CN-122002248-A - Signal transmission method, device, terminal and network side equipment

Abstract

The application discloses a signal transmission method, a device, a terminal and network side equipment, which belong to the technical field of communication, and the signal transmission method in the embodiment of the application comprises the steps that first equipment determines the number of first signals and/or the positions of the first signals in first transmission according to first information, and the first equipment executes the transmission of the first signals according to the number and/or the positions of the first signals; the first information comprises at least one of whether frequency hopping exists in first transmission, whether time interval exists in the first transmission, a repeated transmission mode of a second signal, a type of the second signal, a transmission length of the second signal, a data transmission rate of the second signal, a data size of the second signal, a number of times of repetition of the second signal, resources available for A-IoT transmission, a type of response equipment, a type of read-write equipment, a first indication, wherein the first signal comprises at least one of preamble, midamble and postamble, and the second signal comprises at least one of PDRCH and PRDCH.

Inventors

• WANG DIE
• WANG LIHUI
• LIN ZHIPENG
• WU KAI
• LIU SIQI

Assignees

• 维沃移动通信有限公司

Dates

Publication Date

20260508

Application Date

20241107

Claims (20)

1. 1.A method of signal transmission, comprising: The method comprises the steps that first equipment determines the number of first signals and/or the positions of the first signals in first transmission according to first information, wherein the first transmission comprises transmission from response equipment to read-write equipment D2R and/or transmission from read-write equipment to response equipment R2D, and the first equipment is response equipment or read-write equipment; The first device performs transmission of the first signal according to the number of the first signals and/or the position of the first signals; Wherein the first information includes at least one of: whether frequency hopping exists in the first transmission; Whether a time interval exists in the first transmission; a repeated transmission mode of the second signal; The type of the second signal; a transmission length of the second signal; A data transmission rate of the second signal; a data size of the second signal; The number of repetitions of the second signal; Resources available for environmental internet of things a-IoT transmissions; The type of the answering machine; the type of the read-write equipment; A first indication for indicating the number of first signals in the first transmission and/or the location of the first signals; Wherein the first signal includes at least one of a preamble, a midamble, and an end code postamble; The second signal includes at least one of a physical answering device to read/write device channel PDRCH and a physical reading/writing device to answering device channel PRDCH.
2. 2. The method of claim 1, wherein, in the case where the first transmission is a D2R transmission based on carrier CW reflection, the frequency hopping is that of CW, and/or, In case the first transmission is a D2R transmission, the frequency hopping is a frequency hopping based on a frequency shift of a line code or a square wave, and/or, In the case where the first transmission is a D2R transmission based on an internally generated signal, the frequency hopping is a frequency hopping based on a frequency position change of a baseband signal, or the frequency hopping is a frequency hopping based on a frequency position change of a generated carrier.
3. 3. The method according to claim 1 or 2, wherein the first information comprises whether frequency hopping is present in the first transmission, and wherein the first device determines the number of first signals and/or the location of the first signals in the first transmission based on the first information, comprising at least one of: In the case where there is frequency hopping in the first transmission, the first device determines that the number of first signals in the first transmission is at least one; in the case where there is frequency hopping in the first transmission and the repeat transmission of PDRCH is a repeat transmission at a signal block level, the first device determines that the number of first signals in the first transmission is at least one; in the case that there is no frequency hopping in the first transmission, the first device determines the number of preambles in the first transmission as one; In the case that no frequency hopping exists in the first transmission, the first device determines that the number of preambles and the number postamble in the first transmission are both one; In the case that no frequency hopping exists in the first transmission and the PDRCH repeated transmission is repeated transmission at the signal block level, the first device determines that the data of other repeated transmissions except the first transmission in the first transmission includes a midamble before the data; In the case where there is no frequency hopping in the first transmission and the retransmission of PDRCH is a signal block-level retransmission, the first device determines that the data of the other retransmission except the last transmission in the first transmission includes a midamble transmission.
4. 4. A method according to claim 3, wherein in the case where there is frequency hopping in the first transmission, the first device determines that the number of first signals in the first transmission is at least one, the first device performs the transmission of the first signals according to the number of first signals and/or the location of the first signals, comprising at least one of: the first device transmits a preamble before a group of transmitted data corresponding to each frequency point; The first device transmits a preamble before the first transmitted data; The first device transmits midamble before a group of transmitted data corresponding to each frequency point after the first frequency point; The first device transmits midamble after a group of transmitted data corresponding to each frequency point before the last frequency point; The first device transmits postamble after the last transmitted data; The first device transmits postamble after a set of transmitted data corresponding to each frequency point.
