Communication method and communication apparatus

Abstract

The present application provides a communication method and a communication apparatus. The method comprises: K bits comprised in a first wake-up signal being carried on N symbol groups, P bits among the K bits being carried on an i-th symbol group among the N symbol groups, and some or all of the K bits being carried on an ON part in the i-th symbol group, or some or all of the other K-P bits among the K bits being carried on the ON part in the i-th symbol group; and a terminal device receiving first to j2-th symbol groups among the N symbol groups, and on the basis of the received first to j2-th symbol groups, determining whether to be woken up, wherein both i and j2 are any values from 1 to N, and N, K and P are all positive integers. The communication method of the present application can enable a terminal device to complete the reception of a wake-up signal within a shorter time, so that a receiver can be turned off in advance to reduce the power consumption.

Description

Communication method and communication device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on April 3, 2024, with application number 202410404962.7 and application name “Communication Method and Communication Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and more specifically, to a communication method and a communication device. Background Art

[0003] To reduce power consumption in small, low-power circuits, network devices typically use simple modulation methods such as on-off keying (OOK) to modulate the wake-up signal. Accordingly, the small, low-power circuit in the terminal device receives the wake-up signal using envelope detection. Each information bit of the wake-up signal is modulated onto an OOK symbol by the network device. The terminal device receives the wake-up signal by receiving a number of OOK symbols equal to the number of information bits in the wake-up signal. Summary of the Invention

[0004] The present application provides a communication method and a communication device, which can enable a terminal device to complete the reception of a wake-up signal in a shorter time, thereby shutting down the receiver in advance to save power consumption.

[0005] In a first aspect, a communication method is provided. The method may be executed by a terminal device, or by a module (e.g., a chip or circuit) in the terminal device, or by a logical node, logical module, or software that implements all or part of the terminal device, although this application does not limit this. For ease of understanding, the following description uses execution by a terminal device as an example.

[0006] The method includes: a terminal device receives a first symbol group to a j2th symbol group among N symbol groups, wherein the N symbol groups carry K bits included in a first wake-up signal, P bits of the K bits are carried in an i-th symbol group among the N symbol groups, and the i-th symbol group includes multiple symbols; wherein some or all of the K bits are carried in an ON portion of the i-th symbol group, or wherein some or all of the other KP bits of the K bits are carried in an ON portion of the i-th symbol group. The terminal device determines whether it is awakened based on the received first symbol group to the j2th symbol group, wherein i and j2 are both any values ​​between 1 and N, and N, K, and P are all positive integers.

[0007] Through the above method, for a terminal device that only has envelope detection capability, the terminal device determines whether it is awakened after receiving N symbol groups, or the terminal device can determine whether it is awakened based on a portion of the N received symbol groups; for a terminal device with higher detection capability (such as a terminal device with an I\Q branch receiver or a terminal device with an orthogonal frequency division multiplexing (OFDM) receiver), the terminal device can detect the additional bit information carried by the ON part in any symbol group (for clarity, the ability to detect the additional bit information carried by the ON part in each symbol group will be referred to as the terminal device having sequence detection capability). Therefore, the terminal device can determine whether it is awakened based on a portion of the N received symbol groups, and the terminal device can even determine whether it is awakened based on the first symbol group in the N received symbol groups. Therefore, the above method enables the terminal device to complete the reception of the wake-up signal in a shorter time, thereby shutting down the receiver in advance to save power consumption.

[0008] In the embodiment of the present application, the terminal device having sequence detection capability, the terminal device having an I\Q branching capability, and the terminal device having an OFDM receiver can be replaced with each other, and the present application does not limit this.

[0009] In combination with the first aspect, in certain implementations of the first aspect, the i-th symbol group is the first symbol group received among the N symbol groups.

[0010] Specifically, the i-th symbol group being the first symbol group received among the N symbol groups can be understood as the terminal device first receiving the i-th symbol group among the N symbol groups in the time domain.

[0011] Specifically, the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry part of the K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry the other KP bits among the K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry part of the other KP bits among the K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group may not carry additional bit information.

[0012] Through the above method, the terminal device carries extra bits of information in the ON portion of the first received symbol group (i). This allows the terminal device to obtain all or more of the K bits of information in the first received symbol group (i). This allows the terminal device to obtain the required wake-up signal information in a shorter time, shutting down the receiver in advance to save power. Furthermore, the terminal device can decide whether to wake up the main receiver based on the received wake-up signal information.

[0013] In combination with the first aspect, in certain implementations of the first aspect, the K bits are divided into N segments of bits, and the P bits are the i-th segment of bits in the N segments of bits.

[0014] Specifically, the above-mentioned N symbol groups carry the K bits included in the first wake-up signal, that is, K bits are carried in N symbol groups, and K bits are carried in N symbol groups including: the above-mentioned N segments of bits are carried in N symbol groups, and the N segments of bits correspond one-to-one to the N symbol groups.

[0015] Through the above method, the K bits included in the first wake-up signal can be carried on N symbol groups through OOK modulation, which can ensure that a terminal device with only envelope detection capability can also receive the complete first wake-up signal.

[0016] In combination with the first aspect, in certain implementations of the first aspect, part or all of the above K bits are carried in the ON part of the i-th symbol group, including: the above P bits are carried in the i-th symbol group through OOK modulation, and part or all of the above K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

[0017] Specifically, part or all of the above K bits carried in the ON part in the i-th symbol group through non-OOK modulation include P bits.

[0018] Exemplarily, the P bits are carried in the i-th symbol group through OOK modulation, and the K bits are carried in the ON part in the i-th symbol group through non-OOK modulation.

[0019] Among them, the ON part of each symbol in the multiple symbols included in the i-th symbol group carries at least part or all of N1 / P bits in the K bits, N1 represents the number of bits of some or all of the K bits, and N1 / P is a positive integer.

[0020] Through the above method, for a terminal device with sequence detection capability, the terminal device can detect the K bits carried in the ON portion of the i-th symbol group via non-OOK modulation using sequence detection alone, without simultaneously enabling envelope detection, thereby reducing the operational complexity of the terminal device. Furthermore, the terminal device can obtain all or more bits of information within the K bits without receiving all N symbol groups, reducing the time it takes to receive the wake-up signal and reducing power consumption.

[0021] In combination with the first aspect, in certain implementations of the first aspect, part or all of the other KP bits among the above K bits are carried in the ON part of the i-th symbol group, including: the above P bits are carried in the i-th symbol group through OOK modulation, and part or all of the other KP bits among the above K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

[0022] Exemplarily, the P bits are carried in the i-th symbol group through OOK modulation, and the bits other than the P bits among the K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

[0023] In which, the ON part of each symbol in the multiple symbols included in the i-th symbol group carries at least part or all of N2 / P bits of the other KP bits in the K bits, N2 represents the number of bits of some or all of the other KP bits in the K bits, and N2 / P is a positive integer.

[0024] Through the above method, for a terminal device with sequence detection capability, the terminal device can detect the P bits carried in the i-th symbol group by OOK modulation through envelope detection, and the terminal device can detect the KP bits carried in the ON part of the i-th symbol group by non-OOK modulation through sequence detection, so that all K bits of information can be obtained through the i-th symbol group, and the wake-up signal can be received in a shorter time. In addition, the bits other than those carried in the i-th symbol group by OOK modulation are modulated into the ON part of the i-th symbol group. When the network device knows that the terminal device it serves has sequence detection capability, the network can choose to send only the i-th symbol group, and does not need to send all N symbol groups, thereby saving resource overhead for sending wake-up information and improving information transmission efficiency.

[0025] In combination with the first aspect, in certain implementations of the first aspect, the P bits are determined based on the first information, and the KP bits are preset bits.

[0026] Exemplarily, the first information is identification information of a terminal device, group identification information, subgroup identification information, or a bitmap, in which one bit corresponds to a terminal device, a group of terminal devices, or a subgroup of terminal devices.

[0027] Through the above method, for a terminal device with envelope detection capability, it is necessary to receive all N symbol groups to receive the complete first wake-up signal or obtain complete wake-up information. For a terminal device with sequence detection capability, since KP bits are preset bits, the terminal device knows in advance the preset bit information in the KP bits corresponding to each ON symbol and the load (corresponding to English: overlaid) sequence of the wake-up signal corresponding to each ON symbol. Therefore, the terminal device only needs to detect whether the overlaid sequence is sent in each OOK symbol to determine whether the OOK symbol is an ON symbol. In this case, the detection performance of the terminal device with sequence detection capability can be improved, thereby improving the coverage of the network device for the terminal device with sequence detection capability within the cell.

[0028] Among them, the overlaid sequence is translated as a load sequence or an overlapping sequence, which refers to a sample-level sequence carried on the ON symbol, so it can also be called a sequence carried by the ON symbol (referred to as a carrying sequence). As an example, there are X slices (or segments) in each OFDM symbol in the OOK signal. When the number of slices X is 1, the OOK signal is converted into a special form, namely an OOK-1 type signal. Among them, the OOK signal is usually processed using a discrete Fourier transform (DFT) before performing extended prefix (CP)-OFDM modulation. Before DFT processing, the sequence corresponding to each slice in each OFDM symbol mentioned above is the above-mentioned overlaid sequence.

[0029] In combination with the first aspect, in certain implementations of the first aspect, the KP bits are determined based on the first information, and the P bits are preset bits.

[0030] Through the above method, for terminal devices with sequence detection capabilities, since the P bits are preset, the terminal device knows the ON / OFF pattern within each symbol group in advance. Therefore, it can directly detect the overlaid sequence sent by the network device in the ON portion of the OOK symbol, thereby detecting the wake-up signal information carried in the ON portion. In this way, terminal devices with sequence detection capabilities do not need to detect the ON and OFF portions of an OOK symbol, but can directly perform sequence detection on the ON portion, reducing the detection complexity of the terminal device.

[0031] In combination with the first aspect, in certain implementations of the first aspect, the K bits are determined based on the first information.

[0032] Through the above method, when the above K bits are all determined based on the first information, the number of bits transmitted by the wake-up signal is the least and the transmission efficiency is the highest.

[0033] Exemplarily, if the first information is the identification information of the terminal device, the above-mentioned first wake-up signal is used to wake up the terminal device; if the first information is group identification information, the above-mentioned first wake-up signal is used to wake up the terminal device in the group indicated by the group identification information; if the first information is subgroup identification information, the above-mentioned first wake-up signal is used to wake up the terminal device in the subgroup indicated by the subgroup identification information; if the first information is a bit map, the above-mentioned first wake-up signal is used to wake up the terminal device or terminal device group or terminal device subgroup corresponding to the bit position in which all bits in the bit map have a specific value (for example, 1).

[0034] In combination with the first aspect, in certain implementations of the first aspect, the above-mentioned terminal device receives the 1st symbol group to the j1th symbol group among N symbol groups, including: the terminal device receives each symbol group among the 1st symbol group to the j1th symbol group through at least one monitoring opportunity among multiple monitoring opportunities, and the multiple monitoring opportunities correspond one-to-one to multiple synchronization signal blocks (SSBs).

[0035] Through the above method, the network device will repeatedly send each symbol group in the N symbol groups at multiple monitoring opportunities corresponding to multiple SSBs, and the terminal device can also receive each symbol group in the N symbol groups at at least one monitoring opportunity among the multiple monitoring opportunities. The terminal devices corresponding to different SSBs can complete the reception of the wake-up signal in a shorter time.

[0036] Exemplarily, the first wake-up signal may be a low power wake-up signal (LP-WUS) or a low power synchronization signal (LP-SS) or other power-saving signals, etc., which is not limited in this application.

[0037] In a second aspect, a communication method is provided. This method can be executed by a network device, or by a module (e.g., a chip or circuit) within the network device, or by a logical node, logical module, or software that implements all or part of the network device, although this application does not limit this. For ease of understanding, the following description uses execution by a network device as an example.

