WO2021208390A1 - Procédé et appareil de communication - Google Patents

Procédé et appareil de communication Download PDF

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Publication number
WO2021208390A1
WO2021208390A1 PCT/CN2020/122204 CN2020122204W WO2021208390A1 WO 2021208390 A1 WO2021208390 A1 WO 2021208390A1 CN 2020122204 W CN2020122204 W CN 2020122204W WO 2021208390 A1 WO2021208390 A1 WO 2021208390A1
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Prior art keywords
sequence
signal
time domain
identifier
mod
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PCT/CN2020/122204
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English (en)
Chinese (zh)
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曲秉玉
位祎
李雪茹
龚名新
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华为技术有限公司
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Priority to CN202080099925.XA priority Critical patent/CN115428378A/zh
Publication of WO2021208390A1 publication Critical patent/WO2021208390A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • This application relates to the field of communication, and more specifically, to a communication method and device.
  • uplink reference signals such as uplink demodulation reference signal (DMRS) and uplink sounding reference signal (SRS)
  • DMRS uplink demodulation reference signal
  • SRS uplink sounding reference signal
  • the sequence of the random access preamble signal are all generated according to the base sequence (base sequence).
  • the base sequence may be generated according to a ZC (Zadoff-Chu) sequence.
  • the base sequence may be the ZC sequence itself, or the base sequence may be a sequence generated by the ZC sequence through cyclic expansion or interception.
  • a base sequence that is, terminal devices in the same cell may use SRS sequences generated from different base sequences.
  • the interference between SRS sequences in a cell increases, and the channel estimation accuracy of stationary users decreases; for another example, the inter-cell SRS interference increases, which causes the channel estimation accuracy of cell edge users to decrease.
  • the terminal equipment can be made to use different base sequences to generate SRS sequences in different SRS measurement periods, so that any one of two users who use different base sequences to generate SRS sequences can be generated.
  • the inter-interference can vary randomly in each SRS measurement period.
  • the sequence group identifier is randomly generated according to a random sequence with the identifier of the reference signal sequence as the initial value.
  • the relationship between the sequence group identifier and the reference signal sequence identifier is irregular, and the value of the sequence group identifier cannot be controlled according to the value of the reference signal sequence identifier. Therefore, when the sequence group hopping is turned on, it may cause very serious intra-cell interference and inter-cell interference. The randomization effect of intra-cell interference and inter-cell interference is poor, and channel estimation is inaccurate.
  • the present application provides a communication method and device.
  • a group identifier for generating a base sequence of a signal sequence interference within and between cells can achieve better randomization effects, so that time domain filtering can be achieved through channel estimation To improve the accuracy of channel estimation.
  • a communication method is provided.
  • the method may be executed by a terminal device, or may also be executed by a chip or circuit configured in the terminal device, which is not limited in this application.
  • the method may include: acquiring a first sequence; generating a first signal according to the first sequence; sending the first signal to the network device; wherein the first sequence is determined by the first base sequence, and the first group identifier of the first base sequence u is determined according to the identification n ID of the first sequence and the time domain position where the first signal is located.
  • the time domain position where the first signal is located includes: n f , And l, where n f represents the system frame number, Represents the time slot number in the system frame, l represents the position of the symbol sending the first signal in the current time slot, the first group identifier u belongs to the first group identifier set, and the first group identifier set includes X group identifiers, X Is an integer greater than 1.
  • the first signal may be a reference signal, or the first signal may also be a control signal, or the first signal may also be a synchronization signal, and the first signal may also be other sequence-based signals.
  • the specific form of the first signal is not limited by the embodiment itself.
  • the system frame number is also introduced, so that when the period of the first signal is greater than one system frame, it can also play the advantage of interference randomization.
  • the first group of identifiers u satisfies the following formula:
  • Z and K are both integers greater than or equal to 1; c(i) is a pseudo-random sequence, Means rounding down, Represents the number of symbols in a time slot; mod represents the remainder operation.
  • the first group identifier u satisfies the following formula:
  • the value of Z may be 8, for example.
  • the value of K may be the number of symbols in a system frame.
  • the initial seed of the pseudo-random sequence c(i) is
  • a communication method is provided.
  • the method may be executed by a terminal device, or may also be executed by a chip or circuit configured in the terminal device, which is not limited in this application.
  • the method may include: acquiring a first sequence; generating a first signal according to the first sequence; sending the first signal to the network device; wherein the first sequence is determined by the first base sequence, and the first group of the first base sequence
  • the identifier u is determined based on the product of the first part f 1 and the second part f 2.
  • the first part f 1 is related to the time domain position where the first signal is located
  • the second part f 2 is related to the identification n ID of the first sequence.
  • a group of identifiers u belong to the first group of identifiers, and the first group of identifiers includes X group identifiers, and X is an integer greater than 1.
  • the first signal may be a reference signal, or the first signal may also be a control signal, or the first signal may also be a synchronization signal, and the first signal may also be other sequence-based signals.
  • the specific form of the first signal is not limited by the embodiment itself.
  • the group identity (ID) of the base sequence of the signal sequence (such as the first sequence)
  • the group identity (ID) of the base sequence is established and the signal sequence (such as the reference signal sequence (RS) The relationship between the identification of sequence)) and the position in the time domain.
  • the group identification of the base sequence can be processed through non-linearization.
  • the group identification of the base sequence can be determined based on the product of two parts, of which one part is related to the time domain position where the signal is located, and the other is related to the identification of the signal sequence.
  • this operation method makes the intra-cell and inter-cell interference can achieve a better randomization effect, so that the channel estimation accuracy can be improved through the channel estimation time-domain filtering, and it is simpler than the addition operation Easy.
  • the method before acquiring the first sequence, further includes: receiving indication information from the network device, where the indication information is used to indicate the identifier n ID .
  • the first group identifier of the first base sequence u is determined according to a product of a first portion and a second portion f 1 f 2, comprising u satisfies the following formula:
  • the first part f 1 is related to the time domain position where the first signal is located, including: the first part f 1 is related to: time domain position, identification n ID , and X .
  • the first part f 1 is related to: time domain position, identification n ID , and X, including:
  • the time domain position where the first signal is located includes: And l, where, Represents the time slot number in the system frame, and l represents the position of the symbol sending the first signal in the current time slot.
  • the first part f 1 is related to the time domain position where the first signal is located. Therefore, the interference between terminal devices can be randomized without increasing the inter-cell and intra-cell interference, thereby enabling channel estimation Time domain filtering to improve the accuracy of channel estimation.
  • the first part f 1 is related to the time domain position where the first signal is located, including that the first part f 1 satisfies the following formula:
  • Z is an integer greater than 1 or equal to 1;
  • c(i) is a pseudo-random sequence, and the initial seed of c(i) is Means round down, Represents the number of symbols in a time slot; mod represents the remainder operation.
  • the time domain position where the first signal is located includes: n f , And l, where n f represents the system frame number, Represents the time slot number in the system frame, and l represents the position of the symbol sending the first signal in the current time slot.
  • the first part f 1 is related to the time domain position where the first signal is located, specifically including that the first part f 1 satisfies the following formula:
  • Z and K are both integers greater than or equal to 1; c(i) is a pseudo-random sequence, and the initial seed of c(i) is Means rounding down, Represents the number of symbols in a time slot; mod represents the remainder operation.
  • the value of Z may be 8, for example.
  • the value of K may be the number of symbols in a system frame.
  • the second part f 2 is related to the identification n ID of the first sequence, specifically including: the second part f 2 is related to the identification n ID and X.
  • the first group identifier u of the first base sequence is determined according to the product of the first part f 1 and the second part f 2 .
  • the signal sequence group hopping method can be designed to randomize the interference between terminal devices without increasing the interference within and between cells, so that the channel can be improved by channel estimation time domain filtering. Estimated accuracy.
  • the second part f 2 is related to: the identification n ID and X, including: the second part f 2 is related to n ID mod X, where mod represents the remainder Operation.
  • the final calculation result that is, the group identification
  • a communication method is provided.
  • the method may be executed by a network device, or may also be executed by a chip or circuit configured in the network device, which is not limited in this application.
  • the method may include: receiving a first signal from a first terminal device; determining a first sequence, and processing the first signal according to the first sequence; wherein the first sequence is determined by the first base sequence, and the first base sequence
  • the first group of identifier u is determined according to the identifier n ID of the first sequence and the time domain position where the first signal is located.
