Resource determination method and device for bypass transmission

Abstract

The invention provides a resource determination method for bypass transmission and equipment for executing the method. The method comprises: acquiring first information, the first information comprising information related to a channel state information reference signal (CSI-RS) resource; and sending the CSI-RS based on the first information, when the information related to the CSI-RS resources indicates that the multiplexing mode between the CSI-RS resources comprises time division multiplexing, an adjacent symbol before a first symbol of each time division multiplexed CSI-RS resource is a copy of the first symbol of the time division multiplexed CSI-RS resource, and / or wherein the adjacent symbol before the first symbol of the time division multiplexed CSI-RS resource is a copy of the first symbol of the time division multiplexed CSI-RS resource, and / or the adjacent symbol before the first symbol of the time division multiplexed CSI-RS resource is a copy of the first symbol of the time division multiplexed CSI-RS resource. When the CSI-RS resources are all used by the first node and the first node uses the same beam for transmission on the CSI-RS resources, an adjacent symbol before a first symbol of the CSI-RS resources is not a copy of other symbols. According to the method, the physical layer structure supports multiplexing of a plurality of CSI-RS resources in the same time slot, so that the resource utilization efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of wireless communication technology, and more specifically, to a method and device for positioning based on sidelink (SL) communication in a wireless system in a fifth generation new radio access technology (5G NR) system. Background Art

[0002] In Long Term Evolution (LTE) technology, bypass communication includes two main mechanisms: device-to-device (D2D) direct communication and vehicle-to-vehicle / infrastructure / pedestrian / network (V2X). V2X is designed based on D2D technology and is superior to D2D in terms of data rate, latency, reliability, link capacity, etc. It is the most representative bypass communication technology in LTE technology.

[0003] As an evolutionary technology of LTE, the 5G NR system also includes the further evolution of bypass communication. In version 16, the NR V2X technology was formulated. As an evolutionary version of the LTE V2X technology, NR V2X has better performance in all aspects. In version 17, the 5G NR system is expected to further expand the application scenarios of NR V2X to other broader application scenarios, such as commercial bypass communication and public safety (PS) scenarios. In version 18, 5G NR SL will further introduce the evolution of other scenarios and applications, such as SL technology on high frequency (FR2), unlicensed frequency bands, coexistence with traditional bypass communication systems, and SL technology for specific applications such as positioning. Summary of the invention

[0004] According to some embodiments of the present disclosure, a method performed by a first node in a communication system is provided, the method comprising: obtaining first information, wherein the first information includes information related to a channel state information reference signal CSI-RS resource; and sending a CSI-RS based on the first information, wherein when the information related to the CSI-RS resource indicates that the multiplexing method between CSI-RS resources includes time division multiplexing, an adjacent symbol before the first symbol of each time division multiplexed CSI-RS resource is a copy of the first symbol of the time division multiplexed CSI-RS resource, and / or wherein, when the CSI-RS resources are all used by the first node and the first node uses the same beam for transmission on the CSI-RS resources, an adjacent symbol before the first symbol of the CSI-RS resource is not a copy of other symbols.

[0005] In some examples, the first information also includes information related to physical bypass control channel PSCCH resources, and the method also includes sending PSCCH based on the first information; wherein, when the information related to the PSCCH resources indicates that the multiplexing method between PSCCH resources includes time division multiplexing, an adjacent symbol before the first symbol of each time division multiplexed PSCCH resource is a copy of the first symbol of the time division multiplexed PSCCH resource; and / or when the information related to the PSCCH resources indicates that the multiplexing method between PSCCH resources includes time division multiplexing, and the time division multiplexed PSCCH resources are all used by the first node, an adjacent symbol before the first symbol of the time division multiplexed PSCCH resource is not a copy of other symbols.

[0006] In some examples, the first information also includes information related to a physical bypass feedback channel PSFCH resource, and the method also includes sending the PSFCH based on the first information; wherein, when the information related to the PSFCH resource indicates that the multiplexing method between the PSFCH resources includes time division multiplexing, an adjacent symbol before the first symbol of each time division multiplexed PSFCH resource is a copy of the first symbol of the time division multiplexed PSFCH resource; and / or when the physical bypass shared channel PSSCH resource corresponding to the PSFCH resource includes different PSSCH resources, an adjacent symbol before the first symbol of the PSFCH resource is a copy of the first symbol of the PSFCH resource.

[0007] In some examples, when the first information indicates that the multiplexing method between CSI-RS resources and PSCCH resources includes time division multiplexing, if any one of the CSI-RS resources corresponds to at least one of the PSCCH resources, and any one of the PSCCH resources corresponds to at least one of the CSI-RS resources, then an adjacent symbol before the first symbol of the CSI-RS resource is not a copy of other symbols.

[0008] In some examples, the first information also includes information related to a physical bypass shared channel (PSSCH) resource, and the method also includes sending the PSSCH based on the first information; wherein, when both the CSI-RS resources and the PSSCH resources are used by the first node and the first node uses the same beam for transmission on the CSI-RS resources and the PSSCH resources, an adjacent symbol before the first symbol of the CSI-RS resource is not a copy of other symbols.

[0009] In some examples, the method also includes that when a first condition is met, an adjacent symbol before the first symbol of the CSI-RS resource is not a copy of other symbols; wherein the first condition includes: the CSI-RS transmission power is the same as the PSCCH transmission power; the CSI-RS transmission power and / or the PSCCH transmission power does not reach the maximum transmission power; the value of the relevant parameters used to calculate the CSI-RS transmission power and / or the PSCCH transmission power does not exceed the first threshold or does not meet the predetermined threshold range; the CSI-RS transmission power and / or the PSCCH transmission power is lower than the second threshold or meets the predetermined threshold range; the frequency domain size of the CSI-RS resource is lower than the third threshold; the ratio of the frequency domain size of the CSI-RS resource to the frequency domain size of the PSCCH resource is lower than the fourth threshold.

[0010] In some examples, when the time domain size of a CSI-RS resource exceeds a fifth threshold, an adjacent symbol before a first symbol of the CSI-RS resource is not a copy of other symbols.

[0011] In some examples, when the information related to the CSI-RS resources indicates that the multiplexing method between CSI-RS resources includes time division multiplexing, an adjacent symbol after the last symbol of each time division multiplexed CSI-RS resource is used for the interval; and / or when the information related to the CSI-RS resources indicates that the multiplexing method between CSI-RS resources includes time division multiplexing, and the multiplexing method between the PSCCH / PSSCH / PSFCH resources corresponding to the time division multiplexed CSI-RS resources includes time division multiplexing, an adjacent symbol after the last symbol of each time division multiplexed CSI-RS resource is used for the interval.

[0012] In some examples, the first information also includes information related to PSCCH resources, and the method also includes sending PSCCH based on the first information; wherein, when the information related to the PSCCH resources indicates that the multiplexing method between PSCCH resources includes time division multiplexing, an adjacent symbol after the last symbol of each time division multiplexed PSCCH resource is used for the interval.

[0013] In some examples, the first information also includes information related to a physical bypass feedback channel PSFCH resource, and the method also includes sending the PSFCH based on the first information; wherein, when the information related to the PSFCH resource indicates that the multiplexing method between the PSFCH resources includes time division multiplexing, an adjacent symbol after the last symbol of each time division multiplexed PSFCH resource is used for the interval.

[0014] In some examples, the first information also includes information related to a physical bypass shared channel PSSCH resource, and the method also includes sending the PSSCH based on the first information; wherein, when the information related to the PSSCH resource indicates that the multiplexing method between the PSSCH resources includes time division multiplexing, an adjacent symbol after the last symbol of each time division multiplexed PSSCH resource is used for the interval.

[0015] In some examples, the first information also includes at least one of the following: information related to resources used as copies of other symbols; information related to resources used for intervals; information related to capabilities of the first node and / or the second node receiving the CSI-RS; information related to demodulation reference signal DMRS resources; information related to resource pool type; information related to the correspondence between PSCCH resources and CSI-RS resources; and information related to the correspondence between PSFCH resources and CSI-RS resources.

[0016] In some examples, the correspondence between PSCCH resources and CSI-RS resources includes at least one of the following: one PSCCH resource corresponds to one CSI-RS resource in the same time unit; one PSCCH resource corresponds to multiple CSI-RS resources in the same time unit; one PSCCH resource corresponds to multiple CSI-RS resources in multiple time units.

[0017] In some examples, the first information includes information in a resource pool configuration, information in a configuration dedicated to the first node, high-level configuration information, base station configuration information, at least one of preconfigured information, and / or predefined information.

[0018] In some examples, the method also includes sending bypass control information SCI, wherein the SCI indicates at least one of the following information: resource-related information used as a copy of other symbols; resource-related information used for intervals; PSCCH resource-related information; and CSI-RS resource-related information.

[0019] In some examples, the method also includes determining at least one of the following based on the first information: a symbol used for duplication, interval, at least one of PSCCH, CSI-RS, PSSCH, PSFCH, and DMRS; at least one of the starting position, ending position, and size of the time domain and / or frequency domain of the PSCCH resources on the symbols used for PSCCH; at least one of the starting position, ending position, and size of the time domain and / or frequency domain of the PSFCH resources on the symbols used for PSFCH; the correspondence between PSCCH resources and CSI-RS resources; and the correspondence between PSFCH resources and CSI-RS resources.

[0020] In some examples, the method further includes determining a transmit beam for transmitting at least one of PSCCH, PSSCH, and CSI-RS, and using the determined transmit beam to transmit at least one of the PSCCH, PSSCH, and CSI-RS. When a symbol is a copy of another symbol, the symbol uses the same transmit beam as the other symbol. For example, the AGC symbol before the PSCCH (which is a copy of the first symbol of the PSCCH) uses the same transmit beam as the PSCCH, and the same applies to CSI-RS, PSFCH, and PSSCH.

[0021] In some examples, determining a transmit beam for sending PSCCH includes at least one of the following: determining a preset / configured beam as a transmit beam for sending PSCCH; if the first node uses the same beam to send multiple CSI-RS on multiple CSI-RS resources, and / or uses the same beam to send at least one CSI-RS and PSSCH on at least one CSI-RS resource and on a PSSCH resource, then determining the same beam as the transmit beam for sending PSCCH; wherein the PSCCH is a PSCCH associated with the multiple CSI-RS and / or the at least one CSI-RS and PSSCH.

[0022] In some examples, if the first node uses different beams to send multiple CSI-RSs on multiple CSI-RS resources, and / or uses different beams to send at least one CSI-RS and PSSCH on at least one CSI-RS resource and on a PSSCH resource, and the first node uses one PSCCH resource to send PSCCH, then at least one of the following methods is used to determine the transmit beam for sending PSCCH: determine a preset / configured beam as a transmit beam for sending PSCCH; determine a beam selected by the first node and a second node receiving PSCCH for bypass communication as a transmit beam for sending PSCCH; and if the first node is configured or determines according to preset criteria that there is a correspondence between the position of the PSCCH resource and the transmit beam, then determine the transmit beam for PSCCH based on the PSCCH resource and the correspondence; wherein the PSCCH is a PSCCH associated with the multiple CSI-RS and / or the at least one CSI-RS and PSSCH.

[0023] In some examples, if the first node uses different beams to send multiple CSI-RSs on multiple CSI-RS resources, and / or uses different beams to send at least one CSI-RS and PSSCH on at least one CSI-RS resource and on a PSSCH resource, and the first node uses multiple PSCCH resources to send PSCCH, then multiple PSCCHs are sent to indicate control information and / or PSSCHs of multiple CSI-RSs, respectively, and each PSCCH is sent on multiple PSCCH resources using the same transmission beam as its associated CSI-RS and / or PSSCH.

[0024] In some examples, if the first node uses different beams to send CSI-RS and PSSCH, and there is an overlap between the time domain resources of the CSI-RS and the time domain resources of the PSSCH, the first node uses at least one of the following methods to send CSI-RS and PSSCH based on the physical layer priority of CSI-RS and PSSCH: terminating the transmission of CSI-RS on the overlapping time domain resources; terminating the transmission of PSSCH on the overlapping time domain resources; sending CSI-RS on the overlapping time domain resources using the transmission beam used for PSSCH, or sending PSSCH using the transmission beam used for CSI-RS.

[0025] In some examples, the method also includes indicating at least one of the following in the SCI and / or higher layer signaling: indicating in the higher layer signaling the transmit beam determined for sending the PSCCH; indicating in the SCI the transmit beam determined for sending the PSSCH; indicating in the SCI the transmit beam determined for sending the PSFCH; and indicating in the SCI the transmit beam determined for sending the CSI-RS.

[0026] In some examples, when the first information indicates that a time unit includes multiple PSCCH resources, the method also includes using at least one of the following methods to determine the PSCCH resources and / or send the PSCCH: indicating in the PSCCH with the earliest time domain position in a time unit whether there are other PSCCH resources in the time unit used for transmission by the first node, and / or indicating the position of other PSCCH resources in the time unit; selecting the PSCCH resource with the earliest time domain position or a preset PSCCH resource among multiple PSCCH resources to send the PSCCH, and selecting at least one other PSCCH resource to send the PSCCH; based on the first information, obtaining a resource set in a resource pool, and when multiple PSCCHs are sent in a time unit, selecting a PSCCH resource from the resource set, and when one PSCCH is sent in a time unit, selecting a PSCCH resource from the resources in the resource pool except the resource set.

[0027] According to some embodiments of the present disclosure, a node device is further provided, the node device comprising: a transceiver; and a processor coupled to the transceiver and configured to execute any one of the methods described above.

