WO2009046663A1 - Procédé, système et dispositif de mappage de bloc d'informations système - Google Patents

Procédé, système et dispositif de mappage de bloc d'informations système Download PDF

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Publication number
WO2009046663A1
WO2009046663A1 PCT/CN2008/072493 CN2008072493W WO2009046663A1 WO 2009046663 A1 WO2009046663 A1 WO 2009046663A1 CN 2008072493 W CN2008072493 W CN 2008072493W WO 2009046663 A1 WO2009046663 A1 WO 2009046663A1
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WIPO (PCT)
Prior art keywords
mapping
sib
system information
scheduling
different
Prior art date
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PCT/CN2008/072493
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English (en)
French (fr)
Inventor
Xiaofei Ma
Yinghua Huang
Boyun Xie
Yinghui Yu
Mingjiang Xie
Zuoyan Zhu
Jun Chen
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.)
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Publication date
Application filed by Huawei Technologies Co., Ltd. filed Critical Huawei Technologies Co., Ltd.
Priority to EP08800970A priority Critical patent/EP2136483B1/en
Priority to CN200880107773.2A priority patent/CN101897131B/zh
Priority to AT08800970T priority patent/ATE513375T1/de
Publication of WO2009046663A1 publication Critical patent/WO2009046663A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
    • H04W72/1273Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H04W28/065Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information using assembly or disassembly of packets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Definitions

  • Embodiments of the present invention relate to the field of communications technologies, and in particular, to a method, system, and apparatus for system information block mapping. Background technique
  • SI System Information
  • WCDMA Wideband Code Division Multiple Access
  • NAS Non Access Stratum
  • UE User Equipment, user equipment
  • Timers and counters network-related identification, cell selection and cell reselection parameters, cell common physical channel parameters, measurement control information, neighbor cell list information, UE-assisted positioning information, and other cell-related or network-related information parameter.
  • SIBs System Information Blocks
  • each system information block contains system information of the same characteristic.
  • SIB1 mainly contains the timer and counter parameter information of the UE in idle mode.
  • MIB Master Information Block
  • MIB Master Information Block
  • SB Service Block
  • each SB contains scheduling information related to multiple system information blocks SIB.
  • the UE receives and analyzes the information in the MIB at an explicit location, and then reads the SB according to the information in the MIB, and then determines when to read the corresponding SIB information according to the scheduling information in the SB. Since each SIB is repeatedly present on the broadcast channel, the UE can read the SIB information according to the scheduling information in the SB without repeatedly reading the SIB information.
  • the mapping structure of system information is adjusted to concentrate the system information blocks with the same characteristics into one.
  • a SU Service Unit
  • the same characteristic mainly means that the period of information repetition is the same.
  • 3 to 4 scheduling units SU are finally formed in the LTE system.
  • system information mapping the SIB is first mapped to the SB.
  • One SB can contain multiple SIBs, and then multiple SBs with the same characteristics are grouped together to form one SU, and then the mapping between SIB, SB and SU is performed.
  • the relationship is placed in the MIB, and the MIB is mapped to the BCH (Broadcast Channel), as shown in Figure 3.
  • SB is mapped to SU1
  • SU1 is mapped to the downlink shared channel with other SUs.
  • the terminal can learn the mapping relationship between the SIB, the SB, and the SU by receiving and analyzing the information in the MIB. According to the mapping relationship, the terminal can know when to read the SU. After reading the SU, The terminal can then read the SB and then determine when to read the corresponding SIB information based on the scheduling information in the SB.
  • the embodiment of the invention provides a method, a system and a device for mapping system information blocks, so as to map the system information block SIB to different scheduling units SU according to different application scenarios of the system, thereby improving the efficiency of the system.
  • an embodiment of the present invention provides a method for mapping a system information block, including: dividing system information into a system information block SIB; and dynamically mapping the SIB to a scheduling unit SU.
  • an embodiment of the present invention provides a communication system, including: a scheduling apparatus, configured to divide system information into a system information block SIB, dynamically map the SIB to a scheduling unit SU, and send the SU; And for acquiring the SU sent by the scheduling device.
  • a scheduling apparatus configured to divide system information into a system information block SIB, dynamically map the SIB to a scheduling unit SU, and send the SU; And for acquiring the SU sent by the scheduling device.
