WO2018219250A1 - Procédé et dispositif de génération de séquence de code d'embrouillage - Google Patents

Procédé et dispositif de génération de séquence de code d'embrouillage Download PDF

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Publication number
WO2018219250A1
WO2018219250A1 PCT/CN2018/088632 CN2018088632W WO2018219250A1 WO 2018219250 A1 WO2018219250 A1 WO 2018219250A1 CN 2018088632 W CN2018088632 W CN 2018088632W WO 2018219250 A1 WO2018219250 A1 WO 2018219250A1
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Prior art keywords
parameter
trp
port
scrambling code
dmrs
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PCT/CN2018/088632
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English (en)
Chinese (zh)
Inventor
陈大庚
葛士斌
毕晓艳
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华为技术有限公司
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Priority claimed from CN201710686835.0A external-priority patent/CN108988978B/zh
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP18808899.1A priority Critical patent/EP3624371B1/fr
Publication of WO2018219250A1 publication Critical patent/WO2018219250A1/fr
Priority to US16/698,466 priority patent/US11101909B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04K—SECRET COMMUNICATION; JAMMING OF COMMUNICATION
    • H04K3/00—Jamming of communication; Counter-measures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and an apparatus for generating a scrambling code sequence.
  • the transmitting end (such as a base station) often uses a scrambling technique to scramble the transmitted data.
  • the receiving end such as a user equipment (User Equipment)
  • receives the scrambled data the descrambled data is descrambled. , get the raw data.
  • the scrambling technology can distinguish data from different cells by different scrambling methods, randomize inter-cell interference, and suppress inter-cell interference, so that the UE can obtain data from the cell better from the received data. .
  • the transmitting end uses the scrambling technique to scramble the transmitted data, it is necessary to generate a scrambling code sequence, and then the transmitting end obtains the scrambled data according to the scrambling code sequence and the sequence corresponding to the data to be transmitted.
  • the receiving end receives the scrambled data, and descrambles the scrambled data by using the same scrambling code sequence to obtain original data.
  • LTE Long Term Evolution
  • LTE-A Long Term Evolution-Advanced
  • the initial value of the scrambling code generated by the base station is c init .
  • the n RNTI is an identifier of the UE. When there is only one code, q is 0. When two coders are scheduled at the same time, q is 0 or 1.
  • n s is the slot number. Indicates the subframe number ( To round down the symbol), Is the cell identification code.
  • a 5G NR cell usually includes multiple Transmitter and Receiver Point (TRP) and multiple UEs. Each UE accepts services provided by multiple TRPs. All TRPs are independent of each other and share the cell identity of the cell.
  • TRP Transmitter and Receiver Point
  • NC-JT Non-Coherent-Joint Transmission
  • NC-JT Non-Coherent-Joint Transmission
  • the cell includes 2 TRPs: a first TRP and a second TRP.
  • the n RNTI corresponding to the first TRP is the same as the n RNTI corresponding to the second TRP, and the q corresponding to the first TRP and the q corresponding to the second TRP are both 0 (because each TRP does not know the existence of the remaining TRP), the first TRP corresponding to the second TRP n s n s corresponding to the same (because all TRP simultaneously transmit data to the UE), a first corresponding TRP Corresponding to the second TRP Same, n RNTI , q, n s and All are configuration parameters corresponding to the data to be transmitted set in advance.
  • the initial value of the scrambling code generated by the first TRP is exactly the same as the initial value of the scrambling code generated by the second TRP
  • the scrambling code sequence determined by the first TRP is exactly the same as the scrambling code sequence determined by the second TRP, and any TRP.
  • the interference caused to another TRP is a non-randomized interference.
  • the first TRP nor the second TRP can perform the purpose of scrambling in the 5G NR cell (the purpose of the scrambling is to randomize the interference caused by any TRP to another TRP).
  • the UE cannot receive from the UE.
  • the data sent by the first TRP or the second TRP is better obtained in the data, and the system performance is poor.
  • the embodiment of the invention provides a method and a device for generating a scrambling code sequence.
  • the technical solution is as follows:
  • a method for generating a scrambling code sequence comprising:
  • the scrambling code sequence is determined according to the configuration parameter of the TRP of the transmitting and receiving point, and the configuration parameters corresponding to different TRPs are different; the data is scrambled or descrambled by using the scrambling code sequence.
  • different TRPs have different configuration parameters, different TRPs obtain different scrambling sequences, and any TRP interferes with another TRP as randomized interference, and the user equipment can receive data from the received data.
  • the data sent by the corresponding TRP is better obtained, and the system performance is improved.
  • the TRP can be the sender of the data or the receiver of the data.
  • the TRP is the transmitting end of the data
  • the user equipment is the receiving end of the data
  • the user equipment is the transmitting end of the data.
  • determining the scrambling sequence according to the configuration parameter of the TRP of the sending and receiving point including:
  • the configuration parameters corresponding to different TRPs are different, the initial values of the scrambling codes generated by different TRPs are different, and the scrambling code sequences obtained by different TRPs are different, and the interference caused by any TRP to another TRP is randomized. Interference, the user equipment can better obtain the data sent by the corresponding TRP from the received data, thereby improving system performance.
  • the configuration parameter includes a target parameter, and different target parameters corresponding to different TRPs are different.
  • the configuration parameter may further include: at least one of an identifier of the user equipment, a slot number corresponding to the resource where the data is located, a cell identifier, and a parameter indicating a codeword sequence number.
  • the target parameter includes at least one of an RS related parameter, a beam parameter, a first identifier that is allocated by the TRP, a second identifier that is pre-allocated by the TRP, a synchronization signal related parameter, a QCL indication parameter, and a PDCCH related parameter.
  • the RS related parameter may be used to indicate configuration information of the RS.
  • the RS related parameter may include at least one of a port parameter of the RS and a resource parameter of the RS.
  • the port parameter of the RS may be used to indicate at least one of a port number of the RS and a port group number of the RS.
  • the port group includes at least one port, and the port number may be a port identification code or a port index number; the port group The number can be a port group identifier or a port group index number.
  • the resource parameters of the RS can be used to indicate the location of the RS in the time domain and/or the frequency domain.
  • the location of the RS in the time domain is the identifier of the symbol occupied by the RS
  • the location of the RS in the frequency domain is the identifier of the subcarrier occupied by the RS.
  • the RS can be DMRS, CSI-RS, PT-RS, TRS or SRS.
  • the DMRS may be an uplink DMRS or a downlink DMRS, and the uplink DMRS may be a data channel DMRS or a control channel DMRS; the downlink DMRS may be a data channel DMRS or a control channel DMRS.
  • the port number of the RS may be determined according to a preset rule, based on a port number of at least one port corresponding to the codeword, and each port has a port number. For example, the smallest or smallest port number of at least one port may be selected. The port number.
  • the port group number of the RS may also be determined according to a preset rule, based on the port group number of at least one port group corresponding to the codeword. For example, the smallest or largest port group number may be selected from the port group number of at least one port group. .
  • the port parameters of the RS may also include parameters related to the port number of the RS or the port group number of the RS, such as the identity of the layer used to map the codeword.
  • a beam parameter indicating a beam for transmitting data such as an identification code of a beam that can be used to indicate transmission of data.
  • the beam parameters may also include parameters related to the identification code of the beam, such as time slot parameters, band parameters, and the like.
  • the first identification code is used to generate an initial value of the scrambling code.
  • the second identification code is used to indicate the TRP.
  • the synchronization signal related parameter may include at least one of a preset parameter for determining a synchronization signal sequence, a resource parameter of the synchronization signal, and a port parameter of the synchronization signal.
  • the preset parameters are a root sequence parameter, a cyclic shift parameter, or a scrambling parameter.
  • the resource parameter of the synchronization signal may be used to indicate the transmission order number of the SS block of the synchronization signal or the transmission order number of the uplink RACH occasion.
  • the port parameter of the synchronization signal may be used to indicate at least one of a port number of the synchronization signal and a port group number of the synchronization signal, the port group including at least one port.
  • the port number can be a port ID or a port index.
  • the port group ID can be a port group ID or a port group index.
  • the synchronization signal is a PSS, SSS or PRACH signal.
  • the QCL indication parameters of different TRPs are different.
  • Each TRP corresponds to at least one QCL set, and each QCL set in the at least one QCL set includes an RS having a quasi-co-location relationship, a SS block, and the like.
  • the QCL indication parameter can be used to indicate at least one of a set identification code of a QCL set and a set index number of a QCL set.
  • the PDCCH related parameter may be used to indicate configuration information of the PDCCH.
  • the PDCCH related parameter may include a resource parameter of the PDCCH.
  • the resource parameter of the PDCCH is used to indicate a location of the PDCCH in the time domain and/or the frequency domain.
  • the location of the PDCCH in the time domain is the identifier of the symbol occupied by the PDCCH, and the location of the PDCCH in the frequency domain or the identifier of the subcarrier occupied by the PDCCH.
