Reception-side communication device, transmission-side communication device, and communication method

Abstract

The present invention reduces the processing load of a reception device. A reception-side communication device according to the present disclosure comprises a reception processing unit, a sensing unit, and a sensing result storing unit. The reception processing unit comprised by the reception-side communication device receives transmission data from a transmission-side communication device, said transmission data including a sensing sequence, which is a region for storing the results of sensing for detecting the position of a target object. The sensing unit comprised by the reception-side communication device performs said sensing. The sensing result storing unit comprised by the reception-side communication device stores the results of said sensing in said sensing sequence.

Description

Receiving-side communication device, transmitting-side communication device, and communication method

[0001] The present disclosure relates to a receiving-side communication device, a transmitting-side communication device, and a communication method.

[0002] In the next-generation mobile communication system (6G), interest is growing in a technology called Integrated Sensing and Communication (ISAC) that combines communication and RF-based sensing (see, for example, Non-Patent Document 1). This RF-based sensing is a technology in which radio waves transmitted from a transmitting node and reflected by the sensing target are received by a receiving node to detect information such as the presence of the sensing target. This RF-based sensing includes monostatic sensing and multistatic sensing. Monostatic sensing is sensing in which the transmitting node and the receiving node are the same or in locations that can be considered to be in the same location. Multistatic sensing is sensing in which multiple transmitting nodes and one or more receiving nodes in different locations cooperate with each other.

[0003] Henk Wymeersch et al., "Integration of communication and sensing in 6G: A joint industrial and academic perspective", IEEE International Symposium on Personal Indoor and Mobile Radio Communications, pp. 1-7, 2021.

[0004] In multistatic sensing, the method of notifying the sensing information generated by the receiving node (receiving device) becomes an issue. When calculations related to obtaining object information of the sensing target are performed in the wireless layer, it is assumed that information about the sensing results will be notified to the transmitting node (transmitting device). This results in an increase in notification (transmission) opportunities in the receiving device or an increase in the number of processes in the receiving device, which increases the processing load on the receiving device.

[0005] Therefore, the present disclosure proposes a system that reduces the processing load on communication devices and the like.

[0006] The receiving communication device of the present disclosure has a receiving processing unit that receives transmission data including a sensing sequence, which is an area for storing the results of sensing for detecting the position of an object, from the transmitting communication device, a sensing unit that performs the sensing, and a sensing result storage unit that stores the results of the sensing in the sensing sequence.

[0007] 1 is a diagram illustrating an example of a configuration of a MAC PDU. FIG. 1 is a diagram illustrating an example of a configuration of a MAC PDU. FIG. 2 is a diagram illustrating an example of a configuration of a subheader. FIG. 2 is a diagram illustrating an example of a configuration of an LCID. FIG. 3 is a diagram illustrating an example of a configuration of an LCID. FIG. 4 is a diagram illustrating an example of a configuration of an LCID. FIG. 5 is a diagram illustrating an example of a configuration of an LCID. FIG. 6 is a diagram illustrating monostatic sensing and bistatic sensing. FIG. 7 is a diagram illustrating bistatic sensing. FIG. 8 is a diagram illustrating information processing in a transmitting device and a receiving device. FIG. 9 is a diagram illustrating information processing in a transmitting device and a receiving device. FIG. 10 is a diagram illustrating a location where calculations related to object information acquisition are performed. FIG. 11 is a diagram illustrating a problem when calculations related to object information acquisition are performed in a wireless layer. FIG. 12 is a diagram illustrating a problem when calculations related to object information acquisition are performed in a wireless layer. FIG. 13 is a diagram illustrating an example of a configuration of a network according to the present disclosure. FIG. 14 is a diagram illustrating an example of a processing procedure between a base station device and a terminal device. FIG. 15 is a diagram illustrating an example of a processing procedure between a base station device and a terminal device according to the present disclosure. FIG. 16 is a diagram illustrating an example of a configuration of a base station device according to the first embodiment of the present disclosure. FIG. 17 is a diagram illustrating an example of a configuration of a terminal device according to the first embodiment of the present disclosure. FIG. 18 is a diagram illustrating an example of a configuration of a sensing sequence according to the first embodiment of the present disclosure. FIG. 1 is a diagram illustrating an example of the size of a storage unit according to the first embodiment of the present disclosure. FIG. 2 is a diagram illustrating an example of the size of a storage unit according to the first embodiment of the present disclosure. FIG. 3 is a diagram illustrating an example of the configuration of an information unit according to the first embodiment of the present disclosure. FIG. 4 is a diagram illustrating an example of the configuration of a storage unit according to the first embodiment of the present disclosure. FIG. 5 is a diagram illustrating an example of a processing procedure for sensing sequence position detection processing according to the first embodiment of the present disclosure. FIG. 6 is a diagram illustrating an example of a processing procedure for correlation acquisition processing according to the first embodiment of the present disclosure. FIG. 7 is a diagram illustrating an example of a processing procedure for pre-stage processing according to the first embodiment of the present disclosure. FIG. 8 is a diagram illustrating an example of a processing procedure for post-stage processing according to the first embodiment of the present disclosure. FIG. 9 is a diagram illustrating an example of repetition of correlation values ​​according to the first embodiment of the present disclosure. FIG. 10 is a diagram illustrating an example of storage of a portion of a transmission sequence according to the second embodiment of the present disclosure. FIG. 11 is a diagram illustrating another example of storage of a portion of a transmission sequence according to the second embodiment of the present disclosure.

[0008] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the drawings. The description will be given in the following order. Note that in the following embodiments, the same components will be assigned the same reference numerals to avoid redundant description. 1. Background Art 1.1 Overall Background 1.2 Information on MAC PDU Creation 1.3 Information on ISAC 1.4 Bistatic Sensing 1.5 Impact of Object Information on Upper Layers 2. Problem to be Solved 3. Network Configuration 4. Processing Procedure Between Base Station Device and Terminal Device 5. First Embodiment 6. Second Embodiment

[0009] <<1. Background Technology>> <1.1 Overall Background> Radio access methods and radio networks for cellular mobile communications (hereinafter also referred to as "Long Term Evolution (LTE)", "LTE-Advanced (LTE-A)", "LTE-Advanced Pro (LTE-A Pro)", "New Radio (NR)", "New Radio Access Technology (NRAT)", "Evolved Universal Terrestrial Radio Access (EUTRA)", or "Further EUTRA (FEUTRA)") are being studied by the 3rd Generation Partnership Project (3GPP (registered trademark)).

[0010] In the following description, LTE includes LTE-A, LTE-A Pro, and EUTRA, and NR includes NRAT and FEUTRA. In LTE, a base station device (base station) is also referred to as an eNodeB (evolved NodeB). In NR, a base station device (base station) is also referred to as a gNodeB. In LTE and NR, a terminal device (mobile station, mobile station device, and terminal) is also referred to as a UE (User Equipment). LTE and NR are cellular communication systems in which multiple areas covered by a base station device are arranged in the form of cells. A single base station device may manage multiple cells.

[0011] NR is expected to support a variety of communication use cases with a single wireless system, including eMBB (enhanced Mobile Broadband) for conventional smartphone data communications, as well as URLLC (Ultra-Reliable and Low Latency Communication), which requires high reliability and low latency, such as emergency message transmission for autonomous driving. Furthermore, in Rel-19, standardization activities are underway for the next-generation communications standard 6G (Beyond 5G, B5G), and next-generation technologies, including extensions to the NR standard, are being considered.

[0012] <1.2 Information Regarding MAC PDU Creation> Figure 1-3 shows an example of the configuration of a MAC PDU. A MAC PDU in NR is composed of multiple segmentation units called MAC subPDUs. A MAC subPDU is composed of a subheader, an element that stores information about the identification and control of the MAC subPDU, or is generated by combining a subheader with any of the following elements: Fixed-Sized MAC CE, Variable-Sized MAC CE, MAC SDU, or Padding (a bit sequence with no information content composed of any bit value). Here, MAC CE (Control Element) refers to information generated in the MAC layer that controls communications between a transmitter and a receiver. A MAC SDU refers to any bit sequence sent from a higher layer.

[0013] 4 shows an example of a subheader structure. This subheader is defined in 3GPP (registered trademark). MAC subheaders other than MAC SDUs including a fixed-size MAC CE, padding, and UL CCCH are composed of a header field R / F / LCID / (eLCID) / L. The MAC subheader of a MAC SDU including a fixed-size MAC CE, padding, and UL CCCH is composed of two header fields R / LCID / (eLCID).

[0014] Figure 5-10 shows an example of the LCID structure. LCID is an identifier that indicates the element following the subheader. The table shows the LCID (codepoint / index) and the meaning of the identifier. Figure 5-7 shows the LCID for downlink communication, and Figures 8-10 show the LCID for uplink communication. As shown in the figure, the meaning of LCID differs between uplink and downlink communication.

[0015] 1.3 Information on ISAC As mentioned above, there is growing interest in ISAC, a technology that combines communication and RF-based sensing in 6G. ISAC is also known as ICAS (Integrated Communication and Sensing) and JCAS (Joint Communication and Sensing).

[0016] RF-based sensing is a method in which radio waves transmitted from a transmitting node and reflected from a sensing target are received by a receiving node to detect the presence, angle, position, speed, acceleration, reflectivity, etc. of the sensing target. This RF-based sensing includes monostatic sensing and multistatic sensing.

[0017] 11 is a diagram illustrating monostatic sensing and bistatic sensing. Monostatic sensing is sensing in which the transmitting node and the receiving node are the same or in locations that can be considered to be in the same location. Multistatic sensing is sensing performed by multiple transmitting nodes and one or more receiving nodes in different locations, or in cooperation with each other. Among multistatic sensing, sensing performed by one transmitting node and one receiving node is called bistatic sensing.

