WO2021046823A1 - 一种参考信号处理方法、装置及系统 - Google Patents

一种参考信号处理方法、装置及系统 Download PDF

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Publication number
WO2021046823A1
WO2021046823A1 PCT/CN2019/105791 CN2019105791W WO2021046823A1 WO 2021046823 A1 WO2021046823 A1 WO 2021046823A1 CN 2019105791 W CN2019105791 W CN 2019105791W WO 2021046823 A1 WO2021046823 A1 WO 2021046823A1
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sequence
index
symbol
value
random
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PCT/CN2019/105791
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English (en)
French (fr)
Inventor
于莹洁
史桢宇
黄甦
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华为技术有限公司
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2019/105791 priority Critical patent/WO2021046823A1/zh
Priority to PCT/CN2019/109696 priority patent/WO2021046948A1/zh
Priority to CN202311704772.9A priority patent/CN117834364A/zh
Priority to CN201980099651.1A priority patent/CN114287123B/zh
Publication of WO2021046823A1 publication Critical patent/WO2021046823A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00Modulated-carrier systems
    • H04L27/26Systems using multi-frequency codes

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 adopted 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 phase ⁇ i of the cyclic shift 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 system , So that the cyclic shifts of the SRS of different symbols on the same port are different, reduce interference between terminals, and improve 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, wherein the phase ⁇ i,l of the cyclic shift of the sequence is related to a random phase factor, where i represents The i-th port is used to send the reference signal, where l represents the number of symbols or the symbol index or the symbol number of the sequence mapping, wherein the random phase factor represents that the sequence mapping has different cyclic shift values when different symbols are mapped. ; Map the sequence to one or more symbols and send.
  • the technical solution provided by the embodiments of this application introduces a random phase factor, so that the sequence mapping has a different cyclic shift on each symbol, so that the autocorrelation of the reference signal sent by the terminal is staggered with the peak value of the cross-correlation of the reference signal sent by other terminals. Effectively reduce the interference between terminals, improve the accuracy of positioning parameter estimation, and thereby improve positioning accuracy.
  • the random phase factor is specifically related to any one of the following parameters: the symbol index corresponding to the symbol mapped by the sequence; or, the symbol index corresponding to the symbol mapped by the sequence, and The time slot index corresponding to the mapped time slot; or the sequence generated by computer search.
  • the random phase factor is:
  • phase ⁇ i, i of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • N CS is an integer greater than or equal to 2, or, and the same;
  • n rand is used to determine the random phase rotation on different symbols
  • n rand satisfies the following formula:
  • n rand satisfies the following formula:
  • l represents the symbol index in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • the random phase factor is:
  • phase ⁇ i,l of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • N CS is an integer greater than or equal to 2, or, and the same;
  • n rand is used to determine the random phase rotation on different symbols
  • n rand satisfies the following formula:
  • n rand satisfies the following formula:
  • l represents the number of symbols or symbol index or symbol number in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • the random phase factor is:
  • phase ⁇ i,l of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • N CS is an integer greater than or equal to 2, or, and the same;
  • n rand is used to determine the random phase rotation on different symbols
  • n rand satisfies the following formula:
  • l represents the symbol index in the slot
  • c(i) is the pseudo-random sequence
  • the initial value c init is Indicates sequence index or resource index
  • the value of K is an integer greater than or equal to 0;
  • n rand satisfies the following formula:
  • l represents the number of symbols or symbol index or symbol number in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • the random phase factor is
  • phase ⁇ i,l of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • N CS is an integer greater than or equal to 2, or, and the same;
  • n rand is used to determine the random phase rotation on different symbols
  • n rand satisfies the following formula:
  • n rand satisfies the following formula:
  • l represents the symbol index in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • the sequence is a pseudo-random sequence.
  • the random phase factor is: (-j lgr u,v (n)) or
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • u is a preset value, or the value of u is related to the slot index and symbol index;
  • ru,v (l) is a sequence generated by computer search;
  • an embodiment of the present application also provides a reference signal processing method, the method includes: receiving one or more symbols from a terminal; obtaining a reference signal, wherein the cyclic shift phase of the sequence of the reference signal ⁇ i ,l is related to a random phase factor, where i represents that the reference signal is sent through the i-th port, and l represents the number of symbols or symbol indexes or symbol numbers of the sequence mapping, where the random phase factor represents all
  • the sequence mapping has different cyclic shift values for different symbols; and the reference signal is measured.
  • the random phase factor is specifically related to any one of the following parameters: the symbol index corresponding to the symbol mapped by the sequence; or the symbol index corresponding to the symbol mapped by the sequence And the time slot index corresponding to the mapped time slot; or the sequence generated by computer search.
  • the random factor is:
  • phase ⁇ i,l of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • n rand is used to represent random phase rotation on different symbols, where n rand satisfies the following formula:
  • l represents the symbol index in the slot
  • c(i) is the pseudo-random sequence
  • the initial value c init is Indicates sequence index or resource index
  • the value of K is an integer greater than or equal to 0;
  • n rand satisfies the following formula:
  • l represents the number of symbols or symbol index or symbol number in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • the random phase factor is:
  • phase ⁇ i, i of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • n rand represents random phase rotation on different symbols, where n rand satisfies the following formula:
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index, and the value of K can be an integer ⁇ 0;
  • n rand satisfies the following formula:
  • l represents the number of symbols or symbol index or symbol number in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • the sequence is a pseudo-random sequence.
  • the random phase factor is -j lgr u,v (l), or,
  • phase ⁇ i,l of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • u is the preset value, or the value of u is related to the slot index and symbol index;
  • ru,v (l) is the sequence generated by computer search; when the sequence length is M ZC ⁇ 6,12,18,24 ⁇ , the sequence expression is:
  • an embodiment of the present application further provides an apparatus for reference signal processing, including: a processing unit, configured to generate a sequence of a reference signal, wherein the cyclic shift phase of the sequence ⁇ i,l and the random Phase factor correlation, where i indicates that the i-th port is used to transmit the reference signal, l indicates the number of symbols or symbol index or symbol number of the sequence mapping, and the random phase factor indicates that the sequence is mapped in different The symbols have different cyclic shift values; the processing unit is also used to map the sequence to one or more symbols; the sending unit is used to send the one or more symbols.
  • the random phase factor is specifically related to any one of the following parameters:
  • the symbol index corresponding to the symbol mapped by the sequence or the symbol index corresponding to the symbol mapped by the sequence and the slot index corresponding to the mapped slot; or the sequence generated by a computer search.
  • the random phase factor is:
  • phase ⁇ i,l of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • N CS is an integer greater than or equal to 2, or, and the same;
  • n rand is used to determine the random phase rotation on different symbols
  • n rand satisfies the following formula:
  • l represents the symbol index in the slot
  • c(i) is the pseudo-random sequence
  • the initial value c init is Indicates sequence index or resource index
  • the value of K is an integer greater than or equal to 0; or, n rand satisfies the following formula:
  • l represents the number of symbols or symbol index or symbol number in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • the random phase factor is:
  • the phase ⁇ i,l of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • N CS is an integer greater than or equal to 2, or, and the same;
  • n rand is used to determine the random phase rotation on different symbols
  • n rand satisfies the following formula:
  • l represents the symbol index in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • the sequence is a pseudo-random sequence.
  • the random phase factor is: (-j lgr u,v (n)), or,
  • i the i-th port
  • l the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • u is the preset value, or the value of u is related to the slot index and symbol index;
  • ru,v (l) is the sequence generated by computer search; when the sequence length is M ZC ⁇ 6,12,18,24 ⁇ , the sequence expression is:
  • a reference signal processing device includes: a receiving unit, configured to receive one or more symbols from a terminal, and a processing unit, configured to obtain a reference signal, wherein the cyclic shift phase of the sequence of the reference signal ⁇ i,l is related to a random phase factor, where i represents that the reference signal is sent through the i-th port, and l represents the number of symbols or symbol indexes or symbol numbers of the sequence mapping, where the random phase factor It means that the sequence mapping has different cyclic shift values in different symbols; the processing unit is also used to measure the reference signal.
  • the random phase factor is specifically related to any one of the following parameters: the symbol index corresponding to the symbol mapped by the sequence; or, the symbol index corresponding to the symbol mapped by the sequence, and The time slot index corresponding to the mapped time slot; or the sequence generated by computer search.
  • the random factor is:
  • phase ⁇ i,l of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • n rand is used to represent random phase rotation on different symbols, where n rand satisfies the following formula:
  • l represents the symbol index in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • the random phase factor is:
  • the phase ⁇ i,l of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • n rand represents random phase rotation on different symbols, where n rand satisfies the following formula:
  • l represents the number of symbols or symbol index or symbol number in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer ⁇ 0;
  • n rand satisfies the following formula:
  • l represents the number of symbols or symbol index or symbol number in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • the sequence is a pseudo-random sequence.
  • the random phase factor is -j lgr u,v (l), or,
  • phase ⁇ i,l of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • u is the preset value, or the value of u is related to the slot index and symbol index;
  • ru,v (l) is the sequence generated by computer search; when the sequence length is M ZC ⁇ 6,12, 18,24 ⁇ , the sequence expression is:
  • the embodiments of the present application also provide a computer-readable storage medium, the storage medium stores instructions, and when the instructions are executed on a computer, the computer executes the steps described in the first aspect or the first aspect.
  • the method described in any possible implementation manner, or the computer is caused to execute the method described in the second aspect or any one of the possible implementation manners of the second aspect.
  • an embodiment of the present application also provides a device, including a processor and a memory, the memory stores instructions, and when the instructions are executed, the processor is used to execute the first aspect or the first aspect.
  • a device including a processor and a memory
  • the memory stores instructions, and when the instructions are executed, the processor is used to execute the first aspect or the first aspect.
  • the method described in any possible implementation manner, or the computer is caused to execute the method described in the second aspect or any one of the possible implementation manners of the second aspect.
  • an embodiment of the present application further provides a communication system, including a network device and a terminal device, where the terminal device includes the device as described in the third aspect or any one of the possible implementation manners of the third aspect, and, The network equipment includes the device described in the fourth aspect or any one of the possible implementation manners of the fourth aspect.
  • the technical solution provided by the embodiments of this application introduces a random phase factor to make the sequence mapping on each symbol have a different cyclic shift, so that the autocorrelation of the reference signal sent by the terminal 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.
  • Fig. 2 and Fig. 3 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.
  • Evolved serving mobile location center can be used for positioning, for example, called a positioning service center or a positioning center or a positioning management device.
  • the MME and LMUs are all called positioning management devices. 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 terminal device can be connected to the radio access network via the eNodeB through the LTE-Uu interface.
  • the E-SMLC and the LMU are connected through the SLm interface, and the E-SMLC and the MME are connected through the SLs interface.
  • 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 positioning management device refers to a network element that can manage the serving cell and neighboring cells.
  • the location management device can be a part of the core network or integrated into the access network device.
  • the location management device may be the LMF in the core network shown in FIG. 3, or may be the MME and LMU shown in the figure.
  • the positioning management device may also be referred to as a positioning center. This application does not limit the name of the location management device. In the future evolution of the technology, the location management device may be given other names.
