CN112119595A

CN112119595A - Signal scrambling method and device and communication equipment

Info

Publication number: CN112119595A
Application number: CN201980021125.3A
Authority: CN
Inventors: 陈文洪; 史志华
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-04-19
Filing date: 2019-04-19
Publication date: 2020-12-22
Anticipated expiration: 2039-04-19
Also published as: WO2020211095A1; CN112119595B

Abstract

The embodiment of the application provides a signal scrambling method, a signal scrambling device and communication equipment, wherein the method comprises the following steps: the communication device determines a scrambling sequence initialization value of a first signal according to first information, wherein the first information comprises at least one of the following: the identifier of the first CORESET, and the identifier of the CORESET group to which the first CORESET belongs; and the communication equipment determines the scrambling sequence of the first signal according to the scrambling sequence initialization value.

Description

Signal scrambling method and device and communication equipment

Technical Field

The embodiment of the application relates to the technical field of mobile communication, in particular to a signal scrambling method and device and communication equipment.

Background

In the non-coherent Transmission of a New Radio (NR), signals scheduled by different Transmission/Reception points (TRPs) may be transmitted on overlapping physical resources. According to the existing scrambling sequence generation method, signals scheduled by different TRPs adopt the same scrambling sequence initialization value, so that the same scrambling sequence can be obtained. Thus, when transmission resources of signals scheduled by different TRPs overlap, severe interference may be generated between the signals, thereby affecting transmission performance of the signals.

Disclosure of Invention

The embodiment of the application provides a signal scrambling method and device and communication equipment.

The signal scrambling method provided by the embodiment of the application comprises the following steps:

the communication device determines a scrambling sequence initialization value of a first signal according to first information, wherein the first information comprises at least one of the following: an identifier of a first Control Resource Set (CORESET), an identifier of a CORESET group to which the first CORESET belongs;

and the communication equipment determines the scrambling sequence of the first signal according to the scrambling sequence initialization value.

The signal scrambling device provided by the embodiment of the application is applied to communication equipment, and the device comprises:

a first determining unit, configured to determine a scrambling sequence initialization value of a first signal according to first information, wherein the first information includes at least one of: the identifier of the first CORESET, and the identifier of the CORESET group to which the first CORESET belongs;

a second determining unit, configured to determine a scrambling sequence of the first signal according to the scrambling sequence initialization value.

The communication device provided by the embodiment of the application comprises a processor and a memory. The memory is used for storing a computer program, and the processor is used for calling and running the computer program stored in the memory and executing the signal scrambling method.

The chip provided by the embodiment of the application is used for realizing the signal scrambling method.

Specifically, the chip includes: and the processor is used for calling and running the computer program from the memory so that the equipment provided with the chip executes the signal scrambling method.

A computer-readable storage medium provided in an embodiment of the present application is used for storing a computer program, and the computer program enables a computer to execute the signal scrambling method described above.

The computer program product provided by the embodiment of the present application includes computer program instructions, which make a computer execute the above signal scrambling method.

The computer program provided by the embodiment of the present application, when running on a computer, causes the computer to execute the above-mentioned signal scrambling method.

Through the technical scheme, when the communication equipment schedules signals of different TRPs or different antenna panels (panels) through different CORESETs or CORESET groups, scrambling sequences adopted by the scheduled signals are different, so that the effect of interference randomization can be achieved when transmission resources of the signals are overlapped, and the transmission performance of the signals is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic diagram of a communication system architecture provided by an embodiment of the present application;

fig. 2 is a schematic physical resource diagram of a PDCCH provided in an embodiment of the present application;

fig. 3 is a schematic diagram of a configuration manner of control channel resources according to an embodiment of the present application;

fig. 4-1 is a first schematic diagram of downlink non-coherent transmission provided in the embodiment of the present application;

fig. 4-2 is a schematic diagram of downlink non-coherent transmission provided in the embodiment of the present application;

fig. 5-1 is a schematic diagram of uplink non-coherent transmission provided in the embodiment of the present application;

fig. 5-2 is a schematic diagram of uplink non-coherent transmission provided in the embodiment of the present application;

fig. 6 is a first flowchart of a signal scrambling method provided in an embodiment of the present application;

fig. 7 is a second flowchart of a signal scrambling method according to an embodiment of the present application;

fig. 8 is a schematic structural component diagram of a signal scrambling apparatus provided in an embodiment of the present application;

fig. 9 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

FIG. 10 is a schematic structural diagram of a chip of an embodiment of the present application;

fig. 11 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS), a Worldwide Interoperability for Microwave Access (WiMAX) communication System, or a 5G System.

Illustratively, a communication system 100 applied in the embodiment of the present application is shown in fig. 1. The communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal 120 (or referred to as a communication terminal, a terminal). Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminals located within the coverage area. Optionally, the Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or may be a Network device in a Mobile switching center, a relay Station, an Access point, a vehicle-mounted device, a wearable device, a hub, a switch, a bridge, a router, a Network-side device in a 5G Network, or a Network device in a Public Land Mobile Network (PLMN) for future evolution, or the like.

The communication system 100 further comprises at least one terminal 120 located within the coverage area of the network device 110. As used herein, "terminal" includes, but is not limited to, connection via a wireline, such as via a Public Switched Telephone Network (PSTN), a Digital Subscriber Line (DSL), a Digital cable, a direct cable connection; and/or another data connection/network; and/or via a Wireless interface, e.g., to a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter; and/or means of another terminal arranged to receive/transmit communication signals; and/or Internet of Things (IoT) devices. A terminal that is arranged to communicate over a wireless interface may be referred to as a "wireless communication terminal", "wireless terminal", or "mobile terminal". Examples of mobile terminals include, but are not limited to, satellite or cellular telephones; personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities; PDAs that may include radiotelephones, pagers, internet/intranet access, Web browsers, notepads, calendars, and/or Global Positioning System (GPS) receivers; and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A terminal can refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, User terminal, wireless communication device, User agent, or User Equipment. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal in a 5G network, or a terminal in a future evolved PLMN, etc.

Optionally, a Device to Device (D2D) communication may be performed between the terminals 120.

Alternatively, the 5G system or the 5G network may also be referred to as a New Radio (NR) system or an NR network.

Fig. 1 exemplarily shows one network device and two terminals, and optionally, the communication system 100 may include a plurality of network devices and may include other numbers of terminals within the coverage of each network device, which is not limited in this embodiment of the present application.

Optionally, the communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that a device having a communication function in a network/system in the embodiments of the present application may be referred to as a communication device. Taking the communication system 100 shown in fig. 1 as an example, the communication device may include a network device 110 and a terminal 120 having a communication function, and the network device 110 and the terminal 120 may be the specific devices described above and are not described again here; the communication device may also include other devices in the communication system 100, such as other network entities, for example, a network controller, a mobility management entity, and the like, which is not limited in this embodiment.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In order to facilitate understanding of the technical solutions of the embodiments of the present application, the following description will be made of related technologies related to the embodiments of the present application.

Downlink control channel

In the NR system, a terminal determines a resource for detecting a Physical Downlink Control Channel (PDCCH) through a core set and a Search Space (Search Space) configured on a network side. The CORESET is configured to determine a frequency domain resource size (e.g., the number of occupied PRBs) and a time domain resource size (e.g., the number of occupied OFDM symbols) of the PDCCH in one time slot, where the frequency domain resource size includes a frequency domain resource start position, a frequency domain resource length, a time domain resource length, and the like. And the search space is used for determining the time domain resource position of the PDCCH, including the time domain resource starting position and the monitoring period. According to one cosrseset and one search space configuration, the terminal may determine the location of a physical resource for detecting the PDCCH, such as the resource filled with the diagonal lines in fig. 2.