[0028] The above and other features, aspects and advantages of the various embodiments of the present disclosure will be better understood with reference to the following description and the appended claims. The accompanying drawings, which form a part of the present disclosure, illustrate example embodiments of the present disclosure and are used together with the specification to explain the relevant principles. The details of one or more embodiments of the subject matter of the present invention are set forth in the accompanying drawings and the following description. Other potential features, aspects and advantages of the subject matter of the present invention will also become clear through these descriptions, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 An example wireless network 100 is shown in accordance with various embodiments of the present disclosure;

[0030] Figure 2a Example wireless transmit and receive paths according to the present disclosure are shown;

[0031] Figure 2b Example wireless transmit and receive paths according to the present disclosure are shown;

[0032] Figure 3a An example UE according to the present disclosure is shown;

[0033] Figure 3b An example gNB according to the present disclosure is shown;

[0034] Figure 4 is a flowchart illustrating a method according to an example embodiment of the present disclosure;

[0035] Figure 5a-5b , Figure 6a-6b , Figure 7a-7b , Figure 8 An example of a physical layer structure according to an embodiment of the present disclosure is shown respectively; and

[0036] Fig. 9 is a block diagram illustrating a node device according to an example embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] The following description with reference to the accompanying drawings is provided to facilitate a comprehensive understanding of the various embodiments of the present disclosure as defined by the claims and their equivalents. This description includes various specific details to facilitate understanding but should be considered as exemplary only. Therefore, one of ordinary skill in the art will recognize that various changes and modifications can be made to the various embodiments described herein without departing from the scope and spirit of the present disclosure. In addition, for the sake of clarity and conciseness, descriptions of well-known functions and structures may be omitted.

[0038] The terms and expressions used in the following specification and claims are not limited to their dictionary meanings, but are merely used by the inventor to enable a clear and consistent understanding of the present disclosure. Therefore, it should be apparent to those skilled in the art that the following description of various embodiments of the present disclosure is provided for illustration purposes only and not for the purpose of limiting the present disclosure as defined in the appended claims and their equivalents.

[0039] It should be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to "a component surface" includes reference to one or more of such surfaces.

[0040] The term "include" or "may include" refers to the presence of the corresponding disclosed functions, operations or components that can be used in various embodiments of the present disclosure, rather than limiting the presence of one or more additional functions, operations or features. In addition, the term "include" or "have" may be interpreted as indicating certain characteristics, numbers, steps, operations, constituent elements, components or combinations thereof, but should not be interpreted as excluding the possibility of the presence of one or more other characteristics, numbers, steps, operations, constituent elements, components or combinations thereof.

[0041] The term "or" used in various embodiments of the present disclosure includes any of the listed terms and all combinations thereof. For example, "A or B" may include A, may include B, or may include both A and B.

[0042] Unless defined differently, all terms (including technical terms or scientific terms) used in the present disclosure have the same meanings as understood by those skilled in the art described in the present disclosure. Common terms as defined in dictionaries are interpreted as having meanings consistent with the context in the relevant technical field, and should not be interpreted ideally or overly formally unless clearly defined in the present disclosure.

[0043] Figure 1 An example wireless network 100 is shown in accordance with various embodiments of the present disclosure. Figure 1 The embodiment of the wireless network 100 shown in FIG. 1 is for illustration only. Other embodiments of the wireless network 100 can be used without departing from the scope of the present disclosure.

[0044] Wireless network 100 includes gNodeB (gNB) 101, gNB 102, and gNB 103. gNB 101 communicates with gNB 102 and gNB 103. gNB 101 also communicates with at least one Internet Protocol (IP) network 130, such as the Internet, a private IP network, or other data network.

[0045] Depending on the network type, other well-known terms such as "base station" or "access point" can be used instead of "gNodeB" or "gNB". For convenience, the terms "gNodeB" and "gNB" are used in this patent document to refer to network infrastructure components that provide wireless access to remote terminals. Also, depending on the network type, other well-known terms such as "mobile station", "subscriber station", "remote terminal", "wireless terminal" or "user device" can be used instead of "user equipment" or "UE". For convenience, the terms "user equipment" and "UE" are used in this patent document to refer to a remote wireless device that wirelessly accesses a gNB, whether the UE is a mobile device (such as a mobile phone or smartphone) or a commonly thought of fixed device (such as a desktop computer or vending machine).

[0046] gNB 102 provides wireless broadband access to network 130 for a first plurality of user equipment (UE) within coverage area 120 of gNB 102. The first plurality of UEs include: UE 111, which may be located in a small business (SB); UE 112, which may be located in an enterprise (E); UE 113, which may be located in a WiFi hotspot (HS); UE 114, which may be located in a first residence (R); UE 115, which may be located in a second residence (R); UE 116, which may be a mobile device (M), such as a cellular phone, a wireless laptop, a wireless PDA, etc. gNB 103 provides wireless broadband access to network 130 for a second plurality of UEs within coverage area 125 of gNB 103. The second plurality of UEs include UE 115 and UE 116. In some embodiments, one or more of gNBs 101-103 may be capable of communicating with each other and with UEs 111-116 using 5G, long term evolution (LTE), LTE-A, WiMAX, or other advanced wireless communication technologies.

[0047] The dashed lines illustrate the approximate extents of coverage areas 120 and 125, which are shown as approximately circular for purposes of illustration and explanation only. It should be clearly understood that coverage areas associated with gNBs, such as coverage areas 120 and 125, can have other shapes, including irregular shapes, depending on the configuration of the gNB and variations in the radio environment associated with natural and man-made obstacles.

[0048] As described in more detail below, one or more of gNB 101, gNB 102, and gNB 103 include a 2D antenna array as described in embodiments of the present disclosure. In some embodiments, one or more of gNB 101, gNB 102, and gNB 103 support codebook design and structure for a system with a 2D antenna array.

[0049] although Figure 1 One example of a wireless network 100 is shown, but Figure 1 Various changes may be made. For example, wireless network 100 can include any number of gNBs and any number of UEs in any suitable arrangement. Also, gNB 101 can communicate directly with any number of UEs and provide those UEs with wireless broadband access to network 130. Similarly, each gNB 102-103 can communicate directly with network 130 and provide UEs with direct wireless broadband access to network 130. In addition, gNBs 101, 102, and / or 103 can provide access to other or additional external networks, such as an external telephone network or other type of data network.

[0050] Figure 2a and Figure 2bExample wireless transmit and receive paths according to the present disclosure are shown. In the following description, transmit path 200 can be described as being implemented in a gNB (such as gNB 102) and receive path 250 can be described as being implemented in a UE (such as UE 116). However, it should be understood that receive path 250 can be implemented in a gNB and transmit path 200 can be implemented in a UE. In some embodiments, receive path 250 is configured to support codebook design and structure for a system with a 2D antenna array as described in embodiments of the present disclosure.

[0051] The transmit path 200 includes a channel coding and modulation block 205, a serial to parallel (S to P) block 210, an N-point inverse fast Fourier transform (IFFT) block 215, a parallel to serial (P to S) block 220, an add cyclic prefix block 225, and an upconverter (UC) 230. The receive path 250 includes a downconverter (DC) 255, a remove cyclic prefix block 260, a serial to parallel (S to P) block 265, an N-point fast Fourier transform (FFT) block 270, a parallel to serial (P to S) block 275, and a channel decoding and demodulation block 280.

[0052] In the transmit path 200, the channel coding and modulation block 205 receives a set of information bits, applies coding (such as low-density parity check (LDPC) coding), and modulates the input bits (such as using quadrature phase shift keying (QPSK) or quadrature amplitude modulation (QAM)) to generate a sequence of frequency-domain modulation symbols. The serial-to-parallel (S-to-P) block 210 converts (such as demultiplexes) the serial modulation symbols into parallel data to generate N parallel symbol streams, where N is the number of IFFT / FFT points used in the gNB 102 and the UE 116. The N-point IFFT block 215 performs an IFFT operation on the N parallel symbol streams to generate a time-domain output signal. The parallel-to-serial block 220 converts (such as multiplexes) the parallel time-domain output symbols from the N-point IFFT block 215 to generate a serial time-domain signal. The add cyclic prefix block 225 inserts a cyclic prefix into the time-domain signal. The up-converter 230 modulates (such as up-converts) the output of the add cyclic prefix block 225 to an RF frequency for transmission via a wireless channel. The signal can also be filtered at baseband before conversion to RF frequency.

[0053] The RF signal transmitted from gNB 102 arrives at UE 116 after passing through a wireless channel, and an operation opposite to that at gNB 102 is performed at UE 116. Downconverter 255 downconverts the received signal to a baseband frequency, and remove cyclic prefix block 260 removes the cyclic prefix to generate a serial time-domain baseband signal. Serial-to-parallel block 265 converts the time-domain baseband signal into a parallel time-domain signal. N-point FFT block 270 performs an FFT algorithm to generate N parallel frequency-domain signals. Parallel-to-serial block 275 converts the parallel frequency-domain signals into a sequence of modulated data symbols. Channel decoding and demodulation block 280 demodulates and decodes the modulated symbols to recover the original input data stream.

[0054] Each of gNBs 101-103 may implement a transmit path 200 similar to that for transmitting in the downlink to UEs 111-116 and may implement a receive path 250 similar to that for receiving in the uplink from UEs 111-116. Similarly, each of UEs 111-116 may implement a transmit path 200 for transmitting in the uplink to gNBs 101-103 and may implement a receive path 250 for receiving in the downlink from gNBs 101-103.

[0055] Figure 2a and Figure 2b Each of the components in can be implemented using hardware only, or a combination of hardware and software / firmware. As a specific example, Figure 2a and Figure 2b At least some of the components in can be implemented with software, while other components can be implemented by configurable hardware or a mixture of software and configurable hardware. For example, FFT block 270 and IFFT block 215 can be implemented as a configurable software algorithm, in which the value of the number of points N can be modified according to the implementation.

[0056] In addition, although described as using FFT and IFFT, this is illustrative only and should not be construed as limiting the scope of the present disclosure. Other types of transforms can be used, such as discrete Fourier transform (DFT) and inverse discrete Fourier transform (IDFT) functions. It should be understood that for DFT and IDFT functions, the value of variable N can be any integer (such as 1, 2, 3, 4, etc.), while for FFT and IFFT functions, the value of variable N can be any integer as a power of 2 (such as 1, 2, 4, 8, 16, etc.).

[0057] although Figure 2a and Figure 2b An example of a wireless transmit and receive path is shown, but the Figure 2a and Figure 2b Make various changes. For example, Figure 2a and Figure 2b The various components in can be combined, further subdivided or omitted, and additional components can be added according to specific needs. Figure 2a and Figure 2b It is intended to illustrate examples of the types of transmit and receive paths that can be used in a wireless network. Any other suitable architecture can be used to support wireless communications in a wireless network.

[0058] Figure 3a An example UE 116 according to the present disclosure is shown. Figure 3a The embodiment of UE 116 shown in FIG. 1 is for illustration only, and Figure 1 UEs 111-115 can have the same or similar configurations. However, UEs have a variety of configurations, and Figure 3a The scope of the present disclosure is not limited to any particular implementation of the UE.

[0059] UE 116 includes antenna 305, radio frequency (RF) transceiver 310, transmit (TX) processing circuit 315, microphone 320, and receive (RX) processing circuit 325. UE 116 also includes speaker 330, processor / controller 340, input / output (I / O) interface 345, input device(s) 350, display 355, and memory 360. Memory 360 includes operating system (OS) 361 and one or more applications 362.

[0060] The RF transceiver 310 receives incoming RF signals from the antenna 305 transmitted by the gNB of the wireless network 100. The RF transceiver 310 downconverts the incoming RF signals to generate an intermediate frequency (IF) or baseband signal. The IF or baseband signal is sent to the RX processing circuit 325, where the RX processing circuit 325 generates a processed baseband signal by filtering, decoding and / or digitizing the baseband or IF signal. The RX processing circuit 325 sends the processed baseband signal to the speaker 330 (such as for voice data) or to the processor / controller 340 (such as for web browsing data) for further processing.

[0061] The TX processing circuit 315 receives analog or digital voice data from the microphone 320, or receives other outgoing baseband data (such as network data, email, or interactive video game data) from the processor / controller 340. The TX processing circuit 315 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceiver 310 receives the outgoing processed baseband or IF signal from the TX processing circuit 315 and up-converts the baseband or IF signal to an RF signal that is transmitted via the antenna 305.

[0062] The processor / controller 340 can include one or more processors or other processing devices and execute an OS 361 stored in the memory 360 to control the overall operation of the UE 116. For example, the processor / controller 340 can control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceiver 310, the RX processing circuit 325, and the TX processing circuit 315 according to well-known principles. In some embodiments, the processor / controller 340 includes at least one microprocessor or microcontroller.

[0063] The processor / controller 340 is also capable of executing other processes and programs resident in the memory 360, such as operations for channel quality measurement and reporting for a system with a 2D antenna array as described in the embodiments of the present disclosure. The processor / controller 340 is capable of moving data into or out of the memory 360 as needed for the executed process. In some embodiments, the processor / controller 340 is configured to execute applications 362 based on the OS 361 or in response to signals received from the gNB or operator. The processor / controller 340 is also coupled to the I / O interface 345, where the I / O interface 345 provides the UE 116 with the ability to connect to other devices such as laptops and handheld computers. The I / O interface 345 is the communication path between these accessories and the processor / controller 340.

[0064] Processor / controller 340 is also coupled to input device(s) 350 and display 355. An operator of UE 116 can input data into UE 116 using input device(s) 350. Display 355 can be a liquid crystal display or other display capable of presenting text and / or at least limited graphics (such as from a website). Memory 360 is coupled to processor / controller 340. A portion of memory 360 can include random access memory (RAM), while another portion of memory 360 can include flash memory or other read-only memory (ROM).

