WO2018010694A1 - 发送和接收***消息的方法、基站和用户设备 - Google Patents

发送和接收***消息的方法、基站和用户设备 Download PDF

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Publication number
WO2018010694A1
WO2018010694A1 PCT/CN2017/092957 CN2017092957W WO2018010694A1 WO 2018010694 A1 WO2018010694 A1 WO 2018010694A1 CN 2017092957 W CN2017092957 W CN 2017092957W WO 2018010694 A1 WO2018010694 A1 WO 2018010694A1
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Prior art keywords
message
information
system information
received
scheduling
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PCT/CN2017/092957
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English (en)
French (fr)
Inventor
张崇铭
肖芳英
山田升平
刘仁茂
Original Assignee
夏普株式会社
张崇铭
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Application filed by 夏普株式会社, 张崇铭 filed Critical 夏普株式会社
Priority to RU2019104001A priority Critical patent/RU2736551C2/ru
Priority to NZ750250A priority patent/NZ750250B2/en
Priority to PL17827030T priority patent/PL3487228T3/pl
Priority to US16/317,669 priority patent/US20190349840A1/en
Priority to EP17827030.2A priority patent/EP3487228B1/en
Priority to AU2017297575A priority patent/AU2017297575B2/en
Priority to ES17827030T priority patent/ES2863349T3/es
Priority to CA3030329A priority patent/CA3030329A1/en
Priority to KR1020197003969A priority patent/KR102319195B1/ko
Publication of WO2018010694A1 publication Critical patent/WO2018010694A1/zh
Priority to ZA2019/00907A priority patent/ZA201900907B/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/18—Management of setup rejection or failure
    • 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

Definitions

  • the present invention relates to the field of wireless communication technologies. More specifically, the present invention relates to a method of transmitting and receiving system messages and corresponding base stations and user equipment.
  • the research topic of the new 5G wireless access technology was proposed at the 3rd Generation Partnership Project (3GPP) RAN#64 plenary meeting held in March 2016 (see Non-Patent Document: RP-160671New SID Proposal: Study On New Radio Access Technology).
  • 3GPP 3rd Generation Partnership Project
  • RP-160671New SID Proposal Study On New Radio Access Technology
  • the working frequency band of the new communication system can be extended to 100 GHz, and at the same time, it will meet at least the demand for enhanced mobile broadband services, the communication requirements of massive IoT terminals, and the business requirements for high reliability requirements.
  • the research work of the project will end in 2018.
  • system information In an existing LTE system, in order to ensure normal access of an LTE user equipment (UE), a base station (eNB) periodically broadcasts information of an access layer and a non-access stratum, collectively referred to as system information.
  • system information is divided into a main system information block MasterInformationBlock (MIB) and several SystemInformationBlocks (SIBs) to carry different content, of which there are up to 20 types of SIB.
  • MIB MasterInformationBlock
  • SIBs SystemInformationBlocks
  • the MIB carries the necessary and most frequently transmitted parameters for obtaining basic information of the cell, and SIB1 includes scheduling information of other SIBs. It can be seen that the MIB and SIB1 are system information that the UE must receive. Except for MIB and SIB1, not all other SIBs need to be broadcast.
  • the eNB selects the system information block related to the feature to broadcast according to the characteristics supported by the current access network device and the characteristics of the non-access stratum. For example, if the current access network supports enhanced access control, the eNB broadcasts the SIB14, which carries the information about the EAB.
  • the eNB will broadcast SIB13 and so on. These broadcasted information will be reflected in the scheduling information carried by SIB1. SIBs that are not scheduled are not broadcast.
  • the system information broadcast by the eNB is periodically sent. Except that the MIB and the SIB1 are independently transmitted, the SIBs with the same period are scheduled in the same System Information Message and periodically on the fixed downlink resources. send.
  • the UE Before the UE initiates the access, in addition to the MIB and the SIB1, it is necessary to obtain other SIBs according to its own characteristics, and then initiate the access. For example, if the UE supports multiple modes, the SIB8 needs to be read to obtain the heterogeneous cell reselection information. Otherwise, it is not required. If the UE supports WLAN interoperation, the SIB17 and the like need to be acquired. Otherwise, it is not required.
  • the periodic broadcast of all system information supported by the eNB facilitates the UE to obtain corresponding information at any time.
  • system information needs to be broadcasted repeatedly on specific downlink resources, resource utilization is not high, and energy consumption is large.
  • a method performed by a user equipment comprising: receiving a first system information SI message, wherein the first system information SI message includes category information related to a system information block SIB and the Scheduling information of the second system information SI message to which the type of the SIB belongs, the scheduling information including a moment when the second SI message appears and indication information indicating whether the second SI message is to be broadcasted; and if the indication The information indicates that the second SI message is not broadcast, then sends an SI request message, and receives a required system information block SIB according to the scheduling information in the received first SI message.
  • a method performed by a base station comprising: including genre information related to a system information block SIB and scheduling information of a second system information SI message to which the type of the SIB belongs The first SI message, wherein the scheduling information packet And a timing indicating the occurrence of the second SI message and indication information indicating whether the second SI message is to be broadcasted; and if the indication information indicates that the second SI message is not broadcast, receiving an SI request message and The second SI message is sent at the specified scheduling moment.
