CN107689855A

CN107689855A - Signal sending, receiving method and equipment

Info

Publication number: CN107689855A
Application number: CN201610638045.0A
Authority: CN
Inventors: 黄秋萍; 高秋彬; 陈润华; 李辉; 塔玛拉卡·拉盖施; 宋扬; 王蒙军; 李传军; 苏昕; 杨宇
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2016-08-05
Filing date: 2016-08-05
Publication date: 2018-02-13
Anticipated expiration: 2036-08-05
Also published as: CN107689855B

Abstract

The embodiments of the invention provide a kind of signal sending, receiving method and equipment, signaling method to include：Network node is according to for representing that the information of the first mark determines the time-frequency location relation of synchronizing signal and reference point；The network node sends synchronizing signal and/or reference point based on the time-frequency location relation of the synchronizing signal and reference point；Wherein, the described first section identification information for being identified as network node.Network node identification of the prior art only identifies cell ID, do not include the more nodes information such as TRP ID and wave beam ID, using embodiment of the present invention, the identification that more network node identification informations such as TRP ID, wave beam ID are used for network node can be obtained by the time-frequency location relation of synchronizing signal and reference point, so as to improve the network coverage and improve the flexibility of network insertion.

Description

Signal transmitting and receiving method and equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting and receiving a signal in a communication system.

Background

A communication system may have one or more network nodes (nodes) and terminals (UEs) communicating. After the terminal is powered on, in order to access the network, at least one node must be found and accessed through the network node. If a network comprises a plurality of network nodes, the terminal may be accessible through any one of the plurality of network nodes. Taking a cellular system as an example, a network node is configured as a Cell (Cell), each Cell transmits different signals, and a terminal detects the signals of different cells, identifies a proper Cell and accesses the network, which is called initial access. In a cellular system, a terminal needs to perform cell identification (find a suitable network node for access) in initial access, and may also need to perform cell identification in a cell reselection or connection state, identify a suitable cell for camping, or report a handover request to a network node.

The LTE system carries identification information of a cell through a synchronization Signal (SYNC), and the synchronization signal of the LTE system includes a PSS (primary synchronization signal) and an SSS (secondary synchronization signal). The network node of the cell may have one or more transmit antennas, and the PSS/SSS is transmitted over multiple antennas after being shaped. Since the PSS/SSS signals are designed for access by all users in the cell, the design of the shaping scheme should ensure wide shaping so that the PSS/SSS can be received by all users in the cell. Therefore, a Cell transmits a PSS/SSS signal, which has a one-to-one correspondence with the Cell ID (Cell identification) of the Cell. And after detecting the PSS/SSS of a Cell, the terminal correspondingly obtains the Cell ID of the Cell and identifies the Cell.

When a future system sends an access signal carrying network node identification information, the system may include a TRP (Transmit or receive point) ID and/or beam information (e.g., beam ID) in addition to a Cell ID, and the number of IDs is very large, and if the existing Cell ID signal sending method is adopted to carry all IDs, great challenges are brought to ID transmission and identification, and therefore, no effective scheme is provided in the prior art for the sending method of network node identification information of the future system.

Disclosure of Invention

In view of the foregoing technical problems, embodiments of the present invention provide a signal transmitting and receiving method and device, which implement transmission of more network node identification information.

In a first aspect, a signal transmission method is provided, including:

the network node determines the time-frequency position relation between the synchronous signal and the reference point according to the information used for representing the first identifier;

the network node sends a synchronization signal and/or a reference point based on the time-frequency position relation between the synchronization signal and the reference point;

wherein the first identifier is partial identification information of the network node.

Optionally, the information indicating the first identifier is the first identifier, or a predefined constraint condition is satisfied between the information indicating the first identifier and the first identifier.

Optionally, the method further comprises: the network node determines the information representing the first identity.

Optionally, if the reference point is a system information block, the sending, by the network node, the synchronization signal and/or the reference point based on the time-frequency position relationship between the synchronization signal and the reference point includes:

the network node determines the time-frequency position of the synchronous signal;

the network node determines the time-frequency position of a reference point corresponding to the synchronous signal according to the time-frequency position of the synchronous signal and the time-frequency position relation between the synchronous signal and the reference point;

the network node sends the synchronous signal at the time-frequency position of the synchronous signal and sends the reference point at the time-frequency position of the reference point;

or,

the network node determines the time-frequency position of a reference point;

the network node determines the time-frequency position of the synchronous signal corresponding to the reference point according to the time-frequency position of the reference point and the time-frequency position relation between the synchronous signal and the reference point;

and the network node sends the synchronous signal at the time-frequency position of the synchronous signal and sends the reference point at the time-frequency position of the reference point.

Optionally, if the reference point is a time-frequency position, the sending, by the network node, the synchronization signal and/or the reference point based on the time-frequency position relationship between the synchronization signal and the reference point includes:

the network node determines the time-frequency position of the synchronous signal according to the reference point and the time-frequency position relation between the synchronous signal and the reference point;

and the network node sends the synchronous signal at the time-frequency position of the synchronous signal.

Alternatively,

the mapping relationship between the information representing the first identifier and the time-frequency position relationship between the synchronization signal and the reference point is predetermined or determined by a network node.

Optionally, the first identifier is all or part of or any combination of the following information, including: system information area or network area ID, transmission reception point TRP ID, and beam ID.

Optionally, the sending method further includes:

and the network node informs the terminal of the time-frequency position or the reference point of the reference point.

Optionally, the sending method further includes:

and the network node carries the time-frequency position or the reference point of the reference point in the system information block.

In a second aspect, there is also provided a signal receiving method, including:

the terminal receives the synchronous signal and/or the reference point, and determines the time-frequency position relation between the synchronous signal and the reference point according to the synchronous signal and the reference point;

the terminal acquires information used for representing a first identifier according to the time-frequency position relation between the synchronous signal and a reference point;

the terminal obtains a first identifier according to information used for representing the first identifier;

Optionally, the receiving, by the terminal, the synchronization signal and/or the reference point, and determining a time-frequency position relationship between the synchronization signal and the reference point according to the synchronization signal and the reference point, includes:

the terminal acquires the time-frequency position of the synchronous signal in a mode of receiving the synchronous signal, or the terminal acquires the time-frequency position of the synchronous signal in a mode of prearranged or pre-detected;

the terminal determines candidate time-frequency positions of one or more reference points according to the candidate time-frequency position relationship between the synchronization signal and the reference points and the acquired time-frequency position of the synchronization signal;

the terminal detects a reference point at the candidate time-frequency position of the determined one or more reference points;

and the terminal marks the detected time-frequency position of the reference point as the time-frequency position of the reference point to obtain the time-frequency position relation between the synchronous signal and the reference point.

Optionally, the determining, according to the synchronization signal and the reference point, a time-frequency position relationship between the synchronization signal and the reference point includes:

the terminal acquires the time-frequency position of the synchronous signal;

the terminal obtains the time-frequency position of the reference point through reading network notification or according to a predetermined convention;

and the terminal acquires the time-frequency position relation between the synchronous signal and the reference point according to the time-frequency positions of the synchronous signal and the reference point.

Optionally, the obtaining, by the terminal through reading a network notification, a time-frequency position of the reference point includes:

the terminal determines candidate time-frequency positions of one or more system information blocks corresponding to the synchronous signals according to the time-frequency position relationship between the synchronous signals and the system information blocks corresponding to the synchronous signals, or the terminal determines candidate time-frequency positions of one or more system information blocks corresponding to the synchronous signals according to the acquired time-frequency positions of the synchronous signals and the predefined time-frequency positions of the system information blocks;

the terminal detects a system information block at the determined one or more candidate time-frequency positions;

and the terminal reads the time-frequency position or the reference point of the reference point in the detected system information block.

