WO2014056307A1 - Procédé, station de base et système permettant de transmettre des informations système - Google Patents

Procédé, station de base et système permettant de transmettre des informations système Download PDF

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Publication number
WO2014056307A1
WO2014056307A1 PCT/CN2013/073385 CN2013073385W WO2014056307A1 WO 2014056307 A1 WO2014056307 A1 WO 2014056307A1 CN 2013073385 W CN2013073385 W CN 2013073385W WO 2014056307 A1 WO2014056307 A1 WO 2014056307A1
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WIPO (PCT)
Prior art keywords
system information
information
area
regional
regional system
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PCT/CN2013/073385
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English (en)
Chinese (zh)
Inventor
张佳胤
张磊
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华为技术有限公司
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Publication of WO2014056307A1 publication Critical patent/WO2014056307A1/fr

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Classifications

    • 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
    • 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

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a system information transmission method, a base station, and a system. Background technique
  • system information exists in two forms: a master information block (MIB) and a system information block (SIB).
  • MIB master information block
  • SIB system information block
  • Configuring system information for each cell ensures that the cell operates reliably in its environment.
  • UE user equipment
  • MIB master information block
  • SIB system information block
  • Configuring system information for each cell ensures that the cell operates reliably in its environment.
  • UE user equipment
  • the larger the radius of the cell the better.
  • it is proposed to divide the existing cell into more sub-cells. Therefore, a contradiction between switching and capacity is caused.
  • CRAN C-Radio Access Network
  • the MIB carries the transmission in the physical broadcast channel (PBCH)
  • the SIB carries the transmission in the physical downlink shared channel (PDSCH).
  • PBCH physical broadcast channel
  • PDSCH physical downlink shared channel
  • Embodiments of the present invention provide a system information transmission method, a base station, and a system, which can reduce downlink overhead and optimize network performance.
  • a first aspect of the embodiments of the present invention provides a system information transmission method, including: receiving global system information broadcasted by a base station in a cell, where the global system information includes configuration information of area system information of each area in the cell. ;
  • the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and area system information corresponding to each area system information. logo.
  • the configuration information includes: a number of items of regional system information in the cell and a composition of system information of each area.
  • the method Before the obtaining the area system information broadcast by the base station in the area according to the configuration information of the area system information, the method includes:
  • the area system information identifier is calculated according to the pre-configured identifier calculation rule.
  • the acquiring the regional system information that is broadcast by the base station in the area according to the configuration information of the area system information includes:
  • the acquiring the regional system information that is broadcast by the base station in the area according to the configuration information of the area system information includes:
  • the carrying manner of the configuration information includes:
  • a dedicated data domain hosted in existing global system information or / and, carried in dedicated global system information.
  • the area system information identifier includes: a predefined area system information radio network temporary identifier RI-RNTI.
  • a second aspect of the embodiments of the present invention further provides a system information transmission method, including
  • Broadcasting global system information in a cell where the global system information includes configuration information of area system information in the cell;
  • the corresponding area system information is broadcasted in each area of the cell according to the pre-configured area coverage information, so that the user equipment UE receives the area system information according to the configuration information.
  • the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and area system information corresponding to each area system information. And the configuration information includes: the number of items of the regional system information in the cell and the information of each area system Composition.
  • the carrying manner of the configuration information includes:
  • a dedicated data domain hosted in existing global system information or / and, carried in dedicated global system information.
  • the configuration information further includes: coverage area information of each area system information.
  • a third aspect of the embodiments of the present invention further provides a user equipment UE, including: a receiving unit, configured to receive global system information that is broadcast by a base station in a cell, where the global system information includes an area of each area in the cell. Configuration information of system information;
  • an obtaining unit configured to acquire, according to configuration information of the area system information received by the receiving unit, area system information that is broadcast by the base station in the area.
  • the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and regional system information corresponding to each area system information. logo.
  • the configuration information includes: a number of items of regional system information in the cell and a composition of system information of each area.
  • the UE further includes:
  • the calculating unit is configured to calculate the area system information identifier according to the pre-configured identifier calculation rule before the acquiring unit acquires the area system information broadcasted by the base station in the area according to the configuration information of the area system information.