  • a user equipment including: a first receiving unit, configured to: receive a first system information SI message, wherein the first system information SI message includes a system information block SIB Relevant genre information and scheduling information of the second system information SI message to which the type of the SIB belongs, the scheduling information including a moment when the second SI message appears and indication information indicating whether the second SI message is to be broadcasted
  • the second receiving unit is configured to: if the indication information indicates that the second SI message is not broadcast, send an SI request message, and receive the required according to the scheduling information in the received first SI message System information block SIB.
  • a base station including: a generating unit configured to include, for example, category information related to a system information block SIB and scheduling information of a second system information SI message to which the type of the SIB belongs In the first SI message to be sent, where the scheduling information includes a moment when the second SI message appears and indication information indicating whether the second SI message is to be broadcasted; and a sending unit configured to The indication information indicates that the second SI message is not broadcast, and then receives an SI request message and sends the second SI message at a specified scheduling moment.
  • FIG. 1 is a block diagram showing a base station according to an embodiment of the present application.
  • FIG. 2 is a block diagram showing a user equipment in accordance with one embodiment of the present application.
  • FIG. 3 is a flow chart showing a method of transmitting system information according to an embodiment of the present application.
  • FIG. 4 is a flow chart showing a method of receiving system information in accordance with one embodiment of the present application.
  • FIG. 1 is a block diagram showing a base station according to an embodiment of the present application.
  • the base station 100 includes a generating unit 110 and a transmitting unit 120.
  • the generating unit 110 is configured to include the category information related to the system information block (SIB) and the scheduling information of the second system information (SI) message to which the category of the SIB belongs, in the first SI message to be transmitted.
  • the scheduling information may include a moment when the second SI message appears and indication information indicating whether the second SI message is to be broadcast.
  • the transmitting unit 120 is configured to transmit the first SI message generated by the generating unit 110.
  • the base station 100 may carry the SIB type sent by the cell and the scheduling information of the SI message to which the SIB category belongs, in system information (for example, MIB or SIB1) that needs to be frequently transmitted.
  • the scheduling information may include the moment when the SI message appears.
  • the scheduling information of each SI message further includes indication information to indicate whether the SI message will be broadcast.
  • the indication information can be represented by 1 bit. For example, when the indication information is set to 0 (or 1), it may indicate that the corresponding SI message is broadcast (ie, the SI message appears at all scheduling moments). Conversely, when the indication information is set to 1 (or 0), it indicates that the corresponding SI message is not broadcast (ie, the SI message does not appear at all scheduling moments).
  • the indication information may also be indicated as follows: the eNB divides the SI messages sent by the cell into two categories, one type is to be broadcasted, and such information always appears at a specified scheduling time; the other type is not Will be broadcast, such information will not always appear at all scheduling moments.
  • the meaning of the SI message not to be broadcasted in the indication information may also be replaced by the SI message that the request message needs to be sent. That is, if the indication information indicates that the second SI message is not broadcast, the SI request message is received first, and then the generated first SI message is transmitted at the designated scheduling moment.
  • one SIB or multiple SIBs may be carried in one SI message. If the SI message carries only one type of SIB, the SI message is considered to be equivalent to the SIB.
  • the user equipment 200 includes a first receiving unit 210 and a second receiving unit 220.
  • the first receiving unit 210 is configured to receive the first system information SI message.
  • the first system information SI message may include category information related to the system information block SIB and scheduling information of the second system information SI message to which the type of the SIB belongs.
  • the scheduling information may include a time at which the second SI message appears and indication information indicating whether the second SI message is to be broadcast.
  • the second receiving unit 220 is configured to: if the indication information indicates that the second SI message has been broadcast, receive the required system information block SIB according to the scheduling information in the received first SI message. For example, the second receiving unit 220 can receive the required system information block SIB in the following manner:
  • the UE may determine that the current link is abnormal. At this time, other mechanisms such as cell reselection may be required.
  • the UE Since the SIB that the UE needs to receive is included in the SI message, if the SI message carries multiple SIBs, and the UE only needs to acquire one of the SIBs, the UE may receive all the SI messages, and then reserve the required SIBs and discard them. Other unwanted SIBs. Alternatively, regions of different SIB distributions may be defined in a predefined SI message such that the UE may only receive portions of the SIB in which it does not need to be fully received.
  • the second receiving unit 220 may be further configured to: if the indication information indicates that the second SI message is not broadcast, send an SI request message, and receive the required system information block according to the scheduling information in the received first SI message. SIB.
  • the SI request message may indicate the category of the requested one or more SIBs. If the UE only needs to acquire one SIB, the SI request message may indicate that the SIB is requested, or indicates that the SI message corresponding to the SIB is requested. If the UE needs to receive multiple classes of SIBs Otherwise, and distributed in different SI messages, the SI request message sent by the UE may request one or more SIBs.
  • the second receiving unit 220 may be configured to transmit the SI request message one or more times. For example, if the UE needs to acquire the SIBx and the SIBy, and the SIBx and the SIBy are distributed in different SI messages, the UE may send an SI request message to request the base station to send the SIBx and the SIBy. Then, the UE receives the SIBx and the SIBy at the scheduling moment of the SI message corresponding to the SIBx and the SIBy. Alternatively, the UE may first send the SI request information to request the base station to send the SIBx according to the sequence of scheduling moments in which the SIBx and the SIBy appear, and then receive the SIBx. Then, the UE sends the SI request information to request the base station to send the SIBy, and then receives the SIBy.
  • the second receiving unit 220 may be configured to determine the time at which the SI request message is transmitted according to the time distance between the current time and the upcoming scheduled time of the target SIB. For the moment when the UE sends the SI request message, the UE may first confirm the current time. If the current time is longer than the scheduled scheduling time of the target SIB, the UE may be at a certain time before the scheduling time. Send an SI request message.