Alternatively,

the synchronization signal carries information for representing a second identifier;

the receiving method further comprises:

the terminal obtains the complete identification information of the network node according to the information for representing the first identifier and the information for representing the second identifier;

the second identifier is all identification information of the network node except the first identifier or partial identification information of the network node.

Optionally, the first identifier is all or part of any one of the following information or any combination thereof, including: system information area or network area ID, transmission reception point TRP ID, and beam ID.

Optionally, the mapping relationship between the information representing the first identifier and the time-frequency position relationship between the synchronization signal and the reference point is predetermined or notified by a network node.

Optionally, the reference point is a system information block or a pre-agreed time-frequency position.

In a third aspect, there is also provided a network node, including:

the first determining module is used for determining the time-frequency position relation between the synchronous signal and the reference point according to the information used for representing the first identifier;

the sending module is used for sending the synchronous signal and/or the reference point based on the time-frequency position relation between the synchronous signal and the reference point;

Optionally, the network node further comprises:

a second determining module, configured to determine the information indicating the first identifier.

Optionally, if the reference point is a system information block, the sending module is further configured to:

determining the time-frequency position of the synchronous signal;

determining the time-frequency position of a reference point corresponding to the synchronous signal according to the time-frequency position of the synchronous signal and the time-frequency position relation between the synchronous signal and the reference point;

sending the synchronous signal at the time-frequency position of the synchronous signal, and sending the reference point at the time-frequency position of the reference point;

or,

determining the time-frequency position of a reference point;

determining the time-frequency position of the synchronous signal corresponding to the reference point according to the time-frequency position of the reference point and the time-frequency position relation between the synchronous signal and the reference point;

and sending the synchronous signal at the time-frequency position of the synchronous signal, and sending the reference point at the time-frequency position of the reference point.

Optionally, if the reference point is a time-frequency position, the sending module is further configured to:

determining the time-frequency position of the synchronous signal according to the reference point and the time-frequency position relation between the synchronous signal and the reference point;

and sending the synchronous signal at the time-frequency position of the synchronous signal.

In a fourth aspect, there is also provided a terminal, including:

the third determining module is used for receiving the synchronous signal and/or the reference point and determining the time-frequency position relation between the synchronous signal and the reference point according to the received synchronous signal and the reference point;

the first acquisition module is used for acquiring information used for representing a first identifier according to the time-frequency position relation between the synchronous signal and a reference point;

the second acquisition module is used for acquiring the first identifier according to the information used for representing the first identifier;

Alternatively,

the information used for representing the first identifier is the first identifier, or a predefined constraint condition is satisfied between the information used for representing the first identifier and the first identifier.

Optionally, the third determining module is further configured to: acquiring the time-frequency position of the synchronous signal in a mode of receiving the synchronous signal, or acquiring the time-frequency position of the synchronous signal in a pre-appointed or pre-detection mode; determining candidate time-frequency positions of one or more reference points according to the candidate time-frequency position relationship between the synchronization signal and the reference point and the acquired time-frequency position of the synchronization signal; detecting a reference point at a candidate time-frequency position of the determined one or more reference points; and recording the time-frequency position of the detected reference point as the time-frequency position of the reference point, and obtaining the time-frequency position relation between the synchronous signal and the reference point.

Optionally, the third determining module is further configured to: acquiring a time-frequency position of a synchronous signal; obtaining the time-frequency position of the reference point through reading network notification or according to a predetermined convention; and obtaining the time-frequency position relation of the synchronous signal and the reference point according to the time-frequency positions of the synchronous signal and the reference point.

Optionally, the third determining module is further configured to: determining candidate time-frequency positions of one or more system information blocks corresponding to the synchronization signals according to the time-frequency position relationship between the synchronization signals and the system information blocks corresponding to the synchronization signals or the time-frequency positions of the synchronization signals and the predefined system information blocks; detecting a system information block at the determined one or more candidate time-frequency positions; and reading the time-frequency position or the reference point of the reference point in the detected system information block.

Optionally, the synchronization signal carries information for representing a second identifier;

the terminal further comprises:

the third acquisition module is used for acquiring complete identification information of the network node according to the information used for representing the first identifier and the information used for representing the second identifier;

One of the above technical solutions has the following advantages or beneficial effects: in the prior art, network node information identification only identifies a cell ID, and does not include more node information such as TRP ID and beam ID. When a future system sends an access signal carrying network node identification information, the system may include TRP IDs and/or beam information (beam IDs) in addition to cell IDs, the number of IDs will be huge, and the existing cell ID signal sending method for carrying all IDs will bring huge challenges to ID transmission and identification. By adopting the signal sending and receiving method and the signal sending and receiving equipment in the embodiment of the invention, part of network node identification information can be carried by the time-frequency position relation of the synchronous signal and the reference point, so that the complexity and the time delay of the terminal for identifying the network node ID are reduced, and the flexibility of network coverage and network access is improved.

Drawings

Fig. 1 is a flowchart of a signal transmission method according to an embodiment of the present invention;

fig. 2A and fig. 2B are schematic diagrams of a transmission scheme for information representing a first identifier according to an embodiment of the present invention;

fig. 3 is a flowchart of a second signal receiving method according to an embodiment of the present invention;

FIG. 4 is a block diagram of a five network node according to an embodiment of the present invention;

fig. 5 is a block diagram of a sixth terminal according to an embodiment of the present invention;

fig. 6 is a block diagram of a network node according to a seventh embodiment of the invention;

fig. 7 is a block diagram of an eighth terminal according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

As will be appreciated by one skilled in the art, embodiments of the present invention may be embodied as a system, apparatus, device, method, or computer program product. Thus, embodiments of the invention may be embodied in the form of: entirely hardware, entirely software (including firmware, resident software, micro-code, etc.), or a combination of hardware and software.

Existing systems focus primarily on low band deployment (primarily below 6 GHz) with a small number of antennas on the node side. In the future, a system can be deployed in a frequency band of 0.4 GHz-100 GHz or even higher, due to the difference of the transmission performance between a low frequency band below 6GHz and a high frequency band above 6GHz, the path loss of the high frequency band is much higher than that of the low frequency band, for example, the transmission distance is the same, and the path loss of a 26GHz carrier frequency is 20dB higher than that of a 2.6GHz carrier frequency under the line-of-sight condition. Under the condition of the same EIRP (Effective Isotropic radiated power), the coverage of high-frequency band signals is sharply reduced, and the existing synchronization and initial access signal design cannot ensure sufficient network coverage. There may be multiple TRPs in a cell of a future network, each TRP being identified with a different ID (identity). In addition, the number of antennas of a future system can be increased sharply to hundreds or even thousands, a large number of antennas can generate narrow shaped beams by using a shaping technology, and beam gain can improve the in-beam coverage. However, as the beams become narrow, the angle that each beam can cover becomes small, and the cell needs a plurality of beams to point to different directions, so as to achieve the coverage of the whole cell. Each beam is identified by a different ID. Synchronization and initial access signal design for wireless communication systems requires consideration of the impact of these deployments.

When a future system sends an access signal carrying network node identification information, the system may include a TRP ID and/or beam information (beam ID) in addition to a cell ID, and the number of IDs will be huge, which brings a huge challenge to ID delivery and identification.

In the embodiment of the present invention, a part of network node identification information is carried by a time-frequency position relationship between a synchronization signal and a reference point, where the reference point includes, but is not limited to, a system information block, a reference signal resource block, other information blocks with synchronization, access, information demodulation functions, a center frequency point, and other information blocks or time-frequency positions.