  • the time domain position where the first signal is located includes: n f , And l, where n f represents the system frame number, Represents the time slot number in the system frame, l represents the position of the symbol sending the first signal in the current time slot, the first group identifier u belongs to the first group identifier set, and the first group identifier set includes X group identifiers, X Is an integer greater than 1.
  • the first group of identifiers u satisfies the following formula:
  • Z and K are both integers greater than or equal to 1; c(i) is a pseudo-random sequence, Means rounding down, Represents the number of symbols in a time slot; mod represents the remainder operation.
  • the first group identifier u satisfies the following formula:
  • the value of Z may be 8, for example.
  • the value of K may be the number of symbols in a system frame.
  • the initial seed of the pseudo-random sequence c(i) is
  • a communication method is provided.
  • the method may be executed by a network device, or may also be executed by a chip or circuit configured in the network device, which is not limited in this application.
  • the method may include: receiving a first signal from a first terminal device; determining a first sequence, and processing the first signal according to the first sequence; wherein the first sequence is determined by the first base sequence, and the first base sequence
  • the first group of identifier u is determined based on the product of the first part f 1 and the second part f 2.
  • the first part f 1 is related to the time domain position where the first signal is located
  • the second part f 2 is related to the first sequence of identifier n ID is related
  • the first group identifier u belongs to the first group identifier set
  • the first group identifier set includes X group identifiers
  • X is an integer greater than 1.
  • the first signal may be a reference signal, or the first signal may also be a control signal, or the first signal may also be a synchronization signal, and the first signal may also be other sequence-based signals.
  • the specific form of the first signal is not limited by the embodiment itself.
  • the method before receiving the signal from the first terminal device, the method further includes: sending indication information to the first terminal device, where the indication information is used to indicate the identifier n ID .
  • the first group identifier of the first base sequence u is determined by the product of the first portion and the second portion f 1 f 2, comprising u satisfies the following formula:
  • the first part f 1 is related to the time domain location where the first signal is located, including: the first part f 1 is related to: time domain location, identification n ID , and X .
  • the first part f 1 is related to: time domain position, identification n ID , and X, including:
  • the time domain position includes: And l, where, Represents the time slot number in the system frame; l represents the position of the symbol sending the first signal in the current time slot.
  • the first part f 1 is related to the time domain position where the first signal is located, including the first part f 1 satisfies the following formula:
  • Z is an integer greater than 1 or equal to 1;
  • c(i) is a pseudo-random sequence, and the initial seed of c(i) is Means round down, Represents the number of symbols in a time slot; mod represents the remainder operation.
  • the time domain position where the first signal is located includes: n f , And l, where n f represents the system frame number, Represents the time slot number in the system frame, and l represents the position of the symbol sending the first signal in the current time slot.
  • the first part f 1 is related to the time domain position where the first signal is located, including that the first part f 1 satisfies the following formula:
  • Z and K are both integers greater than or equal to 1; c(i) is a pseudo-random sequence, and the initial seed of c(i) is Means rounding down, Represents the number of symbols in a time slot; mod represents the remainder operation.
  • the value of Z may be 8, for example.
  • the value of K may be the number of symbols in a system frame.
  • the second part f 2 is related to the identification n ID of the first sequence, specifically including: the second part f 2 is related to the identification n ID and X.
  • the second part f 2 is related to: the identification n ID and X, including: the second part f 2 is related to n ID mod X, where mod represents the remainder Operation.
  • the method further includes: indicating the first identification n ID to one or more second terminal devices, and the one or more second terminal devices use the first base sequence to generate In the first sequence, one or more second terminal devices are located in the same cell as the first terminal device.
  • the network equipment can configure the same signal sequence identifier n ID for the terminal equipment that uses the same base sequence to generate the signal sequence in the cell, and the network equipment can configure different configurations for the terminal equipment that uses different base sequences to generate the signal sequence in the cell.
  • the signal sequence identification n ID .
  • the method further includes: indicating the second n ID to one or more third terminal devices, and the one or more third terminal devices use the second base sequence to generate the first In a sequence, one or more third terminal devices are located in the same cell as the first terminal device, and the first base sequence is different from the second base sequence.
  • the method further includes: indicating X'different identifiers of the first sequence to the terminal devices in the A cells, and the A cells include the location where the first terminal device is located.
  • a cell where A is an integer greater than 2 or equal to 2, and X'is an integer greater than 2 or equal to 2, and less than X or equal to X.
  • the network equipment can be multiple cells (for example, denoted as A cells), such as multiple cells with greater interference, and configure multiple different signal sequence identifiers (that is, the identifier of the first sequence).
  • Terminal devices in each cell can use different signal sequence identifiers, so that strong inter-cell interference can be avoided as much as possible.
  • a communication device configured to execute the method provided in the above-mentioned first aspect or the second aspect.
  • the communication device may include a module for executing the method provided in the first aspect.
  • a communication device is provided, and the communication device is configured to execute the method provided in the third aspect or the fourth aspect.
  • the communication device may include a module for executing the method provided in the second aspect.
  • a communication device including a processor.
  • the processor is coupled with the memory and can be used to execute instructions in the memory to implement the method in any one of the first aspect or the second aspect described above in the first aspect or the second aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, the processor is coupled with the communication interface, and the communication interface is used to input and/or output information.
  • the information includes at least one of instructions and data.
  • the communication device is a terminal device.
  • the aforementioned communication interface may be a transceiver or an input/output interface.
  • the communication device is a chip or a chip system.
  • the communication interface may be an input/output interface, which may be an input/output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip or chip system.
  • the processor can also be embodied as a processing circuit or a logic circuit.
  • the communication device is a chip or a chip system configured in a terminal device.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a communication device including a processor.
  • the processor is coupled with the memory and can be used to execute instructions in the memory to implement the method in any one of the foregoing third aspect or fourth aspect and the third aspect or fourth aspect.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, the processor is coupled with the communication interface, and the communication interface is used to input and/or output information.
  • the information includes at least one of instructions and data.
  • the communication device is a network device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the communication device is a chip or a chip system.
  • the communication interface may be an input/output interface, interface circuit, output circuit, input circuit, pin or related circuit on the chip or chip system.
  • the processor can also be embodied as a processing circuit or a logic circuit.
  • the communication device is a chip or a chip system configured in a network device.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • a computer-readable storage medium on which a computer program is stored.
  • the communication device realizes the first aspect or the second aspect and any one of the first aspect or the second aspect.
  • a computer-readable storage medium on which a computer program is stored.
  • the communication device realizes the third aspect or the fourth aspect, and any of the third or fourth aspects.
  • a computer program product containing instructions is provided, which when executed by a computer causes the computer to implement the method provided in the first aspect or the second aspect.
  • a computer program product containing instructions is provided, which when executed by a computer causes the computer to implement the method provided in the third aspect or the fourth aspect.
  • a communication system including the aforementioned network equipment and terminal equipment.
  • Fig. 1 is a schematic diagram of a communication system suitable for an embodiment of the present application
  • Figures 2 and 3 show schematic diagrams of introducing multiple SRS base sequences in a cell
  • Fig. 4 is a schematic diagram of a communication method provided according to an embodiment of the present application.
  • Fig. 5 is a schematic diagram of a communication method applicable to an embodiment of the present application.
  • Fig. 6 is a schematic diagram of a communication device provided according to an embodiment of the present application.
  • Fig. 7 is a schematic diagram of a communication device provided according to another embodiment of the present application.
  • FIG. 8 is a schematic diagram of a terminal device applicable to an embodiment of the present application.
  • Fig. 9 is a schematic diagram of a network device suitable for an embodiment of the present application.
  • the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency Frequency division duplex (FDD) system, LTE time division duplex (TDD), universal mobile telecommunication system (UMTS), etc.
  • 5G fifth generation
  • LTE long term evolution
  • FDD Frequency division duplex
  • TDD time division duplex
  • UMTS universal mobile telecommunication system
  • FIG. 1 is a schematic diagram of a communication system 100 applicable to an embodiment of the present application.
  • the communication system 100 may include at least one network device, such as the network device 111 shown in FIG. 1, and the communication system 100 may also include at least one terminal device, such as the terminal device 121 to the terminal shown in FIG. Equipment 123. Both network equipment and terminal equipment can be equipped with multiple antennas, and the network equipment and terminal equipment can communicate using multiple antenna technology.
  • the network device when a network device communicates with a terminal device, the network device may manage one or more cells, and there may be an integer number of terminal devices in a cell.
  • the network device 111 and the terminal device 121 to the terminal device 123 form a single-cell communication system.
