WO2019061369A1 - 一种信号发送、接收方法及装置 - Google Patents

一种信号发送、接收方法及装置 Download PDF

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Publication number
WO2019061369A1
WO2019061369A1 PCT/CN2017/104674 CN2017104674W WO2019061369A1 WO 2019061369 A1 WO2019061369 A1 WO 2019061369A1 CN 2017104674 W CN2017104674 W CN 2017104674W WO 2019061369 A1 WO2019061369 A1 WO 2019061369A1
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WIPO (PCT)
Prior art keywords
signal
terminal
system information
wus
mpdcch
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PCT/CN2017/104674
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English (en)
French (fr)
Inventor
费永强
余政
南方
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华为技术有限公司
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Priority to PCT/CN2017/104674 priority Critical patent/WO2019061369A1/zh
Publication of WO2019061369A1 publication Critical patent/WO2019061369A1/zh

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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

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a signal transmitting and receiving method and apparatus.
  • MTC service refers to the acquisition of information about the physical world by deploying various devices with certain sensing, computing, execution, and communication capabilities, and realizes information transmission, coordination, and processing through the network, thereby realizing the interconnection of people, objects, and objects.
  • wireless between a terminal for example, a user equipment (UE)
  • a network device for example, a base station (base station, BS) or an enhanced Node B (eNB)
  • SI system information
  • a terminal acquires a synchronization signal (primary synchronization signal, PSS)/secondary synchronization signal ( Secondary synchronization signal (SSS)), and then acquires a master information block (MIB) carried on a physical broadcast channel (PBCH) and multiple system information blocks (System Information) for the terminal to acquire system information.
  • PSS primary synchronization signal
  • SSS Secondary synchronization signal
  • MIB master information block
  • PBCH physical broadcast channel
  • System Information System Information
  • SIB System Information
  • a plurality of SIBs can be written as SIB1, SIB2, ..., SIB21, and the like.
  • the terminal supporting the MTC service has a narrow bandwidth and is usually smaller than the system bandwidth.
  • the terminal supporting the MTC service learns the control information by detecting the physical downlink control channel (MPDCCH) of the device type communication, so the LTE supporting the MTC service is supported.
  • the bandwidth-compressed SIB1 (Bandwidth-Reduced SIB1, SIB1-BR) may be transmitted, and the SIB1-BR includes scheduling information of other SIBs such as SIB2, ..., SIB21, but the transmission bandwidth is only one narrow band.
  • the bandwidth of the Narrowband (NB) enables the terminal supporting the MTC service to obtain scheduling information of other SIBs by receiving the SIB1-BR.
  • the scheduling information of the SIB1-BR (SchedulingInfoSIB1-BR) is carried in the MIB.
  • the terminal supporting the MTC service obtains the scheduling information of the SIB1-BR by reading the schedulingInfoSIB1-BR in the MIB (whether the SIB1-BR exists, and which SIB1-BR is in the SIB1-BR) Transmission on time-frequency resources and the size of the transport block, etc.).
  • the terminal may indicate the system information according to the value of the systemInfoValueTag in the SIB1-BR, or the paging message or the direct indication information (DII). Whether systemInfoModification or systemInfoModification-eDRX changes in the next system information change period to determine whether the system information has changed, and when the system information is determined to change, the system information is reacquired.
  • the terminal obtains system information in the above manner, system information that cannot be changed in time may often occur, or the system information may not be reliably changed without changing the system information, that is, the current system information indication method is time-sensitive. Lower.
  • the embodiment of the present application provides a signal sending and receiving method and device, so that the terminal can determine system information in time. Whether it has changed.
  • a signal transmitting method in which a network device determines a first signal and a second signal, and transmits a first signal or a second signal to a terminal, where the first signal and the second signal For different signals.
  • the first signal is used to indicate that the system information has changed within a set duration
  • the second signal is used to indicate that the system information has not changed within the set duration.
  • the network device can send a first signal to the terminal within a set time period after the system information changes to indicate that the system information changes within a set time period. After the duration of the change of the system information reaches the set duration, the second signal is sent to the terminal to indicate that the system information has not changed within the set duration.
  • the first signal is used to instruct the terminal to read system information
  • the second signal indicates that the terminal does not need to read system information.
  • the network device sends a first signal within a set duration after the terminal is instructed to read the system information to instruct the terminal to read the system information. After the length of time after the terminal is instructed to read the system information reaches the set duration, the second signal is sent to indicate that the terminal does not need to read the system information.
  • a signal receiving method receives a first signal sent by a network device, and determines, according to the first signal, that the system information changes within a set time period or determines that system information needs to be read. Or the terminal receives the second signal sent by the network device, determines, according to the second signal, that the system information does not change within the set duration or determines that the system information does not need to be read.
  • the terminal receives a first signal sent by the network device within the set duration after the system information changes, and the first signal is used to indicate that the system information changes within a set duration, and the terminal according to the The first signal determines that the system information has changed within a set length of time.
  • the terminal receives the first signal sent by the network device within a set duration after the terminal is instructed to read the system information, and the first signal is used to instruct the terminal to read the system information, and the terminal determines, according to the first signal, that the system information needs to be read.
  • the second signal sent by the terminal after the network device indicates that the terminal has read the system information reaches the set duration, and the second signal is used to indicate that the terminal does not need to read the system information, and the terminal determines that the terminal does not need to use the second signal. Read system information.
  • the present application provides a signal transmitting apparatus applied to a network device, the signal transmitting apparatus including means or means for performing various steps performed by the network device involved in the above first aspect.
  • the present application provides a signal receiving apparatus for a terminal, the signal receiving apparatus comprising means or means for performing the steps performed by the terminal involved in the second aspect above.
  • the present application provides a network device including at least one processing element for storing a program and data, and at least one storage element for performing the first application of the present application The method provided in the aspect.
  • the present application provides a terminal comprising at least one processing element for storing a program and data, and at least one storage element for performing the second aspect of the present application The method provided in .
  • the present application provides a chip connected to a memory for reading and executing a software program stored in the memory to implement the functions performed by the network device involved in the first aspect.
  • the present application provides a chip connected to a memory for reading and executing a software program stored in the memory to implement the functions performed by the terminal involved in the second aspect.
  • a computer storage medium in a ninth aspect, storing computer instructions that, when executed on a computer, can perform any of the methods of the first aspect or the second aspect.
  • a computer program product comprising a computer program for performing any one of the methods of the first aspect or the second aspect.
  • the network device sends a signal to the terminal for indicating whether the system information changes or for indicating whether the terminal needs to read system information.
  • the terminal receives a signal sent by the network device to indicate whether the system information changes or is used to indicate whether the terminal needs to read system information, and determines whether the system information changes or whether system information needs to be read.
  • the signal sending method and the signal receiving method provided by the embodiments of the present application enable the terminal to determine whether the system information changes in time, and then determine whether the system information needs to be re-acquired.
  • the first signal and the second signal may be generated by processing the same signal, for example, the first signal may be generated according to the third signal, and the second signal is generated according to the first signal.
  • the first signal and the second signal may be generated by processing the same signal, for example, the first signal may be generated according to the third signal, and the second signal is generated according to the first signal.
  • the first signal and the second signal respectively adopt at least one of scrambling the third signal, conjugate the third signal, and sequentially adjusting symbols and/or subcarriers of the third signal. Ways to generate.
  • the first signal is generated by scrambling the third signal using the first scrambling code
  • the second signal may be generated by scrambling the third signal using a second scrambling code orthogonal to the first scrambling code.
  • the first signal is generated by adopting a conjugate mode for the third signal, and the second signal is generated by not conjugate the third signal.
  • the second signal is generated by adopting a conjugate mode for the third signal, and the first signal is generated by not conjugate the third signal.
  • the first signal may be a signal obtained by sequentially adjusting symbols and/or subcarriers of the third signal, and the second signal may be a symbol and/or a subcarrier by using the third signal.
  • a signal obtained by sequentially adjusting other order adjustment methods different from the order adjustment method used to obtain the first signal is performed.
  • the first signal may be generated by scrambling the third signal by using the first scrambling code and conjugated by the scrambled third signal, and the second signal may be adopted by using the first scrambling code The second scrambling code is scrambled to generate a third signal.
  • the third signal is periodically sent and may be a signal detected by an autocorrelation or cross-correlation method.
  • the third signal may be a WUS or a synchronization signal.
  • the WUS includes a first WUS for instructing the terminal to detect a physical downlink control channel MPDCCH of the machine type communication, and a second WUS for indicating that the terminal does not need to detect the MPDCCH.
  • the network device sends the first signal generated according to the first WUS in the set duration after the system information is changed, and the first signal generated according to the first WUS is used to instruct the terminal to detect the MPDCCH and the system The information has changed within the set length of time.
  • the terminal receives the first signal sent by the network device within the set duration after the system information changes, determines, according to the first signal, that the MPDCCH needs to be detected, and the system information changes within a set duration. or,
  • the first signal generated by the second WUS is sent by the network device after the system information is changed, and the first signal generated according to the second WUS is used to indicate that the terminal does not need to detect the MPDCCH and the system information It has changed within the set length.
  • the terminal receives the first signal sent by the network device within the set duration after the system information changes, and determines, according to the first signal, that the MPDCCH is not required to be detected and the system information changes within a set duration. or,
  • the network device After the network device changes the length of the system information, the network device sends the first WUS according to the set duration.
  • the generated second signal is used to indicate that the terminal detects the MPDCCH and the system information does not change within the set duration. And receiving, by the terminal, a second signal sent by the network device after the system information changes to the set duration, determining, according to the second signal, that the MPDCCH needs to be detected, and the system information does not change within the set duration. or,
  • the MPDCCH and system information does not change within the set duration.
  • the first signal generated by the first WUS is sent by the network device to indicate that the terminal detects the MPDCCH and instructs the terminal to read the system information, after the network device sends the first signal generated by the first WUS. .
  • the terminal receives a first signal that is sent by the network device within a set duration after the terminal is instructed to read the system information, and determines, according to the first signal, that the MPDCCH needs to be detected and needs to read the system information. or,
  • the first signal generated according to the second WUS is used to indicate that the terminal does not need to detect the MPDCCH and instruct the terminal to read
  • the first signal generated by the second WUS is sent by the network device after the terminal device is instructed to read the system information. system message.
  • the terminal receives the first signal sent by the network device within a set duration after the terminal is instructed to read the system information, and determines, according to the first signal, that the MPDCCH does not need to be detected and needs to read the system information. or,
  • the second signal generated according to the first WUS is used to instruct the terminal to detect the MPDCCH and indicate the terminal No need to read system information.
  • the terminal receives a second signal that is sent by the network device after the terminal device reads the system information for a set period of time, and determines, according to the second signal, that the MPDCCH needs to be detected and does not need to read the system information. or,
  • the second signal generated by the second WUS is sent by the network device to indicate that the terminal does not need to detect the MPDCCH, and the second signal generated by the second WUS is sent after the network device indicates that the terminal has read the system information for the set time length. Indicates that the terminal does not need to read system information.
  • the terminal receives a second signal that is sent after the network device indicates that the terminal has read the system information for a set period of time, and determines, according to the second signal, that the MPDCCH does not need to be detected and does not need to read the system information.
  • the network device generates the first signal or the second signal according to the first WUS or the second WUS, and after receiving the first signal or the second signal, the terminal not only enables the terminal to know whether it is awakened, but also knows the system. Changes in information.
  • the WUS is a WUS for instructing the terminal to detect the MPDCCH.
  • the network device sends a first signal generated according to the WUS in the set duration after the system information is changed, and the first signal generated according to the WUS is used to instruct the terminal to detect the MPDCCH and the system The information has changed within the set length of time.
  • the terminal After receiving the first signal sent by the network device within the set duration after the system information changes, the terminal determines that the MPDCCH needs to be detected according to the first signal, and the system information changes within a set duration. or,
  • the first signal generated according to the WUS is sent by the network device to indicate that the terminal detects the MPDCCH and instructs the terminal to read the system information.
  • the terminal receives a first signal that is sent by the network device within a set duration after the terminal is instructed to read the system information, and determines, according to the first signal, that the MPDCCH needs to be detected and needs to read the system information. or
  • the second signal generated by the WUS is sent, and the second signal generated by the WUS is used to indicate that the terminal detects the MPDCCH and indicates that the terminal does not need to Read system information.
  • the terminal receives a second signal that is sent by the network device after the terminal device reads the system information for a set period of time, and determines, according to the second signal, that the MPDCCH needs to be detected and does not need to read the system information.
  • the WUS carries information for indicating whether the system information changes or carries information for indicating whether the terminal reads the system information, so that when the terminal receives the WUS, it determines that the MPDCCH needs to be detected, and can obtain the system information. Whether there has been a change in a period of time, or whether it is necessary to read system information.
  • the system information may be an MIB, and the change of the system information may refer to a change in the content of the MIB.
  • the system information may be MIB and/or SIB1, and the change of the system information may mean that the content of the MIB and/or SIB1 changes.
  • the system information may be other SIB information than SIB10, SIB11, SIB12, and SIB14, and the change of the system information may refer to changes in the contents of other SIBs other than SIB10, SIB11, SIB12, and SIB14.
  • the system information may be one or more of SIB information, MIB information, and SIB1 information except SIB1, SIB10, SIB11, SIB12, and SIB14.
  • the change of system information may refer to SIB1, SIB10, SIB11, and SIB12.
  • the method and device for transmitting and receiving a signal provided by the embodiment of the present application the network device, by sending two different signals, the first signal or the second signal, to the terminal, so that the terminal can determine whether the system information changes or determine whether it needs to be read in time.
  • System information improves the timeliness of network device indication system information.
  • FIG. 1 is a schematic flowchart of a terminal initially accessing a network to acquire system information
  • FIG. 2 is a system architecture diagram of a signal transmission and reception method according to an embodiment of the present application.
  • FIG. 3 is a flowchart of an implementation of a signal sending and receiving method according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a process of scrambling a WUS according to an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a process for generating a first sub-signal and a second sub-signal according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of another process for generating a first sub-signal and a second sub-signal according to an embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram of a signal sending apparatus applied to a network device according to an embodiment of the present disclosure
  • FIG. 8 is a schematic structural diagram of a signal receiving apparatus applied to a terminal according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • the terminal also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • Devices for example, handheld devices with wireless connectivity, in-vehicle devices, and the like.
  • terminals are: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices, virtual reality (VR) devices, augmented reality.
  • MIDs mobile internet devices
  • VR virtual reality
  • augmented reality, AR augmented reality, AR
  • wireless terminals in industrial control wireless terminals in self driving, wireless terminals in remote medical surgery, smart grid Wireless terminals, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and the like.
  • Network device refers to a device in a wireless network, for example, a radio access network (RAN) node (or device) that accesses a terminal to a wireless network, and may also be referred to as a base station.
  • RAN nodes are: a continuation of evolved Node B (gNB), a transmission reception point (TRP), an evolved Node B (eNB), and a radio network controller (radio network controller, RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (for example, home evolved NodeB, or home Node B, HNB) , a base band unit (BBU), or a wireless fidelity (Wifi) access point (AP).
  • gNB evolved Node B
  • TRP transmission reception point
  • eNB evolved Node B
  • RNC radio network controller
  • Node B Node B
  • BSC base station controller
  • BTS base transceiver station
  • home base station for example, home evolved NodeB, or
  • the RAN may include a centralized unit (CU) node and a distributed unit (DU) node.
  • CU centralized unit
  • DU distributed unit
  • This structure separates the protocol layer of the eNB in the long term evolution (LTE) system, and the functions of some protocol layers are centrally controlled in the CU, and the functions of the remaining part or all of the protocol layers are distributed in the DU by the CU. Centrally control the DU.
  • LTE long term evolution
  • Multiple means two or more, and other quantifiers are similar. "and/or”, describing the association relationship of the associated objects, indicating that there may be three relationships, for example, A and/or B, which may indicate that there are three cases where A exists separately, A and B exist at the same time, and B exists separately.
  • the character "/" generally indicates that the contextual object is an "or" relationship.
  • Interaction refers to the process in which the two parties exchange information with each other.
  • the information transmitted here may be the same or different.
  • the two parties are the base station 1 and the base station 2, and the base station 1 may request information from the base station 2, and the base station 2 provides the base station 1 with the information requested by the base station 1.
  • the base station 1 and the base station 2 may request information from each other, and the information requested here may be the same or different.
  • the signal transmitting method and the signal receiving method provided by the embodiments of the present application are applicable to a communication system in which an entity that transmits downlink data and an entity that receives downlink data exist.
  • the entity that sends the downlink data is the network device, and the entity that receives the downlink data is the terminal.
  • the description is of course not limited.
  • the signal sending and receiving methods provided in the embodiments of the present application may be applied to an LTE system or an LTE-A system that supports the MTC service.
  • the signal sending method and the signal receiving method provided by the embodiments of the present application may be used. It is applied to the communication system shown in FIG. 2.
  • the network device and the terminals 1 to 6 constitute a communication system.
  • the network device can be understood as an entity for transmitting or receiving signals on the network side, and can be sent to the terminal 1 to the terminal. 6 Send downlink data.
  • the terminal 1 to the terminal 6 may be any type of terminal, and may be, for example, a bandwidth-reduced low-complexity UE (BL UE) and a coverage enhanced UE (CE UE) that perform MTC services. Wait.
  • the terminal 1 to the terminal 6 need to receive the downlink data sent by the network device, and feedback the downlink data to the network device in a certain manner.
  • the terminal 4 to the terminal 6 may also constitute a communication subsystem.
  • the network device sends the downlink data to the terminal 1, the terminal 2, the terminal 3, the terminal 5, and the like; the terminal 5 can send the downlink information to the terminal 4 and the terminal 6, and the terminal 4 and the terminal 6 receive the downlink data sent by the terminal 5.
  • the communication system shown in FIG. 2 is only described by taking one network device as an example, but the embodiment of the present application is not limited thereto.
  • more network devices may be included in the communication system; similarly, communication More terminals may also be included in the system, and may also include other devices.
  • the communication system in the embodiment of the present application may refer to a Public Land Mobile Network (PLMN) or a Device to Device (D2D) network or an M2M network or other network.
