CN115702556A

CN115702556A - Signal processing method, apparatus and computer readable storage medium

Info

Publication number: CN115702556A
Application number: CN202080102228.5A
Authority: CN
Inventors: 杜冬阳
Original assignee: Shenzhen Transsion Holdings Co Ltd
Current assignee: Shenzhen Transsion Holdings Co Ltd
Priority date: 2020-06-19
Filing date: 2020-06-19
Publication date: 2023-02-14
Also published as: WO2021253389A1

Abstract

The signal processing method, the signal processing device and the computer readable storage medium provided by the application scramble a signal to be transmitted to a terminal device according to a scrambling sequence corresponding to a transmission receiving point to obtain a scrambled signal, and transmit the scrambled signal to the terminal device. In this way, when the network device sends the scrambled signal to the terminal device, the terminal device may descramble the scrambled signal according to the scrambling sequence of the connected transmission receiving point, and further identify the transmission receiving point sending the scrambled signal, so as to be able to respond to the signal. This method is simple and easy to implement, and enables the terminal device to effectively recognize the transmission source corresponding to the received signal.

Description

Signal processing method, apparatus and computer-readable storage medium

Technical Field

The present application relates to communications technologies, and in particular, to a signal processing method, a device, and a computer-readable storage medium.

Background

Currently, 5G (fifth generation mobile communication system) is developed and applied more. Since the data transmission speed of 5G is faster, there are many application scenarios that require the application of 5G technology, which also promotes the development of 5G.

Among them, the frequency spectrum adopted by 5G is high, and in the case of a high frequency spectrum, since the coverage area of one network node (e.g., a base station) is limited, the cell coverage radius may be very small, and therefore, a plurality of network nodes are generally introduced into 5G. For example, a concept of TRP (Transmission Reception Point) is introduced, and network coverage is increased by increasing the number of Transmission nodes at the air interface of the network.

However, in a scenario where multiple Downlink Control Information (DCI) is used to schedule a PDSCH (Physical Downlink shared Channel) of multiple TRPs/panels (an antenna array of a TRP may be divided into several relatively independent sub-arrays), a terminal device may receive signals transmitted by different TRPs/panels, and how the terminal device determines which TRP/Panel a transmitting end of the signal is, is a technical problem that needs to be solved by those skilled in the art.

The foregoing description is provided for general background information and is not admitted to be prior art.

Disclosure of Invention

The application provides a signal processing method, a device and a computer readable storage medium, so as to solve the problem that in the prior art, a terminal device cannot identify which TRP/panel a sending end of a received signal is.

A first aspect of the present application provides a signal processing method applied to a network device (e.g., a base station), the method including:

scrambling a signal to be sent to the terminal equipment according to a scrambling sequence corresponding to the transmission receiving point to obtain a scrambled signal;

and sending the scrambled signal to the terminal equipment.

A second aspect of the present application provides a signal processing method, applied to a terminal device, the method including:

receiving a scrambling signal sent by a transmission receiving point, wherein the scrambling signal is obtained by scrambling a signal to be sent according to a scrambling sequence corresponding to the transmission receiving point;

acquiring at least one scrambling code sequence and descrambling the scrambled signal, wherein the scrambling code sequence corresponds to the transmission receiving point;

and determining a transmission receiving point for sending the scrambled signal according to the descrambling result.

A third aspect of the present application is to provide a signal processing method applied to a control device, the method including:

processing an original scrambling sequence according to the index of a transmission receiving point to obtain a scrambling sequence corresponding to the transmission receiving point;

and sending the scrambling code sequence corresponding to the transmission receiving point, wherein the scrambling code sequence corresponding to the transmission receiving point is used for scrambling a signal to be sent to a terminal device.

A fourth aspect of the present application provides a signal processing method, applied to a transmission and reception point, including:

receiving a scrambling code sequence sent by control equipment, wherein the scrambling code sequence is obtained by processing an original scrambling code sequence according to an index of a transmission receiving point;

scrambling the signal to be sent to the terminal equipment according to the scrambling code sequence to obtain a scrambled signal;

and sending the scrambled signal to terminal equipment.

A fifth aspect of the present application provides a network device (e.g., a base station) comprising:

a memory;

a processor;

and a computer program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the method of the first aspect.

A sixth aspect of the present application provides a terminal device, including:

a memory;

a processor;

and a computer program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the method of the second aspect.

A seventh aspect of the present application is to provide a control apparatus comprising:

a memory;

a processor;

and a computer program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the method of the third aspect.

An eighth aspect of the present application provides a transmission reception point, including:

a memory;

a processor;

and a computer program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the method of the fourth aspect.

A ninth aspect of the present application provides a signal processing system, including a terminal device and a network device;

the terminal device comprises at least one terminal device as described in the sixth aspect;

the network device comprises at least one network device according to the fifth aspect.

A tenth aspect of the present application provides a signal processing system, including a terminal device and a network device;

the network device comprises at least one transmission receiving point according to the eighth aspect;

the terminal device comprises at least one terminal device according to the sixth aspect.

Yet another aspect of the present application is to provide a computer-readable storage medium, on which a computer program is stored, the computer program being executed by a processor to implement the signal processing method of any one of the above aspects.

The signal processing method, the signal processing equipment and the computer readable storage medium have the technical effects that:

the signal processing method, the signal processing device and the computer readable storage medium provided by the application scramble a signal to be transmitted to a terminal device according to a scrambling sequence corresponding to a transmission receiving point to obtain a scrambled signal, and transmit the scrambled signal to the terminal device. In this way, when the network device sends the scrambled signal to the terminal device, the terminal device may descramble the scrambled signal according to the scrambling sequence of the connected transmission receiving point, and then identify the transmission receiving point sending the scrambled signal, so as to be able to respond to the signal. This method is simple and easy to implement, and enables the terminal device to effectively identify the transmission source corresponding to the received signal.

Drawings

FIG. 1 is a diagram illustrating an application scenario of the present application;

fig. 2 is a flowchart of a signal processing method according to a first exemplary embodiment of the present application;

fig. 3 is a flow chart of a signal processing method according to a second exemplary embodiment of the present application;

FIG. 4 is a diagram illustrating another exemplary application scenario of the present application;

fig. 5 is a flowchart of a signal processing method according to a third exemplary embodiment of the present application;

fig. 6 is a flowchart of a signal processing method according to a fourth exemplary embodiment of the present application;

fig. 7 is a block diagram of a signal processing apparatus shown in the first exemplary embodiment of the present application;

fig. 8 is a block diagram of a signal processing apparatus shown in a second exemplary embodiment of the present application;

fig. 9 is a block diagram of a signal processing apparatus shown in a third exemplary embodiment of the present application;

fig. 10 is a block diagram of a signal processing apparatus according to a fourth exemplary embodiment of the present application;

fig. 11 is a block diagram of a terminal device according to an exemplary embodiment of the present application;

FIG. 12 is a block diagram of a network device shown in an exemplary embodiment of the present application;

fig. 13 is a block diagram of a control device shown in an exemplary embodiment of the present application;

fig. 14 is a block diagram of a transmission receiving point according to an exemplary embodiment of the present application.

Detailed Description

Currently, multiple TRP/panels are placed in many cells, thereby increasing the coverage radius of the size region. In a scenario of scheduling a PDSCH with multiple TRP/panels based on multiple DCI, if spatial positions between multiple TRP/panels are far apart or signal propagation path isolation is good, a terminal device may receive two completely uncorrelated signals, i.e., an NCJT (non-coherent Joint Transmission) scenario.

In the NCJT scenario, different TRP/panels respectively transmit completely uncorrelated signals to the terminal device, and in this case, the terminal device cannot identify which TRP/panel the received signal is transmitted, and thus cannot respond to the TRP/panel transmitting the signal.