In the embodiment of the present invention, the related devices include a sending device (i.e., a network node) and a receiving device (i.e., a terminal), and downlink transmission and uplink reception may be performed between the sending device and the receiving device accessing the sending device. The transmitting device may transmit one or more synchronization Signals (SI), and the receiving device may receive the synchronization signals transmitted by the transmitting device and may perform network access according to the received synchronization signals.

The sending device may be a base station or other types of transmission point devices, and the receiving device may be a user equipment (or terminal). Of course, the present invention is not limited to the above two devices, and for example, the sending device may also be a terminal capable of performing configuration operations on other terminals. A transmitting device may also be considered to comprise a plurality of network stations. The network node may include only Radio frequency (e.g., Remote Radio Unit (RRU)) or both baseband and Radio frequency (e.g., Active antenna). A network node may include only a Baseband (e.g., a Baseband Unit (BBU)); or it may not include any digital/radio frequency function of the air interface layer, only takes charge of high-level signal processing, and puts the baseband processing of the air interface layer into the active antenna. Other various network implementation possibilities also exist.

A Terminal may also be referred to as User Equipment (UE), or may be referred to as Terminal, Mobile Station (MS), Mobile Terminal (RAN), and the like, and the Terminal may communicate with one or more core networks via a Radio Access Network (RAN), for example, the Terminal may be a Mobile phone (or may be referred to as a "cellular" phone), a computer with a Mobile Terminal, and the like, and for example, the Terminal may also be a portable, pocket, handheld, computer-embedded, or vehicle-mounted Mobile device, and they exchange voice and/or data with the RAN. The terminal in the embodiment of the present invention may also be a Device to Device (D2D) terminal or a Machine to Machine (M2M) terminal.

Example one

Referring to fig. 1, a signaling method is shown, which is performed by a network node. The signal sending method comprises the following specific steps:

step 101, the network node determines the time-frequency position relationship between the synchronization signal and the reference point according to the information used for representing the first identifier, and then step 102 is carried out;

102, the network node sends a synchronization signal and/or a reference point based on the time-frequency position relation between the synchronization signal and the reference point; wherein the first identifier is part of identification information of the network node.

Optionally, if the reference point is a system information block, first, the network node determines a time-frequency position of the synchronization signal, then, the network node determines a time-frequency position of a reference point corresponding to the synchronization signal according to the time-frequency position of the synchronization signal and a time-frequency position relationship between the synchronization signal and the reference point, and finally, the network node transmits the synchronization signal at the time-frequency position of the synchronization signal and transmits the reference point at the time-frequency position of the reference point.

Optionally, if the reference point is a system information block, first, the network node determines a time-frequency position of the reference point, then, the network node determines a time-frequency position of a synchronization signal corresponding to the reference point according to the time-frequency position of the reference point and a time-frequency position relationship between the synchronization signal and the reference point, and finally, the network node sends the synchronization signal at the time-frequency position of the synchronization signal and sends the reference point at the time-frequency position of the reference point.

Optionally, if the reference point is a time-frequency position, first, the network node determines the time-frequency position of the synchronization signal according to the reference point and the time-frequency position relationship between the synchronization signal and the reference point, and then, the network node sends the synchronization signal at the time-frequency position of the synchronization signal.

It should be noted that, in this embodiment, the network node may send the reference point to the terminal before or after sending the synchronization signal, where the reference point or the time-frequency position of the reference point may be carried in other information blocks, where the other information blocks include, but are not limited to, a control information block, an information block of a broadcast channel, and the like.

The above synchronization signal, also referred to as Sync Instance, abbreviated as SI, is used to refer to a generic term of one or several signals that may be used by a terminal during accessing a network, and the functions provided by the synchronization signal may include but are not limited to: initial synchronization, cell ID detection, system information area ID detection, system information demodulation, or other access procedures.

The reference point may be a system information block, a center frequency point, or other information blocks or time-frequency positions, or may be other information blocks having synchronization, access, information demodulation, or other functions. For convenience of description, the system Information Block is abbreviated as MIB in this embodiment, and it should be noted that the MIB in this embodiment may be the same as or different from a Master Information Block (Master Information Block) in LTE.

It should be noted that, in the embodiment of the present invention, the time-frequency position includes a time-domain position and/or a frequency-domain position. The time-frequency position of the synchronization signal may be a start position, a middle position, or an end position of a time-frequency resource occupied by the synchronization signal. The time-frequency position of the reference point may be a start position, a middle position, or an end position of the time-frequency resource occupied by the reference point.

For example, there may be multiple synchronization signals corresponding to the time-frequency location of one MIB, e.g., all synchronization signals of the same system information region or network region correspond to the same MIB time-frequency location. Alternatively, a partial synchronization signal in a system information region or a network region corresponds to a MIB time-frequency location.

Preferably, the time-frequency location of the MIB is fixed, e.g. specified by a protocol. For example, a system information area or a network area only has one MIB time-frequency location, which is located near a central frequency point or has a certain offset relative to the central frequency point; or, a system information region or a network region has a plurality of MIB time-frequency positions distributed at regular intervals in a frequency domain and/or a time domain.

Alternatively, the time-frequency location of the MIB may be determined by the network access point. For example, the network node determines the MIB time-frequency location based on its number of synchronization signals.

Optionally, information bits of the MIB may carry a third identifier (third ID), for example, the first identifier may be represented as t (x, y), where t () is a mapping relation or function, x is the third identifier, and y is information representing the first identifier. Examples are as follows: assume that the first identity is a TRP ID. These TRPs were divided into several groups. Part of the first identifier is a TRP group ID, which can be determined according to the time-frequency position relationship between the synchronization signal and the reference point. The third identity is the TRP intragroup ID, which is carried by information bits in the system information block.

Alternatively, the MIB may have a certain relationship with information representing the first identity and/or information representing the second identity and/or information representing the third identity. The information indicating the first identifier may be the first identifier, the information indicating the second identifier may be the second identifier, and the information indicating the third identifier may be the third identifier.

For example, the MIB may be scrambled by information representing the first identity and/or information representing the second identity and/or information representing the third identity.

For example, the reference signal of the MIB may be obtained through information for representing the first identity and/or information for representing the second identity and/or information of the third identity.

In this embodiment, the MIB information bits corresponding to different synchronization signals may be the same or different.

The identification information of the network node in the embodiment of the present invention includes, but is not limited to, one or a combination of the following information:

identification information for identifying an area in which the network node is located, identification information for identifying the network node, and identification information for identifying a beam used by the network node to transmit the SI.

Optionally, the identification information for identifying the area where the network node is located may be an area ID for uniquely identifying the area; the ID of the area group to which the area where the network node is located belongs and the ID of the area group to which the area where the network node is located belong may also be included.

Optionally, the identification information for identifying the network node may be a TRP ID for uniquely identifying the network node, and may also include an ID of a TRP group to which the network node belongs and an ID of the network node within the TRP group.

Optionally, the identification information for identifying the beam used by the network node to transmit the SI may be an ID for uniquely identifying the beam, or may include an ID of a beam group to which the beam used by the network node to transmit the SI belongs and an ID of the beam in the beam group.

In order to describe the technical solution of the embodiment of the present invention, words such as "first" and "second" are used to distinguish the identification information of the network nodes, but the number of the identification information and the operation priority are not limited, the first identifier is a part of the identification information of the network nodes, and the second identifier includes a part or all of the identification information of the network nodes except for the first identifier.

