WO2022016342A1 - Channel scrambling method and terminal device - Google Patents

Abstract

Embodiments of the present application provide a channel scrambling method and a terminal device, which can ensure that different scrambling sequences are used for channels transmitted between a terminal device and different cells, reduce the mutual interference between these channels, and improves the performance of multi-cell cooperative transmission. The channel scrambling method comprises: a terminal device determines an initialization value of a scrambling sequence of a first channel according to a cell identity carried by a first SSB, the first SSB being used for obtaining a transmitting beam or a receiving beam of the first channel; the terminal device generates a scrambling interference of the first channel according to the initialization value of the scrambling sequence.

Description

Channel scrambling method and terminal device technical field

The embodiments of the present application relate to the field of communications, and more particularly, to a channel scrambling method and a terminal device.

Background technique

In the New Radio (NR) system, for uplink and downlink non-coherent transmission, if the upper layer does not configure a special scrambling identifier (Identity, ID) or the channel is from a common search space, the terminal device will be based on the current The cell ID of the serving cell to generate the scrambling sequence of the channel. For uplink and downlink non-coherent transmission, the coordinated multiple transmission/reception points (TRPs) can be different physical cells, that is, the user's channels may come from different cells, but the scrambling sequences of these channels are still generated at this time. Only the same cell ID of the serving cell will be used. In this case, the scrambling sequences of the channels transmitted between different cells and the same user are exactly the same, which will cause serious mutual interference, thereby affecting the performance of multi-cell cooperative transmission.

SUMMARY OF THE INVENTION

The embodiments of the present application provide a channel scrambling method and terminal device. When the upper layer does not configure a special scrambling ID or the channel comes from a common search space, the terminal device can obtain the channel according to the transmit beam or receive the channel. The SSB of the beam determines the cell ID of the cell that transmits or receives the current channel, and is used to generate the scrambling sequence of the corresponding channel, so as to ensure that the channels transmitted between the terminal device and different cells use different scrambling sequences and reduce the interference between these channels. Mutual interference, and improve the performance of multi-cell cooperative transmission.

In a first aspect, a channel scrambling method is provided, the method comprising:

The terminal device determines the initialization value of the scrambling sequence of the first channel according to the cell identifier carried by the first SSB, where the first SSB is used to obtain the transmit beam or the receive beam of the first channel;

The terminal device generates the scrambling sequence of the first channel according to the initialization value of the scrambling sequence.

In a second aspect, a terminal device is provided for executing the method in the above-mentioned first aspect.

Specifically, the terminal device includes functional modules for executing the method in the first aspect.

In a third aspect, a terminal device is provided, including a processor and a memory. The memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory to execute the method in the first aspect.

In a fourth aspect, an apparatus is provided for implementing the method in the above-mentioned first aspect.

Specifically, the apparatus includes: a processor for invoking and running a computer program from a memory, so that a device in which the apparatus is installed executes the method in the above-mentioned first aspect.

In a fifth aspect, a computer-readable storage medium is provided for storing a computer program, and the computer program causes a computer to execute the method in the above-mentioned first aspect.

In a sixth aspect, a computer program product is provided, comprising computer program instructions, the computer program instructions causing a computer to perform the method of the first aspect above.

In a seventh aspect, there is provided a computer program which, when run on a computer, causes the computer to perform the method of the above-mentioned first aspect.

Through the above technical solution, when the upper layer does not configure a special scrambling ID or the channel is from a common search space, the terminal device can determine the cell that transmits or receives the current channel according to the SSB used to obtain the transmit beam or receive beam of the channel The cell ID is used to generate the scrambling sequence of the corresponding channel, so as to ensure that the channels transmitted between the terminal equipment and different cells adopt different scrambling sequences, reduce the mutual interference between these channels, and improve the performance of multi-cell cooperative transmission.

Description of drawings

FIG. 1 is a schematic diagram of a communication system architecture to which an embodiment of the present application is applied.

FIG. 2 is a schematic diagram of a downlink non-coherent transmission provided by the present application.

FIG. 3 is a schematic diagram of an uplink non-coherent transmission provided by the present application.

FIG. 4 is a schematic diagram of a TCI state configuration of a PDSCH provided by the present application.

FIG. 5 is a schematic flowchart of a channel scrambling method provided according to an embodiment of the present application.

FIG. 6 is a schematic block diagram of a terminal device provided according to an embodiment of the present application.

FIG. 7 is a schematic block diagram of a communication device provided according to an embodiment of the present application.

FIG. 8 is a schematic block diagram of an apparatus provided according to an embodiment of the present application.

FIG. 9 is a schematic block diagram of a communication system provided according to an embodiment of the present application.

detailed description

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are a part of the embodiments of the present application, rather than all the embodiments. With regard to the embodiments in the present application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

The technical solutions of the embodiments of the present application can be applied to various communication systems, for example: a Global System of Mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a wideband Code Division Multiple Access (CDMA) system (Wideband Code Division Multiple Access, WCDMA) system, General Packet Radio Service (General Packet Radio Service, GPRS), Long Term Evolution (Long Term Evolution, LTE) system, Advanced Long Term Evolution (Advanced long term evolution, LTE-A) system , New Radio (NR) system, evolution system of NR system, LTE (LTE-based access to unlicensed spectrum, LTE-U) system on unlicensed spectrum, NR (NR-based access to unlicensed spectrum) unlicensed spectrum, NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communication, but also support, for example, Device to Device (Device to Device, D2D) communication, Machine to Machine (M2M) communication, Machine Type Communication (MTC), Vehicle to Vehicle (V2V) communication, or Vehicle to everything (V2X) communication, etc. , the embodiments of the present application can also be applied to these communication systems.

Optionally, the communication system in this embodiment of the present application may be applied to a carrier aggregation (Carrier Aggregation, CA) scenario, a dual connectivity (Dual Connectivity, DC) scenario, or a standalone (Standalone, SA) distribution. web scene.

Optionally, the communication system in the embodiment of the present application may be applied to an unlicensed spectrum, where the unlicensed spectrum may also be considered as a shared spectrum; or, the communication system in the embodiment of the present application may also be applied to a licensed spectrum, where, Licensed spectrum can also be considered unshared spectrum.

The embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, where the terminal equipment may also be referred to as user equipment (User Equipment, UE), access terminal, subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

The terminal device can be a station (STAION, ST) in the WLAN, can be a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a personal digital processing (Personal Digital Assistant, PDA) devices, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, next-generation communication systems such as end devices in NR networks, or future Terminal equipment in the evolved public land mobile network (Public Land Mobile Network, PLMN) network, etc.

In this embodiment of the present application, the terminal device can be deployed on land, including indoor or outdoor, handheld, wearable, or vehicle-mounted; it can also be deployed on water (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons, and satellites) superior).

In this embodiment of the present application, the terminal device may be a mobile phone (Mobile Phone), a tablet computer (Pad), a computer with a wireless transceiver function, a virtual reality (Virtual Reality, VR) terminal device, and an augmented reality (Augmented Reality, AR) terminal Equipment, wireless terminal equipment in industrial control, wireless terminal equipment in self driving, wireless terminal equipment in remote medical, wireless terminal equipment in smart grid , wireless terminal equipment in transportation safety, wireless terminal equipment in smart city or wireless terminal equipment in smart home, etc.

As an example and not a limitation, in this embodiment of the present application, the terminal device may also be a wearable device. Wearable devices can also be called wearable smart devices, which are the general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories. Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction. In a broad sense, wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.

In this embodiment of the present application, the network device may be a device for communicating with a mobile device, and the network device may be an access point (Access Point, AP) in WLAN, or a base station (Base Transceiver Station, BTS) in GSM or CDMA , it can also be a base station (NodeB, NB) in WCDMA, it can also be an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, or a relay station or access point, or in-vehicle equipment, wearable devices and NR networks The network equipment or base station (gNB) in the PLMN network or the network equipment in the future evolved PLMN network or the network equipment in the NTN network, etc.

As an example and not a limitation, in this embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Optionally, the network device may be a satellite or a balloon station. For example, the satellites may be low earth orbit (LEO) satellites, medium earth orbit (MEO) satellites, geostationary earth orbit (GEO) satellites, High Elliptical Orbit (HEO) satellites ) satellite etc. Optionally, the network device may also be a base station set in a location such as land or water.

