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WO2018201479A1 - Procédé d'indication d'informations, procédé de détection d'informations et dispositif associé, et système de communication - Google Patents

Procédé d'indication d'informations, procédé de détection d'informations et dispositif associé, et système de communication Download PDF

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Publication number
WO2018201479A1
WO2018201479A1 PCT/CN2017/083327 CN2017083327W WO2018201479A1 WO 2018201479 A1 WO2018201479 A1 WO 2018201479A1 CN 2017083327 W CN2017083327 W CN 2017083327W WO 2018201479 A1 WO2018201479 A1 WO 2018201479A1
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WIPO (PCT)
Prior art keywords
information
pbch
indication information
sequence
synchronization signal
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PCT/CN2017/083327
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English (en)
Chinese (zh)
Inventor
蒋琴艳
周华
王昕�
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Fujitsu Ltd
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Fujitsu Ltd
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Priority to PCT/CN2017/083327 priority Critical patent/WO2018201479A1/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the present application relates to the field of communications, and in particular, to an information indication method, an information detection method and apparatus thereof, and a communication system.
  • the user equipment obtains a system frame number (SFN) by receiving a physical broadcast channel (PBCH), where the user equipment can obtain the SFN through a master information block (MIB) carried in the PBCH.
  • SFN system frame number
  • PBCH physical broadcast channel
  • MIB master information block
  • the system frame at the location is indicated.
  • the inventors of the present application have found that in the existing method for detecting SFN, the method for detecting SFN is complicated due to the need for blind detection of the PBCH, and the implementation complexity of the user equipment is increased.
  • An embodiment of the present application provides an information indication method, an information detection method, a device thereof, and a communication system, and determines, according to indication information indicating a location of a synchronization block (SS block), a system frame indicating a system frame in which the PBCH is located. At least a portion of the information indicating the information simplifies the method of detecting the SFN and reduces the implementation complexity of the user equipment.
  • SS block synchronization block
  • an information indicating apparatus comprising:
  • a sending unit configured to send, to the user equipment, first indication information indicating a location of the synchronization signal block in a synchronization signal transmission period, wherein the first indication information is used to determine that a system frame in which the physical broadcast channel is located is in a system At least a portion of information of the second indication information of the location within the frame transmission period.
  • an information detecting apparatus comprising:
  • a receiving unit which receives the position of the indication synchronization signal block sent by the network device during the synchronization signal transmission period
  • the first indication information wherein the first indication information is used to determine at least a part of information of the second indication information indicating a location of a system frame in which the physical broadcast channel is located in a system frame transmission period.
  • a communication system comprising: a network device and a user equipment, the network device comprising the information indicating device according to the first aspect of the above embodiment,
  • the user equipment includes the information detecting apparatus according to the second aspect of the above embodiment.
  • the beneficial effects of the embodiment of the present application are: according to the embodiment, the at least part of the information indicating the indication information of the system frame in which the PBCH is located is determined according to the indication information indicating the location of the synchronization signal block, and the method for detecting the SFN is simplified. And reduce the implementation complexity of the user equipment.
  • FIG. 1 is a schematic diagram of a communication system according to Embodiment 1 of the present application.
  • FIG. 2 is a schematic diagram of an information indication method according to Embodiment 1 of the present application.
  • FIG. 3 is a schematic diagram of a network device transmitting a synchronization signal and a PBCH in Embodiment 1 of the present application;
  • Embodiment 4 is a schematic diagram of a signal cycle relationship in Embodiment 1 of the present application.
  • Embodiment 5 is a flowchart of the information detecting method in Embodiment 2 of the present application.
  • FIG. 6 is a schematic diagram of an information indicating apparatus according to Embodiment 3 of the present application.
  • FIG. 7 is a schematic structural diagram of a network device according to Embodiment 4 of the present application.
  • FIG. 8 is a schematic diagram showing the structure of an information detecting apparatus according to Embodiment 5 of the present application.
  • FIG. 9 is a schematic diagram showing the structure of a user equipment according to Embodiment 6 of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements from the title, but do not indicate the spatial arrangement or chronological order of the elements, and these elements should not be used by these terms. Limited.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the terms “comprising,” “comprising,” “having,” or “an” are used to distinguish different elements from the title, but do not indicate the spatial arrangement or chronological order of the elements, and these elements should not be used by these terms. Limited.
  • the term “and/or” includes any and all combinations of one or more of the associated listed terms.
  • the term “communication network” or “wireless communication network” may refer to a network that conforms to any communication standard such as Long Term Evolution (LTE), Enhanced Long Term Evolution (LTE-A, LTE- Advanced), Wideband Code Division Multiple Access (WCDMA), High-Speed Packet Access (HSPA), and the like.
  • LTE Long Term Evolution
  • LTE-A Enhanced Long Term Evolution
  • WCDMA Wideband Code Division Multiple Access
  • HSPA High-Speed Packet Access
  • the communication between devices in the communication system may be performed according to any phase of the communication protocol, and may include, for example but not limited to, the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G, and future. 5G, New Radio (NR), etc., and/or other communication protocols currently known or to be developed in the future.
  • the term "network device” refers to, for example, a device in a communication system that accesses a terminal device to a communication network and provides a service for the terminal device.
  • the network device may include, but is not limited to, a device: a base station (BS, a base station), an access point (AP, an Access Point), a transmission and reception point (TRP), a broadcast transmitter, and a mobility management entity (MME, Mobile). Management Entity), gateway, server, Radio Network Controller (RNC), Base Station Controller (BSC), and so on.
  • BS base station
  • AP access point
  • TRP transmission and reception point
  • MME mobility management entity
  • Management Entity gateway
  • server Radio Network Controller
  • BSC Base Station Controller
  • the base station may include, but is not limited to, a Node B (NodeB or NB), an evolved Node B (eNodeB or eNB), and a 5G base station (gNB), and the like, and may further include a Remote Radio Head (RRH). , Remote Radio Unit (RRU), relay or low power node (eg femto, pico, etc.).
