CN-122028147-A - Communication method, storage medium, chip system and communication system

Abstract

The application discloses a communication method, a storage medium, a chip system and a communication system, wherein the method can comprise the steps of determining K candidate sequences according to the identification of a first cell; K is a positive integer, a superposition sequence is determined from K candidate sequences, wake-up information is modulated based on the superposition sequence to generate a first wake-up signal, the wake-up information indicates whether to wake up a first terminal device in a first cell, and the first wake-up signal is sent. By adopting the application, different cells can adopt different superposition sequences to generate the wake-up signal, which is beneficial to reducing inter-cell interference.

Inventors

• CAO YONGZHAO
• SHAN BAOKUN

Assignees

• 荣耀终端股份有限公司

Dates

Publication Date

20260512

Application Date

20241108

Claims (20)

1. 1. A method of communication, the method comprising: generating a first wake-up signal, wherein the first wake-up signal indicates whether to wake up a first terminal device in a first cell, the first wake-up signal is generated based on wake-up information modulated by a superposition sequence, the superposition sequence is determined from K candidate sequences, the K candidate sequences are determined based on the identification of the first cell, the candidate sequences determined by the identifications of different cells are different, and K is a positive integer; And sending the first wake-up signal.
2. 2. The method of claim 1, wherein the K candidate sequences are determined based on a first base sequence determined from N sequences based on a first sequence index determined based on an identity of the first cell.
3. 3. The method of claim 2, wherein the K candidate sequences are obtained by a first cyclic shift process for the first base sequence, and wherein a number of cyclic shifts of the first cyclic shift process is related to an identity of the first cell.
4. 4. The method of claim 1, wherein the K candidate sequences are determined from N sequences based on K second sequence indices determined based on an identity of a first cell.
5. 5. The method of claim 2, wherein the first sequence index is determined based on an identification of the first cell and a first time domain index indicating an index of a first orthogonal frequency division multiplexing, OFDM, symbol, or an index of a first slot, or an index of a first subframe, or an index of a first radio frame, the first OFDM symbol being one of at least one OFDM symbol occupied by the wakeup information, the first slot being one of at least one slot occupied by the wakeup information, the first subframe being one of at least one subframe occupied by the wakeup information, the first radio frame being one of at least one radio frame occupied by the wakeup information.
6. 6. The method of claim 5, wherein the K candidate sequences are obtained by performing a second cyclic shift on the first base sequence, and wherein a number of cyclic shifts of the second cyclic shift is related to the first time domain index.
7. 7. The method of claim 4, wherein the K second sequence indices are determined based on an identification of the first cell and a first time domain index indicating an index of a first OFDM symbol, or an index of a first slot, or an index of a first subframe, or an index of a first radio frame, the first OFDM symbol being one of at least one OFDM symbol occupied by the wake-up information, the first slot being one of at least one slot occupied by the wake-up information, the first subframe being one of at least one subframe occupied by the wake-up information, the first radio frame being one of at least one radio frame occupied by the wake-up information.
8. 8. The method of claim 1, wherein the K candidate sequences are determined based on a subset of sequences corresponding to each of M OOK symbols, the M OOK symbols being obtained by modulating the wake up information based on OOK modulation, the subset of sequences corresponding to each of the M OOK symbols being determined based on an identification of the first cell, and an index of the M on-off keying OOK symbols.
9. 9. The method of claim 8, wherein a subset of sequences to which a first OOK symbol corresponds is determined based on a base sequence to which the first OOK symbol corresponds, the base sequence to which the first OOK symbol corresponds is determined based on an identity of the first cell and an index of the first OOK symbol, the first OOK symbol being any one of the M OOK symbols.
10. 10. The method of claim 9, wherein the subset of sequences corresponding to the first OOK symbol is obtained by a third cyclic shift process based on a base sequence corresponding to the first OOK symbol, wherein a number of cyclic shifts of the third cyclic shift process is related to an index of the first OOK symbol, and wherein the first OOK symbol is any one of the M OOK symbols.
11. 11. The method of claim 8, wherein a subset of sequences to which a first OOK symbol corresponds is determined from among N sequences based on a set of sequence indices to which the first OOK symbol corresponds, the set of sequence indices to which the first OOK symbol corresponds is determined based on an identification of the first cell and an index of the first OOK symbol, the first OOK symbol being any one of the M OOK symbols.
12. 12. The method according to any of claims 1-11, wherein the number K of candidate sequences is a parameter configured by a network device or predefined by a protocol.
13. 13. The method of claim 4, wherein the K second sequence indices relate to a pseudo-random sequence that is initialized based on a radio frame, or that is initialized based on a first period, or that is initialized based on a first event, the first event being an event that transmits a wake-up signal.
14. 14. A communication method, applied to a first terminal device, the method comprising: The method comprises the steps of receiving a first wake-up signal, wherein the first wake-up signal indicates whether to wake up first terminal equipment in a first cell, the first wake-up signal is generated based on superimposed sequence modulation wake-up information, the superimposed sequence is determined from K candidate sequences, the K candidate sequences are determined based on the identification of the first cell, the candidate sequences determined by the identifications of different cells are different, and K is a positive integer; determining whether to wake up based on the first wake up signal.
15. 15. The method of claim 14, wherein the K candidate sequences are determined based on a first base sequence determined from N sequences based on a first sequence index determined based on an identity of the first cell.
16. 16. The method of claim 15, wherein the K candidate sequences are obtained by a first cyclic shift process for the first base sequence, and wherein a number of cyclic shifts of the first cyclic shift process is related to an identity of the first cell.
17. 17. The method of claim 14, wherein the K candidate sequences are determined from N sequences based on K second sequence indices determined based on an identity of a first cell.
18. 18. The method of claim 15, wherein the first sequence index is determined based on an identification of the first cell and a first time domain index indicating an index of a first orthogonal frequency division multiplexing, OFDM, symbol, or an index of a first slot, or an index of a first subframe, or an index of a first radio frame, the first OFDM symbol being one of at least one OFDM symbol occupied by the wakeup information, the first slot being one of at least one slot occupied by the wakeup information, the first subframe being one of at least one subframe occupied by the wakeup information, the first radio frame being one of at least one radio frame occupied by the wakeup information.
19. 19. The method of claim 18, wherein the K candidate sequences are obtained by a second cyclic shift process for the first base sequence, and wherein a number of cyclic shifts for the second cyclic shift process is related to the first time domain index.
20. 20. The method of claim 19, wherein the K second sequence indices are determined based on an identification of the first cell and a first time domain index indicating an index of a first OFDM symbol, or an index of a first slot, or an index of a first subframe, or an index of a first radio frame, the first OFDM symbol being one of at least one OFDM symbol occupied by the wakeup information, the first slot being one of at least one slot occupied by the wakeup information, the first subframe being one of at least one subframe occupied by the wakeup information, the first radio frame being one of at least one radio frame occupied by the wakeup information.

