Wireless communication devices, methods, and systems for transmitting synchronization signals

Abstract

The present disclosure relates to wireless communications. A transmitting device is configured to generate a plurality of synchronization signals (SSs) based on a plurality of sequences, map the plurality of SSs to a plurality of resource blocks, and transmit one or more of the plurality of SSs to one or more receiving devices using one or more of the plurality of resource blocks. A receiving device can be configured to transmit an indication to the transmitting device. The indication can be indicative of one or more required resource blocks for receiving the one or more SSs, so that the transmitting device can transmit the one or more SSs accordingly. Alternatively, the receiving device can be configured to receive an indication from the transmitting device, where the indication is indicative of one or more resource blocks carrying the one or more SSs. In this way, power consumption can be reduced and inter-cell interference can be mitigated.

Description

Technical Field

[0001] This invention generally relates to the field of communication technology. For example, this invention provides apparatus, methods, and systems for transmitting synchronization signals. Background Technology

[0002] Today, driven by two pressing needs, network energy efficiency is increasingly important: mitigating environmental degradation, particularly greenhouse gas emissions, and reducing operating costs. As a further development of 5G, the emergence of 6th generation (6G) telecommunications technology has brought about a paradigm shift to accommodate more complex services and applications. These developments require extremely high data transmission rates, with extended reality (XR) technologies being typical examples. Therefore, the evolution to 6G and subsequent generations is characterized by increased network density, a larger number of antennas, greater bandwidth, and spectrum expansion.

[0003] While the transition to these advanced telecommunications technologies holds promise in terms of connectivity and quality of service, it also presents significant challenges in terms of environmental sustainability. It is essential to ensure that the environmental footprint of next-generation (6G and beyond) networks remains manageable. Therefore, developing innovative solutions aimed at improving the energy efficiency of these networks is crucial. Summary of the Invention

[0004] A significant portion of network operators' operating costs is attributed to energy consumption. For example, according to GSMA research, energy costs account for approximately 23% of total mobile network operating costs. A substantial portion of this energy expenditure is attributable to the radio access network (RAN), particularly active antenna units (AAUs). While data centers and fiber optic transmission systems also contribute to overall energy consumption, their impact is relatively smaller. Energy consumption in a radio access network can be divided into two distinct components: a dynamic component, which depends on active data transmission and reception; and a static component, which is always present regardless of data transmission activity to keep the radio access equipment operationally ready.

[0005] The synchronization signal (SS) / physical broadcast channel (PBCH) block (or SSB) is the first signal / message that a cellular device detects / decodes in order to connect to a wireless network. In current 5G new radio (NR) networks, the SSB spans four OFDM symbols in the time domain and 240 subcarriers in the frequency domain, such as... Figure 1As shown, Chapter 7.4.3 of 3GPP TS 38.211 V18.1.0 describes the traditional SSB resource mapping.

[0006] However, this traditional SSB design still consumes considerable power to ensure coverage and fast cell access. How to optimize SSB from a power consumption perspective remains an unsolved problem.

[0007] In view of the above-mentioned problems and drawbacks, the present invention aims to optimize the power consumption of wireless communication networks. For example, the goal may be to reduce the power consumption caused by SSB transmission (or synchronization signal transmission) in advanced wireless mobile networks above 5G.

[0008] These and other objectives are achieved by the invention, for example, as described in the independent claims. Advantageous implementations are further described in the dependent claims.

[0009] A first aspect of the present invention provides a wireless communication method applied to a transmitting device. The method includes the following steps: Multiple synchronization signals are generated based on multiple sequences; Map the multiple synchronization signals to multiple resource blocks; One or more of the plurality of resource blocks are used to send one or more of the plurality of synchronization signals to one or more receiving devices.

[0010] The generated multiple synchronization signals can be used as candidate synchronization signals, and the transmitting device can select one or more suitable synchronization signals from these candidate signals for transmission. In this way, power consumption can be reduced and inter-cell interference can be decreased.

[0011] In one implementation of the first aspect, the synchronization signal may include one or more primary synchronization signals (PSS) and / or one or more secondary synchronization signals (SSS).

[0012] In other words, multiple synchronization signals can include: Multiple PSS; or Multiple SSS; or At least one PSS and at least one SSS.

[0013] Each synchronization signal (e.g., each PSS and each SSS) can be detected by the receiving device and can be used for synchronization purposes and / or L1 / L3 measurement purposes and / or cell activation purposes.