For example, the first identifier is a TRP ID and a beam ID, and the second identifier is a region ID. As another example, the first identifier is a beam ID and the second identifier is a region ID and a TRP ID. As another example, the first identifier is a TRP ID, and the second identifier is a region ID and a beam ID. As another example, the first identifier is a TRP ID and the second identifier is a region ID. As another example, the first identifier is an ID, a TRP ID, and a beam ID of the area in which the network node is located within the area group, and the second identifier is an ID of the area group. As another example, the first identifier is an ID of the network node in the TRP group, and the second identifier is an ID of a regional group, an ID of a region in which the network node is located in the regional group, an ID of the TRP group, and so on.

Optionally, before step 101, the network node determines information representing the first identity, including but not limited to the following: the network node determines information representing the first identity based on the first identity and predefined constraints.

Optionally, a predefined constraint condition is satisfied between the information for representing the first identifier and the first identifier, where the predefined constraint condition is defined by the network node or pre-agreed by the network node and the terminal.

The above predefined constraint:

alternatively first, the first identifier is a function of information representing the first identifier. For example, the first identifier is f (y), where y is information representing the first identifier.

Alternatively, the first identifier is a function of information representing the first identifier and information representing the second identifier, where the information representing the second identifier may be network node identification information carried by the synchronization signal, for example, the first identifier is g (x, y), where g () is a function, x is the information representing the second identifier carried by the synchronization signal, and y is the information representing the first identifier. The relationship between the information for representing the second identifier and the second identifier may be: and obtaining information representing the second identifier according to the second identifier.

Alternatively, the first identifier is a function of information representing the first identifier and the third identifier. In one embodiment, the third identifier may be part of the information of the first identifier. For example, the first identifier may be represented as t (x, y), where t () is a mapping relation or function, x is the third identifier, and y is information representing the first identifier. Examples are as follows: the first identifier is a TRP ID, and is used to indicate that the information of the first identifier is a group ID of the TRP (in this embodiment, information carried by a time-frequency position relationship between a synchronization signal and a reference point), and the third identifier is an intra-group ID of the TRP.

Optionally, a mapping relationship between the information representing the first identifier and a time-frequency position relationship between the synchronization signal and the reference point is predetermined or determined by a network node, where the predetermined manner may be a protocol convention.

The mapping relationship between the information for representing the first identifier and the time-frequency position relationship between the synchronization signal and the reference point is predetermined, or the time-frequency position relationship between the synchronization signal and the reference point is specified by a protocol or a specification; or the protocol constrains the time-frequency position relationship of the synchronization signal and the reference point.

For example, the protocol provides that the time-domain position of the reference point differs from the time-domain position of the synchronization signal by f1(y) symbols, where y is the information used to represent the first identifier, and f1(.) is a function, e.g., f1(y) y M, where M is a non-zero integer; alternatively, the protocol specifies that the frequency domain position of the reference point corresponding to the synchronization signal is offset from the synchronization signal by f2(y) Physical Resource Blocks (PRBs), where y is information used to represent the first identifier, and f2(·) is a function, e.g., f2(y) ═ y × N, where N is a non-zero integer; alternatively, the protocol provides that the reference point corresponding to the synchronization signal is different from the time domain position of the synchronization signal by g1(y) symbols, and the frequency domain position is different by g2(y) symbols, where g1(.) and g2(y) are two independent functions, and y is information used for representing the first identifier.

Some ways in which the network node determines the mapping of the information representing the first identity to the time-frequency positional relationship of the synchronization signal and the reference point include, but are not limited to, the following:

in a first mode, the protocol specifies a set of mapping relationships between information representing the first identifier and time-frequency location relationships between the synchronization signal and a reference point, from which the network node selects one mode.

The second method comprises the following steps: and the network node determines the mapping relation between the information representing the first identifier and the time-frequency position relation between the synchronization signal and the reference point according to the number of the information representing the first identifier.

Optionally, if the network node determines the mapping relationship between the information indicating the first identifier and the time-frequency position relationship between the synchronization signal and the reference point, the network node notifies the terminal of the mapping relationship between the information indicating the first identifier and the time-frequency position relationship between the synchronization signal and the reference point.

Optionally, the sending method further includes: and the network node informs the time-frequency position or the reference point of the terminal reference point. Further, the network node carries the time-frequency location of the reference point or the reference point in the system information block. It should be noted that, in this embodiment, the network node may also carry the time-frequency position or the reference point of the reference point in other information blocks (or referred to as non-reference point system information blocks), which includes but is not limited to: control information blocks, information blocks of a broadcast channel, etc.

In this embodiment, the synchronization signal may carry information of the network node for indicating the second identifier. The synchronization signal carries information used for representing the second identifier, which means that the synchronization signal and the information used for representing the second identifier have a corresponding relationship, and the terminal can obtain the corresponding information used for representing the second identifier by demodulating the synchronization signal. For example, the base sequence of the synchronization signal is generated based on the information indicating the second identifier, or the sequence of the synchronization signal is scrambled by the information indicating the second identifier, and the like, but the present invention is not limited thereto.

It should be noted that the second identifier may include one or more components, the synchronization signal also includes a plurality of components, and each component of the synchronization signal may be scrambled or sequenced by a component of the second identifier.

Referring to fig. 2A and 2B, two examples of information transmission schemes for representing the first identifier are shown.

Some implementation manners in which the network node carries information used for representing the first identifier of the network node through the time-frequency position relationship between the synchronization signal and the reference point further include: and carrying information used for representing the first identifier by using the resource number of the position difference between the synchronization signal and the reference point in the time domain and/or the frequency domain. The number of resources, for example, in the time domain and/or the frequency domain, for which the synchronization signal differs from the position of the reference point, and the first identifier or the information representing the first identifier satisfy a functional relationship f (y), where f () is a function and y represents the first identifier or the information representing the first identifier. As another example, the relative position relationship between the synchronization signal and the reference point in the time domain is fixed, and the relative position relationship in the frequency domain is related to the information representing the first identifier. In the prior art, network node information identification only identifies a cell ID, and does not include more node information such as TRP ID and beam ID. When a future system sends an access signal carrying network node identification information, the system may include TRP IDs and/or beam information (beam IDs) in addition to cell IDs, the number of IDs will be huge, and the existing cell ID signal sending method for carrying all IDs will bring huge challenges to ID transmission and identification. By adopting the signal sending and receiving method and the signal sending and receiving equipment in the embodiment of the invention, part of network node identification information can be carried by the time-frequency position relation of the synchronous signal and the reference point, so that the complexity and the time delay of the terminal for identifying the network node ID are reduced, and the flexibility of network coverage and network access is improved.

The "plurality" referred to in the embodiments of the present invention means two or more.

The "area" referred to in the embodiments of the present invention may correspond to one or more conventional cells, one or more system information areas, and one or more network areas. Of course, other manners may be adopted to divide the region, and the manner of dividing the region is not limited in the embodiment of the present invention.

Example two

Referring to fig. 3, a signal receiving method is shown, where an executing main body of the signal receiving method may be a terminal, and the specific steps are as follows:

step 301, the terminal receives a synchronization signal and/or a reference point, the terminal determines a time-frequency position relationship between the synchronization signal and the reference point according to the synchronization signal and the reference point, and then the step 302 is executed;

the above synchronization signal (Sync instant), which may be abbreviated as SI, is used to refer to a generic term of one or several signals that may be used by a terminal during accessing a network, and the functions provided by the synchronization signal may include, but are not limited to: initial synchronization, cell ID detection, system information area ID detection, system information demodulation, or other access procedures.