  • the cell is denoted as cell #1.
  • the network device 111 may be a network device in the cell #1, or in other words, the network device 111 may serve a terminal device (for example, the terminal device 121) in the cell #1.
  • a cell can be understood as an area covered by a wireless signal of a network device.
  • the communication system 100 may include a greater number of network devices or a greater number of terminal devices, or the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices.
  • the embodiments of this application do not limit this.
  • the communication system 100 may also include other network entities such as a network controller, a mobility management entity, and the embodiment of the present application is not limited thereto.
  • the network device in the communication system 100 may be any device with a wireless transceiver function.
  • the equipment includes but is not limited to: evolved Node B (eNB), Radio Network Controller (RNC), Node B (Node B, NB), Base Station Controller (BSC) , Base Transceiver Station (BTS), Home Node B (HNB), Home evolved NodeB (HeNB), BaseBand Unit (BBU), Wireless Fidelity, WIFI) system access point (Access Point, AP), wireless relay node, wireless backhaul node, transmission point (transmission point, TP), network node in vehicle network communication (such as roadside station, vehicle equipment, etc.) ) Or the transmission and reception point (TRP), etc., it can also be 5G, such as NR, the gNB in the system, or the transmission point (TRP or TP), one or a group of base stations in the 5G system ( Including multiple antenna panels)
  • the antenna panel may also be a network node constituting a gNB or transmission point
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (AAU for short).
  • CU implements part of the functions of gNB
  • DU implements part of the functions of gNB.
  • the CU is responsible for processing non-real-time protocols and services, and implements radio resource control (radio resource control, RRC) and packet data convergence protocol (packet data convergence protocol, PDCP) layer functions.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing the physical layer protocol and real-time services, and realizes the functions of the radio link control (RLC) layer, the media access control (MAC) layer, and the physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • AAU realizes some physical layer processing functions, radio frequency processing and related functions of active antennas. Since the information of the RRC layer will eventually become the information of the PHY layer, or be transformed from the information of the PHY layer, under this architecture, high-level signaling, such as RRC layer signaling, can also be considered to be sent by the DU , Or, sent by DU+AAU.
  • the network device may be a device that includes one or more of a CU node, a DU node, and an AAU node.
  • the CU can be divided into network equipment in an access network (radio access network, RAN), and the CU can also be divided into network equipment in a core network (core network, CN), which is not limited in this application.
  • the terminal equipment in the communication system 100 may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile equipment, User terminal, terminal, wireless communication device, user agent, or user device.
  • the terminal device in the embodiment of the present application may be a mobile phone (mobile phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (VR) terminal device, and an augmented reality (AR) terminal Equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in remote medical, wireless terminals in smart grid, transportation safety ( The wireless terminal in transportation safety, the wireless terminal in the smart city, the wireless terminal in the smart home, and so on.
  • the embodiments of this application do not limit the application scenarios.
  • Base sequence base sequence
  • ZC Zadoff-Chu
  • the sequences of uplink reference signals are all generated according to the base sequence.
  • DMRS demodulation reference signal
  • SRS sounding reference signal
  • A is a complex number
  • ⁇ is a real number determined by a time-domain cyclic shift (also referred to as a cyclic shift value in this article)
  • j It is an imaginary unit
  • exp represents an exponential function with e as the base.
  • the base sequence may be a sequence generated from the ZC sequence.
  • the base sequence may be the ZC sequence itself, or the base sequence may also be a sequence generated by cyclic shift expansion or interception of the ZC sequence.
  • a ZC sequence of length N is denoted as z q (n), and z q (n) can be expressed in the following form:
  • N is an integer greater than 1, and N represents the length of the ZC sequence.
  • q is the root of the ZC sequence (also called root index or root index), a natural number that is relatively prime to N, and 0 ⁇ q ⁇ N.
  • q indicates that the root of the ZC sequence generating the base sequence is q.
  • ⁇ represents the value determined according to the time domain cyclic shift, which is also called the cyclic shift value.
  • the terminal device can map the reference signal sequence of length M to M subcarriers in a certain order according to the subcarrier index, such as from small to large or from large to small, to generate the reference signal, and Send to the network device.
  • the uplink reference signal is a reference signal (reference signal, RS) sent by a terminal device.
  • the uplink reference signal may include, but is not limited to, for example, SRS, DMRS of the uplink control channel, discrete fourier transform-spread orthogonal frequency division multiplexing (DFT-s-OFDM) waveform Downlink physical uplink shared channel (PUSCH) DMRS, phase tracking reference signal, etc.
  • the uplink reference signal can be used to obtain uplink channel state information, and the channel state information can be used for demodulation and detection of uplink data.
  • the uplink reference signal can also be used to obtain downlink channel state information.
  • the network device can obtain downlink channel state information by measuring the SRS sequence sent by the terminal device.
  • the channel state information can be used to determine precoding, modulation and coding schemes, etc. during downlink data transmission. It can be seen that obtaining accurate channel state information based on the uplink reference signal is very important for the efficiency of uplink data transmission or downlink data transmission.
  • An SRS sequence can be generated from a base sequence.
  • the SRS sequence s(m) of length M can be generated from the base sequence r(m) by the following formula.
  • ⁇ 1 and ⁇ 2 satisfy: ⁇ 1 mod2 ⁇ 2 mod2 ⁇ , the sequence obtained from the base sequence r(m) and ⁇ 1 and the sequence obtained from the base sequence r(m) and ⁇ 2 are orthogonal to each other , That is, the cross-correlation coefficient is zero.
  • the SRS sequences obtained based on the same base sequence and different cyclic shift values ⁇ can be allocated to different users, and these users can send these based on the same base sequence on the same time-frequency resource.
  • the SRS sequences generated by the cyclic shift when the delay spread of the user's channel is less than the time length corresponding to the cyclic shift difference, these SRS sequences will not cause interference between users.
  • the interference between SRS sequences obtained by using the same or different cyclic shift values ⁇ is not zero. That is to say, SRS sequences obtained based on the same or different cyclic shift values of different base sequences are allocated to different users, and these users can send these SRS generated based on the cyclic shift of different base sequences on the same time-frequency resource. Sequence, these SRS sequences may cause inter-user interference.
  • the length M of a variety of SRS sequences is given, and the length of the SRS sequence greater than or equal to 72 is selected (that is, the value of each M), respectively 60 base sequences are defined.
  • a maximum prime number less than or equal to M can be determined, such as N ZC , as the length of the ZC sequence that generates the SRS sequence.
  • these 60 base sequences can be generated from ZC sequences with the same length and different roots. Further, the 60 base sequences are divided into 30 sequence groups, and the base sequences of different sequence groups can be allocated to different cells.
  • the formula for determining the root index q currently defined by 3GPP is:
  • v 0 or 1
  • u 0,1,...,29.
  • u is the group serial number, representing 30 groups, and each group has two root serial numbers, which are determined by v. u and v are configured for terminal equipment by sending configuration information through network equipment.
  • the relationship between the root q of these 60 ZC sequences and the group number u of the base sequence can be shown in Table 1 below Show.
  • the base sequence of different group identifiers corresponds to the value of the root index of the ZC sequence, that is, the group identifier of the base sequence corresponds to the value of the root index of the ZC sequence
  • the group identifier of a base sequence can correspond to the values of the root indicators of two ZC sequences.
  • the sequence group identifier u of the SRS sequence currently specified by 3GPP is defined by the following formula 1:
  • c(i) is a pseudo-random sequence, and its initial seed is Variables unique to terminal devices, that is, each terminal device has a Different terminal equipment It can be the same or different.
  • x 1 (n+31) (x 1 (n+3)+x 1 (n))mod 2
  • x 2 (n+31) (x 2 (n+3)+x 2 (n+2)+x 2 (n+1)+x 2 (n))mod 2
  • a base sequence that is, terminal devices in the same cell may use SRS sequences generated from different base sequences.
  • users in the same cell can be configured with appropriate Value so that the terminal equipment in the same cell corresponds to two possible values of the sequence group identifier.
  • the cell terminal device uses the calculation formula of the sequence group identifier u defined in the existing standard, that is, the above formula 1, and the possible value of u calculated is a or b. At this time, there are two base sequences in the cell.
  • the terminal equipment can be made to use different base sequences to generate SRS sequences in different SRS measurement periods, so that any one of two users who use different base sequences to generate SRS sequences can be generated.
  • the inter-interference can vary randomly in each SRS measurement period.
