WO2018053965A1 - 一种广播系统信息的方法、装置及系统 - Google Patents

一种广播系统信息的方法、装置及系统 Download PDF

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Publication number
WO2018053965A1
WO2018053965A1 PCT/CN2016/112729 CN2016112729W WO2018053965A1 WO 2018053965 A1 WO2018053965 A1 WO 2018053965A1 CN 2016112729 W CN2016112729 W CN 2016112729W WO 2018053965 A1 WO2018053965 A1 WO 2018053965A1
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Prior art keywords
system information
cell
user terminal
information
broadcast
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PCT/CN2016/112729
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English (en)
French (fr)
Inventor
雷艺学
张云飞
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Priority to US16/335,803 priority Critical patent/US20200029180A1/en
Publication of WO2018053965A1 publication Critical patent/WO2018053965A1/zh
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/30—Resource management for broadcast services
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/20—Manipulation of established connections
    • H04W76/27—Transitions between radio resource control [RRC] states
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/22—Processing or transfer of terminal data, e.g. status or physical capabilities
    • H04W8/24—Transfer of terminal data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • the present invention relates to the field of computer technologies, and in particular, to a method, device, and system for broadcasting system information.
  • SIB System Information Blocks
  • SIBs which define system information such as downlink system bandwidth, PHICH resource indication, system frame number (SFN), cyclic redundancy check CRC mask, and number of antennas.
  • SIB has defined more than 20.
  • the broadcast of the system information needs to occupy the broadcast channel and the modulation and demodulation level used needs to satisfy the terminal covering the center and the edge, so the capacity resource of the base station broadcast channel is greatly occupied, and the resource utilization rate of the broadcast channel is low. .
  • a method of broadcasting system information including:
  • the global system information includes pre-divided basic system information and terminal related system information
  • the receiving the message uploaded by the user terminal through the uplink channel is:
  • Sending the target system information to the user terminal is:
  • the target system information is added to the broadcast channel.
  • the receiving the message uploaded by the user terminal through the uplink channel is:
  • Sending the target system information to the user terminal is:
  • the system information requirement message is terminal capability information or service requirement information.
  • the extracting the system information requirement message included in the message includes:
  • the system information requirement message included in the message is extracted in an explicit or implicit manner.
  • An apparatus for broadcasting system information comprising:
  • the global system information obtaining module is configured to obtain preset global system information, where the global system information includes pre-divided basic system information and terminal related system information;
  • a basic system information broadcast module configured to broadcast the basic system information on a broadcast channel
  • the uploading message receiving module is configured to receive a message uploaded by the user terminal by using an uplink channel, and extract a system information requirement message included in the message;
  • the target system information determining module is configured to determine target system information in the system information related to the terminal according to the indication of the system information requirement message;
  • the target system information sending module is configured to send the target system information to the user terminal.
  • the uploading message receiving module is further configured to receive a message uploaded by the user terminal by using an uplink channel of uplink physical layer signaling, RACH or MAC signaling;
  • the target system information sending module is further configured to add the target system information on the broadcast channel.
  • the uploading message receiving module is further configured to receive a message uploaded by the user terminal by using an uplink channel of the uplink RRC signaling;
  • the target system information sending module is further configured to send the target system information to the user terminal by using a dedicated channel corresponding to the uplink RRC signaling.
  • the system information requirement message is terminal capability information or service requirement information.
  • the upload message receiving module is further configured to extract the system information requirement message included in the message by an explicit or implicit manner.
  • a method of receiving system information including:
  • each set of system information corresponding to a corresponding cell
  • the two or more sets of system information are spliced and integrated into system information of the cell active broadcast, and the communication service is performed according to the system information actively broadcast by the cell.
  • the two or more cells are divided into a primary cell and a secondary cell
  • the receiving, by the broadcast channel, two or more sets of system information is:
  • the cell-specific system information is received by the broadcast channel of the primary cell in the two or more cells, and the system information shared by the cell is received by the broadcast channel of the secondary cell in the two or more cells.
  • the method further includes:
  • the communication service is performed according to the system information in which the system information actively broadcast by the cell and the supplementary system information are integrated.
  • the primary cell is a small cell
  • the secondary cell is a macro cell
  • An apparatus for receiving system information comprising:
  • a cell detection module configured to detect a broadcast channel of two or more cells
  • the system information receiving module is configured to receive two or more sets of system information through the broadcast channel, and each set of system information corresponds to a corresponding cell;
  • the system information integration module is configured to splicing and integrating the two or more sets of system information into system information actively broadcast by the cell, and performing communication services according to the system information actively broadcast by the cell.
  • the two or more cells are divided into a primary cell and a secondary cell
  • the system information receiving module is further configured to receive cell-specific system information by using a broadcast channel of a primary cell of the two or more cells, by using a secondary cell of the two or more cells.
  • the broadcast channel receives system information shared by the cell.
  • the apparatus further includes a supplementary information requesting module, configured to determine whether the system information actively broadcast by the cell meets the terminal capability information or the service requirement information, and if not, to the two through the uplink channel. Or the primary cell in the two or more cells reporting the terminal capability information or the service requirement information; receiving the supplementary system information that is sent by the primary cell according to the terminal capability information or the service requirement information; and actively broadcasting the cell according to the The system information and the system information integrated by the supplemental system information are used for communication services.
  • a supplementary information requesting module configured to determine whether the system information actively broadcast by the cell meets the terminal capability information or the service requirement information, and if not, to the two through the uplink channel. Or the primary cell in the two or more cells reporting the terminal capability information or the service requirement information; receiving the supplementary system information that is sent by the primary cell according to the terminal capability information or the service requirement information; and actively broadcasting the cell according to the The system information and the system information integrated by the supplemental system information are used for communication services.
  • the primary cell is a small cell
  • the secondary cell is a macro cell
  • a method of broadcasting system information based on two or more cells including:
  • the two or more cells determine respective corresponding system information
  • the two or more cells send the corresponding system information to the user terminal through the respective broadcast channels, so that the user terminal receives two or more sets of system information, and each set of system information corresponds to Corresponding cells, and the user terminal splicing and integrating the two or more sets of system information into system information actively broadcast by the cell, and performing communication services according to system information actively broadcast by the cell.
  • the two or more cells are divided into a primary cell of the user terminal and a secondary cell of the user terminal;
  • the two or more cells send the corresponding system information to the user terminal through the respective broadcast channels:
  • the primary cell of the user terminal sends the cell-specific system information to the user terminal by using a broadcast channel
  • the secondary cell of the user terminal sends the system information shared by the cell to the user terminal by using a broadcast channel.
  • the method further includes:
  • the primary cell of the user terminal receives the message uploaded by the user terminal through the uplink channel, and extracts terminal capability information or service requirement information included in the message;
  • a system for broadcasting system information comprising two or more cells, wherein the two or more cells are used to determine respective corresponding system information;
  • the two or more cells are used to send the corresponding system information to the user terminal through the respective broadcast channels, so that the user terminal receives two or more sets of system information, and each system The information corresponds to the corresponding cell, and the user terminal splicing and integrating the two or more sets of system information into system information actively broadcast by the cell, and performing communication service according to the system information actively broadcast by the cell.
  • the two or more cells are divided into a primary cell of the user terminal and a secondary cell of the user terminal;
  • the primary cell of the user terminal is configured to send the cell-specific system information to the user terminal by using a broadcast channel;
  • the secondary cell of the user terminal is configured to send the system information shared by the cell to the user terminal by using a broadcast channel.
  • the primary cell of the user terminal is configured to receive, by using an uplink channel, a message uploaded by the user terminal, and extract terminal capability information or service requirement information included in the message; according to the terminal capability information or service requirement.
  • the indication of the information determines the supplementary system information; the supplemental system information is sent to the user terminal, so that the user terminal communicates according to the system information actively broadcasted by the cell and the system information after the supplemental system information is integrated.
  • the base station After the method, device and system for using the above broadcast system information, the base station only needs to use less broadcast resources to broadcast the preset basic system information, and after the user terminal UE receives the basic system information through the broadcast channel, if the base station If the system information adapts the capability of the UE or meets the service requirement of the UE, the corresponding communication service may be performed, and only when the basic system information does not adapt to the capability of the UE or does not satisfy the service requirement of the UE.
  • the base station sends the system information required by the UE to the UE, which makes the number of SIBs defined by the timely communication protocol more, and can also consume less resources of the broadcast channel to the base station to send system information, thereby improving the broadcast channel. Resource utilization.
