WO2009092303A1 - Procédé, dispositif et terminal de programmation d'informations système - Google Patents

Procédé, dispositif et terminal de programmation d'informations système Download PDF

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Publication number
WO2009092303A1
WO2009092303A1 PCT/CN2009/070043 CN2009070043W WO2009092303A1 WO 2009092303 A1 WO2009092303 A1 WO 2009092303A1 CN 2009070043 W CN2009070043 W CN 2009070043W WO 2009092303 A1 WO2009092303 A1 WO 2009092303A1
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WO
WIPO (PCT)
Prior art keywords
information
scheduling
window
system information
unit
Prior art date
Application number
PCT/CN2009/070043
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English (en)
Chinese (zh)
Inventor
Xiaofei Ma
Zuoyan Zhu
Yinghua Huang
Mingjiang Xie
Wen Gao
Xiaoying Xu
Boyun Xie
Original Assignee
Huawei Technologies Co., Ltd.
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
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Publication of WO2009092303A1 publication Critical patent/WO2009092303A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/12—Wireless traffic scheduling

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a system information scheduling method, apparatus, and terminal. Background technique
  • SI system information
  • SIB system information blocks
  • SIB-1 mainly includes timer and counter parameter information of the user equipment (UE, User Equipment) in idle mode.
  • the structure of system information is tree-like.
  • the root node is a Master Information Block (MIB)
  • the MIB includes one or Two scheduling blocks (SB, Scheduling Block), each of which contains scheduling related information of multiple SIBs.
  • SIB on the broadcast channel BCH, Broadcast Channel
  • BCH Broadcast Channel
  • the scheduling information of these SIBs is in the MIB, and the UE reads the scheduling information of the SIB from the MIB, for example, the starting position of the SIB, the period of the SIB, the block information of the SIB, etc., at this time, the UE can know that the SIB will be Where does it occur, when the UE correctly receives an SIB, it does not have to repeat the reception until the SIB changes.
  • the structure of the SI is as shown in FIG. 2.
  • SIBs having the same characteristics are grouped together to form a scheduling unit (SU, Scheduling Unit).
  • SU is the basic unit of system information scheduling in the current LTE system.
  • the same characteristics here mainly refer to the cycle of information repetition.
  • there are currently 4 scheduling units SU determined in the protocol the MIB is mapped to the BCH, and the SB is in the most frequently scheduled Scheduling Unit (SU-1), and the SU-1 The other SUs are mapped to the downlink shared channel (DL-SCH, Downlink Shared Channel).
  • DL-SCH Downlink Shared Channel
  • Both MIB and SU-1 have fixed scheduling weeks Periods are 40ms and 80ms respectively.
  • the inventors have found through research that in the prior art scheduling scheme of SU, if SU-1 is transmitted on multiple consecutive or non-contiguous subframes, the UE cannot correctly receive SU-1.
  • the embodiment of the invention provides a system information scheduling method, device and terminal, which enable the UE to correctly receive the SU-1, and thus can receive the complete system information correctly and effectively.
  • the embodiment of the invention provides a system information scheduling method, including:
  • the mapping information of the system information block SIB and the SU-n is obtained from the information of the SU-1, and all system information is acquired according to the correspondence between the SIB indicated by the mapping information and the SU-n.
  • the embodiment of the invention further provides a system information scheduling device, including:
  • a first acquiring unit configured to acquire scheduling information of SU-1
  • a second acquiring unit configured to acquire window information of the dynamic scheduling
  • a third obtaining unit configured to acquire mapping information of the system information blocks SIB and SU-n, ⁇ >1 from the information of the SU-1;
  • a receiving unit configured to receive information of the complete SU-1 according to the scheduling information of the SU-1 acquired by the first acquiring unit, and receive information of the other scheduling unit SU-n according to the window information acquired by the second acquiring unit, ⁇ >1; and acquiring all system information according to the correspondence between the SIB indicated by the mapping information acquired by the third obtaining unit and the SU-n.
  • an embodiment of the present invention further provides a terminal including the foregoing system information scheduling apparatus.
  • the UE can acquire the scheduling information of the SU-1, so that the SU-1 can be correctly received, and the possible error caused by the lack of the SU-1 scheduling information is avoided.
  • the UE can read the system information in the window flexibly, accurately and efficiently.
  • the information improves the efficiency of the UE receiving system information.
  • the specific correspondence between the SIB and the SU-n indicated by the mapping information of the SIB and the SU-n is obtained in the information of the SU-1, which may be accurate. Get specific SIB information.