[0038] The method includes: a network device determines a first wake-up signal, the first wake-up signal including K bits, the K bits carried in N symbol groups, P bits of the K bits carried in the i-th symbol group of the N symbol groups, the i-th symbol group including multiple symbols; wherein some or all of the K bits are carried in an ON portion of the i-th symbol group, or some or all of the other KP bits of the K bits are carried in the ON portion of the i-th symbol group. The network device transmits the 1st symbol group to the j1th symbol group of the N symbol groups, wherein i and j1 are both any values ​​between 1 and N, and N, K, and P are all positive integers.

[0039] Through the above method, when terminal devices with different signal detection and reception capabilities exist simultaneously within the coverage area of ​​the base station, the base station does not need to send different wake-up signals to the terminal devices with different detection and reception capabilities. That is, the base station can achieve the following by sending the same wake-up signal: 1) The terminal device with only envelope detection capability receives all N symbol groups to obtain the wake-up signal information; 2) The terminal device with sequence detection capability obtains the wake-up signal information by receiving any symbol group, which can reduce the operation complexity of the base station.

[0040] In combination with the second aspect, in certain implementations of the second aspect, the above-mentioned i-th symbol group is the symbol group sent first among the N symbol groups.

[0041] Specifically, the i-th symbol group being the first symbol group sent among the N symbol groups can be understood as the network device sending the i-th symbol group among the N symbol groups first in the time domain.

[0042] Specifically, the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry part of the K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry the other KP bits among the K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry part of the other KP bits among the K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group may not carry additional bit information.

[0043] Using this method, the network device carries extra bits of information in the ON portion of the first symbol group it sends, the i-th symbol group. Accordingly, the terminal device receives the i-th symbol group first. The terminal device can obtain all K bits of information or more in the first i-th symbol group it receives, thereby obtaining the required wake-up signal information in a shorter time and shutting down the receiver in advance to save power.

[0044] In combination with the second aspect, in certain implementations of the second aspect, the K bits are divided into N segments of bits, and the P bits are the i-th segment of bits in the N segments of bits.

[0045] Specifically, the above-mentioned N symbol groups carry the K bits included in the first wake-up signal, that is, K bits are carried in N symbol groups, and K bits are carried in N symbol groups including: the above-mentioned N segments of bits are carried in N symbol groups, and the N segments of bits correspond one-to-one to the N symbol groups.

[0046] Through the above method, the K bits included in the first wake-up signal can be carried on N symbol groups through OOK modulation, which can ensure that a terminal device with only envelope detection capability can also receive the complete first wake-up signal.

[0047] In combination with the second aspect, in certain implementations of the second aspect, part or all of the above K bits are carried in the ON part of the i-th symbol group, including: the above P bits are carried in the i-th symbol group through OOK modulation, and part or all of the above K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

[0048] Specifically, part or all of the above K bits carried in the ON part in the i-th symbol group through non-OOK modulation include P[ bits.

[0049] Exemplarily, the P bits are carried in the i-th symbol group through OOK modulation, and the K bits are carried in the ON part in the i-th symbol group through non-OOK modulation.

[0050] Among them, the ON part of each symbol in the multiple symbols included in the i-th symbol group carries at least part or all of N1 / P bits in the K bits, N1 represents the number of bits of some or all of the K bits, and N1 / P is a positive integer.

[0051] Through the above method, for a terminal device with sequence detection capability, the terminal device can detect the K bits carried in the ON portion of the i-th symbol group via non-OOK modulation using sequence detection alone, without simultaneously enabling envelope detection, thereby reducing the operational complexity of the terminal device. Furthermore, the terminal device can obtain all or more bits of information within the K bits without receiving all N symbol groups, reducing the time it takes to receive the wake-up signal and reducing power consumption.

[0052] In combination with the second aspect, in certain implementations of the second aspect, part or all of the other KP bits among the above K bits are carried in the ON part of the i-th symbol group, including: the above P bits are carried in the i-th symbol group through OOK modulation, and part or all of the other KP bits among the above K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

[0053] Exemplarily, the P bits are carried in the i-th symbol group through OOK modulation, and the bits other than the P bits among the K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

[0054] In which, the ON part of each symbol in the multiple symbols included in the i-th symbol group carries at least part or all of N2 / P bits of the other KP bits in the K bits, N2 represents the number of bits of some or all of the other KP bits in the K bits, and N2 / P is a positive integer.

[0055] Through the above method, for a terminal device with sequence detection capability, the terminal device can detect the P bits carried in the i-th symbol group through OOK modulation by means of envelope detection, and the terminal device can detect the KP bits carried in the ON part of the i-th symbol group through non-OOK modulation by means of sequence detection, so that all K bits of information can be obtained through the i-th symbol group, and the reception of the wake-up signal can be completed in a shorter time. In addition, the bits other than those carried in the i-th symbol group through OOK modulation are modulated into the ON part of the i-th symbol group. When the network device knows that the terminal device it serves has sequence detection capability, the network can choose to send only the i-th symbol group, and does not need to send all N symbol groups, thereby saving resource overhead for sending wake-up information and improving information transmission efficiency.

[0056] In combination with the second aspect, in certain implementations of the second aspect, the P bits are determined based on the first information, and the KP bits are preset bits.

[0057] Exemplarily, the first information is identification information of a terminal device, group identification information, subgroup identification information, or a bitmap, in which one bit corresponds to a terminal device, a group of terminal devices, or a subgroup of terminal devices.

[0058] Through the above method, for a terminal device with envelope detection capability, it is necessary to receive all N symbol groups in order to receive the complete first wake-up signal or obtain complete wake-up information. For a terminal device with sequence detection capability, since KP bits are preset bits, the terminal device knows in advance the preset bit information in the KP bits corresponding to each ON symbol and the load (overlaid) sequence corresponding to the wake-up signal on each ON symbol. Therefore, the terminal device only needs to detect whether the overlaid sequence is sent in each OOK symbol to determine whether the OOK symbol is an ON symbol. In this case, the detection performance of the terminal device with sequence detection capability can be improved, thereby improving the coverage of the network device for the terminal device with sequence detection capability within the cell.

[0059] In combination with the second aspect, in certain implementations of the second aspect, the KP bits are determined based on the first information, and the P bits are preset bits.

[0060] Through the above method, for terminal devices with sequence detection capabilities, since the P bits are preset, the terminal device knows the ON / OFF pattern within each symbol group in advance. Therefore, it can directly detect the overlaid sequence sent by the network device in the ON portion of the OOK symbol, thereby detecting the wake-up signal information carried in the ON portion. In this way, terminal devices with sequence detection capabilities do not need to detect the ON and OFF portions of an OOK symbol, but can directly perform sequence detection on the ON portion, reducing the detection complexity of the terminal device.

[0061] In combination with the second aspect, in certain implementations of the second aspect, the K bits are determined based on the first information.

[0062] Through the above method, when the above K bits are all determined based on the first information, the number of bits transmitted by the wake-up signal is the least and the transmission efficiency is the highest.

[0063] Exemplarily, if the first information is the identification information of the terminal device, the above-mentioned first wake-up signal is used to wake up the terminal device; if the first information is group identification information, the above-mentioned first wake-up signal is used to wake up the terminal device in the group indicated by the group identification information; if the first information is subgroup identification information, the above-mentioned first wake-up signal is used to wake up the terminal device in the subgroup indicated by the subgroup identification information; if the first information is a bit map, the above-mentioned first wake-up signal is used to wake up the terminal device or terminal device group or terminal device subgroup corresponding to the bit position in which all bits in the bit map have a specific value (for example, 1).

[0064] In combination with the second aspect, in certain implementations of the second aspect, the above-mentioned network device corresponds to multiple SSBs, and the above-mentioned network device sends the 1st symbol group to the j1th symbol group among the N symbol groups, including: the network device repeatedly sends the nth symbol group among the above-mentioned N symbol groups through multiple first monitoring opportunities, and the multiple first monitoring opportunities correspond to the multiple SSBs; the network device repeatedly sends the n+1th symbol group among the above-mentioned N symbol groups through multiple second monitoring opportunities, and the multiple second monitoring opportunities correspond to the multiple SSBs, where n is any value from 1 to j1.

[0065] Through the above method, the network device will repeatedly send each symbol group in N symbol groups at multiple monitoring times corresponding to multiple SSBs, and the terminal devices corresponding to different SSBs can complete the reception of the wake-up signal in a shorter time.

[0066] Exemplarily, the first wake-up signal may be LP-WUS or LP-SS or other power saving signals, etc., which is not limited in the present application.

[0067] In a third aspect, a communication method is provided. This method can be executed by a terminal device, or by a module (e.g., a chip or circuit) in the terminal device, or by a logical node, logical module, or software that implements all or part of the terminal device, although this application does not limit this. For ease of understanding, the following description uses execution by a terminal device as an example.

[0068] The method includes: a terminal device receiving a first symbol group to a j2th symbol group among N symbol groups, the N symbol groups carrying K bits included in a first wake-up signal, each of the first symbol group to the j2th symbol group being received through at least one monitoring opportunity among a plurality of monitoring opportunities, the plurality of monitoring opportunities corresponding to a plurality of SSBs. The terminal device determines whether to be awakened based on the received first symbol group to the j2th symbol group, where j2 is any value between 1 and N, and N and K are both positive integers.

[0069] Through the above method, the network device will repeatedly send each symbol group in the N symbol groups at multiple monitoring opportunities corresponding to multiple SSBs, and the terminal device can also receive each symbol group in the N symbol groups at at least one monitoring opportunity among the multiple monitoring opportunities. The terminal devices corresponding to different SSBs can complete the reception of the wake-up signal in a shorter time.

[0070] In conjunction with the third aspect, in certain implementations of the third aspect, P bits of the K bits are carried in the i-th symbol group of N symbol groups, where the i-th symbol group includes multiple symbols. Part or all of the K bits are carried in the ON portion of the i-th symbol group, or part or all of the other KP bits of the K bits are carried in the ON portion of the i-th symbol group, where i is any value between 1 and N, and P is a positive integer.

[0071] Through the above method, for a terminal device with only envelope detection capability, the terminal device determines whether to be awakened after receiving N symbol groups, or the terminal device can determine whether to be awakened based on a portion of the N received symbol groups. For a terminal device with sequence detection capability, the terminal device can detect the additional bit information carried by the ON portion of each symbol group. Therefore, the terminal device can determine whether to be awakened based on a portion of the N received symbol groups, or even based on the first symbol group of the N received symbol groups. Therefore, the above method enables the terminal device to complete the reception of the wake-up signal in a shorter time, thereby shutting down the receiver in advance to save power.

[0072] In combination with the third aspect, in certain implementations of the third aspect, the i-th symbol group is the first symbol group received among the N symbol groups.

[0073] Specifically, the i-th symbol group being the first symbol group received among the N symbol groups can be understood as the terminal device first receiving the i-th symbol group among the N symbol groups in the time domain.

[0074] Specifically, the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry part of the K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry the other KP bits among the K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry part of the other KP bits among the K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group may not carry additional bit information.

[0075] Through the above method, the terminal device carries extra bits of information in the ON portion of the first received symbol group (i). This allows the terminal device to obtain all or more of the K bits of information in the first received symbol group (i). This allows the terminal device to obtain the required wake-up signal information in a shorter time, shutting down the receiver in advance to save power. Furthermore, the terminal device can decide whether to wake up the main receiver based on the received wake-up signal information.

[0076] In combination with the third aspect, in certain implementations of the third aspect, the K bits are divided into N segments of bits, and the P bits are the i-th segment of bits in the N segments of bits.

[0077] Specifically, the above-mentioned N symbol groups carry the K bits included in the first wake-up signal, that is, K bits are carried in N symbol groups, and K bits are carried in N symbol groups including: the above-mentioned N segments of bits are carried in N symbol groups, and the N segments of bits correspond one-to-one to the N symbol groups.