  • the target parameter may include an RS related parameter, a beam parameter, a first identification code to which the TRP is allocated, a second identification code pre-allocated by the TRP, a synchronization signal related parameter, a QCL indication parameter, and a PDCCH related parameter. At least one of them. Because the configuration parameters of different TRPs are different, the initial values of the scrambling codes generated by different TRPs according to the configuration parameters are different, and the scrambling code sequences determined based on the initial values of the scrambling codes are also different.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • the UEid is an identifier of the user equipment, where n s is the slot number corresponding to the resource where the data is located, and q is a parameter used to indicate the codeword sequence number. Is the cell identification code. Indicates the subframe number ( Round up the symbol).
  • the target parameter further includes: a group identification code of the TRP group to which the TRP belongs, and the TRP group includes at least one TRP.
  • a scrambling code sequence generating apparatus comprising at least one module, the at least one module for implementing the scrambling code sequence generating method according to the first aspect.
  • a scrambling code sequence generating apparatus comprising at least one processor and an interface.
  • the processor and interface are connected by a bus.
  • the processor is used to:
  • the scrambling code sequence is determined according to the configuration parameter of the TRP of the transmitting and receiving point, and the configuration parameters corresponding to different TRPs are different; and the data is scrambled or descrambled by using the scrambling code sequence.
  • the processor is specifically configured to: generate an initial value of the scrambling code according to the configuration parameter; and determine a scrambling code sequence based on the initial value of the scrambling code.
  • the configuration parameter includes a target parameter, and different target parameters corresponding to different TRPs are different.
  • the configuration parameter may further include: at least one of an identifier of the user equipment, a slot number corresponding to the resource where the data is located, a cell identifier, and a parameter indicating a codeword sequence number.
  • the target parameter includes at least one of an RS related parameter, a beam parameter, a first identifier that is allocated by the TRP, a second identifier that is pre-allocated by the TRP, a synchronization signal related parameter, a QCL indication parameter, and a PDCCH related parameter.
  • the RS related parameter may be used to indicate configuration information of the RS.
  • the RS related parameter may include at least one of a port parameter of the RS and a resource parameter of the RS.
  • the port parameter of the RS may be used to indicate at least one of a port number of the RS and a port group number of the RS, and the port group includes at least one port.
  • the resource parameters of the RS can be used to indicate the location of the RS in the time domain and/or the frequency domain.
  • the RS can be DMRS, CSI-RS, PT-RS, TRS or SRS.
  • the DMRS may be an uplink DMRS or a downlink DMRS, and the uplink DMRS may be a data channel DMRS or a control channel DMRS; the downlink DMRS may be a data channel DMRS or a control channel DMRS.
  • the port parameters of the RS may also include parameters related to the port number of the RS or the port group number of the RS, such as the identity of the layer used to map the codeword.
  • a beam parameter indicating a beam for transmitting data such as an identification code of a beam that can be used to indicate transmission of data.
  • the first identification code is used to generate an initial value of the scrambling code.
  • the second identification code is used to indicate the TRP.
  • the synchronization signal related parameter may include at least one of a preset parameter for determining a synchronization signal sequence, a resource parameter of the synchronization signal, and a port parameter of the synchronization signal.
  • the preset parameters are a root sequence parameter, a cyclic shift parameter, or a scrambling parameter.
  • the resource parameter of the synchronization signal may be used to indicate the transmission order number of the SS block of the synchronization signal or the transmission order number of the uplink RACH occasion.
  • the port parameter of the synchronization signal may be used to indicate at least one of a port number of the synchronization signal and a port group number of the synchronization signal, the port group including at least one port.
  • the synchronization signal is a PSS, SSS or PRACH signal.
  • the QCL indication parameters of different TRPs are different.
  • the QCL indication parameter may be used to indicate at least one of a set identification code of a QCL set and a set index number of a QCL set.
  • the PDCCH related parameter may be used to indicate configuration information of the PDCCH.
  • the PDCCH related parameter may include a resource parameter of the PDCCH.
  • the resource parameter of the PDCCH is used to indicate a location of the PDCCH in the time domain and/or the frequency domain.
  • different TRPs have different identification codes assigned to user equipments.
  • the target parameter further includes: a group identification code of the TRP group to which the TRP belongs, and the TRP group includes at least one TRP.
  • the processor may be a chip.
  • the processor may be a logic circuit, an integrated circuit, or the like; the processor may be a general-purpose processor, which is implemented by reading software code stored in the memory.
  • the memory can be integrated in the processor, can be located outside of the processor, and can exist independently.
  • the scrambling code sequence generating device further includes an antenna.
  • the scrambling code sequence generating device further includes other functional components such as a battery module, a wired/wireless charging structure, and the like.
  • the antenna is used for transmitting and receiving wireless signals, and the antenna can be matched with the interface to implement signal transmission and reception of 5G technology.
  • a computer readable storage medium in a fourth aspect, storing instructions for causing a computer to perform the scrambling code provided by the first aspect when the computer readable storage medium is run on a computer Sequence generation method.
  • a computer program product comprising instructions for causing a computer to perform the scrambling code sequence generation method provided by the first aspect above is provided when the computer program product is run on a computer.
  • the scrambling code sequence can be determined according to the configuration parameters of the TRP, and the data is scrambled or descrambled by the scrambling code sequence.
  • the configuration parameters corresponding to different TRPs are different. Compared with the related technology, the different TRPs obtain different scrambling sequences, and the interference caused by any TRP to another TRP is randomized interference, which improves system performance.
  • FIG. 1 is a schematic diagram of an implementation environment involved in various embodiments of the present application.
  • 2-1 is a flowchart of a method for generating a scrambling code sequence according to an embodiment of the present invention
  • 2-2 is a schematic diagram of six REs corresponding to an RS according to an embodiment of the present invention.
  • 2-3 is a schematic diagram of an SS block sending sequence according to an embodiment of the present invention.
  • 3-1 is a schematic structural diagram of a scrambling code sequence generating apparatus according to an embodiment of the present invention.
  • FIG. 3-1 is a schematic structural diagram of a determining module in the embodiment shown in FIG. 3-1;
  • FIG. 4 is a schematic structural diagram of still another scrambling code sequence generating apparatus according to an embodiment of the present invention.
  • FIG. 1 shows a schematic diagram of an implementation environment involved in various embodiments of the present application.
  • the implementation environment can be a 5G NR cell.
  • a 5G NR cell usually includes multiple TRPs and multiple user equipments.
  • a TRP such as a base station
  • a user equipment is a receiving end of data.
  • Each user equipment accepts services provided by multiple TRPs.
  • the TRP determines the scrambling sequence based on the configuration parameters. Thereafter, the data to be transmitted is scrambled using the scrambling code sequence to obtain scrambled data.
  • the TRP then sends the scrambled data to the user equipment.
  • the user equipment determines the scrambling code sequence according to the configuration parameter, and then uses the scrambling code sequence to descramble the scrambled data to obtain original data.
  • the multiple TRPs in FIG. 1 include a first TRP001 and a second TRP002, and the first TRP001 provides services for three user equipments, which are the user equipment 10, the user equipment 20, and the user equipment 30, respectively.
  • the second TRP002 serves four user equipments, which are user equipment 30, user equipment 40, user equipment 50, and user equipment 60, respectively.
  • User equipment 30 accepts the services provided by the first TRP001 and the second TRP002.
  • the TRP may be the sender of the data or the receiver of the data. This application does not limit this.
  • the user equipment may be a UE in a general sense.
  • the user equipment may also be a mobile station, an access terminal, a subscriber unit, a subscriber station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, a wireless communication device, a user agent, or a user device.
  • the user equipment can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), and a wireless communication function.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • PLMN Public Land Mobile Network
  • the user equipment may also include other devices capable of communicating with an access network device (e.g., a base station), such as a relay (English: Relay).
  • an access network device e.g., a base station
  • a relay English: Relay
  • 2-1 is a flowchart of a method for generating a scrambling code sequence according to an embodiment of the present invention.
  • the method may be applied to the implementation environment shown in Figure 1.
  • the TRP is used as the data sending end
  • the user equipment is The receiving end of the data is described as an example.
  • the method can include:
  • Step 201 The TRP acquires data to be transmitted.
  • Step 202 The TRP obtains configuration parameters, and configuration parameters corresponding to different TRPs are different.
  • Different TRPs in the embodiments of the present invention refer to different TRPs serving the same user equipment. Since the configuration parameters corresponding to different TRPs are different, the scrambling code sequences determined by different TRPs according to the configuration parameters are also different. For example, the configuration parameters corresponding to the first TRP001 and the second TRP002 in FIG. 1 are different.
  • Step 203 The TRP generates an initial value of the scrambling code according to the configuration parameter.
  • the TRP may first generate an initial value of the scrambling code according to the configuration parameter, and then determine the scrambling code sequence based on the initial value of the scrambling code.
  • the configuration parameter includes a target parameter, and different target parameters corresponding to different TRPs are different.
  • the target parameter may include a reference signal (Reference Signal, RS) related parameter, a beam parameter, a first identification code to which the TRP is allocated, a second identification code pre-allocated by the TRP, a synchronization signal related parameter, and a quasi co-location (Quasi -Co-Location, QCL) indicates at least one of a parameter and a physical downlink control channel (PDCCH) related parameter.