  • FIG. 1 is a schematic flow chart of a method for broadcasting system information in an embodiment
  • FIG. 2 is a sequence diagram of system information delivered by a base station in a 5G NR scenario in an embodiment
  • FIG. 3 is a flow chart of a method for broadcasting system information in an embodiment
  • FIG. 4 is a topological diagram of a plurality of cell coverage scenarios in an embodiment
  • FIG. 5 is a topological diagram of another multiple cell coverage scenario in an embodiment
  • FIG. 6 is a topological diagram of another multiple cell coverage scenario in an embodiment
  • FIG. 7 is a schematic flow chart of a method for receiving system information in an embodiment
  • FIG. 8 is a schematic diagram of an apparatus for broadcasting system information in an embodiment
  • FIG. 9 is a schematic diagram of an apparatus for receiving system information in an embodiment
  • Figure 10 is a schematic diagram of a base station in an embodiment
  • Figure 11 is a schematic illustration of a terminal in one embodiment.
  • a method of broadcasting system information is proposed, the implementation of which is based on a base station subsystem.
  • the concept of a base station is an evolved base station eNB.
  • the foregoing method for broadcasting system information includes the following steps S102-S108:
  • Step S102 Acquire preset global system information, where the global system information includes pre-divided basic system information and terminal related system information.
  • the system information contains a large number of parameters, including network attribute information, timers required by the UE, common channel information, cell selection and reselection, and measurement information. These parameters determine the UE's presence, reselection, and call in the cell. The UE can camp in this cell only if the UE receives all necessary system messages.
  • the system information may include a Master Information Block (MIB) and a plurality of System Information Blocks (SIBs), and scheduling information of the SIB.
  • MIB Master Information Block
  • SIBs System Information Blocks
  • Table 1 Table 1:
  • Channel_Type Indicates that the signaling occupies the channel type
  • Direction Indicate signaling direction, lower behavior 0, upper behavior 1
  • Mib-Value Tag The mib value tag is an integer between 1 and 8. When modified, the value will change.
  • SIBs There are many types of SIBs depending on the communication protocol. In the LTE system, the number of SIBs is defined by more than 20.
  • SIB1 mainly includes NAS information and related parameters of the UE in idle and connected mode timers
  • SIB3 and SIB4 mainly include parameters of cell selection and reselection.
  • the SIB5 mainly includes related parameters of a common physical channel in the cell
  • the SIB6 mainly includes a common physical channel in the cell and related parameters of the shared physical channel.
  • the SIB scheduling information describes where the SIB appears, and what kind of cycle occurs. Since the SIB may be segmented, the SIB scheduling information also includes segmentation scheduling information.
  • the global system information is all the system information supported by the communication protocol, for example, in the LTE system, that is, all defined MIBs and SIBs of the LTE system, and the pre-divided basic system information is predefined in the global system information.
  • a subset of the information may include, for example, an MIB and a partial SIB, and the MIB or SIB included in the subset is necessary system information that is predefined to be broadcast to the terminal through a broadcast channel, and the system information related to the terminal is a predefined
  • the selected system information does not need to be broadcast to the terminal all at once, but can be additionally sent to the terminal in the subsequent connection according to the terminal requirements.
  • the MIB and SIB1 to SIB9 may be pre-defined as the basic system information, and the remaining SIB10 to SIB20 are terminal-related system information.
  • Step S104 Broadcast the basic system information on a broadcast channel.
  • base system information can be broadcast on a broadcast channel by an evolved base station eNB.
  • Step S106 Receive a message uploaded by the user terminal through the uplink channel, and extract a system information requirement message included in the message.
  • the system information requirement message may be terminal capability information or service requirement information.
  • the UE Capability information can be classified into a radio access related capability and a core network related capability.
  • the network side makes various event decisions or executes various algorithms, it needs to know the capabilities of the UE to make the most appropriate judgment. For example, if the UE supports CSFB to initiate joint attach, then the process of executing and processing by the network side will be different; if the UE does not support the mobility of the PS HO inter-RAT, then the network can only adopt NACC/CCO or Redirct to achieve inter-system interoperability.
  • the user terminal UE may send the terminal capability information to the base station through UE Capability information signaling.
  • the service requirement information is what services the user terminal UE needs to carry out when performing communication services.
  • the base station may extract the system information requirement message included in the message in an explicit or implicit manner, that is, the user terminal UE may send the terminal capability information or the service requirement information by using specific signaling.
  • the base station can obtain the terminal capability information or the service requirement information by parsing the signaling; the user terminal UE can also transmit the terminal capability information or the service requirement information to the base station in other messages in an implicit manner, and the base station analyzes the other
  • the corresponding terminal capability information or service demand information may be determined by a specific rule in other messages (for example, whether a related information exists).
  • the base station may use the uplink physical layer signaling, the random access channel RACH (English: Random Access Channel) or the multiple access channel MAC (the English (multiple access channel) signaling uplink channel, or the MAC and the RACH after completion of the MAC and
  • RRC Radio Resource Control
  • the terminal may first receive the system information broadcast to detect whether the broadcast (that is, the basic system information delivered by the base station) can adapt its capability. If not, the indication is sent over the upstream channel. The UE capability information is carried in the indication, and the base station receives the system information requirement message.
  • the broadcast that is, the basic system information delivered by the base station
  • the terminal After the terminal enters the cell, it can receive the system information broadcast to detect whether the broadcast (that is, the basic system information delivered by the base station) can meet the service requirements of the terminal. If not, the service demand is indicated in the uplink channel, and the base station receives the system information demand message.
  • the broadcast that is, the basic system information delivered by the base station
  • Step S108 Determine target system information in the system information related to the terminal according to the indication of the system information requirement message.
  • the SIB5 mainly includes related parameters of a common physical channel in the cell; the SIB6 mainly includes a common physical channel in the cell and related parameters of the shared physical channel. Then, if the service requirement of the user terminal UE needs to use the shared physical channel, and the pre-defined basic system information includes only the SIB5, and the SIB6 is divided into the system information related to the terminal, the user terminal UE passes the cell after entering the cell.
  • the base station After the system information request message is received, the user equipment UE needs to use the SIB6 according to the service requirement of the shared physical channel, and the setting of the SIB6 is sent to the user terminal UE as the target system information, so that the UE A service that uses a shared physical channel can be carried out.
  • Step S110 The target system information is sent to the mobile terminal.
  • the base station can send the target system information to the mobile terminal in two ways, and the target system information can be sent to the mobile terminal by adding the target system information on the broadcast channel, or the target system information can be sent to the mobile terminal through other downlink channels. .
  • the base station may add the target system information through the broadcast channel. Sending the target system information to the mobile terminal, if the mobile terminal receives the system information request message uploaded by the mobile terminal by using the uplink channel of the uplink RRC signaling after the completion of the RACH, the base station uses the dedicated channel corresponding to the uplink RRC signaling to perform the The target system information is sent to the mobile terminal.
  • FIG. 2 shows a timing sequence of a 5G NR base station transmitting system information to a 5G NR user terminal UE in a 5G NR (New Radio) application scenario, and a 5G NR base station broadcasts basic system information.
  • the UE may upload the system information requirement information according to the requirement, and the 5G NR determines the target system information according to the system information requirement information, and then sends the information to the UE, and the UE can perform the corresponding communication service.
  • a method for broadcasting system information and a corresponding method for receiving system information are also proposed.
  • the method for broadcasting the system information is implemented based on a base station subsystem, and the method for receiving system information is based on a user terminal UE.
  • the method for broadcasting system information includes:
  • Step S202 Two or more cells determine respective corresponding system information.
  • Step S204 The two or more cells send respective corresponding system information to the user terminal through respective broadcast channels, so that the user terminal receives two or more sets of system information, and each set The system information corresponds to the corresponding cell, and the user terminal splicing and integrating the two or more sets of system information into the system information actively broadcast by the cell, and performing communication service according to the system information actively broadcast by the cell.
  • the UE is simultaneously covered by two cells, and the broadcast channels of the two cells can be simultaneously received.
  • the coverage of the cell B is The range is a subset of the coverage of the cell A, and the user terminal is in the coverage of the cell B.
  • the coverage of the cell B and the cell A overlaps, and the user terminal is in the coverage of the intersection.
  • the respective base stations of the two cells may, after negotiation, divide the system information that is actively broadcast by the cell that needs to be sent to the user terminal into two parts, one part is sent to the user terminal through the broadcast channel of the cell A, and the other part is passed through the cell B.
  • the broadcast channel is sent to the user terminal.
  • the user terminal After receiving a part of the system information sent by the base station of the cell A and another part of the system information sent by the base station of the cell B, the user terminal can integrate or splicing the two to obtain a complete cell. Actively broadcast system information, and then carry out communication services according to system information actively broadcast by the cell.
  • the base station of the cell A broadcasts the system information of the part of the MIB and the SIB1 to the SIB3, and the system of the part of the cell B broadcasts the part of the SIB4 to the SIB9.
  • the user terminal can receive the MIB and the SIB1 to SIB3 part through the broadcast channel of the base station of the cell A, receive the SIB4 to SIB9 part through the broadcast channel of the base station B, and integrate the two to obtain the complete MIB.
  • two or more N cells may be negotiated, and the system information that the cell actively broadcasts is divided into N parts and broadcasted separately, and the base station receives the broadcast through each of the N cells. After the system information of the N parts is integrated, the system information of the complete cell active broadcast can be obtained.
