Communication resource determination method and apparatus, communication device, and storage medium

Abstract

The present disclosure relates to the technical field of communications, and relates to a communication resource determination method and apparatus, a communication device, and a storage medium. The method comprises: determining a first resource unit in a time-frequency domain, the first resource unit being used for uplink or downlink transmission. By redefining a frame structure, the first resource unit used for uplink or downlink transmission in the time-frequency domain is determined, thereby improving the Doppler resolution when the channel Doppler frequency is relatively high due to a high moving speed.

Description

Communication resource determination method and device, communication device, and storage medium TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of communication, and particularly relates to a communication resource determination method and device, a communication device, and a storage medium. BACKGROUND

[0002] In a wireless communication system, time resources are divided into continuous radio frames. When a sensing reference signal (RS) is configured on multiple radio frames, according to an existing RS generation method, the sequence of the sensing reference signal on each radio frame is repeated, which is not conducive to interference averaging, thereby limiting the estimation performance of the Doppler frequency of a sensing target.

[0003] SUMMARY

[0004] Embodiments of the present disclosure provide a communication resource determination method and device, a communication device, and a storage medium, which can be used in the technical field of communication and are used for designing a frame structure of a time-frequency domain resource.

[0005] According to a first aspect of embodiments of the present disclosure, a communication resource determination method is provided, which is performed by a first device and includes: determining a first resource unit on a time-frequency domain, the first resource unit being used for uplink or downlink transmission.

[0006] According to a second aspect of embodiments of the present disclosure, a communication resource determination device is provided, which includes a processing unit configured to determine a first resource unit on a time-frequency domain, the first resource unit being used for uplink or downlink transmission.

[0007] According to a third aspect of embodiments of the present disclosure, a communication device is provided, which includes a transceiver, a memory, and a processor connected to the transceiver and the memory respectively, and configured to control wireless signal transmission and reception of the transceiver by executing computer executable instructions on the memory, and to implement the method described in any one of the first aspect of the present disclosure.

[0008] According to a fourth aspect of embodiments of the present disclosure, a computer storage medium is provided, which stores computer executable instructions; the computer executable instructions are executed by a processor to implement the method described in any one of the first aspect of the present disclosure.

[0009] The communication resource determination method provided by the present disclosure determines a first resource unit on a time-frequency domain for uplink or downlink transmission by redefining a frame structure, thereby improving Doppler resolution in the case of high channel Doppler frequency caused by high moving speed. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following describes the drawings required for the embodiments, and the following drawings are only some embodiments of the present disclosure, and do not specifically limit the protection scope of the present disclosure.

[0011] FIG. 1A is a schematic diagram of a frame structure;

[0012] FIG. 1B is a schematic diagram of a communication resource determination method according to an embodiment of the present disclosure;

[0013] FIG. 2 is a schematic diagram of a communication resource determination method according to an embodiment of the present disclosure;

[0014] FIG. 3A is a structure diagram of a superframe according to an embodiment of the present disclosure;

[0015] FIG. 3B is a schematic diagram of mapping an OTFS frame to a superframe according to an embodiment of the present disclosure;

[0016] FIG. 3C is a schematic diagram of adding L-CP and N-CP OFDM symbols in a TDM multiplexing manner in a superframe according to an embodiment of the present disclosure;

[0017] FIG. 3D is a schematic diagram of a time slot structure according to an embodiment of the present disclosure;

[0018] FIG. 4 is a schematic diagram of a communication resource determination apparatus according to an embodiment of the present disclosure;

[0019] FIG. 5 is a schematic diagram of a communication device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0020] The embodiments of the present disclosure provide a communication resource determination method and apparatus, a communication device, and a storage medium.

[0021] In a first aspect, the embodiments of the present disclosure provide a communication resource determination method, which is performed by a first device and includes: determining a first resource unit in a time-frequency domain, the first resource unit being used for uplink or downlink transmission.

[0022] In the above embodiments, the first resource unit used for uplink or downlink transmission is designed differently.

[0023] In combination with some embodiments of the first aspect, in some embodiments, the first resource unit includes at least one of the following: a first radio frame, a time length T superf > 10 ms, or T superf = p x 10 ms, p being a positive integer; a second radio frame, a time length T f= 10 ms, the first radio frame comprises a plurality of second radio frames; a subframe, the first radio frame comprises a plurality of subframes; or, the second radio frame comprises a plurality of subframes, the first radio frame comprises a plurality of second radio frames; a time slot, the first radio frame comprises a plurality of time slots; or, the second radio frame comprises a plurality of time slots, the first radio frame comprises a plurality of second radio frames; or, the subframe comprises a plurality of time slots, the second radio frame comprises a plurality of subframes, the first radio frame comprises a plurality of second radio frames; an OFDM symbol, the first radio frame comprises a plurality of OFDM symbols; or, the time slot comprises a plurality of OFDM symbols, the first radio frame comprises a plurality of time slots; or, the time slot comprises a plurality of OFDM symbols, the second radio frame comprises a plurality of time slots, the first radio frame comprises a plurality of second radio frames; or, the time slot comprises a plurality of OFDM symbols, the subframe comprises a plurality of time slots, the second radio frame comprises a plurality of subframes, the first radio frame comprises a plurality of second radio frames.

[0024] In some embodiments of the first aspect, the time length of the first radio frame is T superf , and the time length of the OTFS frame mapped to the time domain is T OTFS , where T superf ≥ T OTFS , and the first radio frame is used for OTFS transmission and / or OFDM transmission.

[0025] In some embodiments of the first aspect, the method further comprises: generating, on a first OFDM symbol of the first radio frame, an initialization value of a random sequence corresponding to a reference signal, the initialization value being related to an index of the first OFDM symbol in the first radio frame, the index being predefined or configured by high-layer signaling; and transmitting the reference signal.

[0026] In the above embodiments, the sequences of the uplink and downlink reference signals can be kept randomized, thereby maximizing the average effect of interference.

[0027] In some embodiments of the first aspect, the OFDM symbol in the first resource unit is added with a first cyclic prefix (CP) or a second CP, and the length of the first CP is greater than the length of the second CP.

[0028] In some embodiments of the first aspect, in the first resource unit, the OFDM symbol added with the first CP and the OFDM symbol added with the second CP are time-divisional.

[0029] In some embodiments of the first aspect, in the first resource unit, a length of an OFDM symbol with the first cyclic prefix is equal to a length of an OFDM symbol with the second cyclic prefix; or, the length of the OFDM symbol with the first cyclic prefix is shorter than the length of the OFDM symbol with the second cyclic prefix; or, the length of the OFDM symbol with the first cyclic prefix is longer than the length of the OFDM symbol with the second cyclic prefix.

[0030] In some embodiments of the first aspect, in a case that the subcarrier spacing SCS parameter is less than or equal to a reference value, a length of a slot in the first resource unit decreases with an increase of the SCS parameter, and / or a number of OFDM symbols in the slot in the first resource unit remains unchanged; and / or in a case that the subcarrier spacing SCS parameter is greater than the reference value, the length of the slot in the first resource unit remains unchanged, and / or the number of OFDM symbols in the slot in the first resource unit increases with the increase of the SCS parameter.

[0031] In some embodiments of the first aspect, in a case that the SCS parameter is greater than the reference value, the length of the slot in the first resource unit is equal to a length of a slot corresponding to the reference value.

[0032] In some embodiments of the first aspect, in the slot of the first resource unit, an OFDM symbol is added with a first cyclic prefix or a second cyclic prefix, a length of the first cyclic prefix is greater than a length of the second cyclic prefix, and the OFDM symbol with the first cyclic prefix and the OFDM symbol with the second cyclic prefix are time-division.

[0033] In some embodiments of the first aspect, the first device is a terminal, and determining the first resource unit comprises: determining L consecutive OFDM symbols in a slot of the first resource unit according to configuration signaling of a network device or a predefinition, where L is a positive integer; or, the first device is a network device, and the method further comprises: in uplink and downlink resource allocation, allocating L consecutive OFDM symbols in a slot of the first resource unit, or determining the first resource unit comprises: determining L consecutive OFDM symbols in a slot of the first resource unit according to a predefinition, where L is a positive integer.

[0034] In some embodiments of the first aspect, the L OFDM symbols are used to carry one physical downlink shared channel PDSCH or one physical uplink shared channel PUSCH; or, the L OFDM symbols in the slot are divided into multiple groups, and each group is used to carry one PDSCH or one PUSCH.

[0035] In some embodiments of the first aspect, in some embodiments, the first device is a terminal, and determining the first resource unit comprises: determining, according to configuration signaling of the network device or a predefinition, a plurality of clusters of OFDM symbols within a time slot of the first resource unit, each cluster comprising Ls consecutive OFDM symbols, where Ls is a positive integer; or, the first device is a network device, and the method further comprises: in uplink and downlink resource allocation, allocating a plurality of clusters of OFDM symbols within a time slot of the first resource unit, each cluster comprising Ls consecutive OFDM symbols, or, determining the first resource unit comprises: determining, according to a predefinition, a plurality of clusters of OFDM symbols within a time slot of the first resource unit, and determining that each cluster comprises Ls consecutive OFDM symbols, where Ls is a positive integer.

