WO2022028480A1 - Procédé de transmission d'informations, appareil de transmission d'informations, terminal et dispositif côté réseau - Google Patents

Procédé de transmission d'informations, appareil de transmission d'informations, terminal et dispositif côté réseau Download PDF

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Publication number
WO2022028480A1
WO2022028480A1 PCT/CN2021/110542 CN2021110542W WO2022028480A1 WO 2022028480 A1 WO2022028480 A1 WO 2022028480A1 CN 2021110542 W CN2021110542 W CN 2021110542W WO 2022028480 A1 WO2022028480 A1 WO 2022028480A1
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WO
WIPO (PCT)
Prior art keywords
terminal
ffp
offset
signal
uplink signal
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PCT/CN2021/110542
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English (en)
Chinese (zh)
Inventor
姜蕾
李�根
潘学明
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维沃移动通信有限公司
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Publication of WO2022028480A1 publication Critical patent/WO2022028480A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/02—Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks
    • H04W8/08—Mobility data transfer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0215—Traffic management, e.g. flow control or congestion control based on user or device properties, e.g. MTC-capable devices
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0226—Traffic management, e.g. flow control or congestion control based on location or mobility
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/06—Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA

Definitions

  • the present application belongs to the field of communication technologies, and specifically relates to an information transmission method, an information transmission apparatus, a terminal, and a network side device.
  • Frame-based equipment refers to a device whose sending or receiving timing adopts a periodic structure, and its period is a fixed frame period (Fixed Frame Period, FFP).
  • FFP Fixed Frame Period
  • the FBE node occupies the channel using the channel access mechanism based on Listen Before Talk (LBT). If it is determined to be idle, the initiating node can send immediately, otherwise the initiating node is not allowed to send within the next FFP duration. However, when the terminal is at the starting position of the FFP, it may not yet have the transmission conditions, which will result in that the communication performance of the terminal during the FFP duration cannot be guaranteed.
  • LBT Listen Before Talk
  • the purpose of the embodiments of the present application is to provide an information transmission method, an information transmission device, a terminal and a network side device, which can solve the problem that the communication performance of the terminal in the FFP duration cannot be guaranteed because the terminal does not have the transmission conditions at the starting position of the FFP. The problem.
  • an information transmission method applied to a terminal, including:
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network side device.
  • the offset is the interval between the FFP start position of the terminal and the start time of sending the first uplink signal.
  • an information transmission device comprising:
  • a sending module configured to send a signal at the starting position of the fixed frame period FFP of the terminal, and the length of the signal is less than or equal to the length of the offset;
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network side device.
  • the offset is the interval between the FFP start position of the terminal and the start time of sending the first uplink signal.
  • an information transmission method is provided, applied to a network side device, including:
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network side device.
  • the offset is the interval between the FFP start position of the terminal and the start time of sending the first uplink signal.
  • an information transmission device comprising:
  • a receiving module configured to receive the first signal among the signals sent by the terminal, where the signal is the terminal in its fixed frame when the length of the offset is greater than or equal to one OFDM symbol of the orthogonal frequency division multiplexing technique Sent from the starting position of the periodic FFP, the length of the signal is less than or equal to the length of the offset;
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network side device.
  • the offset is the interval between the FFP start position of the terminal and the start time of sending the first uplink signal.
  • a terminal in a fifth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, when the program or instruction is executed by the processor.
  • a network side device in a sixth aspect, includes a processor, a memory, and a program or instruction stored on the memory and executable on the processor, the program or instruction being executed by the The processor implements the steps of the method as described in the third aspect when executed.
  • a readable storage medium is provided, and a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect, or the The steps of the method described in the third aspect.
  • a chip in an eighth aspect, includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is used to run a network-side device program or instruction, and implements the method described in the first aspect. the method described above, or implement the method described in the third aspect.
  • a computer software product is provided, the computer software product is stored in a non-volatile storage medium, the software product is configured to be executed by at least one processor to implement the first aspect The steps of the method, or the steps of implementing the method according to the third aspect.
  • a communication device configured to perform the method of the first aspect, or to perform the method of the third aspect.
  • the terminal when there is an offset between the FFP start position of the terminal and the FFP start position of the network-side device or the start time of sending the first uplink signal, the terminal may send at the start position of the FFP except for A suitable signal other than the scheduled or configured uplink information enables the terminal to send immediately at the starting position of the FFP, so that the terminal can communicate normally during the FFP duration, and the communication performance of the terminal during the FFP duration is ensured.
  • FIG. 1 is a block diagram of a wireless communication system to which an embodiment of the present application can be applied;
  • 3 to 4 are exemplary diagrams of an information transmission method provided by an embodiment of the present application.
  • FIG. 5 is a structural diagram of an information transmission device provided by an embodiment of the present application.
  • FIG. 6 is a flowchart of an information transmission method provided by an embodiment of the present application.