  • the value of n can be defined according to the request processing delay of the base station before the length of the n subframes before the scheduling time. If it is less than n subframes, the UE may not transmit the SI request message first, but try to receive at the scheduling moment. If there are other UEs requesting the SIB before, then the UE is likely to receive the SIB. If the UE does not receive, an SI request message is sent before the next scheduled time comes.
  • the second receiving unit 220 can be configured to transmit an SI request message on the designated resource. This is because the moment when the UE sends the SI request message may also be limited by the resources that allow the request message to be sent.
  • the base station can specify resources (eg, including time and frequency resources) to send SI request messages. Accordingly, the UE should send the request information at the latest available resource that is closest to the upcoming scheduling moment.
  • the second receiving unit 220 may receive the required system information block SIB in the following manner:
  • the UE may continue to receive at the second scheduling moment, and so on, until the SIB (or SI message) is correctly received. If the timer expires and the requested system information is still not received correctly, the SI request message may be resent after the timer expires.
  • the system information request message sent by the UE may be the SI message requesting the SIB or requesting the corresponding SI message.
  • the base station may send the SI message carrying only the SIB at the corresponding moment, and may also send the SI message carrying the SIB and other SIBs included in the SI message, because other SIBs may be other The UE comes to request. If the SI message carries multiple SIBs, and the UE only needs to obtain one of the SIBs, the UE may receive all the SI messages, and then reserve the required SIBs and discard other unnecessary SIBs. Alternatively, regions of different SIB distributions may be defined in a predefined SI message. In this way, the UE can only receive the part in which the SIB is included, without requiring all reception.
  • FIG. 3 is a flow chart showing a method of transmitting system information according to an embodiment of the present application. As shown in FIG. 3, method 300 begins at step S310.
  • step S320 the category information related to the system information block SIB and the scheduling information of the second system information SI message to which the type of the SIB belongs are included in the first SI message to be transmitted.
  • the scheduling information includes a moment when the second SI message appears and indication information indicating whether the second SI message is to be broadcast.
  • step S330 if the indication information indicates that the second SI message is not broadcast, the SI request message is received and the second SI message is sent at the designated scheduling moment.
  • Method 300 then ends at step S340.
  • the SI message when the indication information indicates that the SI message is broadcast, the SI message appears at all scheduling moments. When the indication information indicates that the SI message is not broadcast, the SI message will not be in all scheduling It appears on the engraving. If the indication information indicates that the second SI message is not broadcast, the SI request message is first received, and the system information block SIB is transmitted according to the scheduling information in the received first SI message.
  • method 400 begins at step S410.
  • a first system information SI message is received.
  • the first system information SI message includes category information related to the system information block SIB and scheduling information of the second system information SI message to which the type of the SIB belongs.
  • the scheduling information includes a time at which the second SI message appears and indication information indicating whether the second SI message is to be broadcast.
  • step S430 it is judged whether the indication information indicates that the SI message has been broadcast. If the indication information indicates that the second SI message has been broadcast, then at step S440, the required system information block SIB is received according to the scheduling information in the received SI message. Alternatively, if the indication information indicates that the second SI message is not broadcast, then at step S450, the SI request message is sent first, and then the required system information block SIB is received according to the scheduling information in the received SI message.
  • receiving the required system information block SIB may include: calculating a location or a duration and a duration of the second SI message according to the scheduling information in the received first SI message. In this duration, data packets are received on the corresponding downlink channel.
  • receiving the required system information block SIB may include: calculating a running period of the receiving timer according to the scheduling information in the received first SI message. Data packets are received on the corresponding downlink channel during operation of the timer.
  • receiving the required system information block SIB may include: starting a reception timer according to the pre-configured information. During operation of the timer, data packets are received on the corresponding downlink channel based on the time indicated by the scheduling information.
  • the SI request message indicates the category of the requested one or more SIBs.
  • the SI request message can be sent one or more times.
  • the time at which the SI request message is sent may be determined according to the time distance between the current time and the scheduled scheduling time of the target SIB.
  • the SI request message can be sent on a designated resource.
  • method 400 ends at step S460.
  • the computer program product is a product having a computer readable medium encoded with computer program logic that, when executed on a computing device, provides related operations to implement The above technical solution of the present application.
  • the computer program logic When executed on at least one processor of a computing system, the computer program logic causes the processor to perform the operations (methods) described in this application.
  • Such an arrangement of the present application is typically provided as software, code, and/or other data structures, such as one or more, that are arranged or encoded on a computer readable medium such as an optical medium (eg, CD-ROM), floppy disk, or hard disk.
  • Software or firmware or such a configuration may be installed on the computing device such that one or more processors in the computing device perform the technical solutions described in the embodiments of the present application.
  • the program running on the device according to the present invention may be a program that causes a computer to implement the functions of the embodiments of the present invention by controlling a central processing unit (CPU).
  • the program or information processed by the program may be temporarily stored in a volatile memory (such as a random access memory RAM), a hard disk drive (HDD), a non-volatile memory (such as a flash memory), or other memory system.
  • a program for realizing the functions of the embodiments of the present invention can be recorded on a computer readable recording medium.
  • the corresponding functions can be realized by causing a computer system to read programs recorded on the recording medium and execute the programs.
  • the so-called "computer system” herein may be a computer system embedded in the device, and may include an operating system or hardware (such as a peripheral device).
