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WO2021056189A1 - Procédé de traitement de signaux de référence, appareil et système - Google Patents

Procédé de traitement de signaux de référence, appareil et système Download PDF

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Publication number
WO2021056189A1
WO2021056189A1 PCT/CN2019/107536 CN2019107536W WO2021056189A1 WO 2021056189 A1 WO2021056189 A1 WO 2021056189A1 CN 2019107536 W CN2019107536 W CN 2019107536W WO 2021056189 A1 WO2021056189 A1 WO 2021056189A1
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WIPO (PCT)
Prior art keywords
value
cyclic shift
symbol
symbols
mapped
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PCT/CN2019/107536
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English (en)
Chinese (zh)
Inventor
史桢宇
黄甦
于莹洁
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to CN201980099718.1A priority Critical patent/CN114450905B/zh
Priority to PCT/CN2019/107536 priority patent/WO2021056189A1/fr
Publication of WO2021056189A1 publication Critical patent/WO2021056189A1/fr
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Definitions

  • This application relates to the field of communication technologies, and in particular to a method, device, and system for processing reference signals.
  • 3GPP TR 38.855 clearly defines the positioning technologies supported by the New Radio (NR), such as downlink positioning technology, uplink positioning technology, and uplink and downlink positioning technology.
  • NR New Radio
  • the uplink positioning and uplink and downlink positioning technologies require the base station to measure the sounding reference signal (SRS) sent by the terminal.
  • SRS sounding reference signal
  • the number of consecutive symbols in a time slot that supports SRS is 1, 2, 4, 8, 12, the port number is 1, 2, 4, the comb value is 2, 4, 8, and the comb value N represents that the SRS is transmitted at the granularity of every N subcarriers, and the SRS transmitted by N terminals can be divided into frequency.
  • the SRS transmitted by N terminals can be divided into frequency.
  • these ports use the same resource element (RE) and sequence. At this time, a cyclic shift is needed to distinguish different ports.
  • RE resource element
  • the cyclic shift in the sequence used by the SRS in the existing NR system is related to the maximum cyclic shift number, the total number of antenna ports, the current port number, and the comb offset value.
  • the cyclic shift phase ⁇ i is expressed as follows:
  • the SRS of different symbols on the same port has the same cyclic shift, which causes the SRS autocorrelation sent by the terminal to be too close to the SRS cross-correlation peaks sent by other terminals, and there is interference between the terminals, which affects the delay estimation accuracy.
  • embodiments of the present application provide a reference signal processing method, device and The system makes the SRS of different symbols on the same port have different cyclic shifts, reduces interference between terminals, and improves the accuracy of time delay estimation.
  • an embodiment of the present application provides a reference signal processing method, including: generating a sequence of a reference signal; mapping the sequence to one or more symbols, wherein the sequences mapped to different symbols have different cycles Shift value; sending one or more symbols mapped with the reference signal to the network device.
  • an embodiment of the present application provides a reference signal processing method, including: receiving one or more symbols, the one or more symbols are mapped with reference signals; wherein, the reference signals mapped to different symbols The sequence of has different cyclic shift values; the reference signal is measured, and the measurement result is fed back.
  • an embodiment of the present application provides an apparatus for processing a reference signal, including: a processing unit, configured to generate a sequence of a reference signal; and map the sequence to one or more symbols, where the mapping to different symbols The sequence of symbols has different cyclic shift values; the sending unit is configured to send one or more symbols mapped with the reference signal to the network device.
  • an embodiment of the present application provides an apparatus for processing a reference signal, including: a receiving unit, configured to receive one or more symbols, the one or more symbols are mapped to the reference signal; wherein, the reference signal is mapped to different The sequence of the reference signal on the symbol has different cyclic shift values; the processing unit is configured to measure the reference signal and feed back the measurement result.
  • the cyclic shift ⁇ i (k) of the sequence mapped to the k-th symbol satisfies:
  • i the i-th port
  • Is the total number of ports; p i represents the current port number;
  • k is the index of the symbol of the sequence mapping
  • x is the primitive element of the finite field GF(N+1), k start is an integer greater than or equal to 0 and less than or equal to N, where the value range of N is 6, 8, 12.
  • the symbol index k satisfies the following correspondence:
  • the symbol index k satisfies the following correspondence:
  • the symbol index k satisfies the following correspondence:
  • the symbol index k satisfies the following correspondence:
  • the It is a random number.
  • the The value of is sent by the network device to the terminal device.
