Subgroup information transmission method, and apparatus and communication system

Abstract

The present application provides a subgroup information transmission method, an apparatus, and a communication system, relating to the technical field of communications. In the described solution, when a network device sends LPWUS information on at least one MO among X MOs, the network device may indicate, by means of a first MO among the at least one MOs, at least one of the following: that the first MO is the last MO among at least one MO on a first beam; and the quantity of codepoint values sent by means of the at least one MO. When performing detection for MOs of a first beam, a terminal device may determine, on the basis of received indication information in respect of the first MO and a decoding result in respect of LPWUS information, whether to perform detection for a subsequent MO of the first beam. For example, when the first MO is the last MO among the at least one MOs, the terminal device may stop performing detection for subsequent MOs. In this way, terminal device detection time can be reduced, thus reducing terminal device power consumption.

Description

Subgroup information transmission method, device and communication system

[0001] The present application claims priority from the Chinese patent application No. 202411377923.9 filed on September 29, 2024, and entitled "Subgroup information transmission, device and communication system", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of terminal, and in particular to a subgroup information transmission method, device and communication system. BACKGROUND

[0003] To reduce the power consumption of terminal devices, a low power wake up signal (LPWUS) technology is proposed. For the scenario that the awakened subgroup is multiple groups, the related technology proposes to use the LPWUS information to indicate the code point value of one or more subgroups, and to support monitoring one or more monitoring occasions (MOs) in the same beam within the low power wake up signal occasion (LPWUS occasion, LO).

[0004] When there are multiple MOs in the same beam, the terminal device cannot predict the subgroup to be awakened by the network device, nor can it predict how many subgroups need to be awakened, so the terminal device may need to detect all the MOs existing in the same beam in turn, resulting in large energy consumption of the terminal device. SUMMARY

[0005] The present application provides a subgroup information transmission method, device and communication system to solve the problem of large energy consumption of the terminal device in detecting multiple MOs in the same beam in turn.

[0006] To achieve the above purpose, the present application adopts the following technical solutions:

[0007] In a first aspect, the present application provides a subgroup information transmission method. The method can be applied to a network device. The method can include: transmitting LPWUS information in at least one MO through a first beam. Wherein, the LPWUS information transmitted in each MO is used to indicate the code point value of one subgroup in the awakened subgroup, and the indication information of the first MO in the at least one MO is used to indicate at least one of the following: the first MO is the last MO in the at least one MO under the first beam; the number of code point values transmitted through the at least one MO.

[0008] In the scheme, when the network device sends the LPWUS information through at least one MO of the X MOs, the network device can indicate, through a first MO in the at least one MO, at least one of the following: the first MO is the last MO in the at least one MO under the first beam, and the number of code point values sent through the at least one MO. When the terminal device detects the MO of the first beam, whether to detect the subsequent MO of the first beam can be determined according to the received indication information of the first MO and the decoding result of the LPWUS information. For example, when the first MO is the last MO in the at least one MO, the terminal device can stop detecting the subsequent MO. In this way, the detection time of the terminal device can be reduced, and the power consumption of the terminal device can be saved.

[0009] In a possible implementation, the first beam corresponds to X MOs in one LO, and the at least one MO is the first Y MOs in the X MOs. X is a positive integer, and Y is an integer greater than or equal to 0. It can be understood that X is set to a positive integer, so that the network device sends the LPWUS information of one or more awakened subgroups on one or more MOs of one beam. In addition, by sending the LPWUS information in the first Y MOs, the terminal device can detect the LPWUS information as soon as possible, and the power consumption can be saved.

[0010] In a possible implementation, the code point values sent in the first Y MOs are arranged in ascending order.

[0011] In a possible implementation, the LPWUS information is sent in the at least one MO through the first beam, including: according to the number of awakened subgroups, the LPWUS information is sent in the first Y MOs of the X MOs through the first beam. As an example, the LPWUS information sent in each MO can include a preamble, a code point value, and CRC scrambling information.

[0012] In a possible implementation, X is predefined or determined according to network configuration.

[0013] In a possible implementation, Y is equal to the number of awakened subgroups, and the indication information of the first MO is specifically used to indicate the number of non-repeated code point values sent through the first Y MOs; or Y is greater than the number of awakened subgroups, and the indication information of the first MO is specifically used to indicate the number of repeated code point values and non-repeated code point values sent through the first Y MOs.

[0014] In a possible implementation, the indication information of the first MO is a terminal end symbol placed after the LPWUS information of the first MO, and the terminal end symbol is used to indicate that the first MO is the last MO in the at least one MO in the first beam. It can be understood that when the first MO is the last MO in the at least one MO in the first beam for sending the LPWUS information, by setting a terminal end symbol in the first MO, the terminal device can be informed that the current MO is the last MO in the at least one MO in the first beam for sending the LPWUS information, and the network device will not send the LPWUS information in the subsequent MO of the first beam, so that the terminal device can stop detecting the subsequent MO of the first beam, thereby reducing the power consumption of the terminal device.

[0015] In a possible implementation, the first MO is the first MO of the at least one MO, the indication information of the first MO is carried in the LPWUS information of the first MO, and the indication information of the first MO is used to indicate the number of code point values sent through the at least one MO. For example, an information field of N1 bits is added in the LPWUS information of the first MO, and the value of the information field can be used to indicate the number of code point values sent through the at least one MO. It can be understood that by adding N1 bits in the LPWUS information of the first MO to indicate the number of code points sent, the terminal device can determine the number of code points to be received based on the N1 bits, and only detect the first Y MOs corresponding to the code points, without having to detect the X MOs one by one, thereby reducing the power consumption of the terminal device and shortening the detection time.

[0016] In a possible implementation, the indication information of the first MO is specifically used to indicate the number of total code point values sent through the at least one MO. The total code point values include non-repeated code point values, or the total code point values include repeated code point values and non-repeated code point values.

[0017] In a possible implementation, an information field is arranged in each of the at least one MO, and the information field of each MO is used to indicate that the code point value of the next MO is a repeated code point value, or the code point value of the next MO is a non-repeated code point value, or no code point value will be sent subsequently.

[0018] In a possible implementation, the indication information of the first MO is jointly encoded or independently encoded with the code point value indicated by the LPWUS information of the first MO.

[0019] In a possible implementation, the first MO is a first MO of the at least one MO, and the indication information of the first MO is a time domain offset of the first MO, the time domain offset of the first MO being used to indicate a number of code point values sent through the at least one MO, and the time domain offset being a time difference between a starting time of the first MO and a preset reference point. The preset reference point can be predefined or determined according to network configuration. It can be understood that, by configuring different time domain offsets, the network device can control the number of code point values sent by controlling the time domain offset, so that the network device can detect the MOs based on different time domain offsets, and obtain the number of actually sent code points according to different time domain offsets, to assist subsequent detection. Since at most only the first Y MOs are detected, and the X MOs do not need to be detected in sequence, the power consumption of the terminal device is reduced, and the detection time is shortened.

[0020] In a possible implementation, the number of different wake-up subgroups corresponds to different time domain offsets; and the sending, by the first beam, of the LPWUS information in the at least one MO includes: determining the time domain offset according to the number of wake-up subgroups; and taking a time point with the time domain offset from the preset reference point as a starting time point, sending the LPWUS information in the at least one MO by the first beam.

[0021] In a possible implementation, the first MO is a first MO of the at least one MO, and the indication information of the first MO is a preamble sequence or an overlaid sequence of a preamble sequence of the LPWUS information of the first MO, the preamble sequence or the overlaid sequence of the preamble sequence of the LPWUS information of the first MO being used to indicate a number of code point values sent through the at least one MO, and different preamble sequences or different overlaid sequences of preamble sequences being used to indicate different numbers of code point values. It can be understood that the network device can carry the number of sent code points by using the sequence information of the preamble of the LPWUS and / or the overlaid sequence information of the preamble sequence, so that the terminal device can determine the number of code points to be received based on the sequence information of the preamble and / or the overlaid sequence information of the preamble sequence. Since at most only the first Y MOs are detected, and the X MOs do not need to be detected in sequence, the power consumption of the terminal device is reduced, and the detection time is shortened.

[0022] In a possible implementation, different preamble sequences are used to indicate different numbers of code point values; or different sequence categories of preamble sequences are used to indicate different numbers of code point values; or different overlaid sequences of preamble sequences are used to indicate different numbers of code point values; or different sequence categories of overlaid sequences of preamble sequences are used to indicate different numbers of code point values.

[0023] In a possible implementation, the preamble sequence or the overlaid sequence of the preamble sequence of the LPWUS information of each of the at least one MO is used to indicate the number of codepoint values transmitted by the at least one MO.

[0024] In a possible implementation, the indication information of the first MO is the preamble sequence or the overlaid sequence of the preamble sequence of the LPWUS information of the first MO, the preamble sequence or the overlaid sequence of the preamble sequence of the LPWUS information of the first MO is a first sequence, and the first sequence is used to indicate that the first MO is the last MO in the at least one MO in the first beam. It can be understood that, when the first MO is the last MO in the MOs used to transmit the LPWUS information in the first beam, the terminal device can be indicated that the first MO is the last MO in the at least one MO in the first beam by using the sequence information of the preamble of the first MO and / or the overlaid sequence information of the preamble sequence, and the network device does not transmit the LPWUS information in the subsequent MOs of the first beam, so that the terminal device can stop detecting the subsequent MOs of the first beam, thereby reducing the power consumption of the terminal device.

[0025] In a possible implementation, the first MO is the first MO of the at least one MO, the indication information of the first MO is carried in scrambling information of the LPWUS information of the first MO, the indication information of the first MO is used to indicate the number of codepoint values transmitted by the at least one MO, and the scrambling information of the LPWUS information includes at least one of the following: scrambling information of data of the LPWUS and cyclic redundancy check (CRC) scrambling information of the LPWUS. It can be understood that the network device can carry and transmit the number of codepoints by using the scrambling information of the LPWUS, so that the terminal device can determine the number of codepoints to be received based on a descrambling result of the scrambling information of the LPWUS. Since the terminal device only needs to detect the first Y MOs at most, and does not need to detect the X MOs in sequence, the power consumption of the terminal device is reduced, and the detection time is shortened.

[0026] In a possible implementation, the indication information of the first MO is carried in the scrambling information of the LPWUS information of each of the at least one MO.

[0027] In a possible implementation, the first MO is a first MO of the at least one MO, and the indication information of the first MO is an overlaid sequence of LPWUS information of the first MO, and the overlaid sequence of the LPWUS information of the first MO is used to indicate a number of code point values sent by the at least one MO, and different overlaid sequences are used to indicate different numbers of code point values. It can be understood that the network device can carry the number of sent code points by using the overlaid sequence of the LPWUS, so that the terminal device can determine the number of code points to be received based on the overlaid sequence of the LPWUS. Since the terminal device detects at most the first Y MOs, and does not have to detect the X MOs in sequence, the power consumption of the terminal device is reduced, and the detection time is shortened.

[0028] In a possible implementation, the overlaid sequence of the LPWUS information of each MO of the at least one MO is used to indicate the number of code point values sent by the at least one MO.

[0029] In a second aspect, the present application provides a sub-group information transmission method. The method can be applied to a network device. The method can include: sending a first LPSS sequence through a first beam, the first LPSS sequence being used to indicate a number of code point values to be sent through the first beam in at least one MO, and different LPSS sequences being used to indicate different numbers of code point values; and sending LPWUS information in the at least one MO through the first beam, the LPWUS information sent in each MO being used to indicate a code point value of one sub-group in a woken-up sub-group. Different LPSS sequences can include any one of the following: different sequences of the LPSS sequence, and different offset values of the LPSS sequence.

[0030] In this scheme, the network device can carry the number of sent code points by using the LPSS sequence, so that the terminal device can determine the number of code points to be received based on the LPSS sequence. Since the terminal device detects at most the first Y MOs, and does not have to detect the X MOs in sequence, the power consumption of the terminal device is reduced, and the detection time is shortened.

[0031] In a third aspect, the present application provides a sub-group information transmission method. The method can be applied to a network device. The method can include: sending first LPWUS information in a first MO through a first beam, the first LPWUS information being used to indicate a code point value of a first sub-group in a woken-up sub-group, and the first MO corresponding to a preset MO of the first sub-group; and sending second LPWUS information in a second MO through the first beam, the second LPWUS information being used to indicate a code point value of a second sub-group in the woken-up sub-group, and the second MO corresponding to a preset MO of the second sub-group. The first sub-group and the second sub-group are different sub-groups, and different sub-groups correspond to different preset MOs.

[0032] Exemplarily, assuming that the first beam corresponds to X MOs in one LO, the MOs used for sending the first sub-group and the second sub-group are determined in any of the following manners: manner 1, when X is equal to 2, the index value of the first sub-group is an odd number, and the index value of the second sub-group is an even number, so that the sub-group with an odd index value is detected in the first MO (such as the first MO), and the sub-group with an even index value is detected in the second MO (such as the second MO); manner 2, when X is equal to 2, the index value of the first sub-group is less than or equal to a first value, and the index value of the second sub-group is greater than the first value, the first value being the median of the total number of all sub-groups, so that the first 1 / 2 sub-groups are detected in the first MO (such as the first MO), and the last 1 / 2 sub-groups are detected in the second MO (such as the second MO); manner 3, when X is an integer greater than or equal to 2, the first MO is located at a position of the X MOs according to the remainder of the index value of the first sub-group divided by X, and the second MO is located at a position of the X MOs according to the remainder of the index value of the second sub-group divided by X. For example, the sub-group with an index value of 1 is detected in MO1, and the sub-group with an index value of 8 is detected in MO2.

[0033] In this scheme, by fixing the correspondence with the MO in advance, the network device can only send the LPWUS information at the fixed position, and accordingly, the terminal device only needs to detect the fixed position, without having to perform blind detection on the X MOs, thereby reducing the power consumption of the terminal device.

[0034] In a fourth aspect, the present application provides a sub-group information transmission method. The method can be applied to a network device. The method can include: sending LPWUS information in at least one MO through a first beam. Wherein, the LPWUS information sent in each MO is used to indicate the code point value of a sub-group in the awakened sub-group; the first beam corresponds to X MOs in one LO, the at least one MO is the first Y MOs in the X MOs, and the code point values sent in the first Y MOs are arranged in ascending order; X is a positive integer, and Y is an integer greater than or equal to 0.

