WO2018033099A1 - 一种系统信息广播、系统信息接收方法及装置 - Google Patents

一种系统信息广播、系统信息接收方法及装置 Download PDF

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Publication number
WO2018033099A1
WO2018033099A1 PCT/CN2017/097668 CN2017097668W WO2018033099A1 WO 2018033099 A1 WO2018033099 A1 WO 2018033099A1 CN 2017097668 W CN2017097668 W CN 2017097668W WO 2018033099 A1 WO2018033099 A1 WO 2018033099A1
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WO
WIPO (PCT)
Prior art keywords
system information
cell
network device
broadcast
terminal
Prior art date
Application number
PCT/CN2017/097668
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English (en)
French (fr)
Inventor
张宏平
戴明增
曾清海
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP17841071.8A priority Critical patent/EP3471462B1/en
Publication of WO2018033099A1 publication Critical patent/WO2018033099A1/zh
Priority to US16/277,336 priority patent/US11109303B2/en

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    • 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
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/20—Selecting an access point
    • 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
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access
    • 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

Definitions

  • the present application relates to the field of mobile communications technologies, and in particular, to a system information broadcast, system information receiving method and apparatus.
  • each cell periodically broadcasts system information of the cell, and System Information Broadcast is an important function in the communication system, providing common information of the cell, so that the terminal establishes wireless. connection.
  • the system information is the link between the terminal and the network.
  • the terminal completes various types of services and physical processes of wireless communication by acquiring system information broadcasted by the cell.
  • the content of the system information broadcast is divided into a plurality of System Information Blocks (SIBs), and one of the blocks is generally used as a Master Information Block (MIB). Therefore, the system information includes an MIB and at least one SIB.
  • SIBs System Information Blocks
  • MIB Master Information Block
  • the content of each SIB is different, and the broadcast period may be different.
  • system information Since system information is periodically broadcast, it consumes a lot of system resources. Especially in the future 5G system, some 5G cells use high frequency frequency, signal attenuation is large, and cell coverage is small. In order to improve its coverage, beamforming technology may be adopted, and beamforming technology can expand coverage and improve. Edge throughput and interference suppression have great advantages. However, the beamforming beam has directionality and can only be directed to a smaller direction at a time. In order to achieve omnidirectional coverage required for system information broadcasting, multiple transmissions are required. The problem of system resource consumption is even more serious. Therefore, how to effectively solve the problem of the overhead of system information broadcasting needs to be urgently solved.
  • the embodiment of the present application provides a system information broadcast method, a system information receiving method, and a device, which are used to solve the problem of how to reduce system resources occupied by broadcast system information.
  • the embodiment of the present application provides a system information broadcast method, including:
  • the first network device Determining, by the first network device, first system information of the first cell; the first cell has no broadcast channel and does not perform broadcast of system information;
  • the first network device broadcasts the first system information on a second cell of the first network device.
  • the first system information is broadcasted on the second cell of the first network device, so that the second system information can be implemented in the second
  • the system information of the cell other than the second cell is broadcasted in the cell, thereby reducing system resources occupied by the broadcast system information in the first cell, and improving resource utilization of the first cell.
  • the method further includes:
  • the first network device broadcasts second system information of the second cell in the second cell.
  • the terminal may acquire the second system information of the second cell from the second cell, so that when the access is performed, obtaining an optimal cell according to the at least one system information may be obtained for access.
  • the first cell and the second cell belong to different network devices, and the network device to which the first cell belongs is a second network device;
  • the method further includes:
  • the first network device after receiving the system information change request message sent by the second network device, the first network device sends an effective time to the second network device, thereby instructing the second network device to use the The first system information after the change.
  • the method further includes:
  • the first network device broadcasts a system information change message in the second cell, and is configured to indicate, to the terminal that receives the system information change message, that the first system information is changed.
  • the first cell and the second cell belong to different network devices, and the network device to which the first cell belongs is a second network device;
  • the method further includes:
  • the first network device broadcasts a system information change message in the second cell according to the effective time, and is configured to indicate, to the terminal that receives the system information change message, that the first system information is changed.
  • the first system information or the second system information includes any one or any of the following information:
  • a list of frequency points for broadcast system information A list of frequency points for broadcast system information.
  • the frequency used by the second cell is smaller than the frequency used by the first cell, and the second cell is broadcast by using an omnidirectional antenna.
  • the embodiment of the present application provides a system information broadcast apparatus, including:
  • a processing unit configured to determine first system information of the first cell; the first cell has no broadcast channel and does not perform broadcast of system information;
  • a transceiver unit configured to broadcast the first system information on a second cell of the first network device.
  • the transceiver unit is further configured to:
  • the first cell and the second cell belong to different network devices, and the network device to which the first cell belongs is a second network device;
  • the transceiver unit is further configured to:
  • the system information change request message includes the changed first system information
  • Determining an effective time of the changed first system information and sending the effective time to the second network device, where the second network device is used to use the changed A system of information.
  • the transceiver unit is further configured to:
  • a system information change message configured to indicate, by the terminal that receives the system information change message, that the first system information is changed.
  • the first cell and the second cell belong to different network devices, and the network device to which the first cell belongs is a second network device;
  • the transceiver unit is further configured to:
  • the change request message includes an effective time
  • the first system information or the second system information includes any one or any of the following information:
  • a list of frequency points for broadcast system information A list of frequency points for broadcast system information.
  • the frequency used by the second cell is smaller than the frequency used by the first cell, and the second cell is broadcast by using an omnidirectional antenna.
  • the embodiment of the present application provides a system information broadcast apparatus, which can implement any one of the system information broadcast methods provided by the foregoing first aspect.
  • the system information broadcast apparatus includes a processor and a transceiver configured to support the network slice configuration apparatus to perform a corresponding function in the above system information broadcast method.
  • the transceiver is coupled to the processor for supporting communication between the system information broadcast device and the terminal, and transmitting information or instructions involved in the system information broadcast method to the terminal.
  • the system information broadcast device can also include a memory for holding program instructions and coupled to the processor.
  • an embodiment of the present application provides a system information receiving method, where the method includes:
  • first system information that is broadcast by the first network device in the second cell of the first network device, where the first system information is system information of the first cell, the first cell has no broadcast channel, and No broadcast of system information;
  • the terminal camps or accesses the first cell according to the first system information.
  • the terminal acquires the first system information that is broadcasted by the first network device in the second cell of the first network device, thereby implementing the camping or accessing the first cell, thereby improving the terminal.
  • the probability of accessing the first cell improves the system resource utilization.
  • the method before the acquiring, by the terminal, the first network information that is broadcast by the first network device in the second cell of the first network device, the method further includes:
  • the terminal acquires a frequency point list of broadcast system information
  • the terminal chooses to camp on the second cell.
  • the method further includes:
  • the terminal intercepts a system information change message that is broadcast by the first network device in the second cell;
  • the terminal detects the system information change message, the first system information is changed according to the system information change message.
  • the method further includes:
  • the terminal listens to whether the first network device broadcasts a paging message in the second cell, and the paging message is used to page the terminal;
  • the terminal If the terminal detects the paging message, the terminal accesses the first cell.
  • the first system information includes a downlink timing offset of the first cell and the second cell.
  • the terminal Before the terminal accesses the first cell according to the first system information, the terminal further includes:
  • the terminal determines that the first cell is downlink synchronized with the second cell, determining, by the second SFN of the second cell, the first SFN; or
  • the terminal determines the first SFN according to the received random access message.
  • the first system information includes any one or any of the following information:
  • a list of frequency points for broadcast system information A list of frequency points for broadcast system information.
  • the frequency used by the second cell is smaller than the frequency used by the first cell, and the second cell is broadcast by using an omnidirectional antenna.
  • the first cell and the second cell belong to different network devices, and the network device to which the first cell belongs is a second network device.
  • the embodiment of the present application provides a system information receiving apparatus, including:
  • a transceiver unit configured to acquire first system information that is broadcast by a first network device in a second cell of the first network device, where the first system information is system information of a first cell, where the first cell is No broadcast channel and no broadcast of system information;
  • a processing unit configured to camp or access the first cell according to the first system information.