[0065] although Figure 3a An example of UE 116 is shown, but it is possible to Figure 3a Make various changes. For example, Figure 3a The various components in can be combined, further subdivided, or omitted, and additional components can be added according to specific needs. As a specific example, processor / controller 340 can be divided into multiple processors, such as one or more central processing units (CPUs) and one or more graphics processing units (GPUs). Moreover, although Figure 3a The UE 116 is shown configured as a mobile phone or smart phone, but the UE can be configured to operate as other types of mobile or stationary devices.

[0066] Figure 3bAn example gNB 102 according to the present disclosure is shown. Figure 3b The embodiment of the gNB 102 shown in FIG. is for illustration only, and Figure 1 Other gNBs can have the same or similar configurations. However, gNBs have a variety of configurations, and Figure 3b The scope of the present disclosure is not limited to any particular implementation of the gNB. It should be noted that gNB 101 and gNB 103 can include the same or similar structure as gNB 102.

[0067] like Figure 3b As shown in FIG. 1 , gNB 102 includes multiple antennas 370a-370n, multiple RF transceivers 372a-372n, transmit (TX) processing circuitry 374, and receive (RX) processing circuitry 376. In some embodiments, one or more of the multiple antennas 370a-370n include a 2D antenna array. gNB 102 also includes a controller / processor 378, a memory 380, and a backhaul or network interface 382.

[0068] The RF transceivers 372a-372n receive incoming RF signals from the antennas 370a-370n, such as signals transmitted by a UE or other gNB. The RF transceivers 372a-372n downconvert the incoming RF signals to generate IF or baseband signals. The IF or baseband signals are sent to the RX processing circuitry 376, which generates processed baseband signals by filtering, decoding, and / or digitizing the baseband or IF signals. The RX processing circuitry 376 sends the processed baseband signals to the controller / processor 378 for further processing.

[0069] The TX processing circuit 374 receives analog or digital data (such as voice data, network data, email, or interactive video game data) from the controller / processor 378. The TX processing circuit 374 encodes, multiplexes, and / or digitizes the outgoing baseband data to generate a processed baseband or IF signal. The RF transceivers 372a-372n receive the outgoing processed baseband or IF signals from the TX processing circuit 374 and up-convert the baseband or IF signals to RF signals that are transmitted via the antennas 370a-370n.

[0070] The controller / processor 378 can include one or more processors or other processing devices that control the overall operation of the gNB 102. For example, the controller / processor 378 can control the reception of forward channel signals and the transmission of reverse channel signals through the RF transceivers 372a-372n, the RX processing circuitry 376, and the TX processing circuitry 374 in accordance with well-known principles. The controller / processor 378 can also support additional functionality, such as more advanced wireless communication functionality. For example, the controller / processor 378 can perform a Blind Interference Sensing (BIS) process, such as performed through a Blind Interference Sensing (BIS) algorithm, and decode a received signal with an interference signal subtracted. The controller / processor 378 can support any of a variety of other functions in the gNB 102. In some embodiments, the controller / processor 378 includes at least one microprocessor or microcontroller.

[0071] The controller / processor 378 can also execute programs and other processes resident in the memory 380, such as a basic OS. The controller / processor 378 can also support channel quality measurement and reporting for systems with 2D antenna arrays as described in embodiments of the present disclosure. In some embodiments, the controller / processor 378 supports communications between entities such as web RTC. The controller / processor 378 can move data into or out of the memory 380 as needed by the executing process.

[0072] The controller / processor 378 is also coupled to a backhaul or network interface 382. The backhaul or network interface 382 allows the gNB 102 to communicate with other devices or systems via a backhaul connection or via a network. The backhaul or network interface 382 can support communication via any suitable (multiple) wired or wireless connections. For example, when the gNB 102 is implemented as part of a cellular communication system (such as a cellular communication system supporting 5G or new radio access technology or NR, LTE or LTE-A), the backhaul or network interface 382 can allow the gNB 102 to communicate with other gNBs via a wired or wireless backhaul connection. When the gNB 102 is implemented as an access point, the backhaul or network interface 382 can allow the gNB 102 to communicate with a larger network (such as the Internet) via a wired or wireless local area network or via a wired or wireless connection. The backhaul or network interface 382 includes any suitable structure that supports communication via a wired or wireless connection, such as an Ethernet or RF transceiver.

[0073] The memory 380 is coupled to the controller / processor 378. A portion of the memory 380 can include RAM, while another portion of the memory 380 can include flash memory or other ROM. In some embodiments, a plurality of instructions such as a BIS algorithm are stored in the memory. The plurality of instructions are configured to cause the controller / processor 378 to perform the BIS process and decode the received signal after subtracting at least one interference signal determined by the BIS algorithm.

[0074] As described in more detail below, the transmit and receive paths of the gNB 102 (implemented using the RF transceivers 372a-372n, the TX processing circuitry 374, and / or the RX processing circuitry 376) support aggregated communications with FDD cells and TDD cells.

[0075] although Figure 3b An example of a gNB 102 is shown, but the Figure 3b For example, gNB 102 can include any number of Figure 3a . As a specific example, an access point can include a number of backhaul or network interfaces 382, ​​and the controller / processor 378 can support routing functions to route data between different network addresses. As another specific example, while shown as including a single instance of TX processing circuitry 374 and a single instance of RX processing circuitry 376, the gNB 102 can include multiple instances of each (such as one for each RF transceiver).

[0076] In the Long Term Evolution (LTE) technology, bypass communication includes two main mechanisms: direct communication from device to device (D2D) and vehicle to vehicle / infrastructure / pedestrian / network (V2X). V2X is designed based on D2D technology and is superior to D2D in terms of data rate, latency, reliability, link capacity, etc. It is the most representative bypass communication technology in LTE technology. In the 5G system, bypass communication currently mainly includes vehicle to the outside world (V2X) communication.

[0077] As an evolutionary technology of LTE, the 5G NR system also includes the further evolution of bypass communication. In version 16, the NR V2X technology was formulated. As an evolutionary version of the LTE V2X technology, NR V2X has better performance in all aspects. In version 17, the 5G NR system is expected to further expand the application scenarios of NR V2X to other broader application scenarios, such as commercial bypass communication and public safety (PS) scenarios. In version 18, the evolution of bypass communication includes unlicensed bands, FR2, carrier aggregation, co-channel coexistence with LTE, and support for other technologies in other fields such as positioning.

[0078] In an embodiment of the present application, the information configured by the base station, indicated by signaling, configured by a high layer, and pre-configured may include a group of configuration information and / or multiple groups of configuration information, and the UE may select a group of configuration information for use from multiple groups of configuration information based on predefined conditions; and / or a group of configuration information may include multiple subsets, and the UE may select a subset for use from multiple subsets based on predefined conditions.

[0079] In the embodiment of the present application, lower than the threshold may be replaced by lower than or equal to the threshold, higher than (exceeding) the threshold may be replaced by higher than or equal to the threshold, lower than or equal to may be replaced by lower than, and greater than or equal to may be replaced by greater than; and vice versa.

[0080] Some of the technical solutions provided in the embodiments of the present application are specifically described based on the V2X system, but their application scenarios should not be limited to the V2X system in bypass communication, but can also be applied to other bypass transmission systems. For example, the design based on the V2X subchannel in the following embodiments can also be used for the D2D subchannel or other bypass transmission subchannels. The V2X resource pool in the following embodiments can also be replaced by a D2D resource pool in other bypass transmission systems such as D2D.

[0081] In an embodiment of the present application, when the bypass communication system is a V2X system, the terminal or UE may be a terminal or UE of various types such as a vehicle, infrastructure, or pedestrian.

[0082] The base station in this specification may also be replaced by other nodes, such as bypass nodes, and a specific example is a roadside station (infrastructure) UE in a bypass system. Any mechanism applicable to the base station in this embodiment may also be similarly used in the scenario where the base station is replaced by other bypass nodes, and no further description will be given.

[0083] The time slot in this specification may also be replaced by a time unit, the candidate time slot may also be replaced by a candidate time unit, and the candidate single time slot resource may also be replaced by a candidate single time unit resource. The time unit includes a specific time length, such as a number of consecutive symbols.

[0084] The time slots in this specification can be subframes or time slots in the physical sense, or subframes or time slots in the logical sense. Specifically, the subframes or time slots in the logical sense are the subframes or time slots corresponding to the resource pool of bypass communication. For example, in a V2X system, the resource pool is defined by a repeated bitmap, which is mapped to a specific set of time slots. The specific set of time slots can be all time slots, or all other time slots except certain specific time slots (such as time slots for transmitting MIB (Master Information Block) / SIB (System Information Block)). The time slots indicated as "1" in the bitmap can be used for V2X transmission and belong to the time slots corresponding to the V2X resource pool; the time slots indicated as "0" cannot be used for V2X transmission and do not belong to the time slots corresponding to the V2X resource pool.

[0085] The following is an example of a typical application scenario to illustrate the difference between the subframe or time slot in the physical sense or the logical sense: when calculating the time domain interval (gap) between two specific channels / messages (for example, a PSSCH carrying bypass data and a PSFCH carrying corresponding feedback information), it is assumed that the interval is N time slots. If the subframe or time slot in the physical sense is calculated, the N time slots correspond to an absolute time length of N*x milliseconds in the time domain, where x is the time length of the physical time slot (subframe) under the parameter set of the scenario, in milliseconds; otherwise, if the subframe or time slot in the logical sense is calculated, taking the bypass resource pool defined by the bitmap as an example, the interval of N time slots corresponds to N time slots indicated as "1" in the bitmap, and the absolute time length of the interval varies with the specific configuration of the bypass communication resource pool and does not have a fixed value.

[0086] Furthermore, the time slot in this specification can be a complete time slot or a number of symbols corresponding to the bypass communication in a time slot. For example, when the bypass communication is configured to be performed on the X1-X2 symbols in each time slot, the time slot in the following embodiments is the X1-X2 symbols in the time slot in this scenario; or, when the bypass communication is configured as a mini-slot transmission, the time slot in the following embodiments is a mini-slot defined or configured in the bypass system, rather than a time slot in the NR system; or, when the bypass communication is configured as a symbol-level transmission, the time slot in the following embodiments may be replaced by a symbol, or may be replaced by N symbols as the time domain granularity of the symbol-level transmission.

[0087] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0088] In this specification, the UE obtains configuration or obtains a predefined / (pre)configured parameter, including at least one of obtaining from a higher layer, obtaining from a base station, and obtaining from other UEs. For example, the second UE indicates a parameter to the first UE through higher layer signaling and / or physical layer signaling, which can be understood in this specification as the first UE obtaining the configuration of the parameter from the second UE.

[0089] In this specification, when a UE obtains or uses a threshold, the threshold may be predefined and / or configured. For a configured threshold, the configuration may be at least one of a high-level configuration (e.g., an RRC / MAC configuration), a base station configuration, a configuration from other UEs, and a pre-configuration.

[0090] In this specification, a time slot may also be replaced by other time units, such as an orthogonal frequency division multiplexing OFDM symbol, a mini-time slot, a subframe, an OFDM symbol, etc. A subchannel may also be replaced by other frequency domain units, such as a PRB, etc.

[0091] The text and drawings are provided as examples only to help readers understand the present disclosure. They are not intended and should not be interpreted as limiting the scope of the present disclosure in any way. Although certain embodiments and examples have been provided, it is obvious to those skilled in the art based on what is disclosed herein that the embodiments and examples shown may be changed without departing from the scope of the present disclosure.

[0092] In the bypass communication systems of LTE and NR, the bypass communication systems are designed mainly based on the needs of specific D2D and vehicle business scenarios, and the frequency bands used are mainly concentrated in low frequencies, such as the ITS frequency band dedicated to vehicle traffic on FR1. With the development of 5G technology, the business model of bypass communication is growing, so it is necessary to enhance the bypass communication technology so that it can be applied to a wider range of application scenarios, such as XR, IIoT, RedCap, etc. For the business needs of some future application scenarios, the transmission rate, delay and reliability that can be achieved by the current bypass communication technology need to be further enhanced. A feasible method is to apply bypass communication to high frequencies (such as frequency bands above 6GHz), introduce features such as beams, increase the transmission rate and reliability that the bypass system can support by increasing bandwidth, and reduce the service transmission delay through high-frequency communication. However, the current bypass communication system has not explored the possibility of bypass communication on high frequencies, nor has it introduced any enhancement mechanism for high frequencies.

[0093] In low-frequency systems, the CSI-RS in the bypass communication reference signal is mapped to the data channel and sent. This design is mainly to reduce the transmission of independent reference signals and improve resource occupancy efficiency. When the bypass communication system operates in the high-frequency band, the communicating UEs need to acquire and maintain beams, so the system needs more CSI-RS for beam measurement. Therefore, it is necessary to introduce a reference signal transmission method including independent CSI-RS and design a reasonable channel structure for independent CSI-RS.

[0094] In a high-frequency band bypass communication system, if wireless communication is required between a first UE and a second UE, both the first UE and the second UE need to determine a beam for communicating with each other, and use the beam to send and receive a bypass signal / channel to and from the other party. The beam further includes a transmit beam and a receive beam of each of the first UE and the second UE.

[0095] The UE can usually determine the beam based on the measurement results of the beam. One method of measuring the beam is that the transmitting UE transmits a reference signal with its transmit beam, the receiving UE measures the reference signal and provides the feedback result to the transmitting UE, and both parties select the beam corresponding to the reference signal with the best communication quality based on the measurement results. In the bypass system of FR2, the reference signal can be S-SSB, CSI-RS, DMRS.

