WO2022067825A1 - Communication method and apparatus - Google Patents

Communication method and apparatus Download PDF

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Publication number
WO2022067825A1
WO2022067825A1 PCT/CN2020/119758 CN2020119758W WO2022067825A1 WO 2022067825 A1 WO2022067825 A1 WO 2022067825A1 CN 2020119758 W CN2020119758 W CN 2020119758W WO 2022067825 A1 WO2022067825 A1 WO 2022067825A1
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WIPO (PCT)
Prior art keywords
terminal device
signal block
srs
synchronization signal
value
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PCT/CN2020/119758
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French (fr)
Chinese (zh)
Inventor
于莹洁
王艺
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华为技术有限公司
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Priority to PCT/CN2020/119758 priority Critical patent/WO2022067825A1/en
Publication of WO2022067825A1 publication Critical patent/WO2022067825A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W56/00Synchronisation arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02DCLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00Reducing energy consumption in communication networks
    • Y02D30/70Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a communication method and device.
  • the terminal device After acquiring the configuration information of the sounding reference signal (sounding reference signal, SRS), the terminal device sends the SRS to the network device according to the SRS configuration information.
  • the network device receives the SRS from the terminal device, and then performs positioning calculation to determine the position of the terminal device.
  • the specific process of "the terminal device obtains the SRS configuration information" is as follows:
  • the terminal device searches for the synchronization signal to obtain the physical cell identifier (PCI), and then decodes the physical broadcast channel (PBCH). After PBCH decoding, the terminal device obtains the master information block (MIB). Because MIB includes time-frequency location information of control resource set (control-resource set, CORESET) 0. In this way, the terminal device searches for a candidate physical downlink control channel (physical downlink control channel, PDCCH) at the time-frequency position of CORESET0. If a candidate PDCCH is found, the downlink control information (DCI) carried by the PDCCH indicates the resource location of the physical downlink shared channel (PDSCH), so that the terminal device can receive the SIB message (or RRC) through the PDSCH. information). Wherein, the SIB message (or RRC message) includes SRS configuration information.
  • PCI physical cell identifier
  • PBCH physical broadcast channel
  • CORESET control resource set
  • Embodiments of the present application provide a communication method and apparatus, which can simplify the process of acquiring SRS configuration information by a terminal device, and help save power consumption of the terminal device.
  • an embodiment of the present application provides a communication method, and the execution body of the method may be a terminal device, or may be a chip applied in the terminal device.
  • the following description takes the execution subject being a terminal device as an example.
  • the method includes: a terminal device receiving a first signal block from a network device, wherein the first signal block includes a physical broadcast channel PBCH, and the PBCH carries sounding reference signal SRS configuration information. Then, the terminal device sends the SRS to the network device according to the SRS configuration information.
  • the terminal device when the terminal device receives the first synchronization signal block, because the first synchronization signal block includes a PBCH, and the PBCH can carry SRS configuration information. In this way, the terminal device can obtain the SRS configuration information from the PBCH, and the terminal device does not detect downlink channels such as PDCCH and PDSCH, that is, does not perform the PDCCH blind detection process, nor does it receive the PDSCH, which simplifies the process for the terminal device to obtain the SRS configuration information. Thus, the power consumption of the terminal device is reduced.
  • the first signal block also includes a second synchronization signal.
  • the communication method according to the embodiment of the present application further includes: the terminal device determines a first index according to the second synchronization signal, where the first index indicates a cell group identifier or a cell identifier of a cell where the terminal device is located. The terminal device determines, according to the first index, the physical cell identifier PCI of the cell where the terminal device is located, where the PCI is used to decode the PBCH.
  • the terminal device can determine the PCI of the cell where it is located based on the detected second synchronization signal, and then decode the PBCH to obtain the SRS configuration information.
  • the terminal device receives the first signal block from the network device, including: when the interval of the subcarriers is the first subcarrier interval, the terminal device receives the signal block from the network device at the position of the preset symbol the first signal block. Alternatively, when the interval of the subcarriers is the second subcarrier interval, the terminal device receives the first signal block from the network device at the position of the preset symbol.
  • the terminal device receives the first signal block from the network device at the same preset symbol position in the time slot, which reduces the complexity of the terminal device searching for the first signal block.
  • the symbol indices of the preset symbols include 2, 3, 4, and 5.
  • the symbol indices of the preset symbols include 8, 9, 10, and 11.
  • the first signal block further includes a first synchronization signal
  • the first synchronization signal is located in the first symbol of the first signal block.
  • the sequence corresponding to the first synchronization signal is different from the sequence corresponding to the primary synchronization signal PSS in the synchronization signal block SSB.
  • the terminal device can know the first signal.
  • the PBCH in the block carries SRS configuration information.
  • the sequence corresponding to the first synchronization signal is determined based on the initial sequence and the cyclic shift value m.
  • the cyclic shift value m is determined based on the sequence length corresponding to the first synchronization signal and the target preset value, and the target preset value is the same as the The value of is different, is a preset value and is used to determine the sequence corresponding to PSS, P is based on the sequence length corresponding to PSS and The number of values to be taken is determined.
  • the sequence corresponding to the first synchronization signal is the same as the main synchronization signal in the synchronization signal block SSB.
  • the sequences corresponding to PSS are different. In this way, after the terminal device for positioning detects the sequence corresponding to the first synchronization signal, it can receive the first signal block.
  • the cyclic shift value m satisfies:
  • n is an integer, and 0 ⁇ n ⁇ K, K is the sequence length corresponding to the first synchronization signal, and l is the target preset value.
  • the first signal block also includes a second synchronization signal.
  • the second synchronization signal is determined based on the first index.
  • the first index indicates the cell group identifier or the cell identifier of the cell where the terminal device is located; and the number of values of the first index is less than the first preset value.
  • the first preset value may be The number of values to take. That is to say, the number of values of the first index is less than The number of values to take.
  • the terminal device detects the sequence corresponding to the second synchronization signal, the terminal device generates multiple sequences corresponding to the second synchronization signal, and the terminal device compares the sequence corresponding to the received second synchronization signal with the second synchronization signal generated by the terminal device The corresponding multiple sequences are matched. If the second synchronization signal received by the terminal device matches a sequence corresponding to the second synchronization signal generated by the terminal device, the terminal device successfully detects the sequence corresponding to the second synchronization signal.
  • the sequence corresponding to the second synchronization signal does not match the various sequences corresponding to the second synchronization signal generated by the terminal device, and the terminal device does not detect the sequence corresponding to the second synchronization signal. Since the types of sequences corresponding to the second synchronization signal are limited, the complexity of detecting the second synchronization signal by the terminal device is also reduced.
  • the maximum value of the first index is smaller than the second preset value.
  • the second preset value is based on The size of the value is determined.
  • the set of values for the first index is A subset of the set of values.
  • the maximum value that can be obtained is 335, and the second preset value is 335.
  • the value of the synchronization grid corresponding to the first signal block is greater than the value of the synchronization grid corresponding to the SSB.
  • the terminal equipment searches for the first signal block within a certain bandwidth, compared with the case where the synchronization grid is 1200kHz, 1.44MHz, the synchronization grid corresponding to the first signal block is larger, which reduces the search for the first signal block by the terminal equipment.
  • the number of times a signal block saves the power consumption of the terminal device.
  • the value range of the synchronization grid corresponding to the first signal block is 2 MHz to 50 MHz.
  • the SRS configuration information includes at least one of the following: resource period, resource bandwidth, number of symbols, and offset.
  • the resource period is the period of the SRS resource set
  • the resource bandwidth is the frequency domain resource size of the SRS resource set
  • the number of symbols is the number of symbols occupied by the SRS resource set
  • the offset indicates the preset position of the time domain resource where the SRS resource set is located
  • the time length between the preset position of the time domain resource carrying the PBCH, the preset position includes one of a start position and an end position.
  • the SRS resource set includes resources of at least one SRS. That is to say, the SRS configuration information indicates the location of the SRS resource set. In this way, the terminal device sends the SRS to the network device at the resource location of the SRS resource set.
  • an embodiment of the present application provides a communication method, and the execution body of the method may be a network device or a chip applied in the network device.
  • the following description takes the execution subject being a network device as an example.
  • the method includes: a network device sends a first signal block to a terminal device, wherein the first signal block includes a physical broadcast channel PBCH, and the PBCH carries sounding reference signal SRS configuration information. Then, the network device receives the SRS from the terminal device according to the SRS configuration information.
  • sending the first signal block by the network device to the terminal device includes: when the interval of the subcarriers is the first subcarrier interval, the network device sends the first signal block to the terminal device at the position of the preset symbol. A signal block; or, when the interval of the subcarriers is the second subcarrier interval, the network device sends the first signal block to the terminal device at the position of the preset symbol.
  • the symbol indices of the preset symbols include 2, 3, 4, and 5.
  • the symbol indices of the preset symbols include 8, 9, 10, and 11.
  • the first signal block further includes a first synchronization signal
  • the first synchronization signal is located in the first symbol of the first signal block.
  • the sequence corresponding to the first synchronization signal is different from the sequence corresponding to the primary synchronization signal PSS in the synchronization signal block SSB.
  • the sequence corresponding to the first synchronization signal is determined based on the initial sequence and the cyclic shift value m.
  • the cyclic shift value m is determined based on the sequence length corresponding to the first synchronization signal and the target preset value, and the target preset value is the same as the The value of is different, is a preset value and is used to determine the sequence corresponding to PSS, P is based on the sequence length corresponding to PSS and The number of values to be taken is determined.
  • the cyclic shift value m satisfies:
  • n is an integer, and 0 ⁇ n ⁇ K, K is the sequence length corresponding to the first synchronization signal, and l is the target preset value.
  • the first signal block further includes a second synchronization signal; the second synchronization signal is determined based on the first index.
  • the first index indicates the cell group identifier or the cell identifier of the cell where the terminal device is located; and the number of values of the first index is less than the first preset value.
  • the maximum value of the first index is smaller than the second preset value.
  • the value of the synchronization grid corresponding to the first signal block is greater than the value of the synchronization grid corresponding to the SSB.
  • the value range of the synchronization grid corresponding to the first signal block is 2 MHz to 50 MHz.
  • the SRS configuration information includes at least one of the following: resource period, resource bandwidth, number of symbols, and offset.
  • the resource period is the period of the SRS resource set;
  • the resource bandwidth is the frequency domain resource size of the SRS resource set;
  • the number of symbols is the number of symbols occupied by the SRS resource set;
  • the offset indicates the preset position of the time domain resource where the SRS resource set is located
  • the time length between the preset position of the time domain resource carrying the PBCH, the preset position includes one of a start position and an end position;
  • the SRS resource set includes at least one SRS resource.
  • an embodiment of the present application provides a communication device, where the communication device may be a terminal device in the first aspect or any possible design of the first aspect, or a device disposed in the above-mentioned terminal device, or A chip that realizes the functions of the above-mentioned terminal equipment; the communication device includes a corresponding module, unit, or means (means) for realizing the above-mentioned method, and the module, unit, or means can be realized by hardware, software, or by hardware. accomplish.
  • the hardware or software includes one or more modules or units corresponding to the above functions.
  • the communication device includes a communication unit and a processing unit.
  • the communication unit is configured to receive a first signal block from a network device, where the first signal block includes a physical broadcast channel PBCH, and the PBCH carries sounding reference signal SRS configuration information.
  • the processing unit is configured to determine resources for sending the SRS to the network device according to the SRS configuration information.
  • the communication unit is further configured to send the SRS to the network device on the resource determined by the processing unit.
  • the first signal block also includes a second synchronization signal.
  • the processing unit is further configured to determine a first index according to the second synchronization signal, where the first index indicates a cell group identifier or a cell identifier of a cell where the communication device is located.
  • the processing unit is further configured to determine, according to the first index, the physical cell identifier PCI of the cell where the communication device is located, where the PCI is used to decode the PBCH.
  • the communication unit is specifically configured to: when the interval of the subcarriers is the first subcarrier interval, receive the first signal block from the network device at the position of the preset symbol; or, in the subcarrier interval When the interval of the carriers is the second sub-carrier interval, the first signal block from the network device is received at the position of the preset symbol.
  • an embodiment of the present application provides a communication device, and the communication device may be a network device in the first aspect or any possible design of the first aspect, or a device disposed in the network device, or A chip that realizes the functions of the above-mentioned network equipment; the communication device includes a corresponding module, unit, or means (means) for realizing the above-mentioned method, and the module, unit, or means can be realized by hardware, software can be realized, or corresponding software can be executed by hardware accomplish.
  • the hardware or software includes one or more modules or units corresponding to the above functions.
  • the communication device includes a communication unit and a processing unit. Wherein, the processing unit is used to determine the SRS configuration information.
  • the communication unit is configured to send a first signal block to the terminal device, where the first signal block includes a physical broadcast channel PBCH, and the PBCH carries sounding reference signal SRS configuration information.
  • the communication unit is further configured to receive the SRS from the terminal device according to the SRS configuration information.
  • the communication unit is specifically configured to: when the interval of the subcarriers is the first subcarrier interval, send the first signal block to the terminal device at the position of the preset symbol; or, in the subcarrier interval In the case where the interval is the second subcarrier interval, the first signal block is sent to the terminal device at the position of the preset symbol.
  • an embodiment of the present application provides a communication device, including: a processor; the processor is configured to be coupled to a memory, and after reading an instruction in the memory, execute the first aspect or the first according to the instruction.
  • the communication apparatus may be a terminal device in the first aspect or any possible design of the first aspect, or a chip that implements the functions of the terminal device.
  • an embodiment of the present application provides a chip, including a logic circuit and an input and output interface.
  • the I/O interface is used for communication with modules other than the chip, for example, the I/O interface outputs the SRS, or the I/O interface inputs the first signal block.
  • the logic circuit is used to run the computer program or instructions to implement the communication method provided by the above first aspect or any possible design of the first aspect.
  • the chip may be a chip that implements the terminal device function in the first aspect or any possible design of the first aspect.
  • an embodiment of the present application provides a communication device, where the communication device includes: a unit for executing each step in the second aspect or any possible design of the second aspect.
  • the communication device may be a network device in the second aspect or any possible design of the second aspect, or a chip that implements the function of the network device.
  • the communication device includes corresponding modules, units, or means for implementing the above method, and the modules, units, or means may be implemented by hardware, software, or by executing corresponding software in hardware.
  • the hardware or software includes one or more modules or units corresponding to the above functions.
  • an embodiment of the present application provides a communication device, including: a processor and a memory; the memory is used to store a computer instruction, and when the processor executes the instruction, the communication device executes the above-mentioned second aspect or The method described in any of the possible designs of the second aspect.
  • the communication device may be a network device in the second aspect or any possible design of the second aspect, or a chip that implements the function of the network device.
  • an embodiment of the present application provides a communication device, including: a processor; the processor is configured to be coupled to a memory, and after reading an instruction in the memory, execute the second aspect or the first according to the instruction.
  • the communication device may be a network device in the second aspect or any possible design of the second aspect, or a chip that implements the function of the network device.
  • an embodiment of the present application provides a chip, including a logic circuit and an input and output interface.
  • the input/output interface is used for communication with modules other than the chip, for example, the input/output interface inputs the SRS, or the input/output interface outputs the first signal block.
  • the logic circuit is used to run the computer program or instructions to implement the communication method provided by the second aspect or any possible design of the second aspect.
  • the chip may be a chip that implements the network device function in the second aspect or any possible design of the second aspect.
  • an embodiment of the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium runs on a computer, the computer can execute any one of the preceding aspects. communication method.
  • an embodiment of the present application provides a computer program product including instructions, which, when executed on a computer, enables the computer to execute the communication method of any one of the foregoing aspects.
  • an embodiment of the present application provides a circuit system, the circuit system includes a processing circuit, and the processing circuit is configured to execute the communication method according to any one of the foregoing aspects.
  • an embodiment of the present application provides a communication system, where the communication system includes the terminal device described in the foregoing aspect and the network device described in the foregoing aspect.
  • FIG. 1a is a schematic structural diagram of a synchronization signal block provided by an embodiment of the present application.
  • FIG. 1b is a schematic diagram of the location of a synchronization signal block provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a process for obtaining configuration information according to an embodiment of the present application
  • FIG. 3 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of a communication method provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of the location of a sounding reference signal resource set provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of still another communication method provided by an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 8 is a schematic structural diagram of still another communication apparatus according to an embodiment of the present application.
  • Synchronization signal block (SSB)
  • An SSB includes a synchronization signal (synchronization signal, SS) and a physical broadcast channel (physical broadcast channel, PBCH).
  • the SS includes a primary synchronization signal (primary synchronization signal, PSS) and a secondary synchronization signal (secondary synchronization signal, SSS).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PSS and SSS The main functions of PSS and SSS are to help terminal equipment identify cells and synchronize with cells.
  • PBCH transmits the most basic system information, such as system frame number and intra-frame timing information. Successful reception of the SSB by the terminal equipment is a prerequisite for it to access the cell.
  • the SSB also includes a demodulation reference signal (demodulation reference signal, DMRS) for demodulating the PBCH.
  • DMRS demodulation reference signal
  • one SSB occupies 4 orthogonal frequency division multiplexin (OFDM) symbols, such as 4 symbols numbered 0 to 3 in Fig. 1a.
  • OFDM orthogonal frequency division multiplexin
  • one SSB occupies 20 resource blocks (resource blocks, RBs), that is, 240 subcarriers, and within these 20 RBs, the subcarriers are numbered from 0 to 239.
  • PSS is located on the middle 127 sub-carriers of symbol 0
  • SSS is located on the middle 127 sub-carriers of symbol 2.
  • guard subcarriers are set to 0, that is, the guard subcarriers are not used to carry signals, and 8 subcarriers and 9 subcarriers are reserved on both sides of the SSS for use as guardband subcarriers, such as
  • the blank areas on both sides of the SSS in Figure 1a are guard subcarriers.
  • PBCH occupies all sub-carriers of symbol 1 and symbol 3, and occupies a part of the remaining sub-carriers in all sub-carriers of symbol 2 except the sub-carriers occupied by SSS (that is, the remaining sub-carriers except the guard sub-carriers) subcarriers other than the carrier).
  • FIG. 1b shows symbol positions for transmitting SSBs.
  • a box represents a symbol.
  • a solid box represents the symbol carrying the SSB.
  • a dashed box represents symbols that do not carry SSB.
  • the terminal device receives information from the network device at the position of the symbol index "2, 3, 4, 5" or the position of the symbol index "8, 9, 10, 11" in the time slot. SSB.
  • the symbol index of the terminal device in the time slot is the position of "4, 5, 6, 7" and the position of "8, 9, 10, 11" , “2, 3, 4, 5" or “6, 7, 8, 9” to receive the SSB from the network device.
  • the symbol index of the terminal device in the time slot is the position of "2, 3, 4, 5", the position of "8, 9, 10, 11", the position of "2, 3, 4, 5" ” or “8, 9, 10, 11” to receive SSB from network devices. That is, the symbol positions at which the terminal device receives the SSB are determined based on the subcarrier spacing.
  • the SSB involved in the embodiments of the present application refers to the SSB defined in the NR.
  • PCI Physical layer distinguishes different cells through PCI.
  • PCI satisfies the following formula:
  • the sequence corresponding to the PSS is an m sequence, and the sequence length corresponding to the PSS is 127, that is, the sequence corresponding to one PSS includes 127 sequence elements.
  • the sequences corresponding to the three PSSs are obtained by performing a cyclic shift on the initial sequence.
  • the sequence corresponding to PSS satisfies the following formula:
  • [x(6)x(5)x(4)x(3)x(2)x(1)x(0)] is the initial sequence, that is, the values of x(0) and x(3) are both is 0, x(4) to x(6) are all 1, and x(1) and x(2) are both 1.
  • n represents the sequence element index.
  • the number of n values can reflect the sequence length corresponding to the PSS
  • d PSS (n) represents the value of the sequence element whose sequence element index is n in the sequence corresponding to the PSS
  • m represents the cyclic shift value.
  • mod is the modulo operator. For the value of , please refer to the relevant description of formula (1).
  • the sequence corresponding to the SSS is an m-sequence with a length of 127, that is, a sequence corresponding to an SSS includes 127 sequence elements.
  • the sequences corresponding to 335 SSSs are obtained by cyclic shift of the initial sequence.
  • the sequence corresponding to the SSS satisfies the following formula (3).
  • [x 0 (6)x 0 (5)x 0 (4)x 0 (3)x 0 (2)x 0 (1)x 0 (0)] and [x 1 (6 )x 1 (5)x 1 (4)x 1 (3)x 1 (2)x 1 (1)x 1 (0)] are all initial sequences. That is, x 0 (0) and x 1 (0) are both 1, x 0 (1) to x 0 (6) are all 0, and x 1 (1) to x 1 (6 ) takes the value of 0.
  • n represents the sequence element index. The number of n values can reflect the sequence length corresponding to the SSS.
  • m 0 represents the cyclic shift of the sequence where x 0 is located.
  • d SSS (n) represents the value of the sequence element whose sequence element index is n in the sequence corresponding to SSS, and m 1 represents the cyclic shift value of the sequence where x 1 is located.
  • mod is the modulo operator. Represents a round-down operation. the value of and For the value of , please refer to the relevant description of formula (1).
  • the value of x(i+7) can also be determined according to the above processing procedure.
  • the value of x 1 (i+7) can be determined.
  • the value of m 0 satisfies the following calculation formula:
  • the value of m 1 satisfies the following calculation formula: The value of is different, based on The types of sequences corresponding to the obtained SSS are also different. and The specific value of is determined based on the sequence corresponding to the PSS. so, in When the value of is fixed, the type of sequence corresponding to SSS is the same as The number of values is the same.
  • the synchronization grid of the synchronization signal block is specified in the NR.
  • the sync grid is 1200kHz.
  • the sync grid is 1.44MHz.
  • Target, positioning technology mainly includes uplink positioning technology, downlink positioning technology and uplink and downlink positioning technology.