Specifically, referring to fig. 3, the network side configures up to three CORESET through higher layer signaling (e.g., RRC signaling), and each CORESET has its own CORESET ID. Meanwhile, the network side can also configure at least one search space through high-level signaling, and the configuration parameters of each search space comprise the ID, aggregation level, search space type and the like of CORESET associated with the search space. Each search space can only be associated with one CORESET, but one CORESET can be associated with multiple search spaces. The Search Space type includes a configuration of whether the Search Space is a Common Search Space (CSS) or a UE-specific Search Space (USS), and a Downlink Control Information (DCI) format that a terminal needs to detect in the Search Space. If the search space is the CSS, the search space type (searchSpaceType) in the search space is configured as Common (Common), and the corresponding DCI format to be detected includes at least one of DCI format 2_0, DCI format 2_1, DCI format 2_2, DCI format 2_3, DCI format 0_0, and DCI format 1_0, that is, the DCI is generally used for transmission of scheduling control information. If the search space is the USS, the DCI format that needs to be detected correspondingly includes DCI format 0_0 And DCI format 1_0(formats0-0-And-1-0), or includes DCI format 0_1 And DCI format 1_1(formats0-1-And-1-1), that is, the DCI is generally used for scheduling uplink or downlink data transmission.

Uplink and downlink non-coherent transmission

Non-coherent transmission of downlink and uplink based on multiple TRPs is introduced in NR systems. The backhaul (backhaul) connection between the TRPs may be ideal or non-ideal, information interaction between the TRPs under the ideal backhaul can be performed rapidly and dynamically, and information interaction between the TRPs under the non-ideal backhaul can be performed only quasi-statically due to the larger time delay. In Downlink non-coherent transmission, multiple TRPs may use different control channels to independently schedule the Physical Downlink Shared Channel (PDSCH) transmission of a terminal, and the scheduled PDSCH may be transmitted in the same time slot or different time slots. The terminal needs to support simultaneous reception of PDCCH and/or PDSCH from different TRPs. When the terminal feeds back the ACK/NACK, the ACK/NACK may be fed back to different TRPs (as shown in fig. 4-1) transmitting the corresponding PDSCH, or may be combined and reported to one TRP (as shown in fig. 4-2). The former can be applied to two scenes of ideal backhaul and non-ideal backhaul, and the latter can only be applied to the scene of ideal backhaul. Wherein, PDSCH sent by different TRPs can carry the same data, thus the transmission reliability of PDSCH can be further improved by diversity transmission of multiple TRPs. At this time, the terminal only needs to report one ACK/NACK for multiple PDSCHs carrying the same data. The PDCCH for scheduling PDSCH transmitted by different TRPs may be carried by different CORESET or CORESET groups, that is, the network side configures multiple CORESET or CORESET groups, and each TRP is scheduled by using its own CORESET or CORESET group.

In Uplink non-coherent transmission, different TRPs may also independently schedule transmission of a Physical Uplink Shared Channel (PUSCH) of the same terminal. Different PUSCH transmissions may be configured with independent transmission parameters such as beams, precoding matrix, number of layers, etc. The scheduled PUSCH transmissions may be transmitted in the same time slot or different time slots. If the terminal is scheduled two PUSCH transmissions simultaneously in the same time slot, it needs to determine how to transmit according to its own capability. If the terminal is configured with multiple antenna panels (panels) and supports simultaneous transmission of the PUSCHs on multiple panels, the two PUSCHs can be transmitted simultaneously, and the PUSCHs transmitted on different panels are subjected to analog beamforming aiming at corresponding TRPs, so that different PUSCHs are distinguished by a spatial domain, and uplink spectral efficiency is provided (as shown in fig. 5-1). If the terminal has only a single panel, or does not support simultaneous transmission of multiple panels, the PUSCH can be transmitted on only one panel (as shown in fig. 5-2). The DCI for scheduling the PUSCH transmitted by different TRPs may be carried by different CORESET or CORESET groups, that is, a plurality of CORESET or CORESET groups are configured on the network side, and each TRP is scheduled by using a respective CORESET or CORESET group.

Signal scrambling

In the NR system, the scrambling sequence employed for each channel/signal is as follows:

1)PDSCH

scrambling sequence c of PDSCH^(q)(i) Is a pseudo-random sequence, in particular a Gold sequence of length 31, the output sequence c (n) has length M_PN，n＝0,1,…,M _PN-1 byDefining:

c(n)＝(x ₁(n+N _C)+x ₂(n+N _C))mod 2

x ₁(n+31)＝(x ₁(n+3)+x ₁(n))mod 2

x ₂(n+31)＝(x ₂(n+3)+x ₂(n+2)+x ₂(n+1)+x ₂(n))mod 2

wherein N is_C1600, the first m-sequence x₁(n) by x₁(0)＝1,x ₁The initialization is performed by (n) ═ 0, n ═ 1, 2. Initialization value x of the second m-sequence₂(n) is prepared from

To obtain wherein c_initAccording to the application scene of the sequence. Specifically, for the PDSCH, its initialization value c_initObtained by the following method:

c _init＝n _RNTI·2 ¹⁵+q·2 ¹⁴+n _ID

wherein q is {0,1} is an index of the current codeword, and when Cyclic Redundancy Check (CRC) of the PDCCH Scheduling the PDSCH employs Cell-Radio Network Temporary Identity (C-RNTI), or Modulation Coding mode Cell-Radio Network Temporary Identity (MCS-C-RNTI), or configures Scheduling Radio Network Temporary Identity (CS-RNTI), and when DCI format 1_0 Scheduling in CSs is not employed, n is scrambled_IDE {0, 1.,. 1023} is obtained from the high level parameters; in other cases

Where n is_RNTIIs the PDC scheduling the PDSCHCRC of CH scrambles employed RNTI.

2)PDCCH

The method for generating the scrambling sequence of the PDCCH is the same as that of the PDSCH, but the initialization value of the scrambling sequence is different from that of the PDSCH, and the initialization value of the scrambling sequence of the PDCCH is as follows:

c _init＝(n _RNTI·2 ¹⁶+n _ID)mod 2 ³¹

wherein if the PDCCH belongs to the USS, n_IDE {0, 1.., 65535} is configured by higher layer signaling, otherwise

N of PDCCH in USS if higher layer signaling configures scrambling ID of PDCCH_RNTIEqual to C-RNTI, otherwise n_RNTI＝0。

3)DMRS

A scrambling sequence generation method of a Demodulation Reference Signal (DMRS) is the same as that of the PDSCH, but the scrambling sequence initialization value is different, and the scrambling sequence initialization value of the DMRS is:

where l is an index of an OFDM symbol occupied by the DMRS in one slot,

is the slot index of the slot in which the DMRS is located in one radio frame,

is the number of OFDM symbols contained in one slot.

If PDSCH/PUSCH corresponding to DMRS is composed of DCICRC scheduled by format 0_1 or 1_1 and corresponding PDCCH is scrambled by C-RNTI, or MCS-C-RNTI or CS-RNTI, and scramblingID0 and scramblingID1 are configured as high-level parameters, then

Determined by these two higher layer parameters.

If the PDSCH/PUSCH corresponding to the DMRS is scheduled by the DCI format 0_0 or 1_0, the CRC of the corresponding PDCCH is scrambled by using C-RNTI or MCS-C-RNTI or CS-RNTI, and the scramblingID0 is configured as a high-level parameter, then

Determined by the higher layer parameters.

In the other cases, the number of the first and second cases,

if the PDSCH/PUSCH corresponding to the DMRS is scheduled by DCI format 0_1 or 1_1, then n_SCIDE {0,1} is determined by a DMRS sequence initialization indication domain in the DCI; if the PUSCH is a PUSCH transmission of type 1, then n_SCIDDetermined by high layer signaling; in other cases n_SCID＝0。

4)CSI-RS

A scrambling sequence generation method of a downlink Channel State Information-Reference Signal (CSI-RS) is the same as that of a DMRS, but an initialization value of the scrambling sequence is different, and the initialization value of the scrambling sequence of the CSI-RS is:

the initialization is performed at the beginning of each OFDM symbol, where l is the index of the OFDM symbol occupied by the CSI-RS in one slot, is

Is the time slot index of the time slot in which the CSI-RS is located in a radio frame, n_IDConfigured by higher layer parameters.