5. 5. A method according to claim 3, wherein in the case where there is frequency hopping in the first transmission and the repeat transmission of PDRCH is a repeat transmission at a signal block level, the first device determines that the number of first signals in the first transmission is at least one, the first device performs the transmission of the first signals according to the number of first signals and/or the location of the first signals, including at least one of: the first device transmits a preamble before data transmitted each time; the first device transmits a preamble before a group of repeatedly transmitted data corresponding to each frequency point; The first device transmits a preamble before the first transmitted data; the first device transmits midamble before a group of repeatedly transmitted data corresponding to each frequency point after a first frequency point; the first device transmits midamble after a group of repeatedly transmitted data corresponding to each frequency point before the last frequency point; The first device transmits postamble after the last transmitted data; The first device transmits postamble after each transmitted data; the first device transmits postamble after a set of repeatedly transmitted data corresponding to each frequency point.
6. 6. The method according to claim 1, wherein the first information comprises whether a time interval exists in the first transmission, and wherein the first device determines the number of first signals and/or the location of the first signals in the first transmission according to the first information, including at least one of: In the case that a time interval exists between two adjacent transmissions in the first transmission or the time interval between two adjacent transmissions meets a first preset threshold, the first device determines that a preamble is included before a second transmission in the two adjacent transmissions; in the case that there is a time interval between two adjacent transmissions in the first transmission or the time interval between two adjacent transmissions meets the first preset threshold, the first device determines that the second transmission in the two adjacent transmissions is preceded by midmable; In the case that there is a time interval between two adjacent transmissions in the first transmission or the time interval between two adjacent transmissions satisfies the first preset threshold, the first device determines that the first transmission in the two adjacent transmissions is followed by postamble; in the case that there is a time interval between two adjacent transmissions in the first transmission or the time interval between two adjacent transmissions satisfies the first preset threshold, the first device determines that the first transmission in the two adjacent transmissions is followed by midmable; in the case that there is no time interval between two adjacent transmissions in the first transmission or the time interval between two adjacent transmissions meets a second preset threshold, the first device determines that the preamble is not included before the second transmission in the two adjacent transmissions; In the case that there is no time interval between two adjacent transmissions in the first transmission or the time interval between two adjacent transmissions meets the second preset threshold, the first device determines that midmable is not included before the second transmission in the two adjacent transmissions; In the case that there is no time interval between two adjacent transmissions in the first transmission or the time interval between two adjacent transmissions satisfies the second preset threshold, the first device determines that postamble is not included after the first transmission in the two adjacent transmissions; in the case that there is no time interval between two adjacent transmissions in the first transmission or the time interval between two adjacent transmissions satisfies the second preset threshold, the first device determines that midmable is not included after the first transmission in the two adjacent transmissions.
7. 7. The method according to claim 1, wherein the first information includes a repeated transmission manner of the second signal, and the first device determines the number of first signals and/or the positions of the first signals in the first transmission according to the first information, including any one of the following: In the case that the repeated transmission mode of the second signal is repeated transmission at the signal block level, the first device determines that the number of first signals in the first transmission is at least one; in the case that the repeated transmission mode of the second signal is repeated transmission at the signal block level, the first device determines that the number of preambles included in the first transmission and the number of postamble are both one; In the case that the retransmission method of the second signal is unused retransmission or retransmission at a bit level, the first device determines that the number of preambles included in the first transmission is one; In the case that the retransmission method of the second signal is unused retransmission or retransmission at a bit level, the first device determines that the number of preambles included in the first transmission and the number of postamble are both one; And in the case that the repeated transmission mode of the second signal is the repeated transmission based on the available resource transmission, the first device determines that the number of the first signals in the first transmission is at least one.
8. 8. The method according to claim 7, wherein in case the repeated transmission of the second signal is repeated at a signal block level, the first device determines that the number of first signals in the first transmission is at least one, the first device performs the transmission of the first signals according to the number of first signals and/or the location of the first signals, comprising at least one of: the first device transmits a preamble before data transmitted each time; The first device transmits a preamble before the first transmitted data; The first device transmits postamble after the last transmitted data; The first device transmits postamble after each transmitted data; The first device transmits midamble before the data transmitted each time after the first transmission; the first device transmits midamble after each transmitted data before the last transmission.
9. 9. The method of claim 1, wherein the resources available for a-IoT transmissions are determined based on resources allocated by a network side device for a-IoT transmissions by a reader/writer device and a responder device.
10. 10. The method according to claim 1, wherein the first information comprises a type of the answering device, and wherein the first device determines the number of first signals in the first transmission and/or the location of the first signals based on the first information, comprising at least one of: in the case that the first device is a first type of response device, the first device determines a transmission including a preamble before data of a first transmission in the first transmission; In the case that the first device is a second type of answering device, the first device determines that the number of first signals in the first transmission is at least one; And under the condition that the first device is a response device and the read-write device which communicates with the first device in an A-IoT communication manner is a network side device, the first device determines that the transmission of the preamble is included before the data transmitted for the first time in the first transmission.
