WO2025166756A1 - 信息发送和接收方法以及装置 - Google Patents

信息发送和接收方法以及装置

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Publication number
WO2025166756A1
WO2025166756A1 PCT/CN2024/077014 CN2024077014W WO2025166756A1 WO 2025166756 A1 WO2025166756 A1 WO 2025166756A1 CN 2024077014 W CN2024077014 W CN 2024077014W WO 2025166756 A1 WO2025166756 A1 WO 2025166756A1
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WO
WIPO (PCT)
Prior art keywords
information
terminal device
signal
network device
frequency
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
PCT/CN2024/077014
Other languages
English (en)
French (fr)
Inventor
张磊
贾美艺
孙刚
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to PCT/CN2024/077014 priority Critical patent/WO2025166756A1/zh
Publication of WO2025166756A1 publication Critical patent/WO2025166756A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Definitions

  • the embodiments of the present application relate to the field of communication technologies.
  • the inventors discovered that among the vast number of IoT devices, cellular mobile communication systems still lack a large number of lower-cost IoT terminal devices. To provide more robust, reliable, and complete IoT application solutions, supporting lower-cost IoT terminal devices within the 3GPP cellular mobile system has become a pressing issue.
  • an embodiment of the present application provides a method and apparatus for sending and receiving information.
  • a method for sending information including:
  • a terminal device receives a first signal at a first frequency, where the first signal is used at least for timing and/or time synchronization of the terminal device;
  • the terminal device sends second information at a second frequency based on at least the first signal, and the second information is carried on a second signal formed by the terminal device by backscattering the first waveform or on a third signal autonomously generated by the terminal device.
  • an information sending device including:
  • a receiving unit configured to receive a first signal at a first frequency, wherein the first signal is at least used for timing and/or time synchronization of a terminal device;
  • a sending unit sends second information at a second frequency according to at least the first signal, wherein the second information is carried on a second signal formed by the terminal device by backscattering the first waveform or on a third signal autonomously generated by the terminal device.
  • a method for receiving information including:
  • the network device sends a first signal at a first frequency, where the first signal is used at least for timing and/or time synchronization of the terminal device;
  • the network device receives second information at a second frequency, where the second information is carried in a second signal formed by the terminal device by backscattering the first waveform or in a third signal autonomously generated by the terminal device.
  • an information receiving device including:
  • a sending unit configured to send a first signal at a first frequency, wherein the first signal is at least used for timing and/or time synchronization of a terminal device;
  • a receiving unit receives second information at a second frequency, where the second information is carried in a second signal formed by the terminal device by backscattering the first waveform or in a third signal autonomously generated by the terminal device.
  • a communication system including:
  • a network device which sends a first signal at a first frequency, wherein the first signal is at least used for timing and/or time synchronization of a terminal device; and receives second information at a second frequency;
  • a terminal device that receives the first signal at the first frequency and sends the second information at the second frequency at least based on the first signal; the second information is carried on a second signal formed for the terminal device by backscattering the first waveform or a third signal autonomously generated for the terminal device.
  • a terminal device receives a first signal at a first frequency and transmits second information at a second frequency based on at least the first signal. This enables accurate and reliable information transmission and reception between a low-cost device and a network device, effectively reducing the complexity and cost of the terminal device.
  • FIG1 is a schematic diagram of a communication system according to an embodiment of the present application.
  • FIG2 is another schematic diagram of a communication system according to an embodiment of the present application.
  • FIG3 is another schematic diagram of a communication system according to an embodiment of the present application.
  • FIG4 is a schematic diagram of a method for sending information according to an embodiment of the present application.
  • FIG5 is an example diagram of a first frequency and a second frequency according to an embodiment of the present application.
  • FIG6 is an example diagram of a first frequency and a second frequency according to an embodiment of the present application.
  • FIG7 is an example diagram of a first frequency and a second frequency according to an embodiment of the present application.
  • FIG8 is an example diagram of the first frequency and the second frequency according to an embodiment of the present application.
  • FIG9 is a schematic diagram of an information receiving method according to an embodiment of the present application.
  • FIG10 is a schematic diagram of an information sending device according to an embodiment of the present application.
  • FIG11 is a schematic diagram of an information receiving device according to an embodiment of the present application.
  • FIG12 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • FIG13 is a schematic diagram of a network device according to an embodiment of the present application.
  • the terms “first”, “second”, etc. are used to distinguish different elements from the name, but do not indicate the spatial arrangement or temporal order of these elements, and these elements should not be limited by these terms.
  • the term “and/or” includes any one and all combinations of one or more of the associated listed terms.
  • the terms “comprising”, “including”, “having”, etc. refer to the presence of the stated features, elements, components or components, but do not exclude the presence or addition of one or more other features, elements, components or components.
  • communication between devices in the communication system may be carried out according to communication protocols of any stage, such as but not limited to the following communication protocols: 1G (generation), 2G, 2.5G, 2.75G, 3G, 4G, 4.5G and 5G, New Radio (NR), future 6G, etc., and/or other communication protocols currently known or to be developed in the future.
  • 1G generation
  • 2G 2.5G
  • 2.75G 3G
  • 4G 4G
  • 4.5G and 5G 3G
  • NR New Radio
  • future 6G etc.
  • communication protocols currently known or to be developed in the future.
  • network device refers to, for example, a device in a communication system that connects a terminal device to the communication network and provides services for the terminal device.
  • Network devices may include, but are not limited to, base stations (BS), access points (AP), transmission reception points (TRP), broadcast transmitters, mobile management entities (MME), gateways, servers, radio network controllers (RNC), base station controllers (BSC), and the like.
  • base stations may include but are not limited to: NodeB (NodeB or NB), evolved NodeB (eNodeB or eNB) and 5G base station (gNB), IAB host (Donor), etc., and may also include remote radio head (RRH, Remote Radio Head), remote radio unit (RRU, Remote Radio Unit), relay or low-power node (such as femeto, pico, etc.).
  • NodeB NodeB
  • eNodeB or eNB evolved NodeB
  • gNB 5G base station
  • IAB host Donor
  • RRH Remote Radio Head
  • RRU Remote Radio Unit
  • relay or low-power node such as femeto, pico, etc.
  • base station can include some or all of their functions. Each base station can provide communication coverage for a specific geographical area.
  • the term “cell” can refer to a base station and/or its coverage area, depending on the context in which the term is used.
  • the term "user equipment” (UE) or “terminal equipment” (TE) refers to a device that accesses a communication network through a network device and receives network services.
  • a terminal device can be fixed or mobile and may also be referred to as a mobile station (MS), a terminal, a subscriber station (SS), an access terminal (AT), a tag, etc.
  • the terminal device may include but is not limited to the following devices: cellular phone, personal digital assistant digital assistants (PDAs), wireless modems, wireless communication devices, handheld devices, machine-type communication devices, laptop computers, cordless phones, smart phones, smart watches, digital cameras, tags, and devices attached to or associated with items, etc.
  • PDAs personal digital assistant digital assistants
  • wireless modems wireless communication devices
  • handheld devices machine-type communication devices
  • laptop computers cordless phones
  • smart phones smart watches
  • network side or “network device side” refers to one side of the network, which can be a base station or one or more network devices as described above.
  • user side or “terminal side” or “terminal device side” refers to the user or terminal side, which can be a UE or one or more terminal devices as described above.
  • device can refer to either network equipment or terminal equipment.
  • the 5G system can provide reliable authentication, network coordination, and accurate and stable terminal equipment management mechanisms, which can safely and effectively reduce the labor cost during use, thereby reducing the cost of using this type of Internet of Things. It can also optimize the network based on this to improve system capacity and spectrum efficiency.
  • the reduction in deployment costs and usage costs can effectively promote the application of this type of Internet of Things devices in business management and industrial manufacturing, and accelerate the digitalization of the corresponding industries. speed up the process of industrialization, improve production efficiency, and ultimately promote social development more effectively.
  • tag-type terminal devices As a new type of IoT terminal in 5G systems, tag-type terminal devices (Ambient IoT devices, or AIoT devices) are severely cost-constrained. Their hardware capabilities are significantly weaker than those of standard smartphones and other IoT devices supported by existing cellular mobile communication systems. For example, tag-type terminal devices may lack a stable power supply (e.g., using ambient energy harvesting instead of conventional batteries), have narrow bandwidth, and their internal crystal oscillators, due to cost constraints, have limited accuracy and large errors, as well as limited signal processing capabilities.
  • a stable power supply e.g., using ambient energy harvesting instead of conventional batteries
  • tag-type terminal devices require simpler services than smartphones. To reduce costs, tag-type terminal devices do not need to support complex multi-layer management logic.
  • Ambient IoT devices do not support RRC connection-related functions.
  • Figure 1 is a schematic diagram of a communication system according to an embodiment of the present application
  • Figure 2 is another schematic diagram of a communication system according to an embodiment of the present application
  • Figure 3 is yet another schematic diagram of a communication system according to an embodiment of the present application.
  • Figures 1 to 3 schematically illustrate a situation using a terminal device and a network device as an example.
  • a network device may send signals/information/configurations to an AIoT device, or an AIoT device may receive signals/information/configurations from a network device. This may be done directly by the network device and received by the AIoT device, or by the network device via an intermediate node and received by the AIoT device, or by the network device with the help of an auxiliary node and received by the AIoT device, or by the network device using other methods and received by the AIoT device. Unless otherwise specified, this application is not limited to this.
  • an AIoT device when an AIoT device sends a signal/information to a network device, or when a network device receives a signal/information from an AIoT device, the AIoT device may send the signal and the network device may receive it directly, or the AIoT device may send the signal and the network device may receive it via an intermediate node, or the AIoT device may send the signal and the network device may receive it with the help of an auxiliary node, or the AIoT device may send the signal and the network device may receive it through other methods. Unless otherwise specified, the present application is not limited to this.
  • An embodiment of the present application provides a method for sending information, which is described from the perspective of a terminal device.
  • FIG4 is a schematic diagram of a method for sending information according to an embodiment of the present application. As shown in FIG4 , the method includes:
  • a terminal device receives a first signal at a first frequency, where the first signal is used at least for timing and/or time synchronization of the terminal device.
  • the terminal device sends second information at a second frequency based on at least the first signal, where the second information is carried on a second signal formed by the terminal device by backscattering the first waveform or on a third signal autonomously generated by the terminal device.
  • FIG4 above is merely a schematic illustration of an embodiment of the present application, and the present application is not limited thereto.
  • the execution order of the various operations may be appropriately adjusted, and other operations may be added or some operations may be reduced.
  • Those skilled in the art may make appropriate modifications based on the above description, and are not limited to the description of FIG4 above.
  • the existing LTE system and 5GNR system are mainly based on OFDM signals, which are multi-carrier signals.
  • OFDM signals which are multi-carrier signals.
  • each signal can carry its own information using different subcarriers within the same bandwidth, making the signals from different terminal devices orthogonal to each other.
  • the network device can modulate the information sent to different terminal devices onto different subcarriers, with the subcarriers being orthogonal. Different terminal devices can then obtain their own information on the corresponding subcarriers according to the instructions of the network device.
  • Another waveform commonly used in existing LTE systems and 5GNR systems is the SC-FDMA waveform, which is also a multi-carrier signal. Different users can achieve multiplexing by modulating different subcarriers at the same time.
  • the first signal, the second signal, and/or the third signal are all single-carrier signals.
  • single-carrier signals have lower modulation and demodulation complexity and lower requirements on hardware capabilities and accuracy, which can effectively reduce the complexity and cost of terminal devices. Therefore, they are more suitable for AIoT-type terminal devices.
  • the first waveform can be a continuous wave (CW), a carrier wave (CW), a backscattered/backscattering wave, an uplink wave, or the like, but the present application is not limited thereto.
  • the bandwidth of the first waveform is significantly narrower than the bandwidth of the first signal.
  • the bandwidth of the first waveform is 1 kHz, and the bandwidth of the first signal is 100 kHz. This is merely an example, and the present application is not limited thereto.
  • the terminal device sends the second information by backscattering a first waveform.
  • the first waveform is a waveform sent by the network device or a third-party device.
  • the terminal device modulates the information to be sent to the network device onto the first waveform by adjusting its backscatter circuit, and then backscatters the modulated first waveform.
  • the terminal device receives the first waveform at a second frequency and backscatters the modulated first waveform at the second frequency.
  • the terminal device receives the first waveform at a third frequency and backscatters the modulated first waveform at the second frequency.
  • the terminal device autonomously generates the second information and transmits it at the second frequency.
  • the terminal device autonomously generates a first waveform and modulates information to be sent to the network device onto the first waveform and transmits it as the second information at the second frequency.
  • the network device After receiving the second information, the network device does not need to distinguish whether it is sent by the terminal device through backscattering or generated autonomously. It can use a unified receiving algorithm and mechanism to receive the second information, and, in some embodiments, obtain the information carried by the second information.
  • the above schematically illustrates information transmission.
  • the following first describes the first signal.
  • the terminal device performs timing/time synchronization with the network device through the first signal, including at least one of the following:
  • the terminal device determines the symbol length and/or the starting point and/or the ending point of the signal from the network device;
  • the terminal device determines the length and/or starting point and/or ending point of a time unit of a signal from the network device;
  • the terminal device determines the length and/or starting point and/or ending point of the signal from the network device;
  • the terminal device determines a sampling clock and/or a sampling start position and/or a sampling frequency and/or a sampling end position for receiving a signal
  • the terminal device determines the symbol length and/or the starting point and/or the ending point of the transmitted signal
  • the terminal device determines the length and/or the starting point and/or the ending point of the time unit used for sending the signal
  • the terminal device determines the start/length/end of the transmitted signal.