According to the scheme provided by the application, when the signal is sent to the terminal equipment, the signal to be sent is scrambled according to the scrambling code sequence corresponding to the transmission receiving point, and the scrambled signal is obtained. After receiving the scrambled signal, the terminal device can descramble the scrambled signal by using the scrambling code sequence corresponding to the transmission receiving point connected with the terminal device, so that the transmission receiving point for sending the scrambled signal can be determined according to the descrambling result. This method is simple and easy to implement, and enables the terminal device to effectively recognize the transmission source corresponding to the received signal.

Some embodiments of the present application will be described below with reference to the accompanying drawings. The features of the embodiments and examples described below may be combined with each other without conflict between the embodiments.

Fig. 1 is an application scenario diagram of the present application.

The method provided by the present application may be applied in a network device (such as a base station), for example, the network device 13 shown in fig. 1, which is provided with a plurality of transmission receiving points.

As shown in fig. 1, a terminal device 11 may be connected to multiple transmission/reception points 12 at the same time, and these transmission/reception points 12 may transmit signals to the terminal device based on a Physical Downlink Shared Channel (PDSCH).

Wherein the transmission reception points 12 may be provided on the same network device 13 in the communication system. The network device 13 can transmit a signal to the connected terminal device 11 via the transmission reception point 12 provided thereon.

The network device 13 may determine scrambling sequences corresponding to the transmission receiving points 12 set thereon, and the transmission receiving points 12 may scramble a signal to be transmitted, and then transmit the obtained scrambled signal to the terminal device 11.

Fig. 2 is a flowchart of a signal processing method according to a first exemplary embodiment of the present application.

As shown in fig. 2, the method provided by the present application may include:

step 201, scrambling the signal to be transmitted to the terminal device according to the scrambling sequence corresponding to the transmission receiving point to obtain a scrambled signal.

When the network device sends a signal to the terminal device, the network device may scramble the signal to be sent first.

Specifically, when the network device is provided with a plurality of transmission/reception points, a signal can be transmitted to the terminal device using any one of the transmission/reception points to which the terminal device is connected. In this case, the network device may scramble the signal to be transmitted to the terminal device based on the scrambling sequence corresponding to the transmission receiving point of the transmission signal, so as to obtain a scrambled signal.

Further, the network device may configure a corresponding scrambling code sequence for each transmission receiving point configured by the network device. For example, the scrambling code sequence corresponding to the transmission receiving point may be generated according to the index of the transmission receiving point.

The network device may obtain an original scrambling sequence, and may specifically determine an original scrambling sequence seqscrambrgolden from a golden sequence (a pseudo-random sequence with better characteristics).

Specifically, the network device and the terminal device may agree on a manner of determining an original scrambling code sequence from the golden sequence, that is, the terminal device may also determine the original scrambling code sequence seqscrambrgolden based on a certain rule.

Further, the network device may process the original scrambling sequence according to the index of the transmission receiving point to obtain the scrambling sequence corresponding to the transmission receiving point. For example, if the network device is provided with a plurality of transmission receiving points, the scrambling code sequence corresponding to the transmission receiving point may be determined according to the index of each transmission receiving point.

In practical application, the scrambling sequence applied to the PDSCH at different transmission reception points can be indicated by the trpsccrambd of the transmission reception point. When determining the index of the transmission receiving point, the network device may determine the index of the transmission receiving points according to the transmission receiving points connected to a terminal device. For example, if M transmission reception points are connected to one terminal device, the indexes of the M transmission reception points may be trpscambid 1, trpscambid 2, \8230;, trpscambid, respectively.

In an optional implementation manner, the original scrambling code sequence may be processed by cyclic shift according to the index of the transmission receiving point, so as to obtain the scrambling code sequence corresponding to the transmission receiving point.

Specifically, scrambling is a processing method of digital signals, that is, a scrambling sequence is multiplied by a signal to be transmitted to a terminal device, so as to obtain a scrambled signal. The scrambled signal is scattered in time and frequency compared to the signal to be transmitted to the terminal device.

When the network device sends a signal to the terminal device, the network device may scramble the signal to be sent to the terminal device by using the scrambling sequence, and then send the scrambled signal to the terminal device. Specifically, a transmission receiving point set in the network device may send a scrambled signal to the terminal device, and the signal to be sent may be scrambled according to a scrambling sequence corresponding to the transmission receiving point that sent the signal.

For example, two transmission/reception points are connected to the terminal ue1, and the indices of the two transmission/reception points may be trpsccrambd 1 and trpsccrambd 2, respectively. The network device can process the original scrambling code sequence by using TrpScrambid1 to obtain a first scrambling code sequence, and process the original scrambling code sequence by using TrpScrambid2 to obtain a second scrambling code sequence. When a signal is transmitted to ue1 through a transmission receiving point with the index of TrpScrambiD1, the signal to be transmitted can be scrambled by using the first scrambling sequence to obtain a scrambled signal, and then the scrambled signal is transmitted to ue1. When a signal is transmitted to ue1 through a transmission receiving point with the index TrpScrambiD2, the signal to be transmitted can be scrambled by using the second scrambling sequence, a scrambled signal is obtained, and the scrambled signal is transmitted to ue1.

Step 202, sending the scrambled signal to the terminal device.

Specifically, the network device may transmit the scrambled signal to the terminal device using the transmission receiving point set by the network device. After receiving the scrambled signal, the terminal device may descramble according to the scrambling code sequence of each transmission receiving point connected to the terminal device, and if descrambling of the scrambled signal by using one scrambling code sequence is successful, the transmission receiving point transmitting the scrambled signal may be considered as the transmission receiving point corresponding to the used scrambling code sequence.

For example, the terminal device may process the original scrambling sequence by using the index corresponding to the transmission receiving point to which the terminal device is connected, and the specific processing manner may be the same as the processing manner of the network device on the original scrambling sequence.

Further, the terminal device may descramble the received scrambled signal by using the obtained scrambling sequence, and if descrambling is successful, it indicates that the transmission receiving point corresponding to the scrambling sequence is the transmission receiving point that sent the scrambled signal.

In practical application, the terminal device may attempt to descramble the received scrambled signal according to the index of the connected transmission receiving point, and then identify the transmission receiving point that sent the scrambled signal according to the descrambling result.

The method provided by the present embodiment is used for processing signals, and is performed by a device provided with the method provided by the present embodiment, and the device is generally implemented in a hardware and/or software manner.

The signal processing method provided by the embodiment is applied to network equipment, and comprises the following steps: scrambling the signal to be sent to the terminal equipment according to the scrambling code sequence corresponding to the transmission receiving point to obtain a scrambling signal, and sending the scrambling signal to the terminal equipment. In this way, when the network device sends the scrambled signal to the terminal device, the terminal device may descramble the scrambled signal according to the scrambling sequence of the connected transmission receiving point, and further identify the transmission receiving point sending the scrambled signal, so as to be able to respond to the signal.

In an alternative embodiment, the original scrambling sequence is processed by using the index of the transmission receiving point, and the scrambling sequence corresponding to the transmission receiving point is obtained.

Further, the network device may process the original scrambling sequence according to the index of the transmission receiving point to obtain a scrambling sequence corresponding to the transmission receiving point. For example, if the network device is provided with multiple transmission receiving points, the scrambling code sequence corresponding to the transmission receiving point may be determined according to the index of each transmission receiving point.

In practical application, the scrambling sequence applied to the PDSCH at different transmission reception points can be indicated by the trpsccrambd of the transmission reception point. When determining the index of the transmission receiving point, the network device may determine the index of the transmission receiving points according to the transmission receiving points connected to a terminal device. For example, if M transmission receiver points are connected to one terminal device, the indexes of the M transmission receiver points may be trpscambid 1, trpscambid 2, \ 8230;, and trpscambid M, respectively.