[0035] In this scheme, the network device can send the code point values in the first Y MOs corresponding to the first beam in ascending order, so that the terminal device can determine whether to detect the subsequent MO according to the size relationship between the detected code point value and the code point value of the sub-group to which the terminal device belongs, such as stopping detecting the subsequent MO when the code point value of the sub-group to which the terminal device belongs is less than the detected code point value, without having to perform blind detection, thereby reducing the power consumption of the terminal device.

[0036] In a fifth aspect, the present application provides a sub-group information transmission method. The method can be applied to a terminal device. The method can include: detecting MOs of a first beam; detecting, at a first MO of the first beam, first LPWUS information, the first LPWUS information being used to indicate a code point value of one sub-group in a woken-up sub-group; determining, based on indication information of the first MO, whether to detect subsequent MOs of the first beam, the indication information of the first MO including a decoding result of the first LPWUS information. Wherein, the indication information of the first MO is used to indicate at least one of the following: the first MO is the last MO in at least one MO in which the first beam transmits LPWUS information; and a number of code point values transmitted through the at least one MO.

[0037] In this scheme, when the terminal device detects the MOs of the first beam, it can determine whether to detect the subsequent MOs of the first beam according to the received indication information of the first MO and the decoding result of the LPWUS information. For example, when the first MO is the last MO in the at least one MO, the terminal device can stop detecting the subsequent MOs. In this way, the detection time of the terminal device can be reduced, and the power consumption of the terminal device can be saved.

[0038] In a possible implementation, the first beam corresponds to X MOs within one LO, and the first MO is an MO in the first Y MOs of the X MOs. Wherein, X is a positive integer, and Y is an integer greater than or equal to 0.

[0039] In a possible implementation, the code point values detected in the first Y MOs are arranged in ascending order.

[0040] In a possible implementation, X is predefined or determined according to network configuration.

[0041] In a possible implementation, Y is equal to the number of the woken-up sub-group, and the indication information of the first MO is specifically used to indicate a number of non-repeated code point values transmitted through the first Y MOs; or Y is greater than the number of the woken-up sub-group, and the indication information of the first MO is specifically used to indicate a number of repeated code point values and non-repeated code point values transmitted through the first Y MOs.

[0042] In a possible implementation, the indication information of the first MO is a termination end symbol placed after the first LPWUS information; and determining, based on the indication information of the first MO, whether to detect the subsequent MOs of the first beam includes: decoding the first LPWUS information; and if a termination end symbol is detected after the first LPWUS information, determining not to detect the subsequent MOs of the first beam, the termination end symbol being used to indicate that the first MO is the last MO in the at least one MO in which the first beam transmits the LPWUS information.

[0043] In a possible implementation, the first MO is a first MO of the at least one MO that transmits the LPWUS information through the first beam; and determining, based on the indication information of the first MO, whether to detect a subsequent MO of the first beam includes: decoding the first LPWUS information to obtain a codepoint value of a sub-group and indication information, the indication information being used to indicate a number of codepoint values transmitted through the at least one MO; and determining, based on the codepoint value of the sub-group and the number of codepoint values transmitted through the at least one MO, whether to detect the subsequent MO of the first beam.

[0044] In a possible implementation, an information field is arranged in each of the at least one MO, respectively, and the information field of each MO is used to indicate that a codepoint value of a next MO is a repeated codepoint value, or that the codepoint value of the next MO is a non-repeated codepoint value, or that no codepoint value is transmitted subsequently. After it is determined that the subsequent MO of the first beam is detected, the method can further include: decoding the information field of each MO; and determining, based on a decoding result of the information field of the current MO, a decoding result of the LPWUS information of the current MO, and the number of codepoint values transmitted through the at least one MO, whether to detect the subsequent MO of the first beam.

[0045] In a possible implementation, the first MO is a first MO of the at least one MO that transmits the LPWUS information through the first beam. Detecting the MO of the first beam includes: detecting the first MO based on different time domain offsets, the time domain offset being a time deviation of a starting time of the first MO from a preset reference point, and the different time domain offsets being used to indicate different numbers of codepoint values. Detecting the first LPWUS information in the first MO of the first beam includes: detecting the first LPWUS information in the first MO at a time point of a first time domain offset from the preset reference point. Determining, based on the indication information of the first MO, whether to detect the subsequent MO of the first beam includes: determining, based on the number of codepoint values indicated by the first time domain offset and a decoding result of the first LPWUS information, whether to detect the subsequent MO of the first beam.

[0046] In a possible implementation, the first MO is a first MO of the at least one MO that transmits the LPWUS information through the first beam; and determining, based on the indication information of the first MO, whether to detect a subsequent MO of the first beam includes: decoding the first LPWUS information to obtain a codepoint value of a sub-group and indication information, the indication information being used to indicate a number of codepoint values transmitted through the at least one MO; and determining, based on the codepoint value of the sub-group and the number of codepoint values transmitted through the at least one MO, whether to detect the subsequent MO of the first beam.

[0047] In a possible implementation, the first MO is the last MO of the at least one MO in which the LPWUS information is transmitted through the first beam. Based on the indication information of the first MO, determining whether to detect the subsequent MO of the first beam includes: decoding the first LPWUS information to obtain a codepoint value of a sub-group and indication information, the indication information being a preamble sequence or an overlapping sequence of the preamble sequence of the first LPWUS information, the preamble sequence or the overlapping sequence of the preamble sequence of the first LPWUS information being a first sequence, the first sequence being used to indicate that the first MO is the last MO of the at least one MO under the first beam; and determining not to detect the subsequent MO of the first beam based on the codepoint value of the sub-group and the number of codepoint values sent through the at least one MO.

[0048] In a possible implementation, the first MO is the first MO of the at least one MO in which the LPWUS information is transmitted through the first beam. Based on the indication information of the first MO, determining whether to detect the subsequent MO of the first beam includes: decoding the first LPWUS information to obtain a codepoint value of a sub-group and indication information, the indication information being scrambling information of the LPWUS information, the scrambling information being used to indicate the number of codepoint values sent through the at least one MO, the scrambling information of the LPWUS information including at least one of the following: scrambling information of data of the LPWUS, and cyclic redundancy check (CRC) scrambling information of the LPWUS; and determining whether to detect the subsequent MO of the first beam based on the codepoint value of the sub-group and the number of codepoint values sent through the at least one MO.

[0049] In a possible implementation, the first MO is the first MO of the at least one MO in which the LPWUS information is transmitted through the first beam. Based on the indication information of the first MO, determining whether to detect the subsequent MO of the first beam includes: decoding the first LPWUS information to obtain a codepoint value of a sub-group and indication information, the indication information being a preamble sequence or an overlapping sequence of the preamble sequence of the first LPWUS information, the preamble sequence or the overlapping sequence of the preamble sequence of the first LPWUS information being a first sequence, the first sequence being used to indicate that the first MO is the last MO of the at least one MO under the first beam; and determining not to detect the subsequent MO of the first beam based on the codepoint value of the sub-group and the number of codepoint values sent through the at least one MO.

[0050] In a sixth aspect, the present application provides a sub-group information transmission method. The method can be applied to a terminal device. The method can include: receiving a first LPSS sequence through a first beam, the first LPSS sequence being used to indicate a number of code point values to be transmitted through at least one MO of the first beam, different LPSS sequences being used to indicate different numbers of code point values; detecting the at least one MO of the first beam to obtain LPWUS information, the LPWUS information detected in each MO being used to indicate a code point value of a sub-group in a wake-up sub-group.

[0051] In this scheme, the network device can use the number of code points carried by the LPSS sequence for transmission, so that the terminal device can determine the number of code points to be received based on the LPSS sequence. Since the terminal device only needs to detect at most the first Y MOs, and does not need to detect the X MOs one by one, the power consumption of the terminal device is reduced, and the detection time is shortened.

[0052] In a seventh aspect, the present application provides a sub-group information transmission method. The method can be applied to a terminal device. The method can include: detecting an MO of a first beam; detecting first LPWUS information in a first MO of the first beam, the first LPWUS information being used to indicate a code point value of a first sub-group in a wake-up sub-group, the first MO corresponding to a preset MO of the first sub-group; determining whether to detect a subsequent MO of the first MO based on a decoding result of the first LPWUS information.

[0053] Exemplarily, the terminal device can detect the MO in any of the following ways: way 1, when X is 2, detecting the first 1 / 2 sub-groups in the first MO and the last 1 / 2 sub-groups in the second MO; way 2, when X is 2, detecting the sub-groups with odd index values in the first MO and the sub-groups with even index values in the second MO; way 3, determining the position of the first MO in the X MOs according to sub-group ID mod X.

[0054] In this scheme, by pre-fixing the correspondence relationship with the MO, the terminal device only needs to detect the fixed position (such as the first MO). When the terminal device detects the first MO of the first beam, it can determine whether to detect the subsequent MO of the first beam according to the received indication information of the first MO and the decoding result of the LPWUS information. For example, when the first MO is the last MO of the at least one MO, the terminal device can stop detecting the subsequent MO. In this way, the detection time of the terminal device can be reduced, and the power consumption of the terminal device can be saved.

[0055] In an eighth aspect, the present application provides a sub-group information transmission method. The method can be applied to a terminal device. The method can include: detecting an MO of a first beam; detecting, in a first MO of the first beam, first LPWUS information, the first LPWUS information being used to indicate a code point value of one sub-group in a woken-up sub-group; if the detected code point value is greater than a code point value of a sub-group to which the terminal device belongs, terminating detection of a subsequent MO of the first beam; if the detected code point value is equal to the code point value of the sub-group to which the terminal device belongs, waking up and establishing a service; and if the detected code point value is less than the code point value of the sub-group to which the terminal device belongs, continuing to detect the subsequent MO of the first beam.

[0056] In this scheme, the network device can send the code point values in the first Y MOs corresponding to the first beam in ascending order, so that the terminal device can determine whether to detect the subsequent MO according to the size relationship between the detected code point value and the code point value of the sub-group to which the terminal device belongs, for example, when the code point value of the sub-group to which the terminal device belongs is less than the detected code point value, the detection of the subsequent MO is stopped, and blind detection is not necessary, thereby reducing the power consumption of the terminal device.

[0057] In a ninth aspect, the present application provides a communication device. The communication device can include a processor, a communication interface, and a memory coupled to the processor and the communication interface. The memory stores instructions, and the processor executes the instructions to cause the communication device to perform the method of any one of the first aspect to the eighth aspect.

[0058] In a tenth aspect, the present application provides a network device. The network device can include one or more processors and a memory. The memory is coupled to the one or more processors, and the memory is configured to store computer program codes. The computer program codes can include computer instructions, and the one or more processors invoke the computer instructions to cause the network device to perform the method of any one of the first aspect to the fourth aspect.

[0059] In an eleventh aspect, the present application provides a terminal device. The terminal device can include one or more processors and a memory. The memory is coupled to the one or more processors, and the memory is configured to store computer program codes. The computer program codes can include computer instructions, and the one or more processors invoke the computer instructions to cause the terminal device to perform the method of any one of the fifth aspect to the eighth aspect.

[0060] In a twelfth aspect, the present application provides a communication system. The communication system can include a network device and a terminal device. The network device is configured to perform the sub-group information transmission method of any one of the first aspect to the fourth aspect, and the terminal device is configured to perform the sub-group information transmission method of any one of the fifth aspect to the eighth aspect.

[0061] In a thirteenth aspect, the present application provides a computer readable storage medium storing a computer program. When the computer program is run on a network device, the network device performs the sub-group information transmission method according to any one of the first aspect to the fourth aspect; or when the computer program is run on a terminal device, the terminal device performs the sub-group information transmission method according to any one of the fifth aspect to the eighth aspect.

[0062] In a fourteenth aspect, the present application provides a chip coupled with a memory, the chip being configured to read and execute a computer program stored in the memory, so as to implement the sub-group information transmission method according to any one of the first aspect to the eighth aspect.

[0063] In a fifteenth aspect, the present application provides a computer program product. When the computer program is run on a network device, the network device performs the sub-group information transmission method according to any one of the first aspect to the fourth aspect; or when the computer program is run on a terminal device, the terminal device performs the sub-group information transmission method according to any one of the fifth aspect to the eighth aspect.