  • the transceiver unit is further configured to:
  • the processing unit is further configured to: determine that a frequency point of the second cell exists in a frequency point list of the broadcast system information, and determine that the second cell meets a camping condition;
  • the transceiver unit is further configured to:
  • the first system information is changed according to the system information change message.
  • the transceiver unit is further configured to:
  • the first system information includes a downlink timing offset of the first cell and the second cell.
  • the processing unit is further configured to:
  • the first SFN is determined according to the received random access message.
  • the first system information includes any one or any of the following information:
  • a list of frequency points for broadcast system information A list of frequency points for broadcast system information.
  • the frequency used by the second cell is smaller than the frequency used by the first cell, and the second cell is broadcast by using an omnidirectional antenna.
  • the first cell and the second cell belong to different network devices, and the network device to which the first cell belongs is a second network device.
  • the embodiment of the present application provides a system information receiving apparatus, which can implement any system information receiving method provided by the foregoing first aspect.
  • the system information receiving apparatus includes a processor and a transceiver, and the processor is configured to support the network slice configuration apparatus to perform a corresponding function in the above system information receiving method.
  • the transceiver is coupled to the processor for supporting communication between the system information receiving device and the terminal, and transmitting information or instructions involved in the system information receiving method to the terminal.
  • the system information receiving device may further include a memory for holding program instructions and coupled to the processor.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the system information broadcasting apparatus provided in the second aspect, which includes a program designed to execute the above first aspect.
  • the embodiment of the present application provides a computer storage medium for storing computer software instructions used by the system information receiving apparatus provided in the fourth aspect, which includes a program designed to execute the foregoing third aspect.
  • 1 is a schematic diagram of a system architecture of an LTE system
  • FIG. 2 is a schematic diagram of a communication network
  • FIG. 3 is a schematic flowchart of a method for broadcasting system information according to an embodiment of the present application
  • FIG. 4 is a schematic flowchart of a system information broadcast method according to an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of a system information broadcast method according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a system information broadcast apparatus according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a system information broadcast apparatus according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of a system information broadcast apparatus according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a system information broadcast apparatus according to an embodiment of the present application.
  • FIG. 1 it is a schematic diagram of a system architecture of an LTE system.
  • the description of each network element and interface in Figure 1 is as follows:
  • MME Mobility Management Entity
  • S-GW Server GateWay
  • the MME is a key control node in LTE and belongs to the core network element. It is mainly responsible for the signaling processing part, that is, the control plane function. Includes access control, mobility management, attach and detach, session management, and gateway selection.
  • the S-GW is an important network element of the core network in LTE. It is mainly responsible for the user plane function of user data forwarding, that is, routing and forwarding of data packets under the control of the MME.
  • the eNB is a base station in LTE. It is mainly responsible for radio resource management, QoS (Quality of Service) management, data compression, and encryption on the air interface side. To the core network side, the eNB is mainly responsible for forwarding control plane signaling to the MME and forwarding user plane service data to the S-GW.
  • QoS Quality of Service
  • the UE is a device that accesses the network side through the eNB in LTE, and may be, for example, a handheld terminal, a notebook computer, or other device that can access the network.
  • S1 interface is a standard interface between the eNB and the core network.
  • the eNB is connected to the MME through the S1-MME interface, and is used for control signaling transmission; the eNB is connected to the S-GW through the S1-U interface, and is used for transmission of user data.
  • the S1-MME interface and the S1-U interface are collectively referred to as an S1 interface.
  • the X2 interface is a standard interface between the eNB and the eNB, and is used to implement interworking between the base stations.
  • the Uu interface is a radio interface between the UE and the base station, and the UE accesses the LTE network through the Uu interface.
  • the solution provided by the embodiment of the present application is also applicable to a scenario in which a terminal moves between different cells. Specifically, as shown in FIG. 2, when the terminal 204 moves from the area covered by the base station 201 to the area covered by the base station 202, it is necessary to quickly determine information such as system information of the cell under the base station 202.
  • the base station 201 and the base station 202 may also cover a plurality of micro base stations 203.
  • terminal includes but is not limited to a mobile station, a fixed or mobile subscriber unit, a pager, a cellular phone, a personal digital assistant (PDA), a computer or any other type capable of being in a wireless environment.
  • PDA personal digital assistant
  • network device includes, but is not limited to, a base station, a node, a base station controller, an Access Point (AP), or any other type of interface device capable of operating in a wireless environment.
  • FIG. 3 a schematic flowchart of a system information broadcast method according to an embodiment of the present application is provided.
  • the method includes:
  • Step 301 The first network device determines first system information of the first cell.
  • the first cell has no broadcast channel and does not broadcast system information.
  • the frequency used by the first cell is a high frequency frequency
  • the first cell generally communicates with the terminal using a beamforming technique.
  • Step 302 The first network device broadcasts the first system information on a second cell of the first network device.
  • the coverage area of the first cell and the coverage area of the second cell have an overlapping area.
  • Step 303 The terminal acquires first system information that is broadcast by the first network device in the second cell of the first network device, where the first system information is system information of the first cell, and the first cell does not.
  • the channel is broadcast and no broadcast of system information is performed.
  • Step 304 The terminal camps or accesses the first cell according to the first system information.
  • the system information may be classified into an MIB and an SIB, and the specific content included in the system information may be referred to in the LTE standard and the like, and details are not described herein again.
  • the first network device may directly determine the first system information of the first cell, for example, the first network device is configured according to the first network device.
  • the load condition determines the system information of the first cell.
  • the first network device may request the first system information from the second network device, The first system information may be actively reported by the second network device to the first network device, which is not limited by the embodiment of the present application.
  • the first system information may include any one or any of the following information:
  • a frequency point list of broadcast system information wherein the frequency point list of the broadcast system information includes at least one frequency point, and the frequency point in the frequency point list of the broadcast system information is a frequency point of the broadcast system information.
  • the terminal can directly determine the frequency of the broadcast system information according to the frequency point list of the broadcast system information, thereby quickly determining the system information.
  • the first cell adopts a beamforming technology, so as to generate a beam with directivity.
  • the first cell is not assigned a system information broadcast channel and cannot broadcast system information.
  • the first network device may also broadcast the second system information of the second cell in the second cell while broadcasting the first system information.
  • the terminal may acquire the second system information of the second cell from the second cell, so that when the access is performed, obtaining an optimal cell according to the at least one system information may be obtained for access.
  • any one or any of the following information may be included in the second system information:
  • a list of frequency points for broadcast system information A list of frequency points for broadcast system information.
  • the frequency used by the second cell is smaller than the frequency used by the first cell, and the second cell uses an omnidirectional antenna to broadcast the system in the entire second cell.
  • Information that is, the second cell does not use beamforming technology to broadcast system information.
  • the first network device After determining that the first system information is changed, the first network device broadcasts the changed first system information in the second cell.
  • the first cell and the second cell belong to the first network device.
  • the first network device may directly determine the changed first system information, and broadcast the changed in the second cell. First system information.
  • the network device to which the first cell belongs is the second network device.
  • the first network device receives the system information change request message sent by the second network device, and the system information change request message includes the changed first system information.
  • the system information change request message is sent by the second network device after determining that the first system information needs to be changed.
  • the first network device After receiving the system information change request message, the first network device determines the effective time of the changed first system information, and sends the effective time to the second network device, where The second network device uses the changed first system information at the effective time. At the same time, the first network device may broadcast a system information change message in the second cell, and indicate, to the terminal that receives the system information change message, that the first system information is changed.
  • the effective time may also be determined by the second network device.
  • the first network device receives the system information change request message sent by the second network device; the change request message includes an effective time.
  • the first network device broadcasts a system information change message in the second cell according to the effective time, and is configured to indicate, to the terminal that receives the system information change message, that the first system information is changed.
  • the system information change message may include at least one of the following: the changed first system information; the effective time; the cell identifier of the first cell.
  • the effective time is used to indicate the effective time of the first system information after the change.
  • the system information change message may be a paging message.
  • the first network device may broadcast the first system information and the second system information on the second cell, and may also broadcast system information of other cells, where the first network device is in the second cell.
