CN113225166A

CN113225166A - Method, device and terminal for sending and receiving quasi co-location information

Info

Publication number: CN113225166A
Application number: CN202010072224.9A
Authority: CN
Inventors: 任晓涛; 赵锐
Original assignee: Datang Mobile Communications Equipment Co Ltd
Current assignee: Datang Mobile Communications Equipment Co Ltd
Priority date: 2020-01-21
Filing date: 2020-01-21
Publication date: 2021-08-06
Anticipated expiration: 2040-01-21
Also published as: CN113225166B

Abstract

The invention discloses a method, a device and a terminal for sending and receiving quasi co-location information. The method for sending the quasi co-location information comprises the following steps: sending a first Synchronization Signal Block (SSB), wherein the first SSB is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH. The scheme of the invention can enable the terminal to combine and detect a plurality of S-SSBs with quasi co-location hypothesis, thereby improving the detection success rate of the S-SSBs and the decoding success rate of the PSBCH.

Description

Method, device and terminal for sending and receiving quasi co-location information

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method, an apparatus, and a terminal for sending and receiving synchronous resource indication information.

Background

In the 5G NR V2X system, terminals communicate directly with each other using a PC5 port (Sidelink). Before the service data transmission, synchronization is established between two terminals which need to communicate first at port PC5 (Sidelink). The method for establishing synchronization is that one terminal A sends synchronization and broadcast signals, the other terminal B receives the synchronization and broadcast signals sent by the terminal A, once the terminal B successfully receives and demodulates, the two terminals can establish synchronization, and preparation is made for the next step of direct communication.

The Synchronization Signal of the NR UU port is carried by an SSB Block (Synchronization Signal Block). Each Slot carries 2 SSB blocks and there is no time-domain repetition mechanism for PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal) signals.

In order to complete Beam measurement and Beam selection, the SSB at the NR UU port needs to perform Beam scanning (Beam scanning), where the Beam scanning is that the base station transmits the SSB once in each possible Beam direction within a certain time interval (5ms), and then the terminal measures the SSB signal strength of each Beam and reports the measurement result to the base station, and the base station selects the most suitable Beam to transmit data to the terminal according to the measurement result reported by the terminal. The number of directions in which beams need to be scanned is also different according to different carrier frequencies and different subcarrier intervals. The maximum values of the SSB beam scanning candidate directions in different carrier frequency ranges are respectively: 4/8/64, the number of beam scanning directions actually deployed cannot exceed this maximum.

In the existing LTE V2X technology, at most 3 synchronization subframes are configured on the Sidelink direct link every 160ms, the UE transmits and receives the Sidelink synchronization signal and the broadcast information on the synchronization subframes, and the UE does not perform beam scanning when transmitting and receiving the synchronization signal and the broadcast information on the synchronization subframes. With the emergence of 5G NR, the technology of vehicle networking is promoted to be further developed so as to meet the requirements of new application scenarios. The 5G NR supports a larger bandwidth, flexible configuration of subcarrier spacing, transmission of synchronization signals and broadcast information in the form of SSB beam scanning or beam repetition. This brings new challenges to the design of the NR V2X physical layer structure, and the transmission and reception of the synchronization signals and broadcast information performed by the UE on the synchronization sub-frames need to be redesigned, and an SSB beam scanning or beam repeating mechanism needs to be introduced to meet the requirement of NR V2X.

However, after the mechanism of SSB beam scanning or beam repetition is introduced into the NR V2X, multiple synchronization signal blocks SSB are transmitted in one synchronization period, and in order to increase the success rate of SSB detection, SSBs with quasi-co-location hypothesis need to be combined, so how to notify the terminal of the quasi-co-location information becomes an urgent problem to be solved.

Disclosure of Invention

The embodiment of the invention provides a method, a device and a terminal for sending and receiving quasi-co-location information. The terminal can combine and detect a plurality of S-SSBs with quasi-co-location, thereby improving the detection success rate of the S-SSBs and the decoding success rate of the PSBCH.

In order to solve the above technical problem, an embodiment of the present invention provides the following technical solutions:

a method for sending quasi-co-location information is applied to a terminal at a sending side, and comprises the following steps:

sending a first Synchronization Signal Block (SSB), wherein the first SSB is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH.

Optionally, the first information refers to the number N of SSBs included in a first SSB set in one synchronization period, and the transmission beam directions of the SSBs in the first SSB set are different from each other.

Optionally, when the system configures multiple synchronization resource sets, the SSBs in the first SSB set belong to the same synchronization resource set.

Optionally, the first information refers to the number M of SSBs included in a second SSB set in one synchronization period, and the transmission beam directions of the SSBs in the second SSB set are the same.

Optionally, when the system configures multiple synchronization resource sets, the SSBs in the second SSB set belong to the same synchronization resource set.

Optionally, the configuring, by the system, a plurality of synchronization resource sets includes: the system configures two synchronous resource sets for the terminal, or the system configures three synchronous resource sets for the terminal.

Optionally, when the system configures two synchronization resource sets for the terminal, the terminal uses one of the two synchronization resource sets to send the synchronization signal block SSB, and the terminal uses the other of the two synchronization resource sets to receive the synchronization signal block SSB.

Optionally, when the system configures three synchronization resource sets for the terminal, the terminal uses a first synchronization resource set of the three synchronization resource sets to send the synchronization signal block SSB, the terminal uses a second synchronization resource set of the three synchronization resource sets to receive the synchronization signal block SSB, and the terminal uses a third synchronization resource set of the three synchronization resource sets to send the synchronization signal block SSB when being directly synchronized with the GNSS.

Optionally, the sending method of the quasi co-location information further includes: acquiring a third SSB set according to at least one item of information in the N and the M, wherein the SSBs in the third SSB set have the same quasi co-location information; wherein N is the number of SSBs included in a first SSB set in a synchronization period, and the transmission beam directions of the SSBs in the first SSB set are different from each other; m is the number of SSBs included in the second SSB set in one synchronization period, and the transmission beam directions of the SSBs in the second SSB set are the same.

Optionally, the SSBs in the third set of SSBs have the same Q value, wherein,

q SSB _ index mod P or Q slot _ number mod P;

the SSB _ index refers to the SSB index number, slot _ number refers to the number of the through link slot, P refers to N or M, and mod refers to a modulo function.