[0078] Through the above method, the K bits included in the first wake-up signal can be carried on N symbol groups through OOK modulation, which can ensure that terminal devices with only envelope detection capability can also receive the complete first wake-up signal or obtain complete wake-up information.

[0079] In combination with the third aspect, in certain implementations of the third aspect, part or all of the above K bits are carried in the ON part of the i-th symbol group, including: the above P bits are carried in the i-th symbol group through OOK modulation, and part or all of the above K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

[0080] Specifically, part or all of the above K bits carried in the ON part in the i-th symbol group through non-OOK modulation include P[ bits.

[0081] Exemplarily, the P bits are carried in the i-th symbol group through OOK modulation, and the K bits are carried in the ON part in the i-th symbol group through non-OOK modulation.

[0082] Among them, the ON part of each symbol in the multiple symbols included in the i-th symbol group carries at least part or all of N1 / P bits in the K bits, N1 represents the number of bits of some or all of the K bits, and N1 / P is a positive integer.

[0083] Through the above method, for a terminal device with sequence detection capability, the terminal device can detect the K bits carried in the ON portion of the i-th symbol group via non-OOK modulation using sequence detection alone, without simultaneously enabling envelope detection, thereby reducing the operational complexity of the terminal device. Furthermore, the terminal device can obtain all or more bits of information within the K bits without receiving all N symbol groups, reducing the time it takes to receive the wake-up signal and reducing power consumption.

[0084] In combination with the third aspect, in certain implementations of the third aspect, part or all of the other KP bits among the above K bits are carried in the ON part of the i-th symbol group, including: the above P bits are carried in the i-th symbol group through OOK modulation, and part or all of the other KP bits among the above K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

[0085] Exemplarily, the P bits are carried in the i-th symbol group through OOK modulation, and the bits other than the P bits among the K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

[0086] In which, the ON part of each symbol in the multiple symbols included in the i-th symbol group carries at least part or all of N2 / P bits of the other KP bits in the K bits, N2 represents the number of bits of some or all of the other KP bits in the K bits, and N2 / P is a positive integer.

[0087] Through the above method, for a terminal device with sequence detection capability, the terminal device can detect the P bits carried in the i-th symbol group through OOK modulation by means of envelope detection, and the terminal device can detect the KP bits carried in the ON part of the i-th symbol group through non-OOK modulation by means of sequence detection, so that all K bits of information can be obtained through the i-th symbol group, and the reception of the wake-up signal can be completed in a shorter time. In addition, the bits other than those carried in the i-th symbol group through OOK modulation are modulated into the ON part of the i-th symbol group. When the network device knows that the terminal device it serves has sequence detection capability, the network can choose to send only the i-th symbol group, and does not need to send all N symbol groups, thereby saving resource overhead for sending wake-up information and improving information transmission efficiency.

[0088] In combination with the third aspect, in certain implementations of the third aspect, the P bits are determined based on the first information, and the KP bits are preset bits.

[0089] Exemplarily, the first information is identification information of a terminal device, group identification information, subgroup identification information, or a bitmap, in which one bit corresponds to a terminal device, a group of terminal devices, or a subgroup of terminal devices.

[0090] Through the above method, for a terminal device with envelope detection capability, it is necessary to receive all N symbol groups in order to receive the complete first wake-up signal or obtain complete wake-up information. For a terminal device with sequence detection capability, since KP bits are preset bits, the terminal device knows in advance the preset bit information in the KP bits corresponding to each ON symbol and the load (overlaid) sequence corresponding to the wake-up signal on each ON symbol. Therefore, the terminal device only needs to detect whether the overlaid sequence is sent in each OOK symbol to determine whether the OOK symbol is an ON symbol. In this case, the detection performance of the terminal device with sequence detection capability can be improved, thereby improving the coverage of the network device for the terminal device with sequence detection capability within the cell.

[0091] In combination with the third aspect, in certain implementations of the third aspect, the KP bits are determined based on the first information, and the P bits are preset bits.

[0092] Through the above method, for terminal devices with sequence detection capabilities, since the P bits are preset, the terminal device knows the ON / OFF pattern within each symbol group in advance. Therefore, it can directly detect the overlaid sequence sent by the network device in the ON portion of the OOK symbol, thereby detecting the wake-up signal information carried in the ON portion. In this way, terminal devices with sequence detection capabilities do not need to detect the ON and OFF portions of an OOK symbol, but can directly perform sequence detection on the ON portion, reducing the detection complexity of the terminal device.

[0093] In combination with the third aspect, in certain implementations of the third aspect, the K bits are determined based on the first information.

[0094] Through the above method, when the above K bits are all determined based on the first information, the number of bits transmitted by the wake-up signal is the least and the transmission efficiency is the highest.

[0095] Exemplarily, if the first information is the identification information of the terminal device, the above-mentioned first wake-up signal is used to wake up the terminal device; if the first information is group identification information, the above-mentioned first wake-up signal is used to wake up the terminal device in the group indicated by the group identification information; if the first information is subgroup identification information, the above-mentioned first wake-up signal is used to wake up the terminal device in the subgroup indicated by the subgroup identification information; if the first information is a bit map, the above-mentioned first wake-up signal is used to wake up the terminal device or terminal device group or terminal device subgroup corresponding to the bit position in which all bits in the bit map have a specific value (for example, 1).

[0096] Exemplarily, the first wake-up signal may be LP-WUS or LP-SS or other power saving signals, etc., which is not limited in the present application.

[0097] In a fourth aspect, a communication method is provided. This method can be executed by a network device, or by a module (e.g., a chip or circuit) in the network device, or by a logical node, logical module, or software that implements all or part of the network device, although this application does not limit this. For ease of understanding, the following description uses execution by a network device as an example.

[0098] The method includes: the network device determines a first wake-up signal, the first wake-up signal includes K bits, the K bits are carried in N symbol groups, and the network device corresponds to multiple SSBs; the network device repeatedly sends the nth symbol group in the above-mentioned N symbol groups through multiple first monitoring opportunities, and the multiple first monitoring opportunities correspond to the multiple SSBs; the network device repeatedly sends the n+1th symbol group in the above-mentioned N symbol groups through multiple second monitoring opportunities, and the multiple second monitoring opportunities correspond to the multiple SSBs, wherein n is any value from 1 to N, and N and K are both positive integers.

[0099] Through the above method, the network device will repeatedly send each symbol group in N symbol groups at multiple monitoring times corresponding to multiple SSBs, and the terminal devices corresponding to different SSBs can complete the reception of the wake-up signal in a shorter time.

[0100] In conjunction with the fourth aspect, in certain implementations of the fourth aspect, P bits of the K bits are carried in the i-th symbol group of N symbol groups, where the i-th symbol group includes multiple symbols; wherein some or all of the K bits are carried in the ON portion of the i-th symbol group, or wherein some or all of the other KP bits of the K bits are carried in the ON portion of the i-th symbol group. The network device transmits the 1st symbol group of the N symbol groups to the j1th symbol group, where i is any value between 1 and N, and P is a positive integer.

[0101] Through the above method, when terminal devices with different signal detection and reception capabilities exist simultaneously within the coverage area of ​​the base station, the base station does not need to send different wake-up signals to the terminal devices with different detection and reception capabilities. That is, the base station can achieve the following by sending the same wake-up signal: 1) The terminal device with only envelope detection capability receives all N symbol groups to obtain the wake-up signal information; 2) The terminal device with sequence detection capability obtains the wake-up signal information by receiving any symbol group, which can reduce the operation complexity of the base station.

[0102] In combination with the fourth aspect, in certain implementations of the fourth aspect, the above-mentioned i-th symbol group is the symbol group sent first among the N symbol groups.

[0103] Specifically, the i-th symbol group being the first symbol group sent among the N symbol groups can be understood as the network device sending the i-th symbol group among the N symbol groups first in the time domain.

[0104] Specifically, the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry part of the K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry the other KP bits among the K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group can carry part of the other KP bits among the K bits, or the ON parts of the other symbol groups among the above N symbol groups except the above i-th symbol group may not carry additional bit information.

[0105] Using this method, the network device carries extra bits of information in the ON portion of the first symbol group it sends, the i-th symbol group. Accordingly, the terminal device receives the i-th symbol group first. This allows the terminal device to obtain more of the K bits in the first i-th symbol group received, thereby obtaining the required wake-up signal information in a shorter time and shutting down the receiver earlier to save power.

[0106] In combination with the fourth aspect, in certain implementations of the fourth aspect, the K bits are divided into N segments of bits, and the P bits are the i-th segment of bits in the N segments of bits.

[0107] Specifically, the above-mentioned N symbol groups carry the K bits included in the first wake-up signal, that is, K bits are carried in N symbol groups, and K bits are carried in N symbol groups including: the above-mentioned N segments of bits are carried in N symbol groups, and the N segments of bits correspond one-to-one to the N symbol groups.

[0108] Through the above method, the K bits included in the first wake-up signal can be carried on N symbol groups through OOK modulation, which can ensure that terminal devices with only envelope detection capability can also receive the complete first wake-up signal or obtain complete wake-up information.

[0109] In combination with the fourth aspect, in certain implementations of the fourth aspect, part or all of the above K bits are carried in the ON part of the i-th symbol group, including: the above P bits are carried in the i-th symbol group through OOK modulation, and part or all of the above K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

[0110] Specifically, part or all of the above K bits carried in the ON part in the i-th symbol group through non-OOK modulation include P[ bits.

[0111] Exemplarily, the P bits are carried in the i-th symbol group through OOK modulation, and the K bits are carried in the ON part in the i-th symbol group through non-OOK modulation.

[0112] Among them, the ON part of each symbol in the multiple symbols included in the i-th symbol group carries at least part or all of N1 / P bits in the K bits, N1 represents the number of bits of some or all of the K bits, and N1 / P is a positive integer.

[0113] Through the above method, for a terminal device with sequence detection capability, the terminal device can detect the K bits carried in the ON portion of the i-th symbol group via non-OOK modulation using sequence detection alone, without simultaneously enabling envelope detection, thereby reducing the operational complexity of the terminal device. Furthermore, the terminal device can obtain all or more bits of information within the K bits without receiving all N symbol groups, reducing the time it takes to receive the wake-up signal and reducing power consumption.

[0114] In combination with the fourth aspect, in certain implementations of the fourth aspect, part or all of the other KP bits among the above K bits are carried in the ON part of the i-th symbol group, including: the above P bits are carried in the i-th symbol group through OOK modulation, and part or all of the other KP bits among the above K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

[0115] Exemplarily, the P bits are carried in the i-th symbol group through OOK modulation, and the bits other than the P bits among the K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

[0116] In which, the ON part of each symbol in the multiple symbols included in the i-th symbol group carries at least part or all of N2 / P bits of the other KP bits in the K bits, N2 represents the number of bits of some or all of the other KP bits in the K bits, and N2 / P is a positive integer.

[0117] Through the above method, for a terminal device with sequence detection capability, the terminal device can detect the P bits carried in the i-th symbol group through OOK modulation by means of envelope detection, and the terminal device can detect the KP bits carried in the ON part of the i-th symbol group through non-OOK modulation by means of sequence detection, so that all K bits of information can be obtained through the i-th symbol group, and the reception of the wake-up signal can be completed in a shorter time. In addition, the bits other than those carried in the i-th symbol group through OOK modulation are modulated into the ON part of the i-th symbol group. When the network device knows that the terminal device it serves has sequence detection capability, the network can choose to send only the i-th symbol group, and does not need to send all N symbol groups, thereby saving resource overhead for sending wake-up information and improving information transmission efficiency.

[0118] In combination with the fourth aspect, in certain implementations of the fourth aspect, the P bits are determined based on the first information, and the KP bits are preset bits.