  • the terminal device after the terminal device performs timing/time synchronization with the network device, it receives information/signals from the network device and/or sends information/signals to the network device based on the timing/time synchronization result. This enables accurate and reliable information transmission and reception between low-cost devices and network devices.
  • the first signal carries at least one of the following information: a first identifier, terminal device selection information, and information related to the sending of the second information.
  • the first signal carries at least a first identifier.
  • the first identifier corresponds to N bits.
  • the first identifier is an identifier related to the network device.
  • the first identifier is an identifier of the network device, and/or an identifier of a cell corresponding to the network device, and/or an identifier of the region/site/area where the network device is located.
  • the area (Area) where the network device is located can be a network-defined area consisting of one or more network devices, or an area consisting of the service range of the above network devices, etc.
  • the area can also be a field (Field), domain (Domain), scenario (Scenario), range (Range), application range (Application Range), etc., and this application is not limited to this.
  • the value range of the first identifier may be the same as the physical ID of a traditional cell of a 5G NR system or an LTE system, or the value range of the first identifier may be different from the physical ID of a traditional cell of a 5G NR system or an LTE system.
  • a network device can serve both mobile phones and other IoT devices, as well as AIoT devices.
  • the cell IDs seen by mobile phones and/or other IoT devices are identical to those seen by AIoT devices.
  • the range of cell/network device IDs serving AIoT devices aligns with the existing range of 1008 cell IDs supported by the traditional 5G NR system. This simplifies network planning and management. Reusing the existing range also simplifies standardization discussions and accelerates implementation.
  • the cell ID visible to an AIoT device may be different from the cell ID visible to a mobile phone and/or other IoT devices.
  • the value range of the cell/network device ID serving an AIoT device can be redefined.
  • the original design of 1008 cell IDs was based on the properties of the existing NR system SS sequence. As mentioned above, this sequence is not applicable to AIoT scenarios.
  • Redesigning the cell/network device IDs serving AIoT devices can simplify the logic. For example, if N is 9, the cell/network device ID range for AIoT devices is 0 to 511; or, if N is 10, the cell/network device ID range for AIoT devices is 0 to 1023. For another example, N is 4, 6, or 8. For another example, N is 12 or 16.
  • the first signal carries at least an N-bit first identifier.
  • N may be a positive integer, such as 10.
  • N may also be a non-positive integer, such as log2(1008) or log2(504).
  • the terminal device selection information is used by the network device to notify the terminal device to send the second information related to the first signal, or not to send the second information related to the first signal.
  • the terminal device selection information is a selection condition and/or selection parameter, which is used by the terminal device to determine whether to send the second information related to the first signal, or not to send the second information related to the first signal.
  • the terminal device selection information includes at least one of the following:
  • Terminal device selection identifier
  • Terminal equipment inventory identification
  • the information related to the second information transmission includes at least one of the following information:
  • the information related to the time domain resource where the second information is located includes at least one of the following:
  • the information related to the second information sending method includes at least one of the following:
  • the first sub-signal may carry information. In another example, the first sub-signal may not carry information. In some embodiments, the first sub-signal includes one or more symbols. In some embodiments, the second sub-signal includes one or more symbols.
  • the first signal is schematically described above, and the second signal is schematically described below.
  • the second information includes at least one of the following information:
  • the second information carries at least the second identification information of the terminal device.
  • the second identification information is used to identify the terminal device and/or is used by the network device to identify the terminal device.
  • the second identification information is used to identify the terminal device within a range and/or a period of time.
  • the second identification information uniquely identifies the terminal device within a range and/or a period of time; in another example, the second identification information uniquely corresponds to the terminal device within a range and/or a period of time; in yet another example, the second identification information corresponds one-to-one to the terminal device within a range and/or a period of time.
  • the second identification information is at least one of the following: an inherent identifier of the terminal device, or a sequence or identifier generated or selected by the terminal device itself (randomly), or an identifier configured/allocated/specified by a network device for the terminal device, or other information used to identify the terminal device, etc.
  • the second identification information may be: a number/serial number/index, sequence, or other information used to identify the terminal device, etc.
  • the other information used to identify the terminal device may be inherent information such as the type/attributes of the terminal device, information/attributes of goods or items attached to/associated with the terminal device, application information of the terminal device, geographical information of the terminal device, location information of the terminal device, etc.
  • the second identification information is a terminal device inherent ID, such as a global identification of an electronic device, which is written into a terminal device memory before the terminal device leaves the factory as its unique long-term identification worldwide.
  • the above-mentioned range may be a cell corresponding to the network device and/or a range in which the inherent ID is valid, and the above-mentioned time may be from the time the terminal device leaves the factory to the time the terminal device is abandoned.
  • the second identification information is a sequence or ID generated/selected by the terminal device itself.
  • the second identification information is a sequence or ID generated/selected randomly or non-randomly by the terminal device itself.
  • the second identification information is a temporary ID generated/selected by the terminal device.
  • the temporary ID is an ID generated/selected by the terminal device for temporary use. The temporary ID can subsequently become a formal terminal device identifier or can be replaced by other terminal device identifiers specified by the network device.
  • the terminal device when the terminal device is temporarily communicating/talking with the network device, and/or, the terminal device is in the initial random access process or random access process, and/or, the terminal device is in the process of requesting to access the network, and/or, the terminal device is in the process of requesting to resume communication/connection with the network device, the terminal device can use the above-mentioned (random) autonomously generated/selected sequence or ID as the second identification information.
  • the second identification information is a sequence or ID generated/selected by the terminal device itself, and the aforementioned one range is a cell corresponding to the network device.
  • the aforementioned one range may also be an area defined by a network (which may be implemented by the network device, core network, or other network device).
  • the area may consist of one or more network nodes, the coverage area of one or more network nodes, or the service area of one or more network nodes.
  • the second identification information is a sequence or ID generated/selected by the terminal device itself, and the above-mentioned period of time is before the terminal device establishes a connection with the network device, or the above-mentioned period of time is the time when the terminal device is in a temporary communication/dialogue process with the network device.
  • the network device does not specify an ID for the terminal device
  • the terminal device and the network device use the temporary ID.
  • the terminal device generates/selects an ID by itself and notifies the network device for identifying the terminal device. After the temporary communication/dialogue ends/terminates/is aborted, the ID is no longer used to identify the terminal device.
  • the terminal device randomly generates/selects another temporary ID again, and the temporary ID may be the same as or different from the previous temporary ID.
  • the second identification information is an ID configured/allocated/specified by the network device for the terminal device.
  • the above-mentioned one range may be a cell corresponding to the network device.
  • the above-mentioned one range may also be an area defined by the network (which may be implemented by the network device or the core network or other network devices), which may be composed of one or more network nodes, or may be composed of the coverage area of one or more network nodes, or may be composed of the service area of one or more network nodes.
  • the above-mentioned period of time may start from the ID that the network device previously configured/allocated/specified for the terminal device.
  • the terminal device previously obtained the ID during the connection/communication with the network device, and then the connection/communication was interrupted/suspended/paused/terminated, and this time the terminal The device sends the second signal to request the restoration of the connection/communication.
  • the terminal device can use the ID configured/allocated/specified by the above-mentioned network device for the terminal device as the second identification information for the network device to identify itself and the corresponding connection/communication.
  • the second identification information is represented by L bits, where L is a positive integer, for example, L is 16, 24, 32, 48, etc.
  • the second identification information is schematically described above.
  • the information used to indicate the purpose of the second information (hereinafter referred to as purpose information) will be described below.
  • the purpose information may be the purpose of the terminal device sending the second information to the network device.
  • the purpose information may be explicitly carried by the second information, for example, as a part of the second information.
  • the purpose information may be information specifically used to indicate a purpose.
  • a communication standard protocol predefines one or more purpose information, and the terminal device informs the network device of the purpose of sending the second information this time by indicating the index of the purpose information.
  • the purpose information may also be implicitly indicated by other information.
  • the communication standard pre-divides the candidate set of the second identification information (and/or second identifier) of the terminal device into several subsets, one subset corresponding to one purpose, and another subset corresponding to another purpose.
  • the terminal device indicates the purpose of sending the second information to the network device by selecting the second identification information in one subset or another subset.
  • the purpose information may also be implicitly carried by the second signal, for example, different signal formats and/or signal transmission modes are used to indicate different purposes for sending the second information.
  • the terminal device selects the corresponding signal format and/or signal transmission mode according to the purpose of sending the second signal/second information.
  • second signals/second information for different purposes have different preamble codes, and/or different CRC check generator polynomials, and/or different scrambling code initial phases or different scrambling code generator polynomials, etc., but the present invention is not limited thereto.
  • the purpose information may not be directly carried by the second information or the second signal, but the network device may determine it independently after receiving the second information in combination with other information/features, for example, whether the network device has previously established a connection with the terminal device, the type/attributes of the terminal device, the services of the terminal device, etc.
  • the second information may further include other information required by the first signal.
  • the second information is schematically described above, and the third information and/or fourth information will be described below.
  • the terminal device after sending the second information, the terminal device also receives third information from the network device, and the third information is at least used to carry a second identifier, and the second identifier is an identifier determined (determine)/allocated (allocate)/assigned (assigned) by the network device for the terminal device and/or an identifier of the terminal device confirmed (confirmed) by the network device, or the second identifier is an identifier re-determined/allocated/assigned by the network device for the terminal device and/or an identifier of the terminal device reconfirmed by the network device.
  • the third information explicitly includes part or all of the second identification information, or the third signal used to carry the third information implicitly carries all of the second identification information. This allows the terminal device to determine that it is the receiving terminal device of the third information, or in other words, allows the terminal device to determine that the third information is sent to it by the network device.
  • the second identification information is a sequence or bit string of an identifier.
  • the third information includes or carries part or all of the sequence or bit string carried by the third signal. For example, part of the bits of the sequence or bit string, such as the first X bits or the last X bits, and for example, the X bits starting from the most significant bit or the X bits starting from the least significant bit, where X is a positive integer, and X is less than or equal to the length of the sequence or bit string of the second identification information, and X is 5, 6, 10, 11, 16, etc.
  • the third information is sent in a time domain resource corresponding to the time domain resource of the second information.
  • the CRC check bits of the third information are scrambled using X bits.
  • the second information (third information/fourth information) includes a string of CRC check bits.
  • the string of CRC check bits is used to verify all information carried by the second information.
  • the string of CRC check bits is used to verify part of the information carried by the second information.
  • the second information includes more than one string of CRC check bits.
  • one string of CRC check bits is used to check a portion of information, and another string of CRC check bits is used to check other information.
  • the second identification information and the second identifier are further explained below.
  • the second identification information is at least partially identical to the second identifier. In other embodiments, the second identification information is different from the second identifier.
  • the second identification information and the second identifier are both S-bit length sequences or bit strings.
  • the network device may not distinguish between the second identification information and the second identifier. This provides more flexibility for terminal device management, for example, allowing the network device to directly confirm the second identification information reported by a terminal device in the second information as the second identifier of the terminal device through the third information.
  • the terminal device responds/replies to the first signal
  • the terminal device receives a signal carrying third information from a network device, and the terminal device obtains second identification information that is explicitly or implicitly carried.
  • the terminal device determines that the second identification information is sent by itself to the network device in the second information.
  • the terminal device also obtains the second identifier contained in the third information and stores the second identifier.
  • the second identifier serves as an identifier after the terminal device accesses the network device or after the network device establishes a first connection.
  • the second identifier can be used for uplink and/or downlink communication between the terminal device and the network device.
  • the terminal device After the terminal device receives the third information, or after the network device receives the fourth information, the terminal device successfully accesses the network device, or the first connection between the terminal device and the network device is successfully established.
  • the first network device when the terminal device enters the coverage area of the first network device to the second network device, the first network device will start the handover (HANDOVER) process in advance to ensure that the RRC connection state of the terminal device is not affected when switching between the two network devices, and thereby ensure that the ongoing business during the handover process is not interrupted due to the handover operation.
  • HANDOVER handover
  • the first signal is also used by the network device to inventory/search/call up/conscript the terminal devices within its service range.
  • the network device inventorying the terminal devices within its service range may be to confirm which terminal devices are within its service range, and/or to establish a first connection with a terminal device that has not established a connection/communication for a period of time, and/or to send a signal to a terminal device that has not been connected to the network device for a period of time.
  • the period of time may be an absolute time, such as 200 seconds, 400 seconds, 20 minutes, etc.
  • the period of time may also be a relative time, such as from the last time the network device provided a power supply signal to connect and/or communicate with the terminal device to the time the network device stopped sending the power supply signal, or from the last time the network device sent the first signal to the time before the network device sends the first signal this time, etc.
  • the connection or communication between the terminal device and the network device is interrupted/terminated/suspended/paused.
  • the terminal device enters an unpowered mode/condition.
  • the terminal device enters a sleep/hibernation mode due to insufficient power and/or an instruction from the network device and/or a pre-configuration of the network device and/or a pre-agreed agreement with the network device.
  • the connection or communication between the terminal device and the network device is interrupted or terminated due to reasons such as a decrease in downlink and/or uplink signal quality or obstruction of signal propagation.