  • RS Reference Signal
  • the RS related parameter in the target parameter may be used to indicate configuration information of the RS.
  • the RS related parameter may include at least one of a port parameter of the RS and a resource parameter of the RS.
  • the port parameter of the RS may be used to indicate at least one of a port number of the RS and a port group number of the RS, and the port group includes at least one port.
  • the port number can be a port ID or a port index.
  • the port group ID can be a port group ID or a port group index.
  • the resource parameters of the RS can be used to indicate the location of the RS in the time domain and/or the frequency domain.
  • the RS may be a Demodulation Reference Signal (DMRS), a Channel State Information Reference Signal (CSI-RS), a Phase Tracking Reference Signal (PT-RS), or a fine A time-frequency tracking reference signal (TRS) or a sounding reference signal (SRS).
  • DMRS may be an uplink DMRS or a downlink DMRS; the uplink DMRS may be a data channel DMRS or a control channel DMRS, and the downlink DMRS may be a data channel DMRS or a control channel DMRS.
  • the DMRS is used to estimate the transmission channel.
  • a beam parameter in the target parameter is used to indicate a beam that transmits data.
  • the beam parameter can be used to indicate an identification code of a beam that transmits data.
  • the first identification code in the target parameter is used to generate an initial value of the scrambling code.
  • the synchronization signal related parameter in the target parameter may include at least one of a preset parameter for determining a synchronization signal sequence, a resource parameter of the synchronization signal, and a port parameter of the synchronization signal.
  • the preset parameters are a root sequence parameter, a cyclic shift parameter, or a scrambling parameter.
  • the resource parameter of the synchronization signal may be used to indicate a transmission order number of a synchronization signal block of the synchronization signal or a transmission order number of a Random Access Channel occasion.
  • the sync signal block is called an SS block.
  • the random access channel timing is called RACH occasion.
  • the port parameter of the synchronization signal may be used to indicate at least one of a port number of the synchronization signal and a port group number of the synchronization signal, the port group including at least one port.
  • the port number can be a port ID or a port index.
  • the port group ID can be a port group ID or a port group index.
  • the synchronization signal may be a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), or a Physical Random Access Channel (PRACH) signal.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PRACH Physical Random Access Channel
  • Each TRP corresponds to at least one QCL set, and each QCL set in the at least one QCL set includes an RS having a quasi-co-location relationship, a SS block, and the like.
  • the PDCCH related parameter in the target parameter may be used to indicate configuration information of the PDCCH.
  • the PDCCH related parameter includes a resource parameter of the PDCCH, and the resource parameter of the PDCCH may be used to indicate a location of the PDCCH in the time domain and/or the frequency domain.
  • the target parameter may further include a group identification code of the TRP group to which the TRP belongs, and the TRP group includes at least one TRP.
  • the configuration parameter may further comprise: an identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code And at least one of the parameters q for indicating the codeword number. When there is only one code, q is 0, and when 2 codes are scheduled at the same time, q is 0 or 1.
  • the identifiers assigned to the user equipment by different TRPs may be different.
  • the target parameter further includes: a group identification code of the TRP group to which the TRP belongs, and the TRP group includes at least one TRP.
  • the configuration parameters may be in various forms.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter may also take various forms.
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code And a target parameter, the target parameter including a port parameter of the RS, Por RS .
  • the port parameter of the RS may be used to indicate at least one of a port number of the RS and a port group number of the RS, and the port group includes at least one port.
  • the port parameters of the RS corresponding to different TRPs are different.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • the configuration parameter may further include a parameter q for indicating the codeword sequence number, and then the initial value of the scrambling code generated by the TRP according to the configuration parameter c init may be expressed as:
  • the RS may be a DMRS, a CSI-RS, a PT-RS, a TRS, or an SRS.
  • the embodiment of the present invention does not limit the type of the RS.
  • the DMRS may be an uplink DMRS or a downlink DMRS, where the uplink DMRS may be a data channel DMRS or a control channel DMRS, and the downlink DMRS may be a data channel DMRS or a control channel DMRS.
  • the embodiment of the present invention does not limit the type of the DMRS.
  • the port parameter of the DMRS may include a port number of the DMRS, and the port number may be a port identification code or a port index number.
  • the port number of the DMRS is recorded as Port DMRS .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1 such as, M1, m2 and m3 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 p3
  • p1 , p2 and p3 are constant
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • n RNTI is the identification code of the user equipment
  • the port DMRS is the port number of the DMRS
  • n s is the slot number corresponding to the resource where the data is located. Is the cell identification code.
  • one codeword corresponds to at least one DMRS port, and each DMRS port has one port number.
  • one codeword corresponds to at most four DMRS ports.
  • the Port DMRS in the formula (1) may be determined by the TRP (or user equipment) according to a preset rule, based on the port number of the at least one DMRS port corresponding to the codeword. For example, the codeword transmitted by the first TRP001 in FIG. 1 corresponds to three DMRS ports, the port number of the first DMRS port is 1, the port number of the second DMRS port is 2, and the port number of the third DMRS port.
  • the codeword transmitted by the second TRP002 corresponds to two DMRS ports, the port number of the first DMRS port is 4, and the port number of the second DMRS port is 5.
  • the first TRP001 can select the smallest DMRS port number 1 from the three DMRS port numbers, that is, the Port DMRS in the formula (1) is 1.
  • the second TRP002 may select the smallest DMRS port number 4 from the two DMRS port numbers, that is, the Port DMRS in Equation (1) is 4.
  • first TRP001 and the second TRP002 may also select the largest DMRS port number from the corresponding DMRS port numbers, that is, the first TRP001 may select the DMRS port number from the three DMRS port numbers to be 3, and the second TRP002 may The DMRS port number selected from the two DMRS port numbers is 5.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • the port parameter of the DMRS may include a port group number of the DMRS, and the port group number may be a port group identification code or a port group index number.
  • a port group includes at least one port, and different port groups have different identification codes or index numbers. For example, there are 8 ports in total, and 8 ports are divided into 2 groups. The identification code of the first port group is 1, and the identification code of the second port group is 2. Or a total of 8 ports, 8 ports are divided into 2 groups, the index number of the first port group is 0, and the index number of the second port group is 1.
  • the port group identification code of the DMRS is taken as an example for description. In the embodiment of the present invention, the port group identification code of the DMRS is recorded as Port DMRSGroupID .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2 and m3 are all constants.
  • m1 2 p1
  • m2 2 n
  • m3 2 p2
  • p1, n and p2 are constants.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • n RNTI is the identification code of the user equipment
  • the port DMRSGroupID is the port group identification code of the DMRS
  • n s is the slot number corresponding to the resource where the data is located. Is the cell identification code.
  • the Port DMRSGroupID in Equation (2) can be determined by the port group identification code corresponding to the TRP (or User Equipment). For example, the identifier of the port group corresponding to the first TRP001 in FIG. 1 is 1, that is, the Port DMRSGroupID in the formula (2) is 1; the identifier of the port group corresponding to the second TRP002 is 2, that is, The Port DMRSGroupID in Equation (2) is 2.
  • a codeword can correspond to at least one port group.
  • the Port DMRSGroupID in the formula (2) may be determined by the TRP (or the user equipment) according to the preset rule, based on the identification code of the at least one port group corresponding to the codeword.
  • the codeword transmitted by the first TRP001 in FIG. 1 corresponds to two port groups, the identification code of the first port group is 11, and the identification code of the second port group is 12; the codeword corresponding to the second TRP002 is corresponding.
  • the identification code of the first port group is 21, and the identification code of the second port group is 22.
  • the first TRP001 can select the smallest port group identification code 11 from the identification codes of the two port groups, that is, the Port DMRSGroupID in the formula (2) is 11.
  • the second TRP002 may select the smallest port group identification code 21 from the identification codes of the two port groups, that is, the Port DMRSGroupID in the formula (2) is 21.
  • the first TRP001 and the second TRP002 may also select the largest port group identification code from the identification codes of the corresponding port groups, that is, 12 and 22 respectively.
  • the port parameters of the DMRS may also include parameters related to the port number of the DMRS or the port group number of the DMRS, such as the port parameter of the DMRS may include an identifier of a layer for mapping the codeword.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code A parameter q and a target parameter for indicating a codeword sequence number, the target parameter including a port parameter of the RS.
  • q is 0, and when 2 codes are scheduled at the same time, q is 0 or 1.
  • the RS can be DMRS, CSI-RS, PT-RS, TRS or SRS. It is assumed that the RS is a DMRS, and the DMRS may be an uplink DMRS or a downlink DMRS, where the uplink DMRS may be a data channel DMRS or a control channel DMRS, and the downlink DMRS may be a data channel DMRS or a control channel DMRS.
  • the port parameters of the DMRS may include the port number DMRS of the DMRS .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n
  • m4 2 p3
  • p1 , p2 , n and p3 are all constants.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • n RNTI is an identifier of the user equipment
  • q is a parameter for indicating a codeword sequence number
  • Port DMRS is a port number of the DMRS
  • n s is a slot number corresponding to the resource where the data is located, Indicates the subframe number ( To round down the symbol), Is the cell identification code.