  • the efficiency of the network side in system information scheduling and the efficiency of the UE receiving system information are improved.
  • FIG. 1 is a schematic diagram of a system information structure in a prior art UMTS
  • FIG. 2 is a schematic diagram showing the structure of a prior art scheduling unit
  • FIG. 4 is a flowchart of a system information scheduling method according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of window indication of dynamic scheduling of system information according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a window start position indication according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a window close to SU-1 scheduling according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram showing an offset of a window and an SU-1 scheduling in the embodiment of the present invention
  • FIG. 9 is a schematic diagram showing a fixed offset of a window and an SU-1 scheduling according to an embodiment of the present invention
  • FIG. 11 is a schematic diagram of implicitly indicating a window length by using Hopping in an embodiment of the present invention
  • FIG. 12 is a schematic structural diagram of a system information scheduling apparatus according to an embodiment of the present invention.
  • the embodiment of the invention provides a system information scheduling method, device and terminal, which enable the UE to correctly receive the SU-1, and thus can receive the complete system information correctly and effectively.
  • FIG. 4 it is a flowchart of a system information scheduling method according to Embodiment 1 of the present invention, which includes the following steps:
  • Step 401 The terminal acquires scheduling information of SU-1, and receives complete SU-1 information according to the scheduling information.
  • Step 402 The terminal acquires dynamically scheduled window information, and receives information of other scheduling units SU-n according to the window information, ⁇ >1;
  • Step 403 The terminal acquires the mapping information of the system information block SIB and the SU-n from the information of the SU-1, and acquires all the information according to the correspondence between the SIB and the SU-n indicated by the mapping information. System information.
  • the UE may read the scheduling information of the SU-1 from the Physical Downlink Control Channel (PDCCH), or acquire the scheduling information of the SU-1 in a fixed format.
  • PDCCH Physical Downlink Control Channel
  • the method for reading the scheduling information of the SU-1 from the PDCCH may be in the following two manners: Mode 1: Carrying an information indicator bit on the PDCCH, the length is 1 bit, to indicate that the subframe is behind the current subframe. Whether there is scheduling information of SU-1 is sent. For example, the scheduling information of SU-1 is sent on subframes #5, #6, #7, then on subframe #5, there will be 1 bit on the PDCCH to indicate whether there is SU-1 on subframe #6. Scheduling information transmission (0 means no, 1 means yes), the same reason for subframe#6, submframe#7.
  • Manner 2 Instructing the SU-1 length on the PDCCH, the length is variable, for example, indicated by 2 bits, then one, two, three, and four subframes can be represented.
  • the UE may also acquire scheduling information of SU-1 in a fixed format.
  • the length of SU-1 is fixed, such as 3 subframes, so that the UE can correctly read the scheduling information of SU-1.
  • the UE may receive information of other SUs through dynamically scheduled window information.
  • the UE determines whether there is a dynamically scheduled window in the window period. If there is no dynamically scheduled window, the UE does not need to acquire window-related scheduling information; if there is dynamic scheduling The window exists, and the network side notifies the UE of the specific scheduling information of the window.
  • the scheduling information may include two parameters: a start position of the window and a window length, or may only include a start position of the window.
  • the specific instructions are as follows:
  • FIG. 5 it is a schematic diagram of a window indication for dynamically scheduling system information according to an embodiment of the present invention.
  • the existence or non-existence of the dynamic scheduling window can be learned through the window indication information parameters, which can be implemented in the following two ways:
  • Method 1 The window indication information bit is placed in SU-1, and the length is 1 bit. 1 indicates that there is a dynamically scheduled window in the window period of SU-1 (fixed to 80ms); 0 indicates that there is no dynamically scheduled window in the window period of SU-1.
  • Manner 2 The window indication information bit is placed in the MIB, and the length is 1 bit. 1 indicates that there is a dynamically scheduled window in the window period of SU-1 (fixed to 80ms); 0 indicates that there is no dynamically scheduled window in the window period of SU-1.
  • the window start position indication can be as follows: Mode 1, as shown in FIG.
  • the dynamically scheduled window start position may be fixed at the start position of the SU-1 subframe, and the UE does not need additional information to obtain the dynamically scheduled window start position.
  • the start position of the dynamically scheduled window and the start position of the sub-frame scheduled by the SU-1 have a certain offset (offset) of the subframe, and the position indicated by the offset is flexible, and may be used according to the situation. Configured in SU-1.