The terminal device may also determine an index of a transmission receiving point connected thereto based on the above manner.

Specifically, the network device may process the original scrambling sequence by using a value M (M is any one of 1-M) included in the index of the transmission receiving point. For example, for a transmission receiving point with an index of trpscambid 1, the network device may process the original scrambling sequence with a value of "1" to obtain a scrambling sequence corresponding to the transmission receiving point with the index of trpscambid 1. For the transmission and reception point with the index of trpscambid 2, the network device may process the original scrambling sequence with the value "2" to obtain the scrambling sequence corresponding to the transmission and reception point with the index of trpscambid 2.

Further, for example, the original scrambling code sequence may be cyclically shifted by using the value included in the index of the transmission receiving point, so as to obtain the scrambling code sequence corresponding to the transmission receiving point. For another example, the product of the value included in the index of the transmission receiving point and a preset value N may be calculated, and the original scrambling code sequence is cyclically shifted by using the product, so as to obtain the scrambling code sequence corresponding to the transmission receiving point.

The value or product included in the above-mentioned transmission reception point index may be used as the number of bits for cyclically shifting the original scrambling code sequence.

In practical application, the circulation direction can be circulation right movement, that is, the moved low order is put to the high order of the number; the circulation direction can also circularly move left, namely, the moved high bit is put to the low bit of the number. For example, for sequence 1234, the sequence shifted to the right by 1 bit in the cycle is 4123, and the sequence shifted to the left by 1 bit in the cycle is 2341.

In an alternative embodiment, the index is used to indicate the number of bit shifts, and the scrambling sequence is the original scrambling sequence cyclically shifted by the number of bit shifts.

Wherein the index of the transmission reception point may be used to indicate a number of shift bits.

In one approach, the index of the transmission receiving point may have a value, and the value may be directly used as a bit shift number. For example, if the index of the transmission receiving point is trpscambid 1, the bit shift number is 1.

In another mode, a corresponding relationship between the index of the transmission/reception point and the value may be preset, and a table may be looked up according to the index of the transmission/reception point to determine the corresponding value, and the bit shift may be a value corresponding to the index of the transmission/reception point. Optionally, the corresponding relationship may be synchronized to the terminal device, so that the terminal device can determine a corresponding numerical value according to the index of the connected transmission receiving point. For example, when the transmission receiving point index is a, the corresponding value may be 1.

When the original scrambling code sequence is processed, the original scrambling code sequence can be circularly displaced by using the displacement number indicated by the index of the transmission receiving point, and then the scrambling code sequence corresponding to the transmission receiving point is obtained. That is, the scrambling code sequence corresponding to the transmission receiving point is the original scrambling code sequence circularly shifted by the shift number indicated by the index of the transmission receiving point. For example, if the bit shift number indicated by a transmission receiving point index is m, the original scrambling code sequence is cyclically shifted by m bits, and the scrambling code sequence corresponding to the transmission receiving point is obtained.

When the terminal device descrambles the scrambled signal according to the index of the transmission receiving point, the original scrambling sequence can also be circularly shifted by using the shift digits, and then the scrambling sequence corresponding to the transmission receiving point is obtained.

In an alternative embodiment, the index has a corresponding value, and the number of shifts is a product of the value and a predetermined value.

For example, if the index of the transmission receiving point is trpscambid 1, the index has a value of 1. A preset numerical value N can also be preset, wherein N is a positive integer. The bit shift number may be a product of an index of the transmission receiving point with a corresponding value and a preset value.

Specifically, if the index of the transmission receiving point has a value m and the predetermined value N, the bit shift number is equal to the product of m and N. When the network device processes the original scrambling code sequence, the product can be used to carry out cyclic displacement on the original scrambling code sequence, and then the scrambling code sequence corresponding to the transmission receiving point is obtained. That is, the scrambling sequence is the original scrambling sequence cyclically shifted by the product between m and N.

When the terminal device descrambles the scrambled signal according to the index of the transmission receiving point, the product can also be used for circularly shifting the original scrambling sequence, and then the scrambling sequence corresponding to the transmission receiving point is obtained.

In an alternative embodiment, the corresponding value is smaller than or equal to the total number of transmission receiving points connected to the terminal device.

Further, if a terminal device is connected to M transmission receiving points, the index of these transmission receiving points has a value less than or equal to M. For example, the index of the transmission reception point may have a value between 1-M (including 1 and M).

In practical application, the network device can acquire the transmission receiving point connected with a terminal device, and the terminal device can also acquire the transmission receiving point connected with the terminal device. The network device may generate indices for each transmission receiver point, such as trpscambid 1, trpscambid 2 \8230andtrpscambid. For example, the transmission receiving points may be named sequentially according to the sequence of the terminal devices accessing the transmission receiving points. Alternatively, the terminal device may also generate an index of the connected transmission receiving points in the same manner.

The transmission receiving points connected to a terminal device may be named in sequence by using a numerical value, so that the index of the transmission receiving points has a corresponding numerical value less than or equal to the total number of the transmission receiving points connected to the terminal device.

In an alternative embodiment, the direction of the cyclic shift is the upper or lower bits of the original scrambling code sequence.

When the scrambling code sequence corresponding to the transmission receiving point is generated, the original scrambling code sequence can be subjected to cyclic displacement, and the specific direction of the cyclic displacement can be the high-order direction of the original scrambling code sequence, namely, the cyclic displacement is from the low order to the high order. The direction of the cyclic shift can also be the lower direction of the original scrambling code sequence, i.e. from higher to lower.

The above method may be adopted when the network device generates the scrambling code sequence corresponding to the transmission receiving point, and the terminal device may also generate the scrambling code sequence corresponding to the transmission receiving point based on the above method.

Specifically, the number of bit shifts may be determined based on any of the manners described above.

In an alternative embodiment, a radio resource control layer (RRC) may be included in the network device. The index of the transmission reception point may be configured by the radio resource control layer. For example, if a plurality of transmission receiving points are provided in the network device, the indexes of the transmission receiving points may be configured by the radio resource control layer.

In an alternative embodiment, a media access control layer (MAC) may be included in the network device. The index of the transmission reception point may be configured by the medium access control layer. For example, if a plurality of transmission receiving points are provided in the network device, the indexes of the transmission receiving points may be configured by the medium access control layer.

In an alternative embodiment, a physical layer may be included in the network device. The index of the transmission reception point may be configured by the physical layer. For example, if a plurality of transmission receiving points are provided in the network device, the physical layer may configure the indexes of the transmission receiving points.

Fig. 3 is a flowchart of a signal processing method according to an exemplary embodiment of the present application.

The method provided by the present application can be applied to a terminal device, such as the terminal device 11 shown in fig. 1.

As shown in fig. 3, the method provided by the present application may include:

step 301, receiving a scrambled signal sent by a transmission receiving point, wherein the scrambled signal is obtained by scrambling a signal to be sent according to a scrambling sequence corresponding to the transmission receiving point.

When the transmission receiving point sends a signal to the terminal device, the scrambling sequence corresponding to the transmission receiving point can be used to scramble the signal to be sent, so as to obtain a scrambled signal, and then the scrambled signal is sent to the terminal device, so that the terminal device can receive the scrambled signal.

Optionally, each transmission receiving point may have a corresponding scrambling sequence, and the scrambling sequence may be determined by the network device for the transmission receiving point.

The original scrambling code sequence can be processed according to the index of the transmission receiving point to obtain the scrambling code sequence corresponding to the transmission receiving point.

Further, when the original scrambling code sequence is processed, the original scrambling code sequence may be obtained in advance, and specifically, an original scrambling code sequence seqscrambrgolden may be determined from a golden sequence (a pseudo-random sequence with better characteristics).