  • two or more cells are divided into a primary cell and a secondary cell.
  • the cell B may be the primary cell of the user terminal UE1
  • the cell A may be the secondary cell of the UE1
  • the cell C may be the coverage area thereof.
  • the secondary cell of the user terminal UE1 can send the system information shared by the cell (that is, the system information of the cell common) through the broadcast channel.
  • the secondary cell of the user terminal UE2 can transmit the system information shared by the cell (ie, the system information of the cell common) to the user terminal UE2 through the broadcast channel;
  • the primary cell of the user terminal UE2, that is, the cell C in FIG. 4 can transmit the cell-specific system information (ie, the cell-specific system information) to the user terminal U2 through the broadcast channel.
  • the system information shared by the cell is the system information used by the multiple cells. For example, if the cell A and the cell B negotiate, the system information that the set cell actively delivers is MIB+SIB1 to SIB6; the cell A and the cell C. After the negotiation, the system information that the set cell actively delivers is MIB+SIB4 to SIB9, and the system information of the cell common cell common can be determined in advance by the MIB+SIB5, and then the system information of the MIB+SIB1 to SIB4 is broadcast by the cell A.
  • both the UE1 and the UE2 can receive the system information of the cell common of the MIB+SIB5.
  • the cell-specific system information after the negotiation is the system information of the SIB1 to the SIB4+SIB6, and the system information of the SIB1 to the SIB4+SIB6 can be broadcasted by the base station corresponding to the cell B, and the UE1 is covered by the cell B.
  • the cell-specific system information of SIB1 to SIB4+SIB6 can be received.
  • UE1 can be completely obtained.
  • the cell-specific system information negotiated with the cell A is the system information of the SIB6 to the SIB9+SIB4, and the base station corresponding to the cell C can broadcast the cell specific system information of the SIB6 to the SIB9+SIB4.
  • UE2 can receive the cell specific system information of SIB6 to SIB9+SIB4 within the coverage of the cell C, and integrate the system information of the cell common of MIB+SIB5 and the system information of the cell specific of SIB6 to SIB9+SIB4.
  • UE1 can get the complete system information of MIB+SIB4 to SIB9.
  • the primary cell may be a small cell, and the secondary cell is a macro cell.
  • the macro cell is the most commonly used cell design form.
  • the traditional cellular network is composed of macro cells, and the coverage radius of each cell is mostly 1km to 25km. Due to the large coverage radius, the base station has a strong transmit power, generally above 10W.
  • the small cell is a microcell, which is a technology developed on the basis of the macro cell. Its coverage radius is about 30m ⁇ 300m; the transmission power is small, generally below 1W; the base station antenna is placed in a relatively low place, such as below the roof, 5m ⁇ 10m above the ground, the propagation is mainly along the line of sight of the street, the signal The leak at the top of the building is small. Therefore, microcells were originally used to increase radio coverage and eliminate "blind spots" in macrocells. At the same time, since the micro-cell base station with low transmission power allows a small frequency multiplexing distance, and the number of channels per unit area is large, the service density is greatly increased, and the RF interference is low, and it is placed in the macro cell. On the "hot spot", it can meet the requirements of both the quality and capacity of the micro area.
  • the two or more cells send the corresponding system information to the user terminal through the respective broadcast channels
  • the system information that the UE actively delivers through the integrated cell does not fully satisfy its terminal capability or The service requirement can also upload terminal capability information or service requirement information through the uplink channel of the primary cell.
  • the manner in which the two or more cells send the corresponding system information to the user terminal UE is not limited to being delivered through the broadcast channel, and may also be delivered through dedicated signaling described in other standards. Give the user terminal.
  • the primary cell may receive the message uploaded by the user terminal through the uplink channel, extract terminal capability information or service requirement information included in the message, and determine supplemental system information according to the indication of the terminal capability information or the service requirement information; The information is sent to the user terminal, so that the user terminal performs communication according to the system information actively broadcast by the cell and the system information after the supplemental system information is integrated.
  • the system information received by the UE1 is the system information of the cell common of the MIB+SIB5 and the system information of the cell specific of the SIB1 to the SIB4+SIB6, the system information that the received cell actively delivers is: MIB+SIB1 To the SIB6, and the UE1 needs to discover the system information of the SIB12 according to the terminal capability or the service requirement, the UE may send the terminal capability information or the service requirement information (which may be explicitly included or implicitly included) to the cell B through the uplink channel of the cell B.
  • the system information request message after receiving the system information requirement message, the base station of the cell B can determine the system information of the SIB12 as supplementary system information, and then transmit the SIB12 to the UE1 through the broadcast or other downlink channel, and the UE1 can perform corresponding Communication business.
  • Step S302 Detect a broadcast channel of two or more cells.
  • Step S304 Receive two or more sets of system information through the broadcast channel, and each set of system information corresponds to a corresponding cell.
  • Step S306 The two or more sets of system information are spliced and integrated into the system information of the active broadcast of the cell, and the communication service is performed according to the system information actively broadcast by the cell.
  • the user terminal UE may receive cell-specific system information through a broadcast channel of a primary cell in the two or more cells, and use a broadcast channel of a secondary cell in the two or more cells. Receive system information shared by the cell.
  • the user terminal After the user terminal splicing and integrating the two or more sets of system information into the system information actively broadcast by the cell, it can also determine whether the system information actively broadcast by the cell meets the terminal capability information or the service requirement information, and if not, And reporting the terminal capability information or the service requirement information to the primary cell of the two or more cells by using the uplink channel, and receiving the supplementary system information that is sent by the primary cell according to the terminal capability information or the service requirement information. And performing communication service according to system information obtained by integrating system information actively broadcast by the cell and the supplementary system information.
  • an apparatus for broadcasting system information including a global system information acquisition module 102, a basic system information broadcast module 104, an upload message receiving module 106, a target system information determining module 108, and target system information.
  • Sending module 110 including a global system information acquisition module 102, a basic system information broadcast module 104, an upload message receiving module 106, a target system information determining module 108, and target system information.
  • Sending module 110 wherein:
  • the global system information obtaining module 102 is configured to acquire preset global system information, where the global system information includes pre-divided basic system information and terminal related system information.
  • the base system information broadcast module 104 is configured to broadcast the base system information on a broadcast channel.
  • the upload message receiving module 106 is configured to receive the message uploaded by the user terminal through the uplink channel, and extract the system information requirement message included in the message.
  • the target system information determining module 108 is configured to determine target system information in the system information related to the terminal according to the indication of the system information requirement message.
  • the target system information sending module 110 is configured to send the target system information to the user terminal.
  • the upload message receiving module 106 is further configured to receive a message uploaded by the user terminal through an uplink channel of uplink physical layer signaling, RACH or MAC signaling.
  • the target system information sending module 110 is further configured to add the target system information on the broadcast channel.
  • the upload message receiving module 106 is further configured to receive the message uploaded by the user terminal through the uplink channel of the uplink RRC signaling.
  • the target system information sending module 110 is further configured to send the target system information to the user terminal by using a dedicated channel corresponding to the uplink RRC signaling.
  • the system information requirement message is terminal capability information or service requirement information.
  • the upload message receiving module 106 is further configured to extract the system information demand message contained in the message by an explicit or implicit manner.
  • an apparatus for receiving system information including a cell detection module 302, a system information receiving module 304, and a system information integration module 306, wherein:
  • the cell detection module 302 is configured to detect a broadcast channel of two or more cells.
  • the system information receiving module 304 is configured to receive two or more sets of system information through the broadcast channel, and each set of system information corresponds to a corresponding cell.
  • the system information integration module 306 is configured to splicing and integrating the two or more sets of system information into system information actively broadcast by the cell, and performing communication services according to the system information actively broadcast by the cell.
  • two or more cells are divided into a primary cell and a secondary cell.
  • the system information receiving module 306 is further configured to receive cell-specific system information through a broadcast channel of a primary cell of the two or more cells, and broadcast by a secondary cell in the two or more cells.
  • the channel receives system information shared by the cell.
  • the apparatus further includes a supplementary information requesting module 308, configured to determine whether the system information actively broadcast by the cell meets the terminal capability information or the service requirement information, and if not, passes the uplink channel. And reporting the terminal capability information or the service requirement information to the primary cell in the two or more cells; and receiving the supplementary system information that is sent by the primary cell according to the terminal capability information or the service requirement information;
  • the system information actively broadcasted by the cell and the system information integrated by the supplementary system information are used for communication services.
  • an embodiment of the present invention further provides a base station, where the base station 400 includes a processor 401, a memory 402, and a transceiver 403.
  • the transceiver 403 is configured to send and receive data with an external device.
  • the number of processors 401 in the base station 400 may be one or more.
  • the processor 401, the memory 402, and the transceiver 403 may be connected by a bus system or other means.
  • the base station 400 can be used to perform the methods shown in FIGS. 1 and 3.