[0119] Exemplarily, the first information is identification information of a terminal device, group identification information, subgroup identification information, or a bitmap, in which one bit corresponds to a terminal device, a group of terminal devices, or a subgroup of terminal devices.

[0120] Through the above method, for a terminal device with envelope detection capability, it is necessary to receive all N symbol groups in order to receive the complete first wake-up signal or obtain complete wake-up information. For a terminal device with sequence detection capability, since KP bits are preset bits, the terminal device knows in advance the preset bit information in the KP bits corresponding to each ON symbol and the load (overlaid) sequence corresponding to the wake-up signal on each ON symbol. Therefore, the terminal device only needs to detect whether the overlaid sequence is sent in each OOK symbol to determine whether the OOK symbol is an ON symbol. In this case, the detection performance of the terminal device with sequence detection capability can be improved, thereby improving the coverage of the network device for the terminal device with sequence detection capability within the cell.

[0121] In combination with the fourth aspect, in certain implementations of the fourth aspect, the KP bits are determined based on the first information, and the P bits are preset bits.

[0122] Through the above method, for terminal devices with sequence detection capabilities, since the P bits are preset, the terminal device knows the ON / OFF pattern within each symbol group in advance. Therefore, it can directly detect the overlaid sequence sent by the network device in the ON portion of the OOK symbol, thereby detecting the wake-up signal information carried in the ON portion. In this way, terminal devices with sequence detection capabilities do not need to detect the ON and OFF portions of an OOK symbol, but can directly perform sequence detection on the ON portion, reducing the detection complexity of the terminal device.

[0123] In combination with the fourth aspect, in certain implementations of the fourth aspect, the K bits are determined based on the first information.

[0124] Through the above method, when the above K bits are all determined based on the first information, the number of bits transmitted by the wake-up signal is the least and the transmission efficiency is the highest.

[0125] Exemplarily, if the first information is the identification information of the terminal device, the above-mentioned first wake-up signal is used to wake up the terminal device; if the first information is group identification information, the above-mentioned first wake-up signal is used to wake up the terminal device in the group indicated by the group identification information; if the first information is subgroup identification information, the above-mentioned first wake-up signal is used to wake up the terminal device in the subgroup indicated by the subgroup identification information; if the first information is a bit map, the above-mentioned first wake-up signal is used to wake up the terminal device or terminal device group or terminal device subgroup corresponding to the bit position in which all bits in the bit map have a specific value (for example, 1).

[0126] Exemplarily, the first wake-up signal may be LP-WUS or LP-SS or other power saving signals, etc., which is not limited in the present application.

[0127] In a fifth aspect, a communication device is provided, comprising: a transceiver unit configured to receive the first to j2th symbol groups among N symbol groups, wherein the N symbol groups carry K bits included in a first wake-up signal, P bits of the K bits are carried in the i-th symbol group among the N symbol groups, and the i-th symbol group includes multiple symbols; wherein some or all of the K bits are carried in the ON portion of the i-th symbol group, or some or all of the other KP bits of the K bits are carried in the ON portion of the i-th symbol group. The communication device further comprises: a processing unit configured to determine whether to be awakened based on the received first to j2th symbol groups, wherein i and j2 are both any values ​​between 1 and N, and N, K, and P are all positive integers.

[0128] In combination with the fifth aspect, in certain implementations of the fifth aspect, the above-mentioned transceiver unit is used to receive the 1st symbol group to the j1th symbol group among N symbol groups, including: the above-mentioned transceiver unit is used to receive each symbol group among the 1st symbol group to the j1th symbol group through at least one monitoring opportunity among multiple monitoring opportunities, and the multiple monitoring opportunities correspond one-to-one to multiple SSBs.

[0129] For the relevant explanation and description of the beneficial effects of the fifth aspect, please refer to the description of the first aspect above.

[0130] In a sixth aspect, a communication device is provided, comprising: a processing unit configured to determine a first wake-up signal, wherein the first wake-up signal comprises K bits, the K bits being carried in N symbol groups, P bits of the K bits being carried in the i-th symbol group of the N symbol groups, the i-th symbol group comprising multiple symbols; wherein some or all of the K bits are carried in the ON portion of the i-th symbol group, or wherein some or all of the other KP bits of the K bits are carried in the ON portion of the i-th symbol group. The communication device further comprises: a transceiver unit configured to transmit the first symbol group of the N symbol groups to the j1-th symbol group, wherein i and j1 are both any values ​​between 1 and N, and N, K, and P are all positive integers.

[0131] In combination with the sixth aspect, in certain implementations of the sixth aspect, the above-mentioned communication device corresponds to multiple SSBs, and the above-mentioned transceiver unit is used to send the 1st symbol group to the j1th symbol group in the N symbol groups, including: the above-mentioned transceiver unit is used to repeatedly send the nth symbol group in the above-mentioned N symbol groups through multiple first monitoring opportunities, and the multiple first monitoring opportunities correspond to the multiple SSBs; the above-mentioned transceiver unit is also used to repeatedly send the n+1th symbol group in the above-mentioned N symbol groups through multiple second monitoring opportunities, and the multiple second monitoring opportunities correspond to the multiple SSBs, where n is any value from 1 to j1.

[0132] For the relevant explanation and description of the beneficial effects of the sixth aspect, please refer to the description of the second aspect above.

[0133] In a seventh aspect, a communication device is provided, comprising: a transceiver unit configured to receive a 1st to a j2th symbol group among N symbol groups, the N symbol groups carrying K bits included in a first wake-up signal, each of the 1st to the j2th symbol group being received through at least one monitoring opportunity among a plurality of monitoring opportunities, the plurality of monitoring opportunities corresponding to a plurality of SSBs. The communication device further comprises: a processing unit configured to determine whether to be awakened based on the received 1st to the j2th symbol group, wherein j2 is any value between 1 and N, and N and K are both positive integers.

[0134] For the relevant explanation and description of the beneficial effects of the seventh aspect, please refer to the description of the third aspect above.

[0135] In the eighth aspect, a communication device is provided, which includes: a processing unit for determining a first wake-up signal, the first wake-up signal including K bits, the K bits carried in N symbol groups, and the network device corresponds to multiple SSBs; the communication device also includes: a transceiver unit for repeatedly sending the nth symbol group in the above-mentioned N symbol groups through multiple first monitoring opportunities, and the multiple first monitoring opportunities correspond to the multiple SSBs; the transceiver unit is also used to repeatedly send the n+1th symbol group in the above-mentioned N symbol groups through multiple second monitoring opportunities, and the multiple second monitoring opportunities correspond to the multiple SSBs, wherein n is any value from 1 to N, and N and K are both positive integers.

[0136] For the relevant explanation and description of the beneficial effects of the eighth aspect, please refer to the description of the fourth aspect above.

[0137] In the ninth aspect, a communication device is provided, comprising at least one processor, wherein the at least one processor is used to, by executing a computer program or instruction or through a logic circuit, enable the communication device to perform the method described in the first aspect and any possibility of the first aspect, or enable the communication device to perform the method described in the second aspect and any possibility of the second aspect, or enable the communication device to perform the method described in the third aspect and any possibility of the third aspect, or enable the communication device to perform the method described in the fourth aspect and any possibility of the fourth aspect.

[0138] In a possible implementation, the communication device further includes a memory for storing the computer program or instruction.

[0139] In a possible implementation, the communication device further includes a communication interface, which is used to input and / or output signals.

[0140] In the tenth aspect, a communication device is provided, comprising a logic circuit and an input / output interface, the input / output interface being used to input and / or output signals, the logic circuit being used to execute the method described in the first aspect and any possibility of the first aspect, or the method described in the second aspect and any possibility of the second aspect, or the method described in the third aspect and any possibility of the third aspect, or the method described in the fourth aspect and any possibility of the fourth aspect.

[0141] In a possible implementation, the communication device may be a chip or a chip system.

[0142] In the eleventh aspect, a computer-readable storage medium is provided, on which a computer program or instruction is stored. When the computer program or the instruction is run on a computer, the method described in the first aspect and any possibility of the first aspect is executed, or the method described in the second aspect and any possibility of the second aspect is executed, or the method described in the third aspect and any possibility of the third aspect is executed, or the method described in the fourth aspect and any possibility of the fourth aspect is executed.

[0143] In the twelfth aspect, a computer program product is provided, comprising instructions, which, when executed on a computer, cause the method described in the first aspect and any possibility of the first aspect to be executed, or cause the method described in the second aspect and any possibility of the second aspect to be executed, or cause the method described in the third aspect and any possibility of the third aspect to be executed, or cause the method described in the fourth aspect and any possibility of the fourth aspect to be executed.

[0144] In the thirteenth aspect, a communication system is provided, which includes the above-mentioned terminal device and the above-mentioned network device, the terminal device is used to execute the method described in the above-mentioned first aspect, third aspect and any possible one of the first and third aspects, and the network device is used to execute the method described in the above-mentioned second aspect, fourth aspect and any possible one of the second and fourth aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0145] FIG1 is a schematic diagram of a communication system 100 to which the technical solution of the present application can be applied.

[0146] FIG2 is a schematic diagram of triggering a terminal device to work using a first module and a second module.

[0147] FIG3 is a schematic diagram of an interaction flow of a communication method 300 provided in an embodiment of the present application.

[0148] FIG4 is a schematic diagram of an example of K bits carried in N symbol groups provided by an embodiment of the present application.

[0149] FIG5 is a schematic diagram of another example of K bits carried in N symbol groups provided by an embodiment of the present application.

[0150] FIG6 is a schematic diagram of an interaction flow of a communication method 400 provided in an embodiment of the present application.

[0151] FIG7 is a schematic block diagram of a communication device 700 applicable to an embodiment of the present application.

[0152] FIG8 is a schematic block diagram of a communication device 800 applicable to an embodiment of the present application.

[0153] FIG9 is a schematic block diagram of a communication device 900 applicable to an embodiment of the present application. DETAILED DESCRIPTION

[0154] First, a communication system to which the embodiments of the present application are applicable is described.

[0155] FIG1 is a schematic diagram of a communication system 100 applicable to an embodiment of the present application. As shown in FIG1 , the communication system 100 includes: a network device 110 and a terminal device 120 .

[0156] The terminal device 120 is a device with wireless transceiver functions, which can be referred to as user equipment (UE), access terminal, subscriber unit, user station, mobile station, remote station, remote terminal, mobile device, user terminal, wireless communication device, user agent or user device. The terminal device 120 may also be a satellite phone, a cellular phone, a smart phone, a wireless data card, a wireless modem, a machine type communication device, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), a customer-premises equipment (CPE), a smart point of sale (POS), a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, an in-vehicle device, a communication device carried on a high-altitude aircraft, a wearable device, a drone, a robot, a terminal in device-to-device (D2D) communication, a terminal in vehicle-to-everything (V2X), a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a remote medical device, or a similar device. This application does not limit the wireless terminals in medical, smart grid, transportation safety, smart city, smart home, or terminal devices in communication networks evolved after 5G.

[0157] The communication device used to implement the functions of the terminal device 120 can be a terminal device, or a device that can support the terminal device to implement the functions, such as a chip system. The device can be installed in the terminal device or used in conjunction with the terminal device. In this application, the chip system can be composed of a chip or include a chip and other discrete devices.

[0158] The network device 110 is a device with wireless transceiver functions, which is used to communicate with the terminal device 120. The network device 110 can be a node in the radio access network (RAN), which can be called a base station or a RAN node. It can be an evolved Node B (eNB or eNodeB) of long term evolution (LTE); or a base station of a 5G network such as a gNodeB (gNB) or a base station in a public land mobile network (PLMN) evolved after 5G, a broadband network gateway (BNG), an aggregation switch, or a third generation partnership project (3GPP) access device.