In an optional mode, the terminal acquires the time-frequency position of the synchronization signal in a mode of receiving the synchronization signal, or acquires the time-frequency position of the synchronization signal in a pre-promised or pre-detected mode (i.e. in a mode of not receiving the synchronization signal); the terminal determines candidate time-frequency positions of one or more reference points according to the candidate time-frequency position relationship between the synchronization signal and the reference points and the acquired time-frequency position of the synchronization signal; the terminal detects a reference point at the candidate time-frequency position of the determined one or more reference points; the terminal marks the detected time-frequency position of the reference point as the time-frequency position of the reference point, and obtains the time-frequency position relationship between the synchronization signal and the reference point, wherein the reference point can be a system information block.

Optionally, the manner in which the terminal acquires the time-frequency position of the synchronization signal includes, but is not limited to: (1) the terminal detects the synchronous signal, if the synchronous signal is detected, the time frequency position of the detected synchronous signal is the time frequency position of the synchronous signal; (2) the time-frequency position of the synchronization signal is predetermined, for example, protocol is predetermined; (3) the time-frequency position of the synchronization signal is already obtained in the previous timing sequence, e.g. the time-frequency position of the synchronization signal has already been obtained in the previous number of subframes, number of symbols, number of frames, etc.

In an optional mode II, the terminal acquires the time-frequency position of the synchronous signal; the terminal obtains the time-frequency position of the reference point through reading the network notification or according to the predetermined convention; and the terminal acquires the time-frequency position relation between the synchronous signal and the reference point according to the time-frequency positions of the synchronous signal and the reference point. It should be noted that the sequence of the two steps of acquiring the time-frequency position of the synchronization signal and acquiring the time-frequency position of the reference point by the terminal in this manner is not limited, and the reference point may be an information block or a time-frequency position.

In this embodiment, the terminal may obtain the time-frequency position of the reference point by reading the time-frequency position of the reference point or the reference point carried in the information block, where the information block includes but is not limited to: a system information block, a control information block, an information block of a broadcast channel, etc.

In the above optional mode two, the obtaining, by the terminal through reading the network notification, the time-frequency position of the reference point includes: the terminal determines candidate time-frequency positions of one or more system information blocks corresponding to the synchronous signals according to the time-frequency position relation between the synchronous signals and the system information blocks corresponding to the synchronous signals or the time-frequency position of the synchronous signals and the time-frequency position of a predefined system information block; the terminal detects a system information block at the determined one or more candidate time-frequency positions; and the terminal reads the time-frequency position or the reference point of the reference point in the detected system information block.

And a third candidate time frequency position selection mode is adopted, and the terminal reads the notified reference point or the time frequency position of the reference point in other information blocks. It should be noted that other information blocks may be transmitted by the network node to the terminal before or after the synchronization signal is received, and the other information blocks may be system information blocks or non-reference point system information blocks, wherein the non-reference point system information blocks include, but are not limited to, control information blocks, information blocks of a broadcast channel, and the like.

Step 302, the terminal acquires information used for representing the first identifier according to the time-frequency position relationship between the synchronization signal and the reference point, and then the step 303 is executed;

optionally, the terminal obtains the information for the first identifier according to mapping between the time-frequency position relationship between the synchronization signal and the reference point and between the information for representing the first identifier and the time-frequency position relationship between the synchronization signal and the reference point.

The mapping relationship between the information used for representing the first identifier and the time-frequency position relationship between the synchronization signal and the reference point is predetermined or determined by a network node, wherein the predetermined manner may be a protocol convention.

If the reference point is the MIB, in step 303, the terminal knows the location of the MIB according to an appointment (e.g., a protocol specifies) (e.g., the location of the MIB is fixed to a number of PRBs of the central frequency point) or the terminal obtains possible MIB locations according to the time-frequency location of the synchronization signal, the terminal detects the MIB at these possible locations, and if the MIB is successfully detected, the location of the MIB is determined; then the terminal obtains information used for representing the first identifier according to the time-frequency position relation between the MIB and the synchronous signal; or, in step 303, the terminal detects the MIB at the MIB location or at a possible location of the MIB, the terminal obtains information indicating the first identifier according to the time-frequency location relationship between the MIB and the synchronization signal, and the terminal decodes the MIB information at the possible location of the MIB.

Information bits of the MIB may carry a third identifier (third ID), for example, the first identifier may be represented as t (x, y), where t () is a mapping relation or function, x is the third identifier, and y is information representing the first identifier. Examples are as follows: the first identifier is a TRP ID, and is used to indicate that the information of the first identifier is a group ID of the TRP (information carried by a time-frequency positional relationship between a synchronization signal and a reference point), and the third identifier is an intra-group ID of the TRP.

If the reference point is a center frequency point (or other reference time-frequency location), the terminal obtains the center frequency point (or other reference time-frequency location) in step 303, and the center frequency point (or other reference time-frequency location) may be carried by the MIB or other system information, for example, related to the location of the MIB, or carried by information bits in the MIB. At this time, the MIB may need to be decoded to obtain the center frequency point (or other reference time frequency location). It should be noted that it is not excluded that the information of the center frequency point (or other reference time frequency positions) may be obtained from other signals, and the terminal obtains the information for representing the first identifier according to the time frequency position relationship between the center frequency point (or other reference time frequency positions) and the synchronization signal.

Optionally, the center frequency point or other reference time frequency position may be determined by a protocol agreement or a network node, and is notified to the terminal through a signaling.

Step 303, the terminal obtains the first identifier according to the information for representing the first identifier.

Wherein the first identifier is partial identification information of the network node; the information used for representing the first mark is the first mark, or the predefined constraint condition is satisfied between the information used for representing the first mark and the first mark.

The predefined constraint conditions are:

Alternatively, the first identifier is a function of information representing the first identifier and information representing the second identifier, where the information representing the second identifier is network node identification information carried by the synchronization signal, for example, the first identifier is g (x, y), where g () is a function, x is the information representing the second identifier carried by the synchronization signal, and y is the information representing the first identifier.

Alternatively, the first identifier is a function of information representing the first identifier and the third identifier. In one embodiment, the third mark is also part of the information of the first mark. For example, the first identifier may be represented as t (x, y), where t () is a mapping relation or function, x is the third identifier, and y is information representing the first identifier. Examples are as follows: the first identifier is a TRP ID, and is used to indicate that the information of the first identifier is a group ID of the TRP (information carried by a time-frequency positional relationship between a synchronization signal and a reference point), and the third identifier is an intra-group ID of the TRP.

The mapping relationship between the information used for representing the first identifier and the time-frequency position relationship between the synchronization signal and the reference point is predetermined, and the time-frequency position relationship between the synchronization signal and the reference point can be specified by a protocol or a specification; or the protocol constrains the time-frequency position relationship of the synchronization signal and the reference point. For example, the protocol provides that the time-domain position of the reference point differs from the time-domain position of the synchronization signal by f1(y) symbols, where y is the information used to represent the first identifier, and f1(.) is a function, e.g., f1(y) y M, where M is a non-zero integer; alternatively, the protocol specifies that the frequency domain position of the reference point corresponding to the synchronization signal is offset from the synchronization signal by f2(y) Physical Resource Blocks (PRBs), where y is information used to represent the first identifier, and f2(·) is a function, such as f2(y) ═ y × N +1, where N is a non-zero integer; alternatively, the protocol provides that the reference point corresponding to the synchronization signal is different from the time domain position of the synchronization signal by g1(y) symbols, and the frequency domain position is different by g2(y) symbols, where g1(.) and g2(y) are two independent functions, and y is information used for representing the first identifier.