  • the formulas, tables, or corresponding index numbers in the tables included in the above-mentioned implementation manners can be configured by the network device to the terminal device, and the terminal device determines the mapping sequence The cyclic shift value of.
  • the terminal maps the reference signal sequence
  • the cyclic shift on each symbol is different, so that the autocorrelation of the terminal sending the reference signal is staggered with the peak value of the cross-correlation of the reference signal sent by other terminals. It can effectively reduce the interference between terminals, improve the accuracy of positioning parameter estimation, and thereby improve the positioning accuracy.
  • Figure 1 is a schematic diagram of SRS frequency division multiplexing when the comb value in a time slot is 2;
  • FIG. 2 is a schematic diagram of a network structure provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of another network structure provided by an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a reference signal processing method provided by an embodiment of the present application.
  • FIG. 5 is a schematic diagram of a device provided by an embodiment of the present application.
  • Figure 6 is a schematic diagram of another device provided by an embodiment of the present application.
  • FIG. 7 is a schematic diagram of a terminal device provided by an embodiment of the present application.
  • Fig. 8 is a schematic diagram of a network device provided by an embodiment of the present application.
  • the naming or numbering of steps appearing in this application does not mean that the steps in the method flow must be executed in the time/logical sequence indicated by the naming or numbering.
  • the named or numbered process steps can be implemented according to the The technical purpose changes the execution order, as long as the same or similar technical effects can be achieved.
  • the division of modules presented in this application is a logical division. In actual applications, there may be other divisions. For example, multiple modules can be combined or integrated in another system, or some features can be ignored
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, and the indirect coupling or communication connection between the modules may be electrical or other similar forms. There are no restrictions in the application.
  • modules or sub-modules described as separate components may or may not be physically separated, may or may not be physical modules, or may be distributed to multiple circuit modules, and some or all of them may be selected according to actual needs. Module to achieve the purpose of this application program.
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD time division duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • 5G Fifth Generation
  • New Radio New Radio
  • FIG. 2 shows a schematic diagram of an architecture 200 applicable to an embodiment of the present application.
  • the network architecture may specifically include the following network elements:
  • Terminal equipment can be user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote terminal, mobile equipment, user terminal, user agent or user device.
  • the terminal devices involved in the embodiments of the present application may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem.
  • Figure 1 and Figure 2 both take the terminal device as the UE as an example.
  • Network equipment It can be equipment used to communicate with terminal equipment.
  • the network equipment can be an evolved NodeB (eNB or eNodeB) in the LTE system, or it can be a global system for mobile communications,
  • BTS base station
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • NB base station
  • it can also be a wireless controller in a cloud radio access network (cloud radio access network, CRAN) scenario
  • the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, and a 5G network Network equipment or network equipment in the future evolved PLMN network, etc., are not limited in the embodiment of the present application.
  • Mobility management entity can be used to manage the location information, security, and business continuity of terminal equipment.
  • LMU network element it can be integrated in a network device, such as a base station, or it can be separated from the base station. Responsible for receiving uplink signals sent by terminal equipment. In the embodiment of this application, it is assumed that the LMU has the ability to send downlink signals.
  • FIG. 3 shows another schematic diagram of an architecture 300 applicable to an embodiment of the present application.
  • the architecture 300 may specifically include the following network elements:
  • Location management function (LMF) network element can be used for positioning, for example, it is called a location service center or a location center or a location management device. In the embodiments of the present application, they are all called a location management device. It is used to collect the measurement information and location information reported by the base station and the terminal equipment, and it is also responsible for calculating the position of the measurement volume of the base station or the terminal equipment, and determining the location of the terminal equipment.
  • the LMF may be a device or component deployed in the core network to provide a positioning function for terminal equipment.
  • Access and mobility management function (AMF) entities mainly used for mobility management and access management, etc., and can be used to implement mobility management entity (mobility management entity, MME) functions in addition to sessions Functions other than management, such as lawful interception, or access authorization (or authentication) functions. In the embodiment of the present application, it can be used to realize the functions of access and mobility management of network elements.
  • mobility management entity mobility management entity, MME
  • functions other than management such as lawful interception, or access authorization (or authentication) functions.
  • it can be used to realize the functions of access and mobility management of network elements.
  • the UE is connected to the radio access network (NG-RAN) via the next-generation eNodeB (ng-eNB) and gNB through the LTE-Uu and/or NR-Uu interface, respectively; Connect to the core network via AMF through the NG-C interface.
