Indication information sending method and apparatus

Abstract

Provided in the present disclosure are an indication information sending method and apparatus, and a device and a storage medium. The method comprises: when determining that a network device is in a network energy saving (NES) state, sending first indication information to the network device by at least one of the following means, wherein the first indication information is used for requesting a downlink signal and / or a downlink channel: sending the first indication information to the network device on the basis of a PRACH signal; and sending the first indication information to the network device on the basis of other signals in random access. By means of the present disclosure, an indication information sending mechanism can be provided when it is determined that the network device is in an NES state, such that the network device can perform sending on the basis of the requirements of a terminal, thereby reducing resource waste caused by periodic sending of a downlink signal and / or a downlink channel, and improving the utilization efficiency of resources.

Description

Method and device for sending indication information Technical Field

[0001] The present disclosure relates to the field of communication technologies, and in particular to a method, apparatus, device, and storage medium for sending indication information. Background Art

[0002] In communication systems, users rely on the network for data transmission and communication. As data transmission volume increases, the energy consumed by data transmission also increases. Therefore, network energy conservation has become a key concern for users. For example, semi-static configuration of time domain locations can reduce energy consumption by network devices.

[0003] Summary of the Invention

[0004] The present disclosure proposes a method, apparatus, device, and storage medium for sending indication information to provide a mechanism for sending indication information when determining that a network device is in a network energy-saving (NES) state, so that the network device can send the indication information according to the needs of the terminal, thereby reducing the resource waste caused by the periodic transmission of downlink signals and / or downlink channels and improving resource utilization efficiency.

[0005] According to a first aspect of an embodiment of the present disclosure, a method for sending indication information is proposed, which is applied to a terminal. The method includes:

[0006] Determining that a network device is in a network energy saving (NES) state, and sending first indication information to the network device in at least one of the following ways, wherein the first indication information is used to request a downlink signal and / or a downlink channel:

[0007] Sending the first indication information to the network device based on a physical random access channel (PRACH) signal;

[0008] The first indication information is sent to the network device based on other signals in random access.

[0009] According to a second aspect of an embodiment of the present disclosure, a method for receiving indication information is proposed, which is applied to a network device. The method includes:

[0010] Receiving first indication information sent by a terminal in at least one of the following ways, wherein the first indication information is information sent by the terminal when determining that the network device is in a network energy saving (NES) state and is used to request a downlink signal and / or a downlink channel:

[0011] receiving the first indication information sent by the terminal based on a PRACH signal;

[0012] receiving the first indication information sent by the terminal based on other signals in random access;

[0013] Send a downlink signal and / or downlink channel corresponding to the first indication information to the terminal.

[0014] According to a third aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0015] a transceiver module, configured to determine that a network device is in a network energy saving (NES) state, and send first indication information to the network device in at least one of the following ways, wherein the first indication information is used to request a downlink signal and / or a downlink channel:

[0016] Sending the first indication information to the network device based on a PRACH signal;

[0017] The first indication information is sent to the network device based on other signals in random access.

[0018] According to a fourth aspect of an embodiment of the present disclosure, a network device is provided, comprising:

[0019] The transceiver module is configured to receive first indication information sent by a terminal in at least one of the following ways, wherein the first indication information is information sent by the terminal when determining that the network device is in a network energy saving (NES) state and is used to request a downlink signal and / or downlink channel:

[0020] receiving the first indication information sent by the terminal based on a PRACH signal;

[0021] receiving the first indication information sent by the terminal based on other signals in random access;

[0022] The transceiver module is further configured to send a downlink signal and / or a downlink channel corresponding to the first indication information to the terminal.

[0023] According to a fifth aspect of the embodiments of the present disclosure, a terminal is provided, characterized by comprising:

[0024] one or more processors;

[0025] The terminal is used to execute the method for sending indication information as described in any one of the first aspects.

[0026] According to a sixth aspect of an embodiment of the present disclosure, a network device is provided, characterized in that it includes:

[0027] one or more processors;

[0028] The network device is used to execute the indication information receiving method described in any one of the second aspects.

[0029] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a terminal and a network device, wherein the network device is configured to implement the indication information sending method described in any one of the first aspects and the network device is configured to implement the indication information receiving method described in any one of the second aspects.

[0030] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the indication information sending method as described in any one of the first aspects or the indication information receiving method as described in any one of the second aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and / or additional aspects and advantages of the present disclosure will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0032] FIG1 is a schematic diagram of the architecture of a communication system according to an embodiment of the present disclosure;

[0033] FIG2A is a schematic diagram illustrating an example of an on-demand synchronization signal block (Synchronization Signal and PBCH block, SSB) or system information block (SIB) 1SIB1 method provided in an embodiment of the present disclosure;

[0034] FIG2B is a schematic diagram illustrating an example of a time-frequency position of a transmission opportunity (RO) provided by an embodiment of the present disclosure;

[0035] FIG2C is a schematic diagram illustrating an example of SSB-RO mapping provided by an embodiment of the present disclosure;

[0036] FIG2D is a schematic diagram illustrating an example of SSB-RO mapping provided by an embodiment of the present disclosure;

[0037] FIG2E is a schematic diagram illustrating an example of an association pattern period provided by an embodiment of the present disclosure;

[0038] FIG3A is a schematic flow chart of a method for sending indication information provided in yet another embodiment of the present disclosure;

[0039] FIG3B is a schematic diagram showing a specific preamble (preamble) in a specific valid transmission opportunity (valid RO) in an embodiment of the present application requesting a network device to send an SSB and / or SIB1;

[0040] FIG3C shows a RO time-frequency position configuration of a random access configuration (RACH configuration) #2 according to an embodiment of the present disclosure;

[0041] FIG3D is an interactive diagram of a method for sending indication information provided by yet another embodiment of the present disclosure;

[0042] FIG3E is an interactive diagram of a method for sending indication information provided by yet another embodiment of the present disclosure;

[0043] FIG3F is an interactive diagram of a method for sending indication information provided by yet another embodiment of the present disclosure;

[0044] FIG3G is an interactive diagram of a method for sending indication information provided by yet another embodiment of the present disclosure;

[0045] FIG4A is a schematic flow chart of a method for sending indication information provided in yet another embodiment of the present disclosure;

[0046] FIG5A is a schematic flow chart of a method for sending indication information provided in yet another embodiment of the present disclosure;

[0047] FIG6A is a schematic flow chart of a method for sending indication information provided in yet another embodiment of the present disclosure;

[0048] FIG7A is a schematic structural diagram of a terminal provided by an embodiment of the present disclosure;

[0049] FIG7B is a schematic diagram of the structure of a network device provided by an embodiment of the present disclosure;

[0050] FIG8A is a schematic structural diagram of a communication device provided by an embodiment of the present disclosure;

[0051] FIG8B is a schematic structural diagram of a chip provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0052] The present disclosure proposes a method, apparatus, device, and storage medium for sending indication information to provide a mechanism for sending indication information when determining that a network device is in a network energy-saving (NES) state, so that the network device can send the indication information according to the needs of the terminal, thereby reducing the resource waste caused by the periodic transmission of downlink signals and / or downlink channels and improving resource utilization efficiency.

[0053] According to a first aspect of an embodiment of the present disclosure, a method for sending indication information is proposed, which is applied to a terminal. The method includes:

[0054] Determining that a network device is in a network energy saving (NES) state, and sending first indication information to the network device in at least one of the following ways, wherein the first indication information is used to request a downlink signal and / or a downlink channel:

[0055] Sending the first indication information to the network device based on a PRACH signal;

[0056] The first indication information is sent to the network device based on other signals in random access.

[0057] In the above embodiment, when it is determined that the network device is in the network energy saving NES state, a mechanism for sending indication information can be provided, so that the network device can send according to the needs of the terminal, reducing the resource waste caused by the periodic sending of downlink signals and / or downlink channels, which can reduce resource waste, save resources, improve resource utilization efficiency, and improve data transmission efficiency.

[0058] In combination with some embodiments of the first aspect, in some embodiments, the sending the first indication information to the network device based on other signals in random access includes:

[0059] A first random access request is sent to the network device, wherein the first random access request includes an information element, and the information element is used to request the downlink signal and / or the downlink channel.

[0060] In the above embodiment, when it is determined that the network device is in the network energy saving NES state, a mechanism for sending indication information can be provided, and the downlink signal and / or the downlink channel can be requested through the information element carried in the first random access request, which can improve the accuracy of the requested downlink signal and / or the downlink channel, so that the network device can send it according to the needs of the terminal, reduce the waste of resources caused by the periodic sending of the downlink signal and / or downlink channel, reduce the waste of resources, save resources, and improve the utilization efficiency of resources.

[0061] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first random access request to the network device includes:

[0062] In the 4-step random access, a message 3 MSG3 scheduled by a random access response (Random Access Response, RAR) is sent to the network device, wherein the MSG3 carries the information element.

[0063] In the above embodiment, in the above embodiment, when it is determined that the network device is in the network energy saving NES state, a mechanism for sending indication information can be provided, and in the 4-step random access, the downlink signal and / or the downlink channel can be requested through the information element in the message 3MSG3 of the random access response RAR scheduling, which can improve the accuracy of the requested downlink signal and / or the downlink channel, so that the network device can send it according to the needs of the terminal, reduce the waste of resources caused by the periodic sending of the downlink signal and / or downlink channel, reduce the waste of resources, save resources, and improve the utilization efficiency of resources.

[0064] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first random access request to the network device includes:

[0065] In a two-step random access, a message A MSGA is sent to the network device, wherein the message A MSGA carries the information element.

[0066] In the above embodiment, when it is determined that the network device is in the network energy saving NES state, a mechanism for sending indication information can be provided, and the downlink signal and / or the downlink channel can be requested through the information element in the message A MSGA in the two-step random access, which can improve the accuracy of the requested downlink signal and / or the downlink channel, so that the network device can send it according to the needs of the terminal, reduce the waste of resources caused by the periodic sending of the downlink signal and / or downlink channel, reduce the waste of resources, save resources, and improve the utilization efficiency of resources.

[0067] In conjunction with some embodiments of the first aspect, in some embodiments, the information element includes at least one of the following:

[0068] A first bit, wherein the first bit is used to indicate a request for the network device to send a synchronization signal block SSB and a system information block 1 SIB1;

[0069] a second bit, wherein the second bit is used to indicate a request for the network device to send at least one of the SSB and the SIB1;

[0070] Second indication information, wherein the second indication information is used to indicate at least one of the following:

[0071] Whether the requested SSB is a simplified SSB;

[0072] Whether system information and / or other common signals are transmitted only when there are changes, wherein the system information includes at least one of system information block 1 SIB1 and system information block n SIBn, and the other common signals are common signals other than SIB1 and SIBn, where n is a positive integer greater than 1;

[0073] third indication information, wherein the third indication information is used to instruct the network device to use a beam to send the downlink signal and / or the downlink channel;

[0074] Fourth indication information, wherein the fourth indication information is used to instruct the network device to send the downlink signal and / or the number of times the downlink channel is sent;

[0075] Fifth indication information, wherein the fifth indication information is used to indicate a minimum time interval between a time point of receiving the downlink signal and / or the downlink channel and a time point of sending the first indication information.

[0076] In combination with some embodiments of the first aspect, in some embodiments, the information element includes the third indication information, and the third indication information is used to indicate at least one of the following:

[0077] In the 4-step random access, the beam used is the first beam corresponding to message 3MSG 3;

[0078] In the two-step random access, the beam used is the second beam corresponding to the message AMSG A;

[0079] In the four-step random access, the beam used is the first beam number corresponding to the first beam and the valid beams in the n beams before and after the first beam number, where n is a positive integer greater than or equal to zero;

[0080] In the two-step random access, the beam used is the second beam number corresponding to the second beam and the valid beams in the n beams before and after the second beam number;

[0081] In 4-step random access or 2-step random access, the directions of the beams used are all beam directions of the SSB.

[0082] In combination with some embodiments of the first aspect, in some embodiments, the sending the first indication information to the network device based on other signals in random access includes:

[0083] A second random access request is sent to the network device, wherein the second random access request includes a specific preamble in a specific valid transmission opportunity valid RO, and the specific preamble is used to request the downlink signal and / or the downlink channel.

[0084] In the above embodiment, in the above embodiment, when it is determined that the network device is in the network energy saving NES state, a mechanism for sending indication information can be provided, and the downlink signal and / or the downlink channel are requested through a random access request including a specific preamble preamble in a specific valid transmission opportunity valid RO. The accuracy of the requested downlink signal and / or the downlink channel can be improved, so that the network device can send it according to the needs of the terminal, reducing the waste of resources caused by the periodic sending of the downlink signal and / or downlink channel, reducing the waste of resources, saving resources, and improving the utilization efficiency of resources.

[0085] In combination with some embodiments of the first aspect, in some embodiments, the specific valid transmission opportunity is all transmission opportunities or part of the transmission opportunities.

[0086] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0087] Selecting a first association period in every N2 association periods, and selecting one or more valid transmission opportunities valid RO in the first association period, where N2 is a positive integer greater than or equal to 1;

[0088] An association pattern period is selected for every N1 association pattern periods, a second association period is selected for every N3 association periods in the one association pattern period, and one or more valid transmission opportunities valid RO are selected in the second association period, where N1 is a positive integer greater than or equal to 1, and N3 is a positive integer greater than or equal to 1.

[0089] In the above embodiment, a mechanism for determining the effective transmission timing valid RO can be provided, which can improve the accuracy of determining the effective transmission timing valid RO, improve the accuracy of sending the downlink signal and / or the downlink channel request, improve the accuracy of the network device sending according to the needs of the terminal, reduce the waste of resources caused by the periodic sending of the downlink signal and / or downlink channel, reduce the waste of resources, save resources, and improve the utilization efficiency of resources.

[0090] In combination with some embodiments of the first aspect, in some embodiments, the specific preamble code preamble is the entire preamble code or a part of the preamble code in a transmission opportunity RO.

[0091] In combination with some embodiments of the first aspect, in some embodiments, the sending the first indication information to the network device based on other signals in random access includes:

[0092] The first indication information is sent to the network device using a valid transmission opportunity valid RO and a preamble in a second random access configuration RACH configuration#2, wherein the RACH configuration#2 is configured by the network device and is used to request configuration of the downlink signal and / or the downlink channel.

[0093] In the above embodiment, when it is determined that the network device is in the network energy saving NES state, a mechanism for sending indication information is provided, and the downlink signal and / or the downlink channel is requested through the valid transmission timing valid RO and the preamble preamble in the second random access configuration RACH configuration #2. This can improve the accuracy of the requested downlink signal and / or the downlink channel, so that the network device can send it according to the needs of the terminal, reduce the waste of resources caused by the periodic sending of the downlink signal and / or downlink channel, reduce the waste of resources, save resources, and improve the utilization efficiency of resources.

[0094] In combination with some embodiments of the first aspect, in some embodiments, the transmission timing RO in the second random access configuration RACH configuration#2 is different from the time-frequency position of the RO in the first random access configuration RACH configuration#1, and the first random access configuration RACH configuration#1 is configured by the network device and is used for random access configuration.

[0095] In conjunction with some embodiments of the first aspect, in some embodiments, the different time-frequency positions include at least one of the following:

[0096] The transmission opportunity RO in the second random access configuration RACH configuration #2 is the same as the RO in the first random access configuration RACH configuration #1 in time domain position but different in frequency domain position;

[0097] The transmission opportunity RO in the second random access configuration RACH configuration #2 is different from the RO in the first random access configuration RACH configuration #1 in time domain position but the same in frequency domain position;

[0098] The transmission opportunity RO in the second random access configuration RACH configuration #2 is different from the RO in the first random access configuration RACH configuration #1 in time domain position and frequency domain position.

[0099] In combination with some embodiments of the first aspect, in some embodiments, the transmission opportunity RO in the second random access configuration RACH configuration #2 has the same time-frequency position as the RO in the first random access configuration RACH configuration #1.

[0100] In combination with some embodiments of the first aspect, in some embodiments, the same time-frequency position includes that the preamble code used in the second random access configuration RACH configuration #2 is different from the preamble code used in the first random access configuration RACH configuration #1.

[0101] In combination with some embodiments of the first aspect, in some embodiments, the sending the first indication information to the network device based on other signals in random access includes:

[0102] The first indication information is sent to the network device using a specific preamble preamble of a specific valid transmission opportunity valid RO, wherein the specific valid transmission opportunity valid RO is the transmission opportunity RO in the remaining valid transmission opportunities valid RO in the first random access configuration RACH configuration#1, the first random access configuration RACH configuration#1 is configured by the network device and is used for random access, the remaining valid transmission opportunities are the valid transmission opportunities valid RO in the association pattern period and the preamble preamble and the synchronization signal block SSB, and part or all of the preamble preambles in the valid transmission opportunities valid RO are not used for the valid transmission opportunities valid RO for random access.

[0103] In the above embodiment, when it is determined that the network device is in the network energy saving NES state, a mechanism for sending indication information is provided, and the downlink signal and / or the downlink channel is requested through a specific preamble code preamble of a specific valid transmission opportunity valid RO, which can improve the accuracy of the requested downlink signal and / or the downlink channel, so that the network device can send it according to the needs of the terminal, reduce the waste of resources caused by the periodic sending of the downlink signal and / or downlink channel, reduce the waste of resources, save resources, and improve the utilization efficiency of resources.

[0104] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first indication information to the network device includes:

[0105] The first indication information is sent to the network device using a specific preamble code preamble of a specific valid transmission opportunity valid RO in a predefined third random access configuration RACH configuration #3.

[0106] In combination with some embodiments of the first aspect, in some embodiments, before sending the first indication information to the network device based on the PRACH signal, the method further includes:

[0107] The PRACH signal for sending the first indication information is different from at least one of the following parameters of the PRACH signal used for random access:

[0108] Preamble target receiving power;

[0109] Preamble power ramp step size.

[0110] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first indication information to the network device based on the PRACH signal includes:

[0111] The PRACH signal for sending the first indication information uses full power to send the first indication information to the network device.

[0112] In conjunction with some embodiments of the first aspect, in some embodiments, sending the first indication information to the network device includes:

[0113] The terminal is in a radio resource control (RRC)-connected CONNECTED state and sends the first indication information to the first cell Cell, wherein the first indication information is used to request the second cell Cell to send the requested downlink signal and / or the downlink channel.

[0114] In the above embodiment, in the above embodiment, when it is determined that the network device is in the network energy saving NES state, a mechanism for sending indication information when the terminal is in the RRC-CONNECTED state is provided, so that the network device can send according to the needs of the terminal, reducing the waste of resources caused by the periodic sending of downlink signals and / or downlink channels, which can reduce the waste of resources, save resources, and improve the utilization efficiency of resources.

[0115] With reference to some embodiments of the first aspect, in some embodiments, the downlink signal includes at least one of the following:

[0116] Synchronization signal block SSB;

[0117] System Information Block 1 SIB1;

[0118] System information block nSIBn, where n is a positive integer greater than 1;

[0119] Other common signals, wherein the other common signals are common signals other than the SIB1 and the SIBn.

[0120] In conjunction with some embodiments of the first aspect, in some embodiments, the downlink channel includes at least one of the following:

[0121] Physical Broadcast Channel (PBCH);

[0122] Physical Downlink Control Channel (PDCCH);

[0123] Physical Downlink Shared Channel (PDSCH).

[0124] In conjunction with some embodiments of the first aspect, in some embodiments, the method further includes:

[0125] receiving an indication signal sent by the network device, wherein the indication signal is used to indicate a sub-state used by the network device;

[0126] Receive an indication signal sent by the network device, wherein the indication signal is used to indicate whether the network device is in the network energy saving NES state and / or the specific sub-state used when the network device is in the NES state and / or the specific sub-state used when the network device is in the non-NES state.

[0127] In the above embodiment, an indication signal can be sent to the terminal, which can improve the accuracy of the terminal in determining whether the network device is in the network energy saving NES state, and improve the accuracy of sending the requested downlink signal and / or the downlink channel, so that the network device can send according to the needs of the terminal, reduce the waste of resources caused by the periodic sending of the downlink signal and / or downlink channel, reduce the waste of resources, save resources, and improve the utilization efficiency of resources.

[0128] In conjunction with some embodiments of the first aspect, in some embodiments, the specific sub-state used by the network device when in the NES state is a sub-state in a first sub-state set, and the first sub-state set includes at least one of the following sub-states:

[0129] A first sub-state, wherein the first sub-state is a state in which SSB, SIB1, SIBn, and other common signals are not transmitted, wherein n is a positive integer greater than 1;

[0130] The second sub-state is a state in which SSB is not sent, SIB1 is sent, SIBn is not sent, and other common signals are not sent;

[0131] A third sub-state, wherein the third sub-state is a state in which SSB is sent, SIB1 is not sent, SIBn is not sent, and other common signals are not sent;

[0132] A fourth sub-state, wherein the fourth sub-state is a state in which SSB is not sent, SIB1 is not sent, SIBn is sent, and other common signals are not sent;

[0133] A fifth sub-state, wherein the fifth sub-state is a state in which SSB is not sent, SIB1 is sent, SIBn is sent, and other common signals are not sent;

[0134] The sixth sub-state is a state in which SSB is sent, SIB1 is not sent, SIBn is sent, and other common signals are not sent.

[0135] The seventh sub-state is a state in which SSB, SIB1, and SIBn are not sent, and other common signals are sent;

[0136] An eighth sub-state, wherein the eighth sub-state is a state in which SSB is not sent, SIB1 is sent, SIBn is not sent, and other common signals are sent;

[0137] A ninth sub-state, wherein the ninth sub-state is a state in which SSB is sent, SIB1 is not sent, SIBn is not sent, and other common signals are sent;

[0138] The tenth sub-state is a state in which SSB and SIB1 are not sent, SIBn is sent, and other common signals are sent;

[0139] The eleventh sub-state is a state in which the SSB is not sent, SIB1 is sent, SIBn is sent, and other common signals are sent;

[0140] The twelfth sub-state is a state of sending SSB, not sending SIB1, sending SIBn, and sending other common signals.

[0141] In conjunction with some embodiments of the first aspect, in some embodiments, the specific sub-state used when the network device is in the non-NES state includes:

[0142] The thirteenth sub-state is a state of sending SSB, sending SIB1, sending SIBn (n is greater than 1), and sending other common signals.

[0143] In combination with some embodiments of the first aspect, in some embodiments, the indication signal includes a first number of bits, and the first number corresponds to the number of sub-states in the first sub-state set.

[0144] According to a second aspect of an embodiment of the present disclosure, a method for receiving indication information is proposed, which is applied to a network device. The method includes:

[0145] Receiving first indication information sent by a terminal in at least one of the following ways, wherein the first indication information is information sent by the terminal when determining that the network device is in a network energy saving (NES) state and is used to request a downlink signal and / or a downlink channel:

[0146] receiving the first indication information sent by the terminal based on a PRACH signal;

[0147] receiving the first indication information sent by the terminal based on other signals in random access;

[0148] Send a downlink signal and / or downlink channel corresponding to the first indication information to the terminal.

