CN115333707A

CN115333707A - Signal transmission method and device, network equipment and terminal equipment

Info

Publication number: CN115333707A
Application number: CN202110513725.0A
Authority: CN
Inventors: 苏俞婉; 王加庆; 郑方政
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2021-05-11
Filing date: 2021-05-11
Publication date: 2022-11-11

Abstract

The invention provides a signal transmission method, a signal transmission device, network equipment and terminal equipment, wherein the method comprises the following steps: the method comprises the steps that network equipment sends a first signal comprising a first sequence to terminal equipment, wherein the first sequence is used for indicating the paging condition of the terminal equipment and/or the existence condition of TRS on a TRS resource; wherein the generation of the first sequence is related to a first set of parameters comprising at least one of: the terminal group identifier of the terminal device, the terminal subgroup identifier of the terminal device, the cell identifier of the cell in which the terminal device is located, the terminal device identifier of the terminal device, and the tracking reference signal identifier. The invention solves the problem that no solution exists for determining the paging condition of the terminal equipment and/or the TRS existence condition on the TRS resource by the signal based on the sequence at present, and can reduce the power consumption of the terminal equipment.

Description

Signal transmission method and device, network equipment and terminal equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a signal transmission method and apparatus, a network device, and a terminal device.

Background

In a New Radio (NR) system of a fifth generation mobile communication technology (5G), a power saving design of a terminal device (UE) becomes necessary, mainly because the 5G supports a larger bandwidth, a higher throughput, a more complex service, and a more complex processing technology matched with the service. The optimal design of power saving can save the power consumption of the terminal equipment and prolong the service life of a battery, thereby improving the experience of a user, and being very important for 5G industrialization.

In order to reduce the power consumption of the terminal equipment, the terminal equipment can monitor the paging indication information before monitoring the paging message, so that the monitoring of the invalid paging message of the terminal equipment is reduced; the Tracking Reference Signal (TRS) may also be used for channel time-frequency Tracking in a Radio Resource control Idle state (RRC Idle), so as to reduce the number of channels tracked by a Synchronization Signal Block (SSB) in the RRC Idle state, so as to reduce power consumption of the terminal device, and the terminal device needs to determine whether a TRS on a TRS Resource in the RRC Idle state is available, so as to reduce power consumption by the above manner. The paging indication information may be a sequence-based signal, but there is currently no solution for how the sequence-based signal determines the paging situation of the terminal device and/or the TRS presence on the TRS resource.

Disclosure of Invention

The invention provides a signal transmission method, a signal transmission device, network equipment and terminal equipment, and solves the problem that no solution is available for determining the paging condition of the terminal equipment and/or the TRS existence condition on TRS resources based on a sequence signal at present.

An embodiment of the present invention provides a signal transmission method, including:

the method comprises the steps that network equipment sends a first signal comprising a first sequence to terminal equipment, wherein the first sequence is used for indicating the paging condition of the terminal equipment and/or the existence condition of TRS on a TRS resource;

wherein the generation of the first sequence is related to a first set of parameters comprising at least one of: the terminal group identifier of the terminal device, the terminal subgroup identifier of the terminal device, the cell identifier of the cell in which the terminal device is located, the terminal device identifier of the terminal device, and the tracking reference signal identifier.

Optionally, the sending, by the network device, the first signal including the first sequence to the terminal device includes:

the network device transmits a first signal comprising a first sequence to the terminal device on a first resource;

the first resource is a resource corresponding to at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol.

Optionally, the generation of the first sequence is related to a first set of parameters, including:

the first sequence is generated from a second sequence and a third sequence, at least one of the second sequence and the third sequence being related to the first set of parameters;

alternatively, the first and second electrodes may be,

the first sequence is generated by a first pseudo-random sequence whose initialization factor is related to the first set of parameters.

Optionally, the second sequence and the third sequence are each generated by at least one of a set of sequences, the set of sequences including: pseudo-random sequences, orthogonal sequences.

Optionally, for each OFDM symbol: the length of a first part of a first sequence on resources corresponding to the OFDM symbols is M;

the first sequence is generated from a second sequence and a third sequence, including:

the first part of the first sequence is generated by a first part of a second sequence with the length of M and a first part of a third sequence with the length of M; m is a positive integer.

Optionally, for each OFDM symbol: the first part of the first sequence on the resource corresponding to the OFDM symbol comprises a first section of the first sequence with the length of M and a second section of the first sequence with the length of N; m and N are positive integers;

the first section first sequence is generated by a first section second sequence with the length of M and a first section third sequence with the length of M; the second section of first sequence is generated by a second section of second sequence with the length of N and a second section of third sequence with the length of N;

wherein at least one of the first segment second sequence, the second segment second sequence, the first segment third sequence, and the second segment third sequence is related to the first set of parameters.

Optionally, for each OFDM symbol: the first part of first sequences on the resources corresponding to the OFDM symbols comprise a first section of first sequences with the length of M and a second section of first sequences with the length of N; m and N are positive integers;

the first section first sequence is generated by a first section second sequence with the length of M; the second segment first sequence is generated by a second segment second sequence with the length of N and a first part third sequence with the length of N;

wherein at least one of the first segment second sequence, the second segment second sequence, and the first partial third sequence is related to the first set of parameters.

Alternatively, M is 2 ^m And/or N is 2 ⁿ (ii) a m and n are positive integers.

Optionally, when the first resource is a resource corresponding to at least two OFDM symbols:

for different OFDM symbols: the first part of the third sequence corresponding to the first part of the first sequence on the resource corresponding to each OFDM symbol is the same; wherein the first partial third sequence is a partial third sequence that generates the first partial first sequence;

alternatively, the first and second electrodes may be,

a second part of third sequence corresponding to a second part of first sequence on resources corresponding to the first OFDM symbol is different from a third part of third sequence corresponding to a third part of first sequence on resources corresponding to the second OFDM symbol; wherein the first OFDM symbol and the second OFDM symbol are different OFDM symbols of the at least two OFDM symbols, the second partial third sequence is a partial third sequence that generates the second partial first sequence, and the third partial third sequence is a partial third sequence that generates the third partial first sequence.

The embodiment of the invention also provides a signal transmission device, which comprises a memory, a transceiver and a processor;

wherein the memory is used for storing a computer program; the transceiver is used for transceiving data under the control of the processor; the processor is used for reading the computer program in the memory and executing the following operations:

sending a first signal comprising a first sequence to a terminal device, wherein the first sequence is used for indicating the paging condition of the terminal device and/or the existence condition of TRS on a TRS resource;

Optionally, the processor is configured to read the computer program in the memory and perform the following operations:

transmitting a first signal comprising a first sequence to the terminal device on a first resource;

alternatively, the first and second electrodes may be,

An embodiment of the present invention further provides a network device, including:

a sending unit, configured to send a first signal including a first sequence to a terminal device, where the first sequence is used to indicate a paging situation of the terminal device and/or a presence situation of a TRS on a TRS resource of a tracking reference signal;

wherein the generation of the first sequence is related to a first set of parameters comprising at least one of: the terminal group identification of the terminal equipment, the terminal subgroup identification of the terminal equipment, the cell identification of the cell in which the terminal equipment is located, the terminal equipment identification of the terminal equipment and the tracking reference signal identification.

An embodiment of the present invention further provides a processor-readable storage medium, where the processor-readable storage medium stores a computer program, and the computer program is configured to enable the processor to execute the steps in the signal transmission method.

The embodiment of the invention also provides a signal transmission method, which comprises the following steps:

the method comprises the steps that terminal equipment receives a first signal which is sent by network equipment and comprises a first sequence, wherein the first sequence is used for indicating the paging condition of the terminal equipment and/or the existence condition of TRS on a TRS resource;

Optionally, the receiving, by the terminal device, a first signal including a first sequence sent by a network device includes:

the terminal equipment receives a first signal which is sent by the network equipment and comprises a first sequence on a first resource;

alternatively, the first and second electrodes may be,

Optionally, after the terminal device receives a first signal including a first sequence sent by a network device, the method further includes:

if the terminal equipment is determined to have paging according to the first signal, the terminal equipment receives a paging message;

and if the terminal equipment is determined to have no paging according to the first signal, the terminal equipment enters a low power consumption or dormant state.