  • sequence group identifier u can be determined according to the following formula 3:
  • c(i) is a pseudo-random sequence, and its initial seed is Variables unique to terminal devices, that is, each terminal device has a Different terminal equipment It can be the same or different.
  • the method of generating the pseudo-random sequence c(i) in the existing standard is Equation 2 above.
  • a set of users using the same base sequence in the same cell may be referred to as a user group.
  • users in the cell are divided into two user groups. Users belonging to the same user group use the same SRS base sequence to generate SRS sequences, and users belonging to different groups use different The SRS base sequence generates the SRS sequence.
  • the sequence group hopping when turned on, it may increase the interference between neighboring cells.
  • sequence group hopping When sequence group hopping is turned on, it may cause users in two adjacent cells to use the same u, which increases interference between adjacent cells.
  • the cell contains two user groups, the first user group in cell one Both are 5, the user's in the second user group of cell one Both are 6, the users in the first user group in cell two Both are 7, the user's in the second user group of cell two Both are 8, so the base sequence used by the users in the two cells will be the same during the fifth and eighth SRS transmissions.
  • the sequence group identifier u is based on Randomly generated for a random sequence of initial values, u and There is no rule to find the relationship between, and it cannot be based on To control the value of u so as to avoid The values of u corresponding to different terminal devices are the same. Therefore, when the sequence group hopping is turned on, it may cause very serious intra-cell interference and inter-cell interference. The randomization effect of intra-cell interference and inter-cell interference is poor, and the channel estimation result is inaccurate.
  • the time domain position of the reference signal corresponds to And l may remain unchanged, which will cause the sequence used by the reference signal to not change over time, and the effect of interference randomization cannot be achieved.
  • the embodiments of the present application propose a method that can randomize the interference between the terminal devices that generate reference signals based on different base sequences between cells and within the cell, so that the interference within and between cells can achieve better Randomization effect, which can improve channel estimation accuracy through channel estimation time domain filtering.
  • FIG. 4 is a schematic interaction diagram of a communication method 400 provided by an embodiment of the present application.
  • the method 400 may include the following steps.
  • the terminal device obtains the first sequence.
  • the first sequence can be determined by the first base sequence, and the first group identifier u of the first base sequence is determined based on the product of the first part f 1 and the second part f 2 , Where the first part f 1 is related to the time domain position where the first signal is located, and the second part f 2 is related to the identification of the first sequence.
  • the group identity (ID) of the base sequence of the signal sequence (such as the first sequence) is designed to establish the group identity (ID) of the base sequence and the signal sequence (such as the reference signal sequence) (RS sequence)) and the relationship between the time domain position.
  • the group identification of the base sequence can be determined based on the product of two parts, where one part is related to the time domain position where the signal is located, and the other is related to the identification of the signal sequence.
  • this operation method makes the intra-cell and inter-cell interference can achieve a better randomization effect, so that the channel estimation accuracy can be improved through the channel estimation time-domain filtering, and it is simpler than the addition operation Easy.
  • obtaining the group identifier may be obtained by performing non-linear processing on f 1 and/or f 2 , such as a power operation.
  • the first sequence can represent a signal sequence or a sequence of signals.
  • the embodiment of the present application does not limit the specific form of the signal (for example, the first signal).
  • the first signal may be a reference signal, or the first signal may also be a control signal, or the first signal may also be a synchronization signal, or the first signal may also be another sequence-based signal.
  • the signal is not limited.
  • the terminal device obtains the reference signal sequence, which may be calculated by the terminal device through a formula. For example, the terminal device generates a reference signal sequence according to the first base sequence and a predefined rule. In another possible implementation manner, the terminal device obtains the reference signal sequence, or the terminal device obtains the pre-generated reference signal sequence by looking up the table. In this regard, the embodiment of the present application does not limit this.
  • the reference signal sequence is determined by the first base sequence. It can be understood that the reference signal sequence may be generated from the first base sequence, or the reference signal sequence may be obtained by looking up the table according to the first base sequence. . In this regard, the embodiment of the present application does not limit it.
  • the SRS sequence s(m) of length M can be generated from the base sequence r(m) by the following formula.
  • the terminal device generates a first signal according to the first sequence.
  • the terminal device Taking a reference signal as an example, the terminal device generates a reference signal according to the reference signal sequence.
  • Generating the reference signal according to the reference signal sequence means that the reference signal sequence is mapped to a reference signal resource (such as a time-frequency resource or a transmission resource for transmitting the reference signal), and then the reference signal is sent through the reference signal resource.
  • a reference signal resource such as a time-frequency resource or a transmission resource for transmitting the reference signal
  • the terminal device sends the first signal to the network device.
  • the terminal device Taking a reference signal as an example, the terminal device generates a reference signal according to the reference signal sequence, and the terminal device sends the reference signal to the network device.
  • the reference signal may be SRS.
  • the reference signal may also be a reference signal used for channel estimation. There is no restriction on this.
  • the group identifier is denoted as u, and the reference signal sequence is described in detail.
  • the group identifier u satisfies formula 4.
  • mod represents the remainder operation. It should be understood that the embodiments of the present application do not limit the remainder operation. For any operation, as long as f 1 *f 2 is processed, the calculated value of f 1 *f 2 is [0, X-1]. The mod operation is taken as an example description below.
  • X represents the number of group identifiers in the first group identifier set
  • X is an integer greater than 1
  • u belongs to the first group identifier set.
  • X 30.
  • the first set of identifiers is only a name, and does not limit the protection scope of the embodiments of the present application.
  • the first set of identifiers may also be referred to as a sequence group.
  • the length of the first set of identifiers that is, the value of X
  • the embodiment of the present application does not limit it.
  • the group identifier u satisfies formula 5.
  • the embodiment of the present application does not limit the operation between the first part f 1 and the second part f 2 to be a product operation.
  • the group identifier u may be determined according to the identifier n ID of the first sequence and the time domain position where the first signal is located.
  • the time domain position where the first signal is located may include n f , And l.
  • n f represents the system frame number
  • l represents the position of the symbol sending the first signal in the current time slot.
  • the group identifier u can satisfy formula 6.
  • the group identifier u can be expressed as formula 7.
  • the group identifier u can be expressed as formula 8.
  • Z and K are both integers greater than or equal to 1.
  • the value of Z may be 8, for example.
  • the value of K can be the number of symbols in a system frame.
  • c(i) is a pseudo-random sequence.
  • the initial seed of c(i) is Regarding the generation method of the pseudo-random sequence c(i), it can be generated by the method in the existing standard, for example, formula 2 can be referred to.
  • f 1 is related to the time domain position where the reference signal is located
  • f 2 is related to the identification of the reference signal sequence.
  • f 2 is different and f 1 is the same
  • different terminal devices can be designed to have different reference signal sequence identifiers.
  • formula 4 or formula 5 it can be seen from formula 4 or formula 5 that different terminal devices correspond to different u. Therefore, through the embodiments of this application, it is possible to control the value of u by controlling the identifier of the reference signal sequence, so that the identifier of the reference signal sequence is different.
  • the terminal equipment u of is different, so that the situation as shown in Fig. 2 or Fig. 3 can be avoided, and intra-cell interference and inter-cell interference can be reduced.
  • the identifier n ID of the reference signal sequence can be expressed as:
  • n ID X ⁇ n+offset,offset ⁇ 0,1,2,...,(X-1) ⁇ .
  • n is an integer greater than 0 or equal to 0.
  • n ID may be used to represent the identification of the reference signal sequence. It should be understood that n ID is only for distinguishing different parameters, and it does not limit the protection scope of the embodiments of the present application.
  • the identification of the SRS sequence can also be used Express.
  • the formula satisfied by the group identifier u includes: the time domain position where the reference signal is located and the identifier of the reference signal sequence.
  • u represents the group identifier of the base sequence.
  • the representations used to represent the same parameter in future protocols fall into the embodiments of this application. protected range.
  • f 1 is related to: the time domain position where the reference signal is located, the identification of the reference signal sequence, and X.
  • f 1 and the time domain position of the reference signal and Related. in, Indicates rounding down. It should be understood that the embodiment of the present application does not strictly limit the rounding method.
  • the time domain position where the reference signal is located may include, but is not limited to, for example And l, where, Represents the time slot number in the system frame, and l represents the position of the symbol for sending the reference signal in the current time slot.
  • the time domain position of the reference signal may also include n f , And l, n f represents the system frame number.
  • f 1 can be expressed as Equation 9.
  • Z is an integer greater than or equal to 1.
