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WO2018117677A1 - Procédé de fonctionnement pour un nœud de communication transmettant des informations système dans un réseau de communication - Google Patents

Procédé de fonctionnement pour un nœud de communication transmettant des informations système dans un réseau de communication Download PDF

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Publication number
WO2018117677A1
WO2018117677A1 PCT/KR2017/015214 KR2017015214W WO2018117677A1 WO 2018117677 A1 WO2018117677 A1 WO 2018117677A1 KR 2017015214 W KR2017015214 W KR 2017015214W WO 2018117677 A1 WO2018117677 A1 WO 2018117677A1
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WO
WIPO (PCT)
Prior art keywords
system information
terminal
base station
time
information
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/KR2017/015214
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English (en)
Korean (ko)
Inventor
이정훈
김민현
김지형
김철순
문성현
박주호
이준환
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electronics and Telecommunications Research Institute ETRI
Original Assignee
Electronics and Telecommunications Research Institute ETRI
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020170173909A external-priority patent/KR102531880B1/ko
Application filed by Electronics and Telecommunications Research Institute ETRI filed Critical Electronics and Telecommunications Research Institute ETRI
Priority to EP17883119.4A priority Critical patent/EP3562079B1/fr
Priority to CN201780052884.7A priority patent/CN109644112B/zh
Priority to US16/318,393 priority patent/US11044758B2/en
Priority to JP2019510855A priority patent/JP6924819B2/ja
Publication of WO2018117677A1 publication Critical patent/WO2018117677A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J11/00—Orthogonal multiplex systems, e.g. using WALSH codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • 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

Definitions

  • the present invention relates to a method of operating a communication node for transmitting system information in a communication network, and more particularly, to a method of operating a communication node for transmitting system information in response to a request of system information in a communication network. .
  • a user equipment may generally transmit and receive data through a base station. For example, if there is data to be transmitted to the second terminal, the first terminal may generate a message including the data to be transmitted to the second terminal, and transmit the generated message to the first base station to which it belongs. have.
  • the first base station may receive a message from the first terminal, and may confirm that the destination of the received message is the second terminal.
  • the first base station may transmit a message to the second base station to which the second terminal which is the confirmed destination belongs.
  • the second base station may receive a message from the first base station, and may confirm that the destination of the received message is the second terminal.
  • the second base station may transmit a message to the second terminal which is the confirmed destination.
  • the second terminal may receive a message from the second base station, and may obtain data included in the received message.
  • a terminal may transmit downlink-related information (eg, frequency, time synchronization, and cell ID) based on a synchronization signal periodically transmitted from a base station. Etc.) can be obtained. Thereafter, the terminal may form a radio link to the base station, and may obtain system information transmitted from the base station through the formed radio link. Thereafter, the terminal may access the base station by performing an access procedure for the base station based on the system information.
  • downlink-related information eg, frequency, time synchronization, and cell ID
  • system information transmitted from the base station may be periodically transmitted regardless of the request of the terminal. That is, in a communication network, a base station periodically transmits system information even without a request for system information. Accordingly, the base station can unnecessarily transmit system information in the communication network, and thus there is a problem in that the radio resource cannot be efficiently used.
  • An object of the present invention for solving the above problems is to provide a method for operating a communication node for transmitting system information in response to a request of system information in a communication network.
  • a method of operating a base station for transmitting system information in a communication network for achieving the above object, the request time and the system information of the system information in the communication network Setting information on a transmission time of the mobile terminal; transmitting a message including the set request time and information on the transmission time based on a broadcast method; at least one terminal included in the communication network Receiving a message for requesting the system information from the request time from the request and transmitting the message including the system information to the at least one terminal based on the transmission time.
  • the information on the request time may include information on the time at which the request for the system information is possible.
  • the time point at which the request for the system information is possible may be one of a first time point preset for the request of the system information in the at least one terminal and a second time point that allows uplink transmission in the at least one terminal. Can be.
  • the message for requesting the system information may be received from the at least one terminal when the request for the system information is possible.
  • the information on the transmission time may include one of information on the time point at which the system information is transmitted from the base station and information on at least one time interval in which the system information is transmitted.
  • the time point at which the system information is transmitted is one of a first time point that is after a preset time from a time point at which the message for requesting the system information is received and a second time point preset for periodically transmitting the system information by the base station. Can be.
  • the message including the system information when transmitted in the at least one time interval, the message may be transmitted based on a plurality of redundant versions within the at least one time interval.
  • a method of operating a communication node for transmitting system information in a communication network the method for operating a base station for transmitting system information in a communication network.
  • Receiving a message requesting the system information from a plurality of groups including at least one terminal in the communication network setting a plurality of parameters for transmission of system information for each of the plurality of groups And transmitting a message including system information about the plurality of groups based on the set plurality of parameters.
  • the message for requesting the system information may be transmitted based on the RACH preamble which is a resource preset by the base station for the request of the system information.
  • the plurality of parameters may include a transmission time at which the system information is transmitted and an identifier used to transmit the system information.
  • the setting of the plurality of parameters may include transmitting first system information for a first group included in the plurality of groups and second system information for a second group included in the plurality of groups.
  • the time and the identifier may be set to distinguish the first system information and the second system information.
  • the identifiers of the first system information and the second system information may be set differently. Can be.
  • the identifiers of the first system information and the second system information are the same. Can be set.
  • An operation method of a communication node for transmitting system information in a communication network is an operation method of a terminal for receiving system information in a communication network, the communication network Receiving a message including information on a request time of the system information and a transmission time of the system information transmitted from a base station of the base station, and transmitting a message requesting the system information based on the request time. And receiving a message including the system information from the base station based on the transmission time.
  • the information on the request time may include information on the time at which the request for the system information is possible.
  • the time point at which the request for the system information is possible may be one of a first time point preset for the request for the system information at the terminal and a second time point at which uplink transmission is possible at the terminal.
  • the information on the transmission time may include one of information on the time point at which the system information is transmitted from the base station and information on at least one time interval in which the system information is transmitted.