The embodiment of the invention also provides a signal transmission device, which comprises a memory, a transceiver and a processor; wherein the memory is used for storing computer programs; the transceiver is used for transceiving data under the control of the processor; the processor is used for reading the computer program in the memory and executing the following operations:

receiving a first signal which is sent by network equipment and comprises a first sequence, wherein the first sequence is used for indicating the paging condition of terminal equipment and/or the existence condition of TRS on a TRS resource;

receiving a first signal comprising a first sequence transmitted by the network device on a first resource;

alternatively, the first and second liquid crystal display panels may be,

the first part first sequence is generated by a first part second sequence with the length of M and a first part third sequence with the length of M; m is a positive integer.

the first segment first sequence is generated by a first segment second sequence with the length of M; the second segment first sequence is generated by a second segment second sequence with the length of N and a first part third sequence with the length of N;

alternatively, the first and second electrodes may be,

a second part of a third sequence corresponding to a second part of the first sequence on the resource corresponding to the first OFDM symbol is different from a third part of the third sequence corresponding to a third part of the first sequence on the resource corresponding to the second OFDM symbol; wherein the first OFDM symbol and the second OFDM symbol are different OFDM symbols of the at least two OFDM symbols, the second partial third sequence is a partial third sequence that generates the second partial first sequence, and the third partial third sequence is a partial third sequence that generates the third partial first sequence.

if the terminal equipment is determined to have paging according to the first signal, receiving a paging message;

and if the terminal equipment is determined to have no paging according to the first signal, entering a low power consumption or sleep state.

An embodiment of the present invention further provides a terminal device, including:

a receiving unit, configured to receive a first signal that includes a first sequence and is sent by a network device, where the first sequence is used to indicate a paging situation of a terminal device and/or a presence situation of a TRS on a TRS resource;

The technical scheme of the invention has the beneficial effects that: the network device transmits a first signal comprising a first sequence to the terminal device, the first sequence being generated in relation to a first set of parameters, the first set of parameters comprising at least one of: the terminal group identifier of the terminal equipment, the terminal subgroup identifier of the terminal equipment, the cell identifier of the cell of the terminal equipment, the terminal equipment identifier of the terminal equipment and the tracking reference signal identifier, so that the network equipment and the terminal equipment can determine the paging condition of the terminal equipment and/or the existence condition of TRS on the tracking reference signal TRS resource, and the power consumption of the terminal equipment is favorably reduced.

Drawings

FIG. 1 shows a schematic representation of the basic principle of PEI indication according to an embodiment of the present invention;

FIG. 2 is a flow chart of a signal transmission method according to an embodiment of the present invention;

FIG. 3 shows a schematic diagram of a first sequence generated from a second sequence and a third sequence in accordance with an embodiment of the present invention;

FIG. 4 shows a block diagram of a network device of an embodiment of the invention;

fig. 5 shows one of block diagrams of a signal transmission apparatus according to an embodiment of the present invention;

FIG. 6 is a second flowchart of a signal transmission method according to an embodiment of the present invention;

fig. 7 shows a block diagram of a terminal device of an embodiment of the invention;

fig. 8 shows a second block diagram of a signal transmission device according to an embodiment of the invention.

Detailed Description

To make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.

In addition, the terms "system" and "network" are often used interchangeably herein.

The technical scheme provided by the embodiment of the application can be suitable for various systems, especially 5G systems. For example, the applicable system may be a global system for mobile communication (GSM) system, a Code Division Multiple Access (CDMA) system, a Wideband Code Division Multiple Access (WCDMA) General Packet Radio Service (GPRS) system, a Long Term Evolution (LTE) system, an LTE Frequency Division Duplex (FDD) system, an LTE Time Division Duplex (TDD) system, an LTE-a (long term evolution) system, a Universal Mobile Telecommunications System (UMTS), a universal mobile telecommunications system (WiMAX) system, a Worldwide Interoperability for Mobile Access (WiMAX) system, or the like. These various systems include terminal devices and network devices. The System may further include a core network portion, such as an Evolved Packet System (EPS), a 5G System (5 GS), and the like.

Multiple Input Multiple Output (MIMO) transmission may be performed between the network device and the terminal device by using one or more antennas, where the MIMO transmission may be Single User MIMO (SU-MIMO) or Multi-User MIMO (MU-MIMO). The MIMO transmission may be 2D-MIMO, 3D-MIMO, FD-MIMO, or massive-MIMO, or may be diversity transmission, precoding transmission, beamforming transmission, or the like, depending on the form and number of root antenna combinations.

The term "and/or" in the embodiments of the present invention describes an association relationship of associated objects, and indicates that three relationships may exist, for example, a and/or B may indicate: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.

In the embodiments of the present application, the term "plurality" means two or more, and other terms are similar thereto.

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

The 5G NR supports the use of a Paging indication signal or called Paging Early Indication (PEI) at RRC Idle as an indication of whether a Physical Downlink Control Channel (PDCCH) scheduling Paging messages needs to be monitored. The terminal equipment monitors the PEI before the paging message is monitored, so that the invalid paging message monitoring of the terminal equipment is reduced, and the power consumption of the terminal equipment is further reduced.

Specifically, the terminal device receives the PEI before receiving the paging message, if the terminal device is indicated to need to receive subsequent paging messages, the terminal device continues to receive the paging message, otherwise, the terminal device may enter a low power consumption or sleep state, so that the power consumption of the terminal device may be reduced. Experiments prove that the PEI indicates that the power consumption of the terminal can be reduced to a great extent, for example, the power consumption can be saved by 10% -46%. The basic principle of PEI indication is shown in figure 1.

The paging message in the NR includes two parts, namely, a paging PDCCH and a paging Physical Downlink Shared Channel (PDSCH); herein, the paging PDCCH may also be referred to as paging Downlink Control Information (DCI). Based on the consideration of power saving of the terminal device, the paging Reception of the UE in NR to RRC Idle and RRC INACTIVE (INACTIVE) states may follow the Discontinuous Reception (DRX) principle. The terminal monitors one Paging Occasion (PO) per DRX cycle, and one PO may consist of a set of PDCCH Monitoring Opportunities (MOs), and may include multiple slots (e.g., subframes or Orthogonal Frequency Division Multiplexing (OFDM) symbols), and the Paging DCI is transmitted on the PDCCH MOs.

More specifically, as the PEI is used to indicate the presence of the paging DCI in fig. 1, if the PEI indicates the presence of the paging DCI, the terminal device needs to perform subsequent reception of the paging DCI and the paging PDSCH. When there is a page for one UE in the PO, the network device needs to send PEI, which indicates that there is a paging DCI on the PO. At this time, all UEs monitoring the PO will receive the paging DCI and the paging PDSCH, and for those UEs without paging, after receiving the paging DCI and the paging PDSCH, it may be determined that the UEs enter a low power consumption or sleep state when no paging exists, which may cause a power consumption waste.

Aiming at the energy-saving scheme in the RRC Idle State, the method supports the use of a TRS/Channel State Information Reference Signal (CSI-RS) in the RRC Idle State, and is at least used for Channel time-frequency tracking, so that the number of channels tracked by SSB in the RRC Idle State is reduced, the detection performance of a PDCCH and a PDSCH of a paging message is improved, and the power consumption of terminal equipment is reduced.

The embodiment of the application provides a signal transmission method, a signal transmission device, network equipment and terminal equipment, and can reduce the power consumption of the terminal equipment by determining the paging condition of the terminal equipment and/or by determining the existence condition of a TRS on a TRS resource.

The method, the apparatus and the device (network device or terminal device) are based on the same application concept, and because the principles of solving the problems of the method, the apparatus and the device are similar, the implementation of the method, the apparatus and the device can be mutually referred, and repeated parts are not described again.

As shown in fig. 2, an embodiment of the present application provides a signal transmission method, including:

step 21: the network equipment sends a first signal comprising a first sequence to the terminal equipment, wherein the first sequence is used for indicating the paging condition of the terminal equipment and/or the existence condition of TRS on the TRS resource of the tracking reference signal.

Wherein the generation of the first sequence is related to a first set of parameters comprising at least one of: the terminal equipment comprises a terminal group identifier of the terminal equipment, a terminal subgroup identifier (sub-group _ ID) of the terminal equipment, a cell identifier (cell _ ID) of a cell of the terminal equipment, a terminal equipment identifier (UE _ ID) of the terminal equipment and a tracking reference signal identifier (TRS _ ID).

Optionally, the terminal group is: a terminal group including a first terminal device corresponding to a PO (where the number of the first terminal devices may be one or more); the terminal group is as follows: the sub-group of the part of the first terminal device corresponding to the PO may be included, in other words, the terminal group may be understood as one or more subsets obtained by further dividing the first terminal device corresponding to the PO. For example, the first terminal device corresponding to the PO includes terminals A1, A2, A3, and A4, and the terminal group may include the terminals A1, A2, A3, and A4; the terminals A1, A2, A3, and A4 may further be divided into a plurality of terminal groups, for example, one terminal group may include the terminals A1 and A2, and another terminal group includes the terminal devices A3 and A4. It should be noted that, the above example is for facilitating understanding of the relationship between the terminal group and the terminal group, and the number of terminal subgroups divided from the terminal group and the dividing manner are not limited to this.

Alternatively, the first sequence for indicating the paging situation of the terminal device may be understood as: the first sequence is used for indicating whether paging exists in the terminal equipment; the first sequence for indicating the presence of TRS on the TRS resource can be understood as: the first sequence is used to indicate whether a TRS exists on a TRS resource, or the first sequence is used to indicate whether a TRS is available on a TRS resource.