  • the program code is stored in the memory 402, and the processor 401 can call the program code stored in the memory 402 to perform related functions through a bus system.
  • the respective modules described in FIG. 8 (for example, the global system information acquisition module 102, the basic system information broadcast module 104, the upload message receiving module 106, the target system information determining module 108, the The target system information issuance module 110, etc.) is a program code stored in the memory 402 and executed by the processor 401 to implement the functions of the respective modules to implement a method of broadcasting system information.
  • the processor 401 acquiring preset global system information, where the global system information includes pre-divided basic system information and system information related to the terminal; broadcasting the basic system information on a broadcast channel; Receiving, by the channel, a message uploaded by the user terminal, extracting a system information requirement message included in the message; determining target system information in the system information related to the terminal according to the indication of the system information requirement message; and using the target system information Send to the user terminal.
  • the global system information includes pre-divided basic system information and system information related to the terminal
  • broadcasting the basic system information on a broadcast channel Receiving, by the channel, a message uploaded by the user terminal, extracting a system information requirement message included in the message; determining target system information in the system information related to the terminal according to the indication of the system information requirement message; and using the target system information Send to the user terminal.
  • the processor 401 is further configured to: determine, by using two or more cells, respective system information, where the two or more cells send the corresponding system information to the respective broadcast channels. a user terminal, so that the user terminal receives two or more sets of system information, and each set of system information corresponds to a corresponding cell, and the user terminal splices and integrates the two or more sets of system information.
  • the system information actively broadcasted by the cell is used to perform communication services according to the system information actively broadcast by the cell.
  • an embodiment of the present invention further provides a terminal, where the terminal 500 includes a processor 501, a memory 502, and a transceiver 503.
  • the transceiver 503 is configured to send and receive data with and from an external device.
  • the number of processors 501 in the base station 500 may be one or more.
  • the processor 501, the memory 502, and the transceiver 503 may be connected by a bus system or other means.
  • the base station 500 can be used to perform the method illustrated in FIG.
  • the program code is stored in the memory 502, and the processor 501 can call the program code stored in the memory 502 to perform related functions through a bus system.
  • each module described in FIG. 9 eg, the cell detection module 302, the system information receiving module 304, the system information integration module 306, the supplementary information requesting module 308, etc.
  • the Program code in memory 502 is stored in the Program code in memory 502, and executed by said processor 501, to implement the functions of said various modules to implement a method of receiving system information.
  • the processor 401 detects a broadcast channel of two or more cells; receives two or more sets of system information through the broadcast channel, and each set of system information corresponds to a corresponding cell; The two or more sets of system information are spliced and integrated into the system information of the active broadcast of the cell, and the communication service is performed according to the system information actively broadcast by the cell.
  • the base station After the method, device and system for using the above broadcast system information, the base station only needs to use less broadcast resources to broadcast the preset basic system information, and after the user terminal UE receives the basic system information through the broadcast channel, if the base station If the system information adapts the capability of the UE or meets the service requirement of the UE, the corresponding communication service may be performed, and only when the basic system information does not adapt to the capability of the UE or does not satisfy the service requirement of the UE.