[0036] In some embodiments of the first aspect, in some embodiments, the Ls consecutive OFDM symbols in each cluster are used to carry one PDSCH or one PUSCH; or, the Ls consecutive OFDM symbols in each cluster are divided into a plurality of groups, and each group is used to carry one PDSCH or one PUSCH.

[0037] In a second aspect, the embodiments of the present disclosure provide a communication resource determination apparatus, comprising a processing unit configured to determine a first resource unit in a time-frequency domain, the first resource unit being used for uplink or downlink transmission.

[0038] In a third aspect, the embodiments of the present disclosure provide a communication device, comprising: a transceiver; a memory; and a processor connected with the transceiver and the memory respectively, and configured to control wireless signal transceiving of the transceiver by executing computer executable instructions on the memory, and to implement the method described in any of the embodiments of the first aspect of the present disclosure.

[0039] In a fourth aspect, the embodiments of the present disclosure provide a computer storage medium, which stores computer executable instructions; and the computer executable instructions, when executed by a processor, can implement the method described in any of the embodiments of the first aspect of the present disclosure.

[0040] It can be understood that the above first device, communication device and storage medium are all used to execute the method proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved thereby can refer to the beneficial effects in the corresponding method, which will not be described herein again.

[0041] The embodiments of the present disclosure propose a communication resource determination method and apparatus, a communication device and a storage medium. In some embodiments, the terms of communication resource determination method and information processing method can be replaced with each other, and the terms of network device and information processing apparatus, communication apparatus, etc. can be replaced with each other.

[0042] The embodiments of the present disclosure are not exhaustive, but only illustrate some embodiments, and are not specific limitations on the protection scope of the present disclosure. In the case of no contradiction, each step in an embodiment can be implemented as an independent embodiment, and the steps can be combined arbitrarily, for example, the scheme after removing part of the steps in an embodiment can also be implemented as an independent embodiment, and the order of the steps in an embodiment can be exchanged arbitrarily, in addition, the optional implementation manners in an embodiment can be combined arbitrarily; in addition, the embodiments can be combined arbitrarily, for example, part or all steps of different embodiments can be combined arbitrarily, an embodiment can be combined with optional implementation manners of other embodiments arbitrarily.

[0043] In each embodiment of the present disclosure, the terms and / or descriptions between the embodiments are consistent if there is no special description and logical conflict, and can be referred to each other, and the technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0044] The terms used in the embodiments of the present disclosure are only for the purpose of describing the specific embodiments, and not as a limitation on the present disclosure.

[0045] In the embodiments of the present disclosure, unless otherwise specified, the elements expressed in singular form, such as "one", "a", "the", "above", "preceding", "this", etc., can represent "one and only one", or "one or more", "at least one", etc. For example, in the case of using articles such as "a", "an", "the" in English, the noun after the article can be understood as singular expression, or can be understood as plural expression.

[0046] In the embodiments of the present disclosure, "a plurality of" means two or more.

[0047] In some embodiments, the terms "at least one of", "at least one of", "at least one of", "one or more", "a plurality of", "multiple", etc. can be replaced with each other.

[0048] The description manner such as "at least one of A, B, C, …", "A and / or B and / or C, …" and the like in the embodiments of the present disclosure includes any one of A, B, C, … existing alone, and also includes any combination of any multiple of A, B, C, …, each of which can exist alone; for example, "at least one of A, B, C" includes a case of A alone, a case of B alone, a case of C alone, a case of combination of A and B, a case of combination of A and C, a case of combination of B and C, and a case of combination of A and B and C; for example, A and / or B includes a case of A alone, a case of B alone, and a case of combination of A and B.

[0049] In some embodiments, the description manner such as "A in a case, B in another case", "in response to a case A, in response to another case B" and the like can include the following technical solutions according to the case: A is executed regardless of B, that is, A in some embodiments; B is executed regardless of A, that is, B in some embodiments; A and B are selectively executed, that is, from A and B, execution is selected in some embodiments; A and B are both executed, that is, A and B in some embodiments. When there are more branches of A, B, C and the like, it is similar to the above.

[0050] The prefix words "first", "second" and the like in the embodiments of the present disclosure are only used to distinguish different description objects, and do not constitute limitation on the position, order, priority, quantity or content of the description objects. The description of the description objects should refer to the description in the context of the claims or embodiments, and should not constitute redundant limitation because of the use of the prefix words. For example, the description object is "field", and the ordinal words before "field" in "first field" and "second field" do not limit the position or order between "fields", and "first" and "second" do not limit whether the "fields" modified thereby are in the same message or not, nor limit the order of "first field" and "second field". For another example, the description object is "level", and the ordinal words before "level" in "first level" and "second level" do not limit the priority between "levels". For another example, the quantity of the description object is not limited by the ordinal words, and can be one or more. For example, "first device", wherein the quantity of "device" can be one or more. In addition, the objects modified by different prefix words can be the same or different, for example, the description object is "device", and "first device" and "second device" can be the same device or different devices, and the types thereof can be the same or different; for another example, the description object is "information", and "first information" and "second information" can be the same information or different information, and the contents thereof can be the same or different.

[0051] In some embodiments, "including A", "containing A", "for indicating A", "carrying A" can be interpreted as directly carrying A, or indirectly indicating A.

[0052] In some embodiments, the terms “time / frequency”, “time / frequency domain”, and the like refer to time domain and / or frequency domain.

[0053] In some embodiments, the terms “in response to”, “in response to determining”, “in case of”, “when”, “if”, “if”, “if”, and the like can be replaced with each other.

[0054] 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”, “above”, and the like can be replaced with each other, and 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”, “below”, and the like can be replaced with each other.

[0055] In some embodiments, the apparatus and the like can be interpreted as physical or virtual, and the name thereof is not limited to the name described in the embodiments. The terms “apparatus”, “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, “subject”, and the like can be replaced with each other.

[0056] In some embodiments, “network” can be interpreted as an apparatus (for example, an access network device, a core network device, and the like) included in the network.

[0057] 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,” “carrier,” “component carrier,” “bandwidth part (BWP),” and the like can be used interchangeably.

[0058] 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," "client," and so on can be replaced with each other.

[0059] In some embodiments, the access network device, the core network device, or the network device can be replaced with a terminal. For example, the embodiments of the present disclosure can also be applied to a structure in which communication between the access network device, the core network device, or the network device and the terminal is replaced with communication between a plurality of terminals (e.g., device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, the terminal can also be configured to have all or part of the functions of the access network device. In addition, the terms "uplink," "downlink," and the like can also be replaced with terms corresponding to the inter-terminal communication (e.g., "side"). For example, the uplink channel, the downlink channel, and the like can be replaced with the side channel, and the uplink, the downlink, and the like can be replaced with the sidelink.

[0060] In some embodiments, the terminal can be replaced with the access network device, the core network device, or the network device. In this case, the access network device, the core network device, or the network device can also be configured to have all or part of the functions of the terminal.

[0061] In some embodiments, data, information, and the like can be obtained in compliance with the laws and regulations of the country in which the location is situated.

[0062] In some embodiments, data, information, and the like can be obtained after obtaining the consent of the user.

[0063] In addition, each element, each row, or each column in the table of the embodiments of the present 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.

[0064] In a wireless communication system, time resources are divided into consecutive radio frames, each radio frame has a length of 10 ms, and is equally divided into 10 subframes. Depending on the subcarrier spacing (SCS), i.e., 2 μ · 15 kHz, μ = 0, 1, 2, 3, 4, 5, 6, each subframe is divided into 2 μ slots. With a normal CP length, each slot has 14 OFDM symbols. As shown in FIG. 1A, it is a frame structure diagram using SCS 30 kHz. If an extended CP length is used, each slot has 12 OFDM symbols.

[0065] In the above wireless communication system, a plurality of reference signals (RSs) are supported, such as channel state information reference signals (CSI-RSs), demodulation reference signals (DMRSs), positioning reference signals (PRSs), and the like. The sequences carried by these reference signals are all reinitialized according to 10 ms radio frames. For example, according to TS 38.211, the sequence of a PRS is initialized using the following formula:

[0066] wherein, is the slot index within a radio frame, is the number of OFDM symbols within a slot, is the PRS sequence ID configured by higher layer signaling, l is the OFDM symbol index within a slot.

[0067] Orthogonal time frequency space (OTFS) is a new waveform technology that can better handle the case where high mobile speed causes the channel Doppler frequency to be relatively high. OTFS can coexist well with OFDM. The information in the delay-Doppler (DD) domain of OTFS is mapped to the time-frequency domain through sparse Fourier transform (SFFT). The time-frequency domain resource generally includes a relatively large bandwidth and a relatively large number of OFDM symbols. In order to improve the Doppler resolution, the above-mentioned relatively large number of OFDM symbols can exceed the length of one radio frame. That is, the OTFS frame is generally longer than the 10 ms radio frame.