  • the port parameters of the DMRS may include the port group identification code Port DMRSGroupID of the DMRS .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n
  • m4 2 p3
  • p1 , p2 , n and p3 are all constants.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • n RNTI is an identifier of the user equipment
  • q is a parameter for indicating a codeword sequence number
  • Port DMRSGroupID is a port group identification code of the DMRS
  • n s is a slot number corresponding to the resource where the data is located. Is the cell identification code.
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code And a target parameter, the target parameter including a port parameter of the RS.
  • the port parameter of the RS can be used to indicate the port number of the RS and the port group identification code of the RS.
  • the RS can be DMRS, CSI-RS, PT-RS, TRS or SRS.
  • the port parameters of the DMRS may include the port number of the DMRS Port DMRS and the port group identification code Port DMRSGroupID of the DMRS .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 n1
  • m3 2 n2
  • m4 2 p2
  • p1 , n1 , n2 and p2 are constants.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • n RNTI is the identifier of the user equipment
  • the port DMRS is the port number of the DMRS
  • the port DMRSGroupID is the port group identification code of the DMRS
  • n s is the slot number corresponding to the resource where the data is located. Is the cell identification code.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can also be expressed as:
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code A parameter q and a target parameter for indicating a codeword sequence number, the target parameter including a port parameter of the RS.
  • the port parameter of the RS can be used to indicate the port number of the RS and the port group identification code of the RS.
  • the RS can be DMRS, CSI-RS, PT-RS, TRS or SRS.
  • the RS is taken as an example for the DMRS.
  • the port parameters of the DMRS may include the port number of the DMRS Port DMRS and the port group identification code Port DMRSGroupID of the DMRS .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, m4 and m5 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n1
  • m4 2 n2
  • m5 2 p3
  • p1 , p2 , n1 , n2 and p3 are all constants.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • n RNTI is the identification code of the user equipment
  • q is the parameter for indicating the codeword sequence number
  • Port DMRS is the port number of the DMRS
  • Port DMRSGroupID is the port group identification code of the DMRS
  • n s is the time slot corresponding to the resource where the data is located. No. Is the cell identification code.
  • the manner of determining the Port DMRS and the Port DMRSGroupID in the formula (6) can refer to the corresponding content in the first implementable manner.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can also be expressed as:
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code A parameter q and a target parameter for indicating a codeword sequence number, the target parameter including a resource parameter Re RS of the RS .
  • the resource parameters of the RS can be used to indicate the location of the RS in the time domain and/or the frequency domain.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n
  • m4 2 p3
  • p1 , p2 , n and p3 are all constants.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • n RNTI as user equipment identification code, q is a parameter for indicating a codeword number, Re RS to the RS resource parameter, n s where the resource data corresponding to the slot number, Is the cell identification code.
  • the location of the RS in the time domain is the identifier of the symbol occupied by the RS
  • the location of the RS in the frequency domain is the identifier of the subcarrier occupied by the RS.
  • z RS is an identification code of a symbol occupied by the RS or an identification code of a subcarrier.
  • the RS may be a DMRS, a CSI-RS, a PT-RS, a TRS, or an SRS.
  • the DMRS can be an uplink DMRS or a downlink DMRS.
  • the uplink DMRS may be a data channel DMRS or a control channel DMRS, and the downlink DMRS may be a data channel DMRS or a control channel DMRS.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can also be expressed as: Re RS1 is the position of the RS in the frequency domain, and Re RS2 is the position of the RS in the time domain.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • Re RS1 is the identification code of the subcarrier occupied by the RS in the frequency domain
  • Re RS2 is the identification code of the symbol occupied by the RS in the time domain.
  • the RS can correspond to multiple resource elements (Resources, REs), and each RE corresponds to a time-frequency resource location (location in the real-time domain and the frequency domain).
  • FIG. 2-2 exemplarily shows a schematic diagram of 6 REs corresponding to the RS, where the time-frequency resource location corresponding to RE0001 is (0, 4), that is, the identification code of the sub-carrier of RE0001 is 0, RE0001
  • the identifier of the symbol is 4, that is, Re RS1 is equal to 0 and Re RS2 is equal to 4.
  • the time-frequency resource location corresponding to RE0001 can be substituted. in.
  • the time-frequency resource location (9, 4) corresponding to RE0006 can also be substituted.
  • Re RS1 is equal to 9 and Re RS2 is equal to 4.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can also be expressed as:
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can also be expressed as:
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code And a target parameter, the target parameter includes a beam parameter, and the beam parameter is used to indicate a beam for transmitting data.
  • the beam parameter may be an identification code (ie, the number of the beam) of the beam transmitting the data.
  • the identification codes of the beams corresponding to different TRPs are different.
  • the identification code of the beam is recorded as ID Beam .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2 and m3 are all constants.
  • m1 2 p1
  • m2 2 n
  • m3 2 p2
  • p1, n and p2 are constants.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • n RNTI is the identification code of the user equipment
  • ID beam is the identification code of the beam
  • n s is the slot number corresponding to the resource where the data is located. Is the cell identification code.
  • the initial value of the scrambling code may be generated based on the identification code of the beam.
  • the beam parameters may also be parameters related to the identification code of the beam, such as time slot parameters, band parameters, and the like.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can also be expressed as:
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code A parameter q and a target parameter for indicating a codeword sequence number, the target parameter including a beam parameter.
  • the beam parameter may be an identification code ID Beam of a beam for transmitting data.
  • the identification codes of the beams corresponding to different TRPs are different.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n
  • m4 2 p3
  • p1 , p2 , n and p3 are all constants.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • n RNTI is an identifier of the user equipment
  • q is a parameter for indicating a codeword sequence number
  • ID Beam is an identifier of the beam
  • n s is a slot number corresponding to the resource where the data is located. Is the cell identification code.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can also be expressed as:
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code a parameter q for indicating a codeword sequence number and a target parameter, where the target parameter is a first identification code to which the TRP is assigned, and the first identification code is used to generate an initial value of the scrambling code.
  • the first identification code is denoted as p.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n
  • m4 2 p3
  • p1 , p2 , n and p3 are all constants.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • n RNTI is an identifier of the user equipment
  • q is a parameter for indicating a codeword sequence number
  • p is a first identifier code to which the TRP is assigned
  • n s is a slot number corresponding to the resource where the data is located, Is the cell identification code.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can also be expressed as:
  • the TRP acquiring the target parameter may include: the TRP receiving the first identification code sent by the network side device.
  • the network side device is used to manage the TRP.
  • the network side device allocates different first identification codes to different TRPs. For example, in FIG. 1, the first identifier code assigned by the network side device to the first TRP001 is 3, and the first identification code assigned to the second TRP002 is 4. Since different TRPs are assigned different first identification codes, the initial values of the scrambling codes generated by different TRPs according to the configuration parameters are different.
  • the method may further include: the TRP sending the first identification code to the user equipment.
  • the first TRP001 sends the first identification code 3 to the user equipment 30, and the second TRP002 sends the first identification code 4 to the user equipment 30, so that the user equipment obtains the scrambling code sequence and uses the scrambling code sequence pair.
  • the received data is descrambled.
  • the TRP may send the first identification code to the user equipment through the control channel.
  • the user equipment After receiving the first identification code, the user equipment generates an initial value of the scrambling code according to the configuration parameter, and then obtains a scrambling code sequence for descrambling based on the initial value of the scrambling code.
  • the TRP can also receive the first identification code sent by the network side device, generate an initial value of the scrambling code according to the configuration parameter, and then based on the interference.
  • the code initial value yields a scrambling code sequence for descrambling.
  • the TRP After receiving the first identification code sent by the network side device, the TRP sends the first identification code to the user equipment, so that the user equipment generates the initial value of the scrambling code. Thereafter, the user equipment obtains a scrambling code sequence for scrambling based on the scrambling code initial value.
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code A parameter q and a target parameter for indicating a codeword sequence number, the target parameter being a second identifier code pre-allocated by the TRP.
  • the second identification code is used to indicate the TRP.
  • the second identification code is recorded as The initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n
  • m4 2 p3
  • p1 , p2 , n and p3 are all constants.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • n RNTI is an identifier of the user equipment
  • q is a parameter used to indicate a codeword sequence number.
  • n s is the slot number corresponding to the resource where the data is located, Is the cell identification code.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init may also be expressed as:
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can also be expressed as:
  • the acquiring, by the TRP, the target parameter may include: acquiring, by the TRP, a pre-allocated second identification code. a second identifier code that is pre-allocated by different TRPs different.
  • a second identifier code that is pre-allocated by different TRPs different.
  • the first TRP001 is pre-allocated with a second identification code of 5
  • the second TRP002 is pre-allocated with a second identification code of 6. Since different TRPs are pre-allocated with different second identification codes, the initial values of the scrambling codes generated by different TRPs according to the configuration parameters are different.
  • About assigning a second identification code to the TRP The process can refer to related technologies.
  • the method may further include: sending the second identification code to the user equipment.
  • the first TRP001 sends the second identification code 5 to the user equipment 30, and the second TRP002 sends the second identification code 6 to the user equipment 30.