  • the terminal device receives a first signal at a first frequency.
  • the terminal device obtains a first identifier based on the first signal.
  • the terminal device determines, based on the first identifier, that the network device is the same as the previously connected network device.
  • the terminal device determines to send second information, where the second information is used by the network device to identify the terminal device, for example, the second information includes second identification information.
  • the second identification information may be a second identifier previously sent by the network device to the terminal device, or the last second identifier. After the network device receives the second identifier, or after the network device sends a signal/information to the terminal device confirming that the second identifier is correctly received (for example, via third information or other information), the suspended first connection is successfully restored or re-established.
  • the second identification information may also be identification information selected or generated by the terminal device and different from the second identifier previously sent by the network device to the terminal device. Specific identification information is described above with reference to the second identification information, which will not be repeated here.
  • the device After receiving the second identification information, the device sends a second identification to the terminal device through a third information, and the second identification is the same as or different from the previous second identification.
  • the terminal device After the terminal device receives the third information, or after the network device receives the fourth information from the terminal device, which is at least used to confirm that the third information is correctly received, the terminal device successfully reconnects to the network device, or the first connection between the terminal device and the network device is successful. Re-establish, or the connection between the terminal device and the network device is successfully restored.
  • services supported by the terminal device are all initiated by the network device for data transmission, such as DO-DTT services and DT services.
  • the terminal device at least supports data transmission initiated by the terminal device (tag), such as DO-A services.
  • the terminal device supports data transmission initiated by the terminal device (tag). After the terminal device successfully accesses the network, or after the terminal device successfully establishes a first connection with the network device, the terminal device needs to initiate data transmission.
  • the terminal device receives a first signal at a first frequency.
  • the terminal device sends second information, where the second information is used at least for the terminal device to initiate data transmission, and/or the terminal device to request uplink data transmission, and/or the terminal device to initiate a service.
  • the second information includes the initiation request and/or a second identifier specified by the network device for the terminal device.
  • the second identifier is used by the network device to identify the terminal device, and the initiation request is used by the network device to determine the purpose of the terminal device sending the second information.
  • the terminal device sends a second identifier to the network device, and the network device identifies the terminal device as a terminal device with established connection and/or a terminal device that has started communication based on at least the second identifier, and determines that the second information is used by the terminal device to initiate data transmission, and/or the terminal device requests uplink data transmission, and/or the terminal device initiates a service.
  • the network device may also refer to the type, capability, etc. of the terminal device.
  • the terminal device re-acquires the second identification (eg, requests other information, requests re-authentication) as an example.
  • the terminal device sending the second information to the network device can also be used for the terminal device to apply to the network device for re-acquisition of the second identifier for some reason, or to apply for a reset, or to apply for reinitialization, or to apply for disabling (disable/kill), or to apply for re-authentication, etc.
  • the terminal device is no longer used in a special scenario (such as the goods attached to it are purchased and become personal property), etc.
  • the terminal device may send the second information to the network device to request information from the network device, for example, update a password, update a configuration, update a second identifier, etc.
  • the first frequency and the second frequency are schematically described below.
  • the first frequency and/or the second frequency is a center frequency, and/or the first The frequency and/or the second frequency is a frequency band having a width.
  • FIG5 is an example diagram of the first frequency and the second frequency according to an embodiment of the present application, showing a case where the first frequency and the second frequency are center frequencies, or a case where the first frequency and the second frequency are frequency bands.
  • the first frequency and the second frequency are the same frequency
  • the first frequency and the second frequency are out of frequency
  • a network device sends a first signal at a first frequency, where the first signal is used at least for timing and/or time synchronization of a terminal device.
  • the terminal device receives a first signal at a first frequency and transmits second information at a second frequency based on at least the first signal. This enables accurate and reliable information transmission and reception between low-cost devices and network devices, effectively reducing the complexity and cost of the terminal device.
  • the embodiment of the present application provides an information sending device, which may be, for example, a terminal device, or one or more components or assemblies configured in the terminal device, and the contents that are the same as those in the first and second aspects of the embodiment are not repeated here.
  • FIG10 is a schematic diagram of an information sending device according to an embodiment of the present application. As shown in FIG10 , the information sending device 1000 according to an embodiment of the present application includes:
  • a receiving unit 1001 is configured to receive a first signal at a first frequency, where the first signal is used at least for timing and/or time synchronization of the terminal device;
  • the sending unit 1002 sends second information at a second frequency according to at least the first signal, where the second information is carried in a second signal formed by the terminal device by backscattering the first waveform or in a third signal autonomously generated by the terminal device.
  • the second information is used for at least one of the following:
  • the terminal device responds/replies to the first signal
  • the network device identifies the terminal device
  • the terminal device requests access to the network device and/or the cell corresponding to the network device and/or the network where the network device is located;
  • the terminal device requests to establish a first connection with the network device and/or the cell corresponding to the network device and/or the network where the network device is located;
  • the terminal device requests to re-access the network device
  • the terminal device requests to resume the communication/dialogue/command process with the network device and/or the network where the network device is located;
  • the terminal device requests uplink data transmission
  • the terminal device obtains a second identifier.
  • the first signal carries at least one of the following information: a first identifier, terminal device selection information, and information related to the sending of the second information.
  • the first identifier is a network device identifier and/or a cell identifier corresponding to the network device.
  • the terminal device selection information is at least used by the terminal device to determine whether to send the second information.
  • the information related to the sending of the second information is at least used by the terminal device to determine the time domain resource location of the second information.
  • the terminal device performs timing/time synchronization with the network device through the first signal, including at least one of the following:
  • the terminal device determines the symbol length and/or the starting point and/or the ending point of the signal from the network device;
  • the terminal device determines the length and/or starting point and/or ending point of a time unit of a signal from the network device;
  • the terminal device determines the symbol length and/or the starting point and/or the ending point of the transmitted signal
  • the terminal device determines the length and/or the starting point and/or the ending point of the time unit used for sending the signal
  • the terminal device determines the start/length/end of the transmitted signal.
  • the first frequency and/or the second frequency is a center frequency, and/or the first frequency and/or the second frequency is a frequency band having a width.
  • the first frequency and the second frequency are the same frequency
  • the first frequency and the second frequency are out of frequency
  • the second information includes at least one of the following information:
  • the second identifier is an identifier assigned/specified by the network device to the terminal device, and/or an identifier of the terminal device determined by the network device.
  • the second identifier is S bits.
  • the second identification information is at least partially identical to the second identifier.
  • the fourth information is at least used to notify the terminal device that the third information is correctly received.
  • the information sending device 1000 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.
  • the terminal device receives a first signal at a first frequency and transmits second information at a second frequency based on at least the first signal. This enables accurate and reliable information transmission and reception between low-cost devices and network devices, effectively reducing the complexity and cost of the terminal device.
  • the present application provides an information receiving device.
  • the device may be, for example, a network device, an intermediate node, or an auxiliary node, or may be one or more components or assemblies configured on the network device, the intermediate node, or the auxiliary node.
  • the contents that are the same as those in the first to third aspects of the embodiments are not repeated here.
  • FIG11 is another schematic diagram of an information receiving device according to an embodiment of the present application. As shown in FIG11 , the information receiving device 1100 includes:
  • a sending unit 1101 is configured to send a first signal at a first frequency, where the first signal is used at least for timing and/or time synchronization of the terminal device;
  • the receiving unit 1102 receives second information at a second frequency, where the second information is carried in a second signal formed by the terminal device through backscattering the first waveform or in a third signal autonomously generated by the terminal device.
  • the information receiving device 1100 may also include other components or modules. For the specific contents of these components or modules, reference may be made to the relevant art.
  • FIG11 only illustrates the connection relationship or signal direction between various components or modules.
  • various related technologies such as bus connection can be used.
  • the above-mentioned components or modules can be implemented by hardware facilities such as processors, memories, transmitters, and receivers; the implementation of this application is not limited to this.
  • the terminal device receives a first signal at a first frequency and transmits second information at a second frequency based on at least the first signal. This enables accurate and reliable information transmission and reception between low-cost devices and network devices, effectively reducing the complexity and cost of the terminal device.
  • An embodiment of the present application also provides a communication system, and reference may be made to Figures 1 to 3 .
  • the contents that are the same as those in the first to fourth embodiments will not be repeated.
  • the communication system 100 may include at least:
  • a network device which sends a first signal at a first frequency, wherein the first signal is at least used for timing and/or time synchronization of a terminal device; and receives second information at a second frequency;
  • a terminal device that receives the first signal at the first frequency and sends the second information at the second frequency at least based on the first signal; the second information is carried on a second signal formed for the terminal device by backscattering the first waveform or a third signal autonomously generated for the terminal device.
  • the embodiment of the present application also provides a terminal device, but the present application is not limited thereto and may also be other devices.
  • Figure 12 is a schematic diagram of a terminal device according to an embodiment of the present application.
  • terminal device 1200 may include a processor 1210 and a memory 1220.
  • memory 1220 stores data and programs and is coupled to processor 1210. It should be noted that this diagram is exemplary; other types of structures may be used to supplement or replace this structure to implement telecommunication or other functions.
  • the processor 1210 may be configured to execute a program to implement the information sending method as described in the embodiment of the first aspect.
  • the processor 1210 may be configured to perform the following control: receiving a first signal at a first frequency, where the first signal is at least used for timing and/or time synchronization of the terminal device; and sending second information at a second frequency based on at least the first signal, where the second information is carried in a second signal formed by the terminal device by backscattering the first waveform or in a third signal autonomously generated by the terminal device.
  • An embodiment of the present application further provides a network device, which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.
  • a network device which may be, for example, a base station, but the present application is not limited thereto and may also be other network devices.
  • FIG 13 is a schematic diagram illustrating the structure of a network device according to an embodiment of the present application.
  • network device 1300 may include a processor 1310 (e.g., a central processing unit (CPU)) and a memory 1320.
  • Memory 1320 is coupled to processor 1310.
  • Memory 1320 may store various data and may also store an information processing program 1330, which is executed under the control of processor 1310.
  • the processor 1310 may be configured to execute a program to implement the information receiving method as described in the embodiment of the second aspect.
  • the processor 1310 may be configured to perform the following control: sending a first signal at a first frequency, The first signal is at least used for timing and/or time synchronization of the terminal device; second information is received at a second frequency, and the second information is carried by the second signal formed by the terminal device through backscattering the first waveform or carried by the third signal autonomously generated by the terminal device.
  • network device 1300 may further include: a transceiver 1340 and an antenna 1350, etc.; wherein, the functions of the above components are similar to those in the prior art and are not described in detail here. It is worth noting that network device 1300 does not necessarily include all the components shown in FIG13 ; in addition, network device 1300 may also include components not shown in FIG13 , and reference may be made to the prior art for details.
  • An embodiment of the present application also provides a computer program, wherein when the program is executed in a terminal device, the program causes the terminal device to execute the information sending method described in the embodiment of the first aspect.
  • An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a terminal device to execute the information sending method described in the embodiment of the first aspect.
  • An embodiment of the present application also provides a computer program, wherein when the program is executed in a network device, the program causes the network device to execute the information receiving method described in the embodiment of the second aspect.
  • An embodiment of the present application also provides a storage medium storing a computer program, wherein the computer program enables a network device to execute the information receiving method described in the embodiment of the second aspect.
  • One or more of the functional blocks and/or one or more combinations of functional blocks described in the accompanying drawings may be implemented as a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or any appropriate combination thereof for performing the functions described in this application.
  • DSP digital signal processor
  • ASIC application-specific integrated circuit
  • FPGA field-programmable gate array
  • One or more of the functional blocks and/or one or more combinations of functional blocks described in the accompanying drawings may also be implemented as a combination of computing devices, such as a combination of a DSP and a microprocessor, multiple microprocessors, one or more microprocessors in communication with a DSP, or any other such configuration.
  • a method for sending information comprising:
  • the terminal device sends second information at a second frequency based on at least the first signal, and the second information is carried on a second signal formed by the terminal device by backscattering the first waveform or on a third signal autonomously generated by the terminal device.