[0096] In the bypass system of FR1, since beam measurement is not required, CSI-RS can usually be used to measure the channel quality of the FR1 air interface. For the purpose of saving overhead, it is limited to be sent together with data multiplexed on the same time-frequency resources. In the bypass system of FR2, in order to support the increase in the number of CSI-RSs brought about by the demand for beam measurement, and to send and receive CSI-RSs more flexibly to achieve the purpose of real-time channel measurement, in addition to the CSI-RSs multiplexed in data transmission in FR1, also known as non-independent CSI-RSs, it is also necessary to support CSI-RSs that may not be multiplexed with data, also known as independent CSI-RSs. This CSI-RS can be transmitted on the same time slot and subchannel as PSCCH and PSFCH, and may also be transmitted on the same time slot and subchannel as PSSCH. This PSSCH can be used to send second-order SCI, and can be used to send high-level control information that does not belong to data, such as MAC CE.

[0097] The present invention provides a method for transmitting CSI-RS in a bypass system, wherein a physical layer structure is provided to support multiplexing of CSI-RS resources in the same time slot, for example, allowing multiple CSI-RS resources to be included in one time slot for transmission of multiple CSI-RS.

[0098] In addition, the present invention also provides physical layer structures of other channels associated with CSI-RS, such as PSCCH, PSFCH, PSSCH, etc., and provides some methods for using the above physical layer structures.

[0099] The bypass communication system supports multiple CSI-RS resource patterns, and a pattern can use part of the REs of a specific pattern in its transmission resources instead of all REs. Therefore, when the CSI-RS patterns used in the system do not overlap, in order to improve resource utilization efficiency, different CSI-RS resources corresponding to different patterns can be multiplexed to the same time-frequency resources, such as the same time slot and subchannel. In order to support the design of multiplexing different CSI-RS resources to the same time slot and subchannel, it is necessary to design the physical layer structure of the corresponding PSCCH resources.

[0100] Furthermore, when the CSI-RS transmission can feed back the measurement result through the PSFCH, it is necessary to design the physical layer structure of the PSFCH resources corresponding to the multiplexed CSI-RS.

[0101] In addition, since different CSI-RS resources may be used by different UEs or by different beams of the same UE, it is also necessary to provide methods for how to use CSI-RS resources and how to determine the sending and receiving beams based on the physical layer structure and the use of CSI-RS resources.

[0102] In this specification, the multiplexing method of signals / channels includes: the multiplexing method between the physical layer resources corresponding to the signal / channel, which may be the same as or different from the multiplexing method between the signals / channels actually transmitted, and is used to illustrate how different resources in the physical layer structure used by the system are multiplexed in time slots and sub-channels; and / or, the multiplexing method between the transmissions of the signal / channel may be a subset of the multiplexing method between the physical layer resources, and is used to illustrate how the UE selects the multiplexed resources in the physical layer structure for actual transmission.

[0103] This specification provides some methods for the transmitting UE of the signal / channel to determine the resources used for AGC and / or transmit the signal / channel corresponding to the AGC. Since AGC is a method for adjusting the receiver power range performed by the receiving UE, the processing method of the transmitting UE for AGC includes using a specific signal / channel mapping method on the resource corresponding to the AGC when generating the signal / channel, which can be used to enable the receiving UE to perform AGC on the resource. A specific example is that the processing method of the transmitting UE for the AGC symbol is to send a duplication of a symbol of other bypass signals / channels on the symbol, such as sending a duplication of the first CSI-RS symbol on the AGC symbol before the CSI-RS, sending a duplication of the first PSCCH symbol on the AGC symbol before the PSCCH, etc.; and maintaining the same transmission power on the AGC symbol and the subsequent signal / channel symbol.

[0104] For ease of description, this specification does not provide the above-mentioned specific method in every method involving the processing of AGC by the transmitting UE, but refers to determining the resources for AGC and transmitting the signal / channel corresponding to AGC. The behavior of the transmitting UE in this specification in determining the resources for AGC resources and transmitting the signal / channel corresponding to AGC can be replaced by the above-mentioned specific processing method for the resources for AGC by the transmitting UE. For example, the UE determines that an AGC symbol before a CSI-RS can be replaced by the UE determining a symbol, which is located before the CSI-RS, for the UE to send a replica of the first symbol of CSI-RS on which it sends, and uses the same transmission power as the CSI-RS on this symbol.

[0105] Figure 4 The flowchart of the method executed by the first node according to an embodiment of the present disclosure is shown.

[0106] In step 401, a first UE obtains first information, where the first information includes CSI-RS resource related information;

[0107] In step 403, based on the first information, the first UE sends a CSI-RS.

[0108] The first UE may perform bypass transmission, including sending CSI-RS, based on a physical layer structure (or a physical layer time slot structure, a physical layer frame structure, or other physical layer time unit structure), and the physical layer structure may be referred to as a first structure. The first structure includes a physical layer structure corresponding to at least one of the following resources:

[0109] The resource corresponding to the AGC may be at least one AGC symbol;

[0110] The interval resource may be at least one interval symbol;

[0111] At least one PSCCH resource (also referred to as a PSCCH occasion, which may be used interchangeably in this specification);

[0112] At least one CSI-RS resource.

[0113] Based on the first information, the first UE may also use the first structure to send or receive at least one of the following signals / channels: PSSCH, PSFCH.

[0114] The PSFCH may be used to feed back the measurement result of the CSI-RS.

[0115] The first information includes at least one of the following:

[0116] The multiplexing method between CSI-RSs further includes TDM and / or comb-based multiplexing; the multiplexing method can be the CSI-RS multiplexing method indicated in the resource pool configuration information. The multiplexing method of CSI-RS in this specification mainly refers to the multiplexing method between CSI-RSs in the same sub-channel. In different sub-channels, CSI-RS can still use the FDM multiplexing method, which does not affect the technical methods provided in this specification;

[0117] Multiplexing mode between PSCCHs; wherein the PSCCH may be different PSCCH resources corresponding to different CSI-RSs; further including TDM and / or FDM; the multiplexing mode may be a multiplexing mode between PSCCHs indicated in the resource pool configuration information;

[0118] Multiplexing mode between PSCCH and CSI-RS; wherein PSCCH and CSI-RS may be mutually associated PSCCH and CSI-RS, wherein the CSI-RS associated with PSCCH may be the CSI-RS indicated in the PSCCH; further including TDM and / or FDM; the multiplexing mode may be the multiplexing mode of PSCCH and CSI-RS indicated in the resource pool configuration information;

[0119] Multiplexing method between CSI-RS and PSSCH; further including, when CSI-RS and PSSCH use or can use the same transmission beam, CSI-RS and PSSCH are TDM and / or FDM; and / or when CSI-RS and PSSCH use or can use different transmission beams, CSI-RS and PSSCH are TDM;

[0120] The information about the resource positions of the PSCCH and the CSI-RS includes at least one of the following: the time domain positions of at least one PSCCH resource and the CSI-RS resource corresponding to the PSCCH resource are continuous (for example, on continuous OFDM symbols), there is a gap between the time domain positions of at least one PSCCH resource and the CSI-RS resource corresponding to the PSCCH resource (for example, on discontinuous OFDM symbols), the time domain positions of multiple PSCCH resources in a time slot are all before the time domain positions of multiple CSI-RS resources, and the time domain position of at least one PSCCH resource in a time slot is before the time domain position of the CSI-RS resource corresponding to the PSCCH resource but may be before or after the time domain positions of other PSCCH resources and / or CSI-RS resources; wherein, the CSI-RS resource corresponding to the PSCCH resource is used to transmit the CSI-RS associated with the PSCCH;

[0121] The location of resources for AGC and / or information for determining the location of resources corresponding to AGC; further including the location of AGC symbols and / or information for determining the location of AGC symbols;

[0122] The location of the resource corresponding to the interval and / or information for determining the location of the resource corresponding to the interval; further including the location of the interval symbol and / or information for determining the location of the interval symbol;

[0123] Information about CSI-RS resources;

[0124] Information about UE capabilities, where the UE capabilities may be capabilities of the first UE and / or a UE corresponding to a target ID (destination ID) of the CSI-RS, and further include capabilities about AGC processing time;

[0125] The information about the PSSCH resource further includes at least one of the following: a time domain resource starting position and / or a time domain resource ending position of the PSSCH resource in a time slot, a time domain resource size of the PSSCH resource (e.g., the number of symbols used by the PSSCH resource) and / or a maximum threshold and / or a minimum threshold of the time domain resource size;

[0126] Information about demodulation reference signal DMRS resources, including the location of DMRS time domain and / or frequency domain and / or code domain resources (the code domain resources may correspond to parameters used by the DMRS sequence, such as an index or initialization factor, etc.), and further including information about different DMRS resources corresponding to different PSSCH resource locations / sizes;

[0127] The information about the resource pool type further includes whether the resource pool is a resource pool used only for CSI-RS or only for beam measurement, or whether the resource pool is a resource pool that can be used for CSI-RS / beam measurement and also for communication;

[0128] The information about the PSFCH resource further includes at least one of the following: a period of the PSFCH resource, a time domain resource starting position and / or a time domain resource ending position of the PSFCH resource in a time slot, a time domain resource size of the PSFCH resource (e.g., the number of symbols used by the PSSCH resource) and / or a maximum threshold and / or a minimum threshold of the time domain resource size, a frequency domain resource starting position and / or a frequency domain resource ending position and / or a number of the PSFCH resource, a frequency domain resource size of the PSFCH resource, and a sequence generation parameter of the PSFCH resource;

[0129] Multiplexing mode between PSFCHs; further including TDM and / or FDM; the multiplexing mode can be the PSFCH multiplexing mode indicated in the resource pool configuration information. The multiplexing mode of PSFCH in this specification mainly refers to the multiplexing mode between CSI-RS in the same subchannel. In different subchannels, PSFCH can still use the FDM multiplexing mode, which does not affect the technical methods provided in this specification;

[0130] The correspondence between PSFCH resources and CSI-RS resources.

[0131] The first information includes at least one of information in resource pool configuration, information in UE-specific configuration, information configured by a high layer, information configured by a base station, and preconfigured information, and / or includes predefined information. For example, information such as a CSI resource pattern, a multiplexing mode of CSI and PSSCH, and a multiplexing mode of PSCCH are configured in the resource pool configuration, and for another example, information about resource locations of PSCCH and CSI-RS, the first symbol in a time slot being used as an AGC symbol, and the last symbol in a time slot being used as an interval symbol are predefined.

[0132] Optionally, the first structure further includes at least one of the following:

[0133] At least one symbol used for at least one of AGC, interval, PSCCH, CSI-RS, PSSCH, PSFCH, DMRS;

[0134] If at least one symbol is used for PSCCH, at least one of the starting position, ending position, and size of at least one PSCCH resource in the time domain and / or frequency domain on the symbol; further, at least one of the starting position, ending position, and size of at least one PSCCH resource in at least one subchannel on the symbol and / or at least one PSCCH resource in the resource pool on the symbol;

[0135] If at least one symbol is used for PSFCH, at least one item of the starting position, ending position, and size of at least one PSFCH resource in the time domain and / or frequency domain on the symbol; further, at least one item of the starting position, ending position, and size of at least one PSFCH resource in at least one subchannel on the symbol and / or at least one PSFCH resource in the resource pool on the symbol;

[0136] A correspondence between at least one PSCCH resource and at least one CSI-RS resource;

[0137] The correspondence between at least one PSFCH resource and at least one CSI-RS resource.

[0138] Optionally, the first structure is based on the first information. Further, the first UE determines that the first structure includes at least one of the following: determining whether there are resources for AGC before at least one of PSCCH resources, PSSCH resources, and PSFCH resources, determining whether there are resources for AGC before CSI-RS resources, determining whether there are resources for interval after at least one of PSCCH resources, PSSCH resources, and PSFCH resources, and determining whether there are resources for interval after CSI-RS resources.

[0139] Optionally, determining whether there are resources for AGC before the PSCCH resource includes: when at least one first PSCCH resource and at least one second PSCCH resource are TDM, and / or when at least one first PSCCH resource and at least one second PSCCH resource are TDM and the first PSCCH resource and the second PSCCH resource are not configured to be used by the same transmitting end UE, there are resources for AGC between the first PSCCH resource and the second PSCCH resource, such as at least one AGC symbol; the at least one AGC symbol may be located on an adjacent symbol before the start symbol of the later one of the first and second PSCCH resources. Optionally, if the first PSCCH resource and the second PSCCH resource are continuous in the time domain (continuous here means that there are no other PSCCH resources / resources for other bypass signal channels between the time domain positions of the first PSCCH resource and the second PSCCH resource, but there may be resources for AGC or intervals), then there are resources for AGC between the first PSCCH resource and the second PSCCH resource, such as an OFDM symbol for AGC. In this method, the first PSCCH resource may include one or more resources, and / or the second PSCCH resource may include one or more resources; when multiple resources are included, the multiple resources may be FDM, and at this time the multiplexing mode of PSCCH is TDM and FDM.

[0140] Optionally, determining whether there are resources for AGC before the PSFCH resource includes: when at least one first PSFCH resource and at least one second PSFCH resource are TDM, and / or when at least one first PSFCH resource and at least one second PSFCH corresponding PSSCH resources include different resources, there are resources for AGC between the first PSFCH and the second PSFCH resource, such as at least one AGC symbol; the at least one AGC symbol may be located on an adjacent symbol before the start symbol of the later one of the first and second PSFCH resources. Optionally, if the first PSFCH resource and the second PSFCH resource are continuous in the time domain (continuous here means that there are no other PSFCH resources / resources for other bypass signal channels between the time domain positions of the first PSFCH resource and the second PSFCH resource, but there may be resources for AGC or intervals), then there are resources for AGC between the first PSFCH resource and the second PSFCH resource, such as an OFDM symbol for AGC. In this method, the first PSFCH resource may include one or more resources, and / or the second PSFCH resource may include one or more resources; when multiple resources are included, the multiple resources may be FDM, and at this time the multiplexing mode of PSFCH is TDM and FDM.

