CN-122001547-A - Communication method and application device

Abstract

The embodiment of the application provides a communication method and an application device, which can be applied to the field of satellite communication, such as NTN. The method comprises the steps that a terminal device determines a first interleaving mode of a plurality of time-frequency units, the time-frequency units correspond to a first OCC sequence, the time-frequency units are used for bearing first data which are spread by the first OCC sequence, and the terminal device sends second data on the time-frequency units, wherein the second data are data obtained by interleaving the first data in the first interleaving mode. By adopting the embodiment of the application, the anti-interference performance of the information sent by the terminal device can be improved, the interference of other terminal information on the network side can be reduced, and the system performance and the system capacity can be improved.

Inventors

• ZHANG JINGWEI
• CHEN YING
• ZHANG HUAZI
• SHI PENGCHENG
• ZHANG JIAYIN
• QIAO YUNFEI

Assignees

• 华为技术有限公司

Dates

Publication Date

20260508

Application Date

20241108

Claims (20)

1. 1. A method of communication, comprising: the method comprises the steps that a terminal device determines a first interleaving mode of a plurality of time-frequency units, wherein the time-frequency units correspond to a first Orthogonal Cover Code (OCC) sequence, and the time-frequency units are used for bearing first data which are spread by the first OCC sequence; And the terminal device transmits second data on the plurality of time-frequency units, wherein the second data is the data of the first data after being interleaved in the first interleaving mode.
2. 2. The method as recited in claim 1, further comprising: The terminal device receives first information indicating whether interleaving is required.
3. 3. The method according to claim 1 or 2, wherein the determining, by the terminal device, a first interleaving manner of the plurality of time-frequency units comprises: The terminal device receives second information, where the second information is used to indicate the first interleaving manner.
4. 4. A method according to claim 3, wherein the second information comprises a first value, the method further comprising: The terminal device receives third information, where the third information is used to indicate a correspondence between at least one of the first values and the first interleaving manner.
5. 5. A method of communication, comprising: the network device determines a plurality of time-frequency units, wherein the time-frequency units correspond to a first Orthogonal Cover Code (OCC) sequence and are used for bearing first data which is spread by the first OCC sequence; The network device receives second data on the plurality of time-frequency units, wherein the second data is the data of the first data after being interleaved in a first interleaving mode.
6. 6. The method as recited in claim 5, further comprising: the network device transmits first information indicating whether interleaving is required.
7. 7. The method according to claim 5 or 6, further comprising: The network device transmits second information, where the second information is used to indicate the first interleaving manner.
8. 8. The method according to claim 3 or 7, wherein the second information comprises an interleaving sequence, the interleaving sequence corresponding to the plurality of time-frequency units, or the interleaving sequence corresponding to a time-frequency unit of the plurality of time-frequency units that needs interleaving.
9. 9. The method according to claim 3 or 7, wherein the second information is carried on a first radio network temporary identifier, RNTI, the first RNTI being indicative of the first interleaving manner.
10. 10. The method of claim 3 or 7, wherein the second information comprises a first value, the method further comprising: The network device transmits third information, where the third information is used to indicate a correspondence between at least one of the first values and the first interleaving manner.
11. 11. The method of claim 10, wherein the first value is a sequence index of the first OCC sequence.
12. 12. The method of any of claims 3, 4, 7 to 10, wherein the second information is further used to indicate whether interleaving is required.
13. 13. The method according to any of claims 3, 4, 7 to 12, wherein the correspondence of the second information and the first interleaving manner is pre-configured, or pre-defined, or determined by configuration information.
14. 14. The method according to any of claims 3, 4, 7 to 13, wherein the second information is further used to indicate a start element of a target interleaving sequence corresponding to the first interleaving manner.
15. 15. The communication device is characterized by comprising a processing unit, a first interleaving unit and a second interleaving unit, wherein the processing unit is used for determining a first interleaving mode of a plurality of time-frequency units, the plurality of time-frequency units correspond to a first Orthogonal Cover Code (OCC) sequence, and the plurality of time-frequency units are used for bearing first data which is spread by the first OCC sequence; and the receiving and transmitting unit is used for transmitting second data on the plurality of time-frequency units, wherein the second data is the data of the first data after being interleaved in the first interleaving mode.
16. 16. The apparatus of claim 15, wherein the transceiver unit is further configured to receive first information, the first information being configured to indicate whether interleaving is required.
17. 17. The apparatus according to claim 15 or 16, wherein the transceiver unit is further configured to receive second information, the second information being configured to indicate the first interleaving manner.
18. 18. The apparatus of claim 17, wherein the second information comprises a first value; The transceiver unit is further configured to receive third information, where the third information is used to indicate a correspondence between at least one of the first values and the first interleaving manner.
19. 19. A communication device, comprising: the processing unit is used for determining a plurality of time-frequency units, the time-frequency units correspond to a first Orthogonal Cover Code (OCC) sequence, and the time-frequency units are used for bearing first data which is spread by the first OCC sequence; And the receiving and transmitting unit is used for receiving second data on the plurality of time-frequency units, wherein the second data is the data of the first data after being interleaved in a first interleaving mode.
20. 20. The apparatus of claim 19, wherein the transceiver unit is further configured to transmit first information indicating whether interleaving is required.