  • the number of the information in the broadcast system is not limited in the embodiment of the present application, and may be determined according to actual conditions, and details are not described herein again.
  • the first system information may be broadcast by the network device other than the first network device, and the embodiment of the present application is not limited.
  • the system information of the multiple cells may have some or all of the content being the same, so in order to save the system resource overhead of the broadcast,
  • the content of the system information may be divided into one or more system information sub-blocks, and each system information sub-block has one or more sets of configurations, indicating for each cell which configuration of the system information sub-block of the cell is used, or For each set of configurations, one or more cell identifiers used by the configuration are used.
  • the cells corresponding to the one or more cell identifiers use the same set of configurations, and each set of configurations is broadcast only once by the first network device in each cycle. , which saves system resources.
  • step 303 the terminal needs to camp in the second cell first.
  • the terminal first searches for all possible frequency points, determines the frequency of the broadcast system information therefrom, and then selects a cell that meets the camping condition from the cells corresponding to the frequency of the broadcast system information. In this implementation manner, if the terminal determines to search for the frequency point broadcast system information of the second cell and determines that the second cell meets the camping condition, the terminal selects to camp on the second cell.
  • the terminal first obtains a frequency point list of the broadcast system information, and then determines that the frequency point of the second cell exists in the frequency point list of the broadcast system information, and determines that the second cell meets the resident frequency. Condition, the terminal chooses to camp on the second cell.
  • the manner in which the terminal obtains the frequency list of the broadcast system information is not limited in the embodiment of the present application.
  • the terminal can obtain the frequency point list of the broadcast system information through the first network device, and obtain the frequency point list of the broadcast system information in other manners, and details are not described herein again.
  • step 303 after the terminal camps on the second cell, the terminal listens to the first system information and the like of the first cell broadcast by the first network device in the second cell.
  • the terminal may perform cell reselection in step 304 to camp or access the first cell.
  • the terminal may reselect the cell to a cell that does not broadcast system information but the terminal has obtained its system information.
  • step 304 after the terminal camps on or accesses the first cell, the terminal may also listen to whether the first network device broadcasts a system information change message in the second cell. And if the terminal detects the system information change message, the first system information is changed according to the system information change message.
  • the content included in the system information change message may refer to the foregoing description, and details are not described herein again.
  • the terminal may also listen to whether the first network device broadcasts a paging message in the second cell, where the paging message is used for paging. The terminal. If the terminal detects the paging message, the terminal accesses the first cell.
  • the terminal when the terminal listens to the paging message in the first cell, the terminal calculates the paging occasion of the paging message according to the parameter provided by the second cell.
  • the terminal may access the first cell according to the first system information.
  • the terminal may need to determine the SFN (System Frame Number) of the first cell.
  • SFN System Frame Number
  • the SFN of the first cell is referred to as a first SFN
  • the first The SFN of the two cells is referred to as a second SFN.
  • the terminal determines the first SFN.
  • the terminal determines that the first cell is downlink-synchronized with the second cell, determining, by the second SFN of the second cell, the first SFN.
  • the terminal may determine that the first SFN is the same as the second SFN, and the terminal may directly use the second SFN as the first SFN.
  • the first system information received by the terminal includes a downlink timing offset of the first cell and the second cell, and the terminal may pass the second system frame number of the second cell.
  • the SFN and the downlink timing offset determine a first system frame number SFN of the first cell. Specifically, the terminal determines the sum of the downlink timing offset and the second SFN as the first SFN.
  • the terminal may determine the first SFN according to the received random access message.
  • the random access message may be a RAR (Random Access Response) including a first SFN sent by the network device corresponding to the first cell to the terminal when the terminal accesses the first cell. ) message.
  • RAR Random Access Response
  • FIG. 4 a schematic diagram of a system information broadcast process provided by an embodiment of the present application is shown.
  • the first cell and the second cell respectively belong to different network devices, and the scenario in which the first cell and the second cell belong to the same network device may refer to FIG. 4 , and details are not described herein again.
  • Step 401 The second network device sends the first system information of the first cell to the first network device.
  • Step 402 The first network device broadcasts the first system information in the second cell.
  • Step 403 The terminal camps on the first cell according to the first system information.
  • Step 404 The first network device broadcasts a paging message in the second cell, where the paging message is used to page the terminal.
  • Step 405 After the terminal listens to the paging message in the first cell, the terminal accesses the first cell.
  • FIG. 5 a schematic diagram of a system information broadcast process provided by an embodiment of the present application is shown.
  • the terminal camps on the first cell and listens for messages broadcast on the second cell.
  • the first cell and the second cell belong to different network devices
  • the scenario in which the first cell and the second cell belong to the same network device reference may be made to the description in FIG. 5, and details are not described herein again.
  • Step 501 A system information change request message sent by the second network device to the first network device.
  • the system information change request message includes the changed first system information.
  • Step 502 The first network device determines an effective time of the changed first system information.
  • Step 503 The first network device returns an effective time to the second network device.
  • Step 504 The first network device broadcasts a system information change message in the second cell, where the terminal that receives the system information change message indicates that the first system information is changed.
  • step 503 and step 504 is not limited in the embodiment of the present application.
  • Step 505 The second network device uses the changed first system information at the effective time.
  • Step 506 The terminal changes the first system information.
  • the embodiment of the present application further provides a system information broadcasting apparatus, which can execute the foregoing method embodiments.
  • FIG. 6 a schematic structural diagram of a system information broadcasting apparatus is provided in the embodiment of the present application, where the apparatus includes:
  • the processing unit 601 is configured to determine first system information of the first cell; the first cell has no broadcast channel and does not perform broadcast of system information;
  • the transceiver unit 602 is configured to broadcast the first system information on the second cell of the first network device.
  • the transceiver unit 602 is further configured to:
  • the first cell and the second cell belong to different network devices, and the network device to which the first cell belongs is a second network device;
  • the transceiver unit 602 is further configured to:
  • the system information change request message includes the changed first system information
  • Determining an effective time of the changed first system information and sending the effective time to the second network device, where the second network device is used to use the changed A system of information.
  • the transceiver unit 602 is further configured to:
  • a system information change message configured to indicate, by the terminal that receives the system information change message, that the first system information is changed.
  • the first cell and the second cell belong to different network devices, and the network device to which the first cell belongs is a second network device;
  • the transceiver unit 602 is further configured to:
  • the change request message includes an effective time
  • the first system information or the second system information includes any one or any of the following information:
  • a list of frequency points for broadcast system information A list of frequency points for broadcast system information.
  • the frequency used by the second cell is smaller than the frequency used by the first cell, and the second cell is broadcast by using an omnidirectional antenna.
  • the embodiment of the present application further provides a system information receiving apparatus, which can perform the foregoing method embodiments.
  • FIG. 7 is a schematic structural diagram of a system information receiving apparatus according to an embodiment of the present application, where the apparatus includes:
  • the transceiver unit 701 is configured to acquire first system information that is broadcast by the first network device in the second cell of the first network device, where the first system information is system information of the first cell, where the first The cell has no broadcast channel and does not broadcast system information;
  • the processing unit 702 is configured to camp or access the first cell according to the first system information.
  • the transceiver unit 701 is further configured to:
  • the processing unit 702 is further configured to: determine that a frequency point of the second cell exists in a frequency point list of the broadcast system information, and determine that the second cell meets a camping condition;
  • the transceiver unit 701 is further configured to:
  • the first system information is changed according to the system information change message.
  • the transceiver unit 701 is further configured to:
  • the first system information includes a downlink timing offset of the first cell and the second cell.
  • the processing unit 702 is further configured to:
  • the first SFN is determined according to the received random access message.
  • the first system information includes any one or any of the following information:
  • a list of frequency points for broadcast system information A list of frequency points for broadcast system information.
  • the frequency used by the second cell is smaller than the frequency used by the first cell, and the second cell is broadcast by using an omnidirectional antenna.
  • the first cell and the second cell belong to different network devices, and the network device to which the first cell belongs is a second network device.
  • the embodiment of the present application further provides a system information receiving apparatus, which can perform the foregoing method embodiments.
  • the embodiment of the present application further provides a system information broadcasting apparatus, which can execute the foregoing method embodiments.
