WO2018141122A1 - Procédé et dispositif de transmission de message système - Google Patents

Procédé et dispositif de transmission de message système Download PDF

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Publication number
WO2018141122A1
WO2018141122A1 PCT/CN2017/076655 CN2017076655W WO2018141122A1 WO 2018141122 A1 WO2018141122 A1 WO 2018141122A1 CN 2017076655 W CN2017076655 W CN 2017076655W WO 2018141122 A1 WO2018141122 A1 WO 2018141122A1
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WO
WIPO (PCT)
Prior art keywords
synchronization signal
system message
configuration information
order
primary synchronization
Prior art date
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PCT/CN2017/076655
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English (en)
Chinese (zh)
Inventor
刘洋
Original Assignee
北京小米移动软件有限公司
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to CN201780000483.7A priority Critical patent/CN108886720B/zh
Priority to PCT/CN2017/076655 priority patent/WO2018141122A1/fr
Publication of WO2018141122A1 publication Critical patent/WO2018141122A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting system messages.
  • the user equipment needs to acquire configuration information about the current cell to access the current cell before performing cell random access.
  • the network side indicates the configuration information of the cell to the UE through a system message. If the configuration information changes, the network side uses the change system message to notify the UE that the configuration information changes, and the message format is increased, which is a burden for limited network resources.
  • Embodiments of the present invention provide a method and an apparatus for transmitting a system message.
  • the technical solution is as follows:
  • a method for transmitting a system message including:
  • the technical solution provided by the embodiment of the present invention may include the following beneficial effects: when the configuration information is updated, the system uses the system message to notify the user of the update of the device configuration information by the structural change of the system message. Reduced a message and saved network resources.
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially interchanged, including: Orthogonal Frequency Division Multiplexing (OFDM) OFDM symbol position order interchange, or phase position sequence interchange during modulation.
  • OFDM Orthogonal Frequency Division Multiplexing
  • This embodiment provides an implementation manner of multiple location order interchanges, and the user equipment configuration information update is notified by location order interchange.
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially interchanged, including:
  • the positions of the primary and secondary synchronization signals are interchanged with respect to the positional order in the last system message; or
  • the positions of the primary synchronization signal and the secondary synchronization signal are interchanged with respect to the initially specified positional order.
  • the embodiment provides multiple implementation manners, and the position of the primary synchronization signal and the secondary synchronization signal may be sequentially exchanged once each time the configuration information is updated, and the configuration information is not The current position is maintained when updating; or, when the configuration information is not updated, the original position is restored, and the position is sequentially changed once when the configuration information is updated.
  • the primary synchronization signal and the secondary synchronization signal when the first configuration information is consistent with the second configuration information, in the system message, maintain an initial position; or the primary synchronization signal and the secondary synchronization signal remain last time. System message s position.
  • the embodiment provides multiple implementation manners, and the position of the primary synchronization signal and the secondary synchronization signal may be sequentially exchanged once each time the configuration information is updated, and the configuration information is not The current position is maintained when updating; or, when the configuration information is not updated, the original position is restored, and the position is sequentially changed once when the configuration information is updated.
  • a method for transmitting a system message including:
  • the configuration information of the current cell is acquired.
  • the user equipment parses the system message, and determines a first position sequence of the primary synchronization signal and the secondary synchronization signal; Comparing with the existing second position sequence; wherein the first position order and the second position order are interchanged positions; when the first position order is inconsistent with the second position order, acquiring current cell configuration information In order to complete random access to the cell.
  • system information is used regardless of whether the configuration information is updated, which reduces the message type and saves network resources.
  • the first position order when the first position order is inconsistent with the second position order, the first position order is an interchange position of the second position order;
  • the swapping position includes: OFDM symbol position order interchange, or phase position order interchange when modulating.
  • This embodiment provides an implementation manner of multiple location order interchanges, and the user equipment configuration information update is notified by location order interchange.
  • the existing second position sequence includes the positional order of the primary synchronization signal and the secondary synchronization signal in the last system message, or the positional order of the initially specified primary synchronization signal and secondary synchronization signal.
  • the embodiment provides multiple implementation manners, and the position of the primary synchronization signal and the secondary synchronization signal may be sequentially exchanged once each time the configuration information is updated, and the configuration information is not The current position is maintained when updating; or, when the configuration information is not updated, the original position is restored, and the position is sequentially changed once when the configuration information is updated.
  • the method further includes:
  • the technical solution provided by the embodiment of the present invention may include the following beneficial effects: in the embodiment, when the first location sequence is consistent with the second location sequence, the user equipment does not continue to parse the system message, nor does it need to pass through the network.
  • the side obtains the configuration information, but uses the existing configuration information. It saves network resources and reduces device power consumption.