Description

Communication method, storage medium, chip system and communication system Technical Field The present application relates to the field of communications technologies, and in particular, to a communications method, a storage medium, a chip system, and a communications system. Background To save power consumption of the terminal device, the third generation partnership project (3rd generation partnership project,3GPP) introduced a low power wake-up signal (lower power wake up signal, LP-WUS). The terminal device may include a main receiver (MAIN RECEIVER, MR) and a low-power wake-up receiver (LR-WUR), among others. In some scenarios, the terminal device may turn off the MR and monitor the LP-WUS using the LR-WUR to achieve the purpose of reducing power consumption. Currently, 3GPP supports the introduction of superimposed sequences to generate LP-WUS to flatten the spectrum when the LP-WUS is transmitted. However, how to determine the superimposed sequences to reduce inter-cell interference is a problem that needs to be solved at present. Disclosure of Invention The embodiment of the application provides a communication method, a storage medium, a chip system and a communication system, which can generate LP-WUS by adopting different superposition sequences aiming at different cells, thereby being beneficial to reducing inter-cell interference. In a first aspect, the present application provides a communication method, which may be applied to a network device, or an apparatus (for example, a chip, or a chip system, or a circuit) in the network device, or an apparatus capable of being used in cooperation with the network device, where the method may include generating a first wake-up signal, where the first wake-up signal indicates whether to wake up a first terminal device in a first cell, where the first wake-up signal is generated based on a superimposed sequence modulated wake-up information, where the superimposed sequence is determined from K candidate sequences, where the K candidate sequences are determined based on an identity of the first cell, where the candidate sequences determined by identities of different cells are different, where K is a positive integer, and where the first wake-up signal is transmitted. In the above embodiment, the network device may determine different candidate sequences for different cells in combination with the cell identifier, so that different cells select different superimposed sequences to modulate the wake-up information, which is beneficial to reducing inter-cell interference. With reference to the first aspect, in a possible implementation manner, the K candidate sequences are determined based on a first base sequence, the first base sequence is determined from the N sequences based on a first sequence index, and the first sequence index is determined based on an identification of the first cell. In the technical scheme, after the network equipment determines the first base sequence according to the identification of the first cell, the network equipment can combine the number of the required candidate sequences to sequentially perform cyclic shift processing on the first base sequence, so as to obtain K candidate sequences. This is advantageous in increasing the flexibility of the network device to determine candidate sequences. With reference to the first aspect, in a possible implementation manner, the K candidate sequences are obtained by performing a first cyclic shift process on the first base sequence, and the number of cyclic shift bits of the first cyclic shift process is related to the identity of the first cell. In this technical solution, the network device may determine the number of bits of the cyclic shift in a hopping manner based on the identity of the first cell and the number of sequences required. With reference to the first aspect, in a possible implementation manner, the K candidate sequences are determined from the N sequences based on K second sequence indexes, where the K second sequence indexes are determined based on the identity of the first cell. In this embodiment, the K candidate sequences may consist of K base sequences. With reference to the first aspect, in a possible implementation manner, the first sequence index is determined based on the identification of the first cell and a first time domain index, the first time domain index indicates an index of a first orthogonal frequency division multiplexing OFDM symbol, or an index of a first time slot, or an index of a first subframe, or an index of a first radio frame, the first OFDM symbol is one of at least one OFDM symbol occupied by the wake-up information, the first time slot is one of at least one time slot occupied by the wake-up information, the first subframe is one of at least one subframe occupied by the wake-up information, and the first radio frame is one of at least one radio frame occupied by the wake-up information. In this technical solution, the first base sequen