For example: and under the condition that the first parameter set comprises a terminal subgroup identification where the terminal equipment is located, dividing the terminal equipment on one PO into n (n is a positive integer) sub-groups, and when one terminal equipment A in the PO has paging, determining the terminal subgroup where the terminal equipment A is located as the sub-group A. The network device may send a first signal (e.g., PEI) including the first sequence to the terminal device to indicate that there is a page for the terminal device in sub-group a.

For the terminal device side, all terminal devices of the sub-group a need to receive paging messages (for example, receive paging DCI and paging PDSCH), and for terminal devices in other sub-groups except the sub-group a, it may be determined that there is no paging in the sub-group in which the terminal device is located, and the terminal devices in the other sub-groups may not receive paging messages and enter a low power consumption or sleep state, so that power consumption of part of the terminal devices in the PO may be reduced.

For example: in a case that the first parameter set includes the tracking reference signal identifier, the network device may send a first signal (e.g., PEI) including the first sequence to the terminal device to indicate the presence of the TRS on the TRS resource, so that after knowing the presence of the TRS on the TRS resource (i.e., whether the TRS on the TRS resource exists or whether the TRS on the TRS resource is available), the terminal device may reduce, according to the presence of the TRS on the TRS resource, the number of SSB tracking channels used in RRC Idle, and improve detection performance of PDCCH and PDSCH of the paging message, so as to reduce power consumption of the terminal device.

Optionally, the TRS _ ID value is 0 or 1, for example, the TRS _ ID value of 0 may be used to indicate that no TRS exists on the resource of the TRS, and the TRS _ ID value of 1 may be used to indicate that a TRS exists on the resource of the TRS.

In the above solution, the network device sends a first signal including a first sequence to the terminal device, where the first sequence is generated in relation to a first parameter set, and the first parameter set includes at least one of: the terminal group identifier of the terminal device, the terminal subgroup identifier of the terminal device, the cell identifier of the cell of the terminal device, the terminal device identifier of the terminal device, and the tracking reference signal identifier, so that the network device and the terminal device can determine the paging condition of the terminal device and/or the existence condition of the TRS on the tracking reference signal TRS resource, and the power consumption of the terminal device can be reduced.

the network device transmits a first signal comprising a first sequence to the terminal device on a first resource; the first resource is a resource corresponding to at least one OFDM symbol.

For example: when the first resource is a resource corresponding to one OFDM symbol, the first sequence may occupy the resource corresponding to the one OFDM symbol; when the first resource is a resource corresponding to K OFDM symbols, the first sequence may occupy the resource corresponding to the K OFDM symbols, for example, the first sequence may include K segments of the first partial first sequence, where one segment of the first partial first sequence occupies the resource corresponding to one OFDM symbol, and K is a positive integer greater than 1.

the first sequence is generated from a second sequence and a third sequence, at least one of the second sequence and the third sequence being related to the first set of parameters; alternatively, the first sequence is generated by a first pseudo-random sequence whose initialization factor is related to the first set of parameters.

For example: under the condition that the second sequence is related to the first parameter set, a correspondence between the second sequence and at least one of the terminal group identifier where the terminal device is located, the terminal subgroup identifier where the terminal device is located, the cell identifier of the cell where the terminal device is located, the terminal device identifier of the terminal device, and the tracking reference signal identifier may be determined by a mapping table or may be determined by formula calculation (for example, the correspondence between the second sequence and the terminal subgroup identifier where the terminal device is located is, an index number of the second sequence is equal to the terminal subgroup identifier where the terminal device is located).

Another example is: and under the condition that the third sequence is related to the first parameter set, determining the association relationship between the third sequence and at least one of a terminal group identifier of the terminal device, a terminal subgroup identifier of the terminal device, a cell identifier of a cell of the terminal device, a terminal device identifier of the terminal device, and a tracking reference signal identifier by using a mapping table or by using a formula.

Another example is: in the case that both the second and third sequences relate to the first set of parameters, the second sequence may relate to a first part of the parameters in the first set of parameters; if the first part of parameters comprises the terminal group identification of the terminal equipment and the terminal subgroup identification of the terminal equipment; the third sequence may relate to a second part of parameters in the first set of parameters, such as a cell identifier of a cell in which the terminal device is located and a tracking reference signal identifier. Alternatively, the association relationship between the second sequence and the first part parameter, and the association relationship between the third sequence and the second part parameter may be determined by a mapping table or by formula calculation.

Or, in case both the second and third sequences relate to the first set of parameters, the combination of the second and third sequences relates to a first part of the parameters of the first set of parameters; if the combination of the second sequence and the third sequence is related to the identifier of the terminal sub-group, the second sequence is one of [ a1 a2], and the third sequence is one of [ b 1b 2], a1b1, a1b2, a2b1, and a2b2 may be respectively used to indicate paging situations of terminal devices in four different terminal sub-groups, which is not limited in the embodiments of the present invention.

It should be noted that the first partial parameter and the second partial parameter may be combined in other ways, and the embodiment of the present invention is not limited thereto.

Optionally, the second sequence and the third sequence are each generated by at least one of a set of sequences, the set of sequences including: pseudo-random sequences, orthogonal sequences. Wherein, the pseudo random sequence may include: m-sequence, gold sequence and other pseudo-random sequences besides the m-sequence and gold sequence; the orthogonal sequence may include: walsh sequences and other orthogonal sequences in addition to the Walsh sequences.

For example: the second sequence may be generated from at least one of an m-sequence, a gold sequence, a pseudo-random sequence other than the m-sequence and the gold sequence, a Walsh sequence, and an orthogonal sequence other than the Walsh sequence; the third sequence may be generated from at least one of an m-sequence, a gold sequence, a pseudo-random sequence other than the m-sequence and the gold sequence, a Walsh sequence, and an orthogonal sequence other than the Walsh sequence.

The following describes the generation of the first sequence from the second sequence and the third sequence with reference to an example:

the first example is as follows:

for each OFDM symbol: the length of a first part of a first sequence on resources corresponding to the OFDM symbols is M;

the first sequence is generated from a second sequence and a third sequence, including: the first part of the first sequence is generated by a first part of a second sequence with the length of M and a first part of a third sequence with the length of M; m is a positive integer.

It should be noted that, when a first resource is a resource corresponding to one OFDM symbol, that is, a first sequence occupies a resource corresponding to one OFDM symbol, the first part of the first sequence is the first sequence, and the length of the first part of the first sequence is the length of the first sequence; the first part of the second sequence is the second sequence, and the length of the first part of the second sequence is the length of the second sequence; the first part of the third sequence is the third sequence, and the length of the first part of the third sequence is the length of the third sequence.

Under the condition that the first resource is a resource corresponding to at least two OFDM symbols, that is, the first sequence occupies resources corresponding to at least two OFDM symbols, the first partial first sequence is a partial sequence of the first sequence, and the sum of the lengths of all the first partial first sequences is the length of the first sequence; the first part of the second sequences are partial sequences of the second sequences, and the sum of the lengths of all the first part of the second sequences is the length of the second sequences; the first part of the third sequence is a partial sequence of the third sequence, and the sum of the lengths of all the first part of the third sequence is the length of the third sequence.

Optionally, at least one of the first partial second sequence and the first partial third sequence is related to the first set of parameters. Wherein the correspondence between at least one of the first partial second sequence and the first partial third sequence and the parameters in the first parameter set may be determined by a mapping table or by a formula.

Optionally, the first partial third sequence may be an orthogonal sequence, and M may be 2 ^m And m is a positive integer.

In addition, the lengths of the first part of the first sequence on the resources corresponding to different OFDM symbols may be different; or, when the first sequence occupies resources corresponding to a plurality of OFDM symbols, there are at least two different OFDM symbols (i.e. a first OFDM symbol and a second OFDM symbol), and the following condition is satisfied:

the length of a second part of the first sequence on the resource corresponding to the first OFDM symbol is M1, and the length of a third part of the first sequence on the resource corresponding to the second OFDM symbol is M2; m1 and M2 are different positive integers;

the first sequence is generated from a second sequence and a third sequence, including: the second part of the first sequence is generated by a second part of a second sequence with the length of M1 and a second part of a third sequence with the length of M1; the third partial first sequence is generated by a third partial second sequence with a length of M2 and a third partial third sequence with a length of M2.

In the second partial first sequence and the third partial first sequence, "second part" and "third part" are for distinguishing different OFDM symbols, and may be understood as the first partial first sequence on a resource corresponding to one OFDM symbol.

For example, for a second partial first sequence on the resource corresponding to a first OFDM symbol, it may be understood that one of a plurality of OFDM symbols corresponds to the first partial first sequence on the resource, that is, for the first OFDM symbol, the second partial first sequence on the resource corresponding to the first OFDM symbol may also be referred to as a first partial first sequence on the resource corresponding to the first OFDM symbol; similarly, for the third partial first sequence on the resource corresponding to the second OFDM symbol, it may also be understood as the first partial first sequence on the resource corresponding to one of the OFDM symbols, that is, for the second OFDM symbol, the third partial first sequence on the resource corresponding to the second OFDM symbol may also be referred to as the first partial first sequence on the resource corresponding to the second OFDM symbol.