In this embodiment of the present application, a network device may provide services for a cell, and a terminal device communicates with the network device through transmission resources (for example, frequency domain resources, or spectrum resources) used by the cell, and the cell may be a network device ( For example, the cell corresponding to the base station), the cell can belong to the macro base station, or it can belong to the base station corresponding to the small cell (Small cell). Pico cell), Femto cell (Femto cell), etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

Exemplarily, a communication system 100 to which this embodiment of the present application is applied 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 device 120 (or referred to as a communication terminal, a terminal). The network device 110 may provide communication coverage for a particular geographic area, and may communicate with terminal devices located within the coverage area.

FIG. 1 exemplarily shows one network device and two terminal devices. Optionally, the communication system 100 may include multiple network devices and the coverage of each network device may include other numbers of terminal devices. This application The embodiment does not limit this.

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

It should be understood that, in the embodiments of the present application, a device having a communication function in the network/system 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 device 120 with a communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. ; The communication device may also include other devices in the communication system 100, such as other network entities such as a network controller, a mobility management entity, etc., which are not limited in this embodiment of the present application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" in this article is only an association relationship to describe the associated objects, indicating that there can be three kinds of relationships, for example, A and/or B, it can mean that A exists alone, A and B exist at the same time, and A and B exist independently B these three cases. In addition, the character "/" in this document generally indicates that the related objects are an "or" relationship.

It should be understood that the "instruction" mentioned in the embodiments of the present application may be a direct instruction, an indirect instruction, or an associated relationship. For example, if A indicates B, it can indicate that A directly indicates B, for example, B can be obtained through A; it can also indicate that A indicates B indirectly, such as A indicates C, and B can be obtained through C; it can also indicate that there is an association between A and B relation.

In the description of the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect corresponding relationship between the two, or may indicate that there is an associated relationship between the two, or indicate and be instructed, configure and be instructed configuration, etc.

In the NR system, downlink and uplink non-coherent transmission based on multiple TRPs is introduced. Among them, the backhaul connection between TRPs can be ideal or non-ideal. Under ideal backhaul, information exchange between TRPs can be performed quickly and dynamically. Can quasi-statically interact with information. In downlink non-coherent transmission, multiple TRPs can use different control channels to independently schedule multiple Physical Downlink Shared Channel (PDSCH) transmissions of a terminal, or use the same control channel to schedule transmissions of different TRPs. The data of different TRPs use different transport layers, and the latter can only be used for ideal backhaul.

For downlink transmission scheduled using multiple Physical Downlink Control Channels (PDCCH), the scheduled PDSCH may be transmitted in the same time slot or in different time slots. The terminal needs to support simultaneous reception of PDCCH and PDSCH from different TRPs. When the terminal feeds back positive acknowledgement (Acknowledgement, ACK)/negative acknowledgement (Negative Acknowledgement, NACK) and channel state information (Channel State Information, CSI), ACK/NACK and CSI can be fed back to different TRPs that transmit the corresponding PDSCH (as shown in the figure). A) in 2) can also be combined and reported to a TRP (B in Figure 2). A in Figure 2 can be applied to ideal backhaul and non-ideal backhaul scenarios, and B in Figure 2 can only be used in ideal backhaul scenarios.

In uplink non-coherent transmission, different TRPs can also independently schedule Physical Uplink Shared Channel (PUSCH) transmission of the same terminal. Different PUSCH transmissions can be configured with independent transmission parameters, such as beams, precoding matrices, and layers. The scheduled PUSCH transmissions may be transmitted in the same time slot or in different time slots. If the terminal is scheduled to transmit two PUSCHs 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 PUSCH on multiple panels, the two PUSCHs can be transmitted at the same time, and the PUSCHs transmitted on different panels are aligned with the corresponding TRP for analog shaping, thereby Different PUSCHs are distinguished in the spatial domain to provide uplink spectral efficiency, as shown in FIG. 3 . If the terminal has only a single panel, or does not support simultaneous transmission of multiple panels, the PUSCH can only be transmitted on one panel. Similar to downlink, PUSCH transmitted by different TRPs can be scheduled based on multiple downlink control information (Downlink Control Information, DCI), and these DCIs can be carried by different control resource sets (Control Resource Set, CORESET).

In the NR system, the network device can configure a corresponding Transmission Configuration Indicator (TCI) state for each downlink signal or downlink channel, indicating the quasi-co-located (Quasi-co-located) state corresponding to the target downlink signal or target downlink channel , QCL) reference signal, so that the terminal receives the target downlink signal or the target downlink channel based on the reference signal.

Among them, a TCI state can contain the following configurations:

TCI state ID, used to identify a TCI state;

QCL info 1;

QCL information 2.

Among them, a QCL information also includes the following information:

QCL type (type) configuration, which can be one of QCL type A, QCL type B, QCL type C, and QCL type D;

The QCL reference signal configuration includes the ID of the cell where the reference signal is located, the BWP ID, and the identifier of the reference signal (which can be a CSI-RS resource ID or an SSB index).

The QCL type of at least one of QCL information 1 and QCL information 2 must be one of typeA, typeB, and typeC, and the QCL type of the other QCL information (if configured) must be QCL type D.

Among them, the definitions of different QCL type configurations are as follows:

'QCL-TypeA': {Doppler shift, Doppler spread, average delay, delay spread};

'QCL-TypeB': {Doppler shift, Doppler spread};

'QCL-TypeC': {Doppler shift, average delay};

'QCL-TypeD': {Spatial Rx parameter}.

If the network device configures the QCL reference signal of the target downlink channel as the reference SSB or reference CSI-RS resource through the TCI state, and the QCL type is configured as typeA, typeB or typeC, the terminal device can assume that the target downlink channel is the same as the reference SSB. Or the target large-scale parameters of the reference CSI-RS resources are the same, so that the same corresponding reception parameters are used for reception, and the target large-scale parameters are determined by the QCL type configuration. Similarly, if the network device configures the QCL reference signal of the target downlink channel as a reference SSB or a reference CSI-RS resource through the TCI state, and the QCL type is configured as type D, the terminal device can use and receive the reference SSB or reference CSI-RS resource. The receive beam with the same RS resource (that is, the Spatial Rx parameter) is used to receive the target downlink channel. Generally, the target downlink channel and its reference SSB or reference CSI-RS resources are transmitted by the same TRP or the same antenna panel or the same beam on the network side. If the transmission TRPs, transmission panels or transmission beams of the two downlink signals or downlink channels are different, different TCI states are usually configured.

For the downlink control channel, the TCI state may be indicated by means of radio resource control (Radio Resource Control, RRC) signaling or RRC signaling+MAC signaling. For the downlink data channel, the available TCI state set is indicated by RRC signaling, and some of the TCI states are activated by MAC layer signaling, and finally one or two TCI states are indicated from the activated TCI state by the TCI state indication field in the DCI. TCI status for PDSCH scheduled by the DCI. For example, as shown in Figure 4, the network device indicates N candidate TCI states through RRC signaling, activates K TCI states through Media Access Control (MAC) signaling, and finally uses the TCI state in DCI The indication field indicates 1 or 2 TCI states in use from the active TCI states. For CSI-RS, its QCL source signal can be directly configured through high-layer signaling, which can be a synchronization signal block (Synchronization Signal Block, SSB) or another channel state information reference signal (Channel State Information Reference Signal, CSI- RS).

In the NR system, terminal equipment can use analog beams to transmit uplink data and uplink control information. The terminal device may perform uplink beam management based on a Sounding Reference Signal (Sounding Reference Signal, SRS) signal, so as to determine the analog beam used for uplink transmission. Specifically, the network device may configure an SRS resource set for the terminal device, select an SRS resource with the best reception quality based on the SRS transmitted by the terminal device in the SRS resource set, and assign the corresponding SRS resource indicator (SRS resource indicator, SRI ) to notify the terminal device. After receiving the SRI, the terminal device determines the analog beam used for the SRS resource indicated by the SRI as the analog beam used for transmitting the Physical Uplink Shared Channel (PUSCH). For the PUSCH scheduled by DCI, the SRI is indicated by the SRI indication field in the DCI; for the PUSCH scheduled by radio resource control (Radio Resource Control, RRC), the SRI is notified by corresponding scheduling signaling. If the DCI used to schedule the PUSCH is DCI format 0_0, the DCI does not contain SRI, and the terminal device configures the physical uplink control channel (Physical Uplink) with spatially related information on the active bandwidth part (Band Width Part, BWP) of the carrier where the PUSCH is located. The transmission beam on the PUCCH resource with the lowest resource identifier (Identity, ID) in the Control Channel (PUCCH) is used as the transmission beam of the PUSCH. At the same time, the terminal device uses the path loss measurement reference signal of the PUCCH as the PUSCH Path loss measurement reference signal. If there is no PUCCH resource configured on the activated BWP on the carrier where the PUSCH scheduled by the DCI format 0_0 is located, or if the PUCCH resource configured on the activated BWP on the carrier where the PUSCH is located has no spatial related information, the terminal device can The quasi-co-located (QCL) assumption (QCL type D) used by the CORESET with the lowest ID in the activated downlink BWP is used to obtain the transmit beam and path loss measurement reference signal of the PUSCH. For example, the receive beam of the downlink reference signal included in the QCL hypothesis may be used as the transmit beam of the PUSCH, and the downlink reference signal may be used as the path loss measurement reference signal of the PUSCH.