11. 11. The method according to claim 1, wherein the first information comprises a type of the read-write device, and wherein the first device determines the number of first signals and/or the location of the first signals in the first transmission based on the first information, comprising at least one of: in the case that the first device is a first type of read-write device, the first device determines a transmission including a preamble before data transmitted for the first time in the first transmission; In the case that the first device is a second type of read-write device, the first device determines that the number of first signals in the first transmission is at least one; In the case that the first device is a read-write device and the reply device that communicates with the first device for an a-IoT is a reply device of a first type, the first device determines that a transmission including a preamble precedes data of a first transmission in the first transmission.
12. 12. The method of claim 1, wherein the first information comprises a number of repetitions of the second signal, and wherein the first device determines a number of first signals and/or a location of the first signals in the first transmission based on the first information, comprising at least one of: Under the condition that the repetition number is smaller than or equal to a preset threshold value, the first device determines the number of preambles in the first transmission as one; And under the condition that the repetition number is larger than the preset threshold value, the first device determines the number of preambles in the first transmission to be at least one.
13. 13. The method according to claim 1, wherein the first information comprises a transmission length of the second signal, and wherein the first device determines the number of first signals and/or the location of the first signals in the first transmission based on the first information, comprising any one of: in the case that the second signal is a repeated transmission, where the repeated transmission is a signal block-level repeated transmission, the first device determines the number of first signals and/or the position of the first signals in the first transmission according to the transmission length of the single transmission of the second signal; the first device determines the number of first signals in the first transmission and/or the position of the first signals according to the total transmission length of the second signals.
14. 14. The method according to any of claims 1-13, wherein the transmission length of the second signal comprises at least one of: a transmission length of a data portion of the second signal; The transmission length of the control signaling portion of the second signal.
15. 15. The method according to any of claims 1-14, wherein, in case the first signal comprises a preamble and/or postamble, the preambles and/or postamble transmitted at different positions in the first transmission may be the same or different.
16. 16. The method of claim 15, wherein the preambles and/or postamble transmitted at different locations in the first transmission may be the same or different, including at least one of: the preamble before the data which is not transmitted for the first time is the part of the preamble before the data which is transmitted for the first time; Postamble after the data not last transmitted is part of postamble after the data last transmitted; the sequence of the preamble before the data transmitted at least twice is different; The sequence of postamble after the data of at least two transmissions is different.
17. 17. The method of claim 1, wherein the first indication comprises at least one of: preamble; Scheduling the PDRCH transmitted scheduling information; scheduling the PRDCH transmitted scheduling information; Interface messages between the network side device and the first device.
18. 18. The method according to any of claims 1-17, wherein the number of first signals in the first transmission is a predefined unique number and/or the position of the first signals in the first transmission is a predefined unique position, or The number of the first signals in the first transmission is one of a plurality of candidate numbers of the predefined or network side device configuration or the first device configuration, and/or the position of the first signals in the first transmission is one of a plurality of candidate positions of the predefined or network side device configuration or the first device configuration.
19. 19. A signal transmission apparatus for use with a first device, the apparatus comprising: The device comprises a determining module, a receiving module and a receiving module, wherein the determining module is used for determining the number of first signals and/or the positions of the first signals in first transmission according to first information, the first transmission comprises D2R transmission and/or R2D transmission, and the first device is a response device or a read-write device; a transmission module, configured to perform transmission of the first signal according to the number of the first signals and/or the position of the first signals; Wherein the first information includes at least one of: whether frequency hopping exists in the first transmission; Whether a time interval exists in the first transmission; a repeated transmission mode of the second signal; The type of the second signal; a transmission length of the second signal; A data transmission rate of the second signal; a data size of the second signal; The number of repetitions of the second signal; Resources available for a-IoT transmissions; The type of the answering machine; the type of the read-write equipment; A first indication for indicating the number of first signals in the first transmission and/or the location of the first signals; Wherein the first signal comprises at least one of preamble, midamble and postamble; The second signal includes at least one of PDRCH and PRDCH.
20. 20. The apparatus of claim 19, wherein the frequency hopping is that of CW, and/or wherein, in the case where the first transmission is a D2R transmission based on CW reverse reflection, In case the first transmission is a D2R transmission, the frequency hopping is a frequency hopping based on a frequency shift of a line code or a square wave, and/or, In the case where the first transmission is a D2R transmission based on an internally generated signal, the frequency hopping is a frequency hopping based on a frequency position change of a baseband signal, or the frequency hopping is a frequency hopping based on a frequency position change of a generated carrier.