  • the next-generation radio access network (NG-RAN) includes one or more ng-eNBs; NG-RAN may also include one or more gNBs; NG-RAN may also include one or more Ng-eNB and gNB.
  • the ng-eNB is an LTE base station that accesses the 5G core network, and the gNB is a 5G base station that accesses the 5G core network.
  • the core network includes functions such as AMF and LMF. The AMF and LMF are connected through the NLs interface.
  • the ng-eNB in Figures 2 and 3 above can also be replaced with a transmission point (TP) or a transmission and reception point (TRP).
  • TP transmission point
  • TRP transmission and reception point
  • the above-mentioned network architecture applied to the embodiments of the present application is only an example, and the network architecture applicable to the embodiments of the present application is not limited to this. Any network architecture that can realize the functions of the above-mentioned network elements is applicable to the implementation of this application. example.
  • the embodiments of this application can be applied to other positioning systems.
  • network element may also be referred to as an entity, equipment, device, or module, etc., which is not specifically limited in this application.
  • description of "network element” is omitted in part of the description.
  • LMF network element is referred to as LMF.
  • LMF should be understood as LMF network element.
  • LMF entity hereinafter, the description of the same or similar situations will be omitted.
  • the name of the interface between the various network elements described above is only an example, and the name of the interface in a specific implementation may be other names, which is not specifically limited in this application.
  • the name of the message (or signaling) transmitted between the above-mentioned various network elements is only an example, and does not constitute any limitation on the function of the message itself.
  • an embodiment of the present application provides a reference signal processing method 400, including:
  • Step 410 The terminal device generates a sequence of reference signals
  • Step 420 Map the sequence to one or more symbols, where the sequences mapped to different symbols have different cyclic shift values
  • Step 430 Send one or more symbols mapped with the reference signal to the network device.
  • Step 440 The network device receives one or more symbols, the one or more symbols are mapped with reference signals, wherein the sequences mapped to different symbols have different cyclic shift values;
  • Step 450 Measure the reference signal to obtain a measurement result.
  • the cyclic shift ⁇ i (k) for mapping the sequence to the k-th symbol by the terminal device satisfies:
  • i the i-th port
  • Is the total number of ports; p i represents the current port number;
  • the above formula can be sent by the network device to the terminal device, or can be pre-stored by the terminal device.
  • It is a random number, for example, 4,2,0,5,7,1,3,8,2,9,6.
  • the random number may be sent by the network device to the terminal device, or may be pre-stored by the terminal device.
  • the terminal when the terminal is mapping the sequence of the reference signal, the sequence mapped to different symbols has different cyclic shift values, so that the terminal is automatically sending the reference signal.
  • the correlation and the peak value of the cross-correlation of the reference signal sent by other terminals are staggered, which can effectively reduce the interference between terminals, improve the accuracy of positioning parameter estimation, and thereby improve the positioning accuracy.
  • the value of is configured by the network equipment through signaling, and the configured value can also be a set of random numbers or multiple different values.
  • network equipment is configured through DCI or RRC signaling
  • the value of is 5,2,1,4,6,0.
  • x is the primitive element of the finite field GF(N+1). Depending on the value of N+1, the value of x may also be different. In this embodiment, it can be seen that the value of x is related to N, and the terminal can directly obtain the cyclic shift value on each symbol according to the above formula.
  • the above two formulas may be sent by the network device to the terminal device, or may be pre-stored by the terminal device.
  • k start refers to the offset of the cyclic shift on each symbol based on the reference shift value (or referred to as the reference shift value).
  • the reference shift value refers to And the cyclic shift value when k start is 0.
  • k start represents the symbol from which to start offset, Indicates how much the cyclic shift of each symbol is offset from the reference shift value.
  • the value range of k start and k start can be any integer in [0,N].
  • the cyclic shift value of each symbol can be obtained by the above formula. It can also be obtained by looking up a table.
  • the table can be sent to the terminal by the network device, or the table can be pre-stored by the terminal.
  • the table records the reference signal mapping symbols and Correspondence information of values:
  • Table 1 is only an example, and the table stored in the terminal may be the same as recorded in Table 1, or it may only contain the first column and the third column, and may also include other columns on the basis of the first column and the third column. Column, this application is not limited.
  • the finite field must be a prime number in order to find the primitive element in the field.
  • the feature of the primitive element is that the power of the number in the finite field can traverse all the numbers in the finite field.
  • the finite field is taken as GF(7), and 3 is its primitive element. It can be seen that 3 k mod 7, when the value of k changes from 0 to 6, the value of the output value is also Includes all values from 1 to 6, so this feature can be used to make the generated output value between 0 and Random traversal between.
