Communication method, communication device and communication system
Patent Information
- Application Number
- CN202480038263.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2026-01-16
AI Technical Summary
In wireless communication systems, existing technologies have difficulty in defining the subcarrier spacing (SCS) of a low power wake-up signal (LP WUS) in low power mode, resulting in low terminal wake-up efficiency and uneven power consumption.
The SCS of the LP WUS is determined collaboratively by the terminal and network equipment. The SCS of the LP WUS is indicated by information such as RRC signaling, DCI, MAC CE, MIB, or SIB. The SCS of the LP WUS is determined by combining the time domain position of the LPSS superposition sequence and the M value of the Manchester code.
The SCS of LP WUS is clearly defined under different SCS conditions, which improves the wake-up efficiency and power utilization of the terminal and prolongs the battery life.
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Figure CN121359532A_ABST
Abstract
Description
Communication method, communication device and communication system Technical Field
[0001] The present disclosure relates to the field of communication technology, and in particular to a communication method, communication equipment, and communication system. Background Art
[0002] A Low Power Wake-Up Signal (LPWUS) is a special signal used in wireless communication systems to wake up devices in low-power mode. The goal of this signal design is to maintain low-power operation while waking the device only when needed for data transmission, thereby significantly saving power and extending battery life.
[0003] Summary of the Invention
[0004] The present disclosure provides a communication method, a communication device, and a communication system. When LP WUSs support the same subcarrier spacing (SCS) or different SCSs, the SCS of the LP WUSs can be clarified.
[0005] A first aspect of the present disclosure provides a communication method, which is executed by a terminal. The method includes: determining first information; and determining an SCS of an LP WUS according to the first information.
[0006] A second aspect of the present disclosure provides a communication method, which is performed by a network device. The method includes: sending first information to a terminal, where the first information is used to indicate an SCS of an LP WUS.
[0007] A third aspect of the present disclosure provides a terminal, including: a processing module configured to determine first information; and determine an SCS of an LP WUS according to the first information.
[0008] A fourth aspect of the present disclosure provides a network device, including: a sending module configured to send first information to a terminal, where the first information is used to indicate an SCS of an LP WUS.
[0009] A fifth aspect embodiment of the present disclosure provides a communication device, comprising: one or more processors; wherein the processor is used to execute the method as described in the first aspect embodiment, or to execute the method as described in the second aspect embodiment.
[0010] A sixth aspect embodiment of the present disclosure provides a communication system, including: a terminal and a network device; the terminal executes the method as described in the first aspect embodiment, and the network device executes the method as described in the second aspect embodiment.
[0011] A seventh aspect embodiment of the present disclosure provides a communication method, including: a network device sends first information to a terminal; the terminal receives the first information and determines the subcarrier spacing SCS of a low power wake-up signal LP WUS based on the first information.
[0012] An eighth aspect embodiment of the present disclosure provides a computer storage medium, wherein the computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by a processor, the method described in the first aspect embodiment or the second aspect embodiment can be implemented.
[0013] A ninth aspect embodiment of the present disclosure provides a computer program product, wherein the computer program product stores a computer program; after the computer program is executed by a processor, it can implement the method described in the first aspect embodiment or the second aspect embodiment.
[0014] The embodiments of the present disclosure provide a communication method, a communication device, and a communication system. A terminal can determine first information based on an instruction from a network device or a predefined protocol, and determine the SCS of an LP WUS based on the first information. Furthermore, when the LP WUS supports the same SCS or different SCSs, the SCS of the LP WUS can be clarified, thereby facilitating the terminal to demodulate a received LP WUS signal.
[0015] Additional aspects and advantages of the present disclosure will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:
[0017] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;
[0018] FIG2 is a flow chart of a communication method according to an embodiment of the present disclosure;
[0019] FIG3 is a flow chart of a communication method according to an embodiment of the present disclosure;
[0020] FIG4 is a flow chart of a communication method according to an embodiment of the present disclosure;
[0021] FIG5 is a block diagram of a communication device according to an embodiment of the present disclosure;
[0022] FIG6 is a block diagram of a communication device according to an embodiment of the present disclosure;
[0023] FIG7 is a schematic structural diagram of a communication device according to an embodiment of the present disclosure;
[0024] FIG8 is a schematic structural diagram of a chip provided in an embodiment of the present disclosure. DETAILED DESCRIPTION
[0025] The embodiments of the present disclosure are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present disclosure and are not to be construed as limiting the present disclosure. It should be noted that the embodiments of the present disclosure and the features in the embodiments may be combined with each other unless there is a conflict.
[0026] To facilitate understanding, the terms involved in the embodiments of the present disclosure are first introduced.
[0027] 1. Low Power Wake Up Signal (LP WUS)
[0028] The LP WUS signal uses a separate receiver, called LP-WUR (or LR). The terminal needs to use the main radio (MR) to process downlink and / or uplink data normally. The LP WUS signal may be used in Radio Resource Control (RRC) connected state, inactive state, idle state, and other states. The LP WUS signal can instruct the terminal main radio to switch between any two sleep states, and can also instruct the terminal to wake up or not. If the terminal receives an LP WUS signal indicating wakeup, it will turn on the main radio to receive and process downlink and / or uplink signals. If the LP WUS signal is not received, or the LP WUS indicates not to wake up, the terminal will maintain the current sleep state of the main radio. There are 4 sleep states of MR: Ultra-deep sleep, Deep sleep, Light sleep, and Micro sleep.
[0029] 2. Low Power Wake Up Receiver (LP WUR / LR)
[0030] There are two working modes of LP WUR, one is always ON and the other is duty cycle. For the always ON mode, the LP WUR of the terminal is always in the on state, and the base station can send LP WUS to wake up the terminal at any time. For the duty cycle mode, the terminal only turns on LP WUR in the listening time window of LP WUS according to a certain mechanism, and the base station can only send LP WUS to wake up the terminal during this time period. In addition, depending on the type of supported signals, LP WUR can be divided into two categories: LP-WUR can support at least two types: a receiver that only supports envelope detection (Envelope Detection) of the on-off keying (OOK) symbols of LP WUS, hereinafter referred to as OOK LR; a receiver that supports detection of the time domain or frequency domain sequence carried by the OOK symbols of LP WUS, which can be called orthogonal frequency division multiplexing (OFDM) LR. Generally speaking, the link performance of OOK LR is relatively poor, while that of OFDM LR is better.