  • c(i) is a pseudo-random sequence
  • the initial seed of c(i) is n ID represents the identification of the reference signal sequence, Means round down,
  • n ID represents the identification of the reference signal sequence, Means round down
  • formula 2 can be referred to.
  • n ID X ⁇ n+offset,offset ⁇ 0,1,2,...,(X-1) ⁇ .
  • ⁇ represents the subcarrier interval index
  • f represents the frame
  • s represents the time slot.
  • l represents the position of the symbol for sending the reference signal in the current time slot.
  • l represents the lth symbol in a slot.
  • the position in the current time slot of the symbol for transmitting the reference signal. in Represents the number of symbols in a slot.
  • l l 0 +l'.
  • l 0 is the position number of the start symbol of the reference signal resource in the time slot where it is located
  • l offset is the number of symbols counted forward from the end of the time slot
  • l offset ⁇ 0,1,...,5 ⁇ and l offset is greater than or equal to l offset
  • l offset can be configured by high-level parameters, for example, l offset can be configured by the start position (startPosition) field in the high-level parameter resource mapping (resourceMapping).
  • Z and K are both integers greater than or equal to 1.
  • the value of Z may be 8, for example.
  • the value of K may be the number of symbols in a system frame.
  • f 2 is related to: the identifier of the reference signal sequence and X.
  • f 2 is related to n ID mod X.
  • f 2 can be expressed as formula 10.
  • n ID X ⁇ n+offset,offset ⁇ 0,1,2,...,(X-1) ⁇ .
  • X 30
  • n ID 30n+offset, offset ⁇ 0,1,2,...,29 ⁇ .
  • f 1 and f 2 are at least related to the time domain position of the reference signal, or f 1 is at least related to the time domain position of the reference signal, the identification of the reference signal sequence, and X; or, as long as f 2 is at least related to the reference signal sequence It is related to the identification of, or f 2 is at least related to the identification of the reference signal sequence and X, both of which are applicable to the embodiments of the present application.
  • the value of the group identifier of the base sequence can be controlled by controlling the identifier of the reference signal sequence.
  • different reference signal sequence identifiers can be designed, so that the corresponding group identifiers of the base sequence are also different.
  • the other part of the group identifier used to generate the base sequence is related to the time domain position where the reference signal is located, so that the interference between the terminal devices can be randomized without increasing the interference within and between cells, thereby Channel estimation time domain filtering can be used to improve channel estimation accuracy.
  • the group identifier u satisfies formula 11.
  • the initial seed of c(i) is
  • n ID X ⁇ n+offset,offset ⁇ 0,1,2,...,(X-1) ⁇ .
  • the formula that the group identifier u satisfies may exist in a form similar to formula 11; or, it may also exist in a form similar to formula 4 or formula 5, and define f 1 and f 2 form.
  • the reference signal sequence group hopping method can be designed to randomize the interference between terminal devices without increasing the interference within and between cells, so that the channel estimation time domain filtering can be used. To improve the accuracy of channel estimation.
  • n ID can be used to avoid different u corresponding to different terminal devices.
  • One possibility is an implementation method, which can design that n IDs of different terminal devices correspond to the same n but different offsets.
  • n IDs of two terminal devices correspond to the same n but different offsets, it can be seen from Equation 11 that in all symbols, Are the same, (n ID mod X+1) is not the same, so it can be guaranteed that the u used by the two terminal devices are not the same. Therefore, in the embodiment of the present application, the value of n ID can be used to avoid the same u corresponding to different terminal devices.
  • n IDs of different terminal devices are designed to correspond to the same n but different offsets.
  • the difference of u used by different terminal devices is also constantly changing, which can achieve the benefit of interference randomization.
  • f 1 and f 2 are multiplication operations, or, taking formula 11 as an example, And (n ID mod X+1) is a multiplication operation. Therefore, as time changes, the difference of u used by different terminal devices is also constantly changing.
  • the reference signal as the SRS as an example, an exemplary explanation is made to illustrate the change of the difference of u, which can achieve the advantage of interference randomization.
  • the SRS configuration period can be shortened.
  • the degree of channel change in consecutive SRS measurement periods becomes smaller, so channel estimation time domain filtering can be used.
  • several adjacent SRS channel estimation results can be weighted and averaged to improve the accuracy of channel estimation.
  • interference randomization can be introduced to make the channel estimation errors of several adjacent times different.
  • the roots q 1 and q 2 of the two base sequences in cell A are determined by the sequence group identifiers u 1 and u 2 respectively, and the roots q 3 and q 3 of the two base sequences in cell B are determined by sequence group identifiers u 1 and u 2 respectively.
  • q 4 is determined by sequence group identifiers u 3 and u 4 respectively.
  • UE1 uses the base sequence rooted as q 1
  • UE2 uses the base sequence rooted at q 2
  • UE3 uses the base sequence rooted at q 3
  • UE4 uses the base sequence rooted at q 4 Perform channel estimation.
  • four UEs have flat channels on the M subcarriers of the SRS sequence and are respectively h 1 , h 2 , h 3 and h 4 .
  • the signal y(k) received by the network device is:
  • the network device may perform related operations on the received signal and the SRS sequence used by the UE1:
  • the interference caused by UE2 to UE1's channel estimation that is, the intra-cell channel estimation interference.
  • the estimated channel obtained from these SRS measurement periods can be timed. Domain filtering to obtain more accurate channel estimation results.
  • the interference value between the SRS sequences of two terminal devices is determined by the difference between the roots of the two base sequences.
  • n IDs of different terminal devices correspond to the same n but different offsets, not only can it be ensured that different terminal devices use different u, thereby reducing intra-cell and inter-cell interference, but also different terminals
  • the difference of u used by the device is also constantly changing, so that interference randomization can also be achieved.
  • FIG. 5 is a schematic interaction diagram of a communication method 500 applicable to an embodiment of the present application. It should be understood that the method 500 and the method 400 may be used in combination, or may be used alone, which is not limited.
  • the method 500 may be executed first to obtain the base sequence (such as the first base sequence).
  • the method 500 may include the following steps.
  • the network device sends instruction information to the terminal device, where the instruction information is used to indicate the reference signal sequence identifier.
  • the terminal device receives the instruction information.
  • the network device can configure the value of the reference signal sequence identifier n ID for the terminal device through the instruction information.
  • the terminal device obtains the sequence group identifier of the base sequence according to the reference signal sequence identifier.
  • the terminal device may obtain the sequence group identifier of the base sequence according to the value of the reference signal sequence identifier and the time domain position of the reference signal.
  • the terminal device obtains the sequence group identifier of the base sequence according to the value of the reference signal sequence identifier, the number of the time slot for sending the reference signal in the system frame, and the number of the symbol for sending the reference signal in the time slot.
  • the terminal device identifies the value of the reference signal sequence ID n ID , and the number of the time slot for sending the reference signal in the system frame And the number l of the symbol for sending the reference signal in the time slot, and based on formula 11, the sequence group identifier u of the base sequence is obtained.
  • sequence group identifier u of the base sequence reference may be made to the description in the method 400.
  • the network equipment is the terminal equipment in the cell that uses the same base sequence to generate the reference signal sequence, and is configured with the same reference signal sequence identifier n ID .
  • the network equipment is the terminal equipment in the cell that uses different base sequences to generate the reference signal sequence, and the configuration is different The reference signal sequence identifier of n ID .
  • the terminal equipment in the cell can be divided into two terminal equipment groups, such as the first terminal equipment group and the second terminal equipment group, which belong to the same terminal equipment group.
  • the terminal devices of the use the same SRS base sequence to generate the SRS sequence, and the terminal devices belonging to different terminal device groups use different SRS base sequences to generate the SRS sequence.
  • the network device may, for example, n ID of the first terminal device group in the terminal device is a terminal device 2 are in the first group of terminal devices assigned the same n ID,; a second network device may be a terminal device group in the terminal devices assigned the same n ID, e.g., n ID of the second terminal apparatus are set in the terminal apparatus 4, n ID n ID different from the first terminal device group the terminal device and the second terminal device in the terminal device group.
  • terminal device group grouping terminal devices, such as terminal devices that use the same base sequence to generate reference signal sequences in a cell, is called a terminal device group, which is only convenient for description. In actual communication or in standards, it is not limited. There is a concept of a terminal device group.
  • n ID is only an exemplary description, and limits the protection scope of the embodiments of the present application.