  • the base station sends the system information required by the UE to the UE, which makes the number of SIBs defined by the timely communication protocol more, and can also consume less resources of the broadcast channel to the base station to send system information, thereby improving the broadcast channel. Resource utilization.

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Abstract

本发明实施例公开了一种广播系统信息的方法，包括：获取预设的全局系统信息，所述全局系统信息包括预划分的基础系统信息和终端相关的系统信息；在广播信道上广播所述基础系统信息；通过上行信道接收用户终端上传的消息，提取所述消息中包含的系统信息需求消息；根据所述系统信息需求消息的指示在所述终端相关的系统信息中确定目标系统信息；将所述目标系统信息下发给所述用户终端。采用本发明，不需要将所有系统信息一次性全部主动发送给终端，从而占用了较少的基站广播信道的容量资源，提高了广播信道的资源利用率。

Description

一种广播系统信息的方法、装置及系统
本申请要求于2016年9月24日提交中国专利局，申请号为201610848940.5、发明名称为“一种广播系统信息的方法、装置及系统”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
本发明涉及计算机技术领域，尤其涉及一种广播系统信息的方法、装置及系统。
背景技术
随着通信技术的发展，通信协议也越来越负载，例如，在传统技术中的LTE系统中，基站需要广播给用户终端的系统信息十分庞杂，包括主信息块Master Information Block(MIB)和多个系统信息块System Information Blocks (SIBs)，光MIB中就定义了下行系统带宽、PHICH资源指示、系统帧号(SFN）、循环冗余校验CRC使用mask的方式以及天线数目的信息等系统信息，而除了MIB以外，SIB已经定义了20多个。传统技术中，系统信息的广播需要占用广播信道且所采用的调制解调等级需要满足覆盖中心和边缘的终端，因此会大大占用基站广播信道的容量资源，造成了广播信道的资源利用率较低。
发明内容
基于此，为解决传统技术中的系统信息的广播需要占用广播信道且所采用的调制解调等级需要满足覆盖中心和边缘的终端导致的广播信道的资源利用率不足的技术问题，特提出了一种广播系统信息的方法。
一种广播系统信息的方法，包括：
获取预设的全局系统信息，所述全局系统信息包括预划分的基础系统信息和终端相关的系统信息；
在广播信道上广播所述基础系统信息；
通过上行信道接收用户终端上传的消息，提取所述消息中包含的系统信息需求消息；
根据所述系统信息需求消息的指示在所述终端相关的系统信息中确定目标系统信息；
将所述目标系统信息下发给所述用户终端。
在其中一个实施例中，所述通过上行信道接收用户终端上传的消息为：
通过上行物理层信令、RACH或MAC信令的上行信道接收用户终端上传的消息；
所述将所述目标系统信息下发给所述用户终端为：
在所述广播信道上加入所述目标系统信息。
在其中一个实施例中，所述通过上行信道接收用户终端上传的消息为：
通过上行RRC信令的上行信道接收用户终端上传的消息；
所述将所述目标系统信息下发给所述用户终端为：
通过所述上行RRC信令对应的专用信道将所述目标系统信息下发给所述用户终端。
在其中一个实施例中，所述系统信息需求消息为终端能力信息或业务需求信息。
在其中一个实施例中，所述提取所述消息中包含的系统信息需求消息包括：
通过显式或隐式的方式提取所述消息中包含的系统信息需求消息。
此外，为解决传统技术中的系统信息的广播需要占用广播信道且所采用的调制解调等级需要满足覆盖中心和边缘的终端导致的广播信道的资源利用率不足的技术问题，特提出了一种广播系统信息的装置。
一种广播系统信息的装置，包括：
全局系统信息获取模块，设置为获取预设的全局系统信息，所述全局系统信息包括预划分的基础系统信息和终端相关的系统信息；
基础系统信息广播模块，设置为在广播信道上广播所述基础系统信息；
上传消息接收模块，设置为通过上行信道接收用户终端上传的消息，提取所述消息中包含的系统信息需求消息；
目标系统信息确定模块，设置为根据所述系统信息需求消息的指示在所述终端相关的系统信息中确定目标系统信息；
目标系统信息下发模块，设置为将所述目标系统信息下发给所述用户终端。
在其中一个实施例中，所述上传消息接收模块还设置为通过上行物理层信令、RACH或MAC信令的上行信道接收用户终端上传的消息；
所述目标系统信息下发模块还设置为在所述广播信道上加入所述目标系统信息。
在其中一个实施例中，所述上传消息接收模块还设置为通过上行RRC信令的上行信道接收用户终端上传的消息；
所述目标系统信息下发模块还设置为通过所述上行RRC信令对应的专用信道将所述目标系统信息下发给所述用户终端。
在其中一个实施例中，所述系统信息需求消息为终端能力信息或业务需求信息。
在其中一个实施例中，所述上传消息接收模块还设置为通过显式或隐式的方式提取所述消息中包含的系统信息需求消息。
此外，为解决传统技术中的系统信息的广播需要占用广播信道且所采用的调制解调等级需要满足覆盖中心和边缘的终端导致的广播信道的资源利用率不足的技术问题，特提出了一种接收系统信息的方法。
一种接收系统信息的方法，包括：
检测两个或两个以上的小区的广播信道；
通过所述广播信道接收两套或两套以上的系统信息，每套系统信息对应相应的小区；
将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
在其中一个实施例中，所述两个或两个以上的小区分为主小区和辅小区；
所述通过所述广播信道接收两套或两套以上的系统信息为：
通过所述两个或两个以上的小区中的主小区的广播信道接收小区特定的系统信息，通过所述两个或两个以上的小区中的辅小区的广播信道接收小区共用的系统信息。
在其中一个实施例中，所述将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息之后还包括：
判断所述小区主动广播的系统信息是否符合终端能力信息或业务需求信息，若否，则通过上行信道向所述两个或两个以上的小区中的主小区上报所述终端能力信息或业务需求信息；
接收所述主小区根据所述终端能力信息或业务需求信息下发的补充系统信息；
根据将所述小区主动广播的系统信息和所述补充系统信息整合后的系统信息进行通信业务。
在其中一个实施例中，所述主小区为小小区，所述辅小区为宏小区。
此外，为解决传统技术中的系统信息的广播需要占用广播信道且所采用的调制解调等级需要满足覆盖中心和边缘的终端导致的广播信道的资源利用率不足的技术问题，特提出了一种接收系统信息的装置。
一种接收系统信息的装置，包括：
小区检测模块，设置为检测两个或两个以上的小区的广播信道；
系统信息接收模块，设置为通过所述广播信道接收两套或两套以上的系统信息，每套系统信息对应相应的小区；
系统信息整合模块，设置为将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
在其中一个实施例中，所述两个或两个以上的小区分为主小区和辅小区；
所述系统信息接收模块还设置为通过所述两个或两个以上的小区中的主小区的广播信道接收小区特定的系统信息，通过所述两个或两个以上的小区中的辅小区的广播信道接收小区共用的系统信息。
在其中一个实施例中，所述装置还包括补充信息请求模块，设置为判断所述小区主动广播的系统信息是否符合终端能力信息或业务需求信息，若否，则通过上行信道向所述两个或两个以上的小区中的主小区上报所述终端能力信息或业务需求信息；接收所述主小区根据所述终端能力信息或业务需求信息下发的补充系统信息；根据将所述小区主动广播的系统信息和所述补充系统信息整合后的系统信息进行通信业务。
在其中一个实施例中，所述主小区为小小区，所述辅小区为宏小区。
此外，为解决传统技术中的系统信息的广播需要占用广播信道且所采用的调制解调等级需要满足覆盖中心和边缘的终端导致的广播信道的资源利用率不足的技术问题，特提出了一种广播系统信息的方法。
一种广播系统信息的方法，基于两个或两个以上的小区，包括：
所述两个或两个以上的小区确定各自对应的系统信息；
所述两个或两个以上的小区通过各自的广播信道将各自对应的系统信息下发给用户终端，以使所述用户终端接收两套或两套以上的系统信息，且每套系统信息对应相应的小区，并使所述用户终端将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
在其中一个实施例中，所述两个或两个以上的小区分为所述用户终端的主小区和所述用户终端的辅小区；
所述两个或两个以上的小区通过各自的广播信道将各自对应的系统信息下发给用户终端为：
所述用户终端的主小区通过广播信道将小区特定的系统信息下发给所述用户终端；
所述用户终端的辅小区通过广播信道将小区共用的系统信息下发给所述用户终端。
在其中一个实施例中，所述两个或两个以上的小区通过各自的广播信道将各自对应的系统信息下发给用户终端之后还包括：
所述用户终端的主小区通过上行信道接收用户终端上传的消息，提取所述消息中包含的终端能力信息或业务需求信息；
根据所述终端能力信息或业务需求信息的指示确定补充系统信息；
将所述补充系统信息下发给所述用户终端，以使所述用户终端根据所述小区主动广播的系统信息和所述补充系统信息整合后系统信息进行通信。
此外，为解决传统技术中的系统信息的广播需要占用广播信道且所采用的调制解调等级需要满足覆盖中心和边缘的终端导致的广播信道的资源利用率不足的技术问题，特提出了一种广播系统信息的系统。
一种广播系统信息的系统，包括两个或两个以上的小区，所述两个或两个以上的小区用于确定各自对应的系统信息；
所述两个或两个以上的小区用于通过各自的广播信道将各自对应的系统信息下发给用户终端，以使所述用户终端接收两套或两套以上的系统信息，且每套系统信息对应相应的小区，并使所述用户终端将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
在其中一个实施例中，所述两个或两个以上的小区分为所述用户终端的主小区和所述用户终端的辅小区；
所述用户终端的主小区用于通过广播信道将小区特定的系统信息下发给所述用户终端；
所述用户终端的辅小区用于通过广播信道将小区共用的系统信息下发给所述用户终端。