[0068] Generally, when a sensing target is sensed based on a wireless signal, information such as time delay, angle, Doppler frequency of a multipath component of the sensing target is obtained through measurement of a sensing signal reflected by the sensing target, and then the position and other parameters of the sensing target are determined. In order to determine the Doppler of the sensing target, a plurality of OFDM symbols are generally configured, which occupy a relatively long time period, thereby improving the Doppler resolution. The above-mentioned relatively large number of OFDM symbols can exceed the length of a radio frame. How to adjust the design of the radio frame structure is a problem to be solved.

[0069] Therefore, the present disclosure proposes a communication resource determination method and device, a communication device, and a storage medium, which redefine a frame structure, thereby improving the Doppler resolution in the case where a high moving speed leads to a relatively high channel Doppler frequency.

[0070] The method proposed by the present disclosure is applicable to various communication systems, including but not limited to 4G, 5G, 5G-advance, and subsequent communication technologies (such as 6G, etc.).

[0071] The first device proposed by the present disclosure can be a network device, or a terminal, or other communication device.

[0072] In some embodiments, the terminal can include at least one of a mobile phone, a wearable device, an Internet of Things device, a communication-enabled car, a smart car, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, but is not limited thereto.

[0073] The terminal device in the embodiments of the present application is an entity for receiving or transmitting signals on the user side, such as a mobile phone. The terminal device can also be referred to as a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), and the like. The terminal device can be a car, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in smart grid, a wireless terminal device in transportation safety, a wireless terminal device in smart city, a wireless terminal device in smart home, and the like. The embodiments of the present application do not limit the specific technology and specific device form of the terminal device.

[0074] The network device in the embodiments of the present application is an entity for transmitting or receiving signals on the network side. For example, the network device can be an evolved NodeB (eNB), a transmission reception point (TRP), a next generation NodeB (gNB) in an NR system, a base station in other future mobile communication systems, or an access node in a wireless fidelity (WiFi) system. The embodiments of the present application do not limit the specific technology and specific device form of the network device. The network device provided by the embodiments of the present application can be composed of a central unit (CU) and a distributed unit (DU), wherein the CU can also be referred to as a control unit. The CU-DU structure can split the protocol layers of the network device, such as a base station, and the functions of part of the protocol layers are controlled by the CU, and the functions of the remaining part or all of the protocol layers are distributed in the DU and controlled by the CU.

[0075] Embodiments of the present disclosure 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), 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 (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (Bluetooth (registered trademark)), Public Land Mobile Network (PLMN) network, Device-to-Device (D2D) system, Machine to Machine (M2M) system, Internet of Things (IoT) system, Vehicle-to-Everything (V2X), system using other user plane path establishment methods, next-generation systems expanded based thereon, and the like. In addition, a plurality of systems can be combined (for example, combination of LTE or LTE-A and 5G, and the like).

[0076] FIG. 1B is a flowchart of a communication resource determination method according to an embodiment of the present disclosure. As shown in FIG. 1B, the present embodiment relates to a communication resource determination method, which can be executed by a first device. The first device can be a network device, or a terminal, or another communication device. The method can include the following steps:

[0077] Step 1101, determining a first resource unit in a time-frequency domain.

[0078] In some embodiments, the first device determines a first resource unit in a time-frequency domain, the first resource unit being used for uplink or downlink transmission.

[0079] In some embodiments, the first resource unit comprises at least one of: a first radio frame, a time length T superf >10ms, or T superf =p×10ms, p being a positive integer; a second radio frame, a time length T f =10ms of the second radio frame, the first radio frame comprising a plurality of the second radio frames; a subframe, the first radio frame comprising a plurality of subframes; or, the second radio frame comprising a plurality of subframes, the first radio frame comprising a plurality of the second radio frames; a time slot, the first radio frame comprising a plurality of time slots; or, the second radio frame comprising a plurality of time slots, the first radio frame comprising a plurality of the second radio frames; or, the subframe comprising a plurality of time slots, the second radio frame comprising a plurality of subframes, the first radio frame comprising a plurality of the second radio frames; an OFDM symbol, the first radio frame comprising a plurality of OFDM symbols; or, the time slot comprising a plurality of OFDM symbols, the first radio frame comprising a plurality of time slots; or, the time slot comprising a plurality of OFDM symbols, the second radio frame comprising a plurality of time slots, the first radio frame comprising a plurality of the second radio frames; or, the time slot comprising a plurality of OFDM symbols, the subframe comprising a plurality of time slots, the second radio frame comprising a plurality of subframes, the first radio frame comprising a plurality of the second radio frames.

[0080] In some embodiments, the name of the first radio frame is not limited, which can be "superframe".

[0081] In some embodiments, the first resource unit comprises one or more first radio frames, each of which can comprise a plurality of time slots, each of which can comprise a plurality of OFDM symbols. Optionally, the first radio frame can comprise a plurality of second radio frames. Optionally, the first radio frame can comprise a plurality of subframes.

[0082] For example, the time length T superf of one first radio frame is greater than the length of one second radio frame, i.e. T superf >T f The length of one second radio frame is T f , T f =10ms. Each subframe is 1ms.

[0083] In some embodiments, the first resource unit comprises a plurality of first radio frames, the first radio frame comprising a plurality of second radio frames, the time length T f of the second radio frame being 10ms. The second radio frame comprises a plurality of subframes. Each subframe is 1ms.

[0084] For example, T superf may be equal to an integer number of lengths of the second radio frame, i.e., T superf = pT f , p is an integer greater than 1. Wherein, the length of one second radio frame is T f , T f = 10 ms. P can be predefined or configured by higher layer signaling.

[0085] For example, p = 2 k , k is an integer greater than 1, k can be predefined or configured by higher layer signaling, in particular, k can be equal to 10, so that T superf is equal to the time length of one system frame number (SFN) period, i.e., one SFN period constitutes one super frame.

[0086] In some embodiments, the first resource unit includes a plurality of first radio frames, and each first radio frame includes a plurality of slots.

[0087] In some embodiments, the first resource unit includes a plurality of first radio frames, and each first radio frame includes a plurality of second radio frames, and each second radio frame includes a plurality of slots.

[0088] In some embodiments, the first resource unit includes a plurality of first radio frames, and each first radio frame includes a plurality of second radio frames, and each second radio frame includes a plurality of subframes, and each subframe includes a plurality of slots.

[0089] For example, one second radio frame can be directly divided into a plurality of slots, one super frame can include a plurality of second radio frames, or one super frame can be directly divided into a plurality of subframes and / or slots.

[0090] In some embodiments, the first resource unit includes a plurality of first radio frames, and each first radio frame includes a plurality of OFDM symbols.

[0091] In some embodiments, the first resource unit includes a plurality of first radio frames, and each first radio frame includes a plurality of slots, and each slot includes a plurality of OFDM symbols.

[0092] In some embodiments, the first resource unit includes a plurality of first radio frames, and each first radio frame includes a plurality of second radio frames, and each second radio frame includes a plurality of slots.

[0093] For example, the structure diagram of the first radio frame can be as shown in FIG. 3A, one super frame is divided into N second radio frames, for example, N can be equal to 1024, each second radio frame can be divided into X subframes, and each subframe can be further divided into 2 μ slots, μ is a parameter related to SCS. For example, X = 10.

[0094] In some embodiments, the first resource unit comprises a first radio frame, the first radio frame comprises a plurality of second radio frames, the second radio frame comprises a plurality of subframes, the subframe comprises a plurality of slots, and the slot comprises a plurality of OFDM symbols.

[0095] For example, each slot can comprise a fixed number of OFDM symbols, for example, the number of OFDM symbols can be equal to 14, or the number of OFDM symbols contained in different slots can be different, and the lengths of different slots can be equal or approximately equal, for example, the length of the slot can be equal to the length of the slot at the same timing position in the 5G system.

[0096] In some embodiments, the time length of the first radio frame is T superf , and the time length of the OTFS frame mapped to the time domain is T OTFS , where T superf ≥ T OTFS , and the first radio frame is used for OTFS transmission and / or OFDM transmission.

[0097] In some embodiments, if T superf < T OTFS , the reference signal can be mapped on a plurality of first radio frames, and correspondingly, the plurality of first radio frames are used for OTFS transmission and / or OFDM transmission.

[0098] For example, one OTFS frame can be mapped to part or all of the bandwidth of a plurality of OFDM symbols, and the length of the superframe can be determined according to the length of the OTFS frame, for example, T superf ≥ T OTFS .

[0099] For example, a schematic diagram of mapping an OTFS frame to a superframe is shown in FIG. 3B, one OTFS frame is mapped to part of the time-frequency resources of a superframe, and another part of the time-frequency resources of the superframe can still be used for OFDM transmission.

[0100] In some embodiments, the OFDM symbols in the first resource unit are added with a first cyclic prefix (CP) or a second CP, and the length of the first CP is greater than the length of the second CP.