5)PUSCH

The method for generating the scrambling sequence of the PUSCH is the same as that of the PDSCH, but the initial value of the scrambling sequence is different, and the initial value of the scrambling sequence of the PUSCH is as follows:

c _init＝n _RNTI·2 ¹⁵+n _ID

when the CRC of the PDCCH for scheduling the PUSCH adopts C-RNTI (C-radio network temporary identifier), MCS-C-RNTI or CS-RNTI scrambling and does not adopt DCI format 0_0 scheduling in CSS (CSS), n_IDE {0, 1.,. 1023} is obtained from the high level parameters; in other cases

Where n is_RNTIIs an RNTI used for CRC scrambling of the PDCCH that schedules the PUSCH.

6)PUCCH

A scrambling sequence generation method of a Physical Uplink Control Channel (PUCCH) is the same as that of the PUSCH, but the scrambling sequence initialization value is different, and the scrambling sequence initialization value of the PUCCH is:

c _init＝n _RNTI·2 ¹⁵+n _ID

wherein n is_IDE {0, 1.., 1023} is derived from the higher layer parameters. If the higher layer parameter is not configured

n _RNTIEqual to the C-RNTI of the terminal.

According to the scrambling sequence generation method, signals scheduled by different TRPs adopt the same scrambling sequence initialization value, so that the same scrambling sequence can be obtained. Thus, when transmission resources of signals scheduled by different TRPs overlap, severe interference may be generated between the signals, thereby affecting transmission performance of the signals. Therefore, the following technical scheme of the embodiment of the application is provided.

Fig. 6 is a first schematic flowchart of a signal scrambling method according to an embodiment of the present application, and as shown in fig. 6, the signal scrambling method includes the following steps:

step 601: the communication device determines a scrambling sequence initialization value of a first signal according to first information, wherein the first information comprises at least one of the following: the identifier of the first CORESET, and the identifier of the CORESET group to which the first CORESET belongs.

In the embodiment of the application, the communication device is a terminal or a network device. Here, the terminal may be any device capable of communicating with a network, such as a mobile phone, a tablet computer, a notebook computer, and a vehicle-mounted terminal. The network device may be a base station, such as an NR base station (i.e., a gNB), or an LTE base station (i.e., an eNB).

In the embodiment of the present application, the identifier of the first CORESET refers to at least one of:

1) the identification of the first CORESET is an index of the first CORESET in at least one CORESET configured by the network equipment;

2) the identification of the first CORESET is a CORESET identification (CORESET ID) contained in the configuration parameters of the first CORESET.

In this embodiment of the present application, the identifier of the core set to which the first core set belongs refers to at least one of the following:

1) the identification of the CORESET group to which the first CORESET belongs is an index of the CORESET group in at least one CORESET group configured by the network equipment;

2) the identification of the CORESET Group to which the first CORESET belongs is a CORESET Group identification (CORESET Group ID) contained in the configuration parameters of the first CORESET;

3) the identifier of the CORESET Group to which the first CORESET belongs is a CORESET Group identifier (CORESET Group ID) contained in the configuration parameters of the CORESET Group.

In this embodiment, the communication device may determine the scrambling sequence initialization value of the first signal by any one of the following manners:

the first method is as follows: the communication device determines a scrambling sequence initialization value of the first signal based on the identity of the first CORESET.

The second method comprises the following steps: and the communication equipment determines the scrambling sequence initialization value of the first signal according to the identification of the CORESET group to which the first CORESET belongs.

The third method comprises the following steps: and the communication equipment determines the scrambling sequence initialization value of the first signal according to the identification of the first CORESET and the identification of the CORESET group to which the first CORESET belongs.

In the above scheme, the first CORESET and the first signal have an association relationship. The association and how to determine the scrambling sequence initialization value of the first signal are explained below with different implementations of the first signal.

A) The first signal is a PDCCH, and the association relationship is that the first CORESET is used for transmitting the PDCCH. In an embodiment, the communication device is a terminal device, the terminal device detects DCI in the first CORESET or a search space associated with the first CORESET, and the first signal is a PDCCH carrying the DCI.

Correspondingly, the communication device determines the scrambling sequence initialization value of the first signal according to the first information as follows:

c _init＝(n _RNTI·2 ^m+n _CORESET·2 ^k+n _ID)mod 2 ³¹

wherein m and k are integers; n is_RNTIEqual to the cell radio network temporary identity C-RNTI or 0; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling

In one embodiment, m is an integer greater than 15 and k is an integer greater than 0 and less than 17.

B) The first signal is a PDSCH, and the association relationship is that the first CORESET is used for transmitting a PDCCH for scheduling the PDSCH. In an embodiment, the communication device is a terminal device, the terminal device detects DCI for scheduling a PDSCH in the first CORESET or a search space associated with the first CORESET, and the first signal is a PDSCH scheduled by the DCI.

c _init＝n _RNTI·2 ¹⁵+q·2 ¹⁴+n _CORESET·2 ^k+n _ID

wherein k is an integer; n is_RNTIIs an RNTI employed for scheduling CRC scrambling of the PDCCH of the PDSCH; q is the index of the codeword; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling

In one embodiment, k is an integer greater than 9 and less than 14.

C) The first signal is a PUSCH, and the association relationship is that the first CORESET is used for transmitting and scheduling a PDCCH of the PUSCH. In one embodiment, the communication device is a terminal device, the terminal device detects DCI for scheduling PUSCH in the first CORESET or a search space associated with the first CORESET, and the first signal is a PUSCH scheduled by the DCI.

c _init＝n _RNTI·2 ¹⁵+n _CORESET·2 ^k+n _ID

wherein k is an integer; n is_RNTIIs an RNTI employed for scheduling CRC scrambling of the PDCCH of the PUSCH; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling

In one embodiment, k is an integer greater than 9 and less than 15.

D) The first signal is a DMRS, and the association relationship is that the first CORESET is used for transmitting a PDCCH for scheduling a PDSCH corresponding to the DMRS. In an embodiment, the communication device is a terminal device, the terminal device detects DCI for scheduling a PDSCH or a PUSCH in the first CORESET or a search space associated with the first CORESET, and the first signal is a DMRS of the PDSCH or PUSCH scheduled by the DCI.

wherein m and k are integers; l is an index of an OFDM symbol occupied by the DMRS in one slot,

the time slot index of the time slot in which the DMRS is positioned in a radio frame;

is the number of OFDM symbols contained in one slot;

configuration or equalisation of cell identity by higher layer signalling

n _CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_SCIDConfigured by higher layer signaling or equal to 0.

In one embodiment, m is an integer greater than 16 and k is an integer greater than 1 and less than 18.

E) The first signal is CSI-RS, and the association relationship is that the first CORESET is used for transmitting PDCCH triggering the CSI-RS. In an embodiment, the communication device is a terminal device, the terminal device detects DCI triggering aperiodic CSI-RS transmission in the first CORESET or a search space associated with the first CORESET, and the first signal is an aperiodic CSI-RS triggered by the DCI. In one example, the CSI-RS may be an aperiodic CSI-RS or a quasi-persistent CSI-RS.

wherein m and k are integers; l is an index of an OFDM symbol occupied by the CSI-RS in one slot,

the time slot index of the time slot where the CSI-RS is located in a radio frame;

is an OFDM symbol contained in a slotThe number of (2); n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfigured by higher layer signaling.

