Communication methods, communication device, storage medium and program product

Abstract

The present disclosure relates to communication methods, a communication device, a storage medium and a program product, belonging to the technical field of communications. A method comprises: receiving a sensing reference signal; and measuring the sensing reference signal on the basis of a measurement reference point. It can be determined that, in sensing scenarios, the definition of a measurement indicator for measuring a sensing reference signal and a reference point enable a terminal to measure the sensing reference signal.

Description

Communication methods, communication equipment, storage media and software products Technical Field

[0001] This disclosure relates to the field of communication technology, and in particular to communication methods, communication devices, storage media, and program products. Background Technology

[0002] In the field of communications, Integrated Sensing and Communication (ISAC) technology will become a key technology for future wireless systems to support many important application scenarios. Summary of the Invention

[0003] This disclosure provides a communication method, communication device, storage medium, and program product that can be used in the field of communication technology to define indicators of a terminal's measurement behavior and measurement reports for ISAC, especially reference points.

[0004] According to a first aspect of the present disclosure, a communication method is proposed, executed by a terminal device, comprising: receiving a sensing reference signal; and measuring the sensing reference signal based on a measurement reference point.

[0005] According to a second aspect of the present disclosure, a communication method is provided, performed by a network device, comprising: transmitting a sensing reference signal, the sensing reference signal being used by a terminal device to perform measurements based on a measurement reference point.

[0006] According to a third aspect of the present disclosure, a communication device is provided that can implement the communication methods described in the first and second aspects of the present disclosure.

[0007] According to a fourth aspect of the present disclosure, a computer storage medium is provided, wherein the computer storage medium stores computer-executable instructions; after being executed by a processor, the computer-executable instructions are able to implement the communication method described in any one of the first and second aspects of the present disclosure.

[0008] According to a fifth aspect of the present disclosure, a program product is provided, including at least one of a program and instructions, wherein when the program and instructions are executed by a communication device, they implement the communication method described in any one of the first and second aspects of the present disclosure.

[0009] According to the communication method proposed in the embodiments of this disclosure, the definition of the measurement index and the reference point for measuring the sensing reference signal in a sensing scenario can be determined, and the terminal can measure the sensing reference signal. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings required for the description of the embodiments are introduced below. The following drawings are only some embodiments of this disclosure and do not impose specific limitations on the protection scope of this disclosure.

[0011] Figure 1 is a schematic diagram of the architecture of a communication system provided according to an embodiment of the present disclosure;

[0012] Figure 2 is an interactive schematic diagram of a communication method provided according to an embodiment of the present disclosure;

[0013] Figure 3 is an interactive schematic diagram of another communication method provided according to an embodiment of the present disclosure;

[0014] Figure 4 is a schematic diagram of a measurement reference point provided according to an embodiment of the present disclosure;

[0015] Figure 5A is a schematic diagram of the structure of a terminal provided according to an embodiment of the present disclosure;

[0016] Figure 5B is a schematic diagram of the structure of a network device provided according to an embodiment of the present disclosure;

[0017] Figure 6A is a schematic diagram of the structure of a communication device according to an embodiment of the present disclosure;

[0018] Figure 6B is a schematic diagram of the chip structure proposed in an embodiment of this disclosure. Detailed Implementation

[0019] This disclosure provides a communication method, communication device, storage medium, and program product.

[0020] In a first aspect, embodiments of this disclosure provide a communication method executed by a terminal device, comprising: receiving a sensing reference signal; and measuring the sensing reference signal based on a measurement reference point.

[0021] In the above embodiments, the definition of the measurement index and the reference point for measuring the sensing reference signal in the sensing scenario can be determined, and the terminal can measure the sensing reference signal.

[0022] In conjunction with some embodiments of the first aspect, in some embodiments, measuring the sensed reference signal based on a measurement reference point includes at least one of the following: using the internal connection port reference point of the antenna of the terminal device as the measurement reference point, measuring the power-related quantity of the sensed reference signal; using the external direct connection reference point of the antenna of the terminal device as the measurement reference point, measuring at least one of the time-related quantity, frequency-related quantity, and angle-related quantity of the sensed reference signal.

[0023] In the above embodiments, a reference point can be determined so that the terminal can measure the sensed reference signal based on the reference point, which facilitates subsequent optimization of communication quality based on the measurement value, etc.

[0024] In conjunction with some embodiments of the first aspect, in some embodiments, the reference point of the internal connection port of the antenna is the receiving point of the terminal device after multiple transmit beams transmitted by multiple antenna elements of the combined network device.

[0025] In the above embodiments, the reference point can be determined as an internal reference point, which can ensure that the power measurement can capture the analog beamforming gain brought by the antenna unit combination, so that the terminal can measure the sensing reference signal based on the reference point, which is convenient for subsequent optimization of communication quality based on the measurement value, etc.

[0026] In conjunction with some embodiments of the first aspect, in some embodiments, the direct external connection reference point of the antenna is the receiving point of the terminal device before the multiple transmit beams transmitted by the multiple antenna elements of the combined network device; or, the direct external connection reference point of the antenna is the antenna connection point of the terminal device.

[0027] In the above embodiments, the reference point can be determined as an external reference point, which can avoid errors introduced by the antenna unit combination that lead to inaccurate measurement values. This allows the terminal to measure the sensing reference signal based on the reference point, which facilitates subsequent optimization of communication quality based on the measurement values, etc.

[0028] In conjunction with some embodiments of the first aspect, in some embodiments, power-related measurements include at least one of the following: signal-to-interference-plus-noise ratio (SINR); reference signal received power (RSRP); reference signal received quality (RSRQ); received signal strength indication (RSSI); time-related measurements include: reference signal time difference (RSTD); power-related measurements include: Doppler frequency shift; angle-related measurements include at least one of the following: departure azimuth (AOD); arrival azimuth (AOA); departure zenith angle (ZOD); arrival zenith angle (ZOA).

[0029] In the above embodiments, the measurement quantity can be determined so that the terminal can measure the sensing reference signal based on the reference point, which facilitates subsequent optimization of communication quality, etc., based on the measurement value.

[0030] In conjunction with some embodiments of the first aspect, in some embodiments, a reference point directly connected to the antenna of the terminal device is used as the measurement reference point, and the time-related measurement of the sensed reference signal is measured, including: determining the time T for receiving the sensed reference signal based on the reference point directly connected to the antenna. SubframeRxj And T SubframeRxi ; where T SubframeRxj T is the start time at which the terminal device receives a subframe from sending point j. SubframeRxi The starting time at which the terminal device receives a subframe from transmission point i is defined as the time-closest subframe to transmission point j; the value of the time-related measurement of the sensing reference signal is determined to be T.SubframeRxj With T SubframeRxi difference.