  • a system message transmission apparatus including:
  • An acquiring module configured to acquire first configuration information of a current cell
  • a first determining module configured to determine the first configuration information and the second configuration information indicated by the last system message Consistent
  • a generating module configured to generate a system message when the first configuration information is inconsistent with the second configuration information, where the positions of the primary synchronization signal and the secondary synchronization signal are sequentially exchanged;
  • a sending module configured to send a system message to the user equipment.
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially interchanged, including: Orthogonal Frequency Division Multiplexing (OFDM) OFDM symbol position order interchange, or phase position sequence interchange during modulation.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially interchanged, including:
  • the positions of the primary and secondary synchronization signals are interchanged with respect to the positional order in the last system message; or
  • the positions of the primary synchronization signal and the secondary synchronization signal are interchanged with respect to the initially specified positional order.
  • the primary synchronization signal and the secondary synchronization signal when the first configuration information is consistent with the second configuration information, in the system message, maintain an initial position; or the primary synchronization signal and the secondary synchronization signal remain last time. The location in the system message.
  • a system message transmission apparatus including:
  • a receiving module configured to receive a system message sent by the network side
  • a sequence module configured to parse the system message, and determine a first position sequence of the primary synchronization signal and the secondary synchronization signal
  • a comparison module configured to compare the first position order with an existing second position order; wherein the first position order and the second position order are interchanged positions;
  • an acquiring module configured to acquire configuration information of the current cell when the first location order is inconsistent with the second location order.
  • the first position order when the first position order is inconsistent with the second position order, the first position order is an interchange position of the second position order;
  • the swapping position includes: OFDM symbol position order interchange, or phase position order interchange when modulating.
  • the existing second position sequence includes the positional order of the primary synchronization signal and the secondary synchronization signal in the last system message, or the positional order of the initially specified primary synchronization signal and secondary synchronization signal.
  • the apparatus further includes:
  • the determining module is configured to end parsing the system message when the first location order is consistent with the second location order.
  • a system message transmission apparatus including:
  • a memory for storing processor executable instructions
  • processor is configured to:
  • a system message transmission apparatus including:
  • a memory for storing processor executable instructions
  • processor is configured to:
  • the configuration information of the current cell is acquired.
  • FIG. 1 is a flowchart of a method for transmitting a system message according to an exemplary embodiment.
  • FIG. 2 is a schematic diagram of a frame structure, according to an exemplary embodiment.
  • FIG. 3 is a schematic diagram of a frame structure according to a specific embodiment.
  • FIG. 4 is a flowchart of a method for transmitting a system message according to an exemplary embodiment.
  • FIG. 5 is a flowchart of a method for transmitting a system message according to a specific embodiment.
  • FIG. 6 is a flowchart of a method for transmitting a system message according to a specific embodiment.
  • FIG. 7 is a block diagram of a transmission apparatus of a system message according to an exemplary embodiment.
  • FIG. 8 is a block diagram of a system for transmitting a system message according to a specific embodiment.
  • FIG. 9 is a block diagram of a first determining module according to a specific embodiment.
  • FIG. 10 is a block diagram of a transmission apparatus of a system message according to an exemplary embodiment.
  • FIG. 11 is a block diagram of a system for transmitting a system message according to a second embodiment.
  • FIG. 12 is a block diagram showing a transmission apparatus of a system message according to an exemplary embodiment.
  • FIG. 13 is a block diagram showing a transmission apparatus of a system message according to an exemplary embodiment.
  • the network side periodically sends a system message (SI) to the user equipment to maintain synchronization with the user equipment.
  • SI system message
  • the system message includes synchronization information, which is used to indicate the location of the configuration information (also referred to as key system information) of the cell, so that the user equipment acquires the configuration information and completes the cell random access.
  • the user equipment camps on the current cell for a long time and will receive system messages multiple times. If the configuration information of the cell is updated, the network side sends a change system message to the user equipment, and the location where the system message includes the updated configuration information is changed. It can be seen that there are system messages and system message changes in the related art. Both types of messages occupy network resources, and the user equipment needs to parse two kinds of messages.
  • the configuration information when the configuration information is not updated, the original system message is used, and the positions of the primary synchronization signal and the secondary synchronization signal are the initially specified positions of the system.
  • the configuration information is updated, the system message is still used, but the location of the primary synchronization signal and the secondary synchronization signal in the system message are sequentially exchanged to notify the user equipment.
  • FIG. 1 is a flowchart of a method for transmitting a system message according to an exemplary embodiment, where a method for transmitting a system message is used for a network side, where a network side is a base station or the like. As shown in FIG. 1, the method includes the following steps 101-104.
  • step 101 first configuration information of the current cell is obtained.
  • step 102 it is determined whether the first configuration information is consistent with the second configuration information indicated by the last system message.