[0014] In another implementation of the first aspect, the method for transmitting the one or more synchronization signals may include: Obtain one or more of the following: network condition information, channel condition information, and neighbor cell information; Based on one or more of the acquired network condition information, channel condition information, and neighboring cell information, the one or more synchronization signals are selected for transmission.

[0015] Optionally, when network condition information indicates relatively high power consumption and / or network resource utilization, one or more synchronization signals with shorter sequence lengths may be sent, and / or the number of one or more synchronization signals to be sent may be reduced. When network condition information indicates relatively low power consumption and / or network resource utilization, one or more synchronization signals with longer sequence lengths may be sent, and / or the number of one or more synchronization signals to be sent may be increased.

[0016] Optionally, when the channel condition information indicates that the channel conditions are relatively good, one or more synchronization signals with shorter sequence lengths can be transmitted, and / or the number of one or more synchronization signals to be transmitted can be reduced. When the channel condition information indicates that the channel conditions are relatively poor, one or more synchronization signals with longer sequence lengths can be transmitted, and / or the number of one or more synchronization signals to be transmitted can be increased.

[0017] Optionally, when neighbor cell information indicates that the interference in the neighbor cell is relatively low, one or more synchronization signals with shorter sequence lengths can be sent, and / or the number of one or more synchronization signals to be sent can be reduced. When neighbor cell information indicates that the interference in the neighbor cell is relatively high, one or more synchronization signals with longer sequence lengths can be sent, and / or the number of one or more synchronization signals to be sent can be increased.

[0018] In another implementation of the first aspect, the method for transmitting the one or more synchronization signals may include: Receive an instruction from the receiving device, wherein the instruction is used to indicate: one or more desired sequences, or desired synchronization signal patterns; Based on the indication, one or more synchronization signals are selected for transmission.

[0019] Optionally, one or more desired sequences can be used to construct one or more corresponding synchronization signals. The desired synchronization signal pattern can be used to indicate one or more resource blocks carrying one or more synchronization signals.

[0020] In another implementation of the first aspect, the method may further include: instructing the receiving device one or more sequences, the one or more sequences being used to generate the one or more transmitted synchronization signals.

[0021] In another implementation of the first aspect, the plurality of resource blocks may include overlapping resource blocks.

[0022] In another implementation of the first aspect, the plurality of resource blocks may include non-overlapping resource blocks.

[0023] A second aspect of the present invention provides a wireless communication method applied to a receiving device. The method includes: sending an indication to a transmitting device. The indication is used to indicate one or more desired resource blocks, the one or more desired resource blocks being used to receive one or more synchronization signals. The method further includes: receiving the one or more synchronization signals from the transmitting device using the one or more resource blocks according to the indication.

[0024] A third aspect of the present invention provides a wireless communication method applied to a receiving device. The method includes: receiving an indication from a transmitting device. The indication is used to indicate one or more resource blocks carrying one or more synchronization signals. The method further includes: based on the indication, receiving the one or more synchronization signals from the transmitting device using the one or more resource blocks.

[0025] In one implementation of the second or third aspect, the one or more synchronization signals may include one or more primary synchronization signals (PSS) and / or one or more secondary synchronization signals (SSS).

[0026] In another implementation of the second or third aspect, the method may further include: receiving an indication from the transmitting device, the indication being for indicating one or more sequences, the one or more sequences being for generating the one or more synchronization signals.

[0027] In another implementation of the second or third aspect, when multiple resource blocks are used to receive the one or more synchronization signals, the multiple resource blocks may include overlapping resource blocks.

[0028] In another implementation of the second or third aspect, when multiple resource blocks are used to receive the one or more synchronization signals, the multiple resource blocks may include non-overlapping resource blocks.

[0029] In another implementation of the second or third aspect, in response to receiving two or more synchronization signals using two or more resource blocks, the method may include processing the two or more synchronization signals in a combined manner.

[0030] The fourth aspect provides a transmitting device for wireless communication. The transmitting device is used for: Multiple synchronization signals are generated based on multiple sequences; Map the multiple synchronization signals to multiple resource blocks; One or more of the plurality of resource blocks are used to send one or more of the plurality of synchronization signals to one or more receiving devices.

[0031] In one implementation of the fourth aspect, the synchronization signal may include one or more PSS and / or one or more SSS.