  • the acquiring unit includes:
  • a first detecting module configured to detect, by using the area system information identifier, a physical downlink control channel PDCCH or an enhanced physical downlink control channel E-PDCCH; a first acquiring module, configured to: after the first detecting module detects the success,
  • a first demodulation module configured to demodulate the area system information from the physical downlink shared channel PDSCH according to the DCI acquired by the first acquiring module.
  • the configuration information further includes: coverage area information of each area system information.
  • the obtaining unit further includes:
  • a selection module configured to select an area system information identifier according to the UE location information and the coverage area information
  • a second detecting module configured to detect a PDCCH or an E-PDCCH by using the selected regional system information identifier
  • a second acquiring module configured to acquire, according to the second detection module, the corresponding DCI from the PDCCH or the E-PDCCH;
  • a second demodulation module configured to demodulate the area system information from the PDSCH according to the DCI acquired by the second obtaining module.
  • a fourth aspect of the embodiments of the present invention provides a base station, including:
  • a storage unit configured to store global system information and regional system information
  • a broadcast unit configured to broadcast global system information stored in the storage unit in a cell, where the global system information includes configuration information of area system information in the cell;
  • the broadcast unit is further configured to: broadcast the area system information corresponding to the area stored in the storage unit in each area of the cell according to the pre-configured area coverage information, so that the user equipment UE is according to the global
  • the system information receives the regional system information.
  • the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and area system information corresponding to each area system information. Identification; or, the configuration letter The information includes: the number of items of regional system information in the cell and the composition of system information of each area.
  • the configuration information further includes: coverage area information of each area system information.
  • a fifth aspect of the embodiments of the present invention further provides a system information transmission system, including: a user equipment UE; and a base station.
  • the UE is configured to receive global system information that is broadcast by the base station in the cell, where the global system information includes configuration information of the area system information in the cell, and the regional system information that is broadcast in the area according to the global system information. .
  • the base station is configured to broadcast global system information in a cell, where the global system information includes configuration information of area system information in the cell; and broadcast corresponding area system information in the area according to pre-configured area coverage information. So that the UE receives the regional system information according to the global system information.
  • the system information transmission method, the base station, and the system provided by the embodiment of the present invention broadcast global system information in a cell, where the global system information includes configuration information of the area system information in the cell, and then according to the pre-configured area coverage information. Transmitting the corresponding area system information in the area, so that the user equipment UE receives the area system information according to the configuration information.
  • the corresponding regional system information can be broadcasted for different areas, which reduces downlink overhead and improves.
  • the flexibility of system information configuration has optimized the performance of the entire network.
  • FIG. 1 is a flowchart of a system signal transmission method according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a system signal transmission method according to Embodiment 2 of the present invention
  • FIG. 3 is a flowchart of Embodiment 3 of the present invention
  • FIG. 4 is a flowchart of another system information transmission method in Embodiment 3 of the present invention
  • FIG. 5 is a schematic diagram of a composition of a user equipment UE according to Embodiment 4 of the present invention
  • 6 is a schematic structural diagram of another user equipment UE in Embodiment 4 of the present invention
  • FIG. 7 is a schematic structural diagram of a base station according to Embodiment 5 of the present invention
  • FIG. 8 is a schematic diagram of a composition of a user equipment UE according to Embodiment 6 of the present invention
  • FIG. 9 is a schematic structural diagram of a base station according to Embodiment 7 of the present invention.
  • Figure 10 is a schematic diagram showing the composition of a system information transmission system in an embodiment S of the present invention.
  • An embodiment of the present invention provides a system information transmission method. As shown in FIG. 1, the method includes: 101. Receive global system information broadcasted by a base station in a cell, where the global system information includes regional system information of each area in the cell. Configuration information.
  • the cell system information includes the global system information and the regional system information, where the global system information is applicable to all the user equipments (User Equipments, UEs) in the cell, and can be directly delivered through the broadcast, including the main system information.
  • Master Information Block (MIB) and System Information Block (System Information) SIB 1 in Block, SIB) The area system information may be configured differently for UEs in different areas of the cell, and the area system information applicable to UEs in different areas may be different.