[0018] The Technical Specification Group Service and System Aspects WG1 (TSG SA WG1: SAI), one of the working groups (WGs) of 3GPP (registered trademark), has defined 32 use cases for ISAC. These use cases include, for example, detection and localization use cases such as intrusion detection and situation monitoring for smart transportation, unmanned aerial vehicles (UAVs), and smart homes. Furthermore, use cases for healthcare monitoring such as respiration detection, vital signs sensing, and gesture recognition, as well as weather radar use cases such as raindrop detection, are also listed. Regarding the current status of ISAC in 3GPP (registered trademark), in Rel-19, discussions are planned on the design of a channel model including FR3 (7-24 GHz), a frequency band that is also expected to be used in ISAC, and the selection of use cases to focus on from among the SA1 use cases. In addition, in Rel-20, specific ISAC systems are scheduled to be discussed.

[0019] One form of ISAC implemented by 3GPP (registered trademark) is to incorporate sensing functions into wireless communication hardware and perform sensing using the wireless communication hardware. Sensing using wireless communication hardware has the following two characteristics: (1) Sensing using multiple infrastructure devices: Wireless communication infrastructure has a high affinity with multistatic sensing. Multistatic sensing can achieve higher accuracy and a wider sensing range than monostatic sensing. On the other hand, multistatic sensing requires synchronization of two or more infrastructure devices, which can lead to a complex system. However, sensing using wireless communication infrastructure is expected to enable synchronization across the entire system, and as mentioned above, is highly compatible with multistatic sensing. (2) Sensing using wireless communication transmission signal waveforms: Because existing wireless communication infrastructure is reused, the transmission signal waveform for sensing uses Orthogonal Frequency Division Multiplexing (OFDM) signals used in wireless communication. Unlike chirp signals commonly used in sensing, the signal waveform of an OFDM signal is not a signal waveform specialized for sensing, so it is expected that the distance resolution and velocity estimation accuracy of a method that reuses wireless infrastructure will be low. On the other hand, a method that reuses wireless infrastructure is characterized by the ability to transmit a large amount of information, including control information that can be used for sensing. In this disclosure, sensing that reuses existing wireless communication infrastructure is referred to as NR-based Radio Frequency (RF) sensing.

[0020] 1.4 Bistatic Sensing FIGS. 12A and 12B are diagrams illustrating bistatic sensing. In bistatic sensing, the position of a sensing object is calculated from geometric information between the node and the sensing object. FIGS. 12A and 12B illustrate a representative position estimation method for bistatic sensing. In FIGS. 12A and 12B, a base station device is shown as an example of the transmitting node, and a terminal device is shown as an example of the receiving node. FIG. 12A illustrates an example of detecting the position of an object from the distance (R) between the transmitting node and the receiving node, the distance (r) between the object and the receiving node, and the angle of arrival (AoA) of a wave reflected from the sensing object at the receiving node. FIG. 12B also illustrates an example of detecting the position of an object from the angle of departure (AoD), distance (R), and angle of arrival (AoA) of a sensing waveform emitted by the transmitting node. In this case, the angle of departure and angle of arrival must be recognized by each device. In particular, it is assumed that a receiver that estimates the angle of arrival performs the angle of arrival estimation based on a specific algorithm.

[0021] In order to implement any of the location estimation methods, it is assumed that the transmitting node and the receiving node exchange information necessary to perform RF sensing. Note that the location estimation method in this disclosure is not limited to the above methods.

[0022] 1.5 Impact of Object Information on Upper Layers Figure 13 is a diagram showing information processing in a transmitting device and a receiving device. This section explains how sensing results generated on the receiving side are notified to upper layers. It is assumed that a receiving device that receives a TB (Transport Block) performs signal processing in a communication information processing unit that demodulates or decodes the TB, and a sensing information processing unit that calculates sensing information from the TB. In this case, the sensing results generated by the sensing information processing unit, as shown in the figure, are information that is not intended to be handled by upper layers when creating a MAC PDU on the transmitting device side. To convey the sensing results to upper layers, the sensing results must be transmitted to the upper layers.

[0023] FIG. 14 illustrates information processing in a transmitting device and a receiving device. This figure explains a method for generating a MAC subPDU for storing sensing results in an upper layer on the transmitting side. However, this method also has problems. First, generating a MAC subPDU for storing sensing results reduces spectral efficiency. In particular, a MAC PDU containing a MAC subPDU for storing sensing results is modulated as a TB, but the MAC subPDU for storing sensing results is an element that does not need to be transmitted. This element clearly leads to a reduction in spectral efficiency. Second, even if a TB containing a MAC subPDU for storing sensing results is correctly received by a receiving device, there is a problem as to where in the TB the sensing results generated at the physical layer should be inserted. Because MAC subPDU decoding is performed at the MAC layer, it is impossible to check the MAC subPDU header at the physical layer. Therefore, a method for storing sensing results at the physical layer needs to be considered.

[0024] <<2. Problem to be solved>> One of the problems with multistatic sensing is where to perform the calculations related to acquiring information about the object being sensed. This calculation is expected to be performed in either the wireless layer or a higher layer.

[0025] FIG. 15 is a diagram showing where calculations related to object information acquisition are performed. (a) in the figure shows a case where calculations are performed in the wireless layer. In this case, it is assumed that the receiving node (receiving device) notifies the transmitting node (transmitting device) of information about the receiving-side sensing results. Considering application to multistatic sensing where the number of transmitting nodes increases, the following problems arise.

[0026] 16A and 16B are diagrams illustrating problems that arise when calculations related to object information acquisition are performed in a wireless layer. FIGS. 16A and 16B illustrate an example of bistatic sensing between transmitting node 1, transmitting node 2, and a receiving node. FIG. 16A illustrates a case in which the receiving node notifies each of transmitting node 1 and transmitting node 2 of sensing results. In this case, the number of transmissions increases, resulting in an increase in resource usage. On the other hand, FIG. 16B illustrates an example in which the receiving node integrates two sensing results and transmits them to transmitting node 2. In this case, the increase in the number of transmissions is suppressed, but the amount of processing in the receiving node increases. Thus, problems arise when calculations related to object information acquisition are performed in a wireless layer.

[0027] The present disclosure aims to perform calculations related to object information acquisition in an upper layer, as shown in (b) of Fig. 15. That is, the present disclosure aims to handle sensing information generated by a receiving device in an upper layer in a system that performs ISAC according to the 3GPP (registered trademark) standard, and proposes a method of upper layer notification and a method of handling PDUs.

[0028] <<3. Network Configuration>> Figure 17 is a diagram showing an example of the configuration of a network disclosed herein. It should be noted that the lines in the figure represent logical connections and are not necessarily directly connected physically. A communication area is made up of "cells" (ovals in the figure) each of which is serviced by a plurality of base stations. A single base station device may provide multiple cells. Base station devices can communicate with each other via backhaul (whether wired or wireless) and mainly exchange control information. This backhaul may use, for example, an X2 interface or S1 interface protocol for exchanging information.

[0029] The base station device also has a backhaul to the core network of the system. In this case, the connection to the core network may be made by connecting to a control entity (the control entity may be considered as one of the elements of the core network). In addition to being connected to the control entity, the base station device may also be connected to the core network via an external network. Examples of such a connection include femtocell base station devices and HeNB devices that can be installed indoors or at home.

[0030] Small cell areas are basically arranged so as to overlap with macro cell areas. However, they may also be arranged partially overlapping or completely outside the macro cell area. The macro cell and small cell may have characteristics in the radio resources they use. For example, the macro cell and small cell may use the same frequency resource F1 (or time resource T1). This makes it possible to improve the radio resource utilization efficiency of the entire system. On the other hand, the macro cell may use frequency resource F1 (or time resource T1), and the small cell may use frequency resource F2 (or time resource T2). This makes it possible to avoid interference between the macro cell and the small cell. Furthermore, both types of cells may use F1 / 2 (T1 / 2). When applied to frequency resources in particular, this is a concept equivalent to Carrier Aggregation (CA).

[0031] Macrocells and small cells may contain multiple TRPs. In communications using TRPs, the TRPs may use different resources (frequency, time) for transmission and reception. Alternatively, the same resources may be used. A TRP may be shared and used by different cells. The connection between multiple TRPs may be ideal (a connection state without delay or congestion) or non-ideal (a connection state that may include the possibility of delay or congestion). Here, TRP may be interpreted as macrocells, small cells, picocells, femtocells, and remote radio heads (RRH).

[0032] <<4. Processing Procedure Between a Base Station Device and a Terminal Device>> FIG. 18 is a diagram showing an example of a processing procedure between a base station device and a terminal device. This figure is a sequence diagram showing an example of a processing procedure between the base station device 20 and the terminal device 10. First, the base station device 20 notifies the terminal device 10 of static initial information for establishing communication with the terminal device 10 (step S101). In this phase, the base station device 20 transmits static information to the terminal device 10. This information desirably includes the minimum information required for establishing communication. This information includes, for example, information regarding synchronization (including PSS and SSS), information regarding the physical broadcast channel (PBCH), information regarding cell selection, and information for the receiving device to connect to the transmitting device (initial connection, RACH). This information may be divided and transmitted multiple times. Furthermore, this notification may be performed aperiodically (aperiodic) or periodically (periodic) so that it can be received by the terminal device 10.

[0033] Next, the terminal device 10 notifies the base station device 20 of the cell to which the terminal device 10 is connected of its capabilities (step S102). This information includes information about ISAC capabilities. This capability information is notified during or after the initial access procedure. As a physical channel for notification, at least one of a random access channel (PRACH), a physical uplink control channel (PUCCH), and a physical uplink shared channel (PUSCH) can be used.

[0034] The base station device 20 notifies the terminal device 10 connected to the cell managed by the base station device 20 of semi-static control information including information about ISAC (step S103). This semi-static control information may be cell-specific control information. This control information is notified during or after the initial connection procedure. This notification may also be notified as part of an RRC procedure, such as RRC signaling, RRC configuration, and RRC reconfiguration. Alternatively, this notification may also be periodically notified from the base station device 20 to the terminal device 10. As a physical channel for notifying this control information, at least one of a broadcast channel (PBCH: Physical Broadcast Channel), a downlink control channel (PDCCH: Physical Downlink Control Channel, EPDCCH: Enhanced Physical Downlink Control Channel), and a downlink shared channel (PDSCH: Physical Downlink Shared Channel) is used.