[0031] In the above embodiments, measurement values ​​can be determined so that the terminal can optimize communication quality, etc., based on the measurement values.

[0032] In conjunction with some embodiments of the first aspect, in some embodiments, a reference point directly connected to the antenna of the terminal device is used as the measurement reference point, and the frequency-related measurement quantity of the sensed reference signal is measured, including: determining the Doppler frequency shift DF of the received sensed reference signal based on the reference point directly connected to the antenna. UE-RX and DF UE-TX ; where DF UE-RX DF is the Doppler frequency shift of the sensed reference signal received by the terminal device from the transmitting point in subframe p of the downlink. UE-TX The Doppler shift of the sensing reference signal transmitted by the terminal device in subframe q of the uplink is defined as the subframe that is temporally closest to subframe p; the value of the frequency-dependent measurement of the sensing reference signal is determined to be DF. UE-RX With DF UE-TX difference.

[0033] In the above embodiments, measurement values ​​can be determined so that the terminal can optimize communication quality, etc., based on the measurement values.

[0034] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: compensating for and calibrating the delay between the antenna and the baseband module of the terminal device during testing based on at least one of time-related measurements, frequency-related measurements, and angle-related measurements obtained by measuring a reference point directly connected to the outside of the antenna.

[0035] In the above embodiments, the delay between the antenna and the baseband module of the terminal device can be compensated and calibrated to reduce the error of the measurement value.

[0036] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes: sending the value of the measured quantity obtained from the measurement sensing reference signal to the network device.

[0037] In the above embodiments, measurement results can be reported to network devices to optimize communication quality, etc., based on the measurement results.

[0038] Secondly, embodiments of this disclosure provide a communication method executed by a network device, comprising: sending a sensing reference signal, the sensing reference signal being used by a terminal device to perform measurements based on a measurement reference point.

[0039] In conjunction with some embodiments of the second aspect, in some embodiments, the measurement reference point is related to the quantity to be measured.

[0040] In conjunction with some embodiments of the second aspect, in some embodiments, the quantity to be measured is a power-related quantity, and the measurement reference point is the internal connection port reference point of the antenna of the terminal device; the quantity to be measured is at least one of time-related quantity, frequency-related quantity, and angle-related quantity, and the measurement reference point is the external direct connection reference point of the antenna of the terminal device.

[0041] In conjunction with some embodiments of the second aspect, in some embodiments, the reference point of the internal connection port of the antenna is the receiving point of the terminal device after multiple transmit beams transmitted by multiple antenna elements of the combined network device.

[0042] In conjunction with some embodiments of the second aspect, in some embodiments, the direct external connection reference point of the antenna is the receiving point of the terminal device before the multiple transmit beams transmitted by the multiple antenna elements of the combined network device; or, the direct external connection reference point of the antenna is the antenna connection point of the terminal device.

[0043] In conjunction with some embodiments of the second aspect, in some embodiments, power-related measurements include at least one of the following: signal-to-interference-plus-noise ratio (SINR); reference signal received power (RSRP); reference signal received quality (RSRQ); received signal strength indication (RSSI); time-related measurements include: reference signal time difference (RSTD); power-related measurements include: Doppler frequency shift; angle-related measurements include at least one of the following: departure azimuth (AOD); arrival azimuth (AOA); departure zenith angle (ZOD); arrival zenith angle (ZOA).

[0044] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes: receiving the value of a measurement quantity obtained by the terminal device from a measurement sensing reference signal.

[0045] Thirdly, embodiments of this disclosure provide a communication device for performing the methods described in any one of the first and second aspects of embodiments of this disclosure.

[0046] Fourthly, embodiments of this disclosure provide a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform the method described in any one of the first or second aspects of embodiments of this disclosure.

[0047] Fifthly, embodiments of this disclosure provide a program product, including at least one of a program and instructions, wherein when the program or instructions are executed by a communication device, they implement the steps of the method described in any one of the first and second aspects of embodiments of this disclosure.

[0048] It is understood that the aforementioned communication equipment, storage medium, and program product are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects they can achieve can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.

[0049] This disclosure provides a communication method, a communication device, a communication system, a storage medium, and a program product. In some embodiments, terms such as communication method and information processing method can be used interchangeably, as can terms such as network device, information processing apparatus, and communication apparatus, and terms such as information processing system and communication system.

[0050] This disclosure is not exhaustive, but merely illustrative of some embodiments, and is not intended to limit the scope of protection of this disclosure. Unless otherwise specified, each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged. Furthermore, the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments. In all embodiments of this disclosure, unless otherwise specified or logically conflicting, the terminology and / or descriptions between the embodiments are consistent and can be mutually referenced. Technical features in different embodiments can be combined to form new embodiments based on their inherent logical relationships.

[0051] The terminology used in the embodiments of this disclosure is for the purpose of describing particular embodiments only and is not intended to limit the scope of this disclosure.

[0052] In this embodiment of the disclosure, unless otherwise stated, elements expressed in the singular form, such as "a," "an," "the," "the aforementioned," "the," "this," etc., can mean "one and only one," or "one or more," "at least one," etc. For example, when using articles such as "a," "an," "the," etc. in translation, the noun following the article can be understood as either a singular expression or a plural expression.

[0053] In the embodiments disclosed herein, "multiple" refers to two or more.

[0054] In some embodiments, the terms "at least one of A or B, at least one of A and B", "one or more", "a plurality of", "multiple" and the like can be used interchangeably.

[0055] In some embodiments, the notation "at least one of A and B", "A and / or B", "A in one case, B in another", "in response to one case A, in response to another case B", etc., may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of whether there is a branch B); in some embodiments, B (execute B regardless of whether there is a branch A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, both A and B are executed. The same applies when there are more branches such as A, B, C, etc.

[0056] In some embodiments, the notation "A or B" may include the following technical solutions, depending on the situation: in some embodiments, A (execute A regardless of whether a branch B exists); in some embodiments, B (execute B regardless of whether a branch A exists); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, and C.

[0057] The prefixes "first," "second," etc., used in the embodiments of this disclosure are merely for distinguishing different descriptive objects and do not impose restrictions on the position, order, priority, quantity, or content of the descriptive objects. The description of the descriptive objects is found in the claims or the context of the embodiments, and the use of prefixes should not constitute unnecessary restrictions. For example, if the descriptive object is a "field," the ordinal numbers preceding "field" in "first field" and "second field" do not restrict the position or order of the "fields." "First" and "second" do not restrict whether the "fields" they modify are in the same message, nor do they restrict the order of "first field" and "second field." Similarly, if the descriptive object is a "level," the ordinal numbers preceding "level" in "first level" and "second level" do not restrict the priority between "levels." Furthermore, the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in "first device," the number of "devices" can be one or more. Furthermore, the objects modified by different prefixes can be the same or different. For example, if the object being described is "device", then "first device" and "second device" can be the same device or different devices, and their types can be the same or different. Similarly, if the object being described is "information", then "first information" and "second information" can be the same information or different information, and their content can be the same or different.