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • base station may include some or all of their functions, and each base station may provide communication coverage for a particular geographic area.
  • the term "cell” can refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "user equipment” (UE) or “terminal equipment” (TE) refers to, for example, a device that accesses a communication network through a network device and receives a network service.
  • the user equipment may be fixed or mobile, and may also be referred to as a mobile station (MS, Mobile Station), a terminal, a subscriber station (SS, Subscriber Station), an access terminal (AT, Access Terminal), a station, and the like.
  • the user equipment may include, but is not limited to, a cellular phone (Cellular Phone), a personal digital assistant (PDA, Personal Digital Assistant), a wireless modem, a wireless communication device, a handheld device, a machine type communication device, a laptop computer, Cordless phones, smart phones, smart watches, digital cameras, and more.
  • a cellular phone Cellular Phone
  • PDA Personal Digital Assistant
  • wireless modem Wireless Fidelity
  • a wireless communication device a handheld device
  • a machine type communication device a laptop computer
  • Cordless phones smart phones, smart watches, digital cameras, and more.
  • the user equipment may also be a machine or device that performs monitoring or measurement, and may include, but is not limited to, a Machine Type Communication (MTC) terminal, In-vehicle communication terminal, device to device (D2D, Device to Device) terminal, machine to machine (M2M, Machine to Machine) terminal, and the like.
  • MTC Machine Type Communication
  • D2D Device to Device
  • M2M Machine to Machine
  • FIG. 1 is a schematic diagram of a communication system according to an embodiment of the present application, schematically illustrating a case where a user equipment and a network device are taken as an example.
  • the communication system 100 may include a network device 101 and a user equipment 102 (for simplicity)
  • Figure 1 only uses one user equipment as an example.
  • an existing service or a service that can be implemented in the future can be performed between the network device 101 and the user equipment 102.
  • these services include, but are not limited to, enhanced mobile broadband (eMBB), massive machine type communication (mMTC), and high reliability low latency communication (URLLC, Ultra-Reliable and Low- Latency Communication), and more.
  • eMBB enhanced mobile broadband
  • mMTC massive machine type communication
  • URLLC Ultra-Reliable and Low- Latency Communication
  • the user equipment 102 can transmit data to the network device 101, for example, using an authorized or unauthorized transfer mode.
  • the network device 101 can receive data sent by one or more user equipments 102 and feed back information to the user equipment 102, such as acknowledgment ACK/non-acknowledgement NACK information, etc., and the user equipment 102 can confirm the end of the transmission process according to the feedback information, or can further Perform new data transfer or data retransmission.
  • the network device 101 may send information related to system information to the user equipment 102, and the user equipment 102 detects the received information to implement downlink synchronization, and cooperates with the network device 101. establish connection.
  • a network device in a communication system is used as a transmitting end and a user device is used as a receiving end.
  • the present application is not limited thereto, and the transmitting end and/or the receiving end may be other devices.
  • the present application is applicable not only to signal transmission between a network device and a user equipment, but also to signal transmission between two user equipments.
  • Embodiment 1 of the present application provides an information indication method, which is performed by a network device.
  • FIG. 2 is a schematic diagram of an information indication method according to this embodiment. As shown in FIG. 2, the method includes:
  • the first indication information is used to determine at least part of information of the second indication information indicating a location of a system frame (System Frame) where the physical broadcast channel (PBCH) is located in a system frame transmission period.
  • System Frame system frame
  • PBCH physical broadcast channel
  • At least a part of information indicating the indication information of the system frame in which the PBCH is located can be determined according to the indication information indicating the position of the synchronization signal block (SS block), thereby simplifying the detection of the SFN.
  • the method reduces the implementation complexity of the user equipment.
  • the network device 101 may use a plurality of beams to transmit a synchronization signal and a PBCH in a time division manner, wherein the synchronization signal may include a Primary Synchronization Signal (PSS) and an auxiliary signal. Secondary Synchronization Signal (SSS).
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • FIG. 3 is a schematic diagram of a network device transmitting a synchronization signal and a PBCH in this embodiment.
  • the axis t in Fig. 3 represents time.
  • the network device 101 can periodically transmit a synchronization signal according to a SS burst set period.
  • one or more synchronization signal blocks can be transmitted in time series (SS). Block), wherein different SS blocks may be transmitted with different numbers and/or different directions of beams 302.
  • SS time series
  • eight sync signal blocks can be transmitted in time in each sync signal transmission period, and the length M of the sync signal transmission period can be, for example, 20 ms.
  • Figure 3 also shows the time L, L of a system frame, for example, may be 10 ms.
  • Fig. 4 is a schematic diagram showing the relationship of signal periods in the embodiment.
  • the axis t in Fig. 4 represents time.
  • the number of common system frames 401 is P in time series, and the value of P may be, for example, 1024; each system frame has its corresponding number, that is, system frame.
  • No. SFN; the length of each system frame is L, L can be, for example, 10 ms; the length of the SS burst set period is M, and M can be, for example, 5 ms, 10 ms, 20 ms, 40 ms, 80 ms, or 160 ms.
  • the Transmission Time Interval (TTI) of the Physical Broadcast Channel is K, and K may be, for example, 80 ms.
  • a transmission time interval of one physical broadcast channel (PBCH) may cover a plurality of system frames, and a SS burst set period may cover a transmission time of one or more system frames, or only Can correspond to the transmission time of 1/4 or 1/2 system frames.
  • P, L, M, and K reference may be made to the description about FIG. 4, but the embodiment may not be limited thereto, and the P, L, M, and K are taken. The value can be other values.
  • the network device 101 may send first indication information corresponding to the synchronization signal block, where the first indication information is used to indicate a position of the synchronization signal block in a synchronization signal transmission period.
