WO2018028602A1 - 一种系统消息的发送方法和设备 - Google Patents

一种系统消息的发送方法和设备 Download PDF

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Publication number
WO2018028602A1
WO2018028602A1 PCT/CN2017/096635 CN2017096635W WO2018028602A1 WO 2018028602 A1 WO2018028602 A1 WO 2018028602A1 CN 2017096635 W CN2017096635 W CN 2017096635W WO 2018028602 A1 WO2018028602 A1 WO 2018028602A1
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WO
WIPO (PCT)
Prior art keywords
system message
network side
side device
message
indication information
Prior art date
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PCT/CN2017/096635
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English (en)
French (fr)
Inventor
耿婷婷
张宏平
刘亚林
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.)
Filing date
Publication date
Priority to BR112019002397A priority Critical patent/BR112019002397A2/pt
Priority to EP17838732.0A priority patent/EP3493598B1/en
Priority to RU2019105434A priority patent/RU2715019C1/ru
Priority to KR1020197006133A priority patent/KR102179852B1/ko
Priority to PL17838732.0T priority patent/PL3493598T3/pl
Priority to AU2017311062A priority patent/AU2017311062B2/en
Priority to JP2019506156A priority patent/JP6818868B2/ja
Priority to ES17838732T priority patent/ES2925043T3/es
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP21191781.0A priority patent/EP3982671A1/en
Priority to MX2019001537A priority patent/MX2019001537A/es
Publication of WO2018028602A1 publication Critical patent/WO2018028602A1/zh
Priority to US16/271,543 priority patent/US11096113B2/en
Priority to US16/528,022 priority patent/US11102706B2/en
Priority to US17/405,825 priority patent/US20210392566A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/16—Discovering, processing access restriction or access information
    • 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
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
    • H04W52/0216—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave using a pre-established activity schedule, e.g. traffic indication frame
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling
    • H04W72/121—Wireless traffic scheduling for groups of terminals or users
    • 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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/14—Access restriction or access information delivery, e.g. discovery data delivery using user query or user detection
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and a device for sending a system message.
  • the UE After the user equipment (UE) performs the cell search, the UE obtains downlink synchronization with the cell, and can obtain the physical cell ID (PCI) of the cell and the time slot of the detected frame. Then, the UE needs to acquire the system information of the cell in order to access the cell and work correctly in the cell.
  • the system message is cell level information, that is, it is valid for all UEs accessing the cell.
  • system messages can be classified into two types, one is (important) important system information (SI), and the network side can broadcast periodically, and such system messages are generally idle UEs must acquire, or The UE needs to use when accessing the cell, such as the Master Information Block (MIB), access information, and prohibition information, and other related information about the cell.
  • SI System Information
  • the other type is system message based on demand (On- Demand SI), the network side broadcasts such a message for a long period of time, or does not broadcast periodically, but is transmitted based on the needs of the UE, and may be sent to the UE through dedicated signaling, for example, with a multimedia broadcast multicast service (Broadcast Multicast) Service, MBMS) related system messages, etc.
  • Broadcast Multicast multimedia broadcast multicast service
  • MBMS multimedia broadcast multicast service
  • the network side only actively broadcasts the important SI.
  • the UE needs to obtain the On-demand SI requirement, it sends a request to the network side and carries the required SI information, and then the network side notifies the UE through the dedicated signaling.
  • On-demand SI the network side broadcasts the On-demand SI according to the requirements of the UE, which can improve the utilization of the common resources and reduce the power consumption of the UE side, but when there are multiple UEs having the same On-demand SI demand, if When the network side sends the dedicated signaling to the multiple UEs to carry the required On-demand SI, it will occupy more network time-frequency resources, resulting in waste of network time-frequency resources.
  • the embodiment of the invention provides a method and a device for sending a system message, which can solve the problem of waste of network time-frequency resources caused by using multiple dedicated signaling system messages.
  • the first aspect provides a method for sending a system message, where the network side device receives a system message request sent by the user equipment UE, and the system message request is used to request the network side device to obtain the first system message; the network side device sends the system message to the UE.
  • the group identifier, or the network side device sends the group identifier and the time-frequency resource of the first system message to the UE; the network side device sends the first system message to the UE.
  • the network side device may be a base station. When the UE receives the group ID (Group ID) or the group ID and the time-frequency resource sent by the base station, the UE may descramble the time-frequency resource by using the group ID, and the base station may request the multicast mode.
  • the UE of the first system message sends the first system message.
  • the base station does not need to send the first system message to each UE through the dedicated signaling, and can be sent in the multicast mode, and the first system message is sent through the dedicated signaling.
  • Multicast mode saves network time-frequency resources.
  • the method further includes: the network side device sending the first broadcast message, where the first broadcast message includes indication information of the system message sent according to the requirement, and the indication information includes indication information of the first system message.
  • the base station may periodically send the first broadcast message, so that the UE that newly enters the cell covered by the base station receives the indication information of the On-demand SI in time, and then requests the base station to acquire when any On-demand SI needs to be acquired.
  • the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label (VT) of the system message, or the sequence number and label indicating the information including the system message, and at least two system messages.
  • VT sequence number and a label
  • the label is used by the UE to determine whether the content of the system message changes, that is, the UE may compare the VT in the system message sent by the base station with the VT of the system message saved by the UE to determine whether to update the system message. Content.
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to each bit needs to be obtained by the UE by sending a system message request.
  • each bit of the bitmap corresponds to a value of 0011, where 0 indicates that the corresponding SI does not need to be obtained from the base station through a system message request, and the corresponding SI needs the UE to acquire from the base station through a system message request.
  • the system message request includes the sequence number of the first system message; or the system message request includes the sequence number and label of the first system message.
  • the base station may compare the VT in the received system message request with the VT of the first system message saved by the base station side to determine whether to send the first system message to the UE.
  • the network side device when the system message request includes the sequence number and the label of the first system message, the network side device sends the group identifier to the UE, or the network side device sends the group identifier and the time frequency of the first system message to the UE.
  • the method further includes: determining, by the network side device, whether the label of the first system message sent by the UE is the same as the label of the first system message saved by the network side device; if the determination is different, the network side device determines the content of the first system message. updated. In this way, network resources can be saved, so that system messages are not sent repeatedly.
  • the method further includes: if the determination is the same, the network side device sends an acknowledgement ACK message to the UE, to indicate that the UE continues to use the first system message saved by the UE.
  • the network side device sends the group identifier to the UE, where the network side device pre-configures the correspondence between the group identifier and the time-frequency resource, and the network-side device sends the proprietary message to the UE that requests the first system message.
  • the private signaling includes a group identifier, to indicate that the UE obtains the time-frequency resource corresponding to the group identifier according to the corresponding relationship, and then receives the first system message;
  • the time-frequency resource that the network side device sends the group identifier and the first system message to the UE includes: The network side device sends the dedicated signaling to the UE that requests the first system message, where the dedicated signaling includes the group identifier and the time-frequency resource of the first system message, to indicate that the UE receives the first system message by using the group identifier and the time-frequency resource.
  • the network side device sends the dedicated signaling to the UE that requests the first system message, the dedicated signaling includes the group identifier, and sends a second broadcast message to the UE, where the second broadcast message includes the time-frequency resource of the first system message,
  • the UE is instructed to receive the first system message by using the group identifier and the time-frequency resource. That is, the base station can send the group ID to the UE through the dedicated signaling, and send the time-frequency resource to the UE through the dedicated signaling or the broadcast mode, or the time-frequency resource UE can obtain the corresponding relationship between the group ID and the time-frequency resource. .
  • each system message sent based on the requirement corresponds to a group identifier, or at least two system messages sent according to the requirement correspond to the same public group identifier;
  • the first system message includes the sequence number of the first system message. Or including a sequence number and a label of the first system message, or a sequence number and a label including the first system message, and a common label of the at least two system messages;
  • the first system message may further include a valid time of the first system message, a valid time And configured to instruct the UE to re-acquire the content of the first system message from the network side device when the first system message is obtained.
  • the method further includes: the network side device sends a paging message to the UE according to the paging period, where the paging message is used to instruct the UE to obtain the last updated first system message, the paging message according to the paging message.
  • the network side device sends a paging message to the UE according to the paging period, where the paging message is used to instruct the UE to obtain the last updated first system message, the paging message according to the paging message.
  • At least one of the content of the first system message that the network side device last updated, the label of the first system message, and the time-frequency resource of the first system message; wherein, if the first system message corresponds to the public label, the paging message Also includes public tags.
  • the corresponding relationship between the group ID and the paging period can be configured in the UE, and the UE wakes up when the paging period arrives and receives the paging message sent by the base station to update the first system message or the first system message according to the paging message.
  • Time-frequency resources can be configured in the UE, and the UE wakes up when the paging period arrives and receives the paging message sent by the base station to update the first system message or the first system message according to the paging message.
  • the second aspect provides a method for sending a system message, including: the user equipment UE sends a system request message to the network side device, the system request message is used to request the network side device to acquire the first system message; and the UE receives the network side device.
  • the method before the UE sends the system message request, the method further includes: the UE receiving the first broadcast message sent by the network side device, where the first broadcast message includes indication information of the system message sent according to the requirement, where the indication information includes The indication information of the first system message.
  • the indication information includes the sequence number of the system message, or the indication information includes the sequence of the system message.
  • the number and the label, or the indication information include a sequence number and a label of the system message, and a common label of the at least two system messages, wherein the label is used by the UE to determine whether the content of the system message changes.
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to each bit needs to be obtained by the UE by sending a system message request.
  • the system message request includes the sequence number of the first system message, or the system message request includes the sequence number and label of the first system message.
  • the UE receiving the group identifier sent by the network side device includes: the UE receiving the dedicated signaling sent by the network side device, the proprietary signaling includes the group identifier, and the UE according to the group identifier and the acquired first system Receiving, by the time-frequency resource of the message, the first system message sent by the network side device, the UE obtains the time-frequency resource of the first system message according to the correspondence between the group identifier and the pre-configured time-frequency resource; and the time and frequency of the UE according to the first system message The resource receives the first system message sent by the network side device.
  • the UE receives the group identifier sent by the network side device and the time-frequency resource of the first system message, where the UE receives the dedicated signaling sent by the network side device, and the proprietary signaling includes the group identifier and the first The time-frequency resource of the system message; or the UE receives the dedicated signaling sent by the network side device, the proprietary signaling includes the group identifier, and receives the second broadcast message sent by the network side device, where the second broadcast message includes the first system message. Time-frequency resources.
  • the method when the system request message includes the sequence number and the label of the first system message, the method further includes: the UE receiving the acknowledgement message sent by the network side device, to indicate that the UE continues to use the first system message saved by the UE.
  • each system message sent based on the requirement corresponds to a group identifier, or at least two system messages sent according to the requirement correspond to the same public group identifier;
  • the first system message includes the sequence number of the first system message. Or including a sequence number and a label of the first system message, or a sequence number and a label including the first system message, and a common label of the at least two system messages;
  • the first system message may further include a valid time of the first system message, a valid time And configured to instruct the UE to re-acquire the content of the first system message from the network side device when the first system message is obtained.
  • the method further includes: receiving, by the UE, a paging message sent by the network side device when the paging period arrives, where the paging message includes content of the first system message that the network side device last updated, and the first system At least one of a label of the message and a time-frequency resource of the first system message; the UE acquires the first system message that was last updated according to the paging message.
  • the third aspect provides a method for sending a system message, where: the network side device receives a system message request sent by the user equipment UE, and the system message request is used to request the network side device to obtain the first system message; the network side device broadcasts the first system information.
  • the base station does not send the SI to the UE through the dedicated signaling, but sends the SI to the UE in a broadcast manner, which can save network resources.
  • the method further includes: the network side device sends a broadcast message, where the broadcast message includes indication information of the system message sent according to the requirement, and the indication information includes indication information of the first system message.
  • the base station may periodically send a broadcast message, so that the UE that newly enters the cell coverage of the base station receives the indication information of the On-demand SI in time.
  • the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common label of the at least two system messages, where
  • the tag is used by the UE to determine if the content of the system message has changed. For example, the UE compares the VT of the system message received from the base station with the VT of the system message currently saved by the UE to determine whether to update the content of the system message.
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to each bit needs to be obtained by the UE by sending a system message request.
  • the value of each bit of the bitmap is 0011, where 0 indicates that the corresponding system message does not need to be actively requested by the UE from the base station, and 1 indicates that the corresponding system message needs to be obtained by the UE from the base station.
  • the broadcast message further includes a time-frequency resource or a sending occasion of the system message, and is used to indicate that the UE acquires the system message on the time-frequency resource or the sending opportunity; or the broadcast message further includes the monitoring duration of the system message, Instructing the UE to save the system message if it receives the system message within the monitoring time period, and if the system message is not received, the UE is enabled
  • a broadcast system message is requested to the network side device.
  • the monitoring duration can be implemented by a timer. The monitoring duration is set because the other UEs may have requested the system to obtain the system message. If the UE that starts the timer receives the system message within the monitoring time, it does not need to send the system message request to the base station.
  • the system message request includes a sequence number of the first system message, or the system message request includes a sequence number and a label of the first system message; wherein, when the system message request includes the sequence number and label of the first system message, Before the network side device broadcasts the first system message, the method further includes: determining, by the network side device, whether the label of the first system message sent by the UE is the same as the label of the first system message saved by the network side device; if the determination is different, the network side The device determines that the content of the first system message has been updated. In this way, in the case of the same VT, the base station does not need to broadcast system messages to the UE, and further saves network resources.
  • the method further includes: if the determination is the same, the network side device sends an acknowledgement message to the UE, to indicate that the UE continues to use the first system message saved by the UE.
  • the first system message includes a sequence number of the first system message, or a sequence number and a label including the first system message, or a sequence number and a label including the first system message, and a common of at least two system messages. label.
  • the UE may determine, according to the VT in the received first system message, whether the received first system message is the same as the VT of the first system message currently saved by the UE, to determine whether to update the first system message currently saved by the UE.
  • the method before the network side device broadcasts the first system message, the method further includes: the network side device scrambling the first system message by using the wireless network temporary identifier RNTI.
  • the first system message is On-demand SI, and the corresponding scrambling information RNTI can be different from the scrambling information corresponding to the Important SI.
  • the fourth aspect provides a method for sending a system message, that is, the user equipment UE sends a system message request to the network side device, and the system message request is used to request the network side device to acquire the first system message; the UE receives the network side device and sends the The first broadcast message, the first broadcast message includes a first system message.
  • the method further includes: receiving, by the UE, a second broadcast message sent by the network side device, where the second broadcast message includes indication information that is sent by the system message according to the requirement, and the indication information includes the indication information of the first system message.
  • the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common label of the at least two system messages, where The tag is used by the UE to determine if the content of the system message has changed.
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to each bit is required to be obtained by the UE by sending a system message request.
  • the second broadcast message further includes a time-frequency resource or a sending occasion of the system message
  • the receiving, by the UE, the first broadcast message sent by the network side device includes: receiving, by the UE, the network side device according to the time-frequency resource or the sending occasion The first broadcast message.
  • the second broadcast message further includes a monitoring duration of the system message; before the UE sends the system message request to the network side device, the method further includes: when the UE determines that the first system message needs to be acquired, the UE starts timing The timer duration is the monitoring duration of the first system message; the UE determines whether the first system message is received within the monitoring duration; if not, the UE determines that the system message request needs to be sent to the network side device.
  • the method further includes: if the determination is yes, the UE saves the first system message and stops the timer timing.
  • the first broadcast message further includes a sequence number and a label of the first system message
  • the method further includes: after receiving the first broadcast message, the UE receives the third broadcast message sent by the network side device, and third.
  • the broadcast message includes a sequence number and a label of the last update of the first system message; the UE determines whether the label of the first system message in the saved first broadcast message and the label of the third system message that is updated last time in the third broadcast message are the same; Different, the UE updates the content of the first system message according to the third broadcast message, and saves the label of the first system message in the third broadcast message.
  • the fifth aspect provides a network side device, including: a receiving unit, configured to receive a system message request sent by the user equipment UE, where the system message request is used to request the network side device to obtain the first system message, and the sending unit is configured to send The UE sends the group identifier, or the network side device sends the group identifier and the time-frequency resource of the first system message to the UE, and the sending unit is further configured to send the first system message to the UE.
  • the sending unit is further configured to: send a first broadcast message, where the first broadcast message includes indication information of the system message sent according to the requirement, where the indication information includes indication information of the first system message.
  • the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common label of the at least two system messages, where The tag is used by the UE to determine if the content of the system message has changed.
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to each bit needs to be obtained by the UE by sending a system message request.
  • the system message request includes the sequence number of the first system message; or the system message request includes the sequence number and label of the first system message.
  • the method when the system message request includes the sequence number and the label of the first system message, the method further includes: a determining unit, configured to determine a label of the first system message sent by the UE and the first system saved by the network side device Whether the labels of the messages are the same; if the determination is different, it is determined that the content of the first system message has been updated.
  • a determining unit configured to determine a label of the first system message sent by the UE and the first system saved by the network side device Whether the labels of the messages are the same; if the determination is different, it is determined that the content of the first system message has been updated.
  • the sending unit is further configured to: if the determination is the same, send an acknowledgement ACK message to the UE, to indicate that the UE continues to use the first system message saved by the UE.
  • the sending unit is configured to: pre-configure a correspondence between the group identifier and the time-frequency resource to the UE, and the network-side device sends the dedicated signaling to the UE that requests the first system message, where the dedicated signaling includes the group. And the sending unit is configured to send the first system message to the UE requesting the first system message, where the sending unit is configured to send the first system message to the UE that requests the first system message, where the dedicated signaling includes the group identifier.
  • the sending unit is configured to send the dedicated signaling to the UE that requests the first system message, where the proprietary signaling includes The group identifies and sends a second broadcast message to the UE, where the second broadcast message includes a time-frequency resource of the first system message, to indicate that the UE receives the first system message by using the group identifier and the time-frequency resource.
  • each system message sent based on the requirement corresponds to a group identifier, or at least two system messages sent according to the requirement correspond to the same public group identifier;
  • the first system message includes the sequence number of the first system message. Or including a sequence number and a label of the first system message, or a sequence number and a label including the first system message, and a common label of the at least two system messages;
  • the first system message may further include a valid time of the first system message, a valid time And configured to instruct the UE to re-acquire the content of the first system message from the network side device when the first system message is obtained.
  • the sending unit is further configured to: send a paging message to the UE according to the paging period, where the paging message is used to instruct the UE to obtain the last updated first system message according to the paging message, where the paging message includes At least one of the content of the first system message that was last updated by the network side device, the label of the first system message, and the time-frequency resource of the first system message; wherein, if the first system message corresponds to the public label, the paging message is further Includes public tags.
  • the sixth aspect provides a user equipment (UE), including: a sending unit, configured to send a system request message to the network side device, where the system request message is used to request the network side device to acquire the first system message, and the receiving unit is configured to receive the network.
  • the group identifier sent by the side device, or the UE receives the group identifier sent by the network side device and the time-frequency resource of the first system message; the receiving unit is further configured to receive the network side according to the group identifier and the acquired time-frequency resource of the first system message.
  • the first system message sent by the device including: a sending unit, configured to send a system request message to the network side device, where the system request message is used to request the network side device to acquire the first system message, and the receiving unit is configured to receive the network.
  • the group identifier sent by the side device or the UE receives the group identifier sent by the network side device and the time-frequency resource of the first system message; the receiving unit is further configured to receive the network side according to the group
  • the receiving unit is further configured to: receive a first broadcast message sent by the network side device, where the first broadcast message includes indication information of the system message sent according to the requirement, where the indication information includes indication information of the first system message .
  • the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common label of the at least two system messages, where The tag is used by the UE to determine if the content of the system message has changed.
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to each bit needs to be obtained by the UE by sending a system message request.
  • the system message request includes the sequence number of the first system message, or the system message request includes the sequence number and label of the first system message.
  • the receiving unit is configured to: receive the dedicated signaling sent by the network side device, the dedicated signaling includes the group identifier, or further include an acquiring unit, configured to use the group identifier and the pre-configured time-frequency resource The corresponding relationship obtains the time-frequency resource of the first system message; the receiving unit is configured to: obtain the time-frequency resource of the first system message according to the correspondence between the group identifier and the pre-configured time-frequency resource.
  • the receiving unit is configured to: receive the dedicated signaling sent by the network side device, the dedicated signaling includes the group identifier and the time-frequency resource of the first system message; or the receiving unit is configured to: receive the network side The proprietary signaling sent by the device includes the group identifier, and receives the second broadcast message sent by the network side device, where the second broadcast message includes the time-frequency resource of the first system message.
  • the receiving unit when the system request message includes the sequence number and the label of the first system message, the receiving unit is further configured to: receive an acknowledgement message sent by the network side device, to indicate that the UE continues to use the first system message saved by the UE. .
  • each system message sent based on the requirement corresponds to a group identifier, or at least two system messages sent according to the requirement correspond to the same public group identifier;
  • the first system message includes the sequence number of the first system message. Or including a sequence number and a label of the first system message, or a sequence number and a label including the first system message, and a common label of the at least two system messages;
  • the first system message may further include a valid time of the first system message, a valid time And configured to instruct the UE to re-acquire the content of the first system message from the network side device when the first system message is obtained.
  • the receiving unit is further configured to: when the paging cycle arrives, receive a paging message sent by the network side device, where the paging message includes content of the first system message that the network side device last updated, first At least one of a label of the system message and a time-frequency resource of the first system message; and an obtaining unit, configured to acquire the first system message that was last updated according to the paging message.
  • the seventh aspect provides a network side device, including: a receiving unit, configured to receive a system message request sent by the user equipment UE, where the system message request is used to request the network side device to obtain the first system message; and the broadcasting unit is configured to broadcast First system message.
  • the broadcast unit is further configured to send a broadcast message, where the broadcast message includes indication information of the system message sent according to the requirement, and the indication information includes indication information of the first system message.
  • the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common label of the at least two system messages, where The tag is used by the UE to determine if the content of the system message has changed.
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to each bit needs to be obtained by the UE by sending a system message request.
  • the broadcast message further includes a time-frequency resource or a sending occasion of the system message, and is used to indicate that the UE acquires the system message at the time-frequency resource or the sending time; or the broadcast message further includes the monitoring time of the system message, and is used for The UE is instructed to save the system message if it receives the system message within the monitoring time period, and if the system message is not received, the UE is requested to request the broadcast system message from the network side device.
  • the system message request includes a sequence number of the first system message, or the system message request includes a sequence number and a label of the first system message; wherein, when the system message request includes the sequence number and label of the first system message,
  • the method further includes: determining, determining, by the UE, whether the label of the first system message sent by the UE is the same as the label of the first system message saved by the network side device; if the determination is different, determining that the content of the first system message is updated.
  • the sending unit is configured to send an acknowledgement message to the UE to indicate that the UE continues to use the first system message saved by the UE, if the same is determined.
  • the first system message includes a sequence number of the first system message, or a sequence number and a label including the first system message, or a sequence number and a label including the first system message, and a common of at least two system messages. label.
  • a scrambling unit is further included for scrambling the first system message using the wireless network temporary identity RNTI.
  • the eighth aspect provides a user equipment (UE), comprising: a sending unit, configured to send a system message request to the network side device, the system message request is used to request the network side device to acquire the first system message, and the receiving unit is configured to receive the network.
  • the first broadcast message sent by the side device where the first broadcast message includes the first system message.
  • the receiving unit is further configured to: receive a second broadcast message sent by the network side device, where the second broadcast message includes indication information of the system message sent according to the requirement, where the indication information includes indication information of the first system message .
  • the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common label of the at least two system messages, where The tag is used by the UE to determine if the content of the system message has changed.
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to each bit needs to be obtained by the UE by sending a system message request.
  • the second broadcast message further includes a time-frequency resource or a transmission opportunity of the system message
  • the receiving unit is configured to: receive the first broadcast message sent by the network side device according to the time-frequency resource or the sending occasion.
  • the second broadcast message further includes a monitoring duration of the system message; before the UE sends the system message request to the network side device, the second broadcast message further includes a timing unit, when the UE determines that the first system message needs to be acquired, The timer is started, and the timer duration is the monitoring duration of the first system message.
  • the determining unit is configured to determine whether the first system message is received within the monitoring duration. If the determination is no, the system message request is sent to the network side device.
  • the timing unit is further configured to: if determined to be, save the first system message and stop the timer timing.
  • the first broadcast message further includes a sequence number and a label of the first system message
  • the receiving unit is further configured to: after receiving the first broadcast message, receive the third broadcast message sent by the network side device, where The third broadcast message includes a sequence number and a label of the last update of the first system message; and a determining unit, configured to determine a label of the first system message in the saved first broadcast message and a last update of the first system message in the third broadcast message Whether the labels are the same; if the determination is different, the content of the first system message is updated according to the third broadcast message, and the label of the first system message in the third broadcast message is saved.
  • the ninth aspect provides a network side device, including: a receiver, configured to receive a system message request sent by the user equipment UE, where the system message request is used to request the network side device to obtain the first system message; and the transmitter is configured to receive A system message request sent by the user equipment UE, the system message request is used to request the network side device to obtain the first system message, and the transmitter is further configured to send the first system message to the UE.
  • the transmitter is further configured to send a first broadcast message, where the first broadcast message includes indication information of the system message sent according to the requirement, where the indication information includes indication information of the first system message, where the indication information includes The sequence number of the system message, or the indication information includes the sequence number and label of the system message, or the indication information includes the sequence number and label of the system message, and a common label of the at least two system messages, wherein the label is used by the UE to determine whether the content of the system message changes.
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to each bit needs to be obtained by the UE by sending a system message request.
  • the transmitter is configured to pre-configure the correspondence between the group identifier and the time-frequency resource to the UE, and the network-side device sends the dedicated signaling to the UE that requests the first system message, where the proprietary signaling includes the group identifier.
  • the transmitter is configured to send the dedicated signaling to the UE requesting the first system message, where the proprietary signaling includes the group identifier and the first a time-frequency resource of the system message, to indicate that the UE receives the first system message by using the group identifier and the time-frequency resource; or the transmitter is configured to send the dedicated signaling to the UE that requests the first system message, where the proprietary signaling includes the group identifier, and Sending a second broadcast message to the UE, where the second broadcast message includes a time-frequency resource of the first system message, to indicate that the UE receives the first system message by using the group identifier and the time-frequency resource.
  • each system message sent based on the requirement corresponds to a group identifier, or at least two system messages sent according to the requirement correspond to the same public group identifier;
  • the first system message includes the sequence number of the first system message.
  • the first system message includes a sequence number and a label of the first system message, or the first system message includes a sequence number and a label of the first system message, and a common label of the at least two system messages;
  • the first system message may further include the first The effective time of the system message is used to indicate that the UE re-acquires the content of the first system message from the network side device when the first system message reaches the valid time.