[0032] In another implementation of the fourth aspect, for transmitting the one or more synchronization signals, the transmitting device may be used to: Obtain one or more of the following: network condition information, channel condition information, and neighbor cell information; Based on one or more of the acquired network condition information, channel condition information, and neighboring cell information, the one or more synchronization signals are selected for transmission.

[0033] In another implementation of the fourth aspect, for transmitting the one or more synchronization signals, the transmitting device may be used to: Receive an instruction from the receiving device, wherein the instruction is used to indicate: one or more desired sequences, or desired synchronization signal patterns; Based on the indication, one or more synchronization signals are selected for transmission.

[0034] In another implementation of the fourth aspect, the transmitting device may be used to indicate one or more sequences to the receiving device, the one or more sequences being used to generate the one or more transmission synchronization signals.

[0035] In another implementation of the fourth aspect, the plurality of resource blocks may include overlapping resource blocks.

[0036] In another implementation of the fourth aspect, the plurality of resource blocks may include non-overlapping resource blocks.

[0037] A fifth aspect of the present invention provides a receiving device for wireless communication. The receiving device is used for: Send an instruction to the transmitting device, wherein the instruction is used to indicate one or more required resource blocks, the one or more required resource blocks being used to receive one or more synchronization signals; According to the instructions, the one or more resource blocks are used to receive the one or more synchronization signals from the transmitting device.

[0038] A sixth aspect of the present invention provides a receiving device for wireless communication. The receiving device is used for: Receive an indication from the transmitting device, wherein the indication is used to indicate one or more resource blocks carrying one or more synchronization signals; Based on the instruction, the one or more resource blocks are used to receive the one or more synchronization signals from the transmitting device.

[0039] In one implementation of the fifth or sixth aspect, the one or more synchronization signals may include one or more PSS and / or one or more SSS.

[0040] In another implementation of the fifth or sixth aspect, the receiving device may also be used to receive an indication from the transmitting device, the indication being for indicating one or more sequences for generating the one or more synchronization signals.

[0041] In another implementation of the fifth or sixth aspect, when multiple resource blocks are used to receive the one or more synchronization signals, the multiple resource blocks may include overlapping resource blocks.

[0042] In another implementation of the fifth or sixth aspect, when multiple resource blocks are used to receive the one or more synchronization signals, the multiple resource blocks may include non-overlapping resource blocks.

[0043] In another implementation of the fifth or sixth aspect, in response to receiving two or more synchronization signals using two or more resource blocks, the receiving device may also be used to process the two or more synchronization signals in a combined manner.

[0044] A seventh aspect of the present invention provides a wireless communication system comprising at least one transmitting device according to the fourth aspect and one or more receiving devices according to the fifth or sixth aspect.

[0045] An eighth aspect of the present invention provides a computer program comprising program code for performing the method according to the first aspect or any implementation thereof.

[0046] A ninth aspect of the present invention provides a computer program comprising program code for performing the method described according to the second aspect, the third aspect, or any implementation thereof.

[0047] The tenth aspect of the present invention provides a non-transitory storage medium for storing executable program code, which, when executed by a processor (or chipset), performs the method described according to the first aspect or any implementation thereof.

[0048] The eleventh aspect of the present invention provides a non-transitory storage medium for storing executable program code, which, when executed by a processor (or chipset), performs the method described according to the second aspect, the third aspect, or any implementation thereof.

[0049] It should be noted that all devices, elements, units, and modules described in this application can be implemented in software or hardware elements or any combination thereof. All steps performed by the various entities described in this application, and functions described as being performed by the various entities, are intended to indicate that the respective entities are suitable for or used to perform the respective steps and functions. Although in the following description of the invention, specific functions or steps performed by external entities are not reflected in the detailed description of the specific elements of the entity performing that particular step or function, it should be apparent to those skilled in the art that these methods and functions can be implemented in the corresponding software or hardware elements or any combination thereof. Attached Figure Description

[0050] Referring to the accompanying drawings, the following description will illustrate the above aspects and their implementation methods, wherein: Figure 1 The time-frequency structure of the conventional synchronization signal / PBCH block is shown; Figure 2 An example of a master synchronization signal design is shown; Figure 3 An example of a secondary synchronization signal design is shown; Figure 4 An example of a synchronization signal transmission mode is shown; Figure 5 A diagram illustrating a method applied to a transmitting device is shown; Figure 6 A diagram illustrating a method applied to a receiving device is shown; Figure 7 An illustration shows another method applied to a receiving device; Figure 8 An example of a communication system is shown. Detailed Implementation