Specifically, a mode of determining the original scrambling code sequence from the golden sequence may be agreed with the terminal device in advance, that is, the terminal device may also determine the original scrambling code sequence seqscrambrgolden based on a certain rule.

Further, the original scrambling sequence may be processed according to the index of the transmission receiving point, so as to obtain the scrambling sequence corresponding to the transmission receiving point. For example, when the network device is provided with a plurality of transmission receiving points, the scrambling code sequence corresponding to the transmission receiving point may be determined according to the index of each transmission receiving point.

When the network device sends a signal to the terminal device, the network device may specifically send the signal to the terminal device by using the transmission receiving point set by the network device. The transmission receiving point may scramble a signal to be transmitted to the terminal device by using a scrambling sequence corresponding to the transmission receiving point.

When determining the index of the transmission receiving points, the index of the transmission receiving points may be determined according to the transmission receiving points connected to a terminal device. For example, if M transmission/reception points are connected to one terminal device, the indices of the M transmission/reception points may be trpscambid 1, trpscambid 2 \ 8230and trpscambid.

Assuming that two transmission/reception points are connected to the terminal device ue1, the indices of the two transmission/reception points may be trpsccrambd 1 and trpsccrambd 2, respectively. The network device can process the original scrambling code sequence by using TrpScrambid1 to obtain a first scrambling code sequence, and process the original scrambling code sequence by using TrpScrambid2 to obtain a second scrambling code sequence. When a signal is transmitted to ue1 through a transmission receiving point with the index of TrpScrambiD1, the signal to be transmitted can be scrambled by using the first scrambling sequence to obtain a scrambled signal, and then the scrambled signal is transmitted to ue1. When a signal is transmitted to ue1 through a transmission receiving point with the index TrpScrambiD2, the signal to be transmitted can be scrambled by using the second scrambling sequence, a scrambled signal is obtained, and the scrambled signal is transmitted to ue1.

Step 302, obtaining at least one scrambling code sequence and descrambling the scrambled signal, wherein the scrambling code sequence corresponds to the transmission receiving point.

Each transmission and reception point may have a corresponding scrambling sequence, and the at least one scrambling sequence in this step may be a scrambling sequence corresponding to at least one transmission and reception point in the transmission and reception points to which the terminal device is connected.

Specifically, after receiving the scrambled signal, the terminal device may descramble the scrambled signal according to a scrambling sequence corresponding to each transmission receiving point connected to the terminal device. The scrambling code sequence may be, for example, a scrambling code sequence corresponding to each transmission node obtained by processing the original scrambling code sequence by the terminal device, and the specific processing mode may be the same as the processing mode of the original scrambling code sequence by the network device.

Further, the terminal device may agree with the network side to obtain the original scrambling code sequence, so that the terminal device and the network device obtain the same original scrambling code sequence. For example, the original scrambling code sequence SeqScambrGolden is determined from a golden sequence based on a certain rule.

In practical application, the terminal device may further determine, with the network side, a manner of generating a scrambling sequence corresponding to the transmission receiving point, for example, an index of the transmission receiving point may be used to process an original scrambling sequence, so as to obtain the scrambling sequence corresponding to the transmission receiving point.

The method for determining the transmission receiver point index may be to name the currently connected transmission receiver points in sequence by using numbers, for example, a terminal device is connected with M transmission receiver points, and the indexes of the M transmission receiver points may be trpscambid 1, trpscambid 2 \8230andtrpscambid, respectively.

In another mode, the network side may also configure an index of the transmission receiving point for the terminal device. Optionally, the index of the transmission receiving point may be configured by any one of the following manners: the index of each transmission receiving point is adjusted rapidly and dynamically through radio resource control layer (RRC) configuration, medium access control layer (MAC) configuration and physical layer configuration. The terminal device may obtain an index configured by the radio resource control layer or the medium access control layer or the physical layer.

Optionally, the network side may send the index of the transmission receiving point to the terminal device, for example, send the index of the transmission receiving point to which the terminal device is connected to the terminal device through the radio resource control layer, the media access control layer, or other modules in the physical layer or the network side. For example, when the terminal device accesses a transmission receiving point, the network side may send the index of the transmission receiving point to the terminal device.

The terminal device may further maintain an index list in which indexes of currently connected transmission receiving points are recorded. When the terminal device receives the scrambled signal, the scrambled signal can be descrambled by using the recorded index of the transmission receiving point.

Step 303, determining a transmission receiving point for transmitting the scrambled signal according to the descrambling result.

If descrambling of the scrambled signal is successful based on a connected point of transmission and reception, the point of transmission and reception may be used as the point of transmission and reception for transmitting the scrambled signal.

Optionally, if the descrambled signal is successfully verified, the transmission receiving point corresponding to the scrambling code sequence is the transmission receiving point sending the scrambled signal.

Specifically, if the verification succeeds when the descrambled signal is verified through the scrambling code sequence corresponding to a transmission receiving point, the descrambling may be considered to be successful, and at this time, the transmission receiving point may be determined to be the transmission receiving point that sent the scrambled signal. If the verification fails when the descrambled signal is verified, the descrambling is considered to fail, and the transmission receiving point is not the transmission receiving point which sends the scrambled signal. In practical applications, a CRC (Cyclic Redundancy Check) code may be included in the scrambled signal or the descrambled signal. The terminal device can perform check processing according to the descrambled signal and the CRC check code, and if the check is passed, the descrambling can be considered to be successful.

In this way, the terminal device can identify the transmission reception point from which the scrambled signal was transmitted.

Optionally, after identifying the transmission receiving point from which the scrambled signal is sent, the terminal device may send a response signal to the transmission receiving point, so as to respond to the received scrambled signal. The specific response signal may be determined according to the descrambled signal that is descrambled successfully.

The signal processing method provided by the embodiment is applied to terminal equipment, and comprises the following steps: receiving a scrambled signal sent by a transmission receiving point, wherein the scrambled signal is obtained by scrambling a signal to be sent according to a scrambling sequence corresponding to the transmission receiving point, acquiring at least one scrambling sequence and descrambling the scrambled signal, the scrambling sequence corresponds to the transmission receiving point, and determining the transmission receiving point for sending the scrambled signal according to a descrambling result. When the transmission receiving point sends the scrambled signal to the terminal device, the terminal device can descramble the scrambled signal according to the scrambling code sequence corresponding to the transmission receiving point, and then identify the transmission receiving point sending the scrambled signal, so that the signal can be responded. This method is simple and easy to implement, and enables the terminal device to effectively identify the transmission source corresponding to the received signal.

In an alternative embodiment, the scrambling sequence is obtained by processing an original scrambling sequence according to an index of a transmission receiving point.

Specifically, the scrambling code sequence corresponding to the transmission receiving point is obtained by processing the original scrambling code sequence according to the index of the transmission receiving point. For example, the network device may process the original scrambling sequence according to the index of the transmission receiving point to obtain a scrambling sequence corresponding to the transmission receiving point, and when the transmission receiving point is used to transmit a signal to the terminal, the scrambling sequence corresponding to the transmission receiving point may be used to scramble the signal to be transmitted.

Further, the original scrambling sequence may be processed according to the index of the transmission receiving point, so as to obtain the scrambling sequence corresponding to the transmission receiving point. For example, when the network device has multiple transmission receiving points, the network device may determine, according to the index of each transmission receiving point, a scrambling sequence corresponding to the transmission receiving point, for example, the network device obtains, according to the trpscambid, a scrambling sequence corresponding to an index m.

In practical applications, the scrambling sequence applied to the PDSCH at different transmission reception points may be indicated by the trpsccrambd of the transmission reception point. When determining the index of the transmission receiving point, the network device may determine the index of the transmission receiving point according to the transmission receiving point connected to a terminal device. For example, if M transmission/reception points are connected to one terminal device, the indices of the M transmission/reception points may be trpscambid 1, trpscambid 2 \ 8230and trpscambid.