在其中一个实施例中，所述用户终端的主小区用于通过上行信道接收用户终端上传的消息，提取所述消息中包含的终端能力信息或业务需求信息；根据所述终端能力信息或业务需求信息的指示确定补充系统信息；将所述补充系统信息下发给所述用户终端，以使所述用户终端根据所述小区主动广播的系统信息和所述补充系统信息整合后系统信息进行通信。
实施本发明实施例，将具有如下有益效果：
采用了上述广播系统信息的方法、装置及系统之后，基站只需要耗费较少的广播资源广播预先设定的基础系统信息，用户终端UE在通过广播信道接收到该基础系统信息之后，若该基础系统信息适配该UE的能力或者满足该UE的业务需求，则可进行相应的通信业务，而只有在该基础系统信息不适配该UE的能力或者不满足该UE的业务需求时，才需要基站将UE需要的系统信息下发给UE，这就使得及时通信协议定义的SIB的数量较多，也可耗费较少的广播信道的资源来想基站下发系统信息，从而提高了广播信道的资源利用率。
 附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
其中：
图1为一个实施例中一种广播系统信息的方法的流程示意图；
图2为一个实施例中一种5G NR场景下基站下发系统信息的时序图；
图3为一个实施例中一种广播系统信息的方法的流程图；
图4为一个实施例中一种多个小区覆盖场景的拓扑图；
图5为一个实施例中另一种多个小区覆盖场景的拓扑图；
图6为一个实施例中另一种多个小区覆盖场景的拓扑图；
图7为一个实施例中一种接收系统信息的方法的流程示意图；
图8为一个实施例中一种广播系统信息的装置的示意图；
图9为一个实施例中一种接收系统信息的装置的示意图；
图10为一个实施例中一种基站的示意图；
图11为一个实施例中一种终端的示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
为解决传统技术中的系统信息的广播需要占用广播信道且所采用的调制解调等级需要满足覆盖中心和边缘的终端导致的广播信道的资源利用率不足的技术问题，在本实施例中，特提出了一种广播系统信息的方法，该方法的实现基于基站子系统。在LTE系统中，基站的概念则为演进型基站eNB。
具体的，如图1所示，上述广播系统信息的方法包括如下步骤S102-S108：
步骤S102：获取预设的全局系统信息，所述全局系统信息包括预划分的基础系统信息和终端相关的系统信息。
系统信息中包含着大量的参数，这些参数主要包括网络属性信息，UE所需的定时器、公共信道信息、小区选择与重选和测量信息。这些参数决定了UE在小区中的驻留，重选以及呼叫。只有UE接收全了必要的系统消息，UE才能在这个小区驻留。
系统信息可包括主信息块Master Information Block（MIB）和多个系统信息块System Information Blocks（SIBs），以及SIB的调度信息。其中MIB包括多个属性项，如表1所示：
表1
Channel_Type 指示该信令占用信道类型
Direction 指示信令方向，下行为0，上行为1
Mib-Value Tag mib值标签，为1~8之间的整数，修改时值会变
Support PLMN-Type 支持的PLMN类型，取值范围（GSM-MAP，ANSI-41）
PLMN identity 服务小区PLMN，含MCC和MNC两部分
SIB则根据通信协议有多种类型，在LTE系统中，SIB的数量定义了20多个。例如，SIB1主要包括NAS信息以及UE在空闲以及连模式定时器的相关参数，SIB3和SIB4主要包括小区选择和重选的参数。SIB5主要包含小区中公共物理信道的相关参数；SIB6主要包含小区中的公共物理信道和共享物理信道的相关参数等。
SIB调度信息则描述了SIB在什么位置出现，以及以怎样的周期出现等内容。由于SIB可能被分段，因此SIB调度信息里还包含了分段的调度信息。
在本实施例中，全局系统信息即为通信协议所支持的所有系统信息，例如在LTE系统中，即为LTE系统所有定义的MIB和SIBs，预划分的基础系统信息为全局系统信息中预先定义的一个子集，例如可包括MIB和部分SIB，且该子集中包含的MIB或SIB为预先定义地需要通过广播信道广播给终端的必要的系统信息，终端相关的系统信息即为预先定义的可选的系统信息，不需要一次性地全部广播给终端，而可在后续根据终端需求附加地下发给终端。
例如，若根据LTE通信协议，预先定义的全局系统信息包括MIB和20个SIB，可预先定义MIB和SIB1至SIB9为基础系统信息，剩余的SIB10至SIB20均为终端相关的系统信息。
步骤S104：在广播信道上广播所述基础系统信息。
例如在LTE系统中，可通过演进型基站eNB在广播信道上广播基础系统信息。
步骤S106：通过上行信道接收用户终端上传的消息，提取所述消息中包含的系统信息需求消息。
在本实施例中，在本实施例中，系统信息需求消息可以是终端能力信息或业务需求信息。
终端能力信息UE Capability information可分为无线接入相关能力及核心网相关能力。网络侧在做各种事件判决或执行各种算法时，均需知道UE的能力，才能做出最切合的判决。比如，UE如果支持CSFB发起联合附着，那么此时网络侧对其执行和处理的过程会不一样；如果UE不支持PS HO的inter-RAT的mobility时， 那么网络也只能采取NACC/CCO或者Redirct来实现系统间互操作。用户终端UE可通过UE Capability information信令将终端能力信息发送给基站。业务需求信息即为用户终端UE在进行通信业务时需要开展哪些业务。
在本实施例中，基站可通过显式或隐式的方式提取所述消息中包含的系统信息需求消息，也就是说，用户终端UE可通过特定的信令将终端能力信息或业务需求信息发送给基站，基站通过解析该信令即可得到终端能力信息或业务需求信息；用户终端UE也可将终端能力信息或业务需求信息通过隐式的方式在其他消息中传递给基站，基站在解析其他消息时，可通过其他消息中的特定规律（例如某个相关信息是否存在）确定相应的终端能力信息或业务需求信息。
基站可通过上行物理层信令，随机接入信道RACH（英文：Random Access Channel）或多址接入信道MAC（(英文：multiple access channel）信令的上行信道，或者是RACH完成之后的MAC和无线资源控制RRC（英文：Radio Resource Control）信令接收移动终端上传的系统信息需求消息。系统信息需求消息即为用户终端UE根据自身的需求上传的对缺少的系统信息进行要求的消息。用户终端UE自身的需求包括两方面：
终端在进入小区后可以先接收系统信息广播，检测该广播（即基站下发的基础系统信息）是否能够适配其能力。如果不能，则通过上行信道发送指示。在该指示中携带UE能力信息，基站接收该系统信息需求消息。
终端在进入小区后可以先接收系统信息广播，检测该广播（即基站下发的基础系统信息）是否能够满足终端的业务需求。如果不能，则在上行信道中指示业务需求，基站接收该系统信息需求消息。
步骤S108：根据所述系统信息需求消息的指示在所述终端相关的系统信息中确定目标系统信息。
如前例中，SIB5主要包含小区中公共物理信道的相关参数；SIB6主要包含小区中的公共物理信道和共享物理信道的相关参数等。则若用户终端UE的业务需求需要使用共享物理信道，而预先划定的基础系统信息中仅包含SIB5，而SIB6被划分为终端相关的系统信息，则该用户终端UE在进入小区后，先通过接收广播信道上广播的基础系统信息，得到SIB5，但由于共享物理信道的业务需求需要使用到SIB6，因此将共享物理信道的业务需求加入到系统信息需求消息，并通过上行信道发送给基站，基站接收到该系统信息需求消息之后，根据其中包含的共享物理信道的业务需求即可确定该用户终端UE需要用到SIB6，即可将SIB6的设置作为目标系统信息下发给用户终端UE，使得UE可开展使用共享物理信道的业务。
步骤S110：将所述目标系统信息下发给所述移动终端。
基站可通过两种方式将目标系统信息下发给移动终端，可通过在广播信道上添加目标系统信息将目标系统信息下发给移动终端，也可通过其他下行信道将目标系统信息发送给移动终端。
但需要说明的是，若移动终端通过上行物理层信令，随机接入信道RACH或多址接入信道MAC信令的上行信道上传系统信息需求消息，则基站可通过广播信道上添加目标系统信息将目标系统信息下发给移动终端，若移动终端通过RACH完成之后的上行RRC信令的上行信道接收移动终端上传的系统信息需求消息，则基站通过该上行RRC信令对应的专用信道将所述目标系统信息下发给所述移动终端。
参考图2所示，图2展示了一个5G NR（New Radio）的应用场景中，5G NR的基站向5G NR的用户终端UE下发系统信息的时序过程，5G NR的基站广播基础系统信息，UE接收到之后，根据需求，上传系统信息需求信息，5G NR根据该系统信息需求信息确定目标系统信息之后再下发给UE，UE即可进行相应的通信业务。
在另一个实施例中，为解决传统技术中的系统信息的广播需要占用广播信道且所采用的调制解调等级需要满足覆盖中心和边缘的终端导致的广播信道的资源利用率不足的技术问题，在本实施例中，还提出了一种广播系统信息的方法以及相应的接收系统信息的方法，上述广播系统信息的方法的实现基于基站子系统，上述接收系统信息的方法基于用户终端UE。
具体的，如图3所示，该广播系统信息的方法包括：
步骤S202：两个或两个以上的小区确定各自对应的系统信息。
步骤S204：所述两个或两个以上的小区通过各自的广播信道将各自对应的系统信息下发给用户终端，以使所述用户终端接收两套或两套以上的系统信息，且每套系统信息对应相应的小区，并使所述用户终端将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
也就是说，在一个应用场景中，如图4所示和图5所示，UE被两个小区同时覆盖，能够同时接收到该两个小区的广播信道，在图4中，小区B的覆盖范围为小区A覆盖范围的子集，用户终端处于小区B的覆盖范围中；在图5中，小区B和小区A的覆盖范围存在交集，用户终端处于该交集的覆盖范围中。该两个小区的各自的基站可经过协商后，将需要发送给用户终端的小区主动广播的系统信息划分为两个部分，一部分通过小区A的广播信道发送给用户终端，另一部分通过小区B的广播信道发送给该用户终端，用户终端在分别接收到小区A的基站发送的一部分系统信息和小区B的基站发送的另一部分系统信息之后，可将二者整合或拼接，即可得到完整的小区主动广播的系统信息，然后根据该小区主动广播的系统信息开展通信业务。
例如，若小区主动广播的系统信息为MIB和SIB1至SIB9，经过协商之后，由小区A的基站广播MIB和SIB1至SIB3的部分的系统信息，由小区B的基站广播SIB4至SIB9的部分的系统信息，用户终端可通过小区A的基站的广播信道接收到MIB和SIB1至SIB3的部分，通过小区B的基站的广播信道接收到SIB4至SIB9的部分，将二者整合，即得到了完整的MIB和SIB1至SIB9的小区主动广播的系统信息。