[0064] It can be understood that the beneficial effects of the ninth aspect to the fifteenth aspect described above can be referred to the related description of the first aspect to the eighth aspect, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0065] FIG. 1 is a schematic diagram of an architecture of an Internet of Things system according to an embodiment of the present application;

[0066] FIG. 2 is a schematic diagram of a communication system according to an embodiment of the present application;

[0067] FIG. 3 is a schematic diagram of a low-power wake-up mechanism according to an embodiment of the present application;

[0068] FIG. 4 is a schematic diagram of modulating an OFDM symbol by an OOK-1 modulation mode according to an embodiment of the present application;

[0069] FIG. 5 is a schematic diagram of modulating an OFDM symbol by an OOK-4 modulation mode according to an embodiment of the present application;

[0070] FIG. 6 is a schematic diagram of four overlaid sequences according to an embodiment of the present application;

[0071] FIG. 7 is a schematic diagram of a sub-group according to an embodiment of the present application;

[0072] FIG. 8 is a schematic diagram of a bitmap corresponding to different sub-groups according to an embodiment of the present application;

[0073] FIG. 9 is a schematic diagram of code point values corresponding to different sub-groups according to an embodiment of the present application;

[0074] FIG. 10 is a schematic diagram of scanning MOs in multiple beams of one LO according to an embodiment of the present application;

[0075] FIG. 11 is a schematic diagram of transmitting code points in multiple MOs of one beam according to an embodiment of the present application;

[0076] FIG. 12 is a schematic diagram of a hardware structure of a communication apparatus according to an embodiment of the present application;

[0077] FIG. 13 is a schematic diagram of a first sub-group information transmission method according to an embodiment of the present application;

[0078] FIG. 14 is a schematic diagram of transmitting LPWUS information in the first Y MOs of X MOs according to an embodiment of the present application;

[0079] FIG. 15 is a schematic diagram of transmitting code point values in descending order according to an embodiment of the present application;

[0080] FIG. 16 is a schematic diagram of non-repeated code point values transmitted through the first Y MOs according to an embodiment of the present application;

[0081] FIG. 17 is a schematic diagram of repeated and non-repeated code point values transmitted through the first Y MOs according to an embodiment of the present application;

[0082] FIG. 18 is a schematic diagram of placing a termination end marker in the last MO according to an embodiment of the present application;

[0083] FIG. 19 is a schematic diagram of N1 bits and code point values according to an embodiment of the present application;

[0084] FIG. 20 is a schematic diagram of indication information of N1 bits according to an embodiment of the present application;

[0085] FIG. 21 is a schematic diagram of setting one information field in each of the first Y MOs according to an embodiment of the present application;

[0086] FIG. 22 is a schematic diagram of different numbers of woken-up sub-groups corresponding to different time domain offsets according to an embodiment of the present application;

[0087] FIG. 23 is a schematic diagram of indicating the number of code point values of a woken-up sub-group based on a time domain offset according to an embodiment of the present application;

[0088] FIG. 24 is a schematic diagram of indicating the number of code point values through a preamble sequence according to an embodiment of the present application;

[0089] FIG. 25 is a schematic diagram of another method of indicating the number of code point values through a preamble sequence according to an embodiment of the present application;

[0090] FIG. 26 is a schematic diagram of indicating the last MO by a preamble sequence according to an embodiment of the present application;

[0091] FIG. 27 is a schematic diagram of indicating the number of code points by a CRC sequence according to an embodiment of the present application;

[0092] FIG. 28 is a flow diagram of a second sub-group information transmission method according to an embodiment of the present application;

[0093] FIG. 29 is a schematic diagram of indicating the number of code points by a LPSS sequence according to an embodiment of the present application;

[0094] FIG. 30 is a flow diagram of a third sub-group information transmission method according to an embodiment of the present application;

[0095] FIG. 31 is a schematic diagram of grouping the positions of different code points according to the number of X MOs according to an embodiment of the present application. DETAILED DESCRIPTION

[0096] The terms "first" and "second" and the like in the description of the present application and in the claims of the accompanying drawings are used to distinguish different objects, or to distinguish different processing of the same object, and are not used to describe a specific order of the objects. In addition, the terms "include" and "have" and any variations thereof mentioned in the description of the present application are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally include other steps or units not listed, or can optionally include other steps or units inherent to the process, method, product or device. In the embodiments of the present application, "a plurality of" includes two or more. In the embodiments of the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration, in addition, the network architecture and business scenarios described in the embodiments of the present application are used to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided by the embodiments of the present application. Those skilled in the art can know that the technical solutions provided by the embodiments of the present application are also applicable to similar technical problems as the network architecture evolves and new business scenarios appear.

[0097] The technical solutions in the embodiments of the present application will be described below in conjunction with the accompanying drawings in the embodiments of the present application.

[0098] Internet of Things (IoT) refers to connecting all things through terminal devices and the Internet to realize intelligent identification and management. Internet of Things mainly provides two types of services: the first type of service is to save the data received by the terminal device to the database and analyze the collected data; the second service is to send instructions and information to the terminal device.

[0099] Exemplarily, FIG. 1 shows an architecture diagram of an Internet of Things system.

[0100] As shown in FIG. 1, the Internet of Things system can include a perception layer, a network layer and an application layer.

[0101] The perception layer is composed of various terminal devices and sensors with functions of perception, identification, control and execution, such as mobile phones, personal computers (PCs), wearable devices, smart home devices, intelligent transportation terminals, wireless terminals in industrial control, wireless terminals in smart grids, wireless terminals in smart cities, wireless terminals in remote medical surgery, etc.

[0102] The network layer, also known as the transmission layer, is the nervous system of the Internet of Things, and mainly performs information transmission. The network layer includes an access layer, a convergence layer and a switching layer. The access layer is equivalent to the physical layer and the data link layer of the computer network, and the radio frequency identification (RFID) tags, sensors and access layer devices constitute the basic unit of the Internet of Things perception network. The access layer network technology is divided into wireless access and wired access. The wireless access includes wireless local area networks, M2M communication in mobile communication; the wired access includes field buses, power line access, television cables and telephone lines. The convergence layer is located between the access layer and the switching layer, and performs data packet convergence, forwarding and switching, as well as local routing, filtering, traffic balancing, etc. The convergence layer technology is also divided into wireless networks and wired networks. The wireless networks include wireless local area networks, wireless metropolitan area networks, M2M communication in mobile communication and dedicated wireless communication, etc. The wired networks include local area networks, field buses, etc. The switching layer provides high-speed, secure and quality-of-service guaranteed data transmission for the Internet of Things, and can be an IP network, a virtual private network, the Internet or a mobile communication network, etc.

[0103] The application layer is the interface of the Internet of Things and users (including people, organizations and other systems). The application layer is divided into a service layer and an industry application layer. The service layer realizes the physical isolation and seamless connection between the perception hardware and the application software through middleware software, provides efficient aggregation and storage of massive data, and provides safe network management and intelligent services for the industry application layer through data mining and intelligent data processing and calculation. The industry application layer provides Internet of Things services for different industries such as intelligent medical treatment, intelligent transportation, intelligent home, intelligent logistics, etc., and is mainly composed of application layer protocols. Different industries need to develop different application layer protocols.

[0104] On the basis of the Internet of Things system as shown in FIG. 1, the present application provides a communication system 10.

[0105] As shown in FIG. 2, the communication system 10 can include at least one network device 11 and at least one terminal device 12.

[0106] In the embodiments of the present application, the communication system 10 can be an Internet of Things system, or a 3GPP related cellular communication system, for example, a 4G communication system, such as a long term evolution (LTE) communication system, or a 5G communication system, such as a 5G new radio (NR) communication system, or various future communication systems.

[0107] The communication system 10 can also be a Bluetooth system, a Wi-Fi system, a LoRa system, or a vehicle-to-everything (V2X) system, a communication system supporting multiple wireless technology convergence, a device-to-device (D2D) system, or a satellite communication system. The satellite communication system can be integrated with the above communication systems. The wireless communication system involved in the present application also includes, but is not limited to, a narrowband Internet of Things (NB-IoT) system, a global system for mobile communications (GSM) system, an enhanced data rates for GSM evolution (EDGE) system, a wideband code division multiple access (WCDMA) system, a code division multiple access 2000 (CDMA2000) system, or a time division synchronous code division multiple access (TD-SCDMA) system.

[0108] The network device 11 described above can be an access network device of a 3GPP related cellular system, for example, a 4G mobile communication system or a 5G mobile communication system. The network device 11 can also be an access network device in an open RAN (ORAN) or a cloud radio access network (CRAN). Alternatively, the network device 11 can also be an access network device in a communication system obtained by integrating two or more of the above communication systems.

[0109] The network device 11 can include, but is not limited to, an evolved Node B (eNB), a radio network controller (RNC), a Node B (NB), a base station controller (BSC), a base transceiver station (BTS), a home base station, a base band unit (BBU), an access point (AP) in a wireless fidelity (WiFi) system, a macro base station, a micro base station, a wireless relay node, a donor node, a radio controller in a CRAN scenario, a wireless backhaul node, a transmission point (TP), or a transmission and receiving point (TRP). The network device 11 can also be an access network device in a 5G mobile communication system. For example, a next generation NodeB (gNB), a TRP, a TP, or one or a group (including multiple antenna panels) of antenna panels of a base station in a 5G mobile communication system. Alternatively, the network device 11 can also be a network node constituting a gNB or a transmission point. For example, a centralized unit (CU), a distributed unit (DU), or a radio unit (RU), etc. The CU and the DU can be separately arranged, or can be included in the same network element. Alternatively, the network device 11 can also be a server, a wearable device, a vehicle or a vehicle-mounted device, etc. For example, in a V2X technology, the network device can be a road side unit (RSU).

[0110] It should be noted that the network device 11 can be the device or apparatus shown above, or a component (for example, a chip), a module, or a unit in the device or apparatus shown above, and the present application is not limited thereto.

[0111] The terminal device 12, which can also be referred to as a user equipment (UE), a mobile station (MS), a mobile terminal (MT), or the like, is a device that provides voice or data connectivity to a user. Specifically, the terminal device 12 includes a device that provides voice connectivity to a user, or a device that provides data connectivity to a user, or a device that provides both voice and data connectivity to a user. For example, the terminal device 12 can include a handset, a device that connects to a wireless modem, or a processing device that connects to a wireless modem. The terminal device 12 can be a cellular phone, a tablet computer, a laptop computer, a palmtop computer, a mobile internet device (MID), a wearable device, a vehicle-mounted device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a smart home device, a smart robot, a plant device, a wireless terminal in unmanned driving, a wireless terminal in remote surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, a flight device, or the like. The terminal device 12 can also be other devices with terminal functions, for example, the terminal device 12 can also be a device that plays a terminal function in D2D communication. The terminal device 12 can also include a vehicle-to-everything (V2X) terminal device, a machine-to-machine / machine-type communications (M2M / MTC) terminal device, an Internet of Things terminal device, a light terminal device, a reduced-capability user equipment, a subscriber unit, a subscriber station, a mobile station, a remote station, an access point (AP), a remote terminal, an access terminal, a user terminal, a user agent, or a user device, a drone device, or the like. In this application, devices with wireless transceiving functions and chips that can be provided in the terminal device described above are collectively referred to as terminal devices.

[0112] It should be noted that the terminal device 12 can be a device or apparatus with a chip, or a device or apparatus integrated with a circuit, or a chip, module or control unit in the above-mentioned device or apparatus, and the specific application is not limited.

[0113] Since Rel-16, the 3rd generation partnership project (3GPP) has been studying energy saving technologies for 5G terminal devices. Although the existing energy saving technologies for terminal devices can greatly reduce the power consumption of 5G terminal devices, there is still a big gap from the power consumption requirements of Internet of Things terminals, such as the standby time requirements of industrial sensor terminals for more than 1 year and wearable terminals for more than 2 weeks.

[0114] In this regard, a low power wake up signal (LPWUS) technology is proposed.

[0115] Exemplarily, FIG. 3 shows a schematic diagram of a low power wake up mechanism. As shown in FIG. 3, the terminal device can include a main communication unit and a wake-up receiver unit. When there is no service requirement, the terminal device turns off the main communication unit and only turns on the wake-up receiver unit. When the network device needs to communicate with the terminal device, the network device can send an LPWUS to the terminal device. The wake-up receiver unit of the terminal device detects the LPWUS, and after successfully receiving the LPWUS, triggers the main communication unit to turn on, establishes a communication connection with the network device, and completes the transmission and reception of services through the established communication connection. It can be understood that by introducing LPWUS on the basis of the traditional communication unit, the power consumption can be reduced while maintaining a low latency.

[0116] When transmitting a signal, the transmitting end of the signal (such as a network device) can first encode the digital signal to be transmitted (i.e., the original information bits) to obtain encoded information bits, then modulate the encoded information bits using an on-off keying (OOK) modulation method, modulate the encoded information bits to an orthogonal frequency division multiplexing (OFDM) waveform to obtain an OOK-modulated carrier signal, and finally transmit the carrier signal. After the receiving end (such as a terminal device) receives the carrier signal, the carrier signal can be demodulated and decoded to recover the digital signal.

[0117] The OOK modulation method will be described in detail below. The OOK modulation method mainly includes OOK-1 and OOK-4.

[0118] Exemplarily, FIG. 4 is a schematic diagram of modulating an OFDM symbol by an OOK-1 modulation method.

[0119] Fig. 4 describes an OFDM symbol after OOK-1 modulation from the perspective of frequency domain, which contains only one bit. First, the transmitting device modulates the subcarriers based on the information bit to be transmitted. When the subcarrier for Ambient IoT is 1, i.e. OOK = 1, it means that all subcarriers have been modulated. When the subcarrier for Ambient IoT is 0, i.e. OOK = 0, all subcarriers are zero power consumption. Through inverse fast fourier transform (IFFT) and adding cyclic prefix (CP), a modulated OFDM symbol is obtained.

[0120] Fig. 5 is an example of modulating an OFDM symbol by OOK-4 modulation.

[0121] Fig. 5 describes an OFDM symbol after OOK-4 modulation from the perspective of time domain, which transforms M-bit OOK in time domain. The number of chips M = 4 in the figure, i.e. one OFDM symbol contains four bits, i.e. four chips. After the signal is generated, the transmitting device can modify the signal or not. Further, the transmitting device generates N subcarrier information in frequency domain through discrete fourier transform (DFT) or least square transform. M-bit OOK also generates N' samples. If the transmitting device does not truncate or otherwise modify the signal, then N' = N.

[0122] In the above two ways, in order to make the signal spectrum flat when transmitting, an overlaid sequence needs to be introduced to modulate the signal to generate the final transmitting signal. Usually, there are two ways: the first way is to multiply the overlaid sequence and the original information bit or its sample signal in time domain, and the second way is to modulate the overlaid sequence to the subcarrier of OFDM for transmission in frequency domain. For example, Fig. 6 shows a schematic diagram of four overlaid sequences. Regardless of the way, the use of overlaid sequence can realize the modulation of LPWUS, so that the transmission of LPWUS is spectrum flat.

[0123] Usually, the network device divides the terminal devices sharing the same paging occasion into a subgroup.

[0124] Exemplarily, FIG. 7 shows a schematic diagram of a sub-group. As shown in FIG. 7, the network device can divide a plurality of sub-groups, each of which is composed of a plurality of terminal devices sharing the same paging occasion (PO). The network device sends the same LPWUS message to all users in the same sub-group in units of sub-groups, to wake up all users in the same sub-group, thereby improving the wake-up efficiency.

[0125] It should be noted that the above sub-group can also be referred to as a group, a category, or any other possible name, which is not limited in the present application. One sub-group can include one or more users, or can not include users. In addition, the manner of dividing sub-groups can include but is not limited to: dividing terminal devices sharing the same paging occasion into a sub-group, dividing sub-groups based on the location of users, and of course, other manners of dividing sub-groups are also possible, which are not limited in the present application.

[0126] At present, the network device can wake up the sub-group in the following two ways.