[0141] Optionally, determining whether there are resources for AGC before the CSI-RS resources includes: when at least one first CSI-RS resource and at least one second CSI-RS resource are TDM, and / or when at least one first CSI-RS resource and at least one second CSI-RS resource can be used to allow different UEs to send CSI-RS thereon and / or allow the same UE to send CSI-RS thereon using different beams, there are resources for AGC between the first CSI-RS resource and the second CSI-RS resource, such as at least one AGC symbol; the at least one AGC symbol can be located on a symbol before the start symbol of the later one of the first and second CSI-RS resources. Optionally, if the first CSI-RS resource and the second CSI-RS resource are continuous in the time domain (continuous here means that there are no other PSCCH resources / CSI-RS resources / resources for other bypass signal channels between the time domain positions of the first CSI-RS resource and the second CSI-RS resource, but there may be resources for AGC or intervals), then there are resources for AGC between the first CSI-RS resource and the second CSI-RS resource, for example, an OFDM symbol for AGC. In this method, the first CSI-RS resource may include one or more resources, and / or the second CSI-RS resource may include one or more resources.

[0142] Optionally, determining whether there are resources for AGC before the CSI-RS resource includes: when at least one third CSI-RS resource and at least one third PSCCH resource are TDM, and the third PSCCH resource includes at least one PSCCH resource whose corresponding CSI-RS resource does not belong to the third CSI-RS resource (or the third CSI-RS resource includes at least one CSI-RS resource whose corresponding PSCCH resource does not belong to the third PSCCH resource), there are resources for AGC between the third CSI-RS resource and the third PSCCH resource, such as at least one AGC symbol; accordingly, when at least one third CSI-RS and at least one third PSCCH resource are TDM, and any one of the third PSCCH resources corresponds to at least one of the third CSI-RS resources (or any one of the third CSI-RS resources). one corresponding to at least one of the third PSCCH resources), there are no resources for AGC between the third CSI-RS resource and the third PSCCH resource, or an adjacent symbol before the start symbol of the later one between the third PSCCH resource and the third CSI-RS resource is not used for AGC; and / or, when at least one third CSI-RS resource and at least one third PSCCH resource are TDM, and at least two PSCCH resources in the time slot are TDM and / or at least two CSI-RS resources in the time slot are TDM, there are resources for AGC between the third CSI-RS resource and the third PSCCH resource, such as at least one AGC symbol; the at least one AGC symbol can be located on an adjacent symbol before the start symbol of the later one between the third PSCCH resource and the third CSI-RS resource. Optionally, if the third CSI-RS resource and the third PSCCH resource are continuous in the time domain (continuous here means that there are no other PSCCH resources / CSI-RS resources / resources for other bypass signal channels between the time domain positions of the third CSI-RS resource and the third PSCCH resource, but there may be resources for AGC or intervals), then there are resources for AGC between the third CSI-RS resource and the third PSCCH resource, for example, an OFDM symbol for AGC. In this method, the third CSI-RS resource may include one or more resources, and when multiple resources are included, the multiple resources may be based on comb multiplexing; and / or the third PSCCH resource may include one or more resources, and when multiple resources are included, the multiple resources may be FDM.

[0143] Optionally, determining whether there are resources for AGC before CSI-RS and / or PSSCH resources includes: when at least one third CSI-RS resource and at least one PSSCH resource can be used for transmission by different UEs and / or can be used by the same UE for transmission using different transmit beams, there are resources for AGC before CSI-RS and / or PSSCH resources. Further, if CSI-RS and PSSCH resources are TDM, the resources for AGC are located before the later of the two; if CSI-RS and PSSCH resources overlap in the time domain and have different time domain starting positions and / or different time domain ending positions, the resources for AGC are located before the starting symbol and / or after the ending symbol of at least one of the two, for example, if CSI-RS is mapped to some REs in several symbols in the middle of PSSCH resources, the resources for AGC are located before the starting symbol of CSI-RS and / or after the ending symbol of CSI-RS. Further, if the resource pool configuration includes that the UE can use different transmit beams to transmit on the CSI-RS resources and on the PSSCH resources, then the first structure used for the actual transmission of the first UE includes the resources for AGC regardless of whether different or the same transmit beams are used; or, if the resource pool configuration includes that the UE can use different transmit beams to transmit on the CSI-RS resources and on the PSSCH resources, then the first structure used when the actual transmission of the first UE uses different transmit beams includes the resources for AGC, and the first structure used when the same transmit beam is used does not include the resources for AGC, and the SCI and / or higher-layer signaling indicates that the resources for AGC are not included in the transmission.

[0144] Optionally, determining whether there are resources for AGC before the CSI-RS resources includes: when at least one fourth CSI-RS resource and at least one fourth PSCCH and / or PSSCH resource are TDM and the first condition is also met, there are resources for AGC between the fourth CSI-RS resource and the fourth PSCCH and / or PSSCH resource, such as at least one AGC symbol; the at least one AGC symbol can be located on an adjacent symbol before the start symbol of a later resource between the fourth PSCCH and / or PSSCH resource and the fourth CSI-RS resource. The first condition includes at least one of the following: the first transmission power of the first UE on the fourth PSCCH and / or PSSCH resource is different from the second transmission power on the fourth CSI-RS resource, the first transmission power and / or the second transmission power reaches the maximum transmission power (for example, 23dBm), the value of the relevant parameters used to calculate the first transmission power and / or the second transmission power exceeds the threshold or meets the predetermined threshold range, the first transmission power and / or the second transmission power exceeds or reaches the power threshold, the frequency domain size of the fourth CSI-RS resource exceeds the threshold or does not meet the predetermined threshold range, and the ratio of the frequency domain size of the fourth CSI-RS resource to the frequency domain size of the fourth PSCCH resource exceeds the threshold. Accordingly, when at least one of the following is satisfied, an adjacent symbol before the starting symbol of the later resource between the fourth PSCCH resource and the fourth CSI-RS resource is not used for AGC: the first transmission power is the same as the second transmission power, the first transmission power and / or the second transmission power does not reach the maximum transmission power (e.g., 23 dBm), the value of the relevant parameter used to calculate the first transmission power and / or the second transmission power does not exceed the threshold or does not meet the predetermined threshold range, the first transmission power and / or the second transmission power is lower than the power threshold or meets the predetermined threshold range, the frequency domain size of the fourth CSI-RS resource is lower than the threshold, and the ratio of the frequency domain size of the fourth CSI-RS resource to the frequency domain size of the fourth PSCCH resource is lower than the threshold. The threshold of the power threshold and / or the frequency domain size and / or the frequency domain size ratio may be preset, and / or determined according to the UE device or UE capability (e.g., capability related to the maximum transmission power), and / or configured, for example, it may be a threshold set based on the maximum transmission power on each RE that makes the transmission undistorted; and may be included in the first information. Optionally, the first transmission power and / or the second transmission power includes the total transmission power over at least one time unit, for example, the total transmission power over one symbol; and / or the transmission power over at least one frequency domain resource unit over at least one time unit, the frequency domain resource unit including at least one of a subchannel, a PRB, and a RE.Optionally, if the fourth CSI-RS resource and the fourth PSCCH and / or PSSCH resource are continuous in the time domain (continuous here means that there are no other PSCCH and / or PSSCH resources / CSI-RS resources / resources for other bypass signal channels between the time domain positions of the fourth CSI-RS resource and the fourth PSCCH and / or PSSCH resource, but there may be resources for AGC or intervals), then there are resources for AGC between the fourth CSI-RS resource and the fourth PSCCH and / or PSSCH resource, for example, an OFDM symbol for AGC. In this method, the fourth CSI-RS resource may include one or more resources, and when multiple resources are included, the multiple resources may be based on comb multiplexing; and / or the fourth PSCCH and / or PSSCH resource may include one or more resources, and when multiple resources are included, the multiple resources may be FDM.

[0145] Optionally, determining whether there are resources for AGC before the CSI-RS resource includes: when the time domain size of the CSI-RS resource exceeds a threshold, an adjacent symbol before the starting symbol of the CSI-RS resource is not used for AGC; otherwise, a symbol before the starting symbol of the CSI-RS resource is used for AGC or determining whether a symbol before the CSI-RS resource is used for AGC according to the above other methods. This method can be used in combination with the above other methods and rewrite the AGC symbol before the CSI-RS resource determined in the above other methods. For example, first use the above other methods to determine that a symbol before the CSI-RS is an AGC symbol, and then determine whether the symbol is not used for AGC according to the time domain size of the CSI-RS resource. Optionally, when the first UE sends a CSI-RS to the second UE, it determines whether to use this method according to the UE capability of AGC provided by the second UE; for example, when the AGC processing delay of the second UE is lower than the threshold, or when the UE capability level of the AGC processing delay of the second UE meets the preset range, the first UE uses this method, otherwise the first UE does not use this method. The method can also be similarly used to determine whether there are resources for AGC before the PSCCH resources. The technical effect of the method is that when the second UE performs AGC for a short time, a few microseconds of a CSI-RS resource symbol can be used for AGC, and the CSI-RS can be received and measured in the remaining time within the symbol. Therefore, the overhead caused by the AGC symbol can be reduced without significantly reducing the measurement accuracy.

[0146] The optional methods for determining the resources for AGC described above may be combined in any way, for example, when the conditions in at least two of the methods described above are met, there are resources for AGC. The methods described above may also be used in reverse to determine that there are no corresponding resources for AGC, for example, when the conditions in any of the methods described above are not met, or when the conditions in some of the methods described above are not met, there are no corresponding resources for AGC.

[0147] Optionally, determining whether there are resources for interval after the PSCCH and / or PSSCH and / or PSFCH resources and / or after the CSI-RS resources includes: when the second condition is met, there are resources for interval between the fifth resource and the sixth resource, wherein the fifth resource and the sixth resource include at least one of PSCCH, PSSCH, PSFCH, CSI-RS, and may include one or more resources; and / or when the second condition is not met, at least one of the above-mentioned resources for interval does not exist.

[0148] The second condition includes at least one of the following:

[0149] The first UE may perform a transceiver conversion within a time slot, and the transceiver conversion may further include a transceiver conversion of at least two items among PSCCH, PSSCH, PSFCH, and CSI-RS, or may be a conversion between transceivers of any bypass signal / channel; further, whether the first UE can perform the conversion is preset, and / or determined according to UE capabilities, and / or indicated in the first information;

[0150] At least one fifth resource and at least one sixth resource are TDM;

[0151] The fifth resource and the sixth resource both include CSI-RS, and the PSCCH and / or PSSCH and / or PSFCH resources corresponding to the respective resources are TDM;

[0152] The fifth resource includes a CSI-RS, and at least one of its corresponding PSCCH and / or PSSCH and / or PSFCH resources is not included in the sixth resource.

[0153] The resource used for spacing may be at least one spacing symbol, and the at least one spacing symbol may be located on an adjacent symbol after the end symbol of an earlier resource between the fifth resource and the sixth resource. Optionally, if the fifth resource and the sixth resource are continuous in the time domain (similar to the meaning explained in other methods above), there is a resource used for spacing between the above resources, such as a spacing symbol.

[0154] Optionally, the correspondence between at least one PSCCH resource and at least one CSI-RS resource may be based on a preset / configured criterion, including at least one of the following:

[0155] One PSCCH resource corresponds to one CSI-RS resource in the same time slot;

[0156] One PSCCH resource corresponds to multiple CSI-RS resources in the same time slot;

[0157] One PSCCH resource corresponds to multiple CSI-RS resources in multiple time slots.

[0158] The relationship between the time domain positions of the PSCCH resource and the corresponding CSI-RS resource may be indicated in the PSCCH resource, for example, the PSCCH resource is in time slot n, the CSI-RS resource is in time slot n to n+a, and the value of a is indicated in the PSCCH. The relationship may also be preset / configured, for example, in the above example, the value of a is preset / configured.

[0159] Optionally, when each time slot in the first structure includes N CSI-RS resources, one PSCCH resource corresponds to all N*P CSI-RS resources in P time slots, P is an integer greater than or equal to 1, and the values ​​of N and / or P may be preset / configured, and the value of P may be indicated in PSCCH and / or SCI. Optionally, the P time slots may be continuous; or the P time slots may be periodic, for example, there are K time slots between the P1th time slot and the P2th time slot (the subscript represents the index of the time slot in the P time slots), and the value of K may be at least one of preset, configured, and indicated in PSCCH / SCI.

[0160] Optionally, one PSCCH resource corresponds to H CSI-RS resources, and the value of H is at least one of preset, configured, and indicated in PSCCH / SCI. The H resources are a total of H CSI-RS resources in a number of consecutive time slots starting from the time slot where the PSCCH resource is located, where the number of time slots is determined by the value of H and the number of CSI-RS in each time slot in the first structure, and can be indicated in PSCCH / SCI.

[0161] The first structure provided in this specification allows a subchannel in a time slot to include multiple CSI-RS resources. Since the transmission on FR2 can be spatially separated based on beams, it is necessary to consider whether to limit the spatial usage method of CSI-RS resources. The following are some methods for how UE uses or selects CSI-RS. The following methods themselves can be preset and / or configured, and which of the following methods are used in the bypass communication system can be obtained by the UE in the first information.

[0162] Optionally, in the first structure, a subchannel on a time slot includes multiple CSI-RS resources, and the multiple CSI-RS resources can be used by the same transmitting UE to send CSI-RS, and cannot be selected by different transmitting UEs to send CSI-RS; accordingly, when selecting CSI-RS resources, the transmitting UE selects all CSI-RS resources in each time slot and subchannel, and after excluding at least one CSI-RS resource in each time slot and subchannel, all other CSI-RS resources in the same time slot and subchannel will also be excluded.

