A method for sending and receiving synchronization signals, network equipment and terminal

Abstract

The embodiment of the present invention provides a method for sending and receiving a synchronization signal block, a network device and a terminal. The method for sending a synchronization signal block includes: sending a synchronization signal block according to a first type of identifier and / or a second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate a sending position of the synchronization signal block. The solution of the present invention starts collaborative transmission at the terminal access stage, thereby reducing latency and increasing the rate or reliability of the access process.

Description

Technical Field

[0001] The present invention relates to the field of communication technology, and in particular to a method for sending and receiving a synchronization signal, a network device and a terminal. Background Art

[0002] The distributed ultra-large-scale antenna system in the 6G network presents the remarkable characteristics of more antennas, wider geographical distribution, and deeper intelligent synergy. The distributed ultra-large-scale antenna system consists of a large number of sites distributed in different geographical locations to form a distributed collaborative cluster. The collaborative multi-sites interact with each other to schedule information and collaborate to complete resource scheduling, joint data transmission and other processes. Through intelligent interaction and intelligent collaboration, on the one hand, interference is effectively eliminated and the signal reception quality is enhanced; on the other hand, coverage is effectively enhanced and the user's sense of boundary is eliminated.

[0003] The current distributed system protocol workflow is to measure the quality of adjacent cells or TRPs (transmitting receiving points) after the terminal accesses the network, report the measurement results, and then select the appropriate TRP for cooperative transmission. In actual scenarios, a more static method is adopted, where cooperative base stations / RRUs are selected during deployment, and cooperative transmission is performed directly according to a cell configuration.

[0004] In high-capacity hotspots, high- and low-frequency collaborative deployment can meet the capacity requirements of hotspots as much as possible while ensuring coverage. High-frequency sites have a small coverage area, but can greatly increase the capacity within a small area. Therefore, distributed deployment within a certain range is also a typical requirement and scenario for high-frequency deployment.

[0005] To perform distributed transmission in a high-low frequency collaborative network, the terminal needs to access the primary carrier of the primary cell, measure the quality of the adjacent cell or TRP and report it, then reconfigure the primary cell to add a high-frequency secondary cell, and the terminal first receives SSB (synchronization) on the primary carrier of the secondary cell, completes downlink time synchronization, reads the MIB message, and then performs random access to complete the secondary cell addition and establish an RRC connection. Then, based on the measurement results of the high frequency band, the appropriate TRP is selected for collaborative transmission.

[0006] In existing technologies, if a terminal wants to obtain distributed cooperative transmission, it must first access the network and then conduct cooperative transmission on the service channel. If it is in a high-low frequency cooperative network, this process is even more lengthy, as it must access the low frequency once and the high frequency once before cooperative transmission can begin. Summary of the invention

[0007] The present invention provides a method for sending and receiving a synchronization signal, a network device and a terminal, which can start cooperative transmission at the access stage, thereby reducing the delay and increasing the rate or enhancing the reliability of the access process.

[0008] To solve the above technical problems, the embodiments of the present invention provide the following solutions:

[0009] A method for sending a synchronization signal block, applied to a network device, the method comprising:

[0010] A synchronization signal block is sent according to the first type of identifier and / or the second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate a sending position of the synchronization signal block.

[0011] Optionally, the first category identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block;

[0012] The second type of identifier is a position identifier of M2 collaborative synchronization signal blocks within the transmission period; wherein M1 and M2 are positive integers.

[0013] Optionally, the position identifiers of the M1 non-cooperative synchronization signal blocks are represented by cell identifiers corresponding to the respective synchronization signal blocks;

[0014] The location identifiers of the M2 collaborative synchronization signal blocks are represented by a virtual cell identifier.

[0015] Optionally, the sequence numbers of the M1 non-cooperative synchronization signal blocks are continuous, and the sequence numbers of the M2 cooperative SSBs are continuous;

[0016] The sequence number of the last synchronization signal block of the M1 non-cooperative synchronization signal blocks is continuous with the sequence number of the first synchronization signal block of the M2 cooperative synchronization signal blocks.

[0017] Optionally, sending a synchronization signal block according to the first type of identifier and / or the second type of identifier includes:

[0018] The transmission reception point TRP sends a synchronization signal block at the sending position of the synchronization signal block indicated by the first type identifier; and / or,

[0019] Multiple transmission receiving points TRP send synchronization signal blocks at the sending position of the synchronization signal block represented by the second type of identifier.

[0020] An embodiment of the present invention further provides a method for receiving a synchronization signal block, which is applied to a terminal, and the method includes:

[0021] According to the first type of identifier and / or the second type of identifier, the synchronization signal block is detected at different positions, and the first type of identifier and the second type of identifier are used to indicate the sending position of the synchronization signal block.

[0022] Optionally, the method for receiving a synchronization signal block further includes: when the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier, selecting the synchronization signal block received at the sending position represented by the second type of identifier for cell access.

[0023] Optionally, when the reception quality of the synchronization signal block received at the sending position indicated by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position indicated by the first type of identifier, selecting the synchronization signal block received at the sending position indicated by the second type of identifier for cell access includes:

[0024] When the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier by a preset range, the synchronization signal block received at the sending position represented by the second type of identifier is selected for cell access.

[0025] Optionally, before selecting a synchronization signal block received at a sending position indicated by the second type of identifier for cell access, the method further includes:

[0026] Obtain random access resource information corresponding to the synchronization signal block received at the sending position represented by the second type identifier.

[0027] Optionally, the first category identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block;

[0028] The second type of identifier is a position identifier of M2 collaborative synchronization signal blocks within the transmission period.

[0029] Optionally, the position identifiers of the M1 non-cooperative synchronization signal blocks are represented by cell identifiers corresponding to the respective synchronization signal blocks;

[0030] The location identifiers of the M2 collaborative synchronization signal blocks are represented by a virtual cell identifier.

[0031] Optionally, the sequence numbers of the M1 non-cooperative synchronization signal blocks are continuous, and the sequence numbers of the M2 cooperative synchronization signal blocks are continuous;

[0032] The sequence number of the last synchronization signal block of the M1 non-cooperative synchronization signal blocks is continuous with the sequence number of the first synchronization signal block of the M2 cooperative synchronization signal blocks.

[0033] An embodiment of the present invention further provides a device for sending a synchronization signal block, which is applied to a network device, and the device includes:

[0034] The transceiver module sends a synchronization signal block according to a first type of identifier and a second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate a sending position of the synchronization signal block.

[0035] An embodiment of the present invention further provides a network device, including:

[0036] A transceiver is used to send a synchronization signal block according to a first type of identifier and a second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate a sending position of the synchronization signal block.

[0037] An embodiment of the present invention further provides a device for receiving a synchronization signal block, which is applied to a terminal, and the device includes:

[0038] The transceiver module is used to detect synchronization signal blocks at different positions according to the first type of identifier and the second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate the sending position of the synchronization signal block.

[0039] An embodiment of the present invention further provides a terminal, including:

[0040] A transceiver is used to detect synchronization signal blocks at different positions according to a first type of identifier and a second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate a sending position of the synchronization signal block.

[0041] An embodiment of the present invention further provides a processor-readable storage medium, wherein the processor-readable storage medium stores processor-executable instructions, and the processor-executable instructions are used to enable the processor to execute the method as described above.

[0042] The above solution of the present invention includes at least the following beneficial effects:

[0043] The above scheme of the present invention sends a synchronization signal block according to the first type of identifier and / or the second type of identifier, and the first type of identifier and the second type of identifier are used to indicate the sending position of the synchronization signal block. Collaborative transmission begins in the access stage to reduce latency and increase the rate or reliability of the access process; semi-dynamic flexible clustering is achieved through collaboration between beams; and collaborative transmission in the access process is achieved without increasing the complexity of terminal blind detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 is a schematic diagram of a collaborative synchronization signal block;

[0045] Figure 2 A schematic flow chart of a method for sending a synchronization signal block according to an embodiment of the present invention;

[0046] Figure 3 A schematic diagram of a synchronization signal block sending method in a collaborative system according to an embodiment of the present invention;

[0047] Figure 4 A schematic diagram of a module of a device for sending a synchronization signal block according to an embodiment of the present invention;

[0048] Figure 5 It is a schematic diagram of the architecture of a network device in an embodiment of the present invention. DETAILED DESCRIPTION

[0049] The exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0050] In the design of 4G LTE and 5G NR, the synchronization signal (PSS+SSS) sent by a base station or a TRP corresponds to only one cell ID on one frequency point (sync raster). In 5G NR, due to the introduction of beam operation, each synchronization broadcast signal block (SS / PBCH block, SSB) will also carry an additional SSB index, which can be used to identify the beam.

[0051] In a distributed system, the synchronization signals on a sync raster are divided into two categories through protocol agreement or master node configuration: one is a single-station transmission synchronization signal (non-cooperative SSB), and the other is a cooperative transmission synchronization signal (cooperative SSB).

[0052] like Figure 1 As shown in the figure, at the transmission position of non-cooperative SSB, the SSB sent by each base station / TRP corresponds to the cell ID; multiple base stations / TRPs can send SSB at this position, so these SSBs interfere with each other due to different cell IDs. At the transmission position of cooperative SSB, the base station / TRP sends a synchronization signal according to the cooperative ID. For the base station / TRP that sends SSB using the same cooperative ID, it can be regarded as an SSB sent in SFN mode, and the signal is enhanced; there can also be multiple different cooperative IDs sending SSB at the same position, so there is still an interference relationship between them.

[0053] like Figure 2 As shown, an embodiment of the present invention provides a method for sending a synchronization signal block, which is applied to a network device, and the method includes:

[0054] Step 21, sending a synchronization signal block according to the first type of identifier and / or the second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate the sending position of the synchronization signal block.

[0055] This embodiment of the present invention transmits a synchronization signal block according to a first type of identifier and / or a second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate the transmission position of the synchronization signal block. Collaborative transmission is started in the access phase to reduce latency and increase the rate or reliability of the access process; semi-dynamic flexible clustering is achieved through collaboration between beams; and collaborative transmission in the access process is achieved without increasing the complexity of terminal blind detection.

[0056] Here, the first type of identifier and the second type of identifier indicating the sending position of the synchronization signal block can be configured to the terminal; or the protocol may stipulate a correspondence between the position and the first type of identifier and the second type of identifier, and the network side directly sends the synchronization signal block according to the first type of identifier and / or the second type of identifier.

[0057] In an optional embodiment of the present invention, the first category identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block; the second category identifier is a position identifier of M2 cooperative synchronization signal blocks within the transmission period, where M1 and M2 are positive integers.

[0058] In an optional embodiment of the present invention, the position identifiers of the M1 non-cooperative synchronization signal blocks are represented by cell identifiers corresponding to the respective synchronization signal blocks; and the position identifiers of the M2 cooperative synchronization signal blocks are represented by a virtual cell identifier.

[0059] In an optional embodiment of the present invention, the sequence numbers of the M1 non-cooperative synchronization signal blocks are continuous, and the sequence numbers of the M2 cooperative synchronization signal blocks are continuous; the sequence number of the last synchronization signal block of the M1 non-cooperative synchronization signal blocks is continuous with the sequence number of the first synchronization signal block of the M2 cooperative synchronization signal blocks.

[0060] In an optional embodiment of the present invention, step 12 may include:

[0061] The transmission reception point TRP sends a synchronization signal block at the sending position of the synchronization signal block indicated by the first type identifier; and / or,

[0062] Multiple transmission receiving points TRP send synchronization signal blocks at the sending position of the synchronization signal block represented by the second type of identifier.

[0063] like Figure 3As shown, in the above embodiment of the present invention, when sending a synchronization signal block, on a non-cooperative synchronization signal block (such as a synchronization signal block corresponding to the above-mentioned first type of identifier), its synchronization signal sequence corresponds to the cell ID, and on a cooperative synchronization signal block (such as a synchronization signal block corresponding to the above-mentioned second type of identifier), the synchronization signal sequence corresponds to the cooperative ID, which can be considered as a virtual cell ID. The two are completely distinguished in sequence, which can ensure that the terminal can distinguish different synchronization signal blocks for subsequent operations. The time positions of the two synchronization signal blocks can be distinguished by protocol agreement or pre-configuration, so that the terminal uses different ranges of cell IDs for blind search at different positions, and the complexity of the terminal will not be increased. Specifically: by protocol agreement or configuration, there are M synchronization signal block transmission positions in one cycle, of which the first M1 synchronization signal blocks are the positions of the non-cooperative synchronization signal blocks, and the last M2 synchronization signal blocks are the positions of the cooperative synchronization signal blocks. At the first M1 positions, the synchronization signal sequence is defined by the cell ID, and at the last M2 positions, the synchronization signal sequence is defined by the cooperative ID.

[0064] When searching for a cell, the terminal uses the cell ID and the cooperative ID to detect at the non-cooperative synchronization signal block position and the cooperative synchronization signal block position respectively. Considering that the cooperative synchronization signal block transmitted by SFN will increase the receiving energy, when the terminal makes an access criterion determination, it can be considered that if the received RSRP of the cooperative synchronization signal block is higher than that of the non-cooperative synchronization signal block by a certain range, the cooperative synchronization signal block will be selected for access. In this way, by constraining the terminal access criteria on different synchronization signal blocks, the terminal can access the cooperative synchronization signal block, thereby realizing cooperative transmission in the access stage.

[0065] After the terminal completes the measurement of the synchronization signal block, it needs to obtain the random access resource information corresponding to the synchronization signal block. In the system message, the period and time domain position of the PRACH resource corresponding to the current synchronization signal block can be configured. The PRACH resource position is related to the synchronization signal block position. This can realize the collaborative reception of random access resources.

[0066] An embodiment of the present invention further provides a method for receiving a synchronization signal block, which is applied to a terminal, and the method includes:

[0067] According to the first type of identifier and / or the second type of identifier, the synchronization signal block is detected at different positions, and the first type of identifier and the second type of identifier are used to indicate the sending position of the synchronization signal block.

[0068] Optionally, the method for receiving a synchronization signal block further includes: when the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier, selecting the synchronization signal block received at the sending position represented by the second type of identifier for cell access.

[0069] Optionally, when the reception quality of the synchronization signal block received at the sending position indicated by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position indicated by the first type of identifier, selecting the synchronization signal block received at the sending position indicated by the second type of identifier for cell access includes:

[0070] When the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier by a preset range, the synchronization signal block received at the sending position represented by the second type of identifier is selected for cell access.

[0071] Optionally, before selecting a synchronization signal block received at a sending position indicated by the second type of identifier for cell access, the method further includes:

[0072] Obtain random access resource information corresponding to the synchronization signal block received at the sending position represented by the second type identifier.

[0073] Optionally, the first category identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block;

[0074] The second type of identifier is a position identifier of M2 collaborative synchronization signal blocks within the transmission period.

[0075] Optionally, the position identifiers of the M1 non-cooperative synchronization signal blocks are represented by cell identifiers corresponding to the respective synchronization signal blocks;

[0076] The location identifiers of the M2 collaborative synchronization signal blocks are represented by a virtual cell identifier.

[0077] Optionally, the sequence numbers of the M1 non-cooperative synchronization signal blocks are continuous, and the sequence numbers of the M2 cooperative synchronization signal blocks are continuous;

[0078] The sequence number of the last synchronization signal block of the M1 non-cooperative synchronization signal blocks is continuous with the sequence number of the first synchronization signal block of the M2 cooperative synchronization signal blocks.

[0079] In this embodiment of the present invention, Figure 3As shown, when the terminal searches for a cell, it uses the cell ID and the cooperative ID to detect at the non-cooperative synchronization signal block position and the cooperative synchronization signal block position respectively. Considering that the cooperative synchronization signal block transmitted by SFN will increase the receiving energy, when the terminal makes an access criterion determination, it can be considered that if the received RSRP of the cooperative synchronization signal block is higher than that of the non-cooperative synchronization signal block by a certain range, the cooperative synchronization signal block will be selected for access. The effect is: by constraining the terminal access criteria on different synchronization signal blocks, the terminal can access the cooperative synchronization signal block, thereby realizing cooperative transmission in the access stage.

[0080] After the terminal completes the measurement of the synchronization signal block, it needs to obtain the random access resource information corresponding to the synchronization signal block. In the system message, the period and time domain position of the PRACH resource corresponding to the current synchronization signal block can be configured. The PRACH resource position is related to the synchronization signal block position. The effect is: collaborative reception of random access resources can be achieved.

[0081] In the above-mentioned embodiments of the present invention, the synchronization signal sequence corresponds to the cell ID (first type ID) or corresponds to the collaborative ID (second type ID), or in addition to the cell ID, the collaborative ID can also define the synchronization signal sequence; it can be considered that if the received RSRP of the collaborative SSB (second type synchronization signal) is higher than the non-collaborative SSB (first type synchronization signal) by a certain range, the collaborative SSB will be selected for access. Through protocol agreement or configuration, there are M SSB transmission positions in one cycle, of which M1 SSBs are positions of non-collaborative SSBs, and the other M2 SSBs are positions of collaborative SSBs. At the M1 position, the synchronization signal sequence is defined by the cell ID (first type ID), and at the other M2 positions, the synchronization signal sequence is defined by the collaborative ID (second type ID). The terminal accesses the collaborative SSB, thereby realizing collaborative transmission in the access stage.

[0082] like Figure 4 As shown, an embodiment of the present invention further provides a device 40 for sending a synchronization signal block, which is applied to a network device, and the device 40 includes:

[0083] The transceiver module 41 is used to send a synchronization signal block according to the first type of identifier and / or the second type of identifier, where the first type of identifier and the second type of identifier are used to indicate the sending position of the synchronization signal block.

[0084] Optionally, the first category identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block;

[0085] The second type of identifier is a position identifier of M2 collaborative synchronization signal blocks within the transmission period.

[0086] Optionally, the position identifiers of the M1 non-cooperative synchronization signal blocks are represented by cell identifiers corresponding to the respective synchronization signal blocks;

[0087] The location identifiers of the M2 collaborative synchronization signal blocks are represented by a virtual cell identifier.

[0088] Optionally, the sequence numbers of the M1 non-cooperative synchronization signal blocks are continuous, and the sequence numbers of the M2 cooperative synchronization signal blocks are continuous;

[0089] The sequence number of the last synchronization signal block of the M1 non-cooperative synchronization signal blocks is continuous with the sequence number of the first synchronization signal block of the M2 cooperative synchronization signal blocks.

[0090] Optionally, sending a synchronization signal block according to the first type of identifier and the second type of identifier includes:

[0091] The transmission reception point TRP sends a synchronization signal block at the sending position of the synchronization signal block indicated by the first type identifier; and / or,

[0092] Multiple transmission receiving points TRP send synchronization signal blocks at the sending position of the synchronization signal block represented by the second type of identifier.

[0093] It should be noted that the device is a device corresponding to the above-mentioned network side method. The device may also include a processing module 42 for processing the data sent and received by the above-mentioned transceiver module 41. All implementation methods of the above-mentioned network side method are applicable to the embodiments of the device and can achieve the same technical effect.

[0094] like Figure 5 As shown, an embodiment of the present invention further provides a network device 50, including:

[0095] The transceiver 51 is used to send a synchronization signal block according to the first type of identifier and / or the second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate the sending position of the synchronization signal block.

[0096] Optionally, the first category identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block;

[0097] The second type of identifier is a position identifier of M2 collaborative synchronization signal blocks within the transmission period.

[0098] Optionally, the position identifiers of the M1 non-cooperative synchronization signal blocks are represented by cell identifiers corresponding to the respective synchronization signal blocks;

[0099] The location identifiers of the M2 collaborative synchronization signal blocks are represented by a virtual cell identifier.

[0100] Optionally, the sequence numbers of the M1 non-cooperative synchronization signal blocks are continuous, and the sequence numbers of the M2 cooperative synchronization signal blocks are continuous;

[0101] The sequence number of the last synchronization signal block of the M1 non-cooperative synchronization signal blocks is continuous with the sequence number of the first synchronization signal block of the M2 cooperative synchronization signal blocks.

[0102] Optionally, sending a synchronization signal block according to the first type of identifier and the second type of identifier includes:

[0103] The transmission reception point TRP sends a synchronization signal block at the sending position of the synchronization signal block indicated by the first type identifier; and / or,

[0104] Multiple transmission receiving points TRP send synchronization signal blocks at the sending position of the synchronization signal block represented by the second type of identifier.

[0105] It should be noted that the network device 50 is a network device corresponding to the method on the network device side, and all implementations of the method on the network device side are applicable to the embodiments of the network device, and can also achieve the same technical effect. The network device may further include a processor 52 for processing data received and sent by the transceiver 51, and a memory 53 for storing data processed by the transceiver or processor 52.

[0106] An embodiment of the present invention also provides a receiving device for a synchronization signal block, which is applied to a terminal, and the device includes: a transceiver module, which is used to detect synchronization signal blocks at different positions according to a first type of identifier and / or a second type of identifier, and the first type of identifier and the second type of identifier are used to indicate the sending position of the synchronization signal block.

[0107] Optionally, when the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier, the synchronization signal block received at the sending position represented by the second type of identifier is selected for cell access.

[0108] Optionally, when the reception quality of the synchronization signal block received at the sending position indicated by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position indicated by the first type of identifier, selecting the synchronization signal block received at the sending position indicated by the second type of identifier for cell access includes:

[0109] When the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier by a preset range, the synchronization signal block received at the sending position represented by the second type of identifier is selected for cell access.

[0110] Optionally, before selecting a synchronization signal block received at a sending position indicated by the second type of identifier for cell access, the method further includes:

[0111] Obtain random access resource information corresponding to the synchronization signal block received at the sending position indicated by the second type identifier

[0112] Optionally, the first category identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block;

[0113] The second type of identifier is a position identifier of M2 collaborative synchronization signal blocks within the transmission period.

[0114] Optionally, the position identifiers of the M1 non-cooperative synchronization signal blocks are represented by cell identifiers corresponding to the respective synchronization signal blocks;

[0115] The location identifiers of the M2 collaborative synchronization signal blocks are represented by a virtual cell identifier.

[0116] Optionally, the sequence numbers of the M1 non-cooperative synchronization signal blocks are continuous, and the sequence numbers of the M2 cooperative synchronization signal blocks are continuous;

[0117] The sequence number of the last synchronization signal block of the M1 non-cooperative synchronization signal blocks is continuous with the sequence number of the first synchronization signal block of the M2 cooperative synchronization signal blocks.

[0118] It should be noted that the device is a device corresponding to the above-mentioned terminal side method, and all implementation methods of the above-mentioned terminal side method are applicable to the embodiments of the device and can achieve the same technical effects.

[0119] An embodiment of the present invention further provides a terminal, including:

[0120] Transceiver for

[0121] According to the first type of identifier and / or the second type of identifier, the synchronization signal block is detected at different positions, and the first type of identifier and the second type of identifier are used to indicate the sending position of the synchronization signal block.

[0122] Optionally, when the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier, the synchronization signal block received at the sending position represented by the second type of identifier is selected for cell access.

[0123] Optionally, when the reception quality of the synchronization signal block received at the sending position indicated by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position indicated by the first type of identifier, selecting the synchronization signal block received at the sending position indicated by the second type of identifier for cell access includes:

[0124] When the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier by a preset range, the synchronization signal block received at the sending position represented by the second type of identifier is selected for cell access.

[0125] Optionally, before selecting a synchronization signal block received at a sending position indicated by the second type of identifier for cell access, the method further includes:

[0126] Obtain random access resource information corresponding to the synchronization signal block received at the sending position indicated by the second type identifier

[0127] Optionally, the first category identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block;

[0128] The second type of identifier is a position identifier of M2 collaborative synchronization signal blocks within the transmission period.

[0129] Optionally, the position identifiers of the M1 non-cooperative synchronization signal blocks are represented by cell identifiers corresponding to the respective synchronization signal blocks;

[0130] The location identifiers of the M2 collaborative synchronization signal blocks are represented by a virtual cell identifier.

[0131] Optionally, the sequence numbers of the M1 non-cooperative synchronization signal blocks are continuous, and the sequence numbers of the M2 cooperative synchronization signal blocks are continuous;

[0132] The sequence number of the last synchronization signal block of the M1 non-cooperative synchronization signal blocks is continuous with the sequence number of the first synchronization signal block of the M2 cooperative synchronization signal blocks.

[0133] It should be noted that the terminal is a terminal corresponding to the method on the terminal side, and all implementations of the method on the terminal side are applicable to the embodiments of the terminal, and can also achieve the same technical effect. The terminal may further include a memory for storing data processed by the transceiver or processor.

[0134] The embodiment of the present invention further provides a processor-readable storage medium, wherein the processor-readable storage medium stores processor-executable instructions, wherein the processor-executable instructions are used to cause the processor to execute the method described above. All implementations in the above method embodiment are applicable to this embodiment and can achieve the same technical effect.

[0135] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0136] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0137] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0138] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0139] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0140] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as USB flash drives, mobile hard disks, ROM, RAM, magnetic disks, or optical disks.

[0141] In addition, it should be noted that in the apparatus and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. Moreover, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order, and some steps can be performed in parallel or independently of each other. For those of ordinary skill in the art, it is understood that all or any steps or components of the method and apparatus of the present invention can be implemented in any computing device (including processors, storage media, etc.) or a network of computing devices in hardware, firmware, software or a combination thereof, which can be achieved by those of ordinary skill in the art using their basic programming skills after reading the description of the present invention.

[0142] Therefore, the purpose of the present invention can also be achieved by running a program or a group of programs on any computing device. The computing device can be a well-known general device. Therefore, the purpose of the present invention can also be achieved by simply providing a program product containing a program code that implements the method or device. That is to say, such a program product also constitutes the present invention, and the storage medium storing such a program product also constitutes the present invention. Obviously, the storage medium can be any well-known storage medium or any storage medium developed in the future. It should also be pointed out that in the device and method of the present invention, it is obvious that each component or each step can be decomposed and / or recombined. These decompositions and / or recombinations should be regarded as equivalent schemes of the present invention. In addition, the steps of performing the above-mentioned series of processing can naturally be performed in chronological order according to the order of description, but it is not necessary to perform them in chronological order. Some steps can be performed in parallel or independently of each other.

[0143] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for sending a synchronization signal block, characterized in that: Applied to a network device, the method comprises: Sending a synchronization signal block according to a first type of identifier and / or a second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate a sending position of the synchronization signal block; when the reception quality of the synchronization signal block received by the terminal at the sending position indicated by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position indicated by the first type of identifier, selecting the synchronization signal block received at the sending position indicated by the second type of identifier for cell access; The first type of identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block; The second type of identifier is a position identifier of M2 collaborative synchronization signal blocks within the transmission period, wherein M1 and M2 are positive integers.

2. The method for sending a synchronization signal block according to claim 1, characterized in that: The position identifiers of the M1 non-cooperative synchronization signal blocks are represented by cell identifiers corresponding to the respective synchronization signal blocks; The location identifiers of the M2 collaborative synchronization signal blocks are represented by a virtual cell identifier.

3. The method for sending a synchronization signal block according to claim 1, characterized in that: The sequence numbers of the M1 non-cooperative synchronization signal blocks are continuous, and the sequence numbers of the M2 cooperative SSBs are continuous; The sequence number of the last synchronization signal block of the M1 non-cooperative synchronization signal blocks is continuous with the sequence number of the first synchronization signal block of the M2 cooperative synchronization signal blocks.

4. The method for sending a synchronization signal block according to claim 1, characterized in that: Sending a synchronization signal block according to the first type of identifier and / or the second type of identifier includes: The transmission reception point TRP sends a synchronization signal block at the sending position of the synchronization signal block indicated by the first type identifier; and / or, Multiple transmission receiving points TRP send synchronization signal blocks at the sending position of the synchronization signal block represented by the second type of identifier.

5. A method for receiving a synchronization signal block, characterized in that: Applied to a terminal, the method comprises: Detecting synchronization signal blocks at different positions according to the first type of identifier and / or the second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate a sending position of the synchronization signal block; The first type of identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block; The second type of identifier is a position identifier of M2 coordinated synchronization signal blocks in the transmission period, wherein M1 and M2 are positive integers; Also includes: When the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier, the synchronization signal block received at the sending position represented by the second type of identifier is selected for cell access.

6. The method for receiving a synchronization signal block according to claim 5, characterized in that: When the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier, selecting the synchronization signal block received at the sending position represented by the second type of identifier for cell access, comprising: When the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier by a preset range, the synchronization signal block received at the sending position represented by the second type of identifier is selected for cell access.

7. The method for receiving a synchronization signal block according to claim 6, characterized in that: Before selecting the synchronization signal block received at the sending position indicated by the second type of identifier to access the cell, the method further includes: Obtain random access resource information corresponding to the synchronization signal block received at the sending position represented by the second type identifier.

8. The method for receiving a synchronization signal block according to claim 5, characterized in that: The position identifiers of the M1 non-cooperative synchronization signal blocks are represented by cell identifiers corresponding to the respective synchronization signal blocks; The location identifiers of the M2 collaborative synchronization signal blocks are represented by a virtual cell identifier.

9. The method for receiving a synchronization signal block according to claim 5, characterized in that: The sequence numbers of the M1 non-cooperative synchronization signal blocks are continuous, and the sequence numbers of the M2 cooperative synchronization signal blocks are continuous; The sequence number of the last synchronization signal block of the M1 non-cooperative synchronization signal blocks is continuous with the sequence number of the first synchronization signal block of the M2 cooperative synchronization signal blocks.

10. A device for transmitting a synchronization signal block, characterized in that: Applied to network equipment, the device comprises: a transceiver module, sending a synchronization signal block according to a first type of identifier and a second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate a sending position of the synchronization signal block; so that when the reception quality of the synchronization signal block received by the terminal at the sending position indicated by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position indicated by the first type of identifier, the synchronization signal block received at the sending position indicated by the second type of identifier is selected for cell access; The first type of identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block; The second type of identifier is a position identifier of M2 collaborative synchronization signal blocks within the transmission period, wherein M1 and M2 are positive integers.

11. A network device, characterized in that: include: A transceiver, configured to send a synchronization signal block according to a first type of identifier and a second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate a sending position of the synchronization signal block; so that when the reception quality of the synchronization signal block received by the terminal at the sending position indicated by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position indicated by the first type of identifier, the synchronization signal block received at the sending position indicated by the second type of identifier is selected for cell access; The first type of identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block; The second type of identifier is a position identifier of M2 collaborative synchronization signal blocks within the transmission period, wherein M1 and M2 are positive integers.

12. A receiving device for a synchronization signal block, characterized in that: Applied to a terminal, the device comprises: A transceiver module, configured to detect synchronization signal blocks at different positions according to a first type of identifier and a second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate a sending position of the synchronization signal block; The first type of identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block; The second type of identifier is a position identifier of M2 coordinated synchronization signal blocks in the transmission period, wherein M1 and M2 are positive integers; When the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier, the synchronization signal block received at the sending position represented by the second type of identifier is selected for cell access.

13. A terminal, characterized in that: include: A transceiver, configured to detect synchronization signal blocks at different positions according to a first type of identifier and a second type of identifier, wherein the first type of identifier and the second type of identifier are used to indicate a sending position of the synchronization signal block; The first type of identifier is a position identifier of M1 non-cooperative synchronization signal blocks within a transmission period of a synchronization signal block; The second type of identifier is a position identifier of M2 coordinated synchronization signal blocks in the transmission period, wherein M1 and M2 are positive integers; When the reception quality of the synchronization signal block received at the sending position represented by the second type of identifier is higher than the reception quality of the synchronization signal block received at the sending position represented by the first type of identifier, the synchronization signal block received at the sending position represented by the second type of identifier is selected for cell access.

14. A processor-readable storage medium, characterized in that: The processor-readable storage medium stores processor-executable instructions, and the processor-executable instructions are used to enable the processor to execute the method according to any one of claims 1 to 4 or the method according to any one of claims 5 to 9.

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