  • the network device configures X'different reference signal sequence identifiers n ID for terminal devices using X'different base sequences in one or more cells, X'is a positive integer less than X or equal to X, and X The number of different reference signal sequence identifiers n ID satisfies formula 12, and n ID_offset is different.
  • the network device configures X'different reference signal sequence identifiers n ID for terminal devices using X'different base sequences in N cells with greater interference, X'is a positive integer less than X or equal to X, and X'different reference signal sequence identifiers n ID satisfy formula 12, and n ID_offset are different.
  • n ID X ⁇ n+n ID_offset
  • n is a non-negative integer, that is, n is an integer greater than or equal to zero.
  • n ID_offset ⁇ 0,1,2,...,X-1 ⁇ .
  • the terminal equipment in cell one uses two different base sequences
  • the terminal equipment in cell two uses two different base sequences. That is to say, cell one and cell two respectively contain two terminal equipment groups, and the terminal equipment groups belonging to the same cell can be referred to as a terminal equipment group set.
  • the terminal devices in each terminal device group use the same base sequence.
  • terminal device groups are referred to as a terminal device group set.
  • terminal device group set multiple terminal device groups in a cell are referred to as a terminal device group set for convenience of description.
  • the concept of a collection of terminal equipment groups is not limited.
  • the base sequence used by the reference signal sent by any terminal device can be randomized, so as to randomize any number of terminals belonging to the same terminal device group set but belonging to different terminal device groups Interference between different terminal devices.
  • it can also be ensured that any two terminal devices that belong to the same terminal device group set but belong to different terminal device groups use different base sequences, thereby avoiding strong intra-cell or inter-cell interference.
  • the signal is used as the reference signal and the sequence is the reference signal sequence as an example for exemplifying description, but this does not limit the application.
  • Any signal (such as a control signal or a synchronization signal or other signals based on Sequence of signals) are all applicable to the embodiments of this application.
  • the above-mentioned solution regarding reference signals can be applied to any signal.
  • the reference signal is used as an SRS example for description, but this does not limit the application, and any reference signal is applicable to the embodiments of the application.
  • the upstream reference signal is taken as an example for exemplification, but this does not limit the application. Any signal, for example, including but not limited to: downlink reference signal, vehicle-to-vehicle (V2V) signal, device-to-device (D2D) signal, etc., are applicable In the examples of this application. This application is not restricted.
  • V2V vehicle-to-vehicle
  • D2D device-to-device
  • the first signal may also be a downlink reference signal.
  • the terminal device in the above embodiment can also be replaced with a network device (the terminal device in Figure 4 is replaced with a network device), and the network device can also be replaced with a terminal device (the network device in Figure 4 is replaced with a terminal device)
  • the content of the downlink signal please refer to the above description of the uplink reference signal, which will not be repeated here.
  • the various embodiments described in this document may be independent solutions, or may be combined according to internal logic, and these solutions fall within the protection scope of the present application.
  • the method 400 and the method 500 can be used in combination, or the method 400 and the method 500 can also be used separately.
  • the network device uses the same base sequence to generate a signal sequence (such as a reference signal sequence) in a cell, configures the same signal sequence identifier (such as a reference signal sequence identifier) n ID , and the network device uses different
  • a terminal device that generates a signal sequence (such as a reference signal sequence) based on a base sequence is configured with different signal sequence identifiers (such as a reference signal sequence identifier) n ID .
  • the network device configures X'different signal sequence identifiers (such as reference signal sequence identifiers) n ID for terminal devices that use X'different base sequences in N cells with greater interference, where X'is less than X or a positive integer equal to X, and X'different signal sequence identifiers (such as reference signal sequence identifiers) n ID satisfy Formula 12.
  • X'different signal sequence identifiers such as reference signal sequence identifiers
  • the methods and operations implemented by the terminal device can also be implemented by components (such as chips or circuits) that can be used in the terminal device
  • the methods and operations implemented by the network device can also be implemented by It can be implemented by components (such as chips or circuits) of network devices.
  • each network element such as a transmitting end device or a receiving end device, includes hardware structures and/or software modules corresponding to each function in order to realize the above-mentioned functions.
  • the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.
  • the embodiments of the present application can divide the transmitting end device or the receiving end device into functional modules according to the foregoing method examples.
  • each functional module can be divided corresponding to each function, or two or more functions can be integrated into one processing module. middle.
  • the above-mentioned integrated modules can be implemented in the form of hardware or software functional modules. It should be noted that the division of modules in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation. The following is an example of dividing each function module corresponding to each function.
  • Fig. 6 is a schematic block diagram of a communication device provided by an embodiment of the present application.
  • the communication device 600 includes a transceiver unit 610 and a processing unit 620.
  • the transceiver unit 610 can implement corresponding communication functions, and the processing unit 620 is used for data processing.
  • the transceiving unit 610 may also be referred to as a communication interface or a communication unit.
  • the communication device 600 may further include a storage unit, the storage unit may be used to store instructions and/or data, and the processing unit 620 may read the instructions and/or data in the storage unit, so that the communication device implements the aforementioned method. Examples.
  • the communication device 600 can be used to perform the actions performed by the terminal device in the above method embodiment.
  • the communication device 600 can be a terminal device or a component configurable in the terminal device, and the transceiver unit 610 is used to perform the above method.
  • the processing unit 620 is configured to perform the processing-related operations on the terminal device side in the above method embodiment for the operations related to receiving and sending on the terminal device side.
  • the communication device 600 may be used to perform the actions performed by the network device in the above method embodiment.
  • the communication device 600 may be a network device or a component configurable in the network device, and the transceiver unit 610 is used to perform the above
  • the processing unit 620 is configured to perform the processing-related operations on the network device side in the above method embodiments for the operations related to receiving and sending on the network device side in the method embodiments.
  • the communication device 600 is used to perform the actions performed by the terminal device in the embodiment shown in FIG. 4 above.
  • the processing unit 620 is configured to obtain the first sequence; the processing unit 620 is further configured to generate a first signal according to the first sequence; the transceiver unit 610 is configured to: send the first signal to the network device ; Wherein, the first sequence is determined by the first base sequence, and the first group identifier u of the first base sequence is determined according to the identifier n ID of the first sequence and the time domain position where the first signal is located.
  • the time domain position of includes: n f , And l, where n f represents the system frame number, Represents the time slot number in the system frame, l represents the position of the symbol sending the first signal in the current time slot, the first group identifier u belongs to the first group identifier set, and the first group identifier set includes X group identifiers, X Is an integer greater than 1.
  • the first group identifier u satisfies the following formula:
  • Z and K are both integers greater than or equal to 1; c(i) is a pseudo-random sequence, Means rounding down, Represents the number of symbols in a time slot; mod represents the remainder operation.
  • the initial seed of the pseudo-random sequence c(i) is
  • the processing unit 620 is configured to obtain the first sequence; the processing unit 620 is further configured to generate a first signal according to the first sequence; the transceiver unit 610 is configured to: send the first sequence to the network device Signal; where the first sequence is determined by the first base sequence, and the first group identifier u of the first base sequence is determined according to the product of the first part f 1 and the second part f 2 , and the first part f 1 and the first part f 1 The time domain position of the signal is related, the second part f 2 is related to the first sequence of identification n ID , the first group of identification u belongs to the first group of identification set, the first group of identification set includes X group identifications, X is greater than An integer of 1.
  • the transceiver unit 610 is further configured to: receive instruction information from the network device, where the instruction information is used to indicate the identifier n ID .
  • the first group identifier u of the first base sequence is determined according to the product of the first part f 1 and the second part f 2 , and specifically includes that u satisfies the following formula:
  • the first part f 1 is related to the time domain location where the first signal is located, and specifically includes: the first part f 1 is related to the time domain location, the identification n ID , and X.
  • the first part f 1 is related to: time domain position, identification n ID , and X, and includes:
  • the time domain location where the first signal is located includes: And l, where, Represents the time slot number in the system frame, and l represents the position of the symbol sending the first signal in the current time slot.
  • the first part f 1 is related to the time domain position where the first signal is located, and specifically includes that the first part f 1 satisfies the following formula:
  • Z is an integer greater than 1 or equal to 1;
  • c(i) is a pseudo-random sequence, and the initial seed of c(i) is Means round down, Represents the number of symbols in a time slot; mod represents the remainder operation.
  • the time domain position where the first signal is located includes: n f , And l, where n f represents the system frame number, Represents the time slot number in the system frame, and l represents the position of the symbol sending the first signal in the current time slot.