[0163] Optionally, in the first structure, a subchannel on a time slot includes multiple CSI-RS resources, and the multiple CSI-RS resources can be used by the same transmitting UE to send CSI-RS, or can be selected by different transmitting UEs to send CSI-RS; accordingly, when the transmitting UE selects CSI-RS resources, including generating a candidate resource set for CSI-RS resources, and / or performing corresponding channel sensing for CSI-RS resources, and / or performing exclusion of CSI-RS resources, it uses CSI-RS resources as units rather than time slots and subchannels as units of time slots and subchannels as in selecting PSSCH resources in FR1 communication.

[0164] Optionally, a subchannel on a time slot includes multiple CSI-RS resources, and the multiple CSI-RS resources can be used by the same transmitting UE to send CSI-RS, and further, the UE can use the same beam to send CSI-RS; the technical effect of this method is to allow the transmitting UE to send repeated CSI-RS through the same beam, and / or allow the receiving UE to switch different receiving beams to measure the performance of different beam pairs. Optionally, if this method is enabled, then in the first structure, there is no need for an AGC symbol before the starting symbol of at least one or each of the multiple CSI-RS resources (but if at least one CSI-RS resource with the earliest time domain position is continuous with other types of channels such as PSCCH in the time domain, the at least one CSI-RS resource may be preceded by an AGC symbol). This is because the receiving power of FR2 will be affected by changes in the spatial transmission direction. Once the transmitting UE switches the transmitting beam, the energy received by the FR2 UE may change accordingly regardless of whether the transmission power changes.

[0165] Optionally, a subchannel on a time slot includes multiple CSI-RS resources, and the multiple CSI-RS resources can be used by the same transmitting UE to send CSI-RS, and further, the UE can use different beams to send CSI-RS; the technical effect of this method is to allow the transmitting UE to quickly perform beam scanning by sending CSI-RS on different transmit beams. Optionally, if this method is enabled, in the first structure, the multiple CSI-RS resources are TDM; and / or, the previous symbol of the starting symbol of at least one or each of the multiple CSI-RS resources is used as AGC. This is because the receiving power of FR2 will be affected by changes in the transmission direction in the spatial domain. Once the transmitting UE switches the transmit beam, the energy received by the FR2 UE may change accordingly regardless of whether the transmission power changes.

[0166] Optionally, a subchannel on a time slot includes multiple CSI-RS resources, and the multiple CSI-RS resources can be used by the same receiving UE to receive CSI-RS, and further, the UE can use the same beam to receive CSI-RS; the technical effect of this method is that the transmitting UE can switch different transmission beams in the same time slot while the receiving UE remains unchanged, so as to easily achieve the effect of traversing possible beam combinations in beam scanning. Optionally, the multiple CSI-RS resources can be TDM and / or comb-based multiplexing, wherein the comb-based multiplexing includes that the OFDM symbols and / or PRBs used by multiple CSI-RS resources are the same, but the positions of the REs used do not overlap.

[0167] The following describes how the first UE uses the first structure based on the first information with reference to a specific example. In the following figures, CSI-RS resources and PSCCH resources are distinguished by patterns, different patterns correspond to different resources, and CSI-RS resources and PSCCH resources with the same pattern are corresponding resources.

[0168] Figure 5a An exemplary embodiment of a first structure is shown, in which the second and third symbols are used for PSCCH resources, and the remaining symbols except AGC, interval, and PSCCH symbols are used for CSI-RS. Figure 5b Another exemplary embodiment of a first structure is shown, with Figure 5a The difference is that there are several symbols used for PSSCH. Figure 5a and Figure 5b In the case of PSCCH, the PSCCH resource is FDM, and the CSI-RS resource is based on comb-tooth multiplexing. The first UE determines that there is no AGC symbol before the PSCCH symbol other than the first PSCCH symbol, and there is no AGC symbol between the PSCCH resource and the CSI-RS resource based on the multiplexing mode of PSCCH and CSI-RS. Figure 5b In the example, according to the fact that the CSI-RS resource and the PSSCH resource are FDM and not all CSI-RS resources correspond to PSSCH resources, it is determined that there are AGC symbols between the PSSCH resource and the CSI-RS resource. According to the fact that the PSCCH is FDM and the CSI-RS resource is not TDM, it is determined that there are no interval symbols between the resources except the last interval.

[0169] Figure 6a Another exemplary embodiment of the first structure is shown, in which the second and third symbols are used for PSCCH resources, and the remaining symbols except AGC, interval, and PSCCH symbols are used for CSI-RS. Figure 6b Another exemplary embodiment of a first structure is shown, with Figure 6a The difference is that there are several symbols used for PSSCH. Figure 6a and Figure 6b In the figure, a subchannel includes only one PSCCH resource, and the PSCCH resource corresponds to multiple CSI-RS resources, and the multiple CSI-RS resources are based on comb-tooth multiplexing; in addition, if the bandwidth of the PSCCH resource is smaller than the bandwidth of the subchannel, the PSCCH can also be FDMed with the PSSCH on the second and third symbols (not shown in the figure). The first UE determines that there is an AGC symbol between the PSCCH and CSI-RS resources based on the TDM of the PSCCH resources and the CSI-RS resources, and that multiple CSI-RS resources can be selected by different UEs for transmission of different beams, and similarly determines that there is an AGC symbol between the PSSCH resources and the CSI-RS resources.

[0170] Figure 7a Another exemplary embodiment of the first structure is shown, in which the symbols other than AGC, interval, and PSCCH symbols are used for CSI-RS. PSCCH resources and CSI-RS resources are sent continuously, and different PSCCH and CSI-RS resource combinations are TDM. The first UE determines that there is an AGC symbol between a TDM combination of a CSI-RS resource and a PSCCH resource and another combination; and determines that there is no interval symbol between a TDM combination of a CSI-RS resource and a PSCCH resource and another combination, based on the UE being configured / preset not to perform a transmit / receive conversion within a time slot. Figure 7b Another exemplary embodiment of a first structure is shown, with Figure 7a The difference lies in that the first UE performs transceiver conversion in a time slot according to the configuration / preset of the first UE, and determines that there is an interval symbol between a combination of a CSI-RS resource and a PSCCH resource of TDM and another combination.

[0171] Figure 8Another exemplary embodiment of the first structure is shown, where the remaining symbols except AGC, interval, and PSCCH symbols are used for CSI-RS. Figure 8 In the figure, a subchannel includes only one PSCCH resource, and the PSCCH resource corresponds to multiple CSI-RS resources, and the multiple CSI-RS resources are TDM. In addition, if the bandwidth of the PSCCH resource is smaller than the bandwidth of the subchannel, the PSCCH can also be FDMed with the PSSCH on the second and third symbols (not shown in the figure); and / or, several symbols can be used for the PSSCH, and the PSSCH and other CSI-RS can be TDMed on different symbols (not shown in the figure). The first UE determines that there are AGC symbols between multiple CSI-RS resources based on the TDM multiplexing mode of the CSI-RS; and determines that there are no gap symbols between multiple CSI-RS resources based on the fact that multiple CSI-RS resources correspond to the same PSCCH. There may be no AGC symbol between the PSCCH resource and the first adjacent CSI-RS resource, corresponding to the situation indicated in the first information and / or the first UE selects the PSCCH and the first CSI-RS to use the same transmission beam for transmission; there may also be an AGC symbol, corresponding to the situation that the first information does not specify whether the transmission beams of the PSCCH and the first CSI-RS need to be the same, and / or the first UE selects different transmission beams. Figure 8 The corresponding first structure also includes PSSCH resources. Based on whether the transmission beams of the PSSCH resources and its adjacent TDM CSI-RS resources and / or PSCCH resources are defined as the same in the first information, and / or whether the first UE has selected the same transmission beam, it is similarly determined whether there are AGC symbols between the PSSCH resources and other adjacent resources.

[0172] Optionally, the first UE sends at least one of a PSCCH, a CSI-RS, and a signal / channel corresponding to an AGC using a first structure, and indicates at least one of the following information about the first structure in an SCI:

[0173] A resource corresponding to an AGC, further indicating whether at least one symbol is used for the AGC, and / or indicating a position of at least one AGC symbol;

[0174] A resource corresponding to the interval, further indicating whether at least one symbol is used for the interval, and / or indicating a position of at least one interval symbol;

[0175] information about at least one PSCCH resource, where the information may correspond to at least one item of the information about the PSCCH resource in the first information;

[0176] Information about at least one CSI-RS resource, where the information may correspond to at least one item of the information about the CSI-RS resource in the first information.

[0177] The SCI includes 1st-order SCI and / or 2nd-order SCI, 1st-order SCI is sent in PSCCH, and 2nd-order SCI is sent in PSSCH. Alternatively, the SCI includes one SCI (ie, not divided into 1st-order and 2nd-order) and is sent in PSCCH.

[0178] Since there may be multiple PSCCH resources in a time slot in the first structure, if the UE performs blind detection on the multiple PSCCH resources, the blind detection overhead will be greatly increased. The following provides some methods to reduce the increase of blind detection overhead.

[0179] Optionally, the first UE indicates information about at least one PSCCH resource, including: indicating in the PSCCH with the earliest time domain position in a time slot whether there are other PSCCH resources in the time slot used for transmission of the first UE, and / or indicating the positions of other PSCCH resources in the time slot.

[0180] Optionally, the first UE selects multiple PSCCH resources in the first structure to send PSCCH, including selecting a PSCCH resource with the earliest time domain position or a PSCCH resource preset in multiple PSCCH resources, and selecting at least one other PSCCH resource for sending PSCCH. The first UE may indicate the positions of other PSCCH resources used for transmission in the PSCCH on ...

[0181] Optionally, the first UE obtains a resource set in the resource pool based on the first information; if multiple PSCCHs need to be sent in one time slot, a transmission resource is selected from the set; otherwise, if one PSCCH needs to be sent in one time slot, a resource is selected from other resources outside the set in the resource pool or a resource is selected from all resources in the resource pool. Correspondingly, the second UE obtains the resource set in the resource pool based on the first information, blindly checks whether PSCCH is transmitted on all PSCCH resources corresponding to the first structure in the set, and blindly checks whether PSCCH is transmitted on the earliest PSCCH resource in the time domain position of each resource or a preset PSCCH resource among multiple PSCCH resources on other resources outside the set in the resource pool. Optionally, this method is used when the PSCCH corresponding to the beam is initially acquired and / or transmitted during beam failure.

[0182] The technical effect of the above-mentioned methods is that the UE does not need to blindly detect whether each PSCCH resource in a time slot is actually used for PSCCH transmission, but can only detect on the PSCCH resources indicated as being used for actual transmission according to the instructions of the first UE.

[0183] Based on the first information, the first UE uses the first structure to send a signal / channel, and also includes: based on the first information and / or the first structure, the first UE selects a transmit beam for sending at least one of the signals / channels. In some embodiments, when a symbol is a copy of another symbol, the one symbol uses the same transmit beam as the other symbol. For example, the AGC symbol before the PSCCH (the symbol is a copy of the first symbol of the PSCCH) uses the same transmit beam as the PSCCH; the same applies to the AGC symbols before the CSI-RS, PSFCH, and PSSCH.

[0184] Optionally, based on the first structure, a time slot and a subchannel include multiple CSI-RS resources, at least one PSSCH resource and at least one PSCCH resource. The first UE selects at least one CSI-RS resource for sending CSI-RS and / or selects one PSSCH resource for sending PSSCH, and selects at least one PSCCH resource for sending SCI carrying control information of the CSI-RS and / or PSSCH. Optionally, the UE selects a transmit beam of the PSCCH, including at least one of the following methods:

[0185] Using a preset / configured beam, which may correspond to the second UE and / or be provided by the second UE;

[0186] If the first UE sends multiple CSI-RSs on multiple CSI-RS resources using the same beam, and / or sends at least one CSI-RS and PSSCH on at least one CSI-RS resource and on a PSSCH resource using the same beam, send a PSCCH on at least one PSCCH resource using the same beam;

[0187] If the first UE sends multiple CSI-RSs on multiple CSI-RS resources using different beams, and / or sends at least one CSI-RS and PSSCH on at least one CSI-RS resource and on a PSSCH resource using different beams, the transmission beam of the PSCCH is selected using at least one of the following methods, and the PSCCH may be a PSCCH associated with the multiple CSI-RSs and / or the at least one CSI-RS and PSSCH: using a preset / configured beam, which may be a preset beam corresponding to one PSCCH scheduling multiple CSI-RSs and / or scheduling CSI-RS and PSSCH The method comprises: providing a predetermined / configured beam, and / or a preset / configured corresponding broadcast / multicast beam; if the first UE and the second UE have selected a beam for bypass communication (e.g., a beam for sending PSSCH), using the selected beam; if the first UE is configured or determines according to a preset criterion that there is a correspondence between the resource position and the transmission beam, wherein the resource position includes a time slot index, an index of a CSI-RS resource in a time slot, a CSI-RS resource and / or a time domain and / or frequency domain position of a time slot and / or a subchannel where the CSI-RS resource is located, then selecting a beam for sending PSCCH based on the selected transmission resource and the correspondence. Optionally, this method is used when a PSCCH resource is included in the first structure, and / or when the first UE uses a PSCCH resource to send a PSCCH corresponding to the above-mentioned CSI-RS and / or PSCCH;

[0188] If the first UE sends multiple CSI-RSs on multiple CSI-RS resources using different beams, and / or sends at least one CSI-RS and PSSCH on at least one CSI-RS resource and on PSSCH resources using different beams, then multiple PSCCHs are sent to respectively indicate control information and / or PSSCHs of multiple CSI-RSs, and each PSCCH is sent on multiple PSCCH resources using the same transmission beam as the CSI-RS and / or PSSCH associated with it; optionally, this method is used when the first structure includes multiple PSCCH resources, and / or when the first UE uses multiple PSCCH resources in the same time slot and / or subchannel, and / or in different time slots and / or subchannels to send PSCCHs corresponding to the above-mentioned CSI-RS and / or PSCCH.