  • the TRP sends the second identification code to the user equipment after acquiring the pre-assigned second identification code.
  • the TRP may send the second identification code to the user equipment through the control channel.
  • the user equipment After receiving the second identification code, the user equipment generates an initial value of the scrambling code according to the configuration parameter, and then obtains a scrambling code sequence for descrambling based on the initial value of the scrambling code.
  • the TRP can also obtain the pre-allocated second identification code, and then generate the initial value of the scrambling code according to the configuration parameter, and then based on the scrambling code.
  • the initial value yields a scrambling code sequence for descrambling.
  • the TRP sends the second identification code to the user equipment, so that the user equipment generates the initial value of the scrambling code. Thereafter, the user equipment obtains a scrambling code sequence for scrambling based on the scrambling code initial value.
  • the configuration parameter may include: an identity code UEid of the user equipment, a slot number n s corresponding to the resource where the data is located, a parameter q for indicating a codeword sequence number, and a cell identifier code.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1 such as, M1, m2 and m3 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 p3
  • p1 , p2 and p3 are all constants.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • the identification code for the user equipment UEID is a parameter indicating the number of code words
  • n s is a slot number data corresponding to the resource is located
  • the TRP obtains an identifier code UEid assigned to the user equipment.
  • Different TRPs have different identification codes assigned to user equipment. For example, in FIG. 1 , the identifier code assigned to the user equipment 30 by the first TRP 001 is 7, and the identifier code assigned by the second TRP 002 to the user equipment 30 is 8. Since different TRPs have different identification codes assigned to user equipments, the initial values of scrambling codes generated by different TRPs are different.
  • different TRPs may be pre-assigned an identification code range, and different TRPs are pre-assigned with different identification code ranges.
  • different TRPs may randomly generate an identification code by using different hash functions, and then assign the generated identification code to the user equipment.
  • the first TRP001 is pre-assigned with an identifier code ranging from 100 to 200
  • the second TRP001 is pre-assigned with an identifier code ranging from 300 to 400.
  • the first TRP001 selects an identification code 150 from 100 to 200 and assigns it to the user equipment 30.
  • the second TRP002 selects an identification code 370 from 300 to 400 and assigns it to the user equipment 30.
  • the identification codes assigned by the first TRP 001 and the second TRP 002 to the user equipment 30 are different.
  • the first TRP 001 generates a identification code using a hash function and assigns it to the user equipment 30.
  • the second TRP 002 generates another identification code by using another hash function, and assigns it to the user equipment 30.
  • the first TRP001 and the second TRP002 generate different identification codes.
  • the user equipment is the data receiving end
  • the user equipment acquiring the identification code of the user equipment may include: obtaining the identification code allocated by the TRP for the user equipment during the uplink access process.
  • the user equipment 30 obtains the identifier code 150 assigned by the first TRP001 to the user equipment 30 during the uplink access process, and the identifier code assigned by the second TRP002 to the user equipment 30 during the uplink access process. 370.
  • the TRP can also obtain the identification code assigned to the user equipment, generate the initial value of the scrambling code, and then obtain the initial value based on the scrambling code.
  • the scrambling code sequence for descrambling the user equipment obtains the identifier code assigned by the TRP to the user equipment during the uplink access process, and then generates an initial value of the scrambling code based on the identifier code allocated by the TRP for the user equipment, and then obtains the scrambling code based on the initial value of the scrambling code. Scrambling code sequence.
  • n RNTI ⁇ 2 14 in the above formula (1) to formula (11) may also be replaced by UEid ⁇ 2 14 in the implementable manner.
  • the configuration parameter includes: an identifier code n RNTI of the user equipment, a slot number n s corresponding to the resource where the data is located, and a cell identifier code.
  • a target parameter the target parameter may include a port parameter of the RS and a first identification code p to which the TRP is assigned.
  • the RS is a DMRS.
  • the port parameters of the DMRS include the port number DMRS of the DMRS .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 n
  • m3 2 p2
  • m4 2 p3
  • p1 , n , p2 and p3 are all constants.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init can be expressed as:
  • n RNTI is the identification code of the user equipment
  • p is the first identification code assigned to the TRP
  • the port DMRS is the port number of the DMRS
  • n s is the slot number corresponding to the resource where the data is located. Is the cell identification code.
  • TRP scrambling code according to the initial value c init configuration parameters may be generated expressed as:
  • the port parameter of the DMRS includes the port group identifier code DMRSGroupID of the DMRS .
  • the TRP scrambling initial value c init configuration parameters generated can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 n
  • m3 2 p2
  • m4 2 p3
  • p1 , n , p2 and p3 are all constants.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • n RNTI is the identification code of the user equipment
  • p is the first identification code assigned to the TRP
  • the port DMRSGroupID is the port group identification code of the DMRS
  • n s is the slot number corresponding to the resource where the data is located. Is the cell identification code.
  • TRP scrambling code according to the initial value c init configuration parameters may be generated expressed as:
  • the target parameter may further include a resource parameter of the RS, and the resource parameter of the RS may refer to a corresponding content in the fifth achievable manner.
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code A parameter q for indicating a codeword sequence number and a target parameter, the target parameter including a port parameter of the RS and a first identification code p to which the TRP is assigned.
  • the RS is a DMRS.
  • the port parameters of the DMRS include the port number DMRS of the DMRS .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, m4 and m5 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n1
  • m4 2 n2
  • m5 2 p3
  • p1 , p2 , n1 , n2 and p3 are all constants.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • n RNTI is an identifier of the user equipment
  • q is a parameter for indicating a codeword sequence number
  • p is a first identifier
  • Port DMRS is a port number of the DMRS
  • n s is a slot number corresponding to the resource where the data is located, Is the cell identification code.
  • TRP scrambling code according to the initial value c init configuration parameters may be generated expressed as:
  • the port parameter of the DMRS includes the port group identifier code DMRSGroupID of the DMRS .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, m4 and m5 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n1
  • m4 2 n2
  • m5 2 p3
  • p1 , p2 , n1 , n2 and p3 are all constants.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • n RNTI is the identification code of the user equipment
  • q is the parameter for indicating the codeword sequence number
  • p is the first identification code
  • the port DMRSGroupID is the port group identification code of the DMRS
  • n s is the slot number corresponding to the resource where the data is located.
  • TRP scrambling code according to the initial value c init configuration parameters may be generated expressed as:
  • the target parameter may further include a resource parameter of the RS.
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code And a target parameter, the target parameter including a port parameter of the RS and a second identifier code pre-allocated by the TRP
  • the RS is a DMRS.
  • the port parameters of the DMRS include the port number DMRS of the DMRS .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n
  • m4 2 p3
  • p1 , p2 , n and p3 are all constants.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • n RNTI is the identification code of the user equipment
  • Port DMRS is the port number of the DMRS.
  • a second identification code pre-allocated for the TRP where n s is the slot number corresponding to the resource where the data is located, Is the cell identification code.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init may also be expressed as:
  • TRP scrambling code according to the initial value c init configuration parameters may be generated expressed as:
  • the port parameter of the DMRS includes the port group identifier code DMRSGroupID of the DMRS .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 n1
  • m3 2 n2
  • m4 2 p2
  • p1 , n1 , n2 and p2 are constants.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • n RNTI is an identifier of the user equipment
  • the port DMRSGroupID is a port group identification code of the DMRS.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init may also be expressed as:
  • TRP scrambling code according to the initial value c init configuration parameters may be generated expressed as:
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code a parameter q and a target parameter for indicating a codeword sequence number, the target parameter including a port parameter of the RS and a second identifier code pre-allocated by the TRP
  • the RS is a DMRS.
  • the port parameters of the DMRS include the port number DMRS of the DMRS .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, m4 and m5 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n1
  • m4 2 n2
  • m5 2 p3
  • p1 , p2 , n1 , n2 and p3 are all constants.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • n RNTI is the identification code of the user equipment
  • q is a parameter for indicating the codeword serial number
  • Port DMRS is the port number of the DMRS.
  • a second identification code pre-allocated for the TRP where n s is the slot number corresponding to the resource where the data is located, Is the cell identification code.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init may also be expressed as:
  • TRP scrambling code according to the initial value c init configuration parameters may be generated expressed as:
  • the port parameter of the DMRS includes the port group identifier code DMRSGroupID of the DMRS .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, m4 and m5 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n1
  • m4 2 n2
  • m5 2 p3
  • p1 , p2 , n1 , n2 and p3 are all constants.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • n RNTI is the identification code of the user equipment
  • q is a parameter for indicating the codeword serial number
  • Port DMRSGroupID is the port group identification code of the DMRS.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameter c init may also be expressed as:
  • TRP scrambling code according to the initial value c init configuration parameters may be generated expressed as:
  • n RNTI in the foregoing formula (13) to formula (20) may also be replaced by the UE id in the tenth implementable manner.
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code A parameter q and a target parameter for indicating a codeword sequence number, the target parameter including a synchronization signal related parameter Para Syn .