[0149] In the above embodiment, when it is determined that the network device is in the network energy saving NES state, a mechanism for receiving indication information can be provided, so that the network device can send according to the needs of the terminal, reducing the resource waste caused by the periodic sending of downlink signals and / or downlink channels, which can reduce resource waste, save resources, improve resource utilization efficiency, and improve data transmission efficiency.

[0150] In conjunction with some embodiments of the second aspect, in some embodiments, the receiving the first indication information sent by the terminal based on other signals in random access includes:

[0151] A first random access request sent by the terminal is received, wherein the first random access request includes an information element, and the information element is used to request the downlink signal and / or the downlink channel.

[0152] In conjunction with some embodiments of the first aspect, in some embodiments, the receiving the first indication information sent by the terminal based on other signals in random access includes:

[0153] A second random access request sent by the terminal is received, wherein the second random access request includes a specific preamble in a specific valid transmission opportunity valid RO, and the specific preamble is used to request a downlink signal and / or a downlink channel.

[0154] In conjunction with some embodiments of the second aspect, in some embodiments, the receiving the first indication information sent by the terminal based on other signals in random access includes:

[0155] Receive the first indication information sent by the terminal using a valid transmission opportunity valid RO and a preamble preamble in a second random access configuration RACH configuration#2, wherein the RACH configuration#2 is configured by the network device and requests configuration of the downlink signal and / or the downlink channel.

[0156] In conjunction with some embodiments of the second aspect, in some embodiments, the receiving the first indication information sent by the terminal based on other signals in random access includes:

[0157] Receive the first indication information sent by the terminal using a specific preamble code preamble of a specific valid transmission opportunity valid RO, wherein the specific valid transmission opportunity valid RO is a transmission opportunity RO in the remaining valid transmission opportunities valid RO in the first random access configuration RACH configuration#1, and the first random access configuration RACH configuration#1 is configured by the network device and is used for random access configuration.

[0158] In conjunction with some embodiments of the second aspect, in some embodiments, the receiving the first indication information sent by the terminal based on other signals in random access includes:

[0159] The first indication information is received, which is sent by the terminal using a specific preamble code preamble of a specific valid transmission opportunity valid RO in a predefined third random access configuration RACH configuration.

[0160] In conjunction with some embodiments of the second aspect, in some embodiments, the method further includes:

[0161] An indication signal is sent to the terminal, wherein the indication signal is used to indicate the sub-state used by the network device.

[0162] According to a third aspect of an embodiment of the present disclosure, a terminal is provided, comprising:

[0163] a transceiver module, configured to determine that a network device is in a network energy saving (NES) state, and send first indication information to the network device in at least one of the following ways, wherein the first indication information is used to request a downlink signal and / or a downlink channel:

[0164] Sending the first indication information to the network device based on a PRACH signal;

[0165] The first indication information is sent to the network device based on other signals in random access.

[0166] According to a fourth aspect of an embodiment of the present disclosure, a network device is provided, comprising:

[0167] The transceiver module is configured to receive first indication information sent by a terminal in at least one of the following ways, wherein the first indication information is information sent by the terminal when determining that the network device is in a network energy saving (NES) state and is used to request a downlink signal and / or downlink channel:

[0168] receiving the first indication information sent by the terminal based on a PRACH signal;

[0169] receiving the first indication information sent by the terminal based on other signals in random access;

[0170] The transceiver module is further configured to send a downlink signal and / or a downlink channel corresponding to the first indication information to the terminal.

[0171] According to a fifth aspect of the embodiments of the present disclosure, a terminal is provided, characterized by comprising:

[0172] one or more processors;

[0173] The terminal is used to execute the method for sending indication information as described in any one of the first aspects.

[0174] According to a sixth aspect of an embodiment of the present disclosure, a network device is provided, characterized in that it includes:

[0175] one or more processors;

[0176] The network device is used to execute the indication information receiving method described in any one of the second aspects.

[0177] According to the seventh aspect of an embodiment of the present disclosure, a communication system is proposed, comprising a terminal and a network device, wherein the network device is configured to implement the indication information sending method described in any one of the first aspects and the network device is configured to implement the indication information receiving method described in any one of the second aspects.

[0178] According to an eighth aspect of an embodiment of the present disclosure, a storage medium is proposed, which stores instructions. When the instructions are executed on a communication device, the communication device executes the indication information sending method as described in any one of the first aspects or the indication information receiving method as described in any one of the second aspects.

[0179] The embodiments of the present disclosure provide a method for sending and receiving indication information. In some embodiments, the terms "indication information sending method," "indication information receiving method," "indication information processing method," and "communication method" are interchangeable; the terms "indication information sending device," "indication information receiving device," "indication processing device," and "communication device" are interchangeable; and the terms "information processing system" and "communication system" are interchangeable.

[0180] The embodiments of the present disclosure are not exhaustive and are merely illustrative of some embodiments, and are not intended to be a specific limitation on the scope of protection of the present disclosure. In the absence of contradiction, each step in a certain embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined. For example, a solution after removing some steps in a certain embodiment can also be implemented as an independent embodiment, and the order of the steps in a certain embodiment can be arbitrarily exchanged. In addition, the optional implementation methods in a certain embodiment can be arbitrarily combined; in addition, the embodiments can be arbitrarily combined. For example, some or all steps of different embodiments can be arbitrarily combined, and a certain embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.

[0181] In each embodiment of the present disclosure, unless otherwise specified or provided for by logic, the terms and / or descriptions between the embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form a new embodiment based on their inherent logical relationships.

[0182] The terms used in the embodiments of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure.

[0183] In the embodiments of the present disclosure, unless otherwise specified, elements expressed in the singular, such as "a", "an", "the", "above", "said", "the", "the", etc., may mean "one and only one", or "one or more", "at least one", etc. For example, when using articles such as "a", "an", "the" in English in translation, the noun following the article may be understood as a singular expression or a plural expression.

[0184] In the embodiments of the present disclosure, “plurality” refers to two or more.

[0185] In some embodiments, the terms "at least one," "one or more," "a plurality of," "multiple," etc. may be used interchangeably.

[0186] In some embodiments, descriptions such as "at least one of A and B," "A and / or B," "A in one case, B in another case," or "in response to one case A, in response to another case B" may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); and in some embodiments, A and B (both A and B are executed). The above is also applicable when there are more branches such as A, B, and C.

[0187] In some embodiments, "A or B" and other descriptions may include the following technical solutions depending on the situation: in some embodiments, A (A is executed independently of B); in some embodiments, B (B is executed independently of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The above is also applicable when there are more branches such as A, B, C, etc.

[0188] The prefixes such as "first" and "second" in the embodiments of the present disclosure are only used to distinguish different description objects and do not constitute any restriction on the position, order, priority, quantity or content of the description objects. For the statement of the description object, please refer to the description in the context of the claims or embodiments, and no unnecessary restriction should be constituted due to the use of prefixes. For example, if the description object is a "field", the ordinal number before the "field" in the "first field" and the "second field" does not limit the position or order between the "fields". "First" and "second" do not limit whether the "fields" they modify are in the same message, nor do they limit the order of the "first field" and the "second field". For another example, if the description object is a "level", the ordinal number before the "level" in the "first level" and the "second level" does not limit the priority between the "levels". For another example, the number of description objects is not limited by the ordinal number and can be one or more. Taking "first device" as an example, the number of "devices" can be one or more. In addition, the objects modified by different prefixes can be the same or different. For example, if the description object is "device", then the "first device" and the "second device" can be the same device or different devices, and their types can be the same or different; for another example, if the description object is "information", then the "first information" and the "second information" can be the same information or different information, and their contents can be the same or different.

[0189] In some embodiments, “including A,” “comprising A,” “used to indicate A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.

[0190] In some embodiments, terms such as "in response to...", "in response to determining...", "in the case of...", "at the time of...", "when...", "if...", "if...", etc. can be used interchangeably.

[0191] In some embodiments, terms such as "greater than", "greater than or equal to", "not less than", "more than", "more than or equal to", "not less than", "higher than", "higher than or equal to", "not less than", and "above" can be replaced with each other, and terms such as "less than", "less than or equal to", "not greater than", "less than", "less than or equal to", "not more than", "lower than", "lower than or equal to", "not higher than", and "below" can be replaced with each other.

[0192] In some embodiments, devices and equipment can be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they can also be understood as "equipment", "device", "circuit", "network element", "node", "function", "unit", "section", "system", "network", "chip", "chip system", "entity", "subject", etc.

[0193] In some embodiments, "network" can be interpreted as devices included in the network, such as access network equipment, core network equipment, etc.

[0194] In some embodiments, "access network device (AN device)" may also be referred to as "radio access network device (RAN device)", "base station (BS)", "radio base station", "fixed station", and in some embodiments may also be understood as "node", "access point", "transmission point (TP)", "reception point (RP)", "transmission and / or reception point (TRP)" "panel", "antenna panel", "antenna array", "cell", "macro cell", "small cell", "femto cell", "pico cell", "sector", "cell group", "serving cell", "carrier", "component carrier", "bandwidth part (BWP)", etc.

[0195] In some embodiments, "terminal" or "terminal device" may be referred to as "user equipment (UE)", "user terminal" "mobile station (MS)", "mobile terminal (MT)", subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, etc.

[0196] In some embodiments, obtaining data, information, etc. may comply with the laws and regulations of the country where the data is obtained.

[0197] In some embodiments, data, information, etc. may be obtained with the user's consent.

[0198] In addition, each element, each row, or each column in the table of the embodiment of the present disclosure can be implemented as an independent embodiment, and the combination of any elements, any rows, and any columns can also be implemented as an independent embodiment.

[0199] FIG1 is a schematic diagram illustrating the architecture of a communication system according to an embodiment of the present disclosure. As shown in FIG1 , a communication system 100 includes a terminal 101 and a network device 102 .

[0200] In some embodiments, the terminal 101 includes, for example, a mobile phone, a wearable device, an Internet of Things device, a car with communication function, a smart car, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical surgery, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, and at least one of a wireless terminal device in a smart home, but is not limited thereto.

[0201] In some embodiments, the network device 102 may include, for example, at least one of an access network device and a core network device.

[0202] In some embodiments, the access network device is, for example, a node or device that accesses a terminal to a wireless network. The access network device may include an evolved NodeB (eNB), a next generation evolved NodeB (ng-eNB), a next generation NodeB (gNB), a node B (NB), a home node B (HNB), a home evolved nodeB (HeNB), a wireless backhaul device, a radio network controller (RNC), a base station controller (BSC), a base transceiver station (BTS), a base band unit (BBU), a mobile switching center, a network device in a sixth generation mobile networks (6G) communication system, an open network device (Open RAN), a cloud network device (Cloud RAN), a network device in other communication systems, and at least one of an access node in a Wi-Fi system, but is not limited thereto.

[0203] In some embodiments, the technical solution of the present disclosure can be applied to the Open RAN architecture. In this case, the interfaces between or within the access network devices involved in the embodiments of the present disclosure can be transformed into internal interfaces of the Open RAN, and the processes and information interactions between these internal interfaces can be implemented through software or programs.

[0204] In some embodiments, the access network device can be composed of a centralized unit (CU) and a distributed unit (DU), where the CU can also be called a control unit. The CU-DU structure can be used to split the protocol layer of the access network device, with the functions of some protocol layers centrally controlled by the CU, and the functions of the remaining part or all of the protocol layers distributed in the DU, which is centrally controlled by the CU, but is not limited to this.

[0205] In some embodiments, a core network device may be a device including one or more network elements, or may be multiple devices or device groups, each including all or part of the one or more network elements. The network element may be virtual or physical. The core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), and a Next Generation Core (NGC).

[0206] In some embodiments, the core network device may be a single device including a first network element, a second network element, etc., or may be a plurality of devices or a group of devices, each including all or part of the first network element, the second network element, etc. The network element may be virtual or physical. The core network may include, for example, at least one of an evolved packet core (EPC), a 5G core network (5GCN), and a next generation core (NGC).

[0207] In some embodiments, the first network element is, for example, a Policy Control Function (PCF).

[0208] In some embodiments, the first network element is used to "support a unified policy framework to manage network behavior, provide policy rules to network entities for implementation, and access subscription information of a unified data repository (UDR)", and the name is not limited thereto.

[0209] In some embodiments, the second network element is, for example, a unified data management function (UDM).

[0210] In some embodiments, the second network element is used to "be responsible for the management of user identification, subscription data, authentication data, and service network element registration management of the user", and the name is not limited to this.

[0211] In some embodiments, the third network element is, for example, an authentication service function (AUSF).

[0212] In some embodiments, the third network element is used to "receive a request from the access and mobility management function (AMF) to authenticate the terminal, request a key from the UDM, and then forward the key issued by the UDM to the AMF for authentication processing." The name is not limited to this.

[0213] In some embodiments, the third network element may be independent of the core network device.

[0214] In some embodiments, the third network element may be part of a core network device.

[0215] It can be understood that the communication system described in the embodiment of the present disclosure is for the purpose of more clearly illustrating the technical solution of the embodiment of the present disclosure, and does not constitute a limitation on the technical solution proposed in the embodiment of the present disclosure. Ordinary technicians in this field can know that with the evolution of the system architecture and the emergence of new business scenarios, the technical solution proposed in the embodiment of the present disclosure is also applicable to similar technical problems.

[0216] The following embodiments of the present disclosure may be applied to the communication system 100 shown in FIG1 , or a portion thereof, but are not limited thereto. The entities shown in FIG1 are illustrative only. The communication system may include all or part of the entities shown in FIG1 , or may include other entities outside of FIG1 . The number and form of the entities are arbitrary, and the entities may be physical or virtual. The connection relationships between the entities are illustrative only. The entities may be connected or disconnected, and the connection may be in any manner, including direct or indirect, wired or wireless.

[0217] The embodiments of the present disclosure can be applied to Long Term Evolution (LTE), LTE-Advanced (LTE-A), LTE-Beyond (LTE-B), SUPER 3G, IMT-Advanced, 4th generation mobile communication system (4G), 5th generation mobile communication system (5G), 5G new radio (NR), future radio access (FRA), new radio access technology (RAT), new radio (NR), new radio access (NX), future generation radio access (FX), Global System for Mobile Communications (GSM (registered trademark)), CDMA2000, Ultra Mobile Broadband (UMB), IEEE 802.11 (Wi-Fi (registered trademark)), IEEE 802.16 (WiMAX (registered trademark)), IEEE 802.20, Ultra-WideBand (UWB), Bluetooth (registered trademark), Public Land Mobile Network (PLMN) networks, Device-to-Device (D2D) systems, Machine-to-Machine (M2M) systems, Internet of Things (IoT) systems, Vehicle-to-Everything (V2X), systems utilizing other communication methods, and next-generation systems based on and extending these methods. Furthermore, multiple systems may be combined (for example, a combination of LTE or LTE-A with 5G).

[0218] In one embodiment of the present disclosure, the rapid development of Network Energy Saving (NES) technology has led to research on network energy conservation (NES) to reduce energy consumption in network devices. In some embodiments, the research phase fully evaluated NES technologies in the time, frequency, spatial, and power domains, and the standardization phase standardized certain technologies in the time, spatial, and power domains.

[0219] In New Radio (NR), the time domain locations of SSB / SIB1 / cell-common PDCCH / PRACH transmissions are semi-statically configured. Periodic transmission (SSB / SIB1 / cell-common PDCCH) or reception (PRACH) of common signals limits network devices from using (deeper) sleep modes to save energy. Therefore, time domain technology achieves energy savings by limiting the transmission / reception of common signals and increasing the sleep time of network devices.

[0220] On-demand SSB / SIB1 technology is one of the most important time-domain technologies. In this technology, SSB / SIB1 is no longer sent periodically, but is sent based on the needs of NES-capable terminals (NES terminals). The specific process is shown in Figure 2A.

[0221] In some embodiments, the network device stops periodically sending SSB / SIB1 (is in the NES state) and does not explicitly notify the NES terminal that the network is in the NES state.

[0222] In some embodiments, when an NES terminal has an SSB / SIB1 request, it sends an indication message requesting SSB and / or SIB1 to the network device, which can be called a wake-up signal (WUS) / request signal. After receiving the SSB and / or SIB1 request, the network device sends SSB / SIB1 after a certain delay (enters the non-NES state) and stops sending SSB / SIB1 after sending one or more SSB bursts (returning to the NES state).

[0223] In some embodiments, the NES terminal assumes that the network device will periodically send SSB / SIB1, and the NES terminal only needs to receive SSB / SIB1 at the configured time-frequency position. After the network device uses the on-demand SSB / SIB1 technology, the NES terminal needs to determine whether the network device is in the NES state, and then send indication information requesting SSB and / or SIB1 to obtain SSB / SIB1. When the network device enters the NES state, when the NES terminal determines that the network device is in the NES state, the solution of the embodiment of the present disclosure can, for example, send indication information requesting SSB and / or SIB1 to the network device based on the PRACH signal or other signals in random access, so that the network device can determine that the NES terminal requests SSB and SIB1, and enable the application of the on-demand SSB / SIB1 technology.

[0224] In some embodiments, the random access technology is applicable to traditional terminals, legacy terminals, and NES terminals. When the terminal is in an idle state, the initial access cell will measure information such as the received signal strength of the SSB beam and select the optimal SSB beam. In the direction of the optimal SSB beam, a PRACH signal is sent at RO (RACH Occasion) for random access. In addition, in other states, the terminal can also send a PRACH signal at RO for random access. Random access includes CBRA (Contention-Based Random Access) and CFRA (Contention-Free Random Access), in which there are multiple terminals in CBRA using the same preamble (preamble sequence), that is, the PRACH signals of two terminals conflict, which will cause random access to fail.

[0225] In some embodiments, the configuration of the number of preambles for random access can be configured according to the index rach-common configuration ConfigCommon->totalNumberOfRA-Preambles / 2-step random access rach-common configuration RACH-ConfigCommonTwoStepRA->totalNumberOfRA-Preambles, where the total number of RA preambles total Number Of RA-Preambles represents the number N_total of preambles used for random access. If not configured, N_total can be 64, for example.

[0226] In some embodiments, the time domain location of the RO may be determined according to the following parameters:

[0227] Determined according to the index rach-ConfigCommon->RACH-ConfigGeneric->prach-Configuration Index and table 6.3.3.2-2 in 3GPP TS 38.211, where RACH-ConfigGeneric is the general RACH configuration.

[0228] An example is as follows: When prach-ConfigurationIndex is 118, the relationship with table 6.3.3.2-2 in 3GPP TS 38.211 is:

[0229] PRACH configuration index: prach-ConfigurationIndex configured in RRC;

[0230] Preamble format: Use preamble format A3;

[0231] nf mod x=y: The RO configuration period (PRACH configuration period) is x=2 frames, and the RO is on an odd frame (y=1) in the 2 frames;

[0232] Subframe number: RO is on subframes 2, 3, 4, 7, 8, and 9 in odd-numbered frames.

[0233] Starting Symbol: The starting symbol of RO in a subframe is 0;

[0234] Number of PRACH slots within a subframe: The number of PRACH slots within a subframe is 1 (the subframe length is 1ms, and the corresponding SCS is 15KHz. In this case, the length of the PRACH slot is 1ms, and the SCS is 15KHz);

[0235] Number of time-domain PRACH occasions within a PRACH slot: In the time domain, a PRACH timeslot contains 2 ROs;

[0236] PRACH duration: One RO symbol length: 6 symbols.

[0237] In some embodiments, the frequency domain where the RO is located is determined according to the following parameters:

[0238] rach-ConfigCommon->RACH-ConfigGeneric

[0239] ->msg1-FDM ENUMERATED{one, two, four, eight},

[0240] ->msg1-FrequencyStart INTEGER(0..maxNrofPhysicalResourceBlocks-1),

[0241] Among them, msg1-FDM is the frequency division multiplexing of Msg1;

[0242] msg1-FDM: the number of ROs in a PRACH timeslot in the frequency domain;

[0243] msg1-FrequencyStart: starting RB in the frequency domain;

[0244] The bandwidth occupied by an RO is determined according to the format of the preamble.

[0245] In some embodiments, a schematic diagram of an RO time-frequency configuration may be shown in FIG2B , for example, including:

[0246] RO in subframes #2, 3, 4, 7, 8, 9;

[0247] In the time domain, a PRACH time slot contains one RO. In a subframe, the symbol range of the first RO is OS#0 to 5.

[0248] In the frequency domain, one PRACH timeslot contains two ROs.

[0249] In some embodiments, the time-frequency resource location of the RO can be determined based on the high-level signaling configuration and the protocol default table. In some embodiments, whether the RO is valid can be determined based on certain criteria, which is not limited in the embodiments of the present disclosure. There is a certain mapping relationship between SSB and valid RO, as follows:

[0250] Case 1: When multiple SSBs are associated with one valid RO, the multiple SSBs associated with valid RO#n are distinguished by preambles. Based on the time-frequency position of the valid RO and the preamble sent by the terminal, the network device can determine that the optimal beam of the terminal corresponds to SSB#m. One configuration, for example, can be: ssb-perRACH-OccasionAndCB-PreamblesPerSSB CHOICE{four 16}. This can indicate, for example, that N=4 SSBs are mapped to one valid RO, one SSB includes R=16 preambles, and the starting index of the preamble of the nth SSB in a valid RO is n*N_total / N (i.e., n*R).

[0251] In some embodiments, there are 12 valid ROs in the PRACH configuration period, which are included in subframes 2, 3, 4, 7, 8, and 9;

[0252] There are 20 SSBs in total, N=4 SSBs are mapped to 1 valid RO.

[0253] SSB#0~3 are mapped to RO#0, SSB#4~7 are mapped to RO#1, and the SSB indexes of other RO mappings can be obtained by analogy.

[0254] One SSB contains R=16 preambles, and the preamble indexes corresponding to the 4 SSBs contained in an RO are {0~15}, {16~31}, {32~47}, {48~63} respectively.

[0255] The horizontal axis time in FIG2C represents the symbol where the valid RO is located, and does not represent continuous symbols in the time domain. The length of a time slot is 1 ms.

[0256] The time domain of RO#0~1 is OS#0~5 in time slot#2.

[0257] The time domain of RO#2~3 is OS#0~5 in time slot#3.

[0258] The time domain of RO#4-5 is OS#0-5 in time slot #4.

[0259] Case 2: When an SSB is associated with one or more valid ROs, the terminal transmits the PRACH signal in the valid RO#n associated with the optimal SSB#m. The network device determines the optimal beam for the terminal based on the time-frequency position of the valid RO as corresponding to SSB#m. One configuration is: ssb-perRACH-OccasionAndCB-PreamblesPerSSB CHOICE{onehalf n64}. This means that 1 / 2 SSB is mapped to one valid RO, that is, one SSB is mapped to two valid ROs. One SSB includes 64 preambles, with preamble indexes ranging from 0 to 63.

[0260] In some embodiments, in FIG2D , there are 12 valid ROs in the PRACH configuration period, there are 16 SSBs in total, 1 SSB is mapped to 2 valid ROs, one SSB contains R=64 preambles, SSB#0 is mapped to RO#0~1, SSB#2 is mapped to RO#2~3, and the SSB indexes mapped to other ROs can be obtained by analogy.