  • 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 various 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 a reference signal, the phase ⁇ i,l of the cyclic shift of the sequence is related to a random phase factor, where i represents the i-th port is used to transmit the reference signal, and l represents the sequence The number of mapped symbols or the symbol index or the symbol number, wherein the random phase factor indicates that the sequence mapping has different cyclic shift values when different symbols are mapped;
  • Step 420 Map the sequence to one or more symbols
  • Step 430 Send the one or more symbols.
  • Step 440 The network device receives one or more symbols to obtain the reference signal, where the phase ⁇ i,l of the cyclic shift of the sequence of the reference signal is related to a random phase factor, where i represents the reference signal Is sent through the i-th port, and l represents the number of symbols or symbol index or symbol number of the sequence mapping;
  • Step 450 Measure the reference signal to obtain a measurement result.
  • the random phase factor is related to any one of the following three parameters:
  • the symbol index corresponding to the symbol mapped by the sequence or the symbol index corresponding to the symbol mapped by the sequence and the time slot index of the mapped time slot; or the sequence generated by computer search.
  • the random phase factor is:
  • phase ⁇ i,l of the cyclic shift satisfies the following formula:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • N CS can be an integer greater than or equal to 2, or it can be the same.
  • n rand is used to determine the random phase rotation on different symbols.
  • n rand is related to the time slot index and the symbol index, and the expression is:
  • l represents the number of symbols or symbol index or symbol number in the time slot
  • c(i) is a pseudo-random sequence
  • the initial value It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • n rand is only related to the symbol index, and the expression is:
  • l represents the number of symbols or symbol index or symbol number in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • a random phase factor is added after the cyclic shift formula
  • the cyclic shifts of the SRS of different symbols on the same port are different, which reduces the interference between terminals and improves the accuracy of time delay estimation.
  • the random phase factor is
  • phase ⁇ i,l of the cyclic shift satisfies the following formula:
  • i the i-th port
  • l the number of symbols
  • Is the total number of ports; p i represents the current port number;
  • N CS can be an integer greater than or equal to 2, or it can be the same.
  • n rand is used to determine the random phase rotation on different symbols.
  • n rand is related to the time slot index and the symbol index, and the expression is:
  • l represents the number of symbols or symbol index or symbol number in the time slot
  • c(i) is a pseudo-random sequence
  • the initial value It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • n rand is only related to the symbol index, and the expression is:
  • l represents the number of symbols or symbol index or symbol number in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • a random phase rotation is added to each symbol, and the random phase factor is: (-j lgr u,v (n)) or
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • r u,v (n) is the sequence generated by computer search (sequence length ⁇ 36), when the sequence length M ZC ⁇ ⁇ 6,12,18,24 ⁇ , the sequence expression is:
  • u ⁇ 0,1,...,29 ⁇ Indicates that u corresponds to a sequence length Values, as shown in Table 1 to Table 4.
  • the value of can also refer to 3GPP TS38.211.
  • the sequence length is greater than or equal to the number of symbols of the reference signal (within a time slot). For example, when the number of SRS symbols is 12, sequences with lengths of 12, 18, 24, and 30 can be selected.
  • u can be a preset value or configured by a network device, for example, in the following way:
  • the first type the value of u and The value is related. For example, when When the value is 1, the value of u is 1; when When the value is 2, the value of u is 2; When the value is 3, the value of u is 3.
  • the corresponding method is not limited to this.
  • the second type, the value of u is the same as The value is related to the current port number.
  • the value is 12
  • the value is 22,
  • p i i+1000, i ⁇ 0,1 ⁇ , the number of consecutive SRS symbols (within a slot) is 12, and
  • port 1 corresponds to When it is 2,
  • 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.
  • the generating unit 510 is configured to generate a reference signal sequence, where the phase ⁇ i,l of the cyclic shift of the sequence is related to a random phase factor, where i indicates that the reference signal is sent using the i-th port, and l indicates the The number of symbols for sequence mapping, where the random phase factor indicates that the sequence mapping has different cyclic shift values when different symbols are mapped;
  • a generating unit 520 configured to map the sequence to one or more symbols
  • the sending unit 530 is configured to send the one or more symbols.
  • 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 receiving unit 610 is configured to receive the one or more symbols
  • the processing unit 620 is configured to obtain the reference signal, and the phase ⁇ i,l of the cyclic shift of the sequence of the reference signal is related to a random phase factor, where i represents that the reference signal is sent using the i-th port, and l Indicates the number of symbols or symbol index or symbol number of the sequence mapping.
  • the processing unit 620 is also used to measure the reference signal to obtain a measurement result.
  • the random phase factor is specifically related to any one of the following parameters: the symbol index corresponding to the symbol mapped by the sequence; or, the symbol index corresponding to the symbol mapped by the sequence and the mapped slot corresponding Time slot index; or, a sequence generated by computer search.
  • the random phase factor is:
  • i represents the i-th port
  • l represents the symbol number or symbol index or symbol number
  • Is the total number of ports; p i represents the current port number;
  • N CS can be an integer greater than or equal to 2, or it can be the same.
  • n rand is used to determine the random phase rotation on different symbols.
  • n rand is related to the time slot index and the symbol index, and the expression is:
  • l represents the number of symbols or symbol index or symbol number in the time slot
  • c(i) is a pseudo-random sequence
  • the initial value It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • n rand is only related to the symbol index, and the expression is:
  • l represents the number of symbols or symbol index or symbol number in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • a random phase factor is added after the cyclic shift formula
  • the cyclic shifts of the SRS of different symbols on the same port are different, which reduces the interference between terminals and improves the accuracy of time delay estimation.
  • the random phase factor is:
  • phase ⁇ i of the cyclic shift of the sequence satisfies the following formula:
  • i the i-th port
  • l the number of symbols
  • Is the total number of ports; p i represents the current port number;
  • N CS can be an integer greater than or equal to 2, or it can be the same.
  • n rand is used to determine the random phase rotation on different symbols.
  • n rand is related to the time slot index and the symbol index, and the expression is:
  • l represents the number of symbols or symbol index or symbol number in the time slot
  • c(i) is a pseudo-random sequence
  • the initial value It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • n rand is only related to the symbol index, and the expression is:
  • l represents the number of symbols or symbol index or symbol number in the slot
  • c(i) is the initial value of the pseudo-random sequence It can be a sequence index or a resource index
  • the value of K can be an integer greater than or equal to 0.
  • i the i-th port
  • l the number of symbols
  • Is the total number of ports; p i represents the current port number;
  • r u,v (n) is the sequence generated by computer search (sequence length ⁇ 36), when the sequence length M ZC ⁇ ⁇ 6,12,18,24 ⁇ , the sequence expression is:
  • u ⁇ 0,1,...,29 ⁇ Indicates that u corresponds to a sequence length Values, as shown in Table 1 to Table 4.
  • the value of can also refer to 3GPP TS38.211.
  • 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 devices may not have input and output devices.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 7 only one memory and processor are shown in FIG. 7. In an actual terminal device product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the antenna and radio frequency circuit with the transceiving function can be regarded as the transceiving unit of the terminal device, and the processor with the processing function can be regarded as the processing unit of the terminal device.
  • 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 transceiver unit may sometimes be called a transceiver, a transceiver, or a transceiver circuit.
  • the receiving unit may sometimes be called a receiver, a receiver, or a receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • 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 chip When the communication device 700 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit may be a processor, microprocessor, or integrated circuit integrated on the chip.
  • 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.
  • the 820 part may include one or more single boards, and each single board may include one or more processors and one or more memories.
  • the processor is used to read and execute programs in the memory to implement baseband processing functions and control the base station. If there are multiple boards, each board can be interconnected to enhance processing capabilities. As an optional implementation, multiple single boards may share one or more processors, or multiple single boards may share one or more memories, or multiple single boards may share one or more processing at the same time. Device.
  • part 820 is used to execute the foregoing method embodiment.
  • the 810 part is used for the related transceiving operations in the above method embodiment.
  • part 810 is used to receive one or more symbols.
  • 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 chip When the communication device 800 is a chip, the chip includes a transceiver unit and a processing unit.
  • the transceiver unit may be an input/output circuit or a communication interface;
  • the processing unit is a processor, microprocessor, or integrated circuit integrated on the chip.
  • the embodiments of the present application also provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a computer, the computer realizes the foregoing method embodiments.
  • the embodiments of the present application also provide a computer program product containing instructions, which when executed by a computer causes the computer to implement the foregoing method embodiments.
  • 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.
  • the embodiments of the present application do not specifically limit the specific structure of the execution body of the method provided in the embodiments of the present application, as long as the program that records the code of the method provided in the embodiments of the present application can be provided according to the embodiments of the present application.
  • the execution subject of the method provided in the embodiments of the present application may be a terminal device or a network device, or a functional module in the terminal device or the network device that can call and execute the program.
  • various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques.
  • article of manufacture used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • 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 disk or optical disk and other media that can store program code .