In one embodiment, m is an integer greater than 9 and k is an integer greater than 0 and less than 11.

F) The first CORESET is the CORESET configured by the network equipment and associated with the first signal, or the first CORESET is the CORESET in the CORESET group configured by the network equipment and associated with the first signal. Further, the first signal is a PUCCH, and the correlation relationship is a correlated CORESET configured for the PUCCH by the network device or a CORESET in a correlated CORESET group. Correspondingly, the communication device determines the scrambling sequence initialization value of the first signal according to the first information as follows:

c _init＝n _RNTI·2 ¹⁵+n _CORESET·2 ^k+n _ID

wherein k is an integer; n is_RNTIEqual to C-RNTI; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling

In one embodiment, k is an integer greater than 9 and less than 15.

G) The first signal is a PUCCH, and the association relationship is that the PUCCH is used to carry Hybrid Automatic Repeat reQuest-Acknowledgement (HARQ-ACK) Information of a PDSCH scheduled by a PDCCH transmitted in the first CORESET, or the PUCCH is used to carry Channel State Information (CSI) report triggered by the PDCCH transmitted in the first CORESET. Correspondingly, the communication device determines the scrambling sequence initialization value of the first signal according to the first information as follows:

c _init＝n _RNTI·2 ¹⁵+n _CORESET·2 ^k+n _ID

In one embodiment, k is an integer greater than 9 and less than 15.

Step 602: and the communication equipment determines the scrambling sequence of the first signal according to the scrambling sequence initialization value.

In this embodiment of the application, after the scrambling sequence initialization value of the first signal is obtained in step 601, the scrambling sequence of the first signal may be generated according to the scrambling sequence initialization value, and a method for generating the scrambling sequence of the first signal may be understood with reference to the method for generating the scrambling sequence of the PDSCH, which is not described herein again.

In this embodiment, after the communication device generates the scrambling sequence of the first signal, the communication device may transmit or detect the first signal according to the scrambling sequence. For example, the communication device transmits the first signal after scrambling the first signal with the scrambling sequence. As another example, the communication device utilizes the scrambling sequence to detect (i.e., descramble) the received first signal.

In the technical scheme of the embodiment of the application, the communication equipment obtains the initialization value of the scrambling sequence of the PDCCH or the data channel or the reference signal scheduled by the PDCCH according to the CORESET identifier or the CORESET group identifier where the PDCCH is located, thereby determining the scrambling sequence of the PDCCH or the data channel or the reference signal and detecting the corresponding signal. Based on the technical scheme of the embodiment of the application, when the signals of different TRP/panel are scheduled through different CORESET or CORESET groups, the adopted scrambling sequences are different, so that the effect of interference randomization can be achieved when the transmission resources of the signals are overlapped, and the transmission performance of the signals is improved.

Fig. 7 is a second flowchart of a signal scrambling method according to an embodiment of the present application, and as shown in fig. 7, the signal scrambling method includes the following steps:

step 701: the network equipment configures a plurality of CORESETs for the terminal in advance through high-level signaling.

Optionally, the network device pre-configures at least one CORESET group corresponding to the multiple CORESETs for the terminal.

For example, the network device configures a plurality of CORESET through RRC signaling, and configures a CORESET Group identification (Group ID) for each CORESET to identify the CORESET Group to which the CORESET belongs. If the group identifications of two CORESETs are the same, the two CORESETs are considered to belong to the same CORESET group. If the group identifications of the two CORESETs are different, the two CORESETs are considered to belong to different CORESET groups.

Alternatively, the network device may configure a plurality of CORESET groups for the terminal through RRC signaling or MAC signaling, where each CORESET group includes one or more CORESET configurations or one or more CORESET IDs of the CORESET.

Step 702: and the network equipment or the terminal determines the initial value of the scrambling sequence of the first signal according to the CORESET ID of the first CORESET in the CORESETs or the CORESET Group ID of the CORESET Group to which the first CORESET belongs.

Mode 1: if the first signal is the PDCCH, the network equipment or the terminal determines the scrambling sequence initialization value of the first signal according to the CORESET ID of the first CORESET transmitting the first signal or the CORESET Group ID of the CORESET Group to which the first CORESET belongs.

I) For example, the scrambling sequence initialization value of the PDCCH is:

c _init＝(n _RNTI·2 ^m+n _CORESET·2 ^k+n _ID)mod 2 ³¹

wherein m and k are integers of 16 or more, and n_CORESETIs the first CORESETOr the core set Group ID of the core set to which the first core set belongs. Typically, m is 17 or 18 or 19 and k is 16.

If higher layer signaling configures the scrambling ID of PDCCH (i.e. n)_ID) N of PDCCH in USS_RNTIEqual to C-RNTI, otherwise n_RNTI＝0。

The advantage of using this method is that n_RNTI，n _CORESETAnd n_IDThe obtained scrambling sequence initialization value is generally different as long as one parameter is different, so that different scrambling sequences are generated, and interference randomization between different PDCCH transmissions is ensured. Meanwhile, the existing high-level configuration parameters do not need to be modified.

II) for example, the scrambling sequence initialization value of the PDCCH is:

c _init＝(n _RNTI·2 ¹⁶+n _CORESET·2 ^k+n _ID)mod 2 ³¹

wherein k is an integer less than 16, n_CORESETIs the core ID of the first core set or the core set Group ID of the core set to which the first core set belongs. Typically, k is 15 or 14 or 13.

Wherein if the PDCCH belongs to the USS, n_IDE {0,1, …, N-1} is configured by higher layer signaling, otherwise

Wherein N is 2^k. If higher layer signaling configures the scrambling ID of PDCCH (i.e. n)_ID) N adopted by PDCCH in USS_RNTIEqual to C-RNTI, otherwise n_RNTI＝0。

The advantage of using this method is that n_RNTI，n _CORESETAnd n_IDThe obtained scrambling sequence initialization value is generally different as long as one parameter is different, so that different scrambling sequences are generated, and interference randomization between different PDCCH transmissions is ensured. Meanwhile, the method reduces the probability of PDCCH scrambling sequence collision by reducing the configuration of high-level signaling.

It should be noted that the PDCCH is used to carry DCI, and therefore the description of the PDCCH may be replaced by DCI.

Mode 2: if the first signal is a PDSCH or a PUSCH or a DMRS, the network device or the terminal determines the scrambling sequence initialization value of the first signal according to the CORESET ID of the first CORESET where the PDCCH for scheduling the first signal is located or the CORESET Group ID of the CORESET Group to which the first CORESET belongs.

I) For example, if the first signal is PDSCH, the scrambling sequence initialization value is:

c _init＝n _RNTI·2 ¹⁵+q·2 ¹⁴+n _CORESET·2 ^k+n _ID

wherein k is an integer of more than 9 and less than 14, and n_CORESETIs the core ID of the first core set or the core set Group ID of the core set to which the first core set belongs. Typically, k has a value of 10 or 13.

Wherein q is {0,1} is an index of a codeword carried by the current PDSCH, and when CRC of a PDCCH for scheduling the PDSCH adopts C-RNTI or MCS-C-RNTI or CS-RNTI scrambling and does not adopt DCI format 1_0 scheduling in CSS, n is_IDE {0, 1.,. 1023} is obtained from the high level parameters; in other cases

Here, n is_RNTIIs an RNTI employed for CRC scrambling of a PDCCH that schedules the PDSCH.

The advantage of using this method is that n_RNTI，n _CORESETAnd n_IDThe obtained scrambling sequence initialization value is different as long as one parameter is different, so that different scrambling sequences are generated, and interference randomization between different PDSCH transmissions is guaranteed.

II) for example, if the first signal is PUSCH, the scrambling sequence initialization value is:

c _init＝n _RNTI·2 ¹⁵+n _CORESET·2 ^k+n _ID

wherein k is an integer of more than 9 and less than 15, and n_CORESETIs the core ID of the first core set or the core set Group ID of the core set to which the first core set belongs. Typically, k has a value of 10 or 14.