  • PLMN Public Land Mobile Network
  • D2D Device to Device
  • FIG. 2 is only An exemplary simplified schematic diagram may also include other devices in the communication network, not shown in FIG.
  • the communication system to which the solution in the embodiment of the present application is applied may be an LTE system or an LTE-A system.
  • the solution in the embodiment of the present application may also be applied to other wireless communication systems, for example, 5G New Radio (NR) network.
  • NR 5G New Radio
  • the corresponding names of the network devices and terminals involved in the embodiments of the present application may be names of corresponding functions in the wireless communication network.
  • the network device sends system information to the terminal (for example, when the terminal is initially accessed, or when the system information changes), so that the terminal can learn the information required for subsequent communication.
  • the terminal cannot determine whether the system information changes in time, and the system information may not change, and the terminal attempts to reacquire the system information to waste power consumption.
  • the embodiment of the present application provides a signal sending and receiving method, in which the network device sends a signal to the terminal for indicating whether the system information changes or is used to indicate whether the terminal needs to read system information.
  • the terminal receives a signal sent by the network device to indicate whether the system information changes or is used to indicate whether the terminal needs to read system information, and determines whether the system information changes or whether system information needs to be read.
  • the signal sending method and the signal receiving method provided by the embodiments of the present application enable the terminal to determine whether the system information changes in time, and then determine whether the system information needs to be re-acquired.
  • the network device may send a signal to the terminal to indicate that the system information has changed within the set duration within a set duration after the system information changes, so that the system information changes.
  • the probability of the terminal acquiring the changed system information in time is improved.
  • the network device may reach the set duration after the system information changes.
  • a signal for indicating that the system information has not changed within the set duration is sent, so that the terminal knows that the system information has not changed in time when the system information has not changed, so that the system information does not change. In this case, avoid the terminal trying to reacquire system information, resulting in wasted power consumption.
  • the network device may instruct the terminal to read the system information when the system information changes, and instruct the terminal not to read the system information if the system information does not change within the set duration. Therefore, in the embodiment of the present application, the network device may send a signal for instructing to read system information within a set duration after the terminal is instructed to read the system information, so that the terminal acquires the changed system information in time. After the network device indicates that the terminal has read the system information for a set period of time, a signal indicating that the system information does not need to be read is sent, so that the terminal determines in time that the system information does not change within the set duration.
  • a signal for indicating that the system information has changed within a set time period or for instructing the terminal to read system information for convenience of description may be referred to as a first signal, and will be used to indicate system information in the device.
  • a signal that does not change within a predetermined length or is used to indicate that the terminal does not need to read system information is referred to as a second signal.
  • FIG. 3 is a flowchart of an implementation of a signal sending and receiving method according to an embodiment of the present application. Referring to FIG. 3, the method includes:
  • the network device determines the first signal and the second signal.
  • the first signal and the second signal are different signals.
  • the first signal is used to indicate that the system information has changed within a set duration
  • the second signal is used to indicate that the system information has not changed within the set duration
  • the first signal is used to instruct the terminal to read system information
  • the two signals indicate that the terminal does not need to read system information.
  • the system information may be an MIB, and the change of the system information may refer to a change in the content of the MIB.
  • the system information may be MIB and/or SIB1, and the change of the system information may mean that the content of the MIB and/or SIB1 changes.
  • the system information may be other SIB information than SIB10, SIB11, SIB12, and SIB14, and the change of the system information may refer to changes in the contents of other SIBs other than SIB10, SIB11, SIB12, and SIB14.
  • the system information may be one or more of SIB information, MIB information, and SIB1 information except SIB1, SIB10, SIB11, SIB12, and SIB14.
  • the change of system information may refer to SIB1, SIB10, SIB11, and SIB12.
  • the MIB involved includes a System Frame Number (SFN), which periodically changes with time, and the change of the value is not considered to cause the MIB content to change.
  • SFN System Frame Number
  • the change of the SIB1 content mentioned above may refer to a change of the SIB1-BR content. If the SIB1-BR includes a Hyper-SFN, the value periodically changes with time, and the change of the value is not considered as Causes the SIB1-BR content to change.
  • the network device sends the first signal or the second signal to the terminal.
  • the network device may send a first signal to the terminal within a set duration after the system information changes, to indicate that the system information changes within a set duration. After the duration of the change of the system information reaches the set duration, the second signal is sent to the terminal to indicate that the system information has not changed within the set duration. Or the network device sends the first signal within a set duration after the terminal is instructed to read the system information, and sends the second signal after the duration after the terminal reads the system information reaches the set duration.
  • the terminal receives the first signal sent by the network device, determines, according to the first signal, that the system information changes within a set duration or determines that the system information needs to be read. Or the terminal receives the second signal sent by the network device, determines, according to the second signal, that the system information does not change within the set duration or determines that the system information does not need to be read.
  • the terminal receives a first signal sent by the network device within the set duration after the system information changes, and the first signal is used to indicate that the system information changes within a set duration, and the terminal is configured according to the location
  • the first signal determines that the system information has changed within a set period of time.
  • the terminal receives a second signal sent by the network device after the system information changes, and the second signal is used to indicate that the system information does not change within the set duration, and the terminal is configured according to the The two signal determination system information does not change within the set duration.
  • the terminal receives the first signal sent by the network device within a set duration after the terminal is instructed to read the system information, where the first signal is used to instruct the terminal to read the system information, and the terminal determines, according to the first signal, that the system information needs to be read.
  • the second signal sent by the terminal after the network device indicates that the terminal reads the system information reaches the set duration, and the second signal is used to indicate that the terminal does not need to read the system information, and the terminal determines not according to the second signal. Need to read system information.
  • the set duration of the above is configurable, and for the convenience of description, the duration is represented by X.
  • the duration X can be broadcast by the network device as system information, or can be configured by high-level signaling such as Radio Resource Control (RRC).
  • RRC Radio Resource Control
  • the network device sends the second signal to the terminal after the set duration, or sends the second signal to the terminal after the set duration, and the terminal receives the first signal or the second signal, so that the terminal can learn that the system information is Whether changes have occurred within a certain period of time to determine whether system information needs to be reacquired.
  • the network device sends the first signal or the second signal to the terminal, so that the terminal can determine whether the system information changes in time or determine whether the system information needs to be read, and the network device indication system is improved. Timeliness of information.
  • the signal processed to obtain the first signal and the second signal is referred to as a third signal.
  • the third signal is periodically sent and may be a signal detected by an autocorrelation or cross-correlation method.
  • the third signal may be a wake-up signal (WUS) or a synchronization signal.
  • the synchronization signal may be a PSS, an SSS, or an enhanced synchronization signal (eSS) based on PSS and/or SSS.
  • the first signal may be generated according to the third signal
  • the second signal may be generated according to the third signal that generates the first signal.
  • two different signals, the first signal and the second signal are generated by using the third signal, and symbols such as the scrambled third signal, the third signal conjugate, and the third signal may be used. And/or subcarriers are sequentially adjusted.
  • the first signal and the second signal are generated by scrambling the third signal, and the scrambling mode used by the first signal and the scrambling mode used to generate the second signal are generated.
  • the first signal may be generated by scrambling the third signal by using the first scrambling code
  • the second signal may be generated by scrambling the third signal by using a second scrambling code different from the first scrambling code, specifically, for example, the second signal
  • the third signal generation may be scrambled by using a second scrambling code orthogonal to the first scrambling code.
  • the first signal is generated by using a conjugate mode for the third signal
  • the second signal is generated by not conjugate the third signal.
  • the second signal is generated by adopting a conjugate mode for the third signal, and the first signal is generated by not conjugate the third signal.
  • the first signal may be a signal obtained by sequentially adjusting symbols and/or subcarriers of the third signal
  • the second signal may be a symbol and/or a subcarrier through the third signal.
  • a signal obtained by sequentially adjusting other order adjustment methods different from the order adjustment method used to obtain the first signal is performed.
  • the first signal may be generated by scrambling the third signal by using the first scrambling code and fusing the scrambled third signal, and the second signal may adopt a second scrambling code orthogonal to the first scrambling code. Scrambling the third signal generation.
  • the specific implementation manners of the first signal and the second signal in the embodiment of the present application are not enumerated herein.
  • the following takes the third signal as the WUS as an example, and combines the actual application to generate the first signal and the second signal, and indicates whether the system information occurs by using two different signals, the first signal or the second signal.
  • the specific implementation process of the change, or indicating whether the terminal reads the system information, is described in detail.
  • the implementation process of the other periodically transmitted signals, such as the synchronization signal, is similar, and will not be described herein.
  • the WUS is used to indicate whether the terminal detects the MPDCCH at the next paging occasion (Paging Occasion, PO).
  • the WUS can be understood as a narrowband physical signal.
  • the configured time-frequency resource location is relatively fixed, which facilitates the network device to send the WUS with higher power, and facilitates the terminal to detect the WUS by a sequence correlation method.
  • the terminal determines whether it needs to receive scheduling information for indicating Paging or MPDCCH as DII by detecting the WUS, and the detection overhead is small, and the detection accuracy rate is also high.
  • the WUS is always sent periodically, and the WUS includes the first WUS and the second.
  • the WUS where the first WUS is used to indicate that the terminal detects the MPDCCH, and the second WUS is used to indicate that the terminal does not need to detect the MPDCCH.
  • the WUS sent by the network device to the terminal may be the signal W or the signal S, and in each PO, whether the terminal needs to detect the MPDCCH in the time corresponding to the PO, the WUS is always sent; when the terminal detects the WUS as In the case of W, the MPDCCH is detected in the time corresponding to the next PO; when the terminal detects that the WUS is S, it means that the MPDCCH does not need to be detected in the time corresponding to the PO.
  • W and S are not limited in the embodiment of the present application, and only W and S can be distinguished into different signals by the terminal, for example, W and S can be orthogonal sequences.
  • W and S can be two different m sequences, two different ZC sequences, or two different sequences resulting from two different scramblings of the same sequence.
  • the network device may generate a first signal according to W, and send a first signal generated according to W to the terminal, or generate a first signal according to S and send the first signal generated according to S to the terminal.
  • the first signal generated by the W may be used to instruct the terminal to detect the MPDCCH, and the system information changes within a set time period, and the network device sends the first generated according to the W in the set duration after the system information changes.
  • a signal the terminal receiving the first signal sent by the network device within the set duration after the system information changes, determining, according to the first signal, that the MPDCCH needs to be detected and the system information changes within a set duration.
  • the first signal generated according to the W may be used to indicate that the terminal needs to detect the MPDCCH and instruct the terminal to read the system information, and the network device sends the first signal generated according to the W for a set duration after the terminal is instructed to read the system information, and the terminal receives the network.
  • the first signal sent by the device in the set duration after the device is instructed to read the system information determines that the MPDCCH needs to be detected according to the first signal and needs to read the system information.
  • the first signal generated by the S may be used to indicate that the terminal does not need to detect the MPDCCH and the system information changes within a set duration, and the network device sends the generated according to the S in the set duration after the system information changes.
  • the terminal receiving the first signal sent by the network device within the set duration after the system information changes, determining, according to the first signal, that the MPDCCH is not required to be detected and the system information changes within a set duration .
  • the first signal generated by the S may be used to indicate that the terminal does not need to detect the MPDCCH and instruct the terminal to read the system information, and the network device sends the first signal generated according to the S for a set duration after the terminal is instructed to read the system information, and the terminal receives The first signal sent by the network device in the set duration after the terminal is instructed to read the system information determines that the MPDCCH does not need to be detected according to the first signal and needs to read the system information.
  • the network device may generate a second signal according to W and send a second signal generated according to W to the terminal, or generate a second signal according to S and send the second signal generated according to S to the terminal.
  • the second signal generated by the W is used to instruct the terminal to detect the MPDCCH and the system information does not change within the set duration.
  • the network device sends the second signal after the system information changes for a set period of time.
  • the second signal sent by the receiving network device after the system information changes for a set period of time determines that the terminal needs to detect the MPDCCH according to the second signal, and the system information does not change within the set duration.
  • the second signal generated by the W is used to instruct the terminal to detect the MPDCCH and the terminal is not required to read the system information, and the network device sends the second signal after the duration of the network device is instructed to read the system information, and the terminal receives the network device.
  • the second signal generated by the S may be used to indicate that the terminal does not need to detect the MPDCCH, and the system information does not change within the set duration. After the network device changes for a set period of time, the network device sends the second signal, and the terminal sends the second signal.
  • a second signal sent by the receiving network device after the system information changes for a set period of time determining, according to the second signal, that the terminal does not need to detect the MPDCCH and the system information is in the setting There has been no change in the long term.
  • the second signal generated by the S may be used to indicate that the terminal does not need to detect the MPDCCH and the terminal does not need to read the system information.
  • the network device After the network device indicates that the terminal reads the system information for a set period of time, the network device sends the second signal, and the terminal receives the second signal. After the network device indicates that the terminal has read the system information for a set period of time, the second signal is sent, and according to the second signal, the terminal does not need to detect the MPDCCH and does not need to read the system information.
  • the first signal or the second signal is generated according to W or S, so that W or S carries information for indicating whether the system changes or carries information for indicating whether the terminal reads system information, so that the terminal When you receive W or S, you can know whether the system information has changed over a period of time, or whether you need to read system information.
  • the first signal or the second signal is generated according to W or S, and the W or S may be scrambled, conjugated, and/or sequentially adjusted.
  • the W is scrambled.
  • the first signal or the second signal is obtained as an example for description.
  • two mutually orthogonal scrambling sequences C and scrambling sequences D may be used to scramble W to obtain a first signal and a second signal.
  • the scrambling sequence C is used to scramble the W to obtain a first signal for indicating "the system information has changed in the X time.”
  • the scrambling sequence D is used to scramble the W to obtain a second signal, which is used to indicate that "the system information has not changed in the X time", as shown in FIG. .
  • the WUS in order to enhance the coverage performance of the WUS and improve the probability of being detected, the WUS may be repeatedly transmitted.
  • the repeatedly sent WUS may be ⁇ W, W, W, W. ⁇ or ⁇ S, S, S, S ⁇ .
  • corr(x, y) represents a correlation operation on the sequence x and the sequence y and is normalized
  • L is an all "1" sequence of length n.
  • the first signal obtained by scrambling W using the scrambling sequence C can be expressed as ⁇ -W, W, -W, W ⁇
  • the second signal obtained by scrambling W using the scrambling sequence D can be expressed as ⁇ W , W, W, W ⁇ .
  • the scrambling sequence C and the scrambling sequence D are orthogonal sequences, and the mutually orthogonal sequences W and S are performed by the mutually orthogonal scrambling sequence C and the scrambling sequence D.
  • the specific embodiment of the present application does not limit the specific form of C and D.
  • C and D can be two different m sequences, or two.
  • C and D can be two orthogonal ZC sequences of length 4n, and are not limited to a combination of four positive and negative ones of length n.
  • the signal sent by the network device to the terminal can be expressed as shown in Table 1 below:
  • the network device scrambles W and S, and sends W and S to the terminal, and the schematic diagram of the process of transmitting the scrambled W and S can be as shown in FIG. 5.
  • the network device sends the WUS signal (W or S) continuously during the period in which the WUS signal is sent.
  • the terminal may determine, according to the received signal, whether the terminal needs to detect. Whether the MPDCCH and the system information change, for example, the terminal uses W and S to correlate and normalize the received signal respectively, and the two obtained results are [A1A2A3A4] and [B1B2B3B4], and then can be determined according to the manner shown in Table 2 below. Whether the received signal is a W or an S signal, and determines whether the terminal needs to detect the MPDCCH and whether the system information changes.
  • the correspondence between the W or S and the MPDCCH indicated by the MPDCCH may be predefined or may be The network device is configured for the terminal through RRC signaling.
  • the duration X needs to be longer than the Paging period (if X is less than the Paging period, it is possible that the system has changed from C scrambling to using D scrambling when the terminal acquires WUS, so that the terminal cannot know the system information through the WUS. Variety). For example, considering that the cycle of Paging may reach a maximum of about 43 minutes, X can be configured for 1 hour, 3 hours, 6 hours, 12 hours, 24 hours, and the like.
  • the mutually orthogonal W and S in the embodiment of the present application are used to indicate whether the terminal detects the MPDCCH, and the two sequences W or S are scrambled by using the orthogonal sequences C and D, so that the terminal can determine whether the system information changes within the X duration or Whether the system information needs to be read, so that the first signal or the second signal is generated according to W or S, not only can the terminal know whether it is awakened, but also the change of the system information.
  • the WUS is only sent if the terminal needs to detect the MPDCCH scheduling Paging (or as DII) in the PO, and the WUS includes a signal for indicating that the terminal needs to detect. MPDCCH.
  • W ⁇ w(0), w(1), w(2), ...w(n-1) ⁇ .
  • the network device may generate the first signal or the second signal according to the WUS used to instruct the terminal to detect the MPDCCH.
  • the first signal generated by the WUS may be used to indicate that the terminal detects the MPDCCH and the system information changes within a set duration, and the network device sends the first signal within the set duration after the system information changes.
  • the first signal generated by the WUS may be used to instruct the terminal to detect the MPDCCH and instruct the terminal to read the system information, and the network device sends the first signal within a set duration after the terminal is instructed to read the system information, and the terminal receiving network device reads the indication terminal.
  • the first signal sent within the set duration after the system information is taken, according to the first signal, determining that the terminal needs to detect the MPDCCH and needs to read the system information.
  • the second signal generated by the network device according to the WUS may be used to indicate that the terminal detects the MPDCCH and the system information does not change within the set duration, and the network device sends the second signal after the system information changes for a set period of time.
  • the second signal generated by the network device according to the WUS can be used to indicate that the terminal detects the MPDCCH and the terminal does not need to read the system information, and the network device sends the second signal after the length of time after the terminal device reads the system information reaches a set duration, and the terminal receives the second signal. After the network device indicates that the terminal has read the system information for a set period of time, the second signal is sent, and according to the second signal, the terminal needs to detect the MPDCCH and does not need to read the system information.
  • two mutually orthogonal scrambling sequences C and scrambling sequences D can be used to scramble the WUS to obtain a first signal and a second signal.
  • the scrambling sequence C is used to scramble the WUS to obtain a first signal for indicating "the system information has changed in the X time.”