  • FIG. 8 a schematic structural diagram of a system information broadcasting apparatus is provided in an embodiment of the present application.
  • the apparatus includes a processor 801, a memory 802, and a transceiver 803.
  • the memory 802 is configured to store program instructions and is coupled to the processor 801.
  • the transceiver 803 is coupled to the processor 801 for supporting a system information broadcast device to communicate with a terminal.
  • the processor 801 is configured to determine first system information of the first cell; the first cell has no broadcast channel and does not perform broadcast of system information;
  • the transceiver 803 is configured to broadcast the first system information on a second cell of the first network device.
  • FIG. 9 a schematic structural diagram of a system information receiving apparatus is provided in an embodiment of the present application.
  • the apparatus includes a processor 901, a memory 902, and a transceiver 903.
  • the memory 902 is configured to store program instructions and is coupled to the processor 901.
  • the transceiver 903 is coupled to the processor 901 for supporting a system information receiving device to communicate with a first network device.
  • the transceiver 903 is configured to acquire first system information that is broadcast by the first network device in the second cell of the first network device, where the first system information is system information of the first cell, where the A cell has no broadcast channel and does not broadcast system information;
  • the processor 901 is configured to camp or access the first cell according to the first system information.
  • the transceiver can be a wired transceiver, a wireless transceiver, or a combination thereof.
  • the wired transceiver can be, for example, an Ethernet interface.
  • the Ethernet interface can be an optical interface, an electrical interface, or a combination thereof.
  • Wireless transceiver example For example, it can be a wireless local area network transceiver, a cellular network transceiver, or a combination thereof.
  • the processor may be a central processing unit (English: central processing unit, abbreviated: CPU), a network processor (English: network processor, abbreviated: NP) or a combination of CPU and NP.
  • the processor may further include a hardware chip.
  • the hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (abbreviated as PLD), or a combination thereof.
  • the above PLD can be a complex programmable logic device (English: complex programmable logic device, abbreviation: CPLD), field-programmable gate array (English: field-programmable gate array, abbreviation: FPGA), general array logic (English: generic array Logic, abbreviation: GAL) or any combination thereof.
  • the memory may include a volatile memory (English: volatile memory), such as random access memory (English: random-access memory, abbreviation: RAM); the memory may also include non-volatile memory (English: non-volatile memory).
  • read-only memory (English: read-only memory, abbreviation: ROM), flash memory (English: flash memory), hard disk (English: hard disk drive, abbreviation: HDD) or solid state drive (English: solid-state drive, Abbreviation: SSD); the memory may also include a combination of the above types of memory.
  • the bus interface may also be included in FIG. 8 to FIG. 9.
  • the bus interface may include any number of interconnected buses and bridges, and specifically, various circuits of the memory represented by one or more processors and memories represented by the processor. Linked together.
  • the bus interface can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • the transceiver provides means for communicating with various other devices on a transmission medium.
  • the processor is responsible for managing the bus architecture and the usual processing, and the memory can store the data that the processor uses when performing operations.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

一种系统信息广播、系统信息接收方法及装置，包括：第一网络设备确定第一小区的第一系统信息；所述第一小区没有广播信道且不进行系统信息的广播；所述第一网络设备在所述第一网络设备的第二小区上广播所述第一系统信息。