[0101] In some embodiments, the radio frame to which the first CP or the second CP is added can be the first radio frame or the second radio frame.

[0102] In some embodiments, in the first resource unit, the length of the OFDM symbol to which the first CP is added is equal to the length of the OFDM symbol to which the second CP is added, or the length of the OFDM symbol to which the first CP is added is shorter than the length of the OFDM symbol to which the second CP is added, or the length of the OFDM symbol to which the first CP is added is longer than the length of the OFDM symbol to which the second CP is added.

[0103] In some embodiments, the OFDM symbol with the first CP is used for target sensing, and the OFDM symbol with the second CP is used for communication.

[0104] In some embodiments, the OFDM symbol with the first CP added can also be used for communication.

[0105] For example, in sensing operations, to sense targets at a relatively far distance and considering the impact of distance and timing relationships between the various sensing transmitters and receivers performing the sensing operation, a relatively long CP (Content Transfer) needs to be added to the OFDM symbol, denoted as L-CP. In contrast, communication within a cell only needs to consider the uplink and downlink transmission requirements within the cell, so the CP can be relatively short, denoted as normal CP (N-CP). The FFT point count of the OFDM symbol with added L-CP can be the same as or different from the FFT point count of other OFDM symbols with added N-CP. OFDM symbols with added L-CP can also be used for communication.

[0106] In some embodiments, in the first resource unit, the OFDM symbol for adding the first CP and the OFDM symbol for adding the second CP are time-division multiplexed. In other words, the OFDM symbol for adding the first CP and the OFDM symbol for adding the second CP do not overlap.

[0107] In some embodiments, each time slot may include a fixed number of OFDM symbols. The CP of different OFDM symbols may be different, and the length of the time slot is variable.

[0108] For example, OFDM symbols with added L-CP and OFDM symbols with added N-CP can be time-division multiplexed, and each time slot can include a fixed number of OFDM symbols, for example, the number of OFDM symbols can be equal to 14.

[0109] In some embodiments, the number of OFDM symbols included in each time slot may be different, and the time lengths of different time slots may be equal or approximately equal. For example, the time length of a time slot may be equal to the time length of a time slot at the same timing position.

[0110] For example, an OFDM symbol with added L-CP and a TDM pattern with added N-CP can be defined in a length of In terms of time period, The time period can be a single time slot, multiple consecutive time slots, a single subframe, multiple consecutive subframes, a single second radio frame, or multiple consecutive second radio frames. OFDM symbols with added L-CP and TDM patterns with added N-CP can be defined directly on the superframe.

[0111] For example, the wireless frame to which the first CP or the second CP is added can be a first wireless frame, and the first wireless frame is a superframe. An example diagram of adding L-CP and N-CP OFDM symbols in a TDM multiplex within the superframe is shown in FIG. 3C. In (A), the effective OFDM symbol length of the two types of CPs is equal. In (B), the effective OFDM symbol length of the L-CP is shorter than the effective OFDM symbol length of the N-CP. In particular, the OFDM symbol length including the CP can be equal for the two types of CPs. In (C), the effective OFDM symbol length of the L-CP is longer than the effective OFDM symbol length of the N-CP.

[0112] In the above embodiments, the symbols of the first CP and the second CP are time-divisional, which can make the above OFDM symbols not cross a slot boundary; or, there can be OFDM symbols crossing a slot boundary, but the OFDM symbols do not cross a subframe boundary; or, there can be OFDM symbols crossing a subframe boundary, but the OFDM symbols do not cross a second wireless frame boundary; or, there can be OFDM symbols crossing a wireless frame boundary, but the OFDM symbols do not cross a superframe boundary.

[0113] In some embodiments, in a case where the subcarrier spacing SCS parameter is less than or equal to a reference value, the time slot length in the first resource unit decreases as the SCS parameter increases, and / or the OFDM symbol number of a time slot in the first resource unit remains unchanged.

[0114] For example, when the SCS parameter μ≤μ ref , the length of a time slot decreases as μ increases. For example, the time slot length decreases proportionally as μ increases, i.e., s0 / 2 μ , where T s0 is the time slot length when μ=0.

[0115] For example, when the SCS parameter μ≤μ ref , the OFDM symbol number of a time slot remains unchanged, denoted as

[0116] In some embodiments, in a case where the subcarrier spacing SCS parameter is greater than the reference value, the time slot length in the first resource unit remains unchanged, and / or the OFDM symbol number of a time slot in the first resource unit increases as the SCS parameter increases.

[0117] For example, when the SCS parameter μ>μ ref , so that the OFDM symbol number included in each time slot increases proportionally as μ, i.e.,

[0118] In some embodiments, in the case that the SCS parameter is greater than the reference value, the length of the time slot in the first resource unit is equal to the length of the time slot corresponding to the reference value.

[0119] For example, when the SCS parameter μ>μ ref , so that the length of each time slot is equal or approximately equal to the length of the time slot corresponding to the SCS μ ref .

[0120] In some embodiments, the OFDM symbols in the time slot of the first resource unit are added with a first cyclic prefix (CP) or a second CP, the length of the first CP is greater than the length of the second CP, and the OFDM symbols added with the first CP and the OFDM symbols added with the second CP in the time slot are time-divisional.

[0121] For example, the OFDM symbols can be added with CPs of different lengths, such as L-CP and N-CP, or the lengths of the effective OFDM symbols can be different, and the number of OFDM symbols included in different time slots can not be equal.

[0122] For example, the time slot structure can be as shown in FIG. 3D, μ ref = 3, i.e., the SCS is 120 kHz. For the SCS μ = 0, 1, 2, 3, the length of the time slot decreases proportionally with μ. For the SCS μ > 3, the length of the time slot remains the same as that of μ = 3, and accordingly, the number of OFDM symbols contained in each time slot increases to 14·2 μ-3 .

[0123] In some embodiments, the length of the time slot, the number of OFDM symbols, and the OFDM symbols added with the first CP or the second CP described above can be the corresponding time slot, OFDM symbol in the first radio frame, or the corresponding time slot, OFDM symbol in the second radio frame.

[0124] For example, μ ref = 3, i.e., the SCS is 120 kHz. For the SCS μ = 0, 1, 2, 3, the length of the time slot decreases proportionally with μ. For the SCS μ > 3, the length of the time slot remains the same as that of μ = 3, and accordingly, the number of OFDM symbols contained in each time slot increases to 14·2 μ-3 .

[0125] In some embodiments, for the case that the SCS parameter is greater than the reference value, the OFDM symbols added with the L-CP and the N-CP can be added in the time slot in a TDM multiplexing manner.

[0126] In the above embodiments, when the SCS parameter μ>μ ref , the boundaries of the OFDM symbols in the time slot can not need to be aligned with the time slot boundaries in the existing system, increasing the flexibility of adding the OFDM symbols added with the L-CP and the N-CP.

[0127] In some embodiments, for the case that the SCS parameter is less than the reference value, the slot boundary can be aligned with the slot boundary in the existing system.

[0128] In the above embodiments, different slot lengths are set based on the SCS parameter, which can achieve more flexible resource allocation.

[0129] In some embodiments, when the first device is a terminal, determining the first resource unit comprises: determining L consecutive OFDM symbols in the slot of the first resource unit according to the configuration signaling of the network device or the predefinition, where L is a positive integer; or the first device is a network device, and the method further comprises: when allocating uplink and downlink resources, allocating L consecutive OFDM symbols in the slot of the first resource unit, or determining the first resource unit comprises: determining L consecutive OFDM symbols in the slot of the first resource unit according to the predefinition, where L is a positive integer.

[0130] In some embodiments, the L OFDM symbols are used to carry one physical downlink shared channel (PDSCH) or one physical uplink shared channel (PUSCH); or the L OFDM symbols in the slot are divided into multiple groups, and each group is used to carry one PDSCH or one PUSCH.

[0131] For example, when L is greater than a preset value L TBmax , the L OFDM symbols in the slot are divided into multiple groups, and each group is used to carry one PDSCH or one PUSCH.

[0132] In some embodiments, when the first device is a terminal, the terminal determines, according to the signaling of the network device or the predefinition, that the L OFDM symbols are used to carry one physical downlink shared channel (PDSCH) or one physical uplink shared channel (PUSCH), or the terminal determines, according to the signaling of the network device or the predefinition, that the L OFDM symbols in the slot are divided into multiple groups, and determines that each group is used to carry one PDSCH or one PUSCH.

[0133] In some embodiments, when the first device is a network device, the network device can allocate L continuous OFDM symbols in a time slot of the first resource unit in uplink and downlink resource allocation. Optionally, the network device can determine, according to a protocol definition, that the L OFDM symbols are used to carry one physical downlink shared channel (PDSCH) or one physical uplink shared channel (PUSCH); or determine that the L OFDM symbols in the time slot are divided into multiple groups, and each group is used to carry one PDSCH or one PUSCH. Optionally, the network device can indicate to the terminal by signaling that “the L OFDM symbols are used to carry one PDSCH or one PUSCH; or the L OFDM symbols in the time slot are divided into multiple groups, and each group is used to carry one PDSCH or one PUSCH”.