Optionally, the SSBs in the third set of SSBs have the same Q value, wherein,

q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P);

the SSB _ index refers to the SSB index number, slot _ number refers to the number of through link slots, P refers to N or M, and the function f (x) refers to an upward integer function or a downward integer function.

Optionally, when the system configures multiple synchronization resource sets, the SSBs in the third SSB set belong to the same synchronization resource set.

Optionally, the quasi co-location information between the SSBs is related to at least one of a frequency band in which the SSBs are located, a subcarrier spacing SCS used by the SSBs, and a number of SSBs included in a synchronization period of a system configuration.

Optionally, for the operating frequency band FR1, all SSBs in a synchronization period are quasi co-located;

for the operating band FR2, SSBs with the same Q value in one synchronization cycle are quasi co-located;

wherein, Q is SSB _ index mod P or slot _ number mod P; the SSB _ index refers to the SSB index number, the slot _ number refers to a through link slot number, and P refers to N or M; mod is a modulo function;

or Q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P); the SSB _ index refers to the SSB index number, slot _ number refers to a through link slot number, P refers to N or M, and the function f (x) refers to an upward integer function or a downward integer function;

wherein N is the number of SSBs included in a first SSB set in a synchronization period, and the transmission beam directions of the SSBs in the first SSB set are different from each other; m is the number of SSBs included in the second SSB set in one synchronization period, and the transmission beam directions of the SSBs in the second SSB set are the same.

Optionally, all SSBs belonging to the same synchronization resource set and sent in one synchronization period are quasi co-located; or,

SSBs with the same SSB index number sent within one synchronization period are quasi co-located.

Optionally, the PBCH refers to a direct link physical broadcast channel PSBCH, and the SSB refers to a direct link synchronization signal block S-SSB.

The embodiment of the invention also provides a method for receiving the quasi-co-location information, which is applied to a receiving side terminal and comprises the following steps:

receiving a first Synchronization Signal Block (SSB), wherein the first SSB is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH.

Optionally, the system configures a plurality of synchronization resource sets including: the system configures two synchronous resource sets for the terminal, or the system configures three synchronous resource sets for the terminal.

Optionally, the system configures two synchronization resource sets for the terminal, the terminal uses one of the two synchronization resource sets to send the synchronization signal block SSB, and the terminal uses the other of the two synchronization resource sets to receive the synchronization signal block SSB.

Optionally, the system configures three synchronization resource sets for the terminal, where the terminal uses a first synchronization resource set of the three synchronization resource sets to send the synchronization signal block SSB, the terminal uses a second synchronization resource set of the three synchronization resource sets to receive the synchronization signal block SSB, and the terminal uses a third synchronization resource set of the three synchronization resource sets to send the synchronization signal block SSB when directly synchronizing with the GNSS.

Optionally, the method for receiving quasi-co-location information further includes: acquiring a third SSB set according to at least one item of information in the N and the M, wherein the SSBs in the third SSB set have the same quasi co-location information; wherein N is the number of SSBs included in a first SSB set in a synchronization period, and the transmission beam directions of the SSBs in the first SSB set are different from each other; m is the number of SSBs included in the second SSB set in one synchronization period, and the transmission beam directions of the SSBs in the second SSB set are the same.

Optionally, the SSBs in the third set of SSBs have the same Q value, wherein,

q SSB _ index mod P or Q slot _ number mod P;

Optionally, the SSBs in the third set of SSBs have the same Q value, wherein,

q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P);

Optionally, the method for receiving quasi-co-location information further includes: and merging and decoding the SSBs in the third set of S-SSBs.

Optionally, the merging and decoding the SSBs in the third SSB set includes:

all SSBs are combined and then decoded, or a part of SSBs are combined and then decoded; or,

and merging and decoding the whole SSB, or merging and decoding the PSBCH in the SSB.

or Q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P); the SSB _ index refers to the index number of the SSB, slot _ number refers to the slot number of the through link, P refers to N or M, and the function f (x) refers to an upward integer function or a downward integer function;

Optionally, all SSBs belonging to the same synchronization resource set received in one synchronization period are quasi co-located; or,

SSBs that receive the same SSB index number within a synchronization period are quasi co-located.

An embodiment of the present invention further provides a terminal, including: the transceiver, the processor, the memorizer, store the procedure that the said processor can carry out on the said memorizer; the processor implements, when executing the program: sending a first Synchronization Signal Block (SSB), wherein the first SSB is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH.

The embodiment of the invention also provides a device for sending the quasi-co-location information, which is applied to a terminal, and the device comprises:

the device comprises a transceiver module and a processing module, wherein the transceiver module is used for transmitting a first Synchronization Signal Block (SSB), the first SSB is configured or carries first information through a first mode, and the first information indicates quasi co-location information among a plurality of SSBs.

An embodiment of the present invention further provides a terminal, including: the transceiver, the processor, the memorizer, store the procedure that the said processor can carry out on the said memorizer; the processor implements, when executing the program: receiving a first Synchronization Signal Block (SSB), wherein the first SSB is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH.

The embodiment of the invention also provides a device for receiving the quasi-co-location information, which is applied to a terminal, and the device comprises: the device comprises a transceiver module, configured to receive a first synchronization signal block SSB, where the first SSB configures or carries first information in a first manner, and the first information indicates quasi co-location information among multiple SSBs.

Embodiments of the present invention also provide a processor-readable storage medium having stored thereon processor-executable instructions for causing a processor to perform the method as described above.

The embodiment of the invention has the beneficial effects that:

in the embodiment of the invention, the terminal is informed of which S-SSBs currently received by the terminal are quasi co-located by using a method carried by a physical broadcast channel or pre-configured, so that the terminal can detect after combining a plurality of S-SSBs with a quasi co-located hypothesis, thereby improving the detection success rate of the S-SSBs and the decoding success rate of the PSBCH.