[0035] The terminal device 10 performs semi-static settings regarding the ISAC (step S104).

[0036] Thereafter, the base station device 20 notifies the terminal device 10 of control information (dynamic control information) such as radio resources to be used for downlink communication and dynamic control information related to ISAC (step S105). This is performed specifically when downlink communication occurs from the base station device 20 to the terminal device 10 (for example, when the terminal device requests data download (pull), when push data is generated to the terminal device, or when a sensing request is generated). This dynamic control information may be terminal device-specific (UE-specific) or terminal device group-specific (UE-group-specific) control information. Here, a terminal device group is, for example, a group of one or more terminal devices that are destinations when downlink communication is multicast or broadcast. The dynamic control information includes frequency resources (e.g., resource blocks, subcarriers, subcarrier groups, etc.), time resources (e.g., subframes, slots, mini-slots, symbols, etc.) and spatial resources (e.g., antennas, antenna ports, spatial layers, spatial streams, etc.) that are allocated for downlink communication to the target terminal devices (terminal device groups).The dynamic control information further includes non-orthogonal resources (power resources, interleaving patterns, scrambling patterns, spreading patterns, etc.) of NOMA (Non-orthogonal Multiple Access, MUST (Multiuser Superposition Transmission), IDMA (Interleave Division Multiple Access) and CDMA (Codo Division Multiple Access)), modulation levels (Modulation Orders), information on the timing of executing ISAC sensing, the ISAC execution method, and ARQ / HARQ settings (NDI (New Data Indicator), RV (Redundancy Version), etc.).

[0037] The terminal device 10 that has received this dynamic control information performs settings to prepare for appropriate reception of downlink communication in accordance with the control information. At this time, the terminal device 10 performs dynamic settings related to ISAC (step S106). The terminal device 10 may also perform sensing using the notified information.

[0038] The base station device 20 encodes and modulates data for downlink communication to the terminal device 10 so as to match the control information notified to the terminal device 10. The base station device 20 transmits the encoded and modulated data as a radio signal to the terminal device 10 via downlink (step S107). This corresponds to the initial transmission.

[0039] The terminal device 10 performs signal processing of the radio signal from the base station device 20 (step S108). Specifically, the terminal device 10 performs reception, demodulation, and decoding processing according to the settings specified in the control information. This signal processing also includes sensing processing. The terminal device 10 performs HARQ processing (step S109) depending on whether data decoding was successful or failed, or whether the sensing result was correctly obtained, and transmits an ACK or NACK to the base station device 20 (step S110). Note that it is desirable to change the settings of the ARQ or HARQ processing depending on whether data decoding was successful or failed, or whether the sensing result was correctly obtained. For example, if decoding failed or the sensing result was incorrect, it is desirable to store the decoded result including the sensing result or data in the middle of decoding (soft decision value, log likelihood ratio (LLR), etc.) in memory in order to perform the next HARQ retransmission and combining. Here, it is assumed that a decoding error occurred in step S109. In this case, the terminal device 10 transmits a NACK in step S110.

[0040] The base station device 20 executes the next process to be performed according to the ACK or NACK received from the terminal device 10. For example, when a NACK is received, the base station device 20 performs HARQ processing (step S111). That is, the base station device 20 prepares for ARQ or HARQ retransmission. This preparation for retransmission includes RV selection, MCS selection, and radio resource selection. The base station device 20 proceeds to downlink communication of retransmission or new data according to the ARQ or HARQ processing corresponding to the ACK or NACK. To this end, the base station device 20 notifies the target terminal device 10 of dynamic control information related to ISAC (step S112), and the terminal device 10 performs dynamic ISAC settings (step S113). The base station device 20 then performs downlink transmission (retransmission) according to the settings (step S114). The terminal device 10 performs processing related to HARQ (step S115) and transmits an ACK or NACK to the base station device 20 (step S116). In the retransmission, it is assumed that no decoding error occurs. Therefore, the terminal device 10 transmits an ACK in step S116. Next, the base station device 20 performs processing related to HARQ (step S117).

[0041] If an ACK is transmitted from the terminal device 10, this means that the data has been transmitted and received without any problems, and the base station device 20 moves on to communication of the next new data.

[0042] 5. First Embodiment In the present disclosure, a base station device 20 generates a bit sequence (sensing sequence) for storing sensing results, and a terminal device 10 stores the sensing results in the sensing sequence. The present disclosure is broadly divided into four points.

[0043] 19 is a diagram showing an example of a processing procedure between a base station device and a terminal device according to the present disclosure. The figure is a sequence diagram showing an example of a processing procedure between the base station device 20 and the terminal device 10. The processing in the figure includes notification and setting (configuration) of semi-static information (step S120), notification and setting (configuration) of dynamic information (step S140), transmission processing related to a sensing sequence (step S150), and reception processing related to a sensing sequence (step S170).

[0044] In the notification and setting of the semi-static information (step S120), it is confirmed whether the terminal device 10 is capable of processing mainly related to the sensing sequence. In addition, the base station device 20 or the terminal device 10 is configured using the semi-static information. The notification and setting of the semi-static information (step S120) includes notification of a capability related to the sensing sequence from the base station device 20 (step S121), configuration related to sensing in the terminal device 10 (step S122), notification of a capability related to the sensing sequence from the terminal device 10 (step S123), and configuration related to sensing in the base station device 20 (step S124).

[0045] In the notification and setting of dynamic information (step S140), setting of information (dynamic information) necessary to execute processing related to a sensing sequence is performed between the base station device 20 and the terminal device 10. The processing related to the sensing sequence is triggered by the occurrence of a sensing request (step S130) in either the base station device 20 or the terminal device 10. The notification and setting of dynamic information (step S140) includes notification of dynamic control information related to the sensing sequence (step S141), dynamic setting related to sensing in the terminal device 10 (step S142), and dynamic setting related to sensing in the base station device 20 (step S143).

[0046] The transmission process for the sensing sequence (step S150) is a process for the sensing sequence performed on the base station device 20 side. This process includes sensing sequence generation (step S151), multiplexing (step S152), and physical layer processing (step S153).

[0047] Next, the base station device 20 transmits data including the sensing sequence (step S161). The terminal device 10 receives the data from the base station device 20 (step S161) and performs sensing processing (step S162).

[0048] The receiving process for the sensing sequence (step S170) is a process performed by the terminal device 10 that receives data including the sensing sequence. This process includes storing the sensing results (step S171) and demultiplexing (step S172).

[0049] The base station device 20 in the following description can be implemented as a terrestrial base station device, a satellite station, a drone, a balloon, an airplane, or other non-terrestrial base station device that operates as a communication device.

[0050] In the following description, when specific examples are given, specific values ​​are used in the description, but the values ​​may not be limited to the examples and other values ​​may be used.

[0051] In the following description, the term "resource" refers to a frequency, time, resource element (including REG, CCE, and CORESET), resource block, bandwidth part, component carrier, symbol, sub-symbol, slot, mini-slot, non-slot, subslot, subframe, frame, PRACH occasion, occasion, code, multi-access physical resource, multi-access signature, subcarrier spacing (numerology), etc.

[0052] <Configuration of Base Station Device> Fig. 20 is a diagram illustrating a configuration example of a base station device according to the first embodiment of the present disclosure. The figure is a block diagram illustrating a configuration example of a base station device 20. The base station device 20 includes a wireless communication unit 21, a storage unit 22, and a control unit 23. Note that the configuration illustrated in the figure is a functional configuration, and the hardware configuration may be different from this. Furthermore, the functions of the base station device 20 may be distributed and implemented in multiple physically separated devices.

[0053] The wireless communication unit 21 is a signal processing unit for wireless communication with other wireless communication devices (e.g., terminal device 10). The wireless communication unit 21 may be referred to as a wireless transceiver or simply as a transceiver. In this case, the wireless communication unit 21 may be a transceiver (hereinafter referred to as a 3GPP (registered trademark) transceiver) conforming to the specifications defined in the Technical Specification (TS) of the 3rd Generation Partnership Project (3GPP (registered trademark)). The 3GPP (registered trademark) transceiver may be a 3G transceiver, a 4G (LTE) transceiver, a 5G (NR) transceiver, or a transceiver of a generation after 5G (e.g., 6G). The wireless communication unit 21 is controlled by the control unit 23. The wireless communication unit 21 supports one or more wireless access methods. The wireless communication unit 21 may support at least one of NR, LTE, B5G (Beyond 5G), and 6G. The wireless communication unit 21 may support W-CDMA, cdma2000, etc. in addition to NR, LTE, B5G, and 6G. The wireless communication unit 21 may support automatic retransmission techniques such as HARQ (Hybrid Automatic Repeat reQuest). Some or all of the processing performed by the wireless communication unit 21 may be performed by the control unit 23.

[0054] The wireless communication unit 21 includes a transmission processing unit 211, a reception processing unit 212, and an antenna 213. Alternatively, at least one of the transmission processing unit 211, the reception processing unit 212, and the antenna 213 may be considered as the wireless communication unit 21. The wireless communication unit 21 may include a plurality of transmission processing units 211, a plurality of reception processing units 212, and a plurality of antennas 213. When the wireless communication unit 21 supports a plurality of wireless access methods, each unit of the wireless communication unit 21 may be configured individually for each wireless access method. The transmission processing unit 211 and the reception processing unit 212 may be configured individually for LTE, NR, B5G, and 6G. The antenna 213 may be configured with a plurality of antenna elements, for example, a plurality of patch antennas. The wireless communication unit 21 may have a beamforming function. For example, the wireless communication unit 21 may have a polarization beamforming function that uses vertically polarized waves (V polarization) and horizontally polarized waves (H polarization) (or a polarization beamforming function that uses dual polarization in polarization directions of 45 degrees and −45 degrees from the vertical direction). Note that the wireless communication unit 21 may transmit the sensing signal described above or below.