  • step 103 when the first configuration information is inconsistent with the second configuration information, a system message is generated, in which the positions of the primary synchronization signal (PSS) and the secondary synchronization signal (SSS) are sequentially interchanged.
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • step 104 a system message is sent to the user equipment.
  • This embodiment is implemented by the network side, and may be a base station (NB) or an evolved base station (eNB).
  • NB base station
  • eNB evolved base station
  • the network side may periodically acquire the first configuration information of the current cell, and determine whether the first configuration information is updated compared to the second configuration information when the system message was last sent. If no update occurs, a system message is generated, and the positions of the primary synchronization signal and the secondary synchronization signal in the system message are in the first position order. For example, the position of the secondary sync signal is first and the position of the master sync signal is at the back.
  • a system message is generated, and the positions of the primary synchronization signal and the secondary synchronization signal in the system message are sequentially exchanged, that is, the second position sequence is adopted.
  • the position of the secondary sync signal is after, and the position of the master sync signal is first.
  • the first configuration information indicated by the primary synchronization signal and the secondary synchronization signal is the updated configuration information.
  • the system message has two functions. One is to indicate the updated configuration information, and the other is to notify the user that the device configuration information has been updated, and the user equipment needs to be updated synchronously.
  • the user equipment is idle in the current cell, periodically receives system messages, and keeps synchronization with the network side by using system messages. And acquiring configuration information of the cell at a specified location of the broadcast channel according to the system message.
  • the user equipment needs to access the cell and switch to the active state.
  • the user equipment sends a cell random access request to the network side according to the obtained configuration information.
  • system message is not changed, and the system message is adopted regardless of whether the configuration information is updated, which reduces the message type and saves network resources.
  • System messages are reused by changing the structure of the system messages.
  • the update notification of the configuration information is realized by the sequential exchange of the position of the primary synchronization signal and the secondary synchronization signal, and the implementation is simple, and the burden on the network side and the user side is reduced.
  • This embodiment is applicable to a time division multiplexing system (TDD) and a frequency division multiplexing system (FDD).
  • TDD time division multiplexing system
  • FDD frequency division multiplexing system
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially interchanged, including: Orthogonal Frequency Division Multiplexing (OFDM) symbol position sequential interchange, or phase position sequence interchange during modulation.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the position of the primary synchronization signal is the position of the third OFDM symbol of subframe 1 and subframe 6.
  • the position of the secondary synchronization signal is the position of the last OFDM symbol of subframe 0 and subframe 5.
  • the secondary sync signal is in the front and the master sync signal is in the back.
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially exchanged, and the secondary synchronization signal is followed by the primary synchronization signal.
  • the position of the primary synchronization signal is the position of the last OFDM symbol of subframe 0 and subframe 5.
  • the position of the secondary synchronization signal is the position of the third OFDM symbol of subframe 1 and subframe 6.
  • positional interchange can achieve positional order interchange.
  • phase modulation parameter values of the two are interchanged.
  • the phase modulation parameter value of the secondary synchronization signal is 1 and the phase modulation parameter value of the primary synchronization signal is 3.
  • the phase modulation parameter value of the primary synchronization signal is 1, and the phase modulation parameter value of the secondary synchronization signal is 3.
  • the change in the phase modulation parameter value causes the phase modulation positions of the primary synchronization signal and the secondary synchronization signal to be sequentially interchanged.
  • This embodiment provides a plurality of implementations of positional sequence interchange, which are applicable to various application scenarios, and are sequential exchange of positions between the primary synchronization signal and the secondary synchronization signal, have no influence on other information blocks, and have good compatibility.
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially interchanged, including:
  • the positions of the primary and secondary synchronization signals are interchanged with respect to the positional order in the last system message; or
  • the positions of the primary synchronization signal and the secondary synchronization signal are interchanged with respect to the initially specified positional order.
  • the initially specified position is as shown in FIG. 2, and the positions of the primary synchronization signal and the secondary synchronization signal in the transmitted system message 1 are as shown in FIG. 2.
  • the configuration information is updated, the positions of the primary synchronization signal and the secondary synchronization signal are sequentially exchanged, and the positions of the primary synchronization signal and the secondary synchronization signal in the transmitted system message 2 are as shown in FIG. 3.
  • the configuration information remains unchanged, and the locations of the primary synchronization signal and the secondary synchronization signal in the transmitted system message 3 are as shown in FIG.
  • the user equipment compares the position sequence of the primary synchronization signal and the secondary synchronization signal in the current system message with the position sequence in the last system message to determine whether the configuration information is updated.
  • the initially specified position is as shown in FIG. 2, and the positions of the primary synchronization signal and the secondary synchronization signal in the transmitted system message 1 are as shown in FIG. 2.