Drawings

Fig. 1 is a schematic flow chart of a method for sending quasi-co-location information according to an embodiment of the present invention;

FIG. 2 is a diagram illustrating an implementation of a first message in an embodiment of the invention;

FIG. 3 is a diagram illustrating another implementation of first information in an embodiment of the invention;

fig. 4 is a schematic flow chart of a method for receiving quasi-co-location information according to an embodiment of the present invention;

fig. 5 is a schematic diagram of an architecture of a terminal on a transmitting side according to an embodiment of the present invention;

fig. 6 is a block diagram of a quasi-co-located information sending apparatus according to an embodiment of the present invention;

fig. 7 is a schematic diagram of a terminal on a receiving side according to an embodiment of the present invention;

fig. 8 is a block diagram of a device for receiving quasi-co-location information according to an embodiment of the present invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can 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 invention to those skilled in the art.

As shown in fig. 1, an embodiment of the present invention provides a method for sending quasi-co-located information, which is applied to a terminal, and the method includes:

step 11, sending a first synchronization signal block SSB, where the first SSB configures or carries first information in a first manner, and the first information indicates Quasi Co-Location information (Quasi Co-Location, QCL for short) among multiple SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH.

In the embodiment of the invention, the SSB is a through link synchronization signal block S-SSB, the PBCH is a physical through link broadcast channel PSBCH, and the synchronization resource refers to a through link synchronization resource.

In this embodiment, in order to notify the quasi co-location information to the terminal, the physical broadcast channel is required to carry the quasi co-location information. And the quasi-co-location information can be carried and transmitted by at least one of a physical broadcast channel PBCH load and a demodulation reference signal DMRS corresponding to the physical broadcast channel PBCH. That is, the following three ways can be adopted:

mode 1: the quasi co-location information is carried by PBCH load of a physical broadcast channel;

mode 2: the quasi-co-location information is carried by a demodulation reference signal DMRS corresponding to a physical broadcast channel PBCH;

mode 3: the quasi-co-location information carries a part of information through the load of the physical broadcast channel PBCH, and the rest information is carried by the demodulation reference signal DMRS corresponding to the physical broadcast channel PBCH.

By adopting the notification method, the quasi co-location information can be flexibly configured by changing the content carried by the physical broadcast channel PBCH, that is, the content of different quasi co-location information can be configured according to different scenes.

And informing the quasi co-location information to the terminal in a pre-configured mode. Namely: the quasi co-location information is preset, and the terminal directly reads the value of the configured quasi co-location information after being started without signaling.

When the quasi co-location information is configured in a pre-configuration mode, N SSBs belonging to a first SSB set are pre-configured; or M SSBs are preconfigured to belong to a second set of SSBs; or the Q value of each SSB is preconfigured; or a third set of SSBs with the same Q value are preconfigured. That is, for any SSB, the quasi co-location information between it and other SSBs is pre-configured, thus avoiding the signaling overhead of signaling the quasi co-location information between each SSB and other SSBs. The embodiment adopts the notification mode, and does not occupy the signaling overhead of the physical broadcast channel.

In an optional embodiment of the present invention, a method for sending quasi-co-location information includes: and sending a first Synchronization Signal Block (SSB), wherein the first SSB comprises a Physical Broadcast Channel (PBCH) and is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs in an SSB period. The first information refers to the number N of SSBs included in a first SSB set within one SSB period, and the transmission beam directions of the SSBs in the first SSB set are different from each other; or, N is equal to the number of SSB beams with different directions during SSB beam scanning transmission. When the system is configured with a plurality of synchronous resource sets, the SSBs in the first SSB set belong to the same synchronous resource set. The system configuring a plurality of sets of synchronization resources comprises: the system configures two synchronous resource sets for the terminal, or the system configures three synchronous resource sets for the terminal. When the system configures two synchronous resource sets for the terminal, the terminal uses one of the two synchronous resource sets to send a synchronous signal block SSB, and the terminal uses the other of the two synchronous resource sets to receive the synchronous signal block SSB. When the system configures three synchronous resource sets for a terminal, the terminal uses a first synchronous resource set in the three synchronous resource sets to send a synchronous signal block SSB, the terminal uses a second synchronous resource set in the three synchronous resource sets to receive the synchronous signal block SSB, and the terminal uses a third synchronous resource set in the three synchronous resource sets to send the synchronous signal block SSB when being directly synchronized with a GNSS.

As shown in FIG. 2, a time domain position diagram is sent for the S-SSB set at 120KHz subcarrier spacing. One synchronization period is 160ms, and the synchronization period comprises 160 subframes. Since it is 120KHz, a sub-frame contains 8 slots, and each small bar represents a slot. The small bars of the pattern represent synchronization slots, i.e., slots containing S-SSB. The small white bar is not a synchronization slot, i.e., represents a slot that does not contain an S-SSB. In fig. 2, a 160ms period contains a synchronization resource set comprising 16S-SSBs, with different patterns indicating different beam directions. It can be seen that the 16S-SSBs include 8S-SSBs with different beam directions, and the S-SSBs with each same beam direction are repeatedly transmitted twice.

The first information refers to the number N of S-SSBs included in a first S-SSB set within one S-SSB period, where transmission beam directions of S-SSBs in the first S-SSB set are different from each other, so as to obtain N ═ 8 as shown in fig. 2, that is: the first set of S-SSBs comprises 8S-SSBs with mutually different beam directions. Whereas in fig. 2 one set of S-SSBs (16S-SSBs) is divided into two first sets of S-SSBs (each first set of S-SSBs contains 8S-SSBs).

By adopting the method for notifying the quasi-co-location information, the terminal can know which received S-SSBs are quasi-co-located, so that the terminal can detect the S-SSBs with the quasi-co-location hypothesis after combining the S-SSBs, and the detection success rate of the S-SSBs and the decoding success rate of the PSBCH are improved.