  • a network device receives a sounding reference signal (sounding reference signal, SRS) for positioning from a terminal device. After that, the network device detects the SRS to locate the location of the terminal device.
  • a terminal device receives a positioning reference signal (positioning reference signal, PRS) from a network device. After that, the terminal device detects the PRS to locate the position of the terminal device.
  • PRS positioning reference signal
  • the network device sends the PRS to the terminal device.
  • the terminal device receives the PRS from the network device.
  • the terminal device sends the SRS to the network device.
  • the network device receives the SRS for positioning from the terminal device. After that, both the terminal device and the network device perform a detection process to locate the position of the terminal device.
  • the terminal device After acquiring the SRS configuration information, the terminal device sends the SRS to the network device according to the SRS configuration information.
  • the network device receives the SRS from the terminal device, and then performs positioning calculation to determine the position of the terminal device.
  • the specific process of "the terminal device obtains SRS configuration information" is as follows:
  • Step 1 the terminal device receives the SSB from the network device. After that, the terminal device searches for the synchronization signal in the SSB to obtain the PCI. The terminal device decodes the PBCH based on the PCI to obtain MIB and SSB indices from the PBCH, thereby synchronizing the terminal device with the network device.
  • Step 2 since the MIB includes the time-frequency location information of CORESET0.
  • the terminal device searches for a candidate physical downlink control channel (PDCCH) at the time-frequency position of CORESET0.
  • PDCH physical downlink control channel
  • the DCI carried by the PDCCH indicates the resource location of the PDSCH.
  • Step 3 the terminal device receives the SIB message (or RRC message) at the PDSCH resource location indicated by the DCI.
  • the SIB message (or RRC message) includes SRS configuration information.
  • the terminal device When the terminal device initially accesses the network device, the terminal device obtains the SRS configuration information from the SIB message. In the subsequent communication process between the terminal device and the network device, the terminal device obtains the SRS configuration information from the RRC message.
  • FIG. 3 is a schematic diagram of the architecture of a communication system applicable to the communication method of the embodiment of the present application, and the communication system may include a terminal device 30 and a network device.
  • the number of terminal devices 30 may be one or more, and the number of network devices may also be one or more.
  • the network device may include an access network device 32 located in the wireless access network and a core network device 33 located in the core network.
  • FIG. 3 is only a schematic diagram, and does not constitute a limitation on an applicable scenario of the communication method of the embodiment of the present application.
  • the terminal device 30 also known as user equipment (UE), mobile station (MS), mobile terminal (MT) or terminal (terminal), etc., is a device that provides voice/data connectivity to users.
  • devices such as handheld or in-vehicle devices with wireless connectivity.
  • the terminal equipment can be specifically: mobile phone (mobile phone), tablet computer, notebook computer, PDA, mobile internet device (MID), wearable device, virtual reality (virtual reality, VR) device, augmented reality (augmented reality) reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grid (smart grid) Terminal, wireless terminal in transportation safety, wireless terminal in smart city, or wireless terminal in smart home, terminal equipment in 5G communication network or communication network after 5G, etc. , which is not limited in the embodiments of the present application.
  • the access network device 32 includes one or more devices of the first-standard network and devices of the second-standard network.
  • the device of the first-standard network may be a next generation LTE base station (next generation eNodeB, ng-eNB), for example, an LTE base station accessing a 5G core network, and the ng-eNB may It has a transmission point (TP) and a receiving point (RP).
  • TP transmission point
  • RP receiving point
  • the terminal equipment communicates with the equipment of the first standard network through the "LTE-Uu" link.
  • the device of the second-standard network may be a 5G base station (gNodeB, gNB), that is, a 5G base station accessing the 5G core network.
  • the gNB is a device deployed in a radio access network that meets the 5G standard and provides a wireless communication function for terminal equipment.
  • the terminal equipment communicates with the equipment of the second-standard network through the "NR-Uu" link.
  • the device on the first-standard network communicates with the device on the second-standard network through the Xn interface.
  • the core network equipment 33 can be divided into components with access and mobility management functions (access and mobility management functions, AMF) and location management functions (location management functions, LMF).
  • AMF can implement functions such as gateways, and LMF can implement a positioning center. and other functions, such as positioning and calculating the terminal equipment according to the measurement results of other network elements, AMF and LMF can communicate.
  • AMF and LMF can be connected through NLs interface.
  • the main functions of AMF include: connection management, mobility management, registration management, access authentication and authorization, reachability management, security context management and other functions related to access and mobility. Communication between the access network device 32 and the AMF is performed through the NG-C interface.
  • LMF is a device or component that is deployed in the core network to provide positioning functions for terminal equipment.
  • LMF also includes a location management component (location management component, LMC).
  • LMC location management component
  • the LMC may also be integrated on a base station (for example, a 5G base station (gNodeB, gNB)) of the second-standard network on the next-generation radio access network (NG-RAN) side.
  • the core network device 33 also includes an enhanced serving mobile location center (enhanced serving mobile location center, E-SMLC) and/or a secure user plane location platform (secure user plane location platform, SLP) connected to the LMF.
  • E-SMLC enhanced serving mobile location center
  • SLP secure user plane location platform
  • the E-SMLC is the entity responsible for the positioning of the control plane, and is used to manage the positioning of the terminal equipment by obtaining measurement and other positioning information
  • the SLP is the SUPL entity responsible for the positioning of the user plane.
  • An embodiment of the present application provides a communication method, and the communication method is applied in an uplink positioning process.
  • the communication method includes the following steps:
  • a network device sends a first signal block to a terminal device.
  • the terminal device receives the first signal block from the network device.
  • the first signal block includes a PBCH, and the PBCH carries SRS configuration information.
  • the first signal block may also be referred to as a "synchronization signal block for positioning (SSB for positioning, SSBP)".
  • the number of symbols occupied by the first signal block may be four.
  • the SRS configuration information may also be configuration information of reference signals used for positioning.
  • the introduction of the PBCH in the first signal block is as follows:
  • the PBCH is located in the second symbol, the third symbol and the fourth symbol of the first signal block, that is, the symbol positions of the PBCH in the synchronization signal block are the same, As shown in Figure 1a.
  • the payload of PBCH includes MIB.
  • MIB includes SRS configuration information.
  • the SRS configuration information includes at least one of the following:
  • the resource period is the period of the SRS resource set.
  • the resource period is denoted as T, and there is one SRS resource set every interval of resource period T.
  • the period length of the resource period may be 5ms, 20ms, 80ms.
  • the use of 2 bits in the MIB specifically refers to a period value among the above-mentioned "5ms, 20ms, 80ms and reserved".
  • the period length of the resource period may also be other durations, which are not limited in this embodiment of the present application.
  • the second item resource bandwidth (bandwidth).
  • the resource bandwidth is the size of the frequency domain resources of the SRS resource set, that is, the size of the frequency domain resources occupied by the SRS resource set, such as 20MHz, 40MHz, 80MHz, and 100MHz.
  • the use of 2 bits in the MIB specifically refers to a bandwidth value in the above-mentioned "20MHz, 40MHz, 80MHz, 100MHz".
  • the third item the number of symbols.
  • the number of symbols is the number of symbols occupied by the SRS resource set, that is, the number of symbols that carry the SRS resource set in one time slot, such as one or two symbols.
  • the use of 1 bit in the MIB specifically refers to one of the above-mentioned "1 symbol and 2 symbols".
  • the offset indicates the time length between the preset position of the time domain resource where the SRS resource set is located and the preset position of the time domain resource carrying the PBCH, and the preset position includes one of a start position and an end position.
  • the unit of the time length indicated by the offset may be a time slot, a symbol, a subframe, or the like.
  • the offset indicates the number of time slots between the time slot in the time slot where the SRS resource set is located and the time slot where the symbol carrying the PBCH is located.
  • the value of the offset is 0 to any value from 7.
  • the use of 3 bits in the MIB specifically refers to one of the above-mentioned values of "0 to 7".
  • the offset indicates the number of symbols spaced between the first (or last) symbol in the symbol where the SRS resource set is located and the first (or last) symbol carrying the PBCH.
  • the offset indicates the number of symbols spaced between the subframe where the SRS resource set is located and the subframe where the symbol carrying the PBCH is located.
  • the SRS resource set includes one resource for transmitting SRS or multiple resources for transmitting SRS.
  • FIG. 5 shows a schematic diagram of a scenario of SRS configuration information.
  • an unfilled box represents a time slot.
  • a box filled with vertical lines represents a first signal block.
  • a box filled with slashes represents the resources of an SRS resource pool.
  • the resource bandwidth is 20MHz
  • the bandwidth of the SRS resource set shown in FIG. 5 is from 10MHz to 30MHz.
  • the number of symbols is 2.
  • the SRS resource set occupies the first 2 symbols in one slot.
  • the offset is 3 time slots. As shown in FIG. 5 , there are 3 time slots between the time slot where the SRS resource set is located and the time slot where the first signal block is located.
  • the SRS configuration information does not include the resource period.
  • the SRS configuration information does not include the resource bandwidth.
  • the SRS configuration information does not include the number of symbols.
  • the MIB configuration information also includes one or more of the following information:
  • the first item is the system frame number (SFN).
  • SFN system frame number
  • the value of SFN is indicated by 10 bits, that is, the 6 most significant bits (most significant bits, MSB) in the MIB and the 4 least significant bits (least significant bits, LSB) of the physical layer together indicate the value of the SFN.
  • the second item is the subcarrier offset of the first signal block, that is, the subcarrier offset of the 0th subcarrier of the first signal block relative to the 0th subcarrier of a common resource block (common resource block, CRB).
  • the subcarrier offset of the first signal block ranges from 0 to 15 subcarriers.
  • the use of 4 bits in the MIB specifically refers to one of the above-mentioned "0 to 15".
  • the third item, half-frame indication (half-frame indication) information indicates the first field or the second field in a time slot of the first signal block. It is indicated by 1 bit in the MIB. For example, when the value of this bit is "0", the first signal block is in the first half of a time slot. When the value of this bit is "1", the first signal block is in the second half of a time slot.
  • the introduction of the first synchronization signal in the first signal block is as follows:
  • the first signal block further includes a first synchronization signal
  • the first synchronization signal is located in the first symbol of the first signal block, that is, the same as the symbol position of the PSS in the synchronization signal block, as shown in FIG. 1a.
  • the sequence corresponding to the first synchronization signal is different from the sequence corresponding to the primary synchronization signal PSS in the synchronization signal block SSB. In this way, after the terminal device detects the first synchronization signal, the terminal device can determine that the PBCH in the first signal block carries the SRS configuration information.
  • the sequence corresponding to the first synchronization signal is determined based on the initial sequence and the cyclic shift value.
  • the cyclic shift value is determined based on the sequence length corresponding to the first synchronization signal and the target preset value, and the target preset value is the same as the The value of is different, is a preset value and is used to determine the sequence corresponding to PSS, P is based on the sequence length corresponding to PSS and The number of values to be taken is determined. For example, the sequence length corresponding to PSS is 127, The number of values taken is 3. P is a value determined based on the ratio.
  • the ratio is "the sequence length corresponding to PSS" and " The ratio between the number of values”.
  • the value of P is 43.
  • the value of is one of "0, 1, 2".
  • the sequence corresponding to the first synchronization signal is determined based on the initial sequence and the cyclic shift value.
  • the cyclic shift value is determined based on the sequence length corresponding to the first synchronization signal and the target preset value, and the target preset value is not any one of "0, 43, 86" (or the target preset value is divided by " a value other than 0, 43, 86").
  • the generation process of the sequence corresponding to the first synchronization signal is as follows:
  • the sequence corresponding to the first synchronization signal is also an m sequence, and the length of the sequence corresponding to the first synchronization signal is K.
  • the sequence corresponding to the first synchronization signal is obtained by performing a cyclic shift on the initial sequence.
  • the sequence corresponding to the first synchronization signal satisfies the following formula:
  • [x(6)x(5)x(4)x(3)x(2)x(1)x(0)] is the initial sequence, that is, the values of x(0) and x(3) are both is 0, the values of x(4) to x(6) are all 1, and the values of x(1) and x(2) are both 1.
  • n represents the sequence element index. The number of n values can represent the sequence length corresponding to the first synchronization signal. K represents the sequence length corresponding to the first synchronization signal.
  • d 1 (n) represents the value of the sequence element of the sequence element index n in the sequence corresponding to the first synchronization signal.
  • m represents a cyclic shift value.
  • l represents the target preset value. mod is the modulo operator.
  • the value of the sequence length K corresponding to the first synchronization signal may be 127, or may be other values, which are not limited in this embodiment of the present application.
  • the value of the target preset value 1 is a value other than "0, 43, 86" among "0 to 126".
  • the first signal block further includes a second synchronization signal
  • the second synchronization signal is located in the third symbol of the first signal block, that is, the same as the symbol position of the SSS in the synchronization signal block (as shown in FIG. 1a ).
  • the second synchronization signal is determined based on the first index.
  • the first index indicates the cell group identifier or the cell identifier of the cell where the terminal device is located.
  • the number of values of the first index is smaller than the first preset value.
  • the first preset value can be The number of values to take. In NR, Used to determine the sequence corresponding to the SSS in the SSB, see formula (3) for details. See equation (1), The number of values is 336. Thus, the first preset value is 336. In other words, the number of values of the first index is less than number of values.
  • the generation process of the sequence corresponding to the second synchronization signal is as follows:
  • the sequence corresponding to the second synchronization signal is an m sequence of length K.
  • the sequence corresponding to the second synchronization signal satisfies the following formula:
  • n represents the sequence element index.
  • the number of n values can represent the sequence length corresponding to the second synchronization signal.
  • K represents the sequence length corresponding to the second synchronization signal.
  • d 2 (n) represents the value of the sequence element whose sequence element index is n in the sequence corresponding to the second synchronization signal, Represents the cyclic shift of the sequence where x 0 is located.
  • a represents the first index.
  • b is a fixed value such as 0, 1, or 2.
  • mod is the modulo operator. Represents a round-down operation.
  • the types of sequences corresponding to the second synchronization signal are less than the types of SSSs in the SSB.
  • the terminal device detects the sequence corresponding to the second synchronization signal, the terminal device generates multiple sequences corresponding to the second synchronization signal, and the type of the sequence corresponding to the second synchronization signal is consistent with the value of the first index a.
  • the terminal device matches the sequence corresponding to the received second synchronization signal with the sequence a corresponding to the second synchronization signal generated by the terminal device.
  • the terminal device If the second synchronization signal received by the terminal device matches a sequence corresponding to the second synchronization signal generated by the terminal device, the terminal device successfully detects the sequence corresponding to the second synchronization signal.
  • the sequence corresponding to the second synchronization signal does not match the various sequences corresponding to the second synchronization signal generated by the terminal device, and the terminal device does not detect the sequence corresponding to the second synchronization signal. Since the types of sequences corresponding to the second synchronization signal are limited, for example, the types of sequences corresponding to the second synchronization signal are less than the types of SSS in the SSB, the complexity of detecting the second synchronization signal by the terminal device is also reduced.
  • the maximum value of the first index is smaller than the second preset value.
  • the second preset value is based on The size of the value is determined. See equation (1), The maximum value that can be obtained is 335, and the second preset value is 335.
  • the first index is a numerical value of "0 to 9". In this case, the number of values that the first index can take is 10, and the maximum value that the first index can take is 9.
  • the set of values for the first index is A subset of the set of values.
  • the second preset value may also be a value greater than 335.
  • the value of the first index is one of "330 to 339". In this case, the maximum value that the first index can take is 339.
  • the communication method according to the embodiment of the present application further includes:
  • the terminal device determines the first index according to the second synchronization signal.
  • the first index indicates the cell group identifier or the cell identifier of the cell where the terminal device is located.
  • the terminal device determines the value of the first index a based on the received second synchronization signal and formula (5).
  • the terminal device determines the PCI of the cell where the terminal device is located according to the first index.
  • the terminal device uses the value of the first index a in formula (5) as the value of , take the value of the fixed value b in formula (5) as The value of , and the terminal device can get the PCI by combining the formula (1).
  • PCI is used for decoding PBCH.
  • the process of "using PCI to decode PBCH” is as follows: the terminal device determines the location of the DMRS in the SSB based on the PCI. The terminal device obtains the DMRS from the location of the DMRS, and then obtains the scrambling sequence based on the DMRS. The terminal device then performs descrambling, decoding, cyclic redundancy check (cyclic redundancy check, CRC) and other processes to obtain the payload of the PBCH.
  • CRC cyclic redundancy check
  • the terminal device can determine the PCI of the cell where it is located based on the detected second synchronization signal, and then decode the PBCH to obtain the SRS configuration information.
  • the value of the synchronization grid corresponding to the first signal block is greater than the value of the synchronization grid corresponding to the SSB.
  • the value range of the synchronization grid corresponding to the first signal block is 2 MHz to 50 MHz. If the terminal device searches for the first signal block within a certain bandwidth, compared with the case where the synchronization grid is 1200kHz, 1.44MHz, the synchronization grid corresponding to the first signal block is larger, which reduces the search for the first signal by the terminal device. The number of blocks saves the power consumption of the terminal device.
  • the first signal block is transmitted at the position of the preset symbol in the time slot.
  • the network device sends the first signal block to the terminal device at the position of the preset symbol.
  • the terminal device receives the first signal block from the network device at the position of the preset symbol.
  • the subcarrier interval is the second subcarrier interval
  • the network device sends the first signal block to the terminal device at the position of the preset symbol.
  • the terminal device receives the first signal block from the network device at the position of the preset symbol.
  • the first subcarrier spacing is different from the second subcarrier spacing.
  • the first subcarrier spacing is 15 kHz
  • the second subcarrier spacing is 30 kHz
  • the symbol index of the preset symbol is the index of four consecutive symbols.
  • the symbol indices of the preset symbols are 2, 3, 4, and 5, or the symbol indices of the preset symbols are 8, 9, 10, and 11. That is, in the case where the terminal device receives the first signal block, the terminal device receives the first signal block at the symbol position with the symbol index "2, 3, 4, 5" or "8, 9, 10, 11" . In this way, when the subcarrier intervals are different, the terminal device receives the first signal block from the network device at the same preset symbol position in the time slot, which reduces the complexity of the terminal device searching for the first signal block.
  • the terminal device sends the SRS to the network device according to the SRS configuration information.
  • the network device receives the SRS from the terminal device according to the SRS configuration information.
  • the SRS resource set on the left is “SRS resource set 1”, and the time domain of SRS resource set 1 is the first 2 of the sixth time slot. symbols, the frequency domain of SRS resource set 1 is 10MHz to 30MHz.
  • the terminal device sends the SRS to the network device on part of the resources of the SRS resource set 1 (or all the resources of the SRS resource set 1).
  • the network device receives the SRS from the terminal device on part of the resources of the SRS resource set 1 (or all the resources of the SRS resource set 1).
  • the network device performs the processing of measurement and positioning calculation based on the received SRS, so as to locate the terminal device.
  • the terminal device when the terminal device receives the first synchronization signal block, because the first synchronization signal block includes a PBCH, and the PBCH can carry SRS configuration information.
  • the terminal device can obtain the SRS configuration information from the PBCH, and the terminal device does not detect downlink channels such as PDCCH and PDSCH, that is, does not perform the PDCCH blind detection process, nor does it receive the PDSCH, which simplifies the process for the terminal device to obtain the SRS configuration information.
  • the power consumption of the terminal device is reduced. For example, in some scenarios (such as factory scenarios), some terminal devices are dedicated to positioning.
  • the terminal devices dedicated to positioning execute the above method, they can quickly obtain SRS configuration information and successfully transmit SRS, reducing the number of terminals dedicated to positioning.
  • the power consumption of the device For uplink positioning that is conducive to saving UE power consumption, if the UE can quickly obtain the SRS configuration and successfully send the SRS after accessing the cell, it can enter the sleep mode to save power consumption to the greatest extent; the work of measurement and positioning calculation is Base station and LMF side.
  • an embodiment of the present application further provides a communication device, and the communication device may be a network element in the foregoing method embodiments, or a device including the foregoing network element, or a component usable for a network element.
  • the communication apparatus includes corresponding hardware structures and/or software modules for executing each function.
  • the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
  • an embodiment of the present application provides a communication apparatus (for example, the communication apparatus may be a chip or a chip system), and the communication apparatus includes an input and output interface and a logic circuit.
  • the input/output interface is used to output the SRS
  • the input/output interface is also used to input the first signal block
  • the input/output interface is also used to output the SRS.
  • the logic circuit is used to perform S401a and S401b on the terminal device side, and/or the logic circuit is also used to perform other processing steps on the terminal device side in the embodiments of the present application.
  • the input/output interface is used for inputting the SRS
  • the input/output interface is also used for outputting the first signal block
  • the input/output interface is also used for Perform other transceiving steps on the network device side in this embodiment of the present application.
  • the logic circuit is configured to perform determining the SRS configuration information, and/or the logic circuit is further configured to perform other processing steps on the network device side in the embodiments of the present application.
  • FIG. 7 shows a schematic structural diagram of a communication apparatus 700 .
  • the communication apparatus 700 may exist in the form of software, or may be a device, or a component in a device (such as a chip system).
  • the communication device 700 includes a communication unit 703 and a processing unit 702 .
  • the communication unit 703 is an interface circuit of the communication device 700, and is used for receiving signals from or sending signals to other devices.
  • the communication unit 703 is an interface circuit used by the chip to receive signals from other chips or devices, or an interface circuit used by the chip to send signals to other chips or devices .
  • the communication unit 703 may include a communication unit for communicating with a terminal device and a communication unit for communicating with other network devices, and these communication units may be integrated together or independently implemented.
  • the processing unit 702 may be used to support the communication apparatus 700 to perform S401a, S401b in FIG. 6, and/or other processes for the solutions described herein .
  • the communication unit 703 is used to support communication between the communication apparatus 700 and other network elements (eg, network equipment).