  • FIG. 7 is a structural diagram of an information transmission device provided by an embodiment of the present application.
  • FIG. 8 is a structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 9 is a hardware structure diagram of a network side device provided by an embodiment of the present application.
  • FIG. 10 is a hardware structure diagram of a terminal provided by an embodiment of the present application.
  • first, second and the like in the description and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances so that the embodiments of the present application can be practiced in sequences other than those illustrated or described herein, and "first”, “second” distinguishes Usually it is a class, and the number of objects is not limited.
  • the first object may be one or multiple.
  • “and/or” in the description and claims indicates at least one of the connected objects, and the character “/" generally indicates that the associated objects are in an "or” relationship.
  • LTE Long Term Evolution
  • LTE-Advanced LTE-Advanced
  • LTE-A Long Term Evolution
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Access
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency Division Multiple Access
  • SC-FDMA Single-carrier Frequency-Division Multiple Access
  • system and “network” in the embodiments of the present application are often used interchangeably, and the described technology can be used not only for the above-mentioned systems and radio technologies, but also for other systems and radio technologies.
  • NR New Radio
  • NR terminology is used in most of the following description, although these techniques are also applicable to applications other than NR system applications, such as 6th generation ( 6th Generation, 6G) communication system.
  • FIG. 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied.
  • the wireless communication system includes a terminal 11 and a network-side device 12 .
  • the terminal 11 may also be called a terminal device or a user terminal (User Equipment, UE), and the terminal 11 may be a mobile phone, a tablet computer (Tablet Personal Computer), a laptop computer (Laptop Computer) or a notebook computer, a personal digital computer Assistant (Personal Digital Assistant, PDA), handheld computer, netbook, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), mobile Internet device (Mobile Internet Device, MID), wearable device (Wearable Device) or vehicle-mounted device (Vehicle user equipment, VUE), pedestrian terminal (pedestrian user equipment, PUE) and other terminal-side equipment, wearable devices include: bracelets, headphones, glasses, etc.
  • the network side device 12 may be a base station or a core network, wherein the base station may be referred to as a Node B, an evolved Node B, an access point, a Base Transceiver Station (BTS), a radio base station, a radio transceiver, a basic service Set (Basic Service Set, BSS), Extended Service Set (Extended Service Set, ESS), Node B, Evolved Node B (evolved Node B, eNB), Home Node B, Home Evolved Node B, Wireless Local Area Network (wireless local area network) area network, WLAN) access point, wireless fidelity (WiFi) node, Transmitting Receiving Point (TRP) or some other appropriate term in the field, as long as the same technical effect is achieved, all
  • the base station described above is not limited to specific technical vocabulary. It should be noted that, in the embodiments of the present application, only the base station in the NR system
  • FIG. 2 is a flowchart of an information transmission method provided by an embodiment of the present application. As shown in FIG. 2 , the information transmission method, applied to a terminal, includes the following steps:
  • Step 201 Send a signal at the starting position of the FFP of the terminal, and the length of the signal is less than or equal to the length of the offset; wherein, the offset is the starting position of the FFP of the terminal and the FFP of the network side device interval between start positions; or, the offset is the interval between the FFP start position of the terminal and the moment when the first uplink signal starts to be sent.
  • the signal sent by the terminal at the starting position of the FFP may be understood as an uplink signal.
  • the terminal may send an appropriate signal or a specific signal at the starting position of the FFP.
  • the embodiments of the present application may collectively refer to the signals sent by the terminal at the starting position of the FFP. for a specific signal.
  • the specific signal may include a cyclic prefix extension (Cyclic Prefix extension, CPE), a reference signal for channel sounding (Sounding Reference Signal, SRS), a demodulation reference signal (Demodulation Reference Signal, DMRS) and a physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) at least one.
  • CPE Cyclic Prefix extension
  • SRS Sounding Reference Signal
  • DMRS Demodulation Reference Signal
  • PUSCH Physical Uplink Shared Channel
  • the network-side device may receive the first signal among the signals sent by the terminal at the starting position of its FFP, such as SRS, DMRS, or PUSCH.
  • FFP such as SRS, DMRS, or PUSCH.
  • the length of the above offset may be predefined by the protocol, may also be configured by the network side device, or may be a value generated randomly.
  • the interval between the FFP start position of the terminal and the FFP start position of the network-side device can be called the first offset
  • the FFP start position of the terminal and the FFP start position of the network side device can be called the first offset
  • the interval between the times when the first uplink signal starts to transmit is called the second offset.
  • the length of the specific signal sent by the terminal can be determined by the offset, and its length can be equal to the length of the offset, that is, the specific signal can fill the gap between the FFP start position of the terminal and the FFP start position of the network side device.
  • the entire interval, or the entire interval between the start position of the FFP of the terminal and the start of sending the first uplink signal, is filled, so that the terminal performs continuous transmission within the length of the offset.