  • the scrambling sequence D is used to scramble the W to obtain a second signal for indicating "the system information has not changed in the X time.”
  • Table 3 Table 3 below:
  • the network device in Table 3 does not send the WUS. It is possible that the network device does not send any signal on the time-frequency resource, or the network device sends a non-WUS signal, such as sending a data signal. If W has better autocorrelation and cross-correlation properties, the terminal will not mistakenly detect non-W data signals as W when performing correlation detection.
  • the network device scrambles the WUS, and sends a WUS to the terminal, and the process diagram of sending the scrambled WUS may be as shown in FIG. 6.
  • the network device in the embodiment of the present application sends a WUS signal when the terminal needs to detect the MPDCCH, and does not send the WUS signal when the terminal does not need to detect the MPDCCH.
  • the terminal may determine, according to the received signal, whether the terminal needs to detect the MPDCCH and whether the system information changes. For example, the terminal uses the W to correlate and normalize the received signal, and the two obtained results are [ A1A2A3A4], then according to the manner shown in Table 4 below, it can be determined whether the received signal is a WUS signal, and it is determined whether the terminal needs to detect the MPDCCH and whether the system information changes.
  • the terminal can determine whether it is necessary to detect the MPDCCH corresponding to the WUS according to whether the WUS is received.
  • the terminal can determine whether the system information changes within X hours according to the detection result. If the terminal does not detect the WUS, it can determine that it does not need to detect the WUS, and is not awake. It can re-enter the Idle state (sleep state), and can assume that the system information changes or not, and needs to reacquire system information, such as a hypothesis. The system information has not changed, and it is not necessary to reacquire the system information; or it is determined according to other conditions whether the system information needs to be reacquired.
  • the WUS is scrambled by using C or D, so that the WUS carries information for indicating whether the system information changes or carries information indicating whether the terminal reads the system information, so that the terminal receives the WUS. It is determined that the MPDCCH needs to be detected, and whether the system information changes over a period of time or whether the system information needs to be read is known.
  • the solution provided by the embodiment of the present application is mainly introduced from the perspective of interaction between the network device and the terminal.
  • the network device and the terminal include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions.
  • the embodiments of the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements of the examples and algorithm steps described in the embodiments disclosed in the application. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the technical solutions of the embodiments of the present application.
  • each functional unit may be divided according to each function, or two or more functions may be integrated into one processing order. Yuanzhong.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • FIG. 7 is a schematic structural diagram of a signal transmitting apparatus 100 provided by an embodiment of the present application, and the signal sending apparatus 100 is applicable to a network device.
  • the signal transmitting apparatus 100 includes a processing unit 101 and a transmitting unit 102.
  • the processing unit 101 is configured to determine a first signal and a second signal, where the first signal and the second signal are different, and the first signal is used to indicate that system information is set A change occurs within the timing length, and the second signal is used to indicate that the system information has not changed within the set duration.
  • the sending unit 102 is configured to send the first signal determined by the processing unit 101 within the set duration after the system information changes, and the duration after the system information changes reaches the set duration The second signal determined by the processing unit 101 is then transmitted.
  • the processing unit 101 is configured to determine a first signal and a second signal, where the first signal and the second signal are different, and the first signal is used to indicate that the terminal reads System information, the second signal is used to indicate that the terminal does not need to read system information.
  • the sending unit 102 is configured to send the first signal determined by the processing unit 101 within a set duration after the terminal is instructed to read the system information, and send the length of time after the terminal is instructed to read the system information to reach the set duration. The second sub-signal determined by the processing unit 101.
  • the system information is a main information block MIB information; or the system information is MIB information and/or system information block SIB1 information; or the system information is SIB information other than SIB10, SIB11, SIB12, SIB14; Or the system information is one or more of SIB information, MIB information, and SIB1 information other than SIB1, SIB10, SIB11, SIB12, and SIB14.
  • the processing unit 101 may generate the first signal according to a third signal, and generate the second signal according to the third signal that generates the first signal.
  • the processing unit 101 adopts at least one of a method of scrambling the third signal, taking a conjugate of the third signal, and sequentially adjusting symbols and/or subcarriers of the third signal.
  • the method generates the first signal and the second signal, respectively.
  • the scrambling mode used to generate the first signal is different from the scrambling mode used to generate the second signal; or the first signal is generated by using a conjugate mode for the third signal.
  • the second signal is generated by not conjugated to the third signal; or the second signal is generated by conjugated to the third signal, and the first signal is not used for the third signal.
  • the conjugate mode is generated; or the sequence adjustment manner adopted by the first signal is different from the sequence adjustment manner used to generate the second signal.
  • the third signal is a synchronization signal or a wake-up signal WUS.
  • the WUS includes a first WUS for instructing the terminal to detect a physical downlink control channel MPDCCH of the machine type communication, and a second WUS for indicating that the terminal does not need to detect the MPDCCH.
  • the sending unit 102 may send the first signal generated according to the first WUS in the set duration after the system information is changed, where the first signal generated according to the first WUS is used to instruct the terminal to detect the MPDCCH and The system information has changed within the set length of time.
  • the sending unit 102 may send the first signal generated according to the second WUS within the set duration after the system information changes, and the first signal generated according to the second WUS is used to indicate that the terminal does not The MPDCCH needs to be detected and the system information changes within the set duration.
  • the sending unit 102 may also send a second signal generated according to the first WUS after the duration of the change of the system information reaches the set duration, and the second signal generated according to the first WUS is used to indicate the terminal.
  • the MPDCCH is detected and the system information does not change within the set duration.
  • the sending unit 102 can also be in the system Sending a second signal generated according to the second WUS after the duration of the change of the system information reaches the set duration, the second signal generated according to the second WUS is used to indicate that the terminal does not need to detect the MPDCCH and the system information is in the There is no change within the set length.
  • the sending unit 102 may send the first signal generated according to the first WUS within a set duration after the terminal is instructed to read the system information, where the first signal generated according to the first WUS is used to instruct the terminal to detect the MPDCCH and indicate the terminal. Read system information. Or, the sending unit 102 sends a first signal generated according to the second WUS within a set duration after the terminal is instructed to read the system information, where the first signal generated according to the second WUS is used to indicate that the terminal does not need to detect the MPDCCH. And instruct the terminal to read system information.
  • the sending unit 102 sends a second signal generated according to the first WUS after the duration of the instructing the terminal to read the system information reaches the set duration, and the second signal generated according to the first WUS is used to instruct the terminal to detect the MPDCCH. And indicating that the terminal does not need to read system information. Or, the sending unit 102 sends a second signal generated according to the second WUS after the duration of the instructing the terminal to read the system information reaches the set duration, and the second signal generated according to the second WUS is used to indicate the terminal. There is no need to detect the MPDCCH and the terminal is not required to read system information.
  • the WUS is a WUS for instructing the terminal to detect a physical downlink control channel MPDCCH of machine type communication.
  • the sending unit 102 sends a first signal generated according to the WUS in the set duration after the system information changes, and the first signal generated according to the WUS is used to instruct the terminal to detect the MPDCCH and the system information is There has been a change in the set length.
  • the sending unit 102 sends a second signal generated according to the WUS after the duration of the change of the system information reaches the set duration, and the second signal generated according to the WUS is used to instruct the terminal to detect the MPDCCH. And the system information does not change within the set duration.
  • the sending unit 102 sends a first signal generated according to the WUS within a set duration after the terminal is instructed to read the system information, and the first signal generated according to the WUS is used to instruct the terminal to detect the MPDCCH and instruct the terminal to read Take system information.
  • the sending unit 102 sends a second signal generated according to the WUS after the duration of the instructing the terminal to read the system information reaches the set duration, and the second signal generated according to the WUS is used to instruct the terminal to detect the MPDCCH and Indicates that the terminal does not need to read system information.
  • FIG. 8 is a schematic structural diagram of a signal receiving apparatus 200 provided by an embodiment of the present application, and the signal receiving apparatus 200 is applicable to a terminal.
  • the signal receiving apparatus 200 applied to the terminal includes a receiving unit 201 and a processing unit 202.
  • the receiving unit 201 is configured to receive a first signal sent by the network device within the set duration after the system information changes, where the first signal is used to indicate that the system information is
  • the processing unit 202 is configured to determine that the system information has changed within the set duration according to the first signal received by the receiving unit 201. Wherein the first signal and the second signal are different.
  • the receiving unit 201 is configured to receive a second signal that is sent by the network device after the system information changes for a set duration, and the second signal is used to indicate that the system information is in the
  • the processing unit 202 is configured to determine that the system information does not change within the set duration according to the second signal received by the receiving unit 201. Wherein the first signal and the second signal are different.
  • the receiving unit 201 is configured to receive, by the network device, the terminal reading system. a first signal sent within a set time period after the information, the first signal is used to instruct the terminal to read the system information, and the processing unit 202 is configured to determine, according to the first signal received by the receiving unit 201, the system to be read. information. Wherein the first signal and the second signal are different.
  • the receiving unit 201 is configured to receive a second signal that is sent by the network device after the terminal device indicates that the system information is read for a set duration, and the second signal is used to indicate that the terminal does not The system information needs to be read, and the processing unit 202 is configured to determine that the system information does not need to be read according to the second signal received by the receiving unit 201. Wherein the first signal and the second signal are different.
  • the first signal is generated according to the third signal
  • the second signal is generated according to the third signal that generates the first signal
  • the first signal and the second signal respectively use scrambling the third signal; conjugate the third signal; and sequentially adjust symbols and/or carriers of the third signal Generated in at least one of the ways.
  • the scrambling mode used to generate the first signal is different from the scrambling mode used to generate the second signal; or the first signal is generated by using a conjugate mode for the third signal.
  • the second signal is generated by not conjugated to the third signal; or the second signal is generated by conjugated to the third signal, and the first signal is not used for the third signal.
  • the conjugate mode is generated; or the sequence adjustment manner adopted by the first signal is different from the sequence adjustment manner used to generate the second signal.
  • the third signal is a synchronization signal or a wake-up signal WUS.
  • the WUS includes a first WUS for indicating that the terminal detects a physical downlink control channel MPDCCH of the device type communication, and a second WUS for indicating that the terminal does not need to detect the MPDCCH.
  • the processing unit 202 is further configured to: after receiving, by the receiving unit 201, the first signal sent by the network device in the set duration after the system information changes, determining, according to the first signal, that the MPDCCH needs to be detected, The first signal is generated according to the first WUS, and is used to instruct the terminal to detect the MPDCCH and the system information changes within a set duration.
  • the receiving unit 201 receives the first signal sent by the network device in the set duration after the system information changes, determining, according to the first signal, that the MPDCCH is not required to be detected, where the first signal is according to the The second WUS is generated and used to indicate that the terminal does not need to detect the MPDCCH and the system information changes within a set duration.
  • the receiving unit 201 receives the second signal sent by the network device after the system information changes to the set duration, determining, according to the second signal, that the MPDCCH needs to be detected, where the second signal is according to the A WUS is generated and used to instruct the terminal to detect the MPDCCH and the system information does not change within the set duration.
  • the receiving unit 201 receives the second signal sent by the network device after the system information changes to the set duration, determining, according to the second signal, that the MPDCCH is not required to be detected, the second signal is according to the The second WUS is generated and used to indicate that the terminal does not need to detect the MPDCCH and the system information does not change within the set duration.
  • the receiving unit 201 receives the first signal that is sent by the network device in the set duration after the system is instructed to read the system information, determining, according to the first signal, that the MPDCCH needs to be detected, where the first signal is according to the first WUS And generated to indicate that the terminal detects the MPDCCH and instructs the terminal to read system information.
  • the receiving unit 201 receives the first signal that is sent by the network device in the set duration after the system is instructed to read the system information, determining, according to the first signal, that the MPDCCH is not required to be detected, where the first signal is according to the first
  • the second WUS is generated and used to indicate that the terminal does not need to detect the MPDCCH and instruct the terminal to read system information.
  • the second signal that is sent after the network device indicates that the terminal has read the system information for a set period of time, determining, according to the second signal, that the MPDCCH needs to be detected, where the second signal is according to the A WUS is generated and used to instruct the terminal to detect the MPDCCH and instruct the terminal not to read the system information.
  • the receiving unit 201 receives the network device at the end of the indication After the second signal sent after the system information is read for a set period of time, it is determined that the MPDCCH is not required to be detected according to the second signal, and the second signal is generated according to the second WUS, and is used to indicate that the terminal does not The MPDCCH needs to be detected and the terminal is instructed not to read system information.
  • the WUS is a WUS of the physical downlink control channel MPDCCH for instructing the terminal to detect the device type communication.
  • the processing unit 202 is further configured to: after receiving, by the receiving unit 201, the first signal sent by the network device in the set duration after the system information changes, determining, according to the first signal, that the MPDCCH needs to be detected, where The first signal is generated according to the WUS, and is used to instruct the terminal to detect the MPDCCH and the system information changes within a set time period.
  • the receiving unit 201 receives the second signal that is sent after the network device changes the system information for a set period of time, it is determined that the MPDCCH needs to be detected according to the second signal, and the second signal is generated according to the WUS.
  • the terminal detects the MPDCCH and the system information does not change within the set duration.
  • the receiving unit 201 After receiving, by the receiving unit 201, the first signal that is sent by the network device in the set duration after the terminal is configured to read the system information, determining, according to the first signal, that the MPDCCH needs to be detected, where the first signal is generated according to the WUS And indicating that the terminal detects the MPDCCH and instructs the terminal to read system information.
  • the second signal that is sent after the network device indicates that the terminal has read the system information for a set period of time, determining, according to the second signal, that the MPDCCH needs to be detected, where the second signal is The WUS is generated and used to instruct the terminal to detect the MPDCCH and instruct the terminal not to read the system information.
  • the system information involved may be the following: the system information is the main information block MIB information; or the system information is the MIB information and/or the system information block SIB1 information; or the system information is SIB information other than SIB10, SIB11, SIB12, and SIB14; or the system information is one or more of SIB information, MIB information, and SIB1 information other than SIB1, SIB10, SIB11, SIB12, and SIB14.
  • each unit of the signal transmitting apparatus 100 applied to the network device and the signal receiving apparatus 200 applied to the terminal is only a division of a logical function, and may be integrated into one physical entity in whole or in part during actual implementation. It can also be physically separated.
  • these units may all be implemented in the form of software by means of processing component calls; or may be implemented entirely in hardware; some units may be implemented in software in the form of processing component calls, and some units may be implemented in hardware.
  • the processing unit may be a separately set processing element, or may be integrated in a chip of a network device or a terminal, or may be stored in a memory of a network device or a terminal in the form of a program, by a network device or a terminal.
  • One of the processing elements calls and executes the function of the unit.
  • the implementation of other units is similar.
  • all or part of these units can be integrated or implemented independently.
  • the processing elements described herein can be an integrated circuit that has signal processing capabilities.
  • each step of the above method or each of the above units may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software.
  • the above receiving unit is a unit for controlling reception, and the information transmitted by the network device can be received by the receiving device of the terminal, such as an antenna and a radio frequency device.
  • the above sending unit is a unit for controlling transmission, and can send information to the terminal through a transmitting device of the network device, such as an antenna and a radio frequency device.
  • the above units may be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (digital) Singnal processor (DSP), or one or more Field Programmable Gate Array (FPGA).
  • ASICs Application Specific Integrated Circuits
  • DSP digital Singnal processor
  • FPGA Field Programmable Gate Array
  • the processing element dispatcher When implemented in a form, the processing element can be a general purpose processor, such as a central processing unit (CPU) or other processor that can invoke the program.
  • CPU central processing unit
  • these units can be integrated and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • FIG. 9 is a schematic structural diagram of a network device according to an embodiment of the present application. It can be the network device in the above embodiment, and is used to implement the operation of the network device in the above embodiment.
  • the network device includes an antenna 110, a radio frequency device 120, and a baseband device 130.
  • the antenna 110 is connected to the radio frequency device 120.
  • the radio frequency device 120 receives the information transmitted by the terminal through the antenna 110, and transmits the information sent by the terminal to the baseband device 130 for processing.
  • the baseband device 130 processes the information of the terminal and sends it to the radio frequency device 120.
  • the radio frequency device 120 processes the information of the terminal and sends the information to the terminal through the antenna 110.
  • the baseband device 130 may be a physical device or may include at least two devices that are physically separated, for example, including a CU and at least one DU.
  • the DU can be integrated with the radio frequency device 120 in one device or physically separated.
  • the baseband device 130 is configured to perform RRC, Packet Data Convergence Protocol (PDCP), and wireless chain.
  • the processing of protocol layers such as the Radio Link Control (RLC) layer, the MAC (Media Access Control), and the physical layer can be divided between any two protocol layers, so that the baseband devices include physically separated Two devices are used to perform the processing of the respective protocol layers.
  • RLC Radio Link Control
  • MAC Media Access Control
  • RRC Radio Resource Control
  • PDCP Packet Control Protocol
  • RLC Radio Link Control
  • it may also be divided within the protocol layer, for example, a protocol layer part and a protocol layer above the protocol layer are divided into one device, and the remaining part of the protocol layer and the protocol layer below the protocol layer are divided into another device.
  • the above signal transmitting device 100 applied to the network device may be located on one of the physically separate at least two devices of the baseband device 130.
  • the network device can include a plurality of baseband boards on which a plurality of processing elements can be integrated to achieve the desired functionality.
  • the baseband device 130 may include at least one baseband board.
  • the above signal transmitting device 100 applied to the network device may be located in the baseband device 130.
  • the various units shown in FIG. 7 are implemented in the form of a processing component scheduling program, such as a baseband.
  • the device 130 includes a processing element 131 and a storage element 132 that invokes a program stored by the storage element 132 to perform the method performed by the network device in the above method embodiments.
  • the baseband device 130 may further include an interface 133 for interacting with the radio frequency device 120, such as a common public radio interface (CPRI), when the baseband device 130 and the radio frequency device 120 are physically disposed.
  • the interface can be an in-board interface, or an inter-board interface, where the board refers to the board.