Description

一种系统信息广播、系统信息接收方法及装置
本申请要求在2016年8月17日提交国家专利局、申请号为201610681489.2、发明名称为“一种系统信息广播、系统信息接收方法及装置”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
本申请涉及移动通信技术领域，尤其涉及一种系统信息广播、系统信息接收方法及装置。
背景技术
在移动通信系统中，每个小区会周期性的广播该小区的系统信息，系统信息广播(System Information Broadcast)是通信系统中的一个重要功能，提供了该小区的公共信息，以便于终端建立无线连接。系统信息是连接终端和网络的纽带，终端通过获取到小区广播的系统信息，完成无线通信各类业务和物理过程。
系统信息广播的内容被划分为多个系统信息块(System Information Blocks，SIB)，一般将其中一个块作为主信息块(Master Information Block，MIB)。因此系统信息就包括一个MIB以及至少一个SIB。每个SIB的内容不同，广播的周期可能不同。
由于系统信息是周期广播的，因此占用大量的系统资源。尤其在将来的5G系统中，有些5G小区采用高频频率，信号衰减大，小区覆盖范围小，为了提高其覆盖，可能采用波束赋形(beamforming)技术，波束赋形技术在扩大覆盖范围、改善边缘吞吐量以及干扰抑止等方面都有很大的优势。然而beamforming的波束具有方向性，每次只能打向一个较小的方向，为了实现系统信息广播要求的全向覆盖，需要多次发送。系统资源消耗的问题就更严重。因此，如何有效解决系统信息广播的开销问题是需要迫切解决的。
发明内容
本申请实施例提供一种系统信息广播方法、系统信息接收方法及装置，用以解决如何减少广播系统信息所占用的系统资源的问题。
第一方面，本申请实施例提供一种系统信息广播方法，包括：
第一网络设备确定第一小区的第一系统信息；所述第一小区没有广播信道且不进行系统信息的广播；
所述第一网络设备在所述第一网络设备的第二小区上广播所述第一系统信息。
根据本申请实施例提供的方法，第一网络设备确定第一小区的第一系统信息之后，在所述第一网络设备的第二小区上广播所述第一系统信息，从而可以实现在第二小区中广播除了第二小区之外的小区的系统信息，从而减少广播系统信息在第一小区中所占用的系统资源，提高第一小区的资源利用率。
可选的，所述方法还包括：
所述第一网络设备在所述第二小区中广播所述第二小区的第二系统信息。
通过上述方法，终端可以从第二小区获取到第二小区的第二系统信息，从而可以在进行接入时，获得根据至少一个系统信息选择一个最佳的小区进行接入。
可选的，所述第一小区与所述第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备；
所述第一网络设备确定第一小区的第一系统信息之后，还包括：
所述第一网络设备接收所述第二网络设备发送的系统信息变更请求消息；所述系统信息变更请求消息中包括变更后的第一系统信息；
所述第一网络设备确定所述变更后的第一系统信息的生效时间，并将所述生效时间发送给所述第二网络设备，用于指示所述第二网络设备在所述生效时间使用所述变更后的第一系统信息。
根据上述方法，第一网络设备接收到第二网络设备发送的系统信息变更请求消息之后，向所述第二网络设备发送生效时间，从而指示所述第二网络设备在所述生效时间使用所述变更后的第一系统信息。
可选的，所述将所述生效时间发送给所述第二网络设备之后，还包括：
所述第一网络设备在所述第二小区中广播系统信息变更消息，用于向接收到所述系统信息变更消息的终端指示出所述第一系统信息发生变更。
可选的，所述第一小区与所述第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备；
所述第一网络设备确定第一小区的第一系统信息之后，还包括：
所述第一网络设备接收所述第二网络设备发送的系统信息变更请求消息；所述变更请求消息中包括生效时间；
所述第一网络设备根据所述生效时间在所述第二小区中广播系统信息变更消息，用于向接收到所述系统信息变更消息的终端指示出所述第一系统信息发生变更。
可选的，所述第一系统信息或所述第二系统信息中包括以下任意一种或任意多种信息：
所述第一小区与所述第二小区的下行定时偏差；
广播系统信息的频点列表。
可选的，所述第二小区所使用的频点小于所述第一小区所使用的频点，且所述第二小区采用全向天线进行广播。
第二方面，本申请实施例提供一种系统信息广播装置，包括：
处理单元，用于确定第一小区的第一系统信息；所述第一小区没有广播信道且不进行系统信息的广播；
收发单元，用于在所述第一网络设备的第二小区上广播所述第一系统信息。
可选的，所述收发单元还用于：
在所述第二小区中广播所述第二小区的第二系统信息。
可选的，所述第一小区与所述第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备；
所述收发单元还用于：
接收所述第二网络设备发送的系统信息变更请求消息；所述系统信息变更请求消息中包括变更后的第一系统信息；
确定所述变更后的第一系统信息的生效时间，并将所述生效时间发送给所述第二网络设备，用于指示所述第二网络设备在所述生效时间使用所述变更后的第一系统信息。
可选的，所述收发单元还用于：
在所述第二小区中广播系统信息变更消息，用于向接收到所述系统信息变更消息的终端指示出所述第一系统信息发生变更。
可选的，所述第一小区与所述第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备；
所述收发单元还用于：
接收所述第二网络设备发送的系统信息变更请求消息；所述变更请求消息中包括生效时间；
根据所述生效时间在所述第二小区中广播系统信息变更消息，用于向接收到所述系统信息变更消息的终端指示出所述第一系统信息发生变更。
可选的，所述第一系统信息或所述第二系统信息中包括以下任意一种或任意多种信息：
所述第一小区与所述第二小区的下行定时偏差；
广播系统信息的频点列表。
可选的，所述第二小区所使用的频点小于所述第一小区所使用的频点，且所述第二小区采用全向天线进行广播。
第三方面，本申请实施例提供一种系统信息广播装置，可以执行实现上述第一方面提供的任意一种系统信息广播方法。
在一种可能的设计中，该系统信息广播装置的结构中包括处理器和收发信机，所述处理器被配置为支持该网络切片配置装置执行上述系统信息广播方法中相应的功能。所述收发信机与所述处理器耦合，用于支持系统信息广播装置与终端之间的通信，向终端发送上述系统信息广播方法中所涉及的信息或者指令。系统信息广播装置中还可以包括存储器，所述存储器用于保存程序指令并与所述处理器耦合。
第四方面，本申请实施例提供一种系统信息接收方法，该方法包括：
终端获取第一网络设备在所述第一网络设备的第二小区中广播的第一系统信息；其中，所述第一系统信息为第一小区的系统信息，所述第一小区没有广播信道且不进行系统信息的广播；
所述终端根据所述第一系统信息驻留或接入所述第一小区。
根据本申请实施例提供的方法，终端通过获取第一网络设备在所述第一网络设备的第二小区中广播的第一系统信息，实现驻留或接入所述第一小区，从而提高终端接入第一小区的概率，提高了系统资源利用率。
可选的，所述终端获取第一网络设备在所述第一网络设备的第二小区中广播的第一系统信息之前，还包括：
所述终端获取广播系统信息的频点列表；
所述终端确定所述广播系统信息的频点列表中存在所述第二小区的频点且确定所述第二小区满足驻留条件；
所述终端选择驻留到所述第二小区。
可选的，所述终端根据所述第一系统信息驻留或接入所述第一小区之后，还包括：
所述终端侦听所述第一网络设备是否在所述第二小区中广播的系统信息变更消息；
若所述终端侦听到所述系统信息变更消息，则根据所述系统信息变更消息对所述第一系统信息进行变更。
可选的，所述终端根据所述第一系统信息驻留所述第一小区之后，还包括：
所述终端侦听所述第一网络设备是否在所述第二小区中广播的寻呼消息，所述寻呼消息用于寻呼所述终端；
若所述终端侦听到所述寻呼消息，所述终端接入到所述第一小区。
可选的，所述第一系统信息中包括所述第一小区与所述第二小区的下行定时偏差；
所述终端根据所述第一系统信息接入所述第一小区之前，还包括：
所述终端通过第二小区的第二系统帧号SFN以及所述下行定时偏差确定所述第一小区的第一SFN；或者
所述终端若确定所述第一小区与所述第二小区下行同步，则根据所述第二小区的第二SFN确定所述第一SFN；或者
所述终端根据接收到的随机接入消息确定所述第一SFN。
可选的，所述第一系统信息中包括以下任意一种或任意多种信息：
所述第一小区与所述第二小区的下行定时偏差；
广播系统信息的频点列表。
可选的，所述第二小区所使用的频点小于所述第一小区所使用的频点，且所述第二小区采用全向天线进行广播。
可选的，所述第一小区与所述第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备。
第五方面，本申请实施例提供一种系统信息接收装置，包括：
收发单元，用于获取第一网络设备在所述第一网络设备的第二小区中广播的第一系统信息；其中，所述第一系统信息为第一小区的系统信息，所述第一小区没有广播信道且不进行系统信息的广播；
处理单元，用于根据所述第一系统信息驻留或接入所述第一小区。
可选的，所述收发单元还用于：
获取广播系统信息的频点列表；
所述处理单元还用于，确定所述广播系统信息的频点列表中存在所述第二小区的频点且确定所述第二小区满足驻留条件；
驻留到所述第二小区。
可选的，所述收发单元还用于：
侦听所述第一网络设备是否在所述第二小区中广播的系统信息变更消息；
若侦听到所述系统信息变更消息，则根据所述系统信息变更消息对所述第一系统信息进行变更。