[0058] In some embodiments, “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0059] In some embodiments, terms such as "time / frequency" and "time-frequency domain" refer to the time domain and / or frequency domain.

[0060] In some embodiments, terms such as “in response to…”, “in response to determining…”, “in the case of…”, “when…”, “when…”, “if…”, etc. can be used interchangeably. These descriptions all refer to the device making a corresponding action under certain objective circumstances. They do not necessarily limit the time, nor do they require the device to make a judgment action when implementing it, nor do they mean that there must be other limitations.

[0061] In some embodiments, the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.

[0062] In some embodiments, devices, etc., may be interpreted as physical or virtual, and their names are not limited to those described in the embodiments. Terms such as “device,” “equipment,” “circuit,” “network element,” “network function,” “network device,” “function,” “node,” “unit,” “section,” “system,” “network,” “chip,” “chip system,” “entity,” and “subject” are interchangeable.

[0063] In some embodiments, "network" can be interpreted as devices included in a network (e.g., access network devices, core network devices, etc.).

[0064] In some embodiments, the terms "access network device (AN device)," "radio access network device (RAN device)," "base station (BS)," "radio base station," "fixed station," "node," "access point," "transmission point (TP)," "reception point (RP)," "transmission / reception point (TRP)," "panel," "antenna panel," "antenna array," "cell," "macro cell," "small cell," "femto cell," "pico cell," "sector," "cell group," "serving cell," "carrier," "component carrier," and "bandwidth part (BWP)" can be used interchangeably.

[0065] In some embodiments, the terms "terminal", "terminal device", "user equipment (UE)", "user terminal", "mobile station (MS)", "mobile terminal (MT)", "subscriber station", "mobile unit", "subscriber unit", "wireless unit", "remote unit", "mobile device", "wireless device", "wireless communication device", "remote device", "mobile subscriber station", "access terminal", "mobile terminal", "wireless terminal", "remote terminal", "handset", "user agent", "mobile client", and "client" can be used interchangeably.

[0066] In some embodiments, access network devices, core network devices, or network devices can be replaced by terminals. For example, embodiments of this disclosure can also be applied to structures where communication between access network devices, core network devices, or network devices and terminals is replaced by communication between multiple terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the structure can also be configured such that the terminal has all or part of the functions of the access network device. Furthermore, terms such as "uplink" and "downlink" can be replaced with terms corresponding to communication between terminals (e.g., "sidelink"). For example, uplink channel, downlink channel, etc., can be replaced with sidelink channel, and uplink link, downlink, etc., can be replaced with sidelink link.

[0067] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, core network device, or network device may also be configured to have all or some of the functions of the terminal.

[0068] In some embodiments, the acquisition of data, information, etc., may comply with the laws and regulations of the country where the location is situated.

[0069] In some embodiments, data, information, etc., may be obtained with the user's consent.

[0070] In some embodiments, "acquire," "get," "obtain," "receive," "transmit," "bidirectional transmission," and "send and / or receive" can be used interchangeably and can be interpreted as receiving from other entities, acquiring from protocols, acquiring from higher layers, obtaining through self-processing, or autonomous implementation. Protocols include, for example, at least one of the 3GPP protocol, Wi-Fi protocol, and audio and / or video protocols.

[0071] Furthermore, each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.

[0072] This disclosure proposes a communication method, communication device, communication system, storage medium, and program product that can enable some cells to send complete synchronization signals and system broadcast messages, while others only send lightweight synchronization signals. This saves resource overhead while ensuring that the terminal can synchronize and access normally. It can also indicate to the terminal device whether to send complete synchronization signals and system broadcast messages or only lightweight synchronization signals, facilitating corresponding processing by the terminal.

[0073] The method proposed in this disclosure is applicable to various communication systems, including but not limited to 4G, 5G, 5G-advance and subsequent communication technologies (such as 6G).

[0074] Figure 1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure. As shown in Figure 1, the communication system 100 may include a terminal device 101 and a network device 102.

[0075] In some embodiments, the method disclosed herein can be applied to a communication system. Optionally, the terminal device can determine the measurement quantity and the corresponding reference point to measure the sensing reference signal. The terminal can receive the sensing signal sent by the network device, measure the sensing reference signal, and then send the measurement result to the network device.

[0076] In some embodiments, the terminal includes, but is not limited to, at least one of the following: mobile phone, wearable device, Internet of Things device, car with communication function, smart car, tablet computer, computer with wireless transceiver function, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal device in industrial control, wireless terminal device in self-driving, wireless terminal device in remote medical surgery, wireless terminal device in smart grid, wireless terminal device in transportation safety, wireless terminal device in smart city, and wireless terminal device in smart home.

[0077] In some embodiments, the access network device is, for example, a node or device that connects a terminal to a wireless network. The access network device may include at least one of the following in a 5G communication system: evolved Node B (eNB), next-generation eNB (ng-eNB), next-generation Node B (gNB), node B (NB), home node B (HNB), home evolved node B (HeNB), radio backhaul device, radio network controller (RNC), base station controller (BSC), base transceiver station (BTS), base band unit (BBU), mobile switching center, base station in a 6G communication system, open RAN, cloud RAN, base station in other communication systems, and access node in a Wi-Fi system, but is not limited thereto.

[0078] In some embodiments, a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements. Network elements may be virtual or physical. The core network may include, for example, at least one of the following: Evolved Packet Core (EPC), 5G Core Network (5GCN), and Next Generation Core (NGC).

[0079] In some embodiments, the technical solutions of this disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN. The processes and information interactions between these internal interfaces can be implemented by software or programs.

[0080] In some embodiments, the access network device may be composed of a central unit (CU) and a distributed unit (DU). The CU may also be called a control unit. The CU-DU structure can separate the protocol layer of the access network device. Some of the protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.

[0081] It is understood that the communication system described in this disclosure is for the purpose of more clearly illustrating the technical solutions of this disclosure, and does not constitute a limitation on the technical solutions proposed in this disclosure. As those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions proposed in this disclosure are also applicable to similar technical problems.

[0082] The following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto. The main bodies shown in FIG1 are illustrative. The communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1. ​​The number and form of each main body are arbitrary. Each main body may be physical or virtual. The connection relationship between the main bodies is illustrative. The main bodies may not be connected or may be connected. The connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.