[0051] The key terms and their abbreviations used in this invention are listed below: 3GPP (3rd Generation Partnership Project); BCH (Broadcast Channel); BPSK (Binary Phase Shift Keying); BS (Base Station); CRC (Cyclic Redundancy Check); DCI (Downlink Control Information); DL (Downlink); DMRS (Demodulation Reference Signal); gNB (Next Generation Node B or gNode B); LDPC (Low Density Parity Check); NR (New Radio); MAC (Media Access Control); MAC CE (MAC Control Element); MCS (Modulation and Coding Scheme); MIB (Master Information Block); PBCH (Physical Broadcast Channel); PDCCH (Physical Downlink Control Channel); PDSCH (Physical Downlink Shared Channel); PSS (Master Synchronization Signal); PUCCH (Physical Uplink Control Channel); PUSCH (Physical Uplink Shared Channel); RAT (Radio Access Technology); RAN (Radio Access Network); RB (Resource Block); RE (Resource Element); RNTI (Radio Network Temporary Identifier); C-RNTI (Cell RNTI); Paging RNTI (Paging RNTI). P-RNTI; Quad Phase Shift Keying (QPSK); Radio Resource Control (RRC); Subcarrier (SC); Synchronization Signal (SS), Synchronization Signal / PBCH Block (SSB); Secondary Synchronization Signal (SSS); Uplink (UL); User Equipment (UE); Dynamic Spectrum Sharing (DSS); Primary Cell (PCell); Secondary Cell (SCell).

[0052] Cell search is the process by which a UE obtains time-frequency synchronization with a cell and detects the cell's physical layer cell ID (PCI). During cell search operations performed when the UE powers on, mobility in connected mode, mobility in idle mode (e.g., reselection), and mobility to other systems in the NR system, the UE uses synchronization signals to obtain the necessary information for accessing the cell.

[0053] NR defines two synchronization signals: the primary synchronization signal (PSS) and the secondary synchronization signal (SSS). PSS and SSS are broadcast physical layer signals used for initial access (including synchronization, determining the physical cell ID, etc.), L1 / L3 measurements, and / or Scell ​​activation procedures. PBCH is used to send the MIB to the UE. SSB typically includes PSS, SSS, and PBCH. Figure 1 The time-frequency structure of a conventional SSB is shown, which has the following characteristics: PSS, SSS, and PBCH are located together in a consecutive OFDM symbol; Each SSB occupies 4 OFDM symbols in the time domain and spans 240 subcarriers (20 RBs) in the frequency domain. The PSS occupies the first OFDM symbol and spans 127 subcarriers; The SSS is located in the third OFDM symbol and spans 127 subcarriers. Below the SSS are several (e.g., eight) unused subcarriers, and above the SSS are several (e.g., nine) unused subcarriers. PSS and SSS have fixed sequence lengths and fixed RE mappings.

[0054] Figure 2 An example of the master synchronization signal design provided by the present invention is shown.

[0055] According to the present invention, a transmitting device (e.g., a gNB) can generate multiple primary synchronization signals (e.g., PSS 1 and PSS 2) based on multiple sequences. The lengths of the multiple sequences can be different. Each sequence is used to generate a corresponding primary synchronization signal. The lengths of the generated multiple primary synchronization signals can be different. The multiple primary synchronization signals are mapped to multiple resource blocks. The transmitting device is used to transmit one or more of the multiple primary synchronization signals to a receiving device (e.g., a UE).

[0056] For example, if the UE is under good channel conditions, the gNB can send the UE a PSS associated with a relatively short sequence. If the UE is under relatively poor channel conditions, the gNB can send the UE a PSS associated with a relatively long sequence, or it can send two (or more) PSSs to the UE simultaneously. It should be noted that the quality of channel conditions can be determined based on a preset threshold. It should also be noted that other factors such as interference from one or more neighboring cells and network load may also affect which synchronization signal(s)(s) are sent.

[0057] Optionally, the UE can request PSS 1 only, PSS 2 only, or both PSS 1 and PSS 2 based on its own measurements. The UE request can be sent using RRC, MAC CE, or any other configuration message. Alternatively, the gNB can determine whether to send PSS 1 only, PSS 2 only, or both PSS 1 and PSS 2 to one or more UEs based on one or more measurement reports from different UEs and / or information from one or more neighboring cells.