  • the "computer readable recording medium” may be a semiconductor recording medium, an optical recording medium, a magnetic recording medium, a recording medium of a short-term dynamic storage program, or any other recording medium readable by a computer.
  • circuitry e.g., monolithic or multi-chip integrated circuits.
  • Circuitry designed to perform the functions described in this specification can include general purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, discrete Door Or transistor logic, discrete hardware components, or any combination of the above.
  • DSPs digital signal processors
  • ASICs application specific integrated circuits
  • FPGAs field programmable gate arrays
  • a general purpose processor may be a microprocessor or any existing processor, controller, microcontroller, or state machine.
  • the above circuit may be a digital circuit or an analog circuit.
  • One or more embodiments of the present invention may also be implemented using these new integrated circuit technologies in the context of new integrated circuit technologies that have replaced existing integrated circuits due to advances in semiconductor technology.
  • the present invention is not limited to the above embodiment. Although various examples of the embodiments have been described, the invention is not limited thereto.
  • Fixed or non-mobile electronic devices installed indoors or outdoors can be used as terminal devices or communication devices such as AV devices, kitchen devices, cleaning devices, air conditioners, office equipment, vending machines, and other home appliances.

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Abstract

本申请提供了一种由用户设备执行的方法，包括：接收第一***信息SI消息，其中，所述第一***信息SI消息包括与***信息块SIB有关的种类信息以及该SIB的种类所属的第二***信息SI消息的调度信息，所述调度信息包括所述第二SI消息出现的时刻以及指示所述第二SI消息是否会被广播的指示信息；以及如果所述指示信息指示所述第二SI消息没有被广播，则发送SI请求消息，并根据所接收的第一SI消息中的调度信息来接收所需的***信息块SIB。本申请还提供了相应的用户设备和基站。采用本发明，能够在满足UE获取信息的需求的同时避免不必要的开销，节约***资源。图4

Description

发送和接收***消息的方法、基站和用户设备 技术领域
本发明涉及无线通信技术领域。更具体地，本发明涉及发送和接收***消息的方法以及相应的基站和用户设备。
背景技术
随着移动通信的快速增长和技术的巨大进步，世界将走向一个完全互联互通的网络社会，即任何人或任何东西在任何时间和任何地方都可以获得信息和共享数据。预计到2020年，互联设备的数量将达到500亿部，其中仅有100亿部左右可能是手机和平板电脑，其它的则不是与人对话的机器，而是彼此对话的机器。因此，如何设计***以更好地支持万物互联是一项需要深入研究的课题。
为此，在2016年3月举行的第三代合作伙伴计划(3GPP)RAN#64次全会上，提出了新5G无线接入技术的研究课题(参见非专利文献：RP-160671New SID Proposal:Study on New Radio Access Technology)。在该工作项目的描述中，未来新的通信制式的工作频段可扩展至100GHz,同时将至少满足增强的移动宽带业务需求、海量物联网终端的通信需求,以及高可靠性要求的业务需求等，该项目研究工作将于2018年结束。
为了更好地节能减排，在该项目的初期要求中提出了要避免网络侧重复发送不必要的信息。该要求是基于以下考虑：