[0134] For example, the network device sends uplink and downlink resource allocation to the first device, and the first device determines that the network device allocates L continuous OFDM symbols in a time slot of the first resource unit, and uses the L OFDM symbols to carry one PDSCH or one PUSCH.

[0135] For example, for SCS μ > μ ref , the number of OFDM symbols in a time slot increases. In uplink and downlink resource allocation, one row of time domain resource allocation (TDRA) can indicate L continuous OFDM symbols in a time slot, L can be less than or equal to 14, and L can be greater than 14. The resource indicated by the above TDRA row can be used to carry one PDSCH / PUSCH. Or, when L is greater than L TBmax , the resource indicated by the above TDRA row is divided into multiple PDSCH / PUSCH according to a certain method, so that the length of each PDSCH / PUSCH is less than or equal to L TBmax . For example, L TBmax = 14, and the method of dividing PDSCH / PUSCH can be approximately equal division.

[0136] In the above embodiments, the above determination of the first resource unit can realize one time slot scheduling once, and more flexible allocation of time resources on L symbols in each time slot.

[0137] In some embodiments, when the first device is a terminal, the determination of the first resource unit includes: determining, according to configuration signaling or a predefinition of the network device, multiple clusters of OFDM symbols in a time slot of the first resource unit, each cluster including Ls continuous OFDM symbols, where Ls is a positive integer; or the first device is a network device, and the method further includes: in uplink and downlink resource allocation, allocating multiple clusters of OFDM symbols in a time slot of the first resource unit, each cluster including Ls continuous OFDM symbols, where Ls is a positive integer.

[0138] In some embodiments, the Ls consecutive OFDM symbols in each cluster are used to carry one PDSCH or one PUSCH; or, the Ls consecutive OFDM symbols in each cluster are divided into multiple groups, and each group is used to carry one PDSCH or one PUSCH.

[0139] For example, when Ls is greater than a preset value L TBmax , the Ls consecutive OFDM symbols in each cluster are divided into multiple groups, and each group is used to carry one PDSCH or one PUSCH.

[0140] In some embodiments, when the first device is a terminal, the terminal determines, according to signaling or predefinition of a network device, that the multiple-cluster OFDM symbols in a time slot are used to carry one physical downlink shared channel (PDSCH) or one physical uplink shared channel (PUSCH), or the terminal determines, according to signaling or predefinition of the network device, that the Ls consecutive OFDM symbols in each cluster in the time slot are divided into multiple groups, and determines that each group is used to carry one PDSCH or one PUSCH.

[0141] In some embodiments, when the first device is a network device, the network device can allocate, in uplink and downlink resource allocation, the multiple-cluster OFDM symbols in a time slot of the first resource unit, and each cluster includes Ls consecutive OFDM symbols. Optionally, the network device can determine, according to a protocol predefinition, that the Ls consecutive OFDM symbols in each cluster are used to carry one PDSCH or one PUSCH; or, the network device can determine that the Ls consecutive OFDM symbols in each cluster in the time slot are divided into multiple groups, and each group is used to carry one PDSCH or one PUSCH. Optionally, the network device can indicate to a terminal by signaling that “the Ls consecutive OFDM symbols in each cluster are used to carry one PDSCH or one PUSCH; or, the Ls consecutive OFDM symbols in each cluster in the time slot are divided into multiple groups, and each group is used to carry one PDSCH or one PUSCH”.

[0142] For example, the network device sends configuration information of uplink and downlink resources to the terminal, and the terminal can determine that the network device allocates the multiple-cluster OFDM symbols in a time slot of the first resource unit, and each cluster includes Ls consecutive OFDM symbols. The Ls consecutive OFDM symbols are used to carry one PDSCH or one PUSCH.

[0143] For example, in uplink / downlink resource allocation, one TDRA row can indicate two or more clusters of OFDM symbols within a slot. Each cluster of OFDM symbols includes Ls s consecutive OFDM symbols, s = 0, 1, …. L s may be less than or equal to L TBmax . Alternatively, L s > L TBmax . When L s > L TBmax , Ls s consecutive OFDM symbols in each cluster can be divided into multiple PDSCH / PUSCHs, so that the length of each PDSCH / PUSCH is less than or equal to L TBmax .

[0144] For example, Ls

[0145] For example, one TDRA row can indicate time resources within multiple slots.

[0146] In the above embodiments, the above determination of the first resource unit can achieve one-time scheduling per slot, and more flexible allocation of time resources on more than Ls

[0147] Step 1102, generating an initialization value of a random sequence corresponding to a reference signal.

[0148] In some embodiments, the first device generates an initialization value of a random sequence corresponding to a reference signal on a first OFDM symbol of a first radio frame.

[0149] In some embodiments, the initialization value is related to the index of the first OFDM symbol within the first radio frame, which is pre-defined or configured by higher layer signaling.

[0150] For example, within one superframe, the sequence of uplink / downlink reference signals on each OFDM symbol can be randomized to maximize the average result of interference, and within one OTFS frame, the sequence of uplink / downlink reference signals can be randomized in both delay and Doppler dimensions in the DD domain to maximize the average result of interference.

[0151] For example, in generating a reference signal carried on one OFDM symbol of a superframe, the initialization value of the corresponding random sequence can be related to the index of this OFDM symbol within the superframe, and the index of the above OFDM symbol can be obtained according to the radio frame and / or slot in which the OFDM symbol is located.

[0152] In some embodiments, the uplink / downlink reference signal can be related to a virtual ID or a physical cell ID configured by higher layer signaling.

[0153] For example, the initialization value of the sequence generator of the reference signal is:

[0154] wherein, is the slot index within a superframe, is the number of OFDM symbols within a slot, and l is the OFDM symbol index within a slot, is the ID of the sequence of the reference signal. may be expressed as wherein, is the number of slots within a radio frame, and n f is the index of the radio frame within a superframe. may be predefined or configured by high layer signaling, for example,

[0155] For example, the initialization value of another sequence generator of the reference signal is:

[0156] wherein, A is equal to the number of bits of, for example, A=12.

[0157] In the above embodiments, the reference signal is randomly initialized, and the initialization value of the reference signal on each OFDM symbol can be determined, so that the maximum interference average result is achieved.

[0158] Step 1103, sending the reference signal.

[0159] In some embodiments, the first device is a terminal, and the first device sends the reference signal to the network device on the L continuous OFDM symbols within the slot of the first resource unit according to the allocated uplink and downlink resources.

[0160] In some embodiments, the first device is a terminal, and the first device receives the reference signal sent by the network device on the L continuous OFDM symbols within the slot of the first resource unit according to the allocated uplink and downlink resources.

[0161] In some embodiments, the first device is a terminal, and the first device sends the reference signal to the network device on the multiple cluster OFDM symbols within the slot of the first resource unit according to the allocated uplink and downlink resources.

[0162] In some embodiments, the first device is a terminal, and the first device receives the reference signal sent by the network device on the multiple cluster OFDM symbols within the slot of the first resource unit according to the allocated uplink and downlink resources.

[0163] In some embodiments, the first device is a network device, and the first device instructs the terminal to send a reference signal to the network device on L continuous OFDM symbols in a time slot of the first resource unit.

[0164] In some embodiments, the first device is a network device, and the first device instructs the terminal to receive a reference signal sent by the network device on L continuous OFDM symbols in a time slot of the first resource unit.

[0165] In some embodiments, the first device is a network device, and the first device instructs the terminal to send a reference signal to the network device on multiple cluster OFDM symbols in a time slot of the first resource unit.

[0166] In some embodiments, the first device is a network device, and the first device instructs the terminal to receive a reference signal sent by the network device on multiple cluster OFDM symbols in a time slot of the first resource unit.

[0167] FIG. 2 is a flow diagram of a communication resource determination method according to an embodiment of the present disclosure. The embodiment of the present disclosure relates to a communication resource determination method, and the above method comprises:

[0168] Step 2201: determining a first resource unit in a time-frequency domain.

[0169] The first resource unit is used for uplink or downlink transmission.

[0170] The optional implementation of step 2201 can refer to the optional implementation of step 1101 in FIG. 1B and other associated parts in the embodiments involved in FIG. 1B, which will not be described here.

[0171] In the embodiment of the present disclosure, step 2201 can be combined with step 1102 in FIG. 1B.

[0172] In summary, the communication resource determination method of the present disclosure can redefine a frame structure, so as to be more conducive to interference averaging when configuring a sensing reference signal on the frame.