Abstract

一种参考信号的处理方法、装置及系统。其中,所述方法包括生成参考信号的序列,其中所述参考信号的序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示所述参考信号是通过第i个端口发送的,l表示所述序列映射的符号数或符号索引或符号编号;将所述序列映射到一个或多个符号,并发送。上述技术方案在生成参考信号的序列时,增加了符号级的相位旋转,使得同一个端口上不同符号的参考信号的循环位移不同,可以降低终端之间的干扰,提升时延估计的精度。

Description

一种参考信号处理方法、装置及系统 技术领域
本申请涉及通信技术领域,具体涉及一种参考信号处理的方法、装置及系统。
背景技术
3GPP TR 38.855中明确定义了新空口(New Radio,NR)中支持的定位技术,例如,下行定位技术、上行定位技术、上下行定位技术。其中,上行定位和上下行定位技术需要基站对终端发送的探测参考信号(sounding reference signal,SRS)进行测量。
现有标准中支持SRS的一个时隙中连续符号个数为1,2,4,8,12,端口号为1,2,4,梳齿(comb)值为2,4,8,comb值为N表示SRS在每N个子载波的粒度上传输,可以使N个终端发送的SRS频分。例如,如图1所示,以comb值为2,连续符号数为2为例。当发送端口大于1时,这些端口采用相同的资源粒子(resource element,RE)和序列,此时就需要使用循环移位来对不同端口进行区分。
现有NR系统中SRS采用的序列中循环移位与最大循环位移数、天线端口总数、当前端口号、comb偏移值四项有关,其中,循环移位的相位α i表达式如下:
Figure PCTCN2019105791-appb-000001
其中,
Figure PCTCN2019105791-appb-000002
Figure PCTCN2019105791-appb-000003
表示第i个端口上的循环移位,
Figure PCTCN2019105791-appb-000004
为SRS的最大循环位移值,当comb值为2时,
Figure PCTCN2019105791-appb-000005
取值为8;当comb值为4时,
Figure PCTCN2019105791-appb-000006
取值为12。
Figure PCTCN2019105791-appb-000007
表示comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000008
为总端口数,p i表示当前端口号。
现有技术中对同一个端口上不同符号的SRS拥有相同的循环位移,导致终端发送SRS自相关与其他终端发送的SRS互相关峰值过于接近,存在终端间的干扰,影响时延估计精度。
发明内容
为解决现有技术中对于同一个端口上不同符号的SRS拥有相同的循环位移,导致终端间干扰严重,影响时延估计精度的问题,本申请实施例提供一种参考信号处理方法、 装置及系统,使得同一端口上不同符号的SRS的循环位移不同,降低终端之间的干扰,提升时延估计精度。
第一方面,本申请实施例提供一种参考信号处理的方法,包括:生成参考信号的序列,其中,所述序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示采用第i个端口发送所述参考信号,l表示所述序列映射的符号数或符号索引或符号编号,其中,所述随机相位因子表示所述序列映射在不同的符号时具有不同的循环位移值;将所述序列映射到一个或多个符号,并发送。本申请实施例提供的技术方案,通过引入随机相位因子,使得序列映射在每个符号上循环移位不同,这样终端在发送参考信号的自相关与其他终端发送参考信号互相关的峰值错开,可以有效地降低终端之间的干扰,提高定位参数估计的准确性,进而提高定位精度。
一种可能的实现方式中,所述随机相位因子具体与以下参数中的任一项相关:所述序列所映射的符号对应的符号索引;或者,所述序列所映射的符号对应的符号索引以及所映射的时隙对应的时隙索引;或者,计算机搜索生成的序列。
另一种可能的实现方式中,所述随机相位因子为:
Figure PCTCN2019105791-appb-000009
所述循环移位的相位α i,i满足以下公式:
Figure PCTCN2019105791-appb-000010
或者,
Figure PCTCN2019105791-appb-000011
其中,
Figure PCTCN2019105791-appb-000012
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000013
表示最大循环位移值;
Figure PCTCN2019105791-appb-000014
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000015
Figure PCTCN2019105791-appb-000016
为总端口数;p i表示当前端口号;
Figure PCTCN2019105791-appb-000017
表示随机相位旋转的粒度;
N CS取值是大于等于2的整数,或,与
Figure PCTCN2019105791-appb-000018
相同;
n rand用于确定不同符号上的随机相位旋转;
其中,n rand满足以下公式:
Figure PCTCN2019105791-appb-000019
其中,
Figure PCTCN2019105791-appb-000020
表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号数或符号索引或符号编号,c(i)是伪随机序列,初始值c init
Figure PCTCN2019105791-appb-000021
表示序列索引或资源索引,K取值为大于等于0的整数;
或者,n rand满足以下公式:
Figure PCTCN2019105791-appb-000022
其中,l表示slot内的符号索引,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000023
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在另一种可能的实现方式中,所述随机相位因子为:
Figure PCTCN2019105791-appb-000024
所述循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000025
或者,
Figure PCTCN2019105791-appb-000026
其中,
Figure PCTCN2019105791-appb-000027
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000028
表示最大循环位移值;
Figure PCTCN2019105791-appb-000029
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000030
Figure PCTCN2019105791-appb-000031
为总端口数;p i表示当前端口号;
Figure PCTCN2019105791-appb-000032
表示随机相位旋转的粒度;
N CS取值是大于等于2的整数,或,与
Figure PCTCN2019105791-appb-000033
相同;
n rand用于确定不同符号上的随机相位旋转;
其中,n rand满足以下公式:
Figure PCTCN2019105791-appb-000034
其中,
Figure PCTCN2019105791-appb-000035
表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号数或符号索引或符号编号,c(i)是伪随机序列,初始值c init
Figure PCTCN2019105791-appb-000036
表示序列索引或资源索引,K取值为大于等于0的整数;
或者,n rand满足以下公式:
Figure PCTCN2019105791-appb-000037
其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000038
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在另一种可能的实现方式中,所述随机相位因子为:
Figure PCTCN2019105791-appb-000039
所述循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000040
或者,
Figure PCTCN2019105791-appb-000041
其中,
Figure PCTCN2019105791-appb-000042
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000043
表示最大循环位移值;
Figure PCTCN2019105791-appb-000044
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000045
Figure PCTCN2019105791-appb-000046
为总端口数;p i表示当前端口号;
Figure PCTCN2019105791-appb-000047
表示随机相位旋转的粒度;
N CS取值是大于等于2的整数,或,与
Figure PCTCN2019105791-appb-000048
相同;
n rand用于确定不同符号上的随机相位旋转;
其中,n rand满足以下公式:
Figure PCTCN2019105791-appb-000049
其中,
Figure PCTCN2019105791-appb-000050
表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号索引,c(i)是伪随机序列,初始值c init
Figure PCTCN2019105791-appb-000051
表示序列索引或资源索引,K取值为大于等于0的整数;
或者,n rand满足以下公式:
Figure PCTCN2019105791-appb-000052
其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000053
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在另一种可能的实现方式中,所述随机相位因子为
Figure PCTCN2019105791-appb-000054
所述循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000055
或者,
Figure PCTCN2019105791-appb-000056
其中,
Figure PCTCN2019105791-appb-000057
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000058
表示最大循环位移值;
Figure PCTCN2019105791-appb-000059
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000060
Figure PCTCN2019105791-appb-000061
为总端口数;p i表示当前端口号;
Figure PCTCN2019105791-appb-000062
表示随机相位旋转的粒度;
N CS取值是大于等于2的整数,或,与
Figure PCTCN2019105791-appb-000063
相同;
n rand用于确定不同符号上的随机相位旋转;
其中,n rand满足以下公式:
Figure PCTCN2019105791-appb-000064
其中,
Figure PCTCN2019105791-appb-000065
表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号数或符号索引或符号编号,c(i)是伪随机序列,初始值c init
Figure PCTCN2019105791-appb-000066
表示序列索引或资源索引,K取值为大于等于0的整数;
或者,n rand满足以下公式:
Figure PCTCN2019105791-appb-000067
其中,l表示slot内的符号索引,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000068
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在另一种可能的实现方式中,所述序列为伪随机序列。
在另一种可能的实现方式中,所述随机相位因子为:(-j lgr u,v(n))或者
Figure PCTCN2019105791-appb-000069
所述循环移位相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000070
或者,
Figure PCTCN2019105791-appb-000071
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000072
表示最大循环位移值;
Figure PCTCN2019105791-appb-000073
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000074
Figure PCTCN2019105791-appb-000075
为总端口数;p i表示当前端口号;
u为预设值,或者,u的取值与时隙索引、符号索引相关;r u,v(l)为计算机搜索生成的序列;
当序列长度为M ZC∈{6,12,18,24}时,序列表达式为:
Figure PCTCN2019105791-appb-000076
当序列长度为M ZC=30时,序列表达式为:
Figure PCTCN2019105791-appb-000077
第二方面,本申请实施例还提供一种参考信号处理方法,所述方法包括:从终端接收一个或多个符号;得到参考信号,其中所述参考信号的序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示所述参考信号是通过第i个端口发送的,l表示所述序列映射的符号数或符号索引或符号编号,其中,所述随机相位因子表示所述序列映射在不同的符号时具有不同的循环位移值;测量所述参考信号。
在一种可能的实现方式中,所述随机相位因子具体与以下参数中的任一项相关:所述序列所映射的符号对应的符号索引;或者,所述序列所映射的符号对应的符号索引以及所映射的时隙对应的时隙索引;或者,计算机搜索生成的序列。
在另一种可能的实现方式中,所述随机因子为:
Figure PCTCN2019105791-appb-000078
所述循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000079
或者,
Figure PCTCN2019105791-appb-000080
其中,
Figure PCTCN2019105791-appb-000081
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000082
表示最大循环位移值;
Figure PCTCN2019105791-appb-000083
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000084
Figure PCTCN2019105791-appb-000085
为总端口数;p i表示当前端口号;
n rand用于表示不同符号上的随机相位旋转,其中,n rand满足以下公式:
Figure PCTCN2019105791-appb-000086
其中,
Figure PCTCN2019105791-appb-000087
表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号索引,c(i)是伪随机序列,初始值c init
Figure PCTCN2019105791-appb-000088
表示序列索引或资源索引,K取值为大于等于0的整数;
或者,n rand满足以下公式:
Figure PCTCN2019105791-appb-000089
其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000090
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在另一种可能的实现方式中,所述随机相位因子为:
Figure PCTCN2019105791-appb-000091
所述循环移位的相位α i,i满足以下公式:
Figure PCTCN2019105791-appb-000092
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000093
表示最大循环位移值;
Figure PCTCN2019105791-appb-000094