[0031] 3. Low Power Sync signal (LP SS)
[0032] When detecting LP WUS, the terminal needs to obtain time and frequency synchronization by detecting the synchronization signal, and then obtain the time and frequency position of the base station transmitting LP WUS. The synchronization signal can be a reused existing primary synchronization signal (PSS) and / or secondary synchronization signal (SSS), or LP SS. LP WUS / LP SS carries information through amplitude shift keying (ASK) modulation, and OOK modulation is a special case of ASK modulation. Taking OOK as an example, the OOK ON symbol and the OOK OFF symbol represent different bits, for example, OOK ON represents bit 1, and OOK OFF represents bit 0. The LP WUS information can also be encoded, with each coded bit mapped to an OOK symbol, such as Manchester coding. For 1 / 2 Manchester encoding, information bit 1 can be mapped to 2 coded bits; for 1 / 4 Manchester encoding, information bit 1 can be mapped to 4 coded bits; for 1 / 8 Manchester encoding, information bit 1 can be mapped to 8 coded bits; and for 1 / 16 Manchester encoding, information bit 1 can be mapped to 16 coded bits. Furthermore, the time or frequency domain sequence carried by each OOK symbol in LP WUS can also carry information.
[0033] The embodiments of the present disclosure provide a communication method, a communication device, and a communication system.
[0034] In a first aspect, an embodiment of the present disclosure proposes a communication method, which is executed by a terminal. The method includes: determining first information; and determining an SCS of an LP WUS based on the first information.
[0035] In the case that the LP WUS supports different SCSs, the SCS of the LP WUS may be specified.
[0036] In conjunction with some embodiments of the first aspect, the first information includes at least one of the following:
[0037] SCS relative information between the LP WUS and the reference object; SCS index of the LP WUS; SCS determination parameters of the LP WUS; time domain position of a low power synchronization signal (LPSS) superimposed sequence in the LPSS; and M value of Manchester encoding.
[0038] In conjunction with some embodiments of the first aspect, the reference object includes at least one of the following:
[0039] LPSS; initial bandwidth portion (BWP); activated BWP where the LP WUS is located; control resource set (CORESET) 0; physical downlink shared channel (PDSCH); physical downlink control channel (PDCCH); physical uplink shared channel (PUSCH); physical uplink control channel (PUCCH).
[0040] In conjunction with some embodiments of the first aspect, the SCS relative information between the LP WUS and the reference object includes at least one of the following:
[0041] the deviation between the SCS of the LP WUS and the SCS of the reference object; whether the SCS of the LP WUS is the same as the SCS of the reference object; the proportional relationship between the SCS of the LP WUS and the SCS of the reference object.
[0042] In combination with some embodiments of the first aspect, determining the SCS of the LP WUS according to the SCS index of the LP WUS includes: determining the SCS of the LP WUS from a candidate set of SCSs according to the SCS index of the LP WUS.
[0043] In combination with some embodiments of the first aspect, determining the SCS of the LP WUS according to the SCS determination parameter of the LP WUS includes: calculating the SCS of the LP WUS according to the SCS determination parameter of the LP WUS using an SCS determination formula.
[0044] In combination with some embodiments of the first aspect, determining the SCS of the LP WUS according to the time domain position of the LPSS superposition sequence in the LPSS includes at least one of the following:
[0045] determining a deviation between the SCS of the LP WUS and the SCS of a reference object according to a time domain position of the LPSS superposition sequence in the LPSS, and determining the SCS of the LP WUS according to the deviation;
[0046] determining, according to a time domain position of the LPSS superposition sequence in the LPSS, whether the SCS of the LP WUS is the same as the SCS of a reference object, and determining the SCS of the LP WUS according to the determination result;
[0047] determining a proportional relationship between the SCS of the LP WUS and the SCS of a reference object according to a time domain position of the LPSS superposition sequence in the LPSS, and determining the SCS of the LP WUS based on the proportional relationship;
[0048] Determine a corresponding SCS index according to a time domain position of the LPSS superposition sequence in the LPSS, and determine an SCS of the LP WUS according to the corresponding SCS index;
[0049] According to the time domain position of the LPSS superposition sequence in the LPSS, a corresponding SCS determination parameter is determined, and the SCS of the LP WUS is determined according to the corresponding SCS determination parameter.
[0050] In combination with some embodiments of the first aspect, determining the first information includes: receiving the first information sent by a network device.
[0051] With reference to some embodiments of the first aspect, the first information is carried by at least one of the following:
[0052] Radio Resource Control (RRC) signaling; Downlink Control Information (DCI); Media Access Control (MAC) Control Element (CE); Master Information Block (MIB); System Information Block (SIB).
[0053] In a second aspect, an embodiment of the present disclosure proposes a communication method, which is executed by a network device. The method includes: sending first information to a terminal, where the first information is used to indicate an SCS of an LP WUS.
[0054] In the case that the LP WUS supports different SCSs, the terminal may be made aware of the SCS of the LP WUS.
[0055] In conjunction with some embodiments of the second aspect, the first information includes at least one of the following:
[0056] SCS relative information between the LP WUS and a reference object; an SCS index of the LP WUS; an SCS determination parameter of the LP WUS; and a time domain position of an LPSS superposition sequence in the LPSS.
[0057] In conjunction with some embodiments of the second aspect, the reference object includes at least one of the following:
[0058] LPSS; initial BWP; activated BWP where the LP WUS is located; CORESET0; PDSCH; PDCCH; PUSCH; PUCCH.
[0059] In conjunction with some embodiments of the second aspect, the SCS relative information between the LP WUS and the reference object includes at least one of the following:
[0060] the deviation between the SCS of the LP WUS and the SCS of the reference object; whether the SCS of the LP WUS is the same as the SCS of the reference object; the proportional relationship between the SCS of the LP WUS and the SCS of the reference object.
[0061] In combination with some embodiments of the second aspect, the SCS index of the LP WUS is used to determine the SCS of the LP WUS from a candidate set of SCSs.
[0062] In combination with some embodiments of the second aspect, the SCS determination parameter of the LP WUS is used to calculate the SCS of the LP WUS through an SCS determination formula.
[0063] In conjunction with some embodiments of the second aspect, the time domain position of the LPSS superposition sequence in the LPSS is used to determine at least one of the following:
[0064] the deviation between the SCS of the LP WUS and the SCS of the reference object; whether the SCS of the LP WUS is the same as the SCS of the reference object; the proportional relationship between the SCS of the LP WUS and the SCS of the reference object; the SCS index; and the SCS determination parameter.
[0065] With reference to some embodiments of the second aspect, the first information is carried by at least one of the following:
[0066] RRC message; DCI; MAC CE; MIB; SIB.