  • the length of the specific signal sent by the terminal can also be smaller than the length of the offset, that is, the specific signal can fill a part of the interval between the FFP start position of the terminal and the FFP start position of the network side device, or fill the FFP of the terminal Partial interval between the start position and the start of sending the first uplink signal, so that within the length of the offset, the terminal starts to transmit from the start position of the FFP, and the transmission length is less than the offset. That is, there is a time interval between the transmission of the terminal within the offset and the transmission starting from the FFP start position of the network side device or the transmission of the first uplink signal.
  • the terminal does not need to perform additional CCA. If the time interval between adjacent transmissions of these transmissions exceeds, for example, 16 ⁇ s, the terminal may perform additional CCA before continuing the transmission, and continue the transmission only when the CCA determines that the channel is idle. The time interval between all adjacent transmissions is included in the length of the Channel Occupancy Time (COT).
  • COT Channel Occupancy Time
  • COT is defined as: within a certain FFP duration that has started to transmit, the corresponding initiating node (for example, the terminal in the embodiment of the present application) can transmit without re-estimating the availability of the channel.
  • the duration of COT cannot exceed, for example, 95% of the length of FFP, and an idle period (Idle Period) follows COT, and the idle period lasts until the start time of the next Fixed Frame Period, so that the length of the idle period is at least the length of FFP.
  • Idle Period an idle period
  • the idle period lasts until the start time of the next Fixed Frame Period, so that the length of the idle period is at least the length of FFP.
  • 5% of and its minimum value may be, for example, 100 ⁇ s.
  • the initiating node may also authorize one or more associated responding nodes to transmit the use rights of the designated channels for certain periods of time within the COT. If the responding node initiates transmission after a maximum interval of 16 ⁇ s after the end of the last authorized transmission indicated by the initiating node, it does not need to perform CCA before transmission; otherwise, the responding node may perform CCA before the authorized transmission period begins, if the channel is determined to be If the channel is busy, the authorization can be abandoned. If the channel is judged to be idle, the transmission can be started on the specified channel, which can occupy the remaining part of the COT within the current FFP duration at most. Within the time range of the remaining part, the responding node can also start multiple times. For transmission, as long as the time interval between adjacent transmissions does not exceed, for example, 16 ⁇ s, the responding node can give up this authorization after the transmission is completed.
  • the terminal when there is an offset between the FFP start position of the terminal and the FFP start position of the network-side device or the start time of sending the first uplink signal, the terminal may send at the start position of the FFP, except for scheduling Or a suitable signal other than the configured uplink information, so that the terminal can send immediately at the starting position of the FFP, so that the terminal can communicate normally during the FFP duration, and the communication performance of the terminal during the FFP duration is ensured.
  • the FFP start position of the terminal is earlier than the FFP start position of the network side device.
  • the FFP of the terminal Since the starting position of the FFP of the terminal is earlier than the starting position of the FFP of the device on the network side, the FFP of the terminal is earlier than the FFP of the device on the network side.
  • the terminal can send a specific signal within this advanced time, so that the terminal can send immediately at the starting position of the FFP, so that the terminal can communicate normally during the FFP duration, ensuring that the terminal can communicate with the FFP during the FFP duration. communication performance.
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network-side device
  • the offset is less than or equal to the network-side device's FFP start position. The length of the idle period of the FFP.
  • the period during which the terminal performs CCA can be set to be staggered from the COT period of the FFP of the network side device, or in other words, the period during which the terminal performs CCA is set to the network side equipment.
  • the idle period of the FFP is set to be staggered from the COT period of the FFP of the network side device, or in other words, the period during which the terminal performs CCA is set to the network side equipment.
  • the terminal does not expect the first offset to be greater than the length of the idle period of the FFP of the network-side device. Otherwise, the period during which the terminal performs CCA will fall into the COT period of the FFP of the network-side equipment, which will cause the terminal to perform CCA due to The network side device occupies the channel and cannot grab the channel.
  • setting the first offset to be less than or equal to the length of the idle period of the FFP of the network-side device can prevent the transmission of the network-side device in the previous FFP from affecting the CCA detection of the terminal, which is beneficial to When the terminal performs CCA, the channel can be successfully grabbed, thereby improving the communication performance of the terminal.
  • the FFP length of the terminal is the same as the FFP start position of the network side device.
  • the lengths are equal or multiple.
  • the FFP period (ie, the FFP length) of the terminal may reuse the FFP period of the network-side equipment, or a new FFP period may be configured for the terminal, and the new FFP period may be the same as the FFP period of the network-side equipment.
  • the new FFP period may be twice the FFP period of the network side device, or the FFP period of the network side device may be twice the new FFP period, and so on.
  • the FFP start position of the terminal is earlier than the start time of sending the first uplink signal.
  • the FFP start position of the terminal is earlier than the start time of sending the first uplink signal
  • the FFP start position of the terminal is earlier than the configured start time of uplink transmission, that is, the second offset is greater than 0 .