  • the first indication information may be separately sent with the synchronization signal block, or at least a part of the first indication information may be included in the synchronization signal block and transmitted together with the synchronization signal block.
  • the first indication information may include at least two pieces of information.
  • at least two pieces of information in the first indication information may be indicated by using at least two pieces of information: a signal sequence, a physical broadcast channel (PBCH) load, and information related to a PBCH coded modulation mode. , signal sequence resources, and information related to the coding method of the signal sequence.
  • the method of indicating any one of the at least two pieces of information in the first indication information according to any one of the foregoing information may be referred to any one of the foregoing information in the following embodiments.
  • To indicate a description of part of the information in the second indication information wherein It is necessary to replace part of the second indication information in the description described later with any part of the at least two pieces of information in the first indication information.
  • the at least two pieces of information in the first indication information may also be indicated based on other information.
  • the first indication information may also be a complete information, and a piece of information enumerated in this paragraph may be used to indicate the complete information.
  • a signal sequence may be used, such as SSS.
  • a sequence or extended SSS sequence to indicate the complete information.
  • the position of the synchronization signal block in the synchronization signal transmission period may be characterized, for example, by a SS block index, which may be, for example, the synchronization signal block.
  • the first indication information may indicate a synchronization block index (SS block index), thereby indicating a position of the synchronization signal block in the synchronization signal transmission period, for example, where the first indication information includes two parts of information. In the case, some of the information is used to indicate the upper bits of the SS block index, another part of the information is used to indicate the lower bits of the SS block index, or part of the information is used to indicate the group index of the packet, and another part of the information is used. Indicates the index of the SS block in the packet.
  • SS block index synchronization block index
  • the position of the synchronization signal block in the synchronization signal transmission period may also be characterized by other forms of information, and the first indication information may indicate the other form of information, thereby indicating that the synchronization signal block is in the The position within the synchronization signal transmission period.
  • the first indication information may be used to determine at least part of information of the second indication information, where the second indication information is used to indicate a system frame in which a physical broadcast channel (PBCH) in the synchronization signal block is located (System) Frame) The position within the system frame transmission period.
  • the first indication information may indicate a location of the synchronization signal block within a synchronization signal transmission period, and the location may be used to determine at least a portion of the information of the second indication information.
  • the second indication information may be, for example, a system frame number (SFN) of a system frame in a system frame transmission period, and the at least part of the second indication information may be, for example, a system. Information on a few low bits of the frame number.
  • the at least part of the information may also be information on other bits of the system frame number, and the remaining part of the second indication information except the at least part of the information may be, for example, the remaining bits of the system frame number.
  • the second indication letter The information may not be limited to the system frame number, but may be other information.
  • the first indication indicating that the second information is able to determine at least a portion of the maximum number of bits of information N max may be determined according to the sync signal transmission period, e.g., the maximum number of bits N max L ratio can be time synchronization signal transmission period M and a system frame correlation, may be determined such that the maximum number of bits of the N max refer to formula (1):
  • the at least part of the information of the second indication information may be all of the second indication information, or may be part of the second indication information.
  • the method of FIG. 2 may further include the following step 202:
  • Step 202 Send, to the user equipment, information indicating the remaining part of the second indication information except the at least part of the information.
  • the first indication information and the information may be sent to the user equipment at different times, that is, the first indication information and the sending time of the information may be in a sequential sequence; An indication message and the information can also be sent simultaneously.
  • the information for indicating the remaining part of the second indication information other than the at least part of the information may be at least one of the following: a physical broadcast channel (PBCH) payload, a signal sequence, Information related to the PBCH coded modulation method, signal sequence resources, and information related to the signal sequence coding method.
  • PBCH physical broadcast channel
  • only information related to the PBCH coded modulation mode may be used to indicate the remaining part of the information; or, the physical broadcast channel (PBCH) payload may be used to indicate the remaining part of the information; or A Physical Broadcast Channel (PBCH) payload may be employed to indicate a portion of the remaining portion of information, and one of the information listed above except for a Physical Broadcast Channel (PBCH) payload is used. Or a combination of two or more to indicate another part of the information in the remaining part of the information.
  • PBCH Physical Broadcast Channel
  • the at least part of the information of the second indication information is determined by the first indication information, and the remaining part of the second indication information is only indicated by a physical broadcast channel (PBCH) payload.
  • PBCH physical broadcast channel
  • the second indication information is, for example, an SFN, and the number of bits of the second indication information is, for example, 10.
  • the number of bits of the bit of the SFN determined by the first indication information which may be the maximum number of bits N max of the bit of the SFN determined by the first indication information, is listed. It can also be smaller than the maximum number of bits N max .
  • the number of bits of the remaining bits of the SFN indicated by the PBCH payload is listed.
  • the at least part of the information of the second indication information is determined by the first indication information, and a part of the information of the remaining part of the second indication information is indicated by a (PBCH) payload, and the rest Another part of the information in the information is indicated by at least one of a signal sequence, information related to the PBCH coded modulation mode, signal sequence resources, and other information related to the signal sequence coding mode.
  • PBCH PBCH
  • the number of bits of the bit of the SFN determined by the first indication information which may be the maximum number of bits N max of the bit of the SFN determined by the first indication information, is listed. It can also be smaller than the maximum number of bits N max .
  • the number of bits of a part of the remaining bits of the SFN indicated by the PBCH payload is listed, and the number of bits of the other part of the remaining bits of the SFN indicated by the other information is listed. .
  • the bit number of the bit indicated by the PBCH payload may be different for different synchronization signal transmission periods M, and the embodiment may not be limited thereto.
  • At least a part of the remaining part of the information may be indicated by a Physical Broadcast Channel (PBCH) payload, and a different SS burst set period configured for the network device.
  • PBCH Physical Broadcast Channel
  • M The bit number of at least a part of the information of the remaining part of information indicated by the physical broadcast channel (PBCH) load may be the same.