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n
  • m4 2 p3
  • p1 , p2 , n and p3 are all constants.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • n RNTI is an identifier of the user equipment
  • q is a parameter for indicating a codeword sequence number
  • Para Syn is a synchronization signal related parameter
  • n s is a slot number corresponding to a resource where the data is located, Is the cell identification code.
  • the synchronization signal can be a PSS, SSS or PRACH signal.
  • the synchronization signal related parameter may include at least one of a preset parameter for determining a synchronization signal sequence, a resource parameter of the synchronization signal, and a port parameter of the synchronization signal.
  • the preset parameters are a root sequence parameter, a cyclic shift parameter, or a scrambling parameter.
  • the synchronization signal related parameter Para Syn may include a preset parameter f c , which is a root sequence (ie, ZC (Zadoff-Chu) root sequence) parameter, a cyclic shift parameter, or a scrambling parameter.
  • a preset parameter f c is a root sequence (ie, ZC (Zadoff-Chu) root sequence) parameter, a cyclic shift parameter, or a scrambling parameter.
  • the root sequence is directly used to determine the root sequence parameter corresponding to the synchronization signal sequence is 1, and the root sequence is cyclically shifted to determine that the cyclic shift parameter corresponding to the synchronization signal sequence is 2, and the root sequence is cyclically shifted and added. After the scrambling, it is determined that the scrambling parameter corresponding to the synchronization signal sequence is 3.
  • the scrambling code initial value may be generated based on the corresponding preset parameters.
  • the synchronization signal related parameter Para Syn may also include the transmission order number of the SS block of the synchronization signal or the transmission order number of the uplink RACH occasion.
  • the TRP continuously transmits a plurality of SS blocks in the time domain, and each SS block has a transmission order number. Assuming that the TRP continuously transmits four SS blocks, the first SS block corresponding to the transmission order number is 1, and the second SS block corresponding to the transmission order number is 2, and the third SS block corresponding to the transmission is sent. The sequence number is 3, and the transmission order number corresponding to the 4th SS block transmitted is 4.
  • the initial value of the scrambling code can be generated based on the transmission order number of the SS block.
  • the TRP continuously transmits multiple RACH occasions in the time domain, and each RACH occasion has a transmission sequence number. Therefore, when the transmission sequence numbers of the RACH occasions sent by different TRPs are different, it may be based on The transmission sequence number of the RACH occasion generates an initial value of the scrambling code.
  • configuration parameters include: the identification code n RNTI of the user equipment, data transmission services where the resource data corresponding to the slot number n s, a cell identification code A parameter q indicating a codeword sequence number and a target parameter, the target parameter including a transmission order number c1 of the SS block.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as: such as, M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n
  • m4 2 p3
  • p1 , p2 , n and p3 are all constants.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • Figures 2-3 exemplarily show a schematic diagram of the SS block transmission order.
  • the TRP continuously sends four SS blocks.
  • the sending sequence number corresponding to the first SS block sent is 0, the sending sequence number corresponding to the second SS block is 1, and the third SS block corresponds.
  • the transmission order number is 2, the transmission order number corresponding to the 4th SS block is 3, and the number of symbols occupied by each SS block is 4, and the slots occupied by the first two SS blocks and the latter two SS blocks are different.
  • the sending sequence number 1 corresponding to the second SS block may be substituted.
  • the synchronization signal related parameter Para Syn may also include a port parameter d c of the synchronization signal, and the port parameter of the synchronization signal may be used to indicate at least one of a port number of the synchronization signal and a port group number of the synchronization signal, the port group including at least one One port.
  • the port number can be a port ID or a port index.
  • the port group ID can be a port group ID or a port group index.
  • the port group identification code for the port number of the synchronization signal and the synchronization signal can be described with reference to the DMRS.
  • the initial value of the scrambling code c init generated by the TRP according to the configuration parameters can also be expressed as:
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code A parameter q and a target parameter for indicating a codeword sequence number, the target parameter including a QCL indication parameter Para QCL .
  • the QCL indication parameters corresponding to different TRPs are different.
  • Each TRP corresponds to at least one QCL set, and each QCL set in the at least one QCL set is used to record an RS having a quasi-co-location relationship, a SS block, and the like.
  • the channel estimation of the elements contained in a QCL set is the same.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n
  • m4 2 p3
  • p1 , p2 , n and p3 are all constants.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • n RNTI is the identification code of the user equipment
  • q is a parameter for indicating the codeword sequence number
  • Para QCL is the QCL indication parameter
  • n s is the slot number corresponding to the resource where the data is located. Is the cell identification code.
  • the QCL indication parameter may include at least one of a set identification code of the QCL set and a set index number of the QCL set.
  • Different TRPs belong to different QCL sets.
  • the channel estimation mode of the RS of the first TRP001 in FIG. 1 is different from the channel estimation mode of the RS of the second TRP002, and the set identification code of the QCL set to which the RS of the first TRP001 belongs is 1, that is, the formula (22)
  • the Para QCL in the ) is 1.
  • the set identification code of the QCL set to which the RS of the second TRP002 belongs is 2, that is, the Para QCL in the formula (22) is 2.
  • the initial value of the scrambling code c init generated by the TRP according to the configuration parameters can also be expressed as:
  • the configuration parameters include: the identification code n RNTI of the user equipment, where the resource data corresponding to the slot number n s, a cell identification code A parameter q and a target parameter for indicating a codeword sequence number, the target parameter includes a PDCCH-related parameter, and the PDCCH-related parameter may be used to indicate configuration information of the PDCCH.
  • the PDCCH related parameter may include a resource parameter Para PDCCH of the PDCCH , and the resource parameter of the PDCCH may be used to indicate a location of the PDCCH in the time domain and/or the frequency domain.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, and m4 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n
  • m4 2 p3
  • p1 , p2 , n and p3 are all constants.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • n RNTI is an identifier of the user equipment
  • q is a parameter for indicating a codeword sequence number
  • the Para PDCCH is a resource parameter of the PDCCH
  • n s is a slot number corresponding to the resource where the data is located. Is the cell identification code.
  • the location of the PDCCH in the time domain is the identifier of the symbol occupied by the PDCCH, and the location of the PDCCH in the frequency domain or the identifier of the subcarrier occupied by the PDCCH.
  • TRP scrambling code according to the initial value c init configuration parameters may be generated expressed as:
  • the target parameter may further include: a group identification code of the TRP group to which the TRP belongs, and the TRP group includes at least one TRP.
  • the group IDs of different TRP groups are different.
  • one 5G NR cell includes 10 TRPs, and 10 TRPs are divided into two groups, each group including 5 TRPs.
  • the group ID of the first group is 9, and the group ID of the second group is 10.
  • the first TRP001 belongs to the first group
  • the second TRP002 belongs to the second group.
  • the scrambling code sequence may be obtained based on the group identification code of the TRP group, or the scrambling code sequence may be obtained based on parameters related to the group identification code of the TRP group.
  • the group identification code of the TRP group is recorded as N TRPSet .
  • the TRP is pre-assigned the group identification code of the TRP group to which the TRP belongs.
  • the TRP generates an initial value of the scrambling code according to the group identification code of the TRP group to which it belongs.
  • the TRP sends the group identification code of the TRP group to which the TRP belongs to the user equipment, so that the user equipment generates the initial value of the scrambling code based on the group identification code.
  • the target parameter includes a second identification code pre-allocated by the TRP And the group identification code N TRPSet of the TRP group to which the TRP belongs.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as:
  • M1, m2, m3, m4 and m5 are all constants.
  • m1 2 p1
  • m2 2 p2
  • m3 2 n1
  • m4 2 n2
  • m5 2 p3
  • p1 , p2 , n1 , n2 and p3 are all constants.
  • TRP scrambling code according to the initial value c init configuration parameters generated can be expressed as:
  • n RNTI is an identifier of the user equipment
  • n s is a slot number corresponding to the resource where the data is located.
  • q is a parameter for indicating the codeword sequence number.
  • a second identification code pre-assigned to the TRP, and the N TRPSet is a group identification code of the TRP group to which the TRP belongs.
  • n in the above different formulas may be the same or different.
  • N1 in different formulas may be the same or different, and n2 in different formulas may be the same or different.
  • the m1 in the different formulas may be the same or different.
  • the m2 in different formulas may be the same or different.
  • M3 in different formulas may be the same or different.
  • M4 in different formulas may be the same or different.
  • M5 in different formulas may be the same or different.
  • the achievable manner in the embodiment of the present invention is not limited to the foregoing implementable manner.
  • the first identifier code that is allocated by the TRP may be combined to generate the initial value of the scrambling code based on the third implementable manner.
  • the initial value of the scrambling code is generated by combining the identification code of the beam.
  • the configuration parameters in the embodiment of the present invention may further include parameters other than the parameters mentioned in the foregoing implementation manner, such as a code block group (CBG) parameter and a bandwidth block (Band). Width part, BWP) parameters, subcarrier spacing parameters, etc.
  • the parameters included in the configuration parameters are not limited in the embodiment of the present invention.
  • the CBG parameter may be a group identification code of the CBG
  • the BWP parameter may be a block identification code of the CBG
  • the subcarrier spacing parameter may be an identification code of the subcarrier spacing.