[0067] In a third aspect, an embodiment of the present disclosure provides a terminal, comprising: a processing module configured to determine first information; and determine an SCS of an LP WUS according to the first information.
[0068] In a fourth aspect, an embodiment of the present disclosure proposes a network device, comprising: a sending module configured to send first information to a terminal, where the first information is used to indicate an SCS of an LP WUS.
[0069] In the fifth aspect, an embodiment of the present disclosure proposes a communication device, which may be a terminal or a network device, comprising: one or more processors; wherein the processor of the terminal is used to execute the method described in the embodiment of the first aspect, and the processor of the network device is used to execute the method described in the embodiment of the second aspect.
[0070] In a sixth aspect, an embodiment of the present disclosure proposes a communication system, comprising: a terminal and a network device; the terminal executes the method described in the embodiment of the first aspect, and the network device executes the method described in the embodiment of the second aspect.
[0071] In a seventh aspect, an embodiment of the present disclosure provides a communication method, including: a network device sends first information to a terminal; the terminal receives the first information and determines the SCS of the LP WUS based on the first information.
[0072] In an eighth aspect, an embodiment of the present disclosure proposes a computer storage medium, wherein the computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by a processor, the method described in the embodiment of the first aspect or the embodiment of the second aspect can be implemented.
[0073] In a ninth aspect, an embodiment of the present disclosure proposes a computer program product, comprising a computer program, which, after being executed by a processor, can implement the method described in the embodiment of the first aspect or the embodiment of the second aspect.
[0074] In a tenth aspect, an embodiment of the present disclosure proposes a computer program, which, when executed on a computer, enables the computer to execute the method described in the embodiment of the first aspect or the embodiment of the second aspect.
[0075] In an eleventh aspect, an embodiment of the present disclosure provides a chip or a chip system, wherein the chip or chip system includes a processing circuit configured to execute the method according to the embodiment of the first aspect or the embodiment of the second aspect.
[0076] It is understandable that the above-mentioned terminals, network devices, communication systems, and storage media are all used to execute the methods proposed in the embodiments of the present disclosure. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods and will not be repeated here.
[0077] The present disclosure provides a communication method, terminal, network device, and communication system. In some embodiments, the terms "communication method" and "information processing method," "information sending method," and "information receiving method" are interchangeable; the terms "communication device" and "information processing device," "information sending device," and "information receiving device" are interchangeable; and the terms "information processing system," "communication system," "information sending system," and "information receiving system" are interchangeable.
[0078] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
[0079] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.
[0080] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.
[0081] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.
[0082] In the embodiments of the present disclosure, “plurality” refers to two or more.
[0083] 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 used interchangeably.
[0084] In the embodiments of the present disclosure, descriptions such as “at least one of A, B, C…”, “A and / or B and / or C…”, etc. include the situation where any one of A, B, C… exists alone, and also include any combination of any multiple of A, B, C…, and each situation can exist alone; for example, “at least one of A, B, C” includes the situation where A exists alone, B exists alone, C exists alone, the combination of A and B, the combination of A and C, the combination of B and C, and the combination of A, B, and C; for example, A and / or B includes the situation where A exists alone, B exists alone, and the combination of A and B.
[0085] In some embodiments, descriptions such as "in one case A, in another case B," or "in response to one case A, in response to another case B," may include the following technical solutions depending on the situation: executing A independently of B (in some embodiments, A); executing B independently of A (in some embodiments, B); selectively executing A and B (in some embodiments, selecting between A and B); and executing both A and B (in some embodiments, A and B). The same applies when there are more branches, such as A, B, and C.
[0086] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.
[0087] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
[0088] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.
[0089] In some embodiments, terms such as "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 less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.
[0090] In some embodiments, devices, etc. can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. Terms such as "device", "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", and "subject" can be used interchangeably.
[0091] In some embodiments, "network" can be interpreted as devices included in the network (eg, access network equipment, core network equipment, etc.).
[0092] 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 may be used interchangeably.
[0093] 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, narrowband Internet of Things (NB-IoT) device, etc. can be used interchangeably.
[0094] In some embodiments, the access network device, the core network device, or the network device can be replaced by a terminal. For example, the various embodiments of the present disclosure can also be applied to a structure in which the communication between the access network device, the core network device, or the network device and the terminal is replaced by communication between multiple terminals (for example, it can also be called device-to-device (D2D), vehicle-to-everything (V2X), etc.). In this case, it can also be set as a structure in which the terminal has all or part of the functions of the access network device. In addition, language such as "uplink" and "downlink" can also be replaced by language corresponding to communication between terminals (for example, "side"). For example, uplink channels, downlink channels, etc. can be replaced by side channels, and uplinks, downlinks, etc. can be replaced by side links.
[0095] In some embodiments, the terminal may be replaced by an access network device, a core network device, or a network device. In this case, the access network device, the core network device, or the network device may have a structure that has all or part of the functions of the terminal.
[0096] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.
[0097] In some embodiments, data, information, etc. may be obtained with the user's consent.
[0098] In some embodiments, the threshold mentioned in this embodiment may be a numerical value, a constant, or some fixed value.
[0099] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.
[0100] The correspondences shown in the tables of the present disclosure can be configured or predefined. The values of the information in each table are merely examples and can be configured to other values, which are not limited by the present disclosure. When configuring the correspondences between information and parameters, it is not necessarily required to configure all the correspondences shown in each table. For example, in the tables of the present disclosure, the correspondences shown in certain rows may not be configured. For another example, appropriate deformation adjustments can be made based on the above tables, such as splitting, merging, etc. The names of the parameters shown in the titles of the above tables may also adopt other names that can be understood by the communication device, and the values or representations of the parameters may also adopt other values or representations that can be understood by the communication device. When implementing the above tables, other data structures may also be used, such as arrays, queues, containers, stacks, linear lists, pointers, linked lists, trees, graphs, structures, classes, heaps, hash tables or hash tables, etc.
[0101] The predefined in the present disclosure may be understood as defined, predefined, stored, pre-stored, pre-negotiated, pre-configured, solidified, or pre-burned.
[0102] The communication method, terminal, network device and communication system provided by the present disclosure are described in detail below with reference to the accompanying drawings.
[0103] FIG1 shows a structural diagram of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , the system architecture may include a network device 11 and a terminal 12 .
[0104] In some examples, the network device 11 may be an entity on the network side for transmitting or receiving signals. For example, the network device 11 may be a communication satellite, 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 disclosure do not limit the specific technology and specific device form adopted by the network device 11. The network device 11 provided in the embodiments of the present disclosure may be composed of a central unit (CU) and a distributed unit (DU), wherein the CU may also be referred to as a control unit. The CU-DU structure may be used to split the protocol layer of a network device, such as a base station, and the functions of some protocol layers are placed in the CU for centralized control, while the functions of the remaining part or all of the protocol layers are distributed in the DU, and the DU is centrally controlled by the CU.
