.g. signalling of configuration information
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • 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

Definitions

  • the present invention relates to wireless communication technologies, and in particular, to a method, system and device for transmitting system information. Background technique
  • the peak rate of the LTE-A system is greatly improved compared with the LTE system.
  • the LTE-A system requires downlink IGbps and uplink 500Mbps. Obviously, the bandwidth of 20Mhz can no longer meet this demand.
  • a CA Carrier Aggregation
  • eNB Evolved Base Station
  • the LTE-A system is a multi-carrier system.
  • each carrier wave does not exceed 20Mhz at most.
  • the CA technology of LTE-A is shown in Figure IB.
  • the base station can transmit data on the four carriers at the same time and at the terminal to improve system throughput.
  • the LTE-A system needs to expand the bandwidth that can be used by the user terminal, thereby introducing the CA technology, which is to aggregate multiple consecutive or discontinuous carriers under the same eNB and simultaneously serve the user terminal. These aggregated carriers are also called component carriers (CC).
  • CC component carriers
  • the user equipment UE, User Equipment
  • MIB Master Information Block
  • SIB System Information Block
  • the user terminal Since there are multiple carriers in the LTE-A system, when performing carrier aggregation transmission, the user terminal also needs to know the system information of each carrier aggregation cell. However, there is no technical solution for the user terminal to know the system of each cell. information. Summary of the invention
  • Embodiments of the present invention provide a method, system, and device for acquiring system information, which are used to notify system terminals of system information, thereby implementing carrier aggregation transmission in an LTE-A system.
  • the network side determines the aggregated transmission information of the aggregated transmission information set corresponding to the primary serving cell where the user terminal is located, and the information content is different, and the aggregated transmission information is aggregated from the aggregated transmission information set corresponding to the primary serving cell of the user terminal.
  • the set is a set of information used in carrier aggregation transmission in system information corresponding to the carrier aggregation cell;
  • the network side sends the determined aggregate transmission information to the user terminal.
  • the user terminal receives aggregated transmission information from the network side;
  • the user terminal performs the carrier aggregation transmission according to the aggregated transmission information.
  • An information determining module configured to determine, from the aggregated transmission information set corresponding to each carrier aggregation cell, aggregated transmission information that has the same information type and different information content in the aggregated transmission information set corresponding to the primary serving cell where the user terminal is located,
  • the aggregation transmission information set is a set of information used in the carrier aggregation transmission in the system information corresponding to the carrier aggregation cell;
  • a sending module configured to send the determined aggregate transmission information to the user terminal.
  • a receiving module configured to receive aggregated transmission information from a network side
  • a transmission module configured to perform carrier aggregation transmission according to the aggregate transmission information.
  • the network side is configured from the aggregated transmission information set corresponding to each of the carrier aggregation cells. Determining, by the aggregation transmission information set of the aggregate transmission information set corresponding to the primary serving cell where the user terminal is located, the aggregated transmission information with the same information type and different information content, and transmitting the determined aggregated transmission information to the user terminal, where the aggregated transmission information set is a system corresponding to the carrier aggregation cell A collection of information used in the message aggregation transmission.
  • the network side can send system information to the user terminal, so that the user terminal can know the system information of each carrier aggregation cell, so that carrier aggregation transmission can be implemented in the LTE-A system;
  • the network side only informs the user terminal of the system information related to the carrier aggregation transmission, thereby reducing the signaling overhead and saving the consumption and power of the user terminal.
  • Figure 1A is a schematic diagram of the carrier wave in the LTE system
  • 1B is a schematic diagram of a carrier in an LTE-A system
  • FIG. 2 is a schematic structural diagram of a system for transmitting system information according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a network side device according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a user terminal according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a method for transmitting system information according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a carrier activation scenario according to an embodiment of the present invention. detailed description
  • the network side determines, from the aggregated transmission information set corresponding to each of the carrier aggregation cells, that the information type in the aggregated transmission information set corresponding to the primary serving cell where the user terminal is located is the same, and the information content
  • the aggregated transmission information is sent to the user terminal, where the aggregated transmission information set is a set of information used in carrier aggregation transmission in the system information corresponding to the carrier aggregation cell.
  • the network side can send system information to the user terminal, so that the user terminal can know the system information of each carrier aggregation cell, thereby implementing the carrier aggregation transmission and the multi-carrier in the LTE-A system.
  • the primary serving cell is a cell that is accessed by the user terminal and can provide security input and NAS (Non Access Stratum) mobility information for the user terminal.
  • NAS Non Access Stratum
  • the solution of the embodiment of the present invention can be applied to multiple scenarios, such as a carrier activation scenario, a multi-carrier switching scenario, and the like.
  • the primary serving cell where the user terminal is located is the primary serving cell currently accessed by the user terminal;
  • the carrier aggregation cell is a cell that can perform carrier aggregation transmission with the primary serving cell currently accessed by the user terminal.
  • the primary cell where the user terminal is located is the primary serving cell that is accessed before the user terminal switches or the primary serving cell that is accessed after the handover;
  • the carrier aggregation cell is a cell capable of performing carrier aggregation transmission by the primary serving cell that can be accessed after handover with the user terminal.
  • the MIB, SIB1, and SIB2 corresponding to the cell include multiple system information, but not every system information is related to carrier aggregation transmission.
  • the system information related to the carrier aggregation transmission is used as the aggregate transmission information; and the set of the information used in the carrier aggregation transmission in the system information corresponding to the small area is used as the aggregation transmission information set.
  • the aggregated transmission information set is divided into first aggregate transmission information and second aggregate transmission information.
  • the first aggregated transmission information is aggregated transmission information in which the information content of the aggregated transmission information corresponding to any two cells is the same, and the information content before and after the change is the same, and the different aggregated transmission information. That is to say, the small interval must have the same aggregated transmission information and the different aggregated transmission information between the cells as the first aggregated transmission information.
  • the aggregated transmission information that must be the same for the interval includes, but is not limited to, one or more of the following: SFN (SystemFrameNumber), TDD (Time Division Duplex) configuration.
  • the small interval must be different from the aggregated transmission information including but not limited to one or more of the following information Species: Cell downlink operating frequency (dl-freq), ECGI (E-UTRAN Cell Global ID, E-UTRAN: Evolved Universal Terrestrial Radio Access Network, Evolved Universal Terrestrial Radio Access Network).
  • dl-freq Cell downlink operating frequency
  • ECGI E-UTRAN Cell Global ID
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • Evolved Universal Terrestrial Radio Access Network Evolved Universal Terrestrial Radio Access Network
  • the second aggregated transmission information is aggregated transmission information other than the first aggregated transmission information in the aggregated transmission information set. That is to say, the second aggregated transmission information is aggregated transmission information that may be the same or different between the carriers, that is, when the information content of the aggregated transmission information corresponding to any two cells changes, the same change before the change is different. Or the same after different changes before the change.
  • the carrier waves may be the same, or different aggregate transmission information may include, but is not limited to, one or more of the following information:
  • Radio resource common configuration in SIB2, UE timer and constant (ue-Timers AndConstants, including ⁇ 300, ⁇ 301, ⁇ 310, ⁇ 311, ⁇ 310, N311, etc.), uplink frequency in frequency information (freqlnfo) (ul-CarrierFreq ), upstream bandwidth (ul-Bandwidth) and additional frequency spread ( additionalSpectrumEmission), timing advance timer (TimeAlignmentTimer).
  • the second aggregation transmission information may be different for the user terminals in different states.
  • the T300 is used for the RRC (Radio Resource Control) connection establishment process, and the user terminal in the connected state does not The RRC connection establishment process is initiated, so the T300 may not be included in the second aggregated transmission information corresponding to the user terminal in the connected state.
  • RRC Radio Resource Control
  • the system for transmitting system information in the embodiment of the present invention includes: a network side device 10 and a user terminal 20.
  • the network side device 10 is configured to determine, from the aggregated transmission information set corresponding to each of the carrier aggregation cells, the aggregated transmission information in the aggregated transmission information set corresponding to the primary serving cell where the user terminal is located, and the information content is different, and the information content is different. Sending determined aggregated transmission information, wherein the aggregated transmission
  • the information set is a set of information used in the carrier aggregation transmission in the system information corresponding to the carrier aggregation cell.
  • the user terminal 20 is configured to receive aggregated transmission information from the network side device 10.
  • the user terminal 20 Since the aggregated transmission information has a plurality of aggregated transmission information, the user terminal 20 knows each aggregated transmission information of the primary serving cell, so the network side device 10 only needs to send the aggregated transmission information different from the primary serving cell, and the primary service The same aggregated transmission information of the cell does not need to be sent, which can further save overhead;
  • the user terminal 20 uses the received aggregated transmission information as the aggregated transmission information of the corresponding carrier aggregation cell, and the aggregated transmission information of the primary serving cell as the aggregated transmission information that is not received.
  • Aggregation transmission information of a wave aggregation cell is not received.
  • carrier aggregation cells VIII, B, and C where carrier aggregation cell A is the primary serving cell, and carrier aggregation cell B has the same downlink bandwidth as the primary serving cell, and the carrier aggregation cell C has the same maximum transmission power as the primary serving cell.
  • the network side device 10 does not transmit the downlink bandwidth corresponding to the carrier aggregation cell B, and does not transmit the maximum transmission power corresponding to the carrier aggregation cell C.
  • the user terminal 20 receives the downlink bandwidth corresponding to the carrier aggregation cell B.
  • the carrier terminal 20 knows that the downlink bandwidth of the primary serving cell is the downlink bandwidth of the carrier aggregation cell B, and the maximum transmit power of the primary serving cell is the maximum transmit power of the carrier aggregation cell C. .
  • the aggregation transmission information set includes the first aggregation transmission information and the second aggregation transmission information
  • the network side device 10 needs to determine that the information content before and after the change in the first aggregation transmission information corresponding to each of the carrier aggregation cells is different.
  • the first aggregated transmission information, and the second aggregated transmission information corresponding to the current primary serving cell, and the second aggregated transmission information of the second aggregated transmission information corresponding to the current primary serving cell, and the second aggregated transmission information having different information content And determining the determined first aggregate transmission information and the second aggregate transmission information as the determined aggregate transmission information.
  • the first aggregated transmission information in which the information content before and after the change in the first aggregated transmission information is different is the aggregated transmission information that is definitely different between each cell, the part of the aggregated transmission information must be transmitted; and the second aggregated transmission information has There may be a second aggregation pass corresponding to the current primary serving cell.
  • the second aggregated transmission information of the same type of information and different information content.
  • the user terminal 20 may be notified by means of delta signaling, that is, when the aggregated transmission information is the same, the user terminal 20 is not notified to aggregate the transmission information, and only the indication information is notified; when the aggregated transmission information is different The user terminal 20 is notified to aggregate the transmission information.
  • the network side device 10 sends the determined second aggregate transmission information;
  • the network side device 10 needs to use the first indication information as the determined second aggregate transmission information, where the second aggregation transmission information of the second aggregation transmission information corresponding to the current primary serving cell is the same, and the information content is different.
  • the first indication information is used to indicate that the user equipment uses the second aggregate transmission information corresponding to the primary serving cell as the second aggregate transmission information corresponding to the carrier aggregation cell.
  • the user terminal 20 uses the second aggregate transmission information of the primary serving cell as the second aggregate transmission information of the carrier aggregation cell.
  • the first indication information may be lbit data, such as 0, or a special set of bits, such as 01010101.
  • the second indication information-fourth indication information introduced below is similar to the first indication information. If different indication information is represented by the same number, it can be distinguished by different dedicated signaling, or by the same dedicated signaling. Different areas are distinguished.