[0159] The RAN can be configured as a RAN defined by the 3GPP protocol, an open radio access network (O-RAN), or a cloud radio access network (C-RAN). The network device 110 can also include various forms of base stations, such as macro base stations, micro base stations (also known as small stations), relay stations, transmission reception points (TRPs), transmitting points (TPs), mobile switching centers, and devices that perform base station functions in device-to-device (D2D), vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, network devices in non-terrestrial networks (NTNs), etc., without specific limitation.

[0160] The network device 110 may also be a network element or module that can implement some functions of the base station. For example, the network device 110 may be one or more of the following: a centralized unit (CU), a distributed unit (DU), or a radio unit (RU). The functions of the CU and DU may be implemented by different network elements, or simultaneously by the baseband unit (BBU) of the base station. Optionally, the CU may be further separated into a CU-control plane (CP) and a CU-user plane (UP). The functions of the RU may be implemented by the radio frequency equipment of the base station. For example, the radio frequency equipment of the base station may be a radio frequency remote processing unit (RRU), a pico remote radio unit (pRRU), an active antenna unit (AAU), or other units, modules, or devices with radio frequency processing functions. The communication interface protocol between the BBU and the radio frequency equipment can be a common public radio interface (CPRI) interface protocol, an enhanced common public radio interface (eCPRI) interface protocol, or a fronthaul interface protocol between the DU and RU in the O-RAN system, etc., without limitation.

[0161] The communication device used to implement the functions of the network device 110 can be a network device, or a device that can support the network device to implement the functions, such as a chip system. The device can be installed in the network device or used in conjunction with the network device. The chip system in the embodiment of the present application can be composed of a chip, or it can include a chip and other discrete devices.

[0162] It should be noted that the above-mentioned communication system 100 may include any number of network devices 110 and / or any number of terminal devices 120, and this application does not limit this.

[0163] In the embodiment of the present application, the communication system 100 may be the following systems: a long term evolution (LTE) system, an LTE frequency division duplex (FDD) system, an LTE time division duplex (TDD) system, a fifth generation (5G) communication system, a future communication system, a high altitude platform station (HAPS) communication system, a non-terrestrial network (NTN) communication system, etc. The communication system 100 may also be a terrestrial cellular communication system, a D2D communication system, a V2X communication system, an M2M communication system, a machine type communication (MTC), an Internet of Things (IoT) communication system, a vehicle network communication system, or other communication systems.

[0164] The communication system 100 may also be a single-hop relay system or a multi-hop relay system, an integrated access and backhaul (IAB) system, a reconfigurable intelligent surface (RIS) communication system, etc., without limitation.

[0165] Next, a brief description of the technical contents involved in the embodiments of this application is given.

[0166] Whether the process of receiving paging is executed in the idle state / inactive state, or data is received in the connected state, the terminal device 120 uses the same receiving module (or receiver, or receiving circuit) for reception. In this application, the circuit that completes these functions (or performs related steps) can be referred to as the first module. The first module is named only for distinction, and its specific naming does not limit the scope of protection of this application. For example, the first module can be a first circuit or a main circuit.

[0167] The process of terminal device 120 receiving a signal using the first module can be referred to as the process of signal transmission on a link (for distinction, referred to as the first link). The first link represents a connection between terminal device 120 and network device 110 and is a logical concept rather than a physical entity. The first link can also be referred to as the primary link.

[0168] The power consumption of the terminal device 120 performing the paging reception process through the first module is relatively high. For example, the terminal device 120 first uses the first module to receive downlink signals, then performs blind detection on the physical downlink control channel (PDCCH), and finally decodes the received physical downlink shared channel (PDSCH), all of which will result in high power consumption. Due to the relatively complex circuit structure of the first module, its baseline power consumption during operation is also relatively high.

[0169] In order to reduce the high power consumption caused by the terminal device 120 executing the process of receiving paging through the first module, the terminal device 120 can use a separate low-power small circuit to receive a wake-up signal (wake up signal / radio, WUS / WUR) or a low-power wake-up signal (low power wake up signal, LP-WUS). The above-mentioned low-power small circuit can be implemented using a separate small circuit or chip with a simple structure, so that the power consumption of the low-power small circuit can be lower. Without loss of generality, the above-mentioned low-power small circuit can also be implemented as part of the functional module of the main chip, and is not necessarily a physically different circuit.

[0170] In one possible implementation, the low-power small circuit can also be a low-power radio (LR), a wake-up receiver (WUR), a wake-up radio (WUR), an auxiliary circuit, etc. This application does not limit the specific naming of the low-power small circuit. In this application, the low-power small circuit can be referred to as the second module. It can be understood that the second module is only named for distinction, and its specific naming does not limit the scope of protection of this application. For example, the second module can also be a second circuit or a wake-up circuit.

[0171] Similarly, the process of the terminal device 120 using the second module to receive the signal can be referred to as the process of transmitting the signal on the link (for distinction, denoted as the second link). The second link represents a connection relationship between the terminal device 120 and the network device 110. It is a logical concept, not a physical entity. The wake-up signal is only an example name, and this application does not limit its naming.

[0172] Figure 2 is a schematic diagram of an example in which the terminal device 120 receives a wake-up signal through the second module. As shown in Figure 2, the terminal device 120 receives a signal through the second module. If the wake-up signal associated with itself is not detected, the second module continues to be used to receive the signal, and the first module may be in a closed state (or a sleeping state); if the wake-up signal associated with itself is detected, the wake-up of the first module is triggered, that is, the first module is in / switched to an open state (or a working state, or an active state). After the first module is turned on, the terminal device 120 executes the PDCCH monitoring process. The monitored PDCCH may be a PDCCH for scheduling data transmission, such as a PDCCH carrying any of the following downlink control information (DCI): DCI format 0_0, DCI format 0_1, DCI format0_2, DCI format 1_0, DCI format 1_1, DCI format 1_2, etc.

[0173] To reduce power consumption in the low-power small circuit, network device 110 typically uses simple modulation methods such as on-off keying (OOK) to modulate the wake-up signal. Accordingly, the low-power small circuit in terminal device 120 uses envelope detection to receive the wake-up signal. Each information bit of the wake-up signal is modulated by network device 110 onto an OOK symbol. To receive the wake-up signal, the terminal device must receive a number of OOK symbols equal to the number of information bits in the wake-up signal.

[0174] The present application can provide a communication method 300, in which the network device can modulate the information bits included in the wake-up signal onto a smaller number of OFDM symbols or OOK symbols, so that the terminal device can complete the reception of the wake-up signal in a shorter time, thereby turning off the receiver in advance to save power consumption.

[0175] Figure 3 is a schematic flow chart of a communication method 300 provided in an embodiment of the present application. In this embodiment, the method is illustrated by taking the terminal device and the network device as the execution subject of the interactive diagram as an example, but the present application does not limit the execution subject of the interactive diagram. For example, the terminal device in Figure 3 can also be a chip, a chip system, or a processor that supports the method that can be implemented by the terminal device, or a logic module or software that can implement all or part of the terminal device; the network device can also be a chip, a chip system, or a processor that supports the method that can be implemented by the network device, or a logic module or software that can implement all or part of the network device. When the method is executed by a chip, a chip system, a processor, a logic module or software, etc., the sending and receiving in the following steps can be understood as communication implemented through input / output interfaces, pins or circuits, etc.

[0176] The communication method 300 may include the following steps:

[0177] In step S310 , the network device determines a first wake-up signal, where the first wake-up signal includes K bits, and the K bits are carried in N symbol groups.

[0178] Specifically, there are two ways to carry K bits in N symbol groups:

[0179] Mode 1A: P of the K bits are carried in the i-th symbol group of N symbol groups, and some or all of the K bits are carried in the ON portion of the i-th symbol group. The i-th symbol group includes multiple symbols, where i is any value from 1 to N.

[0180] For example, as shown in Figure 4, in order to facilitate the description of the technical solution of the present application, Figure 4 takes K=12 and N=3 as an example for illustration, but the present application does not limit the specific values ​​of K and N.

[0181] Specifically, K bits can be divided into N segments of bits, that is, 12 bits can be divided into 3 segments of bits, namely the first segment of bits, the second segment of bits, and the third segment of bits. Each segment of bits can include P bits, that is, 4 bits.

[0182] The first segment of bits can be carried in the first symbol group, and the second and third segment of bits can also be carried in the first symbol group; the second segment of bits can be carried in the second symbol group, and the first segment of bits and the above-mentioned third segment of bits can also be carried in the second symbol group; the third segment of bits can be carried in the third symbol group, and the first and second segment of bits can also be carried in the third symbol group. The above-mentioned i-th symbol group can be any one of the first symbol group, the second symbol group, or the third symbol group, and this application does not limit this.

[0183] Exemplarily, the present application is explained by taking the multiple symbols included in the i-th symbol group as OOK symbols as an example. Specifically, there are two ways of expressing that the multiple symbols included in the i-th symbol group are OOK symbols: Way one, the multiple symbols included in the i-th symbol group are multiple OOK symbols, and the multiple OOK symbols correspond one-to-one to the multiple symbols and each OOK symbol in the multiple OOK symbols includes an ON part and an OFF part; Way two, the multiple symbols included in the i-th symbol group are multiple OOK symbols, and each symbol in the multiple symbols includes an ON symbol of the OOK symbol and an OFF symbol of the OOK symbol. The embodiment of the present application is written in the expression of Way one, but the embodiment of the present application can also be rewritten in the expression of Way two without any doubt. In addition, the present application does not limit the multiple symbols included in the i-th group to be OOK symbols. For example, the multiple symbols included in the i-th symbol group may also be orthogonal frequency division multiplexing (OFDM) symbols, and one OFDM symbol may carry one OOK symbol, two OOK symbols, or four OOK symbols.

[0184] The first segment of bits is carried in the first symbol group using OOK modulation. When Manchester encoding is used, the four bits in the first segment are carried on four OOK symbols, with each bit carried on one OOK symbol. This means that the first symbol group includes four OOK symbols: symbol #1, symbol #2, symbol #3, and symbol #4. Each OOK symbol consists of an ON segment and an OFF segment. Assuming that the ON+OFF portion of each OOK symbol can be encoded as 10, representing bit 0, then the OFF+ON portion of each OOK symbol can be encoded as 01, representing bit 1. The four bits in the first segment are 0010, and the four OOK symbols carrying 0010 are symbol #1 (ON+OFF), symbol #2 (ON+OFF), symbol #3 (OFF+ON), and symbol #4 (ON+OFF). Furthermore, the K bits mentioned above, such as the first, second, and third segments, can also be carried in the ON segment of the first symbol group using non-OOK modulation.

[0185] Exemplarily, if it is necessary to carry all the bits in the first segment of bits, the second segment of bits, and the third segment of bits in the first symbol group through non-OOK modulation, the ON part of each symbol in the first symbol group carries at least K / P bits, where K is the number of all bits in the first segment of bits, the second segment of bits, and the third segment of bits; if it is necessary to carry part of the bits in the first segment of bits, the second segment of bits, and the third segment of bits in the first symbol group through non-OOK modulation, the ON part of each symbol in the first symbol group carries at least N1 / P bits, where N1 is the number of part of the bits in the first segment of bits, the second segment of bits, and the third segment of bits.

[0186] Here, taking the need to carry all bits of the first segment of bits, the second segment of bits, and the third segment of bits in the first symbol group through non-OOK modulation as an example, how to carry all bits of the first segment of bits, the second segment of bits, and the third segment of bits in the first symbol group through non-OOK modulation is described. The network device can carry all bits of the first segment of bits, the second segment of bits, and the third segment of bits in the ON part of each symbol in the first symbol group through the correspondence between the overlaid sequence and the bit information shown in Table 1 below. The network device can modulate the bit information modulated in the ON part of each symbol in the first symbol group using the overlaid sequence corresponding to the bit information in Table 1 below. For example, if it is necessary to carry all bits of the first segment of bits, the second segment of bits, and the third segment of bits in the first symbol group through non-OOK modulation, the ON part of each symbol in the first symbol group carries at least 3 bits, and if the network device needs to carry the bit information 001 in the ON part of symbol #1 in the first symbol group, then the network device can use seq2 for modulation.