[0127] The first is the bitmap manner. Taking an example of dividing 8 sub-groups. As shown in FIG. 8, one bit represents one sub-group. When the bit value of a sub-group is 0, it means not to wake up this sub-group; when the bit value of a sub-group is 1, it means to wake up this sub-group. For example, 00100100 means to wake up the 2nd sub-group and the 5th sub-group. In this manner, since each sub-group corresponds to one bit, the network device can indicate whether each of the 8 sub-groups needs to be woken up at the same time. However, whether a group of users needs to be woken up or not, the network device must indicate through 8 bits together, resulting in a large overhead.

[0128] The second is the codepoint manner. Still taking an example of dividing 8 sub-groups. As shown in FIG. 9, one codepoint value is composed of 3 bits. Among them, the codepoint value 000 represents the 1st sub-group, the codepoint value 001 represents the 2nd sub-group, the codepoint value 010 represents the 3rd sub-group, the codepoint value 011 represents the 4th sub-group, the codepoint value 100 represents the 5th sub-group, the codepoint value 101 represents the 6th sub-group, the codepoint value 110 represents the 7th sub-group, and the codepoint value 111 represents the 8th sub-group. In this manner, the network device only needs 3 bits to wake up one sub-group at a time, so it can save overhead compared with the bitmap manner, but this manner can only wake up one sub-group at a time.

[0129] In general, for a radio resource control (RRC) in an idle state or an inactive state, each time a sub-group is woken up, the sub-group is one group, in which case, using the code point is more advantageous. However, in a high-load case, the network device can need to wake up multiple sub-groups, that is, the woken-up sub-groups are multiple groups.

[0130] For the scenario in which the woken-up sub-groups are multiple groups, the related art proposes to use the LPWUS to indicate the code point value of one or more sub-groups in a part of the paging occasion, and to support monitoring one or more monitor occasions (MOs) in the same beam within the low-power wake-up signal occasion (LO).

[0131] For example, FIG. 10 shows a schematic diagram of scanning the MOs in multiple beams of one LO.

[0132] As shown in (a) of FIG. 10, in the idle state or the inactive state, in one LO, the network device has determined at least one sub-group to be woken up, but cannot determine in which beam the user is located, so the network device can sequentially scan each beam, that is, send the LPWUS information for activating the woken-up sub-group on each beam. Each beam of the N beams corresponds to X MOs, and the network device can first send the LPWUS on at least one MO of the X MOs on beam 1, then send the LPWUS on at least one MO of the X MOs on beam 2, and finally send the LPWUS on at least one MO of the X MOs on beam N. As shown in (b) of FIG. 10, since in the connected state, the network device already knows in which beam the terminal device is located, the network device does not need to sequentially scan each beam, but directly sends the LPWUS on at least one MO of the beam (for example, beam 1) corresponding to the terminal device.

[0133] Since there are multiple MOs in the same beam, the terminal device cannot predict the sub-group to be woken up by the network device, nor can it predict how many sub-groups need to be woken up, so the terminal device can need to sequentially detect these MOs according to the value of X, resulting in a large energy consumption of the terminal device.

[0134] Exemplarily, FIG. 11 shows a schematic diagram of sending code points in multiple MOs of one beam. It is assumed that a terminal device with a code point value of 111 belonging to the 8th subgroup is located in the coverage of beam 1. As shown in FIG. 11, beam 1 corresponds to X MOs preset. The network device can send code point values of 010 and 100 in MO1 and MO2 respectively. Since the terminal device cannot predict the subgroup to be woken up by the network device, nor can it predict how many subgroups need to be woken up, the terminal device may need to detect these MOs in turn according to the value of X. For example, if the terminal device detects the code point value of 010 in MO1, it determines that the 8th subgroup is not indicated, and continues to detect MO2. Then, if the terminal device detects the code point value of 100 in MO2, it determines that the 8th subgroup is still not indicated, and continues to detect MO3. Then, if the terminal device does not detect the code point value in MO3, it determines that the 8th subgroup is not indicated, and continues to detect MO4. If the terminal device does not detect the code point value in MOX, it determines that the 8th subgroup is not indicated. It can be understood that only after the terminal device completes the detection of the X MOs, it can determine whether it needs to be activated, resulting in a large energy consumption of the terminal device.

[0135] In view of the above problems, the embodiment of the present application provides a subgroup information transmission method. In the method, when the network device sends the LPWUS information of the woken-up subgroup in at least one MO of X MOs, the network device can indicate at least one of the following through a first MO in the at least one MO: the first MO is the last MO in the at least one MO under the first beam, and the number of code point values sent through the at least one MO. When detecting the MO of the first beam, the terminal device can determine whether to detect the subsequent MO of the first beam according to the received indication information of the first MO and the decoding result of the LPWUS information. For example, when the first MO is the last MO in the at least one MO, the terminal device can stop detecting the subsequent MO. In this way, the detection time of the terminal device can be reduced, and the power consumption of the terminal device can be saved.

[0136] It should be noted that the subgroup information transmission method provided by the embodiment of the present application can be applied to the scenario of waking up the subgroup in the idle or inactive state, and can also be applied to the scenario of waking up the subgroup in the connected state. When the method is applied to the scenario of waking up the subgroup in the idle or inactive state, for the paging service, the “woken-up subgroup” can reuse the concept of “paging subgroup”. It can be understood that the method is not limited to the paging service, but can also be applied to other services, which can be determined according to actual use requirements, and the embodiment of the present application is not limited.

[0137] The sub-group information transmission method provided by the embodiments of the present application can be applied to a communication system 11 as shown in FIG. 2 or other possible communication systems, and the embodiments of the present application do not limit this. The communication system can include at least one network device and at least one terminal device connected with the network device. The network device and the terminal device can perform uplink (UL) data and downlink (DL) data transmission.

[0138] In a specific implementation, the network device or the terminal device can have the components shown in FIG. 12.

[0139] Exemplarily, FIG. 12 is a schematic diagram of a hardware structure of a communication apparatus provided by the embodiments of the present application. As shown in FIG. 12, the communication apparatus 1200 includes at least one processor 1201, a communication line 1202 and at least one communication interface 1203. Further, the communication apparatus 1200 can also include a memory 1204. The processor 1201, the memory 1204 and the communication interface 1203 can be connected through the communication line 1202.

[0140] The processor 1201 can be a central processing unit (CPU), a network processor (NP) or a combination of the CPU and the NP. The processor 1201 can further include a hardware chip. The hardware chip can be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The PLD can be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL) or any combination thereof. The processor can also be any other device with processing function, such as a circuit, a device or a software module, etc.

[0141] The communication line 1202 can include a path for transmitting information between the components included in the communication apparatus.

[0142] The communication interface 1203 can be used to communicate with other devices or communication networks (such as Internet of Things, satellite communication, Ethernet, radio access network (RAN), and wireless local area networks (WLAN), etc.). The communication interface 1203 can be a module, a circuit, a transceiver, or any device capable of communication.

[0143] The memory 1204 can be a read-only memory (ROM) or other type of static storage device that can store static information and / or instructions, or a random access memory (RAM) or other type of dynamic storage device that can store information and / or instructions, or an electrically erasable programmable read-only memory (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disk storage, a magnetic disk storage or other magnetic storage devices, or any other medium capable of carrying or storing desired program code in the form of instructions or data structures and that can be accessed by a computer.

[0144] In a possible design, the memory 1204 can exist independently of the processor 1201, that is, the memory 1204 can be an external memory of the processor 1201, and the memory 1204 can be connected to the processor 1201 through the communication line 1202 and used to store instructions or program code. When the processor 1201 invokes and executes the instructions or program code stored in the memory 1204, the sub-group information transmission method provided in the embodiments described below can be implemented. In another possible design, the memory 1204 can also be integrated with the processor 1201, that is, the memory 1204 can be an internal memory of the processor 1201, for example, the memory 1204 is a cache and can be used to temporarily store some data and / or instruction information, etc.

[0145] As an implementation, the processor 1201 can include one or more CPUs, such as CPU0 and CPU1 in FIG. 12. As another implementation, the communication apparatus 1200 can include multiple processors, such as the processor 1201 and the processor 1207 in FIG. 12. As still another implementation, the communication apparatus 1200 can further include an output device 1205 and an input device 1206. For example, the input device 1206 can be a keyboard, a mouse, a microphone, or a joystick, and the output device 1205 can be a display screen or a speaker.

[0146] It should be noted that the communication apparatus 1200 can be a general-purpose device or a special-purpose device. For example, the communication apparatus 1200 can be a base station, a mobile phone, a desktop computer, a laptop computer, a network server, a tablet computer, an embedded device, a chip system, or a device having a similar structure as shown in FIG. 12. The embodiments of the present application do not limit the type of the communication apparatus 1200.

[0147] The sub-group information transmission method provided by the embodiments of the present application will be described below. In the following method embodiments, each device mentioned can have the components shown in FIG. 12, which will not be described again.

[0148] FIG. 13 is a flow diagram of a sub-group information transmission method according to an embodiment of the present application.

[0149] As shown in FIG. 13, the method can include the following S101-S104.

[0150] S101, the network device sends LPWUS information in at least one MO through a first beam.

[0151] According to the description of the above embodiments, the sub-group information transmission method provided by the embodiments of the present application can be applied to the scenario of waking up a sub-group in an idle or inactive state, and can also be applied to the scenario of waking up a sub-group in a connected state.

[0152] When the method is applied to the scenario of waking up a sub-group in an idle or inactive state, the first beam is any one of the beams covered by the network device, and the network device can sequentially scan on each beam, that is, the network device sends LPWUS information for activating the woken-up sub-group on each beam according to the sub-group information transmission method provided by the embodiments of the present application.

[0153] When the method is applied to the scenario of waking up a sub-group in a connected state, the first beam is a beam corresponding to the coverage range of the UE, and the network device can send LPWUS information in at least one MO through only the first beam.

[0154] In some embodiments, for any one beam in one LO, each beam corresponds to X MOs respectively, and each MO in the X MOs can be used to send the LPWUS information.

[0155] In some embodiments, X is predefined or determined according to network configuration. X is a positive integer, thereby allowing the network device to send the LPWUS information of one or more wake-up subgroups on one or more MOs of one beam.

[0156] In some embodiments, Y is an integer greater than or equal to 0. Y is greater than or equal to the number of wake-up subgroups. For example, when Y = 0, the number of wake-up subgroups is 0; when Y = 1, the number of wake-up subgroups is 1. Each subgroup in the wake-up subgroup corresponds to a codepoint value, and different subgroups correspond to different codepoint values. That is, the network device can send the LPWUS information in the first Y MOs of the X MOs through the first beam according to the number of wake-up subgroups.

[0157] In some embodiments, the at least one MO is the first Y MOs of the X MOs, and Y is an integer less than or equal to X. As shown in FIG. 14, when there are Y subgroups that need to be activated, the terminal device can send the LPWUS information of the Y subgroups on MO1, MO2, …, MOY through beam 1.

[0158] In some embodiments, the LPWUS information sent in each MO can be used to indicate the codepoint value of one subgroup in the wake-up subgroup. As an example, the LPWUS information sent in each MO can include a preamble, a codepoint value, and cyclic redundancy check (CRC) scrambling information. The preamble is used to synchronize the transmission signals of the sending end and the receiving end, the codepoint value is used to indicate the wake-up subgroup, and the CRC scrambling information is used for error correction check of the preamble.

[0159] In some embodiments, the codepoint values sent in the first Y MOs of the X MOs are arranged in a preset order. The preset order can be predefined or configured by the network device. The preset order is from small to large or from large to small.

[0160] For example, if the preset rule or the rule configured by the network is that the code point values are arranged in ascending order, the sending priorities of the eight code point values from high to low are 000, 001, 010, 011, 100, 101, 110, and 111 in turn. Correspondingly, the terminal device can determine the detection strategy based on the preset rule or the rule configured by the network: if the code point value detected by the terminal device is greater than the code point value of the sub-group to which the terminal device belongs, the terminal device terminates the detection of the subsequent MO of the first beam; if the code point value detected by the terminal device is equal to the code point value of the sub-group to which the terminal device belongs, the terminal device wakes up and establishes a service; and if the code point value detected by the terminal device is less than the code point value of the sub-group to which the terminal device belongs, the terminal device can continue to detect the subsequent MO of the first beam.

[0161] For example, FIG. 15 shows a diagram of sending code point values in descending order. As shown in FIG. 15, if the awakened sub-groups are the first, fourth, and seventh sub-groups, the network device can send the code point value 000 of the first sub-group in MO1, the code point value 011 of the fourth sub-group in MO2, and the code point value 110 of the seventh sub-group in MO3 in ascending order. If the code point value of the sub-group to which the terminal device belongs is 000, and the code point value 000 is detected in MO1, the terminal device wakes up and establishes a service. If the code point value of the sub-group to which the terminal device belongs is greater than 000, the terminal device continues to detect in MO2.

[0162] Further, if the code point value of the sub-group to which the terminal device belongs is 001 or 010, and the code point value 011 is detected in MO2, the terminal device stops detecting MO3. If the code point value of the sub-group to which the terminal device belongs is 011, and the code point value 011 is detected in MO2, the terminal device wakes up and establishes a service. If the code point value of the sub-group to which the terminal device belongs is greater than 011, the terminal device continues to detect in MO3.

[0163] Further, if the codepoint value of the sub-group to which the terminal device belongs is 100 or 101, and MO3 detects the codepoint value 110, the terminal device stops detecting MO4. If the codepoint value of the sub-group to which the terminal device belongs is 110, and MO3 detects the codepoint value 110, the terminal device wakes up and establishes service. If the codepoint value of the sub-group to which the terminal device belongs is 111, and the terminal device does not know the number of MOs used to send the LPWUS information, the terminal device continues to detect MO4. If the codepoint value of the sub-group to which the terminal device belongs is 111, and the terminal device knows the number of MOs used to send the LPWUS information (for example, 3), the terminal device stops detecting MO4.

[0164] In some embodiments, the indication information of the first MO of the at least one MO is used to indicate at least one of the following:

[0165] (1) The first MO is the last MO of the at least one MO in the first beam.

[0166] When the first MO is the last MO of the MOs used to send the LPWUS information in the first beam, the indication information of the first MO can inform the terminal device that the current MO is the last MO of the MOs used to send the LPWUS information in the first beam, and the network device will not send the LPWUS information in the subsequent MOs of the first beam, so that the terminal device can stop detecting the subsequent MOs of the first beam, thereby reducing the power consumption of the terminal device.