  • the various units shown in FIG. 7 may be one or more processing elements configured to implement the methods performed by the network device above, the processing elements being disposed on the baseband device 130, where the processing elements may be An integrated circuit, such as one or more ASICs, or one or more DSPs, or one or more FPGAs, and the like. These integrated circuits can be integrated to form a chip.
  • the various units shown in FIG. 7 can be integrated together in the form of a system-on-a-chip (SOC), for example, the baseband device 130 includes a SOC chip for implementing the above method.
  • the processing element 111 and the storage element 132 may be integrated within the chip, and the method performed by the above network device or the functions of the various units shown in FIG. 7 may be implemented by the processing element 131 in the form of a stored program that calls the storage element 132.
  • at least one integrated circuit may be integrated in the chip for implementing the method performed by the above network device or the functions of the respective units shown in FIG.
  • the functions of the partial units are implemented by the processing component calling program, and the functions of the partial units are implemented by the form of an integrated circuit.
  • the above signal transmitting apparatus 100 applied to the network device includes at least one place And a storage element, wherein at least one of the processing elements is configured to perform the method performed by the network device provided by the above method embodiments.
  • the processing element may perform some or all of the steps performed by the network device in the above method embodiment in a manner of executing the program stored in the storage element in a first manner; or in a second manner: through hardware in the processor element
  • the integrated logic circuit performs some or all of the steps performed by the network device in the foregoing method embodiment in combination with the instructions; of course, some or all of the steps performed by the network device in the foregoing method embodiment may be performed in combination with the first mode and the second mode. .
  • the processing elements herein are the same as described above, and may be a general purpose processor, such as a Central Processing Unit (CPU), or may be one or more integrated circuits configured to implement the above method, for example: one or more specific An Application Specific Integrated Circuit (ASIC), or one or more digital singnal processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs).
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • DSPs digital singnal processors
  • FPGAs Field Programmable Gate Arrays
  • the storage element can be a memory or a collective name for a plurality of storage elements.
  • FIG. 10 is a schematic structural diagram of a terminal according to an embodiment of the present application. It can be the terminal in the above embodiment, and is used to implement the operation of the terminal in the above embodiment.
  • the terminal includes an antenna 210, a radio frequency device 220, and a baseband device 230.
  • the antenna 210 is connected to the radio frequency device 220.
  • the radio frequency device 220 receives the information transmitted by the network device through the antenna 210, and transmits the information sent by the network device to the baseband device 230 for processing.
  • the baseband device 230 processes the information of the terminal and sends the information to the radio frequency device 220.
  • the radio frequency device 220 processes the information of the terminal and sends the information to the network device via the antenna 210.
  • the baseband device can include a modem subsystem for effecting processing of the various communication protocol layers of the data.
  • a central processing subsystem may also be included for implementing processing of the terminal operating system and the application layer.
  • other subsystems such as a multimedia subsystem, a peripheral subsystem, etc., may be included, wherein the multimedia subsystem is used to implement control of the terminal camera, screen display, etc., and the peripheral subsystem is used to implement connection with other devices.
  • the modem subsystem may be a separately provided chip.
  • the signal receiving device 200 applied to the terminal may be implemented on the modem subsystem.
  • the various units shown in FIG. 8 are implemented in the form of a processing element scheduler, such as a subsystem of baseband apparatus 230, such as a modem subsystem, including processing element 231 and storage element 232, processing element 231
  • the program stored by the storage element 232 is called to perform the method performed by the terminal in the above method embodiment.
  • the baseband device 230 can also include an interface 233 for interacting with the radio frequency device 220.
  • the various units shown in FIG. 8 may be one or more processing elements configured to implement the methods performed by the above terminals, the processing elements being disposed on a subsystem of the baseband device 230, such as a modulation solution.
  • the processing elements herein may be integrated circuits, such as one or more ASICs, or one or more DSPs, or one or more FPGAs, and the like. These integrated circuits can be integrated to form a chip.
  • the various units shown in FIG. 8 can be integrated together in the form of a system-on-a-chip (SOC), for example, the baseband device 230 includes a SOC chip for implementing the above method.
  • the processing element 231 and the storage element 232 may be integrated in the chip, and the method executed by the above terminal or the function of each unit shown in FIG. 8 may be implemented by the processing element 231 calling the stored program of the storage element 232; or, the chip may be integrated
  • At least one integrated circuit is used to implement the method performed by the above terminal or the functions of each unit shown in FIG. 8; or, in combination with the above implementation manner, the functions of some units are implemented by the processing component calling program, and the functions of some units are integrated.
  • the form of the circuit is implemented.
  • the above signal receiving apparatus 200 for a terminal applied to a terminal includes at least A processing element and a storage element, wherein at least one processing element is used to perform the method of terminal execution provided by the above method embodiments.
  • the processing element may perform some or all of the steps performed by the terminal in the above method embodiment in a manner of executing the program stored in the storage element in a first manner; or in a second manner: through integration of hardware in the processor element
  • the logic circuit performs some or all of the steps performed by the terminal in the foregoing method embodiment in combination with the instruction; of course, some or all of the steps performed by the terminal in the foregoing method embodiment may be performed in combination with the first mode and the second mode.
  • the processing elements herein are the same as described above, and may be a general purpose processor, such as a Central Processing Unit (CPU), or may be one or more integrated circuits configured to implement the above method, for example: one or more specific An Application Specific Integrated Circuit (ASIC), or one or more digital singnal processors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs).
  • CPU Central Processing Unit
  • ASIC Application Specific Integrated Circuit
  • DSPs digital singnal processors
  • FPGAs Field Programmable Gate Arrays
  • the storage element can be a memory or a collective name for a plurality of storage elements.
  • the embodiment of the present application further provides a communication system, including the foregoing network device and one or more terminals.
  • the present application provides a chip that is connected to a memory for reading and executing a software program stored in the memory to implement functions performed by the network device or terminal involved in the above embodiments.
  • the present application provides a computer storage medium storing computer instructions, and when the instructions are executed on a computer, the signal transmitting method or the signal receiving method according to the above embodiments may be completed.
  • the present application provides a computer program product, which includes a computer program for performing a signal transmission method or a signal reception method according to the above embodiments.
  • embodiments of the present application can be provided as a method, system, or computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, embodiments of the present application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Abstract

一种信号发送、接收方法及装置。该方法应用于网络设备时，网络设备可在系统信息发生变化后的设定时长内向终端发送用于指示系统信息在设定时长内发生了变化的第一信号或在指示终端读取系统信息后的设定时长内发送指示终端读取系统信息的第一信号，提高终端及时获取到变化的系统信息的几率。网络设备在所述系统信息发生变化后的时长达到所述设定时长后发送所述第二信号或在指示终端读取系统信息的时长达到所述设定时长后发送用于指示不需要读取系统信息的第二信号，以使终端及时确定系统信息未发生变化。

Description

一种信号发送、接收方法及装置 技术领域
本申请涉及通信技术领域，尤其涉及一种信号发送、接收方法及装置。
背景技术
随着通信技术的发展，长期演进(long term evolution，LTE)系统及长期演进的演进(long term evolution advanced，LTE-A)系统可支持机器类型通信(machine type communication，MTC)业务。MTC业务是指通过部署具有一定感知、计算、执行和通信能力的各种设备，获取物理世界的信息，通过网络实现信息传输、协同和处理，从而实现人与物、物与物的互联。
支持MTC业务的LTE系统或LTE-A系统中，可实现终端(例如用户设备(User Equipment，UE))与网络设备(例如基站(base station，BS或enhanced Node B，eNB))之间的无线通信。终端与网络设备之间进行无线通信，需要在初始接入网络时获取系统信息(system information，SI)。图1所示为支持MTC业务的LTE系统或LTE-A系统中，终端初始接入网络获取系统信息的流程示意图：终端获取同步信号(主同步信号(primary synchronization signal，PSS)/辅同步信号(secondary synchronization signal，SSS))，然后获取承载于物理广播信道(physical broadcast channel，PBCH)发送的主信息块(master information block，MIB)以及用于终端获取系统信息的多个系统信息块(System Information Block，SIB)。其中，多个SIB可记为SIB1、SIB2、……SIB21等。由于支持MTC业务的终端带宽较窄，通常小于系统带宽，支持MTC业务的终端通过检测机器类型通信的物理下行控制信道(MTC physical downlink control channel，MPDCCH)来获知控制信息，故支持MTC业务的LTE系统或LTE-A系统中，可传输带宽压缩的SIB1(Bandwidth-Reduced SIB1，SIB1-BR)，SIB1-BR中包含SIB2、……SIB21等其它SIB的调度信息，但传输带宽仅为1个窄带(Narrowband，NB)的带宽，使得支持MTC业务的终端可以通过接收SIB1-BR获得其它SIB的调度信息。SIB1-BR的调度信息(SchedulingInfoSIB1-BR)承载于MIB中，支持MTC业务的终端通过读取MIB中的schedulingInfoSIB1-BR，获取SIB1-BR的调度信息(SIB1-BR是否存在，SIB1-BR在哪些时频资源上传输以及传输块的大小等)。