  • a method for receiving information comprising:
  • the network device sends a first signal at a first frequency, where the first signal is used at least for timing and/or time synchronization of the terminal device;

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Abstract

本申请实施例提供一种信息发送和接收方法以及装置,所述方法包括:终端设备在第一频率接收第一信号,所述第一信号至少用于所述终端设备进行定时和/或时间同步;所述终端设备至少根据所述第一信号在第二频率发送第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。

Description

信息发送和接收方法以及装置 技术领域
本申请实施例涉及通信技术领域。
背景技术
从2G系统到4G系统早期时代,蜂窝移动通信系统主要服务对象为手机,即由人持有的移动终端设备类型。随着移动互联网以及物联网的高速发展,从4G系统后期开始至今,蜂窝移动通信系统技术演进过程中考虑以及支持的物联网应用场景越来越丰富,相应地更多种类的物联网设备终端类型得到支持并落地于实际的网络部署和服务应用中,例如,eMTC类型终端设备,NB-IoT类型终端设备,RedCap类型终端设备等。随着物联网终端设备类型多样性的加强,蜂窝移动系统具有了越来越强的、面向垂直行业的业务提供和服务能力。
应该注意,上面对技术背景的介绍只是为了方便对本申请的技术方案进行清楚、完整的说明,并方便本领域技术人员的理解而阐述的。不能仅仅因为这些方案在本申请的背景技术部分进行了阐述而认为上述技术方案为本领域技术人员所公知。
发明内容
发明人发现:在海量物联网设备中,庞大数量且更低成本的物联网终端设备领域还是蜂窝移动通信系统的空白。为了能够提供更稳健、更可靠也更完整的物联网应用解决方案,如何在3GPP蜂窝移动系统中支持更低成本物联网终端设备成为亟待解决的问题。
针对上述问题的至少之一,本申请实施例提供一种信息发送和接收方法以及装置。
根据本申请实施例的一个方面,提供一种信息发送方法,包括:
终端设备在第一频率接收第一信号,所述第一信号至少用于所述终端设备进行定时和/或时间同步;
所述终端设备至少根据所述第一信号在第二频率发送第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
根据本申请实施例的另一个方面,提供一种信息发送装置,包括:
接收单元,其在第一频率接收第一信号,所述第一信号至少用于终端设备进行定时和/或时间同步;
发送单元,其至少根据所述第一信号在第二频率发送第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
根据本申请实施例的另一个方面,提供一种信息接收方法,包括:
网络设备在第一频率发送第一信号,所述第一信号至少用于终端设备进行定时和/或时间同步;
所述网络设备在第二频率接收第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
根据本申请实施例的另一个方面,提供一种信息接收装置,包括:
发送单元,其在第一频率发送第一信号,所述第一信号至少用于终端设备进行定时和/或时间同步;
接收单元,其在第二频率接收第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
根据本申请实施例的另一个方面,提供一种通信系统,包括:
网络设备,其在第一频率发送第一信号,所述第一信号至少用于终端设备进行定时和/或时间同步;在第二频率接收第二信息;
终端设备,其在所述第一频率接收所述第一信号,至少根据所述第一信号在所述第二频率发送所述第二信息;所述第二信息承载于为所述终端设备通过反向散射第一波形形成的第二信号或者为所述终端设备自主生成的第三信号。
本申请实施例的有益效果之一在于:终端设备在第一频率接收第一信号,以及至少根据所述第一信号在第二频率发送第二信息。由此,能够实现低成本设备与网络设备之间准确可靠的信息收发,可以有效降低终端设备的复杂度和成本。
参照后文的说明和附图,详细公开了本申请的特定实施方式,指明了本申请的原理可以被采用的方式。应该理解,本申请的实施方式在范围上并不因而受到限制。在所附权利要求的精神和条款的范围内,本申请的实施方式包括许多改变、修改和等同。
针对一种实施方式描述和/或示出的特征可以以相同或类似的方式在一个或更多个其它实施方式中使用,与其它实施方式中的特征相组合,或替代其它实施方式中的特征。
应该强调,术语“包括/包含”在本文使用时指特征、整件、步骤或组件的存在,但并 不排除一个或更多个其它特征、整件、步骤或组件的存在或附加。
附图说明
在本申请实施例的一个附图或一种实施方式中描述的元素和特征可以与一个或更多个其它附图或实施方式中示出的元素和特征相结合。此外,在附图中,类似的标号表示几个附图中对应的部件,并可用于指示多于一种实施方式中使用的对应部件。
图1是本申请实施例的通信系统的一示意图;
图2是本申请实施例的通信系统的另一示意图;
图3是本申请实施例的通信系统的又一示意图;
图4是本申请实施例的信息发送方法的一个示意图;
图5是本申请实施例的第一频率和第二频率的一示例图;
图6是本申请实施例的第一频率和第二频率的一示例图;
图7是本申请实施例的第一频率和第二频率的一示例图;
图8是本申请实施例的第一频率和第二频率的一示例图;
图9是本申请实施例的信息接收方法的一示意图;
图10是本申请实施例的信息发送装置的一示意图;
图11是本申请实施例的信息接收装置的一示意图;
图12是本申请实施例的终端设备的一示意图;
图13是本申请实施例的网络设备的一示意图。
具体实施方式
参照附图,通过下面的说明书,本申请的前述以及其它特征将变得明显。在说明书和附图中,具体公开了本申请的特定实施方式,其表明了其中可以采用本申请的原则的部分实施方式,应了解的是,本申请不限于所描述的实施方式,相反,本申请包括落入所附权利要求的范围内的全部修改、变型以及等同物。
在本申请实施例中,术语“第一”、“第二”等用于对不同元素从称谓上进行区分,但并不表示这些元素的空间排列或时间顺序等,这些元素不应被这些术语所限制。术语“和/或”包括相关联列出的术语的一种或多个中的任何一个和所有组合。术语“包含”、“包括”、“具有”等是指所陈述的特征、元素、元件或组件的存在,但并不排除存在或添加一个或多个其他特征、元素、元件或组件。
在本申请实施例中,单数形式“一”、“该”等包括复数形式,应广义地理解为“一种”或“一类”而并不是限定为“一个”的含义;此外术语“所述”应理解为既包括单数形式也包括复数形式,除非上下文另外明确指出。此外术语“根据”应理解为“至少部分根据……”,术语“基于”应理解为“至少部分基于……”,除非上下文另外明确指出。
在本申请实施例中,术语“通信网络”或“无线通信网络”可以指符合如下任意通信标准的网络,例如长期演进(LTE,Long Term Evolution)、增强的长期演进(LTE-A,LTE-Advanced)、宽带码分多址接入(WCDMA,Wideband Code Division Multiple Access)、高速报文接入(HSPA,High-Speed Packet Access)等等。
并且,通信系统中设备之间的通信可以根据任意阶段的通信协议进行,例如可以包括但不限于如下通信协议:1G(generation)、2G、2.5G、2.75G、3G、4G、4.5G以及5G、新无线(NR,New Radio)、未来的6G等等,和/或其他目前已知或未来将被开发的通信协议。
在本申请实施例中,术语“网络设备”例如是指通信系统中将终端设备接入通信网络并为该终端设备提供服务的设备。网络设备可以包括但不限于如下设备:基站(BS,Base Station)、接入点(AP、Access Point)、发送接收点(TRP,Transmission Reception Point)、广播发射机、移动管理实体(MME、Mobile Management Entity)、网关、服务器、无线网络控制器(RNC,Radio Network Controller)、基站控制器(BSC,Base Station Controller)等等。
其中,基站可以包括但不限于:节点B(NodeB或NB)、演进节点B(eNodeB或eNB)以及5G基站(gNB),IAB宿主(Donor)等等,此外还可包括远端无线头(RRH,Remote Radio Head)、远端无线单元(RRU,Remote Radio Unit)、中继(relay)或者低功率节点(例如femeto、pico等等)。并且术语“基站”可以包括它们的一些或所有功能,每个基站可以对特定的地理区域提供通信覆盖。术语“小区”可以指的是基站和/或其覆盖区域,这取决于使用该术语的上下文。
在本申请实施例中,术语“用户设备”(UE,User Equipment)或者“终端设备”(TE,Terminal Equipment或Terminal Device)例如是指通过网络设备接入通信网络并接收网络服务的设备。终端设备可以是固定的或移动的,并且也可以称为移动台(MS,Mobile Station)、终端、用户台(SS,Subscriber Station)、接入终端(AT,Access Terminal)、标签(tag),等等。
其中,终端设备可以包括但不限于如下设备:蜂窝电话(Cellular Phone)、个人数 字助理(PDA,Personal Digital Assistant)、无线调制解调器、无线通信设备、手持设备、机器型通信设备、膝上型计算机、无绳电话、智能手机、智能手表、数字相机、标签以及贴附于物品或者与物品相关的设备,等等。
再例如,在物联网(IoT,Internet of Things)等场景下,终端设备还可以是进行监控或测量的机器或装置,例如可以包括但不限于:机器类通信(MTC,Machine Type Communication)终端、车载通信终端、设备到设备(D2D,Device to Device)终端、机器到机器(M2M,Machine to Machine)终端,环境物联网设备(AIoT,Ambient IoT)等等。
此外,术语“网络侧”或“网络设备侧”是指网络的一侧,可以是某一基站,也可以包括如上的一个或多个网络设备。术语“用户侧”或“终端侧”或“终端设备侧”是指用户或终端的一侧,可以是某一UE,也可以包括如上的一个或多个终端设备。本文在没有特别指出的情况下,“设备”可以指网络设备,也可以指终端设备。
RFID系统是面向庞大数量且更低成本的物联网终端设备领域的解决方案。RFID系统应用较为广泛。RFID系统的优点为标签成本较低、价格便宜。RFID标签尺寸小,对其所应用的物品的尺寸、材质等限制较小,因此较易于应用于各种物品管理、物品追踪等场景。虽然RFID标签成本低,但RFID系统的部署成本和使用成本相较于广域商业网络偏高。部署方面,RFID系统通常为局部部署,专网专用,部署成本很难得到有效的分摊。使用方面,若采用人工手持标签读写器方案,人力成本可能成为使用成本的主要开销且很难降低;若采用专用的RFID端口或者网关读取和管理标签,又会明显增加部署成本。此外,RFID系统逻辑架构简单,无线资源管理松散,例如较难对无线电波传输中的干扰较好地进行协调等,因此RFID系统的系统容量和频谱使用效率普遍较低。
相比于现有RFID系统,如果能够利用现有的商业移动通信蜂窝网络(例如LTE系统,5G NR系统等)支持需要标签类型物联网终端设备的行业应用,则可有效降低部署成本,进而降低该类型物联网设备部署门槛。除此以外,现有的商业移动通信蜂窝网络(例如LTE系统,5G NR系统等)在网络安全性和无线资源管理有效性方面也远高于现有RFID系统。
以5G系统为例,5G系统可以提供可靠鉴权、网络协调以及准确且稳定的终端设备管理机制,可以安全有效地减少使用中的人力成本,进而降低该类型物联网的使用成本,还可以基于此优化网络提高系统容量和频谱使用效率。部署成本和使用成本的降低,可以有效推进该类型物联网设备在商业管理以及工业制造中的应用,加快相应行业的数字 化进程、提高生产效率,并最终更有效地促进社会发展。
作为5G系统中的一种新的物联网终端类型,标签类终端设备(Ambient IoT设备,简称为AIoT设备)成本严重受限。设备的硬件能力明显弱于普通智能手机以及其它现有蜂窝移动通信系统所支持的物联网类型设备。例如,标签类终端设备可能没有稳定电源供电(例如,采用环境能量收集代替常规电池),带宽较窄,内部搭载的晶振因成本限制而精度受限、误差较大,以及信号处理能力有限。
除此以外,标签类终端设备需要支持的业务相对智能手机等更为简单。从降低成本的角度考虑,标签类终端设备无需支持逻辑复杂的多层管理,在3GPP 5G NR Release 19Ambient IoT研究项目立项讨论中,已经明确Ambient IoT设备不支持RRC连接相关的功能。
另一方面,RFID系统中,读写器与标签彼此之间仅有通信过程,没有连接的建立。例如,读写器不为标签分配ID,仅在通信时使用临时ID,随后释放。标签仅在读写器对其进行读写操作时验证读写器权限,不区分一个读写器和另一个读写器。如此松散的通信机制如果应用在需要组网的5G NR背景下的AIOT系统中,可能导致AIOT终端设备无法辨识网络系统。当AIOT终端设备同时收到大于一个网络设备信号的时候,其无法区分网络设备,这与5G NR系统中本身安全水平很高的网络架构不符,也不利于网络部署和终端设备管理,更难提高无线资源使用效率。
因此,如何设计一种适用于AIoT设备的管理机制,或者说,如何让终端设备辨识网络设备以及如何让网络设备更好的管理终端设备,以便更好地平衡AIoT设备成本和可达到性能成为在5G NR系统中支持AIoT设备的关键。
以下通过示例对本申请实施例的场景进行说明,但本申请不限于此。