  • the time point at which the system information is transmitted is a first time point that is after a preset time from the time point at which the message for requesting the system information is received by the base station, and the second time point that is preset for periodically transmitting the system information at the base station It may be one of the viewpoints.
  • the message including the system information may be received based on one of the time point at which the system information included in the information on the transmission time is transmitted and the at least one time interval.
  • the message including the system information when the message including the system information is received in the at least one time interval, the message may be received based on a plurality of redundant versions within the at least one time interval.
  • a communication node serving as a base station in a communication network can effectively use radio resources by transmitting system information only when system information is required.
  • FIG. 1 is a conceptual diagram illustrating a first embodiment of a communication network.
  • FIG. 2 is a block diagram illustrating an embodiment of a communication node constituting a communication network.
  • FIG. 3 is a conceptual diagram illustrating an embodiment of a type 1 frame.
  • FIG. 4 is a conceptual diagram illustrating an embodiment of a type 2 frame.
  • FIG. 5 is a flowchart illustrating a method of operating a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • FIG. 6 is a conceptual diagram illustrating a first embodiment of a method of operating a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • FIG. 7 is a conceptual diagram illustrating a second embodiment of a method of operating a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • FIG. 8 is a conceptual diagram illustrating a third embodiment of an operation method of a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • FIG. 9 is a conceptual diagram illustrating a fourth embodiment of a method of operating a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • FIG. 10 is a conceptual diagram illustrating a fifth embodiment of a method of operating a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • FIG. 11 is a conceptual diagram illustrating a sixth embodiment of a method of operating a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • FIG. 12 is a flowchart illustrating a method of operating a communication node for transmitting system information in a communication network according to another embodiment of the present invention.
  • FIG. 13 is a conceptual diagram illustrating a method of operating a communication node for transmitting system information in a communication network according to another embodiment of the present invention.
  • first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.
  • the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component.
  • FIG. 1 is a conceptual diagram illustrating an embodiment of a communication network.
  • the communication network 100 includes a plurality of communication nodes 110-1, 110-2, 110-3, 120-1, 120-2, 130-1, 130-2, 130-3, 130-4, 130-5, 130-6).
  • the communication network 100 may be referred to as a "communication system".
  • Each of the plurality of communication nodes may support at least one communication protocol.
  • each of the plurality of communication nodes may include a code division multiple access (CDMA) based communication protocol, a wideband CDMA (WCDMA) based communication protocol, a time division multiple access (TDMA) based communication protocol, and a frequency division multiple (FDMA) based communication protocol.
  • CDMA code division multiple access
  • WCDMA wideband CDMA
  • TDMA time division multiple access
  • FDMA frequency division multiple
  • Each of the plurality of communication nodes may have a structure as follows.
  • FIG. 2 is a block diagram illustrating an embodiment of a communication node constituting a communication network.
  • the communication node 200 may include at least one processor 210, a memory 220, and a transceiver 230 that communicates with a network.
  • the communication node 200 may further include an input interface device 240, an output interface device 250, a storage device 260, and the like.
  • Each component included in the communication node 200 may be connected by a bus 270 to communicate with each other.
  • the processor 210 may execute a program command stored in at least one of the memory 220 and the storage device 260.
  • the processor 210 may refer to a central processing unit (CPU), a graphics processing unit (GPU), or a dedicated processor on which methods according to embodiments of the present invention are performed.
  • Each of the memory 220 and the storage device 260 may be configured as at least one of a volatile storage medium and a nonvolatile storage medium.
  • the memory 220 may be configured as at least one of a read only memory (ROM) and a random access memory (RAM).
  • the communication network 100 includes a plurality of base stations 110-1, 110-2, 110-3, 120-1, and 120-2, and a plurality of user equipments. ) 130-1, 130-2, 130-3, 130-4, 130-5, and 130-6.
  • Each of the first base station 110-1, the second base station 110-2, and the third base station 110-3 may form a macro cell.
  • Each of the fourth base station 120-1 and the fifth base station 120-2 may form a small cell.
  • the fourth base station 120-1, the third terminal 130-3, and the fourth terminal 130-4 may belong to the coverage of the first base station 110-1.
  • the second terminal 130-2, the fourth terminal 130-4, and the fifth terminal 130-5 may belong to the coverage of the second base station 110-2.
  • the fifth base station 120-2, the fourth terminal 130-4, the fifth terminal 130-5, and the sixth terminal 130-6 may belong to the coverage of the third base station 110-3.
  • the first terminal 130-1 may belong to the coverage of the fourth base station 120-1.
  • the sixth terminal 130-6 may belong to the coverage of the fifth base station 120-2.
  • each of the base stations 110-1, 110-2, 110-3, 120-1, and 120-2 is a NodeB, an evolved NodeB, a base transceiver station (BTS), Radio base station, radio transceiver, access point, access node, road side unit (RSU), radio remote head (RRH), transmission point (TP) It may be referred to as a transmission and reception point (TRP), a relay node, and the like.
  • Each of the plurality of terminals 130-1, 130-2, 130-3, 130-4, 130-5, and 130-6 is a terminal, an access terminal, a mobile terminal, It may be referred to as a station, a subscriber station, a mobile station, a portable subscriber station, a node, a device, or the like.
  • a plurality of communication nodes 110-1, 110-2, 110-3, 120-1, 120-2, 130-1, 130-2, 130-3, 130-4, 130-5, 130-6 Each may support cellular communication (eg, long term evolution (LTE), LTE-A (advanced, etc.) as defined in the 3rd generation partnership project (3GPP) standard).
  • LTE long term evolution
  • LTE-A advanced, etc.
  • 3GPP 3rd generation partnership project
  • Each of the plurality of base stations 110-1, 110-2, 110-3, 120-1, and 120-2 may operate in different frequency bands, or may operate in the same frequency band.
  • Each of the plurality of base stations 110-1, 110-2, 110-3, 120-1, and 120-2 may be connected to each other through an ideal backhaul or a non-ideal backhaul, and an ideal backhaul.
  • Each of the base stations 110-1, 110-2, 110-3, 120-1, and 120-2 may be connected to a core network (not shown) through an ideal backhaul or a non-idal backhaul.