Description

Communication method and application device Technical Field The present application relates to the field of communications technologies, and in particular, to a communications method and an application apparatus. Background Network devices (e.g., satellites, etc.) in a non-terrestrial network (non-TERRESTRIAL NETWORK, NTN) are much higher in operational altitude than network devices (e.g., base stations, etc.) in a terrestrial network, and thus network devices in NTN need to cover much larger terrestrial areas and serve a large number of terminal devices, requiring coverage enhancement techniques in an upstream communication scenario. Coverage enhancement techniques may include repeated transmission, transmission of one Transport Block (TB) in multiple slots (TB processing over multiple slots, TBoMS), demodulation reference signal (de modulation REFERENCE SIGNAL, DMRS) bundling, and so on. These techniques essentially use time-frequency resources repeatedly to transmit information from the terminal devices, resulting in more resources being occupied, increasing the transmission time of the information, and reducing the system capacity and throughput of each terminal device. To reduce resource usage, one skilled in the art may use orthogonal cover codes (orthogonal cover code, OCC) to enhance system capacity and increase the transmission rate of the terminal device. However, different OCC elements in the OCC may correspond to different phases, resulting in a phase difference between transmitted upstream data. If the frequency offset interference exists, the phase difference between the uplink data is affected, so that the network side may be difficult to despread to obtain the correct uplink data. Disclosure of Invention The embodiment of the application discloses a communication method and an application device, which can improve the anti-interference performance of information sent by a terminal device, reduce the interference of other terminal information on a network side and improve the system performance and the system capacity. In a first aspect, an embodiment of the present application discloses a first communication method, which may be applied to a terminal device, where the terminal device may be a terminal as a final product (final product), may be a component (component) or a module (module) with a terminal function, or may be a communication chip (for example, a processor, a baseband chip, or a chip system) that can be applied to the terminal. The method comprises the steps of determining a first interleaving mode of a plurality of time-frequency units, wherein the time-frequency units correspond to a first Orthogonal Cover Code (OCC) sequence, the time-frequency units are used for bearing first data which is spread by the first OCC sequence, and sending second data on the time-frequency units, and the second data is the data of the first data after interleaving in the first interleaving mode. Thus, the anti-interference performance of the terminal device for transmitting information can be improved, the interference of other terminal information on the network side can be reduced, and the system performance and the system capacity can be improved. The application does not limit the time-frequency unit, and the time-frequency unit can comprise time-domain resource units such as a super frame, a radio frame (simply called frame), a subframe (subframe), a time slot (slot), a sub-slot (sub-slot), a micro-slot (mini-slot), a symbol (symbol) and the like. The time-frequency unit may alternatively be a unit of time-domain resource units, e.g. a symbol group of a plurality of symbols. The time-frequency unit may further include the aforementioned frequency domain resource units, such as sub-carrier (sub-carrier), sub-carrier spacing (sub-CARRIERSPACING, SCS), bandwidth, resource Block (RB), resource Block Group (RBG), bandwidth part (band WIDTH PART, BWP), component carrier (component carrier), and so on. In the embodiment of the present application, the plurality of time-frequency units may be time-frequency units configured by the network side to perform OCC extension for the terminal device. The method for configuring the plurality of time-frequency units by the network device is not limited, and optionally, the method further comprises the step that the terminal device receives the information A of the network device. Accordingly, the network device transmits information a to the terminal device. Wherein the information a is used to indicate a plurality of time-frequency units. Alternatively, the information a may be system information, such as a system message block (systeminformation block, SIB). Or the information a may be configuration information or the like. Illustratively, the information a may be higher layer signaling, such as medium access control-element (MAC CE) signaling or radio resource control (radio resource control, RRC) signaling, etc. The information a may alternatively be down