  • the offset may be set to several subframes; for the TDD system, due to some
  • the window can be made to start from a subframe after SU-1 by setting the offset. In particular, if the offset is 0, then the window start position is the start position of the sub-frame scheduled next to SU-1.
  • Manner 3 As shown in FIG. 9, there is a fixed offset between the start position of the dynamically scheduled window and the start position of the SU-1 scheduled subframe. For example, SU-1 is fixed on subframe#5, and then dynamically scheduled.
  • the window start position can be set to subframe#7, which is 2 subframes after SU-1. This indication position is relatively fixed, and the UE does not need additional information to obtain the dynamically scheduled window start position.
  • the network side can also notify the UE of the window length so that the UE can stop reading the window.
  • FIG. 10 is a schematic diagram indicating the length of the window in SU-1. Take SU-1 and an offset as the window start position, for example, if the length of the window in SU-1 is 12 subframes, The offset of the window is 2 subframes, then the UE can calculate the position of the end of the window, that is, the window ends after 12 sub-frames after the start of the window or ends after 15 sub-frames after the start of SU-1.
  • the UE acquires the SIB information included in each SU through the mapping information of the SIB and the SU. Since the scheduling period and location of the SU-1 are fixed at present, the contents are SIB-1 and SB, and the content is also fixed, so the mapping information of SIB and SU does not include SU-1 and SIB-1.
  • N 3
  • SU-4 3
  • SIB and SU contains SIB-2, SIB-3; SU-3 contains SIB-4, SIB-5, SIB-6; SU-4 contains SIB-7, SIB-8.
  • mapping information of the SIB and each SU can be implemented in the following three ways, specifically: Method 1 is represented by a bitmap.
  • each SU uses 7 bits to indicate the status of SIB-2 ⁇ SIB-7, 1 means SIB is in SU, 0 means SIB is not in SU.
  • Each SIB has information about the SU where the SIB is located.
  • all SUs are represented by 2 bits, for example: 00 means SU-1, 01 means SU-2, 10 means SU-3, and 11 means SU-4.
  • All SIBs are represented by 3 bits, for example: 000 for SIB-1, 001 for SIB-2, 010 for SIB-3, 011 for SIB-4, 100 for SIB-5, 101 for SIB-6, 110 for SIB- 7, 111 represents SIB-8, and each SU enumerates the SIBs included in the SU.
  • the UE can acquire the scheduling information of the SU-1, so that the SU-1 can be correctly received, and the possible error caused by the lack of the SU-1 scheduling information is avoided.
  • the UE can read the system information in the window flexibly, accurately, and effectively, and improve the efficiency of the UE receiving the system information.
  • the specific correspondence between the SIB and the SU-n indicated by the mapping information of the SIB and the SU-n is obtained in the information of the SU-1, which may be accurate. Get specific SIB information.
  • the technical solutions provided by the embodiments of the present invention effectively compensate for some gaps and shortcomings in the current information scheduling mechanism of the LTE system, and also improve the efficiency of the network side in system information scheduling and the efficiency of the UE receiving system information.
  • the embodiments of the present invention can be applied to the current system information broadcasting process of LTE, and can be greatly improved. Dynamic scheduling of system information allows the UE to receive complete system information correctly and efficiently.
  • FIG. 12 is a schematic structural diagram of a system information scheduling apparatus according to an embodiment of the present invention.
  • the apparatus is applicable to a scenario in which SU-1 is sent in multiple consecutive or non-contiguous subframes.
  • the device includes: a first obtaining unit 121, a second obtaining unit 122, a third obtaining unit 123, and a receiving unit 120; wherein:
  • the first obtaining unit 121 is configured to acquire scheduling information of the SU-1.
  • the second obtaining unit 122 is configured to obtain dynamically scheduled window information.
  • the third obtaining unit 123 is configured to obtain, from the information of the SU-1, mapping information of the system information block SIB and each SU;
  • the receiving unit 120 is configured to receive information of the complete SU-1 according to the scheduling information of the SU-1 acquired by the first acquiring unit 121; and receive other scheduling units according to the window information acquired by the second acquiring unit 122.
  • the first acquiring unit 121 is configured to read scheduling information from a PDCCH corresponding to a SU-1 scheduled subframe.
  • the information indicating that the scheduling information is carried by the PDCCH indicates whether there is SU-1 transmission in a certain subframe subsequent to the current subframe, or indicates the number of subframes scheduled by SU-1 through the PDCCH.