[0083] The embodiments disclosed herein can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), 6th generation mobile communication system (6G), 6G new radio (NR), Future Radio Access (FRA), New-Radio Access Technology (RAT), New Radio (NR), New Radio Access (NX), Future Generation Radio Access (FX), Global System for Mobile Communications (GSM), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi), and IEEE 802.16 (WiMAX, a registered trademark), IEEE 802.20, Ultra-Wideband (UWB), Bluetooth (a registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X) systems, systems utilizing other communication methods, and next-generation systems built upon them. Furthermore, multiple systems can be combined (e.g., a combination of LTE or LTE-A with 5G).

[0084] Integrated Sensing and Communication (ISAC) technology will become a key technology for future wireless systems to support many important application scenarios. For example, in future autonomous vehicle networks, autonomous vehicles will obtain a large amount of information from the network, including ultra-high resolution maps and near real-time information, to help vehicles navigate and avoid potential traffic congestion.

[0085] For ISAC, different measurements of the sensing reference signal are required. For example, the reference signal receiving power (RSRP) and reference signal time difference (RSTD) between the target and the receiving node can be used for target position estimation.

[0086] When the UE receives a sensing reference signal (RS), it can measure the sensing reference signal and report the measurement result to the sensing control node. In the field of communications, the measurement indicators for measuring the sensing reference signal are defined as follows:

[0087] For ISAC, measurements including power, timing, spatial, and Doppler shift measurements will be introduced (e.g., RSRP, RSTD, Azimuth Angles of Departure (AOD), Azimuth Angles of Arrival (AOA), Zenith Angles of Departure (ZOD), Zenith Angles of Arrival (ZOA), and Doppler, etc.). In particular, how to define the measurement reporting reference point is a problem that needs to be considered in this scheme.

[0088] Therefore, in order to solve the above-mentioned technical problems, this disclosure proposes a communication method that can define the measurement behavior and measurement report indicators of the UE for ISAC, especially the reference point.

[0089] The following is a schematic diagram of a communication method provided in this disclosure. Embodiments of this disclosure relate to a communication method that can be executed by a communication system, such as the communication system 100 shown in FIG1. ​​The communication system includes a terminal 101 and a network device 102. The communication method may include the following specific methods:

[0090] Figure 2 is one of the interactive schematic diagrams of the communication method provided in this embodiment of the present disclosure. As shown in Figure 2, the method includes the following steps:

[0091] Step 2101: The network device sends a sensing reference signal to the terminal.

[0092] In some embodiments, the network device can send Sensing Reference Signals (Sens-RS) to the terminal. The terminal can receive the Sensing Reference Signals and measure the reference signals to obtain the value of the measured quantity of the sensing signal. The value of the measured quantity can be used to implement ISAC, for example, it can be used for position estimation.

[0093] In some embodiments, the names of information, etc., are not limited to the names described in the embodiments. Terms such as "information", "message", "signal", "signaling", "report", "configuration", "indication", "instruction", "command", "channel", "parameter", "domain", "field", "symbol", "symbol", "codebook", "codeword", "codepoint", "bit", "data", "program", and "chip" can be used interchangeably.

[0094] In some embodiments, the network device may send a sensing reference signal to the terminal, but is not limited thereto. The network device may also send a sensing reference signal to other entities, which is not limited in this disclosure.

[0095] In some embodiments, the terminal may receive sensing reference signals sent by the network device, but is not limited thereto. The terminal may also receive sensing reference signals sent by other entities, which is not limited in this disclosure.

[0096] In some embodiments, network devices can send sensing signals to terminals via a downlink.

[0097] In some embodiments, the terms "uplink", "uplink", and "physical uplink" can be used interchangeably, as can the terms "downlink", "downlink", and "physical downlink", as well as the terms "sidelink", "sidelink", "sidelink communication", "sidelink communication", "direct connection", "direct link", "direct communication", and "direct link communication".

[0098] In some embodiments, the terms “downlink control information (DCI),” “downlink (DL) assignment,” “DL DCI,” “uplink (UL) grant,” and “UL DCI” can be used interchangeably.

[0099] In some embodiments, terms such as "physical downlink shared channel (PDSCH)" and "DL data" can be used interchangeably, as can terms such as "physical uplink shared channel (PUSCH)" and "UL data".

[0100] Step 2102: The terminal measures the sensing reference signal based on the measurement reference point.

[0101] In some embodiments, the measurement reference point is associated with the quantity to be measured.

[0102] In some embodiments, measuring the sensed reference signal based on a measurement reference point includes at least one of the following: using the internal connection port reference point of the antenna of the terminal device as the measurement reference point, measuring the power-related quantity of the sensed reference signal; using the external direct connection reference point of the antenna of the terminal device as the measurement reference point, measuring at least one of the time-related quantity, frequency-related quantity, and angle-related quantity of the sensed reference signal.

[0103] In some embodiments, the reference point of the internal connection port of the antenna is the receiving point of the terminal device after multiple transmit beams transmitted by multiple antenna elements of the combined network device.

[0104] In some embodiments, the reference point directly connected to the antenna is the receiving point of the terminal device before the multiple transmit beams transmitted by the multiple antenna elements of the merging network device; or, the reference point directly connected to the antenna is the antenna connection point of the terminal device.

[0105] The internal antenna reference point can be the receiving point of a terminal device after combining multiple transmit beams from multiple antenna elements of a network device. For example, the internal antenna reference point can be a reference point within the terminal device itself. For instance, when using multiple antenna elements for analog, digital, or hybrid receive beamforming purposes, the internal antenna reference point serves as a measurement point for performing baseband measurements on the combined signal. The internal antenna reference point can also be named "internal reference point," "internal antenna," "internal point," or "internal reference point," etc. Measurements can be performed on the internal antenna reference point after combining the sensing reference signals received by multiple antenna elements; for example, it can measure power-related quantities.

[0106] Optionally, the externally connected reference point can be a receiving point of the terminal device before multiple transmit beams transmitted by multiple antenna elements of the combined network device; or, the externally connected reference point can be the antenna connection point of the terminal device. The name of the externally connected reference point can also be "far-field reference point," "transmit interface boundary," "Far field reference point," "RX antenna of UE," etc., and this disclosure does not limit this. The externally connected reference point can measure the sensed reference signal received by each antenna element individually, for example, it can measure time-related quantities, frequency-related quantities, angle-related quantities, etc., of the sensed reference signal.