在现有的LTE***中，为了保证LTE用户设备(UE)的正常接入，基站(eNB)会周期性的广播接入层以及非接入层的信息，统称为***信息。目前LTE***下，***信息分为一个主***信息块MasterInformationBlock(MIB)和若干个SystemInformationBlocks(SIBs)用来承载不同的内容，其中SIB的种类多达20种。
MIB上携带了用于获取小区的基本信息的必需的以及最频繁发送的参数，SIB1中包含了其他SIB的调度信息。可见MIB和SIB1是UE必须接收的***信息。除了MIB和SIB1外，不是所有其他的SIB都需要被广播。 eNB会根据当前接入网设备支持的特性，以及非接入层的特性，选择与特性相关的***信息块进行广播。例如，当前接入网支持增强的接入准入控制(Enhanced Access Control)，则eNB会广播SIB14，里面携带EAB的相关信息，反之，则不广播；如果当前接入网支持MBMS(Multimedia Broadcast Multicast Service，多媒体广播多播业务)，则eNB会广播SIB13等。这些被广播的信息都会在SIB1携带的调度信息中反映。没有调度的SIB即不被广播。
eNB广播的***信息是周期性发送的，除了MIB和SIB1是独立发送外，具有相同周期的SIB会被安排在同一个***信息消息(System Information Message)中，并在固定的下行资源上周期性发送。
UE在发起接入前，除了MIB和SIB1是必须获取的，还需要根据自身特性获得其他的SIB，然后再发起接入。例如，如果UE支持多制式，还需要读取SIB8获取异制式相关的小区重选信息，反之，则不需要；如果UE支持WLAN的互操作，还需要获取SIB17等，反之，则不需要。
周期性的广播eNB所支持的所有的***信息，有利于UE随时获取相应的信息。但是，***信息需要在特定的下行资源上周而复始的广播，资源利用率不高，且能耗较大。为此，在5G技术研究中期望能避免不必要的开销，同时又能满足UE获取信息的需求。
发明内容
根据本申请的一个方面，提供了一种由用户设备执行的方法，包括：接收第一***信息SI消息，其中，所述第一***信息SI消息包括与***信息块SIB有关的种类信息以及该SIB的种类所属的第二***信息SI消息的调度信息，所述调度信息包括所述第二SI消息出现的时刻以及指示所述第二SI消息是否会被广播的指示信息；以及如果所述指示信息指示所述第二SI消息没有被广播，则发送SI请求消息，并根据所接收的第一SI消息中的调度信息来接收所需的***信息块SIB。。
根据本申请的另一个方面，提供了一种由基站执行的方法，包括：将与***信息块SIB有关的种类信息以及该SIB的种类所属的第二***信息SI消息的调度信息包括在要发送的第一SI消息中，其中，所述调度信息包 括所述第二SI消息出现的时刻以及指示所述第二SI消息是否会被广播的指示信息；以及如果所述指示信息指示所述第二SI消息没有被广播，则接收SI请求消息并在指定的调度时刻发送所述第二SI消息。
根据本申请的另一个方面，提供了一种用户设备，包括：第一接收单元，被配置为：接收第一***信息SI消息，其中，所述第一***信息SI消息包括与***信息块SIB有关的种类信息以及该SIB的种类所属的第二***信息SI消息的调度信息，所述调度信息包括所述第二SI消息出现的时刻以及指示所述第二SI消息是否会被广播的指示信息；以及第二接收单元，被配置为：如果所述指示信息指示所述第二SI消息没有被广播，则发送SI请求消息，并根据所接收的第一SI消息中的调度信息来接收所需的***信息块SIB。
根据本申请的另一个方面，提供了一种基站，包括：生成单元，被配置为：将与***信息块SIB有关的种类信息以及该SIB的种类所属的第二***信息SI消息的调度信息包括在要发送的第一SI消息中，其中，所述调度信息包括所述第二SI消息出现的时刻以及指示所述第二SI消息是否会被广播的指示信息；以及发送单元，被配置为如果所述指示信息指示所述第二SI消息没有被广播，则接收SI请求消息并在指定的调度时刻发送所述第二SI消息。
采用本发明，能够在满足UE获取信息的需求的同时避免不必要的开销，节约***资源。
附图说明
通过下文结合附图的详细描述，本申请的上述和其它特征将会变得更加明显，其中：
图1是示出了根据本申请一个实施例的基站的框图。
图2是示出了根据本申请一个实施例的用户设备的框图。
图3是示出了根据本申请一个实施例的发送***信息的方法的流程图。
图4是示出了根据本申请一个实施例的接收***信息的方法的流程图。
具体实施方式
下面，通过结合附图对本申请的具体实施例的描述，本申请的原理和实现将会变得明显。应当注意的是，本申请不应局限于下文所述的具体实施例。另外，为了简便起见，省略了与本申请无关的公知技术的详细描述。
图1是示出了根据本申请一个实施例的基站的框图。如图1所示，基站100包括生成单元110和发送单元120。
生成单元110被配置为将与***信息块(SIB)有关的种类信息以及该SIB的种类所属的第二***信息(SI)消息的调度信息包括在要发送的第一SI消息中。该调度信息可以包括第二SI消息出现的时刻以及指示第二SI消息是否会被广播的指示信息。
发送单元120被配置为发送生成单元110生成的第一SI消息。
例如，基站100可以在需要频繁发送的***信息(例如，MIB或者SIB1)中携带该小区发送的SIB种类以及该SIB种类所属的SI消息的调度信息。调度信息中可以包含该SI消息出现的时刻。除此之外，每个SI消息的调度信息中还包含指示信息，以指示该SI消息是否会被广播。
该指示信息可以用1个比特来表示。例如，当该指示信息被置0(或者1)时，可以表示对应的SI消息被广播(即，该SI消息在所有的调度时刻都会出现)。相反，当该指示信息被置1(或者0)时，表示对应的SI消息没有被广播(即，该SI消息不会出现在所有的调度时刻)。