在其他实施例中，如图6所示，也可由两个以上的N个小区进行协商，将小区主动广播的系统信息划分为N部分，分别进行广播，基站通过N个小区各自的广播接收到该N个部分的系统信息之后，将其整合，即可得到完整的小区主动广播的系统信息。
进一步的，两个或两个以上的小区分为主小区和辅小区，如上例中，小区B可以是用户终端UE1的主小区，小区A可以是UE1的辅小区，小区C可以是其覆盖范围内的用户终端UE2的主小区。
请再次参考图4所示，对于用户终端U1而言，用户终端UE1的辅小区，即图4中的小区A，可通过广播信道将小区共用的系统信息（即cell common的系统信息）下发给用户终端UE1；用户终端UE1的主小区，即图4中的小区B，可通过广播信道将小区特定的系统信息（即cell specific的系统信息）下发给用户终端UE1。
同样的，对于用户终端UE2而言，用户终端UE2的辅小区，即图4中的小区A，可通过广播信道将小区共用的系统信息（即cell common的系统信息）下发给用户终端UE2；用户终端UE2的主小区，即图4中的小区C，可通过广播信道将小区特定的系统信息（即cell specific的系统信息）下发给用户终端U2。
小区共用的系统信息即为多个小区共同使用的系统信息，例如，若小区A和小区B进行协商后，设定的小区主动下发的系统信息为MIB+SIB1至SIB6；小区A和小区C进行协商后，设定的小区主动下发的系统信息为MIB+SIB4至SIB9，则可预先确定MIB+SIB5为小区共用cell common的系统信息，然后由小区A广播MIB+SIB1至SIB4的系统信息，由于UE1和UE2均处于小区A的覆盖范围内，且小区A均为UE1和UE2的辅小区，因此UE1和UE2均可以接收到MIB+SIB5的cell common的系统信息。
而对于小区B，其经协商后的小区特定的系统信息即为SIB1至SIB4+SIB6的系统信息，可通过小区B对应的基站广播SIB1至SIB4+SIB6的系统信息，UE1由于在小区B的覆盖范围内，即可接收到SIB1至SIB4+SIB6的小区特定的系统信息，通过将MIB+SIB5的cell common的系统信息和SIB1至SIB4+SIB6的cell specific的系统信息整合，UE1即可得到完整的MIB+SIB1至SIB6的系统信息。
同样，对于小区C，其与小区A经协商后的小区特定的系统信息即为SIB6至SIB9+SIB4的系统信息，可通过小区C对应的基站广播SIB6至SIB9+SIB4的cell specific的系统信息，UE2由于在小区C的覆盖范围内，即可接收到SIB6至SIB9+SIB4的cell specific的系统信息，通过将MIB+SIB5的cell common的系统信息和SIB6至SIB9+SIB4的cell specific的系统信息整合，UE1即可得到完整的MIB+SIB4至SIB9的系统信息。
优选的，如图4中，主小区可以是小小区，辅小区是宏小区。宏小区即为最常用的小区设计形式，传统的蜂窝式网络由宏蜂窝小区构成，每小区的覆盖半径大多为1km～25km。由于覆盖半径较大，所以基站的发射功率较强，一般在10W以上。
小小区即为microcell，为宏小区的基础上发展起来的一门技术。它的覆盖半径大约为30m～300m；发射功率较小，一般在1W以下；基站天线置于相对低的地方，如屋顶下方，高于地面5m～10m，传播主要沿着街道的视线进行，信号在楼顶的泄露小。因此，微蜂窝最初被用来加大无线电覆盖，消除宏蜂窝中的“盲点”。同时由于低发射功率的微蜂窝基站允许较小的频率复用距离，每个单元区域的信道数量较多，因此业务密度得到了巨大的增长，且RF干扰很低，将它安置在宏蜂窝的“热点”上，可满足该微小区域质量与容量两方面的要求。
另外，在两个或两个以上的小区通过各自的广播信道将各自对应的系统信息下发给用户终端之后，若UE经过整合得到的小区主动下发的系统信息并不能完全满足其终端能力或业务需求，还可通过主小区的上行信道上传终端能力信息或业务需求信息。需要说明的是，上述两个或两个以上的小区将各自对应的系统信息下发给用户终端UE的方式也不限于通过广播信道下发，也可通过其他标准中描述的专用信令下发给用户终端。
主小区可通过上行信道接收用户终端上传的消息，提取所述消息中包含的终端能力信息或业务需求信息；根据所述终端能力信息或业务需求信息的指示确定补充系统信息；将所述补充系统信息下发给所述用户终端，以使所述用户终端根据所述小区主动广播的系统信息和所述补充系统信息整合后系统信息进行通信。
如前例中，若UE1接收到的系统信息为MIB+SIB5的cell common的系统信息，以及SIB1至SIB4+SIB6的cell specific的系统信息，即接收到的小区主动下发的系统信息为：MIB+ SIB1至SIB6，而UE1根据终端能力或业务需求发现还需要SIB12的系统信息，则可通过小区B的上行信道向小区B发送包含了终端能力信息或业务需求信息（可显式包含或隐式包含）的系统信息需求消息，小区B的基站接收到该系统信息需求消息之后，即可确定SIB12的系统信息为补充系统信息，然后通过广播或其他下行信道将SIB12传输给UE1，UE1即可开展相应的通信业务。
在此过程中，相应的，用户终端UE也执行了与该广播系统信息的方法对应的接收系统信息的方法，如图7所示，具体包括：
步骤S302：检测两个或两个以上的小区的广播信道。
步骤S304：通过所述广播信道接收两套或两套以上的系统信息，每套系统信息对应相应的小区。
步骤S306：将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
相应的，用户终端UE可通过所述两个或两个以上的小区中的主小区的广播信道接收小区特定的系统信息，通过所述两个或两个以上的小区中的辅小区的广播信道接收小区共用的系统信息。
用户终端在将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息之后还可判断所述小区主动广播的系统信息是否符合终端能力信息或业务需求信息，若否，则通过上行信道向所述两个或两个以上的小区中的主小区上报所述终端能力信息或业务需求信息；接收所述主小区根据所述终端能力信息或业务需求信息下发的补充系统信息；根据将所述小区主动广播的系统信息和所述补充系统信息整合后的系统信息进行通信业务。
此外，为解决传统技术中的系统信息的广播需要占用广播信道且所采用的调制解调等级需要满足覆盖中心和边缘的终端导致的广播信道的资源利用率不足的技术问题，在一个实施例中，如图8所示，还提出了一种广播系统信息的装置，包括全局系统信息获取模块102、基础系统信息广播模块104、上传消息接收模块106、目标系统信息确定模块108以及目标系统信息下发模块110，其中：
全局系统信息获取模块102，设置为获取预设的全局系统信息，所述全局系统信息包括预划分的基础系统信息和终端相关的系统信息。
基础系统信息广播模块104，设置为在广播信道上广播所述基础系统信息。
上传消息接收模块106，设置为通过上行信道接收用户终端上传的消息，提取所述消息中包含的系统信息需求消息。
目标系统信息确定模块108，设置为根据所述系统信息需求消息的指示在所述终端相关的系统信息中确定目标系统信息。
目标系统信息下发模块110，设置为将所述目标系统信息下发给所述用户终端。
在其中一个实施例中，上传消息接收模块106还设置为通过上行物理层信令、RACH或MAC信令的上行信道接收用户终端上传的消息。目标系统信息下发模块110还用于在所述广播信道上加入所述目标系统信息。
在其中一个实施例中，上传消息接收模块106还设置为通过上行RRC信令的上行信道接收用户终端上传的消息。目标系统信息下发模块110还设置为通过所述上行RRC信令对应的专用信道将所述目标系统信息下发给所述用户终端。
在其中一个实施例中，所述系统信息需求消息为终端能力信息或业务需求信息。
在其中一个实施例中，上传消息接收模块106还设置为通过显式或隐式的方式提取所述消息中包含的系统信息需求消息。
此外，为解决传统技术中的系统信息的广播需要占用广播信道且所采用的调制解调等级需要满足覆盖中心和边缘的终端导致的广播信道的资源利用率不足的技术问题，在一个实施例中，如图9所示，还提出了一种接收系统信息的装置，包括小区检测模块302、系统信息接收模块304、以及系统信息整合模块306，其中：
小区检测模块302，设置为检测两个或两个以上的小区的广播信道。
系统信息接收模块304，设置为通过所述广播信道接收两套或两套以上的系统信息，每套系统信息对应相应的小区。
系统信息整合模块306，设置为将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
在其中一个实施例中，两个或两个以上的小区分为主小区和辅小区。
系统信息接收模块306还设置为通过所述两个或两个以上的小区中的主小区的广播信道接收小区特定的系统信息，通过所述两个或两个以上的小区中的辅小区的广播信道接收小区共用的系统信息。
其中一个实施例中，如图9所示，该装置还包括补充信息请求模块308，设置为判断所述小区主动广播的系统信息是否符合终端能力信息或业务需求信息，若否，则通过上行信道向所述两个或两个以上的小区中的主小区上报所述终端能力信息或业务需求信息；接收所述主小区根据所述终端能力信息或业务需求信息下发的补充系统信息；根据将所述小区主动广播的系统信息和所述补充系统信息整合后的系统信息进行通信业务。
如图10所示，本发明实施例还提出一种基站，所述基站400包括处理器401、存储器402和收发器403。所述收发器403用于与外部设备之间收发数据。所述基站400中的处理器401的数量可以是一个或多个。本发明的一些实施例中，所述处理器401、存储器402和收发器403可通过总线系统或其他方式连接。所述基站400可以用于执行图1、图3所示的方法。
其中，存储器402中存储程序代码，且所述处理器401可通过总线系统，调用所述存储器402中存储的程序代码以执行相关的功能。例如，图8中所述的各个模块（例如，所述全局系统信息获取模块102、所述基础系统信息广播模块104、所述上传消息接收模块106、所述目标系统信息确定模块108、所述目标系统信息下发模块110等）是存储在所述存储器402中的程序代码，并由所述处理器401所执行，从而实现所述各个模块的功能以实现广播系统信息的方法。
具体而言，所述处理器401：获取预设的全局系统信息，所述全局系统信息包括预划分的基础系统信息和终端相关的系统信息；在广播信道上广播所述基础系统信息；通过上行信道接收用户终端上传的消息，提取所述消息中包含的系统信息需求消息；根据所述系统信息需求消息的指示在所述终端相关的系统信息中确定目标系统信息；将所述目标系统信息下发给所述用户终端。