  • a user equipment including: a transmitter, configured to send a system request message to a network side device, where the system request message is used to request the network side device to acquire the first system message, and the receiver is configured to receive the network.
  • the group identifier sent by the side device, or the UE receives the group identifier sent by the network side device and the time-frequency resource of the first system message; the receiver is further configured to receive the network side according to the group identifier and the acquired time-frequency resource of the first system message.
  • the first system message sent by the device including: a transmitter, configured to send a system request message to a network side device, where the system request message is used to request the network side device to acquire the first system message, and the receiver is configured to receive the network.
  • the group identifier sent by the side device or the UE receives the group identifier sent by the network side device and the time-frequency resource of the first system message; the receiver is further configured to receive the network side according to the group identifier and the acquired time-frequency resource of
  • the receiver is further configured to receive a first broadcast message sent by the network side device, where the first broadcast message includes indication information of the system message sent according to the requirement; the indication information includes indication information of the first system message; The indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common label of the at least two system messages, where the label is used by the UE to determine the system. Whether the content of the message changes; or the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to each bit needs to be obtained by the UE by sending a system message request.
  • the receiver is configured to receive the dedicated signaling sent by the network side device, the proprietary signaling includes the group identifier, or further includes a processor, configured to perform the correspondence according to the group identifier and the pre-configured time-frequency resource. The relationship obtains the time-frequency resource of the first system message; the receiver is configured to receive the first system message sent by the network side device according to the time-frequency resource of the first system message.
  • the receiver is configured to receive the dedicated signaling sent by the network side device, where the dedicated signaling includes the group identifier and the time-frequency resource of the first system message; or the receiver is configured to receive the special There is signaling, the proprietary signaling includes a group identifier, and receives a second broadcast message sent by the network side device, where the second broadcast message includes a time-frequency resource of the first system message.
  • each system message sent based on the requirement corresponds to a group identifier, or at least two system messages sent according to the requirement correspond to the same public group identifier;
  • the first system message includes the sequence number of the first system message.
  • the first system message includes a sequence number and a label of the first system message, or the first system message includes a sequence number and a label of the first system message, and a common label of the at least two system messages;
  • the first system message may further include the first The effective time of the system message is used to indicate that the UE re-acquires the content of the first system message from the network side device when the first system message reaches the valid time.
  • the eleventh aspect provides a network side device, including: a receiver, configured to receive a system message request sent by the user equipment UE, where the system message request is used to request the network side device to obtain the first system message; and the transmitter is configured to: Broadcast the first system message.
  • the transmitter is configured to send a broadcast message, where the broadcast message includes indication information of the system message sent according to the requirement, the indication information includes indication information of the first system message, where the indication information includes a sequence number of the system message, Or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common label of the at least two system messages, wherein the label is used by the UE to determine whether the content of the system message changes; or the indication information includes Bitmap, the value of each bit in the bitmap is used to indicate that the system message corresponding to each bit needs to be obtained by the UE by sending a system message request.
  • the broadcast message further includes a time-frequency resource or a sending occasion of the system message, and is used to indicate that the UE acquires the system message at the time-frequency resource or the sending time; or the broadcast message further includes the monitoring time of the system message, and is used for The UE is instructed to save the system message if it receives the system message within the monitoring time period, and if the system message is not received, the UE is requested to request the broadcast system message from the network side device.
  • a user equipment UE including a transmitter, configured to send a system message request to a network side device, where the system message request is used to request the network side device to acquire the first system message, and the receiver is configured to receive the network.
  • the receiver is further configured to receive a second broadcast message sent by the network side device, where the second broadcast message includes indication information of the system message sent according to the requirement, where the indication information includes indication information of the first system message;
  • the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common label of the at least two system messages, where the label is used by the UE to determine the system.
  • the indication information includes a bitmap, and the values of the respective bits in the bitmap are used to indicate each
  • the system message corresponding to the bits needs to be obtained by the UE by sending a system message request.
  • the second broadcast message further includes a time-frequency resource or a transmission timing of the system message, and the receiver is configured to receive the first one sent by the network side device according to the time-frequency resource or the sending opportunity. Broadcast message.
  • the second broadcast message further includes a monitoring duration of the system message, and further includes a processor, configured to start a timer when the UE determines that the first system message needs to be acquired, and the timer duration is the first system message.
  • the monitoring duration is determined; whether the first system message is received within the monitoring duration; if not, it is determined that the system message request needs to be sent to the network side device.
  • a thirteenth aspect a communication system is provided, comprising the network side device as provided in the ninth aspect and the UE provided in the tenth aspect.
  • a communication system comprising the network side device as provided in the eleventh aspect and the UE provided in the twelfth aspect.
  • a communication system comprising the network side device as provided in the ninth aspect.
  • a communication system comprising the network side device as provided in the eleventh aspect.
  • a system chip includes an input/output interface, at least one processor, a memory, and a bus.
  • the input/output interface is used by the device to receive a system message request sent by the user equipment UE, and the system message is requested to be used in the network.
  • the side device requests to obtain the first system message;
  • the input/output interface is further configured to send the group identifier to the UE, or the network side device sends the group identifier and the time-frequency resource of the first system message to the UE;
  • the input/output interface is further configured to send the A system message.
  • a system chip includes an input/output interface, at least one processor, a memory, and a bus.
  • the input/output interface is configured to send a system request message to the network side device, and the system request message is used to the network side device. Requesting to obtain the first system message; the input/output interface is further configured to receive the group identifier sent by the network side device, or the UE receives the group identifier sent by the network side device and the time-frequency resource of the first system message; the input/output interface is further used according to the group The time-frequency resource that identifies and obtains the first system message receives the first system message sent by the network side device.
  • a system chip includes an input/output interface, at least one processor, a memory, and a bus.
  • the input/output interface is configured to receive a system message request sent by the user equipment UE, and the system message request is used to the network side.
  • the device requests to obtain the first system message; the input and output interface is also used to broadcast the first system message.
  • a system chip includes an input/output interface, at least one processor, a memory, and a bus.
  • the input/output interface is configured to send a system message request to the network side device, and the system message request is used to the network side device.
  • the first broadcast message is sent by the network side device, where the first broadcast message includes the first system message.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions used by the network side device, including a program designed to execute the first aspect.
  • the embodiment of the present invention provides a computer storage medium for storing computer software instructions used by the UE, which includes a program designed to execute the third aspect.
  • an embodiment of the present invention provides a computer storage medium for storing computer software instructions used by the network side device, which includes a program designed to execute the fifth aspect.
  • the embodiment of the present invention provides a computer storage medium for storing computer software instructions used by the UE, which includes a program designed to execute the seventh aspect.
  • an embodiment of the present invention provides a method for sending a system message, including:
  • the user equipment sends a system message request to the network side device, where the system message request is used to request the network side device to acquire the first system message; the user equipment receives the first system message broadcast by the network side device.
  • the user equipment is configured to receive the broadcast message sent by the network side device, where the broadcast message includes indication information of the system message sent according to the requirement, where the indication information includes indication information of the first system message;
  • the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common label of the at least two system messages, where the The tag is used by the user equipment to determine whether the content of the system message changes; or the indication information includes a bitmap, where The value of each bit in the bitmap is used to indicate whether the system message corresponding to the respective bit needs the user equipment to obtain by sending a system message request.
  • the user equipment is configured to receive the broadcast message sent by the network side device, where the broadcast message includes indication information of the system message sent according to the requirement, where the indication information includes indication information of the first system message;
  • the indication information is used to indicate whether the user equipment needs to send a system message request to obtain a system message.
  • the indication information includes a bitmap, where the bitmap includes at least one bit, and the value of each bit in the bitmap indicates whether the system message corresponding to each bit needs the user equipment to pass the transmission system. The message request was obtained.
  • the broadcast message further includes a time-frequency resource or a sending occasion of the system message.
  • the receiving, by the user equipment, the first system message broadcast by the network side device includes: the user equipment according to the time-frequency resource or The sending opportunity receives the first system message broadcast by the network side device.
  • a feasible design is that the broadcast message further includes a monitoring duration of the system message, and the method further includes: if the user equipment does not receive the first system message within the monitoring duration, the user equipment sends the The network side device sends the system message request.
  • the system message request includes a bitmap, and one bit in the bitmap indicates that the first system message needs to be requested.
  • a feasible design is that, after the user equipment sends the system message request, the user equipment receives the first time-frequency resource or the transmission time of the first time-frequency resource or the transmission time of the first system message. system information.
  • One of the feasible designs is that the first system message includes an effective time of the first system message.
  • a feasible design is that, before the user equipment UE sends the system message request to the network side device, the method further includes: the UE reading the latest indication information, to determine whether the system message needs to be sent, and obtaining the first system. Message.
  • a feasible design is that, before the user equipment sends the system message request to the network side device, the method further includes: the user equipment does not receive the time-frequency resource or the sending opportunity of the first system message received next time. The first system message. The user equipment first determines whether the first system message is received on the time-frequency resource of the first system message received or the transmission opportunity.
  • the embodiment of the present invention provides a method for sending a system message, including: receiving, by a network side device, a system message request sent by a user equipment, where the system message request is used to request the network side device to obtain the first system. a message; the network side device broadcasts the first system message.
  • a feasible design is that the network side device sends a broadcast message, where the broadcast message includes indication information of the system message sent according to the requirement, where the indication information includes indication information of the first system message, where the indication information includes The sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common label of at least two system messages, wherein the label is used by the UE to determine Whether the content of the system message changes; or the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate whether the system message corresponding to the respective bit needs to be obtained by the UE by sending a system message request.
  • a possible design is that the network side device sends a broadcast message, where the broadcast message includes indication information of the system message that is sent according to the requirement, the indication information includes indication information of the first system message, and the indication information includes the first The indication information of a system message; the indication information is used to indicate whether the user equipment needs to send a system message request to obtain a system message.
  • the indication information includes a bitmap, where the bitmap includes at least one bit, and the value of each bit in the bitmap indicates whether the system message corresponding to each bit needs the user equipment to pass the transmission system. The message request was obtained.
  • a feasible design is that the broadcast message includes a time-frequency resource or a sending occasion of the system message, and is used to indicate that the user equipment acquires the system message at the time-frequency resource or the sending opportunity.
  • a feasible design is that the broadcast message includes a monitoring duration of the system message
  • the user equipment does not receive the system message within the monitoring duration, and the user equipment requests the network side device to broadcast the system message.
  • a feasible design is that the network side device selects the latest time-frequency resource or the sending opportunity to broadcast the first system message in the broadcast periodic time-frequency resource or the sending time.
  • One of the feasible designs is that the first system message includes an effective time of the first system message.
  • an embodiment of the present invention provides a user equipment, including: a memory, a transceiver, and at least one processor, where the memory stores an instruction, the memory, the transceiver, and the at least one processor pass the line Interconnecting, the transceiver is operative to perform an operation of transmitting and receiving a message at the user equipment in the method of any one of the twenty-fifth aspects; the at least one processor invoking the instruction stored in the memory, executing the twentieth The processing operation performed by the user equipment in the method of any of the five aspects.
  • an embodiment of the present invention provides a network side device, including: a memory, a transceiver, and at least one processor, where the memory stores an instruction, the memory, the transceiver, and the at least one processor pass a line interconnecting, the transceiver is configured to perform the operation of transmitting and receiving a message at the network side device in the method of any one of the twenty-sixth aspects; the at least one processor calls the instruction stored in the memory, and executes the second The processing operation performed by the network side device in the method of any of the sixteenth aspects.
  • an embodiment of the present invention provides a chip system, which is applied to a user equipment, including: the chip system includes at least one processor, a memory, and an interface circuit, where the interface circuit is responsible for information about the chip system and the outside world. Interacting, the memory, the interface circuit, and the at least one processor are interconnected by a line, the at least one memory storing instructions; the instructions being executed by the at least one processor to perform any of the twenty-fifth aspect The method of operation of the user device.
  • the embodiment of the present invention provides a chip system, which is applied to a network side device, and includes: the chip system includes at least one processor, a memory, and an interface circuit, where the interface circuit is responsible for information about the chip system and the outside world. Interacting, the memory, the interface circuit and the at least one processor are interconnected by a line, the at least one memory storing instructions; the instructions being executed by the at least one processor to perform any of the twenty-sixth aspect The operation of the network side device in the method.
  • an embodiment of the present invention provides a computer readable storage medium, which is applied to a user equipment, where the computer readable storage medium stores instructions, when the instruction is run on the computing device, to perform, for example, The operation of the user equipment in the method of any of the twenty-fifth aspects.
  • an embodiment of the present invention provides a computer readable storage medium, which is applied to a network side device, where the computer readable storage medium stores an instruction, when the instruction is run on the computing device, to perform The operation of the network side device in the method of any of the twenty-sixth aspects.
  • the embodiment of the present invention provides a communication system, including: a network side device, and or a user equipment; wherein the network side device is the network side device of any one of the twenty-eighth aspects, The user equipment is the user equipment of any of the twenty-seventh aspects.
  • an embodiment of the present invention provides a computer program product, which is applied to a user equipment, where the computer program includes a series of instructions, when the instruction is executed, to perform any one of the twenty-fifth aspects The operation of the user equipment in the method.
  • an embodiment of the present invention provides a computer program product, which is applied to a network side device, where the computer program includes a series of instructions, when the instruction is executed, to perform as in the twenty-sixth aspect The operation of the network side device in a method as described.
  • the network side device may send the group identifier, or the group identifier and the time-frequency resource to the UE, so that the UE sends the network-side device after the time-frequency resource is descrambled according to the group identifier.
  • the first system message in the case that multiple UEs request the same system message, the network side device does not need to send a dedicated signaling transmission system message to each UE, but sends the system message through multicast mode.
  • the multicast mode can save network time-frequency resources; or the network-side device can broadcast the first system message requested by the system message when receiving the system message request sent by the UE, where the base station requests the same system message for more UEs, the base station
  • the first system message is not transmitted to each UE through dedicated signaling, and the first system message is broadcasted in a broadcast manner, which not only enables the UE that currently needs the first system message to be received, but also makes the first system message interested.
  • the other UEs receive the first system message in advance without requesting acquisition from the base station, and the first system message occupies more network time-frequency resources than the proprietary signaling, and the first system message is broadcasted to save the network. Frequency resources.
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a UE according to an embodiment of the present disclosure
  • FIG. 3 is a schematic flowchart of a method for sending a system message according to an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart of a method for sending a system message according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a method for sending a system message according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of a method for sending a system message according to an embodiment of the present disclosure
  • FIG. 7 is a schematic flowchart of a method for sending a system message according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a time-frequency resource or a sending occasion of a UE acquiring a system message according to an embodiment of the present invention
  • FIG. 8 is a schematic flowchart of a method for sending a system message according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
  • FIG. 14 is a schematic structural diagram of a network side device according to an embodiment of the present disclosure.
  • FIG. 15 is a schematic structural diagram of a UE according to an embodiment of the present disclosure.
  • FIG. 16 is a schematic structural diagram of a UE according to an embodiment of the present invention.
  • the embodiment of the present invention is applicable to a scenario in which the UE requests the network (NW) to send the On-demand SI, that is, the SI is sent by the NW to the UE when the UE needs it.
  • NW network
  • the embodiment of the present invention provides a communication system, as shown in FIG. 1 , including at least one UE and a network side device, where the network side device may be a base station, and the UE is used in the cell coverage of the base station, and the UE is configured to send to the network side device.
  • the system message request is used by the network side device to send the system message requested by the UE to the UE in a multicast manner or a broadcast manner according to the system message request.
  • the UE may be any one of the following, and the UE may be static or mobile.
  • the UE may include, but is not limited to, a station, a mobile station, a subscriber unit, a personal computer, a laptop computer, a tablet computer, a netbook.
  • Network Terminal, Cellular Phone, Handheld, Cordless Phone, Personal Digital Assistant (PDA), Data Card, General Serial bus (Universal Serial Bus, USB) is inserted into the device, Mobile WiFi hotspot devices (MiFi Devices), smart watches, smart glasses, wireless modems (English: Modem), wireless routers, wireless local loop (WLL) stations, etc.; base stations (NodeB) can be long-term evolution A base station in a (Long Term Evolution, LTE) network, or a base station in an evolved universal terrestrial radio access network (UTRAN) network, or a base station in a new wireless network, or the like.
  • LTE Long Term Evolution
  • UTRAN evolved universal terrestrial radio access network
  • FIG. 2 is a block diagram showing a partial structure of a mobile phone related to an embodiment of the present invention.
  • the mobile phone includes: a radio frequency (RF) circuit 210, a power source 220, a processor 230, a memory 240, an input unit 250, a display unit 260, a sensor 270, an audio circuit 280, and the like.
  • RF radio frequency
  • the structure of the handset shown in FIG. 2 does not constitute a limitation to the handset, and may include more or less components than those illustrated, or some components may be combined, or different component arrangements.
  • a base station (BS) device also referred to as a base station, is a device deployed in a wireless access network to provide wireless communication functions.
  • a device providing a base station function in a 2G network includes a base transceiver station (BTS) and a base station controller (BSC), and the device providing the base station function in the 3G network includes a Node B (NodeB) and the wireless device.
  • BTS base transceiver station
  • BSC base station controller
  • NodeB Node B
  • a radio network controller which provides a base station function in a 4G network, includes an evolved NodeB (eNB), and a device that provides a base station function in a 5G network, including a new radio node B (New Radio NodeB) , gNB), Centralized Unit (CU), Distributed Unit (Distributed Unit) and a new wireless controller.
  • eNB evolved NodeB
  • gNB new radio node B
  • CU Centralized Unit
  • Distributed Unit Distributed Unit
  • AP Access Point
  • the embodiment of the present invention provides a system message sending method, a UE, and a network side device.
  • the network side device may be the foregoing base station or any other network side device.
  • the base station may Determining the number of requests for the current system according to the system message request for requesting the system message.
  • the system message may be sent to each UE by using dedicated signaling; when the number of requests is large, the multicast may be adopted.
  • the method sends a group ID (Group ID), a time-frequency resource, and a system message to multiple UEs requesting the same system message.
  • the system message may be sent to the UE in a broadcast manner, so that when multiple UEs request the same system, In the case of a message, the system message can be sent to the UE in a multicast or broadcast manner, and the UE does not need to send the system message to each UE that requests the system message through the dedicated signaling, which can reduce the network time-frequency resources occupied by multiple dedicated signaling. .
  • An embodiment of the present invention provides a method for sending a system message, where the NW side sends a system message to a UE that requests a system message in a multicast manner, and the network side device, as shown in FIG. 3, includes:
  • the network side device receives a system message request sent by the user equipment UE, where the system message request is used to request the network side device to obtain the first system message.
  • the network side device may be the foregoing base station, and the first system message is any On-demand SI.
  • the network side device sends the group identifier to the UE, or the network side device sends the group identifier and the time-frequency resource of the first system message to the UE.
  • the group ID is used to descramble the time-frequency resource of the received system message according to the group ID when the network side device sends the system message in multicast mode.
  • group identifier can also be predefined by the protocol or can be obtained according to the rules predefined by the protocol.
  • the base station may send the group ID to the UE that requests the first system message, and the group ID and the UE may be pre-configured in the UE. Corresponding relationship of time-frequency resources, or sending a Group ID and a time-frequency resource of the first system message to the UE requesting the first system message.
  • the network side device sends a first system message to the UE.
  • the UE may descramble the time-frequency resource according to the group ID, and receive the first system message sent by the base station according to the time-frequency resource. For the base station, the UE does not need to send the dedicated signaling transmission to each UE that requests the first system message.
  • the system message is sent in the multicast mode, which saves the network time-frequency resources of the first system message.
  • the network side device may further send the group ID and the receiving time indication information of the first system message to the UE, where the receiving time indication information may be used to indicate that the UE is in a certain time range, or a certain time point, or Receiving the first system message in a certain time window; correspondingly, in step 303, the UE descrambles the receiving time indication information according to the group ID The time-frequency resource indicated in the time, and receiving the first system message sent by the network side device. For example, as shown in FIG. 4, the UE sends a system message to the UE that sends the system message request in the multicast mode.
  • the UE sends a system request message to the network side device, where the system request message is used to request the network side device to acquire the first system message.
  • the UE receives the group identifier sent by the network side device, or the UE receives the group identifier sent by the network side device and the time-frequency resource of the first system message.
  • the UE may receive the group ID sent by the network side device and the receiving time indication information of the first system message, and the receiving time indication information may be used to indicate that the UE is in a certain time range, or a certain time point, or a certain time.
  • the first system message is received within the window.
  • the group identity may also be protocol pre-defined, or the UE may obtain according to rules predefined by the protocol.
  • the UE receives the first system message sent by the network side device according to the group identifier and the time-frequency resource of the obtained first system message.
  • the UE may descramble the time-frequency resource in time indicated by the receiving time indication information according to the group ID, and receive the first system message sent by the network side device.
  • An embodiment of the present invention provides a system message sending method, in which a NW side sends a system message to a UE that requests a system message in a multicast manner, and the network side device is a base station. As shown in FIG. 5, the method includes:
  • the network side device sends a first broadcast message, where the first broadcast message includes indication information of a system message sent according to the requirement.
  • the base station may be broadcasted to the UE for the broadcast, and the base station may broadcast the indication information of the On-demand SI to the UE for the On-demand SI transmitted based on the UE requirement, to indicate that the UE needs to send the system message request to obtain the On-demand SI.
  • the SI referred to in the following embodiments refers to On-demand SI unless otherwise specified.
  • the indication information can be in the form of a list or a bitmap.
  • the first broadcast message may include an on-demand SI list or a bitmap to indicate the SI.
  • the list may include a sequence number of the system message, or a sequence number and a label (Value Tag, VT) of the system message, or a sequence number and a label including the system message, and at least two system messages.
  • Public tag common VT
  • the tag is used by the UE to determine if the content of the system message has changed.
  • the indication information may be:
  • the On-demand SI num in Table 1 indicates the sequence number of the SI, for example, the sequence numbers are SI1 and SI2, and VT indicates the corresponding tag of the SI, for example, 1 and 3.
  • the list may not include VT.
  • the UE receives the list it may determine, according to the sequence number, which SIs need to be obtained by sending a system message request, that is, the UE has the corresponding relationship between the sequence number of the SI and the SI, and the UE receives the sequence number of the SI in the received list and the corresponding The relationship knows which SIs need to be obtained by sending a system message request.
  • the correspondence may be pre-configured to the UE by the base station.
  • the SI sequence includes the serial number, the label, and the public label of the SI
  • SI group1 includes SI1 and SI2
  • SI group2 includes SI3 and SI4
  • the common VT of SI group1 is 0, and the common VT of SI group2 is 1.
  • the indication information can be:
  • SI group 1 Common VT 1 SI 1 SI 2 SI group 2 Common VT 1 SI 3 SI 4
  • the VT of SI1 when the VT of SI1 is 1, the VT of SI2 is 3, and the common VT of the corresponding SI group 1 is 1. If the message content of any SI in SI1 and SI2 changes, the VT corresponding to the SI changes, and the common VT of the SI group 1 corresponding to SI1 and SI2 also changes. For example, the VT corresponding to the SI is incremented by 1. The common VT of SI group 1 also accumulates 1; similarly, the message content of any SI in SI3 and SI4 changes, the VT corresponding to SI changes, and the common VT of SI group 2 corresponding to SI3 and SI4 also Change.
  • the corresponding VT when the content of the SI changes, the corresponding VT is continuously accumulated, and the value of the VT can be limited to a certain value range.
  • the VT value ranges from 1 to 16, when the content of the SI is frequent. After the change, so that the value of the corresponding VT changes to the maximum value 16, if the content of the SI changes again, the value of the corresponding VT can be updated from 16 to the minimum value 1 of VT.
  • the value of each bit in the bitmap is used to indicate whether the SI corresponding to each bit needs to be obtained by the UE by sending a system message request.
  • the bitmap may be 0011, and each bit corresponds to SI1, SI2, SI3, and SI4.
  • the bit value of 0 indicates that the corresponding SI is not broadcast, and the UE needs to obtain a system message request.
  • the bit value of 1 indicates that the corresponding SI is broadcast.
  • the UE may obtain the time-frequency resource of the SI according to the scheduling information in the broadcast and receive the SI.
  • the first broadcast message may be periodically broadcasted, because in the cell coverage of the base station, a new UE may enter the coverage of the cell, so that the UE that newly enters the cell coverage may be
  • the indication information of the SI that needs to be obtained by sending a system message request is obtained in time.
  • the UE sends a system message request to the network side device, where the system message request is used to request the network side device to obtain the first system message.
  • the UE After receiving the indication information, the UE sends a system message request to the base station if the UE needs to acquire any SI indicated by the indication information, and the system message request may include the sequence number of the SI.
  • the system message request may further include a bitmap, where the bitmap may be used to request the network side device to obtain the first system message, where the bitmap includes at least one bit, and each bit may correspond to a different system message, and may be used to indicate whether to request acquisition.
  • the first system message corresponding to each bit for example, when one of the bit values is 1, the system message corresponding to the bit needs to be requested, and when the bit is 0, the system message corresponding to the bit is not required to be requested.
  • the system message request may include the SI sequence number and VT.
  • the system message requested by the UE includes SI1 and SI3, and the information content of the system message request (Request) sent by the UE can be as shown in Table 3-1:
  • the system message requested by the UE includes SI1 and SI3.
  • the system message sent by the network side device based on the request may include SI1, SI2, SI3, and SI4, the rightmost bit of the bitmap corresponds to SI1, and the leftmost side.
  • the corresponding content of the SI4 is as follows.
  • the information content of the system message request (Request) sent by the UE can be as shown in Table 3-2.
  • bitmap and the system message corresponding to the expression may also be that the rightmost bit of the bitmap corresponds to SI4, and the leftmost bit corresponds to the corresponding manner of SI1.
  • the information content of the system message request sent by the UE may be as shown in Table 4:
  • step 502 When the system message request carries the sequence number of the SI and does not carry the VT of the SI, after step 502, the process directly proceeds to step 505.
  • the process may proceed to step 503 after step 502.
  • the network side device determines whether to send the first system message to the UE. If yes, go to step 505. If no, go to step 504.
  • the base station may first determine whether the VT of the SI in the first system message sent by the UE is the same as the VT of the SI saved by the base station. The content of the saved first system message is available, and step 504 can be directly performed; if different, the base station determines that the content of the first system message on the base station side has been updated, and the base station needs to send the new first system message to the UE. For example, in the system message request sent by the UE, the sequence number of the SI is SI 3, and the VT is 3.