Alternatively, the second partial third sequence may be an orthogonal sequence, and M1 is 2 ^m1 And m1 is a positive integer. Alternatively, the third part of the third sequence may be an orthogonal sequence, and M2 is 2 ^m2 And m2 is a positive integer.

Example two:

for each OFDM symbol: the first part of first sequences on the resources corresponding to the OFDM symbols comprise a first section of first sequences with the length of M and a second section of first sequences with the length of N; m and N are positive integers;

the first section first sequence is generated by a first section second sequence with the length of M and a first section third sequence with the length of M; the second section first sequence is generated by a second section second sequence with the length of N and a second section third sequence with the length of N;

More specifically, for each OFDM symbol: and the first part of the first sequence on the resources corresponding to the OFDM symbols is generated by the first part of the second sequence and the first part of the third sequence.

It should be noted that, when the first resource is a resource corresponding to one OFDM symbol, that is, the first sequence occupies a resource corresponding to one OFDM symbol, the first part of the first sequence is the first sequence; the first partial second sequence is the second sequence; the first partial third sequence is the third sequence.

When a first resource is a resource corresponding to at least two OFDM symbols, that is, a first sequence occupies the resource corresponding to at least two OFDM symbols, the first partial first sequence is a partial sequence of the first sequence; the first partial second sequence is a partial sequence of the second sequence; the first partial third sequence is a partial sequence of the third sequence.

Specifically, for each OFDM symbol: the first part of first sequences on the resources corresponding to the OFDM symbols comprise a first section of first sequences with the length of M and a second section of first sequences with the length of N; generating a first partial second sequence of the first partial first sequence comprises: a first second sequence of length M and a second sequence of length N; generating a first partial third sequence of the first partial first sequence comprises: a first third sequence of length M and a second third sequence of length N; m and N are positive integers;

the first sequence is generated from a second sequence and a third sequence, including: the first segment first sequence is generated by the first segment second sequence and the first segment third sequence; the second segment first sequence is generated by the second segment second sequence and the second segment third sequence; wherein at least one of the first segment second sequence, the second segment second sequence, the first segment third sequence, and the second segment third sequence is related to the first set of parameters.

Optionally, the correspondence between at least one of the first segment second sequence, the second segment second sequence, the first segment third sequence, and the second segment third sequence and the parameter in the first parameter set may be determined by a mapping table or determined by formula calculation.

Alternatively, the first segment of the third sequence may be an orthogonal sequence, and M is 2 ^m And m is a positive integer. Alternatively, the second segment of the third sequence may be an orthogonal sequence, and N is 2 ⁿ And n is a positive integer.

Example three:

for each OFDM symbol: the first part of the first sequence on the resource corresponding to the OFDM symbol comprises a first section of the first sequence with the length of M and a second section of the first sequence with the length of N; m and N are positive integers;

It should be noted that, when the first resource is a resource corresponding to one OFDM symbol, that is, the first sequence occupies a resource corresponding to one OFDM symbol, the first sequence is the first sequence; the first partial second sequence is the second sequence; the first partial third sequence is the third sequence.

When a first resource is a resource corresponding to at least two OFDM symbols, that is, a first sequence occupies resources corresponding to at least two OFDM symbols, the first partial first sequence is a partial sequence of the first sequence; the first partial second sequence is a partial sequence of the second sequence; the first partial third sequence is a partial sequence of the third sequence.

Specifically, for each OFDM symbol: the first part of first sequences on the resources corresponding to the OFDM symbols comprise a first section of first sequences with the length of M and a second section of first sequences with the length of N; generating a first partial second sequence of the first partial first sequence comprises: a first second sequence of length M and a second sequence of length N; generating a first part third sequence of the first part first sequence with a length of N; m and N are positive integers;

the first sequence is generated from a second sequence and a third sequence, including: the first segment first sequence is generated by the first segment second sequence; the second segment first sequence is generated from the second segment second sequence and the first partial third sequence; wherein at least one of the first segment second sequence, the second segment second sequence, and the first partial third sequence is related to the first set of parameters.

Wherein the first segment first sequence generated from the first segment second sequence may comprise: the first segment first sequence is the first segment second sequence.

Optionally, the correspondence between at least one of the first segment second sequence, the second segment second sequence, and the first partial third sequence and the parameter in the first parameter set may be determined by a mapping table or determined by formula calculation.

Optionally, the first part of the third sequence may be an orthogonal sequence, and N is 2 ⁿ And n is a positive integer.

alternatively, the first and second electrodes may be,

For example, for a second partial first sequence on the resource corresponding to a first OFDM symbol, it may be understood that one of a plurality of OFDM symbols corresponds to the first partial first sequence on the resource, that is, for the first OFDM symbol, the second partial first sequence on the resource corresponding to the first OFDM symbol may also be referred to as a first partial first sequence on the resource corresponding to the first OFDM symbol; similarly, for the third partial first sequence on the resource corresponding to the second OFDM symbol, it may also be understood that one of the OFDM symbols corresponds to the first partial first sequence on the resource, that is, for the second OFDM symbol, the third partial first sequence on the resource corresponding to the second OFDM symbol may also be referred to as the first partial first sequence on the resource corresponding to the second OFDM symbol.

Optionally, for different OFDM symbols: when the first part of the third sequence corresponding to the first part of the first sequence on the resource corresponding to each OFDM symbol is the same, any one of the first example, the second example and the third example may be adopted for generating the first sequence from the second sequence and the third sequence; correspondingly, for a case that a second part of a third sequence corresponding to the second part of the first sequence on the resource corresponding to the first OFDM symbol is different from a third part of the third sequence corresponding to the third part of the first sequence on the resource corresponding to the second OFDM symbol, any one of the first example, the second example, and the third example may be adopted for generating the first sequence from the second sequence and the third sequence, and details are not repeated here to avoid repetition.

The following specifically describes the above embodiments of the present invention with reference to specific scenarios:

the network equipment sends a first signal comprising a first sequence to the terminal equipment, wherein the first sequence is used for indicating the paging condition of the terminal equipment and/or the existence condition of TRS on the TRS resource of the tracking reference signal. The terminal device may be a terminal device in a sub-group in the PO. Here, the third sequence is taken as an orthogonal sequence for example, and the orthogonal sequence is used to indicate different sub-groups and/or TRS availability (availability), that is, to indicate a paging condition of the terminal device and/or a presence condition of a TRS on a TRS resource of a tracking reference signal. The orthogonal sequence may be related to at least one of a terminal group identifier of the terminal device, a terminal subgroup identifier of the terminal device, a cell identifier of a cell in which the terminal device is located, a terminal device identifier of the terminal device, and a tracking reference signal identifier. Wherein, the tracking reference signal identifier (TRS _ ID) takes a value of 0 or 1. For example, a TRS _ ID value of 0 indicates that no TRS exists on the TRS resource, and a TRS _ ID value of 1 indicates that a TRS exists on the TRS resource.

The first sequence is generated by a second sequence and an orthogonal sequence, and the second sequence can be generated by an m sequence or a gold sequence. For example, the second sequence may be a TRS sequence or an SSS sequence. The first sequence generated from the second sequence and the orthogonal sequence may be referred to as TRS-based PEI or SSS-based PEI.

Alternatively, the generating manner of the TRS sequence may be determined by the following formula:

where c (2 m) and c (2m + 1) may be collectively referred to as pseudo-random sequences (as represented by c (i)). The pseudo-random sequence may be a gold sequence 31 long, and the initialization factor of the pseudo-random sequence is:

wherein the pseudo-random sequence is initialized at the beginning of each OFDM symbol.

Is in one slotThe number of OFDM symbols (symbols),

is the number of slots (slot) in a radio frame, l is the OFDM number in a slot, n _ID Is a scrambling identity (scramblingID) or a sequence generating configuration identity (sequence generationconfigid) of a higher layer parameter. The TRS sequences generated herein can also be referred to as legacy TRSs.

Alternatively, the SSS sequence generation manner may be determined by the following formula:

d _SSS (n)＝[1-2x ₀ ((n+m ₀ )mod 127)][1-2x ₁ ((n+m ₁ )mod 127)]

0≤n＜127

wherein the content of the first and second substances,

is the first level of cell identification,

is the second level of cell identification and,

m0 is 0,5,10,15,20,25,30,35,40, m1 is 0, 8230; 111. Here, x0 and x1 are two m-sequences of length 127.

The generator polynomial of the m-sequences x0 and x1 is:

x ₀ (i+7)＝(x ₀ (i+4)+x ₀ (i))mod 2

x ₁ (i+7)＝(x ₁ (i+1)+x ₁ (i))mod 2

the initial values of the m-sequences x0 and x1 are:

[x ₀ (6) x ₀ (5) x ₀ (4) x ₀ (3) x ₀ (2) x ₀ (1) x ₀ (0)]＝[0 0 0 0 0 0 1]

[x ₁ (6) x ₁ (5) x ₁ (4) x ₁ (3) x ₁ (2) x ₁ (1) x ₁ (0)]＝[0 0 0 0 0 0 1]

the first sequence may occupy resources on 1 OFDM symbol within 1 slot, or the first sequence may occupy resources on multiple OFDM symbols within 1 slot.