  • At least a part of the information of the remaining part information indicated by the physical broadcast channel (PBCH) load may be, for example, information of a high bit of the second indication information, and a second indication determined by the first indication information. At least a part of the information of the information may be, for example, information of a low bit of the second indication information; and, if the information of the remaining intermediate bits of the second indication information is not indicated, the other information is adopted. And indicating information on the remaining intermediate bits of the second indication information.
  • the present embodiment is not limited thereto, and the above-described correspondence relationship between the high bit, the low bit, and the intermediate bit and the information for indicating each bit may not be limited thereto.
  • the bit number of at least a portion of the remaining information indicated by the physical broadcast channel (PBCH) load may be determined according to a Transmission Time Interval (TTI) of a Physical Broadcast Channel (PBCH).
  • TTI Transmission Time Interval
  • the high N1 bit indicated by the physical broadcast channel (PBCH) load can be determined according to the following equations (2), (3),
  • N represents the total number of bits of the second indication information
  • P represents the total number of system frames transmitted in time series within one transmission period of the system frame.
  • the bit number N 2 of the at least part of the information of the second indication information that can be determined by the first indication information may be determined according to the following formula (4), and the N 2 bits may be, for example, the The lower N 2 bits of the second indication:
  • N max can be obtained according to the above formula (1).
  • the other information may be used to indicate information on the remaining intermediate bits of the second indication information, for example,
  • the number of bits N 3 indicated by the other information can be determined according to the following formula (5):
  • N 3 NN 1 -N 2 ( 5)
  • N 1 , N 2 , N 3 can be as shown in Table 3 below. Show:
  • the payload of the PBCH of the SS block sent by the network device includes 7-bit information, which is used as the upper 7-bit information of the SFN, and is used to indicate the location of the PBCH TTI in which the PBCH is located in one transmission period of the system frame; within the PBCH TTI range.
  • the PBCHs in different SS burst sets are scrambled with different scrambling sequences, that is, the scrambling sequence indicates the location of the SS burst set in which the SS block is located in the PBCH TTI, that is, the SFN can be indicated by the scrambling sequence.
  • the middle 2-bit information which can indicate the location of the SS burst set in which the SS block is located in the PBCH TTI; the first indication information corresponding to the SS block indicates the location of the SS block in the SS burst set, such as SS Block index, the position of the SS block in the SS burst set can determine which frame in the SS burst set period of the system frame where the SS block is located, for example, one SS burst set in FIG.
  • the position of the SS block in the SS burst set can determine which one of the two system frames corresponds to the SS block, that is, the first finger corresponding to the SS block Information can be used for a minimum of information to determine the SFN.
  • At least a portion of the remaining portion of information indicated by a physical broadcast channel (PBCH) load may be determined according to a predetermined period in a set of SS burst set periods configurable by the network device.
  • the bit number N 1 of the information which may be, for example, a maximum value M max in the set of configurable SS burst set periods M, for example, the set of M is ⁇ 5, 10, 20, In the case of 40, 80, 160 ⁇ ms, M max may be 160, and N 1 may be determined according to the following formula (6):
  • N 1 , N 2 , and N 3 can be as shown in Table 4 below.
  • the predetermined period may be a default value, for example, M may be configured default set of M transmit periodic synchronization signal (SS burst set period), for example, is set at M ⁇ 5,10,20,40 , 80, 160 ⁇ ms in the case where, M default may be a default value set in advance in the set M, and can be determined by the following formula (7) N 1:
  • the information indicating method may further include:
  • Step 203 Configure the first indication information and a mapping relationship between the information and the second indication information.
  • the information may include a physical broadcast channel (PBCH) payload, a signal sequence, information related to a PBCH coded modulation mode, a signal sequence resource, and information related to a signal sequence coding mode.
  • the signal sequence may include a secondary synchronization signal (SSS) sequence, and/or a third synchronization signal (Tertiary Synchronization Signal, TSS), and/or a demodulation reference signal (DMRS) sequence; and the PBCH coding modulation method Relevant information includes the scrambling sequence of the PBCH, and/or the cyclic shift employed by the bit information contained in the PBCH, and/or the CRC mask of the cyclic redundancy check (CRC) carried by the scrambled PBCH (CRC mask)
  • the signal sequence resource includes a frequency domain offset and/or a time domain offset of the time-frequency resource occupied by the DMRS sequence; and the information related to the signal sequence coding mode includes an orthogonal cover code (OC
  • the network device may pre-configure the first indication information, and the foregoing information, such as a physical broadcast channel (PBCH) payload, a signal sequence (SSS sequence, and/or TSS sequence, and/or DMRS sequence).
  • PBCH physical broadcast channel
  • SSS sequence signal sequence
  • TSS sequence TSS sequence
  • DMRS sequence DMRS sequence
  • PBCH Physical Broadcast Channel
  • CRC mask of the remainder check CRC
  • signal sequence resources frequency domain offset and/or time domain offset of resources occupied by the DMRS sequence
  • information related to the coding mode of the signal sequence orthogonality of the DMRS sequence
  • a mapping relationship between the coverage code OCC for example, information on a high bit, a low bit or an intermediate bit of the SFN
  • the UE determines, according to the received first indication information, the foregoing information, and the mapping relationship, each part of the information indicating the SF location, and determines, according to the part information, the location of the SF in the SF transmission period.
  • the second indication information may be an SFN
  • the partial information may be information on a partial bit of the SFN.
  • the embodiment may not be limited thereto, and the second indication information may also be other information.
  • mapping relationship between the SSS sequence and the information on the partial bits of the SFN For example, when the Physical Cell Identifier (PCI) is 1, the mapping relationship between the SSS sequence and the information on the partial bits of the SFN is as shown in Table 8. Show.