Optionally, the synchronization signal carries information for representing the second identifier; the receiving method further comprises: the terminal obtains the complete identification information of the network node according to the information for representing the first identifier and the information for representing the second identifier; the second identifier is all identification information of the network node except the first identifier or partial identification information of the network node. The second identifier is a part of identification information of the network node, and the information indicating the second identifier may be the second identifier.

Optionally, the identification information for identifying the area in which the network node is located may be an area ID for uniquely identifying the area; the ID of the area group to which the area where the network node is located belongs and the ID of the area group to which the area where the network node is located belong may also be included.

In order to describe the technical solution of the embodiment of the present invention, words such as "first" and "second" are used to distinguish the identification information of the network nodes, but the number of the identification information and the operation priority are not limited, the first identifier includes part of the identification information of the network nodes, and the second identifier includes part or all of the identification information of the network nodes except for the first identifier.

For example, the first identifier is a TRP ID and a beam ID, and the second identifier is a region ID. As another example, the first identifier is a beam ID and the second identifier is a region ID and a TRP ID. As another example, the first identifier is a TRP ID, and the second identifier is a region ID and a beam ID. As another example, the first identifier is a TRP ID and the second identifier is a region ID. As another example, the first identifier is an ID, a TRP ID, and a beam ID of the area in which the network node is located within the area group, and the second identifier is an ID of the area group. As another example, the first identifier is an ID of the network node in the TRP group, and the second identifier is an ID of the regional group, an ID of the region in which the network node is located in the regional group, and an ID of the TRP group. And so on.

In the prior art, network node information identification only identifies a cell ID, and does not include more node information such as TRP ID and beam ID. When a future system sends an access signal carrying network node identification information, the system may include TRP IDs and/or beam information (beam IDs) in addition to cell IDs, the number of IDs will be huge, and the existing cell ID signal sending method for carrying all IDs will bring huge challenges to ID transmission and identification. By adopting the signal sending and receiving method and the signal sending and receiving equipment in the embodiment of the invention, part of network node identification information can be carried by the time-frequency position relation of the synchronous signal and the reference point, so that the complexity and the time delay of the terminal for identifying the network node ID are reduced, and the flexibility of network coverage and network access is improved.

EXAMPLE III

In this embodiment, first, a cell transmits one or more synchronization Signals (SI) in downlink;

as an embodiment, the SI carries information for identifying the second identifier.

As an embodiment, multiple SIs are transmitted from multiple TRPs, each TRP transmitting an independent SI signal. Each SI signal is transmitted from a TRP by wide beamforming, providing wide coverage for the corresponding TRP. In this case multiple SI signals cover the whole cell area covered by all TRPs.

As another embodiment, multiple SIs are transmitted on multiple shaped beams, each beam transmitting an SI signal pointing in one direction, the multiple shaped beams providing coverage throughout the cell

The second identifier may be all or part of any of the following information or any combination thereof: cell identification information (cell ID), TRP ID, beam ID.

As one embodiment, the SI contains one component. In another embodiment, an SI signal includes a plurality of components. The part constituents of different SI may be the same (not all different is excluded).

All or some components of different SI signals are distinguished by one or more multiplexing modes of FDM, TDM and CDM. Optionally, the terminal distinguishes between different SI signals by some or all of the components of the SI signal.

Generating a base sequence by using the information for representing the second identifier or scrambling all or part of the SI by using the information for representing the second identifier; or information for indicating the second identity is contained as information in bits of the SI.

The information for representing the second identification may comprise one component or a plurality of components.

One embodiment is that all or part of the components of the information representing the second identity generate a base sequence of all or part of the components of the SI, or all or part of the components of the SI are scrambled by all or part of the components of the information representing the second identity; alternatively, all or a part of the information indicating the second identity is contained as information in the bits of the SI.

As an embodiment, each SI corresponds to a MIB information block. It should be noted that the MIB refers to a system Information Block, and may be the same as or different from a MIB (Master Information Block) in LTE. And the information corresponding to the SI and used for representing the first identifier is carried through the relative time-frequency position relationship between the SI and the MIB.

As an embodiment, the time-frequency location of the SI is determined by the time-frequency location of the MIB and information of the network node corresponding to the SI for representing the first identifier.

As an embodiment, y represents information representing the first identity, and the time-frequency position of the SI differs from the time-frequency position of the MIB by f (y) resources in the time/frequency domain, where f (y) is a function of the first identity. For example, f (y) ═ y × M, where M is the number of frequency domain resources occupied by one SI, and M is an integer. f (y) may also be a function of time domain resources or a function of time-frequency domain resources. The principle is similar and is not described in detail.

Multiple SIs may correspond to time-frequency locations of the same MIB. For example, all SIs of the same cell correspond to the same MIB time-frequency location. For example, a portion of SI in a cell corresponds to a MIB time-frequency location.

In this embodiment, the first identifier is partial identification information of the network node; the information used for representing the first mark is the first mark, or the information used for representing the first mark and the first mark meet the predefined constraint condition. The second identification of the network node is all or part of the network node identification information except the first identification.

The predefined constraints are:

Alternatively, the first identifier is a function of information representing the first identifier and the third identifier. In one embodiment, the third identifier may be partial information of the first identifier. For example, the first identifier may be represented as t (x, y), where t () is a mapping relation or function, x is the third identifier, and y is information representing the first identifier. Examples are as follows: the first identifier is a TRP ID, and is used to indicate that the information of the first identifier is a group ID of the TRP (information carried by a time-frequency positional relationship between a synchronization signal and a reference point), and the third identifier is an intra-group ID of the TRP.

The time-frequency location of the MIB may be fixed or non-fixed.

Preferably, the time-frequency position of the MIB is fixed. As an embodiment, one cell has only one MIB time-frequency location, and is located near a central frequency point or has a certain offset relative to the central frequency point; in another embodiment, there are multiple MIB time-frequency locations in a cell, distributed at regular intervals in the frequency domain and/or the time domain.

If the time-frequency position of the MIB is fixed, it can be specified by the protocol.

Alternatively, the time-frequency location of the MIB may be decided by the network node. For example, the network node determines the MIB time-frequency location according to its own SI number.

The MIB may have a certain relationship with information representing the first identity and/or information representing the second identity and/or information representing the third identity.

The MIB may be scrambled by information representing the first identity and/or information representing the second identity and/or information representing the third identity. The terminal may descramble the MIB by information indicating the first identity and/or information indicating the second identity and/or information indicating the third identity.

The reference signal of the MIB may be obtained by information representing the first identity and/or information representing the second identity and/or information representing the third identity. The terminal may obtain the reference signal of the MIB at the time of reception by the information representing the first identity and/or by the information representing the second identity and/or by the information representing the third identity, and then use it for demodulation of the MIB.

The MIB information bits corresponding to different SIs may be the same or different. In one embodiment, the information bits of the MIB corresponding to all or part of the SIs of a cell are the same. As another embodiment, the MIB information bits of different SIs of a cell are different.

As an embodiment, a set of SIs in a cell corresponds to a MIB time-frequency location, and all MIB information bits corresponding to the set of SIs contain ID information about the SI set (i.e. the third identifier is an SI set ID).

As another embodiment, the information of the network node corresponding to the SI, which is used for representing the first identifier, is carried by the relative time-frequency position relationship between the SI and the center frequency point.

Example four

In this embodiment, first, the terminal searches one or more SIs sent in one cell in the downlink;

the first identification is partial identification information of the network node; the information used for representing the first mark is the first mark, or the information used for representing the first mark and the first mark meet the predefined constraint condition. The second identification of the network node is all or part of the information identified by the network node except the first identification.

Wherein the terminal can independently detect each SI.