  • the base station When receiving the system message request, the base station acquires the VT of the SI 3 currently saved by the base station according to the SI number 3 of the SI, if the base station saves If the VT of the SI 3 is 3, the base station determines to send an acknowledgment (ACK) message to the UE to indicate that the content of the currently saved SI 3 is valid. If the VT of the SI 3 saved by the base station is 4, the base station side indicates that The content of SI 3 has been updated and the updated SI 3 needs to be sent to the UE.
  • ACK acknowledgment
  • the network side device sends an acknowledgement ACK message to the UE, to indicate that the UE continues to use the first system message saved by the UE.
  • the ACK message sent by the network side device needs to indicate the corresponding SI sequence number, so that the UE knows which SI content does not need to be updated.
  • the network side device sends the group identifier to the UE, or the network side device sends the group identifier and the time-frequency resource of the first system message to the UE.
  • the network side device may send the group ID and the receiving time indication information of the first system message to the UE, and the receiving time indication information may be used to indicate that the UE is in a certain time range, or a certain time point, or a certain time window.
  • the first system message is received within.
  • step 505 need not be performed.
  • the network side device sends the group identifier to the UE as an example, but does not limit other manners of obtaining the group identifier.
  • the group ID is used to descramble the time-frequency resource of the received system message according to the group ID when the network side device sends the system message in multicast mode.
  • the base station may pre-configure a correspondence between the at least one group ID and the time-frequency resource to the UE.
  • the base station may send a proprietary message to the UE that requests the first system message.
  • the Proprietary signaling includes a Group ID allocated to the UE requesting the first system message, to indicate that the UE obtains the time-frequency resource corresponding to the Group ID in the first system message according to the corresponding relationship, and further receives the time-frequency resource according to the time-frequency resource.
  • a system message the base station can pre-configure the time-frequency resources of the On-demand SI, and establish the correspondence between the Group ID and the time-frequency resources.
  • the UE After receiving the Group ID, the UE reads the pre-configured time-frequency resources. And attempting to demodulate to obtain the first system message.
  • the base station may pre-configure the correspondence between the at least one Group ID and the receiving time indication information in the UE.
  • the base station may first request the first system message.
  • the UE of the system message sends the dedicated signaling, and the dedicated signaling includes the group ID allocated to the UE requesting the first system message, to indicate that the UE obtains the corresponding information in the first system message according to the correspondence between the group ID and the receiving time indication information.
  • the receiving time corresponding to the group ID and then receiving the first system message according to the receiving time.
  • the base station can pre-configure the receiving time of the receiving time indication information to be On-demand SI, and establish a correspondence between the group ID and the receiving time.
  • the UE After receiving the group ID, the UE reads the pre-configured receiving time and tries. Demodulating to obtain a first system message;
  • the base station may send the dedicated signaling to the UE that requests the first system message, where the proprietary signaling includes the group ID and the time-frequency resource of the first system message, to indicate that the UE passes the group ID and the time.
  • the frequency resource receives the first system message to be sent by the base station;
  • the base station may send the dedicated signaling to the UE that requests the first system message, where the proprietary signaling includes the group ID, and sends the second broadcast message to the UE that requests the first system message, and second.
  • the broadcast message includes a time-frequency resource of the first system message to instruct the UE to receive the first system message by using the group ID and the time-frequency resource.
  • the base station may carry the time-frequency resource of the first system message by using a master information block (MIB) or a scheduling block (SB), that is, the second broadcast message may be an MIB or an SB, etc., and other applications may also be applied.
  • MIB master information block
  • SB scheduling block
  • Message format this application is not limited;
  • the base station may send the dedicated signaling to the UE that requests the first system message, where the dedicated signaling includes the receiving time indication information including the group ID and the first system message, and the receiving time indication information may be used.
  • the UE is instructed to receive the first system message in a certain time range, or a certain time point, or a certain time window, so that the UE receives the first system message to be sent by the base station by using the group ID and the receiving time indication information;
  • the base station may send the dedicated signaling to the UE that requests the first system message, where the proprietary signaling includes the group ID, and sends the second broadcast message to the UE that requests the first system message, and second.
  • the broadcast message includes receiving time indication information of the first system message to instruct the UE to receive the first system message by using the group ID and the receiving time indication information.
  • the base station may carry the receiving time indication information of the first system message through the main information block MIB or the scheduling block SB, that is, the second broadcast message may be an MIB or an SB, and other message formats may be applied, which is not limited in this application.
  • the base system may also carry the first system message in the message that sends the time-frequency resource, that is, when the base station is in the first achievable manner.
  • the proprietary signaling may include the Group ID and the first system message; when the base station sends the dedicated signaling in the second implementable manner, the proprietary signaling includes the Group ID, the time-frequency resource, and The first system message; when the base station transmits the second broadcast message in the third implementable manner, the second broadcast message includes the time-frequency resource and the first system message.
  • the network side device sends a first system message to the UE.
  • the base station sends the group ID, or the group ID and the time-frequency resource, or the group ID and the receiving time indication information to the UE that requests the first system message, or the UE can obtain the group ID according to the predefined or predefined rules of the protocol.
  • the base station may send the first system message to the UE requesting the first system message in a multicast manner.
  • each system message sent based on the demand may correspond to one Group ID, or at least two based on the demand.
  • the system message sent corresponds to the same common group ID.
  • the first system message sent by the network side device may include a sequence number of the first system message, or a sequence number including the first system message and the VT, or a sequence number including the first system message and the VT and a common VT of the at least two system messages.
  • the first system message sent by the network side device may further include a valid time of the first system message, where the effective time is used to indicate that when the UE has the requirement of acquiring the first system message after the expiration of the valid time, the UE needs to re-require
  • the network side device acquires the content of the new first system message.
  • the valid time may also be used to indicate the effective time of the time-frequency resource of the first system message. For example, when the valid time expires, when the UE acquires the first system message request, the UE may obtain the time-frequency resource according to the pre-configured time-frequency resource.
  • the method obtains the updated time-frequency resource, for example, the updated time-frequency resource is the time-frequency resource from the kth subframe to the k+nth subframe after the system message request is sent; or the UE may
  • the base station acquires new time-frequency resources.
  • the UE receives the first system message sent by the network side device according to the group identifier and the time-frequency resource of the obtained first system message.
  • the network side device carries the group ID to the UE by using the dedicated signaling, but does not limit other obtaining manners of the group identifier.
  • the UE may obtain the time-frequency resource according to the correspondence between the group ID and the time-frequency resource, for example, the time-frequency resource corresponding to the group ID is located.
  • the UE After receiving the time-frequency resource of the first system message, the UE receives the first system message in the time domain and the frequency domain corresponding to the time-frequency resource;
  • step 505 that is, the dedicated signaling carries the group ID and the time-frequency resource of the first system message
  • the UE descrambles the time-frequency resource according to the received group ID, and according to the descrambling
  • the time-frequency resource receives the first system message sent by the base station
  • the UE may first read the time-frequency resources carried in the MIB or the SB. And receiving, by the time-frequency resource, the first system message sent by the base station, where the group ID is used to descramble the first system message sent by the base station to the UE requesting the first system message.
  • the time-frequency resource may be replaced by the receiving time indication information, that is, the base station does not send the frequency domain information to the UE.
  • the UE needs to obtain the corresponding time range according to the receiving time indication information, or A time point, or a time window, and then receiving the first system message according to the Group ID and the reception time indication information.
  • the UE descrambles the receiving time indication information according to the received Group ID. And receiving the first system message sent by the base station according to the descrambled time-frequency resource; if the step 505 applies the fifth achievable manner, that is, the proprietary signaling carries the Group ID, carried in the MIB or the SB.
  • the receiving time indication information of the first system message the UE may first obtain the receiving time indication information carried in the MIB or the SB, and then receive the first system message sent by the base station according to the time-frequency resource.
  • the first system message requested by the system request message includes at least two system messages, for example, including SI 1 and SI 2
  • the first system message carries the common group ID of SI 1 and SI 2
  • the UE can use the common group.
  • the ID descrambles the time-frequency resource corresponding to the first system message.
  • the SI 1 and the SI 2 respectively correspond to one group ID, which is not limited in this application.
  • the corresponding relationship between the group ID and the paging period may be pre-configured in the UE.
  • the UE may obtain a corresponding paging period according to the corresponding relationship. That is, when the UE arrives at the paging cycle, it receives the paging message sent by the base station, and descrambles the received paging message by using the Group ID.
  • the network side device may further send a paging message to the UE according to the paging period, where the paging message is used to instruct the UE to obtain the last updated first system message according to the paging message, where the paging message includes the first update of the network side device.
  • Department At least one of a sequence number of the message, a content of the first system message, a VT of the first system message, and a time-frequency resource of the first system message.
  • the UE directly updates the currently stored first system message.
  • the paging message carries the VT of the first system message
  • the UE may compare the received VT with the VT of the first system message currently saved by the UE.
  • the UE determines that the content of the first system message has been updated.
  • the UE clears the content of the currently stored first system message.
  • the UE initiates a system message request and requests a new first system message from the network side device.
  • the paging message carries the time-frequency resource of the first system message
  • the UE can obtain the time-frequency resource of the first system message in the paging message, so that the UE can receive the new first system message according to the new time-frequency resource.
  • the paging message may further carry a common VT corresponding to the first system message, for example, the first system message includes the SI 3 and the SI 4, and when the UE receives the paging message, the comparison finds the common VT change, and learns the SI 3 And the content of the message in the SI 4 is changed.
  • the UE may determine whether the message content of the SI 3 and/or the SI 4 changes according to the scheduling information in the MIB or the SB sent by the network side device, where the scheduling information includes the SI 3 And the VT of the SI 4, the UE may determine whether the message content of the SI 3 and /SI 4 changes according to the VT of the SI 3 and the SI 4 and the VT of the SI 3 and/or the SI 4 currently saved by the UE, and request the base station to obtain the change. System message.
  • the group ID corresponding to the first system message may also be deleted, and when the UE needs to acquire the first system message next time, the system message request is sent to the base station again to obtain the first The message content after the system message is updated.
  • the embodiment of the present invention provides a system message sending method, when the UE needs to acquire any On-demand SI, that is, the first system message, and sends a system message request to the network side device, and then receives the UE message from the network side device.
  • the group identifier, or the group identifier and the time-frequency resource, or the group identifier and the receiving time indication information enable the UE to receive the first system message from the network side device according to the group identifier and the acquired time-frequency resource or the receiving time indication information, because the network side device A group identifier is allocated to the UE that requests the first system message.
  • the network side device When the number of UEs requesting the first system message is large, the network side device sends the message to the UE that requests the first system message through the dedicated signaling.
  • the network side device sends the first system message to the UE by using the group identifier, the group identifier, the time-frequency resource, or the group identifier and the receiving time indication information.
  • the UE may receive the first system message from the network side device according to the group identifier and the acquired time-frequency resource, and reduce the network side device to send the bearer system to each UE. When occupied by network message dedicated signaling frequency resources.
  • the embodiment of the present invention further provides a system message sending method, which is an example of sending a system message in a broadcast manner on the NW side.
  • a system message sending method which is an example of sending a system message in a broadcast manner on the NW side.
  • the method includes:
  • the network side device receives a system message request sent by the user equipment UE, where the system message request is used to request the network side device to obtain the first system message.
  • the network side device may be a base station, and the first system message may be any On-demand SI.
  • the network side device broadcasts the first system message.
  • the network side device determines that the first system message needs to be broadcast according to the number of requesting the first system message in a period of time
  • the network side device broadcasts the first system message, so that the UE requesting the first system message can receive and save the first system.
  • the UE that is interested in the first system message can also receive and save for later use, and does not need to send the dedicated signaling transmission to the UE in the prior art to each UE that requests the first system message.
  • a system message, but sent by broadcast, can save network time-frequency resources.
  • the network side device may first broadcast the time-frequency resource of the first system message, and then broadcast the time-frequency resource. Broadcasting the first system message, so that the UE requesting the first system message receives and saves the first system message on the time-frequency resource of the first system message broadcast by the network side device;
  • the network side device may periodically broadcast the time-frequency resource or the sending opportunity of the first system message.
  • the network side device determines that the first system message needs to be broadcast according to the number of requesting the first system message in a period of time
  • the network side The device selects the most recent time-frequency resource or the transmission opportunity to broadcast the first system message in the periodic time-frequency resource or the transmission time of the broadcast, and the period of the first system message that the UE requesting the first system message can broadcast on the network-side device
  • the first time system resource or the sending opportunity selects the latest time-frequency resource or the sending opportunity to receive and save the first system message.
  • the UE sends a system message in a broadcast manner on the NW side, including:
  • the UE sends a system message request to the network side device, where the system message request is used to request the network side device to acquire the first system message.
  • the UE receives a first broadcast message sent by the network side device, where the first broadcast message includes a first system message.
  • the UE after receiving the time-frequency resource of the first system message broadcast by the network side device, the UE receives the first system message broadcast by the network side device on the time-frequency resource;
  • T0, T3, and T6 represent periodic time-frequency resources or transmission timings of the first system message.
  • the base station sends a system message request, and the UE may receive the first system message SI sent by the base station at the next periodic time-frequency resource or the transmission opportunity T3;
  • the UE receives the time-frequency resource or the transmission opportunity of the first system message periodically, if the UE needs to acquire the first system message, the UE first determines the first system that is received next time. The first system message is received by the time-frequency resource of the message or the sending time. If received, the UE saves the first system message. If not, the UE sends a system message request to the network side device, and the network side device The time-frequency resource or the transmission opportunity of the first system message periodically transmitted next time receives and saves the first system message. As shown in Figure B of Figure 7a, T0, T3, and T6 represent periodic time-frequency resources or transmission opportunities of the first system message.
  • the UE waiting for a period of time (such as the time period indicated by the broken line in the graph B in FIG. 7a), determining whether the first system message SI is received at the time-frequency resource or the transmission timing received in the next period, and if it is received, saving, If not received, the system message request is sent at the time indicated by point b, and the time-frequency resource or the transmission opportunity indicated by the base station at the next period T6 receives the first system message SI.
  • a period of time such as the time period indicated by the broken line in the graph B in FIG. 7a
  • the following is a description of the broadcast system message on the NW side.
  • the embodiment of the present invention further provides a system message sending method, which is an example of sending a system message in a broadcast manner on the NW side, as shown in FIG.
  • the network side device sends a broadcast message, where the broadcast message includes indication information of a system message sent according to the requirement.
  • step 801 The implementation of the step 801 is similar to the step 501, and details are not described herein again.
  • the first broadcast message in step 501 is equivalent to the broadcast message in step 801.
  • the broadcast message in the step 801 may further include a time-frequency resource or a sending occasion of the SI, and is used to indicate that the UE acquires the SI according to the time-frequency resource or the sending occasion; optionally, the time-frequency resource of the SI or the sending
  • the timing may be periodically broadcast by the network side device.
  • the time-frequency resource may be a system message window for sending an SI, and the sending opportunity may be a sending period;
  • the broadcast message in step 801 may further include a monitoring duration of the SI, to indicate that the UE saves the SI if the SI is received within the monitoring duration, and if the SI is not received, the UE requests the network side device to broadcast the SI.
  • the UE sends a system message request to the network side device, where the system message request is used to request the network side device to obtain the first system message.
  • step 802 sends a system message request to the network side device may be similar to step 502, and details are not described herein again.
  • the UE sends a system message request to the network side device to request the first system message, and when the last time is received, The frequency resource or the sending occasion receives the first system message sent by the network side device.
  • the UE first determines whether the time-frequency resource or the transmission time received last time is received by the network-side device. The first system message, if received, the UE saves the first system message; if not received, the UE sends a system message request to the network side device to request the first system message.
  • the UE needs to acquire any On-demand SI, that is, the first system.
  • the timer may be started first, and the duration of the monitoring is the monitoring duration of the SI to be acquired.
  • the UE monitors whether the network side device sends the SI, and optionally, the network side device received by the UE.
  • the time-frequency resource or the transmission timing of the broadcast is used to receive the SI. If the UE receives the SI, the UE saves the SI and stops the timer. If the UE does not receive the SI, the UE sends the system to the network side device.
  • the message request may include a sequence number of the first system message in the system message request, or the system message request includes a sequence number and a VT of the first system message. It can be understood that, as an alternative, when the UE needs to acquire any On-demand SI, that is, the first system message, it can be understood that after the UE sends the system message request. It can be understood that, as an optional manner, before starting the timer, the UE may first determine, by using the indication information broadcast by the network side device, whether the first system message is sent by using a broadcast, and if yes, the UE starts timing. Device.
  • the network side device determines whether to broadcast the first system message. If yes, go to step 805. If no, go to step 804.
  • the base station may first determine whether the VT of the SI in the first system message sent by the UE is the same as the VT of the SI saved by the base station. The content of the saved first system message is available, and step 804 can be directly performed; if different, the base station determines that the content of the first system message on the base station side has been updated, and the base station needs to send the content of the new first system message to the UE. For example, in the system message request sent by the UE, the sequence number of the SI is SI 3, and the VT is 3.
  • the base station When receiving the system message request, the base station acquires the VT of the SI 3 currently saved by the base station according to the SI number 3 of the SI, if the base station saves If the VT of the SI 3 is 3, the base station determines to send an ACK message to the UE to indicate that the content of the SI 3 currently saved by the UE is valid. If the VT of the SI 3 saved by the base station is 4, the content of the base station side for the SI 3 is already Update, the updated SI 3 needs to be sent to the UE.
  • the network side device sends an acknowledgement message to the UE, to indicate that the UE continues to use the first system message saved by the UE.
  • the acknowledgment message may be an ACK message. It can be understood that when the system message request sent by the UE includes multiple SI numbers and VTs, the SN message sent by the network side device needs the SI number corresponding to the knowledge, so that the UE determines which systems. The message does not need to be updated.
  • the network side device broadcasts the first system message.
  • the network side device when the network side device determines that the first system message needs to be broadcast, the network side device broadcasts the first system message;
  • the network side device when the network side device determines that the first system message needs to be broadcast, the network side device first broadcasts the time-frequency resource or the sending opportunity of the first system message, and then broadcasts the first system message, so that the UE receives the message according to the receiving. Receiving the first system message sent by the network side device by the time-frequency resource or the sending occasion;
  • step 802 if the network side device periodically broadcasts the time-frequency resource or the sending opportunity of the first system message, and the UE needs to acquire the first system message, the UE requests the network side device. Sending the first system message, at this time, the network side device broadcasts the first system message, and the UE receives the first system message broadcast by the network side device after the latest time-frequency resource or the sending opportunity after requesting the first system message;
  • step 802 if the network side device periodically broadcasts the time-frequency resource or the transmission opportunity of the first system message, and the UE needs to acquire the first system message, the UE receives the latest time. If the first system message is not received on the time-frequency resource or the sending time, the UE requests the network side device to send the first system message, and the network side device broadcasts the first system message, and the UE receives the first system message after receiving the first system message. The time-frequency resource or the sending opportunity receives the first system message broadcast by the network side device.
  • the first system message may include a sequence number of the first system message, or a sequence number including the first system message and VT, or a sequence number including the first system message and the VT and a common VT of the at least two system messages.
  • the base station may scramble the first system message by using a Radio Network Temporary Identifier (RNTI).
  • RNTI Radio Network Temporary Identifier
  • the On-demand SI RNTI used by the On-demand SI may be different from the RNTI used by the Important SI in order to distinguish it from the periodically transmitted SI, that is, the RNTI used by the Important SI.
  • the on-demand SI RNTI may be inherent to the UE, or may be broadcast by the base station to the UE.
  • the UE learns that the base station adopts the broadcast through the indication information broadcast by the base station.
  • the method broadcasts the SI, and for the UE that does not store the SI but needs to acquire the SI, if the UE has started the timer and the timer does not time out, the UE receives the SI and saves, and stops the timer timing; If there is no UE that stores the SI and does not need to be (that is, the timer is not started but is interested in the SI), if the UE receives the SI, the UE can receive and save the SI for later use.
  • the UE may determine, according to the VT carried in the SI, whether the content of the currently saved SI needs to be updated, which may be based on the received VT in the SI and the current UE.
  • the VTs corresponding to the saved SIs are compared. If they are the same, the UE does not need to be updated, and the UE continues to use the currently stored SI. If not, the content of the SI is updated to the content of the SI received from the base station.
  • the base station needs to update the indication information broadcasted in step 801. For example, the base station updates the indication information of the broadcast according to the first system message that has been broadcast.
  • the base station may delete the indication information of the first system message from the list.
  • the indication information is:
  • the base station broadcasts the first system message SI 2
  • the base station needs to broadcast new indication information to the UE, and the sequence number and VT of the broadcasted first system message SI 2 are deleted from the indication information, and the updated indication information is as shown in Table 6. Show:
  • the indication information can be sent again as shown in Table 7:
  • the indication information of the broadcast message is a bitmap, that is, the On-demand SI is indicated by the bitmap
  • the value of each bit in the bitmap is used to indicate whether the SI corresponding to each bit needs to be obtained by the UE by sending a system message request.
  • the bitmap may be 0011, and each bit corresponds to SI1, SI2, SI3, and SI4.
  • the bit value of 0 indicates that the corresponding SI is not broadcast, and the UE needs to obtain a system message request.
  • the bit value of 1 indicates that the corresponding SI is broadcast.
  • the UE may directly acquire the time-frequency resource of the SI according to the scheduling information in the broadcast and receive the SI.
  • the base station has broadcasted the first system message SI 2
  • the base station needs to update the broadcasted bitmap to 0111; accordingly, if the base station cancels the broadcast of the first system message SI2, the broadcasted bitmap needs to be updated again to 0011.
  • the latest bitmap needs to be read to determine whether the value of each bit in the bitmap is used to indicate whether the SI corresponding to each bit needs to be obtained by the UE by sending a system message request. If yes, a system message request is initiated. Specific steps can be referred to the foregoing description.
  • the change of the bitmap can not notify the UE by using the paging message, and the UE reads the latest bitmap only when it needs to obtain the system message.
  • the embodiment of the present application further provides a technical solution, including: the network side device sends a paging message to the user equipment UE; the paging message is used to indicate that the UE acquires the last updated first system message according to the paging message.
  • the paging message includes a sequence number of the first system message that is last updated by the network side device, a content of the first system message, a tag value of the first system message, and a time of the first system message. At least one of the frequency resources.
  • the network side device may send a paging message to the UE according to the paging period, where the paging message is used to instruct the UE to obtain the last updated first system message according to the paging message, where the paging message includes At least one of a sequence number of the first system message, a content of the first system message, a VT of the first system message, and a time-frequency resource of the first system message that was last updated by the network side device.
  • the sequence number of the first system message may be indicated by a list, or may be indicated by a corresponding bit in the bitmap.
  • the UE may compare the received VT with the VT of the first system message currently saved by the UE. If not, the UE determines that the content of the first system message has been updated. The UE clears the content of the currently stored first system message.
  • the UE initiates a system message request and requests a new first system message from the network side device.
  • the paging message carries the time-frequency resource of the first system message
  • the UE can obtain the time-frequency resource of the first system message in the paging message, so that the UE can receive the new first system message according to the new time-frequency resource.
  • the paging message may further carry a common VT corresponding to the first system message, for example, the first system message includes the SI 3 and the SI 4, and when the UE receives the paging message, the comparison finds the common VT change, and learns the SI 3 And the content of the message in the SI 4 is changed.
  • the UE may determine whether the message content of the SI 3 and/or the SI 4 changes according to the scheduling information in the MIB or the SB sent by the network side device, where the scheduling information includes the SI 3 And the VT of the SI 4, the UE may determine whether the message content of the SI 3 and /SI 4 changes according to the VT of the SI 3 and the SI 4 and the VT of the SI 3 and/or the SI 4 currently saved by the UE, and request the base station to obtain Changing system messages.
  • Embodiment 1 A method for sending a system message, comprising: receiving, by a network side device, a system message request sent by a user equipment UE, where the system message request is used to request the network side device to obtain a first system message; The UE sends the group identifier, or the network side device sends the group identifier and the time-frequency resource of the first system message to the UE; the network side device sends the first system message to the UE.
  • Embodiment 2 The method according to Embodiment 1, further comprising: the network side device transmitting a first broadcast message, where the first broadcast message includes indication information of a system message sent according to demand, the indication information including the first system The indication information of the message; wherein the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and at least two system messages.
  • the label is used by the UE to determine whether the content of the system message changes; or the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to the each bit needs to pass the UE Send a system message request to get.
  • Embodiment 3 According to the method described in Embodiment 1 or 2, the network side device sends a group identifier to the UE, where the network side device pre-configures a correspondence between a group identifier and a time-frequency resource to the UE, where the network side The device sends the dedicated signaling to the UE that requests the first system message, where the dedicated signaling includes the group identifier, to indicate that the UE obtains the time-frequency resource corresponding to the group identifier according to the corresponding relationship, and then receives the first system.
  • the message that the network side device sends the group identifier and the first system message to the UE includes: the network side device sends the dedicated signaling to the UE that requests the first system message, where the proprietary signaling includes The group identifier and the time-frequency resource of the first system message, to indicate that the UE receives the first system message by using the group identifier and the time-frequency resource; or the network side device sends a special message to the UE that requests the first system message
  • the signaling includes the group identifier, and sends a second broadcast message to the UE, where the second broadcast message includes a time-frequency resource of the first system message, to indicate that the UE passes the group identifier and the Time-frequency resource reception A first message system.
  • Embodiment 4 The network side device according to any one of the embodiments 1-3, wherein each system message sent based on the requirement corresponds to a group identifier, or at least two system messages sent according to the requirement correspond to the same public group identifier.
  • the first system message includes a sequence number of the first system message, or the first system message includes a sequence number of the first system message And the label, or the first system message includes a sequence number and a label of the first system message, and a public label of the at least two system messages; the first system message may further include an effective time of the first system message, the valid time And indicating, when the UE obtains the first system message that the valid time is reached, re-acquiring the content of the first system message from the network side device.
  • Embodiment 5 A network side device, comprising: a receiving unit, configured to receive a system message request sent by a user equipment UE, where the system message request is used to request the network side device to obtain a first system message; and a sending unit is configured to: Sending the group identifier to the UE, or the network side device sends the group identifier and the time-frequency resource of the first system message to the UE; the sending unit is further configured to send the first system message to the UE.
  • Embodiment 6 The network side device according to Embodiment 5, the sending unit is further configured to: send a first broadcast message, where the first broadcast message includes indication information of a system message sent according to a requirement; the indication information includes the first The indication information of the system message; wherein the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and at least two systems a public label of the message, wherein the label is used by the UE to determine whether the content of the system message changes; or the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to the each bit needs the UE Obtained by sending a system message request.