  • the network side device 10 may send the first aggregated transmission information and the second aggregated transmission information in one dedicated signaling, or may be sent in two dedicated signaling.
  • the dedicated signaling may be: an RRC connection reconfiguration message, a carrier aggregation activation message, and the like.
  • the dedicated signaling may be: an RRC connection reconfiguration message, a handover command, and the like.
  • the second aggregated transmission information may further include cell-level second aggregated transmission information and user-level second aggregated transmission information, where the second-level aggregated transmission information of the cell-level is valid in one cell, and is applied to the configuration information of the cell itself, including but Not limited to one or more of the following information: Cell downlink bandwidth (dl-Bandwidth) in the MIB, PHICH configuration. UE uplink transmission power limit (P-max) in SIB1, frequency band (freqBandIndicator) in which the cell is located.
  • dl-Bandwidth Cell downlink bandwidth
  • PHICH configuration HARQBandIndicator
  • Radio resource common configuration in SIB2, uplink frequency (ul-CarrierFreq), uplink bandwidth (ul-Bandwidth) and additional frequency spread (additionSpectrumEmission) in frequency information (freqlnfo),
  • the user-level second aggregated transmission information is valid in one cell and is applied to configuration information of all users in the cell, including but not limited to one or more of the following information:
  • UE timers and constants including T300, ⁇ 301, ⁇ 310, ⁇ 311, ⁇ 310, N311, etc.
  • timing advance timer time advance timer
  • the network side device 10 may transmit the cell level second aggregate transmission information, the user level second aggregate transmission information, and the first aggregate transmission information to the user terminal by using at least one dedicated signaling.
  • the network side device 10 can be sent through three dedicated signalings (ie, one dedicated signaling bears the cell-level second aggregated transmission information, one dedicated signaling carries the user-level second aggregated transmission information, and one dedicated signaling bearer first.
  • Aggregation transmission information can also be sent by two dedicated signaling (ie, one dedicated signaling carries the first aggregated transmission information, and another dedicated signaling carries the cell-level second aggregated transmission information and the user-level second aggregated transmission information) ; It can also be sent via a dedicated signaling.
  • the network-side device 10 may use the second indication information as the determined cell-level second aggregation transmission information, where the second indication information is used to indicate that the user terminal aggregates the cell-level second corresponding to the primary serving cell. Transmitting information as cell-level second aggregate transmission information corresponding to the carrier aggregation cell;
  • the user-level second aggregation transmission information corresponding to each of the carrier aggregation cells is different, the user-level second aggregation transmission information corresponding to the primary serving cell has the same information type, and the user-level second aggregation transmission information with different information content
  • the network side device 10 may use the third indication information as the determined user-level second aggregation transmission information, where the third indication information is used to indicate that the user terminal uses the user-level second aggregation transmission information corresponding to the primary serving cell as the carrier aggregation cell. Corresponding user-level second aggregation Transfer information.
  • network side device 10 There are many ways for the network side device 10 to send user-level second aggregated transmission information, and several are listed below:
  • the network side device 10 selects at least one carrier aggregation cell from the carrier aggregation cell, and sends the user-level second aggregation transmission information corresponding to the selected carrier aggregation cell to the user terminal, where the user level is sent to the user terminal.
  • the second aggregate transmission information is the user-level second aggregate transmission information of the user-level second aggregation transmission information corresponding to the primary serving cell where the user terminal is located, and the information content is different;
  • the user terminal 20 determines, according to the received user-level second aggregation transmission information of the at least one carrier aggregation cell, the user-level second aggregation transmission information corresponding to all carrier aggregation cells that perform the carrier aggregation transmission.
  • the network-side device 10 may only send the information. Determining a user-level second aggregate transmission information of a carrier aggregation cell; or transmitting a determined user-level second aggregation transmission information of the plurality of carrier aggregation cells; and transmitting the determined user-level aggregation level of all the carrier aggregation cells
  • the second aggregate transmits information (this case is the same as the transmission of the cell-level second aggregated transmission information).
  • the user-level second aggregation transmission information of the carrier aggregation cell may be determined by the network-side device 10 or the user terminal 10 according to the characteristics of the cell, or may be between the network-side device 10 and the user terminal 20. Negotiate and determine.
  • the root cell's own characteristics are determined, mainly depending on the channel transmission characteristics of the component carrier of the cell. It is assumed that the component carrier channel characteristics of the two carrier aggregation cells are different, and the user cannot use the same radio link failure detection timer ( T310) and the counters (N310, N311) perform radio link channel quality monitoring on the component carriers of the two cells, then the radio link failure detection timer (T310) and the counters (N310, N311) of the two cells are Need to be sent to the user, otherwise, choose one of them to send to the user.
  • the network side device 10 may notify the user terminal 20 which carrier aggregation cell of the carrier aggregation cell is the same as the user-level second aggregation transmission information of the remaining carrier aggregation cell. For example, there are four carrier aggregation cells A, B, C, and D, wherein the user-level aggregation transmission information of the carrier aggregation cell A and the carrier aggregation cell B is the same, and the network-side device 10 only needs to send the carrier aggregation small.
  • the user-level terminal 20 receives the user-level second aggregation transmission information as the user-level second corresponding to the carrier aggregation cell. Aggregate transfer information.
  • the network side device 10 and the user terminal 20 can distinguish the user-level second aggregation transmission information of the carrier aggregation cell according to different areas of the dedicated signaling (for example, the area 1 is the user-level second of the carrier aggregation cell 1).
  • the aggregation transmission information, the area 2 is the user-level second aggregation transmission information of the carrier aggregation cell 2, and the like; and the network side device 10 may further add the carrier aggregation cell before the user-level second aggregation transmission information.
  • the identifier of the cell such as the cell identifier or the network side device 10 and the user terminal 20, is well-defined.
  • the network-side device 10 has the same information type of the user-level second aggregation transmission information corresponding to the primary serving cell where the user terminal is located, and the user-level information content is different.
  • the fourth indication information is sent to the user terminal as the user-level second aggregate transmission information, where the fourth indication information is used to indicate that the user terminal sends the user-level second aggregation of the recently determined carrier aggregation cell.
  • the information is transmitted as the current user-level second aggregated transmission information.
  • the network side device 10 determines that the information type of the user-level second aggregated transmission information corresponding to the primary serving cell where the user terminal is located is the same, and the user-level second aggregated transmission information with different information content is the fourth.
  • the indication information is sent to the user terminal as the user-level second aggregate transmission information.
  • the user terminal 20 after receiving the fourth indication information, the user terminal 20 knows that the user-level second aggregation transmission information of the last determined carrier aggregation cell is used as Current user-level second aggregated transmission letter The information, that is, does not change the user-level second aggregate transmission information of each existing carrier aggregation cell.
  • publicly-configured user-level second aggregated transmission information and/or dedicated configured user-level second aggregated transmission information may also be included.
  • the publicly configured user-level second aggregated transmission information is valid in one cell and is applied to configuration information of all users in the cell, including but not limited to one or more of the following information:
  • UE timers and constants including T300, ⁇ 301, ⁇ 310, ⁇ 311, ⁇ 310, N311, etc.
  • common timing advance timer TimeAlignmentTimer
  • the user-level second aggregate transmission information of the dedicated configuration is configuration information that is valid only for one user, including but not limited to one or more of the following information:
  • Radio link failure timers and constants including T301, ⁇ 310, ⁇ 311, ⁇ 310, ⁇ 311, etc.
  • dedicated timing advance timer timeAlignmentTimer
  • the network-side device 10 When determining that only a certain user terminal 20 needs to update the user-level second aggregated transmission information, the network-side device 10 transmits the user-configured second-level aggregated transmission information to the user terminal 20; and determines each user terminal in the required cell. When the user-level second aggregated transmission information is updated, the public-configured user-level second aggregated transmission information is transmitted to each of the user terminals 20 in the cell.
  • the user terminal 20 After receiving the user-level second aggregated transmission information of the dedicated configuration, the user terminal 20 replaces the received user-level second aggregate transmission information of the dedicated configuration with the user-level second aggregation transmission information of the public configuration of the same type that has been received. .
  • the network side device in the embodiment of the present invention may be a station, or may be another device on the network side, or may be a new device on the network side.
  • the base station is a base station where the primary serving cell currently accessed by the user terminal is located; if the network side device in the embodiment of the present invention is a base station, and the application is When the multi-carrier switching scenario is performed, the base station is a base station where the primary serving cell accessed by the user terminal after handover (ie, the target base station after handover).
  • the network side device of the embodiment of the present invention includes: an information determining module 100 and a sending module 110.
  • the information determining module 100 is configured to aggregate aggregated information information corresponding to each carrier aggregation cell.
  • the aggregated transmission information in the aggregation transmission information set corresponding to the primary serving cell where the user terminal is located is the same, and the information content is different, and the aggregated transmission information set is the carrier aggregation transmission in the system information corresponding to the carrier aggregation cell. A collection of information that is used when.
  • the sending module 110 is configured to send the aggregated transmission information determined by the information determining module 100 to the user terminal.
  • the aggregation transmission information set includes the first aggregation transmission information and the second aggregation transmission information.
  • the first aggregation transmission information is that when the information content of the aggregate transmission information corresponding to any two cells changes, the information content before and after the change is the same.
  • the second aggregated transmission information is aggregated transmission information other than the first aggregated transmission information in the aggregated transmission information set, and the information determining module 100 determines that each of the carrier aggregation cells corresponds to The first aggregated transmission information in which the information content before and after the change in the first aggregated transmission information is different, and the second aggregate transmission transmission corresponding to the current primary serving cell in the second aggregated transmission information corresponding to each current carrier aggregation cell is determined.
  • the second aggregated transmission information of the information type is the same, and the information is different, and the determined first aggregated transmission information and the second aggregated transmission information are used as the determined aggregated transmission information.
  • the information determining module 100 determines that the second aggregated transmission information corresponding to the current primary serving cell does not have the same information type of the second aggregated transmission information corresponding to the current primary serving cell, and the second aggregated transmission with different information content
  • the first indication information is used as the determined second aggregation transmission information
  • the first indication information is used to indicate that the user equipment uses the second aggregation transmission information corresponding to the primary serving cell as the second aggregate transmission information corresponding to the carrier aggregation cell.
  • the second aggregation transmission information includes the cell-level second aggregation transmission information and the user-level second aggregation transmission information.
  • the sending module 110 sends the cell-level second aggregation transmission information to the user terminal by using at least one dedicated signaling, and the user-level second aggregation. Transmitting information and determined first aggregated transmission information.
  • the information determining module 100 determines that the cell-level second aggregated transmission information corresponding to the primary serving cell has the same information type of the cell-level second aggregated transmission information corresponding to the primary serving cell, and the information content is different.
  • the second indication information is used as the determined cell-level second aggregation transmission information, and the second indication information is used to indicate that the user equipment uses the cell-level second aggregation transmission information corresponding to the primary-month I-cell as the carrier wave.
  • the third indication information is used as the determined user-level second aggregated transmission information,
  • the third indication information is used to indicate that the user equipment uses the user-level second aggregation transmission information corresponding to the primary serving cell as the user-level second aggregation transmission information corresponding to the carrier aggregation cell.
  • the sending module 110 selects at least one carrier aggregation cell from the carrier aggregation cell, and sends the user-level second aggregation transmission information corresponding to the selected carrier aggregation cell to the user terminal, where the user-level second aggregation is sent to the user terminal.