  • the communication unit is used to support the communication apparatus 700 to perform S401, S402 shown in FIG. 4, and/or other processes for the solutions described herein.
  • the processing unit 702 may be used to support the communication apparatus 700 to determine SRS configuration information, and/or other processes for the solutions described herein.
  • the communication unit 703 is used to support communication between the communication apparatus 700 and other network elements (eg, terminal equipment). For example, the communication unit is used to support the communication apparatus 700 to perform S401, S402 shown in FIG. 4, and/or other processes for the solutions described herein.
  • the communication apparatus 700 may further include a storage unit 701 for storing program codes and data of the communication apparatus 700, and the data may include but not limited to original data or intermediate data.
  • the processing unit 702 may be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (application specific integrated circuit) circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure.
  • a processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
  • the communication unit 703 may be a communication interface, a transceiver or a transceiver circuit, etc., where the communication interface is a general term, and in a specific implementation, the communication interface may include multiple interfaces, for example, may include: a first access network device and a second Interfaces and/or other interfaces between access network devices.
  • the storage unit 701 may be a memory.
  • the processing unit 702 is a processor
  • the communication unit 703 is a communication interface
  • the storage unit 701 is a memory
  • the communication apparatus 800 involved in the embodiment of the present application may be as shown in FIG. 8 .
  • the communication apparatus 800 includes: a processor 802 , a transceiver 803 , and a memory 801 .
  • the transceiver 803 may be an independently set transmitter, and the transmitter may be used to send information to other devices, and the transceiver may also be an independently set receiver, used to receive information from other devices.
  • the transceiver may also be a component that integrates the functions of sending and receiving information, and the specific implementation of the transceiver is not limited in this embodiment of the present application.
  • the communication device 1800 may further include a bus 804 .
  • the transceiver 803, the processor 802 and the memory 801 can be connected to each other through a bus 804; the bus 804 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus etc.
  • the bus 804 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 8, but it does not mean that there is only one bus or one type of bus.
  • the computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer-readable storage medium may be any available medium that a computer can access, or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media.
  • the available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, digital video disc (DVD), or semiconductor media (eg, solid state disk, SSD)) Wait.
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network devices. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each functional unit may exist independently, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.
  • the present application can be implemented by means of software plus necessary general-purpose hardware, and of course hardware can also be used, but in many cases the former is a better implementation manner .
  • the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that make contributions to the prior art.
  • the computer software products are stored in a readable storage medium, such as a floppy disk of a computer. , a hard disk or an optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application.

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Abstract

The present application relates to the technical field of communications. Provided are a communication method and apparatus, being capable of simplifying the process of a terminal device to obtain sounding reference information (SRS) configuration information. The method comprises: a terminal device receives a first signal block from a network device, wherein the first signal block comprises a physical broadcast channel (PBCH), and the PBCH carries the SRS configuration information; and then the terminal device transmits an SRS to the network device according to the SRS configuration information.

Description

通信方法及装置Communication method and device 技术领域technical field
本申请涉及通信技术领域,尤其涉及一种通信方法及装置。The present application relates to the field of communication technologies, and in particular, to a communication method and device.
背景技术Background technique
在上行定位的通信场景中,终端设备获取探测参考信号(sounding reference signal,SRS)的配置信息之后,根据SRS配置信息,向网络设备发送SRS。相应的,网络设备接收来自终端设备的SRS,进而执行定位计算,以确定终端设备的位置。其中,“终端设备获取SRS配置信息”的具体过程如下:In the communication scenario of uplink positioning, after acquiring the configuration information of the sounding reference signal (sounding reference signal, SRS), the terminal device sends the SRS to the network device according to the SRS configuration information. Correspondingly, the network device receives the SRS from the terminal device, and then performs positioning calculation to determine the position of the terminal device. Among them, the specific process of "the terminal device obtains the SRS configuration information" is as follows:
终端设备搜索同步信号,以获取物理小区标识(physical cell identifier,PCI),进而解码物理广播信道(physical broadcast channel,PBCH)。在PBCH解码之后,终端设备获取主***信息块(master information block,MIB)。由于MIB包括控制资源集(control-resource set,CORESET)0的时频位置信息。如此,终端设备在CORESET0的时频位置上查找候选的物理下行控制信道(physical downlink control channel,PDCCH)。若查找到候选的PDCCH,则PDCCH承载的下行控制信息(downlink control information,DCI)指示物理下行共享信道(physical downlink shared channel,PDSCH)的资源位置,以使终端设备通过PDSCH接收SIB消息(或RRC消息)。其中,SIB消息(或RRC消息)包括SRS配置信息。The terminal device searches for the synchronization signal to obtain the physical cell identifier (PCI), and then decodes the physical broadcast channel (PBCH). After PBCH decoding, the terminal device obtains the master information block (MIB). Because MIB includes time-frequency location information of control resource set (control-resource set, CORESET) 0. In this way, the terminal device searches for a candidate physical downlink control channel (physical downlink control channel, PDCCH) at the time-frequency position of CORESET0. If a candidate PDCCH is found, the downlink control information (DCI) carried by the PDCCH indicates the resource location of the physical downlink shared channel (PDSCH), so that the terminal device can receive the SIB message (or RRC) through the PDSCH. information). Wherein, the SIB message (or RRC message) includes SRS configuration information.
综上,在上行定位的通信场景中,“终端设备获取SRS配置信息”的过程复杂,导致终端设备的功耗大。To sum up, in the communication scenario of uplink positioning, the process of "acquiring SRS configuration information by a terminal device" is complicated, resulting in high power consumption of the terminal device.
发明内容SUMMARY OF THE INVENTION
本申请实施例提供一种通信方法及装置,能够简化终端设备获取SRS配置信息的过程,有利于节省终端设备的功耗。Embodiments of the present application provide a communication method and apparatus, which can simplify the process of acquiring SRS configuration information by a terminal device, and help save power consumption of the terminal device.
为达到上述目的,本申请实施例采用如下技术方案:In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
第一方面,本申请实施例提供一种通信方法,该方法的执行主体可以是终端设备,也可以是应用于终端设备中的芯片。下面以执行主体是终端设备为例进行描述。该方法包括:终端设备接收来自网络设备的第一信号块,其中,第一信号块包括物理广播信道PBCH,PBCH携带探测参考信号SRS配置信息。然后,终端设备根据SRS配置信息向网络设备发送SRS。In a first aspect, an embodiment of the present application provides a communication method, and the execution body of the method may be a terminal device, or may be a chip applied in the terminal device. The following description takes the execution subject being a terminal device as an example. The method includes: a terminal device receiving a first signal block from a network device, wherein the first signal block includes a physical broadcast channel PBCH, and the PBCH carries sounding reference signal SRS configuration information. Then, the terminal device sends the SRS to the network device according to the SRS configuration information.
本申请实施例提供的通信方法,终端设备在接收第一同步信号块的情况下,由于第一同步信号块包括PBCH,且PBCH能够携带SRS配置信息。如此,终端设备即可从PBCH中获取到SRS配置信息,终端设备不检测PDCCH和PDSCH等下行信道,即不执行PDCCH盲检过程,也不接收PDSCH,简化了终端设备获取SRS配置信息的过程,从而降低了终端设备的功耗。In the communication method provided by the embodiment of the present application, when the terminal device receives the first synchronization signal block, because the first synchronization signal block includes a PBCH, and the PBCH can carry SRS configuration information. In this way, the terminal device can obtain the SRS configuration information from the PBCH, and the terminal device does not detect downlink channels such as PDCCH and PDSCH, that is, does not perform the PDCCH blind detection process, nor does it receive the PDSCH, which simplifies the process for the terminal device to obtain the SRS configuration information. Thus, the power consumption of the terminal device is reduced.
在一种可能的设计中,第一信号块还包括第二同步信号。本申请实施例通信方法还包括:终端设备根据第二同步信号确定第一索引,其中,第一索引指示终端设备所在小区的小区组标识或小区标识。终端设备根据第一索引,确定终端设备所在小区的物理小区标识 PCI,其中,PCI用于解码PBCH。In one possible design, the first signal block also includes a second synchronization signal. The communication method according to the embodiment of the present application further includes: the terminal device determines a first index according to the second synchronization signal, where the first index indicates a cell group identifier or a cell identifier of a cell where the terminal device is located. The terminal device determines, according to the first index, the physical cell identifier PCI of the cell where the terminal device is located, where the PCI is used to decode the PBCH.
如此,终端设备基于检测到的第二同步信号能够确定自身所处小区的PCI,进而对PBCH进行解码,以得到SRS配置信息。In this way, the terminal device can determine the PCI of the cell where it is located based on the detected second synchronization signal, and then decode the PBCH to obtain the SRS configuration information.
在一种可能的设计中,终端设备接收来自网络设备的第一信号块,包括:在子载波的间隔为第一子载波间隔的情况下,终端设备在预设符号的位置上接收来自网络设备的第一信号块。或者,在子载波的间隔为第二子载波间隔的情况下,终端设备在预设符号的位置上接收来自网络设备的第一信号块。In a possible design, the terminal device receives the first signal block from the network device, including: when the interval of the subcarriers is the first subcarrier interval, the terminal device receives the signal block from the network device at the position of the preset symbol the first signal block. Alternatively, when the interval of the subcarriers is the second subcarrier interval, the terminal device receives the first signal block from the network device at the position of the preset symbol.
如此,在子载波间隔不同的情况下,该终端设备在时隙中的同一预设符号的位置上接收来自网络设备的第一信号块,降低了终端设备搜索第一信号块的复杂程度。In this way, when the subcarrier intervals are different, the terminal device receives the first signal block from the network device at the same preset symbol position in the time slot, which reduces the complexity of the terminal device searching for the first signal block.
在一种可能的设计中,预设符号的符号索引包括2、3、4、5。或者,预设符号的符号索引包括8、9、10、11。In a possible design, the symbol indices of the preset symbols include 2, 3, 4, and 5. Alternatively, the symbol indices of the preset symbols include 8, 9, 10, and 11.
在一种可能的设计中,第一信号块还包括第一同步信号,且第一同步信号位于第一信号块的首个符号。其中,第一同步信号对应的序列与同步信号块SSB中主同步信号PSS对应的序列不同。In a possible design, the first signal block further includes a first synchronization signal, and the first synchronization signal is located in the first symbol of the first signal block. The sequence corresponding to the first synchronization signal is different from the sequence corresponding to the primary synchronization signal PSS in the synchronization signal block SSB.
如此,终端设备接收第一同步信号对应的序列之后,由于第一同步信号对应的序列与同步信号块SSB中主同步信号PSS对应的序列不同,此种情况下,终端设备即可获知第一信号块中的PBCH携带有SRS配置信息。In this way, after the terminal device receives the sequence corresponding to the first synchronization signal, since the sequence corresponding to the first synchronization signal is different from the sequence corresponding to the primary synchronization signal PSS in the synchronization signal block SSB, in this case, the terminal device can know the first signal. The PBCH in the block carries SRS configuration information.
在一种可能的设计中,第一同步信号对应的序列是基于初始序列和循环移位值m确定的。其中,循环移位值m是基于第一同步信号对应的序列长度和目标预设值确定的,目标预设值与
Figure PCTCN2020119758-appb-000001
的取值不同,
Figure PCTCN2020119758-appb-000002
是预设的数值,且用于确定PSS对应的序列,P是基于PSS对应的序列长度和
Figure PCTCN2020119758-appb-000003
取值的数量确定的。
In a possible design, the sequence corresponding to the first synchronization signal is determined based on the initial sequence and the cyclic shift value m. The cyclic shift value m is determined based on the sequence length corresponding to the first synchronization signal and the target preset value, and the target preset value is the same as the
Figure PCTCN2020119758-appb-000001
The value of is different,
Figure PCTCN2020119758-appb-000002
is a preset value and is used to determine the sequence corresponding to PSS, P is based on the sequence length corresponding to PSS and
Figure PCTCN2020119758-appb-000003
The number of values to be taken is determined.
也就是说,在目标预设值与
Figure PCTCN2020119758-appb-000004
的取值不同的情况下,由于循环移位值m是基于第一同步信号对应的序列长度和目标预设值确定的,所以,第一同步信号对应的序列与同步信号块SSB中主同步信号PSS对应的序列不同。如此,用于定位的终端设备检测到第一同步信号对应的序列之后,即可接收第一信号块。
That is, between the target preset and
Figure PCTCN2020119758-appb-000004
In the case of different values, since the cyclic shift value m is determined based on the sequence length corresponding to the first synchronization signal and the target preset value, the sequence corresponding to the first synchronization signal is the same as the main synchronization signal in the synchronization signal block SSB. The sequences corresponding to PSS are different. In this way, after the terminal device for positioning detects the sequence corresponding to the first synchronization signal, it can receive the first signal block.
在一种可能的设计中,循环移位值m满足:In one possible design, the cyclic shift value m satisfies:
m=(n+l)modKm=(n+l)modK
其中,n为整数,且0≤n<K,K为第一同步信号对应的序列长度,l为目标预设值。Wherein, n is an integer, and 0≤n<K, K is the sequence length corresponding to the first synchronization signal, and l is the target preset value.
在一种可能的设计中,第一信号块还包括第二同步信号。第二同步信号是基于第一索引确定的。其中,第一索引指示终端设备所在小区的小区组标识或小区标识;第一索引的取值的数量小于第一预设值。其中,第一预设值可以是
Figure PCTCN2020119758-appb-000005
的取值的数量值。也就是说,第一索引的取值数量少于
Figure PCTCN2020119758-appb-000006
的取值的数量值。
In one possible design, the first signal block also includes a second synchronization signal. The second synchronization signal is determined based on the first index. Wherein, the first index indicates the cell group identifier or the cell identifier of the cell where the terminal device is located; and the number of values of the first index is less than the first preset value. Wherein, the first preset value may be
Figure PCTCN2020119758-appb-000005
The number of values to take. That is to say, the number of values of the first index is less than
Figure PCTCN2020119758-appb-000006
The number of values to take.
由于第一索引的取值数量与第二同步信号对应的序列种类有关。第一索引的取值数量越少,第二同步信号对应的序列种类越少。在终端设备检测第二同步信号对应的序列的情况下,终端设备生成第二同步信号对应的多种序列,终端设备将接收到的第二同步信号对应的序列与终端设备生成的第二同步信号对应的多种序列进行匹配。若终端设备接收到的第二同步信号与终端设备生成的第二同步信号对应的一种序列匹配一致,则终端设备成功检测到第二同步信号对应的序列,反之,若终端设备接收到的第二同步信号对应的序列与 终端设备生成的第二同步信号对应的多种序列匹配不一致,则终端设备未检测到第二同步信号对应的序列。由于第二同步信号对应的序列的种类是有限的,也就降低了终端设备检测第二同步信号的复杂度。Because the number of values of the first index is related to the sequence type corresponding to the second synchronization signal. The smaller the number of values of the first index, the fewer the sequence types corresponding to the second synchronization signal. When the terminal device detects the sequence corresponding to the second synchronization signal, the terminal device generates multiple sequences corresponding to the second synchronization signal, and the terminal device compares the sequence corresponding to the received second synchronization signal with the second synchronization signal generated by the terminal device The corresponding multiple sequences are matched. If the second synchronization signal received by the terminal device matches a sequence corresponding to the second synchronization signal generated by the terminal device, the terminal device successfully detects the sequence corresponding to the second synchronization signal. The sequence corresponding to the second synchronization signal does not match the various sequences corresponding to the second synchronization signal generated by the terminal device, and the terminal device does not detect the sequence corresponding to the second synchronization signal. Since the types of sequences corresponding to the second synchronization signal are limited, the complexity of detecting the second synchronization signal by the terminal device is also reduced.
在一种可能的设计中,第一索引的最大值小于第二预设值。其中,第二预设值是基于
Figure PCTCN2020119758-appb-000007
的取值大小确定的。例如,第一索引的取值集合是
Figure PCTCN2020119758-appb-000008
的取值集合的子集。
Figure PCTCN2020119758-appb-000009
能够取得的最大值为335,第二预设值为335。
In a possible design, the maximum value of the first index is smaller than the second preset value. Wherein, the second preset value is based on
Figure PCTCN2020119758-appb-000007
The size of the value is determined. For example, the set of values for the first index is
Figure PCTCN2020119758-appb-000008
A subset of the set of values.
Figure PCTCN2020119758-appb-000009
The maximum value that can be obtained is 335, and the second preset value is 335.
在一种可能的设计中,第一信号块对应的同步栅格的取值大于SSB对应的同步栅格的取值。In a possible design, the value of the synchronization grid corresponding to the first signal block is greater than the value of the synchronization grid corresponding to the SSB.
如此,若终端设备在一定的带宽内搜索第一信号块,与“同步栅格为1200kHz、1.44MHz”的情况相比,第一信号块对应的同步栅格较大,减少了终端设备搜索第一信号块的次数,节省了终端设备的功耗。In this way, if the terminal equipment searches for the first signal block within a certain bandwidth, compared with the case where the synchronization grid is 1200kHz, 1.44MHz, the synchronization grid corresponding to the first signal block is larger, which reduces the search for the first signal block by the terminal equipment. The number of times a signal block saves the power consumption of the terminal device.
在一种可能的设计中,第一信号块对应的同步栅格的取值范围为2MHz至50MHz。In a possible design, the value range of the synchronization grid corresponding to the first signal block is 2 MHz to 50 MHz.
在一种可能的设计中,SRS配置信息包括以下至少一项:资源周期、资源带宽、符号数量、偏移量。其中,资源周期为SRS资源集的周期,资源带宽为SRS资源集的频域资源大小,符号数量为SRS资源集占用的符号数量,偏移量指示SRS资源集所在的时域资源的预设位置与承载PBCH的时域资源的预设位置之间的时间长度,预设位置包括起始位置和结束位置中的一项。SRS资源集包括至少一个SRS的资源。也就是说,SRS配置信息指示了SRS资源集的位置,如此,终端设备在SRS资源集的资源位置上向网络设备发送SRS。In a possible design, the SRS configuration information includes at least one of the following: resource period, resource bandwidth, number of symbols, and offset. The resource period is the period of the SRS resource set, the resource bandwidth is the frequency domain resource size of the SRS resource set, the number of symbols is the number of symbols occupied by the SRS resource set, and the offset indicates the preset position of the time domain resource where the SRS resource set is located The time length between the preset position of the time domain resource carrying the PBCH, the preset position includes one of a start position and an end position. The SRS resource set includes resources of at least one SRS. That is to say, the SRS configuration information indicates the location of the SRS resource set. In this way, the terminal device sends the SRS to the network device at the resource location of the SRS resource set.
第二方面,本申请实施例提供一种通信方法,该方法的执行主体可以是网络设备,也可以是应用于网络设备中的芯片。下面以执行主体是网络设备为例进行描述。该方法包括:网络设备向终端设备发送第一信号块,其中,第一信号块包括物理广播信道PBCH,PBCH携带探测参考信号SRS配置信息。然后,网络设备根据SRS配置信息接收来自终端设备的SRS。In a second aspect, an embodiment of the present application provides a communication method, and the execution body of the method may be a network device or a chip applied in the network device. The following description takes the execution subject being a network device as an example. The method includes: a network device sends a first signal block to a terminal device, wherein the first signal block includes a physical broadcast channel PBCH, and the PBCH carries sounding reference signal SRS configuration information. Then, the network device receives the SRS from the terminal device according to the SRS configuration information.
在一种可能的设计中,网络设备向终端设备发送第一信号块,包括:在子载波的间隔为第一子载波间隔的情况下,网络设备在预设符号的位置上向终端设备发送第一信号块;或者,在子载波的间隔为第二子载波间隔的情况下,网络设备在预设符号的位置上向终端设备发送第一信号块。In a possible design, sending the first signal block by the network device to the terminal device includes: when the interval of the subcarriers is the first subcarrier interval, the network device sends the first signal block to the terminal device at the position of the preset symbol. A signal block; or, when the interval of the subcarriers is the second subcarrier interval, the network device sends the first signal block to the terminal device at the position of the preset symbol.
在一种可能的设计中,预设符号的符号索引包括2、3、4、5。或者,预设符号的符号索引包括8、9、10、11。In a possible design, the symbol indices of the preset symbols include 2, 3, 4, and 5. Alternatively, the symbol indices of the preset symbols include 8, 9, 10, and 11.
在一种可能的设计中,第一信号块还包括第一同步信号,且第一同步信号位于第一信号块的首个符号。其中,第一同步信号对应的序列与同步信号块SSB中主同步信号PSS对应的序列不同。In a possible design, the first signal block further includes a first synchronization signal, and the first synchronization signal is located in the first symbol of the first signal block. The sequence corresponding to the first synchronization signal is different from the sequence corresponding to the primary synchronization signal PSS in the synchronization signal block SSB.
在一种可能的设计中,第一同步信号对应的序列是基于初始序列和循环移位值m确定的。其中,循环移位值m是基于第一同步信号对应的序列长度和目标预设值确定的,目标预设值与
Figure PCTCN2020119758-appb-000010
的取值不同,
Figure PCTCN2020119758-appb-000011
是预设的数值,且用于确定PSS对应的序列,P是基于PSS对应的序列长度和
Figure PCTCN2020119758-appb-000012
取值的数量确定的。
In a possible design, the sequence corresponding to the first synchronization signal is determined based on the initial sequence and the cyclic shift value m. The cyclic shift value m is determined based on the sequence length corresponding to the first synchronization signal and the target preset value, and the target preset value is the same as the
Figure PCTCN2020119758-appb-000010
The value of is different,
Figure PCTCN2020119758-appb-000011
is a preset value and is used to determine the sequence corresponding to PSS, P is based on the sequence length corresponding to PSS and
Figure PCTCN2020119758-appb-000012
The number of values to be taken is determined.
在一种可能的设计中,循环移位值m满足:In one possible design, the cyclic shift value m satisfies:
m=(n+l)modKm=(n+l)modK
其中,n为整数,且0≤n<K,K为第一同步信号对应的序列长度,l为目标预设值。Wherein, n is an integer, and 0≤n<K, K is the sequence length corresponding to the first synchronization signal, and l is the target preset value.