  • the first broadcast message includes indication information of a system message sent according to a requirement
  • the indication information includes the first The indication information of the system message
  • the indication information includes a sequence number of the system message, or the indication information includes
  • Embodiment 7 The network side device described in Embodiment 5 or 6, the sending unit is configured to: pre-configure a correspondence between a group identifier and a time-frequency resource to the UE, where the network-side device requests the first system message
  • the UE sends the dedicated signaling, the dedicated signaling includes the group identifier, to indicate that the UE obtains the time-frequency resource corresponding to the group identifier according to the corresponding relationship, and receives the first system message; or the sending unit is used to send The UE that requests the first system message sends the dedicated signaling, where the dedicated signaling includes the group identifier and the time-frequency resource of the first system message, to indicate that the UE receives the first group by using the group identifier and the time-frequency resource.
  • the sending unit is configured to send a dedicated signaling to the UE requesting the first system message, the dedicated signaling includes the group identifier, and send a second broadcast message to the UE, the second broadcast message
  • the time-frequency resource of the first system message is included to indicate that the UE receives the first system message by using the group identifier and the time-frequency resource.
  • Embodiment 8 The network side device according to any one of embodiments 5-7, wherein each system message sent according to requirements corresponds to a group identifier, or at least two system messages sent according to requirements correspond to the same public group identifier.
  • the first system message includes a sequence number of the first system message, or the first system message includes a sequence number and a label of the first system message, or the first system message includes a sequence number and a label of the first system message, and a public label of the at least two system messages; the first system message may further include a valid time of the first system message, where the valid time is used to indicate that the UE re-receives the first system message when the first system message is obtained The network side device acquires the content of the first system message.
  • Embodiment 9 A method for sending a system message, the user equipment UE sends a system request message to a network side device, where the system request message is used to request the network side device to acquire a first system message; the UE receives the network side The group identifier sent by the device, or the UE receives the group identifier sent by the network side device and the time-frequency resource of the first system message; the UE receives the time-frequency resource according to the group identifier and the acquired first system message.
  • the first system message sent by the network side device the user equipment UE sends a system request message to a network side device, where the system request message is used to request the network side device to acquire a first system message; the UE receives the network side The group identifier sent by the device, or the UE receives the group identifier sent by the network side device and the time-frequency resource of the first system message; the UE receives the time-frequency resource according to the group identifier and the acquired first system message.
  • Embodiment 10 The method according to Embodiment 9, before the UE sends the system message request, the method further includes: receiving, by the UE, a first broadcast message sent by the network side device, where the first broadcast message includes: The indication information of the sent system message; the indication information includes indication information of the first system message; wherein the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information Include a sequence number and a label of the system message, and a common label of at least two system messages, wherein the label is used by the UE to determine whether the content of the system message changes; or the indication information includes a bitmap, each bit in the bitmap The value of the system is used to indicate that the system message corresponding to the respective bit needs to be obtained by the UE by sending a system message request.
  • the first broadcast message includes: The indication information of the sent system message; the indication information includes indication information of the first system message; wherein the indication information includes a sequence number of the system
  • Embodiment 11 The method according to Embodiment 9 or 10, the UE receiving the group identifier sent by the network side device, the UE receiving the dedicated signaling sent by the network side device, the proprietary signaling including the group Identifying, by the UE, the first system sent by the network side device according to the group identifier and the acquired time-frequency resource of the first system message
  • the message includes: the UE obtaining the time-frequency resource of the first system message according to the correspondence between the group identifier and the pre-configured time-frequency resource; the UE receiving the network-side device according to the time-frequency resource of the first system message First system message.
  • Embodiment 12 The method according to Embodiment 9 or 10, the UE receiving the group identifier sent by the network side device and the time-frequency resource of the first system message, the UE receiving the proprietary signal sent by the network side device
  • the private signaling includes the group identifier and the time-frequency resource of the first system message; or the UE receives the dedicated signaling sent by the network side device, the proprietary signaling includes the group identifier, and receives the A second broadcast message sent by the network side device, where the second broadcast message includes a time-frequency resource of the first system message.
  • Embodiment 13 A user equipment UE, comprising: a sending unit, configured to send a system request message to a network side device, where the system request message is used to request the network side device to acquire a first system message; and the receiving unit is configured to receive a group identifier sent by the network side device, or the UE receives the group identifier and the time-frequency resource of the first system message sent by the network side device; the receiving unit is further configured to: according to the group identifier and the first obtained The time-frequency resource of the system message receives the first system message sent by the network side device.
  • Embodiment 14 The UE according to Embodiment 13, the receiving unit is further configured to: receive a first broadcast message sent by the network side device, where the first broadcast message includes indication information of a system message sent according to a requirement; the indication The information includes the indication information of the first system message, where the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common tag of at least two system messages, wherein the tag is used by the UE to determine whether the content of the system message changes; or
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to the respective bit needs to be obtained by the UE by sending a system message request.
  • Embodiment 15 The UE described in Embodiment 13 or 14, the receiving unit is configured to: receive the dedicated signaling sent by the network side device, where the proprietary signaling includes the group identifier; or
  • an obtaining unit configured to obtain a time-frequency resource of the first system message according to the correspondence between the group identifier and the pre-configured time-frequency resource; the receiving unit is configured to: according to the group identifier and the pre-configured time-frequency resource Corresponding relationship obtains time-frequency resources of the first system message.
  • Embodiment 16 The UE according to Embodiment 13 or 14, the receiving unit is configured to: receive the dedicated signaling sent by the network side device, where the dedicated signaling includes the group identifier and the first system message Frequency resource; or
  • the receiving unit is configured to: receive the dedicated signaling sent by the network side device, where the dedicated signaling includes the group identifier, and receive a second broadcast message sent by the network side device, where the second broadcast message includes the first The time-frequency resource of the system message.
  • Embodiment 17 A method for sending a system message, comprising: receiving, by a network side device, a system message request sent by a user equipment UE, where the system message request is used to request the network side device to obtain a first system message; the network side device broadcasts The first system message.
  • Embodiment 18 The method as described in Embodiment 17, the method further comprising: the network side device transmitting a broadcast message, the broadcast message including indication information of a system message sent according to the requirement, the indication information including the first system message Instructing information; wherein the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a public label of the at least two system messages , wherein the tag is used by the UE to determine whether the content of the system message changes; or
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to the respective bit needs to be obtained by the UE by sending a system message request.
  • Embodiment 19 The method described in Embodiment 17 or 18, the broadcast message further includes a time-frequency resource or a sending occasion of the system message, and is used to indicate that the UE acquires the system message at the time-frequency resource or the sending occasion; or
  • the broadcast message further includes a monitoring duration of the system message, and is used to indicate that the UE saves the system message if the system message is received within the monitoring duration, and if the system message is not received, the UE is sent to the network side device. Request to broadcast the system message.
  • Embodiment 20 A network side device, comprising: a receiving unit, configured to receive a system message request sent by a user equipment UE, where the system message request is used to request the network side device to obtain a first system message; and a broadcast unit is configured to: Broadcast the first system message.
  • Embodiment 21 The network side device described in Embodiment 20, the broadcast unit is further configured to send a broadcast message, where the broadcast message includes indication information of a system message sent according to a requirement; the indication information includes an indication of the first system message Information, wherein the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a public label of the at least two system messages, Wherein the tag is used by the UE to determine whether the content of the system message changes; or
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to the respective bit needs to be obtained by the UE by sending a system message request.
  • Embodiment 22 The network side device according to the embodiment 20 or 21, the broadcast message further includes a time-frequency resource or a sending occasion of the system message, and is used to indicate that the UE acquires the system message at the time-frequency resource or the sending opportunity. ;or
  • the broadcast message further includes a monitoring duration of the system message, and is used to indicate that the UE saves the system message if the system message is received within the monitoring duration, and if the system message is not received, the UE is sent to the network side device. Request to broadcast the system message.
  • Embodiment 23 A method for sending a system message, comprising:
  • the user equipment UE sends a system message request to the network side device, where the system message request is used to request the network side device to acquire the first system message; the UE receives the first broadcast message sent by the network side device, and the first broadcast message The first system message is included.
  • Embodiment 24 The method of embodiment 23, further comprising:
  • the indication information includes indication information of the first system message, where the indication information includes the a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common label of the at least two system messages, wherein the label is used by the UE to determine the Whether the content of the system message changes; or
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to the respective bit needs to be obtained by the UE by sending a system message request.
  • Embodiment 25 The method according to Embodiment 24, the second broadcast message further includes a time-frequency resource or a sending occasion of the system message, and the UE receiving the first broadcast message sent by the network side device includes: the UE according to the time The frequency resource or the sending occasion receives the first broadcast message sent by the network side device.
  • the second broadcast message further includes a monitoring duration of the system message; before the UE sends the system message request to the network side device, the method further includes:
  • the UE When the UE determines that the first system message needs to be acquired, the UE starts a timer, where the timer duration is a monitoring duration of the first system message; and the UE determines whether the first system message is received within the monitoring duration; If no, the UE determines that the system message request needs to be sent to the network side device.
  • Embodiment 27 A user equipment UE, including:
  • a sending unit configured to send a system message request to the network side device, where the system message request is used to request the network side device to acquire the first system message, and the receiving unit is configured to receive the first broadcast message sent by the network side device,
  • the first broadcast message includes the first system message.
  • Embodiment 28 The UE according to Embodiment 27, the receiving unit is further configured to: receive a second broadcast message sent by the network side device, where the second broadcast message includes indication information of a system message sent according to the requirement, the indication The information includes the indication information of the first system message, where the indication information includes a sequence number of the system message, or the indication information includes a sequence number and a label of the system message, or the indication information includes a sequence number and a label of the system message, and a common tag of at least two system messages, wherein the tag is used by the UE to determine whether the content of the system message changes; or
  • the indication information includes a bitmap, and the value of each bit in the bitmap is used to indicate that the system message corresponding to the respective bit needs to be obtained by the UE by sending a system message request.
  • Embodiment 29 The UE according to Embodiment 28, the second broadcast message further includes a time-frequency resource or a sending occasion of the system message, and the receiving unit is configured to: receive the network side device according to the time-frequency resource or the sending occasion The first broadcast message sent.
  • Embodiment 30 The UE according to Embodiment 28 or 29, the second broadcast message further includes a monitoring duration of the system message; and before the UE sends the system message request to the network side device, further comprising a timing unit, When the UE determines that the first system message needs to be acquired, the timer is started, and the duration of the timer is the monitoring duration of the first system message.
  • the determining unit is configured to determine whether the first system is received within the monitoring duration. The message; if it is determined to be no, it is determined that the system message request needs to be sent to the network side device.
  • the system message sending method when the UE requests to acquire the first system message, the network side device does not send the dedicated signaling to each UE that requests the first system message, as in the prior art. Rather, the first system message is broadcasted, so that the UE in need can receive the first system message, and the UE interested in the first system message can also receive and save the first system message, so that the network side device can be reduced to each The UE sends network resources for proprietary signaling.
  • each network element such as a base station, a UE, etc.
  • each network element includes hardware structures and/or software modules corresponding to each function.
  • the present invention can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
  • the embodiments of the present invention may divide the function modules of the network side device, the UE, and the like according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present invention is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • FIG. 9 is a schematic diagram of a possible configuration of a network side device involved in the foregoing embodiment, where the network side device includes: a receiving unit 901, a sending unit 902, and a determination. Unit 903.
  • the receiving unit 901 is configured to support the network side device to perform the process 301 in FIG. 3
  • the sending unit 902 is configured to support the network side device to perform the processes 302 and 303 in FIG. 3, and the processes 501, 504, 505, and 506 in FIG.
  • the unit 903 is configured to support the network side device to perform the process 503 in FIG. 5. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.
  • FIG. 10 is a schematic diagram of a possible structure of a UE involved in the foregoing embodiment, where the UE includes: a sending unit 101, a receiving unit 102, and an obtaining unit 103.
  • the sending unit 101 is configured to support the UE to perform the process 401 in FIG. 4, the process 502 in FIG. 5, the receiving unit 102 is configured to support the UE to perform the processes 402 and 403 in FIG. 4, the process 507 in FIG.
  • the obtaining unit 103 is configured to support the UE to acquire the time-frequency resource of the system message according to the correspondence between the group ID and the time-frequency resource. All the related content of the steps involved in the foregoing method embodiments may be referred to the functional descriptions of the corresponding functional modules, and details are not described herein again.
  • FIG. 11 is a schematic diagram of another possible structure of the network side device involved in the foregoing embodiment, where the network side device includes: a receiving unit 111, a broadcasting unit 112, The transmitting unit 113 and the determining unit 114.
  • the receiving unit is configured to support the network side device to perform the process 601 in FIG. 6.
  • the broadcast unit is configured to support the network side device to perform the process 602 in FIG. 6, and the sending unit is configured to support the network side device to perform the processes 801, 804 in FIG. 805.
  • the determining unit is configured to support the network side device to perform the process 803 in FIG. 8.
  • the related content of each step involved in the foregoing method embodiments may be referred to the function description of the corresponding function module, and details are not described herein again.
  • FIG. 12 is a schematic diagram of another possible structure of the UE involved in the foregoing embodiment, where the UE includes: a sending unit 121, a receiving unit 122, and a timing unit 123, in a case where each function module is divided by a corresponding function.
  • the unit 124 is determined.
  • the sending unit is configured to support the UE to perform the process 701 in FIG. 7 , the process 802 in FIG. 8
  • the receiving unit is configured to support the UE to perform the process 702 in FIG. 7
  • the timing unit is configured to support the UE to perform the description about the timer in FIG. 8 .
  • the method for example, the method in step 802, the determining unit is configured to support the UE to perform the fourth segment in step 805 of FIG. 8, ie, to determine whether to update the SI. All relevant content of each step involved in the foregoing method embodiments may be referred to a corresponding function module. The functional description of the block will not be described here.
  • FIG. 13 shows a possible structural diagram of the network side device involved in the above embodiment.
  • the network side device 13 includes a processing module 1301 and a communication module 1302.
  • the processing module 1301 is configured to perform control management on the actions of the network side device.
  • the processing module 1301 is configured to support the network side device to perform the process 503 in FIG. 5, the process 803 in FIG.
  • the communication module 1302 is configured to support communication between the network side device and other network entities, for example, communication with the UE, for example, with the functional modules or network entities shown in FIG. 4, FIG. 5, FIG. 7, FIG.
  • the network side device may further include a storage module 1303 for storing program codes and data of the base station.
  • the processing module 1301 may be a processor or a controller, and may be, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), and an application-specific integrated circuit (Application-Specific). Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication module 1302 can be a transceiver, a transceiver circuit, a communication interface, or the like.
  • the storage module 1303 may be a memory.
  • the network side device may be the network side device shown in FIG.
  • the network side device 14 includes a processor 1412, a transceiver 1413, a memory 1411, and a bus 1414.
  • the transceiver 1413, the processor 1412, and the memory 1411 are connected to each other through a bus 1414.
  • the bus 1414 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. Wait.
  • PCI Peripheral Component Interconnect
  • EISA Extended Industry Standard Architecture
  • Wait The bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 14, but it does not mean that there is only one bus or one type of bus.
  • FIG. 15 shows a possible structural diagram of the UE involved in the above embodiment.
  • the UE 15 includes a processing module 1501 and a communication module 1502.
  • the processing module 1501 is configured to perform control management on the action of the UE.
  • the processing module 1501 is configured to support the UE to perform, according to the received label, whether to update the system message saved by the UE.
  • the communication module 1502 is configured to support communication between the UE and other network entities, for example, with the network side device, for example, with the functional modules or network entities shown in FIG. 3, FIG. 5, FIG. 6, FIG.
  • the UE may further include a storage module 1503 for storing program codes and data of the UE.
  • the processing module 1501 may be a processor or a controller, such as a CPU, a general purpose processor, a digital signal processor DSP, an application specific integrated circuit ASIC, an FPGA or other programmable logic device, a transistor logic device, a hardware component, or any of them. combination. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
  • the processor may also be a combination of computing functions, for example, including one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
  • the communication module 1502 can be a transceiver, a transceiver circuit, a communication interface, or the like.
  • the storage module 1503 can be a memory.
  • the processing module 1501 is a processor
  • the communication module 1502 is a transceiver
  • the storage module 1503 is a memory
  • the UE involved in the embodiment of the present invention may be the UE shown in FIG. 16.
  • the UE 16 includes a processor 1612, a transceiver 1613, a memory 1611, and a bus 1614.
  • the transceiver 1613, the processor 1612, and the memory 1611 are connected to each other through a bus 1614.
  • the bus 1614 may be a peripheral component interconnect standard PCI bus or an extended industry standard structure EISA bus.
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 16, but it does not mean that there is only one bus or one type of bus.
  • An embodiment of the present invention further provides a communication system, including the network involved in the foregoing embodiments of FIG. 3, FIG. 4, and FIG.
  • the side device and the UE the network side device may be used to perform the processes 301, 302, and 303 of FIG. 3, the processes 501, 503, 504, 505, and 506 in FIG. 5, the UE may be used to execute the processes 401 and 402 in FIG.
  • the network side device in the process 502 and 507 in FIG. 5 refer to the implementation manners of the steps in FIG. 3 and FIG. 5.
  • the specific implementation of the UE refer to the implementation manners of the steps in FIG. 4 and FIG. 5.
  • the embodiment of the present invention further provides a communication system, including the network side device and the UE involved in the foregoing embodiments of FIG. 6, FIG. 7, and FIG. 8, the network side device may be used to perform the processes 601 and 602 in FIG.
  • the process 801, 803, 804, 805 in the UE can be used to perform the processes 701 and 702 in FIG. 7, the process 802 in FIG. 8, and the specific implementation of the network side device can be implemented in the steps of FIG. 6 and FIG.
  • the specific implementation of the UE refer to the implementation manner of each step in FIG. 7 and FIG. 8.
  • the embodiment of the present invention further provides a communication system, including the network side device in the method embodiment of the foregoing FIG. 3 and FIG. 5, where the network side device can be used to perform the processes 301, 302 in FIG. 3 and FIG. 303, 501, 503, 504, 505, and 506, the specific implementation of the network side device may refer to the specific implementation in the method embodiment shown in FIG. 3 and FIG. 5.
  • the embodiment of the present invention further provides a communication system, including the network side device involved in the method embodiment in FIG. 6 and FIG. 8, the network side device may be used to perform the processes 601, 602, and 801 in FIG. 6 and FIG. 803, 804, and 805.
  • the network side device may be used to perform the processes 601, 602, and 801 in FIG. 6 and FIG. 803, 804, and 805.
  • the specific implementation of the network side device refer to the specific implementation in the method embodiment shown in FIG. 6 and FIG. 8.
  • the embodiment of the present invention further provides a system chip, including an input/output interface, at least one processor, a memory, a bus, and the like.
  • the input/output interface can be used to execute the processes 301, 302, and 303 in FIG. 3, and the process 501 in FIG. 504, 505, and 506, the processor is configured to execute the process 503 in FIG. 5, the memory is used to store applications and data, such as storing indication information and system messages, etc., the input and output interfaces, the at least one processor, and the memory are connected on the bus.
  • the system chip can be a system on chip (SoC) or the like.
  • the embodiment of the present invention further provides a system chip, including an input and output interface, at least one processor, a memory, a bus, and the like.
  • the input and output interface can be used to execute the processes 401 and 402 in FIG. 4, and the processes 502 and 507 in FIG.
  • the memory is used to store applications and data, etc., and the input and output interfaces and the memory are connected to the bus.
  • the embodiment of the present invention provides a system chip, including an input/output interface, at least one processor, a memory, a bus, and the like.
  • the input/output interface can be used to execute the processes 601 and 602 in FIG. 6, 801, 804, and 805 in FIG.
  • the processor is configured to execute the process 803 of FIG. 8, the memory for storing applications and data, the input and output interface, the at least one processor, and the memory connected to the bus.
  • the embodiment of the present invention provides a system chip, including an input/output interface, at least one processor, a memory, a bus, and the like.
  • the input/output interface can be used to execute processes 701 and 702 in FIG. 7, and process 802 in FIG.
  • the input and output interfaces, at least one processor and memory are connected to the bus.
  • the embodiment of the present invention further provides a computer storage medium for storing computer software instructions used by the network side device in FIG. 3 and FIG. 5, which includes processes 301, 302, and 303 for performing the foregoing FIG. Programs designed by processes 501, 503, 504, 505, and 506.
  • the embodiment of the present invention further provides a computer storage medium for storing computer software instructions used by the UEs in FIG. 4 and FIG. 5, which includes processes 401 and 402 for performing the above-described FIG. 4, and the process 502 in FIG. And 507 designed programs.
  • the embodiment of the present invention further provides a computer storage medium for storing computer software instructions used by the network side device in FIG. 6 and FIG. 8, which includes processes 601 and 602 for performing the above-mentioned FIG.
  • the embodiment of the present invention further provides a computer storage medium for storing computer software instructions used by the UEs in FIG. 7 and FIG. 8, which includes processes 701 and 702 for performing the above-mentioned FIG. 7, and process 802 in FIG. The program designed.
  • the steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware, or may be implemented by a processor executing software instructions.
  • the software instructions may be composed of corresponding software modules, which may be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable programmable read only memory ( Erasable Programmable ROM (EPROM), electrically erasable programmable read only memory (EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art.
  • An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium.
  • the storage medium can also be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in a core network interface device.
  • the processor and the storage medium may also exist as discrete components in the core network interface device.
  • the functions described herein can be implemented in hardware, software, firmware, or any combination thereof.
  • the functions may be stored in a computer readable medium or transmitted as one or more instructions or code on a computer readable medium.
  • Computer readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one location to another.
  • a storage medium may be any available media that can be accessed by a general purpose or special purpose computer.