[0187] Table 1

[0188] The overlaid sequence Seq1 shown in Table 1 above is used to modulate the three bits of information 000, the overlaid sequence Seq2 is used to modulate the three bits of information 001, the overlaid sequence Seq3 is used to modulate the three bits of information 010, the overlaid sequence Seq4 is used to modulate the three bits of information 011, the overlaid sequence Seq5 is used to modulate the three bits of information 100, the overlaid sequence Seq6 is used to modulate the three bits of information 101, the overlaid sequence Seq7 is used to modulate the three bits of information 110, and the overlaid sequence Seq8 is used to modulate the three bits of information 111. The correspondence between the overlaid sequence and the bit information shown in Table 1 above is only an example, and this application is not limited to this.

[0189] The above describes how the first segment of bits in N segments of bits is carried in the first symbol group via OOK modulation, and how the first, second, and third segments of bits are carried in the first symbol group via non-OOK modulation. Similarly, the second segment of bits in the above-mentioned N segments of bits is carried in the second symbol group via OOK modulation, and the first, second, and third segments of bits are carried in the second symbol group via non-OOK modulation. The specific carrying method is similar to the carrying method for the first symbol group in the above-mentioned method 1A, that is, the first segment of bits in the first symbol group in the above-mentioned method 1A is replaced by the second segment of bits and carried via OOK modulation. This description will not be repeated here. Similarly, the third segment of the N segments of bits is carried in the third symbol group through OOK modulation, and the first segment of bits, the second segment of bits, and the third segment of bits are carried in the third symbol group through non-OOK modulation. The specific carrying method is similar to the carrying method of the first symbol group in the above-mentioned method 1A, that is, the third segment of bits replaces the first segment of bits in the first symbol group in the above-mentioned method 1A and is carried through OOK modulation. It will not be repeated here.

[0190] One implementation method is that part or all of the bits in the first segment of bits, the second segment of bits, and the third segment of bits are carried in the first symbol group through non-OOK modulation, and part or all of the bits in the first segment of bits, the second segment of bits, and the third segment of bits are carried in the second symbol group through non-OOK modulation, and are independent of each other. For example, part of the bits in the first segment of bits, the second segment of bits, and the third segment of bits are carried in the first symbol group through non-OOK modulation, all of the bits in the first segment of bits, the second segment of bits, and the third segment of bits are carried in the second symbol group through non-OOK modulation, and part of the bits in the first segment of bits, the second segment of bits, and the third segment of bits are carried in the third symbol group through non-OOK modulation. This application does not limit this.

[0191] Another implementation method is that the above-mentioned first segment of bits is carried in the first symbol group through OOK modulation, and some or all of the bits in the above-mentioned first segment of bits, second segment of bits, and third segment of bits are not carried in the ON part of the first symbol group through non-OOK modulation; or, the above-mentioned second segment of bits is carried in the second symbol group through OOK modulation, and some or all of the bits in the above-mentioned first segment of bits, second segment of bits, and third segment of bits are not carried in the ON part of the second symbol group through non-OOK modulation; or, the above-mentioned third segment of bits is carried in the third symbol group through OOK modulation, and some or all of the bits in the above-mentioned first segment of bits, second segment of bits, and third segment of bits are not carried in the ON part of the third symbol group through non-OOK modulation.

[0192] Mode 2A: P bits of the K bits are carried in the i-th symbol group of the N symbol groups, and some or all of the other KP bits of the K bits are carried in the ON portion of the i-th symbol group. The i-th symbol group includes multiple symbols, where i is any value from 1 to N.

[0193] For example, as shown in Figure 5, in order to facilitate the description of the technical solution of the present application, Figure 5 also takes K=12 and N=3 as an example for description, but the present application does not limit the specific values ​​of K and N.

[0194] Specifically, K bits can be divided into N segments of bits, that is, 12 bits can be divided into 3 segments of bits, namely the first segment of bits, the second segment of bits, and the third segment of bits. Each segment of bits can include P bits, that is, 4 bits.

[0195] The first segment of bits can be carried in the first symbol group, and the second and third segment of bits can also be carried in the first symbol group; the second segment of bits can be carried in the second symbol group, and the first segment of bits and the above-mentioned third segment of bits can also be carried in the second symbol group; the third segment of bits can be carried in the third symbol group, and the first and second segment of bits can also be carried in the third symbol group. The above-mentioned i-th symbol group can be any one of the first symbol group, the second symbol group, or the third symbol group, and this application does not limit this.

[0196] Exemplarily, the present application is explained by taking the multiple symbols included in the i-th symbol group as OOK symbols as an example. Specifically, there are two ways of expressing that the multiple symbols included in the i-th symbol group are OOK symbols: Way 1, the multiple symbols included in the i-th symbol group are multiple OOK symbols, and the multiple OOK symbols correspond one-to-one to the multiple symbols and each OOK symbol in the multiple OOK symbols includes an ON part and an OFF part; Way 2, the multiple symbols included in the i-th symbol group are multiple OOK symbols, and each symbol in the multiple symbols includes an ON symbol of the OOK symbol and an OFF symbol of the OOK symbol. The embodiment of the present application is written in the expression of Way 1, but the embodiment of the present application can also be rewritten in the expression of Way 2 without any doubt. In addition, the present application does not limit the multiple symbols included in the i-th group to be OOK symbols. For example, the multiple symbols included in the i-th symbol group may also be orthogonal frequency division multiplexing (OFDM) symbols, and one OFDM symbol may carry one OOK symbol, two OOK symbols, or four OOK symbols.

[0197] The first segment of bits is carried in the first symbol group using OOK modulation. When Manchester encoding is used, the four bits in the first segment need to be carried on four OOK symbols, with each bit carried on one OOK symbol. That is, the first symbol group includes four OOK symbols: symbol #1, symbol #2, symbol #3, and symbol #4. Each OOK symbol includes an ON segment and an OFF segment. Assuming that the ON+OFF portion of each OOK symbol can be encoded as 10, representing bit 0, then the OFF+ON portion of each OOK symbol can be encoded as 01, representing bit 1. The four bits in the first segment of bits are 0010. The four OOK symbols carrying 0010 are symbol #1 (ON+OFF), symbol #2 (ON+OFF), symbol #3 (OFF+ON), and symbol #4 (ON+OFF). In addition, the other KP bits among the above K bits, such as the second and third segments of bits except the first segment of bits in the above N segments of bits, can also be carried in the ON part of the first symbol group through non-OOK modulation.

[0198] Exemplarily, if it is necessary to carry all the bits of the second and third segments of bits in the first symbol group through non-OOK modulation, the ON part of each symbol in the first symbol group carries at least (KP) / P bits, and KP is the number of all bits of the second and third segments of bits except the first segment of bits in the N segments of bits; if it is necessary to carry part of the bits of the second and third segments of bits in the first symbol group through non-OOK modulation, the ON part of each symbol in the first symbol group carries at least N2 / P bits, and N2 is the number of part of the bits in the second and third segments of bits.

[0199] Here, taking the need to carry all bits in the second and third segments of bits in the first symbol group through non-OOK modulation as an example, how to carry all bits in the second and third segments of bits in the first symbol group through non-OOK modulation is described. The network device can carry all bits in the second and third segments of bits in the ON part of each symbol in the first symbol group through the correspondence between the overlaid sequence and the bit information shown in Table 2 below. The network device can modulate the bit information modulated in the ON part of each symbol in the first symbol group using the overlaid sequence corresponding to the bit information in Table 2 below. For example, if it is necessary to carry all bits in the second and third segments of bits in the first symbol group through non-OOK modulation, the ON part of each symbol in the first symbol group carries at least 2 bits, and if the network device needs to carry bit information 01 in the ON part of symbol #1 in the first symbol group, then the network device can use seq2 for modulation.

[0200] Table 2

[0201] The overlaid sequence Seq1 shown in Table 2 is used to modulate the two-bit information 00, the overlaid sequence Seq2 is used to modulate the two-bit information 01, the overlaid sequence Seq3 is used to modulate the two-bit information 10, and the overlaid sequence Seq4 is used to modulate the two-bit information 11. The correspondence between the overlaid sequences and the bit information shown in Table 2 is only an example and is not limited in this application.

[0202] The above describes how the first segment of bits in N segments of bits is carried in the first symbol group via OOK modulation, and how the second and third segments of bits are carried in the first symbol group via non-OOK modulation. Similarly, the second segment of bits in the above N segments of bits is carried in the second symbol group via OOK modulation, and the first and third segments of bits are carried in the second symbol group via non-OOK modulation. The specific carrying method is similar to the carrying method for the first symbol group in the above method 2A, that is, the first segment of bits in the first symbol group in the above method 2A is replaced by the second segment of bits and carried via OOK modulation, and the second and third segments of bits in the first symbol group in the above method 2A, which are carried via overlaid modulation, are replaced by the first and third segments of bits. This description will not be repeated here. Similarly, the third segment of the N segments of bits is carried in the third symbol group through OOK modulation, and the first segment of bits and the second segment of bits are carried in the third symbol group through non-OOK modulation. The specific carrying method is similar to the carrying method of the first symbol group in the above method 2A, that is, the third segment of bits replaces the first segment of bits in the first symbol group in the above method 2A and is carried through OOK modulation, and the first segment of bits and the second segment of bits replace the second and third segments of bits in the first symbol group in the above method 2A carried through overlaid modulation. It will not be repeated here.

[0203] One implementation method is that part or all of the bits in the second and third segments of bits are carried in the first symbol group through non-OOK modulation, part or all of the bits in the first and third segments of bits are carried in the second symbol group through non-OOK modulation, and the first and second segments of bits are carried in the third symbol group through non-OOK modulation, which are independent of each other. For example, part of the bits in the second and third segments of bits are carried in the first symbol group through non-OOK modulation, all of the bits in the first and third segments of bits are carried in the second symbol group through non-OOK modulation, and part of the bits in the first and second segments of bits are carried in the third symbol group through non-OOK modulation. This application does not limit this.

[0204] Another implementation method is that the above-mentioned first segment of bits is carried in the first symbol group through OOK modulation, and part or all of the bits in the above-mentioned second segment of bits and third segment of bits are not carried in the ON part of the first symbol group through non-OOK modulation; or, the above-mentioned second segment of bits is carried in the second symbol group through OOK modulation, and part or all of the bits in the above-mentioned first segment of bits and third segment of bits are not carried in the ON part of the second symbol group through non-OOK modulation; or, the above-mentioned third segment of bits is carried in the third symbol group through OOK modulation, and part or all of the bits in the above-mentioned first segment of bits and second segment of bits are not carried in the ON part of the third symbol group through non-OOK modulation.

[0205] Specifically, the present application may also provide the following two methods for determining the above K bits:

[0206] Method 1B (applicable to the above-mentioned method 1A and the above-mentioned method 2A): K bits can be determined based on the first information, and the first information is the identification information of the terminal device or the group identification information or the sub-group identification information or a bit map, and one bit in the bit map corresponds to a terminal device or a group of terminal devices or a sub-group of terminal devices. Exemplarily, if the first information is the identification information of the terminal device, the above-mentioned first wake-up signal is used to wake up the terminal device; if the first information is the group identification information, the above-mentioned first wake-up signal is used to wake up the terminal devices in the group indicated by the group identification information; if the first information is the sub-group identification information, the above-mentioned first wake-up signal is used to wake up the terminal devices in the sub-group indicated by the sub-group identification information; if the first information is a bit map, the above-mentioned first wake-up signal is used to wake up the terminal device or the terminal device group or the terminal device sub-group corresponding to the bit position in which all bits in the bit map have a specific value (for example, 1).