  • the first part f 1 is related to the time domain position where the first signal is located, including that the first part f 1 satisfies the following formula:
  • Z and K are both integers greater than or equal to 1; c(i) is a pseudo-random sequence, and the initial seed of c(i) is Means rounding down, Represents the number of symbols in a time slot; mod represents the remainder operation.
  • the second part f 2 is related to the identification n ID of the first sequence, and specifically includes: the second part f 2 is related to the identification n ID and X.
  • the second part f 2 is related to the identification n ID and X, and specifically includes: the second part f 2 is related to n ID mod X, where mod represents a remainder operation.
  • the second part f 2 is related to n ID mod X, and specifically includes that the second part f 2 satisfies the following formula:
  • the communication device 600 may implement the steps or processes performed by the terminal device in the method 400 and the method 500 according to the embodiments of the present application.
  • the communication device 600 may include methods for executing the method 400 in FIG. 4 and the method 500 in FIG.
  • the unit of the method performed by the terminal device is used to implement the corresponding processes of the method 400 in FIG. 4 and the method 500 in FIG. 5, respectively.
  • the transceiving unit 610 can be used to execute step 420 in the method 400
  • the processing unit 620 can be used to execute step 410 in the method 400.
  • the transceiving unit 610 can be used to execute step 510 in the method 500
  • the processing unit 620 can be used to execute step 520 in the method 500.
  • the communication device 600 is used to perform the actions performed by the network device in the embodiment shown in FIG. 4 above.
  • the transceiver unit 610 is configured to receive the first signal from the terminal device; the processing unit 620 is configured to determine the first sequence, and process the first signal according to the first sequence; wherein, the first sequence It is determined by the first base sequence.
  • the first group identifier u of the first base sequence is determined based on the identifier n ID of the first sequence and the time domain position where the first signal is located.
  • the time domain position where the first signal is located includes: n f , And l, where n f represents the system frame number, Represents the time slot number in the system frame, l represents the position of the symbol sending the first signal in the current time slot, the first group identifier u belongs to the first group identifier set, and the first group identifier set includes X group identifiers, X Is an integer greater than 1.
  • the first group identifier u satisfies the following formula:
  • Z and K are both integers greater than or equal to 1; c(i) is a pseudo-random sequence, Means rounding down, Represents the number of symbols in a time slot; mod represents the remainder operation.
  • the initial seed of the pseudo-random sequence c(i) is
  • the transceiver unit 610 is configured to receive the first signal from the terminal device; the processing unit 620 is configured to determine the first sequence, and process the first signal according to the first sequence; The sequence is determined by the first base sequence.
  • the first group identifier u of the first base sequence is determined based on the product of the first part f 1 and the second part f 2 , and the time domain position where the first part f 1 and the first signal are located Related, the second part f 2 is related to the identifier n ID of the first sequence.
  • the first group identifier u belongs to the first group identifier set.
  • the first group identifier set includes X group identifiers, and X is an integer greater than 1.
  • the transceiver unit 610 is further configured to send instruction information to the terminal device, where the instruction information is used to indicate the identifier n ID .
  • the first group identifier u of the first base sequence is determined according to the product of the first part f 1 and the second part f 2 , and specifically includes that u satisfies the following formula:
  • the first part f 1 is related to the time domain location where the first signal is located, and specifically includes: the first part f 1 is related to the time domain location, the identification n ID , and X.
  • the first part f 1 is related to: time domain position, identification n ID , and X, and includes:
  • the time domain location where the first signal is located includes: And l, where, Represents the time slot number in the system frame, and l represents the position of the symbol sending the first signal in the current time slot.
  • the first part f 1 is related to the time domain position where the first signal is located, and specifically includes that the first part f 1 satisfies the following formula:
  • Z is an integer greater than 1 or equal to 1;
  • c(i) is a pseudo-random sequence, and the initial seed of c(i) is Means round down, Represents the number of symbols in a time slot; mod represents the remainder operation.
  • the time domain position where the first signal is located includes: n f , And l, where n f represents the system frame number, Represents the time slot number in the system frame, and l represents the position of the symbol sending the first signal in the current time slot.
  • the first part f 1 is related to the time domain position where the first signal is located, including that the first part f 1 satisfies the following formula:
  • Z and K are both integers greater than or equal to 1; c(i) is a pseudo-random sequence, and the initial seed of c(i) is Means rounding down, Represents the number of symbols in a time slot; mod represents the remainder operation.
  • the second part f 2 is related to the identification n ID of the first sequence, and specifically includes: the second part f 2 is related to the identification n ID and X.
  • the second part f 2 is related to the identification n ID and X, and specifically includes: the second part f 2 is related to n ID mod X, where mod represents a remainder operation.
  • the second part f 2 is related to n ID mod X, and specifically includes that the second part f 2 satisfies the following formula:
  • the communication device 600 may implement the steps or processes executed by the network device in the method 400 and the method 500 according to the embodiments of the present application.
  • the communication device 600 may include methods for executing the method 400 in FIG. 4 and the method 500 in FIG. 5
  • the unit of the method performed by the network device.
  • each unit in the communication device 600 and other operations and/or functions described above are used to implement the corresponding processes of the method 400 in FIG. 4 and the method 500 in FIG. 5, respectively.
  • the transceiver unit 610 may be used to execute step 420 in the method 400.
  • the transceiving unit 610 may be used to execute step 510 in the method 500.
  • the processing unit 620 in the above embodiment may be implemented by at least one processor or processor-related circuit.
  • the transceiving unit 610 may be implemented by a transceiver or a transceiver-related circuit.
  • the transceiving unit 610 may also be referred to as a communication unit or a communication interface.
  • the storage unit may be realized by at least one memory.
  • an embodiment of the present application also provides a communication device 700.
  • the communication device 700 includes a processor 710, which is coupled to a memory 720, the memory 720 is used to store computer programs or instructions and/or data, and the processor 710 is used to execute computer programs or instructions and/or data stored in the memory 720.
  • the method in the above method embodiment is caused to be executed.
  • the communication device 700 includes one or more processors 710.
  • the communication device 700 may further include a memory 720.
  • the memory 720 included in the communication device 700 may be one or more.
  • the memory 720 may be integrated with the processor 710 or provided separately.
  • the communication device 700 may further include a transceiver 730, and the transceiver 730 is used for receiving and/or transmitting signals.
  • the processor 710 is configured to control the transceiver 730 to receive and/or send signals.
  • the communication device 700 is used to implement the operations performed by the terminal device in the above method embodiments.
  • the processor 710 is used to implement the processing-related operations performed by the terminal device in the above method embodiment
  • the transceiver 730 is used to implement the transceiving-related operations performed by the terminal device in the above method embodiment.
  • the communication device 700 is used to implement the operations performed by the network device in the above method embodiments.
  • the processor 710 is used to implement the processing-related operations performed by the network device in the above method embodiment
  • the transceiver 730 is used to implement the transceiving-related operations performed by the network device in the above method embodiment.
  • the embodiment of the present application also provides a communication device 800, and the communication device 800 may be a terminal device or a chip.
  • the communication device 800 may be used to perform operations performed by the terminal device in the foregoing method embodiments.
  • FIG. 8 shows a simplified schematic diagram of the structure of the terminal device.
  • 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 signals and radio frequency signals and the processing of radio frequency signals.
  • 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. 8 only one memory and processor are shown in FIG. 8. 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 810 and a processing unit 820.
  • the transceiver unit 810 may also be referred to as a transceiver, a transceiver, a transceiver, or the like.
  • the processing unit 820 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 810 can be regarded as the receiving unit, and the device for implementing the sending function in the transceiving unit 810 can be regarded as the sending unit, that is, the transceiving unit 810 includes a receiving unit and a sending unit.
  • the transceiver unit may sometimes be referred to as 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 820 is configured to perform processing actions on the terminal device side in FIG. 4.
  • the processing unit 820 is used to perform the processing steps in step 410 in FIG. 4; the transceiving unit 810 is used to perform the transceiving operations in step 420 in FIG.
  • the processing unit 820 is configured to perform the processing steps in step 520 in FIG. 5; the transceiving unit 810 is configured to perform the transceiver operations in step 510 in FIG. 5.
  • FIG. 8 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. 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 may be a processor, microprocessor, or integrated circuit integrated on the chip.
  • the embodiment of the present application also provides a communication device 900, and the communication device 900 may be a network device or a chip.
  • the communication device 900 can be used to perform operations performed by a network device in the foregoing method embodiments.
  • FIG. 9 shows a simplified schematic diagram of the base station structure.