Alternatively, the user jointly detects multiple SI signals. If the user detects the first SI (or part of the SI), the first SI (or part of the SI) is removed from the received signal, and the second SI (or part of the SI) continues to be detected, and so on.

One possible implementation is that the base sequences of multiple SIs (or partial components of SIs) are generated by the same information for representing the second identifier, and the terminal may detect multiple SIs simultaneously by using the same first identifier and obtain the information for representing the second identifier for each SI.

One possible implementation is that if the user successfully finds a certain SI signal, the terminal does not process any other SI signals.

The terminal may obtain multiple SIs corresponding to the same information used for representing the second identifier, or multiple SIs corresponding to different information used for representing the second identifier.

The terminal may obtain the information indicating the second identifier during the detection of the SI, and may also read the information indicating the second identifier through the SI.

The terminal knows the location of the MIB by convention (e.g., protocol specification), or the terminal obtains the possible MIB location based on the location of the SI

One embodiment is that the terminal obtains the MIB location according to protocol specifications;

one embodiment is that the terminal knows that the time-frequency domain position difference between the MIB and any SI is within a certain range, and the terminal determines all possible MIB positions according to this range.

One embodiment is that the terminal obtains several possible MIB positions by convention

As an embodiment, when the information indicating the first identifier is carried by the location relationship between the MIB and the SI, the terminal may obtain the information indicating the first identifier if the location relationship between the MIB and the SI is known;

as an embodiment, when the MIB and the SI are in different symbols, but the center time-frequency position is the same in the frequency domain, the first identifier is considered to be 0; when the central time-frequency position has a difference of N resource blocks in the frequency domain, the first identifier is considered to be 1; when the center time-frequency positions differ by 2N resource blocks in the frequency domain, the first identifier is considered to be 2, …. This is just one example, MIB and SI may be transmitted in the same symbol or different symbols, the same frequency or different frequencies.

Alternatively, the terminal detects the MIB at a possible location of the MIB,

if MIB detection is successful at a certain position, the terminal determines the position of the MIB and obtains information used for representing the first identifier according to the position relation between the MIB and the SI;

the terminal may use the information for representing the second identity when decoding the MIB information at a possible location of the MIB. For example, when information bits of the MIB are scrambled by information indicating the second identifier, the scrambling code is generated using the information indicating the second identifier, and the MIB information is demodulated. Obtaining the local reference signal using the information indicating the second identity when the MIB demodulation reference signal sequence is scrambled with the information indicating the second identity, obtaining channel information.

As another embodiment, when the information used for representing the first identifier is carried by the position relationship between the SI and the center frequency point (or other reference time-frequency location), the terminal needs to acquire the center frequency point (or other reference time-frequency location), and then obtains the information used for representing the first identifier through the time-frequency position relationship between the SI and the center frequency point (or other reference time-frequency location);

the terminal may obtain the information of the center frequency point (or other reference time frequency positions) by detecting the SI;

the terminal may need to decode the MIB, and obtain information of a center frequency point (or other reference time-frequency position) from information bits of the MIB;

information bits of the MIB may carry a third identifier (third ID), for example, the first identifier may be represented as t (x, y), where t () is a mapping relation or function, x is the third identifier, and y is information used to represent the first identifier. Examples are as follows: the first identifier is a TRP ID, and is used to indicate that the information of the first identifier is a group ID of the TRP (information carried by a time-frequency positional relationship between a synchronization signal and a reference point), and the third identifier is an intra-group ID of the TRP.

As one embodiment, for example, the first flag may be represented as g2(x, y), where g2() is a mapping relation or function, x is the third flag, and y is information for representing the first flag. And finally, the terminal obtains complete network node identification information according to the information used for representing the first identifier and the information used for representing the second identifier, wherein the network node identification information can be used for initial access, cell reselection, switching and the like, and the second identifier is all or part of the network node identification information except the first identifier.

EXAMPLE five

Referring to fig. 4, a network node is shown, the network node 400 comprising:

a first determining module 401, configured to determine, according to the information indicating the first identifier, a time-frequency position relationship between the synchronization signal and the reference point;

a sending module 402, configured to send a synchronization signal and/or a reference point based on a time-frequency position relationship between the synchronization signal and the reference point;

Optionally, the network node further comprises:

determining the time-frequency position of the synchronous signal;

or,

determining the time-frequency position of a reference point;

Optionally, the mapping relationship between the information representing the first identifier and the time-frequency position relationship between the synchronization signal and the reference point is predetermined or determined by a network node.

Optionally, the network node further comprises:

and the notification module is used for notifying the terminal of the time-frequency position or the reference point of the reference point.

Optionally, the notification module is further configured to: the time-frequency position of the reference point or the reference point is carried in the system information block.

Optionally, the reference time-frequency position may be protocol-agreed.

EXAMPLE six

Referring to fig. 5, a terminal is shown, the terminal 500 comprising:

a third determining module 501, configured to receive a synchronization signal and/or a reference point, and determine a time-frequency position relationship between the synchronization signal and the reference point according to the synchronization signal and the reference point;

a first obtaining module 502, configured to obtain information used for representing a first identifier according to a time-frequency position relationship between the synchronization signal and a reference point;

a second obtaining module 503, configured to obtain the first identifier according to the information indicating the first identifier;

Optionally, the third determining module is further configured to: acquiring the time-frequency position of the synchronization signal in a manner of receiving the synchronization signal or acquiring the time-frequency position of the synchronization signal in a predetermined or pre-detected manner (i.e. acquiring the time-frequency position of the synchronization signal in a manner of not receiving the synchronization signal); determining candidate time-frequency positions of one or more reference points according to the candidate time-frequency position relationship between the synchronization signal and the reference point and the acquired time-frequency position of the synchronization signal; detecting a reference point at a candidate time-frequency position of the determined one or more reference points; and recording the time-frequency position of the detected reference point as the time-frequency position of the reference point, and obtaining the time-frequency position relation between the synchronous signal and the reference point.

Alternatively,

the terminal further comprises:

EXAMPLE seven

Referring to fig. 6, there is shown a network node comprising:

the first processor 604, configured to read the program in the first memory 605, performs the following processes:

the network node determines the time-frequency position relation between the synchronous signal and the reference point according to the information used for representing the first identifier; the network node sends a synchronization signal and/or a reference point based on the time-frequency position relation between the synchronization signal and the reference point; wherein the first identifier is partial identification information of the network node.

A first transceiver 601 for receiving and transmitting data under the control of a first processor 604.

In fig. 6, a bus architecture (represented by a first bus 600), the first bus 600 may include any number of interconnected buses and bridges, with the first bus 600 linking various circuits including one or more processors, represented by a first processor 604, and a first memory 605, represented by a first memory 605. The first bus 600 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. A first bus interface 603 provides an interface between the first bus 600 and the first transceiver 601. The first transceiver 601 may be one element or may be multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the first processor 604 is transmitted over a wireless medium via the first antenna 602. further, the first antenna 602 receives the data and transmits the data to the first processor 604.

The first processor 604 is responsible for managing the first bus 600 and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. While the first memory 605 may be used to store data used by the first processor 604 in performing operations.

Alternatively, the first processor 604 may be a CPU, ASIC, FPGA or CPLD.

Optionally, the information used for representing the first identifier is the first identifier, or a predefined constraint condition is satisfied between the information used for representing the first identifier and the first identifier.

Optionally, the first processor 604: determining the information representing the first identifier.

Optionally, the first processor 604:

determining the time-frequency position of the synchronous signal;

or,

determining the time-frequency position of a reference point;

Optionally, the first processor 604:

Optionally, the first processor 604: and informing the terminal of the time-frequency position or the reference point of the reference point.