[0105] In some examples, the terminal 12 can be referred to as a terminal device, user equipment, mobile station (MS), mobile terminal device (MT), NB-IoT terminal, etc. The terminal 12 can also be a car with communication functions, a smart car, a mobile phone, a wearable device, a tablet computer (Pad), a computer with wireless transceiver functions, a virtual reality device, an augmented reality 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 a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, a wireless terminal device in a smart home, etc. The embodiments of the present disclosure do not limit the specific technology and specific device form adopted by the terminal 12.
[0106] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.
[0107] The following embodiments of the present disclosure may be applied to the communication system shown in Figure 1, or a portion thereof, but are not limited thereto. The entities shown in Figure 1 are illustrative only. The communication processing system may include all or part of the entities shown in Figure 1, or may include other entities outside of Figure 1. The number and form of the entities may be arbitrary. The connection relationship between the entities is illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, whether direct or indirect, and wired or wireless.
[0108] The embodiments of the present disclosure can be applied to satellite communications, 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 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 802.17 (WiMAX (registered trademark)), IEEE 802.18 (WiMAX (registered trademark)), IEEE 802.19 (WiMAX (registered trademark)), IEEE 802.20 (WiMAX (registered trademark)), IEEE 802.21 (WiMAX (registered trademark)), IEEE 802.22 (WiMAX (registered trademark)), IEEE 802.23 (WiMAX (registered trademark)), IEEE 802.24 (WiMAX (registered trademark)), IEEE 802.25 (WiMAX (registered trademark)), IEEE 802.26 (WiMAX (registered trademark)), IEEE 802.27 (WiMAX (registered trademark)), IEEE 802.28 (WiMAX (registered trademark)), IEEE 802.29 (WiMAX (registered trademark)), IEEE 802.30 (WiMAX (registered trademark)), IEEE 802.31 (WiMAX (registered trademark)), IEEE 802.32 (WiMAX (registered trademark)), IEEE 802.33 (WiMAX (registered trademark) 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).
[0109] LP WUS can use OOK modulation, such as OOK-1 and OOK-4 modulation. For LP-WUS, even if it uses OOK modulation, cyclic prefix orthogonal frequency division multiplexing (CP-OFDM) can be used to carry the wake-up signal. The SCS of the CP-OFDM symbol used by LP-WUS can be consistent with the SCS used by other new radio (NR) data transmissions in the same transmission frame, that is, LP WUS supports the same SCS. For example, the SCS of the CP-OFDM symbol used by LP-WUS can be the same as any SCS used for other NR data transmissions in the same CP-OFDM symbol, which helps compatibility and resource sharing within the system. In actual applications, the SCS of the CP-OFDM symbol used by LP-WUS may also be inconsistent with the SCS used by other NR data transmissions in the same transmission frame, that is, LP WUS supports different SCSs. In the case where LP WUS supports the same SCS or different SCSs, it is necessary to clarify how to determine the SCS of LP WUS.
[0110] In order to solve the above problem, for this embodiment, the terminal can determine the first information according to the instruction of the network device or the protocol predefinition, and determine the SCS of the LP WUS based on the first information. Then, when the LP WUS supports the same SCS or different SCSs, the SCS of the LP WUS can be clarified, thereby facilitating the terminal to demodulate the received LP WUS signal.
[0111] Furthermore, to illustrate the specific execution process of the above-mentioned communication processing system, FIG2 shows a schematic diagram of a communication method according to an embodiment of the present disclosure. The method is applied to the above-mentioned communication system, as shown in FIG2, and may include the following steps:
[0112] Step S201: The network device sends first information to the terminal.
[0113] In some embodiments, the terminal receives first information sent by the network device.
[0114] In some embodiments, the first information is carried by at least one of the following:
[0115] RRC message; DCI; MAC CE; MIB; SIB.
[0116] In some embodiments, the first information may be used to indicate the SCS of the LP WUS.
[0117] For example, in a network, a network device can wake up terminals that support LP WUS in a cell or change the sleep state of these terminals by sending LP WUS. For terminals that support LP WUS, at least one LP WUS signal is received by a low-power wake-up receiver (LP WUR), and the master radio (MR) wakes up or changes its sleep state according to the information carried by the received LP WUS signal. The change in the sleep state of the MR refers to the mutual switching between super deep sleep, deep sleep, light sleep, shallow sleep and other states, and the awakening of the MR refers to the transition of the MR from any sleep state to the awakened state. The terminal obtains time and frequency synchronization by detecting the low-power synchronization signal (LP SS), and can also complete radio resource management (RRM) measurements through the LP SS. In this case, in order to determine the SCS of the LP WUS, for this embodiment, the terminal can determine the SCS of the LP WUS based on the first information. The first information can be indicated by the network device or predefined by the protocol.
[0118] In some embodiments, the first information may include at least one of A1 to E1:
[0119] A1. Relative SCS information between the LP WUS and a reference object. In some examples, the reference object may be an object with a known SCS, such as a channel or signal. In some examples, the reference object may be other NR data in the CP-OFDM symbol used by the LP-WUS. In some examples, the SCS of the LP WUS may be determined based on the relative SCS information between the LP WUS and the reference object, combined with the SCS of the reference object.
[0120] B1. SCS index of LP WUS. In some examples, the SCS index can be used to identify the SCS. In this embodiment, the corresponding SCS can be found through the SCS index as the SCS of the LP WUS.
[0121] C1. SCS determination parameters of the LP WUS. In some examples, the SCS determination parameters may be used to calculate a corresponding SCS as the SCS of the LP WUS.
[0122] D1. Time domain position of the LPSS superimposed sequence in the LPSS. In some examples, a mapping relationship between the time domain position of the LPSS superimposed sequence in the LPSS and the SCS of the LP WUS corresponding to the LPSS is predefined by the protocol or indicated by the network device. Based on this mapping relationship, the network device can indicate the SCS of the LP WUS corresponding to the LPSS by indicating the time domain position of the LPSS superimposed sequence in the LPSS.
[0123] E1, Manchester encoding M-factor. The M-factor in Manchester encoding is a parameter that measures encoding efficiency. The M-factor represents the number of bits occupied by each original data bit after encoding. In some examples, the protocol predefines a mapping between the SCS of the LP WUS and the M-factor in Manchester encoding. Based on this mapping, the corresponding SCS is found as the SCS of the LP WUS.