In one mode, the index of the transmission receiving point may have a numerical value, and the numerical value may be directly used as the number of shift bits. For example, if the index of the transmission reception point is trpscambid 1, the number of bits is 1.

In another mode, a corresponding relationship between the transmission and reception point index and the value may be preset, and a table may be looked up according to the transmission and reception point index to determine the corresponding value, and the bit shift may be a value corresponding to the transmission and reception point index. Optionally, the corresponding relationship may be synchronized to the terminal device, so that the terminal device can determine a corresponding numerical value according to the index of the connected transmission receiving point. For example, when the transmission receiving point index is a, the corresponding value may be 1.

When the original scrambling code sequence is processed, the original scrambling code sequence can be circularly displaced by using the displacement bit number indicated by the index of the transmission receiving point, and then the scrambling code sequence corresponding to the transmission receiving point is obtained. That is, the scrambling code sequence corresponding to the transmission/reception point is the original scrambling code sequence cyclically shifted by the shift number indicated by the index of the transmission/reception point. For example, if the bit shift number indicated by a tx/rx point index is m, the original scrambling code sequence is cyclically shifted by m bits to obtain the scrambling code sequence corresponding to the tx/rx point.

When the terminal device descrambles the scrambled signal according to the index of the transmission receiving point, the original scrambling code sequence can also be circularly shifted by using the shift digit, and then the scrambling code sequence corresponding to the transmission receiving point is obtained.

In an alternative embodiment, the index has a corresponding value, and the shift bit is a product of the value and a predetermined value.

The index of the transmission receiving point may have a value, for example, the index of the transmission receiving point is trpscambid 1, and the index has a value of 1. A preset numerical value N can also be preset, wherein N is a positive integer. The bit shift number may be a product of an index of the transmission receiving point with a corresponding value and a preset value.

Specifically, if the index of the transmission receiving point has a value m and the predetermined value is N, the bit shift number is equal to the product of m and N. When the network device processes the original scrambling code sequence, the product can be used to carry out cyclic displacement on the original scrambling code sequence, and then the scrambling code sequence corresponding to the transmission receiving point is obtained. That is, the scrambling sequence is the original scrambling sequence cyclically shifted by the product between m and N.

In an optional implementation manner, the corresponding numerical value is smaller than or equal to the total number of transmission receiving points connected with the terminal device.

Further, if a terminal device is connected to M transmission receiving points, the index of these transmission receiving points has a value less than or equal to M. For example, the index of the transmission reception point may have a value between 1 and M (including 1 and M).

In practical application, the network side can acquire the transmission receiving point connected with a terminal device, and the terminal device can also acquire the transmission receiving point connected with the terminal device. The network may generate indices for each transmission receiver point, such as TrpScrambiD1, trpScrambiD2 \8230andTrpScrambiD. For example, the transmission receiving points may be named sequentially according to the sequence of the terminal devices accessing the transmission receiving points. Alternatively, the terminal device may also generate an index of the connected transmission receiving points in the same manner.

The transmission receiving points connected to a terminal device may be named in sequence by using numerical values, so that the index of the transmission receiving points has a corresponding numerical value less than or equal to the total number of the transmission receiving points connected to the terminal device.

Specifically, the number of bit shifts may be determined based on any of the above-described manners.

Fig. 4 is a diagram of another application scenario of the present application.

As shown in fig. 4, the terminal device 41 may be connected to multiple transmission/reception points 42 at the same time, and these transmission/reception points 42 may transmit signals to the terminal device 41 based on a Physical Downlink Shared Channel (PDSCH).

Wherein, in the communication system, a control device 43 is further included, and the control device 43 is connected with the transmission receiving point 42.

The transmission receiving point 42 may scramble a signal to be transmitted, and then transmit the obtained scrambled signal to the terminal device 41. In particular, the transmission receiving point 42 may scramble the signal to be transmitted with a scrambling sequence, which may be determined by the control device 43.

Fig. 5 is a flowchart of a signal processing method according to a third exemplary embodiment of the present application.

The method provided by the present application may be applied in a control device, such as the control device 43 shown in fig. 4.

As shown in fig. 5, the method provided by the present application may include:

step 501, processing the original scrambling sequence according to the index of the transmission receiving point to obtain the scrambling sequence corresponding to the transmission receiving point.

The control device may obtain an original scrambling sequence, and may specifically determine an original scrambling sequence seqscrambrgolden from a golden sequence (a pseudo-random sequence with better characteristics).

Specifically, the control device and the terminal device may agree on a manner of determining an original scrambling code sequence from the golden sequence, that is, the terminal device may also determine the original scrambling code sequence seqscrambrgolden based on a certain rule.

Further, the control device may process the original scrambling sequence according to the index of the transmission receiving point to obtain the scrambling sequence of the transmission receiving point. For example, if a plurality of transmission receiving points are connected to the control device, the scrambling code sequence corresponding to the transmission receiving point may be determined according to the index of each transmission receiving point.

In practical applications, the control device may indicate scrambling sequences applied to PDSCHs at different transmission reception points by the trpscambid of the transmission reception point. When determining the index of the transmission receiving point, the control device may determine the index of the transmission receiving points according to the transmission receiving points connected to a terminal device. For example, if M transmission receiver points are connected to one terminal device, the indices of the M transmission receiver points may be trpscambid 1, trpscambid 2 \8230, and trpscambid.

Specifically, the control device may process the original scrambling sequence by using a value M (M is any one of 1 to M) included in the transmission reception point index. For example, for a transmission receiving point with an index of trpscambid 1, the control device may process the original scrambling sequence with a value of "1" to obtain a scrambling sequence corresponding to the transmission receiving point with the index of trpscambid 1. For the transmission and reception point with the index of trpscambid 2, the control device may process the original scrambling sequence with the value "2" to obtain the scrambling sequence corresponding to the transmission and reception point with the index of trpscambid 2.

The value or product included in the above-mentioned index of the transmission reception point may be used as the number of bits to cyclically shift the original scrambling code sequence.

Step 502, sending a scrambling code sequence corresponding to the transmission receiving point, wherein the scrambling code sequence corresponding to the transmission receiving point is used for scrambling a signal to be sent to a terminal device.

The control device may send the determined scrambling sequence to the corresponding transmission receiving point, and specifically may send the determined scrambling sequence to the transmission receiving point corresponding to the index. For example, the control device obtains a scrambling code sequence according to the trpscambidm, and sends the scrambling code sequence to a transmission receiving point with the index of trpscambidm.

In an optional implementation manner, when the control device sends the scrambling code sequence to the transmission receiving point, the control device may also send an index of the terminal device. The control device determines the indexes of the transmission receiving points according to the transmission receiving points connected with the terminal device, and then processes the original scrambling code sequence based on the indexes of the transmission receiving points.

When the transmission receiving point sends a signal to the terminal device, the received scrambling sequence may be used to scramble the signal to be sent to the terminal device, and then the scrambled signal is sent to the terminal device.

Specifically, after receiving the scrambling signal, the terminal device may process the original scrambling sequence according to the index of each transmission receiving point connected to the terminal device, to obtain at least one scrambling sequence, and the specific processing mode may be the same as the processing mode of the control device on the original scrambling sequence.

Further, the terminal device may descramble the received scrambled signal by using the obtained scrambling code sequence corresponding to the transmission receiving point, and if descrambling is successful, the transmission receiving point corresponding to the scrambling code sequence is the transmission receiving point that sent the scrambled signal.