[0261] In the above embodiment, all SSBs may not be mapped to a valid RO included in a PRACH configuration period. As shown in Figure 2E, SSB has a total of , 6 SSBs can be mapped to valid ROs contained in one PRACH configuration period. In this case, 15 SSBs need to be mapped to valid ROs in 3 PRACH configuration periods. Accordingly, some embodiments provide an association period:

[0262] Association period: The length is N times the PRACH configuration period (PRACH configuration period), where N is the minimum value that satisfies condition 1 in the set corresponding to the PRACH configuration period in Table 8.1-1.

[0263] Condition 1: During the association period, Each of the SSBs is mapped to a valid RO at least once.

[0264] Table 1

[0265] Get the number of SSBs according to the configuration in ssb-PositionsInBurst in SIB1or in ServingCellConfigCommon.

[0266] Mapping each SSB in the SSBs to a valid RO once can be called a round-robin mapping.

[0267] After M round-robin mappings in the association period, if the remaining ROs or preambles are insufficient for one round-robin mapping, no SSB will be mapped to these remaining ROs or preambles.

[0268] The valid ROs included in a PRACH configuration period can be cyclically mapped M1 times: when M1>1, M=M1>1; in other cases, M=1.

[0269] In the above embodiment, two examples of association period are as follows:

[0270] In Figure 2D , the association period includes one PRACH configuration period. After one round-robin mapping, RO#10 to 11 remain, so no SSB is mapped to RO#10 to 11.

[0271] In FIG2E , the association period includes three PRACH configuration periods. After one cyclic mapping, RO#32 to 35 remain. Therefore, no SSB is mapped to RO#32 to 35.

[0272] In addition, the mapping relationship between SSB and valid RO also defines the association pattern period:

[0273] Association pattern period: includes N2 association periods, and the duration of the pattern that enables SSB and valid RO mapping does not exceed 160ms, where N2 is greater than or equal to 1.

[0274] Within the duration of 160ms, after an integer multiple of the association period, the remaining valid ROs cannot be cyclically mapped once, then no SSB will be mapped to these remaining valid ROs, and the remaining valid ROs will not be used for PRACH transmission.

[0275] In some embodiments, among the N2 association periods, different association periods may have different durations.

[0276] In some embodiments, the durations of association period #1, 2, and 3 are 40ms, 50ms, 40ms, and 160ms respectively. The remaining 30ms is insufficient for a cyclic mapping. Then, N2=3, and the SSB will not be mapped to a valid RO within the last 30ms.

[0277] The following describes in detail an indication information sending method, apparatus, device, and storage medium provided by embodiments of the present disclosure with reference to the accompanying drawings.

[0278] FIG3A is an interactive diagram of a method for sending indication information provided by an embodiment of the present disclosure. As shown in FIG3A , the method may include the following steps:

[0279] Step S3101: The network device enters the NES state and sends an indication signal to the terminal, wherein the indication signal is used to indicate the specific sub-state used by the network device;

[0280] In one embodiment of the present disclosure, the terminal may be, for example, an NES terminal.

[0281] In one embodiment of the present disclosure, the network device may, for example, instruct the network device to send a downlink signal and / or one or more signal combinations included in a downlink channel through high-layer signaling configuration, SIB1 configuration, or dynamic signaling.

[0282] For example, the combination included in the downlink signal and / or downlink channel may include:

[0283] Combination #1: SSB and SIB1;

[0284] Combination #2: SSB;

[0285] Combination #3: SIB1;

[0286] Combination #4: SSB and all SI information;

[0287] Combination #5: all SI information;

[0288] Combination #6: SIBn (where n is a positive integer greater than 1);

[0289] Combination #7: Other public signals.

[0290] All SI information includes SIB1 and SIBn, where n is a positive integer greater than 1.

[0291] For example, in one embodiment of the present disclosure, a network device may configure an index for each of one or more signal combinations. The request signal may indicate one or more indexes of the one or more signal combinations. The network device may determine the signal that the NES terminal desires to obtain based on the one or more indexes indicated by the received request signal. This embodiment of the present disclosure does not limit the content of each of the one or more signal combinations, nor does it limit the mapping relationship between the content indicated in the request signal and the signal that the NES terminal desires to obtain.

[0292] In one embodiment of the present disclosure, an indication signal is used to indicate whether a network device is in an NES state and / or the specific sub-state used when the network device is in the NES state and / or the specific sub-state used when the network device is in a non-NES state. The name of the indication signal is not limited. For example, the indication signal can be a first signal or a state indication signal. This embodiment of the present disclosure is not limited in this regard.

[0293] In one embodiment of the present disclosure, the specific sub-state used by the network device when in the NES state is a sub-state in a first sub-state set, and the first sub-state set includes at least one of the following sub-states:

[0294] The first sub-state is a state in which SSB, SIB1, SIBn, and other common signals are not transmitted, where n is a positive integer greater than 1;

[0295] The second sub-state is a state in which the SSB is not sent, SIB1 is sent, SIBn is not sent, and other common signals are not sent;

[0296] The third sub-state is a state in which SSB is sent, SIB1 is not sent, SIBn is not sent, and other common signals are not sent;

[0297] The fourth sub-state is a state in which SSB is not sent, SIB1 is not sent, SIBn is sent, and other common signals are not sent;

[0298] The fifth sub-state is a state in which SSB is not sent, SIB1 is sent, SIBn is sent, and other common signals are not sent;

[0299] The sixth sub-state is a state in which SSB is sent, SIB1 is not sent, SIBn is sent, and other common signals are not sent;

[0300] The seventh sub-state is a state in which SSB, SIB1, and SIBn are not sent, and other common signals are sent;

[0301] The eighth sub-state is a state in which SSB is not sent, SIB1 is sent, SIBn is not sent, and other common signals are sent;

[0302] The ninth sub-state is a state in which SSB is sent, SIB1 is not sent, SIBn is not sent, and other common signals are sent;

[0303] The tenth sub-state is a state in which SSB and SIB1 are not sent, SIBn is sent, and other common signals are sent;

[0304] The eleventh sub-state is a state in which SSB is not sent, SIB1 is sent, SIBn is sent, and other common signals are sent;

[0305] The twelfth sub-state is a state in which SSB is sent, SIB1 is not sent, SIBn is sent, and other common signals are sent.

[0306] In one embodiment of the present disclosure, the number of sub-states in the first sub-state set and the types of signal transmission and non-transmission in each sub-state are not limited. For example, the first sub-state set may include one or more sub-states. The number preceding the sub-state can be used to distinguish different sub-states and does not specifically refer to a fixed sub-state. The specific sub-state used when the network device is in the NES state is one of the sub-states in the first sub-state set.

[0307] In one embodiment of the present disclosure, the network device may notify the terminal of the specific sub-state to be used when the network device is in the NES state, for example, through at least one of a protocol predefined method, a high-layer configuration method, and a dynamic indication method. This embodiment of the present disclosure is not limited to this.

[0308] For example, in one embodiment of the present disclosure, the network device may notify the terminal of the specific sub-state used when the network device is in the NES state, for example, in a protocol predefined manner.

[0309] For example, in one embodiment of the present disclosure, the network device may notify the terminal of the specific sub-state to be used when the network device is in the NES state, for example, through a high-level configuration.

[0310] For example, in one embodiment of the present disclosure, the network device may notify the terminal of the specific sub-state used when the network device is in the NES state, for example, by means of a dynamic indication.

[0311] For example, in one embodiment of the present disclosure, the specific sub-state used is the first sub-state, wherein the first sub-state is a state in which SSB is not sent, SIB1 is not sent, SIBn is not sent, and other common signals are not sent, wherein n is a positive integer greater than 1.

[0312] For example, in one embodiment of the present disclosure, the specific sub-state used is the second sub-state, wherein the second sub-state is a state of not sending SSB, sending SIB1, not sending SIBn), and not sending other common signals, wherein n is a positive integer greater than 1.

[0313] For example, in one embodiment of the present disclosure, the specific sub-state used is the third sub-state, wherein the third sub-state is a state of sending SSB, not sending SIB1, not sending SIBn, and not sending other common signals, wherein n is a positive integer greater than 1.

[0314] For example, in one embodiment of the present disclosure, the specific sub-state used is the fourth sub-state, wherein the fourth sub-state is a state of not sending SSB, not sending SIB1, sending SIBn, and not sending other common signals, wherein n is a positive integer greater than 1.

[0315] For example, in one embodiment of the present disclosure, the specific sub-state used is the fifth sub-state, wherein the fifth sub-state is a state of not sending SSB, sending SIB1, sending SIBn, and not sending other common signals, wherein n is a positive integer greater than 1.

[0316] For example, in one embodiment of the present disclosure, the specific sub-state used is the sixth sub-state, wherein the sixth sub-state is a state of sending SSB, not sending SIB1, sending SIBn, and not sending other common signals, wherein n is a positive integer greater than 1.

[0317] For example, in one embodiment of the present disclosure, the specific sub-state used is the seventh sub-state, wherein the seventh sub-state is a state in which SSB, SIB1, and SIBn are not sent, and other common signals are sent, wherein n is a positive integer greater than 1.

[0318] For example, in one embodiment of the present disclosure, the specific sub-state used is the eighth sub-state, wherein the eighth sub-state is a state of not sending SSB, sending SIB1, not sending SIBn, and sending other common signals, wherein n is a positive integer greater than 1.

[0319] For example, in one embodiment of the present disclosure, the specific sub-state used is the ninth sub-state, wherein the ninth sub-state is a state of sending SSB, not sending SIB1, not sending SIBn, and sending other common signals.

[0320] For example, in one embodiment of the present disclosure, the specific sub-state used is the tenth sub-state, wherein the tenth sub-state is a state of not sending SSB, not sending SIB1, sending SIBn, and sending other common signals, wherein n is a positive integer greater than 1.

[0321] For example, in one embodiment of the present disclosure, the specific sub-state used is the eleventh sub-state, wherein the eleventh sub-state is a state of not sending SSB, sending SIB1, sending SIBn, and sending other common signals, wherein n is a positive integer greater than 1.

[0322] For example, in one embodiment of the present disclosure, the specific sub-state used is the twelfth sub-state, wherein the twelfth sub-state is a state of sending SSB, not sending SIB1, sending SIBn, and sending other common signals, wherein n is a positive integer greater than 1.

[0323] In one embodiment of the present disclosure, the indication signal is used to indicate whether the network device is in the NES state and / or the specific sub-state used when in the NES state and / or the specific sub-state used when the network device is in the non-NES state, wherein the network device uses the thirteenth sub-state when in the non-NES state, wherein the thirteenth sub-state is the state of sending SSB, sending SIB1, sending SIBn (n is greater than 1), and sending other common signals.

[0324] Step S3102: The terminal receives an instruction signal sent by the network device;

[0325] Step S3103: According to the indication signal, the terminal determines whether the network device is in the network energy saving NES state.

[0326] In one embodiment of the present disclosure, when the terminal receives the indication signal, it can be determined whether the network device is in the NES state or the non-NES state.

[0327] For example, in one embodiment of the present disclosure, when the terminal determines that the network device is in the network energy saving NES state according to the indication signal, the terminal may further determine the sub-state used by the network device.

[0328] For example, in one embodiment of the present disclosure, the indication signal may indicate specific information included in the sub-state used by the network device when the network device is in the network energy saving NES state.

[0329] In one embodiment of the present disclosure, the indication signal includes a first number of bits, and the first number corresponds to the number of sub-states in the first sub-state set.

[0330] In one embodiment of the present disclosure, a network device may, for example, indicate the specific sub-state being used using at least one bit. The first number corresponding to the at least one bit may be determined, for example, based on the number of sub-states in the first sub-state set. For example, when the number of sub-states in the first sub-state set is three, the specific sub-state may be indicated using two bits.

[0331] Step S3104: Determining that the network device is in the network energy saving NES state, the terminal sends first indication information to the network device in at least one of the following ways, where the first indication information is used to request a downlink signal and / or downlink channel:

[0332] Sending first indication information to the network device based on the PRACH signal;

[0333] The first indication information is sent to the network device based on other signals in the random access.

[0334] In one embodiment of the present disclosure, for example, the terminal may send the first indication information to the network device based on a PRACH signal or other signals in random access.

[0335] In one embodiment of the present disclosure, for example, the terminal may send the first indication information to the network device based on the PRACH signal.

[0336] In one embodiment of the present disclosure, for example, the terminal may send the first indication information to the network device based on other signals in the random access.

[0337] For example, in one embodiment of the present disclosure, the network device may configure RACH configuration #1 for random access and RACH configuration #2 for requesting the network device to send a downlink signal and / or a downlink channel.

[0338] In one embodiment of the present disclosure, a first random access request is sent to a network device, wherein the first random access request includes an information element, and the information element is used to request a downlink signal and / or a downlink channel.

[0339] For example, in one embodiment of the present disclosure, when a terminal initiates random access, during the random access process, the terminal may carry an information element to request a network device to send a downlink signal and / or a downlink channel.

[0340] In one embodiment of the present disclosure, the first random access request may refer to a random access request including an information element, for example. The first in the first random access request may be used to distinguish it from other random access requests.

[0341] In one embodiment of the present disclosure, sending a first random access request to a network device includes:

[0342] In the 4-step random access, a random access response RAR scheduled message 3 MSG3 is sent to the network device, wherein MSG3 carries information elements.

[0343] In one embodiment of the present disclosure, sending a first random access request to a network device includes:

[0344] In the 2-step random access, a message A MSGA is sent to the network device, wherein the message A MSGA carries an information element.

[0345] In one embodiment of the present disclosure, the information element includes at least one of the following:

[0346] The first bit is used to indicate that the network device is requested to send a synchronization signal block SSB and a system information block 1 SIB1;

[0347] The second bit is used to indicate that the network device is requested to send at least one of SSB and SIB1;

[0348] The second indication information is used to indicate at least one of the following:

[0349] Whether the requested SSB is a simplified SSB;

[0350] Whether system information and / or other common signals are transmitted only when there are changes, where system information includes at least one of system information block 1 SIB1 and system information block n SIBn, and other common signals are common signals other than SIB1 and SIBn, where n is a positive integer greater than 1;

[0351] Third indication information, where the third indication information is used to instruct the network device to use a beam to send a downlink signal and / or a downlink channel;

[0352] Fourth indication information, wherein the fourth indication information is used to instruct the network device to send a downlink signal and / or a number of times a downlink channel is sent;

[0353] The fifth indication information is used to indicate a minimum time interval between a time point of receiving a downlink signal and / or a downlink channel and a time point of sending the first indication information.

[0354] In one embodiment of the present disclosure, the information element includes a first bit, wherein the first bit is used to indicate a request for the network device to send a synchronization signal block SSB and a system information block 1 SIB1.

[0355] In one embodiment of the present disclosure, the first bit may be, for example, 1 bit, which indicates that the network device is requested to send a synchronization signal block SSB and a system information block 1 SIB1.

[0356] In one embodiment of the present disclosure, the information element includes a second bit, wherein the second bit is used to indicate a request for the network device to send at least one of SSB and SIB1.

[0357] In one embodiment of the present disclosure, the second bit may be, for example, 2 bits. The 2 bits indicate a request for the network device to send at least one of the SSB and SIB1. The 2 bits indicate a request for the network device to send the SSB. The 2 bits indicate a request for the network device to send the SIB1. The 2 bits indicate a request for the network device to send both the SSB and SIB1.

[0358] In one embodiment of the present disclosure, the information element includes second indication information, where the second indication information is used to indicate at least one of the following:

[0359] Whether the requested SSB is a simplified SSB;

[0360] Whether system information and / or other common signals are transmitted only when there are changes, where the system information includes at least one of system information block 1 SIB1 and system information block n SIBn, and other common signals are common signals except SIB1 and SIBn, and n is a positive integer greater than 1.

[0361] In one embodiment of the present disclosure, the information element includes second indication information, wherein the second indication information is used to indicate whether the requested SSB is a simplified SSB. The simplified SSB may, for example, only include PSS and SSS signals.

[0362] In one embodiment of the present disclosure, the information element includes second indication information, wherein the second indication information is used to indicate whether system information and / or other common signals are transmitted only when there is a change, wherein the system information includes at least one of system information block 1 SIB1 and system information block n SIBn, and other common signals are common signals other than SIB1 and SIBn, and n is a positive integer greater than 1.

[0363] In one embodiment of the present disclosure, the information element includes second indication information, wherein the second indication information is used to indicate whether the system information is transmitted only when there is a change, wherein the system information includes system information block 1 SIB1, and n is a positive integer greater than 1.

[0364] In one embodiment of the present disclosure, the information element includes second indication information, wherein the second indication information is used to indicate whether the system information is transmitted only when there is a change, wherein the system information includes system information block n SIBn, where n is a positive integer greater than 1.

[0365] In one embodiment of the present disclosure, the information element includes second indication information, wherein the second indication information is used to indicate whether system information and / or other common signals are transmitted only when there is a change, wherein the system information includes system information block 1 SIB1 and system information block n SIBn, where n is a positive integer greater than 1.

[0366] In one embodiment of the present disclosure, the information element includes second indication information, wherein the second indication information is used to indicate whether other common signals are transmitted only when there is a change, wherein the system information includes at least one of system information block 1 SIB1 and system information block n SIBn, and other common signals are common signals other than SIB1 and SIBn, and n is a positive integer greater than 1.

[0367] In one embodiment of the present disclosure, the information element includes second indication information, wherein the second indication information is used to indicate whether system information and other common signals are transmitted only when there is a change, wherein the system information includes at least one of system information block 1 SIB1 and system information block n SIBn, and other common signals are common signals other than SIB1 and SIBn, and n is a positive integer greater than 1.

[0368] In one embodiment of the present disclosure, the information element includes third indication information, wherein the third indication information is used to indicate the beam used by the network device to send a downlink signal and / or a downlink channel.

[0369] In one embodiment of the present disclosure, the information element includes third indication information, and the third indication information is used to indicate at least one of the following:

[0370] In the 4-step random access, the beam used is the first beam corresponding to message 3MSG 3;

[0371] In 2-step random access, the beam used is the second beam corresponding to message AMSG A;

[0372] In the four-step random access, the beams used are the first beam number corresponding to the first beam and the valid beams in the n beams before and after the first beam number, where n is a positive integer greater than or equal to zero;

[0373] In the two-step random access, the beam used is the second beam number corresponding to the second beam and the valid beam in the n beams before and after the second beam number;

[0374] In 4-step random access or 2-step random access, the directions of the beams used are all beam directions of SSB.

[0375] The effective beam refers to one of the beams in all the beam directions of the SSB. There are eight beam directions in the SSB, and the beam indices are SSB#0 to 7. The first beam number can be SSB#m, and the n beams before and after the first beam are SSB#mn,…,SSB#m-1,SSB#m+1,…,SSB#m+n. Assuming the first beam number is 1, that is, SSB#1, and n is 2, the n beams before and after the first beam number are SSB#-1,SSB#0,SSB#2,SSB#3. Among them, SSB#0,SSB#2,SSB#3 are effective beams in all the beam directions of the SSB, and SSB#-1 is not in all the beam directions of the SSB and is not an effective beam. Assuming that the first beam number is 7, that is, SSB#7, and n is 2, then the n beams before and after the first beam number are SSB#5SSB#6, SSB#8, and SSB#9, respectively. Among them, SSB#5 and SSB#6 are valid beams in all beam directions of SSB, and SSB#8 and SSB#9 are not in all beam directions of SSB and are not valid beams.

[0376] In one embodiment of the present disclosure, the information element includes fourth indication information, wherein the fourth indication information is used to indicate the number of times the network device sends a downlink signal and / or a downlink channel.

[0377] In one embodiment of the present disclosure, the information element includes fifth indication information, wherein the fifth indication information is used to indicate the minimum time interval between the time point of receiving the downlink signal and / or downlink channel and the time point of sending the first indication information.

[0378] For example, in one embodiment of the present disclosure, when the network device is in the NES state, the NES terminal initiates random access on the RO time-frequency resources configured by the predefined RACH configuration, and carries information elements in the random access process to request the network device to send downlink signals and / or downlink channels, and the downlink signals and / or downlink channels include at least SSB and / or SIB1. The predefined RACH configuration may be RACH configuration#1 or RACH configuration#2. In MSG 3 in the 4-step random access and MSG A in the 2-step random access, the NES terminal may, for example, send the first indication information on the PUSCH. The NES terminal may carry information elements in the PUSCH to request the network device to send downlink signals and / or downlink channels, and MSG 3 and MSG A may, for example, serve as request signals.

[0379] Furthermore, in one embodiment of the present disclosure, the information cells carried in MSG 3 or MSG A may include one or more sub-information cells. The sub-information cells may include, for example, a first sub-information cell #1, a second sub-information cell #2, a third sub-information cell #3, a fourth sub-information cell #4, and a fifth sub-information cell #5. For example, the following scheme may be used to enable the first sub-information cell #1, the second sub-information cell #2, the third sub-information cell #3, the fourth sub-information cell #4, and the fifth sub-information cell #5. For example, the enabling of the first sub-information cell #1, the second sub-information cell #2, the third sub-information cell #3, the fourth sub-information cell #4, and the fifth sub-information cell #5 may also be predetermined through other configuration information or protocols.

[0380] For example, in one embodiment of the present disclosure, the network device is instructed to send a downlink signal and / or a signal combination included in a downlink channel through protocol reservation or high-level signaling configuration or SIB1 configuration or dynamic signaling. The first sub-signal #1 may, for example, include nbit, where nbit is used to indicate one or more signal combinations included in the downlink signal and / or the downlink channel.

[0381] In one embodiment of the present disclosure, Option 1 may be, for example, n bits, used to indicate an index included in a downlink signal and / or downlink channel, corresponding to a signal combination. The value of n may be determined, for example, based on the number m of signal combinations. For example, n may be greater than or equal to ceil(log2(m)), where ceil represents rounding up. Specific examples of Option 1 are shown in Tables 2 and 3.

[0382] Table 2

[0383] Table 3

[0384] In one embodiment of the present disclosure, the present disclosure does not limit the parsing of bit values ​​and sub-cells.

[0385] In one embodiment of the present disclosure, Option 2 may be, for example, a bitmap where n bits represent a bitmap, and if the kth bit in the n bits has a value of 1, the terminal may request the network device to send the kth combination of downlink signals and / or downlink channels; or if the kth bit in the n bits has a value of 0, the terminal may request the network device to send the kth combination of downlink signals and / or network device channels. The value of n may be determined, for example, based on the number m of signal combination types, where n is greater than or equal to m.

[0386] For example, in one embodiment of the present disclosure, when a downlink signal or downlink channel includes a signal combination, the first sub-information element #1 may include, for example, 1 bit, which is used to indicate a request for the network device to send SSB and SIB1. The signal combination may be, for example, Combination #1: SSB and SIB1.

[0387] For example, in one embodiment of the present disclosure, when a downlink signal or downlink channel includes four signal combinations, the first sub-information element #1 may include two bits, which are used to indicate a request for the network device to send one of the four signal combinations. The four signal combinations may be, for example, Combination #2: SSB; Combination #3: SIB1; Combination #6: SIBn (n is greater than 1); and Combination #7: other common signals.