For PUCCH, a similar method is used to indicate the beam used. Specifically, for each PUCCH resource, multiple PUCCH spatial correlation information (PUCCH-spatial relationinfo) are configured in the RRC signaling, and then the currently used PUCCH-spatial relation information is indicated through the Media Access Control (MAC) layer signaling. spatialrelationinfo. Wherein, each PUCCH-spatialrelationinfo includes a reference signal used to determine the transmission beam of the PUCCH, which can be an SRS or a channel state information reference signal (Channel State Information Reference Signal, CSI-RS) or a synchronization signal block (Synchronization Signal Block, SSB). The PUCCH-spatialrelationinfo may also include power control parameters corresponding to the PUCCH. For each SRS resource, corresponding SRS spatial correlation information (SRS-spatial relationinfo) may also be configured through RRC signaling, which includes a reference signal used to determine the transmission beam of the SRS. If PUCCH-spatialrelationinfo is not configured on the network side, the terminal device can use a method similar to PUSCH, according to the QCL assumption (QCL assumption) used by the control resource set (Control Resource Set, CORESET) with the lowest ID in the downlink BWP activated on the carrier where the PUCCH is located. Type D), to obtain the transmission beam of the PUCCH. For example, the receive beam of the downlink reference signal included in the QCL hypothesis may be used as the transmit beam of the PUCCH.

In the NR system, each data channel and control channel can use a corresponding scrambling sequence.

In this embodiment of the present application, the scrambling sequence c ^(q) (i) of the PDSCH is a pseudo-random sequence, specifically a Gold sequence with a length of 31, and the length of the output sequence c(n) is M _PN , and n=0 ,1,…,M _PN -1 is defined by Equation 1 below:

_{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 _n (n))mod 2

得到，其中c _init根据序列的应用场景确定。 Wherein, in Equation 1, N _C =1600, the first m sequence x ₁ (n) _{is initialized by x 1} (0)=1, x ₁ (n)=0, n=1,2,...,30 . _{The initialization value x 2} (n) of the second m sequence is given by

is obtained, where c _{init is} determined according to the application scenario of the sequence.

Specifically, for PDSCH, its initialization value c _init is obtained by the following formula 2:

c _init =n _RNTI 2 ¹⁵ +q 2 ¹⁴ +n _ID Formula 2

(

为服务小区的小区ID)。这里n _RNTI是调度该PDSCH的PDCCH CRC加扰所采用的RNTI。 Wherein, q={0,1} is the index of the current codeword. When scheduling the cyclic redundancy check (Cyclical Redundancy Check, CRC) of the PDCCH of the PDSCH, the Cell Radio Network Temporary Identity (Cell Radio Network Temporary Identity, C-RNTI), Modulation and Coding Scheme Cell Radio Network Temporary Identity (MCS-C-RNTI), or Configured Scheduling Radio Network Temporary Identity (CS-RNTI) RNTI) scrambling, and the DCI format 1_0 scheduling in the Common Search Space (CSS) is not used, and when the PDSCH scrambling ID is configured in the high-level signaling, n _ID ∈ {0,1,…,1023} is defined by higher layer signaling; otherwise

(

is the cell ID of the serving cell). Here n _{RNTI is the RNTI used} for scheduling the PDCCH CRC scrambling of the PDSCH.

In this embodiment of the present application, the method for generating a scrambling sequence of PDCCH is the same as that of PDSCH, but the initialization value of the scrambling sequence is different. For PDCCH, its initialization value c _init is obtained by the following formula 3:

c _init =(n _RNTI ·2 ¹⁶ +n _ID )mod 2 ³¹ Equation 3

如果高层信令配置了PDCCH的加扰(scrambling)ID则USS中的PDCCH的n _RNTI等于C-RNTI，其他情况下n _RNTI＝0。 If the PDCCH belongs to the terminal equipment-specific search space (UE Search Space, USS) and the PDCCH scrambling ID is configured in the high-level signaling, n _ID ∈ {0,1,...,65535} is configured by the high-level signaling, otherwise

If the scrambling ID of the PDCCH is configured in the upper layer signaling, the n _RNTI of the PDCCH in the USS is equal to the C-RNTI, and in other cases, n _RNTI =0.

In the embodiment of the present application, the method for generating a scrambling sequence for PUSCH is the same as that for PDSCH, but the initialization value of the scrambling sequence is different. For PUSCH, the initialization value c _init is obtained by the following formula 4:

这里n _RNTI是调度该PUSCH的PDCCH的CRC加扰所采用的RNTI。 Wherein, when the CRC of the PDCCH scheduling the PUSCH adopts C-RNTI, MCS-C-RNTI or CS-RNTI scrambling, and does not use DCI format 0_0 scheduling in CSS, and the high-level signaling configures the PUSCH scrambling ID, Or when the PUSCH is triggered by the Type 2 random access procedure, n _ID ∈ {0,1,…,1023} is obtained by higher layer signaling; in other cases

Here n _RNTI is the RNTI used to schedule the CRC scrambling of the PDCCH of the PUSCH.

In this embodiment of the present application, the method for generating a scrambling sequence of PUCCH is the same as that of PUSCH, but the initialization value of the scrambling sequence is different. For PUCCH, its initialization value c _init is obtained by the following formula 5:

c _init =n _RNTI ·2 ¹⁵ +n _ID Formula 5

n _RNTI等于终端设备的C-RNTI。 Among them, n _ID ∈ {0,1,…,1023} is obtained by high-layer signaling, if the high-layer signaling is not configured, then

n _RNTI is equal to the C-RNTI of the terminal device.

For uplink and downlink non-coherent transmission, for uplink and downlink non-coherent transmission, if no special scrambling ID is configured by the upper layer or the channel is from a common search space, the terminal device will generate a channel based on the cell ID of the current serving cell. scrambling sequence. For uplink and downlink non-coherent transmission, multiple TRPs to be coordinated may be different physical cells, that is, the user's channels may come from different cells, but at this time, the scrambling sequence of these channels will still only use the same cell ID of the serving cell. In this case, the scrambling sequences of the channels transmitted between different cells and the same user are exactly the same, which will cause serious mutual interference, thereby affecting the performance of multi-cell cooperative transmission.

Based on the above problems, this application proposes a channel scrambling scheme. When the upper layer does not configure a special scrambling ID or the channel is from a common search space, the terminal device can obtain the channel according to the transmit beam or receive beam. The SSB determines the cell ID of the cell that transmits or receives the current channel, and is used to generate the scrambling sequence for the corresponding channel, so as to ensure that the channels transmitted between the terminal device and different cells use different scrambling sequences and reduce the interaction between these channels. interference, and improve the performance of multi-cell cooperative transmission.

The technical solutions of the present application are described in detail below through specific embodiments.

FIG. 5 is a schematic flowchart of a channel scrambling method 200 according to an embodiment of the present application. As shown in FIG. 5 , the method 200 may include at least part of the following contents:

S210, the terminal device determines the initialization value of the scrambling sequence of the first channel according to the cell identifier carried by the first SSB, where the first SSB is used to obtain the transmit beam or the receive beam of the first channel;

S220, the terminal device generates the scrambling sequence of the first channel according to the initialization value of the scrambling sequence.

In this embodiment of the present application, the first channel may be an uplink channel or a downlink channel.

Optionally, the first channel includes but is not limited to at least one of the following:

PDCCH, PDSCH, PUCCH, PUSCH.

In this embodiment of the present application, for uplink and downlink non-coherent transmission, the terminal device may determine the initialization of the scrambling sequence of the first channel according to the cell identifier carried by the first SSB used to obtain the transmit beam of the first channel or the receive beam value, and the scrambling sequence of the first channel is generated according to the determined initialization value of the scrambling sequence. Therefore, it is ensured that different scrambling sequences are used for the channels transmitted between the terminal equipment and different cells, mutual interference between these channels is reduced, and the performance of multi-cell cooperative transmission is improved.

That is to say, in this embodiment of the present application, even if the upper layer does not configure a special scrambling identifier or the channel is from a common search space, the terminal device can obtain the first SSB of the transmit beam or receive beam of the first channel according to the first SSB. The carried cell identifier generates the scrambling sequence of the first channel.