[0207] Method 2B (mainly applicable to the above-mentioned method 1B) includes the following two branches:

[0208] 1) P bits among the K bits are determined based on the first information, and the other KP bits among the K bits except the P bits are preset bits.

[0209] Exemplarily, in Figure 5, the P bits (i.e., the first segment bits) carried in the first symbol group by OOK modulation are determined based on the first information, but the other KP bits of the ON part in the first symbol group carried by non-OOK modulation are preset bits.

[0210] Optionally, the other KP bits except the P bits in the K bits may also be obtained according to a preset formula, or the other KP bits except the P bits in the K bits may also be check bits of the P bits, etc.

[0211] 2) P bits among the K bits are preset bits, and the other KP bits except the P bits among the K bits are determined based on the above-mentioned first information.

[0212] Exemplarily, in Figure 5, the P bits (i.e., the first segment bits) carried in the first symbol group by OOK modulation are preset bits, but the other KP bits of the ON part in the first symbol group carried by non-OOK modulation are determined based on the above-mentioned first information.

[0213] Optionally, P bits among the K bits may be obtained according to a preset formula, or the P bits among the K bits may be check bits of KP bits other than the P bits among the K bits.

[0214] In step S312, the network device sends the first symbol group to the j1th symbol group of the N symbol groups. Correspondingly, the terminal device receives the first symbol group to the j2th symbol group of the N symbol groups from the network device.

[0215] Exemplarily, the j1 is any value from 1 to N, and the j2 is any value from 1 to j1.

[0216] In step S314 , the terminal device determines whether it is awakened based on the 1st symbol group to the j2th symbol group received from the network device.

[0217] It should be noted that as long as the terminal device can determine whether it needs to be awakened based on the received symbol group, the terminal device does not have to receive all symbol groups sent by the network device, that is, the terminal device can receive some symbol groups sent by the network device.

[0218] The terminal device can determine whether the first wake-up signal is associated with itself based on the first to j2th symbol groups received from the network device. If the first wake-up signal is associated with itself, it triggers the wake-up of the first module; if the first wake-up signal is not associated with itself, it continues to use the second module to monitor signals.

[0219] Exemplarily, the first wake-up signal may be LP-WUS or the first wake-up signal may be a low power synchronization signal (LP-SS), etc., which is not limited in the present application.

[0220] Through the above-mentioned communication method 300, the network device can modulate more bit information onto a smaller number of symbols, so that the terminal device can complete the reception of the wake-up signal in a shorter time, thereby turning off the receiver in advance to save power consumption.

[0221] The network device may need to use multiple beams to send the first wake-up signal, with the multiple beams covering different areas to achieve full coverage of the cell where the network device is located. Generally speaking, after the network device sends the first wake-up signal in one downlink beam, it will send the first wake-up signal in the next downlink beam until the network device has sent the first wake-up signal in each beam in the multi-beam. However, this method may cause terminal devices in certain beam coverage areas to wait for a long time before receiving the first wake-up signal.

[0222] Based on this, the present application can provide a communication method 400, which can reduce the waiting time for terminal devices in different beam coverage areas to receive wake-up signals, so that the receiver can be shut down in advance to save power consumption.

[0223] Figure 6 is a schematic flow chart of a communication method 400 provided in an embodiment of the present application. In this embodiment, the method is illustrated by taking the terminal device and the network device as the execution subject of the interactive diagram as an example, but the present application does not limit the execution subject of the interactive diagram. For example, the terminal device in Figure 6 can also be a chip, a chip system, or a processor that supports the method that can be implemented by the terminal device, or a logic module or software that can implement all or part of the terminal device; the network device can also be a chip, a chip system, or a processor that supports the method that can be implemented by the network device, or a logic module or software that can implement all or part of the network device. When the method is executed by a chip, a chip system, a processor, a logic module or software, etc., the sending and receiving in the following steps can be understood as communication implemented through input / output interfaces, pins or circuits, etc.

[0224] The communication method 400 may include the following steps:

[0225] In step S410 , the network device determines a first wake-up signal, where the first wake-up signal includes K bits, and the K bits are carried in N symbol groups.

[0226] In step S412, the network device repeatedly sends the nth symbol group among the N symbol groups through multiple first monitoring opportunities. Accordingly, the terminal device receives the nth symbol group among the N symbol groups through at least one first monitoring opportunity among the multiple first monitoring opportunities.

[0227] It should be noted that the network device is configured with multiple reference signals, each of which can be identified by a reference signal index. For example, the reference signal configured by the network device is SSB, and the multiple SSBs are identified as SSB0, SSB1, SSB2, SSB3...

[0228] Exemplarily, the above n is any value from 1 to N.

[0229] Specifically, the above-mentioned multiple first monitoring opportunities correspond one-to-one to multiple SSBs configured by the network device.

[0230] The network device repeatedly sends the nth symbol group among N symbol groups through multiple first monitoring opportunities, specifically including: the network device sends the nth symbol group through the first first monitoring opportunity among multiple first monitoring opportunities; the network device sends the nth symbol group through the second first monitoring opportunity among multiple first monitoring opportunities;…; the network device sends the nth symbol group through the last first monitoring opportunity among multiple first monitoring opportunities.

[0231] The above-mentioned multiple first monitoring opportunities correspond one-to-one to multiple SSBs configured by the network device, which means that the first wake-up signal sent at the first monitoring time and the corresponding SSB have a quasi co-location (QCL) relationship.

[0232] In step S414, the network device repeatedly sends the n+1th symbol group among the N symbol groups through multiple second monitoring opportunities. Accordingly, the terminal device receives the n+1th symbol group among the N symbol groups through at least one second monitoring opportunity among the multiple second monitoring opportunities.

[0233] Specifically, the above-mentioned multiple second monitoring opportunities correspond one-to-one to multiple SSBs configured by the network device.

[0234] The above-mentioned multiple second monitoring opportunities correspond one-to-one to multiple SSBs configured by the network device, which means that the first wake-up signal sent at a certain second monitoring time and the corresponding SSB have a QCL relationship.

[0235] The network device repeatedly sends the n+1th symbol group among N symbol groups through multiple second monitoring opportunities, specifically including: the network device sends the n+1th symbol group through the first second monitoring opportunity among multiple second monitoring opportunities; the network device sends the n+1th symbol group through the second second monitoring opportunity among multiple second monitoring opportunities;…; the network device sends the n+1th symbol group through the last second monitoring opportunity among multiple second monitoring opportunities.

[0236] Optionally, the network may send the 1st symbol group to the j1th symbol group among the N symbol groups. Correspondingly, the terminal device receives the 1st symbol group to the j2th symbol group among the N symbol groups from the network device.

[0237] Exemplarily, the j1 is any value from 1 to N, and the j2 is any value from 1 to j1.

[0238] In step S416, the terminal device determines whether it is awakened based on the 1st symbol group to the j2th symbol group received from the network device.

[0239] It should be noted that as long as the terminal device can determine whether it needs to be awakened based on the received symbol group, the terminal device does not have to receive all symbol groups sent by the network device, that is, the terminal device can receive some symbol groups sent by the network device.

[0240] The terminal device can determine whether the first wake-up signal is associated with itself based on the first to j2th symbol groups received from the network device. If the first wake-up signal is associated with itself, it triggers the wake-up of the first module; if the first wake-up signal is not associated with itself, it continues to use the second module to monitor signals.

[0241] Through the above communication method 400, the network device can poll and send the first symbol group on multiple beams, then poll and send the second symbol group on multiple bus trees, and so on.

[0242] The above-mentioned communication method 500 can enable the terminal device to determine in advance whether the received wake-up signal is associated with itself based on the acquired partial bit information, which can reduce the waiting time for terminal devices in different beam coverage areas to receive the wake-up signal, thereby achieving the purpose of saving power consumption.

[0243] Optionally, the K bits in the above-mentioned communication method 500 can also be carried in N symbol groups through method 1A and method 2A in the above-mentioned communication method 400. The specific carrying method can refer to method 1A and method 2A in the above-mentioned communication method 400, and will not be repeated here.

[0244] Optionally, in the communication method 500 , the K bits may be determined by using the method 1B and the method 2B in the communication method 400 , which will not be described in detail here.

[0245] Finally, the device embodiment of the embodiment of the present application is introduced.

[0246] To implement the various functions of the methods provided herein, network devices and terminal devices may include hardware structures and / or software modules, with the aforementioned functions implemented in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Whether a particular function is implemented in the form of hardware structures, software modules, or a combination of hardware structures and software modules depends on the specific application and design constraints of the technical solution.

[0247] Figure 7 is a schematic block diagram of a communication device 700 according to an embodiment of the present application. The communication device 700 includes at least one processor 710 and a communication interface 720. Optionally, the at least one processor 710 and the communication interface 720 may be interconnected via a bus 730. The communication device 700 may be a network device or a terminal device.

[0248] Optionally, the communication device 700 may further include a memory 740. The memory 740 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or portable read-only memory (CD-ROM), and is used to store relevant instructions and data.

[0249] The at least one processor 710 may be one or more central processing units (CPUs). In the case where the at least one processor 710 is a CPU, the CPU may be a single-core CPU or a multi-core CPU.

[0250] When the communication device 700 is a network device, exemplarily, the communication device 700 is used to perform the following operations: determine the above-mentioned first wake-up signal, or send the 1st symbol group to the j1th symbol group among N symbol groups, or repeatedly send the nth symbol group among N symbol groups through multiple first monitoring opportunities, or repeatedly send the n+1th symbol group among N symbol groups through multiple second monitoring opportunities, etc.

[0251] When the communication device 700 is a terminal device, exemplarily, the communication device 700 is used to perform the following operations: receive the 1st symbol group to the j2th symbol group among N symbol groups, or determine whether to be awakened based on the received 1st symbol group to the j2th symbol group, etc.

[0252] The above contents are merely exemplary descriptions. When the communication device 700 is a network device / terminal device, it will be responsible for executing the methods or steps related to the network device / terminal device in the above method embodiments.

[0253] The above description is merely exemplary. For details, please refer to the contents of the above method embodiments. The implementation of each operation in FIG7 may also correspond to the corresponding description of the method embodiments shown in FIG3 to FIG6.

[0254] Figure 8 is a schematic block diagram of a communication device 800 according to an embodiment of the present application. Communication device 800 may be a network device or terminal device, or a chip or module within the network device or terminal device, configured to implement the methods described in the above embodiments. Communication device 800 includes a transmitting unit 810, a receiving unit 820, and a processing unit 830. The transmitting unit 810, receiving unit 820, and processing unit 830 are described below as examples.

[0255] The sending unit 810 is used to perform the sending action of the communication device 800, and the receiving unit 820 is used to perform the receiving action of the communication device 800. Optionally, the sending unit 810 and the receiving unit 820 in the embodiment of the present application can also be combined into one transceiver unit.

[0256] When the communication device 800 is a network device, exemplarily, the processing unit 830 is used to determine a first wake-up signal, the transceiver unit is used to send the 1st symbol group to the j1th symbol group among N symbol groups, or the transceiver unit is used to repeatedly send the nth symbol group among N symbol groups through multiple first monitoring opportunities, or the transceiver unit is used to repeatedly send the n+1th symbol group among N symbol groups through multiple second monitoring opportunities, etc.

[0257] When the communication device 800 is a terminal device, exemplarily, the transceiver unit is used to receive the 1st symbol group to the j2th symbol group among N symbol groups, and the processing unit 830 is used to determine whether to be awakened, etc. based on the received 1st symbol group to the j2th symbol group.

[0258] The above contents are merely exemplary descriptions. When the communication device 800 is a network device / terminal device, it will be responsible for executing the methods or steps related to the network device or terminal device in the above method embodiments.

[0259] Optionally, the communication device 800 further includes a storage unit 840, which is used to store a program or code for executing the aforementioned method.