  • the first acquiring unit 121 may include: a query subunit, configured to query a physical downlink control channel PDCCH corresponding to a SU-1 scheduled subframe; and a read subunit, configured to be used on the PDCCH Read scheduling information.
  • the system information scheduling apparatus may further include a determining unit 124, configured to determine whether a dynamically scheduled window exists in the window period, and when there is a dynamically scheduled window, trigger the second acquiring unit 122.
  • the determining unit 124 is configured to determine whether there is a dynamically scheduled window in the window period according to the window indication information bit in the SU-1 or the MIB.
  • the determining unit 124 may include: a determining subunit, configured to determine, according to a predetermined rule, a specific radio frame preset by the dynamically scheduled window; and a calculating subunit, configured to learn, according to the SFN calculation, whether the current radio frame satisfies a specific radio frame It is required to determine whether there is a dynamically scheduled window on the current radio frame.
  • the system information scheduling apparatus may be disposed in the terminal device, and the structure thereof may be adaptively modified according to actual conditions, and those skilled in the art may implement the invention without creative labor, and details are not described herein again.
  • the system information scheduling method, device and terminal provided by the embodiments of the present invention can be applied to the system information broadcast process of the current LTE system, and can greatly improve the dynamic scheduling of system information, so that the UE can receive the voice correctly and efficiently.
  • Complete system information For the scenario in which the SU-1 can be sent on multiple consecutive or non-contiguous subframes, the UE can obtain the scheduling information of the SU-1 by using the technical solution provided by the foregoing embodiment of the present invention, so that the SU can be correctly received. -1 , avoids possible errors due to lack of SU-1 scheduling information.
  • the UE can read the system information in the window flexibly, accurately, and effectively, and improve the efficiency of the UE receiving the system information, thereby making the UE more power-saving.
  • the specific SIB can be accurately obtained by acquiring the specific correspondence between the SIB and the other SUs indicated by the mapping information of the SIB and the SU in the information of the SU-1. information.
  • the technical solutions provided by the embodiments of the present invention effectively compensate for some gaps and shortcomings in the current information scheduling mechanism of the LTE system, and also improve the efficiency of the network side in system information scheduling and the efficiency of the UE receiving system information.
  • the invention may be described in the general context of computer-executable instructions executed by a computer, such as a program module.
  • program modules include routines, programs, objects, components, data structures, and the like that perform particular tasks or implement particular abstract data types.
  • the invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are connected through a communication network.
  • program modules can be located in both local and remote computer storage media including storage devices.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Procédé, dispositif et terminal de programmation d'informations système, le procédé comportant les étapes suivantes : un terminal obtient les informations de programmation de l'unité de programmation SU-1 la plus fréquemment répétée et reçoit l'ensemble des informations relatives à SU-1 en fonction des informations de programmation ; le terminal obtient des informations de fenêtre de programmation dynamique et reçoit des informations relatives à une autre unité de programmation SU-n en fonction des informations de fenêtre, avec n>1 ; le terminal obtient les informations de mappage du bloc d'informations système SIB et de SU-n à partir des informations relatives à SU-1 et obtient l'ensemble des informations système en fonction de la relation de correspondance entre le SIB et SU-n indiquée par les informations de mappage. En utilisant le procédé, le dispositif et le terminal selon la présente invention, l'UE peut recevoir correctement SU-1, et peut ensuite recevoir l'ensemble des informations système correctement et efficacement.
PCT/CN2009/070043 2008-01-08 2009-01-06 Procédé, dispositif et terminal de programmation d'informations système WO2009092303A1 (fr)

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CN2008100023169A CN101483903B (zh) 2008-01-08 2008-01-08 系统信息调度方法、装置及一种终端
CN200810002316.9 2008-01-08

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CN102369745B (zh) * 2009-03-16 2014-03-12 华为技术有限公司 一种系统信息的发送、接收方法及装置
CN101998486B (zh) * 2009-08-11 2015-05-20 中兴通讯股份有限公司 测量间隔的配置方法及装置
CN102421087B (zh) * 2010-09-28 2015-10-21 中兴通讯股份有限公司 一种系统帧号更新方法及系统
CN110233715B (zh) * 2013-09-12 2021-10-01 华为技术有限公司 一种信息获取的方法、终端、基站及系统
CN107040977B (zh) 2017-05-05 2019-11-12 宇龙计算机通信科技(深圳)有限公司 一种系统信息传输方法及相关设备
CN112100573B (zh) * 2020-09-22 2024-07-05 中国科学院国家空间科学中心 一种极化su(2)群到su(3)群的转换方法及系统

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