As an implementation: when the first sequence occupies resources on a plurality of OFDM symbols within 1 slot, first partial second sequences corresponding to the first partial first sequence on the resources corresponding to each OFDM symbol may be the same or different, and first partial orthogonal sequences corresponding to the first partial first sequence on the resources corresponding to each OFDM symbol are the same. The first partial first sequence may be understood as a partial sequence of the first sequence, and the first partial first sequences on resources corresponding to all OFDM symbols form a complete first sequence; the first partial second sequence may be understood as a partial second sequence used for generating the first partial first sequence; the first partial orthogonal sequence may be understood as a partial orthogonal sequence used for generating the first partial first sequence.

For the first part of the first sequence on the resources corresponding to each OFDM symbol, the length of the corresponding first part of the second sequence is the same as the length of the first part of the orthogonal sequence, that is, the first part of the orthogonal sequence is generated by adding the first part of the orthogonal sequence to the whole first part of the second sequence. The first partially orthogonal sequence is related to at least one of a terminal group identifier, a sub-group _ ID, a cell _ ID, a UE _ ID, and a TRS _ ID where the terminal device is located.

For OFDM symbols at different time instants, the first partial orthogonal sequences corresponding to the first partial first sequences on the resources may be different, so that different sub-groups and/or TRS availabilities may be distinguished by the different first partial orthogonal sequences.

For example: there are multiple UEs in the same PO, and the multiple UEs are divided into different sub-groups, for example: sub-group 1, \8230, sub-group n. Different sub-groups correspond to different orthogonal sequences (occ), and the corresponding relation between the sub-group _ ID and the occ can be determined through a mapping table or through formula calculation. Or, different TRS availabilities correspond to different occs, and the correspondence between TRS _ ID and occ may be determined by a mapping table or by formula calculation.

If TRS-based PEI (i.e., the first sequence) occupies X Resource Elements (REs), occ corresponding to sub-group n is a Walsh sequence with length X, and the final TRS-based PEI may be multiplied by occ (i.e., o (m)) based on the above-mentioned generation formula of legacy TRSs (i.e., r (m)), i.e., TRS _ PEI (m) = r (m) = o (m).

For TRS-based PEI, n in the initialization factor Cinit _ID May be indicated by system messages or Non-Access Stratum (NAS) signaling. O (m) is determined by at least one of a terminal group identifier, a sub-group _ ID, a cell _ ID, a UE _ ID and a TRS _ ID where the terminal equipment is located; for example, the walsh sequence corresponding to sub-group n is [1, \ 8230 ], -1, -1, -1, -1]。

In particular, when TRS-based PEI and legacy UEs' TRS coexist, i.e., both TRS-based PEI and legacy TRS are on the same resource, different orthogonal sequences can be used to distinguish TRS-based PEI and legacy TRS, such as cover code [1, \ 8230;, 1,1] for legacy TRS, i.e., cover code [1, \ 8230;, 1,1] is not used to distinguish sub-groups.

For a first partial first sequence on resources corresponding to each OFDM symbol, a length of a corresponding first partial second sequence is the same as that of the first partial first sequence, or orthogonal sequences may be superimposed on the first partial second sequence in segments to generate the first partial first sequence, or orthogonal sequences may be superimposed on partial sequences of the first partial second sequence to generate the first partial first sequence.

For example: for the first part of the first sequence on the resources corresponding to each OFDM symbol, the corresponding first part of the third sequence includes a first segment orthogonal sequence and a second segment orthogonal sequence. For the OFDM symbols at different time, the second orthogonal sequences corresponding to the first part of the first sequences on the resources may be different, so that different sub-groups and/or TRS availabilities may be distinguished by the different second orthogonal sequences.

The TRS-based PEI occupies X REs in total on one OFDM symbol and occupies Y OFDM symbols in 1 slot. It can be understood that the TRS-based PEI is generated by a second sequence overlapping orthogonal sequence, where the orthogonal sequence includes a first orthogonal sequence and a second orthogonal sequence, the first orthogonal sequence may be a full 1 sequence, and the second orthogonal sequence is related to at least one of a terminal group identifier, a sub-group _ ID, a cell _ ID, a UE _ ID, and a TRS _ ID where the terminal device is located; the length of the second orthogonal sequence may be 2 ⁿ And n is a positive integer.

Specifically, as illustrated by X =144,y =2, the second sequence (which may also be understood as the first partial second sequence) with the length of 144 of 1 OFDM symbol may be divided into two sequences with the length of 128 (the first segment of the second sequence) and a sequence with the length of 16 (the second segment of the second sequence). In this case, the length-128 sequence may be not overlapped with the occ or overlapped with the occ of all "1" (first orthogonal sequence), and the length-16 sequence is overlapped with the length-16 occ (second orthogonal sequence). Wherein the second orthogonal sequence with length of 16 can be related to at least one of terminal group identification, sub-group _ ID, cell _ ID, UE _ ID and TRS _ ID where the terminal device is located. If we take the overall "1" occ of length 128 and the occ of length 16 as a whole, then the whole occ is a multi-segment occ. As shown in FIG. 3, exemplified by a 2-segment occ, where two occs of length 16 are used to distinguish between different sub-groups and/or TRS availabilities.

If the TRS-based PEI occupies X REs in 1 OFDM symbol, the occ corresponding to sub-group n is a Walsh sequence with length X, and the final TRS-based PEI is obtained by multiplying the occ (i.e., o (m)) based on the above-mentioned legacy TRS generation formula (i.e., r (m)), i.e., TRS _ PEI (m) = r (m) × o (m).

<xnotran> O (m) occ occ, occ , sub-group _ ID, cell _ ID, UE _ ID TRS _ ID , , sub-group n occ ( walsh ) [1,1,1,1,1,1,1,1, -1, -1, -1, -1, -1, -1, -1, -1]. </xnotran> For different sub-groups, the first occ is a full "1" sequence.

<xnotran> , TRS-based PEI legacy UE TRS , TRS-based PEI legacy TRS , TRS _ based PEI legacy TRS, TRS _ based PEI legacy TRS, O (m) occ [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1] sub-group, legacy TRS. </xnotran> <xnotran> , occ 16 , occ [1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1] legacy UE, 15 occ 15 sub-group. </xnotran> In this case, the second segment occ with length 16 on different OFDM symbols may be the same. Or, the sub-group is distinguished by the second segment occ on 1 OFDM symbol, and the second sequence on another OFDM symbol does not overlap occ.

In this embodiment, when the TRS-based PEI and legacy TRS share one resource, when the network device needs to send the TRS-based PEI and legacy PEI on the resource, the transmission power of the network device on all REs of the resource may be increased by 3dB.

As another implementation: when the first sequence occupies resources on multiple OFDM symbols within 1 slot, first partial second sequences corresponding to the first partial first sequence on the resources corresponding to each OFDM symbol may be the same or different, and first partial orthogonal sequences corresponding to the first partial first sequences on the resources corresponding to different OFDM symbols are different, for example, for different OFDM symbols: for the first OFDM symbol and the second OFDM symbol, a second partial orthogonal sequence corresponding to a second partial first sequence on resources corresponding to the first OFDM symbol is different from a third partial orthogonal sequence corresponding to a third partial first sequence on resources corresponding to the second OFDM symbol.

For each OFDM symbol, when an orthogonal sequence is superimposed over the entire first partial second sequence, the sub-group and/or TRS availability may be jointly distinguished in combination with the second partial orthogonal sequence and the third partial orthogonal sequence. At this time, the orthogonal sequences on different OFDM symbols are combined to jointly correspond to at least one of sub-group _ ID, cell _ ID, UE _ ID, and TRS _ ID, and the corresponding relationship may be obtained by table mapping or formula calculation.

When the orthogonal sequence comprises a first section of orthogonal sequence and a second section of orthogonal sequence, the sub-group and the TRS availability can be jointly distinguished by combining the second section of orthogonal sequence on the first OFDM symbol and the second section of orthogonal sequence on the second OFDM symbol. At this time, the second orthogonal sequences on different OFDM symbols are combined with at least one of a terminal group identifier, a sub-group _ ID, a cell _ ID, a UE _ ID, and a TRS _ ID where the corresponding terminal device is located, and the corresponding relationship may be determined by a mapping table or by formula calculation.

For example, when the number of sub-groups supported is more than 15, sub-groups may be corresponding to a second segment occ corresponding to the first part of the first sequence on different OFDM symbols in 1 slot. For example, if there are 15 different occs in the second segment occ of 1 OFDM symbol and 15 different occs in the second segment occ of another OFDM symbol, a total of 15 × 15=255 different sub-groups can be indicated.