  • the terminal can fill in a specific signal, such as CPE, SRS, DMRS or a combination thereof, before the first uplink signal according to the pre-defined protocol or the configuration of the network side device, and the length of the specific signal filled by the terminal before the first uplink signal can be less than or equal to Second offset.
  • the uplink signals sent by the terminal within the FFP duration are the specific signal and the first uplink signal.
  • the terminal After the terminal sends the specific signal, it can send the first uplink signal at the moment when the first uplink signal starts to be sent, and the moment when the first uplink signal starts to be sent can be configured or scheduled by the network side device.
  • the terminal can send immediately at the starting position of the FFP, so that the terminal can perform normal communication during the FFP duration, and it is ensured that the terminal can communicate with the FFP during the FFP duration. communication performance.
  • the method further includes:
  • the channel occupation time COT is initialized.
  • the terminal can determine whether to initialize the COT according to the magnitude relationship between the second offset and the first threshold.
  • the terminal can initialize the COT.
  • the terminal can initialize the COT.
  • the terminal may not initialize the COT.
  • the terminal may choose not to initialize the COT by itself, but may choose to share the COT initialized by the network side device.
  • the above-mentioned first threshold may be configured by the network-side device, or may be stipulated by a protocol.
  • the terminal initializes the COT only when the second offset is less than or equal to the first threshold. In this way, the terminal can avoid sending too many unnecessary uplink signals when the second offset is large, so that the Improve the communication performance of the entire system.
  • the FFP start position of the terminal coincides with the start time of sending the first uplink signal, that is, the second offset is 0, then the terminal can directly send the first uplink signal at the FFP start position, and the terminal can Before sending the first uplink signal, the COT is initialized.
  • the start sending time of the first uplink signal is: the start sending time of the valid uplink signal, or the start sending time of the second uplink signal filled before the valid uplink signal, and the valid uplink signal is the The uplink signal configured or scheduled by the network side device.
  • the first uplink signal may be a valid uplink signal, or may include a valid uplink signal and a second uplink signal filled before the valid uplink signal, and the valid uplink signal may include, for example, PUSCH, a physical uplink control channel (Physical Uplink Control Channel, PUCCH), SRS, etc.
  • PUCCH Physical Uplink Control Channel
  • the length of the second uplink signal is predefined by a protocol or configured by the network side device.
  • the second uplink signal includes at least one of CPE, SRS and DMRS.
  • the type of the signal is predefined by a protocol or configured by the network side device; or,
  • the type of the signal is determined by the length of the offset.
  • the type of the specific signal may be predefined by the protocol, may also be configured by the network side device, and may also be determined by the length of the offset.
  • the type of the signal is CPE.
  • the type of the signal includes at least one of a third uplink signal and a CPE, and the third uplink signal may include SRS, DMRS, and PUSCH. at least one of.
  • the type of the specific signal is CPE; if the length of the offset is equal to one OS, the type of the specific signal can be at least one of SRS, DMRS, PUSCH; if The length of the offset is greater than one OS, and the type of the specific signal may be at least one of SRS, DMRS, PUSCH, and CPE.
  • the offset is (N*OFDM symbol length+X) ⁇ s
  • the third uplink signal is sent on N OSs, and the CPE of X ⁇ s is filled.
  • the type of the specific signal does not include CPE.
  • the network-side device when the length of the offset is greater than or equal to one OS, the network-side device can receive the above-mentioned third uplink signal sent by the terminal, where the third uplink signal is equivalent to the aforementioned third uplink signal.
  • a signal such as SRS, DMRS or PUSCH, etc.
  • the FFP of the terminal is prior to the FFP of the network-side device, and the first offset of the starting positions of the two FFPs is less than one OS (ie, partial OFDM symbols, partial OS), and the FFP starting position of the network-side device is Align with slot edge (boundary).
  • the terminal initializes the COT by itself, the CPE can be filled in the first offset.
  • the terminal starts transmission after detecting that the channel is empty before its own FFP1, sends the CPE in the partial OS before the slot boundary, and then starts upstream transmission from the slot boundary.
  • the network-side device detects that the channel is busy when CCA is performed before its own FFP1, it abandons the transmission in the FFP1.
  • the terminal has no information to transmit in its own FFP2, and the network side device performs CCA before its own FFP2, detects that the channel is empty, and starts downlink transmission.
  • the second offset is equal to the first offset, and the second offset is less than an OS.
  • Protocol pre-definition or network-side device configuration when the second offset is less than or equal to 1 OS (here, it can be understood that the first threshold is 1 OS), the terminal may initialize the COT. At this point, the FFP satisfies the condition and fills the CPE within the second offset. Specifically, the terminal starts transmission after detecting that the channel is empty before its own FFP1, sends the CPE in the partial OS before the slot boundary, and then starts upstream transmission from the slot boundary.