[0124] In some embodiments, the reference object in A1 includes at least one of the following:
[0125] LPSS; initial BWP; activated BWP where LP WUS is located; CORESET0; PDSCH; PDCCH; PUSCH; PUCCH.
[0126] Step S202: The terminal determines the SCS of the LP WUS according to the first information.
[0127] In some embodiments, the SCS relative information between the LP WUS and the reference object includes at least one of A2 to C2:
[0128] A2, deviation between the SCS of LP WUS and the SCS of the reference subject;
[0129] B2, whether the SCS of the LP WUS is the same as that of the reference subject;
[0130] C2. Proportional relationship between the SCS of LP WUS and the SCS of the reference object.
[0131] In some examples, the network device displays an SCS_offset between the LP WUS and a reference object through first information, i.e., the deviation between the SCS of the LP WUS and the SCS of the reference object. The reference object may include at least one of the LPSS, the initial BWP, the activated BWP where the LP WUS is located, CORESET0, PDSCH, PDCCH, PUSCH, and PUCCH. Furthermore, the first information sent by the network device may include first signaling, which may include at least one of an RRC message, DCI, MAC CE, MIB, and SIB.
[0132] In one implementation, SCS_offset is an integer not less than 0. The SCS of the reference object is 15*2n kHz, and the SCS_offset configured by the network device is m, then the SCS of the LP WUS is 15*2n+m kHz.
[0133] In one implementation, SCS_offset is an integer. The SCS of the reference object is 15*2n kHz, and the SCS_offset configured by the network device is m. Then, the SCS of the LP WUS is 15*2n+m kHz, and n+m is not less than 0.
[0134] In some examples, the protocol predefines an SCS_offset between the LP WUS and a reference object, i.e., the deviation between the SCS of the LP WUS and the SCS of the reference object. The reference object may include at least one of the LPSS, the initial BWP, the activated BWP where the LP WUS is located, CORESET0, PDSCH, PDCCH, PUSCH, and PUCCH.
[0135] In one implementation, SCS_offset is predefined as m. The SCS of the reference object is 15*2n kHz, and the protocol predefines SCS_offset=m, so the SCS of the LP WUS is 15*2n+m kHz.
[0136] In some examples, the network device displays an SCS indicating the LP WUS through first information. The network device indicates whether the SCS of the LP WUS is the same as the SCS of a reference object through second signaling (i.e., the first information). The reference object may include at least one of the LPSS, the initial BWP, the activated BWP where the LP WUS is located, CORESET0, PDSCH, PDCCH, PUSCH, and PUCCH. The second signaling includes at least one of an RRC message, DCI, MAC CE signaling, MIB, and SIB.
[0137] In one implementation, the second signaling sent by the network device includes an indication bit, where 0 represents that the SCS of the LP WUS is the same as the SCS of the reference object, and 1 represents that the SCS of the LP WUS is twice the SCS of the reference object.
[0138] In one implementation, the second signaling sent by the network device includes an indication bit, where 0 represents that the SCS of the LP WUS is the same as the SCS of the reference object, and 1 represents that the SCS of the LP WUS is different from the SCS of the reference object.
[0139] In some embodiments, the network device indicates the SCS index of the LP WUS through the first information display, and then the terminal can determine the SCS of the LP WUS according to the SCS index of the LP WUS, which may specifically include: determining the SCS of the LP WUS from the candidate set of SCSs according to the SCS index of the LP WUS.
[0140] In some examples, the network device displays the index of the SCS indicating the LP WUS. The protocol predefines a candidate set of SCSs for the LP WUS, and the network device indicates the index of the SCS in the candidate set via third signaling (i.e., the first information). The third signaling includes at least one of an RRC message, DCI, MAC CE signaling, MIB, and SIB.
[0141] In one implementation, the protocol predefines a candidate set of SCSs for the LP WUS of {15, 30, 120}, where index 0 represents 15 kHz, 1 represents 30 kHz, and 2 represents 120 kHz. The network device indicates through third signaling that the index of the SCS in the candidate set is 2, and the SCS of the LP WUS is 120 kHz.
[0142] In some embodiments, the network device indicates the SCS determination parameters of the LP WUS through the first information display, and then the terminal can determine the SCS of the LP WUS according to the SCS determination parameters of the LP WUS, which may specifically include: according to the SCS determination parameters of the LP WUS, calculating the SCS of the LP WUS through the SCS determination formula.
[0143] In some examples, the network device displays an SCS determination parameter indicating the LP WUS. The protocol predefines a formula for determining the SCS of the LP WUS, and the network device indicates the SCS determination parameter in the formula via fourth signaling (i.e., the first information). The fourth signaling includes at least one of an RRC message, DCI, MAC CE signaling, MIB, and SIB.
[0144] In one implementation, the protocol predefines a formula for determining the SCS of the LP WUS as 15*2m. The network device indicates through the fourth signaling that m is 2, and the SCS of the LP WUS is 60 kHz.
[0145] In some embodiments, the network device implicitly indicates the SCS of the LP WUS corresponding to the LP SS by using the time domain position of the LP SS superimposed sequence in the LP SS. The terminal then determines the SCS of the LP WUS based on the time domain position of the LPSS superimposed sequence in the LPSS, which may specifically include at least one of the following:
[0146] A3. Determine the deviation between the SCS of the LP WUS and the SCS of the reference object according to the time domain position of the LPSS superposition sequence in the LPSS, and determine the SCS of the LP WUS based on the deviation;
[0147] B3. Determine whether the SCS of the LP WUS is the same as the SCS of the reference object based on the time domain position of the LPSS superposition sequence in the LPSS, and determine the SCS of the LP WUS based on the determination result;
[0148] C3. Determine a proportional relationship between the SCS of the LP WUS and the SCS of the reference object according to the time domain position of the LPSS superposition sequence in the LPSS, and determine the SCS of the LP WUS based on the proportional relationship;
[0149] D3. Determine the corresponding SCS index according to the time domain position of the LPSS superposition sequence in the LPSS, and determine the SCS of the LP WUS based on the corresponding SCS index;
[0150] E3. Determine corresponding SCS determination parameters according to the time domain position of the LPSS superposition sequence in the LPSS, and determine the SCS of the LP WUS based on the corresponding SCS determination parameters.