This embodiment can make only 1 sequence transmitted on 128 REs occupied by 128 sequences, at this time, the 128-long sequence contained in the TRS-based PEI is the same as the 128-long sequence contained in the legacy TRS, only the 16-long sequence contained in the TRS-based PEI is different from the 16-long sequence contained in the legacy TRS, the network device only needs to transmit two orthogonal sequences on the REs occupied by the 16-long sequence, and the transmission power can be increased by 3dB.

Optionally, for a case where the first sequence is generated by a first pseudo-random sequence whose initialization factor relates to the first set of parameters, the first pseudo-random sequence may be: a gold sequence of length 31.

Optionally, the initialization factor of the first pseudorandom sequence is related to the first set of parameters, including but not limited to one of:

the initialization factor is related to a terminal group identifier where the terminal equipment is located;

the initialization factor is related to the terminal subgroup identification where the terminal equipment is located;

the initialization factor is related to a terminal group identifier where the terminal equipment is located and a terminal subgroup identifier where the terminal equipment is located;

the initialization factor is related to a terminal subgroup identifier where the terminal equipment is located and a cell identifier of a cell where the terminal equipment is located;

the initialization factor is related to the terminal subgroup identifier where the terminal device is located, the cell identifier of the cell where the terminal device is located, and the tracking reference signal identifier.

This embodiment may indicate different sub-groups and/or TRS availabilities by different sequence initialization factors, which may be applicable to TRS-based PEI. The second sequence is generated in the same manner as the TRS, for example, based on a 31-long gold sequence, which is not described herein again. Initialization factor C of the sequence _init And the TRS _ ID is 0 or 1 in value and is related to at least one of a terminal group identifier, a sub-group _ ID, a cell _ ID, a UE _ ID and a TRS _ ID where the terminal equipment is located.

For example: initialization factor C _init Associated with sub-group _ ID, C _init The following formula is satisfied:

c _init ＝(A*B*C+D)mod2 ³¹

wherein A is 2 ⁿ N is a positive integer; b is a function related to the index of the OFDM symbol in the radio frame; C. d is a function related to sub-group ID.

In particular, the factor C is initialized _init The formula is as follows:

when TRS-based PEI and legacy TRS of legacy UE coexist, that is, when both TRS-based PEI and legacy TRS exist on the same resource, C is described above _init Can not protectWhen the two are different, C as follows can be used _init The formula is as follows:

alternatively, the first and second electrodes may be,

it should be noted that, when both TRS-based PEI and legacy TRS exist on the same resource, C for TRS-based PEI and legacy CSI-RS _init ，

Same, mainly different from 2 ¹⁰ (2n _ID + 1) of maximum 2 ²¹ 。sub-group_ID*2 ¹⁰ Distinguished from n with respect to sub-group _ ID _ID More thoroughly, n of legacy CSI-RS _ID Will occupy the lower 10 bits, sub-group _ ID 2 ¹⁰ The lower 10 bits are left empty.

Another example is: initialization factor C _init Related to sub-group _ ID, cell _ ID, C _init The following formula is satisfied:

c _init ＝(A*B*C+D+E)mod2 ³¹

wherein A is 2 ⁿ N is a positive integer; b is a function related to the index of the OFDM symbol within the radio frame; C. d is a function related to sub-group _ ID or cell _ ID, and E is a function related to cell _ ID.

Specific examples of C _init The formula (c) is as follows:

alternatively, the first and second electrodes may be,

wherein the content of the first and second substances,

12 bits are required, and assuming that 6 bits are required for the sub-group _ ID, the cell _ ID is multiplied by 2 ⁴⁰ 。

Another example is: initialization factor C _init Related to sub-group _ ID, cell _ ID, TRS _ ID, C _init The following formula is satisfied:

c _init ＝(A*B*C+D+E+F)mod2 ³¹

wherein A is 2 ⁿ N is a positive integer; b is a function related to the index of the OFDM symbol within the radio frame; c is a function related to sub-group _ ID or cell _ ID; d is a function related to sub-group _ ID; e is a function related to cell _ ID; f is a function related to TRS _ ID.

Specific examples of C _init The following were used:

optionally, the first sequence is generated from a second sequence and a third sequence, including: the first sequence is generated from a second pseudo-random sequence and a third pseudo-random sequence, at least one of a cyclic shift of the second pseudo-random sequence and a cyclic shift of the third pseudo-random sequence being related to the first set of parameters.

Optionally, the second pseudo-random sequence and the third pseudo-random sequence are maximal length sequences (m-sequences), respectively. Here, the maximum length sequence is a pseudo random binary sequence. They are generated using maximally linear feedback shift registers because they are periodic and can reproduce each binary sequence that can be represented by a shift register (i.e., for a length m register they produce a length 2m-1 sequence). Maximal length sequences are sometimes also referred to as n-sequences or m-sequences.

Optionally, the cell identifier of the cell in which the terminal device is located is determined by a first-level cell identifier of the cell in which the terminal device is located and a second-level cell identifier of the cell in which the terminal device is located; the cyclic shift of the second pseudo-random sequence and the cyclic shift of the third pseudo-random sequence are related to the first set of parameters, including:

the second pseudo-random sequence is related to a cell identifier of a cell where the terminal device is located, and the third pseudo-random sequence is related to a terminal subgroup identifier where the terminal device is located;

the second pseudo-random sequence is related to at least one of a first-level cell identifier of a cell where the terminal device is located and a second-level cell identifier of the cell where the terminal device is located, and the third pseudo-random sequence is related to a terminal subgroup identifier where the terminal device is located;

the second pseudo-random sequence is related to at least one of a first-level cell identifier of a cell where the terminal device is located and a second-level cell identifier of the cell where the terminal device is located, and the third pseudo-random sequence is related to a terminal subgroup identifier where the terminal device is located and a cell identifier of the cell where the terminal device is located;

the second pseudo-random sequence is related to at least one of a first-level cell identifier of a cell where the terminal device is located and a second-level cell identifier of the cell where the terminal device is located, and the third pseudo-random sequence is related to at least one of a terminal subgroup identifier where the terminal device is located, the first-level cell identifier of the cell where the terminal device is located, the second-level cell identifier of the cell where the terminal device is located, and the tracking reference signal identifier.

This embodiment may indicate different sub-groups and/or TRS availabilities by different sequences. This embodiment may be applied to SSS-based PEI. The first sequence (d (n)) is generated as follows:

d _SSS (n)＝[1-2x ₀ ((n+m ₀ )mod 127)][1-2x ₁ ((n+m ₁ )mod 127)]

0≤n＜127

the generator polynomial for the m-sequences x0 and x1 is:

x ₀ (i+7)＝(x ₀ (i+4)+x ₀ (i))mod 2

x ₁ (i+7)＝(x ₁ (i+1)+x ₁ (i))mod 2

the initial values of the m-sequences x0 and x1 are:

the cyclic shift of the m0 sequence and the cyclic shift of the m1 sequence are related to at least one of a terminal group identifier, a sub-group _ ID, a cell _ ID, a UE _ ID, and a TRS _ ID where the terminal device is located, and the TRS _ ID takes a value of 0 or 1.

The following is to illustrate that the first m sequence (i.e. the first pseudo-random sequence) is related to the first level cell-ID and the second level cell-ID, and the second m sequence (i.e. the second pseudo-random sequence) is related to the first level cell-ID and the sub-group _ ID, TRS _ ID, and the specific first sequence generation formula is as follows:

d _{SSS_PEI} (n)＝[1-2x ₀ ((n+m ₀ )mod 127)][1-2x ₁ ((n+m ₁ )mod 127)]

0≤n＜127

wherein, the first and the second end of the pipe are connected with each other,

the network device according to the embodiment of the present application may be a base station, and the base station may include a plurality of cells for providing services to a terminal. A base station may also be called an access point, or may be a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminal devices, or by other names, depending on the particular application. The network device may be configured to exchange received air frames with Internet Protocol (IP) packets as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) communication network. The network device may also coordinate attribute management for the air interface. For example, the network device according to the embodiment of the present application may be a Base Transceiver Station (BTS) in a Global System for Mobile communications (GSM) or a Code Division Multiple Access (CDMA), may also be a network device (NodeB) in a Wide-band Code Division Multiple Access (WCDMA), may also be an evolved Node B (eNB or e-NodeB) in a Long Term Evolution (LTE) System, a 5G Base Station (gNB) in a 5G network architecture (next generation System), may also be a Home evolved Node B (HeNB), a relay Node (relay Node), a Home Base Station (femto), a pico Base Station (pico) and the like, and the present application is not limited in this embodiment. In some network architectures, a network device may include a Centralized Unit (CU) node and a Distributed Unit (DU) node, which may also be geographically separated.

Optionally, before the first signal including the first sequence is sent by the network device to the terminal device, the method further includes: the network device generates the first sequence. The above embodiments may be specifically used to generate the first sequence.