[0388] For example, in one embodiment of the present disclosure, when a downlink signal or downlink channel includes four signal combinations, the first sub-information element #1 may include, for example, 4 bits, which are used to indicate that the network device is requested to send one or more of the four signal combinations. The four signal combinations may be, for example, Combination #2: SSB; Combination #3: SIB1; Combination #6: SIBn (n is greater than 1); and Combination #7: other common signals.

[0389] For example, in one embodiment of the present disclosure, when the first sub-IC#1 is not configured, the terminal may request Combination#1 or a predefined downlink signal and / or downlink channel.

[0390] For example, in one embodiment of the present disclosure, the carried second sub-information element #2 may further include whether the requested SSB is a simplified SSB, or whether system information and / or other common signals are transmitted only when there is a change, wherein the system information includes at least one of system information block 1 SIB1 and system information block n SIBn, and other common signals are common signals other than SIB1 and SIBn, where n is a positive integer greater than 1;

[0391] For example, in one embodiment of the present disclosure, the second sub-symbol #2 can be 1 bit, which is used to indicate whether the SSB is a simplified SSB, wherein when the value of 1 bit is 1, it indicates that the SSB is a simplified SSB, and when the value of 1 bit is 0, it indicates that the SSB is a regular SSB; or when the value of 1 bit is 0, it indicates that the SSB is a simplified SSB, and when the value of 1 bit is 1, it indicates that the SSB is a regular SSB.

[0392] For example, in one embodiment of the present disclosure, the second sub-information element #2 may be, for example, 1 bit, which is used to indicate whether the system information and / or other common signals are transmitted only when there is a change.

[0393] For example, in one embodiment of the present disclosure, the value of 1 bit is 1, indicating that system information and / or other public signals are transmitted only when there are changes, and the value of 1 bit is 0, indicating that system information and / or other public signals are transmitted only when the terminal requests to send them.

[0394] For example, in one embodiment of the present disclosure, the value of 1 bit is 0, indicating that system information and / or other public signals are transmitted only when there are changes, and the value of 1 bit is 1, indicating that system information and / or other public signals are transmitted only when the terminal requests to send them.

[0395] For example, in one embodiment of the present disclosure, if the second sub-information element #2 is not configured, the SSB requested by the terminal is a regular SSB, or SIB1 and / or SIBn and / or other public information will be transmitted when the terminal requests it or the terminal uses predefined criteria.

[0396] For example, in one embodiment of the present disclosure, the third sub-information element #3 may be used to request a network device to transmit a downlink signal and / or a beam used by a downlink channel. The options for the beam used may specifically indicate:

[0397] Option 1: The beam used for transmitting downlink signals and / or downlink channels is beam #m corresponding to MSG 1 or beam #m corresponding to MSG A.

[0398] Option 2: The beam used for transmitting downlink signals and / or downlink channels is beam #m corresponding to MSG 1 or MSG A, and any valid beam in the n beams before and after beam #m (n is greater than or equal to 0).

[0399] Option 3: Send downlink signals and / or downlink channels in all beam directions of SSB.

[0400] The effective beam refers to one of the beams in all the beam directions of the SSB. There are eight beam directions in the SSB, and the beam indices are SSB#0 to 7. The first beam number can be SSB#m, and the n beams before and after the first beam are SSB#mn,…,SSB#m-1,SSB#m+1,…,SSB#m+n. Assuming the first beam number is 1, that is, SSB#1, and n is 2, the n beams before and after the first beam number are SSB#-1,SSB#0,SSB#2,SSB#3. Among them, SSB#0,SSB#2,SSB#3 are effective beams in all the beam directions of the SSB, and SSB#-1 is not in all the beam directions of the SSB and is not an effective beam. Assuming that the first beam number is 7, that is, SSB#7, and n is 2, then the n beams before and after the first beam number are SSB#5SSB#6, SSB#8, and SSB#9, respectively. Among them, SSB#5 and SSB#6 are valid beams in all beam directions of SSB, and SSB#8 and SSB#9 are not in all beam directions of SSB and are not valid beams.

[0401] The embodiment of the present disclosure does not limit the number of beam schemes used, and the third sub-information element #3 may also indicate the specific scheme used, for example.

[0402] For example, in one embodiment of the present disclosure, if sub-cell #3 is not configured, Option 1 or a protocol predefined solution may be used.

[0403] For example, in one embodiment of the present disclosure, the fourth sub-element #4 can be used to indicate the number of times k that the network device is requested to send a downlink signal and / or a downlink channel, wherein the number of times k is sent can be determined based on the capabilities of the NES terminal, enabling the NES terminal to successfully detect the downlink signal and / or downlink channel with a high probability.

[0404] In one embodiment of the present disclosure, the NES terminal may, for example, report the number of transmissions k or other information that can be used to determine the number of transmissions k. This embodiment of the present disclosure is not limited to this.

[0405] In one embodiment of the present disclosure, k corresponding to different signals may be different.

[0406] In one embodiment of the present disclosure, the number of transmissions k may be used, for example, to indicate that a downlink signal and / or downlink channel is transmitted k times on each beam in the beam determined according to the fourth sub-information element #4.

[0407] In one embodiment of the present disclosure, if the fourth sub-information element #4 is not configured, the requested downlink signal and / or downlink channel is sent once or a predefined number of times.

[0408] For example, in one embodiment of the present disclosure, the fifth sub-information element #5 is used to indicate the minimum time interval between the time when the network device receiving the request sends a downlink signal and / or downlink channel and the time when the request signal is sent. This minimum time interval can be determined based on the capabilities of the NES terminal, allowing the NES terminal sufficient time to prepare for switching from sending uplink signals to receiving the requested downlink signal and / or downlink channel.

[0409] In one embodiment of the present disclosure, the NES terminal may report the minimum time interval or other information that can be used to determine the minimum time interval. This embodiment of the present disclosure is not limited to this. The minimum time interval may specifically include, for example:

[0410] Option 1: The minimum time interval may be, for example, the number of symbols between the last symbol of the request signal and the first symbol of the downlink signal and / or downlink channel sent for the first time by the network device.

[0411] Option 2: The minimum time interval may be, for example, the number of time slots between the time slot of the request signal and the time slot in which the network device first sends a downlink signal and / or a downlink channel.

[0412] In one embodiment of the present disclosure, if the fifth sub-information element #5 is not configured, Option 2 or a solution predefined by the protocol is used.

[0413] In one embodiment of the present disclosure, sending first indication information to a network device based on other signals in random access includes:

[0414] A second random access request is sent to the network device, wherein the second random access request includes a specific preamble in a specific valid transmission opportunity valid RO, and the specific preamble is used to request a downlink signal and / or a downlink channel.

[0415] For example, based on the RO time-frequency resource configuration configured by the predefined RACH configuration, a specific preamble in a specific valid transmission opportunity valid RO can be configured, and the specific preamble in the valid RO is used to request the network device to send a downlink signal and / or a downlink channel, and the downlink signal and / or downlink channel at least includes an SSB and / or SIB1. The predefined RACH configuration may be RACH configuration#1 or RACH configuration#2. According to the RO time-frequency resource configuration configured by RACH configuration#1 or RACH configuration#2, the association period included in the association pattern period can be determined. The valid RO included in the association period can be determined, and a specific preamble in a specific valid RO is selected to request the network device to send a downlink signal and / or a downlink channel.

[0416] In one embodiment of the present disclosure, the specific valid transmission opportunity is all transmission opportunities or part of the transmission opportunities.

[0417] For example, in one embodiment of the present disclosure, the specific valid transmission opportunities are all transmission opportunities.

[0418] For example, in one embodiment of the present disclosure, the specific valid transmission opportunity is a partial transmission opportunity.

[0419] In one embodiment of the present disclosure, the method further includes:

[0420] Selecting a first association period in every N2 association periods, and selecting one or more valid transmission opportunities valid RO in the first association period, where N2 is a positive integer greater than or equal to 1;

[0421] An association pattern period is selected for every N1 association pattern periods, a second association period is selected for every N3 association periods within one association pattern period, and one or more valid transmission opportunities valid RO are selected in the second association period, where N1 is a positive integer greater than or equal to 1, and N3 is a positive integer greater than or equal to 1.

[0422] For example, in one embodiment of the present disclosure, a selection scheme for a valid transmission opportunity (valid RO) may include:

[0423] Solution 1: Select one or more association periods in every N2 association periods, and select one or more valid ROs in each of the one or more association periods. The value of N2 can be configured. If the value of N2 is not configured, a default value can be used, for example, N2 can be 1. The value configured for the valid RO can, for example, indicate the index corresponding to a row in some embodiments. Optionally, for example, a new mapping rule between the value and the selection of the valid RO can be defined. This is not limited in the present embodiment.

[0424] Solution 2: Select one or more Association pattern periods for every N1 Association pattern periods, select one or more Association pattern periods for each of the one or more Association pattern periods, select one or more Association periods for every N2 Association periods, and select one or more valid ROs for each of the one or more Association periods. For example, the value of N1 can be configured. If the value of N1 is not configured, the value of N1 uses a default value, such as 1. For example, the value of N2 can be configured. If the value of N2 is not configured, the value of N2 uses a default value, such as 1. The value configured for a valid RO can, for example, indicate the index corresponding to a row in some embodiments. Optionally, for example, a new mapping rule for selecting a valid RO can be defined. This is not limited in the present disclosed embodiments.

[0425] For example, in one embodiment of the present disclosure, a selection scheme for a specific preamble in a specific valid RO may include:

[0426] In each of the specific 1 or more valid ROs,

[0427] 1): m SSBs are associated with 1 valid RO. When m>=1, m*k preambles can be configured to request the network device to send downlink signals and / or downlink channels. Each SSB has k preambles that can be used to request the network device to send downlink signals and / or downlink channels, where k is an integer greater than or equal to 1.

[0428] 2): m SSBs are associated with 1 valid RO. When m<1, k preambles can be configured to request the network device to send downlink signals and / or downlink channels, where k is an integer greater than or equal to 1;

[0429] 3) Configure the preamble start index k1 used to request the network device to send downlink signals and / or downlink channels:

[0430] When m<1, the preamble indexed from k1 to k1+k-1 is used to request the network device to send a downlink signal and / or a downlink channel;

[0431] When m>=1, the i-th (i=0, 1, ..., m-1) SSB among the m SSBs, the preamble with index k1+i*k is used to request the network device to send a downlink signal and / or a downlink channel;

[0432] 4): Optionally, configure a starting index value k0 to determine that the k0-k0+k-1 preambles among the N preambles associated with an SSB in an RO are used to request the network device to send SSB and / or SIB1;

[0433] 5): Configure the starting index of the preamble in each SSB for requesting the network device to send a downlink signal and / or downlink channel.

[0434] For example, in one embodiment of the present disclosure, the value of k may be configured. If the value of k is not configured, the value of k is a default value, and the value of k may be 1, for example.

[0435] The selection scheme of the valid transmission opportunity valid RO and the selection scheme of the specific preamble in the specific valid RO may be, for example, a request configuration.

[0436] For example, in one embodiment of the present disclosure, Figure 3B shows a schematic diagram of a specific preamble in a specific valid RO in an embodiment of the present application requesting a network device to send SSB and / or SIB1, wherein 16 valid ROs (valid RO#0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30) are selected in the selected association period, wherein each valid RO selects 1 preamble, that is, a valid RO and preamble configuration for requesting the network device to send a downlink signal and / or a downlink channel is configured.

[0437] For example, in one embodiment of the present disclosure, a specific preamble in a specific valid RO in an RO configured using RACH configuration #1 is used to request a network device to transmit a downlink signal and / or a downlink channel, where the downlink signal and / or downlink channel includes at least an SSB and / or SIB1. A specific valid RO and a specific preamble can be used, for example, for random access by a legacy terminal and for a NES terminal to request a network device to transmit a downlink signal and / or a downlink channel. When a network device receives the same preamble, it may be unable to determine whether it is used for random access by a legacy terminal or for a NES terminal to request a network device to transmit a downlink signal and / or a downlink channel. For example, the purpose of the received preamble can be determined in the following manner:

[0438] Option 1: The NES network device only allows NES terminals to access. When the NES network device receives a specific preamble on a specific valid RO, the network device determines that the signal is for the NES terminal to request the network device to send a downlink signal and / or downlink channel. The downlink signal and / or downlink channel includes at least SSB and / or SIB1.

[0439] Option 2: The NES network device allows NES terminals and legacy terminals to access, and indicates through MSG 3 of 4-step random access or MSG A of 2-step random access whether a specific preamble on a specific valid RO is used to request the network device to send downlink signals and / or downlink channels, and the downlink signals and / or downlink channels include at least SSB and / or SIB1.

[0440] For example, in one embodiment of the present disclosure, the above request configuration may also be used in sub-solution 2-1, sub-solution 2-2, sub-solution 2-3, sub-solution 2-4, and sub-solution 2-5:

[0441] Sub-solution #2-1: Protocol pre-definition / network device high-layer signaling configuration / SIB1 configuration / dynamic indication of the signal combination contained in the downlink signal and / or downlink channel, wherein, for example, multiple request configurations can be configured, one request configuration corresponds to one signal combination, and the enabling request signal can request the network device to send different combinations of multiple signal combinations. For example, only one request configuration can be configured, and the terminal requests Combination#1 (SSB and SIB1) or a predefined downlink signal and / or downlink channel.

[0442] Sub-solution #2-2: Different request configurations can also be used, for example, to distinguish whether the requested SSB is a simplified SSB (e.g., a simplified SSB only includes PSS and SSS signals) and / or whether system information or other public information is transmitted only when there is a change. The two request configurations can, for example, distinguish between case #1 and case #2. Case #1, for example, may be that the requested SSB is a simplified SSB, and case #2, for example, may be that the requested SSB is a regular SSB. The two request configurations can also, for example, distinguish between case #3 and case #4. Case #3, for example, may be that system information or other public information is transmitted only when there is a change, and case #4, for example, may be that system information or other public information is transmitted only when the terminal requests it. For example, only one request configuration can be configured, and the regular SSB, SIB1 and / or SIBn and / or other public information requested by the terminal will be transmitted upon the terminal's request, or the terminal uses predefined criteria.

[0443] Sub-solution #2-3: The configuration request may also be used to indicate the beam to be used by the network device to transmit downlink signals and / or downlink channels, including:

[0444] Option 1: The beam used to send downlink signals and / or downlink channels is beam #m corresponding to MSG 1 or MSG A.

[0445] Option 2: The beam used to transmit downlink signals and / or downlink channels is beam #m corresponding to MSG 1 or MSG A, and any valid beam in the n beams before and after beam #m (n is greater than or equal to 0).

[0446] Option 3: Send downlink signals and / or downlink channels in all beam directions of SSB;

[0447] The effective beam refers to one of the beams in all the beam directions of the SSB. There are eight beam directions in the SSB, and the beam indices are SSB#0 to 7. The first beam number can be SSB#m, and the n beams before and after the first beam are SSB#mn,…,SSB#m-1,SSB#m+1,…,SSB#m+n. Assuming the first beam number is 1, that is, SSB#1, and n is 2, the n beams before and after the first beam number are SSB#-1,SSB#0,SSB#2,SSB#3. Among them, SSB#0,SSB#2,SSB#3 are effective beams in all the beam directions of the SSB, and SSB#-1 is not in all the beam directions of the SSB and is not an effective beam. Assuming that the first beam number is 7, that is, SSB#7, and n is 2, then the n beams before and after the first beam number are SSB#5SSB#6, SSB#8, and SSB#9, respectively. Among them, SSB#5 and SSB#6 are valid beams in all beam directions of SSB, and SSB#8 and SSB#9 are not in all beam directions of SSB and are not valid beams.

[0448] For example, in one embodiment of the present disclosure, three request configurations can distinguish Option 1, Option 2 and Option 3. The embodiment of the present disclosure does not limit the number of beam schemes used, and the beam schemes used can be distinguished by different request configurations.

[0449] Illustratively, in one embodiment of the present disclosure, only one request configuration may be configured, and Option 1 or a protocol predefined solution may be used.

[0450] Sub-Scheme #2-4: Different request configurations can also be used to distinguish the number of transmissions k of the downlink signal and / or downlink channel requested by the network device, wherein the number of transmissions k can be determined based on the capabilities of the NES terminal, enabling the NES terminal to successfully detect the downlink signal and / or downlink channel with a high probability. The NES terminal can report the number of transmissions k or other information that can be used to determine the number of transmissions k. The number k corresponding to different signals can be different. The number of transmissions k is used to send the requested downlink signal and / or downlink channel k times on each beam in the beam determined according to Sub-Scheme #2-3. When only one request configuration is configured, the requested downlink signal and / or downlink channel is sent once or a predefined number of times.

[0451] Sub-Solution #2-5: Different request configurations can also be used to distinguish the minimum time interval between the requesting network device to send downlink signals and / or downlink channels and the request signal. The minimum time interval can be determined based on the NES terminal capabilities, enabling the NES terminal to have sufficient preparation time. The NES terminal can report the minimum time interval or other information that can be used to determine the minimum time interval.

[0452] Option 1: The minimum interval refers to the number of symbols between the last symbol of the request signal and the first symbol of the downlink signal and / or downlink channel sent by the network device for the first time;

[0453] Option 2: The minimum interval refers to the number of time slots between the time slot of the request signal and the time slot in which the network device first sends a downlink signal and / or downlink channel. When only one request configuration is configured, Option 2 or the protocol predefined scheme is used.

[0454] For example, in one embodiment of the present disclosure, for sub-scheme 2-1, sub-scheme 2-2, sub-scheme 2-3, sub-scheme 2-4 and sub-scheme 2-5, one or more functions in sub-scheme 2-1, sub-scheme 2-2, sub-scheme 2-3, sub-scheme 2-4 and sub-scheme 2-5 can be enabled through other configuration information, but the embodiment of the present disclosure does not limit this.

[0455] In one embodiment of the present disclosure, the specific preamble is the entire preamble or a portion of the preamble in a transmission opportunity RO.

[0456] For example, in one embodiment of the present disclosure, the specific preamble is all preambles in a transmission opportunity RO.

[0457] For example, in one embodiment of the present disclosure, the specific preamble is a partial preamble in a transmission opportunity RO.

[0458] For example, in one embodiment of the present disclosure, the network device may configure a specific preamble in a specific RO, wherein the specific preamble in the specific RO is used to request the network device to send a downlink signal and / or a downlink channel.

[0459] In one embodiment of the present disclosure, sending first indication information to a network device based on other signals in random access includes:

[0460] The first indication information is sent to the network device using the valid transmission opportunity valid RO and the preamble preamble in the second random access configuration RACH configuration#2, wherein RACH configuration#2 is configured by the network device and is used to request configuration of a downlink signal and / or downlink channel.

[0461] In one embodiment of the present disclosure, the transmission timing RO in the second random access configuration RACH configuration#2 is different from the time-frequency position of the RO in the first random access configuration RACH configuration#1, and the first random access configuration RACH configuration#1 is configured by the network device and is used for random access configuration.

[0462] In one embodiment of the present disclosure, the different time-frequency positions include at least one of the following:

[0463] The transmission opportunity RO in the second random access configuration RACH configuration #2 has the same time domain position as the RO in the first random access configuration RACH configuration #1, but a different frequency domain position;

[0464] The transmission opportunity RO in the second random access configuration RACH configuration #2 is different from the RO in the first random access configuration RACH configuration #1 in time domain position but the same in frequency domain position;

[0465] The transmission opportunity RO in the second random access configuration RACH configuration #2 is different from the RO in the first random access configuration RACH configuration #1 in time domain position and frequency domain position.

[0466] In one embodiment of the present disclosure, the transmission timing RO in the second random access configuration RACH configuration #2 has the same time-frequency position as the RO in the first random access configuration RACH configuration #1.

[0467] In one embodiment of the present disclosure, the same time-frequency position includes that the preamble used in the second random access configuration RACH configuration #2 is different from the preamble used in the first random access configuration RACH configuration #1.

[0468] For example, in one embodiment of the present disclosure, the network device is configured with RACH configuration #1 for random access. At the same time, the network device is configured with RACH configuration #2 for requesting a downlink signal and / or downlink channel of the network device. The downlink signal and / or downlink channel at least includes sending an SSB and / or SIB1. For example, the configurations may include at least the following:

[0469] Configuration 1: The time-frequency positions of the ROs in RACH configuration #2 and RACH configuration #1 are all different:

[0470] Sub-solution 3-1-1: The RO configured with RACH configuration #2 has the same time domain position as the RO configured with RACH configuration #1, but different frequency domain positions:

[0471] Option 1: RACH configuration #2 configures the RO in the frequency domain independently.

[0472] Option 2: The frequency domain position of the RO configured by RACH configuration #2 is obtained by adding offset #1 to the frequency domain position of the RO configured by RACH configuration #1. Other information of the RO configured by RACH configuration #2 can be obtained based on RACH configuration #1.

[0473] Sub-solution 3-1-2: The RO configured with RACH configuration #2 and the RO configured with RACH configuration #1 have different time domain positions but the same frequency domain positions:

[0474] Option 1: Time domain location-independent configuration of RO configured in RACH configuration #2;

[0475] Option 2: The time domain position of the RO configured by RACH configuration #2 is obtained by adding offset #2 to the time domain position of the RO configured by RACH configuration #1. Other information of the RO configured by RACH configuration #2 can be obtained based on RACH configuration #1.

[0476] Sub-solution 3-1-3: The RO configured with RACH configuration #2 has different time domain positions and frequency domain positions from the RO configured with RACH configuration #1:

[0477] Option 1: The time domain position and frequency domain position of the RO configured in RACH configuration #2 are configured independently;

[0478] Option 2: The frequency domain position of the RO configured with RACH configuration #2 is obtained by adding offset #1 to the frequency domain position of the RO configured with RACH configuration #1. The time domain position is obtained by adding offset #2 to the time domain position of the RO configured with RACH configuration #1. Other information of the RO configured with RACH configuration #2 can be obtained based on RACH configuration #1.

[0479] In one embodiment of the present disclosure, the time-frequency positions of the RO in RACH configuration #2 for requesting a downlink signal and / or a downlink channel and the RO in RACH configuration #1 for random access are exactly the same;

[0480] Sub-solution 3-1-4: The preamble used in RACH configuration #2 is different from that in RACH configuration #1:

[0481] RACH configuration #2 configures the starting index and number of preambles used in the RO for requesting the network device to send downlink signals and / or downlink channels;

[0482] Optionally, the starting index of the preamble used in the RO configured by RACH configuration #2 is adjacent to the maximum index of the preamble used in the RO configured by RACH configuration #1.

[0483] Among them, in one embodiment of the present disclosure, in sub-scheme 3-1-1, sub-scheme 3-1-2, and sub-scheme 3-1-3, the RO of random access is different from the RO of requesting the network device to send a downlink signal and / or a downlink channel, and there is no restriction on whether the preamble of random access is the same as the preamble of requesting the network device to send a downlink signal and / or a downlink channel.