[0055] The transmission processing unit 211 performs transmission processing of downlink control information and downlink data. For example, the transmission processing unit 211 encodes the downlink control information and downlink data input from the control unit 23 using a coding method such as block coding, convolutional coding, or turbo coding. Here, the encoding may be performed using polar codes or low-density parity check codes (LDPC codes). The transmission processing unit 211 then modulates the coded bits using a predetermined modulation method (e.g., BPSK, QPSK, 16QAM, 64QAM, 256QAM, or a higher-order multi-level modulation method). In this case, the signal points on the constellation do not necessarily need to be equidistant. The constellation may also be a non-uniform constellation (NUC). The transmission processing unit 211 then multiplexes the modulation symbols of each channel and the downlink reference signal and allocates them to predetermined resource elements. The transmission processing unit 211 then performs various signal processing on the multiplexed signal. For example, the transmission processing unit 211 performs processes such as conversion to the frequency domain by fast Fourier transform, addition of a guard interval (cyclic prefix), generation of a baseband digital signal, conversion to an analog signal, quadrature modulation, up-conversion, removal of unnecessary frequency components, and power amplification. The signal generated by the transmission processing unit 211 is transmitted from an antenna 213.

[0056] The reception processing unit 212 processes the uplink signal received via the antenna 213. For example, the reception processing unit 212 performs downconversion, removal of unnecessary frequency components, control of amplification level, quadrature demodulation, conversion to a digital signal, removal of guard intervals (cyclic prefixes), and extraction of frequency domain signals using fast Fourier transform on the uplink signal. The reception processing unit 212 then separates uplink channels such as a PUSCH (Physical Uplink Shared Channel) and a PUCCH (Physical Uplink Control Channel) and an uplink reference signal from the processed signal. The reception processing unit 112 also demodulates the received signal using a modulation scheme such as binary phase shift keying (BPSK) or quadrature phase shift keying (QPSK) on the modulation symbols of the uplink channel. The modulation scheme used for demodulation may be 16QAM (Quadrature Amplitude Modulation), 64QAM, or 256QAM. In this case, the signal points on the constellation do not necessarily have to be equidistant. The constellation may be a non-uniform constellation (NUC). The reception processing unit 112 then performs decoding processing on the coded bits of the demodulated uplink channel. The decoded uplink data and uplink control information are output to the control unit 23.

[0057] The antenna 213 is an antenna device that converts electric current and radio waves into each other. The antenna 213 may be composed of a single antenna element, for example, a single patch antenna. The antenna 213 may be composed of multiple antenna elements, for example, multiple patch antennas. When the antenna 213 is composed of multiple antenna elements, the wireless communication unit 21 may have a beamforming function. The wireless communication unit 21 may be configured to generate a directional beam by controlling the directivity of a wireless signal using the multiple antenna elements. The antenna 213 may be a dual-polarized antenna. When the antenna 213 is a dual-polarized antenna, the wireless communication unit 21 may use vertical polarization (V polarization) and horizontal polarization (H polarization) (or dual polarization with polarization directions at 45 degrees and -45 degrees from the vertical direction) when transmitting a wireless signal. The wireless communication unit 21 may control the directivity of a wireless signal transmitted using vertical polarization and horizontal polarization (or dual polarization with polarization directions at 45 degrees and -45 degrees from the vertical direction). Furthermore, the wireless communication unit 21 may transmit and receive spatially multiplexed signals via multiple layers each consisting of multiple antenna elements.

[0058] The storage unit 22 is a readable and writable storage device such as a DRAM, an SRAM, a flash memory, or a hard disk.

[0059] The control unit 23 is a controller that controls each unit of the base station device 20. The control unit 23 controls the wireless communication unit 21 to perform wireless communication with other wireless communication devices (e.g., terminal device 10 or other base station device 20). The control unit 23 may be implemented by a processor such as a CPU or MPU. Specifically, the control unit 23 may be implemented by a processor executing various programs stored in a storage device inside the base station device 20 using RAM or the like as a working area. The control unit 23 may be implemented by an integrated circuit such as an ASIC or FPGA. The control unit 23 may also be implemented by a GPU. A CPU, MPU, ASIC, FPGA, and GPU can all be considered controllers. The control unit 23 may be composed of multiple physically separated objects. For example, the control unit 23 may be composed of multiple semiconductor chips.

[0060] The control unit 23 controls the transmission processing unit 211 to generate transmission data. This transmission data includes a sensing sequence. The sensing sequence is an area for storing the results of sensing for detecting the position of an object. The sensing sequence includes an information section in which information about the sensing sequence is stored. The sensing sequence may also include a storage section in which the results of sensing are stored. Details of the configuration of the sensing sequence will be described later. Note that "transmission data" is also referred to as "transmission sequence" and "reception sequence."

[0061] The control unit 23 further controls the transmission processing unit 211 to notify the capability related to the sensing sequence (step S121 in FIG. 19). The control unit 23 further controls dynamic setting related to the sensing sequence (step S143 in FIG. 19). Note that the control unit 23 may also control semi-static setting related to the sensing sequence. The control unit 23 further controls transmission of data including the sensing sequence. Note that the base station device 20 is an example of a "transmitting communication device" in the present disclosure.

[0062] 21 is a diagram illustrating a configuration example of a terminal device according to the first embodiment of the present disclosure. The figure is a block diagram illustrating a configuration example of a terminal device 10. The terminal device 10 includes a wireless communication unit 11, a storage unit 12, and a control unit 13.

[0063] The wireless communication unit 11 is a signal processing unit for wireless communication with other wireless communication devices (e.g., a base station device 20 or another terminal device 10). The wireless communication unit 11 may be referred to as a wireless transceiver or simply as a transceiver. In this case, the wireless communication unit 11 may be a transceiver of a standard defined by the 3GPP (registered trademark) Technical Specification (TS: Technical Specification) (hereinafter referred to as a 3GPP (registered trademark) transceiver). The 3GPP (registered trademark) transceiver may be a 3G transceiver, a 4G (LTE) transceiver, a 5G (NR) transceiver, or a transceiver of a generation after 5G. The wireless communication unit 11 is controlled, for example, by the control unit 13. The wireless communication unit 11 supports one or more wireless access methods. The wireless communication unit 11 may support at least one of NR, LTE, B5G (Beyond 5G), and 6G. The wireless communication unit 11 may support W-CDMA, cdma2000, etc. in addition to NR, LTE, B5G, and 6G. The wireless communication unit 11 may support automatic retransmission techniques such as HARQ (Hybrid Automatic Repeat reQuest). Some or all of the processing performed by the wireless communication unit 11 may be performed by the control unit 13.

[0064] The wireless communication unit 11 includes a transmission processing unit 111, a reception processing unit 112, and an antenna 113. At least one of the transmission processing unit 111, the reception processing unit 112, and the antenna 113 may be considered as the wireless communication unit 11. The wireless communication unit 11 may include a plurality of transmission processing units 111, a plurality of reception processing units 112, and a plurality of antennas 113. When the wireless communication unit 11 supports a plurality of wireless access methods, each unit of the wireless communication unit 11 may be configured individually for each wireless access method. The transmission processing unit 111 and the reception processing unit 112 may be configured individually for LTE, NR, B5G, and 6G. The antenna 113 may be configured with a plurality of antenna elements, for example, a plurality of patch antennas. The wireless communication unit 11 may have a beamforming function. For example, the wireless communication unit 11 may have a polarization beamforming function that uses vertically polarized waves (V polarization) and horizontally polarized waves (H polarization) (or a polarization beamforming function that uses dual polarization in polarization directions of 45 degrees and -45 degrees from the vertical direction). Note that the wireless communication unit 11 may transmit the sensing signal described above or below.

[0065] The antenna 113 is an antenna device that converts electric current and radio waves into each other. The antenna 113 may be composed of a single antenna element, for example, a single patch antenna. The antenna 113 may be composed of multiple antenna elements, for example, multiple patch antennas. When the antenna 113 is composed of multiple antenna elements, the wireless communication unit 11 may have a beamforming function. The wireless communication unit 11 may be configured to generate a directional beam by controlling the directivity of a wireless signal using the multiple antenna elements. The antenna 113 may be a dual-polarized antenna. When the antenna 113 is a dual-polarized antenna, the wireless communication unit 11 may use vertical polarization (V polarization) and horizontal polarization (H polarization) (or dual polarization with polarization directions at 45 degrees and -45 degrees from the vertical direction) when transmitting a wireless signal. The wireless communication unit 11 may control the directivity of a wireless signal transmitted using vertical polarization and horizontal polarization (or dual polarization with polarization directions at 45 degrees and -45 degrees from the vertical direction). Furthermore, the wireless communication unit 11 may transmit and receive spatially multiplexed signals via multiple layers each consisting of multiple antenna elements.

[0066] The transmission processing unit 111 performs transmission processing of the uplink control information and uplink data. For example, the transmission processing unit 111 encodes the uplink control information and uplink data input from the control unit 13 using a coding method such as block coding, convolutional coding, or turbo coding. Here, the encoding may be performed using polar codes or low density parity check codes (LDPC codes). The transmission processing unit 111 then modulates the coded bits using a predetermined modulation method (e.g., BPSK, QPSK, 16QAM, 64QAM, 256QAM, or a higher-order multi-level modulation method). In this case, the signal points on the constellation do not necessarily need to be equidistant. The constellation may also be a non-uniform constellation (NUC). The transmission processing unit 111 then multiplexes the modulation symbols of each channel and the uplink reference signal, and allocates the multiplexed symbols to predetermined resource elements. The transmission processing unit 111 then performs various signal processing on the multiplexed signal. For example, the transmission processing unit 111 performs processing such as conversion to the frequency domain by fast Fourier transform, addition of a guard interval (cyclic prefix), generation of a baseband digital signal, conversion to an analog signal, quadrature modulation, up-conversion, removal of unnecessary frequency components, and power amplification. The signal generated by the transmission processing unit 111 is transmitted from an antenna 113.