[0107] In some embodiments, power-related measurements include at least one of the following: Signal to Interference plus Noise Ratio (SINR); Reference Signal Received Power (RSRP); Reference Signal Received Quality (RSRQ); Received Signal Strength Indication (RSSI); time-related measurements include: Reference Signal Time Difference (RSTD); power-related measurements include: Doppler frequency shift; angle-related measurements include at least one of the following: Departure Azimuth (AOD); Arrival Azimuth (AOA); Departure Zenith (ZOD); Arrival Zenith (ZOA).

[0108] In some embodiments, the network device has M beam scanning directions, where M is a positive integer. The measurement of the sensing reference signal based on the measurement reference point and the measurement value of the quantity to be measured include: for the i-th beam scanning direction, based on the internal reference point of the antenna, measuring the power-related measurement of the sensing reference signal carried by each of the N transmitted beams transmitted by multiple antenna elements of the network device, and obtaining N measurement values ​​for the i-th beam scanning direction, i∈[1,M]; adding the N measurement values ​​to obtain the total measurement value for the i-th beam scanning direction; and taking the maximum value among the M total measurement values ​​for the M beam scanning directions as the measurement value of the power-related measurement.

[0109] In other words, when measuring power-related quantities, the reference point selected is the internal connection port reference point of the antenna. Therefore, the value of the power-related measurement is the combined measurement value obtained after combining each beam. Taking RSRP measurement as an example, the transmitter has N transmission directions and the receiver has M reception directions. The transmitter emits a total of M×N transmission beams, and the receiver receives N beams in each reception direction, obtaining N measurement values. These N measurement values ​​are added together to obtain a total measurement value for that reception direction. Finally, the M total measurement values ​​are sorted to obtain the largest measurement value and its corresponding transmission beam index and reception beam index. Therefore, using the internal antenna as the reference point allows for consideration of signal combining.

[0110] In some embodiments, when measuring power-related quantities of the sensing reference signal, the measurement reference point can be the internal connection port reference point of the antenna. In this case, the internal connection port reference point of the antenna can measure the combined sensing reference signal. At this time, the power measurement can capture the analog beamforming gain brought about by the combination of antenna elements. That is, for power measurements (e.g., Sen-RSRP, ISAC reference signal received power, sen-PRS-RSRP), the internal reference point can reflect the UE baseband processing performance because the value includes the received beamforming gain.

[0111] Optionally, when the power-related measurement is sen-PRS-RSRP, sen-PRS-RSRP is defined as the linear average power of the resource element carrying the sensing PRS configured for RSRP measurement within the considered measurement frequency bandwidth. Optionally, the unit of sen-PRS-RSRP is watts. For frequency range 1 (FR1), the reference point for sen-PRS-RSRP should be the antenna connector of the terminal. For frequency range 2 (FR2), the reference point for sen-PRS-RSRP should be the internal connection port reference point of the antenna, which can be used to measure the combined signal of the receiving branch of the antenna element at a given radio frequency (RF) frequency. Optionally, the above method for measuring the power-related measurement of the sensing signal can be applied to the RRC connected state (RRC_CONNECTED).

[0112] In some embodiments, a reference point directly connected to the external antenna of the terminal device is used as the measurement reference point. Measuring time-related quantities of the sensed reference signal includes: determining the time T for receiving the sensed reference signal based on the reference point directly connected to the external antenna. SubframeRxj And T Subfra meRxi ; where T SubframeRxj T is the start time at which the terminal device receives a subframe from sending point j. SubframeRxi The starting time at which the terminal device receives a subframe from transmission point i is defined as the time-closest subframe to transmission point j; the value of the time-related measurement of the sensing reference signal is determined to be T. SubframeRxj With T SubframeRxi difference.

[0113] In some embodiments, the terms “frame”, “radio frame”, “subframe”, “slot”, “sub-slot”, “mini-slot”, “symbol”, “symbol”, and “transmission time interval (TTI)” can be used interchangeably.

[0114] In some embodiments, when measuring time-related quantities of the sensing reference signal, the time-related quantities are independent of the terminal's own implementation but are related to the channel response. Therefore, when measuring time-related quantities, the terminal's implementation can be disregarded, i.e., the terminal's receiving antenna, the number of receiving panels, beamforming gain, etc., can be ignored. In this case, the measurement reference point can be a reference point directly connected to the outside of the antenna, i.e., the sensing reference signal received by each antenna element can be measured separately, which can avoid new errors introduced by signal combination and improve the accuracy of the measurement.

[0115] Optionally, the time-related measurement of the sensed reference signal can be, for example, the ISAC reference signal time difference (Sen RSTD), which can be defined as the downlink time difference between the transmitting point j and the reference transmitting point i, and is defined as T. SubframeRxj -T SubframeRxi T SubframeRxj T represents the start time at which the terminal receives a subframe from sending point j. SubframeRxi This indicates the start time at which the terminal receives a subframe from reference transmission point i, where the subframe from transmission point i is the subframe that is closest in time to the subframe from transmission point j.

[0116] Optionally, for frequency range 1 (FR1), the reference point for Sen RSTD can be the antenna connector of the terminal. For frequency range 2 (FR2), the reference point for Sen RSTD can be the antenna of the terminal. Optionally, the method described above for measuring the time correlation of the sensed signal can be applied to the RRC connected state (RRC_CONNECTED).

[0117] In some embodiments, a reference point directly connected to the external antenna of the terminal device is used as the measurement reference point. Measuring frequency-related quantities of the sensed reference signal includes: determining the Doppler frequency shift (DF) of the received sensed reference signal based on the reference point directly connected to the external antenna. UE-RX and DF UE-TX ; where DF UE-RX DF is the Doppler frequency shift of the sensed reference signal received by the terminal device from the transmitting point in subframe p of the downlink. UE-TX The Doppler shift of the sensing reference signal transmitted by the terminal device in subframe q of the uplink is defined as the subframe that is temporally closest to subframe p; the value of the frequency-dependent measurement of the sensing reference signal is determined to be DF. UE-RX With DF UE-TX difference.

[0118] In some embodiments, when measuring frequency-dependent quantities of the sensing reference signal, the frequency-dependent quantities are independent of the terminal's own implementation but are related to the channel response. Therefore, when measuring frequency-dependent quantities, the terminal's implementation can be disregarded, i.e., the terminal's receiving antenna, the number of receiving panels, beamforming gain, etc., can be disregarded. In this case, the measurement reference point can be a reference point directly connected to the outside of the antenna, i.e., the sensing reference signal received by each antenna element can be measured separately, which can avoid new errors introduced by signal combination and improve the accuracy of the measurement.

[0119] Optionally, the frequency-related measurement quantity can be, for example, the ISAC reference signal Doppler shift (Sen DopShift), then Sen DopShift can be defined as DF. UE-RX With DF UE-TX The difference, of which DF UE-RX DF is the Doppler frequency shift of the sensed reference signal received by the terminal device from the transmitting point in subframe p of the downlink. UE-TX The Doppler shift of the sensing reference signal transmitted by the terminal device in subframe q of the uplink.