[0484] Among them, in one embodiment of the present disclosure, in sub-scheme 3-1-4, the RO of random access may be the same as the RO of requesting the network device to send a downlink signal and / or a downlink channel, and the preamble of random access is different from the preamble of requesting the network device to send a downlink signal and / or a downlink channel.

[0485] For example, in one embodiment of the present disclosure, the mapping relationship between the SSB and the valid RO in RACH configuration #1 and RACH configuration #2 may be mapping relationship #1 and mapping relationship #2, respectively:

[0486] When mapping relationship #1 and mapping relationship #2 are different, mapping relationship #2 of RACH configuration #2 is configured independently;

[0487] When mapping relationship #1 and mapping relationship #2 are the same, mapping relationship #2 may not be configured in RACH configuration #2.

[0488] The above is a configuration example of RO time-frequency position configuration #2 and mapping relationship #2 between SSB and valid RO, and the embodiments of this open competition do not limit this.

[0489] Determine the mapping between SSB and valid RO in RACH configuration #2 according to the RO time-frequency position configuration and mapping relationship #2 between SSB and valid RO in RACH configuration #2.

[0490] For example, in one embodiment of the present disclosure, FIG3C shows an RO time-frequency position configuration of RACH configuration #2 according to an embodiment of the present disclosure. The RO of RACH configuration #2 has the same time domain position as that of RACH configuration #1, and is frequency-division multiplexed in the frequency domain.

[0491] For example, in one embodiment of the present disclosure, determining the valid RO and preamble actually used to request the network device to transmit downlink signals and / or downlink channels in the configured RO in RACH configuration #2 determines the request configuration. The request configuration can also implement the functions of sub-solutions #2-1, #2-2, #2-3, #2-4, and #2-5 in Example 2.

[0492] In this solution, one or more functions in sub-solution #2-1, sub-solution #2-2, sub-solution #2-3, sub-solution #2-4, and sub-solution #2-5 in the above embodiments can be enabled through other configuration information, and this solution does not limit this.

[0493] In one embodiment of the present disclosure, sending first indication information to a network device based on other signals in random access includes:

[0494] A first indication message is sent to the network device using a specific preamble preamble of a specific valid transmission opportunity valid RO, wherein the specific valid transmission opportunity valid RO is the transmission opportunity RO in the remaining valid transmission opportunities (residual valid RO) in the first random access configuration RACH configuration#1, the first random access configuration RACH configuration#1 is configured by the network device and is used for random access, the remaining valid transmission opportunities are the valid transmission opportunities valid RO in the association pattern period and the valid transmission opportunities valid RO in which part or all of the preamble preambles are not used for the valid transmission opportunities valid RO for random access after the preamble preamble is mapped to the synchronization signal block SSB.

[0495] For example, in one embodiment of the present disclosure, a network device configures RACH configuration #1 for random access, and maps the RO time-frequency position and SSB to valid ROs according to RACH configuration #1. A valid RO is determined based on the RO configured in RACH configuration #1, and the valid RO and preamble for random access in the Association pattern period can be further determined. During the Association pattern period, some or all of the preambles in one or more valid ROs may not be mapped to SSBs and are not used for random access, such as the valid RO not mapped to SSBs in FIG2E .

[0496] For example, in one embodiment of the present disclosure, after the mapping of SSB to valid RO and preamble is completed in the Association pattern period, the valid RO in which some or all preambles are not used for random access can be called residual valid RO, and the preamble in the residual valid RO that is not used for random access can be called residual preamble. The mapping of SSB to residual valid RO can be used as follows:

[0497] Option 1: Use the mapping relationship between SSB and valid RO #1 to map SSB to residual valid RO.

[0498] Option 2: You can additionally configure the mapping relationship #2 between SSB and valid RO to map SSB to residual valid RO.

[0499] Optionally, in one embodiment of the present disclosure, only residual valid ROs whose preambles are all residual preambles are selected for mapping with SSB, wherein the mapping relationship in Option 1 or Option 2 can be used for mapping. In Option 1 and Option 2, the residual preamble in the residual valid RO can participate in the SSB.

[0500] For example, in one embodiment of the present disclosure, the mapping of the SSB to the residual valid RO and the residual preamble is used as an example. This embodiment of the present disclosure does not limit the implementation method of the mapping of the SSB to the residual valid RO and the residual preamble. Optionally, Association period #2 is determined, and in Association period #2, each of all SSBs can be mapped to the residual valid RO and the residual preamble at least once.

[0501] Optionally, in one embodiment of the present disclosure, Association pattern period #2 is determined, and Association pattern period #2 includes N2 Association period #2s, enabling the duration of the pattern for mapping SSB to valid RO to no more than Z ms, where N2 is greater than or equal to 1. Wherein, Z is a protocol default value or a value configured by a higher layer, and Z may be, for example, 160.

[0502] Optionally, in one embodiment of the present disclosure, the method in the above embodiment can be used to determine the valid RO and preamble in the RO configured in Association pattern period #2 that are actually used to request the network device to send downlink signals and / or downlink channels, that is, to determine the request configuration. The request configuration can also implement the functions of sub-scheme #2-1, sub-scheme #2-2, sub-scheme #2-3, sub-scheme #2-4, and sub-scheme #2-5 in Example 2. In the embodiment of the present disclosure, for example, other configuration information can also be used to enable one or more functions of sub-scheme #2-1, sub-scheme #2-2, sub-scheme #2-3, sub-scheme #2-4, and sub-scheme #2-5 in Example 2, which is not limited in the embodiment of the present disclosure.

[0503] In one embodiment of the present disclosure, sending first indication information to a network device includes:

[0504] The first indication information is sent to the network device using a specific preamble code preamble of a specific valid transmission opportunity valid RO in a predefined third random access configuration RACH configuration #3.

[0505] For example, in one embodiment of the present disclosure, the third random access configuration RACH configuration #3 may be, for example, the first random access configuration RACH configuration #1 or the second random access configuration RACH configuration #2.

[0506] In one embodiment of the present disclosure, before sending the first indication information to the network device based on the PRACH signal, the method further includes:

[0507] The PRACH signal for sending the first indication information is different from the PRACH signal used for random access in at least one of the following parameters:

[0508] Preamble target receiving power;

[0509] Preamble power ramp step size.

[0510] In one embodiment of the present disclosure, before sending the first indication information to the network device based on the PRACH signal, the method further includes:

[0511] The target received power of the preamble of the PRACH signal sending the first indication information is different from that of the preamble of the PRACH signal used for random access.

[0512] For example, in one embodiment of the present disclosure, based on requesting a network device to send a downlink signal and / or a downlink channel, when using a PRACH signal as a request signal, in the above-mentioned multiple embodiments, method a or b can be used to enable the power of the PRACH signal to be sufficiently large, thereby increasing the probability of successful reception of the PRACH signal as a request signal.

[0513] Method a: Compared with the PRACH signal that is not a request signal, at least one of the following parameters can be configured differently to ensure that the transmit power of the PRACH signal that is a request signal is sufficiently large:

[0514] preambleReceivedTargetPower, preamble target received power;

[0515] powerRampingStep, preamble power ramping step length.

[0516] Method b: You can enable the PRACH signal as a request through configuration or protocol default, and use full power to send.

[0517] In one embodiment of the present disclosure, the power difference between MSG 3 or MSG A and the PRACH signal is deltaPreamble#1 or deltaPreamble#2. When using MSG 3 or MSG A as a request signal, in the above-mentioned embodiments, method a or b can be enabled to enable the PRACH signal power to be sufficiently large, thereby enabling MSG 3 or MSG A to have a sufficiently large transmit power when used as a request signal. Method c or d can also be used to enable MSG 3 or MSG A to have a sufficiently large transmit power when used as a request signal:

[0518] Method c: Compared with MSG 3 or MSG A that is not used as a request signal, deltaPreamble#1 or deltaPreamble#2 is configured differently, and the power is large enough when MSG 3 or MSG A is enabled as a request signal.

[0519] Method d: MSG 3 or MSG A, which is used as the request signal, can be sent at full power by configuration or protocol default.

[0520] In one embodiment of the present disclosure, when the request signal is MSG 3 or MSG A, method a combined with method c, or method b combined with method c, may be used to enable the transmission power of MSG 3 or MSG A, which serves as the request signal, to be sufficiently large. This is not limited to the embodiments of the present disclosure.

[0521] In one embodiment of the present disclosure, before sending the first indication information to the network device based on the PRACH signal, the method further includes:

[0522] The PRACH signal sending the first indication information and the preamble power ramping step length of the PRACH signal used for random access are different.

[0523] In one embodiment of the present disclosure, sending the first indication information to the network device based on the PRACH signal includes:

[0524] The PRACH signal for sending the first indication information uses full power to send the first indication information to the network device.

[0525] In one embodiment of the present disclosure, sending first indication information to a network device includes:

[0526] The terminal is in an RRC-CONNECTED state and sends first indication information to the first cell Cell, where the first indication information is used to request the second cell Cell to send a requested downlink signal and / or downlink channel.

[0527] In one embodiment of the present disclosure, the downlink signal includes at least one of the following:

[0528] Synchronization signal block SSB;

[0529] System Information Block 1 SIB1;

[0530] System information block nSIBn, where n is a positive integer greater than 1;

[0531] Other common signals, where other common signals are common signals except SIB1 and SIBn.

[0532] In one embodiment of the present disclosure, the downlink channel includes at least one of the following:

[0533] Physical Broadcast Channel PBCH;

[0534] Physical downlink control channel PDCCH;

[0535] Physical Downlink Shared Channel PDSCH.

[0536] Optionally, in one embodiment of the present disclosure, when the NES terminal is in the RRC-CONNECTED state, the NES terminal may send a request signal to the first cell, the request signal requesting the second cell to send the requested downlink signal and / or downlink channel. Specifically, the following situations may be involved:

[0537] Case 1: When the NES terminal is in the RRC-CONNECTED state, the NES terminal can access the anchor cell. The NES terminal sends a request signal to the anchor cell, requesting the non-anchor cell to send downlink signals and / or downlink channel information.

[0538] Case 2: When the NES terminal is in the RRC-CONNECTED state, the NES terminal can be in the CA state. The NES terminal sends a request signal to the primary cell (PCell), the primary secondary cell (PsCell), or the secondary primary cell (sPcell), requesting the SCell to send downlink signals and / or downlink channel information. Optionally, the PCell, PsCell, or sPcell is not quasi-co-located with the SCell.

[0539] The embodiment of the present disclosure does not limit whether the cell receiving the request signal and the cell sending the downlink signal and / or downlink channel request to the NES terminal after receiving the request signal are the same.

[0540] Optionally, in an embodiment of the present disclosure, the embodiment of the present disclosure may be applied to NES terminals in any state, such as a CONNECTED terminal, an IDLE terminal, or an INACTIVE terminal.

[0541] When the request-related configuration is determined through RRC signaling (such as the time-frequency location of the request signal and the available preamble), the terminal retains the relevant configuration when entering the IDLE state or INACTIVE state, and the terminal can still send the request signal according to the configuration. Correspondingly, the network device can detect the receipt of the request signal at the corresponding resource location according to the configuration and perform the corresponding action.

[0542] Step S3105: The network device receives first indication information sent by the terminal in at least one of the following ways, wherein the first indication information is information sent by the terminal when the terminal determines that the network device is in the network energy saving (NES) state and is used to request a downlink signal and / or downlink channel:

[0543] receiving first indication information sent by a terminal based on a PRACH signal;

[0544] The receiving terminal sends first indication information based on other signals in random access.

[0545] Optionally, in one embodiment of the present disclosure, receiving first indication information sent by the terminal based on other signals in random access includes:

[0546] A first random access request sent by a terminal is received, where the first random access request includes an information element, and the information element is used to request a downlink signal and / or a downlink channel.

[0547] Optionally, in one embodiment of the present disclosure, receiving first indication information sent by the terminal based on other signals in random access includes:

[0548] The receiving terminal sends a second random access request, where the second random access request includes a specific preamble in a specific valid transmission opportunity valid RO, and the specific preamble is used to request a downlink signal and / or a downlink channel.

[0549] Optionally, in one embodiment of the present disclosure, receiving first indication information sent by the terminal based on other signals in random access includes:

[0550] The receiving terminal uses the first indication information sent by the valid transmission opportunity valid RO and the preamble preamble in the second random access configuration RACH configuration#2, wherein RACH configuration#2 is configured by the network device and is used to request configuration of a downlink signal and / or a downlink channel.

[0551] Optionally, in one embodiment of the present disclosure, receiving first indication information sent by the terminal based on other signals in random access includes:

[0552] The receiving terminal uses the first indication information sent by the specific preamble code preamble of the specific valid transmission opportunity valid RO, wherein the specific valid transmission opportunity valid RO is the transmission opportunity RO in the remaining valid transmission opportunities valid RO in the first random access configuration RACH configuration#1, and the first random access configuration RACH configuration#1 is configured by the network device and is used for random access configuration.

[0553] Optionally, in one embodiment of the present disclosure, receiving first indication information sent by the terminal based on other signals in random access includes:

[0554] The receiving terminal uses the first indication information sent by a specific preamble code preamble of a specific valid transmission opportunity valid RO in a predefined third random access configuration RACH configuration.

[0555] Step S3106: The network device sends a downlink signal and / or downlink channel corresponding to the first indication information to the terminal.

[0556] For example, in one embodiment of the present disclosure, the terminal may send an uplink signal, wherein the uplink signal or some information elements in the uplink signal are used to request the network device to send a downlink signal and / or a downlink channel. The uplink signal may be a request signal.

[0557] In one embodiment of the present disclosure, after receiving MSG 3 / MSG A as a request signal, the network device transmits, after a certain delay, the downlink signal and / or downlink channel desired by the NES terminal in a specified beam direction, k times according to the information element indicated in the request signal. The downlink signal and / or downlink channel may be determined based on the first sub-information element #1 and / or the second sub-information element #2, or according to a protocol predefined scheme. The specified beam may be determined based on the third sub-information element #3 or a protocol predefined scheme, the number k may be determined based on the fourth sub-information element #4 or a protocol predefined scheme, and the delay may be determined based on the fifth sub-information element #5 or a protocol predefined scheme.

[0558] In one embodiment of the present disclosure, after receiving MSG 3 or MSG A as a request signal, the network device may stop the random access process, including:

[0559] The NES terminal does not expect to receive MSG 4 or MSG B;

[0560] The network device may send a confirmation reply to the request signal of the NES terminal through other information.

[0561] In one embodiment of the present disclosure, after receiving the request signal MSG 3 or MSG A, the network device may continue the random access process. In the subsequent random access process, the network device may send an acknowledgment reply to the request signal of the NES terminal.

[0562] In one embodiment of the present disclosure, for example, a new information element may be added to MSG 4 in a 4-step random access or MSG B in a 2-step random access to notify the NES terminal that a downlink signal and / or a downlink channel request has been received. Figures 3D and 3E may be, for example, schematic diagrams of an interaction of indication information transmission. The request signal corresponding to Figure 3B may be, for example, MSG 3 serving as a request signal in a contention-based 4-step random access. Figure 3B may be, for example, a schematic diagram of an interaction of indication information transmission. The request signals corresponding to Figures 3F and 3G may be, for example, MSG A received as a request signal in a contention-based 2-step random access.

[0563] In one embodiment of the present disclosure, the network device may send a confirmation reply to the request signal of the NES terminal through other information.

[0564] Optionally, in one embodiment of the present disclosure, after the network device receives MSG 3 or MSG A as a request signal from m NES terminals, it can send k1 times the downlink signals and / or downlink channels that the m NES terminals expect to obtain in the specified beam direction after a certain delay, where m is greater than or equal to 1.

[0565] Optionally, in one embodiment of the present disclosure, the downlink signal and / or downlink channel may be determined according to the first sub-information element #1 and / or the second sub-information element #2 of each of the m NES terminals or according to a scheme predefined by the protocol.

[0566] Optionally, in one embodiment of the present disclosure, the downlink signal and / or downlink channel is a union of downlink signals and / or downlink channels requested by m NES terminals.

[0567] Optionally, in one embodiment of the present disclosure, the designated beam may be determined according to the third sub-information element #3 of each of the m NES terminals or a scheme predefined by the protocol, wherein the designated beam is the union of the beams designated by the m NES terminals.

[0568] Optionally, in one embodiment of the present disclosure, the number k may be determined based on the fourth sub-information element #4 of each of the m NES terminals or a protocol predefined scheme, wherein the number k is the maximum number k requested by the m NES terminals.

[0569] Optionally, in one embodiment of the present disclosure, the time delay may be determined based on the fifth sub-information element #5 of each of the m NES terminals or a protocol predefined scheme. The time delay may be determined based on the latest time at which downlink signals and / or downlink channels are transmitted by the m NES terminals.

[0570] For example, in one embodiment of the present disclosure, after receiving a preamble serving as a request signal, a network device may, based on the request configuration corresponding to the request signal, transmit k times in a specified beam direction, after a certain delay, a downlink signal and / or downlink channel that the NES terminal desires to acquire. The downlink signal and / or downlink channel may be determined according to Sub-Scheme #2-1 and / or Sub-Scheme #2-2, or according to a protocol predefined scheme. The specified beam may be determined according to Sub-Scheme #2-3 or a protocol predefined scheme. The number k may be determined according to Sub-Scheme #2-4 or a protocol predefined scheme. The delay may be determined according to Sub-Scheme #2-5 or a protocol predefined scheme.

[0571] Optionally, in one embodiment of the present disclosure, the network device may stop the random access process after receiving the preamble as a request signal, wherein the NES terminal does not expect to receive MSG 2 or MSG B, and wherein the network device may send an acknowledgment reply to the request signal of the NES terminal through other information.

[0572] Optionally, in one embodiment of the present disclosure, after receiving the preamble as the request signal, the network device may continue the random access process. Optionally, in the subsequent random access process, the network device may send an acknowledgment reply to the request signal of the NES terminal.

[0573] Optionally, in one embodiment of the present disclosure, a new information element in MSG 2 in a 4-step random access or MSG B in a 2-step random access notifies the NES terminal that it has received a downlink signal and / or a downlink channel request. Optionally, the network device may send an acknowledgment reply to the NES terminal's request signal using other information.

[0574] Optionally, in one embodiment of the present disclosure, after the network device receives the preamble as a request signal from m NES terminals, it sends the downlink signal and / or downlink channel that the m NES terminals expect to obtain k1 times in the specified beam direction after a certain delay, where m is greater than or equal to 1.

[0575] Optionally, in one embodiment of the present disclosure, the downlink signal and / or downlink channel may be determined according to sub-scheme #2-1 and / or sub-scheme #2-2 of each of the m NES terminals or according to a scheme predefined in a protocol.

[0576] Optionally, in one embodiment of the present disclosure, the downlink signal and / or downlink channel is a union of downlink signals and / or downlink channels requested by m NES terminals.

[0577] Optionally, in one embodiment of the present disclosure, the designated beam may be determined according to sub-scheme #2-3 of each of the m NES terminals or a scheme predefined by a protocol.

[0578] Optionally, in one embodiment of the present disclosure, the designated beam is a union of beams designated by m NES terminals.

[0579] Optionally, in an embodiment of the present disclosure, the number k may be determined according to sub-schemes #2-4 of each of the m NES terminals or a scheme predefined in the protocol.

[0580] Optionally, in an embodiment of the present disclosure, the number k is a maximum number k of requests from m NES terminals.

[0581] Optionally, in one embodiment of the present disclosure, the delay can be determined according to sub-schemes #2-5 of each of the m NES terminals or a scheme predefined by the protocol. Optionally, the delay can be determined according to the latest time when the downlink signal and / or downlink channel is sent among the m NES terminals.

[0582] In some embodiments, steps S3101 to S3106 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0583] The communication method involved in the embodiments of the present disclosure may include at least one of steps S3101 to S3106. For example, step S3101 may be implemented as an independent embodiment, step S3102 may be implemented as an independent embodiment, step S3104 may be implemented as an independent embodiment, and steps S3101 to S3103 may be implemented as independent embodiments, but are not limited thereto.

[0584] In some embodiments, steps S3102 to S3106 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0585] In some embodiments, steps S3103 to S3106 are optional, and one or more of these steps may be omitted or replaced in different embodiments.

[0586] FIG4A is a flow chart of a method for sending indication information according to an embodiment of the present disclosure. As shown in FIG4A , the method for sending indication information according to an embodiment of the present disclosure is executed by a terminal, and the method includes:

[0587] Step S4101: Determine that the network device is in a network energy saving (NES) state, and send first indication information to the network device in at least one of the following ways, wherein the first indication information is used to request a downlink signal and / or downlink channel:

[0588] Sending first indication information to the network device based on the PRACH signal;

[0589] The first indication information is sent to the network device based on other signals in the random access.

[0590] The optional implementation of step S4101 can refer to the optional implementation of steps S3102 to S3104 in Figure 3A, and other related parts in the embodiment involved in Figure 3A, which will not be repeated here.

[0591] FIG5A is a flow chart of sending and receiving indication information according to an embodiment of the present disclosure. As shown in FIG5A , the embodiment of the present disclosure involves a method for receiving indication information executed by a network device, and the method includes:

[0592] Step S5101: receiving first indication information sent by a terminal in at least one of the following ways, wherein the first indication information is information sent by the terminal when determining that the network device is in a network energy saving (NES) state and is used to request a downlink signal and / or downlink channel:

[0593] receiving first indication information sent by a terminal based on a PRACH signal;

[0594] receiving first indication information sent by a terminal based on other signals in random access;

[0595] Step S5102: Send a downlink signal and / or downlink channel corresponding to the first indication information to the terminal.

[0596] Optional implementations of step S5101 and step S5102 can be found in step S3101, optional implementations of steps S3105 to S3106 in FIG3A , and other related parts in the embodiment involved in FIG3A , which will not be repeated here.

[0597] FIG6A is a flow chart of a method for sending indication information according to an embodiment of the present disclosure. As shown in FIG6A , the embodiment of the present disclosure relates to a method for sending indication information, and the method includes:

[0598] Step S6101: The base station enters a network energy saving (NES) state.

[0599] Optionally, in one embodiment of the present disclosure, an NES base station is divided into an NES state and a non-NES state, which may be specifically as follows:

[0600] NES states include one or more of the following sub-states:

[0601] Sub-state 1: Synchronization Signal and PBCH block (SSB) is not sent, System Information Block (SIB) 1 is not sent, System Information Block (SIB) nSIBn (n is greater than 1) is not sent, and other common signals are not sent;

[0602] Sub-state 2: does not send SSB, sends SIB1, does not send SIBn (n is greater than 1), and does not send other common signals;

[0603] Sub-state 3: Send SSB, do not send SIB1, do not send SIBn (n is greater than 1), and do not send other common signals;

[0604] Sub-state 4: Do not send SSB, do not send SIB1, send SIBn (n is greater than 1), and do not send other common signals;

[0605] Sub-state 5: does not send SSB, sends SIB1, sends SIBn (n is greater than 1), and does not send other common signals;

[0606] Sub-state 6: Send SSB, do not send SIB1, send SIBn (n is greater than 1), and do not send other common signals;

[0607] Sub-state 7: Do not send SSB, do not send SIB1, do not send SIBn (n is greater than 1), and send other common signals;

[0608] Sub-state 8: does not send SSB, sends SIB1, does not send SIBn (n is greater than 1), and sends other common signals;

[0609] Sub-state 9: Send SSB, do not send SIB1, do not send SIBn (n is greater than 1), and send other common signals;

[0610] Sub-state 10: Do not send SSB, do not send SIB1, send SIBn (n is greater than 1), and send other common signals;

[0611] Sub-state 11: does not send SSB, sends SIB1, sends SIBn (n is greater than 1), and sends other common signals;

[0612] Sub-state 12: Send SSB, do not send SIB1, send SIBn (n is greater than 1), and send other common signals;

[0613] Non-NES status:

[0614] Sub-state 13: Send SSB, send SIB1, send SIBn (n is greater than 1), and send other common signals.

