KR-102962431-B1 - METHOD, COMMUNIDATION DEVICE AND STORAGE MEDIUM FOR TRANSMITTING SIDELINK CHANNEL, AND METHOD, COMMUNICATION AND STORAGE MEDIUM FOR RECEIVING SIDELINK CHANNEL

KR102962431B1KR 102962431 B1KR102962431 B1KR 102962431B1KR-102962431-B1

Abstract

In this specification, PSCCH is mapped to the lowest subchannel among the subchannels for PSSCH. If the lowest subchannel is associated with interlacing, the PSCCH is mapped to resource blocks within the lowest subchannel in the frequency domain, first in increasing order of the interlacing index and then in increasing order of the resource block index.

Inventors

김태형

Assignees

현대모비스 주식회사

Dates

Publication Date: 20260511
Application Date: 20230406

Claims (16)

In a wireless communication system, when a communication device transmits a sidelink channel, Map a physical sidelink control channel (PSCCH) to the lowest subchannel among at least one subchannel; and It includes transmitting the PSCCH on at least one mapped subchannel, and The above at least one subchannel is indexed in increasing order of interlaced index within each resource block set, and Mapping the above PSCCH to the above lowest subchannel is: Based on the fact that at least one subchannel is associated with one or more interlacings within a set of resource blocks, the method comprises mapping the PSCCH to the RBs within the lowest subchannel in increasing order of resource block (RB) indices corresponding to the first interlacing index in the frequency domain. Sidelink channel transmission method.
In paragraph 1, It includes receiving BWP settings regarding the bandwidth part (BWP) for the sidelink, and The above BWP settings include subchannel-related settings, and The above subchannel related settings include information regarding the number of subchannels within the above BWP and information regarding the number of contiguous RBs per subchannel, Sidelink channel transmission method.
In paragraph 2, The above BWP setting further includes information regarding the number of RBs for the above PSCCH transmission, Sidelink channel transmission method.
In paragraph 3, The number of RBs within the lowest subchannel mentioned above is greater than the number of RBs for PSCCH transmission, Sidelink channel transmission method.
In paragraph 1, Based on the fact that interlaced-based frequency domain resource allocation is set for a frequency band including the above-mentioned at least one subchannel, the method includes determining that the above-mentioned at least one subchannel is associated with one or more interlacings. Sidelink channel transmission method.
In paragraph 1, Each of the above one or more interlacs consists of a plurality of non-contiguous RBs in the frequency domain, Sidelink channel transmission method.
In a wireless communication system, when a communication device receives a sidelink channel, Includes receiving a physical sidelink control channel (PSCCH) within a subchannel, Receiving the above PSCCH is: Based on the assumption that at least one subchannel is associated with one or more interlacings within a resource block set, the method includes receiving the PSCCH under the assumption that the PSCCH is mapped to the RBs within the lowest subchannel among at least one subchannel in the frequency domain in increasing order of resource block (RB) indices corresponding to the first interlacing index. The above at least one subchannel is indexed in increasing order of interlaced index within each resource block set, How to receive Sidelink channels.
In Paragraph 7, It includes receiving BWP settings regarding the bandwidth part (BWP) for the sidelink, and The above BWP settings include subchannel-related settings, and The above subchannel related settings include information regarding the number of subchannels within the above BWP and information regarding the number of contiguous RBs per subchannel, How to receive Sidelink channels.
In paragraph 8, The above BWP setting further includes information regarding the number of RBs for the above PSCCH transmission, How to receive Sidelink channels.
In Paragraph 9, The number of resource blocks within the lowest subchannel mentioned above is greater than the number of RBs for the PSCCH transmission, How to receive Sidelink channels.
In Paragraph 7, Based on the fact that interlaced-based frequency domain resource allocation is set for a frequency band including the above-mentioned at least one subchannel, the method includes determining that the above-mentioned at least one subchannel is associated with one or more interlacings. How to receive Sidelink channels.
In Paragraph 7, Each of the above one or more interlacs consists of a plurality of non-contiguous RBs in the frequency domain, How to receive Sidelink channels.
In a wireless communication system, when a communication device transmits a sidelink channel, At least one transmitter/receiver; At least one processor; and It includes at least one memory connected to the at least one processor so as to be operable, and storing instructions that cause the at least one processor to perform operations when executed, and the operations are: Map a physical sidelink control channel (PSCCH) to the lowest subchannel among at least one subchannel; and It includes transmitting the PSCCH on at least one mapped subchannel, and The above at least one subchannel is indexed in increasing order of interlaced index within each resource block set, and Mapping the above PSCCH to the above lowest subchannel is: Based on the fact that at least one subchannel is associated with one or more interlacings within a set of resource blocks, the method comprises mapping the PSCCH to the RBs within the lowest subchannel in increasing order of resource block (RB) indices corresponding to the first interlacing index in the frequency domain. Communication device.
A computer-readable non-transitory storage medium comprising at least one computer program that causes at least one processor to perform operations, wherein the operations are: Map a physical sidelink control channel (PSCCH) to the lowest subchannel among at least one subchannel; and It includes transmitting the PSCCH on at least one mapped subchannel, and The above at least one subchannel is indexed in increasing order of interlace index within each Resource Block Set, and mapping the PSCCH to the lowest subchannel is: Based on the fact that at least one subchannel is associated with one or more interlacings within a set of resource blocks, the method comprises mapping the PSCCH to the RBs within the lowest subchannel in increasing order of resource block (RB) indices corresponding to the first interlacing index in the frequency domain. Storage medium.
In a wireless communication system, when a communication device receives a sidelink channel, At least one transmitter/receiver; At least one processor; and It includes at least one memory connected to the at least one processor so as to be operable, and storing instructions that cause the at least one processor to perform operations when executed, and the operations are: Includes receiving a physical sidelink control channel (PSCCH) within a subchannel, Receiving the above PSCCH is: Based on the assumption that at least one subchannel is associated with one or more interlacings within a resource block set, the method includes receiving the PSCCH under the assumption that the PSCCH is mapped to the RBs within the lowest subchannel among at least one subchannel in the frequency domain in increasing order of resource block (RB) indices corresponding to the first interlacing index. The above at least one subchannel is indexed in increasing order of interlaced index within each resource block set, Communication device.
A computer-readable non-transitory storage medium comprising at least one computer program that causes at least one processor to perform operations, wherein the operations are: Includes receiving a physical sidelink control channel (PSCCH) within a subchannel, Receiving the above PSCCH is: Based on the assumption that at least one subchannel is associated with one or more interlacings within a resource block set, the method includes receiving the PSCCH under the assumption that the PSCCH is mapped to the RBs within the lowest subchannel among at least one subchannel in the frequency domain in increasing order of resource block (RB) indices corresponding to the first interlacing index. The above at least one subchannel is indexed in increasing order of interlaced index within each resource block set, Storage medium.