  • 3 k mod 7 when the value of k changes from 0 to 6, the value of the output value is also Includes all values from 1 to 6, so this feature can be used to make the generated output value between 0 and Random traversal between.
  • Table 1 lists the offset of the cyclic shift when the number of symbols is at most 14.
  • the maximum number of symbols in a slot is 14, and the number of symbols mapped by SRS can be ⁇ 1,2,4,8,12 ⁇ .
  • the symbol length is K and the initial When it is 0, then take the first K values in Table 1 as the offset of the cyclic shift.
  • the symbol length is 4, and the 14 values 0, 2, 1, and 5 in the table are taken as the cyclic shift offset of the four symbols of the mapping SRS.
  • K values starting from k start from Table 1 are taken as the offset of the cyclic shift.
  • the disadvantage in this case is that the cyclic shift offset recorded in Table 3 does not conform to the previously used formula.
  • the sequences mapped to different symbols have different cyclic shift values, so that the autocorrelation of the terminal when the reference signal is sent is staggered with the peak value of the cross-correlation of the reference signal sent by other terminals, which can effectively reduce the terminal
  • the interference between the two can improve the accuracy of positioning parameter estimation, thereby improving the positioning accuracy.
  • the finite field is 13, which itself is a prime number, and 2 is its primitive element. It can traverse all the values in the finite field. Therefore, the cyclic offset of each symbol can be obtained based on the formula or Table 4.
  • the foregoing embodiment considers the offset of the cyclic shift from the perspective of the maximum cyclic shift.
  • the arrangement according to the above scheme may cause the maximum cyclic offset to be underutilized.
  • the maximum cyclic shift When it is 12, if the situation in Table 4 is used, then the offsets of the two symbols are 0 and 1, respectively, which does not fully distinguish the maximum offset of 12. Therefore, based on this situation, consider the number of symbols when the reference signal is mapped In a smaller case, for example, when the number of mapped symbols is 2 and 4, other implementation methods can be used to obtain the symbol-level cyclic shift offset.
  • the value satisfies the following formula:
  • Table 5 is sent to the terminal by the network device, or the terminal stores Table 5 in advance, and Table 5 is as follows:
  • Table 5 is only an example, and the table actually stored in the terminal may also include other columns, which are not limited in this application.
  • the second formula above introduces It is to introduce the offset, which represents the offset of each symbol on the cyclic shift value calculated based on the formula, and the value range is Such as when Is 8, When the value is 5, add 5 to the above ⁇ 0,4 ⁇ to get the cyclic shift value of the two symbols ⁇ 5,1 ⁇ .
  • the cyclic shift offset on each symbol can also be obtained based on the look-up table, for example, Table 6:
  • the cyclic shift on each symbol is different, which can effectively reduce the interference between terminals and improve the accuracy of positioning parameter estimation. In turn, the positioning accuracy is improved.
  • the execution subject of processing the reference signal may be either a terminal device or a component (for example, a chip or a circuit) that can be used in a terminal device.
  • FIG. 5 shows a schematic block diagram of a reference signal processing apparatus 500 according to an embodiment of the present application.
  • the device 500 includes the following units.
  • a generating unit 510 configured to generate a reference signal sequence; map the sequence to one or more symbols, wherein the sequences mapped to different symbols have different cyclic shift values;
  • the sending unit 520 is configured to send one or more symbols mapped with the reference signal to a network device.
  • an embodiment of the present application also provides a schematic diagram of a reference signal processing apparatus 600, and the apparatus 600 includes the following units.
  • the processing unit 620 is configured to measure the reference signal to obtain a measurement result.
  • the value is 8; when the comb value is 4, The value is 12; when the comb value is 8, The value has not yet been determined.
  • the value can be 6 or 12, or other values.
  • Is the total number of ports; p i represents the current port number;
  • It is a random number, for example, 4,2,0,5,7,1,3,8,2,9,6.
  • the random number may be sent to the terminal by the network device, or the random number may be pre-stored by the terminal.
  • the value of is configured by the network equipment through signaling, and the configured value can also be a set of random numbers or multiple different values.
  • network equipment is configured through DCI or RRC signaling
  • the value of is 5,2,1,4,6,0.
  • the value of, the formula can be sent to the terminal by the network device, or pre-stored by the terminal.