[0615] Other common signals are common signals except SIB1 and SIBn, where n is a positive integer greater than 1.

[0616] Optionally, in one embodiment of the present disclosure, this embodiment does not limit the number of sub-states included in the NES state and the types of signals sent or not sent in each sub-state. The base station may notify the terminal of the specific sub-state to be used by the base station in the NES state through a protocol predefined method, high-level configuration, or dynamic indication. This embodiment does not limit the method by which the base station notifies the terminal of the specific sub-state to be used by the base station in the NES state.

[0617] Step S6102: The base station sends a first signal;

[0618] Optionally, in one embodiment of the present disclosure, the first signal may be used by the NES terminal to determine whether the base station is in the NES state or the non-NES state.

[0619] Optionally, in one embodiment of the present disclosure, the first signal can be used by the NES terminal to determine that the base station is in the NES state, and further determine the sub-state of the base station.

[0620] Optionally, in one embodiment of the present disclosure, the first signal may inform the NES terminal of a specific sub-state when the base station is in the NES state. For example, the specific sub-state may be indicated by 2 bits.

[0621] Step S6103: The NES terminal determines whether the base station is in the NES state;

[0622] Step S6104: The NES terminal determines that the base station is in the NES state, and the NES terminal sends an indication message requesting a downlink signal or channel to the NES base station;

[0623] Optionally, in one embodiment of the present disclosure, the downlink signal and / or channel includes at least SSB and / or SIB 1. This embodiment does not limit the specific signals included in the requested downlink signal and / or channel.

[0624] The specific design and implementation of sending the downlink signal or channel indication information to the NES base station in step S6104 may be described as follows.

[0625] Step S6105: The base station sends the requested downlink signal and / or channel to the terminal.

[0626] Optionally, in one embodiment of the present disclosure, on the terminal side:

[0627] The terminal may, for example, request the base station to send a downlink signal and / or channel by:

[0628] The base station is configured with RACH configuration #1 for random access. Optionally, the base station is configured with RACH configuration #2 for requesting the base station to transmit downlink signals and / or channels, where the downlink signals and / or channels include at least SSBs and / or SIB1. Unless otherwise specified, a legacy terminal in this embodiment refers to a terminal that does not support NES.

[0629] Method 1: The NES terminal initiates random access. During the random access process, it carries an information element to request the base station to send a downlink signal and / or channel. The downlink signal and / or channel includes at least SSB and / or SIB1:

[0630] In the 4-step random access, the MSG3 scheduled by the Random Access Response (RAR) message 3 carries an information element requesting the base station to send a downlink signal and / or channel, or,

[0631] In the two-step random access, the message AMSG A carries information elements requesting the base station to send downlink signals and / or channels.

[0632] Optionally, in one embodiment of the present disclosure, the information element carried in MSG3 / MSG A may include at least one of the following:

[0633] The information element includes 1 bit indicating that the base station is requested to send SSB and SIB1, or the information element includes 2 bits indicating that the base station is requested to send SSB and SIB1, send SSB, or send SIB1;

[0634] Optionally, the information element may further include indication information of whether the requested SSB is a simplified SSB (e.g., a simplified SSB only includes PSS and SSS signals), and / or indication information of whether SIB1 and / or SIBn and / or other public information need to be transmitted only when there is a change;

[0635] Optionally, the information element may further include indication information requesting the base station to send a downlink signal and / or a beam used by the channel;

[0636] Optionally, the beam used to send the downlink signal and / or channel may be the beam corresponding to message 1 MSG 1 or message A MSG A;

[0637] Optionally, the beam used to send the downlink signal and / or channel may be beam #m corresponding to MSG 1 or MSG A and a valid beam in the n beams before and after beam #m (n is greater than or equal to 0);

[0638] Optionally, downlink signals and / or channels may be transmitted in all beam directions of the SSB;

[0639] The effective beam refers to one of the beams in all the beam directions of the SSB. There are eight beam directions in the SSB, and the beam indices are SSB#0 to 7. The first beam number can be SSB#m, and the n beams before and after the first beam are SSB#mn,…,SSB#m-1,SSB#m+1,…,SSB#m+n. Assuming the first beam number is 1, that is, SSB#1, and n is 2, the n beams before and after the first beam number are SSB#-1,SSB#0,SSB#2,SSB#3. Among them, SSB#0,SSB#2,SSB#3 are effective beams in all the beam directions of the SSB, and SSB#-1 is not in all the beam directions of the SSB and is not an effective beam. Assuming that the first beam number is 7, that is, SSB#7, and n is 2, then the n beams before and after the first beam number are SSB#5SSB#6, SSB#8, and SSB#9, respectively. Among them, SSB#5 and SSB#6 are valid beams in all beam directions of SSB, and SSB#8 and SSB#9 are not in all beam directions of SSB and are not valid beams.

[0640] Optionally, the information element may further include indication information requesting the base station to send a downlink signal and / or a number of times the channel is sent;

[0641] Optionally, the information element may further include indication information requesting the base station to send a downlink signal and / or a minimum interval between a channel and the request signal.

[0642] Method 2: The NES terminal initiates random access and can use a specific preamble in a specific valid transmission opportunity (valid RO) to request the base station to send downlink signals and / or channels:

[0643] Optionally, all or part of the ROs may be used to request the base station to send downlink signals and / or channels;

[0644] Optionally, an Association period is selected in every N2 Association periods, and one or more valid ROs are selected in the Association period;

[0645] Optionally, an Association pattern period is selected every N1 Association pattern periods, in the Association pattern period, an Association period is selected every N3 Association periods, and one or more valid ROs are selected in the association period;

[0646] Optionally, part or all of the preamble in a RO can be used;

[0647] Optionally, the base station may configure a specific preamble in a specific RO to request the base station to send a downlink signal and / or channel.

[0648] Method 3: The NES terminal initiates random access. The NES terminal can use the valid RO and preamble in RACH configuration #2 configured by the base station for requesting downlink signals and / or channels to request the base station to send downlink signals and / or channels:

[0649] Optionally, the time-frequency positions of the RO in RACH configuration #2 for requesting downlink signals and / or channels and the RO in RACH configuration #1 for random access are all different:

[0650] The RO configured with RACH configuration #2 has the same time domain position as the RO configured with RACH configuration #1, but different frequency domain positions.

[0651] The RO configured with RACH configuration #2 and the RO configured with RACH configuration #1 have different time domain positions but the same frequency domain positions.

[0652] The RO configured with RACH configuration #2 has different time domain positions and frequency domain positions from the RO configured with RACH configuration #1.

[0653] Optionally, the time-frequency positions of the RO in RACH configuration #2 used for requesting downlink signals and / or channels and the RO in RACH configuration #1 used for random access are exactly the same:

[0654] The preamble used in RACH configuration #2 is different from that used in RACH configuration #1.

[0655] Method 4: The NES terminal initiates random access and can use the specific preamble of a specific valid RO in the residual valid RO in RACH configuration #1 to request the base station to send a downlink signal and / or channel, where the downlink signal and / or channel includes at least SSB and / or SIB1;

[0656] Optionally, a valid RO is determined in the RO configured in RACH configuration #1. After the SSB is mapped to the valid RO and the preamble in the Association pattern period, the valid RO in which part or all of the preamble is not used for random access can be called a residual valid RO.

[0657] Method 5: The NES terminal may send a request to the base station to send a downlink signal and / or channel on a specific valid RO and a specific preamble according to a predefined RACH configuration. The downlink signal and / or channel includes at least SSB and / or SIB1.

[0658] Optionally, the predefined RACH configuration is RACH configuration #1 or RACH configuration #2, and method 1, method 2, method 3, or method 4 is used to request the base station to send a downlink signal and / or channel.

[0659] On the base station side: The base station can determine that the NES terminal requests the base station to send downlink signals and / or channels by the following methods:

[0660] Method 1: During the random access process, the base station may receive a signal element carrying a request for the base station to send a downlink signal and / or channel, and determine that the signal is used to request the base station to send a downlink signal and / or channel, wherein the downlink signal and / or channel includes at least SSB and / or SIB1.

[0661] The specific method is as described in terminal side method 1 and will not be repeated here.

[0662] Method 2: During random access, the base station may receive a specific preamble in a specific valid RO and determine that the signal is used to request the base station to send a downlink signal and / or channel, where the downlink signal and / or channel includes at least SSB and / or SIB1.

[0663] The specific method is as described in terminal side method 2 and will not be repeated here.

[0664] Method 3: During the random access process, the base station may receive a specific preamble in a specific valid RO in RACH configuration #2 for requesting a downlink signal and / or channel, and determine that the signal is used to request the base station to send a downlink signal and / or channel, where the downlink signal and / or channel includes at least an SSB and / or SIB1.

[0665] The specific method is as described in terminal side method 3 and will not be repeated here.

[0666] Method 4: During the random access process, the base station may receive a specific preamble in a specific valid RO in the residual valid RO in RACH configuration #1, and determine that the signal is used to request the base station to send a downlink signal and / or channel, where the downlink signal and / or channel includes at least an SSB and / or SIB1.

[0667] The specific method is as described in terminal side method 4 and will not be repeated here.

[0668] Method 5: During the random access process, the base station may receive a specific preamble in a specific valid RO in a predefined RACH configuration for requesting the base station to send a downlink signal and / or channel, and determine that the signal is used to request the base station to send a downlink signal and / or channel, wherein the downlink signal and / or channel includes at least an SSB and / or SIB1:

[0669] The predefined RACH configuration is RACH configuration #1 or RACH configuration #2.

[0670] The specific method is as described in terminal side method 5 and will not be repeated here.

[0671] Optionally, the downlink signal includes at least one of the following:

[0672] Synchronization signal block SSB;

[0673] System Information Block 1 SIB1;

[0674] System information block nSIBn, where n is a positive integer greater than 1;

[0675] Other common signals, wherein the other common signals are common signals other than the SIB1 and the SIBn.

[0676] Optionally, the downlink channel includes at least one of the following:

[0677] Physical Broadcast Channel (PBCH);

[0678] Physical Downlink Control Channel (PDCCH);

[0679] Physical Downlink Shared Channel (PDSCH).

[0680] Optionally, when the base station is in the NES state, the NES terminal can initiate random access on the RO time-frequency resources configured by the predefined RACH configuration, and carry information elements during the random access process to request the base station to send downlink signals and / or channels. The predefined RACH configuration can be RACH configuration #1 or RACH configuration #2. In MSG 3 in the 4-step random access and MSG A in the 2-step random access, the NES terminal can send information on the PUSCH. Based on this, the NES terminal can carry information elements in the above-mentioned PUSCH to request the base station to send downlink signals and / or channels, that is, MSG 3 and MSG A are used as request signals. This embodiment does not limit the information element format in MSG 3 and MSG A requesting the base station to send downlink signals and / or channels. The information elements carried in MSG3 or MSG A may include one or more of the following sub-information elements:

[0681] Cells carried in MSG3 or MSG A:

[0682] Subcell #1:

[0683] The signal combination included in the downlink signal and / or channel is predefined by the protocol or configured by base station high-layer signaling or SIB1 or dynamically indicated, and sub-information element #1 may include n bits, where the n bits indicate one or more combinations of the downlink signal and / or channel combination;

[0684] Option 1: n bits indicate an index corresponding to a combination. The value of n is determined by the number of signal combinations, m, and must be greater than or equal to ceil(log2(m)), where ceil indicates rounding up.

[0685] Option 2: n bits are bitmaps. If the k-th bit in the n bits is 1, the terminal requests the base station to send the k-th combination of downlink signals and / or channels. Alternatively, if the k-th bit in the n bits is 0, the UE requests the base station to send the k-th combination of downlink signals and / or channels. The value of n can be determined based on the number m of signal combinations, and n must be greater than or equal to m.

[0686] Optionally, when the downlink signal and / or channel includes one signal combination, such as Combination#a: SSB and SIB1, sub-IC#1 may include 1 bit to indicate a request for the base station to send SSB and SIB1.

[0687] Optionally, when the downlink signal and / or channel includes four signal combinations, such as Combination#a: SSB; Combination#b: SIB1; Combination#c: SIBn (n is greater than 1); Combination#d: other common signals:

[0688] Option 1: 2 bits can be used to indicate a combination;

[0689] Option 2: 4 bits can be used to indicate one or more combinations.

[0690] Optionally, if sub-IC#1 is not configured, the UE requests Combination#1 or predefined downlink signals and / or channels

[0691] Optionally, sub-information element #2: The information element may also include information indicating whether the requested SSB is a simplified SSB (e.g., a simplified SSB only includes PSS and SSS signals) and / or information indicating whether SIB1 and / or SIBn and / or other public information are transmitted only when there is a change:

[0692] 1 bit can be used to indicate whether the SSB is simplified SSB, where the value is 1, indicating that the SSB is simplified SSB, and the value is 0, indicating that the SSB is regular SSB; or the value is 0, indicating that the SSB is simplified SSB, and the value is 1, indicating that the SSB is regular SSB;

[0693] 1 bit can be used to indicate whether SIB1 and / or SIBn and / or other public information are transmitted only when there is a change, wherein a value of 1 indicates that SIB1 and / or SIBn and / or other public information are transmitted only when there is a change, and a value of 0 indicates that SIB1 and / or SIBn and / or other public information are transmitted only when the UE requests to send; or a value of 0 indicates that SIB1 and / or SIBn and / or other public information are transmitted only when there is a change, and a value of 1 indicates that SIB1 and / or SIBn and / or other public information are transmitted only when the UE requests to send.

[0694] Optionally, if sub-information element #2 is not configured, the regular SSB, SIB1 and / or SIBn and / or other public information requested by the UE will be transmitted when the terminal requests it or the terminal uses predefined criteria.

[0695] Sub-IC #3: The IC may also include information indicating the beam to be used by the base station for sending downlink signals and / or channels. Examples of the beam options are as follows:

[0696] Option 1: The beam used for sending downlink signals and / or channels is beam #m corresponding to MSG 1 or MSG A.

[0697] Option 2: The beam used to transmit downlink signals and / or channels is beam #m corresponding to MSG 1 or MSG A, and any valid beam in the n beams before and after beam #m (n is greater than or equal to 0).

[0698] Option 3: Send downlink signals and / or channels in all beam directions of SSB.

[0699] Optionally, this embodiment does not limit the number of beam schemes used, and sub-element #4 may indicate the specific scheme used.

[0700] Optionally, if sub-element #3 is not configured, Option 1 or a protocol-predefined solution is used.

[0701] Optionally, sub-information element #4: the information element may further include indication information requesting the base station to send downlink signals and / or channels for the number of transmission times k:

[0702] The number of transmissions k may be determined according to the capabilities of the NES terminal, enabling the NES terminal to successfully detect the downlink signal and / or channel with a high probability;

[0703] The NES terminal reports the number of transmissions k or other information that can be used to determine the number of transmissions k;

[0704] Optionally, k may be different for different signals.

[0705] Optionally, the number of transmissions k refers to sending downlink signals and / or channels k times on each beam in the beam determined according to sub-element #4.

[0706] Optionally, if sub-element #4 is not configured, the requested downlink signal and / or channel is sent once or a predefined number of times.

[0707] Optionally, sub-information element #5: the information element may also include information indicating a request for the base station to send a downlink signal and / or a minimum interval between the channel and the request signal:

[0708] The minimum interval may be determined based on the NES terminal capabilities, enabling the NES terminal to have sufficient preparation time to switch from sending uplink signals to receiving requested downlink signals and / or channels;

[0709] The NES terminal reports the minimum time interval or other information that can be used to determine the minimum time interval;

[0710] Option 1: The minimum interval refers to the number of symbols between the last symbol of the request signal and the first symbol of the downlink signal and / or channel sent by the base station for the first time;

[0711] Option 2: The minimum interval refers to the number of time slots between the time slot of the request signal and the time slot in which the base station first sends a downlink signal and / or channel.

[0712] Optionally, if sub-element #5 is not configured, Option 2 or a protocol-predefined solution is used.

[0713] In this embodiment, one or more functions in sub-cell #1, sub-cell #2, sub-cell #3, sub-cell #4, and sub-cell #5 can be enabled through other configuration information or protocol predefined schemes, which are not limited by this scheme.

[0714] An example of Option 1 of sub-cell #1 is as follows:

[0715] Another example of Option 1 of sub-cell #1 is as follows:

[0716] In this embodiment, there is no limitation on the mapping relationship between the bit value in the sub-cell and the parsing of the sub-cell.

[0717] Optionally, after receiving MSG 3 or MSG A as a request signal, the base station transmits, after a certain delay, the downlink signal and / or channel that the NES terminal desires to acquire, k times in a specified beam direction according to the information element indication in the request signal. The downlink signal and / or channel may be determined based on sub-information element #1 and / or sub-information element #2, or according to a protocol predefined scheme. The specified beam may be determined based on sub-information element #3 or a protocol predefined scheme. The number k may be determined based on sub-information element #4 or a protocol predefined scheme. The delay may be determined based on sub-information element #5 or a protocol predefined scheme.

[0718] Optionally, after receiving MSG 3 or MSG A as a request signal, the base station may stop the random access process.

[0719] At this time, the NES terminal does not expect to receive MSG 4 or MSG B.

[0720] Optionally, the base station may send a confirmation reply to the request signal of the NES terminal through other information

[0721] Optionally, after receiving MSG 3 or MSG A as a request signal, the base station may continue the random access process.

[0722] Optionally, in a subsequent random access process, the base station may send a confirmation reply to the request signal of the NES terminal.

[0723] Optionally, a new information element is added to MSG 4 in the 4-step random access or MSG B in the 2-step random access to notify the NES terminal that a downlink signal and / or a channel request has been received.

[0724] Optionally, the base station may send a confirmation reply to the request signal of the NES terminal through other information.

[0725] Optionally, after receiving MSG 3 or MSG A as request signals from m NES terminals, the base station sends k1 times the downlink signals and / or channels that the m NES terminals expect to obtain in the specified beam direction after a certain delay, where m is greater than or equal to 1.

[0726] The downlink signal and / or channel may be determined according to the sub-cell #1 and / or sub-cell #2 of each of the m NES terminals or according to a scheme predefined by a protocol.

[0727] Optionally, the downlink signal and / or channel is a union of the downlink signals and / or channels requested by the m NES terminals.

[0728] Optionally, the designated beam may be determined according to sub-information element #3 of each NES terminal among the m NES terminals or a scheme predefined by a protocol.

[0729] Optionally, the designated beam is a union of beams designated by the m NES terminals.

[0730] Optionally, the number k may be determined according to the sub-information cell #4 of each NES terminal in the m NES terminals or a scheme predefined by the protocol.

[0731] Optionally, the number k is a maximum number k of requests from the m NES terminals.

[0732] Optionally, the delay may be determined according to the sub-element #5 of each NES terminal in the m NES terminals or a scheme predefined by the protocol.

[0733] Optionally, the time delay may be determined according to the latest time of sending downlink signals and / or channels among the m NES terminals.

[0734] Optionally, based on the RO time-frequency resource configuration configured by the predefined RACH configuration, a specific preamble in a specific valid RO may be further configured to request the base station to send a downlink signal and / or channel, wherein the downlink signal and / or channel includes at least an SSB and / or SIB1. The predefined RACH configuration may be a RACH configuration#1 / 2 configuration. Based on the RO time-frequency resource configuration configured by the RACH configuration#1 / 2, the association period included in the Association pattern period is determined, the valid RO included in the association period is determined, and a specific preamble in a specific valid RO is selected to request the base station to send a downlink signal and / or channel. Sub-scheme 2-0-1 or sub-scheme 2-0-2 may be used to select a specific valid RO. An example is as follows:

[0735] Sub-plan 2-0-1:

[0736] Select one or more association periods in each N2 association period. You can configure the value of N2. If not configured, the default value, such as 1, is used.

[0737] Select one or more valid ROs in each of the one or more association periods, where the configured value indicates an index corresponding to a row in TS 38.321 Table 7.4-1;

[0738] Optionally, new mapping rules for selecting valid ROs and values ​​can be defined.

[0739] Sub-plan 2-0-2:

[0740] Select one or more Association pattern periods for each N1 Association pattern period and configure the value of N1. If not configured, use the default value, such as 1.

[0741] In each of the one or more Association pattern periods, select one or more Association periods for every N2 Association periods, and configure the value of N2. If not configured, use the default value, such as 1.

[0742] One or more valid ROs are selected in each of the one or more association periods. The configured value indicates the index corresponding to a row in TS 38.321 Table 7.4-1. Optionally, a new mapping rule between the value and the valid RO selection may be defined.

[0743] Optionally, sub-scheme 2-0-3 may be used to select a specific preamble in the specific valid RO.

[0744] Sub-plan 2-0-3:

[0745] In each of the specific one or more valid ROs,

[0746] m SSBs are associated with one valid RO. When m>=1, m*k preambles can be configured to request the base station to send downlink signals and / or channels. Each SSB has k preambles that can be used to request the base station to send downlink signals and / or channels, where k is an integer greater than or equal to 1.

[0747] m SSBs are associated with 1 valid RO. When m<1, k ROs can be configured to request the base station to send downlink signals and / or channels, where k is an integer greater than or equal to 1.

[0748] Configure the preamble start index k1 used to request the base station to send downlink signals and / or channels:

[0749] When m<1, the preamble indexed from k1 to k1+k-1 is used to request the base station to send downlink signals and / or channels;

[0750] When m>=1, the i-th (i=0, 1, m-1) SSB among the m SSBs, the preamble with index k1+i*k is used to request the base station to send a downlink signal and / or channel.

[0751] Optionally, a starting index value k0 is configured to determine that the k0-k0+k-1th preamble among the N preambles associated with an SSB in an RO is used to request the base station to send the SSB and / or SIB1.

[0752] Optionally, configure the starting index of the preamble in each SSB for requesting the base station to send a downlink signal and / or channel.

[0753] Optionally, you can configure the value of k. If not configured, the value of k is the default value, such as 1.

[0754] Optionally, the above configuration may be referred to as a request configuration.

[0755] Optional, an example: in the selected association period, 16 valid ROs (valid RO#0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30) are selected, where each valid RO selects 1 preamble, that is, a valid RO and preamble configuration for requesting the base station to send a downlink signal and / or channel is configured.