In another optional embodiment of the present invention, a method for sending quasi-co-location information includes:

and sending a first Synchronization Signal Block (SSB), wherein the first SSB comprises a Physical Broadcast Channel (PBCH) and is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs in an SSB period. The first information refers to the number M of SSBs included in a second SSB set within one SSB period, and the transmission beam directions of the SSBs in the second SSB set are the same; or, M is equal to the number of SSB beams having the same direction when the SSB beams are repeatedly transmitted. And when the system is configured with a plurality of synchronous resource sets, the SSBs in the second SSB set belong to the same synchronous resource set. The system configuring a plurality of sets of synchronization resources comprises: the system configures two synchronous resource sets for the terminal, or the system configures three synchronous resource sets for the terminal. When the system configures two synchronous resource sets for the terminal, the terminal uses one of the two synchronous resource sets to send a synchronous signal block SSB, and the terminal uses the other of the two synchronous resource sets to receive the synchronous signal block SSB. When the system configures three synchronous resource sets for a terminal, the terminal uses a first synchronous resource set in the three synchronous resource sets to send a synchronous signal block SSB, the terminal uses a second synchronous resource set in the three synchronous resource sets to receive the synchronous signal block SSB, and the terminal uses a third synchronous resource set in the three synchronous resource sets to send the synchronous signal block SSB when being directly synchronized with a GNSS.

As shown in FIG. 3, a time domain position diagram is sent for the S-SSB set at 120KHz subcarrier spacing. One synchronization period is 160ms, and the synchronization period comprises 160 subframes. Since it is 120KHz, a sub-frame contains 8 slots, and each small bar represents a slot. The small bars of the pattern represent synchronization slots, i.e., slots containing S-SSB. The small white bar is not a synchronization slot, i.e., represents a slot that does not contain an S-SSB. In fig. 3, a 160ms period contains a synchronization resource set comprising 16S-SSBs, with different patterns indicating different beam directions. It can be seen that the 16S-SSBs include 4S-SSBs with different beam directions, and each S-SSB with the same beam direction is repeatedly transmitted 4 times.

The first information refers to the number M of S-SSBs included in a second set of S-SSBs within one S-SSB period, where the transmission beam directions of the S-SSBs in the second set of S-SSBs are different from each other, so as to be shown in fig. 3, where M is 4, that is: the second set of S-SSBs comprises 4S-SSBs with mutually different beam directions. In FIG. 3, one S-SSB set (16S-SSBs) is divided into 4 second S-SSB sets (each second S-SSB set contains 4S-SSBs).

In an optional embodiment of the present invention, the sending method of the quasi-co-location information may further include:

acquiring a third SSB set according to at least one item of information in the N and the M, wherein the SSBs in the third SSB set have the same quasi co-location information; wherein N is the number of SSBs included in a first SSB set in a synchronization period, and the transmission beam directions of the SSBs in the first SSB set are different from each other; m is the number of SSBs included in the second SSB set in one synchronization period, and the transmission beam directions of the SSBs in the second SSB set are the same.

In one implementation, the SSBs of the third set of SSBs have the same Q value, wherein,

q SSB _ index mod P or Q slot _ number mod P;

In another implementation, the SSBs in the third set of SSBs have the same Q value, wherein,

q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P);

In an optional embodiment of the present invention, the quasi co-location information of the SSBs is related to at least one of a frequency band in which the SSBs are located, a subcarrier spacing SCS used by the SSBs, and a number of SSBs included in one synchronization period of a system configuration.

For the operating band FR1 (e.g., the portion below 6GHz), all SSBs within one synchronization period are quasi co-located;

for the operating frequency band FR2 (e.g., 24.25GHz-52.6GHz), SSBs with the same Q value in one synchronization cycle are quasi co-located; wherein, Q is SSB _ index mod P or slot _ number mod P; the SSB _ index refers to the SSB index number, the slot _ number refers to the through link slot number, P refers to N or M, and mod refers to a modulus function; or Q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P); the SSB _ index refers to an SSB index number, the slot _ number refers to a through link slot number, P refers to N or M, the function f (x) refers to an upward integer function or a downward integer function, N is the number of SSBs included in a first SSB set in one synchronization period, and the transmission beam directions of the SSBs in the first SSB set are different from each other; m is the number of SSBs included in the second SSB set in one synchronization period, and the transmission beam directions of the SSBs in the second SSB set are the same.

For the operating frequency band FR1, only beam repetition is used, and beam scanning is not used, so all SSBs belonging to the same synchronization resource in one synchronization period are quasi co-located;

for the operating band FR2, both beam repetition and beam scanning are used, so SSBs with the same beam direction, i.e. SSBs with the same Q value in one synchronization period, are quasi co-located.

By adopting the notification method, the embodiment can flexibly determine the quasi co-location assumption of the SSBs according to the frequency band where the SSBs are located, the used SCS, or the number of SSBs included in one period.

In an optional embodiment of the present invention, all SSBs belonging to the same synchronization resource set and sent in one synchronization cycle are quasi co-located; alternatively, SSBs with the same SSB index number sent in one synchronization cycle are quasi co-located.

In an optional embodiment of the present invention, when the quasi-co-location information is indicated in a manner carried by a PSBCH payload, the PSBCH table may be as follows:

in an embodiment corresponding to PSBCH table 1, the method for sending quasi-co-location information includes: and sending a first Synchronization Signal Block (SSB), wherein the first SSB comprises a Physical Broadcast Channel (PBCH) and carries quasi co-location information through the PBCH, and the quasi co-location information indicates the quasi co-location information between the first SSB and other SSBs. Besides the quasi co-location information, the physical through link broadcast channel needs to transmit other information, and as shown in the following table, at least the contents that need to be included in the PSBCH payload of the through link physical broadcast channel are as shown in the table. Note: in addition to the contents of the table below, other information may be included in the direct link physical broadcast channel payload.

The embodiment adopts the design scheme of the content of the direct link physical broadcast channel, can flexibly configure the quasi co-location information of the currently sent S-SSB by changing the content carried by the physical broadcast channel, and has high flexibility.

In an embodiment corresponding to PSBCH table 2, a method for sending quasi-co-location information includes: and sending a first Synchronization Signal Block (SSB), wherein the first SSB comprises a Physical Broadcast Channel (PBCH) and carries quasi co-location information through the PBCH, and the quasi co-location information indicates the quasi co-location information between the first SSB and other SSBs. Besides the quasi co-location information, the physical through link broadcast channel needs to transmit other information, and as shown in the following table, at least the contents that need to be included in the PSBCH payload of the through link physical broadcast channel are as shown in the table. Note: in addition to the contents of the table below, other information may be included in the direct link physical broadcast channel payload.