图1是本申请实施例的通信系统的一示意图,图2是本申请实施例的通信系统的另一示意图,图3是本申请实施例的通信系统的又一示意图。图1至图3示意性说明了以终端设备和网络设备为例的情况。
如图1所示,网络设备可以直接与AIoT设备进行通信,直接向AIoT设备发送信号或者直接从AIoT设备接收信号;如图2所示,网络设备也可以经过中间节点(intermediate node),利用中间节点向AIoT设备发送信号或利用中间节点接收来自AIoT设备的信号;如图3所示,网络设备也可以在辅助节点(assisting node)的协助下,向AIoT设备发送信号或接收来自AIoT设备的信号。
中间节点可以是终端设备、UE,也可以是网络节点,如中继(relay)、IAB节点、 直放站(repeater)等,本申请不限于此。中间节点具备与图2中网络设备通信的功能,还至少具备向AIoT设备发送信号和接收来自AIoT设备信号的能力。辅助节点可以是终端设备、UE,也可以是网络节点,如中继(relay)、IAB节点、直放站(repeater)等,本申请不限于此。辅助节点具备与图3中网络设备通信的功能,还至少具备向AIoT设备发送信号和/或接收来自AIoT设备信号的能力。这里所说的向AIoT设备发送信号和接收来自AIoT设备信号符合通信标准协议中关于AIoT设备的规定和描述。
在本申请实施例中,网络设备向AIoT设备发送或者AIoT设备接收来自网络设备的信号/信息/配置等,可以是由网络设备直接发送给AIoT设备而AIoT设备接收,也可以是网络设备经由中间节点向AIoT设备发送的而AIoT设备接收,还可以是网络设备在辅助节点的帮助下发送给AIoT设备而AIoT设备接收,还可以是网络设备通过其它方法发送给AIoT设备而AIoT设备接收。除非特殊说明,本申请不以此为限。
在本申请实施例中,AIoT设备向网络设备发送或者网络设备接收来自AIoT设备的信号/信息等,可以是AIoT设备发送而网络设备直接接收,也可以是AIoT设备发送而网络设备经由中间节点接收,还可以是AIoT设备发送而网络设备在辅助节点的帮助下接收,还可以是AIoT设备发送而网络设备通过其它方法接收。除非特殊说明,本申请不以此为限。
第一方面的实施例
本申请实施例提供一种信息发送方法,从终端设备侧进行说明。
图4是本申请实施例的信息发送方法的一个示意图,如图4所示,该方法包括:
401,终端设备在第一频率接收第一信号,所述第一信号至少用于所述终端设备进行定时和/或时间同步;
402,所述终端设备至少根据所述第一信号在第二频率发送第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
值得注意的是,以上附图4仅对本申请实施例进行了示意性说明,但本申请不限于此。例如可以适当地调整各个操作之间的执行顺序,此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型,而不仅限于上述附图4的记载。
现有LTE系统以及5GNR系统以OFDM信号为主,OFDM信号为多载波信号。不 同终端设备在同一时间向网络设备发送各自的信号,其各自的信号可以通过使用同一个带宽中的不同子载波承载各自的信息,不同终端设备信号彼此正交。反之,网络设备也可以将发送给不同终端设备的信息调制在不同子载波上,子载波间正交,不同终端设备可以根据网络设备的指示在相应的子载波上获取各自的信息。另一种常用于现有LTE系统以及5GNR系统的是SC-FDMA波形,该波形也是多载波信号,不同用户可以在同一时间通过调制不同子载波实现复用。
在本申请实施例中,第一信号和/或第二信号和/或第三信号均为单载波信号。相对多载波信号,单载波信号的调制和解调复杂度低、对硬件设备能力和精度要求也低,可以有效降低终端设备的复杂度和成本,因此更适用于AIoT类型终端设备。
上述第一波形(wave)可以为连续波形(CW,continuous wave),或者承载波形(CW,carrier wave),或者反向散射波形(backscattered/backscattering wave),或者上行波形(uplink wave)等等,本申请不以此为限。所述第一波形带宽明显窄于所述第一信号的带宽。例如,第一波形带宽为1kHz,第一信号的带宽为100kHz,仅作为示例,本申请不以此为限。
在一个例子中,所述终端设备通过反向散射第一波形发送第二信息。所述第一波形为所述网络设备或者第三方设备发送的波形。所述终端设备通过调整其反向散射电路,将准备发送给网络设备的信息调制在所述第一波形上,再将所述调制过的第一波形反向散射(backscatter)出去。例如,所述终端设备在第二频率接收所述第一波形,并在第二频率将所述调制过的第一波形反向散射(backscatter)出去。又例如,所述终端设备在第三频率接收所述第一波形,并在第二频率将所述调制过的第一波形反向散射(backscatter)出去。
在又一个例子中,所述终端设备自主生成所述第二信息并将其在第二频率发射出去。所述终端设备自行生成第一波形并将准备发送给网络设备的信息调制在所述第一波形上,作为第二信息在第二频率发射。
所述网络设备接收到所述第二信息后无需区分其是终端设备通过反向散射发送的还是自主生成的,可以使用统一的接收算法和机制接收第二信息,以及,在一些实施例中,获取该第二信息上承载的信息。
以上示意性说明了信息发送,以下先对第一信号进行说明。
在一些实施例中,所述终端设备通过所述第一信号进行与所述网络设备的定时/时间同步,包括以下至少之一:
所述终端设备确定来自网络设备信号的符号长度和/或起始点和/或结束点;
所述终端设备确定来自网络设备信号的时间单位的长度和/或起始点和/或结束点;
所述终端设备确定来自网络设备信号的长度和/或起始点和/或结束点;
所述终端设备确定用于接收信号的采样时钟和/或采样起始位置和/或采样频率和/或采样结束位置;
所述终端设备确定发送信号的符号长度和/或起始点和/或结束点;
所述终端设备确定应用于发送信号的时间单位的长度和/或起始点和/或结束点;
所述终端设备确定发送信号的起始/长度/结束。
在本申请实施例中,所述终端设备与所述网络设备进行定时/时间同步后,基于该定时/时间同步结果接收来自网络设备的信息/信号,和/或,向网络设备发送信息/信号。由此,能够实现低成本设备与网络设备之间准确可靠的信息收发。
在一些实施例中,所述第一信号承载以下信息至少之一:第一标识、终端设备选择信息、与所述第二信息发送相关的信息。
在一个例子里,第一信号至少承载第一标识。所述第一标识对应N比特。所述第一标识为与所述网络设备有关的标识。例如,所述第一标识为所述网络设备的标识,和/或,所述网络设备对应的小区标识,和/或,所述网络设备所在的区域/场地/领域的标识。
其中,所述网络设备所在的区域(Area)可以是网络定义的由一个或一个以上网络设备组成的区域,或者由上述网络设备的服务范围组成的区域等。这里,区域也可以是场地(Field),领域(domain),场景(scenario),范围(range),应用范围(Application range)等,本申请不以此为限。
在一个例子里,所述第一标识的取值范围可以与5G NR系统或者LTE系统传统小区的物理ID一样,或者,所述第一标识的取值范围可以与5G NR系统或者LTE系统传统小区的物理ID不一样。
例如,一个网络设备既为手机和或其它物联网设备提供服务,又为AIoT设备提供服务,手机和/或其它物联网设备所见的小区ID与AIoT设备可见的小区ID一致。在一个例子里,服务于AIoT设备的小区/网络设备ID的取值范围与传统5G NR系统支持的小区ID范围一致,即现有的1008个。这样有助于简化网络规划管理。重用原范围还可以简化标准化讨论,加速标准落地。
又例如,AIoT设备可见的小区ID与手机和/或其它物联网设备可见的小区ID不一致。在一个例子里,服务于AIoT设备的小区/网络设备ID的取值范围可以重新定义。 原1008个小区ID的设计是基于现有NR系统SS序列的属性设计的,如前所述,该序列无法适用AIoT场景。重新设计服务于AIoT设备的小区/网络设备ID可以简化逻辑。例如,N取值为9,服务于AIoT设备的小区/网络设备ID范围为0~511;或者,N取值为10,服务于AIoT设备的小区/网络设备ID范围为0~1023。又例如,N取值为4或者6或者8。还例如,N取值为12或者16。
在一些实施例中,第一信号至少承载N比特的第一标识。N可以为正整数,例如N取值为10。N也可以为非正整数,例如N取值为log2(1008)或者log2(504)等。
在一些实施例中,所述终端设备选择信息用于网络设备通知所述终端设备发送与所述第一信号有关的所述第二信息,或者,不发送与所述第一信号有关的所述第二信息。
在一些实施例中,所述终端设备选择信息为选择条件和/或选择参数,用于所述终端设备确定发送与所述第一信号有关的所述第二信息,或者,不发送与所述第一信号有关的所述第二信息。
在一些实施例中,所述终端设备选择信息包括以下至少一项:
终端设备标识;
终端设备的参数/属性;
终端设备的进程(session/process)索引;
终端设备选择标识;
终端设备盘点标识。
在一些实施例中,与所述第二信息发送相关的信息至少包括以下信息之一:
与所述第二频率相关的信息,
与所述第二信息所在的时域资源相关的信息,
与所述第二信息内容相关的信息,
与所述第二信息发送方式相关的信息。
在一些实施例中,与所述第二信息所在的时域资源相关的信息至少包括以下之一:
所述第二信息时域资源的起始位置,
所述第二信息时域资源与所述第一信号所在时域位置的时间间隔,
所述第二信息持续时间,
用于所述终端设备确定能够用于(available)所述第二信息发送的时域资源的参数,
能够用于所述第二信息发送的时域资源的起始位置,和/或,持续时间,和/或,结束位置,
用于所述终端设备在能够用于所述第二信息发送的时域资源中选择用于发送所述第二信息的时域资源的参数。
例如,所述能够用于(available)所述第二信号发送的时域资源为,网络设备为终端设备配置/指示该一个或一个以上能够用于(available)所述第二信号发送的时域资源。所述终端设备根据实际情况确定在该时域资源发送所述第二信号,或者,所述终端设备根据实际情况确定在该时域资源不发送所述第二信号。
在一些实施例中,与所述第二信息发送方式相关的信息至少包含以下之一:
与所述第二信息前导码有关的信息,
与所述第二信息CRC校验生成和/或发送有关的信息,
与所述第二信息的信道编码(前向纠错码)有关的信息,
与所述第二信息调制有关的信息,
与所述第二信息符号长度有关的信息。
在一些实施例中,所述第一信号还承载以下信息之一:
用于随机接入有关的参数,
用于下行数据传输的参数,
用于上行数据传输的参数,
与下行控制信道相关的参数。
以上示意性说明了与第一信号相关的内容,所述第一信号承载的上述信息,可以由一个第一信号承载,也可以由一个或者一个以上第一信号承载。由一个第一信号承载可以降低终端设备的实现逻辑。由一个以上第一信号承载可以为网络设备提供更多的灵活度,以便更好地服务基于AIoT设备的不同业务以及不同能力的AIoT设备。
以上示意性说明了第一信号的作用和内容,以下再对第一信号的组成简单说明。
在一些实施例中,第一信号由第一子信号和第二子信号组成。第一子信号至少用于所述终端设备进行定时和/或时间同步和/或用于终端设备在时域上识别第一信号,第二子信号至少用于承载信息。
例如,第一子信号具有唯一性,第一子信号仅在第一信号的前部出现。又例如,第一子信号不具有唯一性。还例如,第一子信号提示第一信号可能出现。终端设备在时域上识别出第一子信号后,再判断/确定是否后面跟随着第二子信号。或者说,在时域上识别出第一子信号意味着后面可能有第二子信号跟随;如果时域上未识别出第一子信号,终端设备不用判断/确定是否有第二子信号。或者说,第一子信号可以单独发送,终端设 备接收到第一子信号后,后续可能有或者没有第二子信号;或者,第一子信号不可以单独发送,终端设备接收到第一子信号后,后续有第二子信号。
在一个例子里,第一子信号可以承载信息。在另一个例子里,第一子信号也可以不承载信息。在一些实施例中,所述第一子信号包含一个或一个以上的符号。在一些实施例中,所述第二子信号包含一个以上的符号。
在一个例子里,第一标识对应N比特,由第一子信号和第二子信号承载。所述第一子信号与所述第一标识对应的N比特中的M比特相关,所述M小于或等于N。N比特中除M比特以外的其它比特由第二子信号承载。在又一个例子里,第二子信号还用于承载除第一标识以外的其它信息。
在一些实施例中,第一信号为单一信号,所述第一信号用于所述终端设备进行定时和/或时间同步并承载信息。
以上示意性说明了第一信号,以下再示意性说明第二信息。
在一些实施例中,所述第二信息包含以下信息的至少之一:
用于标识所述终端设备的第二识别信息;
用于表示所述第二信息的目的的信息。
例如,所述第二信息至少承载所述终端设备的第二识别信息。所述第二识别信息用于标识所述终端设备,和/或,用于所述网络设备识别所述终端设备。所述第二识别信息在一个范围内和/或一段时间内用于标识所述终端设备。在一个示例中,所述第二识别信息在一个范围和/或一段时间内唯一标识所述终端设备;在另一个示例中,所述第二识别信息在一个范围内和/或一段时间内与所述终端设备唯一对应;在又一个示例中,在一个范围内和/或一段时间,第二识别信息与终端设备一一对应。
在一些实施例中,所述第二识别信息为以下至少之一:所述终端设备的固有标识,或者,为所述终端设备自行(随机)生成或选择的序列或标识,或者,为网络设备为所述终端设备配置/分配/指定的标识,或者,用于标识所述终端设备的其它信息等。
所述第二识别信息可以是:编号/序号/索引,序列,或者,用于标识该终端设备的其它信息等等。所述用于标识所述终端设备的其它信息可以是该终端设备的类型/属性等固有信息,可以是该终端设备所的贴附/相关的货物或者物品信息/属性,可以是该终端设备的应用信息,可以是该终端设备的地理信息,可以是该终端设备的位置信息等等。