  • Each of the plurality of base stations 110-1, 110-2, 110-3, 120-1, and 120-2 receives a signal received from the core network, corresponding terminal 130-1, 130-2, 130-3, 130. -4, 130-5, 130-6, and the signal received from the corresponding terminal (130-1, 130-2, 130-3, 130-4, 130-5, 130-6) core network Can be sent to.
  • Each of the plurality of base stations 110-1, 110-2, 110-3, 120-1, and 120-2 may support downlink transmission based on OFDMA and uplink based on SC-FDMA. Can support transport.
  • each of the plurality of base stations 110-1, 110-2, 110-3, 120-1, and 120-2 may transmit multiple input multiple output (MIMO) (eg, single user (SU) -MIMO, Multi-user (MU) -MIMO, massive MIMO), CoMP (coordinated multipoint) transmission, carrier aggregation transmission, transmission in unlicensed band, device to device, D2D ) Communication (or ProSeimity services).
  • MIMO multiple input multiple output
  • SU single user
  • MU Multi-user
  • massive MIMO massive MIMO
  • CoMP Coordinated multipoint
  • each of the plurality of terminals 130-1, 130-2, 130-3, 130-4, 130-5, and 130-6 is a base station 110-1, 110-2, 110-3, 120-1 , 120-2), and operations supported by the base stations 110-1, 110-2, 110-3, 120-1, and 120-2.
  • the second base station 110-2 may transmit a signal to the fourth terminal 130-4 based on the SU-MIMO scheme, and the fourth terminal 130-4 may transmit the signal based on the SU-MIMO scheme.
  • the signal may be received from the second base station 110-2.
  • the second base station 110-2 may transmit a signal to the fourth terminal 130-4 and the fifth terminal 130-5 based on the MU-MIMO scheme, and the fourth terminal 130-4 may be used.
  • each of the fifth terminals 130-5 may receive a signal from the second base station 110-2 by the MU-MIMO scheme.
  • Each of the first base station 110-1, the second base station 110-2, and the third base station 110-3 may transmit a signal to the fourth terminal 130-4 based on a CoMP scheme, and a fourth The terminal 130-4 may receive a signal from the first base station 110-1, the second base station 110-2, and the third base station 110-3 by the CoMP scheme.
  • Each of the plurality of base stations 110-1, 110-2, 110-3, 120-1, and 120-2 includes terminals 130-1, 130-2, 130-3, 130-4, which belong to its own coverage. 130-5 and 130-6) and a signal may be transmitted and received based on a carrier aggregation scheme.
  • Each of the first base station 110-1, the second base station 110-2, and the third base station 110-3 coordinates D2D communication between the fourth terminal 130-4 and the fifth terminal 130-5.
  • the fourth terminal 130-4 and the fifth terminal 130-5 may each perform D2D communication by coordination of each of the second base station 110-2 and the third base station 110-3. Can be performed.
  • the communication network may support a frequency division duplex (FDD) scheme, a time division duplex (TDD) scheme, and the like.
  • FDD frequency division duplex
  • TDD time division duplex
  • a frame based on the FDD scheme may be defined as a “type 1 frame”
  • a frame based on the TDD scheme may be defined as a “type 2 frame”.
  • FIG. 3 is a conceptual diagram illustrating an embodiment of a type 1 frame.
  • the radio frame 300 may include ten subframes, and the subframe may include two slots.
  • the radio frame 600 may include 20 slots (eg, slot # 0, slot # 1, slot # 2, slot # 3, ..., slot # 18, slot # 19).
  • the length Tf of the radio frame 300 may be 10 ms.
  • the subframe length may be 1 ms.
  • the slot length Tslot may be 0.5 ms.
  • Ts may be 1 / 30,720,000 s.
  • the slot may consist of a plurality of OFDM symbols in the time domain and may consist of a plurality of resource blocks (RBs) in the frequency domain.
  • the resource block may be composed of a plurality of subcarriers in the frequency domain.
  • the number of OFDM symbols constituting the slot may vary depending on the configuration of a cyclic prefix (CP).
  • CP may be classified into a normal CP and an extended CP. If a regular CP is used, the slot may consist of seven OFDM symbols, in which case the subframe may consist of fourteen OFDM symbols. If the extended CP is used, the slot may consist of six OFDM symbols, in which case the subframe may consist of twelve OFDM symbols.
  • FIG. 4 is a conceptual diagram illustrating an embodiment of a type 2 frame.
  • the radio frame 400 may include two half frames, and the half frame may include five subframes.
  • the radio frame 400 may include ten subframes.
  • the radio frame 400 length Tf may be 10 ms.
  • the length of the half frame may be 5ms.
  • the subframe length may be 1 ms.
  • Ts may be 1 / 30,720,000 s.
  • the radio frame 400 may include a downlink subframe, an uplink subframe, and a special subframe.
  • Each of the downlink subframe and the uplink subframe may include two slots.
  • the slot length Tslot may be 0.5 ms.
  • each of subframe # 1 and subframe # 6 may be a special subframe.
  • the special subframe may include a downlink pilot time slot (DwPTS), a guard period (GP), and an uplink pilot time slot (UpPTS).
  • DwPTS downlink pilot time slot
  • GP guard period
  • UpPTS uplink pilot time slot
  • the downlink pilot time slot may be considered as a downlink period and may be used for cell search, time and frequency synchronization acquisition, etc. of the UE.
  • the guard period may be used for solving the interference problem of uplink data transmission caused by the downlink data reception delay.
  • the guard period may include a time required for switching from the downlink data reception operation to the uplink data transmission operation.
  • the uplink pilot time slot may be used for uplink channel estimation, time and frequency synchronization acquisition, and the like.
  • the length of each of the downlink pilot time slot, the guard period, and the uplink pilot time slot included in the special subframe may be variably adjusted as necessary.
  • the number and position of each of the downlink subframe, the uplink subframe, and the special subframe included in the radio frame 400 may be changed as necessary.
  • FIG. 5 is a flowchart illustrating a method of operating a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • a communication network may mean a new radio (NR) communication system.
  • the NR communication system may be a communication system supporting communication at frequencies below 6 GHz, as well as frequencies above 6 GHz.