In an embodiment corresponding to PSBCH table 3, the method for sending quasi-co-location information includes: and sending a first Synchronization Signal Block (SSB), wherein the first SSB comprises a Physical Broadcast Channel (PBCH) and carries quasi co-location information through the PBCH, and the quasi co-location information indicates the quasi co-location information between the first SSB and other SSBs. Besides the quasi co-location information, the physical through link broadcast channel needs to transmit other information, and as shown in the following table, at least the contents that need to be included in the PSBCH payload of the through link physical broadcast channel are as shown in the table. Note: in addition to the contents of the table below, other information may be included in the direct link physical broadcast channel payload.

In an embodiment corresponding to PSBCH table 4, the method for sending quasi-co-location information includes: and sending a first Synchronization Signal Block (SSB), wherein the first SSB comprises a Physical Broadcast Channel (PBCH) and carries quasi co-location information through the PBCH, and the quasi co-location information indicates the quasi co-location information between the first SSB and other SSBs. Besides the quasi co-location information, the physical through link broadcast channel needs to transmit other information, and as shown in the following table, at least the contents that need to be included in the PSBCH payload of the through link physical broadcast channel are as shown in the table. Note: in addition to the contents of the table below, other information may be included in the direct link physical broadcast channel payload.

In an embodiment corresponding to PSBCH table 5, the method for sending quasi-co-location information includes: and sending a first Synchronization Signal Block (SSB), wherein the first SSB comprises a Physical Broadcast Channel (PBCH) and carries quasi co-location information through the PBCH, and the quasi co-location information indicates the quasi co-location information between the first SSB and other SSBs. Besides the quasi co-location information, the physical through link broadcast channel needs to transmit other information, and as shown in the following table, at least the contents that need to be included in the PSBCH payload of the through link physical broadcast channel are as shown in the table. Note: in addition to the contents of the table below, other information may be included in the direct link physical broadcast channel payload.

In an embodiment corresponding to PSBCH table 6, the method for sending quasi-co-location information includes: and sending a first Synchronization Signal Block (SSB), wherein the first SSB comprises a Physical Broadcast Channel (PBCH) and carries quasi co-location information through the PBCH, and the quasi co-location information indicates the quasi co-location information between the first SSB and other SSBs. Besides the quasi co-location information, the physical through link broadcast channel needs to transmit other information, and as shown in the following table, at least the contents that need to be included in the PSBCH payload of the through link physical broadcast channel are as shown in the table. Note: in addition to the contents of the table below, other information may be included in the direct link physical broadcast channel payload.

The embodiment of the invention is applied to the method for sending the quasi co-location information in the direct communication link, and can inform the terminal which S-SSBs currently received by the terminal are quasi co-location by using a physical broadcast channel carrying or pre-configuration method, so that the terminal can detect after combining a plurality of S-SSBs with the quasi co-location hypothesis, thereby improving the detection success rate of the S-SSBs and the decoding success rate of the PSBCH.

As shown in fig. 4, an embodiment of the present invention further provides a method for receiving quasi-co-located information, which is applied to a terminal, and the method includes:

step 41, receiving a first synchronization signal block SSB, where the first SSB configures or carries first information in a first manner, and the first information indicates quasi co-location information among multiple SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH.

Optionally, the method for receiving quasi-co-location information may further include:

step 42, acquiring a third SSB set according to at least one item of information in the N and the M, wherein the SSBs in the third SSB set have the same quasi co-location information; wherein N is the number of SSBs included in a first SSB set in a synchronization period, and the transmission beam directions of the SSBs in the first SSB set are different from each other; m is the number of SSBs included in the second SSB set in one synchronization period, and the transmission beam directions of the SSBs in the second SSB set are the same.

Optionally, the SSBs in the third set of SSBs have the same Q value, wherein,

q SSB _ index mod P or Q slot _ number mod P;

Optionally, the SSBs in the third set of SSBs have the same Q value, wherein,

q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P);

and 43, merging the SSBs in the third S-SSB set and then decoding. Optionally, the step may include:

step 431, decoding all the SSBs after combination, or decoding a part of the SSBs after combination; or,

and step 432, decoding the integrated SSB, or decoding the PSBCH in the SSB after merging.

Optionally, the quasi co-location information of the SSB is related to at least one of a frequency band where the SSB is located, a subcarrier spacing SCS used by the SSB, and a number of SSBs included in a synchronization period of a system configuration.

wherein, Q is SSB _ index mod P or slot _ number mod P; the SSB _ index refers to the SSB index number, the slot _ number refers to a through link slot number, and P refers to N or M;

or Q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P); the SSB _ index refers to the SSB index number, the slot _ number refers to a through link slot number, P refers to N or M, the function f (x) refers to an upward integer function or a downward integer function, N is the number of SSBs included in a first SSB set in a synchronization period, and the transmission beam directions of the SSBs in the first SSB set are different from each other; m is the number of SSBs included in the second SSB set in one synchronization period, and the transmission beam directions of the SSBs in the second SSB set are the same.

SSBs with the same SSB index number received within one synchronization period are quasi co-located.

The following describes, with reference to fig. 2 and fig. 3, an implementation procedure for acquiring the third SSB set according to at least one of the information N and M, specifically:

in an optional embodiment of the present invention, a method for receiving quasi-co-location information includes: receiving a first Synchronization Signal Block (SSB), wherein the first SSB comprises a Physical Broadcast Channel (PBCH) and is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs in an SSB period;

And when the system is configured with a plurality of synchronous resource sets, the SSBs in the third SSB set belong to the same synchronous resource set.

Here, SSBs in the third set of SSBs have the same Q value, and the Q value is calculated by:

Q＝SSB_index mod P；

the SSB _ index refers to the SSB index number, P may refer to N, and mod refers to a modulo function.

As shown in fig. 2, an SSB set includes 16 SSBs, and the value range of SSB _ index is [0,15], and SSB _ index is identified in fig. 2 in the small vertical bar of each SSB and represented by a white font. P-N-8, so: q SSB _ index mod P SSB _ index mod 8.

Then, the value range of Q is 0,1, 2, 3, 4, 5, 6, 7.