[0067] The reception processing unit 112 processes downlink signals received via the antenna 113. For example, the reception processing unit 112 performs downconversion, removal of unnecessary frequency components, control of amplification level, quadrature demodulation, conversion to a digital signal, removal of guard intervals (cyclic prefixes), and extraction of frequency domain signals using fast Fourier transform on the downlink signals. The reception processing unit 112 then separates downlink channels such as a PUSCH (Physical Uplink Shared Channel) and a PUCCH (Physical Uplink Control Channel) and a downlink reference signal from the processed signals. The reception processing unit 112 also demodulates the received signals using modulation methods such as Binary Phase Shift Keying (BPSK) and Quadrature Phase Shift Keying (QPSK) on the modulation symbols of the downlink channels. The modulation method used for demodulation may be 16QAM (Quadrature Amplitude Modulation), 64QAM, or 256QAM. In this case, the signal points on the constellation do not necessarily need to be equidistant. The constellation may be a non-uniform constellation (NUC). The reception processing unit 112 then performs decoding processing on the coded bits of the demodulated downlink channel. The decoded downlink data and downlink control information are output to the control unit 13.

[0068] The reception processing unit 112 also receives transmission data including a sensing sequence transmitted from the base station device 20. The reception processing unit 112 also includes a sensing unit 114, a sensing sequence position detection unit 115, and a sensing result storage unit 116.

[0069] The sensing unit 114 performs sensing. This sensing unit 114 performs the sensing shown in FIGS. 12A and 12B . That is, the sensing unit 114 detects sensing radio waves and direct waves. The results of this sensing are output to the sensing result storage unit 116.

[0070] The sensing result storage unit 116 stores the above-mentioned sensing results in the sensing sequence. When the above-mentioned storage unit is arranged in the sensing sequence, the sensing result storage unit 116 stores the sensing results in the storage unit of the sensing sequence.

[0071] The sensing result storage unit 116 can store the sensing results in the sensing sequence based on the sensing sequence information stored in the information section included in the sensing sequence. In this case, the sensing sequence information stored in the information section is information about the size of the storage section. Furthermore, if a storage section is not provided in the transmission data, the sensing result storage unit 116 can also concatenate the sensing results at a position following the information section.

[0072] The sensing sequence position detection unit 115 detects the position of a sensing sequence in the transmission data. The detection of the position of a sensing sequence can be performed based on position information notified from the base station device 20. The detection of the position of a sensing sequence can also be performed based on the transmission data. The sensing sequence position detection unit 115 may also detect a predetermined position in the transmission data as the position of the sensing sequence. The sensing sequence position detection unit 115 can also detect the position of a sensing sequence based on the transmission data. Details of the detection of the position of a sensing sequence by the sensing sequence position detection unit 115 will be described later. The sensing result storage unit 116 can store the sensing result in the sensing sequence at the position detected by the sensing sequence position detection unit 115.

[0073] The above-described processing by the reception processing unit 112 corresponds to processing at a lower layer in the OSI reference model.

[0074] The storage unit 42 is a readable and writable storage device such as a DRAM, an SRAM, a flash memory, or a hard disk.

[0075] The control unit 13 is a controller that controls each unit of the terminal device 10. The control unit 13 controls the wireless communication unit 11 to perform wireless communication with other wireless communication devices (e.g., a base station device 20 or another terminal device 10). The control unit 13 may be implemented by a processor such as a CPU or an MPU. In particular, the control unit 13 may be implemented by a processor executing various programs stored in an internal storage device of the terminal device 10 using RAM or the like as a working area. The control unit 13 may be implemented by an integrated circuit such as an ASIC or an FPGA. The CPU, MPU, ASIC, and FPGA can all be considered controllers. The control unit 13 may be implemented by a GPU. The CPU, MPU, ASIC, FPGA, and GPU can all be considered controllers. The control unit 13 may be composed of multiple physically separated objects. For example, the control unit 13 may be composed of multiple semiconductor chips.

[0076] The blocks (information processing unit 131) included in the control unit 13 are functional blocks that respectively indicate the functions of the control unit 13. These functional blocks may be software blocks or hardware blocks. For example, each of the above-mentioned functional blocks may be a software module realized by software (including a microprogram), or may be a circuit block on a semiconductor chip (die). Of course, each functional block may be a processor or an integrated circuit. The control unit 13 may be configured with functional units different from the above-mentioned functional blocks. The method of configuring the functional blocks is arbitrary.

[0077] The control unit 13 also performs processing of the upper layer in the OSI reference model. Specifically, the control unit 13 performs the demultiplexing process of step S172 in Fig. 19. At that time, the control unit 13 acquires the sensing results stored in the sensing sequence of the TB generated by the lower layer. Details of the demultiplexing process will be described later.

[0078] The control unit 13 includes an information processing unit 131. This information processing unit 131 processes the sensing results. Specifically, the information processing unit 131 performs calculations to acquire information about the target object based on the sensing results.

[0079] The control unit 13 further controls the transmission processing unit 111 to notify the capability related to the sensing series (step S123 in FIG. 19 ). The control unit 13 further controls dynamic setting related to the sensing series (step S142 in FIG. 19 ). Note that the control unit 13 may further control semi-static setting related to the sensing series. The control unit 13 further controls the sensing unit 114 to perform sensing processing (step S162 in FIG. 19 ). The control unit 13 further controls storing the sensing result in the sensing series (step S171 in FIG. 19 ). The control unit 13 further performs demultiplexing (step S172 in FIG. 19 ). Note that the terminal device 10 is an example of a "receiving-side communication device" in the present disclosure.

[0080] <Semi-static periodic information notification> Notification of semi-static information regarding the sensing sequence consists of notification of capabilities regarding the sensing sequence from the base station device 20 to the terminal device 10 and notification of capabilities regarding the sensing sequence from the terminal device 10 to the base station device 20.

[0081] This notification is preferably performed by a higher layer, for example, by RRC configuration, RRC reconfiguration, reconfiguration establishment, or SIBX (X is an arbitrary value).

[0082] The notification of the capability related to the sensing sequence from the base station device 20 to the terminal device 10 includes, for example, the following information: Information regarding whether or not the sensing sequence can be transmitted Information for determining whether or not the sensing sequence can be transmitted Information related to the number of antennas (for example, the number of ports) Resources (information regarding bandwidth, information regarding carrier waves, information regarding timing) Information regarding the state of the communication path (information that can be calculated from the received power measured by coordinating between transmitter and receiver, as represented by RSRP) Information regarding the configuration of the sensing sequence Information regarding the information section (configuration of the information section, size of the information section, position of the information section) Information regarding the storage section (configuration of the storage section, size of the storage section) Information regarding the position of the sensing sequence Information regarding the start position of the sensing sequence Information regarding the absolute position of the sensing sequence Information regarding the relative position of the sensing sequence (end of the transmission sequence, start of the transmission sequence)

[0083] The notification of the capability related to the sensing sequence from the terminal device 10 to the base station device 20 includes, for example, the following information: Information related to permission to transmit the sensing sequence Information for determining whether or not to transmit the sensing sequence Information related to the number of antennas (e.g., number of ports) Resources (bandwidth, carrier, timing) Information related to the state of the communication path (information that can be calculated from the received power measured by coordinating between transmitter and receiver, as represented by RSRP)

[0084] <Notification of Dynamic Information> Notification of dynamic information related to the sensing sequence is configured by notification of information related to the sensing sequence from the base station device 20 to the terminal device 10. This notification is preferably performed at the physical layer. For example, it is assumed that this is performed using PDCCH, DCI, PUCCH, UCI, CSI-RS, etc. The notification of capabilities related to the sensing sequence from the base station device 20 to the terminal device 10 includes, for example, the following information: Information on whether a sensing sequence is included in the sequence to be transmitted Information for determining whether or not to transmit the sensing sequence Information related to the number of antennas (e.g., number of ports) Resources (bandwidth, carrier, timing) Information on the state of the communication path (information that can be calculated from the received power measured by cooperation between transmitter and receiver, as typified by RSRP) Information on the configuration of the sensing sequence Information on the information section (configuration of the information section, size of the information section, position of the information section) Information on the storage section (configuration of the storage section, size of the storage section) Information on the position of the sensing sequence Information on the start position of the sensing sequence Information on the absolute position of the sensing sequence Information on the relative position of the sensing sequence (end of the transmission sequence, start of the transmission sequence)

[0085] <Configuration of Sensing Sequence> Fig. 22 is a diagram showing a configuration example of a sensing sequence according to the first embodiment of the present disclosure. The figure shows a configuration example of a sensing sequence 300. The sensing sequences 300 in the upper and middle sections of the figure show examples in which an information section 310 and a storage section 320 are included. The upper section of the figure shows an example in which the information section 310 is arranged at the beginning of the sensing sequence 300. The middle section of the figure shows an example in which the information section 310 is arranged at the end of the sensing sequence 300. Furthermore, the sensing sequence 300 in the lower section of the figure shows an example in which the information section 310 is arranged.

[0086] The size of the sensing sequence 300 may be defined in association with a specific element, or may be defined to be the same size as one coding unit in physical layer coding, or may be defined to be larger than the size of one coding unit in physical layer coding.

[0087] The size of the sensing sequence 300 may be defined as an integer multiple of the size of one coding unit in physical layer coding, where one coding unit is, for example, a code block (CB). The sensing sequence 300 may be configured to have a size larger than the bit sequence of the sensing result.

[0088] The information section 310 is preferably arranged at the beginning or end of the sequence, as in the sensing sequence 300 in the upper and middle rows of Fig. 22 . Whether the information section 310 is arranged at the beginning or end may be determined by notification. Here, notification refers to, for example, notifications performed when implementing ISAC (PRACH, RACH, PDU session establishment, RRC connection establishment, RCC reconfiguration, PDCCH, CCCH, PUCCH, DCI, etc., but is not limited to these). It is desirable that information on whether the section indicating information about the sequence is arranged at the beginning or end is shared between the base station device 20 and the terminal device 10.

[0089] The sensing sequence 300 in the lower part of FIG. 22 corresponds to the case where the size of the storage section 320 is 0.