  • the transmission information is the user-level second aggregate transmission information of the user-level second aggregation transmission information corresponding to the primary serving cell where the user terminal is located, and the information content is different; or
  • the user-level second aggregate transmission information corresponding to the primary serving cell where the user terminal is located has the same information type of the user-level second aggregated transmission information, and the user-level second aggregated transmission information is different when the information content is different.
  • the fourth indication information is sent to the user terminal as the user-level second aggregate transmission information, where the fourth indication information is used to indicate that the user terminal uses the user-level second aggregation transmission information of the last-time determined carrier aggregation cell as the current user level.
  • the second aggregate transmits information.
  • the user terminal of the embodiment of the present invention includes: a receiving module 200 and a transmitting module 210.
  • the receiving module 200 is configured to receive aggregated transmission information from the network side.
  • the transmission module 210 is configured to perform carrier aggregation transmission according to the aggregated transmission information.
  • the information is applied to the related wave-aggregated cells to perform parameter configuration, and then the configuration is used to perform data transmission and reception, and the carrier-side aggregation transmission with the network side is implemented.
  • the receiving module 200 determines, according to the received user-level second aggregation transmission information of the at least one carrier aggregation cell, that the carrier aggregation transmission is performed. User-level second aggregate transmission information corresponding to all the carrier aggregation cells.
  • the receiving module 200 replaces the received user-level second aggregate transmission information of the dedicated configuration with the user of the public configuration of the same type received.
  • the second aggregation transmits information.
  • the method for transmitting system information in the embodiment of the present invention includes the following steps: Step 501: The network side determines, from the aggregated transmission information set corresponding to each of the carrier aggregation cells, an aggregation corresponding to the primary serving cell where the user terminal is located.
  • the aggregated transmission information in the transmission information set is the same, and the information content is different.
  • the aggregate transmission information set is a set of information used in carrier aggregation transmission in the system information corresponding to the carrier aggregation cell.
  • Step 502 The network side sends the determined aggregate transmission information to the user terminal.
  • the step 502 may further include:
  • Step 503 The user terminal determines, according to the received aggregated transmission information, aggregated transmission information of the carrier aggregation cell.
  • the user terminal Since the aggregated transmission information has a plurality of aggregated transmission information, the user terminal knows each aggregated transmission information of the primary serving cell, so the network side only needs to send the aggregated transmission information different from the primary serving cell, and is the same as the primary serving cell. Aggregate transmission information does not need to be sent, which can further save overhead;
  • the user terminal after receiving the aggregated transmission information, uses the received aggregated transmission information as the aggregated transmission information of the corresponding carrier aggregation cell, and the aggregated transmission information of the primary serving cell for the aggregated transmission information that is not received.
  • the aggregate transmission information of the carrier aggregation cell As the aggregate transmission information of the carrier aggregation cell.
  • carrier aggregation cells VIII, B, and C where carrier aggregation cell A is the primary serving cell, and carrier aggregation cell B has the same downlink bandwidth as the primary serving cell, and the carrier aggregation cell C has the same maximum transmission power as the primary serving cell.
  • the network side device 10 does not send the downlink bandwidth corresponding to the carrier aggregation cell B, and does not transmit the maximum transmission power corresponding to the carrier aggregation cell C.
  • the user terminal 20 receives the downlink bandwidth and the carrier wave corresponding to the carrier aggregation cell B.
  • the maximum transmission power corresponding to the aggregation cell C the user terminal 20 knows that the downlink bandwidth of the primary serving cell is used as the downlink bandwidth of the carrier aggregation cell B, and the maximum transmission power of the primary serving cell is used as the maximum transmission power of the carrier aggregation cell C. .
  • the aggregation transmission information set includes the first aggregation transmission information and the second aggregation transmission information.
  • the network side needs to determine that the information content before and after the change in the first aggregation transmission information corresponding to each of the carrier aggregation cells is not The same aggregate transmission information, as well as determining the current The second aggregated transmission information corresponding to the current carrier cell, the second aggregated transmission information corresponding to the current primary serving cell, and the second aggregated transmission information having different information content, and the first aggregated transmission information to be determined The second aggregated transmission information is used as the determined aggregated transmission information.
  • the first aggregated transmission information that is different from the information in the first aggregation transmission information before and after the change is the aggregated transmission information that is definitely different between each cell, so the part of the aggregated transmission information must be sent;
  • the user terminal may be notified by means of incremental signaling, that is, when the aggregate transmission information is the same, the user terminal is not notified to aggregate the transmission information, and only the indication information is notified; when the aggregate transmission information is different, the user terminal is notified to aggregate. transmit information.
  • step 502 the network side sends the determined second aggregate transmission information. If there is no second aggregated transmission information of the second aggregation transmission information corresponding to the current primary serving cell and the information content is different, then in step 502, the network side needs to use the first indication information as the determined second aggregation. Transmitting information, where the first indication information is used to indicate that the user equipment uses the second aggregated transmission information corresponding to the primary serving cell as the second aggregation transmission information corresponding to the carrier aggregation cell.
  • the user terminal in step 503 uses the second aggregation transmission information of the primary serving cell as the second aggregate transmission information of the carrier aggregation cell.
  • the first indication information may be lbit data, such as 0, or a special set of bits, such as 01010101.
  • the second indication information to the fourth indication information described below is similar to the first indication information. If different indication information is represented by the same number, it can be distinguished by different dedicated signaling, or by the same dedicated signaling. Different areas are distinguished.
  • the network side may send the first aggregated transmission information and the second aggregated transmission information in one dedicated signaling, or may be sent in two dedicated signaling.
  • the second aggregate transmission information may further include cell-level second aggregation transmission information and user-level second aggregation transmission information.
  • the network side may send the cell-level second aggregated transmission information, the user-level second aggregated transmission information, and the first aggregated transmission information to the user terminal by using at least one dedicated signaling.
  • the network side can be sent through three dedicated signalings (that is, one dedicated signaling carries the second aggregated transmission information of the cell level, one dedicated signaling carries the second aggregated transmission information of the user level, and one dedicated signaling carries the first aggregated transmission information. ); can also be sent through two dedicated signaling (ie, one dedicated signaling carries the first aggregated transmission information, and another dedicated signaling carries the cell-level second aggregated transmission information and the user-level second aggregated transmission information); It can be sent through a dedicated signaling.
  • the cell-level second aggregation transmission information corresponding to each of the carrier aggregation cells has the same information type, and the information content is different.
  • the second aggregation transmission information is used by the network side, and the second indication information is used as the second aggregation transmission information of the cell level.
  • the second indication information is used to indicate that the user equipment uses the second aggregation transmission information of the cell level corresponding to the primary serving cell as the carrier wave.
  • the user-level second aggregation transmission information corresponding to each of the carrier aggregation cells has the same information type, and the user-level second aggregation transmission information with different information content
  • the network side may use the third indication information as the determined user-level second aggregation transmission information, where the third indication information is used to indicate that the user terminal uses the user-level second aggregation transmission information corresponding to the primary serving cell as the carrier aggregation cell.
  • the user-level second aggregate transmits information.
  • step 502 there are many ways for the network side to send the user-level second aggregated transmission information, and several types are listed below:
  • the network side selects at least one carrier aggregation cell from the carrier aggregation cell, and sends the user-level second aggregation transmission information corresponding to the selected carrier aggregation cell to the user terminal, where the user-level second aggregation is sent to the user terminal.
  • the transmission information is the same as the information type of the user-level second aggregate transmission information corresponding to the primary serving cell where the user terminal is located, and the user content of the information content is different. Aggregate transmission of information;
  • the user terminal determines the user-level second aggregate transmission information corresponding to all the carrier aggregation cells that perform carrier aggregation transmission according to the received user-level second aggregation transmission information of the at least one carrier aggregation cell.
  • the network side may only send Determining the user-level second aggregate transmission information of one carrier aggregation cell; or transmitting the determined user-level second aggregation transmission information of the multiple carrier aggregation cells; and transmitting the determined user-level second aggregation of all the carrier aggregation cells Transmitting information (this is the same as sending cell-level second aggregated transmission information).
  • the user-level second aggregation transmission information of the one or more carrier aggregation cells sent by the specific network side may be determined by the network side or the user terminal according to the characteristics of the cell itself, or may be determined by the network side and the user terminal.
  • the network side may notify the user terminal of which carrier aggregation cell and the remaining part of the carrier aggregation cell of the part of the carrier aggregation cell sent by the user terminal.
  • the second aggregation transmission information is the same. For example, if there are four carrier aggregation cells A, B, C, and D, where the user-level second aggregation transmission information of the carrier aggregation cell A and the carrier aggregation cell B are the same, the network side only needs to send the carrier aggregation.
  • the user terminal receives the user-level second aggregation transmission information that is received as the user-level second aggregation transmission information of the corresponding carrier aggregation cell.
  • the network side and the user terminal may distinguish the user-level second aggregation transmission information of the carrier aggregation cell according to different areas of the dedicated signaling (for example, the area 1 is the user-level second aggregation of the carrier aggregation cell 1). Transmitting information, area 2 is the user-level second aggregation of the carrier aggregation cell 2
  • the information may be transmitted by the network side.
  • the network side may also add an identifier that identifies the carrier aggregation cell before the user-level second aggregation transmission information, such as the cell identifier or the network side and the user terminal agreed-aid identifier.
  • the network side has the same information type of the user-level second aggregate transmission information corresponding to the primary serving cell where the user terminal is located, and the user level is different.
  • the fourth indication information is sent to the user terminal as the user-level second aggregation transmission information, where the fourth indication information is used to indicate that the user terminal sends the user-level second aggregation transmission information of the carrier aggregation cell that is last determined. As the current user-level second aggregate transmission information.
  • the fourth indication information is As the user-level second aggregate transmission information is sent to the user terminal; correspondingly, in step 503, after receiving the fourth indication information, the user terminal knows that the user-level second aggregate transmission information of the last determined carrier aggregation cell is used as The current user-level second aggregation transmission information, that is, does not change the user-level second aggregation transmission information of each existing carrier aggregation cell.
  • publicly-configured user-level second aggregated transmission information and/or dedicated configured user-level second aggregated transmission information may also be included.
  • the network side When determining that only the user terminal needs to update the user-level second aggregated transmission information, the network side sends the user-configured second-level aggregated transmission information to the user terminal; and determines that each user terminal in the required cell updates the user-level second aggregation. When the information is transmitted, the publicly configured user-level second aggregated transmission information is transmitted to each user terminal in the cell.
  • the user terminal After receiving the user-level second aggregation transmission information of the dedicated configuration, the user terminal replaces the received user-level second aggregation transmission information of the dedicated configuration with the user-level second aggregation transmission information of the public configuration of the same type that has been received.
  • the method for transmitting the system information in the embodiment of the present invention may also be used as a step of performing the carrier aggregation transmission.
  • the step 501 may be a preparation step of the carrier aggregation transmission
  • the step 503 may be followed by the step of performing carrier aggregation transmission.
  • the timing relationship between these steps can be based on Need to change.
  • the UE initially works in the cell 1. Because the traffic increases, the UE needs to perform CA transmission (ie, carrier aggregation transmission), and the base station 1 decides to aggregate the UE. Cell 1 and cell 2 perform CA transmission, and then the base station transmits the CA necessary system information of the cell 2 to the UE through dedicated signaling.
  • CA transmission ie, carrier aggregation transmission
  • the downlink working frequency of the cell 2 is £2, which is different from the af of the cell 1.
  • the base station must send it to the UE, and the UE performs CA transmission on the cell 2 on G according to the information.
  • the base station does not send the downlink bandwidth to the UE.