  • the configuration information of the area system information includes: the number of items of the area system information in the cell, the composition of each area system information, and the area system information identifier corresponding to each area system information. 102. Acquire, according to configuration information of the area system information, area system information that is broadcast by the base station in the area.
  • the UE may obtain the area system information broadcast by the base station in the area according to the area system information identifier included in the configuration information.
  • the system information transmission method provided by the embodiment of the present invention receives the global system information broadcasted by the base station in the cell, and then receives the regional system information broadcasted in the area according to the configuration information of the regional system information in the cell included in the global system information.
  • the UEs in different areas can receive the regional system information broadcast by the base station for the area, which is reduced.
  • the downlink overhead improves the flexibility of system information configuration and optimizes the performance of the entire network.
  • An embodiment of the present invention provides a system information transmission method, as shown in FIG. 2, including:
  • the base station may broadcast the global system information by using all the transmission points in the base station, so that all the UEs in the cell can receive the global system information, and can be configured according to the regional system information in the global system information.
  • the information receives the regional system information.
  • the area system information may include: at least one of SIB2 to SIB 13 in the SIB, where the pre-configured area coverage information may include: The result of the division, the regional system information corresponding to each region after dividing the region, the transmission points distributed in each region, and the like.
  • the system information transmission method provided by the embodiment of the present invention broadcasts global system information in a cell, where the global system information includes configuration information of the area system information in the cell, and then according to the pre-configured area coverage information, in the area.
  • the corresponding area system information is broadcasted such that the user equipment UE receives the area system information according to the configuration information.
  • only the most basic configuration information is broadcasted, and other information is separately configured for each user by means of signaling.
  • the corresponding regional system information can be broadcasted for different areas, which reduces downlink overhead and improves.
  • the flexibility of system information configuration has optimized the performance of the entire network.
  • the embodiment of the present invention provides a system information transmission method. As shown in FIG. 3, the method includes: 301: A base station broadcasts global system information in a cell, where the global system information includes configuration information of area system information in the cell.
  • the global system information may include an MIB and an SIB 1 , where the MIB mainly includes: a downlink system bandwidth, a physical Hybrid-ARQ Indicator Channel (PHICH) configuration, and a system frame number information.
  • the H-ARQ is a Hybrid-Automatic Repeat-Quest (H-ARQ). Furthermore, it is carried in a Physical Broadcast Channel (PBCH) and broadcasts to the cell in a transmission period of 40 ms.
  • PBCH Physical Broadcast Channel
  • the SIB 1 is carried in a Physical Downlink Shared Channel (PD SCH ) and broadcasts to the cell in a transmission period of 80 ms.
  • the area system information includes at least one of SIB2 - SIB 13 in the SIB, and the bearer is broadcasted in the PDSCH to the intra-cell, and the transmission period is configurable.
  • the UE receives global system information that is broadcast by the base station in the cell.
  • the configuration information loading manner of the area system information included in the global system information may include: a dedicated data domain carried in the existing global system information; or / and, carried in the dedicated global system information.
  • the private data domain that is configured to be carried in the existing global system information may be: adding a new data domain to the existing global system information, specifically for carrying the configuration information, for example, in the A new data field R-SIB-Config is added to the MIB or the SIB 1 for carrying the configuration information.
  • the configuration information is carried in the dedicated global system information, and may be: redefining a new system information in the global system information, where the system information does not include the MIB or the SIB 1 , and is specifically used to carry the configuration.
  • the information for example, redefines a new system information R-SIB in the global system information for carrying the configuration information.
  • the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and an area system information identifier corresponding to each area system information.
  • the configuration information may include: three pieces of regional system information, which are assumed to be regional system information A, regional system information B, and regional system information C; regional system information A may be composed of SIB2 and SIB3, and regional system information B may be composed of SIB2, SIB4 and SIB 1 1 are composed, and the regional system information C can be composed of SIB5 and SIB8; the regional system information identifier A corresponding to the regional system information A, the regional system information identifier B corresponding to the regional system information B, and the regional system information C corresponding to The area system information identifies C.