[0120] Optionally, for frequency range 1 (FR1), the reference point for Sen Dopshift should be the antenna connector of the terminal. Optionally, the method described above for measuring the frequency correlation of the sensed signal can be applied to RRC connected state (RRC_CONNECTED).

[0121] In some embodiments, the method further includes: compensating for and calibrating the delay between the antenna and the baseband module of the terminal device during testing based on at least one of time-related measurements, frequency-related measurements, and angle-related measurements obtained from a reference point directly connected to the antenna externally. In other words, there is a delay between the reception of the sensing reference signal by the terminal device from the antenna and its transmission to the baseband module. When the measurement reference point is a reference point directly connected to the antenna externally, the terminal device itself can perform the test calibration.

[0122] Step 2103: The terminal sends the value of the measured quantity obtained from the measurement sensing reference signal to the network device.

[0123] In some embodiments, the method further includes: the terminal sending the value of the measured quantity obtained by the measurement sensing reference signal to the network device.

[0124] In other words, after measuring the sensing reference signal, the terminal can report the measured value to the network device so that the network device can determine the current communication quality and perform beam management, channel quality assessment, mobility management, network optimization, and so on.

[0125] In some embodiments, the steps and their optional implementations in other embodiments described before or after this embodiment, as well as other related parts in the specification, can be referred to, and will not be repeated here.

[0126] Figure 3 is a schematic diagram of one of the communication methods provided in this disclosure. As shown in Figure 3, the method includes the following steps:

[0127] Step 3101: The network device sends a sensing reference signal to the terminal.

[0128] In some embodiments, the steps and their optional implementations in other embodiments (such as the embodiment in Figure 2) described before or after this embodiment, as well as other related parts in the specification, can be referred to, which will not be repeated here.

[0129] Step 3102: The terminal measures the sensing reference signal based on the measurement reference point.

[0130] In some embodiments, the steps and their optional implementations in other embodiments (such as the embodiment in Figure 2) described before or after this embodiment, as well as other related parts in the specification, can be referred to, which will not be repeated here.

[0131] The following is an exemplary description of the above method.

[0132] The method illustrated in this disclosure relates to a method for defining ISAC measurement indicators, the full details of which are as follows.

[0133] The ISAC receiving node can receive Sensing Reference Signals (Sens-RS) for ISAC sensing purposes. The Sensing Reference Signal Received Power (Sen RSRP) can be defined as the linear average of the power of the resource elements carrying the configured Sen-RS in response to the channel.

[0134] When a UE receives Sens-RS, the reference point for the DL PRS-RSRP determined by the UE may differ depending on the structure of the UE's receiving antenna. For example, there are two options for defining the UE's measurement reference point:

[0135] 1) Internal reference point: The reference point is defined as the measurement point inside the UE. For example, when using multiple antenna elements in combination for analog, digital or hybrid receive beamforming purposes, the internal measurement point is the measurement point for baseband measurements performed on the combined signal.

[0136] 2) Far-field reference point (UE's receiving antenna): The reference point is defined as the boundary of the transmit interface, that is, the reference point is the reference point in the far field where the operating frequency band meets the transmit requirements.

[0137] Example 1: Measurement reference point for power measurement

[0138] In principle, a reference point is defined for power measurements (e.g., measuring the RSRP / RSRQ / SINR of the received sensed signal) because the combined signal from the antenna elements ensures that such power measurements capture the analog beamforming gain introduced by the antenna element combination. In other words, the UE reports based on the actual measured power value. For example, if UE1 has twice the number of antenna elements as UE2, for the same received signal, UE1 might report an RSRP measurement that is approximately 3 dB higher than the measurement obtained by UE2.

[0139] For power measurements (such as Sen-RSRP), the internal reference point can reflect the UE baseband processing performance because the value includes the received beamforming gain.

[0140] Option 1: The reference point used for sensing signal power measurement in ISAC can be an internal reference point of the UE.

[0141] At this point, the RAN1 specification should include the following content.

[0142] Example 2: Measurement reference point for timing / Doppler frequency shift measurement

[0143] In principle, the reference point for power measurements (e.g., measuring the RSRP / RSRQ / SINR of the received sensed signal) is defined as the combined signal from the antenna elements to ensure that such measurements can capture the analog beamforming gain from the combined signal across the antenna elements. In other words, the UE reports based on the actual measured power value. For example, if UE1 has twice the number of antenna elements as UE2, for the same received signal, the RSRP measurement reported by UE1 might be approximately 3 dB higher than the measurement obtained by UE2.

[0144] Conversely, for sensing purposes, arrival time at the antenna and Doppler shift estimation are more necessary measurements than measuring the energy or power of the combined signal. These metrics (e.g., timing and Doppler shift measurements) will depend not on the UE's own implementation, but on the channel response itself. As shown in Figure 4, ideally, UE1 should report the same timing measurements regardless of its antenna array, beamforming gain, or other implementation.

[0145] In the above embodiments, timing measurements and Doppler shift estimation should not rely on the UE implementation. On the other hand, if the reference point is the antenna connector, it is more feasible from a testability perspective. Testing after antenna assembly may introduce additional timing estimation errors, which can significantly affect the final measurement results.

[0146] Differences in timing / Doppler frequency shift between different receiving antennas can lead to significant errors in the final target perception.

[0147] Option 2: The reference point for timing / Doppler frequency shift measurement based on the ISAC sensing reference signal can be the antenna connector.

[0148] At this point, the RAN1 specification should include the following content.

[0149] In summary, the above examples disclosed herein can define the measurement indicators and reference points for measuring the sensing reference signal in a sensing scenario, enabling the terminal to measure the sensing reference signal.

[0150] In the embodiments disclosed herein, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations in other embodiments.

[0151] This disclosure also proposes an apparatus (also referred to as a communication device, etc.) for implementing any of the above methods. For example, an apparatus is proposed, which includes units or modules for implementing the steps performed by the terminal in any of the above methods.