The correspondence between the Q value and the SSB _ index is shown in the following table:

third set of SSBs	SSB_index	Q
			1 st third set of SSBs	{0,8}	0
2 nd third set of SSBs	{1,9}	1
			3 rd third set of SSBs	{2,10}	2
4 th third set of SSBs	{3,11}	3
			5 th third set of SSBs	{4,12}	4
6 th third SSB set	{5,13}	5
			7 th third set of SSBs	{6,14}	6
8 th third set of SSBs	{7,15}	7

Thus, SSBs with the same pattern have the same beam direction and also the same Q value, which also belong to the same third set of SSBs. SSBs in the same third set of SSBs may be merged for detection.

When the transmission of the SSB in one synchronization period is performed in a beam scanning first and beam repeating second manner (such as the SSB transmission manner shown in fig. 2), the Q value is generally obtained in the manner of this embodiment.

Further, the method may further include: and merging and decoding the SSBs in the third set of S-SSBs.

Specifically, all SSBs are combined and then decoded, or a part of the SSBs are combined and then decoded; or,

and merging and decoding the whole SSB, or merging and decoding the PSBCH in the SSB. By adopting the method for notifying the quasi-co-location information, the terminal can know which received S-SSBs are quasi-co-located, so that the terminal can detect the S-SSBs with the quasi-co-location hypothesis after combining the S-SSBs, and the detection success rate of the S-SSBs and the decoding success rate of the PSBCH are improved.

In another optional embodiment of the present invention, a method for receiving quasi-co-location information includes: receiving a first Synchronization Signal Block (SSB), wherein the first SSB comprises a Physical Broadcast Channel (PBCH) and is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs in an SSB period;

When the first information refers to the number M of SSBs included in a second SSB set within one SSB period, the transmission beam directions of the SSBs in the second SSB set are the same; and acquiring a third SSB set according to the M information, wherein the SSBs in the third SSB set have the same quasi co-location information. And when the system is configured with a plurality of synchronous resource sets, the SSBs in the third SSB set belong to the same synchronous resource set.

The SSBs in the third set of SSBs have the same Q value, and the Q value is calculated by:

Q＝f(SSB_index/P)；

the SSB _ index refers to the SSB index number, P may refer to M, f (x) is a floor function.

As shown in fig. 3, an SSB set includes 16 SSBs, and the value range of SSB _ index is [0,15], where SSB _ index is identified in fig. 3 in the small vertical bar of each SSB and is represented by a white font. P ═ M ═ 4, so:

Q＝f(SSB_index/P)＝f(SSB_index/4)。

then, the value range of Q is 0,1, 2, 3.

third set of SSBs	SSB_index	Q
			1 st third set of SSBs	{0,1,2,3}	0
2 nd third set of SSBs	{4,5,6,7}	1
			3 rd third set of SSBs	{8,9,10,11}	2
4 th third set of SSBs	{12,13,14,15}	3

When the transmission of the SSB in one synchronization period is performed in a beam-first repetition and beam-second scanning manner (such as the SSB transmission manner shown in fig. 3), the Q value is generally obtained in the manner of this embodiment.

The embodiment of the invention is applied to the method for receiving the quasi-co-location information in the direct communication link, and can use a physical broadcast channel to carry or pre-configure the method to inform the terminal which S-SSBs currently received by the terminal are quasi-co-location, so that the terminal can combine and detect a plurality of S-SSBs with the quasi-co-location hypothesis, thereby improving the detection success rate of the S-SSBs and the decoding success rate of the PSBCH.

As shown in fig. 5, an embodiment of the present invention further provides a terminal 50, including: a transceiver 51, a processor 52, and a memory 53, wherein the memory 53 stores programs executable by the processor 52; the processor implements, when executing the program: sending a first Synchronization Signal Block (SSB), wherein the first SSB is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH.

Optionally, the sending method of the quasi-co-location information may further include:

acquiring a third SSB set according to the at least one item of information in the N and the M, wherein the SSBs in the third SSB set have the same quasi co-location information; wherein N is the number of SSBs included in a first SSB set in a synchronization period, and the transmission beam directions of the SSBs in the first SSB set are different from each other; m is the number of SSBs included in the second SSB set in one synchronization period, and the transmission beam directions of the SSBs in the second SSB set are the same.

q SSB _ index mod P or Q slot _ number mod P;

q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P);

Optionally, the quasi co-location information of the SSB is related to at least one of a frequency band where the SSB is located, a used subcarrier spacing SCS, and a number of SSBs included in one synchronization period.

wherein, Q is SSB _ index mod P or slot _ number mod P; the SSB _ index refers to the SSB index number, the slot _ number refers to the through link slot number, P refers to N or M, and mod refers to a modulus function;

It should be noted that the terminal in this embodiment is a terminal corresponding to the method shown in fig. 1, and the implementation manners in the above embodiments are all applicable to the embodiment of the terminal, and the same technical effects can be achieved. In the terminal, the transceiver 51 and the memory 53, and the transceiver 51 and the processor 52 may be communicatively connected through a bus interface, and the function of the processor 52 may also be implemented by the transceiver 51, and the function of the transceiver 51 may also be implemented by the processor 52. It should be noted that, the terminal provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

As shown in fig. 6, an embodiment of the present invention further provides an apparatus 60 for sending quasi-co-located information, which is applied to a terminal, and the apparatus includes:

a transceiver module 61, configured to send a first synchronization signal block SSB, where the first SSB configures or carries first information in a first manner, and the first information indicates quasi co-location information among multiple SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH.

Optionally, the transceiver module 61 may further be configured to: acquiring a third SSB set according to at least one item of information in the N and the M, and sending the third SSB set to other terminals; SSBs in the third set of SSBs have the same quasi co-location information; wherein N is the number of SSBs included in a first SSB set in a synchronization period, and the transmission beam directions of the SSBs in the first SSB set are different from each other; m is the number of SSBs included in the second SSB set in one synchronization period, and the transmission beam directions of the SSBs in the second SSB set are the same.

q SSB _ index mod P or Q slot _ number mod P;

q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P);

It should be noted that the apparatus in this embodiment is an apparatus corresponding to the method shown in fig. 1, and the implementation manners in the above embodiments are all applicable to the embodiment of the apparatus, and the same technical effects can be achieved. The apparatus may further include a processing module 62 and the like for processing the information transmitted by the transceiver module 61 and the like. It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

As shown in fig. 7, an embodiment of the present invention further provides a terminal 70, including: a transceiver 71, a processor 72, and a memory 73, wherein the memory 73 stores programs executable by the processor 72; the processor 72, when executing the program, implements: receiving a first Synchronization Signal Block (SSB), wherein the first SSB is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH.