[0260] The device embodiments shown in Figures 7 and 8 are used to implement the contents described in Figures 3 to 6. The specific execution steps and methods of the devices shown in Figures 7 and 8 can refer to the contents described in the above method embodiments.

[0261] Figure 9 is a schematic block diagram of a communication device 900 according to an embodiment of the present application. The communication device 900 is used to implement the functions of a network device / terminal device. The communication device 900 may be a chip in the network device / terminal device.

[0262] Communication device 900 includes an input / output interface 920 and at least one processor 910. The input / output interface 920 may be an input / output circuit. The at least one processor 910 may be a signal processor, a chip, or other integrated circuit capable of implementing the method of the present application. The input / output interface 920 is used for inputting or outputting signals or data.

[0263] For example, when the communication device 900 is a network device, at least one processor 910 is used to determine a first wake-up signal, the input-output interface 920 is used to send the 1st symbol group to the j1th symbol group among N symbol groups, or the input-output interface 920 is used to repeatedly send the nth symbol group among N symbol groups through multiple first monitoring opportunities, or the input-output interface 920 is used to repeatedly send the n+1th symbol group among N symbol groups through multiple second monitoring opportunities, etc.

[0264] For example, when the communication device 900 is a terminal device, the input and output interface 920 is used to receive the 1st symbol group to the j2th symbol group among N symbol groups, and at least one processor 910 is used to determine whether to be awakened based on the received 1st symbol group to the j2th symbol group.

[0265] In one possible implementation, at least one processor 910 implements the functions implemented by the network device or the terminal device by executing instructions stored in the memory.

[0266] Optionally, the communication device 900 further includes a memory.

[0267] Optionally, the processor and memory are integrated together.

[0268] Optionally, the memory is outside the communication device 900 .

[0269] In one possible implementation, at least one processor 910 may be a logic circuit, and at least one processor 910 inputs / outputs messages or signals through an input / output interface 920. The logic circuit may be a signal processor, a chip, or other integrated circuit that can implement the method of the embodiment of the present application.

[0270] The above description of the communication device 900 is only an exemplary description. The communication device 900 can be used to execute the method described in the above embodiment. For specific content, please refer to the description of the above method embodiment, which will not be repeated here.

[0271] The present application also provides a chip, comprising at least one processor, configured to call and execute instructions stored in a memory from the memory, so that a communication device equipped with the chip executes the methods in the above examples.

[0272] The present application also provides a chip, comprising: an input interface, an output interface, and at least one processor, wherein the input interface, the output interface, and the at least one processor are connected via an internal connection path, and the at least one processor is configured to execute code in a memory. When the code is executed, the at least one processor is configured to execute the methods in the above examples. Optionally, the chip also includes a memory configured to store computer programs or code.

[0273] The present application also provides a processor for coupling with a memory, and for executing the methods and functions involving a network device or a terminal device in any of the above embodiments.

[0274] The present application provides a computer program product comprising instructions. When the computer program product is run on a computer, the method of the aforementioned embodiment is implemented.

[0275] The present application also provides a computer program. When the computer program is executed in a computer, the method of the aforementioned embodiment is implemented.

[0276] The present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by a computer, the method described in the above embodiment is implemented.

[0277] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0278] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0279] In the several embodiments provided in this application, the disclosed systems, devices, and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0280] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the technical solutions of the embodiments of the present application.

[0281] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0282] If the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) to execute all or part of the steps of each method embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

[0283] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: The method comprises: receiving a first symbol group to a j2th symbol group among N symbol groups, where the N symbol groups carry K bits included in a first wake-up signal, P bits of the K bits are carried in an i-th symbol group among the N symbol groups, and the i-th symbol group includes a plurality of symbols; Part or all of the K bits are carried in the ON portion of the i-th symbol group, or part or all of the other KP bits of the K bits are carried in the ON portion of the i-th symbol group, Determining whether to be awakened based on the received first to j2th symbol groups; Wherein, i and j2 are any values ​​between 1 and N, and N, K, and P are all positive integers.

2. The method according to claim 1, characterized in that The i-th symbol group is the symbol group received first among the N symbol groups.

3. The method according to claim 1 or 2, characterized in that The K bits are divided into N segments of bits, and the P bits are the i-th segment of bits in the N segments of bits.

4. The method according to any one of claims 1 to 3, characterized in that Part or all of the K bits are carried in the ON part of the i-th symbol group, including: the P bits are carried in the i-th symbol group through OOK modulation, part or all of the K bits are carried in the ON part of the i-th symbol group through non-OOK modulation, and part or all of the K bits include the P bits.

5. The method according to claim 4, characterized in that The ON portion of each symbol in the plurality of symbols included in the i-th symbol group carries at least part or all of N1 / P bits in the K bits. Here, N1 represents the number of some or all bits in the K bits, and N1 / P is a positive integer.

6. The method according to any one of claims 1 to 3, characterized in that Part or all of the other KP bits among the K bits are carried in the ON part of the i-th symbol group, including: the P bits are carried in the i-th symbol group through OOK modulation, and part or all of the other KP bits among the K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

7. The method according to claim 6, characterized in that The ON portion of each symbol in the plurality of symbols included in the i-th symbol group carries at least part or all of N2 / P bits in the other KP bits in the K bits, Here, N2 represents the number of some or all bits in the other KP bits in the K bits, and N2 / P is a positive integer.

8. The method according to any one of claims 1 to 7, characterized in that The K bits are determined based on first information, where the first information is identification information, group identification information, or sub-group identification information of the terminal device.

9. The method according to claim 6 or 7, characterized in that The P bits are determined based on the first information, and the KP bits are preset bits; or, The KP bits are determined based on the first information, the P bits are preset bits, The first information is identification information, group identification information or sub-group identification information of the terminal device.

10. The method according to any one of claims 1 to 9, characterized in that The receiving the first symbol group to the j1th symbol group among the N symbol groups comprises: Each symbol group from the first symbol group to the j1th symbol group is received through at least one monitoring opportunity among a plurality of monitoring opportunities, where the plurality of monitoring opportunities correspond to a plurality of SSBs.

11. The method according to any one of claims 1 to 10, characterized in that The first wake-up signal is a low power wake-up signal LP-WUS or a low power synchronization signal LP-SS.

12. A communication method, characterized in that: The method comprises: Determine a first wake-up signal, where the first wake-up signal includes K bits, the K bits are carried in N symbol groups, P bits of the K bits are carried in an i-th symbol group among the N symbol groups, and the i-th symbol group includes multiple symbols; Part or all of the K bits are carried in the ON portion of the i-th symbol group, or part or all of the other KP bits of the K bits are carried in the ON portion of the i-th symbol group, Sending the first symbol group of the N symbol groups to the j1th symbol group; Wherein, i and j1 are any values ​​between 1 and N, and N, K, and P are all positive integers.

13. The method according to claim 12, characterized in that The i-th symbol group is the symbol group sent first among the N symbol groups.

14. The method according to claim 12 or 13, characterized in that The K bits are divided into N segments of bits, and the P bits are the i-th segment of bits in the N segments of bits.

15. The method according to any one of claims 12 to 14, characterized in that Part or all of the K bits are carried in the ON part of the i-th symbol group, including: the P bits are carried in the i-th symbol group through OOK modulation, part or all of the K bits are carried in the ON part of the i-th symbol group through non-OOK modulation, and part or all of the K bits include the P bits.

16. The method according to claim 15, characterized in that The ON portion of each symbol in the plurality of symbols included in the i-th symbol group carries at least part or all of N1 / P bits in the K bits. Here, N1 represents the number of some or all bits in the K bits, and N1 / P is a positive integer.

17. The method according to any one of claims 12 to 14, characterized in that Part or all of the other KP bits among the K bits are carried in the ON part of the i-th symbol group, including: the P bits are carried in the i-th symbol group through OOK modulation, and part or all of the other KP bits among the K bits are carried in the ON part of the i-th symbol group through non-OOK modulation.

18. The method according to claim 17, characterized in that The ON portion of each symbol in the plurality of symbols included in the i-th symbol group carries at least part or all of N2 / P bits in the other KP bits in the K bits, Here, N2 represents the number of some or all bits in the other KP bits in the K bits, and N2 / P is a positive integer.

19. The method according to any one of claims 12 to 18, characterized in that The K bits are determined based on first information, where the first information is identification information, group identification information, or sub-group identification information of the terminal device.

20. The method according to claim 17 or 18, characterized in that The P bits are determined based on the first information, and the KP bits are preset bits; or, The KP bits are determined based on the first information, the P bits are preset bits, The first information is identification information, group identification information or sub-group identification information of the terminal device.

21. The method according to any one of claims 12 to 20, characterized in that The network device corresponds to multiple synchronization signal blocks SSB, and the sending of the first symbol group to the j1th symbol group in the N symbol groups includes: repeatedly transmitting an nth symbol group among the N symbol groups through a plurality of first monitoring opportunities, the plurality of first monitoring opportunities corresponding to the plurality of SSBs; repeatedly transmitting the n+1th symbol group among the N symbol groups through a plurality of second monitoring opportunities, wherein the plurality of second monitoring opportunities correspond to the plurality of SSBs; Wherein, n is any value from 1 to j1.

22. The method according to any one of claims 12 to 21, characterized in that The first wake-up signal is a low power wake-up signal LP-WUS or a low power synchronization signal LP-SS.

23. A communication method, characterized in that: The method comprises: receiving a first symbol group to a j2th symbol group among N symbol groups, where the N symbol groups carry K bits included in a first wake-up signal, where each symbol group among the first symbol group to the j2th symbol group is received through at least one monitoring opportunity among a plurality of monitoring opportunities, where the plurality of monitoring opportunities correspond to a plurality of SSBs; Determining whether to be awakened based on the received first to j2th symbol groups; Wherein, j2 is any value between 1 and N, and N and K are both positive integers.

24. The method according to claim 23, wherein P bits of the K bits are carried in the i-th symbol group of the N symbol groups, and the i-th symbol group includes a plurality of symbols. Part or all of the K bits are carried in the ON portion of the i-th symbol group, or part or all of the other KP bits of the K bits are carried in the ON portion of the i-th symbol group, Wherein, i is any value from 1 to N, and P is a positive integer.

25. The method according to claim 23 or 24, characterized in that The i-th symbol group is the symbol group received first among the N symbol groups.

26. A communication method, characterized in that: The method comprises: Determine a first wake-up signal, where the first wake-up signal includes K bits, the K bits are carried in N symbol groups, and the network device corresponds to multiple SSBs; repeatedly transmitting an nth symbol group among the N symbol groups through a plurality of first monitoring opportunities, the plurality of first monitoring opportunities corresponding to the plurality of SSBs; repeatedly transmitting an (n+1)th symbol group among the N symbol groups through a plurality of second monitoring opportunities, the plurality of second monitoring opportunities corresponding to the plurality of SSBs; Wherein, n is any value between 1 and N, and N and K are both positive integers.

27. A communication device, characterized in that: comprising at least one processor configured to, by executing computer programs or instructions, The communication device is caused to perform the method according to any one of claims 1 to 11, or the communication device is caused to perform the method according to any one of claims 12 to 22, or the communication device is caused to perform the method according to any one of claims 23 to 25, or the communication device is caused to perform the method according to claim 26.

28. A computer-readable storage medium, characterized in that The computer readable storage medium stores a computer program or instruction. When the computer program or instruction is executed on a computer, The method of any one of claims 1 to 11 is performed, or the method of any one of claims 12 to 22 is performed, or the method of any one of claims 23 to 25 is performed, or the method of claim 26 is performed.

29. A computer program product, characterized in that Contains instructions that, when executed on a computer, The method of any one of claims 1 to 11 is performed, or the method of any one of claims 12 to 22 is performed, or the method of any one of claims 23 to 25 is performed, or the method of claim 26 is performed.

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