The foregoing embodiments describe the signal transmission method of the present invention, and the following embodiments further describe the corresponding network device with reference to the accompanying drawings.

Specifically, as shown in fig. 4, a network device 400 according to an embodiment of the present invention includes:

a sending unit 410, configured to send a first signal including a first sequence to a terminal device, where the first sequence is used to indicate a paging situation of the terminal device and/or a presence situation of a TRS on a TRS resource of a tracking reference signal;

Optionally, the sending unit 410 is further configured to: transmitting a first signal comprising a first sequence to the terminal device on a first resource; the first resource is a resource corresponding to at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol.

Optionally, the generating of the first sequence is related to a first set of parameters, including:

alternatively, the first and second liquid crystal display panels may be,

Alternatively,

for different OFDM symbols: the first part of the third sequences corresponding to the first part of the first sequences on the resources corresponding to each OFDM symbol are the same; wherein the first partial third sequence is a partial third sequence that generates the first partial first sequence;

alternatively, the first and second electrodes may be,

Optionally, the second pseudo-random sequence and the third pseudo-random sequence are maximum length sequences, respectively.

Optionally, the first pseudo-random sequence is: a gold sequence of length 31.

It should be noted that the division of the unit in the embodiment of the present application is schematic, and is only a logic function division, and there may be another division manner in actual implementation. In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

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

It should be noted that, the network device provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as those of the method embodiment in this embodiment are not repeated herein.

To better achieve the above objects, as shown in fig. 5, the wireless communication device includes a memory 520, a transceiver 510, a processor 500; wherein the memory 520 is used for storing computer programs; a transceiver 510 for transceiving data under the control of the processor 500; such as transceiver 510, for receiving and transmitting data under the control of processor 500; the processor is used for reading the computer program in the memory and executing the following operations:

alternatively, the first and second electrodes may be,

Alternatively,

Alternatively, the first and second liquid crystal display panels may be,

alternatively, the first and second electrodes may be,

Optionally, the first sequence is generated by a second sequence and a third sequence, including: the first sequence is generated from a second pseudo-random sequence and a third pseudo-random sequence, at least one of a cyclic shift of the second pseudo-random sequence and a cyclic shift of the third pseudo-random sequence being related to the first set of parameters.

Optionally, the first pseudo-random sequence is: a gold sequence of length 31.

Wherein in fig. 5, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 500, and various circuits, represented by memory 520, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 510 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium including wireless channels, wired channels, fiber optic cables, and the like. The processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 may store data used by the processor 500 in performing operations.

The processor 500 may be a Central Processing Unit (CPU), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA), or a Complex Programmable Logic Device (CPLD), and may also have a multi-core architecture.

It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

The processor-readable storage medium can be any available medium or data storage device that can be accessed by a processor, including, but not limited to, magnetic memory (e.g., floppy disks, hard disks, magnetic tape, magneto-optical disks (MOs), etc.), optical memory (e.g., CDs, DVDs, BDs, HVDs, etc.), and semiconductor memory (e.g., ROMs, EPROMs, EEPROMs, non-volatile memories (NAND FLASH), solid State Disks (SSDs)), etc.

The signal transmission method according to the embodiment of the present invention is introduced from the network device side, and the signal transmission method at the terminal device side will be further described with reference to the drawings.

As shown in fig. 6, an embodiment of the present invention provides a signal transmission method, including:

step 61: the terminal equipment receives a first signal which is sent by the network equipment and comprises a first sequence, wherein the first sequence is used for indicating the paging condition of the terminal equipment and/or the existence condition of TRS on the TRS resource.

Alternatively, the first sequence for indicating the paging situation of the terminal device may be understood as: the first sequence is used for indicating whether paging exists in the terminal equipment; the first sequence for indicating the presence of TRS on the TRS resource can be understood as: the first sequence is used to indicate whether there is a TRS on a TRS resource, or the first sequence is used to indicate whether a TRS is available on a TRS resource.

For the terminal device side, all terminal devices of the sub-group a need to receive the paging message (for example, receive paging DCI and paging PDSCH), and for terminal devices in other sub-groups except the sub-group a, it may be determined that there is no paging in the sub-group in which the terminal device is located, and the terminal devices in the other sub-groups may not receive the paging message and enter a low power consumption or sleep state, so that power consumption of some terminal devices in the PO may be reduced.

In the above solution, the terminal device receives a first signal including a first sequence sent by the network device, where the first sequence is generated according to a first parameter set, and the first parameter set includes at least one of: the terminal group identifier of the terminal equipment, the terminal subgroup identifier of the terminal equipment, the cell identifier of the cell of the terminal equipment, the terminal equipment identifier of the terminal equipment and the tracking reference signal identifier, so that the network equipment and the terminal equipment can determine the paging condition of the terminal equipment and/or the existence condition of TRS on the tracking reference signal TRS resource, and the power consumption of the terminal equipment is favorably reduced.

alternatively, the first and second electrodes may be,

the first section first sequence is generated by a first section second sequence with the length of M; the second section first sequence is generated by a second section second sequence with the length of N and a first part third sequence with the length of N;

alternatively, the first and second liquid crystal display panels may be,

the initialization factor is related to a terminal subgroup identification where the terminal equipment is located and a cell identification of a cell where the terminal equipment is located;

Optionally, before the terminal device receives a first signal including a first sequence sent by a network device, the method further includes: the terminal device determines the first sequence. The method for determining the first sequence by the terminal device is the same as the method for generating the first sequence by the network device side, and is not repeated here for avoiding repetition.

For example: for a certain terminal device a, determining that paging exists in the sub-group a of the terminal where the terminal device a is located according to the first signal, and the terminal device a needs to receive a paging message (for example, receiving paging DCI and paging PDSCH); if it is determined that the terminal subgroup sub-group A where the terminal subgroup A is located has no paging according to the first signal, the terminal device A may not receive the paging message and enters a low power consumption or sleep state, so that the power consumption of the terminal device may be reduced.

if the TRS on the TRS resource is available according to the first signal, tracking a channel by adopting a first number of synchronous signal blocks SSB in an idle state of Radio Resource Control (RRC);

if the TRS on the TRS resource is determined to be unavailable according to the first signal, adopting a second number of SSB tracking channels in the RRC idle state; wherein the first number is less than the second number.

For example: when the first signal is used for indicating the TRS availability, and after the terminal receives the first signal indicating that the TRS is available, the terminal device determines that the TRS exists on the TRS resource in the RRC idle state, so that the terminal device can reduce the number of channels tracked by using the SSB in the RRC idle state, improve the detection performance of the PDCCH and the PDSCH of the paging message, and reduce the power consumption of the terminal device. When the terminal device receives the first signal indicating that the TRS is unavailable, the terminal device determines that the TRS does not exist on the TRS resource in the RRC idle state, and thus the number of channels tracked by using the SSB in the RRC idle state cannot be reduced.

The terminal device referred to in the embodiments of the present application may be a device providing voice and/or data connectivity to a user, a handheld device having a wireless connection function, or other processing device connected to a wireless modem. In different systems, the names of the terminal devices may be different, for example, in a 5G system, the terminal device may be referred to as a User Equipment (UE). A wireless terminal device, which may be a mobile terminal device such as a mobile phone (or called a "cellular" phone) and a computer having a mobile terminal device, for example, a portable, pocket, hand-held, computer-included or vehicle-mounted mobile device, may communicate with one or more Core Networks (CNs) via a Radio Access Network (RAN), and may exchange languages and/or data with the RAN. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, session Initiation Protocol (SIP) phones, wireless Local Loop (WLL) stations, personal Digital Assistants (PDAs), and the like. The wireless terminal device may also be referred to as a system, a subscriber unit (subscriber unit), a subscriber station (subscriber station), a mobile station (mobile station), a remote station (remote station), an access point (access point), a remote terminal (remote terminal), an access terminal (access terminal), a user terminal (user terminal), a user agent (user agent), and a user device (user device), which is not limited in this embodiment.

The foregoing embodiments are respectively described in terms of the signal transmission method of the present invention, and the following embodiments will further describe the corresponding terminal device with reference to the accompanying drawings.

Specifically, as shown in fig. 7, a terminal device 700 according to an embodiment of the present invention includes:

a receiving unit 710, configured to receive a first signal that includes a first sequence and is sent by a network device, where the first sequence is used to indicate a paging situation of a terminal device and/or a presence situation of a TRS on a TRS resource of a tracking reference signal;

Optionally, the receiving unit 710 is further configured to: receiving a first signal comprising a first sequence transmitted by the network device on a first resource; the first resource is a resource corresponding to at least one Orthogonal Frequency Division Multiplexing (OFDM) symbol.

alternatively, the first and second liquid crystal display panels may be,

alternatively, the first and second electrodes may be,

Optionally, the first pseudo-random sequence is: a gold sequence of length 31.