  • the configuration information is updated, the positions of the primary synchronization signal and the secondary synchronization signal are sequentially exchanged, and the positions of the primary synchronization signal and the secondary synchronization signal in the transmitted system message 2 are as shown in FIG. 3.
  • the configuration information remains unchanged, and the positions of the primary synchronization signal and the secondary synchronization signal are restored to the initially specified positions, and the positions of the primary synchronization signal and the secondary synchronization signal in the transmitted system message 3 are as shown in FIG. 2.
  • the user equipment compares the position sequence of the primary synchronization signal and the secondary synchronization signal in the current system message with the initially specified position sequence to determine whether the configuration information is updated.
  • the method further comprises: step A1.
  • step A1 it is determined whether a system message has been sent to the user equipment
  • the step 102 includes: step A2.
  • step A2 when the system message is once sent to the user equipment, it is determined that the first configuration information is compared to the previous Whether the second configuration information of the current cell is updated when the user equipment sends the system message.
  • the user equipment has received a system message when it stays in the cell for a certain period of time (such as a few minutes).
  • the user equipment switches from cell 1 to cell 2 and then to cell 1.
  • a system message is received.
  • the network side records the time when the user equipment moves to the current cell, and compares the time with the time when the system message was last sent to determine whether the user equipment has received the system message. The network side matches the configuration information obtained this time with the configuration information indicated by the previous system message to determine whether the configuration information is updated.
  • the system message When the system message is sent to the user equipment, it is determined whether the first configuration information is updated compared to the second configuration information of the current cell when the system message was sent to the user equipment.
  • the first configuration information is inconsistent with the second configuration information, a system message is generated, in which the positions of the primary synchronization signal (PSS) and the secondary synchronization signal (SSS) are sequentially interchanged.
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • the primary synchronization signal and the secondary synchronization signal when the first configuration information is consistent with the second configuration information, in the system message, maintain an initial position; or the primary synchronization signal and the secondary synchronization signal remain last time. The location in the system message.
  • the first configuration information when the first configuration information is consistent with the second configuration information, it is compatible with the initially specified system message, or is compatible with the last system message.
  • the system message is sent to the user equipment, so that the user equipment accesses the cell.
  • FIG. 4 is a flowchart of a method for transmitting a system message according to an exemplary embodiment, where a method for transmitting a system message is used for a network side, where a network side is an access network device such as a base station. As shown in FIG. 4, the method includes the following steps 401-406.
  • step 401 the latest first configuration information of the current cell is obtained.
  • step 402 it is determined whether a system message has been sent to the user equipment; when the system message has not been sent to the user equipment, step 405 is continued. When the system message was ever sent to the user equipment, step 403 is continued.
  • step 403 it is determined whether the first configuration information is updated compared to the second configuration information of the current cell when the system message was sent to the user equipment.
  • step 404 it is determined whether the first configuration information is updated compared to the second configuration information of the current cell when the system message was sent to the user equipment.
  • step 404 a system message is generated in which the positions of the primary synchronization signal and the secondary synchronization signal are sequentially interchanged.
  • step 405 a system message is generated in which the positions of the primary synchronization signal and the secondary synchronization signal remain at an initial position.
  • step 406 a system message is sent to the user equipment.
  • the user equipment can initiate random access according to the indication of the system message, and the network side receives the cell random access request sent by the user equipment, so that the user equipment completes the cell random access.
  • step 402 and step 403 can be interchanged in position order. It is enough to satisfy two judgment conditions.
  • FIG. 5 is a flowchart of a method for transmitting a system message according to an exemplary embodiment, where a method for transmitting a system message is used for a user equipment, where the user equipment may be a mobile phone, a computer, a digital broadcast terminal, and a messaging device. Equipment, game consoles, tablet devices, medical equipment, fitness equipment, personal digital assistants, etc. As shown in FIG. 5, the method includes the following steps 501 - 504.
  • step 501 a system message sent by the network side is received.
  • step 502 the system message is parsed to determine a first position sequence of the primary synchronization signal and the secondary synchronization signal.
  • step 503 the first position order is compared with an existing second position order; wherein the first position order and the second position order are interchanged positions.
  • step 504 when the first location order is inconsistent with the second location order, the configuration information of the current cell is acquired.
  • the user equipment does not know whether the configuration information is updated, and does not know whether the position sequence of the primary synchronization signal and the secondary synchronization signal in the system message changes.
  • the user equipment moves to the current cell to receive the system message for the first time, it searches for the primary synchronization signal in the system message, and then searches for the secondary synchronization signal forward and backward with the primary synchronization signal as the center, thereby determining the primary synchronization signal and the secondary synchronization.
  • the second position sequence of the signal When the system message is received again, the first position sequence of the primary synchronization signal and the secondary synchronization signal in the system message is determined again. Comparing the first position order with the existing second position order.