[0058] In this way, unnecessary power consumption can be saved for UEs with good channel conditions. Furthermore, for UEs with poor channel conditions, the synchronization signal detection rate can be improved. Overall, this improves system performance and reduces energy consumption.

[0059] like Figure 2 As shown, multiple PSSs can be mapped to multiple resource blocks for transmission. Typically, M candidate PSS sequences can be generated, and these candidate PSS sequences can be mapped to M blocks, where M is an integer greater than 1. The sequence / block sizes can be equal or unequal.

[0060] exist Figure 2 In the block-based design shown, blocks 211 and 212 do not overlap. For example, if M=2, two candidate PSSs (PSS 1 and PSS 2) are generated. PSS1 and PSS2 are mapped to two blocks. There are three possible transmission options: (1) transmit only PSS 1, (2) transmit only PSS 2, and (3) transmit both PSS 1 and PSS 2. The UE can request possible transmission options. The gNB determines the appropriate transmission based on different UE requests and / or network conditions and / or inter-cell interference. Detection of PSS 1 can occur on block 211, while detection of PSS 2 can occur on block 212. If PSS 1 and PSS 2 are transmitted simultaneously, the UE can use this to combine the processing of PSS 1 and PSS 2 for better PSS detection.

[0061] Alternatively, in Figure 2 In the nested design shown, multiple resource blocks may include overlapping blocks 221, 222, or partially overlapping blocks 231, 232. PSS 1 can have a longer length, which can improve detectability but requires more transmission power. In this case, there are two possible transmission options: (1) transmit only PSS 1, (2) transmit only PSS 2, which can be determined by the UE or gNB, similar to what was mentioned in the block-based design above.

[0062] Figure 3 An example of the design of the auxiliary synchronization signal provided by the present invention is shown. Figure 3 The auxiliary synchronization signal will be used as an example for explanation. Figure 2 Similarly, multiple SSSs can be generated. Multiple SSSs are mapped to multiple resource blocks for transmission. Multiple resource blocks may include non-overlapping blocks 311, 312. Alternatively or additionally, multiple resource blocks may include overlapping blocks 321, 322 or partially overlapping blocks 331, 332.

[0063] Figure 2 and Figure 3 The example shown can be merged into a single SSB. Figure 2 and Figure 3 The number and length of PSS / SSS in the text are for illustrative purposes only.

[0064] Optionally, an index can be assigned to each generated synchronization signal (PSS / SSS) of a specific length. For example, the index could be an ID or parameter associated with each synchronization signal. Optionally, the index can be integrated into the generation of each synchronization signal, or it can be carried by the MIB or SIB1. In this way, transmitting and receiving devices can use a specific index to reference a specific PSS / SSS.

[0065] Optionally, gNB can be used for activation or deactivation. Figure 2 and Figure 3 The diagram illustrates dynamic PSS / SSS transmission. This activation or deactivation can be based on network condition information, such as traffic load. For example, when traffic load is relatively high, the gNB can be used to deactivate dynamic PSS / SSS transmission and switch to a legacy design. When traffic load is relatively low, the gNB can be used to activate dynamic PSS / SSS transmission. Activation / deactivation can be sent using MAC CE, RRC, or any other control messages.

[0066] Figure 4 An example of a synchronization signal transmission mode provided by the present invention is shown. For example, a radio subframe may include two time slots. In each time slot, one or more SSBs may be transmitted. In each SSB, resources may be reserved for transmitting synchronization signals. The present invention can be applied to said reserved resources. Figure 4 The SSB shown is for illustrative purposes only. It should be noted that the synchronization signal design of the present invention (e.g., PSS / SSS transmission mode) can be transmitted without a PBCH, or using a conventional PBCH, or using a newly designed PBCH; the present invention does not limit this.

[0067] Figure 4 Three SSBs (or three possible synchronization signal detection windows) are shown, which can be used by a transmitting device (e.g., gNB) to transmit synchronization signals. The first SSB 410 (or window) can be used to transmit relatively short PSS and SSS (e.g., Figure 2 and Figure 3 The PSS 2 and SSS 2 are shown respectively, which can be efficiently detected by the UE under relatively good channel conditions. The second SSB 420 can be used to transmit PSS and SSS with relatively long transmission lengths (e.g., Figure 2 and Figure 3 The PSS 1 and SSS 1 are shown in the diagram, respectively. These PSS and SSS can be efficiently detected by a UE under relatively poor channel conditions. The third SSB 430 can be used to transmit both PSS and SSS of various lengths, thereby further improving the detection probability.