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Abstract

本发明实施例提供一种系统消息的发送方法和设备，涉及通信领域，能够解决多个专有信令发送系统消息造成的网络时频资源浪费问题。其方法为：当网络侧设备接收到UE发送的系统消息请求，系统消息请求用于请求第一系统消息时，网络侧设备可向请求第一系统消息的UE发送组标识，或组标识和时频资源，以向请求第一系统消息的UE以组播方式发送第一系统消息，或网络侧设备广播第一系统消息。本发明实施例用于网络侧设备向UE发送On-demand SI。

Description

一种系统消息的发送方法和设备
本申请要求于2016年8月9日提交中国专利局、申请号为201610649587.8、发明名称为“一种系统消息的发送方法和设备”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及通信领域，尤其涉及一种系统消息的发送方法和设备。
背景技术
用户设备(User Equipment，UE)在进行小区搜索之后，UE即已与小区取得下行同步，可以得到小区的物理小区ID(Physical Cell ID，PCI)以及检测到帧的时隙。接着，UE需要获取到小区的系统消息(System Information)，以便接入该小区并在该小区内正确地工作。系统消息是小区级别的信息，即对接入该小区的所有UE生效。
通常，系统消息可以分为两类，一类为(重要)important系统消息(System Information，SI)，网络侧可以周期进行广播，且该类系统消息一般是空闲态UE必须要获取的，或者是UE接入小区时需要使用的，比如主信息块(Master Information Block，MIB)、接入信息、禁止信息等本小区相关的驻留信息等；另一类为基于需求发送的系统消息(On-demand SI)，网络侧广播该类消息的周期较长，或不周期广播，而是基于UE的需要进行发送，具体可通过专有信令发送给UE，比如与多媒体广播多播业务(Broadcast Multicast Service，MBMS)相关的系统消息等。
也就是说，网络侧仅主动广播important SI，当UE有需要获取On-demand SI需求时，会向网络侧发送请求并携带所需求的SI信息，而后网络侧会通过专有信令通知UE该On-demand SI。如此一来，网络侧是根据UE的需求广播On-demand SI，可以提高公共资源利用率，并减少UE侧耗电，但是，当有多个UE同时有相同的On-demand SI需求时，如果网络侧给该多个UE分别发送专有信令携带所需求的On-demand SI时就会占用更多的网络时频资源，造成网络时频资源浪费。
发明内容
本发明实施例提供一种系统消息的发送方法和设备，能够解决使用多个专有信令发送系统消息造成的网络时频资源浪费问题。
第一方面，提供一种系统消息的发送方法，包括：网络侧设备接收用户设备UE发送的系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息；网络侧设备向UE发送组标识，或网络侧设备向UE发送组标识和第一系统消息的时频资源；网络侧设备向UE发送第一系统消息。其中，网络侧设备可以为基站，当UE接收到基站发送的组标识(Group ID)或Group ID和时频资源时，UE可通过Group ID解扰时频资源，基站可通过组播方式向请求第一系统消息的UE发送第一系统消息。这样当多个UE请求第一系统消息时，基站不需通过专有信令向每个UE发送第一系统消息，可通过组播方式发送，相比通过专有信令发送第一系统消息，组播方式可节省网络时频资源。
在一种可能的设计中，方法还包括：网络侧设备发送第一广播消息，第一广播消息包括基于需求发送的系统消息的指示信息，指示信息包括第一系统消息的指示信息。例如基站可周期性地发送第一广播消息，以便新进入到基站覆盖的小区的UE及时接收到On-demand SI的指示信息，进而在需获取任一On-demand SI时向基站请求获取。
在一种可能的设计中，指示信息包括系统消息的序号，或指示信息包括系统消息的序号和标签(Value Tag，VT)，或指示信息包括系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，标签用于UE确定系统消息的内容是否变化，即UE可根据基站发送的系统消息中的VT和UE保存的该系统消息的VT进行对比，以确定是否更新该系统消息 的内容。
在一种可能的设计中，指示信息包括位图(bitmap)，位图中的各个比特的值用于指示各个比特对应的系统消息需UE通过发送系统消息请求获得。例如bitmap的各个比特位对应的值为0011，0表示对应的SI不需要通过系统消息请求从基站获取，1对应的SI需UE通过系统消息请求从基站获取。
在一种可能的设计中，系统消息请求包括第一系统消息的序号；或系统消息请求包括第一系统消息的序号和标签。当系统消息请求中包括VT时，基站可根据接收到的系统消息请求中的VT与基站侧保存的第一系统消息的VT进行对比，以确定是否向UE发送第一系统消息。
在一种可能的设计中，当系统消息请求包括第一系统消息的序号和标签时，在网络侧设备向UE发送组标识，或网络侧设备向UE发送组标识和第一系统消息的时频资源之前，方法还包括：网络侧设备确定UE发送的第一系统消息的标签与网络侧设备保存的第一系统消息的标签是否相同；若确定不同，则网络侧设备确定第一系统消息的内容已更新。这样，可节省网络资源，使得系统消息不重复发送。
在一种可能的设计中，方法还包括：若确定相同，则网络侧设备向UE发送确认ACK消息，以指示UE继续使用UE保存的第一系统消息。
在一种可能的设计中，网络侧设备向UE发送组标识包括：网络侧设备向UE预配置组标识和时频资源的对应关系，网络侧设备向请求第一系统消息的UE发送专有信令，专有信令包括组标识，以指示UE根据对应关系获得与组标识对应的时频资源后接收第一系统消息；网络侧设备向UE发送组标识和第一系统消息的时频资源包括：网络侧设备向请求第一系统消息的UE发送专有信令，专有信令包括组标识和第一系统消息的时频资源，以指示UE通过组标识和时频资源接收第一系统消息；或网络侧设备向请求第一系统消息的UE发送专有信令，专有信令包括组标识，并向UE发送第二广播消息，第二广播消息包括第一系统消息的时频资源，以指示UE通过组标识和时频资源接收第一系统消息。也就是说，基站可通过专有信令向UE发送Group ID，并通过专有信令或广播方式向UE发送时频资源，或者时频资源UE可通过Group ID与时频资源的对应关系获取。
在一种可能的设计中，每个基于需求发送的系统消息分别对应一个组标识，或至少两个基于需求发送的系统消息对应同一个公共组标识；第一系统消息包括第一系统消息的序号，或包括第一系统消息的序号和标签，或包括第一系统消息的序号和标签，以及至少两个系统消息的公共标签；第一系统消息还可以包括第一系统消息的有效时间，有效时间用于指示UE在获得第一系统消息达到有效时间时，重新从网络侧设备获取第一系统消息的内容。
在一种可能的设计中，方法还包括：网络侧设备根据寻呼周期向UE发送寻呼消息，寻呼消息用于指示UE根据寻呼消息获取最近一次更新的第一系统消息，寻呼消息包括网络侧设备最近一次更新的第一系统消息的内容、第一系统消息的标签以及第一系统消息的时频资源中的至少一个；其中，若第一系统消息对应公共标签，则寻呼消息还包括公共标签。其中，UE中可配置Group ID与寻呼周期的对应关系，UE在寻呼周期到达时醒来并接收基站发送的寻呼消息，以根据寻呼消息更新第一系统消息或第一系统消息的时频资源。
第二方面，提供一种系统消息的发送方法，包括：包括：用户设备UE向网络侧设备发送系统请求消息，系统请求消息用于向网络侧设备请求获取第一系统消息；UE接收网络侧设备发送的组标识，或UE接收网络侧设备发送的组标识和第一系统消息的时频资源；UE根据组标识和获取到的第一系统消息的时频资源接收网络侧设备发送的第一系统消息。
在一种可能的设计中，在UE发送系统消息请求之前，方法还包括：UE接收网络侧设备发送的第一广播消息，第一广播消息包括基于需求发送的系统消息的指示信息，指示信息包括第一系统消息的指示信息。
在一种可能的设计中，指示信息包括系统消息的序号，或指示信息包括系统消息的序 号和标签，或指示信息包括系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，标签用于UE确定系统消息的内容是否变化。
在一种可能的设计中，指示信息包括位图，位图中的各个比特的值用于指示各个比特对应的系统消息需UE通过发送系统消息请求获得。
在一种可能的设计中，系统消息请求包括第一系统消息的序号，或系统消息请求包括第一系统消息的序号和标签。
在一种可能的设计中，UE接收网络侧设备发送的组标识包括：UE接收网络侧设备发送的专有信令，专有信令包括组标识；UE根据组标识和获取到的第一系统消息的时频资源接收网络侧设备发送的第一系统消息包括：UE根据组标识和预配置的时频资源的对应关系获得第一系统消息的时频资源；UE根据第一系统消息的时频资源接收网络侧设备发送的第一系统消息。
在一种可能的设计中，UE接收网络侧设备发送的组标识和第一系统消息的时频资源包括：UE接收网络侧设备发送的专有信令，专有信令包括组标识和第一系统消息的时频资源；或UE接收网络侧设备发送的专有信令，专有信令包括组标识，并接收网络侧设备发送的第二广播消息，第二广播消息包括第一系统消息的时频资源。
在一种可能的设计中，当系统请求消息包括第一系统消息的序号和标签时，方法还包括：UE接收网络侧设备发送的确认消息，以指示UE继续使用UE保存的第一系统消息。
在一种可能的设计中，每个基于需求发送的系统消息分别对应一个组标识，或至少两个基于需求发送的系统消息对应同一个公共组标识；第一系统消息包括第一系统消息的序号，或包括第一系统消息的序号和标签，或包括第一系统消息的序号和标签，以及至少两个系统消息的公共标签；第一系统消息还可以包括第一系统消息的有效时间，有效时间用于指示UE在获得第一系统消息达到有效时间时，重新从网络侧设备获取第一系统消息的内容。
在一种可能的设计中，方法还包括：UE在寻呼周期到达时接收网络侧设备发送的寻呼消息，寻呼消息包括网络侧设备最近一次更新的第一系统消息的内容、第一系统消息的标签以及第一系统消息的时频资源中的至少一个；UE根据寻呼消息获取最近一次更新的第一系统消息。
第三方面，提供一种系统消息的发送方法，包括：网络侧设备接收用户设备UE发送的系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息；网络侧设备广播第一系统消息。这样，当有多个UE同时向基站请求On-demand SI时，基站不通过专有信令向UE发送该SI，而是通过广播方式向UE发送SI，可节省网络资源。
在一种可能的设计中，方法还包括：网络侧设备发送广播消息，广播消息包括基于需求发送的系统消息的指示信息，指示信息包括第一系统消息的指示信息。基站可周期性地发送广播消息，以使得新进入到基站的小区覆盖范围的UE及时接收到On-demand SI的指示信息。
在一种可能的设计中，指示信息包括系统消息的序号，或指示信息包括系统消息的序号和标签，或指示信息包括系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，标签用于UE确定系统消息的内容是否变化。例如UE将从基站接收到的系统消息的VT与UE当前保存的系统消息的VT进行对比，以确定是否更新系统消息的内容。
在一种可能的设计中，指示信息包括位图，位图中的各个比特的值用于指示各个比特对应的系统消息需UE通过发送系统消息请求获得。例如bitmap的各个比特的值为0011,0表示对应的系统消息不需要UE主动从基站请求获得，1表示对应的系统消息需UE从基站请求获得。
在一种可能的设计中，广播消息还包括系统消息的时频资源或发送时机，用于指示UE在时频资源或发送时机上获取系统消息；或广播消息还包括系统消息的监视时长，用于指示UE若在监视时长内接收到系统消息，则保存系统消息，若未接收到系统消息，则使UE 向网络侧设备请求广播系统消息。监视时长可由定时器实现，设置监视时长是由于可能有其它UE已经向基站请求获得系统消息，启动定时器的UE若在监视时长内接收到了系统消息，则不需要向基站发送系统消息请求。
在一种可能的设计中，系统消息请求包括第一系统消息的序号，或系统消息请求包括第一系统消息的序号和标签；其中，当系统消息请求包括第一系统消息的序号和标签时，在网络侧设备广播第一系统消息之前，方法还包括：网络侧设备确定UE发送的第一系统消息的标签与网络侧设备保存的第一系统消息的标签是否相同；若确定不同，则网络侧设备确定第一系统消息的内容已更新。这样在VT相同的情况下，基站便不需要向UE广播系统消息，也进一步节省了网络资源。
在一种可能的设计中，方法还包括：若确定相同，则网络侧设备向UE发送确认消息，以指示UE继续使用UE保存的第一系统消息。
在一种可能的设计中，第一系统消息包括第一系统消息的序号，或包括第一系统消息的序号和标签，或包括第一系统消息的序号和标签，以及至少两个系统消息的公共标签。这样，UE可根据接收到的第一系统消息中的VT确定接收到的第一系统消息与UE当前保存的第一系统消息的VT是否相同，以确定是否更新UE当前保存的第一系统消息。
在一种可能的设计中，在网络侧设备广播第一系统消息之前，方法还包括：网络侧设备使用无线网络临时标识RNTI对第一系统消息进行加扰。第一系统消息为On-demand SI，对应的加扰信息RNTI可与Important SI对应的加扰信息不同。
第四方面，提供一种系统消息的发送方法，包括：用户设备UE向网络侧设备发送系统消息请求，系统消息请求用于向网络侧设备请求获取第一系统消息；UE接收网络侧设备发送的第一广播消息，第一广播消息包括第一系统消息。
在一种可能的设计中，方法还包括：UE接收网络侧设备发送的第二广播消息，第二广播消息包括基于需求发送的系统消息的指示信息指示信息包括第一系统消息的指示信息。
在一种可能的设计中，指示信息包括系统消息的序号，或指示信息包括系统消息的序号和标签，或指示信息包括系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，标签用于UE确定系统消息的内容是否变化。
在一种可能的设计中，指示信息包括位图，位图中的各个比特的值用于指示各个比特对应的系统消息是需UE通过发送系统消息请求获得。
在一种可能的设计中，第二广播消息还包括系统消息的时频资源或发送时机；UE接收网络侧设备发送的第一广播消息包括：UE根据时频资源或发送时机接收网络侧设备发送的第一广播消息。
在一种可能的设计中，第二广播消息还包括系统消息的监视时长；在UE向网络侧设备发送系统消息请求之前，方法还包括：当UE确定需获取第一系统消息时，UE启动定时器，定时器时长为第一系统消息的监视时长；UE确定是否在监视时长内接收到第一系统消息；若确定否，则UE确定需向网络侧设备发送系统消息请求。
在一种可能的设计中，方法还包括：若确定是，则UE保存第一系统消息，并停止定时器计时。
在一种可能的设计中，第一广播消息还包括第一系统消息的序号和标签；方法还包括：UE在接收到第一广播消息之后，接收网络侧设备发送的第三广播消息，第三广播消息包括第一系统消息最近一次更新的序号和标签；UE确定保存的第一广播消息中第一系统消息的标签和第三广播消息中第一系统消息最近一次更新的标签是否相同；若确定不同，则UE根据第三广播消息更新第一系统消息的内容，并保存第三广播消息中第一系统消息的标签。
第五方面，提供一种网络侧设备，包括：接收单元，用于接收用户设备UE发送的系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息；发送单元，用于向UE发送组标识，或网络侧设备向UE发送组标识和第一系统消息的时频资源；发送单元，还用于向UE发送第一系统消息。
在一种可能的设计中，发送单元还用于：发送第一广播消息，第一广播消息包括基于需求发送的系统消息的指示信息，指示信息包括第一系统消息的指示信息。
在一种可能的设计中，指示信息包括系统消息的序号，或指示信息包括系统消息的序号和标签，或指示信息包括系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，标签用于UE确定系统消息的内容是否变化。
在一种可能的设计中，指示信息包括位图，位图中的各个比特的值用于指示各个比特对应的系统消息需UE通过发送系统消息请求获得。
在一种可能的设计中，系统消息请求包括第一系统消息的序号；或系统消息请求包括第一系统消息的序号和标签。
在一种可能的设计中，当系统消息请求包括第一系统消息的序号和标签时，还包括：确定单元，用于确定UE发送的第一系统消息的标签与网络侧设备保存的第一系统消息的标签是否相同；若确定不同，则确定第一系统消息的内容已更新。
在一种可能的设计中，发送单元还用于：若确定相同，则向UE发送确认ACK消息，以指示UE继续使用UE保存的第一系统消息。
在一种可能的设计中，发送单元用于：向UE预配置组标识和时频资源的对应关系，网络侧设备向请求第一系统消息的UE发送专有信令，专有信令包括组标识，以指示UE根据对应关系获得与组标识对应的时频资源后接收第一系统消息；或发送单元用于向请求第一系统消息的UE发送专有信令，专有信令包括组标识和第一系统消息的时频资源，以指示UE通过组标识和时频资源接收第一系统消息；或发送单元用于向请求第一系统消息的UE发送专有信令，专有信令包括组标识，并向UE发送第二广播消息，第二广播消息包括第一系统消息的时频资源，以指示UE通过组标识和时频资源接收第一系统消息。
在一种可能的设计中，每个基于需求发送的系统消息分别对应一个组标识，或至少两个基于需求发送的系统消息对应同一个公共组标识；第一系统消息包括第一系统消息的序号，或包括第一系统消息的序号和标签，或包括第一系统消息的序号和标签，以及至少两个系统消息的公共标签；第一系统消息还可以包括第一系统消息的有效时间，有效时间用于指示UE在获得第一系统消息达到有效时间时，重新从网络侧设备获取第一系统消息的内容。
在一种可能的设计中，发送单元还用于:根据寻呼周期向UE发送寻呼消息，寻呼消息用于指示UE根据寻呼消息获取最近一次更新的第一系统消息，寻呼消息包括网络侧设备最近一次更新的第一系统消息的内容、第一系统消息的标签以及第一系统消息的时频资源中的至少一个；其中，若第一系统消息对应公共标签，则寻呼消息还包括公共标签。
第六方面，提供一种用户设备UE，包括：发送单元，用于向网络侧设备发送系统请求消息，系统请求消息用于向网络侧设备请求获取第一系统消息；接收单元，用于接收网络侧设备发送的组标识，或UE接收网络侧设备发送的组标识和第一系统消息的时频资源；接收单元还用于根据组标识和获取到的第一系统消息的时频资源接收网络侧设备发送的第一系统消息。
在一种可能的设计中，接收单元还用于：接收网络侧设备发送的第一广播消息，第一广播消息包括基于需求发送的系统消息的指示信息，指示信息包括第一系统消息的指示信息。
在一种可能的设计中，指示信息包括系统消息的序号，或指示信息包括系统消息的序号和标签，或指示信息包括系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，标签用于UE确定系统消息的内容是否变化。
在一种可能的设计中，指示信息包括位图，位图中的各个比特的值用于指示各个比特对应的系统消息需UE通过发送系统消息请求获得。
在一种可能的设计中，系统消息请求包括第一系统消息的序号，或系统消息请求包括第一系统消息的序号和标签。
在一种可能的设计中，接收单元用于：接收网络侧设备发送的专有信令，专有信令包括组标识；或还包括获取单元，用于根据组标识和预配置的时频资源的对应关系获得第一系统消息的时频资源；接收单元用于：根据组标识和预配置的时频资源的对应关系获得第一系统消息的时频资源。
在一种可能的设计中，接收单元用于：接收网络侧设备发送的专有信令，专有信令包括组标识和第一系统消息的时频资源；或接收单元用于：接收网络侧设备发送的专有信令，专有信令包括组标识，并接收网络侧设备发送的第二广播消息，第二广播消息包括第一系统消息的时频资源。
在一种可能的设计中，当系统请求消息包括第一系统消息的序号和标签时，接收单元还用于：接收网络侧设备发送的确认消息，以指示UE继续使用UE保存的第一系统消息。
在一种可能的设计中，每个基于需求发送的系统消息分别对应一个组标识，或至少两个基于需求发送的系统消息对应同一个公共组标识；第一系统消息包括第一系统消息的序号，或包括第一系统消息的序号和标签，或包括第一系统消息的序号和标签，以及至少两个系统消息的公共标签；第一系统消息还可以包括第一系统消息的有效时间，有效时间用于指示UE在获得第一系统消息达到有效时间时，重新从网络侧设备获取第一系统消息的内容。
在一种可能的设计中，接收单元还用于：在寻呼周期到达时接收网络侧设备发送的寻呼消息，寻呼消息包括网络侧设备最近一次更新的第一系统消息的内容、第一系统消息的标签以及第一系统消息的时频资源中的至少一个；还包括获取单元，用于根据寻呼消息获取最近一次更新的第一系统消息。
第七方面，提供一种网络侧设备，包括：接收单元，用于接收用户设备UE发送的系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息；广播单元，用于广播第一系统消息。
在一种可能的设计中，广播单元，还用于发送广播消息，广播消息包括基于需求发送的系统消息的指示信息，指示信息包括第一系统消息的指示信息。
在一种可能的设计中，指示信息包括系统消息的序号，或指示信息包括系统消息的序号和标签，或指示信息包括系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，标签用于UE确定系统消息的内容是否变化。
在一种可能的设计中，指示信息包括位图，位图中的各个比特的值用于指示各个比特对应的系统消息需UE通过发送系统消息请求获得。
在一种可能的设计中，广播消息还包括系统消息的时频资源或发送时机，用于指示UE在时频资源或发送时机获取系统消息；或广播消息还包括系统消息的监视时长，用于指示UE若在监视时长内接收到系统消息，则保存系统消息，若未接收到系统消息，则使UE向网络侧设备请求广播系统消息。
在一种可能的设计中，系统消息请求包括第一系统消息的序号，或系统消息请求包括第一系统消息的序号和标签；其中，当系统消息请求包括第一系统消息的序号和标签时，还包括：确定单元，用于确定UE发送的第一系统消息的标签与网络侧设备保存的第一系统消息的标签是否相同；若确定不同，则确定第一系统消息的内容已更新。
在一种可能的设计中，发送单元，用于若确定相同，则向UE发送确认消息，以指示UE继续使用UE保存的第一系统消息。
在一种可能的设计中，第一系统消息包括第一系统消息的序号，或包括第一系统消息的序号和标签，或包括第一系统消息的序号和标签，以及至少两个系统消息的公共标签。
在一种可能的设计中，还包括加扰单元，用于使用无线网络临时标识RNTI对第一系统消息进行加扰。
第八方面，提供一种用户设备UE，包括：发送单元，用于向网络侧设备发送系统消息请求，系统消息请求用于向网络侧设备请求获取第一系统消息；接收单元，用于接收网络 侧设备发送的第一广播消息，第一广播消息包括第一系统消息。
在一种可能的设计中，接收单元还用于：接收网络侧设备发送的第二广播消息，第二广播消息包括基于需求发送的系统消息的指示信息，指示信息包括第一系统消息的指示信息。
在一种可能的设计中，指示信息包括系统消息的序号，或指示信息包括系统消息的序号和标签，或指示信息包括系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，标签用于UE确定系统消息的内容是否变化。
在一种可能的设计中，指示信息包括位图，位图中的各个比特的值用于指示各个比特对应的系统消息需UE通过发送系统消息请求获得。
在一种可能的设计中，第二广播消息还包括系统消息的时频资源或发送时机；接收单元用于：根据时频资源或发送时机接收网络侧设备发送的第一广播消息。
在一种可能的设计中，第二广播消息还包括系统消息的监视时长；在UE向网络侧设备发送系统消息请求之前，还包括定时单元，用于当UE确定需获取第一系统消息时，启动定时器，定时器时长为第一系统消息的监视时长；确定单元，用于确定是否在监视时长内接收到第一系统消息；若确定否，则确定需向网络侧设备发送系统消息请求。
在一种可能的设计中，定时单元还用于：若确定是，则保存第一系统消息，并停止定时器计时。
在一种可能的设计中，第一广播消息还包括第一系统消息的序号和标签；接收单元还用于：在接收到第一广播消息之后，接收网络侧设备发送的第三广播消息，第三广播消息包括第一系统消息最近一次更新的序号和标签；还包括确定单元，用于确定保存的第一广播消息中第一系统消息的标签和第三广播消息中第一系统消息最近一次更新的标签是否相同；若确定不同，则根据第三广播消息更新第一系统消息的内容，并保存第三广播消息中第一系统消息的标签。
第九方面，提供一种网络侧设备，包括：接收器，用于接收用户设备UE发送的系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息；发射器，用于接收用户设备UE发送的系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息；发射器还用于向UE发送第一系统消息。
在一种可能的设计中，发射器还用于发送第一广播消息，第一广播消息包括基于需求发送的系统消息的指示信息，指示信息包括第一系统消息的指示信息；其中，指示信息包括系统消息的序号，或指示信息包括系统消息的序号和标签，或指示信息包括系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，标签用于UE确定系统消息的内容是否变化；或指示信息包括位图，位图中的各个比特的值用于指示各个比特对应的系统消息需UE通过发送系统消息请求获得。
在一种可能的设计中，发射器用于向UE预配置组标识和时频资源的对应关系，网络侧设备向请求第一系统消息的UE发送专有信令，专有信令包括组标识，以指示UE根据对应关系获得与组标识对应的时频资源后接收第一系统消息；或发射器用于向请求第一系统消息的UE发送专有信令，专有信令包括组标识和第一系统消息的时频资源，以指示UE通过组标识和时频资源接收第一系统消息；或发射器用于向请求第一系统消息的UE发送专有信令，专有信令包括组标识，并向UE发送第二广播消息，第二广播消息包括第一系统消息的时频资源，以指示UE通过组标识和时频资源接收第一系统消息。
在一种可能的设计中，每个基于需求发送的系统消息分别对应一个组标识，或至少两个基于需求发送的系统消息对应同一个公共组标识；第一系统消息包括第一系统消息的序号，或第一系统消息包括第一系统消息的序号和标签，或第一系统消息包括第一系统消息的序号和标签，以及至少两个系统消息的公共标签；第一系统消息还可以包括第一系统消息的有效时间，有效时间用于指示UE在获得第一系统消息达到有效时间时，重新从网络侧设备获取第一系统消息的内容。
第十方面，提供一种用户设备UE，包括：发射器，用于向网络侧设备发送系统请求消息，系统请求消息用于向网络侧设备请求获取第一系统消息；接收器，用于接收网络侧设备发送的组标识，或UE接收网络侧设备发送的组标识和第一系统消息的时频资源；接收器还用于根据组标识和获取到的第一系统消息的时频资源接收网络侧设备发送的第一系统消息。
在一种可能的设计中，接收器还用于接收网络侧设备发送的第一广播消息，第一广播消息包括基于需求发送的系统消息的指示信息；指示信息包括第一系统消息的指示信息；其中，指示信息包括系统消息的序号，或指示信息包括系统消息的序号和标签，或指示信息包括系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，标签用于UE确定系统消息的内容是否变化；或指示信息包括位图，位图中的各个比特的值用于指示各个比特对应的系统消息需UE通过发送系统消息请求获得。
在一种可能的设计中，接收器用于接收网络侧设备发送的专有信令，专有信令包括组标识；或还包括处理器，用于根据组标识和预配置的时频资源的对应关系获得第一系统消息的时频资源；接收器用于根据第一系统消息的时频资源接收网络侧设备发送的第一系统消息。
在一种可能的设计中，接收器用于接收网络侧设备发送的专有信令，专有信令包括组标识和第一系统消息的时频资源；或接收器用于接收网络侧设备发送的专有信令，专有信令包括组标识，并接收网络侧设备发送的第二广播消息，第二广播消息包括第一系统消息的时频资源。
在一种可能的设计中，每个基于需求发送的系统消息分别对应一个组标识，或至少两个基于需求发送的系统消息对应同一个公共组标识；第一系统消息包括第一系统消息的序号，或第一系统消息包括第一系统消息的序号和标签，或第一系统消息包括第一系统消息的序号和标签，以及至少两个系统消息的公共标签；第一系统消息还可以包括第一系统消息的有效时间，有效时间用于指示UE在获得第一系统消息达到有效时间时，重新从网络侧设备获取第一系统消息的内容。
第十一方面，提供一种网络侧设备，包括：接收器，用于接收用户设备UE发送的系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息；发射器，用于广播第一系统消息。