  • the base station includes part 910 and part 920.
  • the 910 part is mainly used for the transmission and reception of radio frequency signals and the conversion between radio frequency signals and baseband signals; the 920 part is mainly used for baseband processing and control of the base station.
  • the part 910 can generally be referred to as a transceiver unit, transceiver, transceiver circuit, or transceiver.
  • the part 920 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 910 may also be called a transceiver or a transceiver, etc., which includes an antenna and a radio frequency circuit, and the radio frequency circuit is mainly used for radio frequency processing.
  • the device for implementing the receiving function in part 910 can be regarded as the receiving unit, and the device for implementing the sending function as the sending unit, that is, the part 910 includes the receiving unit and the sending unit.
  • the receiving unit may also be called a receiver, a receiver, or a receiving circuit
  • the sending unit may be called a transmitter, a transmitter, or a transmitting circuit, etc.
  • Part 920 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.
  • the transceiving unit of part 910 is used to perform the steps related to transceiving and receiving performed by the network device in the embodiment shown in FIG. 4; the part 920 is used to perform the steps performed by the network device in the embodiment shown in FIG. 4 The processing related steps.
  • the transceiving unit of part 910 is used to perform the steps related to transceiving performed by the network device in the embodiment shown in FIG. 5; Steps related to the processing performed.
  • FIG. 9 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. 9.
  • the chip When the communication device 900 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.
  • An embodiment of the present application also provides a computer-readable storage medium on which is stored computer instructions for implementing the method executed by the terminal device or the method executed by the network device in the foregoing method embodiments.
  • the computer when the computer program is executed by a computer, the computer can implement the method executed by the terminal device in the foregoing method embodiments or the method executed by the network device.
  • the embodiments of the present application also provide a computer program product containing instructions, which when executed by a computer, cause the computer to implement the method executed by the terminal device in the foregoing method embodiments or the method executed by the network device.
  • An embodiment of the present application also provides a communication system, which includes the network device and the terminal device in the above embodiment.
  • the terminal device or the network device may include 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 may include hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system at the operating system layer can be any one or more computer operating systems that implement business processing through processes, such as Linux operating systems, Unix operating systems, Android operating systems, iOS operating systems, or windows operating systems.
  • the application layer can include applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiment of this application does not specifically limit the specific structure of the execution subject of the method provided in the embodiment of this application, as long as it can run a program that records the code of the method provided in the embodiment of this application, according to the method provided in the embodiment of this 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.
  • the computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more available media.
  • Usable media can include, but are not limited to: magnetic media or magnetic storage devices (for example, floppy disks, hard disks (such as mobile hard disks), magnetic tapes), optical media (for example, optical disks, compact discs).
  • CD compact disc
  • DVD digital versatile disc
  • smart cards and flash memory devices for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.)
  • semiconductor media such as solid state disks (SSD), U disks, read-only memory (ROM), random access memory (RAM), etc.
  • the various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • the term "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 embodiments of this application may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (digital signal processors, DSP), and application-specific integrated circuits (central processing unit, CPU).
  • CPU central processing unit
  • ASIC 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 (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 (RAM).
  • RAM can be used as an external cache.
  • RAM may include the following various forms: static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM) , Double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) and Direct RAM Bus RAM (DR RAM).
  • static random access memory static random access memory
  • dynamic RAM dynamic random access memory
  • DRAM synchronous dynamic random access memory
  • SDRAM synchronous DRAM
  • Double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced SDRAM enhanced synchronous dynamic random access memory
  • SLDRAM Direct RAM Bus 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
  • memories described herein are intended to include, but are not limited to, these and any other suitable types of memories.
  • the disclosed device and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the above-mentioned 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 may be Integrate 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 above as separate components may or may not be physically separate, 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 can be selected according to actual needs to implement the solution provided in this application.
  • the functional units in the various embodiments of the present application may be integrated into one unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the computer can be a personal computer, a server, or a network device.
  • Computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • computer instructions may be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) to transmit to another website site, computer, server or data center.
  • a cable such as Coaxial cable, optical fiber, digital subscriber line (DSL)
  • wireless such as infrared, wireless, microwave, etc.

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Abstract

La présente demande propose un procédé et un appareil de communication. Le procédé consiste : à acquérir, par un dispositif terminal, une séquence de signaux, un identifiant de groupe (u), utilisé pour déterminer une séquence de base de la séquence de signaux, pouvant être déterminé selon le produit de première f1 et seconde f2 parties, la première partie f1 étant liée à un emplacement de domaine temporel d'un signal et la seconde partie f2 à un identifiant nID de la séquence de signaux ; et à générer, par le dispositif terminal, le signal selon la séquence de signaux et à envoyer le signal généré à un dispositif de réseau. Selon la présente demande, un identifiant de groupe d'une séquence de base peut subir un traitement non linéaire ; il peut par exemple se déterminer par le produit de deux parties. Par rapport aux opérations d'addition, l'opération proposée par la présente demande permet d'obtenir une meilleure randomisation tenant compte de l'interférence intra et inter-cellulaire, ce qui permet d'améliorer la précision d'estimation de canaux par filtrage de domaines temporels. L'opération est également plus simple et plus facile à mettre en œuvre que les opérations d'addition.
PCT/CN2020/122204 2020-04-18 2020-10-20 Procédé et appareil de communication WO2021208390A1 (fr)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130034064A1 (en) * 2011-08-05 2013-02-07 Samsung Electronics Co., Ltd. Apparatus and method for ue-specific demodulation reference signal scrambling
US20170099174A1 (en) * 2014-03-19 2017-04-06 Lg Electronics Inc. Method of transmitting and receiving device-to-device ue signal in wireless communication system and apparatus therefor
WO2017099834A1 (fr) * 2015-12-07 2017-06-15 Intel IP Corporation Génération de signal de référence d'informations d'état de canal avec des symboles de multiplexage par répartition orthogonale de la fréquence réduits
CN107852318A (zh) * 2015-08-12 2018-03-27 Lg电子株式会社 用于执行上行链路传输的方法和用户设备
WO2019055421A1 (fr) * 2017-09-15 2019-03-21 Qualcomm Incorporated Techniques et appareils d'émission de signal d'activation
US20200028638A1 (en) * 2018-07-20 2020-01-23 Qualcomm Incorporated Srs resource configuration enhancements
WO2020029120A1 (fr) * 2018-08-08 2020-02-13 Qualcomm Incorporated Saut de groupe de séquence dmrs pour émission à une seule tonalité

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2011204052B2 (en) * 2010-01-07 2014-05-08 Lg Electronics Inc. Method and apparatus for generating a reference signal sequence in a wireless communication system
CN107786314B (zh) * 2016-08-27 2020-05-26 上海朗帛通信技术有限公司 一种无线通信中的方法和装置
CN109802752B (zh) * 2017-11-17 2022-01-14 华为技术有限公司 信息传输的方法和通信设备
CN110830212B (zh) * 2018-08-10 2021-08-20 华为技术有限公司 一种参考信号发送、接收方法及装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20130034064A1 (en) * 2011-08-05 2013-02-07 Samsung Electronics Co., Ltd. Apparatus and method for ue-specific demodulation reference signal scrambling
US20170099174A1 (en) * 2014-03-19 2017-04-06 Lg Electronics Inc. Method of transmitting and receiving device-to-device ue signal in wireless communication system and apparatus therefor
CN107852318A (zh) * 2015-08-12 2018-03-27 Lg电子株式会社 用于执行上行链路传输的方法和用户设备
WO2017099834A1 (fr) * 2015-12-07 2017-06-15 Intel IP Corporation Génération de signal de référence d'informations d'état de canal avec des symboles de multiplexage par répartition orthogonale de la fréquence réduits
WO2019055421A1 (fr) * 2017-09-15 2019-03-21 Qualcomm Incorporated Techniques et appareils d'émission de signal d'activation
US20200028638A1 (en) * 2018-07-20 2020-01-23 Qualcomm Incorporated Srs resource configuration enhancements
WO2020029120A1 (fr) * 2018-08-08 2020-02-13 Qualcomm Incorporated Saut de groupe de séquence dmrs pour émission à une seule tonalité

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
QUALCOMM INCORPORATED: "SRS sequence with cell ID or virtual cell ID", 3GPP DRAFT; R1-1813053_SRS VIRTUAL CELL ID, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Spokane, USA; 20181112 - 20181116, 3 November 2018 (2018-11-03), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051479319 *

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