  • the UE considers that the downlink bandwidth of the two cells is the same, and performs CA transmission according to this; if the downlink bandwidth of the cell 2 is different from the cell 1, The base station sends it to the UE, and the UE performs CA transmission according to the bandwidth.
  • the base station transmits it to the UE, and the UE performs CA transmission according to the PHICH configuration.
  • T300 is used for the RRC connection establishment process
  • T301 and T311 are used for the RRC connection re-establishment process
  • T310, ⁇ 310 and 311 are used for the radio link failure process. Since the UE is currently in the connected state, the R C connection establishment process is not initiated again, and the cell 2 of the cell 2 does not need to be sent to the UE. Since the RRC connection reestablishment process is based on a single cell, T301 and T311 can save one set at the UE side. For T310, N310 and N311, it can be configured to the UE through dedicated signaling.
  • the UE does not currently have the dedicated signaling configuration T310, N310, and ⁇ 311, then when the cell 2 is the same as the T310, N310, and N311 of the cell 1, it is not sent to the UE, and the UE considers that the cell 2 is the same as the cell 1; When the T310, the N310, and the N311 of the cell 1 are different, the T310, the N310, and the N311 are sent to the UE, and the UE performs subsequent operations according to the specific processes of the T310, N310, and N311 and the radio link failure detection. CC performs radio link failure detection).
  • the UE uses different parameters for different cells, and separately maintains; if the radio link failure process is uniformly determined based on all component carriers, The UE can only use one set of parameters, which can be a network.
  • the configuration of the signaling display may also be pre-agreed by the UE and the network.
  • the base station can be configured to the UE through dedicated signaling, and the base station can configure the same or different TimeAlignmentTimer for the two according to the characteristics of the cell 1 and the cell 2. If the TimeAlignmentTimer of the cell 2 is the same as the TimeAlignmentTimer of the cell 1, it is not sent to the UE, and the UE considers that the cell 2 is the same as the cell 1; if the TimeAlignmentTimer of the cell 2 is different from the TimeAlignmentTimer of the cell 1, the TimeAlignmentTimer of the cell 2 is sent to the UE. The UE performs subsequent operations according to the TimeAlignmentTimer and the specific process of random access.
  • the UE uses different parameters for different cell/cell groups and maintains separately; if the radio link fails process
  • the UE can use only one TimeAlignmentTimer, which can be configured by the network through signaling, or pre-agreed by the UE and the network.
  • embodiment of the present invention is not limited to the LTE-A system, and other embodiments capable of carrier aggregation transmission are also applicable to the embodiments of the present invention.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.
  • the network side determines that the information type in the aggregated transmission information set corresponding to the primary serving cell where the user terminal is located is the same, and the information type of the aggregated transmission information set corresponding to the primary serving cell where the user terminal is located is the same.
  • the aggregated transmission information set is a set of information used in the carrier aggregation transmission in the system information corresponding to the carrier aggregation cell; the network side sends the determined aggregation to the user terminal. transmit information.
  • the network side can send system information to the user terminal, so that the user terminal can know the system information of each carrier aggregation cell, so that carrier aggregation transmission and multi-carrier switching can be implemented in the LTE-A system. Further, the network side only informs the user terminal of the system information related to the carrier aggregation transmission, thereby reducing the signaling overhead and saving the consumption and power of the user terminal.

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Description

一种发送系统信息的方法、 系统和设备 本申请要求在 2009年 10月 28日提交中国专利局、 申请号为 200910236749.5、发明名称为
"一种发送系统信息的方法、 系统和设备"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
本发明涉及无线通信技术， 特别涉及一种发送系统信息的方法、 系统和 设备。 背景技术
目前的 LTE ( Long Term Evolution, 长期演进）系统， 一个小区中只能有 一个载波， 并且最大带宽为 20Mhz， 如图 1A所示。
对于 LTE-A ( LTE-Advanced, 长期演进升级） 系统， LTE-A系统的峰值 速率比 LTE 系统有了很大的提高， LTE-A 系统要求达到下行 IGbps, 上行 500Mbps。 显然， 20Mhz的带宽已经无法满足这种需求。 为了让 LTE-A系统 能够符合要求， 引入 CA ( Carrier Aggregation, 栽波聚合 )技术， 即同一 eNB (演进基站）下， 将连续或不连续的多个栽波集中在一起， 在需要时同时为 终端服务， 以提供所需的速率， 因此， LTE-A 系统是一个多栽波系统。 为了 保证 LTE-A系统的终端能在每一个聚合的载波下工作， 每一个栽波最大不超 过 20Mhz。 LTE-A的 CA技术， 如图 IB所示。
图 1B中的 L E-A系统中， 聚合了 4个栽波。 基站可以同时在 4个栽波 上和终端进行数据传输， 以提高系统吞吐量。
LTE-A系统由于需要扩展用户终端可使用的带宽， 由此引入了 CA技术， 即将同一个 eNB下的多个连续或不连续的栽波聚合在一起， 同时为用户终端 服务。 这些聚合在一起的载波又称为成员载波（component carrier, CC )„ 在 LTE系统中， 用户终端（ UE， User Equipment )要发送数据或接收数 据， 以及用户终端在进行小区切换时， 必须知道当前小区的 MIB ( Master Information Block, 主系统信息块）， SIB ( System Information Block, 系统信 息块） 1和 SIB2消息的内容。