[0151] In one implementation, the protocol predefines the candidate set of SCSs for the LP WUS: {15, 30, 120}, where index 0 represents 15 kHz, 1 represents 30 kHz, and 2 represents 120 kHz. The protocol further defines the relationship between the position and index of the LP-SS overlay sequence within the LP-SS time-domain symbol: overlaying the OFDM sequence on the first symbol corresponds to index 0; overlaying the OFDM sequence on the second symbol corresponds to index 1; and overlaying the OFDM sequence on the third symbol corresponds to index 2. If the LP-SS signal transmitted by the network device is overlaid with the OFDM sequence on the third symbol, the SCS of the LP WUS is 120 kHz.
[0152] In one implementation, the protocol predefines the correspondence between the position of the LP-SS overlay sequence in the LP-SS time-domain symbol and X, where X indicates whether the SCS of the LP WUS is identical to the SCS of the reference object. If the OFDM sequence is overlaid on the first symbol, the correspondence is identical; if the OFDM sequence is overlaid on the second symbol, the correspondence is different. If the LP-SS signal transmitted by the network device is overlaid with the OFDM sequence on the second symbol, the SCS of the LP WUS will differ from the SCS of the reference object.
[0153] In one implementation, the protocol predefines the relationship between the position of the LP-SS overlay sequence in the LP-SS time-domain symbol and Y, where Y represents the SCS offset between the LP WUS and the reference. Overlaying the OFDM sequence on the first symbol corresponds to an offset of 0; overlaying the OFDM sequence on the second symbol corresponds to an offset of 1. When the LP-SS signal transmitted by the network device is overlaid with the OFDM sequence on the second symbol, the SCS of the LP WUS differs from that of the reference. The SCS of the LP WUS is calculated based on the offset of 1.
[0154] In one implementation, the protocol predefines the relationship between the position of the LP-SS overlay sequence in the LP-SS time-domain symbol and Z, where Z represents the ratio between the SCS of the LP WUS and the SCS of the reference object. Overlaying the OFDM sequence on the first symbol corresponds to double the SCS of the reference object; overlaying the OFDM sequence on the second symbol corresponds to double the SCS of the reference object. When the LP-SS signal transmitted by the network device is overlaid with the OFDM sequence on the second symbol, the SCS of the LP WUS is double the SCS of the reference object.
[0155] In one implementation, the protocol predefines the relationship between the position of the LP-SS overlay sequence within the LP-SS time-domain symbol and the SCS determination parameter. When the OFDM sequence is overlaid on the first symbol, the corresponding SCS determination parameter is n1; when the OFDM sequence is overlaid on the second symbol, the corresponding SCS determination parameter is n2. When the LP-SS signal transmitted by the network device is overlaid on the second symbol with the OFDM sequence, the SCS of the LP WUS is calculated using the formula for determining the SCS of the LP WUS.
[0156] In some embodiments, the protocol predefines the correspondence between the SCS of the LP WUS and the Manchester encoding M value.
[0157] In one implementation, the protocol predefines the following Table 1 for confirming the SCS of the LP WUS.
[0158] Table 1
[0159] According to the corresponding relationship in Table 1, find the corresponding SCS as the SCS of LP WUS.
[0160] For this embodiment, the terminal can determine the first information according to the instruction of the network device or the protocol predefinition, and determine the SCS of the LP WUS based on the first information. Then, when the LP WUS supports the same SCS or different SCSs, the SCS of the LP WUS can be clarified, thereby facilitating the terminal to demodulate the received LP WUS signal.
[0161] To illustrate the specific execution process of the terminal, Figure 3 shows a flow chart of a communication method according to an embodiment of the present disclosure. When applied to the terminal side, the method may include the following steps.
[0162] Step S301: The terminal determines first information.
[0163] In some embodiments, the first information may be indicated by a network device. Accordingly, determining the first information includes: receiving the first information sent by the network device.
[0164] In some embodiments, the first information is carried by at least one of the following:
[0165] RRC message; DCI; MAC CE; MIB; SIB.
[0166] In some embodiments, the first information may be determined according to a protocol pre-definition.
[0167] Step S302: The terminal determines the SCS of the LP WUS according to the first information.
[0168] In some embodiments, the first information includes at least one of the following:
[0169] SCS relative information between the LP WUS and the reference object;
[0170] The SCS index of the LP WUS;
[0171] SCS determination parameters of the LP WUS;
[0172] The time domain position of the LPSS superposition sequence in the LPSS;
[0173] The M value of Manchester encoding.
[0174] In some embodiments, the reference object includes at least one of the following:
[0175] LPSS; initial BWP; activated BWP where the LP WUS is located; CORESET0; PDSCH; PDCCH; PUSCH; PUCCH.
[0176] In some embodiments, the SCS relative information between the LP WUS and the reference object includes at least one of the following:
[0177] the deviation between the SCS of the LP WUS and the SCS of the reference object; whether the SCS of the LP WUS is the same as the SCS of the reference object; the proportional relationship between the SCS of the LP WUS and the SCS of the reference object.
[0178] In some embodiments, determining the SCS of the LP WUS according to the SCS index of the LP WUS includes: determining the SCS of the LP WUS from a candidate set of SCSs according to the SCS index of the LP WUS.
[0179] In some embodiments, determining the SCS of the LP WUS according to the SCS determination parameter of the LP WUS includes: calculating the SCS of the LP WUS according to the SCS determination parameter of the LP WUS using an SCS determination formula.
[0180] In some embodiments, determining the SCS of the LP WUS according to the time domain position of the LPSS superposition sequence in the LPSS includes at least one of the following:
[0181] determining a deviation between the SCS of the LP WUS and the SCS of a reference object according to a time domain position of the LPSS superposition sequence in the LPSS, and determining the SCS of the LP WUS according to the deviation;
[0182] determining, according to a time domain position of the LPSS superposition sequence in the LPSS, whether the SCS of the LP WUS is the same as the SCS of a reference object, and determining the SCS of the LP WUS according to the determination result;
[0183] determining a proportional relationship between the SCS of the LP WUS and the SCS of a reference object according to a time domain position of the LPSS superposition sequence in the LPSS, and determining the SCS of the LP WUS based on the proportional relationship;
[0184] Determine a corresponding SCS index according to a time domain position of the LPSS superposition sequence in the LPSS, and determine an SCS of the LP WUS according to the corresponding SCS index;
[0185] According to the time domain position of the LPSS superposition sequence in the LPSS, a corresponding SCS determination parameter is determined, and the SCS of the LP WUS is determined according to the corresponding SCS determination parameter.
[0186] For the description of the specific examples in this embodiment, please refer to the corresponding description of the embodiments in Figures 1 and 2, and will not be repeated here.