  • the network-side device When the network-side device detects that the channel is busy when CCA is performed before its own FFP1, it abandons the transmission in the FFP1.
  • the terminal has no information to transmit in its own FFP2, and the network side device performs CCA before its own FFP2, detects that the channel is empty, and starts downlink transmission.
  • the offset of the FFP start position of the network side device and the terminal may be at least the length of one CCA, for example, 9us, and may not exceed one OS at most, or may be any value in between.
  • the network-side device can configure the offset for the terminal through Radio Resource Control (RRC) signaling.
  • RRC Radio Resource Control
  • the terminal may send SRS, DMRS or PUSCH on these symbols.
  • the terminal in the initial partial OS can send the CPE, and in the remaining integer OS, the terminal can send uplink signals such as SRS, DMRS, and PUSCH according to the configuration.
  • the network side device can detect uplink signals such as SRS, DMRS, or PUSCH on the corresponding OS. If the network-side device detects these uplink signals, the network-side device may abandon the downlink transmission. If the network-side device does not detect these uplink signals, the network-side device can perform CCA, and when the network-side device detects that the channel is empty, the network-side device can perform downlink transmission.
  • the second offset is equal to the first offset, and the second offset is greater than or equal to an OS.
  • Protocol pre-definition or network-side device configuration when the second offset is less than or equal to 3 OSs (here, it can be understood that the first threshold is 3 OSs), the terminal can initialize the COT. In Fig. 4, the second offset is equal to 1 OS, and the FFP satisfies the condition at this time, and the terminal can send SRS, DMRS or PUSCH on this OS.
  • the terminal in the initial partial OS can send the CPE, and in the remaining integer OS, the terminal can send uplink signals such as SRS, DMRS, and PUSCH according to the configuration.
  • the network side device can detect uplink signals such as SRS, DMRS, or PUSCH on the corresponding OS. If the network-side device detects these uplink signals, the network-side device may abandon the downlink transmission. If the network-side device does not detect these uplink signals, the network-side device can perform CCA, and when the network-side device detects that the channel is empty, the network-side device can perform downlink transmission.
  • the terminal when there is an offset between the FFP start position of the terminal and the FFP start position of the network-side device or the start time of sending the first uplink signal, the terminal may send at the start position of the FFP except for A suitable signal other than the scheduled or configured uplink information enables the terminal to send immediately at the starting position of the FFP, so that the terminal can communicate normally during the FFP duration, and the communication performance of the terminal during the FFP duration is ensured.
  • the execution body may be an information transmission apparatus, or a control module in the information transmission apparatus for executing the information transmission method.
  • the information transmission device provided by the embodiment of the present application is described by taking the information transmission method performed by the information transmission device as an example.
  • FIG. 5 is a structural diagram of an information transmission apparatus provided by an embodiment of the present application. As shown in FIG. 5 , the information transmission apparatus 300 includes:
  • a sending module 301 configured to send a signal at the starting position of the fixed frame period FFP of the terminal, and the length of the signal is less than or equal to the length of the offset;
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network side device.
  • the offset is the interval between the FFP start position of the terminal and the start time of sending the first uplink signal.
  • the FFP start position of the terminal is earlier than the FFP start position of the network side device.
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network-side device
  • the offset is less than or equal to the network-side device's FFP start position. The length of the idle period of the FFP.
  • the FFP length of the terminal is the same as the FFP start position of the network side device.
  • the lengths are equal or multiple.
  • the FFP start position of the terminal is earlier than the start time of sending the first uplink signal.
  • the start sending time of the first uplink signal is: the start sending time of the valid uplink signal, or the start sending time of the second uplink signal filled before the valid uplink signal
  • the valid uplink signal is: The uplink signal configured or scheduled by the network side device.
  • the length of the second uplink signal is predefined by a protocol or configured by the network side device.
  • the second uplink signal includes at least one of cyclic prefix extension CPE, channel sounding reference signal SRS and demodulation reference signal DMRS.
  • the type of the signal is predefined by a protocol or configured by the network side device; or,
  • the type of the signal is determined by the length of the offset.
  • the type of the signal is CPE.
  • the type of the signal includes at least one of a third uplink signal and a CPE, and the third uplink signal includes SRS, DMRS, and physical At least one of the uplink shared channel PUSCH.
  • the length of the offset is predefined by a protocol or configured by the network side device or randomly generated.
  • the information transmission apparatus 300 further includes:
  • an initialization module configured to, in the case that the offset is the interval between the FFP start position of the terminal and the moment when the first uplink signal starts to be sent, when the offset is less than or equal to a first threshold , initialize the channel occupation time COT.
  • the information transmission device in this embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal.
  • the device may be a mobile terminal or a non-mobile terminal.
  • the mobile terminal may include, but is not limited to, the types of terminals 11 listed above, and the non-mobile terminal may be a server, a network attached storage (NAS), a personal computer (personal computer, PC), a television ( television, TV), teller machine, or self-service machine, etc., which are not specifically limited in the embodiments of the present application.