  • the base station broadcasts corresponding area system information in each area of the cell according to the pre-configured area coverage information.
  • a cell may be divided into multiple areas according to different geographical locations, different environments, and different users, and then corresponding area system information is pre-configured for each area according to the division principle, so as to be in the area. Broadcast corresponding regional system information.
  • a cell is divided into a number of small regions, region 1 can correspond to the transmission environment of the bustling area of the block, and region 2 can correspond to the transmission of the residential area. surroundings.
  • the regional system information is configured for the transmission environment of the bustling section corresponding to the region l, the mobility of the user is large, and a conservative configuration may be adopted to ensure reliability; and the transmission environment of the residential area corresponding to the region 2 may be adopted.
  • a more aggressive configuration can be used to achieve higher throughput.
  • the specific manner of broadcasting the corresponding area system information in the area may be: broadcasting the area system information corresponding to the area through the transmission point distributed in the area according to the area division result in the pre-configured area coverage information.
  • a cell can be divided into two regions. According to the user characteristics of region 1 and region 2, regional system information a needs to be broadcast in region l and regional system information b is broadcast in region 2.
  • the region l contains three transmission points: transmission point A, transmission point B, and transmission point C.
  • Region2 contains two transmission points: transmission point D and transmission point E.
  • the specific manner of broadcasting the area system information in the cell may be: broadcasting the area system information a through the transmission point A, the transmission point B, and the transmission point C, so that the UE in the region l can preferentially receive the area system information a, by transmitting The point D and the transmission point E broadcast the area system information b such that the UE in the region 2 can preferentially receive the area system information b.
  • the area division is performed by using only the characteristics of the foregoing enumerated areas.
  • the area division method includes but is not limited to the foregoing method, and may also be classified according to the geographical location of the UE detected by the GP S. Area and more. Other methods of area division are not described in detail in the embodiments of the present invention, but other methods of area division can also be applied to the embodiments of the present invention.
  • the specific implementation method for the UE to receive the area system information broadcasted in the area according to the global system information may include the following steps 304, 305, and 306:
  • the UE uses the area system information identifier to detect a Physical Downlink Control Channel (PDCCH) or an Enhanced Physical Downlink Control Channel (E-PDCCH).
  • the area system information identifier includes: a predefined Regional Information Radio-Network Temporary Identity (RI-RNTI).
  • the pre-defined RI-RNTI may be a plurality of RI-RNTIs defined in an existing Radio-Network Temporary Identity (RNTI), which are respectively used as area system information identifiers corresponding to each area system information. .
  • the UE may detect the PDCCH or the E-PDCCH by using the RI-RNTI that has been acquired from the base station side, that is, perform descrambling verification on the CRC check bit, so as to perform the slave step described in step 305.
  • the UE attempts to use the PDCCH-checked bits in the PDCCH or the E-PDCCH by using all the RI-RNTIs included in the received global system information. De-scrambling check.
  • the cell base station performs scrambling on the CRC check bits by using different RI-RNTIs, so the UE performs descrambling check on the CRC check bits by using the corresponding RI-RNTI, so as to descramble the school.
  • the test succeeded in getting the correct data.
  • the UE performs an attempted descrambling check on the PDCCH or the scrambled CRC check bit in the E-PDCCH correspondingly by using all the RI-RNTIs, and theoretically, the multi-group of the CRC can be successfully descrambled and verified.
  • Check Digit The UE may perform obtaining the corresponding DCI and subsequent acquisition area system information from the PDCCH or the E-PDCCH by using the CRC check bit that is successfully verified first.
  • an area system information identifier may also be selected according to the location information of the UE and the coverage area information.
  • the configuration information may also be To include: Coverage area information for each regional system information.
  • the coverage area information of each area system information may be a geographical area range that each area system information can cover.
  • the specific implementation manner of selecting a regional system information identifier according to the location information and the coverage area information of the UE may be: acquiring a location information by using a global positioning system (GPS) positioning; comparing the obtained location The information and the coverage area information of each area system information determine whether the location of the UE is included in the geographic area covered by the system information of the area or determine which geographic area of the area covered by the system information is closest to the area; The regional system information identifier corresponding to the determined regional system information is selected.
  • GPS global positioning system
  • step 304 may be replaced by detecting the PDCCH or the E-PDCCH by using the selected regional system information identifier.
  • the UE since the UE performs descrambling verification on the CRC check bit by using a selected area system information identifier, only a set of CRC check bits can be successfully descrambled, and the school horse is successfully used.
  • the CRC calibrating all-bit execution acquires the corresponding DCI and subsequent acquisition area system information from the PDCCH or the E-PDCCH.
  • the UE acquires corresponding downlink control information DCI from the PDCCH or the E-PDCCH.
  • Step 304 Detecting the PDCCH or the E-PDCCH, performing descrambling verification on the PDCCH or the scrambled CRC check bit in the E-PDCCH, and if the descrambling verification is successful, the method may obtain The content of the channel data corresponding to the CRC in which the descrambling check succeeds, that is, the UE acquires the corresponding DCI from the PDCCH or the E-PDCCH.
  • the DCI includes resource allocation and other control information of one or more UEs, and the UE may obtain corresponding area system information from the PDSCH according to the DCI.
  • the UE demodulates the area system information from the PDSCH according to the DCI.
  • the UE allocates resource allocation and other control information on one or more UEs included in the DCI, indicating a required regional system of the UE in the PDSCH. Resource location and demodulation method of information. For example, a demodulation reference signal can be applied
  • DM-RS Demodulation Reference Signal
  • the base station side may not send the area system information identifier, and the UE may calculate the area system information identifier corresponding to each area system information according to the pre-configured identifier calculation rule.
  • the method in this embodiment may further include the following step 307:
  • the UE calculates the area system information identifier according to the pre-configured identifier calculation rule.
  • the configuration information includes: a number of items of regional system information in the cell and a composition of each area system information.
  • the area system information identifier is not included in the configuration information. Therefore, the UE needs to calculate the area system information identifier according to the pre-configured identifier calculation rule.
  • the specific method for calculating the identifier of the area system information may be: the UE calculates the area system information corresponding to the system information of each area according to the pre-configured identifier calculation rule, using the ID of the cell where the UE is located and the composition of each area system information. logo.
  • the ID of the cell may be demodulated by the UE from a synchronization channel periodically broadcast by the base station. Since the UE in the cell may change, for example, a new UE may enter the cell, and the base station does not determine the time when the UE joins the cell, so the synchronization channel is periodically broadcasted in the cell, so that the UE The synchronization channel can be received and the ID of the cell where the UE is located can be demodulated from the synchronization channel, where the UE can demodulate the ID of the cell where the UE is located after receiving the synchronization channel. And store the ID information for backup.
  • a system information transmission method provided by an embodiment of the present invention broadcasts in a cell
  • the system information where the global system information includes the configuration information of the area system information in the cell, and then broadcasts the corresponding area system information in the area according to the pre-configured area coverage information, so that the user equipment UE is according to the global system.
  • the information receives the regional system information.
  • only the most basic configuration information is broadcasted, and other information is separately configured for each user by means of signaling.
  • the corresponding regional system information can be broadcasted for different areas, which reduces downlink overhead and improves.
  • the flexibility of system information configuration has optimized the performance of the entire network.
  • the embodiment of the present invention provides a user equipment UE, as shown in FIG. 5, including: a receiving unit 4 1 and an obtaining unit 42.
  • the receiving unit 4 1 is configured to receive global system information that is broadcast by the base station in the cell, where the global system information includes configuration information of area system information of each area in the cell.
  • the obtaining unit 42 is configured to acquire, according to configuration information of the area system information received by the receiving unit 41, area system information broadcast by the base station in the area.
  • the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and an area system information identifier corresponding to each area system information.
  • the acquiring unit may include: a first detecting module 42 1 , a first acquiring module 422, and a first demodulating module. 423.
  • the first detecting module 42 1 is configured to detect the physical downlink control channel PDCCH or the enhanced physical downlink control channel E-PDCCH by using the area system information identifier.
  • the first obtaining module 422 is configured to obtain corresponding downlink control information DCI from the PDCCH or the E-PDCCH after the first detecting module 42 1 detects the success.
  • the first demodulation module 423 is configured to demodulate the area system information from the PD SCH according to the DCI acquired by the first acquiring module. Further, as shown in FIG. 6 (b), in another application scenario of the embodiment, the configuration information further includes: coverage area information of each area system information.
  • the obtaining unit 42 may include: a selecting module 424, a second detecting module 425, a second obtaining module 426, and a second demodulating module 427.
  • the selecting module 424 is configured to select an area system information identifier according to the location information of the UE and the coverage area information.
  • the second detecting module 425 is configured to detect the PDCCH or the E-PDCCH by using the selected area system information identifier of the selecting module 424.
  • the second obtaining module 426 is configured to obtain a corresponding DCI from the PDCCH or the E-PDCCH after the second detecting module 425 detects the success.
  • the second demodulation module 427 is configured to demodulate the area system information from the PDSCH according to the DCI acquired by the second obtaining module 426.
  • the configuration information includes: a number of items of regional system information in the cell and a composition of system information of each area.
  • the UE may further include: a calculating unit 43.
  • the calculating unit 43 is configured to calculate the area system information identifier according to the pre-configured identifier calculation rule before the acquiring unit 42 acquires the area system information broadcasted by the base station in the area according to the configuration information of the area system information.
  • the acquiring unit 42 is further configured to detect a PDCCH or an E-PDCCH according to the area system information identifier calculated by the calculating unit 43; after the detection succeeds, acquire a corresponding DCI from the PDCCH or the E-PDCCH; The area system information is demodulated from the PDSCH according to the DCI.
  • the UE provided by the embodiment of the present invention receives the global system information broadcasted by the base station in the cell, and then receives the regional system information broadcasted in the area according to the configuration information of the area system information in the cell included in the global system information.
  • the UEs in different areas can receive the regional system information broadcast by the base station for the area, which is reduced.
  • the downlink overhead improves the flexibility of system information configuration and optimizes the performance of the entire network.
  • the embodiment of the present invention provides a base station, as shown in FIG. 7, including: a broadcasting unit 5 1 and a storage unit 52.
  • the storage unit 52 is configured to store global system information and regional system information.
  • the broadcast unit 5 1 is configured to broadcast the global system information stored in the storage unit 52 in the cell, where the global system information includes configuration information of the area system information in the cell.
  • the broadcast unit 5 1 is further configured to broadcast the area system information corresponding to the area stored in the storage unit 52 in each area of the cell according to the pre-configured area coverage information, so that the user equipment UE
  • the global system information receives the regional system information.
  • the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and an area system information identifier corresponding to each area system information.
  • the configuration information further includes: coverage area information of each area system information.
  • the configuration information may include: a number of items of regional system information in the cell and a composition of each area system information.
  • a base station broadcasts global system information in a cell, where global system information includes configuration information of area system information in a cell, and then broadcasts corresponding information in the area according to pre-configured area coverage information.
  • the area system information is such that the user equipment UE receives the area system information according to the global system information.
  • the embodiment of the present invention provides a UE, as shown in FIG. 8, including: a receiver 61 and a processor 62.
  • the receiver 61 is configured to receive global system information that is broadcast by the base station in the cell, where the global system information includes configuration information of area system information of each area in the cell.
  • the processor 62 is configured to acquire, according to configuration information of the area system information received by the receiver 61, area system information broadcast by the base station in the area.
  • the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and an area system information identifier corresponding to each area system information.
  • the processor 62 is further configured to detect, by using the area system information identifier, a physical downlink control channel PDCCH or an enhanced physical downlink control channel E-PDCCH; Obtaining corresponding downlink control information DCI in the PDCCH or the E-PDCCH; demodulating the area system information from the PDSCH according to the acquired DCI.
  • the configuration information is The information also includes: coverage area information of each regional system information.
  • the processor 62 is further configured to: select an area system information identifier according to the location information of the UE and the coverage area information; detect a PDCCH or an E-PDCCH by using the selected area system information identifier; from the PDCCH or Obtaining a corresponding DCI in the E-PDCCH; and demodulating the area system information from the PDSCH according to the obtained DCI.
  • the configuration information may include: a number of items of regional system information in the cell and a composition of each area system information.
  • the processor 62 is further configured to: before the receiver 61 acquires the area system information broadcast by the base station in the area according to the configuration information of the area system information, according to the pre-configured identifier. Calculate the rules and calculate the regional system information identifier.
  • a UE receives global system information broadcasted by a base station in a cell, and then receives area system information broadcasted in the area according to configuration information of area system information in the cell included in the global system information.
  • the UEs in different areas can receive the regional system information broadcast by the base station for the area, which is reduced.
  • the downlink overhead improves the flexibility of system information configuration and optimizes the performance of the entire network.
  • the embodiment of the present invention provides a base station, as shown in FIG. 9, including: a transmitter 71 and a memory 72.
  • the memory 72 is configured to store global system information and regional system information.
  • a transmitter 71 configured to broadcast global system information stored in the memory 72 in a cell, where the global system information includes configuration information of area system information in the cell; according to pre-configured area coverage information, in the area
  • the area system information corresponding to the area stored in the memory 72 is broadcasted such that the user equipment UE receives the area system information according to the global system information.
  • the configuration information includes: a number of items of regional system information in the cell, a composition of system information of each area, and an area system information identifier corresponding to each area system information.
  • the configuration information may further include: coverage area information of each area system information.
  • the configuration information may include: a number of items of regional system information in the cell and a composition of each area system information.
  • a base station broadcasts global system information in a cell, where global system information includes configuration information of area system information in a cell, and then broadcasts corresponding information in the area according to pre-configured area coverage information.
  • the area system information is such that the user equipment UE receives the area system information according to the configuration information.
  • the corresponding regional system information can be broadcasted for different areas, which reduces downlink overhead and improves.
  • the flexibility of system information configuration has optimized the performance of the entire network.
  • An embodiment of the present invention provides a system information transmission system, as shown in FIG. 10, including: a user equipment UE81 and a base station 82.
  • the UE 81 is configured to receive global system information that is broadcast by the base station 82 in the cell, where the global system information includes configuration information of the area system information in the cell, and the regional system broadcasted in the area according to the global system information. information.
  • the base station 82 is configured to broadcast global system information in a cell, where the global system information includes configuration information of area system information in the cell, and broadcasts a corresponding area system in the area according to pre-configured area coverage information. Information, such that the UE 81 receives the second system according to the global system information
  • the foregoing UE 81 and the base station 82 can perform system information transmission according to the methods described in all the foregoing embodiments, and details are not described herein again.
  • a system information transmission system broadcasts global system information in a cell, where global system information includes configuration information of area system information in a cell, and then according to pre-configured area coverage information, in the area
  • the corresponding area system information is broadcasted such that the user equipment UE receives the area system information according to the configuration information.
  • the corresponding regional system information can be broadcasted for different areas, which reduces downlink overhead and improves.
  • the flexibility of system information configuration has optimized the performance of the entire network.
  • the present invention can be implemented by means of software plus necessary general hardware, and of course, by hardware, but in many cases, the former is a better implementation. .
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a readable storage medium, such as a floppy disk of a computer.
  • a hard disk or optical disk or the like includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

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

Abstract

La présente invention se rapporte à un procédé, à une station de base et à un système permettant de transmettre des informations système, qui se rapportent au domaine des communications sans fil, et peuvent réduire le surdébit sur la liaison descendante de sorte à optimiser la performance de tout le réseau. Le procédé de la présente invention consiste à : recevoir des informations système globales diffusées par une station de base dans une cellule, les informations système globales comportant des informations de configuration concernant des informations système régionales qui se rapportent à chaque région dans la cellule; et selon les informations de configuration concernant les informations système régionales, acquérir les informations système régionales diffusées par la station de base dans la région. Les modes de réalisation de la présente invention sont principalement utilisés dans le procédé de transmission d'informations système.
PCT/CN2013/073385 2012-10-09 2013-03-28 Procédé, station de base et système permettant de transmettre des informations système WO2014056307A1 (fr)

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