  • an operation method of a communication node for transmitting system information in a communication network according to an embodiment of the present invention may be performed at a base station. That is, a communication node transmitting system information in a communication network according to an embodiment of the present invention may mean a base station.
  • the base station may set the information about the request time of the system information and the transmission time of the system information in the communication network (S100).
  • the information on the request time of the system information may include information on the time at which the request for the system information is possible in at least one terminal included in the communication network.
  • the time point at which the request for system information is possible may be one of a first time point preset in the base station for requesting the system information in at least one terminal and a second time point in which uplink transmission is possible in at least one terminal. Can be.
  • the transmission time of the system information is information on the transmission time when the system information is transmitted from the base station is at least one time interval (in the present invention information about the time when the system information is transmitted from the base station and the system information is transmitted) Information about a time window).
  • the point in time at which the system information is transmitted may be one of a first point in time after a preset time from a point in time at which a message for requesting system information is received and a second point in time for periodically transmitting system information from the base station.
  • the at least one time interval in which the system information is transmitted may be one time interval or a plurality of time intervals. In this case, when the time interval for transmitting system information is set to a plurality of time intervals, the plurality of time intervals may be set periodically or aperiodically.
  • the base station may transmit a message including information on the set request time and transmission time based on the broadcast method (S200).
  • the base station may generate a message including information on a request time for requesting system information from at least one terminal included in a communication network and information on a transmission time for transmitting system information from the base station.
  • the base station may transmit a message including information on the request time and information on the transmission time based on the broadcast method.
  • the message including the information on the request time of the system information and the transmission time of the system information is the minimum system information (minimum-) which means the system information that is always needed at least one terminal included in the communication network. It may mean a message including SI). That is, the information about the request time of the system information and the information about the transmission time of the system information may be periodically included in the minimum system information transmitted from the base station. In addition, the information on the request time of the system information and the information on the transmission time of the system information may be included in the configuration information of the RRC parameter for at least one terminal and transmitted.
  • At least one terminal included in the communication network may receive a message including information on the request time and information on the transmission time transmitted from the base station based on the broadcast scheme. Thereafter, at least one terminal included in the communication network may transmit a message requesting system information to the base station based on the request time. In detail, the at least one terminal may check the time at which the system information can be requested from the information on the request time at which the system information can be requested. Thereafter, the at least one terminal may transmit a message requesting system information to the base station based on the identified time point.
  • the at least one terminal transmits a message requesting the system information to the first time point. Can be.
  • at least one terminal may transmit a message for requesting the system information to the second time point when the time indicated by the request time of the system information is a second time point (at least one time point when uplink transmission is possible from one terminal).
  • the message for requesting the system information transmitted from at least one terminal included in the communication network may be in the form of a scheduling request (SR) message and a RACH preamble (RACH preamble) transmitted from the at least one terminal.
  • the message requesting system information transmitted from at least one terminal may be a separate message generated to request system information.
  • the RACH preamble may be a contention-free RACH preamble.
  • the base station may receive a message for requesting system information based on the request time from the at least one terminal (S300). That is, the message for requesting the system information received from the base station may be received at one of the first time point and the second time point, which is the time point indicated by the request time of the system information.
  • the base station may transmit a message including the system information to at least one terminal based on the transmission time (S400). Specifically, when the base station sets the transmission time at which the system information is transmitted to the time point at which the system information is transmitted, at least one terminal transmits a message including the system information at one of the first time point and the second time point, which are the set time points. Can be sent to.
  • the base station when the base station sets the transmission time at which the system information is transmitted to at least one section in which the system information is transmitted, the base station may transmit a message including the system information to at least one terminal in at least one set interval. In this case, the base station may transmit a message including system information to at least one terminal based on a plurality of redundant versions within at least one time interval.
  • At least one terminal may receive a message including system information from the base station based on the transmission time. That is, a message including system information received from at least one terminal may be received at one of a time point and a transmission interval indicated by a transmission time of system information. Specifically, the at least one terminal may monitor the reception of the system information at one of a time point and a transmission interval indicated by the transmission time of the system information. For example, at least one terminal may monitor a system information-RNTI (SI-RNTI) of a physical downlink control channel (PHCCH) of the base station.
  • SI-RNTI system information-RNTI
  • PLCCH physical downlink control channel
  • At least one terminal may receive a transmission time of the system information indicates a transmission interval, and a message including the system information may be received in the transmission period indicated by the transmission time of the system information.
  • at least one terminal may receive a message including system information based on a plurality of duplicated versions within at least one time interval.
  • a base station for transmitting system information may transmit a requestable time for system information to a first time point or a second time point (uplink transmission of at least one terminal). It has been described as settable). However, the base station may not set a first time point or a second time point that is a time point at which system information can be requested.
  • the base station may set only information on the transmission time of the system information in step S100, and may transmit a message containing only information on the transmission time of the system in step S200 in a broadcast manner. Accordingly, at least one terminal is unable to obtain information about the request time of the system information. In this case, at least one terminal may transmit a message for requesting system information to the terminal at the time when uplink transmission is possible as in the second time point described with reference to FIG. 5.
  • FIG. 6 is a conceptual diagram illustrating a first embodiment of a method of operating a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • a communication network may include a base station 610 and a plurality of terminals 621 to 627 for transmitting system information.
  • the plurality of terminals may include a first terminal 621, a second terminal 622, a third terminal 623, a fourth terminal 624, a fifth terminal 625, and a sixth terminal 626.
  • the base station 610 and the plurality of terminals 621 to 627 included in the communication network may refer to the base station and the terminal described with reference to FIG. 1, and are similar to the structure of the communication node described with reference to FIG. 2 or It may have the same structure.
  • the plurality of terminals 621 to 627 may generate a message requesting system information at each of the plurality of terminals 621 to 627, and transmit a message requesting system information to the base station 610.
  • the plurality of terminals 621 to 627 may transmit a message requesting system information to the base station 610 at a time point in which uplink transmission is possible in each of the plurality of terminals 621. That is, when the message for requesting system information is transmitted when uplink transmission is possible, the point in time when the system information can be requested is not set in advance, or the point in time when uplink transmission is possible is set in advance as a point in time to request system information. can do.