[0167] For specific implementation of (1), refer to the description of the following embodiment 1, which will not be repeated here.

[0168] (2) The number of codepoint values sent through the at least one MO. Wherein, the first MO is any one or more of the at least one MO. For example, the first MO is the first MO or all MOs of the at least one MO.

[0169] By indicating the number of codepoint values sent through the at least one MO in the first MO, the terminal device can infer whether the previous codepoint values are indicated or whether the subsequent MOs are used to send the codepoint values according to the codepoint values that have been detected by the current MO, and then determine whether to detect the subsequent MOs of the first beam.

[0170] For specific implementation of (2), refer to the description of the following embodiments 2 to 7, which will not be repeated here.

[0171] As an example, for the case where Y is equal to the number of the awakened sub-groups, the indication information of the first MO can be specifically used to indicate the number of non-repeated codepoint values sent through the first Y MOs.

[0172] That is, the Y codepoint values sent by the first Y MOs are all different.

[0173] Exemplarily, FIG. 16 shows a schematic diagram of the non-repeated codepoint values sent by the first Y MOs. As shown in FIG. 16, when the network device wakes up the terminal devices of the 1st, 4th and 7th subgroups, the codepoint value 000 of the 1st subgroup can be sent by MO1, the codepoint value 011 of the 4th subgroup can be sent by MO2, and the codepoint value 110 of the 7th subgroup can be sent by MO3, and the codepoint values sent by the three MOs are all different.

[0174] As another example, for the case that Y is greater than the number of the woken-up subgroups, the indication information of the first MO specifically indicates the number of the repeated codepoint values and the non-repeated codepoint values sent by the first Y MOs.

[0175] That is, the Y codepoint values sent by the Y MOs are partially the same.

[0176] Exemplarily, FIG. 17 shows a schematic diagram of the repeated and non-repeated codepoint values sent by the first Y MOs. As shown in FIG. 17, when the network device wakes up the terminal devices of the 1st, 4th and 7th subgroups, the codepoint value 000 of the 1st subgroup can be sent by MO1 and MO2 respectively, the codepoint value 011 of the 4th subgroup can be sent by MO3 and MO4 respectively, and the codepoint value 110 of the 7th subgroup can be sent by MO5 and MO6 respectively, and the codepoint values sent by the six MOs are partially the same.

[0177] S102, the terminal device detects the MO of the first beam.

[0178] S103, the terminal device detects the first LPWUS information in the first MO of the first beam, and the first LPWUS information is used to indicate the codepoint value of one subgroup in the woken-up subgroups.

[0179] S104, the terminal device determines whether to detect the subsequent MO of the first beam based on the indication information of the first MO, and the indication information of the first MO includes the decoding result of the first LPWUS information.

[0180] Exemplarily, the terminal device starts to detect the LPWUS information from the first MO of the first beam. When the first LPWUS information is detected in the first MO of the first beam, the first LPWUS information can be decoded to obtain the decoding result of the first LPWUS information, and the decoding result of the first LPWUS information can at least include the codepoint value of one woken-up subgroup. Then the terminal device can determine whether to detect the subsequent MO of the first beam based on the indication information of the first MO.

[0181] In some embodiments, the indication information of the first MO can be at least one of the following:

[0182] ① The indication information of the first MO is a termination end symbol placed after the LPWUS information of the first MO, and the termination end symbol is used to indicate that the first MO is the last MO in the at least one MO under the first beam.

[0183] ② The first MO is the first MO of the at least one MO, the indication information of the first MO is carried in the LPWUS information of the first MO, and the indication information of the first MO is used to indicate the number of code point values transmitted by the at least one MO.

[0184] ③ The first MO is the first MO of the at least one MO, the indication information of the first MO is the time domain offset of the first MO, the time domain offset is used to indicate the number of code point values transmitted by the at least one MO, and the time domain offset is the time deviation of the starting time of the first MO from a preset reference point.

[0185] ④ The first MO is the first MO of the at least one MO, the indication information of the first MO is the preamble sequence of the LPWUS information of the first MO or the overlaid sequence of the preamble sequence, and the preamble sequence of the LPWUS information of the first MO or the overlaid sequence of the preamble sequence is used to indicate the number of code point values transmitted by the at least one MO, and different preamble sequences or overlaid sequences of different preamble sequences are used to indicate different numbers of code point values.

[0186] ⑤ The indication information of the first MO is the preamble sequence of the LPWUS information of the first MO or the overlaid sequence of the preamble sequence, and the preamble sequence of the LPWUS information of the first MO or the overlaid sequence of the preamble sequence is the first sequence, and the first sequence is used to indicate that the first MO is the last MO in the at least one MO under the first beam.

[0187] ⑥ The first MO is the first MO of the at least one MO, the indication information of the first MO is carried in the scrambling information of the LPWUS information of the first MO, the indication information of the first MO is used to indicate the number of code point values transmitted by the at least one MO, and the scrambling information of the LPWUS information includes at least one of the following: scrambling information of data of the LPWUS, and CRC scrambling information of the LPWUS.

[0188] The first MO is the first MO of the at least one MO, the indication information of the first MO is an overlaid sequence of the LPWUS information of the first MO, and the overlaid sequence of the LPWUS information of the first MO is used to indicate a number of code point values sent through the at least one MO, and different overlaid sequences are used to indicate different numbers of code point values.

[0189] For specific implementation manners of the above seven indication information, refer to the descriptions of the following embodiments 1 to 7.

[0190] In the above sub-group information transmission method provided by the embodiments of the present application, when the network device sends the LPWUS information in at least one MO of the X MOs, the network device can indicate at least one of the following through the first MO in the at least one MO: the first MO is the last MO in the at least one MO under the first beam, and the number of code point values sent through the at least one MO. When detecting the MO of the first beam, the terminal device can determine whether to detect the subsequent MO of the first beam according to the received indication information of the first MO and the decoding result of the LPWUS information. For example, when the first MO is the last MO in the at least one MO, the terminal device can stop detecting the subsequent MO. In this way, the detection time of the terminal device can be reduced, and the power consumption of the terminal device can be saved.

[0191] In order to facilitate understanding, the following describes the specific implementation manners of the network device sending the LPWUS information and the terminal device receiving the LPWUS information in the process of implementing the sub-group information transmission method provided by the embodiments of the present application, in combination with a plurality of embodiments.

[0192] Embodiment 1: Introducing a termination end symbol at the last MO of the at least one MO.

[0193] In this embodiment, the first MO is the last MO of the at least one MO, and the indication information of the first MO is a termination end symbol placed in the first MO, which is used to indicate that the first MO is the last MO in the at least one MO under the first beam.

[0194] In some embodiments, the interaction process of the network device and the terminal device is as follows:

[0195] Step 1: The network device sends the LPWUS information in the first Y MOs of the X MOs through the first beam according to the number of the awakened sub-group, and places a termination end symbol after the LPWUS information of the last MO in the first Y MOs.

[0196] In some embodiments, the LPWUS information sent in the first Y MOs indicates the codepoint value of the wake-up sub-group, and the network device can send the codepoint values in the first Y MOs in ascending order, and place a termination end symbol after the LPWUS information of the last MO in the first Y MOs.

[0197] Step 2, the terminal device detects the MO of the first beam.

[0198] Step 3, the terminal device detects the first LPWUS information in the first MO of the first beam, and decodes the first LPWUS information, the first LPWUS information being used to indicate the codepoint value of one of the wake-up sub-groups.

[0199] In some embodiments, the first LPWUS information can include a preamble, a codepoint value, and CRC scrambling information.

[0200] Step 4, if the terminal device detects a termination end symbol after the first LPWUS information, the terminal device determines not to detect the subsequent MO of the first beam.

[0201] In some embodiments, the termination end symbol is not the LPWUS information of the first MO, for example, the termination end symbol is placed after the LPWUS information of the first MO.

[0202] For example, FIG. 18 shows a schematic diagram of the termination end symbol placed in the last MO. As shown in FIG. 18, if the wake-up sub-groups are the 2nd sub-group and the 4th sub-group, the network device can send the codepoint value 001 of the 2nd sub-group in MO1 and the codepoint value 011 of the 4th sub-group in MO2 in ascending order.

[0203] For MO1: if the codepoint value of the sub-group to which the terminal device belongs is 000, the terminal device stops detecting MO2. If the codepoint value of the sub-group to which the terminal device belongs is 001, the terminal device wakes up and establishes a service. If the codepoint value of the sub-group to which the terminal device belongs is greater than 001, the terminal device continues to detect MO2.

[0204] For MO1: since the terminal device detects a termination end symbol in MO2, the terminal device stops detecting MO3 regardless of the codepoint value of the sub-group to which the terminal device belongs. Further, when the codepoint value of the sub-group to which the terminal device belongs is 011, the terminal device can also wake up and establish a service.

[0205] It should be noted that the above embodiments are described by taking the network device sending the LPWUS information in the order of the code point value from small to large, and placing a termination end symbol after the LPWUS information of the last MO as an example, which does not limit the present application. In other embodiments, the network device can also send the LPWUS information in the order of the code point value from large to small, and place a termination end symbol after the LPWUS information of the last MO; or the network device can send the LPWUS information of the wake-up sub-group in a random order in the first Y MOs, and place a termination end symbol after the LPWUS information of the last MO.

[0206] In the above embodiments, when the first MO is the last MO in the MOs for sending the LPWUS information in the first beam, by setting a termination end symbol in the first MO, the terminal device can be informed that the current MO is the last MO in the MOs for sending the LPWUS information in the first beam, and the network device will not send the LPWUS information in the subsequent MOs of the first beam, so that the terminal device can stop detecting the subsequent MOs of the first beam, thereby reducing the power consumption of the terminal device.

[0207] Embodiment 2: N1 bits are added in the LPWUS information of the first MO, which is used to indicate the number of code points sent.

[0208] In this embodiment, the first MO is the first MO of the at least one MO, and the indication information of the first MO is carried in the LPWUS information of the first MO. The indication information can be used to indicate the number of code point values sent through the at least one MO. For example, an information field of N1 bits is added in the LPWUS information of the first MO, and the value of the information field can be used to indicate the number of code point values sent through the at least one MO. Wherein, N1 is a positive integer.

[0209] In some embodiments, the indication information of N1 bits is placed in any position in the LPWUS information of the first MO.

[0210] Exemplarily, FIG. 19 shows a schematic diagram of N1 bits and code point values. As shown in FIG. 19, the indication information of N1 bits can be placed in front of the code point values; or the indication information of N1 bits can be placed behind the code point values; or the indication information of N1 bits can be placed in the middle of the code point values.

[0211] In some embodiments, the indication information of N1 bits is encoded together with the code point value of the first MO or independently encoded.

[0212] In some embodiments, the number of codepoint values sent through the at least one MO is divided into two cases: one case is that the codepoint values sent through the at least one MO only include non-repeated codepoint values; the other case is that the codepoint values sent through the at least one MO include repeated codepoint values and non-repeated codepoint values.

[0213] In some embodiments, the network device can set an information field in each MO of the at least one MO, and the information field of each MO can be used to indicate that the codepoint value of the next MO is a repeated codepoint value, or the codepoint value of the next MO is a non-repeated codepoint value, or no codepoint value will be sent subsequently.

[0214] In some embodiments, the interaction process between the network device and the terminal device is as follows:

[0215] Step 1: The network device sends LPWUS information in the first Y MOs of the X MOs through the first beam according to the number of the awakened subgroups, and carries indication information in the LPWUS information of the first MO in the first Y MOs. The indication information can be used to indicate the number of codepoint values sent through the first Y MOs.

[0216] In some embodiments, the LPWUS information sent in the first Y MOs indicates the codepoint values of the subgroups, and the network device can send the codepoint values in the first Y MOs in ascending order, and place a termination end symbol after the LPWUS information of the last MO in the first Y MOs.

[0217] Step 2: The terminal device detects the MO of the first beam.

[0218] Step 3: The terminal device detects the first LPWUS information in the first MO of the first beam, and decodes the first LPWUS information to obtain the codepoint value and the indication information of a subgroup.

[0219] In some embodiments, the first LPWUS information can include a preamble, a codepoint value, and CRC scrambling information.

[0220] Step 4: The terminal device determines whether to detect the subsequent MO of the first beam based on the codepoint value of a subgroup and the number of codepoint values sent through the at least one MO.

[0221] Exemplarily, FIG. 20 shows a schematic diagram of N1 bits of indication information. As shown in FIG. 20, the N1 bits of indication information and 3 bits of codepoint value are carried in the LPWUS information of MO1. The N1 bits of indication information are used to indicate 2 non-repeated codepoint values sent in the first 2 MOs. The network device sends the codepoint value 011 in MO1 and the codepoint value 110 in MO2. In this way, after the terminal device detects the indication information, the terminal device can only detect MO1 and MO2, and does not need to detect subsequent MOs, thereby reducing the power consumption of the terminal device.

[0222] When one information field is respectively arranged in each of the at least one MO, and the information field of each MO is used to indicate that the codepoint value of the next MO is a repeated codepoint value, or the codepoint value of the next MO is a non-repeated codepoint value, or no codepoint value is sent subsequently, after it is determined to detect the subsequent MO of the first beam, the method can further include: decoding the information field of each MO; and determining whether to detect the subsequent MO of the first beam based on the decoding result of the information field of the current MO, the decoding result of the LPWUS information of the current MO, and the number of codepoint values sent through the at least one MO.

[0223] Exemplarily, FIG. 21 shows a schematic diagram in which one information field is respectively arranged in each of the first Y MOs. As shown in FIG. 21, the N1 bits of indication information and 3 bits of codepoint value are carried in the LPWUS information of MO1. The N1 bits of indication information are used to indicate 2 non-repeated codepoint values sent in the first 2 MOs. The network device sends the codepoint value 011 in MO1, the codepoint value 011 in MO2, and the codepoint value 110 in MO2. The information field of MO1 indicates that the codepoint value of the next MO is a repeated codepoint value, the information field of MO2 indicates that the codepoint value of the next MO is a non-repeated codepoint value, and the information field of MO3 indicates that no codepoint value is sent subsequently. Taking the codepoint value 111 of the terminal device as an example, when the terminal device detects the information field in MO1 but successfully decodes the LPWUS, the terminal device can skip MO2 and detect MO3; when the terminal device detects the information field in MO1 but fails to decode the LPWUS, the terminal device can detect MO2, and when the terminal device successfully decodes the LPWUS in MO2, the terminal device can detect MO3; and when the terminal device detects the information field in MO3, the terminal device does not need to detect subsequent MOs regardless of whether the LPWUS is successfully decoded.