[0152] It should be understood that the division of units or modules in the above device is only a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, the units or modules in the device can be implemented by a processor calling software: for example, the device includes a processor connected to a memory containing instructions. The processor calls the instructions stored in the memory to implement any of the above methods or to implement the functions of the units or modules in the above device. The processor can be, for example, a general-purpose processor, such as a Central Processing Unit (CPU) or a microprocessor, and the memory can be internal or external to the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits. The functionality of some or all of the units or modules can be achieved through the design of these hardware circuits, which can be understood as one or more processors. For example, in one implementation, the hardware circuit is an application-specific integrated circuit (ASIC). The functionality of some or all of the units or modules is achieved through the design of the logical relationships between the components within the circuit. In another implementation, the hardware circuit can be implemented using a programmable logic device (PLD). Taking a field-programmable gate array (FPGA) as an example, it can include a large number of logic gates. The connection relationships between the logic gates are configured through configuration files, thereby achieving the functionality of some or all of the units or modules. All units or modules of the above device can be implemented entirely through processor-called software, entirely through hardware circuits, or partially through processor-called software with the remaining parts implemented through hardware circuits.

[0153] In this embodiment, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a Central Processing Unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits. The logical relationships of the aforementioned hardware circuits are fixed or reconfigurable. For example, the processor is a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. Furthermore, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a Neural Network Processing Unit (NPU), a Tensor Processing Unit (TPU), or a Deep Learning Processing Unit (DPU).

[0154] Figure 5A is a schematic diagram of the structure of a terminal proposed in an embodiment of this disclosure. The terminal 5100 is used to execute any of the above methods. In some embodiments, as shown in Figure 5A, the terminal 5100 may include: a transceiver module 5101 and a processing module 5102.

[0155] In some embodiments, the transceiver module is used to receive a sensing reference signal; optionally, the transceiver module is used to perform at least one of the communication steps such as receiving / sending performed by the terminal 5100 in any of the above methods (e.g., step 2101, step 2103, step 3101, etc., but not limited thereto), which will not be elaborated here.

[0156] In some embodiments, the above processing module is used to receive a sensing reference signal; optionally, the above processing module is used to perform at least one of the communication steps (such as step 2102, step 3102, etc., but not limited thereto) performed by the terminal 5100 in any of the above methods, which will not be described in detail here.

[0157] In some embodiments, the processing module may be a single module or may include multiple sub-modules. Optionally, the multiple sub-modules may each perform all or part of the steps required by the processing module.

[0158] In some embodiments, the processing module can be interchanged with the processor, and the transceiver module can include a transmitting module and / or a receiving module. The transmitting module and the receiving module can be separate or integrated together, and the transceiver module can be interchanged with the transceiver.

[0159] Figure 5B is a schematic diagram of the structure of a network device according to an embodiment of this disclosure. The network device 5200 is used to perform any of the above methods. In some embodiments, as shown in Figure 5B, the terminal 5200 may include a transceiver module 5201.

[0160] In some embodiments, the transceiver module is used to transmit a sensing reference signal, which is used by the terminal device to measure based on a measurement reference point; optionally, the transceiver module is used to perform at least one of the communication steps such as receiving and / or sending performed by the network device 5200 in any of the above methods (e.g., steps 2101, 2103, 3101, etc., but not limited thereto), which will not be described in detail here.

[0161] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, which may be separate or integrated. Optionally, the transceiver module may be interchangeable with a transceiver.

[0162] Figure 6A is a schematic diagram of the structure of the communication device 6100 proposed in an embodiment of this disclosure. The communication device 6100 can be a network device (e.g., access network device, core network device, etc.), a terminal (e.g., user equipment, etc.), a chip, chip system, or processor that supports the network device in implementing any of the above methods, or a chip, chip system, or processor that supports the terminal in implementing any of the above methods. The communication device 6100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.

[0163] As shown in Figure 6A, the communication device 6100 is used to execute any of the above methods. In some embodiments, the communication device 6100 includes one or more processors 6101. The processor 6101 may be a general-purpose processor or a special-purpose processor, such as a baseband processor or a central processing unit. The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control communication devices (e.g., base stations, baseband chips, terminal devices, terminal device chips, DUs or CUs, etc.), execute programs, and process program data. Optionally, the communication device 6100 is used to execute any of the above methods. Optionally, one or more processors 6101 are used to invoke instructions to cause the communication device 6100 to execute any of the above methods.

[0164] In some embodiments, the communication device 6100 further includes one or more transceivers 6102. When the communication device 6100 includes one or more transceivers 6102, the transceiver 6102 performs at least one of the communication steps such as sending and / or receiving in the above method (e.g., steps 2101, 2103, 3101, but not limited thereto), and the processor 6101 performs at least one of other steps (e.g., step 2102, but not limited thereto). In optional embodiments, the transceiver may include a receiver and / or a transmitter, which may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, interface, etc., can be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., can be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., can be used interchangeably.

[0165] In some embodiments, the communication device 6100 further includes one or more memories 6103 for storing data and / or instructions. Optionally, one or more processors 6101 are used to invoke instructions stored in the memory 6103 to cause the communication device 6100 to perform any of the above methods. Optionally, all or part of the memory 6103 may also be located outside the communication device 6100. In an optional embodiment, the communication device 6100 may include one or more interface circuits 6104. Optionally, the interface circuit 6104 is connected to the memory 6102 and can be used to receive data and / or instructions from the memory 6102 or other devices, and can be used to send data and / or instructions to the memory 6102 or other devices. For example, the interface circuit 6104 can read data and / or instructions stored in the memory 6102 and send the data and / or instructions to the processor 6101.

[0166] The communication device 6100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 6100 described in this disclosure is not limited thereto, and the structure of the communication device 6100 may not be limited by FIG. 6A. The communication device may be a standalone device or a part of a larger device. For example, the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data, programs and / or instructions; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.

[0167] Figure 6B is a schematic diagram of the structure of chip 6200 according to an embodiment of this disclosure. For cases where the communication device 6100 can be a chip or a chip system, please refer to the schematic diagram of chip 6200 shown in Figure 6B, but it is not limited thereto.

[0168] Chip 6200 includes one or more processors 6201. Chip 6200 is used to perform any of the methods described above.

[0169] In some embodiments, chip 6200 further includes one or more interface circuits 6202. Optionally, terms such as interface circuit, interface, and transceiver pin can be used interchangeably. In some embodiments, chip 6200 further includes one or more memories 6203 for storing data and / or instructions. Optionally, all or part of the memories 6203 may be located outside of chip 6200. Optionally, interface circuit 6202 is connected to memory 6203, and interface circuit 6202 can be used to receive data and / or instructions from memory 6203 or other devices, and interface circuit 6202 can be used to send data and / or instructions to memory 6203 or other devices. For example, interface circuit 6202 can read data and / or instructions stored in memory 6203 and send the data and / or instructions to processor 6201.

[0170] In some embodiments, the interface circuit 6202 performs at least one of the communication steps such as sending and / or receiving in the above-described method (e.g., steps 2101, 2103, and 3101, but not limited thereto). The interface circuit 6202 performing the communication steps such as sending and / or receiving in the above-described method refers, for example, to the interface circuit 6202 performing data and / or instruction interaction between the processor 6201, the chip 6200, the memory 6203, or the transceiver device. In some embodiments, the processor 6201 performs at least one of other steps (e.g., step 2102, but not limited thereto).