由于 LTE-A系统中有多个栽波， 在进行载波聚合传输时， 用户终端同样 需要知道每个栽波聚合小区的系统信息， 但是目前还没有技术方案能够使用 户终端获知每个小区的系统信息。 发明内容
本发明实施例提供一种获取系统信息的方法、 系统和设备， 用以将系统 信息通知用户终端， 从而在 LTE-A系统中实现载波聚合传输。
本发明实施例提供的一种发送系统信息的方法， 该方法包括：
网络侧从每个栽波聚合小区对应的聚合传输信息集合中， 确定与用户终 端所在主服务小区对应的聚合传输信息集合中信息类型相同， 且信息内容不 同的聚合传输信息， 所迷聚合传输信息集合是栽波聚合小区对应的系统信息 中在载波聚合传输时使用的信息组成的集合；
所述网络侧向所述用户终端发送确定的聚合传输信息。
本发明实施例提供的一种栽波聚合传输方法， 该方法包括：
用户终端接收来自网络侧的聚合传输信息；
用户终端根据所述聚合传输信息进行栽波聚合传输。
本发明实施例提供的一种网络侧设备， 该网络测设备包括：
信息确定模块， 用于从每个载波聚合小区对应的聚合传输信息集合中， 确定与用户终端所在主服务小区对应的聚合传输信息集合中信息类型相同， 且信息内容不同的聚合传输信息， 所述聚合传输信息集合是栽波聚合小区对 应的系统信息中在栽波聚合传输时使用的信息组成的集合；
发送模块， 用于向所述用户终端发送确定的聚合传输信息。
本发明实施例提供的一种用户终端， 该用户终端包括：
接收模块， 用于接收来自网络侧的聚合传输信息；
传输模块， 用于根据所述聚合传输信息进行栽波聚合传输。
本发明实施例网络侧从每个栽波聚合小区对应的聚合传输信息集合中， 确定与用户终端所在主服务小区对应的聚合传输信息集合中信息类型相同， 且信息内容不同的聚合传输信息， 向用户终端发送确定的聚合传输信息， 其 中聚合传输信息集合是载波聚合小区对应的系统信息中在栽波聚合传输时使 用的信息组成的集合。
由于在 LTE-A系统中， 网络侧能够将系统信息发送给用户终端， 使得用 户终端能够知道每个载波聚合小区的系统信息， 从而可以在 LTE-A系统中实 现载波聚合传输；
进一步的， 网络侧仅将与栽波聚合传输相关的系统信息告知用户终端， 从而可以减少信令开销， 节省用户终端的消耗和电量。 附图说明
图 1 A为 LTE系统中栽波示意图；
图 1B为 LTE-A系统中载波示意图；
图 2为本发明实施例发送系统信息的系统结构示意图；
图 3为本发明实施例网络侧设备的结构示意图；
图 4为本发明实施例用户终端的结构示意图；
图 5为本发明实施例发送系统信息的方法流程示意图；
图 6为本发明实施例载波激活场景示意图。 具体实施方式
在本发明实施例提供的技术方案中， 网络侧从每个栽波聚合小区对应的 聚合传输信息集合中， 确定与用户终端所在主服务小区对应的聚合传输信息 集合中信息类型相同， 且信息内容不同的聚合传输信息， 向用户终端发送确 定的聚合传输信息， 其中聚合传输信息集合是栽波聚合小区对应的系统信息 中在载波聚合传输时使用的信息组成的集合。 由于在 LTE-A系统中， 网络側 能够将系统信息发送给用户终端， 使得用户终端能够知道每个栽波聚合小区 的系统信息， 从而可以在 LTE-A系统中实现栽波聚合传输和多载波切换。 其中， 主服务小区是用户终端接入的， 并且能够为用户终端提供安全性 输入和 NAS ( Non Access Stratum, 非接入层 )移动性信息的小区„
本发明实施例的方案可以应用在多个场景下， 比如载波激活场景、 多栽 波切换场景等。
如果应用在载波激活场景， 用户终端所在主服务小区是用户终端当前接 入的主服务小区；
相应的， 载波聚合小区是能够与用户终端当前接入的主服务小区能够进 行栽波聚合传输的小区。
如果应用在多栽波切换场景， 用户终端所在主^^务小区是用户终端切换 前接入的主服务小区或者切换后接入的主服务小区；
相应的， 载波聚合小区是能够与用户终端切换后接入的主服务小区能够 进行载波聚合传输的小区。
小区对应的 MIB、 SIB1和 SIB2中包括多种系统信息， 但是并不是每种 系统信息都与载波聚合传输相关。
本发明实施例将与栽波聚合传输相关的系统信息作为聚合传输信息； 小 区对应的系统信息中在栽波聚合传输时使用的信息组成的集合作为聚合传输 信息集合。
进一步的， 对聚合传输信息集合进行划分， 分成第一聚合传输信息和第 二聚合传输信息。
其中， 第一聚合传输信息是任意两个小区对应的聚合传输信息的信息内 容在发生变化时， 变化前后的信息内容都相同的聚合传输信息， 以及都不相 同的聚合传输信息。 也就是说， 小区间必须相同的聚合传输信息和小区间肯 定不同的聚合传输信息作为第一聚合传输信息
小区间必须相同的聚合传输信息包括但不限于下列信息中的一种或多 种： SFN ( SystemFrameNumber, 系统帧号）、 TDD ( Time Division Duplex, 时分双工）配置。
小区间肯定不同的聚合传输信息包括但不限于下列信息中的一种或多 种： 小区下行工作频点（dl-freq )、 ECGI ( E-UTRAN Cell Global ID, 小区全 球标识； E-UTRAN: Evolved Universal Terrestrial Radio Access Network, 演进 的全球地面无线接入网）。
第二聚合传输信息是聚合传输信息集合中除第一聚合传输信息之外的聚 合传输信息。 也就是说， 第二聚合传输信息是栽波间可能相同， 也可能不同 的的聚合传输信息， 即任意两个小区对应的聚合传输信息的信息内容在发生 变化时， 变化前相同变化后不同， 或者变化前不同变化后相同。
栽波间可能相同， 也可能不同的的聚合传输信息包括但不限于下列信息 中的一种或多种：
MIB中的小区下行带宽（ dl-Bandwidth ), PHICH ( Physical Hybrid-ARQ Indicator Channel, 物理 HARQ指示信道； HARQ: Hybrid Automatic Repeat Request混合自动重复请求）配置。 SIB1中的 UE上行传输功率限制（ P-max )， 小区所在频带 （ freqBandlndicator )。 SIB2 中的无线资源公共配置 ( radioResourceConfigCommon )， UE定时器和常数 ( ue-Timers AndConstants , 包括 Τ300、 Τ301、 Τ310、 Τ311、 Ν310、 N311等）， 频率信息（freqlnfo ) 中 的上行频率 （ul-CarrierFreq )、 上行带宽 （ul-Bandwidth )和附加频率扩散 ( additionalSpectrumEmission ), 定时提前定时器 ( TimeAlignmentTimer )。
实施中， 针对不同状态的用户终端， 第二聚合传输信息也可以不同， 比 如 T300是用于 RRC ( Radio Resource Control,无线资源控制）连接建立过程， 而对于处于连接状态的用户终端， 不会再发起 RRC连接建立过程， 因此对于 处于连接状态的用户终端对应的第二聚合传输信息中可以不包括 T300。
下面结合说明书附图对本发明实施例作进一步详细描述。
如图 2所示， 本发明实施例发送系统信息的系统包括： 网络侧设备 10和 用户终端 20。
网络侧设备 10， 用于从每个栽波聚合小区对应的聚合传输信息集合中， 确定与用户终端所在主服务小区对应的聚合传输信息集合中信息类型相同， 且信息内容不同的聚合传输信息， 发送确定的聚合传输信息， 其中聚合传输 信息集合是栽波聚合小区对应的系统信息中在栽波聚合传输时使用的信息组 成的集合。
用户终端 20, 用于接收来自网络側设备 10的聚合传输信息。
由于聚合传输信息集合中有多个聚合传输信息， 用户终端 20知道主服务 小区的每个聚合传输信息， 所以网络侧设备 10只需要发送与主服务小区不同 的聚合传输信息就可以， 与主服务小区相同的聚合传输信息不需要发送， 这 样可以进一步节省开销；
相应的， 用户终端 20在收到聚合传输信息后， 将收到的聚合传输信息作 为对应载波聚合小区的聚合传输信息， 对于没有收到的聚合传输信息， 将主 服务小区的聚合传输信息作为栽波聚合小区的聚合传输信息。
比如： 有载波聚合小区八、 B和 C， 其中载波聚合小区 A是主服务小区， 而载波聚合小区 B的下行带宽与主服务小区相同， 载波聚合小区 C的最大发 射功率与主服务小区相同 ,则网络侧设备 10就不发送栽波聚合小区 B对应的 下行带宽， 以及不发送栽波聚合小区 C对应的最大发射功率； 用户终端 20收 到的发现没有栽波聚合小区 B对应的下行带宽和栽波聚合小区 C对应的最大 发射功率， 则用户终端 20就知道将主服务小区的下行带宽作为载波聚合小区 B的下行带宽， 将主服务小区的最大发射功率作为载波聚合小区 C的最大发 射功率。
上面介绍了聚合传输信息集合包括第一聚合传输信息和第二聚合传输信 息， 则网络侧设备 10需要确定每个栽波聚合小区对应的第一聚合传输信息中 变化前后的信息内容都不相同的第一聚合传输信息， 以及确定当前每个载波 聚合小区对应的第二聚合传输信息中， 与当前主服务小区对应的第二聚合传 输信息的信息类型相同， 且信息内容不同的第二聚合传输信息， 将确定的第 一聚合传输信息和第二聚合传输信息作为确定的聚合传输信息。
由于第一聚合传输信息中变化前后的信息内容都不相同的第一聚合传输 信息是每个小区间肯定不同的聚合传输信息， 所以这部分聚合传输信息必须 发送； 而第二聚合传输信息就有可能有与当前主服务小区对应的第二聚合传 输信息的信息类型相同， 且信息内容不同的第二聚合传输信息。 当然也可能 没有与当前主服务小区对应的第二聚合传输信息的信息类型相同， 且信息内 容不同的第二聚合传输信息。
对于第二聚合传输信息可以采用增量（delta )信令的方式通知用户终端 20， 即当聚合传输信息相同时， 不通知用户终端 20聚合传输信息， 只通知指 示信息； 当聚合传输信息不同时， 通知用户终端 20聚合传输信息。
具体的， 如果有与当前主服务小区对应的第二聚合传输信息的信息类型 相同， 且信息内容不同的第二聚合传输信息， 则网络側设备 10发送确定的第 二聚合传输信息就可以； 如果没有与当前主服务小区对应的第二聚合传输信 息的信息类型相同， 且信息内容不同的第二聚合传输信息， 则网络侧设备 10 需要将第一指示信息作为确定的第二聚合传输信息， 其中第一指示信息用于 指示用户终端将主服务小区对应的第二聚合传输信息作为栽波聚合小区对应 的第二聚合传输信息。 相应的， 用户终端 20在收到第一指示信息后， 就会将 主服务小区的第二聚合传输信息作为载波聚合小区的第二聚合传输信息。
第一指示信息可以是 lbit数据， 比如是 0,也可以是一組特殊的比特， 比 如 01010101......。 （下面介绍的第二指示信息-第四指示信息与第一指示信 息类似， 如果不同的指示信息采用同一个数字表示， 则可以通过不同的专用 信令区分， 也可以通过在同一个专用信令的不同区域区分。）
在具体实施过程中， 网络侧设备 10可以将第一聚合传输信息和第二聚合 传输信息置于一个专用信令中发送， 也可以置于两个专用信令中发送。
如果应用场景是栽波激活场景，则专用信令可以是： RRC连接重配消息， 栽波聚合激活消息等。
如果应用场景是多载波切换场景，则专用信令可以是: RRC连接重配消息、 切换命令等。
其中， 第二聚合传输信息还可以包括小区级第二聚合传输信息和用户级 第二聚合传输信息， 小区级第二聚合传输信息是在一个小区内有效， 应用于 小区本身的配置信息， 包括但不限于下列信息中的一种或多种： MIB中的小区下行带宽（dl-Bandwidth )， PHICH配置。 SIB1中的 UE上 行传输功率限制 （P-max )， 小区所在频带（freqBandIndicator )。 SIB2中的无 线资源公共配置（ radioResourceConfigCommon )， 频率信息（freqlnfo ) 中的 上行频率 （ ul-CarrierFreq )、 上行带宽 （ul-Bandwidth ) 和附加频率扩散 ( additionalSpectrumEmission ),
用户级第二聚合传输信息是在一个小区内有效， 应用于小区内所有用户 的配置信息， 包括但不限于下列信息中的一种或多种：