  • the configuration information is updated, and the configuration information of the current cell is acquired. Obtaining the location of the configuration information of the current cell according to the parsed primary synchronization signal and the secondary synchronization signal. And listening to the Physical Broadcast Channel (PBCH) to receive broadcast messages and obtain configuration information. When there is a service requirement, cell access and state activation are completed according to the obtained configuration information.
  • PBCH Physical Broadcast Channel
  • the user equipment does not need to receive and parse the change system message, which reduces the message type and saves network resources.
  • the purpose of notifying the user equipment configuration information update is achieved by changing the structure of the synchronization block in the system message.
  • the user equipment parses the primary synchronization signal in the system message to determine whether the configuration information is updated, and does not need to parse the complete system message, thereby reducing the processing load of the device.
  • the first position order when the first position order is inconsistent with the second position order, the first position order is an interchange position of the second position order;
  • the swapping position includes: OFDM symbol position order interchange, or phase position order interchange when modulating.
  • the user equipment When the OFDM symbol position order is used for interchange, the user equipment first parses the primary synchronization signal in the system message according to the initial specified position of the primary synchronization signal, and takes the third OFDM of subframe 1 and subframe 6 as an example in FIG. 2 The position of the symbol performs the main synchronization signal analysis. If the resolution is successful, it is determined that the configuration information is not updated. If the parsing fails, it is determined that the configuration information has been updated. The primary synchronization signal is parsed for the positions of the last OFDM symbols of subframe 0 and subframe 5. If the parsing is successful, it is determined that the configuration information is updated, and if the parsing fails, it is determined that the system message has an error.
  • the user equipment first demodulates the main synchronization signal in accordance with the initially specified phase modulation parameter value 3. If the demodulation is successful, it is determined that the configuration information is not updated. If the demodulation fails, it is determined The information has been updated. The main synchronizing signal is demodulated according to the phase modulation parameter value 1. If the demodulation is successful, it is determined that the configuration information has been updated. If the demodulation fails, it is determined that an error has occurred in the system message.
  • the existing second position sequence includes the positional order of the primary synchronization signal and the secondary synchronization signal in the last system message, or the positional order of the initially specified primary synchronization signal and secondary synchronization signal.
  • the second position sequence is the position order of the primary synchronization signal and the secondary synchronization signal in the last system message.
  • the primary synchronization signal is searched in the system message 1, and then the primary synchronization signal is used as the center, and the secondary synchronization is searched forward and backward.
  • the signal determines the position order 1 of the primary sync signal and the secondary sync signal.
  • the primary synchronization signal and the secondary synchronization signal in the system message 2 are parsed according to the position sequence 1. If the analysis is successful, it is determined that the configuration information has not been updated; if the analysis fails, the primary synchronization is performed in the position sequence 1.
  • the positions of the signal and the secondary synchronization signal are sequentially exchanged to obtain the position sequence 2, and then the primary synchronization signal and the secondary synchronization signal in the system message 2 are parsed according to the position sequence 2. If the analysis is successful, it is determined that the configuration information is updated.
  • the primary synchronization signal and the secondary synchronization signal in the system message 2 are parsed according to the position sequence 2, and the resolution is successful
  • the primary synchronization signal and the secondary synchronization signal in the system message 3 are preferentially parsed according to the position sequence 2. . That is, the positional order of the primary synchronization signal and the secondary synchronization signal in the last system message is preferentially analyzed.
  • the second position sequence is the position order of the initially specified primary synchronization signal and the secondary synchronization signal.
  • the primary synchronization signal is searched in the system message 1, and then the primary synchronization signal is used as the center, and the secondary synchronization is searched forward and backward.
  • the signal determines the position order 1 of the primary sync signal and the secondary sync signal.
  • the primary synchronization signal and the secondary synchronization signal in the system message 2 are parsed according to the position sequence 1. If the analysis is successful, it is determined that the configuration information has not been updated; if the analysis fails, the primary synchronization is performed in the position sequence 1.
  • the positions of the signal and the secondary synchronization signal are sequentially exchanged to obtain the position sequence 2, and then the primary synchronization signal and the secondary synchronization signal in the system message 2 are parsed according to the position sequence 2. If the analysis is successful, it is determined that the configuration information is updated.
  • the primary synchronization signal and the secondary synchronization signal in the system message 2 are parsed according to the position sequence 2, and the resolution is successful
  • the primary synchronization signal and the secondary synchronization signal in the system message 3 are preferentially parsed according to the position sequence 1. . That is, the positional order of the initial predetermined primary synchronization signal and the secondary synchronization signal is preferentially analyzed.
  • the method further includes: step B1
  • step B1 when the first location order is consistent with the second location order, the parsing of the system message ends.