The integrated unit, if implemented as a software functional unit and sold or used as a stand-alone product, may be stored in a processor readable storage medium. Based on such understanding, the technical solutions of the present application, which are essential or contributing to the prior art, or all or part of the technical solutions may be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, a network device, or the like) or a processor (processor) to execute all or part of the steps of the methods described in the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

It should be noted that, the terminal device provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

As shown in fig. 8, the present embodiment provides a terminal including a memory 83, a transceiver 84, a processor 81; wherein the memory 84 is used for storing computer programs; a transceiver 83 for transceiving data under the control of the processor 81; such as a transceiver 83 for receiving and transmitting data under the control of the processor 81; the processor 81 is configured to read the computer program in the memory 83 and perform the following operations:

Optionally, the processor 81 is configured to read the computer program in the memory and perform the following operations:

alternatively, the first and second electrodes may be,

Optionally, the first pseudo random sequence is: a gold sequence of length 31.

and if the paging of the terminal equipment is determined to be absent according to the first signal, entering a low power consumption or dormant state.

Wherein in fig. 8 the bus architecture may comprise any number of interconnected buses and bridges, with one or more processors represented by processor 81 and various circuits of memory represented by memory 83 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 84 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over transmission media including wireless channels, wired channels, fiber optic cables, and the like. The user interface 82 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 81 is responsible for managing the bus architecture and general processing, and the memory 83 may store data used by the processor 81 in performing operations.

Alternatively, the processor 81 may be a CPU (central processing unit), an ASIC (Application Specific Integrated Circuit), an FPGA (Field Programmable Gate Array), or a CPLD (Complex Programmable Logic Device), and the processor may also adopt a multi-core architecture.

The processor 81 is used for executing any of the methods provided by the embodiments of the present application according to the obtained executable instructions by calling a computer program stored in a memory. The processor 81 and the memory 83 may also be physically separated.

An embodiment of the present invention further provides a processor-readable storage medium, where a computer program is stored, and the computer program is configured to enable the processor to execute the steps in the signal transmission method.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer-executable instructions. These computer-executable instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be stored in a processor-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the processor-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These processor-executable instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

Furthermore, it should be noted that in the apparatus and method of the present invention, it is obvious that each component or each step may be decomposed and/or recombined. These decompositions and/or recombinations are to be considered as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processor, storage medium, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. A signal transmission method, comprising:

the method comprises the steps that network equipment sends a first signal comprising a first sequence to terminal equipment, wherein the first sequence is used for indicating the paging condition of the terminal equipment and/or the existence condition of TRS on TRS resources;

2. The method of claim 1, wherein the network device sends a first signal comprising a first sequence to the terminal device, comprising:

the network device transmitting a first signal comprising a first sequence to the terminal device on a first resource;

3. The method of claim 2, wherein the generation of the first sequence is related to a first set of parameters, comprising:

alternatively, the first and second electrodes may be,

4. The method of claim 3, wherein the second sequence and the third sequence are each generated from at least one of a set of sequences comprising: pseudo-random sequences, orthogonal sequences.

5. The method of claim 3, wherein for each OFDM symbol: the length of a first part of a first sequence on resources corresponding to the OFDM symbols is M;

6. The method of claim 3, wherein for each OFDM symbol: the first part of first sequences on the resources corresponding to the OFDM symbols comprise a first section of first sequences with the length of M and a second section of first sequences with the length of N; m and N are positive integers;

7. The method of claim 3, wherein for each OFDM symbol: the first part of first sequences on the resources corresponding to the OFDM symbols comprise a first section of first sequences with the length of M and a second section of first sequences with the length of N; m and N are positive integers;

8. The method according to any one of claims 5 to 7,

m is 2 ^m And/or N is 2 ⁿ (ii) a m and n are positive integers.

9. The method according to any of claims 3 to 7, wherein, in case the first resource is a resource corresponding to at least two OFDM symbols:

alternatively, the first and second electrodes may be,

10. A signal transmission method, comprising:

11. The method of claim 10, wherein the terminal device receives a first signal comprising a first sequence from a network device, and wherein the method comprises:

12. The method of claim 11, wherein the generating of the first sequence is related to a first set of parameters, comprising:

alternatively, the first and second liquid crystal display panels may be,

13. The method of claim 12, wherein the second sequence and the third sequence are each generated from at least one of a set of sequences comprising: pseudo-random sequences, orthogonal sequences.

14. The method of claim 12, wherein for each OFDM symbol: the length of a first part of a first sequence on resources corresponding to the OFDM symbols is M;

15. The method of claim 12, wherein for each OFDM symbol: the first part of first sequences on the resources corresponding to the OFDM symbols comprise a first section of first sequences with the length of M and a second section of first sequences with the length of N; m and N are positive integers;

16. The method of claim 12, wherein for each OFDM symbol: the first part of the first sequence on the resource corresponding to the OFDM symbol comprises a first section of the first sequence with the length of M and a second section of the first sequence with the length of N; m and N are positive integers;

17. The method according to any one of claims 14 to 16,

m is 2 ^m And/or N is 2 ⁿ (ii) a m and n are positive integers.

18. The method according to any of claims 12 to 16, wherein in case the first resource is a resource corresponding to at least two OFDM symbols:

alternatively, the first and second electrodes may be,

19. The method of claim 10, wherein after the terminal device receives the first signal comprising the first sequence sent by the network device, the method further comprises:

and if the terminal equipment is determined to have no paging according to the first signal, the terminal equipment enters a low power consumption or sleep state.

20. A signal transmission apparatus, comprising a memory, a transceiver, a processor;

21. The apparatus of claim 20, wherein the processor is configured to read the computer program in the memory and perform the following:

22. The apparatus of claim 21, wherein the generation of the first sequence is related to a first set of parameters, comprising:

alternatively, the first and second electrodes may be,

23. The apparatus of claim 22, wherein the second sequence and the third sequence are each generated by at least one of a set of sequences comprising: pseudo-random sequences, orthogonal sequences.

24. The apparatus of claim 22, wherein for each OFDM symbol: the length of a first part of a first sequence on resources corresponding to the OFDM symbols is M;

25. The apparatus of claim 22, wherein for each OFDM symbol: the first part of first sequences on the resources corresponding to the OFDM symbols comprise a first section of first sequences with the length of M and a second section of first sequences with the length of N; m and N are positive integers;

26. The apparatus of claim 22, wherein for each OFDM symbol: the first part of first sequences on the resources corresponding to the OFDM symbols comprise a first section of first sequences with the length of M and a second section of first sequences with the length of N; m and N are positive integers;

27. The apparatus of any one of claims 24 to 26,

m is 2 ^m And/or N is 2 ⁿ (ii) a m and n are positive integers.

28. The apparatus according to any of claims 22-26, wherein in case the first resource is a resource for at least two OFDM symbols:

alternatively, the first and second electrodes may be,

29. A network device, comprising:

30. A signal transmission apparatus, comprising a memory, a transceiver, a processor; wherein the memory is used for storing computer programs; the transceiver is used for transceiving data under the control of the processor; the processor is used for reading the computer program in the memory and executing the following operations:

31. The apparatus of claim 30, wherein the processor is configured to read the computer program in the memory and perform the following:

32. The apparatus of claim 31, wherein the generation of the first sequence is related to a first set of parameters, comprising:

alternatively, the first and second liquid crystal display panels may be,

33. The apparatus of claim 32, wherein the second sequence and the third sequence are each generated by at least one of a set of sequences comprising: pseudo-random sequences, orthogonal sequences.

34. The apparatus of claim 32, wherein for each OFDM symbol: the length of a first part of a first sequence on resources corresponding to the OFDM symbols is M;

35. The apparatus of claim 32, wherein for each OFDM symbol: the first part of first sequences on the resources corresponding to the OFDM symbols comprise a first section of first sequences with the length of M and a second section of first sequences with the length of N; m and N are positive integers;

36. The apparatus of claim 32, wherein for each OFDM symbol: the first part of first sequences on the resources corresponding to the OFDM symbols comprise a first section of first sequences with the length of M and a second section of first sequences with the length of N; m and N are positive integers;

the first section first sequence is generated by a first section second sequence with the length of M; the second section of first sequence is generated by a second section of second sequence with the length of N and a first part of third sequence with the length of M;

37. The apparatus of any one of claims 34 to 36,

m is 2 ^m And/or N is 2 ⁿ (ii) a m and n are positive integers.

38. The apparatus according to any of claims 32 to 36, wherein in case the first resource is a resource corresponding to at least two OFDM symbols:

alternatively, the first and second electrodes may be,

39. The apparatus of claim 30, wherein the processor is configured to read the computer program in the memory and perform the following:

40. A terminal device, comprising:

a receiving unit, configured to receive a first signal including a first sequence sent by a network device, where the first sequence is used to indicate a paging situation of a terminal device and/or a presence situation of a TRS on a TRS resource of a tracking reference signal;

41. A processor-readable storage medium, characterized in that the processor-readable storage medium stores a computer program for causing a processor to execute the steps in the signal transmission method according to any one of claims 1 to 19.