Here, n is_RNTIIs an RNTI used for CRC scrambling of the PDCCH that schedules the PUSCH.

The advantage of using this method is that n_RNTI，n _CORESETAnd n_IDThe obtained scrambling sequence initialization value is different as long as one parameter is different, so that different scrambling sequences are generated, and interference randomization between different PUSCH transmissions is ensured.

III), for example, if the first signal is the DMRS, the PDCCH for scheduling the DMRS is the PDCCH for scheduling the PDSCH corresponding to the DMRS. At this time, the scrambling sequence initialization value is:

wherein m and k are integers greater than 16Number, n_CORESETIs the core ID of the first core set or the core set Group ID of the core set to which the first core set belongs. Typically, k has a value of 17 and m has a value of 17 or 18 or 19 or 20.

Where l is an index of an OFDM symbol occupied by the DMRS in one slot,

is the slot index of the slot in which the DMRS is located in one radio frame,

is the number of OFDM symbols contained in one slot.

If the PDSCH/PUSCH corresponding to the DMRS is scheduled by the DCI format 0_1 or 1_1, the CRC of the corresponding PDCCH is scrambled by using C-RNTI, MCS-C-RNTI or CS-RNTI, and the scramblingID0 and scramblingID1 are configured as high-layer parameters, then the method for scheduling the PDSCH/PUSCH corresponding to the DMRS is used for solving the problem that the PDCCH is not scheduled by the DCI format 0_1 or 1_1

Determined by these two higher layer parameters.

Determined by the higher layer parameters.

In the other cases, the number of the first and second cases,

if the PDSCH/PUSCH corresponding to the DMRS is scheduled by DCI format 0_1 or 1_1, then n_SCIDE {0,1} is determined by a DMRS sequence initialization indication domain in the DCI;if the PUSCH is a PUSCH transmission of type 1, then n_SCIDDetermined by high layer signaling; in other cases n_SCID＝0。

The method has the advantages that

n _CORESETAnd n_SCIDThe obtained scrambling sequence initialization values are generally different as long as one parameter is different, so that different scrambling sequences are generated, and interference randomization between different DMRS transmissions is ensured. Meanwhile, the existing high-level configuration parameters do not need to be modified.

IV), for example, if the first signal is the DMRS, the PDCCH for scheduling the DMRS is the PDCCH for scheduling the PDSCH corresponding to the DMRS. At this time, the scrambling sequence initialization value is:

wherein k is an integer greater than 0 and less than 18, n_CORESETIs the core ID of the first core set or the core set Group ID of the core set to which the first core set belongs. Typically, k has a value of 15 or 16.

Where l is an index of an OFDM symbol occupied by the DMRS in one slot,

is the slot index of the slot in which the DMRS is located in one radio frame,

is the number of OFDM symbols contained in one slot.

If the PDSCH/PUSCH corresponding to the DMRS is scheduled by the DCI format 0_1 or 1_1 and the CRC of the corresponding PDCCH adopts C-RNTI or MCS-C-RNTI or CS-RNTI scramblingAnd the higher layer parameter is configured with scramblingID0 and scramblingID1, then

Determined by these two higher layer parameters.

Determined by the higher layer parameters.

In the other cases, the number of the first and second cases,

The method has the advantages that

n _CORESETAnd n_SCIDThe obtained scrambling sequence initialization values are generally different as long as one parameter is different, so that different scrambling sequences are generated, and interference randomization between different DMRS transmissions is ensured. Meanwhile, the method reduces the probability of DMRS scrambling sequence conflict by reducing the high-level signaling configuration.

Mode 3: if the first signal is a CSI-RS or an SRS, the network equipment or the terminal determines the initial value of the scrambling sequence of the first signal according to the CORESET ID of the first CORESET where the PDCCH triggering the transmission of the first signal is located or the CORESET Group ID of the CORESET Group to which the first CORESET belongs. The CSI-RS in the embodiments of the present application may be an aperiodic CSI-RS or a quasi-persistent CSI-RS, and the SRS may be an aperiodic SRS or a quasi-persistent SRS.

It should be noted that, in the embodiment of the present application, the PDCCH for scheduling the first signal and the PDCCH for triggering the first signal are equivalent, and both the PDCCH is used to schedule transmission of the first signal.

I) For example, if the first signal is CSI-RS, the scrambling sequence initialization value is:

wherein k is an integer greater than 9, m is an integer greater than k, n_CORESETIs the core ID of the first core set or the core set Group ID of the core set to which the first core set belongs. Typically, k has a value of 10 and m has a value of 11, 12 or 13.

Wherein l is an index of an OFDM symbol occupied by the CSI-RS in one slot,

is the slot index of the slot in which the CSI-RS is located in a radio frame,

is the number of OFDM symbols contained in a slot, n_IDConfigured by higher layer parameters.

The advantage of using this method is that n_CORESETAnd n_IDThe obtained scrambling sequence initialization value is different as long as one parameter is different, so that different scrambling sequences are generated, and different CSI-RS (channel state information-reference signal) transmissions are ensuredRandomization of the interference between. Meanwhile, the existing high-level configuration parameters do not need to be modified.

II) for example, if the first signal is CSI-RS, the scrambling sequence initialization value is:

wherein k is an integer greater than 0 and less than 11, n_CORESETIs the core ID of the first core set or the core set Group ID of the core set to which the first core set belongs. Typically, k has a value of 9 or 8.

Wherein l is an index of an OFDM symbol occupied by the CSI-RS in one slot,

is the slot index of the slot in which the CSI-RS is located in a radio frame,

The advantage of using this method is that n_CORESETAnd n_IDAs long as one parameter is different, the obtained scrambling sequence initialization value is different, so that different scrambling sequences are generated, and interference randomization between different CSI-RS transmissions is ensured. Meanwhile, the method reduces the probability of CSI-RS scrambling sequence conflict by reducing the configuration of high-level signaling.

Mode 4: if the first signal is a PUCCH, the network equipment or the terminal determines a scrambling sequence initialization value of the first signal according to a CORESET ID of a first CORESET where the first PDCCH is located or a CORESET Group ID of a CORESET Group to which the first CORESET belongs, wherein the first PDDCH is used for scheduling a PDSCH corresponding to HARQ-ACK information carried by the PUCCH. That is, the PUCCH is used to carry HARQ-ACK information corresponding to the PDSCH scheduled by the PDCCH transmitted in the first CORESET. The scrambling sequence initialization value is:

c _init＝n _RNTI·2 ¹⁵+n _CORESET·2 ^k+n _ID

wherein k is an integer of more than 9 and less than 15, and n_CORESETIs the core ID of the first core set or the core set Group ID of the core set to which the first core set belongs. Typically, k has a value of 10 or 13 or 14. Wherein n is_IDE {0, 1.., 1023} is derived from the higher layer parameters. If the higher layer parameter is not configured

n _RNTIEqual to the C-RNTI of the terminal.

Mode 5: if the first signal is the PUCCH, the network equipment or the terminal determines the scrambling sequence initialization value of the first signal according to the CORESET ID of the first CORESET where the PDCCH which triggers the CSI carried by the PUCCH is located or the CORESET Group ID of the CORESET Group to which the first CORESET belongs. That is, the PUCCH is used to carry quasi-persistent or aperiodic CSI reporting triggered by the PDCCH in the first CORESET. The scrambling sequence initialization value is:

c _init＝n _RNTI·2 ¹⁵+n _CORESET·2 ^k+n _ID

n _RNTIEqual to the C-RNTI of the terminal.