  • PCI Physical Cell Identifier
  • the user equipment can determine the information on the partial bits of the SFN according to the above mapping relationship and the detected SSS sequence.
  • the manner of indicating the information on the partial bits of the corresponding SFN by using the TSS sequence may be similar to the manner of indicating the information on the partial bits of the corresponding SFN by the SSS sequence, which is not described in this embodiment. .
  • the different partial bits of the SFN are indicated by different demodulation reference signal (DMRS) sequences.
  • DMRS demodulation reference signal
  • the mapping relationship between the DMRS sequence and the partial bits of the SFN needs to be pre-configured. For example, the mapping relationship between the DMRS sequence and the SFN bit is as follows: 9 is shown.
  • l indicates the information (0 to n) on the partial bits of the SFN indicated by the sequence, which is different.
  • m 0, 1, ..., L DMRS -1
  • L DMRS represents the length of the DMRS sequence
  • M, N and L DMRS are both positive integers.
  • the user equipment can determine the information on the partial bits of the SFN according to the above mapping relationship and the detected DMRS sequence.
  • the mapping relationship between the DMRS sequence and the information on the partial bits of the SFN can also be configured by the generation of the DMRS sequence, that is, the DMRS sequence is generated based on at least the partial information of the SFN that needs to be indicated.
  • the mapping relationship between the DMRS sequence and the part of the SFN indicated by it is determined.
  • the DMRS sequence generated based on the SFN is a pseudo-random sequence, it may be generated by the following method (8):
  • x 1 (n+31) (x 1 (n+3)+x 1 (n)) mod2
  • x 2 (n+31) (x 2 (n+3)+x 2 (n+2)+x 2 (n+1)+x 2 (n)) mod2
  • N C 1600
  • the initial value of the second m sequence is
  • the initial value of the second m sequence is, for example:
  • the initial value of the second m sequence is, for example,
  • the initial value of the second m sequence is, for example,
  • the UE can determine 1 based on the detected DMRS sequence based on the above formula (9), (10) or (11), thereby determining information on partial bits of the SFN.
  • PBCH Physical Broadcast Channel
  • the information on the different partial bits of the SFN is indicated by the different PBCH load, where the PBCH load indicates the bit information included in the PBCH, and the mapping relationship between the bit information included in the PBCH and the information on the SFN partial bits needs to be pre-configured.
  • the mapping relationship between the bit information included in the PBCH and the information on the partial bits of the SFN can be as shown in Table 10 below.
  • the bit information included in the PBCH is in one-to-one correspondence with the information on the partial bits of the SFN, and the UE can determine the information on the partial bits of the SFN according to the mapping relationship and the received load of the PBCH.
  • the information on the partial bits of different SFNs is indicated by different scrambling sequences of the PBCH, wherein the scrambling sequence of the PBCH can be generated based on different manners, and different scrambling sequences and partial bits of the SFN need to be pre-configured.
  • the UE can determine the information on different bits of the SFN by detecting the scrambling sequence of the PBCH according to the above mapping relationship, wherein the generating method of the scrambling sequence is similar to the generating manner of the DMRS sequence, where Repeat again.
  • Different cyclic shifts used by the bit information contained in the PBCH indicate different partial bits of the SFN, and different mappings of cyclic shifts and SFN bits need to be configured in advance. Table 11 below is included in the PBCH. The mapping between the different cyclic shifts used by the bit information and the information on the partial bits of the SFN.
  • the PBCH may include Z+1 bits, and the cyclic shift step size may be, for example, 1, so there is Z+1 Different bit cyclic shifts may be used to indicate information on partial bits of different SFNs, where Z may be equal to or greater than N-1, and the UE adopts a cyclic shift according to the above mapping relationship and the received PBCH.
  • the bits determine the information on a portion of the SFN.
  • the CRC mask of the different cyclic redundancy check (CRC) carried by the scrambling PBCH indicates information on partial bits of different SFNs, wherein when the SS block is transmitted, the corresponding CRC mask is selected according to the SFN.
  • CRC cyclic redundancy check
  • the UE blindly checks the CRC mask used by the CRC of the transport block carried by the PBCH in the SS block to determine information on a part of the SFN.
  • Different time-frequency resource positions occupied by the DMRS sequence indicate information on partial bits of different SFNs, wherein the time-frequency resource position can be represented by a frequency domain offset of the time-frequency resource, and the DMRS needs to be pre-configured.
  • the mapping between the frequency domain offset of the occupied time-frequency resource and the information on the partial bits of the SFN the UE can determine the partial bit of the SFN by detecting the frequency domain offset of the time-frequency resource occupied by the DMRS and the mapping relationship. Information.
  • the information on the partial bits of different SFNs is indicated by different OCCs used by the DMRS sequence, and the mapping relationship between the information on the partial bits of the OCC and the SFN needs to be pre-configured.
  • Table 13 below shows the high positions of the OCC and SS block indexes. Low-level mapping relationship;
  • the UE can determine the information on the partial bits of the SFN by detecting the OCC used by the DMRS and the mapping relationship.
  • the above information indicates information on a part of the bits of the SFN. It should be noted that the above information indicates that the information on the partial bits of the SFN is the same, and any one of them may be used to indicate information on a part of the SFN, or the information on the partial bits may be divided. It is at least two parts, and at least two of the above information are used to indicate each of the at least two parts, and the examples are not exemplified herein.
  • the mapping relationship between the first indication information configured by the network device and the at least part of the information of the second indication information may include, for example, a first mapping relationship and a second mapping relationship, where the first mapping relationship For example, it may be a mapping relationship between the first indication information and a position of a synchronization signal block (SS block) within a SS burst set period, and the second mapping relationship may be, for example, a synchronization signal block (SS block). a mapping relationship between a location in the SS burst set period and at least a part of the information of the second indication information (SFN), whereby the user equipment can determine the first mapping relationship and the first indication information.