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000095
Figure PCTCN2019105791-appb-000096
表示随机相位旋转的粒度;
Figure PCTCN2019105791-appb-000097
为总端口数;p i表示当前端口号;
n rand表示不同符号上的随机相位旋转,其中,n rand满足以下公式:
Figure PCTCN2019105791-appb-000098
其中,表示slot内的符号索引,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000099
可以是序列索引或资源索引,K取值可以是≥0的整数;
或者,n rand满足以下公式:
Figure PCTCN2019105791-appb-000100
其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000101
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在另一种可能的实现方式中,所述序列为伪随机序列。
在另一种可能的实现方式中,所述随机相位因子为-j lgr u,v(l),或者,
Figure PCTCN2019105791-appb-000102
所述循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000103
或者,
Figure PCTCN2019105791-appb-000104
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000105
表示最大循环位移值;
Figure PCTCN2019105791-appb-000106
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000107
Figure PCTCN2019105791-appb-000108
为总端口数;
p i表示当前端口号;
u为预设值,或者,u的取值与时隙索引、符号索引相关;r u,v(l)为计算机搜索生成的序列;当序列长度为M ZC∈{6,12,18,24}时,序列表达式为:
Figure PCTCN2019105791-appb-000109
当序列长度为M ZC=30时,序列表达式为:
Figure PCTCN2019105791-appb-000110
第三方面,本申请实施例还提供一种用于参考信号处理的装置,包括:处理单元,用于生成参考信号的序列,其中,所述序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示采用第i个端口发送所述参考信号,l表示所述序列映射的符号数或符号索引或符号编号,其中,所述随机相位因子表示所述序列映射在不同的符号时具有不同的循环位移值;处理单元,还用于将所述序列映射到一个或多个符号;发送单元,用于发送所述一个或多个符号。
在一种可能的实现方式中,所述随机相位因子具体与以下参数中的任一项相关:
所述序列所映射的符号对应的符号索引;或者,所述序列所映射的符号对应的符号索引以及所映射的时隙对应的时隙索引;或者,计算机搜索生成的序列。
在另一种可能的实现方式中,所述随机相位因子为:
Figure PCTCN2019105791-appb-000111
所述循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000112
或者,
Figure PCTCN2019105791-appb-000113
其中,
Figure PCTCN2019105791-appb-000114
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000115
表示最大循环位移值;
Figure PCTCN2019105791-appb-000116
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000117
Figure PCTCN2019105791-appb-000118
为总端口数;p i表示当前端口号;
Figure PCTCN2019105791-appb-000119
表示随机相位旋转的粒度;
N CS取值是大于等于2的整数,或,与
Figure PCTCN2019105791-appb-000120
相同;
n rand用于确定不同符号上的随机相位旋转;
其中,n rand满足以下公式:
Figure PCTCN2019105791-appb-000121
其中,
Figure PCTCN2019105791-appb-000122
表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号索引,c(i)是伪随机序列,初始值c init
Figure PCTCN2019105791-appb-000123
表示序列索引或资源索引,K取值为大于等于0的整数;或者,n rand满足以下公式:
Figure PCTCN2019105791-appb-000124
其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000125
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在另一种可能的实现方式中,所述随机相位因子为:
Figure PCTCN2019105791-appb-000126
所述循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000127
Figure PCTCN2019105791-appb-000128
其中,
Figure PCTCN2019105791-appb-000129
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000130
表示最大循环位移值;
Figure PCTCN2019105791-appb-000131
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000132
Figure PCTCN2019105791-appb-000133
为总端口数;p i表示当前端口号;
Figure PCTCN2019105791-appb-000134
表示随机相位旋转的粒度;
N CS取值是大于等于2的整数,或,与
Figure PCTCN2019105791-appb-000135
相同;
n rand用于确定不同符号上的随机相位旋转;
其中,n rand满足以下公式:
Figure PCTCN2019105791-appb-000136
其中,
Figure PCTCN2019105791-appb-000137
表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号数或符号索引或符号编号,c(i)是伪随机序列,初始值c init
Figure PCTCN2019105791-appb-000138
表示序列索引或资源索引,K取值为大于等于0的整数;或者,n rand满足以下公式:
Figure PCTCN2019105791-appb-000139
其中,l表示slot内的符号索引,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000140
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在另一种可能的实现方式中,所述序列为伪随机序列。
在另一种可能的实现方式中,所述随机相位因子为:(-j lgr u,v(n)),或者,
Figure PCTCN2019105791-appb-000141
Figure PCTCN2019105791-appb-000142
所述循环移位相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000143
或者,
Figure PCTCN2019105791-appb-000144
其中,i表示第i个端口,l表示符号数或符号索引或符号编号
Figure PCTCN2019105791-appb-000145
表示最大循环位移值;
Figure PCTCN2019105791-appb-000146
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000147
Figure PCTCN2019105791-appb-000148
为总端口数;p i表示当前端口号;
u为预设值,或者,u的取值与时隙索引、符号索引相关;r u,v(l)为计算机搜索生成的序列;当序列长度为M ZC∈{6,12,18,24}时,序列表达式为:
Figure PCTCN2019105791-appb-000149
当序列长度为M ZC=30时,序列表达式为:
Figure PCTCN2019105791-appb-000150
第四方面,一种参考信号处理的装置,包括:接收单元,用于从终端接收一个或多个符号,处理单元,用于得到参考信号,其中所述参考信号的序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示所述参考信号是通过第i个端口发送的,l表示所述序列映射的符号数或符号索引或符号编号,其中,所述随机相位因子表示所述序列映射在不同的符号时具有不同的循环位移值;处理单元,还用于测量所述参考信号。
一种可能的实现方式中,所述随机相位因子具体与以下参数中的任一项相关:所述序列所映射的符号对应的符号索引;或者,所述序列所映射的符号对应的符号索引以及所映射的时隙对应的时隙索引;或者,计算机搜索生成的序列。
一种可能的实现方式中,所述随机因子为:
Figure PCTCN2019105791-appb-000151
所述循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000152
或者,
Figure PCTCN2019105791-appb-000153
其中,
Figure PCTCN2019105791-appb-000154
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000155
表示最大循环位移值;
Figure PCTCN2019105791-appb-000156
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000157
Figure PCTCN2019105791-appb-000158
为总端口数;p i表示当前端口号;
n rand用于表示不同符号上的随机相位旋转,其中,n rand满足以下公式:
Figure PCTCN2019105791-appb-000159
其中,
Figure PCTCN2019105791-appb-000160
表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号数或符号索引或符号编号,c(i)是伪随机序列,初始值c init
Figure PCTCN2019105791-appb-000161
表示序列索引或资源索引,K取值为大于等于0的整数;或者,n rand满足以下公式:
Figure PCTCN2019105791-appb-000162
其中,l表示slot内的符号索引,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000163
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在另一种可能的实现方式中,所述随机相位因子为:
Figure PCTCN2019105791-appb-000164
所述循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000165
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000166
表示最大循环位移值;
Figure PCTCN2019105791-appb-000167
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000168
Figure PCTCN2019105791-appb-000169
表示随机相位旋转的粒度;
Figure PCTCN2019105791-appb-000170
为总端口数;p i表示当前端口号;
n rand表示不同符号上的随机相位旋转,其中,n rand满足以下公式:
Figure PCTCN2019105791-appb-000171
其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000172
可以是序列索引或资源索引,K取值可以是≥0的整数;
或者,n rand满足以下公式:
Figure PCTCN2019105791-appb-000173
其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000174
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
另一种可能的实现方式中,所述序列为伪随机序列。
另一种可能的实现方式中,所述随机相位因子为-j lgr u,v(l),或者,
Figure PCTCN2019105791-appb-000175
所述循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000176
或者,
Figure PCTCN2019105791-appb-000177
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000178
表示最大循环位移值;
Figure PCTCN2019105791-appb-000179
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000180
Figure PCTCN2019105791-appb-000181
为总端口数;
p i表示当前端口号;
u为预设值,或者,u的取值与时隙索引、符号索引相关;r u,v(l)为通过计算机搜索的方式生成的序列;当序列长度为M ZC∈{6,12,18,24}时,序列表达式为:
Figure PCTCN2019105791-appb-000182
当序列长度为M ZC=30时,序列表达式为:
Figure PCTCN2019105791-appb-000183
第五方面,本申请实施例还提供一种计算机可读存储介质,所述存储介质存储有指令,当所述指令在计算机上执行时,使得所述计算机执行如第一方面或第一方面的任一种可能的实现方式所述的方法,或,使得所述计算机执行如第二方面或第二方面的任一种可能的实现方式所述的方法。
第六方面,本申请实施例还提供一种装置,包括处理器和存储器,所述存储器存储有指令,当运行所述指令时,使得所述处理器用于执行如第一方面或第一方面的任一种可能的实现方式所述的方法,或,使得所述计算机执行如第二方面或第二方面的任一种可能的实现方式所述的方法。
第七方面,本申请实施例还提供一种通信系统,包括网络设备和终端设备,其中终端设备包括如第三方面或第三方面任一种可能的实现方式所述的装置,以及,所述网络设备包括如第四方面或第四方面任一种可能的实现方式所述的装置。
本申请实施例所提供的技术方案,通过引入随机相位因子,使得序列映射在每个符号上循环移位不同,这样终端在发送参考信号的自相关与其他终端发送参考信号互相关的峰值错开,可以有效地降低终端之间的干扰,提高定位参数估计的准确性,进而提高定位精度。
附图说明
图1是一个时隙内comb值为2时SRS频分复用的示意图;
图2是本申请实施例提供的一种网络结构示意图;
图3是本申请实施例提供的另一种网络结构示意图;
图4是本申请实施例提供的一种参考信号处理的方法示意图;
图5是本申请实施例提供的一种装置示意图;
图6是本申请实施例提供的另一种装置示意图;
图7是本申请实施例提供的一种终端设备的示意图;
图8是本申请实施例提供的一种网络设备的示意图。
具体实施方式
下面结合附图,对本申请的实施例进行描述,显然,所描述的实施例仅仅是本申请一部分的实施例,而不是全部的实施例。本领域普通技术人员可知,随着技术的发展以及新场景的出现,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。
本申请中出现的术语“和/或”,可以是一种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本申请中字符“/”,一般表示前后关联对象是一种“或”的关系。