  • the configuration information that has been obtained before may be used, without completing the parsing of the system message, and without listening to the PBCH.
  • the processing load of the user equipment is reduced.
  • the method further comprises: step C1 - step C2.
  • step C1 when the primary synchronization signal in the system message is successfully parsed according to the initial location, it is determined whether the system message has been received by the current cell.
  • step C2 when the system message is received by the current cell, the system message is parsed.
  • the configuration information that has been obtained may be used, without completing the parsing of the system message or listening to the PBCH.
  • the processing load of the user equipment is reduced.
  • FIG. 6 is a flowchart of a method for transmitting a system message according to an exemplary embodiment, where a method for transmitting a system message is used for a user equipment, where the user equipment may be a mobile phone, a computer, a digital broadcast terminal, and a messaging device. Equipment, game consoles, tablet devices, medical equipment, fitness equipment, personal digital assistants, etc. As shown in FIG. 5, the method includes the following steps 601-606.
  • step 601 a system message sent by the network side is received.
  • step 602 the primary synchronization signal in the system message is parsed according to the initial location.
  • step 603 when the primary synchronization signal in the system message fails to be parsed according to the initial location, the primary synchronization signal and the secondary synchronization signal in the system message are parsed according to the interchange location.
  • step 604 the configuration information of the current cell is obtained according to the parsed primary synchronization signal and the secondary synchronization signal.
  • step 605 when the primary synchronization signal in the system message is successfully parsed according to the initial location, it is determined whether the system message has been received by the current cell.
  • step 606 the system message is terminated when the system message is received by the current cell.
  • the user equipment When there is a service requirement, the user equipment sends a cell random access request to the network side through the current cell according to the obtained configuration information.
  • FIG. 7 is a block diagram of a system for transmitting a system message, which may be implemented as part or all of an electronic device by software, hardware, or a combination of both, according to an exemplary embodiment.
  • the transmission device of the system message includes: an obtaining module 701, a first determining module 702, a generating module 703, and a sending module 704; wherein:
  • the obtaining module 701 is configured to acquire first configuration information of the current cell.
  • the first determining module 702 is configured to determine whether the first configuration information is consistent with the second configuration information indicated by the last system message.
  • the generating module 703 is configured to generate a system message when the first configuration information is inconsistent with the second configuration information, where the positions of the primary synchronization signal and the secondary synchronization signal are sequentially exchanged.
  • the sending module 704 is configured to send a system message to the user equipment.
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially interchanged, including: Orthogonal Frequency Division Multiplexing (OFDM) OFDM symbol position order interchange, or phase position sequence interchange during modulation.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially interchanged, including:
  • the positions of the primary and secondary synchronization signals are interchanged with respect to the positional order in the last system message; or
  • the positions of the primary synchronization signal and the secondary synchronization signal are interchanged with respect to the initially specified positional order.
  • the apparatus further includes: a second determining module 801.
  • the second determining module 801 is configured to determine whether a system message is sent to the user equipment.
  • the first determining module 702 includes: a first determining submodule 901.
  • the first determining sub-module 901 is configured to determine, when the system message is sent to the user equipment, whether the first configuration information is updated compared to the second configuration information of the current cell when the system message is sent to the user equipment.
  • the primary synchronization signal and the secondary synchronization signal when the first configuration information is consistent with the second configuration information, in the system message, maintain an initial position; or the primary synchronization signal and the secondary synchronization signal remain last time. The location in the system message.
  • FIG. 10 is a block diagram of a system for transmitting a system message, which may be implemented as part or all of an electronic device by software, hardware, or a combination of both, according to an exemplary embodiment.
  • the transmission device of the system message includes: a receiving module 1001, a sequence module 1002, a comparison module 1003, and an obtaining module 1004; wherein:
  • the receiving module 1001 is configured to receive a system message sent by the network side.
  • the sequence module 1002 is configured to parse the system message to determine a first position sequence of the primary synchronization signal and the secondary synchronization signal.
  • the comparing module 1003 is configured to compare the first position order with an existing second position order; wherein the first position order and the second position order are interchanged positions.
  • the obtaining module 1004 is configured to acquire configuration information of the current cell when the first location order is inconsistent with the second location order.
  • the first position order when the first position order is inconsistent with the second position order, the first position order is an interchange position of the second position order;
  • the swapping position includes: OFDM symbol position order interchange, or phase position order interchange when modulating.
  • the existing second position sequence includes the positional order of the primary synchronization signal and the secondary synchronization signal in the last system message, or the positional order of the initially specified primary synchronization signal and secondary synchronization signal.
  • the apparatus further includes: a determining module 1101.
  • the determining module 1101 is configured to end parsing the system message when the first location order is consistent with the second location order.