可选的，所述收发单元还用于：
侦听所述第一网络设备是否在所述第二小区中广播的寻呼消息，所述寻呼消息用于寻呼所述终端；
若侦听到所述寻呼消息，接入到所述第一小区。
可选的，所述第一系统信息中包括所述第一小区与所述第二小区的下行定时偏差；
所述处理单元还用于：
通过第二小区的第二系统帧号SFN以及所述下行定时偏差确定所述第一小区的第一SFN；或者
若确定所述第一小区与所述第二小区下行同步，则根据所述第二小区的第二SFN确定 所述第一SFN；或者
根据接收到的随机接入消息确定所述第一SFN。
可选的，所述第一系统信息中包括以下任意一种或任意多种信息：
所述第一小区与所述第二小区的下行定时偏差；
广播系统信息的频点列表。
可选的，所述第二小区所使用的频点小于所述第一小区所使用的频点，且所述第二小区采用全向天线进行广播。
可选的，所述第一小区与所述第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备。
第六方面，本申请实施例提供一种系统信息接收装置，可以执行实现上述第一方面提供的任意一种系统信息接收方法。
在一种可能的设计中，该系统信息接收装置的结构中包括处理器和收发信机，所述处理器被配置为支持该网络切片配置装置执行上述系统信息接收方法中相应的功能。所述收发信机与所述处理器耦合，用于支持系统信息接收装置与终端之间的通信，向终端发送上述系统信息接收方法中所涉及的信息或者指令。系统信息接收装置中还可以包括存储器，所述存储器用于保存程序指令并与所述处理器耦合。
第七方面，本申请实施例提供了一种计算机存储介质，用于储存为上述第二方面提供的系统信息广播装置所用的计算机软件指令，其包含用于执行上述第一方面所设计的程序。
第八方面，本申请实施例提供了一种计算机存储介质，用于储存为上述第四方面提供的系统信息接收装置所用的计算机软件指令，其包含用于执行上述第三方面所设计的程序。
附图说明
图1为LTE系统的系统架构示意图；
图2为一种通信网络示意图；
图3为本申请实施例提供的一种系统信息广播方法流程示意图；
图4为本申请实施例提供的一种系统信息广播方法流程示意图；
图5为本申请实施例提供的一种系统信息广播方法流程示意图；
图6为本申请实施例提供的一种系统信息广播装置结构示意图；
图7为本申请实施例提供的一种系统信息广播装置结构示意图；
图8为本申请实施例提供的一种系统信息广播装置结构示意图；
图9为本申请实施例提供的一种系统信息广播装置结构示意图。
具体实施方式
本申请实施例可以应用于LTE(Long Term Evolution，长期演进)以及5G等通信系统。如图1所示，为LTE系统的系统架构示意图。图1中各网元和接口的描述如下：
MME(Mobility Management Entity，移动性管理实体)/S-GW(Serving GateWay，服务网关)：MME是LTE中的关键控制节点，属于核心网网元，主要负责信令处理部分，即控制面功能，包括接入控制、移动性管理、附着与去附着、会话管理功能以及网关选择等功能。S-GW是LTE中核心网的重要网元，主要负责用户数据转发的用户面功能，即在MME的控制下进行数据包的路由和转发。
eNB(evolved Node B，演进型基站)：eNB是LTE中的基站，主要负责空口侧的无线资源管理、QoS(Quality of Service，服务质量)管理、数据压缩和加密等功能。往核心网侧，eNB主要负责向MME转发控制面信令以及向S-GW转发用户面业务数据。
UE(User Equipment，用户设备)：UE是LTE中通过eNB接入网络侧的设备，例如可以是手持终端、笔记本电脑或是其他可以接入网络的设备。
S1接口：是eNB与核心网之间的标准接口。其中eNB通过S1-MME接口与MME连接，用于控制信令的传输；eNB通过S1-U接口与S-GW连接，用于用户数据的传输。其中S1-MME接口和S1-U接口统称为S1接口。
X2接口：eNB与eNB之间的标准接口，用于实现基站之间的互通。
Uu接口：Uu接口是UE与基站之间的无线接口，UE通过Uu接口接入到LTE网络。
本申请实施例提供的方案还适用于终端在不同小区间移动的场景中。具体的，如图2所示，终端204从基站201覆盖的区域移动到基站202覆盖的区域中时，需要快速确定出基站202下的小区的系统信息等信息。基站201以及基站202中还可以覆盖多个微基站203。
本申请实施例中，术语“终端”包括但不限于移动站、固定或移动用户单元、寻呼机、蜂窝电话、个人数字助理(Personal Digital Assistant，PDA)、计算机或任何其它类型的能在无线环境中工作的用户设备(user equipment)。术语“网络设备”包括但不限于基站、节点、基站控制器、接入点(Access Point，AP)或任何其它类型的能够在无线环境中工作的接口设备。
基于上述描述，如图3所示，为本申请实施例提供的一种系统信息广播方法流程示意图。
参见图3，该方法包括：
步骤301：第一网络设备确定第一小区的第一系统信息；
在一种实现方式中，所述第一小区没有广播信道且不进行系统信息的广播。
典型地,第一小区使用的频率是高频频率,第一小区一般采用beamforming(波束赋形)技术与终端进行通信。
步骤302：所述第一网络设备在所述第一网络设备的第二小区上广播所述第一系统信息。
本申请实施例中，所述第一小区的覆盖区域与所述第二小区的覆盖区域存在重叠区域。
步骤303：终端获取第一网络设备在所述第一网络设备的第二小区中广播的第一系统信息；其中，所述第一系统信息为第一小区的系统信息，所述第一小区没有广播信道且不进行系统信息的广播。
步骤304：所述终端根据所述第一系统信息驻留或接入所述第一小区。
本申请实施例中，系统信息可分为MIB和SIB，系统信息包含的具体内容可以参考LTE标准等标准中的描述，在此不再赘述。
步骤301中，当第一小区与第二小区均属于第一网络设备时，所述第一网络设备可以直接确定所述第一小区的第一系统信息，例如第一网络设备根据第一网络设备的负载情况确定第一小区的系统信息。
当第一小区与第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备时，第一网络设备可以向第二网络设备请求所述第一系统信息，也可以由第二网络设备向第一网络设备主动上报第一系统信息，本申请实施例对此并不限定。
可选的，本申请实施例中，所述第一系统信息中可以包括以下任意一种或任意多种信息：
所述第一小区与所述第二小区的下行定时偏差；
广播系统信息的频点列表；其中，广播系统信息的频点列表中至少包括一个频点，广播系统信息的频点列表中的频点为广播系统信息的频点。终端可以直接根据广播系统信息的频点列表确定广播系统信息的频点，从而快速确定系统信息。
可选的，本申请实施例中，第一小区采用波束赋形技术，从而实现产生具有指向性的波束。同时，第一小区未被分配系统信息广播信道，无法广播系统信息。
步骤302中，第一网络设备在广播第一系统信息的同时，还可以在第二小区中广播所述第二小区的第二系统信息。通过上述方法，终端可以从第二小区获取到第二小区的第二系统信息，从而可以在进行接入时，获得根据至少一个系统信息选择一个最佳的小区进行接入。
可选的，所述第二系统信息中可以中包括以下任意一种或任意多种信息：
所述第一小区与所述第二小区的下行定时偏差；
广播系统信息的频点列表。
可选的，本申请实施例中，所述第二小区所使用的频点小于所述第一小区所使用的频点，且所述第二小区使用全向天线在整个第二小区中广播系统信息，即所述第二小区不使用beamforming技术进行系统信息的广播。
第一网络设备在确定第一系统信息发生变更后，在第二小区中广播变更后的第一系统信息。
一种可能的场景中，第一小区与第二小区均属于第一网络设备，此时，第一网络设备可以直接确定发生变更后的第一系统信息，并在第二小区中广播变更后的第一系统信息。
一种可能的场景中，第一小区所属的网络设备为第二网络设备。此时，所述第一网络设备接收所述第二网络设备发送的系统信息变更请求消息；所述系统信息变更请求消息中包括变更后的第一系统信息。所述系统信息变更请求消息为所述第二网络设备确定第一系统信息需要变更后发送的。
所述第一网络设备接收到系统信息变更请求消息之后，确定所述变更后的第一系统信息的生效时间，并将所述生效时间发送给所述第二网络设备，用于指示所述第二网络设备在所述生效时间使用所述变更后的第一系统信息。同时，所述第一网络设备可以在所述第二小区中广播系统信息变更消息，用于向接收到所述系统信息变更消息的终端指示出所述第一系统信息发生变更。
在第一小区所属的网络设备为第二网络设备的场景中，还可以由第二网络设备确定生效时间。此时第一网络设备接收所述第二网络设备发送的系统信息变更请求消息；所述变更请求消息中包括生效时间。然后，第一网络设备根据所述生效时间在所述第二小区中广播系统信息变更消息，用于向接收到所述系统信息变更消息的终端指示出所述第一系统信息发生变更。
可选的，系统信息变更消息中可以包括以下至少一项：变更后的第一系统信息；生效时间；第一小区的小区标识。生效时间用于指示变更后的第一系统信息的生效时间。
当然，以上只是示例，系统信息变更消息中还可以包括其他信息，在此不再赘述。
可选的，本申请实施例中，系统信息变更消息可以为paging(寻呼)消息。
需要说明的是，本申请实施例中，第一网络设备在第二小区上广播第一系统信息以及第二系统信息的同时，还可以广播其他小区的系统信息，第一网络设备在第二小区中广播系统信息的数量，本申请实施例并不限定，具体可以根据实际情况确定，在此不再赘述。同时，第一系统信息在被第一网络设备广播的同时，还可以由除了第一网络设备之外的网络设备广播，本申请实施例并不限定。