在一个实施例中,所述第二识别信息为终端设备固有ID,如电子设备全球标识,该ID在终端设备出厂前写入终端设备存储器,作为其在全球范围内唯一的长期标识。 相应地,上述一个范围可以为所述网络设备对应的一个小区和/或该固有ID有效的范围,上述一个时间可以为终端设备出厂至终端设备被放弃。
在又一个实施例中,所述第二识别信息为终端设备自行生成/选择的序列或者ID。所述第二识别信息为终端设备自行随机或者非随机生成/选择的序列或者ID。例如,所述第二识别信息为所述终端设备生成/选择的临时ID。该临时ID为所述终端设备生成/选择的、临时使用的ID。该临时ID后续可以变为正式终端设备标识也可以被网络设备指定的其它终端设备标识代替。又例如,终端设备在与网络设备进行临时通信/对话,和/或,终端设备在初始随机接入过程中或者随机接入过程中,和/或,终端设备在请求接入网络过程中,和/或,终端设备在请求恢复与网络设备的通信/连接的过程中过,该终端设备可以使用上述(随机)自主生成/选择的序列或ID作为第二识别信息。
所述第二识别信息为终端设备自行生成/选择的序列或者ID,上述一个范围为所述网络设备对应的一个小区。上述一个范围还可以是由网络(可以是所述网络设备或者核心网或者其它网络设备实施)定义的一个区域,该区域可以由一个或者大于一个网络节点组成,也可以由一个或者大于一个网络节点的覆盖范围组成,还可以由一个或者大于一个网络节点的服务区域组成。
所述第二识别信息为终端设备自行生成/选择的序列或者ID,上述一段时间为所述终端设备与网络设备建立连接之前,或者,上述一段时间为终端设备在与网络设备进行临时通信/对话过程的时间。例如,网络设备未为该终端设备指定ID时,为了在临时通信/对话的过程中能够识别该终端设备,终端设备与网络设备使用该临时ID。终端设备自行生成/选择了ID并将其告知网络设备用于识别该终端设备。临时通信/对话结束/终止/中止后,该ID不再用于标识该终端设备。在下一次临时通信/对话过程中,所述终端设备重新随机生成/选择又一个临时ID,该又一个临时ID与之前的临时ID可以相同或者不同。
在另一个实施例中,所述第二识别信息为所述网络设备为所述终端设备配置/分配/指定的ID。上述一个范围可以为所述网络设备对应的一个小区。上述一个范围也可以为由网络(可以是所述网络设备或者核心网或者其它网络设备实施)定义的一个区域,该区域可以由一个或者大于一个网络节点组成,也可以由一个或者大于一个网络节点的覆盖范围组成,还可以由一个或者大于一个网络节点的服务区域组成。上述一段时间可以从此前网络设备为所述终端设备配置/分配/指定的该ID开始。例如,此前终端设备在与网络设备的连接/通信中获得该ID,随后该连接/通信中断/挂起/暂停/中止,此次终端 设备发送所述第二信号用于请求恢复该连接/通信,该终端设备可以使用上述网络设备为所述终端设备配置/分配/指定的ID作为第二识别信息用于所述网络设备识别自己以及相应的连接/通信。
在一些实施例中,所述第二识别信息由L比特表征,L为正整数。例如L为16,24,32,48等。
以上示意性说明了第二识别信息,以下再说明用于表示第二信息的目的的信息(以下简称为目的信息)。
例如,所述目的信息可以是所述终端设备向所述网络设备发送第二信息的目的。该目的信息可以由第二信息显式地承载,例如,作为第二信息的一部分。该目的信息可以是专门用于指示目的的信息,例如通信标准协议预先定义一种或者一种以上的目的信息,终端设备通过指示所述目的信息的索引告知网络设备此次发送第二信息的目的。该目的信息还可以利用其它信息隐式指示,例如,通信标准预先将终端设备的第二识别信息(和/或第二标识)候选集合分为若干子集,一个子集对应一个目的,又一个子集对应另外一个目的,所述终端设备通过在一个子集或者又一个子集中选择第二识别信息向所述网络设备指示其发送第二信息的目的。
在一个例子中,该目的信息也可以由第二信号隐式承载,例如不同的信号格式和/或信号发送方式等用于指示不同的发送第二信息的目的。终端设备根据其发送第二信号/第二信息的目的选择相应的信号格式和/或信号发送方式。例如,不同目的的第二信号/第二信息具有不同的前导码,和/或,不同的CRC校验生成多项式,和/或,不同的扰码初始相位或者不同的扰码生成多项式等等,本发明不以此为限。
在另一个例子中,该目的信息也可以不由第二信息或者第二信号直接承载,而是网络设备接收到第二信息后结合其它信息/特征自行确定,例如,网络设备之前是否与该终端设备建立过连接、该终端设备的类型/属性、该终端设备的业务等等。
在一些实施例中,第二信息还可以包括第一信号要求的其它信息。
以上示意性说明了第二信息,以下再说明第三信息和/或第四信息。
在一些实施例中,所述终端设备在发送所述第二信息后,还接收来自所述网络设备的第三信息,所述第三信息至少用于承载第二标识,所述第二标识为所述网络设备为所述终端设备确定(determine)/分配(allocate)/指定(assign)的标识和/或所述网络设备确认(confirm)的所述终端设备的标识,或者,所述第二标识为所述网络设备为所述终端设备重新确定/分配/指定的标识和/或所述网络设备重新确认的所述终端设备的标识。
在一个示例中,所述第二标识由S比特表征,S为正整数。例如S为10,又例如S为16,还例如S为24,32,48等等。
考虑到AIoT设备的硬件能力偏低,S的取值适当为宜,例如S为16或者24。S越大该ID集合支持的终端设备数目越多。以该终端设备第二标识的有效范围为一个网络设备或者一个小区或者一个由若干网络设备/小区/服务区域组成的区域范围为例,2S为该范围内能够通知支持的终端设备的最大数目。S越大,对该范围网络设备的能力要求越高,相应地由于比特数目的增加,对该终端设备的存储和数据处理能力要求也越高。AIoT设备的硬件能力偏低,S取值不宜过大。
所述第三信息还携带用于所述终端设备确认所述第二识别信息的信息。由此,所述终端设备可以确认所述第三信息是网络设备发送给自己的。所述终端设备与另一个终端设备在上述发送第二信号的过程中发生冲突的时候,例如所述终端设备与另一个终端设备在彼此交叠的资源向所述网络设备发送第二信号,第三信息携带用于所述终端设备确认所述第二识别信息的信息有助于冲突解决,例如,有助于所述终端设备和另一个终端设备确认所述第三信息是发给自己的还是发给其它终端设备的。
例如,所述第三信息显式包含所述第二识别信息的部分或全部,或者,用于承载所述第三信息的第三信号隐式承载所述第二识别信息全部。如此以便于所述终端设备确定其为该第三信息的接收终端设备,或者说,用于所述终端设备确定所述第三信息是所述网络设备发送给自己的。
在一个例子中,所述第二识别信息为标识的序列或者比特串。所述第三信息包含或第三信号承载的该序列或者比特串的部分或者全部。例如,该序列或比特串的部分比特,例如前X比特或者后X比特,又例如最高位开始的X比特或者最低位开始的X比特,X为正整数,X小于或等于第二识别信息的序列或者比特串长度,X为5,6,10,11,16等。例如,作为第三信息的一部分。又例如,在与所述第二信息时域资源相对应的时域资源发送所述第三信息。还例如,使用X比特对第三信息的CRC校验比特进行加扰。
在一些实施例中,所述终端设备还可以向所述网络设备发送第四信息,所述第四信息至少用于所述终端设备通知所述网络设备其正确的接收了所述第三信息。
在一些实施例中,所述第二信息和/或第三信息和/或第四信息包含CRC校验比特。
在一个例子里,所述第二信息(第三信息/第四信息)包含一串CRC校验比特。例如,该一串CRC校验比特用于校验所述第二信息承载的全部信息。又例如,该一串CRC校验比特用于校验所述第二信息承载的部分信息。
在另一个例子里,所述第二信息(第三信息/第四信息)包含大于一串的CRC校验比特。例如,一串CRC校验比特用于校验一部分信息,一串CRC校验比特用于校验其它信息等。
例如,所述第二信息(第三信息/第四信息)的CRC校验比特为5比特,6比特,8比特,11比特,16比特,24比特等。
又例如,CRC校验比特的生成多项式为如下之一:
gCRC24A(D)=[D24+D23+D18+D17+D14+D11+D10+D7+D6+D5+D4+D3+D+1]for a CRC length 24;
gCRC24B(D)=[D24+D23+D6+D5+D+1]for a CRC length 24;
gCRC24C(D)=[D24+D23+D21+D20+D17+D15+D13+D12+D8+D4+D2+D+1]for a CRC length 24;
gCRC16(D)=[D16+D12+D5+1]for a CRC length 16;
gCRC11(D)=[D11+D10+D9+D5+1]for a CRC length 11;
gCRC6(D)=[D6+D5+1]for a CRC length 6。
以下再进一步说明第二识别信息和第二标识。
在一些实施例中,所述第二识别信息与所述第二标识至少部分相同。在另一些实施例中,所述第二识别信息与所述第二标识不同。
在一个例子中,第二识别信息与第二标识均为S比特长度序列或比特串。
例如,网络设备可以对第二识别信息与第二标识区分,例如,标准预先规定,在S比特对应的0~2S-1(或者1~2S)范围内,可供终端设备选择的第二识别信息与可供网络设备指定的第二标识的范围不同,例如一个示例,可供终端设备选择的第二识别信息范围为0~Z,可供终端设备选择的第二识别信息范围为Z+1~2S-1。由此,可以简化终端设备管理,使得网络设备在收到第二信息的时候根据发送该第二信息的终端设备发送的第二识别信息区分该终端设备发送第二信息的目的等(无需终端设备额外上报目的)。
可供终端设备选择的第二识别信息可以是标准预定义的(例如,Z为标准规定的固定值),也可以通过第一信号承载的参数进行调整(例如,Z为终端设备根据第一信号承载的参数计算所得)。例如,第一信号还承载用于所述终端设备计算第二识别信息范围的参数。需要说明的是,这里仅以第二识别信息和第二标识划分0~2S-1集合作为示例,该集合也可以支持其它功能/属性的ID,本发明不以此为限。
再例如,网络设备也可以对第二识别信息与第二标识不区分。由此,为终端设备管理提供更多的灵活性,例如,允许网络设备直接将一个终端设备在第二信息上报的第二识别信息通过第三信息确认(confirm)为该终端设备的第二标识。
以上对于各个信号和信息进行了示意性说明,以下再进一步说明第二信息。
在一些实施例中,所述第二信息用于如下至少之一:
所述终端设备响应/回复所述第一信号;
网络设备识别所述终端设备;
所述终端设备请求接入所述网络设备和/或所述网络设备对应的小区和/或所述网络设备所在的网络;
所述终端设备请求与所述网络设备和/或所述网络设备对应的小区和/或所述网络设备所在的网络建立第一连接;
所述终端设备请求与所述网络设备和/或所述网络设备对应的小区和/或所述网络设备所在的网络恢复第一连接;
所述终端设备请求重新接入所述网络设备;
所述终端设备请求与所述网络设备和/或所述网络设备所在的网络恢复通信/对话/命令进程;
所述终端设备请求上行数据发送;
所述终端设备获取第二标识。
以下先以终端设备初次接收到网络设备的信号为例进行说明。
在一些实施例中,所述网络设备不知道所述终端设备的存在,所述终端设备此前未曾与所述网络设备建立连接,和/或,未曾成功地向所述网络设备发送过用于表征自己的标识。
所述终端设备设备可以根据其在第一频率接收的第一信号,与网络设备同步并获取第一标识,所述第一标识为所述网络设备标识和/或所述网络设备对应的小区标识。
所述终端设备出厂后第一次上电,或者,所述终端设备根据获得的第一标识确定所述网络设备与此前连接的网络设备不同,或者,所述终端设备从低电量模式进入到高电量模式等。例如,部分AIOT设备不具备常规电池,依靠收集环境电波性能量充电以维持常规运作。该供电电波可以由网络设备提供,也可以由第三方设备提供,本申请不以此为限。因此,存在AIOT设备因电力不足掉电的情况或者电量不稳的情况,也可以是网络设备不需要与AIOT设备通信,停止供电电波发送从而AIOT设备进入睡眠/休眠等状态。
所述终端设备确定向所述网络设备发送第二信息。所述第二信息用于所述网络设备识别所述终端设备,例如,所述第二信息包含第二识别信息。关于所述第二识别信息, 可参照上文描述,这里不再赘述。
在一个例子中,所述第二信息用于所述终端设备请求接入所述网络设备和/或所述网络设备对应的小区,或者,还用于所述终端设备请求与所述网络设备和/或所述网络设备对应的小区和/或所述网络设备所在的网络建立第一连接。
所述网络设备接收来自所述终端设备的第二信息,并获取其中的第二识别信息。所述网络设备为所述终端设备确定/分配第二标识。所述网络设备向所述终端设备发送第三信息。所述第二标识包含于所述第三信息。所述第二标识与所述第二识别信息可以相同或者不同。当所述第二标识与所述第二识别信息相同时,所述第三信息可以只包含二者之一,并包含信息,用于向终端设备指示二者相同。
所述终端设备接收来自网络设备的承载第三信息的信号,所述终端设备获取显式或者隐式承载的第二识别信息。所述终端设备确定该第二识别信息是自己在第二信息中发送给网络设备的。所述终端设备还获取第三信息中包含的第二标识,存储第二标识。例如,所述第二标识作为所述终端设备接入所述网络设备后或者所述网络设备建立第一连接后的标识。所述第二标识可用于所述终端设备与网络设备的上行和/或下行通信。
所述终端设备向所述网络设备发送第四信息。所述第四信息至少用于响应/回复所述第三信息。例如,所述第四信息至少用于通知网络设备,所述第三信息被正确接收。
终端设备接收到所述第三信息后,或者,网络设备接收到所述第四信息后,所述终端设备成功接入所述网络设备,或者,所述终端设备与所述网络设备的第一连接成功建立(establish)。
所述第一连接不同于现有5G NR系统的RRC连接。所述网络设备不维护所述第一连接的连续性。所述终端设备离开第一网络设备进入到第二网络设备,所述终端设备与所述第一网络设备建立的连接中断/中止/结束。所述终端设备重新与所述第二网络设备建立另一个第一连接。