Description

Method for transmitting a sidelink channel, communication device and storage medium, and method for receiving a sidelink channel, communication device and storage medium This specification relates to a wireless communication system. Various devices and technologies, such as machine-to-machine (M2M) communication, machine type communication (MTC), and devices requiring high data transmission rates like smartphones and tablet PCs (Personal Computers), are emerging and becoming widespread. Consequently, the amount of data required to be processed in cellular networks is increasing very rapidly. To satisfy this rapidly increasing demand for data processing, technologies such as carrier aggregation and cognitive radio are being developed to efficiently utilize more frequency bands, while technologies such as multi-antenna technology and multi-base station (BS) cooperation are being developed to increase the data capacity transmitted within a limited frequency range. Wireless communication systems support communication among user equipment (UEs) by utilizing available system resources (e.g., bandwidth, transmission power, etc.). With the introduction of new wireless communication technologies, not only is the number of UEs that a base station (BS) must service within a given resource area increasing, but the amount of data and control information transmitted and received by the BS with the UEs it services is also increasing. Since the amount of wireless resources available to the BS for communication with the UE(s) is finite, a new method is required for the BS to efficiently receive and transmit uplink/downlink data and/or uplink/downlink control information from/to the UE(s) using these finite wireless resources. In other words, as the density of nodes and/or the density of UEs increases, a method has been required to efficiently utilize high-density nodes or high-density UEs for communication. For example, as a solution to the burden on BS caused by rapidly increasing data traffic, sidelink (SL) communication, which supports direct communication between two or more nearby UEs without passing through network nodes using wireless communication technology, has been studied. With the emergence of the need for V2X (vehicle-to-everything), a communication technology that supports wired/wireless communication between a vehicle and other vehicles, infrastructure, networks, or pedestrians, a rapid increase in SL communication is expected. FIG. 1 is an example of a communication system 1 to which implementations of the present specification may be applied; FIG. 2 is a block diagram illustrating examples of communication devices capable of performing the method according to the present specification; FIG. 3 illustrates an example of a frame structure available in a 3GPP-based wireless communication system; FIG. 4 illustrates a resource grid of slots; FIG. 5 illustrates communication links in a wireless communication system; FIG. 6 is illustrated to explain the frequency and time resources for the side link; FIGS. 7 and 8 illustrate the transmission structure of physical channels within a slot; FIG. 9 illustrates a resource block (RB) interlacing; FIG. 10 illustrates interlaced RB-based uplink resource allocation in a shared spectrum; FIG. 11 shows examples of resource pool structures in the frequency domain for sidelink transmission over a shared spectrum; FIG. 12 illustrates examples of PSCCH/PSSCH transmission according to some implementations of the present specification; FIG. 13 illustrates examples of PSCCH resource mapping in the frequency domain according to some implementations of the present specification; FIG. 14 is an example of a process in which a communication device performs a sidelink transmission according to some implementations of the present specification; FIG. 15 is an example of a process in which a communication device performs sidelink reception according to some implementations of the present specification. Implementations according to this specification are described below with reference to the accompanying drawings. The detailed description disclosed below, together with the accompanying drawings, is intended to describe exemplary implementations of this specification and is not intended to represent the only form in which this specification may be practiced. The detailed description below includes specific details to provide a complete understanding of this specification. However, those skilled in the art will know that this specification may be practiced without such specific details. In some cases, to avoid ambiguity regarding the concepts of this specification, known structures and devices may be omitted or illustrated in the form of block diagrams focusing on the core functions of each structure and device. Additionally, throughout this specification, the same reference numerals are used to describe identical components. The techniques, devices, and systems described below can be applied t