  • the base station 610 may receive a message for requesting system information from each of the plurality of terminals 621 to 627 at the time when uplink transmission of each of the plurality of terminals 621 to 627 is possible. Thereafter, the base station 610 may transmit a message including the system information to each terminal at a time after the preset time from the time when the message for requesting the system information is received. That is, the message including the system information is transmitted when the message requesting the system information is received after a preset time from when the message for requesting the system information is received.
  • the time when the system information is transmitted corresponds to the transmission time described with reference to FIG. 5. It may mean that it is set to one time point.
  • the base station 610 may receive a message requesting system information from the first terminal 621 at a first time point. Thereafter, the base station 610 transmits the message including the system information to the first terminal 621 at a second time point after a preset time from a first time point when the message for requesting system information from the first terminal 621 is received. Can transmit In addition, the base station 610 may receive a message requesting system information from the second terminal 622 at a third time point. Thereafter, the base station 610 transmits a message including the system information to the second terminal 622 at a fourth time point that is after a preset time from a third time point when the message for requesting system information from the second terminal 622 is received. Can transmit Through this method, the base station 610 may transmit a message including system information to each of the plurality of terminals 621 to 627.
  • FIG. 7 is a conceptual diagram illustrating a second embodiment of a method of operating a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • a communication network may include a base station 610 and a plurality of terminals 621 to 627 for transmitting system information as described with reference to FIG. 6.
  • the plurality of terminals 621 to 627 included in the communication network may generate a message requesting system information at each of the plurality of terminals 621 to 627, and transmit a message requesting system information to the base station 610. ) Can be sent.
  • the plurality of terminals 621 to 627 may transmit a message requesting system information to the base station 610 at a time point in which uplink transmission is possible in each of the plurality of terminals 621.
  • the message for requesting the system information is transmitted when the uplink transmission is possible, as in FIG. 6, when the system information request time is not set in advance, or when the uplink transmission is possible, the system information can be requested. It may mean a preset point of view.
  • the base station 610 may receive a message for requesting system information from each of the plurality of terminals 621 to 627 at the time when uplink transmission of each of the plurality of terminals 621 to 627 is possible. Thereafter, the base station 610 may transmit a message including the system information to the plurality of terminals 621 to 627 at a point in time at which the system information is transmitted. That is, the transmission of the message including the system information at a preset time point at which the system information is transmitted may mean that the time point at which the system information is transmitted is set to a second time point corresponding to the transmission time described with reference to FIG. 5. .
  • the first terminal 621, the second terminal 622, and the third terminal 623 transmit uplink of each of the first terminal 621, the second terminal 622, and the third terminal 623.
  • a message for requesting system information may be generated and a message for requesting system information may be transmitted to the base station 610.
  • the base station 610 is the first terminal 621, the second terminal 622 and the third terminal 623 from the first terminal 621, the second terminal 622 and the third terminal 623, respectively.
  • messages sequentially request for system information may be received.
  • the base station 610 transmits a message including the system information to the first terminal 621, the second terminal 622, and the third terminal 623 at the preset time point. ) Can be sent.
  • the fourth terminal 624, the fifth terminal 625, the sixth terminal 626, and the seventh terminal 627 are the fourth terminal 624, the fifth terminal 625, and the sixth terminal 626.
  • a message for requesting system information at the time when uplink transmission of each of the seventh terminal 627 is possible and a message for requesting system information may be transmitted to the base station 610.
  • the base station 610 from the fourth terminal 624, the fifth terminal 625, the sixth terminal 626 and the seventh terminal 627, the fourth terminal 624, the fifth terminal 625, When the uplink transmission of each of the sixth terminal 626 and the seventh terminal 627 is possible, a message for sequentially requesting system information may be received.
  • the base station 610 sends a message including the system information at the preset time point to the fourth terminal 624, the fifth terminal 625, and the sixth terminal 626. ) And the seventh terminal 627.
  • the base station 610 may transmit a message including system information to each of the plurality of terminals 621 to 627.
  • FIG. 8 is a conceptual diagram illustrating a third embodiment of an operation method of a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • the communication network includes a base station 610 for transmitting system information, a first group 620-1 including at least one terminal, and a second group 620-2.
  • the first group 620-1 may include the first terminal 621, the second terminal 622, and the third terminal 623 described with reference to FIGS. 6 to 7.
  • the second group 620-2 includes a fourth terminal 624, a fifth terminal 625, a sixth terminal 626, and a seventh terminal 627 described with reference to FIGS. 6 to 7. can do.
  • the first terminal 621, the second terminal 622, and the third terminal 623 included in the first group 620-1 request the system information at a predetermined time point to request the system information.
  • the message may be generated, and a message for requesting system information may be transmitted to the base station 610. That is, when the message for requesting system information is transmitted at a preset time point, it means that the time point at which the system information can be requested is preset in the base station 610, and information about the preset time point is obtained from the base station 610. can do.
  • the base station 610 is the first terminal 621, the second terminal 622 and the third terminal 623 included in the first group 620-1 at a point in time that can be requested system information. May receive a message requesting system information from the system. Subsequently, the base station 610 may generate system information at a predetermined time point at which the system information is transmitted, and the first terminal (620) may include a message including the generated system information in the first group 620-1. 621, the second terminal 622, and the third terminal 623.
  • the base station 610 is the fourth terminal 624, the fifth terminal 625, the sixth terminal included in the second group 620-2 at a point in time at which the system information can be requested in advance.
  • a fourth terminal 624 included in the second group 620-2 may be received from the 626 and the seventh terminal 627 and request a message for requesting system information, and set at a point in time at which the system information is transmitted. ),
  • a message including system information may be transmitted to the fifth terminal 625, the sixth terminal 626, and the seventh terminal 627.
  • FIG. 9 is a conceptual diagram illustrating a fourth embodiment of a method of operating a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • a communication network may include a base station 610 for transmitting system information and a first group 620-1 including at least one terminal.