  • the information transmission device in the embodiment of the present application may be a device with an operating system.
  • the operating system may be an Android (Android) operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
  • the information transmission apparatus provided by the embodiments of the present application can implement the various processes implemented by the method embodiments in FIG. 2 to FIG. 4 , and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • FIG. 6 is a flowchart of an information transmission method provided by an embodiment of the present application. As shown in FIG. 6 , the information transmission method is applied to a network side device, and the method includes the following steps:
  • Step 401 Receive the first signal among the signals sent by the terminal, and the signal is the case where the length of the offset is greater than or equal to one OFDM symbol of the orthogonal frequency division multiplexing technique, the terminal is in its fixed frame period FFP The length of the signal is less than or equal to the length of the offset;
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network-side device; or the offset is the FFP start position of the terminal and the first FFP start position of the terminal.
  • the interval between the start of transmission of an uplink signal is the interval between the FFP start position of the terminal and the FFP start position of the network-side device.
  • the first signal includes at least one of a channel sounding reference signal SRS, a demodulation reference signal DMRS, and a physical uplink shared channel PUSCH.
  • the start sending time of the first uplink signal is: the start sending time of the valid uplink signal, or the start sending time of the second uplink signal filled before the valid uplink signal, and the valid uplink signal is the The uplink signal configured or scheduled by the network side device.
  • the length of the second uplink signal is predefined by a protocol or configured by the network side device.
  • the second uplink signal includes at least one of cyclic prefix extension CPE, SRS and DMRS.
  • the type of the signal is predefined by a protocol or configured by the network side device; or,
  • the type of the signal is determined by the length of the offset.
  • the type of the signal is CPE.
  • the type of the signal includes at least one of a third uplink signal and a CPE, and the third uplink signal includes SRS, DMRS, and physical At least one of the uplink shared channel PUSCH.
  • the length of the offset is predefined by a protocol or configured by the network side device or randomly generated.
  • the FFP start position of the terminal is earlier than the FFP start position of the network side device.
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network-side device
  • the offset is less than or equal to the network-side device's FFP start position. The length of the idle period of the FFP.
  • the FFP length of the terminal is the same as the FFP start position of the network side device.
  • the lengths are equal or multiple.
  • the FFP start position of the terminal is earlier than the start time of sending the first uplink signal.
  • the method further includes:
  • the terminal when the offset is less than or equal to the first threshold, the terminal initializes the channel occupation time COT; when the offset is greater than the first threshold, the terminal does not ignore the COT to initialize.
  • the execution body may be an information transmission apparatus, or a control module in the information transmission apparatus for executing the information transmission method.
  • the information transmission device provided by the embodiment of the present application is described by taking the information transmission method performed by the information transmission device as an example.
  • FIG. 7 is a structural diagram of an information transmission apparatus provided by an embodiment of the present application. As shown in FIG. 7 , the information transmission apparatus 500 includes:
  • the receiving module 501 is configured to receive a first signal among the signals sent by the terminal, where the length of the offset is greater than or equal to one orthogonal frequency division multiplexing OFDM symbol. Sent at the starting position of the frame period FFP, the length of the signal is less than or equal to the length of the offset;
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network side device.
  • the offset is the interval between the FFP start position of the terminal and the start time of sending the first uplink signal.
  • the first signal includes at least one of a channel sounding reference signal SRS, a demodulation reference signal DMRS, and a physical uplink shared channel PUSCH.
  • the start sending time of the first uplink signal is: the start sending time of the valid uplink signal, or the start sending time of the second uplink signal filled before the valid uplink signal, and the valid uplink signal is the The uplink signal configured or scheduled by the network side device.
  • the length of the second uplink signal is predefined by a protocol or configured by the network side device.
  • the second uplink signal includes at least one of cyclic prefix extension CPE, SRS and DMRS.
  • the type of the signal is predefined by a protocol or configured by the network side device; or,
  • the type of the signal is determined by the length of the offset.
  • the type of the signal is CPE.
  • the type of the signal includes at least one of a third uplink signal and a CPE, and the third uplink signal includes SRS, DMRS, and physical At least one of the uplink shared channel PUSCH.
  • the length of the offset is predefined by a protocol or configured by the network side device or randomly generated.
  • the FFP start position of the terminal is earlier than the FFP start position of the network side device.
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network-side device
  • the offset is less than or equal to the network-side device's FFP start position. The length of the idle period of the FFP.
  • the FFP length of the terminal is the same as the FFP start position of the network side device.
  • the lengths are equal or multiple.
  • the FFP start position of the terminal is earlier than the start time of sending the first uplink signal.
  • the information transmission apparatus 500 further includes:
  • a configuration module configured to configure a first threshold when the offset is the interval between the FFP start position of the terminal and the moment when the first uplink signal starts to be sent;
  • the terminal when the offset is less than or equal to the first threshold, the terminal initializes the channel occupation time COT; when the offset is greater than the first threshold, the terminal does not ignore the COT to initialize.