所述第一连接是终端设备与网络设备的连接。所述第一连接建立后,所述网络设备成为所述终端设备的服务网络设备,所述终端设备所在的、与所述网络设备相应的小区为所述终端设备的服务小区。与现有5G系统不同的是,现有5G NR系统RRC连接是终端设备与网络之间的连接而不是终端设备与网络设备的连接。现有系统中,终端设备从第一网络设备覆盖范围进入到第二网络设备的时候,第一网络设备会提前启动切换(HANDOVER)流程保证该终端设备在两个网络设备之间切换的时候,其RRC连接状态不受影响,并以此确保切换过程的进行中的业务不因为切换操作中断。
在一个例子中,所述第一信号还用于所述网络设备盘点(inventory)/寻找(search)/召集(call up)/征召(conscript)其服务范围的终端设备。所述网络设备盘点其服务范围的终端设备可以是确认其服务范围内有哪些终端设备,和/或,与一段时间内未建立过连接/通信的终端设备建立第一连接,和/或,向一段时间内未连接过该网络设备的终端设备发送信号。该一段时间可以是绝对时间,例如200秒,400秒,20分钟等。该一段时间也可以是相对时间,例如从上一次网络设备提供供电信号与终端设备连接和/或通信开始至网络设备停止发送供电信号为止,又例如从上一次网络设备发送第一信号至此次网络设备发送第一信号前等等。
以下再以终端设备请求恢复连接/通信为例进行说明。
在一些实施例中,终端设备成功接入到网络后,或者,终端设备成功与网络设备建立连接后,终端设备与网络设备之间的连接或者通信中断/中止/挂起/暂停。例如,终端设备进入无供电模式/情况。例如,终端设备设备因电力不足和/或网络设备指示和/或网络设备预先配置和/或与网络设备的预先约定而进入到睡眠/休眠模式。例如,因下行信号和/或上行信号质量下降/信号传播受阻等原因,终端设备与网络设备之间的连接或者通信中断或者终止。
所述终端设备在第一频率接收第一信号。所述终端设备根据所述第一信号获取第一标识。所述终端设备根据该第一标识确定所述网络设备与此前连接的网络设备相同。所述终端设备确定发送第二信息,所述第二信息用于所述网络设备识别所述终端设备,例如,所述第二信息包含第二识别信息。
所述第二识别信息可以是此前该网络设备此前发送给该终端设备的第二标识,或者,最后一个第二标识。网络设备收到该第二标识后,或者,网络设备向所述终端设备发送用于确认该第二标识正确接收的信号/信息后(例如,通过第三信息或者其它信息),所述中止的第一连接恢复成功或者重新建立成功。
所述第二识别信息也可以是所述终端设备选择或者生成的、不同于该网络设备此前发送给该终端设备的第二标识的识别信息。具体识别信息参照此前针对第二识别信息的描述,此处不再赘述。
所述设备接收到所述第二识别信息后,通过第三信息向所述终端设备发送第二标识,该第二标识与此前第二标识相同或不同。终端设备接收到所述第三信息后,或者,网络设备接收到来自终端设备的、至少用于确定第三信息正确接收的第四信息后,所述终端设备成功重新接入所述网络设备,或者,所述终端设备与所述网络设备的第一连接成功 重新建立(re-establish),或者,所述终端设备与所述网络设备的连接得以成功恢复。
以下再以终端设备重新发送上行资源为例进行说明。
在一些实施例中,终端设备支持的业务均由网络设备发起数据传输,例如DO-DTT业务和DT业务等。在又一些实施例中,终端设备至少支持由终端设备(标签)主动发起的数据传输,例如DO-A业务等。终端设备支持由终端设备(标签)主动发起的数据传输。终端设备成功接入到所述网络后,或者,终端设备成功与所述网络设备建立第一连接后,该终端设备需要发起数据传输。
所述终端设备在第一频率接收第一信号。所述终端设备发送第二信息,所述第二信息至少用于所述终端设备发起数据发送,和/或,所述终端设备请求上行数据传输,和/或,所述终端设备发起业务等。所述第二信息包含发起请求和/或所述网络设备为所述终端设备指定的第二标识。
在一个实施方式中,所述第二标识用于网络设备识别所述终端设备,所述发起请求用于所述网络设备确定所述终端设备发送第二信息的目的。在又一个实施方式中,所述终端设备向网络设备发送第二标识,所述网络设备至少根据所述第二标识识别出所述终端设备为已建立连接终端设备和/或已开始通信终端设备确定,所述第二信息用于所述终端设备发起数据发送,和/或,所述终端设备请求上行数据传输,和/或,所述终端设备发起业务。所述网络设备在确定所述第二信息用于所述终端设备发起数据发送等时,也可以参考所述终端设备的类型、能力等。
以下再以终端设备重新获取第二标识等(例如请求其他信息、请求重新鉴权)为例进行说明。
在一些实施例中,终端设备向网络设备发送第二信息还可以用于所述终端设备因为一些原因向网络设备申请重新获取第二标识,或者,申请重置(reset),或者,申请重新初始化,或者,申请去使能(disable/kill),或者,申请重新鉴权等。
例如,因为与网络设备通信错误次数过多等,又例如,所述终端设备设备所贴附和/或相关的物品发生了变化,例如所述终端设备在特殊场景下停止使用(如其所贴附的商品被购买变成个人所有物)等。
在又一些实施例中,终端设备向网络设备发送第二信息还可以用于向网络设备请求信息,例如,更新密码,更新配置,更新第二标识等。
以下再对第一频率和第二频率进行示意性说明。
在一些实施例中,所述第一频率和/或所述第二频率为中心频率,和/或,所述第一 频率和/或所述第二频率为具有宽度的频带。
图5是本申请实施例的第一频率和第二频率的一示例图,示出了第一频率和第二频率为中心频率的情况,或者,第一频率和第二频率为频带的情况。
在一些实施例中,所述第一频率和所述第二频率同频;
所述同频包括中心频点相同,或者,中心频点不同但频带范围交叠,或者,在同一个信道和/或带宽内且彼此交叠,或者额,在同一个信道和/或带宽内但彼此不交叠。
在一些实施例中,所述第一频率和所述第二频率异频;
所述异频包括中心频点不同但频带范围交叠,或者,中心频点不同且频带范围不交叠,或者,不在同一个信道和/或带宽内。
图6是本申请实施例的第一频率和第二频率的一示例图,图7是本申请实施例的第一频率和第二频率的一示例图,图8是本申请实施例的第一频率和第二频率的一示例图。如图6和图7所示,以频带和频带为例示出了第一频率和第二频率的一些情况,如图8所示,以频带和频点为例示出了第一频率和第二频率的一些情况。本申请不限于图5至图8的情况。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也可以将以上各个实施例中的一种或多种结合起来。
由上述实施例可知,终端设备在第一频率接收第一信号,以及至少根据所述第一信号在第二频率发送第二信息。由此,能够实现低成本设备与网络设备之间准确可靠的信息收发,可以有效降低终端设备的复杂度和成本。
第二方面的实施例
本申请实施例提供一种信息接收方法,从网络设备侧进行说明。第二方面的实施例可以与第一方面的实施例结合起来,与第一方面的实施例相同的内容不再赘述。
图9是本申请实施例的信息接收方法的一示意图,如图9所示,该方法包括:
901,网络设备在第一频率发送第一信号,所述第一信号至少用于终端设备进行定时和/或时间同步;
902,网络设备在第二频率接收第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
值得注意的是,以上附图9仅对本申请实施例进行了示意性说明,但本申请不限于 此。例如可以适当地调整各个操作之间的执行顺序,此外还可以增加其他的一些操作或者减少其中的某些操作。本领域的技术人员可以根据上述内容进行适当地变型,而不仅限于上述附图9的记载。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也可以将以上各个实施例中的一种或多种结合起来。
由上述实施例可知,终端设备在第一频率接收第一信号,以及至少根据所述第一信号在第二频率发送第二信息。由此,能够实现低成本设备与网络设备之间准确可靠的信息收发,可以有效降低终端设备的复杂度和成本。
第三方面的实施例
本申请实施例提供一种信息发送装置。该装置例如可以是终端设备,也可以是配置于终端设备的某个或某些部件或者组件,与第一、二方面的实施例相同的内容不再赘述。
图10是本申请实施例的信息发送装置的一示意图,如图10所示,本申请实施例的信息发送装置1000包括:
接收单元1001,其在第一频率接收第一信号,所述第一信号至少用于所述终端设备进行定时和/或时间同步;
发送单元1002,其至少根据所述第一信号在第二频率发送第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
在一些实施例中,所述第二信息用于如下至少之一:
所述终端设备响应/回复所述第一信号;
网络设备识别所述终端设备;
所述终端设备请求接入所述网络设备和/或所述网络设备对应的小区和/或所述网络设备所在的网络;
所述终端设备请求与所述网络设备和/或所述网络设备对应的小区和/或所述网络设备所在的网络建立第一连接;
所述终端设备请求与所述网络设备和/或所述网络设备对应的小区和/或所述网络设备所在的网络恢复第一连接;
所述终端设备请求重新接入所述网络设备;
所述终端设备请求与所述网络设备和/或所述网络设备所在的网络恢复通信/对话/命令进程;
所述终端设备请求上行数据发送;
所述终端设备获取第二标识。
在一些实施例中,所述第一信号承载以下信息至少之一:第一标识、终端设备选择信息、与所述第二信息发送相关的信息。
在一些实施例中,所述第一标识为网络设备标识和/或网络设备对应的小区标识。
在一些实施例中,所述终端设备选择信息至少用于所述终端设备确定是否发送所述第二信息。
在一些实施例中,所述与第二信息发送相关的信息至少用于所述终端设备确定所述第二信息的时域资源位置。
在一些实施例中,所述终端设备通过所述第一信号进行与所述网络设备的定时/时间同步,包括以下至少之一:
所述终端设备确定来自网络设备信号的符号长度和/或起始点和/或结束点;
所述终端设备确定来自网络设备信号的时间单位的长度和/或起始点和/或结束点;
所述终端设备确定来自网络设备信号的长度和/或起始点和/或结束点;
所述终端设备确定用于接收信号的采样时钟和/或采样起始位置和/或采样频率和/或采样结束位置;
所述终端设备确定发送信号的符号长度和/或起始点和/或结束点;
所述终端设备确定应用于发送信号的时间单位的长度和/或起始点和/或结束点;
所述终端设备确定发送信号的起始/长度/结束。
在一些实施例中,所述第一频率和/或所述第二频率为中心频率,和/或,所述第一频率和/或所述第二频率为具有宽度的频带。
在一些实施例中,所述第一频率和所述第二频率同频;
所述同频包括中心频点相同,或者,中心频点不同但频带范围交叠,或者,在同一个信道和/或带宽内且彼此交叠,或者额,在同一个信道和/或带宽内但彼此不交叠。
在一些实施例中,所述第一频率和所述第二频率异频;
所述异频包括中心频点不同但频带范围交叠,或者,中心频点不同且频带范围不交叠,或者,不在同一个信道和/或带宽内。
在一些实施例中,所述第二信息包含以下信息的至少之一:
用于标识所述终端设备的第二识别信息;
用于表示所述第二信息的目的的信息。
在一些实施例中,所述第二识别信息用于在一个范围内和/或一段时间内标识所述终端设备。
在一些实施例中,所述第二识别信息为所述终端设备的固有标识,或者,为所述终端设备自行生成或选择的序列或标识,或者为网络设备为所述终端设备配置/分配/指定的标识。
在一些实施例中,所述第二识别信息为L比特。
在一些实施例中,所述终端设备接收来自网络设备的第三信息,所述第三信息至少用于承载第二标识。
在一些实施例中,所述第二标识为所述网络设备为所述终端设备分配/指定的标识,和/或,为所述网络设备确定的所述终端设备的标识。
在一些实施例中,所述第二标识为S比特。
在一些实施例中,所述第三信息还承载用于所述终端设备确认第二识别信息的信息。
在一些实施例中,所述第三信息显式地包含所述第二识别信息的部分或全部,或者,用于承载所述第三信息的第三信号隐式地承载所述第二识别信息的部分或全部。
在一些实施例中,所述第二识别信息与所述第二标识至少部分相同。
在一些实施例中,所述第二识别信息与所述第二标识不同。
在一些实施例中,所述终端设备向所述网络设备发送第四信息,所述第四信息至少用于响应所述第三信息。
在一些实施例中,所述第四信息至少用于通知终端设备所述第三信息被正确接收。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是,以上仅对与本申请相关的各部件或模块进行了说明,但本申请不限于此。信息发送装置1000还可以包括其他部件或者模块,关于这些部件或者模块的具体内容,可以参考相关技术。
此外,为了简单起见,图10中仅示例性示出了各个部件或模块之间的连接关系或信号走向,但是本领域技术人员应该清楚的是,可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现; 本申请实施并不对此进行限制。
由上述实施例可知,终端设备在第一频率接收第一信号,以及至少根据所述第一信号在第二频率发送第二信息。由此,能够实现低成本设备与网络设备之间准确可靠的信息收发,可以有效降低终端设备的复杂度和成本。
第四方面的实施例
本申请实施例提供一种信息接收装置。该装置例如可以是网络设备或中间节点或辅助节点,也可以是配置于网络设备或中间节点或辅助节点的某个或某些部件或者组件,与第一至三方面的实施例相同的内容不再赘述。
图11是本申请实施例的信息接收装置的另一示意图,如图11所示,信息接收装置1100包括:
发送单元1101,其在第一频率发送第一信号,所述第一信号至少用于所述终端设备进行定时和/或时间同步;
接收单元1102,其在第二频率接收第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
以上各个实施例仅对本申请实施例进行了示例性说明,但本申请不限于此,还可以在以上各个实施例的基础上进行适当的变型。例如,可以单独使用上述各个实施例,也可以将以上各个实施例中的一种或多种结合起来。
值得注意的是,以上仅对与本申请相关的各部件或模块进行了说明,但本申请不限于此。信息接收装置1100还可以包括其他部件或者模块,关于这些部件或者模块的具体内容,可以参考相关技术。