本申请的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象,而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换,以便这里描述的实施例能够以除了在这里图示或描述的内容以外的顺序实施。此外,术语“包括”和“具有”以及他们的任何变形,意图在于覆盖不排他的包含,例如,包含了一系列步骤或模块的过程、方法、系统、产品或设备不必限于清楚地列出的那些步骤或模块,而是可包括没有清楚地列出的或对于这些过程、方法、产品或设备固有的其它步骤或模块。在本申请中出现的对步骤进行的命名或者编号,并不意味着必须按照命名或者编号所指示的时间/逻辑先后顺序执行方法流程中的步骤,已经命名或者编号的流程步骤可以根据要实现的技术目的变更执行次序,只要能达到相同或者相类似 的技术效果即可。本申请中所出现的模块的划分,是一种逻辑上的划分,实际应用中实现时可以有另外的划分方式,例如多个模块可以结合成或集成在另一个系统中,或一些特征可以忽略,或不执行,另外,所显示的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,模块之间的间接耦合或通信连接可以是电性或其他类似的形式,本申请中均不作限定。并且,作为分离部件说明的模块或子模块可以是也可以不是物理上的分离,可以是也可以不是物理模块,或者可以分布到多个电路模块中,可以根据实际的需要选择其中的部分或全部模块来实现本申请方案的目的。
本申请实施例的技术方案可以应用于各种通信系统,例如:长期演进(long term evolution,LTE)系统、LTE频分双工(frequency division duplex,FDD)系统、LTE时分双工(time division duplex,TDD)、通用移动通信系统(universal mobile telecommunication system,UMTS)、全球互联微波接入(worldwide interoperability for microwave access,WiMAX)通信系统、第五代(5th generation,5G)系统或新无线(new radio,NR)、或者下一代通信系统等。
为便于理解本申请实施例,首先结合图2和图3详细说明适用于本申请实施例的网络架构。
图2示出了适用于本申请实施例的架构200的示意图。如图2所示,该网络架构具体可以包括下列网元:
1、终端设备:可以为用户设备(user equipment,UE)、接入终端、用户单元、用户站、移动站、移动台、远程终端、移动设备、用户终端、用户代理或用户装置。本申请实施例中涉及的终端设备可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其它处理设备。
其中,图2和图3均以终端设备为UE作为示例。
2、网络设备:可以是用于与终端设备通信的设备,该网络设备可以是LTE系统中的演进型基站(evolved NodeB,eNB或eNodeB),还可以是全球移动通信(global system for mobile communications,GSM)系统或码分多址(code division multiple access,CDMA)中的基站(base transceiver station,BTS),也可以是宽带码分多址(wideband code division multiple access,WCDMA)系统中的基站(NodeB,NB),还可以是云无线接入网络(cloud radio access network,CRAN)场景下的无线控制器,或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等,本申请实施例并不限定。
3、移动性管理实体(mobility management entity,MME):可用于管理终端设备的位置信息、安全性以及业务连续性。
4、位置测量单元(location measurement unit,LMU)网元:可以集成于网络设备中,如基站中,也可以与基站分离。负责接收终端设备发送的上行信号。在本申请实施例中,假设LMU具有发送下行信号的能力。
5、演进的服务移动位置中心(evolved serving mobile location cente,E-SMLC)网元:可以用于定位,例如称为定位服务中心或定位中心或定位管理设备,在本申请实施例中,MME和LMU均称为定位管理设备。用于收集基站和终端设备上报的测量信息和位置信息,其还负责将基站或终端设备的测量量进行位置解算,确定终端设备位置。
该架构中,终端设备可以通过LTE-Uu接口经由eNodeB连接到无线接入网。E-SMLC与LMU之间通过SLm接口连接,E-SMLC与MME之间通过SLs接口连接。
图3示出了适用于本申请实施例的架构300的另一示意图。如图所示,该架构300具体可以包括下列网元:
1、定位管理功能(location management function,LMF)网元:可以用于定位,例如称为定位服务中心或定位中心或定位管理设备,在本申请实施例中,均称为定位管理设备。用于收集基站和终端设备上报的测量信息和位置信息,其还负责将基站或终端设备的测量量进行位置解算,确定终端设备位置。LMF可以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。
2、接入和移动管理功能(access and mobility management function,AMF)实体:主要用于移动性管理和接入管理等,可以用于实现移动性管理实体(mobility management entity,MME)功能中除会话管理之外的其它功能,例如,合法监听、或接入授权(或鉴权)等功能。在本申请实施例中,可用于实现接入和移动管理网元的功能。
其余网元可参考上述架构200的描述,此处不再赘述。
该架构300中,UE通过LTE-Uu和/或NR-Uu接口分别经由下一代基站(next-generation eNodeB,ng-eNB)和gNB连接到无线接入网(NG-RAN);无线接入网通过NG-C接口经由AMF连接到核心网。其中,下一代无线接入网(next-generation radio access network,NG-RAN)包括一个或多个ng-eNB;NG-RAN也可以包括一个或多个gNB;NG-RAN还可以包括一个或多个ng-eNB以及gNB。ng-eNB为接入5G核心网的LTE基站,gNB为接入5G核心网的5G基站。核心网包括AMF与LMF等功 能。AMF与LMF之间通过NLs接口连接。
上述图2和图3中的ng-eNB也可以替换为传输节点(transmission point,TP)或传输接收点(transmission and reception point,TRP)。
在本申请实施例中,多次提及定位管理设备。定位管理设备表示可以管理服务小区与邻小区的网元。定位管理设备可以是核心网的一部分,也可以集成到接入网设备中。例如,定位管理设备可以为图3中所示的核心网中的LMF,也可以为图中所示的MME和LMU。定位管理设备也可称为定位中心。本申请并不限定定位管理设备的名称,在未来演进技术中,定位管理设备可能会被赋予其它名称。
应理解,上述应用于本申请实施例的网络架构仅是举例说明,适用本申请实施例的网络架构并不局限于此,任何能够实现上述各个网元的功能的网络架构都适用于本申请实施例。例如,本申请实施例可以应用于其他定位系统中。
还应理解,上述“网元”也可以称为实体、设备、装置或模块等,本申请并未特别限定。并且,在本申请中,为了便于理解和说明,在对部分描述中省略“网元”这一描述,例如,将LMF网元简称LMF,此情况下,该“LMF”应理解为LMF网元或LMF实体,以下,省略对相同或相似情况的说明。
还应理解,上述各个网元之间的接口名称只是一个示例,具体实现中接口的名称可能为其他的名称,本申请对此不作具体限定。此外,上述各个网元之间的所传输的消息(或信令)的名称也仅仅是一个示例,对消息本身的功能不构成任何限定。
还应理解,上述命名仅为便于区分不同的功能,而不应对本申请构成任何限定,本申请并不排除在5G网络以及未来其它的网络中采用其他命名的可能。例如,在6G网络中,上述各个网元中的部分或全部可以沿用5G中的术语,也可能采用其他名称等。在此进行统一说明,以下不再赘述。
如图4所示,本申请实施例提供一种参考信号处理的方法400,包括:
步骤410:终端设备生成参考信号的序列,所述序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示采用第i个端口发送所述参考信号,l表示所述序列映射的符号数或符号索引或符号编号,其中,所述随机相位因子表示所述序列映射在不同的符号时具有不同的循环位移值;
步骤420:将所述序列映射到一个或多个符号上;
步骤430:发送所述一个或多个符号。
步骤440:网络设备接收一个或多个符号,得到所述参考信号,其中,所述参考信 号的序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示所述参考信号是通过第i个端口发送的,l表示所述序列映射的符号数或符号索引或符号编号;
步骤450:测量所述参考信号,得到测量结果。
其中,随机相位因子与如下三个参数的中任一个参数相关:
所述序列所映射的符号对应的符号索引;或者,所述序列所映射的符号对应的符号索引以及所映射的时隙的时隙索引;或者,通过计算机搜索生成的序列。
示例性地,在第一种可能的实现方式中,所述随机相位因子为:
Figure PCTCN2019105791-appb-000184
循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000185
Figure PCTCN2019105791-appb-000186
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000187
表示最大循环位移值,与comb取值相关。当前标准中,当comb取值为2时,
Figure PCTCN2019105791-appb-000188
取值为8;当comb取值为4时,
Figure PCTCN2019105791-appb-000189
取值为12;当comb取值为8,
Figure PCTCN2019105791-appb-000190
取值还未确定。例如,当comb取值为8,
Figure PCTCN2019105791-appb-000191
取值可以为6或12,也可以为其他值。
Figure PCTCN2019105791-appb-000192
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000193
Figure PCTCN2019105791-appb-000194
为总端口数;p i表示当前端口号;
Figure PCTCN2019105791-appb-000195
表示随机相位旋转的粒度,
N CS取值可以是大于等于2的整数,也可以与
Figure PCTCN2019105791-appb-000196
相同.
n rand用于确定不同符号上的随机相位旋转。
一种可能的实现方式中,n rand取值方式与时隙索引和符号索引有关,表达式为:
Figure PCTCN2019105791-appb-000197
其中,
Figure PCTCN2019105791-appb-000198
表示一帧内的时隙索引,l表示时隙内的符号数或符号索引或符号编号,c(i)是伪随机序列,初始值
Figure PCTCN2019105791-appb-000199
可以是序列索引或资源索引,K取值可以大于等于0的整数。
例如,当K=7时是复用PUCCH的方案:
Figure PCTCN2019105791-appb-000200
另一种可能的实现方式中,n rand的取值方式仅与符号索引相关,表达式为:
Figure PCTCN2019105791-appb-000201
其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000202
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在第一种实现方式中,在循环移位的公式后增加了随机相位因子
Figure PCTCN2019105791-appb-000203
使得序列在映射到符号时,同一端口上不同符号的SRS的循环位移不同,降低终端之间的干扰,提升时延估计精度。
示例性的,在第二种实现方式中,所述随机相位因子为
Figure PCTCN2019105791-appb-000204
循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000205
其中,i表示第i个端口,l表示符号数;
Figure PCTCN2019105791-appb-000206
表示最大循环位移值,与comb取值相关。当前标准中,当comb取值为2时,
Figure PCTCN2019105791-appb-000207
取值为8;当comb取值为4时,
Figure PCTCN2019105791-appb-000208
取值为12;当comb取值为8,
Figure PCTCN2019105791-appb-000209
取值还未确定。
Figure PCTCN2019105791-appb-000210
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000211
Figure PCTCN2019105791-appb-000212
为总端口数;p i表示当前端口号;
Figure PCTCN2019105791-appb-000213
表示随机相位旋转的粒度,
N CS取值可以是大于等于2的整数,也可以与
Figure PCTCN2019105791-appb-000214
相同.
n rand用于确定不同符号上的随机相位旋转。
一种可能的实现方式中,n rand取值方式与时隙索引和符号索引有关,表达式为:
Figure PCTCN2019105791-appb-000215
其中,
Figure PCTCN2019105791-appb-000216
表示一帧内的时隙索引,l表示时隙内的符号数或符号索引或符号编号,c(i)是伪随机序列,初始值
Figure PCTCN2019105791-appb-000217
可以是序列索引或资源索引,K取值可以大于等于0的整数。
另一种可能的实现方式中,n rand的取值方式仅与符号索引相关,表达式为:
Figure PCTCN2019105791-appb-000218
其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000219
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在上述第二种实现方式中,通过在α i,l上增加随机相位因子
Figure PCTCN2019105791-appb-000220
使得每个符号上循环移位不同,可以有效地降低终端之间的干扰,提高定位参数估计的准确性,进而提高定位精度。
本领域技术人员应理解,上述实现方式1和实现方式2中的序列为伪随机序列。
示例性地,在第三种实现方式中,在每个符号上增加随机相位旋转,随机相位因子为:(-j lgr u,v(n))或者
Figure PCTCN2019105791-appb-000221
循环移位的相位α i,l表达式为:
Figure PCTCN2019105791-appb-000222
其中,
Figure PCTCN2019105791-appb-000223
或者,将
Figure PCTCN2019105791-appb-000224
代入到α i,l,得到如下表达式:
Figure PCTCN2019105791-appb-000225
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000226
表示最大循环位移值,与comb取值相关。当前标准中,当comb取值为2时,
Figure PCTCN2019105791-appb-000227
取值为8;当comb取值为4时,
Figure PCTCN2019105791-appb-000228
取值为12;当comb取值为8,
Figure PCTCN2019105791-appb-000229
取值还未确定。
Figure PCTCN2019105791-appb-000230
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000231
Figure PCTCN2019105791-appb-000232
为总端口数;p i表示当前端口号;
r u,v(n)为通过计算机搜索生成的序列(序列长度<36),当序列长度M ZC∈{6,12,18,24}时,序列表达式为:
Figure PCTCN2019105791-appb-000233
此时,若将
Figure PCTCN2019105791-appb-000234
代入到-j lgr u,v(n),得到如下表达式:
Figure PCTCN2019105791-appb-000235
其中,u∈{0,1,…,29},
Figure PCTCN2019105791-appb-000236
表示一个序列长度下u对应的
Figure PCTCN2019105791-appb-000237
值,如表1至表4所示。另外,
Figure PCTCN2019105791-appb-000238
的值也可以参考3GPP TS38.211。
Figure PCTCN2019105791-appb-000239
表1序列长度为6时的
Figure PCTCN2019105791-appb-000240
Figure PCTCN2019105791-appb-000241
表2序列长度为12时的