在一种可能的设计中,第一信号块还包括第二同步信号;第二同步信号是基于第一索引确定的。其中,第一索引指示终端设备所在小区的小区组标识或小区标识;第一索引的取值的数量小于第一预设值。In a possible design, the first signal block further includes a second synchronization signal; the second synchronization signal is determined based on the first index. Wherein, the first index indicates the cell group identifier or the cell identifier of the cell where the terminal device is located; and the number of values of the first index is less than the first preset value.
在一种可能的设计中,第一索引的最大值小于第二预设值。In a possible design, the maximum value of the first index is smaller than the second preset value.
在一种可能的设计中,第一信号块对应的同步栅格的取值大于SSB对应的同步栅格的取值。In a possible design, the value of the synchronization grid corresponding to the first signal block is greater than the value of the synchronization grid corresponding to the SSB.
在一种可能的设计中,第一信号块对应的同步栅格的取值范围为2MHz至50MHz。In a possible design, the value range of the synchronization grid corresponding to the first signal block is 2 MHz to 50 MHz.
在一种可能的设计中,SRS配置信息包括以下至少一项:资源周期、资源带宽、符号数量、偏移量。其中,资源周期为SRS资源集的周期;资源带宽为SRS资源集的频域资源大小;符号数量为SRS资源集占用的符号数量;偏移量指示SRS资源集所在的时域资源的预设位置与承载PBCH的时域资源的预设位置之间的时间长度,预设位置包括起始位置和结束位置中的一项;SRS资源集包括至少一个SRS的资源。In a possible design, the SRS configuration information includes at least one of the following: resource period, resource bandwidth, number of symbols, and offset. The resource period is the period of the SRS resource set; the resource bandwidth is the frequency domain resource size of the SRS resource set; the number of symbols is the number of symbols occupied by the SRS resource set; the offset indicates the preset position of the time domain resource where the SRS resource set is located The time length between the preset position of the time domain resource carrying the PBCH, the preset position includes one of a start position and an end position; the SRS resource set includes at least one SRS resource.
第三方面,本申请实施例提供一种通信装置,该通信装置可以为上述第一方面或第一方面任一种可能的设计中的终端设备,或者为设置于上述终端设备内的装置,或者实现上述终端设备功能的芯片;所述通信装置包括实现上述方法相应的模块、单元、或手段(means),该模块、单元、或means可以通过硬件实现,软件实现,或者通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块或单元。In a third aspect, an embodiment of the present application provides a communication device, where the communication device may be a terminal device in the first aspect or any possible design of the first aspect, or a device disposed in the above-mentioned terminal device, or A chip that realizes the functions of the above-mentioned terminal equipment; the communication device includes a corresponding module, unit, or means (means) for realizing the above-mentioned method, and the module, unit, or means can be realized by hardware, software, or by hardware. accomplish. The hardware or software includes one or more modules or units corresponding to the above functions.
该通信装置包括通信单元和处理单元。其中,通信单元用于接收来自网络设备的第一信号块,其中,第一信号块包括物理广播信道PBCH,PBCH携带探测参考信号SRS配置信息。处理单元用于根据SRS配置信息确定向网络设备发送SRS的资源。通信单元还用于在处理单元确定的资源上向网络设备发送SRS。The communication device includes a communication unit and a processing unit. The communication unit is configured to receive a first signal block from a network device, where the first signal block includes a physical broadcast channel PBCH, and the PBCH carries sounding reference signal SRS configuration information. The processing unit is configured to determine resources for sending the SRS to the network device according to the SRS configuration information. The communication unit is further configured to send the SRS to the network device on the resource determined by the processing unit.
在一种可能的设计中,第一信号块还包括第二同步信号。处理单元还用于根据第二同步信号确定第一索引,其中,第一索引指示通信装置所在小区的小区组标识或小区标识。处理单元还用于根据第一索引,确定通信装置所在小区的物理小区标识PCI,其中,PCI用于解码PBCH。In one possible design, the first signal block also includes a second synchronization signal. The processing unit is further configured to determine a first index according to the second synchronization signal, where the first index indicates a cell group identifier or a cell identifier of a cell where the communication device is located. The processing unit is further configured to determine, according to the first index, the physical cell identifier PCI of the cell where the communication device is located, where the PCI is used to decode the PBCH.
在一种可能的设计中,通信单元具体用于:在子载波的间隔为第一子载波间隔的情况下,在预设符号的位置上接收来自网络设备的第一信号块;或者,在子载波的间隔为第二子载波间隔的情况下,在预设符号的位置上接收来自网络设备的第一信号块。In a possible design, the communication unit is specifically configured to: when the interval of the subcarriers is the first subcarrier interval, receive the first signal block from the network device at the position of the preset symbol; or, in the subcarrier interval When the interval of the carriers is the second sub-carrier interval, the first signal block from the network device is received at the position of the preset symbol.
其中,上述第一方面或第一方面任一种可能的设计中涉及的所有相关内容均可以援引到对应单元的功能描述,在此不再赘述。Wherein, all relevant content involved in the first aspect or any possible design of the first aspect can be cited in the functional description of the corresponding unit, which will not be repeated here.
第四方面,本申请实施例提供一种通信装置,该通信装置可以为上述第一方面或第一方面任一种可能的设计中的网络设备,或者为设置于上述网络设备内的装置,或者实现上述网络设备功能的芯片;所述通信装置包括实现上述方法相应的模块、单元、或手段(means),该模块、单元、或means可以通过硬件实现,软件实现,或者通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块或单元。In a fourth aspect, an embodiment of the present application provides a communication device, and the communication device may be a network device in the first aspect or any possible design of the first aspect, or a device disposed in the network device, or A chip that realizes the functions of the above-mentioned network equipment; the communication device includes a corresponding module, unit, or means (means) for realizing the above-mentioned method, and the module, unit, or means can be realized by hardware, software can be realized, or corresponding software can be executed by hardware accomplish. The hardware or software includes one or more modules or units corresponding to the above functions.
该通信装置包括通信单元和处理单元。其中,处理单元用于确定SRS配置信息。 通信单元用于向终端设备发送第一信号块,其中,第一信号块包括物理广播信道PBCH,PBCH携带探测参考信号SRS配置信息。通信单元,还用于根据SRS配置信息接收来自终端设备的SRS。The communication device includes a communication unit and a processing unit. Wherein, the processing unit is used to determine the SRS configuration information. The communication unit is configured to send a first signal block to the terminal device, where the first signal block includes a physical broadcast channel PBCH, and the PBCH carries sounding reference signal SRS configuration information. The communication unit is further configured to receive the SRS from the terminal device according to the SRS configuration information.
在一种可能的设计中,通信单元具体用于:在子载波的间隔为第一子载波间隔的情况下,在预设符号的位置上向终端设备发送第一信号块;或者,在子载波的间隔为第二子载波间隔的情况下,在预设符号的位置上向终端设备发送第一信号块。In a possible design, the communication unit is specifically configured to: when the interval of the subcarriers is the first subcarrier interval, send the first signal block to the terminal device at the position of the preset symbol; or, in the subcarrier interval In the case where the interval is the second subcarrier interval, the first signal block is sent to the terminal device at the position of the preset symbol.
其中,上述第二方面或第二方面任一种可能的设计中涉及的所有相关内容均可以援引到对应单元的功能描述,在此不再赘述。Wherein, all the relevant content involved in the second aspect or any possible design of the second aspect can be cited in the functional description of the corresponding unit, which is not repeated here.
第五方面,本申请实施例提供了一种通信装置,包括:处理器;所述处理器用于与存储器耦合,并读取存储器中的指令之后,根据所述指令执行如上述第一方面或第一方面任一种可能的设计中的所述的方法。该通信装置可以为上述第一方面或第一方面任一种可能的设计中的终端设备,或者实现上述终端设备功能的芯片。In a fifth aspect, an embodiment of the present application provides a communication device, including: a processor; the processor is configured to be coupled to a memory, and after reading an instruction in the memory, execute the first aspect or the first according to the instruction. The method of any of the possible designs on the one hand. The communication apparatus may be a terminal device in the first aspect or any possible design of the first aspect, or a chip that implements the functions of the terminal device.
第六方面,本申请实施例提供一种芯片,包括逻辑电路和输入输出接口。其中,输入输出接口用于与芯片之外的模块通信,例如,输入输出接口输出SRS,或输入输出接口输入第一信号块。逻辑电路用于运行计算机程序或指令,以实现以上第一方面或第一方面任一种可能的设计提供的通信方法。该芯片可以为实现上述第一方面或第一方面任一种可能的设计中的终端设备功能的芯片。In a sixth aspect, an embodiment of the present application provides a chip, including a logic circuit and an input and output interface. The I/O interface is used for communication with modules other than the chip, for example, the I/O interface outputs the SRS, or the I/O interface inputs the first signal block. The logic circuit is used to run the computer program or instructions to implement the communication method provided by the above first aspect or any possible design of the first aspect. The chip may be a chip that implements the terminal device function in the first aspect or any possible design of the first aspect.
第七方面,本申请实施例提供一种通信装置,该通信装置包括:用于执行上述第二方面或第二方面任一种可能的设计中各个步骤的单元。该通信装置可以为上述第二方面或第二方面任一种可能的设计中的网络设备,或者实现上述网络设备功能的芯片。所述通信装置包括实现上述方法相应的模块、单元、或手段(means),该模块、单元、或手段可以通过硬件实现,软件实现,或者通过硬件执行相应的软件实现。该硬件或软件包括一个或多个与上述功能相对应的模块或单元。In a seventh aspect, an embodiment of the present application provides a communication device, where the communication device includes: a unit for executing each step in the second aspect or any possible design of the second aspect. The communication device may be a network device in the second aspect or any possible design of the second aspect, or a chip that implements the function of the network device. The communication device includes corresponding modules, units, or means for implementing the above method, and the modules, units, or means may be implemented by hardware, software, or by executing corresponding software in hardware. The hardware or software includes one or more modules or units corresponding to the above functions.
第八方面,本申请实施例提供了一种通信装置,包括:处理器和存储器;该存储器用于存储计算机指令,当该处理器执行该指令时,以使该通信装置执行上述第二方面或第二方面任一种可能的设计中的所述的方法。该通信装置可以为上述第二方面或第二方面任一种可能的设计中的网络设备,或者实现上述网络设备功能的芯片。In an eighth aspect, an embodiment of the present application provides a communication device, including: a processor and a memory; the memory is used to store a computer instruction, and when the processor executes the instruction, the communication device executes the above-mentioned second aspect or The method described in any of the possible designs of the second aspect. The communication device may be a network device in the second aspect or any possible design of the second aspect, or a chip that implements the function of the network device.
第九方面,本申请实施例提供了一种通信装置,包括:处理器;所述处理器用于与存储器耦合,并读取存储器中的指令之后,根据所述指令执行如上述第二方面或第二方面任一种可能的设计中的所述的方法。该通信装置可以为上述第二方面或第二方面任一种可能的设计中的网络设备,或者实现上述网络设备功能的芯片。In a ninth aspect, an embodiment of the present application provides a communication device, including: a processor; the processor is configured to be coupled to a memory, and after reading an instruction in the memory, execute the second aspect or the first according to the instruction. The method described in any of the two possible designs. The communication device may be a network device in the second aspect or any possible design of the second aspect, or a chip that implements the function of the network device.
第十方面,本申请实施例提供一种芯片,包括逻辑电路和输入输出接口。其中,输入输出接口用于与芯片之外的模块通信,例如,输入输出接口输入SRS,或输入输出接口输出第一信号块。逻辑电路用于运行计算机程序或指令,以实现以上第二方面或第二方面任一种可能的设计提供的通信方法。该芯片可以为实现上述第二方面或第二方面任一种可能的设计中的网络设备功能的芯片。In a tenth aspect, an embodiment of the present application provides a chip, including a logic circuit and an input and output interface. The input/output interface is used for communication with modules other than the chip, for example, the input/output interface inputs the SRS, or the input/output interface outputs the first signal block. The logic circuit is used to run the computer program or instructions to implement the communication method provided by the second aspect or any possible design of the second aspect. The chip may be a chip that implements the network device function in the second aspect or any possible design of the second aspect.
第十一方面,本申请实施例提供一种计算机可读存储介质,该计算机可读存储介质中存储有指令,当其在计算机上运行时,使得计算机可以执行上述任一方面中任一项的通信方法。In an eleventh aspect, an embodiment of the present application provides a computer-readable storage medium, where instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium runs on a computer, the computer can execute any one of the preceding aspects. communication method.
第十二方面,本申请实施例提供一种包含指令的计算机程序产品,当其在计算机上运行时,使得计算机可以执行上述任一方面中任一项的通信方法。In a twelfth aspect, an embodiment of the present application provides a computer program product including instructions, which, when executed on a computer, enables the computer to execute the communication method of any one of the foregoing aspects.
第十三方面,本申请实施例提供一种电路***,电路***包括处理电路,处理电路被配置为执行如上述任一方面中任一项的通信方法。In a thirteenth aspect, an embodiment of the present application provides a circuit system, the circuit system includes a processing circuit, and the processing circuit is configured to execute the communication method according to any one of the foregoing aspects.
第十四方面,本申请实施例提供一种通信***,该通信***包括上述方面所述的终端设备和上述方面所述的网络设备。In a fourteenth aspect, an embodiment of the present application provides a communication system, where the communication system includes the terminal device described in the foregoing aspect and the network device described in the foregoing aspect.
其中,第二方面至第十四方面中任一种设计所带来的技术效果可参考上文所提供的对应的方法中的有益效果,此处不再赘述。Wherein, for the technical effect brought by any one of the designs of the second aspect to the fourteenth aspect, reference may be made to the beneficial effects in the corresponding method provided above, and details are not described herein again.
附图说明Description of drawings
图1a为本申请实施例提供的一种同步信号块的结构示意图;FIG. 1a is a schematic structural diagram of a synchronization signal block provided by an embodiment of the present application;
图1b为本申请实施例提供的一种同步信号块的位置示意图;FIG. 1b is a schematic diagram of the location of a synchronization signal block provided by an embodiment of the present application;
图2为本申请实施例提供的一种获取配置信息的过程示意图;FIG. 2 is a schematic diagram of a process for obtaining configuration information according to an embodiment of the present application;
图3为本申请实施例提供的一种通信***的架构示意图;FIG. 3 is a schematic diagram of the architecture of a communication system provided by an embodiment of the present application;
图4为本申请实施例提供的一种通信方法的流程示意图;FIG. 4 is a schematic flowchart of a communication method provided by an embodiment of the present application;
图5为本申请实施例提供的一种探测参考信号资源集的位置示意图;FIG. 5 is a schematic diagram of the location of a sounding reference signal resource set provided by an embodiment of the present application;
图6为本申请实施例提供的再一种通信方法的流程示意图;FIG. 6 is a schematic flowchart of still another communication method provided by an embodiment of the present application;
图7为本申请实施例提供的一种通信装置的结构示意图;FIG. 7 is a schematic structural diagram of a communication device according to an embodiment of the present application;
图8为本申请实施例提供的再一种通信装置的结构示意图。FIG. 8 is a schematic structural diagram of still another communication apparatus according to an embodiment of the present application.
具体实施方式Detailed ways
本申请的说明书以及附图中的术语“第一”和“第二”等是用于区别不同的对象,或者用于区别对同一对象的不同处理,而不是用于描述对象的特定顺序。此外,本申请的描述中所提到的术语“包括”和“具有”以及它们的任何变形,意图在于覆盖不排他的包含。例如包含了一系列步骤或单元的过程、方法、***、产品或设备没有限定于已列出的步骤或单元,而是可选地还包括其他没有列出的步骤或单元,或可选地还包括对于这些过程、方法、产品或设备固有的其它步骤或单元。需要说明的是,本申请实施例中,“示例性的”或者“例如”等词用于表示作例子、例证或说明。本申请实施例中被描述为“示例性的”或者“例如”的任何实施例或设计方案不应被解释为比其它实施例或设计方案更优选或更具优势。确切而言,使用“示例性的”或者“例如”等词旨在以具体方式呈现相关概念。The terms "first" and "second" in the description and drawings of the present application are used to distinguish different objects, or to distinguish different processing of the same object, rather than to describe a specific order of the objects. Furthermore, references to the terms "comprising" and "having" in the description of this application, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes other unlisted steps or units, or optionally also Include other steps or units inherent to these processes, methods, products or devices. It should be noted that, in the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations, or illustrations. Any embodiments or designs described in the embodiments of the present application as "exemplary" or "such as" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present the related concepts in a specific manner.
首先,介绍本申请实施例所涉及的技术术语:First, the technical terms involved in the embodiments of the present application are introduced:
1、同步信号块(synchronization signal block,SSB)1. Synchronization signal block (SSB)
在新无线(new radio,NR)中,网络设备周期性地发送SSB。一个SSB包括同步信号同步信号(synchronization signal,SS)和物理广播信道(physical broadcast channel,PBCH)。其中,SS包括主同步信号(primary synchronization signal,PSS)和辅同步信号(secondary synchronization signal,SSS)。PSS和SSS主要作用是帮助终端设备识别小区以及和小区进行同步,PBCH传输了最基本的***信息,例如***帧号、帧内定时信息等。终端设备成功接收SSB是其接入该小区的前提。此外,SSB还包括用于解调PBCH的解调参考信号(demodulation reference signal,DMRS)。In new radio (NR), network devices periodically send SSBs. An SSB includes a synchronization signal (synchronization signal, SS) and a physical broadcast channel (physical broadcast channel, PBCH). Wherein, the SS includes a primary synchronization signal (primary synchronization signal, PSS) and a secondary synchronization signal (secondary synchronization signal, SSS). The main functions of PSS and SSS are to help terminal equipment identify cells and synchronize with cells. PBCH transmits the most basic system information, such as system frame number and intra-frame timing information. Successful reception of the SSB by the terminal equipment is a prerequisite for it to access the cell. In addition, the SSB also includes a demodulation reference signal (demodulation reference signal, DMRS) for demodulating the PBCH.
如图1a所示,在时域上,一个SSB占4个正交频分复用(orthogonal frequency division multiplexin,OFDM)符号,如图1a中符号编号为0至3的4个符号。在频域上,一个SSB 占20个资源块(resource block,RB),也就是240个子载波,在这20个RB内,子载波编号为0~239。PSS位于符号0的中间的127个子载波上,SSS位于符号2的中间的127个子载波上。为了保护PSS和SSS,分别有不同的保护子载波被设为0,也就是保护子载波不用于承载信号,在SSS两侧分别留了8个子载波和9个子载波用于作为保护带子载波,如图1a中的SSS两侧的空白区域就是保护子载波。PBCH占用符号1和符号3的全部子载波,以及占用符号2的全部子载波中除了SSS所占用的子载波之外的剩余的子载波中的一部分子载波(即剩余的子载波中除了保护子载波之外的子载波)。As shown in Fig. 1a, in the time domain, one SSB occupies 4 orthogonal frequency division multiplexin (OFDM) symbols, such as 4 symbols numbered 0 to 3 in Fig. 1a. In the frequency domain, one SSB occupies 20 resource blocks (resource blocks, RBs), that is, 240 subcarriers, and within these 20 RBs, the subcarriers are numbered from 0 to 239. PSS is located on the middle 127 sub-carriers of symbol 0, and SSS is located on the middle 127 sub-carriers of symbol 2. In order to protect the PSS and SSS, different guard subcarriers are set to 0, that is, the guard subcarriers are not used to carry signals, and 8 subcarriers and 9 subcarriers are reserved on both sides of the SSS for use as guardband subcarriers, such as The blank areas on both sides of the SSS in Figure 1a are guard subcarriers. PBCH occupies all sub-carriers of symbol 1 and symbol 3, and occupies a part of the remaining sub-carriers in all sub-carriers of symbol 2 except the sub-carriers occupied by SSS (that is, the remaining sub-carriers except the guard sub-carriers) subcarriers other than the carrier).
关于“SSB的传输”的介绍如下:The introduction of "SSB transmission" is as follows:
在子载波间隔不同的情况下,终端设备在不同的符号位置上接收SSB。示例性的,参见图1b,图1b示出了传输SSB的符号位置。在图1b中,一个方框表示一个符号。一个实线方框表示承载SSB的符号。一个虚线方框表示不承载SSB的符号。在子载波间隔为15kHz的情况下,终端设备在时隙中符号索引为“2、3、4、5”的位置或符号索引为“8、9、10、11”的位置上接收来自网络设备的SSB。在子载波间隔为30kHz的情况下,作为一种可能的实施例,终端设备在时隙中符号索引为“4、5、6、7”的位置、“8、9、10、11”的位置、“2、3、4、5”的位置或“6、7、8、9”的位置上接收来自网络设备的SSB。作为另一种可能的实施例,终端设备在时隙中符号索引为“2、3、4、5”的位置、“8、9、10、11”的位置、“2、3、4、5”的位置或“8、9、10、11”的位置上接收来自网络设备的SSB。也就是说,终端设备接收SSB的符号位置是基于子载波间隔确定的。When the subcarrier spacing is different, the terminal device receives the SSB at different symbol positions. Illustratively, referring to FIG. 1b, FIG. 1b shows symbol positions for transmitting SSBs. In Figure 1b, a box represents a symbol. A solid box represents the symbol carrying the SSB. A dashed box represents symbols that do not carry SSB. When the subcarrier spacing is 15 kHz, the terminal device receives information from the network device at the position of the symbol index "2, 3, 4, 5" or the position of the symbol index "8, 9, 10, 11" in the time slot. SSB. In the case where the subcarrier spacing is 30 kHz, as a possible embodiment, the symbol index of the terminal device in the time slot is the position of "4, 5, 6, 7" and the position of "8, 9, 10, 11" , "2, 3, 4, 5" or "6, 7, 8, 9" to receive the SSB from the network device. As another possible embodiment, the symbol index of the terminal device in the time slot is the position of "2, 3, 4, 5", the position of "8, 9, 10, 11", the position of "2, 3, 4, 5" ” or “8, 9, 10, 11” to receive SSB from network devices. That is, the symbol positions at which the terminal device receives the SSB are determined based on the subcarrier spacing.