支持MTC业务的LTE系统或LTE-A系统中，终端可根据SIB1-BR中的systemInfoValueTag的取值，或者寻呼消息(Paging)或直接指示信息(direct indication information，DII)中用于指示系统信息是否会在下一个系统信息变化周期发生变化的systemInfoModification或systemInfoModification-eDRX，确定系统信息是否发生变化，在确定系统信息发生变化时，重新获取系统信息。
然而，终端采用上述方式获取系统信息时，经常会出现不能及时获取改变的系统信息,或者在系统信息未发生改变的情况下无法可靠获知系统信息未发生变化，即目前的系统信息指示方法时效性较低。
发明内容
本申请实施例提供一种信号发送、接收方法及装置，使得终端可以及时确定系统信息 是否发生变化。
第一方面，提供一种信号发送方法，在该信号发送方法中，网络设备确定第一信号和第二信号，并向终端发送第一信号或第二信号，其中，第一信号和第二信号为不同的信号。
一种可能的实施方式中，第一信号用于指示系统信息在设定时长内发生了变化，第二信号用于指示系统信息在所述设定时长内未发生变化。网络设备可通过在系统信息发生变化后的设定时长内向终端发送第一信号，以指示系统信息在设定时长内发生变化。在所述系统信息发生变化后的时长达到所述设定时长后向终端发送第二信号，以指示系统信息在该设定时长内未发生变化。
另一种可能的实施方式中，第一信号用于指示终端读取系统信息，第二信号指示终端不需要读取系统信息。网络设备在指示终端读取系统信息后的设定时长内发送第一信号，以指示终端读取系统信息。在指示终端读取系统信息后的时长达到所述设定时长后发送第二信号，以指示终端不需要读取系统信息。
第二方面，提供一种信号接收方法，在该方法中，终端接收网络设备发送的第一信号，依据该第一信号确定系统信息在设定时长内发生了变化或者确定需要读取系统信息。或者终端接收网络设备发送的第二信号，依据该第二信号确定系统信息在所述设定时长内未发生变化或者确定不需要读取系统信息。
其中，终端接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号，所述第一信号用于指示系统信息在设定时长内发生了变化，终端依据所述第一信号确定系统信息在设定时长内发生了变化。
终端接收网络设备在系统信息发生变化后的时长达到所述设定时长后发送的第二信号，第二信号用于指示系统信息在所述设定时长内未发生变化，终端依据所述第二信号确定系统信息在所述设定时长内未发生变化。
终端接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号，第一信号用于指示终端读取系统信息，终端依据该第一信号确定需要读取系统信息。
终端接收网络设备在指示终端读取系统信息后的时长达到所述设定时长后发送的第二信号，第二信号用于指示终端不需要读取系统信息，终端依据该第二信号确定不需要读取系统信息。
第三方面，本申请提供一种信号发送装置，应用于网络设备，该信号发送装置包括用于执行以上第一方面中涉及的网络设备执行各个步骤的单元或手段(means)。
第四方面，本申请提供一种信号接收装置，应用于终端，该信号接收装置包括用于执行以上第二方面中涉及的终端执行各个步骤的单元或手段(means)。
第五方面，本申请提供一种网络设备，包括至少一个处理元件和至少一个存储元件，其中所述至少一个存储元件用于存储程序和数据，所述至少一个处理元件用于执行本申请第一方面中提供的方法。
第六方面，本申请提供一种终端，包括至少一个处理元件和至少一个存储元件，其中所述至少一个存储元件用于存储程序和数据，所述至少一个处理元件用于执行本申请第二方面中提供的方法。
第七方面，本申请提供一种芯片，所述芯片与存储器相连，用于读取并执行所述存储器中存储的软件程序，以实现上述第一方面涉及的网络设备所执行的功能。
第八方面，本申请提供一种芯片，所述芯片与存储器相连，用于读取并执行所述存储器中存储的软件程序，以实现上述第二方面涉及的终端所执行的功能。
第九方面，提供一种计算机存储介质，所述计算机可读存储介质存储有计算机指令，当所述指令在计算机上运行时，可以完成第一方面或第二方面所涉及的任意一种方法。
第十方面，提供一种计算机程序产品，所述计算机程序产品中包括有计算机程序，该计算机程序用于执行完成第一方面或第二方面所涉及的任意一种方法。
可见，在以上各个方面，网络设备向终端发送用于指示系统信息是否发生变化或者用于指示终端是否需要读取系统信息的信号。终端接收网络设备发送的用于指示系统信息是否发生变化或者用于指示终端是否需要读取系统信息的信号，并确定系统信息是否发生变化或者是否需要读取系统信息。通过本申请实施例提供的信号发送方法以及信号接收方法，可以使终端及时确定系统信息是否发生变化，进而确定是否需要重新获取系统信息。
在以上各方面中，一种可能的设计中，第一信号和第二信号可通过对同一信号进行处理生成，例如第一信号可以根据第三信号生成，第二信号根据生成第一信号的第三信号生成。
具体的，第一信号和所述第二信号分别采用加扰所述第三信号、对第三信号取共轭以及对所述第三信号的符号和/或子载波进行顺序调整中的至少一种方式生成。一种可能的实施方式中，第一信号通过使用第一扰码加扰第三信号生成，第二信号可通过使用与第一扰码正交的第二扰码加扰第三信号生成。另一种可能的实施方式中，第一信号采用对所述第三信号取共轭方式生成，第二信号采用对所述第三信号不取共轭方式生成。或者第二信号采用对第三信号取共轭方式生成，第一信号采用对所述第三信号不取共轭方式生成。又一种可能的实施方式中，第一信号可以是通过对第三信号的符号和/或子载波进行顺序调整得到的信号，第二信号可以是通过对第三信号的符号和/或子载波进行不同于得到第一信号所采用的顺序调整方式的其它顺序调整方式进行顺序调整得到的信号。又一种可能的实施方式中，第一信号可以通过采用第一扰码加扰第三信号并对加扰后的第三信号取共轭生成，第二信号可以通过采用与第一扰码正交的第二扰码加扰第三信号生成。
其中，第三信号是周期性发送的并可以是通过自相关或者互相关的方法进行检测的信号，例如该第三信号可以是WUS，也可以是同步信号。
一种可能的实施方式中，WUS包括用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的第一WUS，以及用于指示终端不需要检测MPDCCH的第二WUS。
具体的，网络设备在所述系统信息发生变化后的所述设定时长内发送根据第一WUS生成的第一信号，所述根据第一WUS生成的第一信号用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化。终端接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号，根据所述第一信号确定需要检测MPDCCH且系统信息在设定时长内发生了变化。或者，
网络设备在所述系统信息发生变化后的所述设定时长内发送根据第二WUS生成的第一信号，所述根据第二WUS生成的第一信号用于指示终端不需要检测MPDCCH且系统信息在设定时长内发生了变化。终端接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号，根据所述第一信号确定不需要检测MPDCCH且系统信息在设定时长内发生了变化。或者，
网络设备在所述系统信息发生变化后的时长达到所述设定时长后发送根据第一WUS 生成的第二信号，所述根据第一WUS生成的第二信号用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化。终端接收网络设备在系统信息发生变化后的时长达到所述设定时长后发送的第二信号，根据所述第二信号确定需要检测MPDCCH，且系统信息在所述设定时长内未发生变化。或者，
所述网络设备在所述系统信息发生变化后的时长达到所述设定时长后发送根据第二WUS生成的第二信号，所述根据第二WUS生成的第二信号用于指示终端不需要检测MPDCCH且系统信息在所述设定时长内未发生变化。终端接收网络设备在系统信息发生变化后的时长达到所述设定时长后发送的第二信号，根据所述第二信号确定不需要检测MPDCCH，且系统信息在所述设定时长内未发生变化。或者，
网络设备在指示终端读取系统信息后的设定时长内发送根据第一WUS生成的第一信号，所述根据第一WUS生成的第一信号用于指示终端检测MPDCCH且指示终端读取系统信息。终端接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号，根据所述第一信号确定需要检测MPDCCH且需要读取系统信息。或者，
网络设备在指示终端读取系统信息后的设定时长内发送根据第二WUS生成的第一信号，所述根据第二WUS生成的第一信号用于指示终端不需要检测MPDCCH且指示终端读取系统信息。终端接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号，根据所述第一信号确定不需要检测MPDCCH且需要读取系统信息。或者，
网络设备在指示终端读取系统信息后的时长达到所述设定时长后发送根据第一WUS生成的第二信号，所述根据第一WUS生成的第二信号用于指示终端检测MPDCCH且指示终端不需要读取系统信息。终端接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号，根据所述第二信号确定需要检测MPDCCH且不需要读取系统信息。或者，
网络设备在指示终端读取系统信息后的时长达到所述设定时长后发送根据第二WUS生成的第二信号，所述根据第二WUS生成的第二信号用于指示终端不需要检测MPDCCH且指示终端不需要读取系统信息。终端接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号，根据所述第二信号确定不需要检测MPDCCH且不需要读取系统信息。
本申请实施例中，网络设备根据第一WUS或第二WUS生成第一信号或第二信号，终端接收到第一信号或第二信号后，不仅可以使终端获知是否被唤醒，还能获知系统信息的变化情况。
另一种可能的实施方式中，WUS为用于指示终端检测MPDCCH的WUS。
具体的，所述网络设备在所述系统信息发生变化后的所述设定时长内发送根据所述WUS生成的第一信号，根据所述WUS生成的第一信号用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化。终端接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号之后，根据所述第一信号确定需要检测MPDCCH且系统信息在设定时长内发生了变化。或者，
网络设备在所述系统信息发生变化后的时长达到所述设定时长后发送根据所述WUS生成的第二信号，根据所述WUS生成的第二信号用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化。终端接收网络设备在系统信息发生变化后的时长达到设定时长后发送的第二信号，根据所述第二信号确定需要检测MPDCCH且系统信息在所述设 定时长内未发生变化。或者，
网络设备在指示终端读取系统信息后的设定时长内发送根据所述WUS生成的第一信号，根据所述WUS生成的第一信号用于指示终端检测MPDCCH且指示终端读取系统信息。终端接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号，根据所述第一信号确定需要检测MPDCCH且需要读取系统信息。或者
网络设备在指示终端读取系统信息后的时长达到所述设定时长后发送根据所述WUS生成的第二信号，根据所述WUS生成的第二信号用于指示终端检测MPDCCH且指示终端不需要读取系统信息。终端接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号，根据所述第二信号确定需要检测MPDCCH且不需要读取系统信息。
本申请实施例中，WUS携带用于指示系统信息是否发生变化的信息或携带用于指示终端是否读取系统信息的信息，使得终端接收到WUS时，确定需要检测MPDCCH，并能获知系统信息在一段时间内是否发生了变化，或者获知是否需要读取系统信息。
在以上各方面中，又一种可能的设计中，系统信息可以是MIB，系统信息发生变化可以是指MIB的内容发生变化。或系统信息可以是MIB和/或SIB1，系统信息发生变化可以是指MIB和/或SIB1的内容发生变化。系统信息也可以是除SIB10、SIB11、SIB12、SIB14以外的其它SIB信息，系统信息发生变化可以是指除SIB10、SIB11、SIB12、SIB14以外的其它SIB的内容的变化。或系统信息可以为除SIB1、SIB10、SIB11、SIB12、SIB14以外的其它SIB信息、MIB信息、SIB1信息中的一种或多种，系统信息发生变化可以是指除SIB1、SIB10、SIB11、SIB12、SIB14以外的其它SIB信息、MIB信息、SIB1信息中的一种或多种的内容发生变化。
本申请实施例提供的信号发送、接收方法及装置，网络设备通过向终端发送第一信号或第二信号这两种不同的信号，使得终端能够及时确定系统信息是否发生变化或者确定是否需要读取系统信息，提高了网络设备指示系统信息的时效性。
附图说明
图1为终端初始接入网络获取系统信息的流程示意图；
图2为本申请实施例提供的信号发送、接收方法所应用的系统架构图；
图3为本申请实施例提供的信号发送、接收方法的一种实施流程图；
图4为本申请实施例提供的对WUS进行加扰过程示意图；
图5为本申请实施例提供的一种生成第一子信号和第二子信号的过程示意图；
图6为本申请实施例提供的另一种生成第一子信号和第二子信号的过程示意图；
图7为本申请实施例提供的一种应用于网络设备的信号发送装置的结构示意图；
图8为本申请实施例提供的一种应用于终端的信号接收装置的结构示意图；
图9为本申请实施例提供的一种网络设备的结构示意图；
图10为本申请实施例提供的一种终端的结构示意图。
具体实施方式
下面将结合附图，对本申请实施例进行描述。
首先，对本申请中的部分用语进行解释说明，以便于本领域技术人员理解。
1)、终端，又称之为用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等，是一种向用户提供语音和/或数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端的举例为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。
2)、网络设备，指无线网络中的设备，例如将终端接入到无线网络的无线接入网(radio access network，RAN)节点(或设备)，又可以称为基站。目前，一些RAN节点的举例为：继续演进的节点B(gNB)、传输接收点(transmission reception point，TRP)、演进型节点B(evolved Node B，eNB)、无线网络控制器(radio network controller，RNC)、节点B(Node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station,BTS)、家庭基站(例如，home evolved NodeB，或home Node B，HNB)、基带单元(base band unit，BBU)，或无线保真(wireless fidelity，Wifi)接入点(access point，AP)等。另外，在一种网络结构中，RAN可以包括集中单元(centralized unit，CU)节点和分布单元(distributed unit，DU)节点。这种结构将长期演进(long term evolution，LTE)系统中eNB的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU。
3)、“多个”是指两个或两个以上，其它量词与之类似。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
4)、交互，是指交互双方彼此向对方传递信息的过程，这里传递的信息可以相同，也可以不同。例如，交互双方为基站1和基站2，可以是基站1向基站2请求信息，基站2向基站1提供基站1请求的信息。当然，也可以基站1和基站2彼此向对方请求信息，这里请求的信息可以相同，也可以不同。
5)、名词“网络”和“系统”经常交替使用，但本领域的技术人员可以理解其含义。信息(information)，信号(signal)，消息(message)，信道(channel)有时可以混用，应当指出的是，在不强调其区别时，其所要表达的含义是一致的。“的(of)”，“相应的(corresponding，relevant”)和“对应的(corresponding)”有时可以混用，应当指出的是，在不强调其区别时，其所要表达的含义是一致的。
本申请实施例提供的信号发送方法、信号接收方法可应用于通信系统中，在该信系统中存在发送下行数据的实体，以及接收下行数据的实体。本申请实施例中为描述方便，以发送下行数据的实体为网络设备，接收下行数据的实体为终端为例进行说明，当然并不引以为限。
一种可能的示例中，本申请实施例提供的信号发送、接收方法可应用于支持MTC业务的LTE系统或LTE-A系统中，例如，本申请实施例提供的信号发送方法、信号接收方法可应用于图2所示的通信系统。图2中，网络设备和终端1～终端6组成一个通信系统。在该通信系统中，网络设备可以理解为是网络侧用于发送或接收信号的实体，可以向终端1～终端 6发送下行数据。终端1～终端6可以是任意形态的终端，例如可以是进行MTC业务的带宽降低低复杂度UE(Bandwidth-reduced Low-complexity UE，BL UE)、覆盖增强的UE(Coverage Enhancement UE，CE UE)等。终端1～终端6需要接收网络设备发送的下行数据，并通过某种方式对该下行数据是否正确接收反馈给网络设备。此外，终端4～终端6也可以组成通信子系统。网络设备发送下行数据给终端1、终端2、终端3、终端5等；终端5可以发送下行信息给终端4、终端6；终端4、终端6接收终端5发送的下行数据。
应理解，图2所示的通信系统中仅以包括一个网络设备为例进行说明，但本申请实施例并不限于此，例如，通信系统中还可以包括更多的网络设备；类似地，通信系统中也可以包括更多的终端，并且还可以包括其它设备。
进一步可以理解的是，本申请实施例的通信系统可以是指公共陆地移动网络(Public Land Mobile Network，PLMN)或者设备对设备(Device to Device，D2D)网络或者M2M网络或者其他网络，图2只是举例的简化示意图，通信网络中还可以包括其他设备，图2中未予以示出。
可以理解的是，本申请实施例中的方案所应用的通信系统可以是LTE系统或LTE-A系统，当然本申请实施例中的方案还可以应用于其他无线通信系统中，例如还可应用于5G新无线(New Radio，NR)网络。本申请实施例中涉及的网络设备和终端相应的名称可以是无线通信网络中对应功能的名称。
在上述涉及的通信系统中，网络设备会向终端发送系统信息(例如终端初始接入时，或者系统信息发生变化时)，以便使终端可以获知后续通信所需的信息。然而，在终端已接入通信网络的情况下，终端不能及时确定系统信息是否发生变化，可能会出现系统信息未发生变化，终端尝试重新获取系统信息造成功耗浪费的情况。
有鉴于此，本申请实施例提供一种信号发送、接收方法，在该信号发送方法中，网络设备向终端发送用于指示系统信息是否发生变化或者用于指示终端是否需要读取系统信息的信号。在信号接收方法中，终端接收网络设备发送的用于指示系统信息是否发生变化或者用于指示终端是否需要读取系统信息的信号，并确定系统信息是否发生变化或者是否需要读取系统信息。通过本申请实施例提供的信号发送方法以及信号接收方法，可以使终端及时确定系统信息是否发生变化，进而确定是否需要重新获取系统信息。
进一步的，本申请实施例中，网络设备可在系统信息发生变化后的设定时长内，向终端发送用于指示系统信息在设定时长内发生了变化的信号，以在系统信息发生了变化的情况下，提高终端及时获取到变化的系统信息的几率。在发送用于指示系统信息在设定时长内发生了变化的信号后，若系统信息在所述设定时长内未发生变化，网络设备可在系统信息发生变化后的时长达到所述设定时长后，发送用于指示系统信息在所述设定时长内未发生变化的信号，以在系统信息未发生变化的情况下，及时使终端获知系统信息未发生变化，以在系统信息未发生变化的情况下，避免终端尝试重新获取系统信息，造成功耗浪费。
网络设备可在系统信息发生变化的情况下，指示终端读取系统信息，在系统信息在所述设定时长内未发生变化的情况下，指示终端不需要读取系统信息。故，本申请实施例中，网络设备可在指示终端读取系统信息后的设定时长内发送用于指示读取系统信息的信号，以使终端及时获取到发生变化的系统信息。网络设备在指示终端读取系统信息后的时长达到所述设定时长后发送用于指示不需要读取系统信息的信号，以使终端及时确定系统信息在所述设定时长内未发生变化。
本申请实施例中为描述方便可将用于指示系统信息在设定时长内发生了变化或用于指示终端读取系统信息的信号称为第一信号，将用于指示系统信息在所述设定时长内未发生变化或用于指示终端不需要读取系统信息的信号称为第二信号。
图3所示为本申请实施例提供的一种信号发送、接收方法的实施流程图，参阅图3所示，包括：
S101：网络设备确定第一信号和第二信号。
本申请实施例中，第一信号和第二信号为不同的信号。第一信号用于指示系统信息在设定时长内发生了变化，第二信号用于指示系统信息在所述设定时长内未发生变化，或者第一信号用于指示终端读取系统信息，第二信号指示终端不需要读取系统信息。
一种可能的示例中，系统信息可以是MIB，系统信息发生变化可以是指MIB的内容发生变化。或系统信息可以是MIB和/或SIB1，系统信息发生变化可以是指MIB和/或SIB1的内容发生变化。系统信息也可以是除SIB10、SIB11、SIB12、SIB14以外的其它SIB信息，系统信息发生变化可以是指除SIB10、SIB11、SIB12、SIB14以外的其它SIB的内容的变化。或系统信息可以为除SIB1、SIB10、SIB11、SIB12、SIB14以外的其它SIB信息、MIB信息、SIB1信息中的一种或多种，系统信息发生变化可以是指除SIB1、SIB10、SIB11、SIB12、SIB14以外的其它SIB信息、MIB信息、SIB1信息中的一种或多种的内容发生变化。
可以理解的是，上述涉及的MIB中，包含系统帧号(System Frame Number，SFN)，该值是随时间周期性变化的，该值发生变化并不视为导致MIB内容发生变化。类似的，上述涉及的SIB1内容发生变化可以是指SIB1-BR内容发生变化，其中，若SIB1-BR中包含Hyper-SFN，该值是随时间周期性变化的，该值发生变化并不视为导致SIB1-BR内容发生变化。
S102：网络设备向终端发送第一信号或第二信号。
本申请实施例中网络设备可通过在系统信息发生变化后的设定时长内向终端发送第一信号，以指示系统信息在设定时长内发生变化。在所述系统信息发生变化后的时长达到所述设定时长后向终端发送第二信号，以指示系统信息在该设定时长内未发生变化。或者网络设备在指示终端读取系统信息后的设定时长内发送第一信号，在指示终端读取系统信息后的时长达到所述设定时长后发送第二信号。
S103：终端接收网络设备发送的第一信号，依据该第一信号确定系统信息在设定时长内发生了变化或者确定需要读取系统信息。或者终端接收网络设备发送的第二信号，依据该第二信号确定系统信息在所述设定时长内未发生变化或者确定不需要读取系统信息。