Figure PCTCN2019105791-appb-000242
Figure PCTCN2019105791-appb-000243
表3序列长度为18时的
Figure PCTCN2019105791-appb-000244
Figure PCTCN2019105791-appb-000245
表4序列长度为24时的
Figure PCTCN2019105791-appb-000246
当序列长度为M ZC=30时,序列表达式为:
Figure PCTCN2019105791-appb-000247
此时,若将
Figure PCTCN2019105791-appb-000248
代入到-j lgr u,v(n),得到如下表达式:
Figure PCTCN2019105791-appb-000249
对应的
Figure PCTCN2019105791-appb-000250
为如下表达式:
Figure PCTCN2019105791-appb-000251
上述序列长度共有5种,选择序列需满足:序列长度大于等于参考信号的符号数量(一个时隙内)。如,SRS符号数量为12时,长度为12,18,24,30的序列都可选择。
u可以为预设值或者由网络设备配置,例如通过以下方式:
第一种,u取值与
Figure PCTCN2019105791-appb-000252
取值相关。例如,当
Figure PCTCN2019105791-appb-000253
取值为1时,u取值为1;当
Figure PCTCN2019105791-appb-000254
取值为2时,u取值为2;
Figure PCTCN2019105791-appb-000255
取值为3时,u取值为3。对应方式不限于此。
第二种,u取值与
Figure PCTCN2019105791-appb-000256
取值和当前端口号相关。如总端口数
Figure PCTCN2019105791-appb-000257
为2,
Figure PCTCN2019105791-appb-000258
取值为12,
Figure PCTCN2019105791-appb-000259
取值为22,p i=i+1000,i∈{0,1},SRS连续符号数量(一个时隙内)为12,端口1对应的
Figure PCTCN2019105791-appb-000260
为2时每个符号上对应的相位旋转对应于序列长度M ZC=12且u=2的序列值,端口2对应的
Figure PCTCN2019105791-appb-000261
为8时每个符号上对应的相位旋转对应于序列长度M ZC=18且u=2的序列值,对应方式不限于此。
在上述第三种实现方式中,通过在α i,l上增加随机相位因子(-j lgr u,v(n))或
Figure PCTCN2019105791-appb-000262
使得每个符号上循环移位不同,可以有效地降低终端之间的干扰,提高定位参数估计的准确性,进而提高定位精度。
本文中描述的各个实施例可以为独立的方案,也可以根据内在逻辑进行组合,这些方案都落入本申请的保护范围中。
可以理解的是,上述各个方法实施例中,处理参考信号的执行主体既可以是终端设备或者可用于终端设备的部件(例如芯片或者电路)。
上文描述了本申请实施例提供的方法实施例,下文将描述本申请实施例提供的装置实施例。应理解,装置实施例的描述与方法实施例的描述相互对应,因此,未详细描述的内容可以参见上文方法实施例,为了简洁,这里不再赘述。
图5示出根据本申请实施例的参考信号处理的装置500的示意性框图。装置500包括如下单元。
生成单元510,用于生成参考信号序列,其中所述序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示采用第i个端口发送所述参考信号,l表示所述序列映射的符号数,其中,所述随机相位因子表示所述序列映射在不同的符号时具有不同的循环位移值;
生成单元520,用于将所述序列映射到一个或多个符号上;
发送单元530,用于发送所述一个或多个符号。
对应地,本申请实施例还提供一种参考信号处理的装置600的示意图,装置600包括如下单元。
接收单元610,用于接收所述一个或多个符号;
处理单元620,用于得到所述参考信号,所述参考信号的序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示采用第i个端口发送所述参考信号,l表示所述序列映射的符号数或符号索引或符号编号。
所述处理单元620,还用于测量所述参考信号,得到测量结果。
其中,所述随机相位因子具体与以下参数中的任一项相关:所述序列所映射的符号对应的符号索引;或者,所述序列所映射的符号对应的符号索引以及所映射的时隙对应的时隙索引;或者,通过计算机搜索生成的序列。
可选地,在第一种实现方式中,所述随机相位因子为:
Figure PCTCN2019105791-appb-000263
序列的循环移位的相位α i,l满足以下公式:
Figure PCTCN2019105791-appb-000264
Figure PCTCN2019105791-appb-000265
其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
Figure PCTCN2019105791-appb-000266
表示最大循环位移值,与comb取值相关。当前标准中,当comb取值为2时,
Figure PCTCN2019105791-appb-000267
取值为8;当comb取值为4时,
Figure PCTCN2019105791-appb-000268
取值为12;当comb取值为8,
Figure PCTCN2019105791-appb-000269
取值还未确定。例如,当comb取值为8,
Figure PCTCN2019105791-appb-000270
取值为6或12,也可以是其他值。
Figure PCTCN2019105791-appb-000271
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000272
Figure PCTCN2019105791-appb-000273
为总端口数;p i表示当前端口号;
Figure PCTCN2019105791-appb-000274
表示随机相位旋转的粒度,
N CS取值可以是大于等于2的整数,也可以与
Figure PCTCN2019105791-appb-000275
相同.
n rand用于确定不同符号上的随机相位旋转。
一种可能的实现方式中,n rand取值方式与时隙索引和符号索引有关,表达式为:
Figure PCTCN2019105791-appb-000276
其中,
Figure PCTCN2019105791-appb-000277
表示一帧内的时隙索引,l表示时隙内的符号数或符号索引或符号编号,c(i)是伪随机序列,初始值
Figure PCTCN2019105791-appb-000278
可以是序列索引或资源索引,K取值可以大于等于0的整数。
例如,当K=7时是复用PUCCH的方案:
Figure PCTCN2019105791-appb-000279
另一种可能的实现方式中,n rand的取值方式仅与符号索引相关,表达式为:
Figure PCTCN2019105791-appb-000280
其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000281
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在第一种实现方式中,在循环移位的公式后增加了随机相位因子
Figure PCTCN2019105791-appb-000282
使得序列在映射到符号时,同一端口上不同符号的SRS的循环位移不同,降低终端之间的干扰,提升时延估计精度。
可选的,在第二种实现方式中,所述随机相位因子为:
Figure PCTCN2019105791-appb-000283
序列的循环移位的相位α i满足以下公式:
Figure PCTCN2019105791-appb-000284
其中,i表示第i个端口,l表示符号数;
Figure PCTCN2019105791-appb-000285
表示最大循环位移值,与comb取值相关。当前标准中,当comb取值为2时,
Figure PCTCN2019105791-appb-000286
取值为8;当comb取值为4时,
Figure PCTCN2019105791-appb-000287
取值为12;当comb取值为8,
Figure PCTCN2019105791-appb-000288
取值还未确定。例如,当comb取值为8,
Figure PCTCN2019105791-appb-000289
取值为6或12,也可以为其他值。
Figure PCTCN2019105791-appb-000290
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000291
Figure PCTCN2019105791-appb-000292
为总端口数;p i表示当前端口号;
Figure PCTCN2019105791-appb-000293
表示随机相位旋转的粒度,
N CS取值可以是大于等于2的整数,也可以与
Figure PCTCN2019105791-appb-000294
相同.
n rand用于确定不同符号上的随机相位旋转。
一种可能的实现方式中,n rand取值方式与时隙索引和符号索引有关,表达式为:
Figure PCTCN2019105791-appb-000295
其中,
Figure PCTCN2019105791-appb-000296
表示一帧内的时隙索引,l表示时隙内的符号数或符号索引或符号编号,c(i)是伪随机序列,初始值
Figure PCTCN2019105791-appb-000297
可以是序列索引或资源索引,K取值可以大于等于0的整数。
另一种可能的实现方式中,n rand的取值方式仅与符号索引相关,表达式为:
Figure PCTCN2019105791-appb-000298
其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
Figure PCTCN2019105791-appb-000299
可以是序列索引或资源索引,K取值可以是大于等于0的整数。
在上述第二种实现方式中,通过在α i,l上增加随机相位因子
Figure PCTCN2019105791-appb-000300
使得每个符号上循环移位不同,可以有效地降低终端之间的干扰,提高定位参数估计的准确性,进而提高定位精度。
本领域技术人员应理解,上述实现方式1和实现方式2中的序列为伪随机序列。
可选地,在第三种实现方式中,在每个符号上增加随机相位旋转,循环移位的表达式为:
Figure PCTCN2019105791-appb-000301
其中,
Figure PCTCN2019105791-appb-000302
或者,将
Figure PCTCN2019105791-appb-000303
代入到α i,l,得到如下表达式:
Figure PCTCN2019105791-appb-000304
其中,i表示第i个端口,l表示符号数;
Figure PCTCN2019105791-appb-000305
表示最大循环位移值,与comb取值相关。当前标准中,当comb取值 为2时,
Figure PCTCN2019105791-appb-000306
取值为8;当comb取值为4时,
Figure PCTCN2019105791-appb-000307
取值为12;当comb取值为8,
Figure PCTCN2019105791-appb-000308
取值还未确定。例如,当comb取值为8,
Figure PCTCN2019105791-appb-000309
取值为6或12,也可以是其他值。
Figure PCTCN2019105791-appb-000310
为comb偏移值,取值范围为
Figure PCTCN2019105791-appb-000311
Figure PCTCN2019105791-appb-000312
为总端口数;p i表示当前端口号;
r u,v(n)为通过计算机搜索生成的序列(序列长度<36),当序列长度M ZC∈{6,12,18,24}时,序列表达式为:
Figure PCTCN2019105791-appb-000313
此时,若将
Figure PCTCN2019105791-appb-000314
代入到-j lgr u,v(n),得到如下表达式:
Figure PCTCN2019105791-appb-000315
其中,u∈{0,1,…,29},
Figure PCTCN2019105791-appb-000316
表示一个序列长度下u对应的
Figure PCTCN2019105791-appb-000317
值,如表1至表4所示。另外,
Figure PCTCN2019105791-appb-000318
的值也可以参考3GPP TS38.211。
当序列长度为M ZC=30时,序列表达式为:
Figure PCTCN2019105791-appb-000319
此时,若将
Figure PCTCN2019105791-appb-000320
代入到-j lgr u,v(n),得到如下表达式:
Figure PCTCN2019105791-appb-000321
对应的
Figure PCTCN2019105791-appb-000322
为如下表达式:
Figure PCTCN2019105791-appb-000323
本申请实施例还提供一种通信装置700,该通信装置700可以是终端设备也可以是芯片。该通信设备700可以用于执行上述方法实施例。
当该通信设备700为终端设备时,图7示出了一种简化的终端设备的结构示意图。便于理解和图示方便,图7中,终端设备以手机作为例子。如图7所示,终端设备包括处理器、存储器、射频电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理,以及对终端设备进行控制,执行软件程序,处理软件程序的数据等。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及 对射频信号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置,例如触摸屏、显示屏,键盘等主要用于接收用户输入的数据以及对用户输出数据。需要说明的是,有些种类的终端设备可以不具有输入输出装置。
当需要发送数据时,处理器对待发送的数据进行基带处理后,输出基带信号至射频电路,射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到终端设备时,射频电路通过天线接收到射频信号,将射频信号转换为基带信号,并将基带信号输出至处理器,处理器将基带信号转换为数据并对该数据进行处理。为便于说明,图7中仅示出了一个存储器和处理器,在实际的终端设备产品中,可以存在一个或多个处理器和一个或多个存储器。存储器也可以称为存储介质或者存储设备等。存储器可以是独立于处理器设置,也可以是与处理器集成在一起,本申请实施例对此不做限制。
在本申请实施例中,可以将具有收发功能的天线和射频电路视为终端设备的收发单元,将具有处理功能的处理器视为终端设备的处理单元。
如图7所示,终端设备包括收发单元710和处理单元720。收发单元710也可以称为收发器、收发机、收发装置等。处理单元720也可以称为处理器,处理单板,处理模块、处理装置等。可选地,可以将收发单元710中用于实现接收功能的器件视为接收单元,将收发单元710中用于实现发送功能的器件视为发送单元,即收发单元710包括接收单元和发送单元。收发单元有时也可以称为收发机、收发器、或收发电路等。接收单元有时也可以称为接收机、接收器、或接收电路等。发送单元有时也可以称为发射机、发射器或者发射电路等。
例如,在一种实现方式中,处理单元720用于执行上述方法实施例。收发单元710用于上述方法实施例中相关的收发操作。例如,收发单元710用于发送一个或多个符号。
应理解,图7仅为示例而非限定,上述包括收发单元和处理单元的终端设备可以不依赖于图7所示的结构。
当该通信设备700为芯片时,该芯片包括收发单元和处理单元。其中,收发单元可以是输入输出电路或通信接口;处理单元可以为该芯片上集成的处理器或者微处理器或者集成电路。
本申请实施例还提供一种通信设备800,该通信设备800可以是网络设备也可以是芯片。该通信设备800可以用于执行上述方法实施例。
当该通信设备800为网络设备时,例如为基站。图8示出了一种简化的基站结构示意 图。基站包括810部分以及820部分。810部分主要用于射频信号的收发以及射频信号与基带信号的转换;820部分主要用于基带处理,对基站进行控制等。810部分通常可以称为收发单元、收发机、收发电路、或者收发器等。820部分通常是基站的控制中心,通常可以称为处理单元,用于控制基站执行上述方法实施例中网络设备侧的处理操作。
810部分的收发单元,也可以称为收发机或收发器等,其包括天线和射频单元,其中射频单元主要用于进行射频处理。可选地,可以将810部分中用于实现接收功能的器件视为接收单元,将用于实现发送功能的器件视为发送单元,即810部分包括接收单元和发送单元。接收单元也可以称为接收机、接收器、或接收电路等,发送单元可以称为发射机、发射器或者发射电路等。