需要说明的是,本申请实施例中涉及的SSB是指NR中定义的SSB。It should be noted that the SSB involved in the embodiments of the present application refers to the SSB defined in the NR.
2、PCI、PSS对应的序列和SSS的对应的序列2. The corresponding sequence of PCI, PSS and the corresponding sequence of SSS
在NR中,物理层通过PCI来区分不同的小区。PCI总共1008个,它们被分成336个不同的组(记为
Figure PCTCN2020119758-appb-000013
取值范围是0至335),每个组又包括3个不同的组内标识(记为
Figure PCTCN2020119758-appb-000014
取值范围是0至2)。PCI满足如下公式:
In NR, the physical layer distinguishes different cells through PCI. There are 1008 PCIs in total, and they are divided into 336 different groups (denoted as
Figure PCTCN2020119758-appb-000013
The value range is 0 to 335), and each group includes 3 different intra-group identifiers (denoted as
Figure PCTCN2020119758-appb-000014
The value range is 0 to 2). PCI satisfies the following formula:
Figure PCTCN2020119758-appb-000015
Figure PCTCN2020119758-appb-000015
其中,
Figure PCTCN2020119758-appb-000016
表示物理小区标识,
Figure PCTCN2020119758-appb-000017
是PCI的组标识,
Figure PCTCN2020119758-appb-000018
是组内标识。
Figure PCTCN2020119758-appb-000019
承载于PSS,
Figure PCTCN2020119758-appb-000020
承载于SSS。下面,对PSS对应的序列和SSS的对应的序列生成过程进行介绍。
in,
Figure PCTCN2020119758-appb-000016
represents the physical cell identity,
Figure PCTCN2020119758-appb-000017
is the group ID of the PCI,
Figure PCTCN2020119758-appb-000018
is the group ID.
Figure PCTCN2020119758-appb-000019
carried in PSS,
Figure PCTCN2020119758-appb-000020
carried in SSS. Next, the sequence generation process corresponding to the PSS and the sequence corresponding to the SSS will be introduced.
第一,PSS对应的序列的生成过程:First, the generation process of the sequence corresponding to PSS:
PSS对应的序列为m序列,PSS对应的序列长度为127,即一个PSS对应的序列包括127个序列元素。通过对初始序列进行循环移位,以得到3种PSS对应的序列。PSS对应的序列满足如下公式:The sequence corresponding to the PSS is an m sequence, and the sequence length corresponding to the PSS is 127, that is, the sequence corresponding to one PSS includes 127 sequence elements. The sequences corresponding to the three PSSs are obtained by performing a cyclic shift on the initial sequence. The sequence corresponding to PSS satisfies the following formula:
Figure PCTCN2020119758-appb-000021
Figure PCTCN2020119758-appb-000021
其中,[x(6)x(5)x(4)x(3)x(2)x(1)x(0)]为初始序列,即x(0)和x(3)的取值均为0,x(4) 至x(6)的取值均为1,x(1)和x(2)的取值均为1。n表示序列元素索引。n取值的数量能够体现PSS对应的序列长度,d PSS(n)表示PSS对应的序列中序列元素索引为n的序列元素的取值,m表示循环移位值。mod是取模运算符。
Figure PCTCN2020119758-appb-000022
的取值可以参见公式(1)的相关说明。
Among them, [x(6)x(5)x(4)x(3)x(2)x(1)x(0)] is the initial sequence, that is, the values of x(0) and x(3) are both is 0, x(4) to x(6) are all 1, and x(1) and x(2) are both 1. n represents the sequence element index. The number of n values can reflect the sequence length corresponding to the PSS, d PSS (n) represents the value of the sequence element whose sequence element index is n in the sequence corresponding to the PSS, and m represents the cyclic shift value. mod is the modulo operator.
Figure PCTCN2020119758-appb-000022
For the value of , please refer to the relevant description of formula (1).
在公式(2)中初始序列已知的情况下,基于公式(2)中“x(i+7)=(x(i+4)+x(i))mod2”和初始序列,能够确定x(i+7)的取值。例如,在i的取值为0的情况下,由初始序列可知,x(0)的取值为0,x(4)的取值为1,再结合“x(i+7)=(x(i+4)+x(i))mod2”进行计算,以得到x(7)的取值为1。在i的取值为其它数值的情况下,也可依据上述处理过程确定x(i+7)取值。由循环移位公式可知,m的取值为满足如下计算公式:
Figure PCTCN2020119758-appb-000023
Figure PCTCN2020119758-appb-000024
的取值不同,得到的PSS对应的序列的取值状况也就不一样。在
Figure PCTCN2020119758-appb-000025
存在三种取值的情况下,PSS对应的序列的种类也就有三种。
When the initial sequence in formula (2) is known, based on "x(i+7)=(x(i+4)+x(i))mod2" in formula (2) and the initial sequence, x can be determined The value of (i+7). For example, when the value of i is 0, it can be seen from the initial sequence that the value of x(0) is 0, the value of x(4) is 1, and then combined with "x(i+7)=(x) (i+4)+x(i))mod2" is calculated to obtain the value of x(7) as 1. In the case that the value of i is other values, the value of x(i+7) can also be determined according to the above processing procedure. It can be seen from the cyclic shift formula that the value of m satisfies the following calculation formula:
Figure PCTCN2020119758-appb-000023
Figure PCTCN2020119758-appb-000024
The value of PSS is different, and the value of the sequence corresponding to the obtained PSS is also different. exist
Figure PCTCN2020119758-appb-000025
When there are three values, there are also three types of sequences corresponding to PSS.
第二,SSS对应的序列的生成过程:Second, the generation process of the sequence corresponding to SSS:
SSS对应的序列是长度为127的m序列,即一个SSS对应的序列包括127个序列元素。通过对初始序列进行循环移位,以得到335种SSS对应的序列。SSS对应的序列满足如下公式(3)。The sequence corresponding to the SSS is an m-sequence with a length of 127, that is, a sequence corresponding to an SSS includes 127 sequence elements. The sequences corresponding to 335 SSSs are obtained by cyclic shift of the initial sequence. The sequence corresponding to the SSS satisfies the following formula (3).
在公式(3)中,[x 0(6)x 0(5)x 0(4)x 0(3)x 0(2)x 0(1)x 0(0)]和[x 1(6)x 1(5)x 1(4)x 1(3)x 1(2)x 1(1)x 1(0)]均为初始序列。也就是说,x 0(0)和x 1(0)的取值均为1,x 0(1)至x 0(6)的取值均为0,x 1(1)至x 1(6)的取值均为0。n表示序列元素索引。n取值的数量能够体现SSS对应的序列长度。m 0表示x 0所在序列的循环移位。d SSS(n)表示SSS对应的序列中序列元素索引为n的序列元素的取值,m 1表示x 1所在序列的循环移位值。mod是取模运算符。
Figure PCTCN2020119758-appb-000026
表示向下取整运算。
Figure PCTCN2020119758-appb-000027
的取值和
Figure PCTCN2020119758-appb-000028
的取值可以参见公式(1)的相关说明。
In formula (3), [x 0 (6)x 0 (5)x 0 (4)x 0 (3)x 0 (2)x 0 (1)x 0 (0)] and [x 1 (6 )x 1 (5)x 1 (4)x 1 (3)x 1 (2)x 1 (1)x 1 (0)] are all initial sequences. That is, x 0 (0) and x 1 (0) are both 1, x 0 (1) to x 0 (6) are all 0, and x 1 (1) to x 1 (6 ) takes the value of 0. n represents the sequence element index. The number of n values can reflect the sequence length corresponding to the SSS. m 0 represents the cyclic shift of the sequence where x 0 is located. d SSS (n) represents the value of the sequence element whose sequence element index is n in the sequence corresponding to SSS, and m 1 represents the cyclic shift value of the sequence where x 1 is located. mod is the modulo operator.
Figure PCTCN2020119758-appb-000026
Represents a round-down operation.
Figure PCTCN2020119758-appb-000027
the value of and
Figure PCTCN2020119758-appb-000028
For the value of , please refer to the relevant description of formula (1).
Figure PCTCN2020119758-appb-000029
Figure PCTCN2020119758-appb-000029
在公式(3)中初始序列已知的情况下,基于公式(3)中“x 0(i+7)=(x 0(i+4)+x 0(i))mod2”和初始序列“[x 0(6)x 0(5)x 0(4)x 0(3)x 0(2)x 0(1)x 0(0)]”,能够确定x 0(i+7)的取值。例如,在i的取值为0的情况下,由初始序列可知,x 0(0)的取值为1,x 0(4)的取值为0,再结合“x 0(i+7)=(x 0(i+4)+x 0(i))mod2”进行计算,以得到x 0(7)的取值为1。在i的取值为其它数值的情况下,也可依据上述处理过程确定x(i+7)取值。类似的,基于公式(3)中“x 1(i+7)=(x 1(i+1)+x 1(i))mod2”和初始序列“[x 1(6)x 1(5)x 1(4)x 1(3)x 1(2)x 1(1)x 1(0)]”,能够确定x 1(i+7)的取值。由循环移位公式可知,m 0 的取值为满足如下计算公式:
Figure PCTCN2020119758-appb-000030
m 1的取值为满足如下计算公式:
Figure PCTCN2020119758-appb-000031
Figure PCTCN2020119758-appb-000032
的取值不同,基于
Figure PCTCN2020119758-appb-000033
得到的SSS对应的序列的种类也不一样。而
Figure PCTCN2020119758-appb-000034
的具体取值是基于PSS对应的序列确定的。如此,在
Figure PCTCN2020119758-appb-000035
的取值固定的情况下,SSS对应的序列的种类与
Figure PCTCN2020119758-appb-000036
的取值的数量一致。
In the case where the initial sequence in formula (3) is known, based on formula (3) "x 0 (i+7)=(x 0 (i+4)+x 0 (i))mod2" and the initial sequence " [x 0 (6)x 0 (5)x 0 (4)x 0 (3)x 0 (2)x 0 (1)x 0 (0)]", which can determine the value of x 0 (i+7) value. For example, when the value of i is 0, it can be seen from the initial sequence that the value of x 0 (0) is 1, the value of x 0 (4) is 0, and then combined with "x 0 (i+7) =(x 0 (i+4)+x 0 (i)) mod2" to calculate to obtain the value of x 0 (7) as 1. In the case that the value of i is other values, the value of x(i+7) can also be determined according to the above processing procedure. Similarly, based on formula (3) "x 1 (i+7)=(x 1 (i+1)+x 1 (i))mod2" and the initial sequence "[x 1 (6)x 1 (5) x 1 (4)x 1 (3)x 1 (2)x 1 (1)x 1 (0)]", the value of x 1 (i+7) can be determined. It can be seen from the cyclic shift formula that the value of m 0 satisfies the following calculation formula:
Figure PCTCN2020119758-appb-000030
The value of m 1 satisfies the following calculation formula:
Figure PCTCN2020119758-appb-000031
Figure PCTCN2020119758-appb-000032
The value of is different, based on
Figure PCTCN2020119758-appb-000033
The types of sequences corresponding to the obtained SSS are also different. and
Figure PCTCN2020119758-appb-000034
The specific value of is determined based on the sequence corresponding to the PSS. so, in
Figure PCTCN2020119758-appb-000035
When the value of is fixed, the type of sequence corresponding to SSS is the same as
Figure PCTCN2020119758-appb-000036
The number of values is the same.
3、同步栅格(synchronization raster)3. Synchronization raster
为了让终端设备更快速地检测到同步信号块,并接入小区,NR中规定了同步信号块的同步栅格。例如,在0-3000MHz范围内,同步栅格为1200kHz。在3000MHz-24250MHz范围内,同步栅格为1.44MHz。In order for the terminal device to detect the synchronization signal block more quickly and access the cell, the synchronization grid of the synchronization signal block is specified in the NR. For example, in the 0-3000MHz range, the sync grid is 1200kHz. In the 3000MHz-24250MHz range, the sync grid is 1.44MHz.
4、定位技术4. Positioning technology
目标,定位技术主要包括上行定位技术、下行定位技术和上下行定位技术。在上行定位技术中,网络设备接收来自终端设备的用于定位的探测参考信号(sounding reference signal,SRS)。之后,网络设备检测SRS,以定位终端设备的位置。在下行定位技术中,终端设备接收来自网络设备的定位参考信号(positioning reference signal,PRS)。之后,终端设备检测PRS,以定位终端设备的位置。在上下行定位技术中,网络设备向终端设备发送PRS。相应的,终端设备接收来自网络设备的PRS。并且,终端设备向网络设备发送SRS。相应的,网络设备接收来自终端设备的用于定位的SRS。之后,终端设备和网络设备均执行检测过程,以定位终端设备的位置。Target, positioning technology mainly includes uplink positioning technology, downlink positioning technology and uplink and downlink positioning technology. In the uplink positioning technology, a network device receives a sounding reference signal (sounding reference signal, SRS) for positioning from a terminal device. After that, the network device detects the SRS to locate the location of the terminal device. In the downlink positioning technology, a terminal device receives a positioning reference signal (positioning reference signal, PRS) from a network device. After that, the terminal device detects the PRS to locate the position of the terminal device. In the uplink and downlink positioning technology, the network device sends the PRS to the terminal device. Correspondingly, the terminal device receives the PRS from the network device. And, the terminal device sends the SRS to the network device. Correspondingly, the network device receives the SRS for positioning from the terminal device. After that, both the terminal device and the network device perform a detection process to locate the position of the terminal device.
在上行定位技术中,终端设备获取SRS配置信息之后,根据SRS配置信息,向网络设备发送SRS。相应的,网络设备接收来自终端设备的SRS,进而执行定位计算,以确定终端设备的位置。参见图2,“终端设备获取SRS配置信息”的具体过程如下:In the uplink positioning technology, after acquiring the SRS configuration information, the terminal device sends the SRS to the network device according to the SRS configuration information. Correspondingly, the network device receives the SRS from the terminal device, and then performs positioning calculation to determine the position of the terminal device. Referring to Figure 2, the specific process of "the terminal device obtains SRS configuration information" is as follows:
步骤1,终端设备接收来自网络设备的SSB。之后,终端设备搜索SSB中的同步信号,以获取PCI。终端设备基于PCI对PBCH进行解码,以从PBCH中获取MIB和SSB索引(index),从而使得终端设备与网络设备同步。 Step 1, the terminal device receives the SSB from the network device. After that, the terminal device searches for the synchronization signal in the SSB to obtain the PCI. The terminal device decodes the PBCH based on the PCI to obtain MIB and SSB indices from the PBCH, thereby synchronizing the terminal device with the network device.
步骤2,由于MIB包括CORESET0的时频位置信息。终端设备在CORESET0的时频位置上查找候选的物理下行控制信道(physical downlink control channel,PDCCH)。在查找到候选的PDCCH的情况下,PDCCH承载的DCI指示PDSCH的资源位置。 Step 2, since the MIB includes the time-frequency location information of CORESET0. The terminal device searches for a candidate physical downlink control channel (PDCCH) at the time-frequency position of CORESET0. When a candidate PDCCH is found, the DCI carried by the PDCCH indicates the resource location of the PDSCH.
步骤3,终端设备在DCI指示的PDSCH的资源位置上接收SIB消息(或RRC消息)。其中,SIB消息(或RRC消息)包括SRS配置信息。在终端设备初始接入网络设备的情况下,终端设备从SIB消息中获取SRS配置信息。在终端设备与网络设备的后续通信过程中,终端设备从RRC消息中获取SRS配置信息。 Step 3, the terminal device receives the SIB message (or RRC message) at the PDSCH resource location indicated by the DCI. Wherein, the SIB message (or RRC message) includes SRS configuration information. When the terminal device initially accesses the network device, the terminal device obtains the SRS configuration information from the SIB message. In the subsequent communication process between the terminal device and the network device, the terminal device obtains the SRS configuration information from the RRC message.
综上,“终端设备获取SRS配置信息”的过程复杂,导致终端设备的功耗大。例如,终端设备的大量耗电在PDCCH盲检过程中。To sum up, the process of "acquiring SRS configuration information by a terminal device" is complicated, resulting in high power consumption of the terminal device. For example, a large amount of power consumption of the terminal equipment is in the process of PDCCH blind detection.
有鉴于此,本申请实施例提供一种通信方法,本申请实施例通信方法适用于各种通信***。本申请实施例提供的通信方法可以应用于长期演进(long term evolution,LTE)***,或者第五代(fifth-generation,5G)通信网络,或者其他类似的网络中,或者未来的其它网络中。图3为可适用于本申请实施例通信方法的通信***的架构示意图,该通信***可以包括终端设备30和网络设备。其中,终端设备30的数量可以为一个或多个,网络设备也可以为一个或多个。在图3所示的通信***中,该网络设 备可以包括位于无线接入网内的接入网设备32和位于核心网内的核心网设备33。图3仅为示意图,并不构成对本申请实施例通信方法的适用场景的限定。In view of this, the embodiment of the present application provides a communication method, and the communication method of the embodiment of the present application is applicable to various communication systems. The communication methods provided in the embodiments of the present application may be applied to a long term evolution (long term evolution, LTE) system, or a fifth-generation (fifth-generation, 5G) communication network, or other similar networks, or other future networks. FIG. 3 is a schematic diagram of the architecture of a communication system applicable to the communication method of the embodiment of the present application, and the communication system may include a terminal device 30 and a network device. The number of terminal devices 30 may be one or more, and the number of network devices may also be one or more. In the communication system shown in Fig. 3, the network device may include an access network device 32 located in the wireless access network and a core network device 33 located in the core network. FIG. 3 is only a schematic diagram, and does not constitute a limitation on an applicable scenario of the communication method of the embodiment of the present application.
终端设备30,又称为用户设备(user equipment,UE)、移动台(mobile station,MS)、移动终端(mobile terminal,MT)或者终端(terminal)等,是一种向用户提供语音/数据连通性的设备,例如,具有无线连接功能的手持式设备或车载设备等。终端设备具体可以为: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、或智慧家庭(smart home)中的无线终端,5G通信网络或5G之后的通信网络中的终端设备等,本申请实施例对此不作限定。The terminal device 30, also known as user equipment (UE), mobile station (MS), mobile terminal (MT) or terminal (terminal), etc., is a device that provides voice/data connectivity to users. devices, such as handheld or in-vehicle devices with wireless connectivity. The terminal equipment can be specifically: mobile phone (mobile phone), tablet computer, notebook computer, PDA, mobile internet device (MID), wearable device, virtual reality (virtual reality, VR) device, augmented reality (augmented reality) reality, AR) equipment, wireless terminals in industrial control, wireless terminals in self driving, wireless terminals in remote medical surgery, wireless terminals in smart grid (smart grid) Terminal, wireless terminal in transportation safety, wireless terminal in smart city, or wireless terminal in smart home, terminal equipment in 5G communication network or communication network after 5G, etc. , which is not limited in the embodiments of the present application.
接入网设备32包括一个或多个第一制式网络的设备和第二制式网络的设备。在图3所示的实施例中,第一制式网络的设备可以为下一代LTE基站(next generation eNodeB,ng-eNB),例如,为接入5G核心网的LTE基站,该ng-eNB中可以具有传输点(transmission point,TP)和接收点(receiving point,RP)。其中,终端设备与第一制式网络的设备之间通过“LTE-Uu”链路进行通信。该第二制式网络的设备可以为5G基站(gNodeB,gNB),即为接入5G核心网的5G基站。其中,该gNB是一种部署在无线接入网中满足5G标准的为终端设备提供无线通信功能的装置。其中,终端设备与第二制式网络的设备之间通过“NR-Uu”链路进行通信。第一制式网络的设备和第二制式网络的设备之间通过Xn接口通信。The access network device 32 includes one or more devices of the first-standard network and devices of the second-standard network. In the embodiment shown in FIG. 3 , the device of the first-standard network may be a next generation LTE base station (next generation eNodeB, ng-eNB), for example, an LTE base station accessing a 5G core network, and the ng-eNB may It has a transmission point (TP) and a receiving point (RP). Wherein, the terminal equipment communicates with the equipment of the first standard network through the "LTE-Uu" link. The device of the second-standard network may be a 5G base station (gNodeB, gNB), that is, a 5G base station accessing the 5G core network. Wherein, the gNB is a device deployed in a radio access network that meets the 5G standard and provides a wireless communication function for terminal equipment. Wherein, the terminal equipment communicates with the equipment of the second-standard network through the "NR-Uu" link. The device on the first-standard network communicates with the device on the second-standard network through the Xn interface.