Mode 6: the network device or the terminal determines a scrambling sequence initialization value of the first signal according to a CORESET ID of the first CORESET or a CORESET Group ID of a CORESET Group to which the first CORESET belongs, wherein the network device configures related CORESET for the first signal in advance as the first CORESET, or the network device configures related CORESET Group for the first signal in advance, and the first CORESET is the CORESET in the CORESET Group.

Specifically, the network device may configure an associated CORESET or CORESET group for each first signal, or may configure an associated CORESET or CORESET group for each set of first signals.

In an embodiment, the first signal is a PUCCH, and the first core set is an associated core set previously configured for the PUCCH by the network device, or a core set in an associated core set previously configured for the PUCCH by the network device. For example, the network device may configure multiple PUCCH parameter sets (by higher layer parameter PUCCH-config), and then configure associated CORESET ID or CORESET Group ID for each PUCCH parameter set, thereby causing the terminal to determine the CORESET or CORESET Group associated with each PUCCH parameter set. The core or core set associated with the PUCCH configured by a PUCCH parameter set is the core or core set associated with the PUCCH configured parameter set.

In the embodiment of the present application, the CORESET ID may have two configuration modes:

a) the CORESET ID is an index of CORESET in at least one CORESET configured by the network equipment. For example, if the network device is configured with 3 CORESET, the corresponding index (i.e., CORESET ID) is {0,1,2 }.

b) The CORESET ID is a CORESET ID included in configuration parameters of a CORESET (for example, an ID indicated by a higher layer parameter controlResourceSetId). For example, the network device is configured with 4 CORESET, and the CORESET ID configured in each CORESET is {4,2,3,1}, respectively.

In the embodiment of the present application, the CORESET Group ID may have three configuration modes:

a) the CORESET Group ID is an index of a CORESET Group in at least one CORESET Group configured by the network equipment. For example, if the network device configures 3 CORESET groups, the corresponding index (i.e., CORESET Group ID) is {0,1,2 }.

b) The CORESET Group ID is the CORESET Group ID contained in the configuration parameters of the CORESET. For example, the network device configures 3 CORESET groups and 2 CORESET groups, and the CORESET Group ID configured in each CORESET Group is {1,0,0}, respectively.

c) The CORESET Group ID is the CORESET Group ID contained in the configuration parameters of a CORESET Group. For example, the network device configures 2 CORESET groups, and the CORESET Group IDs configured in each CORESET Group are {1,2}, respectively. Wherein, the configuration parameters of each CORESET group further comprise at least one CORESET.

Step 703: and the network equipment or the terminal generates the scrambling sequence of the first signal according to the scrambling sequence initialization value of the first signal.

Here, the method for generating the scrambling sequence of the first signal may be understood with reference to the method for generating the scrambling sequence of the PDSCH, and will not be described herein again.

Step 704: and the network equipment or the terminal sends or detects the first signal according to the scrambling sequence.

Specifically, the network device or the terminal scrambles the first signal by using the scrambling sequence, so as to send the scrambled first signal; or, the network device or the terminal descrambles the received first signal according to the scrambling sequence, so as to detect the first signal.

Fig. 8 is a schematic structural component diagram of a signal scrambling apparatus provided in an embodiment of the present application, where the signal scrambling apparatus is applied to a communication device, and the apparatus includes:

a first determining unit 801, configured to determine a scrambling sequence initialization value of a first signal according to first information, where the first information includes at least one of: the identifier of the first CORESET, and the identifier of the CORESET group to which the first CORESET belongs;

a second determining unit 802, configured to determine a scrambling sequence of the first signal according to the scrambling sequence initialization value.

In an embodiment, the first signal is a PDCCH, and the first core set is used for transmitting the PDCCH;

the first determining unit 801 is configured to determine, according to the first information, that the scrambling sequence initialization value of the first signal is:

c _init＝(n _RNTI·2 ^m+n _CORESET·2 ^k+n _ID)mod 2 ³¹

Further, m is an integer greater than 15, and k is an integer greater than 0 and less than 17.

In an embodiment, the first signal is a PDSCH, and the first core set is used to transmit a PDCCH for scheduling the PDSCH;

c _init＝n _RNTI·2 ¹⁵+q·2 ¹⁴+n _CORESET·2 ^k+n _ID

wherein k is an integer; n is_RNTIIs an RNT employed for cyclic redundancy check, CRC, scrambling of a PDCCH scheduling the PDSCHI; q is the index of the codeword; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling

Further, k is an integer of more than 9 and less than 14.

In an embodiment, the first signal is a PUSCH, and the first core set is used to transmit a PDCCH for scheduling the PUSCH;

c _init＝n _RNTI·2 ¹⁵+n _CORESET·2 ^k+n _ID

Further, k is an integer of more than 9 and less than 15.

In an embodiment, the first signal is a DMRS, and the first CORESET is used to transmit a PDCCH for scheduling a PDSCH corresponding to the DMRS;

wherein m and k are integers; l is the occupation of the DMRS in one slotThe index of the OFDM symbol used is,

is the number of OFDM symbols contained in one slot;

configuration or equalisation of cell identity by higher layer signalling

n _CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_SCIDConfigured by higher layer signaling or equal to 0. Further, m is an integer greater than 16, and k is an integer greater than 1 and less than 18.

In an embodiment, the first signal is a CSI-RS, and the first core set is configured to transmit a PDCCH triggering the CSI-RS;

is the number of OFDM symbols contained in one slot; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfigured by higher layer signaling. Further, m is an integer greater than 9, and k is an integer greater than 0 and less than 11.

In an embodiment, the first CORESET is a CORESET configured by a network device and associated with the first signal, or the first CORESET is a CORESET in a CORESET configured by a network device and associated with the first signal. Further, the first signal is a PUCCH, and the first CORESET is associated CORESET configured for the PUCCH by the network device or CORESET in an associated CORESET group.

In an embodiment, the first signal is a PUCCH, and the PUCCH is used to carry HARQ-ACK information of a PDSCH scheduled by the PDCCH transmitted in the first CORESET, or the PUCCH is used to carry CSI report triggered by the PDCCH transmitted in the first CORESET.

In an embodiment, the first determining unit 801 is configured to determine, according to the first information, that the scrambling sequence initialization value of the first signal is:

c _init＝n _RNTI·2 ¹⁵+n _CORESET·2 ^k+n _ID

Further, k is an integer of more than 9 and less than 15.

In one embodiment, the identifier of the first CORESET is an index of the first CORESET in at least one CORESET configured by a network device; and/or the presence of a gas in the gas,

the identification of the first CORESET is the CORESET identification contained in the configuration parameters of the first CORESET.

In one embodiment, the identifier of the CORESET group to which the first CORESET belongs is an index of the CORESET group in at least one CORESET group configured by the network device; and/or the presence of a gas in the gas,

the identification of the CORESET group to which the first CORESET belongs is the CORESET group identification contained in the configuration parameters of the first CORESET; and/or the presence of a gas in the gas,

the identification of the CORESET group to which the first CORESET belongs is the CORESET group identification contained in the configuration parameters of the CORESET group.

In one embodiment, the communication device is a terminal or a network device.

It should be understood by those skilled in the art that the related description of the above signal scrambling apparatus of the embodiments of the present application can be understood by referring to the related description of the signal scrambling method of the embodiments of the present application.

Fig. 9 is a schematic structural diagram of a communication device 900 according to an embodiment of the present application. The communication device may be a terminal or a network device, and the communication device 900 shown in fig. 9 includes a processor 910, and the processor 910 may call and execute a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 9, the communication device 900 may also include a memory 920. From the memory 920, the processor 910 may call and execute a computer program to implement the method in the embodiment of the present application.

The memory 920 may be a separate device from the processor 910, or may be integrated in the processor 910.

Optionally, as shown in fig. 9, the communication device 900 may further include a transceiver 930, and the processor 910 may control the transceiver 930 to communicate with other devices, and specifically, may transmit information or data to the other devices or receive information or data transmitted by the other devices.