备选地，该指示信息也可以这样指示：eNB将该小区发送的SI消息分为两类，一类是会被广播的，此类信息总会在指定的调度时刻出现；另外一类是不会被广播的，此类信息不会总是出现在所有的调度时刻。
备选地，指示信息中所述的不会被广播SI消息的含义还可以替换为，需要发送请求消息才能获得的SI消息。即，如果指示信息指示第二SI消息没有被广播，则先接收SI请求消息，然后在指定的调度时刻发送生成的第一SI消息。
备选地，一个SI消息中可携带一种SIB或者多种SIB。如果SI消息中仅携带一种SIB，可认为该SI消息等价于SIB。
图2是示出了根据本申请一个实施例的用户设备的框图。如图2所示，用户设备200包括第一接收单元210和第二接收单元220。
第一接收单元210被配置为接收第一***信息SI消息。在本实施例中，第一***信息SI消息可以包括与***信息块SIB有关的种类信息以及该SIB的种类所属的第二***信息SI消息的调度信息。调度信息可以包括第二SI消息出现的时刻以及指示第二SI消息是否会被广播的指示信息。
第二接收单元220被配置为：如果指示信息指示第二SI消息已经被广播，则根据所接收的第一SI消息中的调度信息，接收所需的***信息块SIB。例如，第二接收单元220可以以如下方式来接收所需的***信息块SIB：
(1)根据所接收的SI消息中的调度信息，计算SI消息出现的位置和持续时间。在该持续时间中，在对应的下行链路信道上接收数据分组。
(2)根据所接收的SI消息中的调度信息，计算接收定时器的运行期间。在定时器的运行期间，在对应的下行链路信道上接收数据分组。
(3)根据预先配置的信息，启动接收定时器。在定时器的运行期间，根据调度信息指示的时刻，在对应的下行链路信道上接收数据分组。
在定时器的运行期间，可能有多个调度时刻出现。如果UE在第一个调度时刻没有收到请求的SIB(或者SI消息)，则它可以在第二个调度时刻继续接收，以此类推，直到正确接收到SIB(或者SI消息)。如果定时器超时且还未正确接收，UE可以判断当前链路异常，此时可能需要启动小区重选等其他机制。
由于UE需要接收的SIB包含在SI消息中，如果SI消息中携带了多个SIB，而UE仅需要获取其中的一个SIB，那么UE可以将该SI消息全部接收下来，然后保留需要的SIB，丢弃其他不要的SIB。或者，可以在SI消息的预定义中定义不同SIB分布的区域，这样，UE可以仅接收其中包含SIB的部分，而不需要全部接收。
第二接收单元220还可以被配置为：如果指示信息指示第二SI消息没有被广播，则发送SI请求消息，并且根据所接收的第一SI消息中的调度信息来接收所需的***信息块SIB。
在本实施例中，SI请求消息可以指示所请求的一个或更多个SIB的类别。如果UE仅需要获取一个SIB，则SI请求消息可以指示请求该类SIB，或者指示请求该类SIB对应的SI消息。如果UE需要接收的SIB有多个类 别，并且分布在不同的SI消息中，那么UE发送的SI请求消息可以请求一个或者多个SIB。
备选地，第二接收单元220可以被配置为将SI请求消息发送一次或更多次。例如，如果UE需要获取SIBx和SIBy，并且SIBx和SIBy分布在不同的SI消息中，那么UE可以发送一次SI请求消息，请求基站发送SIBx和SIBy。然后，UE在SIBx和SIBy对应的SI消息的调度时刻去接收SIBx和SIBy。或者，UE可以根据SIBx和SIBy出现的调度时刻的先后顺序，首先发送SI请求信息以请求基站发送SIBx，然后接收SIBx；接着，UE发送SI请求信息以请求基站发送SIBy,然后接收SIBy。
备选地，第二接收单元220可以被配置为根据当前时刻与目标SIB即将到来的调度时刻之间的时间距离，确定发送SI请求消息的时刻。对于UE发送SI请求消息的时刻可以有如下方案：UE先确认当前时刻，如果当前时刻距离目标SIB即将到来的调度时刻还有较长的时间，则UE最晚可在调度时刻之前的某个时刻发送SI请求消息。例如，最晚在调度时刻之前的n个子帧长度前，n的取值可以根据基站的请求处理时延来定义。如果小于n个子帧，则UE可以先不发送SI请求消息，而是在调度时刻尝试接收。如果有其他UE在这之前请求了该SIB，那么UE是有可能接收到该SIB的。如果UE没有收到，则在下一个调度时刻来临之前，发送SI请求消息。
备选地，第二接收单元220可以被配置为在指定的资源上发送SI请求消息。这是因为，UE发送SI请求消息的时刻还可能受到允许发送该请求消息的资源的限制。基站可以指定发送SI请求消息的资源(例如包括时间和频率资源)。相应地，UE最晚应在离即将到来的调度时刻最近的一个可用的资源上发送该请求信息。
在发送了SI请求消息后，第二接收单元220可以以如下方式来接收所需的***信息块SIB：
(1)根据所接收的SI消息中的调度信息，计算SI消息出现的位置或\和持续时间。在该出现的位置或\和持续时间中，在对应的下行链路信道上接收数据分组。
(2)根据所接收的SI消息中的调度信息，计算接收定时器的运行期间。在定时器的运行期间，在对应的下行链路信道上接收数据分组。
(3)根据预先配置的信息，启动接收定时器。在定时器的运行期间，根据调度信息指示的时刻，在对应的下行链路信道上接收数据分组。
在定时器运行期间，可能有多个调度时刻出现。如果UE在第一个调度时刻没有收到请求的SIB(或者SI消息)，则可以在第二个调度时刻继续接收，以此类推，直到正确接收到SIB(或者SI消息)。如果定时器超时且仍未正确接收请求的***信息，那么在定时器超时之后可以重新发送SI请求消息。
由于UE需要接收的SIB包含在SI消息中，所以UE发送的***信息请求消息可以是请求该SIB的或者请求对应的SI消息。相应的，如果UE请求的是SIB，基站可以在对应时刻发送仅携带该SIB的SI消息，也可以发送携带该SIB以及其他包含在该SI消息中的SIB的SI消息，因为其他SIB可以由其他的UE来请求。如果SI消息中携带了多个SIB，而UE仅需要获取其中的一个SIB，那么UE可以将该SI消息全部接收下来，然后保留需要的SIB，丢弃其他不要的SIB。或者，可以在SI消息的预定义中定义不同SIB分布的区域。这样，UE可以仅接收其中包含SIB的部分，而不需要全部接收。