  • the first group 620-1 may include the first terminal 621, the second terminal 622, and the third terminal 623 described with reference to FIGS. 6 to 7.
  • the first terminal 621, the second terminal 622, and the third terminal 623 included in the first group 620-1 request the system information at a predetermined time point to request the system information.
  • the message may be generated, and a message for requesting system information may be transmitted to the base station 610. That is, when the message for requesting system information is transmitted at a preset time point, it means that the time point at which the system information can be requested is preset in the base station 610, and information about the preset time point is obtained from the base station 610. can do.
  • the base station 610 is the first terminal 621, the second terminal 622 and the third terminal 623 included in the first group 620-1 at a point in time that can be requested system information. May receive a message requesting system information from the system. Thereafter, the base station 610 may generate system information in at least one time interval (in FIG. 9, one time interval) set as a time interval in which system information is transmitted, and includes a message including the generated system information. May be transmitted to the first terminal 621, the second terminal 622, and the third terminal 623 included in the first group 620-1.
  • the time interval during which the system information is transmitted from the base station 610 is system information from the first terminal 621, the second terminal 622, and the third terminal 623 included in the first group 620-1.
  • the message may start from a preset time after the message requesting the received message.
  • the base station 610 may transmit a message including the system information at any point within the time interval in which the system information is transmitted.
  • the base station 610 when the base station 610 is not secured a downlink resource for transmitting a message including the system information, the downlink resource for transmitting a message including the system information within the time interval in which the system information is transmitted At this point, the message including the system information can be transmitted. That is, the time point at which the system information is transmitted from the base station 610 may mean a time point at which downlink resource is secured.
  • the base station 610 may transmit a message including the system information based on a plurality of duplicated versions in at least one time interval which is preset as a time interval in which system information is transmitted. Accordingly, the first terminal 621, the second terminal 622, and the third terminal 623 included in the first group 620-1 may have only one of a plurality of duplicate versions of a message including system information. Even when receiving, system information can be obtained.
  • the base station 610 may set a plurality of time intervals for transmitting system information.
  • the base station 610 may set the plurality of time intervals based on a preset period. That is, the plurality of time intervals may be periodically set based on a preset period.
  • the base station 610 may transmit a message including system information based on a plurality of duplicated versions in each of the plurality of time intervals.
  • the base station 610 may transmit a message including system information based on the first duplicated version in a first time interval of the plurality of time intervals.
  • the base station 610 may transmit a message including system information based on a second duplicated version different from the first duplicated version in a second time interval that is a time interval after the first time interval among the plurality of time intervals. . That is, the base station 610 may transmit a message including system information based on different overlapping versions for a plurality of times.
  • FIG. 10 is a conceptual diagram illustrating a fifth embodiment of a method of operating a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • a communication network may include a base station 610 for transmitting system information and a first group 620-1 including at least one terminal.
  • the first group 620-1 may include the first terminal 621, the second terminal 622, and the third terminal 623 described with reference to FIGS. 6 to 7.
  • the first terminal 621, the second terminal 622, and the third terminal 623 included in the first group 620-1 request the system information at a predetermined time point to request the system information.
  • the message may be generated, and a message for requesting system information may be transmitted to the base station 610.
  • the terminal 620-3 that does not request system information may exist at a preset time point among the plurality of terminals included in the communication network. That is, when the message for requesting system information is transmitted at a preset time point, it means that the time point at which the system information can be requested is preset in the base station 610, and information about the preset time point is obtained from the base station 610. can do.
  • the base station 610 is the first terminal 621, the second terminal 622 and the third terminal 623 included in the first group 620-1 at a point in time that can be requested system information. May receive a message requesting system information from the system. Subsequently, the base station 610 may generate system information at a predetermined time point at which the system information is transmitted, and the first terminal (620) may include a message including the generated system information in the first group 620-1. 621, the second terminal 622, and the third terminal 623.
  • the terminal 620-3 which did not request the system information, did not request the system information to the base station 610, but previously obtained information on the transmission time at which the message including the system information is transmitted from the base station 610. In one case, a message including system information transmitted from the base station 610 may be received. Through this method, the terminal 620-3 that fails to request system information from the communication network to the base station 610 may receive a message including system information transmitted from the base station 610.
  • FIG. 11 is a conceptual diagram illustrating a sixth embodiment of a method of operating a communication node for transmitting system information in a communication network according to an embodiment of the present invention.
  • a communication network includes a base station 610 for transmitting system information and a first group 620-1 including at least one terminal. can do.
  • the first group 620-1 may include the first terminal 621, the second terminal 622, and the third terminal 623 described with reference to FIGS. 6 to 7.
  • the first terminal 621, the second terminal 622, and the third terminal 623 included in the first group 620-1 request the system information at a predetermined time point to request the system information.
  • the message may be generated, and a message for requesting system information may be transmitted to the base station 610.
  • the message for requesting system information at a preset time point may be used based on a scheduling request message transmitted through the PUCCH, which is an uplink control channel. That is, system information requested at a predetermined time point may be requested through a scheduling request message transmitted through a PUCCH, which is an uplink control channel.
  • the base station 610 is the first terminal 621, the second terminal 622 and the third terminal 623 included in the first group 620-1 at a point in time that can be requested system information. May receive a message requesting system information from the system.
  • the terminal 620-3 that does not request system information may exist at a preset time point among the plurality of terminals included in the communication network.
  • the terminal 620-3 that fails to request system information may request system information at any time other than a preset time point for requesting system information.
  • the terminal that does not request the system information may be piggybacked through the PUSCH, which is an uplink data channel. You can send a message requesting information.
  • the base station 610 may receive a message for requesting system information from the terminal 620-3 that fails to request system information. Subsequently, the base station 610 may generate system information at a predetermined time point at which the system information is transmitted, and the first terminal (620) may include a message including the generated system information in the first group 620-1. 621, the second terminal 622, the third terminal 623, and the terminal 620-3 that cannot request the system information.
  • the base station 610 transmits a message requesting system information based on a PUCCH, which is an uplink control channel. Can be sent.
  • the terminal may transmit a message requesting system information to the base station 610 based on an uplink data channel PUSCH.