[0224] In the above embodiment, by adding N1 bits in the LPWUS information of the first MO to indicate the number of code points sent, the terminal device can determine the number of code points to be received based on the N1 bits, and only detect the first Y MOs corresponding to the code points, without having to detect the X MOs one by one, thereby reducing the power consumption of the terminal device and shortening the detection time.

[0225] Embodiment 3: According to the different time domain offset values, the number of actual transmitted code points is indicated.

[0226] In this embodiment, the first MO is the first MO of the at least one MO, and the indication information of the first MO is the time domain offset of the first MO, which is used to indicate the number of code point values sent by the at least one MO. The time domain offset is the time difference between the starting time of the first MO and the preset reference point.

[0227] In some embodiments, the preset reference point is predefined or determined according to network configuration.

[0228] In some embodiments, different numbers of woken-up subgroups correspond to different time domain offsets.

[0229] For example, FIG. 22 shows a schematic diagram of different numbers of woken-up subgroups corresponding to different time domain offsets. As shown in FIG. 22, MO1 represents the first MO, offset1 represents the time domain offset corresponding to Y=1 MO, offset2 represents the time domain offset corresponding to Y=2 MOs, offset3 represents the time domain offset corresponding to Y=3 MOs, offset4 represents the time domain offset corresponding to Y=4 MOs, offset5 represents the time domain offset corresponding to Y=5 MOs, offset6 represents the time domain offset corresponding to Y=6 MOs, offset7 represents the time domain offset corresponding to Y=7 MOs, and offset8 represents the time domain offset corresponding to Y=8 MOs. Wherein, Y is the number of woken-up subgroups.

[0230] In some embodiments, the interaction process between the network device and the terminal device is as follows:

[0231] Step 1: The network device determines a first time domain offset according to the number of woken-up subgroups, and sends LPWUS information in at least one MO through a first beam at a time point of the first time domain offset from the preset reference point as the starting time.

[0232] In some embodiments, the LPWUS information sent in the first Y MOs indicates the code point values of the subgroups, and the network device can send the code point values in the first Y MOs in ascending order.

[0233] Step 2, the terminal device detects the first MO based on different time domain offsets, wherein the time domain offset is a time difference between a starting time of the first MO and a preset reference point, and the different time domain offsets are used to indicate different numbers of code point values.

[0234] Step 3, the terminal device detects the first LPWUS information at the time of the first time domain offset from the preset reference point in the first MO, and decodes the first LPWUS information to obtain a code point value of a sub-group.

[0235] In some embodiments, the first LPWUS information can include a preamble, a code point value, and CRC scrambling information.

[0236] Step 4, the terminal device determines whether to detect a subsequent MO of the first beam based on the number of code point values indicated by the first time domain offset and the decoding result of the first LPWUS information.

[0237] Exemplarily, FIG. 23 shows a schematic diagram of indicating the number of code point values of the awakened sub-group based on the time domain offset. As shown in FIG. 23, when the network device wakes up the terminal devices of the 3rd sub-group and the 5th sub-group, the code point value 010 can be sent at MO1 and the code point value 100 can be sent at MO2 with the time of the time domain offset offset2 from the preset reference point as the starting time. If the terminal device detects the first LPWUS information at MO1 at the time of the time domain offset offset2' from the preset reference point, and decodes the first LPWUS information to obtain the code point value 010. Since the time domain offset offset2 indicates 2 code point values, the terminal device can determine whether to detect MO2 based on the code point value 100. For example, if the code point value of the sub-group to which the terminal device belongs is less than 010, the terminal device does not detect MO2; if the code point value of the sub-group to which the terminal device belongs is equal to 010, the terminal device wakes up and establishes a service; and if the code point value of the sub-group to which the terminal device belongs is greater than 010, the terminal device continues to detect MO2. It should be noted that no matter what the detection result of MO2 is, the terminal device stops detecting MO3.

[0238] In the above example, offset2' meets any one of the following conditions: 1, offset1 < offset2' ≤ offset2; 2, offset2 ≤ offset2' < offset3; 3, |offset2'-offset2| ≤ Δ, Δ is a preset deviation value. It can be understood that for the way of determining the actual time domain offset offseti' according to the preset time domain offset offseti, it is similar to the way of determining the actual time domain offset offset2' according to the preset time domain offset offset2, which will not be described here. Wherein, i is a positive integer.

[0239] In the above embodiments, by configuring different time domain offsets, the network device can indicate the number of code point values sent by controlling the time domain offset, so that the network device can detect the MO based on different time domain offsets, and obtain the number of code points actually sent according to different time domain offsets, to assist subsequent detection. Since at most only the first Y MOs are detected, and the X MOs do not have to be detected in turn, the power consumption of the terminal device is reduced, and the detection time is shortened.

[0240] Embodiment 4: The number of code points sent is carried according to the sequence information of the preamble and / or the overlaid sequence information of the preamble sequence.

[0241] In this embodiment, the first MO is the first MO of the at least one MO, and the indication information of the first MO is the preamble sequence of the LPWUS information of the first MO or the overlaid sequence of the preamble sequence. The preamble sequence or the overlaid sequence of the preamble sequence of the LPWUS information of the first MO is used to indicate the number of code point values sent by the at least one MO. Different preamble sequences or different overlaid sequences of the preamble sequence are used to indicate different numbers of code point values.

[0242] In some embodiments, different preamble sequences or different overlaid sequences of the preamble sequence are used to indicate different numbers of code point values, including any one of the following:

[0243] ① Different preamble sequences are used to indicate different numbers of code point values, wherein different preamble sequences refer to different sequence values of the preamble sequence, for example, the preamble sequence 0000 is used to indicate that no code point value is carried (i.e., the preamble sequence is a traditional preamble sequence and does not have the function of indicating the number of code point values sent by the at least one MO), the preamble sequence 0001 is used to indicate that 1 code point value is carried, the preamble sequence 0010 is used to indicate that 2 code point values are carried, and the preamble sequence 0011 is used to indicate that 3 code point values are carried.

[0244] ② Different sequence categories of the preamble sequence are used to indicate different numbers of code point values.

[0245] ③ Different overlaid sequences of the preamble sequence are used to indicate different numbers of code point values.

[0246] ④ Different sequence categories of the overlaid sequence of the preamble sequence are used to indicate different numbers of code point values.

[0247] In some embodiments, the preamble sequence of the LPWUS information of each of the at least one MO or the overlaid sequence of the preamble sequence is used to indicate the number of codepoint values transmitted through the at least one MO.

[0248] For example, FIG. 24 shows a schematic diagram of indicating the number of codepoint values through the preamble sequence. As shown in FIG. 24, the network device transmits the preamble sequence 1 in MO1, the preamble sequence 2 in MO2, and the preamble sequence 2 in MO3. Among them, the preamble sequence 1 adopts one sequence value, such as 0011, to indicate 3 codepoint values transmitted through the first 3 MOs; the preamble sequence 2 adopts another sequence value, such as 0000, which does not have the function of indicating the number of codepoint values transmitted through the at least one MO.

[0249] For example, FIG. 25 shows another schematic diagram of indicating the number of codepoint values through the preamble sequence. As shown in FIG. 25, the network device transmits the preamble sequence 1 in MO1, MO2 and MO3. Among them, the preamble sequence 1 adopts one sequence value, such as 0011, to indicate 3 codepoint values transmitted through the first 3 MOs.

[0250] In some embodiments, the interaction process between the network device and the terminal device is as follows:

[0251] Step 1, the network device transmits the LPWUS information in the first Y MOs of the X MOs through the first beam according to the number of the awakened subgroups, and carries the indication information in the preamble sequence of the LPWUS information of the first MO of the first Y MOs or the overlaid sequence of the preamble sequence, which can be used to indicate the number of codepoint values transmitted through the first Y MOs.

[0252] In some embodiments, the LPWUS information transmitted in the first Y MOs indicates the codepoint values of the subgroup, and the network device can transmit the codepoint values in the first Y MOs in ascending order.

[0253] Step 2, the terminal device detects the MO of the first beam.

[0254] Step 3, the terminal device detects the first LPWUS information in the first MO of the first beam and decodes the first LPWUS information to obtain the codepoint value of one subgroup and the indication information, which is the preamble sequence of the first LPWUS information or the overlaid sequence of the preamble sequence, which can be used to indicate the number of codepoint values transmitted through the at least one MO.

[0255] In some embodiments, the first LPWUS information can include the preamble, the codepoint value and the CRC scrambling information.

[0256] Step 4, the terminal device determines whether to detect the subsequent MO of the first beam based on the codepoint value of the one sub-group and the number of codepoint values sent through the at least one MO.

[0257] For specific implementation of step 4, refer to the description of the above embodiments, which will not be repeated here.

[0258] In the above embodiments, the network device can carry the number of sent codepoints by using the sequence information of the preamble of the LPWUS and / or the overlaid sequence information of the preamble sequence, so that the terminal device can determine the number of codepoints to be received based on the sequence information of the preamble and / or the overlaid sequence information of the preamble sequence. Since the terminal device only detects at most the first Y MOs, and does not have to detect the X MOs one by one, the power consumption of the terminal device is reduced, and the detection time is shortened.

[0259] Embodiment 5: according to the sequence information of the preamble and / or the overlaid sequence information of the preamble sequence, indicating that the first MO is the last MO in the at least one MO under the first beam.

[0260] In this embodiment, the first MO is the last MO of the at least one MO, and the indication information of the first MO is the preamble sequence of the LPWUS information of the first MO or the overlaid sequence of the preamble sequence, and the preamble sequence of the LPWUS information of the first MO or the overlaid sequence of the preamble sequence is the first sequence, and the first sequence is used to indicate that the first MO is the last MO in the at least one MO under the first beam.

[0261] Exemplarily, FIG. 26 shows a schematic diagram of indicating the last MO by the preamble sequence. As shown in FIG. 26, the network device sends the preamble sequence a in MO1, sends the preamble sequence a in MO2, and sends the preamble sequence b in MO3. Wherein, the preamble sequence a adopts one sequence value, such as 00, which is a traditional preamble sequence; the preamble sequence b adopts another sequence value, such as 11, which is used to indicate that the first MO is the last MO in the at least one MO under the first beam.

[0262] In some embodiments, the interaction process between the network device and the terminal device is as follows:

[0263] Step 1, the network device sends LPWUS information in the first Y MOs of the X MOs through the first beam according to the number of the woken subgroups, and carries indication information in the preamble sequence of the LPWUS information of the first MO in the first Y MOs or the overlaid sequence of the preamble sequence, which can be used to indicate the number of code point values sent through the first Y MOs.

[0264] In some embodiments, the LPWUS information sent in the first Y MOs indicates the code point values of the subgroups, and the network device can send the code point values in the first Y MOs in ascending order.

[0265] Step 2, the terminal device detects the MO of the first beam.

[0266] Step 3, the terminal device detects the first LPWUS information in the first MO of the first beam, and decodes the first LPWUS information to obtain the code point value of a subgroup and indication information, which is the preamble sequence of the first LPWUS information or the overlaid sequence of the preamble sequence, the preamble sequence of the first LPWUS information or the overlaid sequence of the preamble sequence is the first sequence, and the first sequence is used to indicate that the first MO is the last MO in at least one MO under the first beam.

[0267] In some embodiments, the first LPWUS information can include a preamble, a code point value and CRC scrambling information.

[0268] Step 4, the terminal device determines not to detect the subsequent MO of the first beam based on the code point value of a subgroup and the number of code point values sent through at least one MO.

[0269] For specific implementation of step 4, refer to the description of the above embodiments, which will not be repeated here.

[0270] In the above embodiments, when the first MO is the last MO in the MOs used to send LPWUS information under the first beam, the sequence information of the preamble of the first MO and / or the overlaid sequence information of the preamble sequence can be used to indicate the terminal device that the first MO is the last MO in at least one MO under the first beam, and the network device will not send LPWUS information in the subsequent MO of the first beam, so that the terminal device can stop detecting the subsequent MO of the first beam, thereby reducing the power consumption of the terminal device.

[0271] Embodiment 6: According to the data scrambling information or the CRC scrambling information of the LPWUS, the number of code point sent is indicated.

[0272] In the embodiment, the first MO is the first MO of the at least one MO, the indication information of the first MO is carried in the scrambling information of the LPWUS information of the first MO, and the indication information of the first MO is used to indicate the number of code point values sent through the at least one MO.

[0273] In some embodiments, the scrambling information of the LPWUS information includes at least one of the following:

[0274] scrambling information of data of the LPWUS, which can be a code point value of the awakened sub-group;

[0275] CRC scrambling information of the LPWUS.

[0276] In some embodiments, the indication information is carried in the scrambling information of the LPWUS information of each of the first Y MOs, and the indication information is used to indicate the number of code point values sent through the first Y MOs.

[0277] For example, FIG. 27 shows a schematic diagram of indicating the number of code point values by using a CRC sequence. As shown in FIG. 27, the network device can indicate the code point values sent through the three MOs in the scrambling information of the LPWUS information of MO1, MO2 and MO3. In this way, the terminal device can only detect MO1, MO2 and MO3. It should be noted that as another possible implementation, the network device can only indicate the code point values sent through the three MOs in the scrambling information of the LPWUS information of MO1, and the scrambling information of the LPWUS information of MO2 and MO3 does not carry the number of code point values.

[0278] In some embodiments, the interaction process between the network device and the terminal device is as follows:

[0279] Step 1: The network device sends the LPWUS information in the first Y MOs of the X MOs through the first beam according to the number of the awakened sub-group, and carries the indication information in the scrambling information of the LPWUS information of the first MO of the first Y MOs, which can be used to indicate the number of code point values sent through the at least one MO.