具体的，终端接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号，所述第一信号用于指示系统信息在设定时长内发生了变化，终端依据所述第一信号确定系统信息在设定时长内发生了变化。或者终端接收网络设备在系统信息发生变化后的时长达到所述设定时长后发送的第二信号，第二信号用于指示系统信息在所述设定时长内未发生变化，终端依据所述第二信号确定系统信息在所述设定时长内未发生变化。或者终端接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号，第一信号用于指示终端读取系统信息，终端依据该第一信号确定需要读取系统信息。或者终端接收网络设备在指示终端读取系统信息后的时长达到所述设定时长后发送的第二信号，第二信号用于指示终端不需要读取系统信息，终端依据该第二信号确定不需要读取系统信息。
本申请实施例中，上述涉及的设定时长是可配的，为描述方便，将该时长用X表示， 时长X可以作为系统信息由网络设备广播，也可以通过诸如无线资源控制(Radio Resource Control，RRC)等高层信令进行配置。
本申请实施例中，网络设备通过在设定时长内向终端发送第一信号或在设定时长之后向终端发送第二信号，终端接收到第一信号或第二信号，可使终端获知系统信息在一定时间内是否发生了变化，从而确定是否需要重新获取系统信息。
本申请实施例中网络设备通过向终端发送第一信号或第二信号这两种不同的信号，使得终端能够及时确定系统信息是否发生变化或者确定是否需要读取系统信息，提高了网络设备指示系统信息的时效性。
本申请实施例中，可通过对同一种信号进行不同的处理，以得到第一信号和第二信号这两种不同的信号。本申请实施例中为描述方便并区别第一信号和第二信号，将该进行处理得到第一信号和第二信号的信号称为第三信号。通常该第三信号是周期性发送的并可以是通过自相关或者互相关的方法进行检测的信号，例如该第三信号可以是唤醒信号(Wake Up Signal，WUS)，也可以是同步信号，该同步信号可以是PSS、SSS，或者基于PSS和/或SSS的增强型同步信号(enhanced synchronization signal，eSS)等。
本申请实施例中，第一信号可根据第三信号生成，第二信号可根据生成第一信号的第三信号生成。具体的，本申请实施例中通过第三信号生成第一信号和第二信号这两种不同的信号，可采用诸如加扰第三信号、对第三信号取共轭和对第三信号的符号和/或子载波进行顺序调整等方式。例如，本申请实施例中，采用加扰第三信号的方式生成第一信号和第二信号，生成所述第一信号所采用的加扰方式和生成所述第二信号所采用的加扰方式不同，例如第一信号可通过第一扰码加扰第三信号生成，第二信号可通过采用不同于第一扰码的第二扰码加扰第三信号生成，具体的，比如第二信号可通过使用与第一扰码正交的第二扰码加扰第三信号生成。再例如，本申请实施例中，第一信号采用对所述第三信号取共轭方式生成，第二信号采用对所述第三信号不取共轭方式生成。或者第二信号采用对第三信号取共轭方式生成，第一信号采用对所述第三信号不取共轭方式生成。再例如，本申请实施例中，第一信号可以是通过对第三信号的符号和/或子载波进行顺序调整得到的信号，第二信号可以是通过对第三信号的符号和/或子载波进行不同于得到第一信号所采用的顺序调整方式的其它顺序调整方式进行顺序调整得到的信号。再例如，第一信号可以通过采用第一扰码加扰第三信号并对加扰后的第三信号取共轭生成，第二信号可以通过采用与第一扰码正交的第二扰码加扰第三信号生成。本申请实施例中第一信号和第二信号的具体实现方式，本申请实施例在此不再一一列举。
本申请实施例以下以第三信号为WUS为例，并结合实际应用，对上述生成第一信号和第二信号，并通过第一信号或第二信号这两种不同的信号指示系统信息是否发生变化，或者指示终端是否读取系统信息的具体实施过程进行详细说明。对于第三信号为同步信号等其它周期性发送的信号的实施过程类似，在此不再赘述。
WUS用于指示终端是否在下一个寻呼时机(Paging Occasion，PO)检测MPDCCH。WUS可以理解为是窄带物理信号，配置的时频资源位置相对固定，便于网络设备用较高的功率发送WUS，且便于终端通过序列相关(correlation)的方式检测WUS。终端通过检测WUS确定是否需要接收用于指示Paging的调度信息或作为DII的MPDCCH，其检测开销较小，检测正确率也较高。
本申请的一种可能的实施例中，WUS总是周期性发送，WUS包括第一WUS和第二 WUS，其中，第一WUS用于指示终端检测MPDCCH，第二WUS用于指示终端不需要检测MPDCCH。本申请实施例中可将第一WUS表示为W，其中，W＝{w(0)，w(1)，w(2)，…w(n-1)}；将第二WUS表示为S，其中S＝{s(0)，s(1)，s(2)，…s(n-1)}。故网络设备向终端发送的WUS可能为信号W，也可能为信号S，并且在每一个PO，无论在PO对应的时间内是否需要终端检测MPDCCH，WUS都总是发送；当终端检测到WUS为W时，则代表接下来PO对应的时间内检测MPDCCH；当终端检测到WUS为S时，则代表在PO对应的时间内不需要检测MPDCCH。
本申请实施例中并不限定W和S的具体形式，只需要W和S能够被终端区分为不同的信号即可，例如W和S可为正交的序列。比如，W和S可以是两个不同的m序列，两个不同的ZC序列，或者是由相同的序列做两种不同的加扰(scrambling)得到的两种不同的序列。
本申请实施例中网络设备可根据W生成第一信号并向终端发送根据W生成的第一信号，也可根据S生成第一信号并向终端发送根据S生成的第一信号。其中，根据W生成的第一信号可用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化，网络设备在所述系统信息发生变化后的所述设定时长内发送根据W生成的第一信号，终端接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号，依据所述第一信号确定需要检测MPDCCH且系统信息在设定时长内发生了变化。或根据W生成的第一信号可用于指示终端需要检测MPDCCH且指示终端读取系统信息，网络设备在指示终端读取系统信息后的设定时长内发送根据W生成的第一信号，终端接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号，依据所述第一信号确定需要检测MPDCCH且需要读取系统信息。根据S生成的第一信号可用于指示终端不需要检测MPDCCH且系统信息在设定时长内发生了变化，网络设备在所述系统信息发生变化后的所述设定时长内发送根据S生成的第一信号，终端接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号，依据所述第一信号确定不需要检测MPDCCH且系统信息在设定时长内发生了变化。或根据S生成的第一信号可用于指示终端不需要检测MPDCCH且指示终端读取系统信息，网络设备在指示终端读取系统信息后的设定时长内发送根据S生成的第一信号，终端接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号，依据所述第一信号确定不需要检测MPDCCH且需要读取系统信息。
本申请实施例中网络设备可根据W生成第二信号并向终端发送根据W生成的第二信号，也可根据S生成第二信号并向终端发送根据S生成的第二信号。其中，根据W生成的第二信号用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化，网络设备在系统信息发生变化后的时长达到设定时长后发送第二信号，终端接收网络设备在系统信息发生变化后的时长达到设定时长后发送的第二信号，依据该第二信号确定终端需要检测MPDCCH且系统信息在所述设定时长内未发生变化。或根据W生成的第二信号可用于指示终端检测MPDCCH且指示终端不需要读取系统信息，网络设备在指示终端读取系统信息后的时长达到设定时长后发送第二信号，终端接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号，依据该第二信号确定终端需要检测MPDCCH且不需要读取系统信息。根据S生成的第二信号可用于指示终端不需要检测MPDCCH且系统信息在所述设定时长内未发生变化，网络设备在系统信息发生变化后的时长达到设定时长后发送第二信号，终端接收网络设备在系统信息发生变化后的时长达到设定时长后发送的第二信号，依据该第二信号确定终端不需要检测MPDCCH且系统信息在所述设定时 长内未发生变化。或根据S生成的第二信号可用于指示终端不需要检测MPDCCH且指示终端不需要读取系统信息，网络设备在指示终端读取系统信息后的时长达到设定时长后发送第二信号，终端接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号，依据该第二信号确定终端不需要检测MPDCCH且不需要读取系统信息。
本申请实施例中，根据W或S生成第一信号或第二信号，使得W或S携带用于指示系统是否发生变化的信息或携带用于指示终端是否读取系统信息的信息，使得终端无论接收到W还是S，都能获知系统信息在一段时间内是否发生了变化，或是否需要读取系统信息。
本申请实施例中根据W或S生成第一信号或第二信号，可采用对W或S进行加扰、取共轭和/或顺序调整等方式，本申请实施例中以对W进行加扰得到第一信号或第二信号为例进行说明。
本申请实施例中可使用两种互相正交的加扰序列C和加扰序列D对W进行加扰，得到第一信号和第二信号。例如每当系统信息发生变化时，使用加扰序列C对W进行加扰得到第一信号，用于指示“X时间内系统信息发生了改变”。持续X时间后，系统信息在该X时间内都没有变化，则使用加扰序列D对W进行加扰得到第二信号，用于指示“X时间内系统信息没有改变”，如图4所示。
本申请实施例中，为了增强WUS的覆盖性能，提升被检测概率，WUS很可能是重复发送的，比如，以重复发送4次为例，重复发送的WUS可能为{W，W，W，W}或{S，S，S，S}。假设C表示为C＝{-L，L，-L，L}，D表示为D＝{L，L，L，L}，则C与D正交，表现为corr({L，-L，L，-L}，{L，L，L，L})＝1–1+1–1＝0。其中，corr(x，y)表示对序列x和序列y进行相关运算且归一化，L为长为n的全“1”序列。使用加扰序列C对W进行加扰得到的第一信号可以表示为{-W，W，-W，W}，使用加扰序列D对W进行加扰得到的第二信号可以表示为{W，W，W，W}。
可以理解的是，本申请实施例中加扰序列C和加扰序列D为正交的序列，通过相互正交的加扰序列C和加扰序列D对相互正交的序列W和序列S进行加扰，不破坏W和S之间的正交性即可，故本申请实施例对C和D的具体形式不做限定，C和D既可以是两个不同的m序列，也可以是两个不同的ZC序列。比如，C和D可以为两个正交的、长度为4n的ZC序列，而不限定为是4段长度为n的正负1序列的组合。
采用与上述类似的方式，根据系统信息是否发生变化以及是否需要检测MPDCCH，网络设备向终端发送的信号可表示为如下表1所示：
表1
Figure PCTCN2017104674-appb-000001
网络设备对W和S进行加扰，以及向终端发送W和S，发送加扰后的W和S的过程示意图可如图5所示。参阅图5可知，本申请实施例中网络设备是在发送WUS信号的周期内是一直发送WUS信号(W或S)的。
终端接收到网络设备发送的信号后，可根据接收到的信号确定终端是否需要检测 MPDCCH以及系统信息是否发生变化，例如终端使用W和S与接收信号分别做相关和归一化，得到的两种结果为[A1A2A3A4]和[B1B2B3B4]，然后依照下表2所示的方式可确定接收到的信号是W还是S信号，并确定终端是否需要检测MPDCCH以及系统信息是否发生变化。
表2
Figure PCTCN2017104674-appb-000002
其中，|z|表示对z取模值。可以理解的是，表2中4与0均为理论值，实际中由于信道畸变、噪声、干扰的存在，会使得同序列的相关峰峰值降低，低于理论值的4，也会使得不同序列之间的互相关结果不是严格为0。终端可以通过选取一个合适的阈值，确定接收到的信号是W还是S信号，并确定终端是否需要检测MPDCCH以及系统信息是否发生变化。
需要说明的是，本申请实施例中W或S与其所指示的MPDCCH之间的对应关系(也即在不同时频资源上的WUS与哪个PO的MPDCCH对应)可以是预定义的，也可以是网络设备通过RRC信令为终端配置的。
进一步的，时长X需要大于Paging的周期(若X小于Paging周期，则有可能在终端获取WUS时，系统已经从用C加扰变回使用D加扰，这样终端就无法通过WUS获知系统信息的变化)。比如，考虑到Paging的周期最大可能达到约43分钟，则X可以配置为1小时，3小时，6小时，12小时，24小时等等。
本申请实施例中相互正交的W与S用于指示终端是否检测MPDCCH，使用正交序列C和D对两种W或S加扰，使得终端可以判断系统信息在X时长内是否有变化或是否需要读取系统信息，故根据W或S生成第一信号或第二信号，不仅可以使终端获知是否被唤醒，还能获知系统信息的变化情况。
本申请的另一种可能的示例中，WUS只会在终端需要在PO中检测调度Paging(或作为DII)的MPDCCH的情况下才发送，WUS包括一种信号，该信号用于指示终端需要检测MPDCCH。本申请实施例中仍将用于指示终端需要检测MPDCCH的WUS信号表示为W，其中，W＝{w(0)，w(1)，w(2)，…w(n-1)}。在每一个PO，只有在PO对应的时间内需要终端检测MPDCCH，W才会发送；当终端检测到该WUS时，则代表PO对应的时间内需要检测MPDCCH；当终端检测不到W时，则代表PO对应的时间内不需要检测MPDCCH。
本申请实施例中，网络设备可根据用于指示终端检测MPDCCH的WUS生成第一信号或第二信号。其中，根据WUS生成的第一信号可用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化，网络设备在所述系统信息发生变化后的所述设定时长内发送第一信号，终端接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号，根据该的第一信号确定需要检测MPDCCH且系统信息在设定时长内发生了变化。或者根据WUS生成的第一信号可用于指示终端检测MPDCCH且指示终端读取系统信息，网络设备在指示终端读取系统信息后的设定时长内发送第一信号，终端接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号，根据第一信号确定终端需要检测MPDCCH且需要读取系统信息。
网络设备根据WUS生成的第二信号可用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化，网络设备在系统信息发生变化后的时长达到设定时长后发送第二信号，终端接收网络设备在系统信息发生变化后的时长达到设定时长后发送的第二信号，根据第二信号确定终端需要检测MPDCCH且系统信息在所述设定时长内未发生变化。或者网络设备根据WUS生成的第二信号可用于指示终端检测MPDCCH且指示终端不需要读取系统信息，网络设备在指示终端读取系统信息后的时长达到设定时长后发送第二信号，终端接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号，根据第二信号确定终端需要检测MPDCCH且不需要读取系统信息。
本申请实施例中可使用两种互相正交的加扰序列C和加扰序列D对WUS进行加扰，得到第一信号和第二信号。例如每当系统信息发生变化时，使用加扰序列C对WUS进行加扰得到第一信号，用于指示“X时间内系统信息发生了改变”。持续X时间后，系统信息在该X时间内都没有变化，则使用加扰序列D对W进行加扰得到第二信号，用于指示“X时间内系统信息没有改变”。本申请实施例中使用C或D对W进行加扰的具体实施过程可参阅图4所示以及相关实施例的描述，在此不再赘述。
本申请实施例中仍重复发送4次W作为WUS为例，重复发送的WUS可能为{W，W，W，W}，并以加扰序列C＝{-L，L，-L，L}，D＝{L，L，L，L}，L为长为n的全“1”序列为例，则网络设备根据系统信息是否发生变化以及是否需要检测MPDCCH，网络设备向终端发送的信号可表示为如下表3所示：
表3
Figure PCTCN2017104674-appb-000003
可以理解的是，上述表3中网络设备不发送WUS，有可能是网络设备在该时频资源上不发送任何信号，也可能是网络设备发送非WUS信号，比如发送数据信号。如果W具有较好的自相关和互相关特性，则终端在进行相关检测时也不会误把非W的数据信号检测成W。
本申请实施例中网络设备对WUS进行加扰，以及向终端发送WUS，发送加扰后的WUS的过程示意图可如图6所示。参阅图6可知，本申请实施例中网络设备是在终端需要检测MPDCCH时才会发送WUS信号，而在终端不需要检测MPDCCH时不发送WUS信号。
终端接收到网络设备发送的信号后，可根据接收到的信号确定终端是否需要检测MPDCCH以及系统信息是否发生变化，例如终端使用W与接收信号做相关和归一化，得到的两种结果为[A1A2A3A4]，然后依照下表4所示的方式可确定接收到的信号是否为WUS信号，并确定终端是否需要检测MPDCCH以及系统信息是否发生变化。
表4
Figure PCTCN2017104674-appb-000004
通过上述表4可知，终端可以根据是否接收到WUS来判断是否需要检测该WUS所对应的MPDCCH；当WUS发送时，终端可以根据检测的结果判断系统信息在X小时内是否发生了变化。若终端没有检测到WUS，则其可以确定不需要检测WUS，也没有被唤醒，可以重新进入Idle态(休眠状态)，并且可以自行假设系统信息是否发生变化、是否需要重新获取系统信息，比如假设系统信息没有发生变化，不需要重新获取系统信息；或者根据其他条件确定是否需要重新获取系统信息。
本申请实施例中使用C或D对WUS进行加扰，以使让WUS携带用于指示系统信息是否发生变化的信息或携带用于指示终端是否读取系统信息的信息，使得终端接收到WUS时，确定需要检测MPDCCH，并能获知系统信息在一段时间内是否发生了变化，或者获知是否需要读取系统信息。
上述主要从网络设备和终端交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，网络设备和终端为了实现上述功能，其包含了执行各个功能相应的硬件结构和/或软件模块。结合本申请中所公开的实施例描述的各示例的单元及算法步骤，本申请实施例能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。本领域技术人员可以对每个特定的应用来使用不同的方法来实现所描述的功能，但是这种实现不应认为超出本申请实施例的技术方案的范围。
本申请实施例可以根据上述方法示例对网络设备和终端进行功能单元的划分，例如，可以对应各个功能划分各个功能单元，也可以将两个或两个以上的功能集成在一个处理单 元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
在采用集成的单元的情况下，图7示出了本申请实施例提供的一种信号发送装置100的结构示意图，该信号发送装置100可应用于网络设备。参阅图7所示，信号发送装置100包括处理单元101和发送单元102。
一种可能的实施方式中，所述处理单元101用于确定第一信号和第二信号，所述第一信号和所述第二信号不相同，所述第一信号用于指示系统信息在设定时长内发生了变化，所述第二信号用于指示所述系统信息在所述设定时长内未发生变化。所述发送单元102用于在所述系统信息发生变化后的所述设定时长内发送所述处理单元101确定的第一信号，在所述系统信息发生变化后的时长达到所述设定时长后发送所述处理单元101确定的第二信号。
另一种可能的实施方式中，所述处理单元101用于确定第一信号和第二信号，所述第一信号和所述第二信号不相同，所述第一信号用于指示终端读取系统信息，所述第二信号用于指示终端不需要读取系统信息。所述发送单元102用于在指示终端读取系统信息后的设定时长内发送所述处理单元101确定的第一信号，在指示终端读取系统信息后的时长达到所述设定时长后发送所述处理单元101确定的第二子信号。
其中，所述系统信息为主信息块MIB信息；或所述系统信息为MIB信息和/或系统信息块SIB1信息；或所述系统信息为除SIB10、SIB11、SIB12、SIB14以外的其它SIB信息；或所述系统信息为除SIB1、SIB10、SIB11、SIB12、SIB14以外的其它SIB信息、MIB信息、SIB1信息中的一种或多种。
其中，所述处理单元101可根据第三信号生成所述第一信号，并根据生成所述第一信号的所述第三信号生成所述第二信号。
具体的，所述处理单元101采用加扰所述第三信号、对所述第三信号取共轭、对所述第三信号的符号和/或子载波进行顺序调整等方式中的至少一种方式分别生成所述第一信号和所述第二信号。
其中，生成所述第一信号所采用的加扰方式和生成所述第二信号所采用的加扰方式不同；或，所述第一信号采用对所述第三信号取共轭方式生成，所述第二信号采用对所述第三信号不取共轭方式生成；或者所述第二信号采用对所述第三信号取共轭方式生成，所述第一信号采用对所述第三信号不取共轭方式生成；或，生成所述第一信号所采用的顺序调整方式和生成所述第二信号所采用的顺序调整方式不同。
具体的，所述第三信号为同步信号或唤醒信号WUS。
一种可能的设计中，所述WUS包括用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的第一WUS，以及用于指示终端不需要检测MPDCCH的第二WUS。
所述发送单元102可在所述系统信息发生变化后的所述设定时长内发送根据第一WUS生成的第一信号，所述根据第一WUS生成的第一信号用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化。或，所述发送单元102可在所述系统信息发生变化后的所述设定时长内发送根据第二WUS生成的第一信号，所述根据第二WUS生成的第一信号用于指示终端不需要检测MPDCCH且系统信息在设定时长内发生了变化。
所述发送单元102也可在所述系统信息发生变化后的时长达到所述设定时长后发送根据第一WUS生成的第二信号，所述根据第一WUS生成的第二信号用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化。或，所述发送单元102也可在所述系 统信息发生变化后的时长达到所述设定时长后发送根据第二WUS生成的第二信号，所述根据第二WUS生成的第二信号用于指示终端不需要检测MPDCCH且系统信息在所述设定时长内未发生变化。
所述发送单元102可在指示终端读取系统信息后的设定时长内发送根据第一WUS生成的第一信号，所述根据第一WUS生成的第一信号用于指示终端检测MPDCCH且指示终端读取系统信息。或，所述发送单元102在指示终端读取系统信息后的设定时长内发送根据第二WUS生成的第一信号，所述根据第二WUS生成的第一信号用于指示终端不需要检测MPDCCH且指示终端读取系统信息。
所述发送单元102在指示终端读取系统信息后的时长达到所述设定时长后发送根据第一WUS生成的第二信号，所述根据第一WUS生成的第二信号用于指示终端检测MPDCCH且指示终端不需要读取系统信息。或，所述发送单元102在指示终端读取系统信息后的时长达到所述设定时长后发送根据第二WUS生成的第二信号，所述根据第二WUS生成的第二信号用于指示终端不需要检测MPDCCH且指示终端不需要读取系统信息。
另一种可能的设计中，所述WUS为用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的WUS。