  • FIG. 12 is a block diagram of an apparatus for transmission of system messages, according to an exemplary embodiment.
  • device 1200 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.
  • Apparatus 1200 can include one or more of the following components: processing component 1202, memory 1204, power component 1206, multimedia component 1208, audio component 1210, input/output (I/O) interface 1212, sensor component 1214, and Communication component 1216.
  • Processing component 1202 typically controls the overall operation of device 1200, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations.
  • Processing component 1202 can include one or more processors 1220 to execute instructions to perform all or part of the steps of the above described methods.
  • processing component 1202 can include one or more modules to facilitate interaction between component 1202 and other components.
  • processing component 1202 can include a multimedia module to facilitate interaction between multimedia component 1208 and processing component 1202.
  • Memory 1204 is configured to store various types of data to support operation at device 1200. Examples of such data include instructions for any application or method operating on device 1200, contact data, phone book data, messages, pictures, videos, and the like.
  • the memory 1204 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk.
  • SRAM static random access memory
  • EEPROM electrically erasable programmable read only memory
  • EPROM erasable Programmable Read Only Memory
  • PROM Programmable Read Only Memory
  • ROM Read Only Memory
  • Magnetic Memory Flash Memory
  • Disk Disk or Optical Disk.
  • Power component 1206 provides power to various components of device 1200.
  • Power component 1206 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 1200.
  • Multimedia component 1208 includes a screen between the device 1200 and a user that provides an output interface.
  • the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user.
  • the touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor may sense not only the boundary of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation.
  • the multimedia component 1208 includes a front camera and/or a rear camera. When the device 1200 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.
  • the audio component 1210 is configured to output and/or input an audio signal.
  • audio component 1210 includes a microphone (MIC) that is configured to receive an external audio signal when device 1200 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode.
  • the received audio signal may be further stored in memory 1204 or transmitted via communication component 1216.
  • audio component 1210 also includes a speaker for outputting an audio signal.
  • the I/O interface 1212 provides an interface between the processing component 1202 and the peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.
  • Sensor assembly 1214 includes one or more sensors for providing status assessment of various aspects to device 1200.
  • sensor assembly 1214 can detect an open/closed state of device 1200, a relative positioning of components, such as the display and keypad of device 1200, and sensor component 1214 can also detect a change in position of one component of device 1200 or device 1200. The presence or absence of contact by the user with the device 1200, the orientation or acceleration/deceleration of the device 1200 and the temperature change of the device 1200.
  • Sensor assembly 1214 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact.
  • Sensor assembly 1214 may also include a light sensor, such as a CMOS or CCD image transmission Sensor for use in imaging applications.
  • the sensor assembly 1214 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
  • Communication component 1216 is configured to facilitate wired or wireless communication between device 1200 and other devices.
  • the device 1200 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof.
  • communication component 1216 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel.
  • the communication component 1216 also includes a near field communication (NFC) module to facilitate short range communication.
  • NFC near field communication
  • the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.
  • RFID radio frequency identification
  • IrDA infrared data association
  • UWB ultra-wideband
  • Bluetooth Bluetooth
  • device 1200 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
  • ASICs application specific integrated circuits
  • DSPs digital signal processors
  • DSPDs digital signal processing devices
  • PLDs programmable logic devices
  • FPGA field programmable A gate array
  • controller microcontroller, microprocessor, or other electronic component implementation for performing the above methods.
  • non-transitory computer readable storage medium comprising instructions, such as a memory 1204 comprising instructions executable by processor 1220 of apparatus 1200 to perform the above method.
  • the non-transitory computer readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.
  • a system for transmitting a system message including:
  • a memory for storing processor executable instructions
  • processor is configured to:
  • the above processor can also be configured to:
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially interchanged, including: Orthogonal Frequency Division Multiplexing (OFDM) OFDM symbol positional order interchange, or phase position sequence interchange during modulation.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the above processor can also be configured to:
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially exchanged, including:
  • the positions of the primary and secondary synchronization signals are interchanged with respect to the positional order in the last system message; or
  • the positions of the primary synchronization signal and the secondary synchronization signal are interchanged with respect to the initially specified positional order.
  • the above processor can also be configured to:
  • the primary synchronization signal and the secondary synchronization signal maintain the initial position; or the primary synchronization signal and the secondary synchronization signal maintain the position in the last system message.
  • a non-transitory computer readable storage medium when instructions in the storage medium are executed by a processor of the apparatus 1200, to enable the apparatus 1200 to perform the method of transmitting a system message as described above, the method comprising:
  • the instructions in the storage medium may further include:
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially interchanged, including: Orthogonal Frequency Division Multiplexing (OFDM) OFDM symbol positional order interchange, or phase position sequence interchange during modulation.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the instructions in the storage medium may further include:
  • the positions of the primary synchronization signal and the secondary synchronization signal are sequentially exchanged, including:
  • the positions of the primary and secondary synchronization signals are interchanged with respect to the positional order in the last system message; or
  • the positions of the primary synchronization signal and the secondary synchronization signal are interchanged with respect to the initially specified positional order.