  • the terminal 620-3 that has not requested system information in the communication network according to an embodiment of the present invention has been described as requesting system information based on the PUSCH, it may not be limited thereto. That is, at least one terminal other than the terminal 620-3 that fails to request system information among the plurality of terminals included in the communication network according to an embodiment of the present invention receives a message for requesting system information based on the PUSCH. It may also transmit to the base station 610.
  • FIG. 12 is a flowchart illustrating a method of operating a communication node for transmitting system information in a communication network according to another embodiment of the present invention.
  • a communication network according to another embodiment of the present invention may be the same as the communication network described with reference to FIG. 5. That is, the communication network according to another embodiment of the present invention may mean an NR communication system supporting communication at a frequency of 6 GHz or more, as well as a frequency lower than 6 GHz. As such, an operation method of a communication node for transmitting system information in a communication network according to another embodiment of the present invention may be performed at a base station. That is, a communication node transmitting system information in a communication network according to another embodiment of the present invention may mean a base station.
  • the base station may receive a message for requesting system information from a plurality of groups including at least one terminal in the communication network (S1210).
  • the plurality of groups may include a first group including at least one terminal and a second group including at least one terminal.
  • the plurality of groups may be divided by terminals for transmitting a message for requesting system information at a preset time point for requesting system information.
  • the at least one terminal included in the first group may be a terminal capable of requesting system information at a first time point, which is a preset time point, or may be a terminal requiring first system information requestable at the first time point.
  • the at least one terminal included in the second group may be a terminal capable of requesting system information at a second time point, which is a preset time point, or may be a terminal requiring second system information requestable at a second time point. That is, at least one terminal included in the first group and at least one terminal included in the second group may be the same as or different from each other.
  • the message for requesting the system information is transmitted at a preset time point, the time when the system information can be requested by the base station is set in advance, and a plurality of terminals included in the communication network have previously obtained information on the preset time point.
  • the base station may preset a first time point for requesting the first system information and a second time point for requesting the second system information. Thereafter, the base station may transmit information about the time point (which may mean information on the request time) set for the request of each system information to a plurality of terminals included in the communication network in advance.
  • a resource used to transmit a message requesting system information may be preset in the base station, and information about the preset resource may be previously transmitted to a plurality of terminals included in the communication network.
  • a resource used for transmitting a message requesting system information at the terminal may be a RACH preamble, and may be transmitted together with information on a time point set for requesting system information.
  • the RACH preamble and the second used for the request of the first system information may be set differently.
  • the RACH preamble and the second system information used for the request of the first system information are different.
  • the RACH preamble used for the request may be set identically. Accordingly, a message for requesting system information received from a plurality of groups may be received based on information on resources and resources on a predetermined time point for requesting system information.
  • the base station may set a plurality of parameters for transmission of system information for each of the plurality of groups (S1220).
  • the plurality of parameters set in the base station may include a transmission time for transmitting system information and an identifier used for transmission of system information.
  • the identifier may be an SI-RNTI used for transmitting system information.
  • the base station determines the transmission time and identifier for the first system information for the first group included in the plurality of groups and the second system information for the second group included in the plurality of groups.
  • the second system information may be set to be distinguished.
  • the base station when the base station sets the transmission time of the first system information and the transmission time of the second system information to be the same, the base station may set different identifiers of the first system information and the second system information. On the contrary, when the transmission time of the first system information and the transmission time of the second system information are set differently, the base station may set the same identifiers of the first system information and the second system information.
  • the base station may transmit a message including system information about the plurality of groups based on the set plurality of parameters (S1230). Specifically, when the base station sets the transmission time of the first system information and the transmission time of the second system information to be the same, the base station may generate a message including each of the first system information and the second system information having different identifiers. And send the generated message. In contrast, when the transmission time of the first system information and the transmission time of the second system information are set differently, the base station may generate a message including the first system information and the second system information each having the same identifier. You can send the generated message.
  • At least one terminal included in each of the plurality of groups may receive a message including system information transmitted from the base station.
  • at least one terminal included in each of the plurality of groups is used to transmit system information when the transmission time of the first system information for the first group and the transmission time of the second system information for the second group are the same.
  • SI-RNTI which is an identifier, can be monitored and system information can be identified through this.
  • a base station for transmitting system information sets a transmission time for transmitting system information after receiving a message requesting system information from a plurality of groups. It has been described as, but not limited to. That is, in a communication network, a base station may preset information on a transmission time at which system information is transmitted (for example, whether or not the transmission times of system information of a plurality of groups are equal) before receiving a message requesting system information. And may transmit information about a set transmission time to a plurality of groups.
  • system information is transmitted at different transmission times in a method of transmitting a message including system information at different transmission times in the base station described with reference to FIG. 12 will be described in detail with reference to FIG. 13. have.
  • FIG. 13 is a conceptual diagram illustrating a method of operating a communication node for transmitting system information in a communication network according to another embodiment of the present invention.
  • a communication network according to another embodiment of the present invention may be the same as the communication network described with reference to FIG. 8. That is, the communication network according to another embodiment of the present invention may include a base station 610 for transmitting system information, a first group 620-1 including at least one terminal, and a second group 620-2. Can be.
  • the first group 620-1 may include the first terminal 621, the second terminal 622, and the third terminal 623 described with reference to FIGS. 6 to 7.
  • the second group 620-2 includes a fourth terminal 624, a fifth terminal 625, a sixth terminal 626, and a seventh terminal 627 described with reference to FIGS. 6 to 7. can do.
  • At least one terminal included in the first group 620-1 and at least one terminal included in the second group 620-2 have been described as being different from each other, but are not limited thereto.
  • at least one terminal included in the first group 620-1 and at least one terminal included in the second group 620-2 may be identical to each other, or partially, as described with reference to FIG. 12. Only the terminal of may be the same.
  • At least one terminal included in the first group 620-1 may have a state in which information about a first predetermined time point at which the request for the first system information is available may be obtained in advance, and the terminal requiring the first system information Can be.
  • at least one terminal included in the second group 620-2 may have a state in which information about a second predetermined time point at which the request for the second system information is available may be obtained in advance, and the terminal requiring the second system information may be obtained. Can be.