[0189] Optionally, based on the first structure, a time slot and subchannel includes at least one CSI-RS resource, at least one PSSCH resource and at least one PSCCH resource, wherein the CSI-RS resource and the PSSCH resource and / or PSCCH resource are TDM and / or FDM.

[0190] Optionally, if the first UE uses different beams to send the CSI-RS and the PSSCH, and there is overlap between the time domain resources of the used CSI-RS and the time domain resources of the PSSCH, the first UE uses at least one of the following methods to send the CSI-RS and the PSSCH:

[0191] Terminate the transmission of CSI-RS on the overlapping time domain resources; for example, do not map CSI-RS to RE on the overlapping time domain resources; further, for the case where CSI-RS and PSSCH are multiplexed in the same time slot, select different CSI-RS resources and / or different CSI-RS mapping modes based on whether the two transmit beams are the same;

[0192] terminating the transmission of the PSSCH on the overlapping time domain resources; for example, not matching the PSSCH rate to the overlapping time domain resources, or mapping the PSSCH to a partial puncture on the overlapping time domain resources; further, for the case where the CSI-RS and the PSSCH are multiplexed in the same time slot, based on whether the transmit beams of the two are the same, selecting different transmission parameters of the PSSCH, including at least one of TBS and MCS; accordingly, when the second UE receives the CSI-RS and the PSSCH multiplexed in the same time slot, based on whether the transmit beams of the two are the same, using the corresponding different transmission parameters of the PSSCH to decode the PSSCH;

[0193] On the overlapping time domain resources, the CSI-RS is sent with the transmission beam of the PSSCH, or the PSSCH is sent with the transmission beam of the CSI-RS.

[0194] Optionally, the use of at least one of the above methods is priority-based. For example, when the physical layer priority of CSI-RS is lower than the physical layer priority of PSSCH, and / or when the physical layer priority of PSSCH exceeds a threshold value (the method can be understood as the priority of CSI-RS being preset to the threshold value), the transmission of CSI-RS on overlapping time domain resources is terminated or the CSI-RS is transmitted with the transmission beam of PSSCH, otherwise the transmission of PSSCH on overlapping time domain resources is terminated or the PSSCH is transmitted with the transmission beam of CSI-RS.

[0195] Based on the first information, the first UE sends a signal / channel using a first structure, further comprising: indicating the selected at least one transmit beam in physical layer signaling and / or high layer signaling. Further, at least one of the following is included:

[0196] Indicating in the high-layer signaling the selected at least one PSCCH transmit beam, which may be a PSCCH transmit beam used after a given time point, the given time point may be explicitly indicated in the high-layer signaling, and / or calculated by using a reference time point and an offset, wherein the reference time point may be a time point explicitly indicated in the high-layer signaling, or a time point provided in the first information, or a time point when the high-layer signaling is received, and the offset may be explicitly indicated in the high-layer signaling, or provided in the first information;

[0197] Indicating at least one selected PSSCH transmit beam in the SCI may be the transmit beam of the PSSCH associated with the SCI, and / or the transmit beam of the PSSCH on the resources reserved in the SCI, and / or the transmit beam used by the PSSCH after a given time point. The transmit beam used by the PSSCH after a given time point is similar to the method in which the high layer indicates the transmit beam of the PSCCH after a given time point, but the information such as the time point and offset provided by the high layer signaling in the method may be provided by the physical layer signaling in this method;

[0198] The beam of at least one PSFCH selected indicated in the SCI may be the beam that the PSFCH corresponding to the PSSCH associated with the SCI should use, and / or the beam that the PSFCH corresponding to the PSSCH on the resources reserved in the SCI should use, and / or the beam used by the PSFCH corresponding to the PSSCH after a given time point. Among them, since the first UE is the transmitting UE of the PSSCH and the PSFCH is received by the first UE, the beam indicated for the use of the PSFCH includes the beam indicated for the first UE to receive the PSFCH and / or the beam indicated for the second UE to send the PSFCH. Further, since the UE may not directly indicate its receiving beam, the first UE may indicate the transmitting beam corresponding to at least one receiving beam through the correspondence between the transmitting beam and the receiving beam, rather than indicating the receiving beam itself. Accordingly, the second UE may select the transmitting beam corresponding to the receiving beam to send the PSFCH based on the receiving beam of the second UE corresponding to the transmitting beam indicated by the first UE through the correspondence between the transmitting beam and the receiving beam. The first UE indicates the beam of the PSFCH including explicit indication and implicit indication, and the implicit indication includes determining the beam of the PSFCH based on beams of other signals / channels according to a predetermined criterion, for example, the receiving beam used by the first UE to receive the PSFCH is the receiving beam corresponding to the transmitting beam of the first UE to send the PSSCH and / or CSI-RS; the corresponding relationship may be preset / configured, or indicated by the first UE and / or the second UE to the other party in a QCL manner;

[0199] At least one selected CSI-RS transmission beam is indicated in the SCI, which may be a transmission beam of the CSI-RS associated with the SCI, and / or a transmission beam of the CSI-RS on the resources reserved in the SCI, and / or a transmission beam used by the CSI-RS after a given time point. The transmission beam used by the CSI-RS after a given time point is similar to the method in which the high layer indicates the CSI-RS transmission beam after a given time point, but the information such as the time point and offset provided by the high layer signaling in the method may be provided by the physical layer signaling in this method.

[0200] In the above exemplary embodiment, the first UE, as the transmitting UE of CSI-RS, obtains the first information and determines a physical layer structure (referred to as the first structure) based on the first information, sends CSI-RS based on the first structure, and may also send other signals / channels such as PSCCH, PSSCH, DMRS, etc. Correspondingly, the second UE, as the receiving UE of CSI-RS, also needs to determine the first structure used by the first UE, receives CSI-RS based on the first structure, and may also receive other signals / channels such as PSCCH, PSSCH, DMRS, etc.

[0201] In an exemplary embodiment, the second UE obtains the first information, and / or obtains the first information indicated by the first UE in the SCI and / or high-level signaling, and determines the first structure based on the first information. The method for the second UE to obtain the first information and the method for the second UE to determine the first structure based on the first information are similar to the method performed by the first UE, for example, the second UE obtains the first information through UE-specific RRC signaling, resource pool configuration information, preset criteria, etc.; for another example, the second UE determines the physical layer structure of the AGC symbol, the resource for the interval, the CSI-RS resource, the PSCCH resource, etc. in the first structure based on the multiplexing mode between different signals / channels indicated in the first information, the location and / or size of the resources of the PSCCH and / or CSI-RS (or other bypass signals / channels), etc. The method for determining and using the first structure performed by the first UE in the above embodiments can be similarly used for the second UE; however, if the information related to the transmission power of the first UE is not indicated to the second UE, the transmission power may not be used by the second UE as the first information and / or for determining the first structure.

[0202] In addition, the second UE may also obtain the second information based on the information indicated by the first UE in its high-level signaling (e.g., PC5 RRC configuration information between UEs) and / or the information indicated in the SCI (e.g., in the method executed by the first UE, the information about the first structure indicated by the first UE in the SCI), and determine the first structure based on the second information. Further, the second UE obtains the information indicated by the first UE in its high-level signaling, and / or receives the SCI sent by the first UE and obtains the information indicated in the SCI, and determines the first structure based on the second information, including determining the structure of the resources corresponding to the AGC, the resources corresponding to the interval, the PSCCH and / or the CSI-RS resources, etc.

[0203] In addition, the second UE may also determine the beam to be used when receiving transmissions from the first UE based on information indicated by the first UE in its high-layer signaling and / or beam-related information indicated in the SCI (which may be information about the first UE's transmit beam). Further, when the first UE indicates different transmit beams for multiple bypass signals / channels, the second UE selects different receive beams accordingly, and uses corresponding receive beams on resources corresponding to the multiple bypass signals / channels based on the first structure to receive transmissions from the first UE.

[0204] Corresponding to the transmitting UE selecting the transmitting beam, the receiving UE also needs to select the receiving beam and use the beam to receive the bypass transmission. Since different bypass communication links usually face different air interface environments and different transmitting UE geographical locations, the receiving beams corresponding to different links selected by the receiving UE are usually different. Unlike the low-frequency environment where the receiving UE can simultaneously receive bypass transmissions corresponding to different communication links, in the high-frequency environment, a method is also required for the receiving UE to determine the receiving beam when it needs to simultaneously receive multiple bypass transmissions corresponding to different receiving beams.

[0205] In an exemplary embodiment, when the second UE receives a side channel signal / channel corresponding to a different receive beam on the same time domain resource, the second UE determines the received side channel signal / channel according to at least one of the following:

[0206] The priority of the bypass signal / channel, and / or the priority of the receiving beam corresponding to the bypass signal / channel; further, when a certain receiving beam corresponds to multiple bypass signals / channels, the priority of the receiving beam is the highest priority corresponding to the multiple bypass signals / channels; for example, the second UE uses the receiving beam corresponding to the bypass signal / channel with the highest priority or uses the receiving beam with the highest priority to receive the bypass signal / channel, and / or the bypass signal / channel received by the second UE includes the bypass signal / channel with the highest priority corresponding to the multiple bypass signals / channels, and may also include other bypass signals / channels corresponding to the same receiving beam as the bypass channel with the highest priority;

[0207] The number of bypass signals / channels corresponding to a receiving beam; for example, the second UE uses the receiving beam with the largest number of corresponding bypass signals / channels to receive the bypass signals / channels, and / or the bypass signals / channels received by the second UE include the bypass signals / channels corresponding to the receiving beam with the largest number of corresponding bypass signals / channels.

[0208] When the above methods are used in combination, a specific example is that the UE selects the receiving beam corresponding to the bypass signal / channel with the highest priority to receive the bypass signal / channel with the highest priority, and when there are multiple bypass signals / channels with the highest priority, selects the receiving beam with the largest number of bypass signals / channels corresponding to the highest priority to receive the bypass signal / channel with the highest priority; and the UE can also receive other bypass signals / channels corresponding to the receiving beam.

[0209] In another exemplary embodiment, when the bypass signal / channel is PSFCH, the second UE is HARQ-ACK feedback information or inter-UE coordination (IUC) information according to the content of the information indicated in PSFCH. Further, HARQ-ACK feedback information is received preferentially, and if there is no HARQ-ACK feedback information, IUC information is received. This method can be combined with the other methods mentioned above, for example, HARQ-ACK feedback information and IUC information corresponding to the bypass signal / channel with the highest priority and / or the PSFCH with the highest priority are received preferentially, and when the HARQ-ACK feedback information and IUC information corresponding to the signal / channel and / or PSFCH are different, the HARQ-ACK feedback information corresponding to the signal / channel and / or PSFCH is received preferentially, and if there is no HARQ-ACK feedback information, the IUC information corresponding to the signal / channel and / or PSFCH is received. After determining at least one PSFCH received, other PSFCHs corresponding to the same beam as the PSFCH can also be received.

[0210] In an exemplary embodiment, the second UE needs to receive multiple PSFCHs simultaneously on the PSFCH resources, and the multiple PSFCHs correspond to different receiving beams and / or the PSSCHs corresponding to the multiple PSFCHs use different transmitting beams. The second UE determines which PSFCHs to receive based on the priority of the PSFCHs to be received and / or the priority of the PSSCHs corresponding to the multiple PSFCHs, and / or determines the PSFCH receiving beam to be used and uses the beam to receive the PSFCH. In this embodiment, the UE determines the location of the PSFCH resources to be received and whether simultaneous reception is required through the transmitted PSSCH.

[0211] In another exemplary embodiment, the second UE is expected to receive multiple PSCCHs and / or multiple PSSCHs simultaneously on PSCCH and / or PSSCH resources, and the multiple PSCCHs and / or multiple PSSCHs correspond to different receiving beams. The second UE determines which PSCCHs and / or PSSCHs to receive based on the priority of the PSCCH and / or PSSCH, and / or determines the PSCCH and / or PSSCH receiving beam to be used and uses the beam to receive the PSCCH and / or PSSCH. In this embodiment, the UE determines the location of the PSCCH and / or PSSCH resources to be received and whether they need to be received simultaneously through the indication of other UEs in the high-level signaling (for example, information of the configuration authorization sent by a bypass UE to the second UE, similar to the information of the configuration authorization used to indicate the bypass transmission in the downlink signaling) and / or the indication in the SCI (for example, it can be information on the reserved future resources in the SCI); further, the priority of the PSCCH and / or PSSCH can also be indicated in the above-mentioned high-level signaling / SCI.