  • the instructions in the storage medium may further include:
  • the primary synchronization signal and the secondary synchronization signal maintain the initial position; or the primary synchronization signal and the secondary synchronization signal maintain the position in the last system message.
  • a system for transmitting a system message including:
  • a memory for storing processor executable instructions
  • processor is configured to:
  • the configuration information of the current cell is acquired.
  • the above processor can also be configured to:
  • the first position order is an interchange position of the second position order
  • the swapping position includes: OFDM symbol position order interchange, or phase position order interchange when modulating.
  • the above processor can also be configured to:
  • the existing second position sequence includes the position order of the primary synchronization signal and the secondary synchronization signal in the last system message, or the position order of the initially specified primary synchronization signal and the secondary synchronization signal.
  • the above processor can also be configured to:
  • the method further includes:
  • a non-transitory computer readable storage medium when instructions in the storage medium are executed by a processor of the apparatus 1200, to enable the apparatus 1200 to perform the method of transmitting a system message as described above, the method comprising:
  • the configuration information of the current cell is acquired.
  • the instructions in the storage medium may further include:
  • the first position order is an interchange position of the second position order
  • the swapping position includes: OFDM symbol position order interchange, or phase position order interchange when modulating.
  • the instructions in the storage medium may further include:
  • the existing second position sequence includes the position order of the primary synchronization signal and the secondary synchronization signal in the last system message, or the position order of the initially specified primary synchronization signal and the secondary synchronization signal.
  • the instructions in the storage medium may further include:
  • the method further includes:
  • FIG. 13 is a block diagram of an apparatus 1300 for synchronizing data, according to an exemplary embodiment.
  • device 1300 can be provided as a computer.
  • apparatus 1300 includes a processing component 1322 that further includes one or more processors, and memory resources represented by memory 1332 for storing instructions executable by processing component 1322, such as an application.
  • An application stored in memory 1332 may include one or more modules each corresponding to a set of instructions.
  • processing component 1322 is configured to execute instructions to perform the method described above to synchronize data.
  • Apparatus 1300 can also include a power supply component 1326 configured to perform power management of apparatus 1300, a wired or wireless network interface 1350 configured to connect apparatus 1300 to the network, and an input/output (I/O) interface 1358.
  • the device 1300 can operate based on an operating system stored in the memory 1332, such as Windows ServerTM, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM or the like.

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

Abstract

La présente invention concerne un procédé et un appareil destinés à transmettre un message système. Le procédé comprend: l'acquisition de premières informations de configuration pour une cellule du moment; la détermination de la correspondance ou de la non correspondance entre les premières informations de configuration et les secondes informations de configuration comme indiqué dans le message système précédent; la génération d'un message système lorsque les premières informations de configuration et les secondes informations de configuration ne correspondent pas, un signal synchrone principal et un signal synchrone auxiliaire permutent leur position dans une séquence dans le message système; et l'envoi du message système à un matériel utilisateur. Au moyen du système selon la présente invention, il n'est plus nécessaire de modifier un message système, ce qui a pour effet d'économiser les ressources. En outre, le parsage du message système peut être simplifié, ce qui a pour effet de réduire la consommation d'énergie du matériel.
PCT/CN2017/076655 2017-03-14 2017-03-14 Procédé et dispositif de transmission de message système WO2018141122A1 (fr)

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Citations (3)

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CN102932857A (zh) * 2011-08-12 2013-02-13 中兴通讯股份有限公司 一种无线资源控制连接恢复方法、基站及终端
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WO2016056843A1 (fr) * 2014-10-07 2016-04-14 엘지전자 주식회사 Procédé d'émission d'un signal de synchronisation pour la communication de dispositif à dispositif dans un système de communication sans fil et appareil associé

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KR100938756B1 (ko) * 2007-07-06 2010-01-26 엘지전자 주식회사 무선통신 시스템에서 셀 탐색 과정을 수행하는 방법
CN103379072B (zh) * 2012-04-20 2016-12-14 电信科学技术研究院 一种信号传输方法及装置
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CN104718777A (zh) * 2012-08-13 2015-06-17 Lg电子株式会社 在无线lan系统中更新系统信息的方法和装置
WO2016056843A1 (fr) * 2014-10-07 2016-04-14 엘지전자 주식회사 Procédé d'émission d'un signal de synchronisation pour la communication de dispositif à dispositif dans un système de communication sans fil et appareil associé

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