  • the information transmission apparatus provided in the embodiment of the present application can implement each process implemented by the method embodiment in FIG. 6 and achieve the same technical effect. To avoid repetition, details are not repeated here.
  • an embodiment of the present application further provides a communication device 600, including a processor 601, a memory 602, and a program or instruction stored in the memory 602 and running on the processor 601.
  • a communication device 600 including a processor 601, a memory 602, and a program or instruction stored in the memory 602 and running on the processor 601.
  • the communication When the device 600 is a terminal, when the program or instruction is executed by the processor 601, each process of the above-mentioned embodiments of the information transmission method can be realized, and the same technical effect can be achieved.
  • the communication device 600 is a network-side device, when the program or instruction is executed by the processor 601, each process of the above information transmission method embodiment can be implemented, and the same technical effect can be achieved. To avoid repetition, details are not described here.
  • the network side device 700 includes: an antenna 71 , a radio frequency device 72 , and a baseband device 73 .
  • the antenna 71 is connected to the radio frequency device 72 .
  • the radio frequency device 72 receives information through the antenna 71, and sends the received information to the baseband device 73 for processing.
  • the baseband device 73 processes the information to be sent and sends it to the radio frequency device 72
  • the radio frequency device 72 processes the received information and sends it out through the antenna 71 .
  • the above-mentioned frequency band processing apparatus may be located in the baseband apparatus 73 , and the method performed by the network side device in the above embodiments may be implemented in the baseband apparatus 73 .
  • the baseband apparatus 73 includes a processor 74 and a memory 75 .
  • the baseband device 73 may include, for example, at least one baseband board on which a plurality of chips are arranged. As shown in FIG. 7 , one of the chips is, for example, the processor 74 , which is connected to the memory 75 to call the program in the memory 75 and execute it.
  • the network devices shown in the above method embodiments operate.
  • the baseband device 73 may further include a network interface 76 for exchanging information with the radio frequency device 72, and the interface is, for example, a common public radio interface (CPRI).
  • CPRI common public radio interface
  • the network-side device in this embodiment of the present invention further includes: instructions or programs that are stored in the memory 75 and run on the processor 74, and the processor 74 invokes the instructions or programs in the memory 75 to execute the modules shown in FIG. 6 .
  • FIG. 10 is a schematic diagram of a hardware structure of a terminal implementing an embodiment of the present application.
  • the terminal 1000 includes but is not limited to: a radio frequency unit 1001, a network module 1002, an audio output unit 1003, an input unit 1004, a sensor 1005, a display unit 1006, a user input unit 1007, an interface unit 1008, a memory 1009, a processor 1010 and other components .
  • the terminal 1000 may also include a power supply (such as a battery) for supplying power to various components, and the power supply may be logically connected to the processor 1010 through a power management system, so as to manage charging, discharging, and power consumption through the power management system management and other functions.
  • a power supply such as a battery
  • the terminal structure shown in FIG. 10 does not constitute a limitation on the terminal, and the terminal may include more or less components than shown, or combine some components, or arrange different components, which will not be repeated here.
  • the input unit 1004 may include a graphics processor (Graphics Processing Unit, GPU) 10041 and a microphone 10042. Such as camera) to obtain still pictures or video image data for processing.
  • the display unit 1006 may include a display panel 10061, which may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like.
  • the user input unit 1007 includes a touch panel 10071 and other input devices 10072 .
  • the touch panel 10071 is also called a touch screen.
  • the touch panel 10071 may include two parts, a touch detection device and a touch controller.
  • Other input devices 10072 may include, but are not limited to, physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, and joysticks, which will not be repeated here.
  • the radio frequency unit 1001 receives the downlink data from the network side device, and then processes it to the processor 1010; in addition, sends the uplink data to the network side device.
  • the radio frequency unit 1001 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
  • Memory 1009 may be used to store software programs or instructions as well as various data.
  • the memory 1009 may mainly include a stored program or instruction area and a storage data area, wherein the stored program or instruction area may store an operating system, an application program or instruction required for at least one function (such as a sound playback function, an image playback function, etc.) and the like.
  • the memory 1009 may include a high-speed random access memory, and may also include a non-volatile memory, wherein the non-volatile memory may be a read-only memory (Read-Only Memory, ROM), a programmable read-only memory (Programmable ROM) , PROM), erasable programmable read-only memory (Erasable PROM, EPROM), electrically erasable programmable read-only memory (Electrically EPROM, EEPROM) or flash memory.
  • ROM Read-Only Memory
  • PROM programmable read-only memory
  • PROM erasable programmable read-only memory
  • Erasable PROM Erasable PROM
  • EPROM electrically erasable programmable read-only memory
  • EEPROM electrically erasable programmable read-only memory
  • flash memory for example at least one magnetic disk storage device, flash memory device, or other non-volatile solid state storage device.