Optionally, the first processor 604: the time-frequency position of the reference point or the reference point is carried in the system information block.

Example eight

Referring to fig. 7, there is shown a terminal comprising:

the second processor 704, configured to read the program in the second memory 705, performs the following processes:

receiving a synchronization signal and/or a reference point; determining the time-frequency position relation of the synchronous signal and the reference point according to the synchronous signal and the reference point; acquiring information for representing a first identifier according to the time-frequency position relation between the synchronous signal and a reference point; obtaining a first identifier according to information used for representing the first identifier; wherein the first identifier is partial identification information of the network node.

A second transceiver 701 for receiving and transmitting data under the control of a second processor 704.

In fig. 7, a bus architecture (represented by a second bus 700), the second bus 700 may include any number of interconnected buses and bridges, the second bus 700 linking together various circuits including one or more processors, represented by a second processor 704, and a memory, represented by a second memory 705. The second bus 700 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. A second bus interface 703 provides an interface between the second bus 700 and the second transceiver 701. The second transceiver 701 may be one element or may be multiple elements, such as multiple receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the second processor 904 is transmitted over a wireless medium via the second antenna 702, and further, the second antenna 902 receives and transmits the data to the second processor 704.

The second processor 704 is responsible for managing the second bus 700 and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And a second memory 705 may be used to store data used by the second processor 704 in performing operations.

Alternatively, the second processor 704 may be a CPU, ASIC, FPGA or CPLD.

Optionally, the second processor 704:

acquiring a time-frequency position of a synchronous signal;

determining candidate time-frequency positions of one or more reference points according to the candidate time-frequency position relationship between the synchronization signal and the reference point and the acquired time-frequency position of the synchronization signal;

detecting a reference point at a candidate time-frequency position of the determined one or more reference points;

and recording the time-frequency position of the detected reference point as the time-frequency position of the reference point, and obtaining the time-frequency position relation between the synchronous signal and the reference point.

Optionally, the second processor 704: acquiring the time-frequency position of the synchronous signal; obtaining the time-frequency position of the reference point through reading network notification or according to a predetermined convention; and obtaining the time-frequency position relation of the synchronous signal and the reference point according to the time-frequency positions of the synchronous signal and the reference point.

Optionally, the second processor 704:

determining candidate time-frequency positions of one or more system information blocks corresponding to the synchronization signals according to the time-frequency position relationship between the synchronization signals and the system information blocks corresponding to the synchronization signals or the time-frequency positions of the synchronization signals and the predefined system information blocks; detecting a system information block at the determined one or more candidate time-frequency positions; and reading the time-frequency position or the reference point of the reference point in the detected system information block.

optionally, the second processor 704:

acquiring complete identification information of the network node according to the information for representing the first identifier and the information for representing the second identifier;

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 above-mentioned 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 on the implementation process of the embodiments of the present invention.

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

It should be understood that the term "and/or" herein is merely one type of association relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

In the embodiments provided herein, it should be understood that "B corresponding to a" means that B is associated with a from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may be determined from a and/or other information.

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

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network node) to execute some steps of the transceiving method according to various embodiments of the present invention. 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.

While the preferred embodiments of the present invention have been described, it should be understood that modifications and adaptations to those embodiments may occur to one skilled in the art without departing from the principles of the present invention and are within the scope of the present invention.

Claims

1. A signal transmission method, comprising:

2. The transmission method according to claim 1, wherein the information indicating the first identifier is the first identifier, or a predefined constraint condition is satisfied between the information indicating the first identifier and the first identifier.

3. The transmission method of claim 2, further comprising: the network node determines the information representing the first identity.

4. The sending method of claim 1, wherein if the reference point is a system information block, the sending, by the network node, a synchronization signal and/or a reference point based on the time-frequency position relationship between the synchronization signal and the reference point comprises:

or,

the network node determines the time-frequency position of a reference point;

5. The sending method according to claim 1, wherein if the reference point is a time-frequency location, the sending, by the network node, a synchronization signal and/or a reference point based on the time-frequency location relationship between the synchronization signal and the reference point comprises:

6. The transmission method of claim 1,

7. The transmission method of claim 1,

the first identifier is all or partial information or any combination of the following information, and comprises: system information area or network area ID, transmission reception point TRP ID, and beam ID.

8. The transmission method of claim 1, further comprising:

9. The transmission method of claim 8, further comprising:

10. A signal receiving method, comprising:

11. The receiving method according to claim 10, wherein the information indicating the first identifier is the first identifier, or a predefined constraint is satisfied between the information indicating the first identifier and the first identifier.

12. The receiving method according to claim 10, wherein the terminal receives the synchronization signal and/or the reference point, and determines the time-frequency position relationship between the synchronization signal and the reference point according to the synchronization signal and the reference point, including:

13. The receiving method according to claim 10, wherein the determining the time-frequency position relationship between the synchronization signal and the reference point according to the synchronization signal and the reference point comprises:

the terminal acquires the time-frequency position of the synchronous signal;

14. The receiving method according to claim 13, wherein the terminal obtains the time-frequency location of the reference point by reading a network notification, comprising:

15. The receiving method according to claim 10,

the receiving method further comprises:

16. The receiving method according to claim 10,

the first identifier is all or partial information or any combination of any one of the following information, including: system information area or network area ID, transmission reception point TRP ID, and beam ID.

17. The receiving method according to claim 10,

the mapping relationship between the information for representing the first identifier and the time-frequency position relationship between the synchronization signal and the reference point is predetermined or notified by a network node.

18. The receiving method as claimed in claim 10, wherein the reference point is a system information block or a pre-agreed time-frequency location.

19. A network node, comprising:

20. The network node according to claim 19, wherein the information indicative of the first identifier is the first identifier, or a predefined constraint is satisfied between the information indicative of the first identifier and the first identifier.

21. The network node of claim 20, wherein the network node further comprises:

22. The network node of claim 21, wherein if the reference point is a system information block, the sending module is further configured to:

determining the time-frequency position of the synchronous signal;

or,

determining the time-frequency position of a reference point;

23. The network node of claim 19, wherein if the reference point is a time-frequency location, the sending module is further configured to:

24. A terminal, comprising:

25. The terminal of claim 24,

26. The terminal of claim 24,

the third determination module is further to: acquiring the time-frequency position of the synchronous signal in a mode of receiving the synchronous signal, or acquiring the time-frequency position of the synchronous signal in a pre-appointed or pre-detection mode; determining candidate time-frequency positions of one or more reference points according to the candidate time-frequency position relationship between the synchronization signal and the reference point and the acquired time-frequency position of the synchronization signal; detecting a reference point at a candidate time-frequency position of the determined one or more reference points; and recording the time-frequency position of the detected reference point as the time-frequency position of the reference point, and obtaining the time-frequency position relation between the synchronous signal and the reference point.

27. The terminal of claim 24, wherein the third determining module is further configured to: acquiring a time-frequency position of a synchronous signal; obtaining the time-frequency position of the reference point through reading network notification or according to a predetermined convention; and obtaining the time-frequency position relation of the synchronous signal and the reference point according to the time-frequency positions of the synchronous signal and the reference point.

28. The terminal of claim 27, wherein the third determining module is further configured to: determining candidate time-frequency positions of one or more system information blocks corresponding to the synchronization signals according to the time-frequency position relationship between the synchronization signals and the system information blocks corresponding to the synchronization signals or the time-frequency positions of the synchronization signals and the predefined system information blocks; detecting a system information block at the determined one or more candidate time-frequency positions; and reading the time-frequency position or the reference point of the reference point in the detected system information block.

29. The terminal of claim 24,

the terminal further comprises: