Transmission method and apparatus for SFN used in wireless communication

Abstract

This application discloses a method and apparatus for transmitting a Private Number (SFN) for wireless communication. A communication node receives first broadcast information on a first broadcast channel of a first cell. The first broadcast information includes a MIB message and a first bit group. The first bit group includes the least significant (X1) bits of the SFN, where X1 is a positive integer. The MIB message includes the most significant (X2) bits of the SFN, where X2 is a positive integer. The candidates for X1 include multiple positive integers. The SFN is composed of the X1 bits and the X2 bits. The method proposed in this application flexibly indicates the SFN, which is beneficial for supporting different scenarios.

Description

Technical Field

[0001] This application relates to transmission methods and apparatus in wireless communication systems, and more particularly to transmission methods and apparatus for SFN (Short-Stop Network). Background Technology

[0002] In the NR (New Radio) system, the MIB (Master Information Block) message is mainly used to provide the basic parameters required for decoding the SIB1 (System Information Block 1) message. The MIB message is transmitted through the BCH (Broadcast Channel) and broadcast on the PBCH (Physical Broadcast Channel). The MIB message is always transmitted on the BCH with an 80ms change period and repeats within 80ms. Since the PBCH (Physical Broadcast Channel) payload includes the 4 bits of the least significant bit (LSB) of the SFN (System Frame Number), the 6 bits of the most significant bit (MSB) of the SFN will change once after 160ms.

[0003] The ITU (International Telecommunication Union) proposed the requirements and use cases for 6G (6th Generation Mobile Communication Technology) in its recommendation "Framework and overall objectives of the future development of IMT for 2030 and beyond". In addition, 3GPP has also begun to study 6G use cases. In TR 22.870, typical 6G use cases were proposed, including end-to-end energy efficiency improvement for the network and UE, AI (Artificial Intelligence), ISAC (Integrated Sensing and Communication), Ubiquitous Connectivity, Immersive Communication, and Massive Communication. Summary of the Invention

[0004] The inventors discovered through research that since the number of bits in the least significant bit and the most significant bit of the SFN included in the PBCH payload are fixed, and the change cycle of the MIB message is not flexible enough, it is not conducive to the diverse scenarios of future 6G. Therefore, it is necessary to enhance the SFN.

[0005] To address the above problems, this application provides a solution.

[0006] As an example, the interpretation of terms in this application is based on the definitions in the 3GPP specification protocol TS38 series.

[0007] It should be noted that, unless otherwise specified, the embodiments and features in any node of this application can be applied to any other node. Furthermore, unless otherwise specified, the embodiments and features in any embodiment of this application can be arbitrarily combined with each other.

[0008] This application discloses a method used in a first node for wireless communication, characterized by comprising:

[0009] A first broadcast message is received on a first broadcast channel of a first cell, wherein the first broadcast message includes a MIB message and a first bit group, the first bit group included in the first broadcast message indicates the least significant X1 bits of the SFN, where X1 is a positive integer, and the MIB message included in the first broadcast message indicates the most significant X2 bits of the SFN, where X2 is a positive integer.

[0010] The candidate X1 includes multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits.

[0011] Considering that an excessively long change cycle for MIB messages would hinder MIB message updates, while an excessively short change cycle would impede UE reception of MIB messages, the above method utilizes the X1 bits of the least significant SFN indicated by the first bit group included in the first broadcast information. The X1 bits can be a candidate of multiple positive integers. By flexibly adjusting the number of the least significant bits of the SFN indicated by the first bit group included in the first broadcast information, this method helps balance MIB message updates and UE reception of MIB messages, thereby improving system performance.

[0012] According to one aspect of this application, the X2 is fixed.

[0013] In the above method, since the candidates for X1 include multiple positive integers and X2 is fixed, the number of bits of SFN can be flexibly adjusted to achieve a variable range of SFN, which is beneficial to support different scenarios and needs. For example, a longer SFN can support a longer paging or DRX cycle, improving power saving efficiency, while a shorter SFN is beneficial to reduce the overhead of SFN in broadcast information.

[0014] According to one aspect of this application, the sum of X1 and X2 is 10.

[0015] In the above method, since the candidates for X1 include multiple positive integers and the sum of X1 and X2 is 10, the introduction of a new SFN cycle is avoided, thereby improving compatibility and protocol design complexity.

[0016] According to one aspect of this application, the X1 depends on the type of the first cell; wherein the type of the first cell is one of a plurality of candidate types, the plurality of candidate types respectively correspond to the plurality of positive integers, and the plurality of candidate types belong to the same RAT (Radio Access Technology).

[0017] Determining X1 is a technical problem that needs to be solved; in the above method, X1 depends on the type of the first cell, which is beneficial to optimize X1 according to different cell types.

[0018] According to one aspect of this application, the first broadcast information includes a second bit group, wherein X1 depends on the second bit group included in the first broadcast information, and any bit in the second bit group included in the first broadcast information is not a bit in the first bit group included in the first broadcast information.

[0019] Determining X1 is a technical problem that needs to be solved. In the above method, X1 depends on the second bit group, which is simple to implement and facilitates the first node in determining X1.

[0020] According to one aspect of this application, the first bit group included in the first broadcast information is X3 bits, the maximum value of the candidate X1 is X3, and X3 is a positive integer.

[0021] Considering that an excessively large number of X1s would increase the unnecessary load on the broadcast channel, the above method solves this problem by limiting the maximum value of the candidates for X1, which helps to reduce the load on the broadcast channel.

[0022] According to one aspect of this application, when X1 is less than X3, at least one bit in the first bit group included in the first broadcast information indicates the type of the first cell.

[0023] The above method is conducive to making full use of the first broadcast information and providing more broadcast information.

[0024] According to one aspect of this application, the change period of the MIB message included in the first broadcast information corresponds to X1.

[0025] This application discloses a method used in a second node for wireless communication, characterized by comprising:

[0026] A first broadcast message is transmitted on the first broadcast channel of the first cell, wherein the first broadcast message includes a MIB message and a first bit group, the first bit group included in the first broadcast message indicates the least significant X1 bits of the SFN, where X1 is a positive integer, and the MIB message included in the first broadcast message indicates the most significant X2 bits of the SFN, where X2 is a positive integer.

[0027] The candidate X1 includes multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits.

[0028] According to one aspect of this application, the X2 is fixed.

[0029] According to one aspect of this application, the sum of X1 and X2 is 10.

[0030] According to one aspect of this application, the X1 depends on the type of the first cell; wherein the type of the first cell is one of a plurality of candidate types, the plurality of candidate types respectively corresponding to the plurality of positive integers, and the plurality of candidate types belonging to the same RAT.

[0031] According to one aspect of this application, the first broadcast information includes a second bit group, wherein X1 depends on the second bit group included in the first broadcast information, and any bit in the second bit group included in the first broadcast information is not a bit in the first bit group included in the first broadcast information.

[0032] According to one aspect of this application, the first bit group included in the first broadcast information is X3 bits, the maximum value of the candidate X1 is X3, and X3 is a positive integer.

[0033] According to one aspect of this application, when X1 is less than X3, at least one bit in the first bit group included in the first broadcast information indicates the type of the first cell.

[0034] According to one aspect of this application, the change period of the MIB message included in the first broadcast information corresponds to X1.

[0035] This application discloses a first node used for wireless communication, characterized in that it includes:

[0036] A first receiver receives first broadcast information on a first broadcast channel of a first cell, wherein the first broadcast information includes a MIB message and a first bit group, the first bit group included in the first broadcast information indicates the least significant X1 bits of the SFN, where X1 is a positive integer, and the MIB message included in the first broadcast information indicates the most significant X2 bits of the SFN, where X2 is a positive integer.

[0037] The candidate X1 includes multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits.

[0038] This application discloses a second node used for wireless communication, characterized by comprising:

[0039] A first transmitter transmits first broadcast information on a first broadcast channel of a first cell, wherein the first broadcast information includes a MIB message and a first bit group, the first bit group included in the first broadcast information indicates the least significant X1 bits of the SFN, where X1 is a positive integer, and the MIB message included in the first broadcast information indicates the most significant X2 bits of the SFN, where X2 is a positive integer.

[0040] The candidate X1 includes multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits. Attached Figure Description

[0041] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0042] Figure 1 A flowchart of a first node according to an embodiment of this application is shown;

[0043] Figure 2 A schematic diagram of a network architecture according to an embodiment of this application is shown;

[0044] Figure 3 A schematic diagram of an embodiment of a wireless protocol architecture for the user plane and control plane according to an embodiment of this application is shown;

[0045] Figure 4 A schematic diagram of a first communication device and a second communication device according to an embodiment of this application is shown;

[0046] Figure 5 A flowchart illustrating a wireless signal transmission process according to an embodiment of this application is shown;

[0047] Figure 6 A schematic diagram showing an embodiment of the SFN according to this application, consisting of X1 bits and X2 bits, is illustrated.

[0048] Figure 7 A schematic diagram is shown of a first bit group included in a first broadcast message according to an embodiment of this application;

[0049] Figure 8 A schematic diagram is shown of a first bit group and a second bit group included in a first broadcast message according to an embodiment of this application;

[0050] Figure 9 A schematic diagram illustrating X1 depending on the type of the first cell according to one embodiment of this application is shown;

[0051] Figure 10A schematic diagram is shown showing the change period of the MIB message included in the first broadcast information according to an embodiment of this application, corresponding to X1;

[0052] Figure 11 A structural block diagram of a processing apparatus for a first node according to an embodiment of this application is shown;

[0053] Figure 12 A structural block diagram of a processing apparatus for a second node according to an embodiment of this application is shown. Detailed Implementation

[0054] The technical solution of this application will be further described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be arbitrarily combined with each other.

[0055] Example 1

[0056] Example 1 illustrates a flowchart of a first node according to an embodiment of this application, as shown in the attached diagram. Figure 1 As shown.

[0057] In Embodiment 1, in step 101, the first node in this application receives first broadcast information on the first broadcast channel of the first cell. The first broadcast information includes a MIB message and a first bit group. The first bit group included in the first broadcast information indicates the least significant X1 bits of the SFN, where X1 is a positive integer. The MIB message included in the first broadcast information indicates the most significant X2 bits of the SFN, where X2 is a positive integer. The candidates for X1 include multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits.

[0058] As an example, the operating frequency band of the first cell is different from both 4G (4th Generation Mobile Communication Technology) and 5G (5th Generation Mobile Communication Technology).

[0059] As an example, the first cell is neither LTE (Long Term Evolution) nor NR.

[0060] As an example, the first cell operates in the 6G frequency band.

[0061] As an example, the first cell supports 6G.

[0062] As an example, the first broadcast channel is a physical layer channel.

[0063] As one example, the first broadcast channel includes the PBCH.

[0064] As an example, the first broadcast channel is PBCH.

[0065] As an example, the first broadcast information is the PBCH payload.

[0066] As an example, the first broadcast information is a PBCH transport block.

[0067] As an example, the MIB message included in the first broadcast information is generated in the RRC (Radio Resource Control) sublayer.

[0068] As an example, the MIB message included in the first broadcast information is an RRC message.

[0069] As an example, the MIB message included in the first broadcast information is transmitted via BCCH (Broadcast Control Channel).

[0070] As an example, the MIB message included in the first broadcast information is transmitted via BCH.

[0071] As an example, the MIB message included in the first broadcast information indicates the scheduling information of the SIB1 message.

[0072] As an example, the MIB message included in the first broadcast information indicates the time-frequency resources of the PDCCH (Physical downlink control channel) that schedules the SIB1 message.

[0073] As an example, the MIB message included in the first broadcast information indicates configuration information for a wakeup signal (WUS) for a SIB1 message.

[0074] As an example, the MIB message included in the first broadcast information indicates at least one of the time-frequency resources of the PDCCH that schedules the SIB1 message or the configuration information for the wake-up signal of the SIB1 message.

[0075] As an example, the wake-up signal is used to request the SIB1 message.

[0076] As an example, the wake-up signal indicates whether the SIB1 message has been sent.

[0077] As an example, the number of bits included in the first bit group of the first broadcast information does not exceed X1.

[0078] As an example, the number of bits included in the first bit group of the first broadcast information is X1.

[0079] As an example, the number of bits included in the first bit group of the first broadcast information is greater than X1.

[0080] As an example, the first bit group included in the first broadcast information is generated at the physical layer.

[0081] As an example, the first bit group included in the first broadcast information is not in the MIB message encoding.

[0082] As one embodiment, the first bit group included in the first broadcast information is transmitted on the first broadcast channel as part of the channel coding.

[0083] As an example, the first bit group included in the first broadcast information includes the X1 bits of the least significant bit of the SFN.

[0084] As an example, the first bit group included in the first broadcast information is the X1 bits of the least significant bit of the SFN.

[0085] As an example, the first bit group included in the first broadcast information is set to the X1 bits of the least significant bit of the SFN.

[0086] As an example, the MIB message included in the first broadcast information includes a first field indicating the X2 bits of the most significant bit of the SFN.

[0087] As a sub-implementation, the first field includes the X2 bits of the most significant bit of the SFN.

[0088] As a sub-implementation, the first field is the X2 bits of the highest bit of the SFN.

[0089] As a sub-implementation, the value of the first field is the X2 bits of the most significant bit of the SFN.

[0090] As a sub-implementation, the value of the first field is equal to the value of the X2 bits of the most significant bit of the SFN.

[0091] As a sub-implementation, the first field is a systemFrameNumber field.

[0092] As a sub-implementation, the name of the first field includes systemFrameNumber.

[0093] As an example, the MIB message included in the first broadcast information is set to the X2 bits of the most significant bit of the SFN.

[0094] As an example, the plurality of positive integers is two positive integers. This method minimizes the degrees of freedom of X1 and is easy to implement.

[0095] As an example, the plurality of positive integers is greater than two positive integers. This method increases the degree of freedom of X1, making it more flexible.

[0096] As an example, the plurality of positive integers is three positive integers.

[0097] As an example, the plurality of positive integers is four positive integers.

[0098] As an example, the plurality of positive integers includes at least one of 2, 3, or 4.

[0099] As an example, X1 depends on The It is the number of candidate SS in a half-frame; where, if the X1 is the first positive integer, where X1 is the first positive integer. X1 is the second positive integer; the first value and the second value are different.

[0100] As a sub-example, the first value is 4, and the second value is greater than 4.

[0101] As a sub-example, the first value is greater than 4, and the second value is greater than 4.

[0102] As a sub-implementation, the Determined based on the SSB pattern.

[0103] As a sub-example, the number of candidate SSs in a half-frame is the number of candidate SSBs in a half-frame.

[0104] As a sub-implementation, the Determined based on the relationship between the SS pattern and the PBCH mapping.

[0105] As one example, X1 depends on the type of the first cell.

[0106] As one embodiment, the first broadcast information includes a second bit group, and X1 depends on the second bit group included in the first broadcast information.

[0107] As an example, the SFN is represented in binary.

[0108] As an example, the SFN is not less than 0 and not greater than (2). X1+X2 -1).

[0109] As an example, X2 is fixed.

[0110] As an example, the sum of X1 and X2 is fixed.

[0111] Example 2

[0112] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of this application, as shown in the attached diagram. Figure 2 As shown. (Attached) Figure 2The network architecture 200 is described. The network architecture 200 is a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system, or a 5G+ network architecture, or a 6G network architecture, or a future evolution network architecture of 3GPP; the network architecture 200 may be referred to as 5GS (5G System) / EPS (Evolved Packet System), or 6GS (6G System); the network architecture 200 includes at least one of UE (User Equipment) 201, RAN (Radio Access Network) 202, core network 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. The network architecture 200 can interconnect with other access networks, but these entities / interfaces are not shown for simplicity. As shown, the network architecture 200 provides packet-switched services; however, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The RAN includes node 203 and other nodes 204. Node 203 provides user and control plane protocol termination toward UE 201. Node 203 can be connected to other nodes 204 via an Xn interface (e.g., backhaul) / X2 interface. Node 203 may also be referred to as a base station, base transceiver station (BTS), radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), CU (Centralized Unit), DU (Distributed Unit), TRP (Transmitter Receiver Node), or some other suitable term. Instances of node 203 include NodeB (NB), gNB, eNB, ng-eNB, en-gNB, IAB network devices (e.g., IAB-node, IAB-donor, IAB-donor-CU, or IAB-donor-DU), testing devices, and signaling testers. Instances of node 203 may also include relay devices (e.g., L3 relay, L2 relay, or L1 relay), routers, switches, and gateway devices.The core network 210 is a 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is a 6GC; node 203 provides UE 201 with an access point to the core network 210. Examples of UE 201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptops, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband IoT devices, IoT terminals, industrial IoT devices, machine-type communication devices, land vehicles, automobiles, ships, wearable devices (e.g., watches, rings, glasses, VR / XR devices), handsets, in-vehicle terminals, IAB terminal equipment (e.g., IAB-MT), test equipment, signaling testers, or any other similar functional devices. Those skilled in the art may also refer to UE201 as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, radio terminal, remote terminal, handheld device, user agent, mobile client, client, or any other suitable term. Node 203 is connected to the core network 210 via the S1 / NG interface. The core network 210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMF 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF 211 is the control node that handles signaling between UE201 and the core network 210. In general, the MME / AMF / SMF211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF212, which itself is connected to the P-GW / UPF213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF213 connects to Internet service 230.Internet services 230 include operator-compliant Internet protocol services, which may specifically include the Internet, intranets, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0113] As an example, the UE201 corresponds to the first node in this application.

[0114] As an example, the first node in this application includes the UE201.

[0115] As an example, the UE201 is a user equipment (UE).

[0116] As an example, the UE201 is a relay device.

[0117] As an example, the UE201 is a gateway device.

[0118] As an example, the UE201 supports 6G.

[0119] As an example, the UE201 operates in the 6G frequency band.

[0120] As an example, node 203 corresponds to the second node in this application.

[0121] As an example, the second node in this application includes node 203.

[0122] As one example, node 203 is a base station device.

[0123] As one example, node 203 is a relay device.

[0124] As one example, node 203 is a gateway device.

[0125] As one example, node 203 supports 6G.

[0126] Typically, UE201 is a user equipment and node203 is a base station device.

[0127] Typically, UE201 is a base station device, and node203 is a base station device.

[0128] Example 3

[0129] Example 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture for a user plane and a control plane according to this application, as shown in the attached diagram. Figure 3 As shown. Figure 3 This is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3 The radio protocol architecture for control plane 300 is illustrated using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (Physical Layer) signal processing functions. L1 layer will be referred to as PHY301 in this document. Layer 2 (L2 layer) 305 sits above PHY301 and includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. It also provides security through encrypted data packets and supports cross-area mobility. The RLC sublayer 303 provides segmentation and reassembly of upper-layer packets, retransmission of lost packets, and packet reordering to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat Request). MAC sublayer 302 provides multiplexing between the logical and transport channels. MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell. MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for acquiring radio resources (i.e., radio bearers) and using RRC signaling to configure the lower layers. The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for Physical Layer 351, PDCP sublayer 354 in L2 Layer 355, RLC sublayer 353 in L2 Layer 355, and MAC sublayer 352 in L2 Layer 355. However, PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol) sublayer 356. The SDAP sublayer 356 is responsible for the mapping between QoS streams and data radio bearers (DRBs) to support service diversity.

[0130] As an example, Appendix Figure 3The wireless protocol architecture described herein is applicable to the first node in this application.

[0131] As an example, Appendix Figure 3 The wireless protocol architecture described herein is applicable to the second node in this application.

[0132] As an example, at least a portion of the first broadcast information in this application is generated in the RRC306.

[0133] As an example, at least a portion of the first broadcast information in this application is generated by the MAC302 or MAC352.

[0134] As an example, at least a portion of the first broadcast information in this application is generated in the PHY301 or PHY351.

[0135] As an example, the first broadcast channel in this application is generated in the PHY301 or PHY351.

[0136] As an example, the MIB message in this application is generated in the RRC306.

[0137] As an example, the first bit group in this application is generated in the PHY301 or PHY351.

[0138] Example 4

[0139] Example 4 shows schematic diagrams of a first communication device and a second communication device according to this application, as shown in the appendix. Figure 4 As shown. Figure 4 This is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in the access network.

[0140] The first communication device 450 includes a controller / processor 459, a memory 460, a data source 467, a transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0141] The second communication device 410 includes a controller / processor 475, a memory 476, a receiver processor 470, a transmitter processor 416, a multi-antenna receiver processor 472, a multi-antenna transmitter processor 471, a transmitter / receiver 418, and an antenna 420.

[0142] In the transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper-layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer functionality. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmitting lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). Transmit processor 416 performs encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and mapping of signal clusters based on various modulation schemes (e.g., Binary Phase Shift Keying (BPSK), Quadrature Phase Shift Keying (QPSK), M-Phase Shift Keying (M-PSK), M-QAM). Multi-antenna transmit processor 471 performs digital spatial precoding on the encoded and modulated symbols, including codebook-based and non-codebook-based precoding, and beamforming processing, generating one or more spatial streams. Transmit processor 416 then maps each spatial stream to subcarriers, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domains, and subsequently uses inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. Multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multicarrier symbol stream provided by the multi-antenna transmitter processor 471 into an radio frequency stream, which is then provided to different antennas 420.

[0143] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal through its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier and converts the radio frequency stream into a baseband multicarrier symbol stream, which is then provided to the receiver processor 456. The receiver processor 456 and the multi-antenna receiver processor 458 implement various signal processing functions of the L1 layer. The multi-antenna receiver processor 458 performs receive analog precoding / beamforming operations on the baseband multicarrier symbol stream from the receiver 454. The receiver processor 456 uses a Fast Fourier Transform (FFT) to convert the baseband multicarrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiver processor 456, where the reference signal is used for channel estimation, and the data signal is recovered in the multi-antenna receiver processor 458 after multi-antenna detection to recover any spatial stream destined for the first communication device 450. Symbols on each spatial stream are demodulated and recovered in the receive processor 456, generating soft decisions. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper-layer data and control signals transmitted by the second communication device 410 over the physical channel. The upper-layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of Layer 2. The controller / processor 459 may be associated with a memory 460 storing program code and data. The memory 460 may be referred to as computer-readable media. In the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 provides multiplexing, packet reassembly, decryption, header decompression, and control signal processing between the transport and logical channels to recover upper-layer data packets from the core network. The upper-layer data packets are then provided to all protocol layers above Layer 2. Various control signals may also be provided to Layer 3 for Layer 3 processing.

[0144] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide upper-layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functions at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. Transmit processor 468 performs modulation mapping and channel coding processing, while multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming processing. Subsequently, transmit processor 468 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding / beamforming operations in multi-antenna transmit processor 457, the stream is provided to different antennas 452 via transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by multi-antenna transmit processor 457 into a radio frequency symbol stream before providing it to antenna 452.

[0145] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function at the first communication device 450 described in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency signals into baseband signals, and provides the baseband signals to the multi-antenna receiving processor 472 and the receiving processor 470. The receiving processor 470 and the multi-antenna receiving processor 472 jointly implement the L1 layer functions. The controller / processor 475 implements the L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as computer-readable media. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides multiplexing between the transmission and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper-layer data packets from the UE 450. Upper-layer packets from the controller / processor 475 can be provided to the core network.

[0146] As one embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor, and the first communication device 450 at least: receives first broadcast information on a first broadcast channel of a first cell, wherein the first broadcast information includes a MIB message and a first bit group, the first bit group included in the first broadcast information indicating the least significant X1 bits of an SFN, where X1 is a positive integer, the MIB message included in the first broadcast information indicating the most significant X2 bits of the SFN, where X2 is a positive integer; wherein the candidates for X1 include a plurality of positive integers, and the SFN is composed of the X1 bits and the X2 bits.

[0147] As one embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating an action when executed by at least one processor, the action including: receiving first broadcast information on a first broadcast channel of a first cell, wherein the first broadcast information includes a MIB message and a first bit group, the first bit group included in the first broadcast information indicating the least significant X1 bits of an SFN, where X1 is a positive integer, the MIB message included in the first broadcast information indicating the most significant X2 bits of the SFN, where X2 is a positive integer; wherein the candidates for X1 include a plurality of positive integers, and the SFN is composed of the X1 bits and the X2 bits.

[0148] As one embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 410 at least: transmits first broadcast information on a first broadcast channel of a first cell, wherein the first broadcast information includes a MIB message and a first bit group, the first bit group including the first broadcast information indicating the least significant X1 bits of an SFN, where X1 is a positive integer, and the MIB message including the first broadcast information indicating the most significant X2 bits of the SFN, where X2 is a positive integer; wherein the candidates for X1 include a plurality of positive integers, and the SFN is composed of the X1 bits and the X2 bits.

[0149] As one embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program, which, when executed by at least one processor, generates an action including: transmitting first broadcast information on a first broadcast channel of a first cell, wherein the first broadcast information includes a MIB message and a first bit group, the first bit group including the first broadcast information indicating the least significant X1 bits of an SFN, where X1 is a positive integer, and the MIB message including the first broadcast information indicating the most significant X2 bits of the SFN, where X2 is a positive integer; wherein the candidates for X1 include a plurality of positive integers, and the SFN is composed of the X1 bits and the X2 bits.

[0150] As one embodiment, at least one of the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 is used to receive the first broadcast information.

[0151] As an example, at least one of the antenna 420, the transmitter 418, the transmission processor 416, and the controller / processor 475 is used to transmit the first broadcast information.

[0152] As one embodiment, at least one of the antenna 452, the transmitter 454, the transmission processor 468, and the controller / processor 459 is used to transmit the first broadcast channel.

[0153] As one embodiment, at least one of the antenna 420, the receiver 418, the receiving processor 470, and the controller / processor 475 is used to receive the first broadcast channel.

[0154] As an example, the first communication device 450 corresponds to the first node in this application.

[0155] As an example, the first node in this application includes the first communication device 450.

[0156] As an example, the second communication device 410 corresponds to the second node in this application.

[0157] As an example, the second node in this application includes the second communication device 410.

[0158] As an example, the first communication device 450 is a user equipment.

[0159] As an example, the first communication device 450 is a base station device.

[0160] As an example, the first communication device 450 is a relay device.

[0161] As one embodiment, the second communication device 410 is a user equipment.

[0162] As one embodiment, the second communication device 410 is a base station device.

[0163] As one embodiment, the second communication device 410 is a relay device.

[0164] Example 5

[0165] Example 5 illustrates a wireless signal transmission flowchart according to an embodiment of this application, as shown in the attached diagram. Figure 5 As shown.

[0166] for First node U01 ,

[0167] In step S5101, first broadcast information is received on the first broadcast channel of the first cell. The first broadcast information includes a MIB message and a first bit group. The first bit group included in the first broadcast information indicates the least significant X1 bits of the SFN, where X1 is a positive integer. The MIB message included in the first broadcast information indicates the most significant X2 bits of the SFN, where X2 is a positive integer. The candidates for X1 include multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits.

[0168] In step S5102, second broadcast information is received on the first broadcast channel of the first cell. The second broadcast information includes a MIB message and a first bit group. The first bit group indicates the least significant (X3) bits of the SFN, where X3 is a positive integer. The MIB message indicates the most significant (X4) bits of the SFN, where X4 is a positive integer. The candidates for X3 include multiple positive integers. The SFN is composed of the X3 bits and the X4 bits. X1 and X3 are not equal.

[0169] In step S5103, second broadcast information is received on the first broadcast channel of the second cell. The second broadcast information includes a MIB message and a first bit group. The first bit group included in the second broadcast information indicates the least significant X3 bits of the SFN, where X3 is a positive integer. The MIB message included in the second broadcast information indicates the most significant X4 bits of the SFN, where X4 is a positive integer. The candidates for X3 include multiple positive integers. The SFN is composed of the X3 bits and the X4 bits. X1 and X3 are not equal.

[0170] for Second node N02 ,

[0171] In step S5201, first broadcast information is sent on the first broadcast channel of the first cell;

[0172] In step S5202, a second broadcast message is sent on the first broadcast channel of the first cell.

[0173] for Third node N03 ,

[0174] In step S5301, a second broadcast message is sent on the first broadcast channel of the second cell.

[0175] As one example, the second node N02 is the sustaining base station of the first cell.

[0176] As an example, the second node N02 supports 6G.

[0177] As one example, the second node N02 is a 6G base station.

[0178] As an example, the dashed box F5.1 is optional.

[0179] As an example, the dashed box F5.1 does not exist.

[0180] As an example, the dashed box F5.1 is present.

[0181] As a sub-implementation, this scheme adjusts the size of the first bit group for the same cell, which is beneficial for switching between different needs.

[0182] As a sub-example, step S5102 is performed before step S5101.

[0183] As a sub-example, step S5102 is performed after step S5101.

[0184] As an example, the dashed box F5.2 is optional.

[0185] As an example, the dashed box F5.2 does not exist.

[0186] As an example, the dashed box F5.2 is present.

[0187] As a sub-implementation, this scheme adjusts the size of the first bit group for different cells, which helps to support the needs of different cells.

[0188] As a sub-example, step S5103 is performed before step S5101.

[0189] As a sub-example, step S5103 is performed after step S5101.

[0190] As a sub-example, the third node N03 is the sustaining base station of the second cell.

[0191] As a sub-example, the third node N03 is the second node N02.

[0192] As a sub-example, the third node N03 is not the second node N02.

[0193] As a sub-example, the third node N03 supports 6G.

[0194] As a sub-example, the third node N03 is a 6G base station.

[0195] As a sub-example, the type of the first cell is a first candidate type, and the type of the first cell is a second candidate type.

[0196] As a sub-example, the first candidate type and the second candidate type are described with reference to Example 7, and will not be repeated here.

[0197] As an example, the first node U01 determines the downlink timing based on the SFN.

[0198] As an example, the first node U01 determines the uplink timing based on the SFN.

[0199] As an example, the MIB message included in the second broadcast information indicates the time and frequency resources of the PDCCH (Physical downlink control channel) that schedules the SIB1 message.

[0200] As an example, the MIB message included in the second broadcast information indicates configuration information for a wakeup signal (WUS) for a SIB1 message.

[0201] As an example, the MIB message included in the second broadcast information indicates at least one of the time-frequency resources of the PDCCH that schedules the SIB1 message or the configuration information for the wake-up signal of the SIB1 message.

[0202] As an example, the number of bits included in the first bit group of the second broadcast information does not exceed X3.

[0203] As an example, the number of bits included in the first bit group of the second broadcast information is X3.

[0204] As an example, the number of bits included in the first bit group of the second broadcast information is greater than X3.

[0205] As one embodiment, the first bit group included in the second broadcast information is generated at the physical layer.

[0206] As an example, the first bit group included in the second broadcast information is not in the MIB message encoding.

[0207] Example 6

[0208] Example 6 illustrates a schematic diagram of an SFN according to an embodiment of this application, consisting of X1 bits and X2 bits. In the appendix... Figure 6 In the diagram, each solid box represents one bit.

[0209] In Embodiment 6, the first broadcast information received on the first broadcast channel of the first cell includes a MIB message and a first bit group. The first bit group included in the first broadcast information indicates the least significant X1 bits of the SFN, where X1 is a positive integer. The MIB message included in the first broadcast information indicates the most significant X2 bits of the SFN, where X2 is a positive integer. The candidates for X1 include multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits.

[0210] As an example, X2 is fixed.

[0211] As a sub-implementation, the fact that X2 is fixed means that X2 remains unchanged.

[0212] As a sub-implementation, the fact that X2 is fixed means that X2 does not change with the change of X1.

[0213] As a sub-implementation, the MIB message includes a first field indicating the X2 bits of the most significant bit of the SFN; wherein the first field occupies X2 bits.

[0214] As a sub-example, X2 is 6.

[0215] As a sub-example, X2 is 8.

[0216] As a sub-implementation, one candidate for the sum of X1 and X2 is greater than 10. This method supports longer SFNs to support longer paging or DRX cycles, improving power efficiency.

[0217] As a sub-example, one candidate for the sum of X1 and X2 is 11.

[0218] As a sub-implementation, the sum of X1 and X2 in any candidate is no greater than 10. This method is beneficial for compatibility.

[0219] As a sub-implementation, the candidates for the sum of X1 and X2 include at least 10.

[0220] As a sub-example, the candidates for the sum of X1 and X2 include 9 and 10.

[0221] As a sub-example, the candidates for the sum of X1 and X2 include 8, 9, and 10.

[0222] As a sub-example, if the X1 bits are 110, the X2 bits are 1101110, and the SFN is 1101101110; wherein, X1 is 3 and X2 is 7.

[0223] As a sub-example, if the X1 bits are 11, the X2 bits are 0110111, and the SFN is 110110111; wherein, X1 is 2 and X2 is 7.

[0224] Typically, the first bit group included in the first broadcast information is not in the MIB message encoding; X2 is fixed.

[0225] As an example, the sum of X1 and X2 is fixed.

[0226] As a sub-example, the sum of X1 and X2 is 11.

[0227] As a sub-example, the sum of X1 and X2 is 10.

[0228] As a sub-example, the MIB message includes a first field indicating the X2 bits of the most significant bit of the SFN.

[0229] As a sub-implementation, X2 is equal to (10 - X1).

[0230] As a sub-example, X1 is 4 and X2 is 6, or X1 is 3 and X2 is 7.

[0231] As a sub-example, X1 is 4 and X2 is 6, or X1 is 2 and X2 is 8.

[0232] As a sub-example, if the X1 bits are 110, the X2 bits are 1101110, and the SFN is 1101101110; wherein, X1 is 3 and X2 is 7.

[0233] As a sub-example, if the X1 bits are 11, the X2 bits are 01101110, and the SFN is 1101101110; wherein, X1 is 2 and X2 is 8.

[0234] Typically, the first bit group included in the first broadcast information is not in the MIB message encoding; the sum of X1 and X2 is fixed.

[0235] Example 7

[0236] Example 7 illustrates a schematic diagram of a first bit group included in a first broadcast message according to an embodiment of this application, as shown in the attached diagram. Figure 7 As shown. In the appendix Figure 7 In the diagram, each solid box represents one bit.

[0237] In Embodiment 7, the first bit group included in the first broadcast information is X3 bits, the maximum value of the candidate X1 is X3, and X3 is a positive integer.

[0238] As an example, the maximum value of the candidate X3 is fixed.

[0239] As an example, the maximum value of the candidate X3 is variable.

[0240] As an example, the candidate maximum value of X3 is predefined. This scheme is simple to implement.

[0241] As an example, the maximum value of the candidate X3 depends on the reception parameters of the first broadcast channel.

[0242] As an example, the maximum value of the candidate X3 is 4.

[0243] As an example, the maximum value of the candidate X3 is 5.

[0244] As an example, the minimum candidate value of X1 is X4, where X4 is a positive integer and is less than X3. This method ensures that the change cycle of MIB messages is not too short.

[0245] As an example, the maximum value of the candidate X3 is 4, and the minimum value of the candidate X3 is 2.

[0246] As an example, the maximum value of the candidate X3 is 3, and the minimum value of the candidate X3 is 2.

[0247] As an example, the maximum value of the candidate X3 is 5, and the minimum value of the candidate X3 is 4.

[0248] As an example, when X1 equals X3, the first bit group included in the first broadcast information is the least significant bit of the SFN, namely the X1 bits.

[0249] As an example, when X1 is less than X3, at least one bit in the first bit group included in the first broadcast information indicates the type of the first cell.

[0250] As a sub-implementation, if at least one bit in the first bit group included in the first broadcast information is a first candidate value, the type of the first cell is a first candidate type; if at least one bit in the first bit group included in the first broadcast information is a second candidate value, the type of the first cell is a second candidate type; wherein, the first candidate value and the second candidate value are different.

[0251] As a sub-example, the first candidate type includes TN (Terrestrial Network), and the second candidate type includes NTN (Non-Terrestrial Network).

[0252] As a sub-example, the first candidate type includes NES (Network Energy Savings), while the second candidate type does not include NES.

[0253] As a sub-example, the first candidate type includes ISAC, while the second candidate type does not include ISAC.

[0254] As a sub-example, the first candidate type includes AI, while the second candidate type does not include AI.

[0255] As a sub-example, the first candidate type includes a 6G use case, and the second candidate type includes another 6G use case, wherein the one 6G use case and the other 6G use case are different.

[0256] As a sub-example, the first candidate type includes a slice, and the second candidate type includes another slice, which are different from each other, and both slices support 6G.

[0257] As a sub-implementation, in response to the receipt of the first broadcast information, whether the first node performs cell reselection depends on whether the first node supports the type of the first cell; if the first node does not support the type of the first cell, the first node performs cell reselection; if the first node supports the type of the first cell, the first node obtains the SIB1 message of the first cell.

[0258] As an example, when X1 is less than X3, a field in the MIB message included in the first broadcast information depends on at least one bit in the first bit group included in the first broadcast information. This scheme is beneficial for the reception of SIB1.

[0259] As a sub-example, the interpretation of a field in the MIB message included in the first broadcast information depends on at least one bit in the first bit group included in the first broadcast information.

[0260] As a sub-example, the value of the field in the MIB message included in the first broadcast information depends on at least one bit in the first bit group included in the first broadcast information.

[0261] As a sub-example, the field in the MIB message included in the first broadcast information indicates the WUS configuration for the SIB1 message.

[0262] As a sub-example, the field in the MIB message included in the first broadcast information indicates the scheduling configuration of the SIB1 message.

[0263] As a sub-implementation, the field indicator k in the MIB message included in the first broadcast information SSB .

[0264] As an example, when X1 is less than X3, at least one bit in the first bit group included in the first broadcast information is reserved. This scheme is beneficial for protocol extension.

[0265] As an example, at least one bit in the first bit group included in the first broadcast information is a portion of the bits other than the X1 bits in the first bit group included in the first broadcast information.

[0266] As an example, the at least one bit in the first bit group included in the first broadcast information is all bits other than the X1 bits in the first bit group included in the first broadcast information.

[0267] As an example, the at least one bit in the first bit group included in the first broadcast information is one bit other than the X1 bits in the first bit group included in the first broadcast information.

[0268] As an example, the at least one bit in the first bit group included in the first broadcast information is two bits other than the X1 bits in the first bit group included in the first broadcast information.

[0269] As an example, the X3 bits are consecutive, and the X1 bits of the least significant bit of the SFN are consecutive.

[0270] As an example, this example does not limit the positions of the X1 bits and the (X3-X1) bits in the first bit group.

[0271] Typically, the first bit group included in the first broadcast information is X3 bits; the first bit group included in the first broadcast information is not in the MIB message encoding.

[0272] Example 8

[0273] Example 8 illustrates a schematic diagram of a first bit group and a second bit group included in a first broadcast message according to an embodiment of this application, as shown in the attached diagram. Figure 8 As shown. In the appendix Figure 8 In the diagram, each solid box represents one bit.

[0274] In embodiment 8, the first broadcast information includes a second bit group, and X1 depends on the second bit group included in the first broadcast information. Any bit in the second bit group included in the first broadcast information is not a bit in the first bit group included in the first broadcast information.

[0275] As an example, the first broadcast information includes at least one bit between the first bit group and the second bit group.

[0276] As an example, the first bit group and the second bit group included in the first broadcast information do not include any bit.

[0277] As an example, the second bit group included in the first broadcast information is 1 bit.

[0278] As one embodiment, the second bit group included in the first broadcast information is a plurality of bits.

[0279] As an example, the second bit group included in the first broadcast information is 2 bits.

[0280] As an example, the second bit group included in the first broadcast information is 4 bits.

[0281] As an example, the second bit group included in the first broadcast information is used to determine the X1.

[0282] As an example, the second bit group included in the first broadcast information indicates X1.

[0283] As a sub-implementation, the second bit group included in the first broadcast information explicitly indicates X1.

[0284] As a sub-implementation, the second bit group included in the first broadcast information implicitly indicates X1.

[0285] As an example, the candidate values ​​of the second bit group included in the first broadcast information correspond to the plurality of positive integers.

[0286] As an example, the plurality of candidate values ​​of the second bit group included in the first broadcast information includes a first candidate value and a second candidate value, and the plurality of positive integers includes a first positive integer and a second positive integer; wherein, if the second bit group included in the first broadcast information is the first candidate value, X1 is the first positive integer, and if the second bit group included in the first broadcast information is the second candidate value, X1 is the second positive integer.

[0287] As an example, the second bit group included in the first broadcast information indicates the type of the first cell; wherein, if the type of the first cell is a first candidate type, X1 is the first positive integer, and if the type of the first cell is a second candidate type, X1 is the second positive integer.

[0288] As an example, the second bit group included in the first broadcast information indicates the state of the first cell; wherein, if the type of the first cell is a first candidate state, X1 is the first positive integer, and if the type of the first cell is a second candidate state, X1 is the second positive integer; the first candidate state and the second candidate state are different.

[0289] As one example, the first candidate state includes NES, while the second candidate state does not include NES.

[0290] As one embodiment, the first candidate state includes deactivation, while the second candidate state does not include deactivation.

[0291] As one embodiment, the first candidate state includes sleep, while the second candidate state does not include sleep.

[0292] As one embodiment, the second bit group included in the first broadcast information is at least one bit in the MIB message included in the first broadcast information. This scheme reduces the overhead of the first bit group.

[0293] As a sub-example, the second bit group included in the first broadcast information is a field in the MIB message included in the first broadcast information.

[0294] As a sub-example, the second bit group included in the first broadcast information is a plurality of fields in the MIB message included in the first broadcast information.

[0295] As one embodiment, the second bit group included in the first broadcast information is not encoded in the MIB message included in the first broadcast information. This scheme avoids interpreting the MIB message included in the first broadcast information.

[0296] As a sub-example, neither the first bit group nor the second bit group included in the first broadcast information is in the MIB message encoding.

[0297] As a sub-implementation, the second bit group included in the first broadcast information is generated at the physical layer.

[0298] As a sub-example, the second bit group included in the first broadcast information is transmitted on the first broadcast channel as part of the channel coding.

[0299] As one embodiment, the first bit group included in the first broadcast information precedes the second bit group included in the first broadcast information.

[0300] As one embodiment, the first bit group included in the first broadcast information follows the second bit group included in the first broadcast information.

[0301] Example 9

[0302] Example 9 illustrates a schematic diagram of X1 depending on the type of the first cell according to an embodiment of this application, as shown in the attached diagram. Figure 9 As shown.

[0303] In embodiment 9, X1 depends on the type of the first cell; wherein the type of the first cell is one of a plurality of candidate types, the plurality of candidate types correspond to the plurality of positive integers respectively, and the plurality of candidate types belong to the same RAT.

[0304] As an example, the type of the first cell depends on the reception parameters of the first broadcast channel.

[0305] As an example, the reception parameters of the first broadcast channel are used to determine the type of the first cell.

[0306] As an example, the reception parameters of the first broadcast channel indicate the type of the first cell.

[0307] As an example, the receiving parameters of the first broadcast channel include the carrier frequency of the first broadcast channel.

[0308] As an example, if the carrier frequency of the first broadcast channel is a first carrier frequency, the type of the first cell is the first candidate type; if the carrier frequency of the first broadcast channel is a second carrier frequency, the type of the first cell is the second candidate type; wherein the first carrier frequency and the second carrier frequency are different.

[0309] As an example, the receiving parameters of the first broadcast channel include the operating frequency band of the first broadcast channel.

[0310] As an example, if the carrier frequency of the first broadcast channel is a first operating frequency band, the type of the first cell is the first candidate type; if the carrier frequency of the first broadcast channel is a second operating frequency band, the type of the first cell is the second candidate type; wherein the first operating frequency band and the second operating frequency band are different.

[0311] As an example, the first operating frequency band is FR1, and the second operating frequency band is FR2.

[0312] As an example, the first operating frequency band is FR3, and the second operating frequency band is FR4.

[0313] As an example, the reception parameters of the first broadcast channel include the spatial reception parameters of the first broadcast channel.

[0314] As an example, the type of the first cell includes the reception parameters of the first broadcast channel.

[0315] As an example, at least one bit in the first bit group included in the first broadcast information indicates the type of the first cell.

[0316] As an example, the plurality of candidate types include a first candidate type and a second candidate type, and the plurality of positive integers include a first positive integer and a second positive integer. The first candidate type corresponds to the first positive integer, and the second candidate type corresponds to the second positive integer. Wherein, if the type of the first cell is the first candidate type, X1 is the first positive integer, and if the type of the first cell is the second candidate type, X1 is the second positive integer.

[0317] As an example, the first candidate type and the second candidate type are described in Example 7, and will not be repeated here.

[0318] Example 10

[0319] Example 10 illustrates a schematic diagram showing the change period of the MIB message included in the first broadcast information according to an embodiment of this application corresponding to X1, as shown in the attached diagram. Figure 10 As shown. In the appendix Figure 10 In the diagram, diagonally filled boxes and dotted boxes represent PBCH transport blocks. Each subframe contains one PBCH transport block, and each subframe is 10ms long. Different diagonally filled boxes carry the same MIB message, while dotted boxes carry different MIB messages. Multiple diagonally filled boxes belong to the same MIB message change period.

[0320] In Embodiment 10, the change period of the MIB message included in the first broadcast information corresponds to X1.

[0321] As an example, the MIB message included in the first broadcast information is repeated within the change period.

[0322] As an example, within the change period of the MIB message included in the first broadcast information, the MIB message carried by the PBCH transport block is the same.

[0323] As an example, during the change period of the MIB message included in the first broadcast information, the second node repeatedly sends the MIB message.

[0324] As one embodiment, the change period of the MIB message included in the first broadcast information, corresponding to X1, includes: the change period of the MIB message included in the first broadcast information is 2. X1 ms.

[0325] As an example, when X1 is 2, the change period of the MIB message included in the first broadcast information is 40ms; when X1 is 3, the change period of the MIB message included in the first broadcast information is 80ms.

[0326] As one embodiment, the change period of the MIB message included in the first broadcast information, corresponding to X1, includes: the change period of the MIB message included in the first broadcast information is not greater than 2. X1 ms.

[0327] As one embodiment, the change period of the MIB message included in the first broadcast information corresponding to X1 includes: the change period of the MIB message included in the first broadcast information is greater than 2. X1-1 ms and not greater than 2 X1 ms.

[0328] As an example, the change period of the MIB message included in the first broadcast information corresponds to X1, which includes: X1 being used to determine the change period of the MIB included in the first broadcast information.

[0329] As a sub-implementation, the first receiver determines the change period of the MIB message included in the first broadcast information based on X1. This method facilitates the first node in performing merged decoding based on multiple PBCH transport blocks within the change period of the MIB message included in the first broadcast information.

[0330] Example 11

[0331] Example 11 illustrates a structural block diagram of a processing apparatus for a first node according to an embodiment of this application; as shown in the appendix. Figure 11 As shown. In the appendix Figure 11 In the first node, the processing device 1100 includes a first receiver 1101.

[0332] The first receiver 1101 receives first broadcast information on the first broadcast channel of the first cell, wherein the first broadcast information includes a MIB message and a first bit group, the first bit group included in the first broadcast information indicates the least significant X1 bits of the SFN, where X1 is a positive integer, and the MIB message included in the first broadcast information indicates the most significant X2 bits of the SFN, where X2 is a positive integer.

[0333] In Example 11, the candidates for X1 include multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits.

[0334] As an example, X2 is fixed.

[0335] As an example, the sum of X1 and X2 is 10.

[0336] As an example, X1 depends on the type of the first cell; wherein the type of the first cell is one of a plurality of candidate types, the plurality of candidate types correspond to the plurality of positive integers respectively, and the plurality of candidate types belong to the same RAT.

[0337] As one embodiment, the first broadcast information includes a second bit group, and X1 depends on the second bit group included in the first broadcast information, wherein any bit in the second bit group included in the first broadcast information is not a bit in the first bit group included in the first broadcast information.

[0338] As an example, the first bit group included in the first broadcast information is X3 bits, the maximum value of the candidate X1 is X3, and X3 is a positive integer.

[0339] As an example, when X1 is less than X3, at least one bit in the first bit group included in the first broadcast information indicates the type of the first cell.

[0340] As an example, the change period of the MIB message included in the first broadcast information corresponds to X1.

[0341] As one embodiment, the first receiver 1101 includes the appendix to this application. Figure 4 The antenna 452, receiver 454, multi-antenna receiver processor 458, receiver processor 456, controller / processor 459, memory 460, or data source 467 are at least one of these.

[0342] As one embodiment, the first receiver 1101 includes the appendix to this application. Figure 4 At least antenna 452 and receiver 454 are included.

[0343] As an example, the first node supports 6G.

[0344] Example 12

[0345] Example 12 illustrates a structural block diagram of a processing apparatus for a second node according to an embodiment of this application; as shown in the appendix. Figure 12 As shown. In the appendix Figure 12 In the second node, the processing device 1200 includes a first transmitter 1201.

[0346] The first transmitter 1201 transmits first broadcast information on the first broadcast channel of the first cell. The first broadcast information includes a MIB message and a first bit group. The first bit group included in the first broadcast information indicates the least significant X1 bits of the SFN, where X1 is a positive integer. The MIB message included in the first broadcast information indicates the most significant X2 bits of the SFN, where X2 is a positive integer.

[0347] In Example 12, the candidates for X1 include multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits.

[0348] As an example, X2 is fixed.

[0349] As an example, the sum of X1 and X2 is 10.

[0350] As an example, X1 depends on the type of the first cell; wherein the type of the first cell is one of a plurality of candidate types, the plurality of candidate types correspond to the plurality of positive integers respectively, and the plurality of candidate types belong to the same RAT.

[0351] As one embodiment, the first broadcast information includes a second bit group, and X1 depends on the second bit group included in the first broadcast information, wherein any bit in the second bit group included in the first broadcast information is not a bit in the first bit group included in the first broadcast information.

[0352] As an example, the first bit group included in the first broadcast information is X3 bits, the maximum value of the candidate X1 is X3, and X3 is a positive integer.

[0353] As an example, when X1 is less than X3, at least one bit in the first bit group included in the first broadcast information indicates the type of the first cell.

[0354] As an example, the change period of the MIB message included in the first broadcast information corresponds to X1.

[0355] As one embodiment, the first transmitter 1201 includes the appendix to this application. Figure 4 The antenna 420, transmitter 418, multi-antenna transmitter processor 471, transmitter processor 416, controller / processor 475, or memory 476 are at least one of them.

[0356] As one embodiment, the first transmitter 1201 includes the appendix to this application. Figure 4 At least antenna 420 and transmitter 418 are included.

[0357] As one example, the second node supports 6G.

[0358] In one embodiment, the second node is a 6G base station.

[0359] Those skilled in the art will understand that all or part of the steps in the above methods can be implemented by a program instructing related hardware, and the program can be stored in a computer-readable storage medium, such as a read-only memory, hard disk, or optical disk. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiments can be implemented in hardware or in the form of software functional modules. This application is not limited to any specific combination of software and hardware. The user equipment, terminal, and UE in this application include, but are not limited to, drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablets, laptops, vehicle-mounted communication devices, wireless sensors, internet cards, IoT terminals, RFID terminals, NB-IoT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablets, and other wireless communication devices. The base station or system equipment in this application includes, but is not limited to, macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR Node B), TRP (Transmitter Receiver Point), and other wireless communication equipment.

[0360] The above description is merely a preferred embodiment of this application and is not intended to limit the scope of protection of this application. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A first node used for wireless communication, characterized in that, include: A first receiver receives first broadcast information on a first broadcast channel of a first cell, wherein the first broadcast information includes a MIB message and a first bit group, the first bit group included in the first broadcast information indicates the least significant X1 bits of the SFN, where X1 is a positive integer, and the MIB message included in the first broadcast information indicates the most significant X2 bits of the SFN, where X2 is a positive integer. The candidate X1 includes multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits.

2. The first node according to claim 1, characterized in that, X2 is fixed, or the sum of X1 and X2 is 10.

3. The first node according to claim 1 or 2, characterized in that, The first broadcast information includes a second bit group, and X1 depends on the second bit group included in the first broadcast information, wherein any bit in the second bit group included in the first broadcast information is not a bit in the first bit group included in the first broadcast information.

4. The first node according to any one of claims 1 to 3, characterized in that, The first bit group included in the first broadcast information is X3 bits, and the maximum value of the candidate X1 is X3, where X3 is a positive integer.

5. The first node according to claim 4, characterized in that, When X1 is less than X3, at least one bit in the first bit group included in the first broadcast information indicates the type of the first cell.

6. The first node according to any one of claims 1 to 4, characterized in that, X1 depends on the type of the first cell; wherein the type of the first cell is one of a plurality of candidate types, the plurality of candidate types correspond to the plurality of positive integers respectively, and the plurality of candidate types belong to the same RAT.

7. The first node according to any one of claims 1 to 6, characterized in that, The change period of the MIB message included in the first broadcast information corresponds to X1.

8. A second node used for wireless communication, characterized in that, include: A first transmitter transmits first broadcast information on a first broadcast channel of a first cell, wherein the first broadcast information includes a MIB message and a first bit group, the first bit group included in the first broadcast information indicates the least significant X1 bits of the SFN, where X1 is a positive integer, and the MIB message included in the first broadcast information indicates the most significant X2 bits of the SFN, where X2 is a positive integer. The candidate X1 includes multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits.

9. A method used in a first node of wireless communication, characterized in that, include: A first broadcast message is received on a first broadcast channel of a first cell, wherein the first broadcast message includes a MIB message and a first bit group, the first bit group included in the first broadcast message indicates the least significant X1 bits of the SFN, where X1 is a positive integer, and the MIB message included in the first broadcast message indicates the most significant X2 bits of the SFN, where X2 is a positive integer. The candidate X1 includes multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits.

10. A method used in a second node of wireless communication, characterized in that, include: A first broadcast message is transmitted on the first broadcast channel of the first cell, wherein the first broadcast message includes a MIB message and a first bit group, the first bit group included in the first broadcast message indicates the least significant X1 bits of the SFN, where X1 is a positive integer, and the MIB message included in the first broadcast message indicates the most significant X2 bits of the SFN, where X2 is a positive integer. The candidate X1 includes multiple positive integers, and the SFN is composed of the X1 bits and the X2 bits.

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