  • the embodiment of the present invention further provides a scheduling apparatus, including: a classification module, configured to divide system information into a system information block SIB; and a mapping module, configured to dynamically map the SIB divided by the classification module to a scheduling unit SU.
  • a scheduling apparatus including: a classification module, configured to divide system information into a system information block SIB; and a mapping module, configured to dynamically map the SIB divided by the classification module to a scheduling unit SU.
  • 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 structural diagram of a communication system according to an embodiment of the present invention.
  • FIG. 5 is a flowchart of a method for system information block mapping according to an embodiment of the present invention. detailed description
  • the embodiments of the present invention provide a method, a system, and a device for mapping a system information block.
  • a system information block is dynamically mapped to a scheduling unit according to different application scenarios of the system, and the system information block can be implemented. Different scheduling frequencies, so that a flexible coordination of system information overhead and system performance can be achieved, and the efficiency of the system is improved.
  • FIG. 4 it is a structural diagram of a communication system according to an embodiment of the present invention, which includes a scheduling device 1 and a terminal 2.
  • the scheduling device 1 is configured to divide the system information into system information blocks SIB, dynamically map the system information block SIB to the scheduling unit SU according to different application scenarios, and send the SU.
  • the scheduling device 1 reserves a resource in the SU, or SB, or MIB, or on the physical downlink control channel corresponding to the SU, SB, and MIB to save the SIB and SU mapping relationship.
  • the terminal 2 is configured to acquire the SU sent by the scheduling device.
  • the scheduling device 1 includes a mapping module 11, a sending module 12, a relationship saving module 13, and a classification module 14.
  • the classification module 14 is configured to divide the system information into a system information block SIB.
  • the mapping module 11 is configured to dynamically map the system information block SIB divided by the classification module 14 to the scheduling unit SU of different scheduling frequencies according to different application scenarios of the system, generally
  • the scheduling frequency of different SUs is different, but the scheduling frequency of different SUs can be the same.
  • the same SIB may be mapped to SUs of different scheduling frequencies in different cells, or the same SIB may be mapped to SUs of different scheduling frequencies in the same cell.
  • the scheduling frequency of the SU is specified as follows: The scheduling period of SU1 is the shortest, and the scheduling frequency is the highest. The scheduling periods of SU2, SU3, and SUn (n>3) are sequentially increased, and the scheduling frequency is sequentially decreased.
  • mapping the SIB to a lower-frequency SU for a cell with a small bandwidth can prevent the system information from occupying an excessive proportion of the entire bandwidth; and applying it to the SON (Self-Optimization Network,
  • the operator can control the mapping from the SIB to the SU to achieve the energy-saving effect; for the remote mountainous or late-night users requiring the service to be sparse, the SIB is mapped to the less frequent scheduling unit, so that the device can operate.
  • SIB can be mapped to a less frequent scheduling unit to reserve more resources for data transmission, thereby improving resource utilization and mitigating the load to some extent.
  • the SIB can be mapped to the scheduling unit with lower frequency, and the interference can be reduced to some extent by reducing the transmission frequency of the system information block.
  • the SIB can also be mapped to a higher-priority scheduling unit.
  • the SIB is remapped to the higher-priority scheduling unit.
  • the bandwidth of cell 1 is 1.25 MHz
  • the bandwidth of cell 2 is 2.5 MHz
  • SIBx is mapped to SU2 on cell 2. Since the scheduling frequency of SU3 is lower than the scheduling frequency of SU2, SIBx can be in the cell. 1 is mapped to SU3, because the frequency of repeated occurrence of SIBx is reduced, so the bandwidth occupation of SIBx on cell 1 is reduced; or in a certain period, because the load of the system is too heavy, SIBx is mapped to SU3 on cell 2. In another period, since the system overload is alleviated, the SIBx can be remapped on the cell 2 to the SU2.
  • the sending module 12 is configured to send the mapped module su according to the sending timing of the SU.
  • the relationship saving module 13 is configured to save the mapping relationship between the SIB and the SU obtained by the mapping module 11 in the SU, or in the SB, or in the MIB, or in the PDCCH corresponding to the SB, the SU, or the MIB. Relationship saving module 13 is used to save SIB-SU
  • the mapping relationship, the SIB-SU mapping relationship may be attached to the SU or the SB or the MIB, or on the physical downlink control channel corresponding to the SU, SB, MIB, or the SIB-SU mapping relationship may be simultaneously saved in the SU and On the SB, or both the SU and the MIB, or both on the SB and the MIB, or on the SU, SB, and MIB, or in the above mode, on the physical downlink control channel of the corresponding SU, SB, or MIB.
  • FIG. 5 it is a flowchart of a method for mapping system information blocks according to an embodiment of the present invention, which specifically includes the following steps:
  • step S501 the system information is divided into system information blocks SIB.
  • the system information can be divided into multiple SIBs according to characteristics, and each SIB contains system information of the same characteristic.
  • Step S502 dynamically mapping the system information block SIB to the scheduling unit SU.
  • the system information block SIB is dynamically mapped to the scheduling unit SU of different scheduling frequencies according to different application scenarios of the system.
  • the scheduling frequency of different SUs is different, but the scheduling frequency of different SUs may be the same.
  • the same SIB may be mapped to SUs of different scheduling frequencies in different cells, or the same SIB may be mapped to SUs of different scheduling frequencies in the same cell.
  • the scheduling frequency of SU is defined as follows: SU1 has the shortest scheduling period and the highest scheduling frequency.
  • the scheduling periods of SU2, SU3, and SUn (n ⁇ 3) increase sequentially, and the scheduling frequency decreases in turn.
  • the SIB is mapped to a lower-frequency SU for a small-band cell, which prevents the system information from occupying an excessive proportion of the entire bandwidth.
  • the operator can control the SIB.
  • mapping SIBs to less frequent scheduling units can save energy for equipment operators;
  • the cell can map the SIB to the scheduling unit with lower frequency, and reserve more resources for data transmission, thereby improving resource utilization and alleviating the overloaded situation to a certain extent;
  • the SIB can be mapped to a lower-priority scheduling unit, and the interference can be reduced to some extent by reducing the transmission frequency of the system information block.
  • the SIB can also be mapped to a higher-priority scheduling unit.
  • the SIB is remapped to the higher-priority scheduling unit.
  • the bandwidth of cell 1 is 1.25 MHz
  • the bandwidth of cell 2 is 2.5 MHz
  • SIBx is mapped to SU2 on cell 2. Since the scheduling frequency of SU3 is lower than the scheduling frequency of SU2, SIBx can be in the cell. 1 is mapped to SU3, because the frequency of repeated occurrence of SIBx is reduced, so the bandwidth occupation of SIBx on cell 1 is reduced; or in a certain period, because the load of the system is too heavy, SIBx is mapped to SU3 on cell 2. In another period, since the system overload is alleviated, the SIBx can be remapped on the cell 2 to the SU2.
  • the step S503 may be further included.
  • Step S503 Send the SU according to the sending timing of the scheduling unit SU.
  • the embodiment of the present invention reserves a mapping relationship between a resource attached to the SIB-SU on each SU or SB or MIB, or on a downlink control channel corresponding to the SU, SB, and MIB, and may also map the SIB-SU.
  • the relationship is saved on the SU and SB at the same time, or both on the SU and MIB, or on the SB and MIB, or on the SU, SB, and MIB, or in the SU, SB, or MIB.
  • the physical downlink control channel is stored on the physical downlink control channel corresponding to the SU and the SB, or is stored on the physical downlink control channel corresponding to the SU and the MIB, or is stored on the physical downlink control channel corresponding to the SB and the MIB. Or stored on the physical downlink control channel corresponding to the SU, SB, and MIB.
  • the mapping domain of the SIB-SU of the terminal can obtain the mapping relationship between the SIB and the SU, so that the SIB mapped to the SU can be read.
  • the system information block mapping method is to map the SIB to the SU according to different application scenarios of the system, and the terminal can obtain the SIB mapped to the SU by reading the mapping relationship between the SIB and the SU in the mapping domain of the SIB-SU.
  • the different scheduling frequency of the SIB improves the efficiency of the system.
  • Non-volatile storage medium which can be a CD-ROM, a USB flash drive, a mobile hard disk, etc.
  • a computer device may It is a personal computer, a server, or a network device, etc. that performs the methods described in various embodiments of the present invention.

Description

系统信息块映射的方法、 系统和装置 技术领域
本发明实施例涉及通信技术领域,特别涉及系统信息块映射的方 法、 系统和装置。 背景技术
在蜂窝系统中, SI ( System Information, 系统信息)是指某个小 区或多个小区的公共信息。 WCDMA ( Wideband Code Division Multiple Access, 宽带码分多址接入) 的系统信息可以包括以下几个 方面的内容: NAS ( Non Access Stratum, 非接入层) 系统消息、 UE ( User Equipment, 用户设备)相关的定时器和计数器、 网络相关的 标识、 小区选择和小区重选参数、 小区公共物理信道参数、 测量控制 信息、 邻小区列表信息、 UE辅助定位信息以及其它一些具有小区相 关或网络相关的信息参数。
由于系统信息的内容比较多,所以,按照特性将系统信息分成 SIB ( System Information Block, 系统信息块) , 每个系统信息块包含同 一特性的系统信息。 例如: SIB1主要包含 UE在空闲模式下的定时器 和计数器参数信 息 。 通常在 UMTS ( Universal Mobile Telecommunications System , 通用移动通信系统) 中, 系统消息的结 构是树状的, 如图 1所示, 根节点是 MIB ( Master Information Block, 主消息块) , MIB包括一个或两个 SB ( Scheduling Block, 调度块) , 每个 SB中包含与多个系统信息块 SIB相关的调度信息。 UE在明确的位 置接收并分析 MIB中的信息, 然后根据 MIB中的信息读取 SB , 再根据 SB中的调度信息确定在什么时候去读取相应的 SIB信息。 由于各个 SIB在广播信道上是重复出现的, 所以, UE可以根据 SB中的调度信息 来读取 SIB信息, 而不用去重复地读取 SIB信息。
在 LTE ( Long Term Evolution, 长期演进) 系统中, 将系统信息 的映射结构做了一定的调整,把具有相同特性的系统信息块集中到一 起形成一个 SU ( Scheduling Unit, 调度单元) , 该相同特性主要是指 信息重复的周期相同, 如图 2所示, 最终在 LTE系统中形成了 3 ~ 4个 调度单元 SU。 在系统信息映射时, 先将 SIB映射到 SB上, 一个 SB中 可以包含多个 SIB , 再将多个具有相同特性的 SB集中到一起形成一个 SU, 然后将 SIB、 SB和 SU之间的映射关系放在 MIB中, 并将该 MIB 映射到 BCH ( Broadcast Channel, 广播信道)上, 如图 3所示。 图 3中 将 SB映射到 SU1中, SU1再同其它 SU—起映射到下行共享信道上。这 样, 终端通过接收并分析 MIB中的信息, 就可获知 SIB、 SB和 SU之间 的映射关系, 根据该映射关系, 终端可获知何时去何处读取 SU, 在 读取了 SU之后, 终端进而可读取 SB, 然后根据该 SB中的调度信息就 可确定在什么时候去读取相应的 SIB信息。
现有技术中, 对于 SIB和 SU的映射并没有明确的界定和说明。 按照 UMTS通常的处理方式, 几个 SU的重复周期是固定的, 系统的 运行效率比较低。 发明内容
本发明实施例提供一种系统信息块映射的方法、 系统和装置, 以 实现根据系统不同的应用场景 ,将系统信息块 SIB映射到不同的调度 单元 SU上, 从而提高系统的效率。
为达到上述目的,本发明实施例一方面提供了一种系统信息块映 射的方法, 包括: 将系统信息分成系统信息块 SIB; 将所述 SIB动态 映射到调度单元 SU上。
另一方面,本发明实施例提供了一种通信系统, 包括:调度装置, 用于将系统信息分成系统信息块 SIB, 将所述 SIB动态映射到调度单 元 SU上,并发送所述 SU; 终端,用于获取所述调度装置发送的 SU。
再一方面, 本发明实施例还提供了一种调度装置, 包括: 分类模 块, 用于将系统信息分成系统信息块 SIB; 映射模块, 用于将所述分 类模块分成的 SIB动态映射到调度单元 SU上。 与现有技术相比, 本发明实施例具有以下优点: 通过本发明实施 例, 根据系统不同的应用场景, 进行动态映射, 将系统信息块映射到 不同调度频度的调度单元上, 从而提高了系统的效率。 附图说明
图 1为现有技术 UMTS下系统信息结构示意图;
图 2为现有技术调度单元构成示意图;
图 3为现有技术系统信息映射示意图;
图 4为本发明实施例通信系统的结构图;
图 5为本发明实施例系统信息块映射的方法的流程图。 具体实施方式
本发明实施例提供了一种系统信息块映射的方法、 系统和装置, 通过本发明实施例,才艮据系统不同的应用场景将系统信息块动态映射 到调度单元上, 可以实现系统信息块的不同调度频度, 从而能够从系 统信息开销和系统性能方面作一个灵活的协调, 提高了系统的效率。
如图 4所示, 为本发明实施例通信系统的结构图, 包括调度装置 1和终端 2。 调度装置 1用于将系统信息分成系统信息块 SIB , 根据 不同的应用场景将系统信息块 SIB动态映射到调度单元 SU上, 并发 送该 SU。 同时, 调度装置 1在 SU, 或 SB, 或 MIB中, 或在与该 SU、 SB、 MIB对应的物理下行控制信道上预留一块资源来保存 SIB 和 SU映射关系。
终端 2用于获取所述调度装置发送的 SU。
其中, 调度装置 1包括映射模块 11、 发送模块 12和关系保存模 块 13和分类模块 14。
分类模块 14 , 用于将系统信息分成系统信息块 SIB。
映射模块 11用于根据系统不同的应用场景将分类模块 14分成的 系统信息块 SIB动态映射到不同调度频度的调度单元 SU上, 一般情 况下, 不同 SU的调度频度不同,但不同 SU的调度频度也可以相同。 例如: 可以在不同的小区将同一 SIB映射到不同调度频度的 SU上, 也可以在相同的小区将同一 SIB映射到不同调度频度的 SU上。其中, 通常 SU的调度频度是这样规定的: SU1的调度周期最短, 调度频度 最高, SU2, SU3 , SUn ( n>3 ) 的调度周期依次增长, 调度频 度依次降低。 因此, 针对不同带宽的小区而言, 对于带宽小的小区将 SIB映射到频度较低的 SU上, 可以防止系统信息对整个带宽的占用 比例过高; 应用在 SON ( Self-Optimization Network , 自优化网络) 中, 运营商可以控制 SIB到 SU上的映射以便达到节能的效果; 对于 偏远山区或深夜用户要求服务稀少的时段,将 SIB映射到频度较低的 调度单元, 从而能为设备运营商节省能耗; 对于负载过重的小区, 可 以将 SIB映射到频度较低的调度单元, 为数据传输预留更多的资源, 从而提高了资源利用率, 并在一定程度上緩解了负载过重的情况; 对 于干扰过重的情况, 可以将 SIB映射到频度较低的调度单元, 由于降 低了系统信息块的发送频度, 能够在一定程度上降低干扰。
同样,在一定的条件下也可以将 SIB向频度较高的调度单元上映 射, 例如当负载过重的情况解除的时候, 重新将 SIB映射到频度较高 的调度单元上。 例如: 假定小区 1的带宽为 1.25MHz, 小区 2的带宽 为 2.5MHz, 假定 SIBx在小区 2上映射到 SU2上, 由于 SU3的调度 频度低于 SU2的调度频度, 于是可以将 SIBx在小区 1上映射到 SU3 上, 由于 SIBx重复出现的频率降低, 所以降低了 SIBx在小区 1上的 带宽占用; 或者在某一时段, 由于系统的负载过重, 于是在小区 2上 将 SIBx映射到 SU3上, 在另一时段, 由于系统负载过重的情况得到 了緩解, 因此可以将 SIBx在小区 2上重新映射到 SU2上。
发送模块 12, 用于按照 SU的发送时机发送映射模块映射后的 su。
关系保存模块 13 ,用于将映射模块 11得到的 SIB和 SU的映 射关系保存 SU中; 或保存在 SB中,或 MIB中,或保存在与 SB、 SU或 MIB对应的 PDCCH中。关系保存模块 13用于保存 SIB-SU 的映射关系, SIB-SU映射关系可以附着在 SU或 SB或 MIB上, 或在与该 SU、 SB、 MIB对应的物理下行控制信道上, 也可以将 SIB-SU的映射关系同时保存在 SU和 SB上, 或同时保存 SU和 MIB上, 或同时保存在 SB和 MIB上, 或同时保存在 SU、 SB和 MIB上, 也可以按照上述模式保存在对应 SU、 SB或 MIB的物理 下行控制信道上。这样,终端 2通过读取该 SIB-SU的映射域就可 获取该 SIB和 SU的映射关系, 从而可以读取映射到该 SU上的 SIB。 如图 5所示, 为本发明实施例系统信息块映射的方法的流程图, 具体包括以下步骤:
步骤 S501 , 将系统信息分成系统信息块 SIB。
由于系统信息的内容比较多,所以可以按照特性将系统信息分成 多个 SIB , 每个 SIB中包含同一特性的系统信息。
步骤 S502, 将系统信息块 SIB动态映射到调度单元 SU上。 本发明实施例根据系统不同的应用场景将系统信息块 SIB 动态 映射到不同调度频度的调度单元 SU上, 一般情况下, 不同 SU的调 度频度不同, 但不同 SU的调度频度也可以相同。 例如: 可以在不同 的小区将同一 SIB映射到不同调度频度的 SU上, 也可以在相同的小 区将同一 SIB映射到不同调度频度的 SU上。 其中, SU的调度频度 是这样规定的: SU1的调度周期最短,调度频度最高, SU2, SU3 , SUn ( n≥3 ) 的调度周期依次增长, 调度频度依次降低。 因此, 针对 不同带宽的小区而言, 对于带宽小的小区将 SIB 映射到频度较低的 SU上, 可以防止系统信息对整个带宽的占用比例过高; 应用在 SON 中, 运营商可以控制 SIB到 SU上的映射以便达到节能的效果; 对于 偏远山区或深夜用户要求服务稀少的时段,将 SIB映射到频度较低的 调度单元, 从而能为设备运营商节省能耗; 对于负载过重的小区, 可 以将 SIB映射到频度较低的调度单元, 为数据传输预留更多的资源, 从而提高了资源利用率, 并在一定程度上緩解了负载过重的情况; 对 于干扰过重的情况, 可以将 SIB映射到频度较低的调度单元, 由于降 低了系统信息块的发送频度, 能够在一定程度上降低干扰。
同样,在一定的条件下也可以将 SIB向频度较高的调度单元上映 射, 例如当负载过重的情况解除的时候, 重新将 SIB映射到频度较高 的调度单元上。 例如: 假定小区 1的带宽为 1.25MHz, 小区 2的带宽 为 2.5MHz, 假定 SIBx在小区 2上映射到 SU2上, 由于 SU3的调度 频度低于 SU2的调度频度, 于是可以将 SIBx在小区 1上映射到 SU3 上, 由于 SIBx重复出现的频率降低, 所以降低了 SIBx在小区 1上的 带宽占用; 或者在某一时段, 由于系统的负载过重, 于是在小区 2上 将 SIBx映射到 SU3上, 在另一时段, 由于系统负载过重的情况得到 了緩解, 因此可以将 SIBx在小区 2上重新映射到 SU2上。
在以上系统不同的应用场景下, 在 SIB和 SU之间动态建立好映 射关系之后, 还可以进一步包括步骤 S503。
步骤 S503 , 按照调度单元 SU的发送时机发送该 SU。
另外, 本发明实施例在每个 SU或 SB或 MIB上, 或在与该 SU、 SB、 MIB对应的下行控制信道上预留一块资源附着 SIB-SU的映射关 系,也可以将 SIB-SU映射关系同时保存在 SU和 SB上,或同时保存 SU和 MIB上, 或同时保存在 SB和 MIB上, 或同时保存在 SU、 SB 和 MIB上, 也可以保存在分别与 SU、 SB或 MIB对应的物理下行控 制信道上, 或保存在与 SU和 SB对应的物理下行控制信道上, 或保 存在与 SU和 MIB对应的物理下行控制信道上, 或保存在与 SB和 MIB对应的物理下行控制信道上, 或保存在与 SU、 SB和 MIB对应 的物理下行控制信道上。
终端该 SIB-SU的映射域就可获取该 SIB和 SU的映射关系, 从 而可以读取映射到该 SU上的 SIB。
上述系统信息块映射的方法,将 SIB根据系统不同的应用场景映 射到 SU上, 终端通过读取 SIB-SU的映射域中 SIB和 SU的映射关 系就可获取映射到 SU上的 SIB, 从而实现了 SIB的不同调度频度, 提高了系统的效率。 通过以上的实施方式的描述,本领域的技术人员可以清楚地了解 到本发明可以通过硬件实现,也可以可借助软件加必要的通用硬件平 台的方式来实现基于这样的理解,本发明的技术方案可以以软件产品 的形式体现出来, 该软件产品可以存储在一个非易失性存储介质(可 以是 CD-ROM, U盘, 移动硬盘等) 中, 包括若干指令用以使得一 台计算机设备(可以是个人计算机, 服务器, 或者网络设备等)执行 本发明各个实施例所述的方法。
总之, 以上所述仅为本发明的较佳实施例而已, 并非用于限定本 发明的保护范围。 凡在本发明的精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护范围之内。

Claims

权利要求
1、 一种系统信息块映射的方法, 其特征在于, 包括:
将系统信息分成系统信息块 SIB;
将所述 SIB动态映射到调度单元 SU上。
2、 如权利要求 1所述系统信息块映射的方法, 其特征在于, 所 述将 SIB动态映射到 SU上, 包括: 将所述 SIB映射到不同调度频度 的 SU上。
3、 如权利要求 2所述系统信息块映射的方法, 其特征在于, 所 述将 SIB映射到不同调度频度的 SU上, 包括:
基于不同的小区带宽,将所述 SIB映射到不同调度频度的 SU上; 或者,
基于不同的自优化网络 SON场景, 将所述 SIB映射到不同调度 频度的 SU上; 或者,
基于小区不同的负载状态, 将所述 SIB 映射到不同调度频度的 SU上; 或者,
基于不同的干扰状态,将所述 SIB映射到不同调度频度的 SU上。
4、 如权利要求 1所述系统信息块映射的方法, 其特征在于, 所 述 SIB和所述 SU的映射关系保存在所述 SU中。
5、 如权利要求 1所述系统信息块映射的方法, 其特征在于, 在 将所述 SIB动态映射到调度单元 SU上之后, 还包括: 按照所述 SU 的发送时机发送所述 SU。
6、 如权利要求 4所述系统信息块映射的方法, 其特征在于, 在 所述按照 SU的发送时机发送所述 SU之后, 还包括: 终端获取所述 su。
7、 如权利要求 1所述系统信息块映射的方法, 其特征在于, 所 述 SIB和所述 SU的映射关系保存在调度块 SB中, 或主信息块 MIB 中, 或
或保存在与所述 SB、 所述 SU或所述 MIB对应的物理下行控制 信道 PDCCH中。
8、 一种调度装置, 其特征在于, 包括:
分类模块, 用于将系统信息分成系统信息块 SIB;
映射模块,用于将所述分类模块分成的 SIB动态映射到调度单元 SU上。
9、 如权利要求 8所述的调度装置, 其特征在于, 所述调度装置 还包括:
发送模块, 用于按照所述 SU的发送时机发送所述映射模块映射 后的 SU。
10、 如权利要求 8或 9所述调度装置, 其特征在于, 还包括: 关 系保存模块, 用于将所述动态映射模块得到的所述 SIB和所述 SU的 映射关系保存所述 SU中; 或
保存在 SB中, 或 MIB中, 或保存在与所述 SB、 所述 SU或所 述 MIB对应的 PDCCH中。
11、 一种通信系统, 其特征在于, 包括:
调度装置, 用于将系统信息分成系统信息块 SIB, 将所述 SIB动 态映射到调度单元 SU上, 并发送所述 SU;
终端, 用于获取所述调度装置发送的 SU。
PCT/CN2008/072493 2007-09-30 2008-09-24 Procédé, système et dispositif de mappage de bloc d'informations système WO2009046663A1 (fr)

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