采用上述实施例，能够在满足UE获取信息的需求的同时避免不必要的开销，节约***资源。
图3是示出了根据本申请一个实施例的发送***信息的方法的流程图。如图3所示，方法300在步骤S310处开始。
在步骤S320，将与***信息块SIB有关的种类信息以及该SIB的种类所属的第二***信息SI消息的调度信息包括在要发送的第一SI消息中。其中，调度信息包括第二SI消息出现的时刻以及指示第二SI消息是否会被广播的指示信息。
在步骤S330，如果所述指示信息指示第二SI消息没有被广播，则接收SI请求消息并在指定的调度时刻发送第二SI消息。
然后，方法300在步骤S340处结束。
优选地，当指示信息指示SI消息被广播时，SI消息在所有的调度时刻上出现。当指示信息指示SI消息未被广播时，SI消息不会在所有的调度时 刻上出现。如果指示信息指示第二SI消息没有被广播，则首先接收SI请求消息，并根据所接收的第一SI消息中的调度信息来发送***信息块SIB。
图4是示出了根据本申请一个实施例的接收***信息的方法的流程图。如图4所示，方法400在步骤S410处开始。
在步骤S420，接收第一***信息SI消息。其中，第一***信息SI消息包括与***信息块SIB有关的种类信息以及该SIB的种类所属的第二***信息SI消息的调度信息。调度信息包括第二SI消息出现的时刻以及指示第二SI消息是否会被广播的指示信息。
在步骤S430，判断指示信息是否指示SI消息已经被广播。如果指示信息指示第二SI消息已经被广播，则在步骤S440处，根据所接收的SI消息中的调度信息，接收所需的***信息块SIB。或者，如果指示信息指示第二SI消息没有被广播，则在步骤S450处，先发送SI请求消息，然后根据所接收的SI消息中的调度信息来接收所需的***信息块SIB。
优选地，接收所需的***信息块SIB可以包括：根据所接收的第一SI消息中的调度信息，计算第二SI消息出现的位置或\和持续时间。在该持续时间中，在对应的下行链路信道上接收数据分组。
优选地，接收所需的***信息块SIB可以包括：根据所接收的第一SI消息中的调度信息，计算接收定时器的运行期间。在定时器的运行期间，在对应的下行链路信道上接收数据分组。
优选地，接收所需的***信息块SIB可以包括：根据预先配置的信息，启动接收定时器。在定时器的运行期间，根据调度信息指示的时刻，在对应的下行链路信道上接收数据分组。
优选地，SI请求消息指示所请求的一个或更多个SIB的类别。另外，SI请求消息可以被发送一次或更多次。
优选地，可以根据当前时刻与目标SIB即将到来的调度时刻之间的时间距离，确定发送SI请求消息的时刻。优选地，可以在指定的资源上发送所述SI请求消息。
最后，方法400在步骤S460处结束。
应该理解，本申请的上述实施例可以通过软件、硬件或者软件和硬件两者的结合来实现。例如，上述实施例中的装置内的各种组件可以通过多种器件来实现，这些器件包括但不限于：模拟电路、数字电路、通用处理器、数字信号处理(DSP)电路、可编程处理器、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、可编程逻辑器件(CPLD)，等等。
此外，这里所公开的本申请的实施例可以在计算机程序产品上实现。更具体地，该计算机程序产品是如下的一种产品：具有计算机可读介质，计算机可读介质上编码有计算机程序逻辑，当在计算设备上执行时，该计算机程序逻辑提供相关的操作以实现本申请的上述技术方案。当在计算***的至少一个处理器上执行时，计算机程序逻辑使得处理器执行本申请实施例所述的操作(方法)。本申请的这种设置典型地提供为设置或编码在例如光介质(例如CD-ROM)、软盘或硬盘等的计算机可读介质上的软件、代码和/或其他数据结构、或者诸如一个或多个ROM或RAM或PROM芯片上的固件或微代码的其他介质、或一个或多个模块中的可下载的软件图像、共享数据库等。软件或固件或这种配置可安装在计算设备上，以使得计算设备中的一个或多个处理器执行本申请实施例所描述的技术方案。
运行在根据本发明的设备上的程序可以是通过控制中央处理单元(CPU)来使计算机实现本发明的实施例功能的程序。该程序或由该程序处理的信息可以临时存储在易失性存储器(如随机存取存储器RAM)、硬盘驱动器(HDD)、非易失性存储器(如闪速存储器)、或其他存储器***中。
用于实现本发明各实施例功能的程序可以记录在计算机可读记录介质上。可以通过使计算机***读取记录在所述记录介质上的程序并执行这些程序来实现相应的功能。此处的所谓“计算机***”可以是嵌入在该设备中的计算机***，可以包括操作***或硬件(如***设备)。“计算机可读记录介质”可以是半导体记录介质、光学记录介质、磁性记录介质、短时动态存储程序的记录介质、或计算机可读的任何其他记录介质。
用在上述实施例中的设备的各种特征或功能模块可以通过电路(例如，单片或多片集成电路)来实现或执行。设计用于执行本说明书所描述的功能的电路可以包括通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)、或其他可编程逻辑器件、分立的门 或晶体管逻辑、分立的硬件组件、或上述器件的任意组合。通用处理器可以是微处理器，也可以是任何现有的处理器、控制器、微控制器、或状态机。上述电路可以是数字电路，也可以是模拟电路。因半导体技术的进步而出现了替代现有集成电路的新的集成电路技术的情况下，本发明的一个或多个实施例也可以使用这些新的集成电路技术来实现。
此外，本发明并不局限于上述实施例。尽管已经描述了所述实施例的各种示例，但本发明并不局限于此。安装在室内或室外的固定或非移动电子设备可以用作终端设备或通信设备，如AV设备、厨房设备、清洁设备、空调、办公设备、自动贩售机、以及其他家用电器等。