820部分可以包括一个或多个单板,每个单板可以包括一个或多个处理器和一个或多个存储器。处理器用于读取和执行存储器中的程序以实现基带处理功能以及对基站的控制。若存在多个单板,各个单板之间可以互联以增强处理能力。作为一种可选的实施方式,也可以是多个单板共用一个或多个处理器,或者是多个单板共用一个或多个存储器,或者是多个单板同时共用一个或多个处理器。
例如,在一种实现方式中,820部分用于执行上述方法实施例。810部分用于上述方法实施例中相关的收发操作。例如,810部分用于接收一个或多个符号。
应理解,图8仅为示例而非限定,上述包括收发单元和处理单元的网络设备可以不依赖于图8所示的结构。
当该通信设备800为芯片时,该芯片包括收发单元和处理单元。其中,收发单元可以是输入输出电路、通信接口;处理单元为该芯片上集成的处理器或者微处理器或者集成电路。
本申请实施例还提供一种计算机可读存储介质,其上存储有计算机程序,该计算机程序被计算机执行时使得该计算机实现上述方法实施例。
本申请实施例还提供一种包含指令的计算机程序产品,该指令被计算机执行时使得该计算机实现上述方法实施例。
上述提供的任一种通信装置中相关内容的解释及有益效果均可参考上文提供的对应的方法实施例,此处不再赘述。
在本申请实施例中,终端设备或网络设备包括硬件层、运行在硬件层之上的操作系统层,以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit,CPU)、内存管理单元(memory management unit,MMU)和内存(也称为主存) 等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统,例如,Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且,本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定,只要能够通过运行记录有本申请实施例的提供的方法的代码的程序,以根据本申请实施例提供的方法进行通信即可,例如,本申请实施例提供的方法的执行主体可以是终端设备或网络设备,或者,是终端设备或网络设备中能够调用程序并执行程序的功能模块。
另外,本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如,计算机可读介质可以包括,但不限于:磁存储器件(例如,硬盘、软盘或磁带等),光盘(例如,压缩盘(compact disc,CD)、数字通用盘(digital versatile disc,DVD)等),智能卡和闪存器件(例如,可擦写可编程只读存储器(erasable programmable read-only memory,EPROM)、卡、棒或钥匙驱动器等)。另外,本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于,无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
应理解,本申请实施例中提及的处理器可以是中央处理单元(Central Processing Unit,CPU),还可以是其他通用处理器、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、分立门或者晶体管逻辑器件、分立硬件组件等。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。
还应理解,本申请实施例中提及的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态 随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。
需要说明的是,当处理器为通用处理器、DSP、ASIC、FPGA或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件时,存储器(存储模块)集成在处理器中。
应注意,本文描述的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到,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,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,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。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、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系统,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,机械或其它的形式。
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单元上。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。
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,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。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或者该技术方案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一个存储介质中,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方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(read-only memory,ROM)、随机存取存储器(random access memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
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,任何熟悉本技术领域的技术人员在本申请揭露的技术范围内,可轻易想到变化或替换,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。

Claims (25)

  1. 一种参考信号处理的方法,其特征在于,包括:
    生成参考信号的序列,其中,所述序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示采用第i个端口发送所述参考信号,l表示所述序列映射的符号数或符号索引或符号编号,其中,所述随机相位因子表示所述序列映射在不同的符号时具有不同的循环位移值;
    将所述序列映射到一个或多个符号,并发送。
  2. 根据权利要求1所述的方法,其特征在于,所述随机相位因子具体与以下参数中的任一项相关:
    所述序列所映射的符号对应的符号索引;或者,
    所述序列所映射的符号对应的符号索引以及所映射的时隙对应的时隙索引;或者,
    通过计算机搜索生成的序列。
  3. 根据权利要求1或2所述的方法,其特征在于,所述随机相位因子为:
    Figure PCTCN2019105791-appb-100001
    所述循环移位的相位α i,l满足以下公式:
    Figure PCTCN2019105791-appb-100002
    Figure PCTCN2019105791-appb-100003
    其中,
    Figure PCTCN2019105791-appb-100004
    其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
    Figure PCTCN2019105791-appb-100005
    表示最大循环位移值;
    Figure PCTCN2019105791-appb-100006
    为comb偏移值,取值范围为
    Figure PCTCN2019105791-appb-100007
    Figure PCTCN2019105791-appb-100008
    为总端口数;p i表示当前端口号;
    Figure PCTCN2019105791-appb-100009
    表示随机相位旋转的粒度;
    N CS取值是大于等于2的整数,或,与
    Figure PCTCN2019105791-appb-100010
    相同;
    n rand用于确定不同符号上的随机相位旋转;
    其中,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100011
    其中,
    Figure PCTCN2019105791-appb-100012
    表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号索引或符号索引或符号编号,c(i)是伪随机序列,初始值c init
    Figure PCTCN2019105791-appb-100013
    表示序列索引或资源索引,K取值为大于等于0的整数;
    或者,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100014
    其中,l表示slot内的符号索引,c(i)是伪随机序列初始值
    Figure PCTCN2019105791-appb-100015
    可以是序列索引或资源索引,K取值可以是大于等于0的整数。
  4. 根据权利要求1或2所述的方法,其特征在于,所述随机相位因子为
    Figure PCTCN2019105791-appb-100016
    所述循环移位的相位α i,l满足以下公式:
    Figure PCTCN2019105791-appb-100017
    或者,
    Figure PCTCN2019105791-appb-100018
    其中,
    Figure PCTCN2019105791-appb-100019
    其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
    Figure PCTCN2019105791-appb-100020
    表示最大循环位移值;
    Figure PCTCN2019105791-appb-100021
    为comb偏移值,取值范围为
    Figure PCTCN2019105791-appb-100022
    Figure PCTCN2019105791-appb-100023
    为总端口数;p i表示当前端口号;
    Figure PCTCN2019105791-appb-100024
    表示随机相位旋转的粒度;
    N CS取值是大于等于2的整数,或,与
    Figure PCTCN2019105791-appb-100025
    相同;
    n rand用于确定不同符号上的随机相位旋转;
    其中,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100026
    其中,
    Figure PCTCN2019105791-appb-100027
    表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号索引或符号索引或符号编号,c(i)是伪随机序列,初始值c init
    Figure PCTCN2019105791-appb-100028
    表示序列索引或资源索引, K取值为大于等于0的整数;
    或者,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100029
    其中,l表示slot内的符号索引,c(i)是伪随机序列初始值
    Figure PCTCN2019105791-appb-100030
    可以是序列索引或资源索引,K取值可以是大于等于0的整数。
  5. 根据权利要求3或4所述的方法,其特征在于,所述序列为伪随机序列。
  6. 根据权利要求1或2所述的方法,其特征在于,所述随机相位因子为:(-j lgr u,v(n))或者
    Figure PCTCN2019105791-appb-100031
    所述循环移位相位α i,l满足以下公式:
    Figure PCTCN2019105791-appb-100032
    或者,
    Figure PCTCN2019105791-appb-100033
    其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
    Figure PCTCN2019105791-appb-100034
    表示最大循环位移值;
    Figure PCTCN2019105791-appb-100035
    为comb偏移值,取值范围为
    Figure PCTCN2019105791-appb-100036
    Figure PCTCN2019105791-appb-100037
    为总端口数;p i表示当前端口号;
    u为预设值,或者,u的取值与时隙索引、符号索引相关;r u,v(l)为通过计算机搜索生成的序列;当序列长度为M ZC∈{6,12,18,24}时,序列表达式为:
    Figure PCTCN2019105791-appb-100038
    当序列长度为M ZC=30时,序列表达式为:
    Figure PCTCN2019105791-appb-100039
  7. 一种参考信号处理方法,其特征在于,所述方法包括:
    从终端接收一个或多个符号;
    得到参考信号,其中,所述参考信号的序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示所述参考信号是通过第i个端口发送的,l表示所述序列映射的符号数或符号索引或符号编号;
    测量所述参考信号,并根据所述测量结果测量确定所述终端的位置信息。
  8. 根据权利要求7所述的方法,其特征在于,所述随机相位因子具体与以下参数中 的任一项相关:
    所述序列所映射的符号对应的符号索引;或者,
    所述序列所映射的符号对应的符号索引以及所映射的时隙的时隙索引;或者,
    计算机搜索生成的序列。
  9. 根据权利要求7或8所述的方法,其特征在于,所述随机因子为:
    Figure PCTCN2019105791-appb-100040
    所述循环移位的相位α i,l满足以下公式:
    Figure PCTCN2019105791-appb-100041
    Figure PCTCN2019105791-appb-100042
    其中,
    Figure PCTCN2019105791-appb-100043
    其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
    Figure PCTCN2019105791-appb-100044
    表示最大循环位移值;
    Figure PCTCN2019105791-appb-100045
    为comb偏移值,取值范围为
    Figure PCTCN2019105791-appb-100046
    Figure PCTCN2019105791-appb-100047
    为总端口数;p i表示当前端口号;
    n rand用于表示不同符号上的随机相位旋转,其中,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100048
    其中,
    Figure PCTCN2019105791-appb-100049
    表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号索引或符号索引或符号编号,c(i)是伪随机序列,初始值c init
    Figure PCTCN2019105791-appb-100050
    表示序列索引或资源索引,K取值为大于等于0的整数;
    或者,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100051
    其中,l表示slot内的符号索引,c(i)是伪随机序列初始值
    Figure PCTCN2019105791-appb-100052
    可以是序列索引或资源索引,K取值可以是大于等于0的整数。
  10. 根据权利要求7或8所述的方法,其特征在于,所述随机相位因子为:
    Figure PCTCN2019105791-appb-100053
    所述循环移位的相位α i,l满足以下公式:
    Figure PCTCN2019105791-appb-100054