[0187] For this embodiment, the terminal can determine the first information according to the instruction of the network device or the protocol predefinition, and determine the SCS of the LP WUS based on the first information. Then, when the LP WUS supports the same SCS or different SCSs, the SCS of the LP WUS can be clarified, thereby facilitating the terminal to demodulate the received LP WUS signal.
[0188] Figure 4 shows a flow chart of a communication method according to an embodiment of the present disclosure. As shown in Figure 4, the method is applied to be executed on the network device side and may include the following steps.
[0189] Step S401: The network device sends first information to the terminal.
[0190] In some embodiments, the first information is used to indicate the SCS of the LP WUS.
[0191] In some embodiments, the first information includes at least one of the following:
[0192] SCS relative information between the LP WUS and a reference object; an SCS index of the LP WUS; an SCS determination parameter of the LP WUS; and a time domain position of an LPSS superposition sequence in the LPSS.
[0193] In some embodiments, the reference object includes at least one of the following:
[0194] LPSS; initial BWP; activated BWP where the LP WUS is located; CORESET0; PDSCH; PDCCH; PUSCH; PUCCH.
[0195] In some embodiments, the SCS relative information between the LP WUS and the reference object includes at least one of the following:
[0196] the deviation between the SCS of the LP WUS and the SCS of the reference object; whether the SCS of the LP WUS is the same as the SCS of the reference object; the proportional relationship between the SCS of the LP WUS and the SCS of the reference object.
[0197] In some embodiments, the SCS index of the LP WUS is used to determine the SCS of the LP WUS from a candidate set of SCSs.
[0198] In some embodiments, the SCS determination parameter of the LP WUS is used to calculate the SCS of the LP WUS through an SCS determination formula.
[0199] In some embodiments, the time domain position of the LPSS superposition sequence in the LPSS is used to determine at least one of the following:
[0200] the deviation between the SCS of the LP WUS and the SCS of the reference object; whether the SCS of the LP WUS is the same as the SCS of the reference object; the proportional relationship between the SCS of the LP WUS and the SCS of the reference object; the SCS index; and the SCS determination parameter.
[0201] In some embodiments, the first information is carried by at least one of the following:
[0202] RRC message; DCI; MAC CE; MIB; SIB.
[0203] For the description of the specific examples in this embodiment, please refer to the corresponding description of the embodiments in Figures 1 to 3, and will not be repeated here.
[0204] For this embodiment, the terminal can determine the first information according to the instruction of the network device or the protocol predefinition, and determine the SCS of the LP WUS based on the first information. Then, when the LP WUS supports the same SCS or different SCSs, the SCS of the LP WUS can be clarified, thereby facilitating the terminal to demodulate the received LP WUS signal.
[0205] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.
[0206] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), and the functions of some or all of the above units or modules are realized by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by a configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by software called by the processor, and the rest by hardware circuits.
[0207] In the embodiments of the present disclosure, the processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction reading and execution capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit. The logical relationship of the above-mentioned 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 a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. 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), etc.
[0208] Figure 5 is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure. As shown in Figure 5, the terminal may include a processing module 51. In some embodiments, processing module 51 is configured to execute at least one of the communication steps (e.g., steps S301 to S302, but not limited thereto) performed by the terminal in any of the above methods, and will not be further described herein.
[0209] Figure 6 is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure. As shown in Figure 6, the network device may include a sending module 61. In some embodiments, sending module 61 is configured to execute at least one of the communication steps (e.g., but not limited to, step S401) performed by the network device in any of the above methods, and will not be further described herein.
[0210] In some embodiments, the processing module 51 can be a single module or include multiple submodules. Optionally, the multiple submodules each execute all or part of the steps required by the processing module. Optionally, the processing module 51 can be interchangeable with the processor.
[0211] In some embodiments, the sending module 61 may be separate or integrated, such as being integrated with the receiving module to form a transceiver module, etc. Optionally, the sending module 61 may be interchangeable with a transceiver.
[0212] Figure 7 is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.
[0213] As shown in Figure 7, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process the communication protocol and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. Optionally, the communication device 8100 is used to perform any of the above methods. Optionally, one or more processors 8101 are used to call instructions to enable the communication device 8100 to perform any of the above methods.
[0214] In some embodiments, the communication device 8100 further includes one or more transceivers 8102. When the communication device 8100 includes one or more transceivers 8102, the transceiver 8102 performs the communication steps of transmitting and / or receiving in the above method, and the processor 8101 performs at least one of the other steps. In an optional embodiment, the transceiver may include a receiver and / or a transmitter, and the receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, transceiver circuit, interface circuit, and interface may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.
[0215] In some embodiments, the communication device 8100 further includes one or more memories 8103 for storing data. Alternatively, all or part of the memories 8103 may be located outside the communication device 8100. In alternative embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuits 8104 are connected to the memory 8102 and may be configured to receive data from the memory 8102 or other devices, or to send data to the memory 8102 or other devices. For example, the interface circuits 8104 may read data stored in the memory 8102 and send the data to the processor 8101.
[0216] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 7 . The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.
[0217] FIG8 is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, reference can be made to the schematic diagram of the structure of the chip 8200 shown in FIG8 , but the present disclosure is not limited thereto.
[0218] The chip 8200 includes one or more processors 8201. The chip 8200 is configured to execute any of the above methods.
[0219] In some embodiments, chip 8200 further includes one or more interface circuits 8202. Terms such as interface circuit, interface, and transceiver pins may be used interchangeably. In some embodiments, chip 8200 further includes one or more memories 8203 for storing data. Alternatively, all or part of memory 8203 may be located external to chip 8200. Optionally, interface circuit 8202 is connected to memory 8203 and may be used to receive data from memory 8203 or other devices, or may be used to send data to memory 8203 or other devices. For example, interface circuit 8202 may read data stored in memory 8203 and send the data to processor 8201.
[0220] In some embodiments, the interface circuit 8202 performs at least one of the communication steps, such as sending and / or receiving, in the above-described method. For example, the interface circuit 8202 performing the communication steps, such as sending and / or receiving, in the above-described method means that the interface circuit 8202 performs data exchange between the processor 8201, the chip 8200, the memory 8203, or the transceiver device. In some embodiments, the processor 8201 performs at least one of the steps in the above-described communication method.
[0221] The modules and / or devices described in various embodiments, such as virtual devices, physical devices, and chips, can be arbitrarily combined or separated according to circumstances. Optionally, some or all steps can also be performed collaboratively by multiple modules and / or devices, which is not limited here.
[0222] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute 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 may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.
[0223] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.
[0224] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.
Claims
1. A communication method, characterized in that: Executed by a terminal, the method includes: determining first information; According to the first information, a subcarrier spacing SCS of the low power wake-up signal LP WUS is determined.