  • the first terminal 621, the second terminal 622, and the third terminal 623 included in the first group 620-1 may include a first system at a first time point that is preset to request system information.
  • a message requesting information may be generated, and a message requesting first system information may be transmitted to the base station 610. That is, the message for requesting the first system information is transmitted at the first predetermined time point, so that the first time point for requesting the system information is preset in the base station 610, and the base station 610 receives information about the preset first time point. It may mean that the state is obtained from.
  • the base station 610 may include a first terminal 621, a second terminal 622, and a third terminal included in the first group 620-1 at a first point in time at which the system information can be requested. 623, a message for requesting first system information may be received. Subsequently, the base station 610 may generate first system information at a time point at which the system information is transmitted, and includes a message including the generated first system information in the first group 620-1. The first terminal 621, the second terminal 622, and the third terminal 623 may be transmitted.
  • the base station 610 may include the fourth terminal 624, the fifth terminal 625, and the fourth terminal included in the second group 620-2 at a second time point that is preset to the time when the system information can be requested.
  • the sixth terminal 626 and the seventh terminal 627 may receive a message for requesting the second system information, and the second group 620-2 included in the second group 620-2 at a point in time at which the system information is transmitted.
  • a message including the second system information may be transmitted to the fourth terminal 624, the fifth terminal 625, the sixth terminal 626, and the seventh terminal 627.
  • At least one terminal included in the first group 620-1 and at least one terminal included in the second group 620-2 may request the first system information and the second system information. Since the viewpoints are different from each other, the RACH preamble which is a resource used for the request of the first system information and the RACH preamble that is a resource used for the request of the second system information may be the same. In addition, since the base station 610 is different from the time point at which the first system information is transmitted and the time point at which the second system information is transmitted, the identifier used for transmitting the first system information and the identifier used for transmitting the second system information are different. Can be set to be the same.
  • the methods according to the invention can be implemented in the form of program instructions that can be executed by various computer means and recorded on a computer readable medium.
  • Computer-readable media may include, alone or in combination with the program instructions, data files, data structures, and the like.
  • the program instructions recorded on the computer readable medium may be those specially designed and constructed for the present invention, or may be known and available to those skilled in computer software.
  • Examples of computer readable media include hardware devices that are specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like.
  • Examples of program instructions include machine language code, such as produced by a compiler, as well as high-level language code that can be executed by a computer using an interpreter or the like.
  • the hardware device described above may be configured to operate with at least one software module to perform the operations of the present invention, and vice versa.

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  • Computer Networks & Wireless Communication (AREA)
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  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention concerne un procédé de fonctionnement pour un nœud de communication transmettant des informations système dans un réseau de communication. Selon un mode de réalisation de la présente invention, le procédé de fonctionnement d'un nœud de communication transmettant des informations système dans un réseau de communication est un procédé de fonctionnement pour une station de base qui transmet des informations système dans un réseau de communication, et comprend les étapes consistant : à configurer des informations concernant un temps de demande lorsque des informations système sont demandées, et un temps de transmission lorsque les informations système sont transmises dans un réseau de communication ; à transmettre un message comportant les informations configurées concernant le temps de demande et le temps de transmission à l'aide d'un procédé basé sur une diffusion ; à recevoir, d'au moins un équipement utilisateur inclus dans le réseau de communication, un message demandant les informations système sur la base du temps de demande ; et à transmettre un message comportant les informations système au ou aux équipements utilisateurs sur la base du temps de transmission.
PCT/KR2017/015214 2016-12-22 2017-12-21 Procédé de fonctionnement pour un nœud de communication transmettant des informations système dans un réseau de communication Ceased WO2018117677A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP17883119.4A EP3562079B1 (fr) 2016-12-22 2017-12-21 Procédé de fonctionnement pour un noeud de communication transmettant des informations système dans un réseau de communication
CN201780052884.7A CN109644112B (zh) 2016-12-22 2017-12-21 用于通信节点在通信网络中发送系统信息的操作方法
US16/318,393 US11044758B2 (en) 2016-12-22 2017-12-21 Operation method for communication node transmitting system information in communication network
JP2019510855A JP6924819B2 (ja) 2016-12-22 2017-12-21 通信ネットワークでシステム情報を送信する通信ノードの動作方法

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
KR10-2016-0176782 2016-12-22
KR20160176782 2016-12-22
KR10-2017-0078782 2017-06-21
KR20170078782 2017-06-21
KR10-2017-0173909 2017-12-18
KR1020170173909A KR102531880B1 (ko) 2016-12-22 2017-12-18 통신 네트워크에서 시스템 정보를 전송하는 통신 노드의 동작 방법

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US20140334372A1 (en) * 2013-05-10 2014-11-13 Sierra Wireless, Inc. Method and apparatus for communication of system information in a wireless system
US20150382284A1 (en) * 2013-02-25 2015-12-31 Teleponaktiebolaget L M Ericsson (Publ) Extended System Information Distribution Mechanisms
US20160270013A1 (en) * 2015-03-13 2016-09-15 Qualcomm Incorporated Discovery and synchronization channels for user-tracking zones in a cellular network
WO2016198909A1 (fr) * 2015-06-11 2016-12-15 Intel IP Corporation Acquisition d'informations de système à faible surcharge pour une communication sans fil

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US20120063370A1 (en) * 2008-12-09 2012-03-15 Chandrika Worrall Communication system, apparatus and methods for providing and acquiring a system information message
US20150382284A1 (en) * 2013-02-25 2015-12-31 Teleponaktiebolaget L M Ericsson (Publ) Extended System Information Distribution Mechanisms
US20140334372A1 (en) * 2013-05-10 2014-11-13 Sierra Wireless, Inc. Method and apparatus for communication of system information in a wireless system
US20160270013A1 (en) * 2015-03-13 2016-09-15 Qualcomm Incorporated Discovery and synchronization channels for user-tracking zones in a cellular network
WO2016198909A1 (fr) * 2015-06-11 2016-12-15 Intel IP Corporation Acquisition d'informations de système à faible surcharge pour une communication sans fil

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