It should be noted that the SSB may also be referred to as a synchronization signal/physical broadcast channel block (synchronization signal/physical broadcast channel block, SS/PBCH block).

It should also be noted that, in this embodiment of the present application, the transmission beam may also be referred to as a spatial domain transmission filter (Spatial domain transmission filter or Spatial domain filter for transmission), a spatial relationship (Spatial relation), or a spatial setting (spatial setting). . The receive beam may also be called a spatial domain reception filter (Spatial domain reception filter or Spatial domain filter for reception) or a spatial reception parameter (Spatial Rx parameter).

Optionally, the cell identifier is a cell identifier carried by a primary synchronization signal (Primary Synchronization Signal, PSS) and a secondary synchronization signal (Secondary Synchronization Signal, SSS) in the first SSB.

Optionally, the information field used to indicate the first SSB includes the cell identifier carried by the first SSB. In addition, in this embodiment of the present application, the terminal device may detect the first SSB based on the information field.

Example 1, the first channel is a downlink channel. For example, the first channel is PDCCH or PDSCH.

In Example 1, the first SSB is the SSB indicated in the TCI state of the downlink channel, or the first SSB is the QCL source signal of the CSI-RS resource indicated in the TCI state of the downlink channel.

It should be noted that the QCL source signal of the CSI-RS resource can be understood as a signal that provides the QCL reference of the CSI-RS resource and is used to obtain the receive beam or the transmit beam of the CSI-RS resource.

Optionally, in Example 1, when the first SSB is the SSB indicated in the TCI state of the downlink channel, the terminal device uses the receive beam of the first SSB as the receive beam of the downlink channel.

Optionally, in Example 1, when the first SSB is the QCL source signal of the CSI-RS resource indicated in the TCI state of the downlink channel, the terminal device uses the receive beam of the first SSB as the CSI - the receive beam of the RS resource, and the receive beam of the CSI-RS resource as the receive beam of the downlink channel.

Example 2, the first channel is an uplink channel. For example, the first channel is PUCCH or PUSCH.

In example 2, the first SSB is the SSB indicated in the TCI status of the uplink channel or the spatially related information, or the first SSB is the SSB indicated in the TCI status of the uplink channel or the CSI-RS resource indicated in the spatially related information The QCL source signal, or the first SSB is the QCL source signal of the SRS resource indicated in the TCI state of the uplink channel or the space-related information.

It should be noted that the QCL source signal of the CSI-RS resource can be understood as a signal that provides the QCL reference of the CSI-RS resource and is used to obtain the receive beam or the transmit beam of the CSI-RS resource. In addition, the QCL source signal of the SRS resource can be understood as a signal that provides the QCL reference of the SRS resource and is used to obtain the receive beam or the transmit beam of the SRS resource.

Optionally, in Example 2, when the first SSB is the SSB indicated in the TCI state of the uplink channel or the space-related information, the terminal device uses the receiving beam of the first SSB as the transmission of the uplink channel. beam.

Optionally, in Example 2, when the first SSB is the TCI state of the uplink channel or the QCL source signal of the CSI-RS resource indicated in the spatial correlation information, the terminal device receives the first SSB The beam is used as the receive beam of the CSI-RS resource, and the receive beam of the CSI-RS resource is used as the transmit beam of the uplink channel.

Optionally, in Example 2, when the first SSB is the TCI state of the uplink channel or the QCL source signal of the SRS resource indicated in the space-related information, the terminal device uses the receiving beam of the first SSB as the source signal. The transmission beam of the SRS resource, and the transmission beam of the SRS resource as the transmission beam of the uplink channel.

Example 3, the first channel is PUSCH.

In Example 3, the first SSB is the SSB indicated in the TCI state of the first SRS resource or in the space-related information, and the first SRS resource is the SRS resource indicated by the SRS resource included in the scheduling information of the PUSCH.

Optionally, in Example 3, the terminal device uses the receive beam of the first SSB as the transmit beam of the first SRS resource, and uses the transmit beam of the first SRS resource as the transmit beam of the PUSCH.

Optionally, in some embodiments, when the cell identifier is different from the cell identifier of the serving cell, the terminal device determines the initialization value of the scrambling sequence of the first channel according to the cell identifier and the cell identifier of the serving cell. For example, the first channel is PDSCH, and the initialization value c _{init of the} scrambling sequence can be obtained from the following formula 6 or formula 7:

c _init =n _RNTI 2 ¹⁵ +q 2 ¹⁴ +n _ID Equation 6

其中

为该小区标识，

为服务小区的小区标识，N为小区标识的数量。 Wherein, n _{ID is} calculated based on the cell identifier and the cell identifier of the serving cell. For example,

in

is the cell identifier,

is the cell ID of the serving cell, and N is the number of cell IDs.

The channel scrambling method 200 in the present application will be described in detail below through Embodiments 1 to 4.

Embodiment 1, the first channel is PDSCH, and the first SSB is SSB1. Specifically, the terminal device determines the initialization value of the scrambling sequence of the PDSCH according to the cell identifier carried by the SSB1 used to obtain the receiving beam of the PDSCH.

In an implementation manner of Embodiment 1, the SSB1 is the SSB indicated in the TCI state of the PDSCH. In this case, the terminal device may use the receiving beam of the SSB1 as the receiving beam of the PDSCH.

In another implementation manner of Embodiment 1, the SSB1 is the QCL source signal of the CSI-RS resource indicated in the TCI state of the PDSCH. In this case, the terminal device may use the receiving beam of the SSB1 as the receiving beam of the CSI-RS resource, and then use the receiving beam of the CSI-RS resource as the receiving beam of the PDSCH.

For example, the QCL source signal of the CSI-RS resource is the SSB indicated in the TCI state configured for the CSI-RS resource through high-layer signaling, that is, the SSB1 and the CSI-RS resource are quasi-co-located. In this case Next, the terminal device may consider that the receiving beams of the SSB1 and the CSI-RS resource are the same.

In Embodiment 1, the TCI state may be indicated by scheduling the DCI of the PDSCH.

For example, the TCI state may include indication information of an SSB index (corresponding to SSB1), which is used to indicate the SSB corresponding to the SSB index, that is, SSB1.

For another example, the TCI state may include indication information of a CSI-RS resource identifier, which is used to indicate the CSI-RS resource corresponding to the CSI-RS resource identifier.

Optionally, in Embodiment 1, the cell identifier is a cell identifier carried by the PSS and SSS in the SSB1.

In an embodiment, the information field used to indicate the SSB1 may include the cell identifier carried by the SSB1 to help the terminal detect the SSB1. In this case, the terminal device can directly determine the initialization value of the scrambling sequence of the PDSCH according to the indicated cell identifier.

For example, the information field included in the TCI state for indicating SSB1 may include the following information: cell identity carried by the SSB, SSB index, subcarrier spacing of the SSB, and frequency domain location of the SSB. In this case, the terminal device can directly use the cell identifier in it to determine the initialization value of the scrambling sequence of the PDSCH.

It should be noted that the cell identity carried by the SSB1 and the cell identity of the serving cell of the terminal device may be the same or different.

Optionally, in Embodiment 1, when the PDSCH is scheduled by the DCI format 1_0 in the common search space, or when the RRC signaling does not contain the PDSCH scrambling identifier, or when the PDCCH of the PDSCH is scheduled. When the CRC check code is not scrambled by C-RNTI, MCS-C-RNTI or CS-RNTI, the terminal device can determine the scrambling of the PDSCH according to the cell identity carried by the SSB1 used to obtain the receiving beam of the PDSCH The initialization value of the sequence. In other cases, the terminal device may obtain the initialization value of the scrambling sequence of the PDSCH by using the scrambling identifier configured by the high-layer signaling.

For a specific method of generating the initialization value of the scrambling sequence, reference may be made to the above formula 2, and it is only necessary to replace the cell identifier of the serving cell with the cell identifier carried by the SSB1. That is, in Embodiment 1, the initialization value c _init of the scrambling sequence of the PDSCH is obtained by the following formula 8:

c _init =n _RNTI 2 ¹⁵ +q 2 ¹⁴ +n _ID Equation 8

(

为该SSB1所携带的小区ID)。 Among them, q={0,1} is the index of the current codeword, when the CRC of the PDCCH scheduling the PDSCH is scrambled by C-RNTI, MCS-C-RNTI or CS-RNTI, and DCI format 1_0 in CSS is not used During scheduling, n _ID ∈ {0,1,…,1023} is obtained from high-level parameters; otherwise

(

is the cell ID carried by the SSB1).