[0756] Optionally, a specific preamble in a specific valid RO in the RO configured using RACH configuration #1 is used to request the base station to send a downlink signal and / or channel, where the downlink signal and / or channel includes at least an SSB and / or SIB1. The specific valid RO and specific preamble can be used for random access by legacy terminals and for NES terminals to request the base station to send a downlink signal and / or channel. When the base station receives the same preamble, it cannot determine whether it is used for random access by legacy terminals or for NES terminals to request the base station to send a downlink signal and / or channel. The purpose of the received preamble can be determined in the following manner:

[0757] Option 1: The NES base station only allows NES terminals to access. When the NES base station receives a specific preamble on a specific valid RO, the base station determines that the signal is for the NES terminal to request the base station to send downlink signals and / or channels;

[0758] Option 2: The NES base station allows NES terminals and legacy terminals to access, and indicates through MSG 3 of 4-step random access or MSG A of 2-step random access whether a specific preamble on a specific valid RO is used to request the base station to send downlink signals and / or channels.

[0759] Optionally, the request configuration may also be used for the following purposes:

[0760] Sub-solution #2-1: The signal combination included in the downlink signal and / or channel is predefined in the protocol or configured by the base station high-layer signaling or SIB1 or dynamically indicated:

[0761] Multiple request configurations can be configured, one request configuration corresponds to one signal combination, and the enable request signal can request the base station to send different combinations of the multiple signal combinations.

[0762] Optionally, when only one request configuration is configured, the UE requests Combination #1 (SSB and SIB1) or a predefined downlink signal and / or channel.

[0763] Sub-solution #2-2: Different request configurations can also be used to distinguish whether the requested SSB is a simplified SSB (such as a simplified SSB that only contains PSS and SSS signals) and / or whether SIB1 and / or SIBn and / or other public information are transmitted only when there are changes.

[0764] For example, two request configurations can distinguish case #1 and case #2:

[0765] Case #1: The requested SSB is simplified SSB;

[0766] Case #2: The requested SSB is a regular SSB.

[0767] For example, two request configurations can distinguish case #3 from case #4:

[0768] Case #3: SIB1 and / or SIBn and / or other public information are transmitted only when there are changes;

[0769] Case #4: SIB1 and / or SIBn and / or other public information are transmitted only when the UE requests them to be transmitted.

[0770] Optionally, when only one request configuration is configured, the regular SSB, SIB1 and / or SIBn and / or other public information requested by the UE will be transmitted when the UE requests or the UE uses predefined criteria.

[0771] Sub-solution #2-3: The request configuration may also be used to request the base station to send downlink signals and / or indication information of the beam used by the channel:

[0772] Option 1: The beam used for sending downlink signals and / or channels is beam #m corresponding to MSG 1 or MSG A.

[0773] Option 2: The beam used to transmit downlink signals and / or channels is beam #m corresponding to MSG 1 or MSG A, and any valid beam in the n beams before and after beam #m (n is greater than or equal to 0).

[0774] Option 3: Send downlink signals and / or channels in all beam directions of SSB.

[0775] For example, the three request configurations may be distinguished as Option 1, Option 2, and Option 3.

[0776] This embodiment does not limit the number of beam schemes used, and the beam schemes used can be distinguished through different request configurations.

[0777] Optionally, when only one request configuration is configured, use Option 1 or the protocol predefined scheme.

[0778] Sub-solution #2-4: Different request configurations can also be used to distinguish the indication information for requesting the base station to send downlink signals and / or the number of transmission times k of the channel:

[0779] The number of transmissions k may be determined according to the capabilities of the NES terminal, enabling the NES terminal to successfully detect the downlink signal and / or channel with a high probability;

[0780] The NES terminal reports the number of transmissions k or other information that can be used to determine the number of transmissions k;

[0781] Optionally, k may be different for different signals;

[0782] Optionally, the number of transmissions k refers to sending k requested downlink signals and / or channels on each beam in the beam determined according to sub-element #3;

[0783] Optionally, when only one request configuration is configured, the requested downlink signal and / or channel is sent once or a predefined number of times.

[0784] Sub-solution #2-5: Different request configurations can also be used to differentiate the minimum interval between the request base station to send downlink signals and / or channels and request signals:

[0785] The minimum interval can be determined based on the NES terminal capabilities, allowing the NES terminal sufficient preparation time;

[0786] The NES terminal reports the minimum time interval or other information that can be used to determine the minimum time interval;

[0787] Option 1: The minimum interval refers to the number of symbols between the last symbol of the request signal and the first symbol of the downlink signal and / or channel sent by the base station for the first time;

[0788] Option 2: The minimum interval refers to the number of time slots between the time slot of the request signal and the time slot in which the base station first sends the downlink signal and / or channel;

[0789] Optionally, when only one request configuration is configured, use Option 2 or the protocol predefined scheme.

[0790] Optionally, in this embodiment, one or more functions in sub-solution #2-1, sub-solution #2-2, sub-solution #2-3, sub-solution #2-4, and sub-solution #2-5 can be enabled through other configuration information, which is not limited in this solution.

[0791] Optionally, after receiving the preamble serving as a request signal, the base station transmits, in accordance with the request configuration corresponding to the request signal and after a certain delay, the downlink signal and / or channel signal that the NES terminal desires to obtain, k times in a designated beam direction. The downlink signal and / or channel may be determined according to Sub-Scheme #2-1 and / or Sub-Scheme #2-2, or according to a scheme predefined by the protocol. The designated beam may be determined according to Sub-Scheme #2-3 or a scheme predefined by the protocol. The number k may be determined according to Sub-Scheme #2-4 or a scheme predefined by the protocol. The delay may be determined according to Sub-Scheme #2-5 or a scheme predefined by the protocol.

[0792] Optionally, after receiving the preamble serving as a request signal, the base station may stop the random access process.

[0793] At this time, the NES terminal does not expect to receive MSG 2 or MSG B.

[0794] Optionally, the base station may send a confirmation reply to the request signal of the NES terminal through other information.

[0795] Optionally, after receiving the preamble serving as a request signal, the base station may continue the random access process.

[0796] Optionally, in a subsequent random access process, the base station may send a confirmation reply to the request signal of the NES terminal.

[0797] Optionally, a new cell in MSG 2 in 4-step random access or MSG B in 2-step random access notifies the NES terminal that it has received a downlink signal and / or a channel request.

[0798] Optionally, the base station may send a confirmation reply to the request signal of the NES terminal through other information.

[0799] Optionally, after receiving preambles as request signals from m NES terminals, the base station sends k1 times the downlink signals and / or channels that the m NES terminals expect to obtain in a specified beam direction after a certain delay, where m is greater than or equal to 1.

[0800] Optionally, the downlink signal and / or channel may be determined according to sub-scheme #2-1 and / or sub-scheme #2-2 of each of the m NES terminals or according to a scheme predefined in a protocol.

[0801] Optionally, the downlink signal and / or channel is a union of the downlink signals and / or channels requested by the m NES terminals.

[0802] Optionally, the designated beam may be determined according to sub-scheme #2-3 of each NES terminal in the m NES terminals or a scheme predefined in a protocol.

[0803] Optionally, the designated beam is a union of beams designated by the m NES terminals.

[0804] Optionally, the number k may be determined according to sub-schemes #2-4 of each of the m NES terminals or a scheme predefined in a protocol.

[0805] Optionally, the number k is a maximum number k of requests from the m NES terminals.

[0806] Optionally, the time delay may be determined according to sub-schemes #2-5 of each of the m NES terminals or a scheme predefined in a protocol.

[0807] Optionally, the time delay may be determined according to the latest time of sending downlink signals and / or channels among the m NES terminals.

[0808] Optionally, the base station is configured with RACH configuration #1 for random access. At the same time, the base station is configured with RACH configuration #2 for requesting a base station downlink signal and / or channel, where the downlink signal and / or channel at least includes sending an SSB and / or SIB1, and includes at least the following configurations:

[0809] Optionally, the time-frequency positions of the RO in RACH configuration #2 and the RO in RACH configuration #1 are all different:

[0810] Sub-solution 3-1-1: The RO configured with RACH configuration #2 has the same time domain position as the RO configured with RACH configuration #1, but different frequency domain positions:

[0811] Option 1: RACH configuration #2 configures the RO in the frequency domain independently.

[0812] Option 2: The frequency domain position of the RO configured by RACH configuration #2 is obtained by adding offset #1 to the frequency domain position of the RO configured by RACH configuration #1. Other information of the RO configured by RACH configuration #2 can be obtained based on RACH configuration #1.

[0813] Sub-solution 3-1-2: The RO configured with RACH configuration #2 and the RO configured with RACH configuration #1 have different time domain positions but the same frequency domain positions:

[0814] Option 1: Time domain location-independent configuration of RO configured in RACH configuration #2;

[0815] Option 2: The time domain position of the RO configured by RACH configuration#2 is obtained by adding offset#2 to the time domain position of the RO configured by RACH configuration#1. Other information of the RO configured by RACH configuration#2 can be obtained based on RACH configuration#1.

[0816] Sub-solution 3-1-3: The RO configured with RACH configuration #2 has different time domain positions and frequency domain positions from the RO configured with RACH configuration #1:

[0817] Option 1: The time domain position and frequency domain position of the RO configured in RACH configuration #2 are configured independently;

[0818] Option 2: The frequency domain position of the RO configured with RACH configuration #2 is obtained by adding offset #1 to the frequency domain position of the RO configured with RACH configuration #1. The time domain position is obtained by adding offset #2 to the time domain position of the RO configured with RACH configuration #1. Other information of the RO configured with RACH configuration #2 can be obtained based on RACH configuration #1.

[0819] Optionally, the time-frequency positions of the RO in RACH configuration #2 used for requesting downlink signals and / or channels and the RO in RACH configuration #1 used for random access are exactly the same:

[0820] Sub-solution 3-1-4: The preamble used in RACH configuration #2 is different from that in RACH configuration #1. RACH configuration #2 configures the starting index and number of preambles used in the RO for requesting the base station to send downlink signals and / or channels.

[0821] Optionally, the starting index of the preamble used in the RO configured by RACH configuration #2 is adjacent to the maximum index of the preamble used in the RO configured by RACH configuration #1.

[0822] Optionally, in sub-schemes 3-1-1, 3-1-2, and 3-1-3, the RO of random access is different from the RO of requesting the base station to send a downlink signal and / or channel, and there is no restriction on whether the preamble of random access is the same as the preamble of requesting the base station to send a downlink signal and / or channel.

[0823] Optionally, in sub-solution 3-1-4, the RO of random access may be the same as the RO for requesting the base station to send a downlink signal and / or channel, and the preamble of random access may be different from the preamble for requesting the base station to send a downlink signal and / or channel.

[0824] Optionally, the mapping relationship between SSB and valid RO is mapping relationship #1 and mapping relationship #2 in RACH configuration #1 and RACH configuration #2 respectively:

[0825] When mapping relationship #1 and mapping relationship #2 are different, mapping relationship #2 of RACH configuration #2 is configured independently;

[0826] If mapping relationship #1 and mapping relationship #2 are the same, mapping relationship #2 may not be configured in RACH configuration #2.

[0827] Optionally, the above is a configuration example of RO time-frequency position configuration #2 and mapping relationship #2 between SSB and valid RO, which is not limited in this embodiment.

[0828] Optionally, the mapping between the SSB and the valid RO in RACH configuration #2 is determined according to the RO time-frequency position configuration in RACH configuration #2 and the mapping relationship #2 between the SSB and the valid RO.

[0829] Optionally, a RO time-frequency position configuration of RACH configuration #2 is as follows: the time domain position of RO of RACH configuration #2 is the same as that of RACH configuration #1, and frequency division multiplexing is performed in the frequency domain.

[0830] The method in the above embodiment can be used to determine the valid RO and preamble in the RO configured in RACH configuration #2 that is actually used to request the base station to transmit downlink signals and / or channels, thereby determining the request configuration. The request configuration can also implement the functions of sub-solutions #2-1, #2-2, #2-3, #2-4, and #2-5 in Example 2.

[0831] Optionally, in this embodiment, one or more functions in sub-solution #2-1, sub-solution #2-2, sub-solution #2-3, sub-solution #2-4, and sub-solution #2-5 can be enabled through other configuration information, which is not limited in this solution.

[0832] Optionally, after receiving the preamble serving as a request signal, the base station transmits, in accordance with the request configuration corresponding to the request signal and after a certain delay, the downlink signal and / or channel signal that the NES terminal desires to obtain, k times in a designated beam direction. The downlink signal and / or channel may be determined according to Sub-Scheme #2-1 and / or Sub-Scheme #2-2, or according to a scheme predefined by the protocol. The designated beam may be determined according to Sub-Scheme #2-3 or a scheme predefined by the protocol. The number k may be determined according to Sub-Scheme #2-4 or a scheme predefined by the protocol. The delay may be determined according to Sub-Scheme #2-5 or a scheme predefined by the protocol.

[0833] Optionally, after receiving the preamble serving as a request signal, the base station may stop the random access process.

[0834] At this time, the NES terminal does not expect to receive MSG 2 or MSG B.

[0835] Optionally, the base station may send a confirmation reply to the request signal of the NES terminal through other information.

[0836] Optionally, after receiving the preamble serving as a request signal, the base station may continue the random access process.

[0837] Optionally, in a subsequent random access process, the base station may send a confirmation reply to the request signal of the NES terminal.

[0838] Optionally, a new cell in MSG 2 in 4-step random access or MSG B in 2-step random access notifies the NES terminal that it has received a downlink signal and / or a channel request.

[0839] Optionally, the base station may send a confirmation reply to the request signal of the NES terminal through other information.

[0840] Optionally, after receiving preambles as request signals from m NES terminals, the base station sends k1 times the downlink signals and / or channels that the m NES terminals expect to obtain in a specified beam direction after a certain delay, where m is greater than or equal to 1.

[0841] Optionally, the downlink signal and / or channel may be determined according to sub-scheme #2-1 and / or sub-scheme #2-2 of each of the m NES terminals or according to a scheme predefined in a protocol.

[0842] Optionally, the downlink signal and / or channel is a union of the downlink signals and / or channels requested by the m NES terminals.

[0843] Optionally, the designated beam may be determined according to sub-scheme #2-3 of each NES terminal in the m NES terminals or a scheme predefined in a protocol.

[0844] Optionally, the designated beam is a union of beams designated by the m NES terminals.

[0845] Optionally, the number k may be determined according to sub-schemes #2-4 of each of the m NES terminals or a scheme predefined in a protocol.

[0846] Optionally, the number k is a maximum number k of requests from the m NES terminals.

[0847] Optionally, the time delay may be determined according to sub-schemes #2-5 of each of the m NES terminals or a scheme predefined in a protocol.

[0848] Optionally, the time delay may be determined according to the latest time of sending downlink signals and / or channels among the m NES terminals.

[0849] Optionally, the base station is configured with RACH configuration #1 for random access. Based on the RO time-frequency position and SSB mapping relationship #1 configured in RACH configuration #1, a valid RO is determined from the RO configured in RACH configuration #1. The valid RO and preamble for random access in the association pattern period may be further determined. In this case, part or all of the preambles in one or more valid ROs in the association pattern period may not be mapped to an SSB and are therefore not used for random access, such as the valid RO not mapped to an SSB in FIG2E .

[0850] Optionally, after the mapping of SSB to valid RO and preamble is completed in the Association pattern period, the valid RO in which some or all preambles are not used for random access can be called residual valid RO, and the preamble in the residual valid RO that is not used for random access can be called residual preamble. The mapping of SSB to residual valid RO can be used as follows:

[0851] Option 1: Use the mapping relationship between SSB and valid RO #1 to map SSB to residual valid RO, or

[0852] Option 2: You can additionally configure the mapping relationship #2 between SSB and valid RO to map SSB to residual valid RO.

[0853] Optionally, only the residual valid ROs whose preambles are all residual preambles are selected for mapping with SSB.

[0854] Optionally, the mapping relationship in Option 1 or Option 2 can be used for mapping.

[0855] Optionally, in Option 1 and Option 2, only the residual preamble in the residual valid RO participates in the SSB.

[0856] Optionally, the above mapping of SSBs to residual valid ROs and residual preambles is an example. This solution does not limit the implementation of the mapping of SSBs to residual valid ROs and residual preambles. Optionally, an Association period #2 is determined, in which each of all SSBs can be mapped to a residual valid RO and a residual preamble at least once.

[0857] Optionally, an Association pattern period #2 is determined, where the Association pattern period #2 includes N2 Association periods #2, and the duration of the pattern for enabling SSB mapping to valid RO does not exceed Z ms, where N2 is greater than or equal to 1. Wherein, Z is a protocol default value or a value configured by a higher layer, such as 160.

[0858] Optionally, the method in the above embodiment can be used to determine the valid RO and preamble in the RO configured in Association pattern period #2 that are actually used to request the base station to send downlink signals and / or channels, that is, to determine the request configuration. The downlink signals and / or channels include at least SSBs and / or SIB1. The request configuration can also implement the functions of sub-solutions #2-1, #2-2, #2-3, #2-4, and #2-5 in Example 2.

[0859] Optionally, in this embodiment, one or more functions in sub-solution #2-1, sub-solution #2-2, sub-solution #2-3, sub-solution #2-4, and sub-solution #2-5 can be enabled through other configuration information, which is not limited in this solution.

[0860] Optionally, after receiving the preamble serving as a request signal, the base station transmits, in accordance with the request configuration corresponding to the request signal and after a certain delay, the downlink signal and / or channel signal that the NES terminal desires to obtain, k times in a designated beam direction. The downlink signal and / or channel may be determined according to Sub-Scheme #2-1 and / or Sub-Scheme #2-2, or according to a scheme predefined by the protocol. The designated beam may be determined according to Sub-Scheme #2-3 or a scheme predefined by the protocol. The number k may be determined according to Sub-Scheme #2-4 or a scheme predefined by the protocol. The delay may be determined according to Sub-Scheme #2-5 or a scheme predefined by the protocol.

[0861] Optionally, after receiving the preamble serving as a request signal, the base station may stop the random access process.

[0862] At this time, the NES terminal does not expect to receive MSG 2 or MSG B.

[0863] Optionally, the base station may send a confirmation reply to the request signal of the NES terminal through other information.

[0864] Optionally, after receiving the preamble serving as a request signal, the base station may continue the random access process.

[0865] Optionally, in a subsequent random access process, the base station may send a confirmation reply to the request signal of the NES terminal.

[0866] Optionally, a new cell in MSG 2 in 4-step random access or MSG B in 2-step random access notifies the NES terminal that it has received a downlink signal and / or a channel request.

[0867] Optionally, the base station may send a confirmation reply to the request signal of the NES terminal through other information.

[0868] Optionally, after receiving preambles as request signals from m NES terminals, the base station sends k1 times the downlink signals and / or channels that the m NES terminals expect to obtain in a specified beam direction after a certain delay, where m is greater than or equal to 1.

[0869] Optionally, the downlink signal and / or channel may be determined according to sub-scheme #2-1 and / or sub-scheme #2-2 of each of the m NES terminals or according to a scheme predefined in a protocol.

[0870] Optionally, the downlink signal and / or channel is a union of the downlink signals and / or channels requested by the m NES terminals.

[0871] Optionally, the designated beam may be determined according to sub-scheme #2-3 of each NES terminal in the m NES terminals or a scheme predefined in a protocol.

[0872] Optionally, the designated beam is a union of beams designated by the m NES terminals.

[0873] Optionally, the number k may be determined according to sub-schemes #2-4 of each of the m NES terminals or a scheme predefined in a protocol.

[0874] Optionally, the number k is a maximum number k of requests from the m NES terminals.

[0875] Optionally, the time delay may be determined according to sub-schemes #2-5 of each of the m NES terminals or a scheme predefined in a protocol.

[0876] Optionally, the time delay may be determined according to the latest time of sending downlink signals and / or channels among the m NES terminals.

[0877] Optionally, considering the importance of requesting the base station to send a downlink signal and / or channel, the downlink signal and / or channel at least includes an SSB and / or SIB1 signal, when using a PRACH signal as a request signal, in the above-mentioned multiple embodiments, method a or b can be used to enable the power of the PRACH signal to be large enough to increase the probability of successful reception of the PRACH signal as a request signal.

[0878] Method a: Compared with the PRACH signal that is not a request signal, at least one of the following parameters can be configured differently to enable the transmit power of the PRACH signal that is a request signal to be sufficiently large:

[0879] preambleReceivedTargetPower, preamble target received power

[0880] powerRampingStep, preamble power ramping step length

[0881] Method b: When the PRACH signal is used as a request, it can be enabled by configuration or by protocol default and sent at full power.

[0882] The power difference between MSG 3 or MSG A and the PRACH signal is deltaPreamble #1 or deltaPreamble #2. When MSG 3 or MSG A is used as a request signal, in the above embodiments, method a or b can be used to ensure that the PRACH signal power is sufficiently high, thereby ensuring that the transmission power of MSG 3 or MSG A is sufficiently high when used as a request signal. Method c or d can also be used to ensure that the transmission power of MSG 3 or MSG A, which is used as a request signal, is sufficiently high.

[0883] Method c: Compared with MSG 3 or MSG A that is not used as a request signal, deltaPreamble#1 or deltaPreamble#2 is configured differently, and the power is large enough when MSG 3 or MSG A is enabled as a request signal.

[0884] Method d: MSG 3 or MSG A, which is used as the request signal, can be sent at full power by configuration or protocol default.

[0885] When the request signal is MSG 3 or MSG A, method a combined with method c, or method b combined with method c, may also be used to enable the transmission power of MSG 3 or MSG A serving as the request signal to be sufficiently large.

[0886] Optionally, when the NES terminal is in the RRC-CONNECTED state, the NES terminal may send a request signal to the first cell, wherein the request signal requests the second cell to send a requested downlink signal and / or channel:

[0887] One possible scenario is: when the NES terminal is in the RRC-CONNECTED state, the NES terminal can access the anchor cell, and the NES terminal sends a request signal to the anchor cell, requesting the non-anchor cell to send downlink signals and / or channel information.

[0888] One possible scenario is: when the NES terminal is in the RRC-CONNECTED state, the NES terminal may be in the CA state, and the NES terminal sends a request signal to the primary cell (PCell) or the primary secondary cell (PsCell) or the secondary primary cell (sPcell), requesting the SCell to send downlink signals and / or channel information. Optionally, the PCell or PsCell or sPcell and the SCell are not quasi-co-located.

[0889] Optionally, for the cell receiving the request signal, after receiving the request signal, there is no restriction on whether the cell that sends the downlink signal and / or channel request to the NES terminal is the same.

[0890] Optionally, any method in the above embodiments may be applied to NES terminals in any state, such as a CONNECTED terminal, an IDLE terminal, or an INACTIVE terminal.

[0891] Optionally, when the request-related configuration is determined through RRC signaling (the time-frequency position of the request signal, the available preamble, etc.), when the terminal enters the IDLE state or the INACTIVE state, the relevant configuration is retained, and the terminal can still send the request signal according to the configuration. Correspondingly, the base station needs to detect and receive the request signal at the corresponding resource location according to the configuration and perform the corresponding action.