  • SS block synchronization signal block
  • the second mapping relationship determines at least a portion of the information of the second indication information (SFN).
  • the first indication information indicates the position of the synchronization signal block (SS block) within the SS burst set period in the first mapping relationship
  • the partial information in the second indication information in the description of the above 1-4 needs to be replaced with at least two parts of the first indication information. Any part of the information.
  • the mapping relationship configured in step 203 can be sent to the user equipment.
  • the embodiment may be not limited to this.
  • the mapping relationship may be pre-stored in the network device and the user equipment, so that the mapping relationship may not be configured in the network device and the mapping relationship is sent to the user equipment, that is, , step 203 may not be needed.
  • the indication method is capable of supporting a plurality of configurable synchronization signal periods, adapted to flexible configuration of synchronization signal periods.
  • the second embodiment provides an information detection method, which is applied to the user equipment side.
  • FIG. 5 is a flowchart of the information detecting method in the second embodiment, as shown in FIG. 5, which includes:
  • Step 501 Receive first indication information that is sent by the network device to indicate a location of a synchronization signal block (SS block) within a synchronization burst transmission period (SS burst set).
  • SS block synchronization signal block
  • SS burst set synchronization burst transmission period
  • the first indication information is used to determine second indication information indicating a location of a system frame in which the physical broadcast channel (PBCH) in the synchronization signal block is located in a system frame transmission period. At least part of the information.
  • PBCH physical broadcast channel
  • the user equipment may receive the first indication information by detecting a signal sequence and/or receiving a PBCH.
  • the user equipment may receive the first indication information by detecting a signal sequence and/or receiving a PBCH.
  • the user equipment may receive the first indication information by detecting a signal sequence and/or receiving a PBCH.
  • a signal sequence For specific manner, refer to Embodiment 1.
  • the maximum bit number Nmax of the at least part of the information of the second indication information that can be determined by the first indication information is determined according to the synchronization signal transmission period.
  • Embodiment 1 For the manner in which the first indication information determines at least a portion of the information of the second indication information, reference may be made to Embodiment 1.
  • At least one of the following information is used to indicate the remaining part of the second indication information except the at least part of the information: a physical broadcast channel (PBCH) load, a signal sequence, and a PBCH Information related to the coding modulation method, signal sequence resources, and information related to the coding mode of the signal sequence.
  • PBCH physical broadcast channel
  • the signal sequence includes a secondary synchronization signal (SSS) sequence, and/or a TSS sequence, and/or a demodulation reference signal (DMRS) sequence;
  • the information related to the PBCH coding modulation mode includes a scrambling sequence of the PBCH, And/or a cyclic shift employed by the bit information contained in the PBCH, and/or a CRC mask of a cyclic redundancy check (CRC) carried by the scrambled PBCH;
  • the signal sequence resource including the DMRS sequence
  • the information related to the coding mode of the signal sequence includes an orthogonal cover code (OCC) of the DMRS sequence.
  • OCC orthogonal cover code
  • Embodiment 1 For the partial information of how the above information indicates the second indication information, reference may be made to Embodiment 1.
  • At least a portion of the remaining portion of information is indicated by the physical broadcast channel (PBCH) load, and for different synchronization signal transmission periods (SS burst sets), by the physical broadcast channel (PBCH)
  • PBCH Physical Broadcast Channel
  • SS burst sets synchronization signal transmission periods
  • PBCH Physical Broadcast Channel
  • TTI Transmission Time Interval
  • the other partial information except at least a part of the remaining part of the information is related to the signal sequence, the information related to the PBCH coded modulation mode, the signal sequence resource, and the signal sequence coding mode. At least one of the information is indicated.
  • the method may further include:
  • Step 502 Receive information that is sent by the network device and is used to indicate the remaining part of the second indication information except the at least part of the information.
  • Step 503 Obtain the first indication information that is configured by the network device, and a mapping relationship between the information and the second indication information;
  • Step 504 Determine the second indication information according to the first indication information, the information, and the mapping relationship.
  • At least a part of information indicating the indication information of the system frame in which the PBCH is located can be determined according to the indication information indicating the position of the synchronization signal block (SS block), thereby simplifying the detection of the SFN.
  • the method reduces the implementation complexity of the user equipment.
  • the third embodiment further provides an information indicating device. Since the principle of solving the problem is similar to the method of Embodiment 1, the specific implementation may refer to the implementation of the method of Embodiment 1, and the description of the same portions is not repeated.
  • Fig. 6 is a schematic diagram of the information indicating apparatus of the third embodiment. As shown in FIG. 6, the apparatus 600 includes:
  • the transmitting unit 601 transmits, to the user equipment, first indication information indicating a position of the synchronization signal block (SS block) within the SS burst set period.
  • the first indication information is used to determine to indicate a physical broadcast signal in the synchronization signal block. At least a portion of the second indication information (SFN) of the location of the system frame (System Frame) in which the channel (PBCH) is located during the system frame transmission period.
  • SFN second indication information
  • the sending unit 602 may further send, to the user equipment, the information indicating the remaining part of the second indication information except the at least part of the information.
  • the device may further include:
  • the configuration unit 602 is configured to configure the first indication information and a mapping relationship between the information and the second indication information.
  • At least a part of information indicating the indication information of the system frame in which the PBCH is located can be determined according to the indication information indicating the position of the synchronization signal block (SS block), thereby simplifying the detection of the SFN.
  • the method reduces the implementation complexity of the user equipment.
  • the fourth embodiment provides a network device.
  • the method for solving the problem is similar to the method of the first embodiment. Therefore, the specific implementation may be implemented by referring to the method in the first embodiment.
  • FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention.
  • network device 700 can include a central processing unit (CPU) 701 and memory 702; and memory 702 is coupled to central processor 701.
  • the memory 702 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processing unit 701 to transmit the indication information.
  • the functionality of device 600 can be integrated into central processor 701.