此外,为了简单起见,图11中仅示例性示出了各个部件或模块之间的连接关系或信号走向,但是本领域技术人员应该清楚的是,可以采用总线连接等各种相关技术。上述各个部件或模块可以通过例如处理器、存储器、发射机、接收机等硬件设施来实现;本申请实施并不对此进行限制。
由上述实施例可知,终端设备在第一频率接收第一信号,以及至少根据所述第一信号在第二频率发送第二信息。由此,能够实现低成本设备与网络设备之间准确可靠的信息收发,可以有效降低终端设备的复杂度和成本。
第五方面的实施例
本申请实施例还提供一种通信系统,可以参考图1至图3,与第一至四方面的实施例相同的内容不再赘述。
在一些实施例中,通信系统100至少可以包括:
网络设备,其在第一频率发送第一信号,所述第一信号至少用于终端设备进行定时和/或时间同步;在第二频率接收第二信息;
终端设备,其在所述第一频率接收所述第一信号,至少根据所述第一信号在所述第二频率发送所述第二信息;所述第二信息承载于为所述终端设备通过反向散射第一波形形成的第二信号或者为所述终端设备自主生成的第三信号。
本申请实施例还提供一种终端设备,但本申请不限于此,还可以是其他的设备。
图12是本申请实施例的终端设备的示意图。如图12所示,该终端设备1200可以包括处理器1210和存储器1220;例如存储器1220存储有数据和程序,并耦合到处理器1210。值得注意的是,该图是示例性的;还可以使用其他类型的结构,来补充或代替该结构,以实现电信功能或其他功能。
例如,处理器1210可以被配置为执行程序而实现如第一方面的实施例所述的信息发送方法。例如处理器1210可以被配置为进行如下的控制:在第一频率接收第一信号,所述第一信号至少用于所述终端设备进行定时和/或时间同步;至少根据所述第一信号在第二频率发送第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
如图12所示,该终端设备1200还可以包括:通信模块1230;此外可以具有电源,也可以不具有电源。值得注意的是,终端设备1200也并不是必须要包括图12中所示的所有部件,上述部件并不是必需的;此外,终端设备1200还可以包括图12中没有示出的部件,可以参考现有技术。
本申请实施例还提供一种网络设备,例如可以是基站,但本申请不限于此,还可以是其他的网络设备。
图13是本申请实施例的网络设备的构成示意图。如图13所示,网络设备1300可以包括:处理器1310(例如中央处理器CPU)和存储器1320;存储器1320耦合到处理器1310。其中该存储器1320可存储各种数据;此外还存储信息处理的程序1330,并且在处理器1310的控制下执行该程序1330。
例如,处理器1310可以被配置为执行程序而实现如第二方面的实施例所述的信息接收方法。例如处理器1310可以被配置为进行如下的控制:在第一频率发送第一信号,所 述第一信号至少用于终端设备进行定时和/或时间同步;在第二频率接收第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
此外,如图13所示,网络设备1300还可以包括:收发机1340和天线1350等;其中,上述部件的功能与现有技术类似,此处不再赘述。值得注意的是,网络设备1300也并不是必须要包括图13中所示的所有部件;此外,网络设备1300还可以包括图13中没有示出的部件,可以参考现有技术。
本申请实施例还提供一种计算机程序,其中当在终端设备中执行所述程序时,所述程序使得所述终端设备执行第一方面的实施例所述的信息发送方法。
本申请实施例还提供一种存储有计算机程序的存储介质,其中所述计算机程序使得终端设备执行第一方面的实施例所述的信息发送方法。
本申请实施例还提供一种计算机程序,其中当在网络设备中执行所述程序时,所述程序使得所述网络设备执行第二方面的实施例所述的信息接收方法。
本申请实施例还提供一种存储有计算机程序的存储介质,其中所述计算机程序使得网络设备执行第二方面的实施例所述的信息接收方法。
本申请以上的装置和方法可以由硬件实现,也可以由硬件结合软件实现。本申请涉及这样的计算机可读程序,当该程序被逻辑部件所执行时,能够使该逻辑部件实现上文所述的装置或构成部件,或使该逻辑部件实现上文所述的各种方法或步骤。本申请还涉及用于存储以上程序的存储介质,如硬盘、磁盘、光盘、DVD、flash存储器等。
结合本申请实施例描述的方法/装置可直接体现为硬件、由处理器执行的软件模块或二者组合。例如,图中所示的功能框图中的一个或多个和/或功能框图的一个或多个组合,既可以对应于计算机程序流程的各个软件模块,亦可以对应于各个硬件模块。这些软件模块,可以分别对应于图中所示的各个步骤。这些硬件模块例如可利用现场可编程门阵列(FPGA)将这些软件模块固化而实现。
软件模块可以位于RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、移动磁盘、CD-ROM或者本领域已知的任何其它形式的存储介质。可以将一种存储介质耦接至处理器,从而使处理器能够从该存储介质读取信息,且可向该存储介质写入信息;或者该存储介质可以是处理器的组成部分。处理器和存储介质可以位于ASIC中。该软件模块可以存储在移动终端的存储器中,也可以存储在可插入移动终端的存储卡中。例如,若设备(如移动终端)采用的是较大容量的MEGA-SIM 卡或者大容量的闪存装置,则该软件模块可存储在该MEGA-SIM卡或者大容量的闪存装置中。
针对附图中描述的功能方框中的一个或多个和/或功能方框的一个或多个组合,可以实现为用于执行本申请所描述功能的通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其它可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件或者其任意适当组合。针对附图描述的功能方框中的一个或多个和/或功能方框的一个或多个组合,还可以实现为计算设备的组合,例如,DSP和微处理器的组合、多个微处理器、与DSP通信结合的一个或多个微处理器或者任何其它这种配置。
以上结合具体的实施方式对本申请进行了描述,但本领域技术人员应该清楚,这些描述都是示例性的,并不是对本申请保护范围的限制。本领域技术人员可以根据本申请的精神和原理对本申请做出各种变型和修改,这些变型和修改也在本申请的范围内。
关于包括以上实施例的实施方式,还公开下述的附记:
1.一种信息发送方法,包括:
终端设备在第一频率接收第一信号,所述第一信号至少用于所述终端设备进行定时和/或时间同步;
所述终端设备至少根据所述第一信号在第二频率发送第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
2.一种信息接收方法,包括:
网络设备在第一频率发送第一信号,所述第一信号至少用于终端设备进行定时和/或时间同步;
所述网络设备在第二频率接收第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
3.一种终端设备,包括存储器和处理器,所述存储器存储有计算机程序,所述处理器被配置为执行所述计算机程序而实现如附记1所述的信息发送方法。
4.一种网络设备,包括存储器和处理器,所述存储器存储有计算机程序,所述处理器被配置为执行所述计算机程序而实现如附记2所述的信息发送方法。
5.一种计算机程序产品,至少包含有计算机程序,所述计算机程序被处理器执行时使得终端设备执行如附记1所述的信息接收方法。
6.一种计算机程序产品,至少包含有计算机程序,所述计算机程序被处理器执行时使得网络设备执行如附记2所述的信息接收方法。

Claims (20)

  1. 一种信息发送装置,包括:
    接收单元,其在第一频率接收第一信号,所述第一信号至少用于终端设备进行定时和/或时间同步;
    发送单元,其至少根据所述第一信号在第二频率发送第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
  2. 根据权利要求1所述的装置,其中,所述第二信息用于如下至少之一:
    所述终端设备响应/回复所述第一信号;
    网络设备识别所述终端设备;
    所述终端设备请求接入所述网络设备和/或所述网络设备对应的小区和/或所述网络设备所在的网络;
    所述终端设备请求与所述网络设备和/或所述网络设备对应的小区和/或所述网络设备所在的网络建立第一连接;
    所述终端设备请求与所述网络设备和/或所述网络设备对应的小区和/或所述网络设备所在的网络恢复第一连接;
    所述终端设备请求重新接入所述网络设备;
    所述终端设备请求与所述网络设备和/或所述网络设备所在的网络恢复通信/对话/命令进程;
    所述终端设备请求上行数据发送;
    所述终端设备获取第二标识。
  3. 根据权利要求1所述的装置,其中,所述第一信号承载以下信息至少之一:
    第一标识,所述第一标识为网络设备标识和/或网络设备对应的小区标识;
    终端设备选择信息,所述终端设备选择信息至少用于所述终端设备确定是否发送所述第二信息;
    与所述第二信息发送相关的信息,与所述第二信息发送相关的信息至少用于所述终端设备确定所述第二信息的时域资源位置。
  4. 根据权利要求1所述的装置,其中,通过所述第一信号进行与网络设备的定时/ 时间同步,包括以下至少之一:
    确定来自网络设备信号的符号长度和/或起始点和/或结束点;
    确定来自网络设备信号的时间单位的长度和/或起始点和/或结束点;
    确定来自网络设备信号的长度和/或起始点和/或结束点;
    确定用于接收信号的采样时钟和/或采样起始位置和/或采样频率和/或采样结束位置;
    确定发送信号的符号长度和/或起始点和/或结束点;
    确定应用于发送信号的时间单位的长度和/或起始点和/或结束点;
    确定发送信号的起始/长度/结束。
  5. 根据权利要求1所述的装置,其中,所述第一频率和所述第二频率同频;
    所述同频包括中心频点相同,或者,中心频点不同但频带范围交叠,或者,在同一个信道和/或带宽内且彼此交叠,或者额,在同一个信道和/或带宽内但彼此不交叠。
  6. 根据权利要求1所述的装置,其中,所述第一频率和所述第二频率异频;
    所述异频包括中心频点不同但频带范围交叠,或者,中心频点不同且频带范围不交叠,或者,不在同一个信道和/或带宽内。
  7. 根据权利要求1所述的装置,其中,所述第二信息包含以下信息的至少之一:
    用于标识所述终端设备的第二识别信息;
    用于表示所述第二信息的目的的信息。
  8. 根据权利要求7所述的装置,其中,所述第二识别信息用于在一个范围内和/或一段时间内标识所述终端设备。
  9. 根据权利要求8所述的装置,其中,所述第二识别信息为所述终端设备的固有标识,或者,为所述终端设备自行生成或选择的序列或标识,或者为网络设备为所述终端设备配置/分配/指定的标识。
  10. 根据权利要求7所述的装置,其中,所述接收单元还用于接收来自网络设备的第三信息,所述第三信息至少用于承载第二标识。
  11. 根据权利要求10所述的装置,其中,所述第二标识为所述网络设备为所述终端设备分配/指定的标识,和/或,为所述网络设备确定的所述终端设备的标识。
  12. 根据权利要求10所述的装置,其中,所述第二识别信息为L比特,和/或,所述第二标识为S比特。
  13. 根据权利要求10所述的装置,其中,所述第三信息还承载用于所述终端设备确 认第二识别信息的信息。
  14. 根据权利要求10所述的装置,其中,所述第三信息显式地包含所述第二识别信息的部分或全部,或者,用于承载所述第三信息的第三信号隐式地承载所述第二识别信息的部分或全部。
  15. 根据权利要求10所述的装置,其中,所述第二识别信息与所述第二标识至少部分相同。
  16. 根据权利要求10所述的装置,其中,所述第二识别信息与所述第二标识不同。
  17. 根据权利要求10所述的装置,其中,所述发送单元还用于向所述网络设备发送第四信息,所述第四信息至少用于响应所述第三信息。
  18. 根据权利要求17所述的装置,其中,所述第四信息至少用于通知所述终端设备所述第三信息被正确接收。
  19. 一种信息接收装置,包括:
    发送单元,其在第一频率发送第一信号,所述第一信号至少用于终端设备进行定时和/或时间同步;
    接收单元,其在第二频率接收第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
  20. 一种通信系统,包括:
    网络设备,其在第一频率发送第一信号,所述第一信号至少用于终端设备进行定时和/或时间同步;并在第二频率接收第二信息;
    终端设备,其在所述第一频率接收所述第一信号,以及至少根据所述第一信号在所述第二频率发送所述第二信息,所述第二信息承载于所述终端设备通过反向散射第一波形形成的第二信号或者承载于所述终端设备自主生成的第三信号。
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CN107734672A (zh) * 2016-08-12 2018-02-23 华为技术有限公司 一种通信接入的方法和设备
US20210014903A1 (en) * 2018-04-04 2021-01-14 Zte Corporation Method and apparatus for performing multiple rach procedures
US20220038240A1 (en) * 2020-07-30 2022-02-03 Qualcomm Incorporated Frequency configuration for control resource set in non-terrestrial networks
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CN107734672A (zh) * 2016-08-12 2018-02-23 华为技术有限公司 一种通信接入的方法和设备
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