[0173] The following is a specific scheme of the communication resource determination method provided by the embodiment of the present disclosure:

[0174] I. Structure of superframe

[0175] Let the length of a radio frame be T f , T f = 10 ms, and the uplink and downlink time-frequency resources are divided into multiple superframes. The time length of a superframe T superf is greater than the length of a radio frame, i.e., T superf > T f . T superf may be equal to the length of an integer number of radio frames, i.e., T superf = pTf , p is an integer greater than 1. p can be predefined or configured by higher layer signaling. For example, p = 2 k , k is an integer greater than 1. k can be predefined or configured by higher layer signaling. In particular, k can be equal to 10, so that T superf is equal to the time length of one system frame number (SFN) period, i.e., one SFN period constitutes one superframe.

[0176] In embodiments, the concept of subframe can not be introduced, so that one radio frame is directly divided into multiple slots. Or, the concept of radio frame can not be introduced, so that one superframe is directly divided into multiple subframes and / or slots. In embodiments, each slot can include a fixed number of OFDM symbols. For example, the number of OFDM symbols can be equal to 14, consistent with the 5G system. Or, different slots can contain different numbers of OFDM symbols. The time lengths of different slots can be equal or approximately equal. For example, the length of a slot can be equal to the length of a slot at the same timing position in the 5G system. In this way, the superframe can actually be regarded as a lengthened radio frame. In the present embodiments, the frame structure is not limited to be called a superframe or still called a radio frame.

[0177] As shown in FIG. 3A, a structure diagram of one superframe, one superframe is divided into N radio frames, each radio frame can be divided into X subframes, each subframe can be further divided into 2 μ slots, μ is a parameter related to SCS. For example, X = 10.

[0178] One OTFS frame can be mapped to part or all of the bandwidth of multiple OFDM symbols. The length T superf of the superframe can be determined according to the length of the OTFS frame. For example, T superf ≥ T OTFS . As shown in FIG. 3B, a schematic diagram of OTFS frame mapping to a superframe, one OTFS frame is mapped to part of the time-frequency resources of one superframe. Another part of the time-frequency resources of the superframe can still be dedicated to OFDM transmission.

[0179] II. Reference signal sequence

[0180] Within one superframe, the sequence of uplink and downlink reference signals on each OFDM symbol can be randomized to maximize the interference averaging effect. Within one OTFS frame, in the DD domain, the sequence of uplink and downlink reference signals can be randomized in both delay and Doppler dimensions to maximize the interference averaging effect.

[0181] In generating the reference signal carried on one OFDM symbol of a superframe, the initialization value of the corresponding random sequence can be related to the index of this OFDM symbol within the superframe. The index of the above-mentioned OFDM symbol can be obtained according to the radio frame and / or time slot in which the OFDM symbol is located. In addition, the uplink and downlink reference signals can further be related to other information, such as a virtual ID or a physical cell ID configured by high layer signaling.

[0182] For example, the initialization value of the sequence generator of the reference signal is

[0183] wherein, is the index of the time slot within a superframe, is the number of OFDM symbols within a time slot, and l is the index of the OFDM symbol within a time slot, is the ID of the sequence of the reference signal. may be expressed as wherein, is the number of time slots within a radio frame, and n f is the index of the radio frame within a superframe. may be predefined or configured by high layer signaling, for example,

[0184] Alternatively, another initialization value of the sequence generator of the reference signal is

[0185] wherein, A is equal to the number of bits of, for example, A = 12.

[0186] III. CP length

[0187] In the sensing operation, in order to sense a target at a relatively long distance and take into account the distance and timing relationship of each sensing transmitter and receiver performing the sensing operation, a relatively long CP, denoted as L-CP, needs to be added to the OFDM symbol. In contrast, communication within a cell only needs to consider the requirements of uplink and downlink transmission within the cell, so the CP can be relatively short, denoted as normal CP (N-CP). The FFT point number of the above-mentioned OFDM symbol with L-CP added can be the same as or different from that of other OFDM symbols with N-CP added. The OFDM symbol with L-CP added can also be used for communication.

[0188] The OFDM symbol with L-CP added and the OFDM symbol with N-CP added can be time-division multiplexed, and each time slot can include a fixed number of OFDM symbols. For example, consistent with the 5G system, the number of OFDM symbols can be equal to 14.

[0189] Specifically, the CP (Content Capabilities) of different OFDM symbols can be different, and the length of the time slot is variable. Alternatively, the number of OFDM symbols contained in different time slots can be different. The durations of different time slots can be equal or approximately equal. For example, the length of a time slot can be equal to the length of a time slot at the same timing position in a 5G system. The TDM patterns of OFDM symbols with added L-CP and OFDM symbols with added N-CP can be defined on a length of... In terms of time period, The time period can be a single time slot, multiple consecutive time slots, a single subframe, multiple consecutive subframes, a single radio frame, or multiple consecutive radio frames. The TDM patterns of OFDM symbols with added L-CP and OFDM symbols with added N-CP can be defined directly on the superframe. In the above mapping method, OFDM symbols can be configured such that they do not cross the time slot boundaries of the 5G system; or, OFDM symbols can cross the time slot boundaries of the 5G system, but cannot cross subframe boundaries; or, OFDM symbols can cross the subframe boundaries of the 5G system, but cannot cross radio frame boundaries; or, OFDM symbols can cross the radio frame boundaries of the 5G system, but cannot cross superframe boundaries. This embodiment can be used for frame structure design incorporating superframes, or for design based on radio frame structures without incorporating superframes.

[0190] Figure 3C shows a schematic diagram of adding L-CP and N-CP OFDM symbols within a superframe according to TDM multiplexing. In (A), the effective OFDM symbol lengths for both CPs are equal. In (B), the effective OFDM symbol length for L-CP is shorter than that for N-CP. Specifically, for the OFDM symbols of both CPs, the length of the OFDM symbol including the CP can be equal. In (C), the effective OFDM symbol length for L-CP is longer than that for N-CP.

[0191] IV. Number of OFDM symbols within a time slot

[0192] In 5G system, each slot includes 14 OFDM symbols for different SCS. That is, the length of slot is approximately inversely proportional to SCS. With larger SCS, the length of OFDM symbol and slot is reduced, which is beneficial for transmission of time sensitive service. However, it can also lead to more frequent transmission of PDCCH. For SCS μ = 5, 6, multi-slot PDCCH detection capability is introduced when designing frequency range 2-2 (FR2-2). PDCCH detection is defined on 4 or 8 consecutive slots, for example, a UE only supports detecting PDCCH on one slot out of every 8 slots. Also, FR2-2 introduces multi-PDSCH / PUSCH scheduling, i.e., one PDCCH can schedule different transport blocks (TBs) of PDSCH / PUSCH transmission in multiple slots.

[0193] When SCS is relatively large, e.g., μ > 3, the too short slot length is not suitable as the basic unit of resource allocation. The embodiment proposes to only introduce slot structure for SCS μ ≤ μ ref , and keep the length of one slot decreasing with increasing μ. For example, the length of slot is reduced proportionally with increasing μ, i.e., T s0 / 2 μ , where T s0 is the length of slot for μ = 0. For SCS μ > μ ref , the length of slot is kept equal or approximately equal to that of μ ref . In particular, for SCS μ ≤ μ ref , the number of OFDM symbols in one slot is kept constant, denoted as N For SCS μ > μ ref , the number of OFDM symbols in each slot is increased proportionally with μ, i.e., N

[0194] It is assumed that OFDM symbols can be added with different length of CP, e.g., L-CP and N-CP, or the length of effective OFDM symbol can be different, the number of OFDM symbols included in different slots can not be equal. The embodiment can be used to introduce the frame structure design of superframe, or be used for the design of radio frame structure without introducing superframe.

[0195] As shown in FIG. 3D is a schematic diagram of slot structure. It is assumed here that μ ref = 3, i.e., SCS 120 kHz. For SCS μ = 0, 1, 2, 3, the length of slot is reduced proportionally with changing μ. For SCS μ > 3, the length of slot is kept the same as that of μ = 3, and accordingly the number of OFDM symbols contained in each slot is increased to 14 · 2 μ-3 .

[0196] With this method, for SCS μ > μ refThe OFDM symbols with L-CP and N-CP added can be multiplexed in a time slot in TDM. In a time slot, the boundary of the OFDM symbols can not need to be aligned with the time slot boundary of SCSμin 5G. This increases the flexibility of allocating the OFDM symbols with L-CP and N-CP added. For SCSμ> μ ref , the time slot boundary can still be aligned with the 5G system.

[0197] With this method, for SCSμ> μ ref , the number of OFDM symbols in a time slot is increased. In uplink and downlink resource allocation, one row of time domain resource allocation (TDRA) can indicate L consecutive OFDM symbols in a time slot, L can be less than or equal to 14, and L can also be greater than 14. The resource indicated by the TDRA row can be used to carry one PDSCH / PUSCH. Or, when L is greater than L TBmax , the resource indicated by the TDRA row is divided into multiple PDSCH / PUSCHs in a certain way, so that the length of each PDSCH / PUSCH is less than or equal to L TBmax . For example, L TBmax = 14, and the method of dividing PDSCH / PUSCH can be approximately equal division.