Optionally, in Embodiment 1, the terminal device generates the scrambling sequence of the PDSCH according to the initialization value of the scrambling sequence. For a specific method of generating a scrambling sequence, reference may be made to the above formula 1, and details are not repeated here.

Optionally, in Embodiment 1, the terminal device performs data detection carried by the PDSCH according to the generated scrambling sequence. Specifically, the terminal device descrambles the data carried by the PDSCH according to the scrambling sequence, so as to detect the data.

In Embodiment 2, the first channel is PDCCH, and the first SSB is SSB2. Specifically, the terminal device determines the initialization value of the scrambling sequence of the PDCCH according to the cell identifier carried by the SSB2 used to obtain the receiving beam of the PDCCH.

In an implementation manner of Embodiment 2, the SSB2 is the SSB indicated in the TCI state of the PDCCH. In this case, the terminal device directly uses the receiving beam of the SSB2 as the receiving beam of the PDCCH.

In another implementation of Embodiment 2, the SSB2 is the QCL source signal of the CSI-RS resource indicated in the TCI state of the PDCCH. In this case, the terminal equipment takes the receiving beam of the SSB2 as the receiving beam of the CSI-RS resource, and the receiving beam of the CSI-RS resource as the receiving beam of the PDCCH.

For example, the QCL source signal of the CSI-RS resource is the SSB indicated in the TCI state configured for the CSI-RS resource through high-layer signaling, that is, the SSB2 and the CSI-RS resource are quasi-co-located. In this case Next, the terminal device may consider that the receiving beams of the SSB2 and the CSI-RS resource are the same.

In Embodiment 1, the TCI state may be indicated by Media Access Control Control Element (Media Access Control Control Element, MAC CE) signaling.

For example, the TCI state may include indication information of an SSB index (corresponding to SSB2), which is used to indicate the SSB corresponding to the SSB index, that is, SSB2.

For another example, the TCI state may include indication information of a CSI-RS resource identifier, which is used to indicate the CSI-RS resource corresponding to the CSI-RS resource identifier.

Optionally, in Embodiment 2, the cell identifier is a cell identifier carried by the PSS and SSS in the SSB2. In an implementation manner, the information field used to indicate the SSB2 may include the cell identifier carried by the SSB2 to help the terminal detect the SSB2. In this case, the terminal device can directly determine the initialization value of the scrambling sequence of the PDSCH according to the indicated cell identifier.

For example, the information field included in the TCI state for indicating SSB2 may include the following information: the physical cell identity carried by the SSB, the SSB index, the subcarrier spacing of the SSB, and the frequency domain location of the SSB. In this case, the terminal device can directly use the cell identifier in it to determine the initialization value of the scrambling sequence of the PDSCH.

It should be noted that the cell identifier carried by the SSB2 and the serving cell identifier of the terminal device may be the same or different.

Optionally, in Embodiment 2, when the PDCCH is transmitted in the common search space, or when the RRC signaling does not contain the PDCCH scrambling ID, the terminal device can obtain the PDCCH according to the received beam The cell identity carried by the SSB2 determines the initialization value of the scrambling sequence of the PDCCH. In other cases, the terminal device may use the PDCCH scrambling ID configured by higher layer signaling to obtain the initialization value of the scrambling sequence of the PDCCH.

For a specific method of generating the initialization value of the scrambling sequence, reference may be made to the above formula 3, and it is only necessary to replace the cell identifier of the serving cell with the cell identifier carried by the SSB2. That is, in Embodiment 2, the initialization value c _init of the scrambling sequence of the PDCCH is obtained by the following formula 9:

c _init =(n _RNTI ·2 ¹⁶ +n _ID )mod 2 ³¹ Equation 9

(

为该SSB2所携带的小区标识)。如果高层信令配置了PDCCH的加扰ID，则USS中的PDCCH的n _RNTI等于C-RNTI，其他情况下n _RNTI＝0。 If the PDCCH belongs to the USS and the PDCCH scrambling ID is _{configured by the higher layer signaling, then n ID} ∈ {0,1,…,65535} is configured by the higher layer signaling, otherwise

(

is the cell identity carried by the SSB2). If the scrambling ID of the PDCCH is configured in the higher layer signaling, the n _RNTI of the PDCCH in the USS is equal to the C-RNTI, and in other cases n _RNTI =0.

Optionally, in Embodiment 2, the terminal device generates the scrambling sequence of the PDCCH according to the initialization value of the scrambling sequence. For a specific method of generating a scrambling sequence, reference may be made to the above formula 1, and details are not repeated here.

Optionally, in Embodiment 2, the terminal device detects the control information carried by the PDCCH according to the generated scrambling sequence. Specifically, the terminal device descrambles the control information carried by the PDCCH according to the scrambling sequence, so as to detect the control information.

In Embodiment 3, the first channel is PUSCH, and the first SSB is SSB3. Specifically, the terminal device determines the initialization value of the scrambling sequence of the PUSCH according to the cell identifier carried by the SSB3 used to obtain the transmission beam of the PUSCH.

In an implementation of Embodiment 3, the SSB3 is the SSB indicated in the TCI state of the PUSCH. In this case, the terminal device directly uses the receiving beam of the SSB3 as the transmitting beam of the PUSCH.

In another implementation of Embodiment 3, the SSB3 is the QCL source signal of the CSI-RS resource indicated in the TCI state of the PUSCH. In this case, the terminal equipment takes the receiving beam of the SSB3 as the receiving beam of the CSI-RS resource, and takes the receiving beam of the CSI-RS resource as the transmitting beam of the PUSCH.

For example, the QCL source signal of the CSI-RS resource is the SSB indicated in the TCI state configured for the CSI-RS resource through high-layer signaling, that is, the SSB3 and the CSI-RS resource are quasi-co-located. In this case Next, the terminal device may consider that the receiving beams of the SSB3 and the CSI-RS resource are the same.

In yet another implementation of Embodiment 3, the SSB3 is the QCL source signal of the SRS resource indicated by the TCI state of the PUSCH. In this case, the terminal device uses the receiving beam of SSB3 as the transmitting beam of the SRS resource, and the transmitting beam of the SRS resource as the transmitting beam of the PUSCH.

For example, the QCL source signal of the SRS resource is the spatial related information configured for the SRS resource through high-layer signaling or the SSB indicated in the TCI state, and the terminal device can use the receive beam of SSB3 as the transmit beam on the SRS resource.

Specifically, the TCI state may be indicated by scheduling the DCI of the PUSCH, or indicated by MAC CE signaling.

For example, the TCI state may include indication information of an SSB index (corresponding to SSB3), which is used to indicate the SSB corresponding to the SSB index, that is, SSB3.

For another example, the TCI state may include indication information of a CSI-RS resource identifier, which is used to indicate the CSI-RS resource corresponding to the CSI-RS resource identifier.

For another example, the TCI state may include indication information of the SRS resource identifier, which is used to indicate the SRS resource corresponding to the SRS resource identifier.

In yet another implementation of Embodiment 3, the SSB3 is an SSB indicated in the TCI state or space-related information of the first SRS resource, and the first SRS resource is indicated by the SRI information included in the scheduling information of the PUSCH SRS resource; wherein, the scheduling information of the PUSCH may be the DCI that schedules the PUSCH, or may be the RRC signaling that schedules the PUSCH. In this case, the terminal device uses the receiving beam of SSB3 as the transmitting beam of the first SRS resource, and the transmitting beam of the first SRS resource as the transmitting beam of the PUSCH.

Optionally, in Embodiment 3, the cell identifier is a cell identifier carried by the PSS and SSS in the SSB3. In an implementation manner, the information field used to indicate the SSB3 may include the cell identifier carried by the SSB3 to help the terminal detect the SSB3. In this case, the terminal device can directly determine the initialization value of the scrambling sequence of the PUSCH according to the indicated cell identifier.

For example, the information field indicating SSB3 included in the space-related information may include the following information: a physical cell identity and an SSB index carried by the SSB. In this case, the terminal device may directly use the cell identifier therein to determine the initialization value of the scrambling sequence of the PUSCH.

It should be noted that the cell identity carried by the SSB3 and the serving cell identity of the terminal device may be the same or different.

Optionally, in Embodiment 3, when the PUSCH is scheduled by the DCI format 0_0 in the common search space, or when the RRC signaling does not contain the PUSCH scrambling ID, or when the PDCCH of the PUSCH is scheduled The CRC check code is not scrambled by C-RNTI, MCS-C-RNTI, Semi-Persistent Channel State Information Radio Network Temporary Identity, SP-CSI-RNTI or CS-RNTI When , the terminal device determines the initialization value of the scrambling sequence of the PUSCH according to the cell identifier carried by the SSB3 used to obtain the transmission beam of the PUSCH. In other cases, the terminal device may use the PUSCH scrambling ID configured by higher layer signaling to obtain the initialization value of the PUSCH scrambling sequence.