  • the initial value of the scrambling code generated by the TRP according to the configuration parameters c init can be expressed as: Where x is the group identification code of the CBG, and y is the block identification code of the CBG.
  • Step 204 The TRP determines a scrambling code sequence based on the initial value of the scrambling code.
  • the TRP may determine the scrambling code sequence based on the initial value of the scrambling code obtained in step 203.
  • the TRP may also determine the scrambling code sequence based on the configuration parameters obtained in step 202.
  • Step 205 The TRP scrambles the acquired data by using a scrambling code sequence to obtain scrambled data.
  • the TRP obtains scrambled data according to the scrambling code sequence and the sequence corresponding to the acquired data.
  • the specific process of scrambling can refer to related technologies.
  • the first TRP001 and the second TRP002 in FIG. 1 scramble the acquired data using the scrambling code sequences obtained respectively.
  • Step 206 The TRP sends the scrambled data to the user equipment.
  • the first TRP001 sends the scrambled data obtained by the first TRP001 to the user equipment 30, and the second TRP002 sends the scrambled data obtained by the second TRP002 to the user equipment 30.
  • the initial value of the scrambling code obtained by the first TRP001 is different from the initial value of the scrambling code obtained by the second TRP002, so the scrambling code sequence obtained by the first TRP001 is different from the scrambling code sequence obtained by the second TRP002, and then any TRP is applied to another TRP.
  • the resulting interference is randomized interference. In this way, the user equipment 30 can better obtain the data sent by the first TRP001 or the second TRP002, thereby improving system performance.
  • Step 207 The user equipment acquires a scrambling code sequence.
  • the user equipment obtains a scrambling code sequence according to the initial value of the scrambling code. Specifically, the user equipment acquires the configuration parameter, and then generates an initial value of the scrambling code according to the configuration parameter, and then determines the scrambling code sequence based on the initial value of the scrambling code.
  • the user equipment descrambles the scrambling data sent by each TRP by using a corresponding scrambling code sequence. For example, in FIG. 1, the first TRP001 obtains a scrambling code sequence F, and the user equipment 30 acquires a scrambling code sequence identical to the scrambling code sequence F to descramble the scrambled data obtained by the first TRP001.
  • the second TRP002 obtains a scrambling code sequence E, and the user equipment 30 acquires a scrambling code sequence identical to the scrambling code sequence E to descramble the scrambled data obtained by the second TRP002.
  • the process of the user equipment acquiring the scrambling code sequence may refer to a corresponding process in the foregoing multiple implementable manners.
  • Step 208 The user equipment descrambles the scrambled data by using a scrambling code sequence.
  • the first TRP001 scrambles the acquired data x1 with the scrambling code sequence F to obtain the scrambled data y1; and the second TRP002 scrambles the acquired data x2 with the scrambling code sequence E to obtain the scrambled data y2.
  • the first TRP 001 sends the scrambled data y1 to the user equipment 30, and the second TRP 002 sends the scrambled data y2 to the user equipment 30.
  • the user equipment 30 After receiving the scrambling data y1 sent by the first TRP001, the user equipment 30 obtains the scrambling code sequence F, descrambles the scrambled data y1 by using the scrambling code sequence F, and obtains x1; the user equipment 30 receives the scrambled data sent by the second TRP002. After y2, the scrambling code sequence E is obtained, and the scrambling code sequence y2 is descrambled by the scrambling code sequence E to obtain x2.
  • the first TRP001 and the second TRP002 in FIG. 1 are taken as an example.
  • the second TRP002 also sends the scrambled data to the user equipment 30.
  • the second TRP002 may interfere with the transmission process of the first TRP001.
  • the data received by the user equipment 30 includes the scrambled data sent by the first TRP001 and the scrambled data sent by the second TRP002. Because the scrambling code sequence obtained by the first TRP and the scrambling code sequence obtained by the second TRP002 are different, the interference caused by the second TRP002 on the first TRP001 is randomized interference.
  • the user equipment 30 can better obtain the scrambled data transmitted by the first TRP001 from the received data. After obtaining the scrambled data sent by the first TRP001, the user equipment 30 descrambles the scrambled data by using a corresponding scrambling code sequence to obtain original data. Similarly, the user equipment 30 can better obtain the scrambled data sent by the second TRP002 from the received data, and descramble the scrambled data by using a corresponding scrambling code sequence to obtain the original data.
  • sequence of steps of the scrambling code sequence generation method provided by the embodiment of the present invention may be appropriately adjusted.
  • the steps may also be increased or decreased according to the situation, and any method that can be easily conceived within the technical scope of the present invention is well within the scope of the present invention, and therefore will not be described again. .
  • the method for generating a scrambling code sequence can determine a scrambling code sequence according to a configuration parameter of a TRP, and use the scrambling code sequence to scramble or descramble the data.
  • the configuration parameters corresponding to different TRPs are different.
  • the different TRPs obtain different scrambling sequences, and the interference caused by any TRP to another TRP is randomized interference, which improves system performance.
  • FIG. 3-1 is a schematic structural diagram of a scrambling code sequence generating apparatus 300 according to an embodiment of the present invention.
  • the scrambling code sequence generating apparatus 300 can be applied to the TRP in the implementation environment shown in FIG. 1, and can also be applied to user equipment.
  • the TRP can be the sender of the data or the receiver of the data.
  • the scrambling code sequence generating apparatus 300 includes:
  • the determining module 310 is configured to determine a scrambling code sequence according to a configuration parameter of the TRP, where configuration parameters corresponding to different TRPs are different.
  • the processing module 320 is configured to scramble or descramble the data by using the scrambling code sequence determined by the determining module.
  • the determining module 310 may include:
  • the generating sub-module 311 is configured to implement step 203 in the foregoing embodiment.
  • the determining sub-module 312 is configured to implement step 204 in the above embodiment.
  • the configuration parameter includes a target parameter, and different target parameters corresponding to different TRPs are different.
  • the configuration parameter further includes: at least one of an identifier of the user equipment, a slot number corresponding to the resource where the data is located, a cell identifier, and a parameter indicating a codeword sequence number.
  • the target parameter may include at least one of an RS related parameter, a beam parameter, a first identifier that is allocated by the TRP, a second identifier that is pre-allocated by the TRP, a synchronization signal related parameter, a QCL indication parameter, and a PDCCH related parameter.
  • the RS related parameter may be used to indicate configuration information of the RS
  • the beam parameter is used to indicate a beam for transmitting data
  • the first identification code is used to generate an initial value of the scrambling code
  • the second identification code is used to indicate a TRP
  • a QCL indication of different TRPs may be used to indicate configuration information of the PDCCH.
  • the RS related parameter includes at least one of a port parameter of the RS and a resource parameter of the RS.
  • the port parameter of the RS may be used to indicate at least one of a port number of the RS and a port group number of the RS, and the port group includes at least one port.
  • the port number can be a port ID or a port index.
  • the port group ID can be a port group ID or a port group index.
  • the resource parameters of the RS can be used to indicate the location of the RS in the time domain and/or the frequency domain.
  • the RS is DMRS, CSI-RS, PT-RS, TRS or SRS.
  • the DMRS may be an uplink DMRS or a downlink DMRS, and the uplink DMRS may be a data channel DMRS or a control channel DMRS; the downlink DMRS may be a data channel DMRS or a control channel DMRS.
  • the beam parameter may be used to indicate an identification code of a beam that transmits data.
  • the synchronization signal related parameter may include at least one of a preset parameter for determining a synchronization signal sequence, a resource parameter of the synchronization signal, and a port parameter of the synchronization signal.
  • the preset parameter is a root sequence parameter, a cyclic shift parameter, or a scrambling parameter.
  • the resource parameter of the synchronization signal may be used to indicate the transmission order number of the SS block of the synchronization signal or the transmission order number of the uplink RACH occasion.
  • the port parameter of the synchronization signal may be used to indicate at least one of a port number of the synchronization signal and a port group number of the synchronization signal, the port group including at least one port.
  • the port number can be a port ID or a port index.
  • the port group ID can be a port group ID or a port group index.
  • the synchronization signal can be a PSS, SSS or PRACH signal.
  • the QCL indication parameter may be used to indicate at least one of a set identification code of the QCL set and a set index number of the QCL set.
  • the PDCCH-related parameter may include a resource parameter of the PDCCH, where the resource parameter of the PDCCH may be used to indicate a location of the PDCCH in the time domain and/or the frequency domain.
  • different TRPs have different identification codes assigned to user equipments.
  • the target parameter further includes: a group identification code of the TRP group to which the TRP belongs.
  • the TRP group includes at least one TRP.
  • the scrambling code sequence generating apparatus is capable of determining a scrambling code sequence according to a configuration parameter of the TRP, and scrambling or descrambling the data by using the scrambling code sequence.
  • the configuration parameters corresponding to different TRPs are different.
  • the different TRPs obtain different scrambling sequences, and the interference caused by any TRP to another TRP is randomized interference, which improves system performance.