如上，已经参考附图对本发明的实施例进行了详细描述。但是，具体的结构并不局限于上述实施例，本发明也包括不偏离本发明主旨的任何设计改动。另外，可以在权利要求的范围内对本发明进行多种改动，通过适当地组合不同实施例所公开的技术手段所得到的实施例也包含在本发明的技术范围内。此外，上述实施例中所描述的具有相同效果的组件可以相互替代。

Claims (20)

  1. 一种由用户设备执行的方法，包括：
    接收第一***信息SI消息，其中，所述第一***信息SI消息包括与***信息块SIB有关的种类信息以及该SIB的种类所属的第二***信息SI消息的调度信息，所述调度信息包括所述第二SI消息出现的时刻以及指示所述第二SI消息是否会被广播的指示信息；以及
    如果所述指示信息指示所述第二SI消息没有被广播，则发送SI请求消息，并根据所接收的第一SI消息中的调度信息来接收所需的***信息块SIB。
  2. 根据权利要求1所述的方法，如果所述指示信息指示所述第二SI消息已经被广播，则根据所接收的第一SI消息中的调度信息，接收所需的***信息块SIB。
  3. 根据权利要求1或2所述的方法，其中，接收所需的***信息块SIB包括：
    根据所接收的第一SI消息中的调度信息，计算第二SI消息出现的位置或\和持续时间；以及
    在所述位置或\和持续时间中，在对应的下行链路信道上接收数据分组。
  4. 根据权利要求1或2所述的方法，其中，接收所需的***信息块SIB包括：
    根据所接收的第一SI消息中的调度信息，计算接收定时器的运行期间；以及
    在定时器的运行期间，在对应的下行链路信道上接收数据分组。
  5. 根据权利要求1或2所述的方法，其中，接收所需的***信息块SIB包括：
    根据预先配置的信息，启动接收定时器；以及
    在定时器的运行期间，根据所述调度信息指示的时刻，在对应的下行链路信道上接收数据分组。
  6. 根据权利要求1所述的方法，其中，所述SI请求消息指示所请求的一个或更多个SIB的类别。
  7. 根据权利要求1或6所述的方法，其中，所述SI请求消息被发送一次或更多次。
  8. 根据权利要求1所述的方法，其中，根据当前时刻与目标SIB即将到来的调度时刻之间的时间距离，确定发送所述SI请求消息的时刻。
  9. 根据权利要求1所述的方法，其中，在指定的资源上发送所述SI请求消息。
  10. 一种由基站执行的方法，包括：
    将与***信息块SIB有关的种类信息以及该SIB的种类所属的第二***信息SI消息的调度信息包括在要发送的第一SI消息中，其中，所述调度信息包括所述第二SI消息出现的时刻以及指示所述第二SI消息是否会被广播的指示信息；以及
    如果所述指示信息指示所述第二SI消息没有被广播，则接收SI请求消息并在指定的调度时刻发送所述第二SI消息。
  11. 一种用户设备，包括：
    第一接收单元，被配置为：接收第一***信息SI消息，其中，所述第一***信息SI消息包括与***信息块SIB有关的种类信息以及该SIB的种类所属的第二***信息SI消息的调度信息，所述调度信息包括所述第二SI消息出现的时刻以及指示所述第二SI消息是否会被广播的指示信息；以及第二接收单元，被配置为：如果所述指示信息指示所述第二SI消息没有被广播，则发送SI请求消息，并根据所接收的第一SI消息中的调度信息来接收所需的***信息块SIB。
  12. 根据权利要求11所述的用户设备，其中，第二接收单元被配置为：如果所述指示信息指示所述第二SI消息已经被广播，则根据所接收的第一SI消息中的调度信息，接收所需的***信息块SIB。
  13. 根据权利要求11或12所述的用户设备，其中，第二接收单元被配置为：
    根据所接收的第一SI消息中的调度信息，计算第二SI消息出现的位置和持续时间；以及
    在所述持续时间中，在对应的下行链路信道上接收数据分组。
  14. 根据权利要求11或12所述的用户设备，其中，第二接收单元被配置为：
    根据所接收的第一SI消息中的调度信息，计算接收定时器的运行期间；以及
    在定时器的运行期间，在对应的下行链路信道上接收数据分组。
  15. 根据权利要求11或12所述的用户设备，其中，第二接收单元被配置为：
    根据预先配置的信息，启动接收定时器；以及
    在定时器的运行期间，根据所述调度信息指示的时刻，在对应的下行链路信道上接收数据分组。
  16. 根据权利要求11所述的用户设备，其中，所述SI请求消息指示所请求的一个或更多个SIB的类别。
  17. 根据权利要求11或16所述的用户设备，其中，第二接收单元被配置为：将所述SI请求消息发送一次或更多次。
  18. 根据权利要求11所述的用户设备，其中，第二接收单元被配置为：根据当前时刻与目标SIB即将到来的调度时刻之间的时间距离，确定发送所述SI请求消息的时刻。
  19. 根据权利要求11所述的用户设备，其中，第二接收单元被配置为：在指定的资源上发送所述SI请求消息。
  20. 一种基站，包括：
    生成单元，被配置为：将与***信息块SIB有关的种类信息以及该SIB的种类所属的第二***信息SI消息的调度信息包括在要发送的第一SI消息中，其中，所述调度信息包括所述第二SI消息出现的时刻以及指示所述第二SI消息是否会被广播的指示信息；以及
    发送单元，被配置为：如果所述指示信息指示所述第二SI消息没有被广播，则接收SI请求消息并在指定的调度时刻发送所述第二SI消息。
PCT/CN2017/092957 2016-07-15 2017-07-14 发送和接收***消息的方法、基站和用户设备 WO2018010694A1 (zh)

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