2. The method according to claim 1, characterized in that The first information includes at least one of the following: SCS relative information between the LP WUS and the reference object; The SCS index of the LP WUS; SCS determination parameters of the LP WUS; The time domain position of the low power synchronization signal LPSS superposition sequence in the LPSS; The M value of Manchester encoding.
3. The method according to claim 2, characterized in that The reference object includes at least one of the following: the LPSS; Initial part bandwidth BWP; The activated BWP where the LP WUS is located; Control resource set CORESET0; Physical downlink shared channel PDSCH; Physical downlink control channel PDCCH; Physical uplink shared channel PUSCH; Physical Uplink Control Channel PUCCH.
4. The method according to any one of claims 2 to 3, characterized in that The SCS relative information between the LP WUS and the reference object includes at least one of the following: the deviation between the SCS of the LP WUS and the SCS of the reference object; Whether the SCS of the LP WUS is the same as the SCS of the reference object; The proportional relationship between the SCS of the LP WUS and the SCS of the reference object.
5. The method according to any one of claims 2 to 4, characterized in that Determining the SCS of the LP WUS according to the SCS index of the LP WUS includes: According to the SCS index of the LP WUS, the SCS of the LP WUS is determined from a candidate set of SCSs.
6. The method according to any one of claims 2 to 5, characterized in that Determining the SCS of the LP WUS according to the SCS determination parameter of the LP WUS includes: Parameters are determined according to the SCS of the LP WUS, and the SCS of the LP WUS is calculated using an SCS determination formula.
7. The method according to any one of claims 2 to 6, characterized in that Determining the SCS of the LP WUS according to the time domain position of the LPSS superposition sequence in the LPSS includes at least one of the following: determining a deviation between the SCS of the LP WUS and the SCS of a reference object according to a time domain position of the LPSS superposition sequence in the LPSS, and determining the SCS of the LP WUS according to the deviation; determining, according to a time domain position of the LPSS superposition sequence in the LPSS, whether the SCS of the LP WUS is the same as the SCS of a reference object, and determining the SCS of the LP WUS according to the determination result; determining a proportional relationship between the SCS of the LP WUS and the SCS of a reference object according to a time domain position of the LPSS superposition sequence in the LPSS, and determining the SCS of the LP WUS based on the proportional relationship; Determine a corresponding SCS index according to a time domain position of the LPSS superposition sequence in the LPSS, and determine an SCS of the LP WUS according to the corresponding SCS index; According to the time domain position of the LPSS superposition sequence in the LPSS, a corresponding SCS determination parameter is determined, and the SCS of the LP WUS is determined according to the corresponding SCS determination parameter.
8. The method according to any one of claims 1 to 7, characterized in that The determining of the first information includes: Receive the first information sent by the network device.
9. The method according to claim 8, characterized in that The first information is carried by at least one of the following: Radio Resource Control RRC message; Downlink control information DCI; Media Access Control MAC control unit CE; Master Information Block MIB; System Information Block SIB.
10. A communication method, characterized in that: Executed by a network device, the method includes: First information is sent to the terminal, where the first information is used to indicate a subcarrier spacing SCS of a low power wake-up signal LP WUS.
11. The method according to claim 10, characterized in that The first information includes at least one of the following: SCS relative information between the LP WUS and the reference object; The SCS index of the LP WUS; SCS determination parameters of the LP WUS; The low power synchronization signal LPSS superposition sequence is at the time domain position of the LPSS.
12. The method according to claim 11, characterized in that The reference object includes at least one of the following: LPSS; Initial part bandwidth BWP; The activated BWP where the LP WUS is located; Control resource set CORESET0; Physical downlink shared channel PDSCH; Physical downlink control channel PDCCH; Physical uplink shared channel PUSCH; Physical Uplink Control Channel PUCCH.
13. The method according to any one of claims 11 to 12, characterized in that The SCS relative information between the LP WUS and the reference object includes at least one of the following: the deviation between the SCS of the LP WUS and the SCS of the reference object; Whether the SCS of the LP WUS is the same as the SCS of the reference object; The proportional relationship between the SCS of the LP WUS and the SCS of the reference object.
14. The method according to any one of claims 11 to 13, characterized in that The SCS index of the LP WUS is used to determine the SCS of the LP WUS from a candidate set of SCSs.
15. The method according to any one of claims 11 to 14, characterized in that The SCS determination parameter of the LP WUS is used to calculate the SCS of the LP WUS through the SCS determination formula.
16. The method according to any one of claims 11 to 15, characterized in that The time domain position of the LPSS superposition sequence in the LPSS is used to determine at least one of the following: the deviation between the SCS of the LP WUS and the SCS of the reference subject; Whether the SCS of the LP WUS is the same as the SCS of the reference subject; The proportional relationship between the SCS of the LP WUS and the SCS of the reference object; SCS index; SCS determines the parameters.
17. The method according to any one of claims 10 to 16, characterized in that The first information is carried by at least one of the following: Radio Resource Control RRC message; Downlink control information DCI; Media Access Control MAC control unit CE; Master Information Block MIB; System Information Block SIB.
18. A communication method, characterized in that: include: The network device sends first information to the terminal; The terminal receives the first information and determines a subcarrier spacing SCS of a low power wake-up signal LP WUS according to the first information.
19. A terminal, characterized in that: include: a processing module configured to determine first information; According to the first information, a subcarrier spacing SCS of the low power wake-up signal LP WUS is determined.
20. A network device, characterized in that: include: The sending module is configured to send first information to the terminal, where the first information is used to indicate the subcarrier spacing SCS of the low power wake-up signal LP WUS.
21. A communication device, characterized in that: include: one or more processors; The processor is configured to execute the method according to any one of claims 1 to 9.
22. A communication device, characterized in that: include: one or more processors; The processor is configured to execute the method according to any one of claims 10 to 17.
23. A communication system, characterized in that: include: A terminal configured to implement the method according to any one of claims 1 to 9; A network device configured to implement the method according to any one of claims 10 to 17.
24. A computer storage medium, wherein: The computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by the processor, the method according to any one of claims 1 to 9 can be implemented.
25. A computer storage medium, wherein: The computer storage medium stores computer-executable instructions; after the computer-executable instructions are executed by the processor, the method according to any one of claims 10 to 17 can be implemented.
26. A computer program product, comprising a computer program, wherein after being executed by a processor, the computer program can implement the method according to any one of claims 1 to 9.
27. A computer program product, comprising a computer program, wherein after being executed by a processor, the computer program can implement the method according to any one of claims 10 to 17.