[0212] In another exemplary embodiment, the second UE is expected to receive at least one PSSCH and at least one CSI-RS on the PSSCH resource, and the at least one PSSCH and at least one CSI-RS correspond to different receiving beams. The second UE determines which PSSCH and / or CSI-RS to receive according to the priority of the PSSCH and / or CSI-RS, and / or determines the PSSCH and / or CSI-RS receiving beam to be used and uses the beam to receive the PSSCH and / or CSI-RS. In this embodiment, the UE determines the location of the PSSCH and / or CSI-RS resources to be received and whether they need to be received simultaneously according to the indication of other UEs in the high-level signaling / SCI (similar to the previous method); wherein the SCI may be the previously received SCI indicating the reservation of the PSSCH and / or CSI-RS transmission, or may be the SCI associated with the PSSCH and / or CSI-RS transmission, for example, the SCI transmitted in the same time slot as the PSSCH and / or CSI-RS. Further, when the second UE determines how to receive according to the priority of PSSCH and / or CSI-RS, the priority of PSSCH and / or CSI-RS may also be indicated in the above-mentioned high-level signaling and / or SCI, or may be preset, for example, the priority of CSI-RS is a preset value; or the priority of PSSCH is determined to be higher / lower than CSI-RS based on whether the priority of PSSCH is higher than the sixth threshold and / or lower than the seventh threshold (which may also be described as determining to give priority to receiving PSSCH or to give priority to receiving CSI-RS), and the sixth threshold and / or seventh threshold may be understood as corresponding to the priority of CSI-RS.

[0213] Fig. 9 is a block diagram illustrating a node device according to an example embodiment of the present disclosure.

[0214] like Fig. 9 As shown, the node device 900 includes a transceiver 910 and a processor 920 .

[0215] The transceiver 910 is configured to transmit and / or receive at least one of CSI-RS, PSCCH, PSSCH, and PSFCH.

[0216] The processor 920 is coupled to the transceiver 910 and is configured to execute the instructions so that the node device 900 executes any of the aforementioned methods. The processor may also be replaced by a controller.

[0217] Herein, UE may refer to any terminal with wireless communication capability, including but not limited to mobile phones, cellular phones, smart phones or personal digital assistants (PDAs), portable computers, image capture devices such as digital cameras, gaming devices, music storage and playback devices, and any portable unit or terminal with wireless communication capability, or Internet facilities that allow wireless Internet access and browsing, etc. The transceiver (machine) here may be of any type suitable for the technical environment of this article, and may be implemented using any suitable data storage technology, including but not limited to semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory, and removable memory. The processor here may be of any type suitable for the technical environment of this article, including but not limited to one or more of the following: general-purpose computers, special-purpose computers, microprocessors, digital signal processors DSPs, and processors based on multi-core processor architectures.

[0218] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0219] It will be appreciated by those skilled in the art that the present invention includes devices for performing one or more of the operations described in the present application. These devices may be specially designed and manufactured for the desired purpose, or may include known devices in general-purpose computers. These devices have computer programs stored therein, which are selectively activated or reconfigured. Such computer programs may be stored in a device (e.g., computer) readable medium or in any type of medium suitable for storing electronic instructions and coupled to a bus, respectively, the computer readable medium including but not limited to any type of disk (including floppy disk, hard disk, optical disk, CD-ROM, and magneto-optical disk), ROM (Read-Only Memory), RAM (Random Access Memory), EPROM (Erasable Programmable Read-Only Memory), EEPROM (Electrically Erasable Programmable Read-Only Memory), flash memory, magnetic card or optical card. That is, the readable medium includes any medium that stores or transmits information in a readable form by a device (e.g., computer).

[0220] Those skilled in the art will appreciate that each block in these structure diagrams and / or block diagrams and / or flow charts and combinations of blocks in these structure diagrams and / or block diagrams and / or flow charts can be implemented using computer program instructions. Those skilled in the art will appreciate that these computer program instructions can be provided to a general-purpose computer, a professional computer, or a processor of other programmable data processing methods to implement, thereby executing the scheme specified in the block or multiple blocks of the structure diagram and / or block diagram and / or flow chart disclosed in the present invention through the processor of the computer or other programmable data processing method.

[0221] Those skilled in the art will appreciate that the various operations, methods, steps, measures, and schemes discussed in the present invention may be alternated, modified, combined, or deleted. Further, other steps, measures, and schemes in the various operations, methods, and schemes discussed in the present invention may also be alternated, modified, rearranged, decomposed, combined, or deleted. Further, the steps, measures, and schemes in the prior art that are similar to those disclosed in the present invention may also be alternated, modified, rearranged, decomposed, combined, or deleted.

[0222] The above descriptions are only some embodiments of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method performed by a first node in a communication system, the method comprising: Acquire first information, wherein the first information includes information related to a channel state information reference signal CSI-RS resource; and Based on the first information, sending a CSI-RS, When the information related to the CSI-RS resource indicates that the multiplexing mode between the CSI-RS resources includes time division multiplexing, an adjacent symbol before the first symbol of each time division multiplexed CSI-RS resource is a copy of the first symbol of the time division multiplexed CSI-RS resource, and / or When all CSI-RS resources are used by the first node and the first node uses the same beam for transmission on the CSI-RS resources, an adjacent symbol before the first symbol of the CSI-RS resources is not a copy of other symbols.

2. The method according to claim 1, wherein: The first information also includes information related to physical bypass control channel PSCCH resources, and the method also includes sending the PSCCH based on the first information; When the information related to the PSCCH resource indicates that the multiplexing mode between the PSCCH resources includes time division multiplexing, an adjacent symbol before the first symbol of each time division multiplexed PSCCH resource is a copy of the first symbol of the time division multiplexed PSCCH resource; and / or When the information related to the PSCCH resources indicates that the multiplexing mode between PSCCH resources includes time division multiplexing, and the time division multiplexed PSCCH resources are all used by the first node, an adjacent symbol before the first symbol of the time division multiplexed PSCCH resources is not a copy of other symbols.

3. The method according to claim 1, wherein: The first information also includes information related to physical bypass feedback channel PSFCH resources, and the method also includes sending the PSFCH based on the first information; Wherein, when the information related to the PSFCH resource indicates that the multiplexing mode between the PSFCH resources includes time division multiplexing, an adjacent symbol before the first symbol of each time division multiplexed PSFCH resource is a copy of the first symbol of the time division multiplexed PSFCH resource; and / or When the physical bypass shared channel PSSCH resource corresponding to the PSFCH resource includes different PSSCH resources, an adjacent symbol before the first symbol of the PSFCH resource is a copy of the first symbol of the PSFCH resource.

4. The method according to claim 1 or 2, wherein: When the first information indicates that the multiplexing method between CSI-RS resources and PSCCH resources includes time division multiplexing, if any one of the CSI-RS resources corresponds to at least one of the PSCCH resources, and any one of the PSCCH resources corresponds to at least one of the CSI-RS resources, then an adjacent symbol before the first symbol of the CSI-RS resource is not a copy of other symbols.

5. The method according to claim 1, wherein the first information further comprises information related to physical bypass shared channel (PSSCH) resources, and the method further comprises sending the PSSCH based on the first information; in, When both CSI-RS resources and PSSCH resources are used by the first node, and the first node uses the same beam for transmission on the CSI-RS resources and the PSSCH resources, an adjacent symbol before the first symbol of the CSI-RS resource is not a copy of other symbols.

6. The method according to any one of claims 1 to 5, wherein: Also included is that when the first condition is met, an adjacent symbol before the first symbol of the CSI-RS resource is not a copy of other symbols; The first condition includes: The CSI-RS transmission power is the same as the PSCCH transmission power; The CSI-RS transmission power and / or PSCCH transmission power does not reach the maximum transmission power; The value of the relevant parameter used to calculate the CSI-RS transmission power and / or the PSCCH transmission power does not exceed the first threshold or does not meet the predetermined threshold range; The CSI-RS transmission power and / or the PSCCH transmission power is lower than a second threshold or meets a predetermined threshold range; The frequency domain size of the CSI-RS resource is lower than a third threshold; The ratio of the frequency domain size of the CSI-RS resource to the frequency domain size of the PSCCH resource is lower than a fourth threshold.

7. The method according to any one of claims 1 to 6, wherein: When the time domain size of the CSI-RS resource exceeds a fifth threshold, an adjacent symbol before the first symbol of the CSI-RS resource is not a copy of other symbols.

8. The method according to claim 1, wherein: When the information related to the CSI-RS resource indicates that the multiplexing mode between the CSI-RS resources includes time division multiplexing, an adjacent symbol after the last symbol of each time division multiplexed CSI-RS resource is used for spacing; and / or In which, when the information related to the CSI-RS resource indicates that the multiplexing method between CSI-RS resources includes time division multiplexing, and the multiplexing method between the PSCCH / PSSCH / PSFCH resources corresponding to the time division multiplexed CSI-RS resources includes time division multiplexing, an adjacent symbol after the last symbol of each time division multiplexed CSI-RS resource is used for interval.

9. The method according to claim 1, wherein: The first information further includes information related to PSCCH resources, and the method further includes sending the PSCCH based on the first information; When the information related to the PSCCH resources indicates that the multiplexing mode between the PSCCH resources includes time division multiplexing, an adjacent symbol after the last symbol of each time division multiplexed PSCCH resource is used for spacing.

10. The method according to claim 1, wherein: The first information also includes information related to physical bypass feedback channel PSFCH resources, and the method also includes sending the PSFCH based on the first information; When the information related to the PSFCH resources indicates that the multiplexing mode between the PSFCH resources includes time division multiplexing, an adjacent symbol after the last symbol of each time division multiplexed PSFCH resource is used for interval.

11. The method according to any one of claims 1, wherein: The first information further includes information related to a physical bypass shared channel PSSCH resource, and the method further includes sending the PSSCH based on the first information; When the information related to the PSSCH resources indicates that the multiplexing mode between the PSSCH resources includes time division multiplexing, an adjacent symbol after the last symbol of each time division multiplexed PSSCH resource is used for spacing.

12. The method according to claim 1, further comprising sending bypass control information SCI, wherein the SCI indicates at least one of the following information: Information about resources used as copies of other symbols; Resource-related information for intervals; Information related to PSCCH resources; and Information related to CSI-RS resources.

13. The method according to claim 1, further comprising: Determine a transmission beam for sending at least one of PSCCH, PSSCH, and CSI-RS, and use the determined transmission beam to send at least one of the PSCCH, PSSCH, and CSI-RS.

14. The method according to claim 13, wherein: Determining a transmit beam for transmitting the PSCCH includes at least one of the following: Determining a preset / configured beam as a transmit beam for transmitting a PSCCH; If the first node uses the same beam to send multiple CSI-RSs on multiple CSI-RS resources, and / or uses the same beam to send at least one CSI-RS and PSSCH on at least one CSI-RS resource and on a PSSCH resource, determining the same beam as a transmit beam for sending the PSCCH; The PSCCH is a PSCCH associated with the multiple CSI-RSs and / or the at least one CSI-RS and PSSCH.

15. The method according to claim 13, wherein: If the first node uses different beams to send multiple CSI-RSs on multiple CSI-RS resources, and / or uses different beams to send at least one CSI-RS and PSSCH on at least one CSI-RS resource and on a PSSCH resource, and the first node uses one PSCCH resource to send a PSCCH, at least one of the following methods is used to determine a transmit beam for sending the PSCCH: Determining a preset / configured beam as a transmit beam for transmitting a PSCCH; Determine that the beam for bypass communication selected by the first node and the second node receiving the PSCCH is a transmit beam for transmitting the PSCCH; as well as If the first node is configured or determines according to a preset criterion that there is a correspondence between the position of the PSCCH resource and the transmit beam, determining the transmit beam for the PSCCH based on the PSCCH resource and the correspondence; The PSCCH is a PSCCH associated with the multiple CSI-RSs and / or the at least one CSI-RS and PSSCH.

16. The method according to claim 13, wherein: If the first node uses different beams to send multiple CSI-RSs on multiple CSI-RS resources, and / or uses different beams to send at least one CSI-RS and PSSCH on at least one CSI-RS resource and on PSSCH resources, and the first node uses multiple PSCCH resources to send PSCCH, then multiple PSCCHs are sent to indicate control information and / or PSSCHs of multiple CSI-RSs respectively, and each PSCCH is sent on multiple PSCCH resources using the same transmission beam as its associated CSI-RS and / or PSSCH.

17. The method according to claim 13, wherein: If the first node uses different beams to send CSI-RS and PSSCH, and there is overlap between the time domain resources of the used CSI-RS and the time domain resources of the PSSCH, the first node sends the CSI-RS and the PSSCH in at least one of the following ways based on the physical layer priorities of the CSI-RS and the PSSCH: Suspend the transmission of CSI-RS on the overlapping time domain resources; Suspend the transmission of PSSCH on the overlapping time domain resources; On the overlapping time domain resources, the CSI-RS is transmitted using the transmission beam used for the PSSCH, or the PSSCH is transmitted using the transmission beam used for the CSI-RS.

18. The method according to claim 13, further comprising indicating at least one of the following in SCI and / or higher layer signaling: Indicating in higher layer signaling the transmit beam determined for transmitting the PSCCH; Indicating in the SCI the transmit beam determined for transmitting the PSSCH; Indicating in the SCI the transmission beam determined for transmitting the PSFCH; and The transmission beam determined for transmitting the CSI-RS is indicated in the SCI.

19. The method according to claim 1, wherein: When the first information indicates that a time unit includes a plurality of PSCCH resources, the method further includes determining the PSCCH resource and / or sending the PSCCH using at least one of the following methods: Indicating in a PSCCH with the earliest time domain position in a time unit whether there are other PSCCH resources in the time unit used for transmission by the first node, and / or indicating the positions of other PSCCH resources in the time unit; Selecting a PSCCH resource with the earliest time domain position or a preset PSCCH resource among multiple PSCCH resources to send the PSCCH, and selecting at least one other PSCCH resource to send the PSCCH; Based on the first information, a resource set in the resource pool is obtained, and when multiple PSCCHs are sent in one time unit, a PSCCH resource is selected from the resource set, and when one PSCCH is sent in one time unit, a PSCCH resource is selected from the resources in the resource pool except the resource set.

20. A node device, comprising: Transceiver; as well as A processor is coupled to the transceiver and configured to execute the method of any one of claims 1-19.

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