核心网设备33可以分为具有接入和移动性管理功能(access and mobility management function,AMF)与定位管理功能(location management function,LMF)的部件,AMF可以实现网关等功能,LMF可以实现定位中心等功能,如根据其他网元的测量结果对终端设备进行定位计算,AMF与LMF可以进行通信。例如,AMF与LMF之间可以通过NLs接口连接。其中,AMF的主要功能包含:连接管理、移动性管理、注册管理、接入认证和授权、可达性管理、安全上下文管理等接入和移动性相关的功能。接入网设备32和AMF之间通过NG-C接口进行通信。LMF是一种部署在核心网中为终端设备提供定位功能的装置或组件。另外,LMF还包括定位管理组件(location management component,LMC)。LMC也可以集成在下一代无线接入网(next-generation radio access network,NG-RAN)侧的第二制式网络的基站(例如,5G基站(gNodeB,gNB))上。可选的,核心网设备33还包括与LMF连接的增强的服务移动定位中心(enhanced serving mobile location centre,E-SMLC)和/或安全用户面定位平台(secure user plane location platform,SLP)。其中,E-SMLC为负责控制面定位的实体,用于通过获得测量和其他定位信息以管理终端设备的定位,SLP为负责用户面定位的SUPL实体。The core network equipment 33 can be divided into components with access and mobility management functions (access and mobility management functions, AMF) and location management functions (location management functions, LMF). AMF can implement functions such as gateways, and LMF can implement a positioning center. and other functions, such as positioning and calculating the terminal equipment according to the measurement results of other network elements, AMF and LMF can communicate. For example, AMF and LMF can be connected through NLs interface. Among them, the main functions of AMF include: connection management, mobility management, registration management, access authentication and authorization, reachability management, security context management and other functions related to access and mobility. Communication between the access network device 32 and the AMF is performed through the NG-C interface. LMF is a device or component that is deployed in the core network to provide positioning functions for terminal equipment. In addition, LMF also includes a location management component (location management component, LMC). The LMC may also be integrated on a base station (for example, a 5G base station (gNodeB, gNB)) of the second-standard network on the next-generation radio access network (NG-RAN) side. Optionally, the core network device 33 also includes an enhanced serving mobile location center (enhanced serving mobile location center, E-SMLC) and/or a secure user plane location platform (secure user plane location platform, SLP) connected to the LMF. Among them, the E-SMLC is the entity responsible for the positioning of the control plane, and is used to manage the positioning of the terminal equipment by obtaining measurement and other positioning information, and the SLP is the SUPL entity responsible for the positioning of the user plane.
本申请实施例描述的通信***以及业务场景是为了更加清楚的说明本申请实施例的技术方案,并不构成对于本申请实施例提供的技术方案的限定。本领域普通技术人 员可知,随着网络架构的演变和新业务场景的出现,本申请实施例提供的技术方案对于类似的技术问题,同样适用。The communication systems and service scenarios described in the embodiments of the present application are for the purpose of illustrating the technical solutions of the embodiments of the present application more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those of ordinary skill in the art know that with the evolution of the network architecture and the emergence of new service scenarios, the technical solutions provided in the embodiments of the present application are also applicable to similar technical problems.
下面对本申请实施例提供的通信方法进行具体阐述。The communication method provided by the embodiment of the present application is described in detail below.
需要说明的是,本申请下述实施例中各个网元之间的消息名字或消息中各参数的名字等只是一个示例,具体实现中也可以是其他的名字,在此统一说明,以下不再赘述。It should be noted that the name of the message between each network element or the name of each parameter in the message in the following embodiments of this application is just an example, and other names may also be used in the specific implementation. Repeat.
本申请实施例提供一种通信方法,该通信方法应用在上行定位过程中。参见图4,该通信方法包括如下步骤:An embodiment of the present application provides a communication method, and the communication method is applied in an uplink positioning process. Referring to Figure 4, the communication method includes the following steps:
S401、网络设备向终端设备发送第一信号块。相应的,终端设备接收来自网络设备的第一信号块。S401. A network device sends a first signal block to a terminal device. Correspondingly, the terminal device receives the first signal block from the network device.
其中,第一信号块包括PBCH,PBCH携带SRS配置信息。示例性的,第一信号块也可以称为“用于定位的同步信号块(SSB for positioning,SSBP)”。第一信号块占用的符号数量可以是4个。SRS配置信息也可以是用于定位的参考信号的配置信息。The first signal block includes a PBCH, and the PBCH carries SRS configuration information. Exemplarily, the first signal block may also be referred to as a "synchronization signal block for positioning (SSB for positioning, SSBP)". The number of symbols occupied by the first signal block may be four. The SRS configuration information may also be configuration information of reference signals used for positioning.
第一、关于第一信号块中PBCH的介绍如下:First, the introduction of the PBCH in the first signal block is as follows:
在第一信号块占用的符号数量是4个的情况下,PBCH位于第一信号块的第二个符号、第三个符号和第四个符号,即与同步信号块中PBCH的符号位置相同,如图1a所示。In the case that the number of symbols occupied by the first signal block is 4, the PBCH is located in the second symbol, the third symbol and the fourth symbol of the first signal block, that is, the symbol positions of the PBCH in the synchronization signal block are the same, As shown in Figure 1a.
PBCH的载荷(payload)包括MIB。MIB包括SRS配置信息。SRS配置信息包括以下至少一项:The payload of PBCH includes MIB. MIB includes SRS configuration information. The SRS configuration information includes at least one of the following:
第一项、资源周期。其中,资源周期为SRS资源集的周期。例如,资源周期记为T,每间隔一个资源周期T,即存在一个SRS资源集。资源周期的周期长度可以是5ms、20ms、80ms。在MIB中采用2个比特具体是指上述“5ms、20ms、80ms和预定的(reserved)”中的一种周期值。资源周期的周期长度还可以是其他时长,本申请实施例对此不作限定。The first item, resource cycle. The resource period is the period of the SRS resource set. For example, the resource period is denoted as T, and there is one SRS resource set every interval of resource period T. The period length of the resource period may be 5ms, 20ms, 80ms. The use of 2 bits in the MIB specifically refers to a period value among the above-mentioned "5ms, 20ms, 80ms and reserved". The period length of the resource period may also be other durations, which are not limited in this embodiment of the present application.
第二项、资源带宽(bandwidth)。其中,资源带宽为SRS资源集的频域资源大小,即SRS资源集占用的频域资源的大小,如20MHz,40MHz,80MHz,100MHz。在MIB中采用2个比特具体是指上述“20MHz,40MHz,80MHz,100MHz”中的一种带宽值。The second item, resource bandwidth (bandwidth). The resource bandwidth is the size of the frequency domain resources of the SRS resource set, that is, the size of the frequency domain resources occupied by the SRS resource set, such as 20MHz, 40MHz, 80MHz, and 100MHz. The use of 2 bits in the MIB specifically refers to a bandwidth value in the above-mentioned "20MHz, 40MHz, 80MHz, 100MHz".
第三项、符号数量。其中,符号数量为SRS资源集占用的符号数量,即一个时隙内承载SRS资源集的符号数量,如1个或2个符号。在MIB中采用1个比特具体是指上述“1个符号和2个符号”中的一种情况。The third item, the number of symbols. The number of symbols is the number of symbols occupied by the SRS resource set, that is, the number of symbols that carry the SRS resource set in one time slot, such as one or two symbols. The use of 1 bit in the MIB specifically refers to one of the above-mentioned "1 symbol and 2 symbols".
第四项、偏移量(offset)。偏移量指示SRS资源集所在的时域资源的预设位置与承载PBCH的时域资源的预设位置之间的时间长度,预设位置包括起始位置和结束位置中的一项。其中,偏移量指示的时间长度的单位可以是时隙、符号、子帧等。在以时隙为单位的情况下,偏移量指示SRS资源集所在时隙中的时隙与承载PBCH的符号所在的时隙之间间隔的时隙数量,如偏移量的取值为0至7中的任意一个数值。在MIB中采用3个比特具体是指上述“0至7”中的一种取值状况。在以符号为单位的情况下,偏移量指示SRS资源集所在符号中的首个(或尾个)符号与承载PBCH的首个(或尾个)符号之间间隔的符号数量。在以子帧为单位的情况下,偏移量指示SRS资源集所 在子帧与承载PBCH的符号所在子帧之间间隔的符号数量。The fourth item, offset. The offset indicates the time length between the preset position of the time domain resource where the SRS resource set is located and the preset position of the time domain resource carrying the PBCH, and the preset position includes one of a start position and an end position. The unit of the time length indicated by the offset may be a time slot, a symbol, a subframe, or the like. In the case of taking the time slot as the unit, the offset indicates the number of time slots between the time slot in the time slot where the SRS resource set is located and the time slot where the symbol carrying the PBCH is located. For example, the value of the offset is 0 to any value from 7. The use of 3 bits in the MIB specifically refers to one of the above-mentioned values of "0 to 7". In the case of symbol units, the offset indicates the number of symbols spaced between the first (or last) symbol in the symbol where the SRS resource set is located and the first (or last) symbol carrying the PBCH. In the case of taking the subframe as a unit, the offset indicates the number of symbols spaced between the subframe where the SRS resource set is located and the subframe where the symbol carrying the PBCH is located.
在上述四项信息中,SRS资源集包括一个传输SRS的资源或多个传输SRS的资源。In the above four items of information, the SRS resource set includes one resource for transmitting SRS or multiple resources for transmitting SRS.
示例性的,图5示出了一种SRS配置信息的场景示意图。在图5中,一个无填充的方框表示一个时隙。一个竖线填充的方框表示一个第一信号块。一个斜线填充的方框表示一个SRS资源池的资源。在图5所示的场景中,最左侧的第一个无填充的方框表示第一个时隙,最左侧的第二个无填充的方框表示第二个时隙,以此类推。示例性的,资源带宽为20MHz,如图5中所示的SRS资源集的带宽,即从10MHz至30MHz。符号数量为2个。在图5中,SRS资源集在一个时隙中占用前2个符号。偏移量为3个时隙,如图5中所示,SRS资源集所在的时隙与第一信号块所在的时隙之间间隔3个时隙。Exemplarily, FIG. 5 shows a schematic diagram of a scenario of SRS configuration information. In Figure 5, an unfilled box represents a time slot. A box filled with vertical lines represents a first signal block. A box filled with slashes represents the resources of an SRS resource pool. In the scenario shown in Figure 5, the first unfilled box on the far left represents the first time slot, the second unfilled box on the far left represents the second time slot, and so on . Exemplarily, the resource bandwidth is 20MHz, and the bandwidth of the SRS resource set shown in FIG. 5 is from 10MHz to 30MHz. The number of symbols is 2. In Figure 5, the SRS resource set occupies the first 2 symbols in one slot. The offset is 3 time slots. As shown in FIG. 5 , there are 3 time slots between the time slot where the SRS resource set is located and the time slot where the first signal block is located.
需要说明的是,上述“资源周期、资源带宽和符号数量”中的至少一项均可以承载于RRC消息,以传输至终端设备。示例性的,在“资源周期”这一信息承载于RRC消息传输至终端设备的情况下,SRS配置信息不包括资源周期。类似的,在“资源带宽”这一信息承载于RRC消息传输至终端设备的情况下,SRS配置信息不包括资源带宽。在“符号数量”这一信息承载于RRC消息传输至终端设备的情况下,SRS配置信息不包括符号数量。It should be noted that, at least one of the above-mentioned "resource period, resource bandwidth and number of symbols" may be carried in the RRC message for transmission to the terminal device. Exemplarily, in the case that the information of "resource period" is carried in the RRC message and transmitted to the terminal device, the SRS configuration information does not include the resource period. Similarly, in the case where the information of "resource bandwidth" is carried in the RRC message and transmitted to the terminal device, the SRS configuration information does not include the resource bandwidth. In the case where the "number of symbols" information is carried in the RRC message and transmitted to the terminal device, the SRS configuration information does not include the number of symbols.
另外,MIB配置信息还包括以下信息中的一项或者多项:In addition, the MIB configuration information also includes one or more of the following information:
第一项、***帧号(system frame number,SFN)。其中,SFN用于终端设备和网络设备之间的帧同步。SFN的取值由10个比特进行指示,即MIB中的6个最高有效位(most significant bits,MSB)和物理层的4个最低有效位(least significant bit,LSB)共同指示SFN的取值。The first item is the system frame number (SFN). Among them, SFN is used for frame synchronization between terminal equipment and network equipment. The value of SFN is indicated by 10 bits, that is, the 6 most significant bits (most significant bits, MSB) in the MIB and the 4 least significant bits (least significant bits, LSB) of the physical layer together indicate the value of the SFN.
第二项、第一信号块的子载波偏移量,即第一信号块的第0个子载波相对于公共资源块(common resource block,CRB)的第0个子载波的子载波偏移。例如,第一信号块的子载波偏移量的范围为0至15个子载波。在MIB中采用4个比特具体是指上述“0至15”中的一种情况。The second item is the subcarrier offset of the first signal block, that is, the subcarrier offset of the 0th subcarrier of the first signal block relative to the 0th subcarrier of a common resource block (common resource block, CRB). For example, the subcarrier offset of the first signal block ranges from 0 to 15 subcarriers. The use of 4 bits in the MIB specifically refers to one of the above-mentioned "0 to 15".
第三项、半帧指示(half-frame indication)信息。其中,半帧指示信息指示第一信号块在一个时隙中的前半帧或后半帧。在MIB中采用1个比特进行指示。例如,在该比特位的取值为“0”的情况下,第一信号块在一个时隙中的前半帧。在该比特位的取值为“1”的情况下,第一信号块在一个时隙中的后半帧。The third item, half-frame indication (half-frame indication) information. The field indication information indicates the first field or the second field in a time slot of the first signal block. It is indicated by 1 bit in the MIB. For example, when the value of this bit is "0", the first signal block is in the first half of a time slot. When the value of this bit is "1", the first signal block is in the second half of a time slot.
第二、关于第一信号块中第一同步信号的介绍如下:Second, the introduction of the first synchronization signal in the first signal block is as follows:
可选的,第一信号块还包括第一同步信号,且第一同步信号位于第一信号块的首个符号,即与同步信号块中PSS的符号位置相同,如图1a所示。第一同步信号对应的序列与同步信号块SSB中主同步信号PSS对应的序列不同。如此,终端设备在检测到第一同步信号之后,终端设备即可确定第一信号块中的PBCH携带SRS配置信息。Optionally, the first signal block further includes a first synchronization signal, and the first synchronization signal is located in the first symbol of the first signal block, that is, the same as the symbol position of the PSS in the synchronization signal block, as shown in FIG. 1a. The sequence corresponding to the first synchronization signal is different from the sequence corresponding to the primary synchronization signal PSS in the synchronization signal block SSB. In this way, after the terminal device detects the first synchronization signal, the terminal device can determine that the PBCH in the first signal block carries the SRS configuration information.
再对“第一同步信号”的确定过程进行说明:第一同步信号对应的序列是基于初始序列和循环移位值确定的。其中,循环移位值是基于第一同步信号对应的序列长度和目标预设值确定的,目标预设值与
Figure PCTCN2020119758-appb-000037
的取值不同,
Figure PCTCN2020119758-appb-000038
是预设的数值,且用于确定PSS对应的序列,P是基于PSS对应的序列长度和
Figure PCTCN2020119758-appb-000039
取值的数量确定的。例如,PSS对应的序列长度为127,
Figure PCTCN2020119758-appb-000040
取值的数量为3。P是基于比值确定的一个数值。其 中,比值为“PSS对应的序列长度”和“
Figure PCTCN2020119758-appb-000041
取值的数量”之间的比值。P的取值为43。
Figure PCTCN2020119758-appb-000042
的取值为“0、1、2”中的一个数值。换言之,第一同步信号对应的序列是基于初始序列和循环移位值确定的。其中,循环移位值是基于第一同步信号对应的序列长度和目标预设值确定的,目标预设值不是“0、43、86”中的任意一个数值(或目标预设值是除“0、43、86”之外的一个数值)。
Next, the process of determining the "first synchronization signal" will be described: the sequence corresponding to the first synchronization signal is determined based on the initial sequence and the cyclic shift value. The cyclic shift value is determined based on the sequence length corresponding to the first synchronization signal and the target preset value, and the target preset value is the same as the
Figure PCTCN2020119758-appb-000037
The value of is different,
Figure PCTCN2020119758-appb-000038
is a preset value and is used to determine the sequence corresponding to PSS, P is based on the sequence length corresponding to PSS and
Figure PCTCN2020119758-appb-000039
The number of values to be taken is determined. For example, the sequence length corresponding to PSS is 127,
Figure PCTCN2020119758-appb-000040
The number of values taken is 3. P is a value determined based on the ratio. Among them, the ratio is "the sequence length corresponding to PSS" and "
Figure PCTCN2020119758-appb-000041
The ratio between the number of values”. The value of P is 43.
Figure PCTCN2020119758-appb-000042
The value of is one of "0, 1, 2". In other words, the sequence corresponding to the first synchronization signal is determined based on the initial sequence and the cyclic shift value. The cyclic shift value is determined based on the sequence length corresponding to the first synchronization signal and the target preset value, and the target preset value is not any one of "0, 43, 86" (or the target preset value is divided by " a value other than 0, 43, 86").
示例性的,第一同步信号对应的序列的生成过程如下:Exemplarily, the generation process of the sequence corresponding to the first synchronization signal is as follows:
第一同步信号对应的序列也为m序列,第一同步信号对应的序列长度为K。通过对初始序列进行循环移位,以得到第一同步信号对应的序列。第一同步信号对应的序列满足如下公式:The sequence corresponding to the first synchronization signal is also an m sequence, and the length of the sequence corresponding to the first synchronization signal is K. The sequence corresponding to the first synchronization signal is obtained by performing a cyclic shift on the initial sequence. The sequence corresponding to the first synchronization signal satisfies the following formula:
Figure PCTCN2020119758-appb-000043
Figure PCTCN2020119758-appb-000043
其中,[x(6)x(5)x(4)x(3)x(2)x(1)x(0)]为初始序列,即x(0)和x(3)的取值均为0,x(4)至x(6)的取值均为1,x(1)和x(2)的取值均为1。n表示序列元素索引。n取值的数量能够表示第一同步信号对应的序列长度。K表示第一同步信号对应的序列长度。d 1(n)表示第一同步信号对应的序列中序列元素索引n的序列元素的取值。m表示循环移位值。l表示目标预设值。mod是取模运算符。 Among them, [x(6)x(5)x(4)x(3)x(2)x(1)x(0)] is the initial sequence, that is, the values of x(0) and x(3) are both is 0, the values of x(4) to x(6) are all 1, and the values of x(1) and x(2) are both 1. n represents the sequence element index. The number of n values can represent the sequence length corresponding to the first synchronization signal. K represents the sequence length corresponding to the first synchronization signal. d 1 (n) represents the value of the sequence element of the sequence element index n in the sequence corresponding to the first synchronization signal. m represents a cyclic shift value. l represents the target preset value. mod is the modulo operator.
在公式(4)中初始序列已知的情况下,基于公式(4)中“x(i+7)=(x(i+4)+x(i))mod2”和初始序列,能够确定x(i+7)的取值。例如,在i的取值为0的情况下,由初始序列可知,x(0)的取值为0,x(4)的取值为1,再结合“x(i+7)=(x(i+4)+x(i))mod2”进行计算,以得到x(7)的取值为1。在i的取值为其它数值的情况下,也可依据上述处理过程确定x(i+7)取值。由循环移位公式可知,m的取值为满足如下计算公式:m=(0+l)mod127。由于目标预设值l是确定的数值(例如,预设的固定值),所以,基于上述公式(4)即可确定第一同步信号对应的序列。第一同步信号对应的序列长度K的取值可以为127,也可以是其它数值,本申请实施例对此不作限定。在K的取值为127的情况下,目标预设值l的取值是“0至126”中除“0、43、86”之外的一个数值。如此,在基于公式(4)确定第一同步信号对应的序列的情况下,由于目标预设值l的取值不是“0、43、86”,所以,第一同步信号对应的序列与PSS对应的序列不同。When the initial sequence in formula (4) is known, based on "x(i+7)=(x(i+4)+x(i))mod2" in formula (4) and the initial sequence, x can be determined The value of (i+7). For example, when the value of i is 0, it can be seen from the initial sequence that the value of x(0) is 0, the value of x(4) is 1, and then combined with "x(i+7)=(x) (i+4)+x(i))mod2" is calculated to obtain the value of x(7) as 1. In the case that the value of i is other values, the value of x(i+7) can also be determined according to the above processing procedure. It can be known from the cyclic shift formula that the value of m satisfies the following calculation formula: m=(0+1)mod127. Since the target preset value l is a determined value (for example, a preset fixed value), the sequence corresponding to the first synchronization signal can be determined based on the above formula (4). The value of the sequence length K corresponding to the first synchronization signal may be 127, or may be other values, which are not limited in this embodiment of the present application. When the value of K is 127, the value of the target preset value 1 is a value other than "0, 43, 86" among "0 to 126". In this way, when the sequence corresponding to the first synchronization signal is determined based on formula (4), since the value of the target preset value l is not "0, 43, 86", the sequence corresponding to the first synchronization signal corresponds to the PSS sequence is different.
第三、关于第一信号块中第二同步信号的介绍如下:Third, the introduction of the second synchronization signal in the first signal block is as follows:
可选的,第一信号块还包括第二同步信号,且第二同步信号位于第一信号块的第三个符号,即与同步信号块中SSS的符号位置相同(如图1a所示)。第二同步信号是基于第一索引确定的。第一索引指示终端设备所在小区的小区组标识或小区标识。Optionally, the first signal block further includes a second synchronization signal, and the second synchronization signal is located in the third symbol of the first signal block, that is, the same as the symbol position of the SSS in the synchronization signal block (as shown in FIG. 1a ). The second synchronization signal is determined based on the first index. The first index indicates the cell group identifier or the cell identifier of the cell where the terminal device is located.
下面,先对第一索引的取值的数量进行说明:Next, the number of values of the first index will be described first:
第一索引的取值的数量小于第一预设值。第一预设值可以是
Figure PCTCN2020119758-appb-000044
的取值的数量值。在NR中,
Figure PCTCN2020119758-appb-000045
用于确定SSB中SSS对应的序列,具体参见公式(3)。参见公式(1),
Figure PCTCN2020119758-appb-000046
的取值的数量为336。如此,第一预设值为336。换言之,第一索引的取值的数量少于
Figure PCTCN2020119758-appb-000047
的取值的数量。
The number of values of the first index is smaller than the first preset value. The first preset value can be
Figure PCTCN2020119758-appb-000044
The number of values to take. In NR,
Figure PCTCN2020119758-appb-000045
Used to determine the sequence corresponding to the SSS in the SSB, see formula (3) for details. See equation (1),
Figure PCTCN2020119758-appb-000046
The number of values is 336. Thus, the first preset value is 336. In other words, the number of values of the first index is less than
Figure PCTCN2020119758-appb-000047
number of values.