    其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
    Figure PCTCN2019105791-appb-100055
    表示最大循环位移值;
    Figure PCTCN2019105791-appb-100056
    为comb偏移值,取值范围为
    Figure PCTCN2019105791-appb-100057
    Figure PCTCN2019105791-appb-100058
    表示随机相位旋转的粒度;
    Figure PCTCN2019105791-appb-100059
    为总端口数;p i表示当前端口号;
    n rand表示不同符号上的随机相位旋转,其中,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100060
    其中,l表示slot内的符号索引,c(i)是伪随机序列初始值
    Figure PCTCN2019105791-appb-100061
    可以是序列索引或资源索引,K取值可以是大于等于0的整数;
    或者,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100062
    其中,l表示slot内的符号索引,c(i)是伪随机序列初始值
    Figure PCTCN2019105791-appb-100063
    可以是序列索引或资源索引,K取值可以是大于等于0的整数。
  11. 根据权利要求9或10所述的方法,其特征在于,所述序列为伪随机序列。
  12. 根据权利要求7或8所述的方法,其特征在于,所述随机相位因子为-j lgr u,v(l),或者,
    Figure PCTCN2019105791-appb-100064
    所述循环移位的相位α i,l满足以下公式:
    Figure PCTCN2019105791-appb-100065
    或者,
    Figure PCTCN2019105791-appb-100066
    其中,i表示第i个端口,l表示符号数;
    Figure PCTCN2019105791-appb-100067
    表示最大循环位移值;
    Figure PCTCN2019105791-appb-100068
    为comb偏移值,取值范围为
    Figure PCTCN2019105791-appb-100069
    Figure PCTCN2019105791-appb-100070
    为总端口数;
    p i表示当前端口号;
    u为预设值,或者,u的取值与时隙索引、符号索引相关;r u,v(l)为通过计算机搜索生成的序列;当序列长度为M ZC∈{6,12,18,24}时,序列表达式为:
    Figure PCTCN2019105791-appb-100071
    当序列长度为M ZC=30时,序列表达式为:
    Figure PCTCN2019105791-appb-100072
  13. 一种用于参考信号处理的装置,其特征在于,包括:
    生成单元,用于生成参考信号的序列,其中,所述序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示采用第i个端口发送所述参考信号,l表示所述序列映射的符号数或符号索引或符号编号;
    所述生成单元,还用于将所述序列映射到一个或多个符号;
    发送单元,用于发送所述一个或多个符号。
  14. 根据权利要求13所述的装置,其特征在于,所述随机相位因子具体与以下参数中的任一项相关:
    所述序列所映射的符号对应的符号索引;或者,
    所述序列所映射的符号对应的符号索引以及所映射的时隙的时隙索引;或者,
    计算机搜索生成的序列。
  15. 根据权利要求13或14所述的装置,其特征在于,所述随机相位因子为:
    Figure PCTCN2019105791-appb-100073
    所述循环移位的相位α i,l满足以下公式:
    Figure PCTCN2019105791-appb-100074
    Figure PCTCN2019105791-appb-100075
    其中,
    Figure PCTCN2019105791-appb-100076
    其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
    Figure PCTCN2019105791-appb-100077
    表示最大循环位移值;
    Figure PCTCN2019105791-appb-100078
    为comb偏移值,取值范围为
    Figure PCTCN2019105791-appb-100079
    Figure PCTCN2019105791-appb-100080
    为总端口数;p i表示当前端口号;
    Figure PCTCN2019105791-appb-100081
    表示随机相位旋转的粒度;
    N CS取值是大于等于2的整数,或,与
    Figure PCTCN2019105791-appb-100082
    相同;
    n rand用于确定不同符号上的随机相位旋转;
    其中,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100083
    其中,
    Figure PCTCN2019105791-appb-100084
    表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号数或符号索引或符号编号,c(i)是伪随机序列,初始值c init
    Figure PCTCN2019105791-appb-100085
    表示序列索引或资源索引,K取值为大于等于0的整数;
    或者,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100086
    其中,l表示slot内的符号索引,c(i)是伪随机序列初始值
    Figure PCTCN2019105791-appb-100087
    可以是序列索引或资源索引,K取值可以是大于等于0的整数。
  16. 根据权利要求13或14所述的装置,其特征在于,所述随机相位因子为:
    Figure PCTCN2019105791-appb-100088
    所述循环移位的相位α i,l满足以下公式:
    Figure PCTCN2019105791-appb-100089
    Figure PCTCN2019105791-appb-100090
    其中,
    Figure PCTCN2019105791-appb-100091
    其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
    Figure PCTCN2019105791-appb-100092
    表示最大循环位移值;
    Figure PCTCN2019105791-appb-100093
    为comb偏移值,取值范围为
    Figure PCTCN2019105791-appb-100094
    Figure PCTCN2019105791-appb-100095
    为总端口数;p i表示当前端口号;
    Figure PCTCN2019105791-appb-100096
    表示随机相位旋转的粒度;
    N CS取值是大于等于2的整数,或,与
    Figure PCTCN2019105791-appb-100097
    相同;
    n rand用于确定不同符号上的随机相位旋转;
    其中,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100098
    其中,
    Figure PCTCN2019105791-appb-100099
    表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号数或符号索引或符号编号,c(i)是伪随机序列,初始值c init
    Figure PCTCN2019105791-appb-100100
    表示序列索引或资源索引,K取值为大于等于0的整数;
    或者,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100101
    其中,l表示slot内的符号索引,c(i)是伪随机序列初始值
    Figure PCTCN2019105791-appb-100102
    可以是序列索引或资源索引,K取值可以是大于等于0的整数。
  17. 根据权利要求15或16所述的装置,其特征在于,所述序列为伪随机序列。
  18. 根据权利要求13或14所述的装置,其特征在于,所述随机相位因子为:(-j lgr u,v(n)),或者,
    Figure PCTCN2019105791-appb-100103
    所述循环移位相位α i,l满足以下公式:
    Figure PCTCN2019105791-appb-100104
    或者,
    Figure PCTCN2019105791-appb-100105
    其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
    Figure PCTCN2019105791-appb-100106
    表示最大循环位移值;
    Figure PCTCN2019105791-appb-100107
    为comb偏移值,取值范围为
    Figure PCTCN2019105791-appb-100108
    Figure PCTCN2019105791-appb-100109
    为总端口数;p i表示当前端口号;
    u为预设值,或者,u的取值与时隙索引、符号索引相关;r u,v(l)为计算机搜索生成的序列;当序列长度为M ZC∈{6,12,18,24}时,序列表达式为:
    Figure PCTCN2019105791-appb-100110
    当序列长度为M ZC=30时,序列表达式为:
    Figure PCTCN2019105791-appb-100111
  19. 一种参考信号处理的装置,其特征在于,包括:
    接收单元,用于从终端接收一个或多个符号;
    处理单元,用于得到参考信号,其中所述参考信号的序列的循环移位的相位α i,l与随机相位因子相关,其中,i表示所述参考信号是通过第i个端口发送的,l表示所述序列映射的符号数或符号索引或符号编号;
    所述处理单元,还用于测量所述参考信号,并根据所述测量结果测量确定所述终端的位置信息。
  20. 根据权利要求19所述的装置,其特征在于,所述随机相位因子具体与以下参数中的任一项相关:
    所述序列所映射的符号对应的符号索引;或者,
    所述序列所映射的符号对应的符号索引以及所映射的时隙的时隙索引;或者,
    计算机搜索生成的序列。
  21. 根据权利要求19或20所述的装置,其特征在于,所述随机因子为:
    Figure PCTCN2019105791-appb-100112
    所述循环移位的相位α i,l满足以下公式:
    Figure PCTCN2019105791-appb-100113
    Figure PCTCN2019105791-appb-100114
    其中,
    Figure PCTCN2019105791-appb-100115
    其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
    Figure PCTCN2019105791-appb-100116
    表示最大循环位移值;
    Figure PCTCN2019105791-appb-100117
    为comb偏移值,取值范围为
    Figure PCTCN2019105791-appb-100118
    Figure PCTCN2019105791-appb-100119
    为总端口数;p i表示当前端口号;
    n rand用于表示不同符号上的随机相位旋转,其中,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100120
    其中,
    Figure PCTCN2019105791-appb-100121
    表示所述伪随机序列映射的时隙索引,l表示所述时隙内的符号索引,c(i)是伪随机序列,初始值c init
    Figure PCTCN2019105791-appb-100122
    表示序列索引或资源索引,K取值为大于等于0的整数;
    或者,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100123
    其中,l表示slot内的符号数或符号索引或符号编号引,c(i)是伪随机序列初始值
    Figure PCTCN2019105791-appb-100124
    可以是序列索引或资源索引,K取值可以是大于等于0的整数。
  22. 根据权利要求19或20所述的装置,其特征在于,所述随机相位因子为:
    Figure PCTCN2019105791-appb-100125
    所述循环移位的相位α i,l满足以下公式:
    Figure PCTCN2019105791-appb-100126
    其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
    Figure PCTCN2019105791-appb-100127
    表示最大循环位移值;
    Figure PCTCN2019105791-appb-100128
    为comb偏移值,取值范围为
    Figure PCTCN2019105791-appb-100129
    Figure PCTCN2019105791-appb-100130
    表示随机相位旋转的粒度;
    Figure PCTCN2019105791-appb-100131
    为总端口数;p i表示当前端口号;
    n rand表示不同符号上的随机相位旋转,其中,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100132
    其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
    Figure PCTCN2019105791-appb-100133
    可以是序列索引或资源索引,K取值可以是≥0的整数;
    或者,n rand满足以下公式:
    Figure PCTCN2019105791-appb-100134
    其中,l表示slot内的符号数或符号索引或符号编号,c(i)是伪随机序列初始值
    Figure PCTCN2019105791-appb-100135
    可以是序列索引或资源索引,K取值可以是大于等于0的整数。
  23. 根据权利要求21或22所述的装置,其特征在于,所述序列为伪随机序列。
  24. 根据权利要求19或20所述的装置,其特征在于,所述随机相位因子为 -j lgr u,v(l),或者,
    Figure PCTCN2019105791-appb-100136
    所述所述循环移位的相位α i,l满足以下公式:
    Figure PCTCN2019105791-appb-100137
    或者,
    Figure PCTCN2019105791-appb-100138
    其中,i表示第i个端口,l表示符号数或符号索引或符号编号;
    Figure PCTCN2019105791-appb-100139
    表示最大循环位移值;
    Figure PCTCN2019105791-appb-100140
    为comb偏移值,取值范围为
    Figure PCTCN2019105791-appb-100141
    Figure PCTCN2019105791-appb-100142
    为总端口数;
    p i表示当前端口号;
    u为预设值,或者,u的取值与时隙索引、符号索引相关;r u,v(l)为计算机搜索生成的序列;当序列长度为M ZC∈{6,12,18,24}时,序列表达式为:
    Figure PCTCN2019105791-appb-100143
    当序列长度为M ZC=30时,序列表达式为:
    Figure PCTCN2019105791-appb-100144
  25. 一种计算机可读存储介质,存储有计算机指令,当运行所述指令时,使得计算机执行如权利要求1-6任一项所述的方法,或者,使得计算机执行如权利要求7-12任一项所述的方法。
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