[0280] In some embodiments, the LPWUS information sent in the first Y MOs indicates the code point values of the sub-group, and the network device can send the code point values in the first Y MOs in ascending order.

[0281] Step 2: The terminal device detects the MO of the first beam.

[0282] Step 3, the terminal device detects the first LPWUS information in the first MO of the first beam, and decodes the first LPWUS information to obtain a sub-group of code point values and indication information, the indication information being scrambling information of the LPWUS information, the scrambling information being used to indicate the number of code point values sent through the at least one MO, the scrambling information of the LPWUS information including at least one of the following: scrambling information of data of the LPWUS, cyclic redundancy check (CRC) scrambling information of the LPWUS.

[0283] Step 4, the terminal device determines whether to detect a subsequent MO of the first beam based on the sub-group of code point values and the number of code point values sent through the at least one MO.

[0284] For specific implementation manners of Step 4, refer to the description of the above-mentioned embodiments, which will not be described here.

[0285] In the above-mentioned embodiments, the network device can carry the number of sent code points by using the scrambling information of the LPWUS, so that the terminal device can determine the number of code points to be received based on the descrambling result of the scrambling information of the LPWUS. Since the terminal device only detects the first Y MOs at most, and does not have to detect the X MOs one by one, the power consumption of the terminal device is reduced, and the detection time is shortened.

[0286] Embodiment 7: carrying the number of sent code points in the overlaid sequence information of the LPWUS.

[0287] In this embodiment, the first MO is the first MO of the at least one MO, and the indication information of the first MO is the overlaid sequence of the LPWUS information of the first MO, the overlaid sequence of the LPWUS information of the first MO being used to indicate the number of code point values sent through the at least one MO, and different overlaid sequences being used to indicate different numbers of code point values.

[0288] It should be noted that the difference between Embodiment 7 and Embodiment 4 is that Embodiment 4 carries the number of sent code points in the overlaid sequence information of the preamble sequence of the LPWUS, and Embodiment 7 carries the number of sent code points in the overlaid sequence information of the LPWUS. The two kinds of overlaid sequences are respectively used to modulate the preamble sequence and the LPWUS to generate the finally sent signal, but both the two kinds of overlaid sequences can be used to indicate different numbers of code point values.

[0289] In some embodiments, the interaction process between the network device and the terminal device is as follows:

[0290] Step 1, the network device sends LPWUS information in the first Y MOs of the X MOs through the first beam according to the number of the woken subgroups, and carries indication information in the overlaid sequence of the LPWUS information of the first MO in the first Y MOs. The indication information can be used to indicate the number of code point values sent through the first Y MOs.

[0291] In some embodiments, the LPWUS information sent in the first Y MOs indicates the code point values of the subgroups, and the network device can send the code point values in the first Y MOs in ascending order.

[0292] Step 2, the terminal device detects the MO of the first beam.

[0293] Step 3, the terminal device detects the first LPWUS information in the first MO of the first beam, and decodes the first LPWUS information to obtain the code point value of a subgroup and indication information. The indication information is the scrambling information of the LPWUS information, which is used to indicate the number of code point values sent through at least one MO. The scrambling information of the LPWUS information includes at least one of the following: scrambling information of the data of the LPWUS, and cyclic redundancy check (CRC) scrambling information of the LPWUS.

[0294] In some embodiments, the first LPWUS information can include a preamble, a code point value, and CRC scrambling information.

[0295] Step 4, the terminal device determines whether to detect the subsequent MO of the first beam based on the code point value of a subgroup and the number of code point values sent through at least one MO.

[0296] For specific implementation of step 4, refer to the description of the above embodiments, which will not be repeated here.

[0297] In the above embodiments, the network device can carry the number of code points sent by using the overlaid sequence of the LPWUS, so that the terminal device can determine the number of code points to be received based on the overlaid sequence of the LPWUS. Since the terminal device only detects the first Y MOs at most, and does not have to detect the X MOs one by one, the power consumption of the terminal device is reduced, and the detection time is shortened.

[0298] The above embodiment introduces a sub-group information transmission method (referred to as a first sub-group information transmission method): when the network device transmits the LPWUS information in at least one MO of X MOs, the network device can indicate at least one of the following through a first MO in the at least one MO: the first MO is the last MO in the at least one MO in the first beam, and the number of code point values transmitted through the at least one MO. In addition to this, the present application also provides another two sub-group information transmission methods (referred to as a second sub-group information transmission method and a third sub-group information transmission method).

[0299] The implementation of the other two sub-group information transmission methods is exemplarily described below.

[0300] Exemplarily, FIG. 28 is a flowchart of the second sub-group information transmission method provided by the embodiment of the present application.

[0301] As shown in FIG. 28, the method can include the following S201-S204.

[0302] S201, the network device transmits a first low power synchronization signal (LPSS or LP-SS) sequence through a first beam, and the first LPSS sequence is used to indicate the number of code point values to be transmitted through the first beam in at least one MO.

[0303] In some embodiments, the network device can configure the correspondence between the LPSS sequence or the offset value and the number of code point values. Different LPSS sequences are used to indicate different numbers of code point values.

[0304] In some embodiments, different LPSS sequences include any of the following:

[0305] (1) The LPSS sequences are different, wherein different preamble sequences refer to different sequence values of the preamble sequence, for example, the LPSS sequence 0000 is used to indicate that 1 code point value is carried, the LPSS sequence 0001 is used to indicate that 2 code point values are carried, and the LPSS sequence 0010 is used to indicate that 3 code point values are carried.

[0306] (2) The offset values of the LPSS sequences are different, for example, when the offset value of the LPSS sequence is a first numerical value, it indicates that 1 code point value is carried, when the offset value of the LPSS sequence is a second numerical value, it indicates that 2 code point values are carried, and when the offset value of the LPSS sequence is a third numerical value, it indicates that 3 code point values are carried. For example, according to a related rule, the LPSS of the cell is determined as a sequence value**, and the sequence value** is offset based on the value of Y. When Y=0, the sequence value** is not offset; when Y=1, the sequence value** is offset by 1; and when Y=2, the sequence value** is offset by 2.

[0307] S202, the terminal device receives the first LPSS sequence through the first beam, and determines the number of code point values to be sent through the first beam in the at least one MO based on the first LPSS sequence.

[0308] The terminal device can determine the number of code point values to be sent through the first beam in the at least one MO based on the LPSS sequence based on a preset rule or a network-configured rule.

[0309] S203, the network device sends LPWUS information in the at least one MO through the first beam, and the LPWUS information sent in each MO is used to indicate the code point value of one of the awakened subgroups.

[0310] S204, the terminal device detects at least one MO of the first beam to obtain the LPWUS information, and the LPWUS information detected in each MO is used to indicate the code point value of one of the awakened subgroups.

[0311] Exemplarily, FIG. 29 shows a schematic diagram of indicating the number of code point values through the LPSS sequence. As shown in FIG. 29, the LPSS sequence is a periodically sent sequence, which is used for coarse synchronization between the network side and the terminal side. Whether the network device needs to send the LPWUS information or not, the LPSS sequence is always periodically broadcasted in the cell. When the network device needs to send the LPWUS information, the network device can use the sequence value or the offset value of the LPSS-1 to indicate the number of code point values to be sent through the first beam in the at least one MO, such as the code point values to be sent in 3 MOs. In this way, when the terminal device decodes the LPSS-1, it can determine that the code point values are to be sent in 3 MOs, and respectively detect the MO1, MO2 and MO3.

[0312] In the above subgroup information transmission method, the network device can use the LPSS sequence to carry the number of sent code points, so that the terminal device can determine the number of code points to be received based on the LPSS sequence. Since the terminal device only needs to detect the first Y MOs at most, and does not need to detect the X MOs in sequence, the power consumption of the terminal device is reduced, and the detection time is shortened.

[0313] Exemplarily, FIG. 30 is a flowchart of a third subgroup information transmission method provided by an embodiment of the present application.

[0314] As shown in FIG. 30, the method can include the following S301 to S304.

[0315] S301, the network device sends first LPWUS information in a first MO through the first beam, and the first LPWUS information is used to indicate the code point value of a first subgroup in the awakened subgroups, and the first MO corresponds to a preset MO of the first subgroup.

[0316] S302, the terminal device detects the first LPWUS information at the first MO of the first beam, and determines whether to detect a subsequent MO of the first MO based on a decoding result of the first LPWUS information.

[0317] S303, the network device sends second LPWUS information at a second MO through the first beam, the second LPWUS information being used to indicate a code point value of a second sub-group in the wake-up sub-group, and the second MO being a preset MO corresponding to the second sub-group.

[0318] S304, the terminal device detects the second LPWUS information at the second MO of the first beam, and determines whether to detect a subsequent MO of the second MO based on a decoding result of the second LPWUS information.

[0319] The first sub-group and the second sub-group are different sub-groups, and the different sub-groups correspond to different preset MOs.

[0320] It should be noted that since the terminal device corresponds to only one MO, such as the first MO or the second MO, the terminal device only detects one of the first MO and the second MO, that is, only performs the above S302 or S304.

[0321] As an example, when X is 2, the first 1 / 2 sub-groups are detected in the first MO, and the last 1 / 2 sub-groups are detected in the second MO.

[0322] As another example, when X is 2, the sub-groups with odd index values are detected in the first MO, and the sub-groups with even index values are detected in the second MO.

[0323] In some embodiments, assuming that the number of sub-groups is M, the sub-groups can be divided into X groups, and the number of sub-groups allocated in each group is floor(M / X)+1 or floor(M / X). The number of sub-groups allocated in the first mod(M, X) MOs is floor(M / X)+1, and the number of sub-groups allocated in the subsequent MOs is floor(M / X). Thus, each sub-group needs to detect only one position. Wherein, floor() is a floor function.

[0324] In some embodiments, the terminal device can determine to detect the LPWUS information in the MO according to the sub-group ID mod X, and obtain the value of the code point. Wherein, mod is a modulus symbol.

[0325] In some embodiments, the correspondence between the sub-group and the MO is pre-set or determined according to network configuration.

[0326] Exemplarily, FIG. 31 shows a schematic diagram of grouping the positions of different code points according to the number of X MOs sent. As shown in FIG. 31, if the awakened subgroups are the first subgroup and the eighth subgroup, the network device can perform the following calculation: 1 mod 3 = 1, 8 mod 3 = 2, so that the network device sends the code point value 000 of the first subgroup at MO1 and the code point value 111 of the eighth subgroup at MO2. In this way, the terminal device belonging to the first subgroup can only detect MO1, and the terminal device belonging to the eighth subgroup can only detect MO2.

[0327] In the above subgroup information transmission method, by fixing the correspondence relationship with the MO in advance, the network device can only send the LPWUS information at the fixed position, and accordingly, the terminal device only needs to detect the fixed position, without having to perform blind detection on the X MOs, thereby reducing the power consumption of the terminal device.

[0328] The embodiments of the present application also provide a computer readable storage medium having instructions stored thereon, when the instructions are run on a computer, the computer executes part or all steps of any one of the methods in the above aspects.

[0329] The embodiments of the present application also provide a computer program product including instructions, when a computer runs the instructions of the computer program product, the computer executes part or all steps of any one of the methods in the above aspects.

[0330] The embodiments of the present application also provide a chip or a chip system. The chip can include a processor. The chip can also include a memory (or a storage module) and / or a transceiver (or a communication module), or the chip is coupled with the memory (or the storage module) and / or the transceiver (or the communication module). The transceiver (or the communication module) can be used to support wired and / or wireless communication of the chip, and the memory (or the storage module) can be used to store a program, and the processor invoking the program can be used to implement the operations performed by the terminal device or the network device in the above method embodiments and any possible implementation manner of the method embodiments. The chip system can include the above chip, or can include the above chip and other discrete devices, such as the memory (or the storage module) and / or the transceiver (or the communication module).

[0331] The device provided by the embodiments of the present application can be implemented by software, hardware, firmware, or any combination thereof, in whole or in part. When implemented by software, the device can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, the processes or functions according to the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center through a wired (for example, coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (for example, infrared, wireless, microwave, etc.) manner. The computer-readable storage medium can be any available medium accessible by a computer or a data storage device such as a server, data center, etc. containing one or more available media. The available media can be a magnetic medium (for example, a floppy disk, a hard disk, a magnetic tape), an optical medium (for example, a high-density digital video disc (DVD)), or a semiconductor medium (for example, an SSD), etc.

[0332] It should be understood that the term "and / or" herein merely describes an association relationship of associated objects, which means that there can be three relationships, for example, A and / or B can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " herein generally represents an "or" relationship between the associated objects before and after it.

[0333] It should be understood that in the embodiments of the present application, the size of the serial number of each process does not mean the execution order, and the execution order of each process should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0334] Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in combination with the embodiments disclosed herein can be realized by electronic hardware or a combination of computer software and electronic hardware. Whether the functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the present application.

[0335] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the system, device and unit described above can refer to the corresponding process in the foregoing method embodiments, and will not be repeated here.

[0336] In several embodiments provided in the present application, it should be understood that the disclosed system, device and method 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, and actual implementation can have another division manner, for example, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the coupling or direct coupling or communication connection between the units shown or discussed can be indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or other forms.

[0337] The units described as separate components can or can not be physically separate, and the components shown as units can or can not be physical units, that is, they can be located in one place, or can be distributed on a plurality of network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the embodiment scheme.

[0338] In addition, each functional unit in each embodiment of the present application can be integrated into a processing unit, or each unit can exist physically, or two or more units can be integrated into one unit.

[0339] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited to this, and any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A sub-group information transmission method, characterized by, The method comprises: sending low-power wake-up signal (LPWUS) information in at least one monitoring opportunity (MO) through a first beam; wherein the LPWUS information sent in each MO is used to indicate a codepoint value of one of the awakened subgroups, and the indication information of a first MO of the at least one MO is used to indicate at least one of the following: the first MO is the last MO of the at least one MO under the first beam; the number of codepoint values sent through the at least one MO.

2. The method of claim 1, wherein, The first beam corresponds to X MOs within one low-power wake-up signal opportunity (LO), and the at least one MO is the first Y MOs of the X MOs; wherein X is a positive integer, and Y is an integer greater than or equal to 0.