  • the central processing unit 701 can be configured to implement the information indication method of Embodiment 1.
  • the central processing unit 701 can be configured to: control to transmit, to the user equipment, first indication information indicating a location of a synchronization signal block (SS block) within a SS burst set period, wherein The first indication information is used to determine at least part of information indicating second location information of a system frame in which the physical broadcast channel (PBCH) in the synchronization signal block is located within a system frame transmission period.
  • SS block synchronization signal block
  • PBCH physical broadcast channel
  • the at least one of the following information is used to indicate the remaining part of the second indication information except the at least one part of the information:
  • PBCH Physical Broadcast Channel
  • the signal sequence includes a secondary synchronization signal (SSS) sequence, and/or a TSS sequence, and/or a PBCH demodulation reference signal (DMRS) sequence; and the information related to the PBCH coding modulation mode includes PBCH scrambling. a cyclic shift employed by the sequence, and/or bit information contained in the PBCH, and/or a CRC mask of a cyclic redundancy check (CRC) carried by the scrambled PBCH; the signal sequence resources include The frequency domain offset and/or the time domain offset of the time-frequency resource occupied by the DMRS sequence; the information related to the coding mode of the signal sequence includes an orthogonal cover code (OCC) of the DMRS sequence.
  • SSS secondary synchronization signal
  • DMRS PBCH demodulation reference signal
  • At least a part of the information of the remaining part of the information is indicated by the physical broadcast channel (PBCH) load, and for a different synchronization signal transmission period (SS burst set period) configured by the network device, by the physical At least a portion of the remaining information of the broadcast channel (PBCH) load indication has the same number of bits.
  • PBCH physical broadcast channel
  • the bit number of the at least part of the information of the remaining part of the information indicated by the physical broadcast channel (PBCH) load is according to a Physical Broadcast Channel (PBCH) Transmission Time Interval (TTI), or The predetermined period in the set of SS burst set periods is determined.
  • PBCH Physical Broadcast Channel
  • TTI Transmission Time Interval
  • the other part of the information other than the at least part of the remaining part of the information is related to the signal sequence, the information related to the PBCH coded modulation mode, the signal sequence resource, and the coding mode of the signal sequence. At least one of the information is indicated.
  • the first indication information is sent to the user equipment at the same time or different from the information.
  • the maximum number of bits (Nmax) of the at least part of the information of the second indication information that can be determined by the first indication information is determined according to the synchronization signal transmission period.
  • the central processing unit 701 can be configured to: control to send, to the user equipment, the information indicating the remaining part of the second indication information except the at least one part of the information.
  • the central processing unit 701 can be configured to: configure the first indication information and a mapping relationship between the information and the second indication information.
  • the above device 600 may be configured separately from the central processing unit 701.
  • the device 600 may be configured as a chip connected to the central processing unit 701, such as the unit shown in FIG.
  • the control of the processor 701 implements the functions of the device 600.
  • the network device 700 may further include: a transceiver 703, an antenna 704, and the like; wherein the functions of the foregoing components are similar to those of the prior art, and details are not described herein again. It should be noted that the network device 1100 does not have to include all the components shown in FIG. 7; in addition, the network device 700 may further include components not shown in FIG. 7, and reference may be made to the prior art.
  • At least a part of information indicating the indication information of the system frame in which the PBCH is located can be determined according to the indication information indicating the position of the synchronization signal block (SS block), thereby simplifying the detection of the SFN.
  • the method reduces the implementation complexity of the user equipment.
  • the fifth embodiment further provides an information detecting apparatus. Since the principle of solving the problem is similar to the method of the second embodiment, the specific implementation may refer to the implementation of the method of the second embodiment, and the description of the same portions is not repeated.
  • FIG. 8 is a schematic diagram showing the structure of an information detecting apparatus according to an embodiment of the present invention. As shown in FIG. 8, the apparatus includes:
  • the receiving unit 801 is configured to receive first indication information that is sent by the network device and that indicates a location of the synchronization signal block (SS block) within the SS burst set.
  • SS block synchronization signal block
  • the first indication information is used to determine at least part of information indicating second location information of a system frame in which the physical broadcast channel (PBCH) in the synchronization signal block is located in a system frame transmission period. .
  • PBCH physical broadcast channel
  • the receiving unit 801 may further receive, by the network device, information indicating the remaining part of the second indication information except the at least one part of the information.
  • the apparatus 800 may further include:
  • the obtaining unit 802 is configured to obtain the first indication information of the network device configuration and a mapping relationship between the information and the second indication information.
  • the determining unit 803 determines the second indication information according to the first indication information, the information, and the mapping relationship.
  • At least a part of information indicating the indication information of the system frame in which the PBCH is located can be determined according to the indication information indicating the position of the synchronization signal block (SS block), thereby simplifying the detection of the SFN.
  • the method reduces the implementation complexity of the user equipment.
  • the sixth embodiment provides a user equipment.
  • the method for solving the problem is similar to the method of the second embodiment. Therefore, the specific implementation may be implemented by referring to the method in the second embodiment.
  • FIG. 9 is a schematic diagram showing the structure of a user equipment according to an embodiment of the present invention.
  • user equipment 900 can include a central processing unit (CPU) 901 and memory 902; and memory 902 is coupled to central processing unit 901.
  • the memory 902 can store various data; in addition, a program for data processing is stored, and the program is executed under the control of the central processing unit 901 to detect the indication information.
  • the functionality of device 800 can be integrated into central processor 901.
  • the central processing unit 901 can be configured to implement the information indication method described in Embodiment 2.
  • the central processing unit 901 can be configured to perform control to cause the user equipment to perform the method of the second embodiment.
  • the device 800 may be configured separately from the central processing unit 901.
  • the device 1200 may be configured as a chip connected to the central processing unit 901, such as the unit shown in FIG. Control is implemented to implement the functionality of device 800.