所述发送单元102在所述系统信息发生变化后的所述设定时长内发送根据所述WUS生成的第一信号，根据所述WUS生成的第一信号用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化。或者，所述发送单元102在所述系统信息发生变化后的时长达到所述设定时长后发送根据所述WUS生成的第二信号，根据所述WUS生成的第二信号用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化。或者，所述发送单元102在指示终端读取系统信息后的设定时长内发送根据所述WUS生成的第一信号，根据所述WUS生成的第一信号用于指示终端检测MPDCCH且指示终端读取系统信息。或者所述发送单元102在指示终端读取系统信息后的时长达到所述设定时长后发送根据所述WUS生成的第二信号，根据所述WUS生成的第二信号用于指示终端检测MPDCCH且指示终端不需要读取系统信息。
可以理解的是，本申请实施例中，应用于网络设备的信号发送装置100所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中关于这些内容的描述，此处不做赘述。
在采用集成单元的情况下，图8示出了本申请实施例提供的一种信号接收装置200的结构示意图，该信号接收装置200可应用于终端。参阅图8所示，应用于终端的信号接收装置200包括接收单元201和处理单元202。
一种可能的实施方式中，所述接收单元201用于接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号，所述第一信号用于指示系统信息在设定时长内发生了变化；所述处理单元202用于依据所述接收单元201接收到的第一信号确定系统信息在设定时长内发生了变化。其中，所述第一信号和所述第二信号不相同。
另一种可能的实施方式中，所述接收单元201用于接收网络设备在系统信息发生变化后的时长达到设定时长后发送的第二信号，所述第二信号用于指示系统信息在所述设定时长内未发生变化，所述处理单元202用于依据所述接收单元201接收的第二信号确定系统信息在所述设定时长内未发生变化。其中，所述第一信号和所述第二信号不相同。
又一种可能的实施方式中，所述接收单元201用于接收网络设备在指示终端读取系统 信息后的设定时长内发送的第一信号，所述第一信号用于指示终端读取系统信息，所述处理单元202用于依据所述接收单元201接收的第一信号确定需要读取系统信息。其中，所述第一信号和所述第二信号不相同。
又一种可能的实施方式中，所述接收单元201用于接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号，所述第二信号用于指示终端不需要读取系统信息，所述处理单元202用于依据所述接收单元201接收的第二信号确定不需要读取系统信息。其中，所述第一信号和所述第二信号不相同。
本申请实施例中，所述第一信号根据第三信号生成，且所述第二信号根据生成所述第一信号的所述第三信号生成。
其中，所述第一信号和所述第二信号分别采用加扰所述第三信号；对所述第三信号取共轭；对所述第三信号的符号和/或载波进行顺序调整等方式中的至少一种方式生成。
其中，生成所述第一信号所采用的加扰方式和生成所述第二信号所采用的加扰方式不同；或，所述第一信号采用对所述第三信号取共轭方式生成，所述第二信号采用对所述第三信号不取共轭方式生成；或者所述第二信号采用对所述第三信号取共轭方式生成，所述第一信号采用对所述第三信号不取共轭方式生成；或，生成所述第一信号所采用的顺序调整方式和生成所述第二信号所采用的顺序调整方式不同。
一种可能的设计中，所述第三信号为同步信号或唤醒信号WUS。
具体的，所述WUS包括用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的第一WUS，以及用于指示终端不需要检测MPDCCH的第二WUS。所述处理单元202，还用于：在接收单元201接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号之后，根据所述第一信号确定需要检测MPDCCH，所述第一信号根据所述第一WUS生成，并用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化。或者在接收单元201接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号之后，根据所述第一信号确定不需要检测MPDCCH，所述第一信号根据所述第二WUS生成，并用于指示终端不需要检测MPDCCH且系统信息在设定时长内发生了变化。或者在接收单元201接收网络设备在系统信息发生变化后的时长达到所述设定时长后发送的第二信号之后，根据所述第二信号确定需要检测MPDCCH，所述第二信号根据所述第一WUS生成，并用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化。或者在接收单元201接收网络设备在系统信息发生变化后的时长达到所述设定时长后发送的第二信号之后，根据所述第二信号确定不需要检测MPDCCH，所述第二信号根据所述第二WUS生成，并用于指示终端不需要检测MPDCCH且系统信息在所述设定时长内未发生变化。或者在接收单元201接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号之后，根据所述第一信号确定需要检测MPDCCH，所述第一信号根据所述第一WUS生成，并用于指示终端检测MPDCCH且指示终端读取系统信息。或者，在接收单元201接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号之后，根据所述第一信号确定不需要检测MPDCCH，所述第一信号根据所述第二WUS生成，并用于指示终端不需要检测MPDCCH且指示终端读取系统信息。或者在接收单元201接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号之后，根据所述第二信号确定需要检测MPDCCH，所述第二信号根据所述第一WUS生成，并用于指示终端检测MPDCCH且指示终端不需要读取系统信息。或者，在接收单元201接收网络设备在指示终 端读取系统信息后的时长达到设定时长后发送的第二信号之后，根据所述第二信号确定不需要检测MPDCCH，所述第二信号根据所述第二WUS生成，并用于指示终端不需要检测MPDCCH且指示终端不需要读取系统信息。
具体的，所述WUS为用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的WUS。所述处理单元202还用于：在接收单元201接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号之后，根据所述第一信号确定需要检测MPDCCH，所述第一信号根据所述WUS生成，并用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化。或者，在接收单元201接收网络设备在系统信息发生变化后的时长达到设定时长后发送的第二信号之后，根据所述第二信号确定需要检测MPDCCH，所述第二信号根据所述WUS生成，并用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化。或者，在接收单元201接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号之后，根据所述第一信号确定需要检测MPDCCH，所述第一信号根据所述WUS生成，并用于指示终端检测MPDCCH且指示终端读取系统信息。或者，在接收单元201接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号之后，根据所述第二信号确定需要检测MPDCCH，所述第二信号根据所述WUS生成，并用于指示终端检测MPDCCH且指示终端不需要读取系统信息。
本申请实施例中，上述涉及的系统信息可以为以下几种情况：系统信息为主信息块MIB信息；或所述系统信息为MIB信息和/或系统信息块SIB1信息；或所述系统信息为除SIB10、SIB11、SIB12、SIB14以外的其它SIB信息；或所述系统信息为除SIB1、SIB10、SIB11、SIB12、SIB14以外的其它SIB信息、MIB信息、SIB1信息中的一种或多种。
可以理解的是，本申请实施例中，应用于终端的信号接收装置200所涉及的与本申请实施例提供的技术方案相关的概念，解释和详细说明及其他步骤请参见前述方法或其他实施例中关于这些内容的描述，此处不做赘述。
应理解，以上应用于网络设备的信号发送装置100和应用于终端的信号接收装置200的各个单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且这些单元可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分单元以软件通过处理元件调用的形式实现，部分单元以硬件的形式实现。例如，处理单元可以为单独设立的处理元件，也可以集成在网络设备或终端的某一个芯片中实现，此外，也可以以程序的形式存储于网络设备或终端的存储器中，由网络设备或终端的某一个处理元件调用并执行该单元的功能。其它单元的实现与之类似。此外这些单元全部或部分可以集成在一起，也可以独立实现。这里所述的处理元件可以是一种集成电路，具有信号的处理能力。在实现过程中，上述方法的各步骤或以上各个单元可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。此外，以上接收单元是一种控制接收的单元，可以通过终端的接收装置，例如天线和射频装置接收网络设备发送的信息。以上发送单元是一种控制发送的单元，可以通过网络设备的发送装置，例如天线和射频装置向终端发送信息。
例如，以上这些单元可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital singnal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。再如，当以上某个单元通过处理元件调度程序的 形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)或其它可以调用程序的处理器。再如，这些单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
请参考图9，其为本申请实施例提供的一种网络设备的结构示意图。其可以为以上实施例中的网络设备，用于实现以上实施例中网络设备的操作。如图9所示，该网络设备包括：天线110、射频装置120、基带装置130。天线110与射频装置120连接。在上行方向上，射频装置120通过天线110接收终端发送的信息，将终端发送的信息发送给基带装置130进行处理。在下行方向上，基带装置130对终端的信息进行处理，并发送给射频装置120，射频装置120对终端的信息进行处理后经过天线110发送给终端。
基带装置130可以为物理上的一个装置，也可以包括物理上分开的至少两个装置，例如包括CU和至少一个DU。其中DU可以和射频装置120集成在一个装置内，也可以物理上分开。对于基带装置130在物理上分开的至少两个装置之间在协议层上的划分不做限制，例如，基带装置130用于执行RRC，分组数据聚合层(Packet Data Convergence Protocol，PDCP)、无线链路控制(Radio link Control，RLC)层、MAC(Media Access Control，媒体接入控制)和物理层等协议层的处理，可以在任意两个协议层之间划分，使得基带装置包括物理上分开的两个装置，分别用于进行各自负责的协议层的处理。例如，在RRC和PDCP之间划分，再如，可以在PDCP和RLC之间划分等。此外，也可以在协议层内划分，例如将某个协议层部分和该协议层以上的协议层划分在一个装置中，该协议层剩余部分和该协议层以下的协议层划分在另一个装置中。以上应用于网络设备的信号发送装置100可以位于基带装置130的物理上分开的至少两个装置中的一个装置上。
网络设备可以包括多个基带板，基带板上可以集成多个处理元件，以实现所需要的功能。基带装置130可以包括至少一个基带板，以上应用于网络设备的信号发送装置100可以位于基带装置130，在一种实现中，图7所示的各个单元通过处理元件调度程序的形式实现，例如基带装置130包括处理元件131和存储元件132，处理元件131调用存储元件132存储的程序，以执行以上方法实施例中网络设备执行的方法。此外，该基带装置130还可以包括接口133，用于与射频装置120交互信息，该接口例如为通用公共无线接口(common public radio interface，CPRI)，当基带装置130与射频装置120物理上布置在一起时，该接口可以为板内接口，或板间接口，这里的板是指电路板。
在另一种实现中，图7所示的各个单元可以是被配置成实施以上网络设备执行的方法的一个或多个处理元件，这些处理元件设置于基带装置130上，这里的处理元件可以为集成电路，例如：一个或多个ASIC，或，一个或多个DSP，或，一个或者多个FPGA等。这些集成电路可以集成在一起，构成芯片。
例如，图7所示的各个单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现，例如，基带装置130包括SOC芯片，用于实现以上方法。该芯片内可以集成处理元件111和存储元件132，由处理元件131调用存储元件132的存储的程序的形式实现以上网络设备执行的方法或图7所示各个单元的功能。或者，该芯片内可以集成至少一个集成电路，用于实现以上网络设备执行的方法或图7所示各个单元的功能。或者，可以结合以上实现方式，部分单元的功能通过处理元件调用程序的形式实现，部分单元的功能通过集成电路的形式实现。
不管采用何种方式，总之，以上应用于网络设备的信号发送装置100包括至少一个处 理元件和存储元件，其中至少一个处理元件用于执行以上方法实施例所提供的网络设备执行的方法。处理元件可以以第一种方式：即执行存储元件存储的程序的方式执行以上方法实施例中网络设备执行的部分或全部步骤；也可以以第二种方式：即通过处理器元件中的硬件的集成逻辑电路结合指令的方式执行以上方法实施例中网络设备执行的部分或全部步骤；当然，也可以结合第一种方式和第二种方式执行以上方法实施例中网络设备执行的部分或全部步骤。
这里的处理元件同以上描述，可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)，还可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital singnal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。
存储元件可以是一个存储器，也可以是多个存储元件的统称。
请参考图10，其为本申请实施例提供的一种终端的结构示意图。其可以为以上实施例中的终端，用于实现以上实施例中终端的操作。如图10所示，该终端包括：天线210、射频装置220、基带装置230。天线210与射频装置220连接。在下行方向上，射频装置220通过天线210接收网络设备发送的信息，将网络设备发送的信息发送给基带装置230进行处理。在上行方向上，基带装置230对终端的信息进行处理，并发送给射频装置220，射频装置220对终端的信息进行处理后经过天线210发送给网络设备。
基带装置可以包括调制解调子系统，用于实现对数据各通信协议层的处理。还可以包括中央处理子系统，用于实现对终端操作系统以及应用层的处理。此外，还可以包括其它子系统，例如多媒体子系统，周边子系统等，其中多媒体子系统用于实现对终端相机，屏幕显示等的控制，周边子系统用于实现与其它设备的连接。调制解调子系统可以为单独设置的芯片，可选的，以上应用于终端的信号接收装置200便可以在该调制解调子系统上实现。
在一种实现中，图8所示的各个单元通过处理元件调度程序的形式实现，例如基带装置230的某个子系统，例如调制解调子系统，包括处理元件231和存储元件232，处理元件231调用存储元件232存储的程序，以执行以上方法实施例中终端执行的方法。此外，该基带装置230还可以包括接口233，用于与射频装置220交互信息。
在另一种实现中，图8所示的各个单元可以是被配置成实施以上终端执行的方法的一个或多个处理元件，这些处理元件设置于基带装置230的某个子系统上，例如调制解调子系统上，这里的处理元件可以为集成电路，例如：一个或多个ASIC，或，一个或多个DSP，或，一个或者多个FPGA等。这些集成电路可以集成在一起，构成芯片。
例如，图8所示的各个单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现，例如，基带装置230包括SOC芯片，用于实现以上方法。该芯片内可以集成处理元件231和存储元件232，由处理元件231调用存储元件232的存储的程序的形式实现以上终端执行的方法或图8所示各个单元的功能；或者，该芯片内可以集成至少一个集成电路，用于实现以上终端执行的方法或图8所示各个单元的功能；或者，可以结合以上实现方式，部分单元的功能通过处理元件调用程序的形式实现，部分单元的功能通过集成电路的形式实现。
不管采用何种方式，总之，以上用于终端的应用于终端的信号接收装置200包括至少 一个处理元件和存储元件，其中至少一个处理元件用于执行以上方法实施例所提供的终端执行的方法。处理元件可以以第一种方式：即执行存储元件存储的程序的方式执行以上方法实施例中终端执行的部分或全部步骤；也可以以第二种方式：即通过处理器元件中的硬件的集成逻辑电路结合指令的方式执行以上方法实施例中终端执行的部分或全部步骤；当然，也可以结合第一种方式和第二种方式执行以上方法实施例中终端执行的部分或全部步骤。
这里的处理元件同以上描述，可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)，还可以是被配置成实施以上方法的一个或多个集成电路，例如：一个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital singnal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。
存储元件可以是一个存储器，也可以是多个存储元件的统称。
根据本申请实施例提供的方法，本申请实施例还提供一种通信系统，其包括前述的网络设备和一个或多于一个终端。
本申请提供一种芯片，所述芯片与存储器相连，用于读取并执行所述存储器中存储的软件程序，以实现上述实施例涉及的网络设备或终端所执行的功能。
本申请提供一种计算机存储介质，所述计算机可读存储介质存储有计算机指令，当所述指令在计算机上运行时，可以完成上述实施例涉及的信号发送方法或信号接收方法。
本申请提供一种计算机程序产品，所述计算机程序产品中包括有计算机程序，该计算机程序用于执行完成上述实施例涉及的信号发送方法或信号接收方法。
本领域内的技术人员应明白，本申请实施例可提供为方法、系统、或计算机程序产品。因此，本申请实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。

Claims (28)

  1. 一种信号发送方法，其特征在于，包括：
    网络设备确定第一信号和第二信号，所述第一信号和所述第二信号不相同，所述第一信号用于指示系统信息在设定时长内发生了变化，所述第二信号用于指示所述系统信息在所述设定时长内未发生变化；
    所述网络设备在所述系统信息发生变化后的所述设定时长内发送所述第一信号，在所述系统信息发生变化后的时长达到所述设定时长后发送所述第二信号；
    或者
    网络设备确定第一信号和第二信号，所述第一信号和所述第二信号不相同，所述第一信号用于指示终端读取系统信息，所述第二信号用于指示终端不需要读取系统信息；
    所述网络设备在指示终端读取系统信息后的设定时长内发送所述第一信号，在指示终端读取系统信息后的时长达到所述设定时长后发送所述第二子信号。
  2. 根据权利要求1所述的方法，其特征在于，所述第一信号根据第三信号生成，且所述第二信号根据生成所述第一信号的所述第三信号生成。
  3. 根据权利要求2所述的方法，其特征在于，所述第一信号和所述第二信号分别采用如下方式中的至少一种方式生成：
    加扰所述第三信号；
    对所述第三信号取共轭；
    对所述第三信号的符号和/或子载波进行顺序调整；
    其中，生成所述第一信号所采用的加扰方式和生成所述第二信号所采用的加扰方式不同；或，
    所述第一信号采用对所述第三信号取共轭方式生成，所述第二信号采用对所述第三信号不取共轭方式生成；或者所述第二信号采用对所述第三信号取共轭方式生成，所述第一信号采用对所述第三信号不取共轭方式生成；或，
    生成所述第一信号所采用的顺序调整方式和生成所述第二信号所采用的顺序调整方式不同。
  4. 根据权利要求2或3所述的方法，其特征在于，所述第三信号为同步信号或唤醒信号WUS。
  5. 根据权利要求4所述的方法，其特征在于，所述WUS包括用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的第一WUS，以及用于指示终端不需要检测MPDCCH的第二WUS；
    所述网络设备在所述系统信息发生变化后的所述设定时长内发送所述第一信号，包括：
    所述网络设备在所述系统信息发生变化后的所述设定时长内发送根据第一WUS生成的第一信号，所述根据第一WUS生成的第一信号用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化；或，
    所述网络设备在所述系统信息发生变化后的所述设定时长内发送根据第二WUS生成的第一信号，所述根据第二WUS生成的第一信号用于指示终端不需要检测MPDCCH且系统信息在设定时长内发生了变化；
    所述网络设备在所述系统信息发生变化后的时长达到所述设定时长后发送所述第二信号，包括：
    所述网络设备在所述系统信息发生变化后的时长达到所述设定时长后发送根据第一WUS生成的第二信号，所述根据第一WUS生成的第二信号用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化；或，
    所述网络设备在所述系统信息发生变化后的时长达到所述设定时长后发送根据第二WUS生成的第二信号，所述根据第二WUS生成的第二信号用于指示终端不需要检测MPDCCH且系统信息在所述设定时长内未发生变化；
    所述网络设备在指示终端读取系统信息后的设定时长内发送所述第一信号，包括：
    所述网络设备在指示终端读取系统信息后的设定时长内发送根据第一WUS生成的第一信号，所述根据第一WUS生成的第一信号用于指示终端检测MPDCCH且指示终端读取系统信息；或，
    所述网络设备在指示终端读取系统信息后的设定时长内发送根据第二WUS生成的第一信号，所述根据第二WUS生成的第一信号用于指示终端不需要检测MPDCCH且指示终端读取系统信息；
    所述网络设备在指示终端读取系统信息后的时长达到所述设定时长后发送所述第二信号，包括：
    所述网络设备在指示终端读取系统信息后的时长达到所述设定时长后发送根据第一WUS生成的第二信号，所述根据第一WUS生成的第二信号用于指示终端检测MPDCCH且指示终端不需要读取系统信息；或，
    所述网络设备在指示终端读取系统信息后的时长达到所述设定时长后发送根据第二WUS生成的第二信号，所述根据第二WUS生成的第二信号用于指示终端不需要检测MPDCCH且指示终端不需要读取系统信息。
  6. 根据权利要求4所述的方法，其特征在于，所述WUS为用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的WUS；
    所述网络设备在所述系统信息发生变化后的所述设定时长内发送所述第一信号，包括：
    所述网络设备在所述系统信息发生变化后的所述设定时长内发送根据所述WUS生成的第一信号，根据所述WUS生成的第一信号用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化；