[0198] Or, in uplink and downlink resource allocation, one TDRA row can indicate two or more clusters of OFDM symbols in a time slot. Each cluster of OFDM symbols includes L s consecutive OFDM symbols, s = 0, 1, …. L s may be less than or equal to L TBmax . Or, L s > L TBmax . When L s > L TBmax , it can be that each cluster of L s consecutive OFDM symbols is divided into multiple PDSCH / PUSCHs, so that the length of each PDSCH / PUSCH is less than or equal to L TBmax .

[0199] For the above two methods, one TDRA row can also be extended to indicate time resources in multiple time slots.

[0200] Embodiments of the present disclosure also propose an apparatus for implementing any of the above methods, for example, an apparatus including units or modules for implementing the steps performed by a first device in any of the above methods. For another example, another apparatus is also proposed, including units or modules for implementing the steps performed by a network device (such as an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0201] It should be understood that the division of each unit or module in the above apparatus is only a logical function division, and all or part of them can be integrated into a physical entity or physically separated in actual implementation. In addition, the units or modules in the apparatus can be implemented in the form of processor calling software: for example, the apparatus includes a processor connected with a memory, the memory stores instructions, and the processor calls the instructions stored in the memory to implement any of the above methods or realize the functions of the units or modules of the above apparatus, wherein the processor is, for example, a general processor such as a central processing unit (CPU) or a microprocessor, and the memory is a memory in the apparatus or a memory outside the apparatus. Alternatively, the units or modules in the apparatus can be implemented in the form of hardware circuit, and the functions of part or all of the units or modules can be realized by the design of hardware circuit. The above hardware circuit can be understood as one or more processors; for example, in one implementation, the above hardware circuit is an application-specific integrated circuit (ASIC), and the functions of part or all of the units or modules are realized by the design of the logical relationship of elements in the circuit; for another example, in another implementation, the above hardware circuit is realized by a programmable logic device (PLD), and a field programmable gate array (FPGA) is taken as an example, which can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, so as to realize the functions of part or all of the units or modules. All units or modules of the above apparatus can be all implemented in the form of processor calling software, or all implemented in the form of hardware circuit, or part implemented in the form of processor calling software and the remaining part implemented in the form of hardware circuit.

[0202] In the embodiments of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and running capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), a digital signal processor (DSP), and the like. In another implementation, the processor can implement certain functions through a logical relationship of a hardware circuit, and the logical relationship of the hardware circuit is fixed or reconfigurable. For example, the processor is a hardware circuit implemented by an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In the reconfigurable hardware circuit, the processor loads a configuration document to implement the configuration of the hardware circuit. It can be understood that the processor loads instructions to implement the functions of the above part or all units or modules. In addition, 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), a deep learning processing unit (DPU), and the like.

[0203] FIG. 4 is a structural schematic diagram of a communication resource determination apparatus according to an embodiment of the present disclosure. As shown in FIG. 4, the apparatus includes a processing unit 4101.

[0204] In some embodiments, the processing unit is configured to determine a first resource unit in a time-frequency domain, the first resource unit being used for uplink or downlink transmission.

[0205] In some embodiments, the first resource unit includes at least one of the following: a first radio frame, a time length T superf > 10 ms, or T superf = p x 10 ms, p being a positive integer; a second radio frame, a time length T f= 10 ms, the first radio frame comprises a plurality of second radio frames; a subframe, the first radio frame comprises a plurality of subframes; or, the second radio frame comprises a plurality of subframes, the first radio frame comprises a plurality of second radio frames; a time slot, the first radio frame comprises a plurality of time slots; or, the second radio frame comprises a plurality of time slots, the first radio frame comprises a plurality of second radio frames; or, the subframe comprises a plurality of time slots, the second radio frame comprises a plurality of subframes, the first radio frame comprises a plurality of second radio frames; an OFDM symbol, the first radio frame comprises a plurality of OFDM symbols; or, the time slot comprises a plurality of OFDM symbols, the first radio frame comprises a plurality of time slots; or, the time slot comprises a plurality of OFDM symbols, the second radio frame comprises a plurality of time slots, the first radio frame comprises a plurality of second radio frames; or, the time slot comprises a plurality of OFDM symbols, the subframe comprises a plurality of time slots, the second radio frame comprises a plurality of subframes, the first radio frame comprises a plurality of second radio frames.

[0206] In some embodiments, the time length of the first radio frame is T superf , the time length of the OTFS frame mapped to the time domain is T OTFS , wherein T superf ≥ T OTFS , and the first radio frame is used for OTFS transmission and / or OFDM transmission.

[0207] In some embodiments, the communication resource determination apparatus further comprises a serializing unit configured to generate an initialization value of a random sequence corresponding to the reference signal on the first OFDM symbol of the first radio frame, the initialization value being related to an index of the first OFDM symbol in the first radio frame, the index being predefined or configured by high layer signaling.

[0208] In some embodiments, the communication resource determination apparatus further comprises a transceiving unit configured to transmit the reference signal.

[0209] In some embodiments, the OFDM symbol in the first resource unit is added with a first cyclic prefix (CP) or a second CP, the length of the first CP being greater than the length of the second CP.

[0210] In some embodiments, in the first resource unit, the OFDM symbol added with the first CP and the OFDM symbol added with the second CP are time-divisional.

[0211] In some embodiments, in the first resource unit, the length of the OFDM symbol added with the first CP is equal to the length of the OFDM symbol added with the second CP; or, the length of the OFDM symbol added with the first CP is shorter than the length of the OFDM symbol added with the second CP; or, the length of the OFDM symbol added with the first CP is longer than the length of the OFDM symbol added with the second CP.

[0212] In some embodiments, in a case where the subcarrier spacing SCS parameter is less than or equal to a reference value, a length of a slot in the first resource unit decreases with an increase of the SCS parameter, and / or a number of OFDM symbols of the slot in the first resource unit remains unchanged; and / or in a case where the subcarrier spacing SCS parameter is greater than the reference value, the length of the slot in the first resource unit remains unchanged, and / or the number of OFDM symbols of the slot in the first resource unit increases with the increase of the SCS parameter.

[0213] In some embodiments, in a case where the SCS parameter is greater than the reference value, the length of the slot in the first resource unit is equal to a length of a slot corresponding to the reference value.

[0214] In some embodiments, an OFDM symbol in a slot of the first resource unit is added with a first cyclic prefix CP or a second CP, a length of the first CP is greater than a length of the second CP, and the OFDM symbol added with the first CP and the OFDM symbol added with the second CP in the slot are time-divisional.

[0215] In some embodiments, the first device is a terminal, and the determining the first resource unit comprises: determining L continuous OFDM symbols in a slot of the first resource unit according to configuration signaling of a network device or a predefinition, where L is a positive integer; or the first device is a network device, and the method further comprises: in uplink and downlink resource allocation, allocating L continuous OFDM symbols in a slot of the first resource unit, or the determining the first resource unit comprises: determining L continuous OFDM symbols in a slot of the first resource unit according to a predefinition, where L is a positive integer.

[0216] In some embodiments, the L OFDM symbols are used to carry one physical downlink shared channel PDSCH or one physical uplink shared channel PUSCH; or the L OFDM symbols in the slot are divided into multiple groups, and each group is used to carry one PDSCH or one PUSCH.

[0217] In some embodiments, the first device is a terminal, and the determining the first resource unit comprises: determining multiple clusters of OFDM symbols in a slot of the first resource unit according to configuration signaling of a network device or a predefinition, each cluster comprising Ls continuous OFDM symbols, where Ls is a positive integer; and / or the first device is a network device, and the method further comprises: in uplink and downlink resource allocation, allocating multiple clusters of OFDM symbols in a slot of the first resource unit, each cluster comprising Ls continuous OFDM symbols, or the determining the first resource unit comprises: determining multiple clusters of OFDM symbols in a slot of the first resource unit according to a predefinition, and determining that each cluster comprises Ls continuous OFDM symbols, where Ls is a positive integer.

[0218] In some embodiments, the Ls consecutive OFDM symbols in each cluster are used to carry one PDSCH or one PUSCH; or the Ls consecutive OFDM symbols in each cluster are divided into multiple groups, and each group is used to carry one PDSCH or one PUSCH.

[0219] FIG. 5 is a structural schematic diagram of a communication device 5100 provided by the embodiments of the present disclosure. The communication device 5100 can be a network device (for example, an access network device, a core network device, etc.), a terminal (for example, a user equipment, etc.), a chip, a chip system, or a processor supporting the network device to implement any of the above methods, or a chip, a chip system, or a processor supporting the terminal to implement any of the above methods. The communication device 5100 can be used to implement the methods described in the above method embodiments, and specific reference can be made to the descriptions in the above method embodiments.

[0220] As shown in FIG. 5, the communication device 5100 includes one or more processors 5101. The processor 5101 can be a general-purpose processor or a special-purpose processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (for example, a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process data of the programs. Optionally, the communication device 5100 is configured to perform any of the above methods. Optionally, the one or more processors 5101 are configured to invoke instructions to cause the communication device 5100 to perform any of the above methods.