  • the scrambling code sequence generating apparatus 500 can be applied to the TRP in the implementation environment shown in FIG. 1, and can also be applied to user equipment, TRP. It can be the sender of the data or the receiver of the data. As shown in FIG. 4, the scrambling code sequence generating apparatus 500 includes at least one processor 510 and an interface 520, and the processor 510 and the interface 520 are connected by a bus 530.
  • the processor 510 is configured to: determine a scrambling code sequence according to a configuration parameter of the TRP, where configuration parameters corresponding to different TRPs are different; and use the scrambling code sequence to scramble or descramble the data.
  • the scrambling code sequence generating apparatus is capable of determining a scrambling code sequence according to a configuration parameter of the TRP, and scrambling or descrambling the data by using the scrambling code sequence.
  • the configuration parameters corresponding to different TRPs are different.
  • the different TRPs obtain different scrambling sequences, and the interference caused by any TRP to another TRP is randomized interference, which improves system performance.
  • the processor 510 is specifically configured to:
  • a scrambling code sequence is determined based on the initial value of the scrambling code.
  • the configuration parameter includes a target parameter, and different target parameters corresponding to different TRPs are different.
  • the configuration parameter further includes: at least one of an identifier of the user equipment, a slot number corresponding to the resource where the data is located, a cell identifier, and a parameter indicating a codeword sequence number.
  • the target parameter may include at least one of an RS related parameter, a beam parameter, a first identifier that is allocated by the TRP, a second identifier that is pre-allocated by the TRP, a synchronization signal related parameter, a QCL indication parameter, and a PDCCH related parameter.
  • the RS related parameter may be used to indicate configuration information of the RS
  • the beam parameter is used to indicate a beam for transmitting data
  • the first identification code is used to generate an initial value of the scrambling code
  • the second identification code is used to indicate a TRP
  • a QCL indication of different TRPs may be used to indicate configuration information of the PDCCH.
  • the RS related parameter includes at least one of a port parameter of the RS and a resource parameter of the RS.
  • the port parameter of the RS may be used to indicate at least one of a port number of the RS and a port group number of the RS, and the port group includes at least one port.
  • the port number can be a port ID or a port index.
  • the port group ID can be a port group ID or a port group index.
  • the resource parameters of the RS can be used to indicate the location of the RS in the time domain and/or the frequency domain.
  • the RS is DMRS, CSI-RS, PT-RS, TRS or SRS.
  • the DMRS may be an uplink DMRS or a downlink DMRS, and the uplink DMRS may be a data channel DMRS or a control channel DMRS; the downlink DMRS may be a data channel DMRS or a control channel DMRS.
  • the beam parameter may be used to indicate an identification code of a beam that transmits data.
  • the synchronization signal related parameter may include at least one of a preset parameter for determining a synchronization signal sequence, a resource parameter of the synchronization signal, and a port parameter of the synchronization signal.
  • the preset parameters are a root sequence parameter, a cyclic shift parameter, or a scrambling parameter.
  • the resource parameter of the synchronization signal may be used to indicate the transmission order number of the SS block of the synchronization signal or the transmission order number of the uplink RACH occasion.
  • the port parameter of the synchronization signal may be used to indicate at least one of a port number of the synchronization signal and a port group number of the synchronization signal, the port group including at least one port.
  • the port number can be a port ID or a port index.
  • the port group ID can be a port group ID or a port group index.
  • the synchronization signal can be a PSS, SSS or PRACH signal.
  • the QCL indication parameter may be used to indicate at least one of a set identification code of the QCL set and a set index number of the QCL set.
  • the PDCCH related parameter includes a resource parameter of the PDCCH
  • the resource parameter of the PDCCH may be used to indicate a location of the PDCCH in the time domain and/or the frequency domain.
  • different TRPs have different identification codes assigned to user equipments.
  • the target parameter further includes: a group identification code of the TRP group to which the TRP belongs, and the TRP group includes at least one TRP.
  • the processor may be a chip.
  • the processor may be a logic circuit, an integrated circuit, or the like; the processor may be a general-purpose processor, which is implemented by reading software code stored in the memory.
  • the memory can be integrated in the processor, can be located outside of the processor, and can exist independently.
  • the scrambling code sequence generating apparatus 500 may further include a memory 540.
  • the memory 540 includes an operating system 5401 and an application program 5402.
  • the operating system 5401 includes various operating system programs for implementing hardware-based components.
  • the application 5402 includes various applications for implementing various application functions, such as a data scrambling program or a data descrambling program, and the data scrambling program enables the scrambling sequence generating device to scramble the acquired data using a scrambling sequence.
  • the processor 510 can execute an application stored in the memory 540 to cooperate with the scrambling code sequence generation method illustrated in FIG. 2-1.
  • the scrambling code sequence generating apparatus provided by the embodiment of the present invention implements the functions performed by the scrambling code sequence generating apparatus in the apparatus embodiment shown in FIG. 3-1 by the cooperation of the foregoing various execution modules.
  • the determining module 310 in FIG. 3-1 in the above may be implemented by a processor, or may be implemented by the processor executing an application stored in the memory.
  • the processor 510 may be a central processing unit (CPU), and the processor 510 may also be other general-purpose processors, digital signal processing (DSP). , Application Specific Integrated Circuit (ASIC), Field-Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc.
  • DSP digital signal processing
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the above steps may be completed by an integrated logic circuit of hardware in the processor 510 or an instruction in the form of software.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software modules can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory, and the processor 510 reads the information in the memory and completes the steps of the above method in combination with the hardware thereof.
  • the scrambling code sequence generating device further includes an antenna 550.
  • the scrambling code sequence generating device further includes other functional components such as a battery module, a wired/wireless charging structure, and the like.
  • the antenna 550 is used to transmit and receive wireless signals.
  • the antenna 550 can cooperate with the interface 520 to implement signal transmission and reception of signals such as 5G technology.
  • the scrambling code sequence generating apparatus is capable of determining a scrambling code sequence according to a configuration parameter of the TRP, and scrambling or descrambling the data by using the scrambling code sequence.
  • the configuration parameters corresponding to different TRPs are different.
  • the different TRPs obtain different scrambling sequences, and the interference caused by any TRP to another TRP is randomized interference, which improves system performance.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it may be implemented in whole or in part in the form of a computer program product comprising one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present invention are generated in whole or in part.
  • the computer can be a general purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a readable storage medium of a computer or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data
  • the center transmits to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, digital subscriber line) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device such as a server, data center, or the like that includes one or more available media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium, or a semiconductor medium (eg, a solid state hard disk) or the like.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the modules is only a logical function division.
  • there may be another division manner for example, multiple modules or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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

Abstract

L'invention concerne un procédé et un dispositif permettant de générer une séquence de code d'embrouillage et appartenant au domaine technique des communications. Le procédé comprend : la détermination d'une séquence de code d'embrouillage en fonction des paramètres de configuration d'un point d'émission-réception (TRP), les paramètres de configuration correspondant à différents TRP étant différents ; et l'embrouillage ou le désembrouillage de données à l'aide de la séquence de code d'embrouillage. La présente invention est utilisée pour la transmission de données et résout les problèmes dans l'état de la technique selon lesquels l'équipement utilisateur ne peut pas facilement obtenir des données transmises par un TRP parmi des données reçues et selon lesquels les performances de système sont médiocres, améliorant ainsi les performances du système.
PCT/CN2018/088632 2017-06-01 2018-05-28 Procédé et dispositif de génération de séquence de code d'embrouillage WO2018219250A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP18808899.1A EP3624371B1 (fr) 2017-06-01 2018-05-28 Procédé et dispositif de génération de séquence de code d'embrouillage
US16/698,466 US11101909B2 (en) 2017-06-01 2019-11-27 Scrambling code sequence generation method and apparatus

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201710404714.2 2017-06-01
CN201710404714 2017-06-01
CN201710686835.0 2017-08-11
CN201710686835.0A CN108988978B (zh) 2017-06-01 2017-08-11 扰码序列生成方法及装置

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CN103840909A (zh) * 2012-11-22 2014-06-04 普天信息技术研究院有限公司 一种提高解调正确率的方法
WO2014125335A1 (fr) * 2013-02-15 2014-08-21 Freescale Semiconductor, Inc. Procédé et appareil de recherche pour système de communication
US20140321375A1 (en) * 2013-04-25 2014-10-30 Samsung Electronics Co., Ltd. Method and system for acquiring high frequency carrier in a wireless communication network
CN105024778A (zh) * 2014-04-16 2015-11-04 普天信息技术有限公司 下行信道的加扰方法
CN106664686A (zh) * 2014-11-07 2017-05-10 华为技术有限公司 一种数据传输方法、设备及系统

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WO2014125335A1 (fr) * 2013-02-15 2014-08-21 Freescale Semiconductor, Inc. Procédé et appareil de recherche pour système de communication
US20140321375A1 (en) * 2013-04-25 2014-10-30 Samsung Electronics Co., Ltd. Method and system for acquiring high frequency carrier in a wireless communication network
CN105024778A (zh) * 2014-04-16 2015-11-04 普天信息技术有限公司 下行信道的加扰方法
CN106664686A (zh) * 2014-11-07 2017-05-10 华为技术有限公司 一种数据传输方法、设备及系统

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