示例性的,第二同步信号对应的序列的生成过程如下:Exemplarily, the generation process of the sequence corresponding to the second synchronization signal is as follows:
第二同步信号对应的序列是长度为K的m序列。第二同步信号对应的序列满足如下公式:The sequence corresponding to the second synchronization signal is an m sequence of length K. The sequence corresponding to the second synchronization signal satisfies the following formula:
Figure PCTCN2020119758-appb-000048
Figure PCTCN2020119758-appb-000048
其中,[x 0(6)x 0(5)x 0(4)x 0(3)x 0(2)x 0(1)x 0(0)]和[x 1(6)x 1(5)x 1(4)x 1(3)x 1(2)x 1(1)x 1(0)]均为初始序列。x 0(0)和x 1(0)的取值均为1,x 0(1)至x 0(6)的取值均为0,x 1(1)至x 1(6)的取值均为0。n表示序列元素索引。n取值的数量能够表示第二同步信号对应的序列长度。K表示第二同步信号对应的序列长度。d 2(n)表示第二同步信号对应的序列中序列元素索引为n的序列元素的取值,
Figure PCTCN2020119758-appb-000049
表示x 0所在序列的循环移位。“m 1=amod112”表示x 1所在序列的循环移位。a表示第一索引。b是一个固定值,如0、1、或2。mod是取模运算符。
Figure PCTCN2020119758-appb-000050
表示向下取整运算。
where [x 0 (6)x 0 (5)x 0 (4)x 0 (3)x 0 (2)x 0 (1)x 0 (0)] and [x 1 (6)x 1 (5 )x 1 (4)x 1 (3)x 1 (2)x 1 (1)x 1 (0)] are all initial sequences. x 0 (0) and x 1 (0) are both 1, x 0 (1) to x 0 (6) are all 0, and x 1 (1) to x 1 (6) are Both are 0. n represents the sequence element index. The number of n values can represent the sequence length corresponding to the second synchronization signal. K represents the sequence length corresponding to the second synchronization signal. d 2 (n) represents the value of the sequence element whose sequence element index is n in the sequence corresponding to the second synchronization signal,
Figure PCTCN2020119758-appb-000049
Represents the cyclic shift of the sequence where x 0 is located. "m 1 =amod112" represents the cyclic shift of the sequence where x 1 is located. a represents the first index. b is a fixed value such as 0, 1, or 2. mod is the modulo operator.
Figure PCTCN2020119758-appb-000050
Represents a round-down operation.
在公式(5)中初始序列已知的情况下,基于公式(5)中“x 0(i+7)=(x 0(i+4)+x 0(i))mod2”和初始序列“[x 0(6)x 0(5)x 0(4)x 0(3)x 0(2)x 0(1)x 0(0)]”,能够确定x 0(i+7)的取值。例如,在i的取值为0的情况下,由初始序列可知,x 0(0)的取值为1,x 0(4)的取值为0,再结合“x 0(i+7)=(x 0(i+4)+x 0(i))mod2”进行计算,以得到x 0(7)的取值为1。在i的取值为其它数值的情况下,也可依据上述处理过程确定x(i+7)取值。类似的,基于公式(5)中“x 1(i+7)=(x 1(i+1)+x 1(i))mod2”和初始序列“[x 1(6)x 1(5)x 1(4)x 1(3)x 1(2)x 1(1)x 1(0)]”,能够确定x 1(i+7)的取值。由循环移位公式可知,m 0的取值为满足如下计算公式:
Figure PCTCN2020119758-appb-000051
m 1的取值为满足如下计算公式:m 1=amod112。b的取值是固定的,第二同步信号对应的序列的种类与第一索引a的取值的数量一致。
In the case where the initial sequence in formula (5) is known, based on formula (5) "x 0 (i+7)=(x 0 (i+4)+x 0 (i))mod2" and the initial sequence " [x 0 (6)x 0 (5)x 0 (4)x 0 (3)x 0 (2)x 0 (1)x 0 (0)]", which can determine the value of x 0 (i+7) value. For example, when the value of i is 0, it can be seen from the initial sequence that the value of x 0 (0) is 1, the value of x 0 (4) is 0, and then combined with "x 0 (i+7) =(x 0 (i+4)+x 0 (i)) mod2" to calculate to obtain the value of x 0 (7) as 1. In the case that the value of i is other values, the value of x(i+7) can also be determined according to the above processing procedure. Similarly, based on formula (5) "x 1 (i+7)=(x 1 (i+1)+x 1 (i))mod2" and the initial sequence "[x 1 (6)x 1 (5) x 1 (4)x 1 (3)x 1 (2)x 1 (1)x 1 (0)]", the value of x 1 (i+7) can be determined. It can be seen from the cyclic shift formula that the value of m 0 satisfies the following calculation formula:
Figure PCTCN2020119758-appb-000051
The value of m 1 satisfies the following calculation formula: m 1 =amod112. The value of b is fixed, and the type of the sequence corresponding to the second synchronization signal is consistent with the number of values of the first index a.
由于第一索引a的取值的数量少于
Figure PCTCN2020119758-appb-000052
的取值的数量,所以,第二同步信号对应的序列的种类少于SSB中SSS的种类。在终端设备检测第二同步信号对应的序列的情况下,终端设备生成第二同步信号对应的多种序列,第二同步信号对应的序列的种类与第一索引a的取值一致。终端设备将接收到的第二同步信号对应的序列与终端设备生成的第二同步信号对应的a种序列进行匹配。若终端设备接收到的第二同步信号与终端设备生成的第二同步信号对应的一种序列匹配一致,则终端设备成功检测到第二同步信号对应的序列,反之,若终端设备接收到的第二同步信号对应的序列与终端设备生成的第二同步信号对应的多 种序列匹配不一致,则终端设备未检测到第二同步信号对应的序列。由于第二同步信号对应的序列的种类是有限的,如第二同步信号对应的序列的种类少于SSB中SSS的种类,也就降低了终端设备检测第二同步信号的复杂度。
Since the number of values of the first index a is less than
Figure PCTCN2020119758-appb-000052
Therefore, the types of sequences corresponding to the second synchronization signal are less than the types of SSSs in the SSB. When the terminal device detects the sequence corresponding to the second synchronization signal, the terminal device generates multiple sequences corresponding to the second synchronization signal, and the type of the sequence corresponding to the second synchronization signal is consistent with the value of the first index a. The terminal device matches the sequence corresponding to the received second synchronization signal with the sequence a corresponding to the second synchronization signal generated by the terminal device. If the second synchronization signal received by the terminal device matches a sequence corresponding to the second synchronization signal generated by the terminal device, the terminal device successfully detects the sequence corresponding to the second synchronization signal. The sequence corresponding to the second synchronization signal does not match the various sequences corresponding to the second synchronization signal generated by the terminal device, and the terminal device does not detect the sequence corresponding to the second synchronization signal. Since the types of sequences corresponding to the second synchronization signal are limited, for example, the types of sequences corresponding to the second synchronization signal are less than the types of SSS in the SSB, the complexity of detecting the second synchronization signal by the terminal device is also reduced.
再对第一索引的取值的大小进行说明:Then explain the size of the value of the first index:
第一索引的最大值小于第二预设值。其中,第二预设值是基于
Figure PCTCN2020119758-appb-000053
的取值大小确定的。参见公式(1),
Figure PCTCN2020119758-appb-000054
能够取得的最大值为335,第二预设值为335。例如,第一索引是“0至9”中的一个数值。此种情况下,第一索引的取值的数量为10,第一索引能够取到的最大值为9。换言之,第一索引的取值集合是
Figure PCTCN2020119758-appb-000055
的取值集合的子集。另外,第二预设值也可以是大于335的一个数值。例如,第一索引的取值为“330至339”中的一个数值。此种情况下,第一索引能够取到的最大值为339。
The maximum value of the first index is smaller than the second preset value. Wherein, the second preset value is based on
Figure PCTCN2020119758-appb-000053
The size of the value is determined. See equation (1),
Figure PCTCN2020119758-appb-000054
The maximum value that can be obtained is 335, and the second preset value is 335. For example, the first index is a numerical value of "0 to 9". In this case, the number of values that the first index can take is 10, and the maximum value that the first index can take is 9. In other words, the set of values for the first index is
Figure PCTCN2020119758-appb-000055
A subset of the set of values. In addition, the second preset value may also be a value greater than 335. For example, the value of the first index is one of "330 to 339". In this case, the maximum value that the first index can take is 339.
另外,在终端设备基于PCI解码PBCH的情况下,参见图6,本申请实施例通信方法还包括:In addition, in the case where the terminal device decodes the PBCH based on PCI, referring to FIG. 6 , the communication method according to the embodiment of the present application further includes:
S401a、终端设备根据第二同步信号确定第一索引。S401a, the terminal device determines the first index according to the second synchronization signal.
其中,第一索引指示终端设备所在小区的小区组标识或小区标识。Wherein, the first index indicates the cell group identifier or the cell identifier of the cell where the terminal device is located.
示例性的,终端设备基于接收的到第二同步信号和公式(5),确定第一索引a的取值。Exemplarily, the terminal device determines the value of the first index a based on the received second synchronization signal and formula (5).
S401b、终端设备根据第一索引,确定终端设备所在小区的PCI。S401b, the terminal device determines the PCI of the cell where the terminal device is located according to the first index.
示例性的,终端设备将公式(5)中第一索引a的取值作为
Figure PCTCN2020119758-appb-000056
的取值,将公式(5)中固定值b的取值作为
Figure PCTCN2020119758-appb-000057
的取值,终端设备再结合公式(1),即可得到PCI。
Exemplarily, the terminal device uses the value of the first index a in formula (5) as
Figure PCTCN2020119758-appb-000056
the value of , take the value of the fixed value b in formula (5) as
Figure PCTCN2020119758-appb-000057
The value of , and the terminal device can get the PCI by combining the formula (1).
其中,PCI用于解码PBCH。例如,“采用PCI解码PBCH”的过程如下:终端设备基于PCI确定SSB中DMRS的位置。终端设备从DMRS的位置上获取DMRS,再基于DMRS获取加扰序列。终端设备再执行解扰、译码、循环冗余校验(cyclic redundancy check,CRC)等过程,以获取PBCH的载荷,详细处理过程可以参见现有技术,此处不再赘述。Among them, PCI is used for decoding PBCH. For example, the process of "using PCI to decode PBCH" is as follows: the terminal device determines the location of the DMRS in the SSB based on the PCI. The terminal device obtains the DMRS from the location of the DMRS, and then obtains the scrambling sequence based on the DMRS. The terminal device then performs descrambling, decoding, cyclic redundancy check (cyclic redundancy check, CRC) and other processes to obtain the payload of the PBCH. For the detailed processing process, reference may be made to the prior art, which will not be repeated here.
如此,终端设备基于检测到的第二同步信号能够确定自身所处小区的PCI,进而对PBCH进行解码,以得到SRS配置信息。In this way, the terminal device can determine the PCI of the cell where it is located based on the detected second synchronization signal, and then decode the PBCH to obtain the SRS configuration information.
第四、关于第一信号块的时频位置的介绍如下:Fourth, the introduction of the time-frequency position of the first signal block is as follows:
可选的,在频域上,第一信号块对应的同步栅格的取值大于SSB对应的同步栅格的取值。例如,第一信号块对应的同步栅格的取值范围为2MHz至50MHz。若终端设备在一定的带宽内搜索第一信号块,与“同步栅格为1200kHz、1.44MHz”的情况相比,第一信号块对应的同步栅格较大,减少了终端设备搜索第一信号块的次数,节省了终端设备的功耗。Optionally, in the frequency domain, the value of the synchronization grid corresponding to the first signal block is greater than the value of the synchronization grid corresponding to the SSB. For example, the value range of the synchronization grid corresponding to the first signal block is 2 MHz to 50 MHz. If the terminal device searches for the first signal block within a certain bandwidth, compared with the case where the synchronization grid is 1200kHz, 1.44MHz, the synchronization grid corresponding to the first signal block is larger, which reduces the search for the first signal by the terminal device. The number of blocks saves the power consumption of the terminal device.
可选的,在时域上,第一信号块在时隙中预设符号的位置上传输。例如,在子载波间隔为第一子载波间隔的情况下,网络设备在预设符号的位置上向终端设备发送第一信号块。相应的,终端设备在预设符号的位置上接收来自网络设备的第一信号块。在子载波间隔为第二子载波间隔的情况下,网络设备在上述预设符号的位置上向终端设备发送第一信号块。相应的,终端设备在上述预设符号的位置上接收来自网络设备的第一信号块。其中,第一子载波间隔与第二子载波间隔不同。示例性的,第一子载波间隔为15kHz,第二子载波间隔为30kHz。示例性的,预设符号的符号索引为连续4 个符号的索引。预设符号的符号索引为2、3、4、5,或者,预设符号的符号索引为8、9、10、11。也就是说,在终端设备接收第一信号块的情况下,终端设备在符号索引为“2、3、4、5”或“8、9、10、11”的符号位置上接收第一信号块。如此,在子载波间隔不同的情况下,该终端设备在时隙中的同一预设符号的位置上接收来自网络设备的第一信号块,降低了终端设备搜索第一信号块的复杂程度。Optionally, in the time domain, the first signal block is transmitted at the position of the preset symbol in the time slot. For example, when the subcarrier spacing is the first subcarrier spacing, the network device sends the first signal block to the terminal device at the position of the preset symbol. Correspondingly, the terminal device receives the first signal block from the network device at the position of the preset symbol. When the subcarrier interval is the second subcarrier interval, the network device sends the first signal block to the terminal device at the position of the preset symbol. Correspondingly, the terminal device receives the first signal block from the network device at the position of the preset symbol. The first subcarrier spacing is different from the second subcarrier spacing. Exemplarily, the first subcarrier spacing is 15 kHz, and the second subcarrier spacing is 30 kHz. Exemplarily, the symbol index of the preset symbol is the index of four consecutive symbols. The symbol indices of the preset symbols are 2, 3, 4, and 5, or the symbol indices of the preset symbols are 8, 9, 10, and 11. That is, in the case where the terminal device receives the first signal block, the terminal device receives the first signal block at the symbol position with the symbol index "2, 3, 4, 5" or "8, 9, 10, 11" . In this way, when the subcarrier intervals are different, the terminal device receives the first signal block from the network device at the same preset symbol position in the time slot, which reduces the complexity of the terminal device searching for the first signal block.
S402、终端设备根据SRS配置信息向网络设备发送SRS。相应的,网络设备根据SRS配置信息接收来自终端设备的SRS。S402. The terminal device sends the SRS to the network device according to the SRS configuration information. Correspondingly, the network device receives the SRS from the terminal device according to the SRS configuration information.
示例性的,仍以图5所示的场景为例,记图5中以左侧的SRS资源集为“SRS资源集1”,SRS资源集1的时域为第六个时隙的前2个符号,SRS资源集1的频域为10MHz至30MHz。终端设备在SRS资源集1的部分资源(或SRS资源集1的全部资源)上向网络设备发送SRS。相应的,网络设备在SRS资源集1的部分资源(或SRS资源集1的全部资源)上接收来自终端设备的SRS。在上行定位的通信过程中,网络设备基于接收到的SRS,执行测量和定位计算的处理过程,以对终端设备进行定位。Exemplarily, still taking the scenario shown in FIG. 5 as an example, in FIG. 5, the SRS resource set on the left is “SRS resource set 1”, and the time domain of SRS resource set 1 is the first 2 of the sixth time slot. symbols, the frequency domain of SRS resource set 1 is 10MHz to 30MHz. The terminal device sends the SRS to the network device on part of the resources of the SRS resource set 1 (or all the resources of the SRS resource set 1). Correspondingly, the network device receives the SRS from the terminal device on part of the resources of the SRS resource set 1 (or all the resources of the SRS resource set 1). In the communication process of uplink positioning, the network device performs the processing of measurement and positioning calculation based on the received SRS, so as to locate the terminal device.
本申请实施例提供的通信方法,终端设备在接收第一同步信号块的情况下,由于第一同步信号块包括PBCH,且PBCH能够携带SRS配置信息。如此,终端设备即可从PBCH中获取到SRS配置信息,终端设备不检测PDCCH和PDSCH等下行信道,即不执行PDCCH盲检过程,也不接收PDSCH,简化了终端设备获取SRS配置信息的过程,从而降低了终端设备的功耗。例如,在一些场景(如工厂场景)中,部分终端设备专用于定位,专用于定位的终端设备执行上述方法之后,能够快速地获取SRS配置信息,并成功发射SRS,降低了专用于定位的终端设备的功耗。对于有利于节省UE功耗的上行定位而言,若UE接入小区后能够迅速获取SRS配置并成功发送SRS,就可以进入休眠模式,最大限度的节省功耗;测量和定位计算的工作都在基站和LMF侧。In the communication method provided by the embodiment of the present application, when the terminal device receives the first synchronization signal block, because the first synchronization signal block includes a PBCH, and the PBCH can carry SRS configuration information. In this way, the terminal device can obtain the SRS configuration information from the PBCH, and the terminal device does not detect downlink channels such as PDCCH and PDSCH, that is, does not perform the PDCCH blind detection process, nor does it receive the PDSCH, which simplifies the process for the terminal device to obtain the SRS configuration information. Thus, the power consumption of the terminal device is reduced. For example, in some scenarios (such as factory scenarios), some terminal devices are dedicated to positioning. After the terminal devices dedicated to positioning execute the above method, they can quickly obtain SRS configuration information and successfully transmit SRS, reducing the number of terminals dedicated to positioning. The power consumption of the device. For uplink positioning that is conducive to saving UE power consumption, if the UE can quickly obtain the SRS configuration and successfully send the SRS after accessing the cell, it can enter the sleep mode to save power consumption to the greatest extent; the work of measurement and positioning calculation is Base station and LMF side.
上述主要从各个网元之间交互的角度对本申请实施例提供的方案进行了介绍。相应的,本申请实施例还提供了通信装置,该通信装置可以为上述方法实施例中的网元,或者包含上述网元的装置,或者为可用于网元的部件。可以理解的是,该通信装置为了实现上述功能,其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本文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。专业技术人员可以对每个特定的应用来使用不同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的范围。The foregoing mainly introduces the solutions provided by the embodiments of the present application from the perspective of interaction between various network elements. Correspondingly, an embodiment of the present application further provides a communication device, and the communication device may be a network element in the foregoing method embodiments, or a device including the foregoing network element, or a component usable for a network element. It can be understood that, in order to realize the above-mentioned functions, the communication apparatus includes corresponding hardware structures and/or software modules for executing each function. Those skilled in the art should easily realize that the present application can be implemented in hardware or a combination of hardware and computer software with the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein. Whether a function is performed by hardware or computer software driving hardware depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.
可选的,本申请实施例提供了一种通信装置(例如,该通信装置可以是芯片或芯片***),该通信装置包括输入输出接口和逻辑电路。比如,以芯片实现为上述方法实施例中图4的终端设备的功能为例,输入输出接口用于输出SRS,输入输出接口还用于输入第一信号块,和/或输入输出接口还用于执行本申请实施例中终端设备侧的其他收发步骤。逻辑电路用于执行终端设备侧中的S401a、S401b,和/或逻辑电路还用于执行本申请实施例中终端设备侧的其他处理步骤。比如,以芯片实现为上述方法实施例中图4的网络设备的功能为例,输入输出接口用于输入SRS,输入输出接口还用于输出第一信号块,和/或输入输出接口还用于执行本申请实施例中网络设备侧的其他收发步骤。逻辑电路用于执行确定SRS配置信息,和/或逻辑电路还用于执行本申请实施例中网络 设备侧的其他处理步骤。Optionally, an embodiment of the present application provides a communication apparatus (for example, the communication apparatus may be a chip or a chip system), and the communication apparatus includes an input and output interface and a logic circuit. For example, taking the chip implemented as the function of the terminal device shown in FIG. 4 in the above method embodiment as an example, the input/output interface is used to output the SRS, the input/output interface is also used to input the first signal block, and/or the input/output interface is also used to output the SRS. Perform other transceiving steps on the terminal device side in the embodiment of the present application. The logic circuit is used to perform S401a and S401b on the terminal device side, and/or the logic circuit is also used to perform other processing steps on the terminal device side in the embodiments of the present application. For example, taking the chip implemented as the function of the network device in FIG. 4 in the above method embodiment as an example, the input/output interface is used for inputting the SRS, the input/output interface is also used for outputting the first signal block, and/or the input/output interface is also used for Perform other transceiving steps on the network device side in this embodiment of the present application. The logic circuit is configured to perform determining the SRS configuration information, and/or the logic circuit is further configured to perform other processing steps on the network device side in the embodiments of the present application.
图7示出了一种通信装置700的结构示意图。该通信装置700可以以软件的形式存在,也可以为设备,或者设备中的组件(比如芯片***)。FIG. 7 shows a schematic structural diagram of a communication apparatus 700 . The communication apparatus 700 may exist in the form of software, or may be a device, or a component in a device (such as a chip system).
该通信装置700包括通信单元703和处理单元702。The communication device 700 includes a communication unit 703 and a processing unit 702 .
通信单元703是该通信装置700的一种接口电路,用于从其它装置接收或向其它装置发送信号。例如,当该通信装置700以芯片的方式实现时,该通信单元703是该芯片用于从其它芯片或装置接收信号的接口电路,或者是该芯片用于向其它芯片或装置发送信号的接口电路。The communication unit 703 is an interface circuit of the communication device 700, and is used for receiving signals from or sending signals to other devices. For example, when the communication device 700 is implemented in the form of a chip, the communication unit 703 is an interface circuit used by the chip to receive signals from other chips or devices, or an interface circuit used by the chip to send signals to other chips or devices .
通信单元703可以包括用于与终端设备通信的通信单元和用于与其它网络设备通信的通信单元,这些通信单元可以集成在一起,也可以独立实现。The communication unit 703 may include a communication unit for communicating with a terminal device and a communication unit for communicating with other network devices, and these communication units may be integrated together or independently implemented.