[0221] In some embodiments, the communication device 5100 further includes one or more transceivers 5102. When the communication device 5100 includes one or more transceivers 5102, the transceiver 5102 performs at least one of the communication steps (for example, step 1103, but not limited to this) in the above method, such as transmitting and / or receiving, and the processor 5101 performs at least one of the other steps (for example, step 1101, step 1102, step 2201, but not limited to this). In an optional embodiment, the transceiver can include a receiver and / or a transmitter, which can be separate or integrated together. Optionally, the terms transceiver, transceiving unit, transceiver, transceiving circuit, interface circuit, interface, etc. can be replaced with each other, and the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc. can be replaced with each other, and the terms receiver, receiving unit, receiver, receiving circuit, etc. can be replaced with each other.

[0222] In some embodiments, the communication device 5100 further includes one or more memories 5103 for storing data. Alternatively, all or part of the memories 5103 can also be outside the communication device 5100. In optional embodiments, the communication device 5100 can include one or more interface circuits 5104. Optionally, the interface circuit 5104 is connected with the memory 5102, and the interface circuit 5104 can be used to receive data from the memory 5102 or other devices, and can be used to send data to the memory 5102 or other devices. For example, the interface circuit 5104 can read the data stored in the memory 5102 and send the data to the processor 5101.

[0223] In some embodiments, the processor 5101 can store a computer program 5105, which runs on the processor 5101 and can make the communication device 5000 perform the methods described in the above method embodiments. The computer program 5105 can be fixed in the processor 5101, in which case the processor 5101 can be implemented by hardware.

[0224] The communication device 5100 described in the above embodiments can be a network device or a terminal, but the scope of the communication device 5100 described in the present disclosure is not limited thereto, and the structure of the communication device 5100 can not be limited by Figure 5. The communication device can be a standalone device or can be part of a larger device. For example, the communication device can be: (1) a standalone integrated circuit (IC), or a chip, or a chip system or subsystem; (2) a set of one or more ICs, which can optionally include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, a smart terminal device, a cellular phone, a wireless device, a handset, a mobile unit, a vehicle-mounted device, a network device, a cloud device, an artificial intelligence device, etc.; (6) other devices, etc.

[0225] The present disclosure also proposes a storage medium, which stores instructions, and when the instructions run on the communication device 5100, the communication device 5100 performs 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 is not limited thereto, and can also be a storage medium readable by other devices. Optionally, the storage medium can be a non-transitory storage medium, but is not limited thereto, and can also be a transitory storage medium.

[0226] The present disclosure also proposes a program product, which is executed by the communication device 5100, and makes the communication device 5100 perform any of the above methods. Optionally, the program product is a computer program product.

[0227] The present disclosure also proposes a computer program which, when running on a computer, causes the computer to perform any of the above methods.

Claims

1. A method for determining communication resources, characterized in that, The method is performed by a first device, and the method includes: A first resource element is determined in the time-frequency domain, which is used for uplink or downlink transmission.

2. The method according to claim 1, characterized in that, The first resource unit includes at least one of the following: The first wireless frame, the duration of the first wireless frame is T. superf >10ms, or T superf = p × 10 ms, where p is a positive integer; The second wireless frame, the duration of the second wireless frame is T. f =10ms, the first wireless frame includes multiple second wireless frames; The first radio frame includes a plurality of said subframes; or the second radio frame includes a plurality of said subframes, and the first radio frame includes a plurality of said second radio frames. The time slots, the first radio frame includes multiple time slots; or, the second radio frame includes multiple time slots, the first radio frame includes multiple second radio frames; or, the subframe includes multiple time slots, the second radio frame includes multiple subframes, the first radio frame includes multiple second radio frames. OFDM symbols, the first radio frame includes a plurality of the OFDM symbols; or, the time slot includes a plurality of the OFDM symbols, the first radio frame includes a plurality of the time slots; or, the time slot includes a plurality of the OFDM symbols, the second radio frame includes a plurality of the time slots, the first radio frame includes a plurality of the second radio frames; or, the time slot includes a plurality of the OFDM symbols, the subframe includes a plurality of the time slots, the second radio frame includes a plurality of the subframes, and the first radio frame includes a plurality of the second radio frames.

3. The method according to claim 2, characterized in that, The duration of the first wireless frame is T superf The time length of an orthogonal time-frequency space-time OTFS frame mapped to the time domain is T. OTFS , among which, T superf ≥T OTFS The first wireless frame is used for OTFS transmission and / or OFDM transmission.

4. The method according to any one of claims 2 to 3, characterized in that, The method further includes: On the first OFDM symbol of the first radio frame, an initialization value for a random sequence corresponding to a reference signal is generated. The initialization value is related to the index of the first OFDM symbol in the first radio frame. The index is predefined or configured by higher-layer signaling. Send the reference signal.

5. The method according to any one of claims 1 to 4, characterized in that, The OFDM symbols in the first resource unit are given a first cyclic prefix CP or a second CP, and the length of the first CP is greater than the length of the second CP.

6. The method according to claim 5, characterized in that, In the first resource unit, adding the OFDM symbol of the first CP and adding the OFDM symbol of the second CP are time-separated.

7. The method according to claim 5 or 6, characterized in that, In the first resource unit, the length of the OFDM symbol with the first CP added is equal to the length of the OFDM symbol with the second CP added; or, The length of the OFDM symbol with the first CP added is shorter than the length of the OFDM symbol with the second CP added; or, The length of the OFDM symbol with the first CP added is longer than the length of the OFDM symbol with the second CP added.

8. The method according to any one of claims 1 to 7, characterized in that, When the subcarrier spacing (SCS) parameter is less than or equal to the reference value, the slot length in the first resource unit decreases as the SCS parameter increases, and / or the number of OFDM symbols in the slots of the first resource unit remains unchanged; and / or When the subcarrier spacing (SCS) parameter is greater than the reference value, the slot length in the first resource unit remains unchanged, and / or the number of OFDM symbols in the slots of the first resource unit increases with the increase of the SCS parameter.

9. The method according to claim 8, characterized in that, When the SCS parameter is greater than the reference value, the slot length in the first resource unit is equal to the slot length corresponding to the reference value.

10. The method according to claim 8 or 9, characterized in that, The OFDM symbols in the time slot of the first resource unit are added with a first cyclic prefix (CP) or a second CP. The length of the first CP is greater than the length of the second CP. The OFDM symbols with the first CP added and the OFDM symbols with the second CP added in the time slot are time-divided.

11. The method according to any one of claims 8 to 10, characterized in that, The first device is a terminal, and determining the first resource unit includes: determining L consecutive OFDM symbols within the time slot of the first resource unit based on received configuration signaling or a predefined definition, where L is a positive integer; or, The first device is a network device, and the method further includes: allocating L consecutive OFDM symbols in the time slot of the first resource unit during uplink and downlink resource allocation, or, determining the first resource unit includes: determining L consecutive OFDM symbols in the time slot of the first resource unit according to a predefined definition, where L is a positive integer.

12. The method according to claim 11, characterized in that, The L OFDM symbols are used to carry a Physical Downlink Shared Channel (PDSCH) or a Physical Uplink Shared Channel (PUSCH); Alternatively, the L OFDM symbols within the time slot are divided into multiple groups, each group being used to carry one PDSCH or one PUSCH.

13. The method according to any one of claims 8 to 10, characterized in that, The first device is a terminal, and determining the first resource unit includes: determining multiple clusters of OFDM symbols within the time slot of the first resource unit according to the configuration signaling or predefined information of the network device, wherein each cluster includes Ls consecutive OFDM symbols, where Ls is a positive integer; or, The first device is a network device, and the method further includes: allocating multiple clusters of OFDM symbols in the time slot of the first resource unit during uplink and downlink resource allocation, wherein each cluster includes Ls consecutive OFDM symbols; or, determining the first resource unit includes: determining multiple clusters of OFDM symbols in the time slot of the first resource unit according to a predefined definition, and determining that each cluster includes Ls consecutive OFDM symbols, wherein Ls is a positive integer.

14. The method according to claim 13, characterized in that, Ls consecutive OFDM symbols in each cluster are used to carry one PDSCH or one PUSCH; Alternatively, the Ls consecutive OFDM symbols in each cluster are divided into multiple groups, each group being used to carry either a PDSCH or a PUSCH.

15. A communication resource determination device, characterized in that, The device includes: The processing unit is used to determine a first resource unit in the time-frequency domain, the first resource unit being used for uplink or downlink transmission.

16. A communication device, wherein, include: transceiver; Memory; The processor is connected to the transceiver and the memory respectively, and is configured to control the wireless signal transmission and reception of the transceiver by executing computer-executable instructions on the memory, and is capable of implementing the method of any one of claims 1-14.

17. A computer storage medium, wherein, The computer storage medium stores computer-executable instructions; when executed by a processor, the computer-executable instructions can implement the method of any one of claims 1-14.

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