[0068] As another one not in Figure 4 The example shown can also repeat SSB 410 in the first subframe; repeat SSB 420 in the second subframe; and repeat SSB 430 in the third subframe.

[0069] It should be noted that, Figure 4 The number, transmission mode, and location of synchronization signals shown are for illustrative purposes only. Synchronization signals can be placed in any suitable resource location in the frequency-time domain. It should also be noted that, for clarity, Figure 4 The sizes of PSS / SSS and PBCH in the middle frame are magnified and do not reflect the true sizes of PSS / SSS / PBCH in the subframe.

[0070] It should also be noted that, Figure 2 and Figure 3 Any one or more of the synchronization signal patterns 211+212, 221+222, 231+232, 311+312, 321+322, and 331+332 shown can be applied individually or in combination to any resource grid (time-frequency resource) that supports the transmission of synchronization signals. Optionally, Figure 2 and Figure 3 Any of the synchronization signal modes shown can be used with Figure 1 The traditional SSB design shown is compatible. For example, PSS transmission can still follow... Figure 1 The traditional design shown, while SSS transmission can follow Figure 3 Any of the modes shown. Optionally, Figure 2 and Figure 3 The synchronization signal pattern shown can follow the same repetition pattern as the traditional PSS / SSS, or it can follow a new repetition pattern based on cell configuration.

[0071] Figure 5 A schematic diagram of the method 500 provided by the present invention is shown. The method is applied to a transmitting device and includes the following steps: Step 501: Generate multiple synchronization signals based on multiple sequences; Step 502: Map multiple synchronization signals to multiple resource blocks; Step 503: Use one or more resource blocks from a plurality of resource blocks to send one or more synchronization signals from a plurality of synchronization signals to one or more receiving devices.

[0072] Figure 6 A schematic diagram of the method 600 provided by the present invention is shown. The method is applied to a receiving device (e.g., a UE) and includes the following steps: Step 601: Send an indication to a transmitting device (e.g., gNB), wherein the indication is used to indicate one or more desired resource blocks, the one or more desired resource blocks being used to receive one or more synchronization signals; Step 602: As instructed, receive one or more synchronization signals from the transmitting device using one or more resource blocks.

[0073] In this invention, the PSS / SSS sequence can be adjusted according to the UE's requirements. For example, when the UE is in connected mode, it can request a specific PSS / SSS sequence.

[0074] Optionally, the gNB (as a transmitting device) can be notified to the UE that it supports the dynamic PSS / SSS transmission of the present invention. To this end, the gNB can send flag information or activation information to the UE via any control signaling to notify it of support for / enabling the dynamic PSS / SSS transmission of the present invention. Alternatively, one or more channel quality-related conditions can be preset (known to both the UE and the gNB) to activate the dynamic PSS / SSS transmission of the present invention.

[0075] Optionally, the gNB can be used to activate or deactivate on-demand PSS / SSS functionality from the UE. For example, when traffic is low (network resource utilization is low), the gNB can configure the UE to request PSS / SSS based on its needs (based on UE traffic or when the UE's measurements meet specific conditions).

[0076] When traffic is high, UE requests for specific PSS / SSS are prohibited. The gNB can send deterministic PSS / SSS.

[0077] Optionally, the UE can be used to send a request to the gNB to request the use of dynamic PSS / SSS transmission.

[0078] In step 601, the indicated one or more desired resource blocks may be determined by the UE based on channel measurements (e.g., channel quality estimates based on SSB or CSI-RS or any other reference resource).

[0079] Based on one or more received synchronization signals, the UE can be used to perform synchronization, measurement, and / or SCell activation.

[0080] Figure 7 A schematic diagram of the method 700 provided by the present invention is shown. The method is applied to a receiving device (e.g., a UE) and includes the following steps: Step 701: Receive an indication from a transmitting device (e.g., gNB), wherein the indication is used to indicate one or more resource blocks carrying one or more synchronization signals; Step 702: Based on the instruction, receive one or more synchronization signals from the transmitting device using one or more resource blocks.