UE定时器和常数 ( ue-TimersAndConstants, 包括 T300、 Τ301、 Τ310、 Τ311、 Ν310、 N311等）， 定时提前定时器（ TimeAlignmentTimer )。
网络侧设备 10可以通过至少一个专用信令向用户终端发送小区级第二聚 合传输信息、 用户级第二聚合传输信息和第一聚合传输信息。 比如网络侧设 备 10可以通过三个专用信令发送（即一个专用信令承栽小区级第二聚合传输 信息， 一个专用信令承栽用户级第二聚合传输信息， 一个专用信令承载第一 聚合传输信息）； 也可以通过两个专用信令发送（即一个专用信令承栽第一聚 合传输信息， 另一个专用信令承载小区级第二聚合传输信息和用户级第二聚 合传输信息）； 还可以通过一个专用信令发送。
在具体实施过程中， 如果确定每个栽波聚合小区对应的小区级第二聚合 传输信息中， 没有与主服务小区对应的小区级第二聚合 #输信息的信息类型 相同， 且信息内容不同的小区级第二聚合传输信息， 网络侧设备 10可以将第 二指示信息作为确定的小区级第二聚合传输信息， 其中第二指示信息用于指 示用户终端将主服务小区对应的小区级第二聚合传输信息作为载波聚合小区 对应的小区级第二聚合传输信息；
如果确定每个栽波聚合小区对应的用户级第二聚合传输信息中， 没有与 主服务小区对应的用户级第二聚合传输信息的信息类型相同， 且信息内容不 同的用户级第二聚合传输信息， 网络側设备 10可以将第三指示信息作为确定 的用户级第二聚合传输信息， 其中第三指示信息用于指示用户终端将主服务 小区对应的用户级第二聚合传输信息作为栽波聚合小区对应的用户级第二聚 合传输信息。
对于网络側设备 10发送用户级第二聚合传输信息的方式有很多种， 下面 列举几种：
方式一、 网络側设备 10从载波聚合小区中选择至少一个栽波聚合小区， 并将选择的栽波聚合小区对应的用户级第二聚合传输信息发送给用户终端， 其中发送给用户终端的用户级第二聚合传输信息是与用户终端所在主服务小 区对应的用户级第二聚合传输信息的信息类型相同， 且信息内容不同的用户 级第二聚合传输信息；
相应的， 用户终端 20根据收到的至少一个栽波聚合小区的用户级第二聚 合传输信息， 确定进行栽波聚合传输的所有载波聚合小区对应的用户级第二 聚合传输信息。
这种方式下， 网络侧设备 10在确定了与用户终端所在主服务小区对应的 用户级第二聚合传输信息的信息类型相同， 且信息内容不同的用户级第二聚 合传输信息后 , 可以只发送确定的一个栽波聚合小区的用户级第二聚合传输 信息； 也可以发送确定的多个栽波聚合小区的用户级第二聚合传输信息； 还 可以发送确定的全部栽波聚合小区的用户级第二聚合传输信息（这种情况与 发送小区级第二聚合传输信息相同）。
具体网络侧设备 10发送哪个或哪些载波聚合小区的用户级第二聚合传输 信息， 可以由网络側设备 10或用户终端 10根据小区自身特性确定， 也可以 由网络侧设备 10和用户终端 20之间进行协商确定。
比如根椐小区自身特性确定， 主要取决于小区对应成员载波的信道传输特 性， 假设两个载波聚合小区对应的成员载波信道特性相差较大， 用户不能使 用相同的无线链路失败检测的定时器（T310 )和计数器（N310、 N311 )对这 两个小区的成员载波进行无线链路信道质量监测， 那么这两个小区的无线链 路失败检测的定时器（T310 )和计数器（N310、 N311 )就需要都发送给用户， 否则， 选择其中的一个发送给用户即可。
如果网络侧设备 10发送部分栽波聚合小区对应的用户级第二聚合传输信 息， 则网络侧设备 10可以通知用户终端 20发送的部分栽波聚合小区中哪个 载波聚合小区与剩余部分的哪个栽波聚合小区的用户级第二聚合传输信息相 同。 比如有四个栽波聚合小区 A、 B、 C和 D， 其中栽波聚合小区 A和栽波聚 合小区 B的用户级笫二聚合传输信息相同，则网络侧设备 10只需要发送栽波 聚合小 £ A、 C和 D的用户级第二聚合传输信息， 然后通知用户终端 20栽波 聚合小区 A和 B相同， 则用户终端 20收到载波聚合小区 A的用户级第二聚 合传输信息后就知道栽波聚合小区 B的用户级第二聚合传输信息。
如果网络侧设备 10发送全部栽波聚合小区对应的用户级第二聚合传输信 息， 则用户终端 20收到就将收到的用户级第二聚合传输信息作为对应栽波聚 合小区的用户级第二聚合传输信息。
在具体实施过程中， 网络侧设备 10和用户终端 20可以根据专用信令的 不同区域区分栽波聚合小区的用户级第二聚合传输信息（比如区域一是栽波 聚合小区一的用户级第二聚合传输信息， 区域二是栽波聚合小区二的用户级 第二聚合传输信息依此类推）； 还可以由网络側设备 10在用户级第二聚合传 输信息之前添加能够区分是哪个栽波聚合小区的标识， 比如小区标识或网络 侧设备 10和用户终端 20约定好的标识等。
方式二、网络侧设备 10在载波聚合小区对应用户级第二聚合传输信息中， 有与用户终端所在主服务小区对应的用户级第二聚合传输信息的信息类型相 同， 且信息内容不同的用户级第二聚合传输信息时， 将第四指示信息作为用 户级第二聚合传输信息向用户终端发送， 其中第四指示信息用于指示用户终 端将最近一次确定的栽波聚合小区的用户级第二聚合传输信息作为当前的用 户级第二聚合传输信息。
这种方式下， 网络侧设备 10在确定了与用户终端所在主服务小区对应的 用户级第二聚合传输信息的信息类型相同， 且信息内容不同的用户级第二聚 合传输信息后， 将第四指示信息作为用户级第二聚合传输信息向用户终端发 送； 相应的， 用户终端 20在收到第四指示信息后， 就知道将最近一次确定的 栽波聚合小区的用户级第二聚合传输信息作为当前的用户级第二聚合传输信 息， 即不改变现有的每个栽波聚合小区的用户级第二聚合传输信息。
对于用户级第二聚合传输信息， 还可以包括公共配置的用户级第二聚合 传输信息和 /或专用配置的用户级第二聚合传输信息。
公共配置的用户级第二聚合传输信息是在一个小区内有效， 应用于小区 内所有用户的配置信息， 包括但不限于下列信息中的一种或多种：
UE定时器和常数 ( ue-TimersAndConstants, 包括 T300、 Τ301、 Τ310、 Τ311、 Ν310、 N311等）， 公共定时提前定时器（ TimeAlignmentTimer )。
专用配置的用户级第二聚合传输信息是只针对一个用户有效的配置信 息， 包括但不限于下列信息中的一种或多种：
无线链路失败定时器和常数（ RLF-Timers AndConstants ,包括 T301、 Τ310、 Τ311、 Ν310、 Ν311等）， 专用定时提前定时器（ TimeAlignmentTimer )。
网络侧设备 10在确定只需要某个用户终端 20更新用户级第二聚合传输 信息时， 向该用户终端 20发送专用配置的用户级第二聚合传输信息； 在确定 需要小区中的每个用户终端 20更新用户级第二聚合传输信息时， 向该小区中 的每个用户终端 20发送公共配置的用户级第二聚合传输信息。
用户终端 20在收到专用配置的用户级第二聚合传输信息后， 将收到的专 用配置的用户级第二聚合传输信息替换已收到的类型相同的公共配置的用户 级第二聚合传输信息。
其中， 本发明实施例的网络侧设备可以 站， 也可以是网络侧其他设 备， 还可以是网络侧新的设备。
如果本发明实施例的网络侧设备是基站， 且应用在载波激活场景时， 该 基站是用户终端当前接入的主服务小区所在的基站； 如果本发明实施例的网 络侧设备是基站， 且应用在多栽波切换场景时， 该基站是用户终端切换后接 入的主服务小区所在的基站 (即切换后的目标基站）。
如图 3所示， 本发明实施例网络側设备包括： 信息确定模块 100和发送 模块 110。
信息确定模块 100， 用于从每个载波聚合小区对应的聚合传输信息集合 1547 中， 确定与用户终端所在主服务小区对应的聚合传输信息集合中信息类型相 同， 且信息内容不同的聚合传输信息， 其中聚合传输信息集合是载波聚合小 区对应的系统信息中在栽波聚合传输时使用的信息组成的集合。
发送模块 110，用于向用户终端发送息确定模块 100确定的聚合传输信息。 其中， 聚合传输信息集合包括第一聚合传输信息和第二聚合传输信息， 第一聚合传输信息是任意两个小区对应的聚合传输信息的信息内容在发生变 化时， 变化前后的信息内容都相同的聚合传输信息， 以及都不相同的聚合传 输信息； 第二聚合传输信息是聚合传输信息集合中除第一聚合传输信息之外 的聚合传输信息， 则信息确定模块 100确定每个栽波聚合小区对应的第一聚 合传输信息中变化前后的信息内容都不相同的第一聚合传输信息， 以及确定 当前每个载波聚合小区对应的第二聚合传输信息中， 与当前主服务小区对应 的第二聚合传输信息的信息类型相同， 且信息内容不同的第二聚合传输信息， 将确定的第一聚合传输信息和第二聚合传输信息作为确定的聚合传输信息。
其中， 信息确定模块 100在确定当前每个载波聚合小区对应的第二聚合 传输信息中， 没有与当前主服务小区对应的第二聚合传输信息的信息类型相 同， 且信息内容不同的第二聚合传输信息时， 将第一指示信息作为确定的第 二聚合传输信息， 第一指示信息用于指示用户终端将主服务小区对应的第二 聚合传输信息作为栽波聚合小区对应的第二聚合传输信息。
其中， 第二聚合传输信息包括小区级第二聚合传输信息和用户级第二聚 合传输信息； 发送模块 110通过至少一个专用信令向用户终端发送小区级第 二聚合传输信息、 用户级第二聚合传输信息和确定的第一聚合传输信息。
其中， 信息确定模块 100在确定每个载波聚合小区对应的小区级第二聚 合传输信息中， 没有与主服务小区对应的小区级第二聚合传输信息的信息类 型相同， 且信息内容不同的小区级第二聚合传输信息时， 将第二指示信息作 为确定的小区级第二聚合传输信息， 第二指示信息用于指示用户终端将主月 I 务小区对应的小区级第二聚合传输信息作为栽波聚合小区对应的小区级第二 聚合传输信息； 在确定每个栽波聚合小区对应的用户级第二聚合传输信息中， 没有与主服务小区对应的用户级第二聚合传输信息的信息类型相同， 且信息 内容不同的用户级第二聚合传输信息时， 将第三指示信息作为确定的用户级 第二聚合传输信息， 第三指示信息用于指示用户终端将主服务小区对应的用 户级第二聚合传输信息作为载波聚合小区对应的用户级第二聚合传输信息。
其中， 发送模块 110从栽波聚合小区中选择至少一个载波聚合小区， 并 将选择的载波聚合小区对应的用户级第二聚合传输信息发送给用户终端， 其 中发送给用户终端的用户级第二聚合传输信息是与用户终端所在主服务小区 对应的用户级第二聚合传输信息的信息类型相同， 且信息内容不同的用户级 第二聚合传输信息； 或
在栽波聚合小区对应用户级第二聚合传输信息中 , 有与用户终端所在主 服务小区对应的用户级第二聚合传输信息的信息类型相同， 且信息内容不同 的用户级第二聚合传输信息时， 将第四指示信息作为用户级第二聚合传输信 息向用户终端发送， 第四指示信息用于指示用户终端将最近一次确定的栽波 聚合小区的用户级第二聚合传输信息作为当前的用户级第二聚合传输信息。
如图 4所示，本发明实施例用户终端包括：接收模块 200和传输模块 210。 接收模块 200, 用于接收来自网络侧的聚合传输信息。
传输模块 210, 用于根据聚合传输信息进行载波聚合传输。
具体的， 当用户获取聚合传输信息之后， 将会应用这些信息对相关的栽 波聚合小区进行参数配置， 然后利用这些配置来进行数据收发， 实现与网络 侧的栽波聚合传输。
其中， 如果接收模块 200收到至少一个载波聚合小区的用户级第二聚合 传输信息， 则接收模块 200根据收到的至少一个栽波聚合小区的用户级第二 聚合传输信息， 确定进行载波聚合传输的所有栽波聚合小区对应的用户级第 二聚合传输信息。
进一步的， 如果接收模块 200收到专用配置的用户级第二聚合传输信息， 则接收模块 200将收到的专用配置的用户级第二聚合传输信息替换已收到的 类型相同的公共配置的用户级第二聚合传输信息。 如图 5所示， 本发明实施例发送系统信息的方法包括下列步骤： 步骤 501、 网络侧从每个栽波聚合小区对应的聚合传输信息集合中，确定 与用户终端所在主服务小区对应的聚合传输信息集合中信息类型相同， 且信 息内容不同的聚合传输信息， 其中聚合传输信息集合是栽波聚合小区对应的 系统信息中在载波聚合传输时使用的信息組成的集合。