The signal processing method provided by the embodiment is applied to control equipment, and comprises the following steps: processing an original scrambling sequence according to the index of a transmission receiving point to obtain a scrambling sequence corresponding to the transmission receiving point; and sending the scrambling code sequence corresponding to the transmission receiving point, wherein the scrambling code sequence corresponding to the transmission receiving point is used for scrambling a signal to be sent to a terminal device. In this way, when the transmission receiving point sends the scrambled signal to the terminal device, the terminal device may descramble the scrambled signal according to the index of the transmission receiving point and the original scrambling sequence, and then identify the transmission receiving point sending the scrambled signal, so as to be able to respond to the signal.

In one mode, the index of the transmission receiving point may have a numerical value, and the numerical value may be directly used as the number of shift bits. For example, if the index of the transmission receiving point is trpscambid 1, the bit shift number is 1.

When the original scrambling code sequence is processed, the original scrambling code sequence can be circularly displaced by using the displacement number indicated by the index of the transmission receiving point, and then the scrambling code sequence corresponding to the transmission receiving point is obtained. That is, the scrambling code sequence corresponding to the transmission/reception point is the original scrambling code sequence cyclically shifted by the bit shift number indicated by the index of the transmission/reception point. For example, if the bit shift number indicated by a tx/rx point index is m, the original scrambling code sequence is cyclically shifted by m bits to obtain the scrambling code sequence corresponding to the tx/rx point.

The index of the transmission receiving point may have a value, for example, the index of the transmission receiving point is trpscambid 1, and the index has a value of 1. A preset numerical value N can also be preset, wherein N is a positive integer. The bit shift number may be a product of an index of a transmission receiving point having a corresponding value and a preset value.

Specifically, if the index of the transmission receiving point has a value m and the predetermined value N, the bit shift number is equal to the product of m and N. When the network device processes the original scrambling code sequence, the product can be used to perform cyclic displacement on the original scrambling code sequence, and then the scrambling code sequence corresponding to the transmission receiving point is obtained. That is, the scrambling sequence is the original scrambling sequence cyclically shifted by the product between m and N.

In practical application, the control device can acquire the transmission receiving point connected with a terminal device, and the terminal device can also acquire the transmission receiving point connected with the terminal device. The control device may generate indices for each of the transmitted receiver points, such as trpscambid 1, trpscambid 2 \8230, trpscambid in that order. For example, the names may be sequentially named according to the order in which the terminal device accesses the transmission receiving points. Alternatively, the terminal device may also generate an index of the connected transmission receiving points in the same manner.

The above manner may be adopted when the control device generates the scrambling code sequence corresponding to the transmission receiving point, and the terminal device may also generate the scrambling code sequence corresponding to the transmission receiving point based on the above manner.

Fig. 6 is a flowchart of a signal processing method according to a fourth exemplary embodiment of the present application.

The method provided by the present application may be applied in a transmission reception point, such as the transmission reception point 42 shown in fig. 4.

As shown in fig. 6, the method provided by the present application may include:

step 601, receiving a scrambling code sequence sent by a control device, wherein the scrambling code sequence is obtained by processing an original scrambling code sequence according to an index of a transmission receiving point.

The control device may send a scrambling sequence to the transmission receiving point, and the transmission receiving point may scramble the signal by using the scrambling sequence when sending the signal to the terminal device.

Specifically, the scrambling code sequence is obtained by processing the original scrambling code sequence according to the index of the transmission receiving point.

The control device may obtain the original scrambling sequence, and may specifically determine an original scrambling sequence seqscrambrgolden from a golden sequence (a pseudo-random sequence with better characteristics).

Further, the control device may process the original scrambling sequence according to the index of the transmission receiving point to obtain a scrambling sequence corresponding to the transmission receiving point, and send the scrambling sequence to the transmission receiving point, so that the transmission receiving point receives the corresponding scrambling sequence. For example, if the control device is connected to a plurality of transmission receiving points, the control device may determine a scrambling sequence corresponding to each transmission receiving point according to the index of each transmission receiving point, and send the scrambling sequence corresponding to the transmission receiving point.

Specifically, the control device may process the original scrambling sequence by using a value M (M is any one of 1 to M) included in the transmission reception point index. For example, for a transmission and reception point with an index of trpscambid 1, the control device may process the original scrambling sequence with a value of "1" to obtain a scrambling sequence corresponding to the transmission and reception point with an index of trpscambid 1. For a transmission reception point with an index of trpscambid 2, the control device may process the original scrambling sequence with a value "2" to obtain a scrambling sequence corresponding to the index of trpscambid 2.

Further, for example, the original scrambling code sequence may be cyclically shifted by using the values included in the index of the transmission receiving point, so as to obtain the scrambling code sequence. For another example, the product of the value included in the transmission receiving point index and a preset value N may be calculated, and the original scrambling code sequence may be cyclically shifted by using the product, so as to obtain the scrambling code sequence.

In practical application, the circulation direction can be circulation right movement, namely, the moved low position is placed to the high position of the number; the circulation direction can also circularly move left, namely, the moved high bit is put to the low bit of the number. For example, for sequence 1234, the sequence shifted to the right by 1 bit in the cycle is 4123, and the sequence shifted to the left by 1 bit in the cycle is 2341.

Step 602, scrambling the signal to be sent to the terminal device according to the scrambling code sequence to obtain a scrambled signal.

Step 603, sending the scrambled signal to a terminal device.

When the transmission receiving point sends a signal to the terminal device, the signal to be sent to the terminal device may be scrambled by using the received scrambling sequence, and then the scrambled signal is sent to the terminal device.

Specifically, scrambling is a processing method of digital signals, that is, a scrambling sequence is multiplied by a signal to be sent to a terminal device, so as to obtain a scrambled signal. The scrambled signal is scattered in time and frequency compared to the signal to be transmitted to the terminal device.

For example, the terminal ue1 is connected with two transmission receiving points, and the indexes of the two transmission receiving points may be trpscambid 1 and trpscambid 2, respectively. The control device can process the original scrambling code sequence by TrpScrambiD1 to obtain a first scrambling code sequence, and process the original scrambling code sequence by TrpScrambiD2 to obtain a second scrambling code sequence. When the transmission receiving point with the index of TrpScrambiD1 transmits a signal to ue1, the signal to be transmitted can be scrambled by using the first scrambling sequence to obtain a scrambled signal, and then the scrambled signal is transmitted to ue1. When the transmission receiving point with the index of TrpScrambiD2 transmits a signal to ue1, the signal to be transmitted can be scrambled by using the second scrambling sequence, a scrambled signal is obtained, and the scrambled signal is transmitted to ue1.

Further, the terminal device may descramble the received scrambled signal by using the obtained scrambling sequence, and if descrambling is successful, the index of the transmission receiving point corresponding to the scrambling sequence may be used as the index of the transmission receiving point that transmits the scrambled signal.

The signal processing method provided by the embodiment is applied to a transmission receiving point, and the method comprises the following steps: receiving a scrambling code sequence sent by control equipment, wherein the scrambling code sequence is obtained by processing an original scrambling code sequence according to an index of a transmission receiving point; scrambling a signal to be sent to the terminal equipment according to the scrambling code sequence to obtain a scrambled signal; and sending the scrambled signal to the terminal equipment. When the transmission receiving point sends the scrambled signal to the terminal device, the terminal device can descramble the scrambled signal according to the index of the transmission receiving point and the original scrambling sequence, and then identify the transmission receiving point sending the scrambled signal, so that the signal can be responded.

In one mode, the index of the transmission receiving point may have a value, and the value may be directly used as the number of shift bits. For example, if the index of the transmission receiving point is trpscambid 1, the bit shift number is 1.

When the original scrambling code sequence is processed, the original scrambling code sequence can be circularly displaced by using the displacement bit number indicated by the index of the transmission receiving point, and then the scrambling code sequence corresponding to the transmission receiving point is obtained. That is, the scrambling code sequence corresponding to the transmission/reception point is the original scrambling code sequence cyclically shifted by the shift number indicated by the index of the transmission/reception point. For example, if the bit shift number indicated by a transmission receiving point index is m, the original scrambling code sequence is cyclically shifted by m bits, and the scrambling code sequence corresponding to the transmission receiving point is obtained.