  • the Meet the following formula:
  • x is the primitive element of the finite field GF(N+1). Depending on the value of N+1, the value of x may also be different. In this embodiment, it can be seen that the value of x is related to N, and the terminal can directly obtain the cyclic shift value on each symbol according to the above formula.
  • k start refers to the offset of the cyclic shift on each symbol based on the reference shift value (or referred to as the reference shift value).
  • the reference shift value refers to And the cyclic shift value when k start is 0.
  • k start represents the symbol from which to start the offset, Indicates how much the cyclic shift of each symbol is offset from the reference shift value.
  • the value range of k start and k start can be any integer in [0,N].
  • the cyclic shift offset of each symbol can be obtained by the above formula. It can also be obtained by looking up a table.
  • the table can be sent to the terminal by the network device, or the table can be pre-stored by the terminal.
  • the table records the reference signal mapping symbols and Correspondence information of values:
  • Table 1 is only an example, and the table stored in the terminal may be the same as recorded in Table 1, or it may only contain the first column and the third column, and may also include other columns on the basis of the first column and the third column. Column, this application is not limited.
  • the finite field must be a prime number in order to find the primitive element in the field.
  • the feature of the primitive element is that the power of the number in the finite field can traverse all the numbers in the finite field.
  • the finite field is taken as GF(7), and 3 is its primitive element. It can be seen that 3 k mod 7, when the value of k changes from 0 to 6, the value of the output value is also Including all the values from 1 to 6, this feature makes the generated output value from 0 to Random traversal between.
  • 3 k mod 7 when the value of k changes from 0 to 6, the value of the output value is also Including all the values from 1 to 6, this feature makes the generated output value from 0 to Random traversal between.
  • Table 1 lists the offset of the cyclic shift when the number of symbols is at most 14.
  • the maximum number of symbols in a slot is 14, and the number of symbols mapped by SRS can be 1, 2, 4, 8, or 12.
  • the symbol length is K and the initial When it is 0, then take the first K values in the table as the offset of the cyclic shift.
  • the symbol length is 4, and the 4 values 0, 2, 1, and 5 in Table 1 are taken as the cyclic shift offset of the four symbols of the mapping SRS.
  • K values starting from k start from Table 1 are taken as the offset of the cyclic shift.
  • the foregoing embodiment considers the offset of the cyclic shift from the perspective of the maximum cyclic shift. But when the number of symbols mapped by the reference signal is small, the arrangement according to the above scheme may cause the maximum cyclic offset to be underutilized, such as when the number of symbols is 2 and the maximum cyclic shift is 12. If the situation in Table 4 is used, then the offsets of the two symbols are 0 and 1, which does not fully distinguish the maximum offset of 12. Therefore, based on this situation, consider the case where the number of symbols is small, such as the reference signal mapping When the number of symbols is small, for example, when the number of mapped symbols is 2 and 4, other implementation methods can be used to obtain the symbol-level cyclic shift value.
  • Table 5 Another way of implementation can also be a table lookup.
  • the terminal stores Table 5, and Table 5 is as follows:
  • the second formula above introduces It is the introduction of offset, which represents the offset of each symbol on the cyclic shift value calculated based on the formula, and its value range is For example, when the maximum CS is 8, When the value is 5, add 5 to the above ⁇ 0,4 ⁇ , and the cyclic shift offset on the two symbols is ⁇ 5,1 ⁇ .
  • the cyclic shift offset on each symbol can also be obtained based on the look-up table, for example, Table 6:
  • the above-exemplified centralized method allows the terminal to map the sequence of the reference signal, and the sequence mapped to different symbols has different cyclic shift values, so that the autocorrelation of the terminal sending the reference signal and the peak value of the cross-correlation of the reference signal sent by other terminals Staggering can effectively reduce interference between terminals, improve the accuracy of positioning parameter estimation, and thereby improve positioning accuracy.
  • the embodiment of the present application also provides a communication device 700.
  • the communication device 700 may be a terminal device or a chip.
  • the communication device 700 may be used to execute the foregoing method embodiments.
  • FIG. 7 shows a simplified schematic diagram of the structure of the terminal device. It is easy to understand and easy to illustrate.
  • the terminal device uses a mobile phone as an example.
  • the terminal equipment includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the terminal device, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminal equipment may not have input and output devices.
  • the terminal device includes a transceiving unit 710 and a processing unit 720.
  • the transceiving unit 710 may also be referred to as a transceiver, a transceiver, a transceiving device, and so on.
  • the processing unit 720 may also be referred to as a processor, a processing board, a processing module, a processing device, and so on.