步驟 502、 网络侧向用户终端发送确定的聚合传输信息。
其中， 步骤 502之后还可以进一步包括：
步骤 503、用户终端根据收到的聚合传输信息确定栽波聚合小区的聚合传 输信息。
由于聚合传输信息集合中有多个聚合传输信息， 用户终端知道主服务小 区的每个聚合传输信息， 所以网络侧只需要发送与主服务小区不同的聚合传 输信息就可以， 与主服务小区相同的聚合传输信息不需要发送， 这样可以进 一步节省开销；
相应的， 步骤 503 中用户终端在收到聚合传输信息后， 将收到的聚合传 输信息作为对应载波聚合小区的聚合传输信息， 对于没有收到的聚合传输信 息， 将主服务小区的聚合传输信息作为栽波聚合小区的聚合传输信息。
比如： 有载波聚合小区八、 B和 C, 其中载波聚合小区 A是主服务小区， 而载波聚合小区 B的下行带宽与主服务小区相同， 载波聚合小区 C的最大发 射功率与主服务小区相同，则网络侧设备 10就不发送栽波聚合小区 B对应的 下行带宽， 以及不发送载波聚合小区 C对应的最大发射功率； 用户终端 20收 到的发现没有载波聚合小区 B对应的下行带宽和栽波聚合小区 C对应的最大 发射功率， 则用户终端 20就知道将主服务小区的下行带宽作为栽波聚合小区 B的下行带宽， 将主服务小区的最大发射功率作为栽波聚合小区 C的最大发 射功率。
上面介绍了聚合传输信息集合包括第一聚合传输信息和第二聚合传输信 息， 则步骤 501 中， 网络侧需要确定每个栽波聚合小区对应的第一聚合传输 信息中变化前后的信息内容都不相同的笫一聚合传输信息， 以及确定当前每 个载波聚合小区对应的第二聚合传输信息中， 与当前主服务小区对应的第二 聚合传输信息的信息类型相同， 且信息内容不同的第二聚合传输信息， 将确 定的第一聚合传输信息和第二聚合传输信息作为确定的聚合传输信息。
由于第一聚合传输信息中变化前后的信息内容都不相同的第一聚合传输 信息是每个小区间肯定不同的聚合传输信息， 所以这部分聚合传输信息必须 发送； 而笫二聚合传输信息就有可能有与当前主服务小区对应的第二聚合传 输信息的信息类型相同， 且信息内容不同的第二聚合传输信息。 当然也可能 没有与当前主服务小区对应的第二聚合传输信息的信息类型相同， 且信息内 容不同的笫二聚合传输信息。
对于笫二聚合传输信息可以采用增量信令的方式通知用户终端， 即当聚 合传输信息相同时， 不通知用户终端聚合传输信息， 只通知指示信息； 当聚 合传输信息不同时， 通知用户终端聚合传输信息。
具体的， 如果有与当前主服务小区对应的第二聚合传输信息的信息类型 相同， 且信息内容不同的第二聚合传输信息， 则步骤 502 中， 网络側发送确 定的第二聚合传输信息就可以； 如果没有与当前主服务小区对应的第二聚合 传输信息的信息类型相同，且信息内容不同的第二聚合传输信息，则步骤 502 中， 网络侧需要将第一指示信息作为确定的第二聚合传输信息， 其中第一指 示信息用于指示用户终端将主服务小区对应的第二聚合传输信息作为载波聚 合小区对应的笫二聚合传输信息。 相应的， 步驟 503 中用户终端在收到第一 指示信息后， 就会将主服务小区的笫二聚合传输信息作为栽波聚合小区的第 二聚合传输信息。
第一指示信息可以是 lbit数据， 比如是 0，也可以是一组特殊的比特， 比 如 01010101......。 （下面介绍的笫二指示信息 ~第四指示信息与第一指示信 息类似， 如果不同的指示信息采用同一个数字表示， 则可以通过不同的专用 信令区分， 也可以通过在同一个专用信令的不同区域区分。）
步骤 502中， 网络侧可以将第一聚合传输信息和第二聚合传输信息置于 一个专用信令中发送， 也可以置于两个专用信令中发送。 其中， 第二聚合传输信息还可以包括小区级第二聚合传榆信息和用户级 第二聚合传输信息。
步骤 502 中， 网络侧可以通过至少一个专用信令向用户终端发送小区级 第二聚合传输信息、 用户级第二聚合传输信息和第一聚合传输信息。 比如网 络侧可以通过三个专用信令发送（即一个专用信令承载小区级第二聚合传输 信息， 一个专用信令承载用户级第二聚合传输信息， 一个专用信令承栽第一 聚合传输信息）； 也可以通过两个专用信令发送（即一个专用信令承栽第一聚 合传输信息， 另一个专用信令承栽小区级第二聚合传输信息和用户级第二聚 合传输信息）； 还可以通过一个专用信令发送。
步骤 501 中， 如果确定每个栽波聚合小区对应的小区级第二聚合传输信 息中， 没有与主服务小区对应的小区级第二聚合传输信息的信息类型相同， 且信息内容不同的小区级第二聚合传输信息， 网络侧可以将第二指示信息作 为确定的小区级第二聚合传输信息， 其中第二指示信息用于指示用户终端将 主服务小区对应的小区級第二聚合传输信息作为栽波聚合小区对应的小区级 第二聚合传输信息；
如果确定每个栽波聚合小区对应的用户级第二聚合传输信息中， 没有与 主服务小区对应的用户级第二聚合传输信息的信息类型相同， 且信息内容不 同的用户级第二聚合传输信息， 网络侧可以将第三指示信息作为确定的用户 级第二聚合传输信息， 其中第三指示信息用于指示用户终端将主服务小区对 应的用户级第二聚合传输信息作为栽波聚合小区对应的用户级第二聚合传输 信息。
步骤 502中， 对于网络侧发送用户级第二聚合传输信息的方式有很多种， 下面列举几种：
方式一、 网络侧从栽波聚合小区中选择至少一个载波聚合小区， 并将选 择的载波聚合小区对应的用户级第二聚合传输信息发送给用户终端， 其中发 送给用户终端的用户级第二聚合传输信息是与用户终端所在主服务小区对应 的用户级第二聚合传输信息的信息类型相同， 且信息内容不同的用户级第二 聚合传输信息；
相应的， 步骤 503 中用户终端根据收到的至少一个栽波聚合小区的用户 级第二聚合传输信息， 确定进行载波聚合传输的所有栽波聚合小区对应的用 户级第二聚合传输信息。
这种方式下， 网络侧在确定了与用户终端所在主^^务小区对应的用户级 第二聚合传输信息的信息类型相同， 且信息内容不同的用户级第二聚合传输 信息后， 可以只发送确定的一个载波聚合小区的用户级第二聚合传输信息； 也可以发送确定的多个载波聚合小区的用户级第二聚合传输信息； 还可以发 送确定的全部栽波聚合小区的用户级第二聚合传输信息（这种情况与发送小 区级第二聚合传输信息相同）。
具体网络側发送哪个或哪些栽波聚合小区的用户级第二聚合传输信息， 可以由网络侧或用户终端根据小区自身特性确定， 也可以由网络侧和用户终 端之间进行协商确定。
如果网络侧发送部分载波聚合小区对应的用户级第二聚合传输信息， 则 网络侧可以通知用户终端发送的部分栽波聚合小区中哪个栽波聚合小区与剩 余部分的哪个载波聚合小区的用户级第二聚合传输信息相同„ 比如有四个载 波聚合小区 A、 B、 C和 D, 其中栽波聚合小区 A和载波聚合小区 B的用户 级第二聚合传输信息相同， 则网络侧只需要发送载波聚合小区 A、 C和 D的 用户级第二聚合传输信息， 然后通知用户终端载波聚合小区 A和 B相同， 则 用户终端收到载波聚合小区 A的用户级第二聚合传输信息后就知道栽波聚合 小区 B的用户级第二聚合传输信息。
如果网络侧发送全部载波聚合小区对应的用户级第二聚合传输信息 , 则 用户终端收到就将收到的用户级第二聚合传输信息作为对应载波聚合小区的 用户级第二聚合传输信息。
在具体实施过程中， 网络侧和用户终端可以 f|L据专用信令的不同区域区 分载波聚合小区的用户级第二聚合传输信息（比如区域一是栽波聚合小区一 的用户级第二聚合传输信息， 区域二是栽波聚合小区二的用户级第二聚合传 输信息依此类推）； 还可以由网络侧在用户级第二聚合传输信息之前添加能够 区分是哪个载波聚合小区的标识， 比如小区标识或网络侧和用户终端约定好 的标识等。
方式二、 网络侧在载波聚合小区对应用户级第二聚合传输信息中， 有与 用户终端所在主服务小区对应的用户级第二聚合传输信息的信息类型相同， 且信息内容不同的用户级第二聚合传输信息时， 将第四指示信息作为用户级 第二聚令传输信息向用户终端发送， 其中第四指示信息用于指示用户终端将 最近一次确定的载波聚合小区的用户级第二聚合传输信息作为当前的用户级 第二聚合传输信息。
这种方式下， 网络侧在确定了与用户终端所在主服务小区对应的用户级 第二聚合传输信息的信息类型相同， 且信息内容不同的用户级第二聚合传输 信息后， 将第四指示信息作为用户级第二聚合传输信息向用户终端发送； 相 应的， 步骤 503 中， 用户终端在收到第四指示信息后， 就知道将最近一次确 定的载波聚合小区的用户级第二聚合传输信息作为当前的用户级第二聚合传 输信息， 即不改变现有的每个栽波聚合小区的用户级第二聚合传输信息。
对于用户级第二聚合传输信息， 还可以包括公共配置的用户级第二聚合 传输信息和 /或专用配置的用户级第二聚合传输信息。
网络侧在确定只需要用户终端更新用户级第二聚合传输信息时， 向该用 户终端发送专用配置的用户级第二聚合传输信息； 在确定需要小区中的每个 用户终端更新用户级第二聚合传输信息时， 向该小区中的每个用户终端发送 公共配置的用户级第二聚合传输信息。
用户终端在收到专用配置的用户级第二聚合传输信息后， 将收到的专用 配置的用户级第二聚合传输信息替换已收到的类型相同的公共配置的用户级 第二聚合传输信息。
本发明实施例发送系统信息的方法也可以作为进行栽波聚合传输中的几 个步骤， 比如步骤 501之前可以是栽波聚合传输的准备步骤， 步骤 503之后 可以是进行载波聚合传输的步骤。 当然， 这些步骤之间的时序关系可以根据 需要进行变化。
下面以本发明实施例的方案应用在载波激活场景下进行详细说明。
如图 6所示，本发明实施例载波激活场景示意图中，假设 UE初始工作在 小区 1 中， 由于业务量增加， UE需要进行 CA传输（即栽波聚合传输）， 基 站 1决定让该 UE聚合小区 1和小区 2来进行 CA传输，然后基站通过专用信 令将小区 2的 CA必要系统信息发送给 UE。
小区 2的下行工作频点是 £2， 与小区 1的 fl肯定不同， 则基站必须将其 发送给 UE， UE按照该信息， 在 G上的小区 2进行 CA传输。
如果小区 2的下行带宽与小区 1相同， 则基站不将其发送给 UE， UE此 时认为两个小区的下行带宽相同，据此进行 CA传输；如果小区 2的下行带宽 与小区 1不同， 则基站将其发送给 UE, UE按照该带宽进行 CA传输。
如果小区 2的 PHICH配置与小区 1不同， 则基站将其发送给 UE, UE按 照该 PHICH配置进行 CA传输。
对于 UE-TimersAndConstants， T300是用于 RRC连接建立过程， T301和 T311是用于 RRC连接重建过程， T310、 Ν310和 Ν311均用于无线链路失败 过程。 由于 UE目前已经处于连接状态， 因此， 不会再发起 R C连接建立过 程， 小区 2的 Τ300不需要发送给 UE。 由于 RRC连接重建过程是基于单小区 的， 因此， T301和 T311在 UE端保存一套即可。 对于 T310、 N310和 N311 , 可以通过专用信令配置给 UE。如果 UE当前没有专用信令配置的 T310、 N310 和 Ν311， 那么当小区 2与小区 1的 T310、 N310和 N311相同时， 不发送给 UE, UE认为小区 2与小区 1的相同； 如果小区 2与小区 1的 T310、 N310和 N311不同时， 将 T310、 N310和 N311发送给 UE， UE根据 T310、 N310和 N311 以及无线链路失败检测的具体过程进行后续操作 ( CA传输的过程中， 会对所有 CC进行无线链路失败检测）。
具体来说， 如果无线链路失败过程是基于每个成员载波单独判断的， 则 UE对不同的小区使用不同的参数， 且分别维护； 如果无线链路失败过程是基 于所有成员载波统一判断的， UE可以只使用一套参数， 该套参数可以是网络 通过信令显示配置的， 也可以是 UE和网络预先约定的。
对于 TimeAlignmentTimer,主要是用于随机接入过程的 (保持上行同步）， 基站可以通过专用信令配置给 UE，基站可以根据小区 1和小区 2的特性， 对 二者配置相同的或者不同的 TimeAlignmentTimer。 如果小区 2 的 TimeAlignmentTimer与小区 1的 TimeAlignmentTimer相同时， 不发送给 UE, UE认为小区 2的与小区 1的相同；如果小区 2的 TimeAlignmentTimer与小区 1的 TimeAlignmentTimer不同时，将小区 2的 TimeAlignmentTimer发送给 UE， UE根据 TimeAlignmentTimer以及随机接入的具体过程进行后续操作。