Fig. 7 is a block diagram of a signal processing apparatus according to a first exemplary embodiment of the present application.

As shown in fig. 7, the signal processing apparatus provided in this embodiment is applied to a network device, and the apparatus includes:

the scrambling module 71 is configured to scramble a signal to be sent to the terminal device according to a scrambling sequence corresponding to the transmission receiving point to obtain a scrambled signal;

a sending module 72, configured to send the scrambled signal to the terminal device.

The specific principle, implementation manner, and effect of the apparatus provided in this embodiment are similar to those of the embodiment shown in fig. 2, and are not described herein again.

On the basis of the above embodiment, optionally, the scrambling module 71 is further configured to: and processing the original scrambling sequence by using the index of the transmission receiving point to obtain a scrambling sequence corresponding to the transmission receiving point.

Optionally, the index is used to indicate a bit shift number, and the scrambling code sequence is an original scrambling code sequence circularly shifted by the bit shift number.

Optionally, the index has a corresponding numerical value, and the shift bit is a product between the numerical value and a preset numerical value.

Optionally, the corresponding numerical value is less than or equal to the total number of transmission receiving points connected to the terminal device.

Optionally, the direction of the cyclic shift is a high order or a low order of the original scrambling code sequence.

Optionally, the network device includes a radio resource control layer;

and the radio resource control layer configures the index of the transmission receiving point.

Optionally, the network device includes a media access control layer;

the medium access control layer configures an index of the transmission receiving point.

Optionally, the network device includes a physical layer;

the physical layer configures an index of the transmission reception point.

Fig. 8 is a block diagram of a signal processing apparatus according to a second exemplary embodiment of the present application.

As shown in fig. 8, the signal processing apparatus provided in this embodiment is applied to a terminal device, and the apparatus includes:

a receiving module 81, configured to receive a scrambled signal sent by a transmission receiving point, where the scrambled signal is obtained by scrambling a signal to be sent according to a scrambling sequence corresponding to the transmission receiving point;

a descrambling module 82, configured to obtain at least one scrambling code sequence and descramble the scrambled signal, where the scrambling code sequence corresponds to the transmission receiving point;

a determining module 83, configured to determine, according to the descrambling result, a transmission receiving point for sending the scrambled signal.

The specific principle, implementation manner, and effect of the signal processing apparatus provided in this embodiment are similar to those of the embodiment shown in fig. 3, and are not described herein again.

On the basis of the foregoing embodiment, optionally, the determining module 83 is specifically configured to: and if the descrambled signal is successfully verified, the transmission receiving point corresponding to the scrambling code sequence is the transmission receiving point for sending the scrambling signal.

Optionally, the scrambling code sequence is obtained by processing an original scrambling code sequence according to the index of the transmission receiving point.

Optionally, the direction of the cyclic shift is the high order or the low order of the original scrambling code sequence.

Optionally, the receiving module 81 is further configured to: configuring the index of the transmission receiving point by any one of the following methods: configured through a radio resource control layer, configured through a medium access control layer, configured through a physical layer.

Fig. 9 is a block diagram of a signal processing apparatus according to a third exemplary embodiment of the present application.

As shown in fig. 9, the signal processing apparatus provided in this embodiment is applied to a control device, and the apparatus includes:

a processing module 91, configured to process an original scrambling sequence according to an index of a transmission receiving point, to obtain a scrambling sequence corresponding to the transmission receiving point;

a sending module 92, configured to send a scrambling sequence corresponding to the transmission receiving point, where the scrambling sequence corresponding to the transmission receiving point is used to scramble a signal to be sent to a terminal device.

The specific principle, implementation and effect of the device provided by this embodiment are similar to those of the embodiment shown in fig. 5, and are not described herein again.

On the basis of the foregoing embodiment, optionally, the index is used to indicate a bit shift number, and the scrambling sequence is an original scrambling sequence circularly shifted by the bit shift number.

Fig. 10 is a block diagram of a signal processing apparatus according to a fourth exemplary embodiment of the present application.

As shown in fig. 10, the signal processing apparatus provided in this embodiment is applied to a transmission receiving point, and the apparatus includes:

a receiving module 1001, configured to receive a scrambling code sequence sent by a control device, where the scrambling code sequence is obtained by processing an original scrambling code sequence according to an index of a transmission receiving point;

a scrambling module 1002, configured to scramble a signal to be sent to the terminal device according to the scrambling sequence, to obtain a scrambled signal;

a sending module 1003, configured to send the scrambled signal to a terminal device.

The specific principle, implementation and effect of the device provided by this embodiment are similar to those of the embodiment shown in fig. 6, and are not described herein again.

On the basis of the foregoing embodiment, optionally, the index is used to indicate a bit shift number, and the scrambling code sequence is an original scrambling code sequence cyclically shifted by the bit shift number.

Fig. 11 is a block diagram of a network device according to an exemplary embodiment of the present application.

As shown in fig. 11, the network device provided in this embodiment includes:

a memory 111;

a processor 112;

and a computer program stored on the memory 111 and executable on the processor 112, the program implementing any of the signal processing methods based on a network device as described above when executed by the processor 112.

The network device shown in fig. 11 may execute the method provided in the embodiment shown in fig. 2, and reference may be made to relevant descriptions of the foregoing embodiments for parts not described in detail in this embodiment. The implementation process and technical effect of the technical solution refer to the description in the above embodiments, and are not described herein again.

Fig. 12 is a block diagram of a terminal device according to an exemplary embodiment of the present application.

As shown in fig. 12, the terminal device provided in this embodiment includes:

a memory 121;

a processor 122;

and a computer program stored on the memory 121 and executable on the processor 122, the program implementing any one of the signal processing methods based on a terminal device as described above when executed by the processor 122.

The terminal device shown in fig. 12 may execute the method provided in the embodiment shown in fig. 3, and reference may be made to the related description of the above embodiment for a part not described in detail in this embodiment. The implementation process and technical effect of the technical solution refer to the description in the above embodiments, and are not described herein again.

Fig. 13 is a block diagram of a control device according to an exemplary embodiment of the present application.

As shown in fig. 13, the present embodiment provides a control apparatus including:

a memory 131;

a processor 132;

and a computer program stored on the memory 131 and executable on the processor 132, the program implementing any one of the signal processing methods based on a control device as described above when executed by the processor 132.

The control device shown in fig. 13 may execute the method provided in the embodiment shown in fig. 5, and reference may be made to the related description of the above embodiment for a part not described in detail in this embodiment. The implementation process and technical effect of the technical solution refer to the description in the above embodiments, and are not described herein again.

As shown in fig. 14, the transmission receiving point provided in this embodiment includes:

a memory 141;

a processor 142;

and a computer program stored on the memory 141 and executable on the processor 142, the program implementing any one of the signal processing methods based on the transmission reception point as described above when executed by the processor 142.

The transmission receiving point shown in fig. 14 may execute the method provided in the embodiment shown in fig. 6, and reference may be made to the related description of the above embodiment for a part not described in detail in this embodiment. The implementation process and technical effect of the technical solution refer to the description in the above embodiments, and are not described herein again.

The embodiment of the application further provides a signal processing system, which comprises terminal equipment and network equipment. The terminal device may include at least one terminal device shown in fig. 12, and the network device may include at least one network device shown in fig. 11.

The embodiment of the application further provides a signal processing system, which comprises terminal equipment and network equipment. Wherein, the network device may include at least one transmission receiving point as shown in fig. 14, and the terminal device may include at least one terminal device as shown in fig. 12.