For a specific method of generating the initialization value of the scrambling sequence, reference may be made to the above formula 4, and it is only necessary to replace the cell identifier of the serving cell with the cell identifier carried by the SSB3. That is, in Embodiment 3, the initialization value c _init of the scrambling sequence of the PUSCH is obtained by the following formula 10:

(

为该SSB所携带的小区标识)。 Among them, when the CRC of the PDCCH scheduling the PUSCH is scrambled with C-RNTI, MCS-C-RNTI, SP-CSI-RNTI or CS-RNTI, and the DCI format 0_0 in CSS is not used for scheduling, and the high-level signaling is configured with When PUSCH scrambles ID, or when PUSCH is triggered by Type2 random access procedure, n _ID ∈ {0,1,…,1023} is obtained by higher layer signaling; in other cases

(

is the cell identity carried by the SSB).

Optionally, in Embodiment 3, the terminal device generates the scrambling sequence of the PUSCH according to the initialization value of the scrambling sequence. For a specific method of generating a scrambling sequence, reference may be made to the above formula 1, and details are not repeated here.

Optionally, in Embodiment 3, the terminal device transmits the PUSCH according to the generated scrambling sequence. Specifically, the terminal device uses the scrambling sequence to scramble the data carried on the PUSCH, and sends the scrambled data through the PUSCH.

In Embodiment 4, the first channel is PUCCH, and the first SSB is SSB4. Specifically, the terminal device determines the initialization value of the scrambling sequence of the PUCCH according to the cell identifier carried by the SSB4 used to obtain the transmission beam of the PUCCH.

In an implementation manner of Embodiment 4, the SSB4 is an SSB indicated in the TCI state or space-related information of the PUCCH. In this case, the terminal device directly uses the receiving beam of the SSB4 as the transmitting beam of the PUCCH.

In another implementation manner of Embodiment 4, the SSB4 is the QCL source signal of the CSI-RS resource indicated in the TCI state of the PUCCH or the spatial correlation information. In this case, the terminal equipment takes the receiving beam of SSB4 as the receiving beam of the CSI-RS resource, and takes the receiving beam of the CSI-RS resource as the transmitting beam of the PUCCH.

For example, the QCL source signal of the CSI-RS resource is the SSB indicated in the TCI state configured for the CSI-RS resource through high-layer signaling, that is, the SSB4 and the CSI-RS resource are quasi-co-located. In this case Next, the terminal device may consider that the receiving beams of the SSB4 and the CSI-RS resource are the same.

In yet another implementation of Embodiment 4, the SSB4 is the QCL source signal of the SRS resource indicated in the TCI state of the PUCCH or the spatial correlation information. In this case, the terminal device uses the receiving beam of SSB4 as the transmission beam of the SRS resource, and the transmission beam of the SRS resource as the transmission beam of the PUCCH.

For example, the QCL source signal of the SRS resource is the spatial correlation information configured for the SRS resource through high-layer signaling or the SSB indicated in the TCI state, and the terminal can use the receive beam of SSB4 as the transmit beam on the SRS resource.

Specifically, the TCI state or space-related information may be indicated by RRC signaling or MAC CE signaling.

For example, the TCI state or space-related information may include indication information of an SSB index (corresponding to SSB4), which is used to indicate the SSB corresponding to the SSB index, that is, SSB4.

For another example, the TCI state or space-related information may include indication information of a CSI-RS resource ID, which is used to indicate a CSI-RS resource corresponding to the CSI-RS resource ID.

For another example, the TCI state or space-related information may include indication information of the SRS resource ID, which is used to indicate the SRS resource corresponding to the SRS resource ID.

Optionally, in Embodiment 4, the cell identifier is a cell identifier carried by the PSS and SSS in the SSB4. In an embodiment, the information field used to indicate the SSB4 may include the cell identifier carried by the SSB4 to help the terminal detect the SSB4. In this case, the terminal device can directly determine the initialization value of the scrambling sequence of the PUCCH according to the indicated cell identifier.

For example, the information field indicating SSB4 included in the space-related information may include the following information: a physical cell identity and an SSB index carried by the SSB. In this case, the terminal device may directly use the cell identifier therein to determine the initialization value of the scrambling sequence of the PUSCH.

It should be noted that the cell identity carried by the SSB4 and the serving cell identity of the terminal device may be the same or different.

Optionally, in Embodiment 4, when the RRC signaling does not contain the PUSCH scrambling ID, the terminal device determines the initialization of the scrambling sequence of the PUCCH according to the cell identifier carried by the SSB4 used to obtain the transmission beam of the PUCCH. value. In other cases, the terminal device may use the PUSCH scrambling ID configured by higher layer signaling to obtain the initialization value of the scrambling sequence of the PUCCH.

For a specific method of generating the initialization value of the scrambling sequence, reference may be made to the above formula 5, and it is only necessary to replace the cell identifier of the serving cell with the cell identifier carried by the SSB4. That is, in Embodiment 4, the initialization value c _init of the scrambling sequence of the PUCCH is obtained by the following formula 11:

c _init =n _RNTI ·2 ¹⁵ +n _ID Equation 11

(

为该 SSB4所携带的小区标识)。n _RNTI等于终端设备的C-RNTI。 Among them, n _ID ∈ {0,1,…,1023} is obtained by high-layer signaling, if the high-layer signaling is not configured, then

(

is the cell identity carried by the SSB4). n _RNTI is equal to the C-RNTI of the terminal device.

Optionally, in Embodiment 4, the terminal device generates the scrambling sequence of the PUCCH according to the initialization value of the scrambling sequence. For a specific method of generating a scrambling sequence, reference may be made to the above formula 1, and details are not repeated here.

Optionally, in Embodiment 4, the terminal device transmits the PUCCH according to the generated scrambling sequence. Specifically, the terminal device uses the scrambling sequence to scramble the control information carried on the PUCCH, and sends the scrambled control information through the PUCCH.

It should be noted that, in this embodiment of the present application, the cell identifier may be a physical cell identifier (ID).

Therefore, in this embodiment of the present application, the terminal device may determine the initialization value of the scrambling sequence of the first channel according to the cell identifier carried by the first SSB used to obtain the transmission beam of the first channel or the receiving beam, and determine the initialization value of the scrambling sequence of the first channel according to the The determined initialization value of the scrambling sequence generates the scrambling sequence of the first channel. Therefore, it is ensured that different scrambling sequences are used for the channels transmitted between the terminal equipment and different cells, mutual interference between these channels is reduced, and the performance of multi-cell cooperative transmission is improved.

Further, in this embodiment of the present application, even if the upper layer does not configure a special scrambling identifier or the channel is from a common search space, the terminal device can obtain the first channel according to the transmission beam or the first SSB of the receiving beam. The carried cell identifier generates the scrambling sequence of the first channel.

The method embodiments of the present application are described in detail above with reference to FIG. 5 , and the device embodiments of the present application are described in detail below with reference to FIGS. 6 to 9 . It should be understood that the device embodiments and the method embodiments correspond to each other, and similar descriptions may be See method examples.

FIG. 6 shows a schematic block diagram of a terminal device 300 according to an embodiment of the present application. As shown in Figure 6, the terminal device 300 includes:

The processing unit 310 is configured to determine the initialization value of the scrambling sequence of the first channel according to the cell identifier carried by the first SSB, where the first SSB is used to obtain the transmit beam or the receive beam of the first channel;

The processing unit 310 is further configured to generate the scrambling sequence of the first channel according to the initialization value of the scrambling sequence.

Optionally, when the first channel is a downlink channel, the first SSB is the SSB indicated in the TCI state of the transmission configuration indication of the downlink channel, or the first SSB is the SSB indicated in the TCI state of the downlink channel. The channel state information reference signal CSI-RS resource of the quasi-co-located QCL source signal.

Optionally, when the first SSB is the SSB indicated in the TCI state of the downlink channel, the processing unit 310 is further configured to use the receive beam of the first SSB as the receive beam of the downlink channel.

Optionally, when the first SSB is the QCL source signal of the CSI-RS resource indicated in the TCI state of the downlink channel, the processing unit 310 is further configured to use the receive beam of the first SSB as the CSI-RS resource. The receive beam of the RS resource, and the receive beam of the CSI-RS resource as the receive beam of the downlink channel.