所述处理器401，还用于执行：两个或两个以上的小区确定各自对应的系统信息；所述两个或两个以上的小区通过各自的广播信道将各自对应的系统信息下发给用户终端，以使所述用户终端接收两套或两套以上的系统信息，且每套系统信息对应相应的小区，并使所述用户终端将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
如图11所示，本发明实施例还提出一种终端，所述终端500包括处理器501、存储器502和收发器503。所述收发器503用于与外部设备之间收发数据。所述基站500中的处理器501的数量可以是一个或多个。本发明的一些实施例中，所述处理器501、存储器502和收发器503可通过总线系统或其他方式连接。所述基站500可以用于执行图7所示的方法。
其中，存储器502中存储程序代码，且所述处理器501可通过总线系统，调用所述存储器502中存储的程序代码以执行相关的功能。例如，图9中所述的各个模块（例如，所述小区检测模块302、所述系统信息接收模块304、所述系统信息整合模块306、所述补充信息请求模块308等）是存储在所述存储器502中的程序代码，并由所述处理器501所执行，从而实现所述各个模块的功能以实现接收系统信息的方法。
具体而言，所述处理器401：检测两个或两个以上的小区的广播信道；通过所述广播信道接收两套或两套以上的系统信息，每套系统信息对应相应的小区；将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
实施本发明实施例，将具有如下有益效果：
采用了上述广播系统信息的方法、装置及系统之后，基站只需要耗费较少的广播资源广播预先设定的基础系统信息，用户终端UE在通过广播信道接收到该基础系统信息之后，若该基础系统信息适配该UE的能力或者满足该UE的业务需求，则可进行相应的通信业务，而只有在该基础系统信息不适配该UE的能力或者不满足该UE的业务需求时，才需要基站将UE需要的系统信息下发给UE，这就使得及时通信协议定义的SIB的数量较多，也可耗费较少的广播信道的资源来想基站下发系统信息，从而提高了广播信道的资源利用率。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的范围。

Claims (24)

  1. 一种广播系统信息的方法，其特征在于，包括：
    获取预设的全局系统信息，所述全局系统信息包括预划分的基础系统信息和终端相关的系统信息；
    在广播信道上广播所述基础系统信息；
    通过上行信道接收用户终端上传的消息，提取所述消息中包含的系统信息需求消息；
    根据所述系统信息需求消息的指示在所述终端相关的系统信息中确定目标系统信息；
    将所述目标系统信息下发给所述用户终端。
  2. 根据权利要求1所述的广播系统信息的方法，其特征在于，所述通过上行信道接收用户终端上传的消息为：
    通过上行物理层信令、RACH或MAC信令的上行信道接收用户终端上传的消息；
    所述将所述目标系统信息下发给所述用户终端为：
    在所述广播信道上加入所述目标系统信息。
  3. 根据权利要求1所述的广播系统信息的方法，其特征在于，所述通过上行信道接收用户终端上传的消息为：
    通过上行RRC信令的上行信道接收用户终端上传的消息；
    所述将所述目标系统信息下发给所述用户终端为：
    通过所述上行RRC信令对应的专用信道将所述目标系统信息下发给所述用户终端。
  4. 根据权利要求1所述的广播系统信息的方法，其特征在于，所述系统信息需求消息为终端能力信息或业务需求信息。
  5. 根据权利要求1所述的广播系统信息的方法，其特征在于，所述提取所述消息中包含的系统信息需求消息包括：
    通过显式或隐式的方式提取所述消息中包含的系统信息需求消息。
  6. 一种广播系统信息的装置，其特征在于，包括：
    全局系统信息获取模块，设置为获取预设的全局系统信息，所述全局系统信息包括预划分的基础系统信息和终端相关的系统信息；
    基础系统信息广播模块，设置为在广播信道上广播所述基础系统信息；
    上传消息接收模块，设置为通过上行信道接收用户终端上传的消息，提取所述消息中包含的系统信息需求消息；
    目标系统信息确定模块，设置为根据所述系统信息需求消息的指示在所述终端相关的系统信息中确定目标系统信息；
    目标系统信息下发模块，设置为将所述目标系统信息下发给所述用户终端。
  7. 根据权利要求6所述的广播系统信息的装置，其特征在于，所述上传消息接收模块还设置为通过上行物理层信令、RACH或MAC信令的上行信道接收用户终端上传的消息；
    所述目标系统信息下发模块还设置为在所述广播信道上加入所述目标系统信息。
  8. 根据权利要求6所述的广播系统信息的装置，其特征在于，所述上传消息接收模块还设置为通过上行RRC信令的上行信道接收用户终端上传的消息；
    所述目标系统信息下发模块还设置为通过所述上行RRC信令对应的专用信道将所述目标系统信息下发给所述用户终端。
  9. 根据权利要求6所述的广播系统信息的装置，其特征在于，所述系统信息需求消息为终端能力信息或业务需求信息。
  10. 根据权利要求6所述的广播系统信息的装置，其特征在于，所述上传消息接收模块还设置为通过显式或隐式的方式提取所述消息中包含的系统信息需求消息。
  11. 一种接收系统信息的方法，其特征在于，包括：
    检测两个或两个以上的小区的广播信道；
    通过所述广播信道接收两套或两套以上的系统信息，每套系统信息对应相应的小区；
    将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
  12. 根据权利要求11所述的接收系统信息的方法，其特征在于，所述两个或两个以上的小区分为主小区和辅小区；
    所述通过所述广播信道接收两套或两套以上的系统信息为：
    通过所述两个或两个以上的小区中的主小区的广播信道接收小区特定的系统信息，通过所述两个或两个以上的小区中的辅小区的广播信道接收小区共用的系统信息。
  13. 根据权利要求12所述的接收系统信息的方法，其特征在于，所述将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息之后还包括：
    判断所述小区主动广播的系统信息是否符合终端能力信息或业务需求信息，若否，则通过上行信道向所述两个或两个以上的小区中的主小区上报所述终端能力信息或业务需求信息；
    接收所述主小区根据所述终端能力信息或业务需求信息下发的补充系统信息；
    根据将所述小区主动广播的系统信息和所述补充系统信息整合后的系统信息进行通信业务。
  14. 根据权利要求12所述的接收系统信息的方法，其特征在于，所述主小区为小小区，所述辅小区为宏小区。
  15. 一种接收系统信息的装置，其特征在于，包括：
    小区检测模块，设置为检测两个或两个以上的小区的广播信道；
    系统信息接收模块，设置为通过所述广播信道接收两套或两套以上的系统信息，每套系统信息对应相应的小区；
    系统信息整合模块，设置为将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
  16. 根据权利要求15所述的接收系统信息的装置，其特征在于，所述两个或两个以上的小区分为主小区和辅小区；
    所述系统信息接收模块还设置为通过所述两个或两个以上的小区中的主小区的广播信道接收小区特定的系统信息，通过所述两个或两个以上的小区中的辅小区的广播信道接收小区共用的系统信息。
  17. 根据权利要求16所述的接收系统信息的装置，其特征在于，所述装置还包括补充信息请求模块，设置为判断所述小区主动广播的系统信息是否符合终端能力信息或业务需求信息，若否，则通过上行信道向所述两个或两个以上的小区中的主小区上报所述终端能力信息或业务需求信息；接收所述主小区根据所述终端能力信息或业务需求信息下发的补充系统信息；根据将所述小区主动广播的系统信息和所述补充系统信息整合后的系统信息进行通信业务。
  18. 根据权利要求16所述的接收系统信息的装置，其特征在于，所述主小区为小小区，所述辅小区为宏小区。
  19. 一种广播系统信息的方法，其特征在于，基于两个或两个以上的小区，包括：
    所述两个或两个以上的小区确定各自对应的系统信息；
    所述两个或两个以上的小区通过各自的广播信道将各自对应的系统信息下发给用户终端，以使所述用户终端接收两套或两套以上的系统信息，且每套系统信息对应相应的小区，并使所述用户终端将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
  20. 根据权利要求19所述的广播系统信息的方法，其特征在于，所述两个或两个以上的小区分为所述用户终端的主小区和所述用户终端的辅小区；
    所述两个或两个以上的小区通过各自的广播信道将各自对应的系统信息下发给用户终端为：
    所述用户终端的主小区通过广播信道将小区特定的系统信息下发给所述用户终端；
    所述用户终端的辅小区通过广播信道将小区共用的系统信息下发给所述用户终端。
  21. 根据权利要求20所述的广播系统信息的方法，其特征在于，所述两个或两个以上的小区通过各自的广播信道将各自对应的系统信息下发给用户终端之后还包括：
    所述用户终端的主小区通过上行信道接收用户终端上传的消息，提取所述消息中包含的终端能力信息或业务需求信息；
    根据所述终端能力信息或业务需求信息的指示确定补充系统信息；
    将所述补充系统信息下发给所述用户终端，以使所述用户终端根据所述小区主动广播的系统信息和所述补充系统信息整合后系统信息进行通信。
  22. 一种广播系统信息的系统，其特征在于，包括两个或两个以上的小区，所述两个或两个以上的小区用于确定各自对应的系统信息；
    所述两个或两个以上的小区用于通过各自的广播信道将各自对应的系统信息下发给用户终端，以使所述用户终端接收两套或两套以上的系统信息，且每套系统信息对应相应的小区，并使所述用户终端将所述两套或两套以上的系统信息拼接整合成小区主动广播的系统信息，根据所述小区主动广播的系统信息进行通信业务。
  23. 根据权利要求22所述的广播系统信息的系统，其特征在于，所述两个或两个以上的小区分为所述用户终端的主小区和所述用户终端的辅小区；
    所述用户终端的主小区用于通过广播信道将小区特定的系统信息下发给所述用户终端；
    所述用户终端的辅小区用于通过广播信道将小区共用的系统信息下发给所述用户终端。
  24. 根据权利要求23所述的广播系统信息的系统，其特征在于，所述用户终端的主小区用于通过上行信道接收用户终端上传的消息，提取所述消息中包含的终端能力信息或业务需求信息；根据所述终端能力信息或业务需求信息的指示确定补充系统信息；将所述补充系统信息下发给所述用户终端，以使所述用户终端根据所述小区主动广播的系统信息和所述补充系统信息整合后系统信息进行通信。
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