Description

Signal transmission method, device, terminal and network side equipment Technical Field The application belongs to the technical field of communication, and particularly relates to a signal transmission method, a signal transmission device, a terminal and network side equipment. Background In the technology of the environment internet of things (Ambient Internet of Things, AIoT), one or more of a Preamble (Preamble), a Midamble (Midamble), and an end code (postamble) are used in Device-to-Reader (D2R) or Reader-to-Device (R2D) transmission for timing, sampling frequency offset (Sample Frequency Offset, SFO), estimation of carrier frequency offset (Carrier Frequency Offset, CFO), time synchronization, channel estimation, and interference estimation. However, the number and/or transmission location of preamble, postamble and midambles used in D2R transmission or R2D transmission are not clear, which affects the transmission performance of D2R transmission or R2D transmission. Disclosure of Invention The embodiment of the application provides a signal transmission method, a device, a terminal and network side equipment, which can solve the problem that the number and/or transmission positions of preamble, postamble and midambles used in D2R transmission or R2D transmission are not clear, and the transmission performance of D2R transmission or R2D transmission is influenced. In a first aspect, there is provided a signal transmission method performed by a first device, the method comprising: The method comprises the steps that first equipment determines the number of first signals and/or the positions of the first signals in first transmission according to first information, wherein the first transmission comprises D2R transmission and/or R2D transmission, and the first equipment is response equipment or read-write equipment; The first device performs transmission of the first signal according to the number of the first signals and/or the position of the first signals; Wherein the first information includes at least one of: whether frequency hopping exists in the first transmission; Whether a time interval exists in the first transmission; a repeated transmission mode of the second signal; The type of the second signal; a transmission length of the second signal; A data transmission rate of the second signal; a data size of the second signal; The number of repetitions of the second signal; Resources available for a-IoT transmissions; The type of the answering machine; the type of the read-write equipment; A first indication for indicating the number of first signals in the first transmission and/or the location of the first signals; Wherein the first signal comprises at least one of preamble, midamble and postamble; The second signal includes at least one of PDRCH and PRDCH. In a second aspect, there is provided a signal transmission apparatus for use with a first device, the apparatus comprising: The device comprises a determining module, a receiving module and a receiving module, wherein the determining module is used for determining the number of first signals and/or the positions of the first signals in first transmission according to first information, the first transmission comprises D2R transmission and/or R2D transmission, and the first device is a response device or a read-write device; a transmission module, configured to perform transmission of the first signal according to the number of the first signals and/or the position of the first signals; Wherein the first information includes at least one of: whether frequency hopping exists in the first transmission; Whether a time interval exists in the first transmission; a repeated transmission mode of the second signal; The type of the second signal; a transmission length of the second signal; A data transmission rate of the second signal; a data size of the second signal; The number of repetitions of the second signal; Resources available for a-IoT transmissions; The type of the answering machine; the type of the read-write equipment; A first indication for indicating the number of first signals in the first transmission and/or the location of the first signals; Wherein the first signal comprises at least one of preamble, midamble and postamble; The second signal includes at least one of PDRCH and PRDCH. In a third aspect, there is provided a signal transmission apparatus configured to perform the steps of the method of the first aspect. In a fourth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, performs the steps of the method according to the first aspect. In a fifth aspect, a terminal is provided, including a processor and a communication interface, where the processor is configured to determine, according to first information, a number of first signals and/or a location of the first signals in a first transmission, where the