[0081] In this invention, the PSS / SSS sequence can be adjusted according to network decisions. Optionally, the UE can be notified that the gNB (as a transmitting device) supports the dynamic PSS / SSS transmission of this invention. To this end, the gNB can send flag information or activation information to the UE via any control signaling to notify support for / enable the dynamic PSS / SSS transmission of this invention. Alternatively, one or more channel quality-related conditions can be preset (known to the UE and gNB) to activate the flexible PSS / SSS transmission of this invention. Optionally, the UE can be used to send a request to the gNB to request the use of dynamic PSS / SSS transmission.

[0082] Prior to step 701, the UE may send one or more measurement reports to the gNB. Based on one or more UE measurement reports and / or information from neighboring cells, the gNB may determine one or more suitable PSS / SSS sequences from multiple PSS / SSS sequences.

[0083] Figure 8 An example of a communication system 800 provided by the present invention is shown. The communication system 800 includes a gNB 810 (corresponding to...). Figures 1 to 7 The publicly disclosed transmitting device) and three UEs 820, 840, and 860 (each UE corresponds to Figures 1 to 7 (The receiving equipment disclosed in China).

[0084] In this example, the first UE 820 has the best channel conditions, the second UE 840 has the medium channel conditions, and the third UE 840 has the worst channel conditions. According to the present invention, the gNB 810, as a transmitting device, is used to generate multiple synchronization signals (PSS / SSS). For simplicity, Figure 8 Only the PSS is shown in the image. The gNB 810 can be used to send a relatively short PSS 1 to the first UE 820 (e.g., as shown in the image). Figure 2 (As shown). gNB 810 can be used to send a relatively long PSS2 to the second UE 840 (e.g., as shown). Figure 2 (As shown). gNB 810 can be used to send both PSS 1 and PSS 2 to a third UE 860. Alternatively, if there is another PSS that is even longer than PSS 1 and PSS 2, gNB 810 can be used to send that other PSS to the third UE 860.

[0085] In summary, this invention provides a dynamic PSS / SSS signal design. The dynamic PSS / SSS signal design can be UE-specific or UE group-specific. Multiple PSS / SSS signals are generated to adapt to UE channel conditions. Each PSS / SSS can be used for initial access (including synchronization, determining the physical cell ID, etc.), L1 / L3 measurements, and / or SCell activation procedures. UEs with better channel conditions can be assigned shorter synchronization signals (e.g., Figure 2 The PSS 2 and / or shown Figure 3 As shown in SSS 2), UEs with poor channel conditions can be allocated longer synchronization signals (e.g., Figure 2 The PSS 1 and / or shown Figure 3 The SSS shown is 1). Several signaling mechanisms are introduced. For example, the first signaling can be used to activate / deactivate the dynamic PSS / SSS transmission mode. If the dynamic PSS / SSS transmission mode is deactivated, the traditional PSS / SSS transmission mode can be used. The second signaling can be used to activate / deactivate the PSS / SSS transmission requested by the UE. If the PSS / SSS transmission requested by the UE is deactivated, the UE does not request a specific PSS / SSS transmission mode and should follow the PSS / SSS transmission mode indicated by the gNB. The third signaling can be used to indicate which PSS / SSS transmission mode to use.

[0086] This invention can be applied to UEs in any state, such as connected UEs, idle UEs, or inactive UEs. It can be used in any type of cell, such as normal cells, PCells, or SCells. Optionally, in the case of DSS cells, the PSS / SSS of this invention can coexist with conventional NR PSS / SSS. This invention is also compatible with idle or inactive UEs because idle / inactive UEs can be used to blindly search for all possible PSS / SSS signals, even if the dynamic PSS / SSS transmission mode of this invention is specified in the relevant specifications. In this case, the number of possible sequences may be limited (e.g., limited to two PSSs and / or two SSSs). Furthermore, a non-overlapping mode can be used, allowing idle / inactive UEs to perform autocorrelation calculations based on PSS and / or SSS transmitted on non-overlapping blocks.

[0087] This invention can be applied to any telecommunications network / system, such as, but not limited to, 5G (or NR), 6G mobile networks, etc. The transmitting and receiving devices in this invention may each include processing circuitry or chipsets (not shown) for performing, implementing, or initiating the various operations described herein. The processing circuitry may include hardware and software. The hardware may include analog circuitry or digital circuitry, or both. The digital circuitry may include components such as application-specific integrated circuits (ASICs), field-programmable arrays (FPGAs), digital signal processors (DSPs), or multi-purpose processors. Optionally, the processing circuitry (or chipset) includes one or more processors and non-transitory memory connected to the one or more processors. The non-transitory memory may carry executable program code that, when executed by the one or more processors, causes the device to perform, implement, or initiate the operations or methods described herein.