Optionally, the processor 72 is further configured to obtain a third SSB set according to at least one of the information N and the information M, where SSBs in the third SSB set have the same quasi co-location information; wherein N is the number of SSBs included in a first SSB set in a synchronization period, and the transmission beam directions of the SSBs in the first SSB set are different from each other; m is the number of SSBs included in the second SSB set in one synchronization period, and the transmission beam directions of the SSBs in the second SSB set are the same.

Optionally, the SSBs in the third set of SSBs have the same Q value, wherein,

q SSB _ index mod P or Q slot _ number mod P;

Optionally, the SSBs in the third set of SSBs have the same Q value, wherein,

q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P);

Optionally, the processor 72 is further configured to merge SSBs in the third set of S-SSBs and then decode the merged SSBs.

Optionally, the merging and decoding the SSBs in the third SSB set includes:

all SSBs are combined and then decoded, or a part of SSBs are combined and then decoded; or, the SSBs are combined and decoded, or the PSBCH in the SSBs is combined and decoded.

It should be noted that the terminal in this embodiment is a terminal corresponding to the method shown in fig. 4, and the implementation manners in the above embodiments are all applicable to the embodiment of the terminal, and the same technical effects can be achieved. In the terminal, the transceiver 71 and the memory 73, and the transceiver 71 and the processor 72 may be communicatively connected through a bus interface, and the functions of the processor 72 may also be implemented by the transceiver 71, and the functions of the transceiver 71 may also be implemented by the processor 72. It should be noted that, the terminal provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

As shown in fig. 8, an apparatus 80 for receiving quasi-co-located information is applied to a terminal, and the apparatus includes:

a transceiver module 81, configured to receive a first synchronization signal block SSB, where the first SSB configures or carries first information in a first manner, and the first information indicates quasi co-location information among multiple SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH.

Optionally, the apparatus for receiving quasi-co-location information further includes: a processing module 82, configured to obtain a third SSB set according to at least one item of information in N and M, where SSBs in the third SSB set have the same quasi-co-location information; wherein N is the number of SSBs included in a first SSB set in a synchronization period, and the transmission beam directions of the SSBs in the first SSB set are different from each other; m is the number of SSBs included in the second SSB set in one synchronization period, and the transmission beam directions of the SSBs in the second SSB set are the same.

Optionally, the SSBs in the third set of SSBs have the same Q value, wherein,

q SSB _ index mod P or Q slot _ number mod P;

Optionally, the SSBs in the third set of SSBs have the same Q value, wherein,

q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P);

Optionally, the processing module 82 is further configured to merge and decode SSBs in the third S-SSB set.

Optionally, the merging and decoding the SSBs in the third SSB set includes:

It should be noted that the apparatus in this embodiment is an apparatus corresponding to the method shown in fig. 4, and the implementation manners in the above embodiments are all applicable to the embodiment of the apparatus, and the same technical effects can be achieved. The apparatus may further include a processing module 82 and the like, for processing the information transmitted by the transceiver module 81. It should be noted that, the apparatus provided in the embodiment of the present invention can implement all the method steps implemented by the method embodiment and achieve the same technical effect, and detailed descriptions of the same parts and beneficial effects as the method embodiment in this embodiment are omitted here.

Embodiments of the present invention further provide a processor-readable storage medium, which stores processor-executable instructions for causing the processor to execute the method of fig. 1 or fig. 4, where all the implementations in the above method embodiments are applicable to this embodiment, and the same technical effect can be achieved.

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

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

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

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

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

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

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

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. A method for sending quasi-co-location information is applied to a sending side terminal, and the method comprises the following steps:

2. The method according to claim 1, wherein the first information is a number N of SSBs included in a first SSB set in a synchronization period, and transmission beam directions of the SSBs in the first SSB set are different from each other.

3. The method of claim 2, wherein when a system configures multiple sets of synchronization resources, SSBs in the first set of SSBs belong to a same set of synchronization resources.

4. The method according to claim 1, wherein the first information is a number M of SSBs included in a second SSB set in one synchronization period, and transmission beam directions of the SSBs in the second SSB set are the same.

5. The method of claim 4, wherein when a system configures multiple sets of synchronization resources, SSBs in the second set of SSBs belong to a same set of synchronization resources.

6. The method according to claim 3 or 5, wherein the system configures a plurality of synchronization resource sets, and comprises: the system configures two synchronous resource sets for the terminal, or the system configures three synchronous resource sets for the terminal.

7. The method of claim 6, wherein when the system configures two sets of synchronization resources for the terminal, the terminal uses one of the two sets of synchronization resources to send the SSB, and the terminal uses the other of the two sets of synchronization resources to receive the SSB.

8. The method of claim 6, wherein when the system configures three sets of synchronization resources for the terminal, the terminal sends a synchronization signal block SSB using a first set of synchronization resources of the three sets of synchronization resources, the terminal receives the synchronization signal block SSB using a second set of synchronization resources of the three sets of synchronization resources, and the terminal sends the synchronization signal block SSB using a third set of synchronization resources of the three sets of synchronization resources when directly synchronizing with the GNSS.

9. The method for sending quasi-co-location information according to claim 1, further comprising:

10. The method of claim 9, wherein SSBs in the third set of SSBs have the same Q value, and wherein,

q SSB _ index mod P or Q slot _ number mod P;

11. The method of claim 9, wherein SSBs in the third set of SSBs have the same Q value, and wherein,

q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P);

12. The method of claim 9, wherein when a system configures multiple sets of synchronization resources, SSBs in the third set of SSBs belong to a same set of synchronization resources.

13. The method of claim 1, wherein the quasi co-location information between the SSBs is related to at least one of a frequency band in which the SSBs are located, a subcarrier spacing (SCS) used by the SSBs, and a number of SSBs included in a synchronization period of a system configuration.