Optionally, the downlink channel includes at least one of the following:

Physical downlink control channel PDCCH, physical downlink shared channel PDSCH.

Optionally, when the first channel is an uplink channel, the first SSB is the TCI state of the uplink channel or the SSB indicated in the space-related information, or the first SSB is the TCI state of the uplink channel or The QCL source signal of the CSI-RS resource indicated in the spatial correlation information, or the first SSB is the TCI state of the uplink channel or the QCL source signal of the sounding reference signal SRS resource indicated in the spatial correlation information.

Optionally, when the first SSB is the SSB indicated in the TCI state of the uplink channel or the space-related information, the processing unit 310 is further configured to use the receive beam of the first SSB as the transmit beam of the uplink channel .

Optionally, when the first SSB is the TCI state of the uplink channel or the QCL source signal of the CSI-RS resource indicated in the spatial correlation information, the processing unit 310 is further configured to receive the beam of the first SSB As the receive beam of the CSI-RS resource, and as the receive beam of the CSI-RS resource as the transmit beam of the uplink channel.

Optionally, when the first SSB is the TCI state of the uplink channel or the QCL source signal of the SRS resource indicated in the space-related information, the processing unit 310 is further configured to use the receive beam of the first SSB as the The transmission beam of the SRS resource, and the transmission beam of the SRS resource as the transmission beam of the uplink channel.

Optionally, the uplink channel includes at least one of the following:

Physical uplink control channel PUCCH, physical uplink shared channel PUSCH.

Optionally, the uplink channel is a physical uplink shared channel PUSCH, and the TCI state or space-related information is indicated by the DCI that schedules the PUSCH, or the TCI state or space-related information is indicated by MAC CE signaling.

Optionally, when the first channel is a PUSCH, the first SSB is an SSB indicated in the TCI state of the first SRS resource or the space-related information, and the first SRS resource is included in the scheduling information of the PUSCH. The SRS resource indicated by the SRS resource.

Optionally, the processing unit 310 is further configured to use the receive beam of the first SSB as the transmit beam of the first SRS resource, and use the transmit beam of the first SRS resource as the transmit beam of the PUSCH.

Optionally, the cell identifier is a cell identifier carried by the primary synchronization signal PSS and the secondary synchronization signal SSS in the first SSB.

Optionally, the information field used to indicate the first SSB includes the cell identifier carried by the first SSB.

Optionally, the processing unit 310 is specifically configured to:

When the cell identifier is different from the cell identifier of the serving cell, the initialization value of the scrambling sequence of the first channel is determined according to the cell identifier and the cell identifier of the serving cell.

Optionally, in some embodiments, the above-mentioned processing unit may be one or more processors.

It should be understood that the terminal device 300 according to the embodiment of the present application may correspond to the terminal device in the method embodiment of the present application, and the above-mentioned and other operations and/or functions of the various units in the terminal device 300 are respectively for realizing the method shown in FIG. 5 . The corresponding process of the terminal device in 200 is not repeated here for brevity.

FIG. 7 is a schematic structural diagram of a communication device 400 provided by an embodiment of the present application. The communication device 400 shown in FIG. 7 includes a processor 410, and the processor 410 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 7 , the communication device 400 may further include a memory 420 . The processor 410 may call and run a computer program from the memory 420 to implement the methods in the embodiments of the present application.

The memory 420 may be a separate device independent of the processor 410 , or may be integrated in the processor 410 .

Optionally, as shown in FIG. 7 , the communication device 400 may further include a transceiver 430, and the processor 410 may control the transceiver 430 to communicate with other devices, specifically, may send information or data to other devices, or receive other devices Information or data sent by a device.

Among them, the transceiver 430 may include a transmitter and a receiver. The transceiver 430 may further include antennas, and the number of the antennas may be one or more.

Optionally, the communication device 400 may specifically be the network device in this embodiment of the present application, and the communication device 400 may implement the corresponding processes implemented by the network device in each method in the embodiment of the present application. For the sake of brevity, details are not repeated here. .

Optionally, the communication device 400 may specifically be the mobile terminal/terminal device in the embodiments of the present application, and the communication device 400 may implement the corresponding processes implemented by the mobile terminal/terminal device in each method in the embodiments of the present application. , and will not be repeated here.

FIG. 8 is a schematic structural diagram of an apparatus according to an embodiment of the present application. The apparatus 500 shown in FIG. 8 includes a processor 510, and the processor 510 can call and run a computer program from a memory, so as to implement the method in the embodiment of the present application.

Optionally, as shown in FIG. 8 , the apparatus 500 may further include a memory 520 . The processor 510 may call and run a computer program from the memory 520 to implement the methods in the embodiments of the present application.

The memory 520 may be a separate device independent of the processor 510 , or may be integrated in the processor 510 .

Optionally, the apparatus 500 may further include an input interface 530 . The processor 510 may control the input interface 530 to communicate with other devices or chips, and specifically, may acquire information or data sent by other devices or chips.

Optionally, the apparatus 500 may further include an output interface 540 . The processor 510 may control the output interface 540 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

Optionally, the apparatus can be applied to the network equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the network equipment in the various methods of the embodiments of the present application, which are not repeated here for brevity.

Optionally, the apparatus can be applied to the mobile terminal/terminal equipment in the embodiments of the present application, and the apparatus can implement the corresponding processes implemented by the mobile terminal/terminal equipment in each method of the embodiments of the present application. For brevity, here No longer.

Optionally, the device mentioned in the embodiment of the present application may also be a chip. For example, it can be a system-on-chip, a system-on-a-chip, a system-on-a-chip, or a system-on-a-chip.

FIG. 9 is a schematic block diagram of a communication system 600 provided by an embodiment of the present application. As shown in FIG. 9 , the communication system 600 includes a terminal device 610 and a network device 620 .

The terminal device 610 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 620 can be used to implement the corresponding functions implemented by the network device in the above method. For brevity, details are not repeated here. .

It should be understood that the processor in this embodiment of the present application may be an integrated circuit chip, which has a signal processing capability. In the implementation process, each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software. The above-mentioned processor can be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other available Programming logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of this application can be implemented or executed. 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 conjunction with the embodiments of the present application may be directly embodied as executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art. The storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.

It can be understood that the memory in this embodiment of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Wherein, the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM, PROM), an erasable programmable read-only memory (Erasable PROM, EPROM), an electrically programmable read-only memory (Erasable PROM, EPROM). Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. Volatile memory may be Random Access Memory (RAM), which acts as an external cache. By way of illustration and not limitation, many forms of RAM are available, such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (Enhanced SDRAM, ESDRAM), synchronous link dynamic random access memory (Synchlink DRAM, SLDRAM) ) and direct memory bus random access memory (Direct Rambus RAM, DR RAM). It should be noted that the memory of the systems and methods described herein is intended to include, but not be limited to, these and any other suitable types of memory.

It should be understood that the above memory is an example but not a limitative description, for example, the memory in the embodiment of the present application may also be a static random access memory (static RAM, SRAM), a dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is, the memory in the embodiments of the present application is intended to include but not limited to these and any other suitable types of memory.

Embodiments of the present application further provide a computer-readable storage medium for storing a computer program.

Optionally, the computer-readable storage medium can be applied to the network device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the network device in the various methods of the embodiments of the present application. For brevity, here No longer.

Optionally, the computer-readable storage medium can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program enables the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application. , and are not repeated here for brevity.

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

Optionally, the computer program product can be applied to the network device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. Repeat.

Optionally, the computer program product can be applied to the mobile terminal/terminal device in the embodiments of the present application, and the computer program instructions cause the computer to execute the corresponding processes implemented by the mobile terminal/terminal device in each method of the embodiments of the present application, For brevity, details are not repeated here.

The embodiments of the present application also provide a computer program.

Optionally, the computer program can be applied to the network device in the embodiments of the present application. When the computer program is run on the computer, it causes the computer to execute the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity. , and will not be repeated here.

Optionally, the computer program may be applied to the mobile terminal/terminal device in the embodiments of the present application, and when the computer program is run on the computer, the mobile terminal/terminal device implements the various methods of the computer program in the embodiments of the present application. The corresponding process, for the sake of brevity, will not be repeated here.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of this application.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the several embodiments provided in this application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. For such understanding, the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program codes .