  • the device for implementing the receiving function in the transceiving unit 710 can be regarded as the receiving unit
  • the device for implementing the sending function in the transceiving unit 710 can be regarded as the sending unit, that is, the transceiving unit 710 includes a receiving unit and a sending unit.
  • the processing unit 720 is configured to execute the foregoing method embodiment.
  • the transceiving unit 710 is used for related transceiving operations in the foregoing method embodiments.
  • the transceiver unit 710 is used to send one or more symbols.
  • FIG. 7 is only an example and not a limitation, and the foregoing terminal device including a transceiver unit and a processing unit may not rely on the structure shown in FIG. 7.
  • the embodiment of the present application also provides a communication device 800, and the communication device 800 may be a network device or a chip.
  • the communication device 800 may be used to execute the foregoing method embodiments.
  • FIG. 8 shows a simplified schematic diagram of the base station structure.
  • the base station includes part 810 and part 820.
  • the 810 part is mainly used for the transmission and reception of radio frequency signals and the conversion between radio frequency signals and baseband signals; the 820 part is mainly used for baseband processing and control of base stations.
  • the 810 part can generally be called a transceiver unit, transceiver, transceiver circuit, or transceiver.
  • the 820 part is usually the control center of the base station, and may generally be referred to as a processing unit, which is used to control the base station to perform the processing operations on the network device side in the foregoing method embodiments.
  • the transceiver unit of part 810 may also be called a transceiver or a transceiver, etc., which includes an antenna and a radio frequency unit, and the radio frequency unit is mainly used for radio frequency processing.
  • the device for implementing the receiving function in part 810 can be regarded as the receiving unit, and the device for implementing the sending function as the sending unit, that is, the part 810 includes the receiving unit and the sending unit.
  • the receiving unit may also be called a receiver, a receiver, or a receiving circuit, etc.
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • FIG. 8 is only an example and not a limitation, and the foregoing network device including a transceiver unit and a processing unit may not rely on the structure shown in FIG. 8.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems, or windows operating systems.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • processors mentioned in the embodiment of this application may be a central processing unit (Central Processing Unit, CPU), or other general-purpose processors, digital signal processors (Digital Signal Processors, DSPs), and application-specific integrated circuits (Central Processing Unit, CPU).
  • CPU Central Processing Unit
  • DSPs Digital Signal Processors
  • CPU Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the memory mentioned in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (Random Access Memory, RAM), which is used as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • DDR SDRAM Double Data Rate Synchronous Dynamic Random Access Memory
  • Enhanced SDRAM, ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • Synchronous Link Dynamic Random Access Memory Synchronous Link Dynamic Random Access Memory
  • DR RAM Direct Rambus RAM
  • the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component
  • the memory storage module
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are merely illustrative, for example, the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components may be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of the present application essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disks or optical disks and other media that can store program codes. .

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

Abstract

La présente invention concerne un procédé de traitement de signaux de référence, un appareil et un système. Le procédé comprend les étapes consistant à : générer une séquence de signaux de référence, la phase αi, l d'un décalage cyclique de la séquence de signaux de référence étant liée à un facteur de phase aléatoire, i indiquant que les signaux de référence sont envoyés à l'aide d'un ième port et l représentant le nombre de symboles, l'indice de symbole ou le numéro de symbole du mappage de la séquence ; et mapper la séquence sur un ou plusieurs symboles, puis l'envoyer. Dans les solutions techniques fournies dans les modes de réalisation de la présente invention, une rotation de phase au niveau symbole est ajoutée lors de la génération de la séquence de signaux de référence de telle sorte que les décalages cycliques de signaux de référence ayant des symboles différents sur le même port sont différents, ce qui peut réduire l'interférence entre des terminaux et améliorer la précision de l'estimation de retard.
PCT/CN2019/107536 2019-09-24 2019-09-24 Procédé de traitement de signaux de référence, appareil et système Ceased WO2021056189A1 (fr)

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CN201980099718.1A CN114450905B (zh) 2019-09-24 2019-09-24 一种参考信号处理方法、装置及系统
PCT/CN2019/107536 WO2021056189A1 (fr) 2019-09-24 2019-09-24 Procédé de traitement de signaux de référence, appareil et système

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WO2024259606A1 (fr) * 2023-06-20 2024-12-26 华为技术有限公司 Procédé de détection sans fil et appareil
CN120434092A (zh) * 2024-02-05 2025-08-05 华为技术有限公司 一种通信方法及装置

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