14. The method for transmitting quasi-co-location information according to claim 13,

for the operating frequency band FR1, all SSBs within a synchronization period are quasi co-located;

15. The method for transmitting quasi-co-location information according to claim 1,

all SSBs belonging to the same synchronous resource set and sent in a synchronous period are quasi co-located; or,

16. The method of claim 1, wherein the PBCH is a direct link physical broadcast channel (PSBCH), and the SSB is a direct link synchronization signal block (S-SSB).

17. A method for receiving quasi-co-location information is applied to a receiving side terminal, and the method comprises the following steps:

18. The method of claim 17, wherein the first information is a number N of SSBs included in a first SSB set in a synchronization period, and transmission beam directions of the SSBs in the first SSB set are different from each other.

19. The method of claim 18, wherein when a system configures multiple sets of synchronization resources, the SSBs in the first set of SSBs belong to a same set of synchronization resources.

20. The method of claim 17, wherein the first information is a number M of SSBs included in a second SSB set in one synchronization period, and transmission beams of the SSBs in the second SSB set are in the same direction.

21. The method of claim 20, wherein when a system configures multiple sets of synchronization resources, SSBs in the second set of SSBs belong to the same set of synchronization resources.

22. The method for receiving quasi co-location information according to claim 19 or 21, wherein the system configures a plurality of synchronous resource sets including: the system configures two synchronous resource sets for the terminal, or the system configures three synchronous resource sets for the terminal.

23. The method of claim 22, wherein the system configures two sets of synchronization resources for the terminal, and the terminal uses one of the two sets of synchronization resources to transmit the SSB and uses the other set of synchronization resources to receive the SSB.

24. The method of claim 22, wherein the system configures three sets of synchronization resources for the terminal, the terminal uses a first set of synchronization resources to transmit the synchronization signal block SSB, the terminal uses a second set of synchronization resources to receive the synchronization signal block SSB, and the terminal uses a third set of synchronization resources to transmit the synchronization signal block SSB when directly synchronizing with the GNSS.

25. The method for receiving quasi-co-location information according to claim 17, further comprising:

26. The method of receiving quasi co-location information of claim 25, wherein SSBs in the third set of SSBs have the same Q value, wherein,

q SSB _ index mod P or Q slot _ number mod P;

27. The method of receiving quasi co-location information of claim 25, wherein SSBs in the third set of SSBs have the same Q value, wherein,

q ═ f (SSB _ index/P) or Q ═ f (slot _ number/P);

28. The method of claim 25, wherein when a system configures multiple sets of synchronization resources, the SSBs in the third set of SSBs belong to the same set of synchronization resources.

29. The method for receiving quasi-co-location information as claimed in claim 25, further comprising:

and merging and decoding the SSBs in the third set of S-SSBs.

30. The method of claim 29, wherein the combining and decoding SSBs in the third SSB set comprises:

31. The method of claim 17, wherein the quasi co-location information between the SSBs is related to at least one of a frequency band in which the SSBs are located, a subcarrier spacing SCS used by the SSBs, and a number of SSBs included in a synchronization period of a system configuration.

32. The method of receiving quasi co-location information of claim 31,

33. The method of receiving quasi co-location information of claim 17,

all SSBs belonging to the same synchronization resource set received in a synchronization period are quasi co-located; or,

34. The method of claim 17, wherein the PBCH refers to a direct link physical broadcast channel (PSBCH) and the SSB refers to a direct link synchronization signal block (S-SSB).

35. A terminal, comprising: the transceiver, the processor, the memorizer, store the procedure that the said processor can carry out on the said memorizer; the processor implements, when executing the program: sending a first Synchronization Signal Block (SSB), wherein the first SSB is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH.

36. The terminal of claim 35, wherein the first information is a number N of SSBs included in a first SSB set in a synchronization period, and transmission beam directions of the SSBs in the first SSB set are different from each other.

37. The terminal of claim 36, wherein when the system configures multiple sets of synchronization resources, the SSBs in the first set of SSBs belong to a same set of synchronization resources.

38. The terminal of claim 35, wherein the first information is a number M of SSBs included in a second set of SSBs in a synchronization period, and transmission beams of the SSBs in the second set of SSBs have the same direction.

39. The terminal of claim 38, wherein when the system configures multiple sets of synchronization resources, the SSBs in the second set of SSBs belong to the same set of synchronization resources.

40. An apparatus for transmitting quasi-co-located information, the apparatus being applied to a terminal, the apparatus comprising:

41. A terminal, comprising: the transceiver, the processor, the memorizer, store the procedure that the said processor can carry out on the said memorizer; the processor implements, when executing the program: receiving a first Synchronization Signal Block (SSB), wherein the first SSB is configured or carries first information in a first mode, and the first information indicates quasi co-location information among a plurality of SSBs; the first SSB comprises a Physical Broadcast Channel (PBCH), and the first mode refers to at least one mode of a pre-configuration mode, a mode carried by a PBCH load and a mode carried by a demodulation pilot reference signal (DMRS) corresponding to the PBCH.

42. The terminal of claim 41, wherein the first information is the number N of SSBs contained in a first set of SSBs in a synchronization period, and the transmission beam directions of the SSBs in the first set of SSBs are different from each other.

43. The terminal of claim 42, wherein when the system configures multiple sets of synchronization resources, SSBs in the first set of SSBs belong to a same set of synchronization resources.

44. The terminal of claim 41, wherein the first information is a number M of SSBs included in a second set of SSBs in a synchronization period, and transmission beams of the SSBs in the second set of SSBs are in the same direction.

45. The terminal of claim 44, wherein when the system configures multiple sets of synchronization resources, SSBs in the second set of SSBs belong to a same set of synchronization resources.

46. An apparatus for receiving quasi co-located information, the apparatus being applied to a terminal, the apparatus comprising: the device comprises a transceiver module, configured to receive a first synchronization signal block SSB, where the first SSB configures or carries first information in a first manner, and the first information indicates quasi co-location information among multiple SSBs.

47. A processor-readable storage medium having stored thereon processor-executable instructions for causing a processor to perform the method of any of claims 1 to 16 or the method of any of claims 17 to 34.