[0892] In the embodiments of the present disclosure, some or all of the steps and their optional implementations may be arbitrarily combined with some or all of the steps in other embodiments, or may be arbitrarily combined with the optional implementations of other embodiments.

[0893] The embodiments of the present disclosure further provide an apparatus for implementing any of the above methods. For example, an apparatus is provided, comprising units or modules for implementing each step performed by a terminal in any of the above methods. For another example, another apparatus is provided, comprising units or modules for implementing each step performed by a network device (e.g., an access network device, a core network function node, a core network device, etc.) in any of the above methods.

[0894] It should be understood that the division of the various units or modules in the above device is merely a division of logical functions. In actual implementation, they may be fully or partially integrated into a physical entity, or they may be physically separated. In addition, the units or modules in the device may be implemented in the form of a processor calling software: for example, the device includes a processor, the processor is connected to a memory, and the memory stores instructions. The processor calls the instructions stored in the memory to implement any of the above methods or implement the functions of the various units or modules of the above device, wherein the processor is, for example, a general-purpose processor, such as a central processing unit (CPU) or a microprocessor, and the memory is a memory within the device or a memory outside the device. Alternatively, the units or modules in the device can be implemented in the form of hardware circuits, and the functions of some or all of the units or modules can be realized by designing the hardware circuits. The above-mentioned hardware circuits can be understood as one or more processors; for example, in one implementation, the above-mentioned hardware circuit is an application-specific integrated circuit (ASIC), which realizes the functions of some or all of the above units or modules by designing the logical relationship of the components in the circuit; for example, in another implementation, the above-mentioned hardware circuit can be realized by a programmable logic device (PLD). Taking a field programmable gate array (FPGA) as an example, it can include a large number of logic gate circuits, and the connection relationship between the logic gate circuits is configured by configuring the configuration file, thereby realizing the functions of some or all of the above units or modules. All units or modules of the above devices can be realized in the form of software called by the processor, or in the form of hardware circuits, or in part by the form of software called by the processor, and the rest by hardware circuits.

[0895] In the embodiment of the present disclosure, the processor is a circuit with signal processing capability. In one implementation, the processor can be a circuit with instruction reading and execution capability, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a microprocessor), or a digital signal processor (DSP); in another implementation, the processor can implement certain functions through the logical relationship of the hardware circuit, and the logical relationship of the above hardware circuit is fixed or reconfigurable, such as a hardware circuit implemented by a processor as an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as an FPGA. In a reconfigurable hardware circuit, the process of the processor loading a configuration document and implementing the hardware circuit configuration can be understood as the process of the processor loading instructions to implement the functions of some or all of the above units or modules. In addition, it can also be a hardware circuit designed for artificial intelligence, which can be understood as an ASIC, such as a neural network processing unit (NPU), a tensor processing unit (TPU), a deep learning processing unit (DPU), etc.

[0896] Figure 7A is a structural diagram of the terminal proposed in an embodiment of the present disclosure. As shown in Figure 7A, the terminal 7100 may include: a transceiver module, used to determine that the network device is in a network energy saving NES state, and send a first indication information to the network device in at least one of the following ways, wherein the first indication information is used to request a downlink signal and / or downlink channel: sending the first indication information to the network device based on a PRACH signal; sending the first indication information to the network device based on other signals in random access. Optionally, the above-mentioned transceiver module 7101 is used to execute at least one of the communication steps such as sending and / or receiving (such as step S3102 and step S3104, but not limited to this) performed by the terminal 101 in any of the above methods, which will not be repeated here.

[0897] Figure 7B is a structural diagram of a network device proposed in an embodiment of the present disclosure. As shown in Figure 7B, the network device 7200 may include: a transceiver module 7201. In some embodiments, the above-mentioned transceiver module is used to receive the first indication information sent by the terminal in at least one of the following ways, wherein the first indication information is sent by the terminal to determine that the network device is in the network energy saving NES state, and is used to request a downlink signal and / or downlink channel: receiving the first indication information sent by the terminal based on the PRACH signal; receiving the first indication information sent by the terminal based on other signals in random access; the transceiver module is also used to send a downlink signal and / or downlink channel corresponding to the first indication information to the terminal.

[0898] In some embodiments, the transceiver module may include a transmitting module and / or a receiving module, and the transmitting module and the receiving module may be separate or integrated. Optionally, the transceiver module may be interchangeable with the transceiver.

[0899] In some embodiments, the processing module can be a single module or can include multiple submodules. Optionally, the multiple submodules respectively execute all or part of the steps required to be executed by the processing module. Optionally, the processing module can be interchangeable with the processor.

[0900] Figure 8A is a schematic diagram of the structure of a communication device 8100 proposed in an embodiment of the present disclosure. Communication device 8100 can be a network device (e.g., an access network device, a core network device, etc.), a terminal (e.g., a user equipment, etc.), a chip, a chip system, or a processor that supports a network device to implement any of the above methods, or a chip, a chip system, or a processor that supports a terminal to implement any of the above methods. Communication device 8100 can be used to implement the methods described in the above method embodiments. For details, please refer to the description of the above method embodiments.

[0901] As shown in Figure 8A, the communication device 8100 includes one or more processors 8101. The processor 8101 can be a general-purpose processor or a dedicated processor, for example, a baseband processor or a central processing unit. The baseband processor can be used to process communication protocols and communication data, and the central processing unit can be used to control the communication device (such as a base station, a baseband chip, a terminal device, a terminal device chip, a DU or a CU, etc.), execute programs, and process program data. The communication device 8100 is used to perform any of the above methods.

[0902] In some embodiments, the communication device 8100 further includes one or more memories 8102 for storing instructions. Optionally, all or part of the memories 8102 may be located outside the communication device 8100.

[0903] In some embodiments, the communication device 8100 further includes one or more transceivers 8103. When the communication device 8100 includes one or more transceivers 8103, the transceiver 8103 performs at least one of the communication steps such as sending and / or receiving in the above method (for example, step S3101, step S3102, step S3104, step S3105, and step S3106, but not limited thereto), and the processor 8101 performs at least one of the other steps (for example, step S3103, but not limited thereto).

[0904] In some embodiments, a transceiver may include a receiver and / or a transmitter. The receiver and transmitter may be separate or integrated. Optionally, the terms transceiver, transceiver unit, transceiver, and transceiver circuit may be used interchangeably; the terms transmitter, transmitting unit, transmitter, and transmitting circuit may be used interchangeably; and the terms receiver, receiving unit, receiver, and receiving circuit may be used interchangeably.

[0905] In some embodiments, the communication device 8100 may include one or more interface circuits 8104. Optionally, the interface circuit 8104 is connected to the memory 8102. The interface circuit 8104 may be configured to receive signals from the memory 8102 or other devices, and may be configured to send signals to the memory 8102 or other devices. For example, the interface circuit 8104 may read instructions stored in the memory 8102 and send the instructions to the processor 8101.

[0906] The communication device 8100 described in the above embodiment may be a network device or a terminal, but the scope of the communication device 8100 described in the present disclosure is not limited thereto, and the structure of the communication device 8100 may not be limited by FIG. 8A. The communication device may be an independent device or may be part of a larger device. For example, the communication device may be: 1) an independent integrated circuit IC, or a chip, or a chip system or subsystem; (2) a collection of one or more ICs, optionally, the above IC collection may also include a storage component for storing data or programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, a terminal device, an intelligent terminal device, a cellular phone, a wireless device, a handheld device, a mobile unit, an in-vehicle device, a network device, a cloud device, an artificial intelligence device, etc.; (6) others, etc.

[0907] FIG8B is a schematic diagram of the structure of a chip 8200 according to an embodiment of the present disclosure. If the communication device 8100 can be a chip or a chip system, please refer to the schematic diagram of the structure of the chip 8200 shown in FIG8B , but the present disclosure is not limited thereto.

[0908] The chip 8200 includes one or more processors 8201 , and the chip 8200 is configured to execute any of the above methods.

[0909] In some embodiments, the chip 8200 further includes one or more interface circuits 8202. Optionally, the interface circuit 8202 is connected to the memory 8203. The interface circuit 8202 can be used to receive signals from the memory 8203 or other devices, and can be used to send signals to the memory 8203 or other devices. For example, the interface circuit 8202 can read instructions stored in the memory 8203 and send the instructions to the processor 8201.

[0910] In some embodiments, the interface circuit 8202 executes at least one of the communication steps such as sending and / or receiving in the above method (for example, step S3101, step S3102, step S3104, step S3105, step S3106, but not limited to these), and the processor 8201 executes at least one of the other steps (for example, step S3103, but not limited to this).

[0911] In some embodiments, terms such as interface circuit, interface, transceiver pin, and transceiver may be used interchangeably.

[0912] In some embodiments, the chip 8200 further includes one or more memories 8203 for storing instructions. Alternatively, all or part of the memories 8203 may be outside the chip 8200.

[0913] The present disclosure also proposes a storage medium having instructions stored thereon, which, when executed on the communication device 8100, causes the communication device 8100 to execute any of the above methods. Optionally, the storage medium is an electronic storage medium. Optionally, the storage medium is a computer-readable storage medium, but is not limited thereto, and may also be a storage medium readable by other devices. Optionally, the storage medium may be a non-transitory storage medium, but is not limited thereto, and may also be a temporary storage medium.

[0914] The present disclosure also provides a program product, which, when executed by the communication device 8100, enables the communication device 8100 to perform any of the above methods. Optionally, the program product is a computer program product.

[0915] The present disclosure also proposes a computer program, which, when executed on a computer, causes the computer to perform any one of the above methods.

Claims

1. A method for sending indication information, characterized in that, Applied to a terminal, the method includes: Determine that the network device is in the Network Energy Saving (NES) state, and send first indication information to the network device through at least one of the following methods, where the first indication information is used to request a downlink signal and / or a downlink channel: Send the first indication information to the network device based on a Physical Random Access Channel (PRACH) signal; Send the first indication information to the network device based on other signals in random access.

2. The method according to claim 1, characterized in that, The sending the first indication information to the network device based on other signals in random access includes: Send a first random access request to the network device, where the first random access request includes a cell for requesting the downlink signal and / or the downlink channel.

3. The method according to claim 2, characterized in that The sending the first random access request to the network device includes: In a 4-step random access, send a Message 3 (MSG3) scheduled by a Random Access Response (RAR) to the network device, where the MSG3 carries the cell.

4. The method according to claim 2, wherein The sending the first random access request to the network device includes: In a 2-step random access, send a Message A (MSGA) to the network device, where the MSGA carries the cell.

5. The method according to claim 3 or 4, characterized in that, The cell includes at least one of the following: A first bit, where the first bit is used to indicate a request for the network device to send a Synchronization Signal Block (SSB) and a System Information Block 1 (SIB1); A second bit, where the second bit is used to indicate a request for the network device to send at least one of the SSB and the SIB1; Second indication information, where the second indication information is used to indicate at least one of the following: Whether the requested SSB is a simplified SSB; Whether system information and / or other common signals are transmitted only when there is a change, where the system information includes at least one of a System Information Block 1 (SIB1) and a System Information Block n (SIBn), and the other common signals are common signals other than SIB1 and SIBn, and n is a positive integer greater than 1; Third indication information, where the third indication information is used to indicate the beam used by the network device to send the downlink signal and / or the downlink channel; Fourth indication information, where the fourth indication information is used to indicate the number of times the network device sends the downlink signal and / or the downlink channel; Fifth indication information, where the fifth indication information is used to indicate the minimum time interval between the time point of receiving the downlink signal and / or the downlink channel and the time point of sending the first indication information.

6. The method according to claim 5, characterized in that, Where The cell includes the third indication information, and the third indication information is used to indicate at least one of the following: In a 4-step random access, the used beam is a first beam corresponding to Message 3 (MSG3); In a 2-step random access, the used beam is a second beam corresponding to Message A (MSGA); In a 4-step random access, the used beam is a valid beam among the first beam number corresponding to the first beam and n beams before and after the first beam number, where n is a positive integer greater than or equal to zero; In the two-step random access, the beam used is the valid beam among the second beam number corresponding to the second beam and the n beams before and after the second beam number; In the four-step random access or the two-step random access, the direction of the beam used is all the beam directions of the SSB.

7. The method according to claim 2, wherein Sending the first indication information to the network device based on other signals in the random access includes: Sending a second random access request to the network device, where the second random access request includes a specific preamble in a specific valid transmission occasion valid RO, and the specific preamble is used to request the downlink signal and / or the downlink channel.

8. The method according to claim 7, wherein Wherein, The specific valid transmission occasion is all transmission occasions or some transmission occasions.

9. The method according to claim 8, wherein The method further includes: Selecting a first association period in every N2 association periods Association period, and selecting one or more valid transmission occasions valid RO in the first association period Association period, where N2 is a positive integer greater than or equal to 1; Selecting an association pattern period in every N1 association pattern periods Association pattern period. In the one association pattern period Association pattern period, selecting a second association period in every N3 association periods Association period, and selecting one or more valid transmission occasions valid RO in the second association period association period, where N1 is a positive integer greater than or equal to 1, and N3 is a positive integer greater than or equal to 1.

10. The method according to claim 7, wherein Wherein, The specific preamble is all or part of the preambles in a transmission occasion RO.

11. The method according to claim 2, wherein Sending the first indication information to the network device based on other signals in the random access includes: Sending the first indication information to the network device using the valid transmission occasion valid RO and the preamble in the second random access configuration RACH configuration#2, where the RACH configuration#2 is configured by the network device and is used to request the configuration of the downlink signal and / or the downlink channel.

12. The method according to claim 11, wherein Wherein, The time-frequency position of the transmission occasion RO in the second random access configuration RACH configuration#2 is different from that of the RO in the first random access configuration RACH configuration#1. The first random access configuration RACH configuration#1 is configured by the network device and is used for random access configuration.

13. The method according to claim 12, wherein Wherein, The time-frequency positions are different, including at least one of the following: The transmission occasion RO in the second random access configuration RACH configuration#2 has the same time domain position as the RO in the first random access configuration RACH configuration#1, but different frequency domain positions; The transmission occasion RO in the second random access configuration RACH configuration#2 has different time domain positions from the RO in the first random access configuration RACH configuration#1, but the same frequency domain position; The transmission occasion RO in the second random access configuration RACH configuration#2 has different time domain positions and different frequency domain positions from the RO in the first random access configuration RACH configuration#1.

14. The method according to claim 11, wherein Wherein, The transmission occasion RO in the second random access configuration RACH configuration#2 has the same time-frequency position as the RO in the first random access configuration RACH configuration#1.

15. The method according to claim 14, wherein Wherein, The same time-frequency position includes that the preamble used in the second random access configuration RACH configuration#2 is different from the preamble used in the first random access configuration RACH configuration#1.

16. The method according to claim 2, wherein Sending the first indication information to the network device based on other signals in random access includes: Sending the first indication information to the network device using a specific preamble of a specific valid transmission occasion valid RO, where the specific valid transmission occasion valid RO is the transmission occasion RO in the remaining valid transmission occasions valid RO in the first random access configuration RACH configuration#1, the first random access configuration RACH configuration#1 is configured by the network device and is used for random access configuration, and the remaining valid transmission occasions are the valid transmission occasions valid RO in the association mode period Association pattern period where after the valid transmission occasions valid RO and preambles preamble are mapped with the synchronization signal block SSB, some or all of the preambles preamble in the valid transmission occasions valid RO are not used for random access.

17. The method according to claim 16, wherein Sending the first indication information to the network device includes: Sending the first indication information to the network device using a specific preamble of a specific valid transmission occasion valid RO in a predefined third random access configuration RACH configuration#3.

18. The method according to claim 1, characterized in that, Wherein, Before sending the first indication information to the network device based on the PRACH signal, it further includes: The PRACH signal for sending the first indication information is different from at least one of the following parameters of the PRACH signal for random access: Preamble target received power; Preamble power ramping step size.

19. The method according to claim 1, characterized in that, Sending the first indication information to the network device based on the PRACH signal includes: Sending the PRACH signal carrying the first indication information to the network device with full power.

20. The method according to claim 1, characterized in that, Sending the first indication information to the network device includes: When the terminal is in the RRC-CONNECTED state, sending the first indication information to a first cell, where the first indication information is used to request the second cell to send the requested downlink signal and / or downlink channel.

21. The method according to any one of claims 1 to 20, characterized in that, The downlink signal includes at least one of the following: Synchronization signal block (SSB); System information block 1 (SIB1); System information block n (SIBn), where n is a positive integer greater than 1; Other common signals, where the other common signals are common signals other than SIB1 and SIBn.

22. The method according to any one of claims 1 to 20, characterized in that, The downlink channel includes at least one of the following: Physical broadcast channel (PBCH); Physical downlink control channel (PDCCH); Physical downlink shared channel (PDSCH).

23. The method according to any one of claims 1 to 22, characterized in that, The method further includes: Receiving an indication signal sent by the network device, where the indication signal is used to indicate whether the network device is in the network energy saving (NES) state and / or the specific sub-state used by the network device when in the NES state and / or the specific sub-state used by the network device when in the non-NES state.

24. The method according to claim 23, wherein Wherein, The specific sub-state used by the network device when in the NES state is one sub-state in a first sub-state set, and the first sub-state set includes at least one of the following sub-states: The first sub-state, where the first sub-state is a state of not sending SSB, not sending SIB1, not sending SIBn, and not sending other common signals, where n is a positive integer greater than 1; The second sub-state, where the second sub-state is a state of not sending SSB, sending SIB1, not sending SIBn, and not sending other common signals; The third sub-state, where the third sub-state is a state of sending SSB, not sending SIB1, not sending SIBn, and not sending other common signals; The fourth sub-state, where the fourth sub-state is a state of not sending SSB, not sending SIB1, sending SIBn, and not sending other common signals; The fifth sub-state, where the fifth sub-state is a state of not sending SSB, sending SIB1, sending SIBn, and not sending other common signals; The sixth sub-state, where the sixth sub-state is a state of sending SSB, not sending SIB1, sending SIBn, and not sending other common signals; The seventh sub-state, where the seventh sub-state is a state of not transmitting SSB, not transmitting SIB1, not transmitting SIBn, and transmitting other common signals; The eighth sub-state, where the eighth sub-state is a state of not transmitting SSB, transmitting SIB1, not transmitting SIBn, and transmitting other common signals; The ninth sub-state, where the ninth sub-state is a state of transmitting SSB, not transmitting SIB1, not transmitting SIBn, and transmitting other common signals; The tenth sub-state, where the tenth sub-state is a state of not transmitting SSB, not transmitting SIB1, transmitting SIBn, and transmitting other common signals; The eleventh sub-state, where the eleventh sub-state is a state of not transmitting SSB, transmitting SIB1, transmitting SIBn, and transmitting other common signals; The twelfth sub-state, where the twelfth sub-state is a state of transmitting SSB, not transmitting SIB1, transmitting SIBn, and transmitting other common signals.

25. The method according to claim 23, wherein Wherein, The specific sub-states used when the network device is in the non-NES state include: The thirteenth sub-state, where the thirteenth sub-state is a state of transmitting SSB, transmitting SIB1, transmitting SIBn (n>1), and transmitting other common signals.

26. The method according to any one of claims 23 to 25, characterized in that Wherein, The indication signal includes a first number of bits, and the first number corresponds to the number of sub-states in the first set of sub-states.

27. A method for receiving indication information, characterized in that, Applied to a network device, the method includes: Receiving first indication information sent by a terminal in at least one of the following ways, where the first indication information is sent by the terminal when determining that the network device is in the network energy saving NES state and is used to request information on a downlink signal and / or a downlink channel: Receiving the first indication information sent by the terminal based on a PRACH signal; Receiving the first indication information sent by the terminal based on other signals in random access; Sending a downlink signal and / or a downlink channel corresponding to the first indication information to the terminal.

28. The method according to claim 27, wherein The receiving the first indication information sent by the terminal based on other signals in random access includes: Receiving a first random access request sent by the terminal, where the first random access request includes a cell, and the cell is used to request the downlink signal and / or the downlink channel.

29. The method according to claim 27, wherein The receiving the first indication information sent by the terminal based on other signals in random access includes: Receiving a second random access request sent by the terminal, where the second random access request includes a specific preamble in a specific valid RO (valid transmission opportunity), and the specific preamble is used to request a downlink signal and / or a downlink channel.

30. The method according to claim 27, wherein The receiving the first indication information sent by the terminal based on other signals in random access includes: Receiving the first indication information sent by the terminal using a valid transmission opportunity (valid RO) and a preamble in a second random access configuration (RACH configuration #2), where the RACH configuration #2 is configured by the network device for, and requests the configuration of the downlink signal and / or the downlink channel.

31. The method according to claim 27, wherein The receiving the first indication information sent by the terminal based on other signals in random access includes: Receiving the first indication information sent by the terminal using a specific preamble for a specific valid transmission opportunity (valid RO), where the specific valid transmission opportunity (valid RO) is a transmission opportunity (RO) among the remaining valid transmission opportunities (valid ROs) in a first random access configuration (RACH configuration #1), and the first random access configuration (RACH configuration #1) is configured by the network device and is used for random access configuration.

32. The method according to claim 27, wherein The receiving the first indication information sent by the terminal based on other signals in random access includes: Receiving the first indication information sent by the terminal using a specific preamble for a specific valid transmission opportunity (valid RO) in a predefined third random access configuration (RACH configuration).

33. The method according to claim 27, wherein The method further includes: Sending an indication signal to the terminal, where the indication signal is used to indicate the sub-state used by the network device.

34. A terminal, characterized in that, The terminal includes: A transceiver module, configured to determine that the network device is in a network energy saving (NES) state, and send the first indication information to the network device through at least one of the following ways, where the first indication information is used to request a downlink signal and / or a downlink channel: Sending the first indication information to the network device based on a PRACH signal; Sending the first indication information to the network device based on other signals in random access.

35. A network device, characterized in that, The network device includes: A transceiver module, configured to receive the first indication information sent by the terminal through at least one of the following ways, where the first indication information is sent by the terminal when determining that the network device is in a network energy saving (NES) state and is used to request a downlink signal and / or a downlink channel information: Receiving the first indication information sent by the terminal based on a PRACH signal; Receiving the first indication information sent by the terminal based on other signals in random access; The transceiver module is further configured to send a downlink signal and / or a downlink channel corresponding to the first indication information to the terminal.

36. A terminal, characterized in that, Includes: One or more processors; Wherein, the terminal is configured to execute the indication information sending method according to any one of claims 1 to 26.

37. A network device, characterized in that, Includes: One or more processors; Wherein, the network device is configured to execute the indication information receiving method according to any one of claims 27 to 33.

38. A communication system, characterized in that, It includes a terminal and a network device. Among them, the network device is configured to implement the indication information sending method described in any one of claims 1 to 26, and the network device is configured to implement the indication information receiving method described in any one of claims 27 to 33.

39. A storage medium storing instructions, characterized in that, When the instruction runs on the communication device, it causes the communication device to execute the indication information sending method described in any one of claims 1 to 26 or the indication information receiving method described in any one of claims 27 to 33.

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