  • the user equipment 900 may further include a communication module 903, an input unit 904, a display 906, an audio processor 905, an antenna 909, a power source 908, and the like.
  • the functions of the above components are similar to those of the prior art, and are not described herein again.
  • the user equipment 900 does not have to include all the components shown in FIG. 9; in addition, the user equipment 900 may further include components not shown in FIG. 9, and reference may be made to the prior art.
  • At least a part of information indicating the indication information of the system frame in which the PBCH is located can be determined according to the indication information indicating the position of the synchronization signal block (SS block), thereby simplifying the detection of the SFN.
  • the method reduces the implementation complexity of the user equipment.
  • the embodiment 7 provides a communication system, which includes at least the network device in the embodiment 4 and the user device in the embodiment 6, and the content thereof is incorporated herein, and details are not described herein again.
  • the indication information indicating the position of the synchronization signal block (SS block). At least a part of the information indicating the indication information of the system frame in which the PBCH is located is determined, thereby simplifying the method of detecting the SFN and reducing the implementation complexity of the user equipment.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the information indicating device or the network device to execute the information indicating method described in Embodiment 1.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes the information indicating device or the network device to perform the information indication described in Embodiment 1 when the program is executed in an information indicating device or a network device method.
  • the embodiment of the present invention further provides a storage medium storing a computer readable program, wherein the computer readable program causes the information detecting device or the user equipment to execute the information detecting method described in Embodiment 2.
  • the embodiment of the present invention further provides a computer readable program, wherein the program causes the information detecting apparatus or the user equipment to perform the information detection described in Embodiment 2 when the program is executed in the information detecting apparatus or the user equipment method.
  • the above apparatus and method of the present invention may be implemented by hardware or by hardware in combination with software.
  • the present invention relates to a computer readable program that, when executed by a logic component, enables the logic component to implement the apparatus or components described above, or to cause the logic component to implement the various methods described above Or steps.
  • the present invention also relates to a storage medium for storing the above program, such as a hard disk, a magnetic disk, an optical disk, a DVD, a flash memory, or the like.
  • Each processing method in each device described in connection with the embodiments of the present invention may be directly embodied as hardware, a software module executed by a processor, or a combination of both.
  • one or more of the functional block diagrams shown in Figures 6 and 8 and/or one or more combinations of functional block diagrams may correspond to individual software modules of a computer program flow, or to individual hardware modules.
  • These software modules may correspond to the respective steps shown in FIGS. 2 and 5, respectively.
  • These hardware modules can be implemented, for example, by curing these software modules using a Field Programmable Gate Array (FPGA).
  • FPGA Field Programmable Gate Array
  • the software module can reside in RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium known in the art.
  • a storage medium can be coupled to the processor to enable the processor to read information from, and write information to, the storage medium; or the storage medium can be an integral part of the processor.
  • the processor and the storage medium can be located in an ASIC.
  • the software module can be stored in the memory of the mobile terminal or in a memory card that can be inserted into the mobile terminal.
  • the software module can be stored in the MEGA-SIM card or a large-capacity flash memory device.
  • One or more of the functional block diagrams described with respect to Figures 6, 8 and/or one or more combinations of functional block diagrams can be implemented as a general purpose processor, digital signal processor (DSP) for performing the functions described herein.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • One or more of the functional blocks described with respect to Figures 6, 8 and/or one or more combinations of functional blocks may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, multiple microprocessors One or more microprocessors in conjunction with DSP communication or any other such configuration.

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Abstract

La présente invention concerne un procédé d'indication d'informations, un procédé de détection d'informations et un dispositif associé, et un système de communication. Le procédé d'indication consiste à : transmettre, à un équipement utilisateur, des premières informations d'indication qui indiquent une position d'un bloc de signal de synchronisation au sein d'une période de transmission de signal de synchronisation, les premières informations d'indication étant utilisées pour déterminer au moins certaines informations de secondes informations d'indication qui indiquent une position d'une trame de système dans laquelle un canal de diffusion physique est situé au sein d'une période de transmission de trame de système. Selon la présente invention, au moins certaines informations d'informations d'indication qui indiquent une trame de système dans laquelle un PBCH est situé peuvent être déterminées en fonction d'informations d'indication qui indiquent une position d'un bloc de signal de synchronisation, de telle sorte que le procédé de détection d'un SFN soit simplifié, et la complexité de mise en œuvre d'un équipement d'utilisateur soit réduite.
PCT/CN2017/083327 2017-05-05 2017-05-05 Procédé d'indication d'informations, procédé de détection d'informations et dispositif associé, et système de communication Ceased WO2018201479A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102271023A (zh) * 2010-09-30 2011-12-07 重庆重邮信科通信技术有限公司 长期演进lte系统的系统帧号检测方法及装置
WO2015046853A1 (fr) * 2013-09-27 2015-04-02 주식회사 케이티 Procédé pour émettre-recevoir des informations de système et appareil associé
CN104885546A (zh) * 2013-11-01 2015-09-02 三星电子株式会社 用于获取终端的系统帧号的方法、终端、以及移动通信系统
CN106612555A (zh) * 2015-10-23 2017-05-03 普天信息技术有限公司 一种通信系统的系统帧号的发送方法、确定方法及设备

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102271023A (zh) * 2010-09-30 2011-12-07 重庆重邮信科通信技术有限公司 长期演进lte系统的系统帧号检测方法及装置
WO2015046853A1 (fr) * 2013-09-27 2015-04-02 주식회사 케이티 Procédé pour émettre-recevoir des informations de système et appareil associé
CN104885546A (zh) * 2013-11-01 2015-09-02 三星电子株式会社 用于获取终端的系统帧号的方法、终端、以及移动通信系统
CN106612555A (zh) * 2015-10-23 2017-05-03 普天信息技术有限公司 一种通信系统的系统帧号的发送方法、确定方法及设备

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