[0090] The sensing sequence 300 may be defined as any of the following sequence names: MAC layer: MAC PDU, MAC subPDU, MAC SDU RLC layer: RLC control PDU, RLC PDU, RLC SDU PDCP layer: PDCP PDU, PDCP control PDU, PDCP SDU Note that the names of the sensing sequence 300 are not limited to these.

[0091] <Information Section> The size of the information section 310 can be a fixed value. There may be multiple fixed values. Furthermore, when there are multiple information sections 310, the base station device 20 can notify information regarding the size of the information section using semi-static or dynamic information. This fixed value can be defined as a multiple of 8 (byte unit).

[0092] <Information in the Information Section> The information section 310 may include information indicating the size of the storage section 320. The information indicating the size of the storage section 320 may be shared between the base station device 20 and the terminal device 10 as semi-static or dynamic information. This information indicating the size of the storage section 320 corresponds to an identifier indicating the size of the storage section 320. The size of the storage section may be defined by a field of a fixed value.

[0093] 23A and 23B are diagrams showing an example of the size of the storage section according to the first embodiment of the present disclosure. In FIGS. 23A and 23B, the size of the storage section 320 is expressed in bits. FIG. 23A shows an example of a table showing the size of the storage section 320. FIG. 23B shows an example of a table that combines actual values ​​and identifiers that indicate table values. Here, the identifier field is 8 bits long, but other values ​​may be used.

[0094] Furthermore, the size of the storage unit 320 does not need to be indicated. For example, if the storage unit 320 is allowed to be of any size, it is not necessary to insert information regarding the size of the storage unit 320 in the information unit 310. Additionally, if the size of the storage unit 320 is notified to the terminal device 10 using semi-static information or dynamic information, it is not necessary to insert information regarding the size of the storage unit 320 in the information unit 310. Furthermore, information regarding the size of the storage unit 320 may be notified to the terminal device 10 in any of the processes prior to the transmission of this sequence.

[0095] The information in the storage unit 320 may also be information indicating that the sequence is a sensing sequence. The identification of the sensing sequence may be indicated by a bit pattern indicated in an N-bit field. For example, in an 8-bit field, the sequence may be identified as "if the bit pattern indicates a real number X, the sequence is a sensing sequence." This identification process may also be performed in two stages. For example, the sequence may be identified as a sensing sequence by performing identification using a 4-bit field in the first stage and then performing identification using an 8-bit field in the second stage.

[0096] This identification field may be defined by extending the frame of an existing standard such as LCID, eLCID, or Codepoint. Furthermore, this identification field may be defined in a form different from that of the existing standard. The size and identification rules may be shared between the base station device 20 and the terminal device 10 by semi-static or dynamic notification.

[0097] The sensing series may be identified, for example, by a priority defined in the MAC layer. Examples of methods for identifying by priority are shown below: - The sensing series has the highest priority. - The sensing series has a higher priority than a specific series. - The sensing series has a lower priority than a specific series. - The sensing series has a higher priority than a specific series and a lower priority than another specific series.

[0098] Furthermore, the identification of the sensing sequence may be automatically determined according to a setting in a higher layer. For example, if the transmission of the sensing sequence is permitted in the higher layer, it may be defined that "the X bits from the LSB of the sequence generated by multiplexing are the sensing sequence."

[0099] The information section 310 may be generated in accordance with an existing header format, such as a MAC PDU header, a MAC subPDU header, an RLC PDU header, and a PDCP PDU header.

[0100] <Configuration of Information Section> Fig. 24 is a diagram showing an example configuration of the information section according to the first embodiment of the present disclosure. The same figure shows an example configuration of the information section 310. The sizes of the fields allocated to the information indicating that it is a sensing sequence and the information regarding the size of the storage section 320 may be other than those shown in the same figure. Here, R and F indicate optional reserved bits.

[0101] <Storage Unit> FIG. 25 is a diagram illustrating an example configuration of a storage unit according to the first embodiment of the present disclosure. This diagram illustrates an example configuration of the storage unit 320. The storage unit 320 stores a bit sequence having a size determined by the information in the information unit 310 or semi-static or dynamic information notification. The first row of the storage unit 320 in this diagram illustrates an example configured with a bit sequence of all "0". The second row of the storage unit 320 in this diagram illustrates an example configured with a bit sequence of all "1". The third row of the storage unit 320 in this diagram illustrates an example configured with a randomly generated bit sequence. The fourth row of the storage unit 320 in this diagram illustrates an example configured with a bit sequence of information related to the sequence. Here, the information related to the sequence is, for example, information included in the information unit 310. The information related to the sequence may be repeated within the size of the storage unit 320.

[0102] The size of the storage unit 320 may be defined in association with a specific element. For example, the size of the storage unit 320 may be defined as the size of one coding unit in physical layer coding. For example, the size of the storage unit 320 may be defined as a value larger than the size of one coding unit in physical layer coding. For example, the size of the storage unit 320 may be defined as an integer multiple of the size of one coding unit in physical layer coding. For example, the size of the storage unit 320 may be defined as a value larger than the bit sequence of the sensing result.

[0103] <Multiplexing> Multiplexing is a process of concatenating a sensing sequence with other sequences to generate a single transmission sequence. By giving characteristics to the multiplexing, it becomes possible to estimate the position of the TB in the physical layer where the sensing sequence is included. When multiplexing a sensing sequence, the following characteristics can be given.

[0104] (1) The sensing sequence is characterized by being placed at the end of the transmission sequence. In this case, a special priority may be assigned to the sensing sequence in order to place the sensing sequence at the end of the transmission sequence. Furthermore, in order to place the sensing sequence at the end of the transmission sequence, when a setting related to the sensing sequence is implemented in an upper layer, it may be implicitly determined that the sensing sequence is placed at the end of the MAC PDU. (2) The sensing sequence is characterized by being placed at any position in the transmission sequence.

[0105] The use of either the above-mentioned arrangement feature (1) or (2) may be determined by semi-static or dynamic information, and this information may be notified to the receiving communication device by a notification from the transmitting communication device.

[0106] <Reception Processing> After executing sensing, the terminal device 10 stores the sensing results in a sensing sequence. First, the terminal device 10 detects the position of the sensing sequence from the reception sequence generated by the decoding processing.

[0107] 26 is a diagram illustrating an example of a processing procedure for sensing sequence position detection processing according to the first embodiment of the present disclosure. First, the control unit 13 determines whether sensing sequence transmission is permitted (step S201). If sensing sequence transmission is permitted (step S201, Yes), the control unit 13 determines whether the received sequence includes the sensing sequence (step S202). If the received sequence includes the sensing sequence (step S202, Yes), the control unit 13 determines whether the sensing sequence position has been notified (step S203). If the sensing sequence position has been notified (step S203, Yes), the sensing sequence position detection unit 115 detects the sensing sequence position based on the notified information (step S204). On the other hand, if the sensing sequence position has not been notified (step S203, No), the correlation acquisition processing (step S210) is executed to detect the sensing sequence position. If the transmission of the sensing sequence is not permitted (step S201, No) or if the received sequence does not include the sensing sequence (step S202, No), the control unit 13 ends the process.

[0108] The detection of the sensing sequence position is performed using the following two methods. (1) Detecting the sensing sequence position based on information notified in advance If the terminal device 10 knows the position in the received sequence where the information is included due to notification of quasi-static or dynamic information about the sensing sequence, the terminal device 10 detects the position of the sensing sequence based on that information. Examples of information about the position in the received sequence where the information is included include the position of any bit in the received sequence, the beginning or end of the received sequence, and the size of the sensing sequence. The terminal device 10 may be notified of any one or more of these pieces of information. If the size of the sensing sequence is known to the terminal device 10 and the beginning position of the sensing sequence can be detected using any method, the terminal device 10 determines that the bit sequence corresponding to the size of the sensing sequence from the detected beginning position of the sensing sequence is the sensing sequence.

[0109] (2) Performing correlation acquisition processing using the received sequence If the position of the sensing sequence has not been notified in advance and is not known to the terminal device 10, the terminal device 10 performs correlation acquisition processing using the received sequence.

[0110] 27 is a diagram showing an example of a processing procedure of the correlation acquisition processing according to the first embodiment of the present disclosure. The processing in the figure represents the correlation acquisition processing (step S210) in FIG. 26. The correlation acquisition processing is composed of a pre-processing step 220 and a post-processing step 230. In the pre-processing step 220 and the post-processing step 230, the sensing sequence position detection unit 115 detects the position of the storage unit 320 in the sensing sequence 300.

[0111] 28 is a diagram showing an example of a processing procedure of the pre-stage processing according to the first embodiment of the present disclosure. The processing in this figure represents the pre-stage processing (step S220) of FIG. 27. The control unit 13 determines whether the bit sequence information of the storage unit 320 has been notified (step S221). If the bit sequence information of the storage unit 320 has been notified (step S221, Yes), the control unit 13 determines whether all of the bit sequences of the storage unit 320 are known (step S222). If all of the bit sequences of the storage unit 320 are known (step S222, Yes), the sensing sequence position detection unit 115 obtains a correlation between the bit sequence of the storage unit 320 and the received sequence (step S223).

[0112] In step S222, if the entire bit sequence in the storage unit 320 is not known (step S222, No), the control unit 13 determines whether a portion of the bit sequence in the storage unit 320 is known (step S224). If a portion of the bit sequence in the storage unit 320 is known (step S224, Yes), the sensing sequence position detection unit 115 obtains a correlation between a portion of the bit sequence in the storage unit 320 and the received sequence (step S225). If a portion of the bit sequence in the storage unit 320 is not known (step S224, No), the sensing sequence position detection unit 115 obtains an autocorrelation using the received sequence (step S226). Also, if the bit sequence information in the storage unit has not been notified in step S221 (step S221, No), the sensing sequence position detection unit 115 obtains an autocorrelation using the received sequence (step S226). Then, the process returns to FIG. 27 .