可选的，本申请实施例中，考虑到第二小区可能广播多个小区的系统信息，这多个小区的系统信息可能有部分或全部内容是相同的，因此为了节省广播的系统资源开销，可以将系统信息的内容划分成一个或多个系统信息子块，每个系统信息子块有一套或多套配置，为每个小区指明该小区的系统信息子块使用的是哪套配置，或者为每套配置指明该配置被使用的一个或多个小区标识，这一个或多个小区标识对应的小区使用的是同一套配置，每套配置在每个周期中只被第一网络设备广播一次，从而节省了系统资源。
步骤303之前，终端需要先驻留在第二小区中。
一种可能的实现方式中，终端先搜索所有可能的频点，并从中确定出广播系统信息的频点，然后从广播系统信息的频点所对应的小区中选择满足驻留条件的小区。在该实现方式中，终端若确定搜索到第二小区的频点广播系统信息且确定所述第二小区满足驻留条件，则所述终端选择驻留到所述第二小区。
一种可能的实现方式中，终端先获取广播系统信息的频点列表，然后确定所述广播系统信息的频点列表中存在所述第二小区的频点且确定所述第二小区满足驻留条件，则所述终端选择驻留到所述第二小区。
需要说明的是，终端获取广播系统信息的频点列表的方式，本申请实施例并不限定。终端可以通过第一网络设备获取广播系统信息的频点列表，也可以通过其他方式获取广播系统信息的频点列表，在此不再赘述。
步骤303中，终端驻留到所述第二小区之后，在第二小区中侦听第一网络设备广播的第一小区的第一系统信息等消息。
终端在第二小区中获取到第一小区的第一系统信息之后，可以在步骤304中进行小区重选，从而驻留或接入所述第一小区。在本申请实施例中，终端可以小区重选到不广播系统信息但是终端已经获取到其系统信息的小区。
步骤304中，在终端驻留或接入所述第一小区之后，终端还可以侦听所述第一网络设备是否在所述第二小区中广播系统信息变更消息。若所述终端侦听到所述系统信息变更消息，则根据所述系统信息变更消息对所述第一系统信息进行变更。其中，所述系统信息变更消息中所包括的内容可以参考前面的描述，在此不再赘述。
可选的，所述终端驻留到所述第一小区之后，还可以侦听所述第一网络设备是否在所述第二小区中广播的寻呼消息，所述寻呼消息用于寻呼所述终端。若所述终端侦听到所述寻呼消息，所述终端接入到所述第一小区。
需要说明的是，终端在第一小区中侦听寻呼消息时，是根据第二小区提供的参数来计算所述寻呼消息的寻呼时机的。
终端在侦听到所述寻呼消息后，就可以根据所述第一系统信息接入所述第一小区。
终端在接入第一小区的过程中，可能需要确定第一小区的SFN(System Frame Number，系统帧号)，本申请实施例中，将第一小区的SFN称之为第一SFN，将第二小区的SFN称之为第二SFN。
终端确定第一SFN的方式有多种。一种可能的实现方式中，终端若确定所述第一小区与所述第二小区下行同步，则根据所述第二小区的第二SFN确定所述第一SFN。具体的，所述终端若确定所述第一小区与所述第二小区下行同步，则可以确定第一SFN与第二SFN相同，此时所述终端可以直接将第二SFN作为第一SFN。
一种可能的实现方式中，终端接收到的第一系统信息中包括所述第一小区与所述第二小区的下行定时偏差，此时所述终端可以通过第二小区的第二系统帧号SFN以及所述下行定时偏差确定所述第一小区的第一系统帧号SFN。具体的，所述终端将所述下行定时偏差与所述第二SFN之和确定为所述第一SFN。
一种可能的实现方式中，所述终端可以根据接收到的随机接入消息确定所述第一SFN。所述随机接入消息可以为第一小区所对应的网络设备在所述终端接入所述第一小区时，向所述终端发送的包括第一SFN的RAR(Random Access Response，随机接入响应)消息。
结合前面的描述，如图4所示，为本申请实施例提供的一种系统信息广播流程示意图。
图4中，第一小区与第二小区分别属于不同的网络设备，第一小区与第二小区属于相同的网络设备的场景可以参考图4的描述，在此不再赘述。
步骤401：第二网络设备向第一网络设备发送第一小区的第一系统信息。
步骤402：第一网络设备在第二小区广播所述第一系统信息。
步骤403：终端根据所述第一系统信息驻留在所述第一小区。
步骤404：第一网络设备在第二小区中广播寻呼消息，所述寻呼消息用于寻呼所述终端。
步骤405：终端备在第一小区中侦听到所述寻呼消息之后，接入第一小区。
结合前面的描述，如图5所示，为本申请实施例提供的一种系统信息广播流程示意图。
图5中，终端驻留在第一小区，并侦听第二小区上广播的消息。第一小区与第二小区分别属于不同的网络设备，第一小区与第二小区属于相同的网络设备的场景可以参考图5的描述，在此不再赘述。
步骤501：第二网络设备向第一网络设备发送的系统信息变更请求消息。
所述系统信息变更请求消息中包括变更后的第一系统信息。
步骤502：第一网络设备确定变更后的第一系统信息的生效时间。
步骤503：第一网络设备向第二网络设备返回生效时间。
步骤504：第一网络设备在第二小区中广播系统信息变更消息，用于向接收到所述系统信息变更消息的终端指示出所述第一系统信息发生变更。
其中，本申请实施例对步骤503与步骤504的顺序并不限定。
步骤505：第二网络设备在所述生效时间使用所述变更后的第一系统信息。
步骤506：终端对第一系统信息进行变更。
基于相同的技术构思，本申请实施例还提供一种系统信息广播装置，该装置可执行上述方法实施例。
如图6所示，为本申请实施例提供一种系统信息广播装置结构示意图，该装置包括：
处理单元601，用于确定第一小区的第一系统信息；所述第一小区没有广播信道且不进行系统信息的广播；
收发单元602，用于在所述第一网络设备的第二小区上广播所述第一系统信息。
可选的，所述收发单元602还用于：
在所述第二小区中广播所述第二小区的第二系统信息。
可选的，所述第一小区与所述第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备；
所述收发单元602还用于：
接收所述第二网络设备发送的系统信息变更请求消息；所述系统信息变更请求消息中包括变更后的第一系统信息；
确定所述变更后的第一系统信息的生效时间，并将所述生效时间发送给所述第二网络设备，用于指示所述第二网络设备在所述生效时间使用所述变更后的第一系统信息。
可选的，所述收发单元602还用于：
在所述第二小区中广播系统信息变更消息，用于向接收到所述系统信息变更消息的终端指示出所述第一系统信息发生变更。
可选的，所述第一小区与所述第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备；
所述收发单元602还用于：
接收所述第二网络设备发送的系统信息变更请求消息；所述变更请求消息中包括生效时间；
根据所述生效时间在所述第二小区中广播系统信息变更消息，用于向接收到所述系统信息变更消息的终端指示出所述第一系统信息发生变更。
可选的，所述第一系统信息或所述第二系统信息中包括以下任意一种或任意多种信息：
所述第一小区与所述第二小区的下行定时偏差；
广播系统信息的频点列表。
可选的，所述第二小区所使用的频点小于所述第一小区所使用的频点，且所述第二小区采用全向天线进行广播。
基于相同的技术构思，本申请实施例还提供一种系统信息接收装置，该装置可执行上述方法实施例。
如图7所示，为本申请实施例提供一种系统信息接收装置结构示意图，该装置包括：
收发单元701，用于获取第一网络设备在所述第一网络设备的第二小区中广播的第一系统信息；其中，所述第一系统信息为第一小区的系统信息，所述第一小区没有广播信道且不进行系统信息的广播；
处理单元702，用于根据所述第一系统信息驻留或接入所述第一小区。
可选的，所述收发单元701还用于：
获取广播系统信息的频点列表；
所述处理单元702还用于，确定所述广播系统信息的频点列表中存在所述第二小区的频点且确定所述第二小区满足驻留条件；
驻留到所述第二小区。
可选的，所述收发单元701还用于：
侦听所述第一网络设备是否在所述第二小区中广播的系统信息变更消息；
若侦听到所述系统信息变更消息，则根据所述系统信息变更消息对所述第一系统信息进行变更。
可选的，所述收发单元701还用于：
侦听所述第一网络设备是否在所述第二小区中广播的寻呼消息，所述寻呼消息用于寻呼所述终端；
若侦听到所述寻呼消息，接入到所述第一小区。
可选的，所述第一系统信息中包括所述第一小区与所述第二小区的下行定时偏差；
所述处理单元702还用于：
通过第二小区的第二系统帧号SFN以及所述下行定时偏差确定所述第一小区的第一SFN；或者
若确定所述第一小区与所述第二小区下行同步，则根据所述第二小区的第二SFN确定所述第一SFN；或者
根据接收到的随机接入消息确定所述第一SFN。
可选的，所述第一系统信息中包括以下任意一种或任意多种信息：
所述第一小区与所述第二小区的下行定时偏差；
广播系统信息的频点列表。
可选的，所述第二小区所使用的频点小于所述第一小区所使用的频点，且所述第二小区采用全向天线进行广播。
可选的，所述第一小区与所述第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备。
基于相同的技术构思，本申请实施例还提供一种系统信息接收装置，该装置可执行上述方法实施例。
基于相同的技术构思，本申请实施例还提供一种系统信息广播装置，该装置可执行上述方法实施例。
如图8所示，为本申请实施例提供一种系统信息广播装置结构示意图。
参见图8，该装置包括：处理器801、存储器802、收发信机803。
所述存储器802用于保存程序指令并与所述处理器801耦合，所述收发信机803与所述处理器801耦合，用于支持系统信息广播装置与终端进行通信。
处理器801，用于确定第一小区的第一系统信息；所述第一小区没有广播信道且不进行系统信息的广播；
收发信机803，用于在所述第一网络设备的第二小区上广播所述第一系统信息。