在一种可能的设计中，发射器用于，发送广播消息，广播消息包括基于需求发送的系统消息的指示信息，指示信息包括第一系统消息的指示信息；其中，指示信息包括系统消息的序号，或指示信息包括系统消息的序号和标签，或指示信息包括系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，标签用于UE确定系统消息的内容是否变化；或指示信息包括位图，位图中的各个比特的值用于指示各个比特对应的系统消息需UE通过发送系统消息请求获得。
在一种可能的设计中，广播消息还包括系统消息的时频资源或发送时机，用于指示UE在时频资源或发送时机获取系统消息；或广播消息还包括系统消息的监视时长，用于指示UE若在监视时长内接收到系统消息，则保存系统消息，若未接收到系统消息，则使UE向网络侧设备请求广播系统消息。
第十二方面，提供一种用户设备UE，包括发射器，用于向网络侧设备发送系统消息请求，系统消息请求用于向网络侧设备请求获取第一系统消息；接收器，用于接收网络侧设备发送的第一广播消息，第一广播消息包括第一系统消息。
在一种可能的设计中，接收器还用于接收网络侧设备发送的第二广播消息，第二广播消息包括基于需求发送的系统消息的指示信息，指示信息包括第一系统消息的指示信息；其中，指示信息包括系统消息的序号，或指示信息包括系统消息的序号和标签，或指示信息包括系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，标签用于UE确定系统消息的内容是否变化；或指示信息包括位图，位图中的各个比特的值用于指示各 个比特对应的系统消息需UE通过发送系统消息请求获得。
在一种可能的设计中，在一种可能的设计中，第二广播消息还包括系统消息的时频资源或发送时机；接收器用于根据时频资源或发送时机接收网络侧设备发送的第一广播消息。
在一种可能的设计中，第二广播消息还包括系统消息的监视时长；还包括处理器，用于当UE确定需获取第一系统消息时，启动定时器，定时器时长为第一系统消息的监视时长；确定是否在监视时长内接收到第一系统消息；若确定否，则确定需向网络侧设备发送系统消息请求。
第十三方面，提供一种通信系统，包括如第九方面提供的网络侧设备和第十方面提供的UE。
第十四方面，提供一种通信系统，包括如十一方面提供的网络侧设备和第十二方面提供的UE。
第十五方面，提供一种通信系统，包括如第九方面提供的网络侧设备。
第十六方面，提供一种通信系统，包括如第十一方面提供的网络侧设备。
第十七方面，提供一种系统芯片，系统芯片包括输入输出接口，至少一个处理器、存储器和总线，输入输出接口用于设备接收用户设备UE发送的系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息；输入输出接口还用于向UE发送组标识，或网络侧设备向UE发送组标识和第一系统消息的时频资源；输入输出接口还用于向UE发送第一系统消息。
第十八方面，提供一种系统芯片，系统芯片包括输入输出接口、至少一个处理器、存储器和总线，输入输出接口用于向网络侧设备发送系统请求消息，系统请求消息用于向网络侧设备请求获取第一系统消息；输入输出接口还用于接收网络侧设备发送的组标识，或UE接收网络侧设备发送的组标识和第一系统消息的时频资源；输入输出接口还用于根据组标识和获取到的第一系统消息的时频资源接收网络侧设备发送的第一系统消息。
第十九方面，提供一种系统芯片，系统芯片包括输入输出接口、至少一个处理器、存储器和总线，输入输出接口用于接收用户设备UE发送的系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息；输入输出接口还用于广播第一系统消息。
第二十方面，提供一种系统芯片，系统芯片包括输入输出接口、至少一个处理器、存储器和总线，输入输出接口用于向网络侧设备发送系统消息请求，系统消息请求用于向网络侧设备请求获取第一系统消息；输入输出接口还用于接收网络侧设备发送的第一广播消息，第一广播消息包括第一系统消息。
第二十一方面，本发明实施例提供了一种计算机存储介质，用于存储上述网络侧设备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。
第二十二方面，本发明实施例提供了一种计算机存储介质，用于存储上述UE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。
第二十三方面，本发明实施例提供了一种计算机存储介质，用于存储上述网络侧设备所用的计算机软件指令，其包含用于执行上述第五方面所设计的程序。
第二十四方面，本发明实施例提供了一种计算机存储介质，用于存储上述UE所用的计算机软件指令，其包含用于执行上述第七方面所设计的程序。
第二十五方面，本发明实施例提供了一种系统消息的发送方法，包括：
用户设备向网络侧设备发送系统消息请求，该系统消息请求用于向该网络侧设备请求获取第一系统消息；该用户设备接收该网络侧设备广播的该第一系统消息。
其中，一种可行的设计为，该用户设备接收该网络侧设备发送的广播消息，该广播消息包括基于需求发送的系统消息的指示信息，该指示信息包括该第一系统消息的指示信息；其中，该指示信息包括该系统消息的序号，或该指示信息包括该系统消息的序号和标签，或该指示信息包括该系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，该标签用于该用户设备确定该系统消息的内容是否变化；或者，该指示信息包括位图，该 位图中的各个比特的值用于指示该各个比特对应的系统消息是否需要该用户设备通过发送系统消息请求获得。
其中，一种可行的设计为，该用户设备接收该网络侧设备发送的广播消息，该广播消息包括基于需求发送的系统消息的指示信息，该指示信息包括该第一系统消息的指示信息；该指示信息用于表明该用户设备是否需要发送系统消息请求来获得系统消息。
其中，一种可行的设计为，该指示信息包括位图，该位图包括至少一个比特，该位图中的各个比特的值表明该各个比特分别对应的系统消息是否需要该用户设备通过发送系统消息请求获得。
其中，一种可行的设计为，该广播消息还包括系统消息的时频资源或发送时机；该用户设备接收该网络侧设备广播的该第一系统消息包括：该用户设备根据该时频资源或该发送时机接收该网络侧设备广播的该第一系统消息。
其中，一种可行的设计为，该广播消息还包括该系统消息的监视时长，该方法还包括：若该用户设备未在该监视时长内接收到该第一系统消息，则该用户设备向该网络侧设备发送该系统消息请求。
其中，一种可行的设计为，该系统消息请求包括位图，该位图中的一个比特表示需要请求该第一系统消息。
其中，一种可行的设计为，该用户设备发送该系统消息请求后，该用户设备在该第一系统消息的周期性时频资源或发送时间中最近的时频资源或发送时机接收该第一系统消息。
其中，一种可行的设计为，该第一系统消息包括该第一系统消息的有效时间。
其中，一种可行的设计为，该用户设备UE向该网络侧设备发送系统消息请求之前，还包括：该UE读取最新的指示信息，以确定是否需要发送该系统消息请求获得该第一系统消息。
其中，一种可行的设计为，该用户设备向该网络侧设备发送系统消息请求之前，还包括：该用户设备在下一次接收到的该第一系统消息的时频资源或发送时机上未接收到该第一系统消息。该用户设备先确定在下一次接收到的第一系统消息的时频资源或发送时机上是否接收到第一系统消息。
第二十六方面，本发明实施例提供了一种系统消息的发送方法，包括：网络侧设备接收用户设备发送的系统消息请求，该系统消息请求用于向该网络侧设备请求获得第一系统消息；该网络侧设备广播该第一系统消息。
其中，一种可行的设计为，该网络侧设备发送广播消息，该广播消息包括基于需求发送的系统消息的指示信息，该指示信息包括该第一系统消息的指示信息；其中，该指示信息包括该系统消息的序号，或该指示信息包括该系统消息的序号和标签，或该指示信息包括该系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，该标签用于UE确定该系统消息的内容是否变化；或该指示信息包括位图，该位图中的各个比特的值用于指示该各个比特对应的系统消息是否需UE通过发送系统消息请求获得。
其中，一种可行的设计为，该网络侧设备发送广播消息，该广播消息包括基于需求发送的系统消息的指示信息，该指示信息包括该第一系统消息的指示信息，该指示信息包括该第一系统消息的指示信息；该指示信息用于指示该用户设备是否需要发送系统消息请求来获得系统消息。
其中，一种可行的设计为，该指示信息包括位图，该位图包括至少一个比特，该位图中的各个比特的值表明该各个比特分别对应的系统消息是否需要该用户设备通过发送系统消息请求获得。
其中，一种可行的设计为，该广播消息包括该系统消息的时频资源或发送时机，用于指示用户设备在该时频资源或该发送时机获取该系统消息。
其中，一种可行的设计为，该广播消息包括该系统消息的监视时长，
一种情况：在该监视时长内该用户设备接收到该系统消息，该用户设备保存该系统消息；或者，
另一种情况：在该监视时长内该用户设备未接收到该系统消息，该用户设备向该网络侧设备请求广播该系统消息。
其中，一种可行的设计为，该网络侧设备在广播的周期性的时频资源或发送时间里选择最近的时频资源或发送时机广播该第一系统消息。
其中，一种可行的设计为，该第一系统消息包括该第一系统消息的有效时间。
第二十七方面，本发明实施例提供了一种用户设备，包括：存储器、收发器和至少一个处理器，该存储器中存储有指令，该存储器、该收发器和该至少一个处理器通过线路互联，该收发器用于执行第二十五方面任一所述的方法中，在该用户设备进行的消息收发的操作；该至少一个处理器调用该存储器中存储的所述指令，执行第二十五方面中任一所述的方法中在该用户设备进行的处理操作。
第二十八方面，本发明实施例提供了一种网络侧设备，包括：存储器、收发器和至少一个处理器，该存储器中存储有指令，该存储器、该收发器和该至少一个处理器通过线路互联，该收发器用于执行第二十六方面任一所述的方法中，在该网络侧设备进行的消息收发的操作；该至少一个处理器调用该存储器中存储的该指令，执行第二十六方面中任一所述的方法中在该网络侧设备进行的处理操作。
第二十九方面，本发明实施例提供了一种芯片系统，应用于用户设备中，包括：该芯片系统包括至少一个处理器，存储器和接口电路，该接口电路负责该芯片系统与外界的信息交互，该存储器、该接口电路和该至少一个处理器通过线路互联，该至少一个存储器中存储有指令；该指令被该至少一个处理器执行，以进行如第二十五方面中任一所述的方法中该用户设备的操作。
第三十方面，本发明实施例提供了一种芯片系统，应用于网络侧设备中，包括：该芯片系统包括至少一个处理器，存储器和接口电路，该接口电路负责该芯片系统与外界的信息交互，该存储器、该接口电路和该至少一个处理器通过线路互联，该至少一个存储器中存储有指令；该指令被该至少一个处理器执行，以进行如第二十六方面中任一所述的方法中该网络侧设备的操作。
第三十一方面，本发明实施例提供了一种计算机可读存储介质，应用于用户设备中，该计算机可读存储介质中存储有指令，当该指令在计算设备上运行时，以进行如第二十五方面中任一所述的方法中该用户设备的操作。
第三十二方面，本发明实施例提供了一种计算机可读存储介质，应用于网络侧设备中，该计算机可读存储介质中存储有指令，当该指令在计算设备上运行时，以进行如第二十六方面中任一所述的方法中该网络侧设备的操作。
第三十三方面，本发明实施例提供了一种通信系统，包括：网络侧设备，和或，用户设备；其中，该网络侧设备为第二十八方面中任一该的网络侧设备，该用户设备为第二十七方面中任一所述的用户设备。
第三十四方面，本发明实施例提供了一种计算机程序产品，应用于用户设备中，该计算机程序包括一系列指令，当该指令被运行时，以进行如第二十五方面中任一所述的方法中该用户设备的操作。
第三十五方面，本发明实施例提供了一种计算机程序产品，应用于网络侧设备中，该计算机程序包括一系列指令，当该指令被运行时，以进行如第二十六方面中任一所述的方法中该网络侧设备的操作。
由此，网络侧设备在接收到UE发送的系统消息请求时，可通过向UE发送组标识，或组标识和时频资源，使得UE根据组标识解扰时频资源后接收网络侧设备发送的第一系统消息，这对于多个UE请求同一系统消息的情况，可使得网络侧设备不需要向每个UE发送专有信令传输系统消息，而是通过组播方式发送系统消息，相对于专有信令发送系统消息， 组播方式可节省网络时频资源；或者网络侧设备在接收到UE发送的系统消息请求时，可广播系统消息请求的第一系统消息，这对于更多个UE请求同一系统消息的情况，基站不通过专有信令向每个UE传输第一系统消息，而通过广播方式广播第一系统消息，不仅可使得当前需求第一系统消息的UE接收到，也可使得对第一系统消息感兴趣的其它UE提前接收到第一系统消息而不需要向基站请求获取，相对于专有信令传输第一系统消息占用较多的网络时频资源，以广播方式发送第一系统消息可节省网络时频资源。
附图说明
为了更清楚地说明本发明实施例的技术方案，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。
图1为本发明实施例提供的一种通信系统的示意图；
图2为本发明实施例提供的一种UE的结构示意图；
图3为本发明实施例提供的一种系统消息的发送方法流程示意图；
图4为本发明实施例提供的一种系统消息的发送方法流程示意图；
图5为本发明实施例提供的一种系统消息的发送方法流程示意图；
图6为本发明实施例提供的一种系统消息的发送方法流程示意图；
图7为本发明实施例提供的一种系统消息的发送方法流程示意图；
图7a为本发明实施例提供的一种UE获取系统消息的时频资源或发送时机的示意图；
图8为本发明实施例提供的一种系统消息的发送方法流程示意图；
图9为本发明实施例提供的一种网络侧设备的结构示意图；
图10为本发明实施例提供的一种UE的结构示意图；
图11为本发明实施例提供的一种网络侧设备的结构示意图；
图12为本发明实施例提供的一种UE的结构示意图；
图13为本发明实施例提供的一种网络侧设备的结构示意图；
图14为本发明实施例提供的一种网络侧设备的结构示意图；
图15为本发明实施例提供的一种UE的结构示意图；
图16为本发明实施例提供的一种UE的结构示意图。
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。
本发明实施例可用于在UE向网络(Network，NW)请求发送On-demand SI的场景，即该SI是在UE有需求时NW向UE发送的。
本发明实施例提供一种通信系统，如图1所示，包括至少一个UE和网络侧设备，该网络侧设备可以为基站，UE在基站的小区覆盖范围内，UE用于向网络侧设备发送系统消息请求，网络侧设备用于根据系统消息请求向UE以组播方式或广播方式发送UE请求的系统消息。
在本发明实施例中，UE可以为以下任意一种，并且UE可以是静态的，也可以是移动的。UE可以包括但不限于：站台(Station)、移动台(Mobile Station)、用户单元(Subscriber Unit)、个人电脑(Personal Computer)、膝上型电脑(Laptop Computer)、平板电脑(Tablet Computer)、上网本(Netbook)、终端(Terminal)、蜂窝电话(Cellular Phone)、手持设备(Handheld)、无绳电话(Cordless Phone)、个人数字助理(Personal Digital Assistant，缩写：PDA)、数据卡(Data Card)、通用串行总线(Universal Serial Bus，缩写：USB)插入设备、 移动WiFi热点设备(MiFi Devices)、智能手表、智能眼镜、无线调制解调器(英文：Modem)、无线路由器、无线本地环路(Wireless Local Loop，缩写：WLL)台等；基站(NodeB)可以为长期演进(Long Term Evolution，LTE)网络中的基站，或演进的通用陆地无线接入网络(UMTS Terrestrial Radio Access Network，UTRAN)网络中的基站，或新无线网络中的基站等。
以UE为手机为例，图2示出的是与本发明实施例相关的手机的部分结构的框图。参考图2，手机包括：射频(Radio Frequency，RF)电路210、电源220、处理器230、存储器240、输入单元250、显示单元260、传感器270、音频电路280等部件。本领域技术人员可以理解，图2中示出的手机结构并不构成对手机的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
基站(base station，BS)设备，也可称为基站，是一种部署在无线接入网用以提供无线通信功能的装置。例如在2G网络中提供基站功能的设备包括基地无线收发站(base transceiver station,BTS)和基站控制器(base station controller,BSC)，3G网络中提供基站功能的设备包括节点B(NodeB)和无线网络控制器(radio network controller,RNC)，在4G网络中提供基站功能的设备包括演进的节点B(evolved NodeB，eNB)，在5G网络中提供基站功能的设备包括新无线节点B(New Radio NodeB,gNB)，集中单元(Centralized Unit,CU),分布式单元(Distributed Unit)和新无线控制器，在WLAN中，提供基站功能的设备为接入点(Access Point，AP)。
本发明实施例提供一种系统消息发送方法、UE和网络侧设备，网络侧设备可以为上述基站，或其它任意网络侧设备，当UE需获取系统消息并向基站发送系统消息请求时，基站可根据用于请求系统消息的系统消息请求确定当前请求该系统的请求数量，当请求数量较少时，可以采用专有信令向每个UE发送系统消息；当请求数量较多时，可采用组播方式向多个请求同一系统消息的UE发送组标识(Group ID)、时频资源以及系统消息；当请求数量更多时，可采用广播方式向UE发送系统消息，这样当多个UE请求同一系统消息时，可采用组播或广播方式向UE发送系统消息，不需要向每个请求系统消息的UE通过专有信令分别发送系统消息，能够减少多个专有信令占用的网络时频资源。
本发明实施例提供一种系统消息发送方法，以NW侧以组播方式向发送系统消息请求的UE发送系统消息为例，对于网络侧设备，如图3所示，包括：
301、网络侧设备接收用户设备UE发送的系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息。
其中网络侧设备可以为上述基站，第一系统消息为任一On-demand SI。
302、网络侧设备向UE发送组标识，或网络侧设备向UE发送组标识和第一系统消息的时频资源。
Group ID用于在网络侧设备通过组播方式发送系统消息时，UE根据Group ID对接收到的系统消息的时频资源进行解扰。
可以理解的，组标识还可以是协议预定义的，或者可以根据协议预定义的规则获得的。
例如当基站根据请求第一系统消息的数量确定发送第一系统消息的方式为组播方式，则基站可向请求第一系统消息的UE发送Group ID，此时UE中可预先配置有Group ID与时频资源的对应关系，或向请求第一系统消息的UE发送Group ID和第一系统消息的时频资源。
303、网络侧设备向UE发送第一系统消息。
UE可根据Group ID解扰时频资源，并根据时频资源接收基站发送的第一系统消息，对于基站来说，不需要向请求第一系统消息的每个UE发送专有信令传输第一系统消息，而是以组播方式发送第一系统消息，可节省发送第一系统消息的网络时频资源。
可替换的，步骤302中网络侧设备还可以向UE发送Group ID和第一系统消息的接收时间指示信息，接收时间指示信息可以用于指示UE在某一时间范围，或某一时间点，或某一时间窗内接收第一系统消息；相应地，步骤303中UE根据Group ID解扰接收时间指示信息 指示的时间上的时频资源，并接收网络侧设备发送的第一系统消息。以NW侧以组播方式向发送系统消息请求的UE发送系统消息为例，对于UE，如图4所示，包括：
401、UE向网络侧设备发送系统请求消息，系统请求消息用于向网络侧设备请求获取第一系统消息。
402、UE接收网络侧设备发送的组标识，或UE接收网络侧设备发送的组标识和第一系统消息的时频资源。
可替换的，UE可以接收网络侧设备发送的Group ID和第一系统消息的接收时间指示信息，接收时间指示信息可以用于指示UE在某一时间范围，或某一时间点，或某一时间窗内接收第一系统消息。
可替换的，组标识还可以是协议预定义的，或者UE可以根据协议预定义的规则获得。
403、UE根据组标识和获取到的第一系统消息的时频资源接收网络侧设备发送的第一系统消息。
可替换的，UE可以根据Group ID解扰接收时间指示信息指示的时间上的时频资源，并接收网络侧设备发送的第一系统消息。
下面对本发明实施例进一步进行说明。
本发明实施例提供一种系统消息发送方法，以NW侧以组播方式向发送系统消息请求的UE发送系统消息，网络侧设备为基站为例，如图5所示，包括：
501、网络侧设备发送第一广播消息，第一广播消息包括基于需求发送的系统消息的指示信息。
下面以网络侧设备为基站进行说明。
基站对于important SI可通过广播发送至UE，而对于基于UE需求发送的On-demand SI，基站可广播On-demand SI的指示信息至UE，以指示UE需要发送系统消息请求获得该On-demand SI。以下实施例中涉及到的SI如未特别说明，均指On-demand SI。
指示信息可以是列表或位图的形式。
第一广播消息可以包括列表(On-demand SI list)或位图(bitmap)用于指示SI。
以指示信息包括列表来说，列表中可以包括系统消息的序号(number)，或包括系统消息的序号和标签(Value Tag，VT)，或包括系统消息的序号和标签，以及至少两个系统消息的公共标签(common VT)，其中标签用于UE确定系统消息的内容是否变化。
示例性的，当列表中包括SI的序号和标签时，如表1所示，指示信息可以为：
表1
On-demand SI num VT
SI 1 1
SI 2 3
表1中的On-demand SI num表示SI的序号，例如序号为SI1和SI2，VT表示SI相应的标签，例如为1和3。其中，列表中也可以不包括VT。当UE接收到该列表时，可以根据序号确定哪些SI需要通过发送系统消息请求获得，即在UE中配置有SI的序号和SI的对应关系，UE通过接收到的列表中SI的序号和该对应关系即可获知哪些SI需要通过发送系统消息请求获得。该对应关系可以基站预配置给UE的。
当列表中包括SI的序号、标签和公共标签时，假设SI的序号包括SI1、SI2、SI3和SI4，分为2组，包括SI group1和SI group 2，SI group1包括SI1和SI2，SI group2包括SI3和SI4，SI group1的common VT为0，SI group2的common VT为1，如表2所示，指示信息可以为：
表2-1
On-demand SI num VT
SI group 1 common VT 1
SI 1  
SI 2  
SI group 2 common VT 1
SI 3  
SI 4  
表2-2
On-demand SI num VT
SI group 1 common VT 1
SI 1 1
SI 2 3
SI group 2 common VT 1
SI 3 1
SI 4 3
由表2-2可知，当SI1的VT为1，SI2的VT为3，对应的SI group 1的common VT为1。如果SI1和SI2中的任一个SI的消息内容发生变化，其SI对应的VT也会变化，SI1和SI2对应的SI group 1的common VT也随之发生变化，例如SI对应的VT会累加1，SI group 1的common VT也会累加1；同样地，SI3和SI4中的任一个SI的消息内容发生变化，其SI对应的VT会变化，SI3和SI4对应的SI group 2的common VT也会随之变化。需要说明的是，当SI的消息内容发生变化使得对应的VT不断累加时，VT的取值可限定在一定的取值范围内，例如VT的取值范围为1～16，当SI的内容频繁变化，使得对应的VT的值变化至最大值16后，如果SI的内容再次改变，其对应的VT的值可以由16更新为VT的最小值1。
当第一广播消息包括bitmap用于指示On-demand SI时，bitmap中的各个比特的值用于指示各个比特对应的SI是否需要UE通过发送系统消息请求获得。例如bitmap可以为0011，各个比特依次对应SI1、SI2、SI3和SI4，其中，比特值为0表示对应的SI未广播，需UE通过发送系统消息请求获得，比特值为1表示对应的SI通过广播发送，UE可根据广播中的调度信息获取SI的时频资源并接收该SI。
需要说明的是，第一广播消息可以是周期性广播的，这是由于在基站的小区覆盖范围内，可能有新的UE进入到该小区覆盖范围内，使得新进入小区覆盖范围内的UE可及时获取到需要通过发送系统消息请求获取的SI的指示信息。
502、UE向网络侧设备发送系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息。
当UE接收到指示信息后，若UE需要获取指示信息指示的任一SI，则向基站发送系统消息请求，系统消息请求可以包括SI的序号。系统消息请求还可以包括位图，该位图可用于向网络侧设备请求获得第一系统消息，该位图中包含至少一个比特，各个比特可分别对应不同的系统消息，可用于指示是否请求获取各个比特对应的第一系统消息，比如，当其中的一个比特值为1时，则需要请求获取该比特对应的系统消息，当该比特为0时，则不需要请求获取该比特对应的系统消息，可以理解的是，也可以是当该比特为1时表示不需要请求获取对应的系统消息，而当该比特为0是表示需要请求获取对应的系统消息。如果UE已经保存有SI的消息内容，此次发送系统消息是为了向基站获取SI更新后的消息内容，那么系统消息请求可以包括SI的序号和VT。
例如UE请求获得的系统消息包括SI1和SI3，UE发送的系统消息请求(Request)的信息内容可以如表3-1所示：
表3-1
Request SI List
SI 1
SI 3
例如，UE请求获得的系统消息中包括SI 1和SI 3，如果网络侧设备基于请求发送的系统消息可以包括SI1，SI2，SI3和SI4，以位图最右侧的比特对应SI1，最左侧的比特对应SI4的对应方式为例，UE发送的系统消息请求(Request)的信息内容可以如表3-2所示：
表3-2
Request SI List
0101
可以理解的，位图和系统消息对应的表达方式，还可以是位图最右侧的比特对应SI4，最左侧的比特对应SI1的对应方式。
当系统消息请求包括SI的序号和VT时，UE发送的系统消息请求的信息内容可以如表4所示：
表4
Request SI List VT
SI 1 3
SI 3 4
当系统消息请求中携带SI的序号，未携带SI的VT时，在步骤502之后可直接进入步骤505；当系统消息请求中携带SI的序号和VT时，在步骤502之后可进入步骤503。
503、网络侧设备确定是否向UE发送第一系统消息，若确定是，则执行步骤505，若确定否，则执行步骤504。
若系统消息请求包括UE请求的第一系统消息SI的序号和VT，则基站可先确定UE发送的第一系统消息中SI的VT与基站保存的SI的VT是否相同，若相同，说明UE当前保存的第一系统消息的内容可用，可直接执行步骤504；若不同，则基站确定基站侧第一系统消息的内容已更新，基站需要发送新的第一系统消息的内至UE。举例来说，UE发送的系统消息请求中SI的序号为SI 3，VT为3，基站在接收到系统消息请求时，根据SI的序号SI 3获取基站当前保存的SI 3的VT，若基站保存的SI 3的VT为3，则基站确定向UE发送确认(Acknowledgement，ACK)消息，以指示UE当前保存的SI 3的内容有效，若基站保存的SI 3的VT为4，则说明基站侧对于SI 3的内容已更新，需要向UE发送更新后的SI 3。
504、网络侧设备向UE发送确认ACK消息，以指示UE继续使用UE保存的第一系统消息。
可以理解地，当UE的系统消息请求包含多个SI序号和VT时，网络侧设备发送的ACK消息中需要指示对应的SI序号，以使UE获知具体哪些SI的内容不需要更新。
505、网络侧设备向UE发送组标识，或网络侧设备向UE发送组标识和第一系统消息的时频资源。
可替换地，网络侧设备可以向UE发送Group ID和第一系统消息的接收时间指示信息，接收时间指示信息可以用于指示UE在某一时间范围，或某一时间点，或某一时间窗内接收第一系统消息。
可以理解地，如果组标识是协议预定义的，或者可以通过协议预定义的规则获得的，则不需要执行505步骤。本实施例中以网络侧设备向UE发送组标识为例，但并不限制组标识的其它获得方式。
Group ID用于在网络侧设备通过组播方式发送系统消息时，UE根据Group ID对接收到的系统消息的时频资源进行解扰。
第一种可实现的方式中，基站可以向UE预配置至少一个Group ID和时频资源的对应关系，当UE请求第一系统消息时，基站可以向请求第一系统消息的UE发送专有信令，专有信令包括为请求第一系统消息的UE分配的Group ID，以指示UE根据对应关系获获得与第一系统消息中的Group ID对应的时频资源，进而根据时频资源接收第一系统消息。也就是说，基站可预配置某些时频资源为On-demand SI的时频资源，并建立Group ID与时频资源的对应关系，UE在接收到Group ID后读取预配置的时频资源并尝试解调以获得第一系统消息；可替换的，基站可以在UE中预配置至少一个Group ID和接收时间指示信息的对应关系，当UE请求第一系统消息时，基站可以向请求第一系统消息的UE发送专有信令，专有信令包括为请求第一系统消息的UE分配的Group ID，以指示UE根据Group ID和接收时间指示信息的对应关系获得与第一系统消息中的Group ID对应的接收时间，进而根据接收时间接收第一系统消息。也就是说，基站可预配置某些接收时间指示信息为On-demand SI的接收时间，并建立Group ID与接收时间的对应关系，UE在接收到Group ID后读取预配置的接收时间并尝试解调以获得第一系统消息；