[0113] As described above, when the terminal device 10 knows information about the bit sequence in storage unit 320 and knows the entire bit sequence in storage unit 320, the terminal device 10 acquires the cross-correlation between the known bit sequence in storage unit 320 and the received sequence. Furthermore, when the terminal device 10 knows information about the bit sequence in storage unit 320 and knows only a portion of the bit sequence in storage unit 320, the terminal device 10 acquires the cross-correlation between the known portion of the bits in storage unit 320 and the received sequence. Furthermore, when the terminal device 10 does not know information about the bit sequence in storage unit 320, the terminal device 10 acquires the autocorrelation of the received sequence. Furthermore, even when the terminal device 10 has been notified of information about the bit sequence in storage unit 320 but the information is not information about the bit sequence in storage unit 320 itself, the terminal device 10 still acquires the autocorrelation of the received sequence. In addition, when information regarding the bit sequence in storage unit 320 is notified in terminal device 10, the information is not information about the bit sequence in storage unit 320 itself, for example, when storage unit 320 is composed of a repetition of some sequence.

[0114] FIG. 29 is a diagram illustrating an example of a processing procedure for the latter-stage processing according to the first embodiment of the present disclosure. The processing in FIG. 29 illustrates the latter-stage processing (step S230) of FIG. 27 . The sensing sequence position detection unit 115 determines whether the correlation value acquired in the former-stage processing 220 is a cross-correlation sequence (step S231). If the correlation value is a cross-correlation sequence (step S231, Yes), the sensing sequence position detection unit 115 determines whether the size of the storage unit 320 is known (step S232). If the size of the storage unit is known (step S232, Yes), the sensing sequence position detection unit 115 determines that the position with the highest correlation value is the beginning of the storage unit 320 (step S233). Next, the sensing sequence position detection unit 115 detects the storage unit 320 based on the beginning and size (step S234).

[0115] In step S232, if the size of the storage section is not known (step S232, No), the sensing sequence position detection unit 115 sets the position with the highest correlation value as the beginning of the storage section (step S235). Also, in step S231, if the correlation value is not a cross-correlation sequence (step S231, No), the sensing sequence position detection unit 115 detects an area where a bit sequence is repeated as the storage section (step S236). Then, the process returns to the process of FIG. 27.

[0116] If the acquired correlation information is obtained by cross-correlation and the size of the storage unit 320 is known, the terminal device 10 defines the position of the bit with the highest correlation value as the beginning, and defines the area of ​​the storage unit 320 from that position as the size of the storage unit 320. For example, if the terminal device 10 knows all of the bit sequences in the storage unit 320 in the pre-processing (S220), it is assumed that the terminal device 10 also knows the size of the storage unit 320. Furthermore, if the acquired correlation information is obtained by cross-correlation and the size of the storage unit 320 is not known, the terminal device 10 defines the position of the bit with the highest correlation value as the beginning. Furthermore, if the acquired correlation information is obtained by autocorrelation, the terminal device 10 expects that correlation values ​​will be repeated. This is because, when acquiring autocorrelation, it is assumed that the storage unit 320 is configured with some kind of repeated sequence.

[0117] 30 is a diagram illustrating an example of correlation value repetition according to the first embodiment of the present disclosure. This diagram explains the above-described correlation value repetition. When a specific sequence is repeated as shown in this diagram, the size of the specific sequence is detected from the repetition area. Then, the size of the storage unit 320 can be determined from the product of the number of correlation repetitions and the size of the specific correlation, starting from the first bit position with the strongest correlation value.

[0118] If the size of the information section 310 is known, the position of the entire sensing sequence can be detected from the beginning position of the storage section 320 .

[0119] If the quasi-static information regarding the sensing series indicates that transmission of the sensing series is not permitted, or if the terminal device 10 does not know from the dynamic information regarding the sensing series whether the sensing series is included in the received series, the above-mentioned sensing series detection process is not performed.

[0120] When storing the sensing results, the terminal device 10 can execute one of the following methods: (1) The sensing results are stored by rewriting part of the received sequence based on the result of sensing sequence position detection; (2) The sensing results are concatenated to the beginning or end of the received sequence. For example, if the sensing sequence does not have a storage section 320 (lower part of Figure 22), the sensing results can be concatenated following the information section 310 of the sensing sequence.

[0121] If the storage location of the sensing result cannot be identified or if there is a defect in the sensing result, the terminal device 10 may request the base station device 20 to retransmit the sensing result.

[0122] <Demultiplexing> The control unit 13, which corresponds to the upper layer of the terminal device 10, performs demultiplexing processing based on the information in the sensing sequence information unit 310.

[0123] In this way, in the terminal device 10 according to the first embodiment of the present disclosure, the sensing results in the lower layer are stored in a sensing sequence that is placed in transmission data and transmitted to the upper layer. This allows the sensing results to be processed in the upper layer. This reduces the transmission of the sensing results to the base station device 20, thereby reducing the processing load on the terminal device 10.

[0124] 6. Second Embodiment In the base station device 20 of the first embodiment described above, a sensing sequence is arranged in transmission data. In contrast, the base station device 20 of the second embodiment of the present disclosure differs from the first embodiment described above in that a part of a transmission sequence is stored in the sensing sequence storage unit 320.

[0125] In the base station device 20 according to the second embodiment of the present disclosure, a portion of a transmission sequence is stored in a sensing sequence storage unit 320 in order to improve the frequency utilization efficiency of the transmission sequence. The sensing sequence, particularly the storage unit 320, does not contain any information at the time of transmission. This results in inefficient transmission in terms of the entropy of information transmission. By inserting a portion of the transmission sequence into this storage unit 320, redundancy in the transmission sequence can be obtained, thereby improving reliability.

[0126] In this embodiment, a condition may be that at least the size of the sensing sequence storage unit 320 is larger than CB. It is desirable to determine whether to execute this embodiment by semi-static notification. Information regarding whether to execute the processing of this embodiment or the storage location of the code block may be indicated by, for example, a notification (such as, but not limited to, PRACH, RACH, PDU session establishment, RRC connection establishment, RCC reconfiguration, PDCCH, CCCH, PUCCH, DCI, etc.).

[0127] <Transmission Processing> When storing a part of a transmission sequence in the sensing sequence area, the following method can be followed.

[0128] (1) When the position of the sensing sequence within the transmission sequence is known to the physical layer When the position of the sensing sequence within the transmission sequence is known to the physical layer, the base station device 20 can insert a portion of the transmission sequence following the sensing sequence storage section 320 or information section 310. Note that the portion of the transmission sequence is preferably one or more division units in the division process of the transmission sequence performed by the base station device 20. Here, the division units in the division process of the transmission sequence are, for example, CBs, codewords, and coding units.

[0129] The storage position of the part of the transmission sequence can be the beginning of the storage unit 320. The storage position of the part of the transmission sequence can also be a position where the end of the storage unit 320 is the same as the end of the part of the transmission sequence. Note that the part of the transmission sequence can also be stored in a position other than the above positions that fits into the storage unit 320.

[0130] 31 is a diagram illustrating an example of storage of a portion of a transmission sequence according to a second embodiment of the present disclosure. The target area for storing the portion of the transmission sequence is expected to be a division unit area consisting only of a storage section for a sensing sequence. This figure illustrates storage of a portion of the transmission sequence when CB is selected as the division unit.

[0131] 32 is a diagram showing another example of storing a portion of a transmission sequence according to the second embodiment of the present disclosure. When a sensing sequence does not have a storage section 320, the portion of the transmission sequence can be concatenated adjacent to the information section 310. This figure shows an example of this case, in which a sensing sequence without a storage section 320 is located at the end of a TB, and a CB is stored in that area. In this figure, the "sensing sequence size" is obtained from the information included in the information section 310.

[0132] (2) When the physical layer does not know the position of the sensing sequence within the transmission sequence, the correlation is acquired for the transmission sequence, and the position of the sensing sequence is estimated. The estimation method can be the same as the "sensing result storage" in the reception process described later. Next, the process (1) above is executed.

[0133] In the above cases (1) and (2), information about the part of the transmission sequence to be replicated may be shared in advance between the base station apparatus 20 and the terminal apparatus 10. The shared information may be, for example, information about the position of the part in the transmission sequence and information about the size.

[0134] <Reception Processing> When performing correlation output using a received sequence and detecting the start position of the storage unit 320, the following method can be additionally implemented. When detecting correlation between a certain known sequence and a received sequence, the terminal device 10 uses a portion of the received sequence as the certain known sequence. Furthermore, it can be expected that the portion of the received sequence is equal to a portion of the transmitted sequence executed in signal processing in the base station device 20. In this case, the position with the highest correlation becomes the position in the storage unit. Which position in the storage unit this corresponds to depends on the method of inserting the portion of the transmitted sequence in the base station device 20.

[0135] When detecting autocorrelation in a received sequence, the terminal device 10 can define the position with the highest correlation as the position in the storage unit 320. This method is effective when part of the transmitted sequence inserted by the base station device 20 is composed of the beginning of the transmitted sequence.

[0136] The terminal device 10 may be notified of an identification number of a part of the transmission sequence as information on the location of the sensing sequence storage unit 320.

[0137] The receiving processing unit 112 acquires a portion of the transmission sequence from the sensing sequence. Next, if either the acquired sequence or the original sequence is correctly decoded, the receiving processing unit 112 can determine that the sequence has been correctly decoded. Next, the sensing result storage unit 116 stores the sensing result in the sensing sequence. At this time, the size of the sensing result may be equal to or processed to be equal to the size of the portion of the transmission sequence. The processing method may be, for example, zero padding.

[0138] The configurations of the base station device 20 and the terminal device 10 other than those described above are the same as the configurations of the base station device 20 and the terminal device 10 in the first embodiment of the present disclosure, and therefore description thereof will be omitted.

[0139] In this way, the base station device 20 according to the second embodiment of the present disclosure stores a portion of the transmission data in the sensing sequence and transmits the same. The terminal device 10 performs decoding processing based on the portion of the transmission data. This can improve frequency utilization efficiency.

[0140] <<Other Modifications>> The base station device 20 and the control device that controls the terminal device 10 of this embodiment may be realized by a dedicated computer system or a general-purpose computer system.