[0088] The invention has been described in conjunction with various embodiments and implementations as examples. However, based on a study of the drawings, the invention, and the independent claims, those skilled in the art will understand and implement other variations in practicing the claimed invention. In the claims and the specification, the word "comprising" does not exclude other elements or steps, and "a" or "an" does not exclude a plurality. A single element or other unit may fulfill the function of several entities or items described in the claims. The enumeration of certain measures in dissimilar dependent claims does not imply that combinations of these measures cannot be used in advantageous implementations.

Claims

1. A wireless communication method (500) applied to a transmitting device, characterized in that, The method includes: Multiple synchronization signals (501) are generated based on multiple sequences; Map the multiple synchronization signals (502) to multiple resource blocks; (503) Send one or more of the multiple synchronization signals to one or more receiving devices using one or more of the multiple resource blocks.

2. The method (500) according to claim 1, characterized in that, The synchronization signal includes one or more primary synchronization signals and / or one or more secondary synchronization signals.

3. The method (500) according to claim 1 or 2, characterized in that, The method for sending the one or more synchronization signals includes: Obtain one or more of the following: network condition information, channel condition information, and neighbor cell information; Based on one or more of the acquired network condition information, channel condition information, and neighboring cell information, the one or more synchronization signals are selected for transmission.

4. The method (500) according to claim 1 or 2, characterized in that, The method for sending the one or more synchronization signals includes: Receive an instruction from the receiving device, wherein the instruction is used to indicate: one or more desired sequences, or desired synchronization signal patterns; Based on the indication, one or more synchronization signals are selected for transmission.

5. The method (500) according to any one of claims 1 to 4, characterized in that, It also includes instructing the receiving device to provide one or more sequences for generating the one or more transmitted synchronization signals.

6. The method (500) according to any one of claims 1 to 5, characterized in that, The plurality of resource blocks include overlapping resource blocks (221, 222).

7. The method (500) according to any one of claims 1 to 6, characterized in that, The plurality of resource blocks include non-overlapping resource blocks (211, 212).

8. A wireless communication method (600) applied to a receiving device, characterized in that, The method includes: Send an instruction (601) to the transmitting device, wherein the instruction is used to indicate one or more required resource blocks, the one or more required resource blocks being used to receive one or more synchronization signals; According to the instructions, the one or more resource blocks are used to receive (602) the one or more synchronization signals from the transmitting device.

9. A wireless communication method (700) applied to a receiving device, characterized in that, The method includes: Receive (701) indication from the transmitting device, wherein the indication is used to indicate one or more resource blocks carrying one or more synchronization signals; Based on the instruction, the one or more resource blocks are used to receive (702) the one or more synchronization signals from the transmitting device.

10. The method according to claim 8 or 9, characterized in that, In response to receiving two or more synchronization signals using two or more resource blocks, the method includes: The two or more synchronization signals are processed in a combined manner.

11. A transmitting device (810) for wireless communication, characterized in that, The transmitting device (810) is used for: Multiple synchronization signals are generated based on multiple sequences; Map the multiple synchronization signals to multiple resource blocks; One or more of the multiple synchronization signals are transmitted to one or more receiving devices (820, 840, 860) using one or more of the multiple resource blocks.

12. A receiving device (820, 840, 860) for wireless communication, characterized in that, The receiving devices (820, 840, 860) are used for: Send an instruction to the transmitting device, wherein the instruction is used to indicate one or more required resource blocks, the one or more required resource blocks being used to receive one or more synchronization signals; According to the instructions, the one or more resource blocks are used to receive the one or more synchronization signals from the transmitting device.

13. A receiving device (820, 840, 860) for wireless communication, characterized in that, The receiving device is used for: Receive an indication from the transmitting device, wherein the indication is used to indicate one or more resource blocks carrying one or more synchronization signals; Based on the instruction, the one or more resource blocks are used to receive the one or more synchronization signals from the transmitting device.

14. A wireless communication system (800), characterized in that, It includes at least one transmitting device (810) according to claim 11 and one or more receiving devices (820, 840, 860) according to claim 12 or 13.

15. A computer program comprising instructions, characterized in that, When the program is executed by a computer, the instructions cause the computer to perform the method according to any one of claims 1 to 10.

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