    所述网络设备在所述系统信息发生变化后的时长达到所述设定时长后发送所述第二信号，包括：
    所述网络设备在所述系统信息发生变化后的时长达到所述设定时长后发送根据所述WUS生成的第二信号，根据所述WUS生成的第二信号用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化；
    所述网络设备在指示终端读取系统信息后的设定时长内发送所述第一信号，包括：
    所述网络设备在指示终端读取系统信息后的设定时长内发送根据所述WUS生成的第一信号，根据所述WUS生成的第一信号用于指示终端检测MPDCCH且指示终端读取系统信息；
    所述网络设备在指示终端读取系统信息后的时长达到所述设定时长后发送所述第二 信号，包括：
    所述网络设备在指示终端读取系统信息后的时长达到所述设定时长后发送根据所述WUS生成的第二信号，根据所述WUS生成的第二信号用于指示终端检测MPDCCH且指示终端不需要读取系统信息。
  7. 根据权利要求1所述的方法，其特征在于，所述系统信息为主信息块MIB信息；或
    所述系统信息为MIB信息和/或系统信息块SIB1信息；或
    所述系统信息为除SIB10、SIB11、SIB12、SIB14以外的其它SIB信息；或
    所述系统信息为除SIB1、SIB10、SIB11、SIB12、SIB14以外的其它SIB信息、MIB信息、SIB1信息中的一种或多种。
  8. 一种信号接收方法，其特征在于，包括：
    终端接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号，所述第一信号用于指示系统信息在设定时长内发生了变化，所述终端依据所述第一信号确定系统信息在设定时长内发生了变化；或者
    终端接收网络设备在系统信息发生变化后的时长达到设定时长后发送的第二信号，所述第二信号用于指示系统信息在所述设定时长内未发生变化，所述终端依据所述第二信号确定系统信息在所述设定时长内未发生变化；或者
    终端接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号，所述第一信号用于指示终端读取系统信息，所述终端依据所述第一信号确定需要读取系统信息；或者
    终端接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号，所述第二信号用于指示终端不需要读取系统信息，所述终端依据所述第二信号确定不需要读取系统信息；
    其中，所述第一信号和所述第二信号不相同。
  9. 根据权利要求8所述的方法，其特征在于，所述第一信号根据第三信号生成，且所述第二信号根据生成所述第一信号的所述第三信号生成。
  10. 根据权利要求9所述的方法，其特征在于，所述第一信号和所述第二信号分别采用如下方式中的至少一种方式生成：
    加扰所述第三信号；
    对所述第三信号取共轭；
    对所述第三信号的符号和/或载波进行顺序调整；
    其中，生成所述第一信号所采用的加扰方式和生成所述第二信号所采用的加扰方式不同；或，
    所述第一信号采用对所述第三信号取共轭方式生成，所述第二信号采用对所述第三信号不取共轭方式生成；或者所述第二信号采用对所述第三信号取共轭方式生成，所述第一信号采用对所述第三信号不取共轭方式生成；或，
    生成所述第一信号所采用的顺序调整方式和生成所述第二信号所采用的顺序调整方式不同。
  11. 根据权利要求9或10所述的方法，其特征在于，所述第三信号为同步信号或唤醒信号WUS。
  12. 根据权利要求11所述的方法，其特征在于，所述WUS包括用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的第一WUS，以及用于指示终端不需要检测MPDCCH的第二WUS；
    终端接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号之后，所述方法还包括：
    所述终端根据所述第一信号确定需要检测MPDCCH，所述第一信号根据所述第一WUS生成，并用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化；或者
    所述终端根据所述第一信号确定不需要检测MPDCCH，所述第一信号根据所述第二WUS生成，并用于指示终端不需要检测MPDCCH且系统信息在设定时长内发生了变化；
    终端接收网络设备在系统信息发生变化后的时长达到所述设定时长后发送的第二信号之后，所述方法还包括：
    所述终端根据所述第二信号确定需要检测MPDCCH，所述第二信号根据所述第一WUS生成，并用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化；或者
    所述终端根据所述第二信号确定不需要检测MPDCCH，所述第二信号根据所述第二WUS生成，并用于指示终端不需要检测MPDCCH且系统信息在所述设定时长内未发生变化；
    终端接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号之后，所述方法还包括：
    所述终端根据所述第一信号确定需要检测MPDCCH，所述第一信号根据所述第一WUS生成，并用于指示终端检测MPDCCH且指示终端读取系统信息；或，
    所述终端根据所述第一信号确定不需要检测MPDCCH，所述第一信号根据所述第二WUS生成，并用于指示终端不需要检测MPDCCH且指示终端读取系统信息；
    终端接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号之后，所述方法还包括：
    所述终端根据所述第二信号确定需要检测MPDCCH，所述第二信号根据所述第一WUS生成，并用于指示终端检测MPDCCH且指示终端不需要读取系统信息；或，
    所述终端根据所述第二信号确定不需要检测MPDCCH，所述第二信号根据所述第二WUS生成，并用于指示终端不需要检测MPDCCH且指示终端不需要读取系统信息。
  13. 根据权利要求11所述的方法，其特征在于，所述WUS为用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的WUS；
    终端接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号之后，所述方法还包括：
    所述终端根据所述第一信号确定需要检测MPDCCH，所述第一信号根据所述WUS生成，并用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化；
    终端接收网络设备在系统信息发生变化后的时长达到设定时长后发送的第二信号之后，所述方法还包括：
    所述终端根据所述第二信号确定需要检测MPDCCH，所述第二信号根据所述WUS生成，并用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化；
    终端接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号之后，所 述方法还包括：
    所述终端根据所述第一信号确定需要检测MPDCCH，所述第一信号根据所述WUS生成，并用于指示终端检测MPDCCH且指示终端读取系统信息；
    终端接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号之后，所述方法还包括：
    所述终端根据所述第二信号确定需要检测MPDCCH，所述第二信号根据所述WUS生成，并用于指示终端检测MPDCCH且指示终端不需要读取系统信息。
  14. 根据权利要求8所述的方法，其特征在于，所述系统信息为主信息块MIB信息；或
    所述系统信息为MIB信息和/或系统信息块SIB1信息；或
    所述系统信息为除SIB10、SIB11、SIB12、SIB14以外的其它SIB信息；或
    所述系统信息为除SIB1、SIB10、SIB11、SIB12、SIB14以外的其它SIB信息、MIB信息、SIB1信息中的一种或多种。
  15. 一种信号发送装置，其特征在于，应用于网络设备，包括处理单元和发送单元，其中：
    所述处理单元用于确定第一信号和第二信号，所述第一信号和所述第二信号不相同，所述第一信号用于指示系统信息在设定时长内发生了变化，所述第二信号用于指示所述系统信息在所述设定时长内未发生变化；
    所述发送单元用于在所述系统信息发生变化后的所述设定时长内发送所述处理单元确定的第一信号，在所述系统信息发生变化后的时长达到所述设定时长后发送所述处理单元确定的第二信号；
    或者
    所述处理单元用于确定第一信号和第二信号，所述第一信号和所述第二信号不相同，所述第一信号用于指示终端读取系统信息，所述第二信号用于指示终端不需要读取系统信息；
    所述发送单元用于在指示终端读取系统信息后的设定时长内发送所述处理单元确定的第一信号，在指示终端读取系统信息后的时长达到所述设定时长后发送所述处理单元确定的第二子信号。
  16. 根据权利要求15所述的装置，其特征在于，所述处理单元具体用于采用如下方式确定第一信号和第二信号：
    根据第三信号生成所述第一信号，并根据生成所述第一信号的所述第三信号生成所述第二信号。
  17. 根据权利要求16所述的装置，其特征在于，所述处理单元采用如下方式中的至少一种方式分别生成所述第一信号和所述第二信号：
    加扰所述第三信号；
    对所述第三信号取共轭；
    对所述第三信号的符号和/或子载波进行顺序调整；
    其中，生成所述第一信号所采用的加扰方式和生成所述第二信号所采用的加扰方式不同；或，
    所述第一信号采用对所述第三信号取共轭方式生成，所述第二信号采用对所述第三信 号不取共轭方式生成；或者所述第二信号采用对所述第三信号取共轭方式生成，所述第一信号采用对所述第三信号不取共轭方式生成；或，
    生成所述第一信号所采用的顺序调整方式和生成所述第二信号所采用的顺序调整方式不同。
  18. 根据权利要求16或17所述的装置，其特征在于，所述第三信号为同步信号或唤醒信号WUS。
  19. 根据权利要求18所述的装置，其特征在于，所述WUS包括用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的第一WUS，以及用于指示终端不需要检测MPDCCH的第二WUS；
    所述发送单元具体采用如下方式在所述系统信息发生变化后的所述设定时长内发送所述第一信号：
    在所述系统信息发生变化后的所述设定时长内发送根据第一WUS生成的第一信号，所述根据第一WUS生成的第一信号用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化；或，
    在所述系统信息发生变化后的所述设定时长内发送根据第二WUS生成的第一信号，所述根据第二WUS生成的第一信号用于指示终端不需要检测MPDCCH且系统信息在设定时长内发生了变化；
    所述发送单元具体采用如下方式在所述系统信息发生变化后的时长达到所述设定时长后发送所述第二信号：
    在所述系统信息发生变化后的时长达到所述设定时长后发送根据第一WUS生成的第二信号，所述根据第一WUS生成的第二信号用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化；或，
    在所述系统信息发生变化后的时长达到所述设定时长后发送根据第二WUS生成的第二信号，所述根据第二WUS生成的第二信号用于指示终端不需要检测MPDCCH且系统信息在所述设定时长内未发生变化；
    所述发送单元具体采用如下方式在指示终端读取系统信息后的设定时长内发送所述第一信号：
    在指示终端读取系统信息后的设定时长内发送根据第一WUS生成的第一信号，所述根据第一WUS生成的第一信号用于指示终端检测MPDCCH且指示终端读取系统信息；或，在指示终端读取系统信息后的设定时长内发送根据第二WUS生成的第一信号，所述根据第二WUS生成的第一信号用于指示终端不需要检测MPDCCH且指示终端读取系统信息；
    所述发送单元具体采用如下方式在指示终端读取系统信息后的时长达到所述设定时长后发送所述第二信号：
    在指示终端读取系统信息后的时长达到所述设定时长后发送根据第一WUS生成的第二信号，所述根据第一WUS生成的第二信号用于指示终端检测MPDCCH且指示终端不需要读取系统信息；或，
    在指示终端读取系统信息后的时长达到所述设定时长后发送根据第二WUS生成的第二信号，所述根据第二WUS生成的第二信号用于指示终端不需要检测MPDCCH且指示终端不需要读取系统信息。
  20. 根据权利要求18所述的装置，其特征在于，所述WUS为用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的WUS；
    所述发送单元具体采用如下方式在所述系统信息发生变化后的所述设定时长内发送所述第一信号：
    在所述系统信息发生变化后的所述设定时长内发送根据所述WUS生成的第一信号，根据所述WUS生成的第一信号用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化；
    所述发送单元具体采用如下方式在所述系统信息发生变化后的时长达到所述设定时长后发送所述第二信号：
    在所述系统信息发生变化后的时长达到所述设定时长后发送根据所述WUS生成的第二信号，根据所述WUS生成的第二信号用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化；
    所述发送单元具体采用如下方式在指示终端读取系统信息后的设定时长内发送所述第一信号：
    在指示终端读取系统信息后的设定时长内发送根据所述WUS生成的第一信号，根据所述WUS生成的第一信号用于指示终端检测MPDCCH且指示终端读取系统信息；
    所述发送单元具体采用如下方式在指示终端读取系统信息后的时长达到所述设定时长后发送所述第二信号：
    在指示终端读取系统信息后的时长达到所述设定时长后发送根据所述WUS生成的第二信号，根据所述WUS生成的第二信号用于指示终端检测MPDCCH且指示终端不需要读取系统信息。
  21. 根据权利要求15所述的装置，其特征在于，所述系统信息为主信息块MIB信息；或
    所述系统信息为MIB信息和/或系统信息块SIB1信息；或
    所述系统信息为除SIB10、SIB11、SIB12、SIB14以外的其它SIB信息；或
    所述系统信息为除SIB1、SIB10、SIB11、SIB12、SIB14以外的其它SIB信息、MIB信息、SIB1信息中的一种或多种。
  22. 一种信号接收装置，其特征在于，应用于终端，包括接收单元和处理单元，其中：
    所述接收单元用于接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号，所述第一信号用于指示系统信息在设定时长内发生了变化；所述处理单元用于依据所述接收单元接收到的第一信号确定系统信息在设定时长内发生了变化；或者
    所述接收单元用于接收网络设备在系统信息发生变化后的时长达到设定时长后发送的第二信号，所述第二信号用于指示系统信息在所述设定时长内未发生变化，所述处理单元用于依据所述接收单元接收的第二信号确定系统信息在所述设定时长内未发生变化；或者
    所述接收单元用于接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号，所述第一信号用于指示终端读取系统信息，所述处理单元用于依据所述接收单元接收的第一信号确定需要读取系统信息；或者
    所述接收单元用于接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号，所述第二信号用于指示终端不需要读取系统信息，所述处理单元用于依 据所述接收单元接收的第二信号确定不需要读取系统信息；
    其中，所述第一信号和所述第二信号不相同。
  23. 根据权利要求22所述的装置，其特征在于，所述第一信号根据第三信号生成，且所述第二信号根据生成所述第一信号的所述第三信号生成。
  24. 根据权利要求23所述的装置，其特征在于，所述第一信号和所述第二信号分别采用如下方式中的至少一种方式生成：
    加扰所述第三信号；
    对所述第三信号取共轭；
    对所述第三信号的符号和/或载波进行顺序调整；
    其中，生成所述第一信号所采用的加扰方式和生成所述第二信号所采用的加扰方式不同；或，
    所述第一信号采用对所述第三信号取共轭方式生成，所述第二信号采用对所述第三信号不取共轭方式生成；或者所述第二信号采用对所述第三信号取共轭方式生成，所述第一信号采用对所述第三信号不取共轭方式生成；或，
    生成所述第一信号所采用的顺序调整方式和生成所述第二信号所采用的顺序调整方式不同。
  25. 根据权利要求23或24所述的装置，其特征在于，所述第三信号为同步信号或唤醒信号WUS。
  26. 根据权利要求25所述的装置，其特征在于，所述WUS包括用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的第一WUS，以及用于指示终端不需要检测MPDCCH的第二WUS；
    所述处理单元，还用于：
    在所述接收单元接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号之后，根据所述第一信号确定需要检测MPDCCH，所述第一信号根据所述第一WUS生成，并用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化；或者
    在所述接收单元接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号之后，根据所述第一信号确定不需要检测MPDCCH，所述第一信号根据所述第二WUS生成，并用于指示终端不需要检测MPDCCH且系统信息在设定时长内发生了变化；或者
    在所述接收单元接收网络设备在系统信息发生变化后的时长达到所述设定时长后发送的第二信号之后，根据所述第二信号确定需要检测MPDCCH，所述第二信号根据所述第一WUS生成，并用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化；或者
    在所述接收单元接收网络设备在系统信息发生变化后的时长达到所述设定时长后发送的第二信号之后，根据所述第二信号确定不需要检测MPDCCH，所述第二信号根据所述第二WUS生成，并用于指示终端不需要检测MPDCCH且系统信息在所述设定时长内未发生变化；或者
    在所述接收单元接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号之后，根据所述第一信号确定需要检测MPDCCH，所述第一信号根据所述第一WUS生成，并用于指示终端检测MPDCCH且指示终端读取系统信息；或者，
    在所述接收单元接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号之后，根据所述第一信号确定不需要检测MPDCCH，所述第一信号根据所述第二WUS生成，并用于指示终端不需要检测MPDCCH且指示终端读取系统信息；或者
    在所述接收单元接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号之后，根据所述第二信号确定需要检测MPDCCH，所述第二信号根据所述第一WUS生成，并用于指示终端检测MPDCCH且指示终端不需要读取系统信息；或者，
    在所述接收单元接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号之后，根据所述第二信号确定不需要检测MPDCCH，所述第二信号根据所述第二WUS生成，并用于指示终端不需要检测MPDCCH且指示终端不需要读取系统信息。
  27. 根据权利要求25所述的装置，其特征在于，所述WUS为用于指示终端检测机器类型通信的物理下行控制信道MPDCCH的WUS；
    所述处理单元还用于：
    在所述接收单元接收网络设备在所述系统信息发生变化后的所述设定时长内发送的第一信号之后，根据所述第一信号确定需要检测MPDCCH，所述第一信号根据所述WUS生成，并用于指示终端检测MPDCCH且系统信息在设定时长内发生了变化；或者，
    在所述接收单元接收网络设备在系统信息发生变化后的时长达到设定时长后发送的第二信号之后，根据所述第二信号确定需要检测MPDCCH，所述第二信号根据所述WUS生成，并用于指示终端检测MPDCCH且系统信息在所述设定时长内未发生变化；或者，
    在所述接收单元接收网络设备在指示终端读取系统信息后的设定时长内发送的第一信号之后，根据所述第一信号确定需要检测MPDCCH，所述第一信号根据所述WUS生成，并用于指示终端检测MPDCCH且指示终端读取系统信息；或者，
    在所述接收单元接收网络设备在指示终端读取系统信息后的时长达到设定时长后发送的第二信号之后，根据所述第二信号确定需要检测MPDCCH，所述第二信号根据所述WUS生成，并用于指示终端检测MPDCCH且指示终端不需要读取系统信息。
  28. 根据权利要求22所述的装置，其特征在于，所述系统信息为主信息块MIB信息；或
    所述系统信息为MIB信息和/或系统信息块SIB1信息；或
    所述系统信息为除SIB10、SIB11、SIB12、SIB14以外的其它SIB信息；或
    所述系统信息为除SIB1、SIB10、SIB11、SIB12、SIB14以外的其它SIB信息、MIB信息、SIB1信息中的一种或多种。
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Publication number Priority date Publication date Assignee Title
CN101686580A (zh) * 2008-09-24 2010-03-31 华为技术有限公司 一种获取系统消息的方法、装置和系统
US20140293901A1 (en) * 2013-03-28 2014-10-02 Tejas Networks Limited Method and system for system information acquisition optimization
CN105518628A (zh) * 2013-08-22 2016-04-20 富士通株式会社 机器对机器无线接入系统中的系统信息广播
CN107211346A (zh) * 2015-05-14 2017-09-26 株式会社Kt 用于改变系统信息的方法以及其设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101686580A (zh) * 2008-09-24 2010-03-31 华为技术有限公司 一种获取系统消息的方法、装置和系统
US20140293901A1 (en) * 2013-03-28 2014-10-02 Tejas Networks Limited Method and system for system information acquisition optimization
CN105518628A (zh) * 2013-08-22 2016-04-20 富士通株式会社 机器对机器无线接入系统中的系统信息广播
CN107211346A (zh) * 2015-05-14 2017-09-26 株式会社Kt 用于改变系统信息的方法以及其设备

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