[0141] For example, a communication program for executing the above-described operations is stored in a computer-readable recording medium such as an optical disk, a semiconductor memory, a magnetic tape, or a flexible disk and distributed. Then, for example, the program is installed in a computer and the above-described processing is executed to configure a control device. In this case, the control device may be a device external to the terminal device 10 or the base station device 20 (for example, a personal computer). Alternatively, the control device may be a device internal to the terminal device 10 or the base station device 20 (for example, the control unit 13 or the control unit 23).

[0142] The communication program may also be stored in a disk device provided in a server device on a network such as the Internet, and may be downloaded to a computer. The above-described functions may also be realized by a combination of an operating system (OS) and application software. In this case, the components other than the OS may be stored on a medium and distributed, or may be stored in a server device and downloaded to a computer.

[0143] Furthermore, among the processes described in the above embodiments, all or part of the processes described as being performed automatically can be performed manually, or all or part of the processes described as being performed manually can be performed automatically using a known method. In addition, the information including the processing procedures, specific names, various data, and parameters shown in the above documents and drawings can be changed as desired unless otherwise specified. For example, the various information shown in each drawing is not limited to the information shown in the drawings.

[0144] Furthermore, the components of each device shown in the figure are conceptual functional units and do not necessarily have to be physically configured as shown. In other words, the specific form of distribution and integration of each device is not limited to that shown in the figure, and all or part of the devices can be functionally or physically distributed and integrated in any unit depending on various loads, usage conditions, etc. Note that this distribution and integration configuration may also be performed dynamically.

[0145] The above-described embodiments can be combined as appropriate within the scope of the present invention without causing any inconsistency in the processing content. The order of the steps shown in the flowcharts of the above-described embodiments can be changed as appropriate.

[0146] Furthermore, for example, the present embodiment can also be implemented as any configuration that constitutes an apparatus or system, such as a processor as a system LSI (Large Scale Integration), a module using multiple processors, a unit using multiple modules, a set in which other functions are added to a unit, or the like (i.e., a configuration of a part of an apparatus).

[0147] In this embodiment, a system refers to a collection of multiple components (devices, modules (components), etc.), regardless of whether all of the components are in the same housing. Therefore, multiple devices housed in separate housings and connected via a network, and a single device in which multiple modules are housed in a single housing, are both systems.

[0148] Furthermore, for example, this embodiment can have a cloud computing configuration in which one function is shared and processed jointly by a plurality of devices via a network.

[0149] Although the embodiments of the present disclosure have been described above, the technical scope of the present disclosure is not limited to the above-described embodiments, and various modifications are possible within the scope of the gist of the present disclosure. Furthermore, components of different embodiments and modifications may be combined as appropriate.

[0150] The series of processes performed by each device described in this specification may be realized using software, hardware, or a combination of software and hardware. The programs constituting the software are stored in advance, for example, in a storage medium (non-transitory medium) provided inside or outside each device. Then, each program is loaded into RAM when executed by a computer, and executed by a processor such as a CPU.

[0151] Furthermore, the processes described herein using flowcharts and sequence diagrams do not necessarily have to be performed in the order shown. Some process steps may be performed in parallel. Furthermore, additional process steps may be employed, and some process steps may be omitted.

[0152] The effects described in this specification are merely examples and are not limiting, and other effects may also be present.

[0153] The present technology can also be configured as follows. (1) A receiving-side communication device having: a reception processing unit that receives, from a transmitting-side communication device, transmission data including a sensing sequence that is an area for storing results of sensing for detecting the position of an object; a sensing unit that performs the sensing; and a sensing result storage unit that stores the results of the sensing in the sensing sequence. (2) The receiving-side communication device described in (1), wherein the sensing sequence includes an information unit that stores information of the sensing sequence, and the sensing result storage unit stores the results of the sensing in the sensing sequence based on the information of the sensing sequence. (3) The receiving-side communication device described in (2), wherein the information unit is located at either the beginning or the end of the sensing sequence. (4) The receiving-side communication device described in (2), wherein the information of the sensing sequence is information indicating that the area is the sensing sequence. (5) The receiving-side communication device described in (2), wherein the sensing result storage unit concatenates the results of the sensing to a position following the information unit. (6) The receiving communication device according to (2), further comprising a storage unit in which the sensing sequence is stored, and the sensing result storage unit stores the sensing result in the storage unit. (7) The receiving communication device according to (6), wherein the information on the sensing sequence is the size of the storage unit. (8) The transmitting communication device transmits the transmission data in which a portion of the transmission data is stored in the storage unit, and the reception processing unit performs decoding processing based on the portion of the transmission data stored in the storage unit. (9) The receiving communication device according to any of (1) to (8), further comprising a sensing sequence position detection unit that detects the position of the sensing sequence in the transmission data, and the sensing result storage unit stores the sensing result in the sensing sequence at the detected position. (10) The receiving communication device according to (9), wherein the sensing sequence position detection unit detects a predetermined position in the transmission data as the position of the sensing sequence.(11) The receiving communication device according to (9), wherein the sensing sequence position detection unit detects the position of the sensing sequence based on position information notified from the transmitting communication device. (12) The receiving communication device according to (9), wherein the sensing sequence position detection unit detects the position of the sensing sequence based on the transmission data. (13) The receiving communication device according to any of (1) to (12), further comprising a control unit that acquires the sensing results stored in the sensing sequence. (14) The receiving communication device according to (13), further comprising an information processing unit that processes the acquired sensing results. (15) The receiving communication device according to any of (1) to (14), wherein the sensing sequence is configured to a size based on a unit of error correction coding in the transmitting communication device. (16) A transmitting communication device having a transmission processing unit that transmits transmission data including a sensing sequence that is an area for storing sensing results for detecting the position of an object. (17) The transmitting communication device according to (16), wherein the transmission processing unit transmits the transmission data including the sensing sequence, the transmission processing unit having an information unit in which information of the sensing sequence is stored. (18) The transmitting communication device according to (17), wherein the transmission processing unit transmits the transmission data including the sensing sequence, the transmission processing unit further having a storage unit in which the sensing results are stored. (19) The transmitting communication device according to (18), wherein the transmission processing unit transmits the transmission data, a portion of which has been stored in the storage unit. (20) A communication method comprising: receiving, from a transmitting communication device, transmission data including a sensing sequence that is an area for storing the results of sensing for detecting the position of an object; performing the sensing; and storing the results of the sensing in the sensing sequence. (21) A communication method comprising: transmitting transmission data including a sensing sequence that is an area for storing the results of sensing for detecting the position of an object.

[0154] 10 Terminal device 13, 23 Control unit 20 Base station device 111, 211 Transmission processing unit 112, 212 Reception processing unit 114 Sensing unit 115 Sensing sequence position detection unit 116 Sensing result storage unit 131 Information processing unit 300 Sensing sequence 310 Information unit 320 Storage unit

Claims

1. A receiving communication device having a receiving processing unit that receives transmission data from a transmitting communication device, the transmission data including a sensing sequence that is an area for storing the results of sensing for detecting the position of an object, a sensing unit that performs the sensing, and a sensing result storage unit that stores the results of the sensing in the sensing sequence.

2. The receiving communication device according to claim 1, wherein the sensing sequence comprises an information section in which information about the sensing sequence is stored, and the sensing result storage section stores the results of the sensing in the sensing sequence based on the information about the sensing sequence.

3. The receiving-side communication device according to claim 2, wherein the information section is placed at either the beginning or the end of the sensing sequence.

4. The receiving communication device according to claim 2, wherein the sensing sequence information is information indicating that the area is the sensing sequence.

5. The receiver communication device according to claim 2, wherein the sensing result storage section links the sensing result to a position following the information section.

6. The receiver communication device according to claim 2, wherein the sensing sequence further comprises a storage unit in which the results of the sensing are stored, and the sensing result storage unit stores the results of the sensing in the storage unit.

7. The receiver communication device according to claim 6, wherein the sensing sequence information is the size of the storage section.

8. The receiving communication device according to claim 6, wherein the transmitting communication device transmits the transmission data, a portion of which is stored in the storage unit, and the receiving processing unit performs decoding processing based on the portion of the transmission data stored in the storage unit.

9. The receiving-side communication device according to claim 1, further comprising a sensing sequence position detection unit that detects the position of the sensing sequence in the transmission data, and wherein the sensing result storage unit stores the sensing result in the sensing sequence at the detected position.

10. The receiving communication device according to claim 9, wherein the sensing sequence position detection unit detects a predetermined position in the transmission data as the position of the sensing sequence.

11. The receiving communication device according to claim 9, wherein the sensing sequence position detection unit detects the position of the sensing sequence based on position information notified from the transmitting communication device.

12. The receiver communication device according to claim 9, wherein the sensing sequence position detector detects the position of the sensing sequence based on the transmission data.

13. The receiver communication device according to claim 1, further comprising a control unit that acquires the sensing results stored in the sensing sequence.

14. The receiver communication device according to claim 13, further comprising an information processing unit for processing the acquired sensing results.

15. The receiving communication device according to claim 1, wherein the sensing sequence is configured to a size based on the unit of error correction coding in the transmitting communication device.

16. A transmitting communication device having a transmission processing unit that transmits transmission data including a sensing sequence that is an area for storing the results of sensing for detecting the position of an object.

17. The transmitting communication device according to claim 16, wherein the transmission processing unit transmits the transmission data including the sensing sequence, the transmission data including the sensing sequence having an information section in which information about the sensing sequence is stored.

18. The transmitting communication device according to claim 17, wherein the transmission processing unit transmits the transmission data including the sensing sequence, further comprising a storage unit for storing the results of the sensing.

19. The transmitting communication device according to claim 18, wherein the transmission processing unit transmits the transmission data, part of which has been stored in the storage unit.

20. A communication method comprising: receiving transmission data from a transmitting communication device, the transmission data including a sensing sequence, which is an area for storing the results of sensing for detecting the position of an object; performing the sensing; and storing the results of the sensing in the sensing sequence.

21. A communication method including transmitting transmission data including a sensing sequence, which is an area for storing the results of sensing for detecting the position of an object.

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