第二种可实现的方式中，基站可以向请求第一系统消息的UE发送专有信令，专有信令包括Group ID和第一系统消息的时频资源，以指示UE通过Group ID和时频资源接收基站待发送的第一系统消息；
第三种可实现的方式中，基站可以向请求第一系统消息的UE发送专有信令，专有信令包括Group ID，并向请求第一系统消息的UE发送第二广播消息，第二广播消息包括第一系统消息的时频资源，以指示UE通过Group ID和时频资源接收第一系统消息。例如基站可通过主信息块(Master Information Block，MIB)或调度块(scheduling blocks，SB)携带第一系统消息的时频资源，即第二广播消息可以为MIB或SB等，也可以应用其它的消息格式，本申请不做限定；
第四种可实现的方式中，基站可以向请求第一系统消息的UE发送专有信令，专有信令包括包括Group ID和第一系统消息的接收时间指示信息，接收时间指示信息可以用于指示UE在某一时间范围，或某一时间点，或某一时间窗内接收第一系统消息，以使UE通过Group ID和接收时间指示信息接收基站待发送的第一系统消息；
第五种可实现的方式中，基站可以向请求第一系统消息的UE发送专有信令，专有信令包括Group ID，并向请求第一系统消息的UE发送第二广播消息，第二广播消息包括第一系统消息的接收时间指示信息，以指示UE通过Group ID和接收时间指示信息接收第一系统消息。例如基站可通过主信息块MIB或调度块SB携带第一系统消息的接收时间指示信息，即第二广播消息可以为MIB或SB等，也可以应用其它的消息格式，本申请不做限定。
可选的，当基站在向UE发送Group ID，或发送Group ID和时频资源时，也可以在发送时频资源的消息中携带第一系统消息，即当基站在第一种可实现的方式中发送Group ID时，专有信令可包括Group ID和第一系统消息；当基站在第二种可实现的方式中发送专有信令时，专有信令包括Group ID、时频资源和第一系统消息；当基站在第三种可实现的方式中发送第二广播消息时，第二广播消息包括时频资源和第一系统消息。
506、网络侧设备向UE发送第一系统消息。
由于基站向请求第一系统消息的UE发送了Group ID，或Group ID和时频资源，或Group ID和接收时间指示信息，或者UE可以根据协议预定义或预定义的规则获得group ID，因此，基站可以以组播方式向请求第一系统消息的UE发送第一系统消息。
其中，每个基于需求发送的系统消息可分别对应一个Group ID，或至少两个基于需求 发送的系统消息对应同一个common Group ID。
网络侧设备发送的第一系统消息可以包括第一系统消息的序号，或包括第一系统消息的序号和VT，或包括第一系统消息的序号和VT以及至少两个系统消息的common VT。
可选的，网络侧设备发送的第一系统消息还可以包括第一系统消息的有效时间，有效时间用于指示当有效时间到期后，UE有获取该第一系统消息需求时，需要重新从网络侧设备获取新的第一系统消息的内容。其中，该有效时间还可以用于指示第一系统消息的时频资源的有效时间，例如当有效时间到期时，UE有获取第一系统消息需求时，可以根据预配置的时频资源的获取方式获取更新后的时频资源，例如更新后的时频资源为发送系统消息请求后的第k个子帧到第k+n个子帧上时频资源；或者UE在有效时间到期前，可以从基站获取新的时频资源。
507、UE根据组标识和获取到的第一系统消息的时频资源接收网络侧设备发送的第一系统消息。
本实施例中以网络侧设备通过专有信令携带group ID给UE为例，但并不限制组标识的其它获得方式。
若步骤505应用第一种可实现的方式，即专有信令中携带Group ID，则UE可根据Group ID与时频资源的对应关系获得时频资源，例如该Group ID对应的时频资源位于UE在发送系统消息请求之后或接收到专有信令之后的第k(k为正整数)个子帧，或时频资源位于UE在发送系统消息请求之后或接收到专有信令之后的第k到k+n(n为正整数)子帧窗内，当UE确定接收第一系统消息的时频资源后，便在该时频资源对应的时域和频域中接收第一系统消息；
若步骤505应用第二种可实现的方式，即专有信令携带Group ID和第一系统消息的时频资源，则UE根据接收到的Group ID解扰该时频资源，并根据解扰后的时频资源接收基站发送的第一系统消息；
若步骤505应用第三种可实现的方式，即专有信令携带Group ID，MIB或SB中携带第一系统消息的时频资源，UE可先读取MIB或SB中携带的时频资源，进而根据时频资源接收基站发送的第一系统消息，Group ID用于解扰基站发送给请求第一系统消息的UE的第一系统消息。
可选的，上述时频资源也可以替换为接收时间指示信息，即基站不发送频域信息给UE，当UE接收第一系统消息时，需先根据接收时间指示信息获取相应的时间范围，或时间点，或时间窗，而后根据Group ID和接收时间指示信息接收第一系统消息。
也就是说，若步骤505应用第四种可实现的方式，即专有信令携带Group ID和第一系统消息的接收时间指示信息，则UE根据接收到的Group ID解扰该接收时间指示信息上的时频资源，并根据解扰后的时频资源接收基站发送的第一系统消息；若步骤505应用第五种可实现的方式，即专有信令携带Group ID，MIB或SB中携带第一系统消息的接收时间指示信息，UE可先获得MIB或SB中携带的接收时间指示信息，进而根据时频资源接收基站发送的第一系统消息。
其中，当系统请求消息请求的第一系统消息包括至少两个系统消息时，例如包括SI 1和SI 2，第一系统消息中携带SI 1和SI 2的common Group ID，UE便可用该common Group ID解扰第一系统消息对应的时频资源，当然，也可以是SI 1和SI 2分别对应一个Group ID，本申请不做限定。
此外，在UE中还可以预配置Group ID与寻呼周期(paging)的对应关系，当UE接收到Group ID时，UE可根据该对应关系获得相应的寻呼周期。即当UE在到达寻呼周期时，接收基站发送的寻呼消息，并通过Group ID解扰接收到的寻呼消息。
网络侧设备还可以根据寻呼周期向UE发送寻呼消息，寻呼消息用于指示UE根据寻呼消息获取最近一次更新的第一系统消息，寻呼消息包括网络侧设备最近一次更新的第一系 统消息的序号、第一系统消息的内容、第一系统消息的VT以及第一系统消息的时频资源中的至少一个。当寻呼消息中携带第一系统消息的内容时，UE直接更新当前存储的第一系统消息。当寻呼消息中携带第一系统消息的VT时，UE可将接收到的VT与UE当前保存的第一系统消息的VT进行比对，若不同，则UE确定第一系统消息的内容已更新，UE清空当前存储的第一系统消息的内容，当有第一系统消息需求时，UE发起系统消息请求，向网络侧设备请求新的第一系统消息。当寻呼消息中携带第一系统消息的时频资源时，UE可获得寻呼消息中第一系统消息的时频资源，便于UE根据新的时频资源接收新的第一系统消息。
可选的，寻呼消息中还可以携带第一系统消息对应的common VT，例如第一系统消息包括SI 3和SI 4，当UE接收到寻呼消息时，对比发现common VT变化，获知SI 3和/或SI 4中的消息内容发生变化，进一步的，UE可根据网络侧设备发送的MIB或SB中的调度信息确定SI 3和/或SI 4的消息内容是否变化，调度信息中包括SI 3和SI 4的VT，UE可根据SI 3和SI4的VT与UE当前保存的SI 3和/或SI 4的VT进行对比确定SI 3和/SI 4的消息内容是否变化，并向基站请求获得变化的系统消息。
可选的，当UE接收到第一系统消息时，也可以删除第一系统消息对应的Group ID，并在UE下一次需获取第一系统消息时，向基站再次发送系统消息请求以获取第一系统消息更新后的消息内容。
由此，本发明实施例提供一种系统消息发送方法，当UE需获取任一On-demand SI即第一系统消息时向网络侧设备发送系统消息请求，而后从网络侧设备接收为UE分配的组标识，或组标识和时频资源，或组标识和接收时间指示信息，使UE根据组标识以及获取的时频资源或接收时间指示信息从网络侧设备接收第一系统消息，由于网络侧设备为请求第一系统消息的UE分配了组标识，当请求第一系统消息的UE数量较多时，不是如现有技术中网络侧设备向每个请求第一系统消息的UE通过专有信令发送，本申请中，网络侧设备由于向UE发送了组标识，或组标识以及时频资源，或组标识和接收时间指示信息，使得网络侧设备可通过组播方式向UE发送第一系统消息，UE可根据组标识以及获取到的时频资源从网络侧设备接收第一系统消息，减少了网络侧设备向每个UE发送携带系统消息的专有信令占用的网络时频资源。
本发明实施例还提供一种系统消息发送方法，以NW侧以广播方式发送系统消息为例，对网络侧设备来说，如图6所示，包括:
601、网络侧设备接收用户设备UE发送的系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息。
网络侧设备可以为基站，第一系统消息可以为任一On-demand SI。
602、网络侧设备广播第一系统消息。
例如当网络侧设备根据一段时间内请求第一系统消息的数量确定需广播第一系统消息时，网络侧设备广播第一系统消息，这样，请求第一系统消息的UE可接收并保存第一系统消息，对第一系统消息感兴趣的UE也可以接收并保存，以备后续可能使用，不需要向现有技术中网络侧设备向每个请求第一系统消息的UE发送专有信令传输第一系统消息，而是以广播方式发送，可节省网络时频资源。
可替换的，当网络侧设备根据一段时间内请求第一系统消息的数量确定需广播第一系统消息时，网络侧设备可以先广播第一系统消息的时频资源，而后在广播的时频资源上广播第一系统消息，使得请求第一系统消息的UE在网络侧设备广播的第一系统消息的时频资源上接收并保存第一系统消息；
可替换的，网络侧设备可以周期性地广播第一系统消息的时频资源或发送时机，当网络侧设备根据一段时间内请求第一系统消息的数量确定需广播第一系统消息时，网络侧设备便在广播的周期性的时频资源或发送时间里选择最近的时频资源或发送时机广播第一系统消息，请求第一系统消息的UE可以在网络侧设备广播的第一系统消息的周期性时频资源或发送时机中选取最近的时频资源或发送时机接收并保存第一系统消息。
以NW侧以广播方式发送系统消息为例，对UE来说，如图7所示，包括:
701、UE向网络侧设备发送系统消息请求，系统消息请求用于向网络侧设备请求获取第一系统消息。
702、UE接收网络侧设备发送的第一广播消息，第一广播消息包括第一系统消息。
可替换的，UE在接收到网络侧设备广播的第一系统消息的时频资源后，在该时频资源上接收网络侧设备广播的第一系统消息；
可替换的，在UE接收网络侧设备周期性地广播第一系统消息的时频资源或发送时机的情况下，若UE需获取第一系统消息时，UE向网络侧设备发送系统消息请求，并根据接收到的网络侧设备广播的周期性的第一系统消息时频资源或发送时机里选择最近的时频资源或发送时机接收并保存第一系统消息。如图7a中的图A所示，T0、T3和T6表示第一系统消息周期性的时频资源或发送时机，当UE在T0与T3之间的时间段内需获取第一系统消息时，向基站发送系统消息请求，UE可在下一周期性的时频资源或发送时机T3接收到基站发送的第一系统消息SI；
可替换的，在UE接收网络侧设备周期性地广播第一系统消息的时频资源或发送时机的情况下，若UE需获取第一系统消息时，UE先确定在下一次接收到的第一系统消息的时频资源或发送时机上是否接收到第一系统消息，若接收到，则UE保存第一系统消息，若未接收到，则UE向网络侧设备发送系统消息请求，并在网络侧设备下下一次周期性发送的第一系统消息的时频资源或发送时机接收并保存第一系统消息。如图7a中的图B所示，T0、T3和T6表示第一系统消息周期性的时频资源或发送时机，若UE在T0与T3之间的时间段需获取第一系统消息时，UE可先等待一段时间(如图7a中的图B中的虚线所表示的时间段)确定是否在下一周期接收到的时频资源或发送时机接收到第一系统消息SI，若接收到则保存，若未接收到，则在b点表示的时刻发送系统消息请求，并基站下一周期T6处表示的时频资源或发送时机接收第一系统消息SI。
下面对NW侧以广播方式发送系统消息进一步进行说明。
本发明实施例还提供一种系统消息发送方法，以NW侧以广播方式发送系统消息为例，如图8所示，包括:
801、网络侧设备发送广播消息，广播消息包括基于需求发送的系统消息的指示信息。
步骤801的实现方式与步骤501类似，此处不再赘述。其中步骤501中的第一广播消息相当于本步骤801中的广播消息。
与步骤501不同的是，步骤801中的广播消息还可以包括SI的时频资源或发送时机，用于指示UE根据时频资源或发送时机获取SI；可选的，SI的时频资源或发送时机可以是网络侧设备周期性广播的。时频资源可以是发送SI的系统消息窗口，发送时机可以是发送周期；
或者，步骤801中的广播消息还可以包括SI的监视时长，用于指示UE若在监视时长内接收到SI，则保存SI，若未接收到SI，则UE向网络侧设备请求广播该SI。
802、UE向网络侧设备发送系统消息请求，系统消息请求用于向网络侧设备请求获得第一系统消息。
步骤802的UE向网络侧设备发送系统消息请求的方式可以与步骤502类似，此处不再赘述。
若步骤801中的广播消息包括接收到网络侧设备周期性广播的时频资源或发送时机，则UE向网络侧设备发送系统消息请求，以请求第一系统消息，并在最近一次接收到的时频资源或发送时机接收网络侧设备发送的第一系统消息。
或者，若步骤801中的广播消息包括接收到网络侧设备周期性广播的时频资源或发送时机，则UE先确定在最近一次接收到的时频资源或发送时机是否接收到网络侧设备发送的第一系统消息，若接收到，则UE保存第一系统消息；若未接收到，则UE向网络侧设备发送系统消息请求，以请求第一系统消息。
若广播消息包括On-demand SI的监视时长，则UE需获取任一On-demand SI即第一系统 消息时，可先启动定时器，定时时长为需获取的SI的监视时长，在定时器超时之前，UE监视是否接收到网络侧设备发送了该SI，可选的，UE接收到的网络侧设备广播的时频资源或发送时机用于可用于接收该SI，若UE接收到该SI，则UE保存该SI并停止定时器计时，若UE未接收到该SI，则UE向网络侧设备发送系统消息请求，系统消息请求中可以包括第一系统消息的序号，或系统消息请求包括第一系统消息的序号和VT。可以理解的是，作为一种可选方式，UE需获取任一On-demand SI即第一系统消息时，可以理解为是在UE发送系统消息请求后。可以理解的是，作为一种可选方式，UE在启动定时器之前，可先通过网络侧设备广播的指示信息确定该第一系统消息是否是通过广播发送的，若确定是，则UE启动定时器。
803、网络侧设备确定是否广播第一系统消息，若确定是，则执行步骤805，若确定否，则执行步骤804。
若系统消息请求包括UE请求的第一系统消息SI的序号和VT，则基站可先确定UE发送的第一系统消息中SI的VT与基站保存的SI的VT是否相同，若相同，说明UE当前保存的第一系统消息的内容可用，可直接执行步骤804；若不同，则基站确定基站侧第一系统消息的内容已更新，基站需要发送新的第一系统消息的内容至UE。举例来说，UE发送的系统消息请求中SI的序号为SI 3，VT为3，基站在接收到系统消息请求时，根据SI的序号SI 3获取基站当前保存的SI 3的VT，若基站保存的SI 3的VT为3，则基站确定向UE发送ACK消息，以指示UE当前保存的SI 3的内容有效，若基站保存的SI 3的VT为4，则说明基站侧对于SI 3的内容已更新，需要向UE发送更新后的SI 3。
804、网络侧设备向UE发送确认消息，以指示UE继续使用UE保存的第一系统消息。
确认消息可以是ACK消息，可以理解的是，当UE发送的系统消息请求中包含多个SI序号和VT时，网络侧设备发送的ACK消息中需要知识对应的SI序号，以使UE确定哪些系统消息不需要更新。
805、网络侧设备广播第一系统消息。
一种可实现的方式中，当网络侧设备确定需广播第一系统消息时，网络侧设备广播第一系统消息；
另一种可实现的方式中，当网络侧设备确定需广播第一系统消息时，网络侧设备先广播第一系统消息的时频资源或发送时机，而后广播第一系统消息，使得UE根据接收到的时频资源或发送时机接收网络侧设备发送的第一系统消息；
再一种可实现的方式中，根据步骤802可知，若网络侧设备周期性地广播第一系统消息的时频资源或发送时机，且UE需获取第一系统消息时，UE会请求网络侧设备发送第一系统消息，此时网络侧设备广播第一系统消息，UE在请求第一系统消息后最近的时频资源或发送时机接收网络侧设备广播的第一系统消息；
再一种可实现的方式中，根据步骤802可知，若网络侧设备周期性地广播第一系统消息的时频资源或发送时机，且UE需获取第一系统消息时，UE在最近一次接收到的时频资源或发送时机上未接收到第一系统消息，则UE会请求网络侧设备发送第一系统消息，此时网络侧设备广播第一系统消息，UE在请求第一系统消息后接收到的时频资源或发送时机接收网络侧设备广播的第一系统消息。
该第一系统消息可以包括第一系统消息的序号，或包括第一系统消息的序号和VT，或包括第一系统消息的序号和VT以及至少两个系统消息的common VT。
在基站广播第一系统消息之前，基站可以使用无线网络临时标识(Radio Network Temporary Identifier，RNTI)对第一系统消息进行加扰。为了与周期性发送的SI即Important SI使用的RNTI区分，On-demand SI采用的On-demand SI RNTI可与Important SI采用的RNTI不同。On-demand SI RNTI可以是UE侧固有的，也可以是基站广播给UE的，本申请不做限定。
由于当UE有On-demand SI需求时，UE通过基站广播的指示信息，获知基站采取广播 方式广播该SI，这对于没有存储该SI但是需获取该SI的UE来说，若该UE已经启动了定时器且定时器未超时，则UE接收该SI并保存，并停止定时器计时；对于没有存储该SI也没需求(即暂时未启动定时器但对该SI感兴趣)的UE来说，若UE接收到该SI，则UE可接收并保存该SI，以备后续可能使用。
其中，对于UE来说，UE在接收到基站发送的SI时，UE可根据SI中携带的VT确定UE当前保存的SI的内容是否需更新，具体可根据接收到的SI中的VT与UE当前保存的SI对应的VT进行对比，若相同，则不需更新，UE继续使用当前保存的SI，若不同，则将SI的内容更新为从基站接收到的SI的内容。
此外，当基站广播第一系统消息之后，基站需更新步骤801中广播的指示信息。例如基站根据已广播的第一系统消息更新广播的指示信息。
当指示信息为列表时，基站可将第一系统消息的指示信息从列表中删除。示例性的，在基站广播第一系统消息之前，若列表中包括SI 1和SI 2的序号和VT时，如表5所示，指示信息为：
表5
On-demand SI num VT
SI 1 1
SI 2 3
若基站广播了第一系统消息SI 2时，基站需向UE广播新的指示信息，指示信息中删除了已广播的第一系统消息SI 2的序号和VT，更新后的指示信息如表6所示：
表6
On-demand SI num VT
SI 1 1
相应地，如果基站需取消广播第一系统消息SI 2时，即SI 2的消息内容不变时，也可以再次发送指示信息如表7所示：
表7
On-demand SI num VT
SI 1 1
SI 2 当前VT
当广播消息的指示信息为bitmap，即通过bitmap指示On-demand SI时，bitmap中的各个比特的值用于指示各个比特对应的SI是否需要UE通过发送系统消息请求获得。例如bitmap可以为0011，各个比特依次对应SI1、SI2、SI3和SI4，其中，比特值为0表示对应的SI未广播，需UE通过发送系统消息请求获得，比特值为1表示对应的SI通过广播发送，UE可直接根据广播中的调度信息获取SI的时频资源并接收该SI。当基站已广播第一系统消息SI 2时，基站需要更新广播的bitmap为0111；相应地，如果基站取消广播第一系统消息SI2时，需要再次更新广播的bitmap为0011。
UE需要获取系统消息时，需要读取最新的bitmap，以确定bitmap中的各个比特的值用于指示各个比特对应的SI是否需要UE通过发送系统消息请求获得。如果是，则发起系统消息请求。具体步骤可以参考前述描述。
可以理解的，bitmap的改变可以不通过寻呼消息通知UE，UE仅在需要获得系统消息时，才读取最新的bitmap。
本申请实施例还提出了一种技术方案，包括：网络侧设备向用户设备UE发送寻呼消息；所述寻呼消息用于指示所述UE根据寻呼消息获取最近一次更新的第一系统消息，所述寻呼消息包括网络侧设备最近一次更新的所述第一系统消息的序号、所述第一系统消息的内容、所述第一系统消息的标签值以及所述第一系统消息的时频资源中的至少一个。具体的，一种可行的设计如：网络侧设备可以根据寻呼周期向UE发送寻呼消息，寻呼消息用于指示UE根据寻呼消息获取最近一次更新的第一系统消息，寻呼消息包括网络侧设备最近一次更新的第一系统消息的序号、第一系统消息的内容、第一系统消息的VT以及第一系统消息的时频资源中的至少一个。具体地，第一系统消息的序号可以是通过列表指示，也可以通过位图中对应的比特指示。当寻呼消息中携带第一系统消息的内容时，UE直接更新当前存储的第一系统消息。当寻呼消息中携带第一系统消息的VT时，UE可将接收到的VT与UE当前保存的第一系统消息的VT进行比对，若不同，则UE确定第一系统消息的内容已更新，UE清空当前存储的第一系统消息的内容，当有第一系统消息需求时，UE发起系统消息请求，向网络侧设备请求新的第一系统消息。当寻呼消息中携带第一系统消息的时频资源时，UE可获得寻呼消息中第一系统消息的时频资源，便于UE根据新的时频资源接收新的第一系统消息。
可选的，寻呼消息中还可以携带第一系统消息对应的common VT，例如第一系统消息包括SI 3和SI 4，当UE接收到寻呼消息时，对比发现common VT变化，获知SI 3和/或SI 4中的消息内容发生变化，进一步的，UE可根据网络侧设备发送的MIB或SB中的调度信息确定SI 3和/或SI 4的消息内容是否变化，调度信息中包括SI 3和SI 4的VT，UE可根据SI 3和SI 4的VT与UE当前保存的SI 3和/或SI 4的VT进行对比确定SI 3和/SI 4的消息内容是否变化，并向基站请求获得变化的系统消息。
本申请还提供了如下实施例：
实施例1：一种系统消息的发送方法，包括：网络侧设备接收用户设备UE发送的系统消息请求，该系统消息请求用于向该网络侧设备请求获得第一系统消息；该网络侧设备向该UE发送组标识，或该网络侧设备向该UE发送该组标识和该第一系统消息的时频资源；该网络侧设备向该UE发送该第一系统消息。
实施例2：根据实施例1的方法，该方法还包括：该网络侧设备发送第一广播消息，该第一广播消息包括基于需求发送的系统消息的指示信息，该指示信息包括该第一系统消息的指示信息；其中，该指示信息包括该系统消息的序号，或该指示信息包括该系统消息的序号和标签，或该指示信息包括该系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，该标签用于UE确定该系统消息的内容是否变化；或者，该指示信息包括位图，该位图中的各个比特的值用于指示该各个比特对应的系统消息需UE通过发送系统消息请求获得。
实施例3：根据实施例1或2所描述的方法，该网络侧设备向该UE发送组标识，包括：该网络侧设备向该UE预配置组标识和时频资源的对应关系，该网络侧设备向请求该第一系统消息的UE发送专有信令，该专有信令包括该组标识，以指示该UE根据该对应关系获得与该组标识对应的时频资源后接收该第一系统消息；该网络侧设备向该UE发送该组标识和该第一系统消息的时频资源包括：该网络侧设备向请求该第一系统消息的UE发送专有信令，该专有信令包括该组标识和该第一系统消息的时频资源，以指示该UE通过该组标识和该时频资源接收该第一系统消息；或该网络侧设备向请求该第一系统消息的UE发送专有信令，该专有信令包括该组标识，并向该UE发送第二广播消息，该第二广播消息包括该第一系统消息的时频资源，以指示该UE通过该组标识和该时频资源接收该第一系统消息。
实施例4：根据实施例1-3任一项所描述的网络侧设备，每个基于需求发送的系统消息分别对应一个组标识，或至少两个基于需求发送的系统消息对应同一个公共组标识；该第一系统消息包括该第一系统消息的序号，或该第一系统消息包括该第一系统消息的序号 和标签，或该第一系统消息包括该第一系统消息的序号和标签，以及至少两个系统消息的公共标签；该第一系统消息还可以包括该第一系统消息的有效时间，该有效时间用于指示该UE在获得该第一系统消息达到该有效时间时，重新从该网络侧设备获取该第一系统消息的内容。
实施例5：一种网络侧设备，包括：接收单元，用于接收用户设备UE发送的系统消息请求，该系统消息请求用于向该网络侧设备请求获得第一系统消息；发送单元，用于向该UE发送组标识，或该网络侧设备向该UE发送该组标识和该第一系统消息的时频资源；该发送单元，还用于向该UE发送该第一系统消息。
实施例6：根据实施例5所描述的网络侧设备，该发送单元还用于：发送第一广播消息，该第一广播消息包括基于需求发送的系统消息的指示信息；该指示信息包括该第一系统消息的指示信息；其中，该指示信息包括该系统消息的序号，或该指示信息包括该系统消息的序号和标签，或该指示信息包括该系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，该标签用于UE确定该系统消息的内容是否变化；或该指示信息包括位图，该位图中的各个比特的值用于指示该各个比特对应的系统消息需UE通过发送系统消息请求获得。
实施例7：根据实施例5或6所描述的网络侧设备，该发送单元用于：向该UE预配置组标识和时频资源的对应关系，该网络侧设备向请求该第一系统消息的UE发送专有信令，该专有信令包括该组标识，以指示该UE根据该对应关系获得与该组标识对应的时频资源后接收该第一系统消息；或该发送单元用于向请求该第一系统消息的UE发送专有信令，该专有信令包括该组标识和该第一系统消息的时频资源，以指示该UE通过该组标识和该时频资源接收该第一系统消息；或该发送单元用于向请求该第一系统消息的UE发送专有信令，该专有信令包括该组标识，并向该UE发送第二广播消息，该第二广播消息包括该第一系统消息的时频资源，以指示该UE通过该组标识和该时频资源接收该第一系统消息。
实施例8：根据实施例5-7任一项所描述的网络侧设备，每个基于需求发送的系统消息分别对应一个组标识，或至少两个基于需求发送的系统消息对应同一个公共组标识；该第一系统消息包括该第一系统消息的序号，或该第一系统消息包括该第一系统消息的序号和标签，或该第一系统消息包括该第一系统消息的序号和标签，以及至少两个系统消息的公共标签；该第一系统消息还可以包括该第一系统消息的有效时间，该有效时间用于指示该UE在获得该第一系统消息达到该有效时间时，重新从该网络侧设备获取该第一系统消息的内容。
实施例9：一种系统消息的发送方法，包括：用户设备UE向网络侧设备发送系统请求消息，该系统请求消息用于向该网络侧设备请求获取第一系统消息；该UE接收该网络侧设备发送的组标识，或该UE接收该网络侧设备发送的该组标识和该第一系统消息的时频资源；该UE根据该组标识和获取到的该第一系统消息的时频资源接收该网络侧设备发送的该第一系统消息。
实施例10：根据实施例9所描述的方法，在该UE发送该系统消息请求之前，该方法还包括：该UE接收该网络侧设备发送的第一广播消息，该第一广播消息包括基于需求发送的系统消息的指示信息；该指示信息包括该第一系统消息的指示信息；其中，该指示信息包括该系统消息的序号，或该指示信息包括该系统消息的序号和标签，或该指示信息包括该系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，该标签用于UE确定该系统消息的内容是否变化；或该指示信息包括位图，该位图中的各个比特的值用于指示该各个比特对应的系统消息需UE通过发送系统消息请求获得。
实施例11：根据实施例9或10所描述的方法，该UE接收该网络侧设备发送的组标识包括：该UE接收该网络侧设备发送的专有信令，该专有信令包括该组标识；该UE根据该组标识和获取到的该第一系统消息的时频资源接收该网络侧设备发送的该第一系统 消息包括：该UE根据该组标识和预配置的时频资源的对应关系获得该第一系统消息的时频资源；该UE根据该第一系统消息的时频资源接收该网络侧设备发送的该第一系统消息。
实施例12：根据实施例9或10所描述的方法，该UE接收该网络侧设备发送的组标识和该第一系统消息的时频资源包括：该UE接收该网络侧设备发送的专有信令，该专有信令包括该组标识和该第一系统消息的时频资源；或该UE接收该网络侧设备发送的专有信令，该专有信令包括该组标识，并接收该网络侧设备发送的第二广播消息，该第二广播消息包括该第一系统消息的时频资源。
实施例13：一种用户设备UE，包括：发送单元，用于向网络侧设备发送系统请求消息，该系统请求消息用于向该网络侧设备请求获取第一系统消息；接收单元，用于接收该网络侧设备发送的组标识，或该UE接收该网络侧设备发送的该组标识和该第一系统消息的时频资源；该接收单元还用于根据该组标识和获取到的该第一系统消息的时频资源接收该网络侧设备发送的该第一系统消息。