  • the processor 1010 may include one or more processing units; optionally, the processor 1010 may integrate an application processor and a modem processor, wherein the application processor mainly processes the operating system, user interface, and application programs or instructions, etc. Modem processors mainly deal with wireless communications, such as baseband processors. It can be understood that, the above-mentioned modulation and demodulation processor may not be integrated into the processor 1010.
  • radio frequency unit 1001 is used for:
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network side device.
  • the offset is the interval between the FFP start position of the terminal and the start time of sending the first uplink signal.
  • the FFP start position of the terminal is earlier than the FFP start position of the network side device.
  • the offset is the interval between the FFP start position of the terminal and the FFP start position of the network-side device
  • the offset is less than or equal to the network-side device's FFP start position. The length of the idle period of the FFP.
  • the FFP length of the terminal is the same as the FFP start position of the network side device.
  • the lengths are equal or multiple.
  • the FFP start position of the terminal is earlier than the start time of sending the first uplink signal.
  • the start sending time of the first uplink signal is: the start sending time of the valid uplink signal, or the start sending time of the second uplink signal filled before the valid uplink signal, and the valid uplink signal is the The uplink signal configured or scheduled by the network side device.
  • the length of the second uplink signal is predefined by a protocol or configured by the network side device.
  • the second uplink signal includes at least one of cyclic prefix extension CPE, channel sounding reference signal SRS and demodulation reference signal DMRS.
  • the type of the signal is predefined by a protocol or configured by the network side device; or,
  • the type of the signal is determined by the length of the offset.
  • the type of the signal is CPE.
  • the type of the signal includes at least one of a third uplink signal and a CPE, and the third uplink signal includes SRS, DMRS, and physical At least one of the uplink shared channel PUSCH.
  • the length of the offset is predefined by a protocol or configured by the network side device or randomly generated.
  • the processor 1010 is configured to:
  • the channel occupation time COT is initialized.
  • the terminal when there is an offset between the FFP start position of the terminal and the FFP start position of the network-side device or the start time of sending the first uplink signal, the terminal may send at the start position of the FFP except for A suitable signal other than the scheduled or configured uplink information enables the terminal to send immediately at the starting position of the FFP, so that the terminal can communicate normally during the FFP duration, and the communication performance of the terminal during the FFP duration is ensured.
  • An embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or instruction is executed by a processor, each process of the foregoing information transmission method embodiment is implemented, or the above-mentioned information transmission method is implemented.
  • the various processes of the embodiments of the information transmission method can achieve the same technical effect, and are not repeated here to avoid repetition.
  • the processor is the processor in the terminal described in the foregoing embodiment.
  • the readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (Read-Only Memory, ROM), a random access memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
  • An embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement the above information transmission method embodiments.
  • the chip includes a processor and a communication interface
  • the communication interface is coupled to the processor
  • the processor is configured to run a program or an instruction to implement the above information transmission method embodiments.
  • the chip mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-a-chip, or the like.
  • the disclosed apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution in this embodiment.
  • each functional unit in each embodiment of the present disclosure may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • modules, units, and subunits can be implemented in one or more Application Specific Integrated Circuits (ASIC), Digital Signal Processor (DSP), Digital Signal Processing Device (DSP Device, DSPD) ), Programmable Logic Device (PLD), Field-Programmable Gate Array (FPGA), general-purpose processor, controller, microcontroller, microprocessor, in other electronic units or combinations thereof.
  • ASIC Application Specific Integrated Circuits
  • DSP Digital Signal Processor
  • DSP Device Digital Signal Processing Device
  • DSPD Digital Signal Processing Device
  • PLD Programmable Logic Device
  • FPGA Field-Programmable Gate Array
  • the technologies described in the embodiments of the present disclosure may be implemented through modules (eg, procedures, functions, etc.) that perform the functions described in the embodiments of the present disclosure.
  • Software codes may be stored in memory and executed by a processor.
  • the memory can be implemented in the processor or external to the processor.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

La présente invention se rapporte au domaine technique des communications. L'invention divulgue un procédé de transmission d'informations, un appareil de transmission d'informations, un terminal et un dispositif côté réseau. Le procédé de transmission d'informations d'un terminal comprend : l'envoi d'un signal à une position de départ FFP d'un terminal, la longueur du signal étant inférieure ou égale à la longueur d'un décalage, le décalage étant un intervalle entre la position de départ FFP du terminal et une position de départ FFP d'un dispositif côté réseau, ou le décalage étant un intervalle entre la position de départ de FFP du terminal et un point de départ d'envoi d'un premier signal montant.
PCT/CN2021/110542 2020-08-04 2021-08-04 Procédé de transmission d'informations, appareil de transmission d'informations, terminal et dispositif côté réseau WO2022028480A1 (fr)

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