关于图8所示的装置的其它内容，可以参考前面的描述，在此不再赘述。
如图9所示，为本申请实施例提供一种系统信息接收装置结构示意图。
参见图9，该装置包括：处理器901、存储器902、收发信机903。
所述存储器902用于保存程序指令并与所述处理器901耦合，所述收发信机903与所述处理器901耦合，用于支持系统信息接收装置与第一网络设备进行通信。
收发信机903，用于获取第一网络设备在所述第一网络设备的第二小区中广播的第一系统信息；其中，所述第一系统信息为第一小区的系统信息，所述第一小区没有广播信道且不进行系统信息的广播；
处理器901，用于根据所述第一系统信息驻留或接入所述第一小区。
关于图9所示的装置的其它内容，可以参考前面的描述，在此不再赘述。
图8和图9中，收发信机可以是有线收发信机，无线收发信机或其组合。有线收发信机例如可以为以太网接口。以太网接口可以是光接口，电接口或其组合。无线收发信机例 如可以为无线局域网收发信机，蜂窝网络收发信机或其组合。处理器可以是中央处理器(英文：central processing unit，缩写：CPU)，网络处理器(英文：network processor，缩写：NP)或者CPU和NP的组合。处理器还可以进一步包括硬件芯片。上述硬件芯片可以是专用集成电路(英文：application-specific integrated circuit，缩写：ASIC)，可编程逻辑器件(英文：programmable logic device，缩写：PLD)或其组合。上述PLD可以是复杂可编程逻辑器件(英文：complex programmable logic device，缩写：CPLD)，现场可编程逻辑门阵列(英文：field-programmable gate array，缩写：FPGA)，通用阵列逻辑(英文：generic array logic,缩写：GAL)或其任意组合。存储器可以包括易失性存储器(英文：volatile memory)，例如随机存取存储器(英文：random-access memory，缩写：RAM)；存储器也可以包括非易失性存储器(英文：non-volatile memory)，例如只读存储器(英文：read-only memory，缩写：ROM)，快闪存储器(英文：flash memory)，硬盘(英文：hard disk drive，缩写：HDD)或固态硬盘(英文：solid-state drive，缩写：SSD)；存储器还可以包括上述种类的存储器的组合。
可选的，图8至图9中还可以包括总线接口，总线接口可以包括任意数量的互联的总线和桥，具体由处理器代表的一个或多个处理器和存储器代表的存储器的各种电路链接在一起。总线接口还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发信机提供用于在传输介质上与各种其他设备通信的单元。处理器负责管理总线架构和通常的处理，存储器可以存储处理器在执行操作时所使用的数据。
本申请是参照根据本申请实施例的方法、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。
尽管已描述了本申请的优选实施例，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申请范围的所有变更和修改。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的范围。这样，倘若本申请的这些修改和变型属于本申请权利要求的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (16)

  1. 一种系统信息广播方法，其特征在于，该方法包括：
    第一网络设备确定第一小区的第一系统信息；所述第一小区没有广播信道且不进行系统信息的广播；
    所述第一网络设备在所述第一网络设备的第二小区上广播所述第一系统信息。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述第一网络设备在所述第二小区中广播所述第二小区的第二系统信息。
  3. 根据权利要求1或2所述的方法，其特征在于，所述第一小区与所述第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备；
    所述第一网络设备确定第一小区的第一系统信息之后，还包括：
    所述第一网络设备接收所述第二网络设备发送的系统信息变更请求消息；所述系统信息变更请求消息中包括变更后的第一系统信息；
    所述第一网络设备确定所述变更后的第一系统信息的生效时间，并将所述生效时间发送给所述第二网络设备，用于指示所述第二网络设备在所述生效时间使用所述变更后的第一系统信息。
  4. 根据权利要求3所述的方法，其特征在于，所述将所述生效时间发送给所述第二网络设备之后，还包括：
    所述第一网络设备在所述第二小区中广播系统信息变更消息，用于向接收到所述系统信息变更消息的终端指示出所述第一系统信息发生变更。
  5. 根据权利要求1或2所述的方法，其特征在于，所述第一小区与所述第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备；
    所述第一网络设备确定第一小区的第一系统信息之后，还包括：
    所述第一网络设备接收所述第二网络设备发送的系统信息变更请求消息；所述变更请求消息中包括生效时间；
    所述第一网络设备根据所述生效时间在所述第二小区中广播系统信息变更消息，用于向接收到所述系统信息变更消息的终端指示出所述第一系统信息发生变更。
  6. 根据权利要求2至5任一所述的方法，其特征在于，所述第一系统信息或所述第二系统信息中包括以下任意一种或任意多种信息：
    所述第一小区与所述第二小区的下行定时偏差；
    广播系统信息的频点列表。
  7. 根据权利要求1至6任一所述的方法，其特征在于，所述第二小区所使用的频点小于所述第一小区所使用的频点，且所述第二小区采用全向天线进行广播。
  8. 一种系统信息接收方法，其特征在于，该方法包括：
    终端获取第一网络设备在所述第一网络设备的第二小区中广播的第一系统信息；其中，所述第一系统信息为第一小区的系统信息，所述第一小区没有广播信道且不进行系统信息的广播；
    所述终端根据所述第一系统信息驻留或接入所述第一小区。
  9. 根据权利要求8所述的方法，其特征在于，所述终端获取第一网络设备在所述第一网络设备的第二小区中广播的第一系统信息之前，还包括：
    所述终端获取广播系统信息的频点列表；
    所述终端确定所述广播系统信息的频点列表中存在所述第二小区的频点且确定所述第二小区满足驻留条件；
    所述终端选择驻留到所述第二小区。
  10. 根据权利要求8或9所述的方法，其特征在于，所述终端根据所述第一系统信息驻留或接入所述第一小区之后，还包括：
    所述终端侦听所述第一网络设备是否在所述第二小区中广播的系统信息变更消息；
    若所述终端侦听到所述系统信息变更消息，则根据所述系统信息变更消息对所述第一系统信息进行变更。
  11. 根据权利要求8至10任一所述的方法，其特征在于，所述第一系统信息中包括所述第一小区与所述第二小区的下行定时偏差；
    所述终端根据所述第一系统信息接入所述第一小区之前，还包括：
    所述终端通过第二小区的第二系统帧号SFN以及所述下行定时偏差确定所述第一小区的第一SFN；或者
    所述终端若确定所述第一小区与所述第二小区下行同步，则根据所述第二小区的第二SFN确定所述第一SFN；或者
    所述终端根据接收到的随机接入消息确定所述第一SFN。
  12. 根据权利要求8至11任一所述的方法，其特征在于，所述第一系统信息中包括以下任意一种或任意多种信息：
    所述第一小区与所述第二小区的下行定时偏差；
    广播系统信息的频点列表。
  13. 根据权利要求8至12任一所述的方法，其特征在于，所述第二小区所使用的频点小于所述第一小区所使用的频点，且所述第二小区采用全向天线进行广播。
  14. 根据权利要求8至13任一所述的方法，其特征在于，所述第一小区与所述第二小区分别属于不同的网络设备，所述第一小区所属的网络设备为第二网络设备。
  15. 一种系统信息广播装置，包括处理器、存储器、收发信机，所述存储器用于保存程序指令并与所述处理器耦合，所述收发信机与所述处理器耦合，用于支持所述系统信息广播装置与终端进行通信；其特征在于，包括：
    所述处理器用于执行所述存储器中保存的程序指令以支持所述系统信息广播装置执行所述权利要求1至7任一所述的系统信息广播方法。
  16. 一种系统信息接收装置，包括处理器、存储器、收发信机，所述存储器用于保存程序指令并与所述处理器耦合，所述收发信机与所述处理器耦合，用于支持所述系统信息接收装置与网络设备进行通信；其特征在于，包括：
    所述处理器用于执行所述存储器中保存的程序指令以支持所述系统信息接收装置执行所述权利要求8至14任一所述的系统信息接收方法。
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CN112954781A (zh) * 2021-02-20 2021-06-11 Oppo广东移动通信有限公司 通信控制方法、装置、电子设备及存储介质

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CN107770836B (zh) 2020-04-28

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