实施例14：根据实施例13所描述的UE，该接收单元还用于：接收该网络侧设备发送的第一广播消息，该第一广播消息包括基于需求发送的系统消息的指示信息；该指示信息包括该第一系统消息的指示信息；其中，该指示信息包括该系统消息的序号，或该指示信息包括该系统消息的序号和标签，或该指示信息包括该系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，该标签用于UE确定该系统消息的内容是否变化；或
该指示信息包括位图，该位图中的各个比特的值用于指示该各个比特对应的系统消息需UE通过发送系统消息请求获得。
实施例15：根据实施例13或14所描述的UE，该接收单元用于：接收该网络侧设备发送的专有信令，该专有信令包括该组标识；或
还包括获取单元，用于根据该组标识和预配置的时频资源的对应关系获得该第一系统消息的时频资源；该接收单元用于：根据该组标识和预配置的时频资源的对应关系获得该第一系统消息的时频资源。
实施例16：根据实施例13或14所描述的UE，该接收单元用于：接收该网络侧设备发送的专有信令，该专有信令包括该组标识和该第一系统消息的时频资源；或
该接收单元用于：接收该网络侧设备发送的专有信令，该专有信令包括该组标识，并接收该网络侧设备发送的第二广播消息，该第二广播消息包括该第一系统消息的时频资源。
实施例17：一种系统消息的发送方法，包括：网络侧设备接收用户设备UE发送的系统消息请求，该系统消息请求用于向该网络侧设备请求获得第一系统消息；该网络侧设备广播该第一系统消息。
实施例18：根据实施例17所描述的方法，该方法还包括：该网络侧设备发送广播消息，该广播消息包括基于需求发送的系统消息的指示信息，该指示信息包括该第一系统消息的指示信息；其中，该指示信息包括该系统消息的序号，或该指示信息包括该系统消息的序号和标签，或该指示信息包括该系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，该标签用于UE确定该系统消息的内容是否变化；或
该指示信息包括位图，该位图中的各个比特的值用于指示该各个比特对应的系统消息需UE通过发送系统消息请求获得。
实施例19：根据实施例17或18所描述的方法，该广播消息还包括该系统消息的时频资源或发送时机，用于指示UE在该时频资源或该发送时机获取该系统消息；或
该广播消息还包括该系统消息的监视时长，用于指示UE若在该监视时长内接收到该系统消息，则保存该系统消息，若未接收到该系统消息，则使UE向该网络侧设备请求广播该系统消息。
实施例20：一种网络侧设备，包括：接收单元，用于接收用户设备UE发送的系统消息请求，该系统消息请求用于向该网络侧设备请求获得第一系统消息；广播单元，用于广播该第一系统消息。
实施例21：根据实施例20所描述的网络侧设备，该广播单元还用于发送广播消息，该广播消息包括基于需求发送的系统消息的指示信息；该指示信息包括该第一系统消息的指示信息；其中，该指示信息包括该系统消息的序号，或该指示信息包括该系统消息的序号和标签，或该指示信息包括该系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，该标签用于UE确定该系统消息的内容是否变化；或
该指示信息包括位图，该位图中的各个比特的值用于指示该各个比特对应的系统消息需UE通过发送系统消息请求获得。
实施例22：根据实施例20或21所描述的网络侧设备，该广播消息还包括该系统消息的时频资源或发送时机，用于指示UE在该时频资源或该发送时机获取该系统消息；或
该广播消息还包括该系统消息的监视时长，用于指示UE若在该监视时长内接收到该系统消息，则保存该系统消息，若未接收到该系统消息，则使UE向该网络侧设备请求广播该系统消息。
实施例23：一种系统消息的发送方法，包括：
用户设备UE向该网络侧设备发送系统消息请求，该系统消息请求用于向该网络侧设备请求获取第一系统消息；该UE接收该网络侧设备发送的第一广播消息，该第一广播消息包括该第一系统消息。
实施例24：根据实施例23所描述的方法，该方法还包括：
该UE接收该网络侧设备发送的第二广播消息，该第二广播消息包括基于需求发送的系统消息的指示信息，该指示信息包括该第一系统消息的指示信息；其中，该指示信息包括该系统消息的序号，或该指示信息包括该系统消息的序号和标签，或该指示信息包括该系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，该标签用于UE确定该系统消息的内容是否变化；或
该指示信息包括位图，该位图中的各个比特的值用于指示该各个比特对应的系统消息需UE通过发送系统消息请求获得。
实施例25：根据实施例24所描述的方法，该第二广播消息还包括系统消息的时频资源或发送时机；该UE接收该网络侧设备发送的第一广播消息包括：该UE根据该时频资源或该发送时机接收该网络侧设备发送的该第一广播消息。
实施例26：根据实施例24或25所描述的方法，该第二广播消息还包括该系统消息的监视时长；在该UE向该网络侧设备发送该系统消息请求之前，该方法还包括：
当该UE确定需获取该第一系统消息时，该UE启动定时器，该定时器时长为该第一系统消息的监视时长；该UE确定是否在该监视时长内接收到该第一系统消息；若确定否，则该UE确定需向该网络侧设备发送该系统消息请求。
实施例27：一种用户设备UE，包括：
发送单元，用于向该网络侧设备发送系统消息请求，该系统消息请求用于向该网络侧设备请求获取第一系统消息；接收单元，用于接收该网络侧设备发送的第一广播消息，该第一广播消息包括该第一系统消息。
实施例28：根据实施例27所描述的UE，该接收单元还用于：接收该网络侧设备发送的第二广播消息，该第二广播消息包括基于需求发送的系统消息的指示信息，该指示信息包括该第一系统消息的指示信息；其中，该指示信息包括该系统消息的序号，或该指示信息包括该系统消息的序号和标签，或该指示信息包括该系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，该标签用于UE确定该系统消息的内容是否变化；或
该指示信息包括位图，该位图中的各个比特的值用于指示该各个比特对应的系统消息需UE通过发送系统消息请求获得。
实施例29：根据实施例28所描述的UE，该第二广播消息还包括系统消息的时频资源或发送时机；该接收单元用于：根据该时频资源或该发送时机接收该网络侧设备发送的该第一广播消息。
实施例30：根据实施例28或29所描述的UE，该第二广播消息还包括该系统消息的监视时长；在该UE向该网络侧设备发送该系统消息请求之前，还包括定时单元，用于当该UE确定需获取该第一系统消息时，启动定时器，该定时器时长为该第一系统消息的监视时长；确定单元，用于确定是否在该监视时长内接收到该第一系统消息；若确定否，则确定需向该网络侧设备发送该系统消息请求。
由此，本发明实施例提供的系统消息发送方法，当UE请求获取第一系统消息时，网络侧设备并不是如现有技术中向每个请求第一系统消息的UE发送专有信令，而是广播第一系统消息，这样，有需求的UE可接收到第一系统消息，对第一系统消息感兴趣的UE也可接收并保存第一系统消息，这样，可减少网络侧设备向每个UE发送专有信令的网络资源。
上述主要从各个网元之间交互的角度对本发明实施例提供的方案进行了介绍。可以理解的是，各个网元，例如基站、UE等为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本发明能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本发明的范围。
本发明实施例可以根据上述方法示例对网络侧设备、UE等进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本发明实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
在采用对应各个功能划分各个功能模块的情况下，图9示出了上述实施例中所涉及的网络侧设备的一种可能的结构示意图，网络侧设备包括：接收单元901、发送单元902、确定单元903。接收单元901用于支持网络侧设备执行图3中的过程301，发送单元902用于支持网络侧设备执行图3中的过程302和303，图5中的过程501、504、505、506，确定单元903用于支持网络侧设备执行图5中的过程503。其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在采用对应各个功能划分各个功能模块的情况下，图10示出了上述实施例中所涉及的UE的一种可能的结构示意图，UE包括：发送单元101、接收单元102、获取单元103。发送单元101用于支持UE执行图4中的过程401，图5中的过程502，接收单元102用于支持UE执行图4中的过程402和403，图5中的过程507。获取单元103用于支持UE根据Group ID与时频资源的对应关系获取系统消息的时频资源。其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在采用对应各个功能划分各个功能模块的情况下，图11示出了上述实施例中所涉及的网络侧设备的另一种可能的结构示意图，网络侧设备包括：接收单元111、广播单元112、发送单元113、确定单元114。接收单元用于支持网络侧设备执行图6中的过程601，广播单元用于支持网络侧设备执行图6中的过程602，发送单元用于支持网络侧设备执行图8中的过程801、804、805，确定单元用于支持网络侧设备执行图8中的过程803其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在采用对应各个功能划分各个功能模块的情况下，图12示出了上述实施例中所涉及的UE的另一种可能的结构示意图，UE包括：发送单元121、接收单元122、定时单元123、确定单元124。发送单元用于支持UE执行图7中的过程701，图8中的过程802，接收单元用于支持UE执行图7中的过程702，定时单元用于支持UE执行图8中关于定时器的描述方法，例如步骤802中的描述方法，确定单元用于支持UE执行图8中的步骤805中的第4段，即确定是否更新SI。其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模 块的功能描述，在此不再赘述。
在采用集成的单元的情况下，图13示出了上述实施例中所涉及的网络侧设备的一种可能的结构示意图。网络侧设备13包括：处理模块1301和通信模块1302。处理模块1301用于对网络侧设备的动作进行控制管理，例如，处理模块1301用于支持网络侧设备执行图5中的过程503，图8中的过程803。通信模块1302用于支持网络侧设备与其他网络实体的通信，例如与UE进行通信，例如与图4、图5、图7、图8中示出的功能模块或网络实体之间的通信，具体用于支持网络侧设备执行图3中的过程301、302和303，图5中的过程501、504、505、506，图6中的过程601、602，图8中的过程801、804、805。网络侧设备还可以包括存储模块1303，用于存储基站的程序代码和数据。
其中，处理模块1301可以是处理器或控制器，例如可以是中央处理器(Central Processing Unit，CPU)，通用处理器，数字信号处理器(Digital Signal Processor，DSP)，专用集成电路(Application-Specific Integrated Circuit，ASIC)，现场可编程门阵列(Field Programmable Gate Array，FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信模块1302可以是收发器、收发电路或通信接口等。存储模块1303可以是存储器。
当处理模块1301为处理器，通信模块1302为收发器，存储模块1303为存储器时，本发明实施例所涉及的网络侧设备可以为图13所示的网络侧设备。
参阅图14所示，该网络侧设备14包括：处理器1412、收发器1413、存储器1411以及总线1414。其中，收发器1413、处理器1412以及存储器1411通过总线1414相互连接；总线1414可以是外设部件互连标准(Peripheral Component Interconnect，PCI)总线或扩展工业标准结构(Extended Industry Standard Architecture，EISA)总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图14中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
在采用集成的单元的情况下，图15示出了上述实施例中所涉及的UE的一种可能的结构示意图。UE15包括：处理模块1501和通信模块1502。处理模块1501用于对UE的动作进行控制管理，例如，处理模块1501用于支持UE执行根据接收到的标签确定是否更新UE保存的系统消息。通信模块1502用于支持UE与其他网络实体的通信，例如与网络侧设备进行通信，例如与图3、图5、图6、图8中示出的功能模块或网络实体之间的通信，具体用于支持UE执行图4的过程401、402和403，图5中的过程502、507，图7中的过程701、702，图8中的过程802。UE还可以包括存储模块1503，用于存储UE的程序代码和数据。
其中，处理模块1501可以是处理器或控制器，例如可以是CPU，通用处理器，数字信号处理器DSP，专用集成电路ASIC，FPGA或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本发明公开内容所描述的各种示例性的逻辑方框，模块和电路。所述处理器也可以是实现计算功能的组合，例如包含一个或多个微处理器组合，DSP和微处理器的组合等等。通信模块1502可以是收发器、收发电路或通信接口等。存储模块1503可以是存储器。
当处理模块1501为处理器，通信模块1502为收发器，存储模块1503为存储器时，本发明实施例所涉及的UE可以为图16所示的UE。
参阅图16所示，该UE16包括：处理器1612、收发器1613、存储器1611以及总线1614。其中，收发器1613、处理器1612以及存储器1611通过总线1614相互连接；总线1614可以是外设部件互连标准PCI总线或扩展工业标准结构EISA总线等。所述总线可以分为地址总线、数据总线、控制总线等。为便于表示，图16中仅用一条粗线表示，但并不表示仅有一根总线或一种类型的总线。
本发明实施例还提供一种通信系统，包括如上述图3、图4和图5实施例中涉及的网络 侧设备和UE，网络侧设备可以用于执行图3的过程301、302和303，图5中的过程501、503、504、505和506，UE可用于执行图4中的过程401和402，图5中的过程502和507，网络侧设备的具体实现可以参见图3和图5中各步骤的实现方式，UE的具体实现可以参见图4和图5中各步骤的实现方式。
本发明实施例还提供一种通信系统，包括如上述图6、图7和图8实施例中涉及的网络侧设备和UE，网络侧设备可以用于执行图6中的过程601和602，图8中的过程801、803、804、805，UE可用于执行图7中的过程701和702，图8中的过程802，网络侧设备的具体实现可以参见图6和图8中各步骤的实现方式，UE的具体实现可以参见图7和图8中各步骤的实现方式。
本发明实施例还提供一种通信系统，包括如上述图3和图5所涉及的方法实施例中的网络侧设备，网络侧设备可以用于执行图3和图5中的过程301、302、303、501、503、504、505和506，网络侧设备的具体实现方式可以参见图3和图5所示的方法实施例中的具体实现。
本发明实施例还提供一种通信系统，包括如图6和图8中的方法实施例所涉及的网络侧设备，网络侧设备可以用于执行图6和图8中的过程601、602、801、803、804、805，网络侧设备的具体实现方式可以参见图6和图8所示的方法实施例中的具体实现。
本发明实施例还提供一种系统芯片，包括输入输出接口、至少一个处理器、存储器和总线等，输入输出接口可以用于执行图3中的过程301、302和303，图5中的过程501、504、505和506，处理器用于执行图5中的过程503，存储器用于存储应用程序和数据，例如存储指示信息和系统消息等，输入输出接口、至少一个处理器和存储器连接在总线上。该系统芯片可以为系统芯片(System on Chip，SoC)等。
本发明实施例还提供一种系统芯片，包括输入输出接口、至少一个处理器、存储器和总线等，输入输出接口可以用于执行图4中的过程401和402，图5中的过程502和507，存储器用于存储应用程序和数据等，输入输出接口、存储器连接在总线上。
本发明实施例提供一种系统芯片，包括输入输出接口、至少一个处理器、存储器和总线等，输入输出接口可以用于执行图6中的过程601和602，图8中的801、804、805，处理器用于执行图8中的过程803、存储器用于存储应用程序和数据，输入输出接口、至少一个处理器和存储器连接在总线上。
本发明实施例提供一种系统芯片，包括输入输出接口、至少一个处理器、存储器和总线等，输入输出接口可以用于执行图7中的过程701和702，图8中的过程802，存储器用于存储数据和应用程序，输入输出接口、至少一个处理器和存储器连接在总线上。
本发明实施例还提供一种计算机存储介质，用于存储图3和图5中的网络侧设备所用的计算机软件指令，其包括用于执行上述图3的过程301、302和303，图5中的过程501、503、504、505和506所设计的程序。
本发明实施例还提供一种计算机存储介质，用于存储图4和图5中的UE所用的计算机软件指令，其包括用于执行上述图4中的过程401和402，图5中的过程502和507所设计的程序。
本发明实施例还提供一种计算机存储介质，用于存储图6和图8中的网络侧设备所用的计算机软件指令，其包括用于执行上述图6中的过程601和602，图8中的过程801、803、804、805所设计的程序。
本发明实施例还提供一种计算机存储介质，用于存储图7和图8中的UE所用的计算机软件指令，其包括用于执行上述图7中的过程701和702，图8中的过程802所设计的程序。
结合本发明公开内容所描述的方法或者算法的步骤可以硬件的方式来实现，也可以是由处理器执行软件指令的方式来实现。软件指令可以由相应的软件模块组成，软件模块可以被存放于随机存取存储器(Random Access Memory，RAM)、闪存、只读存储器(Read Only Memory，ROM)、可擦除可编程只读存储器(Erasable Programmable ROM，EPROM)、电可擦可编程只读存储器(Electrically EPROM，EEPROM)、寄存器、硬盘、移动硬盘、只读光盘(CD-ROM)或者本领域熟知的任何其它形式的存储介质中。一种示例性的存储介质耦合至处理器，从而使处理器能够从该存储介质读取信息，且可向该存储介质写入信息。 当然，存储介质也可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。另外，该ASIC可以位于核心网接口设备中。当然，处理器和存储介质也可以作为分立组件存在于核心网接口设备中。
本领域技术人员应该可以意识到，在上述一个或多个示例中，本发明所描述的功能可以用硬件、软件、固件或它们的任意组合来实现。当使用软件实现时，可以将这些功能存储在计算机可读介质中或者作为计算机可读介质上的一个或多个指令或代码进行传输。计算机可读介质包括计算机存储介质和通信介质，其中通信介质包括便于从一个地方向另一个地方传送计算机程序的任何介质。存储介质可以是通用或专用计算机能够存取的任何可用介质。
以上所述的具体实施方式，对本发明的目的、技术方案和有益效果进行了进一步详细说明，所应理解的是，以上所述仅为本发明的具体实施方式而已，并不用于限定本发明的保护范围，凡在本发明的技术方案的基础之上，所做的任何修改、等同替换、改进等，均应包括在本发明的保护范围之内。

Claims (27)

  1. 一种系统消息的发送方法，其特征在于，包括：
    用户设备向网络侧设备发送系统消息请求，所述系统消息请求用于向所述网络侧设备请求获取第一系统消息；
    所述用户设备接收所述网络侧设备广播的所述第一系统消息。
  2. 根据权利要求1所述的方法，其特征在于，包括：
    所述用户设备接收所述网络侧设备发送的广播消息，所述广播消息包括基于需求发送的系统消息的指示信息，所述指示信息包括所述第一系统消息的指示信息；
    其中，所述指示信息包括所述系统消息的序号，或所述指示信息包括所述系统消息的序号和标签，或所述指示信息包括所述系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，所述标签用于所述用户设备确定所述系统消息的内容是否变化；
    或者，
    所述指示信息包括位图，所述位图中的各个比特的值用于指示所述各个比特对应的系统消息是否需所述用户设备通过发送系统消息请求获得。
  3. 根据权利要求1所述的方法，其特征在于，包括：所述用户设备接收所述网络侧设备发送的广播消息，所述广播消息包括基于需求发送的系统消息的指示信息，所述指示信息包括所述第一系统消息的指示信息；所述指示信息用于表明所述用户设备是否需要发送系统消息请求来获得系统消息。
  4. 根据权利要求3所述的方法，其特征在于，包括：所述指示信息包括位图，所述位图包括至少一个比特，所述位图中的各个比特的值表明所述各个比特分别对应的系统消息是否需要所述用户设备通过发送系统消息请求获得。
  5. 根据权利要求2-4中任一所述的方法，其特征在于，所述广播消息还包括系统消息的时频资源或发送时机；
    所述用户设备接收所述网络侧设备广播的所述第一系统消息包括：
    所述用户设备根据所述时频资源或所述发送时机接收所述网络侧设备广播的所述第一系统消息。
  6. 根据权利要求2-5中任一所述的方法，其特征在于，所述广播消息还包括所述系统消息的监视时长，所述方法还包括：
    若所述用户设备未在所述监视时长内接收到所述第一系统消息，则所述用户设备向所述网络侧设备发送所述系统消息请求。
  7. 根据权利要求1所述的方法，其特征在于，包括：
    所述系统消息请求包括位图，所述位图中的一个比特表示需要请求所述第一系统消息。
  8. 根据权利要求1-7中任一所述的方法，其特征在于，所述用户设备发送所述系统消息请求后，所述用户设备在所述第一系统消息的周期性时频资源或发送时间中最近的时频资源或发送时机接收所述第一系统消息；
  9. 根据权利要求1-8任一所述的方法，其特征在于，所述第一系统消息包括所述第一系统消息的有效时间。
  10. 根据权利要求1-9任一所述的方法，其特征在于，所述用户设备向所述网络侧设备发送系统消息请求之前，还包括：
    所述用户设备在下一次接收到的所述第一系统消息的时频资源或发送时机上未接收到所述第一系统消息。
  11. 一种系统消息的发送方法，其特征在于，包括：
    网络侧设备接收用户设备发送的系统消息请求，所述系统消息请求用于向所述网络侧设备请求获得第一系统消息；
    所述网络侧设备广播所述第一系统消息。
  12. 根据权利要求11所述的方法，其特征在于，包括：
    所述网络侧设备发送广播消息，所述广播消息包括基于需求发送的系统消息的指示信息，所述指示信息包括所述第一系统消息的指示信息；
    其中，所述指示信息包括所述系统消息的序号，或所述指示信息包括所述系统消息的序号和标签，或所述指示信息包括所述系统消息的序号和标签，以及至少两个系统消息的公共标签，其中，所述标签用于UE确定所述系统消息的内容是否变化；或
    所述指示信息包括位图，所述位图中的各个比特的值用于指示所述各个比特对应的系统消息是否需UE通过发送系统消息请求获得。
  13. 根据权利要求11所述的方法，其特征在于，包括：所述网络侧设备发送广播消息，所述广播消息包括基于需求发送的系统消息的指示信息，所述指示信息包括所述第一系统消息的指示信息，所述指示信息包括所述第一系统消息的指示信息；所述指示信息用于指示所述用户设备是否需要发送系统消息请求来获得系统消息。
  14. 根据权利要求13所述的方法，其特征在于，包括：所述指示信息包括位图，所述位图包括至少一个比特，所述位图中的各个比特的值表明所述各个比特分别对应的系统消息是否需要所述用户设备通过发送系统消息请求获得。
  15. 根据权利要求11-14中任一所述的方法，其特征在于，所述广播消息包括所述系统消息的时频资源或发送时机，用于指示用户设备在所述时频资源或所述发送时机获取所述系统消息。
  16. 根据权利要求11-14中任一所述的方法，其特征在于，所述广播消息包括所述系统消息的监视时长，
    一种情况：在所述监视时长内所述用户设备接收到所述系统消息，所述用户设备保存所述系统消息；或者，
    另一种情况：在所述监视时长内所述用户设备未接收到所述系统消息，所述用户设备向所述网络侧设备请求广播所述系统消息。
  17. 根据权利要求11至16中任一所述的方法，其特征在于，
    所述网络侧设备在广播的周期性的时频资源或发送时间里选择最近的时频资源或发送时机广播所述第一系统消息。
  18. 根据权利要求11-17中任一所述的方法，其特征在于，所述第一系统消息包括所述第一系统消息的有效时间。
  19. 一种用户设备，其特征在于，包括：存储器、收发器和至少一个处理器，所述存储器中存储有指令，所述存储器、所述收发器和所述至少一个处理器通过线路互联，所述收发器用于执行权利要求1-10任一所述的方法中，在所述用户设备进行的消息收发的操作；
    所述至少一个处理器调用所述存储器中存储的所述指令，执行权利要求1-10中任一所述的方法中在所述用户设备进行的处理操作。
  20. 一种网络侧设备，其特征在于，包括：存储器、收发器和至少一个处理器，所述存储器中存储有指令，所述存储器、所述收发器和所述至少一个处理器通过线路互联，所述收发器用于执行权利要求11-18任一所述的方法中，在所述网络侧设备进行的消息收发的操作；
    所述至少一个处理器调用所述存储器中存储的所述指令，执行权利要求11-18中任一所述的方法中在所述网络侧设备进行的处理操作。
  21. 一种芯片系统，应用于用户设备中，其特征在于，包括：所述芯片系统包括至少一个处理器，存储器和接口电路，所述接口电路负责所述芯片系统与外界的信息交互，所述存储器、所述接口电路和所述至少一个处理器通过线路互联，所述至少一个存储器中存储有指令；所述指令被所述至少一个处理器执行，以进行如权利要求1-10中任一所述的方法中所述用户设备的操作。
  22. 一种芯片系统，应用于网络侧设备中，其特征在于，包括：所述芯片系统包括至 少一个处理器，存储器和接口电路，所述接口电路负责所述芯片系统与外界的信息交互，所述存储器、所述接口电路和所述至少一个处理器通过线路互联，所述至少一个存储器中存储有指令；所述指令被所述至少一个处理器执行，以进行如权利要求11-18中任一所述的方法中所述网络侧设备的操作。
  23. 一种计算机可读存储介质，应用于用户设备中，其特征在于，所述计算机可读存储介质中存储有指令，当所述指令在计算设备上运行时，以进行如权利要求1-10中任一所述的方法中所述用户设备的操作。
  24. 一种计算机可读存储介质，应用于网络侧设备中，其特征在于，所述计算机可读存储介质中存储有指令，当所述指令在计算设备上运行时，以进行如权利要求1-10中任一所述的方法中所述网络侧设备的操作。
  25. 一种通信系统，其特征在于，包括：网络侧设备，和或，用户设备；
    其中，所述网络侧设备为权利要求20所述的网络侧设备，所述用户设备为权利要求19所述的用户设备。
  26. 一种计算机程序产品，应用于用户设备中，其特征在于，所述计算机程序包括一系列指令，当所述指令被运行时，以进行如权利要求1-10中任一所述的方法中所述用户设备的操作。
  27. 一种计算机程序产品，应用于网络侧设备中，其特征在于，所述计算机程序包括一系列指令，当所述指令被运行时，以进行如权利要求11-18中任一所述的方法中所述网络侧设备的操作。
PCT/CN2017/096635 2016-08-09 2017-08-09 一种系统消息的发送方法和设备 WO2018028602A1 (zh)

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KR1020197006133A KR102179852B1 (ko) 2016-08-09 2017-08-09 시스템 메시지들을 송신하기 위한 방법 및 장치
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US20210392566A1 (en) 2021-12-16
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US11102706B2 (en) 2021-08-24
EP3982671A1 (en) 2022-04-13
KR102179852B1 (ko) 2020-11-17
US11096113B2 (en) 2021-08-17
KR20190035832A (ko) 2019-04-03
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