The transceiver 930 may include a transmitter and a receiver, among others. The transceiver 930 may further include one or more antennas.

Optionally, the communication device 900 may specifically be a network device in this embodiment, and the communication device 900 may implement a corresponding process implemented by the network device in each method in this embodiment, which is not described herein again for brevity.

Optionally, the communication device 900 may specifically be a mobile terminal/terminal according to this embodiment, and the communication device 900 may implement a corresponding process implemented by the mobile terminal/terminal in each method according to this embodiment, which is not described herein again for brevity.

Fig. 10 is a schematic structural diagram of a chip of an embodiment of the present application. The chip 1000 shown in fig. 10 includes a processor 1010, and the processor 1010 may call and run a computer program from a memory to implement the method in the embodiment of the present application.

Optionally, as shown in fig. 10, the chip 1000 may further include a memory 1020. From the memory 1020, the processor 1010 may call and execute a computer program to implement the method in the embodiment of the present application.

The memory 1020 may be a separate device from the processor 1010 or may be integrated into the processor 1010.

Optionally, the chip 1000 may further include an input interface 1030. The processor 1010 may control the input interface 1030 to communicate with other devices or chips, and specifically may obtain information or data transmitted by the other devices or chips.

Optionally, the chip 1000 may further include an output interface 1040. The processor 1010 may control the output interface 1040 to communicate with other devices or chips, and may particularly output information or data to the other devices or chips.

Optionally, the chip may be applied to the network device in the embodiment of the present application, and the chip may implement the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the chip may be applied to the mobile terminal/terminal in the embodiment of the present application, and the chip may implement a corresponding process implemented by the mobile terminal/terminal in each method in the embodiment of the present application, and for brevity, no further description is given here.

It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.

Fig. 11 is a schematic block diagram of a communication system 1100 provided in an embodiment of the present application. As shown in fig. 11, the communication system 1100 includes a terminal 1110 and a network device 1120.

The terminal 1110 may be configured to implement the corresponding functions implemented by the terminal in the foregoing methods, and the network device 1120 may be configured to implement the corresponding functions implemented by the network device in the foregoing methods, which is not described herein for brevity.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

It should be understood that the above memories are exemplary but not limiting illustrations, for example, the memories in the embodiments of the present application may also be Static Random Access Memory (SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous Dynamic Random Access Memory (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (enhanced SDRAM, ESDRAM), Synchronous Link DRAM (SLDRAM), Direct Rambus RAM (DR RAM), and the like. That is, the memory in the embodiments of the present application is intended to comprise, without being limited to, these and any other suitable types of memory.

The embodiment of the application also provides a computer readable storage medium for storing the computer program.

Optionally, the computer-readable storage medium may be applied to the network device in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, which is not described herein again for brevity.

Optionally, the computer-readable storage medium may be applied to the mobile terminal/terminal in the embodiment of the present application, and the computer program enables the computer to execute the corresponding process implemented by the mobile terminal/terminal in each method in the embodiment of the present application, which is not described herein again for brevity.

Embodiments of the present application also provide a computer program product comprising computer program instructions.

Optionally, the computer program product may be applied to the network device in the embodiment of the present application, and the computer program instructions enable the computer to execute corresponding processes implemented by the network device in the methods in the embodiment of the present application, which are not described herein again for brevity.

Optionally, the computer program product may be applied to the mobile terminal/terminal in the embodiment of the present application, and the computer program instructions enable the computer to execute the corresponding processes implemented by the mobile terminal/terminal in the methods in the embodiment of the present application, which are not described herein again for brevity.

The embodiment of the application also provides a computer program.

Optionally, the computer program may be applied to the network device in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the network device in each method in the embodiment of the present application, and for brevity, details are not described here again.

Optionally, the computer program may be applied to the mobile terminal/terminal in the embodiment of the present application, and when the computer program runs on a computer, the computer is enabled to execute the corresponding process implemented by the mobile terminal/terminal in each method in the embodiment of the present application, which is not described herein again for brevity.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

A method of scrambling a signal, the method comprising:

the communication device determines a scrambling sequence initialization value of a first signal according to first information, wherein the first information comprises at least one of the following: the identification of a first control resource set CORESET, and the identification of a CORESET group to which the first CORESET belongs;

and the communication equipment determines the scrambling sequence of the first signal according to the scrambling sequence initialization value.
The method of claim 1, wherein the first signal is a Physical Downlink Control Channel (PDCCH), and the first CORESET is used for transmitting the PDCCH;

the communication device determines a scrambling sequence initialization value of a first signal according to first information, comprising:

the communication device determines the scrambling sequence initialization value of the first signal according to the first information as follows:

c _init＝(n _RNTI·2 ^m+n _CORESET·2 ^k+n _ID)mod 2 ³¹

wherein m and k are integers; n is_RNTIEqual to the cell radio network temporary identity C-RNTI or 0; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling
The method of claim 2, wherein m is an integer greater than 15 and k is an integer greater than 0 and less than 17.
The method of claim 1, wherein the first signal is a Physical Downlink Shared Channel (PDSCH), and the first CORESET is used for transmitting a PDCCH for scheduling the PDSCH;

the communication device determines a scrambling sequence initialization value of a first signal according to first information, comprising:

the communication device determines the scrambling sequence initialization value of the first signal according to the first information as follows:

c _init＝n _RNTI·2 ¹⁵+q·2 ¹⁴+n _CORESET·2 ^k+n _ID

wherein k is an integer; n is_RNTIIs a cyclic redundancy check of a PDCCH scheduling the PDSCHRNTI adopted by CRC scrambling; q is the index of the codeword; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling
The method of claim 4, wherein k is an integer greater than 9 and less than 14.
The method of claim 1, wherein the first signal is a Physical Uplink Shared Channel (PUSCH), and the first CORESET is used for transmitting a PDCCH for scheduling the PUSCH;

the communication device determines a scrambling sequence initialization value of a first signal according to first information, comprising:

the communication device determines the scrambling sequence initialization value of the first signal according to the first information as follows:

c _init＝n _RNTI·2 ¹⁵+n _CORESET·2 ^k+n _ID

wherein k is an integer; n is_RNTIIs an RNTI employed for scheduling CRC scrambling of the PDCCH of the PUSCH; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling
The method of claim 1, wherein the first signal is a demodulation reference signal (DMRS), and the first CORESET is used for transmitting a PDCCH for scheduling a PDSCH corresponding to the DMRS;

the communication device determines a scrambling sequence initialization value of a first signal according to first information, comprising:

the communication device determines the scrambling sequence initialization value of the first signal according to the first information as follows:

wherein m and k are integers; l is an index of an OFDM symbol occupied by the DMRS in one slot,
the time slot index of the time slot in which the DMRS is positioned in a radio frame;
is the number of OFDM symbols contained in one slot;
configuration or equalisation of cell identity by higher layer signalling
n _CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_SCIDConfigured by higher layer signaling or equal to 0.
The method of claim 7, wherein m is an integer greater than 16 and k is an integer greater than 1 and less than 18.
The method of claim 1, wherein the first signal is a channel state information reference signal (CSI-RS), and the first CORESET is used for transmitting a Physical Downlink Control Channel (PDCCH) triggering the CSI-RS;

the communication device determines a scrambling sequence initialization value of a first signal according to first information, comprising:

the communication device determines the scrambling sequence initialization value of the first signal according to the first information as follows:

wherein m and k are integers; l is an index of an OFDM symbol occupied by the CSI-RS in one slot,
the time slot index of the time slot where the CSI-RS is located in a radio frame;
is the number of OFDM symbols contained in one slot; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfigured by higher layer signaling.
The method of claim 9, wherein m is an integer greater than 9 and k is an integer greater than 0 and less than 11.
The method of claim 1, wherein the first CORESET is a CORESET configured by a network device associated with the first signal or a CORESET in a CORESET group configured by a network device associated with the first signal.
The method of claim 11, wherein the first signal is a Physical Uplink Control Channel (PUCCH), and the first CORESET is an associated CORESET configured for the PUCCH by the network device or a CORESET in an associated CORESET group.
The method according to claim 1, wherein the first signal is a PUCCH, and the PUCCH is used to carry HARQ-ACK information for hybrid automatic repeat request for acknowledgement (HARQ-ACK) of a PDCCH scheduled PDSCH transmitted in the first CORESET, or the PUCCH is used to carry CSI report triggered by the PDCCH transmitted in the first CORESET.
The method of claim 12 or 13, wherein the communication device determining a scrambling sequence initialization value for the first signal from the first information comprises:

the communication device determines the scrambling sequence initialization value of the first signal according to the first information as follows:

c _init＝n _RNTI·2 ¹⁵+n _CORESET·2 ^k+n _ID

wherein k is an integer; n is_RNTIEqual to C-RNTI; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling
The method of claim 6 or 14, wherein k is an integer greater than 9 and less than 15.
The method of any one of claims 1 to 15,

the identification of the first CORESET is an index of the first CORESET in at least one CORESET configured by the network equipment; and/or the presence of a gas in the gas,

the identification of the first CORESET is the CORESET identification contained in the configuration parameters of the first CORESET.
The method of any one of claims 1 to 16,

the identification of the CORESET group to which the first CORESET belongs is an index of the CORESET group in at least one CORESET group configured by the network equipment; and/or the presence of a gas in the gas,

the identification of the CORESET group to which the first CORESET belongs is the CORESET group identification contained in the configuration parameters of the first CORESET; and/or the presence of a gas in the gas,

the identification of the CORESET group to which the first CORESET belongs is the CORESET group identification contained in the configuration parameters of the CORESET group.
The method of any one of claims 1 to 17, wherein the communication device is a terminal or a network device.
A signal scrambling apparatus applied to a communication device, the apparatus comprising:

a first determining unit, configured to determine a scrambling sequence initialization value of a first signal according to first information, wherein the first information includes at least one of: the identifier of the first CORESET, and the identifier of the CORESET group to which the first CORESET belongs;

a second determining unit, configured to determine a scrambling sequence of the first signal according to the scrambling sequence initialization value.
The apparatus of claim 19, wherein the first signal is PDCCH, and the first CORESET is used to transmit the PDCCH;

the first determining unit is configured to determine, according to the first information, that the scrambling sequence initialization value of the first signal is:

c _init＝(n _RNTI·2 ^m+n _CORESET·2 ^k+n _ID)mod 2 ³¹

wherein m and k are integers; n is_RNTIEqual to the cell radio network temporary identity C-RNTI or 0; n is_CORESETIs the identity or of the first CORESETAn identifier of a CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling
The apparatus of claim 20, wherein m is an integer greater than 15 and k is an integer greater than 0 and less than 17.
The apparatus of claim 19, wherein the first signal is a PDSCH, and the first CORESET is used to transmit a PDCCH scheduling the PDSCH;

the first determining unit is configured to determine, according to the first information, that the scrambling sequence initialization value of the first signal is:

c _init＝n _RNTI·2 ¹⁵+q·2 ¹⁴+n _CORESET·2 ^k+n _ID

wherein k is an integer; n is_RNTIIs an RNTI employed for cyclic redundancy check, CRC, scrambling of a PDCCH scheduling the PDSCH; q is the index of the codeword; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling
The apparatus of claim 22, wherein k is an integer greater than 9 and less than 14.
The apparatus of claim 19, wherein the first signal is a PUSCH, and the first CORESET is used to transmit a PDCCH scheduling the PUSCH;

the first determining unit is configured to determine, according to the first information, that the scrambling sequence initialization value of the first signal is:

c _init＝n _RNTI·2 ¹⁵+n _CORESET·2 ^k+n _ID

wherein k is an integer; n is_RNTIIs an RNTI employed for scheduling CRC scrambling of the PDCCH of the PUSCH; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling
The apparatus of claim 19, wherein the first signal is a DMRS, and the first CORESET is configured to transmit a PDCCH scheduling a PDSCH corresponding to the DMRS;

the first determining unit is configured to determine, according to the first information, that the scrambling sequence initialization value of the first signal is:

wherein m and k are integers; l is an index of an OFDM symbol occupied by the DMRS in one slot,
the time slot index of the time slot in which the DMRS is positioned in a radio frame;
is the number of OFDM symbols contained in one slot;
configuration or equalisation of cell identity by higher layer signalling
n _CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_SCIDConfigured by higher layer signaling or equal to 0.
The apparatus of claim 25, wherein m is an integer greater than 16 and k is an integer greater than 1 and less than 18.
The apparatus of claim 19, wherein the first signal is a CSI-RS, and the first CORESET is configured to transmit a PDCCH triggering the CSI-RS;

the first determining unit is configured to determine, according to the first information, that the scrambling sequence initialization value of the first signal is:

wherein m and k are integers; l is an index of an OFDM symbol occupied by the CSI-RS in one slot,
the time slot index of the time slot where the CSI-RS is located in a radio frame;
is the number of OFDM symbols contained in one slot; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfigured by higher layer signaling.
The apparatus of claim 27, wherein m is an integer greater than 9 and k is an integer greater than 0 and less than 11.
The apparatus of claim 19, wherein the first CORESET is a CORESET associated with the first signal configured by a network device or a CORESET of a CORESET associated with the first signal configured by a network device.
The apparatus of claim 29, wherein the first signal is a PUCCH, and the first CORESET is an associated CORESET or a CORESET of associated CORESETs configured for the PUCCH by the network device.
The apparatus of claim 19, wherein the first signal is a PUCCH, and the PUCCH is used to carry HARQ-ACK information of a PDSCH scheduled by a PDCCH transmitted in the first CORESET, or the PUCCH is used to carry CSI reporting triggered by the PDCCH transmitted in the first CORESET.
The apparatus of claim 30 or 31, wherein the first determining unit is configured to determine, according to the first information, a scrambling sequence initialization value of the first signal as:

c _init＝n _RNTI·2 ¹⁵+n _CORESET·2 ^k+n _ID

wherein k is an integer; n is_RNTIEqual to C-RNTI; n is_CORESETThe identifier of the first CORESET or the identifier of the CORESET group to which the first CORESET belongs; n is_IDConfiguration or equalisation of cell identity by higher layer signalling
The apparatus of claim 24 or 32, wherein k is an integer greater than 9 and less than 15.
The apparatus of any one of claims 19 to 33,

the identification of the first CORESET is an index of the first CORESET in at least one CORESET configured by the network equipment; and/or the presence of a gas in the gas,

the identification of the first CORESET is the CORESET identification contained in the configuration parameters of the first CORESET.
The apparatus of any one of claims 19 to 34,

the identification of the CORESET group to which the first CORESET belongs is an index of the CORESET group in at least one CORESET group configured by the network equipment; and/or the presence of a gas in the gas,

the identification of the CORESET group to which the first CORESET belongs is the CORESET group identification contained in the configuration parameters of the first CORESET; and/or the presence of a gas in the gas,

the identification of the CORESET group to which the first CORESET belongs is the CORESET group identification contained in the configuration parameters of the CORESET group.
The apparatus of any of claims 19 to 35, wherein the communication device is a terminal or a network device.
A communication device, comprising: a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 18.
A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 18.
A computer-readable storage medium storing a computer program for causing a computer to perform the method of any one of claims 1 to 18.
A computer program product comprising computer program instructions to cause a computer to perform the method of any one of claims 1 to 18.
A computer program for causing a computer to perform the method of any one of claims 1 to 18.