3. The method of claim 2, wherein, The codepoint values sent in the first Y MOs are arranged in ascending order.

4. The method of claim 2, wherein, The LPWUS information is sent in the at least one MO through the first beam, comprising: according to the number of the awakened subgroups, sending the LPWUS information in the first Y MOs of the X MOs through the first beam.

5. The method of claim 2, wherein, X is predefined or determined according to network configuration.

6. The method of any one of claims 2 to 5, wherein Y is equal to the number of the awakened subgroups, and the indication information of the first MO is specifically used to indicate the number of non-repeated codepoint values sent through the first Y MOs; or Y is greater than the number of the awakened subgroups, and the indication information of the first MO is specifically used to indicate the number of repeated codepoint values and non-repeated codepoint values sent through the first Y MOs.

7. The method according to any one of claims 1 to 6, characterized in that, The indication information is a termination end symbol placed after the LPWUS information of the first MO, and the termination end symbol is used to indicate that the first MO is the last MO of the at least one MO under the first beam.

8. The method according to any one of claims 1 to 6, characterized in that, The first MO is the first MO of the at least one MO, and the indication information is carried in the LPWUS information of the first MO, and the indication information is used to indicate the number of codepoint values sent through the at least one MO.

9. The method of claim 8, wherein, The indication information is specifically used to indicate the number of total codepoint values sent through the at least one MO; wherein the total codepoint values include non-repeated codepoint values, or the total codepoint values include repeated codepoint values and non-repeated codepoint values.

10. The method of claim 9, wherein, An information field is set in each MO of the at least one MO, and the information field of each MO is used to indicate that the codepoint value of the next MO is a repeated codepoint value, or the codepoint value of the next MO is a non-repeated codepoint value, or no codepoint value will be sent subsequently.

11. The method according to any one of claims 1 to 6, characterized in that, The first MO is the first MO of the at least one MO, and the indication information is the time domain offset of the first MO, and the time domain offset of the first MO is used to indicate the number of codepoint values sent through the at least one MO, and the time domain offset is the time deviation of the starting time of the first MO from a preset reference point.

12. The method of claim 11, wherein, Different numbers of the awakened subgroups correspond to different time domain offsets; sending the LPWUS information in the at least one MO through the first beam, comprising: determining the time domain offset according to the number of the awakened subgroups; sending the LPWUS information in the at least one MO through the first beam from the time point with the time domain offset from the preset reference point as a starting time point.

13. The method according to any one of claims 1 to 6, characterized in that, The first MO is a first MO of the at least one MO, and the indication information is a preamble sequence of the LPWUS information of the first MO or an overlapping sequence of the preamble sequence. The preamble sequence of the LPWUS information of the first MO or the overlapping sequence of the preamble sequence is used to indicate the number of code point values sent through the at least one MO. Different preamble sequences or different overlapping sequences of the preamble sequence are used to indicate different numbers of code point values.

14. The method of claim 13, wherein Different preamble sequences are used to indicate different numbers of code point values. Or, different sequence categories of preamble sequences are used to indicate different numbers of code point values. Or, different overlapping sequences of the preamble sequence are used to indicate different numbers of code point values. Or, different sequence categories of the overlapping sequences of the preamble sequence are used to indicate different numbers of code point values.

15. The method of claim 13, wherein, The preamble sequence of the LPWUS information or the overlapping sequence of the preamble sequence of each MO in the at least one MO is used to indicate the number of code point values sent through the at least one MO.

16. The method of any one of claims 1 to 6, wherein, The indication information is a preamble sequence of the LPWUS information of the first MO or an overlapping sequence of the preamble sequence. The preamble sequence of the LPWUS information of the first MO or the overlapping sequence of the preamble sequence is a first sequence. The first sequence is used to indicate that the first MO is the last MO in the at least one MO under the first beam.

17. The method of any one of claims 1 to 6, wherein, The first MO is a first MO of the at least one MO. The indication information is carried in scrambling information of the LPWUS information of the first MO. The indication information is used to indicate the number of code point values sent through the at least one MO. The scrambling information of the LPWUS information includes at least one of the following: scrambling information of data of the LPWUS and cyclic redundancy check (CRC) scrambling information of the LPWUS.

18. The method of claim 17, wherein, The indication information is carried in scrambling information of the LPWUS information of each MO in the at least one MO.

19. The method of any one of claims 1 to 6, wherein, The first MO is a first MO of the at least one MO. The indication information is an overlapping sequence of the LPWUS information of the first MO. The overlapping sequence of the LPWUS information of the first MO is used to indicate the number of code point values sent through the at least one MO. Different overlapping sequences are used to indicate different numbers of code point values.

20. The method of claim 19, wherein, The overlapping sequence of the LPWUS information of each MO in the at least one MO is used to indicate the number of code point values sent through the at least one MO.

21. A sub-group information transmission method, characterized by, The method comprises: transmit a first low-power synchronization signal (LPSS) sequence through a first beam, the first LPSS sequence being used to indicate a number of codepoint values to be transmitted in at least one MO through the first beam, different LPSS sequences being used to indicate different numbers of codepoint values; transmit LPWUS information in the at least one MO through the first beam, the LPWUS information transmitted in each MO being used to indicate a codepoint value of one of the subgroups of woken-up devices.

22. The method of claim 21, wherein, The different LPSS sequences include any of the following: different sequences of the LPSS sequences, different offset values of the LPSS sequences.

23. A sub-group information transmission method characterized by comprising: The method comprises: transmit first LPWUS information in a first MO through a first beam, the first LPWUS information being used to indicate a codepoint value of a first subgroup of the subgroups of woken-up devices, the first MO being a preset MO corresponding to the first subgroup; transmit second LPWUS information in a second MO through the first beam, the second LPWUS information being used to indicate a codepoint value of a second subgroup of the subgroups of woken-up devices, the second MO being a preset MO corresponding to the second subgroup; wherein the first subgroup and the second subgroup are different subgroups, and different subgroups correspond to different preset MOs.

24. The method of claim 23, wherein the first beam corresponds to X MOs within one LO; X is equal to 2, an index value of the first subgroup is an odd number, and an index value of the second subgroup is an even number; or X is equal to 2, an index value of the first subgroup is less than or equal to a first numerical value, and an index value of the second subgroup is greater than the first numerical value; or X is an integer greater than or equal to 2, a position of the first MO among the X MOs is determined according to a remainder of the index value of the first subgroup divided by X, and a position of the second MO among the X MOs is determined according to a remainder of the index value of the second subgroup divided by X.

25. A sub-group information transmission method characterized by comprising: The method comprises: detecting an MO of a first beam; detecting first LPWUS information in a first MO of the first beam, the first LPWUS information being used to indicate a codepoint value of one of the subgroups of woken-up devices; determining, based on indication information of the first MO, whether to detect subsequent MOs of the first beam, the indication information of the first MO including a decoding result of the first LPWUS information; wherein the indication information of the first MO is used to indicate at least one of the following: the first MO is the last MO of at least one MO in which LPWUS information is transmitted through the first beam; a number of codepoint values transmitted through the at least one MO.

26. The method of claim 25, wherein, The first beam corresponds to X MOs within one LO, and the first MO is an MO of a first Y MOs among the X MOs; wherein X is a positive integer, and Y is an integer greater than or equal to 0.

27. The method of claim 26, wherein, Codepoint values detected in the first Y MOs are arranged in ascending order.

28. The method of claim 26, wherein, X is predefined or determined according to network configuration.

29. The method of any one of claims 26 to 28, wherein Y is equal to the number of the awakened subgroups, the indication information of the first MO is specifically used for indicating the number of non-repeated code point values transmitted through the first Y MOs; or, Y is greater than the number of the awakened subgroups, the indication information of the first MO is specifically used for indicating the number of repeated code point values and non-repeated code point values transmitted through the first Y MOs.

30. The method of any one of claims 25-29, wherein, The indication information is a termination end symbol placed after the first LPWUS information; and the determining whether to detect a subsequent MO of the first beam based on the indication information of the first MO comprises: decoding the first LPWUS information; if a termination end symbol is detected after the first LPWUS information, it is determined that the subsequent MO of the first beam is not detected, and the termination end symbol is used to indicate that the first MO is the last MO of at least one MO of the first beam transmitting LPWUS information.

31. The method of any one of claims 25-29, wherein, The first MO is the first MO of at least one MO of the first beam transmitting LPWUS information; and the determining whether to detect a subsequent MO of the first beam based on the indication information of the first MO comprises: decoding the first LPWUS information to obtain the code point value of the one subgroup and the indication information, the indication information being used to indicate the number of code point values transmitted through the at least one MO; determining whether to detect a subsequent MO of the first beam based on the code point value of the one subgroup and the number of code point values transmitted through the at least one MO.

32. The method of claim 31, wherein, An information field is arranged in each of the at least one MO, and the information field of each MO is used to indicate that the code point value of the next MO is a repeated code point value, or the code point value of the next MO is a non-repeated code point value, or no code point value is transmitted subsequently; After it is determined that the subsequent MO of the first beam is detected, the method further comprises: decoding the information field of each MO; determining whether to detect a subsequent MO of the first beam based on the decoding result of the information field of the current MO, the decoding result of the LPWUS information of the current MO, and the number of code point values transmitted through the at least one MO.

33. The method of any one of claims 25-29, wherein, The first MO is the first MO of at least one MO of the first beam transmitting LPWUS information; The detecting the MO of the first beam comprises detecting the first MO based on different time domain offsets, the time domain offset being a time deviation of a starting time of the first MO from a preset reference point, and different time domain offsets being used to indicate different numbers of code point values; The detecting the first LPWUS information in the first MO of the first beam comprises detecting the first LPWUS information in the first MO at a time point of a first time domain offset from the preset reference point; and The indication information of the first MO is used to determine whether to detect a subsequent MO of the first beam, including: determining whether to detect the subsequent MO of the first beam based on the number of code point values indicated by the first time domain offset and the decoding result of the first LPWUS information.

34. The method of any one of claims 25-29, wherein, The first MO is the first MO of at least one MO of transmitting LPWUS information through the first beam; the indication information of the first MO is used to determine whether to detect a subsequent MO of the first beam, including: The first LPWUS information is decoded to obtain the code point value of the one subgroup and the indication information, and the indication information is a preamble sequence of the first LPWUS information or an overlapping sequence of the preamble sequence, and the preamble sequence of the first LPWUS information or the overlapping sequence of the preamble sequence is used to indicate the number of code point values sent through the at least one MO; The first LPWUS information is decoded to obtain the code point value of the one subgroup and the indication information, and the indication information is a preamble sequence of the first LPWUS information or an overlapping sequence of the preamble sequence, and the preamble sequence of the first LPWUS information or the overlapping sequence of the preamble sequence is used to indicate the number of code point values sent through the at least one MO; 35. The method of any one of claims 25-29, wherein, The first MO is the last MO of at least one MO of transmitting LPWUS information through the first beam; the indication information of the first MO is used to determine whether to detect a subsequent MO of the first beam, including: The first LPWUS information is decoded to obtain the code point value of the one subgroup and the indication information, and the indication information is a preamble sequence of the first LPWUS information or an overlapping sequence of the preamble sequence, and the preamble sequence of the first LPWUS information or the overlapping sequence of the preamble sequence is used to indicate the number of code point values sent through the at least one MO; The first MO is the first MO of at least one MO of transmitting LPWUS information through the first beam; the indication information of the first MO is used to determine whether to detect a subsequent MO of the first beam, including:

36. The method of any one of claims 25-29, wherein, The first LPWUS information is decoded to obtain the code point value of the one subgroup and the indication information, and the indication information is a scrambling information of the LPWUS information, and the scrambling information is used to indicate the number of code point values sent through the at least one MO, and the scrambling information of the LPWUS information includes at least one of the following: scrambling information of data of the LPWUS, and cyclic redundancy check (CRC) scrambling information of the LPWUS; The first LPWUS information is decoded to obtain the code point value of the one subgroup and the indication information, and the indication information is a preamble sequence of the first LPWUS information or an overlapping sequence of the preamble sequence, and the preamble sequence of the first LPWUS information or the overlapping sequence of the preamble sequence is used to indicate the number of code point values sent through the at least one MO; ​ 37. The method of any one of claims 25-29, wherein, The first MO is a first MO of at least one MO in which the first LPWUS information is transmitted through the first beam; and determining, based on the indication information of the first MO, whether to detect a subsequent MO of the first beam comprises: decoding the first LPWUS information to obtain the codepoint value of the one subgroup and the indication information, the indication information being an overlap sequence of the first LPWUS information, the overlap sequence of the first LPWUS information being used to indicate a number of codepoint values transmitted through the at least one MO, the scrambling information of the LPWUS information including at least one of: scrambling information of data of the LPWUS, and cyclic redundancy check (CRC) scrambling information of the LPWUS; determining, based on the codepoint value of the one subgroup and the number of codepoint values transmitted through the at least one MO, whether to detect a subsequent MO of the first beam.

38. A sub-group information transmission method, characterized by, The method comprises: receiving, through a first beam, a first LPSS sequence, the first LPSS sequence being used to indicate a number of codepoint values to be transmitted through the first beam in at least one MO, different LPSS sequences being used to indicate different numbers of codepoint values; detecting at least one MO of the first beam to obtain LPWUS information, the LPWUS information detected in each MO being used to indicate a codepoint value of one subgroup in a woken-up subgroup.

39. A sub-group information transmission method, characterized by, The method comprises: detecting a first MO of a first beam; detecting, in the first MO of the first beam, first LPWUS information, the first LPWUS information being used to indicate a codepoint value of a first subgroup in a woken-up subgroup, the first MO corresponding to a preset MO of the first subgroup; determining, based on a decoding result of the first LPWUS information, whether to detect a subsequent MO of the first MO.

40. A communications device, characterized by The communication device comprises a processor, a communication interface, and a memory coupled to the processor and the communication interface; wherein the memory stores instructions, and the processor executes the instructions to cause the communication device to perform the subgroup information transmission method according to any one of claims 1 to 24, or to cause the communication device to perform the subgroup information transmission method according to any one of claims 25 to 39.

41. A communication system, characterized by The communication system comprises a network device and a terminal device; wherein the network device is configured to perform the subgroup information transmission method according to any one of claims 1 to 24, and the terminal device is configured to perform the subgroup information transmission method according to any one of claims 25 to 39.

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