[0171] The modules and / or devices described in the various embodiments, such as virtual devices, physical devices, and chips, can be combined or separated arbitrarily as needed. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.

[0172] This disclosure also proposes a storage medium storing instructions that, when executed on a communication device, cause the communication device to perform any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but not limited thereto; it may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but not limited thereto; it may also be a temporary storage medium.

[0173] This disclosure also proposes a program product, including a program and / or instructions, which, when executed by a communication device, cause the communication device to perform any of the above methods. Optionally, the program product is a computer program product. Optionally, the program product is stored on the storage medium.

[0174] This disclosure also proposes a computer program that, when run on a computer, causes the computer to perform any of the above methods.

Claims

1. A communication method, characterized in that, The method is executed by a terminal device, and the method includes: Receive sensing reference signals; The sensing reference signal is measured based on the measurement reference point.

2. The method according to claim 1, characterized in that, The measurement of the sensing reference signal based on the measurement reference point includes at least one of the following: Using the internal connection point of the antenna of the terminal device as the measurement reference point, the power-related measurement quantity of the sensing reference signal is measured. The reference point directly connected to the outside of the antenna of the terminal device is used as the measurement reference point, and at least one of the time-related measurement, frequency-related measurement, and angle-related measurement of the sensing reference signal is measured.

3. The method according to claim 2, characterized in that, The reference point of the internal connection port of the antenna is the receiving point of the terminal device after multiple transmit beams are sent by multiple antenna units of the combined network device.

4. The method according to claim 2 or 3, characterized in that, The external direct connection reference point of the antenna is the receiving point of the terminal device before the multiple transmit beams sent by the multiple antenna elements of the merged network device; or, the external direct connection reference point of the antenna is the antenna connection point of the terminal device.

5. The method according to any one of claims 2 to 4, characterized in that, The power-related measurements include at least one of the following: Signal-to-Interference-plus-Noise Ratio (SINR); Reference Signal Received Power (RSRP); Reference signal reception quality (RSRQ); Received Signal Strength Indicator (RSSI); The time-related measurements include: Reference Signal Time Difference (RSTD); The power-related measurements include: Doppler frequency shift; The angle-related measurements include at least one of the following: departure azimuth angle (AOD); arrival azimuth angle (AOA); departure zenith angle (ZOD); arrival zenith angle (ZOA).

6. The method according to any one of claims 2 to 4, characterized in that, Using a reference point directly connected to the outside of the antenna of the terminal device as the measurement reference point, the time-related measurements of the sensed reference signal are measured, including: The time T for receiving the sensing reference signal is determined based on the reference point directly connected to the outside of the antenna. SubframeRxj And T SubframeRxi ; where T SubframeRxj T is the start time at which the terminal device receives the subframe from the sending point j. SubframeRxi The starting time for the terminal device to receive a subframe from sending point i is the time closest to the subframe from sending point j. The value of the time-related measurement of the sensed reference signal is determined to be T. SubframeRxj With T SubframeRxi difference.

7. The method according to any one of claims 2 to 4, characterized in that, Using a reference point directly connected to the outside of the antenna of the terminal device as the measurement reference point, the frequency-related measurements of the sensed reference signal are measured, including: Based on the reference point directly connected to the outside of the antenna, the Doppler frequency shift DF of the received sensing reference signal is determined. UE-RX and DF UE-TX ; where DF UE-RX DF is the Doppler frequency shift of the sensed reference signal received by the terminal device from the transmitting point in subframe p of the downlink. UE-TX The Doppler shift of the sensing reference signal transmitted by the terminal device in subframe q of the uplink, wherein subframe q is the subframe that is closest to subframe p in time; The value of the frequency-related measurement of the sensed reference signal is determined to be DF. UE-RX With DF UE-TX difference.

8. The method according to any one of claims 2 to 7, characterized in that, The method further includes: Based on at least one of the time-related measurements, frequency-related measurements, and angle-related measurements obtained by directly connecting the antenna to a reference point outside the antenna, the delay between the antenna and the baseband module of the terminal device is compensated and calibrated during the test.

9. The method according to any one of claims 1 to 8, characterized in that, The method further includes: The value of the measured quantity obtained by measuring the sensing reference signal is sent to the network device.

10. A communication method, characterized in that, The method is performed by a network device, and the method includes: A sensing reference signal is sent, which is used by the terminal device to perform measurements based on a measurement reference point.

11. The method according to claim 10, characterized in that, The measurement reference point is related to the quantity to be measured.

12. The method according to claim 11, characterized in that, The quantity to be measured is a power-related quantity, and the measurement reference point is the reference point of the internal connection port of the antenna of the terminal device. The quantity to be measured is at least one of time-related, frequency-related, and angle-related quantities, and the measurement reference point is a reference point directly connected to the outside of the antenna of the terminal device.

13. The method according to claim 12, characterized in that, The reference point of the internal connection port of the antenna is the receiving point of the terminal device after multiple transmit beams are sent by multiple antenna units of the combined network device.

14. The method according to claim 12 or 13, characterized in that, The external direct connection reference point of the antenna is the receiving point of the terminal device before the multiple transmit beams sent by the multiple antenna elements of the merged network device; or, the external direct connection reference point of the antenna is the antenna connection point of the terminal device.

15. The method according to any one of claims 11 to 14, characterized in that, The power-related measurements include at least one of the following: Signal-to-Interference-plus-Noise Ratio (SINR); Reference Signal Received Power (RSRP); Reference signal reception quality (RSRQ); Received Signal Strength Indicator (RSSI); The time-related measurements include: Reference Signal Time Difference (RSTD); The power-related measurements include: Doppler frequency shift; The angle-related measurements include at least one of the following: departure azimuth angle (AOD); arrival azimuth angle (AOA); departure zenith angle (ZOD); arrival zenith angle (ZOA).

16. The method according to any one of claims 10 to 15, characterized in that, The method further includes: The terminal device receives the value of the measured quantity obtained by measuring the sensing reference signal.

17. A communication device, characterized in that, The communication device is used to perform the method according to any one of claims 1-9 or 10-16.

18. A storage medium storing instructions, characterized in that, When the instruction is executed on the communication device, it causes the communication device to perform the method as described in any one of claims 1-9 or 10-16.

19. A program product comprising at least one of a program and instructions, characterized in that, When at least one of the programs or instructions is executed by the communication device, it implements the steps of the method according to any one of claims 1-9 or 10-16.

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