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. should be covered within the scope of protection of this application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims (37)

A channel scrambling method, comprising: The terminal device determines the initialization value of the scrambling sequence of the first channel according to the cell identifier carried by the first synchronization signal block SSB, where the first SSB is used to obtain the transmit beam or the receive beam of the first channel; The terminal device generates the scrambling sequence of the first channel according to the initialization value of the scrambling sequence. The method of claim 1, wherein: In the case where the first channel is a downlink channel, the first SSB is the SSB indicated in the transmission configuration indication TCI state of the downlink channel, or the first SSB is in the TCI state of the downlink channel Quasi-co-located QCL source signal for the indicated channel state information reference signal CSI-RS resource. The method of claim 2, wherein the method further comprises: In a case where the first SSB is the SSB indicated in the TCI state of the downlink channel, the terminal device uses the receive beam of the first SSB as the receive beam of the downlink channel. The method of claim 2, wherein the method further comprises: In the case where the first SSB is the QCL source signal of the CSI-RS resource indicated in the TCI state of the downlink channel, the terminal device uses the receive beam of the first SSB as the source signal of the CSI-RS resource receiving beams, and using the receiving beams of the CSI-RS resources as the receiving beams of the downlink channel. The method according to any one of claims 2 to 4, wherein the downlink channel comprises at least one of the following: Physical downlink control channel PDCCH, physical downlink shared channel PDSCH. The method of claim 1, wherein: When the first channel is an uplink channel, the first SSB is the TCI state of the uplink channel or the SSB indicated in the spatial correlation information, or the first SSB is the TCI state of the uplink channel Or the QCL source signal of the CSI-RS resource indicated in the spatial correlation information, or the first SSB is the TCI state of the uplink channel or the QCL source signal of the sounding reference signal SRS resource indicated in the spatial correlation information. The method of claim 6, wherein the method further comprises: In the case that the first SSB is the SSB indicated in the TCI state of the uplink channel or the space-related information, the terminal device uses the receive beam of the first SSB as the transmit beam of the uplink channel. The method of claim 6, wherein the method further comprises: In the case that the first SSB is the TCI state of the uplink channel or the QCL source signal of the CSI-RS resource indicated in the spatial correlation information, the terminal device uses the receiving beam of the first SSB as the CSI - the receive beam of the RS resource, and the receive beam of the CSI-RS resource as the transmit beam of the uplink channel. The method of claim 6, wherein the method further comprises: When the first SSB is the TCI state of the uplink channel or the QCL source signal of the SRS resource indicated in the space-related information, the terminal device uses the receive beam of the first SSB as the source signal of the SRS resource. sending beams, and using the sending beams of the SRS resources as the sending beams of the uplink channel. The method according to any one of claims 6 to 9, wherein the uplink channel comprises at least one of the following: Physical uplink control channel PUCCH, physical uplink shared channel PUSCH. The method according to any one of claims 6 to 10, wherein the uplink channel is a physical uplink shared channel PUSCH, and the TCI status or space-related information is indicated by the DCI scheduling the PUSCH, or the The TCI status or space related information is indicated by MAC CE signaling. The method according to claim 1, wherein, when the first channel is a PUSCH, the first SSB is an SSB indicated in a TCI state of the first SRS resource or space-related information, and the first SSB is One SRS resource is the SRS resource indicated by the SRS resource included in the scheduling information of the PUSCH. The method of claim 12, wherein the method further comprises: The terminal device uses the receive beam of the first SSB as the transmit beam of the first SRS resource, and uses the transmit beam of the first SRS resource as the transmit beam of the PUSCH. The method according to any one of claims 1 to 13, wherein the cell identifier is a cell identifier carried by the primary synchronization signal PSS and the secondary synchronization signal SSS in the first SSB. The method according to any one of claims 1 to 14, wherein the information field for indicating the first SSB includes the cell identifier carried by the first SSB. The method according to any one of claims 1 to 15, wherein the terminal device determines the initialization value of the scrambling sequence of the first channel according to the cell identifier carried by the first SSB, comprising: When the cell identifier is different from the cell identifier of the serving cell, the terminal device determines the initialization value of the scrambling sequence of the first channel according to the cell identifier and the cell identifier of the serving cell. A terminal device, characterized in that it includes: a processing unit, configured to determine the initialization value of the scrambling sequence of the first channel according to the cell identifier carried by the first synchronization signal block SSB, where the first SSB is used to obtain the transmit beam or receive the first channel beam; The processing unit is further configured to generate the scrambling sequence of the first channel according to the initialization value of the scrambling sequence. The terminal device of claim 17, wherein, In the case where the first channel is a downlink channel, the first SSB is the SSB indicated in the transmission configuration indication TCI state of the downlink channel, or the first SSB is in the TCI state of the downlink channel Quasi-co-located QCL source signal for the indicated channel state information reference signal CSI-RS resource. The terminal device of claim 18, wherein: When the first SSB is the SSB indicated in the TCI state of the downlink channel, the processing unit is further configured to use the receive beam of the first SSB as the receive beam of the downlink channel. The terminal device of claim 18, wherein: When the first SSB is the QCL source signal of the CSI-RS resource indicated in the TCI state of the downlink channel, the processing unit is further configured to use the receive beam of the first SSB as the CSI-RS The receiving beam of the RS resource, and the receiving beam of the CSI-RS resource is used as the receiving beam of the downlink channel. The terminal device according to any one of claims 18 to 20, wherein the downlink channel comprises at least one of the following: Physical downlink control channel PDCCH, physical downlink shared channel PDSCH. The terminal device of claim 17, wherein, When the first channel is an uplink channel, the first SSB is the TCI state of the uplink channel or the SSB indicated in the space-related information, or the first SSB is the TCI state of the uplink channel Or the QCL source signal of the CSI-RS resource indicated in the spatial correlation information, or the first SSB is the TCI state of the uplink channel or the QCL source signal of the sounding reference signal SRS resource indicated in the spatial correlation information. The terminal device of claim 22, wherein, When the first SSB is the SSB indicated in the TCI state of the uplink channel or the space-related information, the processing unit is further configured to use the receive beam of the first SSB as the transmit beam of the uplink channel . The terminal device of claim 22, wherein, When the first SSB is the TCI state of the uplink channel or the QCL source signal of the CSI-RS resource indicated in the spatial correlation information, the processing unit is further configured to use the receive beam of the first SSB as the receiving beam of the CSI-RS resource, and using the receiving beam of the CSI-RS resource as the transmitting beam of the uplink channel. The terminal device of claim 22, wherein, When the first SSB is the TCI state of the uplink channel or the QCL source signal of the SRS resource indicated in the spatial correlation information, the processing unit is further configured to use the receive beam of the first SSB as the The transmission beam of the SRS resource, and the transmission beam of the SRS resource is used as the transmission beam of the uplink channel. The terminal device according to any one of claims 22 to 25, wherein the uplink channel includes at least one of the following: Physical uplink control channel PUCCH, physical uplink shared channel PUSCH. The terminal device according to any one of claims 22 to 26, wherein the uplink channel is a physical uplink shared channel PUSCH, and the TCI status or space-related information is indicated by scheduling the DCI of the PUSCH, or, The TCI state or space-related information is indicated by MAC CE signaling. The terminal device according to claim 17, wherein when the first channel is a PUSCH, the first SSB is an SSB indicated in a TCI state of the first SRS resource or space-related information, and the The first SRS resource is the SRS resource indicated by the SRS resource included in the scheduling information of the PUSCH. The terminal device of claim 28, wherein: The processing unit is further configured to use the receive beam of the first SSB as the transmit beam of the first SRS resource, and use the transmit beam of the first SRS resource as the transmit beam of the PUSCH. The terminal device according to any one of claims 17 to 29, wherein the cell identifier is a cell identifier carried by the primary synchronization signal PSS and the secondary synchronization signal SSS in the first SSB. The terminal device according to any one of claims 17 to 30, wherein the information field used to indicate the first SSB includes the cell identifier carried by the first SSB. The terminal device according to any one of claims 17 to 31, wherein the processing unit is specifically configured to: When the cell identifier is different from the cell identifier of the serving cell, the initialization value of the scrambling sequence of the first channel is determined according to the cell identifier and the cell identifier of the serving cell. A terminal device, characterized in that it comprises: a processor and a memory, the memory is used to store a computer program, the processor is used to call and run the computer program stored in the memory, and execute any one of claims 1 to 16. one of the methods described. A chip, characterized by comprising: a processor for calling and running a computer program from a memory, so that a device installed with the chip executes the method according to any one of claims 1 to 16 . A computer-readable storage medium, characterized by being used for storing a computer program, the computer program causing a computer to execute the method according to any one of claims 1 to 16. A computer program product comprising computer program instructions, the computer program instructions causing a computer to perform the method of any one of claims 1 to 16. A computer program, characterized in that the computer program causes a computer to perform the method according to any one of claims 1 to 16.

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