当通信装置700用于实现上述终端设备的功能时,示例性的,处理单元702可以用于支持通信装置700执行图6中的S401a、S401b,和/或用于本文所描述的方案的其它过程。通信单元703用于支持通信装置700和其他网元(例如网络设备)之间的通信。比如,通信单元用于支持通信装置700执行图4所示的S401、S402,和/或用于本文所描述的方案的其它过程。When the communication apparatus 700 is used to implement the functions of the above-mentioned terminal equipment, for example, the processing unit 702 may be used to support the communication apparatus 700 to perform S401a, S401b in FIG. 6, and/or other processes for the solutions described herein . The communication unit 703 is used to support communication between the communication apparatus 700 and other network elements (eg, network equipment). For example, the communication unit is used to support the communication apparatus 700 to perform S401, S402 shown in FIG. 4, and/or other processes for the solutions described herein.
当通信装置700用于实现上述方法中网络设备的功能时,示例性的,处理单元702可以用于支持通信装置700确定SRS配置信息,和/或用于本文所描述的方案的其它过程。通信单元703用于支持通信装置700和其他网元(例如终端设备)之间的通信。比如,通信单元用于支持通信装置700执行图4所示的S401、S402,和/或用于本文所描述的方案的其它过程。When the communication apparatus 700 is used to implement the functions of the network device in the above method, for example, the processing unit 702 may be used to support the communication apparatus 700 to determine SRS configuration information, and/or other processes for the solutions described herein. The communication unit 703 is used to support communication between the communication apparatus 700 and other network elements (eg, terminal equipment). For example, the communication unit is used to support the communication apparatus 700 to perform S401, S402 shown in FIG. 4, and/or other processes for the solutions described herein.
可选的,通信装置700还可以包括存储单元701,用于存储通信装置700的程序代码和数据,数据可以包括不限于原始数据或者中间数据等。Optionally, the communication apparatus 700 may further include a storage unit 701 for storing program codes and data of the communication apparatus 700, and the data may include but not limited to original data or intermediate data.
其中,处理单元702可以是处理器或控制器,例如可以是中央处理器(central processing unit,CPU),通用处理器,数字信号处理器(digital signal processor,DSP),专用集成电路(application specific integrated circuit,ASIC),现成可编程门阵列(field programmable gate array,FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本申请公开内容所描述的各种示例性的逻辑方框,模块和电路。处理器也可以是实现计算功能的组合,例如包含一个或多个微处理器组合,DSP和微处理器的组合等等。The processing unit 702 may be a processor or a controller, for example, a central processing unit (CPU), a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (application specific integrated circuit) circuit, ASIC), off-the-shelf programmable gate array (field programmable gate array, FPGA) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It may implement or execute the various exemplary logical blocks, modules and circuits described in connection with this disclosure. A processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and the like.
通信单元703可以是通信接口、收发器或收发电路等,其中,该通信接口是统称,在具体实现中,该通信接口可以包括多个接口,例如可以包括:第一接入网设备和第二接入网设备之间的接口和/或其他接口。The communication unit 703 may be a communication interface, a transceiver or a transceiver circuit, etc., where the communication interface is a general term, and in a specific implementation, the communication interface may include multiple interfaces, for example, may include: a first access network device and a second Interfaces and/or other interfaces between access network devices.
存储单元701可以是存储器。The storage unit 701 may be a memory.
当处理单元702为处理器,通信单元703为通信接口,存储单元701为存储器时,本申请实施例所涉及的通信装置800可以为图8所示。When the processing unit 702 is a processor, the communication unit 703 is a communication interface, and the storage unit 701 is a memory, the communication apparatus 800 involved in the embodiment of the present application may be as shown in FIG. 8 .
参阅图8所示,该通信装置800包括:处理器802、收发器803、存储器801。Referring to FIG. 8 , the communication apparatus 800 includes: a processor 802 , a transceiver 803 , and a memory 801 .
其中,收发器803可以为独立设置的发送器,该发送器可用于向其他设备发送信息,该收发器也可以为独立设置的接收器,用于从其他设备接收信息。该收发器也可以是将发送、接收信息功能集成在一起的部件,本申请实施例对收发器的具体实现不做限制。The transceiver 803 may be an independently set transmitter, and the transmitter may be used to send information to other devices, and the transceiver may also be an independently set receiver, used to receive information from other devices. The transceiver may also be a component that integrates the functions of sending and receiving information, and the specific implementation of the transceiver is not limited in this embodiment of the present application.
可选的,通信装置1800还可以包括总线804。其中,收发器803、处理器802以及存储器801可以通过总线804相互连接;总线804可以是外设部件互连标准(peripheral component interconnect,PCI)总线或扩展工业标准结构(extended industry standard architecture,EISA)总线等。所述总线804可以分为地址总线、数据总线、控制总线等。为便于表示,图8中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。Optionally, the communication device 1800 may further include a bus 804 . The transceiver 803, the processor 802 and the memory 801 can be connected to each other through a bus 804; the bus 804 can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus etc. The bus 804 can be divided into an address bus, a data bus, a control bus, and the like. For ease of presentation, only one thick line is used in FIG. 8, but it does not mean that there is only one bus or one type of bus.
本领域普通技术人员可以理解:在上述实施例中,可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时,可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时,全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中,或者从一个计算机可读存储介质向另一个计算机可读存储介质传输,例如,所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line,DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包括一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质,(例如,软盘、硬盘、磁带)、光介质(例如,数字视频光盘(digital video disc,DVD)、或者半导体介质(例如固态硬盘(solid state disk,SSD))等。Those of ordinary skill in the art can understand that: in the above-mentioned embodiments, all or part of them may be implemented by software, hardware, firmware or any combination thereof. When implemented in software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general purpose computer, special purpose computer, computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be downloaded from a website site, computer, server, or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, optical fiber, digital subscriber line, DSL) or wireless (eg, infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that a computer can access, or a data storage device such as a server, a data center, or the like that includes an integration of one or more available media. The available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, digital video disc (DVD), or semiconductor media (eg, solid state disk, SSD)) Wait.
在本申请所提供的几个实施例中,应该理解到,所揭露的***,装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性或其它的形式。In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical or other forms.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络设备上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network devices. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个功能单元独立存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用硬件加软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each functional unit may exist independently, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware, or may be implemented in the form of hardware plus software functional units.
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到本申请可借助软件加必需的通用硬件的方式来实现,当然也可以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来,该计算机软件产品存储在可读取的存储介质中,如计算机的软盘,硬盘或光盘等,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本申请各个实施例所述的方法。From the description of the above embodiments, those skilled in the art can clearly understand that the present application can be implemented by means of software plus necessary general-purpose hardware, and of course hardware can also be used, but in many cases the former is a better implementation manner . Based on this understanding, the technical solutions of the present application can be embodied in the form of software products in essence, or the parts that make contributions to the prior art. The computer software products are stored in a readable storage medium, such as a floppy disk of a computer. , a hard disk or an optical disk, etc., including several instructions to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the various embodiments of the present application.
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,在本申请揭露的技术范围内的变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。The above are only specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and changes or substitutions within the technical scope disclosed in the present application should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims (22)

  1. 一种通信方法,其特征在于,包括:A communication method, comprising:
    终端设备接收来自网络设备的第一信号块,其中,所述第一信号块包括物理广播信道PBCH,所述PBCH携带探测参考信号SRS配置信息;The terminal device receives a first signal block from a network device, where the first signal block includes a physical broadcast channel PBCH, and the PBCH carries sounding reference signal SRS configuration information;
    所述终端设备根据所述SRS配置信息向所述网络设备发送SRS。The terminal device sends the SRS to the network device according to the SRS configuration information.
  2. 根据权利要求1所述的方法,其特征在于,所述第一信号块还包括第二同步信号;所述方法还包括:The method according to claim 1, wherein the first signal block further comprises a second synchronization signal; the method further comprises:
    所述终端设备根据所述第二同步信号确定第一索引,其中,所述第一索引指示所述终端设备所在小区的小区组标识或小区标识;The terminal device determines a first index according to the second synchronization signal, where the first index indicates a cell group identifier or a cell identifier of a cell where the terminal device is located;
    所述终端设备根据所述第一索引,确定所述终端设备所在小区的物理小区标识PCI,其中,所述PCI用于解码所述PBCH。The terminal device determines, according to the first index, a physical cell identifier PCI of the cell where the terminal device is located, where the PCI is used to decode the PBCH.
  3. 根据权利要求1或2所述的方法,其特征在于,所述终端设备接收来自网络设备的第一信号块,包括:The method according to claim 1 or 2, wherein the terminal device receives the first signal block from the network device, comprising:
    在子载波的间隔为第一子载波间隔的情况下,所述终端设备在预设符号的位置上接收来自所述网络设备的所述第一信号块;In the case that the interval of the subcarriers is the first subcarrier interval, the terminal device receives the first signal block from the network device at the position of the preset symbol;
    或者,在所述子载波的间隔为第二子载波间隔的情况下,所述终端设备在所述预设符号的位置上接收来自所述网络设备的所述第一信号块。Or, when the interval of the subcarriers is the second subcarrier interval, the terminal device receives the first signal block from the network device at the position of the preset symbol.
  4. 一种通信方法,其特征在于,包括:A communication method, comprising:
    网络设备向终端设备发送第一信号块,其中,所述第一信号块包括物理广播信道PBCH,所述PBCH携带探测参考信号SRS配置信息;The network device sends a first signal block to the terminal device, where the first signal block includes a physical broadcast channel PBCH, and the PBCH carries sounding reference signal SRS configuration information;
    所述网络设备根据所述SRS配置信息接收来自所述终端设备的SRS。The network device receives the SRS from the terminal device according to the SRS configuration information.
  5. 根据权利要求4所述的方法,其特征在于,所述网络设备向终端设备发送第一信号块,包括:The method according to claim 4, wherein the network device sends the first signal block to the terminal device, comprising:
    在子载波的间隔为第一子载波间隔的情况下,所述网络设备在预设符号的位置上向所述终端设备发送所述第一信号块;In the case that the interval of the subcarriers is the first subcarrier interval, the network device sends the first signal block to the terminal device at the position of the preset symbol;
    或者,在所述子载波的间隔为第二子载波间隔的情况下,所述网络设备在所述预设符号的位置上向所述终端设备发送所述第一信号块。Or, when the interval of the subcarriers is the second subcarrier interval, the network device sends the first signal block to the terminal device at the position of the preset symbol.
  6. 一种通信装置,其特征在于,包括通信单元和处理单元,其中:A communication device, comprising a communication unit and a processing unit, wherein:
    所述通信单元,用于接收来自网络设备的第一信号块,其中,所述第一信号块包括物理广播信道PBCH,所述PBCH携带探测参考信号SRS配置信息;the communication unit, configured to receive a first signal block from a network device, wherein the first signal block includes a physical broadcast channel PBCH, and the PBCH carries sounding reference signal SRS configuration information;
    所述处理单元,用于根据所述SRS配置信息确定向所述网络设备发送SRS的资源;the processing unit, configured to determine the resource for sending the SRS to the network device according to the SRS configuration information;
    所述通信单元,还用于在所述处理单元确定的资源上向所述网络设备发送SRS。The communication unit is further configured to send the SRS to the network device on the resource determined by the processing unit.
  7. 根据权利要求6所述的装置,其特征在于,所述第一信号块还包括第二同步信号;The apparatus of claim 6, wherein the first signal block further comprises a second synchronization signal;
    所述处理单元,还用于根据所述第二同步信号确定第一索引,其中,所述第一索引指示所述通信装置所在小区的小区组标识或小区标识;The processing unit is further configured to determine a first index according to the second synchronization signal, where the first index indicates a cell group identifier or a cell identifier of a cell where the communication device is located;
    所述处理单元,还用于根据所述第一索引,确定所述通信装置所在小区的物理小区标识PCI,其中,所述PCI用于解码所述PBCH。The processing unit is further configured to determine, according to the first index, a physical cell identifier PCI of the cell where the communication device is located, where the PCI is used to decode the PBCH.
  8. 根据权利要求6或7所述的装置,其特征在于,The device according to claim 6 or 7, characterized in that,
    所述通信单元具体用于:在子载波的间隔为第一子载波间隔的情况下,在预设符号的位置上接收来自所述网络设备的所述第一信号块;或者,在所述子载波的间隔为第二子载波间隔的情况下,在所述预设符号的位置上接收来自所述网络设备的所述第一信号块。The communication unit is specifically configured to: receive the first signal block from the network device at the position of a preset symbol when the interval of the sub-carriers is the first sub-carrier interval; or, in the sub-carrier interval When the interval of the carriers is the second subcarrier interval, the first signal block from the network device is received at the position of the preset symbol.
  9. 一种通信装置,其特征在于,包括通信单元和处理单元,其中:A communication device, comprising a communication unit and a processing unit, wherein:
    所述处理单元,用于确定SRS配置信息;the processing unit, configured to determine SRS configuration information;
    所述通信单元,用于向终端设备发送第一信号块,其中,所述第一信号块包括物理广播信道PBCH,所述PBCH携带所述探测参考信号SRS配置信息;the communication unit, configured to send a first signal block to a terminal device, where the first signal block includes a physical broadcast channel PBCH, and the PBCH carries the sounding reference signal SRS configuration information;
    所述通信单元,还用于根据所述SRS配置信息接收来自所述终端设备的SRS。The communication unit is further configured to receive the SRS from the terminal device according to the SRS configuration information.
  10. 根据权利要求9所述的装置,其特征在于,The device of claim 9, wherein:
    所述通信单元具体用于:在子载波的间隔为第一子载波间隔的情况下,在预设符号的位置上向所述终端设备发送所述第一信号块;或者,在所述子载波的间隔为第二子载波间隔的情况下,在所述预设符号的位置上向所述终端设备发送所述第一信号块。The communication unit is specifically configured to: when the interval of subcarriers is the first subcarrier interval, send the first signal block to the terminal device at the position of a preset symbol; or, on the subcarriers In the case where the interval is the second subcarrier interval, the first signal block is sent to the terminal device at the position of the preset symbol.
  11. 根据权利要求1至5任一项所述的方法,或者,根据权利要求6至10任一项所述的装置,其特征在于,所述第一信号块还包括第一同步信号,且所述第一同步信号位于所述第一信号块的首个符号;The method according to any one of claims 1 to 5, or the apparatus according to any one of claims 6 to 10, wherein the first signal block further comprises a first synchronization signal, and the the first synchronization signal is located in the first symbol of the first signal block;
    其中,所述第一同步信号对应的序列与同步信号块SSB中主同步信号PSS对应的序列不同。The sequence corresponding to the first synchronization signal is different from the sequence corresponding to the primary synchronization signal PSS in the synchronization signal block SSB.
  12. 根据权利要求11所述的方法,或者,根据权利要求11所述的装置,其特征在于,所述第一同步信号对应的序列是基于初始序列和循环移位值m确定的;The method according to claim 11, or the device according to claim 11, wherein the sequence corresponding to the first synchronization signal is determined based on an initial sequence and a cyclic shift value m;
    其中,所述循环移位值m是基于所述第一同步信号对应的序列长度和目标预设值确定的,所述目标预设值与
    Figure PCTCN2020119758-appb-100001
    的取值不同,所述
    Figure PCTCN2020119758-appb-100002
    是预设的数值,且用于确定所述PSS对应的序列,所述P是基于所述PSS对应的序列长度和所述
    Figure PCTCN2020119758-appb-100003
    取值的数量确定的。
    The cyclic shift value m is determined based on the sequence length corresponding to the first synchronization signal and a target preset value, and the target preset value is the same as the
    Figure PCTCN2020119758-appb-100001
    different values, the
    Figure PCTCN2020119758-appb-100002
    is a preset value, and is used to determine the sequence corresponding to the PSS, and the P is based on the sequence length corresponding to the PSS and the
    Figure PCTCN2020119758-appb-100003
    The number of values to be taken is determined.
  13. 根据权利要求12所述的方法,或者,根据权利要求12所述的装置,其特征在于,所述循环移位值m满足:The method according to claim 12, or the apparatus according to claim 12, wherein the cyclic shift value m satisfies:
    m=(n+l)modKm=(n+l)modK
    其中,n为整数,且0≤n<K,K为所述第一同步信号对应的序列长度,l为所述目标预设值。Wherein, n is an integer, and 0≤n<K, K is the sequence length corresponding to the first synchronization signal, and l is the target preset value.
  14. 根据权利要求1至5任一项或11至13任一项所述的方法,或者,根据权利要求6至13任一项所述的装置,其特征在于,所述第一信号块还包括第二同步信号;所述第二同步信号是基于第一索引确定的;The method according to any one of claims 1 to 5 or any one of 11 to 13, or the device according to any one of claims 6 to 13, wherein the first signal block further comprises a first signal block. Two synchronization signals; the second synchronization signal is determined based on the first index;
    其中,所述第一索引指示所述终端设备所在小区的小区组标识或小区标识;所述第一索引的取值的数量小于第一预设值。Wherein, the first index indicates a cell group identifier or a cell identifier of the cell where the terminal device is located; and the number of values of the first index is less than a first preset value.
  15. 根据权利要求14所述的方法,或者,根据权利要求14所述的装置,其特征在于,所述第一索引的最大值小于第二预设值。The method according to claim 14, or the apparatus according to claim 14, wherein the maximum value of the first index is smaller than the second preset value.
  16. 根据权利要求1至5任一项或11至15任一项所述的方法,或者,根据权利要求6至15任一项所述的装置,其特征在于,所述第一信号块对应的同步栅格的取值大于SSB对应的同步栅格的取值。The method according to any one of claims 1 to 5 or any one of 11 to 15, or the device according to any one of claims 6 to 15, wherein the synchronization corresponding to the first signal block The value of the grid is greater than the value of the synchronization grid corresponding to the SSB.
  17. 根据权利要求1至5任一项或11至16任一项所述的方法,或者,根据权利要求6至16任一项所述的装置,其特征在于,所述第一信号块对应的同步栅格的取值范围为2MHz至50MHz。The method according to any one of claims 1 to 5 or any one of 11 to 16, or the device according to any one of claims 6 to 16, wherein the synchronization corresponding to the first signal block The grid values range from 2MHz to 50MHz.
  18. 根据权利要求1至5任一项或11至17任一项所述的方法,或者,根据权利要求6至17任一项所述的装置,其特征在于,所述SRS配置信息包括以下至少一项:资源周期、资源带宽、符号数量、偏移量;The method according to any one of claims 1 to 5 or any one of 11 to 17, or the device according to any one of claims 6 to 17, wherein the SRS configuration information includes at least one of the following Items: resource period, resource bandwidth, number of symbols, offset;
    其中,所述资源周期为SRS资源集的周期;Wherein, the resource period is the period of the SRS resource set;
    所述资源带宽为所述SRS资源集的频域资源大小;The resource bandwidth is the frequency domain resource size of the SRS resource set;
    所述符号数量为所述SRS资源集占用的符号数量;The number of symbols is the number of symbols occupied by the SRS resource set;
    所述偏移量指示所述SRS资源集所在的时域资源的预设位置与承载所述PBCH的时域资源的预设位置之间的时间长度;所述预设位置包括起始位置和结束位置中的一项;所述SRS资源集包括至少一个SRS的资源。The offset indicates the time length between the preset position of the time domain resource where the SRS resource set is located and the preset position of the time domain resource carrying the PBCH; the preset position includes a start position and an end position One of Locations; the SRS resource set includes resources of at least one SRS.
  19. 根据权利要求3或5所述的方法,或者,根据权利要求8或10所述的装置,其特征在于,The method according to claim 3 or 5, or the device according to claim 8 or 10, wherein,
    所述预设符号的符号索引包括2、3、4、5;The symbol indices of the preset symbols include 2, 3, 4, and 5;
    或者,所述预设符号的符号索引包括8、9、10、11。Alternatively, the symbol indices of the preset symbols include 8, 9, 10, and 11.
  20. 一种通信装置,其特征在于,包括:处理器和存储器,所述处理器和所述存储器耦合,所述存储器存储有程序指令,当所述存储器存储的程序指令被所述处理器执行时,如权利要求1至3中任一项或权利要求11至19中任一项所述的通信方法被实现,或如权利要求4至5中任一项或权利要求11至19中任一项所述的通信方法被实现。A communication device, comprising: a processor and a memory, the processor is coupled to the memory, the memory stores program instructions, and when the program instructions stored in the memory are executed by the processor, The communication method as claimed in any one of claims 1 to 3 or any one of claims 11 to 19 is implemented, or as claimed in any one of claims 4 to 5 or any one of claims 11 to 19 The described communication method is implemented.
  21. 一种芯片,其特征在于,所述芯片包括逻辑电路和输入输出接口,所述输入输出接口用于与所述芯片之外的模块通信,所述逻辑电路用于运行计算机程序或指令,以实现如权利要求1至3中任一项或权利要求11至19中任一项所述的通信方法,或以实现如权利要求4至5中任一项或权利要求11至19中任一项所述的通信方法。A chip, characterized in that the chip includes a logic circuit and an input-output interface, the input-output interface is used to communicate with modules other than the chip, and the logic circuit is used to run a computer program or instruction to achieve The communication method as claimed in any one of claims 1 to 3 or any one of claims 11 to 19, or to implement the method as claimed in any one of claims 4 to 5 or any one of claims 11 to 19 the communication method described.
  22. 一种计算机可读存储介质,其特征在于,所述计算机可读存储介质存储程序,所述程序被处理器调用时,权利要求1至3中任一项或权利要求11至19中任一项所述的通信方法被执行,或者权利要求4至5中任一项或权利要求11至19中任一项所述的通信方法被执行。A computer-readable storage medium, characterized in that the computer-readable storage medium stores a program, and when the program is called by a processor, any one of claims 1 to 3 or any one of claims 11 to 19 The communication method is carried out, or the communication method of any one of claims 4 to 5 or any one of claims 11 to 19 is carried out.
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