Optionally, the network device may further include: at least one control device as shown in fig. 13.

The functions, the execution processes, and the technical effects of the components in the signal processing system provided in the embodiment of the present application may refer to the descriptions in the foregoing embodiments, and are not described herein again.

The present embodiments also provide a computer-readable storage medium, having stored thereon a computer program,

the computer program is executed by a processor to implement any of the signal processing methods as described above.

The present embodiment also provides a computer program comprising a program code for executing any of the signal processing methods described above when the computer program is run by a computer.

An embodiment of the present application further provides a chip, which includes a memory and a processor, where the memory is used to store a computer program, and the processor is used to call and run the computer program from the memory, so that a device in which the chip is installed executes the method described in the above various possible embodiments.

Those of ordinary skill in the art will understand that: all or a portion of the steps of implementing the above-described method embodiments may be performed by hardware associated with program instructions. The foregoing program may be stored in a computer-readable storage medium. When executed, the program performs steps comprising the method embodiments described above; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one of 8230, and" comprising 8230does not exclude the presence of additional like elements in a process, method, article, or apparatus comprising the element.

It should be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope herein. The word "if," as used herein, may be interpreted as "at \8230; \8230when" or "when 8230; \823030when" or "in response to a determination," depending on the context. Also, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used in this specification, specify the presence of stated features, steps, operations, elements, components, items, species, and/or groups, but do not preclude the presence, or addition of one or more other features, steps, operations, elements, components, species, and/or groups thereof. The terms "or" and/or "as used herein are to be construed as inclusive or meaning any one or any combination. Thus, "a, B or C" or "a, B and/or C" means "any of the following: a; b; c; a and B; a and C; b and C; A. b and C ". An exception to this definition will occur only when a combination of elements, functions, steps or operations are inherently mutually exclusive in some way.

It should be understood that, although the steps in the flowcharts in the above embodiments are shown in sequence as indicated by the arrows, the steps are not necessarily performed in sequence as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages that are not necessarily performed at the same time, but may be performed at different times, in different orders, and may be performed alternately or at least partially with respect to other steps or sub-steps of other steps.

Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims

A signal processing method, wherein the method is applied to a network device, and the method comprises the following steps:

scrambling a signal to be sent to the terminal equipment according to a scrambling sequence corresponding to the transmission receiving point to obtain a scrambled signal;

and sending the scrambled signal to the terminal equipment.
The method of claim 1, further comprising:

and processing the original scrambling sequence by using the index of the transmission receiving point to obtain the scrambling sequence corresponding to the transmission receiving point.
The method of claim 2, wherein the index is indicative of a number of bit shifts, and the scrambling sequence is an original scrambling sequence cyclically shifted by the number of bit shifts.
The method of claim 3, wherein the index has a corresponding numerical value, and the number of shifts is a product between the numerical value and a preset numerical value.
The method of claim 4, wherein the corresponding number is less than or equal to a total number of transmission reception points connected to the terminal device.
A method according to any of claims 3 to 5, wherein the direction of the cyclic shift is the upper or lower bits of the original scrambling code sequence.
The method of any of claims 2-5, wherein the network device comprises a radio resource control layer;

the method further comprises the following steps:

the radio resource control layer configures an index of the transmission receiving point.
The method of any of claims 2-5, wherein the network device comprises a media access control layer;

the method further comprises the following steps:

the medium access control layer configures an index of the transmission receiving point.
The method of any of claims 2-5, wherein the network device comprises a physical layer;

the method further comprises the following steps:

the physical layer configures an index of the transmission reception point.
A signal processing method is applied to a terminal device, and comprises the following steps:

receiving a scrambling signal sent by a transmission receiving point, wherein the scrambling signal is obtained by scrambling a signal to be sent according to a scrambling sequence corresponding to the transmission receiving point;

acquiring at least one scrambling code sequence and descrambling the scrambled signal, wherein the scrambling code sequence corresponds to the transmission receiving point;

and determining a transmission receiving point for sending the scrambled signal according to the descrambling result.
The method of claim 10, wherein the determining a transmission reception point for transmitting the scrambled signal according to a descrambling result comprises:

and if the descrambled signal is successfully verified, the transmission receiving point corresponding to the scrambling code sequence is the transmission receiving point for sending the scrambling signal.
The method of claim 10, wherein the scrambling sequence is derived by processing an original scrambling sequence according to an index of the transmission receiving point.
The method of claim 12, wherein the index is indicative of a number of bit shifts, and the scrambling sequence is an original scrambling sequence cyclically shifted by the number of bit shifts.
The method of claim 13, wherein the index has a corresponding numerical value, and the number of shifts is a product between the numerical value and a preset numerical value.
The method of claim 14, wherein the corresponding number is less than or equal to a total number of transmission reception points connected to the terminal device.
The method of claim 14, wherein the direction of the cyclic shift is either the upper or lower bits of the original scrambling code sequence.
The method according to any one of claims 12-16, further comprising:

configuring the index of the transmission receiving point by any one of the following methods:

configured through a radio resource control layer, configured through a medium access control layer and configured through a physical layer.
A signal processing method, wherein the method is applied to a control device, the method comprising:

processing an original scrambling sequence according to the index of a transmission receiving point to obtain a scrambling sequence corresponding to the transmission receiving point;

and sending the scrambling code sequence corresponding to the transmission receiving point, wherein the scrambling code sequence corresponding to the transmission receiving point is used for scrambling a signal to be sent to a terminal device.
The method of claim 18, wherein the index is indicative of a number of bit shifts, and the scrambling sequence is an original scrambling sequence cyclically shifted by the number of bit shifts.
The method of claim 19, wherein the index has a corresponding numerical value, and the number of shifts is a product between the numerical value and a preset numerical value.
The method of claim 20, wherein the corresponding number is less than or equal to a total number of transmission reception points connected to the terminal device.
A method according to any of claims 19 to 21, wherein the direction of the cyclic shift is the upper or lower bits of the original scrambling code sequence.
A signal processing method, applied to a transmission receiving point, the method comprising:

receiving a scrambling code sequence sent by control equipment, wherein the scrambling code sequence is obtained by processing an original scrambling code sequence according to an index of a transmission receiving point;

scrambling the signal to be sent to the terminal equipment according to the scrambling code sequence to obtain a scrambled signal;

and sending the scrambled signal to terminal equipment.
The method of claim 23, wherein the index is indicative of a number of bit shifts, and the scrambling sequence is an original scrambling sequence cyclically shifted by the number of bit shifts.
The method of claim 24, wherein the index has a corresponding numerical value, and the number of shifts is a product between the numerical value and a preset numerical value.
The method of claim 25, wherein the corresponding value is less than or equal to a total number of transmission reception points connected to the terminal device.
The method according to any of claims 24-26, wherein the direction of the cyclic shift is the upper or lower bits of the original scrambling code sequence.
A network device, comprising:

a memory;

a processor;

and a computer program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the method of claim 1.
A terminal device, comprising:

a memory;

a processor;

and a computer program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the method of claim 10.
A control device, comprising:

a memory;

a processor;

and a computer program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the method of claim 18.
A transmission reception point, comprising:

a memory;

a processor;

and a computer program stored on the memory and executable on the processor, the program, when executed by the processor, implementing the method of claim 23.
A signal processing system comprises a terminal device and a network device;

the terminal device comprises at least one terminal device according to claim 29;

the network device comprises at least one network device according to claim 28.
A signal processing system comprises a terminal device and a network device;

the network device comprising at least one transmission reception point according to claim 31;

the terminal device comprises at least one terminal device according to claim 29.
The system of claim 33, wherein the network device further comprises: at least one control device according to claim 30.
A computer-readable storage medium, in which a computer program is stored,

the computer program is executed by a processor to implement the method as claimed in claim 1.