具体来说， 如果无线链路失败过程是基于每个成员栽波 /成员栽波组单独 判断的， 则 UE对不同的小区 /小区组使用不同的参数， 且分别维护； 如果无 线链路失败过程 于所有成员载^成员栽波组统一判断的， UE可以只使用 —个 TimeAlignmentTimer, 该参数可以是网络通过信令显示配置的， 也可以 是 UE和网络预先约定的。
需要说明的是， 本发明实施例比并不局限于 LTE-A系统， 其他能够进行 载波聚合传输的系统同样适用本发明实施例。
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、 CD-ROM、 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。
尽管已描述了本发明的优选实施例 , 但本领域内的技术人员一旦得知了 基本创造性概念， 则可对这些实施例作出另外的变更和修改。 所以， 所附权 利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
从上述实施例中可以看出： 本发明实施例网络侧从每个栽波聚合小区对 应的聚合传输信息集合中， 确定与用户终端所在主服务小区对应的聚合传输 信息集合中信息类型相同， 且信息内容不同的聚合传输信息， 所迷聚合传输 信息集合是栽波聚合小区对应的系统信息中在栽波聚合传输时使用的信息组 成的集合； 所述网络侧向所述用户终端发送确定的聚合传输信息。
由于在 LTE-A系统中， 网络侧能够将系统信息发送给用户终端， 使得用 户终端能够知道每个载波聚合小区的系统信息， 从而可以在 LTE-A系统中实 现载波聚合传输和多栽波切换； 进一步的， 网络侧仅将与载波聚合传输相关 的系统信息告知用户终端， 从而可以减少信令开销， 节省用户终端的消耗和 电量。
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

权 利 要 求
1、 一种发送系统信息的方法， 其特征在于， 该方法包括：
网络侧从每个载波聚合小区对应的聚合传输信息集合中， 确定与用户终 端所在主服务小区对应的聚合传输信息集合中信息类型相同， 且信息内容不 同的聚合传输信息 , 所述聚合传输信息集合是栽波聚合小区对应的系统信息 中在载波聚合传输时使用的信息组成的集合；
所述网络侧向所述用户终端发送确定的聚合传输信息。
2、 如权利要求 1所述的方法， 其特征在于， 所述聚合传输信息集合包括 第一聚合传输信息和第二聚合传输信息， 所述第一聚合传输信息是任意两个 小区对应的聚合传输信息的信息内容在发生变化时， 变化前后的信息内容都 相同的聚合传输信息， 以及都不相同的聚合传输信息； 所述第二聚合传输信 息是聚合传输信息集合中除第一聚合传输信息之外的聚合传输信息；
所述网络侧确定聚合传输信息包括：
所述网络侧确定每个载波聚合小区对应的第一聚合传输信息中变化前后 的信息内容都不相同的第一聚合传输信息， 以及确定当前每个栽波聚合小区 对应的第二聚合传输信息中， 与当前所述主服务小区对应的第二聚合传输信 息的信息类型相同， 且信息内容不同的第二聚合传输信息；
所述网络侧将确定的第一聚合传输信息和第二聚合传输信息作为确定的 聚合传输信息。
3、 如权利要求 2所述的方法， 其特征在于， 该方法还包括：
所述网络侧在确定当前每个载波聚合小区对应的第二聚合传输信息中， 没有与当前所述主服务小区对应的第二聚合传输信息的信息类型相同， 且信 息内容不同的第二聚合传输信息时， 将第一指示信息作为确定的第二聚合传 输信息， 所述第一指示信息用于指示用户终端将所述主服务小区对应的第二 聚合传输信息作为载波聚合小区对应的第二聚合传输信息。
4、 如权利要求 2所述的方法， 其特征在于， 所述第二聚合传输信息包括 小区级第二聚合传输信息和用户级第二聚合传输信息；
所述网络侧发送聚合传输信息包括：
所述网络侧通过至少一个专用信令向所述用户终端发送小区级第二聚合 传输信息、 用户级第二聚合传输信息和确定的第一聚合传输信息。
5、 如权利要求 4所迷的方法， 其特征在于， 该方法还包括：
所述网络侧在确定每个栽波聚合小区对应的小区级第二聚合传输信息 中， 没有与所述主服务小区对应的小区级第二聚合传输信息的信息类型相同， 且信息内容不同的小区级第二聚合传输信息时， 将第二指示信息作为确定的 小区级第二聚合传输信息， 所述第二指示信息用于指示用户终端将所述主服 务小区对应的小区级第二聚合传输信息作为载波聚合小区对应的小区级第二 聚合传输信息；
所述网络侧在确定每个载波聚合小区对应的用户级第二聚合传输信息 中， 没有与所述主服务小区对应的用户级第二聚合传输信息的信息类型相同， 且信息内容不同的用户级第二聚合传输信息时， 将第三指示信息作为确定的 用户级第二聚合传输信息， 所述第三指示信息用于指示用户终端将所述主服 务小区对应的用户级第二聚合传输信息作为栽波聚合小区对应的用户级第二 聚合传输信息。
6、 如权利要求 4所述的方法， 其特征在于， 所述网络侧向所述用户终端 发送用户级第二聚合传输信息包括：
所述网络侧从载波聚合小区中选择至少一个栽波聚合小区， 并将选择的 栽波聚合小区对应的用户级第二聚合传输信息发送给用户终端， 其中发送给 用户终端的用户级第二聚合传输信息是与用户终端所在主服务小区对应的用 户级第二聚合传输信息的信息类型相同， 且信息内容不同的用户级第二聚合 传输信息； 或
所迷网络侧在载波聚合小区对应用户级第二聚合传输信息中， 有与用户 终端所在主服务小区对应的用户级第二聚合传输信息的信息类型相同， 且信 息内容不同的用户级第二聚合传输信息时， 将第四指示信息作为用户级第二 聚合传输信息向用户终端发送， 所述第四指示信息用于指示用户终端将最近 一次确定的载波聚合小区的用户级第二聚合传输信息作为当前的用户级第二 聚合传输信息。
7、 一种载波聚合传输方法， 其特征在于， 该方法包括：
用户终端接收来自网络侧的聚合传输信息；
用户终端根据所述聚合传输信息进行载波聚合传输。
8、 如权利要求 7所述的方法， 其特征在于， 所述聚合传输信息集合包括 第一聚合传输信息和第二聚合传输信息， 所述第一聚合传输信息是任意两个 小区对应的聚合传输信息的信息内容在发生变化时， 变化前后的信息内容都 相同的聚合传输信息， 以及都不相同的聚合传输信息； 所述第二聚合传输信 息是聚合传输信息集合中除第一聚合传输信息之外的聚合传输信息； 所述第 二聚合传输信息包括小区级第二聚合传输信息和用户级第二聚合传输信息； 用户终端根据收到的至少一个载波聚合小区的用户级第二聚合传输信 息， 确定进行载波聚合传输的所有栽波聚合小区对应的用户级第二聚合传榆 信息。
9、 如权利要求 8所述的方法， 其特征在于， 所述用户级第二聚合传输信 息包括公共配置的用户级第二聚合传输信息和 /或专用配置的用户级第二聚 合传输信息；
进一步包括：
用户终端将收到的专用配置的用户级第二聚合传输信息替换已收到的类 型相同的公共配置的用户级第二聚合传输信息。
10、 一种网络侧设备， 其特征在于， 该网络测设备包括：
信息确定模块， 用于从每个栽波聚合小区对应的聚合传输信息集合中， 确定与用户终端所在主服务小区对应的聚合传输信息集合中信息类型相同， 且信息内容不同的聚合传输信息， 所述聚合传输信息集合是栽波聚合小区对 应的系统信息中在载波聚合传输时使用的信息组成的集合；
发送模块， 用于向所述用户终端发送确定的聚合传输信息。
11、 如权利要求 10所述的网络侧设备， 其特征在于， 所述聚合传输信息 集合包括第一聚合传输信息和第二聚合传输信息 , 所述第一聚合传输信息是 任意两个小区对应的聚合传输信息的信息内容在发生变化时， 变化前后的信 息内容都相同的聚合传输信息， 以及都不相同的聚合传输信息； 所述第二聚 合传输信息是聚合传输信息集合中除第一聚合传输信息之外的聚合传输信 息；
所述信息确定模块用于：
确定每个栽波聚合小区对应的第一聚合传输信息中变化前后的信息内容 都不相同的第一聚合传输信息， 以及确定当前每个栽波聚合小区对应的第二 聚合传输信息中， 与当前所述主服务小区对应的第二聚合传输信息的信息类 型相同， 且信息内容不同的第二聚合传输信息， 将确定的第一聚合传输信息 和第二聚合传输信息作为确定的聚合传输信息。
12、 如权利要求 11所述的网络侧设备， 其特征在于， 所述信息确定模块 还用于：
在确定当前每个栽波聚合小区对应的第二聚合传输信息中， 没有与当前 所述主服务小区对应的第二聚合传输信息的信息类型相同， 且信息内容不同 的第二聚合传输信息时， 将第一指示信息作为确定的第二聚合传输信息， 所 述第一指示信息用于指示用户终端将所述主服务小区对应的第二聚合传输信 息作为载波聚合小区对应的第二聚合传输信息。
13、 如权利要求 11所述的网络侧设备， 其特征在于， 所述第二聚合传输 信息包括小区级第二聚合传输信息和用户级第二聚合传输信息；
所述发送模块用于：
通过至少一个专用信令向所述用户终端发送小区级第二聚合传输信息、 用户级第二聚合传输信息和确定的第一聚合传输信息。
14、 如权利要求 13所述的网络侧设备， 其特征在于， 所述信息确定模块 还用于：
在确定每个栽波聚合小区对应的小区级第二聚合传输信息中， 没有与所 述主服务小区对应的小区级第二聚合传输信息的信息类型相同， 且信息内容 不同的小区级第二聚合传输信息时， 将第二指示信息作为确定的小区级第二 聚合传输信息， 所述第二指示信息用于指示用户终端将所述主服务小区对应 的小区级笫二聚合传输信息作为载波聚合小区对应的小区级第二聚合传输信 息；
在确定每个栽波聚合小区对应的用户级第二聚合传输信息中， 没有与所 述主服务小区对应的用户级第二聚合传输信息的信息类型相同， 且信息内容 不同的用户级第二聚合传输信息时， 将第三指示信息作为确定的用户级第二 聚合传输信息， 所述第三指示信息用于指示用户终端将所述主服务小区对应 的用户级第二聚合传输信息作为载波聚合小区对应的用户级第二聚合传输信
15、如权利要求 13所述的网络侧设备，其特征在于，所述发送模块用于： 从载波聚合小区中选择至少一个载波聚合小区， 并将选择的载波聚合小 区对应的用户级第二聚合传输信息发送给用户终端， 其中发送给用户终端的 用户级第二聚合传输信息是与用户终端所在主服务小区对应的用户级第二聚 合传输信息的信息类型相同 , 且信息内容不同的用户级第二聚合传输信息； 或
在载波聚合小区对应用户级第二聚合传输信息中， 有与用户终端所在主 服务小区对应的用户级第二聚合传输信息的信息类型相同， 且信息内容不同 的用户级第二聚合传输信息时， 将第四指示信息作为用户级第二聚合传输信 息向用户终端发送， 所述第四指示信息用于指示用户终端将最近一次确定的 栽波聚合小区的用户级第二聚合传输信息作为当前的用户级第二聚合传输信 息。
16、 一种用户终端， 其特征在于， 该用户终端包括：
接收模块， 用于接收来自网络侧的聚合传输信息；
传输模块， 用于根据所述聚合传输信息进行载波聚合传输。
17、 如权利要求 16所述的用户终端， 其特征在于， 所述聚合传输信息集 合包括第一聚合传输信息和第二聚合传输信息， 所述第一聚合传输信息是任 意两个小区对应的聚合传输信息的信息内容在发生变化时， 变化前后的信息 内容都相同的聚合传输信息， 以及都不相同的聚合传输信息； 所述第二聚合 传输信息是聚合传输信息集合中除第一聚合传输信息之外的聚合传输信息； 所述第二聚合传输信息包括小区级第二聚合传输信息和用户级第二聚合传输 信息；
所述接收模块用于：
根据收到的至少一个栽波聚合小区的用户级第二聚合传输信息， 确定进 行载波聚合传输的所有载波聚合小区对应的用户级第二聚合传输信息。
18、 如权利要求 17所述的用户终端， 其特征在于， 所述用户级第二聚合 传输信息包括公共配置的用户级第二聚合传输信息和 /或专用配置的用户级 第二聚合传输信息；
所述接收模块还用于
将收到的专用配置的用户级第二聚合传输信息替换已收到的类型相同的 公共配置的用户级第二聚合传输信息。
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